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Home My WebLink About4103_Guilford_WhiteStreet_MSWLF_PhaseI_GW_FID1339430_20190814[ENR 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 2B 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 City of Greensboro Field Operations Department Contact for questions about data formatting. Include data preparer's name, telephone number and E-mail address: Name: David Y. Reedy 11, PG 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 1 2503 White St, Greensboro, NC 27405 41-03 .1600 April 8 - 15, 2019 Environmental Status: (Check all that apply) ❑ Initial/Background Monitoring ❑X Detection Monitoring Assessment Monitoring ❑ Corrective Action 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 Methane gas monitoring data Corrective action data (specify) 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 2B surface water standard or NC Solid Waste GWPS and preliminary analysis of the cause and significance of any concentration. El 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 Senior Hydrogeologist (336) 852-4903 Facility R_ ya&eRfa;ive Name LRr4^t) Title (Area Code) Telephone Number Signature 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 Date Affix NC Licensed/ Professional Geologist Seal GOLDER REPORT First Semi -Annual 2019 Water Quality Monitoring Report White Street Landfill - Phase 1, 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 14, 2019 August 14, 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 14, 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, semi-annual compliance monitoring event for Phase I at the White Street Landfill. Barium was detected at downgradient well 1-1 during this event, as it has been historically. No other Resource Conservation and Recovery Act (RCRA) metals were detected above their respective Practical Quantitation Limits (PQLs) and groundwater standards during the April 2019 event. During this event, benzene was detected above the PQL and NC 2L standard in downgradient well 1-1 as well but has been detected in previous events. The constituent 1,4-dioxane was detected at 1-1, 1-2, 1-3, and 1-4 above the PQL and NC 2L as it was during the second semi-annual sampling event for 2018. However, this constituent is not part of the permitted monitoring requirements for the facility and was analyzed per the May 29, 2018, request of the North Carolina (NC) Department of Environmental Quality (DEQ). Copper was reported at estimated concentrations below the PQL, but above the chronic and/or acute surface water standards in the samples from upstream monitoring points SW-1, SW-2, SW-3, and downstream monitoring points SW-4 and SW-5. Lead was also detected at an estimated concentration below the PQL at upstream monitoring point SW-1 as it has been previously above the chronic surface water standard. 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 and no further action is warranted. No NC other Appendix I constituents were reported above their respective PQLs and applicable surface water standards during the April 2019 event. Based on these results, the City of Greensboro will continue groundwater monitoring in accordance with the requirements outlined in NCSWMR 0.600 Rules. The next semi-annual monitoring event is tentatively scheduled for October 2019. 4 GOLDER August 14, 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..........................................................................................................................2 2.0 FIELD PROGRAM, MONITORING RESULTS, AND DISCUSSION.............................................................3 2.1 Visual Inspection Program...................................................................................................................3 2.2 Well Network and Groundwater Elevation Measurements..................................................................3 2.3 April 2019 Monitoring Event.................................................................................................................3 2.4 Laboratory Analysis Program...............................................................................................................4 3.0 LABORATORY AND FIELD QA/QC..............................................................................................................4 4.0 DATA EVALUATION......................................................................................................................................4 4.1 North Carolina Groundwater and Surface Water Quality Standard Comparisons...............................5 5.0 CONCLUSIONS..............................................................................................................................................5 6.0 REFERENCES................................................................................................................................................5 TABLES Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Table 7 FIGURES Summary of Historical Groundwater Elevation Data Summary of Estimated Horizontal Flow Velocities Summary of Well Construction Information Summary of Groundwater Monitoring Results, Detected Constituents Summary of Groundwater Field Parameters Summary of Surface Water Monitoring Results, Detected Constituents Summary of Surface Water Field Parameters GOLDER August 14, 2019 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 4 GOLDER iv August 14, 2019 1668421.105 1.0 INTRODUCTION This report summarizes the monitoring results from the April 8-15, 2019, groundwater and surface water sampling at Phase I of the White Street Landfill in Greensboro, North Carolina (NC). The closed municipal solid waste (MSW) landfill is voluntarily monitored in accordance with Title 15A of the North Carolina Administrative Code (NCAC) Subchapter 13B. Section 0.600. The facility is located in central Guilford County and is comprised of a closed, unlined MSW facility (Phase 1), an active unlined construction and demolition debris (C&D) over MSW facility (Phase 11), an active Subtitle D MSW facility (Phase III), and an active Type I compost facility. Phase 11 is currently in Assessment Monitoring and Corrective Action for several detected volatile organic constituents (VOCs) and inorganic constituents that exceed their respective groundwater standards. Phase III is in Detection Monitoring. 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 II and Phase III facilities are submitted under separate cover. 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 I landfill is located southwest of the active Phase II 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 Groundwater monitoring at the facility was initiated in 1994. The facility's approved monitoring network for the Phase I landfill is currently comprised of five groundwater monitoring wells, which monitor the uppermost aquifer beneath the facility. Monitoring well MW-13 is an upgradient background well for both the Phase I and the Phase II landfills. Monitoring wells 1-1, 1-2, 1-3, and 1-4 are downgradient compliance wells for the Phase I landfill. The monitoring well locations are shown on Figure 1. Phase I groundwater samples are analyzed for NC Appendix I VOCs and the eight RCRA metals semi-annually. GOLDER August 14, 2019 1668421.105 The facility's monitoring network also includes five surface water monitoring points, which are shared with the Phase II landfill. Surface water monitoring points SW-1, SW-2, and SW-3 are upstream monitoring locations and SW-4 and SW-5 are downstream monitoring locations. Surface water point SW-1 is located along North Buffalo Creek, west of the facility, along Summit Avenue. Surface water point SW-2 is located west of the facility and collected from a tributary to North Buffalo Creek that flows from south to north. 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 point SW-4 is located downstream of the facility 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 off of Rankin Mill Road. The locations of the surface water points are shown on Figure 2. Points SW-1, SW-2, SW-3, and SW-4 are also shared with the Phase III landfill's monitoring network. Surface water samples are analyzed for NC Appendix I list of constituents semi-annually. 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 20 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 2019 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 0.018 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). Although no data is available for the Phase I landfill, it is assumed that the whole facility either share hydrogeologic units or have similar characteristics (S&ME, 2017). 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: Vgw = Ki/ne 4 GOLDER August 14, 2019 1668421.105 where Vgw = 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 237 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. 2.1 Visual Inspection Program In order to detect a potential release at the earliest possible time, the visual inspection program is used at the Phase I 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 compliance monitoring 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 network of groundwater monitoring wells at the Phase I landfill consist of one upgradient well (MW-13) and four downgradient wells (I-1, 1-2, I-3, and 1-4). Available monitoring well construction information for the Phase I 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. 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 GOLDER August 14, 2019 1668421.105 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 in the labeled, laboratory -supplied, pre -preserved sample containers after purging was completed based on stabilization of all 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 away 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 a bailer into the stream from a bridge and then filling the sample containers directly from the bailer. 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, surface water, and leachate samples were submitted to Environmental Conservation Laboratories, Inc. (ENCO) of Cary, NC under chain -of -custody control for analysis. Groundwater samples were analyzed for NC Appendix I VOCs and RCRA metals. The Phase I and Phase II landfills share background monitoring well MW-13 and therefore, MW-13 was analyzed for Appendix I inorganic and VOCs plus mercury. Surface water samples were analyzed for NC Appendix I constituents. Surface water and groundwater samples were also analyzed for 1,4-dioxane per the May 29, 2018, memorandum from the NC Department of Environmental Quality (DEQ). The samples were received at the laboratory in good condition and were properly preserved. 3.0 LABORATORY AND FIELD QA/QC 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. There were no detections of RCRA metals or NC Appendix I constituents in the laboratory method blanks and therefore no data qualification was needed. 4.0 DATA EVALUATION The results of the data evaluations are presented in the following sections. GOLDER August 14, 2019 1668421.105 4.1 North Carolina Groundwater and Surface Water Quality Standard Comparisons As presented in Table 4, barium was detected above the Practical Quantitation Limit (PQL) and NC 2L Standards at 1-1 during this event, as it has been historically. No other Resource Conservation and Recovery Act (RCRA) metals were detected above their respective PQLs and groundwater standards during the April 2019 event. During this event, benzene was detected at a concentration above the PQL and NC 2L standard in the sample from downgradient well 1-1 as it has been historically. The constituent 1,4-dioxane was detected at 1-1, 1-2, 1-3, and 1-4 at concentrations above the PQL and NC 2L as it was during the second semi-annual sampling event for 2018. However, this constituent is not part of the permitted monitoring requirements for the facility and was analyzed per the May 29, 2018, request of the North Carolina (NC) Department of Environmental Quality (DEQ). As shown in Table 6, no NC Appendix I organic 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 and chronic surface water samples at upstream monitoring points SW-2 and SW-3 and downstream monitoring points SW-4 and SW-5 during this event; copper was also detected above the chronic surface water standard at upstream monitoring point SW-1 during this event. Lead was also detected at an estimated concentration below the PQL at upstream monitoring point SW-1 as it has been previously above the chronic surface water standard. Because the concentrations are below their respective PQLs and based on similar concentrations at upstream and downstream samples, and consistent with historical data, the exceedances do not appear to be related to landfill activities and no further action is warranted. 5.0 CONCLUSIONS Based on the results summarized herein, the City of Greensboro will continue monitoring the uppermost aquifer beneath this facility in accordance with the requirements outlined in NCSWMR 0.600. The next sampling event is tentatively scheduled for October 2019. 