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Home My WebLink About4103_Guilford_Greensboro_WhiteStreet_MSWLF_CDLF_GW_FID1350750_20190820I pENR USE ONLY [:]Paper Report [:]Electronic Data - Email CD (data loaded: Yes / No Doc/Event #: 'NC DENR Environmental Monitoring Division of Waste Management - Solid Waste Reporting Form Notice: This form and any information attached to it are "Public Records" as defined in NC General Statute 132-1. As such, these documents are available for inspection and examination by any person upon request (NC General Statute 132-6). Instructions: Prepare one form for each individually monitored unit. Please type or print legibly. Attach a notification table with values that attain or exceed NC 2L groundwater standards or NC 28 surface water standards. The notification must include a preliminary analysis of the cause and significance of each value. (e.g. naturally occurring, off -site source, pre-existing condition, etc.). Attach a notification table of any groundwater or surface water values that equal or exceed the reporting limits. Attach a notification table of any methane gas values that attain or exceed explosive gas levels. This includes any structures on or nearby the facility (NCAC 13B .1629 (4)(a)(i). Send the original signed and sealed form, any tables, and Electronic Data Deliverable to: Compliance Unit, NCDENR-DWM, Solid Waste Section, 1646 Mail Service Center, Raleigh, NC 27699-1646, Solid Waste Monitoring Data Submittal Information Name of entity submitting data (laboratory, consultant, facility owner): Golder Associates NC, Inc. on behalf of the City of Greensboro Contact for questions about data formatting. Include data preparer's name, telephone number and E-mail address: Name: David Y. Reedy II Phone: 336-852-4903 E-mail: dreedy@golder.com NC Landfill Rule: Actual sampling dates (e.g.. Facility name: Facility Address: Facility Permit # (.0500 or .1600) October 20-24, 2006) White Street Landfill - Phase II 2503 White Street 41-03 .1600 April 8 - 15, 2019 Greensboro, NC 27405 Environmental Status: (Check all that apply) Initial/Background Monitoring Detection Monitoring of data submitted: (Check all that apply) Groundwater monitoring data from monitoring wells Groundwater monitoring data from private water supply wells Leachate monitoring data ❑ Surface water monitoring data Assessment Monitoring Corrective Action Methane gas monitoring data Corrective action data (specify) MNA Parameters Other(specify) Notification attached? No. No groundwater or surface water standards were exceeded. X Yes, a notification of values exceeding a groundwater or surface water standard is attached. It includes a list of groundwater and surface water monitoring points, dates, analytical values, NC 2L groundwater standard, NC 26 surface water standard or NC Solid Waste GWPS and preliminary analysis of the cause and significance of any concentration. Yes, a notification of values exceeding an explosive methane gas limit is attached. It includes the methane monitoring points dates, sample values and explosive methane gas limits. Certification To the best of my knowledge, the information reported and statements made on this data submittal and attachments are true and correct. Furthermore, I have attached complete notification of any sampling values meeting or exceeding groundwater standards or explosive gas levels, and a preliminary analysis of the cause and significance of concentrations exceeding groundwater standards. I am aware that there are significant penalties for making any false statement, representation, or certification including the possibility of a fine and imprisonment. David Y. Reedy II, PG Signature Senior Hydrogeologist Title d—a 7G• Date Golder Associates NC, Inc., 5B Oak Branch Drive, Greensboro, NC 27407 Facility Representative Address C-2862 NC PE Firm License Number (if applicable effective May 1, 2009) Revised 6/2009 336-852-4903 (Area Code) Telephone Number Affix NC Licensed/ Professional Geologist Seal .� _��saeeaa:Qn 1963 �-� ES to �A -, GOLDER REPORT First Semi -Annual 2019 Water Quality Monitoring Report White Street Landfill - Phase ll, Permit No. 41-03 Submitted to: City of Greensboro Field Operations Department 401 Patton Avenue Greensboro, North Carolina 27406 Submitted by: Golder Associates NC, Inc. 5B Oak Branch Drive, Greensboro, North Carolina, USA 27407 +1 336 852-4903 1668421.105 August 19, 2019 August 19, 2019 Distribution List 1668421.105 Richard Lovett, PG, Environmental Compliance Support Manager, Field Operations, City of Greensboro, 401 Patton Avenue, Greensboro, NC 27406. 336-373-4188. Richard.Lovett@greensboro-nc.gov Anna Stoddard, Environmental Services Analyst, Field Operations, City of Greensboro, 401 Patton Avenue, Greensboro, NC 27406. 336-373-2495. Anna.Stoddard@greensboro-nc.gov Lewis Walker, Landfill Compliance Supervisor, Field Operations, City of Greensboro, 2503 White Street, Greensboro, NC 27405. 336-254-8096. Lewis.Walker@greensboro-nc.gov Jackie Drummond, Department of Environmental Quality, Division of Waste Management - Solid Waste Section, 2090 US Highway 70, Swannanoa, NC 28778. 828-296-4706. jaclynne.drummond@ncdenr.gov 4 GOLDER August 19, 2019 1668421.105 Executive Summary On behalf of the City of Greensboro, Golder Associates NC, Inc. (Golder) is submitting the enclosed Water Quality Monitoring Report, which documents the results of the April 8 - 15, 2019, compliance monitoring event for the Phase II facility at the White Street Landfill. Compliance Monitoring Program During the October 2018 event, cobalt was detected at concentrations above the Practical Quantitation Limit (PQL) and Interim Maximum Allowable Concentration (IMAC) at downgradient compliance wells II-1 and II-6. Cobalt and vanadium were also detected at estimated concentrations below their respective PQLs, but above their IMACs in the samples from one or more downgradient compliance wells during this event. Per 15A NCAC 02L .0202 (b)(1), "where the standard (i.e., the NC 2L Standard) for a substance is less than the practical quantitation limit (PQL), the detection of that substance at or above the PQL constitutes a violation of the standard." The groundwater standards for cobalt and vanadium are 1 micrograms per liter (ug/L) and 0.3 ug/L, respectively. The PQL for both cobalt and vanadium is 10 ug/L. Further, historical concentrations of cobalt and vanadium are similar at upgradient and downgradient wells, which support that the constituents are naturally occurring. Details regarding these naturally occurring metals are presented in the October 28, 2016, Alternate Source Demonstration (ASD) and November 20, 2017, addendum. Therefore, no further action is warranted for cobalt and vanadium. During this event, the following Appendix I VOCs were detected at concentrations above their respective PQLs and groundwater standards in samples from compliance monitoring wells: 1,4-dichlorobenzene at II-1 and vinyl chloride at II-2. The indicator parameter chloride was also detected at II-1 at a concentration above the PQL and groundwater standard during this event. Detected constituents and concentrations are generally consistent with historical data. The constituent 1,4-dioxane was detected above the PQL and NC 2L Standard in the samples from II-1, II4A, II-6, and II-8 during this event. This was the second time this parameter was analyzed for surface water and groundwater samples per the May 29, 2018, memorandum from the NC Department of Environmental Quality (DEQ) in addition to permit -required constituents. It is noted that 1,4-dioxane is not required by permit or regulation as part of the compliance monitoring program. No NC Appendix I constituents were reported above their respective PQLs and applicable surface water standards during the April 2019 event. Copper was reported at estimated concentrations below the PQL, but above the Acute Standard in the samples from upstream monitoring points SW-2 and SW-3 and downstream monitoring points SW-4 and SW-5 and at an estimated concentration below the PQL but above the Chronic Standard in the sample from upstream monitoring point SW-1. Lead was reported at an estimated concentration below the PQL but above the Chronic Standard in the sample from upstream monitoring point SW-1. Because the concentrations are below their respective PQLs and based on similar concentrations at upstream and downstream samples, the exceedances do not appear to be related to landfill activities from the facility and no further action is warranted. Corrective Action Monitoring Program During this event, cadmium at sentinel well SMW-1 was reported at a concentration above the PQL and NC 2L Standard/IMAC, as it has been during previous events. Cobalt and vanadium were detected at estimated 4 GOLDER August 19, 2019 1668421.105 concentrations below their respective PQLs but above their respective IMACs during this event; concentrations are generally consistent with historical data and no further action is warranted for these estimated concentrations. Cadmium, cobalt, and vanadium were determined to be naturally occurring in the October 28, 2016, ASD. Vinyl chloride was detected above the PQL and NC2L Standard in the sample from SMW-3 during the event. No other Appendix I VOCs were detected at concentrations above groundwater standards during this event at sentinel wells. The constituent 1,4-dioxane was detected at a concentration above the PQL and NC 2L Standard in samples from assessment well II-313 and sentinel wells SMW-1 and SMW-4 during this event. As stated above, this constituent is not required as part of the facility's monitoring program. Based on these results, the City of Greensboro will continue groundwater monitoring in accordance with the requirements of the Assessment Monitoring and Corrective Action Programs, as outlined in Title 15A NCAC 13B .1635 and .1637. The next semi-annual monitoring event is tentatively scheduled for October 2019. If you have any questions, please contact the undersigned at 336-852-4903. 4 GOLDER August 19, 2019 Table of Contents 1.0 INTRODUCTION.............................................................................................................................................1 1.1 Site Description and Background.........................................................................................................1 1.2 Compliance Monitoring History............................................................................................................1 1.3 Hydrogeologic Setting..........................................................................................................................3 2.0 FIELD PROGRAM, MONITORING RESULTS, AND DISCUSSION.............................................................3 2.1 Visual Inspection Program...................................................................................................................4 2.2 Well Network and Groundwater Elevation Measurements..................................................................4 2.3 April 2019 Monitoring Event.................................................................................................................4 2.4 Laboratory Analysis Program...............................................................................................................5 3.0 LABORATORY AND FIELD QA/QC..............................................................................................................5 4.0 DATA EVALUATION......................................................................................................................................5 4.1 North Carolina Groundwater and Surface Water Quality Standard Comparisons...............................6 4.1.1 Compliance Monitoring...................................................................................................................6 4.1.2 Corrective Action Monitoring...........................................................................................................6 5.0 CORRECTIVE ACTION PERFORMANCE MONITORING............................................................................7 6.0 CONCLUSIONS..............................................................................................................................................8 7.0 REFERENCES................................................................................................................................................8 TABLES Table 1 Summary of Historical Groundwater Elevation Data Table 2 Summary of Estimated Horizontal Flow Velocities Table 3 Summary of Well Construction Information Table 4 Summary of Groundwater Monitoring Results, Detected Constituents Table 5 Summary of Groundwater Field Parameters Table 6 Summary of Surface Water Monitoring Results, Detected Constituents Table 7 Summary of Surface Water Field Parameters ,> GOLDER iv August 19, 2019 FIGURES 1668421.105 Figure 1 Groundwater Surface Contour Map, April 8, 2019 Figure 2 Surface Water Location Map APPENDICES Appendix A Groundwater and Surface Water Sampling Logs Appendix B April 2019 Groundwater Certificates -of -Analysis, Chain -of -Custody Forms and Laboratory Data Reviews Appendix C EPA Natural Attenuation Screening Protocol Forms and BIOCHLOR Monitored Natural Attenuation Analysis for April 2019 Sampling Event 4GOLDER August 19, 2019 1668421.105 1.0 INTRODUCTION This report summarizes the monitoring results from the April 8 - 15, 2019, groundwater and surface water sampling event at Phase II of the White Street Landfill in Greensboro, North Carolina (NC). The active unlined construction and demolition debris (C&D) over municipal solid waste (MSW) facility is monitored in accordance with Title 15A NCAC 13B.1635 and .1637. The facility is in central Guilford County and is comprised of a closed, unlined MSW facility (Phase 1), an active unlined C&D over MSW facility (Phase 11), an active Subtitle D MSW facility (Phase 111), and an active Type I compost facility. Phase II is currently in Assessment Monitoring and Corrective Action for several detected volatile organic constituents (VOCs) that exceed their respective groundwater standards. The facility is owned and operated by the City of Greensboro under Permit Nos. 41-03 and 41-12 issued by the NC Department of Environmental Quality (DEQ, formerly NC Department of Environment and Natural Resources). The northeastern portion of the landfill property is comprised of the Phase I and Phase II landfills, which are covered under Permit No. 41-03. The southwestern portion of the facility is comprised of the Phase III, which is covered under permit No. 41-12. The water quality monitoring results for the Phase I and Phase III facilities are submitted under separate covers. 1.1 Site Description and Background The location of the facility is shown on the inlay on Figure 1. The White Street Landfill is located approximately 5 miles northeast of downtown Greensboro, NC in Guilford County. Access to the site is from Cone Boulevard, which turns into Ralph Johnson way and ends at White Street with the landfill entrance to the East of this intersection. Part of the James River watershed, North Buffalo Creek flows from southwest to northeast along the northwestern border of the facility and then flows eastward, away from the facility near the northeastern end of the facility. The location of this surface water feature and its associated tributaries are shown on the inlay on Figure 1. Based on the topography as shown on Figure 1, topographic surface elevations at the facility range from approximately 700 feet above mean sea level (AMSL) to nearly 850 feet AMSL. The site is surrounded by wooded and agricultural properties to the northwest, residential properties to the south and southwest, and residential and wooded properties to the east. The Phase II landfill is located east of the closed Phase I landfill and northeast of the active Phase III landfill. The property also includes an active Type I compost facility located to the east of the Phase I landfill and south of the Phase II landfill. 1.2 Compliance Monitoring History The original monitoring network consisted of one upgradient well (MW-13) and five downgradient wells (II-1, II-2, II-3, II-4, and II-5). An additional upgradient well (MW-14) and three additional downgradient wells (II-6, 11-7, and II-8) were installed in 1995. Assessment monitoring at the Phase II facility was initiated in 1997 due to groundwater exceedances of NC Appendix I constituents. The C&D waste unit began accepting waste over top of the closed Phase II MSW waste unit in 1998. Well II-713 was installed in December 2000. Four monitoring wells (II-9, II-10, II-11, and II-12) were installed in March 2005 as part of the Nature and Extent Study (NES). Well II-12 became part of the compliance network. 4 GOLDER August 19, 2019 1668421.105 In October 2006, the City submitted an Alternate Source Demonstration (ASD) to address NC Appendix I inorganic compounds detected in groundwater samples from the Phase II area. The ASD presented data to support that concentrations of barium, cadmium, cobalt, vanadium, and zinc detected at site monitoring wells are naturally occurring and was approved by the NC DEQ by letter on November 15, 2007. The Phase II facility is currently in corrective action due to above -standard concentrations of VOCs in groundwater. The Corrective Action Plan (CAP) was approved by the NC DEQ on June 24, 2008, which proposed phytoremediation and monitored natural attenuation (MNA) as the remedial strategy. Three sentinel monitoring wells (SMW-1, SMW-3, and SMW-4) were installed in June 2010 and the EBuffer® hybrid poplar trees were installed between March and November 2010. Well II-9 also serves as a sentinel well for the corrective action monitoring program. Monitoring well II-313 was installed in June 2011 to monitor groundwater quality downgradient of II-3, which has been impacted due to its close proximity to waste. The Phase II landfill's compliance monitoring network is currently comprised of 12 monitoring wells, which monitor the uppermost aquifer beneath the facility. Monitoring wells MW-13 and MW-14 are the upgradient wells for the Phase II landfill, with MW-13 being a shared upgradient well with the Phase I landfill. Wells II-1, II-2, II-3, II4A, II-5, II-6, II-7, II-713, II-8, and II-12 are downgradient compliance wells for the Phase II landfill. Well II-3B is sampled to monitor water quality downgradient of II-3. Groundwater samples are analyzed for the NC Appendix I list of constituents plus NC Appendix II 'detects' during the first semi-annual water quality monitoring event of each year and are analyzed for the NC Appendix II list of constituents during the second semi-annual water quality monitoring event of each year. Currently, there are not additional 'detects' to be analyzed during the first semi-annual water quality monitoring events of each year. The corrective action monitoring activities include semi-annual monitoring of the four sentinel wells (II-9, SMW-1, SMW-3, and SMW-4). Three compliance monitoring wells (II-1, II-7, II-7B) also serve as sentinel wells for the corrective action program. Groundwater samples from the sentinel wells are analyzed for the same parameters as the compliance monitoring wells. MNA parameters are collected semi-annually from upgradient well MW-13 and sentinel wells II-1, II-9, and SMW-3. The MNA parameters include chloride, nitrate, sulfate, sulfide, ethene, ethane, methane, total organic carbon (TOC), alkalinity, volatile fatty acids (VFAs). A Corrective Action Performance Evaluation Report (CAPER) is to be prepared and submitted to the NC DEQ every five years to evaluate MNA and the phytoremediation at the Phase II landfill. The next CAPER is to be submitted prior to the second semi-annual water quality monitoring event of 2022. The facility's monitoring network also includes five surface water sampling points, SW-1, SW-2, SW-3, SW-4, and SW-5. Surface water point SW-1 is the facility's upstream sampling point located along North Buffalo Creek, west of the facility, along Summit Avenue. Surface water point SW-2 is collected from a tributary to North Buffalo Creek that flows from south to north into the stream, just west and upstream of the facility. Surface water point SW-3 is located west of the facility, downstream of SW-1 and upstream of the confluence of North Buffalo Creek and the tributary from which SW-2 is sampled. Surface water points SW-4 and SW-5 are both located downstream of SW-1, SW-2, and SW-3 along North Buffalo Creek. Surface water point SW-5 is located within the facility's property, at the northern end of the Phase II landfill and SW-5 is located to the east of the facility, off Rankin Mill Road. Surface water points SW-1, SW-2, SW-3, and SW-4 are sampled in conjunction with the groundwater monitoring wells in accordance with the facility's permits and Water Quality Monitoring Plan for the Phase I, Phase II, and Phase III landfills. Surface water point SW-5 is only sampled in accordance for with the permit 41-03, which includes the Phase I and Phase II landfills, but does not include the Phase III landfill. 4GOLDER August 19, 2019 1668421.105 1.3 Hydrogeologic Setting The White Street Landfill is located within the Carolina Slate Belt of the Piedmont Physiographic Province of NC (NCGS, 1985). Generally, the Carolina Slate Belt consists of Late Proterozoic to Cambrian volcanic and greenschist-facies, metasedimentary rocks intruded by plutonic suites (Butler and Secor, 1991). The site geology is characterized by a regional -scale felsic intrusive complex, which consists mainly of white to gray, fine- to coarse -grained, massive to foliated metamorphosed granitic rock. The region is characterized by regional and small-scale Mesozoic diabase dikes. The uppermost groundwater beneath the facility is present in a shallow, unconfined aquifer comprised of saprolite and partially weathered rock (PWR). Groundwater occurs at depths of approximately 1 to 30 feet below ground surface. Depth to water measurements, obtained on April 8, 2019, are summarized in Table 1 and were used to prepare a groundwater surface contour map presented on Figure 1. As presented, the groundwater flow in the uppermost aquifer beneath the site is generally to the northwest toward North Buffalo Creek, which is located along the northwestern property boundary of the site. The groundwater surface contour map and interpreted flow directions are generally consistent with previously submitted groundwater contour maps and flow directions for this facility. Based on the April 2018 groundwater surface contour map, the hydraulic gradient in the shallow aquifer underlying the site, as measured along the conceptual flow paths shown on the contour map, was calculated to be approximately 0.02 feet/foot. Groundwater velocities were calculated using a hydraulic conductivity of 2.61 X 10-4 centimeters per second (cm/s), which is the average of the hydraulic conductivities calculated for the hydrogeologic units present at the facility's Phase II and Phase III landfills. This average is based on slug test data by BPA Environmental & Engineering Inc. (Phase II) and G.N. Richardson & Associates (Phase III). The estimated effective porosity of the shallow aquifer is expected to range from 0.20 (saprolite) to 0.09 (fractured rock). The effective porosity of saprolite was used in calculations to provide a conservative estimate of groundwater flow. Using the above values, the estimated rate of groundwater flow for the uppermost aquifer beneath the facility was calculated using the following modified Darcy equation: V9w = Ki/ne where V9w = average linear velocity (feet/year), K = hydraulic conductivity (feet/year), i = horizontal hydraulic gradient, and ne = effective porosity. The average estimated linear groundwater flow velocity under the waste management unit is approximately 326 feet/year toward the northwest, which is generally consistent with previous estimates (Table 2). The linear velocity equation above makes the simplified assumptions of a homogeneous and isotropic aquifer. Therefore, this equation represents a likely average value for the uppermost aquifer and does not account for heterogeneous and/or anisotropic conditions that may be present in the uppermost aquifer at the facility. 2.0 FIELD PROGRAM, MONITORING RESULTS, AND DISCUSSION Field activities conducted as part of the April 2019 sampling event are discussed in the following sections. y GOLDER August 19, 2019 2.1 Visual Inspection Program 1668421.105 In order to detect a potential release at the earliest possible time, the visual inspection program is used at the Phase II landfill by the sampling personnel. This program includes physical indicators such as potential water table mounding beneath the waste management unit, physical examination of any stresses in biological communities, visible signs of leachate migration (i.e., leachate seeps), unexplained changes in soil characteristics, and any other change to the environment due to the waste management unit. During the April 2019 event no physical indicators of a potential release were observed in the vicinity of the waste management areas by the sampling personnel. 2.2 Well Network and Groundwater Elevation Measurements The current compliance network of groundwater monitoring wells at the Phase II landfill consist of two upgradient background wells (MW-13 and MW-14), 10 downgradient compliance wells (II-1, II-2, II-3, II-4A, II-5, II-6, II-7, II-713, II-8, and II-12), one assessment well (II-3I3), and four sentinel wells (II-9, SMW-1, SMW-3, and SMW-4). Available monitoring well construction information for all site monitoring wells is summarized on Table 3, and the well locations are shown on Figure 1. The well locations were selected to yield groundwater samples representative of the conditions in the uppermost aquifer underlying the facility, and to monitor for potential releases from the landfill unit. Three upstream surface water monitoring points (SW-1, SW-2, and SW-3) and two downstream surface water monitoring points (SW-4 and SW-5) are also monitored. Depth -to -water measurements are recorded to the nearest 0.01 foot prior to initiating groundwater purging and sampling activities. The respective groundwater level elevations for this event are presented in Table 1. The historical water level data are also shown on this table. As presented, recent groundwater elevation data for the monitoring well network indicate that the hydraulic head level in the uppermost aquifer beneath the facility is fairly consistent, with temporal variation from the long-term average limited to approximately 5 - 20 feet (plus or minus) under normal conditions. The range in fluctuation appears to be greatest in the upgradient background wells, which are located in a groundwater recharge area. The range in fluctuation in the downgradient compliance wells, which are located near groundwater discharge areas, is less, presumably due to the stabilizing effect of the hydraulic discharge boundary. 2.3 April 2019 Monitoring Event Personnel from Golder visited the facility from April 8 - 15, 2019, to purge and sample monitoring wells and to sample surface water monitoring points. Monitoring wells were purged and sampled using the dedicated pumps at the facility following low -flow micropurge procedures. Measurements of temperature, pH, specific conductivity, turbidity, dissolved oxygen, and oxidation reduction potential were recorded on approximately 5-minute intervals, depending on the purge rate. In general, the purge rate for each well was matched to the yield of the monitoring well, as determined by continuously monitoring the depth to the water, up to a maximum purge rate of 200 milliliters per minute. Purging was continued until stabilization was indicated by the water quality parameters. Prior to sampling, the laboratory -supplied sample containers were prepared. Each sample container was labeled with the sample identification number, sampling personnel, date and time of sample collection, project name and number, and requested chemical analyses. The required groundwater samples were collected directly from the dedicated bladder pump's discharge lines or disposable bailer into the labeled, laboratory -supplied, pre -preserved sample containers after well stabilization 4 GOLDER August 19, 2019 1668421.105 was completed based on the monitored water quality parameters. After collection, the samples were placed in a cooler on ice, under chain -of -custody control. Copies of the sampling logs are presented in Appendix A. Included in each log is a description of the sampling equipment, sampling method and location, field observations, and water quality measurements. The surface water samples were collected directly from the stream, by lowering the sample containers into the stream flow with the opening facing downstream from the current flow, taking care to prevent the overflow of the sample containers and to minimize sample -induced turbidity. However, due to access limitations, SW-3 was collected by lowering peristaltic tubing into the stream from a bridge and then filling the sample containers directly from pumping through the tubing. Measurements of temperature, pH, specific conductivity, turbidity, dissolved oxygen, and oxygen reduction potential were measured directly from the stream and recorded during the collection of the surface water samples. After collection, the surface water samples were placed in a cooler on ice, under chain -of -custody control. Copies of the sampling logs are presented in Appendix A. Included in each log is a description of the sampling equipment, sampling location, sampling method, field observations, and water quality measurements. 2.4 Laboratory Analysis Program The April 2019 groundwater and surface water samples were submitted to Environmental Conservation Laboratories, Inc. (ENCO) of Cary, NC under chain -of -custody control for analysis. Groundwater and surface water samples were analyzed for NC Appendix I list of constituents. Sentinel wells II-1, II-9, and SMW-3 were also analyzed for approved MNA parameters. Surface water and groundwater samples were also analyzed for 1,4-dioxane per the May 29, 2018, memorandum from the NC DEQ. The samples were received at the laboratory in good condition and were properly preserved. 3.0 LABORATORY AND FIELD QA/QC A duplicate sample was collected at Phase II well II-4A by Golder personnel as part of the April 2019 sampling event. ENCO analyzed the duplicate sample for the NC Appendix I list of constituents. A laboratory -prepared trip blank accompanied the volatile sample containers to and from the laboratory. ENCO analyzed the trip blank for NC Appendix I VOCs. Reviews of the laboratory data were performed by Golder personnel and are included in Appendix B. The same constituents were detected in the duplicate sample and the sample from 114A. Further, the concentrations from the duplicate sample and the sample from II-4A were generally similar. The results do not identify any irregularities related to laboratory analyses. There were no detections of NC Appendix I constituents in the laboratory method blanks and therefore no data qualification was necessary. 4.0 DATA EVALUATION Analytical results and field parameters for the April 2019 groundwater samples are summarized in Tables 4 and 5 with available historical data. Analytical results and field parameters for the April 2019 surface water samples are summarized in Tables 6 and 7 with available historical data. The laboratory certificate -of -analysis, chain -of - custody form and laboratory data review for the sampling event are included in Appendix B. The results of the data evaluations are presented in the following sections. 4GOLDER August 19, 2019 1668421.105 4.1 North Carolina Groundwater and Surface Water Quality Standard Comparisons Compliance monitoring analytical results for the April 2019 groundwater and surface water samples are compared to applicable water quality standards below in Section 4.1.1. 4.1.1 Compliance Monitoring During the April 2019 event, cobalt at downgradient compliance wells II-1 and II-6 were detected at concentrations above their respective Practical Quantitation Limits (PQLs) and NC 2L Interim Maximum Allowable Concentrations (IMACs). Cobalt and vanadium were also detected at estimated concentrations below their respective PQLs, but above their IMACs in the samples from one or more downgradient compliance wells during this event; vanadium was also detected at upgradient well MW-13 above the IMAC at an estimated concentration. Per 15A NCAC 02L .0202 (b)(1), "where the standard (i.e., the NC 2L Standard) for a substance is less than the PQL, the detection of that substance at or above the PQL constitutes a violation of the standard." The groundwater standards for cobalt and vanadium are 1 micrograms per liter (ug/L) and 0.3 ug/L, respectively. The PQL for both cobalt and vanadium is 10 ug/L. Further, historical concentrations of cobalt and vanadium are similar at upgradient and downgradient wells, which support that the constituents are naturally occurring. Also, an Alternate Source Demonstration submitted on October 1, 2006, along with an Addendum submitted on September 20, 2007, was approved by the NC DEQ on November 15, 2007, and concluded that metals including barium, cadmium, cobalt, vanadium, and zinc were naturally occurring. During this event, the following Appendix I VOCs were detected at concentrations above their respective PQLs and groundwater standards in samples from compliance monitoring wells: 1,4-dichlorobenzene at II-1 and vinyl chloride at II-2. Detected constituents and concentrations are generally consistent with historical data. The constituent 1,4-dioxane was detected above the PQL and NC 2L Standard in the samples from II-1, II-4A, II-6, and II-8 during this event. It is noted that 1,4-dioxane is not required by permit or regulation as part of the compliance monitoring program. No NC Appendix I constituents were reported above their respective PQLs and applicable surface water standards during the April 2019 event. Copper was reported at estimated concentrations below the PQL, but above the Acute Standard in the samples from upstream monitoring points SW-2 and SW-3 and downstream monitoring points SW-4 and SW-5 and at an estimated concentration below the PQL but above the Chronic Standard in the sample from upstream monitoring point SW-1. Lead was reported at an estimated concentration below the PQL, but above the Chronic Standard in the sample from upstream monitoring point SW-1. Because the concentrations are below their respective PQLs and based on similar concentrations at upstream and downstream samples, the exceedances do not appear to be related to landfill activities from the facility and no further action is warranted. 4.1.2 Corrective Action Monitoring During this event, cadmium was detected in the sample from sentinel well SMW-1 at a concentration above the PQL and NC 2L Standard, as it has been during previous events. Cobalt and vanadium were detected at estimated concentrations below their respective PQLs but above their respective IMACs in one or more downgradient wells during this event; concentrations are generally consistent with historical data and no further action is warranted for these estimated concentrations. An Alternate Source Demonstration submitted on October 1, 2006, along with an Addendum submitted on September 20, 2007, was approved by the NC DEQ on GOLDER August 19, 2019 1668421.105 November 15, 2007, and concluded that metals including barium, cadmium, cobalt, vanadium, and zinc were naturally occurring. Vinyl chloride was detected above the PQL and NC2L Standard in the sample from SMW-3 during the event. No other Appendix I VOCs were detected at concentrations above their respective PQLs and groundwater standards during this event at sentinel wells. The constituent 1,4-dioxane was detected at a concentration above the PQL and NC 2L Standard in samples from assessment well II-3B and sentinel wells SMW-1 and SMW-4 during the April 2019 event. As stated above, this constituent is not required as part of the facility's monitoring program. 5.0 CORRECTIVE ACTION PERFORMANCE MONITORING The most recent CAPER was submitted to the NC DEQ on December 28, 2017, and was subsequently approved on January 5, 2018. The CAPER summarized the MNA and phytoremediation remedy results for the previous five-year period (April 2012 through April 2017). Analysis of geochemical or indicator parameters (including chloride, dissolved oxygen, ethane, ethene, methane, nitrate, oxygen reduction potential, total alkalinity, total organic carbon, sulfate, sulfide, and volatile fatty acids) was performed on samples from the "performance monitoring" of MNA monitoring wells. To assess the possibility that chlorinated (aromatic and aliphatic) VOCs are naturally attenuating at the site, geochemical parameters have been evaluated based on criteria presented in the Technical Protocol for Evaluating Natural Attenuation of Chlorinated Solvents in Ground Water, Table 2.3 (EPA, 1998). The EPA screening results are summarized in Appendix C of this report. The screening results present the scoring criteria in the Protocol, as calculated for downgradient / sentinel monitoring wells II-1, II-9, and SMW-3 for the April 2019 event. Based on the EPA's screening protocol, monitoring wells II-1 and II-9 received a score of 9, which indicates limited evidence for anaerobic biodegradation of chlorinated organics. Monitoring well SMW-3 received a score of 14 indicating limited evidence for anaerobic biodegradation of chlorinated organics (EPA, 1999). The natural attenuation screening protocol forms are included as Figures C-1, C-2, and C-3 in Appendix C. Based on the results of the screening protocol, there is evidence that natural attenuation is occurring at the site; therefore, modeling was performed on the April 2019 data to simulate remediation by natural attenuation using a screening model called BIOCHLOR (EPA, 2000). The flow paths between II-9 and SMW-3, II-2 and SWM-1, and II-3 and II-3B were selected for modeling due to the alignment of monitoring wells with groundwater flow downgradient of the Phase II waste unit, essentially following the contaminant plume. The models assume that waste was first placed in the Phase II Landfill in 1995. The BIOCHLOR modeling program generates plots that compare concentrations of tetrachloroethene, trichloroethene, dichloroethene, vinyl chloride, and ethene over time with no degradation, to concentrations where sequential 1 st order biological attenuation is occurring. Each data input page and the associated constituent plots are provided as Appendix C. Figures C-4 and C-5 in Appendix C show the BIOCHLOR modeling results of flow path II-2 and SMW-1 for April 2019. Tetrachloroethene, trichloroethene, dichloroethene, and vinyl chloride concentrations for II-2 plotted below their respective 1st order decay line during the event. Tetrachloroethene, trichloroethene, dichloroethene, and vinyl chloride were not detected in the sample from SMW-1. Ethene was not analyzed for samples from II-2 and SMW-1 during the event. The results from these plots indicate that natural attenuation is occurring at the site and that as long as conditions at the site continue to be strongly anaerobic, biodegradation will likely continue. y GOLDER August 19, 2019 1668421.105 Figures C-6 and C-7 in Appendix C show the BIOCHLOR modeling results of flow path II-3 and II-313 for April 2019. Tetrachloroethene, trichloroethene, and vinyl chloride were not detected in samples from either well during the event. The dichloroethene concentration for II-3 plotted below the 1st order decay line during the event. Dichloroethene was not detected in the sample from II-3B. Ethene was not analyzed for samples from II-3 and II-313 during the event. The results from these plots indicate that natural attenuation is occurring at the site and that as long as conditions at the site continue to be strongly anaerobic, biodegradation will likely continue. Figures C-8 and C-9 in Appendix C show the BIOCHLOR modeling results of flow path II-9 and SMW-3 for April 2019. Tetrachloroethene, trichloroethene, and ethene were not detected in samples from well II-9 and SMW-3 during the event. The dichloroethene concentration for II-9 plots below the first order decay line, but the concentration for SMW-3 plots between the no degradation line and the first order decay line. The vinyl chloride concentration for SMW-3 plots below the 1st order decay line during the event. The results from these plots indicate that natural attenuation is occurring at the site and that as long as conditions at the site continue to be strongly anaerobic, biodegradation will likely continue. According to the current data, it is likely that the plume size is relatively stable, as indicated by the BIOCHLOR model. The cis-1,2 dichloroethene variety is the prominent form of dichloroethene indicating that the detections represent daughter products of trichloroethene. In summary, the results of the BIOCHLOR modeling conducted for April 2019 at the facility indicate that biodegradation is occurring downgradient of the Phase II waste unit. 6.0 CONCLUSIONS Based on these results, the City of Greensboro will continue groundwater monitoring the Phase II landfill in accordance with the requirements of the Assessment Monitoring and Corrective Action Programs, as outlined in Title 15A NCAC 13B .1635 and .1637. Also, based on the results, the City of Greensboro will continue the implementation of groundwater corrective action in accordance with the approved Corrective Action Plan. The next semi-annual monitoring event is tentatively scheduled for October 2019. 7.0 REFERENCES Butler, J. Robert and Secor, Donald T., Jr., 1991, The Central Piedmont, in Horton, J. W., Jr., and Zullo,V.A., eds., The Geology of the Carolinas: The University of Tennessee Press, p. 59 78. NCGS (North Carolina Geologic Survey), 1985, Geologic Map of North Carolina. S&ME, Inc., January 2017, White Street Landfill — Phase II, Permit No. 41-03, Assessment Monitoring September 2016. 4GOLDER 8 August 19, 2019 Signature Page Golder Associates NC, Inc. David "Dusty" Y. Reedy II, PG Senior Hydrogeologist Rachel P. Kirkman, PG Associate and Senior Consultant Engineering Lic. No. C-2862/Geology Lic. No. C-399 1668421.105 Golder Associates NC, Inc. is a licensed user of the Golder trademark, and an associated operating entity. Golder and the G logo are trademarks of Golder Associates Corporation. gAprojects\city of greensboro\1668421 - greensboro\phase 105 -1st sa wqm 2019\200 deliverables\252 final issued\phase ii\1668421.105-001-r-rev0_phase ii.docx 4 GOLDER Tables August2019 1668421.105 TABLE 1 Summary of Historical Groundwater Elevation Data White Street Landfill - Phase II, Permit No. 41-03 Greensboro, North Carolina Well IDS MW-13 MW-14 11.1 II-2 II.3 II-313 II.4A 11.5 II.6 11.7 II.713 11.8 11.9 II.12 SMW-1 SMW-3 SMW-4 TOC Elevation 741.24 786.65 702.78 704.59 699.37 694.49 707.25 722.01 704.39 697.75 700.86 717.76 696.78 699.80 692.87 694.16 697.43 (ft AMSL) Date GW Elev i DTW GW Elev i DTW GW Elev i DTW GW Elev i DTW GW Elev i DTW GW Elev i DTW GW Elev i DTW GW Elev i DTW GW Elev i DTW GW Elev i DTW GW Elev i DTW GW Elev i DTW GW Elev i DTW GW Elev i DTW GW Elev i DTW GW Elev i DTW GW Elev i DTW 10/14/98 718.61 i 22.69 738.95 i 26.35 749.56 i 19.02 743.48 i 21.17 671.9 i 16.15 NI NI NI NI 705.51 i 8.80 683.11 i 15.36 668.22 i 15.86 696.94 i 10.15 NI NI NI NI 05/25/99 722.11 i 19.19 741.60 i 23.70 675.66 i 16.68 670.01 i 20.04 672.46 i 15.59 NI i NI NI i NI 707.57 i 6.74 688.64 i 9.83 670.21 i 13.87 697.02 i 10.07 NI NI NI NI - 09/22/99 721.32 19.98 738.15 27.15 675.19 17.15 670.19 19.86 672.50 € 15.55 NI [ NI NI [ NI 707.59 6.72 686.67 11.80 670.41 i 13.67 697.40 9.69 NI NI NI NI - 03/27/00 722.49 i 18.81 742.16 i 23.14 677.07 15.27 671.51 18.54 672.63 € 15.42 NI € NI NI € NI 708.31 6.00 689.25 i 9.22 670.66 i 13.42 697.69 i 9.40 NI NI NI NI - - 09/13/00 722.37 i 18.93 741.46 i 23.84 675.85 i 16.49 6.70.67 i 19.38 672.95 € 15.10 NI € NI NI € NI 707.49 i 6.82 687.37 i 11.10 670.36 i 13.72 697.39 i 9.70 NI NI NI NI - 03/13/01 721.80 i 19.50 742.16 i 23.14 676.73 i 15.61 671.13 i 18.92 673.10 € 14.95 NI € NI NI € NI 708.09 i 6.22 688.44 i 10.03 670.57 i 13.51 697.37 i 9.72 NI NI NI NI - - 09/13/01 720.98 i 20.32 739.35 i 25.95 675.60 i 16.74 669.64 i 20.41 672.12 € 15.93 NI NI NI NI 706.96 i 7.35 684.39 i 14.09 669.83 i 14.25 669.61 i 17.60 697.35 i 9.74 NI NI NI NI - - 03/08/02 719.08 22.22 739.11 i 26.19 677.70 14.64 670.10 19.95 672.27 € 15.78 NI NI NI NI 707.68 6.63 685.95 12.52 670.25 13.83 670.16 17.05 697.07 10.02 NI NI NI NI - 09/18/02 722.10 i 19.20 736.11 29.19 675.66 i 16.68 672.13 i 17.92 671.50 € 16.55 NI NI NI NI 707.14 7.17 685.65 i 12.82 669.54 14.54 669.44 17.77 697.45 i 9.64 NI NI NI NI - - 04/15/03 724.59 i 16.71 749.72 i 15.58 680.23 i 12.11 672.11 i 17.94 673.43 € 14.62 NI NI NI NI 708.16 i 6.15 690.21 i 8.26 672.70 i 11.38 670.97 i 16.24 697.51 i 9.58 NI NI NI NI - - 10/15/03 722.82 i 18.48 746.83 i 18.47 677.58 i 14.76 671.18 i 18.87 674.61 € 13.44 NI NI NI NI 707.53 i 6.78 687.39 i 11.08 670.60 i 13.48 670.34 i 16.87 697.88 i 9.21 NI NI NI NI - - 03/24/04 722.42 i 18.88 746.79 i 18.51 676.86 i 15.48 670.87 i 19.18 674.54 € 13.51 NI NI NI NI 708.04 i 6.27 687.15 i 11.32 670.27 i 13.81 670.13 i 17.08 697.28 i 9.81 NI NI NI NI - 09/22/04 722.56 18.74 742.04 23.26 676.70 15.64 670.44 19.61 672.43 € 15.62 NI NI NI NI 707.45 6.86 687.20 11.27 670.42 i 13.66 670.14 i 17.07 697.45 9.64 NI NI NI NI - 05/09/05 722.14 19.16 746.03 i 19.27 676.38 i 15.96 670.72 19.33 674.79 € 13.26 NI NI NI NI 707.03 i 7.28 686.65 i 11.82 670.15 i 13.93 669.9 i 17.31 697.79 i 9.30 686.5 i 10.51 691.09 i 8.71 - 10/11/05 719.72 i 21.58 738.24 i 27.06 675.00 i 17.34 668.89 i 21.16 671.65 € 16.40 NI € NI NI € NI 707.16 i 7.15 683.38 i 15.09 669.35 i 14.73 668.88 i 18.33 697.45 i 9.64 - € -- -- -- - - 04/24/06 720.25 i 21.05 740.68 i 24.62 675.67 i 16.67 669.77 i 20.28 671.97 € 16.08 NI € NI NI € NI 707.83 i 6.48 686.5 i 11.97 669.61 i 14.47 669.46 i 17.75 697.44 i 9.65- 10/19/06 721.69 i 19.61 737.16 i 28.14 675.49 i 16.85 669.85 i 20.20 670.91 € 17.14 NI € NI NI € NI 706.71 i 7.60 685.21 i 13.26 669.85 i 14.23 669.61 i 17.60 697.45 i 9.64- 04/12/07 721.61 19.63 764.37 22.28 688.87 13.91 685.82 18.77 683.22 [ 16.15 NI [ NI NI [ NI 714.77 7.24 694.20 10.19 685.20 12.55 685.04 15.82 708.44 i 9.32 - 09/26/07 717.41 23.83 757.27 29.38 685.00 i 17.78 682.82 21.77 682.16 € 17.21 NI € NI NI € NI 712.51 9.50 689.06 i 15.33 682.24 15.51 682.04 18.82 707.61 10.15 - - 04/29/08 722.96 i 18.28 759.74 i 26.91 691.81 i 10.97 685.65 i 18.94 683.80 € 15.57 NI € NI NI € NI 716.34 i 5.67 696.92 i 7.47 687.78 i 9.97 684.84 i 16.02 708.45 i 9.31 i 691.93 i 7.87 - - 12/03/08 NI NI NI NI - - - - - 04/17/09 722.87 i 18.37 759.02 i 27.63 688.68 i 14.10 685.68 i 18.91 683.71 15.66 NI € NI NI € NI 716.10 i 5.91 695.43 i 8.96 684.61 i 13.14 683.83 i 17.03 708.50 i 9.26 - 691.11 i 8.69 - 04/28/10 721.70 19.54 762.67 23.98 686.53 16.25 684.56 20.03 682.37 17.00 NI NI NI NI 714.49 7.52 692.48 11.91 683.86 13.89 681.55 19.31 708.27 i 9.49 689.55 10.25 08/03/10 -- i -- 762.73 i 23.92 685.82 16.96 684.30 i 20.29 -- i -- NI € NI NI € NI -- -- -- -- 683.30 i 14.45 683.05 i 17.81 -- -- 685.08 i 11.70 -- -- 681.75 i 11.12 683.83 i 10.33 688.76 i 8.67 10/11/10 721.13 i 20.11 757.98 i 28.67 685.92 i 16.86 683.97 i 20.62 682.04 i 17.33 NI NI NI NI 713.80 i 8.21 691.86 i 12.53 683.59 i 14.16 683.29 i 17.57 708.27 i 9.49 -- -- 688.91 i 10.89 681.70 i 11.17 683.85 i 10.31 688.87 i 8.56 05/09/11 722.33 i 18.91 759.52 i 27.13 687.65 i 15.13 685.22 i 19.37 682.45 i 16.92 € NI € NI 715.10 i 6.91 693.52 i 10.87 684.06 i 13.69 683.82 i 17.04 708.57 i 9.19 689.74 i 10.06 10/10/11 719.26 i 21.98 754.73 i 31.92 685.92 i 16.86 684.36 i 20.23 681.86 € 17.51 680.33 € 14.16 NI NI 714.83 i 7.18 691.29 i 13.10 683.73 i 14.02 683.59 i 17.27 708.19 i 9.57 684.76 i 12.02 689.36 i 10.44 682.30 i 10.57 683.80 i 10.36 688.85 i 8.58 04/18/12 721.34 i 19.90 758.49 28.16 687.78 15.00 684.95 19.64 682.07 € 17.30 -- NI NI 714.68 7.33 693.47 i 10.92 684.01 13.74 683.70 17.16 708.38 9.38 686.03 10.75 689.89 9.91 682.99 9.88 684.23 9.93 690.22 i 7.21 10/24/12 719.13 i 22.11 758.49 i 28.16 686.03 i 16.75 684.19 i 20.40 681.56 € 17.81 680.33 € 14.16 NI NI 714.25 i 7.76 691.75 i 12.64 683.46 i 14.29 683.26 i 17.60 708.06 i 9.70 684.76 i 12.02 688.57 11.23 682.30 i 10.57 683.80 i 10.36 688.85 i 8.58 04/30/13 721.96 i 19.28 757.43 i 29.22 688.40 i 14.38 685.82 i 18.77 681.48 € 17.89 681.14 € 13.35 -- 715.45 i 6.56 695.50 i 8.89 685.48 i 12.27 684.51 i 16.35 708.65 i 9.11 687.18 i 9.60 690.91 i 8.89 686.58 i 6.29 684.75 i 9.41 691.61 i 5.82 09/12/13 721.66 i 19.58 758.54 i 28.11 686.44 i 16.34 684.83 i 19.76 682.06 € 17.31 680.57 i 13.92 695.29 i 11.96 713.70 i 8.31 691.87 i 12.52 683.88 i 13.87 683.42 i 17.44 708.50 i 9.26 685.57 i 11.21 688.14 i 11.66 682.23 i 10.64 683.67 i 10.49 688.50 i 8.93 04/23/14 723.00 i 18.24 761.60 i 25.05 689.63 i 13.15 686.51 i 18.08 683.17 € 16.20 681.44 i 13.05 699.98 i 7.27 715.64 i 6.37 695.43 i 8.96 684.59 i 13.16 684.08 i 16.78 709.05 i 8.71 687.80 i 8.98 690.51 i 9.29 685.60 i 7.27 684.72 i 9.44 691.72 i 5.71 10/03/14 717.90 23.34 755.73 30.92 685.67 i 17.11 683.70 20.89 681.26 € 18.11 679.98 € 14.51 690.94 16.31 711.57 10.44 689.30 15.09 682.64 15.11 683.42 i 17.44 707.75 10.01 683.76 13.02 687.04 12.76 681.46 11.41 682.42 i 11.74 684.80 12.63 04/14/15 720.64 20.60 756.79 i 29.86 688.38 i 14.40 684.97 19.62 683.23 € 16.14 680.83 € 13.66 695.82 11.43 715.58 i 6.43 693.89 i 10.50 684.04 13.71 683.63 i 17.23 708.57 9.19 686.13 i 10.65 688.92 10.88 684.52 8.35 684.38 i 9.78 690.08 i 7.35 10/05/15 723.23 i 18.01 -- -- 687.14 i 15.64 684.80 i 19.79 682.61 € 16.76 681.11 € 13.38 690.94 i 16.31 716.01 i 6.00 691.91 i 12.48 683.80 i 13.95 683.35 i 17.51 708.24 i 9.52 685.62 i 11.16 688.98 i 10.82 685.98 i 6.89 684.19 i 9.97 689.43 i 8.00 04/19/16 721.94 i 19.30 759.55 i 27.10 687.44 i 15.34 685.77 i 18.82 683.21 € 16.16 680.97 € 13.52 698.83 i 8.42 715.49 i 6.52 693.70 i 10.69 684.37 i 13.38 683.66 i 17.20 708.33 i 9.43 686.83 i 9.95 689.03 i 10.77 -- 09/26/16 721.03 i 20.21 686.88 i 15.90 684.54 i 20.05 682.70 € 16.67 680.36 € 14.13 692.57 i 14.68 715.53 i 6.48 690.15 i 14.24 683.66 i 14.09 683.61 i 17.25 708.21 i 9.55 685.10 i 11.68 687.81 i 11.99 681.41 i 11.46 683.96 i 10.20 686.38 i 11.05 03/21/17 686.40 16.38 685.21 19.38 695.11 i 12.14 -- -- 692.10 12.29 683.43 14.32 -- - - - 04/25/17 722.07 19.17 <757.30 i >TOP 697.36 i 5.42 687.31 17.28 684.33 € 15.04 683.67 € 10.82 696.42 10.83 716.84 5.17 699.09 i 5.30 689.44 8.31 687.18 i 13.68 708.93 i 8.83 689.14 7.64 693.52 6.28 687.75 i 5.12 688.56 i 5.60 693.84 3.59 10/16/17 720.11 i 21.13 <757.06 i >29.60 685.44 i 17.34 683.87 i 20.72 682.03 € 17.34 680.13 € 14.36 691.91 i 15.34 715.07 i 6.94 689.70 i 14.69 682.49 i 15.26 682.34 i 18.52 708.10 i 9.66 684.44 i 12.34 687.72 i 12.08 681.02 i 11.85 683.13 i 11.03 686.30 i 11.13 04/16/18 722.80 i 18.44 755.05 i 31.60 689.77 i 13.01 686.14 i 18.45 683.76 € 15.61 681.81 € 12.68 696.74 i 10.51 716.60 i 5.41 688.81 i 15.58 685.69 i 12.06 685.18 i 15.68 708.85 i 8.91 687.64 i 9.14 691.56 i 8.24 687.60 i 5.27 685.64 i 8.52 692.31 i 5.12 10/16/18 723.27 i 17.97 754.04 i 32.61 687.43 i 15.35 685.50 i 19.09 683.74 i 15.63 681.25 € 13.24 692.94 i 14.31 715.82 i 6.19 694.88 i 9.51 683.96 i 13.79 683.48 i 17.38 708.55 i 9.21 686.74 i 10.04 690.16 i 9.64 685.38 i 7.49 684.77 i 9.39 691.62 i 5.81 04/08/19 723.66 17.58 763.10 i 23.55 688.59 14.19 686.68 17.91 684.88 14.49 681.92 12.57 701.04 6.21 716.39 5.62 694.83 9.56 683.94 13.81 683.86 17 709.35 8.41 688.24 i 8.54 689.83 9.97 686.89 5.98 684.95 9.21 691.66 5.77 MEAN 721.50 i 19.76 750.90 i 25.94 684.95 i 15.42 681.20 i 19.531 678.49 i 16.07 681.06 i 13.43 695.27 11.98 711.82 6.92 690.35 i 11.59 678.58 i 13.64 679.38 i 17.19 703.74 9.48 686.18 i 10.61 689.74 i 10.06 683.97 8.90 684.39 i 9.77 689.64 7.79 MAXIMUM 724.59 i 23.83 764.37 i 32.61 749.56 i 19.02 743.48 i 21.77 684.88 i 18.11 683.67 i 14.51 701.04 i 16.31 716.84 i 10.44 699.09 i 15.58 689.44 i 15.86 687.18 i 19.31 709.35 i 10.15 689.14 i 13.02 693.52 i 12.76 687.75 i 11.85 688.56 i 11.74 693.84 i 12.63 MINIMUM 717.41 i 16.71 736.11 i 15.58 675.00 i 5.42 668.89 i 17.28 670.91 i 13.26 679.98 i 10.82 690.94 i 6.21 705.51 i 5.17 683.11 i 5.30 668.22 i 8.31 668.88 i 13.68 696.94 i 8.41 683.76 i 7.64 687.04 i 6.28 681.02 i 5.12 682.42 i 5.60 684.80 i 3.59 Notes: 1. ft AMSL = feet above mean sea level. 2. -- = not measured or no data 3. TOC = top of casing 4. NI = not installed 5. MW = monitoring well, GW = groundwater, DTW = depth to water 6. TOC and Water Elevation Data for dates prior to April 2017 from historical S&ME, Inc. Ground and Surface Water Monitoring Reports. 7. Well TOC survey conducted 2013-2014 by S&ME, Inc. for more accurate elevations. .,,> GOL❑ER 1 of 1 August2019 TABLE 2 Summary of Estimated Horizontal Flow Velocities White Street Landfill - Phase II, Permit No. 41-03 Greensboro, North Carolina 1668421.105 April 2019 Gradient Gradient Flow Gradient Segment Horizontal Effective Porosity Hydraulic Velocity Calculation Direction Segment Length Elevations Gradient (ne) Conductivity (VgW, feet/year) Segment (feet) (feet) (i, feet) (K, cm/sec) is West -Northwest 2766 ---------690---------- 0.0253 0.02 2.61E-04 342 i, North -Northwest 3047 --------- 660---------- 0.0230 0.02 2.61 E-04 310 Average i Average VFW 0.0241 326 Notes: 1. Horizontal velocities based on the modified Darcy equation VgW = Ki/ne. 2. Values for K were based on the geometric mean of slug test values from all site monitoring wells as prepared by BPA Environmental & Engineering 3. The effective porosity for saprolite was used in velocity calculations. 4. cm/sec = centimeters per second GOLDER 10fl August 2019 TABLE 3 Summary of Well Construction Information White Street Landfill - Phase II, Permit No. 41-03 Greensboro, North Carolina 1668421.105 Monitoring Well Identification Northing Easting Date of Construction Top -of -Casing Elevation (ft AMSL) Well Depth (feet) Well Diameter (inches) Screened Interval (ft bgs) Geology of Screened Interval Well Status II-1 863027.3314 1787495.6766 07/14/89 702.78 26.6 2 20.0 30.0 Water Table Aquifer Compliance / Sentinel Well II-2 864184.3539 1788403.6364 07/14/89 704.59 33.4 2 24.0 34.0 Water Table Aquifer Compliance Well II-3 864245.1544 1789031.9589 07/14/89 699.37 32.6 2 23.0 33.0 Water Table Aquifer Compliance Well II-313 864365.2295 1789116.1385 06/03/11 694.49 25.0 2 10.0 25.0 Water Table Aquifer NES Well II4A 863581.7689 1789359.9497 08/13/13 707.25 25.0 2 10.0 25.0 Water Table Aquifer Compliance Well II-5 863032.9389 1789345.4003 07/14/89 722.01 16.0 2 19.0 29.0 Water Table Aquifer Compliance Well II-6 862513.6388 1787002.3258 07/14/89 704.39 20.7 2 7.5 20.0 Water Table Aquifer Compliance Well II-7 863701.8380 1787823.6893 07/14/89 697.75 27.7 2 12.5 27.5 Water Table Aquifer Compliance / Sentinel Well II-713 863703.7309 1787839.3286 12/11/00 700.86 103.5 2 90.7 103.5 Water Table Aquifer Compliance / Sentinel Well II-8 861207.1750 1786938.1186 07/14/89 717.76 35.0 2 20.0 35.0 Water Table Aquifer Compliance Well II-9 863924.1830 1787952.6658 03/21/05 696.78 25.0 2 7.8 21.8 Water Table Aquifer Sentinel Well II-12 862084.6402 1786802.0936 03/22/05 699.80 22.8 2 5.7 19.7 Water Table Aquifer Compliance Well SMW-1 864374.8279 1788376.0728 07/08/10 692.87 18.4 2 8.4 18.4 Water Table Aquifer Sentinel Well SMW-3 863983.9035 1787857.4169 07/08/10 694.16 25.0 2 10.0 25.0 Water Table Aquifer Sentinel Well SMW-4 862512.4617 1786835.2747 07/08/10 697.43 23.9 2 8.9 23.9 Water Table Aquifer Sentinel Well MW-13 858763.9106 1783188.5206 07/14/89 741.24 33.8 2 20.0 35.0 Water Table Aquifer Background Well MW-14 859453.8757 1788632.2264 07/14/89 786.65 34.4 2 20.0 35.0 Water Table Aquifer Background Well Notes: 1. ft AMSL= feet above mean sea level 2. ft bgs = feet below ground surface 5. Unless otherwise noted, well construction survey information, Water Quality Monitoring Reports and Water Quality Monitoring Plans provided by Survey Solutions S&ME. 4 GOLDER 10fl August 2019 TABLE4 Smmary of Grondwater Monitoring Resits Detected Constitents White Street Landfill - Phase 11, Permit No. 41-03 Greensboro, North Carolina Method Practical SWS Assessment Reporting Sample Upgradient Monitoring Wells Compliance Downgraient Monitoring Wells Monitoring Sentinel Monitoring Wells Detected Monitoring Constitent Units Date Detection Quantitation Reporting Well Limit Limit Limit Blanks MW-13 MW-14 II-1 II-2 113 114A 115 II-6 II-7 II-7B 11-8 II-12 II-3B II-9 SMW-1 SMW3 SMW4 Antimony ug/L 03/01/99 - -- 30 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND IMAC = 1 ug/L ug/L 09/01/99 -- -- 30 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND EPA MCL=6 ug/L ug/L 03/01/00 -- -- 30 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 30 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 30 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 30 ND ND ND ND ND - ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 30 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 30 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 30 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 30 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 30 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 30 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 05/01/05 -- -- 30 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 30 ND ND 0.54 ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/01/06 -- -- -- -- -- -- __ ug/L 10/01/06 -- -- 30 ND ND ND ND ND - ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/12/07 -- -- - ND ND ND ND ND - ND ND ND ND ND ND ug/L 09/26/07 -- -- -- ND ND ND ND ND -- ND -- ND ND ND -- -- -- - -- -- ND ug/L 04/29/08 0.68 -- 6 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 12/01/08 0.68 -- 6 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 04/17/09 0.68 -- 6 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/16/09 0.073 -- 6 ND ND ND ND ND -- ND 0.211 J ND ND ND -- -- -- -- -- -- ND ug/L 04/28/10 0.22 -- 6 ND ND ND ND ND -- ND 0.242 J ND 0.248 J ND ND -- -- -- -- -- ND ug/L 08/02/10 0.22 -- 6 -- -- -- -- -- -- -- - -- -- -- -- -- -- ND ND ND ND ug/L 10/11/10 0.22 -- 6 ND ND 0.224 J ND ND -- ND 0.374 J ND ND ND ND -- -- ND ND ND ND ug/L 05/09/11 0.22 -- 6 ND ND 0.365 J ND ND - ND ND ND ND ND ND -- - -- - -- ND ug/L 10/12/11 0.22 -- 6 ND ND 0.276 J ND ND - ND 0.384 J ND ND ND ND ND ND ND ND ND ND ug/L 04/17/12 0.22 -- 6 ND ND 0.527 J ND 0.862 J - 0.232 J ND ND ND ND ND -- -- -- -- -- ND ug/L 10/25/12 0.22 -- 6 ND ND ND ND ND -- ND ND 0.716 J ND ND ND ND ND ND ND ND ND ug/L 05/02/13 0.22 -- 6 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/24/13 0.22 -- 6 ND ND ND ND ND ND ND 0.345 J ND ND ND ND ND ND ND ND ND ND ug/L 04/24/14 0.22 -- 6 ND ND ND ND ND - ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/06/14 0.22 -- 6 ND ND 0.296 J ND 0.293 J ND ND ND ND ND ND ND ND ND 0.316 J 0.296 J 0.532 J ND ug/L 04/14/15 0.22 -- 6 ND ND 0.331 J 0.614 J ND ND ND ND ND ND ND -- ND ND ND ND ND ND ug/L 10/07/15 0.22 -- 6 0.22 -- 0.418 J ND 0.344 J ND ND ND ND ND ND ND ND ND 0.456 J ND 2.43 J ND ug/L 04/20/16 0.22 -- 6 ND 0.22 ND ND 0.282 J ND 0.239 J ND ND ND ND ND ND ND ND ND 0.22 ND ug/L 09/26/16 0.22 -- 6 ND -- ND ND ND ND ND 0.244 J ND ND ND ND ND ND ND ND ND ND ug/L 04/25/17 0.37 -- 6 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 0.37 -- 6 ND -- ND ND ND ND ND 0.471 J ND ND ND ND ND ND ND ND ND ND ug/L 04/16/18 0.37 -- 6 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 1.85 5.00 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 04/12/19 1 1.85 0.50 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Arsenic ug/L 03/O1/99 -- -- 10 ND ND ND ND ND - ND ND ND ND ND ND -- ND -- - -- ND NC 2L = 10 ug/L ug/L 09/01/99 -- 10 ND ND ND ND ND - ND ND ND ND ND -- -- -- - -- -- ND EPA MCL = 10 ug/L ug/L 03/01/00 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND - -- -- ND ug/L 09/01/00 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND ug/L 03/01/01 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND - -- -- ND ug/L 09/01/01 -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- - -- -- ND ug/L 03/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND ND ug/L 09/01/02 -- -- 10 ND ND ND ND ND - ND ND ND ND ND ND ug/L 04/15/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND ug/L 03/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND ug/L O5/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- - -- - -- -- ND ug/L 04/01/06 -- -- -- - -- ug/L 10/01/06 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/26/07 -- -- -- ND 2.8 J ND ND ND -- ND -- ND ND 2.4 J -- -- -- -- -- -- ND ug/L 04/29/08 2.0 -- 10 2.4 J 2.9 J ND ND ND -- 2.2 J ND 3.1 J ND ND ND -- -- -- -- -- ND ug/L 12/01/08 2.8 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 04/17/09 2.8 -- 10 ND 3.1 B ND 3.8 B ND -- ND 3.3 B ND ND ND 4.9 B -- -- -- -- -- -- ug/L 10/16/09 2.8 -- 10 ND 3.81 J ND ND ND -- 3.4 J ND ND 3.95 J ND - -- -- -- - -- ND ug/L 04/28/10 2.8 -- 10 ND 4.6 J ND ND 4.79 J -- ND ND ND 5.22 J ND ND -- - -- - -- ND ug/L 08/02/10 2.8 - 10 -- - -- - -- -- -- 4.07 J ND ND ND ug/L 10/11/10 2.8 -- 10 ND ND ND ND ND -- ND 5.22 J ND ND ND ND -- -- ND ND ND ND ug/L O5/09/11 2.8 -- 10 ND 3.08 B ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/12/11 2.8 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND ND ND 4.29 J ND ND ND ug/L 04/17/12 2.8 -- 10 3.73 J 3.86 J 3.06 J ND ND -- 6.84 J ND ND 6.24 J 10.1 B ND -- - -- - -- - ug/L 10/25/12 2.8 - 10 ND 2.87 J ND ND ND -- 3.10 J 8.68 J 7.97 J 4.09 J ND 6.04 J 7.21 J 3.53 J 6.54 J ND ND -- ug/L O5/02/13 2.8 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/24/13 5.4 -- 10 ND ND ND 5.78 J ND ND ND ND ND ND ND ND ND ND 5.98 J ND ND ND ug/L 04/24/14 5.4 -- 10 ND 6.51 J ND ND ND - ND ND ND ND 7.05 J 5.40 ND ND ND ND ND ND ug/L 10/06/14 5.4 - 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/14/15 6.8 - 10 ND ND ND ND ND ND ND ND ND ND ND -- ND ND ND ND ND ND ug/L 10/07/15 6.8 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/16 6.8 -- 10 ND 6.80 11.6 ND ND ND ND ND ND ND ND ND ND ND ND ND 6.80 ND ug/L 09/26/16 6.8 -- 10 ND -- ND ND ND 9.78 J ND 9.30 J 7.45 J ND ND ND ND ND ND ND ND ND ug/L 04/25/17 6.8 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 6.8 - 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/16/18 6.8 - 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 7.6 10.0 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 1 04/12/19 1 7.6 1 10.0 ND ND I ND ND ND ND ND ND ND ND ND ND I ND I ND ND ND ND I ND 1668421.105 r> GOLFER 1 of 24 August 2019 TABLE4 Smmary of Grondwater Monitoring Resits Detected Constitents White Street Landfill - Phase 11, Permit No. 41-03 Greensboro, North Carolina Method Practical SWS Assessment Reporting Sample Upgradient Monitoring Wells Compliance Downgraient Monitoring Wells Monitoring Sentinel Monitoring Wells Detected Monitoring Constitent Units Date Detection Quantitation Reporting Well Limit Limit Limit Blanks MW-13 MW-14 II-1 II-2 113 114A 115 II-6 II-7 II-7B 11-8 II-12 II-3B II-9 SMW-1 SMW3 SMW4 Barium ug/L 03/01/99 -- -- 500 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND NC 2L = 700 ug/L ug/L 09/01/99 - -- 500 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND EPA MCL=2000 ug/L ug/L 03/01/00 - -- 500 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 500 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 500 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 500 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 500 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 500 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 500 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 500 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 500 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 500 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L O5/01/05 -- -- 500 ND ND ND ND ND -- ND ND ND ND ND 600 -- ND - -- -- ND ug/L 10/01/05 - -- 500 ND ND ND ND ND -- ND 560 ND ND ND -- -- -- - -- -- ND ug/L 04/01/06 - -- -- -- -- - -- _ __ __ __ ug/L 10/01/06 -- -- 500 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/12/07 -- -- -- 120 14.4 J 244 60.3 J 218 -- 131 292 26.4 J 16.5 J 74.6 J ND ug/L 09/26/07 -- -- -- 130 10.9 J 235 44.3 J 188 B - 139 B -- 77.7 J 12.8 J 75.0 J -- -- -- - -- -- -- ug/L 04/29/08 0.2 -- 100 107 13.0 J 241 50.4 J 244 -- 70.4 J 69.8 J 7.1 J 10.4 J 79.7 J 532 -- -- -- - -- ND ug/L 12/01/08 1.0 -- 100 127 12.7 J 296 46.2 J 194 - 110 486 17.9 J 11.1 J 86.8 J 878 -- - -- - -- ND ug/L 12/05/08 1.0 - 100 - - -- - -- - -- - -- - -- - -- - -- - -- ND ug/L 04/17/09 4.2 - 100 132 14.3 J 245 74.4 J ND - 71.6 J 37.1 J 13.9 J 10.2 J 87.6 J 488 -- - -- - -- ND ug/L 10/16/09 1.0 - 100 119 12.5 J 203 41.2 J 203 -- 124 410 90.7 J 10.2 J 79.2 J -- -- -- -- -- -- ND ug/L 04/28/10 1.0 -- 100 112 17.1 J 309 63.1 J 183 -- 89.0 J 339 21.7 J 11.5 J 87.7 J 386 -- -- -- -- -- ND ug/L 08/02/10 1.0 -- 100 __ __ __ __ __ __ __ -- -- -- -- -- -- -- 144 228 178 ND ug/L 10/11/10 1.0 -- 100 87.9 J 15.8 J 225 40.9 J 164 - 114 356 14.8 J 9.15 J 74.3 J 473 -- - 140 301 164 ND ug/L O5/09/11 1.0 - 100 108 12.3 J 415 53.5 J 207 - 91.4 J 104 13.1 J 10.6 J 105 397 -- - -- - -- ND ug/L 10/12/11 1.0 -- 100 115 17.4 J 429 45.2 J 191 -- 106 431 26.8 J 9.50 J 115 430 202 78.4 114 78.4 J 128 ND ug/L 04/17/12 1.0 -- 100 112 14.1 J 329 80.1 J 198 -- 89.6 J 105 22.4 J 9.45 J 123 396 -- -- -- - -- ND ug/L 10/25/12 1.0 -- 100 104 18.1 J 422 55.7 J 187 - 84.6 J 394 8.92 J 94.4 J 118 448 169 90.4 J 128 180 134 ND ug/L O5/02/13 1.0 - 100 120 20.5 J 253 57.3 J 218 - 88.4 J 26.1 J 21.9 9.59 J 131 341 167 91.8 J 117 150 123 ND ug/L 09/24/13 1.0 - 100 85.9 J 14.6 J 355 55.0 J 192 186 71.5 J 328 42.7 J 9.31 J 122 396 157 93.8 J 125 181 140 ND ug/L 04/24/14 1.0 -- 100 98.7 J 17.3 J 261 58.6 J 218 - 53.4 J 22.6 J 22.3 J 9.61 J 143 171 171 37.6 J 109 221 112 ND ug/L 10/06/14 1.0 -- 100 88.3 J 18.5 J 446 53.8 J 197 182 94.0 J 382 159 11.2 J 142 384 156 109 112 222 266 ND ug/L 04/14/15 1.0 - 100 105 19.7 J 376 62.1 J 265 216 109 90.1 J 71.7 J 9.99 J 116 - 179 110 108 333 139 ND ug/L 10/07/15 1.0 - 100 93.3 J - 424 221 201 187 102 269 87.0 13.4 J 150 221 178 110 69.0 J ND 59.7 J ND ug/L 04/20/16 1.0 -- 100 91.3 J 13.6 J 351 51.1 J 230 166 149 96.6 J 124 11.0 J 159 396 172 63.9 J ND 209 153 ND ug/L 09/26/16 1.0 -- 100 85.1 J -- 346 50.9 J 189 177 204 205 186 11.9 J 146 379 175 108 114 219 182 ND ug/L 04/25/17 1.0 -- 100 96.6 J 14.7 J 386 55.7 J 220 170 122 25.2 J 13.6 J 12.0 J 176 100 172 98.5 J 112 107 38.8 J ND ug/L 10/17/17 1.0 - 100 94.1 J - 426 51.6 J 202 193 195 433 194 21.2 J 170 273 163 109 98.4 J 303 166 ND ug/L 04/16/18 1.0 - 100 82.7 J 26.5 J 415 55.5 J 214 192 76.4 J 135 21.3 J 28.2 J 190 191 163 94.0 J 114 362 36.0 J ND ug/L 10/16/18 1.1 10.0 -- 94.5 -- 365 57.8 174 190 131 244 21.6 25.9 167 194 67.8 56.0 117 119 55.8 ND u /L 04/12/19 1 1.1 10.0 95.9 17.0 288 57.7 257 166 101 46.0 18.3 28.4 180 104 177 78.9 233 351 53.2 ND Beryllium ug/L 03/01/99 -- -- 2 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND IMAC=4 ug/L ug/L 09/01/99 -- 2 ND ND ND ND ND - ND ND ND ND ND -- -- -- -- -- -- ND EPA MCL=4 ug/L ug/L 03/01/00 -- -- 2 ND ND ND ND ND - ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 2 ND ND ND ND ND - ND ND ND ND ND ND ug/L 03/01/01 -- -- 2 ND ND ND ND ND - ND ND ND ND ND ND -- ND -- -- ND ug/L 09/01/01 -- 2 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 2 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 2 ND ND ND ND ND -- ND ND ND ND ND ND ug/L 04/15/03 -- -- 2 ND ND ND ND ND -- ND ND ND ND ND -- -- -- - -- -- ND ug/L 10/01/03 -- -- 2 ND ND ND ND ND -- ND ND ND ND ND ND ug/L 03/01/04 -- -- 2 ND ND ND ND ND -- ND ND ND ND ND ND - ND -- -- ND ug/L 09/01/04 -- -- 2 ND ND ND ND ND -- ND ND ND ND ND ND ug/L O5/01/05 -- -- 2 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 2 ND ND ND ND ND -- ND ND ND ND ND ND ug/L 04/01/06 __ __ __ - - -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 2 ND ND ND ND ND -- ND ND ND ND ND ND ug/L 04/12/07 -- -- -- ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND u9 09/26/07 -- -- -- -- ND -- ND ND ND - -- -- -- - -- ND ug/L 04/29/08 0.7 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- - -- - -- ND ug/L 12/01/08 0.10 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- - -- - -- ND ug/L 04/17/09 0.08 -- 1 ND ND ND ND ND -- ND ND ND ND ND 0.46 J ND ug/L 10/16/09 0.10 -- 1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/28/10 0.10 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 08/02/10 0.10 -- 1 __ __ __ __ __ __ __ - -- -- -- - -- -- ND ND ND ND ug/L 10/11/10 0.10 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- - ND ND ND ND ug/L O5/09/11 0.10 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/12/11 0.10 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/17/12 0.10 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/25/12 0.10 - 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L O5/02/13 0.10 - 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/24/13 0.10 - 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/24/14 0.10 - 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/06/14 0.10 -- 1 ND 0.102 J ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/14/15 0.10 -- 1 ND ND ND ND ND ND ND ND ND ND ND -- ND ND ND ND ND ND ug/L 10/07/15 0.10 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/16 0.10 - 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 0.10 - 1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/25/17 0.13 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 0.13 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/16/18 0.13 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 0.16 1.00 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 1 04/12/19 1 0.16 1 1.00 ND ND I ND ND ND ND ND ND ND ND ND ND I ND I ND ND ND ND I ND 1668421.105 r> GOLFER 2 of 24 August 2019 TABLE4 Smmary of Grondwater Monitoring Resits Detected Constitents White Street Landfill - Phase 11, Permit No. 41-03 Greensboro, North Carolina Method Practical SWS Assessment Reporting Sample Upgradient Monitoring Wells Compliance Downgraient Monitoring Wells Monitoring Sentinel Monitoring Wells Detected Monitoring Constitent Units Date Detection Quantitation Reporting Well Limit Limit Limit Blanks MW-13 MW-14 II-1 II-2 113 114A 115 II-6 II-7 II-7B 11-8 II-12 II-3B IIA SMW-1 SMW3 SMW4 Cadmium ug/L 03/01/99 -- -- 1 ND ND 3 ND ND -- ND 3 ND ND ND ND -- ND -- -- -- ND NC 2L = 2 ug/L ug/L -- -- 1 ND ND 2 ND ND -- ND 2 ND ND 1 -- -- - -- -- -- ND EPA MCL= 5 ug/L ug/L -- -- 1 ND ND 2 ND 4 -- 2 ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 1 ND ND 2 ND 1 -- ND 2 ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 1 ND ND 1.8 ND 5.7 -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L -- -- 1 ND ND 1.9 1.3 5.6 -- 1.5 6.1 1.0 1.3 1.5 -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 1 ND ND 1.0 1.0 2.1 -- 1.9 2.1 ND ND 1.0 ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 1 ND ND ND ND ND -- ND 4.5 ND ND ND ND ug/L 04/15/03 -- -- 1 ND ND ND ND 2.0 -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 1 ND ND 1.1 ND 4.7 -- ND 3.6 ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 1 ND 1.3 1.2 1.0 1.6 -- 1.4 1.8 ND ND ND ND ND ND ug/L 09/01/04 -- -- 1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L O5/01/05 -- -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ug/L 10/01/05 -- -- 1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/01/06 -- -- -- -- -- ug/L 10/01/06 -- -- 1 ND ND ND ND ND - ND ND ND ND ND -- -- - -- -- -- ND u9 04/12/07 -- -- -- ND ND ND ND ND -ND ND ND ND ND-- -- - ND u9 09/26/07 -- -- -- ND ND ND ND ND -ND -ND ND ND- -- - - ND ug/L 04/29/08 0.50 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 12/01/08 0.36 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 04/17/09 0.09 -- 1 ND 0.15 J 0.26 J 0.17 J 0.24 J -- ND 0.26 J 0.14 J 0.21 J 0.26 J 0.27 J -- - -- - -- ND ug/L 10/16/09 0.36 -- 1 ND ND ND ND ND - ND ND ND ND ND - -- - -- - -- ND ug/L 04/28/10 0.36 -- 1 ND ND ND ND ND - ND ND ND ND ND ND -- - -- - -- ND ug/L 08/02/10 0.36 -- 1 -- -- -- -- -- -- -- -- -- -- -- -- -- -- 1.78 ND ND ND ug/L 10/11/10 0.36 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- 4.79 ND ND ND ug/L 05/09/11 0.36 -- 1 ND ND ND ND ND - ND ND ND ND ND ND -- - -- - -- ND ug/L 10/12/11 0.36 -- 1 ND ND ND ND ND - ND ND ND ND ND ND ND ND 3.52 ND ND ND ug/L 04/17/12 0.36 - 1 ND ND ND ND ND - ND ND ND ND ND ND -- - -- - -- ND ug/L 10/25/12 0.36 -- 1 ND ND ND ND ND - ND ND ND ND ND ND ND ND 1.62 ND ND ND ug/L 05/02/13 0.36 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND 8.42 ND ND ND ug/L 09/24/13 0.36 -- 1 ND ND ND ND ND ND ND ND ND ND ND 0.644 J ND ND 2.00 ND ND ND ug/L 04/24/14 0.36 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND 3.01 ND ND ND ND ug/L 10/06/14 0.36 -- 1 ND 0.842 J ND ND ND ND ND 0.43 J ND ND 0.502 J ND ND 1.62 ND ND ND ND ug/L 04/14/15 0.36 -- 1 ND ND ND ND ND ND ND ND ND ND ND - ND ND 4.92 ND ND ND ug/L 10/07/15 0.36 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND 3.45 ND ND ND ug/L 04/20/16 0.36 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 0.36 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ND 0.375 ND ND ND ND ug/L 04/25/17 0.36 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND 8.65 ND ND ND ug/L 10/17/17 0.36 - 1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/16/18 0.36 - 1 ND ND ND ND ND ND ND ND ND ND ND ND ND 0.933 J 3.95 ND ND ND ug/L 10/16/18 0.36 1.00 -- ND -- ND ND ND ND ND ND ND ND ND ND ND 0.557 J 6.82 ND ND ND ug/L 04/12/19 0.36 1.00 ND ND ND ND ND ND ND ND ND ND ND ND ND 0.368 B 15.0 ND ND 0.361 Chromium ug/L 03/01/99 -- - 10 ND ND 47 ND ND - ND ND ND ND ND ND -- ND - - -- ND NC 2L = 10 ug/L ug/L 09/01/99 -- - 10 ND ND 20 ND ND - ND ND ND ND ND - -- - -- - -- ND EPA MCL=100 ug/L ug/L -- -- 10 ND ND 54 ND ND -- 12 ND ND ND ND ND -- ND - - -- ND ug/L 09/01/00 -- -- 10 ND ND 21 ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L -- -- 10 ND ND 32 ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 - -- 10 ND ND ND ND ND -- ND 10 ND ND ND -- -- -- - -- -- ND ug/L 03/01/02 - -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND - -- -- ND ug/L 09/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- - -- -- ND ug/L 04/15/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- - -- -- ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- - -- -- ND ug/L 03/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND - -- -- ND ug/L 09/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- - -- -- ND ug/L 05/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- - 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/01/06 -- -- -- -- -- -- __ ug/L 10/01/06 - -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/12/07 - -- -- ND 3.0 J ND ND ND -- ND ND ND ND ND ND ug/L 09/26/07 -- -- -- ND ND ND ND ND -- ND -- ND ND ND -- -- -- -- -- -- ND ug/L 04/29/08 2.0 -- 10 ND 6.9 J ND ND ND -- ND 6.7 J ND ND ND ND -- -- -- -- -- ND ug/L 12/01/08 1.0 -- 10 ND 3.3 J ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 12/05/08 1.0 -- 10 __ __ _ _ _ __ __ __ __ __ __ __ __ __ __ __ __ ND ug/L 04/17/09 0.7 -- 10 ND 6.9 J 2.4 J 1.9 J 3.6 J -- 2.8 J 0.7 J 0.9 J 0.8 J 1.6 J 24.7 -- -- -- -- -- ND ug/L 10/16/09 1.0 -- 10 ND 3.55 J 3.69 J ND 2.29 J -- 1.51 J 3.77 J 5.25 J ND ND - -- - -- - -- ND ug/L 04/28/10 1.0 -- 10 ND 2.24 J 2.4 J ND 2.24 J - 1.93 J ND 1.05 J ND ND ND -- - -- - -- ND ug/L 08/02/10 1.0 - 10 - -- - -- - -- - -- - 2.06 J ND ND ND ug/L 10/11/10 1.0 -- 10 ND 3.15 J ND ND 1.67 J -- ND ND ND 1.45 J ND ND - -- 6.52 J 7.86 J ND ND ug/L O5/09/11 1.0 -- 10 ND 4.26 J 4.93 J ND 1.87 J -- ND ND 1.04 J ND 1.42 J 1.17 J -- -- -- -- -- ND ug/L 10/12/11 1.0 -- 10 1.27 J 4.88 J 6.87 J 1.64 J 2.22 J -- 3.01 J 6.47 J 1.31 J ND 3.17 J 2.19 J 7.42 J 4.13 J 1.89 J 3.44 J 1.47 J ND ug/L 04/17/12 1.0 - 10 ND 3.75 J 6.80 J 2.15 J 3.16 J - 2.42 J 1.22 J 1.12 J ND 2.71 J 1.62 J -- - -- - - ND ug/L 10/25/12 1.0 -- 10 ND 2.23 J 2.85 J ND 2.15 J -- 1.13 J 3.16 J ND ND 1.04 J ND J ND 1.90 J 2.52 J ND ND ND ug/L 05/02/13 1.4 -- 10 1.74 J 2.19 J ND ND 5.55 J - 2.02 J 1.59 J 2.82 J ND 2.51 J ND ND 2.39 J 3.75 J ND ND ND ug/L 09/24/13 1.4 -- 10 ND ND 2.92 J ND 3.99 J 2.03 J ND 1.49 J ND ND ND 3.97 J 2.63 J ND ND 3.98 J ND ND ug/L 04/24/14 1.4 - 10 ND 1.51 J 2.28 J ND 2.77 J - 1.60 J ND 2.09 J ND 2.63 J 3.34 J ND 2.35 J 1.88 J ND ND ND ug/L 10/06/14 1.4 -- 10 ND ND 4.79 J ND 1.57 J 1.94 J ND 3.92 J ND ND 1.71 J 2.17 J ND 2.67 J 4.16 J 1.83 J 1.93 J ND ug/L 04/14/15 1.4 - 10 ND ND 3.88 J ND 7.10 J ND 1.83 J ND 1.60 J ND ND -- ND ND ND ND 2.83 J ND ug/L 10/07/15 1.4 -- 10 ND - 3.16 J 3.17 J ND ND 5.02 J 2.47 J ND ND 2.10 J 3.17 J ND ND 2.19 J ND 5.87 J ND ug/L 04/20/16 1.4 -- 10 ND ND ND ND 3.14 J ND 1.82 J ND ND ND ND 5.50 J ND ND ND ND 9.98 J ND ug/L 09/26/16 1.4 -- 10 ND - ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/25/17 1.4 -- 10 ND ND ND ND 2.04 J ND 8.77 J 2.76 J 1.91 J ND ND 5.21 J ND 2.13 J 9.36 J ND 3.26 J ND ug/L 10/17/17 1.4 -- 10 ND - 3.73 J ND 1.68 J 2.05 J 2.82 J 2.40 J ND ND 2.87 J ND 1.57 J 2.38 J 2.16 J ND 1.60 J ND ug/L 04/16/18 1.4 - 10 ND 1.91 J 2.34 J ND ND ND 2.71 J ND 1.40 J ND ND 2.08 J ND ND 2.63 J ND ND ND ug/L 10/16/18 1.4 10.0 -- ND - 3.37 J ND 3.00 J 2.66 J 2.27 J ND 2.14 J ND 3.53 J 1.60 J 2.15 J 2.39 J 3.11 J ND ND ND u /L 1 04/12/19 1 1.4 1 10.0 ND ND 1 3.07 J ND 2.57 J 2.75 J 3.17 J ND 2.55 J ND 3.71 J 1.87 11 1.57 11 ND 3.38 J ND ND I ND 1668421.105 r> GOLFER 3 of 24 August 2019 TABLE4 Smmary of Grondwater Monitoring Resits Detected Constitents White Street Landfill - Phase II, Permit No. 41-03 Greensboro, North Carolina Method Practical SWS Assessment Reporting Sample Upgradient Monitoring Wells Compliance Downgraient Monitoring Wells Monitoring Sentinel Monitoring Wells Detected Monitoring Constitent Units Data Detection Quantitation Reporting Well Limit Limit Limit Blanks MW-13 MW-14 II-1 II-2 II-3 IIdA II-5 II-6 II-7 II-7B II$ II-12 II-3B II-9 SMW-1 SMW-3 SMW-4 Cobalt ug/L 03/01/99 -- -- 10 ND ND 36 ND 13 -- 18 27 ND ND ND ND - ND -- -- -- ND IMAC = I ug/L ug/L -- -- 10 ND ND 18 ND 10 -- ND 13 ND ND ND -- - -- -- -- -- ND (No EPA MCL) ug/L 03/01/00 -- -- 10 ND ND 29 ND 45 -- 46 ND ND ND ND ND - ND - -- -- ND ug/L 09/01/00 -- -- 10 ND ND 41 ND 14 -- ND 12 ND ND ND ND ug/L 03/01/01 - -- 10 ND ND 19 ND 34 -- ND ND ND ND ND ND - ND - -- - ND ug/L 09/01/01 - -- 10 ND ND 46 ND 28 -- 11 39 ND ND ND -- - -- - -- - ND ug/L 03/01/02 - -- 10 ND ND 10 ND 18 -- 1.2 15 ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 10 ND ND 29 ND 10 - ND 36 ND ND ND ND ug/L 04/15/03 -- -- 10 ND ND ND 14 61 -- 33 ND ND ND ND -- -- - -- -- ND ug/L 10/01/03 -- -- 10 ND ND 13 ND 39 - 13 29 ND ND ND ND ug/L 03/01/04 -- -- 10 ND ND 28 ND 72 -- 15 20 ND ND ND ND - ND - -- -- ND ug/L 09/01/04 -- -- 10 ND ND 17 ND 25 - 11 15 ND ND ND ug/L 05/01/05 - -- 10 ND ND 24 ND 40 -- ND 25 ND ND ND 33 ND - -- ND ug/L 10/01/05 -- -- 10 ND ND 60 ND 23 - 13 48 ND ND NDND __ __ __ _ __ __ ug/L 04/01/06 __ __ __ __ __ - ug/L 10/01/06 - -- 10 ND ND 72.3 ND 31.8 -- 12.8 42.7 ND ND ND -- -- -- - -- -- ND u9 04/12/07 - -- -- ND -- 12.3 24.5 ND ND ND -- -- -- -- -- -- ND u9 09/26/07 -- -- -- -- 17.5 -- ND ND ND - -- __ __ __ __ ND ug/L 04/29/08 2.0 -- 10 ND ND 4.3 J ND 26.0 -- 2.1 J 5.3 J ND ND ND 49.2 -- -- - -- -- ND ug/L 12/01/08 1.1 -- 10 ND ND 51.4 ND 25.1 -- 4.4 J 42.4 1.3 J ND ND 22.4 __ __ _ __ __ ND ug/L 12/05/08 1.1 -- 10 __ __ _ __ __ _ _ __ _ __ _ _ __ __ __ __ __ ND ug/L 04/17/09 0.6 -- 10 ND ND ND ND 21.6 -- 4.1 J 1.1 J ND ND ND 34.4 -- -- -- -- -- ND ug/L 10/16/09 1.1 -- 10 ND ND 36.5 ND 25.2 - 20.1 34.5 2.3 J ND ND - __ __ __ __ __ ND ug/L 04/28/10 1.1 -- 10 ND ND 26.4 ND 23.0 -- 32.3 25.8 2.11 J ND 1.46 J 8.21 J -- -- -- -- -- ND ug/L 08/02/10 1.1 -- 10 -- -- -- -- - -- -- 15.5 3.12 J 4.55 J ND ug/L 10/11/10 1.1 -- 10 ND ND 35.8 ND 16.1 -- 23.2 27.7 ND ND ND 6.73 J -- -- 7.34 J 13.0 1.48 ND ug/L O5/09/11 1.1 -- 10 ND ND 22.4 ND 21.2 - 5.86 J 4.91 J ND ND ND 8.16 J __ __ __ __ __ ND ug/L 10/12/11 1.1 -- 10 ND ND 59.4 ND 18.5 -- 9.65 J 40.7 ND ND 1.88 J 4.74 J 7.05 J 6.38 J 7.7 J 1.45 J 5.54 J ND ug/L 04/17/12 1.1 -- 10 ND ND 23.1 ND 14.1 - 7.28 J 6.23 J ND ND 1.77 J 6.20 J - -- - -- - ND ug/L 10/25/12 1.1 -- 10 ND ND 44.2 ND 14.6 -- 1.33 J 35.3 ND ND 1.25 J 1.85 J 2.31 J 4.48 J 10.3 1.92 J ND ND ug/L 05/02/13 1.1 -- 10 ND ND 17.0 ND 17.1 __ 6.58 J ND ND ND ND 4.88 J 1.70 J 2.57 J 1.10 2.39 J ND ND ug/L 09/24/13 1.1 -- 10 ND ND 45.1 ND 14.0 4.20 J 6.64 J 23.1 2.56 J ND 2.32 J 6.01 J 3.04 J 4.31 J 16.6 4.27 J 6.75 J ND ug/L 04/24/14 1.1 -- 10 ND ND 20.5 ND 14.4 -- 6.06 J ND ND ND 1.71 J 6.81 J 2.66 J 11.4 1.72 J 2.50 J 1.48 J ND ug/L 10/06/14 1.1 -- 10 ND ND 58.5 ND 12.3 1.33 J 11.0 29.3 1.63 J ND 1.87 J 1.65 J 1.42 J 4.61 J 11.2 2.76 J 4.22 J ND ug/L 04/14/15 1.1 -- 10 ND ND 26.8 ND 18.5 1.82 J 12.2 5.11 J ND ND 2.03 J -- 2.09 J 3.32 J 20.8 3.40 J 1.10 J ND ug/L 10/07/15 1.1 -- 10 ND -- 42.7 9.65 J 12.9 ND 3.46 J 21.2 3.51 ND 1.75 J 9.65 J 2.22 J 6.64 J 19.9 2.01 J ND ND ug/L 04/20/16 1.1 -- 10 ND ND 35.5 ND 11.2 ND 16.4 5.77 J ND ND 2.42 J 7.80 J 1.42 J 18.7 30.7 2.10 J 1.77 J ND ug/L 09/26/16 1.1 -- 10 ND -- 50.2 ND 10.6 ND 15.4 26.2 1.60 J ND 2.29 J 3.05 J 1.35 J 3.97 43.4 2.88 J 1.50 J ND ug/L 04/25/17 1.1 -- 10 ND ND 20.3 ND 12.4 ND 4.75 J ND ND ND 3.30 J 4.19 J 1.41 J 2.71 J 2.39 J 1.39 J ND ND ug/L 10/17/17 1.1 -- 10 ND -- 48.6 1.39 J 9.06 J ND 15.1 33.8 2.57 J ND 4.20 J 1.65 J 4.41 J 4.63 J 21.4 3.30 J 2.08 J ND ug/L 04/16/18 1.1 -- 10 ND 1.53 J 29.9 ND 10.6 ND 6.18 J 12.9 ND ND 4.20 J 8.52 J 2.82 J 2.26 J 16.2 4.16 J ND ND ug/L 10/16/18 1.4 10.0 -- ND -- 20.2 ND 7.50 J ND 8.87 J 21.5 ND ND 4.19 J 2.00 J 3.16 J 1.49 J 14.0 2.37 J ND ND ug/L 04/12/19 1.4 10.0 ND ND 27.3 ND 12.1 ND 3.65 J ND ND ND 6.20 J 3.19 J 2.77 J 5.42 J 8.20 J 3.16 J ND ND Copper ug/L 03/01/99 - -- 200 ND ND ND ND ND -- ND ND ND ND ND ND - ND - -- -- ND NC 2L = 1000 ug/L ug/L -- -- 200 ND ND ND ND ND -- ND ND ND ND ND -- -- -- - -- -- ND EPA IVICL=1300 ug/L ug/L -- -- 200 ND ND 220 ND ND -- 360 ND ND ND ND ND -- ND - -- -- ND ug/L 09/01/00 -- -- 200 ND ND ND ND ND -- ND ND ND ND ND ND ug/L 03/01/01 -- -- 200 ND ND ND ND ND - ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- 200 ND ND ND ND ND - ND ND ND ND ND -- -- - - -- -- ND ug/L 03/01/02 -- -- 200 ND ND ND ND ND - ND ND ND ND ND ND - ND - -- -- ND ug/L 09/01/02 -- -- 200 ND ND ND ND ND -- ND ND ND ND ND ND ug/L 04/15/03 -- -- 200 ND ND ND ND ND -- ND ND ND ND ND ND ug/L 10/01/03 -- -- 200 ND ND ND ND ND -- ND ND ND ND ND ND ug/L 03/01/04 -- -- 200 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 200 ND ND ND ND ND -- ND ND ND ND ND ND ug/L O5/01/05 -- -- 200 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 200 ND ND ND ND ND -- ND ND ND ND ND ND ug/L 04/01/06 -- -- -- -- -- ug/L 10/01/06 -- -- 200 ND ND ND ND ND -- ND ND ND ND ND -- -- -- - - -- ND . _ ND ug/L09/26/07 -- -- -- 0.6 0.8 B ND 2.0 B -- - -- -- ug/L 04/29/08 0.6 -- 10 4.0 J 2.8 J 8.0 J ND ND - 4.4 J 7.7 J 4.1 J 2.9 J 2.5 J ND -- - -- - -- ND ug/L 12/01/08 1.6 -- 10 ND ND 3.3 J ND ND -- ND ND 1.8 J ND ND ND -- -- - - -- ND ug/L 04/17/09 0.81 -- 10 ND ND ND ND 3.4 J -- 1.31 J 1.7 J ND 2.17 J ND 13.9 ND ug/L 10/16/09 1.6 -- 10 ND ND 4.76 J ND 2.31 J -- ND ND 3.91 J 1.95 J ND -- -- -- -- - -- ND ug/L 04/28/10 1.6 -- 10 ND ND 4.05 J ND 3.42 J -- ND 3.86 J 1.88 J ND ND ND -- - -- - -- ND ug/L 08/02/10 1.6 -- 10 -- -- - -- - -- - -- - 11.9 1.66 J ND ND ug/L 10/11/10 1.6 - 10 ND ND 15.4 ND 2.03 J -- ND ND 1.76 J 1.67 J ND ND -- -- 18.1 72.0 2.35 J ND ug/L O5/09/11 1.6 - 10 ND ND 17.3 ND 1.79 J -- 2.89 J 2.46 J ND 1.81 J ND ND -- - -- -- -- ND ug/L 10/12/11 1.6 -- 10 ND ND 9.93 B ND ND -- 1.96 J ND ND 2.54 J ND ND 2.62 J 9.54 9.63 J 7.38 J ND ND ug/L 04/17/12 1.6 -- 10 ND ND 6.67 J ND 2.64 J - 1.75 J 2.92 J ND 2.02 J ND ND -- - -- - -- ND ug/L 10/25/12 1.6 - 10 ND ND 21.6 ND ND - 2.46 J ND 1.64 J ND ND ND ND 6.12 J 5.37 J ND ND ND ug/L 05/02/13 1.6 -- 10 ND ND 7.45 J ND ND -- ND 1.62 J ND ND ND ND ND 1.79 J 11.1 ND ND ND ug/L 09/24/13 1.6 - 10 ND ND 8.78 J ND ND ND ND ND ND 1.69 J ND 1.61 J ND ND 2.56 J ND ND ND ug/L 04/24/14 1.6 -- 10 1.87 J 2.24 J 8.55 J ND 2.14 J -- 4.30 J 2.62 J 2.07 J 3.98 J 2.51 J 2.20 J ND 72.7 6.18 J 3.40 J ND ND ug/L 10/06/14 1.6 - 10 ND ND 14.4 ND ND ND ND ND ND ND ND ND ND 28.2 1.77 J 4.50 J ND ND ug/L 04/14/15 1.6 -- 10 ND ND 6.09 J ND 5.46 J ND 3.37 J 3.18 J 5.89 J 3.95 J ND -- ND ND 10.9 5.25 J 1.60 ND ug/L 10/07/15 1.6 -- 10 ND -- 13.3 ND ND ND 3.17 J 9.18 J ND ND ND ND ND ND 12.9 ND ND ND ug/L 04/20/16 1.6 -- 10 ND ND ND ND 3.18 J ND ND 2.62 J ND 2.00 J 2.04 J 4.03 J ND 27.0 7.69 J 2.49 J 1.60 ND ug/L 09/26/16 1.6 -- 10 3.10 J -- 5.98 J 3.27 J 2.63 J 3.31 J 2.97 J 4.37 J 5.13 J 3.95 J 8.28 J ND 3.04 J 4.47 4.68 J 3.04 J 3.74 J ND ug/L 04/25/17 1.6 -- 10 2.85 B ND 26.9 ND ND ND 5.38 B 24.4 ND 1.94 B 8.19 B 10.2 ND 5.25 B 14.8 8.76 B 2.56 B 2.00 J ug/L 10/17/17 1.6 -- 10 ND -- 18.1 ND ND ND ND ND ND ND 3.37 J ND ND 2.85 J 2.37 J ND ND ND ug/L 04/16/18 1.6 -- 10 ND ND 14.4 ND ND ND 2.48 J ND ND ND ND ND ND ND 12.3 ND ND ND ug/L 10/16/18 1.6 10.0 - ND - 19.1 ND 3.24 J 3.43 J ND 5.86 J ND ND 10.9 ND 3.60 J 12.8 18.2 1.89 J ND ND u /L 1 04/12/19 1 1.6 1 10.0 ND ND 1 4.04 J ND 2.20 J ND 2.49 J 86.0 1.75 J 2.69 J 12.2 4.16 11 ND 1 4.02 J 14.9 ND ND I ND 1668421.105 r> GOLFER 4 of 24 August 2019 TABLE4 Smmary of Grondwater Monitoring Resits Detected Constitents White Street Landfill - Phase 11, Permit No. 41-03 Greensboro, North Carolina Method Practical SWS Assessment Reporting Sample Upgradient Monitoring Wells Compliance Downgraient Monitoring Wells Monitoring Sentinel Monitoring Wells Detected Monitoring Constitent Units Date Detection Quantitation Reporting Well Limit Limit Limit Blanks MW-13 MW-14 II-1 II-2 113 114A 115 II-6 II-7 II-7B 11-8 II-12 II-3B II-9 SMW-1 SMW3 SMW4 Lead ug/L 03/01/99 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND NC 2L = 15 ug/L ug/L 09/01/99 - -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND EPA MCL = 15 ug/L ug/L 03/01/00 - -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- - 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L O5/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/01/06 -- -- -- -- -- -- __ ug/L 10/01/06 -- -- 10 ND ND ND ND ND - ND ND ND ND ND - -- -- -- - -- ND ug/L 04/12/07 -- -- -- ND ND ND ND ND - ND ND ND ND ND ND ug/L 09/26/07 -- -- - ND ND ND ND ND - ND - ND ND ND - -- -- -- -- ND ug/L 04/29/08 2.0 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- - -- -- ND ug/L 12/01/08 1.9 -- 10 ND ND ND ND ND -- ND ND ND ND ND 5.3 J -- -- -- -- -- ND ug/L 12/05/08 1.9 __ 10 __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ ND ug/L 04/17/09 1.6 -- 10 ND ND 1.7 J 3.2 J 3.3 J -- 2.5 J ND ND ND 3.1 J 10.5 -- -- -- - -- ND ug/L 10/16/09 1.9 -- 10 ND ND 17.2 ND ND -- ND ND 5.37 J ND ND - __ __ __ _ __ ND ug/L 04/28/10 1.9 -- 10 ND ND ND ND ND -- ND 2.41 J ND ND ND ND ND ug/L 08/02/10 1.9 -- 10 __ __ __ __ __ __ __ __ __ __ __ -- -- -- ND ND ND ND ug/L 10/11/10 1.9 -- 10 ND ND ND ND ND - ND ND ND ND ND ND -- -- 3.42 J ND ND ND ug/L O5/09/11 1.9 - 10 ND ND ND ND ND - ND ND ND ND ND ND -- - -- - -- ND ug/L 10/12/11 1.9 - 10 ND ND ND ND ND - 1.90 ND 1.90 1.90 ND ND ND 2.37 ND ND ND ND ug/L 04/17/12 1.9 -- 10 ND ND 3.71 J ND 2.28 J - ND ND ND ND ND ND - -- - -- -- ND ug/L 10/25/12 1.9 -- 10 ND 2.64 J 3.47 J ND 4.26 J -- 2.11 J ND ND ND ND 3.18 J ND 2.97 J 4.22 J 3.94 J 3.63 J ND ug/L O5/02/13 1.9 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/24/13 2.1 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/24/14 2.1 - 10 ND ND 4.05 J ND 2.70 J - 2.81 J ND ND ND ND 3.49 J ND ND ND ND ND ND ug/L 10/06/14 2.1 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND 2.52 J ND ND ND ND ug/L 04/14/15 3.1 -- 10 ND ND ND ND ND ND ND ND ND ND ND -- ND ND ND ND ND ND ug/L 10/07/15 3.1 -- 10 ND -- ND ND ND 4.86 J ND 4.05 J ND ND ND ND ND 4.51 J ND ND ND ND ug/L 04/20/16 3.1 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 3.1 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND 3.52 J ND ND ND ND ND ug/L 04/25/17 3.1 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 3.1 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND 3.11 J ND ND ug/L 04/16/18 3.1 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 3.1 10.0 - ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 04/12/19 1 3.1 10.0 ND ND ND ND ND ND ND 6.04 J ND ND ND ND 4.86 J ND ND ND ND ND Nickel ug/L 03/O1/99 -- - 50 ND ND ND ND ND - ND ND ND ND ND ND -- ND -- - -- ND NC 2L = 100 ug/L ug/L 09/01/99 -- - 50 ND ND ND ND ND - ND ND ND ND ND -- -- -- - -- -- ND (No EPA MCL) ug/L 03/01/00 -- -- 50 ND ND ND ND ND -- 97 ND ND ND ND ND -- ND - -- -- ND ug/L 09/01/00 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- - -- -- ND ug/L 03/01/01 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 50 ND ND ND ND ND - ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 50 ND ND ND ND ND - ND ND ND ND ND -- - -- - -- -- ND ug/L 04/15/03 -- -- 50 ND ND ND ND ND - ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 50 ND ND ND ND ND - ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L O5/01/05 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- - -- - -- -- ND ug/L 04/01/06 -- -- -- -- -- ug/L 10/01/06 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/26/07 -- -- -- ND ND 5.9 J ND 4.3 J -- 4.2 J - 2.5 J ND 8.4 J - - -ND ug/L 04/29/08 2.0 -- 50 ND ND 6.7 J ND 9.5 J -- ND 6.7 J ND ND ND 15.0 J -- - -- -- -- ND ug/L 12/01/08 1.8 -- 50 ND ND 7.5 J ND 10.3 J -- 2.1 J 33.9 J ND ND 9.1 J 8.2 J -- -- -- -- -- ND ug/L 12/05/08 1.8 -- 50 __ __ __ __ __ __ __ _ __ __ __ _ __ _ __ _ __ ND ug/L 04/17/09 0.6 -- 50 1.1 J ND 10.7 J ND 13.6 J - 3.0 J 2.1 J 1.3 J 0.8 J 11.6 J 22.8 J -- - -- - -- ND ug/L 10/16/09 1.8 -- 50 ND ND 9.15 J ND 11.6 J - 3.42 J 40.3 J 4.46 J ND 9.71 J -- - -- - -- - ND ug/L 04/28/10 1.8 -- 50 ND ND 13.2 J ND 11.2 J -- 3.86 J 36.6 J 1.96 J ND 12.0 J 10.7 J -- - -- -- -- ND ug/L 08/02/10 1.8 -- 50 -- -- - -- -- -- - -- - 1.86 J ND 4.28 J ND ug/L 10/11/10 1.8 -- 50 ND ND 9.47 J ND 10.1 J - 3.95 J 40.5 J ND ND 10.2 J 10.4 J -- - 3.75 J 5.57 J 4.15 ND ug/L O5/09/11 1.8 - 50 ND ND 20.2 J ND 10.9 J - 3.66 J 9.44 J ND ND 17.7 J 11.2 J -- - -- - -- ND ug/L 10/12/11 1.8 - 50 ND ND 19.5 J ND 14.2 J -- 3.80 J 63.2 1.80 1.80 20.0 J 10.5 J 8.29 J 3.25 2.89 J 2.17 J 3.30 J ND ug/L 04/17/12 1.8 -- 50 ND ND 16.7 J ND 11.0 J -- 5.40 J 9.09 J ND ND 22.7 J 8.58 J -- -- -- -- -- ND ug/L 10/25/12 1.8 -- 50 ND ND 18.0 J ND 12.4 J -- ND 44.8 J ND 2.66 J 23.4 J 11.3 J 4.38 J ND 3.34 J 1.80 2.98 ND ug/L O5/02/13 1.8 -- 50 1.94 J ND 15.0 J ND 13.3 J - 3.53 J 2.41 J 2.06 J ND 30.7 J 9.75 J 4.89 J 1.92 J 5.09 J ND 4.08 J ND ug/L 09/24/13 1.8 - 50 ND ND 20.8 J ND 12.5 J 25.9 J 2.37 J 41.1 J ND ND 28.9 J 10.7 J 5.33 J ND 3.41 J 2.16 J 5.19 J ND ug/L 04/24/14 1.8 -- 50 ND ND 14.5 J ND 13.6 J - 2.82 J 2.06 J 2.30 J ND 37.1 J 6.43 J 5.22 J 8.39 J 3.79 J ND 5.89 J ND ug/L 10/06/14 1.8 -- 50 ND ND 26.2 J ND 11.7 J 25.9 J 2.99 J 54.3 4.07 J ND 37.7 J 6.97 J 3.68 J 2.62 J 2.49 J ND 9.65 J ND ug/L 04/14/15 1.8 -- 50 ND 3.35 J 24.9 J ND 16.0 J 27.9 J 7.04 J 4.44 J 2.07 J ND 33.8 J - 4.18 J ND 3.66 J ND 5.47 J ND ug/L 10/07/15 1.8 -- 50 ND -- 27.7 J 3.06 J 12.1 J 33.4 J 2.87 J 32.5 J 4.65 ND 44.4 J 3.06 J 3.75 J 2.53 J 4.18 J ND ND ND ug/L 04/20/16 2.2 -- 50 ND ND 23.9 J ND 13.1 J 33.5 J 6.73 J 7.26 J 5.39 J ND 51.8 13.2 J 6.70 J 10.4 J 5.16 J ND 6.36 J ND ug/L 09/26/16 2.2 -- 50 ND -- 28.1 J ND 12.7 J 35.9 J 8.05 J 51.5 6.69 J ND 51.5 8.85 J 5.74 J 3.44 6.47 J ND 7.49 J ND ug/L 04/25/17 2.2 -- 50 ND ND 25.4 J ND 12.2 J 35.9 J 5.82 J ND ND ND 63.7 3.27 J 4.17 J ND 5.07 J ND ND ND ug/L 10/17/17 2.2 - 50 6.26 J -- 25.5 J ND 10.4 J 36.9 J 5.83 J 50.9 4.20 J 9.12 J 62.6 ND 2.76 J ND 4.11 J ND 3.98 J ND ug/L 04/16/18 2.2 -- 50 ND ND 30.6 J ND 11.9 J 46.6 J 4.78 J 9.74 J ND ND 82.2 5.68 J 3.17 J 2.20 J 4.25 J ND ND ND ug/L 10/16/18 2.2 10.0 -- ND -- 29.0 ND 9.47 J 56.6 5.42 J 22.3 ND ND 78.9 3.79 J ND 2.53 J 22.1 2.64 J ND ND u /L 1 04/12/19 1 2.2 1 10.0 ND ND 1 25.4 ND 9.59 B 59.0 4.40 B 2.25 B ND ND 96.2 5.40 BI 4.42 B 1 4.58 B 6.58 B ND ND 1 2.78 1668421.105 r> GOLFER 5 of 24 August 2019 TABLE4 Smmary of Grondwater Monitoring Resits Detected Constitents White Street Landfill - Phase 11, Permit No. 41-03 Greensboro, North Carolina Method Practical SWS Assessment Reporting Sample Upgradient Monitoring Wells Compliance Downgraient Monitoring Wells Monitoring Sentinel Monitoring Wells Detected Monitoring Constitent Units Date Detection Quantitation Reporting Well Limit Limit Limit Blanks MW-13 MW-14 II-1 II-2 113 114A 115 II-6 II-7 II-7B 11-8 II-12 II-3B II-9 SMW-1 SMW3 SMW4 Selenium ug/L 03/01/99 -- -- 20 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND NC 2L = 20 ug/L ug/L 09/01/99 - -- 20 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND EPA MCL=50 ug/L ug/L 03/01/00 - -- 20 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 20 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 20 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 20 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 20 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 20 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 20 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- - 20 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 