6.0 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, Greensboro, NC, January 2017, White Street Landfill — Phase I, Permit No. 41-03, Post -Closure Monitoring, September 2016. GOLDER 5 August 14, 2019 1668421.105 Signature Page Golder Associates NC, Inc. David "Dusty" Y. Reedy II, PG Rachel P. Kirkman, PG Senior Hydrogeologist Associate and Senior Consultant Engineering Lic. No. C-2862/Geology Lic. No. C-399 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 greensboro11668421 - greensboro\phase 105 -1st sa wqm 2019\200 deliverables\252 final issued\phase i\1668421.105-001-r-rev0-phase_i.docx 4 GOLDER 6 Tables June 2019 1668421.105 TABLE 1 Summary of Historical Groundwater Elevation Data White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina Well IDs 1-1 1-2 1-3 1-4 MW-13 TOC Elevation 713.75 703.09 707.43 694.94 741.24 (ft AMSL) Date Elev DTW Elev DTW Elev DTW Elev DTW Elev DTW 10/14/98 765.90 10.21 763.28 5.30 750.43 14.22 753.76 6.07 718.61 22.69 03/25/99 759.43 16.68 748.54 20.04 749.06 15.59 750.97 8.86 722.11 19.19 09/22/99 767.74 8.37 752.25 16.33 752.13 12.52 757.61 2.22 721.32 19.98 03/27/00 769.13 6.98 764.37 4.21 752.90 11.75 757.61 2.22 722.49 18.81 09/13/00 767.81 8.30 763.98 4.60 752.22 12.43 757.53 2.30 722.37 18.93 03/12/01 768.57 7.54 763.87 4.71 752.61 12.04 757.61 2.22 721.80 19.50 09/13/01 766.28 9.83 763.65 4.93 751.12 13.53 755.74 4.09 720.98 20.32 03/07/02 767.92 8.19 763.73 4.85 752.40 12.25 757.66 2.17 719.08 22.22 09/18/02 766.67 9.44 763.54 5.04 751.49 13.16 757.69 2.14 722.10 19.20 04/15/03 769.48 6.63 764.20 4.38 753.62 11.03 757.97 1.86 724.59 16.71 10/15/03 767.97 8.14 764.12 4.46 752.22 12.43 757.89 1.94 722.82 18.48 03/24/04 768.55 7.56 763.94 4.64 752.10 12.55 757.70 2.13 722.42 18.88 09/22/14 767.47 8.64 763.80 4.78 751.90 12.75 757.84 1.99 722.56 18.74 05/10/05 766.30 9.81 763.73 4.85 754.89 9.76 757.60 2.23 722.14 19.16 10/11/05 765.57 10.54 763.53 5.05 750.66 13.99 754.33 5.50 719.72 21.58 04/24/06 767.17 8.94 763.92 4.66 751.62 13.03 757.34 2.49 720.25 21.05 10/20/06 766.28 9.83 763.42 5.16 750.83 13.82 756.23 3.60 721.69 19.61 04/10/07 705.35 8.40 698.20 4.89 694.67 12.76 692.55 2.39 721.61 19.63 09/25/07 702.67 11.08 696.89 6.20 691.35 16.08 686.94 8.00 717.41 23.83 05/02/08 707.14 6.61 698.49 4.60 695.80 11.63 692.74 2.20 722.96 18.28 12/05/08 704.22 9.53 698.08 5.01 693.82 13.61 692.36 2.58 -- -- 04/16/09 707.47 6.28 698.43 4.66 695.67 11.76 693.33 1.61 722.87 18.37 10/07/09 703.57 10.18 697.81 5.28 692.93 14.50 689.81 5.13 721.70 19.54 04/28/10 705.36 8.39 698.32 4.77 694.41 13.02 692.80 2.14 -- -- 10/05/10 705.09 8.66 697.84 5.25 693.48 13.95 692.31 2.63 721.13 20.11 05/10/11 706.23 7.52 697.43 5.66 695.15 12.28 693.03 1.91 722.33 18.91 10/06/11 703.25 10.50 697.68 5.41 693.29 14.14 691.55 3.39 719.26 21.98 04/16/12 704.67 9.08 698.39 4.70 694.54 12.89 693.08 1.86 721.34 19.90 10/24/12 703.55 10.20 697.84 5.25 693.11 14.32 692.19 2.75 719.13 22.11 04/24/13 706.10 7.65 698.28 4.81 694.43 13.00 692.94 2.00 721.96 19.28 09/09/13 705.21 8.54 697.94 5.15 693.29 14.14 691.85 3.09 721.66 19.58 04/22/14 707.24 6.51 698.81 4.28 695.49 11.94 693.22 1.72 723.00 18.24 10/01/14 701.58 12.17 696.98 6.11 690.96 16.47 687.74 7.20 717.90 23.34 04/07/15 705.92 7.83 698.06 5.03 694.42 13.01 692.93 2.01 720.64 20.60 10/06/15 705.30 8.45 697.88 5.21 693.42 14.01 692.37 2.57 723.23 18.01 04/18/16 706.34 7.41 698.54 4.55 694.36 13.07 692.79 2.15 721.94 19.30 09/26/16 702.87 10.88 697.68 5.41 691.94 15.49 689.87 5.07 721.03 20.21 04/25/17 707.28 6.47 698.95 4.14 696.82 10.61 693.62 1.32 722.07 19.17 10/16/17 704.53 9.22 697.64 5.45 692.16 15.27 690.25 4.69 720.11 21.13 04/16/18 707.47 6.28 698.88 4.21 695.81 11.62 693.48 1.46 722.80 18.44 10/16/18 704.43 9.32 695.58 7.51 695.64 11.79 692.40 2.54 723.22 18.02 04/08/19 705.26 8.49 696.24 6.85 695.31 12.12 692.07 2.87 723.66 17.58 MEAN 730.15 8.84 723.92 5.68 717.49 13.10 718.13 3.08 721.50 19.77 MAXIMUM 769.48 16.68 764.37 20.04 754.89 16.47 757.97 8.86 724.59 23.83 MINIMUM 701.58 6.28 695.58 4.14 690.96 9.76 686.94 1.32 717.41 16.71 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 6. TOC and Water Elevation Data for dates prior to April 2017 from historical S&ME, Inc. Ground and Surface Water 7. Well TOC survey conducted 2013-2014 by S&ME, Inc. for more accurate elevations. GOLDER 1of1 June 2019 TABLE 2 Summary of Estimated Horizontal Flow Velocities White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina 1668421.105 April 2019 Gradient Gradient Gradient Horizontal Effective Hydraulic Flow Segment Velocity Calculation Direction Segment Length Elevations Gradient Porosity Conductivity (VgW, feet/year) Segment (feet) (i, feet) (ne) (K, cm/sec) (feet) i Northwest 1676 ---------690-------- 0.0179 0.02 2.61 E-04 242 i2 North -Northwest 1744 --------- 620--------- 0.0172 0.02 2.61E-04 232 90 Average Average VFW 0.0176 237 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 3. The effective porosity for saprolite was used in velocity calculations. 4. cm/sec = centimeters per second 4 GOLDER 1 of 1 June 2019 TABLE 3 Summary of Well Construction Information White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina 1668421.105 Top -of - Monitoring Well Casing Well Well Screened Interval Geology of Screened Well Identification Northing Easting Date of Construction Elevation Depth Diameter (ft bgs) Interval Status (feet) (inches) (ft AMSL) 1-1 859779.0057 1785681.4037 07/14/89 713.75 24 2 14 24 PWR Active 1-2 860676.2436 1785350.8942 07/14/89 703.09 24 2 14 24 Sandy Silt Active 1-3 861283.9207 1785321.4743 07/14/89 707.43 24 2 14 24 Sandy Silt Active 1-4 861952.8335 1786141.9027 07/14/89 694.94 15 2 5 15 Sandy Silt Active MW-13 858763.9106 1783188.5206 07/14/89 741.24 34 2 19 34 Sandy Silt Active Notes: 1. ft AMSL= feet above mean sea level 2. ft bgs = feet below ground surface 3. MW = monitoring well 4. PWR = partially weathered rock 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 10f1 April 2019 TABLE 4 1668421.105 Summary of Groundwater Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina Detected Monitoring Reporting Sample Method rac ica Upgradient Well Downgradient Wells Detection Quantitation Reporting Blanks Constituent/Parameter Units Date MW-13 1-1 1-2 1-3 1-4 Arsenic ug/L 03/01/00 -- -- 10 ND ND ND ND ND ND NC 2L = 10 ug/L ug/L 09/01/00 -- -- 10 ND ND ND ND ND ND EPA MCL = 10 ug/L ug/L 03/01/01 -- -- 10 ND ND ND ND ND ND ug/L 09/01/01 -- -- 10 ND ND ND ND ND ND ug/L 03/01/02 -- -- 10 ND ND ND ND ND ND ug/L 09/01/02 -- -- 10 ND ND ND ND ND ND ug/L 04/01/03 -- -- 10 ND ND ND ND ND ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND ND ug/L 03/01/04 -- -- 10 ND ND ND ND ND ND ug/L 09/01/04 -- -- 10 ND ND ND ND ND ND ug/L 05/01/05 -- -- 10 ND ND ND ND ND ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND ND ug/L 04/01/06 -- -- 10 ND ND ND ND ND ND ug/L 10/01/06 -- -- 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 05/02/08 2.0 -- 10 2.4 1 ND ND ND ND ND ug/L 12/05/08 2.8 -- 10 ND ND ND ND ND ND ug/L 04/16/09 2.8 -- 10 ND 3.3 1 ND 3.3 1 4.7 1 ND ug/L 10/07/09 2.8 -- 10 ND ND ND ND 3.38 1 ND ug/L 04/28/10 2.8 -- 10 ND ND ND ND ND ND ug/L 10/11/10 2.8 -- 10 ND ND 3.38 B ND 9.10 B -- ug/L 05/10/11 2.8 -- 10 ND 5.68 1 4.72 1 ND ND ND ug/L 10/06/11 2.8 -- 10 ND ND ND ND ND ND ug/L 04/16/12 2.8 -- 10 ND 4.23 1 ND ND ND ND ug/L 10/24/12 2.8 -- 10 3.75 1 4.25 1 ND ND 5.15 1 ND ug/L 04/24/13 2.8 -- 10 ND ND ND ND ND ND ug/L 09/10/13 5.4 -- 10 ND ND ND ND ND ND ug/L 04/22/14 5.4 -- 10 ND 7.71 1 ND ND ND ND ug/L 10/06/14 5.4 -- 10 ND ND ND ND ND ND ug/L 04/07/15 6.8 -- 10 ND ND ND ND ND ND ug/L 10/07/15 6.8 -- 10 ND ND ND ND ND ND ug/L 04/26/16 6.8 -- 10 ND ND ND ND ND ND ug/L 09/28/16 6.8 -- 10 ND 7.07 1 9.93 1 ND ND ND ug/L 04/27/17 6.8 -- 10 ND ND ND ND ND ND ug/L 10/17/17 6.8 -- 10 ND ND ND ND ND ND ug/L 04/16/18 6.8 -- 10 ND ND ND ND ND ND ug/L 10/18/18 7.6 10.0 -- ND ND ND ND ND ND ug/L 04/08/19 7.60 10.0 -- ND ND ND ND ND ND Barium ug/L 03/01/00 -- -- 500 ND ND 690 ND 910 ND NC 2L = 700 ug/L ug/L 09/01/00 -- -- 500 ND ND ND ND 800 ND EPA MCL = 2000 ug/L ug/L 03/01/01 -- -- 500 ND ND ND ND 900 ND ug/L 09/01/01 -- -- 500 ND ND ND ND 990 ND ug/L 03/01/02 -- -- 500 ND ND ND ND 1300 ND ug/L 09/01/02 -- -- 500 ND ND ND ND 540 ND ug/L 04/01/03 -- -- 500 ND ND ND ND 780 ND ug/L 10/01/03 -- -- 500 ND ND 650 ND 580 ND ug/L 03/01/04 -- -- 500 ND ND ND ND ND ND ug/L 09/01/04 -- -- 500 ND ND 730 ND ND ND ug/L 05/01/05 -- -- 500 ND ND ND ND 730 ND ug/L 10/01/05 -- -- 500 ND ND 550 ND 870 ND ug/L 04/01/06 -- -- 500 ND ND 575 ND 744 ND ug/L 10/01/06 -- -- 500 ND ND 514 ND 930 ND ug/L 04/10/07 -- -- -- 120 173 580 144 624 ND ug/L 09/25/07 -- -- -- 130 153 497 125 480 ND ug/L 05/02/08 0.2 -- 100 -- 371 634 128 964 ND ug/L 12/05/08 1.0 -- 100 127 1.1 375 180 812 ND ug/L 04/16/09 4.2 -- 100 -- 580 506 117 693 ND ug/L 10/07/09 1.0 -- 100 119 230 B 517 B 190 B 556 B -- ug/L 04/28/10 1.0 -- 100 112 304 489 112 508 ND ug/L 10/11/10 1.0 -- 100 -- 198 507 135 456 ND ug/L 05/10/11 1.0 -- 100 108 639 347 160 906 ND ug/L 10/06/11 1.0 -- 100 115 389 307 170 651 ND ug/L 04/16/12 1.0 -- 100 112 664 528 153 677 ND ug/L 10/24/12 1.0 -- 100 104 631 358 163 696 ND ug/L 04/24/13 1.0 -- 100 120 683 286 149 635 ND ug/L 09/10/13 1.0 -- 100 85.9 1 590 426 146 585 ND ug/L 04/22/14 1.0 -- 100 98.7 1 732 483 128 585 ND ug/L 10/06/14 1.0 -- 100 88.3 1 585 524 136 537 ND ug/L 04/07/15 1.0 -- 100 105 792 598 156 596 ND ug/L 10/07/15 1.0 -- 100 93.3 1 484 576 151 376 ND ug/L 04/26/16 1.0 -- 100 91.3 1 672 513 135 699 ND ug/L 09/28/16 1.0 -- 100 85.1 1 623 532 135 628 ND ug/L 04/27/17 1.0 -- 100 96.6 1 693 291 131 554 ND ug/L 10/17/17 1.0 -- 100 94.1 1 665 465 148 669 ND ug/L 04/16/18 1.0 -- 100 82.7 1 705 512 131 751 ND ug/L 10/18/18 1.1 10.0 -- 94.5 660 499 136 546 ND ug/L 04/08/19 1.1 10.0 -- 95.9 724 233 71 599 ND Cadmium ug/L 03/01/00 -- -- 1 ND ND 7.00 ND 4.0 ND NC 2L = 2 ug/L ug/L 09/01/00 -- -- 1 ND ND 11 ND 5.0 ND EPA MCL = 5 ug/L ug/L 03/01/01 -- -- 1 ND ND 3.4 ND 8.0 ND ug/L 09/01/01 -- -- 1 ND ND 5.0 1.6 5.5 ND ug/L 03/01/02 -- -- 1 ND 1.0 5.5 1.4 7.5 ND ug/L 09/01/02 -- -- 1 ND ND 5.5 ND 1.8 ND ug/L 04/01/03 -- -- 1 ND ND ND ND ND ND ug/L 10/01/03 -- -- 1 ND ND 7.6 1.7 4.5 ND ug/L 03/01/04 -- -- 1 ND 1.5 1.9 2.2 3.0 ND ug/L 09/01/04 -- -- 1 ND ND 1.1 ND ND ND ug/L 05/01/05 -- -- 1 ND ND ND ND ND ND ug/L 10/01/05 -- -- 1 ND ND ND ND ND ND ug/L 04/01/06 -- -- 1 4.3 ND ND ND ND ND ug/L 10/01/06 -- -- 1 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 05/02/08 0.5 -- 1 ND ND ND ND ND ND ug/L 12/05/08 0.36 -- 1 ND ND ND ND ND ND ug/L 04/16/09 0.09 -- 1 ND 0.35 B 0.53 B 0.23 B 1.2 B -- ug/L 10/07/09 0.36 -- 1 ND ND 0.422 1 ND 0.914 1 ND ug/L 04/28/10 0.36 -- 1 ND ND ND ND 0.649 1 ND ug/L 10/11/10 0.36 -- 1 ND ND ND ND 0.638 1 ND ug/L 05/10/11 0.36 -- 1 ND ND ND ND ND ND ug/L 10/06/11 0.36 -- 1 ND ND ND ND ND ND ug/L 04/16/12 0.36 -- 1 ND ND ND ND ND ND ug/L 10/24/12 0.36 -- 1 ND ND ND ND 0.494 1 ND ug/L 04/24/13 0.36 -- 1 ND ND ND ND ND ND ug/L 09/10/13 0.36 -- 1 ND ND ND ND ND ND ug/L 04/22/14 0.36 -- 1 ND ND ND ND ND ND ug/L 10/06/14 0.36 -- 1 ND ND ND ND ND ND ug/L 04/07/15 0.36 -- 1 ND ND ND ND ND ND ug/L 10/07/15 0.36 -- 1 ND ND ND ND ND ND ug/L 04/26/16 0.36 -- 1 ND ND ND ND ND ND ug/L 09/28/16 0.36 -- 1 ND ND ND ND 0.427 1 ND ug/L 04/27/17 0.36 -- 1 ND ND ND ND 0.409 1 ND ug/L 10/17/17 0.36 -- 1 ND ND ND ND ND ND ug/L 04/16/18 0.36 -- 1 ND ND ND ND ND ND ug/L 10/18/18 0.36 1.00 -- ND ND ND ND ND ND ug/L 04/08/19 0.36 1.00 -- ND ND ND ND ND ND 4 GOLDER 1of8 April 2019 TABLE 4 1668421.105 Summary of Groundwater Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina Detected Monitoring Reporting Sample Method rac ica Upgradient Well Downgradient Wells Constituent/Parameter Units Date Detection Quantitation Reporting Blanks MW-13 1-1 1-2 1-3 1-4 Chromium ug/L 03/01/00 -- -- 10 ND ND 28 12 ND ND NC 2L = 10 ug/L ug/L 09/01/00 -- -- 10 ND ND 40 ND ND ND EPA MCL = 100 ug/L ug/L 03/01/01 -- -- 10 ND ND 14 ND ND ND ug/L 09/01/01 -- -- 10 ND ND ND 10 14 ND ug/L 03/01/02 -- -- 10 ND ND ND ND 11 ND ug/L 09/01/02 -- -- 10 ND ND ND ND ND ND ug/L 04/01/03 -- -- 10 ND ND ND ND ND ND ug/L 10/01/03 -- -- 10 ND ND 12 12 10 ND ug/L 03/01/04 -- -- 10 ND ND 11 12 12 ND ug/L 09/01/04 -- -- 10 ND ND ND ND ND ND ug/L 05/01/05 -- -- 10 ND ND ND ND ND ND ug/L 10/01/05 -- -- 10 ND ND 18 ND 90 ND ug/L 04/01/06 -- -- 10 ND ND 25.7 ND 13.2 ND ug/L 10/01/06 -- -- 10 ND ND ND ND 66 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 05/02/08 2 -- 10 ND ND 25.2 ND 91.5 ND ug/L 12/05/08 1 -- 10 ND ND ND ND ND ND ug/L 04/16/09 0.7 -- 10 -- 3.4 1 44.2 12.8 52.5 ND ug/L 10/07/09 1 -- 10 ND ND 20.1 10.4 52.9 ND ug/L 04/28/10 1 -- 10 ND 1.52 1 6.17 1 4.75 1 37.4 ND ug/L 10/11/10 1 -- 10 ND ND 11.2 3.40 1 71.4 ND ug/L 05/10/11 1 -- 10 ND 5.13 1 73.8 15.1 109 ND ug/L 10/06/11 1 -- 10 1.27 1 2.33 1 12.8 9.49 1 36.4 ND ug/L 04/16/12 1 -- 10 ND 5.39 1 19.6 14.1 64.0 ND ug/L 10/24/12 1 -- 10 ND 2.34 1 42.2 8.00 1 51.6 ND ug/L 04/24/13 1.4 -- 10 1.74 1 ND 21.8 2.79 1 39.3 ND ug/L 09/10/13 1.4 -- 10 ND ND 2.06 1 5.05 1 6.3 1 ND ug/L 04/22/14 1.4 -- 10 ND 2.52 1 8.14 1 5.49 1 12.2 ND ug/L 10/06/14 1.4 -- 10 ND 2.59 1 12.8 6.34 1 5.58 1 ND ug/L 04/07/15 1.4 -- 10 ND 3.97 1 20.0 9.33 1 9.31 1 ND ug/L 10/07/15 1.4 -- 10 ND 2.66 1 29.9 7.78 1 4.61 1 ND ug/L 04/26/16 1.4 -- 10 ND ND 3.57 1 1.56 1 2.83 1 ND ug/L 09/28/16 1.4 -- 10 ND ND 2.98 1 ND ND ND ug/L 04/27/17 1.4 -- 10 ND ND 7.43 1 1.52 1 2.45 1 ND ug/L 10/17/17 1.4 -- 10 ND 3.94 1 5.66 1 4.38 1 2.36 1 ND ug/L 04/16/18 1.4 -- 10 ND 1.76 1 12.6 3.90 1 2.70 1 ND ug/L 10/18/18 1.4 10.0 -- ND 2.48 1 5.02 1 5.34 1 2.87 1 ND ug/L 04/08/19 1.4 10.0 -- ND 2.40 1 6.88 1 3.39 1 1.94 1 ND Lead ug/L 03/01/00 -- -- 10 ND ND ND ND ND ND NC 2L = 15 ug/L ug/L 09/01/00 -- -- 10 ND ND ND ND ND ND EPA MCL = 15 ug/L ug/L 03/01/01 -- -- 10 ND ND ND ND ND ND ug/L 09/01/01 -- -- 10 ND ND ND ND ND ND ug/L 03/01/02 -- -- 10 ND ND ND ND ND ND ug/L 09/01/02 -- -- 10 ND ND ND ND ND ND ug/L 04/01/03 -- -- 10 ND ND ND ND ND ND ug/L 10/01/03 -- -- 10 ND ND 26 ND 16 ND ug/L 03/01/04 -- -- 10 ND ND ND ND ND ND ug/L 09/01/04 -- -- 10 ND ND 62 ND ND ND ug/L 05/01/05 -- -- 10 ND ND ND ND ND ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND ND ug/L 04/01/06 -- -- 10 ND ND ND ND ND ND ug/L 10/01/06 -- -- 10 ND ND ND ND 11.7 ND ug/L 04/10/07 -- -- -- 2.0 2.0 6.7 1 2.0 2.9 ND ug/L 09/25/07 -- -- -- 2.0 ND 3.6 1 ND ND ND ug/L 05/02/08 2.0 -- 10 ND ND 5.6 1 ND 17.6 ND ug/L 12/05/08 1.9 -- 10 ND ND ND ND ND ND ug/L 04/16/09 1.6 -- 10 -- 4.1 1 12.4 3.7 1 19 ND ug/L 10/07/09 1.9 -- 10 ND ND 3.31 1 2.44 1 14 ND ug/L 04/28/10 1.9 -- 10 ND ND ND ND 7.98 1 ND ug/L 10/11/10 1.9 -- 10 ND ND 2.01 1 ND 16.4 ND ug/L 05/10/11 1.9 -- 10 ND ND 11.3 2.85 1 34.3 ND ug/L 10/06/11 1.9 -- 10 ND ND ND ND 8.6 1 ND ug/L 04/16/12 1.9 -- 10 ND 1.9 3.15 1 1.9 15.8 ND ug/L 10/24/12 1.9 -- 10 ND 2.3 1 11.2 2.79 1 18.7 ND ug/L 04/24/13 1.9 -- 10 ND ND ND ND 9.79 1 ND ug/L 09/10/13 2.1 -- 10 ND ND ND ND 4.72 1 ND ug/L 04/22/14 2.1 -- 10 ND 3.12 1 4.62 1 ND 8.23 1 ND ug/L 10/06/14 2.1 -- 10 ND ND ND ND ND ND ug/L 04/07/15 3.1 -- 10 ND ND ND ND ND ND ug/L 10/07/15 3.1 -- 10 ND 3.7 1 4.3 1 ND 3.7 1 ND ug/L 04/26/16 3.1 -- 10 ND ND ND ND ND ND ug/L 09/28/16 3.1 -- 10 ND ND 4.94 1 ND 3.56 1 ND ug/L 04/27/17 3.1 -- 10 ND ND ND ND ND ND ug/L 10/17/17 3.1 -- 10 ND ND ND ND ND ND ug/L 04/16/18 3.1 -- 10 ND ND ND ND ND ND ug/L 10/18/18 3.1 10.0 -- ND ND ND ND ND ND ug/L 04/08/19 3.1 10.0 -- ND ND ND ND ND ND Mercury ug/L 03/01/00 -- -- 0.5 ND ND ND ND ND ND NC 2L = 1 ug/L ug/L 09/01/00 -- -- 0.5 ND ND ND ND ND ND EPA MCL = 2 ug/L ug/L 03/01/01 -- -- 0.5 ND ND ND ND ND ND ug/L 09/01/01 -- -- 0.5 ND ND ND ND ND ND ug/L 03/01/02 -- -- 0.5 ND ND ND ND ND ND ug/L 09/01/02 -- -- 0.5 ND ND ND ND ND ND ug/L 04/01/03 -- -- 0.5 ND 2.4 ND ND ND ND ug/L 10/01/03 -- -- 0.5 ND ND ND ND ND ND ug/L 03/01/04 -- -- 0.5 ND 2.4 ND ND ND ND ug/L 09/01/04 -- -- 0.5 ND 0.9 ND ND ND ND ug/L 05/01/05 -- -- 0.5 ND ND ND ND ND ND ug/L 10/01/05 -- -- 0.5 ND ND ND ND ND ND ug/L 04/01/06 -- -- 0.5 ND ND ND ND ND ND ug/L 10/01/06 -- -- 0.5 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- -- 0.14 1 ND ND ND ND ug/L 09/25/07 -- -- -- 0.11 3.96 ND ND ND ND ug/L 05/02/08 0.11 -- 0.2 ND 0.45 ND ND ND ND ug/L 12/05/08 0.11 -- 0.2 ND ND ND ND ND ND ug/L 04/16/09 0.11 -- 0.2 -- 0.34 ND ND ND ND ug/L 10/07/09 0.054 -- 0.2 ND 0.0867 1 ND ND 0.0638 1 ND ug/L 04/28/10 0.17 -- 0.2 ND ND ND ND ND ND ug/L 10/11/10 0.17 -- 0.2 ND ND ND ND ND ND ug/L 05/10/11 0.17 -- 0.2 ND ND ND ND ND ND ug/L 10/06/11 0.17 -- 0.2 ND ND ND ND ND ND ug/L 04/16/12 0.17 -- 0.2 ND 0.237 ND ND ND ND ug/L 10/24/12 0.17 -- 0.2 ND ND ND ND ND ND ug/L 04/24/13 0.17 -- 0.2 ND ND ND ND ND ND ug/L 09/10/13 0.17 -- 0.2 ND ND ND ND ND ND ug/L 04/22/14 0.17 -- 0.2 ND ND ND ND ND ND ug/L 10/06/14 0.17 -- 0.2 ND ND ND ND ND ND ug/L 04/07/15 0.17 -- 0.2 ND ND ND ND ND ND ug/L 10/07/15 0.17 -- 0.2 ND ND ND ND ND ND ug/L 04/26/16 0.17 -- 0.2 ND ND ND ND ND ND ug/L 09/28/16 0.17 -- 0.2 ND ND ND ND ND ND ug/L 04/27/17 0.17 -- 0.2 ND 0.174 1 ND ND ND ND ug/L 10/17/17 0.17 -- 0.2 ND 0.667 ND ND ND ND ug/L 04/16/18 0.17 -- 0.2 ND 0.283 ND ND ND ND ug/L 10/18/18 0.15 0.200 -- ND ND ND ND ND ND ug/L 04/08/19 0.15 0.200 -- ND ND ND ND ND ND 4 GOLDER 2of8 April 2019 TABLE 4 1668421.105 Summary of Groundwater Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina Detected Monitoring Reporting Sample Method Detection rac ica Quantitation Reporting Upgradient Well Downgradient Wells Blanks Constituent/Parameter Units Date MW-13 1-1 1-2 1-3 1-4 Selenium ug/L 03/01/00 -- -- 20 ND ND ND ND ND ND NC 2L = 20 ug/L ug/L 09/01/00 -- -- 20 ND ND ND ND ND ND EPA