20 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 20 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L O5/01/05 -- -- 20 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 20 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/01/06 -- -- -- -- -- -- __ ug/L 10/01/06 -- -- 20 ND ND ND ND ND - ND ND ND ND ND - -- -- -- -- -- ND ug/L 04/12/07 -- -- -- ND ND ND ND ND - ND ND 4.0 J 3.4 J ND ND ug/L 09/26/07 -- -- - ND ND ND ND ND -- ND - ND ND ND - -- -- - -- -- ND ug/L 04/29/08 2.0 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 12/01/08 2.7 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 04/17/09 3.4 -- 10 ND ND ND ND ND -- ND ND ND ND ND 3.8 J -- -- -- -- -- ND ug/L 10/16/09 2.7 -- 10 ND ND ND ND ND -- ND 6.5 J ND ND ND -- -- -- -- -- -- ND ug/L 04/28/10 0.83 -- 10 ND ND 16.1 J 5.04 J 4.18 J -- 2.57 J 17.3 2.09 J ND 17.0 3.19 J -- -- -- - -- ND ug/L 08/02/10 0.83 -- 10 - -- - -- -- -- -- -- -- -- -- -- -- -- ND ND 9.47 J ND ug/L 10/11/10 0.83 -- 10 1.31 J ND 9.61 J 4.27 J 4.02 J -- 2.54 J 11.6 ND ND 10.2 3.63 J -- -- -- - -- ND ug/L O5/09/11 0.83 -- 10 1.07 J ND 29.9 6.46 J 6.00 J - 1.91 J 4.76 J 1.08 J 1.10 J 24.7 3.38 J -- - -- - -- ND ug/L 10/12/11 2.7 - 10 ND 2.80 J ND ND ND - 2.39 J ND 0.926 J 0.83 ND 3.11 J 3.59 J 1.95 ND ND 3.57 J ND ug/L 04/17/12 0.83 - 10 ND ND ND ND ND - ND ND ND ND ND ND -- -- - -- -- ND ug/L 10/25/12 0.83 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 05/02/13 0.91 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/24/13 0.91 -- 10 ND ND 1.23 J ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/24/14 0.91 -- 10 ND ND ND ND ND - ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/06/14 0.91 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/14/15 0.91 -- 10 ND ND ND ND ND ND ND ND ND ND ND -- ND ND ND ND ND ND ug/L 10/07/15 0.91 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/16 0.91 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 0.91 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/25/17 6.2 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 6.2 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/16/18 6.2 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 6.2 10.0 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 04/12/19 1 6.2 10.0 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 10.0 Silver ug/L 03/01/99 -- -- 10 ND ND ND ND ND - ND ND ND ND ND ND -- ND -- - -- ND NC 2L=20 ug ug -- -- 10 ND ND ND ND ND -- ND ND ND ND ND - -- - -- - -- ND EPA MCL=100 ug ug -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND - -- -- ND ug/L 09/01/00 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND ug/L 03/01/01 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 10 ND ND ND ND ND - ND ND ND ND ND ND ug/L 04/15/03 -- -- 10 ND ND ND ND ND - ND ND ND ND ND ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND - ND ND ND ND ND ND ug/L 03/01/04 -- -- 10 ND ND ND ND ND - ND ND ND ND ND ND ND ND ug/L 09/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND ug/L O5/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND ug/L 04/01/06 -- -- -- - -- - - ug/L 10/01/06 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND u9 04/12/07 -- -- -- -- ND ND ND ND ND -- -- -- -- -- -- ND ug 09/26/07 -- -- -- -- ND -- ND ND 2.6 J -- -- -- -- -- -- ND ug/L 04/29/08 2.0 -- 10 2.7 J 2.6 J 2.7 J ND ND -- ND ND 2.7 J 2.1 J 2.9 J ND -- - -- - -- ND ug/L 12/01/08 1.9 -- 10 ND ND ND ND ND -- ND ND 2.3 J ND ND ND -- -- - -- -- ND ug/L 04/17/09 1.0 -- 10 ND ND 3.6 J 1.6 J ND -- ND ND ND ND 3.9 J ND ND ug/L 10/16/09 1.9 -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/28/10 1.9 -- 10 ND ND 4.47 ND ND -- ND 4.32 J ND ND 3.07 J 2.50 J ND ug/L 08/02/10 1.9 -- 10 -- -- -- -- -- - -- - -- - -- - -- - ND ND ND ND ug/L 10/11/10 1.9 - 10 ND ND 3.27 J ND ND - ND ND ND ND 3.25 J ND - -- ND ND 5.30 ND ug/L 05/09/11 1.9 -- 10 ND ND 2.84 J ND ND -- ND ND ND ND 2.28 J ND -- -- -- -- -- ND ug/L 10/12/11 1.9 -- 10 ND ND 2.91 J ND ND -- ND 3.63 J ND ND ND 3.50 J ND ND ND ND ND ND ug/L 04/17/12 1.9 -- 10 ND ND 2.68 J ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/25/12 1.9 -- 10 ND ND 3.09 J ND ND -- ND 3.04 J ND ND ND 2.72 J ND ND ND ND ND ND ug/L O5/02/13 1.9 -- 10 ND ND 2.83 J ND ND -- ND ND ND ND 2.11 J ND ND ND ND ND ND ND ug/L 09/24/13 1.9 -- 10 ND ND 2.71 J ND ND ND ND 2.61 J ND ND ND ND ND ND ND ND ND ND ug/L 04/24/14 1.9 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND ND 2.43 J ND ND ND ND ug/L 10/06/14 1.9 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/14/15 1.9 - 10 ND ND 3.24 J ND ND ND ND ND ND ND 2.51 J - ND ND ND ND ND ND ug/L 10/07/15 1.9 - 10 2.79 J -- 7.83 J ND ND ND ND ND ND ND 5.84 J ND ND ND ND ND ND ND ug/L 04/20/16 1.9 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 1.9 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/25/17 1.9 -- 10 ND ND ND ND ND ND ND ND ND ND 2.79 J ND ND ND ND ND ND ND ug/L 10/17/17 1.9 - 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/16/18 1.9 - 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 1.9 10.0 - ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 1 04/12/19 1 1.9 1 10.0 ND ND I ND ND ND ND ND ND ND ND ND ND I ND I ND ND ND ND I ND 1668421.105 r> GOLFER 6 of 24 August 2019 TABLE4 Smmary of Grondwater Monitoring Resits Detected Constitents White Street Landfill - Phase 11, Permit No. 41-03 Greensboro, North Carolina Method Practical SWS Assessment Reporting Sample Upgradient Monitoring Wells Compliance Downgraient Monitoring Wells Monitoring Sentinel Monitoring Wells Detected Monitoring Constitent Units Date Detection Quantitation Reporting Well Limit Limit Limit Blanks MW-13 MW-14 II-1 II-2 113 114A IIS II-6 II-7 II-7B 11-8 II-12 II-3B IIA SMW-1 SMW3 SMW4 Thallium ug/L 03/01/99 -- -- 10 ND ND ND ND ND -- 14 29 ND ND ND ND -- ND - - -- ND IMAC _ 0.2 ug ug -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- - - - -- ND EPA MCL=2 ug/L ug/L 03/01/00 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND - - -- ND ug/L 09/01/00 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND ug/L 03/01/01 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND - - -- ND ug/L 09/01/01 -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- - - -- -- ND ug/L 03/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND - -- -- ND ug/L 09/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND ug/L 04/15/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- - - -- -- ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND ug/L 03/01/04 -- -- 10 ND ND ND ND 13 -- ND ND ND ND ND ND -- ND - -- -- ND ug/L 09/01/04 -- -- 10 10 J ND ND ND ND -- 10 J ND ND ND ND -- -- - - -- -- ND ug/L O5/01/05 -- -- 10 ND ND 16 11 ND -- ND 16 ND ND ND ND ND ND ug/L 10/01/05 -- -- 10 ND ND 23 ND ND -- ND 25 ND ND ND -- -- -- - -- -- ND ug/L 04/01/06 -- -- -- -- -- ug/L 10/01/06 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- - -- -- -- ND u9 04/12/07 -- -- -- -- ND ND ND ND ND -- -- - -- -- -- ND ug/L 09/26/07 -- 0.041 J 0.045 J 0.045 J 0.04 J 0.051 J -- 0.047 J -- 0.047 J 0.037 J 0.036 -- -- - - -- -- ND ug/L 04/29/08 0.036 -- 5.5 ND ND ND ND ND -- ND ND ND ND ND ND -- - -- -- -- ND ug/L 12/01/08 0.036 -- 5.5 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 12/05/08 4.8 -- 5.5 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND ug/L 04/17/09 0.036 -- 5.5 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- - -- ND ug/L 10/16/09 0.11 -- 5.5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- - -- ND ug/L 04/28/10 0.11 -- 5.5 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 08/02/10 0.11 -- 5.5 __ __ __ __ __ __ __ -- -- -- -- -- -- -- ND ND ND ND ug/L 10/11/10 0.11 -- 5.5 ND ND ND ND ND - ND ND ND ND ND ND -- -- -- -- -- ND ug/L O5/09/11 0.11 -- 5.5 ND ND ND ND ND - ND ND ND ND ND ND -- -- -- - -- ND ug/L 10/12/11 0.11 -- 5.5 ND ND ND ND ND - ND ND ND ND ND ND 0.154 J ND ND ND ND ND ug/L 04/17/12 0.11 - 5.5 ND ND ND ND ND - ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/25/12 0.11 -- 5.5 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L O5/02/13 0.11 -- 5.5 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/24/13 0.11 -- 5.5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/24/14 0.11 - 5.5 ND ND ND ND ND - ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/06/14 0.11 - 5.5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.23 J ND ug/L 04/14/15 0.11 -- 5.5 ND ND ND ND ND ND ND ND ND ND ND -- ND ND ND ND ND ND ug/L 10/07/15 0.11 -- 5.5 -- -- ND ND ND ND ND ND ND ND ND -- ND ND -- ND -- ND ug/L 04/20/16 0.11 -- 5.5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 0.11 -- 5.5 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/25/17 0.11 -- 5.5 0.239 J 0.168 J ND 0.301 J 0.321 J ND 0.288 J 0.200 J 0.173 J 0.180 J ND ND 0.265 J 0.221 J 0.191 J 0.138 J 0.200 J ND ug/L 10/17/17 0.11 -- 5.5 0.184 J -- 0.327 J ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/16/18 0.11 -- 5.5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 0.55 5.00 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 04/12/19 1 0.55 5.00 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Vanadium ug/L 03/01/99 -- - 40 ND ND 62 ND ND - ND ND ND ND ND ND -- ND -- - -- ND IMAC=0.3 ug/L ug/L 09/01/99 -- - 40 ND ND ND ND ND - ND ND ND ND ND - -- - -- -- -- ND (No EPA MCL) ug/L 03/01/00 -- -- 40 ND ND 76 ND 46 -- ND ND ND ND ND ND -- ND - -- -- ND ug/L 09/01/00 -- -- 40 ND ND ND ND ND -- ND ND ND ND ND ND ug/L 03/01/01 -- -- 40 ND ND 44 ND ND -- ND ND ND ND ND ND -- ND - -- -- ND ug/L 09/01/01 - -- 40 ND ND ND ND ND -- ND ND ND ND ND -- -- -- - -- -- ND ug/L 03/01/02 - -- 40 ND ND ND ND ND -- ND ND ND ND ND ND -- ND - -- -- ND ug/L 09/01/02 - -- 40 ND ND ND ND ND -- ND ND ND ND ND -- -- -- - -- -- ND ug/L 04/15/03 - -- 40 ND ND ND ND ND -- ND ND ND ND ND -- -- -- - -- -- ND ug/L 10/01/03 -- -- 40 ND ND ND ND ND -- ND ND ND ND ND -- -- -- - -- -- ND ug/L 03/01/04 -- -- 40 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 40 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 05/01/05 -- -- 40 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 40 ND ND ND ND ND -- ND ND ND ND ND -- -- -- - -- -- ND ug/L 04/01/06 __ __ __ __ __ _ __ __ __ __ __ __ __ __ __ __ __ __ __ __ ND ug/L 10/01/06 -- -- 40 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND u9 04/12/07 -- -- -- - ND ND ND 14.5 J ND -- -- __ __ __ __ ND ug 09/26/07 -- -- -- - ND -- ND 14.2 B ND -- -- -- -- -- -- ND ug/L 04/29/08 1.0 -- 25 4.6 J 1.6 J ND ND ND -- 9.1 J 4.1 J 1.8 J 15.4 J ND ND -- -- - -- -- ND ug/L 12/01/08 1.4 -- 25 2.3 J ND ND ND ND -- ND ND ND 8.5 J ND ND - -- - -- -- ND ug/L 12/05/08 1.4 -- 25 __ __ _ __ __ __ _ __ __ _ __ __ ug/L 04/17/09 0.7 -- 25 4.0 J ND ND 2.2 J 6.4 J -- 6.8 J ND ND 10.0 J 2.1 J 50.1 - -- - -- -- ND ug/L 10/16/09 1.4 -- 25 3.92 J ND ND 4.06 J 3.27 J - 1.65 J 2.02 J 6.2 J 9.44 J 6.24 J __ __ __ _ __ __ ND ug/L 04/28/10 1.4 -- 25 3.65 J ND ND 3.66 J 4.29 J -- 5.76 J ND ND 8.15 J 2.02 J ND - -- - -- -- ND ug/L 08/02/10 1.4 -- 25 -- - - - -- - -- 9.3 J 3.15 J 2.14 J ND ug/L 10/11/10 1.4 -- 25 3.81 J ND ND 211 J 2.29 J -- 3.30 J 4.32 J ND 7.99 J 1.65 J 2.42 J - -- 18.1 J 56.6 2.65 ND ug/L 05/09/11 1.4 -- 25 3.84 J ND ND 3.11 J ND -- 6.65 J ND ND 9.54 J 1.80 J ND - -- - -- - ND ug/L 10/12/11 1.4 -- 25 3.23 J ND ND 2.61 J ND -- 5.40 J 2.33 J ND 7.82 J ND ND 8.23 J 9.48 3.91 J 12.8 J 2.57 J ND ug/L 04/17/12 1.4 -- 25 3.88 J ND ND 1.93 J 2.72 J - 3.04 J ND ND 8.14 J ND ND - -- - -- - ND ug/L 10/25/12 1.4 -- 25 4.23 J 1.40 ND 2.30 J 1.90 J -- 2.36 J 2.99 J 8.02 J ND 1.52 J ND ND 4.50 J 8.05 J 5.40 J 1.55 ND ug/L 05/02/13 1.4 -- 25 6.85 J ND ND 2.64 J 4.49 J -- 6.98 J 2.61 J ND 6.26 J 2.68 J 3.28 J ND ND 8.48 5.09 ND ND ug/L 09/24/13 1.4 -- 25 3.27 J ND ND 2.47 J 2.87 J 1.47 J 1.67 J ND ND 4.93 J ND 8.37 J 3.08 J 1.98 J 1.81 J 21.2 J ND ND ug/L 04/24/14 1.4 -- 25 3.87 J ND ND 2.65 J ND -- 3.81 J ND ND 4.90 J 2.18 J 7.66 J ND 1.71 J 3.93 J 6.14 J ND ND ug/L 10/06/14 1.4 -- 25 3.32 J ND ND 2.28 J ND 1.87 J ND ND ND 3.45 J 2.91 J 3.42 J ND 3.30 J 13.1 J 7.07 J ND ND ug/L 04/14/15 1.4 -- 25 3.28 J ND ND ND 6.41 J ND ND ND ND 2.05 J ND -- ND ND 2.22 J 14.0 J ND ND ug/L 10/07/15 1.4 -- 25 4.71 J -- ND 12.8 J ND 2.52 J 9.63 J 3.18 J ND 2.32 J 1.92 J 12.8 J ND ND 5.44 J 3.74 J 3.59 J ND ug/L 04/20/16 1.4 -- 25 4.66 J ND ND 3.04 J 4.60 J 2.76 J 2.82 J 1.75 J ND 3.07 J 3.75 J 14.9 J ND ND 2.25 J 5.60 J ND ND ug/L 09/26/16 1.4 -- 25 3.74 J -- ND 2.08 J ND 1.89 J ND ND ND 1.61 J 1.96 J 2.07 J ND ND 4.92 J ND ND ND ug/L 04/25/17 1.4 -- 25 6.06 J ND ND ND 1.48 J 2.17 J 12.5 J 6.09 J ND 1.75 J 2.76 J 13.9 J ND ND 12.4 J 12.0 J 7.32 J ND ug/L 10/17/17 1.4 -- 25 4.84 J -- 3.40 J 2.53 J ND 3.08 J 5.83 J 7.31 J ND ND 2.51 J 4.72 J 2.14 J 2.91 J 7.44 J 4.16 J ND ND ug/L 04/16/18 1.4 -- 25 3.67 J 2.04 J ND ND ND 2.83 J 5.83 J ND ND ND 2.15 J 5.90 J ND ND 4.33 J 2.44 J 1.96 J ND ug/L 10/16/18 1.4 10.0 -- 4.20 J -- ND ND 2.81 J 4.25 J 1.83 J 2.11 J ND ND ND 3.93 J 5.52 J 5.28 J 5.17 J 1.68 J ND ND u /L 04/12/19 1.4 10.0 5.22 J ND ND ND 2.08 J 3.54 J 4.30 J ND ND ND 3.21 J 5.77 J ND 1.74 J 2.15 J 2.62 J ND ND 1668421.105 r> GOLFER 7 of 24 August 2019 TABLE4 Smmary of Grondwater Monitoring Resits Detected Constitents White Street Landfill - Phase 11, Permit No. 41-03 Greensboro, North Carolina Method Practical SWS Assessment Reporting Sample Upgradient Monitoring Wells Compliance Downgraient Monitoring Wells Monitoring Sentinel Monitoring Wells Detected Monitoring Constitent Units Date Detection Quantitation Reporting Well Limit Limit Limit Blanks MW-13 MW-14 II-1 II-2 II-3 114A W5 II-6 II-7 II-7B II$ II-12 II-3B II-9 SMW-1 SMW-3 SMW4 Zinc ug/L 03/01/99 -- -- 50 ND ND 62 ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND NC 2L = 1000 ug/L ug/L 09/01/99 - -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND EPA MCL = 5000 ug/L ug/L 03/01/00 - -- 50 ND ND 16 ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 - -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 - -- 50 ND ND 52 ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L O5/01/05 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/01/06 -- -- -- -- -- -- __ ug/L 10/01/06 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- - -- ND ug/L 04/12/07 -- -- -- 2.2 J ND ND ND 3.0 J -- ND ND ND ND ND ND ug/L 09/26/07 -- -- -- 2.5 J ND ND 1.3 J 2.1 J -- 69.7 - 2.3 J ND 1.0 -- -- -- - -- ND ug/L 04/29/08 1.0 -- 10 8.7 J 1.3 J ND ND 2.5 J -- 2.5 J 30 ND ND ND 3.5 J -- -- -- -- -- ND ug/L 12/01/08 3.8 -- 10 7.8 J ND ND ND ND -- ND ND ND ND ND 20.5 -- -- -- - -- ND ug/L 04/17/09 3.4 -- 10 9.4 J ND 5.1 J ND 7.1 J -- 4.2 J 5.7 J 3.7 J ND 4.7 J 37.5 -- -- -- - -- ND ug/L 10/16/09 3.8 -- 10 7.66 J ND ND 8.88 J 7.31 J -- ND 4.87 J 60.4 ND 4.03 J - -- -- -- - -- ND ug/L 04/28/10 3.8 -- 10 7.20 J ND 5.77 J ND 6.28 J -- ND 4.08 J 6.49 J ND ND ND -- -- -- -- -- ND -- -- -- -- 96.8 5.90 J 7.60 J ND ug/L 10/11/10 3.8 -- 10 ND 816 J ND ND ND - ND ND ND ND ND ND -- - 409 35.4 8.07 ND ug/L 05/09/11 3.8 -- 10 4.92 J 7.58 J 5.52 J ND ND - ND ND ND ND ND ND -- - -- - -- ND ug/L 10/12/11 3.8 -- 10 ND ND 5.46 J ND ND - ND ND ND ND ND ND 5.78 J 62.0 260 9.04 J 8.37 J ND ug/L 04/17/12 3.8 -- 10 4.48 J ND 3.95 J ND 5.80 J -- ND ND ND ND ND ND -- - -- -- -- ND ug/L 10/25/12 3.8 -- 10 11.1 ND 5.48 J ND ND -- ND 8.58 J ND ND 4.57 J 4.94 J 3.91 J 29.8 272 4.39 J 5.97 ND ug/L 05/02/13 3.8 -- 10 7.37 J 4.11 J ND ND 4.31 J -- 4.60 J ND ND ND ND ND ND 23.3 676 5.54 4.19 ND ug/L 09/24/13 3.8 -- 10 ND ND ND ND 5.36 J 4.03 J 4.85 J ND ND ND ND 10.2 ND 20.0 438 11.8 7.82 J ND ug/L 04/24/14 3.8 -- 10 ND ND 4.33 J ND ND - 11.4 ND ND ND ND 5.56 J 8.42 J 350 635 9.92 J 4.21 J ND ug/L 10/06/14 3.8 -- 10 ND 7.21 J 16.5 4.05 J 4.79 J 4.79 J 10.7 ND 4.39 J ND 4.60 J 5.60 J 4.52 J 48.5 58.2 6.33 J 12.3 ND ug/L 04/14/15 3.8 -- 10 12.3 9.44 J ND ND 8.67 J 6.39 J 31.1 4.49 J 6.85 J 3.80 3.80 - ND 26.5 529 11.2 4.38 J ND ug/L 10/07/15 3.8 -- 10 4.19 J - ND 7.21 J ND ND 7.74 J 5.12 J ND ND ND 7.21 J ND 20.2 280 ND 12.1 ND ug/L 04/20/16 4.4 -- 10 15.1 ND ND ND ND ND 13.7 9.56 J ND ND ND 9.19 J ND 350 588 39.2 ND ND ug/L 09/26/16 4.4 -- 10 4.65 J - ND ND 5.23 J ND 7.93 J 8.75 J ND 6.36 J 14.8 ND ND 58.0 52.6 ND 5.91 J ND ug/L 04/25/17 4.4 -- 10 5.06 J 5.09 J ND ND 5.84 J ND 11.0 8.99 J ND ND ND 7.84 J ND 40.6 730 ND 5.31 J ND ug/L 10/17/17 4.4 -- 10 4.64 J -- ND ND ND ND 4.74 J 6.53 J ND ND ND ND 5.21 J 24.4 67.5 ND 7.07 J ND ug/L 04/16/18 4.4 -- 10 6.74 J 5.94 J 4.67 J ND ND ND 11.8 4.98 J ND ND ND 6.46 J ND 48.3 388 ND ND ND ug/L 10/16/18 4.4 10.0 - 6.31 J - 28.2 ND 5.80 J ND 11.7 7.28 J ND ND ND ND 14.0 61.1 479 7.96 J ND ND u /L 04/12/19 1 4.4 10.0 13.0 ND 9.25 J ND 15.8 ND 16.5 68.9 ND ND ND 4.53 J 5.37 J 78.1 899 ND ND ND Acetone ug/L 03/01/99 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND NC 2L = 6000 ug/L ug/L 09/01/99 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND (No EPA MCL) ug/L 03/01/00 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND -- -- -- - -- -- ND ug/L 03/01/02 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND ND -- ND - -- -- ND ug/L 09/01/02 - -- 100 ND ND ND ND ND -- ND ND ND ND ND -- -- -- - -- -- ND ug/L 04/15/03 - -- 100 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 - -- 100 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 - -- 100 ND ND ND ND ND -- ND ND ND ND ND ND -- ND - -- -- ND ug/L 09/01/04 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND -- -- -- - -- -- ND ug/L 05/01/05 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/01/06 -- -- -- -- -- -- __ ug/L 10/01/06 -- -- 100 ND ND ND ND ND - ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/12/07 -- -- -- ND ND ND ND ND -- ND ND ND ND ND ND ug/L 09/26/07 - -- -- 3.8 B 5.5 B 18 B 1.6 J ND -- 12 J -- ND ND 11 B -- -- -- -- -- -- ND ug/L 04/29/08 0.62 -- 100 0.62 5.9 J 5.5 J ND ND -- 3.4 J 4.8 J ND ND ND 7.4 J -- -- -- -- -- ND ug/L 12/01/08 1.5 -- 100 ND ND ND 7.3 J ND -- ND 10 J ND ND ND 6.1 J ND ug/L 10/16/09 1.5 -- 100 ND ND ND ND ND -- ND 20 J 2.4 J ND ND -- -- -- -- -- -- ND ug/L 04/28/10 1.5 -- 100 ND ND ND ND ND-- ND 5.4 J 2.0 J ND ND ND - -- -- -- -- ND ug/L 08/02/10 1.5 -- 100 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND 3 J ND ND ug/L 10/11/10 1.5 -- 100 ND ND ND 5.2 J ND -- ND ND ND ND ND ND -- -- ND ND ND ND ug/L 05/09/11 1.2 -- 100 ND ND ND ND ND -- ND ND ND ND ND 16 J ND ug/L 10/12/11 1.2 -- 100 ND ND ND ND ND -- ND ND ND ND ND 5.1 J ND ND ND ND ND ND ug/L 04/17/12 1.2 -- 100 ND ND ND 5.8 J ND - ND ND ND ND ND ND - ND ND ND ND ND ug/L 10/25/12 1.2 -- 100 ND ND 3.3 J ND ND -- ND 9.8 J ND ND ND 5.4 J ND ND ND ND ND ND ug/L 05/02/13 1.2 -- 100 ND ND ND ND ND -- ND ND ND ND ND 28 J ND ND ND ND ND ND ug/L 09/24/13 1.2 -- 100 ND ND 4 J ND ND 4.7 J ND 7.1 J ND 2.2 J ND ND ND ND ND ND ND ND ug/L 04/24/14 1.2 -- 100 ND ND ND ND ND -- ND ND ND ND ND 36 J ND ND ND ND ND ND ug/L 10/06/14 1.2 -- 100 ND ND ND ND ND ND ND 16 J ND ND ND ND ND ND ND ND ND ND ug/L 04/14/15 1.2 -- 100 ND ND ND ND ND ND ND ND ND ND ND -- ND ND ND ND ND ND ug/L 10/07/15 1.2 -- 100 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/16 1.2 -- 100 ND 1.2 ND ND ND ND ND ND ND ND ND ND ND ND ND ND 1.2 ND ug/L 09/26/16 10 - 100 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/25/17 10 -- 100 16 B 20 B 19 B 21 B 12 B 33 B 14 B ND 11 B 11 B 28 B 33 J 16 B 15 B 20 B 14 B ND 28 J ug/L 10/17/17 10 -- 100 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/16/18 10 -- 100 ND ND ND ND ND ND ND 44 J ND ND ND 14 J ND ND ND ND ND ND ug/L 10/16/18 10 20 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 04/12/19 1 10 20 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 1668421.105 r> GOLFER 8 of 24 August 2019 TABLE4 Smmary of Grondwater Monitoring Resits Detected Constitents White Street Landfill - Phase 11, Permit No. 41-03 Greensboro, North Carolina Method Practical SWS Assessment Reporting Sample Upgradient Monitoring Wells Compliance Downgraient Monitoring Wells Monitoring Sentinel Monitoring Wells Detected Monitoring Constitent Units Date Detection Quantitation Reporting Well Limit Limit Limit Blanks MW-13 MW-14 II-1 II-2 113 114A 115 II-6 II-7 II-7B 11-8 II-12 II-3B II-9 SMW-1 SMW3 SMW4 Benzene ug/L 03/01/99 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND NC 2L = 1 ug/L ug/L 09/01/99 - -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND EPA MCL=5 ug/L ug/L 03/01/00 - -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L O5/01/05 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/01/06 -- -- -- -- -- -- __ ug/L 10/01/06 -- -- 5 ND ND ND ND ND - ND ND ND ND ND -- -- -- -- -- -- ND u9 04/12/07 -- -- -- -- ND ND ND ND ND -- -- -- -- -- -- ND u9 09/26/07 -- -- -- ND ND 0.77. -- -- ND ND ND -- -- -- -- ND ug/L 04/29/08 0.2 -- 1 ND ND ND 1.8 ND -- ND ND ND ND ND ND -- -- - -- -- ND ug/L 12/01/08 0.2 -- 1 ND ND 1.1 1.6 0.52 1 -- ND 2.9 ND ND ND ND -- -- -- -- -- ND ug/L 02/13/09 0.2 -- 1 -- -- -- -- -- -- -- 1.8 -- -- -- -- -- -- -- -- -- ND ug/L 02/13/09 0.2 -- 1 -- -- -- -- -- _ -- _ -- ug/L 04/17/09 0.2 -- 1 ND ND 0.7 1 1.4 ND - ND ND 0.42 1 ND ND ND -- - -- - -- ND ug/L 10/16/09 0.2 -- 1 ND ND 1.4 1.9 0.7 1 -- ND 1.7 ND ND ND -- -- -- _ -- -- ND ug/L 04/28/10 0.05 -- 1 ND ND 1.1 1.2 0.80 1 -- ND 1.6 0.64 1 ND ND ND -- -- -- -- -- ND u9 08/02/10 � -- -- ND 1.4 0.88 1 -- -- -- - ND ND -- - -- ND ND ND ND ND ug/L 10/11/10 0.2 -- 1 ND ND 1.2 0.67 1 0.96 1 - ND 2.2 ND ND ND ND -- - ND ND ND ND ug/L 05/09/11 0.68 -- 1 ND ND 0.78 1 ND ND - ND ND ND ND ND ND -- - -- - -- ND ug/L 10/12/11 0.68 -- 1 ND ND 0.98 1 ND ND - ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/17/12 0.15 -- 1 ND ND 0.91 J ND 1.1 -- ND ND ND ND ND ND -- ND ND ND ND ND ug/L 10/25/12 0.15 -- 1 ND ND 1.5 ND 1.4 -- ND 2.3 ND ND ND ND ND ND ND ND ND ND ug/L O5/02/13 0.15 -- 1 ND ND 0.45 1 ND 1.3 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/24/13 0.15 -- 1 ND ND 1.1 ND 1.3 0.62 1 ND 1.6 ND ND ND ND ND ND ND ND ND ND ug/L 04/24/14 0.15 -- 1 ND ND ND ND 1.0 - ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/06/14 0.15 -- 1 ND ND 1.1 ND 1.1 0.41 1 ND 2.0 ND ND ND ND ND ND ND ND ND ND ug/L 04/14/15 0.15 -- 1 ND ND 0.73 1 ND 1.5 0.67 1 ND ND ND ND ND -- ND ND ND ND ND ND ug/L 10/07/15 0.15 -- 1 ND -- 1.2 ND 1.3 0.73 1 ND 1.4 ND ND ND ND ND ND ND ND ND ND ug/L 04/20/16 0.15 -- 1 ND ND 0.78 1 ND 1.4 0.57 1 ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 0.15 -- 1 ND - ND ND ND 0.67 1 ND 2.1 ND ND ND ND ND ND ND ND ND ND ug/L 04/25/17 0.15 -- 1 ND ND ND ND 1.4 0.78 1 ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 0.15 -- 1 ND -- 1.8 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/16/18 0.15 -- 1 ND ND ND ND 1.2 0.67 1 ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 0.15 1.0 -- ND - ND ND 1.1 0.60 1 ND 0.69 1 ND ND ND ND ND ND ND ND ND ND u /L 04/12/19 0.15 1.0 ND ND ND ND 0.93 1 0.45 1 ND ND ND ND ND ND ND ND ND ND ND ND Carbon Tetrachloride ug/L 03/01/99 -- - 10 ND ND ND ND ND - ND ND ND ND ND ND -- ND - -- -- ND NC 2L = 0.3 ug/L ug/L 09/01/99 - -- 10 ND ND ND ND ND -- ND ND ND ND ND -- - -- - -- -- ND EPA MCL=5 ug/L ug/L 03/01/00 - -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 - -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 - -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- - -- -- ND ug/L 04/15/03 -- - 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- - 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 05/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND - -- -- ND ug/L 10/01/05 - - 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- - -- -- ND ug/L 04/01/06 - -- - -- -- - -- __ ug/L 10/01/06 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/12/07 -- -- -- ND ND ND ND ND -- ND ND ND ND ND ND ug/L 09/26/07 -- -- -- ND ND ND ND ND -- ND -- ND ND ND ND ug/L 04/29/08 0.35 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- - -- -- ND ug/L 12/01/08 0.38 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ug/L 04/17/09 0.38 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/16/09 0.38 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ug/L 04/28/10 0.38 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- - -- ND ug/L 08/02/10 0.38 -- 1 - -- - -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ug/L 10/11/10 0.38 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- ND ND ND ND ug/L 05/09/11 0.69 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ug/L 10/12/11 0.69 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/17/12 0.17 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- ND ND ND ND ND ug/L 10/25/12 0.17 -- 1 ND ND ND ND ND - ND ND ND ND ND ND ND ND ND ND ND ND ug/L 05/02/13 0.17 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/24/13 0.17 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/24/14 0.17 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/06/14 0.17 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/14/15 0.17 -- 1 ND ND ND ND ND ND ND ND ND ND ND - ND ND ND ND ND ND ug/L 10/07/15 0.17 -- 1 ND -- 0.47 J ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/16 0.17 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 0.17 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/25/17 0.17 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 0.17 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/16/18 0.17 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 0.17 1.0 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 1 04/12/19 1 0.17 1 1.0 ND ND I ND ND ND ND ND ND ND ND ND ND I ND I ND ND ND ND I ND 1668421.105 r> GOLFER 9 of 24 August 2019 TABLE4 Smmary of Grondwater Monitoring Resits Detected Constitents White Street Landfill - Phase 11, Permit No. 41-03 Greensboro, North Carolina Method Practical SWS Assessment Reporting Sample Upgradient Monitoring Wells Compliance Downgraient Monitoring Wells Monitoring Sentinel Monitoring Wells Detected Monitoring Constitent Units Date Detection Quantitation Reporting Well Limit Limit Limit Blanks MW-13 MW-14 II-1 II-2 113 114A 115 II-6 II-7 II-7B 11-8 II-12 II-3B II-9 SMW-1 SMW3 SMW4 Chlorobenzene ug/L 03/01/99 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND NC 2L = 50 ug/L ug/L 09/01/99 - -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND EPA MCL = 100 ug/L ug/L 03/01/00 - -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 03/01/04 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L O5/01/05 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/06 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/12/07 -- -- -- ND ND ND ND ND -- ND 2.5 J ND ND ND ND ug/L 09/26/07 -- -- -- ND ND 1.1 J 0.49 J ND -- 0.50 J -- ND ND 2.0 J ND ug/L 04/29/08 0.27 -- 3 ND ND ND 0.52 J ND -- ND ND ND ND 2.2 J ND -- -- -- -- -- ND ug/L 12/01/08 0.27 -- 3 ND ND 1.8 J 0.54 J ND -- ND 4.7 ND ND 1.9 J ND -- -- -- -- -- ND ug/L 04/17/09 0.27 -- 3 ND ND 1.0 J 0.49 J ND -- ND ND ND ND 2.0 J ND -- -- -- -- -- ND ug/L 10/16/09 0.27 -- 3 ND ND 2.9 J 0.78 J ND -- ND 5.0 ND ND 2.1 J -- -- -- -- -- -- ND ug/L 04/29/10 0.069 -- 3 -- ND 1.4 J 0.48 J -- -- -- - ND ND -- -- -- ND -- - -- ND ug/L 08/02/10 0.27 -- 3 - -- -- - -- -- -- - - -- - -- -- -- ND ND ND ND ug/L 10/11/10 0.27 -- 3 ND ND 3.2 0.74 J ND -- ND 7.4 ND ND 2.8 J ND -- -- ND ND ND ND ug/L 05/09/11 0.74 -- 3 ND ND 1.2 J 0.78 J ND -- ND ND ND ND 2.3 J ND -- -- -- -- -- ND ug/L 10/12/11 0.74 -- 3 ND ND ND 0.99 J ND -- ND ND ND ND 2.3 J ND ND ND ND ND ND ND ug/L 04/17/12 0.17 -- 3 ND ND 2.0 J 0.51 J ND -- ND 0.71 J ND ND 2.5 J ND -- ND ND ND ND ND ug/L 10/25/12 0.17 -- 3 ND ND 3.5 0.74 J ND - ND 5.7 ND ND 1.8 J ND ND ND ND ND ND ND ug/L 05/02/13 0.17 -- 3 ND ND 1.4 J 0.88 J ND -- ND ND ND ND 2.4 J ND ND ND ND ND ND ND ug/L 09/24/13 0.17 -- 3 ND ND 2.9 J 0.89 J ND 2.0 J ND 4.3 ND ND 2.0 J ND ND 0.52 J ND ND ND ND ug/L 04/24/14 0.17 -- 3 ND ND 3.0 1.0 J ND -- ND ND ND ND 2.2 J ND ND ND ND ND ND ND ug/L 10/06/14 0.17 -- 3 ND ND 4.3 0.72 J 0.45 J 1.5 J ND 5.8 ND ND 2.2 J ND ND 0.62 J ND ND ND ND ug/L 04/14/15 0.17 -- 3 ND ND 2.0 J 0.63 J ND 2.4 J ND ND ND ND 1.7 J -- ND ND ND ND ND ND ug/L 10/07/15 0.17 -- 3 ND -- 3.4 ND ND 2.8 J ND 3.6 ND ND 1.9 J ND ND 0.60 J ND ND ND ND ug/L 04/20/16 0.17 -- 3 ND ND 3.3 0.87 J ND 2.5 J ND 0.73 J ND ND 2.0 J ND ND ND ND ND ND ND ug/L 09/26/16 0.17 -- 3 ND -- 4.3 ND ND 2.7 J ND 6.4 ND ND ND ND ND 0.40 J ND ND ND ND ug/L 04/25/17 0.17 -- 3 ND ND 2.0 J 0.87 J ND 3.4 ND ND ND ND 2.2 J ND ND 0.45 J ND ND ND ND ug/L 10/17/17 0.17 - 3 ND - ND 1.2 J ND 3.8 ND 7.5 ND ND 2.5 J ND ND 0.60 J ND ND ND ND ug/L 04/16/18 0.17 -- 3 ND ND 1.9 J 0.97 J ND 3.4 ND 0.82 J ND ND 1.8 J ND ND ND ND ND ND ND ug/L 10/16/18 0.17 1.0 -- ND -- 1.1 0.85 J ND 3.6 ND 2.5 ND ND 1.9 ND ND ND ND ND ND ND u /L 04/12/19 1 0.17 1.0 ND ND 2.9 0.87 J ND 3.5 ND ND ND ND 1.9 ND ND ND ND ND ND ND Chloroethane ug/L 03/01/99 -- -- 10 ND ND ND ND ND - ND ND ND ND ND ND -- ND -- - -- ND NC 2L = 3000 ug/L ug/L 09/01/99 -- - 10 ND ND 33 ND ND - ND ND ND ND ND - -- -- - -- -- ND (No EPA MCL) ug/L 03/01/00 -- -- 10 ND ND 16 ND ND -- ND ND ND ND ND ND -- ND - -- -- ND ug/L 09/01/00 - -- 10 ND ND 22 ND ND -- ND ND ND ND ND -- -- -- - -- -- ND ug/L 03/01/01 - -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND - -- -- ND ug/L 09/01/01 - -- 10 ND ND 24 ND ND -- ND ND ND ND ND -- -- -- - -- -- ND ug/L 03/01/02 - -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND - -- -- ND ug/L 09/01/02 - -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- - -- -- ND ug/L 04/15/03 - - 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- - -- -- ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- - -- -- ND ug/L 03/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 05/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- - 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- - -- -- ND ug/L 04/01/06 -- -- -- -- -- - ug/L 10/01/06 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/12/07 -- -- -- ND ND ND ND ND -- ND ND ND ND ND ND ug/L 09/26/07 -- -- -- ND ND 2.8 J ND ND -- 1.6 J -- ND ND ND -- -- -- -- -- -- ND ug/L 04/29/08 0.3 -- 10 ND ND ND ND 1.8 J -- ND ND ND ND 1.6 J ND -- -- - -- -- ND ug/L 12/01/08 0.3 -- 10 ND ND 3.1 J ND 2.8 J -- ND ND ND ND 1.6 J ND ND ug/L 04/17/09 0.3 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/16/09 0.3 -- 10 ND ND 1.7 J 0.61 J ND -- ND 0.3 ND ND 0.3 ND ug/L 04/28/10 0.18 -- 10 ND ND 0.95 J ND 1.6 J -- ND ND ND ND 0.70 J ND -- -- -- - -- ND ug/L 08/02/10 0.3 -- 10 -- ND 1.5 J ND -- - -- - ND ND -- -- --0.46 1 ND ND ND ND ug/L 10/11/10 0.3 -- 10 ND ND 1.6 J 0.57 J 1.6 J -- ND ND ND ND 0.8 J ND -- -- ND ND ND ND ug/L 05/09/11 0.75 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND ND ug/L 10/12/11 0.75 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/17/12 0.23 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND ND ND ND ND ug/L 10/25/12 0.23 -- 10 ND ND ND ND ND - ND ND ND ND ND ND ND ND ND ND ND ND ug/L 05/02/13 0.23 -- 10 ND ND ND ND 2.1 J -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/24/13 0.23 -- 10 ND ND ND 0.47 J ND ND ND ND ND ND ND ND ND 0.81 J ND ND ND ND ug/L 04/24/14 0.23 -- 10 ND ND ND ND 1.8 J -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/06/14 0.23 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/14/15 0.23 -- 10 ND ND ND ND ND ND ND ND ND ND ND - ND ND ND ND ND ND ug/L 10/07/15 0.23 - 10 ND -- 0.94 J ND 1.5 J 1.2 J ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/16 0.23 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 0.23 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/25/17 0.23 -- 10 ND ND ND ND 0.98 J ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 0.23 - 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/16/18 0.23 - 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 0.23 1.0 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 1 04/12/19 1 0.23 1 1.0 ND ND I ND ND ND ND ND ND ND ND ND ND I ND I ND ND ND ND I ND 1668421.105 r> GOLFER 10 of 24 August 2019 TABLE4 Smmary of Grondwater Monitoring Resits Detected Constitents White Street Landfill - Phase 11, Permit No. 41-03 Greensboro, North Carolina Method Practical SWS Assessment Reporting Sample Upgradient Monitoring Wells Compliance Downgraient Monitoring Wells Monitoring Sentinel Monitoring Wells Detected Monitoring Constitent Units Date Detection Quantitation Reporting Well Limit Limit Limit Blanks MW-13 MW-14 II-1 II-2 113 114A 115 II-6 II-7 II-7B 11-8 II-12 II-3B II-9 SMW-1 SMW3 SMW4 Chloroform ug/L 03/01/99 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- -- NC 2L = 70 ug/L ug/L 09/01/99 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- EPA MCL=80 ug/L ug/L 03/01/00 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- -- ug/L 09/01/00 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 03/01/01 -- -- 5 ND ND ND ND ND - ND ND ND ND ND ND -- ND -- -- -- -- ug/L 09/01/01 -- -- 5 ND ND ND ND ND - ND ND ND ND ND - -- - -- -- -- -- ug/L 03/01/02 -- -- 5 ND ND ND ND ND - ND ND ND ND ND ND -- ND -- -- -- -- ug/L 09/01/02 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 04/15/03 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/03 -- -- 5 ND ND ND ND ND - ND ND ND ND ND - -- - -- -- -- -- ug/L 03/01/04 -- - 5 ND ND ND ND ND - ND ND ND ND ND ND -- ND -- -- -- -- ug/L 09/01/04 -- - 5 ND ND ND ND ND - ND ND ND ND ND - -- - -- -- -- -- ug/L 05/01/05 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- -- ug/L 10/01/05 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 04/01/06 -- -- -- -- -- -- __ ug/L 10/01/06 -- -- 5 ND ND ND ND ND - ND ND ND ND ND - -- -- -- -- -- - ug/L 04/12/07 -- -- -- ND ND ND ND ND - ND ND ND ND ND ND ug/L 09/26/07 -- -- -- ND ND ND ND ND - ND - ND ND ND - -- -- - -- -- ND ug/L 04/29/08 0.2 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 12/01/08 0.2 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 04/17/09 0.2 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/16/09 0.2 -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- - -- ND ug/L 04/28/10 0.2 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- - -- - ug/L 08/02/10 0.2 -- 5 - -- -- - -- -- -- -- -- -- -- -- -- -- ND ND ND ND ug/L 10/11/10 0.2 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- -- ND ND ND ND ug/L 05/09/11 0.7 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/12/11 0.7 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/17/12 0.18 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND ND ND ND ND ug/L 10/25/12 0.18 -- 5 ND ND ND ND ND - ND ND ND ND ND ND ND ND ND ND ND ND ug/L 05/02/13 0.18 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/24/13 0.18 -- 5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/24/14 0.18 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/06/14 0.18 -- 5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/14/15 0.18 -- 5 ND ND ND ND ND ND ND ND ND ND ND - ND ND ND ND ND ND ug/L 10/07/15 0.18 -- 5 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/16 0.18 -- 5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 0.18 -- 5 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/25/17 0.18 -- 5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 0.18 - 5 ND - ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/16/18 0.18 - 5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 0.18 1.0 - ND - ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 04/12/19 1 0.18 1.0 ND 0.67 J ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 1,2-Dichlorobenzene ug/L 03/01/99 -- - 5 ND ND ND ND ND - ND ND ND ND ND ND -- ND -- - -- ND NC 2L = 20 ug/L ug/L 09/01/99 -- - 5 ND ND ND ND ND - ND ND ND ND ND - -- - -- - -- ND EPA MCL=600 ug/L ug/L 03/01/00 -- - 5 ND ND ND ND ND - ND ND ND ND ND ND -- ND -- - -- ND ug/L 09/01/00 -- - 5 ND ND ND ND ND - ND ND ND ND ND - -- - -- - - ND ug/L 03/01/01 - -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND - -- -- ND ug/L 09/01/01 - -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- - -- -- ND ug/L 03/01/02 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- - -- -- ND ug/L 03/01/04 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND - -- -- ND ug/L 03/01/04 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 05/01/05 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/01/06 -- -- -- -- -- - ug/L 10/01/06 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/12/07 -- -- -- ND ND 0.32 J ND ND -- ND 0.41 J ND ND ND ND ug/L 09/26/07 -- -- -- ND ND 0.48 J ND ND -- ND -- ND ND ND ND ug/L 04/29/08 0.27 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 12/01/08 0.27 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- -- - -- -- ND ug/L 04/17/09 0.27 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/16/09 0.27 -- 5 ND ND ND ND ND -- ND 0.47 J ND ND ND -- -- -- -- -- -- ND ug/L 04/28/10 0.052 -- 5 ND ND ND ND ND -- ND 0.43 J ND ND ND ND -- -- -- -- -- ND ug/L 08/02/10 0.27 -- 5 -- -- -- -- -- - -- - -- - -- - -- -- ND ND ND ND ug/L 10/11/10 0.27 -- 5 ND ND 0.43 J ND ND - ND 0.51 J ND ND ND ND -- - ND ND ND ND ug/L 05/09/11 0.11 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND - -- - -- -- ND ug/L 10/12/11 0.11 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/17/12 0.19 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND ND ND ND ND ug/L 10/25/12 0.19 -- 5 ND ND 0.41 J ND ND -- ND 0.5 J ND ND ND ND ND ND ND ND ND ND ug/L 05/02/13 0.19 -- 5 ND ND ND ND ND - ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/24/13 0.19 -- 5 ND ND ND ND ND ND ND 0.5 J ND ND ND ND ND ND ND ND ND ND ug/L 04/24/14 0.19 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/06/14 0.19 -- 5 ND ND 0.61 J ND ND ND ND 0.46 J ND ND ND ND ND ND ND ND ND ND ug/L 04/14/15 0.19 -- 5 ND ND ND ND ND ND ND ND ND ND ND -- ND ND ND ND ND ND ug/L 10/07/15 0.19 -- 5 ND -- 0.46 J ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/16 0.19 -- 5 ND ND 0.55 J ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 0.19 -- 5 ND -- 0.57 1 ND ND ND ND 0.55 J ND ND ND ND ND ND ND ND ND ND ug/L 04/25/17 0.19 -- 5 ND ND 0.44 J ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 0.19 -- 5 ND -- 1.0 J ND ND ND ND 0.72 J ND ND ND ND ND ND ND ND ND ND ug/L 04/16/18 0.19 - 5 ND ND 0.41 J ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 0.19 1.0 -- ND -- 0.57 J ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 1 04/12/19 1 0.19 1 1.0 ND ND 1 0.55 1 ND ND ND ND ND ND ND ND ND I ND I ND ND ND ND I ND 1668421.105 r> GOLFER 11 of 24 August 2019 TABLE4 Smmary of Grondwater Monitoring Resits Detected Constitents White Street Landfill - Phase 11, Permit No. 41-03 Greensboro, North Carolina Method Practical SWS Assessment Reporting Sample Upgradient Monitoring Wells Compliance Downgraient Monitoring Wells Monitoring Sentinel Monitoring Wells Detected Monitoring Constitent Units Date Detection Quantitation Reporting Well Limit Limit Limit Blanks MW-13 MW-14 II-1 II-2 113 114A 115 II-6 II-7 II-7B 11-8 II-12 II-3B II-9 SMW-1 SMW3 SMW4 1,4-Dichlorobenzene ug/L 03/01/99 -- -- 5 ND ND ND ND ND -- ND 6.4 ND ND ND ND -- ND -- -- -- ND NC 2L = 6 ug/L ug/L 09/01/99 - -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND EPA MCL=75 ug/L ug/L 03/01/00 - -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 03/01/04 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- - -- ND ug/L 09/01/04 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- - -- -- ND ug/L 05/01/05 -- -- 5 ND ND ND ND ND -- ND 5.0 ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 5 ND ND 6.0 ND ND -- ND 7.0 ND ND ND -- -- -- -- -- -- ND ug/L 04/01/06 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND ug/L 04/12/07 -- -- -- ND ND ND ND ND -- ND 3.3 ND ND 0.89 J -- -- -- -- -- -- ND u9 09/26/07 - -- -- -- 0.93 J -- ND ND 0.90 J -- -- -- - -- -- ND ug/L 04/29/08 0.20 -- 1 ND ND ND ND ND -- ND ND ND ND 0.73 J ND -- -- -- -- -- ND ug/L 12/01/08 0.38 -- 1 ND ND ND ND ND -- ND ND ND ND 0.59 J ND -- -- -- -- -- ND ug/L 02/13/09 0.38 -- 1 -- -- -- -- -- -- -- 4.1 -- -- -- -- -- -- -- -- -- ND ug/L 04/17/09 0.38 -- 1 ND ND ND ND ND - ND ND ND ND ND ND -- - -- -- -- ND ug/L 10/16/09 0.38 -- 1 ND ND 6.9 0.67 J ND -- ND 3.8 ND ND ND ND ug/L 04/28/10 0.10 -- 1 ND ND 6.5 0.61 J ND -- ND 3.4 0.53 J ND 0.55 J ND -- -- _ -- -- ND ug/L 08/02/10 0.38 -- 1 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ug/L 10/11/10 0.38 -- 1 ND ND 7.5 0.54 J ND - 0.5 J 4.7 ND ND 0.56 J ND -- - ND ND ND ND ug/L 05/09/11 0.79 -- 1 ND ND 4.0 0.87 J ND - ND ND ND ND ND ND -- - -- - -- ND ug/L 10/12/11 0.79 -- 1 ND ND ND ND ND - ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/17/12 0.19 -- 1 ND ND 4.6 0.55 J ND -- ND 0.51 J 0.42 J ND 0.52 J ND -- ND ND ND ND ND ug/L 10/25/12 0.19 -- 1 ND ND 7.7 0.94 J ND - ND 4.8 ND ND 0.44 J ND ND ND ND ND ND ND ug/L O5/02/13 0.19 - 1 ND ND 3.4 1.2 ND - ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/24/13 0.19 - 1 ND ND 4.3 1.5 ND 0.87 J ND 3.2 ND ND ND ND ND ND ND ND ND ND ug/L 04/24/14 0.19 - 1 ND ND 5.6 2.0 ND - ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/06/14 0.19 -- 1 ND ND 8.2 1.3 ND 0.96 J ND 3.8 ND ND ND ND ND ND ND ND ND ND ug/L 04/14/15 0.19 -- 1 ND ND ND ND ND ND ND ND ND ND ND -- ND ND ND ND ND ND ug/L 10/07/15 0.19 -- 1 ND -- 7.6 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/16 0.19 -- 1 ND ND 7.9 2.5 ND 1.0 ND 0.72 J ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 0.19 -- 1 ND -- ND 2.2 ND 1.2 ND 4.3 ND ND ND ND ND ND ND ND ND ND ug/L 04/25/17 0.19 -- 1 ND ND 5.3 3.0 0.55 J 1.6 ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 0.19 -- 1 ND -- 16 3.3 0.57 J 1.4 ND 5.9 ND ND ND ND ND 0.40 J ND ND ND ND ug/L 04/16/18 0.19 -- 1 ND ND 6.5 3.1 0.53 J 1.5 ND 0.81 J ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 0.19 1.0 -- ND - 9.7 3.2 0.48 J 1.6 ND 2.3 ND ND ND ND ND ND ND ND ND ND u /L 04/12/19 0.19 1.0 ND ND 7.9 3.3 ND 1.1 ND ND ND ND ND ND ND ND ND ND ND ND Dichlorodifloromethane ug/L 03/01/99 -- - 5 ND ND ND ND ND - ND ND ND ND ND ND -- ND - -- - ND NC 2L = 1000 ug/L ug/L 09/01/99 - -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- - -- - ND (No EPA MCL) ug/L 03/01/00 - -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 5 ND ND ND 12 ND -- ND ND ND ND ND -- -- -- - -- -- ND ug/L 03/01/01 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 5 ND ND ND 5.8 ND -- ND ND ND ND ND -- -- -- - -- -- ND ug/L 03/01/02 - -- 5 ND ND ND 5.8 ND -- ND ND ND ND ND ND -- ND - -- -- ND ug/L 09/01/02 - -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- - -- -- ND ug/L 10/01/03 - -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- - -- -- ND ug/L 03/01/04 - -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 - -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 05/01/05 - -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 - -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- - -- -- ND ug/L 10/01/06 - -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- - -- -- ND u9 09/26/07 - -- -- .5 -- ND -- 0.45 1 ND ND -- -- -- - -- -- ND ug/L 12/01/08 0.38 -- 5 ND ND ND 0.70 J ND -- ND ND ND ND ND ND ND ug/L 10/16/09 0.38 -- 5 ND ND ND 0.99 J ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/11/10 0.38 -- 5 ND ND ND 0.50 J ND - ND ND ND ND ND ND -- -- - -- -- ND ug/L 10/12/11 0.56 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND ND ug/L 10/25/12 0.2 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 09/24/13 0.2 -- 5 ND ND ND ND 0.53 J ND ND ND ND ND ND ND -- -- -- - -- ND ug/L 10/06/14 0.2 -- 5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/15 0.2 -- 5 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 0.2 -- 5 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 0.2 -- 5 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 1 10/16/18 1 0.2 1 1 ND ND ND ND ND ND ND ND ND ND ND I ND I ND ND ND ND I ND 1668421.105 r> GOLFER 12 of 24 August 2019 TABLE4 Smmary of Grondwater Monitoring Resits Detected Constitents White Street Landfill - Phase II, Permit No. 41-03 Greensboro, North Carolina Method Practical SWS Assessment Reporting Sample Upgradient Monitoring Wells Compliance Downgraient Monitoring Wells Monitoring Sentinel Monitoring Wells Detected Monitoring Constitent Units Data Detection Quantitation Reporting Well Limit Limit Limit Blanks MW-13 MW-14 II-1 II-2 II-3 IIdA II-5 II-6 II-7 II-7B II$ 11-12 II-3B II-9 SMW-1 SMW-3 SMW-0 1,1-Dichloroethane ug/L 03/01/99 -- -- 5 ND ND ND 13 ND -- 26 ND 33 ND 7.9 ND - ND - -- -- ND NC 2L = 6 ug/L ug/L -- -- 5 ND ND ND 9.2 ND-- 13 ND 12 ND 7.4 -- - -- - -- -- ND (No EPA MCL) ug/L 03/01/00 -- -- 5 ND ND ND ND ND -- ND ND 7.5 ND 5.1 ND - ND - -- -- ND ug/L 09/01/00 -- -- 5 ND ND ND 6.3 ND -- 11 ND 5.9 ND 5.3 ND ug/L 03/01/01 -- -- 5 ND ND ND ND ND -- 10 ND 9.7 ND 5.0 ND -- ND - -- -- ND ug/L -- -- 5 ND ND ND 9.5 7.0 -- 11 ND 69 ND ND -- - -- - -- -- ND ug/L 03/01/02 -- -- 5 ND ND ND 9.1 ND -- 8.7 ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND ug/L 04/15/03 -- -- 5 ND ND ND ND ND -- 6.3 ND ND ND ND ND ug/L 10/01/03 -- -- 5 ND ND ND 7.8 ND -- 5.8 ND 5.6 ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 5 ND ND ND ND ND -- 5.5 ND 6.9 ND ND ND -- ND ND ug/L 09/01/04 -- -- 5 ND ND ND 20 5.4 -- 7.7 ND ND 5.7 ND -- -- -- -- -- -- ND ug/L 05/01/05 -- -- 5 ND ND ND 12 6.0 -- 5.0 ND 9.0 5.0 ND ND -- 25 - -- -- ND ug/L 10/01/05 -- -- 5 ND ND ND 17 6.0 -- 5.0 ND 9.0 ND ND -- -- -- - -- -- ND ug/L 04/01/06 -- -- -- -- -- ug/L 10/01/06 -- -- 5 ND ND ND 16 7.3 -- ND ND ND ND ND -- -- -- -- -- -- ND u9 04/12/07 -- -- -- -- 2.0 J 0.09 2.6 J 2.7 J 1.2 J -- -- -- -- -- -- ND u9 09/26/07 -- -- -- ND J 14 -- 1.6 J -- 2.9 J 2.5 J 1.1 J -- -- -- - -- -- ND ug/L 04/29/08 0.33 -- 5 ND ND 1.1 J 15 12 -- ND ND ND 2.0 J 1.2 J ND -- -- -- -- -- ND ug/L 12/01/08 0.33 -- 5 ND ND 2.5 J 15 14 -- ND ND ND 1.2 J 1.2 J ND -- -- -- -- -- ND ug/L 04/17/09 0.33 -- 5 ND ND 1.5 J 11 12 -- ND ND 0.72 J 0.89 J 0.87 J ND -- -- -- -- -- ND ug/L 10/16/09 0.33 -- 5 ND ND 3.0 J 17 12 -- 0.62 J ND 1.7 J 0.49 J 0.73 J -- -- -- -- - -- ND ug/L 04/28/10 0.05 -- 5 ND ND 2.3 J 16 15 -- 0.91 J ND 1.1 J ND 0.79 J ND -- -- -- -- -- ND ug/L 08/02/10 0.33 -- 5 -- -- -- -- -- -- -- ND 4.2 J ND ND ug/L 10/11/10 0.33 -- 5 ND ND 3.0 J 17 15 -- 0.74 J ND 0.42 J ND 0.83 J ND -- - ND 3.8 J ND ND ug/L O5/09/11 0.08 -- 5 ND ND 1.1 J 16 14 _ ND ND ND ND 0.79 J ND -- - -- - -- ND ug/L 10/12/11 0.08 -- 5 ND ND 1.7 J 12 11 - ND ND ND ND ND ND 0.88 J 5.8 ND 0.88 J ND ND ug/L 04/17/12 0.13 -- 5 ND ND 1.2 J 9.3 12 -- ND ND 0.65 J 0.64 J 0.66 J ND - 6.9 ND 5.4 ND ND ug/L 10/25/12 0.13 -- 5 ND ND 1.6 J 11 14 -- ND ND 0.79 J 0.85 J ND ND 0.90 J ND ND 5.0 ND ND ug/L 05/02/13 0.13 -- 5 ND ND 0.77 J 14 17 -- ND ND ND 0.90 J 0.53 J ND 0.74 J 7.9 ND 4.5 J ND ND ug/L 09/24/13 0.13 -- 5 ND ND 0.89 J 11 10 1.4 J 0.44 J ND ND ND 0.46 J ND 0.90 J ND ND 5.6 ND ND ug/L 04/24/14 0.13 -- 5 ND ND 0.79 J 10 15 -- ND ND ND 0.54 J 0.42 J ND 0.80 J ND ND ND ND ND ug/L 10/06/14 0.13 -- 5 ND ND 0.53 J 8.4 11 1.2 J ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/14/15 0.13 -- 5 ND ND 0.45 J 7.1 14 1.2 J ND ND ND 0.89 J 0.13 -- 0.96 J 5.7 ND ND ND ND ug/L 10/07/15 0.13 -- 5 ND -- 0.86 J ND 14 0.99 J ND ND ND 0.79 J ND ND ND 5.8 ND 3.7 J ND ND ug/L 04/20/16 0.13 -- 5 ND ND 0.46 J 9.5 12 0.95 J ND ND ND 1.2 J ND ND 0.9 J 0.42 J ND 5.5 ND ND ug/L 09/26/16 0.13 -- 5 ND -- 0.76 J 8.6 12 1.0 J ND ND ND 0.63 J ND ND 0.81 J 4.6 ND ND ND ND ug/L 04/25/17 0.13 -- 5 ND ND ND 7.5 12 0.80 J ND ND ND 1.0 J ND ND 0.91 J 3.8 J ND 0.51 J ND ND ug/L 10/17/17 0.13 -- 5 ND -- 0.54 J 6.3 10 0.85 J ND ND ND 1.0 J ND ND 0.66 J 4.0 J ND 4.6 J ND ND ug/L 04/16/18 0.13 -- 5 ND ND ND 7.2 11 0.77 J ND ND ND 1.7 J ND ND 0.91 J 2.7 J ND 7.8 ND ND ug/L 10/16/18 0.13 1.0 - ND - ND 5.3 5.5 0.55 J ND ND ND 1.1 ND ND ND ND ND 1.1 ND ND ug/L 04/12/19 0.13 1.0 ND ND ND 4.8 4.4 ND ND ND ND 0.99 J ND ND 0.66 J 0.41 J ND 4.2 ND ND 1,2-Dichloroethane ug/L 03/01/99 - -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND NC 2L _ 0.4 ug/L ug/L - -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND EPA IVICL= 5 ug/L ug/L -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- - -- -- ND ug/L 03/01/02 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND ug/L 05/01/05 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ug/L 10/01/05 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND ug/L 04/01/06 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND ug/L 04/12/07 -- -- -- ND ND ND ND ND -- ND ND ND ND ND -- -- -- - -- -- ND ug/L09/26/07 - -- -- -- ND -- ND ND ND -- -- -- - -- -- ND ug/L 04/29/08 0.46 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- - -- -- ND ug/L 12/01/08 0.65 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 04/17/09 0.65 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ug/L 10/16/09 0.65 -- 1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/28/10 0.65 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ug/L 08/02/10 0.65 -- 1 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ug/L 10/11/10 0.65 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- ND ND ND ND ug/L O5/09/11 0.47 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- - -- - -- ND ug/L 10/12/11 0.47 -- 1 ND ND ND ND ND - ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/17/12 0.21 -- 1 ND ND ND ND ND - ND ND ND ND ND ND -- ND ND ND ND ND ug/L 10/25/12 0.21 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L O5/02/13 0.21 -- 1 ND ND ND 0.40 J ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/24/13 0.21 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/24/14 0.21 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/06/14 0.21 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/14/15 0.21 -- 1 ND ND ND ND ND ND ND ND ND ND ND -- ND ND ND ND ND ND ug/L 10/07/15 0.21 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/16 0.21 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 0.21 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/25/17 0.21 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 0.21 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/16/18 0.21 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 0.21 1.0 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 1 04/12/19 1 0.21 1 1.0 ND ND I ND ND ND ND ND ND ND ND ND ND I ND I ND ND ND ND I ND 1668421.105 r> GOLFER 13 of 24 August 2019 TABLE4 Smmary of Grondwater Monitoring Resits Detected Constitents White Street Landfill - Phase 11, Permit No. 41-03 Greensboro, North Carolina Method Practical SWS Assessment Reporting Sample Upgradient Monitoring Wells Compliance Downgraient Monitoring Wells Monitoring Sentinel Monitoring Wells Detected Monitoring Constitent Units Date Detection Quantitation Reporting Well Limit Limit Limit Blanks MW-13 MW-14 II-1 II-2 113 114A 115 II-6 II-7 II-7B 11-8 II-12 II-3B II-9 SMW-1 SMW3 SMW4 1,1-Dichloroethene ug/L 03/01/99 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND NC 2L = 7 ug/L ug/L 09/01/99 - -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND EPA MCL=7 ug/L ug/L 03/01/00 - -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L O5/01/05 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/01/06 -- -- -- -- -- -- __ ug/L 10/01/06 -- -- 5 ND ND ND ND ND - ND ND ND ND ND - -- -- -- -- -- ND ug/L 04/12/07 -- -- -- ND ND ND 0.50 J ND - ND ND ND ND ND ND ug/L 09/26/07 -- -- -- ND ND ND 0.52 J ND -- ND - ND ND ND ND ug/L 04/29/08 0.20 -- 5 ND ND ND 0.47 J ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 12/01/08 0.24 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 04/17/09 0.24 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/16/09 0.24 -- 5 ND ND ND 0.60 J ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/28/10 0.15 -- 5 ND ND ND 0.45 J ND -- ND ND ND ND ND ND -- -- -- - -- ND ug/L 08/02/10 0.24 - 5 -- -- - -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ug/L 10/11/10 0.24 -- 5 ND ND ND 0.49 J ND -- ND ND ND ND ND ND -- -- ND ND ND ND ug/L 05/09/11 0.60 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/12/11 0.60 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/17/12 0.21 -- 5 ND ND ND ND ND - ND ND ND ND ND ND -- ND ND ND ND ND ug/L 10/25/12 0.21 -- 5 ND ND ND ND ND - ND ND ND ND ND ND ND ND ND ND ND ND ug/L 05/02/13 0.21 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/24/13 0.21 -- 5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/24/14 0.21 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/06/14 0.21 -- 5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/14/15 0.21 -- 5 ND ND ND ND ND ND ND ND ND ND ND - ND ND ND ND ND ND ug/L 10/07/15 0.21 -- 5 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/16 0.21 -- 5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 0.21 -- 5 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/25/17 0.21 -- 5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 0.21 -- 5 ND - ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/16/18 0.21 - 5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 0.21 1.0 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 04/12/19 1 0.21 1.0 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND cis-1,2-Dichloroethene ug/L 03/01/99 -- -- 5 ND ND ND ND ND - ND ND ND ND ND ND -- ND -- - -- ND NC 2L = 70 ug/L ug/L 09/01/99 -- - 5 ND ND ND ND ND - ND ND ND ND ND - -- - -- - -- ND EPA MCL=70 ug/L ug/L 03/01/00 -- - 5 ND ND ND ND ND - ND ND ND ND ND ND -- ND -- - -- ND ug/L 09/01/00 -- - 5 ND ND ND ND ND - ND ND ND ND ND -- - -- - -- -- ND ug/L 03/01/01 - -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND - -- -- ND ug/L 09/01/01 - -- 5 ND ND ND ND ND -- ND ND 44 ND ND -- -- -- - -- -- ND ug/L 03/01/02 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- - -- -- -- ND ug/L 04/15/03 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- - -- -- -- ND ug/L 10/01/03 -- -- 5 ND ND ND ND ND -- ND ND 6.0 ND ND -- -- - - -- -- ND ug/L 03/01/04 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 - -- 5 ND ND ND 5.2 ND -- ND ND ND ND ND -- -- -- - -- -- ND ug/L 05/01/05 - -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 - -- 5 ND ND ND 5.0 ND -- ND ND ND ND ND -- -- -- - -- -- ND ug/L 04/01/06 - -- -- -- -- - -- __ ug/L 10/01/06 - -- 5 ND ND ND 7.9 ND -- ND ND ND ND ND -- -- -- - -- -- ND ug L 04/12/07 - -- -- -- ND ND 1.1 J ND ND -- -- -- -- -- -- ND ug/L 09/26/07 - -- -- ND ND ND ND ND -- ND -- 1.3 J ND ND -- -- -- -- -- -- ND ug/L 04/29/08 0.30 -- 5 ND ND ND 12 ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 12/01/08 0.36 -- 5 ND ND 0.71 J 11 0.52 J -- ND ND ND ND ND ND ND ug/L 04/17/09 0.36 -- 5 ND ND 1.0 1 11 0.52 1 -- ND ND 2.3 1 ND ND ND -- -- -- -- -- ND ug/L 10/16/09 0.36 -- 5 ND ND 3.0 1 20 0.46 J -- ND ND 0.94 1 ND ND ND ug/L 04/28/10 0.075 -- 5 ND ND 3.3 J 20 0.66 J -- ND ND 3.6 J ND ND ND -- -- -- - -- ND ug 08/02/10 -- 5 -- ND 4.9 J 20 -- -- -- -- 0.71 J ND -- -- -- 20 ND 6.9 ND ND ug/L 10/11/10 0.36 -- 5 ND ND 4.2 J 23 0.88 J -- ND ND ND ND ND ND -- - ND ND ND ND ug/L 05/09/11 0.72 -- 5 ND ND 0.88 J 21 1.7 1 -- ND ND ND ND ND ND - -- -- - - ND ug/L 10/12/11 0.72 -- 5 ND ND ND 21 ND -- ND ND ND ND ND ND ND 16 ND 1.2 J ND ND ug/L 04/17/12 0.15 -- 5 ND ND 2.1 J 17 0.66 J -- ND ND 0.79 1 0.58 J 0.15 ND -- 16 ND 12 ND ND ug/L 10/25/12 0.15 -- 5 ND ND 3.0 J 23 0.73 J -- ND ND 0.48 J 0.44 J ND ND ND 24 ND 12 ND ND ug/L 05/02/13 0.15 -- 5 ND ND 1.3 J 29 1.0 J -- 0.15 0.15 0.15 0.15 0.15 ND 0.15 23 ND 14 ND ND ug/L 09/24/13 0.15 -- 5 ND ND 2.6 J 26 0.68 J 0.87 J ND ND ND ND ND 0.78 J ND 26 ND ND ND ND ug/L 04/24/14 0.15 -- 5 ND ND 0.43 J 26 1.0 J -- ND ND ND ND ND ND ND ND ND 14 ND ND ug/L 10/06/14 0.15 -- 5 ND ND 1.1 1 21 0.74 J ND ND ND ND ND ND ND ND 17 ND ND ND ND ug/L 04/14/15 0.15 -- 5 ND ND ND 19 1.3 J 1.0 J ND ND ND ND ND -- ND ND ND 15 ND ND ug/L 10/07/15 0.15 -- 5 ND -- ND ND 0.85 J 0.60 J ND ND ND ND ND ND ND 13 ND 7.6 ND ND ug/L 04/20/16 0.15 -- 5 ND ND ND 21 1.1 J 0.82 J ND ND ND ND ND ND ND 0.83 J ND 12 ND ND ug/L 09/26/16 0.15 -- 5 0.15 -- ND 20 1.1 J 0.15 0.15 0.15 0.15 0.15 0.15 0.15 ND 8.0 ND 12 ND ND ug/L 04/25/17 0.15 -- 5 ND ND ND 21 1.3 J 1.1 J ND ND ND ND ND ND ND 7.3 ND 1.0 J ND ND ug/L 10/17/17 0.15 -- 5 ND -- ND 16 0.92 J 0.65 J ND ND ND ND ND ND ND 7.4 ND 11 ND ND ug/L 04/16/18 0.15 -- 5 ND ND ND 19 1.3 J 0.83 J ND ND ND ND ND ND ND 4.4 J ND 22 ND ND ug/L 10/16/18 0.15 1.0 -- ND -- ND 16 0.91 J 0.82 J ND ND ND ND ND ND ND 0.53 J ND 2.7 ND ND u /L 04/12/19 0.15 1.0 ND ND ND 12 0.56 1 ND ND ND ND ND ND ND ND 0.55 J ND 14 ND ND 1668421.105 r> GOLFER 14 of 24 August 2019 TABLE4 Smmary of Grondwater Monitoring Resits Detected Constitents White Street Landfill - Phase 11, Permit No. 41-03 Greensboro, North Carolina Method Practical SWS Assessment Reporting Sample Upgradient Monitoring Wells Compliance Downgraient Monitoring Wells Monitoring Sentinel Monitoring Wells Detected Monitoring Constitent Units Date Detection Quantitation Reporting Well Limit Limit Limit Blanks MW-13 MW-14 II-1 II-2 113 114A 115 II-6 II-7 II-7B 11-8 II-12 II-3B II-9 SMW-1 SMW3 SMW4 Bromomethane ug/L 03/01/99 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- -- SWS GPS = 10 ug/L ug/L 09/01/99 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- (No EPA MCL) ug/L 03/01/00 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- -- ug/L 09/01/00 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 03/01/01 -- -- 10 ND ND ND ND ND - ND ND ND ND ND ND -- ND -- - -- -- ug/L 09/01/01 -- -- 10 ND ND ND ND ND - ND ND ND ND ND - -- - -- - -- -- ug/L 03/01/02 -- -- 10 ND ND ND ND ND - ND ND ND ND ND ND -- ND -- -- -- -- ug/L 09/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 04/15/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/03 -- -- 10 ND ND ND ND ND - ND ND ND ND ND ug/L 03/01/04 -- -- 10 ND ND ND ND ND - ND ND ND ND ND ND -- ND - -- -- ug/L 09/01/04 -- -- 10 ND ND ND ND ND - ND ND ND ND ND ug/L O5/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ug/L 10/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- - -- -- -- -- ug/L 04/01/06 -- -- -- -- -- ug/L 10/01/O6 -- -- 10 ND ND ND ND ND - ND ND ND ND ND -- -- - -- - -- - u9 04/12/07 -- -- - ND ND ND ND ND -ND ND ND ND ND-- -- - - ND u9 09/26/07 -- -- - ND ND 2.1 1 ND ND -ND -ND ND ND- -ND - ug/L 04/29/08 0.49 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 12/01/08 0.49 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 04/17/09 0.49 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND ug/L 10/16/09 0.49 -- 10 ND ND ND ND ND -- ND ND ND ND ND - -- -- -- - -- ND ug/L 04/28/10 0.49 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND ug/L 08/02/10 0.49 - 10 - -- -- - - -- -- -- -- -- -- -- -- -- ND ND ND ND ug/L 10/11/10 0.49 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- ND ND ND ND ug/L O5/09/11 0.58 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/12/11 0.58 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/17/12 0.14 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND ND ND ND ND ug/L 10/25/12 0.14 - 10 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L O5/02/13 0.14 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/24/13 0.14 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/24/14 0.14 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/06/14 0.14 - 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/14/15 0.14 - 10 ND ND ND ND ND ND ND ND ND ND ND - ND ND ND ND ND ND ug/L 10/07/15 0.14 - 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/16 0.14 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 0.14 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/25/17 0.14 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 0.14 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/16/18 0.14 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 0.14 1.0 - ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 04/12/19 1 0.14 1.0 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Chloromethane ug/L 03/O1/99 -- -- 10 ND ND ND ND ND - ND ND ND ND ND ND -- ND -- - -- ND NC 2L = 3 ug/L ug/L 09/01/99 -- -- 10 ND ND ND ND ND - ND ND ND ND ND - -- - -- - -- ND (No EPA MCL) ug/L 03/O1/00 -- -- 10 ND ND ND ND ND - ND ND ND ND ND ND -- ND -- - -- ND ug/L 09/01/00 -- -- 10 ND ND ND ND ND - ND ND ND ND ND ND ug/L 03/01/01 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND - -- -- ND ug/L 09/01/01 -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- - -- -- ND ug/L 03/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND ug/L 04/15/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND ug/L 03/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ug/L 09/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND ug/L O5/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND ug/L 04/01/06 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- - ug/L 10/01/06 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND ug/L 04/12/07 - -- -- ND ND ND ND ND - ND ND ND ND ND -- -- - -- -- ND u9 09/26/07 - -- -- - ND -- ND ND ND -- -- -- - -- -- ND ug/L 04/29/08 0.23 -- 1 ND ND ND ND ND - ND ND ND ND ND ND -- -- -- -- -- ND ug/L 12/01/08 0.34 -- 1 ND ND ND ND ND - ND ND ND ND ND ND -- -- -- -- -- ND ug/L 04/17/09 0.34 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND - -- - -- -- ND ug/L 10/16/09 0.34 -- 1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- - -- -- ND ug/L 04/28/10 0.05 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ug/L 08/02/10 0.34 -- 1 -- -- -- -- -- -- -- -- -- -- 0.40 J 0.44 J 0.34 ND ug/L 10/11/10 0.34 -- 1 ND ND ND ND ND - ND ND ND ND ND ND -- - ND 0.61 J ND ND ug/L O5/09/11 0.55 -- 1 ND ND ND ND ND - ND ND ND ND ND ND -- - -- - -- ND ug/L 10/12/11 0.55 - 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/17/12 0.13 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- ND ND ND ND ND ug/L 10/25/12 0.13 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L O5/02/13 0.13 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/24/13 0.13 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/24/14 0.13 - 1 ND ND ND ND ND - ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/06/14 0.13 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/14/15 0.13 -- 1 ND ND ND ND ND ND ND ND ND ND ND -- ND ND ND ND ND ND ug/L 10/07/15 0.13 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/16 0.13 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 0.13 - 1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/25/17 0.13 -- 1 ND 0.74 J ND ND ND ND ND ND ND ND 0.56 J ND ND 0.49 J ND ND ND ND ug/L 10/17/17 0.13 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/16/18 0.13 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 0.13 1.0 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 1 04/12/19 1 0.13 1 1.0 ND ND I ND ND ND ND ND ND ND ND ND ND I ND I ND ND ND ND I ND 1668421.105 r> GOLFER 15 of 24 August 2019 TABLE4 Smmary of Grondwater Monitoring Resits Detected Constitents White Street Landfill - Phase 11, Permit No. 41-03 Greensboro, North Carolina Method Practical SWS Assessment Reporting Sample Upgradient Monitoring Wells Compliance Downgraient Monitoring Wells Monitoring Sentinel Monitoring Wells Detected Monitoring Constitent Units Date Detection Quantitation Reporting Well Limit Limit Limit Blanks MW-13 MW-14 II-1 II-2 113 114A 115 II-6 II-7 II-7B 11-8 II-12 II-3B II-9 SMW-1 SMW3 SMW4 Methylene Chloride ug/L 03/01/99 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND NC 2L = 5 ug/L ug/L 09/01/99 - -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND EPA MCL=5 ug/L ug/L 03/01/00 - -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- - 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L O5/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/01/06 -- -- -- -- -- -- __ ug/L 10/01/06 -- -- 10 ND ND ND ND ND - ND ND ND ND ND - -- -- -- -- -- ND ug/L 04/12/07 -- -- -- ND ND ND ND ND - ND ND ND ND ND ND ug/L 09/26/07 -- -- -- ND ND ND ND ND -- ND - ND ND ND ND ug/L 04/29/08 0.24 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 12/01/08 0.53 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ug/L 04/17/09 0.53 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/16/09 0.53 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ug/L 04/28/10 0.07 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- - -- ND ug/L 08/02/10 0.53 -- 1 - -- -- - -- -- - -- - -- -- -- -- -- ND ND ND ND ug/L 10/11/10 0.53 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- ND ND ND ND ug/L 05/09/11 0.14 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ug/L 10/12/11 0.14 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/17/12 0.23 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- ND ND ND ND ND ug/L 10/25/12 0.23 -- 1 ND ND ND ND ND - ND ND ND ND ND ND ND ND ND ND ND ND ug/L 05/02/13 0.23 -- 1 ND ND ND ND 0.47 J -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/24/13 0.23 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/24/14 0.23 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/06/14 0.23 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/14/15 0.23 -- 1 ND ND ND ND ND ND ND ND ND ND ND - ND ND ND ND ND ND ug/L 10/07/15 0.23 -- 1 ND - ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/16 0.23 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 0.23 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/25/17 0.23 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 0.23 - 1 ND - ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/16/18 0.23 - 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 0.23 1.0 - ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 04/12/19 1 0.23 1.0 ND ND ND ND ND ND ND ND ND ND ND 0.46 B ND ND ND ND ND 0.52 J 2-Butanone ug/L 03/01/99 -- -- 100 ND ND ND ND ND - ND ND ND ND ND ND -- ND -- - -- ND NC 2L = 4000 ug/L ug/L 09/01/99 -- - 100 ND ND ND ND ND - ND ND ND ND ND - -- - -- - -- ND (No EPA MCL) ug/L 03/01/00 -- - 100 ND ND ND ND ND - ND ND ND ND ND ND -- ND -- - -- ND ug/L 09/01/00 -- - 100 ND ND ND ND ND - ND ND ND ND ND - -- - - -- -- ND ug/L 03/01/01 - -- 100 ND ND ND ND ND -- ND ND ND ND ND ND -- ND - -- -- ND ug/L 09/01/01 - -- 100 ND ND ND ND ND -- ND ND ND 680 ND -- -- -- - -- -- ND ug/L 03/01/02 -- -- 100 ND ND ND ND ND -- ND ND ND 130 ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND -- -- -- - -- -- ND ug/L 03/01/04 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND ND -- ND - -- -- ND ug/L 09/01/04 - -- 100 ND ND ND ND ND -- ND ND ND ND ND -- -- -- - -- -- ND ug/L 05/01/05 - -- 100 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 - -- 100 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/01/06 -- -- -- -- -- -- __ ug/L 10/01/06 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND -- -- -- - -- -- ND ug/L 04/12/07 -- -- -- ND ND ND ND ND -- ND ND ND 38 J ND ND ug/L 09/26/07 -- -- -- ND ND ND ND ND -- ND -- ND ND ND -- -- -- - -- -- ND ug/L 04/29/08 0.44 -- 100 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 12/01/08 1 -- 100 ND ND ND ND ND -- ND ND ND ND ND ND ND ug/L 04/17/09 1 -- 100 ND ND ND ND ND -- ND ND ND ND ND ND -- -- - -- -- ND ug/L 10/16/09 1 -- 100 ND ND ND ND ND -- ND ND ND ND ND ND ug/L 04/28/10 1 -- 100 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- ND ug/L 08/02/10 1 -- 100 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ug/L 10/11/10 1 -- 100 ND ND ND ND ND - ND ND ND ND ND ND -- - ND ND ND ND ug/L 05/09/11 1.3 - 100 ND ND ND ND ND - ND ND ND ND ND ND -- - -- - -- ND ug/L 10/12/11 1.3 -- 100 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/17/12 1.3 -- 100 ND ND ND ND ND -- ND ND ND 17 J ND ND -- ND ND ND ND ND ug/L 10/25/12 1.3 -- 100 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 05/02/13 1.3 -- 100 ND ND ND ND ND -- ND ND ND 11 J ND ND ND ND ND ND ND ND ug/L 09/24/13 1.3 -- 100 ND ND ND ND ND 31 J ND ND ND 4.3 J ND ND ND ND ND ND ND ND ug/L 04/24/14 1.3 -- 100 ND ND ND ND ND - ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/06/14 1.3 -- 100 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/14/15 1.3 -- 100 ND ND ND ND ND ND ND ND ND ND ND -- ND ND ND ND ND ND ug/L 10/07/15 1.3 -- 100 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/16 1.3 -- 100 ND 1.3 ND ND ND ND ND ND ND ND ND ND ND ND ND ND 1.3 ND ug/L 09/26/16 1.3 -- 100 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/25/17 1.3 - 100 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 1.3 -- 100 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/16/18 1.3 -- 100 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 1.3 5.0 - ND - ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 04/12/19 1.3 5.0 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 1668421.105 r> GOLFER 16 of 24 August 2019 TABLE4 Smmary of Grondwater Monitoring Resits Detected Constitents White Street Landfill - Phase 11, Permit No. 41-03 Greensboro, North Carolina Method Practical SWS Assessment Reporting Sample Upgradient Monitoring Wells Compliance Downgraient Monitoring Wells Monitoring Sentinel Monitoring Wells Detected Monitoring Constitent Units Date Detection Quantitation Reporting Well Limit Limit Limit Blanks MW-13 MW-14 II-1 II-2 11-3 114A 115 II-6 II-7 II-7B 114 II-12 II-3B II-9 SMW-1 SMW-3 SMW-4 Naphthalene ug/L 09/01/99 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND NC 2L = 6 ug/L ug/L 09/01/00 - -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND (No EPA MCL) ug/L 09/01/01 - -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/01/02 - -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 - -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/01/04 - -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/05 - -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/06 - -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/26/07 - -- -- ND ND ND ND ND -- ND - ND ND ND ND ug/L 12/01/08 0.39 -- 10 ND ND 2.3 J ND 0.39 -- ND 5.6 J ND ND ND ND ND ug/L 10/16/09 0.39 -- 10 ND ND ND ND ND -- ND 3.9 J ND ND ND ND ug/L 10/11/10 0.39 -- 10 ND ND ND ND ND -- ND 2.7 J ND ND ND ND ND ug/L 10/12/11 0.46 -- 10 ND ND ND ND ND -- 0.46 ND 0.46 0.46 ND ND ND ug/L 10/25/12 0.11 -- 10 ND ND ND ND ND -- ND 4.6 J ND ND ND ND ND ug/L 09/24/13 0.11 -- 10 ND ND ND ND ND ND ND 1.6 J ND ND ND ND -- -- -- - -- ND ug/L 10/06/14 0.11 -- 10 ND ND ND ND ND ND ND 2.5 J ND ND ND ND ND ND ND ND ND ND ug/L 10/07/15 0.11 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 0.11 -- 10 ND -- ND ND ND ND ND 1.5 J ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 0.11 -- 10 ND -- ND ND ND ND ND 3.9 J ND ND ND ND ND ND ND ND ND ND u /L 10/16/18 1 0.11 1 ND ND ND ND ND ND 0.83 J ND ND ND ND ND ND ND ND ND ND Tetrachloroethene ug/L 03/01/99 -- -- 5 ND ND ND ND ND -- ND ND 12 ND ND ND -- ND -- - -- ND NC 2L _ 0.7 ug ug -- -- 5 ND ND ND ND ND-- ND ND 12 ND ND -- -- - -- - -- ND EPA MCL = 5 ug/L ug/L 03/01/00 -- -- 5 ND ND ND ND ND -- ND ND 9 ND ND ND -- ND -- - -- ND ug/L 09/01/00 -- -- 5 ND ND ND ND ND -- ND ND 12 ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 5 ND ND ND ND ND -- ND ND 9.6 ND ND ND - ND -- -- -- ND ug -- -- 5 ND ND ND ND ND-- ND ND 20 ND ND -- - -- -- -- -- ND ug/L 03/01/02 -- -- 5 ND ND ND ND ND -- ND ND 7 ND ND ND -- ND -- -- -- ND ug -- -- 5 ND ND ND ND ND-- ND ND 8.7 ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 - -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- - -- -- ND ug/L 03/01/04 - -- 5 ND ND ND ND ND -- ND ND 6.7 ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND ug/L O5/01/05 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/01/06 -- -- -- - -- - -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 5 ND ND ND 5.2 ND -- ND ND ND ND ND ND ug/L 04/12/07 -- -- -- ND ND ND 5.1 ND -- ND ND 3.6 1.8 ND -- -- -- _ -- -- ND u9 09/26/07 - -- -- ND ND -- -- 1.6 0.49 J ND -- -- -- - -- -- ND ug/L 04/29/08 0.36 -- 1 ND ND ND 3.5 ND -- ND ND 0.69 J 0.40 J ND ND -- -- - -- -- ND ug/L 12/01/08 0.36 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- - - -- ND ug/L 04/17/09 0.36 -- 1 ND ND ND 3.2 ND -- ND ND 0.99 J 0.63 J ND ND -- -- - - -- ND ug/L 10/16/09 0.36 -- 1 ND ND ND 5.2 ND -- ND ND 0.83 J 0.51 J ND -- -- -- _ _ -- ND ug/L 04/28/10 0.099 -- 1 ND ND ND 4.2 ND -- ND ND 0.56 J 0.57 J ND ND -- -- - - -- ND ug/L 08/02/10 0.36 -- 1 -- -- - -- -- -- -- -- -- - -- -- -- -- ND ND ND ND ug/L 10/11/10 0.36 -- 1 ND ND 0.36 ND ND -- ND ND ND 0.57 J ND ND -- -- ND ND ND ND ug/L 05/09/11 0.73 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ug/L 10/12/11 0.73 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/17/12 0.17 -- 1 ND ND ND ND ND -- ND ND ND 0.41 J ND ND -- ND ND ND ND ND ug/L 10/25/12 0.17 -- 1 ND ND ND 2.7 ND -- ND ND 0.52 J 0.52 J ND ND ND ND ND ND ND ND ug/L 05/02/13 0.17 -- 1 ND ND ND 2.4 ND -- ND ND ND 0.48 J ND ND ND ND ND ND ND ND ug/L 09/24/13 0.17 -- 1 ND ND ND 2.1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/24/14 0.17 -- 1 ND ND ND ND ND -- ND ND ND 0.51 J ND ND ND ND ND 0.44 J ND ND ug/L 10/06/14 0.17 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/14/15 0.17 -- 1 ND ND ND 0.85 J ND ND ND ND 0.40 J ND ND - ND ND ND ND ND ND ug/L 10/07/15 0.17 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/16 0.17 -- 1 ND ND ND 1.4 ND ND ND ND ND 0.44 J ND ND ND ND ND ND ND ND ug/L 09/26/16 0.17 -- 1 ND -- ND 0.69 J ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/25/17 0.17 -- 1 ND ND ND 1.0 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 0.17 -- 1 ND -- ND 0.61 J ND ND ND ND ND 0.40 J ND ND ND ND ND ND ND ND ug/L 04/16/18 0.17 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 0.17 1.0 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 1 04/12/19 1 0.17 1 1.0 ND ND I ND 0.42 J ND ND ND ND ND ND ND ND ND ND ND ND ND ND 1668421.105 r> GOLFER 17 of 24 August 2019 TABLE4 Smmary of Grondwater Monitoring Resits Detected Constitents White Street Landfill - Phase 11, Permit No. 41-03 Greensboro, North Carolina Method Practical SWS Assessment Reporting Sample Upgradient Monitoring Wells Compliance Downgraient Monitoring Wells Monitoring Sentinel Monitoring Wells Detected Monitoring Constitent Units Date Detection Quantitation Reporting Well Limit Limit Limit Blanks MW-13 MW-14 II-1 II-2 113 114A 115 II-6 II-7 II-7B 11-8 II-12 II-3B II-9 SMW-1 SMW3 SMW4 Trichlomethene ug/L 03/01/99 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND NC 2L = 3 ug/L ug/L 09/01/99 - -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND EPA MCL=5 ug/L ug/L 03/01/00 - -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 5 ND ND ND ND ND -- ND ND 20 ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ug/L 09/01/02 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- - - - -- ND ug/L 03/01/04 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND - -- -- ND ug/L 09/01/04 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- - - - -- -- ND ug/L O5/01/05 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- - -- -- -- ND ug/L 04/01/06 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- - ug/L 10/01/06 -- -- 5 ND ND ND ND ND - ND ND ND ND ND -- -- -- -- - -- ND u9 04/12/07 -- -- -- ND ND ND ND ND -ND ND ND ND ND-- -- - ND u9 09/26/07 -- -- -- -- ND - ND ND ND -- -- -- -- - -- ND ug/L 04/29/08 0.25 -- 1 ND ND ND 3.6 ND -- ND ND ND ND ND ND -- -- -- - -- ND ug/L 12/01/08 0.38 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- ND ug/L 04/17/09 0.38 -- 1 ND ND ND 3.0 ND -- ND ND ND ND ND ND -- -- -- - -- ND ug/L 10/16/09 0.38 -- 1 ND ND 0.91 J 4.7 ND - ND ND 0.48 J ND ND -- -- -- -- _ -- ND ug/L 04/28/10 0.13 -- 1 ND ND 0.53 J 4.1 ND -- ND ND ND ND ND ND -- -- -- - -- ND u9 08/02/10 � -- -- ND 0.62 1 4.1 -- -- - -- ND ND -- -- -- ND ND ND ND ND ug/L 10/11/10 0.38 -- 1 ND ND 0.48 J 3.6 ND -- ND ND ND ND ND ND -- -- ND ND ND ND ug/L O5/09/11 0.72 -- 1 ND ND ND 3.3 ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/12/11 0.72 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/17/12 0.15 -- 1 ND ND ND 2.5 ND -- ND ND ND ND ND ND -- ND ND ND ND ND ug/L 10/25/12 0.15 -- 1 ND ND ND 2.9 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 05/02/13 0.15 -- 1 ND ND ND 3.2 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/24/13 0.15 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.40 J ND ND ug/L 04/24/14 0.15 -- 1 ND ND ND 2.5 ND -- ND ND ND ND ND ND ND ND ND 0.60 J ND ND ug/L 10/06/14 0.15 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/14/15 0.15 -- 1 ND ND ND ND ND ND ND ND ND ND ND - ND ND ND ND ND ND ug/L 10/07/15 0.15 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/16 0.15 -- 1 ND ND ND 2.0 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 0.15 -- 1 ND -- ND 1.4 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/25/17 0.15 -- 1 ND ND ND 2.6 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 0.15 -- 1 ND -- ND 1.5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/16/18 0.15 - 1 ND ND ND 1.4 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 0.15 1.0 -- ND -- ND 0.91 J ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 04/12/19 1 0.15 1.0 ND ND ND 1.2 ND ND ND ND ND ND ND ND ND ND ND ND ND ND Trichloro6uoromethane ug/L 03/01/99 -- -- 5 ND ND 38 34 ND -- ND 28 ND ND ND ND -- ND -- -- -- ND NC 2L = 2000 ug/L ug/L 09/01/99 -- -- 5 ND ND ND 30 ND -- ND ND ND ND ND -- -- -- -- -- -- ND (No EPA MCL) ug/L 03/01/00 -- -- 5 ND ND ND 14 ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 5 ND ND ND 20 ND -- ND ND ND ND ND -- -- -- - -- -- ND ug/L 03/01/01 - -- 5 ND ND ND 14 ND -- ND ND ND ND ND ND -- ND - -- -- ND ug/L 09/01/01 - -- 5 ND ND ND 23 ND -- ND ND ND ND ND -- -- -- - -- -- ND ug/L 03/01/02 - -- 5 ND ND ND 17 ND -- ND ND ND ND ND ND -- ND - -- -- ND ug/L 09/01/02 - -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- - -- -- ND ug/L 04/15/03 - -- 5 ND ND ND 5.2 ND -- ND ND ND ND ND -- -- -- - -- -- ND ug/L 10/01/03 - -- 5 ND ND ND 14 ND -- ND ND ND ND ND -- -- -- - -- -- ND ug/L 03/01/04 - -- 5 ND ND ND 5.6 ND -- ND ND ND ND ND ND -- ND - -- -- ND ug/L 09/01/04 - -- 5 ND ND ND 21 ND -- ND ND ND ND ND -- -- -- - -- -- ND ug/L 05/01/05 - -- 5 ND ND ND 7.0 ND -- ND ND ND ND ND ND -- ND - -- -- ND ug/L 10/01/05 - -- 5 ND ND ND 10 ND -- ND ND ND ND ND -- -- -- - -- -- ND ug/L 04/01/06 - -- -- -- -- - -- ug/L 10/01/06 - -- 5 ND ND ND 13 ND -- ND ND ND ND ND -- -- -- -- -- ND ug 04/12/07 - -- -- ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/26/07 - -- -- ND ND ND ND ND -- ND -- ND ND ND ND ug/L 04/29/08 0.28 -- 1 ND ND ND 4.2 ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 12/01/08 0.28 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ug/L 04/17/09 0.28 -- 1 ND ND ND 2.5 ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/16/09 0.28 -- 1 ND ND ND 4.1 ND -- ND ND ND ND ND ND ug/L 04/28/10 0.15 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 08/02/10 0.28 -- 1 -- -- -- -- -- -- -- - -- -- -- - -- - ND ND ND ND ug/L 10/11/10 0.28 -- 1 ND ND ND 2.3 ND - ND ND ND ND ND ND -- - ND ND ND ND ug/L 05/09/11 0.66 -- 1 ND ND ND 1.2 ND - ND ND ND ND ND ND -- - -- - -- ND ug/L 10/12/11 0.66 -- 1 ND ND ND ND ND - ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/17/12 0.24 -- 1 ND ND ND 0.84 J ND -- ND ND ND ND ND ND -- ND ND ND ND ND ug/L 10/25/12 0.24 -- 1 ND ND ND 0.88 J ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 05/02/13 0.24 -- 1 ND ND ND 0.73 J ND - ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/24/13 0.24 -- 1 ND ND ND 0.48 J ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/24/14 0.24 -- 1 ND ND ND 0.55 J ND - ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/06/14 0.24 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/14/15 0.24 -- 1 ND ND ND ND ND ND ND ND ND ND ND -- ND ND ND ND ND ND ug/L 10/07/15 0.24 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/16 0.24 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 0.24 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/25/17 0.24 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 0.24 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/16/18 0.24 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 0.24 1.0 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 04/12/19 0.24 1.0 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 1668421.105 r> GOLFER 18 of 24 August 2019 TABLE4 Smmary of Grondwater Monitoring Resits Detected Constitents White Street Landfill - Phase 11, Permit No. 41-03 Greensboro, North Carolina Method Practical SWS Assessment Reporting Sample Upgradient Monitoring Wells Compliance Downgraient Monitoring Wells Monitoring Sentinel Monitoring Wells Detected Monitoring Constitent Units Date Detection Quantitation Reporting Well Limit Limit Limit Blanks MW-13 MW-14 II-1 II-2 113 114A 115 II-6 II-7 II-7B 11-8 II-12 II-3B II-9 SMW-1 SMW3 SMW4 Vinyl Chloride ug/L 03/01/99 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND NC 2L = 0.03 ug/L ug/L 09/01/99 - -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND EPA MCL=2 ug/L ug/L 03/01/00 - -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- - 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L O5/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- 12 -- -- -- ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ug/L 04/01/06 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- - ug/L 10/01/06 -- -- 10 ND ND ND ND ND - ND ND ND ND ND ND ug/L 04/12/07 -- -- -- ND ND ND ND ND - ND ND ND ND ND -- -- - -- -- -- ND u9 09/26/07 -- -- --ND ND 0.7. -- -- 0.44 J ND ND -- -- -- -- ND ug/L 04/29/08 0.3 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 12/01/08 0.3 -- 1 ND ND 0.73 J 3.9 0.44 J - ND ND ND ND ND ND -- -- -- -- -- ND ug/L 02/13/09 0.3 -- 1 _ __ 0.47 J __ _ __ __ __ __ __ __ __ __ __ __ ND ug/L 04/17/09 0.3 -- 1 ND ND ND ND ND -- ND ND 0.45 J ND ND ND ND ug/L 10/16/09 0.3 -- 1 ND ND 1.6 5.4 ND -- ND ND 0.47 J ND ND ND ug/L 04/28/10 0.083 -- 1 ND ND 0.90 J 4.8 ND __ ND ND 0.80 J ND ND ND -- -- -- -- -- ND ug/L 08/02/10 0.3 -- 1 -- ND 1.5 4.8 -- -- -- -- ND ND -- -- -- 2.6 ND 0.49 J ND ND ug/L 10/11/10 0.3 -- 1 ND ND 1.4 5.4 0.44 J -- ND ND ND ND ND ND -- -- ND 0.68 J ND ND ug/L 05/09/11 0.6 -- 1 ND ND ND 5.1 ND -- ND ND ND ND ND ND ug/L 10/12/11 0.6 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND 0.69 ND ND ND ND ug/L 04/17/12 0.32 -- 1 ND ND 0.52 J 2.1 ND -- ND ND ND ND ND ND -- 1.0 ND ND ND ND ug/L 10/25/12 0.32 -- 1 ND ND 1.3 ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 05/02/13 0.32 -- 1 ND ND ND 5.6 0.54 J -- ND ND ND ND ND ND ND 0.79 ND ND ND ND ug/L 09/24/13 0.32 -- 1 ND ND 0.43 J 3.6 ND ND ND ND ND ND ND ND ND 4.0 ND 1.3 ND ND ug/L 04/24/14 0.32 -- 1 ND ND ND 4.6 0.52 J -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/06/14 0.32 -- 1 ND ND ND 2.6 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/14/15 0.32 -- 1 ND ND ND 2.5 0.44 J ND ND ND ND ND ND -- ND ND 0.71 1.6 0.71 ND ug/L 10/07/15 0.32 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND 0.72 J ND ND ug/L 04/20/16 0.32 -- 1 ND ND ND 4.2 ND ND ND ND ND ND ND ND ND ND ND 1.6 ND ND ug/L 09/26/16 0.32 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ND 1.4 ND 1.5 ND ND ug/L 04/25/17 0.32 -- 1 ND ND ND 3.1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 0.32 -- 1 ND -- ND 2.5 ND ND ND ND ND ND ND ND ND 1.5 ND 1.7 ND ND ug/L 04/16/18 0.32 -- 1 ND ND ND 3.2 ND ND ND ND ND ND ND ND ND ND ND 3.0 ND ND ug/L 10/16/18 0.32 1.0 -- ND -- ND 2.4 ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 04/12/19 0.32 1.0 ND ND ND 1.4 ND ND ND ND ND ND ND ND ND ND ND 1.1 ND ND Xylenes (Total) ug/L 03/01/99 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND NC 2L = 500 ug/L ug/L 09/01/99 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND EPA MCL = 10000 ug/L ug/L 03/01/00 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 5 ND ND ND ND ND - ND ND ND ND ND - -- - -- - -- ND ug/L 03/01/02 -- -- 5 ND ND ND ND ND - ND ND ND ND ND ND -- ND -- - -- ND ug/L 09/01/02 -- - 5 ND ND ND ND ND - ND ND ND ND ND -- -- - -- - -- ND ug/L 04/15/03 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- - -- -- ND ug/L 10/01/03 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 05/01/05 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- - -- ND ug/L 10/01/05 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/01/06 - -- -- -- -- - -- ug/L 10/01/06 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/12/07 -- -- -- ND ND ND ND ND -- ND ND ND ND ND ND ug/L 09/26/07 -- -- -- ND ND ND ND ND -- ND -- ND ND ND -- -- -- -- - -- ND ug/L 04/29/08 0.67 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- - -- ND ug/L 12/01/08 0.4 -- 5 ND ND ND ND ND -- ND 3.1 J ND ND ND ND ND ug/L 04/17/09 0.4 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- ND ug/L 10/16/09 0.4 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND ug/L 04/28/10 0.22 -- 5 ND ND ND ND ND -- ND 1.8 J ND ND ND ND -- -- -- - -- ND ug/L 08/02/10 0.4 -- 5 -- ND ND ND -- - -- - ND ND -- - -- ND ND ND ND ND ug/L 10/11/10 0.4 -- 5 ND ND ND ND ND - ND 4.0 J ND ND ND ND -- - ND ND ND ND ug/L 05/09/11 2.1 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- -- - -- - ND ug/L 10/12/11 2.1 -- 5 ND ND ND ND ND -- ND 5.5 ND ND ND ND ND ND ND ND ND ND ug/L 04/17/12 0.45 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND ND ND ND ND ug/L 10/25/12 0.45 -- 5 ND ND ND ND ND -- ND 2.6 J ND ND ND ND ND ND ND ND ND ND ug/L 05/02/13 0.45 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/24/13 0.45 -- 5 ND ND ND ND ND ND ND 1.8 J ND ND ND ND ND ND ND ND ND ND ug/L 04/24/14 0.45 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/06/14 0.45 -- 5 ND ND ND ND ND ND ND 1.9 J ND ND ND ND ND ND ND ND ND ND ug/L 04/14/15 0.45 -- 5 ND ND ND ND ND ND ND ND ND ND ND -- ND ND ND ND ND ND ug/L 10/07/15 0.45 -- 5 ND -- ND ND ND ND ND 0.77 J ND ND ND ND ND ND ND ND ND ND ug/L 04/20/16 0.45 -- 5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 0.45 -- 5 ND -- ND ND ND ND ND 1.4 J ND ND ND ND ND ND ND ND ND ND ug/L 04/25/17 0.45 -- 5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 0.45 -- 5 ND -- ND ND ND ND ND 5.3 ND ND ND ND ND ND ND ND ND ND ug/L 04/16/18 0.45 -- 5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 0.45 3.0 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 1 04/12/19 1 0.45 1 3.0 ND ND I ND ND ND ND ND ND ND ND ND ND I ND I ND ND ND ND I ND 1668421.105 r> GOLFER 19 of 24 August 2019 TABLE4 Smmary of Grondwater Monitoring Resits Detected Constitents White Street Landfill - Phase 11, Permit No. 41-03 Greensboro, North Carolina Method Practical SWS Assessment Reporting Sample Upgradient Monitoring Wells Compliance Downgraient Monitoring Wells Monitoring Sentinel Monitoring Wells Detected Monitoring Constitent Units Date Detection Quantitation Reporting Well Limit Limit Limit Blanks MW-13 MW-14 II-1 II-2 II-3 114A II-5 II-6 II-7 II-7B II$ II-12 II-3B II-9 SMW-1 SMW4 SMW4 1,4-Dioxane ug/L 10/16/18 1.2 2.0 -- ND -- 220 2.8 ND 100 4.6 85 1.5 J ND 350 4.1 1.3 J ND ND ND 4.4 ND (NC 2L = 3 ug/L) (verification event) ug/L 02/20/19 1.2 2.0 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 8.4 ND u /L 04/12/19 1.2 2.0 ND ND 120 2.6 ND 83 2.4 6.3 1.6 J ND 290 ND 3.9 ND 4.9 2.2 12 ND Telrahydrofuran ug/L 10/12/11 0.8 -- -- ND ND 11 ND ND -- ND 34 ND ND 0.82 J ND -- -- - -- -- ND (No NC 2L) ug 04/17/12 0.8-- -- ND ND 4.4 ND ND -- ND 4 ND ND ND ND -- -- - -- -- ND (No EPA MCL) ug/L 10/25/12 0.8 -- -- ND ND ND ND ND -- ND ND ND ND ND ND -- ND ug/L 05/02/13 0.8 -- -- ND ND 5.5 ND ND -- ND ND ND 150 6.6 ND -- -- -- -- -- ND ug/L 09/24/13 0.8 -- -- ND ND 6.5 ND ND 10 ND 18 ND 18 6.4 ND -- -- -- -- -- ND ug/L 04/24/14 0.8 -- -- ND ND 4.9 ND ND -- ND ND ND 140 13 ND - -- -- -- -- ND ug/L 10/06/14 0.8 -- -- ND ND ND ND ND 11 ND 29 ND ND 9.4 ND ND -- -- -- -- ND ug/L 04/14/15 0.8 -- -- ND ND 8.2 ND ND 5.3 ND 1.0 ND 5.6 4.4 -- ND -- -- -- -- ND ug/L 10/07/15 0.8 -- -- ND -- 21 ND ND 7.2 ND 32 ND ND 9.8 -- ND ND ND ND ND ND ug/L 04/20/16 0.8 -- -- ND ND 7.1 ND ND 1.4 ND ND ND 50 7.0 ND ND ND ND ND ND ND ug/L 09/26/16 0.8 -- -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/25/17 0.8 -- -- ND ND 5.3 ND ND 6.7 ND ND ND 140 13 ND ND ND ND ND ND ND ug/L 10/17/17 0.53 -- -- ND -- 16 ND ND 4.2 ND 54 ND 20 12 ND ND ND ND ND ND ND ug/L 10/16/18 0.53 1.0 -- ND -- 5.1 ND ND ND ND 2.3 ND ND 9.7 ND -- ND u /L 04/12/19 1 0.53 1.0 1 ND ND 4.9 ND ND ND ND ND ND ND 11 ND ND Sulfide (total) mg/L 09/01/99 - -- 1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- - -- ND o mg -- -- 1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- - -- ND o mg -- -- 1 ND ND ND 1 ND -- ND ND ND ND ND -- -- -- -- - -- ND mg/L 09/01/02 -- -- 1 ND ND ND 5 ND -- ND ND ND ND ND -- -- -- -- - -- ND mg/L 10/01/03 -- -- 1 ND ND ND ND ND - ND ND ND ND ND -- -- -- -- - -- ND mg/L 09/01/04 -- -- 1 ND ND ND ND ND - ND ND ND ND ND -- -- -- -- - -- ND mg/L 10/01/05 -- -- 1 ND ND ND ND ND -- ND 2 ND ND ND -- -- -- -- -- -- ND mg/L 10/01/06 -- -- 1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND mg 09/26/07 -- -- 1 ND -- ND -- ND ND ND -- -- -- -- -- -- ND mg O5/O5/08 -- 1 -- -- ND ND ND -- -- - ND ND -- -- -- ND -- - -- ND mg/L 12/01/08 0.10 -- 1 ND ND ND ND ND - ND ND ND ND ND ND -- - -- - -- ND mg 10/16/09 -- 1 ND ND ND ND -- -- -- ND ND -- -- -- ND -- -- -- ND mg/L 04/29/10 0.031 -- 1 -- ND ND ND ND -- -- - ND ND -- -- -- ND -- - -- ND mg 08/02/10 0.031 1 ND ND ND ND - -- - ND ND -- - -- ND -- - -- ND mg/L 10/11/10 0.01 -- 1 ND ND ND ND ND - ND ND ND ND ND ND -- - ND ND ND ND mg/L 10/12/11 0.01 -- 1 ND ND ND ND ND - ND 0.012 J ND ND ND 0.013 J -- - -- - -- ND mg/L 10/25/12 0.01 - 1 ND ND ND ND ND - ND ND ND ND ND ND -- -- - -- -- ND mg/L 10/25/12 0.01 1 ND ND ND-- ND -- ND -- ND mg O5/02/13 -- -- ND ND -- ND -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 09/24/13 0.01 -- 1 ND ND ND ND ND ND 0.088 J ND ND ND ND ND -- - -- - -- ND mg 09/24/13 - -- ND ND - ND - -- - -- -- -- - -- ND -- ND -- ND mg/L 04/25/14 0.01 - 1 -- ND ND - ND - -- - -- -- -- -- -- ND -- ND -- ND -- ND ND -- ND - -- - -- -- ND - ND -- ND mg/L 10/06/14 0.01 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.04 J ND ND ND mg/L 04/14/15 0.01 1-- ND ND -- ND -- -- -- -- -- ND -- ND -- ND mg/L 10/07/15 0.01 -- 1 ND -- ND 0.059 J ND ND ND 0.059 J ND ND ND ND ND mg/L 04/18/16 0.01 -- 1 - ND ND - -- - -- - -- - -- - -- ND -- ND -- ND mg/L 09/26/16 0.01 - 1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND 0.36 J ND ND ND mg/L 04/25/17 0.01 -- 1 -- ND NDND __ __ __ __ __ __ __ __ __ __ND __ ND__ mg/L 10/17/17 0.01 -- 1 ND -- ND ND ND ND ND ND ND ND ND 0.042 J ND ND 0.6 J ND ND ND mg/L 04/16/18 0.01 -- 1 -- ND ND mg/L 10/16/18 0.01 0.1 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND m -- ND -- ND -- ND Chloride mg/L O5/05/08 2.4 - -- - - 450 B 12 -- - -- - 4.3 J 4.8 J - -- -- 6.0 -- -- -- -- NC 2L = 250 mg/L mg 10/16/09 � -- -- -- 3.3 J 410 11 -- -- -- -- 58 4.7 J -- -- -- 10 -- -- -- ND EPA MCL = 250 mg/L mg 04/29/10 � -- -- -- 3.9 J 390 12 -- - -- - ND 4.8 J -- -- -- 12 -- - -- ND mg/L 08/02/10 180 -- -- 3.7 J 410 12 -- - 16 4.8 J mg/L 10/25/12 4.3 -- -- - 2.6 B 570 B mg/L 05/02/13 4.3 - - - 2.7 B 340 B - -- - -- - - -- -- -- -- 13 B - 6.9 B -- -- 14 -- 7.8 -- ND mg/L 04/25/14 22 -- -- -- 2.8 J 440 -- -- -- -- -- -- _ -- -- -- 7.7 -- 7.3 -- ND m9 10/02/14 -- 3.1 J 560 -- -- -- -- -- - __ __ 14 -- 9.0 -- ND mg/L 04/14/15 22 -- -- -- 3.1 J 630 -- -- -- -- - -- -- -- 16 __ 11 __ ND mg/L 10/07/15 22 -- -- -- -- 570 -- ND mg/L 04/18/16 22 -- -- -- 2.3 J 460 -- -- -- - -- - -- -- -- - 14 - 10 -- ND mg/L 09/26/16 2.2 -- 510 -- -- -- 14 - 13 -- ND mg/L 04/25/17 2.9 -- -- -- 1.5 J 630 -- -- -- - -- - -- -- -- - 16 - 7.8 -- ND mg/L 10/17/17 2.2 -- -- -- -- 510 -- -- -- -- -- -- -- -- -- -- 17 -- 19 -- ND mg/L 04/16/18 2.2 -- -- -- ND 760 18 16 ND mg/L 10/16/18 2.2 5 -- -- -- 550 -- -- -- -- -- - -- -- -- -- 6.3 - 9.3 -- ND m 5 __ __ 3. 380 __ __ __ __ __ __ _ __ __ -- 23 -- 21 -- ND 1668421.105 r> GOLFER 20 of 24 August 2019 TABLE4 Smmary of Grondwater Monitoring Resits Detected Constitents White Street Landfill - Phase 11, Permit No. 41-03 Greensboro, North Carolina Method Practical SWS Assessment Reporting Sample Upgradient Monitoring Wells Compliance Downgraient Monitoring Wells Monitoring Sentinel Monitoring Wells Detected Monitoring Constitent Units Date Detection Quantitation Reporting Well Limit Limit Limit Blanks MW-13 MW-14 II-1 II-2 113 114A II-5 II-6 II-7 II-7B II-8 II-12 II-3B II-9 SMW-1 SMW3 SMW4 Nitrate as N mg OS/OS/08 -- -- ND ND -- -- -- -- 2.2 J ND -- -- -- 0.39 J -- -- -- ND NC 2L = 10 mg/L mg/L 10/16/09 0.0056 -- 10 -- 0.017 J 0.028 J ND -- -- -- 0.33 -- J 0.28 J -- -- -- 0.077 J -- -- -- ND EPA MCL = 10 mg/L mglL 04/29/10 -- 10 -- ND NO ND -- -- -- - NO 0.23 J -- -- -- 0.12 J -- - -- ND mg/L 08/02/10 0.025 -- 10 -- ND 0.062 J 0.029 J -- 0.13 J 0.14 J -- -- -- 0.13 J -- - -- ND mg/L 10/25/12 0.025 - 10 - ND 0.036 J - -- - -- - -- - -- - -- ND -- ND -- ND m9 05/02/13 0.025 10 ND NO- -- - -- - -- - -- - -- ND -- ND -- ND mg/L 09/24/13 0.025 -- 10 -- 0.17 J 0.046 J -ND - ND ND mg/L 04/25/14 0.025 -- 10 -- ND NO - -ND ND ND mg/L 10/02/14 0.025 -- 10 -- ND 0.054 J - -- -- -- - -- - -- -- -- ND -- ND -- ND mg/L 04/14/15 0.025 -- 10 -- ND NO ND 0.042 1 ND mg/L 10/07/15 0.025 -- 10 -- - 0.22 J mg/L 04/18/16 0.025 - 10 - ND NO - -- -- -- -- -- -- -- ND -- ND -- ND mg/L 09/26/16 0.025 -- 10 -- -- ND -- __ __ __ __ __ __ __ __ ND -- ND -- ND mg/L 04/25/17 0.025 -- 10 -- ND 0.046 J -- -- -- -- -- -- -- -- -- -- 0.16 J -- 1.4 J -- ND mg/L 10/17/17 0.025 - 10 -- -- 0.071 J - -- -- -- - -- - -- -- -- ND -- ND -- ND mg/L 04/16/18 0.025 - 10 -- ND 0.052 J - -- - -- - -- - -- -- -- 0.046 J -- ND -- ND mg/L 10/16/18 0.025 0.1 - -- -- 0.052 J - -- - -- - -- - -- -- -- 0.2 -- 2.4 -- ND mg/L 04/12/19 1 0.041 0.1 1-- -- NO ND -- - -- -- -- -- -- -- -- -- ND -- ND -- 0.042 Nitrite as N mg OS/OS/08 -- -- -- 0.015 B 0.013 B -- -- ---- NO 0.2 B -- -- -- 0.018 B -- -- -- ND mg/L 09/24/13 0.0043 -- 1 -- -- NO __ __ __ __ __ __ __ __ -- -- ND -- ND -- ND mg/L 04/25/17 0.017 -- 1 -- NO NO - -- - -- - -- - -- -- -- ND -- ND -- ND mg/L 10/17/17 0.017 - 1 -- -- NO - -- - -- - -- - -- -- -- ND -- ND -- ND mg/L 04/16/18 0.017 - 1 - ND NO - -- -- - -- - -- - -- -- ND - ND -- ND mg/L 10/16/18 0.017 0.1 -- - -- ND -- - -- - -- - -- - -- -- ND - ND -- ND m /L 04/12/19 0.017 0.1 -- -- -- ND -- - -- - -- - -- - -- -- ND - ND -- ND Sulfate as SO4 mg OS/OS/08 5 -- 5 -- -- 25 J 25 J - -- ---- 4.7 J -- -- -- -- 40 J -- -- -- ND NC 2L = 250 mg/L mg 10/16/09 7 -- 250 -- 2.0 J 12 J 27 J -- ---- - 23 J 100 J -- -- -- 16 J -- - -- ND EPA MCL = 250 mg/L mg/L 04/29/10 0.12 - 250 - 0.12 14 J 19 J -- - -- - 14 J 100 J - -- - 27 J - -- -- ND mg/L 08/02/10 0.12 -- 250 - 1.5 J 12 J 21 J -- -- 12 J 100 mg/L 10/25/12 0.04 - 250 -- 2.0 J 11 J - -- 12 J -- 22 J -- ND mg/L 05/02/13 0.04 - 250 -- 1.8 B 19 B - -- - -- - -- - -- -- -- 11 B -- 21 B -- ND mg/L 09/24/13 0.04 - 250 -- 1.7 J 14 J - -- 8.9 J -- 21 J -- ND mg/L 04/25/14 2.9 -- 250 - ND 20 JND __ __ __ __ __35 1__18 1__ mg/L 10/02/14 2.9 -- 250 - 2.9 14 J 12 1 22 1 ND mg/L 04/14/15 2.9 -- 250 -- 2.9 22 J -- -- 12 J -- 26 J -- ND mg/L 10/07/15 2.9 -- 250 -- -- 15 J -- mg/L 04/18/16 2.9 - 250 - 2.9 16 J - -- - -- - -- - -- -- -- 36 J - 26 J -- ND mg/L 09/26/16 2.9 - 250 - - 11 J - - -- -- -- -- - 13 - 27 J -- ND mg/L 04/25/17 5.8 -- 250 -- 0.25 J 31 J -- -- -- -- -- -- -- -- -- -- 20 J - 23 J -- ND mg/L 10/17/17 2.9 -- 250 -- -- 8.9 J -- -- -- -- - -- - -- -- -- 14 J -- 24 J -- ND mg/L 04/16/18 2.9 -- 250 - ND NO - -- - -- - -- - -- -- -- 18 J -- 23 J -- ND mg/L 10/16/18 2.9 5 - -- - NO - -- - -- - -- - -- -- -- 19 -- 19 -- ND mg/L 04/12/19 1 2.9 5 1- -- ND 16 - -- - -- - -- - -- -- - 59 - 27 -- ND Total Alkalinity as CaCO3 mg 10/16/09 -- -- -- 19 320 370 - -- --- 59 99 -- -- - 190 - -- -- ND (No NC 2L) mg/L 04/29/10 32 -- -- -- 16 350 330 -- 70 110 110 ND (No EPA MCL) mg/L 08/02/10 40 -- -- -- 20 580 460 -- 51 100 mg/L 10/25/12 60 -- -- -- 24 740 mg/L 05/02/13 70 -- -- -- 17 570 mg/L 09/24/13 70 -- -- -- 26 780 mg/L 04/25/14 70 -- -- -- 19 600 mg/L 10/02/14 70 -- -- -- 24 830 -- - -- - -- - -- - -- - 420 - 310 -- ND mg/L 04/14/15 140 -- -- -- 21 690 mg/L 10/07/15 84 -- -- -- -- 1000 mg/L 04/18/16 140 -- -- -- 15 840 mg/L 09/26/16 70 -- -- -- - 960 mg/L 04/25/17 14 -- -- -- 28 880 -- - -- - -- - -- - -- - 400 - 81 -- ND mg/L 10/17/17 70 -- -- -- -- 1100 -- - -- - -- - -- - -- - 410 - 370 -- ND mg/L 04/16/18 14 -- -- -- 19 810 -- - -- - -- - -- - -- - 310 - 400 -- ND mg/L 10/16/18 14 15 -- -- -- 1000 -- - -- - -- - -- - -- -- 77 - 120 -- ND mg/L 04/12/19 1 14 15 1-- -- ND 900 -- - -- - -- - -- - -- -- 81 - 370 -- ND Total Organic Carbon mg 05/05/08 -- -- -- -- 15 2.2 - -- - -- 1.3 ND - -- - 9.2 - -- -- ND (No NC 2L) mg/L 10/16/09 0.32 -- -- -- ND 30 0.88 J _ -- ..__ _ 73 25 _ __ _ 2.5 _ __ __ ND (No EPA MCL) mg 10/16/09 0.32-- -- -- ND 30 0.88 1 - -- -- -- 7.3 2.5 -- -- -- 2.5 - -- -- ND mg/L 04/29/10 0.32 -- -- -- ND 23 2.0 -- - 3.5 2.3 - -- -- 4.5 - -- -- ND mg/L 08/02/10 0.32 -- -- -- 0.40 J 34 1.3 -- - 2.8 2.3 - -- -- 3.0 -- - -- ND mg/L 10/25/12 0.32 -- -- -- 0.55 J 45 mg/L 05/02/13 0.32 -- -- -- 0.32 19 mg/L 09/24/13 0.32 -- -- -- 0.32 48 mg/L 04/25/14 0.32 -- -- -- ND 36 -- - -- -- -- ND mg/L 10/02/14 0.32 -- -- -- 0.51 J 48 - - -- -- -- 4.9 - 1.5 -- ND mg/L 04/14/15 0.34 -- -- - 0.34 33 - -- -- -- -- - 1.4 - 2.0 -- ND mg/L 10/07/15 0.34 -- -- ND -- 46 -- - -- - - - -- -- NO - -- ND 190 NO ND mg/L 04/18/16 0.34 -- -- -- 0.48 J 37 mg/L 09/26/16 0.34 -- -- -- - 58 ND ND ND mg/L 04/25/17 0.34 -- -- -- ND 28 -- -- -- -- - - -- -- -- -- 4.3 -- 2.4 -- ND mg/L 10/17/17 0.34 -- -- -- -- 69 -- -- -- -- - - -- -- -- - 2.6 -- 3.3 -- ND mg/L 04/16/18 0.34 -- -- -- 0.51 J 37 -- - -- - - - -- -- -- - 2.2 - 3.0 -- ND mg/L 10/16/18 0.34 1 -- -- -- 56 -- -- -- -- - - -- -- -- -- 5.2 -- 1.0 -- ND mg/L 04/12/19 0.34 1 -- -- 1.4 39 -- - -- - -- - -- -- -- -- 3.8 - 7 -- ND 1668421.105 r> GOLFER 21 of 24 August 2019 TABLE4 Smmary of Grondwater Monitoring Resits Detected Constitents White Street Landfill - Phase 11, Permit No. 41-03 Greensboro, North Carolina Method Practical SWS Assessment Reporting Sample Upgradient Monitoring Wells Compliance Downgraient Monitoring Wells Monitoring Sentinel Monitoring Wells Detected Monitoring Constitent Units Date Detection Quantitation Reporting Well Limit Limit Limit Blanks MW-13 MW-14 II-1 II-2 113 114A II-5 II-6 II-7 II-7B II-8 II-12 II-3B II-9 SMW-1 SMW3 SMW4 Pyruvic Acid mg 10/16/09 -- -- -- ND ND ND -- ND ND -- -- -- -- -- -- ND -- -- -- ND mg/L 04/29/10 0.14 -- -- -- ND ND ND -- -- -- -- ND ND -- -- -- ND -- -- -- ND mg/L 08/02/10 0.14 -- -- -- ND ND ND ND ND mg/L 10/25/12 0.01 -- -- -- 0.012 J 0.02 J mg/L 05/02/13 0.01 -- -- -- ND ND mg/L 09/24/13 0.01 -- -- -- ND ND mg/L 04/25/14 0.01 -- -- -- ND ND mg/L 10/02/14 0.01 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND ND ND mg/L 04/14/15 0.01 -- -- -- ND ND ND ND ND mg/L 10/07/15 0.012 -- -- -- - -- -- -- -- -- NDND -- - -- -- mg/L 04/18/16 0.012 -- -- -- 0.018 J ND -- -- -- -- - -- - ---- -- 0 ND -- 0.015 J -- ND mg/L 09/26/16 0.012 -- -- -- - ND ND ND ND mg/L 04/25/17 0.012 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 10/17/17 0.012 -- -- -- -- ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 04/16/18 0.012 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 10/16/18 0.012 0.07 -- -- -- ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND m /L 04/12/19 1 0.021 0.07 1-- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND Lactic Acid/HIBA (2-Hydroxyisobutyric Acid) mg/L 10/16/09 0.088 -- -- -- ND ND 0.17 J -- -- -- - ND ND -- - ND -- ND mg 04/29/10 -- -- -- ND -- -- -- ND ND -- -- -- ND ND -- ND -- -- ND m9 08/02/10 -- -- -- ND -- -- -- -- ND ND ND ND -- -- -- ND -- -- -- ND m9 10/25/12 -- -- -- ND - -- - -- - ND -- - -- -- -- ND -- ND -- ND m9 O5/02/13 -- -- -- ND ND -- - -- -- - -- - -- - -- ND -- ND -- ND m9 09/24/13 -- -- -- 0.14 ND -- - -- -- - -- - -- - -- ND -- ND -- ND mg/L 04/25/14 0.095 -- -- -- ND ND - -- - - -- - -- - -- -- ND - ND -- ND mg/L 10/02/14 0.095-- ND ND -- -- -- -- -- ND -- ND -- ND mg 04/14/15 -- ND -- -- -- -- ND -- -- -- -- -- ND -- ND -- ND mg/L 10/07/15 0.095 -- -- -- -- 4.7 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND mg/L 04/18/16 0.095 ND 7.5-- ND -- ND -- ND mg/L 09/26/16 0.095 -- -- -- -- ND -- -- -- ND -- ND -- ND mg/L 04/25/17 0.095 -- -- -- ND 2.8 ND ND ND mg/L 10/17/17 0.095 -- -- -- -- ND -- - - - -- -- -- -- -- -- -- -- ND ND ND mg/L 04/16/18 0.095 -- -- -- ND 4.5 ND ND ND mg/L 10/16/18 0.095 0.14 -- -- -- ND -- - - - -- -- -- -- -- -- ND -- ND -- ND m /L 04/12/19 1 0.13 0.14 1-- -- ND ND -- - - -- -- -- -- -- -- -- ND -- ND -- ND Acetic Acid mg 10/16/09 7 -- -- -- 0.58 - - -- 25 ND -- 0.64 0.53 -- -- -- 0.39 J -- -- -- ND mg/L 04/29/10 0.083 -- -- -- ND ND ND - - -- -- ND ND -- -- -- ND -- -- -- ND mg/L 08/02/10 0.083 -- -- -- ND ND ND -- ND ND ND ND mg/L 10/25/12 0.031 -- -- -- 0.53 ND mg/L 05/02/13 0.031 -- -- - ND 28 mg/L 09/24/13 0.031 -- -- - 0.14 ND mg/L 04/25/14 0.031 -- -- - ND ND mg/L 10/02/14 0.031 -- -- -- ND 65 - - - -- - -- -- - -- 0.088 ND ND mg/L 04/14/15 0.031 -- -- -- 0.16 J - - -- - -- -- -- -- ND -- -- ND 0.25 -- ND mg/L 10/07/15 0.16 -- -- -- - 31 -- -- -- -- -- -- - - - -- ND mg/L 04/18/16 0.16 -- -- -- ND 31 ND mg/L 09/26/16 0.16 -- -- -- 54 mg/L 04/25/17 0.16 -- -- -- 0.68 15 -- - -- - -- - -- - -- - 1.4 - 1.3 -- ND mg/L 10/17/17 0.16 -- -- -- -- 45 -- - -- - -- - -- - -- -- ND - 0.18 J -- ND mg/L 04/16/18 0.16 -- -- -- ND 16 -- -- -- -- -- -- -- -- -- -- ND - 0.19 J -- ND mg/L 10/16/18 0.16 0.2 -- -- -- 20 -- -- -- -- -- -- -- -- -- -- ND - ND -- ND -- ND -- ND -- ND Propionic Acid mg 10/16/09 -- -- -- ND ---- ND ND ND ND -- -- -- -- -- ND - -- - ND mg 04/29/10 -- -- -- ND - -- -- ND ND -- -- -- ND ND -- ND -- -- -- ND m9 08/02/10 -- -- -- ND -- -- -- -- ND ND ND ND -- -- -- ND -- -- -- ND m9 10/25/12 -- ND -- -- -- -- 50 -- -- -- -- -- ND -- ND -- ND m9 O5/02/13 -- -- -- ND -- -- - -- - ND -- - -- -- -- ND -- ND -- ND m9 09/24/13 - -- -- ND - -- - -- - ND -- - -- -- -- ND -- ND -- ND mg/L 04/25/14 0.063 -- -- -- ND 22 - -- -- - -- - -- -- -- -- ND - ND -- ND -- ND ND - -- -- -- -- ND -- ND -- ND m9 04/14/15 -- -- -- ND 21 - -- -- -- -- - -- - -- -- ND -- ND -- ND mg/L 10/07/15 0.065 -- -- -- -- 29 -- - -- - -- - -- -- -- -- -- -- -- -- ND -- ND -- ND -- ND mg/L 09/26/16 0.065 -- -- -- -- 44 -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 04/25/17 0.065 -- -- -- ND ND 0.14 ND ND mg/L 10/17/17 0.065 -- -- -- -- ND -- - -- - -- - -- -- -- -- - -- ND ND ND mg/L 04/16/18 0.065 -- -- -- ND 11 ND 0.13 ND mg/L 10/16/18 0.065 0.1 -- -- -- ND -- - -- -- -- -- -- ND ND -- ND m /L 04/12/19 0.065 0.1 -- -- 0.57 ND -- - -- - -- - -- -- -- -- ND - ND -- ND 1668421.105 r> GOLFER 22 of 24 August 2019 TABLE4 Smmary of Grondwater Monitoring Resits Detected Constitents White Street Landfill - Phase 11, Permit No. 41-03 Greensboro, North Carolina Method Practical SWS Assessment Reporting Sample Upgradient Monitoring Wells Compliance Downgraient Monitoring Wells Monitoring Sentinel Monitoring Wells Detected Monitoring Constitent Units Date Detection Quantitation Reporting Well Limit Limit Limit Blanks MW-13 MW-14 II-1 II-2 113 114A II-5 II-6 II-7 II-7B II-8 II-12 II-3B II-9 SMW-1 SMW3 SMW4 Hexanoic Acid mg 10/16/09 -- -- -- ND ND ND -- ND ND -- -- -- -- -- -- ND -- -- -- ND mg/L 04/29/10 0.23 -- -- -- ND ND ND -- -- -- -- ND ND -- -- -- ND -- -- -- ND mg/L 08/02/10 0.23 -- -- -- ND ND ND ND ND ND ND mg/L 10/25/12 0.078 -- -- -- ND ND mg/L 05/02/13 0.078 -- -- -- ND ND mg/L 09/24/13 0.078 -- -- -- ND 2.4 mg/L 04/25/14 0.078 -- -- -- ND ND mg/L 10/02/14 0.078 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND ND ND mg/L 04/14/15 0.078 -- -- -- ND ND ND ND ND mg/L 10/07/15 0.26 -- -- -- - ND ND mg/L 04/18/16 0.26 ND ND ND ND ND mg/L 09/26/16 0.26 -- -- -- - ND ND ND ND mg/L 04/25/17 0.26 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 10/17/17 0.26 -- -- -- -- ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 04/16/18 0.26 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND ug/L 10/16/18 0.26 0.5 -- -- -- ND -- -- -- -- -- ND -- ND -- ND u -- ND ND -- -- -- -- -- ND -- ND -- ND iso-Hexanoic Acid mg/L 10/16/09 0.41 -- -- -- ND -- -- ND ND -- - ND ND -- -- -- ND -- - -- ND -- ND ND ND -- -- -- ND ND -- 0.95 J -- -- -- ND m9 08/02/10 -- -- -- ND -- -- -- 2.6 ND -- -- -- ND ND -- ND -- -- -- ND m9 10/25/12 -- ND -- -- -- -- - ND -- -- -- -- -- ND -- ND -- ND m9 O5/02/13 -- -- -- ND -- -- - -- - ND -- - -- -- -- ND -- ND -- ND mg 09/24/13 - -- -- ND - -- - -- - ND -- -- -- -- -- ND -- ND -- ND mg/L 04/25/14 0.08 - -- -- ND ND - -- - -- -- - -- -- -- -- ND - ND -- ND -- ND ND - -- -- -- -- ND -- ND -- ND mg 04/14/15 -- 0.36 J -- -- -- -- ND -- -- -- -- -- -- 0.61 -- 0.36 J -- ND mg/L 10/07/15 0.44 -- -- __ __ ND __ __ __ __ __ __ __ __ __ __ __ __ __ __ ND mg/L 04/18/16 0.44-- ND ND -- - -- -- -- ND -- ND -- ND mg/L 09/26/16 0.44 -- -- -- -- ND -- -- -- -- - -- - -- -- ND -- ND -- ND mg/L 04/25/17 0.44 -- -- -- ND ND ND ND ND mg/L 10/17/17 0.44 -- -- -- -- __ __ __ __ __ __ __ __ __ NDND __ND__ND__ mg/L 04/16/18 0.44 -- -- -- ND __ __ __ __ __ __ __ __ __ NDND __ND__ND__ ug/L 10/16/18 0.44 0.5 -- -- -- ND -- -- -- -- -- ND -- ND -- ND u /L 04/12/19 1 0.44 0.5 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND Pentanoic Acid mg 10/16/09 -- -- -- ND ND ND -- - ND ND -- -- -- -- -- ND - -- -- ND mg/L 04/29/10 0.27 -- -- -- ND ND ND - -- -- -- ND ND -- -- -- ND -- -- -- ND mg/L 08/02/10 0.27 -- -- -- ND ND ND -- ND ND ND ND mg/L 10/25/12 0.052 -- -- -- ND ND ND ND ND mg/L 05/02/13 0.052 -- -- -- ND ND ND ND ND mg/L 09/24/13 0.052 -- -- -- ND ND ND ND ND mg/L 04/25/14 0.052 -- -- -- ND ND ND ND ND mg/L 10/02/14 0.052 -- -- -- ND 2.4 - -- -- -- -- -- -- -- -- ND ND ND mg/L 04/14/15 0.052 -- -- -- ND ND ND ND ND mg/L 10/07/15 0.11 __ __ __ __ ND __ __ __ __ __ __ __ __ __ __ __ __ __ __ ND mg/L 04/18/16 0.11 -- -- -- ND ND ND ND ND mg/L 09/26/16 0.11 -- -- -- -- ND -- -- -- ND -- ND -- ND mg/L 04/25/17 0.11 -- -- -- ND ND ND ND ND mg/L 10/17/17 0.11 __ __ __ __ ND __ _ __ __ __ __ __ __ __ __ __ __ ND ND ND mg/L 04/16/18 0.11 -- -- -- ND __ __ __ __ __ __ __ __ __ NDND __ND__ND__ ug/L 10/16/18 0.11 0.2 ND-- ND - ND -- ND -- ND ND -- -- -- -- -- ND -- ND -- ND Ethene mg 10/16/09 -- -- -- ND -- -- ND ND ND ND -- -- -- -- -- ND - -- - ND mg 04/29/10 -- -- -- ND - -- ---- ND ND ND ND -- -- -- ND -- -- -- ND m9 08/02/10 -- -- -- ND -- -- -- -- ND ND ND ND -- -- -- ND -- -- -- ND m9 10/25/12 -- -- -- ND -- -- - -- - ND -- - -- -- -- ND -- ND -- ND m9 O5/02/13 -- -- -- ND ND -- - -- -- - -- - -- - -- ND -- ND -- ND m9 09/24/13 -- -- -- ND - -- - -- - ND -- - -- -- -- ND -- ND -- ND mg/L 04/25/14 0.0015 -- -- -- ND ND -- - -- - -- - -- -- -- -- ND - ND -- ND -- ND ND -- -- -- -- -- ND -- ND -- ND mg 04/14/15 -- ND -- -- -- -- ND -- -- -- -- -- ND -- ND -- ND mg/L 10/07/15 0.00062 -- -- -- -- ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND -- ND ND -- -- -- -- -- ND -- ND -- ND m9 09/26/16 0.00038-- -- -- -- 0.0015 -- -- -- -- -- ND -- ND -- ND mg/L 04/25/17 0.0015 -- -- -- ND ND -- - -- - -- - -- -- -- -- ND - ND -- ND mg/L 10/17/17 0.0015 -- -- -- -- ND -- ND - ND -- ND mg/L 04/16/18 0.0015 -- -- -- ND ND ND ND ND mg/L 10/16/18 0.0015 0.003 -- -- -- ND ND ND ND m /L 1 04/12/19 1 0.0015 1 0.003 1 1 ND I ND I I ND ND I ND 1668421.105 r> GOLFER 23 of 24 August 2019 TABLE4 Smmary of Grondwater Monitoring Resits Detected Constitents White Street Landfill - Phase 11, Permit No. 41-03 Greensboro, North Carolina Detected Monitoring Constitent Reporting Units Sample Date Method Detection Limit Practical Quantitation Limit SWS Reporting Limit Upgradient Monitoring Wells Compliance Downgraient Monitoring Wells Assessment Monitoring Well Sentinel Monitoring Wells Blanks MW-13 MW-14 II-1 II-2 113 114A II-5 II-6 II-7 II-713 II-8 II-12 II-313 II-9 SMW-1 SMW3 SMW4 Methane mg OS/OS/08 -- -- -- -- 0.135 3.49 -- 0.009 0.003 -- -- -- -- -- -- 0.002 - -- -- ND mg/L 10/16/09 0.0002 -- -- -- 0.001 0.266 1.06 -- 0.45 0.023 -- -- -- 0.085 -- - -- ND mg/L 04/29/10 0.0002 -- -- -- ND 0.007 1.47 -- - 0.029 ND -- -- -- 0.006 -- - -- ND mg/L 08/02/10 0.0002 - -- -- ND 0.213 1.30 0.010 0.003 -- -- -- 0.03 -- - -- ND mg/L 10/25/12 0.0043 -- -- -- ND 0.351 -- -- 0.00348 -- 0.0731 -- ND mg/L 05/02/13 0.0004 -- -- -- ND 0.00412 -- -- ND -- 0.0332 -- ND mg/L 09/24/13 0.0004 -- -- -- ND 0.0534 - -- -- -- -- 0.0113 - 0.0542 -- ND mg/L 04/25/14 0.0004 -- -- -- ND 20.8 -- - -- -- -- -- -- -- -- -- ND - 23 -- ND mg/L 10/02/14 0.0022 -- -- -- 0.00044 0.211 -- -- 0.0226 -- 0.0968 -- ND mg/L 04/14/15 0.00044 -- -- -- 0.000706 J 0.00509 -- -- - -- -- -- -- -- -- -- 0.00187 -- 0.0273 -- ND mg/L 10/07/15 0.0044 -- -- -- - 0.277 ND mg/L 04/18/16 0.00044 -- -- -- ND ND - - -- -- - -- - -- -- -- -- -- 0.00316 0.043 ND mg/L 09/26/16 0.00044 -- -- -- - 0.0778 0.0258 0.0773ND mg/L 04/25/17 0.00044 -- -- -- 0.00214 0.0345 -- -- -- -- -- -- -- -- 0.000621 J -- 0.00112 -- ND mg/L 10/17/17 0.00044 - -- - - 0.129 -- -- -- -- -- -- -- -- -- -- 0.0243 -- 0.155 -- ND mg/L 04/16/18 0.00044 - -- - ND 0.0209 -- -- -- -- -- -- -- -- -- -- 0.00142 -- 0.165 -- ND mg/L 10/16/18 0.00045 0.001 -- - - 0.0154 -- -- -- -- -- -- -- -- -- -- 0.00248 -- 0.003 -- ND m /L 1 04/12/19 1 0.00045 1 0.001 1-- -- ND 1 0.0224 -- -- -- -- -- -- -- -- -- -- 0.00628 -- 0.056 -- ND Notes: mg/L = milligrams per liter ug/L = micrograms per liter nM = nano mols NC 2L = North Carolina Water Quality Standard IMAC = Interim Maximum Allowable Concentration (under NC 2L Rules) EPA MCL = United States Environmental Protection Agency Maximum Contaminant Limit Prior to the November 2018 event, J flags are estimated values below the SWS Reporting limit. Beginning with the November 2018 event, J flags are estimated J = values between MDL and PQL. B = blank -qualified data ND = not detected above the laboratory detection limit or stated reporting limit - = no data available or no limit established # = EPA Action Level = EPA Secondary MCL Blanks = field, trip and method blanks Bold = concentrations above applicable IMAC and/or NC 2L have been bolded. Shaded = concentrations above applicable EPA MCL have been shaded. MDL = laboratory method detection limit Data prior to April 2017 provided by S&ME Engineering Laboratory method blank data was unavailable for data prior to April 2017. However, B flags for the 04/16/09, 10107109, and 10/11/10 were present on laboratory electronic files. The following dilutions were noted for the April 2019 event: Thallium - 5x at MW-14, and 2x at II-1, II-2, II-3, II-4A, II-5, II-6, II-7, II7B II-8, II-12, and MW-13; Antimony- 5x at MW-14, and 2x at II-1, II-2, II-3, II-4A, II-5, II-6, II-7, II7B II-8, II-12, and MW-13; Chloride - 10x at II-1; Total Alkalinity as CaCO3 - 5x at II-1 and 2x at II-9 and SMW-3; 1,4-Dioxane - 1 Ox at II-8 and 5x at II-1, II4A SWS Reporting Limit = NCPQL prior to 2007 and NCSWSL starting on 01/18/07 1668421.105 r> GOLFER 24 of 24 August 2019 1668421.105 TABLES Summary of Groundwater Field Parameters White Street Landfill - Phase 11, Permit No. 41-03 Greensboro, North Carolina Upgradient Monitoring Wells Compliance Downgraient Monitoring Wells Assessment Sentinel Monitoring Wells Detected Monitoring Reporting Sample Monitoring Well Constituent/Parameter Units Date MW-13 MW-14 II-1 11.2 11.3 114A 115 11.6 II-7 II-7B II-8 11.12 11.313 11.9 SMW-1 SMW-3 SMW4 pH (Field) S.U. 03/25/99 5.94 6.82 5.69 5.98 6.17 NI 5.92 6.39 5.99 NI 6.48 NI NI NI NI NI NI S.U. 09/22/99 6.15 6.05 5.77 6.65 6.12 NI 5.94 6.24 6.25 NI 6.49 NI NI NI NI NI NI S.U. 03/27/00 6.61 7.76 - 6.27 6.09 NI 6.34 7.11 6.06 NI 6.39 NI NI NI NI NI NI S.U. 09/13/00 6.70 6.62 - 6.67 6.67 NI 6.49 6.72 6.41 NI 6.39 NI NI NI NI NI NI S.U. 03/13/01 6.55 5.71 -- 7.21 6.38 NI 6.01 6.01 5.31 -- 6.31 NI NI NI NI NI NI S.U. 09/13/01 6.29 5.20 6.09 6.88 6.09 NI 6.03 6.43 6.04 10.71 6.28 NI NI NI NI NI NI S.U. 03/08/02 7.48 5.76 6.21 7.06 6.10 NI 6.05 6.53 5.57 10.15 6.38 NI NI NI NI NI NI S.U. 09/18/02 6.44 6.65 6.25 7.01 6.17 NI 6.19 6.45 5.70 10.59 6.88 NI NI NI NI NI NI S.U. 04/15/03 - -- - -- - NI - -- - -- - NI NI NI NI NI NI S.U. 10/15/03 6.75 5.64 6.33 7.27 6.37 NI 6.18 6.42 5.63 10.76 6.88 NI NI NI NI NI NI S.U. 03/24/04 8.02 7.38 8.20 8.32 8.07 NI 8.65 7.94 7.67 10.89 7.67 NI NI NI NI NI NI S.U. 09/22/04 6.96 6.17 6.43 7.13 6.43 NI 6.47 6.63 5.87 7.33 7.33 NI NI NI NI NI NI S.U. 05/09/05 8.58 8.16 8.01 8.74 8.37 NI 8.47 8.04 8.03 10.77 8.11 NI NI NI NI NI NI S.U. 10/11/05 6.50 5.52 5.95 7.22 6.11 NI 6.00 6.41 5.48 11.30 6.18 -- NI -- NI NI NI S.U. 04/24/06 - -- - -- - NI - -- - -- - -- NI -- NI NI NI S.U. 10/19/06 - 5.42 6.02 6.85 5.96 NI 6.02 6.35 5.29 11.16 6.18 -- NI -- NI NI NI S.U. 04/12/07 6.35 5.16 6.39 7.07 6.13 NI 6.06 6.45 5.62 11.17 6.28 -- NI -- NI NI NI S.U. 09/26/07 6.49 5.19 6.10 7.06 5.90 NI 6.03 6.28 5.58 11.20 6.11 -- NI -- NI NI NI S.U. 04/29/08 6.48 5.66 6.31 6.86 5.93 NI 6.44 5.53 9.50 10.81 6.27 6.54 NI -- NI NI NI S.U. 12/03/08 7.29 6.47 7.04 7.55 6.00 NI 7.10 6.35 6.10 11.63 6.90 -- NI -- NI NI NI S.U. 04/17/09 7.29 6.47 7.04 7.55 6.62 NI 7.10 6.35 6.10 11.63 6.90 7.74 NI -- NI NI NI S.U. 10/13/09 9.18 8.69 8.58 9.51 8.39 NI 8.71 8.89 8.29 13.60 8.53 9.15 NI -- NI NI NI S.U. 04/28/10 6.60 5.35 6.23 6.84 5.79 NI 6.24 6.41 5.50 10.49 6.18 6.68 NI 6.14 NI NI NI S.U. 08/02/10 - -- 6.87 7.48 - NI - -- 6.15 11.14 - -- NI 7.03 6.57 7.40 6.54 S.U. 10/11/10 7.50 6.44 6.95 7.54 6.62 NI 7.05 7.38 6.28 11.41 7.04 7.46 NI 6.99 6.47 7.61 6.72 S.U. 05/11/11 - -- - -- - NI - -- - -- - -- NI -- -- -- - S.U. 10/06/11 7.61 6.25 6.87 7.55 6.29 NI 7.06 7.43 5.96 12.24 7.00 7.65 6.95 6.99 5.46 7.38 6.31 S.U. 04/17/12 7.83 6.81 7.25 7.90 6.58 NI 7.73 7.46 6.20 12.21 7.33 8.02 -- -- -- -- - S.U. 10/22/12 7.88 6.43 7.48 8.37 6.91 NI 8.15 8.16 6.67 12.70 7.78 7.79 - -- - -- - S.U. 04/24/13 8.29 6.83 7.71 8.37 7.16 NI 7.83 7.84 6.90 12.94 7.37 8.38 7.84 8.01 7.84 8.14 6.95 S.U. 09/10/13 8.33 6.71 7.30 8.13 6.78 7.11 7.67 7.81 7.14 12.31 7.16 7.96 7.58 7.65 6.76 7.93 7.13 S.U. 04/23/14 8.40 7.75 7.82 7.92 7.04 7.41 7.72 7.06 7.29 12.27 6.56 7.82 8.41 7.26 8.13 8.86 8.21 S.U. 10/03/14 7.69 6.55 7.28 7.54 6.69 6.91 7.14 7.44 6.62 10.39 7.14 7.79 7.45 7.43 7.53 7.65 7.08 S.U. 04/14/15 6.76 5.70 6.33 6.75 5.77 5.92 6.27 5.85 5.71 9.37 6.22 6.61 6.23 6.33 5.76 6.54 6.32 S.U. 10/05/15 6.47 -- 6.02 6.56 5.80 5.82 6.34 6.66 5.73 8.83 6.00 6.39 6.09 6.09 5.27 6.21 5.51 S.U. 04/19/16 6.36 4.90 6.29 6.41 5.66 5.96 6.22 5.98 5.54 9.97 6.10 6.46 5.90 5.57 - -- - S.U. 09/26/16 6.54 -- 6.20 6.00 5.63 5.90 6.22 6.58 5.58 9.22 6.07 6.42 6.16 6.11 5.68 6.45 5.83 S.U. 03/21/17 - -- 6.24 6.50 - 5.78 - 6.40 5.52 -- -- -- - -- -- -- -- S.U. 04/25/17 6.46 5.45 6.16 6.47 5.56 5.68 6.28 5.52 4.88 8.92 6.15 6.49 5.94 5.93 5.64 5.98 5.93 S.U. 10/17/17 6.55 -- 6.28 6.44 5.73 5.99 6.39 6.74 5.46 8.52 7.58 6.58 6.21 6.16 5.89 6.53 6.01 (verification event) S.U. 12/21/17 -- -- 6.29 -- 5.63 -- -- 6.59 -- -- -- -- -- -- -- -- -- S.U. 04/16/18 6.50 5.58 6.37 6.31 5.45 5.72 6.19 5.92 5.55 7.72 6.08 6.32 6.25 6.24 5.92 6.45 6.10 S.U. 10/16/18 6.39 -- 6.29 6.52 5.53 5.85 6.23 6.47 5.44 7.72 6.21 6.61 6.37 5.86 5.39 5.96 5.89 (verification event) S.U. 02/20/19 - -- - -- 5.66 S.U. 04/09/19 6.67 4.74 6.56 6.47 5.67 5.96 6.38 5.76 5.43 6.70 6.16 6.90 6.20 5.69 6.28 6.43 6.40 Specific Conductance (Field) us/cm 05/25/99 299 81 771 1475 2007 NI 599 1556 106 -- 594 NI NI NI NI NI NI us/cm 09/22/99 320 24 833 609 141 NI 580 752 63 -- 55 NI NI NI NI NI NI uS/cm 03/27/00 353 101 - 571 970 NI 540 204 89 -- 604 NI NI NI NI NI NI us/cm 09/13/00 335 44 - 595 275 NI 553 436 96 -- 604 NI NI NI NI NI NI us/cm 03/13/01 7520 19102 - 6223 6128 NI 11296 9121 8287 -- 9472 NI NI NI NI NI NI us/cm 09/13/01 88838 173392 59174 54857 40741 NI 53504 43038 183942 86446 33529 NI NI NI NI NI NI us/cm 03/08/02 676 223 1497 1298 464 NI 935 896 311 578 1365 NI NI NI NI NI NI us/cm 09/18/02 658 142 1591 1200 356 NI 862 2987 163 572 1351 NI NI NI NI NI NI us/cm 04/15/03 - -- - -- - NI - -- - -- - NI NI NI NI NI NI us/cm 10/15/03 480 44 1308 820 808 NI 662 1970 113 794 1289 NI NI NI NI NI NI us/cm 03/24/04 428 56 221 845 1327 NI 802 1411 137 851 867 NI NI NI NI NI NI us/cm 09/22/04 472 46 1800 958 530 NI 732 1491 128 468 1448 NI NI NI NI NI NI us/cm 05/09/05 434 45 1610 970 1109 NI 785 2270 187 920 1520 NI NI NI NI NI NI us/cm 10/11/05 576 92 1960 1123 482 NI 871 4450 295 966 1690 -- NI -- NI NI NI us/cm 04/24/06 - -- - -- - NI - -- - -- - -- NI -- NI NI NI us/cm 10/19/06 - 57 2210 1120 465 NI 952 4110 152 890 2020 -- NI -- NI NI NI us/cm 04/12/07 514 47 2180 1040 434 NI 868 2070 242 879 2110 -- NI -- NI NI NI us/cm 09/26/07 582 50 2300 1035 414 NI 891 1010 246 885 2120 -- NI -- NI NI NI us/cm 04/29/08 45.7 7 2700 108 453 NI 34 13.1 9.5 70.3 238 121.7 NI -- NI NI NI us/cm 12/03/08 5390 71 2640 1053 442 NI 385 114 160 648 2660 -- NI -- NI NI NI us/cm 04/17/09 539 71 2640 1053 442 NI 385 114 160 648 2660 1.06 NI -- NI NI NI us/cm 10/13/09 552 70 2820 1145 457 NI 707 4110 492 639 2730 2.83 NI NI NI NI us/cm 04/28/10 439 42 2320 919 388 NI 536 2460 242 520 2370 909 NI 497 NI NI NI us/cm 08/02/10 - -- 2460 922 - NI - -- 194 505 - -- NI 641 207 478 1021 us/cm 10/11/10 446 60 2590 177 397 NI 615 3080 168 538 2530 1028 NI 535 158 498 858 us/cm 05/11/11 -- -- -- -- -- NI -- -- -- -- -- -- NI -- -- -- -- us/cm 10/06/11 447 78 3020 938 413 NI 460 3100 172 481 2530 931 562 535 147 363 642 us/cm 04/17/12 416 65 2470 94 424 NI 38 534 272 489 2850 767 -- -- -- -- -- us/cm 10/22/12 399 71 2760 95 420 NI 36 2.6 360 498 2990 950 - -- - -- - uS/cm 04/24/13 410 69 2150 97 464.0 NI 34 260 233 505 3110 863 532 755 211 491 821 us/cm 09/10/13 414 57 2800 92 455 167 461 2.74 447 493 3280 975 553 813 241 556 882 us/cm 04/23/14 395 56 2490 9870 479 1800 197 106 224 500 3380 596 544 188 202 529 803 us/cm 10/03/14 425 48 3250 1029 488 1730 509 3190 559 514 3530 995 567 854 375 628 1124 us/cm 04/14/15 268 34 1918 678 345 1153 266 188 246 337 2199 530 366 509 121 389 561 us/cm 10/05/15 304 -- 2617 757 375 1369 241 1245 328 395 2922 387 442 625 150 298 270 us/cm 04/19/16 323 38 2838 1047 477 1747 567 365 542 493 3691 851 563 289 -- -- - uS/cm 09/26/16 340 -- 2618 988 457 1611 815 2522 646 485 3124 768 548 758 329 712 845 us/cm 03/21/17 - -- 3189 987 - 1773 - 1876 610 -- - -- - -- -- -- - us/cm 04/25/17 362 56 2996 1017 480 1587 379 68 100 472 3916 349 527 730 191 213 234 us/cm 10/17/17 367 -- 2929 946 498 1733 781 2987 643 565 3839 612 547 783 262 778 806 (verification event) us/cm 12/21/17 -- -- 3058 -- 482 -- -- 2986 -- -- -- -- -- -- -- -- -- us/cm 04/16/18 321 99 3622 992 540 1915 259 482 196 696 3147 621 544 778 272 900 298 us/cm 10/16/18 317 -- 2776 836 407 1650 448.4 1102 142 526 3462 489.5 144 174.9 208 258.7 324 (verification event) us/cm 02/20/19 -- -- -- -- 459 us/cm 04/09/19 368 34 2619 1001 455 1863 355 135 180 664 4158 455 531 383 539 844 439 GOLDER 1 of 3 August 2019 1668421.105 TABLES Summary of Groundwater Field Parameters White Street Landfill - Phase II, Permit No. 41-03 Greensboro, North Carolina Upgradient Monitoring Wells Compliance Downgraient Monitoring Wells Assessment Sentinel Monitoring Wells Detected Monitoring Reporting Sample Monitoring Well Constituent/Parameter Units Date MWA3 MW-14 II-1 11.2 II-3 114A II-5 11.6 II-7 II-713 II-8 11.12 11.313 11.9 SMW-1 SMW-3 SMW4 Temperature (Field) °C 05/25/99 14.42 14.90 14.55 14.65 14.50 NI 11.30 13.30 12.95 -- 16.02 NI NI NI NI NI NI °C 09/22/99 14.84 15.01 16.65 15.38 15.37 NI 17.78 16.73 15.66 -- 18.35 NI NI NI NI NI NI °C 03/27/00 14.30 14.66 - 14.58 15.01 NI 11.93 12.89 13.70 -- 16.27 NI NI NI NI NI NI °C 09/13/00 15.70 16.40 - 16.07 16.06 NI 18.97 17.15 15.82 -- 16.27 NI NI NI NI NI NI °C 03/13/01 15.04 1618 -....... 15.57 6 15.......2 NI 11.38 13-..-67 14.....24 -.- 16.41 N--I NI NI NI NI NI °C 09/13/01 15.73 15.65 1728 1654 1765 NI 2008 1824 1618 206 18.10 NI NI NI NI NI N °C 03/080 1425 .. 14.74 1373 15.26 551 N 12.31 1270 14.08 14.45 16.06 N N N N N NI 0/i52 98I0 16 05 10.26 10.89 11.45 12.53 NI 14.29 11.87 1062 10.35 1321 NI NI NI NI N I°C N °C 04/13 -- - -- - NI - - -- - NI NI NI NI NI NI 10/15/03 14.67 1478 16. 7 39 I NI 17. 550 165 NI I NI I NI I NI I°C NI N °C 03/24/04 1442 505 13.31 15. 548 1493 N 1123 1358 15. 397 14.92 554 N N N N N NI °C 09/22/04 1630 15.40 16.10 16.60 16.90 NI 1910 1700 16.50 1550 1660 NI NI NI NI NI N °C 05/09/05 924 2278 599 2079 20.32 NI 1587 12.58 19.1 19.36 1737 NI NI NI NI NI NI °C 10/11/05 1280 2070 17.60 1870 2310 NI 17.60 18.70 17.00 15.70 1660 NI NI NI N °C 04/24/06 - -- - -- - NI - -- - -- - NI NI NI NI 10/19/06 - 19.62 180 768 183 NI 194 8.30 1799 17.40 16.7 NI I NI I°C NI N °C 04/1207 14.57 1472 13.47 19.15 17.91 NI 10.04 1555 17.12 1713 14.23 NI NI NI NI °C 09/26/07 23.41 22.80 2215 23.49 2264 NI 1758 29.18 1745 15.95 1801 -- NI NI NI N oc 0429/08 14.55 1616 1122 15.48 1570 N 16.60 . 460 60 13.5 1419 13.9 NI NI NI NI 12/03/08 1 16.62 1 16.51 1682 I NI 1598 8 9.47 N N N NoC 04/17/09 14.53 453 16.62 1267 16.51 1682 NI 1598 11.96 1 1618 13.38 947 11.41 NI -- I NI IoC NI NI °C 10/13/09 1365 1850 1267 346 14.92 1405 NI 18.60 1907 1215 11.70 21.48 12.01 N NI NI N °C 0428/10 14.56 21.23 1388 1478 1865 N 2207 14.44 182 14.19 18.22 15.94 NI 1637 N N NI °C 08/02/10 - -- 2034 2255 - NI - 2517 23.19 - N 20.45 °C 10/11/10 18.37 23.08 1755 12.92 16.2 NI 17.5 18.24 17.16 18.0 NI 14.03 °C 05/11/11 - -- - -- - NI - -- - -- - -- N -- - -- - °°C 10/06/11 8.7 2.02 2087 970 19.93 NI 9.08 9.13 18.71 1842 16..72 18.6 9.11 14.03 18.3 6.8 7.35 °C 04/17/12 1407 .. 15.59 19.33 19.05 2435 .5 N 16.75 1372 2472 21.74 1418 1412 - -- - C 1022/12 I N. 18.34 15..15 100 4... 1097 1 7..68 16.29 -- -- °C 04/2 1374 1493 14.10 . 1588 .8 1693 NI 153 1342 1414 14.58 1510 14.53 1478 13.44 13..09 1428 12.....31 °C 09/1013 / 23.09 19.75 2069 15.40 2183 2308 21.412 23.13 18.09 17.92 2626 21.24 16.44 589 18.95 20.2 1881 °C 04/23/14 1652 17.52 12.21 17.30 18.61 18.67 16.49 17.49 1088 8.38 175 16.50 1873 4.78 14 17.73 1866 10/0314 11.86 1503 1984 .. 1499 220 0 23.49 25.12 19.55 1967 21.04 22.95 21.30 15.07 18.89 1. 629 11°C 1899 °C 04/14/15 13.96 15.23 1506 17.58 17.53 17.84 19.26 16.31 1761 17.93 13.64 12.79 16.82 12.07 1202 13.25 1204 °C 10/05/15 1581 -- 19.91 15.46 16.27 16.12 18.6 16.17 17.48 18.75 18.65 16.96 17.50 14.78 1957 17.46 1773 °C 04/19/16 16.29 17.5 1586 2067 153 1894 19.78 17.26 1.30 20.43 20.86 14.6 13.64 16.46 - -- - °C 09/26/16 18.06 19.30 21.82 16.75 18.73 22.56 17.92 18.11 18.66 22.22 19.82 20.45 17.18 18.0 7.8 7.549 °C 03/21/17 - -- 18.27 18.57 - 15.12 - 18.02 17.22 -- - -- - -- - -- - °C 04/25/17 14.35 15.79 14.21 17.68 17.07 14.78 13.99 17.00 15.32 16.61 16.37 15.69 16.82 15.00 15.07 15.68 14.76 °C 10/17117 14.77 -- 16.00 17.37 17.01 17.53 19.71 16.70 16.33 16.68 17.85 18.85 17.67 15.84 17.32 16.38 16.49 (verification event) °C 12/21117 -- -- 15.22 -- 16.27 -- - 13.83 - -- - -- - -- - -- - °C 04/16/18 14.3 15.4 12.9 16.9 17.1 16.4 15.6 15.1 16.1 16.2 17.7 14.6 15.3 13.1 12.6 14.4 13.3 °C 10/16/18 16.3 -- 17.1 17.0 16.6 15.8 18.1 16.7 16.4 16.5 17.5 19.0 18.4 16.8 19.5 18.3 17.8 (verification event) °C 02/20/19 - -- - -- 14.4 -- - -- - -- - -- - -- - -- 11.1 °C1 04/09/19 15.7 17.10 13.6 16.7 17.3 14.1 14.5 14.6 15.2 16.5 17.9 16.7 17.5 13.5 13.1 13.8 13.7 Turbidity (Field) NTU 05/25/99 - -- - -- - NI - -- - -- - NI NI NI NI NI NI NTU 09/22/99 - -- -- -- - NI - -- - -- - NI NI NI NI NI NI NTU 03/27/00 - -- -- -- - NI - -- - -- - NI NI NI NI NI NI NTU 09/13/00 - -- -- -- -- NI - -- -- -- -- NI NI NI NI NI NI NTU 03/13/01 -- -- -- -- -- NI -- -- -- -- -- NI NI NI NI NI NI NTU 09/13/01 -- -- -- -- -- NI -- -- -- -- -- NI NI NI NI NI NI NTU 03/08/02 -- -- -- -- -- NI -- -- -- -- -- NI NI NI NI NI NI NTU 09/18/02 - -- -- -- - NI - -- - -- - NI NI NI NI NI NI NTU 0415/03 - -- -- -- - NI - -- - -- - NI NI NI NI NI NI NTU 10/15/03 - -- -- -- - NI - -- - -- - NI NI NI NI NI NI NTU 03/24/04 - -- -- -- -- NI - -- -- -- -- NI NI NI NI NI NI NTU 09/22/04 -- -- -- -- -- NI -- -- -- -- -- NI NI NI NI NI NI NTU 05/09/05 1.01 9.33 6.45 14.28 115 NI 7.54 3.98 0.82 0.22 1.27 NI NI NI NI NI NI NTU 10/11/05 10.0 6.00 2.13 4.47 47.1 NI 59.0 8.00 0.22 0.42 2.24 -- NI -- NI NI NI NTU 04/24/06 - -- - -- - NI - -- - -- - -- NI -- NI NI NI NTU 10/19/06 - 4.81 4.44 1.24 115 NI 21.0 7.43 0.77 0.55 1.35 -- NI -- NI NI NI NTU 04/12/07 - -- -- -- - NI - -- - -- - -- NI -- NI NI NI NTU 09/26/07 - -- -- -- - NI - -- - -- - -- NI -- NI NI NI NTU 04/29/08 - -- - -- - NI - -- - -- - -- NI -- NI NI NI NTU 12/03/08 4.42 4.80 5.64 2.99 18.8 NI 32.8 10.26 3.35 3.46 3.75 -- NI -- NI NI NI NTU 04/17/09 -- -- -- -- -- NI -- -- -- -- -- -- NI -- NI NI NI NTU 10/13/09 -- -- - -- - NI - -- - -- - -- NI NI NI NI NTU 04/28/10 6.98 3.23 21.50 6.57 15.32 NI 14.38 10.66 2.28 3.13 5.16 6.48 NI 12.75 NI NI NI NTU 08/02/10 - -- 8.93 5.18 - NI - -- 4.76 3.85 - -- NI 10.05 40.6 9.73 10.73 NTU 10/11/10 3.28 5.01 11.64 4.95 11.99 NI 11.96 13.56 4.55 2.8 9.3 6.12 NI 35.7 45.9 44.7 14.17 NTU 05/11/11 - -- - -- - NI - -- - -- - NI -- - -- - NTU 10/06/11 6.75 5.87 8.08 6.65 12.35 NI 34.8 38.0 8.09 6.86 5.51 7.55 15.33 35.7 20.6 57.0 15.07 NTU 04/17/12 4.28 5.57 6.24 4.24 12.59 NI 10.16 5.90 4.12 3.44 4.45 4.19 - -- - -- - NTU 10/22/12 4.65 7.09 5.75 6.83 18.35 NI 9.37 10.43 4.71 6.58 10.2 5.22 - -- - -- - NTU 04/2413 9.00 7.44 6.01 5.76 18.48 NI 19.0 8.49 7.08 5.97 5.3 6.49 5.42 6.50 14.18 5.95 6.55 NTU 09/10/13 4.16 7.44 6.18 10.94 15.89 9.12 6.69 6.99 4.41 5.09 4.72 32.8 12.75 14.69 9.05 26.3 7.58 NTU 04/23/14 4.72 4.61 4.51 5.57 8.43 4.64 9.18 8.81 6.58 6.06 5.05 30.1 4.68 6.34 7.49 11.97 4.15 NTU 10/03/14 5.76 6.94 7.86 7.04 8.69 5.88 6.99 19.8 4.86 7.54 6.17 12.94 6.07 11.85 9.99 8.74 7.44 NTU 04/14/15 3.34 3.91 5.57 24.30 6.09 3.4 9.28 4.46 4.77 2.81 1.97 5.09 2.43 1.84 4.00 10.55 4.14 NTU 10/05/15 1.62 -- 0.00 0.35 5.20 0.00 80.0 9.00 0.35 0.00 0.00 32.9 0.00 12.1 19.2 9.30 11.1 NTU 04/19/16 2.01 7.52 5.77 1.01 19.8 1.03 16.9 9.81 2.89 5.21 3.35 32.8 4.22 5.46 6.10 12.35 3.52 NTU 09/26/16 21.3 -- 0.33 0.30 6.26 0.47 3.12 16.99 4.31 1.78 1.79 3.74 0.56 2.40 3.10 1.42 0.32 NTU 03/21/17 - -- 1.62 0.72 - 0.39 - 5.95 3.75 NTU 04/25/17 10.3 1.39 1.52 3.32 24.5 0.79 108 60.4 5.76 1.66 2.33 94.6 2 32 8.73 44.7 18.6 24.5 NTU 10/17/17 3.58 -- 6.87 0.57 7.44 0.83 33.4 9.70 1.23 0.71 0.97 8.31 4.98 9.32 2.99 8.03 2.95 (verification event) NTU 12/21/17 -- -- 1.29 -- 9.59 -- -- 28.7 -- -- -- -- -- -- -- -- -- NTU 04/16/18 2.56 9.28 0.61 0.58 2.09 0.26 49.7 8.13 1.96 0.67 9.30 9.85 8.87 4.44 9.12 8.45 7.57 NTU 10/16/18 107 -- 0.28 0.99 8.01 9.8 19.8 6.27 8.19 0.3 2.89 8.38 15.0 9.19 5.89 8.11 2.92 (verification event) NTU 02/20/19 - -- - -- 12.0 -- - -- - -- - -- - -- - -- 7.02 NTU 04/09/19 3.46 2.25 1.30 1.11 21.1 1.12 40.5 16.7 4.66 0.47 3.32 7.75 7.01 9.94 5.03 6.29 1.63 GOLDER 2 of August 2019 1668421.105 TABLES Summary of Groundwater Field Parameters White Street Landfill - Phase II, Permit No. 41-03 Greensboro, North Carolina Upgradient Monitoring Wells Compliance Downgraient Monitoring Wells Assessment Sentinel Monitoring Wells Detected Monitoring Reporting Sample Monitoring Well Constituent/Parameter Units Date MW-13 MW-14 II-1 11.2 II-3 114A II-5 II-6 II-7 II-7B 11-8 11.12 11.313 11.9 SMW-1 SMW-3 SMW-4 Oxidation Reduction mV 05/25/99 - -- -- -- - NI - -- - -- - NI NI NI NI NI NI Potential (Field) mV 09/22/99 - -- -- -- - NI - -- - -- - NI NI NI NI NI NI mV 03/27/00 - -- -- -- - NI - -- - -- - NI NI NI NI NI NI mV 09/13/00 - -- -- -- - NI - -- - -- - NI NI NI NI NI NI mV 03/13/01 - -- -- -- - NI - -- - -- - NI NI NI NI NI NI mV 09/13/01 - -- -- -- - NI - -- - -- - NI NI NI NI NI NI mV 03/08/02 - -- -- -- - NI - -- - -- - NI NI NI NI NI NI mV 09/18/02 - -- - -- -- NI - -- - -- -- NI NI NI NI NI NI mV 04/15/03 - -- - -- - NI - -- - -- - NI NI NI NI NI NI mV 10/15/03 - -- -- -- - NI - -- - -- - NI NI NI NI NI NI mV 03/24/04 - -- -- -- - NI - -- - -- - NI NI NI NI NI NI mV 09/22/04 - -- -- -- - NI - -- - -- - NI NI NI NI NI NI mV 05/09/05 -65 -2 -310 -159 -198 NI -266 -278 -240 -139 -278 NI NI NI NI NI NI mV 10/11/05 197 92 67 136 57 NI 89 -57 189 78 42 -- NI -- NI NI NI mV 04/24/06 - -- - -- - NI - -- - -- - -- NI -- NI NI NI mV 10/19/06 - -40 -159 -174 -95 NI -161 -148 -115 -284 -237 -- NI -- NI NI NI mV 04/12/07 - -- -- -- - NI - -- - -- - -- NI -- NI NI NI mV 09/26/07 - -- -- -- - NI - -- - -- - -- NI -- NI NI NI mV 04/29/08 - -- -- -- - NI - -- - -- - -- NI -- NI NI NI mV 12/03/08 105 171 83 -49 77 NI 105 181 -47 204 -87 -- NI -- NI NI NI mV 04/17/09 - -- - -- - NI - -- - -- - -- NI -- NI NI NI mV 10/13/09 - -- - -- - NI - -- - -- - -- NI -- NI NI NI mV 04/28/10 288 446 245 182 284 NI 244 193 332 159 309 79 NI 367 NI NI NI mV O8/02110 - -- 186 142 - NI - -- 310 94 - -- NI 274 212 213 288 mV 10/11/10 244 345 192 177 247 NI 122 66 399 108 170 53 NI 180 278 127 334 mV 05/11/11 - -- - -- - NI - -- - -- - -- NI -- - -- - mV 10/06/11 166 235 85 35 161 NI 113 -11 299 20 96 -46 98 180 266 181 286 mV 04/17/12 171 240 97 16 154 NI 153 194 258 -28 90 -42 - -- - -- - mV 10/22/12 127 235 95 41 137 NI 88 -45 221 -34 49 -30 - -- - -- - mV 04/24/13 178 264 146 23 130 NI 185 206 202 17 58 -60 114 222 158 86 272 mV 09/10/13 116 237 48 30 120 181 -17 -39 175 -165 73 -52 120 84 113 58 117 mV 04/23/14 118 165 105 58 141 118 105 178 208 33 87 3 103 196 130 21 147 mV 10/03/14 109 204 -54 26 13 -14 -69 -111 182 -3 19 -119 96 17 -123 -18 49 mV 04/14/15 50 86 30 8 54 -10 38 67 67 -38 33 -127 36 78 58 -14 1.2 mV 10/05/15 -38.4 -- -38 -14 -40 -46 6 -31 -29 -56.6 -39 -90 -42 -59 -66 -37 -37 mV 04/19/16 135.0 266.0 21.0 31.7 142.0 89.0 63.0 103.0 214.0 -78.1 117.5 -78.0 126.0 139.0 131 50 111 mV 09/26/16 42.2 -- - 26 69.00 87 42 -72 103 94.1 50 -48 61 19 24 34 42 mV 03/21/17 - -- -22 38 - 8 - -61 159 -- - -- - -- - -- - mV 04/25/17 154.9 143.4 83.3 28.5 67.6 113.2 101.9 120 101.9 130.0 29.2 -41.3 67.9 76.0 99.0 105.7 112.1 mV 10/17/17 154.1 -- -23.1 73.8 79.9 88.8 14.0 -89.1 132.1 120.7 39.5 -41.7 34.1 66.7 19.2 16.7 52.8 (verification event) mV 12/21/17 - -- 9.1 -- 66.0 -- - -48.7 - -- -- -- -- -- - -- -- mV 04/16/18 364.8 -- 412.0 24.7 86.9 44.0 61.1 100.4 372.3 286.1 203.1 0.52 314.4 391.2 342.0 279.0 367.2 mV 10/16/18 158.7 -- 59.7 20.7 135.8 83.4 60.0 -31.7 197.3 105.6 80.8 -99.40 26.4 128.5 187.0 165.8 180.2 (verification event) mV 02/20/19 -- -- -- -- 317.0 -- -- -- -- -- -- -- -- -- -- -- 339.1 mV 04/09/19 41.2 103.7 39.1 152.4 286.5 332.1 307.5 38.2 43.8 73.7 -40.7 -103.6 162.2 345.3 104.7 90.5 -70.9 Dissolved Oxygen (Field) mg/L 05/25/99 - -- - -- - NI - -- - -- - NI NI NI NI NI NI mg/L 09/22/99 - -- -- -- - NI - -- - -- - NI NI NI NI NI NI mg/L 03/27/00 - -- -- -- - NI - -- - -- - NI NI NI NI NI NI mg/L 09/13/00 - -- -- -- - NI - -- - -- - NI NI NI NI NI NI mg/L 03/13/01 - -- -- -- - NI - -- - -- - NI NI NI NI NI NI mg/L 09/13/01 - -- -- -- - NI - -- - -- - NI NI NI NI NI NI mg/L 03/08/02 - -- -- -- - NI - -- - -- - NI NI NI NI NI NI mg/L 09/18/02 - -- -- -- - NI - -- - -- - NI NI NI NI NI NI mg/L 04/15/03 - -- -- -- - NI - -- - -- - NI NI NI NI NI NI mg/L 10/15/03 - -- -- -- - NI - -- - -- - NI NI NI NI NI NI mg/L 03/24/04 - -- -- -- - NI - -- - -- - NI NI NI NI NI NI mg/L 09/22/04 - -- - -- - NI - -- - -- - NI NI NI NI NI NI mg/L 05/09/05 3.61 6.33 0.38 4.33 0.40 NI 0.72 2.15 0.40 0.66 2.83 NI NI NI NI NI NI mg/L 10/11/05 5.69 6.25 1.64 4.42 2.61 NI 3.69 3.29 1.39 2.59 0.49 -- NI -- NI NI NI mg/L 04/24/06 - -- - -- - NI - -- - -- - -- NI -- NI NI NI mg/L 10/19/06 - 5.49 0.58 1.55 1.49 NI 1.22 1.28 0.88 0.50 0.40 -- NI -- NI NI NI mg/L 04/12/07 - -- -- -- - NI - -- - -- - -- NI -- NI NI NI mg/L 09/26/07 - -- -- -- - NI - -- - -- - -- NI -- NI NI NI mg/L 04/29/08 - -- -- -- - NI - -- - -- - -- NI -- NI NI NI mg/L 12/03/08 5.01 5.82 2.11 2.78 2.46 NI 1.66 6.29 2.13 0.71 1.86 -- NI -- NI NI NI mg/L 04/17/09 - -- - -- - NI - -- - -- - -- NI -- NI NI NI mg/L 10/13/09 - -- - -- - NI - -- - -- - -- NI -- NI NI NI mg/L 04/28/10 6.94 4.92 0.51 6.23 1.11 NI 2.81 4.80 5.10 2.59 0.39 1.10 NI 0.81 NI NI NI mg/L O8/02/10 - -- 0.49 2.21 - NI - -- 0.61 1.96 - -- NI 0.15 0.09 0.12 0.76 mg/L 10/11/10 3.49 3.40 0.28 2.52 0.39 NI 1.49 3.32 2.46 1.21 0.55 0.39 NI 0.47 0.58 0.54 1.57 mg/L 05/11/11 - -- - -- - NI - -- - -- - -- NI -- - -- - mg/L 10/06/11 4.49 4.87 0.49 3.29 1.72 NI 3.03 3.83 2.65 1.28 1.38 0.41 0.63 0.47 0.37 1.11 1.29 mg/L 04/17/12 4.75 4.37 0.62 2.34 1.87 NI 3.54 3.76 2.91 0.90 1.31 0.68 -- -- -- -- - mg/L 10/22/12 3.75 2.30 1.43 3.24 0.49 NI 1.13 2.67 0.05 1.89 1.41 0.66 - -- - -- - mg/L 04/24/13 4.36 4.05 1.69 2.96 2.01 NI 1.35 5.44 3.93 5.97 1.31 0.63 1.19 1.72 1.14 0.95 0.93 mg/L 09/10/13 5.95 4.06 2.67 5.90 6.29 6.00 7.20 3.74 1.26 1.71 3.56 1.66 1.19 0.99 0.78 1.09 0.69 mg/L 04/23/14 8.69 8.47 0.94 11.99 4.52 6.67 2.82 9.14 5.74 3.07 2.37 2.84 1.19 3.47 0.61 0.89 4.34 mg/L 10/03/14 4.59 4.68 0.59 3.11 1.41 3.85 3.30 3.02 1.51 2.60 0.70 2.90 0.65 0.32 0.33 0.60 0.41 mg/L 04/14/15 5.52 5.71 0.80 1.78 1.30 1.99 1.92 3.77 2.65 1.71 2.13 0.50 0.41 2.02 1.22 0.96 1.86 mg/L 10/05/15 3.80 -- 0.44 1.77 0.29 0.37 2.91 5.04 1.79 0.50 0.26 0.13 0.19 0.20 0.12 2.07 4.00 mg/L 04/19/16 6.18 8.48 0.54 3.70 2.26 4.04 3.17 4.90 4.19 0.50 0.26 0.18 0.51 0.29 0.31 0.25 0.30 mg/L 09/26/16 4.81 -- 0.38 2.03 1.03 2.30 2.44 2.15 0.84 0.50 0.50 0.17 0.29 0.38 0.42 0.28 0.30 mg/L 03/21/17 - -- 0.61 1.29 - 5.47 - 2.61 0.99 -- - -- - -- - -- - mg/L 04/25/17 3.65 1.39 0.88 2.57 1.32 0.96 1.16 6.28 7.90 3.28 0.69 0.22 1.30 3.92 6.11 4.56 2.70 mg/L 10/17/17 2.85 -- 0.39 1.11 1.04 1.16 0.50 1.54 0.52 1.27 0.19 0.70 0.25 0.19 0.84 0.37 0.61 (verification event) mg/L 12/21/17 - -- 0.35 -- 0.48 -- - 1.35 - -- - -- - -- - -- - mg/L 04/16/18 3.38 -- 0.95 2.27 0.79 0.58 1.36 3.49 3.26 0.79 0.12 0.52 0.24 1.17 6.43 0.43 3.31 mg/L 10/16/18 3.55 -- 0.49 0.57 0.31 0.19 0.39 2.14 2.41 0.30 0.48 2.20 0.61 0.23 0.17 2.12 1.53 (verification event) mg/L 02/20/19 - -- - -- 2.01 -- - -- - -- - -- - -- - -- 3.11 mg/L 04/09/19 3.43 3.42 5.57 1.57 1.32 0.34 1.22 4.69 2.91 1.16 0.18 0.68 0.10 0.56 0.16 0.09 0.52 Notes: S.U. = Standard Units NTU= Nephelometric Turbidity Units uS/cm = microsiemens per centimeter mg/L= milligramer per liter mV= Millivolts -= no data available or dry well GOLDER 3 of August2019 1668421.105 TABLE 6 Summary of Surface Water Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina Detected Constituent Reporting Sample Method Practical SWS Upstream Surface Water Monitoring Points Downstream Surface Water Monitoring Points (SW Standard) Units Date Detection Du Reporting Blanks Limit Lit Limit Limit Limit SW-7 SW-2 SW-3 SW-4 SW-5 Antimony uq/L 03/01/00 -- -- 30 ND ND ND ND ND ND No SW Standard ug/L 09/01/00 -- -- 30 ND ND ND ND ND ND uq/L 03/01/01 -- -- 30 ND ND ND ND ND ND ug/L 09/01/01 -- -- 30 ND ND ND ND ND ND uq/L 03/01/02 -- -- 30 ND ND ND ND ND ND ug/L 09/01/02 -- -- 30 ND ND ND ND ND ND uq/L 04/01/03 -- -- 30 ND ND ND ND ND ND ug/L 10/01/03 -- -- 30 ND ND ND ND ND ND uq/L 03/01/04 -- -- 30 ND ND ND ND ND ND ug/L 09/01/04 -- -- 30 ND ND ND ND ND ND uq/L 05/01/05 -- -- 30 ND ND ND ND ND ND ug/L 10/01/05 -- -- 30 ND ND ND ND ND ND uq/L 04/01/O6 -- -- 30 ND ND ND ND ND ND ug/L 10/01/O6 -- -- 30 ND ND ND ND ND ND uq/L 04/10/07 -- -- -- ND ND ND ND ND ND ug/L 09/25/07 -- -- -- ND ND ND ND ND ND uq/L 05/05/08 0.68 -- 6 -- ND ND ND ND ND ug/L 12/04/08 0.68 -- 6 -- ND ND ND ND ND uq/L 04/13/09 0.68 -- 6 -- ND ND ND ND ND ug/L 10/20/09 0.073 -- 6 0.461 B 0.185 B 0.351 B 0.346 B 03 0337 B uq/L 04/30/10 02 6 ND 0.272 J 0.22 J 0.258 J N-- D L 1 0/1 1/10 0.22 6 0.329 J 0254 0233 J 0221 J ND uq/L 05/12/1 0.22 6 0.4-4 J ND 0.28J 0.241 J 0.261 J ND ugL 10/072/11 1.1 6 ND ND ND 0287 J 0.24 J ND uq/L 04/19/12 0.22 6 0.27 J ND 0.34 J 0.30 J 0.284 J ND ugL 10/26/12 0.22 -- 6 ND ND ND ND ND ND uq/L 04/25/13 0.22 -- 6 ND ND ND ND ND ND ug/L 09/12/13 0.22 -- 6 ND 0.344 J 0.28 J ND ND ND uq/L 04/25/14 0.22 -- 6 0.695 J 1.62 J 0.582 J 0.332 J 0.264 J ND ug/L 10/02/14 0.22 -- 6 0.526 J ND 0.378 J 0.268 J 0.267 J ND uq/L 04/O6/15 0.22 -- 6 0.312 J ND 0.232 J ND 0.754 J ND ug/L 10/07/15 0.22 - 6 0.268 J ND 0.372 J 0.259 J ND ND uq/L 04/20/16 0.22 -- 6 0.22 ND ND 0.424 J 0.261 J ND ug/L 09/26/16 0.22 - 6 ND ND ND ND 0.479 J ND uq/L 04/28/17 0.37 - 6 0.708 J ND 0.485 J ND ND ND uq/L 10/17/17 0.37 -- 6 0.455 J ND 0.490 J ND 0.654 J ND 04/16/18 1.85 - 6 ND ND ND ND ND ND Zuq/L l- 10/16/18 1.85 5 -- ND ND ND ND ND ND uq/L 04/12/19 0,74 2 ND ND ND ND ND ND Arsenic ug/L 03/01/00 -- -- 10 ND ND ND ND ND ND SW Standard uq/L 09/01/00 -- -- 10 ND ND ND ND ND ND Human Health 10 uq/L ug/L 03/01/01 - - 10 ND ND ND ND ND ND uq/L 09/01/01 -- -- 10 ND ND ND ND ND ND ug/L 03/01/02 - - 10 ND ND ND ND ND ND uq/L 09/01/02 - - 10 ND ND ND ND ND ND ug/L 04/01/03 -- -- 10 ND ND ND ND ND ND uq/L 10/01/03 -- -- 10 ND ND ND ND ND ND ug/L 03/01/04 -- - 10 ND ND ND ND ND ND uq/L 09/01/04 -- -- 10 ND ND ND ND ND ND ug/L 05/01/05 -- - 10 ND ND ND ND ND ND uq/L 10/01/05 -- -- 10 ND ND ND ND ND ND ug/L 04/01/06 -- -- 10 ND ND ND ND ND ND uq/L 10/01/06 -- -- 10 ND ND ND ND ND ND ug/L 04/10/07 -- - - ND ND ND ND ND ND uq/L 09/25/07 -- -- - ND ND ND ND ND ND ug/L 05/05/08 2 - 10 -- ND 2.4 J ND 2.2 J ND uq/L 12/04/08 2.8 -- 10 -- ND ND ND ND ND ug/L 04/13/09 2.8 - 10 -- ND ND ND ND ND uq/L 10/20/09 2.8 -- 10 ND ND ND ND ND ND ug/L 04/30/10 2.8 - 10 -- ND ND ND ND ND uq/L 10/1 1/1 0 2.8 -- 10 -- ND ND ND ND ND ug/L 05/12/11 2.8 - 10 3.04 J 3.39 J ND ND ND uq/L 10/07/11 2.8 -- 10 ND ND ND ND ND ND ug/L 04/19/12 2.8 - 10 ND ND 3.12 J ND ND ND uq/L 10/26/12 2.8 -- 10 ND ND ND ND 5.25 J ND ug/L 04/25/13 2.8 - 10 ND ND ND ND ND ND uq/L 09/12/13 5.4 -- 10 ND ND ND ND ND ND ug/L 04/25/14 5.4 -- 10 ND ND ND ND ND ND uq/L 10/02/14 5.4 -- 10 6.11 J ND ND ND ND ND ug/L 04/06/15 6.8 -- 10 ND ND ND ND ND ND uq/L 10/07/15 6.8 -- 10 ND ND ND ND ND ND ug/L 04/20/16 6.8 -- 10 ND ND ND ND ND ND uq/L 09/26/16 6.8 -- 10 ND ND ND ND ND ND ug/L 04/28/17 6.8 -- 10 ND ND ND ND ND ND 10/17/17 6.8 -- 10 ND ND ND ND ND ND Zuq/L l- 04/16/18 6.8 -- 10 ND ND ND 9.17 J ND ND uq/L 10/16/18 7.6 10 - ND ND ND ND ND ND u /L 04/12/19 7.6 10 ND ND ND ND ND ND Barium uq/L 03/01/00 -- -- 500 ND ND ND ND ND ND SW Standard ug/L 09/01/00 -- -- 500 ND ND ND ND ND ND Human Health=200 mq/L uq/L 03/01/01 -- -- 500 ND ND ND ND ND ND ug/L 09/01/01 -- -- 500 ND ND ND ND ND ND uq/L 03/01/02 -- -- 500 ND ND ND ND ND ND ug/L 09/01/02 -- -- 500 ND ND ND ND ND ND uq/L 04/01/03 -- -- 500 ND ND ND ND ND ND ug/L 10/01/03 -- -- 500 ND ND ND ND ND ND uq/L 03/01/04 -- -- 500 ND ND ND ND ND ND ug/L 09/01/04 -- -- 500 ND ND ND ND ND ND uq/L 05/01/05 -- -- 500 ND ND ND ND ND ND ug/L 10/01/05 - -- 500 ND ND ND ND ND ND uq/L 04/01/06 - -- 500 ND ND ND ND ND ND ug/L 10/01/06 - -- 500 ND ND ND ND ND ND uq/L 04/10/07 - -- -- 41.8 J 54.8 J 21.7 J 25.4 J 25.6 J ND ug/L 09/25/07 - -- -- 74.5 J 70.9 J 16.8 J 23 J 24 J ND uq/L 05/05/08 0.2 -- 100 -- 51.2 B 53 B 92.5 B 65.5 B ND ug/L 12/04/08 1 -- 100 -- 35.9 J 21.8 J 27 J 27 J ND uq/L 04/13/09 4.2 -- 100 -- 53.4 J 44.8 J 41.6 J 42 J ND ug/L 10/20/09 1 10 68.3 J 36..3 J 21....8 J 272 J 26..9 J ND uqL 04/30/10 10 -- 48.5 J 309 J 37.1 J 44.2 J ND ug/L 10/11/10 10 47.1 J 18.8 J 29.3 J 30.6 J ND uqL 05/12/11 10 77.3 J 39.3 J 403 J 35.3 J 37 J ND ug/L 10/07/11 10 74.2 J 76.4 J 214 J 427 J 32.2 J ND uqL 04/19/12 10 43.7 J 484 . J 235 . J 33.7 J 337 J ND 10/26/12 10 48.2 Jug/L ND uqL 04/25/13 10 57 J 651 J 285 J 40.8 J 37.8 J ND ug/L 09/12/13 1 -- 100 56.7 J 40.7 J 25.3 J 31.5 J 33.9 J ND uq/L 04/25/14 1 -- 100 100 60.8 J 49.3 J 52.7 J 48.8 J ND ug/L 10/02/14 1 -- 100 112 45.9 J 22.3 J 24.4 J 25.1 J ND uq/L 04/06/15 1 -- 100 59.3 J 44.3 J 42.2 J 35.5 J 47.3 J ND ug/L 10/07/15 1 -- 100 85.7 J 46.2 J 28.3 J 319 41 J ND uq/L 04/20/16 1 -- 100 113 46.3 J 47.5 J 31 J 35.4 J ND ug/L 09/26/16 1 -- 100 44.8 J 52.8 J 17.6 J 27.9 J 33.9 J ND uq/L 04/28/17 1 -- 100 46.5 J 45.4 J 59.9 J 50.2 J 45.0 J ND uq/L 10/17/17 1 -- 100 40.1 J 33.6 J 55.8 J 41.2 J 37.8 J ND uq/L 04/16/18 1 -- 100 42.9 J 45.4 J 42.1 J 43.9 J 44.1 J ND uq/L 10/16/18 1.1 10 -- 56.6 57.4 56.4 61.7 61.3 ND uq/L 04/12/19 1.1 10 60.9 64.6 40.0 56.8 56.6 ND Beryllium ug/L 03/01/00 -- -- 2 ND ND ND ND ND ND SW Standard uq/L 09/01/00 -- -- 2 ND ND ND ND ND ND Acute=65 uq/L ug/L 03/01/01 -- -- 2 ND ND ND ND ND ND Chronic=6.5 uq/L uq/L 09/01/01 -- -- 2 ND ND ND ND ND ND ug/L 03/01/02 -- -- 2 ND ND ND ND ND ND uq/L 09/01/02 -- -- 2 ND ND ND ND ND ND ug/L 04/01/03 -- -- 2 2.4 2.4 2.3 2.3 ND ND uq/L 10/01/03 -- -- 2 ND ND ND ND ND ND ug/L 03/01/04 -- -- 2 ND ND ND ND ND ND uq/L 09/01/04 -- -- 2 ND ND ND ND ND ND ug/L 05/01/05 -- -- 2 ND ND ND ND ND ND uq/L 10/01/05 -- -- 2 ND ND ND ND ND ND ug/L 04/01/06 -- -- 2 ND ND ND ND ND ND uq/L 10/01/06 -- -- 2 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND uq/L 09/25/07 -- -- -- ND ND ND ND ND ND ug/L 05/05/08 0.7 -- 1 -- ND ND ND ND ND uq/L 12/04/08 0.1 -- 1 -- ND ND ND ND ND ug/L 04/13/09 0.08 -- 1 -- ND ND ND ND ND uq/L 10/20/09 0.1 -- 1 0.113 J ND ND ND ND 0.42 J ug/L 04/30/10 0.1 -- 1 -- ND ND ND ND ND uq/L 10/11/10 0.1 -- 1 -- ND ND ND ND ND ug/L 05/12/11 0.1 -- 1 ND ND ND ND ND ND uq/L 10/07/11 0.1 -- 1 ND 0.149 J ND ND ND ND ug/L 04/19/12 0.1 -- 1 ND ND ND ND ND ND uq/L 10/26/12 0.1 -- 1 ND ND ND ND ND ND ug/L 04/25/13 0.1 -- 1 ND ND ND ND ND ND uq/L 09/12/13 0.1 -- 1 ND ND ND ND ND ND ug/L 04/25/14 0.1 -- 1 ND ND ND ND ND ND uq/L 10/02/14 0.1 -- 1 ND ND ND ND ND ND ug/L 04/06/15 0.1 -- 1 ND ND ND ND ND ND uq/L 10/07/15 0.1 -- 1 ND ND ND ND ND ND ug/L 04/20/16 0.1 -- 1 ND ND ND ND ND ND uq/L 09/26/16 0.1 -- 1 ND ND ND ND ND ND ug/L 04/28/17 0.13 -- 1 ND ND ND ND ND ND uq/L 10/17/17 0.13 -- 1 ND ND ND ND ND ND ug/L 04/16/18 0.13 -- 1 ND ND ND ND ND ND ug/L 10/16/18 0.16 1 - ND ND ND ND ND ND u /L 04/12/19 0.16 1 ND ND ND ND ND ND 4 GOLDER 1of6 August2019 1668421.105 TABLE 6 Summary of Surface Water Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina Detected Constituent Reporting Sample Method Practical SWS Upstream Surface Water Monitoring Points Downstream Surface Water Monitoring Points (SW Standard) Units Data Detection Guantitalion Reporting Blanks Limit Limit Limit SWA SW-2 SW-3 SW-4 SW-5 Cadmium uq/L 03/01/00 -- -- 1 ND ND ND ND ND ND SW Standard ug/L 09/01/00 -- - 1 ND ND ND ND ND ND Acute = 0.82 uq/L uq/L 03/01/01 -- -- 1 ND ND ND ND ND ND Chronic=0.15 uq/L ug/L 09/01/01 -- -- 1 1.1 ND ND ND ND ND uq/L 03/01/02 -- -- 1 ND ND ND ND ND ND ug/L 09/01/02 -- -- 1 ND 1.2 ND ND ND ND uq/L 04/01/03 -- -- 1 4.1 3.8 4.0 3.9 ND ND ug/L 10/01/03 -- -- 1 ND ND ND ND ND ND uq/L 03/01/04 -- -- 1 1.0 ND 1.0 ND ND ND ug/L 09/01/04 -- -- 1 ND ND ND ND ND ND uq/L 05/01/05 -- -- 1 ND ND ND ND ND ND ug/L 10/01/05 -- -- 1 ND ND ND ND ND ND uq/L 04/01/O6 -- -- 1 ND ND ND ND ND ND ug/L 10/01/06 -- -- 1 ND ND ND ND ND ND uq/L 04/10/07 -- -- -- ND ND ND ND ND ND ug/L 09/25/07 -- -- -- ND ND ND ND ND ND uq/L 05/05/08 0.5 -- 1 -- ND ND ND ND ND ug/L 12/04/08 0.36 -- 1 -- ND ND ND ND ND uq/L 04/13/09 0.09 -- 1 -- 0.14 J 0.17 J 0.26 J 0.21 J ND ug/L 10/20/09 0.36 -- 1 0.477 J ND ND ND ND ND uq/L 04/30/10 0.36 -- 1 -- ND ND ND ND ND ug/L 1 0/1 1/10 0.36 -- 1 -- ND ND ND ND ND uq/L 05/12/11 0.36 -- 1 0.471 J ND ND ND ND ND ug/L 10/072/11 0.36 -- 1 ND ND ND ND ND ND uq/L 04/19/12 0.36 -- 1 ND ND ND ND ND ND ug/L 10/26/12 0.36 -- 1 ND ND ND ND ND ND uq/L 04/25/13 0.36 -- 1 ND ND ND ND ND ND ug/L 09/12/13 0.36 -- 1 ND ND ND ND ND ND uq/L 04/25/14 0.36 -- 1 ND ND ND ND ND ND ug/L 10/02/14 0.36 -- 1 0.661 J ND ND ND ND ND uq/L 04/06/15 0.36 -- 1 ND ND ND ND ND ND ug/L 10/07/15 0.36 -- 1 0.784 J ND ND 5.66 ND ND uq/L 04/20/16 0.36 -- 1 ND ND ND ND ND ND ug/L 09/26/16 0.36 -- 1 ND ND ND ND ND ND uq/L 04/28/17 0.36 -- 1 ND ND ND ND ND ND uq/L 10/17/17 0.36 -- 1 ND ND ND ND ND ND uq/L 04/16/18 0.36 -- 1 ND ND ND ND ND ND uq/L 10/16/18 0.36 1 -- ND ND ND ND ND ND uq/L 04/12/19 0.36 1 ND ND ND ND ND ND Chromium ug/L 03/01/00 -- -- 10 ND ND ND ND ND ND SW Standard uq/L 09/01/00 -- -- 10 ND ND 25 14 20 ND Acute = 16 uq/L ug/L 03/01/01 - -- 10 ND ND ND ND ND ND Chronic 11 uq/L uq/L 09/01/01 -- -- 10 ND ND ND ND ND ND ug/L 03/01/02 -- -- 10 ND ND ND ND ND ND uq/L 09/01/02 -- -- 10 ND ND ND ND ND ND ug/L 04/01/03 -- -- 10 ND ND ND ND ND ND uq/L 10/01/03 -- -- 10 ND ND 10 ND ND ND ug/L 03/01/04 -- -- 10 ND ND ND ND ND ND uq/L 09/01/04 -- -- 10 ND ND ND ND ND ND ug/L 05/01/05 -- -- 10 ND ND ND ND ND ND uq/L 10/01/05 -- -- 10 ND ND ND ND ND ND ug/L 04/01/06 -- -- 10 ND ND ND ND ND ND uq/L 10/01/06 -- -- 10 ND ND ND ND ND ND ug/L 04/10/07 -- -- - ND ND ND ND ND ND uq/L 09/25/07 -- -- - ND ND ND ND ND ND ug/L 05/05/08 2 -- 10 -- ND ND 15 ND ND uq/L 12/04/08 1 -- 10 -- ND 2.3 J ND 1.4 J ND ug/L 04/13/09 0.7 -- 10 -- 1.4 J 1.6 J 1.1 J 1.1 J ND uq/L 10/20/09 1 -- 10 8.16 J ND ND ND ND ND ug/L 04/30/10 1 -- 10 -- ND 1.14 J ND 1.95 J ND uq/L 10/11/10 1 -- 10 -- 2.52 J 1.00 1.00 1.00 ND ug/L 05/12/11 1 -- 10 4.37 J ND 1.09 J ND ND ND uq/L 10/07/11 1 -- 10 6.97 J 6.25 J 1.21 J 3.00 J ND ND ug/L 04/19/12 1 -- 10 1.11 J ND ND ND ND ND uq/L 10/26/12 1 -- 10 ND ND ND ND ND ND ug/L 04/25/13 1.4 -- 10 1.44 J 2.12 J ND ND 2.57 J ND uq/L 09/12/13 1.4 -- 10 ND ND ND ND ND ND ug/L 04/25/14 1.4 -- 10 11.7 ND 4.26 J 1.7 J ND ND uq/L 10/02/14 1.4 -- 10 20.6 B 2.13 B 13.4 B 2.50 B 2.70 B -- ug/L 04/06/15 1.4 -- 10 3.66 J ND 3.36 J ND 3.51 J ND uq/L 10/07/15 1.4 -- 10 7.93 J ND ND 66.1 ND ND ug/L 04/20/16 1.4 -- 10 14.6 ND 6.73 J ND ND ND uq/L 09/26/16 1.4 -- 10 ND ND ND ND ND ND ug/L 04/28/17 1.4 -- 10 ND ND 5.88 J 1.43 J ND ND uq/L 10/17/17 1.4 -- 10 ND ND 3.94 J ND ND ND uq/L 04/16/18 1.4 -- 10 1.74 J ND 1.80 J ND 1.92 J ND uq/L 10/16/18 1.4 10 - ND ND ND ND ND ND U. /L 04/12/19 1.4 10 1.93 J 1.77 J ND ND 2.09 J ND Cobalt uq/L 03/01/00 -- -- 10 ND ND ND ND ND ND No SW Standard ug/L 09/01/00 -- -- 10 ND ND ND ND ND ND uq/L 03/01/01 -- -- 10 ND ND ND ND ND ND ug/L 09/01/01 -- -- 10 ND ND ND ND ND ND uq/L 03/01/02 -- -- 10 ND ND ND ND ND ND ug/L 09/01/02 -- -- 10 ND 17 ND ND ND ND uq/L 04/01/03 -- -- 10 14 14 15 14 ND ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND ND uq/L 03/01/04 -- -- 10 ND ND ND ND ND ND ug/L 09/01/04 -- -- 10 ND ND ND ND ND ND uq/L 05/01/05 -- -- 10 ND ND ND ND ND ND ug/L 10/01/05 - -- 10 ND ND ND ND ND ND uq/L 04/01/O6 - -- 10 ND ND ND ND ND ND ug/L 10/01/06 - -- 10 ND ND ND ND ND ND uq/L 04/10/07 - -- - ND ND ND ND ND ND ug/L 09/25/07 - -- - 3.5 J ND ND ND ND ND uq/L 05/05/08 2 -- 10 -- ND ND 7.1 J 3.8 J ND ug/L 12/04/08 1.1 -- 10 -- ND ND ND 2.9 J ND uq/L 04/13/09 0.6 -- 10 -- 1.8 J 0.7 J 0.8 J 0.6 J ND ug/L 10/20/09 1.1 -- 10 3.43 J ND ND ND ND ND uq/L 04/30/10 1.1 -- 10 -- ND ND ND 1.98 J ND ug/L 10/11/10 10 -- ND ND ND ND ND uq/L 05/12/11 1.1 -- 10 3.19 J ND ND ND ND ND ug/L 10/072/11 1.1 -- 10 4.06 J 6.5 J 1.19 J 2.28 J ND ND uq/L 04/19/12 1.1 -- 10 ND ND ND ND ND ND ug/L 10/26/12 1.1 -- 10 ND ND ND ND ND ND uq/L 04/25/13 1.1 -- 10 ND 2.03 J ND ND ND ND ug/L 09/12/13 1.1 -- 10 ND ND 1.46 J 1.15 J ND ND uq/L 04/25/14 1.1 -- 10 4.31 J ND 1.91 J ND ND ND ug/L 10/02/14 1.1 -- 10 8.95 J ND 4.56 J 2.46 J 2.45 J ND uq/L 04/O6/15 1.1 -- 10 1.73 J ND 2.44 J 1.56 J 2.18 J ND ug/L 10/07/15 1.1 -- 10 4.34 J ND 2.43 J 46.5 1.92 J ND uq/L 04/20/i6 1.1 -- 10 7.38 J ND 4.32 J 1.66 J 2.1 J ND ug/L 09/26/16 1.1 -- 10 ND 1.30 J ND ND ND ND uq/L 04/28/17 1.1 -- 10 ND ND 2.31 J ND ND ND uq/L 10/17/17 1.1 -- 10 ND ND 2.94 J ND ND ND uq/L 04/16/18 1.1 -- 10 1.65 J 1.49 J ND 1.30 J 1.32 J ND uq/L 10/16/18 1.4 10 -- ND ND ND ND ND ND uq/L 04/12/19 1.4 10 ND 1.40 J ND ND ND ND Copper ug/L 03/01/00 -- -- 200 ND ND ND ND ND ND SW Standards uq/L 09/01/00 -- -- 200 ND ND ND ND ND ND Acute =3.6 uq/L ug/L 03/01/01 -- -- 200 ND ND ND ND ND ND Chronic =2.7 uq/L uq/L 09/01/01 -- -- 200 ND ND ND ND ND ND ug/L 03/01/02 -- -- 200 ND ND ND ND ND ND uq/L 09/01/02 -- -- 200 ND ND ND ND ND ND ug/L 04/01/03 -- -- 200 ND ND ND ND ND ND uq/L 10/01/03 -- -- 200 ND ND ND ND ND ND ug/L 03/01/04 -- -- 200 ND ND ND ND ND ND uq/L 09/01/04 -- -- 200 ND ND ND ND ND ND ug/L 05/01/05 -- -- 200 ND ND ND ND ND ND uq/L 10/01/05 -- -- 200 ND ND ND ND ND ND ug/L 04/01/06 -- -- 200 ND ND ND ND ND ND uq/L 10/01/06 -- -- 200 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- 2.2 J 1.5 J 6.2 J 4.5 J 4.3 J ND uq/L 09/25/07 -- -- -- 11.2 0.6 10.3 8.4 J 10.1 ND ug/L 05/05/08 0.6 -- 10 -- 1.3 J 25 J 13.3 3.7 J ND uq/L 12/04/08 1.6 -- 10 -- 20.5 4.6 J 4.3 J 6.4 J ND ug/L 04/13/09 0.81 -- 10 -- 1.93 J 2.56 J 1.87 J 1.78 J ND uq/L 10/20/09 1.6 -- 10 10.7 ND 7.1 J 5.15 J 1.26 J ND ug/L 04/30/10 1.6 -- 10 -- ND 5.9 J 3.3 J 6.33 J ND uq/L 10/11/10 1.6 -- 10 -- 10.2 8.12 J 5.59 J 3.91 J ND ug/L 05/12/11 1.6 -- 10 12.8 ND 3.34 J 2.89 J 3.03 J ND uq/L 10/07/11 1.6 -- 10 8.31 J 5.88 J 4.91 J 6.56 J 3.28 J ND ug/L 04/19/12 1.6 -- 10 2.72 J ND 5.01 J 4.36 J 4.11 J ND uq/L 10/26/12 1.6 -- 10 2.04 J ND 5.47 J 2.22 J 2.71 J ND ug/L 04/25/13 1.6 -- 10 3.43 J 5.01 J 4.46 J 4.33 J 6.16 J ND uq/L 09/12/13 1.6 -- 10 1.94 J ND 1.67 J ND ND ND ug/L 04/25/14 1.6 -- 10 16.7 B 3.46 B 10.5 B 5.92 B 6.29 B -- uq/L 10/02/14 1.6 -- 10 30.9 1.82 J 6.82 J 5.42 J 5.30 J ND ug/L 04/06/15 1.6 -- 10 4.30 J 3.71 J 11.1 5.23 J 8.24 J ND uq/L 10/07/15 1.6 -- 10 11.3 1.6 2.65 J 57.1 2.17 J ND ug/L 04/20/16 1.6 -- 10 21.2 ND 10.8 2.56 J 4.07 J ND uq/L 09/26/16 1.6 -- 10 4.52 J 2.57 J 6.61 J 6.03 J 8.07 J ND ug/L 04/28/17 1.6 -- 10 5.19 J 3.02 J 13.4 4.55 J 4.51 J ND uq/L 10/17/17 1.6 -- 10 3.95 J 1.77 J 9.07 J 2.58 J 2.89 J ND uq/L 04/16/18 1.6 -- 10 4.40 J 4.19 J 4.11 J 5.33 J 3.98 J ND uq/L to/ i6/18 1.6 10 - 3.11 J 3.84 J 2.72 J 2.42 J 3.55 J ND u /L 04/12/19 1.6 10 3.44 J 5.44 J 5.11 J 3.66 J 4.18 J ND 4 GOLDER 2of6 August2019 1668421.105 TABLE 6 Summary of Surface Water Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina Detected Constituent Reporting Sample Method Practical SWS Upstream Surface Water Monitoring Points Downstream Surface Water Monitoring Points (SW Standard) Units Data Detection Guantitalion Reporting Blanks Limit Limit Limit SWA SW-2 SW-3 SW-4 SW-5 Lead uq/L 03/01/00 -- -- 10 ND ND 15 ND ND ND SW Standards ug/L 09/01/00 -- - 10 ND ND 10 ND ND ND Acute = 14 uq/L uq/L 03/01/01 -- -- 10 ND ND ND ND ND ND Chronic=0.54 uq/L ug/L 09/01/01 -- -- 10 25 ND ND ND ND ND uq/L 03/01/02 -- -- 10 ND ND ND ND ND ND ug/L 09/01/02 -- -- 10 ND 86 ND ND ND ND uq/L 04/01/03 -- -- 10 ND ND ND ND ND ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND ND uq/L 03/01/04 -- -- 10 ND ND ND ND ND ND ug/L 09/01/04 -- -- 10 ND ND ND ND ND ND up/L 05/01/05 -- -- 10 ND ND ND ND ND ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND ND up/L 04/01/06 -- -- 10 ND ND ND ND ND ND ug/L 10/01/06 -- -- 10 ND ND ND ND ND ND up/L 04/10/07 -- -- -- ND ND ND ND ND ND ug/L 09/25/07 -- -- -- 11.2 ND ND ND ND ND up/L 05/05/08 2 -- 10 -- ND ND 14.8 ND ND ug/L 12/04/08 1.9 -- 10 -- ND ND ND ND ND up/L 04/13/09 1.6 -- 10 -- 2.3 J 2.5 J 1.6 1.6 ND 10/20/09 1 .9 -- 10 8.94 J ND ND 2.44 J 3.3J NDug/L upL 04/30/10 . 10 ND ND ND 2.04 J ND 10/11/10 19 10 5.45 J 1.90 1.90 10 9ug/L ND upL 05/12/11 . 10 15-. ND 2.00 J ND ND ND 10/07/11 19 10 1ug/L 0.0 16.4 ND 3.33 J ND ND upL 04/19/12 1.9 -- 10 ND ND 2.38 J ND ND ND ug/L 09/26/16 3.1 -- 10 ND ND ND ND ND ND up/L 10/26/12 1.9 -- 10 ND ND ND ND ND ND ug/L 04/25/13 1.9 -- 10 ND 4.74 J ND ND ND ND up/L 09/12/13 2.1 -- 10 ND ND ND ND ND ND ug/L 04/25/14 2.1 -- 10 11.2 3.23 J 3.36 J 2.23 J 2.82 J ND up/L 10/02/14 2.1 -- 10 ND ND ND ND ND ND ug/L 04/06/15 3.1 -- 10 ND ND ND ND ND ND up/L 10/07/15 3.1 -- 10 7.02 J ND ND 93.2 ND ND ug/L 04/20/16 3.1 -- 10 14.6 ND 6.10 J ND ND ND up/L 04/28/17 3.1 -- 10 ND ND 4.86 J ND ND ND uq/L 10/17/17 3.1 -- 10 ND ND 3.18 J ND ND ND uq/L 04/16/18 3.1 -- 10 ND ND ND ND ND ND uq/L 10/16/18 3.1 10 -- ND ND ND ND ND ND uq/L 04/12/19 3.1 10 3.91 J ND ND ND ND ND Nickel ug/L 03/01/00 - -- 50 ND ND ND ND ND ND SW Standards up/L 09/01/00 - -- 50 ND ND 82 85 81 ND Acute = 140 ug/L ug/L 03/01/01 -- -- 50 ND ND ND ND ND ND Chronic= 16 uq/L up/L 09/01/01 -- -- 50 ND ND ND ND ND ND ug/L 03/01/02 -- -- 50 ND ND ND ND ND ND up/L 09/01/02 -- -- 50 ND ND ND ND ND ND ug/L 04/01/03 -- -- 50 ND ND ND ND ND ND up/L 10/01/03 -- -- 50 ND ND ND ND ND ND ug/L 03/01/04 -- -- 50 ND ND ND ND ND ND up/L 09/01/04 -- -- 50 ND ND ND ND ND ND ug/L 05/01/05 -- -- 50 ND ND ND ND ND ND up/L 10/01/05 -- -- 50 ND ND ND ND ND ND ug/L 04/01/06 -- -- 50 ND ND ND ND ND ND up/L 10/01/06 -- -- 50 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND 2.7 J ND 2.5 J ND up/L 09/25/07 -- -- -- ND ND 7.6 J ND ND ND ug/L 05/05/08 2.0 5 3.5 J 3.J 5 J 67 J ND up/L 12/04/08 1.a 5 ND 4.3 J 3.5 8 J 3.2 J ND ug/L 04/13/09 06 5 2.3 J 1.5 J 1.6 J 1.5 J ND upL 10/20/09 .8 5 2.94 J ND 2.53 J 189 J ND ND ug/L 04/30/10 5 ND ND ND 214 J ND upL 10/11/10 5 -- 1.80 2.22 J 180 1.8 ND 05/1211 1. .8 5 2.34 ND ND 2.57 J 2.6J NDug/L upL 10/07/11 5 3.64 J 4.23 J 64J 431 J 3.4J ND1.8 04/19/12 5 ND ND 2.5J 2.00 2.23 J NDug/L upL 10/26/12 5 ND 1.9 J 5.32 51 54J ND1.8 04/25/13 5 2.38 J 330 J 62J 6.96 6.85 J NDug/L upL 09/12/13 5 ND ND 2.0J ND ND ND1.8 04/25/14 5 4.30 J 2.07 J 7.4J 5.5 J 5.5J NDug/L upL 10/02/14 1.8 -- 50 7.25 J ND 23.7 J 9.96 J 10.6 J ND 04/06/15 1.8 5 2.02 J ND 30J 2..33 J 246 NDug/L upL 10/07/15 1.a 5 3.16 J ND 6.5J 22.0 J 3.14 J ND ug/L 04/20/16 22 5 5.60 J ND 5.02 J 85 J 2.88 J ND upL 09/26/16 22 5 ND ND 3.54 J 3.3 J 644 J ND ug/L 04/28/17 2.2 5 ND ND 6.02 J 283 J 2.62 J ND uqL 10/17/17 2.2 -- 50 ND ND ND ND ND ND uq/L 04/16/18 2.2 -- 50 ND ND ND ND ND ND uq/L 10/16/18 2.2 10 -- ND ND ND ND ND ND U. /L 04/12/19 2.2 10 ND ND ND ND ND ND Selenium up/L 03/01/00 -- -- 20 ND ND ND ND ND ND SW Standards ug/L 09/01/00 -- -- 20 ND ND ND ND ND ND Acute = 5 ug/L up/L 03/01/01 -- -- 20 ND ND ND ND ND ND Chronic=5 uq/L ug/L 09/01/01 -- -- 20 ND ND ND ND ND ND uq/L 03/01/02 -- -- 20 ND ND ND ND ND ND ug/L 09/01/02 -- -- 20 ND ND ND ND ND ND uq/L 04/01/03 -- -- 20 ND ND ND ND ND ND ug/L 10/01/03 -- -- 20 ND ND ND ND ND ND uq/L 03/01/04 -- -- 20 ND ND ND ND ND ND ug/L 09/01/04 -- -- 20 ND ND ND ND ND ND uq/L 05/01/05 -- -- 20 ND ND ND ND ND ND ug/L 10/01/05 -- -- 20 ND ND ND ND ND ND uq/L 04/01/O6 -- -- 20 ND ND ND ND ND ND ug/L 10/01/O6 -- -- 20 ND ND ND ND ND ND uq/L 04/10/07 -- -- -- ND ND ND ND 2.9 J ND ug/L 09/25/07 -- -- -- ND ND ND ND ND ND uq/L 05/05/08 2 -- 10 - ND ND ND ND ND ug/L 12/04/08 2.7 -- 10 -- ND ND ND ND ND uq/L 04/13/09 3.4 -- 10 -- ND ND ND ND ND ug/L 10/20/09 2.7 -- 10 ND ND ND ND ND ND uq/L 04/30/10 083 1 1.72 J 0.9 J 0.974 J 1.23 J ND ugL 11/10 0/1 0.83 0 -- 0.83 0.83 0.83 0.875 J ND uq/L 05/12/11 0.83 -- 10 ND ND ND 1.16 J 0.926 J ND ug/L 10/07/11 4.15 -- 10 ND ND ND 1.03 J 1.16 J ND uq/L 04/19/12 0.83 -- 10 ND ND ND ND ND ND ug/L 10/26/12 0.83 -- 10 ND ND ND ND ND ND ug/L 04/25/13 0.83 -- 10 ND ND ND ND ND ND ug/L 09/12/13 0.91 -- 10 ND ND ND ND ND ND uq/L 04/25/14 0.91 -- 10 ND ND ND ND ND ND ug/L 10/02/14 0.91 -- 10 ND ND ND ND ND ND uq/L 04/O6/15 0.91 -- 10 ND ND ND ND ND ND ug/L 10/07/15 0.91 -- 10 ND ND ND ND ND ND uq/L 04/20/16 0.91 -- 10 ND ND ND ND ND ND ug/L 09/26/16 0.91 -- 10 ND ND ND ND ND ND uq/L 04/28/17 6.2 -- 10 ND ND ND ND ND ND up/L 10/17/17 6.2 -- 10 ND ND ND ND ND ND 04/16/18 6.2 -- 10 ND ND ND ND ND ND Zuq/L l- to/,6/18 6.2 10 -- ND ND ND ND ND ND u /L 04/12/19 6.2 10 ND ND ND ND ND ND Silver ug/L 03/01/00 -- -- 10 ND ND ND ND ND ND SW Standards up/L 09/01/00 -- -- 10 ND ND ND ND ND ND Acute=30 uq/L ug/L 03/01/01 -- -- 10 ND ND ND ND ND ND Chronic=0.6 uq/L up/L 09/01/01 -- -- 10 ND ND ND ND ND ND ug/L 03/01/02 -- -- 10 ND ND ND ND ND ND up/L 09/01/02 -- -- 10 ND ND ND ND ND ND ug/L 04/01/03 -- -- 10 ND ND ND ND ND ND up/L 10/01/03 -- -- 10 ND ND ND ND ND ND ug/L 03/01/04 -- -- 10 ND ND ND ND ND ND up/L 09/01/04 -- -- 10 ND ND ND ND ND ND ug/L 05/01/05 -- -- 10 ND ND ND ND ND ND up/L 10/01/05 -- -- 10 ND ND ND ND ND ND ug/L 04/01/06 -- -- 10 ND ND ND ND ND ND up/L 10/01/06 -- -- 10 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND up/L 09/25/07 -- -- -- ND ND ND ND ND ND ug/L 05/05/08 2 -- 10 -- ND 2.2 J ND 2.4 J ND up/L 12/04/08 1.9 -- 10 -- ND ND ND 2.8 J ND ug/L 04/13/09 1.0 -- 10 -- ND ND ND ND ND up/L 10/20/09 1.9 -- 10 ND ND ND ND ND ND ug/L 04/30/10 1.9 -- 10 -- 2.22 J ND ND ND ND up/L 10/11/10 1.9 -- 10 -- ND ND ND ND ND ug/L 05/12/11 1.9 -- 10 ND ND ND ND ND ND up/L 10/07/11 1.9 -- 10 ND ND ND ND ND ND ug/L 04/19/12 1.9 -- 10 ND ND ND ND ND ND up/L 10/26/12 1.9 -- 10 ND ND ND ND ND ND ug/L 04/25/13 1.9 -- 10 2.06 J ND 1.95 J 2.29 J 2.31 J ND up/L 09/12/13 1.9 -- 10 ND ND ND ND ND ND ug/L 04/25/14 1.9 -- 10 ND ND ND ND ND ND up/L 10/02/14 1.9 -- 10 ND ND ND ND ND ND ug/L 04/06/15 1.9 -- 10 ND ND ND ND ND ND up/L 10/07/15 1.9 -- 10 ND ND 2.74 J ND 2.32 J ND ug/L 04/20/16 1.9 -- 10 ND ND ND ND ND ND up/L 09/26/16 1.9 -- 10 ND ND ND ND ND ND ug/L 04/28/17 1.9 -- 10 ND ND ND ND ND ND uq/L 10/17/17 1.9 -- 10 ND ND ND ND ND ND uq/L 04/16/18 1.9 -- 10 ND ND ND ND ND ND uq/L 10/16/18 1.9 10 -- ND ND ND ND ND ND u /L 04/12/19 1.9 10 ND ND ND ND ND ND 4 GOLDER 3of6 August2019 1668421.105 TABLE 6 Summary of Surface Water Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina Detected Constituent Reporting Sample Method Practical SWS Upstream Surface Water Monitoring Points Downstream Surface Water Monitoring Points (SW Standard) Units Data Detection Guantitalion Reporting Blanks Limit Limit Limit SW-1 SW-2 SW-3 SW-4 SW-5 Thallium uq/L 03/01/00 -- -- 10 ND ND ND ND ND ND No SW Standard ug/L 09/01/00 -- - 10 ND ND ND ND ND ND uq/L 03/01/01 -- -- 10 ND ND ND ND ND ND ug/L 09/01/01 - - 10 ND ND ND ND 12 ND uq/L 03/01/02 -- -- 10 ND ND ND ND ND ND ug/L 09/01/02 -- -- 10 ND ND ND ND ND ND uq/L 04/01/03 - - 10 ND ND ND ND ND ND ug/L 10/01/03 -- - 10 ND ND ND ND ND ND uq/L 03/01/04 -- -- 10 ND ND ND ND ND ND ug/L 09/01/04 - - 1O ND ND ND ND ND ND uq/L 05/01/05 - -- 10 ND ND ND ND ND ND ug/L 10/01/05 - - 10 ND ND ND ND ND ND uq/L 04/01/O6 - - 10 ND ND ND ND ND ND ug/L 10/01/O6 - - 10 ND ND ND ND ND ND uq/L 04/10/07 - -- -- ND ND ND ND ND ND ug/L 09/25/07 - - -- 0.053 J 0.05 J 0.045 J 0.055 J 0.054 J ND uq/L 05/05/08 0.036 -- 5.5 -- ND ND ND ND ND ug/L 12/04/08 0.036 - 5.5 -- ND ND ND ND ND uq/L 04/13/09 0.036 -- 5.5 -- ND ND ND ND ND ug/L 10/20/09 0.11 - 5.5 0.11 0.11 0.11 0.11 0.11 ND uq/L 04/30/10 0.11 -- 5.5 -- ND ND ND ND ND ug/L 10/11/10 0.11 - 5.5 -- ND ND ND ND ND uq/L 05/12/11 0.11 -- 5.5 ND ND ND ND ND ND ug/L 10/07/11 0.55 - 5.5 ND ND ND ND ND ND uq/L 04/19/12 0.11 -- 5.5 ND ND ND ND ND ND ug/L 10/26/12 0.11 - 5.5 ND ND ND ND ND ND uq/L 04/25/13 0.11 -- 5.5 ND ND ND ND ND ND ug/L 09/12/13 0.11 - 5.5 ND ND ND ND ND ND uq/L 04/25/14 0.11 -- 5.5 ND ND ND ND ND ND ug/L 10/02/14 0.11 - 5.5 ND ND ND ND ND ND uq/L 04/06/15 0.11 -- 5.5 ND ND ND ND ND ND ug/L 10/07/15 0.11 - 5.5 ND ND ND ND ND ND uq/L 04/20/16 0.11 -- 5.5 ND ND ND ND ND ND ug/L 09/26/16 0.11 - 5.5 0.190 J 0.124 J 0.205 J 0.187 J 0.316 J ND uq/L 04/28/17 0.11 - 5.5 0.389 J 0.267 J 0.261 J 0.287 J 0.205 J ND uq/L 10/17/17 0.11 -- 5.5 0.819 J 0.655 J 0.698 J 0.840 J 0.425 J ND uq/L 04/16/18 0.11 - 5.5 ND ND ND ND ND ND uq/L 10/16/18 0.55 5 -- ND ND ND ND ND ND uq/L 04/12/19 0,22 2 ND ND ND ND ND ND Vanadium ug/L 03/01/00 -- -- 40 ND ND ND ND ND ND No SW Standard uq/L 09/01/00 -- -- 40 ND ND ND ND ND ND ug/L 03/01/01 - - 40 ND ND ND ND ND ND uq/L 09/01/01 -- -- 40 ND ND ND ND ND ND ug/L 03/01/02 - - 40 ND ND ND ND ND ND uq/L 09/01/02 - - 40 ND 44 ND ND ND ND ug/L 04/01/03 -- -- 40 ND ND ND ND ND ND uq/L 10/01/03 -- -- 40 ND ND ND ND ND ND ug/L 03/01/04 -- - 40 ND ND ND ND ND ND uq/L 09/01/04 -- -- 40 ND ND ND ND ND ND ug/L 05/01/05 - - 40 ND ND ND ND ND ND uq/L 10/01/05 - -- 40 ND ND ND ND ND ND ug/L 04/01/06 - -- 40 ND ND ND ND ND ND uq/L 10/01/06 - -- 40 ND ND ND ND ND ND ug/L 04/10/07 - - -- ND ND ND ND ND ND uq/L 09/25/07 - -- -- 7.1 J ND ND 1.5 J 1.2 J ND ug/L 05/05/08 1 - 25 -- ND ND 9.3 J 2.4 J ND uq/L 12/04/08 1.4 -- 25 -- ND ND ND 2.5 J ND ug/L 04/13/09 0.7 - 25 -- 4.2 J 2.1 J 2.5 J 2.6 J ND uq/L 10/20/09 1.4 -- 25 10.7 J 2.19 J 1.81 J 2.79 J 1.86 J ND ug/L 04/30/10 1.4 - 25 -- ND ND ND 3.45 J ND uq/L 10/11/10 1.4 -- 25 -- 8.27 J 3.03 J 2.55 J 2.02 J ND ug/L 05/12/11 1.4 - 25 8.52 J 1.90 J 2.35 J 2.27 J 2.42 J ND uq/L 10/07/11 1.4 -- 25 11.9 J 21.0 J 2.27 J 6.55 J 1.66 J ND ug/L 04/19/12 1.4 - 25 2.33 J ND 1.48 J 1.60 J 1.44 J ND uq/L 10/26/12 1.4 -- 25 ND ND ND ND ND ND ug/L 04/25/13 1.4 - 25 2.31 J 5.99 J ND ND ND ND uq/L 09/12/13 1.4 -- 25 2.11 J ND 1.70 J 1.53 J ND ND ug/L 04/25/14 1.4 -- 25 17.9 J ND 4.7 J 2.25 J 1.60 J ND uq/L 10/02/14 1.4 -- 25 42.2 ND 3.14 J 2.66 J 2.26 J ND ug/L 04/06/15 1.4 -- 25 2.34 J ND 3.33 J ND 4.62 J ND uq/L 10/07/15 1.4 2 18.2 J 2.91 J 3.69 J 61..8 3..05 J ND ug/L 04/20/16 14 2 26.9 ND 12.0 J 213 J 304 J ND uqL 09/26/16 1.4 2 1.95 J ND ND 1.6 J 45J ND ug/L 04/28/17 14 2 2.61 J 1.66 J 83J 235 J 2.3J ND uqL 10/17/17 1.4 2 2.42 J ND 7.92 J 34 J 2.88 J ND uq/L 04/16/18 14 -- 2 2.33 J 214 J 24J 2.9 J 36J ND uq/L 10/16/18 1.4 10 1.88 J 2.2 J 1.51 J 1.61 J 1.70 J ND L 04/12/19 1.4 10 1.54 J 4.16 J 2.39 J 1.78 J ND ND Zinc L 03/000 50 ND ND 31 ND Sandards ug/L /0SW 00 -- -- 50 ND ND 130 50 60 ND Acute =36 uq/L uq/L 03/01/01 -- -- 50 ND ND 68 ND 56 ND Chronic=36 uq/L ug/L 09/01/01 -- -- 50 120 ND 60 ND 50 ND uq/L 03/01/02 -- -- 50 ND ND 70 50 60 ND ug/L 09/01/02 -- -- 50 ND 180 80 ND ND ND uq/L 04/01/03 -- -- 50 ND ND ND ND 50 ND ug/L 10/01/03 -- -- 50 ND ND 120 50 50 ND uq/L 03/01/04 -- -- 50 ND ND 52 ND ND ND ug/L 09/01/04 -- -- 50 58 ND 56 ND 59 ND uq/L 05/01/05 -- -- 50 ND ND ND ND ND ND ug/L 10/01/05 -- -- 50 ND ND ND ND ND ND uq/L 04/01/O6 -- -- 50 ND ND 51.6 ND ND ND ug/L 10/01/O6 -- -- 50 ND ND 60.9 ND ND ND uq/L 04/10/07 -- -- -- 7.6 J 23.5 48.4 38.2 39.5 ND ug/L 09/25/07 -- -- -- 84.9 11.4 61.4 36.4 45.7 ND qL 05/05/08 1.0 10 -- 5.8 J J 154 20....4 ND L 12/04/08 38 0 22.4 47.9 35.3 34.6 ND uq/L 0413/09 3.4 10 -- 24.9 21..4 258 272 ND u 10/20/09 38 10 70.0 762gL J 45.2 309 332 ND uq/L 04/30/10 3.8 10 6.64 J 481 34.0 542 ND ugL 1 0/1 1/10 3.8 -- 10 -- 32.0 30.1 22.8 22.9 ND uqq//LL 05/121 /1 38 10 76.20 10.1 . 277 36...9 ND u 10/07 3. 8 10 102 62.1 45.0 32.1 NDgL 04/19/12 3.8 10 5.9 J ND 320 .ug/L 21 22.9 ND uqL 10/26/12 38 10 2 5.81 J 253 20.3 22.0 ND ug/L 04/25/13 3.8 10 5. 25.8 42.6 31. 33 ND uqL 09/12/13 38 10 9.7 J ND 29. 14.6 17.1 ND ug/L 04/2514 3.8 10 66.3 792 J 6 37.2 33.7 ND u 10/02/14 38 10 144 3.94 J .. 36 349 34.0 ND ug/L 04/06/15 3.8 10 16.4 5.3 J 57.3 30.0 516 ND uqL 10/07/15 38 10 117 7.88 J 25. 1020 24.5 ND ug/L 04/20/16 4.4 10 ND 95.5 31.5 447 ND uqL 09/26/16 44 10 5.08 J 521 J 20 16.4 277 ND ug/L 04/28/17 4.4 10 11 6.98 J 64.8 21.1 20.1 ND uqL 10/17/17 44 10 8.83 J ND 32. 5.72 J ND ND uq/L 04/16/18 4.4 10 114 106 103 6.3 115.7 ND uq/L 10/16/18 4.4 10 12.9 12.2 11.8 75 84 ND 04/12/19 4.4 10 11.6 16.2 13.9 12.1 2.09 J ND IAcetone L 03/01/00 -- - 100 ND ND ND ND ND -- SWStandard =2000 uq/L ug/L 09/01/00 -- -- 100 ND ND ND ND ND ND uq/L 03/01/01 -- -- 100 ND ND ND ND ND ND ug/L 09/01/01 -- -- too ND ND ND ND ND ND uq/L 03/01/02 -- -- 100 ND ND ND ND ND ND ug/L 09/01/02 -- -- too ND ND ND ND ND ND uq/L 04/01/03 -- -- 100 ND ND ND ND ND ND ug/L 10/01/03 -- -- 100 ND ND ND ND ND ND uq/L 03/01/04 -- -- 100 ND ND ND ND ND ND ug/L 09/01/04 -- -- 100 ND ND ND ND ND ND uq/L 05/01/05 -- -- 100 ND ND ND ND ND ND ug/L 10/01/05 -- -- 100 ND ND ND ND ND ND uq/L 04/01/O6 -- -- 100 ND ND ND ND ND ND ug/L 10/01/O6 -- -- 100 ND ND ND ND ND ND uq/L 04/10/07 -- -- -- ND ND ND ND ND ND ug/L 09/25/07 -- -- - ND 5.3 J 68 J 1.7 J 6.3 J ND uq/L 05/05/08 0.62 -- 100 -- ND ND ND ND ND ug/L 12/04/08 1.5 -- 100 -- 7.9 J 9.1 J 7.6 J 7.8 J ND uq/L 04/13/09 1.5 -- 100 -- ND ND ND ND ND ug/L 10/20/09 1.5 -- 100 ND ND 6.0 J ND 6.2 J ND uq/L 04/30/10 1.5 -- 100 -- 3.0 J 3.5 J 4.6 J 4.1 J ND ug/L 1 0/1 1/10 1.5 - 100 -- ND ND ND ND ND uq/L 05/12/11 1.2 -- 100 9.7 J 7.5 J ND ND ND ND ug/L 10/072/11 1.2 - 100 ND ND ND ND ND ND uq/L 04/19/12 1.2 -- 100 ND ND ND ND ND ND ug/L 10/26/12 1.2 - 100 ND 4.4 J ND ND ND ND uq/L 04/25/13 0.96 -- 100 1.0 J 1.0 J ND ND 1.6 J ND ug/L 09/12/13 1.2 - 100 ND ND ND ND ND ND uq/L 04/25/14 1.2 -- 100 ND ND ND ND ND ND ug/L 10/02/14 1.2 - 100 ND ND ND ND ND ND uq/L 04/O6/15 1.2 -- 100 ND ND ND ND ND ND ug/L 10/07/15 1.2 - 100 ND ND ND ND ND ND uq/L 04/20/16 1.2 -- 100 ND ND ND ND ND ND ug/L 09/26/16 10 - 100 ND 11 J ND ND 11 J ND 04/28/17 10 - 100 23 B 19 B 19 B 36 B 16 B 33 J zuq/L t- 10/17/17 10 -- 100 ND ND ND ND ND ND uq/L 04/16/18 10 - 100 ND ND ND ND ND ND uq/L 10/16/18 10 20 -- ND ND ND ND ND ND uq/L 04/12/19 1 10 1 20 ND ND ND ND 15.6 ND 4 GOLDER 4of6 August2019 1668421.105 TABLE 6 Summary of Surface Water Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina Detected Constituent Reporting Sample Method Practical SWS Upstream Surface Water Monitoring Points Downstream Surface Water Monitoring Points (SW Standard) Units Date Detection Guantitalion Reporting Blanks Limit Limit Limit SWA SW-2 SW-3 SW-4 SW-5 Bromodichloromethane uq/L 03/01/00 -- -- 5 ND ND ND ND ND ND No SW Standard ug/L 03/01/01 -- -- 5 ND ND ND ND ND ND ug/L 03/01/02 -- -- 5 ND ND ND ND ND ND ug/L 09/01/02 -- -- 5 ND ND ND ND ND ND ug/L 04/01/03 -- -- 5 ND ND ND ND ND ND ug/L 10/01/03 -- -- 5 ND ND ND ND ND ND ug/L 03/01/04 -- -- 5 ND ND ND ND ND ND ug/L 09/01/04 -- -- 5 ND ND ND ND ND ND ug/L 05/01/05 -- -- 5 ND ND ND ND ND ND ug/L 10/01/05 -- -- 5 ND ND ND ND ND ND ug/L 04/01/0 -- -- 5 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND ug/L 09/25/07 -- -- -- ND ND 6.5 0.66 B 0.48 B 0.19 J ug/L 05/05/08 0.20 -- 1 -- ND ND ND ND ND ug/L 12/04/08 0.37 -- 1 -- ND ND ND ND ND ug/L 04/13/09 0.37 -- 1 -- ND ND ND ND ND ug/L 10/20/09 0.37 -- 1 ND ND 1 ND ND ND ug/L 04/30/10 0.1 -- 1 -- ND 0.83 J ND ND ND ug/L 10/1 1/1 0 0.37 -- 1 -- ND 8.3 1.4 3.8 ND ug/L 05/12/11 0.75 -- 1 ND ND ND ND ND ND ug/L 10/07/11 0.75 -- 1 ND ND ND ND ND ND ug/L 04/19/12 0.17 -- 1 ND ND 0.67 J ND ND ND ug/L 10/26/12 0.17 -- 1 ND ND 0.53 J ND ND ND ug/L 04/25/13 0.17 -- 1 ND ND ND ND ND ND ug/L 09/12/13 0.17 -- 1 ND ND 0.65 J 0.49 J ND ND ug/L 04/25/14 0.17 -- 1 0.75 J ND 0.97 J ND ND ND ug/L 10/02/14 0.17 -- 1 ND ND ND ND ND ND ug/L 04/06/15 0.17 -- 1 ND ND ND ND ND ND ug/L 10/07/15 0.17 -- 1 ND ND 0.96 J ND ND ND ug/L 04/20/16 0.17 -- 1 ND ND ND ND ND ND ug/L 09/26/16 0.17 -- 1 ND ND ND ND ND ND ug/L 04/28/17 0.17 -- 1 ND ND ND ND ND ND uq/L 10/17/17 0.17 -- 1 ND ND ND ND ND ND uq/L 04/16/18 0.17 -- 1 ND ND ND ND ND ND uq/L 10/16/18 0.17 1 -- ND ND ND ND ND ND 04/12/19 0.17 1 ND ND ND ND ND ND Chloroform IL L 03/01/00 -- -- 5 ND ND ND ND ND ND No SW Standard ug/L 09/01/00 -- -- 5 ND ND ND ND ND ND uq/L 03/01/01 -- -- 5 ND ND ND ND ND ND ug/L 09/01/01 -- -- 5 ND ND ND ND ND ND uq/L 03/01/02 -- -- 5 ND ND ND ND ND ND ug/L 09/01/02 -- -- 5 ND ND ND ND ND ND uq/L 04/01/03 -- -- 5 ND ND ND ND ND ND ug/L 10/01/03 -- -- 5 ND ND ND ND ND ND uq/L 03/01/04 -- -- 5 ND ND ND ND ND ND ug/L 09/01/04 -- -- 5 ND ND ND ND ND ND uq/L 05/01/05 -- -- 5 ND ND ND ND ND ND ug/L 10/01/05 -- -- 5 ND ND ND ND ND ND uq/L 04/01/06 -- -- 5 ND ND ND ND ND ND ug/L 10/01/06 -- -- 5 ND ND ND ND ND ND uq/L 04/10/07 -- -- -- 0.16 0.16 2.5 J 0.69 J 0.6 J ND ug/L 09/25/07 -- -- -- 0.37 J ND 8.4 1.2 J 1.2 J ND uq/L 05/05/08 0.2 -- 5 -- ND ND ND ND ND ug/L 12/04/08 0.2 -- 5 -- 0.2 0.58 J 0.2 0.2 ND uq/L 04/13/09 0.2 -- 5 -- ND ND ND ND ND ug/L 10/20/09 0.2 -- 5 ND ND 2.4 J 2.1 J 1.3 J ND uq/L 04/30/10 0.083 -- 5 -- ND 1.8 J ND ND ND ug/L 10/11/10 0.2 -- 5 -- 0.2 7.4 2.0 J 2.0 J ND uq/L 05/12/11 0.7 -- 5 ND ND ND J ND ND ND ug/L 10/07/11 0.7 -- 5 ND ND 2.4 J 0.92 J 1.1 J ND uq/L 04/19/12 0.18 -- 5 ND ND 1.0 J 0.45 J ND ND ug/L 10/26/12 0.18 -- 5 ND ND 1.2 J ND ND ND uq/L 04/25/13 025 5 N1D ND 0.51 J ND ND ND ug/L 09/12/13 0.18 5 ND ND 1J 07 J 07J ND uqL 04/25/14 0 5 .2 J ND 18 J 0.46 J 0.58 J ND ug/L 10/02/14 0.18 5 J ND 0.9J 1.0 J ND ND uqL 04/06/15 0.18 -- 5 ND ND 0.49 J ND ND ND ug/L 10/07/15 0.18 -- 5 ND ND 2.4 J 0.92 J 1.0 J ND uq/L 04/20/16 0.18 -- 5 ND ND ND ND ND ND ug/L 09/26/16 0.18 -- 5 ND ND 1.6 J ND ND ND uq/L 04/28/17 0.18 -- 5 ND ND ND ND ND ND ug/L 10/17/17 0.1a -- 5 ND ND ND ND ND ND uq/L 04/16/18 0.18 -- 5 ND ND ND ND ND ND uq/L 10/16/18 0.18 1 -- ND ND ND ND ND ND uq/L 04/12/19 0.18 1 ND ND ND ND ND ND Di bromochloromethane ug/L 03/01/00 -- -- 5 ND ND ND ND ND ND No SW Standard ug/L 03/01/01 -- -- 5 ND ND ND ND ND ND ug/L 03/01/02 - -- 5 ND ND ND ND ND ND ug/L 09/01/02 - -- 5 ND ND ND ND ND ND ug/L 04/01/03 -- -- 5 ND ND ND ND ND ND 10/01/03 -- -- 5 ND ND ND ND ND ND zL L 03/01/04 - -- 5 ND ND ND ND ND ND ug/L 09/01/04 -- -- 5 ND ND ND ND ND ND ug/L 05/01/05 -- -- 5 ND ND ND ND ND ND ug/L 10/01/05 -- -- 5 ND ND ND ND ND ND ug/L 04/01/06 -- -- 5 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND 0.54 J ND ND ND ug/L 09/25/07 -- -- -- ND ND 2.8 J ND ND ND ug/L 05/05/08 0.28 -- 3 - ND ND ND ND ND ug/L 12/04/08 0.32 -- 3 - ND ND ND ND ND ug/L 04/13/09 0.32 -- 3 -- ND ND ND ND ND ug/L 10/20/09 0.32 -- 3 ND ND ND ND ND ND L 04/30/10 0.067 -- 3 -- ND ND ND ND ND zug/l- 1 0/1 1/10 0.32 -- 3 -- 0.32 6.6 1.2 J 4.6 ND ug/L 05/12/11 0.63 -- 3 ND ND ND ND ND ND ug/L 10/072/11 0.63 -- 3 ND ND ND ND ND ND ug/L 04/19/12 0.17 -- 3 ND ND ND ND ND ND ug/L 10/26/12 0.17 -- 3 ND ND ND ND ND ND ug/L 04/25/13 0.49 -- 3 ND ND ND ND ND ND ug/L 09/12/13 0.17 -- 3 ND ND ND ND ND ND ug/L 04/25/14 0.17 -- 3 ND ND ND ND ND ND ug/L 10/02/14 0.17 -- 3 ND ND ND ND ND ND ug/L 04/06/15 0.17 -- 3 ND ND ND ND ND ND ug/L 10/07/15 0.17 -- 3 ND ND ND ND ND ND 04/20/16 0.17 -- 3 ND ND ND ND ND ND %ug/L 1- 09/26/16 0.17 -- 3 ND ND ND ND ND ND ug/L 04/2B/17 0.17 -- 3 ND ND ND ND ND ND uq/L 10/17/17 0.17 -- 3 ND ND ND ND ND ND uq/L 04/16/18 0.17 -- 3 ND ND ND ND ND ND uq/L 10/16/18 0.17 1 -- ND ND ND ND ND ND uq/L 04/12/19 0.17 1 ND ND ND ND ND ND 1,4-Dichloroben-ne ug/L 03/01/00 - -- 5 ND ND ND ND ND ND SW Standard=100 uq/L ug/L 03/01/01 -- -- 5 ND ND ND ND ND ND ug/L 03/01/02 -- -- 5 ND ND ND ND ND ND ug/L 09/01/02 - -- 5 ND ND ND ND ND ND ug/L 04/01/03 -- -- 5 ND ND ND ND ND ND 10/01/03 -- -- 5 ND ND ND ND ND ND zug/L l- 03/01/04 -- -- 5 ND ND ND ND ND ND ug/L 09/01/04 -- -- 5 ND ND ND ND ND ND ug/L 05/01/05 -- -- 5 ND ND ND ND ND ND ug/L 10/01/05 -- -- 5 ND ND ND ND ND ND ug/L 04/01/06 -- -- 5 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND ug/L 09/25/07 -- -- -- ND ND ND ND ND ND ug/L 05/05/08 0.2 -- 1 -- ND ND ND ND ND ug/L 12/04/08 0.38 -- 1 -- ND ND ND ND ND ug/L 04/13/09 0.38 -- 1 -- ND ND ND ND ND ug/L 10/20/09 0.38 -- 1 ND ND ND ND ND ND ug/L 04/30/10 0.1 -- 1 -- ND ND ND ND ND ug/L 1 0/1 1/10 0.38 -- 1 -- ND ND ND ND ND ug/L 05/12/11 0.79 -- 1 ND ND ND ND ND ND ug/L 10/072/11 0.79 -- 1 ND ND ND ND ND ND ug/L 04/19/12 0.19 -- 1 ND ND ND ND ND ND ug/L 10/26/12 0.19 -- 1 ND ND ND ND ND ND ug/L 04/25/13 0.194 -- 1 ND ND 0.46 J ND 0.19 J ND ug/L 09/12/13 0.19 -- 1 ND ND ND ND ND ND ug/L 04/25/14 0.19 -- 1 ND ND ND ND ND ND ug/L 10/02/14 0.19 -- 1 ND ND ND ND ND ND ug/L 04/06/15 0.19 -- 1 ND ND ND ND ND ND ug/L 10/07/15 0.19 -- 1 ND ND ND ND ND ND ug/L 04/20/16 0.19 -- 1 ND ND ND ND ND ND ug/L 09/26/16 0.19 -- 1 ND ND ND ND ND ND ug/L 04/28/17 0.19 -- 1 ND ND ND ND ND ND uq/L 10/17/17 0.19 -- 1 ND ND ND ND ND ND uq/L 04/16/18 0.19 -- 1 ND ND ND ND ND ND uq/L 10/16/18 0.19 1 -- ND ND ND ND ND ND uq/L 04/12/19 0.19 1 ND ND ND ND ND ND 4 GOLDER 5of6 August2019 1668421.105 TABLE 6 Summary of Surface Water Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina Detected Constituent Reporting Sample Method Practical SWS Upstream Surface Water Monitoring Points Downstream Surface Water Monitoring Points (SW Standard) Units Data Detection Quantitation Reporting Blanks Limit Limit Limit SWA SW-2 SW-3 SW-4 SW-5 Chloromethane ug/L 03/01/00 -- -- 10 ND ND ND ND ND ND No SW Standard ug/L 09/01/00 -- - 10 ND ND ND ND ND ND uq/L 03/01/01 -- -- 10 ND ND ND ND ND ND ug/L 09/01/01 -- -- 10 ND ND ND ND ND ND uq/L 03/01/02 -- -- 10 ND ND ND ND ND ND ug/L 09/01/02 -- -- 10 ND ND ND ND ND ND uq/L 04/01/03 -- -- 10 ND ND ND ND ND ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND ND uq/L 03/01/04 -- -- 10 ND ND ND ND ND ND ug/L 09/01/04 -- -- 10 ND ND ND ND ND ND uq/L 05/01/05 -- -- 10 ND ND ND ND ND ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND ND uq/L 04/01/O6 -- -- 10 ND ND ND ND ND ND ug/L 10/01/O6 -- -- 10 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND ug/L 09/25/07 -- -- -- ND ND ND ND ND ND ug/L 05/05/08 0.23 -- 1 -- ND ND ND ND ND ug/L 12/04/08 0.34 -- 1 -- ND ND ND ND ND uq/L 04/13/09 0.34 -- 1 -- ND ND ND ND ND ug/L 10/20/09 0.34 -- 1 ND ND ND ND ND ND uq/L 04/30/10 0.05 -- 1 -- ND ND ND ND ND ug/L 10/11/10 0.34 -- 1 -- 0.82 B 0.34 0.34 B 0.62 B 0.43 J uq/L 05/12/11 0.55 -- 1 ND ND ND ND ND ND ug/L 10/07/11 0.55 -- 1 ND ND ND ND ND ND uq/L 04/19/12 0.13 -- 1 ND ND ND ND ND ND ug/L 10/26/12 0.13 -- 1 ND ND ND ND ND ND uq/L 04/25/13 0.44 -- 1 ND ND ND ND ND ND ug/L 09/12/13 0.13 -- 1 ND ND ND ND ND ND uq/L 04/25/14 0.13 -- 1 ND ND ND ND ND ND ug/L 10/02/14 0.13 -- 1 ND ND ND ND ND ND uq/L 04/06/15 0.13 -- 1 ND ND ND ND ND ND ug/L 10/07/15 0.13 -- 1 ND ND ND ND ND ND uq/L 04/20/16 0.13 -- 1 ND ND ND ND ND ND ug/L 09/26/16 0.13 -- 1 ND ND ND ND ND ND uq/L 04/28/17 0.13 -- 1 0.42 J ND ND 0.78 J 0.41 J ND uq/L 10/17/17 0.13 -- 1 ND ND ND ND ND ND uq/L 04/16/18 0.13 -- 1 ND ND ND ND ND ND ug/L 10/16/18 0.13 1 -- ND ND ND ND ND ND uq/L 04/12/19 0.13 1 ND ND ND ND ND ND Mefhviene Chloride ug/L 03/01/00 -- -- 10 ND ND ND ND ND ND No SW Standard uq/L 09/01/00 -- -- 10 ND ND ND ND ND ND ug/L 03/01/01 - -- 10 ND ND ND ND ND ND uq/L 09/01/01 -- -- 1O ND ND ND ND ND ND ug/L 03/01/02 -- -- 10 ND ND ND ND ND ND uq/L 09/01/02 -- -- 10 ND ND ND ND ND ND ug/L 04/01/03 -- -- 10 ND ND ND ND ND ND uq/L 10/01/03 -- -- 1O ND ND ND ND ND ND ug/L 03/01/04 -- -- 10 ND ND ND ND ND ND uq/L 09/01/04 -- -- 10 ND ND ND ND ND ND ug/L 05/01/05 -- -- 10 ND ND ND ND ND ND uq/L 10/01/05 -- -- 10 ND ND ND ND ND ND ug/L 04/01/06 -- -- 10 ND ND ND ND ND ND uq/L 10/01/06 -- -- 10 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND uq/L 09/25/07 -- -- -- ND ND ND ND ND ND ug/L 05/05/08 0.24 -- 1 -- ND ND ND ND ND uq/L 12/04/08 0.53 -- 1 -- ND ND ND ND ND ug/L 04/13/09 0.53 -- 1 -- ND ND ND ND ND uq/L 10/20/09 0.53 -- 1 ND ND ND ND ND ND ug/L 04/30/10 0.07 -- 1 -- ND ND ND ND ND uq/L 10/1 1/1 0 0.53 -- 1 -- ND ND ND ND ND ug/L 05/12/11 0.14 -- 1 ND ND ND ND ND ND uq/L 10/07/11 0.14 -- 1 ND ND ND ND ND ND ug/L 04/19/12 0.23 -- 1 ND ND ND ND ND ND uq/L 10/26/12 0.23 -- 1 ND ND ND ND ND ND ug/L 04/25/13 0.5 -- 1 ND ND ND ND ND ND uq/L 09/12/13 0.23 -- 1 ND ND ND ND ND ND ug/L 04/25/14 0.23 -- 1 ND ND ND ND ND ND uq/L 10/02/14 0.23 -- 1 ND ND ND ND 0.77 J ND ug/L 04/06/15 0.23 -- 1 ND ND ND ND ND ND uq/L 10/07/15 0.23 -- 1 ND ND ND ND ND ND ug/L 04/20/16 0.23 -- 1 ND ND ND ND ND ND uq/L 09/26/16 0.23 -- 1 ND ND ND ND ND ND ug/L 04/28/17 0.23 -- 1 ND ND ND ND ND ND uq/L 10/17/17 0.23 -- 1 ND ND ND ND ND ND uq/L 04/16/18 0.23 -- 1 ND ND ND ND ND ND uq/L 10/16/18 0.23 1 -- ND ND ND ND ND ND u /L 04/12/19 0.23 1 ND ND ND ND ND 0.73 J Toluene uq/L 03/01/00 -- -- 5 ND ND ND ND ND ND SW Standard = 11 uq/L ug/L 03/01/01 -- -- 5 ND ND ND ND ND ND uq/L 03/01/02 -- -- 5 ND ND ND ND ND ND ug/L 09/01/02 -- -- 5 ND ND ND ND ND ND uq/L 04/01/03 -- -- 5 ND ND ND ND ND ND ug/L 10/01/03 -- -- 5 ND ND ND ND ND ND uq/L 03/01/04 -- -- 5 ND ND ND ND ND ND ug/L 09/01/04 -- -- 5 ND ND ND ND ND ND uq/L 05/01/05 -- -- 5 ND ND ND ND ND ND ug/L 10/01/05 -- -- 5 ND ND ND ND ND ND uq/L 04/01/06 -- -- 5 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND 0.31 J ND ND ND ND uq/L 09/25/07 -- -- -- ND 4.2 ND ND ND ND ug/L 05/05/08 0.2 -- 1 -- ND ND ND ND ND uq/L 12/04/08 0.27 -- 1 -- ND ND ND ND ND ug/L 04/13/09 0.27 -- 1 -- ND ND ND ND ND uq/L 10/20/09 0.27 -- 1 ND ND 0.85 J ND ND ND ug/L 04/30/10 0,053 -- 1 -- ND 0.43 J ND ND ND uq/L 10/11/10 0.27 -- 1 -- ND ND ND ND ND ug/L 05/12/11 0.85 -- 1 ND ND ND ND ND ND uq/L 04/19/12 0.14 -- 1 ND ND ND ND ND ND ug/L 10/26/12 0.14 -- 1 ND ND ND ND ND ND uq/L 04/25/13 0.23 -- 1 ND ND ND ND ND ND ug/L 09/12/13 0.14 -- 1 ND ND ND ND ND ND uq/L 04/25/14 0.14 -- 1 ND ND ND ND ND ND ug/L 10/02/14 0.14 -- 1 ND ND ND ND ND ND uq/L 04/06/15 0.14 -- 1 ND ND ND ND ND ND ug/L 10/07/15 0.14 -- 1 ND ND ND ND ND ND uq/L 04/20/16 0.14 -- 1 ND ND ND ND ND ND ug/L 09/26/16 0.14 -- 1 ND ND ND ND ND ND uq/L 04/28/17 0.14 -- 1 ND ND ND ND ND ND uq/L 10/17/17 0.14 -- 1 ND ND ND ND ND ND uq/L 04/16/18 0.14 -- 1 ND ND ND ND ND ND uq/L 10/16/18 0.14 1 -- ND ND ND ND ND ND uq/L 04/12/19 0.14 1 ND ND ND ND ND ND Trichloroethene ug/L 03/01/00 -- -- 5 ND ND ND ND ND ND SW Standard uq/L 09/01/00 -- -- 5 ND ND ND ND ND ND Human Heafth=30 uq/L ug/L 03/01/01 -- -- 5 ND ND ND ND ND ND uq/L 09/01/01 -- -- 5 ND ND ND ND ND ND ug/L 03/01/02 -- -- 5 ND ND ND ND ND ND uq/L 09/01/02 -- -- 5 ND ND ND ND ND ND ug/L 04/01/03 -- -- 5 ND ND ND ND ND ND uq/L 10/01/03 -- -- 5 ND ND ND ND ND ND ug/L 03/01/04 -- -- 5 ND ND ND ND ND ND uq/L 09/01/04 -- -- 5 ND ND ND ND ND ND ug/L 05/01/05 -- -- 5 ND ND ND ND ND ND uq/L 10/01/05 -- -- 5 ND ND ND ND ND ND ug/L 04/01/06 -- -- 5 ND ND ND ND ND ND uq/L 10/01/06 -- -- 5 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND uq/L 09/25/07 -- -- -- ND ND ND ND ND ND ug/L 05/05/08 0.25 -- 1 -- ND ND ND ND ND uq/L 12/04/08 0.38 -- 1 -- ND ND ND ND ND ug/L 04/13/09 0.38 -- 1 -- ND ND ND ND ND uq/L 10/20/09 0.38 -- 1 ND ND ND ND ND ND ug/L 04/30/10 0.13 -- 1 -- ND ND ND ND ND uq/L 10/1 1/1 0 0.38 -- 1 -- ND ND ND ND ND ug/L 05/12/11 0.72 -- 1 ND ND ND ND ND ND uq/L 10/07/11 0.72 -- 1 ND ND ND ND ND ND ug/L 04/19/12 0.15 -- 1 ND ND 0.69 J ND ND ND uq/L 10/26/12 0.15 -- 1 ND ND ND ND ND ND ug/L 04/25/13 0.23 -- 1 ND ND ND ND ND ND uq/L 09/12/13 0.15 -- 1 ND ND ND ND ND ND ug/L 04/25/14 0.15 -- 1 ND ND ND ND ND ND uq/L 10/02/14 0.15 -- 1 ND ND ND ND ND ND ug/L 04/06/15 0.15 -- 1 ND ND ND ND ND ND uq/L 10/07/15 0.15 -- 1 ND ND ND ND ND ND ug/L 04/20/16 0.15 -- 1 ND ND ND ND ND ND uq/L 09/26/16 0.15 -- 1 ND ND ND ND ND ND uq/L 04/28/17 0.15 -- 1 ND ND ND ND ND ND uq/L 10/17/17 0.15 -- 1 ND ND ND ND ND ND uq/L 04/16/18 0.15 -- 1 ND ND ND ND ND ND uq/L 10/16/18 0.15 1 -- ND ND ND ND ND ND u /L 04/12/19 0.15 1 ND ND N ND ND NNDD 1,4-D'oane (SW Standard=80 uq/L) u 140/16/18 . ND ND ND 2.1 1.5 J u 0/1_ 19 12 2 ND 1.6 J ND ND ND ND Notes: mq/L= millprams per liter uft micrograms Der liter EPA MCL = United States Environmental Protection Agency Maximum Contaminant Limit J = Pnor to the November 2018 event, J flags are estimated values below the SWS Reportinq limit. Beginninq with the November 2018 event, J flags are estimated values between MDL and PQL. B = blank -qualified data ND = not detected above the laboratory detection limit or stated reporting limit no data available or no limit established "= EPA Action Level EPA Secondary MCL Blanks = field, MD and method blanks Bold = Concentrations above Human Heahh or Chronic Surface Water Standard Shaded and Bolo = Concentration above Acute and Chronic Surface Water Standards SW Standard = Surface water standard (action level) = Surface Water Standards based on Class C Freshwater Aquafic Life stream classification for the Bearskin Swamp per 15A NCAC 2B. MDL = laboratory method detection limit Data prior to April 2017 provided by SBME Engineednq Laboratory method blank data was unavailable for data prior to April 2017. However, B flags for the 05105108, 10/20/09, 04/25/14, and 10/02/14 were present on laboratory electronic files. SWS Reportinq Limit= NCPQL prior to 2007 and NCSWSL starfing on 01/18/07 4 GOLDER 6of6 August 2019 1668421,105 TABLE 7 Summary of Surface Water Field Parameters Detected Constituents White Street Landfill - Phase ll, Permit No. 41-03 Greensboro, North Carolina Detected Constituent Reporting Upstream Surface Water Monitoring Points Downstream Surface Water Monitoring Points (SW Standard) Units Sample Dale SW-1 SW-2 SW-3 SW-4 SW-5 pH (Field) S.U. 03/25/99 7.27 7.26 7.30 - S.U. 09/23/99 7.15 7.54 6.86 - - S.U. 03/27/00 8.06 8.15 7.89 8.19 8.02 S.U. 09/13/00 7.56 7.31 ND 7.25 7.06 S.U. 03/12/01 7.51 7.29 7.29 7.24 7.18 S.U. 09/13/01 7.51 7.51 7.22 7.24 7.18 S.U. 03/07/02 7.20 7.26 7.04 7.20 6.80 S.U. 09/18/02 7.43 7.33 - 7.36 6.97 S.U. 04/15/03 7.87 7.60 7.61 7.50 7.62 S.U. 10/15/03 7.26 6.80 6.98 7.15 6.99 S.U. 03/24/04 9.50 8.80 8.99 8.63 8.63 S.U. 09/22/04 7.76 7.26 7.61 7.61 7.63 S.U. 05/10/05 9.56 9.41 9.36 9.45 9.28 S.U. 10/11/05 7.37 7.07 7.19 7.17 7.35 S.U. 04/24/06 7.11 6.99 6.86 7.20 7.38 S.U. 10/16/06 -- -- -- -- -- S.U. 04/10/07 6.24 6.64 6.55 7.02 7.16 S.U. 09/25/07 6.81 7.28 6.28 7.36 7.20 S.U. 05/02/08 -- -- -- -- -- S.U. 12/05/08 -- 7.82 7.56 7.85 7.98 S.U. 04/16/09 -- 8.01 8.13 7.89 7.89 S.U. 10/07/09 -- - - - - S.U. 04/28/10 - - - - - S.U. 10/05/10 - 8.05 7.65 8.05 7.81 S.U. 05/10/11 7.74 7.74 7.71 7.64 7.54 S.U. 10/06/11 7.21 7.26 6.90 7.22 7.70 S.U. 04/16/12 - - - - - S.U. 10/24/12 - - - - - S.U. 04/24/13 6.97 7.24 6.92 7.16 7.63 S.U. 09/09/13 7.68 8.30 7.59 7.76 7.69 S.U. 04/22/14 7.54 7.29 7.30 7.37 7.02 S.U. 10/01/14 8.03 8.03 7.88 7.72 7.84 S.U. 04/07/15 8.13 7.77 7.59 7.84 7.79 S.U. 10/06/15 7.27 7.37 7.34 7.62 7.19 S.U. 04/18/16 7.57 7.68 7.56 7.29 7.39 S.U. 09/26/16 7.22 6.75 7.21 7.30 7.34 S.U. 04/25/17 7.41 7.40 7.14 7.28 7.22 S.U. 10/1 7/1 7 7.38 6.88 7.07 7.45 794 S.U. 04/16/18 7.48 7.38 7.42 7.67 138 S.U. 10/16/18 7.49 8.01 7.50 7.43 7.40 S.U. 04/12/19 7.07 6.50 7.69 7.28 7.50 Specifc Conductance (Field) uS/cm 03/25/99 347 155 309 - - uS/cm 09/23/99 811 123 487 - - uS/cm 03/271 0 417 186 363 318 315 US= 09/13/00 303 233 ND 471 438 US/cm 03/12/01 6919 6145 6145 6393 5960 U.- 09/13/01 6919 7324 6063 6393 5960 us/cm 03/07/02 420 377 577 561 555 uS/cm 09/18/02 248 271 - 449 469 us/cm 04/15/03 74 254 261 345 325 U.-10/15/03 215 256 357 334 340 US/cm 03/24/04 293 253 410 378 379 uS/cm 09/22/04 242 223 234 424 1 US/cm 05/10/05 283 271 391 387 390 us/cm 10/11/05 167 215 319 264 269 US,"` 04/24/06 195 182 335 286 404 u.m 10/16/06 -- -- -- -- -- uS/cm 04/10/07 31.9 28.9 43.6 42.9 43.5 u. 09/25/07 31.0 13.0 57.0 53.0 54.0 US/cm 0 /02/08 -- -- -- -- -- uS/cm 12/05/08 -- 31.6 32.6 31.1 29.1 uS/cm 04/16/09 -- 19.8 23.8 26.5 24.9 uS/cm 10/07/09 - - - - - US/cm 04/28/10 - - - - - uS/cm 10/05/10 - 27.9 54 38.9 35.7 uS/cm 05/10/11 256 209 345 412 405 us/cm 10/06/11 309 218 529 462 446 us/cm 04/16/12 - - - - - US/cm 10/24/12 - - - - - us/cm 04/24/13 237 242 381 362 380 US/cm 09/09/13 327 266 461 439 448 US/cm 04/22/14 337 275 430 375 420 US/cm 10/01/14 276 228 454 444 "1 uS/cm 04/07/15 318 255 400 378 423 uS/cm 10/06/15 229 151 337 299 284 US,"` 04/18/16 254 183 313 307 300 U." 09/26/16 293 214 439 412 427 U., 04/25/17 211 198 318 272 1272 U." 10/17/17 209 171 211 241 263 US/cm 04/16/18 233 215 234 217 227 uS/cm 10/16/18 191 264 159 209 254 us/cm 04/12/19 129 210 158 1 270 248 GOLDER 1of2 August 2019 1668421,105 TABLE 7 Summary of Surface Water Field Parameters Detected Constituents White Street Landfill - Phase ll, Permit No. 41-03 Greensboro, North Carolina Detected Constituent Reporting Upstream Surface Water Monitoring Points Downstream Surface Water Monitoring Points (SW Standard) Units Sample Data SW-1 SW-2 SW-3 SW-4 SW-5 Temperature (Field) °C 03/25/99 11.81 11.22 13.86 -- -- °C 09/23/99 18.45 17.18 21.83 -- -- °C 03/27/00 14.85 15.73 17.17 15.53 14.29 °C 09/13/00 25.27 23.45 - 24.96 25.53 °C 03/12/01 14.86 16.71 16.71 15.51 16.5 2 °C 09/13/01 14.86 16.65 16.74 15.51 16.52 °C 03/07/02 12.12 13.02 16.45 14.40 13.20 °C 09/18/02 18.66 16.70 - 19.05 18.96 °C 04/15/03 21.65 22.24 20.92 20.11 17.23 °C 10/15/03 17.39 18.39 20.06 18.45 20.33 °C 03/24/04 16.00 18.06 17.17 15.83 17.22 °C 09/22/04 22.67 21.95 25.28 24.17 22.95 °C 05/10/05 24.09 22.85 23.97 23.69 21.78 °C 10/11/05 18.60 18.30 20.60 20.00 19.80 °C 04/24/06 18.30 16.26 18.47 19.05 22.24 °C 10/16/06 - - - - - °C 04/10/07 10.55 8.05 12.20 14.82 13.49 °C 09/25/07 17.06 21.61 23.84 18.61 19.48 °C 05/02/08 - - - - - °C 12/05/08 - 7.00 11.30 9.50 8.80 °C 04/16/09 -- 12.20 14.30 14.50 13.20 °C 10/07/09 -- - - - - °C 04/28/10 -- - - - - °C 10/05/10 - - - - - °C 05/10/11 19.10 17.50 19.30 19.40 19.50 °C 10/06/11 16.16 13.10 19.10 17.80 18.67 °C 04/16/12 - - - - - °C 10/24/12 - - - - - °C 04/24/13 16.35 14.24 17.40 16.28 16.20 °C 09/09/13 24.70 22.80 25.50 24.80 25.00 °C 04/22/14 15.70 12.90 16.80 17.70 15.30 °C '0101/14 19.33 19.21 21.28 19.92 22.08 °C 04/07/15 17.50 16.70 18.50 17.90 16.00 °C 10/O6/15 18.76 17.11 21.82 20.90 19.20 °C 04/18/i6 18.85 18.38 19.83 19.23 18.57 °C 09/26/16 21.60 20.60 23.80 22.50 22.60 °C 04/25/17 21.17 19.60 20.20 20.56 10.05 °C 10/17/17 15.42 15.62 11.55 16.71 16.86 °C 04/16/18 11.75 9.66 8.67 12.24 12.24 °C loll 6/18 14.7 14.9 14.9 13.2 19.8 °C 04/12/19 17.4 15.7 19.1 17.5 19.3 Turbidity (Field) NTU 04/25/17 13.9 7.05 96.5 14.7 9.02 NTU 10/17/17 5.89 2.71 73.8 8.40 5.78 NTU 04/16/18 13.9 12.5 14.6 26.3 22.4 NTU 10/16/18 4.94 4.84 3.77 9%7 5.30 NTU 04/12/19 4.04 26.1 16.5 5.24 7.97 Oxidation Reduction Potential (field) my 04/25/17 69.8 50.6 72.3 79.4 77.3 mV 10/17/17 81.7 60.9 174.0 81.3 10.7 my 04/16/18 119.5 95.2 202.0 190.5 115.8 mV 10/16/18 115.1 61.7 97.2 143.1 7.9 my 04/12/19 124.5 143.2 5.3 101.8 332.5 Dissolved Oxygen (field) mg/L 04/25/17 7.22 7.50 7.44 6.91 7.02 mg/L 10/17/17 8.33 8.08 8.37 8.01 6.90 mg/L 04/16/18 8.01 8.97 7.92 7.18 8.13 mg/L 10,16/18 5.95 10.74 6.99 7.06 5.81 m /L 04/12/19 6.91 7.94 6.73 7.19 9.47 Notes: S.U. = Standard Units NTU = Nephelometric Turbidity Units uS/cm = microsiemens per centimeter mg/L = milligramer per liter - = no data available Data prior to April 2017 provided by S&ME Engineering GOLDER 2of2 Figures LL `' SW-3 LOCATED —1600 FT. WEST —49UU F 1. VVE6 I 0 SW-2 LOCATED —500 FT. WEST / CLIENT CITY OF GREENSBORO CONSULTANT MSW LANDFILL LIMITS OF WASTE YYYY-M M-D D DESIGNED r 0 L D E R PREPARED REVIEWED GOLDER ASSOCIATES NC, INC APPROVED SW-4 LOCATED —900 FT. EAST 2019-05-29 ALM SIB DYR RPK LEGEND O �-1 NM --------------------------- PL SURFACE WATER MONITORING POINT COMPLIANCE GROUNDWATER MONITORING WELL NES / SENTINEL GROUNDWATER MONITORING WELL NONCOMPLIANCE GROUNDWATER MONITORING WELL LEACHATE SAMPLING LOCATION GROUNDWATER SURFACE CONTOUR APPROXIMATE GROUNDWATER FLOW SEGMENT USED TO CALCULATE GRADIENT NOT MEASURED STREAMS MINOR CONTOURS (2 FT. INTERVAL) MAJOR CONTOURS (10 FT. INTERVAL) APPROXIMATE LIMITS OF WASTE APPROXIMATE PROPERTY LINE NOTES 1. TOPOGRAPHIC CONTOUR INTERVAL = 10 FEET. 2. GROUNDWATER SURFACE CONTOUR INTERVAL = 2 FEET. 3. GROUNDWATER ELEVATIONS MEASURED ON APRIL 8, 2019. 4. GROUNDWATER CONTOURS ARE BASED ON LINEAR INTERPOLATION BETWEEN AND EXTRAPOLATION FROM KNOWN DATA, TOPOGRAPHIC CONTOURS, AND KNOWN FIELD CONDITIONS. THEREFORE, GROUNDWATER CONTOURS MAY NOT REFLECT ACTUAL GROUNDWATER CONDITIONS. 5. GROUNDWATER CONTOUR LINES SHOW THE WATER TABLE SHAPE AND ELEVATION. THESE CONTOURS ARE INFERRED LINES FOLLOWING THE GROUNDWATER SURFACE AT A CONSTANT ELEVATION ABOVE SEA LEVEL. THE GROUNDWATER FLOW DIRECTION IS GENERALLY PERPENDICULAR TO THE GROUNDWATER SURFACE CONTOURS, SIMILAR TO THE RELATIONSHIP BETWEEN SURFACE WATER FLOW AND TOPOGRAPHIC CONTOURS. 6. ELEVATIONS SHOWN IN THIS DRAWING ARE IN FEET ABOVE MEAN SEA LEVEL DATUM ("MEAN SEA LEVEL DATUM" REFERS TO THE NATIONAL GEOTETIC VERTICAL DATUM (NGVD) OF 1929) AND COORDINATES ARE EXPRESSED IN TERMS OF THE STATE PLANE COORDINATE SYSTEM. 7. SURFACE WATER LOCATIONS ARE APPROXIMATE. 8. TOPOGRAPHY PROVIDED BY BRADY SURVEYING CO. FROM AERIAL PHOTOGRAPHY DATED NOVEMBER 9, 1994 FACILITY AREA UPDATED MAY 18, 1996. 9. 7.5 MINUTE USGS QUADRANGLE, MCLEANSVILLE, NORTH CAROLINA, 2016. y0 T4yf `ro - WRIM gRO [10 cr T 7q0 0 BE"n Ae KEELY RD y of HUt7`INE >w�E jeD cc SITE LOCATION MAP NOT TO SCALE 0 400 800 1" = 400' FEET PROJECT WHITE STREET LANDFILL CITY OF GREENSBORO GREENSBORO, NORTH CAROLINA TITLE GROUNDWATER SURFACE CONTOUR MAP APRIL 8, 2019 PROJECT NO. PHASE FIGURE 1668421 105 0 0 LEGEND ❑ SW-1 SURFACE WATER MONITORING POINT ,ate' '�1.''•.. � _ r sri CLIENT CITY OF GREENSBORO 6, ULJIUN CU xr GO L D E R PREPARED SEP REVIEWED DYR GOLDER ASSOCIATES NC, INC. APPROVED RPK 1 NOTES 1. SURFACE WATER LOCATIONS ARE APPROXIMATE. 2. 