MCL = 50 ug/L ug/L 03/01/01 -- -- 20 ND ND ND ND ND ND ug/L 09/01/01 -- -- 20 ND ND ND ND ND ND ug/L 03/01/02 -- -- 20 ND ND ND ND ND ND ug/L 09/01/02 -- -- 20 ND ND ND ND ND ND ug/L 04/01/03 -- -- 20 ND ND ND ND ND ND ug/L 10/01/03 -- -- 20 ND ND ND ND ND ND ug/L 03/01/04 -- -- 20 ND ND ND ND ND ND ug/L 09/01/04 -- -- 20 ND ND ND ND ND ND ug/L 05/01/05 -- -- 20 ND ND ND ND ND ND ug/L 10/01/05 -- -- 20 ND ND ND ND ND ND ug/L 04/01/06 -- -- 20 ND ND ND ND ND ND ug/L 10/01/06 -- -- 20 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 05/02/08 2.0 -- 10 ND ND ND ND ND ND ug/L 12/05/08 2.7 -- 10 ND ND ND ND ND ND ug/L 04/16/09 3.4 -- 10 -- ND ND ND ND ND ug/L 10/07/09 2.7 -- 10 ND ND ND ND ND ND ug/L 04/28/10 0.83 -- 10 ND ND ND ND ND ND ug/L 10/11/10 2.7 -- 10 1.31 J 2.7 2.7 2.7 5.55 J ND ug/L 05/10/11 0.83 -- 10 1.07 J ND ND ND ND ND ug/L 10/06/11 2.7 -- 10 ND ND ND ND ND ND ug/L 04/16/12 2.7 -- 10 ND ND ND ND ND ND ug/L 10/24/12 4.5 -- 10 ND ND ND ND ND ND ug/L 04/24/13 4.5 -- 10 ND ND ND ND ND ND ug/L 09/10/13 5.0 -- 10 ND ND ND ND ND ND ug/L 04/22/14 5.0 -- 10 ND ND ND ND ND ND ug/L 10/06/14 5.0 -- 10 ND ND ND ND ND ND ug/L 04/07/15 5.0 -- 10 ND ND ND ND ND ND ug/L 10/07/15 5.0 -- 10 ND ND ND ND ND ND ug/L 04/26/16 6.2 -- 10 ND ND ND ND ND ND ug/L 09/28/16 6.2 -- 10 ND ND ND ND ND ND ug/L 04/27/17 6.2 -- 10 ND ND ND ND ND ND ug/L 10/17/17 6.2 -- 10 ND ND ND ND ND ND ug/L 04/16/18 6.2 -- 10 ND ND ND ND ND ND ug/L 10/18/18 6.2 10.0 -- ND ND ND ND ND ND ug/L 04/08/19 6.2 10.0 -- ND ND ND ND ND ND Silver ug/L 03/01/00 -- -- 10 ND ND ND ND ND ND NC 2L = 20 ug/L ug/L 09/01/00 -- -- 10 ND ND ND ND ND ND EPA MCL = 100 ug/L ug/L 03/01/01 -- -- 10 ND ND ND ND ND ND ug/L 09/01/01 -- -- 10 ND ND ND ND ND ND ug/L 03/01/02 -- -- 10 ND ND ND ND ND ND ug/L 09/01/02 -- -- 10 ND ND ND ND ND ND ug/L 04/01/03 -- -- 10 ND ND ND ND ND ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND ND ug/L 03/01/04 -- -- 10 ND ND ND ND ND ND ug/L 09/01/04 -- -- 10 ND ND ND ND ND ND ug/L 05/01/05 -- -- 10 ND ND ND ND ND ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND ND ug/L 04/01/06 -- -- 10 ND ND ND ND ND ND ug/L 10/01/06 -- -- 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 05/02/08 2.0 -- 10 ND ND ND ND ND ND ug/L 12/05/08 1.9 -- 10 ND ND ND ND ND ND ug/L 04/16/09 1.0 -- 10 -- 5.2 J 2.1 J 5 J ND ND ug/L 10/07/09 1.9 -- 10 ND 2.34 J 3.35 J 3.53 J 2.44 J ND ug/L 04/28/10 1.9 -- 10 ND 5.16 J 6.91 J 5.57 J 2.93 J ND ug/L 10/11/10 1.9 -- 10 ND 2 J ND 3.56 J ND ND ug/L 05/10/11 1.9 -- 10 ND 2.04 J ND 3.07 J 3.11 J ND ug/L 10/06/11 1.9 -- 10 ND ND ND 1.92 J 1.9 J ND ug/L 04/16/12 1.9 -- 10 ND 3.7 J 4.39 J 4.54 J 5.39 J ND ug/L 10/24/12 1.9 -- 10 ND ND 2.94 J ND 3.8 J ND ug/L 04/24/13 1.9 -- 10 ND 4.22 J 2.96 J 4.42 J ND ND ug/L 09/10/13 1.9 -- 10 ND ND 2.16 J 2.59 J 2.62 J ND ug/L 04/22/14 1.9 -- 10 ND ND ND ND ND ND ug/L 10/06/14 1.9 -- 10 ND ND ND ND ND ND ug/L 04/07/15 1.9 -- 10 ND 2.16 J 2.18 J ND ND ND ug/L 10/07/15 1.9 -- 10 2.79 J ND ND ND ND ND ug/L 04/26/16 1.9 -- 10 ND ND ND ND ND ND ug/L 09/28/16 1.9 -- 10 ND ND ND ND ND ND ug/L 04/27/17 1.9 -- 10 ND 2.04 J ND 2.66 J ND ND ug/L 10/17/17 1.9 -- 10 ND ND ND ND ND ND ug/L 04/16/18 1.9 -- 10 ND ND ND ND 2.23 J ND ug/L 10/18/18 1.9 10.0 -- ND ND ND ND ND ND ug/L 04/08/19 1.9 10.0 -- ND ND ND ND ND ND Zinc ug/L 04/10/07 -- -- 2.2 -- -- -- -- -- NC 2L = 1000 ug/L ug/L 09/25/07 -- -- 2.5 J -- -- -- -- -- MCL = 5000 ug/L ug/L 12/05/08 3.8 10 7.8 J -- -- -- -- -- ug/L 10/14/09 3.8 10 7.66 J -- -- -- -- -- ug/L 04/28/10 3.8 10 7.2 J -- -- -- -- -- ug/L 05/10/11 3.8 10 4.92 J -- -- -- -- -- ug/L 10/18/18 4.4 -- 6.31 J -- -- -- -- ND ug/L 04/08/19 4.4 10.0 -- 13.0 -- -- -- -- -- 4 GOLDER 3of8 April 2019 TABLE 4 1668421.105 Summary of Groundwater Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina Detected Monitoring Reporting Sample Method rac ica Upgradient Well Downgradient Wells Constituent/Parameter Units Date Detection Quantitation Reporting Blanks MW-13 1-1 1-2 1-3 1-4 Acetone ug/L 03/01/00 -- -- 100 ND ND ND ND ND ND NC 2L = 6000 ug/L ug/L 09/01/00 -- -- 100 ND ND ND ND ND ND (No EPA MCL) ug/L 03/01/01 -- -- 100 ND ND ND ND ND ND ug/L 09/01/01 -- -- 100 ND ND ND ND ND ND ug/L 03/01/02 -- -- 100 ND ND ND ND ND ND ug/L 09/01/02 -- -- 100 ND ND ND ND ND ND ug/L 04/01/03 -- -- 100 ND ND ND ND ND ND ug/L 10/01/03 -- -- 100 ND ND ND ND ND ND ug/L 03/01/04 -- -- 100 ND ND ND ND ND ND ug/L 09/01/04 -- -- 100 ND ND ND ND ND ND ug/L 05/01/05 -- -- 100 ND ND ND ND ND ND ug/L 10/01/05 -- -- 100 ND ND ND ND ND ND ug/L 04/01/06 -- -- 100 ND ND ND ND ND ND ug/L 10/01/06 -- -- 100 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND 33 J 1.4 J ND ug/L 09/25/07 -- -- -- 3.8 B 5.8 J 7.1 J 9.1 J 20 J ND ug/L 05/02/08 0.62 -- 100 ND ND ND ND ND ND ug/L 12/05/08 1.5 -- 100 ND 0.37 6.4 J 5.6 J 6.1 J ND ug/L 04/16/09 1.5 -- 100 -- 15 J ND ND ND ND ug/L 10/07/09 2.8 -- 55 ND ND ND ND ND ND ug/L 10/14/09 1.5 -- 100 ND -- -- -- -- ND ug/L 04/28/10 1.5 -- 100 ND ND ND ND ND ND ug/L 10/11/10 1.5 -- 100 ND ND ND ND ND ND ug/L 05/10/11 1.2 -- 100 ND ND ND ND 4.1 J ND ug/L 10/06/11 1.2 -- 100 ND ND ND ND 5.7 J ND ug/L 04/16/12 1.2 -- 100 ND 3.8 J ND ND ND ND ug/L 10/24/12 1.2 -- 100 ND 12 J ND ND 12 J ND ug/L 04/24/13 0.96 -- 100 ND ND ND ND ND ND ug/L 09/10/13 1.2 -- 100 ND ND ND ND 8.6 J ND ug/L 04/22/14 1.2 -- 100 ND ND ND ND ND ND ug/L 10/06/14 1.2 -- 100 ND ND ND ND ND ND ug/L 04/07/15 1.2 -- 100 ND ND ND ND 3.6 J ND ug/L 10/07/15 1.2 -- 100 ND ND ND ND ND ND ug/L 04/26/16 1.2 -- 100 ND ND ND ND ND ND ug/L 09/28/16 10 -- 100 ND ND ND ND ND ND ug/L 04/27/17 10 -- 100 16 B 20 B 32 B 19 B 31 B 20 J ug/L 10/17/17 10 -- 100 ND ND ND ND ND ND ug/L 04/16/18 10 -- 100 ND ND ND ND 14 J ND ug/L 10/18/18 10 20 -- ND ND ND ND ND ND ug/L 04/08/19 10 20 -- ND ND ND ND 13 J ND Benzene ug/L 03/01/00 -- -- 5 ND ND ND ND ND ND NC 2L = 1 ug/L ug/L 09/01/00 -- -- 5 ND ND ND ND ND ND EPA MCL = 5 ug/L ug/L 03/01/01 -- -- 5 ND ND ND ND ND ND ug/L 09/01/01 -- -- 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 04/01/06 -- -- 5 ND ND ND ND ND ND ug/L 10/01/06 -- -- 5 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND ug/L 09/25/07 -- -- -- ND 1.3 ND 0.5 J 0.5 J ND ug/L 05/02/08 0.2 -- 1 ND 1.7 ND ND 0.43 J ND ug/L 12/05/08 0.2 -- 1 ND 162 ND 0.51 J ND ND ug/L 04/16/09 0.2 -- 1 -- ND ND ND ND ND ug/L 10/07/09 0.2 -- 1 ND 1.6 ND 0.51 J ND ND ug/L 04/28/10 0.05 -- 1 ND 1.7 ND ND ND ND ug/L 10/11/10 0.2 -- 1 ND 1.5 ND 0.49 J ND ND ug/L 05/10/11 0.68 -- 1 ND 2.7 ND ND ND ND ug/L 10/06/11 0.68 -- 1 ND 1.8 ND ND ND ND ug/L 04/16/12 0.15 -- 1 ND 2.8 ND ND ND ND ug/L 10/24/12 0.15 -- 1 ND 2.2 0.15 0.44 J 0.15 ND ug/L 04/24/13 0.25 -- 1 ND 3.5 ND 0.34 J ND ND ug/L 09/10/13 0.15 -- 1 ND 3.0 ND ND ND ND ug/L 04/22/14 0.15 -- 1 ND 3.5 ND ND ND ND ug/L 10/06/14 0.15 -- 1 ND 3.9 0.54 J ND ND ND ug/L 04/07/15 0.15 -- 1 ND 3.7 ND ND ND ND ug/L 10/07/15 0.15 -- 1 ND 3.3 ND 0.58 J ND ND ug/L 04/26/16 0.15 -- 1 ND 3.9 ND ND ND ND ug/L 09/28/16 0.15 -- 1 ND 4.3 ND 0.52 J ND ND ug/L 04/27/17 0.15 -- 1 ND 5.4 ND ND ND ND ug/L 10/17/17 0.15 -- 1 ND 4.4 ND ND ND ND ug/L 04/16/18 0.15 -- 1 ND 5.0 ND ND ND ND ug/L 10/18/18 0.15 1.0 -- ND 2.9 ND ND ND ND ug/L 04/08/19 0.15 1.0 -- ND 5.6 ND ND ND ND Bromoform ug/L 03/01/00 -- -- 5 ND ND ND ND ND -- NC 2L = 4 ug/L ug/L 09/01/00 -- -- 5 ND ND ND ND ND -- EPA MCL = 80 ug/L ug/L 03/01/01 -- -- 5 ND ND ND ND ND -- ug/L 09/01/01 -- -- 5 ND ND ND ND ND -- ug/L 03/01/02 -- -- 5 ND ND ND ND ND -- ug/L 09/01/02 -- -- 5 ND ND ND ND ND -- ug/L 04/01/03 -- -- 5 ND ND ND ND ND -- ug/L 10/01/03 -- -- 5 ND ND ND ND ND -- ug/L 03/01/04 -- -- 5 ND ND ND ND ND -- ug/L 09/01/04 -- -- 5 ND ND ND ND ND -- ug/L 05/01/05 -- -- 5 ND ND ND ND ND -- ug/L 10/01/05 -- -- 5 ND ND ND ND ND -- ug/L 04/01/06 -- -- 5 ND ND ND ND ND -- ug/L 10/01/06 -- -- 5 ND ND ND ND ND -- ug/L 04/10/07 -- -- -- ND ND ND ND ND -- ug/L 09/25/07 -- -- -- ND ND ND ND ND -- ug/L 05/02/08 0.29 -- 3 ND ND ND ND ND -- ug/L 12/05/08 0.71 -- 3 ND 7.1 J ND ND ND -- ug/L 04/16/09 0.71 -- 3 -- ND ND ND ND -- ug/L 10/07/09 0.71 -- 3 ND ND ND ND ND -- ug/L 04/28/10 0.2 -- 3 ND ND ND ND ND ND ug/L 10/11/10 0.71 -- 3 ND ND ND ND ND ND ug/L 05/10/11 0.68 -- 3 ND -- -- -- -- ND ug/L 10/06/11 0.68 -- 3 ND ND ND ND ND ND ug/L 04/16/12 0.22 -- 3 ND ND ND ND ND ND ug/L 10/24/12 0.22 -- 3 ND ND ND ND ND ND ug/L 04/24/13 0.33 -- 3 ND ND ND ND ND ND ug/L 09/10/13 0.22 -- 3 ND ND ND ND ND ND ug/L 04/22/14 0.22 -- 3 ND ND ND ND ND ND ug/L 10/06/14 0.22 -- 3 ND ND ND ND ND ND ug/L 04/07/15 0.22 -- 3 ND ND ND ND ND -- ug/L 10/07/15 0.22 -- 3 ND ND ND ND ND -- ug/L 04/26/16 0.22 -- 3 ND ND ND ND ND -- ug/L 09/28/16 0.22 -- 3 ND ND ND ND ND -- ug/L 04/27/17 0.22 -- 3 ND ND ND ND ND ND ug/L 10/17/17 0.22 -- 3 ND ND ND ND ND ND ug/L 04/16/18 0.22 -- 3 ND ND ND ND ND ND ug/L 10/18/18 0.22 1.0 -- ND ND ND ND ND ND ug/L 04/08/19 0.22 1.0 -- ND ND ND ND ND ND 4 GOLDER 4of8 April 2019 TABLE 4 1668421.105 Summary of Groundwater Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina Detected Monitoring Reporting Sample Method Detection rac ica Quantitation Reporting Upgradient Well Downgradient Wells Blanks Constituent/Parameter Units Date MW-13 1-1 1-2 1-3 1-4 Carbon Tetrachloride ug/L 03/01/00 -- -- 10 ND ND ND ND ND -- NC 2L = 0.3 ug/L ug/L 09/01/00 -- -- 10 ND ND ND ND ND -- EPA MCL = 5 ug/L ug/L 03/01/01 -- -- 10 ND ND ND ND ND -- ug/L 09/01/01 -- -- 10 ND ND ND ND ND -- ug/L 03/01/02 -- -- 10 ND ND ND ND ND -- ug/L 09/01/02 -- -- 10 ND ND ND ND ND -- ug/L 04/01/03 -- -- 10 ND ND ND ND ND -- ug/L 10/01/03 -- -- 10 ND ND ND ND ND -- ug/L 03/01/04 -- -- 10 ND ND ND ND ND -- ug/L 09/01/04 -- -- 10 ND ND ND ND ND -- ug/L 05/01/05 -- -- 10 ND ND ND ND ND -- ug/L 10/01/05 -- -- 10 ND ND ND ND ND -- ug/L 04/01/06 -- -- 10 ND ND ND ND ND -- ug/L 10/01/06 -- -- 10 ND ND ND ND ND -- ug/L 04/10/07 -- -- -- ND ND ND ND ND -- ug/L 09/25/07 -- -- -- ND ND ND ND ND -- ug/L 05/02/08 0.35 -- 1 ND ND ND ND ND -- ug/L 12/05/08 0.38 -- 1 ND ND ND ND ND -- ug/L 04/16/09 0.38 -- 1 -- ND ND ND ND -- ug/L 10/07/09 0.38 -- 1 ND ND ND ND ND -- ug/L 04/28/10 0.082 -- 1 ND ND ND ND ND ND ug/L 10/11/10 0.38 -- 1 ND ND ND ND ND ND ug/L 05/10/11 0.69 -- 1 ND ND ND ND ND ND ug/L 10/06/11 0.69 -- 1 ND ND ND ND ND ND ug/L 04/16/12 0.17 -- 1 ND ND ND ND ND ND ug/L 10/24/12 0.17 -- 1 ND ND ND ND ND ND ug/L 04/24/13 0.34 -- 1 ND ND ND ND ND ND ug/L 09/10/13 0.17 -- 1 ND ND 0.17 ND ND ND ug/L 04/22/14 0.17 -- 1 ND ND ND ND ND ND ug/L 10/06/14 0.17 -- 1 ND ND ND ND ND ND ug/L 04/07/15 0.17 -- 1 ND ND ND ND ND -- ug/L 10/07/15 0.17 -- 1 ND ND ND ND ND -- ug/L 04/26/16 0.17 -- 1 ND ND ND ND ND -- ug/L 09/28/16 0.17 -- 1 ND ND ND ND ND -- ug/L 04/27/17 0.17 -- 1 ND ND ND ND ND ND ug/L 10/17/17 0.17 -- 1 ND ND ND ND ND ND ug/L 04/16/18 0.17 -- 1 ND ND ND ND ND ND ug/L 10/18/18 0.17 1.0 -- ND ND ND ND ND ND ug/L 04/08/19 0.17 1.0 -- ND ND ND ND ND ND Chlorobenzene ug/L 03/01/00 -- -- 5 ND ND ND ND 5.4 ND NC 2L = 50 ug/L ug/L 09/01/00 -- -- 5 ND ND ND 6.2 6.7 ND EPA MCL = 100 ug/L ug/L 03/01/01 -- -- 5 ND ND ND 6.7 8.2 ND ug/L 09/01/01 -- -- 5 ND ND ND ND ND ND ug/L 03/01/02 -- -- 5 ND ND ND 7.5 ND ND ug/L 09/01/02 -- -- 5 ND ND ND ND ND ND ug/L 04/01/03 -- -- 5 ND ND ND ND 6.7 ND ug/L 10/01/03 -- -- 5 ND ND ND 8.3 10 ND ug/L 03/01/04 -- -- 5 ND ND ND 7.7 9.8 ND ug/L 09/01/04 -- -- 5 ND ND ND 11 ND ND ug/L 05/01/05 -- -- 5 ND ND ND 8 9 ND ug/L 10/01/05 -- -- 5 ND ND 5 14 5 ND ug/L 04/01/06 -- -- 5 ND ND ND 9.6 9.8 ND ug/L 10/01/06 -- -- 5 ND ND 5.6 13 12 ND ug/L 04/10/07 -- -- -- 0.16 0.16 0.16 0.16 11 ND ug/L 09/25/07 -- -- -- 0.16 2.0 J 4.2 ND ND ND ug/L 05/02/08 0.27 -- 3 ND 4.6 5.8 9.8 9.4 ND ug/L 12/05/08 0.27 -- 3 ND 0.38 1.8 J 12 5.6 ND ug/L 04/16/09 0.27 -- 3 -- 7.2 4.3 6.7 6.1 ND ug/L 10/07/09 0.27 -- 3 ND 3.3 6.2 15 5.6 ND ug/L 04/28/10 0.069 -- 3 ND 3.9 6.2 12 5.5 ND ug/L 10/11/10 0.27 -- 3 ND 3.2 6.4 16 3.9 ND ug/L 05/10/11 0.74 -- 3 ND 6.3 1.4 J 9.3 5.6 ND ug/L 10/06/11 0.74 -- 3 ND 5.1 3.4 15 7.8 ND ug/L 04/16/12 0.17 -- 3 ND 7.3 4.7 7.4 4.2 ND ug/L 10/24/12 0.17 -- 3 ND 5.8 3 15 7.4 ND ug/L 04/24/13 0.26 -- 3 ND 8.1 1.7 J 10 4.2 ND ug/L 09/10/13 0.17 -- 3 ND 7.6 5.4 12 7.7 ND ug/L 04/22/14 0.17 -- 3 ND 11 4.8 8.2 7.6 ND ug/L 10/06/14 0.17 -- 3 ND 9.8 8.1 9.5 9.3 ND ug/L 04/07/15 0.17 -- 3 ND 11 6.2 13 7.1 ND ug/L 10/07/15 0.17 -- 3 ND 7.2 8.0 18 0.67 J ND ug/L 04/26/16 0.17 -- 3 ND 10 6.0 8.3 4.4 ND ug/L 09/28/16 0.17 -- 3 ND 11 8.7 17 3.9 ND ug/L 04/27/17 0.17 -- 3 ND 13 3.3 10 4.2 ND ug/L 10/17/17 0.17 -- 3 ND 12 7.6 16 2.9 J ND ug/L 04/16/18 0.17 -- 3 ND 12 4.6 4.6 5.2 ND ug/L 10/18/18 0.17 1.0 -- ND 13 6.3 3.6 4.7 ND ug/L 04/08/19 0.17 1.0 -- ND 12 1.5 ND 5.4 ND Chloroethane ug/L 03/01/00 -- -- 10 ND ND ND ND ND -- NC 2L = 3000 ug/L ug/L 09/01/00 -- -- 10 ND ND ND ND ND -- (No EPA MCL) ug/L 03/01/01 -- -- 10 ND ND ND ND ND -- ug/L 09/01/01 -- -- 10 ND ND ND ND ND -- ug/L 03/01/02 -- -- 10 ND ND ND ND ND -- ug/L 09/01/02 -- -- 10 ND ND ND ND ND -- ug/L 04/01/03 -- -- 10 ND ND ND ND ND -- ug/L 10/01/03 -- -- 10 ND ND ND ND ND -- ug/L 03/01/04 -- -- 10 ND ND ND ND ND -- ug/L 09/01/04 -- -- 10 ND ND ND ND ND -- ug/L 05/01/05 -- -- 10 ND ND ND ND ND -- ug/L 10/01/05 -- -- 10 ND ND ND ND ND -- ug/L 04/01/06 -- -- 10 ND ND ND ND ND -- ug/L 10/01/06 -- -- 10 ND ND ND ND ND -- ug/L 04/10/07 -- -- -- ND ND ND ND ND -- ug/L 09/25/07 -- -- -- ND ND ND ND ND -- ug/L 05/02/08 0.3 -- 10 ND ND ND ND ND -- ug/L 12/05/08 0.3 -- 10 ND 1.8 J ND ND ND -- ug/L 04/16/09 0.3 -- 10 -- ND ND ND ND -- ug/L 10/07/09 0.3 -- 10 ND ND ND ND ND -- ug/L 04/28/10 0.18 -- 10 ND ND ND ND ND ND ug/L 10/11/10 0.3 -- 10 ND ND ND ND ND ND ug/L 05/10/11 0.75 -- 10 ND ND ND ND ND ND ug/L 10/06/11 0.75 -- 10 ND ND ND ND ND ND ug/L 04/16/12 0.23 -- 10 ND ND ND ND ND ND ug/L 10/24/12 0.23 -- 10 ND ND ND ND ND ND ug/L 04/24/13 0.53 -- 10 ND ND ND ND ND ND ug/L 09/10/13 0.23 -- 10 ND ND ND ND ND ND ug/L 04/22/14 0.23 -- 10 ND ND ND ND ND ND ug/L 10/06/14 0.23 -- 10 ND ND ND ND ND -- ug/L 04/07/15 0.23 -- 10 ND ND ND ND ND -- ug/L 10/07/15 0.23 -- 10 ND ND ND ND ND -- ug/L 04/26/16 0.23 -- 10 ND ND ND ND ND -- ug/L 09/28/16 0.23 -- 10 ND ND ND ND ND -- ug/L 04/27/17 0.23 -- 10 ND ND ND ND ND ND ug/L 10/17/17 0.23 -- 10 ND ND ND ND ND ND ug/L 04/16/18 0.23 -- 10 ND ND ND ND ND ND ug/L 10/18/18 0.23 1.0 -- ND ND ND ND ND ND ug/L 04/08/19 0.23 1.0 -- ND ND ND ND ND ND 4 GOLDER 5of8 April 2019 TABLE 4 1668421.105 Summary of Groundwater Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina Detected Monitoring Reporting Sample Method Detection rac ica Quantitation Reporting Upgradient Well Downgradient Wells Blanks Constituent/Parameter Units Date MW-13 1-1 1-2 1-3 1-4 1,2-Dichlorobenzene ug/L 03/01/00 -- -- 5 ND ND ND ND ND ND NC 2L = 20 ug/L ug/L 09/01/00 -- -- 5 ND ND ND ND ND ND EPA MCL = 600 ug/L ug/L 03/01/01 -- -- 5 ND ND ND ND ND ND ug/L 09/01/01 -- -- 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 04/01/06 -- -- 5 ND ND ND ND ND ND ug/L 10/01/06 -- -- 5 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND 1.2 J 0.84 J 0.60 J ND ug/L 09/25/07 -- -- -- ND ND 1.2 J 0.79 1 0.48 J ND ug/L 05/02/08 0.27 -- 5 ND ND 1 J 0.49 J ND ND ug/L 12/05/08 0.27 -- 5 ND 0.42 ND 0.75 J ND ND ug/L 04/16/09 0.27 -- 5 -- ND 1.1 J 0.59 J 0.41 J ND ug/L 10/07/09 0.27 -- 5 ND ND 1.5 J 0.85 J ND ND ug/L 04/28/10 0.052 -- 5 ND ND 1.4 J 0.73 J ND ND ug/L 10/11/10 0.27 -- 5 ND ND 1.3 J 0.88 J ND ND ug/L 05/10/11 0.11 -- 5 ND ND ND ND ND ND ug/L 10/06/11 0.11 -- 5 ND ND 