7.5 MINUTE USGS QUADRANGLE, MCLEANSVILLE, NORTH CAROLINA, 2016. SITE LOCATION MAP NOT TO SCALE o 0 0 1500 3000 1" = 1500' FEET PROJECT WHITE STREET LANDFILL CITY OF GREENSBORO GREENSBORO, NORTH CAROLINA TITLE SURFACE WATER LOCATION MAP PROJECT NO. FIGURE 166842117 0 2 APPENDIX A Groundwater and Surface Water Sampling Logs GOLDER Project Name: White Street LF Well ID: -L i Well Diameter: 2 inches Depth to Bottom: feet Pumping Rate: 01 mL/min. Well Location: Equipment: YS7. vL DATE: � Ito 1 11� GROUNDWATER SAMPLING LOG Project No./Phase No.: 1668421 Sampler(s): A. Martin/ E. Vasko Initial Depth to Water: feet Water Column Thickness• feet System Volume: mL F� lVI`�7 019� U10WIM t r Mmi Rome 6M Comments (weather conditions, color, type of sample urge -water management, etc.): Weather: c x v (a � = V •S Signature: 0 - t" a, I �_ QA/QC Sign Off: Date: Akio I rl Date: GOLDER Project Name: White Street LF Well ID: -M= Z Well Diameter: 2 inches Depth to Bottom: Z j , Do feet Pumping Rate: Z GC mUmin Well Location: Equipment: DATE: �- — ) I _ 16( GROUNDWATER SAMPLING LOG Project No./Phase No.: 1668421 Sampler(s); iV E. Vasko Initial Depth to Water: r c feet Water Column Thickness: l feet System Volume: ) -l2 ' - ' mL �® ,is • ' •-• Comments (weather conditions, color, type of sample, purge -water management, etc.): Weather. C (cc,d5 Signature: Date: _ff~ ( l QA/QC Sign Off: Date: GOLDER Project Name: White Street LF Well ID: = '3 Well Diameter: 2 inches Depth to Bottom: 32 . feet Pumping Rate: Z 9--o (b c) mL/min. Well Location: Equipment: DATE: GROUNDWATER SAMPLING LOG Project No./Phase No.: 1668421 Sampler(s); E. Vasko Initial Depth to Water: j L- P feet Water Column Thickness: t?, 16 feet System Volume: ( 1_SI' mL Time pH (S.U.) Cond. (mS/cm) Turb (NTU) Dis 02 (mg/L) Temp. (°C) ORP (millivolts) DTW (feet) o s 3, ( I 71 3S l S 6G i 2 -7, 3 10, G .304-, S. (Go Ct 62 0, 2 , Y 0, 16,1 3Q2. G l S1C3 11 2Z - 0 01Z 1 S. 3S2 . `L S 3S G l 3 c, i173 1 IT 0(2-1 2,-7 3 -6 - Z ,3 0,2 2 3 3, ,°CS S� 3, ZG. 1 0131 1 _ s, ,q 3 ,63 4sS 2 7, o za 5 3IT, D S 7, z7 , ZS� 3 4-, G ID fi S,G 9- S7,1 Z 1 G12 C. 3 ¢-° D 4-Dl 5.65 t $, ?7, d, 3 f 302. 1 M S S S,� 6.3 2S.z 36 ZQ7� 7 , 5,65 sS-z 2, 0 Z ,s 0 4- G 55,5 (,0 d, 4- J a'? `Zgo'q � S row 4 4� z2�s a ¢ �. 2?$, f S ' co 53, 3 'Z -7 0.-7-7Z-76 , G ¢ S _ 11 S, 7 S2, l '7 t2C� s 153,5 23 c f,z3 (Z 2 S,ct C� (13� s,�7 tS�,F 2f < 1,3z 17,3 zy&S t4-(77 Comments (weather conditions, color, type of sample, purge -water management, etc.): Weather. C I r,�. - 2> 0 Vx % 10 Z sM 12le- Purge: (000 4ddi1x(lai Cle2d WMi(& t M F. i (� C V::7 Z Signature: (%� �W/Date: ll l QA/QC Sign Off: Date: GOLDER Project Name: White Street LF Well ID: )- 3 f3 Well Diameter: 2 inches Depth to Bottom Pumping Rate: Well Location: Equipment: Z 5, O feet C2 C' mUmin DATE: 4- - 1 1 - 1 GROUNDWATER SAMPLING LOG Project No./Phase No.: 1668421 Sampler(s): IV" E. Vasko Initial Depth to Water: feet Water Column Thickness: Z, feet System Volume: f 7 9 ( mL ®® ® • , • • , Comments (weather conditions, color, type of sample, purge -water management, etc.): Weather: Purge: 123-;y Signature: i/ VVc Date: ¢ l fl " G QA/QC Sign Off: Date: GOLDER Project Name: White Street LF Well ID: �- 4-- A Well Diameter: 2 inches Depth to Bottom: Z S , G feet Pumping Rate: Z Zd mUmin. Well Location: Equipment: DATE: q--- l 1 - I q GROUNDWATER SAMPLING LOG Project No./Phase No.: 1668421 Sampler(s); A. Martin/ E. Vasko Initial Depth to Water: 6,23 feet Water Column Thickness: feet System Volume: JZ R3 mL ®® ® --DIS • • •imp Comments (weather conditions, color, type of sample, purge -water management, etc.): Weather: C fear sly CS D - : Purge: Q $ S ,,ten " I Signature: f/ vy v GG� Date: ¢' ( ice(/ q QA/QC Sign Off: Date: Project Name: White Street LF Well ID: Gj Well Diameter: 2 inches Depth to Bottom: f 0. c, C, feet Pumping Rate: 1001 mUmin. Well Location: Equipment: DATE: 1 - (Q - t 6( GROUNDWATER SAMPLING LOG Project No./Phase No.: 1668421 Sampler(s);--A_.f4k'a/ E. Vasko Initial Depth to Water: feet Water Column Thickness: te,s feet System Volume: Q q % mL ®® ® Dis • • • �Mr MEN a", c (oD h 6, -5`b -5I /< / � 0 ,-G'k LL-7 6 r 35 (6[D C.38 326,7 1,3 (�,-7 7,3-Z Comments (weather conditions, color, type of sample, purge -water management, etc.): Weather: C ( 6q_-C' S<< ; S Signature: Date: � -(O -f R QA/QC Sign Off: Date: c- 2 GOLDER Project Name: White Street LF Well ID: a L- - S-Well Diameter: 2 inches Depth to Bottom: (G , [3 C feet Pumping Rate: (0G mL/min. Well Location: Equipment: DATE: / - GROUNDWATER SAMPLING LOG Project No./Phase No.: 1668421 Sampler(s), -- tn/ E. Vasko Initial Depth to Water: S S C feet Water Column Thickness: feet System Volume: 10 Q '� mL POWER �M11��i��'� Comments (weather conditions, color, type of sample, purge -water management, etc.): Weather. C'(e-g.C' Ad�'i--r'ag,I 7,l 1--uwve_:i s h0+/`-ice.Ic' vn Purge: ( 35 g- 9 5 i, m I �. A/T- v --'I. --�S 4- Signature: �/ti✓L-- V QA/QC Sign Off: Date: HO Date: 2 cf Z IDa (o Lo ';51" GOLDER DATE: GROUNDWATER SAMPLING LOG Project Name: White Street LF Project No./Phase No.: 1668421 Well ID: -1'T -lQ -__ Sampler(s); A. Martin/ E. Vasko Well Diameter: 2 inches Initial Depth to Water: 2,04 1feet Depth to Bottom: 12.0 feet Water Column Thickness: feet Pumping Rate: I Co mL/min. System Volume: mL Well Location: Equipment: 21b(-)V' I ts! ✓v��-�P� MU PER M. ■[mil-Sifi�� r s� —lr / &1,1 rw� - W Comments (weather conditions, color, type of sample, purge -water management, etc.): Weather. `�O�c 6 Purge: 0GJ rj:a Signature: Date: Lil u QA/QC Sign Off: Date: IF%\ 0 �_ a ,4 GOLDER Project Name: White Street LF Well ID: IT— 1p Well Diameter: 2 inches Depth to Bottom: feet Pumping Rate: ®!ij mL/min. Well Location: Equipment: DATE: �_/ U /M GROUNDWATER SAMPLING LOG Project No./Phase No.: 1668421 Sampler(s); A. Martin/ E. Vasko Initial Depth to Water: T H feet Water Column Thickness: feet System Volume: f::5 mL �=M� (mg/L)w MET-1 • it Comments (weather conditions, color, type of sample, purge -water management, etc.): Weather: Purge: Signature: QA/QC Sign Off: Date: Date: ` %2oF A ( 35` GOLDER Project Name: White Street LF Well ID: Well Diameter: 2 inches Depth to Bottom: 271,s feet Pumping Rate: 1,6 O mL/min Well Location: r rn '�vee v� Equipment: DATE: GROUNDWATER SAMPLING LOG Project No./Phase No.: 1668421 Sampler(s); A. Martin/ E. Vasko Initial Depth to Water: i3m 1 -;5 feet Water Column Thickness:T¢, S 7 feet System Volume: ` 3� mL ® ® ' , • • R�R�:�� ►��e . C IiL�.'��no W IMIMUMIMIF�7K�4 i WR�7EMU Comments (weather conditions, color, type of sample, purge -water management, etc.): Weather: + i � "x i W-%N \J Signature:k QA/QC Sign Off: Date: A tk Date: DATE: C'1 7' �'� GROUNDWATER SAMPLING LOG GOLDER Project Nam.�e^: �JW t J f° e� Project /Phase No.: Well ID: lj Sampler(s): )42�, vv-\-Av ;:l c-, Well Diameter: 2 inches Initial Depth to Water: ',1�, feet Depth to Bottom: '3a S feet Water Column Thickness: feet Pumping Rate: mUmin System Volume. �,a� mL Well Location: - Equipment: Uc) vD C �® Dis.• •-: i '' rr' [I "a r BMW , r� � � r 42 MINE Comments fwpther conditions, color, type of sample, purge -water management, etc.): Weather: Ch r %i L,6' Beain nuraina a- \ 7 X `'7n Signatu Date: ` QA/QC Sign Off: Date: �ZZC Y219k vZ:7- GOLDER Project Name: White Street LF Well ID: Well Diameter: 2 inches Depth to Bottom: [." feet Pumping Rate: mUmin. Well Location: , l 6 hvnn, _-r, p. 1 (kv DATE: �d GROUNDWATER SAMPLING LOG Project No./Phase No.: Sampler(s); 1668421 A. Martin/ E. Vasko Initial Depth to Water: .� Water Column Thickness: System Volume: ic-)010( feet feet mL Equipment: V�Q ' ®® • • ® Dis •0 r low\�� i E ��"3F1 5zKG=&NvUv wrdomc_ ■� 9 AA �V? IV AIM Comments (weather conditions, color, type of sample, purge -water management, etc.): Weather:O` Purge: QA/QC Sign Off: Date: M 0, Date: GOLDER Project Name: White Street LF Well ID: ]- CA, Well Diameter: 2 inches Depth to Bottom: 5, D feet Pumping Rate: Q mUmin Well Location: Equipment: DATE: GL GROUNDWATER SAMPLING LOG Project No./Phase No.: 1668421 Sampler(s); A-AAa#iflf E. Vasko Initial Depth to Water: Y, l 1Z feet Water Column Thickness: feet System Volume: 13 mL Comments (weather conditions, color, type of sample, purge -water management, etc.): Weather: C l e ti r Purge: M Signature: C�/�/�l� V uc� Date: 6L� QA/QC Sign Off: Date: GOLDER DATE: LC) GROUNDWATER SAMPLING LOG Project Name: White Street LF Project No./Phase No.: 1668421 Well ID: �'d Sampler(s); A. Martin/ E. Vasko Well Diameter: 2 inches Initial Depth to Water: yC� feet Depth to Bottom: feet Water Column Thickness: Zfeet Pumping Rate: tCU mL/min. System Volume: 144 �cj mL Well Location: `" e� Equipment: Ylb-V �,c� v�n�y' ire "EVAIM HU r N 02� EMM 91WIM. CMS ■w._A ' M t��1Jim camm-N • r r Comments (weather conditions, color, type of sample, purge -water management, etc.): Weather. qC2 !S Signature Date: q I Lo �. ( C� QA/QC Sign Off: Date: kw*o GOLDER DATE: ' GROUNDWATER SAMPLING LOG Project Name: IUV��Sre,��CF`�. k L� Project /Phase No.: Well ID: Sampler(s): aWell Diameter: inches Initial Depth to Water: ►p,� h 2_ feet Depth to Bottom: 19,�EA feet Water Column Thickness: ^feet �cv YID Pumping Rate: mL/min System Volume: ISC, mL - 'Well Location. Y ,� r(Y\Q�k ue : Equipment: �P"�l -4,. `� . C X?�i o0►� .�,r►��c��n�P� -� ��L IMM Comments (weather conditions, color, type of sample, purge -water management, etc.): Weather: `C�� r\4:: n k red c C l-� Signature: kk1,1, hq�� QA/QC Sign Off: Date: V. .1 Date: GOLDER Project Name: White Street LF Well ID: S w- Well Diameter: 2 inches Depth to Bottom: 5 , G feet Pumping Rate: mL/min. Well Location: Equipment: DATE: 4--- 1 G^ (q( GROUNDWATER SAMPLING LOG Project No./Phase No.: 1668421 Sampler(s);/ E. Vasko Initial Depth to Water: , S feet Water Column Thickness: feet System Volume: 11 q 3 mL ®® ® ' , • • , MIS Irm Sou�nP GPI � l`Z Z "/ Comments (weather conditions, color, type of sample, purge -water management, etc.): Signature: �(�„/1, UCAl Date: QA/QC Sign Off: Date: GOLDER Project Name: White Street LF Well ID: SMAt�". 'A Well Diameter: 2 inches Depth to Bottom: 3. feet DATE: �U) � Lq� GROUNDWATER SAMPLING LOG Project No./Phase No.: Sampler(s): 1668421 A. Martin/ E. Vasko Initial Depth to Water: feet Water Column Thickness: ( feet Pumping Rate: tbc) mUmin. System Volume: I LL mL Well Location: Equipment:`-- � �® M ' , • • Comments (weather conditions, color, type of sample, purge -water management, etc.): Weather: S L� Purge: �j Signature: Date: 61 } QA/QC Sign Off: Date: Time ORCO PH S.U. Sp. Cond. US/cm 1 DATE: G O L D E R SURFACE WATER SAMPLING LOG Project Name: Project No./Phase No.: ,ww,Q s\ Sample ID: Sampler(s): �}��,, (/k , VV\ my � n Sampling Location: n. -e Lc�r.d�i`l Equipment: YSI Pro Plus, Hach 2100Q \ Surface Water Sampling Location Sketch •'i Date: l{ (, Z 1 14 Date: ( ` / Z-19 GOLDER DATE: 4- [ Z - tq SURFACE WATER SAMPLING LOG Project Name: W w l ve' a � � � Project No./Phase No.: 1 �'q 6 �' �-2 Sample ID: ��'u) 2 Sampler(s a 5 Af Sampling Location: Equipment: YSI Pro P us, Hach 2100Q Time b:ZA,6 pH s.u. Sp. Cond. us/cm ao V Turb. ntu ..1 Dis. OZ m /L —1,(�t..� 7 Temp. °C ORP my o%`A Surface Water Sampling Location Sketch Comments (sample methodology, weather conditions, color, silt, etc.): -e(a,Q `\ \� �- Signature: l� Y �/1 Date: QA/QC Sign Off: Date: DATE: G O L D E R SURFACE WATER SAMPLING LOG Project Name: ��Q`.� Project No./Phase No.: lie (pRzR �J,l Sample ID: CzA3-22 Sampler(s): 0-2 e- Sampling Location: 4P} Equipment: YSI Pro Plus, Ha h 2100Q Time ifVU pH S.U. f.6� Sp. Cond. US/cm Tu rb. ntu 16 �-- Dis. 02 mg/L l� t Temp. oC M. ORP my •� Surface Water Sampling Location Sketch if0.iJ •f'�i,pct.1 0r bail-e,r� Comments (sample methodology, weather conditions, color, silt, etc.): L Signature: Date: QA/QC Sign Off: Date: DATE: 41 l2ll q SURFACE WATER SAMPLING LOG GOLDER Project Name: Project No./Phase No.: �Plo �l�al Sample ID: Sampler(s): Sampling Location: Equipment: YSI Pro Plus, Hach 2100Q Time OgcA pH S.U. %, 23 Sp. Cond. US/cm 7116 l Turb. ntu J Dis.O2 m /L 1 Temp. 'C ORP my Surface Water Samolino Location Sketch 11 % ments (sample methodology, weather conditions, color, silt, etc.): Signature: V Date: ``A I QA/QC Sign Off:.. Date: GOLDER ,,> DATE: t —I 1 — 1 SURFACE WATER SAMPLING LOG Project Name: White Street LF Project No./Phase No.: 1668421 Sample ID: _7777 Sampler(s): E. Vasko1,A—Mad1t1.E.y Sampling Location: Equipment: YSI Pro Plus, Hach 2100Q Turbidimeter Time (SGG pH s.u. 7,56 Cond. mS/cm `Z 7- pj Turb. ntu 7, q7 Dis. 02 mg/L q 7 / Temp. aC ORP my Surface Water Sampling Location Sketch f (C' w 'YK�S p S�l1W-� ,11-313 Comments (sAmple methodology, weather conditions, color, silt, etc.): Signature: QA/QC Sign Off: K,t,� Date: 4 f l- Iq Date: 6 -10-0 APPENDIX B April 2019 Groundwater Certificates -of -Analysis, Chain -of - Custody Forms and Laboratory Data Reviews ENCO Laboratones Accurate. Timely. Responsive. Innovative. 102-A Woodwinds Industrial Court Cary NC, 27511 Phone: 919.467.3090 FAX: 919.467.3515 Thursday, April 25, 2019 Golder Associates, Inc. (GO007) Attn: Dusty Reedy 5B Oak Branch Drive Greensboro, NC 27407 RE: Laboratory Results for Project Number: 1668421.105, Project Name/Desc: White Street LF-Phase II ENCO Workorder(s): CC05276,CC05934,CC06034,CC06075 Dear Dusty Reedy, Enclosed is a copy of your laboratory report for test samples received by our laboratory between Tuesday, April 9, 2019 and Monday, April 15, 2019. Unless otherwise noted in an attached project narrative, all samples were received in acceptable condition and processed in accordance with the referenced methods/procedures. Results for these procedures apply only to the samples as submitted. The analytical results contained in this report are in compliance with NELAC standards, except as noted in the project narrative if applicable. This report shall not be reproduced except in full, without the written approval of the Laboratory. This report contains only those analyses performed by Environmental Conservation Laboratories. Unless otherwise noted, all analyses were performed at ENCO Cary. Data from outside organizations will be reported under separate cover. If you have any questions or require further information, please do not hesitate to contact me. Sincerely, Stephanie Franz Project Manager Enclosure(s) FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 1 of 6H PROJECT NARRATIVE Date: 25 April 2019 Client: Golder Associates, Inc. (G0007) Project: White Street LF-Phase II Lab ID: CC05276, CC05934, CC06034, CC06075 Overview (� �Eo www.encolabs.com Environmental Conservation Laboratories, Inc. (ENCO) analyzed all submitted samples in accordance with the methods referenced in the laboratory report. Any particular difficulties encountered during sample handling by ENCO are discussed in the QC Remarks section below. Quality Control Samples The spike recoveries of Benzene and Trichloroethene were outside of control limits for the 8260D MS and/or MSD samples. The QC batch was approved based on acceptable LCS recovery of these analytes. LCS/LSCD were analyzed in place of the MS/MSD for the 8260D SIM analysis for 1,4-Dixoane. Cadmium and Selenium were detected in the 6010D Method Blanks; detections of these elements should be considered to have a possible high bias if the concentration in the associated sample is not greater than ten times that of the detection in the Method Blank. Quality Control Remarks The 8260D SIM surrogate spike recovery of Toluene-d8 exceeded acceptance criteria for samples II-1 and II-7B. Other Comments Methylene chloride, a common laboratory contaminant, was detected in the Trip Blank; however, this analyte was not detected in the associated Method Blank. All samples received under this work order arrived in acceptable conditions. The samples were not checked for residual chlorine, as it is not required. The analytical data presented in this report are consistent with the methods as referenced in the analytical report. Any exceptions or deviations are noted in the QC remarks section of this narrative or in the Flags/Notes and Definitions section of the report. Released By: Environmental Conservation Laboratories, Inc. Stephanie Franz Project Manager FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 2 of 6H (� �Eo www.encolabs.com SAMPLE SUMMARY/LABORATORY CHRONICLE Client ID: 4103-MW14 Lab ID: CC05276-01 Sampled: 04/08/19 16:00 Received: 04/09/19 11:42 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 10/05/19 04/11/19 13:38 04/16/19 12:50 EPA 6020B EPA 3005A 10/05/19 04/11/19 10:35 04/15/19 14:59 EPA 8260D EPA 503013_MS 04/22/19 04/11/19 14:22 04/12/19 09:17 EPA 8260D EPA 503013_MS 04/22/19 04/11/19 15:25 04/12/19 04:42 Client ID: 4303-MW14 Lab ID: CC05276-01RE1 Sampled: 04/08/19 16:00 Received: 04/09/19 11:42 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260D EPA 5030B_MS 04/22/19 04/16/19 13:20 04/16/19 23:24 Client ID: 4103-II1 Lab ID: CC05934-01 Sampled: 04/10/19 10:10 Received: 04/11/19 08:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 10/07/19 04/18/19 16:33 04/22/19 11:16 EPA 6020B EPA 3005A 10/07/19 04/16/19 08:41 04/18/19 13:54 EPA 8260D EPA 5030B_MS 04/24/19 04/12/19 00:00 04/12/19 18:39 EPA 8260D EPA 503013_MS 04/24/19 04/17/19 14:45 04/18/19 06:48 Client ID: 4103-II5 Lab ID: CC05934-02 Sampled: 04/10/19 16:30 Received: 04/11/19 08:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 10/07/19 04/18/19 16:33 04/22/19 11:19 EPA 6020E EPA 3005A 10/07/19 04/16/19 08:41 04/18/19 13:58 EPA 8260D EPA 5030B_MS 04/24/19 04/12/19 00:00 04/12/19 19:16 EPA 8260D EPA 503013_MS 04/24/19 04/17/19 14:45 04/18/19 07:18 Client ID: 4103-II8 Lab ID: CC05934-03 Sampled: 04/10/19 11:39 Received: 04/11/19 08:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 10/07/19 04/19/19 07:46 04/22/19 12:56 EPA 6020E EPA 3005A 10/07/19 04/16/19 08:41 04/18/19 14:02 EPA 8260D EPA 503013_MS 04/24/19 04/12/19 00:00 04/12/19 19:51 EPA 8260D EPA 503013_MS 04/24/19 04/17/19 14:45 04/18/19 07:48 Client ID: 4103-II12 Lab ID: CC05934-04 Sampled: 04/10/19 14:46 Received: 04/11/19 08:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 10/07/19 04/19/19 07:46 04/22/19 12:09 EPA 6020E EPA 3005A 10/07/19 04/16/19 08:41 04/18/19 14:15 EPA 8260D EPA 503013_MS 04/24/19 04/12/19 00:00 04/12/19 20:26 EPA 8260D EPA 503013_MS 04/24/19 04/17/19 14:45 04/18/19 08:18 Client ID: 4103-II2 Lab ID: CC06034-01 Sampled: 04/11/19 17:41 Received: 04/12/19 10:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 10/08/19 04/20/19 13:50 04/23/19 13:15 EPA 6020E EPA 3005A 10/08/19 04/18/19 08:14 04/22/19 12:53 EPA 8260D EPA 503013_MS 04/25/19 04/16/19 16:35 04/18/19 10:17 EPA 8260D EPA 5030B_MIS 04/25/19 04/18/19 00:00 04/18/19 16:08 Client ID: 4103-II2 Lab ID: CC06034-OIRE1 Sampled: 04/11/19 17:41 Received: 04/12/19 10:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260D EPA 5030B_MS 04/25/19 04/22/19 00:30 04/22/19 21:07 Client ID: 4103-II3 Lab ID: CC06034-02 Sampled: 04/11/19 11:39 Received: 04/12/19 10:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 10/08/19 04/20/19 13:50 04/23/19 13:18 EPA 6020E EPA 3005A 10/08/19 04/18/19 16:07 04/19/19 12:31 EPA 8260D EPA 5030B_MS 04/25/19 04/16/19 16:35 04/18/19 10:49 EPA 8260D EPA 5030B_MS 04/25/19 04/18/19 00:00 04/18/19 16:44 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 3 Of 68 (� �Eo www.encolabs.com SAMPLE SUMMARY/LABORATORY CHRONICLE Client ID: 4103-II3 Lab ID: CC06034-02RE1 Sampled: 04/11/19 11:39 Received: 04/12/19 10:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(sl EPA 8260D EPA 503013_MS 04/25/19 04/22/19 00:30 04/22/19 21:39 Client ID: 4303-II4A Lab ID: CC06034-03 Sampled: 04/11/19 09:14 Received: 04/12/19 10:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(sl EPA 6010D EPA 3005A 10/08/19 04/20/19 13:50 04/23/19 13:37 EPA 6020E EPA 3005A 10/08/19 04/18/19 16:07 04/19/19 13:31 EPA 8260D EPA 503013_MS 04/25/19 04/18/19 00:00 04/18/19 17:20 EPA 8260D EPA 5030B_MS 04/25/19 04/18/19 16:33 04/19/19 12:02 Client ID: 4103-II6 Lab ID: CC06034-04 Sampled: 04/11/19 11:35 Received: 04/12/19 10:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 10/08/19 04/20/19 13:50 04/23/19 13:40 EPA 6020B EPA 3005A 10/08/19 04/18/19 16:07 04/19/19 13:36 EPA 8260D EPA 5030B_MS 04/25/19 04/18/19 16:33 04/19/19 12:34 Client ID: 4103-II6 Lab ID: CC06034-04RE1 Sampled: 04/11/19 11:35 Received: 04/12/19 10:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260D EPA 503013_MS 04/25/19 04/19/19 13:40 04/19/19 16:09 Client ID: 4103-II7 Lab ID: CC06034-05 Sampled: 04/11/19 14:21 Received: 04/12/19 10:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 10/08/19 04/20/19 13:50 04/23/19 13:42 EPA 6020E EPA 3005A 10/08/19 04/18/19 16:07 04/19/19 13:40 EPA 8260D EPA 5030B_MS 04/25/19 04/18/19 00:00 04/18/19 18:32 EPA 8260D EPA 5030B_MIS 04/25/19 04/18/19 16:33 04/19/19 13:05 Client ID: 4303-Duplicate II Lab ID: CC06034-08 Sampled: 04/11/19 00:00 Received: 04/12/19 10:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(sl EPA 6010D EPA 3005A 10/08/19 04/20/19 13:50 04/23/19 13:45 EPA 6020E EPA 3005A 10/08/19 04/18/19 16:07 04/19/19 13:44 EPA 8260D EPA 503013_MS 04/25/19 04/18/19 16:33 04/19/19 13:37 Client ID: 4303-Duplicate II Lab ID: CC06034-08RE1 Sampled: 04/11/19 00:00 Received: 04/12/19 10:30 Parameter Preparation Hold Date/Time(sl Prep Date/Time(s) Analysis Date/Time(s) EPA 8260D EPA 503013_MS 04/25/19 04/19/19 13:40 04/19/19 16:43 Client ID: 4303-Trip Blank II Lab ID: CC06034-09 Sampled: 04/11/19 09:14 Received: 04/12/19 10:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260D EPA 503013_MS 04/25/19 04/18/19 00:00 04/18/19 19:45 EPA 8260D EPA 5030B_MS 04/25/19 04/18/19 16:33 04/19/19 14:09 Client ID: 4303-II7B Lab ID: CC06075-01 Sampled: 04/12/19 12:39 Received: 04/15/19 10:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(sl EPA 6010D EPA 3005A 10/09/19 04/22/19 12:03 04/24/19 16:44 EPA 6020E EPA 3005A 10/09/19 04/18/19 16:07 04/19/19 14:14 EPA 8260D EPA 503013_MS 04/26/19 04/18/19 14:22 04/19/19 01:05 EPA 8260D EPA 503013_MS 04/26/19 04/19/19 11:31 04/20/19 04:54 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 4 Of 68 (� �Eo www.encolabs.com SAMPLE DETECTION SUMMARY Client ID: 4103-MW14 Lab ID: CCO5276-01 Anala Results Flag MDL POLL Units Method Notes Barium - Total 17.0 1.10 10.0 ua/L EPA 6010D I Client ID: 4103-MW14 Lab ID: CC05276-01RE1 Anala Results Flag MDL POLL Units Method Notes Chloroform 0.67 1 0.18 1.0 ug/L EPA 8260D Client ID: 4103-II1 Lab ID: CC05934-01 Anala Results Flag MDL POLL Units Method Notes 1,2-Dichlorobenzene 0.55 1 0.19 1.0 ug/L EPA 8260D 1,4-Dichlorobenzene 7.9 0.19 1.0 ug/L EPA 8260D 1,4-Dioxane 120 D 6.0 10 ug/L EPA 8260D Barium - Total 288 1.10 10.0 ug/L EPA 6010D Chlorobenzene 2.9 0.17 1.0 ug/L EPA 8260D Chromium - Total 3.07 1 1.40 10.0 ug/L EPA 6010D Cobalt - Total 27.3 1.40 10.0 ug/L EPA 6010D Copper - Total 4.04 1 1.60 10.0 ug/L EPA 6010D Nickel - Total 25.4 2.20 10.0 ug/L EPA 6010D Tetrahydrofuran 4.9 0.53 1.0 ug/L EPA 8260D Zinc - Total 9.25 1 4.40 10.0 ug/L EPA 6010D Client ID: 4103-II5 Lab ID: CCO5934-02 Anala Results Flag MDL POLL Units Method Notes 1,4-Dioxane 2.4 1.2 2.0 ug/L EPA 8260D Barium - Total 101 1.10 10.0 ug/L EPA 6010D Chromium - Total 3.17 1 1.40 10.0 ug/L EPA 6010D Cobalt - Total 3.65 1 1.40 10.0 ug/L EPA 6010D Copper - Total 2.49 1 1.60 10.0 ug/L EPA 6010D Nickel - Total 4.40 1 2.20 10.0 ug/L EPA 6010D Vanadium - Total 4.30 1 1.40 10.0 ug/L EPA 6010D Zinc - Total 16.5 4.40 10.0 ug/L EPA 6010D Client ID: 4103-II8 Lab ID: CC05934-03 Anala Results Flag MDL POLL Units Method Notes 1,4-Dioxane 290 D 12 20 ug/L EPA 8260D Barium - Total 180 1.10 10.0 ug/L EPA 6010D Chlorobenzene 1.9 0.17 1.0 ug/L EPA 8260D Chromium - Total 3.71 1 1.40 10.0 ug/L EPA 6010D Cobalt - Total 6.20 1 1.40 10.0 ug/L EPA 6010D Copper - Total 12.2 1.60 10.0 ug/L EPA 6010D Nickel - Total 96.2 2.20 10.0 ug/L EPA 6010D Tetrahydrofuran 11 0.53 1.0 ug/L EPA 8260D Vanadium - Total 3.21 1 1.40 10.0 ug/L EPA 6010D Client ID: 4103-II12 Lab ID: CC05934-04 Anala Results Flag MDL POLL Units Method Notes Barium - Total 104 1.10 10.0 ug/L EPA 6010D Chromium - Total 1.87 1 1.40 10.0 ug/L EPA 6010D Cobalt - Total 3.19 1 1.40 10.0 ug/L EPA 6010D Copper - Total 4.16 1 1.60 10.0 ug/L EPA 6010D Methylene chloride 0.46 1 0.23 1.0 ug/L EPA 8260D Nickel - Total 5.40 1 2.20 10.0 ug/L EPA 6010D Vanadium - Total 5.77 1 1.40 10.0 ug/L EPA 6010D Zinc - Total 4.53 1 4.40 10.0 ug/L EPA 6010D FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 5 Of 68 (� �Eo www.encolabs.com SAMPLE DETECTION SUMMARY Client ID: 4103-II2 Lab ID: CC06034-01 Anala Results Flag MDL POLL Units Method Notes 1,1-Dichloroethane 4.8 0.13 1.0 ug/L EPA 8260D 1,4-Dichlorobenzene 3.3 0.19 1.0 ug/L EPA 8260D 1,4-Dioxane 2.6 1.2 2.0 ug/L EPA 8260D Barium - Total 57.7 1.10 10.0 ug/L EPA 6010D Chlorobenzene 0.87 1 0.17 1.0 ug/L EPA 8260D cis-1,2-Dichloroethene 12 0.15 1.0 ug/L EPA 8260D Tetrachloroethene 0.42 1 0.17 1.0 ug/L EPA 8260D Trichloroethene 1.2 0.15 1.0 ug/L EPA 8260D Vinyl chloride 1.4 0.32 1.0 ug/L EPA 8260D Client ID: 4103-II3 Lab ID: CC06034-02 Anala Results Flag MDL POLL Units Method Notes 1,1-Dichloroethane 4.4 0.13 1.0 ug/L EPA 8260D Barium - Total 257 1.10 10.0 ug/L EPA 6010D Benzene 0.93 1 0.15 1.0 ug/L EPA 8260D Chromium - Total 2.57 1 1.40 10.0 ug/L EPA 6010D cis-1,2-Dichloroethene 0.56 1 0.15 1.0 ug/L EPA 8260D Cobalt - Total 12.1 1.40 10.0 ug/L EPA 6010D Copper - Total 2.20 1 1.60 10.0 ug/L EPA 6010D Nickel - Total 9.59 1 2.20 10.0 ug/L EPA 6010D Vanadium - Total 2.08 1 1.40 10.0 ug/L EPA 6010D Zinc - Total 15.8 4.40 10.0 ug/L EPA 6010D Client ID: 4303-II4A Lab ID: CC06034-03 Anala Results Flag MDL POLL Units Method Notes 1,4-Dichlorobenzene 1.1 0.19 1.0 ug/L EPA 8260D 1,4-Dioxane 83 D 6.0 10 ug/L EPA 8260D Barium - Total 166 1.10 10.0 ug/L EPA 6010D Benzene 0.45 1 0.15 1.0 ug/L EPA 8260D Chlorobenzene 3.5 0.17 1.0 ug/L EPA 8260D Chromium - Total 2.75 1 1.40 10.0 ug/L EPA 6010D Nickel - Total 59.0 2.20 10.0 ug/L EPA 6010D Vanadium - Total 3.54 1 1.40 10.0 ug/L EPA 6010D Client ID: 4103-II6 Lab ID: CC06034-04 Anala Results Flag MDL POLL Units Method Notes Barium - Total 46.0 1.10 10.0 ug/L EPA 6010D Copper - Total 86.0 1.60 10.0 ug/L EPA 6010D Lead - Total 6.04 1 3.10 10.0 ug/L EPA 6010D Nickel - Total 2.25 1 2.20 10.0 ug/L EPA 6010D Zinc - Total 68.9 4.40 10.0 ug/L EPA 6010D Client ID: 4103-II6 Lab ID: CC06034-04RE1 Anala Results Flag MDL POLL Units Method Notes 1,4-Dioxane 6.3 1.2 2.0 ug/L EPA 8260D Client ID: 4103-II7 Lab ID: CC06034-05 Anala Results Flag MDL POLL Units Method Notes 1,4-Dioxane 1.6 1 1.2 2.0 ug/L EPA 8260D Barium - Total 18.3 1.10 10.0 ug/L EPA 6010D Chromium - Total 2.55 1 1.40 10.0 ug/L EPA 6010D Copper - Total 1.75 1 1.60 10.0 ug/L EPA 6010D Client ID: 4303-Duplicate II Lab ID: CC06034-08 Anala Results Flag MDL POLL Units Method Notes 1,1-Dichloroethane 0.42 1 0.13 1.0 ug/L EPA 8260D 1,4-Dichlorobenzene 1.1 0.19 1.0 ug/L EPA 8260D Barium - Total 170 1.10 10.0 ug/L EPA 6010D Chlorobenzene 3.5 0.17 1.0 ug/L EPA 8260D Chromium - Total 2.83 1 1.40 10.0 ug/L EPA 6010D Nickel - Total 60.3 2.20 10.0 ug/L EPA 6010D Vanadium - Total 3.97 1 1.40 10.0 ug/L EPA 6010D FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 6 Of 68 (� �Eo www.encolabs.com SAMPLE DETECTION SUMMARY Client ID: 4303-Duplicate II Lab ID: CC06034-08RE1 Anala Results Flag MDL POLL Units Method Notes 1.4-Dioxane 78 D 6.0 10 ua/L EPA 8260D I Client ID: 4103-Trip Blank II Lab ID: CC06034-09 Anala Results Flag MDL POLL Units Method Notes Methylene chloride 0.52 1 0.23 1.0 ug/L EPA 8260D 0-01 Client ID: 4103-II7B Lab ID: CC06075-01 Anala Results Flag MDL POLL Units Method Notes IJ-Dichloroethane 0.99 1 0.13 1.0 ug/L EPA 8260D Barium - Total 28.4 1.10 10.0 ug/L EPA 6010D Copper - Total 2.69 1 1.60 10.0 ug/L EPA 6010D FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 7 Of 6H 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4103-MW14 Lab Sample ID:CC05276-01 Received: 04/09/19 11:42 Matrix: Ground Water Sampled:04/08/19 16:00 Work Order: CCO5276 Project: White Street LF-Phase II Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flao Units DF MDL Q Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 9DII024 EPA 8260D 04/12/19 04:42 MRK 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 9DII024 EPA 8260D 04/12/19 04:42 MRK 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 9DII024 EPA 8260D 04/12/19 04:42 MRK 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 9DII024 EPA 8260D 04/12/19 04:42 MRK 1,1-Dichloroethane [75-34-3]A 0.13 U ug/L 1 0.13 1.0 9DII024 EPA 8260D 04/12/19 04:42 MRK 1,1-Dichloroethene [75-35-4]A 0.21 U ug/L 1 0.21 1.0 9DII024 EPA 8260D 04/12/19 04:42 MRK 1,2,3-Trichloropropane [96-18-4]A 0.23 U ug/L 1 0.23 1.0 9DII024 EPA 8260D 04/12/19 04:42 MRK 1,2-Dibromo-3-chloropropane [96-12-8]A 0.48 U ug/L 1 0.48 1.0 9DII024 EPA 8260D 04/12/19 04:42 MRK 1,2-Dibromoethane [106-93-4]A 0.66 U ug/L 1 0.66 1.0 9DII024 EPA 8260D 04/12/19 04:42 MRK 1,2-Dichlorobenzene [95-50-1]A 0.19 U ug/L 1 0.19 1.0 9DII024 EPA 8260D 04/12/19 04:42 MRK 1,2-Dichloroethane [107-06-2]A 0.21 U ug/L 1 0.21 1.0 9DII024 EPA 8260D 04/12/19 04:42 MRK 1,2-Dichloropropane [78-87-5]A 0.10 U ug/L 1 0.10 1.0 9DII024 EPA 8260D 04/12/19 04:42 MRK 1,4-Dichlorobenzene [106-46-7]A 0.19 U ug/L 1 0.19 1.0 9DII024 EPA 8260D 04/12/19 04:42 MRK 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 9DII024 EPA 8260D 04/12/19 04:42 MRK 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 9DII024 EPA 8260D 04/12/19 04:42 MRK 4-Methyl-2-pentanone [108-10-1]A 1.1 U ug/L 1 1.1 5.0 9DII024 EPA 8260D 04/12/19 04:42 MRK Acetone [67-64-1]A 10 U ug/L 1 10 20 9DII024 EPA 8260D 04/12/19 04:42 MRK Acrylonitrile [107-13-1]A 3.5 U ug/L 1 3.5 10 9DII024 EPA 8260D 04/12/19 04:42 MRK Benzene[71-43-2]A 0.15 U ug/L 1 0.15 1.0 9DII024 EPA 8260D 04/12/19 04:42 MRK Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 9DII024 EPA 8260D 04/12/19 04:42 MRK Bromodichloromethane [75-27-4]A 0.17 U ug/L 1 0.17 1.0 9DII024 EPA 8260D 04/12/19 04:42 MRK Bromoform [75-25-2]A 0.22 U ug/L 1 0.22 1.0 9DII024 EPA 8260D 04/12/19 04:42 MRK Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 9DII024 EPA 8260D 04/12/19 04:42 MRK Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 9DII024 EPA 8260D 04/12/19 04:42 MRK Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 9DII024 EPA 8260D 04/12/19 04:42 MRK Chlorobenzene [108-90-7]A 0.17 U ug/L 1 0.17 1.0 9DII024 EPA 8260D 04/12/19 04:42 MRK Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 9DII024 EPA 8260D 04/12/19 04:42 MRK Chloroform [67-66-3]A 0.67 J ug/L 1 0.18 1.0 9D16020 EPA 8260D 04/16/19 23:24 MRK Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 9DII024 EPA 8260D 04/12/19 04:42 MRK cis-1,2-Dichloroethene [156-59-2]A 0.15 U ug/L 1 0.15 1.0 9DII024 EPA 8260D 04/12/19 04:42 MRK cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 9DII024 EPA 8260D 04/12/19 04:42 MRK Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 9DII024 EPA 8260D 04/12/19 04:42 MRK Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 9DII024 EPA 8260D 04/12/19 04:42 MRK Ethylbenzene [100-41-4]A 0.13 U ug/L 1 0.13 1.0 9DII024 EPA 8260D 04/12/19 04:42 MRK Iodomethane [74-88-4]A 1.7 U ug/L 1 1.7 5.0 9DII024 EPA 8260D 04/12/19 04:42 MRK Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 9DII024 EPA 8260D 04/12/19 04:42 MRK Styrene [100-42-5]A 0.11 U ug/L 1 0.11 1.0 9DII024 EPA 8260D 04/12/19 04:42 MRK Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 9DII024 EPA 8260D 04/12/19 04:42 MRK Tetrahydrofuran [109-99-9]A 0.53 U ug/L 1 0.53 1.0 9DII024 EPA 8260D 04/12/19 04:42 MRK Toluene [108-88-3]A 0.14 U ug/L 1 0.14 1.0 9DII024 EPA 8260D 04/12/19 04:42 MRK trans-1,2-Dichloroethene [156-60-5]A 0.21 U ug/L 1 0.21 1.0 9DII024 EPA 8260D 04/12/19 04:42 MRK trans-1,3-Dichloropropene [10061-02-6]A 0.15 U ug/L 1 0.15 1.0 9DII024 EPA 8260D 04/12/19 04:42 MRK trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 9DII024 EPA 8260D 04/12/19 04:42 MRK Trichloroethene [79-01-6]A 0.15 U ug/L 1 0.15 1.0 9DII024 EPA 8260D 04/12/19 04:42 MRK Trichlorofluoromethane [75-69-4]A 0.24 U ug/L 1 0.24 1.0 9DII024 EPA 8260D 04/12/19 04:42 MRK Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 9DII024 EPA 8260D 04/12/19 04:42 MRK Vinyl chloride [75-01-4]A 0.32 U ug/L 1 0.32 1.0 9DII024 EPA 8260D 04/12/19 04:42 MRK FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 8 Of 68 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-MW14 Lab Sample ID:CC05276-01 Received: 04/09/19 11:42 Matrix: Ground Water Sampled:04/08/19 16:00 Work Order: CC05276 Project: White Street LF-Phase II Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte MAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes Xylenes (Total) [1330-20-7]1 0.45 u ug/L 1 0.45 3.0 9D11024 EPA 8260D 04/12/19 04:42 MRK Surrogates Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes 4-Bromofluorobenzene 59 1 50.0 117 % 53-136 9DII024 EPA 8260D 04112119 04:42 MRK 4-Bromofluorobenzene 57 1 50.0 114 % 53-136 9D16020 EPA 8260D 04116119 23:24 MRK Dibromofluoromethane 49 1 50.0 98 % 67-129 9D11024 EPA 6260D 04112119 04:42 MRK Dibromofluoromethane 51 1 50.0 102 % 67-129 9D16020 EPA 6260D 04116119 23:24 MRK Toluene-& 55 1 50.0 110 % 59-134 9D11024 EPA 8260D 04112119 04:42 MRK Toluene-& 55 1 50.0 110 % 59-134 9D16020 EPA 8260D 04116119 23:24 MRK Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed By Notes Antimony [7440-36-0]^ 0.185 u ug/L 0.5 0.185 0.500 9D11009 EPA 6020B 04/15/19 14:59 CM K Arsenic[7440-38-2]^ 7.60 u ug/L 1 7.60 10.0 9D11021 EPA 6010D 04/16/19 12:50 JDH Barium [7440-39-3]^ 17.0 ug/L 1 1.10 10.0 91D11021 EPA 6010D 04/16/19 12:50 JDH Beryllium [7440-41-7]^ 0.160 u ug/L 1 0.160 1.00 9D11021 EPA 6010D 04/16/19 12:50 JDH Cadmium [7440-43-9]^ 0.360 u ug/L 1 0.360 1.00 9D11021 EPA 6010D 04/16/19 12:50 JDH Chromium [7440-47-3]^ 1.40 u ug/L 1 1.40 10.0 9D11021 EPA 6010D 04/16/19 12:50 JDH Cobalt[7440-48-4]^ 1.40 u ug/L 1 1.40 10.0 9D11021 EPA 6010D 04/16/19 12:50 JDH Copper[7440-50-8]^ 1.60 u ug/L 1 1.60 10.0 9D11021 EPA 6010D 04/16/19 12:50 JDH Lead [7439-92-1]^ 3.10 u ug/L 1 3.10 10.0 9D11021 EPA 6010D 04/16/19 12:50 JDH Nickel[7440-02-0]^ 2.20 u ug/L 1 2.20 10.0 9D11021 EPA 6010D 04/16/19 12:50 JDH Selenium [7782-49-2]^ 6.20 u ug/L 1 6.20 10.0 9D11021 EPA 6010D 04/16/19 12:50 JDH Silver[7440-22-4]^ 1.90 u ug/L 1 1.90 10.0 9D11021 EPA 6010D 04/16/19 12:50 JDH Thallium [7440-28-0]^ 0.0550 u ug/L 0.5 0.0550 0.500 9D11009 EPA 6020B 04/15/19 14:59 CM K Vanadium [7440-62-2]^ 1.40 u ug/L 1 1.40 10.0 9D11021 EPA 6010D 04/16/19 12:50 JDH Zinc[7440-66-6]^ 4.40 u ug/L 1 4.40 10.0 9D11021 EPA 6010D 04/16/19 12:50 JDH Volatile Organic Compounds by GCMS SIM Isotope Dilution Analyte rCAS Numberl 1,4-Dioxane [123-91-1] Surrogates Toluene-& Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes 1.2 u ug/L 1 1.2 2.0 9D11039 EPA 8260D 04/12/19 09:17 KKW Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4.6 1 5.00 91 % 75-125 9DII039 EPA 8260D 04112119 09:17 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 9 Of 68 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4103-II1 Lab Sample ID:CC05934-01 Received: 04/11/19 08:00 Matrix: Ground Water Sampled:04/10/19 10:10 Work Order: CCO5934 Project: White Street LF-Phase II Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flao Units DF MDL Q Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 9D17039 EPA 8260D 04/18/19 06:48 MRK 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 9D17039 EPA 8260D 04/18/19 06:48 MRK 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 9D17039 EPA 8260D 04/18/19 06:48 MRK 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 9D17039 EPA 8260D 04/18/19 06:48 MRK 1,1-Dichloroethane [75-34-3]A 0.13 U ug/L 1 0.13 1.0 9D17039 EPA 8260D 04/18/19 06:48 MRK 1,1-Dichloroethene [75-35-4]A 0.21 U ug/L 1 0.21 1.0 9D17039 EPA 8260D 04/18/19 06:48 MRK 1,2,3-Trichloropropane [96-18-4]A 0.23 U ug/L 1 0.23 1.0 9D17039 EPA 8260D 04/18/19 06:48 MRK 1,2-Dibromo-3-chloropropane [96-12-8]A 0.48 U ug/L 1 0.48 1.0 9D17039 EPA 8260D 04/18/19 06:48 MRK 1,2-Dibromoethane [106-93-4]A 0.66 U ug/L 1 0.66 1.0 9D17039 EPA 8260D 04/18/19 06:48 MRK 1,2-Dichlorobenzene [95-50-1]A 0.55 1 ug/L 1 0.19 1.0 9D17039 EPA 8260D 04/18/19 06:48 MRK 1,2-Dichloroethane [107-06-2]A 0.21 U ug/L 1 0.21 1.0 9D17039 EPA 8260D 04/18/19 06:48 MRK 1,2-Dichloropropane [78-87-5]A 0.10 U ug/L 1 0.10 1.0 9D17039 EPA 8260D 04/18/19 06:48 MRK 1,4-Dichlorobenzene [106-46-7]A 7.9 ug/L 1 0.19 1.0 9D17039 EPA 8260D 04/18/19 06:48 MRK 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 9D17039 EPA 8260D 04/18/19 06:48 MRK 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 9D17039 EPA 8260D 04/18/19 06:48 MRK 4-Methyl-2-pentanone [108-10-1]A 1.1 U ug/L 1 1.1 5.0 9D17039 EPA 8260D 04/18/19 06:48 MRK Acetone [67-64-1]A 10 U ug/L 1 10 20 9D17039 EPA 8260D 04/18/19 06:48 MRK Acrylonitrile [107-13-1]A 3.5 U ug/L 1 3.5 10 9D17039 EPA 8260D 04/18/19 06:48 MRK Benzene[71-43-2]A 0.15 U ug/L 1 0.15 1.0 9D17039 EPA 8260D 04/18/19 06:48 MRK Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 9D17039 EPA 8260D 04/18/19 06:48 MRK Bromodichloromethane [75-27-4]A 0.17 U ug/L 1 0.17 1.0 9D17039 EPA 8260D 04/18/19 06:48 MRK Bromoform [75-25-2]A 0.22 U ug/L 1 0.22 1.0 9D17039 EPA 8260D 04/18/19 06:48 MRK Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 9D17039 EPA 8260D 04/18/19 06:48 MRK Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 9D17039 EPA 8260D 04/18/19 06:48 MRK Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 9D17039 EPA 8260D 04/18/19 06:48 MRK Chlorobenzene [308-90-7]A 2.9 ug/L 1 0.17 1.0 9D17039 EPA 8260D 04/18/19 06:48 MRK Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 9D17039 EPA 8260D 04/18/19 06:48 MRK Chloroform [67-66-3]A 0.18 U ug/L 1 0.18 1.0 9D17039 EPA 8260D 04/18/19 06:48 MRK Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 9D17039 EPA 8260D 04/18/19 06:48 MRK cis-1,2-Dichloroethene [156-59-2]A 0.15 U ug/L 1 0.15 1.0 9D17039 EPA 8260D 04/18/19 06:48 MRK cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 9D17039 EPA 8260D 04/18/19 06:48 MRK Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 9D17039 EPA 8260D 04/18/19 06:48 MRK Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 9D17039 EPA 8260D 04/18/19 06:48 MRK Ethylbenzene [100-41-4]A 0.13 U ug/L 1 0.13 1.0 9D17039 EPA 8260D 04/18/19 06:48 MRK Iodomethane [74-88-4]A 1.7 U ug/L 1 1.7 5.0 9D17039 EPA 8260D 04/18/19 06:48 MRK Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 9D17039 EPA 8260D 04/18/19 06:48 MRK Styrene [100-42-5]A 0.11 U ug/L 1 0.11 1.0 9D17039 EPA 8260D 04/18/19 06:48 MRK Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 9D17039 EPA 8260D 04/18/19 06:48 MRK Tetrahydrofuran [109-99-9]A 4.9 ug/L 1 0.53 1.0 9D17039 EPA 8260D 04/18/19 06:48 MRK Toluene [108-88-3]A 0.14 U ug/L 1 0.14 1.0 9D17039 EPA 8260D 04/18/19 06:48 MRK trans-1,2-Dichloroethene [156-60-5]A 0.21 U ug/L 1 0.21 1.0 9D17039 EPA 8260D 04/18/19 06:48 MRK trans-1,3-Dichloropropene [10061-02-6]A 0.15 U ug/L 1 0.15 1.0 9D17039 EPA 8260D 04/18/19 06:48 MRK trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 9D17039 EPA 8260D 04/18/19 06:48 MRK Trichloroethene [79-01-6]A 0.15 U ug/L 1 0.15 1.0 9D17039 EPA 8260D 04/18/19 06:48 MRK Trichlorofluoromethane [75-69-4]A 0.24 U ug/L 1 0.24 1.0 9D17039 EPA 8260D 04/18/19 06:48 MRK Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 9D17039 EPA 8260D 04/18/19 06:48 MRK Vinyl chloride [75-01-4]A 0.32 U ug/L 1 0.32 1.0 9D17039 EPA 8260D 04/18/19 06:48 MRK FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 10 Of 68 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-IIl Lab Sample ID:CC05934-01 Received: 04/11/19 08:00 Matrix: Ground Water Sampled:04/10/19 10:10 Work Order: CC05934 Project: White Street LF-Phase II Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte fCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes Xylenes (Total) [1330-20-7]1 0.45 U ug/L 1 0.45 3.0 9D17039 EPA 8260D 04/18/19 06:48 MRK Surrogates Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes 4-Bromofluorobenzene 59 1 50.0 119 % 53-136 9D17039 EPA 8260D 04118119 06:48 MRK Dlbromofluoromethane 50 1 50.0 100 % 67-129 9D17039 EPA 8260D 04118119 06:48 MRK Toluene-d8 55 1 50.0 109 % 59-134 9D17039 EPA 8260D 04118119 06:48 MRK Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte fCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 9D16007 EPA 6020B 04/18/19 13:54 CMK Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 9D18043 EPA 6010D 04/22/19 11:16 JDH Barium [7440-39-3]^ 288 ug/L 1 1.10 10.0 91D18043 EPA 6010D 04/22/19 11:16 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 9D18043 EPA 6010D 04/22/19 11:16 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 9D18043 EPA 6010D 04/22/19 11:16 JDH Chromium [7440-47-3]^ 3.07 J ug/L 1 1.40 10.0 91D18043 EPA 6010D 04/22/19 11:16 JDH Cobalt[7440-48-4]^ 27.3 ug/L 1 1.40 10.0 91D18043 EPA 6010D 04/22/19 11:16 JDH Copper[7440-50-8]^ 4.04 J ug/L 1 1.60 10.0 91D18043 EPA 6010D 04/22/19 11:16 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 9D18043 EPA 6010D 04/22/19 11:16 JDH Nickel[7440-02-O]^ 25.4 ug/L 1 2.20 10.0 91D18043 EPA 6010D 04/22/19 11:16 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 9D18043 EPA 6010D 04/22/19 11:16 JDH QB-02 Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 9D18043 EPA 6010D 04/22/19 11:16 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 9D16007 EPA 6020B 04/18/19 13:54 CMK Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 9D18043 EPA 6010D 04/22/19 11:16 JDH Zinc[7440-66-6]^ 9.25 J ug/L 1 4.40 10.0 91D18043 EPA 6010D 04/22/19 11:16 JDH Volatile Organic Compounds by GCMS SIM Isotope Dilution Analyte fCAS Numberl 1,4-Dioxane [123-91-1] Surrogates Toluene-& Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes 120 D ug/L 5 6.0 10 91D12022 EPA 8260D 04/12/19 18:39 KKW Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 6.9 1 5.00 138 % 75-125 9D12022 EPA 8260D 04112119 1839 KKW QS-03 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 11 of 68 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4103-II5 Lab Sample ID:CC05934-02 Received: 04/11/19 08:00 Matrix: Ground Water Sampled:04/10/19 16:30 Work Order: CCO5934 Project: White Street LF-Phase II Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flao Units DF MDL Q Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]^ 0.17 U ug/L 1 0.17 1.0 9D17039 EPA 8260D 04/18/19 07:18 MRK 1,1,1-Trichloroethane [71-55-6]^ 0.12 U ug/L 1 0.12 1.0 9D17039 EPA 8260D 04/18/19 07:18 MRK 1,1,2,2-Tetrachloroethane [79-34-5]^ 0.28 U ug/L 1 0.28 1.0 9D17039 EPA 8260D 04/18/19 07:18 MRK 1,1,2-Trichloroethane [79-00-5]^ 0.14 U ug/L 1 0.14 1.0 9D17039 EPA 8260D 04/18/19 07:18 MRK 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 9D17039 EPA 8260D 04/18/19 07:18 MRK 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 9D17039 EPA 8260D 04/18/19 07:18 MRK 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 9D17039 EPA 8260D 04/18/19 07:18 MRK 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 9D17039 EPA 8260D 04/18/19 07:18 MRK 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 9D17039 EPA 8260D 04/18/19 07:18 MRK 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 9D17039 EPA 8260D 04/18/19 07:18 MRK 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 9D17039 EPA 8260D 04/18/19 07:18 MRK 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 9D17039 EPA 8260D 04/18/19 07:18 MRK 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 9D17039 EPA 8260D 04/18/19 07:18 MRK 2-Butanone [78-93-3]^ 1.3 U ug/L 1 1.3 5.0 9D17039 EPA 8260D 04/18/19 07:18 MRK 2-Hexanone [591-78-6]^ 0.88 U ug/L 1 0.88 5.0 9D17039 EPA 8260D 04/18/19 07:18 MRK 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 9D17039 EPA 8260D 04/18/19 07:18 MRK Acetone [67-64-1]^ 10 U ug/L 1 10 20 9D17039 EPA 8260D 04/18/19 07:18 MRK Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 9D17039 EPA 8260D 04/18/19 07:18 MRK Benzene [71-43-2]^ 0.15 U ug/L 1 0.15 1.0 9D17039 EPA 8260D 04/18/19 07:18 MRK Bromochloromethane [74-97-5]^ 0.48 U ug/L 1 0.48 1.0 9D17039 EPA 8260D 04/18/19 07:18 MRK Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 9D17039 EPA 8260D 04/18/19 07:18 MRK Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 9D17039 EPA 8260D 04/18/19 07:18 MRK Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 9D17039 EPA 8260D 04/18/19 07:18 MRK Carbon disulfide [75-15-0]^ 1.5 U ug/L 1 1.5 5.0 9D17039 EPA 8260D 04/18/19 07:18 MRK Carbon tetrachloride [56-23-5]^ 0.17 U ug/L 1 0.17 1.0 9D17039 EPA 8260D 04/18/19 07:18 MRK Chlorobenzene [108-90-7]^ 0.17 U ug/L 1 0.17 1.0 9D17039 EPA 8260D 04/18/19 07:18 MRK Chloroethane [75-00-3]^ 0.23 U ug/L 1 0.23 1.0 9D17039 EPA 8260D 04/18/19 07:18 MRK Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 9D17039 EPA 8260D 04/18/19 07:18 MRK Chloromethane [74-87-3]^ 0.13 U ug/L 1 0.13 1.0 9D17039 EPA 8260D 04/18/19 07:18 MRK cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 9D17039 EPA 8260D 04/18/19 07:18 MRK cis-1,3-Dichloropropene [10061-01-5]^ 0.20 U ug/L 1 0.20 1.0 9D17039 EPA 8260D 04/18/19 07:18 MRK Dibromochloromethane [124-48-1]^ 0.17 U ug/L 1 0.17 1.0 9D17039 EPA 8260D 04/18/19 07:18 MRK Dibromomethane [74-95-3]^ 0.27 U ug/L 1 0.27 1.0 9D17039 EPA 8260D 04/18/19 07:18 MRK Ethylbenzene [100-41-4]^ 0.13 U ug/L 1 0.13 1.0 9D17039 EPA 8260D 04/18/19 07:18 MRK Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 9D17039 EPA 8260D 04/18/19 07:18 MRK Methylene chloride [75-09-2]^ 0.23 U ug/L 1 0.23 1.0 9D17039 EPA 8260D 04/18/19 07:18 MRK Styrene [100-42-5]^ 0.11 U ug/L 1 0.11 1.0 9D17039 EPA 8260D 04/18/19 07:18 MRK Tetrachloroethene [127-18-4]^ 0.17 U ug/L 1 0.17 1.0 9D17039 EPA 8260D 04/18/19 07:18 MRK Tetrahydrofuran [109-99-9]^ 0.53 U ug/L 1 0.53 1.0 9D17039 EPA 8260D 04/18/19 07:18 MRK Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 9D17039 EPA 8260D 04/18/19 07:18 MRK trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 9D17039 EPA 8260D 04/18/19 07:18 MRK trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 9D17039 EPA 8260D 04/18/19 07:18 MRK trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 U ug/L 1 0.70 1.0 9D17039 EPA 8260D 04/18/19 07:18 MRK Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 9D17039 EPA 8260D 04/18/19 07:18 MRK Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 9D17039 EPA 8260D 04/18/19 07:18 MRK Vinyl acetate [108-05-4]^ 0.95 U ug/L 1 0.95 5.0 9D17039 EPA 8260D 04/18/19 07:18 MRK Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 9D17039 EPA 8260D 04/18/19 07:18 MRK FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 12 Of 68 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-II5 Lab Sample ID:CC05934-02 Received: 04/11/19 08:00 Matrix: Ground Water Sampled:04/10/19 16:30 Work Order: CC05934 Project: White Street LF-Phase II Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte fCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes Xylenes (Total) [1330-20-7]1 0.45 U ug/L 1 0.45 3.0 9D17039 EPA 8260D 04/18/19 07:18 MRK Surrogates Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes 4-Bromofluorobenzene 58 1 50.0 117 % 53-136 9D17039 EPA 8260D 04118119 07:18 MRK Dlbromofluoromethane 51 1 50.0 101 % 67-129 9D17039 EPA 8260D 04118119 07:18 MRK Toluene-d8 54 1 50.0 109 % 59-134 9D17039 EPA 8260D 04118119 07:18 MRK Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte fCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 9D16007 EPA 6020B 04/18/19 13:58 CM K Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 9D18043 EPA 6010D 04/22/19 11:19 JDH Barium [7440-39-3]^ 101 ug/L 1 1.10 10.0 91D18043 EPA 6010D 04/22/19 11:19 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 9D18043 EPA 6010D 04/22/19 11:19 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 9D18043 EPA 6010D 04/22/19 11:19 JDH Chromium [7440-47-3]^ 3.17 J ug/L 1 1.40 10.0 91D18043 EPA 6010D 04/22/19 11:19 JDH Cobalt[7440-48-4]^ 3.65 J ug/L 1 1.40 10.0 91D18043 EPA 6010D 04/22/19 11:19 JDH Copper[7440-50-8]^ 2.49 J ug/L 1 1.60 10.0 91D18043 EPA 6010D 04/22/19 11:19 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 9D18043 EPA 6010D 04/22/19 11:19 JDH Nickel[7440-02-O]^ 4.40 J ug/L 1 2.20 10.0 91D18043 EPA 6010D 04/22/19 11:19 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 9D18043 EPA 6010D 04/22/19 11:19 JDH QB-02 Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 9D18043 EPA 6010D 04/22/19 11:19 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 9D16007 EPA 6020B 04/18/19 13:58 CM K Vanadium [7440-62-2]^ 4.30 J ug/L 1 1.40 10.0 91D18043 EPA 6010D 04/22/19 11:19 JDH Zinc[7440-66-6]^ 16.5 ug/L 1 4.40 10.0 91D18043 EPA 6010D 04/22/19 11:19 JDH Volatile Organic Compounds by GCMS SIM Isotope Dilution Analyte fCAS Numberl 1,4-Dioxane [123-91-1] Surrogates Toluene-& Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes 2.4 ug/L 1 1.2 2.0 9D12022 EPA 8260D 04/12/19 19:16 KKW Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 5.4 1 5.00 108 % 75-125 9D12022 EPA 8260D 04112119 19:16 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 13 of 68 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4103-II8 Lab Sample ID:CC05934-03 Received: 04/11/19 08:00 Matrix: Ground Water Sampled:04/10/19 11:39 Work Order: CCO5934 Project: White Street LF-Phase II Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flao Units DF MDL Q Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 9D17039 EPA 8260D 04/18/19 07:48 MRK 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 9D17039 EPA 8260D 04/18/19 07:48 MRK 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 9D17039 EPA 8260D 04/18/19 07:48 MRK 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 9D17039 EPA 8260D 04/18/19 07:48 MRK 1,1-Dichloroethane [75-34-3]A 0.13 U ug/L 1 0.13 1.0 9D17039 EPA 8260D 04/18/19 07:48 MRK 1,1-Dichloroethene [75-35-4]A 0.21 U ug/L 1 0.21 1.0 9D17039 EPA 8260D 04/18/19 07:48 MRK 1,2,3-Trichloropropane [96-18-4]A 0.23 U ug/L 1 0.23 1.0 9D17039 EPA 8260D 04/18/19 07:48 MRK 1,2-Dibromo-3-chloropropane [96-12-8]A 0.48 U ug/L 1 0.48 1.0 9D17039 EPA 8260D 04/18/19 07:48 MRK 1,2-Dibromoethane [106-93-4]A 0.66 U ug/L 1 0.66 1.0 9D17039 EPA 8260D 04/18/19 07:48 MRK 1,2-Dichlorobenzene [95-50-1]A 0.19 U ug/L 1 0.19 1.0 9D17039 EPA 8260D 04/18/19 07:48 MRK 1,2-Dichloroethane [107-06-2]A 0.21 U ug/L 1 0.21 1.0 9D17039 EPA 8260D 04/18/19 07:48 MRK 1,2-Dichloropropane [78-87-5]A 0.10 U ug/L 1 0.10 1.0 9D17039 EPA 8260D 04/18/19 07:48 MRK 1,4-Dichlorobenzene [106-46-7]A 0.19 U ug/L 1 0.19 1.0 9D17039 EPA 8260D 04/18/19 07:48 MRK 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 9D17039 EPA 8260D 04/18/19 07:48 MRK 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 9D17039 EPA 8260D 04/18/19 07:48 MRK 4-Methyl-2-pentanone [108-10-1]A 1.1 U ug/L 1 1.1 5.0 9D17039 EPA 8260D 04/18/19 07:48 MRK Acetone [67-64-1]A 10 U ug/L 1 10 20 9D17039 EPA 8260D 04/18/19 07:48 MRK Acrylonitrile [107-13-1]A 3.5 U ug/L 1 3.5 10 9D17039 EPA 8260D 04/18/19 07:48 MRK Benzene[71-43-2]A 0.15 U ug/L 1 0.15 1.0 9D17039 EPA 8260D 04/18/19 07:48 MRK Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 9D17039 EPA 8260D 04/18/19 07:48 MRK Bromodichloromethane [75-27-4]A 0.17 U ug/L 1 0.17 1.0 9D17039 EPA 8260D 04/18/19 07:48 MRK Bromoform [75-25-2]A 0.22 U ug/L 1 0.22 1.0 9D17039 EPA 8260D 04/18/19 07:48 MRK Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 9D17039 EPA 8260D 04/18/19 07:48 MRK Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 9D17039 EPA 8260D 04/18/19 07:48 MRK Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 9D17039 EPA 8260D 04/18/19 07:48 MRK Chlorobenzene [108-90-7]A 1.9 ug/L 1 0.17 1.0 9D17039 EPA 8260D 04/18/19 07:48 MRK Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 9D17039 EPA 8260D 04/18/19 07:48 MRK Chloroform [67-66-3]A 0.18 U ug/L 1 0.18 1.0 9D17039 EPA 8260D 04/18/19 07:48 MRK Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 9D17039 EPA 8260D 04/18/19 07:48 MRK cis-1,2-Dichloroethene [156-59-2]A 0.15 U ug/L 1 0.15 1.0 9D17039 EPA 8260D 04/18/19 07:48 MRK cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 9D17039 EPA 8260D 04/18/19 07:48 MRK Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 9D17039 EPA 8260D 04/18/19 07:48 MRK Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 9D17039 EPA 8260D 04/18/19 07:48 MRK Ethylbenzene [100-41-4]A 0.13 U ug/L 1 0.13 1.0 9D17039 EPA 8260D 04/18/19 07:48 MRK Iodomethane [74-88-4]A 1.7 U ug/L 1 1.7 5.0 9D17039 EPA 8260D 04/18/19 07:48 MRK Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 9D17039 EPA 8260D 04/18/19 07:48 MRK Styrene [100-42-5]A 0.11 U ug/L 1 0.11 1.0 9D17039 EPA 8260D 04/18/19 07:48 MRK Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 9D17039 EPA 8260D 04/18/19 07:48 MRK Tetrahydrofuran [109-99-9]A 11 ug/L 1 0.53 1.0 9D17039 EPA 8260D 04/18/19 07:48 MRK Toluene [108-88-3]A 0.14 U ug/L 1 0.14 1.0 9D17039 EPA 8260D 04/18/19 07:48 MRK trans-1,2-Dichloroethene [156-60-5]A 0.21 U ug/L 1 0.21 1.0 9D17039 EPA 8260D 04/18/19 07:48 MRK trans-1,3-Dichloropropene [10061-02-6]A 0.15 U ug/L 1 0.15 1.0 9D17039 EPA 8260D 04/18/19 07:48 MRK trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 9D17039 EPA 8260D 04/18/19 07:48 MRK Trichloroethene [79-01-6]A 0.15 U ug/L 1 0.15 1.0 9D17039 EPA 8260D 04/18/19 07:48 MRK Trichlorofluoromethane [75-69-4]A 0.24 U ug/L 1 0.24 1.0 9D17039 EPA 8260D 04/18/19 07:48 MRK Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 9D17039 EPA 8260D 04/18/19 07:48 MRK Vinyl chloride [75-01-4]A 0.32 U ug/L 1 0.32 1.0 9D17039 EPA 8260D 04/18/19 07:48 MRK FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 14 Of 68 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-II8 Lab Sample ID:CC05934-03 Received: 04/11/19 08:00 Matrix: Ground Water Sampled:04/10/19 11:39 Work Order: CC05934 Project: White Street LF-Phase II Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte fCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes Xylenes (Total) [1330-20-7]1 0.45 U ug/L 1 0.45 3.0 9D17039 EPA 8260D 04/18/19 07:48 MRK Surrogates Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes 4-Bromofluorobenzene 58 1 50.0 115 % 53-136 9D17039 EPA 8260D 04118119 07:48 MRK Dlbromofluoromethane 50 1 50.0 100 % 67-129 9D17039 EPA 8260D 04118119 07:48 MRK Toluene-d8 54 1 50.0 108 % 59-134 9D17039 EPA 8260D 04118119 07:48 MRK Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte fCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 9D16007 EPA 6020B 04/18/19 14:02 CM K Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 9D19002 EPA 6010D 04/22/19 12:56 JDH Barium [7440-39-3]^ 180 ug/L 1 1.10 10.0 91D19002 EPA 6010D 04/22/19 12:56 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 9D19002 EPA 6010D 04/22/19 12:56 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 9D19002 EPA 6010D 04/22/19 12:56 JDH Chromium [7440-47-3]^ 3.71 J ug/L 1 1.40 10.0 91D19002 EPA 6010D 04/22/19 12:56 JDH Cobalt[7440-48-4]^ 6.20 J ug/L 1 1.40 10.0 91D19002 EPA 6010D 04/22/19 12:56 JDH Copper[7440-50-8]^ 12.2 ug/L 1 1.60 10.0 91D19002 EPA 6010D 04/22/19 12:56 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 9D19002 EPA 6010D 04/22/19 12:56 JDH Nickel[7440-02-O]^ 96.2 ug/L 1 2.20 10.0 91D19002 EPA 6010D 04/22/19 12:56 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 9D19002 EPA 6010D 04/22/19 12:56 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 9D19002 EPA 6010D 04/22/19 12:56 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 9D16007 EPA 6020B 04/18/19 14:02 CM K Vanadium [7440-62-2]^ 3.21 J ug/L 1 1.40 10.0 91D19002 EPA 6010D 04/22/19 12:56 JDH Zinc[7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 9D19002 EPA 6010D 04/22/19 12:56 JDH Volatile Organic Compounds by GCMS SIM Isotope Dilution Analyte fCAS Numberl 1,4-Dioxane [123-91-1] Surrogates Toluene-& Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes 290 D ug/L 10 12 20 9D12022 EPA 8260D 04/12/19 19:51 KKW Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 5.4 1 5.00 109 % 75-125 9D12022 EPA 8260D 04112119 19:51 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 15 of 68 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4103-II12 Lab Sample ID:CC05934-04 Received: 04/11/19 08:00 Matrix: Ground Water Sampled:04/10/19 14:46 Work Order: CCO5934 Project: White Street LF-Phase II Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flao Units DF MDL Q Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 9D17039 EPA 8260D 04/18/19 08:18 MRK 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 9D17039 EPA 8260D 04/18/19 08:18 MRK 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 9D17039 EPA 8260D 04/18/19 08:18 MRK 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 9D17039 EPA 8260D 04/18/19 08:18 MRK 1,1-Dichloroethane [75-34-3]A 0.13 U ug/L 1 0.13 1.0 9D17039 EPA 8260D 04/18/19 08:18 MRK 1,1-Dichloroethene [75-35-4]A 0.21 U ug/L 1 0.21 1.0 9D17039 EPA 8260D 04/18/19 08:18 MRK 1,2,3-Trichloropropane [96-18-4]A 0.23 U ug/L 1 0.23 1.0 9D17039 EPA 8260D 04/18/19 08:18 MRK 1,2-Dibromo-3-chloropropane [96-12-8]A 0.48 U ug/L 1 0.48 1.0 9D17039 EPA 8260D 04/18/19 08:18 MRK 1,2-Dibromoethane [106-93-4]A 0.66 U ug/L 1 0.66 1.0 9D17039 EPA 8260D 04/18/19 08:18 MRK 1,2-Dichlorobenzene [95-50-1]A 0.19 U ug/L 1 0.19 1.0 9D17039 EPA 8260D 04/18/19 08:18 MRK 1,2-Dichloroethane [107-06-2]A 0.21 U ug/L 1 0.21 1.0 9D17039 EPA 8260D 04/18/19 08:18 MRK 1,2-Dichloropropane [78-87-5]A 0.10 U ug/L 1 0.10 1.0 9D17039 EPA 8260D 04/18/19 08:18 MRK 1,4-Dichlorobenzene [106-46-7]A 0.19 U ug/L 1 0.19 1.0 9D17039 EPA 8260D 04/18/19 08:18 MRK 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 9D17039 EPA 8260D 04/18/19 08:18 MRK 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 9D17039 EPA 8260D 04/18/19 08:18 MRK 4-Methyl-2-pentanone [108-10-1]A 1.1 U ug/L 1 1.1 5.0 9D17039 EPA 8260D 04/18/19 08:18 MRK Acetone [67-64-1]A 10 U ug/L 1 10 20 9D17039 EPA 8260D 04/18/19 08:18 MRK Acrylonitrile [107-13-1]A 3.5 U ug/L 1 3.5 10 9D17039 EPA 8260D 04/18/19 08:18 MRK Benzene [71-43-2]A 0.15 U ug/L 1 0.15 1.0 9D17039 EPA 8260D 04/18/19 08:18 MRK Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 9D17039 EPA 8260D 04/18/19 08:18 MRK Bromodichloromethane [75-27-4]A 0.17 U ug/L 1 0.17 1.0 9D17039 EPA 8260D 04/18/19 08:18 MRK Bromoform [75-25-2]A 0.22 U ug/L 1 0.22 1.0 9D17039 EPA 8260D 04/18/19 08:18 MRK Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 9D17039 EPA 8260D 04/18/19 08:18 MRK Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 9D17039 EPA 8260D 04/18/19 08:18 MRK Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 9D17039 EPA 8260D 04/18/19 08:18 MRK Chlorobenzene [108-90-7]A 0.17 U ug/L 1 0.17 1.0 9D17039 EPA 8260D 04/18/19 08:18 MRK Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 9D17039 EPA 8260D 04/18/19 08:18 MRK Chloroform [67-66-3]A 0.18 U ug/L 1 0.18 1.0 9D17039 EPA 8260D 04/18/19 08:18 MRK Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 9D17039 EPA 8260D 04/18/19 08:18 MRK cis-1,2-Dichloroethene [156-59-2]A 0.15 U ug/L 1 0.15 1.0 9D17039 EPA 8260D 04/18/19 08:18 MRK cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 9D17039 EPA 8260D 04/18/19 08:18 MRK Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 9D17039 EPA 8260D 04/18/19 08:18 MRK Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 9D17039 EPA 8260D 04/18/19 08:18 MRK Ethylbenzene [100-41-4]A 0.13 U ug/L 1 0.13 1.0 9D17039 EPA 8260D 04/18/19 08:18 MRK Iodomethane [74-88-4]A 1.7 U ug/L 1 1.7 5.0 9D17039 EPA 8260D 04/18/19 08:18 MRK Methylene chloride [75-09-2]A 0.46 J ug/L 1 0.23 1.0 9D17039 EPA 8260D 04/18/19 08:18 MRK Styrene [100-42-5]A 0.11 U ug/L 1 0.11 1.0 9D17039 EPA 8260D 04/18/19 08:18 MRK Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 9D17039 EPA 8260D 04/18/19 08:18 MRK Tetrahydrofuran [109-99-9]A 0.53 U ug/L 1 0.53 1.0 9D17039 EPA 8260D 04/18/19 08:18 MRK Toluene [108-88-3]A 0.14 U ug/L 1 0.14 1.0 9D17039 EPA 8260D 04/18/19 08:18 MRK trans-1,2-Dichloroethene [156-60-5]A 0.21 U ug/L 1 0.21 1.0 9D17039 EPA 8260D 04/18/19 08:18 MRK trans-1,3-Dichloropropene [10061-02-6]A 0.15 U ug/L 1 0.15 1.0 9D17039 EPA 8260D 04/18/19 08:18 MRK trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 9D17039 EPA 8260D 04/18/19 08:18 MRK Trichloroethene [79-01-6]A 0.15 U ug/L 1 0.15 1.0 9D17039 EPA 8260D 04/18/19 08:18 MRK Trichlorofluoromethane [75-69-4]A 0.24 U ug/L 1 0.24 1.0 9D17039 EPA 8260D 04/18/19 08:18 MRK Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 9D17039 EPA 8260D 04/18/19 08:18 MRK Vinyl chloride [75-01-4]A 0.32 U ug/L 1 0.32 1.0 9D17039 EPA 8260D 04/18/19 08:18 MRK FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 16 Of 68 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-II12 Lab Sample ID:CC05934-04 Received: 04/11/19 08:00 Matrix: Ground Water Sampled:04/10/19 14:46 Work Order: CC05934 Project: White Street LF-Phase II Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes Xylenes (Total) [1330-20-7]1 0.45 U ug/L 1 0.45 3.0 9D17039 EPA 8260D 04/18/19 08:18 MRK Surrogates Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes 4-Bromofluorobenzene 57 1 50.0 114 % 53-136 9D17039 EPA 8260D 04118119 06:18 MRK Dlbromofluoromethane 51 1 50.0 102 % 67-129 9D17039 EPA 8260D 04118119 06:18 MRK Toluene-d8 55 1 50.0 110 % 59-134 9D17039 EPA 8260D 04118119 08:18 MRK Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 9D16007 EPA 6020B 04/18/19 14:15 CM K Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 9D19002 EPA 6010D 04/22/19 12:09 JDH Barium [7440-39-3]^ 104 ug/L 1 1.10 10.0 91D19002 EPA 6010D 04/22/19 12:09 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 9D19002 EPA 6010D 04/22/19 12:09 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 9D19002 EPA 6010D 04/22/19 12:09 JDH Chromium [7440-47-3]^ 1.87 J ug/L 1 1.40 10.0 91D19002 EPA 6010D 04/22/19 12:09 JDH Cobalt[7440-48-4]^ 3.19 J ug/L 1 1.40 10.0 91D19002 EPA 6010D 04/22/19 12:09 JDH Copper[7440-50-8]^ 4.16 J ug/L 1 1.60 10.0 91D19002 EPA 6010D 04/22/19 12:09 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 9D19002 EPA 6010D 04/22/19 12:09 JDH Nickel[7440-02-O]^ 5.40 J ug/L 1 2.20 10.0 91D19002 EPA 6010D 04/22/19 12:09 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 9D19002 EPA 6010D 04/22/19 12:09 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 9D19002 EPA 6010D 04/22/19 12:09 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 9D16007 EPA 6020B 04/18/19 14:15 CM K Vanadium [7440-62-2]^ 5.77 J ug/L 1 1.40 10.0 91D19002 EPA 6010D 04/22/19 12:09 JDH Zinc[7440-66-6]^ 4.53 J ug/L 1 4.40 10.0 91D19002 EPA 6010D 04/22/19 12:09 JDH Volatile Organic Compounds by GCMS SIM Isotope Dilution Analyte rCAS Numberl 1,4-Dioxane [123-91-1] Surrogates Toluene-& Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes 1.2 U ug/L 1 1.2 2.0 9D12022 EPA 8260D 04/12/19 20:26 KKW Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 5.3 1 5.00 106 % 75-125 9D12022 EPA 8260D 04112119 20:26 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 17 of 68 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4103-II2 Lab Sample ID:CC06034-01 Received: 04/12/19 10:30 Matrix: Ground Water Sampled:04/11/19 17:41 Work Order: CC06034 Project: White Street LF-Phase II Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flao Units DF MDL Q Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 9D16037 EPA 8260D 04/18/19 10:17 MRK 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 9D16037 EPA 8260D 04/18/19 10:17 MRK 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 9D16037 EPA 8260D 04/18/19 10:17 MRK 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 9D16037 EPA 8260D 04/18/19 10:17 MRK 1,1-Dichloroethane [75-34-3]A 4.8 ug/L 1 0.13 1.0 9D16037 EPA 8260D 04/18/19 10:17 MRK 1,1-Dichloroethene [75-35-4]A 0.21 u ug/L 1 0.21 1.0 9D16037 EPA 8260D 04/18/19 10:17 MRK 1,2,3-Trichloropropane [96-18-4]A 0.23 u ug/L 1 0.23 1.0 9D16037 EPA 8260D 04/18/19 10:17 MRK 1,2-Dibromo-3-chloropropane [96-12-8]A 0.48 u ug/L 1 0.48 1.0 9D16037 EPA 8260D 04/18/19 10:17 MRK 1,2-Dibromoethane [106-93-4]A 0.66 u ug/L 1 0.66 1.0 9D16037 EPA 8260D 04/18/19 10:17 MRK 1,2-Dichlorobenzene [95-50-1]A 0.19 u ug/L 1 0.19 1.0 9D16037 EPA 8260D 04/18/19 10:17 MRK 1,2-Dichloroethane [107-06-2]A 0.21 u ug/L 1 0.21 1.0 9D16037 EPA 8260D 04/18/19 10:17 MRK 1,2-Dichloropropane [78-87-5]A 0.10 u ug/L 1 0.10 1.0 9D16037 EPA 8260D 04/18/19 10:17 MRK 1,4-Dichlorobenzene [106-46-7]A 3.3 ug/L 1 0.19 1.0 9D16037 EPA 8260D 04/18/19 10:17 MRK 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 9D16037 EPA 8260D 04/18/19 10:17 MRK 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 9D16037 EPA 8260D 04/18/19 10:17 MRK 4-Methyl-2-pentanone [108-10-1]A 1.1 u ug/L 1 1.1 5.0 9D16037 EPA 8260D 04/18/19 10:17 MRK Acetone [67-64-1]A 10 u ug/L 1 10 20 9D16037 EPA 8260D 04/18/19 10:17 MRK Acrylonitrile [107-13-1]A 3.5 u ug/L 1 3.5 10 9D16037 EPA 8260D 04/18/19 10:17 MRK Benzene [71-43-2]A 0.15 u ug/L 1 0.15 1.0 9D16037 EPA 8260D 04/18/19 10:17 MRK Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 9D16037 EPA 8260D 04/18/19 10:17 MRK Bromodichloromethane [75-27-4]A 0.17 u ug/L 1 0.17 1.0 9D16037 EPA 8260D 04/18/19 10:17 MRK Bromoform [75-25-2]A 0.22 u ug/L 1 0.22 1.0 9D16037 EPA 8260D 04/18/19 10:17 MRK Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 9D16037 EPA 8260D 04/18/19 10:17 MRK Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 9D16037 EPA 8260D 04/18/19 10:17 MRK Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 9D16037 EPA 8260D 04/18/19 10:17 MRK Chlorobenzene [308-90-7]A 0.87 J ug/L 1 0.17 1.0 9D16037 EPA 8260D 04/18/19 10:17 MRK Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 9D16037 EPA 8260D 04/18/19 10:17 MRK Chloroform [67-66-3]A 0.18 u ug/L 1 0.18 1.0 9D16037 EPA 8260D 04/18/19 10:17 MRK Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 9D16037 EPA 8260D 04/18/19 10:17 MRK cis-1,2-Dichloroethene [156-59-2]A 12 ug/L 1 0.15 1.0 9D16037 EPA 8260D 04/18/19 10:17 MRK cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 9D16037 EPA 8260D 04/18/19 10:17 MRK Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 9D16037 EPA 8260D 04/18/19 10:17 MRK Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 9D16037 EPA 8260D 04/18/19 10:17 MRK Ethylbenzene [100-41-4]A 0.13 u ug/L 1 0.13 1.0 9D16037 EPA 8260D 04/18/19 10:17 MRK Iodomethane [74-88-4]A 1.7 u ug/L 1 1.7 5.0 9D16037 EPA 8260D 04/18/19 10:17 MRK Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 9D16037 EPA 8260D 04/18/19 10:17 MRK Styrene [100-42-5]A 0.11 u ug/L 1 0.11 1.0 9D16037 EPA 8260D 04/18/19 10:17 MRK Tetrachloroethene [127-18-4]A 0.42 J ug/L 1 0.17 1.0 9D16037 EPA 8260D 04/18/19 10:17 MRK Tetrahydrofuran [109-99-9]A 0.53 u ug/L 1 0.53 1.0 9D22022 EPA 8260D 04/22/19 21:07 MRK Toluene [108-88-3]A 0.14 u ug/L 1 0.14 1.0 9D16037 EPA 8260D 04/18/19 10:17 MRK trans-1,2-Dichloroethene [156-60-5]A 0.21 u ug/L 1 0.21 1.0 9D16037 EPA 8260D 04/18/19 10:17 MRK trans-1,3-Dichloropropene [10061-02-6]A 0.15 u ug/L 1 0.15 1.0 9D16037 EPA 8260D 04/18/19 10:17 MRK trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 9D16037 EPA 8260D 04/18/19 10:17 MRK Trichloroethene [79-01-6]A 1.2 ug/L 1 0.15 1.0 9D16037 EPA 8260D 04/18/19 10:17 MRK Trichlorofluoromethane [75-69-4]A 0.24 u ug/L 1 0.24 1.0 9D16037 EPA 8260D 04/18/19 10:17 MRK Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 9D16037 EPA 8260D 04/18/19 10:17 MRK Vinyl chloride [75-01-4]A 1.4 ug/L 1 0.32 1.0 9D16037 EPA 8260D 04/18/19 10:17 MRK FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 18 Of 68 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-II2 Lab Sample ID:CC06034-01 Received: 04/12/19 10:30 Matrix: Ground Water Sampled:04/11/19 17:41 Work Order: CC06034 Project: White Street LF-Phase II Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte MAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes Xylenes (Total) [1330-20-7]1 0.45 U ug/L 1 0.45 3.0 9D16037 EPA 8260D 04/18/19 10:17 MRK Surrogates Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes 4-Bromofluorobenzene 58 1 50.0 116 % 53-136 9D16037 EPA 8260D 04118119 10:17 MRK Dlbromofluoromethane 46 1 50.0 93 % 67-129 9D16037 EPA 6260D 04118119 10:17 MRK Toluene-d8 54 1 50.0 108 % 59-134 9D16037 EPA 8260D 04118119 10:17 MRK Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte fCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 9D18011 EPA 6020B 04/22/19 12:53 CMK Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 9D20013 EPA 6010D 04/23/19 13:15 JDH Barium [7440-39-3]^ 57.7 ug/L 1 1.10 10.0 9D20013 EPA 6010D 04/23/19 13:15 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 9D20013 EPA 6010D 04/23/19 13:15 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 9D20013 EPA 6010D 04/23/19 13:15 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 9D20013 EPA 6010D 04/23/19 13:15 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 9D20013 EPA 6010D 04/23/19 13:15 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 9D20013 EPA 6010D 04/23/19 13:15 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 9D20013 EPA 6010D 04/23/19 13:15 JDH Nickel[7440-02-0]^ 2.20 U ug/L 1 2.20 10.0 9D20013 EPA 6010D 04/23/19 13:15 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 9D20013 EPA 6010D 04/23/19 13:15 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 9D20013 EPA 6010D 04/23/19 13:15 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 9D18011 EPA 6020B 04/22/19 12:53 CMK Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 9D20013 EPA 6010D 04/23/19 13:15 JDH Zinc[7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 9D20013 EPA 6010D 04/23/19 13:15 JDH Volatile Organic Compounds by GCMS SIM Isotope Dilution Analyte fCAS Numberl 1,4-Dioxane [123-91-1] Surrogates Toluene-& Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes 2.6 ug/L 1 1.2 2.0 91D18049 EPA 8260D 04/18/19 16:08 KKW Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 5.6 1 5.00 117 % 75-125 9D18049 EPA 8260D 04118119 16:08 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 19 of 68 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4103-II3 Lab Sample ID:CC06034-02 Received: 04/12/19 10:30 Matrix: Ground Water Sampled:04/11/19 11:39 Work Order: CC06034 Project: White Street LF-Phase II Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flao Units DF MDL Q Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 9D16037 EPA 8260D 04/18/19 10:49 MRK 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 9D16037 EPA 8260D 04/18/19 10:49 MRK 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 9D16037 EPA 8260D 04/18/19 10:49 MRK 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 9D16037 EPA 8260D 04/18/19 10:49 MRK 1,1-Dichloroethane [75-34-3]A 4.4 ug/L 1 0.13 1.0 9D16037 EPA 8260D 04/18/19 10:49 MRK 1,1-Dichloroethene [75-35-4]A 0.21 U ug/L 1 0.21 1.0 9D16037 EPA 8260D 04/18/19 10:49 MRK 1,2,3-Trichloropropane [96-18-4]A 0.23 U ug/L 1 0.23 1.0 9D16037 EPA 8260D 04/18/19 10:49 MRK 1,2-Dibromo-3-chloropropane [96-12-8]A 0.48 U ug/L 1 0.48 1.0 9D16037 EPA 8260D 04/18/19 10:49 MRK 1,2-Dibromoethane [106-93-4]A 0.66 U ug/L 1 0.66 1.0 9D16037 EPA 8260D 04/18/19 10:49 MRK 1,2-Dichlorobenzene [95-50-1]A 0.19 U ug/L 1 0.19 1.0 9D16037 EPA 8260D 04/18/19 10:49 MRK 1,2-Dichloroethane [107-06-2]A 0.21 U ug/L 1 0.21 1.0 9D16037 EPA 8260D 04/18/19 10:49 MRK 1,2-Dichloropropane [78-87-5]A 0.10 U ug/L 1 0.10 1.0 9D16037 EPA 8260D 04/18/19 10:49 MRK 1,4-Dichlorobenzene [106-46-7]A 0.19 U ug/L 1 0.19 1.0 9D16037 EPA 8260D 04/18/19 10:49 MRK 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 9D16037 EPA 8260D 04/18/19 10:49 MRK 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 9D16037 EPA 8260D 04/18/19 10:49 MRK 4-Methyl-2-pentanone [108-10-1]A 1.1 U ug/L 1 1.1 5.0 9D16037 EPA 8260D 04/18/19 10:49 MRK Acetone [67-64-1]A 10 U ug/L 1 10 20 9D16037 EPA 8260D 04/18/19 10:49 MRK Acrylonitrile [107-13-1]A 3.5 U ug/L 1 3.5 10 9D16037 EPA 8260D 04/18/19 10:49 MRK Benzene [71-43-2]A 0.93 J ug/L 1 0.15 1.0 9D16037 EPA 8260D 04/18/19 10:49 MRK Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 9D16037 EPA 8260D 04/18/19 10:49 MRK Bromodichloromethane [75-27-4]A 0.17 U ug/L 1 0.17 1.0 9D16037 EPA 8260D 04/18/19 10:49 MRK Bromoform [75-25-2]A 0.22 U ug/L 1 0.22 1.0 9D16037 EPA 8260D 04/18/19 10:49 MRK Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 9D16037 EPA 8260D 04/18/19 10:49 MRK Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 9D16037 EPA 8260D 04/18/19 10:49 MRK Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 9D16037 EPA 8260D 04/18/19 10:49 MRK Chlorobenzene [108-90-7]A 0.17 U ug/L 1 0.17 1.0 9D16037 EPA 8260D 04/18/19 10:49 MRK Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 9D16037 EPA 8260D 04/18/19 10:49 MRK Chloroform [67-66-3]A 0.18 U ug/L 1 0.18 1.0 9D16037 EPA 8260D 04/18/19 10:49 MRK Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 9D16037 EPA 8260D 04/18/19 10:49 MRK cis-1,2-Dichloroethene [156-59-2]A 0.56 J ug/L 1 0.15 1.0 9D16037 EPA 8260D 04/18/19 10:49 MRK cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 9D16037 EPA 8260D 04/18/19 10:49 MRK Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 9D16037 EPA 8260D 04/18/19 10:49 MRK Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 9D16037 EPA 8260D 04/18/19 10:49 MRK Ethylbenzene [100-41-4]A 0.13 U ug/L 1 0.13 1.0 9D16037 EPA 8260D 04/18/19 10:49 MRK Iodomethane [74-88-4]A 1.7 U ug/L 1 1.7 5.0 9D16037 EPA 8260D 04/18/19 10:49 MRK Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 9D16037 EPA 8260D 04/18/19 10:49 MRK Styrene [100-42-5]A 0.11 U ug/L 1 0.11 1.0 9D16037 EPA 8260D 04/18/19 10:49 MRK Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 9D16037 EPA 8260D 04/18/19 10:49 MRK Tetrahydrofuran [109-99-9]A 0.53 U ug/L 1 0.53 1.0 9D22022 EPA 8260D 04/22/19 21:39 MRK Toluene [108-88-3]A 0.14 U ug/L 1 0.14 1.0 9D16037 EPA 8260D 04/18/19 10:49 MRK trans-1,2-Dichloroethene [156-60-5]A 0.21 U ug/L 1 0.21 1.0 9D16037 EPA 8260D 04/18/19 10:49 MRK trans-1,3-Dichloropropene [10061-02-6]A 0.15 U ug/L 1 0.15 1.0 9D16037 EPA 8260D 04/18/19 10:49 MRK trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 9D16037 EPA 8260D 04/18/19 10:49 MRK Trichloroethene [79-01-6]A 0.15 U ug/L 1 0.15 1.0 9D16037 EPA 8260D 04/18/19 10:49 MRK Trichlorofluoromethane [75-69-4]A 0.24 U ug/L 1 0.24 1.0 9D16037 EPA 8260D 04/18/19 10:49 MRK Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 9D16037 EPA 8260D 04/18/19 10:49 MRK Vinyl chloride [75-01-4]A 0.32 U ug/L 1 0.32 1.0 9D16037 EPA 8260D 04/18/19 10:49 MRK FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 20 Of 68 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-II3 Lab Sample ID:CC06034-02 Received: 04/12/19 10:30 Matrix: Ground Water Sampled:04/11/19 11:39 Work Order: CC06034 Project: White Street LF-Phase II Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes Xylenes (Total) [1330-20-7]1 0.45 U ug/L 1 0.45 3.0 9D16037 EPA 8260D 04/18/19 10:49 MRK Surrogates Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes 4-Bromofluorobenzene 59 1 50.0 118 % 53-136 9D16037 EPA 8260D 04118119 10:49 MRK Dlbromofluoromethane 46 1 50.0 92 % 67-129 9D16037 EPA 6260D 04118119 10:49 MRK Toluene-d8 54 1 50.0 108 % 59-134 9D16037 EPA 8260D 04118119 10:49 MRK Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 9D18039 EPA 6020B 04/19/19 12:31 CMK Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 9D20013 EPA 6010D 04/23/19 13:18 JDH Barium [7440-39-3]^ 257 ug/L 1 1.10 10.0 9D20013 EPA 6010D 04/23/19 13:18 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 9D20013 EPA 6010D 04/23/19 13:18 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 9D20013 EPA 6010D 04/23/19 13:18 JDH Chromium [7440-47-3]^ 2.57 J ug/L 1 1.40 10.0 9D20013 EPA 6010D 04/23/19 13:18 JDH Cobalt[7440-48-4]^ 12.1 ug/L 1 1.40 10.0 9D20013 EPA 6010D 04/23/19 13:18 JDH Copper[7440-50-8]^ 2.20 J ug/L 1 1.60 10.0 9D20013 EPA 6010D 04/23/19 13:18 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 9D20013 EPA 6010D 04/23/19 13:18 JDH Nickel[7440-02-O]^ 9.59 J ug/L 1 2.20 10.0 9D20013 EPA 6010D 04/23/19 13:18 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 9D20013 EPA 6010D 04/23/19 13:18 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 9D20013 EPA 6010D 04/23/19 13:18 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 9D18039 EPA 6020B 04/19/19 12:31 CMK Vanadium [7440-62-2]^ 2.08 J ug/L 1 1.40 10.0 9D20013 EPA 6010D 04/23/19 13:18 JDH Zinc [7440-66-6]^ 15.8 ug/L 1 4.40 10.0 9D20013 EPA 6010D 04/23/19 13:18 JDH Volatile Organic Compounds by GCMS SIM Isotope Dilution Analyte rCAS Numberl 1,4-Dioxane [123-91-1] Surrogates Toluene-& Results Flag Units DF MDL PQL Batch Method Analyzed By Notes 1.2 U ug/L 1 1.2 2.0 9D18049 EPA 8260D 04/18/19 16:44 KKW Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 5.2 1 5.00 104 % 75-125 9D18049 EPA 8260D 04118119 16:44 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 21 of 68 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-II4A Lab Sample ID:CC06034-03 Received: 04/12/19 10:30 Matrix: Ground Water Sampled:04/11/19 09:14 Work Order: CC06034 Project: White Street LF-Phase II Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte ICAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]^ 0.17 U ug/L 1 0.17 1.0 9D18042 EPA 8260D 04/19/19 12:02 MRK 1,1,1-Trichloroethane [71-55-6]^ 0.12 U ug/L 1 0.12 1.0 9D18042 EPA 8260D 04/19/19 12:02 MRK 1,1,2,2-Tetrachloroethane [79-34-5]^ 0.28 U ug/L 1 0.28 1.0 9D18042 EPA 8260D 04/19/19 12:02 MRK 1,1,2-Trichloroethane [79-00-5]^ 0.14 U ug/L 1 0.14 1.0 9D18042 EPA 8260D 04/19/19 12:02 MRK 1,1-Dichloroethane [75-34-3]1 0.13 U ug/L 1 0.13 1.0 9D18042 EPA 8260D 04/19/19 12:02 MRK 1,1-Dichloroethene [75-35-4]1 0.21 U ug/L 1 0.21 1.0 9D18042 EPA 8260D 04/19/19 12:02 MRK 1,2,3-Trichloropropane [96-18-4]1 0.23 U ug/L 1 0.23 1.0 9D18042 EPA 8260D 04/19/19 12:02 MRK 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 9D18042 EPA 8260D 04/19/19 12:02 MRK 1,2-Dibromoethane [106-93-4]1 0.66 U ug/L 1 0.66 1.0 9D18042 EPA 8260D 04/19/19 12:02 MRK 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 9D18042 EPA 8260D 04/19/19 12:02 MRK 1,2-Dichloroethane [107-06-2]1 0.21 U ug/L 1 0.21 1.0 9D18042 EPA 8260D 04/19/19 12:02 MRK 1,2-Dichloropropane [78-87-5]1 0.10 U ug/L 1 0.10 1.0 9D18042 EPA 8260D 04/19/19 12:02 MRK 1,4-Dichlorobenzene [306-46-7]^ 1.1 ug/L 1 0.19 1.0 9D18042 EPA 8260D 04/19/19 12:02 MRK 2-Butanone [78-93-3]^ 1.3 U ug/L 1 1.3 5.0 9D18042 EPA 8260D 04/19/19 12:02 MRK 2-Hexanone [591-78-6]^ 0.88 U ug/L 1 0.88 5.0 9D18042 EPA 8260D 04/19/19 12:02 MRK 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 9D18042 EPA 8260D 04/19/19 12:02 MRK Acetone [67-64-1]^ 10 U ug/L 1 10 20 9D18042 EPA 8260D 04/19/19 12:02 MRK Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 9D18042 EPA 8260D 04/19/19 12:02 MRK Benzene [71-43-2]^ 0.45 J ug/L 1 0.15 1.0 9D18042 EPA 8260D 04/19/19 12:02 MRK Bromochloromethane [74-97-5]^ 0.48 U ug/L 1 0.48 1.0 9D18042 EPA 8260D 04/19/19 12:02 MRK Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 9D18042 EPA 8260D 04/19/19 12:02 MRK Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 9D18042 EPA 8260D 04/19/19 12:02 MRK Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 9D18042 EPA 8260D 04/19/19 12:02 MRK Carbon disulfide [75-15-0]^ 1.5 U ug/L 1 1.5 5.0 9D18042 EPA 8260D 04/19/19 12:02 MRK Carbon tetrachloride [56-23-5]^ 0.17 U ug/L 1 0.17 1.0 9D18042 EPA 8260D 04/19/19 12:02 MRK Chlorobenzene [308-90-7]^ 3.5 ug/L 1 0.17 1.0 9D18042 EPA 8260D 04/19/19 12:02 MRK Chloroethane [75-00-3]^ 0.23 U ug/L 1 0.23 1.0 9D18042 EPA 8260D 04/19/19 12:02 MRK Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 9D18042 EPA 8260D 04/19/19 12:02 MRK Chloromethane [74-87-3]^ 0.13 U ug/L 1 0.13 1.0 9D18042 EPA 8260D 04/19/19 12:02 MRK cis- 1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 9D18042 EPA 8260D 04/19/19 12:02 MRK cis- 1,3-Dichloropropene [10061-01-5]^ 0.20 U ug/L 1 0.20 1.0 9D18042 EPA 8260D 04/19/19 12:02 MRK Dibromochloromethane [124-48-1]^ 0.17 U ug/L 1 0.17 1.0 9D18042 EPA 8260D 04/19/19 12:02 MRK Dibromomethane [74-95-3]^ 0.27 U ug/L 1 0.27 1.0 9D18042 EPA 8260D 04/19/19 12:02 MRK Ethylbenzene [100-41-4]^ 0.13 U ug/L 1 0.13 1.0 9D18042 EPA 8260D 04/19/19 12:02 MRK Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 9D18042 EPA 8260D 04/19/19 12:02 MRK Methylene chloride [75-09-2]^ 0.23 U ug/L 1 0.23 1.0 9D18042 EPA 8260D 04/19/19 12:02 MRK Styrene [100-42-5]^ 0.11 U ug/L 1 0.11 1.0 9D18042 EPA 8260D 04/19/19 12:02 MRK Tetrachloroethene [127-18-4]^ 0.17 U ug/L 1 0.17 1.0 9D18042 EPA 8260D 04/19/19 12:02 MRK Tetrahydrofuran [109-99-9]^ 0.53 U ug/L 1 0.53 1.0 9D18042 EPA 8260D 04/19/19 12:02 MRK Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 9D18042 EPA 8260D 04/19/19 12:02 MRK trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 9D18042 EPA 8260D 04/19/19 12:02 MRK trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 9D18042 EPA 8260D 04/19/19 12:02 MRK trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 U ug/L 1 0.70 1.0 9D18042 EPA 8260D 04/19/19 12:02 MRK Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 9D18042 EPA 8260D 04/19/19 12:02 MRK Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 9D18042 EPA 8260D 04/19/19 12:02 MRK Vinyl acetate [108-05-4]^ 0.95 U ug/L 1 0.95 5.0 9D18042 EPA 8260D 04/19/19 12:02 MRK Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 9D18042 EPA 8260D 04/19/19 12:02 MRK FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 22 Of 68 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-II4A Lab Sample ID:CC06034-03 Received: 04/12/19 10:30 Matrix: Ground Water Sampled:04/11/19 09:14 Work Order: CC06034 Project: White Street LF-Phase II Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte fCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes Xylenes (Total) [1330-20-7]1 0.45 U ug/L 1 0.45 3.0 9D18042 EPA 8260D 04/19/19 12:02 MRK Surrogates Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes 4-Bromofluorobenzene 58 1 50.0 116 % 53-136 9D18042 EPA 8260D 04119119 12:02 MRK Dlbromofluoromethane 46 1 50.0 92 % 67-129 9D18042 EPA 6260D 0411911912:02 MRK Toluene-d8 55 1 50.0 110 % 59-134 9D18042 EPA 8260D 0411911912:02 MRK Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte fCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 9D18039 EPA 6020B 04/19/19 13:31 CM K Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 9D20013 EPA 6010D 04/23/19 13:37 JDH Barium [7440-39-3]^ 166 ug/L 1 1.10 10.0 9D20013 EPA 6010D 04/23/19 13:37 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 9D20013 EPA 6010D 04/23/19 13:37 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 9D20013 EPA 6010D 04/23/19 13:37 JDH Chromium [7440-47-3]^ 2.75 J ug/L 1 1.40 10.0 9D20013 EPA 6010D 04/23/19 13:37 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 9D20013 EPA 6010D 04/23/19 13:37 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 9D20013 EPA 6010D 04/23/19 13:37 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 9D20013 EPA 6010D 04/23/19 13:37 JDH Nickel[7440-02-O]^ 59.0 ug/L 1 2.20 10.0 9D20013 EPA 6010D 04/23/19 13:37 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 9D20013 EPA 6010D 04/23/19 13:37 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 9D20013 EPA 6010D 04/23/19 13:37 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 9D18039 EPA 6020B 04/19/19 13:31 CM K Vanadium [7440-62-2]^ 3.54 J ug/L 1 1.40 10.0 9D20013 EPA 6010D 04/23/19 13:37 JDH Zinc[7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 9D20013 EPA 6010D 04/23/19 13:37 JDH Volatile Organic Compounds by GCMS SIM Isotope Dilution Analyte fCAS Numberl 1,4-Dioxane [123-91-1] Surrogates Toluene-& Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes 83 D ug/L 5 6.0 10 91D18049 EPA 8260D 04/18/19 17:20 KKW Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 5.7 1 5.00 115 % 75-125 9D18049 EPA 8260D 04118119 17:20 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 23 of 68 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-II6 Lab Sample ID:CC06034-04 Received: 04/12/19 10:30 Matrix: Ground Water Sampled:04/11/19 11:35 Work Order: CC06034 Project: White Street LF-Phase II Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte ICAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]^ 0.17 U ug/L 1 0.17 1.0 9D18042 EPA 8260D 04/19/19 12:34 MRK 1,1,1-Trichloroethane [71-55-6]^ 0.12 U ug/L 1 0.12 1.0 9D18042 EPA 8260D 04/19/19 12:34 MRK 1,1,2,2-Tetrachloroethane [79-34-5]^ 0.28 U ug/L 1 0.28 1.0 9D18042 EPA 8260D 04/19/19 12:34 MRK 1,1,2-Trichloroethane [79-00-5]^ 0.14 U ug/L 1 0.14 1.0 9D18042 EPA 8260D 04/19/19 12:34 MRK 1,1-Dichloroethane [75-34-3]1 0.13 U ug/L 1 0.13 1.0 9D18042 EPA 8260D 04/19/19 12:34 MRK 1,1-Dichloroethene [75-35-4]1 0.21 U ug/L 1 0.21 1.0 9D18042 EPA 8260D 04/19/19 12:34 MRK 1,2,3-Trichloropropane [96-18-4]1 0.23 U ug/L 1 0.23 1.0 9D18042 EPA 8260D 04/19/19 12:34 MRK 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 9D18042 EPA 8260D 04/19/19 12:34 MRK 1,2-Dibromoethane [106-93-4]1 0.66 U ug/L 1 0.66 1.0 9D18042 EPA 8260D 04/19/19 12:34 MRK 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 9D18042 EPA 8260D 04/19/19 12:34 MRK 1,2-Dichloroethane [107-06-2]1 0.21 U ug/L 1 0.21 1.0 9D18042 EPA 8260D 04/19/19 12:34 MRK 1,2-Dichloropropane [78-87-5]1 0.10 U ug/L 1 0.10 1.0 9D18042 EPA 8260D 04/19/19 12:34 MRK 1,4-Dichlorobenzene [106-46-7]1 0.19 U ug/L 1 0.19 1.0 9D18042 EPA 8260D 04/19/19 12:34 MRK 2-Butanone [78-93-3]^ 1.3 U ug/L 1 1.3 5.0 9D18042 EPA 8260D 04/19/19 12:34 MRK 2-Hexanone [591-78-6]1 0.88 U ug/L 1 0.88 5.0 9D18042 EPA 8260D 04/19/19 12:34 MRK 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 9D18042 EPA 8260D 04/19/19 12:34 MRK Acetone [67-64-1]^ 10 U ug/L 1 10 20 9D18042 EPA 8260D 04/19/19 12:34 MRK Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 9D18042 EPA 8260D 04/19/19 12:34 MRK Benzene [71-43-2]^ 0.15 U ug/L 1 0.15 1.0 9D18042 EPA 8260D 04/19/19 12:34 MRK Bromochloromethane [74-97-5]^ 0.48 U ug/L 1 0.48 1.0 9D18042 EPA 8260D 04/19/19 12:34 MRK Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 9D18042 EPA 8260D 04/19/19 12:34 MRK Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 9D18042 EPA 8260D 04/19/19 12:34 MRK Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 9D18042 EPA 8260D 04/19/19 12:34 MRK Carbon disulfide [75-15-0]^ 1.5 U ug/L 1 1.5 5.0 9D18042 EPA 8260D 04/19/19 12:34 MRK Carbon tetrachloride [56-23-5]^ 0.17 U ug/L 1 0.17 1.0 9D18042 EPA 8260D 04/19/19 12:34 MRK Chlorobenzene [108-90-7]^ 0.17 U ug/L 1 0.17 1.0 9D18042 EPA 8260D 04/19/19 12:34 MRK Chloroethane [75-00-3]^ 0.23 U ug/L 1 0.23 1.0 9D18042 EPA 8260D 04/19/19 12:34 MRK Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 9D18042 EPA 8260D 04/19/19 12:34 MRK Chloromethane [74-87-3]^ 0.13 U ug/L 1 0.13 1.0 9D18042 EPA 8260D 04/19/19 12:34 MRK cis- 1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 9D18042 EPA 8260D 04/19/19 12:34 MRK cis- 1,3-Dichloropropene [10061-01-5]^ 0.20 U ug/L 1 0.20 1.0 9D18042 EPA 8260D 04/19/19 12:34 MRK Dibromochloromethane [124-48-1]^ 0.17 U ug/L 1 0.17 1.0 9D18042 EPA 8260D 04/19/19 12:34 MRK Dibromomethane [74-95-3]^ 0.27 U ug/L 1 0.27 1.0 9D18042 EPA 8260D 04/19/19 12:34 MRK Ethylbenzene [100-41-4]^ 0.13 U ug/L 1 0.13 1.0 9D18042 EPA 8260D 04/19/19 12:34 MRK Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 9D18042 EPA 8260D 04/19/19 12:34 MRK Methylene chloride [75-09-2]^ 0.23 U ug/L 1 0.23 1.0 9D18042 EPA 8260D 04/19/19 12:34 MRK Styrene [100-42-5]^ 0.11 U ug/L 1 0.11 1.0 9D18042 EPA 8260D 04/19/19 12:34 MRK Tetrachloroethene [127-18-4]^ 0.17 U ug/L 1 0.17 1.0 9D18042 EPA 8260D 04/19/19 12:34 MRK Tetrahydrofuran [109-99-9]^ 0.53 U ug/L 1 0.53 1.0 9D18042 EPA 8260D 04/19/19 12:34 MRK Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 9D18042 EPA 8260D 04/19/19 12:34 MRK trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 9D18042 EPA 8260D 04/19/19 12:34 MRK trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 9D18042 EPA 8260D 04/19/19 12:34 MRK trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 U ug/L 1 0.70 1.0 9D18042 EPA 8260D 04/19/19 12:34 MRK Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 9D18042 EPA 8260D 04/19/19 12:34 MRK Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 9D18042 EPA 8260D 04/19/19 12:34 MRK Vinyl acetate [108-05-4]^ 0.95 U ug/L 1 0.95 5.0 9D18042 EPA 8260D 04/19/19 12:34 MRK Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 9D18042 EPA 8260D 04/19/19 12:34 MRK FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 24 of 68 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-II6 Lab Sample ID:CC06034-04 Received: 04/12/19 10:30 Matrix: Ground Water Sampled:04/11/19 11:35 Work Order: CC06034 Project: White Street LF-Phase II Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte fCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes Xylenes (Total) [1330-20-7]1 0.45 U ug/L 1 0.45 3.0 9D18042 EPA 8260D 04/19/19 12:34 MRK Surrogates Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes 4-Bromofluorobenzene 60 1 50.0 120 % 53-136 9D18042 EPA 8260D 04119119 12:34 MRK Dlbromofluoromethane 45 1 50.0 90 % 67-129 9D18042 EPA 6260D 0411911912:34 MRK Toluene-d8 55 1 50.0 109 % 59-134 9D18042 EPA 8260D 041191191234 MRK Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte fCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 9D18039 EPA 6020B 04/19/19 13:36 CMK Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 9D20013 EPA 6010D 04/23/19 13:40 JDH Barium [7440-39-3]^ 46.0 ug/L 1 1.10 10.0 9D20013 EPA 6010D 04/23/19 13:40 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 9D20013 EPA 6010D 04/23/19 13:40 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 9D20013 EPA 6010D 04/23/19 13:40 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 9D20013 EPA 6010D 04/23/19 13:40 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 9D20013 EPA 6010D 04/23/19 13:40 JDH Copper[7440-50-8]^ 86.0 ug/L 1 1.60 10.0 9D20013 EPA 6010D 04/23/19 13:40 JDH Lead [7439-92-1]^ 6.04 J ug/L 1 3.10 10.0 9D20013 EPA 6010D 04/23/19 13:40 JDH Nickel[7440-02-O]^ 2.25 J ug/L 1 2.20 10.0 9D20013 EPA 6010D 04/23/19 13:40 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 9D20013 EPA 6010D 04/23/19 13:40 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 9D20013 EPA 6010D 04/23/19 13:40 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 9D18039 EPA 6020B 04/19/19 13:36 CMK Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 9D20013 EPA 6010D 04/23/19 13:40 JDH Zinc[7440-66-6]^ 68.9 ug/L 1 4.40 10.0 9D20013 EPA 6010D 04/23/19 13:40 JDH Volatile Organic Compounds by GCMS SIM Isotope Dilution Analyte fCAS Numberl 1,4-Dioxane [123-91-1] Surrogates Toluene-& Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes 6.3 ug/L 1 1.2 2.0 91D19047 EPA 8260D 04/19/19 16:09 KKW Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 5.5 1 5.00 111 % 75-125 9D19047 EPA 8260D 0411911916:09 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 255 of 68 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-II7 Lab Sample ID:CC06034-05 Received: 04/12/19 10:30 Matrix: Ground Water Sampled:04/11/19 14:21 Work Order: CC06034 Project: White Street LF-Phase II Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte ICAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]^ 0.17 U ug/L 1 0.17 1.0 9D18042 EPA 8260D 04/19/19 13:05 MRK 1,1,1-Trichloroethane [71-55-6]^ 0.12 U ug/L 1 0.12 1.0 9D18042 EPA 8260D 04/19/19 13:05 MRK 1,1,2,2-Tetrachloroethane [79-34-5]^ 0.28 U ug/L 1 0.28 1.0 9D18042 EPA 8260D 04/19/19 13:05 MRK 1,1,2-Trichloroethane [79-00-5]^ 0.14 U ug/L 1 0.14 1.0 9D18042 EPA 8260D 04/19/19 13:05 MRK 1,1-Dichloroethane [75-34-3]1 0.13 U ug/L 1 0.13 1.0 9D18042 EPA 8260D 04/19/19 13:05 MRK 1,1-Dichloroethene [75-35-4]1 0.21 U ug/L 1 0.21 1.0 9D18042 EPA 8260D 04/19/19 13:05 MRK 1,2,3-Trichloropropane [96-18-4]1 0.23 U ug/L 1 0.23 1.0 9D18042 EPA 8260D 04/19/19 13:05 MRK 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 9D18042 EPA 8260D 04/19/19 13:05 MRK 1,2-Dibromoethane [106-93-4]1 0.66 U ug/L 1 0.66 1.0 9D18042 EPA 8260D 04/19/19 13:05 MRK 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 9D18042 EPA 8260D 04/19/19 13:05 MRK 1,2-Dichloroethane [107-06-2]1 0.21 U ug/L 1 0.21 1.0 9D18042 EPA 8260D 04/19/19 13:05 MRK 1,2-Dichloropropane [78-87-5]1 0.10 U ug/L 1 0.10 1.0 9D18042 EPA 8260D 04/19/19 13:05 MRK 1,4-Dichlorobenzene [106-46-7]1 0.19 U ug/L 1 0.19 1.0 9D18042 EPA 8260D 04/19/19 13:05 MRK 2-Butanone [78-93-3]^ 1.3 U ug/L 1 1.3 5.0 9D18042 EPA 8260D 04/19/19 13:05 MRK 2-Hexanone [591-78-6]1 0.88 U ug/L 1 0.88 5.0 9D18042 EPA 8260D 04/19/19 13:05 MRK 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 9D18042 EPA 8260D 04/19/19 13:05 MRK Acetone [67-64-1]^ 10 U ug/L 1 10 20 9D18042 EPA 8260D 04/19/19 13:05 MRK Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 9D18042 EPA 8260D 04/19/19 13:05 MRK Benzene [71-43-2]^ 0.15 U ug/L 1 0.15 1.0 9D18042 EPA 8260D 04/19/19 13:05 MRK Bromochloromethane [74-97-5]^ 0.48 U ug/L 1 0.48 1.0 9D18042 EPA 8260D 04/19/19 13:05 MRK Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 9D18042 EPA 8260D 04/19/19 13:05 MRK Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 9D18042 EPA 8260D 04/19/19 13:05 MRK Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 9D18042 EPA 8260D 04/19/19 13:05 MRK Carbon disulfide [75-15-0]^ 1.5 U ug/L 1 1.5 5.0 9D18042 EPA 8260D 04/19/19 13:05 MRK Carbon tetrachloride [56-23-5]^ 0.17 U ug/L 1 0.17 1.0 9D18042 EPA 8260D 04/19/19 13:05 MRK Chlorobenzene [108-90-7]^ 0.17 U ug/L 1 0.17 1.0 9D18042 EPA 8260D 04/19/19 13:05 MRK Chloroethane [75-00-3]^ 0.23 U ug/L 1 0.23 1.0 9D18042 EPA 8260D 04/19/19 13:05 MRK Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 9D18042 EPA 8260D 04/19/19 13:05 MRK Chloromethane [74-87-3]^ 0.13 U ug/L 1 0.13 1.0 9D18042 EPA 8260D 04/19/19 13:05 MRK cis- 1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 9D18042 EPA 8260D 04/19/19 13:05 MRK cis- 1,3-Dichloropropene [10061-01-5]^ 0.20 U ug/L 1 0.20 1.0 9D18042 EPA 8260D 04/19/19 13:05 MRK Dibromochloromethane [124-48-1]^ 0.17 U ug/L 1 0.17 1.0 9D18042 EPA 8260D 04/19/19 13:05 MRK Dibromomethane [74-95-3]^ 0.27 U ug/L 1 0.27 1.0 9D18042 EPA 8260D 04/19/19 13:05 MRK Ethylbenzene [100-41-4]^ 0.13 U ug/L 1 0.13 1.0 9D18042 EPA 8260D 04/19/19 13:05 MRK Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 9D18042 EPA 8260D 04/19/19 13:05 MRK Methylene chloride [75-09-2]^ 0.23 U ug/L 1 0.23 1.0 9D18042 EPA 8260D 04/19/19 13:05 MRK Styrene [100-42-5]^ 0.11 U ug/L 1 0.11 1.0 9D18042 EPA 8260D 04/19/19 13:05 MRK Tetrachloroethene [127-18-4]^ 0.17 U ug/L 1 0.17 1.0 9D18042 EPA 8260D 04/19/19 13:05 MRK Tetrahydrofuran [109-99-9]^ 0.53 U ug/L 1 0.53 1.0 9D18042 EPA 8260D 04/19/19 13:05 MRK Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 9D18042 EPA 8260D 04/19/19 13:05 