0.74 J 0.79 J ND ND ug/L 04/16/12 0.19 -- 5 ND ND 0.78 J 0.45 J ND ND ug/L 10/24/12 0.19 -- 5 ND ND 0.56 J 0.81 J ND ND ug/L 04/24/13 0.39 -- 5 ND ND ND 0.59 J ND ND ug/L 09/10/13 0.19 -- 5 ND ND 0.85 J 0.67 J 0.41 J ND ug/L 04/22/14 0.19 -- 5 ND ND 0.92 J 0.55 J ND ND ug/L 10/06/14 0.19 -- 5 ND ND 1.3 ND ND ND ug/L 04/07/15 0.19 -- 5 ND 0.41 1 1.3 1 0.7 J ND ND ug/L 10/07/15 0.19 -- 5 ND ND 1.4 J 0.84 J ND ND ug/L 04/26/16 0.19 -- 5 ND ND 1.1 J 0.44 J ND ND ug/L 09/28/16 0.19 -- 5 ND ND 1.5 J 0.83 J ND ND ug/L 04/27/17 0.19 -- 5 ND ND 0.94 J 0.56 J ND ND ug/L 10/17/17 0.19 -- 5 ND ND 1.5 J 0.82 J ND ND ug/L 04/16/18 0.19 -- 5 ND ND 1.5 J ND ND ND ug/L 10/18/18 0.19 1.0 -- ND ND 1.7 ND ND ND ug/L 04/08/19 0.19 1.0 -- ND 0.43 J ND ND ND ND 1,4-Dichlorobenzene ug/L 03/01/00 -- -- 5 ND ND ND ND ND ND NC 2L = 6 ug/L ug/L 09/01/00 -- -- 5 ND ND ND ND ND ND EPA MCL = 75 ug/L ug/L 03/01/01 -- -- 5 ND ND ND ND ND ND ug/L 09/01/01 -- -- 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 5.6 ND ug/L 03/01/04 -- -- 5 ND ND ND ND ND ND ug/L 09/01/04 -- -- 5 ND ND ND ND 5.6 ND ug/L 05/01/05 -- -- 5 ND ND ND ND 5.0 ND ug/L 10/01/05 -- -- 5 ND 5.0 ND 6.0 ND ND ug/L 04/01/06 -- -- 5 ND ND ND ND 5.0 ND ug/L 10/01/06 -- -- 5 ND ND ND ND 5.0 ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND ug/L 09/25/07 -- -- -- 0.15 3.5 1.4 4.1 5.4 ND ug/L 05/02/08 0.20 -- 1 ND 4.6 1.7 3.8 5.1 ND ug/L 12/05/08 0.38 -- 1 ND 0.27 1.8 4.0 3.5 ND ug/L 04/16/09 0.38 -- 1 -- 5.1 1.4 2.9 4.6 ND ug/L 10/07/09 0.38 -- 1 ND ND ND 4.6 4.1 ND ug/L 04/28/10 0.1 -- 1 ND 4.2 1.6 4.1 3.8 ND ug/L 10/11/10 0.38 -- 1 ND 3.9 1.6 4.5 2.3 ND ug/L 05/10/11 0.79 -- 1 ND 3.4 ND ND ND ND ug/L 10/06/11 0.79 -- 1 ND 3.6 ND 3.9 3.7 ND ug/L 04/16/12 0.19 -- 1 ND 3.6 1.0 2.3 2.5 ND ug/L 10/24/12 0.19 -- 1 ND 3.1 1.4 3.9 3.2 ND ug/L 04/24/13 0.14 -- 1 ND ND 0.82 J 2.9 2.4 ND ug/L 09/10/13 0.19 -- 1 ND 3.6 ND 3.1 3.9 ND ug/L 04/22/14 0.19 -- 1 ND 5.1 1.0 2.7 4.6 ND ug/L 10/06/14 0.19 -- 1 ND 4.9 1.6 2.2 5.0 ND ug/L 04/07/15 0.19 -- 1 ND 5.3 1.2 3.5 3.4 ND ug/L 10/07/15 0.19 -- 1 ND 3.6 1.7 4.7 0.53 J ND ug/L 04/26/16 0.19 -- 1 ND 4.7 1.3 2.4 2.4 ND ug/L 09/28/16 0.19 -- 1 ND 4.7 1.6 4.2 2.7 ND ug/L 04/27/17 0.19 -- 1 ND 6.1 ND 3.0 3.2 ND ug/L 10/17/17 0.19 -- 1 ND 5.5 2.1 4.5 3.8 ND ug/L 04/16/18 0.19 -- 1 ND 5.8 1.7 1.9 3.5 ND ug/L 10/18/18 0.19 1.0 -- ND 6.4 ND 2.2 4.4 ND ug/L 04/08/19 0.19 1.0 -- ND 6.0 0.94 J 0.71 J 3.1 ND 1,1-Dichloroethane ug/L 03/01/00 -- -- 5 ND ND ND ND ND ND NC 2L = 6 ug/L ug/L 09/01/00 -- -- 5 ND ND ND 5.8 ND ND (No EPA MCL) ug/L 03/01/01 -- -- 5 ND ND ND 5.0 ND ND ug/L 09/01/01 -- -- 5 ND ND ND 5.6 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 5.0 ND ND ug/L 04/01/06 -- -- 5 ND ND ND ND ND ND ug/L 10/01/06 -- -- 5 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND 1.3 J ND 1.6 J ND ND ug/L 09/25/07 -- -- -- ND 1.7 J ND 2.9 J ND ND ug/L 05/02/08 0.33 -- 5 ND 1.3 J ND 2.0 J ND ND ug/L 12/05/08 0.33 -- 5 ND 0.54 ND 3.2 J ND ND ug/L 04/16/09 0.33 -- 5 -- 1.0 J ND 1.4 J ND ND ug/L 10/07/09 0.33 -- 5 ND 1.4 J ND 2.6 J ND ND ug/L 04/28/10 0.05 -- 5 ND 1.2 J ND 2.0 J ND ND ug/L 10/11/10 0.33 -- 5 ND 1.4 J ND 2.6 J ND ND ug/L 05/10/11 0.08 -- 5 ND 0.97 J 0.08 2.0 J ND ND ug/L 10/06/11 0.08 -- 5 ND 1.2 J ND 2.3 J ND ND ug/L 04/16/12 0.13 -- 5 ND 1.0 J ND 1.5 J ND ND ug/L 10/24/12 0.13 -- 5 ND 0.72 J ND 2.3 J ND ND ug/L 04/24/13 0.28 -- 5 ND 0.71 J ND 1.9 J ND ND ug/L 09/10/13 0.13 -- 5 ND 0.67 J 0.13 2.2 J ND ND ug/L 04/22/14 0.13 -- 5 ND 0.56 J ND 1.2 J ND ND ug/L 10/06/14 0.13 -- 5 ND 0.74 J ND 1.5 ND ND ug/L 04/07/15 0.13 -- 5 ND ND ND 1.5 J ND ND ug/L 10/07/15 0.13 -- 5 ND 1.0 J ND 3.2 J ND ND ug/L 04/26/16 0.13 -- 5 ND 0.45 J ND 2.0 J ND ND ug/L 09/28/16 0.13 -- 5 ND 0.86 J ND 2.9 J ND ND ug/L 04/27/17 0.13 -- 5 ND 0.47 J ND 1.6 J ND ND ug/L 10/17/17 0.13 -- 5 ND 0.52 J ND 2.6 J ND ND ug/L 04/16/18 0.13 -- 5 ND 0.50 J ND 1.3 J ND ND ug/L 10/18/18 0.13 1.0 -- ND 0.51 J ND 1.8 ND ND ug/L 04/08/19 0.13 1.0 -- ND ND ND ND ND ND 4 GOLDER 6of8 April 2019 TABLE 4 1668421.105 Summary of Groundwater Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina Detected Monitoring Reporting Sample Method Detection rac ica Quantitation Reporting Upgradient Well Downgradient Wells Blanks Constituent/Parameter Units Date MW-13 1-1 1-2 1-3 1-4 1,2-Dichloroethene ug/L 03/01/00 -- -- 5 ND ND ND ND ND -- NC 2L = 0.4 ug/L ug/L 09/01/00 -- -- 5 ND ND ND ND ND -- EPA MCL = 5 ug/L ug/L 03/01/01 -- -- 5 ND ND ND ND ND -- ug/L 09/01/01 -- -- 5 ND ND ND ND ND -- ug/L 03/01/02 -- -- 5 ND ND ND ND ND -- ug/L 09/01/02 -- -- 5 ND ND ND ND ND -- ug/L 04/01/03 -- -- 5 ND ND ND ND ND -- ug/L 10/01/03 -- -- 5 ND ND ND ND ND -- ug/L 03/01/04 -- -- 5 ND ND ND ND ND -- ug/L 09/01/04 -- -- 5 ND ND ND ND ND -- ug/L 05/01/05 -- -- 5 ND ND ND ND ND -- ug/L 10/01/05 -- -- 5 ND ND ND ND ND -- ug/L 04/01/06 -- -- 5 ND ND ND ND ND -- ug/L 10/01/06 -- -- 5 ND ND ND ND ND -- ug/L 04/10/07 -- -- -- ND ND ND ND ND -- ug/L 09/25/07 -- -- -- ND ND ND ND ND -- ug/L 05/02/08 0.46 -- 1 ND ND ND ND ND -- ug/L 12/05/08 0.65 -- 1 ND 1.6 J ND ND ND -- ug/L 04/16/09 0.65 -- 1 -- ND ND ND ND -- ug/L 10/07/09 0.65 -- 1 ND ND ND ND ND -- ug/L 04/28/10 0.082 -- 1 ND ND ND ND ND ND ug/L 10/11/10 0.65 -- 1 ND ND ND ND ND ND ug/L 05/10/11 0.47 -- 1 ND ND ND ND ND ND ug/L 10/06/11 0.47 -- 1 ND ND ND ND ND ND ug/L 04/16/12 0.21 -- 1 ND ND ND ND ND ND ug/L 10/24/12 0.21 -- 1 ND ND ND ND ND ND ug/L 04/24/13 0.24 -- 1 ND ND ND ND ND ND ug/L 09/10/13 0.21 -- 1 ND ND ND ND ND ND ug/L 04/22/14 0.21 -- 1 ND ND ND ND ND ND ug/L 10/06/14 0.21 -- 1 ND ND ND ND ND -- ug/L 04/07/15 0.21 -- 1 ND ND ND ND ND -- ug/L 10/07/15 0.21 -- 1 ND ND ND ND ND -- ug/L 04/26/16 0.21 -- 1 ND ND ND ND ND -- ug/L 09/28/16 0.21 -- 1 ND ND ND ND ND -- ug/L 04/27/17 0.21 -- 1 ND ND ND ND ND ND ug/L 10/17/17 0.21 -- 1 ND ND ND ND ND ND ug/L 04/16/18 0.21 -- 1 ND ND ND ND ND ND ug/L 10/18/18 0.21 1.0 -- ND ND ND ND ND ND ug/L 04/08/19 0.21 1.0 -- ND ND ND ND ND ND 1, 1 -Dichloroethene ug/L 03/01/00 -- -- 5 ND ND ND ND ND ND NC 2L = 7 ug/L ug/L 09/01/00 -- -- 5 ND ND ND ND ND ND EPA MCL = 7 ug/L ug/L 03/01/01 -- -- 5 ND ND ND ND ND ND ug/L 09/01/01 -- -- 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 04/01/06 -- -- 5 ND ND ND ND ND ND ug/L 10/01/06 -- -- 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 0.45 J ND ND ug/L 05/02/08 0.2 -- 5 ND ND ND ND ND ND ug/L 12/05/08 0.24 -- 5 ND 0.65 ND 0.56 J ND ND ug/L 04/16/09 0.24 -- 5 -- ND ND ND ND ND ug/L 10/07/09 0.24 -- 5 ND ND ND 0.46 J ND ND ug/L 04/28/10 0.15 -- 5 ND ND ND ND ND ND ug/L 10/11/10 0.24 -- 5 ND ND ND 0.48 J ND ND ug/L 05/10/11 0.6 -- 5 ND ND ND ND ND ND ug/L 10/06/11 0.6 -- 5 ND ND ND ND ND ND ug/L 04/16/12 0.21 -- 5 ND ND ND ND ND ND ug/L 10/24/12 0.21 -- 5 ND ND ND 0.4 J ND ND ug/L 04/24/13 0.31 -- 5 ND ND ND 0.37 J ND ND ug/L 09/10/13 0.21 -- 5 ND ND ND 0.47 J ND ND ug/L 04/22/14 0.21 -- 5 ND ND ND ND ND ND ug/L 10/06/14 0.21 -- 5 ND ND ND ND ND ND ug/L 04/07/15 0.21 -- 5 ND ND ND ND ND ND ug/L 10/07/15 0.21 -- 5 ND ND ND ND ND ND ug/L 04/26/16 0.21 -- 5 ND ND ND ND ND ND ug/L 09/28/16 0.21 -- 5 ND ND ND 0.8 J ND ND ug/L 04/27/17 0.21 -- 5 ND ND ND ND ND ND ug/L 10/17/17 0.21 -- 5 ND ND ND 0.68 J ND ND ug/L 04/16/18 0.21 -- 5 ND ND ND ND ND ND ug/L 10/18/18 0.21 1.0 -- ND ND ND ND ND ND ug/L 04/08/19 0.21 1.0 -- ND ND ND ND ND ND cis- 1,2-Dichloroethene ug/L 03/01/00 -- -- 5 ND ND ND ND ND ND NC 2L = 70 ug/L ug/L 09/01/00 -- -- 5 ND ND ND ND ND ND EPA MCL = 70 ug/L ug/L 03/01/01 -- -- 5 ND ND ND ND ND ND ug/L 09/01/01 -- -- 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 04/01/06 -- -- 5 ND ND ND ND ND ND ug/L 10/01/06 -- -- 5 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND 0.34 J 0.69 J ND ND ug/L 09/25/07 -- -- -- ND 2.2 J 0.45 J 1.3 J 0.14 ND ug/L 05/02/08 0.30 -- 5 ND 1.3 J 0.42 J 0.77 J ND ND ug/L 12/05/08 0.36 -- 5 ND ND ND ND ND ND ug/L 04/16/09 0.36 -- 5 -- 1.2 J 0.58 J 0.67 J ND ND ug/L 10/07/09 0.36 -- 5 ND 2.4 J 0.62 J 1.4 J ND ND ug/L 04/28/10 0.075 -- 5 ND 1.9 J 0.61 J 0.87 J ND ND ug/L 10/11/10 0.36 -- 5 ND 2.2 J 0.51 J 1.1 J ND ND ug/L 05/10/11 0.72 -- 5 ND 1.1 J ND 0.89 J ND ND ug/L 10/06/11 0.72 -- 5 ND 1.5 J ND 1.1 J ND ND ug/L 04/16/12 0.15 -- 5 ND 0.86 J 0.55 J 0.63 J ND ND ug/L 10/24/12 0.15 -- 5 ND 0.62 J ND 0.8 J ND ND ug/L 04/24/13 0.27 -- 5 ND 0.73 J ND 0.85 J ND ND ug/L 09/10/13 0.15 -- 5 ND 0.98 1 0.48 1 0.87 J ND ND ug/L 04/22/14 0.15 -- 5 ND 0.52 J ND ND ND ND ug/L 10/06/14 0.15 -- 5 ND 0.61 J ND ND ND ND ug/L 04/07/15 0.15 -- 5 ND 0.44 J ND 0.52 J ND ND ug/L 10/07/15 0.15 -- 5 ND 0.94 J 0.41 J 0.87 J ND ND ug/L 04/26/16 0.15 -- 5 ND 0.51 J ND 0.43 J ND ND ug/L 09/28/16 0.15 -- 5 0.15 0.77 J ND ND ND ND ug/L 04/27/17 0.15 -- 5 ND 0.57 J ND 0.49 J ND ND ug/L 10/17/17 0.15 -- 5 ND 0.47 J ND 0.64 J ND ND ug/L 04/16/18 0.15 -- 5 ND 0.56 J ND ND ND ND ug/L 10/18/18 0.15 1.0 -- ND ND ND ND ND ND ug/L 04/08/19 0.15 1.0 -- ND 0.65 J ND ND ND ND 4 GOLDER 7of8 April 2019 TABLE 4 1668421.105 Summary of Groundwater Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina Detected Monitoring Reporting Sample Method rac ica Upgradient Well Downgradient Wells Constituent/Parameter Units Date Detection Quantitation Reporting Lomut Blanks MW-13 1-1 1-2 1-3 1-4 Methylene Chloride ug/L 03/01/00 -- -- 10 ND ND ND ND ND ND NC 2L = 5 ug/L ug/L 09/01/00 -- -- 10 ND ND ND ND ND ND EPA MCL = 5 ug/L ug/L 03/01/01 -- -- 10 ND ND ND ND ND ND ug/L 09/01/01 -- -- 10 ND ND ND ND ND ND ug/L 03/01/02 -- -- 10 ND ND ND ND ND ND ug/L 09/01/02 -- -- 10 ND ND ND ND ND ND ug/L 04/01/03 -- -- 10 ND ND ND ND ND ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND ND ug/L 03/01/04 -- -- 10 ND ND ND ND ND ND ug/L 09/01/04 -- -- 10 ND ND ND ND ND ND ug/L 05/01/05 -- -- 10 ND ND ND ND ND ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND ND ug/L 04/01/06 -- -- 10 ND ND ND ND ND ND ug/L 10/01/06 -- -- 10 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND 0.51 J ND ND 0.088 ND ug/L 09/25/07 -- -- -- ND ND ND ND ND ND ug/L 05/02/08 0.24 -- 1 ND ND ND ND ND ND ug/L 12/05/08 0.53 -- 1 ND ND ND ND ND ND ug/L 04/16/09 0.53 -- 1 -- ND ND ND ND ND ug/L 10/07/09 0.53 -- 1 ND 0.76 J ND ND ND ND ug/L 04/28/10 0.07 -- 1 ND ND ND ND ND ND ug/L 10/11/10 0.53 -- 1 ND 0.77 J ND ND ND ND ug/L 05/10/11 0.14 -- 1 ND ND ND ND ND ND ug/L 10/06/11 0.14 -- 1 ND ND ND ND ND ND ug/L 04/16/12 0.23 -- 1 ND 0.37 J ND ND ND ND ug/L 10/24/12 0.23 -- 1 ND ND ND ND ND ND ug/L 04/24/13 0.50 -- 1 ND ND ND ND ND ND ug/L 09/10/13 0.23 -- 1 ND ND ND ND ND ND ug/L 04/22/14 0.23 -- 1 ND ND ND ND ND ND ug/L 10/06/14 0.23 -- 1 ND ND ND ND ND ND ug/L 04/07/15 0.23 -- 1 ND ND ND ND ND ND ug/L 10/07/15 0.23 -- 1 ND ND ND ND ND ND ug/L 04/26/16 0.23 -- 1 ND ND ND ND ND ND ug/L 09/28/16 0.23 -- 1 ND ND ND ND ND ND ug/L 04/27/17 0.23 -- 1 ND ND ND ND ND ND ug/L 10/17/17 0.23 -- 1 ND ND ND ND ND ND ug/L 04/16/18 0.23 -- 1 ND ND ND ND ND ND ug/L 10/18/18 0.23 1.0 -- ND ND ND ND ND ND ug/L 04/08/19 0.23 1.0 -- ND ND 0.78 B ND ND 0.5 J Vinyl Chloride ug/L 03/01/00 -- -- 10 ND ND ND ND ND ND NC 2L = 0.03 ug/L ug/L 09/01/00 -- -- 10 ND ND ND ND ND ND EPA MCL = 2 ug/L ug/L 03/01/01 -- -- 10 ND ND ND ND ND ND ug/L 09/01/01 -- -- 10 ND ND ND ND ND ND ug/L 03/01/02 -- -- 10 ND ND ND ND ND ND ug/L 09/01/02 -- -- 10 ND ND ND ND ND ND ug/L 04/01/03 -- -- 10 ND ND ND ND ND ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND ND ug/L 03/01/04 -- -- 10 ND ND ND ND ND ND ug/L 09/01/04 -- -- 10 ND ND ND ND ND ND ug/L 05/01/05 -- -- 10 ND ND ND ND ND ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND ND ug/L 04/01/06 -- -- 10 ND ND ND ND ND ND ug/L 10/01/06 -- -- 10 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- 0.15 J 0.72 J 0.54 J 0.63 J ND ND ug/L 09/25/07 -- -- -- ND 0.56 J ND 0.77 J ND ND ug/L 05/02/08 0.3 -- 1 ND 0.64 J 0.9 J 0.65 J ND ND ug/L 12/05/08 0.3 -- 1 ND 0.36 ND 0.67 J ND ND ug/L 04/16/09 0.3 -- 1 -- ND 0.46 J ND ND ND ug/L 10/07/09 0.3 -- 1 ND 0.49 J ND ND ND ND ug/L 04/28/10 0.083 -- 1 ND 0.52 J 0.62 J 0.44 J ND ND ug/L 10/11/10 0.3 -- 1 ND 0.51 J ND ND ND ND ug/L 05/10/11 0.6 -- 1 ND ND ND ND ND ND ug/L 10/06/11 0.6 -- 1 ND ND ND ND ND ND ug/L 04/16/12 0.32 -- 1 ND 0.45 J 0.48 J ND ND ND ug/L 10/24/12 0.32 -- 1 ND ND ND ND ND ND ug/L 04/24/13 0.28 -- 1 ND 0.45 J ND 0.45 J ND ND ug/L 09/10/13 0.32 -- 1 ND ND 0.45 J ND ND ND ug/L 04/22/14 0.32 -- 1 ND ND ND ND ND ND ug/L 10/06/14 0.32 -- 1 ND ND ND ND ND ND ug/L 04/07/15 0.32 -- 1 ND ND ND ND ND ND ug/L 10/07/15 0.32 -- 1 ND ND 0.65 J 0.59 J ND ND ug/L 04/26/16 0.32 -- 1 ND ND ND 0.47 J ND ND ug/L 09/28/16 0.32 -- 1 ND ND ND 0.52 J ND ND ug/L 04/27/17 0.32 -- 1 ND ND ND ND ND ND ug/L 10/17/17 0.32 -- 1 ND ND ND 0.45 J ND ND ug/L 04/16/18 0.32 -- 1 ND ND ND ND ND ND ug/L 10/18/18 0.32 1.0 -- ND ND ND ND ND ND ug/L 04/08/19 0.32 1.0 -- ND ND ND ND ND ND 1,4-Dioxane ug/L 10/18/18 1.2 2.0 -- ND 240 250 300 60 ND (NC 2L = 3 ug/L) ug/L 04/08/19 1.2 2.0 -- ND 210 33 46 55 ND Notes: mg/L = ug/L = NC 2L = IMAC = EPA MCL J= B= ND = Blanks = Bold = Shaded = MDL = SWS Reporting Limit = milligrams per liter micrograms per liter North Carolina Water Quality Standard Interim Maximum Allowable Concentration (under NC 2L Rules) United States Environmental Protection Agency Maximum Contaminant Limit Prior to the 11/18 event, J flags are estimated values below the SWS Reporting limit. Starting with the 11/18 event, J flags are estimated values between MDL and PQL. blank -qualified data not detected above the laboratory detection limit or stated reporting limit no data available or no limit established EPA Action Level EPA Secondary MCL field, trip and method blanks concentrations above applicable IMAC and/or NC 2L have been bolded. concentrations above applicable EPA MCL have been shaded. laboratory method detection limit Data prior to April 2017 provided by S&ME Engineering Laboratory method blank data was unavailable prior to April 2017. However, B flags for the 04/16/09, 10/07/09, and 10/11/10 were present on laboratory electronic files. The following dilutions were noted for the October 2018 event: 1,4-dioxane by 5x (1-1), antimony and thallium by 2x (all points). NCPQL prior to 2007 and NCSWSL starting on 01/18/07 J GOLDER M. • April 2019 1668421.105 TABLE 5 Summary of Groundwater Field Parameters White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina Detected Monitoring Reporting Sample Upgradient Well Downgradient Wells MW-13 1-1 1-2 1-3 1-4 Constituent/Parameter Units Date pH (Field) S.U. 03/27/00 6.61 6.31 6.69 7.17 6.67 S.U. 09/13/00 15.70 6.59 5.84 6.68 6.49 S.U. 03/12/01 6.55 5.62 6.19 6.34 -- S.U. 09/13/01 6.29 5.58 6.01 6.25 6.80 S.U. 03/07/02 7.48 5.59 6.02 6.26 6.60 S. U. 09/18/02 6.44 5.77 6.08 6.37 6.64 S. U. 04/15/03 -- 6.08 6.39 6.61 6.71 S. U. 10/15/03 6.75 5.79 6.31 6.64 6.75 S. U. 03/24/04 8.02 7.80 7.81 7.80 8.17 S. U. 09/22/04 6.96 5.94 6.76 6.60 6.96 S. U. 05/10/05 8.58 8.03 8.14 8.27 8.50 S. U. 10/11 /05 6.5 5.54 5.95 6.18 6.60 S. U. 04/24/06 -- 5.65 6.21 6.40 6.89 S. U. 10/16/06 -- 5.49 5.96 6.19 6.60 S. U. 04/10/07 6.35 5.62 6.19 6.46 6.95 S. U. 09/25/07 6.49 5.64 6.18 6.36 6.49 S. U. 05/02/08 6.48 5.60 6.31 6.61 7.01 S. U. 12/05/08 7.29 5.80 6.63 6.50 7.07 S.U. 04/16/09 7.29 6.40 6.82 7.11 7.46 S.U. 10/07/09 9.18 7.44 7.97 8.15 8.81 S.U. 04/28/10 6.6 5.67 6.08 6.30 6.78 S.U. 10/05/10 7.5 6.38 6.94 7.06 7.55 S.U. 05/10/11 -- 7.35 8.37 7.96 8.55 S.U. 10/06/11 7.61 6.14 7.12 6.89 7.69 S. U. 04/16/12 7.83 6.40 7.03 7.41 7.87 S. U. 10/24/12 