MRK trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 9D18042 EPA 8260D 04/19/19 13:05 MRK trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 9D18042 EPA 8260D 04/19/19 13:05 MRK trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 U ug/L 1 0.70 1.0 9D18042 EPA 8260D 04/19/19 13:05 MRK Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 9D18042 EPA 8260D 04/19/19 13:05 MRK Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 9D18042 EPA 8260D 04/19/19 13:05 MRK Vinyl acetate [108-05-4]^ 0.95 U ug/L 1 0.95 5.0 9D18042 EPA 8260D 04/19/19 13:05 MRK Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 9D18042 EPA 8260D 04/19/19 13:05 MRK FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 26 Of 68 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-II7 Lab Sample ID:CC06034-05 Received: 04/12/19 10:30 Matrix: Ground Water Sampled:04/11/19 14:21 Work Order: CC06034 Project: White Street LF-Phase II Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte fCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes Xylenes (Total) [1330-20-7]1 0.45 U ug/L 1 0.45 3.0 9D18042 EPA 8260D 04/19/19 13:05 MRK Surrogates Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes 4-Bromofluorobenzene 60 1 50.0 120 % 53-136 9D18042 EPA 8260D 04119119 13:05 MRK Dlbromofluoromethane 45 1 50.0 90 % 67-129 9D18042 EPA 6260D 0411911913:05 MRK Toluene-d8 56 1 50.0 112 % 59-134 9D18042 EPA 8260D 0411911913:05 MRK Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte fCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 9D18039 EPA 6020B 04/19/19 13:40 CMK Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 9D20013 EPA 6010D 04/23/19 13:42 JDH Barium [7440-39-3]^ 18.3 ug/L 1 1.10 10.0 9D20013 EPA 6010D 04/23/19 13:42 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 9D20013 EPA 6010D 04/23/19 13:42 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 9D20013 EPA 6010D 04/23/19 13:42 JDH Chromium [7440-47-3]^ 2.55 J ug/L 1 1.40 10.0 9D20013 EPA 6010D 04/23/19 13:42 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 9D20013 EPA 6010D 04/23/19 13:42 JDH Copper[7440-50-8]^ 1.75 J ug/L 1 1.60 10.0 9D20013 EPA 6010D 04/23/19 13:42 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 9D20013 EPA 6010D 04/23/19 13:42 JDH Nickel[7440-02-0]^ 2.20 U ug/L 1 2.20 10.0 9D20013 EPA 6010D 04/23/19 13:42 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 9D20013 EPA 6010D 04/23/19 13:42 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 9D20013 EPA 6010D 04/23/19 13:42 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 9D18039 EPA 6020B 04/19/19 13:40 CMK Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 9D20013 EPA 6010D 04/23/19 13:42 JDH Zinc[7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 9D20013 EPA 6010D 04/23/19 13:42 JDH Volatile Organic Compounds by GCMS SIM Isotope Dilution Analyte fCAS Numberl 1,4-Dioxane [123-91-1] Surrogates Toluene-& Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes 1.6 J ug/L 1 1.2 2.0 91D18049 EPA 8260D 04/18/19 18:32 KKW Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 5.7 1 5.00 114 % 75-125 9D18049 EPA 8260D 04118119 1832 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 27 of 68 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-Duplicate II Lab Sample ID:CC06034-08 Received: 04/12/19 10:30 Matrix: Ground Water Sampled:04/11/19 00:00 Work Order: CC06034 Project: White Street LF-Phase II Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte ICAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]^ 0.17 U ug/L 1 0.17 1.0 9D18042 EPA 8260D 04/19/19 13:37 MRK 1,1,1-Trichloroethane [71-55-6]^ 0.12 U ug/L 1 0.12 1.0 9D18042 EPA 8260D 04/19/19 13:37 MRK 1,1,2,2-Tetrachloroethane [79-34-5]^ 0.28 U ug/L 1 0.28 1.0 9D18042 EPA 8260D 04/19/19 13:37 MRK 1,1,2-Trichloroethane [79-00-5]^ 0.14 U ug/L 1 0.14 1.0 9D18042 EPA 8260D 04/19/19 13:37 MRK 1,1-Dichloroethane [75-34-3]^ 0.42 J ug/L 1 0.13 1.0 9D18042 EPA 8260D 04/19/19 13:37 MRK 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 9D18042 EPA 8260D 04/19/19 13:37 MRK 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 9D18042 EPA 8260D 04/19/19 13:37 MRK 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 9D18042 EPA 8260D 04/19/19 13:37 MRK 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 9D18042 EPA 8260D 04/19/19 13:37 MRK 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 9D18042 EPA 8260D 04/19/19 13:37 MRK 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 9D18042 EPA 8260D 04/19/19 13:37 MRK 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 9D18042 EPA 8260D 04/19/19 13:37 MRK 1,4-Dichlorobenzene [306-46-7]^ 1.1 ug/L 1 0.19 1.0 9D18042 EPA 8260D 04/19/19 13:37 MRK 2-Butanone [78-93-3]^ 1.3 U ug/L 1 1.3 5.0 9D18042 EPA 8260D 04/19/19 13:37 MRK 2-Hexanone [591-78-6]^ 0.88 U ug/L 1 0.88 5.0 9D18042 EPA 8260D 04/19/19 13:37 MRK 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 9D18042 EPA 8260D 04/19/19 13:37 MRK Acetone [67-64-1]^ 10 U ug/L 1 10 20 9D18042 EPA 8260D 04/19/19 13:37 MRK Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 9D18042 EPA 8260D 04/19/19 13:37 MRK Benzene [71-43-2]^ 0.15 U ug/L 1 0.15 1.0 9D18042 EPA 8260D 04/19/19 13:37 MRK Bromochloromethane [74-97-5]^ 0.48 U ug/L 1 0.48 1.0 9D18042 EPA 8260D 04/19/19 13:37 MRK Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 9D18042 EPA 8260D 04/19/19 13:37 MRK Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 9D18042 EPA 8260D 04/19/19 13:37 MRK Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 9D18042 EPA 8260D 04/19/19 13:37 MRK Carbon disulfide [75-15-0]^ 1.5 U ug/L 1 1.5 5.0 9D18042 EPA 8260D 04/19/19 13:37 MRK Carbon tetrachloride [56-23-5]^ 0.17 U ug/L 1 0.17 1.0 9D18042 EPA 8260D 04/19/19 13:37 MRK Chlorobenzene [308-90-7]^ 3.5 ug/L 1 0.17 1.0 9D18042 EPA 8260D 04/19/19 13:37 MRK Chloroethane [75-00-3]^ 0.23 U ug/L 1 0.23 1.0 9D18042 EPA 8260D 04/19/19 13:37 MRK Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 9D18042 EPA 8260D 04/19/19 13:37 MRK Chloromethane [74-87-3]^ 0.13 U ug/L 1 0.13 1.0 9D18042 EPA 8260D 04/19/19 13:37 MRK cis- 1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 9D18042 EPA 8260D 04/19/19 13:37 MRK cis- 1,3-Dichloropropene [10061-01-5]^ 0.20 U ug/L 1 0.20 1.0 9D18042 EPA 8260D 04/19/19 13:37 MRK Dibromochloromethane [124-48-1]^ 0.17 U ug/L 1 0.17 1.0 9D18042 EPA 8260D 04/19/19 13:37 MRK Dibromomethane [74-95-3]^ 0.27 U ug/L 1 0.27 1.0 9D18042 EPA 8260D 04/19/19 13:37 MRK Ethylbenzene [100-41-4]^ 0.13 U ug/L 1 0.13 1.0 9D18042 EPA 8260D 04/19/19 13:37 MRK Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 9D18042 EPA 8260D 04/19/19 13:37 MRK Methylene chloride [75-09-2]^ 0.23 U ug/L 1 0.23 1.0 9D18042 EPA 8260D 04/19/19 13:37 MRK Styrene [100-42-5]^ 0.11 U ug/L 1 0.11 1.0 9D18042 EPA 8260D 04/19/19 13:37 MRK Tetrachloroethene [127-18-4]^ 0.17 U ug/L 1 0.17 1.0 9D18042 EPA 8260D 04/19/19 13:37 MRK Tetrahydrofuran [109-99-9]^ 0.53 U ug/L 1 0.53 1.0 9D18042 EPA 8260D 04/19/19 13:37 MRK Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 9D18042 EPA 8260D 04/19/19 13:37 MRK trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 9D18042 EPA 8260D 04/19/19 13:37 MRK trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 9D18042 EPA 8260D 04/19/19 13:37 MRK trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 U ug/L 1 0.70 1.0 9D18042 EPA 8260D 04/19/19 13:37 MRK Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 9D18042 EPA 8260D 04/19/19 13:37 MRK Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 9D18042 EPA 8260D 04/19/19 13:37 MRK Vinyl acetate [108-05-4]^ 0.95 U ug/L 1 0.95 5.0 9D18042 EPA 8260D 04/19/19 13:37 MRK Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 9D18042 EPA 8260D 04/19/19 13:37 MRK FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 28 Of 68 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-Duplicate II Lab Sample ID:CC06034-08 Received: 04/12/19 10:30 Matrix: Ground Water Sampled:04/11/19 00:00 Work Order: CC06034 Project: White Street LF-Phase II Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte fCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes Xylenes (Total) [1330-20-7]1 0.45 U ug/L 1 0.45 3.0 9D18042 EPA 8260D 04/19/19 13:37 MRK Surrogates Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes 4-Bromofluorobenzene 59 1 50.0 118 % 53-136 9D18042 EPA 8260D 04119119 13:37 MRK Dlbromofluoromethane 46 1 50.0 93 % 67-129 9D18042 EPA 6260D 0411911913:37 MRK Toluene-d8 55 1 50.0 110 % 59-134 9D18042 EPA 8260D 041191191337 MRK Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte fCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 9D18039 EPA 6020B 04/19/19 13:44 CMK Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 9D20013 EPA 6010D 04/23/19 13:45 JDH Barium [7440-39-3]^ 170 ug/L 1 1.10 10.0 9D20013 EPA 6010D 04/23/19 13:45 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 9D20013 EPA 6010D 04/23/19 13:45 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 9D20013 EPA 6010D 04/23/19 13:45 JDH Chromium [7440-47-3]^ 2.83 J ug/L 1 1.40 10.0 9D20013 EPA 6010D 04/23/19 13:45 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 9D20013 EPA 6010D 04/23/19 13:45 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 9D20013 EPA 6010D 04/23/19 13:45 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 9D20013 EPA 6010D 04/23/19 13:45 JDH Nickel[7440-02-O]^ 60.3 ug/L 1 2.20 10.0 9D20013 EPA 6010D 04/23/19 13:45 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 9D20013 EPA 6010D 04/23/19 13:45 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 9D20013 EPA 6010D 04/23/19 13:45 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 9D18039 EPA 6020B 04/19/19 13:44 CMK Vanadium [7440-62-2]^ 3.97 J ug/L 1 1.40 10.0 9D20013 EPA 6010D 04/23/19 13:45 JDH Zinc[7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 9D20013 EPA 6010D 04/23/19 13:45 JDH Volatile Organic Compounds by GCMS SIM Isotope Dilution Analyte fCAS Numberl 1,4-Dioxane [123-91-1] Surrogates Toluene-& Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes 78 D ug/L 5 6.0 10 91D19047 EPA 8260D 04/19/19 16:43 KKW Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 6.2 1 5.00 123 % 75-125 9D19047 EPA 8260D 0411911916:43 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 29 of 68 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4103-Trip Blank II Lab Sample ID:CC06034-09 Received: 04/12/19 10:30 Matrix: Water Sampled:04/11/19 09:14 Work Order: CC06034 Project: White Street LF-Phase II Sampled By:enCO Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flao Units DF MDL Q Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 9D18042 EPA 8260D 04/19/19 14:09 MRK 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 9D18042 EPA 8260D 04/19/19 14:09 MRK 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 9D18042 EPA 8260D 04/19/19 14:09 MRK 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 9D18042 EPA 8260D 04/19/19 14:09 MRK 1,1-Dichloroethane [75-34-3]A 0.13 U ug/L 1 0.13 1.0 9D18042 EPA 8260D 04/19/19 14:09 MRK 1,1-Dichloroethene [75-35-4]A 0.21 U ug/L 1 0.21 1.0 9D18042 EPA 8260D 04/19/19 14:09 MRK 1,2,3-Trichloropropane [96-18-4]A 0.23 U ug/L 1 0.23 1.0 9D18042 EPA 8260D 04/19/19 14:09 MRK 1,2-Dibromo-3-chloropropane [96-12-8]A 0.48 U ug/L 1 0.48 1.0 9D18042 EPA 8260D 04/19/19 14:09 MRK 1,2-Dibromoethane [106-93-4]A 0.66 U ug/L 1 0.66 1.0 9D18042 EPA 8260D 04/19/19 14:09 MRK 1,2-Dichlorobenzene [95-50-1]A 0.19 U ug/L 1 0.19 1.0 9D18042 EPA 8260D 04/19/19 14:09 MRK 1,2-Dichloroethane [107-06-2]A 0.21 U ug/L 1 0.21 1.0 9D18042 EPA 8260D 04/19/19 14:09 MRK 1,2-Dichloropropane [78-87-5]A 0.10 U ug/L 1 0.10 1.0 9D18042 EPA 8260D 04/19/19 14:09 MRK 1,4-Dichlorobenzene [106-46-7]A 0.19 U ug/L 1 0.19 1.0 9D18042 EPA 8260D 04/19/19 14:09 MRK 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 9D18042 EPA 8260D 04/19/19 14:09 MRK 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 9D18042 EPA 8260D 04/19/19 14:09 MRK 4-Methyl-2-pentanone [108-10-1]A 1.1 U ug/L 1 1.1 5.0 9D18042 EPA 8260D 04/19/19 14:09 MRK Acetone [67-64-1]A 10 U ug/L 1 10 20 9D18042 EPA 8260D 04/19/19 14:09 MRK Acrylonitrile [107-13-1]A 3.5 U ug/L 1 3.5 10 9D18042 EPA 8260D 04/19/19 14:09 MRK Benzene [71-43-2]A 0.15 U ug/L 1 0.15 1.0 9D18042 EPA 8260D 04/19/19 14:09 MRK Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 9D18042 EPA 8260D 04/19/19 14:09 MRK Bromodichloromethane [75-27-4]A 0.17 U ug/L 1 0.17 1.0 9D18042 EPA 8260D 04/19/19 14:09 MRK Bromoform [75-25-2]A 0.22 U ug/L 1 0.22 1.0 9D18042 EPA 8260D 04/19/19 14:09 MRK Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 9D18042 EPA 8260D 04/19/19 14:09 MRK Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 9D18042 EPA 8260D 04/19/19 14:09 MRK Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 9D18042 EPA 8260D 04/19/19 14:09 MRK Chlorobenzene [108-90-7]A 0.17 U ug/L 1 0.17 1.0 9D18042 EPA 8260D 04/19/19 14:09 MRK Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 9D18042 EPA 8260D 04/19/19 14:09 MRK Chloroform [67-66-3]A 0.18 U ug/L 1 0.18 1.0 9D18042 EPA 8260D 04/19/19 14:09 MRK Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 9D18042 EPA 8260D 04/19/19 14:09 MRK cis-1,2-Dichloroethene [156-59-2]A 0.15 U ug/L 1 0.15 1.0 9D18042 EPA 8260D 04/19/19 14:09 MRK cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 9D18042 EPA 8260D 04/19/19 14:09 MRK Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 9D18042 EPA 8260D 04/19/19 14:09 MRK Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 9D18042 EPA 8260D 04/19/19 14:09 MRK Ethylbenzene [100-41-4]A 0.13 U ug/L 1 0.13 1.0 9D18042 EPA 8260D 04/19/19 14:09 MRK Iodomethane [74-88-4]A 1.7 U ug/L 1 1.7 5.0 9D18042 EPA 8260D 04/19/19 14:09 MRK Methylene chloride [75-09-2]A 0.52 J ug/L 1 0.23 1.0 9D18042 EPA 8260D 04/19/19 14:09 MRK 0-01 Styrene [100-42-5]A 0.11 U ug/L 1 0.11 1.0 9D18042 EPA 8260D 04/19/19 14:09 MRK Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 9D18042 EPA 8260D 04/19/19 14:09 MRK Tetrahydrofuran [109-99-9]A 0.53 U ug/L 1 0.53 1.0 9D18042 EPA 8260D 04/19/19 14:09 MRK Toluene [108-88-3]A 0.14 U ug/L 1 0.14 1.0 9D18042 EPA 8260D 04/19/19 14:09 MRK trans-1,2-Dichloroethene [156-60-5]A 0.21 U ug/L 1 0.21 1.0 9D18042 EPA 8260D 04/19/19 14:09 MRK trans-1,3-Dichloropropene [10061-02-6]A 0.15 U ug/L 1 0.15 1.0 9D18042 EPA 8260D 04/19/19 14:09 MRK trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 9D18042 EPA 8260D 04/19/19 14:09 MRK Trichloroethene [79-01-6]A 0.15 U ug/L 1 0.15 1.0 9D18042 EPA 8260D 04/19/19 14:09 MRK Trichlorofluoromethane [75-69-4]A 0.24 U ug/L 1 0.24 1.0 9D18042 EPA 8260D 04/19/19 14:09 MRK Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 9D18042 EPA 8260D 04/19/19 14:09 MRK Vinyl chloride [75-01-4]A 0.32 U ug/L 1 0.32 1.0 9D18042 EPA 8260D 04/19/19 14:09 MRK FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 30 Of 68 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-Trip Blank II Lab Sample ID:CC06034-09 Received: 04/12/19 10:30 Matrix: Water Sampled:04/11/19 09:14 Work Order: CC06034 Project: White Street LF-Phase II Sampled By:enCO Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes Xylenes (Total) [1330-20-7]1 0.45 U ug/L 1 0.45 3.0 9D18042 EPA 8260D 04/19/19 14:09 MIRK Surrogates Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes 4-Bromofluorobenzene 59 1 50.0 119 % 53-136 9D18042 EPA 8260D 04119119 14:09 MRK Dlbromofluoromethane 46 1 50.0 91 % 67-129 9D18042 EPA 6260D 0411911914:09 MRK Toluene-d8 55 1 50.0 110 % 59-134 9D18042 EPA 8260D 0411911914:09 MRK Volatile Organic Compounds by GCMS SIM Isotope Dilution Analyte rCAS Numberl 1,4-Dioxane [123-91-1] Surrogates Toluene-& Results Flag Units DF MDL POLL Batch Method Analyzed Ay Notes 1.2 U ug/L 1 1.2 2.0 9D18049 EPA 8260D 04/18/19 19:45 KKW Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 6.1 1 5.00 122 % 75-125 9D18049 EPA 8260D 04118119 19:45 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 31 Of 6$ 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4103-II713 Lab Sample ID:CC06075-01 Received: 04/15/19 10:00 Matrix: Ground Water Sampled:04/12/19 12:39 Work Order: CC06075 Project: White Street LF-Phase II Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flao Units DF MDL Q Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 04:54 MRK 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 9D19024 EPA 8260D 04/20/19 04:54 MRK 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 9D19024 EPA 8260D 04/20/19 04:54 MRK 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 9D19024 EPA 8260D 04/20/19 04:54 MRK 1,1-Dichloroethane [75-34-3]A 0.99 J ug/L 1 0.13 1.0 9D19024 EPA 8260D 04/20/19 04:54 MRK 1,1-Dichloroethene [75-35-4]A 0.21 U ug/L 1 0.21 1.0 9D19024 EPA 8260D 04/20/19 04:54 MRK 1,2,3-Trichloropropane [96-18-4]A 0.23 U ug/L 1 0.23 1.0 9D19024 EPA 8260D 04/20/19 04:54 MRK 1,2-Dibromo-3-chloropropane [96-12-8]A 0.48 U ug/L 1 0.48 1.0 9D19024 EPA 8260D 04/20/19 04:54 MRK 1,2-Dibromoethane [106-93-4]A 0.66 U ug/L 1 0.66 1.0 9D19024 EPA 8260D 04/20/19 04:54 MRK 1,2-Dichlorobenzene [95-50-1]A 0.19 U ug/L 1 0.19 1.0 9D19024 EPA 8260D 04/20/19 04:54 MRK 1,2-Dichloroethane [107-06-2]A 0.21 U ug/L 1 0.21 1.0 9D19024 EPA 8260D 04/20/19 04:54 MRK 1,2-Dichloropropane [78-87-5]A 0.10 U ug/L 1 0.10 1.0 9D19024 EPA 8260D 04/20/19 04:54 MRK 1,4-Dichlorobenzene [106-46-7]A 0.19 U ug/L 1 0.19 1.0 9D19024 EPA 8260D 04/20/19 04:54 MRK 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 9D19024 EPA 8260D 04/20/19 04:54 MRK 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 9D19024 EPA 8260D 04/20/19 04:54 MRK 4-Methyl-2-pentanone [108-10-1]A 1.1 U ug/L 1 1.1 5.0 9D19024 EPA 8260D 04/20/19 04:54 MRK Acetone [67-64-1]A 10 U ug/L 1 10 20 9D19024 EPA 8260D 04/20/19 04:54 MRK Acrylonitrile [107-13-1]A 3.5 U ug/L 1 3.5 10 9D19024 EPA 8260D 04/20/19 04:54 MRK Benzene[71-43-2]A 0.15 U ug/L 1 0.15 1.0 9D19024 EPA 8260D 04/20/19 04:54 MRK Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 9D19024 EPA 8260D 04/20/19 04:54 MRK Bromodichloromethane [75-27-4]A 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 04:54 MRK Bromoform [75-25-2]A 0.22 U ug/L 1 0.22 1.0 9D19024 EPA 8260D 04/20/19 04:54 MRK Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 9D19024 EPA 8260D 04/20/19 04:54 MRK Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 9D19024 EPA 8260D 04/20/19 04:54 MRK Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 04:54 MRK Chlorobenzene [108-90-7]A 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 04:54 MRK Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 9D19024 EPA 8260D 04/20/19 04:54 MRK Chloroform [67-66-3]A 0.18 U ug/L 1 0.18 1.0 9D19024 EPA 8260D 04/20/19 04:54 MRK Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 9D19024 EPA 8260D 04/20/19 04:54 MRK cis-1,2-Dichloroethene [156-59-2]A 0.15 U ug/L 1 0.15 1.0 9D19024 EPA 8260D 04/20/19 04:54 MRK cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 9D19024 EPA 8260D 04/20/19 04:54 MRK Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 04:54 MRK Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 9D19024 EPA 8260D 04/20/19 04:54 MRK Ethylbenzene [100-41-4]A 0.13 U ug/L 1 0.13 1.0 9D19024 EPA 8260D 04/20/19 04:54 MRK Iodomethane [74-88-4]A 1.7 U ug/L 1 1.7 5.0 9D19024 EPA 8260D 04/20/19 04:54 MRK Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 9D19024 EPA 8260D 04/20/19 04:54 MRK Styrene [100-42-5]A 0.11 U ug/L 1 0.11 1.0 9D19024 EPA 8260D 04/20/19 04:54 MRK Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 04:54 MRK Tetrahydrofuran [109-99-9]A 0.53 U ug/L 1 0.53 1.0 9D19024 EPA 8260D 04/20/19 04:54 MRK Toluene [108-88-3]A 0.14 U ug/L 1 0.14 1.0 9D19024 EPA 8260D 04/20/19 04:54 MRK trans-1,2-Dichloroethene [156-60-5]A 0.21 U ug/L 1 0.21 1.0 9D19024 EPA 8260D 04/20/19 04:54 MRK trans-1,3-Dichloropropene [10061-02-6]A 0.15 U ug/L 1 0.15 1.0 9D19024 EPA 8260D 04/20/19 04:54 MRK trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 9D19024 EPA 8260D 04/20/19 04:54 MRK Trichloroethene [79-01-6]A 0.15 U ug/L 1 0.15 1.0 9D19024 EPA 8260D 04/20/19 04:54 MRK Trichlorofluoromethane [75-69-4]A 0.24 U ug/L 1 0.24 1.0 9D19024 EPA 8260D 04/20/19 04:54 MRK Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 9D19024 EPA 8260D 04/20/19 04:54 MRK Vinyl chloride [75-01-4]A 0.32 U ug/L 1 0.32 1.0 9D19024 EPA 8260D 04/20/19 04:54 MRK FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 32 Of 68 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-II713 Lab Sample ID:CC06075-01 Received: 04/15/19 10:00 Matrix: Ground Water Sampled:04/12/19 12:39 Work Order: CC06075 Project: White Street LF-Phase II Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes Xylenes (Total) [1330-20-7]1 0.45 U ug/L 1 0.45 3.0 9D19024 EPA 8260D 04/20/19 04:54 MRK Surrogates Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes 4-Bromofluorobenzene 57 1 50.0 115 % 53-136 9D19024 EPA 8260D 04120119 04:54 MRK Dlbromofluoromethane 46 1 50.0 91 % 67-129 9D19024 EPA 6260D 04120119 04:54 MRK Toluene-d8 55 1 50.0 109 % 59-134 9D19024 EPA 8260D 04120119 04:54 MRK Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 9D18039 EPA 6020B 04/19/19 14:14 CM K Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 9D22021 EPA 6010D 04/24/19 16:44 JDH Barium [7440-39-3]^ 28.4 ug/L 1 1.10 10.0 9D22021 EPA 6010D 04/24/19 16:44 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 9D22021 EPA 6010D 04/24/19 16:44 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 9D22021 EPA 6010D 04/24/19 16:44 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 9D22021 EPA 6010D 04/24/19 16:44 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 9D22021 EPA 6010D 04/24/19 16:44 JDH Copper[7440-50-8]^ 2.69 J ug/L 1 1.60 10.0 9D22021 EPA 6010D 04/24/19 16:44 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 9D22021 EPA 6010D 04/24/19 16:44 JDH Nickel[7440-02-0]^ 2.20 U ug/L 1 2.20 10.0 9D22021 EPA 6010D 04/24/19 16:44 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 9D22021 EPA 6010D 04/24/19 16:44 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 9D22021 EPA 6010D 04/24/19 16:44 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 9D18039 EPA 6020B 04/19/19 14:14 CM K Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 9D22021 EPA 6010D 04/24/19 16:44 JDH Zinc[7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 9D22021 EPA 6010D 04/24/19 16:44 JDH Volatile Organic Compounds by GCMS SIM Isotope Dilution Analyte rCAS Numberl 1,4-Dioxane [123-91-1] Surrogates Toluene-& Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes 1.2 U ug/L 1 1.2 2.0 9D18055 EPA 8260D 04/19/19 01:05 KKW Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 6.4 1 5.00 127 % 75-125 9D18055 EPA 8260D 04119119 01:05 KKW QS-03 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 33 of 68 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 9D11024 - EPA 5030E MS Blank (9D31024-BLK3) Prepared: 04/11/2019 15:25 Analyzed: 04/12/2019 01:33 Analvte Result Flaa POL Units 1, 1, 1,2-Tetrachloroethane 0.17 U 1.0 ug/L 1,1,1-Trichloroethane 0.12 U 1.0 ug/L 1,1,2,2-Tetrachloroethane 0.28 U 1.0 ug/L 1,1,2-Trichloroethane 0.14 U 1.0 ug/L 1,1-Dichloroethane 0.13 U 1.0 ug/L 1,1-Dichloroethene 0.21 U 1.0 ug/L 1,2,3-Trichloropropane 0.23 U 1.0 ug/L 1,2-Dibromo-3-chloropropane 0.48 U 1.0 ug/L 1,2-Dibromoethane 0.66 U 1.0 ug/L 1,2-Dichlorobenzene 0.19 U 1.0 ug/L 1,2-Dichloroethane 0.21 U 1.0 ug/L 1,2-Dichloropropane 0.10 U 1.0 ug/L 1,4-Dichlorobenzene 0.19 U 1.0 ug/L 2-Butanone 1.3 U 5.0 ug/L 2-Hexanone 0.88 U 5.0 ug/L 4-Methyl-2-pentanone 1.1 U 5.0 ug/L Acetone 10 U 20 ug/L Acrylonitrile 3.5 U 10 ug/L Benzene 0.15 U 1.0 ug/L Bromochloromethane 0.48 U 1.0 ug/L Bromodichloromethane 0.17 U 1.0 ug/L Bromoform 0.22 U 1.0 ug/L Bromomethane 0.14 U 1.0 ug/L Carbon disulfide 1.5 U 5.0 ug/L Carbon tetrachloride 0.17 U 1.0 ug/L Chlorobenzene 0.17 U 1.0 ug/L Chloroethane 0.23 U 1.0 ug/L Chloroform 0.18 U 1.0 ug/L Chloromethane 0.13 U 1.0 ug/L cis- 1,2-Dichloroethene 0.15 U 1.0 ug/L cis- 1,3-Dichloropropene 0.20 U 1.0 ug/L Dibromochloromethane 0.17 U 1.0 ug/L Dibromomethane 0.27 U 1.0 ug/L Ethylbenzene 0.13 U 1.0 ug/L Iodomethane 1.7 U 5.0 ug/L Methylene chloride 0.23 U 1.0 ug/L Styrene 0.11 U 1.0 ug/L Tetrachloroethene 0.17 U 1.0 ug/L Tetrahydrofuran 0.53 U 1.0 ug/L Toluene 0.14 U 1.0 ug/L trans-1,2-Dichloroethene 0.21 U 1.0 ug/L trans-1,3-Dichloropropene 0.15 U 1.0 ug/L trans-1,4-Dichloro-2-butene 0.70 U 1.0 ug/L Trichloroethene 0.15 U 1.0 ug/L Trichlorofluoromethane 0.24 U 1.0 ug/L Vinyl acetate 0.95 U 5.0 ug/L Vinyl chloride 0.32 U 1.0 ug/L Xylenes (Total) 0.45 U 3.0 ug/L Spike Source %REC RPD Level Result %REC Limits RPD Limit Notes 4-Bromofluorobenzene FINAL 60 u9/L 50.0 120 53-136 This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 34 Of 68 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 9D11024 - EPA 5030E MS - Continued Blank (9D31024-BLK3) Continued Prepared: 04/11/2019 15:25 Analyzed: 04/12/2019 01:33 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes D/bromofluoromethane 49 u91L 50.0 99 67-129 Toluene-& 56 u91L 50.0 112 59-134 LCS (91311024-BSI) Prepared: 04/11/2019 15:25 Analyzed: 04/11/2019 23:27 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 19 1.0 ug/L 20.0 95 75-133 Benzene 26 1.0 ug/L 20.0 131 80-134 Chlorobenzene 17 1.0 ug/L 20.0 87 80-120 Toluene 20 1.0 ug/L 20.0 98 71-120 Trichloroethene 24 1.0 ug/L 20.0 120 74-120 Matrix Spike (91313024-MS1) Prepared: 04/11/2019 15:25 Analyzed: 04/11/2019 23:59 Source: CC05897-09 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 22 1.0 ug/L 20.0 0.21 U 112 75-133 Benzene 27 1.0 ug/L 20.0 0.15 U 137 80-134 QM-07 Chlorobenzene 19 1.0 ug/L 20.0 0.17 U 95 80-120 Toluene 21 1.0 ug/L 20.0 0.14 U 104 71-120 Trichloroethene 26 1.0 ug/L 20.0 0.15 U 132 74-120 QM-07 Matrix Spike Dup (91313024-MS131) Prepared: 04/11/2019 15:25 Analyzed: 04/12/2019 00:30 Source: CCO5897-09 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 23 1.0 ug/L 20.0 0.21 U 116 75-133 4 20 Benzene 25 1.0 ug/L 20.0 0.15 U 124 80-134 10 17 Chlorobenzene 18 1.0 ug/L 20.0 0.17 U 90 80-120 6 16 Toluene 20 1.0 ug/L 20.0 0.14 U 101 71-120 3 17 Trichloroethene 26 1.0 ug/L 20.0 0.15 U 132 74-120 0 22 QM-07 Batch 9D16020 -EPA 5030B MS Blank (91D16020-BLKI) Prepared: 04/16/2019 13:20 Analyzed: 04/16/2019 19:24 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1,1,2-Tetrachloroethane 0.17 U 1.0 ug/L 1,1,1-Trichloroethane 0.12 U 1.0 ug/L 1,1,2,2-Tetrachloroethane 0.28 U 1.0 ug/L 1,1,2-Trichloroethane 0.14 U 1.0 ug/L 1,1-Dichloroethane 0.13 U 1.0 ug/L 1,1-Dichloroethene 0.21 U 1.0 ug/L 1,2,3-Trichloropropane 0.23 U 1.0 ug/L 1,2-Dibromo-3-chloropropane 0.48 U 1.0 ug/L 1,2-Dibromoethane 0.66 U 1.0 ug/L 1,2-Dichlorobenzene 0.19 U 1.0 ug/L 1,2-Dichloroethane 0.21 U 1.0 ug/L 1,2-Dichloropropane 0.10 U 1.0 ug/L 1,4-Dichlorobenzene 0.19 U 1.0 ug/L FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 35 Of 68 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 9D16020 - EPA 5030E MS - Continued Blank (91336020-BLK3) Continued Prepared: 04/16/2019 13:20 Analyzed: 04/16/2019 19:24 Analvte Result Flaa POL Units 2-Butanone 1.3 U 5.0 ug/L 2-Hexanone 0.88 U 5.0 ug/L 4-Methyl-2-pentanone 1.1 U 5.0 ug/L Acetone 10 U 20 ug/L Acrylonitrile 3.5 U 10 ug/L Benzene 0.15 U 1.0 ug/L Bromochloromethane 0.48 U 1.0 ug/L Bromodichloromethane 0.17 U 1.0 ug/L Bromoform 0.22 U 1.0 ug/L Bromomethane 0.14 U 1.0 ug/L Carbon disulfide 1.5 U 5.0 ug/L Carbon tetrachloride 0.17 U 1.0 ug/L Chlorobenzene 0.17 U 1.0 ug/L Chloroethane 0.23 U 1.0 ug/L Chloroform 0.18 U 1.0 ug/L Chloromethane 0.13 U 1.0 ug/L cis- 1,2-Dichloroethene 0.15 U 1.0 ug/L cis- 1,3-Dichloropropene 0.20 U 1.0 ug/L Dibromochloromethane 0.17 U 1.0 ug/L Dibromomethane 0.27 U 1.0 ug/L Ethylbenzene 0.13 U 1.0 ug/L Iodomethane 1.7 U 5.0 ug/L Methylene chloride 0.23 U 1.0 ug/L Styrene 0.11 U 1.0 ug/L Tetrachloroethene 0.17 U 1.0 ug/L Toluene 0.14 U 1.0 ug/L trans-1,2-Dichloroethene 0.21 U 1.0 ug/L trans-1,3-Dichloropropene 0.15 U 1.0 ug/L trans-1,4-Dichloro-2-butene 0.70 U 1.0 ug/L Trichloroethene 0.15 U 1.0 ug/L Trichlorofluoromethane 0.24 U 1.0 ug/L Vinyl acetate 0.95 U 5.0 ug/L Vinyl chloride 0.32 U 1.0 ug/L Xylenes (Total) 0.45 U 3.0 ug/L Spike Source %REC RPD Level Result %REC Limits RPD Limit Notes 4-Bromofluorobenzene 55 u91L 50.0 111 53-136 Dibromofluoromethane 56 u9/L 50.0 112 67-129 Toluene-d8 56 u9/L 50.0 116 59-134 LCS (9D16020-BSI) Prepared: 04/16/2019 00:20 Analyzed: 04/16/2019 17:23 Spike Source %REC RPD Analvte Result Flaa CQ Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 22 1.0 ug/L 20.0 108 75-133 Benzene 22 1.0 ug/L 20.0 108 80-134 Chlorobenzene 19 1.0 ug/L 20.0 95 80-120 Toluene 21 1.0 ug/L 20.0 104 71-120 Trichloroethene 20 1.0 ug/L 20.0 98 74-120 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 36 Of 68 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 9D16020 - EPA 5030E MS - Continued Matrix Spike (9D16020-MS3) Prepared: 04/16/2019 00:20 Analyzed: 04/16/2019 17:53 Source: CC06087-03 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 24 1.0 ug/L 20.0 0.21 U 118 75-133 Benzene 23 1.0 ug/L 20.0 0.15 U 115 80-134 Chlorobenzene 20 1.0 ug/L 20.0 0.17 U 100 80-120 Toluene 22 1.0 ug/L 20.0 0.14 U 110 71-120 Trichloroethene 21 1.0 ug/L 20.0 0.15 U 105 74-120 Matrix Spike Dup (9D16020-MSD1) Prepared: 04/16/2019 00:20 Analyzed: 04/16/2019 18:23 Source: CC06087-03 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 22 1.0 ug/L 20.0 0.21 U 112 75-133 5 20 Benzene 22 1.0 ug/L 20.0 0.15 U 112 80-134 2 17 Chlorobenzene 20 1.0 ug/L 20.0 0.17 U 98 80-120 2 16 Toluene 21 1.0 ug/L 20.0 0.14 U 104 71-120 6 17 Trichloroethene 20 1.0 ug/L 20.0 0.15 U 102 74-120 3 22 Batch 9D16037 - EPA 5030E MS Blank (91336037-BLK3) Prepared: 04/16/2019 16:35 Analyzed: 04/18/2019 02:19 Analvte Result Flaq POL Units 1, 1, 1,2-Tetrachloroethane 0.17 U 1.0 ug/L 1,1,1-Trichloroethane 0.12 U 1.0 ug/L 1,1,2,2-Tetrachloroethane 0.28 U 1.0 ug/L 1,1,2-Trichloroethane 0.14 U 1.0 ug/L 1,1-Dichloroethane 0.13 U 1.0 ug/L 1,1-Dichloroethene 0.21 U 1.0 ug/L 1,2,3-Trichloropropane 0.23 U 1.0 ug/L 1,2-Dibromo-3-chloropropane 0.48 U 1.0 ug/L 1,2-Dibromoethane 0.66 U 1.0 ug/L 1,2-Dichlorobenzene 0.19 U 1.0 ug/L 1,2-Dichloroethane 0.21 U 1.0 ug/L 1,2-Dichloropropane 0.10 U 1.0 ug/L 1,4-Dichlorobenzene 0.19 U 1.0 ug/L 2-Butanone 1.3 U 5.0 ug/L 2-Hexanone 0.88 U 5.0 ug/L 4-Methyl-2-pentanone 1.1 U 5.0 ug/L Acetone 10 U 20 ug/L Acrylonitrile 3.5 U 10 ug/L Benzene 0.15 U 1.0 ug/L Bromochloromethane 0.48 U 1.0 ug/L Bromodichloromethane 0.17 U 1.0 ug/L Bromoform 0.22 U 1.0 ug/L Bromomethane 0.14 U 1.0 ug/L Carbon disulfide 1.5 U 5.0 ug/L Carbon tetrachloride 0.17 U 1.0 ug/L Chlorobenzene 0.17 U 1.0 ug/L Chloroethane 0.23 U 1.0 ug/L Chloroform 0.18 U 1.0 ug/L Chloromethane 0.13 U 1.0 ug/L Spike Source %REC RPD Level Result %REC Limits RPD Limit Notes FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 37 Of 68 QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 9D16037 - EPA 5030E MS - Continued (� �Eo www.encolabs.com Blank (9D16037-BLK3) Continued Prepared: 04/16/2019 16:35 Analyzed: 04/18/2019 02:19 Analvte Result Flaq POL Units cis- 1,2-Dichloroethene 0.15 U 1.0 ug/L cis- 1,3-Dichloropropene 0.20 U 1.0 ug/L Dibromochloromethane 0.17 U 1.0 ug/L Dibromomethane 0.27 U 1.0 ug/L Ethylbenzene 0.13 U 1.0 ug/L Iodomethane 1.7 U 5.0 ug/L Methylene chloride 0.23 U 1.0 ug/L Styrene 0.11 U 1.0 ug/L Tetrachloroethene 0.17 U 1.0 ug/L Tetrahydrofuran 0.53 U 1.0 ug/L Toluene 0.14 U 1.0 ug/L trans-1,2-Dichloroethene 0.21 U 1.0 ug/L trans-1,3-Dichloropropene 0.15 U 1.0 ug/L trans-1,4-Dichloro-2-butene 0.70 U 1.0 ug/L Trichloroethene 0.15 U 1.0 ug/L Trichlorofluoromethane 0.24 U 1.0 ug/L Vinyl acetate 0.95 U 5.0 ug/L Vinyl chloride 0.32 U 1.0 ug/L Xylenes (Total) 0.45 U 3.0 ug/L Spike Source %REC RPD Level Result %REC Limits RPD Limit Notes 4-Bromofluorobenzene 57 u9/L 50.0 114 53-136 Dibromofluoromethane 47 u9/L 50.0 93 67-129 Toluene-d8 52 u9/L 50.0 104 59-134 LCS (91316037-BSI) Prepared: 04/16/2019 16:35 Analyzed: 04/18/2019 00:12 Spike Source %REC RPD Analvte Result Flao POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 18 1.0 ug/L 20.0 90 75-133 Benzene 21 1.0 ug/L 20.0 104 80-134 Chlorobenzene 20 1.0 ug/L 20.0 101 80-120 Toluene 20 1.0 ug/L 20.0 102 71-120 Trichloroethene 22 1.0 ug/L 20.0 108 74-120 Matrix Spike (91316037-1VIS1) Prepared: 04/16/2019 16:35 Analyzed: 04/18/2019 00:44 Source: CC06087-10 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 19 1.0 ug/L 20.0 0.21 U 94 75-133 Benzene 22 1.0 ug/L 20.0 0.15 U 111 80-134 Chlorobenzene 20 1.0 ug/L 20.0 0.17 U 98 80-120 Toluene 20 1.0 ug/L 20.0 0.14 U 100 71-120 Trichloroethene 24 1.0 ug/L 20.0 0.15 U 120 74-120 Matrix Spike Dup (91316037-MS131) Prepared: 04/16/2019 16:35 Analyzed: 04/18/2019 01:15 Source: CC06087-10 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 19 1.0 ug/L 20.0 0.21 U 94 75-133 0.9 20 Benzene 21 1.0 ug/L 20.0 0.15 U 103 80-134 7 17 Chlorobenzene 19 1.0 ug/L 20.0 0.17 U 97 80-120 1 16 Toluene 20 1.0 ug/L 20.0 0.14 U 102 71-120 1 17 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 38 Of 68 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 9D16037 - EPA 5030E MS - Continued Matrix Spike Dup (911)16037-MSDI) Continued Prepared: 04/16/2019 16:35 Analyzed: 04/18/2019 01:15 Source: CC06087-10 Spike Source %REC RPD Analvte Result Flaq Q Units Level Result %REC Limits RPD Limit Notes Trichloroethene 24 1.0 ug/L 20.0 0.15 U 120 74-120 0.6 22 Batch 9D17039 - EPA 5030B MS Blank (9D37039-BLK3) Prepared: 04/17/2019 14:45 Analyzed: 04/18/2019 00:17 Analvte Result Flaq POL Units 1, 1, 1,2-Tetrachloroethane 0.17 U 1.0 ug/L 1,1,1-Trichloroethane 0.12 U 1.0 ug/L 1,1,2,2-Tetrachloroethane 0.28 U 1.0 ug/L 1,1,2-Trichloroethane 0.14 U 1.0 ug/L 1,1-Dichloroethane 0.13 U 1.0 ug/L 1,1-Dichloroethene 0.21 U 1.0 ug/L 1,2,3-Trichloropropane 0.23 U 1.0 ug/L 1,2-Dibromo-3-chloropropane 0.48 U 1.0 ug/L 1,2-Dibromoethane 0.66 U 1.0 ug/L 1,2-Dichlorobenzene 0.19 U 1.0 ug/L 1,2-Dichloroethane 0.21 U 1.0 ug/L 1,2-Dichloropropane 0.10 U 1.0 ug/L 1,4-Dichlorobenzene 0.19 U 1.0 ug/L 2-Butanone 1.3 U 5.0 ug/L 2-Hexanone 0.88 U 5.0 ug/L 4-Methyl-2-pentanone 1.1 U 5.0 ug/L Acetone 10 U 20 ug/L Acrylonitrile 3.5 U 10 ug/L Benzene 0.15 U 1.0 ug/L Bromochloromethane 0.48 U 1.0 ug/L Bromodichloromethane 0.17 U 1.0 ug/L Bromoform 0.22 U 1.0 ug/L Bromomethane 0.14 U 1.0 ug/L Carbon disulfide 1.5 U 5.0 ug/L Carbon tetrachloride 0.17 U 1.0 ug/L Chlorobenzene 0.17 U 1.0 ug/L Chloroethane 0.23 U 1.0 ug/L Chloroform 0.18 U 1.0 ug/L Chloromethane 0.13 U 1.0 ug/L cis- 1,2-Dichloroethene 0.15 U 1.0 ug/L cis- 1,3-Dichloropropene 0.20 U 1.0 ug/L Dibromochloromethane 0.17 U 1.0 ug/L Dibromomethane 0.27 U 1.0 ug/L Ethylbenzene 0.13 U 1.0 ug/L Iodomethane 1.7 U 5.0 ug/L Methylene chloride 0.23 U 1.0 ug/L Styrene 0.11 U 1.0 ug/L Tetrachloroethene 0.17 U 1.0 ug/L Tetrahydrofuran 0.53 U 1.0 ug/L Toluene 0.14 U 1.0 ug/L trans-1,2-Dichloroethene 0.21 U 1.0 ug/L trans-1,3-Dichloropropene 0.15 U 1.0 ug/L Spike Source %REC RPD Level Result %REC Limits RPD Limit Notes FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 39 Of 68 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 9D17039 - EPA 5030E MS - Continued Blank (9D17039-BLK3) Continued Prepared: 04/17/2019 14:45 Analyzed: 04/18/2019 00:17 Analvte Result Flaq POL Units trans-1,4-Dichloro-2-butene 0.70 U 1.0 ug/L Trichloroethene 0.15 U 1.0 ug/L Trichlorofluoromethane 0.24 U 1.0 ug/L Vinyl acetate 0.95 U 5.0 ug/L Vinyl chloride 0.32 U 1.0 ug/L Xylenes (Total) 0.45 U 3.0 ug/L Spike Source %REC RPD Level Result %REC Limits RPD Limit Notes 4-8romofluorobenzene 55 u9/L 50.0 110 53-136 Dibromofluoromethane 54 u91L 50.0 108 67-129 Toluene-d8 57 u9/L 50.0 113 59-134 LCS (91317039-BS1) Prepared: 04/17/2019 14:45 Analyzed: 04/17/2019 22:17 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 20 1.0 ug/L 20.0 101 75-133 Benzene 23 1.0 ug/L 20.0 115 80-134 Chlorobenzene 22 1.0 ug/L 20.0 108 80-120 Toluene 23 1.0 ug/L 20.0 115 71-120 Trichloroethene 22 1.0 ug/L 20.0 110 74-120 Matrix Spike (9D17039-MS1) Prepared: 04/17/2019 14:45 Analyzed: 04/17/2019 22:47 Source: CC06087-09 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 19 1.0 ug/L 20.0 0.21 U 96 75-133 Benzene 21 1.0 ug/L 20.0 0.15 U 107 80-134 Chlorobenzene 20 1.0 ug/L 20.0 0.17 U 102 80-120 Toluene 21 1.0 ug/L 20.0 0.14 U 106 71-120 Trichloroethene 21 1.0 ug/L 20.0 0.15 U 104 74-120 Matrix Spike Dup (91317039-MS131) Prepared: 04/17/2019 14:45 Analyzed: 04/17/2019 23:17 Source: CC06087-09 Spike Source %REC RPD Analvte Result Flan POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 20 1.0 ug/L 20.0 0.21 U 99 75-133 3 20 Benzene 22 1.0 ug/L 20.0 0.15 U 112 80-134 4 17 Chlorobenzene 20 1.0 ug/L 20.0 0.17 U 102 80-120 0.1 16 Toluene 22 1.0 ug/L 20.0 0.14 U 110 71-120 4 17 Trichloroethene 21 1.0 ug/L 20.0 0.15 U 104 74-120 0.2 22 Batch 9DIS042 - EPA 5030B MS Blank (9D38042-BLK3) Prepared: 04/18/2019 16:33 Analyzed: 04/19/2019 05:45 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1,1,2-Tetrachloroethane 0.17 U 1.0 ug/L 1,1,1-Trichloroethane 0.12 U 1.0 ug/L 1,1,2,2-Tetrachloroethane 0.28 U 1.0 ug/L 1,1,2-Trichloroethane 0.14 U 1.0 ug/L 1,1-Dichloroethane 0.13 U 1.0 ug/L 1,1-Dichloroethene 0.21 U 1.0 ug/L FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 4O Of 68 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 9D18042 - EPA 5030E MS - Continued Blank (9D38042-BLK3) Continued Prepared: 04/18/2019 16:33 Analyzed: 04/19/2019 05:45 Analvte Result Flaq POL Units 1,2,3-Trichloropropane 0.23 U 1.0 ug/L 1,2-Dibromo-3-chloropropane 0.48 U 1.0 ug/L 1,2-Dibromoethane 0.66 U 1.0 ug/L 1,2-Dichlorobenzene 0.19 U 1.0 ug/L 1,2-Dichloroethane 0.21 U 1.0 ug/L 1,2-Dichloropropane 0.10 U 1.0 ug/L 1,4-Dichlorobenzene 0.19 U 1.0 ug/L 2-Butanone 1.3 U 5.0 ug/L 2-Hexanone 0.88 U 5.0 ug/L 4-Methyl-2-pentanone 1.1 U 5.0 ug/L Acetone 10 U 20 ug/L Acrylonitrile 3.5 U 10 ug/L Benzene 0.15 U 1.0 ug/L Bromochloromethane 0.48 U 1.0 ug/L Bromodichloromethane 0.17 U 1.0 ug/L Bromoform 0.22 U 1.0 ug/L Bromomethane 0.14 U 1.0 ug/L Carbon disulfide 1.5 U 5.0 ug/L Carbon tetrachloride 0.17 U 1.0 ug/L Chlorobenzene 0.17 U 1.0 ug/L Chloroethane 0.23 U 1.0 ug/L Chloroform 0.18 U 1.0 ug/L Chloromethane 0.13 U 1.0 ug/L cis- 1,2-Dichloroethene 0.15 U 1.0 ug/L cis- 1,3-Dichloropropene 0.20 U 1.0 ug/L Dibromochloromethane 0.17 U 1.0 ug/L Dibromomethane 0.27 U 1.0 ug/L Ethylbenzene 0.13 U 1.0 ug/L Iodomethane 1.7 U 5.0 ug/L Methylene chloride 0.23 U 1.0 ug/L Styrene 0.11 U 1.0 ug/L Tetrachloroethene 0.17 U 1.0 ug/L Tetrahydrofuran 0.53 U 1.0 ug/L Toluene 0.14 U 1.0 ug/L trans-1,2-Dichloroethene 0.21 U 1.0 ug/L trans-1,3-Dichloropropene 0.15 U 1.0 ug/L trans-1,4-Dichloro-2-butene 0.70 U 1.0 ug/L Trichloroethene 0.15 U 1.0 ug/L Trichlorofluoromethane 0.24 U 1.0 ug/L Vinyl acetate 0.95 U 5.0 ug/L Vinyl chloride 0.32 U 1.0 ug/L Xylenes (Total) 0.45 U 3.0 ug/L Spike Source %REC RPD Level Result %REC Limits RPD Limit Notes 4-Bromofluorobenzene 56 u9/L 50.0 113 53-136 Dlbromofluoromethane 46 u91L 50.0 91 67-129 Toluene-d8 54 u9/L 50.0 108 59-134 LCS (9D18042-BS1) Prepared: 04/18/2019 16:33 Analyzed: 04/19/2019 03:40 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 41 Of 6$ (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 9D18042 - EPA 5030E MS - Continued LCS (9D18042-BSI) Continued Prepared: 04/18/2019 16:33 Analyzed: 04/19/2019 03:40 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 18 1.0 ug/L 20.0 90 75-133 Benzene 22 1.0 ug/L 20.0 112 80-134 Chlorobenzene 19 1.0 ug/L 20.0 94 80-120 Toluene 21 1.0 ug/L 20.0 104 71-120 Trichloroethene 22 1.0 ug/L 20.0 112 74-120 Matrix Spike (9D18042-MS1) Prepared: 04/18/2019 16:33 Analyzed: 04/19/2019 04:11 Source: CC06172-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 19 1.0 ug/L 20.0 0.21 U 97 75-133 Benzene 23 1.0 ug/L 20.0 0.15 U 113 80-134 Chlorobenzene 21 1.0 ug/L 20.0 0.17 U 104 80-120 Toluene 22 1.0 ug/L 20.0 0.14 U 109 71-120 Trichloroethene 26 1.0 ug/L 20.0 0.15 U 132 74-120 QM-07 Matrix Spike Dup (9DI8042-MSDI) Prepared: 04/18/2019 16:33 Analyzed: 04/19/2019 04:42 Source: CC06172-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 18 1.0 ug/L 20.0 0.21 U 92 75-133 5 20 Benzene 21 1.0 ug/L 20.0 0.15 U 104 80-134 8 17 Chlorobenzene 19 1.0 ug/L 20.0 0.17 U 96 80-120 8 16 Toluene 20 1.0 ug/L 20.0 0.14 U 101 71-120 7 17 Trichloroethene 25 1.0 ug/L 20.0 0.15 U 124 74-120 6 22 QM-07 Batch 9D19024 - EPA 5030E MS Blank (9D39024-BLK3) Prepared: 04/19/2019 11:31 Analyzed: 04/19/2019 19:57 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1,1,2-Tetrachloroethane 0.17 U 1.0 ug/L 1,1,1-Trichloroethane 0.12 U 1.0 ug/L 1,1,2,2-Tetrachloroethane 0.28 U 1.0 ug/L 1,1,2-Trichloroethane 0.14 U 1.0 ug/L 1,1-Dichloroethane 0.13 U 1.0 ug/L 1,1-Dichloroethene 0.21 U 1.0 ug/L 1,2,3-Trichloropropane 0.23 U 1.0 ug/L 1,2-Dibromo-3-chloropropane 0.48 U 1.0 ug/L 1,2-Dibromoethane 0.66 U 1.0 ug/L 1,2-Dichlorobenzene 0.19 U 1.0 ug/L 1,2-Dichloroethane 0.21 U 1.0 ug/L 1,2-Dichloropropane 0.10 U 1.0 ug/L 1,4-Dichlorobenzene 0.19 U 1.0 ug/L 2-Butanone 1.3 U 5.0 ug/L 2-Hexanone 0.88 U 5.0 ug/L 4-Methyl-2-pentanone 1.1 U 5.0 ug/L Acetone 10 U 20 ug/L Acrylonitrile 3.5 U 10 ug/L Benzene 0.15 U 1.0 ug/L Bromochloromethane 0.48 U 1.0 ug/L FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 42 Of 68 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 9D19024 - EPA 5030E MS - Continued Blank (9D39024-BLK3) Continued Prepared: 04/19/2019 11:31 Analyzed: 04/19/2019 19:57 Analvte Result Flaq POL Units Bromodichloromethane 0.17 U 1.0 ug/L Bromoform 0.22 U 1.0 ug/L Bromomethane 0.14 U 1.0 ug/L Carbon disulfide 1.5 U 5.0 ug/L Carbon tetrachloride 0.17 U 1.0 ug/L Chlorobenzene 0.17 U 1.0 ug/L Chloroethane 0.23 U 1.0 ug/L Chloroform 0.18 U 1.0 ug/L Chloromethane 0.13 U 1.0 ug/L cis- 1,2-Dichloroethene 0.15 U 1.0 ug/L cis- 1,3-Dichloropropene 0.20 U 1.0 ug/L Dibromochloromethane 0.17 U 1.0 ug/L Dibromomethane 0.27 U 1.0 ug/L Ethylbenzene 0.13 U 1.0 ug/L Iodomethane 1.7 U 5.0 ug/L Methylene chloride 0.23 U 1.0 ug/L Styrene 0.11 U 1.0 ug/L Tetrachloroethene 0.17 U 1.0 ug/L Tetrahydrofuran 0.53 U 1.0 ug/L Toluene 0.14 U 1.0 ug/L trans-1,2-Dichloroethene 0.21 U 1.0 ug/L trans-1,3-Dichloropropene 0.15 U 1.0 ug/L trans-1,4-Dichloro-2-butene 0.70 U 1.0 ug/L Trichloroethene 0.15 U 1.0 ug/L Trichlorofluoromethane 0.24 U 1.0 ug/L Vinyl acetate 0.95 U 5.0 ug/L Vinyl chloride 0.32 U 1.0 ug/L Xylenes (Total) 0.45 U 3.0 ug/L Spike Source %REC RPD Level Result %REC Limits RPD Limit Notes 4-Bromofluorobenzene 55 u91L 50.0 110 53-136 Dibromofluoromethane 46 u9/L 50.0 92 67-129 Toluene-d8 52 u9/L 50.0 103 59-134 LCS (91319024-BSI) Prepared: 04/19/2019 11:31 Analyzed: 04/19/2019 17:51 Spike Source %REC RPD Analvte Result Flaa CQ Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 18 1.0 ug/L 20.0 89 75-133 Benzene 21 1.0 ug/L 20.0 103 80-134 Chlorobenzene 20 1.0 ug/L 20.0 101 80-120 Toluene 20 1.0 ug/L 20.0 102 71-120 Trichloroethene 21 1.0 ug/L 20.0 103 74-120 Matrix Spike (91319024-1VIS1) Prepared: 04/19/2019 11:31 Analyzed: 04/19/2019 18:22 Source: CC06172-09 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 19 1.0 ug/L 20.0 0.21 U 96 75-133 Benzene 22 1.0 ug/L 20.0 0.15 U 109 80-134 Chlorobenzene 20 1.0 ug/L 20.0 0.17 U 101 80-120 Toluene 21 1.0 ug/L 20.0 0.14 U 105 71-120 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 43 Of 68 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 9D19024 - EPA 5030E MS - Continued Matrix Spike (9D19024-MS3) Continued Prepared: 04/19/2019 11:31 Analyzed: 04/19/2019 18:22 Source: CC06172-09 Spike Source %REC RPD Analvte Result Flaq Q Units Level Result %REC Limits RPD Limit Notes Trichloroethene 26 1.0 ug/L 20.0 0.15 U 130 74-120 QM-07 Matrix Spike Dup (91319024-MS131) Prepared: 04/19/2019 11:31 Analyzed: 04/19/2019 18:54 Source: CC06172-09 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 19 1.0 ug/L 20.0 0.21 U 94 75-133 2 20 Benzene 20 1.0 ug/L 20.0 0.15 U 102 80-134 7 17 Chlorobenzene 20 1.0 ug/L 20.0 0.17 U 102 80-120 2 16 Toluene 21 1.0 ug/L 20.0 0.14 U 103 71-120 2 17 Trichloroethene 25 1.0 ug/L 20.0 0.15 U 126 74-120 3 22 QM-07 Batch 9D22022 - EPA 5030E MS Blank (9D22022-BLK3) Prepared: 04/22/2019 00:30 Analyzed: 04/22/2019 12:43 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Tetrahydrofuran 0.53 U 1.0 ug/L Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 9D11009 - EPA 3005A Blank (9D31009-BLK3) Prepared: 04/11/2019 10:35 Analyzed: 04/15/2019 12:44 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 0.370 U 1.00 ug/L Thallium 0.110 U 1.00 ug/L LCS (9D11009-BSI) Prepared: 04/11/2019 10:35 Analyzed: 04/15/2019 12:53 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 20.2 1.00 ug/L 20.0 101 80-120 Thallium 20.5 1.00 ug/L 20.0 103 80-120 Matrix Spike (91311009-MS3) Prepared: 04/11/2019 10:35 Analyzed: 04/15/2019 12:57 Source: CC04950-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 36.8 2.00 ug/L 40.0 0.740 U 92 75-125 Thallium 40.7 2.00 ug/L 40.0 0.220 U 102 75-125 Matrix Spike Dup (9D33009-MSD1) Prepared: 04/11/2019 10:35 Analyzed: 04/15/2019 13:12 Source: CC04950-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 37.2 2.00 ug/L 40.0 0.740 U 93 75-125 1 20 Thallium 40.8 2.00 ug/L 40.0 0.220 U 102 75-125 0.3 20 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 44 Of 68 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 9D11009 - EPA 3005A - Continued Post Spike (9D31009-PS3) Prepared: 04/11/2019 10:35 Analyzed: 04/15/2019 13:16 Source: CC04950-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 21.1 1.00 ug/L 20.0 0.00973 105 75-125 Thallium 20.9 1.00 ug/L 20.0 0.00847 104 75-125 Batch 9DI1011 - EPA 3005A Blank (9D11021-BLK1) Prepared: 04/11/2019 13:38 Analyzed: 04/16/2019 11:51 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 7.60 U 10.0 ug/L Barium 1.10 U 10.0 ug/L Beryllium 0.160 U 1.00 ug/L Cadmium 0.360 U 1.00 ug/L Chromium 1.40 U 10.0 ug/L Cobalt 1.40 U 10.0 ug/L Copper 1.60 U 10.0 ug/L Lead 3.10 U 10.0 ug/L Nickel 2.78 3 10.0 ug/L Selenium 6.20 U 10.0 ug/L Silver 1.90 U 10.0 ug/L Vanadium 1.40 U 10.0 ug/L Zinc 4.40 U 10.0 ug/L LCS (9D11021-BS1) Prepared: 04/11/2019 13:38 Analyzed: 04/16/2019 11:57 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 201 10.0 ug/L 200 100 80-120 Barium 197 10.0 ug/L 200 98 80-120 Beryllium 20.9 1.00 ug/L 20.0 105 80-120 Cadmium 20.1 1.00 ug/L 20.0 101 80-120 Chromium 201 10.0 ug/L 200 100 80-120 Cobalt 205 10.0 ug/L 200 102 80-120 Copper 200 10.0 ug/L 200 100 80-120 Lead 203 10.0 ug/L 200 101 80-120 Nickel 203 10.0 ug/L 200 101 80-120 Selenium 197 10.0 ug/L 200 99 80-120 Silver 206 10.0 ug/L 200 103 80-120 Vanadium 199 10.0 ug/L 200 100 80-120 Zinc 208 10.0 ug/L 200 104 80-120 Matrix Spike (911313021-MS3) Prepared: 04/11/2019 13:38 Analyzed: 04/16/2019 11:59 111 Source: CC04949-06 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 181 10.0 ug/L 200 7.60 U 91 75-125 Barium 210 10.0 ug/L 200 10.7 100 75-125 Beryllium 20.2 1.00 ug/L 20.0 0.160 U 101 75-125 Cadmium 19.5 1.00 ug/L 20.0 0.360 U 98 75-125 Chromium 195 10.0 ug/L 200 1.40 U 97 75-125 Cobalt 199 10.0 ug/L 200 1.40 U 99 75-125 Copper 201 10.0 ug/L 200 1.60 U 101 75-125 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 45 Of 68 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 9D11021 - EPA 3005A - Continued Matrix Spike (9D13021-MS3) Continued Prepared: 04/11/2019 13:38 Analyzed: 04/16/2019 11:59 Source: CC04949-06 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Lead 197 10.0 ug/L 200 3.10 U 99 75-125 Nickel 202 10.0 ug/L 200 2.20 U 101 75-125 Selenium 191 10.0 ug/L 200 6.20 U 95 75-125 Silver 198 10.0 ug/L 200 1.90 U 99 75-125 Vanadium 196 10.0 ug/L 200 1.40 U 98 75-125 Zinc 205 10.0 ug/L 200 4.40 U 102 75-125 Matrix Spike Dup (9D13021-MSD1) Prepared: 04/11/2019 13:38 Analyzed: 04/16/2019 12:01 Source: CC04949-06 Spike Source %REC RPD Analvte Result Flaq Q Units Level Result %REC Limits RPD Limit Notes Arsenic 179 10.0 ug/L 200 7.60 U 89 75-125 1 20 Barium 209 10.0 ug/L 200 10.7 99 75-125 0.5 20 Beryllium 20.1 1.00 ug/L 20.0 0.160 U 100 75-125 0.5 20 Cadmium 19.3 1.00 ug/L 20.0 0.360 U 97 75-125 1 20 Chromium 193 10.0 ug/L 200 1.40 U 97 75-125 0.8 20 Cobalt 198 10.0 ug/L 200 1.40 U 99 75-125 0.2 20 Copper 198 10.0 ug/L 200 1.60 U 99 75-125 2 20 Lead 195 10.0 ug/L 200 3.10 U 98 75-125 1 20 Nickel 201 10.0 ug/L 200 2.20 U 101 75-125 0.6 20 Selenium 193 10.0 ug/L 200 6.20 U 97 75-125 1 20 Silver 194 10.0 ug/L 200 1.90 U 97 75-125 2 20 Vanadium 194 10.0 ug/L 200 1.40 U 97 75-125 0.9 20 Zinc 204 10.0 ug/L 200 4.40 U 102 75-125 0.6 20 Post Spike (9D11021-PSI) Prepared: 04/11/2019 13:38 Analyzed: 04/16/2019 12:04 Source: CC04949-06 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 0.175 0.0100 mg/L 0.200 -0.0260 87 80-120 Barium 0.201 0.0100 mg/L 0.200 0.0107 95 80-120 Beryllium 0.0193 0.00100 mg/L 0.0200 9.45E-5 96 80-120 Cadmium 0.0188 0.00100 mg/L 0.0200 -3.03E-5 94 80-120 Chromium 0.187 0.0100 mg/L 0.200 0.000266 93 80-120 Cobalt 0.191 0.0100 mg/L 0.200 0.000553 95 80-120 Copper 0.189 0.0100 mg/L 0.200 -0.000561 95 80-120 Lead 0.189 0.0100 mg/L 0.200 0.00202 93 80-120 Nickel 0.195 0.0100 mg/L 0.200 0.00116 97 80-120 Selenium 0.185 0.0100 mg/L 0.200 -0.0104 93 80-120 Silver 0.207 0.0100 mg/L 0.200 -0.000378 103 80-120 Vanadium 0.188 0.0100 mg/L 0.200 0.000109 94 80-120 Zinc 0.197 0.0100 mg/L 0.200 0.00207 97 80-120 Batch 9D16007 - EPA 3005A Blank (9D16007-BLK1) Prepared: 04/16/2019 08:41 Analyzed: 04/18/2019 12:02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 0.370 U 1.00 ug/L Thallium 0.110 U 1.00 ug/L FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 46 Of 68 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 9D16007 - EPA 3005A - Continued LCS (9D16007-BSI) Prepared: 04/16/2019 08:41 Analyzed: 04/18/2019 12:10 Spike Source %REC RPD Analvte Result Flag Q Units Level Result %REC Limits RPD Limit Notes Antimony 19.4 1.00 ug/L 20.0 97 80-120 Thallium 19.3 1.00 ug/L 20.0 96 80-120 Matrix Spike (9D16007-MS1) Prepared: 04/16/2019 08:41 Analyzed: 04/18/2019 12:15 Source: CCO5817-02 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Antimony 39.6 2.00 ug/L 40.0 0.740 U 99 75-125 Thallium 37.6 2.00 ug/L 40.0 0.220 U 94 75-125 Matrix Spike Dup (9D16007-MSD1) Prepared: 04/16/2019 08:41 Analyzed: 04/18/2019 12:33 Source: CC05817-02 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Antimony 36.4 2.00 ug/L 40.0 0.740 U 91 75-125 8 20 Thallium 35.0 2.00 ug/L 40.0 0.220 U 88 75-125 7 20 Post Spike (9D36007-PS3) Prepared: 04/16/2019 08:41 Analyzed: 04/18/2019 12:37 Source: CCO5817-02 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Antimony 21.0 1.00 ug/L 20.0 0.0186 105 75-125 Thallium 19.9 1.00 ug/L 20.0 0.000729 99 75-125 Batch 9D18011 - EPA 3005A Blank (9D18011-BLK1) Prepared: 04/18/2019 08:14 Analyzed: 04/22/2019 10:42 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Antimony 0.370 U 1.00 ug/L Thallium 0.110 U 1.00 ug/L LCS (9D38011-BS1) Prepared: 04/18/2019 08:14 Analyzed: 04/22/2019 10:51 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Antimony 20.1 1.00 ug/L 20.0 101 80-120 Thallium 19.8 1.00 ug/L 20.0 99 80-120 Matrix Spike (9D18031-MS3) Prepared: 04/18/2019 08:14 Analyzed: 04/22/2019 10:56 Source: CCO5103-10 Spike Source %REC RPD Analvte Result Flag Q Units Level Result %REC Limits RPD Limit Notes Antimony 41.5 2.00 ug/L 40.0 0.902 101 75-125 Thallium 39.2 2.00 ug/L 40.0 0.220 U 98 75-125 Matrix Spike Dup (9D18011-MSDI) Prepared: 04/18/2019 08:14 Analyzed: 04/22/2019 11:00 Source: CCO5103-10 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Antimony 42.0 2.00 ug/L 40.0 0.902 103 75-125 1 20 Thallium 39.3 2.00 ug/L 40.0 0.220 U 98 75-125 0.1 20 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 47 Of 68 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 9D18011 - EPA 3005A - Continued Post Spike (9D38011-PS3) Prepared: 04/18/2019 08:14 Analyzed: 04/22/2019 11:05 Source: CCO5103-10 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 21.2 1.00 ug/L 20.0 0.451 104 75-125 Thallium 20.3 1.00 ug/L 20.0 0.0178 101 75-125 Batch 9DI8039 - EPA 3005A Blank (9D18039-BLK1) Prepared: 04/18/2019 16:07 Analyzed: 04/19/2019 12:27 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 0.370 U 1.00 ug/L Thallium 0.110 U 1.00 ug/L LCS (9D38039-BSI) Prepared: 04/18/2019 16:07 Analyzed: 04/19/2019 12:36 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 18.2 1.00 ug/L 20.0 91 80-120 Thallium 18.6 1.00 ug/L 20.0 93 80-120 Matrix Spike (9D18039-MS3) Prepared: 04/18/2019 16:07 Analyzed: 04/19/2019 12:40 Source: CC06034-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 36.6 2.00 ug/L 40.0 0.740 U 92 75-125 Thallium 35.8 2.00 ug/L 40.0 0.220 U 90 75-125 Matrix Spike Dup (9D18039-MSDI) Prepared: 04/18/2019 16:07 Analyzed: 04/19/2019 12:44 Source: CC06034-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 37.4 2.00 ug/L 40.0 0.740 U 94 75-125 2 20 Thallium 36.9 2.00 ug/L 40.0 0.220 U 92 75-125 3 20 Post Spike (9D18039-PSI) Prepared: 04/18/2019 16:07 Analyzed: 04/19/2019 12:49 Source: CC06034-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 20.2 1.00 ug/L 20.0 0.0231 101 75-125 Thallium 19.7 1.00 ug/L 20.0 0.00406 98 75-125 Batch 9DI8043 - EPA 3005A Blank (9D18043-BLK3) Prepared: 04/18/2019 16:33 Analyzed: 04/22/2019 09:51 Analvte Result Flaq POL Units Arsenic 7.60 U 10.0 ug/L Barium 1.10 U 10.0 ug/L Beryllium 0.160 U 1.00 ug/L Cadmium 0.360 U 1.00 ug/L Chromium 1.40 U 10.0 ug/L Cobalt 1.40 U 10.0 ug/L Copper 1.60 U 10.0 ug/L Lead 3.10 U 10.0 ug/L Spike Source %REC RPD Level Result %REC Limits RPD Limit Notes FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 48 Of 68 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 9DIS043 - EPA 3005A - Continued Blank (9D18043-BLK3) Continued Prepared: 04/18/2019 16:33 Analyzed: 04/22/2019 09:51 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Nickel 2.20 U 10.0 ug/L Selenium 10.0 10.0 ug/L Silver 1.90 U 10.0 ug/L Vanadium 1.40 U 10.0 ug/L Zinc 4.40 U 10.0 ug/L LCS (91318043-BSI) Prepared: 04/18/2019 16:33 Analyzed: 04/22/2019 10:02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 211 10.0 ug/L 200 105 80-120 Barium 206 10.0 ug/L 200 103 80-120 Beryllium 21.4 1.00 ug/L 20.0 107 80-120 Cadmium 20.4 1.00 ug/L 20.0 102 80-120 Chromium 208 10.0 ug/L 200 104 80-120 Cobalt 211 10.0 ug/L 200 106 80-120 Copper 208 10.0 ug/L 200 104 80-120 Lead 206 10.0 ug/L 200 103 80-120 Nickel 209 10.0 ug/L 200 105 80-120 Selenium 226 B 10.0 ug/L 200 113 80-120 Silver 213 10.0 ug/L 200 107 80-120 Vanadium 206 10.0 ug/L 200 103 80-120 Zinc 208 10.0 ug/L 200 104 80-120 Matrix Spike (9D18043-MS3) Prepared: 04/18/2019 16:33 Analyzed: 04/22/2019 10:05 Source: CCO5898-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 207 10.0 ug/L 200 7.60 U 104 75-125 Barium 705 10.0 ug/L 200 531 87 75-125 Beryllium 20.6 1.00 ug/L 20.0 0.160 U 103 75-125 Cadmium 19.8 1.00 ug/L 20.0 0.360 U 99 75-125 Chromium 200 10.0 ug/L 200 1.40 U 100 75-125 Cobalt 203 10.0 ug/L 200 1.40 U 102 75-125 Copper 201 10.0 ug/L 200 1.60 U 101 75-125 Lead 202 10.0 ug/L 200 3.10 U 101 75-125 Nickel 207 10.0 ug/L 200 2.20 U 104 75-125 Selenium 209 B 10.0 ug/L 200 6.20 U 105 75-125 Silver 201 10.0 ug/L 200 1.90 U 100 75-125 Vanadium 200 10.0 ug/L 200 1.40 U 100 75-125 Zinc 216 10.0 ug/L 200 4.40 U 108 75-125 Matrix Spike Dup (91318043-MS131) Prepared: 04/18/2019 16:33 Analyzed: 04/22/2019 10:07 Source: CC05898-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 201 10.0 ug/L 200 7.60 U 100 75-125 3 20 Barium 703 10.0 ug/L 200 531 86 75-125 0.4 20 Beryllium 20.8 1.00 ug/L 20.0 0.160 U 104 75-125 1 20 Cadmium 20.0 1.00 ug/L 20.0 0.360 U 100 75-125 1 20 Chromium 201 10.0 ug/L 200 1.40 U 101 75-125 0.4 20 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 49 Of 68 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 9D18043 - EPA 3005A - Continued Matrix Spike Dup (9D18043-MSDI) Continued Prepared: 04/18/2019 16:33 Analyzed: 04/22/2019 10:07 Source: CCO5898-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Cobalt 203 10.0 ug/L 200 1.40 U 102 75-125 0.008 20 Copper 204 10.0 ug/L 200 1.60 U 102 75-125 1 20 Lead 199 10.0 ug/L 200 3.10 U 99 75-125 1 20 Nickel 206 10.0 ug/L 200 2.20 U 103 75-125 0.5 20 Selenium 210 B 10.0 ug/L 200 6.20 U 105 75-125 0.0008 20 Silver 203 10.0 ug/L 200 1.90 U 102 75-125 1 20 Vanadium 202 10.0 ug/L 200 1.40 U 101 75-125 1 20 Zinc 213 10.0 ug/L 200 4.40 U 107 75-125 1 20 Post Spike (9D18043-PS1) Prepared: 04/18/2019 16:33 Analyzed: 04/22/2019 10:09 Source: CCO5898-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 0.197 0.0100 mg/L 0.200 -0.0109 98 80-120 Barium 0.716 0.0100 mg/L 0.200 0.531 93 80-120 Beryllium 0.0223 0.00100 mg/L 0.0200 -4.27E-5 112 80-120 Cadmium 0.0204 0.00100 mg/L 0.0200 -0.000233 102 80-120 Chromium 0.213 0.0100 mg/L 0.200 0.000985 106 80-120 Cobalt 0.209 0.0100 mg/L 0.200 -0.000239 105 80-120 Copper 0.218 0.0100 mg/L 0.200 0.000909 109 80-120 Lead 0.210 0.0100 mg/L 0.200 1.10E-5 105 80-120 Nickel 0.208 0.0100 mg/L 0.200 0.00136 103 80-120 Selenium 0.219 B 0.0100 mg/L 0.200 -0.00225 109 80-120 Silver 0.239 0.0100 mg/L 0.200 -0.000138 120 80-120 Vanadium 0.215 0.0100 mg/L 0.200 -0.000799 107 80-120 Zinc 0.212 0.0100 mg/L 0.200 0.00388 104 80-120 Batch 9D19002 - EPA 3005A Blank (9D19002-BLK3) Prepared: 04/19/2019 07:46 Analyzed: 04/22/2019 12:07 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 7.60 U 10.0 ug/L Barium 1.10 U 10.0 ug/L Beryllium 0.160 U 1.00 ug/L Cadmium 0.361 3 1.00 ug/L Chromium 1.40 U 10.0 ug/L Cobalt 1.40 U 10.0 ug/L Copper 1.60 U 10.0 ug/L Lead 3.10 U 10.0 ug/L Nickel 2.20 U 10.0 ug/L Selenium 6.20 U 10.0 ug/L Silver 1.90 U 10.0 ug/L Vanadium 1.40 U 10.0 ug/L Zinc 4.40 U 10.0 ug/L LCS (9D19002-BSI) Prepared: 04/19/2019 07:46 Analyzed: 04/22/2019 12:12 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 217 10.0 ug/L 200 108 80-120 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 50 Of 68 0Nk"q09 www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 9D19002 - EPA 3005A - Continued LCS (9D19002-BS1) Continued Prepared: 04/19/2019 07:46 Analyzed: 04/22/2019 12:12 Spike Source %REC RPD Analvte Result Flao POL Units Level Result %REC Limits RPD Limit Notes Barium 209 10.0 ug/L 200 105 80-120 Beryllium 21.6 1.00 ug/L 20.0 108 80-120 Cadmium 21.3 1.00 ug/L 20.0 106 80-120 Chromium 212 10.0 ug/L 200 106 80-120 Cobalt 217 10.0 ug/L 200 108 80-120 Copper 212 10.0 ug/L 200 106 80-120 Lead 212 10.0 ug/L 200 106 80-120 Nickel 214 10.0 ug/L 200 107 80-120 Selenium 229 10.0 ug/L 200 114 80-120 Silver 217 10.0 ug/L 200 108 80-120 Vanadium 208 10.0 ug/L 200 104 80-120 Zinc 216 10.0 ug/L 200 108 80-120 Matrix Spike (911319002-MSi) Prepared: 04/19/2019 07:46 Analyzed: 04/22/2019 12:46 Source: CCO5934-04 Spike Source %REC RPD Analvte Result Flaa POL Units Level Result %REC Limits RPD Limit Notes Arsenic 191 10.0 ug/L 200 7.60 U 96 75-125 Barium 309 10.0 ug/L 200 104 103 75-125 Beryllium 20.8 1.00 ug/L 20.0 0.160 U 104 75-125 Cadmium 20.3 1.00 ug/L 20.0 0.360 U 101 75-125 Chromium 203 10.0 ug/L 200 1.87 101 75-125 Cobalt 211 10.0 ug/L 200 3.19 104 75-125 Copper 207 10.0 ug/L 200 4.16 101 75-125 Lead 204 10.0 ug/L 200 3.10 U 102 75-125 Nickel 214 10.0 ug/L 200 5.40 104 75-125 Selenium 220 10.0 ug/L 200 6.20 U 110 75-125 Silver 201 10.0 ug/L 200 1.90 U 101 75-125 Vanadium 207 10.0 ug/L 200 5.77 101 75-125 Zinc 217 10.0 ug/L 200 4.53 106 75-125 Matrix Spike Dup (9D19002-MSD1) Prepared: 04/19/2019 07:46 Analyzed: 04/22/2019 12:48 Source: CCO5934-04 Spike Source %REC RPD Analvte Ress-It Flaa POL Units Level Result %REC Limits RPD Limit Notes Arsenic 191 10.0 ug/L 200 7.60 U 95 75-125 0.2 20 Barium 306 10.0 ug/L 200 104 101 75-125 0.8 20 Beryllium 20.5 1.00 ug/L 20.0 0.160 U 102 75-125 2 20 Cadmium 20.0 1.00 ug/L 20.0 0.360 U 100 75-125 1 20 Chromium 203 10.0 ug/L 200 1.87 100 75-125 0.1 20 Cobalt 210 10.0 ug/L 200 3.19 103 75-125 0.6 20 Copper 205 10.0 ug/L 200 4.16 101 75-125 0.6 20 Lead 205 10.0 ug/L 200 3.10 U 103 75-125 0.6 20 Nickel 212 10.0 ug/L 200 5.40 103 75-125 1 20 Selenium 208 10.0 ug/L 200 6.20 U 104 75-125 5 20 Silver 202 10.0 ug/L 200 1.90 U 101 75-125 0.2 20 Vanadium 206 10.0 ug/L 200 5.77 100 75-125 0.4 20 Zinc 215 10.0 ug/L 200 4.53 105 75-125 1 20 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 51 Of 68 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 9D19002 - EPA 3005A - Continued Post Spike (9D39002-PS3) Prepared: 04/19/2019 07:46 Analyzed: 04/22/2019 12:51 Source: CCO5934-04 Spike Source %REC Analvte Result Flaq POL Units Level Result %REC Limits RPD Arsenic 0.193 0.0100 mg/L 0.200 -0.0291 97 80-120 Barium 0.309 0.0100 mg/L 0.200 0.104 102 80-120 Beryllium 0.0208 0.00100 mg/L 0.0200 -9.19E-5 104 80-120 Cadmium 0.0203 0.00100 mg/L 0.0200 -0.000125 101 80-120 Chromium 0.202 0.0100 mg/L 0.200 0.00187 100 80-120 Cobalt 0.209 0.0100 mg/L 0.200 0.00319 103 80-120 Copper 0.208 0.0100 mg/L 0.200 0.00416 102 80-120 Lead 0.204 0.0100 mg/L 0.200 -0.00163 102 80-120 Nickel 0.213 0.0100 mg/L 0.200 0.00540 104 80-120 Selenium 0.209 0.0100 mg/L 0.200 -0.00889 105 80-120 Silver 0.216 0.0100 mg/L 0.200 0.000238 108 80-120 Vanadium 0.207 0.0100 mg/L 0.200 0.00577 100 80-120 Zinc 0.217 0.0100 mg/L 0.200 0.00453 106 80-120 Batch 9D20013 - EPA 3005A Blank (9D20013-BLK3) Prepared: 04/20/2019 13:50 Analyzed: 04/23/2019 12:09 RPD Limit Notes Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 7.60 U 10.0 ug/L Barium 1.10 U 10.0 ug/L Beryllium 0.160 U 1.00 ug/L Cadmium 0.360 U 1.00 ug/L Chromium 1.40 U 10.0 ug/L Cobalt 1.40 U 10.0 ug/L Copper 1.60 U 10.0 ug/L Lead 3.10 U 10.0 ug/L Nickel 2.20 U 10.0 ug/L Selenium 6.20 U 10.0 ug/L Silver 1.90 U 10.0 ug/L Vanadium 1.40 U 10.0 ug/L Zinc 4.40 U 10.0 ug/L LCS (9D20013-BSI) Prepared: 04/20/2019 13:50 Analyzed: 04/23/2019 12:14 Spike Source %REC Analvte Result Flaq POL Units Level Result %REC Limits Arsenic 234 10.0 ug/L 200 117 80-120 Barium 222 10.0 ug/L 200 111 80-120 Beryllium 23.2 1.00 ug/L 20.0 116 80-120 Cadmium 22.5 1.00 ug/L 20.0 112 80-120 Chromium 225 10.0 ug/L 200 112 80-120 Cobalt 232 10.0 ug/L 200 116 80-120 Copper 220 10.0 ug/L 200 110 80-120 Lead 224 10.0 ug/L 200 112 80-120 Nickel 224 10.0 ug/L 200 112 80-120 Selenium 218 10.0 ug/L 200 109 80-120 Silver 226 10.0 ug/L 200 113 80-120 Vanadium 221 10.0 ug/L 200 110 80-120 Zinc 231 10.0 ug/L 200 115 80-120 RPD RPD Limit Notes FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full Page 52 of 68 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 9D20013 - EPA 3005A - Continued Matrix Spike (9D20013-MS3) Prepared: 04/20/2019 13:50 Analyzed: 04/23/2019 12:17 Source: CCO5219-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 226 10.0 ug/L 200 7.60 U 113 75-125 Barium 249 10.0 ug/L 200 40.6 104 75-125 Beryllium 22.1 1.00 ug/L 20.0 0.160 U 110 75-125 Cadmium 21.7 1.00 ug/L 20.0 0.360 U 108 75-125 Chromium 220 10.0 ug/L 200 5.96 107 75-125 Cobalt 225 10.0 ug/L 200 4.75 110 75-125 Copper 217 10.0 ug/L 200 7.27 105 75-125 Lead 216 10.0 ug/L 200 5.24 105 75-125 Nickel 217 10.0 ug/L 200 8.04 104 75-125 Selenium 217 10.0 ug/L 200 6.20 U 109 75-125 Silver 213 10.0 ug/L 200 1.90 U 106 75-125 Vanadium 234 10.0 ug/L 200 20.0 107 75-125 Zinc 224 10.0 ug/L 200 9.80 107 75-125 Matrix Spike Dup (9D20013-MSD1) Prepared: 04/20/2019 13:50 Analyzed: 04/23/2019 12:55 Source: CCO5219-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 227 10.0 ug/L 200 7.60 U 114 75-125 0.8 20 Barium 268 10.0 ug/L 200 40.6 114 75-125 7 20 Beryllium 21.9 1.00 ug/L 20.0 0.160 U 109 75-125 0.8 20 Cadmium 22.3 1.00 ug/L 20.0 0.360 U 112 75-125 3 20 Chromium 222 10.0 ug/L 200 5.96 108 75-125 1 20 Cobalt 232 10.0 ug/L 200 4.75 114 75-125 3 20 Copper 220 10.0 ug/L 200 7.27 107 75-125 2 20 Lead 222 10.0 ug/L 200 5.24 109 75-125 3 20 Nickel 235 10.0 ug/L 200 8.04 114 75-125 8 20 Selenium 225 10.0 ug/L 200 6.20 U 112 75-125 3 20 Silver 211 10.0 ug/L 200 1.90 U 105 75-125 0.9 20 Vanadium 234 10.0 ug/L 200 20.0 107 75-125 0.2 20 Zinc 242 10.0 ug/L 200 9.80 116 75-125 8 20 Post Spike (9D20013-PS1) Prepared: 04/20/2019 13:50 Analyzed: 04/23/2019 12:57 Source: CCO5219-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 0.228 0.0100 mg/L 0.200 0.00230 113 80-120 Barium 0.254 0.0100 mg/L 0.200 0.0406 107 80-120 Beryllium 0.0223 0.00100 mg/L 0.0200 -0.000634 111 80-120 Cadmium 0.0224 0.00100 mg/L 0.0200 0.000128 111 80-120 Chromium 0.224 0.0100 mg/L 0.200 0.00596 109 80-120 Cobalt 0.232 0.0100 mg/L 0.200 0.00475 113 80-120 Copper 0.223 0.0100 mg/L 0.200 0.00727 108 80-120 Lead 0.220 0.0100 mg/L 0.200 0.00524 107 80-120 Nickel 0.224 0.0100 mg/L 0.200 0.00804 108 80-120 Selenium 0.222 0.0100 mg/L 0.200 -0.00993 111 80-120 Silver 0.232 0.0100 mg/L 0.200 -0.000572 116 80-120 Vanadium 0.237 0.0100 mg/L 0.200 0.0200 109 80-120 Zinc 0.243 0.0100 mg/L 0.200 0.00980 117 80-120 Batch 9D22021 - EPA 3005A FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 53 Of 68 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 9D22021 - EPA 3005A - Continued Blank (9D22021-BLK3) Prepared: 04/22/2019 12:03 Analyzed: 04/24/2019 16:17 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 7.60 U 10.0 ug/L Barium 1.10 U 10.0 ug/L Beryllium 0.160 U 1.00 ug/L Cadmium 0.360 U 1.00 ug/L Chromium 1.40 U 10.0 ug/L Cobalt 1.40 U 10.0 ug/L Copper 1.60 U 10.0 ug/L Lead 3.10 U 10.0 ug/L Nickel 2.20 U 10.0 ug/L Selenium 6.20 U 10.0 ug/L Silver 1.90 U 10.0 ug/L Vanadium 1.40 U 10.0 ug/L Zinc 4.40 U 10.0 ug/L LCS (91322021-BSI) Prepared: 04/22/2019 12:03 Analyzed: 04/24/2019 16:25 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 203 10.0 ug/L 200 102 80-120 Barium 203 10.0 ug/L 200 102 80-120 Beryllium 20.9 1.00 ug/L 20.0 105 80-120 Cadmium 19.7 1.00 ug/L 20.0 99 80-120 Chromium 206 10.0 ug/L 200 103 80-120 Cobalt 208 10.0 ug/L 200 104 80-120 Copper 210 10.0 ug/L 200 105 80-120 Lead 199 10.0 ug/L 200 99 80-120 Nickel 204 10.0 ug/L 200 102 80-120 Selenium 204 10.0 ug/L 200 102 80-120 Silver 220 10.0 ug/L 200 110 80-120 Vanadium 205 10.0 ug/L 200 102 80-120 Zinc 201 10.0 ug/L 200 101 80-120 Matrix Spike (9D22021-MS1) Prepared: 04/22/2019 12:03 Analyzed: 04/24/2019 16:28 Source: CCO2853-05 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 202 10.0 ug/L 200 7.60 U 101 75-125 Barium 233 10.0 ug/L 200 28.7 102 75-125 Beryllium 21.4 1.00 ug/L 20.0 0.160 U 107 75-125 Cadmium 20.0 1.00 ug/L 20.0 0.360 U 100 75-125 Chromium 208 10.0 ug/L 200 1.40 U 104 75-125 Cobalt 210 10.0 ug/L 200 1.40 U 105 75-125 Copper 209 10.0 ug/L 200 1.70 104 75-125 Lead 204 10.0 ug/L 200 3.10 U 102 75-125 Nickel 205 10.0 ug/L 200 2.20 U 103 75-125 Selenium 209 10.0 ug/L 200 6.20 U 105 75-125 Silver 207 10.0 ug/L 200 1.90 U 103 75-125 Vanadium 207 10.0 ug/L 200 1.40 U 104 75-125 Zinc 219 10.0 ug/L 200 12.9 103 75-125 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 54 Of G8 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 9D22021 - EPA 3005A - Continued Matrix Spike Dup (9D22021-MSD1) Prepared: 04/22/2019 12:03 Analyzed: 04/24/2019 16:36 Source: CCO2853-05 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 206 10.0 ug/L 200 7.60 U 103 75-125 2 20 Barium 237 10.0 ug/L 200 28.7 104 75-125 1 20 Beryllium 21.9 1.00 ug/L 20.0 0.160 U 109 75-125 2 20 Cadmium 20.4 1.00 ug/L 20.0 0.360 U 102 75-125 2 20 Chromium 211 10.0 ug/L 200 1.40 U 106 75-125 1 20 Cobalt 212 10.0 ug/L 200 1.40 U 106 75-125 1 20 Copper 216 10.0 ug/L 200 1.70 107 75-125 3 20 Lead 206 10.0 ug/L 200 3.10 U 103 75-125 0.8 20 Nickel 218 10.0 ug/L 200 2.20 U 109 75-125 6 20 Selenium 206 10.0 ug/L 200 6.20 U 103 75-125 1 20 Silver 214 10.0 ug/L 200 1.90 U 107 75-125 3 20 Vanadium 211 10.0 ug/L 200 1.40 U 106 75-125 2 20 Zinc 242 10.0 ug/L 200 12.9 115 75-125 10 20 Post Spike (9D22021-PSI) Prepared: 04/22/2019 12:03 Analyzed: 04/24/2019 16:38 Source: CCO2853-05 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 0.195 0.0100 mg/L 0.200 -0.00563 98 80-120 Barium 0.229 0.0100 mg/L 0.200 0.0287 100 80-120 Beryllium 0.0211 0.00100 mg/L 0.0200 7.08E-5 105 80-120 Cadmium 0.0195 0.00100 mg/L 0.0200 -0.000166 97 80-120 Chromium 0.204 0.0100 mg/L 0.200 0.000581 102 80-120 Cobalt 0.205 0.0100 mg/L 0.200 -0.000967 103 80-120 Copper 0.207 0.0100 mg/L 0.200 0.00170 103 80-120 Lead 0.198 0.0100 mg/L 0.200 -0.000386 99 80-120 Nickel 0.201 0.0100 mg/L 0.200 0.000762 100 80-120 Selenium 0.196 0.0100 mg/L 0.200 -0.00582 98 80-120 Silver 0.214 0.0100 mg/L 0.200 -0.000568 107 80-120 Vanadium 0.205 0.0100 mg/L 0.200 -0.000317 102 80-120 Zinc 0.213 0.0100 mg/L 0.200 0.0129 100 80-120 Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Batch 9D11039 - EPA 5030E MS Blank (9DI1039-BLKI) Prepared: 04/11/2019 14:21 Analyzed: 04/12/2019 00:03 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 1.2 U 2.0 ug/L Toluene-d8 5.4 ug/L 5.00 108 75-125 LCS (9D13039-BS1) Prepared: 04/11/2019 14:21 Analyzed: 04/11/2019 22:49 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 27 2.0 ug/L 25.0 106 80-133 Toluene-d8 5.4 ug/L 5.00 107 75-125 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 55 Of 68 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Batch 9D11039 - EPA 5030E MS - Continued LCS Dup (9D31039-BSD3) Prepared: 04/11/2019 14:21 Analyzed: 04/11/2019 23:26 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 28 2.0 ug/L 25.0 113 80-133 6 19 QM-10 Toluene-d8 5.2 U91L 5.00 104 75-125 QM-10 Batch 9D22022 - EPA 5030E MS Blank (91332022-BLK1) Prepared: 04/12/2019 00:00 Analyzed: 04/12/2019 12:08 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 1.2 U 2.0 ug/L Toluene-d8 5.1 ug/L 5.00 102 75-125 LCS (9D12022-BS1) Prepared: 04/12/2019 00:00 Analyzed: 04/12/2019 11:02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 26 2.0 ug/L 25.0 103 80-133 Toluene-d8 5.4 ug/L 5.00 108 75-125 LCS Dup (911312022-BSD1) Prepared: 04/12/2019 00:00 Analyzed: 04/12/2019 11:34 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 27 2.0 ug/L 25.0 108 80-133 5 19 QM-10 Toluene-d8 5.4 ug/L 5.00 107 75-125 QM-10 Batch 9D15031 - EPA 5030E MS Blank (9D15031-BLK3) Prepared: 04/15/2019 00:00 Analyzed: 04/15/2019 12:06 Spike Source %REC RPD Analvte Result Flaa POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 1.2 U 2.0 ug/L Toluene-d8 5.2 ug/L 5.00 104 75-125 LCS (911)15031-BSI) Prepared: 04/15/2019 00:00 Analyzed: 04/15/2019 11:05 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 25 2.0 ug/L 25.0 98 80-133 Toluene-d8 5.1 ug/L 5.00 102 75-125 LCS Dup (9D15031-BSD1) Prepared: 04/15/2019 00:00 Analyzed: 04/15/2019 11:34 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 25 2.0 ug/L 25.0 98 80-133 0.3 19 QM-10 Toluene-& 5.5 ug/L 5.00 110 75-125 QM-10 Batch 9D18049 - EPA 5030E MS FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 56 Of 68 0Nk"q09 www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Batch 9DI8049 - EPA 5030B MS - Continued Blank (9D18049-BLKi) Prepared: 04/18/2019 00:00 Analyzed: 04/18/2019 11:29 Analvte 1,4-Dioxane Result Flao 1.2 U POL Units 2.0 ug/L Spike Source Level Result %REC %REC Limits RPD RPD Limit Notes Toluene-& 5.4 u9/L 5.00 107 75-125 LCS (911)18049-BS1) Prepared: 04/18/2019 00:00 Analyzed: 04/18/2019 10:23 Analvte 1,4-Dioxane Result Flaq 26 POL Units 2.0 ug/L Spike Source Level Result 25.0 %REC %REC Limi RPD 103 80-133 RPD Limit Notes Toluene-& 5.2 u9/L 5.00 105 75-125 LCS Dup (9D18049-BSD1) Prepared: 04/18/2019 00:00 Analyzed: 04/18/2019 10:57 Spike Source %REC RPD Analvte Result Flao POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 26 2.0 ug/L 25.0 105 80-133 2 19 QM-10 Toluene-& 5.8 u91L 5.00 117 75-125 QM-10 Batch 9D18055 - EPA 5030E MS Blank (9D18055-BLK3) Prepared: 04/18/2019 14:22 Analyzed: 04/18/2019 23:53 Spike Source %REC RPD Analvte Result Flaq POL Uni Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 1.2 U 2.0 ug/L Toluene-d8 5.4 u9/L 5.00 109 75-125 LCS (91318055-BS1) Prepared: 04/18/2019 14:22 Analyzed: 04/18/2019 22:44 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 26 2.0 ug/L 25.0 105 80-133 Toluene-& 5.7 u9/L 5.00 115 75-125 LCS Dup (911318055-BSD1) Prepared: 04/18/2019 14:22 Analyzed: 04/18/2019 23:17 Spike Source %REC RPD Analvte Result Flaa POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 28 2.0 ug/L 25.0 114 80-133 7 19 QM-10 Toluene-d8 5.3 u9/L 5.00 105 75-125 QM-10 Batch 9D19047 - EPA 5030E MS Blank (9D19047-BLK3) Prepared: 04/19/2019 00:00 Analyzed: 04/19/2019 13:56 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 1.2 U 2.0 ug/L Toluene-& 5.8 u9/L 5.00 115 75-125 LCS (911319047-BS1) Prepared: 04/19/2019 00:00 Analyzed: 04/19/2019 12:50 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 57 Of 68 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Batch 9D19047 - EPA 5030E MS - Continued LCS (9D19047-BSI) Continued Prepared: 04/19/2019 00:00 Analyzed: 04/19/2019 12:50 Analvte Result Flaq 1,4-Dioxane 25 POL Units 2.0 ug/L Spike Source Level Result 25.0 %REC %REC Limits RPD 101 80-133 RPD Limit Notes Toluene-d8 5.0 u91L 5.00 99 75-125 LCS Dup (9D19047-BSD1) Prepared: 04/19/2019 00:00 Analyzed: 04/19/2019 13:23 Analvte Result Flaq 1,4-Dioxane 26 POL Units 2.0 ug/L Spike Source Level Result 25.0 %REC %REC Limits RPD 105 80-133 3 RPD Limit Notes 19 QM-10 Toluene-d8 5.1 u9/L 5.00 101 75-125 QM-10 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 58 Of 68 (� �Eo www.encolabs.com FLAGS/NOTES AND DEFINITIONS B The analyte was detected in the associated method blank. D The sample was analyzed at dilution. J The reported value is between the laboratory method detection limit (MDL) and the laboratory method reporting limit (MRL), adjusted for actual sample preparation data and moisture content, where applicable. U The analyte was analyzed for but not detected to the level shown, adjusted for actual sample preparation data and moisture content, where applicable. E The concentration indicated for this analyte is an estimated value above the calibration range of the instrument. This value is considered an estimate. MRL Method Reporting Limit. The MRL is roughly equivalent to the practical quantitation limit (PQL) and is based on the low point of the calibration curve, when applicable, sample preparation factor, dilution factor, and, in the case of soil samples, moisture content. PQL PQL: Practical Quantitation Limit. The PQL presented is the laboratory MRL. N The analysis indicates the presence of an analyte for which there is presumptive evidence (85% or greater confidence) to make a "tentative identification". P Greater than 25% concentration difference was observed between the primary and secondary GC column. The lower concentration is reported. [CALC] Calculated analyte - MDL/MRL reported to the highest reporting limit of the component analyses. 0-01 This compound is a common laboratory contaminant. QB-02 The method blank contains analyte at a concentration above the MDL and/or greater than one-half the MRL. The analyte was not detected in the sample. QM-07 The spike recovery was outside acceptance limits for the MS and/or MSD. The batch was accepted based on acceptable LCS recovery. QM-10 LCS/LCSD were analyzed in place of MS/MSD. QS-03 Surrogate recovery outside acceptance limits QV-01 The associated continuing calibration verification standard exhibited high bias; since the result is ND, there is no impact. FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 59 of 68 a n � � m n. m a � Q. � W s 5 Em m 3 +A I S r g S m � m m ml a w A m s a w obi io � 2a 07 rr a 0 C a m d CD C Q f m IC 31 M, Iff I RIP V 119. -A' cn ✓CD cm U1 m' 0 a vi �w Pr w C PO 0 m o � a a 'n QFL w n n m ' a w 0 0 � o an m O v = o J C w-0 El [° 0 3 M Cl co r f- •+ R � � V h C/) Am a m x a v .,� Z r x v o } m in S7 ❑ v m a M -a N � o 8260D Appendix 1,82601) 37 Uanded.026CO SM ID m to Ag,As,Ba,Ss,Cd,Co,Cr,Cu,Nim Pb,Sb,Se Se,n.v Zn a_ Z f] c m � � 7 � = w o N V ((J a m ❑ -3 �o m w �nn ❑ v r 6 0 z W a @ m [C m LS D D-y yel y IG tom 0 X � in1 m Q_ gm 3 O 3 ci 1 CDs% m e CD 3 —4 I Q w p ° Nco Page 60 of 68 ^ a i Sample Preservation Verification ENC❑ Cary Work Order: CC05276 Project: Client: Golder Associates, Inc, (GO007) Project #: Logged In: 09-Apr-19 15:12 Logged By ENCO White Street LF-Phase 11 1668421.105 John C King Preservation Check Performed By: [ /1 Dateffime: CCO5276-01 L1'9 1q /_%/U Cant Type Pres (pH) pH Checked / pH Adjusted DateMr" Reagent Used/Comments Requirement In Control Adjusted A 250mLP+HNO3 <2 Y; I N 1 NA Y /0: 1 NA Reagent Name ID 1 2 pH Strip ID:� 1 Rea ent Name ID 3 4 Reacient Name ID 5 6 Page 61 of 68 C:IELM NT1Printlwko_PreservationC heck. rpt 1 n m � ro m m 3 l � r 3 a w ago 0 O m V m m �► w s m m w 3 m m W m � � m rym 6 � J n a n n � w Q m � o a w m c Q F cn y I h CA) 13) p z wa w w e. m m a Pr av .c. oa rs o a :3 0 C9 Z n n o z8r m m - W �a a a z A d T :r a} Tl a N N� C7 m N r r ■c Q { C r 1 - V ru 6 . - ° i r --1 -4 �J �-41 1-4 o N � o X x x X 826M Appendix 1,82600 - r Extended,82600 SIM ip 44 X X X IN ?{ Ae,6a,Be,Cd,Co,Cr,Cu,M,Pp,Sh,Se, 9,i1.Y C) Zn � v � w = m { o w m ? s J a � X � m � O 3 � _ s a. n ° r � � C CD a CD Q m `w iron A o � W C s� C cr N 3 o a N w c �. CDQ Page 62 of 68�T C Sample Preservation Verification ENCO Cary FJ\ICO Work Order: CC05934 Project: White Street LF-Phase 11 Client: Golder Associates, Inc. (GO007) Project#; 1668421.105 Lagged in: 11-Apr-19 14:57 Logged By: John C King Preservation Check Performed By: DatelTime: CCO5934-01 Cont Type Pres (pH) pH Checked 1 Requirement In Control pH Adjusted DaterFTMe Adjusted Reagent Used/Comments A 250mLP+HNO3 <2 I N I NA Y A! NA CC05934-02 Copt T e yp Pres (pH) Requirement pH Checked I In Control Date/Time pH Adjusted Adjusted Reagent Used/Comments A 250mLP+HNO3 <2 V 1 N I NA I YIN 1 NA CC059344403 Cont T e yp Pres (pH) Requirement JpH Checked I In Control ❑aterrime pH Adjusted Adjusted Reagent Used/Comments A 250mLP+HNO3 <2 J N I NA I Y I CN] 1 NA CC05934-04 Cont T e yp Pres (pH) Requirement pH Checked I In Control DatelTime pH Adjusted Adjusted Reagent Used/Comments A 250mLP+HNO3 <2 1 N I NA Y I ,NII NA CCd5934-06 Cont Type Pres (pH) Requirement pH Checked I n Control pH Adjusted DatelTime Adjusted Reagent Used/Comments A 250mLP+HNO3 [F] <2 I N I NA Y 1 ! NA Rea ent Name ID 1 2 pH Strip ID: C:\ELMNT1Print\w.ko—PreservationCheck.rpt Rea ent Name ID 3 4 Reagent Name ID 5 . 6 Page 63 of 68 o 2 V a, m mm E p ~ Lao, m C ({� CD E 0 y U mm X N L (n W a Q o� a !� ` r E E m E 0 �m z�CD `o � w +`i 4 �[ c 133 o C E u � W L N xN m O � O E c Z m v d m E �Q� 4 m m m x s `p' it L CD N U y Q C C tiry O V o� E �E E �0 A" Ira IV) V'SV � � Z p y� v e � w a c e E � m U � y N IL C N N N �cw Ol IS S Q� EL d N U c� e r roDIL H 'c a a Q V, a m m a E c 0 a LD 0 a Q " M m � ti 1 m Page 64 of 68 0 Z M a i E a y m COO 0 u vi R 0 Id C d 0 cc 0 w Q 0 ci LL 0 z a x U LLJ a 0 M 5 Z 0 R cc w Z 0 U J H Z W 2 Z 0 Ir 5 Z LU wl W o 0 � ` ri ri ru L2 m U �I .g g ` x _ W ¢ m ° a E \\\ 0 in J x Cl v QI r m E n JJfVVVV 8 � a U m � v st F m a= =m m m �d 0 z� � co ce 1�1 $ m y a yy _ c ¢ c y ¢ U ¢ v ro agilt_ = a V V► E E vi'R'LL'OS !G E ° ° z 0. b - o PH tlrlAI9o! y�6tl61%=i 409$9' LQ Tu"J4 009i@ r _ V m � J a g x DO t d Lrj 4 CD p s s p, E ,� ro C� N Al mN �� —9 E d z $' p� c �� u W � m h ►' .� W 0 a oFLt� a ¢ m in in a NN a p 'c E ¢ N U m O N LJ co r� V � � Cri N 0 vv�i P ``Yl►►r O Mt N N EG1� Q m m� a rja a 'E n � m E Page 65 of 68 �" Sample Preservation Verification ENCO Cary ENCO Work Order: CCO6034 Project: White Street LF-Phase II Client: Golder Associates, Inc. (GO007) Project#: 1668421.105 Logged In: 12-Apr-19 13:44 Logged By: Rachel An2(?_1 nis Preservation Check Performed By: � Date/Time: tic� 1 CCO6034-01 Cont Type Pres (PH) Requirement pH Checked / In Control PH Adjusted Date/Time Adiusted Reagent Used/Comments A 250mLP+HNO3 <2 Y ,Y N / NA Y / N) NA CC06034-02 Cant Type Pres (pH) pH Checked / pH Adjusted DateJTirne Reagent Used/Comments Requirement In Control Adjusted A 250mLP+HNO3 <2 Y11 N 1 NA Y( N NA CC06034-03 Cont Type Pres (PH) JpH Checked / pH Adjusted DatelTme Reagent Used/Comments Requirement 1rt Cont€ol Adjusted A 250mLP+HNO3 <2 Y N/ NA Y /e N NA CC06034-04 Cont Type Pres (pH) Requirement JpH Checked J to Control pH Adjusted Date/Time Adjusted Reagent Used/Comments A 250mLP+HNO3 <2 Y 11 N/ NA Y 1 N` I NA CC06034-05 Cont Type Pres (pH) pH Checked J pH Adjusted DatelTime Reagent Used/Comments Requirement In Control Adjusted A 250mLP+HNO3 <2 YN 1 NA Y I N)/ NA CC06034-06 Cant Type Pres (pH) Requirement pH Checked 1 In Control Datef ime pH Adjusted Adjusted Reagent Used/Comments A 250mLP+HNO3 [F] <2 Y N 1 NA Y .` NUJ NA CC06034-07 Cant Type Pres (pH) pH Checked / Requirement l Control pH Adjusted Date/Mme Adjusted Reagent Used/Comments A 250mLP+HNO3 IF] <2 �YJJ N I NA Y 1`. N ` NA CCO6034-08 Cont Type Pres (pH) €�H Checked 1 pH Adjusted DateM me Reagent Used/Comments Requirement , In Control Adjusted A 250mLP+HNO3 <2 Y / N J NA YIN NA Reagent Name ID 1 2 pH Strip ID: PH Strips C8J0741 C:lelmnt\PrirmVVT%W ..__._.._,___ A Rea ent Name ID 3 4 I-- Reacient Name 1 D 5 6 Page 66 of 68 0 cr 0 U LLI 0 U3 U ILL 0 Z a U (/ WM_ IL 0 a 0 ED Cc J Z 0 i LLB U) Z 0 L) Z LU 2 Z Z W U a c � jig v C w -p ,p C Q. ) ✓ 0 C W q) n a i D m d E E a CE p ro C d ^� m C = U q C a 73 Q � P a O O u C m d `m Tp 'x a m z o E v z x m � m m m m � o U a e O m ; a m m Q Q Z E r d 0 U E 1 E E 0� I O d C � d Q C t y 4 `m % o e d y � V 'Q 5 a 'ro s N m n ro c m 0 L� y Q v P W E ~ m W f - y m N 3 w E � m C, c 0 o p J ° � ¢ L) E A a a cc n U' a N E �1 C � CW - E Q ` U m LL = = 6 O C9 y P � E m 7 m E Z H v m c [7 E Page 67 of 68 4 U (U v H W 12 Sample Preservation Verification ENCO Cary Work Order: CC06075 Project: White Street LF-Phase II Client: Golder Associates, Inc. (GO007) Project#: 1668421.105 Logged In. 15-Apr-19 15:45 �� Logged By: Rachel Ann Yonish` r Preservation Check Performed By: DateMrne: `--i I.1 Y1( 67 lj V CC06075-01 Cont Type Pres (pH) Requirement pH Checked 1 In Control pH Adjusted DateMme Adjusted Reagent Used/Comments A 250mLP+HNO3 �2 Y/ N I NA Y N 11 NA Reagent Name ID 1 2 pH Strip ID' PH Strips C8J0741 CAeimnt\Prin,,..,%v—' 1catV1vduunt.neCK.rQt Reagent Name ID 3 4 Reaclent Name ID 5 6 Page 68 of 68 WORK ORDER Printed: 4/25/2019 2:39:17PM CC05276 ENCO Cary Sample Receipt Conditions Client: Golder Associates, Inc. (G0007) Lab Project Mgr: Stephanie Franz Project: White Street LF-Phase II Project Number: 1668421.105 PO #: Report To: Invoice To: Golder Associates, Inc. (G0007) City of Greensboro (CI034) Dusty Reedy Richard Lovett 5B Oak Branch Drive 401 Patton Ave Greensboro, NC 27407 Greensboro, NC 27406 Phone: (336) 852-4903 Phone :(336) 373-4188 Fax: (336) 852-4904 Fax: Received By: Timothy J. Parker Date Received: 09-Apr-19 11:42 Logged In By: John C King Date Logged In: 09-Apr-19 15:12 Work Order Comments: C-101 received at 1.0°C Containers Intact Y Containers Properly Preserved Y Proper Containers Received Y All Samples in PreLog Received Y COC/Labels Agree Y Custody Seals Intact Y Volatile Containers Preserved Y Volatile Containers Headspace Free Y Aqueous Samples Checked for Residual Cl N Received On Ice Y Temperature Corrected Y Page 1 of 1 WORK ORDER Printed: 4/25/2019 2:39:05PM CC05934 ENCO Cary Sample Receipt Conditions Client: Golder Associates, Inc. (G0007) Lab Project Mgr: Stephanie Franz Project: White Street LF-Phase II Project Number: 1668421.105 PO #: Report To: Invoice To: Golder Associates, Inc. (G0007) City of Greensboro (CI034) Dusty Reedy Richard Lovett 5B Oak Branch Drive 401 Patton Ave Greensboro, NC 27407 Greensboro, NC 27406 Phone: (336) 852-4903 Phone :(336) 373-4188 Fax: (336) 852-4904 Fax: Received By: David E. Wilder Date Received: 11-Apr-19 08:00 Logged In By: John C King Date Logged In: 11-Apr-19 14:57 Work Order Comments: C-101 received at 0.7°C Containers Intact Y Containers Properly Preserved Y Proper Containers Received Y All Samples in PreLog Received Y COC/Labels Agree Y Custody Seals Intact Y Volatile Containers Preserved Y Volatile Containers Headspace Free Y Aqueous Samples Checked for Residual Cl N Received On Ice Y Temperature Corrected Y Page 1 of 1 WORK ORDER Printed: 4/25/2019 2:38:53PM CC06034 ENCO Cary Sample Receipt Conditions Client: Golder Associates, Inc. (G0007) Lab Project Mgr: Stephanie Franz Project: White Street LF-Phase II Project Number: 1668421.105 PO #: Report To: Invoice To: Golder Associates, Inc. (G0007) City of Greensboro (CI034) Dusty Reedy Richard Lovett 5B Oak Branch Drive 401 Patton Ave Greensboro, NC 27407 Greensboro, NC 27406 Phone: (336) 852-4903 Phone :(336) 373-4188 Fax: (336) 852-4904 Fax: Received By: Rachel Ann Yonish Date Received: 12-Apr-19 10:30 Logged In By: Rachel Ann Yonish Date Logged In: 12-Apr-19 13:44 Work Order Comments: C-101 received at 1.4°C Containers Intact Y Containers Properly Preserved Y Proper Containers Received Y All Samples in PreLog Received Y COC/Labels Agree Y Custody Seals Intact Y Volatile Containers Preserved Y Volatile Containers Headspace Free Y Aqueous Samples Checked for Residual Cl N Received On Ice Y Temperature Corrected Y Page 1 of 1 WORK ORDER Printed: 4/25/2019 2:38:42PM CC06075 ENCO Cary Sample Receipt Conditions Client: Golder Associates, Inc. (G0007) Lab Project Mgr: Stephanie Franz Project: White Street LF-Phase II Project Number: 1668421.105 PO #: Report To: Invoice To: Golder Associates, Inc. (G0007) City of Greensboro (CI034) Dusty Reedy Richard Lovett 5B Oak Branch Drive 401 Patton Ave Greensboro, NC 27407 Greensboro, NC 27406 Phone: (336) 852-4903 Phone :(336) 373-4188 Fax: (336) 852-4904 Fax: Received By: David E. Wilder Date Received: 15-Apr-19 10:00 Logged In By: Rachel Ann Yonish Date Logged In: 15-Apr-19 15:45 Work Order Comments: C-101 received at 0.7°C Containers Intact Y Containers Properly Preserved Y Proper Containers Received Y All Samples in PreLog Received Y COC/Labels Agree Y Custody Seals Intact Y Volatile Containers Preserved Y Volatile Containers Headspace Free Y Aqueous Samples Checked for Residual Cl N Received On Ice Y Temperature Corrected Y Reviewed By Date Page 1 of 1 GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL GOLDER LABORATORY DATA REVIEW Page 1 of 4 Project Name: White Street Landfill — Phase 11 Project Reference Number: 1668421.105 Sampling Event Date: April 8-12, 2019 Review Date: May 2, 2019 Initials: DC Report #. CC05276, CC05934, CC06034, CC06075 Signature: C_iDate: QA/QC Sign Off. • Date: 5 - z - f 5 Person(s) performing the review are to initial each item on this form as acknowledgement of data acceptance, or as acknowledgement of a review issue. In the case of the latter, a brief explanation should follow the applicable item. Golder Associates Inc. has reviewed the laboratory certificates of analysis, chain -of -custody form, and laboratory provided sample group quality assurance and quality control data for the above referenced sample group to identify potential bias or inaccuracy, in general accordance with the following United States Environmental Protection Agency documents: Region III Modifications to Functional Guidelines for Organic Data Review Multi -Media, Multi -Concentration, September 1994; Region III Modifications to the Laboratory Data Validation Functional Guidelines for Evaluating Inorganic Analyses, April 1993; and Laboratory Data Validation Functional Guidelines for Evaluating Inorganic Analyses, July 1998. COMPLIANCE ANALYTE LIST(S) (check all that apply) NC Closed Facility/C & D List X NC Appendix I NC Appendix I + Detects X NC Appendix II + lead and tetrahydrofuran NC Subtitle D Leachate List Other: sulfide, cyanide, and mercury 1.0 CHAIN OF CUSTODY (COC) REVIEW DC COC was properly signed by all parties. DC Correct project name and number are on the form. DC Sample receipt condition at laboratory was acceptable. DC Each sample and blank submitted for analysis appears in the report. 2.0 SAMPLE HOLDING TIMES DC Holding times for extraction and/or analysis were met for each analytical GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL GOLDER LABORATORY DATA REVIEW Page 2 of 4 Method (see below for reference). Review Criteria Method Anal es Holding Time SW-846 Method 8260 and 8011 VOCs 14 days SW-846 Methods 8270, 8080, 8081, 8082, and 8151 SVOCs, PCBs, pesticides and herbicides 7 days for extraction, 40 days from extraction for analysis SW-846 Methods 6000 and 7000 Series Metals except mercury 6 months (no temperature requirements) SW-846 Method 7470 Mercury 28 days SW-846 Method 376.1 Sulfide 7 days SW-846 Method 9010 Cyanide 14 da s EPA Method 300 Nitrate/Sulfate 48 hours/28 days EPA Method 405.1 BOD 48 hours EPA Method 410.4 COD 1 28 days EPA Method 365.4 Phosphorous 1 28 days 3.0 LABORATORY QUALITY CONTROL REVIEW DC Laboratory analyzed at least one internal blank for each method, where applicable. DC Laboratory blank is interference -free. DC Surrogate recoveries are provided for each analytical method, where applicable. DC Surrogate recoveries for each method are within the acceptable limits (i.e., at least 50% of the surrogates were within range). ➢ The 8260D SIM surrogate spike recovery of Toluene-d8 exceeded acceptance criteria for samples 114 and 1I-7B. DC MS/MSD/LCS data results are provided for each analytical method. DC MS/MSD/LCS recoveries for each method are within the acceptable limits (i.e., at least 1 of the 3 were within range). ➢ The spike recoveries of Benzene and Trichloroethene were outside of control limits for the 8260D MS and/or MSD samples. The QC batch was approved based on acceptable LCS recovery of these analytes. LCS/LCSD were analyzed in place of the MS/MSD for the 8260D SIM analysis for 1,4-Dioxane. 4.0 ANALYTE LISTS/METHODS DC The proper number of constituents are present for each analyte list as identified above (including detects where applicable). DC Proper EPA SW-846 analytical methods were used for analysis. 5.0 DATA REPORTING DC All analytical reporting associated with the event was performed by the contracted lab. DC Trip, field and/or equipment, and laboratory blank results have all been reported. All detects for blanks are listed below by constituent. All laboratory method blanks, if any, GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL G 4 L D E P LABORATORY DATA REVIEW Page 3 of 4 have been `flagged' with a `B' where detected in other samples as appropriate and a laboratory narrative was provided. If the sample was flagged by the laboratory and is not within 5X of the concentration in the blank (or 1 OX for commonly detected laboratory contaminants -acetone, methylene chloride and phthalates), list below with explanation if flags should be removed. If flags need to be added for samples, also list below. • Methylene Chloride in Trip Blank @ 0.52 (J) • Cadmium in Method Blank @ 0.361 ug/L (J) • Selenium in Method Blank @ 10 ug/L • Nickel in Method Blank @ 2.78 ug/L (J) DC It is clear from the laboratory report that samples have or have not been diluted during analysis, and if the samples have been diluted, the result is reported as a multiple of the dilution (e.g., a sample diluted 10x resulting in an analytical detection of 1.0 should be reported as 10). Those that have been diluted are listed below with the dilution factor. ➢ Thallium ■ 5x @ MW-14 • 2x @ 111, 115, 118, 1112, 112, 113, 114A, 116, 117, Duplicate II, 117B ➢ Antimony ■ 5x @ MINA 4 ■ 2x @ 111, 115, 118, 1112, 112, 113, 114A, 116, 117, Duplicate 11, 117B ➢ 1,4-Dioxane ■ 5x @ Ill, 114A, Duplicate II ■ 10x @ 118 DC The report provides the reporting limit for each constituent. DC The results were reported at or below their proper reporting limits (e.g., NC Solid Waste Section Reporting Limits-SWSLs). Those that are not reported correctly are listed below (by constituent) with the proper reporting limit listed beside them. State if the reporting limit error is due to dilutions. DC No inorganic or organic constituents were reported above their respective NC 2L Drinking Water Standards or Groundwater Protection Standards (GPS) in wells or field/equipment/trip blanks or above applicable Surface Water Standards for surface water points. NC SINK Exceedances ➢ 1,4-Dichlorobenzene (NC SWSL =1 ug/L) • II-1 @ 7.9 ug/L • II-2 @ 3.3 ug/L • II-4A @ 1.1 ug/L ➢ Barium (NC SWSL = 100 ug/L) • II-1 @ 288 ug/L • II-3 @ 257 ug/L • II-4A @ 166 ug/L • II-8 @ 180 ug/L • II-12 @ 104 ug/L Cobalt (NC SWSL = 10 ug/L) 0 II-1 @ 27.3 ug/L • II-3 @ 12.1 ug/L ➢ Copper (NC SWSL = 10 ug/L) • II-8 @ 12.2 ug/L • II-6 @ 86.0 ug/L r Chlorobenzene (NC SWSL = 3 ug/L) • II-4A @ 3.5 ug/L y Nickel (NC SWSL = 50 ug/L) • II-8 @ 96.2 ug/L • II4A @ 59.0 Y Trichloroethene (NC SWSL = 1 ug/L) • II-2 @ 1.2 ug/L y Vinyl Chloride (NC SWSL = 1 ug/L) GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL O L D S R LABORATORY DATA REVIEW Page 4 of 4 • II-2 @ 1.4 ug/L . II-3 @ 15.8 ug/L e Zinc (NC SWSL = 10 ug/L) 0 II-6 @ 68.9 ug/L • II-5 @ 16.5 ug/L NC 2L Exceedances ➢ 1,1-Dichloroethane (NC 2L = 6 0 II-5 @ 3.65 ug/L (J) ug/L) . II-8 @ 6.20 ug/L (J) II-2 @ 7.2 ug/L . II-12 @ 3.19 ug/L (J) ➢ 1,4-Dichlorobenzene (NC 2L = ➢ Vanadium (NC 2L = 0.3 ug/L) 6 ug/L) . II-3 @ 2.08 ug/L (J) • II-1 @ 7.9 ug/L . II-4A @ 3.54 ug/L (J) ➢ 1,4-Dioxane (NC 2L = 3 ug/L) . II-5 @ 4.30 ug/L (J) • II-1 @ 120 ug/L (D) . II-8 @ 3.21 ug/L (J) • II-8 @ 290 ug/L (D) . II-12 @ 5.77 ug/L (J) • II-4A @ 83 ug/L (D) ➢ Vinyl Chloride (NC 2L = 0.03 • II-6 @ 6.3 ug/L ug/L) ➢ Cobalt (NC 2L IMAC = 1 ug/L) . II-2 @ 1.4 ug/L • II-1 @ 27.3 ug/L • II-3 @ 12.1 ug/L N/A No quantifiable inorganic or organic constituents were detected in a well or surface water point at concentrations outside of their historical range (more than 5X previous concentrations or first-time detections). N/A Other report issues/Communications with laboratory/etc.: ENCO Laboratones Accurate. Timely. Responsive. Innovative. 