7.88 7.49 8.25 7.66 8.59 S. U. 04/24/13 8.29 7.07 8.05 8.00 8.77 S. U. 09/09/13 8.33 6.76 7.22 7.31 8.12 S. U. 04/22/14 8.4 5.55 6.64 7.03 8.52 S. U. 10/01 /14 7.69 6.04 6.70 6.85 7.43 S. U. 04/07/15 6.76 5.82 6.15 6.33 6.67 S. U. 10/06/15 6.47 5.48 5.89 5.97 6.35 S. U. 04/18/16 6.36 5.87 6.19 6.38 6.82 S. U. 09/26/16 6.54 5.64 5.99 6.11 6.57 S. U. 04/25/17 6.46 5.82 6.25 6.32 6.73 S. U. 10/16/17 6.55 5.75 6.28 6.22 6.68 S. U. 04/16/18 6.50 5.70 6.09 6.31 6.66 S.U. 10/18/18 6.39 5.84 6.08 6.21 6.70 S.U. 04/08/19 6.67 5.78 6.53 6.54 6.79 Specific Conductance (Field) us/cm 03/27/00 353 877 1361 1687 1989 us/cm 09/13/00 335 971 1485 660 875 us/cm 03/12/01 7520 -- -- -- -- us/cm 09/13/01 88838 73234 68639 71673 65394 us/cm 03/07/02 676 1692 2240 2127 3445 us/cm 09/18/02 658 1619 2300 2913 2319 us/cm 04/15/03 -- 1650 1464 2040 1950 us/cm 10/15/03 480 1650 1890 2640 2720 us/cm 03/24/04 428 1650 1990 624 2690 us/cm 09/22/04 472 1690 1179 2720 1094 us/cm 05/10/05 434 1510 2030 2570 5560 us/cm 10/11 /05 576 1930 2430 3020 1700 us/cm 04/24/06 -- 2080 2540 3010 3010 us/cm 10/16/06 -- 2090 2590 3020 2600 us/cm 04/10/07 514 219 252 289 267 us/cm 09/25/07 582 2210 2570 3170 2570 us/cm 05/02/08 45.7 289 270 295 267 us/cm 12/05/08 5390 2490 1410 3470 2200 us/cm 04/16/09 539 3440 2290 2760 2420 us/cm 10/07/09 552 2580 2720 3410 2160 us/cm 04/28/10 439 2220 2270 2640 1840 us/cm 10/05/10 446 2240 2380 3000 630 us/cm 05/10/11 -- 3010 1020 2670 1980 us/cm 10/06/11 447 2620 1290 2980 1270 us/cm 04/16/12 416 3060 2230 2480 1960 us/cm 10/24/12 399 3270 280 2910 2030 us/cm 04/24/13 410 3210 1336 2740 1880 us/cm 09/09/13 414 3280 2370 2900 1840 us/cm 04/22/14 395 3300 2930 2440 2010 us/cm 10/01 /14 425 3400 2580 3320 193 us/cm 04/07/15 268 2140 1610 1920 1260 us/cm 10/06/15 304 2341 2017 2424 1239 us/cm 04/18/16 323 2515 1803 1798 1338 us/cm 09/26/16 340 2581 2076 2324 1390 us/cm 04/25/17 362 3197 1039 2454 1286 us/cm 10/16/17 367 3260 1897 2843 1706 us/cm 04/16/18 321 2992 2089 2224 1633 us/cm 10/18/18 317 2662 1985 2146 1363 us/cm 04/08/19 368 3111 895 1301 1813 Temperature (Field) °C 03/27/00 14.30 13.95 15.40 14.57 11.62 °C 09/13/00 15.70 17.43 18.05 17.22 17.91 °C 03/12/01 15.04 13.65 15.04 14.75 -- °C 09/13/01 15.73 18.52 18.86 17.28 19.88 °C 03/07/02 14.25 13.33 13.83 14.22 11.08 °C 09/18/02 10.56 12.05 12.80 11.62 12.97 °C 04/15/03 -- 13.83 14.52 15.71 12.16 °C 10/15/03 14.67 16.45 17.50 16.33 17.17 °C 03/24/04 14.42 13.17 14.11 13.72 10.83 °C 09/22/04 16.30 15.95 17.17 15.72 17.61 °C 05/10/05 19.24 17.81 20.04 18.42 20.55 °C 10/11 /05 12.80 18.38 19.14 19.47 19.14 °C 04/24/06 -- 15.69 17.92 17.35 15.53 °C 10/16/06 -- 15.79 16.82 16.15 17.20 °C 04/10/07 14.57 15.93 15.79 16.05 13.48 °C 09/25/07 23.41 22.48 24.49 19.37 21.12 °C 05/02/08 14.55 18.70 21.71 19.93 20.64 °C 12/05/08 14.53 11.64 12.02 12.46 11.01 °C 04/16/09 14.53 14.76 16.12 14.76 13.94 °C 10/07/09 13.65 18.32 19.72 18.38 20.45 °C 04/28/10 14.56 14.70 16.97 13.99 14.56 °C 10/05/10 18.37 18.19 17.54 18.28 17.41 °C 05/10/11 -- 19.77 21.08 19.87 18.46 °C 10/06/11 18.70 20.90 20.23 18.60 19.28 °C 04/16/12 14.07 19.88 22.31 20.35 20.01 °C 10/24/12 12.98 12.90 19.12 20.00 19.20 °C 04/24/13 13.74 16.77 18.17 17.81 11.65 °C 09/09/13 23.09 18.62 25.21 19.86 20.92 °C 04/22/14 16.52 19.69 26.28 21.77 10.79 °C 10/01 /14 11.86 17.04 18.64 17.64 18.84 °C 04/07/15 13.96 16.12 15.98 15.68 16.22 °C 10/06/15 15.81 17.01 16.63 14.50 17.89 °C 04/18/16 16.29 18.46 18.34 13.97 16.12 °C 09/26/16 18.06 20.33 23.90 20.57 21.39 °C 04/25/17 14.35 14.78 16.55 15.23 15.11 °C 10/16/17 14.77 15.93 17.89 16.67 18.34 °C 04/16/18 14.3 12.7 14.9 14.9 14.5 °C 10/18/18 16.3 15.9 18.4 16.3 18.7 °C 04/08/19 1 15.7 1 13.9 15.5 15.4 14.9 ,,> GOLDER 1 of 2 April 2019 1668421.105 TABLE 5 Summary of Groundwater Field Parameters White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina Detected Monitoring Reporting Sample Upgradient Well Downgradient Wells MW-13 1-1 1-2 1-3 1-4 Constituent/Parameter Units Date Turbidity (Field) NTU 05/10/05 1.01 3.97 250 36.8 574 NTU 10/11/05 10.0 3.02 411 126 551 NTU 04/24/06 -- 7.18 250 39 398 NTU 10/16/06 -- 1.78 200 23.4 493 NTU 04/10/07 -- -- -- -- -- NTU 09/25/07 -- -- -- -- -- NTU 05/02/08 -- -- -- -- -- NTU 12/05/08 4.42 -- -- -- -- NTU 04/16/09 -- -- -- -- -- NTU 10/07/09 -- -- -- -- -- NTU 04/28/10 6.98 35.2 33.8 8.54 199 NTU 10/05/10 3.28 4.63 44.1 10.01 196 NTU 05/10/11 -- -- -- -- -- NTU 10/06/11 6.75 7.00 48.6 21.5 264 NTU 04/16/12 4.28 14.45 30.1 16.84 152 NTU 10/24/12 4.65 13.63 152 11.85 160 NTU 04/24/13 9.00 21.2 61.5 12.33 248 NTU 09/09/13 4.16 5.42 16.03 8.80 63.9 NTU 04/22/14 4.72 19.6 42.1 5.37 48 NTU 10/01 /14 5.76 5.14 26 61 11.92 NTU 04/07/15 3.34 24.7 106 6.52 34 NTU 10/06/15 1.62 2.41 54.3 2.96 27.7 NTU 04/18/16 2.01 12.09 40.9 1.05 51 NTU 09/26/16 21.3 2.59 38.5 1.20 14 NTU 04/25/17 10.3 21.4 40.9 1.89 48.9 NTU 10/16/17 3.58 0.58 22.9 3.78 7.04 NTU 04/16/18 2.56 8.37 102 6.37 8.86 NTU 10/18/18 3.07 2.13 19.5 366 15.7 NTU 04/08/19 3.46 7.18 45.0 6.47 17.0 Oxidation Reduction my 05/10/05 -65 -250 -322 -313 -278 Potential (Field) my 10/11/05 197 -78 -26 -54 -7 my 04/24/06 -- 58 -129 -89 -107 my 10/16/06 -- -65 -159 -138 -207 my 04/10/07 -- -- -- -- -- mv 09/25/07 -- -- -- -- -- mv 05/02/08 -- -- -- -- -- mv 12/05/08 105 -- -- -- -- mv 04/16/09 -- -- -- -- -- mv 10/07/09 -- -- -- -- -- mv 04/28/10 288 281 84 108 51 my 10/05/10 244 287 105 123 82 my 05/10/11 -- -- -- -- -- mv 10/06/11 166 185 4 87 -63 my 04/16/12 171 134 33 62 -65 my 10/24/12 127 73 -37 63 -109 my 04/24/13 178 89 -70 49 -102 my 09/09/13 116 106 25 63 -90 my 04/22/14 118 164 92 125 -78 my 10/01 /14 109 45 -70 -45 -133 my 04/07/15 50 36 0 16 -73 my 10/06/15 -38.4 123 -12 54 106 my 04/18/16 135 63 6 32 -107 my 09/26/16 42.2 22 -32 20 -59 my 04/25/17 154.9 32.9 -18.0 41.8 -68.0 my 10/16/17 154.1 81.7 -42.2 54.2 -88.4 my 04/16/18 364.8 214.4 47.6 201.6 -108.9 my 10/18/18 158.7 -4.1 -29.7 150.3 -56.2 my 04/08/19 41.2 96.8 -43.8 68.2 -102.4 Dissolved Oxygen (Field) mg/L 05/10/05 3.61 0.41 0.23 0.38 0.60 mg/L 10/11/05 5.69 2.21 0.65 0.82 0.42 mg/L 04/24/06 -- 0.60 0.23 0.40 0.18 mg/L 10/16/06 -- 1.10 0.40 0.41 0.14 mg/L 04/10/07 -- -- -- -- -- mg/L 09/25/07 -- -- -- -- -- mg/L 05/02/08 -- -- -- -- -- mg/L 12/05/08 5.01 -- -- -- -- mg/L 04/16/09 -- -- -- -- -- mg/L 10/07/09 -- -- -- -- -- mg/L 04/28/10 6.94 4.89 4.32 1.27 0.08 mg/L 10/05/10 3.49 1.91 2.27 0.55 0.05 mg/L 05/10/11 -- -- -- -- -- mg/L 10/06/11 4.49 1.19 3.38 0.65 0.22 mg/L 04/16/12 4.75 0.97 2.51 1.59 0.61 mg/L 10/24/12 3.75 1.45 0.77 0.90 0.21 mg/L 04/24/13 4.36 1.31 1.75 0.90 0.38 mg/L 09/09/13 5.95 3.46 4.18 2.84 0.41 mg/L 04/22/14 8.69 1.41 3.71 2.94 1.65 mg/L 10/01 /14 4.59 1.67 3.42 0.42 0.17 mg/L 04/07/15 5.52 4.83 2.76 3.97 0.91 mg/L 10/06/15 3.80 0.99 1.19 0.69 0.37 mg/L 04/18/16 6.18 1.11 0.98 0.59 0.19 mg/L 09/26/16 4.81 0.50 0.61 0.64 0.14 mg/L 04/25/17 3.65 0.40 2.69 0.60 0.20 mg/L 10/16/17 2.85 0.68 0.51 0.22 0.05 mg/L 04/16/18 3.38 0.47 0.63 0.59 0.16 mg/L 10/18/18 3.55 0.92 1.91 0.39 0.70 mg/L 04/08/19 3.43 0.14 0.84 0.32 1.01 Notes: S.U. = Standard Units NTU = Nephelometric Turbidity Units uS/cm = microsiemens per centimeter mg/L = milligrams per liter my = Millivolts -- = no data available Data prior to April 2017 provided by S&ME Engineering ,,> GOLDER 2of2 April 2019 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 Detection Quanitation Reporting Blanks (SW Standard) Units Date Limit Limit Limit SW-1 SW-2 SW-3 SW-4 SW-5 Antimony ug/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 ug/L 03/01/01 -- -- 30 ND ND ND ND ND ND ug/L 09/01/01 -- -- 30 ND ND ND ND ND ND ug/L 03/01 /02 -- -- 30 ND ND ND ND ND ND ug/L 09/01 /02 -- -- 30 ND ND ND ND ND ND ug/L 04/01 /03 -- -- 30 ND ND ND ND ND ND ug/L 10/01/03 -- -- 30 ND ND ND ND ND ND ug/L 03/01 /04 -- -- 30 ND ND ND ND ND ND ug/L 09/01 /04 -- -- 30 ND ND ND ND ND ND ug/L 05/01 /05 -- -- 30 ND ND N D ND ND ND ug/L 10/01/05 -- -- 30 ND ND ND ND ND ND ug/L 04/01 /06 -- -- 30 ND ND ND ND ND ND ug/L 10/01 /06 -- -- 30 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 0.68 -- 6 -- ND ND ND ND ND ug/L 12/04/08 0.68 -- 6 -- ND ND ND ND ND ug/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 0.337 B -- ug/L 04/30/10 0.22 -- 6 -- ND 0.272 J 0.225 J 0.258 J ND ug/L 10/11/10 0.22 -- 6 -- 0.329 J 0.254 J 0.233 J 0.221 J ND ug/L 05/12/11 0.22 -- 6 0.448 J ND 0.287 J 0.241 J 0.261 J ND ug/L 10/07/11 1.1 -- 6 ND ND ND 0.287 J 0.24 J ND ug/L 04/19/12 0.22 -- 6 0.279 J ND 0.34 J 0.308 J 0.284 J ND ug/L 10/26/12 0.22 -- 6 ND ND ND ND ND ND ug/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 ug/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 ug/L 04/06/15 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 ug/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 ug/L 04/28/17 0.37 -- 6 0.708 J ND 0.485 J ND ND ND ug/L 10/17/17 0.37 -- 6 0.455 J ND 0.490 J ND 0.654 J ND ug/L 04/16/18 1.85 -- 6 ND ND ND ND ND ND ug/L 10/18/18 1.85 5.00 -- ND ND ND ND ND ND ug/L 04/12/19 0.74 2.00 -- ND ND ND ND ND ND Arsenic ug/L 03/01/00 -- -- 10 ND ND ND ND ND ND SW Standard ug/L 09/01/00 -- -- 10 ND ND ND ND ND ND Human Health = 10 ug/L ug/L 03/01/01 -- -- 10 ND ND ND ND ND ND ug/L 09/01/01 -- -- 10 ND ND ND ND ND ND ug/L 03/01 /02 -- -- 10 N D ND ND ND ND ND ug/L 09/01 /02 -- -- 10 ND ND ND ND ND ND ug/L 04/01 /03 -- -- 10 ND ND ND ND ND ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND ND ug/L 03/01 /04 -- -- 10 ND N D ND ND N D N D ug/L 09/01 /04 -- -- 10 ND ND ND ND N D ND ug/L 05/01/05 -- -- 10 ND ND ND ND ND ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND ND ug/L 04/01 /06 -- -- 10 ND ND ND ND ND ND ug/L 10/01 /06 -- -- 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 2 -- 10 -- ND 2.4 J ND 2.2 J ND ug/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 ug/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 ug/L 10/11/10 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 ug/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 ug/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 ug/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 ug/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 ug/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 ug/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 ug/L 10/17/17 6.8 -- 10 ND ND ND ND ND ND ug/L 04/16/18 6.8 -- 10 ND ND ND 9.17 J ND ND ug/L 10/18/18 7.6 10.0 -- ND ND ND ND ND ND ug/L 04/12/19 7.6 10.0 -- ND ND ND ND ND ND Barium ug/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 mg/L ug/L 03/01/01 -- -- 500 ND ND ND ND ND ND ug/L 09/01/01 -- -- 500 ND N D ND ND ND ND ug/L 03/01 /02 -- -- 500 ND ND ND ND ND ND ug/L 09/01 /02 -- -- 500 ND ND ND ND ND ND ug/L 04/01 /03 -- -- 500 ND ND ND ND ND ND ug/L 10/01/03 -- -- 500 ND ND ND ND ND ND ug/L 03/01/04 -- -- 500 ND ND ND ND ND ND ug/L 09/01 /04 -- -- 500 ND ND ND ND ND ND ug/L 05/01 /05 -- -- 500 ND ND ND ND ND ND ug/L 10/01/05 -- -- 500 ND ND ND N D N D ND ug/L 04/01 /06 -- -- 500 ND ND ND ND ND ND ug/L 10/01 /06 -- -- 500 ND ND ND ND ND ND ug/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 ug/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 ug/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 -- 100 68.3 J 36.3 J 21.8 J 27.2 J 26.9 J ND ug/L 04/30/10 1 -- 100 -- 48.5 J 30.9 J 37.1 J 44.2 J ND ug/L 10/11/10 1 -- 100 -- 47.1 J 18.8 J 29.3 J 30.6 J ND ug/L 05/12/11 1 -- 100 77.3 J 39.3 J 40.3 J 35.3 J 37 J ND ug/L 10/07/11 1 -- 100 74.2 J 76.4 J 21.4 J 42.7 J 32.2 J ND ug/L 04/19/12 1 -- 100 43.7 J 48.4 J 23.5 J 33.7 J 33.7 J ND ug/L 10/26/12 1 -- 100 48.2 J 51.2 J 25.2 J 34.8 J 35.1 J ND ug/L 04/25/13 1 -- 100 57 J 65.1 J 28.5 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 ug/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 ug/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 ug/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 ug/L 04/28/17 1 -- 100 46.5 J 45.4 J 59.9 J 50.2 J 45.0 J ND ug/L 10/17/17 1 -- 100 40.1 J 33.6 J 55.8 J 41.2 J 37.8 J ND ug/L 04/16/18 1 -- 100 42.9 J 45.4 J 42.1 J 43.9 J 44.1 J ND ug/L 10/18/18 1.1 10.0 -- 56.6 57.4 56.4 61.7 61.3 ND ug/L 04/12/19 1.1 10.0 -- 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 ug/L 09/01/00 -- -- 2 ND ND ND ND ND ND Acute = 65 ug/L ug/L 03/01/01 -- -- 2 ND ND ND ND ND ND Chronic = 6.5 ug/L ug/L 09/01/01 -- -- 2 ND ND ND ND ND ND ug/L 03/01 /02 -- -- 2 ND ND ND ND ND ND ug/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 N D ND ug/L 10/01/03 -- -- 2 ND ND ND ND ND ND ug/L 03/01 /04 -- -- 2 ND ND ND ND ND ND ug/L 09/01 /04 -- -- 2 ND ND ND ND ND ND ug/L 05/01 /05 -- -- 2 ND ND ND ND ND ND ug/L 10/01/05 -- -- 2 ND ND ND ND ND ND ug/L 04/01/06 -- -- 2 ND ND ND ND ND ND ug/L 10/01/06 -- -- 2 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 0.7 -- 1 -- ND ND ND ND ND ug/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 ug/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 ug/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 ug/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 ug/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 ug/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 ug/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 ug/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 ug/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 ug/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 10/18/18 0.16 1.00 -- ND ND ND ND ND ND ug/L 04/12/19 0.16 1.00 -- ND ND ND ND ND ND 4 GOLDER 1 of 6 April 2019 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 Detection Quanitation Reporting Blanks (SW Standard) Units Date Limit Limit Limit SW-1 SW-2 SW-3 SW-4 SW-5 Cadmium ug/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 ug/L ug/L 03/01/01 -- -- 1 ND ND ND ND ND ND Chronic = 0.15 ug/L ug/L 09/01/01 -- -- 1 1.1 ND ND ND ND ND ug/L 03/01/02 -- -- 1 ND ND ND ND ND ND ug/L 09/01 /02 -- -- 1 ND 1.2 ND ND ND ND ug/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 ug/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 ug/L 05/01 /05 -- -- 1 ND ND ND ND ND ND ug/L 10/01/05 -- -- 1 ND ND ND ND ND ND ug/L 04/01/06 -- -- 1 ND ND ND ND ND ND ug/L 10/01/06 -- -- 1 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 0.5 -- 1 -- ND ND ND ND ND ug/L 12/04/08 0.36 -- 1 -- ND ND ND ND ND ug/L 04/13/09 0.09 -- 1 -- 0.14 1 0.17 1 0.26 1 0.21 1 ND ug/L 10/20/09 0.36 -- 1 0.477 1 ND ND ND ND ND ug/L 04/30/10 0.36 -- 1 -- ND ND ND ND ND ug/L 10/11/10 0.36 -- 1 -- ND ND ND ND ND ug/L 05/12/11 0.36 -- 1 0.471 1 ND ND ND ND ND ug/L 10/07/11 0.36 -- 1 ND ND ND ND ND ND ug/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 ug/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 ug/L 04/25/14 0.36 -- 1 ND ND ND ND ND ND ug/L 10/02/14 0.36 -- 1 0.661 1 ND ND ND ND ND ug/L 04/06/15 0.36 -- 1 ND ND ND ND ND ND ug/L 10/07/15 0.36 -- 1 0.784 1 ND ND 5.66 ND ND ug/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 ug/L 04/28/17 0.36 -- 1 ND ND ND ND ND ND ug/L 10/17/17 0.36 -- 1 ND ND ND ND ND ND ug/L 04/16/18 0.36 -- 1 ND ND ND ND ND ND ug/L 10/18/18 0.36 1.00 -- ND ND ND ND ND ND ug/L 04/12/19 0.36 1.00 -- ND ND ND ND ND ND Chromium ug/L 03/01/00 -- -- 10 ND ND ND ND ND ND SW Standard ug/L 09/01/00 -- -- 10 ND ND 25 14 20 ND Acute = 16 ug/L ug/L 03/01/01 -- -- 10 ND ND ND ND ND ND Chronic = 11 ug/L ug/L 09/01/01 -- -- 10 ND ND ND ND ND ND ug/L 03/01 /02 -- -- 10 ND ND ND ND ND ND ug/L 09/01 /02 -- -- 10 ND ND ND ND ND ND ug/L 04/01 /03 -- -- 10 ND ND ND ND ND ND ug/L 10/01/03 -- -- 10 ND ND 10 ND ND ND ug/L 03/01 /04 -- -- 10 ND ND ND ND ND ND ug/L 09/01 /04 -- -- 10 ND ND ND ND ND ND ug/L 05/01 /05 -- -- 10 ND ND ND ND ND ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND ND ug/L 04/01 /06 -- -- 10 ND ND ND ND ND ND ug/L 10/01 /06 -- -- 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 2 -- 10 -- ND ND 15 ND ND ug/L 12/04/08 1 -- 10 -- ND 2.3 1 ND 1.4 1 ND ug/L 04/13/09 0.7 -- 10 -- 1.4 1 1.6 1 1.1 1 1.1 1 ND ug/L 10/20/09 1 -- 10 8.16 1 ND ND ND ND ND ug/L 04/30/10 1 -- 10 -- ND 1.14 1 ND 1.95 1 ND ug/L 10/11/10 1 -- 10 -- 2.52 1 1.00 1.00 1.00 ND ug/L 05/12/11 1 -- 10 4.37 1 ND 1.09 1 ND ND ND ug/L 10/07/11 1 -- 10 6.97 1 6.25 1 1.21 1 3.00 1 ND ND ug/L 04/19/12 1 -- 10 1.11 1 ND ND ND ND ND ug/L 10/26/12 1 -- 10 ND ND ND ND ND ND ug/L 04/25/13 1.4 -- 10 1.44 1 2.12 1 ND ND 2.57 1 ND ug/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 1 1.7 1 ND ND ug/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 1 ND 3.36 1 ND 3.51 1 ND ug/L 10/07/15 1.4 -- 10 7.93 1 ND ND 66.1 ND ND ug/L 04/20/16 1.4 -- 10 14.6 ND 6.73 1 ND ND ND ug/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 1 1.43 1 ND ND ug/L 10/17/17 1.4 -- 10 ND ND 3.94 1 ND ND ND ug/L 04/16/18 1.4 -- 10 1.74 1 ND 1.80 1 ND 1.92 1 ND ug/L 10/18/18 1.4 10.0 -- ND ND ND ND ND ND ug/L 04/12/19 1.4 10.0 -- 1.93 1 1.77 1 ND ND 2.09 1 ND Cobalt 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 ug/L 03/01/01 -- -- 10 ND ND ND ND ND ND ug/L 09/01/01 -- -- 10 ND ND ND ND ND ND ug/L 03/01 /02 -- -- 10 ND ND ND ND ND ND ug/L 09/01 /02 -- -- 10 ND 17 ND ND ND ND ug/L 04/01 /03 -- -- 10 14 14 15 14 ND ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND ND ug/L 03/01/04 -- -- 10 ND ND ND ND ND ND ug/L 09/01/04 -- -- 10 ND ND ND ND ND ND ug/L 05/01/05 -- -- 10 ND ND ND ND ND ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND ND ug/L 04/01 /06 -- -- 10 ND ND ND ND ND ND ug/L 10/01 /06 -- -- 10 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND ug/L 09/25/07 -- -- -- 3.5 1 ND ND ND ND ND ug/L 05/05/08 2 -- 10 -- ND ND 7.1 1 3.8 1 ND ug/L 12/04/08 1.1 -- 10 -- ND ND ND 2.9 1 ND ug/L 04/13/09 0.6 -- 10 -- 1.8 1 0.7 1 0.8 1 0.6 1 ND ug/L 10/20/09 1.1 -- 10 3.43 1 ND ND ND ND ND ug/L 04/30/10 1.1 -- 10 -- ND ND ND 1.98 1 ND ug/L 10/11/10 1.1 -- 10 -- ND ND ND ND ND ug/L 05/12/11 1.1 -- 10 3.19 1 ND ND ND ND ND ug/L 10/07/11 1.1 -- 10 4.06 1 6.5 1 1.19 1 2.28 1 ND ND ug/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 ug/L 04/25/13 1.1 -- 10 ND 2.03 1 ND ND ND ND ug/L 09/12/13 1.1 -- 10 ND ND 1.46 1 1.15 1 ND ND ug/L 04/25/14 1.1 -- 10 4.31 1 ND 1.91 1 ND ND ND ug/L 10/02/14 1.1 -- 10 8.95 1 ND 4.56 1 2.46 1 2.45 1 ND ug/L 04/06/15 1.1 -- 10 1.73 1 ND 2.44 1 1.56 1 2.18 1 ND ug/L 10/07/15 1.1 -- 10 4.34 1 ND 2.43 1 46.5 1.92 1 ND ug/L 04/20/16 1.1 -- 10 7.38 1 ND 4.32 1 1.66 1 2.1 1 ND ug/L 09/26/16 1.1 -- 10 ND 1.30 1 ND ND ND ND ug/L 04/28/17 1.1 -- 10 ND ND 2.31 1 ND ND ND ug/L 10/17/17 1.1 -- 10 ND ND 2.94 1 ND ND ND ug/L 04/16/18 1.1 -- 10 1.65 1 1.49 1 ND 1.30 1 1.32 1 ND ug/L 10/18/18 1.4 10.0 -- ND ND ND ND ND ND ug/L 04/12/19 1.4 10.0 -- ND 1.40 1 ND ND ND ND Copper ug/L 03/01/00 -- -- 200 ND ND ND ND ND ND SW Standards ug/L 09/01/00 -- -- 200 ND ND ND ND ND ND Acute = 3.6 ug/L ug/L 03/01/01 -- -- 200 ND ND ND ND ND ND Chronic = 2.7 ug/L ug/L 09/01/01 -- -- 200 ND ND ND ND ND ND ug/L 03/01 /02 -- -- 200 ND ND ND ND ND ND ug/L 09/01 /02 -- -- 200 ND ND ND ND ND ND ug/L 04/01 /03 -- -- 200 ND ND ND ND ND ND ug/L 10/01/03 -- -- 200 ND ND ND ND ND ND ug/L 03/01 /04 -- -- 200 ND ND ND ND ND ND ug/L 09/01 /04 -- -- 200 ND ND ND ND ND ND ug/L 05/01 /05 -- -- 200 ND ND ND ND ND ND ug/L 10/01/05 -- -- 200 ND ND ND ND ND ND ug/L 04/01 /06 -- -- 200 ND ND ND ND ND ND ug/L 10/01 /06 -- -- 200 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- 2.2 1 1.5 1 6.2 1 4.5 1 4.3 1 ND ug/L 09/25/07 -- -- -- 11.2 0.6 10.3 8.4 1 10.1 ND ug/L 05/05/08 0.6 -- 10 -- 1.3 1 2.5 1 13.3 3.7 1 ND ug/L 12/04/08 1.6 -- 10 -- 20.5 4.6 1 4.3 1 6.4 1 ND ug/L 04/13/09 0.81 -- 10 -- 1.93 1 2.56 1 1.87 1 1.78 1 ND ug/L 10/20/09 1.6 -- 10 10.7 ND 7.1 1 5.15 1 5.26 1 ND ug/L 04/30/10 1.6 -- 10 -- ND 5.9 1 3.3 1 6.33 1 ND ug/L 10/11/10 1.6 -- 10 -- 10.2 8.12 1 5.59 1 3.91 1 ND ug/L 05/12/11 1.6 -- 10 12.6 ND 3.34 1 2.89 1 3.03 1 ND ug/L 10/07/11 1.6 -- 10 8.31 1 5.88 1 4.91 1 6.56 1 3.28 1 ND ug/L 04/19/12 1.6 -- 10 2.72 1 ND 5.01 1 4.36 1 4.11 1 ND ug/L 10/26/12 1.6 -- 10 2.04 1 ND 5.47 1 2.22 1 2.71 1 ND ug/L 04/25/13 1.6 -- 10 3.43 1 5.01 1 4.46 1 4.33 1 6.16 1 ND ug/L 09/12/13 1.6 -- 10 1.94 1 ND 1.67 1 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 -- ug/L 10/02/14 1.6 -- 10 30.9 1.82 1 6.82 1 5.42 1 5.30 1 ND ug/L 04/06/15 1.6 -- 10 4.30 1 3.71 1 11.1 5.23 1 8.24 1 ND ug/L 10/07/15 1.6 -- 10 11.3 1.6 2.65 1 57.1 2.17 1 ND ug/L 04/20/16 1.6 -- 10 21.2 ND 10.8 2.56 1 4.07 1 ND ug/L 09/26/16 1.6 -- 10 4.52 1 2.57 1 6.61 1 6.03 1 8.07 1 ND ug/L 04/28/17 1.6 -- 10 5.19 1 3.02 1 13.4 4.55 1 4.51 1 ND ug/L 10/17/17 1.6 -- 10 3.95 1 1.77 1 9.07 1 2.58 1 2.89 1 ND ug/L 04/16/18 1.6 -- 10 4.40 1 4.19 1 4.11 1 5.33 1 3.98 1 ND ug/L 10/18/18 1.6 10.0 -- 3.11 1 3.84 1 2.72 1 2.42 1 3.55 1 ND ug/L 04/12/19 1.6 10.0 -- 3.44 1 5.44 1 5.11 1 3.66 1 4.18 1 ND 4 GOLDER 2 of 6 April 2019 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 Quanitation Reporting Blanks Limit Limit Limit SW-1 SW-2 SW-3 SW-4 SW-5 Lead ug/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 ug/L ug/L 03/01/01 -- -- 10 ND ND ND ND ND ND Chronic = 0.54 ug/L ug/L 09/01/01 -- -- 10 25 ND ND ND ND ND ug/L 03/01 /02 -- -- 10 ND ND ND ND ND ND ug/L 09/01 /02 -- -- 10 ND 86 ND ND ND ND ug/L 04/01/03 -- -- 10 ND ND ND ND ND ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND ND ug/L 03/01/04 -- -- 10 ND ND ND ND ND ND ug/L 09/01 /04 -- -- 10 ND ND ND ND ND ND ug/L 05/01 /05 -- -- 10 ND ND ND ND ND ND ug/L 10/01 /05 -- -- 10 ND ND ND ND ND ND ug/L 04/01 /06 -- -- 10 ND ND ND ND ND ND ug/L 10/01/06 -- -- 10 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND u g/L 09/25/07 -- -- -- 11.2 ND ND ND ND ND ug/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 ug/L 04/13/09 1.6 -- 10 -- 2.3 J 2.5 J 1.6 1.6 ND ug/L 10/20/09 1.9 -- 10 8.94 J ND ND 2.44 J 3.34 J ND ug/L 04/30/10 1.9 -- 10 -- ND ND ND 2.04 J ND ug/L 10/11/10 1.9 -- 10 -- 5.45 J 1.90 1.90 1.90 ND ug/L 05/12/11 1.9 -- 10 15.4 ND 2.00 J ND ND ND ug/L 10/07/11 1.9 -- 10 10.0 16.4 ND 3.33 J ND ND ug/L 04/19/12 1.9 -- 10 ND ND 2.38 J ND ND ND ug/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 ug/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 ug/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 ug/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 ug/L 09/26/16 3.1 -- 10 ND ND ND ND ND ND ug/L 04/28/17 3.1 -- 10 ND ND 4.66 J ND ND ND ug/L 10/17/17 3.1 -- 10 ND ND 3.18 J ND ND ND ug/L 04/16/18 3.1 -- 10 ND ND ND ND ND ND ug/L 10/18/18 3.1 10.0 -- ND ND ND ND ND ND ug/L 04/12/19 3.1 10.0 -- 3.91 J ND ND ND ND ND Nickel ug/L 03/01/00 -- -- 50 ND ND ND ND ND ND SW Standards ug/L 09/01/00 -- -- 50 ND ND 82 65 81 ND Acute = 140 ug/L ug/L 03/01/01 -- -- 50 ND ND ND ND ND ND Chronic = 16 ug/L ug/L 09/01/01 -- -- 50 ND ND ND ND ND ND ug/L 03/01 /02 -- -- 50 ND ND ND ND ND ND ug/L 09/01 /02 -- -- 50 ND ND ND ND ND ND ug/L 04/01 /03 -- -- 50 ND ND ND ND ND ND ug/L 10/01 /03 -- -- 50 ND ND ND ND ND ND ug/L 03/01/04 -- -- 50 ND ND ND ND ND ND ug/L 09/01 /04 -- -- 50 ND ND ND ND ND ND ug/L 05/01 /05 -- -- 50 ND ND ND ND ND ND ug/L 10/01 /05 -- -- 50 ND ND ND ND ND ND ug/L 04/01 /06 -- -- 50 ND ND ND ND ND ND ug/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 ug/L 09/25/07 -- -- -- ND ND 7.6 J ND ND ND ug/L 05/05/08 2.0 -- 50 -- 3.5 J 3.9 J 5.5 J 6.7 J ND ug/L 12/04/08 1.8 -- 50 -- ND 4.3 J 3.8 J 3.2 J ND ug/L 04/13/09 0.6 -- 50 -- 2.3 J 1.5 J 1.6 J 1.5 J ND ug/L 10/20/09 1.8 -- 50 2.94 J ND 2.53 J 1.89 J ND ND ug/L 04/30/10 1.8 -- 50 -- ND ND ND 2.14 J ND ug/L 10/11/10 1.8 -- 50 -- 1.80 2.22 J 1.80 1.80 ND ug/L 05/12/11 1.8 -- 50 2.34 J ND ND 2.57 J 2.66 J ND ug/L 10/07/11 1.8 -- 50 3.64 J 4.23 J 6.40 J 4.31 J 3.43 J ND ug/L 04/19/12 1.8 -- 50 ND ND 2.56 J 2.00 J 2.23 J ND ug/L 10/26/12 1.8 -- 50 ND 1.92 J 5.32 J 5.14 J 5.46 J ND ug/L 04/25/13 1.8 -- 50 2.38 J 3.30 J 6.20 J 6.96 J 6.85 J ND ug/L 09/12/13 1.8 -- 50 ND ND 2.09 J ND ND ND ug/L 04/25/14 1.8 -- 50 4.30 J 2.07 J 7.49 J 5.52 J 5.55 J ND ug/L 10/02/14 1.8 -- 50 7.25 J ND 23.7 J 9.96 J 10.6 J ND ug/L 04/06/15 1.8 -- 50 2.02 J ND 3.03 J 2.33 J 2.46 J ND ug/L 10/07/15 1.8 -- 50 3.16 J ND 6.56 J 22.0 J 3.14 J ND ug/L 04/20/16 2.2 -- 50 5.60 J ND 5.02 J 8.54 J 2.88 J ND ug/L 09/26/16 2.2 -- 50 ND ND 3.54 J 3.34 J 6.44 J ND ug/L 04/28/17 2.2 -- 50 ND ND 6.02 J 2.83 J 2.62 J ND ug/L 10/17/17 2.2 -- 50 ND ND ND ND ND ND ug/L 04/16/18 2.2 -- 50 ND ND ND ND ND ND ug/L 10/18/18 2.2 10.0 -- ND ND ND ND ND ND ug/L 04/12/19 2.2 10.0 -- ND ND ND ND ND ND Selenium ug/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 ug/L 03/01/01 -- -- 20 ND ND ND ND ND ND Chronic = 5 ug/L ug/L 09/01/01 -- -- 20 ND ND ND ND ND ND ug/L 03/01 /02 -- -- 20 ND ND ND ND ND ND ug/L 09/01 /02 -- -- 20 ND ND ND ND ND ND ug/L 04/01 /03 -- -- 20 ND ND ND ND ND ND ug/L 10/01 /03 -- -- 20 ND ND ND ND ND ND ug/L 03/01/04 -- -- 20 ND ND ND ND ND ND ug/L 09/01 /04 -- -- 20 ND ND ND ND ND ND ug/L 05/01 /05 -- -- 20 ND ND ND ND ND ND ug/L 10/01 /05 -- -- 20 ND ND ND ND ND ND ug/L 04/01 /06 -- -- 20 ND ND ND ND ND ND ug/L 10/01/06 -- -- 20 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND 2.9 J ND ug/L 09/25/07 -- -- -- ND ND ND ND ND ND ug/L 05/05/08 2 -- 10 -- ND ND ND ND ND ug/L 12/04/08 2.7 -- 10 -- ND ND ND ND ND ug/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 ug/L 04/30/10 0.83 -- 10 -- 1.72 J 0.9 J 0.974 J 1.23 J ND ug/L 10/11/10 0.83 -- 10 -- 0.83 0.83 0.83 0.875 J ND ug/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 ug/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 ug/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 ug/L 04/06/15 0.91 -- 10 ND ND ND ND ND ND ug/L 10/07/15 0.91 -- 10 ND ND ND ND ND ND ug/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 ug/L 04/28/17 6.2 -- 10 ND ND ND ND ND ND ug/L 10/17/17 6.2 -- 10 ND ND ND ND ND ND ug/L 04/16/18 6.2 -- 10 ND ND ND ND ND ND ug/L 10/18/18 6.2 10.0 -- ND ND ND ND ND ND ug/L 04/12/19 6.2 10.0 -- ND ND ND ND ND ND Silver ug/L 03/01/00 -- -- 10 ND ND ND ND ND ND SW Standards ug/L 09/01/00 -- -- 10 ND ND ND ND ND ND Acute = 30 ug/L ug/L 03/01/01 -- -- 10 ND ND ND ND ND ND Chronic = 0.6 ug/L ug/L 09/01/01 -- -- 10 ND ND ND ND ND ND ug/L 03/01 /02 -- -- 10 ND ND ND ND ND ND ug/L 09/01 /02 -- -- 10 ND ND ND ND ND ND ug/L 04/01 /03 -- -- 10 ND ND ND ND ND ND ug/L 10/01 /03 -- -- 10 ND ND ND ND ND ND ug/L 03/01/04 -- -- 10 ND ND ND ND ND ND ug/L 09/01 /04 -- -- 10 ND ND ND ND ND ND ug/L 05/01/05 -- -- 10 ND ND ND ND ND ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND ND ug/L 04/01/06 -- -- 10 ND ND ND ND ND ND ug/L 10/01/06 -- -- 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 2 -- 10 -- ND 2.2 J ND 2.4 J ND ug/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 ug/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 ug/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 ug/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 ug/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 ug/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 ug/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 ug/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 ug/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 ug/L 10/17/17 1.9 -- 10 ND ND ND ND ND ND ug/L 04/16/18 1.9 -- 10 ND ND ND ND ND ND ug/L 10/18/18 1.9 10.0 -- ND ND ND ND ND ND ug/L 04/12/19 1.9 10.0 -- ND ND ND ND ND ND 4 GOLDER 3 of 6 April 2019 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 Detection Quanitation Reporting Blanks (SW Standard) Units Date Limit Limit Limit SW-1 SW-2 SW-3 SW-4 SW-5 Thallium 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 ug/L 03/01/01 -- -- 10 ND ND ND ND ND ND ug/L 09/01/01 -- -- 10 ND ND ND ND 12 ND ug/L 03/01/02 -- -- 10 ND ND ND ND ND ND ug/L 09/01 /02 -- -- 10 ND ND ND ND ND ND ug/L 04/01/03 -- -- 10 ND ND ND ND ND ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND ND ug/L 03/01 /04 -- -- 10 ND ND ND ND ND ND ug/L 09/01 /04 -- -- 10 ND ND ND ND ND ND ug/L 05/01 /05 -- -- 10 ND ND ND ND ND ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND ND ug/L 04/01/06 -- -- 10 ND ND ND ND ND ND ug/L 10/01/06 -- -- 10 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND ug/L 09/25/07 -- -- -- 0.053 1 0.05 1 0.045 1 0.055 1 0.054 1 ND ug/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 ug/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 ug/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 ug/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 ug/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 ug/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 ug/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 ug/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 ug/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 1 0.124 1 0.205 1 0.187 1 0.316 1 ND ug/L 04/28/17 0.11 -- 5.5 0.389 1 0.267 1 0.261 1 0.287 1 0.205 1 ND ug/L 10/17/17 0.11 -- 5.5 0.819 1 0.655 1 0.698 1 0.840 1 0.425 1 ND ug/L 04/16/18 0.11 -- 5.5 ND ND ND ND ND ND ug/L 10/18/18 0.55 5.00 -- ND ND ND ND ND ND ug/L 04/12/19 0.22 2.00 -- ND ND ND ND ND ND Vanadium ug/L 03/01/00 -- -- 40 ND ND ND ND ND ND No SW Standard ug/L 09/01/00 -- -- 40 ND ND ND ND ND ND ug/L 03/01/01 -- -- 40 ND ND ND ND ND ND ug/L 09/01/01 -- -- 40 ND ND ND ND ND ND ug/L 03/01 /02 -- -- 40 ND ND ND ND ND ND ug/L 09/01 /02 -- -- 40 ND 44 ND ND ND ND ug/L 04/01 /03 -- -- 40 ND ND ND ND ND ND ug/L 10/01/03 -- -- 40 ND ND ND ND ND ND ug/L 03/01 /04 -- -- 40 ND ND ND ND ND ND ug/L 09/01 /04 -- -- 40 ND ND ND ND ND ND ug/L 05/01 /05 -- -- 40 ND ND ND ND ND ND ug/L 10/01 /05 -- -- 40 ND ND ND ND ND ND ug/L 04/01 /06 -- -- 40 ND ND ND ND ND ND ug/L 10/01 /06 -- -- 40 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND ug/L 09/25/07 -- -- -- 7.1 1 ND ND 1.5 1 1.2 1 ND ug/L 05/05/08 1 -- 25 -- ND ND 9.3 1 2.4 1 ND ug/L 12/04/08 1.4 -- 25 -- ND ND ND 2.5 1 ND ug/L 04/13/09 0.7 -- 25 -- 4.2 1 2.1 1 2.5 1 2.6 1 ND ug/L 10/20/09 1.4 -- 25 10.7 1 2.19 1 1.81 1 2.79 1 1.86 1 ND ug/L 04/30/10 1.4 -- 25 -- ND ND ND 3.45 1 ND ug/L 10/11/10 1.4 -- 25 -- 8.27 1 3.03 1 2.55 1 2.02 1 ND ug/L 05/12/11 1.4 -- 25 8.52 1 1.90 1 2.35 1 2.27 1 2.42 1 ND ug/L 10/07/11 1.4 -- 25 11.9 1 21.0 1 2.27 1 6.55 1 1.66 1 ND ug/L 04/19/12 1.4 -- 25 2.33 1 ND 1.48 1 1.60 1 1.44 1 ND ug/L 10/26/12 1.4 -- 25 ND ND ND ND ND ND ug/L 04/25/13 1.4 -- 25 2.31 1 5.99 1 ND ND ND ND ug/L 09/12/13 1.4 -- 25 2.11 1 ND 1.70 1 1.53 1 ND ND ug/L 04/25/14 1.4 -- 25 17.9 1 ND 4.7 1 2.25 1 1.60 1 ND ug/L 10/02/14 1.4 -- 25 42.2 ND 3.14 1 2.66 1 2.26 1 ND ug/L 04/06/15 1.4 -- 25 2.34 1 ND 3.33 1 ND 4.62 1 ND ug/L 10/07/15 1.4 -- 25 18.2 1 2.91 1 3.69 1 61.8 3.05 1 ND ug/L 04/20/16 1.4 -- 25 26.9 ND 12.0 1 2.13 1 3.04 1 ND ug/L 09/26/16 1.4 -- 25 1.95 1 ND ND 1.64 1 4.58 1 ND ug/L 04/28/17 1.4 -- 25 2.61 1 1.66 1 8.36 1 2.35 1 2.36 1 ND u g/L 10/17/17 1.4 -- 25 2.42 1 ND 7.92 1 3.42 1 2.88 1 ND ug/L 04/16/18 1.4 -- 25 2.33 1 2.14 1 2.45 1 2.94 1 3.67 1 ND ug/L 10/18/18 1.4 10.0 -- 1.88 1 2.26 1 1.51 1 1.61 1 1.70 1 ND ug/L 04/12/19 1.4 10.0 -- 1.54 