102-A Woodwinds Industrial Court Cary NC, 27511 Phone: 919.467.3090 FAX: 919.467.3515 Saturday, May 4, 2019 Golder Associates, Inc. (GO007) Attn: Dusty Reedy 5B Oak Branch Drive Greensboro, NC 27407 RE: Laboratory Results for Project Number: 1668421.103, Project Name/Desc: White Street LF-Phase II MNA ENCO Workorder(s): CC05277,CC05937 Dear Dusty Reedy, Enclosed is a copy of your laboratory report for test samples received by our laboratory between Tuesday, April 9, 2019 and Thursday, April 11, 2019. Unless otherwise noted in an attached project narrative, all samples were received in acceptable condition and processed in accordance with the referenced methods/procedures. Results for these procedures apply only to the samples as submitted. The analytical results contained in this report are in compliance with NELAC standards, except as noted in the project narrative if applicable. This report shall not be reproduced except in full, without the written approval of the Laboratory. This report contains only those analyses performed by Environmental Conservation Laboratories. Unless otherwise noted, all analyses were performed at ENCO Cary. Data from outside organizations will be reported under separate cover. If you have any questions or require further information, please do not hesitate to contact me. Sincerely, Stephanie Franz Project Manager Enclosure(s) FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 1 of 23 PROJECT NARRATIVE Date: 04 May 2019 Client: Golder Associates, Inc. (G0007) Project: White Street LF-Phase II MNA Lab ID: CC05937 Overview (� �Eo www.encolabs.com Environmental Conservation Laboratories, Inc. (ENCO) analyzed all submitted samples in accordance with the methods referenced in the laboratory report. Any particular difficulties encountered during sample handling by ENCO are discussed in the QC Remarks section below. Quality Control Samples The spike recoveries of Chloride, Nitrate/Nitrite (NOx), and Sulfate were outside of control limits for the MS and/or MSD samples. The QC batches were approved based on acceptable LCS recovery of these analytes. Nitrite was detected in the Method Blank; however, this analyte was not detected in the associated sample, reducing the impact of the deviation. Precision between duplicate analyses of Ethane, Ethene, and Methane exceeded acceptance criteria. The QC batch was approved based on acceptable LCS recovery of these analytes. Quality Control Remarks The Continuing Calibration Verification sample (CCV) for the Fatty Acids test exhibited a high bias for iso-Hexanoic Acid; however, this analyte was not detected in the associated sample, reducing the impact of the deviation. Other Comments All samples received under this work order arrived in acceptable conditions. The samples were not checked for residual chlorine, as it is not required. No aqueous volatile samples were received, negating the need to check for preservation or headspace. The analytical data presented in this report are consistent with the methods as referenced in the analytical report. Any exceptions or deviations are noted in the QC remarks section of this narrative or in the Flags/Notes and Definitions section of the report. Released By: Environmental Conservation Laboratories, Inc. Stephanie Franz Project Manager FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 2 of 23 (� �Eo www.encolabs.com SAMPLE SUMMARY/LABORATORY CHRONICLE Client ID: 4103-MW14 Lab ID: CCO5277-01 Sampled: 04/08/19 16:00 Received: 04/09/19 11:42 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 05/06/19 04/24/19 03:49 04/24/19 03:49 EPA 310.2 NO PREP 04/22/19 04/17/19 15:00 04/17/19 16:03 EPA 353.2 NO PREP 04/10/19 16:00 04/10/19 10:13 04/10/19 10:13 EPA 353.2 [CALC] 04/10/19 16:00 04/24/19 10:11 04/24/19 13:47 EPA 353.2 NO PREP 05/06/19 04/24/19 10:11 04/24/19 13:47 RSK-175 Same 04/22/19 04/15/19 17:27 04/16/19 12:41 SM 4500S2 D-2011 NO PREP 04/15/19 04/13/19 12:40 04/13/19 13:05 SM 531OB-2011 Same 05/06/19 04/15/19 10:30 04/16/19 15:09 Volatile Fatty Acids NO PREP 05/06/19 04/11/19 09:05 04/11/19 13:17 Client ID: 4103-II1 Lab ID: CCO5937-01 Sampled: 04/10/19 09:27 Received: 04/11/19 08:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 05/08/19 04/26/19 10:58 04/27/19 01:49 EPA 353.2 NO PREP 04/12/19 09:27 04/11/19 18:59 04/11/19 18:59 EPA 353.2 [CALC] 04/12/19 09:27 04/24/19 14:07 04/24/19 18:39 EPA 353.2 NO PREP 05/08/19 04/24/19 14:07 04/24/19 18:39 RSK-175 Same 04/24/19 04/15/19 17:30 04/18/19 16:11 SM 4500S2 D-2011 NO PREP 04/17/19 04/13/19 12:40 04/13/19 13:05 SM 531OB-2011 Same 05/08/19 04/18/19 17:00 04/18/19 18:46 Volatile Fatty Acids NO PREP 05/08/19 04/19/19 11:00 04/19/19 13:30 Client ID: 4103-II1 Lab ID: CCO5937-01RE1 Sampled: 04/10/19 09:27 Received: 04/11/19 08:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 05/08/19 05/01/19 11:20 05/01/19 20:25 EPA 310.2 NO PREP 04/24/19 04/20/19 11:30 04/20/19 15:08 Client ID: 4103-II9 Lab ID: CCO5937-02 Sampled: 04/10/19 10:10 Received: 04/11/19 08:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 05/08/19 04/26/19 10:58 04/27/19 02:04 EPA 310.2 NO PREP 04/24/19 04/20/19 11:30 04/20/19 13:12 EPA 353.2 NO PREP 04/12/19 10:10 04/11/19 19:00 04/11/19 19:00 EPA 353.2 [CALC] 04/12/19 10:10 04/24/19 14:07 04/24/19 18:40 EPA 353.2 NO PREP 05/08/19 04/24/19 14:07 04/24/19 18:40 RSK-175 Same 04/24/19 04/15/19 17:30 04/18/19 16:43 SM 4500S2 D-2011 NO PREP 04/17/19 04/13/19 12:40 04/13/19 13:05 SM 531OB-2011 Same 05/08/19 04/18/19 17:00 04/18/19 18:46 Volatile Fatty Acids NO PREP 05/08/19 04/19/19 11:00 04/19/19 14:03 Client ID: 4303-SMW3 Lab ID: CCO5937-03 Sampled: 04/10/19 12:27 Received: 04/11/19 08:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 05/08/19 04/26/19 10:58 04/27/19 02:19 EPA 310.2 NO PREP 04/24/19 04/20/19 11:30 04/20/19 13:13 EPA 353.2 NO PREP 04/12/19 12:27 04/11/19 19:01 04/11/19 19:01 EPA 353.2 [CALC] 04/12/19 12:27 04/30/19 09:36 04/30/19 12:51 RSK-175 Same 04/24/19 04/15/19 17:30 04/18/19 16:59 SM 4500S2 D-2011 NO PREP 04/17/19 04/13/19 12:40 04/13/19 13:05 SM 531OB-2011 Same 05/08/19 04/18/19 17:00 04/18/19 18:46 Volatile Fatty Acids NO PREP 05/08/19 04/19/19 11:00 04/19/19 14:37 Client ID: 4303-SMW3 Lab ID: CC05937-03RE1 Sampled: 04/10/19 12:27 Received: 04/11/19 08:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 353.2 NO PREP 05/08/19 04/30/19 09:36 04/30/19 12:51 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 3 Of 23 (� �Eo www.encolabs.com SAMPLE DETECTION SUMMARY Client ID: 4103-MW14 Lab ID: CCO5277-01 Anala Results Flag MDL POLL Units Method Notes Chloride 3100 1 2200 5000 ug/L EPA 300.0 Propionic Acid 570 65 100 ug/L Volatile Fatty Acids Total Organic Carbon 1400 340 1000 ug/L SM 531OB-2011 Client ID: 4103-II1 Lab ID: CCO5937-01 Anala Results Flag MDL POLL Units Method Notes Acetic Acid 16000 180 200 ug/L Volatile Fatty Acids Chloride 380000 D 22000 50000 ug/L EPA 300.0 Methane 22.4 0.450 1.00 ug/L RSK-175 Total Organic Carbon 39000 340 1000 ug/L SM 531OB-2011 Client ID: 4103-II1 Lab ID: CC05937-01RE3 Anala Results Flag MDL POLL Units Method Notes Sulfate as SO4 16000 2900 5000 ug/L EPA 300.0 Total Alkalinity as CaCO3 900000 D 70000 75000 ug/L EPA 310.2 Client ID: 4103-II9 Lab ID: CC05937-02 Anala Results Flag MDL POLL Units Method Notes Chloride 23000 2200 5000 ug/L EPA 300.0 Methane 6.28 0.450 1.00 ug/L RSK-175 Sulfate as SO4 59000 2900 5000 ug/L EPA 300.0 Total Alkalinity as CaCO3 81000 D 28000 30000 ug/L EPA 310.2 Total Organic Carbon 3800 340 1000 ua/L SM 531OB-2011 Client ID: 4103-SMW3 Lab ID: CCO5937-03 Anala Results Flag MDL POLL Units Method Notes Chloride 21000 2200 5000 ug/L EPA 300.0 Methane 56.0 0.450 1.00 ug/L RSK-175 Sulfate as SO4 27000 2900 5000 ug/L EPA 300.0 Total Alkalinity as CaCO3 370000 D 28000 30000 ug/L EPA 310.2 Total Organic Carbon 7000 340 1000 ug/L SM 531OB-2011 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 4 Of 23 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-MW14 Lab Sample ID:CC05277-01 Received: 04/09/19 11:42 Matrix: Ground Water Sampled:04/08/19 16:00 Work Order: CC05277 Project: White Street LF-Phase II MNA Sampled By: Erik Vasko Classical Chemistry Parameters ^ - ENCO Cary certified analyte [NC 591] Analyte fCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes Chloride [16887-00-6]^ 3100 J ug/L 1 2200 5000 9D23026 EPA 300.0 04/24/19 03:49 MKS Nitrate as N [14797-55-8] 0.041 U mg/L 1 0.041 0.10 [CALC] EPA 353.2 04/24/19 13:47 NMN Nitrate/Nitrite as N^ 41 U ug/L 1 41 100 9D24019 EPA 353.2 04/24/19 13:47 MKS Nitrite as N [14797-65-0]^ 17 U ug/L 1 17 100 9D10023 EPA 353.2 04/10/19 10:13 NMN QB-02 Sulfate as SO4 [14808-79-8]1 2900 U ug/L 1 2900 5000 9D23026 EPA 300.0 04/24/19 03:49 MKS Sulfide [18496-25-8]1 10 U ug/L 1 10 100 9D13004 >M 4500S2 D-2011 04/13/19 13:05 JOC Total Alkalinity as CaCO3 [471-34-1]^ 14000 U ug/L 1 14000 15000 9D17041 EPA 310.2 04/17/19 16:03 MKS Volatile Fatty Acids by HPLC Analyte fCAS Numberl Results Flag Units OF MDL P L Batch Method Analyzed —By Notes Acetic Acid [64-19-7] 180 U ug/L 1 180 200 9D11009 ✓olatile Fatty Acids 04/11/19 13:17 JFI Butyric Acid [107-92-6] 89 U ug/L 1 89 100 9D11009 ✓olatile Fatty Acids 04/11/19 13:17 JFI Hexanoic Acid [142-62-1] 260 U ug/L 1 260 500 9D11009 ✓olatile Fatty Acids 04/11/19 13:17 JFI iso-Hexanoic Acid [646-07-1] 440 U ug/L 1 440 500 9D11009 ✓olatile Fatty Acids 04/11/19 13:17 JFI QV-01 iso-Pentanoic Acid [503-74-2] 180 U ug/L 1 180 200 9D11009 ✓olatile Fatty Acids 04/11/19 13:17 JFI Lactic Acid/HIBA (2-Hydroxyisobutyric Acid) 130 U ug/L 1 130 140 9D11009 ✓olatile Fatty Acids 04/11/19 13:17 JFI [50-21-5/594-61-6] Pentanoic Acid [109-52-4] 140 U ug/L 1 140 200 9D11009 ✓olatile Fatty Acids 04/11/19 13:17 JFI Propionic Acid [79-09-4] 570 ug/L 1 65 100 9D11009 ✓olatile Fatty Acids 04/11/19 13:17 JFI Pyruvic Acid [127-17-3] 21 U ug/L 1 21 70 9D11009 ✓olatile Fatty Acids 04/11/19 13:17 JFI Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed " Notes Trimethylacetic acid 21000 1 20000 106 % 50-150 9DII009 Volatile Fatty Acid-, 04/11/1913:17 JFI Classical Chemistry Parameters ^ - ENCO Orlando certified analyte [NC 424] Analyte fCAS Numberl Results Flag Units DF MDL POLL Batch Method Analyzed —By Notes Total Organic Carbon^ 1400 ug/L 1 340 1000 9D16046 SM 531OB-2011 04/16/19 15:09 S1R Dissolved Gases by GC Analyte fCAS Numberl Results Flag Units DF MDL POLL Batch Method Analyzed —By Notes Ethane [74-84-0] 1.30 U ug/L 1 1.30 2.00 9D15011 RSK-175 04/16/19 12:41 LTS Ethene [74-85-1] 1.50 U ug/L 1 1.50 3.00 9D15011 RSK-175 04/16/19 12:41 LTS Methane [74-82-8] 0.450 U ug/L 1 0.450 1.00 9D15011 RSK-175 04/16/19 12:41 LTS FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Pager) of 23 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-IIl Lab Sample ID:CC05937-01 Received: 04/11/19 08:00 Matrix: Ground Water Sampled:04/10/19 09:27 Work Order: CC05937 Project: White Street LF-Phase II MNA Sampled By:ASHLEY MARTIN Classical Chemistry Parameters ^ - ENCO Cary certified analyte [NC 591] Analyte fCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes Chloride [16887-00-6]^ 380000 D ug/L 10 22000 50000 9D26015 EPA 300.0 04/27/19 01:49 MKS Nitrate as N [14797-55-8] 0.041 U mg/L 1 0.041 0.10 [CALC] EPA 353.2 04/24/19 18:39 NMN Nitrate/Nitrite as N^ 41 U ug/L 1 41 100 9D24037 EPA 353.2 04/24/19 18:39 MKS Nitrite as N [14797-65-0]^ 17 U ug/L 1 17 100 9D11029 EPA 353.2 04/11/19 18:59 NMN Sulfate as SO4 [14808-79-8]^ 16000 ug/L 1 2900 5000 9EO1019 EPA 300.0 05/01/19 20:25 MKS Sulfide [18496-25-8]^ 10 U ug/L 1 10 100 9D13004 >M 4500S2 D-2011 04/13/19 13:05 JOC Total Alkalinity as CaCO3 [471-34-1]^ 900000 D ug/L 5 70000 75000 9D20007 EPA 310.2 04/20/19 15:08 MKS Volatile Fatty Acids by HPLC Analyte fCAS Numberl Results Flag Units OF MDL P L Batch Method Analyzed By Notes Acetic Acid [64-19-7] 16000 ug/L 1 180 200 9D19031 ✓olatile Fatty Acids 04/19/19 13:30 JFI Butyric Acid [107-92-6] 89 U ug/L 1 89 100 9D19031 ✓olatile Fatty Acids 04/19/19 13:30 JFI Hexanoic Acid [142-62-1] 260 U ug/L 1 260 500 9D19031 ✓olatile Fatty Acids 04/19/19 13:30 JFI iso-Hexanoic Acid [646-07-1] 440 U ug/L 1 440 500 9D19031 ✓olatile Fatty Acids 04/19/19 13:30 JFI iso-Pentanoic Acid [503-74-2] 180 U ug/L 1 180 200 9D19031 ✓olatile Fatty Acids 04/19/19 13:30 JFI Lactic Acid/HIBA (2-Hydroxyisobutyric Acid) 130 U ug/L 1 130 140 9D19031 ✓olatile Fatty Acids 04/19/19 13:30 JFI [50-21-5/594-61-6] Pentanoic Acid [109-52-4] 140 U ug/L 1 140 200 9D19031 ✓olatile Fatty Acids 04/19/19 13:30 JFI Propionic Acid [79-09-4] 65 U ug/L 1 65 100 9D19031 ✓olatile Fatty Acids 04/19/19 13:30 JFI Pyruvic Acid [127-17-3] 21 U ug/L 1 21 70 9D19031 ✓olatile Fatty Acids 04/19/19 13:30 JFI Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes Trimethylacetic acid 22000 1 20000 110 % 50-150 9D19031 Volatile Fatty Acid-, 04/19/1913:30 JFI Classical Chemistry Parameters ^ - ENCO Orlando certified analyte [NC 424] Analyte fCAS Numberl Results Flag Units DF MDL POLL Batch Method Analyzed By Notes Total Organic Carbon^ 39000 ug/L 1 340 1000 9D18020 SM 531OB-2011 04/18/19 18:46 S1R Dissolved Gases by GC Analyte fCAS Numberl Results Flag Units DF MDL POLL Batch Method Analyzed —By Notes Ethane [74-84-0] 1.30 U ug/L 1 1.30 2.00 9D15013 RSK-175 04/18/19 16:11 LTS Ethene [74-85-1] 1.50 U ug/L 1 1.50 3.00 9D15013 RSK-175 04/18/19 16:11 LTS Methane [74-82-8] 22.4 ug/L 1 0.450 1.00 9D15013 RSK-175 04/18/19 16:11 LTS FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 6 of 23 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-II9 Lab Sample ID:CC05937-02 Received: 04/11/19 08:00 Matrix: Ground Water Sampled:04/10/19 10: 10 Work Order: CC05937 Project: White Street LF-Phase II MNA Sampled By:ASHLEY MARTIN Classical Chemistry Parameters ^ - ENCO Cary certified analyte [NC 591] Analyte fCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes Chloride [16887-00-6]^ 23000 ug/L 1 2200 5000 9D26015 EPA 300.0 04/27/19 02:04 MKS Nitrate as N [14797-55-8] 0.041 U mg/L 1 0.041 0.10 [CALC] EPA 353.2 04/24/19 18:40 NMN Nitrate/Nitrite as N^ 41 U ug/L 1 41 100 9D24037 EPA 353.2 04/24/19 18:40 MKS Nitrite as N [14797-65-0]^ 17 U ug/L 1 17 100 9D11029 EPA 353.2 04/11/19 19:00 NMN Sulfate as SO4 [14808-79-8]^ 59000 ug/L 1 2900 5000 9D26015 EPA 300.0 04/27/19 02:04 MKS Sulfide [18496-25-8]^ 10 U ug/L 1 10 100 9D13004 >M 4500S2 D-2011 04/13/19 13:05 JOC Total Alkalinity as CaCO3 [471-34-1]^ 81000 D ug/L 2 28000 30000 9D20007 EPA 310.2 04/20/19 13:12 MKS Volatile Fatty Acids by HPLC Analyte fCAS Numberl Results Flag Units OF MDL P L Batch Method Analyzed By Notes Acetic Acid [64-19-7] 180 U ug/L 1 180 200 9D19031 ✓olatile Fatty Acids 04/19/19 14:03 JFI Butyric Acid [107-92-6] 89 U ug/L 1 89 100 9D19031 ✓olatile Fatty Acids 04/19/19 14:03 JFI Hexanoic Acid [142-62-1] 260 U ug/L 1 260 500 9D19031 ✓olatile Fatty Acids 04/19/19 14:03 JFI iso-Hexanoic Acid [646-07-1] 440 U ug/L 1 440 500 9D19031 ✓olatile Fatty Acids 04/19/19 14:03 JFI iso-Pentanoic Acid [503-74-2] 180 U ug/L 1 180 200 9D19031 ✓olatile Fatty Acids 04/19/19 14:03 JFI Lactic Acid/HIBA (2-Hydroxyisobutyric Acid) 130 U ug/L 1 130 140 9D19031 ✓olatile Fatty Acids 04/19/19 14:03 JFI [50-21-5/594-61-6] Pentanoic Acid [109-52-4] 140 U ug/L 1 140 200 9D19031 ✓olatile Fatty Acids 04/19/19 14:03 JFI Propionic Acid [79-09-4] 65 U ug/L 1 65 100 9D19031 ✓olatile Fatty Acids 04/19/19 14:03 JFI Pyruvic Acid [127-17-3] 21 U ug/L 1 21 70 9D19031 ✓olatile Fatty Acids 04/19/19 14:03 JFI Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes Trimethylacetic acid 22000 1 20000 109 % 50-150 9D19031 Volatile Fatty Acid-, 04/19/1914:03 JFI Classical Chemistry Parameters ^ - ENCO Orlando certified analyte [NC 424] Analyte fCAS Numberl Results Flag Units DF MDL POLL Batch Method Analyzed _By Notes Total Organic Carbon^ 3800 ug/L 1 340 1000 9D18020 SM 531OB-2011 04/18/19 18:46 S1R Dissolved Gases by GC Analyte fCAS Numberl Results Flag Units DF MDL POLL Batch Method Analyzed —By Notes Ethane [74-84-0] 1.30 U ug/L 1 1.30 2.00 9D15013 RSK-175 04/18/19 16:43 LTS Ethene [74-85-1] 1.50 U ug/L 1 1.50 3.00 9D15013 RSK-175 04/18/19 16:43 LTS Methane [74-82-8] 6.28 ug/L 1 0.450 1.00 9D15013 RSK-175 04/18/19 16:43 LTS FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 7 of 23 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-SMW3 Lab Sample ID:CC05937-03 Received: 04/11/19 08:00 Matrix: Ground Water Sampled:04/10/19 12:27 Work Order: CC05937 Project: White Street LF-Phase II MNA Sampled By:ASHLEY MARTIN Classical Chemistry Parameters ^ - ENCO Cary certified analyte [NC 591] Analyte fCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes Chloride [16887-00-6]^ 21000 ug/L 1 2200 5000 9D26015 EPA 300.0 04/27/19 02:19 MKS Nitrate as N [14797-55-8] 0.041 U mg/L 1 0.041 0.10 [CALC] EPA 353.2 04/30/19 12:51 MKS Nitrate/Nitrite as N^ 41 U ug/L 1 41 100 9D30028 EPA 353.2 04/30/19 12:51 MKS Nitrite as N [14797-65-0]^ 17 U ug/L 1 17 100 9D11029 EPA 353.2 04/11/19 19:01 NMN Sulfate as SO4 [14808-79-8]^ 27000 ug/L 1 2900 5000 9D26015 EPA 300.0 04/27/19 02:19 MKS Sulfide [18496-25-8]^ 10 U ug/L 1 10 100 9D13004 >M 4500S2 D-2011 04/13/19 13:05 JOC Total Alkalinity as CaCO3 [471-34-1]^ 370000 D ug/L 2 28000 30000 9D20007 EPA 310.2 04/20/19 13:13 MKS Volatile Fatty Acids by HPLC Analyte fCAS Numberl Results Flag Units OF MDL P L Batch Method Analyzed By Notes Acetic Acid [64-19-7] 180 U ug/L 1 180 200 9D19031 ✓olatile Fatty Acids 04/19/19 14:37 JFI Butyric Acid [107-92-6] 89 U ug/L 1 89 100 9D19031 ✓olatile Fatty Acids 04/19/19 14:37 JFI Hexanoic Acid [142-62-1] 260 U ug/L 1 260 500 9D19031 ✓olatile Fatty Acids 04/19/19 14:37 JFI iso-Hexanoic Acid [646-07-1] 440 U ug/L 1 440 500 9D19031 ✓olatile Fatty Acids 04/19/19 14:37 JFI iso-Pentanoic Acid [503-74-2] 180 U ug/L 1 180 200 9D19031 ✓olatile Fatty Acids 04/19/19 14:37 JFI Lactic Acid/HIBA (2-Hydroxyisobutyric Acid) 130 U ug/L 1 130 140 9D19031 ✓olatile Fatty Acids 04/19/19 14:37 JFI [50-21-5/594-61-6] Pentanoic Acid [109-52-4] 140 U ug/L 1 140 200 9D19031 ✓olatile Fatty Acids 04/19/19 14:37 JFI Propionic Acid [79-09-4] 65 U ug/L 1 65 100 9D19031 ✓olatile Fatty Acids 04/19/19 14:37 JFI Pyruvic Acid [127-17-3] 21 U ug/L 1 21 70 9D19031 ✓olatile Fatty Acids 04/19/19 14:37 JFI Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes Trimethylacetic acid 22000 1 20000 112 % 50-150 9D19031 Volatile Fatty Acid-, 04/19/1914:37 JFI Classical Chemistry Parameters ^ - ENCO Orlando certified analyte [NC 424] Analyte fCAS Numberl Results Flag Units DF MDL POLL Batch Method Analyzed _By Notes Total Organic Carbon^ 7000 ug/L 1 340 1000 9D18020 SM 531OB-2011 04/18/19 18:46 S1R Dissolved Gases by GC Analyte fCAS Numberl Results Flag Units DF MDL POLL Batch Method Analyzed —By Notes Ethane [74-84-0] 1.30 U ug/L 1 1.30 2.00 9D15013 RSK-175 04/18/19 16:59 LTS Ethene [74-85-1] 1.50 U ug/L 1 1.50 3.00 9D15013 RSK-175 04/18/19 16:59 LTS Methane [74-82-8] 56.0 ug/L 1 0.450 1.00 9D15013 RSK-175 04/18/19 16:59 LTS FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 8 of 23 (� �Eo www.encolabs.com QUALITY CONTROL DATA Classical Chemistry Parameters - Quality Control Batch 9D10023 - NO PREP Blank (9D10023-BLK3) Prepared: 04/10/2019 09:58 Analyzed: 04/10/2019 09:58 Spike Source %REC RPD Analvte Result Flag Q Units Level Result %REC Limits RPD Limit Notes Nitrite as N 42 3 100 ug/L 3-01, Q13-0: LCS (911)30023-BSI) Prepared: 04/10/2019 10:25 Analyzed: 04/10/2019 10:25 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Nitrite as N 0.99 0.10 mg/L 1.00 99 90-110 Matrix Spike (9D10023-MS1) Prepared: 04/10/2019 10:00 Analyzed: 04/10/2019 10:00 Source: CC04950-01 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Nitrite as N 1100 100 ug/L 1000 120 96 90-110 Matrix Spike (911)10023-MS2) Prepared: 04/10/2019 10:03 Analyzed: 04/10/2019 10:03 Source: CC04950-02 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Nitrite as N 1000 100 ug/L 1000 38 98 90-110 Matrix Spike Dup (9D10023-MSD1) Prepared: 04/10/2019 10:01 Analyzed: 04/10/2019 10:01 Source: CC04950-01 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Nitrite as N 1100 100 ug/L 1000 120 98 90-110 2 10 Batch 9D11029 - NO PREP Blank (9D11029-BLK1) Prepared: 04/11/2019 18:32 Analyzed: 04/11/2019 18:32 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Nitrite as N 17 U 100 ug/L LCS (911)11029-BSI) Prepared: 04/11/2019 18:40 Analyzed: 04/11/2019 18:40 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Nitrite as N 0.99 0.10 mg/L 1.00 99 90-110 Matrix Spike (911313029-MS3) Prepared: 04/11/2019 18:39 Analyzed: 04/11/2019 18:39 Source: CC04949-06 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Nitrite as N 1000 100 ug/L 1000 17 U 101 90-110 Matrix Spike Dup (9D13029-MSDS) Prepared: 04/11/2019 18:37 Analyzed: 04/11/2019 18:37 Source: CC04949-06 Analvte Nitrite as N Batch 9D13004 - NO PREP Spike Source %REC Result Flag POL Units Level Result %REC Limits RPD 980 100 ug/L 1000 17 U 98 90-110 3 RPD Limit Notes 10 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 9 Of 23 (� �Eo www.encolabs.com QUALITY CONTROL DATA Classical Chemistry Parameters - Quality Control Batch 9D13004 - NO PREP - Continued Blank (9D33004-BLK3) Prepared: 04/13/2019 12:40 Analyzed: 04/13/2019 13:05 Spike Source %REC RPD Analvte Result Flag Q Units Level Result %REC Limits RPD Limit Notes Sulfide 10 U 100 ug/L LCS (9D33004-BS1) Prepared: 04/13/2019 12:40 Analyzed: 04/13/2019 13:05 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Sulfide 0.36 0.10 mg/L 0.401 89 80-120 Duplicate (9D13004-DUPS) Prepared: 04/13/2019 12:40 Analyzed: 04/13/2019 13:05 Source: CCO5277-01 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Sulfide 10 U 100 ug/L 10 U 25 Matrix Spike (9D13004-MS3) Prepared: 04/13/2019 12:40 Analyzed: 04/13/2019 13:05 Source: CCO5277-01 Spike Source %REC RPD Analvte Result Flag Q Units Level Result %REC Limits RPD Limit Notes Sulfide 360 100 ug/L 401 10 U 89 80-120 Matrix Spike Dup (9D13004-MSD1) Prepared: 04/13/2019 12:40 Analyzed: 04/13/2019 13:05 Source: CCO5277-01 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Sulfide 360 100 ug/L 401 10 U 90 80-120 1 25 Batch 9D17041 - NO PREP Blank (9D17041-BLK1) Prepared: 04/17/2019 15:00 Analyzed: 04/17/2019 15:50 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Total Alkalinity as CaCO3 14000 U 15000 ug/L LCS (9D17041-BS1) Prepared: 04/17/2019 15:00 Analyzed: 04/17/2019 15:51 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Total Alkalinity as CaCO3 99 15 mg/L 100 99 80-120 Matrix Spike (9D17041-MS3) Prepared: 04/17/2019 15:00 Analyzed: 04/17/2019 15:53 Source: CCO5610-02 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Total Alkalinity as CaCO3 44000 15000 ug/L 37800 14000 U 117 80-120 Matrix Spike Dup (9D17041-MSDS) Prepared: 04/17/2019 15:00 Analyzed: 04/17/2019 15:53 Source: CCO5610-02 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Total Alkalinity as CaCO3 44000 15000 ug/L 37800 14000 U 117 80-120 0.05 25 Batch 9D20007 - NO PREP FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 10 Of 23 (� �Eo www.encolabs.com QUALITY CONTROL DATA Classical Chemistry Parameters - Quality Control Batch 9D20007 - NO PREP - Continued Blank (9D20007-BLK3) Prepared: 04/20/2019 11:30 Analyzed: 04/20/2019 12:45 Spike Source %REC RPD Analvte Result Flaq fQ Units Level Result %REC Limits RPD Limit Notes Total Alkalinity as CaCO3 14000 U 15000 ug/L LCS (9D20007-BSI) Prepared: 04/20/2019 11:30 Analyzed: 04/20/2019 12:45 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Alkalinity as CaCO3 87 15 mg/L 100 87 80-120 Matrix Spike (9D20007-MS1) Prepared: 04/20/2019 11:30 Analyzed: 04/20/2019 12:47 Source: CC06025-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Alkalinity as CaCO3 39000 15000 ug/L 37800 14000 U 103 80-120 Matrix Spike Dup (9D20007-MSD1) Prepared: 04/20/2019 11:30 Analyzed: 04/20/2019 12:47 Source: CC06025-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Alkalinity as CaCO3 43000 15000 ug/L 37800 14000 U 114 80-120 11 25 Batch 9D23026 - NO PREP Blank (9D23026-BLK3) Prepared & Analyzed: 04/23/2019 21:31 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 2200 U 5000 ug/L Sulfate as SO4 2900 U 5000 ug/L LCS (9D23026-BSI) Prepared & Analyzed: 04/23/2019 22:44 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 50000 5000 ug/L 50000 101 90-110 Sulfate as SO4 49000 5000 ug/L 50000 99 90-110 Matrix Spike (9D23026-MS1) Prepared & Analyzed: 04/23/2019 22:58 Source: CC04950-10 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 19000 5000 ug/L 20000 2200 U 93 90-110 Sulfate as SO4 18000 5000 ug/L 20000 2900 U 90 90-110 Matrix Spike (9D23026-MS2) Prepared & Analyzed: 04/23/2019 23:27 Source: CC04952-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 22000 5000 ug/L 20000 3000 95 90-110 Sulfate as SO4 18000 5000 ug/L 20000 2900 U 91 90-110 Matrix Spike Dup (9D23026-MSD1) Prepared & Analyzed: 04/23/2019 23:13 Source: CC04950-10 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 19000 5000 ug/L 20000 2200 U 95 90-110 2 10 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 11 Of 23 (� �Eo www.encolabs.com QUALITY CONTROL DATA Classical Chemistry Parameters - Quality Control Batch 9D23O26 - NO PREP - Continued Matrix Spike Dup (9D23026-MSDI) Continued Prepared & Analyzed: 04/23/2019 23:13 Source: CC04950-10 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Sulfate as SO4 18000 5000 ug/L 20000 2900 U 92 90-110 2 10 Batch 9D24O19 - NO PREP Blank (9D24019-BLK3) Prepared: 04/24/2019 10:11 Analyzed: 04/24/2019 13:10 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Nitrate/Nitrite as N 41 U 100 ug/L LCS (9D24019-BSI) Prepared: 04/24/2019 10:11 Analyzed: 04/24/2019 13:09 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Nitrate/Nitrite as N 1.2 0.10 mg/L 1.25 97 90-110 Matrix Spike (9D24019-MS3) Prepared: 04/24/2019 10:11 Analyzed: 04/24/2019 13:14 Source: CC03355-04RE1 Spike Source %REC RPD Analvte Result Flag Q Units Level Result %REC Limits RPD Limit Notes Nitrate/Nitrite as N 20000 1000 ug/L 5000 15000 106 90-110 Matrix Spike (9D24019-MS2) Prepared: 04/24/2019 10:11 Analyzed: 04/24/2019 13:19 Source: CC04711-OIREI Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Nitrate/Nitrite as N 2000 100 ug/L 521 1500 97 90-110 Matrix Spike Dup (9D24019-MSDS) Prepared: 04/24/2019 10:11 Analyzed: 04/24/2019 13:16 Source: CC03355-04RE1 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Nitrate/Nitrite as N 19000 1000 ug/L 5000 15000 85 90-110 5 10 QM-07 Batch 9D24O37 - NO PREP Blank (9D24037-BLK3) Prepared: 04/24/2019 14:07 Analyzed: 04/24/2019 17:33 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Nitrate/Nitrite as N 41 U 100 ug/L LCS (9D24037-BSI) Prepared: 04/24/2019 14:07 Analyzed: 04/24/2019 17:31 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Nitrate/Nitrite as N 1.3 0.10 mg/L 1.25 103 90-110 Matrix Spike (9D24037-MS1) Prepared: 04/24/2019 14:07 Analyzed: 04/24/2019 17:37 Source: CC03658-01 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Nitrate/Nitrite as N 660 100 ug/L 521 180 94 90-110 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 12 Of 23 (� �Eo www.encolabs.com QUALITY CONTROL DATA Classical Chemistry Parameters - Quality Control Batch 9D24037 - NO PREP - Continued Matrix Spike (9D24037-MS2) Prepared: 04/24/2019 14:07 Analyzed: 04/24/2019 18:17 Source: CC03658-02 Spike Source %REC RPD Analvte Result Flag Q Units Level Result %REC Limits RPD Limit Notes Nitrate/Nitrite as N 700 100 ug/L 521 190 98 90-110 Matrix Spike Dup (91324037-MS131) Prepared: 04/24/2019 14:07 Analyzed: 04/24/2019 17:38 Source: CC03658-01 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Nitrate/Nitrite as N 650 100 ug/L 521 180 92 90-110 1 10 Batch 9D26015 - NO PREP Blank (9D26015-BLKI) Prepared: 04/26/2019 10:58 Analyzed: 04/26/2019 18:33 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Chloride 2200 U 5000 ug/L Sulfate as SO4 2900 U 5000 ug/L LCS (9D26015-BSI) Prepared: 04/26/2019 10:58 Analyzed: 04/26/2019 19:46 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Chloride 51000 5000 ug/L 50000 101 90-110 Sulfate as SO4 50000 5000 ug/L 50000 99 90-110 Matrix Spike (9D26015-MS3) Prepared: 04/26/2019 10:58 Analyzed: 04/26/2019 20:00 Source: CC03677-01 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Chloride 20000 5000 ug/L 20000 4100 79 90-110 QM-07 Sulfate as SO4 19000 5000 ug/L 20000 4100 75 90-110 QM-07 Matrix Spike (9D26015-MS2) Prepared: 04/26/2019 10:58 Analyzed: 04/26/2019 20:30 Source: CCO5272-01 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Chloride 650000 E 5000 ug/L 20000 630000 103 90-110 QM-07 Sulfate as SO4 39000 5000 ug/L 20000 17000 111 90-110 QM-07 Matrix Spike Dup (9D26015-MSD1) Prepared: 04/26/2019 10:58 Analyzed: 04/26/2019 20:15 Ill Source: CC03677-01 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Chloride 20000 5000 ug/L 20000 4100 79 90-110 0.1 10 QM-07 Sulfate as SO4 19000 5000 ug/L 20000 4100 75 90-110 0.01 10 QM-07 Batch 9D3002B - NO PREP Blank (9D30028-BLK3) Prepared: 04/30/2019 09:36 Analyzed: 04/30/2019 12:44 Spike Source %REC RPD Analvte Result Flag Q Units Level Result %REC Limits RPD Limit Notes Nitrate/Nitrite as N 41 U 100 ug/L FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 13 Of 23 QUALITY CONTROL DATA Classical Chemistry Parameters - Quality Control Batch 9D30028 - NO PREP - Continued (� �Eo www.encolabs.com LCS (9D30028-BSI) Prepared: 04/30/2019 09:36 Analyzed: 04/30/2019 12:42 Spike Source %REC RPD Analvte Result Flaq Q Units Level Result %REC Limits RPD Limit Notes Nitrate/Nitrite as N 1.1 0.10 mg/L 1.25 91 90-110 Matrix Spike (9D30028-MS3) Prepared: 04/30/2019 09:36 Analyzed: 04/30/2019 12:47 Source: CCO5158-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Nitrate/Nitrite as N 4200 500 ug/L 2500 1700 100 90-110 Matrix Spike (9D30028-MS2) Prepared: 04/30/2019 09:36 Analyzed: 04/30/2019 12:53 Source: CC05937-03RE3 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Nitrate/Nitrite as N 500 100 ug/L 521 41 U 97 90-110 Matrix Spike Dup (9D30028-MSD1) Prepared: 04/30/2019 09:36 Analyzed: 04/30/2019 12:49 Source: CCO5158-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Nitrate/Nitrite as N 4300 500 ug/L 2500 1700 102 90-110 1 10 Batch 9E01019 - NO PREP Blank (9E03019-BLKi) Prepared: 05/01/2019 11:20 Analyzed: 05/01/2019 16:03 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Sulfate as SO4 2900 U 5000 ug/L LCS (9E01019-BSI) Prepared: 05/01/2019 11:20 Analyzed: 05/01/2019 17:16 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Sulfate as SO4 50000 5000 ug/L 50000 100 90-110 Matrix Spike (9E03019-MS3) Prepared: 05/01/2019 11:20 Analyzed: 05/01/2019 17:30 Source: CC03356-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Sulfate as SO4 350000 50000 ug/L 200000 130000 108 90-110 Matrix Spike (9E03019-MS2) Prepared: 05/01/2019 11:20 Analyzed: 05/01/2019 17:59 Source: CCO5104-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Sulfate as SO4 26000 5000 ug/L 20000 5500 102 90-110 Matrix Spike Dup (9E01019-MSDS) Prepared: 05/01/2019 11:20 Analyzed: 05/01/2019 17:45 Source: CC03356-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Sulfate as SO4 340000 50000 ug/L 200000 130000 107 90-110 1 10 Volatile Fatty Acids by HPLC - Quality Control Batch 9D11009 - NA FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 14 Of 23 0Nk"q09 www.encolabs.com QUALITY CONTROL DATA Volatile Fatty Acids by HPLC - Quality Control Batch 9D11009 - NA - Continued Blank (9D11009-BLKi) Prepared: 04/11/2019 09:05 Analyzed: 04/11/2019 09:54 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Acetic Acid 180 U 200 ug/L Butyric Acid 89 U 100 ug/L Hexanoic Acid 260 U 500 ug/L iso-Hexanoic Acid 440 U 500 ug/L iso-Pentanoic Acid 180 U 200 ug/L Lactic Acid/HIBA (2-Hydroxyisobutyric Acid) 130 U 140 ug/L Pentanoic Acid 140 U 200 ug/L Propionic Acid 65 U 100 ug/L Pyruvic Acid 21 U 70 ug/L Trimethylacetic acid 21000 u9/L 20000 106 50-150 LCS (9D11009-BS1) Prepared: 04/11/2019 09:05 Analyzed: 04/11/2019 10:28 Spike Source %REC RPD Analvte Result Flaci POL Uni Level Result %REC Limits RPD Limit Notes Acetic Acid 20000 200 ug/L 20000 98 60-123 Butyric Acid 17000 100 ug/L 20000 85 54-133 Hexanoic Acid 21000 500 ug/L 20000 104 62-146 !so-Hexanoic Acid 22000 500 ug/L 20000 110 36-168 iso-Pentanoic Acid 22000 200 ug/L 20000 109 59-138 Lactic Acid/HIBA (2-Hydroxyisobutyric Acid) 43000 140 ug/L 40000 109 73-131 Pentanoic Acid 20000 200 ug/L 20000 101 63-131 Propionic Acid 20000 100 ug/L 20000 101 74-121 Pyruvic Acid 23000 70 ug/L 20000 117 44-137 Trimethylacetic acid 24000 u9/L 20000 119 50-150 LCS Dup (91333009-BSD3) Prepared: 04/11/2019 09:05 Analyzed: 04/11/2019 11:02 Spike Source %REC RPD Analvte Result Flaa POL Units Level Result %REC Limits RPD Limit Notes Acetic Acid 19000 200 ug/L 20000 97 60-123 0.8 25 Butyric Acid 17000 100 ug/L 20000 84 54-133 1 25 Hexanoic Acid 20000 500 ug/L 20000 100 62-146 4 25 iso-Hexanoic Acid 21000 500 ug/L 20000 106 36-168 3 25 iso-Pentanoic Acid 21000 200 ug/L 20000 107 59-138 2 25 Lactic Acid/HIBA (2-Hydroxyisobutyric Acid) 43000 140 ug/L 40000 107 73-131 1 25 Pentanoic Acid 20000 200 ug/L 20000 100 63-131 0.9 25 Propionic Acid 20000 100 ug/L 20000 100 74-121 1 25 Pyruvic Acid 23000 70 ug/L 20000 116 44-137 0.9 25 Trimethylacetic acid 23000 u9/L 20000 116 50-150 Batch 9D19031 - NA Blank (9D19031-BLK3) Prepared: 04/19/2019 11:00 Analyzed: 04/19/2019 11:49 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Acetic Acid 180 U 200 ug/L Butyric Acid 89 U 100 ug/L Hexanoic Acid 260 U 500 ug/L iso-Hexanoic Acid 440 U 500 ug/L FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 15 Of 23 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Fatty Acids by HPLC - Quality Control Batch 9D19031 - NA - Continued Blank (9D19031-BLK3) Continued Prepared: 04/19/2019 11:00 Analyzed: 04/19/2019 11:49 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes iso-Pentanoic Acid 180 U 200 ug/L Lactic Acid/HIBA (2-Hydroxyisobutyric Acid) 130 U 140 ug/L Pentanoic Acid 140 U 200 ug/L Propionic Acid 65 U 100 ug/L Pyruvic Acid 21 U 70 ug/L Trimethylacetic acid 20000 u91L 20000 96 50-150 LCS (9D19031-BS1) Prepared: 04/19/2019 11:00 Analyzed: 04/19/2019 12:22 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Acetic Acid 22000 200 ug/L 20000 110 60-123 Butyric Acid 17000 100 ug/L 20000 85 54-133 Hexanoic Acid 22000 500 ug/L 20000 108 62-146 iso-Hexanoic Acid 20000 500 ug/L 20000 100 36-168 iso-Pentanoic Acid 24000 200 ug/L 20000 119 59-138 Lactic Acid/HIBA (2-Hydroxyisobutyric Acid) 49000 140 ug/L 40000 122 73-131 Pentanoic Acid 24000 200 ug/L 20000 120 63-131 Propionic Acid 21000 100 ug/L 20000 105 74-121 Pyruvic Acid 21000 70 ug/L 20000 105 44-137 Trimethylacetic acid 25000 u91L 20000 127 50-150 LCS Dup (9D19031-BSD3) Prepared: 04/19/2019 11:00 Analyzed: 04/19/2019 12:56 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Acetic Acid 22000 200 ug/L 20000 110 60-123 0.3 25 Butyric Acid 17000 100 ug/L 20000 85 54-133 0.02 25 Hexanoic Acid 21000 500 ug/L 20000 107 62-146 0.6 25 iso-Hexanoic Acid 20000 500 ug/L 20000 99 36-168 0.9 25 iso-Pentanoic Acid 24000 200 ug/L 20000 121 59-138 2 25 Lactic Acid/HIBA (2-Hydroxyisobutyric Acid) 49000 140 ug/L 40000 122 73-131 0.2 25 Pentanoic Acid 24000 200 ug/L 20000 118 63-131 1 25 Propionic Acid 21000 100 ug/L 20000 105 74-121 0.2 25 Pyruvic Acid 21000 70 ug/L 20000 103 44-137 2 25 Trimethylacetic acid 26000 u91L 20000 129 50-150 Classical Chemistry Parameters - Quality Control Batch 9D26046 - NO PREP Blank (9D36046-BLK3) Prepared: 04/15/2019 10:30 Analyzed: 04/16/2019 15:09 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Organic Carbon 340 U 1000 ug/L LCS (9D16046-BS1) Prepared: 04/15/2019 10:30 Analyzed: 04/16/2019 15:09 Spike Source %REC RPD Analvte Result Flaa Q Units Level Result %REC Limits RPD Limit Notes Total Organic Carbon 36000 1000 ug/L 40000 91 85-115 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 16 Of 23 (� �Eo www.encolabs.com QUALITY CONTROL DATA Classical Chemistry Parameters - Quality Control Batch 9D16046 - NO PREP - Continued Matrix Spike (9D16046-MS3) Prepared: 04/15/2019 10:30 Analyzed: 04/16/2019 15:09 Source: CCO5277-01 Spike Source %REC RPD Analvte Result Flag Q Units Level Result %REC Limits RPD Limit Notes Total Organic Carbon 39000 1000 ug/L 40000 1400 95 85-115 Matrix Spike Dup (91316046-MS131) Prepared: 04/15/2019 10:30 Analyzed: 04/16/2019 15:09 Source: CCO5277-01 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Total Organic Carbon 40000 1000 ug/L 40000 1400 97 85-115 3 21 Batch 9D18020 - NO PREP Blank (9D18020-BLK1) Prepared: 04/18/2019 17:00 Analyzed: 04/18/2019 18:46 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Total Organic Carbon 340 U 1000 ug/L LCS (911)18020-BSI) Prepared: 04/18/2019 17:00 Analyzed: 04/18/2019 18:46 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Total Organic Carbon 37000 1000 ug/L 40000 92 85-115 Matrix Spike (911318020-MS3) Prepared: 04/18/2019 17:00 Analyzed: 04/18/2019 18:46 Source: ACO2674-01 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Total Organic Carbon 44000 1000 ug/L 40000 7200 91 85-115 Matrix Spike Dup (9D18020-MSDI) Prepared: 04/18/2019 17:00 Analyzed: 04/18/2019 18:46 Source: ACO2674-01 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Total Organic Carbon 44000 1000 ug/L 40000 7200 92 85-115 1 21 Dissolved Gases by GC - Quality Control Batch 9D15011 - Same Blank (911)15011-BLKI) Prepared: 04/15/2019 17:27 Analyzed: 04/15/2019 18:20 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Ethane 1.30 U 2.00 ug/L Ethene 1.50 U 3.00 ug/L Methane 0.450 U 1.00 ug/L LCS (9D15011-BSI) Prepared: 04/15/2019 17:27 Analyzed: 04/15/2019 18:36 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Ethane 547 0.00200 mg/L 500 109 80-120 Ethene 554 0.00300 mg/L 500 111 80-120 Methane 546 0.00100 mg/L 500 109 80-120 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 17 Of 23 (� �Eo www.encolabs.com QUALITY CONTROL DATA Dissolved Gases by GC - Quality Control Batch 9D15011 - Same - Continued LCS Dup (9D35011-BSD3) Prepared: 04/15/2019 17:27 Analyzed: 04/15/2019 18:52 Spike Source %REC RPD Analvte Result Flaa Q Units Level Result %REC Limits RPD Limit Notes Ethane 547 0.00200 mg/L 500 109 80-120 0.1 25 Ethene 550 0.00300 mg/L 500 110 80-120 0.6 25 Methane 541 0.00100 mg/L 500 108 80-120 1 25 Duplicate (9D15011-DUP1) Prepared: 04/15/2019 17:27 Analyzed: 04/15/2019 20:43 Source: BC01563-02 Spike Source %REC RPD Analvte Result Flaa POL Units Level Result %REC Limits RPD Limit Notes Ethane 1.30 U 2.00 ug/L 1.30 U 25 Ethene 1.50 U 3.00 ug/L 1.50 U 25 Methane 0.461 J 1.00 ug/L 0.450 U 25 Duplicate (9D15011-DUP2) Prepared: 04/15/2019 17:27 Analyzed: 04/16/2019 10:34 Source: BC01564-01 Spike Source %REC RPD Analvte Result Flaa POL Units Level Result %REC Limits RPD Limit Notes Ethane 67.3 2.00 ug/L 44.0 42 25 QM-12 Ethene 123 3.00 ug/L 83.5 39 25 QM-12 Methane 4960 E 1.00 ug/L 3270 41 25 QM-12 Batch 9D15013 - Same Blank (911)15013-11311-11(3) Prepared: 04/15/2019 17:30 Analyzed: 04/18/2019 12:40 Spike Source %REC RPD Analvte Result Flaa POL Units Level Result %REC Limits RPD Limit Notes Ethane 1.30 U 2.00 ug/L Ethene 1.50 U 3.00 ug/L Methane 0.450 U 1.00 ug/L LCS (9D15013-BS1) Prepared: 04/15/2019 17:30 Analyzed: 04/18/2019 12:56 Spike Source %REC RPD Analvte Result Flaa POL Units Level Result %REC Limits RPD Limit Notes Ethane 538 0.00200 mg/L 500 108 80-120 Ethene 545 0.00300 mg/L 500 109 80-120 Methane 536 0.00100 mg/L 500 107 80-120 LCS Dup (9D15013-BSD1) Prepared: 04/15/2019 17:30 Analyzed: 04/18/2019 13:12 Spike Source %REC RPD Analvte Result Flaa POL Units Level Result %REC Limits RPD Limit Notes Ethane 535 0.00200 mg/L 500 107 80-120 0.6 25 Ethene 547 0.00300 mg/L 500 109 80-120 0.5 25 Methane 530 0.00100 mg/L 500 106 80-120 1 25 Duplicate (9D15013-DUP1) Prepared: 04/15/2019 17:30 Analyzed: 04/18/2019 14:16 Source: BC01635-01 Spike Source %REC RPD Analvte Result Flaa Q Units Level Result %REC Limits RPD Limit Notes Ethane 1.30 U 2.00 ug/L 1.30 U 25 Ethene 1.50 U 3.00 ug/L 1.50 U 25 Methane 1.63 1.00 ug/L 1.68 3 25 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 18 Of 23 (� �Eo www.encolabs.com FLAGS/NOTES AND DEFINITIONS B The analyte was detected in the associated method blank. D The sample was analyzed at dilution. J The reported value is between the laboratory method detection limit (MDL) and the laboratory method reporting limit (MRL), adjusted for actual sample preparation data and moisture content, where applicable. U The analyte was analyzed for but not detected to the level shown, adjusted for actual sample preparation data and moisture content, where applicable. E The concentration indicated for this analyte is an estimated value above the calibration range of the instrument. This value is considered an estimate. MRL Method Reporting Limit. The MRL is roughly equivalent to the practical quantitation limit (PQL) and is based on the low point of the calibration curve, when applicable, sample preparation factor, dilution factor, and, in the case of soil samples, moisture content. PQL PQL: Practical Quantitation Limit. The PQL presented is the laboratory MRL. N The analysis indicates the presence of an analyte for which there is presumptive evidence (85% or greater confidence) to make a "tentative identification". P Greater than 25% concentration difference was observed between the primary and secondary GC column. The lower concentration is reported. [CALC] Calculated analyte - MDL/MRL reported to the highest reporting limit of the component analyses. 3-01 Result may be biased high due to positive results in the associated method blank at a concentration above the MDL and/or greater than one-half the MRL. QB-02 The method blank contains analyte at a concentration above the MDL and/or greater than one-half the MRL. The analyte was not detected in the sample. QM-07 The spike recovery was outside acceptance limits for the MS and/or MSD. The batch was accepted based on acceptable LCS recovery. QM-12 Precision between duplicate samples was outside acceptance limits. QV-01 The associated continuing calibration verification standard exhibited high bias; since the result is ND, there is no impact. FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 19 of 23 3 5 n v: 'am n m 3 m a 3 ,4 $ ro m m :D m N ti a N 0 1 t r mm pp r° TL n � c� � n w ro. a S m m m C 7 AI n C7 01 !M1k. �^ �1-1.Ion I I Q ..a n C m_ x 4 x n 7 x M Uri OR ME,: a W f CxLn � a '�? '1 ►o m �Ga V! CD R .- rz ='7 0 m m N) O �m z::—, > R 0 O !?7 0 N 0. 0 w W x - LC CD A 8 fit Z r a m o V1 L O o /MD V � � �•�. �7 A � m �z_ Z Z m i CD @ y .� (r1 � [ m `u o 0 C , T z V I �•y1 v L A T (A eD bpi m 5. ` Pi = i ' y a p m z x m N m v�v 0 rn Z] � a N o Q Alkalinity 310.2,Chlortde 300,Nitrite as N m 3532 In N Fatty Acids n x -Z — NOX 353.2 v Z n C)pp `1 CC RSK J1 75 b .� N 's1 a 0 m 1 � � JJ/��- (-7 :* V R a s Sulfate 300 Q N Sulfide SM4500-S D M TOC SiV15310B 0 D Si T Cr r h o m� gg C m cL li o LT1 g o CD CL Q w H y .a Cu N Page 20 of 23 a Sample Preservation Verification ENCO Cary Work Order: CC05277 Client: Golder Associates, Inc- (GO007) Logged In: 09-Apr-19 15:24 EJ�ICO Project: White Street LF-Phase H MNA Project #: 1668421.103 Logged By: John C King ,. rr Preservation Check Performed By: 08 ❑aterrime: /t`C'Ie? /q-;-t) CC05277-01 Cont Type Pres (pH) 1 pH Checked 1 pH Adjusted QateRme Reagent Used/Comments Requirement In Control Adjusted E 250mLP+H2SO4 <2 Y I N I NA Y 1 NA F 25omLP+ZnAc+NaOH >9 Y I N I NA Y I[ 1 NA Reagent Name ID 1 2 pH Strip ID: L �z--;u L Rea ent Name I ❑ 3 4 Reagent Name ID 5 6 Page 21 of 23 CaELMNT1Printlwko_PreservationCheck.rpt e 1 N w m W '� •c � m 3 3 m H a v v v P ca ca a [a J a a C�7 n m � 'n `k C w n n W v w a ro ^ = tnR m �W W (D W z 0) m O i6m 3&�� 'y N ❑ � o � a � r�i ■ Wx J n, T m ❑ a �^ 5- �m o ro _� W � N 5 ::i l V W 1 W W I TOMIM IETIM G I 2, m; r c a m m° w ' l 00 d :D w N I m X m� ❑. I a I m N = C o I 3 Q 3 o v Q Q a Page 22 of 23 Sample Preservation Verification ENCO Cary Work Order: CC05937 Project: White Street LF-Phase II MNA Client: Golder Associates, Inc. (00007) Project #: 1668421,103 Logged In: 11-Apr-19 15:04 Logged By. John C King Preservation Check Performed By: Date/Time:`r�r� r Yc�CJ CCO5937-01 Cant Type Pres (pH) Requirement pH Checked/ In Control pH Adjusted DatWTime Adjusted Reagent UsedlComments E 250mLP+H2SO4 4 Y I N I NA Y 1; N.1 NA F 250mLP+ZnAc+NaOH >9 I N l NA Y I N 1 NA CCO5937-02 Cant Type Pres (pH) Requirement pH Checked 1 In Control pH Adjusted Cater ime Adjusted Reagent Used/Comments E 250mLP+H2SO4 <2 Y 1 N 1 NA Y l NA F 250mLP+ZnAc+NaOH >9 I N I NA Y I 1 NA CCO5937-03 Cant Type Pres (pH) Requirement pH Checked 1 In Control pH Adjusted DatelTime Adjusted Reagent Used/Comments E 250mLP+H2SO4 <2 l N I NA Y( 1 NA F 250mLP+ZnAc+NaOH >9 Y I N l NA Y I 1 NA Rea ent Name ID 1 2 pH Strip ID: -- Rea ent Narne I ❑ 3 4 Reagent Name ID 5 6 C:IBLMNTIPrintlwko_PreservationCheck.rpt I Page 23 of 23 e WORK ORDER Printed: 5/4/2019 11:09:52AM CC05277 ENCO Cary Sample Receipt Conditions Client: Golder Associates, Inc. (G0007) Lab Project Mgr: Stephanie Franz Project: White Street LF-Phase II MNA Project Number: 1668421.103 PO #: Report To: Invoice To: Golder Associates, Inc. (G0007) City of Greensboro (CI034) Dusty Reedy Richard Lovett 5B Oak Branch Drive 401 Patton Ave Greensboro, NC 27407 Greensboro, NC 27406 Phone: (336) 852-4903 Phone :(336) 373-4188 Fax: (336) 852-4904 Fax: Received By: Timothy J. Parker Date Received: 09-Apr-19 11:42 Logged In By: John C King Date Logged In: 09-Apr-19 15:24 Work Order Comments: C-1926 received at 1.0°C Containers Intact Y Containers Properly Preserved Y Proper Containers Received Y All Samples in PreLog Received Y COC/Labels Agree Y Custody Seals Intact Y Volatile Containers Preserved N Volatile Containers Headspace Free N Aqueous Samples Checked for Residual Cl N Received On Ice Y Temperature Corrected Y Reviewed By Date Page 1 of 1 WORK ORDER Printed: 5/4/2019 11:12:42AM CC05937 ENCO Cary Sample Receipt Conditions Client: Golder Associates, Inc. (G0007) Lab Project Mgr: Stephanie Franz Project: White Street LF-Phase II MNA Project Number: 1668421.103 PO #: Report To: Invoice To: Golder Associates, Inc. (G0007) City of Greensboro (CI034) Dusty Reedy Richard Lovett 5B Oak Branch Drive 401 Patton Ave Greensboro, NC 27407 Greensboro, NC 27406 Phone: (336) 852-4903 Phone :(336) 373-4188 Fax: (336) 852-4904 Fax: Received By: John C King Date Received: 11-Apr-19 08:00 Logged In By: John C King Date Logged In: 11-Apr-19 15:04 Work Order Comments: C-1926 received at 0.7°C Containers Intact Y Containers Properly Preserved Y Proper Containers Received Y All Samples in PreLog Received Y COC/Labels Agree Y Custody Seals Intact Y Volatile Containers Preserved N Volatile Containers Headspace Free N Aqueous Samples Checked for Residual Cl N Received On Ice Y Temperature Corrected Y Reviewed By Date Page 1 of 1 GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 1 of 3 Project Name: White Street Landfill — Phase II MNA Project Reference Number: 1668421.105 Sampling Event Date: April 8-13, 2019 Review Date: May 6, 2019 Report #. CC05277, CC05937 Signature: o Date: QA/QC Sign Off. Date: ,> GOLDER Initials: DC Person(s) performing the review are to initial each item on this form as acknowledgement of data acceptance, or as acknowledgement of a review issue. In the case of the latter, a brief explanation should follow the applicable item. Golder Associates Inc. has reviewed the laboratory certificates of analysis, chain -of -custody form, and laboratory provided sample group quality assurance and quality control data for the above referenced sample group to identify potential bias or inaccuracy, in general accordance with the following United States Environmental Protection Agency documents: Region III Modifications to Functional Guidelines for Organic Data Review Multi -Media, Multi -Concentration, September 1994; Region III Modifications to the Laboratory Data Validation Functional Guidelines for Evaluating Inorganic Analyses, April 1993; and Laboratory Data Validation Functional Guidelines for Evaluating Inorganic Analyses, July 1998. COMPLIANCE ANALYTE LIST(S) (check all that apply) NC Closed Facility/C & D List NC Appendix I NC Appendix I + Detects NC Appendix II NC Subtitle D Leachate List Other: MNA Parameters: Chloride, Nitrate, Sulfate, Sulfide, Ethene, Ethane, Methane, TOC, Alkalinity, Volatile Fatty Acids 1.0 CHAIN OF CUSTODY (COC) REVIEW DC COC was properly signed by all parties. DC Correct project name and number are on the form. ➢ Project number is listed as 1668421.103 should be 1668421.105 DC Sample receipt condition at laboratory was acceptable. DC Each sample and blank submitted for analysis appears in the report. GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 2 of 3 2.0 SAMPLE HOLDING TIMES DC Holding times for extraction and/or analysis were met for each analytical Method (see below for reference). GOLDER Review Criteria Method Anal es Holding Time SW-846 Method 8260 and 8011 VOCs 14 days SW-846 Methods 8270, 8080, 8081, 8082, and 8151 SVOCs, PCBs, pesticides and herbicides 7 days for extraction, 40 days from extraction for analysis SW-846 Methods 6000 and 7000 Series Metals except mercury 6 months (no temperature require ents SW-846 Method 7470 Mercury 28 days SW-846 Method 376.1 Sulfide 7 days SW-846 Method 9010 Cyanide 14 days EPA Method 300 Nitrate/Sulfate 48 hours/28 days EPA Method 405.1 BOD 48 hours EPA Method 410.4 COD 28 days EPA Method 365.4 Phosphorous 28 days 3.0 LABORATORY QUALITY CONTROL REVIEW DC Laboratory analyzed at least one internal blank for each method, where applicable. DC Laboratory blank is interference -free. DC Surrogate recoveries are provided for each analytical method, where applicable. DC Surrogate recoveries for each method are within the acceptable limits (i.e., at least 50% of the surrogates were within range). DC MS/MSD/LCS data results are provided for each analytical method. DC MS/MSD/LCS recoveries for each method are within the acceptable limits (i.e., at least 1 of the 3 were within range). ➢ The spike recoveries of Chloride, Nitrate/Nitrite (NOx), and Sulfate were outside of control limits for the MS and/or MSD samples. The QC batches were approved based on acceptable LCS recovery of these analytes. ➢ Precision between duplicate analyses of Ethane, Ethene and Methane exceeded accepted criteria. The QC batch was approved based on acceptable LCS recovery of these analytes. 4.0 ANALYTE LISTS/METHODS DC The proper number of constituents are present for each analyte list as identified above (including detects where applicable). DC Proper EPA SW-846 analytical methods were used for analysis. GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 3 of 3 5.0 DATA REPORTING GOLDER DC All analytical reporting associated with the event was performed by the contracted lab MG Trip, field and/or equipment, and laboratory blank results have all been reported. All detects for blanks are listed below by constituent. All laboratory method blanks, if any, have been `flagged' with a `B' where detected in other samples as appropriate and a laboratory narrative was provided. If the sample was flagged by the laboratory and is not within 5X of the concentration in the blank (or 1 OX for commonly detected laboratory contaminants -acetone, methylene chloride and phthalates), list below with explanation if flags should be removed. If flags need to be added for samples, also list below. ➢ Nitrite was detected in the Method Blank @ 42 ug/L (J) MG It is clear from the laboratory report that samples have or have not been diluted during analysis, and if the samples have been diluted, the result is reported as a multiple of the dilution (e.g., a sample diluted 1 Ox resulting in an analytical detection of 1.0 should be reported as 10). Those that have been diluted are listed below with the dilution factor. ➢ Chloride: II-1 (10x) ➢ Total Alkalinity as CaCO3: II-9 (2x), SMW-3 (2x), and 11-1 (5x) DC The report provides the reporting limit for each constituent. DC The results were reported at or below their proper reporting limits (e.g., NC Solid Waste Section Reporting Limits-SWSLs). Those that are not reported correctly are listed below (by constituent) with the proper reporting limit listed beside them. State if the reporting limit error is due to dilutions. DC No inorganic or organic constituents were reported above their respective NC 2L Drinking Water Standards or Groundwater Protection Standards (GPS) in wells or field/equipment/trip blanks or above applicable Surface Water Standards for surface water points. NC 2L Exceedances ➢ Chloride (NC 2L = 250,000 ug/L) II-1 @ 380,000 ug/L (D) DC No quantifiable inorganic or organic constituents were detected in a well or surface water point at concentrations outside of their historical range (more than 5X previous concentrations or first-time detections). DC Other report issues/Communications with laboratory/etc.: ➢ The Continuing Calibration Verification sample for the Fatty Acids analysis exhibited a high bias for iso-Hexanoic Acid; however, this analyte was not detected in the associated samples, reducing the impact of the deviation. ENCO Laboratones Accurate. Timely. Responsive. Innovative. 102-A Woodwinds Industrial Court Cary NC, 27511 Phone: 919.467.3090 FAX: 919.467.3515 Thursday, April 25, 2019 Golder Associates, Inc. (GO007) Attn: Dusty Reedy 5B Oak Branch Drive Greensboro, NC 27407 RE: Laboratory Results for Project Number: 1668421.105, Project Name/Desc: White Street LF-Phase II Non -Routine ENCO Workorder(s): CC05278,CC06043,CC06074 Dear Dusty Reedy, Enclosed is a copy of your laboratory report for test samples received by our laboratory between Thursday, April 11, 2019 and Monday, April 15, 2019. Unless otherwise noted in an attached project narrative, all samples were received in acceptable condition and processed in accordance with the referenced methods/procedures. Results for these procedures apply only to the samples as submitted. The analytical results contained in this report are in compliance with NELAC standards, except as noted in the project narrative if applicable. This report shall not be reproduced except in full, without the written approval of the Laboratory. This report contains only those analyses performed by Environmental Conservation Laboratories. Unless otherwise noted, all analyses were performed at ENCO Cary. Data from outside organizations will be reported under separate cover. If you have any questions or require further information, please do not hesitate to contact me. Sincerely, Stephanie Franz Project Manager Enclosure(s) FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 1 of 36 PROJECT NARRATIVE Date: 25 April 2019 Client: Golder Associates, Inc. (G0007) Project: White Street LF-Phase II Non -Routine Lab ID: CC05278, CC06043, CC06074 Overview (� �Eo www.encolabs.com Environmental Conservation Laboratories, Inc. (ENCO) analyzed all submitted samples in accordance with the methods referenced in the laboratory report. Any particular difficulties encountered during sample handling by ENCO are discussed in the QC Remarks section below. Quality Control Samples The spike recoveries of Benzene and Trichloroethene were outside of control limits for the 8260D MS and/or MSD samples. The QC batches were approved based on acceptable LCS recovery of these analytes. LCS/LCSD were analyzed in place of the MS/MSD for the 8260D SIM analysis for 1,4-Dioxane. Quality Control Remarks The 8260D SIM surrogate spike recovery of Toluene-d8 exceeded acceptance critieria for the Trip Blank. Other Comments All samples received under this project arrived in acceptable conditions. The samples were not checked for residual chlorine, as it is not required. The analytical data presented in this report are consistent with the methods as referenced in the analytical report. Any exceptions or deviations are noted in the QC remarks section of this narrative or in the Flags/Notes and Definitions section of the report. Released By: Environmental Conservation Laboratories, Inc. Stephanie Franz Project Manager FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 2 of 36 (� �Eo www.encolabs.com SAMPLE SUMMARY/LABORATORY CHRONICLE Client ID: 4303-SMW3 Lab ID: CCO5278-01 Sampled: 04/10/19 12:27 Received: 04/11/19 08:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 10/07/19 04/18/19 08:26 04/19/19 11:22 EPA 6020B EPA 3005A 10/07/19 04/16/19 08:07 04/18/19 10:27 EPA 8260D EPA 503013_MS 04/24/19 04/11/19 15:25 04/12/19 05:13 EPA 8260D EPA 503013_MS 04/24/19 04/12/19 00:00 04/12/19 21:02 Client ID: 4303-SMW4 Lab ID: CCO5278-02 Sampled: 04/10/19 16:11 Received: 04/11/19 08:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 10/07/19 04/18/19 08:26 04/19/19 11:30 EPA 6020B EPA 3005A 10/07/19 04/16/19 08:07 04/18/19 10:41 EPA 8260D EPA 5030B_MIS 04/24/19 04/11/19 15:25 04/12/19 05:45 EPA 8260D EPA 503013_MS 04/24/19 04/12/19 00:00 04/12/19 21:38 Client ID: 4103-II9 Lab ID: CCO5278-03 Sampled: 04/10/19 10:00 Received: 04/11/19 08:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 10/07/19 04/18/19 08:26 04/19/19 11:32 EPA 6010D EPA 3005A 10/07/19 04/18/19 08:26 04/19/19 11:37 EPA 6020E EPA 3005A 10/07/19 04/16/19 08:07 04/18/19 10:45 EPA 8260D EPA 503013_MS 04/24/19 04/11/19 15:25 04/12/19 06:16 EPA 8260D EPA 5030B_MIS 04/24/19 04/12/19 00:00 04/12/19 22:13 Client ID: 4303-II3B Lab ID: CC06043-01 Sampled: 04/11/19 14:03 Received: 04/12/19 10:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 10/08/19 04/20/19 13:50 04/23/19 13:47 EPA 6020B EPA 3005A 10/08/19 04/18/19 16:07 04/19/19 14:05 EPA 8260D EPA 503013_MS 04/25/19 04/18/19 00:00 04/18/19 15:31 EPA 8260D EPA 503013_MS 04/25/19 04/18/19 16:33 04/19/19 14:40 Client ID: 4103-SMW1 Lab ID: CC06074-01 Sampled: 04/12/19 11:24 Received: 04/15/19 10:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 10/09/19 04/22/19 11:11 04/24/19 16:11 EPA 6020B EPA 3005A 10/09/19 04/18/19 16:07 04/19/19 14:10 EPA 8260D EPA 5030B_MS 04/26/19 04/18/19 00:00 04/18/19 20:21 EPA 8260D EPA 503013_MS 04/26/19 04/19/19 11:31 04/20/19 03:51 Client ID: 4103-Trip Blank Lab ID: CC06074-02 Sampled: 04/12/19 11:24 Received: 04/15/19 10:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260D EPA 503013_MS 04/26/19 04/18/19 00:00 04/18/19 20:57 EPA 8260D EPA 503013_MS 04/26/19 04/19/19 11:31 04/20/19 04:23 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 3 Of 36 (� �Eo www.encolabs.com SAMPLE DETECTION SUMMARY Client ID: 4303-SMW3 Lab ID: CC05278-01 Anala Results Flag MDL POLL Units Method Notes 1,1-Dichloroethane 4.2 0.13 1.0 ug/L EPA 8260D 1,4-Dioxane 2.2 1.2 2.0 ug/L EPA 8260D Barium - Total 351 1.10 10.0 ug/L EPA 6010D cis-1,2-Dichloroethene 14 0.15 1.0 ug/L EPA 8260D Cobalt - Total 3.16 1 1.40 10.0 ug/L EPA 6010D Vanadium - Total 2.62 1 1.40 10.0 ug/L EPA 6010D Vinyl chloride 1.1 0.32 1.0 ug/L EPA 8260D Client ID: 4103-SMW4 Lab ID: CC05278-02 Anala Results Flag MDL POLL Units Method Notes 1,4-Dioxane 12 1.2 2.0 ug/L EPA 8260D Barium - Total 53.2 1.10 10.0 ug/L EPA 6010D Client ID: 4103-II9 Lab ID: CC05278-03 Anala Results Flag MDL POLL Units Method Notes 1,1-Dichloroethane 0.41 1 0.13 1.0 ug/L EPA 8260D Barium - Total 78.9 1.10 10.0 ug/L EPA 6010D Cadmium - Total 0.368 1 0.360 1.00 ug/L EPA 6010D cis-1,2-Dichloroethene 0.55 1 0.15 1.0 ug/L EPA 8260D Cobalt - Total 5.42 1 1.40 10.0 ug/L EPA 6010D Copper - Total 4.02 1 1.60 10.0 ug/L EPA 6010D Nickel - Total 4.58 1 2.20 10.0 ug/L EPA 6010D Vanadium - Total 1.74 1 1.40 10.0 ug/L EPA 6010D Zinc - Total 78.1 4.40 10.0 ug/L EPA 6010D Client ID: 4103-II3111 Lab ID: CC06043-01 Anala Results Flag MDL POLL Units Method Notes 1,1-Dichloroethane 0.66 1 0.13 1.0 ug/L EPA 8260D 1,4-Dioxane 3.9 1.2 2.0 ug/L EPA 8260D Barium - Total 177 1.10 10.0 ug/L EPA 6010D Chromium - Total 1.57 1 1.40 10.0 ug/L EPA 6010D Cobalt - Total 2.77 1 1.40 10.0 ug/L EPA 6010D Lead - Total 4.86 1 3.10 10.0 ug/L EPA 6010D Nickel - Total 4.42 1 2.20 10.0 ug/L EPA 6010D Zinc - Total 5.37 1 4.40 10.0 ua/L EPA 6010D Client ID: 4103-SMWI Lab ID: CC06074-01 Anala Results Flag MDL POLL Units Method Notes 1,4-Dioxane 4.9 1.2 2.0 ug/L EPA 8260D Barium - Total 233 1.10 10.0 ug/L EPA 6010D Cadmium - Total 15.0 0.360 1.00 ug/L EPA 6010D Chromium - Total 3.38 1 1.40 10.0 ug/L EPA 6010D Cobalt - Total 8.20 1 1.40 10.0 ug/L EPA 6010D Copper - Total 14.9 1.60 10.0 ug/L EPA 6010D Nickel - Total 6.58 1 2.20 10.0 ug/L EPA 6010D Vanadium - Total 2.15 1 1.40 10.0 ug/L EPA 6010D Zinc - Total 899 4.40 10.0 ug/L EPA 6010D FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 4 Of 36 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4103-SMW3 Lab Sample ID:CC05278-01 Received: 04/11/19 08:00 Matrix: Ground Water Sampled:04/10/19 12:27 Work Order: CCO5278 Project: White Street LF-Phase II Non -Routine Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flao Units DF MDL Q Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 9DII024 EPA 8260D 04/12/19 05:13 MRK 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 9DII024 EPA 8260D 04/12/19 05:13 MRK 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 9DII024 EPA 8260D 04/12/19 05:13 MRK 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 9DII024 EPA 8260D 04/12/19 05:13 MRK 1,1-Dichloroethane [75-34-3]A 4.2 ug/L 1 0.13 1.0 9D11024 EPA 8260D 04/12/19 05:13 MRK 1,1-Dichloroethene [75-35-4]A 0.21 U ug/L 1 0.21 1.0 9DII024 EPA 8260D 04/12/19 05:13 MRK 1,2,3-Trichloropropane [96-18-4]A 0.23 U ug/L 1 0.23 1.0 9DII024 EPA 8260D 04/12/19 05:13 MRK 1,2-Dibromo-3-chloropropane [96-12-8]A 0.48 U ug/L 1 0.48 1.0 9DII024 EPA 8260D 04/12/19 05:13 MRK 1,2-Dibromoethane [106-93-4]A 0.66 U ug/L 1 0.66 1.0 9DII024 EPA 8260D 04/12/19 05:13 MRK 1,2-Dichlorobenzene [95-50-1]A 0.19 U ug/L 1 0.19 1.0 9DII024 EPA 8260D 04/12/19 05:13 MRK 1,2-Dichloroethane [107-06-2]A 0.21 U ug/L 1 0.21 1.0 9DII024 EPA 8260D 04/12/19 05:13 MRK 1,2-Dichloropropane [78-87-5]A 0.10 U ug/L 1 0.10 1.0 9DII024 EPA 8260D 04/12/19 05:13 MRK 1,4-Dichlorobenzene [106-46-7]A 0.19 U ug/L 1 0.19 1.0 9DII024 EPA 8260D 04/12/19 05:13 MRK 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 9DII024 EPA 8260D 04/12/19 05:13 MRK 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 9DII024 EPA 8260D 04/12/19 05:13 MRK 4-Methyl-2-pentanone [108-10-1]A 1.1 U ug/L 1 1.1 5.0 9DII024 EPA 8260D 04/12/19 05:13 MRK Acetone [67-64-1]A 10 U ug/L 1 10 20 9DII024 EPA 8260D 04/12/19 05:13 MRK Acrylonitrile [107-13-1]A 3.5 U ug/L 1 3.5 10 9DII024 EPA 8260D 04/12/19 05:13 MRK Benzene[71-43-2]A 0.15 U ug/L 1 0.15 1.0 9DII024 EPA 8260D 04/12/19 05:13 MRK Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 9DII024 EPA 8260D 04/12/19 05:13 MRK Bromodichloromethane [75-27-4]A 0.17 U ug/L 1 0.17 1.0 9DII024 EPA 8260D 04/12/19 05:13 MRK Bromoform [75-25-2]A 0.22 U ug/L 1 0.22 1.0 9DII024 EPA 8260D 04/12/19 05:13 MRK Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 9DII024 EPA 8260D 04/12/19 05:13 MRK Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 9DII024 EPA 8260D 04/12/19 05:13 MRK Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 9DII024 EPA 8260D 04/12/19 05:13 MRK Chlorobenzene [108-90-7]A 0.17 U ug/L 1 0.17 1.0 9DII024 EPA 8260D 04/12/19 05:13 MRK Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 9DII024 EPA 8260D 04/12/19 05:13 MRK Chloroform [67-66-3]A 0.18 U ug/L 1 0.18 1.0 9DII024 EPA 8260D 04/12/19 05:13 MRK Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 9DII024 EPA 8260D 04/12/19 05:13 MRK cis-1,2-Dichloroethene [156-59-2]A 14 ug/L 1 0.15 1.0 9D11024 EPA 8260D 04/12/19 05:13 MRK cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 9DII024 EPA 8260D 04/12/19 05:13 MRK Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 9DII024 EPA 8260D 04/12/19 05:13 MRK Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 9DII024 EPA 8260D 04/12/19 05:13 MRK Ethylbenzene [100-41-4]A 0.13 U ug/L 1 0.13 1.0 9DII024 EPA 8260D 04/12/19 05:13 MRK Iodomethane [74-88-4]A 1.7 U ug/L 1 1.7 5.0 9DII024 EPA 8260D 04/12/19 05:13 MRK Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 9DII024 EPA 8260D 04/12/19 05:13 MRK Styrene [100-42-5]A 0.11 U ug/L 1 0.11 1.0 9DII024 EPA 8260D 04/12/19 05:13 MRK Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 9DII024 EPA 8260D 04/12/19 05:13 MRK Toluene [108-88-3]A 0.14 U ug/L 1 0.14 1.0 9DII024 EPA 8260D 04/12/19 05:13 MRK trans-1,2-Dichloroethene [156-60-5]A 0.21 U ug/L 1 0.21 1.0 9DII024 EPA 8260D 04/12/19 05:13 MRK trans-1,3-Dichloropropene [10061-02-6]A 0.15 U ug/L 1 0.15 1.0 9DII024 EPA 8260D 04/12/19 05:13 MRK trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 9DII024 EPA 8260D 04/12/19 05:13 MRK Trichloroethene [79-01-6]A 0.15 U ug/L 1 0.15 1.0 9DII024 EPA 8260D 04/12/19 05:13 MRK Trichlorofluoromethane [75-69-4]A 0.24 U ug/L 1 0.24 1.0 9DII024 EPA 8260D 04/12/19 05:13 MRK Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 9DII024 EPA 8260D 04/12/19 05:13 MRK Vinyl chloride [75-01-4]A 1.1 ug/L 1 0.32 1.0 9D11024 EPA 8260D 04/12/19 05:13 MRK Xylenes (Total) [1330-20-7]A 0.45 U ug/L 1 0.45 3.0 9DII024 EPA 8260D 04/12/19 05:13 MRK FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 5 of 36 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-SMW3 Lab Sample ID:CC05278-01 Received: 04/11/19 08:00 Matrix: Ground Water Sampled:04/10/19 12:27 Work Order: CC05278 Project: White Street LF-Phase II Non -Routine Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed Notes 4-Bromofluorobenzene 58 1 50.0 116 % 53-136 9D1 i024 EPA 8260D 04112119 05:13 MRK Dlbromofluoromethane 49 1 50.0 98 % 67-129 9D1 i024 EPA 8260D 04112119 05:13 MRK Toluene-& 57 1 50.0 113 % 59-134 9D1 i024 EPA 8260D 04112119 05:13 MRK Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 9D16005 EPA 6020E 04/18/19 10:27 CMK Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 9D18010 EPA 6010D 04/19/19 11:22 ]DH Barium [7440-39-3]^ 351 ug/L 1 1.10 10.0 9D18010 EPA 6010D 04/19/19 11:22 ]DH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 9D18010 EPA 6010D 04/19/19 11:22 ]DH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 9D18010 EPA 6010D 04/19/19 11:22 ]DH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 9D18010 EPA 6010D 04/19/19 11:22 ]DH Cobalt[7440-48-4]^ 3.16 J ug/L 1 1.40 10.0 9D18010 EPA 6010D 04/19/19 11:22 ]DH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 9D18010 EPA 6010D 04/19/19 11:22 ]DH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 9D18010 EPA 6010D 04/19/19 11:22 ]DH Nickel[7440-02-0]^ 2.20 U ug/L 1 2.20 10.0 9D18010 EPA 6010D 04/19/19 11:22 ]DH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 9D18010 EPA 6010D 04/19/19 11:22 ]DH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 9D18010 EPA 6010D 04/19/19 11:22 ]DH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 9D16005 EPA 6020E 04/18/19 10:27 CMK Vanadium [7440-62-2]^ 2.62 J ug/L 1 1.40 10.0 9D18010 EPA 6010D 04/19/19 11:22 ]DH Zinc[7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 9D18010 EPA 6010D 04/19/19 11:22 ]DH Volatile Organic Compounds by GCMS SIM Isotope Dilution Analyte rCAS Numberl 1,4-Dioxane [123-91-1] Surrogates Toluene-d8 Results Flag Units DF MDL P L Batch Method Analyzed By Notes 2.2 ug/L 1 1.2 2.0 9D12022 EPA 8260D 04/12/19 21:02 KKW Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes 5.6 1 5.00 112 % 75-125 9D12022 EPA 8260D 04112119 21:02 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 6 Of 36 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4103-SMW4 Lab Sample ID:CC05278-02 Received: 04/11/19 08:00 Matrix: Ground Water Sampled:04/10/19 16:11 Work Order: CCO5278 Project: White Street LF-Phase II Non -Routine Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flao Units DF MDL Q Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]^ 0.17 U ug/L 1 0.17 1.0 9DII024 EPA 8260D 04/12/19 05:45 MRK 1,1,1-Trichloroethane [71-55-6]^ 0.12 U ug/L 1 0.12 1.0 9DII024 EPA 8260D 04/12/19 05:45 MRK 1,1,2,2-Tetrachloroethane [79-34-5]^ 0.28 U ug/L 1 0.28 1.0 9DII024 EPA 8260D 04/12/19 05:45 MRK 1,1,2-Trichloroethane [79-00-5]^ 0.14 U ug/L 1 0.14 1.0 9DII024 EPA 8260D 04/12/19 05:45 MRK 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 9DII024 EPA 8260D 04/12/19 05:45 MRK 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 9DII024 EPA 8260D 04/12/19 05:45 MRK 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 9DII024 EPA 8260D 04/12/19 05:45 MRK 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 9DII024 EPA 8260D 04/12/19 05:45 MRK 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 9DII024 EPA 8260D 04/12/19 05:45 MRK 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 9DII024 EPA 8260D 04/12/19 05:45 MRK 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 9DII024 EPA 8260D 04/12/19 05:45 MRK 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 9DII024 EPA 8260D 04/12/19 05:45 MRK 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 9DII024 EPA 8260D 04/12/19 05:45 MRK 2-Butanone [78-93-3]^ 1.3 U ug/L 1 1.3 5.0 9DII024 EPA 8260D 04/12/19 05:45 MRK 2-Hexanone [591-78-6]^ 0.88 U ug/L 1 0.88 5.0 9DII024 EPA 8260D 04/12/19 05:45 MRK 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 9DII024 EPA 8260D 04/12/19 05:45 MRK Acetone [67-64-1]^ 10 U ug/L 1 10 20 9DII024 EPA 8260D 04/12/19 05:45 MRK Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 9DII024 EPA 8260D 04/12/19 05:45 MRK Benzene[71-43-2]^ 0.15 U ug/L 1 0.15 1.0 9DII024 EPA 8260D 04/12/19 05:45 MRK Bromochloromethane [74-97-5]^ 0.48 U ug/L 1 0.48 1.0 9DII024 EPA 8260D 04/12/19 05:45 MRK Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 9DII024 EPA 8260D 04/12/19 05:45 MRK Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 9DII024 EPA 8260D 04/12/19 05:45 MRK Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 9DII024 EPA 8260D 04/12/19 05:45 MRK Carbon disulfide [75-15-0]^ 1.5 U ug/L 1 1.5 5.0 9DII024 EPA 8260D 04/12/19 05:45 MRK Carbon tetrachloride [56-23-5]^ 0.17 U ug/L 1 0.17 1.0 9DII024 EPA 8260D 04/12/19 05:45 MRK Chlorobenzene [108-90-7]^ 0.17 U ug/L 1 0.17 1.0 9DII024 EPA 8260D 04/12/19 05:45 MRK Chloroethane [75-00-3]^ 0.23 U ug/L 1 0.23 1.0 9DII024 EPA 8260D 04/12/19 05:45 MRK Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 9DII024 EPA 8260D 04/12/19 05:45 MRK Chloromethane [74-87-3]^ 0.13 U ug/L 1 0.13 1.0 9DII024 EPA 8260D 04/12/19 05:45 MRK cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 9DII024 EPA 8260D 04/12/19 05:45 MRK cis-1,3-Dichloropropene [10061-01-5]^ 0.20 U ug/L 1 0.20 1.0 9DII024 EPA 8260D 04/12/19 05:45 MRK Dibromochloromethane [124-48-1]^ 0.17 U ug/L 1 0.17 1.0 9DII024 EPA 8260D 04/12/19 05:45 MRK Dibromomethane [74-95-3]^ 0.27 U ug/L 1 0.27 1.0 9DII024 EPA 8260D 04/12/19 05:45 MRK Ethylbenzene [100-41-4]^ 0.13 U ug/L 1 0.13 1.0 9DII024 EPA 8260D 04/12/19 05:45 MRK Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 9DII024 EPA 8260D 04/12/19 05:45 MRK Methylene chloride [75-09-2]^ 0.23 U ug/L 1 0.23 1.0 9DII024 EPA 8260D 04/12/19 05:45 MRK Styrene [100-42-5]^ 0.11 U ug/L 1 0.11 1.0 9DII024 EPA 8260D 04/12/19 05:45 MRK Tetrachloroethene [127-18-4]^ 0.17 U ug/L 1 0.17 1.0 9DII024 EPA 8260D 04/12/19 05:45 MRK Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 9DII024 EPA 8260D 04/12/19 05:45 MRK trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 9DII024 EPA 8260D 04/12/19 05:45 MRK trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 9DII024 EPA 8260D 04/12/19 05:45 MRK trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 U ug/L 1 0.70 1.0 9DII024 EPA 8260D 04/12/19 05:45 MRK Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 9DII024 EPA 8260D 04/12/19 05:45 MRK Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 9DII024 EPA 8260D 04/12/19 05:45 MRK Vinyl acetate [108-05-4]^ 0.95 U ug/L 1 0.95 5.0 9DII024 EPA 8260D 04/12/19 05:45 MRK Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 9DII024 EPA 8260D 04/12/19 05:45 MRK Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 9DII024 EPA 8260D 04/12/19 05:45 MRK FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 7 of 36 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-SMW4 Lab Sample ID:CC05278-02 Received: 04/11/19 08:00 Matrix: Ground Water Sampled:04/10/19 16:11 Work Order: CC05278 Project: White Street LF-Phase II Non -Routine Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed Notes 4-Bromofluorobenzene 56 1 50.0 112 % 53-136 9D1 i024 EPA 8260D 04112119 05:45 MRK Dlbromofluoromethane 50 1 50.0 99 % 67-129 9D1 i024 EPA 8260D 04112119 05:45 MRK Toluene-& 57 1 50.0 113 % 59-134 9D1 i024 EPA 8260D 04112119 05:45 MRK Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte MAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 9D16005 EPA 6020E 04/18/19 10:41 CMK Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 9D18010 EPA 6010D 04/19/19 11:30 ]DH Barium [7440-39-3]^ 53.2 ug/L 1 1.10 10.0 9D18010 EPA 6010D 04/19/19 11:30 ]DH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 9D18010 EPA 6010D 04/19/19 11:30 ]DH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 9D18010 EPA 6010D 04/19/19 11:30 ]DH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 9D18010 EPA 6010D 04/19/19 11:30 ]DH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 9D18010 EPA 6010D 04/19/19 11:30 ]DH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 9D18010 EPA 6010D 04/19/19 11:30 ]DH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 9D18010 EPA 6010D 04/19/19 11:30 ]DH Nickel[7440-02-0]^ 2.20 U ug/L 1 2.20 10.0 9D18010 EPA 6010D 04/19/19 11:30 ]DH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 9D18010 EPA 6010D 04/19/19 11:30 ]DH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 9D18010 EPA 6010D 04/19/19 11:30 ]DH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 9D16005 EPA 6020E 04/18/19 10:41 CMK Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 9D18010 EPA 6010D 04/19/19 11:30 ]DH Zinc[7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 9D18010 EPA 6010D 04/19/19 11:30 ]DH Volatile Organic Compounds by GCMS SIM Isotope Dilution Analyte MAS Numberl 1,4-Dioxane [123-91-1] Surrogates Toluene-d8 Results Flag Units DF MDL P L Batch Method Analyzed By Notes 12 ug/L 1 1.2 2.0 9D12022 EPA 8260D 04/12/19 21:38 KKW Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes 5.6 1 5.00 ill % 75-125 9D12022 EPA 8260D 0411211921:38 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 8 Of 36 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4103-II9 Lab Sample ID:CC05278-03 Received: 04/11/19 08:00 Matrix: Ground Water Sampled:04/10/19 10:00 Work Order: CCO5278 Project: White Street LF-Phase II Non -Routine Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flao Units DF MDL Q Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 9DII024 EPA 8260D 04/12/19 06:16 MRK 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 9DII024 EPA 8260D 04/12/19 06:16 MRK 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 9DII024 EPA 8260D 04/12/19 06:16 MRK 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 9DII024 EPA 8260D 04/12/19 06:16 MRK 1,1-Dichloroethane [75-34-3]A 0.41 J ug/L 1 0.13 1.0 9D11024 EPA 8260D 04/12/19 06:16 MRK 1,1-Dichloroethene [75-35-4]A 0.21 U ug/L 1 0.21 1.0 9DII024 EPA 8260D 04/12/19 06:16 MRK 1,2,3-Trichloropropane [96-18-4]A 0.23 U ug/L 1 0.23 1.0 9DII024 EPA 8260D 04/12/19 06:16 MRK 1,2-Dibromo-3-chloropropane [96-12-8]A 0.48 U ug/L 1 0.48 1.0 9DII024 EPA 8260D 04/12/19 06:16 MRK 1,2-Dibromoethane [106-93-4]A 0.66 U ug/L 1 0.66 1.0 9DII024 EPA 8260D 04/12/19 06:16 MRK 1,2-Dichlorobenzene [95-50-1]A 0.19 U ug/L 1 0.19 1.0 9DII024 EPA 8260D 04/12/19 06:16 MRK 1,2-Dichloroethane [107-06-2]A 0.21 U ug/L 1 0.21 1.0 9DII024 EPA 8260D 04/12/19 06:16 MRK 1,2-Dichloropropane [78-87-5]A 0.10 U ug/L 1 0.10 1.0 9DII024 EPA 8260D 04/12/19 06:16 MRK 1,4-Dichlorobenzene [106-46-7]A 0.19 U ug/L 1 0.19 1.0 9DII024 EPA 8260D 04/12/19 06:16 MRK 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 9DII024 EPA 8260D 04/12/19 06:16 MRK 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 9DII024 EPA 8260D 04/12/19 06:16 MRK 4-Methyl-2-pentanone [108-10-1]A 1.1 U ug/L 1 1.1 5.0 9DII024 EPA 8260D 04/12/19 06:16 MRK Acetone [67-64-1]A 10 U ug/L 1 10 20 9DII024 EPA 8260D 04/12/19 06:16 MRK Acrylonitrile [107-13-1]A 3.5 U ug/L 1 3.5 10 9DII024 EPA 8260D 04/12/19 06:16 MRK Benzene[71-43-2]A 0.15 U ug/L 1 0.15 1.0 9DII024 EPA 8260D 04/12/19 06:16 MRK Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 9DII024 EPA 8260D 04/12/19 06:16 MRK Bromodichloromethane [75-27-4]A 0.17 U ug/L 1 0.17 1.0 9DII024 EPA 8260D 04/12/19 06:16 MRK Bromoform [75-25-2]A 0.22 U ug/L 1 0.22 1.0 9DII024 EPA 8260D 04/12/19 06:16 MRK Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 9DII024 EPA 8260D 04/12/19 06:16 MRK Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 9DII024 EPA 8260D 04/12/19 06:16 MRK Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 9DII024 EPA 8260D 04/12/19 06:16 MRK Chlorobenzene [108-90-7]A 0.17 U ug/L 1 0.17 1.0 9DII024 EPA 8260D 04/12/19 06:16 MRK Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 9DII024 EPA 8260D 04/12/19 06:16 MRK Chloroform [67-66-3]A 0.18 U ug/L 1 0.18 1.0 9DII024 EPA 8260D 04/12/19 06:16 MRK Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 9DII024 EPA 8260D 04/12/19 06:16 MRK cis-1,2-Dichloroethene [156-59-2]A 0.55 1 ug/L 1 0.15 1.0 9D11024 EPA 8260D 04/12/19 06:16 MRK cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 9DII024 EPA 8260D 04/12/19 06:16 MRK Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 9DII024 EPA 8260D 04/12/19 06:16 MRK Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 9DII024 EPA 8260D 04/12/19 06:16 MRK Ethylbenzene [100-41-4]A 0.13 U ug/L 1 0.13 1.0 9DII024 EPA 8260D 04/12/19 06:16 MRK Iodomethane [74-88-4]A 1.7 U ug/L 1 1.7 5.0 9DII024 EPA 8260D 04/12/19 06:16 MRK Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 9DII024 EPA 8260D 04/12/19 06:16 MRK Styrene [100-42-5]A 0.11 U ug/L 1 0.11 1.0 9DII024 EPA 8260D 04/12/19 06:16 MRK Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 9DII024 EPA 8260D 04/12/19 06:16 MRK Toluene [108-88-3]A 0.14 U ug/L 1 0.14 1.0 9DII024 EPA 8260D 04/12/19 06:16 MRK trans-1,2-Dichloroethene [156-60-5]A 0.21 U ug/L 1 0.21 1.0 9DII024 EPA 8260D 04/12/19 06:16 MRK trans-1,3-Dichloropropene [10061-02-6]A 0.15 U ug/L 1 0.15 1.0 9DII024 EPA 8260D 04/12/19 06:16 MRK trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 9DII024 EPA 8260D 04/12/19 06:16 MRK Trichloroethene [79-01-6]A 0.15 U ug/L 1 0.15 1.0 9DII024 EPA 8260D 04/12/19 06:16 MRK Trichlorofluoromethane [75-69-4]A 0.24 U ug/L 1 0.24 1.0 9DII024 EPA 8260D 04/12/19 06:16 MRK Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 9DII024 EPA 8260D 04/12/19 06:16 MRK Vinyl chloride [75-01-4]A 0.32 U ug/L 1 0.32 1.0 9DII024 EPA 8260D 04/12/19 06:16 MRK Xylenes (Total) [1330-20-7]A 0.45 U ug/L 1 0.45 3.0 9DII024 EPA 8260D 04/12/19 06:16 MRK FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 9 of 36 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-II9 Lab Sample ID:CC05278-03 Received: 04/11/19 08:00 Matrix: Ground Water Sampled:04/10/19 10:00 Work Order: CC05278 Project: White Street LF-Phase II Non -Routine Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed Notes 4-Bromofluorobenzene 59 1 50.0 118 % 53-136 9D1 i024 EPA 8260D 04112119 06:16 MRK Dlbromofluoromethane 46 1 50.0 91 % 67-129 9D1 i024 EPA 8260D 04112119 06:16 MRK Toluene-& 57 1 50.0 115 % 59-134 9D1 i024 EPA 8260D 04112119 06:16 MRK Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 9D16005 EPA 6020E 04/18/19 10:45 CM K Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 9D18010 EPA 6010D 04/19/19 11:37 ]DH Barium [7440-39-3]^ 78.9 ug/L 1 1.10 10.0 9D18010 EPA 6010D 04/19/19 11:37 ]DH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 9D18010 EPA 6010D 04/19/19 11:37 ]DH Cadmium [7440-43-9]^ 0.368 J ug/L 1 0.360 1.00 9D18010 EPA 6010D 04/19/19 11:37 ]DH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 9D18010 EPA 6010D 04/19/19 11:37 ]DH Cobalt[7440-48-4]^ 5.42 J ug/L 1 1.40 10.0 9D18010 EPA 6010D 04/19/19 11:37 ]DH Copper[7440-50-8]^ 4.02 J ug/L 1 1.60 10.0 9D18010 EPA 6010D 04/19/19 11:37 ]DH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 9D18010 EPA 6010D 04/19/19 11:37 ]DH Nickel[7440-02-O]^ 4.58 J ug/L 1 2.20 10.0 9D18010 EPA 6010D 04/19/19 11:37 ]DH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 9D18010 EPA 6010D 04/19/19 11:37 ]DH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 9D18010 EPA 6010D 04/19/19 11:37 ]DH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 9D16005 EPA 6020E 04/18/19 10:45 CM K Vanadium [7440-62-2]^ 1.74 J ug/L 1 1.40 10.0 9D18010 EPA 6010D 04/19/19 11:32 ]DH Zinc[7440-66-6]^ 78.1 ug/L 1 4.40 10.0 9D18010 EPA 6010D 04/19/19 11:32 ]DH Volatile Organic Compounds by GCMS SIM Isotope Dilution Analyte rCAS Numberl 1,4-Dioxane [123-91-1] Surrogates Toluene-d8 Results Flag Units DF MDL P L Batch Method Analyzed By Notes 1.2 U ug/L 1 1.2 2.0 9D12022 EPA 8260D 04/12/19 22:13 KKW Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes 5.9 1 5.00 118 % 75-125 9D12022 EPA 8260D 04112119 22:13 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 10 Of 36 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-II3B Lab Sample ID:CC06043-01 Received: 04/12/19 10:30 Matrix: Ground Water Sampled:04/11/19 14:03 Work Order: CC06043 Project: White Street LF-Phase II Non -Routine Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte ICAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]^ 0.17 U ug/L 1 0.17 1.0 9D18042 EPA 8260D 04/19/19 14:40 MRK 1,1,1-Trichloroethane [71-55-6]^ 0.12 U ug/L 1 0.12 1.0 9D18042 EPA 8260D 04/19/19 14:40 MRK 1,1,2,2-Tetrachloroethane [79-34-5]^ 0.28 U ug/L 1 0.28 1.0 9D18042 EPA 8260D 04/19/19 14:40 MRK 1,1,2-Trichloroethane [79-00-5]^ 0.14 U ug/L 1 0.14 1.0 9D18042 EPA 8260D 04/19/19 14:40 MRK 1,1-Dichloroethane [75-34-3]^ 0.66 J ug/L 1 0.13 1.0 9D18042 EPA 8260D 04/19/19 14:40 MRK 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 9D18042 EPA 8260D 04/19/19 14:40 MRK 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 9D18042 EPA 8260D 04/19/19 14:40 MRK 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 9D18042 EPA 8260D 04/19/19 14:40 MRK 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 9D18042 EPA 8260D 04/19/19 14:40 MRK 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 9D18042 EPA 8260D 04/19/19 14:40 MRK 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 9D18042 EPA 8260D 04/19/19 14:40 MRK 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 9D18042 EPA 8260D 04/19/19 14:40 MRK 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 9D18042 EPA 8260D 04/19/19 14:40 MRK 2-Butanone [78-93-3]^ 1.3 U ug/L 1 1.3 5.0 9D18042 EPA 8260D 04/19/19 14:40 MRK 2-Hexanone [591-78-6]^ 0.88 U ug/L 1 0.88 5.0 9D18042 EPA 8260D 04/19/19 14:40 MRK 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 9D18042 EPA 8260D 04/19/19 14:40 MRK Acetone [67-64-1]^ 10 U ug/L 1 10 20 9D18042 EPA 8260D 04/19/19 14:40 MRK Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 9D18042 EPA 8260D 04/19/19 14:40 MRK Benzene [71-43-2]^ 0.15 U ug/L 1 0.15 1.0 9D18042 EPA 8260D 04/19/19 14:40 MRK Bromochloromethane [74-97-5]^ 0.48 U ug/L 1 0.48 1.0 9D18042 EPA 8260D 04/19/19 14:40 MRK Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 9D18042 EPA 8260D 04/19/19 14:40 MRK Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 9D18042 EPA 8260D 04/19/19 14:40 MRK Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 9D18042 EPA 8260D 04/19/19 14:40 MIRK Carbon disulfide [75-15-0]^ 1.5 U ug/L 1 1.5 5.0 9D18042 EPA 8260D 04/19/19 14:40 MIRK Carbon tetrachloride [56-23-5]^ 0.17 U ug/L 1 0.17 1.0 9D18042 EPA 8260D 04/19/19 14:40 MIRK Chlorobenzene [108-90-7]^ 0.17 U ug/L 1 0.17 1.0 9D18042 EPA 8260D 04/19/19 14:40 MIRK Chloroethane [75-00-3]^ 0.23 U ug/L 1 0.23 1.0 9D18042 EPA 8260D 04/19/19 14:40 MIRK Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 9D18042 EPA 8260D 04/19/19 14:40 MIRK Chloromethane [74-87-3]^ 0.13 U ug/L 1 0.13 1.0 9D18042 EPA 8260D 04/19/19 14:40 MIRK cis- 1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 9D18042 EPA 8260D 04/19/19 14:40 MIRK cis- 1,3-Dichloropropene [10061-01-5]^ 0.20 U ug/L 1 0.20 1.0 9D18042 EPA 8260D 04/19/19 14:40 MIRK Dibromochloromethane [124-48-1]^ 0.17 U ug/L 1 0.17 1.0 9D18042 EPA 8260D 04/19/19 14:40 MIRK Dibromomethane [74-95-3]^ 0.27 U ug/L 1 0.27 1.0 9D18042 EPA 8260D 04/19/19 14:40 MIRK Ethylbenzene [100-41-4]^ 0.13 U ug/L 1 0.13 1.0 9D18042 EPA 8260D 04/19/19 14:40 MIRK Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 9D18042 EPA 8260D 04/19/19 14:40 MIRK Methylene chloride [75-09-2]^ 0.23 U ug/L 1 0.23 1.0 9D18042 EPA 8260D 04/19/19 14:40 MIRK Styrene [100-42-5]^ 0.11 U ug/L 1 0.11 1.0 9D18042 EPA 8260D 04/19/19 14:40 MIRK Tetrachloroethene [127-18-4]^ 0.17 U ug/L 1 0.17 1.0 9D18042 EPA 8260D 04/19/19 14:40 MIRK Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 9D18042 EPA 8260D 04/19/19 14:40 MIRK trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 9D18042 EPA 8260D 04/19/19 14:40 MIRK trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 9D18042 EPA 8260D 04/19/19 14:40 MIRK trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 U ug/L 1 0.70 1.0 9D18042 EPA 8260D 04/19/19 14:40 MIRK Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 9D18042 EPA 8260D 04/19/19 14:40 MIRK Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 9D18042 EPA 8260D 04/19/19 14:40 MIRK Vinyl acetate [108-05-4]^ 0.95 U ug/L 1 0.95 5.0 9D18042 EPA 8260D 04/19/19 14:40 MIRK Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 9D18042 EPA 8260D 04/19/19 14:40 MIRK Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 9D18042 EPA 8260D 04/19/19 14:40 MIRK FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 11 Of 36 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-II3B Lab Sample ID:CC06043-01 Received: 04/12/19 10:30 Matrix: Ground Water Sampled:04/11/19 14:03 Work Order: CC06043 Project: White Street LF-Phase II Non -Routine Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed Notes 4-Bromofluorobenzene 60 1 50.0 119 % 53-136 9D18042 EPA 8260D 0411911914:40 MRK Dibromofluoromethane 45 1 50.0 91 % 67-129 9D18042 EPA 8260D 0411911914:40 MRK Toluene-& 55 1 50.0 110 % 59-134 9D18042 EPA 8260D 0411911914:40 MRK Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 9D18039 EPA 6020E 04/19/19 14:05 CMK Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 9D20013 EPA 6010D 04/23/19 13:47 ]DH Barium [7440-39-3]^ 177 ug/L 1 1.10 10.0 9D20013 EPA 6010D 04/23/19 13:47 ]DH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 9D20013 EPA 6010D 04/23/19 13:47 ]DH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 9D20013 EPA 6010D 04/23/19 13:47 ]DH Chromium [7440-47-3]^ 1.57 J ug/L 1 1.40 10.0 9D20013 EPA 6010D 04/23/19 13:47 ]DH Cobalt[7440-48-4]^ 2.77 J ug/L 1 1.40 10.0 9D20013 EPA 6010D 04/23/19 13:47 ]DH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 9D20013 EPA 6010D 04/23/19 13:47 ]DH Lead [7439-92-1]^ 4.86 J ug/L 1 3.10 10.0 9D20013 EPA 6010D 04/23/19 13:47 ]DH Nickel[7440-02-O]^ 4.42 J ug/L 1 2.20 10.0 9D20013 EPA 6010D 04/23/19 13:47 ]DH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 9D20013 EPA 6010D 04/23/19 13:47 ]DH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 9D20013 EPA 6010D 04/23/19 13:47 ]DH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 9D18039 EPA 6020E 04/19/19 14:05 CMK Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 9D20013 EPA 6010D 04/23/19 13:47 ]DH Zinc[7440-66-6]^ 5.37 J ug/L 1 4.40 10.0 9D20013 EPA 6010D 04/23/19 13:47 ]DH Volatile Organic Compounds by GCMS SIM Isotope Dilution Analyte rCAS Numberl 1,4-Dioxane [123-91-1] Surrogates Toluene-d8 Results Flag Units DF MDL P L Batch Method Analyzed By Notes 3.9 ug/L 1 1.2 2.0 9D18049 EPA 8260D 04/18/19 15:31 KKW Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes 5.3 1 5.00 106 % 75-125 9D18049 EPA 8260D 041181191521 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 12 Of 36 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4103-SMW1 Lab Sample ID:CC06074-01 Received: 04/15/19 10:00 Matrix: Ground Water Sampled:04/12/19 11:24 Work Order: CC06074 Project: White Street LF-Phase II Non -Routine Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flao Units DF MDL Q Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]^ 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 03:51 MRK 1,1,1-Trichloroethane [71-55-6]^ 0.12 U ug/L 1 0.12 1.0 9D19024 EPA 8260D 04/20/19 03:51 MRK 1,1,2,2-Tetrachloroethane [79-34-5]^ 0.28 U ug/L 1 0.28 1.0 9D19024 EPA 8260D 04/20/19 03:51 MRK 1,1,2-Trichloroethane [79-00-5]^ 0.14 U ug/L 1 0.14 1.0 9D19024 EPA 8260D 04/20/19 03:51 MRK 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 9D19024 EPA 8260D 04/20/19 03:51 MRK 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 9D19024 EPA 8260D 04/20/19 03:51 MRK 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 9D19024 EPA 8260D 04/20/19 03:51 MRK 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 9D19024 EPA 8260D 04/20/19 03:51 MRK 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 9D19024 EPA 8260D 04/20/19 03:51 MRK 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 9D19024 EPA 8260D 04/20/19 03:51 MRK 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 9D19024 EPA 8260D 04/20/19 03:51 MRK 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 9D19024 EPA 8260D 04/20/19 03:51 MRK 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 9D19024 EPA 8260D 04/20/19 03:51 MRK 2-Butanone [78-93-3]^ 1.3 U ug/L 1 1.3 5.0 9D19024 EPA 8260D 04/20/19 03:51 MRK 2-Hexanone [591-78-6]^ 0.88 U ug/L 1 0.88 5.0 9D19024 EPA 8260D 04/20/19 03:51 MRK 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 9D19024 EPA 8260D 04/20/19 03:51 MRK Acetone [67-64-1]^ 10 U ug/L 1 10 20 9D19024 EPA 8260D 04/20/19 03:51 MRK Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 9D19024 EPA 8260D 04/20/19 03:51 MRK Benzene[71-43-2]^ 0.15 U ug/L 1 0.15 1.0 9D19024 EPA 8260D 04/20/19 03:51 MRK Bromochloromethane [74-97-5]^ 0.48 U ug/L 1 0.48 1.0 9D19024 EPA 8260D 04/20/19 03:51 MRK Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 03:51 MRK Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 9D19024 EPA 8260D 04/20/19 03:51 MRK Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 9D19024 EPA 8260D 04/20/19 03:51 MRK Carbon disulfide [75-15-0]^ 1.5 U ug/L 1 1.5 5.0 9D19024 EPA 8260D 04/20/19 03:51 MRK Carbon tetrachloride [56-23-5]^ 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 03:51 MRK Chlorobenzene [108-90-7]^ 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 03:51 MRK Chloroethane [75-00-3]^ 0.23 U ug/L 1 0.23 1.0 9D19024 EPA 8260D 04/20/19 03:51 MRK Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 9D19024 EPA 8260D 04/20/19 03:51 MRK Chloromethane [74-87-3]^ 0.13 U ug/L 1 0.13 1.0 9D19024 EPA 8260D 04/20/19 03:51 MRK cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 9D19024 EPA 8260D 04/20/19 03:51 MRK cis-1,3-Dichloropropene [10061-01-5]^ 0.20 U ug/L 1 0.20 1.0 9D19024 EPA 8260D 04/20/19 03:51 MRK Dibromochloromethane [124-48-1]^ 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 03:51 MRK Dibromomethane [74-95-3]^ 0.27 U ug/L 1 0.27 1.0 9D19024 EPA 8260D 04/20/19 03:51 MRK Ethylbenzene [100-41-4]^ 0.13 U ug/L 1 0.13 1.0 9D19024 EPA 8260D 04/20/19 03:51 MRK Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 9D19024 EPA 8260D 04/20/19 03:51 MRK Methylene chloride [75-09-2]^ 0.23 U ug/L 1 0.23 1.0 9D19024 EPA 8260D 04/20/19 03:51 MRK Styrene [100-42-5]^ 0.11 U ug/L 1 0.11 1.0 9D19024 EPA 8260D 04/20/19 03:51 MRK Tetrachloroethene [127-18-4]^ 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 03:51 MRK Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 9D19024 EPA 8260D 04/20/19 03:51 MRK trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 9D19024 EPA 8260D 04/20/19 03:51 MRK trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 9D19024 EPA 8260D 04/20/19 03:51 MRK trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 U ug/L 1 0.70 1.0 9D19024 EPA 8260D 04/20/19 03:51 MRK Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 9D19024 EPA 8260D 04/20/19 03:51 MRK Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 9D19024 EPA 8260D 04/20/19 03:51 MRK Vinyl acetate [108-05-4]^ 0.95 U ug/L 1 0.95 5.0 9D19024 EPA 8260D 04/20/19 03:51 MRK Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 9D19024 EPA 8260D 04/20/19 03:51 MRK Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 9D19024 EPA 8260D 04/20/19 03:51 MRK FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 13 Of 36 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-SMW1 Lab Sample ID:CC06074-01 Received: 04/15/19 10:00 Matrix: Ground Water Sampled:04/12/19 11:24 Work Order: CC06074 Project: White Street LF-Phase II Non -Routine Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed Notes 4-Bromofluorobenzene 58 1 50.0 116 % 53-136 9D19024 EPA 8260D 04120119 03:51 MRK Dlbromofluoromethane 45 1 50.0 91 % 67-129 9D19024 EPA 8260D 04120119 03:51 MRK Toluene-& 54 1 50.0 108 % 59-134 9D19024 EPA 8260D 04120119 03:51 MRK Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 9D18039 EPA 6020E 04/19/19 14:10 CM K Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 9D22016 EPA 6010D 04/24/19 16:11 ]DH Barium [7440-39-3]^ 233 ug/L 1 1.10 10.0 9D22016 EPA 6010D 04/24/19 16:11 ]DH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 9D22016 EPA 6010D 04/24/19 16:11 ]DH Cadmium [7440-43-9]^ 15.0 ug/L 1 0.360 1.00 9D22016 EPA 6010D 04/24/19 16:11 ]DH Chromium [7440-47-3]^ 3.38 J ug/L 1 1.40 10.0 9D22016 EPA 6010D 04/24/19 16:11 ]DH Cobalt[7440-48-4]^ 8.20 J ug/L 1 1.40 10.0 9D22016 EPA 6010D 04/24/19 16:11 ]DH Copper[7440-50-8]^ 14.9 ug/L 1 1.60 10.0 9D22016 EPA 6010D 04/24/19 16:11 ]DH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 9D22016 EPA 6010D 04/24/19 16:11 ]DH Nickel[7440-02-O]^ 6.58 J ug/L 1 2.20 10.0 9D22016 EPA 6010D 04/24/19 16:11 ]DH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 9D22016 EPA 6010D 04/24/19 16:11 ]DH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 9D22016 EPA 6010D 04/24/19 16:11 ]DH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 9D18039 EPA 6020E 04/19/19 14:10 CM K Vanadium [7440-62-2]^ 2.15 J ug/L 1 1.40 10.0 9D22016 EPA 6010D 04/24/19 16:11 ]DH Zinc[7440-66-6]^ 899 ug/L 1 4.40 10.0 9D22016 EPA 6010D 04/24/19 16:11 3DH Volatile Organic Compounds by GCMS SIM Isotope Dilution Analyte rCAS Numberl 1,4-Dioxane [123-91-1] Surrogates Toluene-d8 Results Flag Units DF MDL P L Batch Method Analyzed By Notes 4.9 ug/L 1 1.2 2.0 9D18049 EPA 8260D 04/18/19 20:21 KKW Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes 5.2 1 5.00 105 % 75-125 9D18049 EPA 8260D 04118119 20:21 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 14 Of 36 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4103-Trip Blank Lab Sample ID:CC06074-02 Received: 04/15/19 10:00 Matrix: Water Sampled:04/12/19 11:24 Work Order: CC06074 Project: White Street LF-Phase II Non -Routine Sampled By:ENCO Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flao Units DF MDL Q Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]^ 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 04:23 MRK 1,1,1-Trichloroethane [71-55-6]^ 0.12 U ug/L 1 0.12 1.0 9D19024 EPA 8260D 04/20/19 04:23 MRK 1,1,2,2-Tetrachloroethane [79-34-5]^ 0.28 U ug/L 1 0.28 1.0 9D19024 EPA 8260D 04/20/19 04:23 MRK 1,1,2-Trichloroethane [79-00-5]^ 0.14 U ug/L 1 0.14 1.0 9D19024 EPA 8260D 04/20/19 04:23 MRK 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 9D19024 EPA 8260D 04/20/19 04:23 MRK 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 9D19024 EPA 8260D 04/20/19 04:23 MRK 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 9D19024 EPA 8260D 04/20/19 04:23 MRK 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 9D19024 EPA 8260D 04/20/19 04:23 MRK 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 9D19024 EPA 8260D 04/20/19 04:23 MRK 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 9D19024 EPA 8260D 04/20/19 04:23 MRK 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 9D19024 EPA 8260D 04/20/19 04:23 MRK 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 9D19024 EPA 8260D 04/20/19 04:23 MRK 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 9D19024 EPA 8260D 04/20/19 04:23 MRK 2-Butanone [78-93-3]^ 1.3 U ug/L 1 1.3 5.0 9D19024 EPA 8260D 04/20/19 04:23 MRK 2-Hexanone [591-78-6]^ 0.88 U ug/L 1 0.88 5.0 9D19024 EPA 8260D 04/20/19 04:23 MRK 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 9D19024 EPA 8260D 04/20/19 04:23 MRK Acetone [67-64-1]^ 10 U ug/L 1 10 20 9D19024 EPA 8260D 04/20/19 04:23 MRK Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 9D19024 EPA 8260D 04/20/19 04:23 MRK Benzene[71-43-2]^ 0.15 U ug/L 1 0.15 1.0 9D19024 EPA 8260D 04/20/19 04:23 MRK Bromochloromethane [74-97-5]^ 0.48 U ug/L 1 0.48 1.0 9D19024 EPA 8260D 04/20/19 04:23 MRK Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 04:23 MRK Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 9D19024 EPA 8260D 04/20/19 04:23 MRK Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 9D19024 EPA 8260D 04/20/19 04:23 MRK Carbon disulfide [75-15-0]^ 1.5 U ug/L 1 1.5 5.0 9D19024 EPA 8260D 04/20/19 04:23 MRK Carbon tetrachloride [56-23-5]^ 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 04:23 MRK Chlorobenzene [108-90-7]^ 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 04:23 MRK Chloroethane [75-00-3]^ 0.23 U ug/L 1 0.23 1.0 9D19024 EPA 8260D 04/20/19 04:23 MRK Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 9D19024 EPA 8260D 04/20/19 04:23 MRK Chloromethane [74-87-3]^ 0.13 U ug/L 1 0.13 1.0 9D19024 EPA 8260D 04/20/19 04:23 MRK cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 9D19024 EPA 8260D 04/20/19 04:23 MRK cis-1,3-Dichloropropene [10061-01-5]^ 0.20 U ug/L 1 0.20 1.0 9D19024 EPA 8260D 04/20/19 04:23 MRK Dibromochloromethane [124-48-1]^ 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 04:23 MRK Dibromomethane [74-95-3]^ 0.27 U ug/L 1 0.27 1.0 9D19024 EPA 8260D 04/20/19 04:23 MRK Ethylbenzene [100-41-4]^ 0.13 U ug/L 1 0.13 1.0 9D19024 EPA 8260D 04/20/19 04:23 MRK Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 9D19024 EPA 8260D 04/20/19 04:23 MRK Methylene chloride [75-09-2]^ 0.23 U ug/L 1 0.23 1.0 9D19024 EPA 8260D 04/20/19 04:23 MRK Styrene [100-42-5]^ 0.11 U ug/L 1 0.11 1.0 9D19024 EPA 8260D 04/20/19 04:23 MRK Tetrachloroethene [127-18-4]^ 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 04:23 MRK Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 9D19024 EPA 8260D 04/20/19 04:23 MRK trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 9D19024 EPA 8260D 04/20/19 04:23 MRK trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 9D19024 EPA 8260D 04/20/19 04:23 MRK trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 U ug/L 1 0.70 1.0 9D19024 EPA 8260D 04/20/19 04:23 MRK Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 9D19024 EPA 8260D 04/20/19 04:23 MRK Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 9D19024 EPA 8260D 04/20/19 04:23 MRK Vinyl acetate [108-05-4]^ 0.95 U ug/L 1 0.95 5.0 9D19024 EPA 8260D 04/20/19 04:23 MRK Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 9D19024 EPA 8260D 04/20/19 04:23 MRK Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 9D19024 EPA 8260D 04/20/19 04:23 MRK FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 15 Of 36 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-Trip Blank Lab Sample ID:CC06074-02 Received: 04/15/19 10:00 Matrix: Water Sampled:04/12/19 11:24 Work Order: CC06074 Project: White Street LF-Phase II Non -Routine Sampled By: ENCO Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed Notes 4-Bromofluorobenzene 60 1 50.0 120 % 53-136 9D19024 EPA 8260D 04120119 04:23 MRK Dlbromofluoromethane 46 1 50.0 92 % 67-129 9D19024 EPA 8260D 04120119 04:23 MRK Toluene-& 54 1 50.0 108 % 59-134 9D19024 EPA 8260D 04120119 04:23 MRK Volatile Organic Compounds by GCMS SIM Isotope Dilution Analyte I -CAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes 1,4-Dioxane [123-91-1] 1.2 U ug/L 1 1.2 2.0 9D18049 EPA 8260D 04/18/19 20:57 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes Toluene-& 6.8 1 5.00 137 % 75-125 9D18049 EPA 8260D 04118119 20:57 KKW QS-03 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 16 Of 36 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 9D11024 - EPA 5030E MS Blank (9D31024-BLK3) Prepared: 04/11/2019 15:25 Analyzed: 04/12/2019 01:33 Analvte Result Flaa POL Units 1, 1, 1,2-Tetrachloroethane 0.17 U 1.0 ug/L 1,1,1-Trichloroethane 0.12 U 1.0 ug/L 1,1,2,2-Tetrachloroethane 0.28 U 1.0 ug/L 1,1,2-Trichloroethane 0.14 U 1.0 ug/L 1,1-Dichloroethane 0.13 U 1.0 ug/L 1,1-Dichloroethene 0.21 U 1.0 ug/L 1,2,3-Trichloropropane 0.23 U 1.0 ug/L 1,2-Dibromo-3-chloropropane 0.48 U 1.0 ug/L 1,2-Dibromoethane 0.66 U 1.0 ug/L 1,2-Dichlorobenzene 0.19 U 1.0 ug/L 1,2-Dichloroethane 0.21 U 1.0 ug/L 1,2-Dichloropropane 0.10 U 1.0 ug/L 1,4-Dichlorobenzene 0.19 U 1.0 ug/L 2-Butanone 1.3 U 5.0 ug/L 2-Hexanone 0.88 U 5.0 ug/L 4-Methyl-2-pentanone 1.1 U 5.0 ug/L Acetone 10 U 20 ug/L Acrylonitrile 3.5 U 10 ug/L Benzene 0.15 U 1.0 ug/L Bromochloromethane 0.48 U 1.0 ug/L Bromodichloromethane 0.17 U 1.0 ug/L Bromoform 0.22 U 1.0 ug/L Bromomethane 0.14 U 1.0 ug/L Carbon disulfide 1.5 U 5.0 ug/L Carbon tetrachloride 0.17 U 1.0 ug/L Chlorobenzene 0.17 U 1.0 ug/L Chloroethane 0.23 U 1.0 ug/L Chloroform 0.18 U 1.0 ug/L Chloromethane 0.13 U 1.0 ug/L cis- 1,2-Dichloroethene 0.15 U 1.0 ug/L cis- 1,3-Dichloropropene 0.20 U 1.0 ug/L Dibromochloromethane 0.17 U 1.0 ug/L Dibromomethane 0.27 U 1.0 ug/L Ethylbenzene 0.13 U 1.0 ug/L Iodomethane 1.7 U 5.0 ug/L Methylene chloride 0.23 U 1.0 ug/L Styrene 0.11 U 1.0 ug/L Tetrachloroethene 0.17 U 1.0 ug/L Toluene 0.14 U 1.0 ug/L trans-1,2-Dichloroethene 0.21 U 1.0 ug/L trans-1,3-Dichloropropene 0.15 U 1.0 ug/L trans-1,4-Dichloro-2-butene 0.70 U 1.0 ug/L Trichloroethene 0.15 U 1.0 ug/L Trichlorofluoromethane 0.24 U 1.0 ug/L Vinyl acetate 0.95 U 5.0 ug/L Vinyl chloride 0.32 U 1.0 ug/L Xylenes (Total) 0.45 U 3.0 ug/L Spike Source %REC RPD Level Result %REC Limits RPD Limit Notes 4-Bromofluorobenzene Dibromofluoromethane FINAL 60 u9/L 50.0 120 53-136 49 u9/L 50.0 99 67-129 This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 17 Of 36 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 9D11024 - EPA 5030E MS - Continued Blank (9D31024-BLK3) Continued Prepared: 04/11/2019 15:25 Analyzed: 04/12/2019 01:33 Spike Source %REC RPD Analvte Result Flaq Q Units Level Result %REC Limits RPD Limit Notes Toluene-d8 56 u91L 50.0 112 59-134 LCS (91313024-BSI) Prepared: 04/11/2019 15:25 Analyzed: 04/11/2019 23:27 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 19 1.0 ug/L 20.0 95 75-133 Benzene 26 1.0 ug/L 20.0 131 80-134 Chlorobenzene 17 1.0 ug/L 20.0 87 80-120 Toluene 20 1.0 ug/L 20.0 98 71-120 Trichloroethene 24 1.0 ug/L 20.0 120 74-120 Matrix Spike (9D13024-MS1) Prepared: 04/11/2019 15:25 Analyzed: 04/11/2019 23:59 Source: CCO5897-09 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 22 1.0 ug/L 20.0 0.21 U 112 75-133 Benzene 27 1.0 ug/L 20.0 0.15 U 137 80-134 QM-07 Chlorobenzene 19 1.0 ug/L 20.0 0.17 U 95 80-120 Toluene 21 1.0 ug/L 20.0 0.14 U 104 71-120 Trichloroethene 26 1.0 ug/L 20.0 0.15 U 132 74-120 QM-07 Matrix Spike Dup (91313024-MSDS) Prepared: 04/11/2019 15:25 Analyzed: 04/12/2019 00:30 Source: CCO5897-09 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 23 1.0 ug/L 20.0 0.21 U 116 75-133 4 20 Benzene 25 1.0 ug/L 20.0 0.15 U 124 80-134 10 17 Chlorobenzene 18 1.0 ug/L 20.0 0.17 U 90 80-120 6 16 Toluene 20 1.0 ug/L 20.0 0.14 U 101 71-120 3 17 Trichloroethene 26 1.0 ug/L 20.0 0.15 U 132 74-120 0 22 QM-07 Batch 9DIB042 - EPA 5030B MS Blank (9D18042-BLK3) Prepared: 04/18/2019 16:33 Analyzed: 04/19/2019 05:45 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1,1,2-Tetrachloroethane 0.17 U 1.0 ug/L 1,1,1-Trichloroethane 0.12 U 1.0 ug/L 1,1,2,2-Tetrachloroethane 0.28 U 1.0 ug/L 1,1,2-Trichloroethane 0.14 U 1.0 ug/L 1,1-Dichloroethane 0.13 U 1.0 ug/L 1,1-Dichloroethene 0.21 U 1.0 ug/L 1,2,3-Trichloropropane 0.23 U 1.0 ug/L 1,2-Dibromo-3-chloropropane 0.48 U 1.0 ug/L 1,2-Dibromoethane 0.66 U 1.0 ug/L 1,2-Dichlorobenzene 0.19 U 1.0 ug/L 1,2-Dichloroethane 0.21 U 1.0 ug/L 1,2-Dichloropropane 0.10 U 1.0 ug/L 1,4-Dichlorobenzene 0.19 U 1.0 ug/L 2-Butanone 1.3 U 5.0 ug/L FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 18 Of 36 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 9D18042 - EPA 5030E MS - Continued Blank (9D38042-BLK3) Continued Prepared: 04/18/2019 16:33 Analyzed: 04/19/2019 05:45 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 2-Hexanone 0.88 U 5.0 ug/L 4-Methyl-2-pentanone 1.1 U 5.0 ug/L Acetone 10 U 20 ug/L Acrylonitrile 3.5 U 10 ug/L Benzene 0.15 U 1.0 ug/L Bromochloromethane 0.48 U 1.0 ug/L Bromodichloromethane 0.17 U 1.0 ug/L Bromoform 0.22 U 1.0 ug/L Bromomethane 0.14 U 1.0 ug/L Carbon disulfide 1.5 U 5.0 ug/L Carbon tetrachloride 0.17 U 1.0 ug/L Chlorobenzene 0.17 U 1.0 ug/L Chloroethane 0.23 U 1.0 ug/L Chloroform 0.18 U 1.0 ug/L Chloromethane 0.13 U 1.0 ug/L cis- 1,2-Dichloroethene 0.15 U 1.0 ug/L cis- 1,3-Dichloropropene 0.20 U 1.0 ug/L Dibromochloromethane 0.17 U 1.0 ug/L Dibromomethane 0.27 U 1.0 ug/L Ethylbenzene 0.13 U 1.0 ug/L Iodomethane 1.7 U 5.0 ug/L Methylene chloride 0.23 U 1.0 ug/L Styrene 0.11 U 1.0 ug/L Tetrachloroethene 0.17 U 1.0 ug/L Toluene 0.14 U 1.0 ug/L trans-1,2-Dichloroethene 0.21 U 1.0 ug/L trans-1,3-Dichloropropene 0.15 U 1.0 ug/L trans-1,4-Dichloro-2-butene 0.70 U 1.0 ug/L Trichloroethene 0.15 U 1.0 ug/L Trichlorofluoromethane 0.24 U 1.0 ug/L Vinyl acetate 0.95 U 5.0 ug/L Vinyl chloride 0.32 U 1.0 ug/L Xylenes (Total) 0.45 U 3.0 ug/L 4-Bromofluorobenzene 56 u9/L 50.0 113 53-136 Dlbromofluoromethane 46 u91L 50.0 91 67-129 Toluene-c48 54 u9/L 50.0 108 59-134 LCS (9D18042-BS1) Prepared: 04/18/2019 16:33 Analyzed: 04/19/2019 03:40 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 18 1.0 ug/L 20.0 90 75-133 Benzene 22 1.0 ug/L 20.0 112 80-134 Chlorobenzene 19 1.0 ug/L 20.0 94 80-120 Toluene 21 1.0 ug/L 20.0 104 71-120 Trichloroethene 22 1.0 ug/L 20.0 112 74-120 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 19 Of 36 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 9D18042 - EPA 5030E MS - Continued Matrix Spike (9D18042-MS3) Prepared: 04/18/2019 16:33 Analyzed: 04/19/2019 04:11 Source: CC06172-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 19 1.0 ug/L 20.0 0.21 U 97 75-133 Benzene 23 1.0 ug/L 20.0 0.15 U 113 80-134 Chlorobenzene 21 1.0 ug/L 20.0 0.17 U 104 80-120 Toluene 22 1.0 ug/L 20.0 0.14 U 109 71-120 Trichloroethene 26 1.0 ug/L 20.0 0.15 U 132 74-120 QM-07 Matrix Spike Dup (9D18042-MSDS) Prepared: 04/18/2019 16:33 Analyzed: 04/19/2019 04:42 Source: CC06172-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 18 1.0 ug/L 20.0 0.21 U 92 75-133 5 20 Benzene 21 1.0 ug/L 20.0 0.15 U 104 80-134 8 17 Chlorobenzene 19 1.0 ug/L 20.0 0.17 U 96 80-120 8 16 Toluene 20 1.0 ug/L 20.0 0.14 U 101 71-120 7 17 Trichloroethene 25 1.0 ug/L 20.0 0.15 U 124 74-120 6 22 QM-07 Batch 9D19024 - EPA 5030E MS Blank (91339024-BLK3) Prepared: 04/19/2019 11:31 Analyzed: 04/19/2019 19:57 Analvte Result Flaq POL Units 1, 1, 1,2-Tetrachloroethane 0.17 U 1.0 ug/L 1,1,1-Trichloroethane 0.12 U 1.0 ug/L 1,1,2,2-Tetrachloroethane 0.28 U 1.0 ug/L 1,1,2-Trichloroethane 0.14 U 1.0 ug/L 1,1-Dichloroethane 0.13 U 1.0 ug/L 1,1-Dichloroethene 0.21 U 1.0 ug/L 1,2,3-Trichloropropane 0.23 U 1.0 ug/L 1,2-Dibromo-3-chloropropane 0.48 U 1.0 ug/L 1,2-Dibromoethane 0.66 U 1.0 ug/L 1,2-Dichlorobenzene 0.19 U 1.0 ug/L 1,2-Dichloroethane 0.21 U 1.0 ug/L 1,2-Dichloropropane 0.10 U 1.0 ug/L 1,4-Dichlorobenzene 0.19 U 1.0 ug/L 2-Butanone 1.3 U 5.0 ug/L 2-Hexanone 0.88 U 5.0 ug/L 4-Methyl-2-pentanone 1.1 U 5.0 ug/L Acetone 10 U 20 ug/L Acrylonitrile 3.5 U 10 ug/L Benzene 0.15 U 1.0 ug/L Bromochloromethane 0.48 U 1.0 ug/L Bromodichloromethane 0.17 U 1.0 ug/L Bromoform 0.22 U 1.0 ug/L Bromomethane 0.14 U 1.0 ug/L Carbon disulfide 1.5 U 5.0 ug/L Carbon tetrachloride 0.17 U 1.0 ug/L Chlorobenzene 0.17 U 1.0 ug/L Chloroethane 0.23 U 1.0 ug/L Chloroform 0.18 U 1.0 ug/L Chloromethane 0.13 U 1.0 ug/L Spike Source %REC RPD Level Result %REC Limits RPD Limit Notes FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 20 Of 36 QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 9D19024 - EPA 5030E MS - Continued (� �Eo www.encolabs.com Blank (9D39024-BLK3) Continued Prepared: 04/19/2019 11:31 Analyzed: 04/19/2019 19:57 Analvte Result Flaq POL Units cis- 1,2-Dichloroethene 0.15 U 1.0 ug/L cis- 1,3-Dichloropropene 0.20 U 1.0 ug/L Dibromochloromethane 0.17 U 1.0 ug/L Dibromomethane 0.27 U 1.0 ug/L Ethylbenzene 0.13 U 1.0 ug/L Iodomethane 1.7 U 5.0 ug/L Methylene chloride 0.23 U 1.0 ug/L Styrene 0.11 U 1.0 ug/L Tetrachloroethene 0.17 U 1.0 ug/L Toluene 0.14 U 1.0 ug/L trans-1,2-Dichloroethene 0.21 U 1.0 ug/L trans-1,3-Dichloropropene 0.15 U 1.0 ug/L trans-1,4-Dichloro-2-butene 0.70 U 1.0 ug/L Trichloroethene 0.15 U 1.0 ug/L Trichlorofluoromethane 0.24 U 1.0 ug/L Vinyl acetate 0.95 U 5.0 ug/L Vinyl chloride 0.32 U 1.0 ug/L Xylenes (Total) 0.45 U 3.0 ug/L Spike Source %REC RPD Level Result %REC Limits RPD Limit Notes 4-Bromofluorobenzene 55 u9/L 50.0 110 53-136 Dlbromofluoromethane 46 u91L 50.0 92 67-129 Toluene-d8 52 u9/L 50.0 103 59-134 LCS (91319024-BS1) Prepared: 04/19/2019 11:31 Analyzed: 04/19/2019 17:51 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 18 1.0 ug/L 20.0 89 75-133 Benzene 21 1.0 ug/L 20.0 103 80-134 Chlorobenzene 20 1.0 ug/L 20.0 101 80-120 Toluene 20 1.0 ug/L 20.0 102 71-120 Trichloroethene 21 1.0 ug/L 20.0 103 74-120 Matrix Spike (9D19024-MS1) Prepared: 04/19/2019 11:31 Analyzed: 04/19/2019 18:22 Source: CC06172-09 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 19 1.0 ug/L 20.0 0.21 U 96 75-133 Benzene 22 1.0 ug/L 20.0 0.15 U 109 80-134 Chlorobenzene 20 1.0 ug/L 20.0 0.17 U 101 80-120 Toluene 21 1.0 ug/L 20.0 0.14 U 105 71-120 Trichloroethene 26 1.0 ug/L 20.0 0.15 U 130 74-120 QM-07 Matrix Spike Dup (91319024-MS131) Prepared: 04/19/2019 11:31 Analyzed: 04/19/2019 18:54 Source: CC06172-09 Spike Analvte Result Flaa POL Units Level 1,1-Dichloroethene 19 1.0 ug/L 20.0 Benzene 20 1.0 ug/L 20.0 Chlorobenzene 20 1.0 ug/L 20.0 Toluene 21 1.0 ug/L 20.0 Trichloroethene 25 1.0 ug/L 20.0 Source %REC Result %REC Limits 0.21 U 94 75-133 0.15 U 102 80-134 0.17 U 102 80-120 0.14 U 103 71-120 0.15 U 126 74-120 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. RPD RPD Limit Notes 2 20 7 17 2 16 2 17 3 22 QM-07 Page 21 of 36 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 9D16005 - EPA 3005A Blank (9D36005-BLK3) Prepared: 04/16/2019 08:07 Analyzed: 04/18/2019 09:48 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 0.370 U 1.00 ug/L Thallium 0.110 U 1.00 ug/L LCS (91316005-BSI) Prepared: 04/16/2019 08:07 Analyzed: 04/18/2019 09:57 Spike Source %REC RPD Analvte Result Flaq Q Units Level Result %REC Limits RPD Limit Notes Antimony 18.8 1.00 ug/L 20.0 94 80-120 Thallium 18.8 1.00 ug/L 20.0 94 80-120 Matrix Spike (9D16005-MS1) Prepared: 04/16/2019 08:07 Analyzed: 04/18/2019 10:01 Source: CCO5815-05 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 39.3 2.00 ug/L 40.0 0.740 U 98 75-125 Thallium 37.3 2.00 ug/L 40.0 0.220 U 93 75-125 Matrix Spike Dup (91316005-MS131) Prepared: 04/16/2019 08:07 Analyzed: 04/18/2019 10:05 Source: CC05815-05 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 35.0 2.00 ug/L 40.0 0.740 U 87 75-125 12 20 Thallium 32.9 2.00 ug/L 40.0 0.220 U 82 75-125 13 20 Post Spike (91336005-PS3) Prepared: 04/16/2019 08:07 Analyzed: 04/18/2019 10:10 Source: CCO5815-05 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 20.2 1.00 ug/L 20.0 0.0207 101 75-125 Thallium 19.5 1.00 ug/L 20.0 0.00421 98 75-125 Batch 9D18010 - EPA 3005A Blank (91D18010-BLKI) Prepared: 04/18/2019 08:26 Analyzed: 04/19/2019 11:04 Analvte Result Flaq POL Units Arsenic 7.60 U 10.0 ug/L Barium 1.10 U 10.0 ug/L Beryllium 0.160 U 1.00 ug/L Cadmium 0.360 U 1.00 ug/L Chromium 1.40 U 10.0 ug/L Cobalt 1.40 U 10.0 ug/L Copper 1.60 U 10.0 ug/L Lead 3.10 U 10.0 ug/L Nickel 2.20 U 10.0 ug/L Selenium 6.20 U 10.0 ug/L Silver 1.90 U 10.0 ug/L Vanadium 1.40 U 10.0 ug/L Zinc 4.40 U 10.0 ug/L Spike Source %REC RPD Level Result %REC Limits RPD Limit Notes FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 22 Of 36 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 9D18010 - EPA 3005A - Continued LCS (9D18010-BSI) Prepared: 04/18/2019 08:26 Analyzed: 04/19/2019 11:10 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 203 10.0 ug/L 200 101 80-120 Barium 193 10.0 ug/L 200 97 80-120 Beryllium 20.2 1.00 ug/L 20.0 101 80-120 Cadmium 19.5 1.00 ug/L 20.0 97 80-120 Chromium 195 10.0 ug/L 200 98 80-120 Cobalt 199 10.0 ug/L 200 99 80-120 Copper 192 10.0 ug/L 200 96 80-120 Lead 196 10.0 ug/L 200 98 80-120 Nickel 196 10.0 ug/L 200 98 80-120 Selenium 206 10.0 ug/L 200 103 80-120 Silver 203 10.0 ug/L 200 102 80-120 Vanadium 195 10.0 ug/L 200 98 80-120 Zinc 195 10.0 ug/L 200 98 80-120 Matrix Spike (91318030-MS1) Prepared: 04/18/2019 08:26 Analyzed: 04/19/2019 11:13 Source: CC04949-06 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 174 10.0 ug/L 200 7.60 U 87 75-125 Barium 204 10.0 ug/L 200 11.3 97 75-125 Beryllium 19.8 1.00 ug/L 20.0 0.160 U 99 75-125 Cadmium 18.6 1.00 ug/L 20.0 0.360 U 93 75-125 Chromium 190 10.0 ug/L 200 1.40 U 95 75-125 Cobalt 194 10.0 ug/L 200 1.40 U 97 75-125 Copper 190 10.0 ug/L 200 1.60 U 95 75-125 Lead 193 10.0 ug/L 200 3.10 U 96 75-125 Nickel 197 10.0 ug/L 200 2.20 U 98 75-125 Selenium 189 10.0 ug/L 200 6.20 U 94 75-125 Silver 191 10.0 ug/L 200 1.90 U 96 75-125 Vanadium 192 10.0 ug/L 200 1.40 U 96 75-125 Zinc 197 10.0 ug/L 200 4.40 U 99 75-125 Matrix Spike Dup (9D18030-MSDS) Prepared: 04/18/2019 08:26 Analyzed: 04/19/2019 11:15 Source: CC04949-06 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 165 10.0 ug/L 200 7.60 U 83 75-125 5 20 Barium 204 10.0 ug/L 200 11.3 96 75-125 0.4 20 Beryllium 19.8 1.00 ug/L 20.0 0.160 U 99 75-125 0.1 20 Cadmium 18.5 1.00 ug/L 20.0 0.360 U 92 75-125 0.6 20 Chromium 190 10.0 ug/L 200 1.40 U 95 75-125 0.3 20 Cobalt 192 10.0 ug/L 200 1.40 U 96 75-125 0.9 20 Copper 190 10.0 ug/L 200 1.60 U 95 75-125 0.03 20 Lead 190 10.0 ug/L 200 3.10 U 95 75-125 2 20 Nickel 194 10.0 ug/L 200 2.20 U 97 75-125 1 20 Selenium 186 10.0 ug/L 200 6.20 U 93 75-125 2 20 Silver 192 10.0 ug/L 200 1.90 U 96 75-125 0.2 20 Vanadium 193 10.0 ug/L 200 1.40 U 96 75-125 0.2 20 Zinc 196 10.0 ug/L 200 4.40 U 98 75-125 0.5 20 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 23 Of 36 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 9D18010 - EPA 3005A - Continued Post Spike (9D38010-PS3) Prepared: 04/18/2019 08:26 Analyzed: 04/19/2019 11:17 Source: CC04949-06 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 0.178 0.0100 mg/L 0.200 -0.0348 89 80-120 Barium 0.217 0.0100 mg/L 0.200 0.0113 103 80-120 Beryllium 0.0208 0.00100 mg/L 0.0200 3.13E-5 104 80-120 Cadmium 0.0196 0.00100 mg/L 0.0200 -0.000517 98 80-120 Chromium 0.200 0.0100 mg/L 0.200 -0.000145 100 80-120 Cobalt 0.205 0.0100 mg/L 0.200 0.000364 102 80-120 Copper 0.200 0.0100 mg/L 0.200 0.000539 100 80-120 Lead 0.201 0.0100 mg/L 0.200 -0.000339 100 80-120 Nickel 0.208 0.0100 mg/L 0.200 0.00107 103 80-120 Selenium 0.198 0.0100 mg/L 0.200 -0.0193 99 80-120 Silver 0.213 0.0100 mg/L 0.200 -0.000797 107 80-120 Vanadium 0.202 0.0100 mg/L 0.200 -7.52E-5 101 80-120 Zinc 0.211 0.0100 mg/L 0.200 0.00204 104 80-120 Batch 9D18039 - EPA 3005A Blank (9D38039-BLK3) Prepared: 04/18/2019 16:07 Analyzed: 04/19/2019 12:27 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 0.370 U 1.00 ug/L Thallium 0.110 U 1.00 ug/L LCS (9D18039-BS3) Prepared: 04/18/2019 16:07 Analyzed: 04/19/2019 12:36 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 18.2 1.00 ug/L 20.0 91 80-120 Thallium 18.6 1.00 ug/L 20.0 93 80-120 Matrix Spike (9D18039-MS1) Prepared: 04/18/2019 16:07 Analyzed: 04/19/2019 12:40 Source: CC06034-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 36.6 2.00 ug/L 40.0 0.740 U 92 75-125 Thallium 35.8 2.00 ug/L 40.0 0.220 U 90 75-125 Matrix Spike Dup (9D38039-MSDS) Prepared: 04/18/2019 16:07 Analyzed: 04/19/2019 12:44 Source: CC06034-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 37.4 2.00 ug/L 40.0 0.740 U 94 75-125 2 20 Thallium 36.9 2.00 ug/L 40.0 0.220 U 92 75-125 3 20 Post Spike (9D18039-PS1) Prepared: 04/18/2019 16:07 Analyzed: 04/19/2019 12:49 Source: CC06034-02 Spike Source %REC RPD Analvte Result Flaq Q Units Level Result %REC Limits RPD Limit Notes Antimony 20.2 1.00 ug/L 20.0 0.0231 101 75-125 Thallium 19.7 1.00 ug/L 20.0 0.00406 98 75-125 Batch 9D20013 - EPA 3005A FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 24 Of 3G 0Nk"q09 www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 9D20013 - EPA 3005A - Continued Blank (9D20013-BLK1) Prepared: 04/20/2019 13:50 Analyzed: 04/23/2019 12:09 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Arsenic 7.60 U 10.0 ug/L Barium 1.10 U 10.0 ug/L Beryllium 0.160 U 1.00 ug/L Cadmium 0.360 U 1.00 ug/L Chromium 1.40 U 10.0 ug/L Cobalt 1.40 U 10.0 ug/L Copper 1.60 U 10.0 ug/L Lead 3.10 U 10.0 ug/L Nickel 2.20 U 10.0 ug/L Selenium 6.20 U 10.0 ug/L Silver 1.90 U 10.0 ug/L Vanadium 1.40 U 10.0 ug/L Zinc 4.40 U 10.0 ug/L LCS (9D20013-BS1) Prepared: 04/20/2019 13:50 Analyzed: 04/23/2019 12:14 Spike Source %REC RPD Analvte Result Flaa ML Units Level Result %REC Limits RPD Limit Notes Arsenic 234 10.0 ug/L 200 117 80-120 Barium 222 10.0 ug/L 200 111 80-120 Beryllium 23.2 1.00 ug/L 20.0 116 80-120 Cadmium 22.5 1.00 ug/L 20.0 112 80-120 Chromium 225 10.0 ug/L 200 112 80-120 Cobalt 232 10.0 ug/L 200 116 80-120 Copper 220 10.0 ug/L 200 110 80-120 Lead 224 10.0 ug/L 200 112 80-120 Nickel 224 10.0 ug/L 200 112 80-120 Selenium 218 10.0 ug/L 200 109 80-120 Silver 226 10.0 ug/L 200 113 80-120 Vanadium 221 10.0 ug/L 200 110 80-120 Zinc 231 10.0 ug/L 200 115 80-120 Matrix Spike (9D20013-MS3) Prepared: 04/20/2019 13:50 Analyzed: 04/23/2019 12:17 Source: CCO5219-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Lim! RPD Mma Notes Arsenic 226 10.0 ug/L 200 7.60 U 113 75-125 Barium 249 10.0 ug/L 200 40.6 104 75-125 Beryllium 22.1 1.00 ug/L 20.0 0.160 U 110 75-125 Cadmium 21.7 1.00 ug/L 20.0 0.360 U 108 75-125 Chromium 220 10.0 ug/L 200 5.96 107 75-125 Cobalt 225 10.0 ug/L 200 4.75 110 75-125 Copper 217 10.0 ug/L 200 7.27 105 75-125 Lead 216 10.0 ug/L 200 5.24 105 75-125 Nickel 217 10.0 ug/L 200 8.04 104 75-125 Selenium 217 10.0 ug/L 200 6.20 U 109 75-125 Silver 213 10.0 ug/L 200 1.90 U 106 75-125 Vanadium 234 10.0 ug/L 200 20.0 107 75-125 Zinc 224 10.0 ug/L 200 9.80 107 75-125 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 25 Of 36 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 9D20013 - EPA 3005A - Continued Matrix Spike Dup (9D20013-MSD1) Prepared: 04/20/2019 13:50 Analyzed: 04/23/2019 12:55 Source: CCO5219-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 227 10.0 ug/L 200 7.60 U 114 75-125 0.8 20 Barium 268 10.0 ug/L 200 40.6 114 75-125 7 20 Beryllium 21.9 1.00 ug/L 20.0 0.160 U 109 75-125 0.8 20 Cadmium 22.3 1.00 ug/L 20.0 0.360 U 112 75-125 3 20 Chromium 222 10.0 ug/L 200 5.96 108 75-125 1 20 Cobalt 232 10.0 ug/L 200 4.75 114 75-125 3 20 Copper 220 10.0 ug/L 200 7.27 107 75-125 2 20 Lead 222 10.0 ug/L 200 5.24 109 75-125 3 20 Nickel 235 10.0 ug/L 200 8.04 114 75-125 8 20 Selenium 225 10.0 ug/L 200 6.20 U 112 75-125 3 20 Silver 211 10.0 ug/L 200 1.90 U 105 75-125 0.9 20 Vanadium 234 10.0 ug/L 200 20.0 107 75-125 0.2 20 Zinc 242 10.0 ug/L 200 9.80 116 75-125 8 20 Post Spike (9D20013-PSI) Prepared: 04/20/2019 13:50 Analyzed: 04/23/2019 12:57 Source: CCO5219-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 0.228 0.0100 mg/L 0.200 0.00230 113 80-120 Barium 0.254 0.0100 mg/L 0.200 0.0406 107 80-120 Beryllium 0.0223 0.00100 mg/L 0.0200 -0.000634 111 80-120 Cadmium 0.0224 0.00100 mg/L 0.0200 0.000128 111 80-120 Chromium 0.224 0.0100 mg/L 0.200 0.00596 109 80-120 Cobalt 0.232 0.0100 mg/L 0.200 0.00475 113 80-120 Copper 0.223 0.0100 mg/L 0.200 0.00727 108 80-120 Lead 0.220 0.0100 mg/L 0.200 0.00524 107 80-120 Nickel 0.224 0.0100 mg/L 0.200 0.00804 108 80-120 Selenium 0.222 0.0100 mg/L 0.200 -0.00993 111 80-120 Silver 0.232 0.0100 mg/L 0.200 -0.000572 116 80-120 Vanadium 0.237 0.0100 mg/L 0.200 0.0200 109 80-120 Zinc 0.243 0.0100 mg/L 0.200 0.00980 117 80-120 Batch 9D22016 - EPA 3005A Blank (9D22016-BLKI) Prepared: 04/22/2019 11:11 Analyzed: 04/24/2019 11:01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 7.60 U 10.0 ug/L Barium 1.10 U 10.0 ug/L Beryllium 0.160 U 1.00 ug/L Cadmium 0.360 U 1.00 ug/L Chromium 1.40 U 10.0 ug/L Cobalt 1.40 U 10.0 ug/L Copper 1.60 U 10.0 ug/L Lead 3.10 U 10.0 ug/L Nickel 2.20 U 10.0 ug/L Selenium 6.20 U 10.0 ug/L Silver 1.90 U 10.0 ug/L Vanadium 1.40 U 10.0 ug/L Zinc 4.40 U 10.0 ug/L FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 26 Of 36 0Nk"q09 www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 9D22016 - EPA 3005A - Continued LCS (9D22016-BSI) Prepared: 04/22/2019 11:11 Analyzed: 04/24/2019 11:13 Spike Source %REC RPD Analvte Result Flao POL Units Level Result %REC Limits RPD Limit Notes Arsenic 218 10.0 ug/L 200 109 80-120 Barium 208 10.0 ug/L 200 104 80-120 Beryllium 21.7 1.00 ug/L 20.0 109 80-120 Cadmium 21.6 1.00 ug/L 20.0 108 80-120 Chromium 211 10.0 ug/L 200 105 80-120 Cobalt 211 10.0 ug/L 200 105 80-120 Copper 206 10.0 ug/L 200 103 80-120 Lead 215 10.0 ug/L 200 107 80-120 Nickel 213 10.0 ug/L 200 106 80-120 Selenium 223 10.0 ug/L 200 112 80-120 Silver 215 10.0 ug/L 200 107 80-120 Vanadium 208 10.0 ug/L 200 104 80-120 Zinc 220 10.0 ug/L 200 110 80-120 Matrix Spike (9D22016-MS3) Prepared: 04/22/2019 11:11 Analyzed: 04/24/2019 11:17 Source: CCO5219-10 Spike Source %REC RPD Awe Result Flaa ML Units Level Result %REC Limits RPD Limit Notes Arsenic 201 10.0 ug/L 200 7.60 U 101 75-125 Barium 263 10.0 ug/L 200 55.4 104 75-125 Beryllium 22.6 1.00 ug/L 20.0 0.160 U 113 75-125 Cadmium 21.1 1.00 ug/L 20.0 0.360 U 106 75-125 Chromium 214 10.0 ug/L 200 1.40 U 107 75-125 Cobalt 205 10.0 ug/L 200 1.40 U 103 75-125 Copper 215 10.0 ug/L 200 1.60 U 108 75-125 Lead 207 10.0 ug/L 200 3.10 U 103 75-125 Nickel 219 10.0 ug/L 200 6.74 106 75-125 Selenium 215 10.0 ug/L 200 6.20 U 108 75-125 Silver 221 10.0 ug/L 200 1.90 U 110 75-125 Vanadium 219 10.0 ug/L 200 2.25 108 75-125 Zinc 221 10.0 ug/L 200 5.22 108 75-125 Matrix Spike Dup (9D22016-MSD1) Prepared: 04/22/2019 11:11 Analyzed: 04/24/2019 11:19 Source: CCO5219-10 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Lim! RPD Limit Notes Arsenic 208 10.0 ug/L 200 7.60 U 104 75-125 3 20 Barium 275 10.0 ug/L 200 55.4 110 75-125 4 20 Beryllium 22.1 1.00 ug/L 20.0 0.160 U 111 75-125 2 20 Cadmium 21.9 1.00 ug/L 20.0 0.360 U 110 75-125 4 20 Chromium 213 10.0 ug/L 200 1.40 U 106 75-125 0.8 20 Cobalt 211 10.0 ug/L 200 1.40 U 106 75-125 3 20 Copper 210 10.0 ug/L 200 1.60 U 105 75-125 2 20 Lead 213 10.0 ug/L 200 3.10 U 106 75-125 3 20 Nickel 227 10.0 ug/L 200 6.74 110 75-125 4 20 Selenium 209 10.0 ug/L 200 6.20 U 105 75-125 3 20 Silver 211 10.0 ug/L 200 1.90 U 106 75-125 4 20 Vanadium 215 10.0 ug/L 200 2.25 107 75-125 1 20 Zinc 230 10.0 ug/L 200 5.22 112 75-125 4 20 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 27 Of 36 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 9D22016 - EPA 3005A - Continued Post Spike (9D22016-PS3) Prepared: 04/22/2019 11:11 Analyzed: 04/24/2019 11:22 Source: CCO5219-10 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Arsenic 0.207 0.0100 mg/L 0.200 -0.00900 104 80-120 Barium 0.260 0.0100 mg/L 0.200 0.0554 102 80-120 Beryllium 0.0221 0.00100 mg/L 0.0200 -0.000251 111 80-120 Cadmium 0.0213 0.00100 mg/L 0.0200 -0.000576 106 80-120 Chromium 0.211 0.0100 mg/L 0.200 0.000968 105 80-120 Cobalt 0.209 0.0100 mg/L 0.200 -0.000299 104 80-120 Copper 0.209 0.0100 mg/L 0.200 0.00142 104 80-120 Lead 0.208 0.0100 mg/L 0.200 -0.000692 104 80-120 Nickel 0.213 0.0100 mg/L 0.200 0.00674 103 80-120 Selenium 0.215 0.0100 mg/L 0.200 -0.0167 108 80-120 Silver 0.221 0.0100 mg/L 0.200 -0.000488 111 80-120 Vanadium 0.215 0.0100 mg/L 0.200 0.00225 106 80-120 Zinc 0.216 0.0100 mg/L 0.200 0.00522 105 80-120 Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Batch 9DI2022 - EPA 5030E MS Blank (9D32022-BLK3) Prepared: 04/12/2019 00:00 Analyzed: 04/12/2019 12:08 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 1.2 U 2.0 ug/L Toluene-d8 5.1 ug/L 5.00 102 75-125 LCS (9D12022-BSI) Prepared: 04/12/2019 00:00 Analyzed: 04/12/2019 11:02 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 26 2.0 ug/L 25.0 103 80-133 Toluene-d8 5.4 ug/L 5.00 108 75-125 LCS Dup (9D12022-BSD1) Prepared: 04/12/2019 00:00 Analyzed: 04/12/2019 11:34 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 27 2.0 ug/L 25.0 108 80-133 5 19 QM-10 Toluene-d8 5.4 ug/L 5.00 107 75-125 QM-10 Batch 9DIB049 - EPA 5030E MS Blank (9D38049-BLK3) Prepared: 04/18/2019 00:00 Analyzed: 04/18/2019 11:29 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 1.2 U 2.0 ug/L Toluene-& 5.4 ug/L 5.00 107 75-125 LCS (9D18049-BS1) Prepared: 04/18/2019 00:00 Analyzed: 04/18/2019 10:23 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 26 2.0 ug/L 25.0 103 80-133 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 28 Of 36 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Batch 9D18049 - EPA 5030E MS - Continued LCS (9D18049-BSI) Continued Prepared: 04/18/2019 00:00 Analyzed: 04/18/2019 10:23 Spike Source %REC RPD Analvte Result Flaa POL Units Level Result %REC Limits RPD Limit Notes Toluene-d8 5.2 ug/L 5.00 105 75-125 LCS Dup (9DIS049-BSD1) Prepared: 04/18/2019 00:00 Analyzed: 04/18/2019 10:57 Spike Source %REC RPD Analvte Result Flaa POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 26 2.0 ug/L 25.0 105 80-133 2 19 QM-10 Toluene-d8 5.8 ug/L 5.00 117 75-125 QM-10 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 29 Of 36 (� �Eo www.encolabs.com FLAGS/NOTES AND DEFINITIONS B The analyte was detected in the associated method blank. D The sample was analyzed at dilution. J The reported value is between the laboratory method detection limit (MDL) and the laboratory method reporting limit (MRL), adjusted for actual sample preparation data and moisture content, where applicable. U The analyte was analyzed for but not detected to the level shown, adjusted for actual sample preparation data and moisture content, where applicable. E The concentration indicated for this analyte is an estimated value above the calibration range of the instrument. This value is considered an estimate. MRL Method Reporting Limit. The MRL is roughly equivalent to the practical quantitation limit (PQL) and is based on the low point of the calibration curve, when applicable, sample preparation factor, dilution factor, and, in the case of soil samples, moisture content. PQL PQL: Practical Quantitation Limit. The PQL presented is the laboratory MRL. N The analysis indicates the presence of an analyte for which there is presumptive evidence (85% or greater confidence) to make a "tentative identification". P Greater than 25% concentration difference was observed between the primary and secondary GC column. The lower concentration is reported. [CALC] Calculated analyte - MDL/MRL reported to the highest reporting limit of the component analyses. QM-07 The spike recovery was outside acceptance limits for the MS and/or MSD. The batch was accepted based on acceptable LCS recovery. QM-10 LCS/LCSD were analyzed in place of MS/MSD. QS-03 Surrogate recovery outside acceptance limits QV-01 The associated continuing calibration verification standard exhibited high bias; since the result is ND, there is no impact. FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 30 of 36 n m a m TL 3. O m 5 m m u C• C L w a � R s 1 Y 0 o v J. W a co W J O 3 Cn7 n ro A e 3 m r m v n ro v m 0 3 rA v `^q MCA ` 1 C.r7 n uh ) in a i3 c7 fl nm ..AL 0 �OD G7 GGGGGGIIIIII�� W U] 3 1v c S' m � CrA yJ a W S �► W Q o m ni _ � n 44 CA) ❑ Q7 w o m � o r ^ V1 r 9! Of �o '� o A n1 3 —; gs W z z o- r r}m r.L ^ Y 7 `3° O (p ` �. p i T Ul Zee Y � ^icy r /V ryTpf Sc N F a { A o 4 aC X 8260D Appendix 1,8260D Sf M ID wI— x IX IX Nf Ag,As,Ba,B&,Cd,Co,Cr.Cu..Pb.Sb.Se,{ 9e,T1,i1.zn 0 m � . m N m n i s O m x � i c a � C ` � 01 R a � ?� n 1 � � 1 N w i • { r�! ` m b N o q CD r m y X U] m Q. + C I� { N Q w H �'.3 a s Page 31 of 36 c Sample Preservation Verification ENCO Cary Work Order: CC05278 Client: Golder Associates, Inc. (00007) Logged In: 11-Apr-19 15:14 Project: White Street LF-Phase II Non -Routine Project #: 1668421.105 Logged By: John C King Preservation Check Performed By: 0i 9 Date/Time: z/ ///C? /%)z) CCO5278-01 Cant Type Pres (pH) pH Checked 1 In Control pH Adjusted DatelTime Adjusted Reagent Used/Comments A 25OmLP+HNO3 <2 1,4 N I NA Y f N 1 NA CCO5278-02 Cant Type Pres (pH) pH Checked 1 pH Adjusted DatelTime Reagent Used/Comments Requirement In Control Adjusted A 250mLP+HNO3 <2 1J, I N I NA Y 1;'Ni I NA . CCO5278-03 Cant Type Pres (pH) pH Checked/ pH Adjusted DatelTime Reagent UsedlComments Requirement In Control Adjusted A 25OmLP+HNO3 <2 Y N I NA Y I 1 NA Reacient Name _ID 1 2 pH Strip ID:Lf,l Reagent Name ID 3 4 Reacient Name I❑ 5 fi C:IELMNT1Prinhwko_PreservationCheek.rpt Page 32 of 36 e I E m o 3 0 cc O U w 0 cn U O z a U w ac 0 a o m z O a a w 0) z O 0 J z w m z O T7 z LiJ N C Q1 coA tt E U co E �, y= -00 — F N ? a C Q r E Ca = m F- g Cfj W N n a .[ CD m E E v E k o N ?} m ❑ O ❑ cc N v 0 o � Q o � E � e U b � p m Q c S U E m Z b 3. U ✓ Q m d ` m m m m Yi S ,o N a m m Z C m m m U X cc E 0 1 M z m mW 1 fm] W qci V t� 2 E y c `ve, o � v N C E m E o m 0 0 5 m O L m � a lL_ c IQO GQ .y � m m E m J I W � o Z 43zrr ai o a m o a Q Q{G m a i 4 i N z V O c Y � ew V E ❑ m c cc m s Z � 'R R N ❑ v a M l{�" E 1 E m i E Page 33 of 36 U - U� 4 CJ F� � N m ❑ Sample Preservation Verification ENCO Cary Work Order: CC06043 Client: Golder Associates, Inc. (GO007) Project: White Street LF-Phase 11 Non -Routine Project #: 1668421.105 Logged In: 12-Apr-19 15:57 r Logged By: Rachel Ann Yonish Preservation Check Performed By: I P _ Date/Time: 1 2- b CCO6043-01 Cont T e Yp Pres (pH) Requirement pH Checked / .-4t? Control Daterrime pH Adjusted Adiusted Reagent Used/Comments A 250rnLP+HNO3 <2 Y N I NA Y N NA Rea ent Name ID 1 2 pH Strip ID: PH Strips C8J0741 C:%elmnt\Prir,,%vvnu_ri UaVi vdLiUriunecK.rpt Rea ent Name 10 3 4 Rea ent Name ID 5 6 Page 34 of 36 E 0 u ` 2 w v Cn UJ m y c a m Z c� co N lei C awi w T (�6 � n O U � a U7 0 m a y�jti►� 1' Icy, a 4 a a92.�' � �s�uad�y one o m g C_ pKp y v cv- � b W m 95 cn d O a ¢ m t'n v 6 4 �r U Q c x M o m coc i/ ` A W 4 m m m afo U 6 U U7 ar Sample Preservation Verification ENCO Cary Work Orden CC06074 Project: White Street LF-Phase II Non -Routine Client: Golder Associates, Inc. (00007) Project #: 1668421.105 Logged In: 15-Apr-19 15�41 Logged By: Rachel Ann �Y nishr Preservation Check Performed By: �w Date/Time: '1 �� Si{ G( 1-366 CC06074-01 Cont Type . Pres (pH) Requirement pH Checked ! In Control pH Adjusted DatelTime Adjusted Reagent Used/Comments A 25AmLP+HNO3 <2 / N 1 NA 71 / NA Rea ent Name ID 1 2 pH Strip ID: PH Strips C8J0741 C:\elmntlPr61L%YYNU_1.w.,, .�...,Pt Rea ent Name ID 3 4 Rea ent Name ID 5 6 Page 36 of 36 WORK ORDER Printed: 4/25/2019 3:35:50PM CC05278 ENCO Cary Sample Receipt Conditions Client: Golder Associates, Inc. (G0007) Lab Project Mgr: Stephanie Franz Project: White Street LF-Phase II Non -Routine Project Number: 1668421.105 PO #: Report To: Invoice To: Golder Associates, Inc. (G0007) City of Greensboro (CI034) Dusty Reedy Richard Lovett 5B Oak Branch Drive 401 Patton Ave Greensboro, NC 27407 Greensboro, NC 27406 Phone: (336) 852-4903 Phone :(336) 373-4188 Fax: (336) 852-4904 Fax: Received By: David E. Wilder Date Received: 11-Apr-19 08:00 Logged In By: John C King Date Logged In: 11-Apr-19 15:14 Work Order Comments: C-1901 received at 0.7°C Containers Intact Y Containers Properly Preserved Y Proper Containers Received Y All Samples in PreLog Received Y COC/Labels Agree Y Custody Seals Intact Y Volatile Containers Preserved Y Volatile Containers Headspace Free Y Aqueous Samples Checked for Residual Cl N Received On Ice Y Temperature Corrected Y Page 1 of 1 WORK ORDER Printed: 4/25/2019 3:35:32PM CC06043 ENCO Cary Sample Receipt Conditions Client: Golder Associates, Inc. (G0007) Lab Project Mgr: Stephanie Franz Project: White Street LF-Phase II Non -Routine Project Number: 1668421.105 PO #: Report To: Invoice To: Golder Associates, Inc. (G0007) City of Greensboro (CI034) Dusty Reedy Richard Lovett 5B Oak Branch Drive 401 Patton Ave Greensboro, NC 27407 Greensboro, NC 27406 Phone: (336) 852-4903 Phone :(336) 373-4188 Fax: (336) 852-4904 Fax: Received By: Rachel Ann Yonish Date Received: 12-Apr-19 10:30 Logged In By: Rachel Ann Yonish Date Logged In: 12-Apr-19 15:57 Work Order Comments: C-1901 received at 2.6°C Containers Intact Y Containers Properly Preserved Y Proper Containers Received Y All Samples in PreLog Received Y COC/Labels Agree Y Custody Seals Intact Y Volatile Containers Preserved Y Volatile Containers Headspace Free Y Aqueous Samples Checked for Residual Cl N Received On Ice Y Temperature Corrected Y Page 1 of 1 WORK ORDER Printed: 4/25/2019 3:35:20PM CC06074 ENCO Cary Sample Receipt Conditions Client: Golder Associates, Inc. (G0007) Lab Project Mgr: Stephanie Franz Project: White Street LF-Phase II Non -Routine Project Number: 1668421.105 PO #: Report To: Invoice To: Golder Associates, Inc. (G0007) City of Greensboro (CI034) Dusty Reedy Richard Lovett 5B Oak Branch Drive 401 Patton Ave Greensboro, NC 27407 Greensboro, NC 27406 Phone: (336) 852-4903 Phone :(336) 373-4188 Fax: (336) 852-4904 Fax: Received By: David E. Wilder Date Received: 15-Apr-19 10:00 Logged In By: Rachel Ann Yonish Date Logged In: 15-Apr-19 15:41 Work Order Comments: C-1901 received at 0.7°C Containers Intact Y Containers Properly Preserved Y Proper Containers Received Y All Samples in PreLog Received Y COC/Labels Agree Y Custody Seals Intact Y Volatile Containers Preserved Y Volatile Containers Headspace Free Y Aqueous Samples Checked for Residual Cl N Received On Ice Y Temperature Corrected Y Reviewed By Date Page 1 of 1 GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 1 of 3 Project Name: White Street Landfill — Phase II Non -Routine Project Reference Number: 1668421.105 Sampling Event Date: April 7-15, 2019 Review Date: May 2, 2019 Report #. CC05278,CCO6043,CCO6074 GOLD,,> ER Signature: ��F r / L, l P,�/r'r� t/� Date: S - 2- - f j QA/QC Sign Off. ��.�/lG,,�._ p�� Date: S 2 —/ 1 Initials: AM Person(s) performing the review are to initial each item on this form as acknowledgement of data acceptance, or as acknowledgement of a review issue. In the case of the latter, a brief explanation should follow the applicable item. Golder Associates Inc. has reviewed the laboratory certificates of analysis, chain -of -custody form, and laboratory provided sample group quality assurance and quality control data for the above referenced sample group to identify potential bias or inaccuracy, in general accordance with the following United States Environmental Protection Agency documents: • Region III Modifications to Functional Guidelines for Organic Data Review Multi -Media, Multi -Concentration, September 1994; • Region III Modifications to the Laboratory Data Validation Functional Guidelines for Evaluating Inorganic Analyses, April 1993; and • Laboratory Data Validation Functional Guidelines for Evaluating Inorganic Analyses, July 1998. COMPLIANCE ANALYTE LIST(S) (check all that apply) NC Closed Facility/C & D List NC Appendix I NC Appendix I + Detects X NC Appendix II NC Subtitle D Leachate List Other: 1.0 CHAIN OF CUSTODY (COC) REVIEW AM COC was properly signed by all parties. AM Correct project name and number are on the form. AM Sample receipt condition at laboratory was acceptable. AM Each sample and blank submitted for analysis appears in the report. 2.0 SAMPLE HOLDING TIMES AM Holding times for extraction and/or analysis were met for each analytical GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 2 of 3 Method (see below for reference). GOLDER Review Criteria Method Anal es Holding Time SW-846 Method 8260 and 8011 VOCs 14 days SW-846 Methods 8270, 8080, 8081, 8082, and 8151 SVOCs, PCBs, pesticides and herbicides 7 days for extraction, 40 days from extraction for analysis SW-846 Methods 6000 and 7000 Series Metals except mercury 6 months (no temperature requirements) SW-846 Method 7470 Mercury 28 days SW-846 Method 376.1 Sulfide 7 days SW-846 Method 9010 Cyanide 14 days EPA Method 300 Nitrate/Sulfate 48 hours/28 days EPA Method 405.1 BOD 48 hours EPA Method 410.4 COD 28 days EPA Method 365.4 Phosphorous 28 days 3.0 LABORATORY QUALITY CONTROL REVIEW AM Laboratory analyzed at least one internal blank for each method, where applicable. AM Laboratory blank is interference -free. AM Surrogate recoveries are provided for each analytical method, where applicable. AM Surrogate recoveries for each method are within the acceptable limits (i.e., at least 50% of the surrogates were within range). AM MS/MSD/LCS data results are provided for each analytical method. AM MS/MSD/LCS recoveries for each method are within the acceptable limits (i.e., at least 1 of the 3 were within range). 4.0 ANALYTE LISTS/METHODS AM The proper number of constituents are present for each analyte list as identified above (including detects where applicable). AM Proper EPA SW-846 analytical methods were used for analysis. 5.0 DATA REPORTING AM All analytical reporting associated with the event was performed by the contracted lab. AM Trip, field and/or equipment, and laboratory blank results have all been reported. All detects for blanks are listed below by constituent. All laboratory method blanks, if any, have been 'flagged' with a 'B' where detected in other samples as appropriate and a laboratory narrative was provided. If the sample was flagged by the laboratory and is not within 5X of the concentration in the blank (or 1 OX for commonly detected laboratory GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW G O L D E R Page 3 of 3 contaminants -acetone, methylene chloride and phthalates), list below with explanation if flags should be removed. If flags need to be added for samples, also list below. AM It is clear from the laboratory report that samples have or have not been diluted during analysis, and if the samples have been diluted, the result is reported as a multiple of the dilution (e.g., a sample diluted 10x resulting in an analytical detection of 1.0 should be reported as 10). Those that have been diluted are listed below with the dilution factor. AM The report provides the reporting limit for each constituent. AM The results were reported at or below their proper reporting limits (e.g., NC Solid Waste Section Reporting Limits-SWSLs). Those that are not reported correctly are listed below (by constituent) with the proper reporting limit listed beside them. State if the reporting limit error is due to dilutions. NC 2L Exceedances ➢ Cobalt ( NC2L = 1 ug/L) • SMW-3 @ 3.16 ug/L • II-9 @ 5.42 ug/L • II-313 @ 2.77 ug/L • SMW-1 @ 8.20 ug1L ➢ Vanadium (NC2L = 0.3 ug/L) • SMW-3 @ 2.62 ug/L • II-9 @ 1.74 ug/L • SMW-1 @ 2.15 ug/L ➢ Vinyl Chloride (NC2L = 0.3 ug/L) • SMW-3 @ 1.1 ug/L ➢ 1,4-Dioxane (NC2L = 3 ug/L) • SMW-4 @ 12 ug/L • II-313 @ 3.9 ug/L • SMW-1 @ 4.9 ug/L ➢ Cadmium ( NC2L= 2 ug/L) • SMW-1 @ 15.0 ug/L AM No inorganic or organic constituents were reported above their respective NC 2L Drinking Water Standards or Groundwater Protection Standards (GPS) in wells or field/equipment/trip blanks or above applicable Surface Water Standards for surface water points. AM No quantifiable inorganic or organic constituents were detected in a well or surface water point at concentrations outside of their historical range (more than 5X previous concentrations or first-time detections). AM Other report issues/Communications with laboratory/etc.: ENCO Laboratones Accurate. Timely. Responsive. Innovative. 102-A Woodwinds Industrial Court Cary NC, 27511 Phone: 919.467.3090 FAX: 919.467.3515 Wednesday, April 24, 2019 Golder Associates, Inc. (GO007) Attn: Dusty Reedy 5B Oak Branch Drive Greensboro, NC 27407 RE: Laboratory Results for Project Number: 1668421.105, Project Name/Desc: White Street LF-Phase I,II GW/SW ENCO Workorder(s): CC05274,CC06033 Dear Dusty Reedy, Enclosed is a copy of your laboratory report for test samples received by our laboratory between Wednesday, April 10, 2019 and Friday, April 12, 2019. Unless otherwise noted in an attached project narrative, all samples were received in acceptable condition and processed in accordance with the referenced methods/procedures. Results for these procedures apply only to the samples as submitted. The analytical results contained in this report are in compliance with NELAC standards, except as noted in the project narrative if applicable. This report shall not be reproduced except in full, without the written approval of the Laboratory. This report contains only those analyses performed by Environmental Conservation Laboratories. Unless otherwise noted, all analyses were performed at ENCO Cary. Data from outside organizations will be reported under separate cover. If you have any questions or require further information, please do not hesitate to contact me. Sincerely, Stephanie Franz Project Manager Enclosure(s) FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 1 of 24 PROJECT NARRATIVE Date: 24 April 2019 Client: Golder Associates, Inc. (G0007) Project: White Street LF-Phase 1,11 GW/SW Lab ID: C05274, CC06033 Overview (� �Eo www.encolabs.com Environmental Conservation Laboratories, Inc. (ENCO) analyzed all submitted samples in accordance with the methods referenced in the laboratory report. Any particular difficulties encountered during sample handling by ENCO are discussed in the QC Remarks section below. Quality Control Samples The spike recoveries of Benzene and Trichloroethene were outside of control limits for the 8260D MS and/or MSD samples. The QC batches were approved based on acceptable LCS recovery of these analytes. LCS/LCSD were analyzed in place of the MS/MSD for the 8260D SIM analysis for 1,4-Dioxane. The spike recovery of Arsenic was outside of control limits for the 601 OD MS, MSD, and Post Spike samples. The QC batch was approved based on acceptable LCS recovery of this element. Quality Control Remarks The 8260D SIM Surrogate spike recovery of Toluene-d8 exceeded acceptance criteria for the LCS sample. Other Comments All samples received under this project arrived in acceptable conditions. The samples were not checked for residual chlorine, as it is not required. The analytical data presented in this report are consistent with the methods as referenced in the analytical report. Any exceptions or deviations are noted in the QC remarks section of this narrative or in the Flags/Notes and Definitions section of the report. Released By: Environmental Conservation Laboratories, Inc. Stephanie Franz Project Manager FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 2 of 24 (� �Eo www.encolabs.com SAMPLE SUMMARY/LABORATORY CHRONICLE Client ID: 4103-MW13 Lab ID: CCO5274-01 Sampled: 04/09/19 09:42 Received: 04/10/19 08:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 10/06/19 04/16/19 07:51 04/18/19 12:03 EPA 6010D EPA 3005A 10/06/19 04/16/19 08:25 04/17/19 10:44 EPA 6020E EPA 3005A 10/06/19 04/11/19 13:32 04/16/19 12:05 EPA 7470A EPA 7470A 05/07/19 04/17/19 13:39 04/18/19 17:15 EPA 8260D EPA 5030B_MS 04/23/19 04/11/19 15:25 04/12/19 04:10 EPA 8260D EPA 5030B_MS 04/23/19 04/12/19 00:00 04/12/19 18:03 Client ID: 4103-SW5 Lab ID: CC06033-01 Sampled: 04/11/19 15:00 Received: 04/12/19 10:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 10/08/19 04/20/19 13:50 04/23/19 13:12 EPA 6020B EPA 3005A 10/08/19 04/18/19 08:14 04/22/19 12:49 EPA 8260D EPA 503013_MS 04/25/19 04/17/19 13:38 04/18/19 08:44 EPA 8260D EPA 503013_MS 04/25/19 04/18/19 16:33 04/19/19 11:31 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 3 Of 24 (� �Eo www.encolabs.com SAMPLE DETECTION SUMMARY Client ID: 4103-MW13 Lab ID: CC05274-01 Anala Results Flag MDL POLL Units Method Notes Barium - Total 95.9 1.10 10.0 ug/L EPA 6010D Vanadium - Total 5.22 1 1.40 10.0 ug/L EPA 6010D Zinc - Total 13.0 4.40 10.0 ug/L EPA 6010D Client ID: 4103-SWS Lab ID: CC06033-01 Anala Results Flag MDL POLL Units Method Notes Barium - Total 56.6 1.10 10.0 ug/L EPA 6010D Chromium - Total 2.09 1 1.40 10.0 ug/L EPA 6010D Copper - Total 4.18 1 1.60 10.0 ug/L EPA 6010D Vanadium - Total 2.09 1 1.40 10.0 ug/L EPA 6010D Zinc - Total 15.6 4.40 10.0 ug/L EPA 6010D FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 4 Of 24 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4103-MW13 Lab Sample ID:CC05274-01 Received: 04/10/19 08:30 Matrix: Ground Water Sampled:04/09/19 09:42 Work Order: CCO5274 Project: White Street LF-Phase I,II GW/SW Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flao Units DF MDL Q Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]^ 0.17 U ug/L 1 0.17 1.0 9DII024 EPA 8260D 04/12/19 04:10 MRK 1,1,1-Trichloroethane [71-55-6]^ 0.12 U ug/L 1 0.12 1.0 9DII024 EPA 8260D 04/12/19 04:10 MRK 1,1,2,2-Tetrachloroethane [79-34-5]^ 0.28 U ug/L 1 0.28 1.0 9DII024 EPA 8260D 04/12/19 04:10 MRK 1,1,2-Trichloroethane [79-00-5]^ 0.14 U ug/L 1 0.14 1.0 9DII024 EPA 8260D 04/12/19 04:10 MRK 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 9DII024 EPA 8260D 04/12/19 04:10 MRK 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 9DII024 EPA 8260D 04/12/19 04:10 MRK 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 9DII024 EPA 8260D 04/12/19 04:10 MRK 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 9DII024 EPA 8260D 04/12/19 04:10 MRK 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 9DII024 EPA 8260D 04/12/19 04:10 MRK 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 9DII024 EPA 8260D 04/12/19 04:10 MRK 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 9DII024 EPA 8260D 04/12/19 04:10 MRK 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 9DII024 EPA 8260D 04/12/19 04:10 MRK 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 9DII024 EPA 8260D 04/12/19 04:10 MRK 2-Butanone [78-93-3]^ 1.3 U ug/L 1 1.3 5.0 9DII024 EPA 8260D 04/12/19 04:10 MRK 2-Hexanone [591-78-6]^ 0.88 U ug/L 1 0.88 5.0 9DII024 EPA 8260D 04/12/19 04:10 MRK 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 9DII024 EPA 8260D 04/12/19 04:10 MRK Acetone [67-64-1]^ 10 U ug/L 1 10 20 9DII024 EPA 8260D 04/12/19 04:10 MRK Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 9DII024 EPA 8260D 04/12/19 04:10 MRK Benzene[71-43-2]^ 0.15 U ug/L 1 0.15 1.0 9DII024 EPA 8260D 04/12/19 04:10 MRK Bromochloromethane [74-97-5]^ 0.48 U ug/L 1 0.48 1.0 9DII024 EPA 8260D 04/12/19 04:10 MRK Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 9DII024 EPA 8260D 04/12/19 04:10 MRK Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 9DII024 EPA 8260D 04/12/19 04:10 MRK Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 9DII024 EPA 8260D 04/12/19 04:10 MRK Carbon disulfide [75-15-0]^ 1.5 U ug/L 1 1.5 5.0 9DII024 EPA 8260D 04/12/19 04:10 MRK Carbon tetrachloride [56-23-5]^ 0.17 U ug/L 1 0.17 1.0 9DII024 EPA 8260D 04/12/19 04:10 MRK Chlorobenzene [108-90-7]^ 0.17 U ug/L 1 0.17 1.0 9DII024 EPA 8260D 04/12/19 04:10 MRK Chloroethane [75-00-3]^ 0.23 U ug/L 1 0.23 1.0 9DII024 EPA 8260D 04/12/19 04:10 MRK Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 9DII024 EPA 8260D 04/12/19 04:10 MRK Chloromethane [74-87-3]^ 0.13 U ug/L 1 0.13 1.0 9DII024 EPA 8260D 04/12/19 04:10 MRK cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 9DII024 EPA 8260D 04/12/19 04:10 MRK cis-1,3-Dichloropropene [10061-01-5]^ 0.20 U ug/L 1 0.20 1.0 9DII024 EPA 8260D 04/12/19 04:10 MRK Dibromochloromethane [124-48-1]^ 0.17 U ug/L 1 0.17 1.0 9DII024 EPA 8260D 04/12/19 04:10 MRK Dibromomethane [74-95-3]^ 0.27 U ug/L 1 0.27 1.0 9DII024 EPA 8260D 04/12/19 04:10 MRK Ethylbenzene [100-41-4]^ 0.13 U ug/L 1 0.13 1.0 9DII024 EPA 8260D 04/12/19 04:10 MRK Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 9DII024 EPA 8260D 04/12/19 04:10 MRK Methylene chloride [75-09-2]^ 0.23 U ug/L 1 0.23 1.0 9DII024 EPA 8260D 04/12/19 04:10 MRK Styrene [100-42-5]^ 0.11 U ug/L 1 0.11 1.0 9DII024 EPA 8260D 04/12/19 04:10 MRK Tetrachloroethene [127-18-4]^ 0.17 U ug/L 1 0.17 1.0 9DII024 EPA 8260D 04/12/19 04:10 MRK Tetrahydrofuran [109-99-9]^ 0.53 U ug/L 1 0.53 1.0 9DII024 EPA 8260D 04/12/19 04:10 MRK Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 9DII024 EPA 8260D 04/12/19 04:10 MRK trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 9DII024 EPA 8260D 04/12/19 04:10 MRK trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 9DII024 EPA 8260D 04/12/19 04:10 MRK trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 U ug/L 1 0.70 1.0 9DII024 EPA 8260D 04/12/19 04:10 MRK Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 9DII024 EPA 8260D 04/12/19 04:10 MRK Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 9DII024 EPA 8260D 04/12/19 04:10 MRK Vinyl acetate [108-05-4]^ 0.95 U ug/L 1 0.95 5.0 9DII024 EPA 8260D 04/12/19 04:10 MRK Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 9DII024 EPA 8260D 04/12/19 04:10 MRK FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 5 Of 24 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-MW13 Lab Sample ID:CC05274-01 Received: 04/10/19 08:30 Matrix: Ground Water Sampled:04/09/19 09:42 Work Order: CC05274 Project: White Street LF-Phase I,II GW/SW Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte MAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes Xylenes (Total) [1330-20-7]1 0.45 U ug/L 1 0.45 3.0 9D11024 EPA 8260D 04/12/19 04:10 MRK Surrogates Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes 4-Bromofluorobenzene 58 1 50.0 115 % 53-136 9DII024 EPA 8260D 04112119 04:10 MRK Dlbromofluoromethane 49 1 50.0 98 % 67-129 9D11024 EPA 6260D 04112119 04:10 MRK Toluene-d8 55 1 50.0 ill % 59-134 9D11024 EPA 8260D 04112119 04:10 MRK Metals by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed By Notes Mercury [7439-97-6]^ 0.150 U ug/L 1 0.150 0.200 9D17032 EPA 7470A 04/18/19 17:15 RLF Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed By Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 9D11020 EPA 6020B 04/16/19 12:05 CM K Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 9D16006 EPA 6010D 04/17/19 10:44 JDH Barium [7440-39-3]^ 95.9 ug/L 1 1.10 10.0 91D16006 EPA 6010D 04/17/19 10:44 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 9D16006 EPA 6010D 04/17/19 10:44 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 9D16006 EPA 6010D 04/17/19 10:44 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 9D16006 EPA 6010D 04/17/19 10:44 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 9D16006 EPA 6010D 04/17/19 10:44 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 9D16006 EPA 6010D 04/17/19 10:44 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 9D16006 EPA 6010D 04/17/19 10:44 JDH Nickel[7440-02-0]^ 2.20 U ug/L 1 2.20 10.0 9D16006 EPA 6010D 04/17/19 10:44 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 9D16004 EPA 6010D 04/18/19 12:03 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 9D16004 EPA 6010D 04/18/19 12:03 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 9D11020 EPA 6020B 04/16/19 12:05 CM K Vanadium [7440-62-2]^ 5.22 J ug/L 1 1.40 10.0 91D16004 EPA 6010D 04/18/19 12:03 JDH Zinc[7440-66-6]^ 13.0 ug/L 1 4.40 10.0 91D16004 EPA 6010D 04/18/19 12:03 JDH Volatile Organic Compounds by GCMS SIM Isotope Dilution Analyte rCAS Numberl 1,4-Dioxane [123-91-1] Surrogates Toluene-& Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes 1.2 U ug/L 1 1.2 2.0 9D12022 EPA 8260D 04/12/19 18:03 KKW Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 5.4 1 5.00 108 % 75-125 9D12022 EPA 8260D 04112119 18:03 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 6 Of 24 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-SW5 Lab Sample ID:CC06033-01 Received: 04/12/19 10:30 Matrix: Surface Water Sampled:04/11/19 15:00 Work Order: CC06033 Project: White Street LF-Phase I,II GW/SW Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte ICAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]^ 0.17 U ug/L 1 0.17 1.0 9D18042 EPA 8260D 04/19/19 11:31 MRK 1,1,1-Trichloroethane [71-55-6]^ 0.12 U ug/L 1 0.12 1.0 9D18042 EPA 8260D 04/19/19 11:31 MRK 1,1,2,2-Tetrachloroethane [79-34-5]^ 0.28 U ug/L 1 0.28 1.0 9D18042 EPA 8260D 04/19/19 11:31 MRK 1,1,2-Trichloroethane [79-00-5]^ 0.14 U ug/L 1 0.14 1.0 9D18042 EPA 8260D 04/19/19 11:31 MRK 1,1-Dichloroethane [75-34-3]1 0.13 U ug/L 1 0.13 1.0 9D18042 EPA 8260D 04/19/19 11:31 MRK 1,1-Dichloroethene [75-35-4]1 0.21 U ug/L 1 0.21 1.0 9D18042 EPA 8260D 04/19/19 11:31 MRK 1,2,3-Trichloropropane [96-18-4]1 0.23 U ug/L 1 0.23 1.0 9D18042 EPA 8260D 04/19/19 11:31 MRK 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 9D18042 EPA 8260D 04/19/19 11:31 MRK 1,2-Dibromoethane [106-93-4]1 0.66 U ug/L 1 0.66 1.0 9D18042 EPA 8260D 04/19/19 11:31 MRK 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 9D18042 EPA 8260D 04/19/19 11:31 MRK 1,2-Dichloroethane [107-06-2]1 0.21 U ug/L 1 0.21 1.0 9D18042 EPA 8260D 04/19/19 11:31 MRK 1,2-Dichloropropane [78-87-5]1 0.10 U ug/L 1 0.10 1.0 9D18042 EPA 8260D 04/19/19 11:31 MRK 1,4-Dichlorobenzene [106-46-7]1 0.19 U ug/L 1 0.19 1.0 9D18042 EPA 8260D 04/19/19 11:31 MRK 2-Butanone [78-93-3]^ 1.3 U ug/L 1 1.3 5.0 9D18042 EPA 8260D 04/19/19 11:31 MRK 2-Hexanone [591-78-6]1 0.88 U ug/L 1 0.88 5.0 9D18042 EPA 8260D 04/19/19 11:31 MRK 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 9D18042 EPA 8260D 04/19/19 11:31 MRK Acetone [67-64-1]^ 10 U ug/L 1 10 20 9D18042 EPA 8260D 04/19/19 11:31 MRK Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 9D18042 EPA 8260D 04/19/19 11:31 MRK Benzene [71-43-2]^ 0.15 U ug/L 1 0.15 1.0 9D18042 EPA 8260D 04/19/19 11:31 MRK Bromochloromethane [74-97-5]^ 0.48 U ug/L 1 0.48 1.0 9D18042 EPA 8260D 04/19/19 11:31 MRK Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 9D18042 EPA 8260D 04/19/19 11:31 MRK Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 9D18042 EPA 8260D 04/19/19 11:31 MRK Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 9D18042 EPA 8260D 04/19/19 11:31 MRK Carbon disulfide [75-15-0]^ 1.5 U ug/L 1 1.5 5.0 9D18042 EPA 8260D 04/19/19 11:31 MRK Carbon tetrachloride [56-23-5]^ 0.17 U ug/L 1 0.17 1.0 9D18042 EPA 8260D 04/19/19 11:31 MRK Chlorobenzene [108-90-7]^ 0.17 U ug/L 1 0.17 1.0 9D18042 EPA 8260D 04/19/19 11:31 MRK Chloroethane [75-00-3]^ 0.23 U ug/L 1 0.23 1.0 9D18042 EPA 8260D 04/19/19 11:31 MRK Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 9D18042 EPA 8260D 04/19/19 11:31 MRK Chloromethane [74-87-3]^ 0.13 U ug/L 1 0.13 1.0 9D18042 EPA 8260D 04/19/19 11:31 MRK cis- 1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 9D18042 EPA 8260D 04/19/19 11:31 MRK cis- 1,3-Dichloropropene [10061-01-5]^ 0.20 U ug/L 1 0.20 1.0 9D18042 EPA 8260D 04/19/19 11:31 MRK Dibromochloromethane [124-48-1]^ 0.17 U ug/L 1 0.17 1.0 9D18042 EPA 8260D 04/19/19 11:31 MRK Dibromomethane [74-95-3]^ 0.27 U ug/L 1 0.27 1.0 9D18042 EPA 8260D 04/19/19 11:31 MRK Ethylbenzene [100-41-4]^ 0.13 U ug/L 1 0.13 1.0 9D18042 EPA 8260D 04/19/19 11:31 MRK Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 9D18042 EPA 8260D 04/19/19 11:31 MRK Methylene chloride [75-09-2]^ 0.23 U ug/L 1 0.23 1.0 9D18042 EPA 8260D 04/19/19 11:31 MRK Styrene [100-42-5]^ 0.11 U ug/L 1 0.11 1.0 9D18042 EPA 8260D 04/19/19 11:31 MRK Tetrachloroethene [127-18-4]^ 0.17 U ug/L 1 0.17 1.0 9D18042 EPA 8260D 04/19/19 11:31 MRK Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 9D18042 EPA 8260D 04/19/19 11:31 MRK trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 9D18042 EPA 8260D 04/19/19 11:31 MRK trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 9D18042 EPA 8260D 04/19/19 11:31 MRK trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 U ug/L 1 0.70 1.0 9D18042 EPA 8260D 04/19/19 11:31 MRK Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 9D18042 EPA 8260D 04/19/19 11:31 MRK Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 9D18042 EPA 8260D 04/19/19 11:31 MRK Vinyl acetate [108-05-4]^ 0.95 U ug/L 1 0.95 5.0 9D18042 EPA 8260D 04/19/19 11:31 MRK Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 9D18042 EPA 8260D 04/19/19 11:31 MRK Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 9D18042 EPA 8260D 04/19/19 11:31 MRK FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 7 Of 24 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-SW5 Lab Sample ID:CC06033-01 Received: 04/12/19 10:30 Matrix: Surface Water Sampled:04/11/19 15:00 Work Order: CC06033 Project: White Street LF-Phase I,II GW/SW Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed Notes 4-Bromofluorobenzene 58 1 50.0 117 % 53-136 9D18042 EPA 8260D 04119119 11:31 MRK Dlbromofluoromethane 46 1 50.0 93 % 67-129 9D18042 EPA 8260D 0411911911:31 MRK Toluene-& 54 1 50.0 109 % 59-134 9D18042 EPA 8260D 0411911911:31 MRK Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 9D18011 EPA 6020E 04/22/19 12:49 CM K Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 9D20013 EPA 6010D 04/23/19 13:12 ]DH Barium [7440-39-3]^ 56.6 ug/L 1 1.10 10.0 9D20013 EPA 6010D 04/23/19 13:12 ]DH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 9D20013 EPA 6010D 04/23/19 13:12 ]DH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 9D20013 EPA 6010D 04/23/19 13:12 ]DH Chromium [7440-47-3]^ 2.09 J ug/L 1 1.40 10.0 9D20013 EPA 6010D 04/23/19 13:12 ]DH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 9D20013 EPA 6010D 04/23/19 13:12 ]DH Copper[7440-50-8]^ 4.18 J ug/L 1 1.60 10.0 9D20013 EPA 6010D 04/23/19 13:12 ]DH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 9D20013 EPA 6010D 04/23/19 13:12 ]DH Nickel[7440-02-0]^ 2.20 U ug/L 1 2.20 10.0 9D20013 EPA 6010D 04/23/19 13:12 ]DH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 9D20013 EPA 6010D 04/23/19 13:12 ]DH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 9D20013 EPA 6010D 04/23/19 13:12 ]DH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 9D18011 EPA 6020E 04/22/19 12:49 CM K Vanadium [7440-62-2]^ 2.09 J ug/L 1 1.40 10.0 9D20013 EPA 6010D 04/23/19 13:12 ]DH Zinc [7440-66-6]^ 15.6 ug/L 1 4.40 10.0 9D20013 EPA 6010D 04/23/19 13:12 ]DH Volatile Organic Compounds by GCMS SIM Isotope Dilution Analyte rCAS Numberl 1,4-Dioxane [123-91-1] Surrogates Toluene-d8 Results Flag Units DF MDL P L Batch Method Analyzed By Notes 1.2 U ug/L 1 1.2 2.0 9D17035 EPA 8260D 04/18/19 08:44 KKW Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes 5.2 1 5.00 104 % 75-125 9D17035 EPA 8260D 04118119 06:44 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 8 Of 24 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 9D11024 - EPA 5030E MS Blank (9D31024-BLK3) Prepared: 04/11/2019 15:25 Analyzed: 04/12/2019 01:33 Analvte Result Flaa POL Units 1, 1, 1,2-Tetrachloroethane 0.17 U 1.0 ug/L 1,1,1-Trichloroethane 0.12 U 1.0 ug/L 1,1,2,2-Tetrachloroethane 0.28 U 1.0 ug/L 1,1,2-Trichloroethane 0.14 U 1.0 ug/L 1,1-Dichloroethane 0.13 U 1.0 ug/L 1,1-Dichloroethene 0.21 U 1.0 ug/L 1,2,3-Trichloropropane 0.23 U 1.0 ug/L 1,2-Dibromo-3-chloropropane 0.48 U 1.0 ug/L 1,2-Dibromoethane 0.66 U 1.0 ug/L 1,2-Dichlorobenzene 0.19 U 1.0 ug/L 1,2-Dichloroethane 0.21 U 1.0 ug/L 1,2-Dichloropropane 0.10 U 1.0 ug/L 1,4-Dichlorobenzene 0.19 U 1.0 ug/L 2-Butanone 1.3 U 5.0 ug/L 2-Hexanone 0.88 U 5.0 ug/L 4-Methyl-2-pentanone 1.1 U 5.0 ug/L Acetone 10 U 20 ug/L Acrylonitrile 3.5 U 10 ug/L Benzene 0.15 U 1.0 ug/L Bromochloromethane 0.48 U 1.0 ug/L Bromodichloromethane 0.17 U 1.0 ug/L Bromoform 0.22 U 1.0 ug/L Bromomethane 0.14 U 1.0 ug/L Carbon disulfide 1.5 U 5.0 ug/L Carbon tetrachloride 0.17 U 1.0 ug/L Chlorobenzene 0.17 U 1.0 ug/L Chloroethane 0.23 U 1.0 ug/L Chloroform 0.18 U 1.0 ug/L Chloromethane 0.13 U 1.0 ug/L cis- 1,2-Dichloroethene 0.15 U 1.0 ug/L cis- 1,3-Dichloropropene 0.20 U 1.0 ug/L Dibromochloromethane 0.17 U 1.0 ug/L Dibromomethane 0.27 U 1.0 ug/L Ethylbenzene 0.13 U 1.0 ug/L Iodomethane 1.7 U 5.0 ug/L Methylene chloride 0.23 U 1.0 ug/L Styrene 0.11 U 1.0 ug/L Tetrachloroethene 0.17 U 1.0 ug/L Tetrahydrofuran 0.53 U 1.0 ug/L Toluene 0.14 U 1.0 ug/L trans-1,2-Dichloroethene 0.21 U 1.0 ug/L trans-1,3-Dichloropropene 0.15 U 1.0 ug/L trans-1,4-Dichloro-2-butene 0.70 U 1.0 ug/L Trichloroethene 0.15 U 1.0 ug/L Trichlorofluoromethane 0.24 U 1.0 ug/L Vinyl acetate 0.95 U 5.0 ug/L Vinyl chloride 0.32 U 1.0 ug/L Xylenes (Total) 0.45 U 3.0 ug/L Spike Source %REC RPD Level Result %REC Limits RPD Limit Notes 4-Bromofluorobenzene FINAL 60 u9/L 50.0 120 53-136 This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 9 Of 24 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 9D11024 - EPA 5030E MS - Continued Blank (9D31024-BLK3) Continued Prepared: 04/11/2019 15:25 Analyzed: 04/12/2019 01:33 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes D/bromofluoromethane 49 u91L 50.0 99 67-129 Toluene-& 56 u91L 50.0 112 59-134 LCS (91311024-BSI) Prepared: 04/11/2019 15:25 Analyzed: 04/11/2019 23:27 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 19 1.0 ug/L 20.0 95 75-133 Benzene 26 1.0 ug/L 20.0 131 80-134 Chlorobenzene 17 1.0 ug/L 20.0 87 80-120 Toluene 20 1.0 ug/L 20.0 98 71-120 Trichloroethene 24 1.0 ug/L 20.0 120 74-120 Matrix Spike (91313024-MS1) Prepared: 04/11/2019 15:25 Analyzed: 04/11/2019 23:59 Source: CC05897-09 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 22 1.0 ug/L 20.0 0.21 U 112 75-133 Benzene 27 1.0 ug/L 20.0 0.15 U 137 80-134 QM-07 Chlorobenzene 19 1.0 ug/L 20.0 0.17 U 95 80-120 Toluene 21 1.0 ug/L 20.0 0.14 U 104 71-120 Trichloroethene 26 1.0 ug/L 20.0 0.15 U 132 74-120 QM-07 Matrix Spike Dup (91313024-MS131) Prepared: 04/11/2019 15:25 Analyzed: 04/12/2019 00:30 Source: CCO5897-09 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 23 1.0 ug/L 20.0 0.21 U 116 75-133 4 20 Benzene 25 1.0 ug/L 20.0 0.15 U 124 80-134 10 17 Chlorobenzene 18 1.0 ug/L 20.0 0.17 U 90 80-120 6 16 Toluene 20 1.0 ug/L 20.0 0.14 U 101 71-120 3 17 Trichloroethene 26 1.0 ug/L 20.0 0.15 U 132 74-120 0 22 QM-07 Batch 9D18042 - EPA 5030B MS Blank (9D18042-BLK1) Prepared: 04/18/2019 16:33 Analyzed: 04/19/2019 05:45 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1,1,2-Tetrachloroethane 0.17 U 1.0 ug/L 1,1,1-Trichloroethane 0.12 U 1.0 ug/L 1,1,2,2-Tetrachloroethane 0.28 U 1.0 ug/L 1,1,2-Trichloroethane 0.14 U 1.0 ug/L 1,1-Dichloroethane 0.13 U 1.0 ug/L 1,1-Dichloroethene 0.21 U 1.0 ug/L 1,2,3-Trichloropropane 0.23 U 1.0 ug/L 1,2-Dibromo-3-chloropropane 0.48 U 1.0 ug/L 1,2-Dibromoethane 0.66 U 1.0 ug/L 1,2-Dichlorobenzene 0.19 U 1.0 ug/L 1,2-Dichloroethane 0.21 U 1.0 ug/L 1,2-Dichloropropane 0.10 U 1.0 ug/L 1,4-Dichlorobenzene 0.19 U 1.0 ug/L FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 10 Of 24 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 9D18042 - EPA 5030E MS - Continued Blank (9D38042-BLK3) Continued Prepared: 04/18/2019 16:33 Analyzed: 04/19/2019 05:45 Analvte Result Flaa POL Units 2-Butanone 1.3 U 5.0 ug/L 2-Hexanone 0.88 U 5.0 ug/L 4-Methyl-2-pentanone 1.1 U 5.0 ug/L Acetone 10 U 20 ug/L Acrylonitrile 3.5 U 10 ug/L Benzene 0.15 U 1.0 ug/L Bromochloromethane 0.48 U 1.0 ug/L Bromodichloromethane 0.17 U 1.0 ug/L Bromoform 0.22 U 1.0 ug/L Bromomethane 0.14 U 1.0 ug/L Carbon disulfide 1.5 U 5.0 ug/L Carbon tetrachloride 0.17 U 1.0 ug/L Chlorobenzene 0.17 U 1.0 ug/L Chloroethane 0.23 U 1.0 ug/L Chloroform 0.18 U 1.0 ug/L Chloromethane 0.13 U 1.0 ug/L cis- 1,2-Dichloroethene 0.15 U 1.0 ug/L cis- 1,3-Dichloropropene 0.20 U 1.0 ug/L Dibromochloromethane 0.17 U 1.0 ug/L Dibromomethane 0.27 U 1.0 ug/L Ethylbenzene 0.13 U 1.0 ug/L Iodomethane 1.7 U 5.0 ug/L Methylene chloride 0.23 U 1.0 ug/L Styrene 0.11 U 1.0 ug/L Tetrachloroethene 0.17 U 1.0 ug/L Toluene 0.14 U 1.0 ug/L trans-1,2-Dichloroethene 0.21 U 1.0 ug/L trans-1,3-Dichloropropene 0.15 U 1.0 ug/L trans-1,4-Dichloro-2-butene 0.70 U 1.0 ug/L Trichloroethene 0.15 U 1.0 ug/L Trichlorofluoromethane 0.24 U 1.0 ug/L Vinyl acetate 0.95 U 5.0 ug/L Vinyl chloride 0.32 U 1.0 ug/L Xylenes (Total) 0.45 U 3.0 ug/L Spike Source %REC RPD Level Result %REC Limits RPD Limit Notes 4-Bromofluorobenzene 56 u91L 50.0 113 53-136 Dibromofluoromethane 46 u9/L 50.0 91 67-129 Toluene-d8 54 u9/L 50.0 108 59-134 LCS (9D18042-BSI) Prepared: 04/18/2019 16:33 Analyzed: 04/19/2019 03:40 Spike Source %REC RPD Analvte Result Flaa CQ Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 18 1.0 ug/L 20.0 90 75-133 Benzene 22 1.0 ug/L 20.0 112 80-134 Chlorobenzene 19 1.0 ug/L 20.0 94 80-120 Toluene 21 1.0 ug/L 20.0 104 71-120 Trichloroethene 22 1.0 ug/L 20.0 112 74-120 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 11 Of 24 QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 9D18042 - EPA 5030E MS - Continued (� �Eo www.encolabs.com Matrix Spike (9D18042-MS3) Prepared: 04/18/2019 16:33 Analyzed: 04/19/2019 04:11 Source: CC06172-02 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 19 1.0 ug/L 20.0 0.21 U 97 75-133 Benzene 23 1.0 ug/L 20.0 0.15 U 113 80-134 Chlorobenzene 21 1.0 ug/L 20.0 0.17 U 104 80-120 Toluene 22 1.0 ug/L 20.0 0.14 U 109 71-120 Trichloroethene 26 1.0 ug/L 20.0 0.15 U 132 74-120 QM-07 Matrix Spike Dup (9D18042-MSDI) Prepared: 04/18/2019 16:33 Analyzed: 04/19/2019 04:42 Source: CC06172-02 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 18 1.0 ug/L 20.0 0.21 U 92 75-133 5 20 Benzene 21 1.0 ug/L 20.0 0.15 U 104 80-134 8 17 Chlorobenzene 19 1.0 ug/L 20.0 0.17 U 96 80-120 8 16 Toluene 20 1.0 ug/L 20.0 0.14 U 101 71-120 7 17 Trichloroethene 25 1.0 ug/L 20.0 0.15 U 124 74-120 6 22 QM-07 Metals by EPA 6000/7000 Series Methods - Quality Control Batch 9D17032 - EPA 245.1 Blank (9D17032-BLK3) Prepared: 04/17/2019 13:39 Analyzed: 04/18/2019 15:28 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Mercury 0.150 U 0.200 ug/L LCS (9D17032-BSI) Prepared: 04/17/2019 13:39 Analyzed: 04/18/2019 15:30 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Mercury 4.85 0.200 ug/L 5.00 97 80-120 Matrix Spike (9D17032-MS1) Prepared: 04/17/2019 13:39 Analyzed: 04/18/2019 15:35 Source: CC04956-01 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Mercury 4.79 0.200 ug/L 5.00 0.150 U 96 75-125 Matrix Spike (911)17032-MS2) Prepared: 04/17/2019 13:39 Analyzed: 04/18/2019 15:51 Source: CCO5816-02 Spike Source %REC RPD Analvte Result Flag Q Units Level Result %REC Limits RPD Limit Notes Mercury 5.08 0.200 ug/L 5.00 0.150 U 102 75-125 Matrix Spike Dup (9D17032-MSD1) Prepared: 04/17/2019 13:39 Analyzed: 04/18/2019 15:37 Source: CC04956-01 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Mercury 4.95 0.200 ug/L 5.00 0.150 U 99 75-125 3 25 Matrix Spike Dup (9D17032-MSD2) Prepared: 04/17/2019 13:39 Analyzed: 04/18/2019 15:53 Source: CCO5816-02 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Mercury 4.82 0.200 ug/L 5.00 0.150 U 96 75-125 5 25 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 12 Of 24 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals by EPA 6000/7000 Series Methods - Quality Control Batch 9D17032 - EPA 245.1 - Continued Post Spike (9D17032-PS3) Prepared: 04/17/2019 13:39 Analyzed: 04/18/2019 15:40 Source: CC04956-01 Spike Source %REC RPD Analvte Result Flaq Q Units Level Result %REC Limits RPD Limit Notes Mercury 5.69 0.200 ug/L 4.76 -0.0162 119 75-125 Post Spike (9D17032-PS2) Prepared: 04/17/2019 13:39 Analyzed: 04/18/2019 15:55 Source: CCO5816-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 5.66 0.200 ug/L 4.76 0.0114 119 75-125 Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 9D11020 - EPA 3005A Blank (9D31020-BLK3) Prepared: 04/11/2019 13:32 Analyzed: 04/16/2019 10:39 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 0.370 U 1.00 ug/L Thallium 0.110 U 1.00 ug/L LCS (9D11020-BS1) Prepared: 04/11/2019 13:32 Analyzed: 04/16/2019 10:48 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 19.7 1.00 ug/L 20.0 99 80-120 Thallium 20.7 1.00 ug/L 20.0 103 80-120 Matrix Spike (9D11020-MS1) Prepared: 04/11/2019 13:32 Analyzed: 04/16/2019 10:52 Source: CC04956-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 39.9 2.00 ug/L 40.0 0.740 U 100 75-125 Thallium 40.9 2.00 ug/L 40.0 0.220 U 102 75-125 Matrix Spike Dup (91311020-MS131) Prepared: 04/11/2019 13:32 Analyzed: 04/16/2019 10:56 Source: CC04956-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 40.6 2.00 ug/L 40.0 0.740 U 102 75-125 2 20 Thallium 41.2 2.00 ug/L 40.0 0.220 U 103 75-125 0.7 20 Post Spike (9D31020-PS3) Prepared: 04/11/2019 13:32 Analyzed: 04/16/2019 11:01 Source: CC04956-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 20.6 1.00 ug/L 20.0 0.189 102 75-125 Thallium 20.7 1.00 ug/L 20.0 0.0328 104 75-125 Batch 9D16004 - EPA 3005A Blank (9D16004-BLK1) Prepared: 04/16/2019 07:51 Analyzed: 04/18/2019 11:00 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Selenium 6.20 U 10.0 ug/L Silver 1.90 U 10.0 ug/L FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 13 of 24 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 9D16004 - EPA 3005A - Continued Blank (9D36004-BLK3) Continued Prepared: 04/16/2019 07:51 Analyzed: 04/18/2019 11:00 Spike Source %REC RPD Analvte Result Flaq Q Units Level Result %REC Limits RPD Limit Notes Vanadium 1.40 U 10.0 ug/L Zinc 4.40 U 10.0 ug/L LCS (91316004-BSI) Prepared: 04/16/2019 07:51 Analyzed: 04/18/2019 11:22 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Selenium 217 10.0 ug/L 200 108 80-120 Silver 230 10.0 ug/L 200 115 80-120 Vanadium 219 10.0 ug/L 200 109 80-120 Zinc 217 10.0 ug/L 200 109 80-120 Matrix Spike (91316004-1VIS3) Prepared: 04/16/2019 07:51 Analyzed: 04/18/2019 11:26 Source: CC04956-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Selenium 181 10.0 ug/L 200 6.20 U 91 75-125 Silver 183 10.0 ug/L 200 1.90 U 91 75-125 Vanadium 178 10.0 ug/L 200 1.40 U 89 75-125 Zinc 192 10.0 ug/L 200 5.78 93 75-125 Matrix Spike Dup (91316004-MS131) Prepared: 04/16/2019 07:51 Analyzed: 04/18/2019 11:28 Source: CC04956-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Selenium 190 10.0 ug/L 200 6.20 U 95 75-125 5 20 Silver 185 10.0 ug/L 200 1.90 U 92 75-125 1 20 Vanadium 181 10.0 ug/L 200 1.40 U 90 75-125 1 20 Zinc 185 10.0 ug/L 200 5.78 89 75-125 4 20 Post Spike (91336004-PS3) Prepared: 04/16/2019 07:51 Analyzed: 04/18/2019 11:30 111 Source: CC04956-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Selenium 0.213 0.0100 mg/L 0.200 -0.00619 107 80-120 Silver 0.227 0.0100 mg/L 0.200 -0.000629 113 80-120 Vanadium 0.211 0.0100 mg/L 0.200 0.00124 105 80-120 Zinc 0.216 0.0100 mg/L 0.200 0.00578 105 80-120 Batch 9D16006 - EPA 3005A Blank (9D16006-BLK3) Prepared: 04/16/2019 08:25 Analyzed: 04/17/2019 10:26 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 7.60 U 10.0 ug/L Barium 1.10 U 10.0 ug/L Beryllium 0.160 U 1.00 ug/L Cadmium 0.360 U 1.00 ug/L Chromium 1.40 U 10.0 ug/L Cobalt 1.40 U 10.0 ug/L Copper 1.60 U 10.0 ug/L Lead 3.10 U 10.0 ug/L FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 14 Of 24 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 9D16006 - EPA 3005A - Continued Blank (9D36006-BLK3) Continued Prepared: 04/16/2019 08:25 Analyzed: 04/17/2019 10:26 Spike Source %REC RPD Analvte Result Flaq Q Units Level Result %REC Limits RPD Limit Notes Nickel 2.20 U 10.0 ug/L LCS (91316006-BSI) Prepared: 04/16/2019 08:25 Analyzed: 04/17/2019 10:32 Spike Source %REC RPD Analvte Result Flaq PQL Units Level Result %REC Limits RPD Limit Notes Arsenic 189 10.0 ug/L 200 95 80-120 Barium 186 10.0 ug/L 200 93 80-120 Beryllium 19.8 1.00 ug/L 20.0 99 80-120 Cadmium 18.9 1.00 ug/L 20.0 94 80-120 Chromium 189 10.0 ug/L 200 95 80-120 Cobalt 192 10.0 ug/L 200 96 80-120 Copper 191 10.0 ug/L 200 96 80-120 Lead 195 10.0 ug/L 200 98 80-120 Nickel 206 10.0 ug/L 200 103 80-120 Matrix Spike (91316006-MS1) Prepared: 04/16/2019 08:25 Analyzed: 04/17/2019 10:34 Source: CCOSSIS-05 Spike Source %REC RPD Analvte Result Flaq PQL Units Level Result %REC Limits RPD Limit Notes Arsenic 135 10.0 ug/L 200 7.60 U 67 75-125 QM-07 Barium 209 10.0 ug/L 200 44.0 82 75-125 Beryllium 17.9 1.00 ug/L 20.0 0.160 U 89 75-125 Cadmium 16.8 1.00 ug/L 20.0 0.360 U 84 75-125 Chromium 170 10.0 ug/L 200 1.40 U 85 75-125 Cobalt 174 10.0 ug/L 200 1.40 U 87 75-125 Copper 171 10.0 ug/L 200 1.60 U 86 75-125 Lead 166 10.0 ug/L 200 3.10 U 83 75-125 Nickel 169 10.0 ug/L 200 2.20 U 84 75-125 Matrix Spike Dup (91316006-MSDI) Prepared: 04/16/2019 08:25 Analyzed: 04/17/2019 10:37 Source: CCOSSIS-05 Spike Source %REC RPD Analvte Result Flaq PQL Units Level Result %REC Limits RPD Limit Notes Arsenic 116 10.0 ug/L 200 7.60 U 58 75-125 15 20 QM-07 Barium 199 10.0 ug/L 200 44.0 77 75-125 5 20 Beryllium 15.5 1.00 ug/L 20.0 0.160 U 77 75-125 14 20 Cadmium 15.0 1.00 ug/L 20.0 0.360 U 75 75-125 11 20 Chromium 151 10.0 ug/L 200 1.40 U 75 75-125 12 20 Cobalt 155 10.0 ug/L 200 1.40 U 77 75-125 12 20 Copper 150 10.0 ug/L 200 1.60 U 75 75-125 13 20 Lead 149 10.0 ug/L 200 3.10 U 75 75-125 11 20 Nickel 157 10.0 ug/L 200 2.20 U 78 75-125 8 20 Post Spike (91316006-PSI) Prepared: 04/16/2019 08:25 Analyzed: 04/17/2019 10:39 Source: CCOSSIS-05 Spike Source %REC RPD Analvte Result Flaq PQL Units Level Result %REC Limits RPD Limit Notes Arsenic 0.153 0.0100 mg/L 0.200 -0.0427 76 80-120 QM-08 Barium 0.222 0.0100 mg/L 0.200 0.0440 89 80-120 Beryllium 0.0193 0.00100 mg/L 0.0200 5.48E-6 96 80-120 Cadmium 0.0182 0.00100 mg/L 0.0200 -4.54E-5 91 80-120 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 15 of 24 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 9D16006 - EPA 3005A - Continued Post Spike (9D36006-PS3) Continued Prepared: 04/16/2019 08:25 Analyzed: 04/17/2019 10:39 Source: CCO5815-05 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chromium 0.185 0.0100 mg/L 0.200 9.89E-5 92 80-120 Cobalt 0.188 0.0100 mg/L 0.200 0.000872 94 80-120 Copper 0.183 0.0100 mg/L 0.200 -1.69E-5 92 80-120 Lead 0.185 0.0100 mg/L 0.200 0.000737 92 80-120 Nickel 0.183 0.0100 mg/L 0.200 0.00166 91 80-120 Batch 9D18011 - EPA 3005A Blank (9D18011-BLK1) Prepared: 04/18/2019 08:14 Analyzed: 04/22/2019 10:42 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 0.370 U 1.00 ug/L Thallium 0.110 U 1.00 ug/L LCS (9D38011-BS1) Prepared: 04/18/2019 08:14 Analyzed: 04/22/2019 10:51 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 20.1 1.00 ug/L 20.0 101 80-120 Thallium 19.8 1.00 ug/L 20.0 99 80-120 Matrix Spike (9D18031-MS3) Prepared: 04/18/2019 08:14 Analyzed: 04/22/2019 10:56 Source: CCO5103-10 Spike Source %REC RPD Analvte Result Flaq Q Units Level Result %REC Limits RPD Limit Notes Antimony 41.5 2.00 ug/L 40.0 0.902 101 75-125 Thallium 39.2 2.00 ug/L 40.0 0.220 U 98 75-125 Matrix Spike Dup (9D18011-MSDI) Prepared: 04/18/2019 08:14 Analyzed: 04/22/2019 11:00 Source: CCO5103-10 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 42.0 2.00 ug/L 40.0 0.902 103 75-125 1 20 Thallium 39.3 2.00 ug/L 40.0 0.220 U 98 75-125 0.1 20 Post Spike (9D18011-PSI) Prepared: 04/18/2019 08:14 Analyzed: 04/22/2019 11:05 Source: CCO5103-10 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 21.2 1.00 ug/L 20.0 0.451 104 75-125 Thallium 20.3 1.00 ug/L 20.0 0.0178 101 75-125 Batch 9D20013 - EPA 3005A Blank (9D20013-BLK3) Prepared: 04/20/2019 13:50 Analyzed: 04/23/2019 12:09 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 7.60 U 10.0 ug/L Barium 1.10 U 10.0 ug/L Beryllium 0.160 U 1.00 ug/L Cadmium 0.360 U 1.00 ug/L Chromium 1.40 U 10.0 ug/L FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 16 Of 24 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 9D20013 - EPA 3005A - Continued Blank (9D20013-BLK3) Continued Prepared: 04/20/2019 13:50 Analyzed: 04/23/2019 12:09 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Cobalt 1.40 U 10.0 ug/L Copper 1.60 U 10.0 ug/L Lead 3.10 U 10.0 ug/L Nickel 2.20 U 10.0 ug/L Selenium 6.20 U 10.0 ug/L Silver 1.90 U 10.0 ug/L Vanadium 1.40 U 10.0 ug/L Zinc 4.40 U 10.0 ug/L LCS (9D20013-BSI) Prepared: 04/20/2019 13:50 Analyzed: 04/23/2019 12:14 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 234 10.0 ug/L 200 117 80-120 Barium 222 10.0 ug/L 200 111 80-120 Beryllium 23.2 1.00 ug/L 20.0 116 80-120 Cadmium 22.5 1.00 ug/L 20.0 112 80-120 Chromium 225 10.0 ug/L 200 112 80-120 Cobalt 232 10.0 ug/L 200 116 80-120 Copper 220 10.0 ug/L 200 110 80-120 Lead 224 10.0 ug/L 200 112 80-120 Nickel 224 10.0 ug/L 200 112 80-120 Selenium 218 10.0 ug/L 200 109 80-120 Silver 226 10.0 ug/L 200 113 80-120 Vanadium 221 10.0 ug/L 200 110 80-120 Zinc 231 10.0 ug/L 200 115 80-120 Matrix Spike (9D20013-MS3) Prepared: 04/20/2019 13:50 Analyzed: 04/23/2019 12:17 Source: CCO5219-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 226 10.0 ug/L 200 7.60 U 113 75-125 Barium 249 10.0 ug/L 200 40.6 104 75-125 Beryllium 22.1 1.00 ug/L 20.0 0.160 U 110 75-125 Cadmium 21.7 1.00 ug/L 20.0 0.360 U 108 75-125 Chromium 220 10.0 ug/L 200 5.96 107 75-125 Cobalt 225 10.0 ug/L 200 4.75 110 75-125 Copper 217 10.0 ug/L 200 7.27 105 75-125 Lead 216 10.0 ug/L 200 5.24 105 75-125 Nickel 217 10.0 ug/L 200 8.04 104 75-125 Selenium 217 10.0 ug/L 200 6.20 U 109 75-125 Silver 213 10.0 ug/L 200 1.90 U 106 75-125 Vanadium 234 10.0 ug/L 200 20.0 107 75-125 Zinc 224 10.0 ug/L 200 9.80 107 75-125 Matrix Spike Dup (91320013-MS131) Prepared: 04/20/2019 13:50 Analyzed: 04/23/2019 12:55 Source: CCO5219-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 227 10.0 ug/L 200 7.60 U 114 75-125 0.8 20 Barium 268 10.0 ug/L 200 40.6 114 75-125 7 20 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 17 Of 24 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 9D20013 - EPA 3005A - Continued Matrix Spike Dup (9D20013-MSDI) Continued Prepared: 04/20/2019 13:50 Analyzed: 04/23/2019 12:55 Source: CCO5219-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Beryllium 21.9 1.00 ug/L 20.0 0.160 U 109 75-125 0.8 20 Cadmium 22.3 1.00 ug/L 20.0 0.360 U 112 75-125 3 20 Chromium 222 10.0 ug/L 200 5.96 108 75-125 1 20 Cobalt 232 10.0 ug/L 200 4.75 114 75-125 3 20 Copper 220 10.0 ug/L 200 7.27 107 75-125 2 20 Lead 222 10.0 ug/L 200 5.24 109 75-125 3 20 Nickel 235 10.0 ug/L 200 8.04 114 75-125 8 20 Selenium 225 10.0 ug/L 200 6.20 U 112 75-125 3 20 Silver 211 10.0 ug/L 200 1.90 U 105 75-125 0.9 20 Vanadium 234 10.0 ug/L 200 20.0 107 75-125 0.2 20 Zinc 242 10.0 ug/L 200 9.80 116 75-125 8 20 Post Spike (9D20013-PS1) Prepared: 04/20/2019 13:50 Analyzed: 04/23/2019 12:57 Source: CCO5219-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 0.228 0.0100 mg/L 0.200 0.00230 113 80-120 Barium 0.254 0.0100 mg/L 0.200 0.0406 107 80-120 Beryllium 0.0223 0.00100 mg/L 0.0200 -0.000634 111 80-120 Cadmium 0.0224 0.00100 mg/L 0.0200 0.000128 111 80-120 Chromium 0.224 0.0100 mg/L 0.200 0.00596 109 80-120 Cobalt 0.232 0.0100 mg/L 0.200 0.00475 113 80-120 Copper 0.223 0.0100 mg/L 0.200 0.00727 108 80-120 Lead 0.220 0.0100 mg/L 0.200 0.00524 107 80-120 Nickel 0.224 0.0100 mg/L 0.200 0.00804 108 80-120 Selenium 0.222 0.0100 mg/L 0.200 -0.00993 111 80-120 Silver 0.232 0.0100 mg/L 0.200 -0.000572 116 80-120 Vanadium 0.237 0.0100 mg/L 0.200 0.0200 109 80-120 Zinc 0.243 0.0100 mg/L 0.200 0.00980 117 80-120 Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Batch 9D12012 - EPA 5030B MS Blank (9D12022-BLK1) Prepared: 04/12/2019 00:00 Analyzed: 04/12/2019 12:08 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 1.2 U 2.0 ug/L Toluene-& 5.1 ug/L 5.00 102 75-125 LCS (9D12022-BSI) Prepared: 04/12/2019 00:00 Analyzed: 04/12/2019 11:02 Spike Source %REC RPD Analvte Result Flao POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 26 2.0 ug/L 25.0 103 80-133 Toluene-d8 5.4 ug/L 5.00 108 75-125 LCS Dup (9D12022-BSD1) Prepared: 04/12/2019 00:00 Analyzed: 04/12/2019 11:34 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 18 Of 24 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Batch 9D12022 - EPA 5030E MS - Continued LCS Dup (9D32022-BSD3) Continued Prepared: 04/12/2019 00:00 Analyzed: 04/12/2019 11:34 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 27 2.0 ug/L 25.0 108 80-133 5 19 QM-10 Toluene-d8 5.4 U91L 5.00 107 75-125 QM-10 Batch 9D27035 -EPA 5030E MS Blank (9D37035-BLK1) Prepared: 04/17/2019 13:38 Analyzed: 04/17/2019 23:05 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 1.2 U 2.0 ug/L Toluene-d8 5.3 u91L 5.00 106 75-125 LCS (9D17035-BS1) Prepared: 04/17/2019 13:38 Analyzed: 04/17/2019 21:53 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 25 2.0 ug/L 25.0 102 80-133 Toluene-d8 6.5 u91L 5.00 129 75-125 QS-03 LCS Dup (9D17035-BSD1) Prepared: 04/17/2019 13:38 Analyzed: 04/17/2019 22:29 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 26 2.0 ug/L 25.0 106 80-133 4 19 QM-10 Toluene-d8 5.4 u91L 5.00 109 75-125 QM-10 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 19 Of 24 (� �Eo www.encolabs.com FLAGS/NOTES AND DEFINITIONS B The analyte was detected in the associated method blank. D The sample was analyzed at dilution. J The reported value is between the laboratory method detection limit (MDL) and the laboratory method reporting limit (MRL), adjusted for actual sample preparation data and moisture content, where applicable. U The analyte was analyzed for but not detected to the level shown, adjusted for actual sample preparation data and moisture content, where applicable. E The concentration indicated for this analyte is an estimated value above the calibration range of the instrument. This value is considered an estimate. MRL Method Reporting Limit. The MRL is roughly equivalent to the practical quantitation limit (PQL) and is based on the low point of the calibration curve, when applicable, sample preparation factor, dilution factor, and, in the case of soil samples, moisture content. PQL PQL: Practical Quantitation Limit. The PQL presented is the laboratory MRL. N The analysis indicates the presence of an analyte for which there is presumptive evidence (85% or greater confidence) to make a "tentative identification". P Greater than 25% concentration difference was observed between the primary and secondary GC column. The lower concentration is reported. [CALC] Calculated analyte - MDL/MRL reported to the highest reporting limit of the component analyses. QM-07 The spike recovery was outside acceptance limits for the MS and/or MSD. The batch was accepted based on acceptable LCS recovery. QM-08 Post -digestion spike did not meet method requirements due to confirmed matrix effects (dilution test). QM-10 LCS/LCSD were analyzed in place of MS/MSD. QS-03 Surrogate recovery outside acceptance limits QV-01 The associated continuing calibration verification standard exhibited high bias; since the result is ND, there is no impact. FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 20 of 24 gng m m r� C � v m v a Al � W r. r a S O 3 O 3 O 3 � O A m � m a m 3 n m � m Z NO O O mm m C a A7 a CD w V a m 3 rn n uz n a o o2i ti a iJil O O j d T 2 O n n IL o � A c `- v A m a cn + a W n m Off. m G5= as � n = �2 �3 _ • m aL o 3 N C cD j w En r m ti r m G) m ,+ln;k4 [� pp v % cn - T �] 0 c A 4 I 8260D Appendix 1, 8260D - n Exlended.82WD SIM ID 8260D Appendix 1,8260D SIM ID c x Ag,As,Ba,9e,Cd,Ca,Cr,Cu,N1,Pb,Sb,Se, - 2 Se li.V 7n nm a n w mu Ag,As,9a,8e,Cd,Co,Cr,Cu,Ni,Pb,3b,3e, T1 V 2n m N � � a � n N �G V S ryp c x Hg m m �• r � z w ^] (, I - c m m p c �' 7 q N C 1 `�•+ I Q 0' n D N Page 21 of 24 Sample Preservation Verification'SNkll C� I ENCo Cary CCJ - moo Work Order: CC05274 Project: White Street LF-Phase I,II GW/SW Client: Golder Associates, Inc. {GO007) Project #: 1668421,105 Logged In: 10-Apr-19 14:11 Logged By: John C King Preservation Check Performed By: ❑atelTime: -to, cq C M5274-01 Cant Type Pres (PH) I pH Checked ! pH Adjusted DaterrIme Reagent Used/Comments Requirement I Jn Contras Adjusted A 25omLP+HNO3 <2 / N I NA Y I 1 NA Reagent Name ID 1 2 pH Strip I D: CFX:�34 l Rea ent Name ID 3 4 Rea ent Name I ❑ 5 6 C: \ELM NT1P rint4ko_PreservationC heck. rpt Page 22 of 24 e E 0, u f .0 tv D 0 V C a# 3 Q v ro n. U c co .=:e EE E ,v d cd C. c V yy'aII 15 U I O T rc ¢ v d in 0 0 a m m C O m m m N a v M W ] ik o Q 1 U O m V m m �Ncc m 0 m �ro n m n m Page 23 of 2 u Sample Preservation Verification ENCO Cary Work Order: CC06033 Project: White Street LF-Phase 1,11 GWISW Client: Golder Associates, Inc. (00007) Project#: 1668421.105 Logged In: 12-Apr-19 13:38 Logged By: Rachel Ann Yonish 2 Preservation Check Performed By: 7P _ Date/Time: Ld 12 /� h v f 00 vn CC06033-01 Cont Type Pres (pH) RequirementControl hecked 1 61n PH Adjusted Date me Adjusted Reagent Used/Comments A 250mLP+HNO3 <2 N / NA Y / N / NA Reagent Name ID 1 2 pH Strip I D: PH Strips CSJ0741 C:Ielmnt\Prii _.___, ,,,,, I aLIV� I%,I ICL^A pt Reagent Name ID 3 4 Rea ent Name ID 5 6 Page 24 of 24 WORK ORDER Printed: 4/24/2019 10:31:28AM CC05274 ENCO Cary Sample Receipt Conditions Client: Golder Associates, Inc. (G0007) Lab Project Mgr: Stephanie Franz Project: White Street LF-Phase I,II GW/SW Project Number: 1668421.105 PO #: Report To: Invoice To: Golder Associates, Inc. (G0007) City of Greensboro (CI034) Dusty Reedy Richard Lovett 5B Oak Branch Drive 401 Patton Ave Greensboro, NC 27407 Greensboro, NC 27406 Phone: (336) 852-4903 Phone :(336) 373-4188 Fax: (336) 852-4904 Fax: Received By: John C King Date Received: 10-Apr-19 08:30 Logged In By: John C King Date Logged In: 10-Apr-19 14:11 Work Order Comments: C-1886 received at 1.4°C Containers Intact Y Containers Properly Preserved Y Proper Containers Received Y All Samples in PreLog Received Y COC/Labels Agree Y Custody Seals Intact Y Volatile Containers Preserved Y Volatile Containers Headspace Free Y Aqueous Samples Checked for Residual Cl N Received On Ice Y Temperature Corrected Y Page 1 of 1 WORK ORDER Printed: 4/24/2019 10:31:16AM CC06033 ENCO Cary Sample Receipt Conditions Client: Golder Associates, Inc. (G0007) Lab Project Mgr: Stephanie Franz Project: White Street LF-Phase I,II GW/SW Project Number: 1668421.105 PO #: Report To: Invoice To: Golder Associates, Inc. (G0007) City of Greensboro (CI034) Dusty Reedy Richard Lovett 5B Oak Branch Drive 401 Patton Ave Greensboro, NC 27407 Greensboro, NC 27406 Phone: (336) 852-4903 Phone :(336) 373-4188 Fax: (336) 852-4904 Fax: Received By: Rachel Ann Yonish Date Received: 12-Apr-19 10:30 Logged In By: Rachel Ann Yonish Date Logged In: 12-Apr-19 13:38 Work Order Comments: C-1886 received at 1.0°C Containers Intact Y Containers Properly Preserved Y Proper Containers Received Y All Samples in PreLog Received Y COC/Labels Agree Y Custody Seals Intact Y Volatile Containers Preserved Y Volatile Containers Headspace Free Y Aqueous Samples Checked for Residual Cl N Received On Ice Y Temperature Corrected Y Page 1 of 1 GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 1 of 3 GOL DER Project Name: White Street Landfill — Phase 1,11 GW/SW (MW-13. SW-5) Project Reference Number: 1668421.105 Sampling Event Date: April 9 - 11, 2019 Review Date: May 2, 2019 Initials DC Report #: CC05274 CC06033 Signature: Date: QA/QC Sign Off: Date: Person(s) performing the review are to initial each item on this form as acknowledgement of data acceptance, or as acknowledgement of a review issue. In the case of the latter, a brief explanation should follow the applicable item. Golder Associates Inc. has reviewed the laboratory certificates of analysis, chain -of -custody form, and laboratory provided sample group quality assurance and quality control data for the above referenced sample group to identify potential bias or inaccuracy, in general accordance with the following United States Environmental Protection Agency documents: Region I II Modifications to Functional Guidelines for Organic Data Review Multi -Media, Multi -Concentration, September 1994; Region III Modifications to the Laboratory Data Validation Functional Guidelines for Evaluating Inorganic Analyses, April 1993; and Laboratory Data Validation Functional Guidelines for Evaluating Inorganic Analyses, July 1998. COMPLIANCE ANALYTE LIST(S) (check all that apply) NC Closed Facility/C & D List NC Appendix I (SW-5) NC Appendix I + Detects X NC Appendix II + lead and tetrahydrofuran (MW-13) NC Subtitle D Leachate List Other: 1.0 CHAIN OF CUSTODY (COC) REVIEW DC COC was properly signed by all parties. DC Correct project name and number are on the form. DC Sample receipt condition at laboratory was acceptable. DC Each sample and blank submitted for analysis appears in the report. GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL p L E R LABORATORY DATA REVIEW Page 2 of 3 2.0 SAMPLE HOLDING TIMES DC Holding times for extraction and/or analysis were met for each analytical Method (see below for reference). Review Criteria Method Anal es Holding Time SW-846 Method 8260 and 8011 VOCs 14 days SW-846 Methods 8270, 8080, 8081, 8082, and 8151 SVOCs, PCBs, pesticides and herbicides 7 days for extraction, 40 days from extraction for analysis SW-846 Methods 6000 and 7000 Series Metals except mercury 6 months (no temperature requirements) SW-846 Method 7470 Mercury 28 days SW-846 Method 376.1 Sulfide 7 days SW-846 Method 9010 Cyanide 14 days EPA Method 300 Nitrate/Sulfate 48 hours/28 days EPA Method 405.1 BOD 48 hours EPA Method 410.4 COD 28 days EPA Method 365.4 Phosphorous 28 days 3.0 LABORATORY QUALITY CONTROL REVIEW DC Laboratory analyzed at least one internal blank for each method, where applicable. DC Laboratory blank is interference -free. DC Surrogate recoveries are provided for each analytical method, where applicable. DC Surrogate recoveries for each method are within the acceptable limits (i.e., at least 50% of the surrogates were within range). DC MS/MSD/LCS data results are provided for each analytical method. DC MS/MSD/LCS recoveries for each method are within the acceptable limits (i.e., at least 1 of the 3 were within range). 