1 4.16 1 2.39 1 1.78 1 2.09 1 ND Zinc ug/L 03/01/00 -- -- 50 ND ND 31 58 68 ND SW Standards ug/L 09/01/00 -- -- 50 ND ND 130 50 60 ND Acute = 36 ug/L ug/L 03/01/01 -- -- 50 ND ND 68 ND 56 ND Chronic = 36 ug/L ug/L 09/01/01 -- -- 50 120 ND 60 ND 50 ND ug/L 03/01 /02 -- -- 50 ND ND 70 50 60 ND ug/L 09/01 /02 -- -- 50 ND 180 80 ND ND ND ug/L 04/01 /03 -- -- 50 ND ND ND ND 50 ND ug/L 10/01/03 -- -- 50 ND ND 120 50 50 ND ug/L 03/01 /04 -- -- 50 ND ND 52 ND ND ND ug/L 09/01 /04 -- -- 50 58 ND 56 ND 59 ND ug/L 05/01 /05 -- -- 50 ND ND ND ND ND ND ug/L 10/01 /05 -- -- 50 ND ND ND ND ND ND ug/L 04/01 /06 -- -- 50 ND ND 51.6 ND ND ND ug/L 10/01 /06 -- -- 50 ND ND 60.9 ND ND ND ug/L 04/10/07 -- -- -- 7.6 1 23.5 48.4 38.2 39.5 ND ug/L 09/25/07 -- -- -- 84.9 11.4 60.4 36.4 45.7 ND ug/L 05/05/08 1.0 -- 10 -- 5.8 1 6.4 1 154 20.4 ND ug/L 12/04/08 3.8 -- 10 -- 22.4 47.9 35.3 34.6 ND ug/L 04/13/09 3.4 -- 10 -- 24.9 21.4 25.8 27.2 ND ug/L 10/20/09 3.8 -- 10 70.0 7.62 1 45.2 30.9 33.2 ND ug/L 04/30/10 3.8 -- 10 -- 6.64 1 48.1 34.0 54.2 ND ug/L 10/11/10 3.8 -- 10 -- 32.0 30.1 22.8 22.9 ND ug/L 05/12/11 3.8 -- 10 76.2 10.1 33.5 27.7 36.9 ND ug/L 10/07/11 3.8 -- 10 102 62.1 45.0 60.5 32.1 ND ug/L 04/19/12 3.8 -- 10 5.98 1 ND 32.0 21.6 22.9 ND ug/L 10/26/12 3.8 -- 10 12.3 5.81 1 25.3 20.3 22.0 ND ug/L 04/25/13 3.8 -- 10 15.0 25.8 42.6 31.6 33.1 ND ug/L 09/12/13 3.8 -- 10 9.73 1 ND 29.8 14.9 17.1 ND ug/L 04/25/14 3.8 -- 10 66.3 7.92 1 63.3 37.2 33.7 ND ug/L 10/02/14 3.8 -- 10 144 3.94 1 63.6 34.9 34.0 ND ug/L 04/06/15 3.8 -- 10 16.4 5.33 1 57.3 30.0 51.6 ND ug/L 10/07/15 3.8 -- 10 117 7.88 1 25.2 1020 24.5 ND ug/L 04/20/16 4.4 -- 10 111 ND 95.5 31.5 44.7 ND ug/L 09/26/16 4.4 -- 10 5.08 1 5.21 1 20 16.4 27.7 ND ug/L 04/28/17 4.4 -- 10 11.0 6.98 1 64.8 21.1 20.1 ND ug/L 10/17/17 4.4 -- 10 8.83 1 ND 32.5 5.72 1 ND ND ug/L 04/16/18 4.4 -- 10 11.4 10.6 10.3 16.3 15.7 ND ug/L 10/18/18 4.4 10.0 -- 12.9 12.2 11.8 17.5 18.4 ND ug/L 04/12/19 4.4 10.0 -- 11.6 16.2 13.9 12.1 15.6 ND Acetone ug/L 03/01/00 -- -- 100 ND ND ND ND ND -- SW Standard = 2000 ug/L ug/L 09/01/00 -- -- 100 ND ND ND ND ND ND ug/L 03/01/01 -- -- 100 ND ND ND ND ND ND ug/L 09/01/01 -- -- 100 ND ND ND ND ND ND ug/L 03/01 /02 -- -- 100 ND ND ND ND ND ND ug/L 09/01 /02 -- -- 100 ND ND ND ND ND ND ug/L 04/01 /03 -- -- 100 ND ND ND ND ND ND ug/L 10/01/03 -- -- 100 ND ND ND ND ND ND ug/L 03/01 /04 -- -- 100 ND ND ND ND ND ND ug/L 09/01 /04 -- -- 100 ND ND ND ND ND ND ug/L 05/01 /05 -- -- 100 ND ND ND ND ND ND ug/L 10/01 /05 -- -- 100 ND ND ND ND ND ND ug/L 04/01 /06 -- -- 100 ND ND ND ND ND ND ug/L 10/01 /06 -- -- 100 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND ug/L 09/25/07 -- -- -- ND 5.3 1 68 1 1.7 1 6.3 1 ND ug/L 05/05/08 0.62 -- 100 -- ND ND ND ND ND ug/L 12/04/08 1.5 -- 100 -- 7.9 1 9.1 1 7.6 1 7.8 1 ND ug/L 04/13/09 1.5 -- 100 -- ND ND ND ND ND ug/L 10/20/09 1.5 -- 100 ND ND 6.0 1 ND 6.2 1 ND ug/L 04/30/10 1.5 -- 100 -- 3.0 1 3.5 1 4.6 1 4.1 1 ND ug/L 10/11/10 1.5 -- 100 -- ND ND ND ND ND ug/L 05/12/11 1.2 -- 100 9.7 1 7.5 1 ND ND ND ND ug/L 10/07/11 1.2 -- 100 ND ND ND ND ND ND ug/L 04/19/12 1.2 -- 100 ND ND ND ND ND ND ug/L 10/26/12 1.2 -- 100 ND 4.4 1 ND ND ND ND ug/L 04/25/13 0.96 -- 100 1.0 1 1.0 1 ND ND 1.6 1 ND ug/L 09/12/13 1.2 -- 100 ND ND ND ND ND ND ug/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 ug/L 04/06/15 1.2 -- 100 ND ND ND ND ND ND ug/L 10/07/15 1.2 -- 100 ND ND ND ND ND ND ug/L 04/20/16 1.2 -- 100 ND ND ND ND ND ND ug/L 09/26/16 10 -- 100 ND 11 1 ND ND 11 1 ND ug/L 04/28/17 10 -- 100 23 B 19 B 19 B 36 B 16 B 33 1 ug/L 10/17/17 10 -- 100 ND ND ND ND ND ND ug/L 04/16/18 10 -- 100 ND ND ND ND ND ND ug/L 10/18/18 10 20 -- ND ND ND ND ND ND ug/L 04/12/19 10 20 -- ND ND ND ND ND ND 4 GOLDER 4 of 6 April 2019 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 Quanitation Reporting Blanks Limit Limit Limit SW-1 SW-2 SW-3 SW-4 SW-5 Chloroform ug/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 ug/L 03/01/01 -- -- 5 ND ND ND ND ND ND ug/L 09/01/01 -- -- 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 04/01/06 -- -- 5 ND ND ND ND ND ND ug/L 10/01/06 -- -- 5 ND ND ND ND ND ND ug/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 ug/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 ug/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 ug/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 ug/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 ug/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 ug/L 04/25/13 0.25 -- 5 ND ND 0.51 J ND ND ND ug/L 09/12/13 0.18 -- 5 ND ND 1.8 J 0.76 J 0.76 J ND ug/L 04/25/14 0.18 -- 5 1.6 J ND 1.7 J 0.46 J 0.58 J ND ug/L 10/02/14 0.18 -- 5 1.2 J ND 0.95 J 1.0 J ND ND ug/L 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 ug/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 ug/L 04/28/17 0.18 -- 5 ND ND ND ND ND ND ug/L 10/17/17 0.18 -- 5 ND ND ND ND ND ND ug/L 04/16/18 0.18 -- 5 ND ND ND ND ND ND ug/L 10/18/18 0.18 1.0 -- ND ND ND ND ND ND ug/L 04/12/19 0.18 1.0 -- ND ND ND ND ND ND Dibromochloromethane 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 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 /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 ug/L 04/30/10 0.067 -- 3 -- ND ND ND ND ND ug/L 10/11/10 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 10/07/11 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 ug/L 04/20/16 0.17 -- 3 ND ND ND ND ND ND ug/L 09/26/16 0.17 -- 3 ND ND ND ND ND ND ug/L 04/28/17 0.17 -- 3 ND ND ND ND ND ND ug/L 10/17/17 0.17 -- 3 ND ND ND ND ND ND ug/L 04/16/18 0.17 -- 3 ND ND ND ND ND ND ug/L 10/18/18 0.17 1.0 -- ND ND ND ND ND ND ug/L 04/12/19 0.17 1.0 -- ND ND ND ND ND ND 1,4-Dichlorobenzene ug/L 03/01/00 -- -- 5 ND ND ND ND ND ND SW Standard = 100 ug/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 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 /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 10/11/10 0.38 -- 1 -- ND ND ND ND ND ug/L 05/12/11 0.79 -- 1 ND ND ND ND ND ND ug/L 10/07/11 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 0.14 -- 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 ug/L 10/17/17 0.19 -- 1 ND ND ND ND ND ND ug/L 04/16/18 0.19 -- 1 ND ND ND ND ND ND ug/L 10/18/18 0.19 1.0 -- ND ND ND ND ND ND ug/L 04/12/19 0.19 1.0 -- ND ND ND ND ND ND 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 ug/L 03/01/01 -- -- 10 ND ND ND ND ND ND ug/L 09/01 /01 -- -- 10 ND ND ND ND ND ND ug/L 03/01 /02 -- -- 10 ND ND ND ND ND ND ug/L 09/01 /02 -- -- 10 ND ND ND ND ND ND ug/L 04/01/03 -- -- 10 ND ND ND ND ND ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND ND ug/L 03/01 /04 -- -- 10 ND ND ND ND ND ND ug/L 09/01/04 -- -- 10 ND ND ND ND ND ND ug/L 05/01/05 -- -- 10 ND ND ND ND ND ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND ND ug/L 04/01 /06 -- -- 10 ND ND ND ND ND ND ug/L 10/01 /06 -- -- 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 ug/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 ug/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 ug/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 ug/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 ug/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 ug/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 ug/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 ug/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 ug/L 04/28/17 0.13 -- 1 0.42 J ND ND 0.78 J 0.41 J ND ug/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 10/18/18 0.13 1.0 -- ND ND ND ND ND ND ug/L 04/12/19 0.13 1.0 -- ND ND ND ND ND ND 4 GOLDER 5 of 6 April 2019 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 Quanitation Reporting Blanks Limit Limit Limit SW-1 SW-2 SW-3 SW-4 SW-5 Methylene Chloride 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 ug/L 03/01/01 -- -- 10 ND ND ND ND ND ND ug/L 09/01/01 -- -- 10 ND ND ND ND ND ND ug/L 03/01/02 -- -- 10 ND ND ND ND ND ND ug/L 09/01 /02 -- -- 10 ND ND ND ND ND ND ug/L 04/01/03 -- -- 10 ND ND ND ND ND ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND ND ug/L 03/01 /04 -- -- 10 ND ND ND ND ND ND ug/L 09/01 /04 -- -- 10 ND ND ND ND ND ND ug/L 05/01 /05 -- -- 10 ND ND ND ND ND ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND ND ug/L 04/01/06 -- -- 10 ND ND ND ND ND ND ug/L 10/01/06 -- -- 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 0.24 -- 1 -- ND ND ND ND ND ug/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 ug/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 ug/L 10/11/10 0.53 -- 1 -- ND ND ND ND ND ug/L 05/12/11 0.14 -- 1 ND ND ND ND ND ND ug/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 ug/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 ug/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 ug/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 ug/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 ug/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 ug/L 10/17/17 0.23 -- 1 ND ND ND ND ND ND ug/L 04/16/18 0.23 -- 1 ND ND ND ND ND ND ug/L 10/18/18 0.23 1.0 -- ND ND ND ND ND ND ug/L 04/12/19 0.23 1.0 -- ND ND ND ND ND 0.73 J Trichloroethene ug/L 03/01 /00 -- -- 5 ND ND ND ND ND ND SW Standard ug/L 09/01/00 -- -- 5 ND ND ND ND ND ND Human Health = 30 ug/L ug/L 03/01/01 -- -- 5 ND ND ND ND ND ND ug/L 09/01/01 -- -- 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 /06 -- -- 5 ND ND ND ND ND ND ug/L 10/01/06 -- -- 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 0.25 -- 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 0.13 -- 1 -- ND ND ND ND ND ug/L 10/11/10 0.38 -- 1 -- ND ND ND ND ND ug/L 05/12/11 0.72 -- 1 ND ND ND ND ND ND ug/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 ug/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 ug/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 ug/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 ug/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 ug/L 09/26/16 0.15 -- 1 ND ND ND ND ND ND ug/L 04/28/17 0.15 -- 1 ND ND ND ND ND ND ug/L 10/17/17 0.15 -- 1 ND ND ND ND ND ND ug/L 04/16/18 0.15 -- 1 ND ND ND ND ND ND ug/L 10/18/18 0.15 1.0 -- ND ND ND ND ND ND ug/L 04/12/19 0.15 1.0 -- ND ND ND ND ND ND 1,4-Dioxane ug/L 10/18/18 1.2 2.0 -- ND ND ND 2.1 1.5 J ND (SW Standard = 80 ug/L) ug/L 04/12/19 1.2 2.0 -- ND 1.6 J ND ND ND ND Tetrahydrofuran ug/L 04/20/16 0.8 -- -- ND ND ND ND ND ND No SW standard ug/L 09/26/16 0.8 -- -- ND ND ND ND ND ND ug/L 04/28/17 0.17 -- 1 ND ND ND ND ND ND ug/L 10/18/18 0.53 1.0 -- -- -- -- -- -- ND ug/L 04/12/19 0.53 1.0 -- -- -- -- -- ND NC Notes: B = blank -qualified data Shaded = concentrations above applicable EPA MCL have been shaded. Bold = concentrations above applicable IMAC and/or NC 2L have been bolded. Data prior to April 2017 provided by S&ME Engineering # = EPA Action Level * = EPA Secondary MCL Blanks = field, trip and method blanks IMAC = Interim Maximum Allowable Concentration (under NC 2L Rules) Laboratory method blank data was unavailable for data prior to April 2017. However, B flags for the 04/16/09, 10/07/09, and 10/11/10 were present on laboratory electronic files. MDL = laboratory method detection limit ug/L = micrograms per liter mg/L = milligrams per liter nM = nano mols SWS Reporting Limit = NCPQL prior to 2007 and NCSWSL starting on 01/18/07 -- = no data available or no limit established NC 2L = North Carolina Water Quality Standard ND = not detected above the laboratory detection limit or stated reporting limit J = 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 values between MDL and PQL. The following dilutions were noted for the April 2019 event: antimony and thallium by 2x (all points) EPA MCL = United States Environmental Protection Agency Maximum Contaminant Limit 4 GOLDER 6 of 6 June 2019 1668421.105 TABLE 7 Summary of Surface Water Field Parameters Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina Sample Detected Constituent Reporting Upstream Surface Water Monitoring Points Downstream Surface Water Monitoring Points Date (SW Standard) Units 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. 10/16/17 7.38 6.88 7.07 7.45 7.94 S.U. 04/16/18 7.48 7.38 7.42 7.67 7.38 S.U. 10/18/18 7.49 8.01 7.50 7.43 7.40 S.U. 04/08/19 7.07 6.50 7.69 7.28 7.50 Specific Conductance (Field) US/cm 03/25/99 347 155 309 -- -- us/cm 09/23/99 811 123 487 -- -- US/cm 03/27/00 417 186 363 318 315 US/cm 09/13/00 303 233 ND 471 438 us/cm 03/12/01 6919 6145 6145 6393 5960 US/cm 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 us/cm 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/cm 04/24/06 195 182 335 286 404 US/cm 10/16/06 -- -- -- -- -- US/cm 04/10/07 31.9 28.9 43.6 42.9 43.5 us/cm 09/25/07 31.0 13.0 57.0 53.0 54.0 US/cm 05/02/08 -- -- -- -- -- 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 10/01/14 276 228 454 444 441 us/cm 04/07/15 318 255 400 378 423 us/cm 10/06/15 229 151 337 299 284 US/cm 04/18/16 254 183 313 307 300 us/cm 09/26/16 293 214 439 412 427 us/cm 04/25/17 211 198 318 272 1272 US/cm 10/16/17 209 171 211 241 263 us/cm 04/16/18 233 215 234 217 227 us/cm 10/18/18 191 264 159 209 254 us/cm 04/08/19 129 210 158 270 248 . GaLDEF 1of2 June 2019 1668421.105 TABLE 7 Summary of Surface Water Field Parameters Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina Sample Detected Constituent Reporting Upstream Surface Water Monitoring Points Downstream Surface Water Monitoring Points Date (SW Standard) Units 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 16.52 °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 10/01 /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 10/06/15 18.76 17.11 21.82 20.90 19.20 °C 04/18/16 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 10/16/17 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 10/18/18 14.7 14.9 14.9 13.2 19.8 °C 04/08/19 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 10/16/17 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 10/18/18 4.94 4.84 3.77 9.87 5.30 NTU 04/18/19 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 my 10/16/17 81.7 60.9 174.0 81.3 10.7 my 04/16/18 119.5 95.2 202.0 190.5 115.8 my 10/18/18 115.1 61.7 97.2 143.1 7.9 my 04/08/19 124.5 143.2 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 10/16/17 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 10/18/18 5.95 10.74 6.99 7.06 5.81 mg/L 04/08/19 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 4 GOLDER 2 of 2 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: Well Diameter: 2 inches Depth to Bottom: feet Pumping Rate: mL/min Well Location: DATE: 'A- q — 19 GROUNDWATER SAMPLING LOG Project No./Phase No.: 1668421 Sampler(s); A. Martin/ E. Vasko Initial Depth to Water: spi feet Water Column Thickness: ' feet System Volume: 1y%. mL Equipment: S ag -7i CA - 1�,��-v (p,,,�.p.P 14C.-I ®®'Cond. Turb Dis• •-• e y 0 &1� I• ` r I KW w Comments (weather conditions, color, type of sample, purge -water management, etc.): Weather: Purae: Signature: ��Q` Date: QA/QC Sign Off:?�.....P. %Gv.i Date: -101 A DATE: 4- - ( Z GROUNDWATER SAMPLING LOG GOLDER Project Name: VJ �, i-e `j�, �` Project /Phase No.: r & &?