4.0 DC ➢ The spike recoveries for Benzene and Trichloroethene were outside of control limits for the 8260D MS and/or MSD samples. The QC batch was approved based on acceptable LCS recovery of this analyte. LCS/LCSD were analyzed in place of MS/MSD for the 8260D SIM analysis for 1,4-Dioxane. ➢ The spike recovery of Arsenic was outside of control limits for the 6010D MS, MSD and Post Spike samples. The QC batch was approved based on acceptable LCS recovery of this element. ➢ The 8260D SIM ANALYTE LISTS/METHODS The proper number of constituents are present for each analyte list as identified above (including detects where applicable). DC Proper EPA SW-846 analytical methods were used for analysis. GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW G 0 L D E R Page 3 of 3 4 5.0 DATA REPORTING DC All analytical reporting associated with the event was performed by the contracted lab DC Trip, field and/or equipment, and laboratory blank results have all been reported. All detects for blanks are listed below by constituent. All laboratory method blanks, if any, have been `flagged' with a 'B' where detected in other samples as appropriate and a laboratory narrative was provided. If the sample was flagged by the laboratory and is not within 5X of the concentration in the blank (or 1 OX for commonly detected laboratory contaminants -acetone, methylene chloride and phthalates), list below with explanation if flags should be removed. If flags need to be added for samples, also list below. DC It is clear from the laboratory report that samples have or have not been diluted during analysis, and if the samples have been diluted, the result is reported as a multiple of the dilution (e.g., a sample diluted 1 Ox resulting in an analytical detection of 1 0 should be reported as 10). Those that have been diluted are listed below with the dilution factor. ➢ Thallium (2x) in MW-13 and SW-5 ➢ Antimony (2x) in MW-13 and SW-5 DC The report provides the reporting limit for each constituent. DC The results were reported at or below their proper reporting limits (e.g., PQLs). Those that are not reported correctly are listed below (by constituent) with the proper reporting limit listed beside them. State if the reporting limit error is due to dilutions. MG No inorganic or organic constituents were reported above their respective NC 2L Drinking Water Standards or Groundwater Protection Standards (GPS) in wells or field/equipment/trip blanks or above applicable Surface Water Standards for surface water points. ➢ Copper (Chronic SW Standard = 2.7 ug/L; Acute SW Standard = 3.6 up/L) SW-5 @ 4.18 ug/L (J) ➢ Vanadium (NC (ail %MAC = 0.3 ua/L) • MW-13 @ 5.22 ug/L (J) DC No quantifiable inorganic or organic constituents were detected in a well or surface water point at concentrations outside of their historical range (more than 5X previous concentrations or first-time detections). DC Other report issues/Communications with laboratory/etc.: ENCO Laboratones Accurate. Timely. Responsive. Innovative. 102-A Woodwinds Industrial Court Cary NC, 27511 Phone: 919.467.3090 FAX: 919.467.3515 Monday, April 29, 2019 Golder Associates, Inc. (GO007) Attn: Dusty Reedy 5B Oak Branch Drive Greensboro, NC 27407 RE: Laboratory Results for Project Number: 1668421.105, Project Name/Desc: White Street LF-Phase I,II,III SW ENCO Workorder(s): CC05275,CC06163 Dear Dusty Reedy, Enclosed is a copy of your laboratory report for test samples received by our laboratory between Monday, April 15, 2019 and Wednesday, April 17, 2019. Unless otherwise noted in an attached project narrative, all samples were received in acceptable condition and processed in accordance with the referenced methods/procedures. Results for these procedures apply only to the samples as submitted. The analytical results contained in this report are in compliance with NELAC standards, except as noted in the project narrative if applicable. This report shall not be reproduced except in full, without the written approval of the Laboratory. This report contains only those analyses performed by Environmental Conservation Laboratories. Unless otherwise noted, all analyses were performed at ENCO Cary. Data from outside organizations will be reported under separate cover. If you have any questions or require further information, please do not hesitate to contact me. Sincerely, Stephanie Franz Project Manager Enclosure(s) FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 1 of 2H PROJECT NARRATIVE Date: 29 April 2019 Client: Golder Associates, Inc. (G0007) Project: White Street LF-Phase 1,11,111 SW Lab ID: CC05275, CC06163 Overview (� �Eo www.encolabs.com Environmental Conservation Laboratories, Inc. (ENCO) analyzed all submitted samples in accordance with the methods referenced in the laboratory report. Any particular difficulties encountered during sample handling by ENCO are discussed in the QC Remarks section below. Quality Control Samples The spike recovery of Trichloroethene was outside of control limits for the 8260D MS and MSD samples. The QC batches were approved based on acceptable LCS recovery of this analyte. LCS/LCSD were analyzed in place of the MS/MSD for the 8260D SIM analysis of 1.4-Dioxane. The spike recoveries of Cadmium, Cobalt, and Selenium were outside of control limits for the 601 OD MS, MSD, and/or Post Spike samples. The QC batch was approved based on acceptable LCS recovery of these elements. Quality Control Remarks No Comments Other Comments Methylene chloride, a common laboratory contaminant, was detected in the Trip Blank; however, this analyte was not detected in the associated Method Blank. All samples received under this work order arrived in acceptable conditions. The samples were not checked for residual chlorine, as it is not required. The analytical data presented in this report are consistent with the methods as referenced in the analytical report. Any exceptions or deviations are noted in the QC remarks section of this narrative or in the Flags/Notes and Definitions section of the report. Released By: Environmental Conservation Laboratories, Inc. Stephanie Franz Project Manager FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 2 of 28 (� �Eo www.encolabs.com SAMPLE SUMMARY/LABORATORY CHRONICLE Client ID: 4303/12-SW3 Lab ID: CCO5275-01 Sampled: 04/12/19 09:03 Received: 04/15/19 10:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 10/09/19 04/22/19 11:11 04/24/19 16:04 EPA 6020B EPA 3005A 10/09/19 04/18/19 16:07 04/19/19 13:18 EPA 8260D EPA 503013_MS 04/26/19 04/19/19 11:31 04/20/19 01:13 EPA 8260D EPA 503013_MS 04/26/19 04/19/19 13:40 04/19/19 17:19 Client ID: 4303/12-SW2 Lab ID: CCO5275-02 Sampled: 04/12/19 08:43 Received: 04/15/19 10:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 10/09/19 04/22/19 11:11 04/24/19 16:06 EPA 6020B EPA 3005A 10/09/19 04/18/19 16:07 04/19/19 13:23 EPA 8260D EPA 5030B_MIS 04/26/19 04/19/19 11:31 04/20/19 01:45 Client ID: 4303/12-SW2 Lab ID: CCO5275-02RE1 Sampled: 04/12/19 08:43 Received: 04/15/19 10:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260D EPA 5030B_MS 04/26/19 04/22/19 00:00 04/22/19 11:54 Client ID: 4303/12-SW4 Lab ID: CCO5275-03 Sampled: 04/12/19 09:54 Received: 04/15/19 10:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 10/09/19 04/22/19 11:11 04/24/19 16:09 EPA 6020B EPA 3005A 10/09/19 04/18/19 16:07 04/19/19 13:27 EPA 8260D EPA 503013_MS 04/26/19 04/19/19 11:31 04/20/19 02:16 EPA 8260D EPA 5030B_MS 04/26/19 04/19/19 13:40 04/19/19 18:33 Client ID: 4303/12-Trip Blank Lab ID: CCO5275-04 Sampled: 04/12/19 08:43 Received: 04/15/19 10:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260D EPA 5030B_MS 04/26/19 04/19/19 11:31 04/20/19 02:48 EPA 8260D EPA 503013_MS 04/26/19 04/19/19 13:40 04/19/19 19:10 Client ID: 4303/12-SW3 Lab ID: CC06163-01 Sampled: 04/15/19 15:00 Received: 04/17/19 11:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 10/12/19 04/24/19 11:37 04/26/19 13:59 EPA 6020E EPA 3005A 10/12/19 04/24/19 11:49 04/26/19 16:27 EPA 8260D EPA 503013_MS 04/29/19 04/22/19 00:00 04/22/19 20:19 EPA 8260D EPA 503013_MS 04/29/19 04/23/19 14:22 04/23/19 23:57 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 3 Of 28 (� �Eo www.encolabs.com SAMPLE DETECTION SUMMARY Client ID: 4303/12-SW3 Lab ID: CCO5275-01 Anala Results Flag MDL POLL Units Method Notes Barium - Total 60.9 1.10 10.0 ug/L EPA 6010D Chromium - Total 1.93 1 1.40 10.0 ug/L EPA 6010D Copper - Total 3.44 1 1.60 10.0 ug/L EPA 6010D Lead - Total 3.91 1 3.10 10.0 ug/L EPA 6010D Vanadium - Total 1.54 1 1.40 10.0 ug/L EPA 6010D Zinc - Total 11.6 4.40 10.0 ug/L EPA 6010D Client ID: 4303/12-SW2 Lab ID: CCO5275-02 Anala Results Flag MDL POLL Units Method Notes Barium - Total 64.6 1.10 10.0 ug/L EPA 6010D Chromium - Total 1.77 1 1.40 10.0 ug/L EPA 6010D Cobalt - Total 1.40 1 1.40 10.0 ug/L EPA 6010D Copper - Total 5.44 1 1.60 10.0 ug/L EPA 6010D Vanadium - Total 4.16 1 1.40 10.0 ug/L EPA 6010D Zinc - Total 16.2 4.40 10.0 ua/L EPA 6010D I Client ID: 4303/12-SW2 Lab ID: CC05275-02RE3 Anala Results Flag MDL POLL Units Method Notes 1,4-Dioxane 1.6 1 1.2 2.0 ug/L EPA 8260D Client ID: 4303/12-SW4 Lab ID: CCO5275-03 Anala Results Flag MDL POLL Units Method Notes Barium - Total 56.8 1.10 10.0 ug/L EPA 6010D Copper - Total 3.66 1 1.60 10.0 ug/L EPA 6010D Vanadium - Total 1.78 1 1.40 10.0 ug/L EPA 6010D Zinc - Total 12.1 4.40 10.0 ug/L EPA 6010D Client ID: 4103/12-Trip Blank Lab ID: CC05275-04 Anala Results Flag MDL POLL Units Method Notes Methylene chloride 0.73 1 0.23 1.0 ug/L EPA 8260D Client ID: 4303/12-SW3 Lab ID: CC06163-01 Anala Results Flag MDL POLL Units Method Notes Barium - Total 40.0 1.10 10.0 ug/L EPA 6010D Copper - Total 5.11 1 1.60 10.0 ug/L EPA 6010D Vanadium - Total 2.39 1 1.40 10.0 ug/L EPA 6010D Zinc - Total 13.9 4.40 10.0 ug/L EPA 6010D FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 4 Of 28 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4103/12-SW1 Lab Sample ID:CC05275-01 Received: 04/15/19 10:00 Matrix: Surface Water Sampled:04/12/19 09:03 Work Order: CCO5275 Project: White Street LF-Phase I,II,III SW Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flan Units DF MDL Q Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]^ 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 01:13 MRK 1,1,1-Trichloroethane [71-55-6]^ 0.12 U ug/L 1 0.12 1.0 9D19024 EPA 8260D 04/20/19 01:13 MRK 1,1,2,2-Tetrachloroethane [79-34-5]^ 0.28 U ug/L 1 0.28 1.0 9D19024 EPA 8260D 04/20/19 01:13 MRK 1,1,2-Trichloroethane [79-00-5]^ 0.14 U ug/L 1 0.14 1.0 9D19024 EPA 8260D 04/20/19 01:13 MRK 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 9D19024 EPA 8260D 04/20/19 01:13 MRK 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 9D19024 EPA 8260D 04/20/19 01:13 MRK 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 9D19024 EPA 8260D 04/20/19 01:13 MRK 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 9D19024 EPA 8260D 04/20/19 01:13 MRK 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 9D19024 EPA 8260D 04/20/19 01:13 MRK 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 9D19024 EPA 8260D 04/20/19 01:13 MRK 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 9D19024 EPA 8260D 04/20/19 01:13 MRK 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 9D19024 EPA 8260D 04/20/19 01:13 MRK 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 9D19024 EPA 8260D 04/20/19 01:13 MRK 2-Butanone [78-93-3]^ 1.3 U ug/L 1 1.3 5.0 9D19024 EPA 8260D 04/20/19 01:13 MRK 2-Hexanone [591-78-6]^ 0.88 U ug/L 1 0.88 5.0 9D19024 EPA 8260D 04/20/19 01:13 MRK 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 9D19024 EPA 8260D 04/20/19 01:13 MRK Acetone [67-64-1]^ 10 U ug/L 1 10 20 9D19024 EPA 8260D 04/20/19 01:13 MRK Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 9D19024 EPA 8260D 04/20/19 01:13 MRK Benzene[71-43-2]^ 0.15 U ug/L 1 0.15 1.0 9D19024 EPA 8260D 04/20/19 01:13 MRK Bromochloromethane [74-97-5]^ 0.48 U ug/L 1 0.48 1.0 9D19024 EPA 8260D 04/20/19 01:13 MRK Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 01:13 MRK Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 9D19024 EPA 8260D 04/20/19 01:13 MRK Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 9D19024 EPA 8260D 04/20/19 01:13 MRK Carbon disulfide [75-15-0]^ 1.5 U ug/L 1 1.5 5.0 9D19024 EPA 8260D 04/20/19 01:13 MRK Carbon tetrachloride [56-23-5]^ 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 01:13 MRK Chlorobenzene [108-90-7]^ 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 01:13 MRK Chloroethane [75-00-3]^ 0.23 U ug/L 1 0.23 1.0 9D19024 EPA 8260D 04/20/19 01:13 MRK Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 9D19024 EPA 8260D 04/20/19 01:13 MRK Chloromethane [74-87-3]^ 0.13 U ug/L 1 0.13 1.0 9D19024 EPA 8260D 04/20/19 01:13 MRK cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 9D19024 EPA 8260D 04/20/19 01:13 MRK cis-1,3-Dichloropropene [10061-01-5]^ 0.20 U ug/L 1 0.20 1.0 9D19024 EPA 8260D 04/20/19 01:13 MRK Dibromochloromethane [124-48-1]^ 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 01:13 MRK Dibromomethane [74-95-3]^ 0.27 U ug/L 1 0.27 1.0 9D19024 EPA 8260D 04/20/19 01:13 MRK Ethylbenzene [100-41-4]^ 0.13 U ug/L 1 0.13 1.0 9D19024 EPA 8260D 04/20/19 01:13 MRK Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 9D19024 EPA 8260D 04/20/19 01:13 MRK Methylene chloride [75-09-2]^ 0.23 U ug/L 1 0.23 1.0 9D19024 EPA 8260D 04/20/19 01:13 MRK Styrene [100-42-5]^ 0.11 U ug/L 1 0.11 1.0 9D19024 EPA 8260D 04/20/19 01:13 MRK Tetrachloroethene [127-18-4]^ 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 01:13 MRK Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 9D19024 EPA 8260D 04/20/19 01:13 MRK trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 9D19024 EPA 8260D 04/20/19 01:13 MRK trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 9D19024 EPA 8260D 04/20/19 01:13 MRK trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 U ug/L 1 0.70 1.0 9D19024 EPA 8260D 04/20/19 01:13 MRK Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 9D19024 EPA 8260D 04/20/19 01:13 MRK Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 9D19024 EPA 8260D 04/20/19 01:13 MRK Vinyl acetate [108-05-4]^ 0.95 U ug/L 1 0.95 5.0 9D19024 EPA 8260D 04/20/19 01:13 MRK Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 9D19024 EPA 8260D 04/20/19 01:13 MRK Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 9D19024 EPA 8260D 04/20/19 01:13 MRK FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 5 Of 28 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103/12-SW1 Lab Sample ID:CC05275-01 Received: 04/15/19 10:00 Matrix: Surface Water Sampled:04/12/19 09:03 Work Order: CC05275 Project: White Street LF-Phase I,II,III SW Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed Notes 4-Bromofluorobenzene 59 1 50.0 119 % 53-136 9D19024 EPA 8260D 04120119 01:13 MRK Dlbromofluoromethane 47 1 50.0 94 % 67-129 9D19024 EPA 8260D 04120119 01:13 MRK Toluene-& 54 1 50.0 108 % 59-134 9D19024 EPA 8260D 04120119 01:13 MRK Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 9D18039 EPA 6020E 04/19/19 13:18 CM K Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 9D22016 EPA 6010D 04/24/19 16:04 ]DH Barium [7440-39-3]^ 60.9 ug/L 1 1.10 10.0 9D22016 EPA 6010D 04/24/19 16:04 ]DH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 9D22016 EPA 6010D 04/24/19 16:04 ]DH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 9D22016 EPA 6010D 04/24/19 16:04 ]DH Chromium [7440-47-3]^ 1.93 J ug/L 1 1.40 10.0 9D22016 EPA 6010D 04/24/19 16:04 ]DH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 9D22016 EPA 6010D 04/24/19 16:04 ]DH Copper[7440-50-8]^ 3.44 J ug/L 1 1.60 10.0 9D22016 EPA 6010D 04/24/19 16:04 ]DH Lead [7439-92-1]^ 3.91 J ug/L 1 3.10 10.0 9D22016 EPA 6010D 04/24/19 16:04 ]DH Nickel[7440-02-0]^ 2.20 U ug/L 1 2.20 10.0 9D22016 EPA 6010D 04/24/19 16:04 ]DH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 9D22016 EPA 6010D 04/24/19 16:04 ]DH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 9D22016 EPA 6010D 04/24/19 16:04 ]DH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 9D18039 EPA 6020E 04/19/19 13:18 CM K Vanadium [7440-62-2]^ 1.54 J ug/L 1 1.40 10.0 9D22016 EPA 6010D 04/24/19 16:04 ]DH Zinc[7440-66-6]^ 11.6 ug/L 1 4.40 10.0 9D22016 EPA 6010D 04/24/19 16:04 ]DH Volatile Organic Compounds by GCMS SIM Isotope Dilution Analyte rCAS Numberl 1,4-Dioxane [123-91-1] Surrogates Toluene-d8 Results Flag Units DF MDL P L Batch Method Analyzed By Notes 1.2 U ug/L 1 1.2 2.0 9D19047 EPA 8260D 04/19/19 17:19 KKW Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes 4.8 1 5.00 97 % 75-125 9D19047 EPA 8260D 0411911917:19 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 6 Of 28 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4103/12-SW2 Lab Sample ID:CC05275-02 Received: 04/15/19 10:00 Matrix: Surface Water Sampled:04/12/19 08:43 Work Order: CCO5275 Project: White Street LF-Phase I,II,III SW Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flan Units DF MDL Q Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]^ 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 01:45 MRK 1,1,1-Trichloroethane [71-55-6]^ 0.12 U ug/L 1 0.12 1.0 9D19024 EPA 8260D 04/20/19 01:45 MRK 1,1,2,2-Tetrachloroethane [79-34-5]^ 0.28 U ug/L 1 0.28 1.0 9D19024 EPA 8260D 04/20/19 01:45 MRK 1,1,2-Trichloroethane [79-00-5]^ 0.14 U ug/L 1 0.14 1.0 9D19024 EPA 8260D 04/20/19 01:45 MRK 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 9D19024 EPA 8260D 04/20/19 01:45 MRK 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 9D19024 EPA 8260D 04/20/19 01:45 MRK 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 9D19024 EPA 8260D 04/20/19 01:45 MRK 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 9D19024 EPA 8260D 04/20/19 01:45 MRK 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 9D19024 EPA 8260D 04/20/19 01:45 MRK 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 9D19024 EPA 8260D 04/20/19 01:45 MRK 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 9D19024 EPA 8260D 04/20/19 01:45 MRK 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 9D19024 EPA 8260D 04/20/19 01:45 MRK 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 9D19024 EPA 8260D 04/20/19 01:45 MRK 2-Butanone [78-93-3]^ 1.3 U ug/L 1 1.3 5.0 9D19024 EPA 8260D 04/20/19 01:45 MRK 2-Hexanone [591-78-6]^ 0.88 U ug/L 1 0.88 5.0 9D19024 EPA 8260D 04/20/19 01:45 MRK 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 9D19024 EPA 8260D 04/20/19 01:45 MRK Acetone [67-64-1]^ 10 U ug/L 1 10 20 9D19024 EPA 8260D 04/20/19 01:45 MRK Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 9D19024 EPA 8260D 04/20/19 01:45 MRK Benzene[71-43-2]^ 0.15 U ug/L 1 0.15 1.0 9D19024 EPA 8260D 04/20/19 01:45 MRK Bromochloromethane [74-97-5]^ 0.48 U ug/L 1 0.48 1.0 9D19024 EPA 8260D 04/20/19 01:45 MRK Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 01:45 MRK Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 9D19024 EPA 8260D 04/20/19 01:45 MRK Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 9D19024 EPA 8260D 04/20/19 01:45 MRK Carbon disulfide [75-15-0]^ 1.5 U ug/L 1 1.5 5.0 9D19024 EPA 8260D 04/20/19 01:45 MRK Carbon tetrachloride [56-23-5]^ 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 01:45 MRK Chlorobenzene [108-90-7]^ 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 01:45 MRK Chloroethane [75-00-3]^ 0.23 U ug/L 1 0.23 1.0 9D19024 EPA 8260D 04/20/19 01:45 MRK Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 9D19024 EPA 8260D 04/20/19 01:45 MRK Chloromethane [74-87-3]^ 0.13 U ug/L 1 0.13 1.0 9D19024 EPA 8260D 04/20/19 01:45 MRK cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 9D19024 EPA 8260D 04/20/19 01:45 MRK cis-1,3-Dichloropropene [10061-01-5]^ 0.20 U ug/L 1 0.20 1.0 9D19024 EPA 8260D 04/20/19 01:45 MRK Dibromochloromethane [124-48-1]^ 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 01:45 MRK Dibromomethane [74-95-3]^ 0.27 U ug/L 1 0.27 1.0 9D19024 EPA 8260D 04/20/19 01:45 MRK Ethylbenzene [100-41-4]^ 0.13 U ug/L 1 0.13 1.0 9D19024 EPA 8260D 04/20/19 01:45 MRK Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 9D19024 EPA 8260D 04/20/19 01:45 MRK Methylene chloride [75-09-2]^ 0.23 U ug/L 1 0.23 1.0 9D19024 EPA 8260D 04/20/19 01:45 MRK Styrene [100-42-5]^ 0.11 U ug/L 1 0.11 1.0 9D19024 EPA 8260D 04/20/19 01:45 MRK Tetrachloroethene [127-18-4]^ 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 01:45 MRK Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 9D19024 EPA 8260D 04/20/19 01:45 MRK trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 9D19024 EPA 8260D 04/20/19 01:45 MRK trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 9D19024 EPA 8260D 04/20/19 01:45 MRK trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 U ug/L 1 0.70 1.0 9D19024 EPA 8260D 04/20/19 01:45 MRK Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 9D19024 EPA 8260D 04/20/19 01:45 MRK Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 9D19024 EPA 8260D 04/20/19 01:45 MRK Vinyl acetate [108-05-4]^ 0.95 U ug/L 1 0.95 5.0 9D19024 EPA 8260D 04/20/19 01:45 MRK Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 9D19024 EPA 8260D 04/20/19 01:45 MRK Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 9D19024 EPA 8260D 04/20/19 01:45 MRK FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 7 Of 28 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103/12-SW2 Lab Sample ID:CC05275-02 Received: 04/15/19 10:00 Matrix: Surface Water Sampled:04/12/19 08:43 Work Order: CC05275 Project: White Street LF-Phase I,II,III SW Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed Notes 4-Bromofluorobenzene 59 1 50.0 119 % 53-136 9D19024 EPA 8260D 04120119 01:45 MRK Dlbromofluoromethane 44 1 50.0 88 % 67-129 9D19024 EPA 8260D 04120119 01:45 MRK Toluene-& 55 1 50.0 109 % 59-134 9D19024 EPA 8260D 04120119 01:45 MRK Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 9D18039 EPA 6020E 04/19/19 13:23 CM K Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 9D22016 EPA 6010D 04/24/19 16:06 ]DH Barium [7440-39-3]^ 64.6 ug/L 1 1.10 10.0 9D22016 EPA 6010D 04/24/19 16:06 ]DH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 9D22016 EPA 6010D 04/24/19 16:06 ]DH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 9D22016 EPA 6010D 04/24/19 16:06 ]DH Chromium [7440-47-3]^ 1.77 J ug/L 1 1.40 10.0 9D22016 EPA 6010D 04/24/19 16:06 ]DH Cobalt[7440-48-4]^ 1.40 J ug/L 1 1.40 10.0 9D22016 EPA 6010D 04/24/19 16:06 ]DH Copper[7440-50-8]^ 5.44 J ug/L 1 1.60 10.0 9D22016 EPA 6010D 04/24/19 16:06 ]DH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 9D22016 EPA 6010D 04/24/19 16:06 ]DH Nickel[7440-02-0]^ 2.20 U ug/L 1 2.20 10.0 9D22016 EPA 6010D 04/24/19 16:06 ]DH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 9D22016 EPA 6010D 04/24/19 16:06 ]DH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 9D22016 EPA 6010D 04/24/19 16:06 ]DH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 9D18039 EPA 6020E 04/19/19 13:23 CM K Vanadium [7440-62-2]^ 4.16 J ug/L 1 1.40 10.0 9D22016 EPA 6010D 04/24/19 16:06 ]DH Zinc[7440-66-6]^ 16.2 ug/L 1 4.40 10.0 9D22016 EPA 6010D 04/24/19 16:06 ]DH Volatile Organic Compounds by GCMS SIM Isotope Dilution Analyte rCAS Numberl 1,4-Dioxane [123-91-1] Surrogates Toluene-d8 Results Flag Units DF MDL P L Batch Method Analyzed By Notes 1.6 J ug/L 1 1.2 2.0 9D22021 EPA 8260D 04/22/19 11:54 KKW Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes 5.7 1 5.00 113 % 75-125 9D22021 EPA 8260D 0412211911:54 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 8 Of 28 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4103/12-SW4 Lab Sample ID:CC05275-03 Received: 04/15/19 10:00 Matrix: Surface Water Sampled:04/12/19 09:54 Work Order: CCO5275 Project: White Street LF-Phase I,II,III SW Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flan Units DF MDL Q Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]^ 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 02:16 MRK 1,1,1-Trichloroethane [71-55-6]^ 0.12 U ug/L 1 0.12 1.0 9D19024 EPA 8260D 04/20/19 02:16 MRK 1,1,2,2-Tetrachloroethane [79-34-5]^ 0.28 U ug/L 1 0.28 1.0 9D19024 EPA 8260D 04/20/19 02:16 MRK 1,1,2-Trichloroethane [79-00-5]^ 0.14 U ug/L 1 0.14 1.0 9D19024 EPA 8260D 04/20/19 02:16 MRK 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 9D19024 EPA 8260D 04/20/19 02:16 MRK 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 9D19024 EPA 8260D 04/20/19 02:16 MRK 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 9D19024 EPA 8260D 04/20/19 02:16 MRK 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 9D19024 EPA 8260D 04/20/19 02:16 MRK 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 9D19024 EPA 8260D 04/20/19 02:16 MRK 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 9D19024 EPA 8260D 04/20/19 02:16 MRK 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 9D19024 EPA 8260D 04/20/19 02:16 MRK 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 9D19024 EPA 8260D 04/20/19 02:16 MRK 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 9D19024 EPA 8260D 04/20/19 02:16 MRK 2-Butanone [78-93-3]^ 1.3 U ug/L 1 1.3 5.0 9D19024 EPA 8260D 04/20/19 02:16 MRK 2-Hexanone [591-78-6]^ 0.88 U ug/L 1 0.88 5.0 9D19024 EPA 8260D 04/20/19 02:16 MRK 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 9D19024 EPA 8260D 04/20/19 02:16 MRK Acetone [67-64-1]^ 10 U ug/L 1 10 20 9D19024 EPA 8260D 04/20/19 02:16 MRK Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 9D19024 EPA 8260D 04/20/19 02:16 MRK Benzene[71-43-2]^ 0.15 U ug/L 1 0.15 1.0 9D19024 EPA 8260D 04/20/19 02:16 MRK Bromochloromethane [74-97-5]^ 0.48 U ug/L 1 0.48 1.0 9D19024 EPA 8260D 04/20/19 02:16 MRK Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 02:16 MRK Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 9D19024 EPA 8260D 04/20/19 02:16 MRK Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 9D19024 EPA 8260D 04/20/19 02:16 MRK Carbon disulfide [75-15-0]^ 1.5 U ug/L 1 1.5 5.0 9D19024 EPA 8260D 04/20/19 02:16 MRK Carbon tetrachloride [56-23-5]^ 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 02:16 MRK Chlorobenzene [108-90-7]^ 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 02:16 MRK Chloroethane [75-00-3]^ 0.23 U ug/L 1 0.23 1.0 9D19024 EPA 8260D 04/20/19 02:16 MRK Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 9D19024 EPA 8260D 04/20/19 02:16 MRK Chloromethane [74-87-3]^ 0.13 U ug/L 1 0.13 1.0 9D19024 EPA 8260D 04/20/19 02:16 MRK cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 9D19024 EPA 8260D 04/20/19 02:16 MRK cis-1,3-Dichloropropene [10061-01-5]^ 0.20 U ug/L 1 0.20 1.0 9D19024 EPA 8260D 04/20/19 02:16 MRK Dibromochloromethane [124-48-1]^ 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 02:16 MRK Dibromomethane [74-95-3]^ 0.27 U ug/L 1 0.27 1.0 9D19024 EPA 8260D 04/20/19 02:16 MRK Ethylbenzene [100-41-4]^ 0.13 U ug/L 1 0.13 1.0 9D19024 EPA 8260D 04/20/19 02:16 MRK Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 9D19024 EPA 8260D 04/20/19 02:16 MRK Methylene chloride [75-09-2]^ 0.23 U ug/L 1 0.23 1.0 9D19024 EPA 8260D 04/20/19 02:16 MRK Styrene [100-42-5]^ 0.11 U ug/L 1 0.11 1.0 9D19024 EPA 8260D 04/20/19 02:16 MRK Tetrachloroethene [127-18-4]^ 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 02:16 MRK Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 9D19024 EPA 8260D 04/20/19 02:16 MRK trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 9D19024 EPA 8260D 04/20/19 02:16 MRK trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 9D19024 EPA 8260D 04/20/19 02:16 MRK trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 U ug/L 1 0.70 1.0 9D19024 EPA 8260D 04/20/19 02:16 MRK Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 9D19024 EPA 8260D 04/20/19 02:16 MRK Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 9D19024 EPA 8260D 04/20/19 02:16 MRK Vinyl acetate [108-05-4]^ 0.95 U ug/L 1 0.95 5.0 9D19024 EPA 8260D 04/20/19 02:16 MRK Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 9D19024 EPA 8260D 04/20/19 02:16 MRK Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 9D19024 EPA 8260D 04/20/19 02:16 MRK FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 9 Of 28 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103/12-SW4 Lab Sample ID:CC05275-03 Received: 04/15/19 10:00 Matrix: Surface Water Sampled:04/12/19 09:54 Work Order: CC05275 Project: White Street LF-Phase I,II,III SW Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed Notes 4-Bromofluorobenzene 58 1 50.0 116 % 53-136 9D19024 EPA 8260D 04120119 02:16 MRK Dlbromofluoromethane 46 1 50.0 92 % 67-129 9D19024 EPA 8260D 04120119 02:16 MRK Toluene-& 54 1 50.0 107 % 59-134 9D19024 EPA 8260D 04120119 02:16 MRK Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 9D18039 EPA 6020E 04/19/19 13:27 CM K Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 9D22016 EPA 6010D 04/24/19 16:09 ]DH Barium [7440-39-3]^ 56.8 ug/L 1 1.10 10.0 9D22016 EPA 6010D 04/24/19 16:09 ]DH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 9D22016 EPA 6010D 04/24/19 16:09 ]DH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 9D22016 EPA 6010D 04/24/19 16:09 ]DH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 9D22016 EPA 6010D 04/24/19 16:09 ]DH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 9D22016 EPA 6010D 04/24/19 16:09 ]DH Copper[7440-50-8]^ 3.66 J ug/L 1 1.60 10.0 9D22016 EPA 6010D 04/24/19 16:09 ]DH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 9D22016 EPA 6010D 04/24/19 16:09 ]DH Nickel[7440-02-0]^ 2.20 U ug/L 1 2.20 10.0 9D22016 EPA 6010D 04/24/19 16:09 ]DH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 9D22016 EPA 6010D 04/24/19 16:09 ]DH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 9D22016 EPA 6010D 04/24/19 16:09 ]DH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 9D18039 EPA 6020E 04/19/19 13:27 CM K Vanadium [7440-62-2]^ 1.78 J ug/L 1 1.40 10.0 9D22016 EPA 6010D 04/24/19 16:09 ]DH Zinc[7440-66-6]^ 12.1 ug/L 1 4.40 10.0 9D22016 EPA 6010D 04/24/19 16:09 ]DH Volatile Organic Compounds by GCMS SIM Isotope Dilution Analyte rCAS Numberl 1,4-Dioxane [123-91-1] Surrogates Toluene-d8 Results Flag Units DF MDL P L Batch Method Analyzed By Notes 1.2 U ug/L 1 1.2 2.0 9D19047 EPA 8260D 04/19/19 18:33 KKW Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes 5.9 1 5.00 119 % 75-125 9D19047 EPA 8260D 041191191623 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 10 Of 28 00� www.encolabs.com ANALYTICAL RESULTS Description: 4103/12-Trip Blank Lab Sample ID:CC05275-04 Received: 04/15/19 10:00 Matrix: Water Sampled:04/12/19 08:43 Work Order: CCO5275 Project: White Street LF-Phase I,II,III SW Sampled By:ENCO Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flao Units DF MDL Q Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK 1,1-Dichloroethane [75-34-3]A 0.13 U ug/L 1 0.13 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK 1,1-Dichloroethene [75-35-4]A 0.21 U ug/L 1 0.21 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK 1,2,3-Trichloropropane [96-18-4]A 0.23 U ug/L 1 0.23 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK 1,2-Dibromo-3-chloropropane [96-12-8]A 0.48 U ug/L 1 0.48 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK 1,2-Dibromoethane [106-93-4]A 0.66 U ug/L 1 0.66 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK 1,2-Dichlorobenzene [95-50-1]A 0.19 U ug/L 1 0.19 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK 1,2-Dichloroethane [107-06-2]A 0.21 U ug/L 1 0.21 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK 1,2-Dichloropropane [78-87-5]A 0.10 U ug/L 1 0.10 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK 1,4-Dichlorobenzene [106-46-7]A 0.19 U ug/L 1 0.19 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 9D19024 EPA 8260D 04/20/19 02:48 MRK 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 9D19024 EPA 8260D 04/20/19 02:48 MRK 4-Methyl-2-pentanone [108-10-1]A 1.1 U ug/L 1 1.1 5.0 9D19024 EPA 8260D 04/20/19 02:48 MRK Acetone [67-64-1]A 10 U ug/L 1 10 20 9D19024 EPA 8260D 04/20/19 02:48 MRK Acrylonitrile [107-13-1]A 3.5 U ug/L 1 3.5 10 9D19024 EPA 8260D 04/20/19 02:48 MRK Benzene[71-43-2]A 0.15 U ug/L 1 0.15 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK Bromodichloromethane [75-27-4]A 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK Bromoform [75-25-2]A 0.22 U ug/L 1 0.22 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 9D19024 EPA 8260D 04/20/19 02:48 MRK Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK Chlorobenzene [108-90-7]A 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK Chloroform [67-66-3]A 0.18 U ug/L 1 0.18 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK cis-1,2-Dichloroethene [156-59-2]A 0.15 U ug/L 1 0.15 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK Ethylbenzene [100-41-4]A 0.13 U ug/L 1 0.13 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK Iodomethane [74-88-4]A 1.7 U ug/L 1 1.7 5.0 9D19024 EPA 8260D 04/20/19 02:48 MRK Methylene chloride [75-09-2]A 0.73 J ug/L 1 0.23 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK Styrene [100-42-5]A 0.11 U ug/L 1 0.11 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK Toluene [108-88-3]A 0.14 U ug/L 1 0.14 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK trans-1,2-Dichloroethene [156-60-5]A 0.21 U ug/L 1 0.21 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK trans-1,3-Dichloropropene [10061-02-6]A 0.15 U ug/L 1 0.15 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK Trichloroethene [79-01-6]A 0.15 U ug/L 1 0.15 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK Trichlorofluoromethane [75-69-4]A 0.24 U ug/L 1 0.24 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 9D19024 EPA 8260D 04/20/19 02:48 MRK Vinyl chloride [75-01-4]A 0.32 U ug/L 1 0.32 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK Xylenes (Total) [1330-20-7]A 0.45 U ug/L 1 0.45 3.0 9D19024 EPA 8260D 04/20/19 02:48 MRK FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 11 Of 28 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103/12-Trip Blank Lab Sample ID:CC05275-04 Received: 04/15/19 10:00 Matrix: Water Sampled:04/12/19 08:43 Work Order: CC05275 Project: White Street LF-Phase I,II,III SW Sampled By: ENCO Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed Notes 4-Bromofluorobenzene 58 1 50.0 117 % 53-136 9D19024 EPA 8260D 04120119 02:48 MRK Dlbromofluoromethane 46 1 50.0 92 % 67-129 9D19024 EPA 8260D 04120119 02:48 MRK Toluene-& 53 1 50.0 106 % 59-134 9D19024 EPA 8260D 04120119 02:48 MRK Volatile Organic Compounds by GCMS SIM Isotope Dilution Analyte I'CAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes 1,4-Dioxane [123-91-1] 1.2 U ug/L 1 1.2 2.0 9D19047 EPA 8260D 04/19/19 19:10 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes Toluene-& 4.9 1 5.00 98 % 75-125 9D19047 EPA 6260D 0411911919:10 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 12 Of 28 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4103/12-SW3 Lab Sample ID:CC06163-01 Received: 04/17/19 11:30 Matrix: Surface Water Sampled:04/15/19 15:00 Work Order: CC06163 Project: White Street LF-Phase I,II,III SW Sampled By:ASHLEY MARTIN Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flan Units DF MDL Q Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]^ 0.17 U ug/L 1 0.17 1.0 9D23024 EPA 8260D 04/23/19 23:57 MRK 1,1,1-Trichloroethane [71-55-6]^ 0.12 U ug/L 1 0.12 1.0 9D23024 EPA 8260D 04/23/19 23:57 MRK 1,1,2,2-Tetrachloroethane [79-34-5]^ 0.28 U ug/L 1 0.28 1.0 9D23024 EPA 8260D 04/23/19 23:57 MRK 1,1,2-Trichloroethane [79-00-5]^ 0.14 U ug/L 1 0.14 1.0 9D23024 EPA 8260D 04/23/19 23:57 MRK 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 9D23024 EPA 8260D 04/23/19 23:57 MRK 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 9D23024 EPA 8260D 04/23/19 23:57 MRK 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 9D23024 EPA 8260D 04/23/19 23:57 MRK 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 9D23024 EPA 8260D 04/23/19 23:57 MRK 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 9D23024 EPA 8260D 04/23/19 23:57 MRK 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 9D23024 EPA 8260D 04/23/19 23:57 MRK 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 9D23024 EPA 8260D 04/23/19 23:57 MRK 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 9D23024 EPA 8260D 04/23/19 23:57 MRK 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 9D23024 EPA 8260D 04/23/19 23:57 MRK 2-Butanone [78-93-3]^ 1.3 U ug/L 1 1.3 5.0 9D23024 EPA 8260D 04/23/19 23:57 MRK 2-Hexanone [591-78-6]^ 0.88 U ug/L 1 0.88 5.0 9D23024 EPA 8260D 04/23/19 23:57 MRK 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 9D23024 EPA 8260D 04/23/19 23:57 MRK Acetone [67-64-1]^ 10 U ug/L 1 10 20 9D23024 EPA 8260D 04/23/19 23:57 MRK Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 9D23024 EPA 8260D 04/23/19 23:57 MRK Benzene [71-43-2]^ 0.15 U ug/L 1 0.15 1.0 9D23024 EPA 8260D 04/23/19 23:57 MRK Bromochloromethane [74-97-5]^ 0.48 U ug/L 1 0.48 1.0 9D23024 EPA 8260D 04/23/19 23:57 MRK Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 9D23024 EPA 8260D 04/23/19 23:57 MRK Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 9D23024 EPA 8260D 04/23/19 23:57 MRK Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 9D23024 EPA 8260D 04/23/19 23:57 MRK Carbon disulfide [75-15-0]^ 1.5 U ug/L 1 1.5 5.0 9D23024 EPA 8260D 04/23/19 23:57 MRK Carbon tetrachloride [56-23-5]^ 0.17 U ug/L 1 0.17 1.0 9D23024 EPA 8260D 04/23/19 23:57 MRK Chlorobenzene [108-90-7]^ 0.17 U ug/L 1 0.17 1.0 9D23024 EPA 8260D 04/23/19 23:57 MRK Chloroethane [75-00-3]^ 0.23 U ug/L 1 0.23 1.0 9D23024 EPA 8260D 04/23/19 23:57 MRK Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 9D23024 EPA 8260D 04/23/19 23:57 MRK Chloromethane [74-87-3]^ 0.13 U ug/L 1 0.13 1.0 9D23024 EPA 8260D 04/23/19 23:57 MRK cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 9D23024 EPA 8260D 04/23/19 23:57 MRK cis-1,3-Dichloropropene [10061-01-5]^ 0.20 U ug/L 1 0.20 1.0 9D23024 EPA 8260D 04/23/19 23:57 MRK Dibromochloromethane [124-48-1]^ 0.17 U ug/L 1 0.17 1.0 9D23024 EPA 8260D 04/23/19 23:57 MRK Dibromomethane [74-95-3]^ 0.27 U ug/L 1 0.27 1.0 9D23024 EPA 8260D 04/23/19 23:57 MRK Ethylbenzene [100-41-4]^ 0.13 U ug/L 1 0.13 1.0 9D23024 EPA 8260D 04/23/19 23:57 MRK Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 9D23024 EPA 8260D 04/23/19 23:57 MRK Methylene chloride [75-09-2]^ 0.23 U ug/L 1 0.23 1.0 9D23024 EPA 8260D 04/23/19 23:57 MRK Styrene[100-42-5]^ 0.11 U ug/L 1 0.11 1.0 9D23024 EPA 8260D 04/23/19 23:57 MRK Tetrachloroethene [127-18-4]^ 0.17 U ug/L 1 0.17 1.0 9D23024 EPA 8260D 04/23/19 23:57 MRK Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 9D23024 EPA 8260D 04/23/19 23:57 MRK trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 9D23024 EPA 8260D 04/23/19 23:57 MRK trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 9D23024 EPA 8260D 04/23/19 23:57 MRK trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 U ug/L 1 0.70 1.0 9D23024 EPA 8260D 04/23/19 23:57 MRK Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 9D23024 EPA 8260D 04/23/19 23:57 MRK Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 9D23024 EPA 8260D 04/23/19 23:57 MRK Vinyl acetate [108-05-4]^ 0.95 U ug/L 1 0.95 5.0 9D23024 EPA 8260D 04/23/19 23:57 MRK Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 9D23024 EPA 8260D 04/23/19 23:57 MRK Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 9D23024 EPA 8260D 04/23/19 23:57 MRK FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 13 of 28 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103/12-SW3 Lab Sample ID:CC06163-01 Received: 04/17/19 11:30 Matrix: Surface Water Sampled:04/15/19 15:00 Work Order: CC06163 Project: White Street LF-Phase I,II,III SW Sampled By:ASHLEY MARTIN Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed Notes 4-Bromofluorobenzene 58 1 50.0 115 % 53-136 9D23024 EPA 8260D 04123119 23:57 MRK Dlbromofluoromethane 44 1 50.0 88 % 67-129 9D23024 EPA 8260D 04123119 23:57 MRK Toluene-& 55 1 50.0 109 % 59-134 9D23024 EPA 8260D 04123119 23:57 MRK Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 9D24030 EPA 6020E 04/26/19 16:27 CM K Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 9D24027 EPA 6010D 04/26/19 13:59 ]DH Barium [7440-39-3]^ 40.0 ug/L 1 1.10 10.0 9D24027 EPA 6010D 04/26/19 13:59 ]DH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 9D24027 EPA 6010D 04/26/19 13:59 ]DH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 9D24027 EPA 6010D 04/26/19 13:59 ]DH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 9D24027 EPA 6010D 04/26/19 13:59 ]DH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 9D24027 EPA 6010D 04/26/19 13:59 ]DH Copper[7440-50-8]^ 5.11 J ug/L 1 1.60 10.0 9D24027 EPA 6010D 04/26/19 13:59 ]DH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 9D24027 EPA 6010D 04/26/19 13:59 ]DH Nickel[7440-02-0]^ 2.20 U ug/L 1 2.20 10.0 9D24027 EPA 6010D 04/26/19 13:59 ]DH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 9D24027 EPA 6010D 04/26/19 13:59 ]DH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 9D24027 EPA 6010D 04/26/19 13:59 ]DH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 9D24030 EPA 6020E 04/26/19 16:27 CM K Vanadium [7440-62-2]^ 2.39 J ug/L 1 1.40 10.0 9D24027 EPA 6010D 04/26/19 13:59 ]DH Zinc[7440-66-6]^ 13.9 ug/L 1 4.40 10.0 9D24027 EPA 6010D 04/26/19 13:59 ]DH Volatile Organic Compounds by GCMS SIM Isotope Dilution Analyte rCAS Numberl 1,4-Dioxane [123-91-1] Surrogates Toluene-d8 Results Flag Units DF MDL P L Batch Method Analyzed By Notes 1.2 U ug/L 1 1.2 2.0 9D22021 EPA 8260D 04/22/19 20:19 KKW Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes 5.6 1 5.00 112 % 75-125 9D22021 EPA 8260D 04122119 20:19 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 14 Of 28 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 9D19024 - EPA 5030E MS Blank (9D39024-BLK3) Prepared: 04/19/2019 11:31 Analyzed: 04/19/2019 19:57 Analvte Result Flaa POL Units 1, 1, 1,2-Tetrachloroethane 0.17 U 1.0 ug/L 1,1,1-Trichloroethane 0.12 U 1.0 ug/L 1,1,2,2-Tetrachloroethane 0.28 U 1.0 ug/L 1,1,2-Trichloroethane 0.14 U 1.0 ug/L 1,1-Dichloroethane 0.13 U 1.0 ug/L 1,1-Dichloroethene 0.21 U 1.0 ug/L 1,2,3-Trichloropropane 0.23 U 1.0 ug/L 1,2-Dibromo-3-chloropropane 0.48 U 1.0 ug/L 1,2-Dibromoethane 0.66 U 1.0 ug/L 1,2-Dichlorobenzene 0.19 U 1.0 ug/L 1,2-Dichloroethane 0.21 U 1.0 ug/L 1,2-Dichloropropane 0.10 U 1.0 ug/L 1,4-Dichlorobenzene 0.19 U 1.0 ug/L 2-Butanone 1.3 U 5.0 ug/L 2-Hexanone 0.88 U 5.0 ug/L 4-Methyl-2-pentanone 1.1 U 5.0 ug/L Acetone 10 U 20 ug/L Acrylonitrile 3.5 U 10 ug/L Benzene 0.15 U 1.0 ug/L Bromochloromethane 0.48 U 1.0 ug/L Bromodichloromethane 0.17 U 1.0 ug/L Bromoform 0.22 U 1.0 ug/L Bromomethane 0.14 U 1.0 ug/L Carbon disulfide 1.5 U 5.0 ug/L Carbon tetrachloride 0.17 U 1.0 ug/L Chlorobenzene 0.17 U 1.0 ug/L Chloroethane 0.23 U 1.0 ug/L Chloroform 0.18 U 1.0 ug/L Chloromethane 0.13 U 1.0 ug/L cis- 1,2-Dichloroethene 0.15 U 1.0 ug/L cis- 1,3-Dichloropropene 0.20 U 1.0 ug/L Dibromochloromethane 0.17 U 1.0 ug/L Dibromomethane 0.27 U 1.0 ug/L Ethylbenzene 0.13 U 1.0 ug/L Iodomethane 1.7 U 5.0 ug/L Methylene chloride 0.23 U 1.0 ug/L Styrene 0.11 U 1.0 ug/L Tetrachloroethene 0.17 U 1.0 ug/L Toluene 0.14 U 1.0 ug/L trans-1,2-Dichloroethene 0.21 U 1.0 ug/L trans-1,3-Dichloropropene 0.15 U 1.0 ug/L trans-1,4-Dichloro-2-butene 0.70 U 1.0 ug/L Trichloroethene 0.15 U 1.0 ug/L Trichlorofluoromethane 0.24 U 1.0 ug/L Vinyl acetate 0.95 U 5.0 ug/L Vinyl chloride 0.32 U 1.0 ug/L Xylenes (Total) 0.45 U 3.0 ug/L Spike Source %REC RPD Level Result %REC Limits RPD Limit Notes 4-Bromofluorobenzene Dibromofluoromethane FINAL 55 u9/L 50.0 110 53-136 46 u9/L 50.0 92 67-129 This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 15 Of 28 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 9D19024 - EPA 5030E MS - Continued Blank (9D39024-BLK3) Continued Prepared: 04/19/2019 11:31 Analyzed: 04/19/2019 19:57 Spike Source %REC RPD Analvte Result Flaq Q Units Level Result %REC Limits RPD Limit Notes Toluene-d8 52 u91L 50.0 103 59-134 LCS (91319024-BSI) Prepared: 04/19/2019 11:31 Analyzed: 04/19/2019 17:51 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 18 1.0 ug/L 20.0 89 75-133 Benzene 21 1.0 ug/L 20.0 103 80-134 Chlorobenzene 20 1.0 ug/L 20.0 101 80-120 Toluene 20 1.0 ug/L 20.0 102 71-120 Trichloroethene 21 1.0 ug/L 20.0 103 74-120 Matrix Spike (9D19024-MS1) Prepared: 04/19/2019 11:31 Analyzed: 04/19/2019 18:22 Source: CC06172-09 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 19 1.0 ug/L 20.0 0.21 U 96 75-133 Benzene 22 1.0 ug/L 20.0 0.15 U 109 80-134 Chlorobenzene 20 1.0 ug/L 20.0 0.17 U 101 80-120 Toluene 21 1.0 ug/L 20.0 0.14 U 105 71-120 Trichloroethene 26 1.0 ug/L 20.0 0.15 U 130 74-120 QM-07 Matrix Spike Dup (91319024-MSDS) Prepared: 04/19/2019 11:31 Analyzed: 04/19/2019 18:54 Source: CC06172-09 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 19 1.0 ug/L 20.0 0.21 U 94 75-133 2 20 Benzene 20 1.0 ug/L 20.0 0.15 U 102 80-134 7 17 Chlorobenzene 20 1.0 ug/L 20.0 0.17 U 102 80-120 2 16 Toluene 21 1.0 ug/L 20.0 0.14 U 103 71-120 2 17 Trichloroethene 25 1.0 ug/L 20.0 0.15 U 126 74-120 3 22 QM-07 Batch 9D23024 - EPA 5030E MS Blank (9D23024-BLK3) Prepared: 04/23/2019 00:21 Analyzed: 04/23/2019 17:07 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1,1,2-Tetrachloroethane 0.17 U 1.0 ug/L 1,1,1-Trichloroethane 0.12 U 1.0 ug/L 1,1,2,2-Tetrachloroethane 0.28 U 1.0 ug/L 1,1,2-Trichloroethane 0.14 U 1.0 ug/L 1,1-Dichloroethane 0.13 U 1.0 ug/L 1,1-Dichloroethene 0.21 U 1.0 ug/L 1,2,3-Trichloropropane 0.23 U 1.0 ug/L 1,2-Dibromo-3-chloropropane 0.48 U 1.0 ug/L 1,2-Dibromoethane 0.66 U 1.0 ug/L 1,2-Dichlorobenzene 0.19 U 1.0 ug/L 1,2-Dichloroethane 0.21 U 1.0 ug/L 1,2-Dichloropropane 0.10 U 1.0 ug/L 1,4-Dichlorobenzene 0.19 U 1.0 ug/L 2-Butanone 1.3 U 5.0 ug/L FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 16 Of 28 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 9D23024 - EPA 5030E MS - Continued Blank (91323024-BLK3) Continued Prepared: 04/23/2019 00:21 Analyzed: 04/23/2019 17:07 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 2-Hexanone 0.88 U 5.0 ug/L 4-Methyl-2-pentanone 1.1 U 5.0 ug/L Acetone 10 U 20 ug/L Acrylonitrile 3.5 U 10 ug/L Benzene 0.15 U 1.0 ug/L Bromochloromethane 0.48 U 1.0 ug/L Bromodichloromethane 0.17 U 1.0 ug/L Bromoform 0.22 U 1.0 ug/L Bromomethane 0.14 U 1.0 ug/L Carbon disulfide 1.5 U 5.0 ug/L Carbon tetrachloride 0.17 U 1.0 ug/L Chlorobenzene 0.17 U 1.0 ug/L Chloroethane 0.23 U 1.0 ug/L Chloroform 0.18 U 1.0 ug/L Chloromethane 0.13 U 1.0 ug/L cis- 1,2-Dichloroethene 0.15 U 1.0 ug/L cis- 1,3-Dichloropropene 0.20 U 1.0 ug/L Dibromochloromethane 0.17 U 1.0 ug/L Dibromomethane 0.27 U 1.0 ug/L Ethylbenzene 0.13 U 1.0 ug/L Iodomethane 1.7 U 5.0 ug/L Methylene chloride 0.23 U 1.0 ug/L Styrene 0.11 U 1.0 ug/L Tetrachloroethene 0.17 U 1.0 ug/L Toluene 0.14 U 1.0 ug/L trans-1,2-Dichloroethene 0.21 U 1.0 ug/L trans-1,3-Dichloropropene 0.15 U 1.0 ug/L trans-1,4-Dichloro-2-butene 0.70 U 1.0 ug/L Trichloroethene 0.15 U 1.0 ug/L Trichlorofluoromethane 0.24 U 1.0 ug/L Vinyl acetate 0.95 U 5.0 ug/L Vinyl chloride 0.32 U 1.0 ug/L Xylenes (Total) 0.45 U 3.0 ug/L 4-Bromofluorobenzene 59 u9/L 50.0 118 53-136 Dlbromofluoromethane 46 u9/L 50.0 92 67-129 Toluene-c48 55 u9/L 50.0 109 59-134 LCS (9D23024-BS1) Prepared: 04/23/2019 00:21 Analyzed: 04/23/2019 14:43 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 16 1.0 ug/L 20.0 80 75-133 Benzene 22 1.0 ug/L 20.0 110 80-134 Chlorobenzene 20 1.0 ug/L 20.0 98 80-120 Toluene 22 1.0 ug/L 20.0 109 71-120 Trichloroethene 21 1.0 ug/L 20.0 104 74-120 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 17 Of 28 QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 9D23024 - EPA 5030E MS - Continued (� �Eo www.encolabs.com Matrix Spike (9D23024-MS3) Prepared: 04/23/2019 00:21 Analyzed: 04/23/2019 15:24 Source: CC06287-08 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 18 1.0 ug/L 20.0 0.21 U 92 75-133 Benzene 24 1.0 ug/L 20.0 0.15 U 121 80-134 Chlorobenzene 20 1.0 ug/L 20.0 0.17 U 101 80-120 Toluene 22 1.0 ug/L 20.0 0.14 U 112 71-120 Trichloroethene 25 1.0 ug/L 20.0 0.15 U 124 74-120 QM-07 Matrix Spike Dup (9D23024-MSDI) Prepared: 04/23/2019 00:21 Analyzed: 04/23/2019 16:03 Source: CC06287-08 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 19 1.0 ug/L 20.0 0.21 U 97 75-133 5 20 Benzene 25 1.0 ug/L 20.0 0.15 U 124 80-134 2 17 Chlorobenzene 20 1.0 ug/L 20.0 0.17 U 99 80-120 2 16 Toluene 22 1.0 ug/L 20.0 0.14 U 109 71-120 3 17 Trichloroethene 25 1.0 ug/L 20.0 0.15 U 126 74-120 2 22 QM-07 Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 9DIS039 - EPA 3005A Blank (9D18039-BLK3) Prepared: 04/18/2019 16:07 Analyzed: 04/19/2019 12:27 Spike Source %REC RPD Analvte Result Flaq Q Units Level Result %REC Limits RPD Limit Notes Antimony 0.370 U 1.00 ug/L Thallium 0.110 U 1.00 ug/L LCS (9D18039-BSI) Prepared: 04/18/2019 16:07 Analyzed: 04/19/2019 12:36 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 18.2 1.00 ug/L 20.0 91 80-120 Thallium 18.6 1.00 ug/L 20.0 93 80-120 Matrix Spike (91318039-MS3) Prepared: 04/18/2019 16:07 Analyzed: 04/19/2019 12:40 Source: CC06034-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 36.6 2.00 ug/L 40.0 0.740 U 92 75-125 Thallium 35.8 2.00 ug/L 40.0 0.220 U 90 75-125 Matrix Spike Dup (9D38039-MSD1) Prepared: 04/18/2019 16:07 Analyzed: 04/19/2019 12:44 Source: CC06034-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 37.4 2.00 ug/L 40.0 0.740 U 94 75-125 2 20 Thallium 36.9 2.00 ug/L 40.0 0.220 U 92 75-125 3 20 Post Spike (9D38039-PS3) Prepared: 04/18/2019 16:07 Analyzed: 04/19/2019 12:49 Source: CC06034-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 20.2 1.00 ug/L 20.0 0.0231 101 75-125 Thallium 19.7 1.00 ug/L 20.0 0.00406 98 75-125 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 18 Of 28 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 9D22016 - EPA 3005A Blank (9D22016-BLK3) Prepared: 04/22/2019 11:11 Analyzed: 04/24/2019 11:01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 7.60 U 10.0 ug/L Barium 1.10 U 10.0 ug/L Beryllium 0.160 U 1.00 ug/L Cadmium 0.360 U 1.00 ug/L Chromium 1.40 U 10.0 ug/L Cobalt 1.40 U 10.0 ug/L Copper 1.60 U 10.0 ug/L Lead 3.10 U 10.0 ug/L Nickel 2.20 U 10.0 ug/L Selenium 6.20 U 10.0 ug/L Silver 1.90 U 10.0 ug/L Vanadium 1.40 U 10.0 ug/L Zinc 4.40 U 10.0 ug/L LCS (9D22016-BS1) Prepared: 04/22/2019 11:11 Analyzed: 04/24/2019 11:13 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 218 10.0 ug/L 200 109 80-120 Barium 208 10.0 ug/L 200 104 80-120 Beryllium 21.7 1.00 ug/L 20.0 109 80-120 Cadmium 21.6 1.00 ug/L 20.0 108 80-120 Chromium 211 10.0 ug/L 200 105 80-120 Cobalt 211 10.0 ug/L 200 105 80-120 Copper 206 10.0 ug/L 200 103 80-120 Lead 215 10.0 ug/L 200 107 80-120 Nickel 213 10.0 ug/L 200 106 80-120 Selenium 223 10.0 ug/L 200 112 80-120 Silver 215 10.0 ug/L 200 107 80-120 Vanadium 208 10.0 ug/L 200 104 80-120 Zinc 220 10.0 ug/L 200 110 80-120 Matrix Spike (9D22016-MS3) Prepared: 04/22/2019 11:11 Analyzed: 04/24/2019 11:17 Source: CCO5219-10 Spike Source %REC RPD Analvte Result Flaa Q Units Level Result %REC Limits RPD Limit Notes Arsenic 201 10.0 ug/L 200 7.60 U 101 75-125 Barium 263 10.0 ug/L 200 55.4 104 75-125 Beryllium 22.6 1.00 ug/L 20.0 0.160 U 113 75-125 Cadmium 21.1 1.00 ug/L 20.0 0.360 U 106 75-125 Chromium 214 10.0 ug/L 200 1.40 U 107 75-125 Cobalt 205 10.0 ug/L 200 1.40 U 103 75-125 Copper 215 10.0 ug/L 200 1.60 U 108 75-125 Lead 207 10.0 ug/L 200 3.10 U 103 75-125 Nickel 219 10.0 ug/L 200 6.74 106 75-125 Selenium 215 10.0 ug/L 200 6.20 U 108 75-125 Silver 221 10.0 ug/L 200 1.90 U 110 75-125 Vanadium 219 10.0 ug/L 200 2.25 108 75-125 Zinc 221 10.0 ug/L 200 5.22 108 75-125 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 19 Of 2$ (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 9D22016 - EPA 3005A - Continued Matrix Spike Dup (9D22016-MSD1) Prepared: 04/22/2019 11:11 Analyzed: 04/24/2019 11:19 Source: CCO5219-10 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 208 10.0 ug/L 200 7.60 U 104 75-125 3 20 Barium 275 10.0 ug/L 200 55.4 110 75-125 4 20 Beryllium 22.1 1.00 ug/L 20.0 0.160 U 111 75-125 2 20 Cadmium 21.9 1.00 ug/L 20.0 0.360 U 110 75-125 4 20 Chromium 213 10.0 ug/L 200 1.40 U 106 75-125 0.8 20 Cobalt 211 10.0 ug/L 200 1.40 U 106 75-125 3 20 Copper 210 10.0 ug/L 200 1.60 U 105 75-125 2 20 Lead 213 10.0 ug/L 200 3.10 U 106 75-125 3 20 Nickel 227 10.0 ug/L 200 6.74 110 75-125 4 20 Selenium 209 10.0 ug/L 200 6.20 U 105 75-125 3 20 Silver 211 10.0 ug/L 200 1.90 U 106 75-125 4 20 Vanadium 215 10.0 ug/L 200 2.25 107 75-125 1 20 Zinc 230 10.0 ug/L 200 5.22 112 75-125 4 20 Post Spike (9D22016-PSI) Prepared: 04/22/2019 11:11 Analyzed: 04/24/2019 11:22 Source: CCO5219-10 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 0.207 0.0100 mg/L 0.200 -0.00900 104 80-120 Barium 0.260 0.0100 mg/L 0.200 0.0554 102 80-120 Beryllium 0.0221 0.00100 mg/L 0.0200 -0.000251 111 80-120 Cadmium 0.0213 0.00100 mg/L 0.0200 -0.000576 106 80-120 Chromium 0.211 0.0100 mg/L 0.200 0.000968 105 80-120 Cobalt 0.209 0.0100 mg/L 0.200 -0.000299 104 80-120 Copper 0.209 0.0100 mg/L 0.200 0.00142 104 80-120 Lead 0.208 0.0100 mg/L 0.200 -0.000692 104 80-120 Nickel 0.213 0.0100 mg/L 0.200 0.00674 103 80-120 Selenium 0.215 0.0100 mg/L 0.200 -0.0167 108 80-120 Silver 0.221 0.0100 mg/L 0.200 -0.000488 111 80-120 Vanadium 0.215 0.0100 mg/L 0.200 0.00225 106 80-120 Zinc 0.216 0.0100 mg/L 0.200 0.00522 105 80-120 Batch 9D24027 - EPA 3005A Blank (9D24027-BLKI) Prepared: 04/24/2019 11:37 Analyzed: 04/26/2019 11:38 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 7.60 U 10.0 ug/L Barium 1.10 U 10.0 ug/L Beryllium 0.160 U 1.00 ug/L Cadmium 0.360 U 1.00 ug/L Chromium 1.40 U 10.0 ug/L Cobalt 1.40 U 10.0 ug/L Copper 1.60 U 10.0 ug/L Lead 3.10 U 10.0 ug/L Nickel 2.20 U 10.0 ug/L Selenium 6.20 U 10.0 ug/L Silver 1.90 U 10.0 ug/L Vanadium 1.40 U 10.0 ug/L Zinc 4.40 U 10.0 ug/L FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 2O Of 28 0Nk"q09 www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 9D24027 - EPA 3005A - Continued LCS (9D24027-BSI) Prepared: 04/24/2019 11:37 Analyzed: 04/26/2019 11:46 Spike Source %REC RPD Analvte Result Flao POL Units Level Result %REC Limits RPD Limit Notes Arsenic 205 10.0 ug/L 200 103 80-120 Barium 197 10.0 ug/L 200 98 80-120 Beryllium 20.6 1.00 ug/L 20.0 103 80-120 Cadmium 19.8 1.00 ug/L 20.0 99 80-120 Chromium 199 10.0 ug/L 200 100 80-120 Cobalt 204 10.0 ug/L 200 102 80-120 Copper 199 10.0 ug/L 200 99 80-120 Lead 197 10.0 ug/L 200 99 80-120 Nickel 200 10.0 ug/L 200 100 80-120 Selenium 208 10.0 ug/L 200 104 80-120 Silver 210 10.0 ug/L 200 105 80-120 Vanadium 199 10.0 ug/L 200 99 80-120 Zinc 200 10.0 ug/L 200 100 80-120 Matrix Spike (9D24027-MS3) Prepared: 04/24/2019 11:37 Analyzed: 04/26/2019 11:48 Source: CCO5240-02 Spike Source %REC RPD Awe Result Flaa ML Units Level Result %REC Limits RPD Limit Notes Arsenic 218 10.0 ug/L 200 12.2 103 75-125 Barium 285 10.0 ug/L 200 85.5 100 75-125 Beryllium 20.0 1.00 ug/L 20.0 0.160 U 100 75-125 Cadmium 12.3 1.00 ug/L 20.0 0.360 U 62 75-125 QM-07 Chromium 200 10.0 ug/L 200 1.40 U 100 75-125 Cobalt 917 10.0 ug/L 200 740 89 75-125 Copper 227 10.0 ug/L 200 25.5 101 75-125 Lead 196 10.0 ug/L 200 3.10 U 98 75-125 Nickel 210 10.0 ug/L 200 5.85 102 75-125 Selenium 139 10.0 ug/L 200 6.20 U 69 75-125 QM-07 Silver 196 10.0 ug/L 200 1.90 U 98 75-125 Vanadium 204 10.0 ug/L 200 2.73 101 75-125 Zinc 213 10.0 ug/L 200 8.59 102 75-125 Matrix Spike Dup (9D24027-MSD1) Prepared: 04/24/2019 11:37 Analyzed: 04/26/2019 11:51 Source: CCO5240-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 229 10.0 ug/L 200 12.2 108 75-125 5 20 Barium 290 10.0 ug/L 200 85.5 102 75-125 2 20 Beryllium 20.6 1.00 ug/L 20.0 0.160 U 103 75-125 3 20 Cadmium 13.0 1.00 ug/L 20.0 0.360 U 65 75-125 6 20 QM-07 Chromium 206 10.0 ug/L 200 1.40 U 103 75-125 3 20 Cobalt 919 10.0 ug/L 200 740 90 75-125 0.2 20 Copper 235 10.0 ug/L 200 25.5 105 75-125 3 20 Lead 201 10.0 ug/L 200 3.10 U 100 75-125 3 20 Nickel 214 10.0 ug/L 200 5.85 104 75-125 2 20 Selenium 147 10.0 ug/L 200 6.20 U 74 75-125 6 20 QM-07 Silver 206 10.0 ug/L 200 1.90 U 103 75-125 5 20 Vanadium 210 10.0 ug/L 200 2.73 104 75-125 3 20 Zinc 218 10.0 ug/L 200 8.59 105 75-125 2 20 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 21 Of 28 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 9D24027 - EPA 3005A - Continued Post Spike (9D24027-PS3) Prepared: 04/24/2019 11:37 Analyzed: 04/26/2019 12:00 Source: CCO5240-02 Analvte Arsenic Barium Beryllium Cadmium Chromium Cobalt Copper Lead Nickel Selenium Silver Vanadium Zinc Batch 9D24030 - EPA 3005A Result Flaq POL Units 0.221 0.0100 mg/L 0.282 0.0100 mg/L 0.0199 0.00100 mg/L 0.0130 0.00100 mg/L 0.199 0.0100 mg/L 0.896 0.0100 mg/L 0.226 0.0100 mg/L 0.199 0.0100 mg/L 0.208 0.0100 mg/L 0.142 0.0100 mg/L 0.206 0.0100 mg/L 0.203 0.0100 mg/L 0.216 0.0100 mg/L Spike Source %REC RPD Level Result %REC Limits RPD Limit Notes 0.200 0.0122 104 80-120 0.200 0.0855 98 80-120 0.0200 -0.000849 100 80-120 0.0200 -0.00679 65 80-120 QM-08 0.200 -0.00161 100 80-120 0.200 0.740 78 80-120 QM-08 0.200 0.0255 100 80-120 0.200 -0.00668 100 80-120 0.200 0.00585 101 80-120 0.200 -0.0796 71 80-120 QM-08 0.200 -0.00798 103 80-120 0.200 0.00273 100 80-120 0.200 0.00859 104 80-120 Blank (9D24030-BLK3) Prepared: 04/24/2019 11:49 Analyzed: 04/26/2019 15:51 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 0.370 U 1.00 ug/L Thallium 0.110 U 1.00 ug/L LCS (9D24030-BSI) Prepared: 04/24/2019 11:49 Analyzed: 04/26/2019 16:00 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 19.6 1.00 ug/L 20.0 98 80-120 Thallium 18.4 1.00 ug/L 20.0 92 80-120 Matrix Spike (9D24030-MS1) Prepared: 04/24/2019 11:49 Analyzed: 04/26/2019 16:05 Source: CCO5890-05 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 38.9 2.00 ug/L 40.0 0.740 U 97 75-125 Thallium 36.3 2.00 ug/L 40.0 0.220 U 91 75-125 Matrix Spike Dup (9D24030-MSDS) Prepared: 04/24/2019 11:49 Analyzed: 04/26/2019 16:09 Source: CC05890-05 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 39.1 2.00 ug/L 40.0 0.740 U 98 75-125 0.6 20 Thallium 36.4 2.00 ug/L 40.0 0.220 U 91 75-125 0.2 20 Post Spike (9D24030-PS1) Prepared: 04/24/2019 11:49 Analyzed: 04/26/2019 16:14 Source: CCO5890-05 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 20.4 1.00 ug/L 20.0 0.0117 102 75-125 Thallium 18.7 1.00 ug/L 20.0 0.00159 93 75-125 Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Batch 9D19047 - EPA 5030E MS FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 22 Of 28 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Batch 9D19047 - EPA 5030E MS - Continued Blank (9D39047-BLK3) Prepared: 04/19/2019 00:00 Analyzed: 04/19/2019 13:56 Analvte Result Flaq 1,4-Dioxane 1.2 Ll POL Units 2.0 ug/L Spike Source Level Result %REC %REC Limits RPD RPD Limit Notes Toluene-d8 5.8 u91L 5.00 115 75-125 LCS (91319047-BSI) Prepared: 04/19/2019 00:00 Analyzed: 04/19/2019 12:50 Analvte Result Flaq 1,4-Dioxane 25 POL Units 2.0 ug/L Spike Source Level Result 25.0 %REC %REC Limits RPD 101 80-133 RPD Limit Notes Toluene-d8 5.0 u91L 5.00 99 75-125 LCS Dup (9D19047-BSD1) Prepared: 04/19/2019 00:00 Analyzed: 04/19/2019 13:23 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 26 2.0 uq/L 25.0 105 80-133 3 19 QM-10 Toluene-d8 5.1 u91L 5.00 101 75-125 QM-10 Batch 9D22021 - EPA 5030E MS LCS Dup (9D22021-BSD3) Prepared: 04/22/2019 00:00 Analyzed: 04/22/2019 10:11 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 27 2.0 ug/L 25.0 107 80-133 9 19 QM-10 Toluene-d8 4.8 u91L 5.00 95 75-125 QM-10 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 23 Of 28 (� �Eo www.encolabs.com FLAGS/NOTES AND DEFINITIONS B The analyte was detected in the associated method blank. D The sample was analyzed at dilution. J The reported value is between the laboratory method detection limit (MDL) and the laboratory method reporting limit (MRL), adjusted for actual sample preparation data and moisture content, where applicable. U The analyte was analyzed for but not detected to the level shown, adjusted for actual sample preparation data and moisture content, where applicable. E The concentration indicated for this analyte is an estimated value above the calibration range of the instrument. This value is considered an estimate. MRL Method Reporting Limit. The MRL is roughly equivalent to the practical quantitation limit (PQL) and is based on the low point of the calibration curve, when applicable, sample preparation factor, dilution factor, and, in the case of soil samples, moisture content. PQL PQL: Practical Quantitation Limit. The PQL presented is the laboratory MRL. N The analysis indicates the presence of an analyte for which there is presumptive evidence (85% or greater confidence) to make a "tentative identification". P Greater than 25% concentration difference was observed between the primary and secondary GC column. The lower concentration is reported. [CALC] Calculated analyte - MDL/MRL reported to the highest reporting limit of the component analyses. QM-07 The spike recovery was outside acceptance limits for the MS and/or MSD. The batch was accepted based on acceptable LCS recovery. QM-08 Post -digestion spike did not meet method requirements due to confirmed matrix effects (dilution test). QM-10 LCS/LCSD were analyzed in place of MS/MSD. FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 24 of 28 E 0 u m 0 u C Ol 3 3 cl C 0 LU U v c 01 0 a in x u� V! p N m D � n (�¢z� tL a w 0 Z a U V) ui 0 o a� CC IL 0a�-+ -j d M LL Z > W o 0 u aw 0 uw z 0 � o a O c m y= a E O Q x u C5 in m LLJ ` r n v E ca a J ro � c 4 � m w y = U Q � v c a � 0 O Un x X Y. O QI W IS a09Z9' 4 xrpueddb Q09Z9 x X X x X v �v N N i V �- 47 ' P "Ca LO � g m y! coov! A N 4 7 o a Vd "(, ON Z r Z +C+C�� N O❑ aJ m - O �- m 0 J o 9L O m C\i m U a a a Q m w v _ Ln ° ]G i O U 4 V G oLt ll M Q m c N N N N E m� O b b m E -} CG 0. C a_ W co <nAOY z � v It Z d rr II�� Nn Q1 N c a E a E E F=- 7 U d U H n n O a U c m m k � E k c o 0 v 9 Z cri a C Q N c V a Q O a a U r c� m m d in m U m Q U m ¢ U ar 2 �O L E CJi E E k L � U V1 m� 0 m m m n m a l l v c c x y S Q M o U v v v } al m cc m e Y N C Page 25 of 2 Sample Preservation Verification ENCO Cary ENCO Work Order: CCO5275 Project White Street LF-Phase 111,111 SW Client: Golder Associates, Inc. (GO007) Project #: 1668421.105 Logged In: 15-Apr-19 15:12Logged By. Rachel Ann Y}o1nish j Preservation Check Performed By: w Date/TimLi+ I e: I -) ! �� 000 CCO5275-01 Cont T e yP Pres (pH) Requirement PH Checked 1 n Control DatelTime PH Adjusted Adjusted Reagent Used/Comments A 250mLP+HNO3 <2 V Y / N / NA Y . N / NA CCO5275-02 Cont Type �e Pres (PH) Requirement pH Checked/ In.Control Datefrime pH Adjusted Adjusted Reagent Used/Comments A 250mLP+HNO3 <2 (Y I;N 1 NA Y NA CCO5275-03 Cont Type y Pres (pH) Requirement pH Checked 1 Ip Control DatefTime pH AdJusted Adjusted Reagent Used/Comments A 250mLP+HNO3 = : Y/I N I NA YIN f NA Reagent Name ID 1 2 pH Strip ID: PH Strips CSJ074-:1 Reagent Name ID 3 J 4 Rea ent Name ID 5 6 C:lelmntlPririrrwKo_HreservationCheck. rpt Page 26 of 28 I-C s 3 C cc 0 0 , cc a 0 C0 U LL O Z a 2 U V/ w FE O a a co a J. Z O Q cc w 0) z O U J z w 2 Z O Z w m G U vl y H c Q m x-25 r� a ( C e�i H m N N m E m E E m it � C o D w J m a ¢ 2 c U j Q m E C > � n U C m C U N � c w O M `E ¢ � � m Y w , o ro 2 m C C ¢ U in, n N N w m ff ¢ _ c Z E o ¢ �Q O w o u w a t� c -r -y , m c O C) E S1 E E a t 5 -A:A -V O o Q a m N lV✓.h� �V� V 'v ✓+ D 2 Co v D n Q m 1p • y� � \ • `` /A� cw w m Q 'y Z e Ic S$ m 0' S .� Q c m o o W U E ¢ ¢ fY U E t ei n C' E J WL U e a m 17 �' z � N m m 4 C O Ii C m Z n fYy'7 r s4 z c w LL a7 J 3 Page 27 of 28 U ¢ Sample Preservation Verification ENCO Cary L �J Work Order: CCO6163 Project: White Street LF-Phase 1,11,111 SW Client: Golder Associates, Inc. (GO007) Project #: 1668421.105 Logged In: 17-Apr-19 19:09 Logged By: Rachel An2-1 ish D(w 0 Preservation Check Performed By: DatelTime:V`____ CC06163-01 Cont. Type Prep t�4 P, Requrrernent: p FI Checked / Control DatelTtrne pE-t Adjusted Adjusted. Reagent Used/Comments A 250mLP+HNO3 <2 / N / NA Y N NA Rea ent Name ID 1 2 pH Strip ID: PH Strips C810741 Rea ent Name ID 3 4 Rea ent Name ID 5 6 Page 28 of 28 C:IelmntlPrlr�tkwKu_ri e5erVduor��,necK. rpt 1 WORK ORDER Printed: 4/29/2019 10:45:42AM CC05275 ENCO Cary Sample Receipt Conditions Client: Golder Associates, Inc. (G0007) Lab Project Mgr: Stephanie Franz Project: White Street LF-Phase I,II,III SW Project Number: 1668421.105 PO #: Report To: Invoice To: Golder Associates, Inc. (G0007) City of Greensboro (CI034) Dusty Reedy Richard Lovett 5B Oak Branch Drive 401 Patton Ave Greensboro, NC 27407 Greensboro, NC 27406 Phone: (336) 852-4903 Phone :(336) 373-4188 Fax: (336) 852-4904 Fax: Received By: David E. Wilder Date Received: 15-Apr-19 10:00 Logged In By: Rachel Ann Yonish Date Logged In: 15-Apr-19 15:12 Work Order Comments: C-1910 received at 0.7°C Containers Intact Y Containers Properly Preserved Y Proper Containers Received Y All Samples in PreLog Received Y COC/Labels Agree Y Custody Seals Intact Y Volatile Containers Preserved Y Volatile Containers Headspace Free Y Aqueous Samples Checked for Residual Cl N Received On Ice Y Temperature Corrected Y Reviewed By Date Page 1 of 1 WORK ORDER Printed: 4/29/2019 10:45:30AM CC06163 ENCO Cary Sample Receipt Conditions Client: Golder Associates, Inc. (G0007) Lab Project Mgr: Stephanie Franz Project: White Street LF-Phase I,II,III SW Project Number: 1668421.105 PO #: Report To: Invoice To: Golder Associates, Inc. (G0007) City of Greensboro (CI034) Dusty Reedy Richard Lovett 5B Oak Branch Drive 401 Patton Ave Greensboro, NC 27407 Greensboro, NC 27406 Phone: (336) 852-4903 Phone :(336) 373-4188 Fax: (336) 852-4904 Fax: Received By: Timothy J. Parker Date Received: 17-Apr-19 11:30 Logged In By: Rachel Ann Yonish Date Logged In: 17-Apr-19 19:09 Work Order Comments: C-1910 received at 1.0°C Containers Intact Y Containers Properly Preserved Y Proper Containers Received Y All Samples in PreLog Received Y COC/Labels Agree Y Custody Seals Intact Y Volatile Containers Preserved Y Volatile Containers Headspace Free Y Aqueous Samples Checked for Residual Cl N Received On Ice Y Temperature Corrected Y Page 1 of 1 GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Pagel of 3 Project Name: White Street Landfill — Phase I, II & III SW Project Reference Number 1668421.105 Sampling Event Date: April 7-15, 2019 Review Date: May 2, 2019 Report A CC05275,CCO6163 Signature: QA/QC Sign Off.' 4 GOLDER Date: .5 -Z-Lr Date: 5^ -2-tf Initials: AM Person(s) performing the review are to initial each item on this form as acknowledgement of data acceptance, or as acknowledgement of a review issue. In the case of the latter, a brief explanation should follow the applicable item. Golder Associates Inc. has reviewed the laboratory certificates of analysis, chain -of -custody form, and laboratory provided sample group quality assurance and quality control data for the above referenced sample group to identify potential bias or inaccuracy, in general accordance with the following United States Environmental Protection Agency documents: Region III Modifications to Functional Guidelines for Organic Data Review Multi -Media, Multi -Concentration, September 1994; Region III Modifications to the Laboratory Data Validation Functional Guidelines for Evaluating Inorganic Analyses, April 1993; and Laboratory Data Validation Functional Guidelines for Evaluating Inorganic Analyses, July 1998. COMPLIANCE ANALYTE LIST(S) (check all that apply) NC Closed Facility/C & D List NC Appendix I NC Appendix I + Detects NC Appendix II NC Subtitle D Leachate List Other: 1.0 CHAIN OF CUSTODY (COC) REVIEW AM COC was properly signed by all parties. AM Correct project name and number are on the form. AM Sample receipt condition at laboratory was acceptable. AM Each sample and blank submitted for analysis appears in the report. 2.0 SAMPLE HOLDING TIMES AM Holding times for extraction and/or analysis were met for each analytical Method (see below for reference). GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL O D LABORATORY DATA REVIEW E R Page 2 of 3 4 Review Criteria Method Anal es Holding Time SW-846 Method 8260 and 8011 VOCs 14 da s SW-846 Methods 8270, 8080, 8081, 8082, and 8151 SVOCs, PCBs, pesticides and herbicides 7 days for extraction, 40 days from extraction for analysis SW-846 Methods 6000 and 7000 Series Metals except mercury 6 months (no temperature requirements) SW-846 Method 7470 Mercury 28 days SW-846 Method 376.1 Sulfide 7 days SW-846 Method 9010 Cyanide 14 days EPA Method 300 Nitrate/Sulfate 48 hours/28 days EPA Method 405.1 BOD 48 hours EPA Method 410.4 COD 28 days EPA Method 365.4 Phosphorous 28 days 3.0 LABORATORY QUALITY CONTROL REVIEW AM Laboratory analyzed at least one internal blank for each method, where applicable. AM Laboratory blank is interference -free. AM Surrogate recoveries are provided for each analytical method, where applicable. AM Surrogate recoveries for each method are within the acceptable limits (i.e., at least 50% of the surrogates were within range). AM MS/MSD/LCS data results are provided for each analytical method. AM MS/MSD/LCS recoveries for each method are within the acceptable limits (i.e., at least 1 of the 3 were within range). 4.0 ANALYTE LISTS/METHODS AM The proper number of constituents are present for each analyte list as identified above (including detects where applicable). AM Proper EPA SW-846 analytical methods were used for analysis. 6.0 DATA REPORTING AM All analytical reporting associated with the event was performed by the contracted lab. AM Trip, field and/or equipment, and laboratory blank results have all been reported. All detects for blanks are listed below by constituent. All laboratory method blanks, if any, have been 'flagged' with a `B' where detected in other samples as appropriate and a laboratory narrative was provided. If the sample was flagged by the laboratory and is not within 5X of the concentration in the blank (or 10X for commonly detected laboratory contaminants -acetone, methylene chloride and phthalates), list below with explanation if flags should be removed. If flags need to be added for samples, also list below. GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL GOLDEP LABORATORY DATA REVIEW Page 3 of 3 ➢ Methylene chloride detected in trip blank at 0.73 ug/L (J) AM It is clear from the laboratory report that samples have or have not been diluted during analysis, and if the samples have been diluted, the result is reported as a multiple of the dilution (e.g., a sample diluted 1 Ox resulting in an analytical detection of 1.0 should be reported as 10). Those that have been diluted are listed below with the dilution factor. ➢ Antimony and thallium by 2x (all samples) AM The report provides the reporting limit for each constituent. AM The results were reported at or below their proper reporting limits (e.g., PQLs). Those that are not reported correctly are listed below (by constituent) with the proper reporting limit listed beside them. State if the reporting limit error is due to dilutions. AM No inorganic or organic constituents were reported above their respective INC 2L Drinking Water Standards or Groundwater Protection Standards (GPS) in wells or field/equipment/trip blanks or above applicable Surface Water Standards for surface water points. ➢ Copper (Chronic = 2.7 ug/L) • SW-1 @ 3.44 J ug/L - US • SW-2 @ 5.44 J ug/L - US • SW-3 @ 3.66 J ug/L - US • SW-4 @ 5.11 J ug/L - DS ➢ Copper (Acute = 3.6 ug/L) • SW-2 @ 5.44 J ug/L - US • SW-3 @ 3.66 J ug/L - US • SW-4 @ 5.11 J ug/L - DS ➢ Lead (Chronic = 0.54 u4/L) • SW-1 @ 3.91 J ug/L - US AM No quantifiable inorganic or organic constituents were detected in a well or surface water point at concentrations outside of their historical range (more than 5X previous concentrations or first-time detections). AM Other report issues/Communications with laboratory/etc.: APPENDIX C EPA Natural Attenuation Screening Protocol Forms and BIOCHLOR Monitored Natural Attenuation Analysis for April 2019 Sampling Event Natural Attenuation Screening Protocol h&rPratavan score Score: 9 Scrofft:o EMofTaDie n.;rlFrli IrytA avid n P inr an+ernhlr. bin 1a rm P1 nn' F chMnnalE f rrrlanrs 0105 bmitm ev-donS:n of ctiorinuted organir, B to 14 The 1.tmnFM. the UGPA Fra-1(U5EPA, 1SM) Theslhi¢.Lo Proeha w reglalry -.gnz— dcajctc aOunco fti 15 to 20 :;u-ri-iJrr f•,I c•rdrli-L- -: L,k•Jvaraawtlwl'ul dJr,inwlyd wgum•s >20 Concentration in •IMdU[e EdA hWjl°Wn Points Analysis Most Contam. Zone Interpretation Pus No Awarded Qtgen' c0 5 niglL Tolerated, suppresses the reductive pathway at higher concentrations 0 > 5mgJL Not tolerated; however. VC may be oxidized aerobically -3 Nitrate <1 mg/L At higher concentrations may compete with reductive pathway x 2 Iron 11' 1 mglL Reductive pathway passible. VC may be oxidized under Fellllrreducing conditions 0 Sulfate' =20 mg/L A higher concentrations may compete Mh reductive pathway 2 Sulfide' y 1 mg1L Reductive pathway possible 0 Methane' 7Q 5 mg1L lJihmate reductive daughter product, VC Accumulates 0 Oxidation Reduction Potential` (GRP) 50 millivolts tmV) Reductive pathway possible I <-100mV Reductive pathway likely 0 pH" 5 < pH < 9 Optimal range for reductive pathway + 0 TOC >20 mg1L Carbon and energy source: drives deck orination; can be natural or anthropogenlo ' 2 Temperature` 20uC At T 520'C biochemical process is accelerated U 0 Carbon dioxide 2% background LJltimate oxidative daughter product _ 0 Alkalinity >2x background Results from interaction of carbon dioxide with aquifer minerals 1 Chloride` >2x background Daughter product or organic chlorine - _ Hydrogen >1 nM Reductive pathway possible. VC may accumulate 0 Volatile Fatty Acids y0.1 mull- Intermediates resulting from biodegradation of aromatic compounds; carbon and en erg y source i. 6TEX >0.1 mg1L CaJtDn and energy source; drives dechlorination 0 PCE' Material released 0 TCE' Daughter product of PC `'' 0 ❑CE' Daughter product of TCE. If cis is greater than 80% of total DC d is likely a daughter rcdurt of TCE'; 1,1-DCE can be a them. reaction product of TCA n it Vc' Daughter product of DCE" 0 1,1,1- Tnchloroethane" Materiat released - a OCA Daughter product of TCA under reducing conditions - 0 Carbon Tetrachloride Material released 0 Chloroethana' Daughter product of DCA or VC under reducing conditions 0 Ethene/Ethane >0.01 mglL ❑aughter product of VCIethene 0 >0.1 mg1L Daughter product of VClethene 0 Chloroform Daughter product of Carbon Tetrachloride 0 Qichioromethane Daughter product of Chloroform + 0 ' reglured arlafysis al Points awarded a1y it it r be �Lowh that the compound 1s a datmr, hrer pradLio (i. e._ tier a ccadihiew of the murm NAPL)- DATE: 08/05/19 4 G0 L D E R Project #: 1668421 Prepared By: ESV Reviewed By: DYR SCORE Uv—r Title: II-1 MNA SCREENING April 2019 MNA Evaluation White Street Landfill, Permit No. 41-03 pendixl C-1 Natural Attenuation Interpretation Score Screening Inadpgilateavidr+m&wan-�arvii.r,ir,ar:Ir.;.i.A.-in'r,i nr�nnettrlrrrlan•- --s 0105 Protocol UWud woonSo firumg MolPDlod[.3radelion' orcrlgrinoled oigarliw a to 14 *Orr: 9 the foi�wing �srare��rrammeu aPnnrc:oorl fu5- A. 195Nt AdoWato a idenro fv�r on+ erOhla Wdegrad arn; n' nPcnwn died �jrga-c, 15 to 20 - srm- .xms.„�„n n.n= -• n,.n m r�n��F.inry •pnrtr.n:e 5crall to End of Tad/e 'alrorl-J v4ldN?r;� r-i l e' r[1Lr Lb••: L-,e J�]I uowli WI Iul Plwi n bind vljwirl >20 Concentration In 'ieJec6rE da[NAiinHdn PoihtS Analysis Most Contam. Zone lnterpreTall0h yes _No A WaM60 Oxygen" c0 5 mglL Tolerated, suppresses the reductive pathway at higher a 0 concentrations > 5mgIL Not tolerated, however, VC may he oxidized aerobically 11 Nitrate' =1 mglL At higher concentrations may compete with reductive _ 2 pathway Iron II" >1 mglL Reductive pathway possible, VC may be oxidized under 0 Fe[lll�reducqng conditions Sulfate' c20 mglL At higher concentrations may compete with reductive D pathway Sulide` >1 mglL Reductive pathway possible 0 Methane' >0.5mg/L Ultimate reductive daughter product,VCAccurn ulates 0 Oxidation <50 millivolts (mV) Reductive pathway possible 0 Reduction c-100mV Reductive pathway likely ,. D Potential` (ORP) PH` 5 t pH t 9 Optimal range for reductive pathway 0 TOC >20 mg1L Carbon and energy source; drives dechlorination. can be 0 natural or anthropagenic C Temperature" >20'C At T >20'C hiochem icai process is accelerated 0 Carbon Dioxide >2x hackgrourld Ultimate oxidative daughter product 4_1 0 Allcalinity >2x background Results from interaction of carbon dioxide with aquifer 1 minerals Chloride" >2x background Daughter product of organic chlorine 2 Hydrogen >i nM Reductive pathway possible. VC mayaccumulate _ 0 Volatile Fatty Acids >0.1 mg1L Intermediates resulting from biodegradation of aromatic ❑ compounds; carbon and energy source BTEX' >0.1 mg1L Carbon and energy source; drives dechlorination n PCE' Material released 0 TCE" Daughter product of PCE xf 0 ACE' Daughter product of TCE. If cls Is greater than 80% of total DC It is likely a daughter A. 2 product of TCE; 1,1-DCE can he a diem. reaction product of TCA VC` Daughter product cf DCE" r 0 1,1,1- Material released U Trichloroethane' ❑CA ❑aughter product of TCA under reducing conditions 2 Carbon Material released 0 Tetrachloride Chloroethane' Daughter product of DCA or VC under reducing conditions D Ethene/Ethane >0.01 moll- Daughter product of VClethene r 0 >0.1 moll- Daughter product of VClethene 0 Chloroform Daughter product of Carboo Tetrachloride 0 Dichloromethane Daughter product of Chloroform 0 r i r required analysis ar Points awarded only K it rap be khown that the rmupound iaa daugliter produn 0.e, not a cm rmtuest oftheR iffm NAPT.I. wW r* DATE: 08/05/19 G� L D E � Project #: 1668421 Prepared By: ESV SCORE lirxi•I Title: II-9 MNA SCREENING April 2019 MNA Evaluation White Street Landfill, Permit No. 41-03 pendixl C-2 Reviewed By: DYR Natural Attenuation Screening Protocol Interpretation Score li Score: 14 Sefoll to End of Table Ina da luat±ar 7a•1•:e f-]r as a-r•:!•I- 7i i•cl3 J'fi-Ja6i-ll• Y.:11-)Tlat4.J :!•ionic_ 0 to Gmllad nldpnrc- fordr-q+�lcblodC.gFaddhW (it[hlonreted urgNnlQ5 6 to 14 I qn lullo.ni.l iu l.10u l• lI..I i;K-PA MOga lllJ,g[t'h 1% ri ll... �.•.ri� ro.n- li�.e ru •enJ.l ur. "•'• Ade yutltu tlwld� w! IoI amw ubiL btud VHd Ltloil W r rid ul 11 l[JIti �!. wgur wl 15 to 20 .11m lvi a io-nr.P frrr an+ rob lr. hincbenrMahm, of rh kmnata rl nmanln >20 Concentration in •maw. °� `I�` "' I" Points Analysis Mad Contain Zone tnterpretatlon Yes No AWal11e6 Oxygen' z0.5 mglL Tolerated, suppresses the reductive pathway at higher concentrations e, 0 3 > 6mgJL Not tolerated: however. VC may be oxidized aerobically ❑ Nitrate' r1 mgfL At higher concentrations may compete with reductive pathway A 2 Iron II" >1 mg)L Reductive pathway possible; VC may be oxidized under Fe(Itl)-reducing conditions D Sulfate e20 mglt At higher concentrations may compete with reductive athwa 0 Sulfide` 71 mg1L Reductive pathway possible 0 Methane' ;�0.5 mglL Ultimate reductive daughter product. VC Accumuiales 0 Oxidation Reduction Potential' (ORP1 �50 millivolts ImV) Reductive pathway possihie 0 = i00mV Reductive pathway likely , 0 PH` 5 t pH C 9 Optimal range for reductive pathway D TOC >20 rng)L Carbon and energy source; drives dechlorinaiion: can be natural oranthroo enlc s 0 Temperature` >20"C At T Y2(fC biochemical process is accelerated ❑ Carbon Dioxide >2x background Ultimate oxidative daughter product 0 Alkalinity 52X background Results from interaction of carbon dioXide with aquifer minerals T Chloride' %2x background Daughter product of organic chiorine 2 Hydrogen >1 nM Reductive pathway possible, VC may accumulate 0 Volatile Fatty Acids mg1L Intermediates resulting fmm biodegradation ofaromatic compounds; carbon and energy source 0 STEX" >0.1 mg1L Carbon and energy source; drives dechlorinahon 0 PCE' Material released 0 TCE' Daughter product of PC «. 0 DCE` Daughter product of TCE. If as is greater than 80% of trial DC it is likely a daughter product of TCE�; 1,1-DCE can he a chem. reaction product of TCA •. 2 VC' Daughier product of DCE'` 2 Trichloroethane' Material released 0 DCA Daughter product of TCA under reducing conditions Carbon Tetrachloride Material released 0 Chloroethane' Daughter product of DCA or VC under reducing conditions 0 EthenefEthane >0.01 mg1L Daughter product of Meth ene 0 >0.1 mg1L Daughter product of Meth Lin e ❑ Chloroform Daughter product of Carbon Tetrachloride 0 Dichloromethane Daughter product of Chloroform 0 . mfliared iprWymm al points awarded only if it can he ahax thzt the cempovnd is a daughter pro dud (I.e., w>t . emlAilw-,d of Ilrc Bann r* KrAF'I.). End ui'Fomi DATE: 08/05/19 G� L D E � Project #: 1668421 Prepared By: ESV Title: SMW-3 MNA SCREENING April 2019 MNA Evaluation White Street Landfill, Permit No. 41-03 pendixl C-3 Reviewed By: DYR BIOCHLOR Natural Attenuation Decision Support System White St LF Version 2.2 Phase II Excel '97 Run Name TYPE OF CHLORINATED SOLVENT: Ethenes 5. GENERAL Ethanes Simulation Time* Modeled Area Width* (yr) (ft) ~ L 1. ADVECTION Seepage Velocity* Vs 326.0 (ft/yr) Modeled Area Length* Hfl (ft) or Zone 1 Length* (ft) Hydraulic Conductivity K 2.6E-04 (cm/sec) Zone 2 Length* 0 (ft) Zone 2= Hydraulic Gradient i 0.023146 (f Effective Porositv n 0.02 (- Alpha x* 1 47.5 1 (ft) Calc. (Alpha y) / (Alpha x)* 1 0.1 (-) (Alpha z) / (Alpha x)* 1.E-99 (-) 3. ADSORPTION Retardation Factor* R or Soil Bulk Density, rho 1.7 (kg/L) FractionOrganicCarbon, foc 1.0E 4 (-) Partition Coefficient Koc 'A PCE 426 (L/kg) 4.62 (-) TCE 130 (L/kg) 2.11 (-) DCE 125 (L/kg) 2.06 (-) VC 30 (L/kg) 1.25 (-) ETH 302 (L/kg) 3.57 (-) Common R (used in model)* = 2.11 4. BIOTRANSFORMATION -1st Order Decay Coefficient* Zone 1 .� �, (1/yr) half-life (yrs) Yield PCE _. TCE 0.990 0.70 0.79 TCE - DCE 0.900 0.77 0.74 DCE VC 1.733 0.40 0.64 VC ETH 2.567 0.27 0.45 Zone 2 � X (1/yr) half-life (yrs) PCE TCE 0.000 TCE DCE 0.000 HELP DCE VC 0.000 VC ETH 0.000 ' 6. SOURCE DATA TYPE: Continuous Source Options Single Planar Source Thickness in Sat. Zone* 25 (ft) Y1 Width" (ft) r 400 ks* Conc. (mg/L)* C1 (1/yr) PCE .02 0 TCE .02 0 DCE .029 0 VC .012 0 / ETH 0.0015 0 PCE Conc. (mg/L) TCE Conc. (mg/L) DCE Conc. (mg/L) VC Conc. (mg/L) ETH Conc. (mg/L) Distance from Source (ft) Date Data Collected 8. CHOOSE TYPE OF OU RUN CENTERLINE ISON 2019 Data Input Instructions: 115 1. Enter value directly....or 4- or 2. Calculate by filling in gray 0.02 cells. Press Enter, then C (To restore formulas, hit 'Restore Formulas" button ) Variable* Data used directly in model. BiotransformatiO4 Natural Attenuation is Occurring - Vertical Plane Source: Determine Source Well / Location and Input Solvent Concentrations View of Plume Looking Down Observed Centerline Conc. at Monitoring Wells SEE: Help Restore I RESET RUN ARRAY SEE OUTPUT Paste DISSOLVED CHLORINATES) SOLVENT CONCENTRATIONS ALONG PLU ME CENTERLINE [mg71-1 at Z=O —No Degradabw Prue.!— 10 C<—Uecar a PWd0mr-8rte _ 1 000 See PCE 1j o° See ICE E ❑IDD- c ❑ see oeE — 400 D.OlO - —+ See VC q yD IOD 150 200 z5n 300 5u O 450 u Scc ETH � ex1 Distance From Source (N.� Time: Prepare AnInn2nor. R Input ta To AM To Array DISSOLVED CHLORINATED SOLVENT CONCENTRATIONS ALONG PLUME CENTERLINE Im{I+L) at Z=O DrgrawEorvpraalrcnm—sequenoar+s+order[xeay s nelcnapkemsroe ION r See PCE m See TCE E 01D0 = Scc DCE a aO10 eon m SO 100 150 200 250 300 350 4O0 450 See VC u U OODI ■ 5cc ETH Distance From Source {ft.) Tlrnc Prepare Animatlen `—"." R tur, to T. MI To Wray Lou �Lnea pLd DISSOLVED CHLORINATED SOLVENT CONCENTRATIONS ALONG PLUME CENTERLINE {mg1LI at 2=0 —No Dcgrad.bwPma. bG� 1.1 Qv"0—y v Peidfla= No ew 1.000 - Scc PCE See TCE OiDD c n 400 See DCE -- " �--— — - See VC O `A tfc 15O 200 250 Soo 350 400 4ri0 = See ETH U 0.001 - Distance From Source (It.) Time: Prepare Animatlon Realm toHput To AN To Artay Log C�Lmear D ISE D LV ED CHLORINATED SO LVENT CONCENTRATIO NS ALONG P LU ME C ENTER LINE {mg7LI 8t Z=O —No Degradahon'Pmd.caan 1 W Ctaer Decay a Fein O= awn 5Re _ 1 300 See PCE 1j o See TCE E „1x . c ❑ see oeE u.o1O o a.ADO. Sce VC o SO so O t5D zoo zsua o oC x1 a See ETH U Diatanca From Source (ft.) ram.: 1 Ybars ReWrn to Prepare Anlmatlon I e9 �7t nrar Input TO AM 7o Rrray D ISS C LVED CHLORINATED 50 LV2N-r CONCRNTRAT70 Ns ALONG PLANE CENTERLINE {mWL1 at Y=O —No Degrad.b—T odu:oon iNuerdal IaO d., D coy to r,e•n nQz rmm 5m _ 1 000 Sae PCE See TCE R.100 - � See OCE ❑-01❑ - - - - See VC 41 C '00 150 ax 350 400 450 o ❑ DG1 AA 09 tE9 469 E�i6 EBA�EB BBB SOD Scc ETH O Distance From Source (It.) TImar Prepare An lmaNan I® Rim—iA 'to AR To A—v ,,> GOLDER BIOCHLOR Natural Attenuation Decision Support System Version 2.2 Excel '97 TYPE OF CHLORINATED SOLVENT: Ethenes Ethanes Seepage Velocity* or Hydraulic Conductivity Hydraulic Gradient Effective Porosity 2. DISPERSION Alpha x* (Alpha y) / (Alpha x)* (Alpha z) / (Alpha x)* Vs 326.0 K 2.6E-04 i 0.02314E n 0.02 5 39 (ft) (-) (-) Calc. U 5. GENERAL U Simulation Time* Modeled Area Width* ft/yr) Modeled Area Length* Zone 1 Length* cm/sec) Zone 2 Length* 3. ADSORPTION Retardation Factor* R or Soil Bulk Density, rho 1.7 (kg/L) FractionOrganicCarbon, foc 1.0E-4 (-) Partition Coefficient Koc :Ik PCE 426 (L/kg) 4.62 (-) TOE 130 (Llkg) 2.11 (-) DOE 125 (L/kg) 2.06 (-) VC 30 (L/kg) 1.25 (-) ETH 302 (L/kg) 3.57 (-) Common R (used in model)* = 2.11 4. BIOTRANSFORMATION -1st Order Decay Coefficient* Zone 1 .� �, (1/yr) half-life (yrs) Yield PCE TOE 0.990 0.70 0.79 TOE DOE 0.900 0.77 0.74 DOE VC 1.733 - 0.40 0.64 VC ETH 2.567 0.27 0.45 Zone 2 (1/yr) half-life (yrs) PCE TOE 0.000 � TOE DOE 0.000 � DOE VC 0.000 VC ETH 0.0 0000 White St LF Phase II Run Name (yr) ~ L (ft) W(ft)(ft) U 0 (ft) Zone 2= U. JUUKI:f= UAIA I YI-'t: uonrinuous Source Options Single Planar Source Thickness in Sat. Zone* 2b (ft) Y1 Width" (ft) 400 Kj Conc. (mg/L)* C1 (1/yr) PCE .02 0 TOE .02 0 DOE .029 0 VC .012 0 / ETH 0.0015 0 Data Input Instructions: 115 1. Enter value directly....or or 2. Calculate by filling in gray 0.02 cells. Press Enter, then - c (To restore formulas, hit "Restore Formulas" button ) Variable* Data used directly in model. BiotransformatiO4 Natural Attenuation is Occurrina - Vertical Plane Source: Determine Source Well / Location and Input Solvent Concentrations View of Plume Looking Down Observed Centerline Conc. at Monitoring Wells 7. FIELD DATA FOR COMPARISON PCE Conc. (mg/L) .0 .0 TOE Conc. (mg/L) .0 .0 DOE Conc. (mg/L) .001 .0 VC Conc. (mg/L) 0.0 .0 ETH Conc. (mg/L) 0.0 .0 Distance f on', Source (ft) 100 325 Date Data Collected 2019 8. CHOOSE TYPE OF OUTPUT TO SEE: Help Restore RESET RUN CENTERLINE RUN ARRAY ISEE70UTPUTI Paste DISSOLVED CHLORINATED 50 LVENT C0NCENTRATI0 NS ALONG P LI1 UE C ENTERLINE{r 01-1 At 2=0 Dls lance from Source PCE 0 Op a0 :27 166 2op ID 1&0 320 36D 'too No De,,a,lA , - etc c :.: ::a? : .-D-0--1j >' �_a n e1. Slpiransromutlon 3C72 C7 •. 1 1i 7.7'2 WO O.W9 Itfl COC NlonituNn Well Lccallons tt ?2S FISId Data f[am 51Te � Gii: I I cic —Na L] gred.t-v"odi_par 19 C*uar D—, r FMId I]am hom Sde 1 DOO Sce PCE J_ 0° See TCE E olon See DCE 400 p o u19 - - scc vc C b C 50 100 150 200 250 900 950 u C see ETH U ❑W1 Distance From Source lR.] Time: Years 71 Return to Preps re Mimation L �7L,nnr pipet To AN To Array ❑I9SQLVEI) CHLORINATEO 50 LVENT CONCENTRATIo Ns ALONG PLUME CENTERLINE {mg+L] al 2=0 ii4l:1 Maniforilr Well Lacallnns R 1 L• FINd Data from Sk 0.D:1C 0 WO —Nn Deprede6NVP duc6dn .�Sepuerr2lfazCxtlerOxay r Feld Gala from Srte 1 090 See PCE _ � E Dice - See TCE c n sea DCE - 400 D"010 '--Pt $ee VC y 0 6D 100 15D 2W 150 300 150 400 aSO u 5-ETH i] ❑ O01 Distance From Source (it.) Tom: Prepare Rnimadan L® R � Fnnrlo Tv AI Tv An" cg DISSOLVED CHLORINATED SOLVENT CONCENTRATONS ALONG PLUME CENTERLINE lmglL) at Zz0 Dis}BaCB Trom Saurte DCE ❑ 1 40 1 80 1 120 1 160 200 210 2S0 32D 3HO AW —Na 0.pavauuNRutlucCon "nuc J.I TV Odcr D. + ■ F eV Data rro,e Sac 1 000 See PCE 0 f00 5cc TCE c 490 `-lee DCE solo sec VC m See ETH LJ owl Distance From Source (fi j Time- Prepare Amuratlon x® R Input11 To All To Array OISSOLVEO CHLORINATED SOLVENT CONCENTRATIONS ALONG PLUME CENTERLINE ImglLj at Z=0 —Ng DOWWAUNPaOWA01 --.Sugwllil ret0d. Decay ■ Fq d Dx ham S!e _ 1.000 $ee PCE rn Scc TCE 0 1p0 e see SCE O.U10 D-' 5cc VC D 50 100 150 00. 71 SOO :.1 5- ETH [J 0.001 Distance Frain Source (fl.) Tome: Preparo Animation ® R �Wrto To Ail To Mar HLag L�Lin°ar DISSOLVED CHLORINATED SOLVENT CONCENTRATIONS ALONG PLUME CENTERLINE ImglL} at Za0 —M DegadetlaNPmduCOanr•n;ial tsT order rkc-+r a Fk1d qaW hem 5ie 1 DOD - See PCE � See TCE 0100 - e See ore O ` 0.010 Sec VC D i9D 2,yj :p0 95ry cp0 4W V0DOT M �gs-y 400 Sce ETH Distance From Source (fl.) T"m e Return to Preppie Rnimatlon Log �>Ur—r Ingn To AI[ f o Rrray J GOLDER BIOCHLOR Natural Attenuation Decision Support System Version 2.2 Excel '97 TYPE OF CHLORINATED SOLVENT: Ethenes Ethanes 1. ADVECTION Seepage Velocity* Vs 326.0 (ft/yr) or Hydraulic Conductivity K 2.6E-04 (cm/sec) Hydraulic Gradient i 0.023146 (ft/ft) Effective Porosity n 0.02 (-) 2. DISPERSION Alpha x* 47.5 (ft) Calc. (Alpha y) / (Alpha x)* 0.1 (-) (Alpha z) / (Alpha x)* 1.E-99 (-) 3. ADSORPTION Retardation Factor* R or Soil Bulk Density, rho 1.7 (kg/L) FractionOrganicCarbon, foc 1.0E-4 (-) Partition Coefficient Koc 'A PCE 426 (L/kg) 4.62 (-) TCE 130 (L/kg) 2.11 (-) DCE 125 (L/kg) 2.06 (-) VC 30 (L/kg) 1.25 (-) ETH 302 (L/kg) 3.57 (-) Common R (used in model)* = 2.11 4. BIOTRANSFORMATION -1st Order Decay Coefficient* Zone 1 .� �. (1/yr) half-life (yrs) Yield PCE TCE 0.90.70 0.79 TCE DCE 0.900 0.77 0.74 DCE VC 1.733 F 0.40 0.64 VC ETH 2.567 f 0.27 0.45 Zone 2 � �, (1/yr) half-life (yrs) PCE TCE 0.000 TCE DCE 0.000 DCE VC 0.000 VC ETH 0.000 5. GENERAL Simulation Time* Modeled Area Width* Modeled Area Length* Zone 1 Length* Zone 2 Length* White St LF Phase II Run Name (yr) * L (ft) W N (ft)(ft) 0 (ft) Zone 2= 6. 50URCE DATA I YFIE: Continuous Source Options Single Planar Source Thickness in Sat. Zone* 25 (ft) Y1 Width* (ft) 900 ks. Conc. (mg/L)* C1 (1/yr) PCE .02 0 TCE .02 0 DCE .029 0 VC .012 0 / ETH 0.0015 0 7. FIELD DATA FOR COMPARISON PCE Conc. (mg/L) .0 .0 TCE Conc. (mg/L) .0 .0 DCE Conc. (mg/L) .001 .014 VC Conc. (mg/L) 0.0 .001 ETH Conc. (mg/L) 0.0 .0 0i�;il�rice 41onn -:ounce (11% 250 450 Date Data Collected 1 2019 8. CHOOSE TYPE OF OUTPUT TO SEE: Data Input Instructions: 115 1. Entervalue directly....or + " 2. Calculate by filling in gray 0.02 cells. Press Enter, then , C (To restore formulas, hit "Restore Formulas" button ) Variable* Data used directly in model. Test if BiotransformatiO4 Natural Attenuation is Occurrina - Vertical Plane Source: Determine Source Well / Location and Input Solvent Concentrations View of Plume Looking Down Observed Centerline Conc. at Monitoring Wells Help Restore RESET RUN CENTERLINE RUN ARRAY SEE OUTPUT PastejFN DISSOLVED CHLORINATED SO LVENT CONCENTRATIO NS ALONG P LII rAE C ENTERLINE{mylLl at2=0 Distance from Source Ittl PCE lip QQe NfonitoNn Well Locallons tt ay7 Fiald wirams"I c IP,It I J Lit ii —No 1st Crue. Decay . Feld Dem horn 5Re 1 Ow Sce PCE J See TCE E IV 10Q C Sce DCE v — ADD ❑ 010 - - l- sce vc u C Sce ETH U ❑W1 - Oistance From Source (ft.) Time: Edl9 Return 10 Preps re Fin imation LSLmLar Input To AN TnAmy tlA D15SO L VEO CI{LOR INATED 50 L VENT CO NCENT•RATI ON 5 ALONG PLl1 NE CENTERLINE Iingfo at 7- Distance from Source TCE c Qo a 25O 30Q 35C noC a5a 6Qc Nn De 1r 1.410n .. .u.. 702C ❑b : .n2,y rp❑20 —No DtW.d l'onrPmtluCl GuwMlal lot Omer Qecay u :kttl Qom fmm Sao _ too() See PCE � See TCE Q too - C See VICE a - 600 ,SIC 0.C10 _ _ Sa VC m 0 S00 20a 500 40D 5C0 iMo u See ETry � DOOr Distance From Source (ft.) .Tina• Prepare Animation Return to To All Input To Awry Log <�*Linnr j OISSOL VED CHLORINATED SOLVENT CONCENTRATIONS ALONG PLLNdE CENTERLINE Iing+L)dt Z--O Distance from Source DCE 0 50 100 50 200 25O 300 350 Affi AW 500 NoDc radstlon �+:Y 0i4? GP25 u.023 7U25 U.42N 129 gloaansfallnatlon 0 C2NC ❑ 02S 0 021 GLAD 0.0115 1 O U14 C Q12 l' 1 ❑ MG !:Ot19 O. DOs .�riv Dig vnl-OWP .b- .�Sanua�u:l tV Oder p y ■ FkTd pats If- _ryc i see PCE 0 i00 Sm TCE Sce ME 9 600 �QtD se. VC d C Sec ETH 0❑wl DiS tan" From SO urce [ff.] T m-. Prepare Anlmatlon L® R it— to To All To Array Ot5SO LVECI CHLORINATED 5O LVENT CO NCEN T PATIO N5 ALONG PLUME GEN TER LINE l+ngfLj at Z=9 astanr:e from s— (ft) VG 0 50 :X1 150 2CU 250 SCO 350 400 450 5'dC No DovraJativn : C12 0 •J12 I I .., .... ., _ Mvnitonn Well Locativrls R E Fleld Dam from sR.1 0 OK 0 am —ND D9.apr40NPwU.ven it Oidb, Decay ■ cpld Da Imm RAv i D70 see PCE rn See TCE E 0 eQG 0 see DCE 0.010 In See VC 0 tOC 7On ] 500 � Sea ETH o 0.001 tr Distance FFOM SOLIICe (ff.) ran- Prepare Animation ® R MWrto To All To Amy Ll-�Log C�Lin— DISSOLVED CHLORINATED SOLVENT CONCENTRATIONS ALONG PLUN1E CENTERLINE ImglL} at Zs0 ----M cegradaaeNPraeucfian +.Seaerpal eat order C." . PK%Onm rron 51e t Wo - see PCE 2 � See TCE � ns00- � Scc OCE 0 0010 D - 20O SW dOQ SCQ gOQ Sce VC V 0.001 III Ytie iia man � � Sun 5" ETH Distance from Source (ft.) Tine. Firs Renfro PTe pa Fe Anim[Log �7Linea ation Input rra To All no Ry J GOLDER (� GOLDER golder.com