+2 Well ID: -� Sampler(s): :, V� Well Diameter: "Z inches Initial Depth fo Water: ZA feet Depth to Bottom: feet Water Column Thickness: feet Pumping Rate: 3� mUmin System Volume. I ZZ ( mL Well Location: Equipment: P'v ,��_(��, �® . m • •-: MUM, �L� %�r� � '��:•iI L�1�rfM�i��■flil7b��S Q��'a�r� Comments (weather conditions, color, type of sample, purge -water management, etc.): Weather: T� n Signature: " Dater 12-- 1 q QA/QC Sign Off: _ _Rcl� ?Lc Date: & -1 Z i9 DATE: t - )2- I q GROUNDWATER SAMPLING LOG GOLDER Project Name: W Y\ 14I? �4, L, F Project /Phase No.: I C G?L -Z J Well ID: E-Z Sampler(s): _r_, Xjp5ko Well Diameter: 'Z inches Initial Depth to Water: `7i �l feet Depth to Bottom: ? _ 4- , C7 feet Water Column Thickness: l (a ��1 feet Pumping Rate: 00 mUmin System Volume. ►Z -71 mL Well Location: Equipment: ®® . • , •-: r�ir�MIUMra Klf ff� INOMr,� •1 �7IW��' � I � �/� �r�a o-y-MMIN1 INS ",F - Mffmrmm : < ., IMNEM Comments (weather conditions, c lor, type of sa ple, purge -water man+a ement, etc.)r¢S Weather: C 1rudVie I�Ct�S4A v c A PA RPnin nurninn (try i 7_ 2? Ali U 7 C <19 Signature: Date: 4- _l Z i I QA/QC Sign Off: .e 26-r Date: (, -/Z,-/ q w"Its k> GOLDER Project Name:, ee� ZF Well ID: — 5 Well Diameter: 'inches Depth to Bottom.2LA _feet Pumping Rate: mUmin Well Location: Wp -� r-, (�- n�CLLsj DATE: q 1 rz18 GROUNDWATER SAMPLING LOG Project /Phase No.: Sampler(s): VN . Initial Depth to Water: ; i _ScT feet Water Column Thickness: dad feet System Volume: % ( mL Equipment: y4�;l �® , m • �]rp. IG�w VA ' 161 = � • 0 M M we A Weather: Signatur Date: QA/QC Sign Off: 1e i(.w Date: k> GOLDER DATE: y GROUNDWATER SAMPLING LOG Project Name: Ifk Project /Phase No.: lb(na1 Well ID:Sampler(s): A. re3AV,4 Well Diameter: inches Initial Depth to Water: feet Depth to Bottom: 1P5 feet Water Column Thickness: _feet Pumping Rate: - lj�;CmUmin System Volume: 10--4-tp_mL Well Location: Equipment: -vC lam -,..eta 17 LrrU k I'aJ'- 1.1, 4't MCA, wmSp. Cond. � (US/cm) Turb. (NTU) IF .11-M � � 1iti�1��.� � rI[�Lin*Jqq ice. ■� ROM.• � ,Lr.aW*'M F&WIVIUMIZA0 REM". MOM WME r i RQ� '• flIlrMUM _� WMA Comments (weather conditions, color, type of sample, purge -water management, etc.): Signature: Date: QA/QC Sign Off: -' ' A `" Date: 6 -"/ 2-YI 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 DATE: 4- [ Z - Iq G O L DER SURFACE WATER SAMPLING LOG Project Name: W ti I ve' a � � � Project No./Phase No.: 1 �'q 6 �' �-2 Sample ID: �!'u) 2 Sampler(s a 5 Af Sampling Location: r 0 CLt Equipment: YSI Pro P us, Hach 2100Q il11 Surface Water Sampling Location Sketch Time pH S.U. Sp. Cond. US/cm ao Turb. ntu ..1 Dis. OZ m /L —1,(�t 7 Temp. °C ORP my Comments (sample methodology, weather conditions, color, silt, etc.): l t ► -,on 'nn .oa/ f h ►-Pir CD i- g 1. n 1., k 1, -J 6 Jr Signature: l� Y �/1 Date: QA/QC Sign Off: Date: DATE: G O L D E R SURFACE WATER SAMPLING LOG Project Name: Oy\-1.1 Project No./Phase No.: 16 0.8 rak Sample ID: CzA3-22 Sampler(s): Sampling Location: F + Equipment: YSI Pro Plus, Ha h 2100Q Time i54/ pH S.U. Sp. Cond. US/cm S�'• L Turb. ntu /6 �-- DIS. 02 m /L �t /� Temp. oC /g1 ORP my •� Surface Water Sampling Location Sketch l" Or bakL'e,r PNJ6" Comments (sample methodology, weather conditions, color, silt, etc.): L Signature: /mil SG'C� Date: QA/QC Sign Off: Date: GOLDER DATE: 41 l2ll q SURFACE WATER SAMPLING LOG Project Name: Project No./Phase No.: JJ4lo18q7al Sample ID: Sampler(s): a, fV(\Uif4C�!\ J � iloLSVV Sampling Location: Equipment: YSI Pro Plus, Hach 2100Q Surface Water Sampling Location Sketch Time OgcA pH s.u. %, 23 Sp. Cond. us/cm 7l=6 l Turb. ntu Dis. Oz m /L Temp. oC ORP my ments (sample methodology, weather conditions, color, silt, etc.): Signature: Date: 4A 112 `\ 1 QA/QC Sign Off: riLI-1 e 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 p ENCO Laboratories j g Accurate. Timely. Respousive. luuavative. 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 ENCO Workorder(s): CC05273,CC06162 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 32 PROJECT NARRATIVE Date: 29 April 2019 Client: Golder Associates, Inc. (G0007) Project: White Street LF-Phase I Lab ID: CC05273, CC06162 Overview (� �Eo www.encolabs.com This report is an amendment to the original report dated 29 April 2019 for this work order. This report was revised to clarify the exceedance for Mercury in the narrative section of the report. 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 samples for the 8260D SIM analysis for 1.4-Dixoane. The spike recoveries of Cadmium, Mercury, and Selenium were outside of control limits for the 601 OD (7470 A for the Mercury) MS, MSD, and/or Post Spike samples. The QC batch was approved based on acceptable LCS recovery of these elements. Quality Control Remarks The surrogate spike recovery of Toluene-d8 exceeded acceptance criteria for the 8260D SIM analysis of 1.4-Dioxane for sample 1-1. Other Comments Methylene chloride, a common laboratory contaminant, was detected in sample 1-2 and the Trip Blank; however, this analyte was not detected in the associated Method Blanks. 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 32 (� �Eo www.encolabs.com SAMPLE SUMMARY/LABORATORY CHRONICLE Client ID: 4103-IS Lab ID: CC05273-01 Sampled: 04/12/19 11:49 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 12:02 EPA 7470A EPA 7470A O5/10/19 04/23/19 13:54 04/24/19 11:30 EPA 8260D EPA 503013_MS 04/26/19 04/19/19 13:40 04/19/19 19:47 EPA 8260D EPA 503013_MS 04/26/19 04/19/19 15:48 04/20/19 17:01 Client ID: 4103-I2 Lab ID: CC05273-02 Sampled: 04/12/19 14:39 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 12:05 EPA 7470A EPA 7470A 05/10/19 04/23/19 13:54 04/24/19 11:32 EPA 8260D EPA 5030B_MIS 04/26/19 04/19/19 15:48 04/20/19 17:32 Client ID: 4103-I2 Lab ID: CC05273-02RE1 Sampled: 04/12/19 14:39 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 13:02 EPA 8260D EPA 503013_MS 04/26/19 04/23/19 00:58 04/23/19 17:34 Client ID: 4103-I3 Lab ID: CC05273-03 Sampled: 04/12/19 14:02 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 16:00 EPA 7470A EPA 7470A 05/10/19 04/23/19 13:54 04/24/19 11:35 Client ID: 4103-I3 Lab ID: CC05273-03RE1 Sampled: 04/12/19 14:02 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 13:38 EPA 8260D EPA 5030B_MIS 04/26/19 04/23/19 00:58 04/24/19 10:59 Client ID: 4303-Trip Blank I Lab ID: CC05273-04 Sampled: 04/12/19 14:02 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 00:42 EPA 8260D EPA 503013_MS 04/26/19 04/19/19 13:40 04/19/19 21:33 Client ID: 4103-I4 Lab ID: CC06162-01 Sampled: 04/15/19 13:52 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 13:40 EPA 7470A EPA 7470A 05/13/19 04/25/19 14:11 04/26/19 11:45 EPA 8260D EPA 5030B_MS 04/29/19 04/23/19 14:22 04/23/19 23:25 Client ID: 4103-I4 Lab ID: CC06162-OIRE1 Sampled: 04/15/19 13:52 Received: 04/17/19 11:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260D EPA 5030B_MS 04/29/19 04/23/19 00:00 04/23/19 20:01 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 3 Of 32 (� �Eo www.encolabs.com SAMPLE DETECTION SUMMARY Client ID: 4103-IS Lab ID: CC05273-01 Anala Results Flag MDL POLL Units Method Notes 1,2-Dichlorobenzene 0.43 1 0.19 1.0 ug/L EPA 8260D 1,4-Dichlorobenzene 6.0 0.19 1.0 ug/L EPA 8260D 1,4-Dioxane 210 D 6.0 10 ug/L EPA 8260D Barium - Total 724 1.10 10.0 ug/L EPA 6010D Benzene 5.6 0.15 1.0 ug/L EPA 8260D Chlorobenzene 12 0.17 1.0 ug/L EPA 8260D Chromium - Total 2.40 1 1.40 10.0 ug/L EPA 6010D cis-1,2-Dichloroethene 0.65 1 0.15 1.0 ug/L EPA 8260D Client ID: 4103-I2 Lab ID: CC05273-02 Anala Results Flag MDL POLL Units Method Notes 1,4-Dichlorobenzene 0.94 1 0.19 1.0 ug/L EPA 8260D Barium - Total 233 1.10 10.0 ug/L EPA 6010D Chlorobenzene 1.5 0.17 1.0 ug/L EPA 8260D Chromium - Total 6.88 1 1.40 10.0 ug/L EPA 6010D Client ID: 4103-I2 Lab ID: CC05273-02RE3 Anala Results Flag MDL POLL Units Method Notes 1,4-Dioxane 33 1.2 2.0 ug/L EPA 8260D Methylene chloride 0.78 1 0.23 1.0 ug/L EPA 8260D Client ID: 4103-I3 Lab ID: CC05273-03 Anala Results Flag MDL POLL Units Method Notes Barium - Total 71.4 1.10 10.0 ug/L EPA 6010D Chromium - Total 3.39 1 1.40 10.0 ug/L EPA 6010D Client ID: 4103-I3 Lab ID: CC05273-03RE3 Anala Results Flag MDL POLL Units Method Notes 1,4-Dichlorobenzene 0.71 1 0.19 1.0 ug/L EPA 8260D 1,4-Dioxane 46 1.2 2.0 ug/L EPA 8260D Client ID: 4303-Trip Blank I Lab ID: CC05273-04 Anala Results Flag MDL POLL Units Method Notes Methylene chloride 0.50 1 0.23 1.0 ug/L EPA 8260D Client ID: 4103-I4 Lab ID: CC06162-01 Anala Results Flag MDL POLL Units Method Notes 1,4-Dichlorobenzene 3.1 0.19 1.0 ug/L EPA 8260D Acetone 13 1 10 20 ug/L EPA 8260D Barium - Total 599 1.10 10.0 ug/L EPA 6010D Chlorobenzene 5.4 0.17 1.0 ug/L EPA 8260D Chromium - Total 1.94 1 1.40 10.0 ug/L EPA 6010D Client ID: 4103-I4 Lab ID: CC06162-01RE1 Anala Results Flag MDL POLL Units Method Notes 1,4-Dioxane 55 1.2 2.0 ug/L EPA 8260D FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 4 Of 32 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4103-Il Lab Sample ID:CC05273-01 Received: 04/15/19 10:00 Matrix: Ground Water Sampled:04/12/19 11:49 Work Order: CCO5273 Project: White Street LF-Phase I Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL I'Q Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]^ 0.17 U ug/L 1 0.17 1.0 9D19032 EPA 8260D 04/20/19 17:01 MRK 1,1,1-Trichloroethane [71-55-6]^ 0.12 U ug/L 1 0.12 1.0 9D19032 EPA 8260D 04/20/19 17:01 MRK 1,1,2,2-Tetrachloroethane [79-34-5]^ 0.28 U ug/L 1 0.28 1.0 9D19032 EPA 8260D 04/20/19 17:01 MRK 1,1,2-Trichloroethane [79-00-5]^ 0.14 U ug/L 1 0.14 1.0 9D19032 EPA 8260D 04/20/19 17:01 MRK 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 9D19032 EPA 8260D 04/20/19 17:01 MRK 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 9D19032 EPA 8260D 04/20/19 17:01 MRK 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 9D19032 EPA 8260D 04/20/19 17:01 MRK 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 9D19032 EPA 8260D 04/20/19 17:01 MRK 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 9D19032 EPA 8260D 04/20/19 17:01 MRK 1,2-Dichlorobenzene [95-50-1]A 0.43 J ug/L 1 0.19 1.0 9D19032 EPA 8260D 04/20/19 17:01 MRK 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 9D19032 EPA 8260D 04/20/19 17:01 MRK 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 9D19032 EPA 8260D 04/20/19 17:01 MRK 1,4-Dichlorobenzene [106-46-7]A 6.0 ug/L 1 0.19 1.0 9D19032 EPA 8260D 04/20/19 17:01 MRK 2-Butanone [78-93-3]^ 1.3 U ug/L 1 1.3 5.0 9D19032 EPA 8260D 04/20/19 17:01 MRK 2-Hexanone [591-78-6]^ 0.88 U ug/L 1 0.88 5.0 9D19032 EPA 8260D 04/20/19 17:01 MRK 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 9D19032 EPA 8260D 04/20/19 17:01 MRK Acetone [67-64-1]^ 10 U ug/L 1 10 20 9D19032 EPA 8260D 04/20/19 17:01 MRK Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 9D19032 EPA 8260D 04/20/19 17:01 MRK Benzene [71-43-2]A 5.6 ug/L 1 0.15 1.0 9D19032 EPA 8260D 04/20/19 17:01 MRK Bromochloromethane [74-97-5]^ 0.48 U ug/L 1 0.48 1.0 9D19032 EPA 8260D 04/20/19 17:01 MRK Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 9D19032 EPA 8260D 04/20/19 17:01 MRK Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 9D19032 EPA 8260D 04/20/19 17:01 MRK Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 9D19032 EPA 8260D 04/20/19 17:01 MRK Carbon disulfide [75-15-0]^ 1.5 U ug/L 1 1.5 5.0 9D19032 EPA 8260D 04/20/19 17:01 MRK Carbon tetrachloride [56-23-5]^ 0.17 U ug/L 1 0.17 1.0 9D19032 EPA 8260D 04/20/19 17:01 MRK Chlorobenzene [108-90-7]^ 12 ug/L 1 0.17 1.0 9D19032 EPA 8260D 04/20/19 17:01 MRK Chloroethane [75-00-3]^ 0.23 U ug/L 1 0.23 1.0 9D19032 EPA 8260D 04/20/19 17:01 MRK Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 9D19032 EPA 8260D 04/20/19 17:01 MRK Chloromethane [74-87-3]^ 0.13 U ug/L 1 0.13 1.0 9D19032 EPA 8260D 04/20/19 17:01 MRK cis-1,2-Dichloroethene [156-59-2]^ 0.65 J ug/L 1 0.15 1.0 9D19032 EPA 8260D 04/20/19 17:01 MRK cis-1,3-Dichloropropene [10061-01-5]^ 0.20 U ug/L 1 0.20 1.0 9D19032 EPA 8260D 04/20/19 17:01 MRK Dibromochloromethane [124-48-1]^ 0.17 U ug/L 1 0.17 1.0 9D19032 EPA 8260D 04/20/19 17:01 MRK Dibromomethane [74-95-3]^ 0.27 U ug/L 1 0.27 1.0 9D19032 EPA 8260D 04/20/19 17:01 MRK Ethylbenzene [100-41-4]^ 0.13 U ug/L 1 0.13 1.0 9D19032 EPA 8260D 04/20/19 17:01 MRK Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 9D19032 EPA 8260D 04/20/19 17:01 MRK Methylene chloride [75-09-2]^ 0.23 U ug/L 1 0.23 1.0 9D19032 EPA 8260D 04/20/19 17:01 MRK Styrene [100-42-5]^ 0.11 U ug/L 1 0.11 1.0 9D19032 EPA 8260D 04/20/19 17:01 MRK Tetrachloroethene [127-18-4]^ 0.17 U ug/L 1 0.17 1.0 9D19032 EPA 8260D 04/20/19 17:01 MRK Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 9D19032 EPA 8260D 04/20/19 17:01 MRK trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 9D19032 EPA 8260D 04/20/19 17:01 MRK trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 9D19032 EPA 8260D 04/20/19 17:01 MRK trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 U ug/L 1 0.70 1.0 9D19032 EPA 8260D 04/20/19 17:01 MRK Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 9D19032 EPA 8260D 04/20/19 17:01 MRK Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 9D19032 EPA 8260D 04/20/19 17:01 MRK Vinyl acetate [108-05-4]^ 0.95 U ug/L 1 0.95 5.0 9D19032 EPA 8260D 04/20/19 17:01 MRK Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 9D19032 EPA 8260D 04/20/19 17:01 MRK Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 9D19032 EPA 8260D 04/20/19 17:01 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 32 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-Il Lab Sample ID:CC05273-01 Received: 04/15/19 10:00 Matrix: Ground Water Sampled:04/12/19 11:49 Work Order: CC05273 Project: White Street LF-Phase I 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 9D19032 EPA 8260D 04120119 17:01 MRK Dlbromofluoromethane 44 1 50.0 87 % 67-129 9D19032 EPA 8260D 04120119 17:01 MRK Toluene-& 53 1 50.0 107 % 59-134 9D19032 EPA 8260D 04120119 17:01 MRK Metals by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte fCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes Mercury [7439-97-6]^ 0.150 U ug/L 1 0.150 0.200 9D23028 EPA 7470A 04/24/19 11:30 RLF Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte fCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 9D22016 EPA 6010D 04/24/19 12:02 ]DH Barium [7440-39-3]^ 724 ug/L 1 1.10 10.0 9D22016 EPA 6010D 04/24/19 12:02 ]DH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 9D22016 EPA 6010D 04/24/19 12:02 ]DH Chromium [7440-47-3]^ 2.40 J ug/L 1 1.40 10.0 9D22016 EPA 6010D 04/24/19 12:02 ]DH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 9D22016 EPA 6010D 04/24/19 12:02 ]DH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 9D22016 EPA 6010D 04/24/19 12:02 ]DH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 9D22016 EPA 6010D 04/24/19 12:02 ]DH Volatile Organic Compounds by GCMS SIM Isotope Dilution Analyte fCAS Numberl 1,4-Dioxane [123-91-1] Surrogates Toluene-& Results Flag Units DF MDL P L Batch Method Analyzed By Notes 210 D ug/L 5 6.0 10 9D19047 EPA 8260D 04/19/19 19:47 KKW Results DF Snike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes 6.3 1 5.00 126 % 75-125 9D19047 EPA 8260D 0411911919:47 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 6 Of 32 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4103-I2 Lab Sample ID:CC05273-02 Received: 04/15/19 10:00 Matrix: Ground Water Sampled:04/12/19 14:39 Work Order: CCO5273 Project: White Street LF-Phase I Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL I'Q Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]^ 0.17 U ug/L 1 0.17 1.0 9D19032 EPA 8260D 04/20/19 17:32 MRK 1,1,1-Trichloroethane [71-55-6]^ 0.12 U ug/L 1 0.12 1.0 9D19032 EPA 8260D 04/20/19 17:32 MRK 1,1,2,2-Tetrachloroethane [79-34-5]^ 0.28 U ug/L 1 0.28 1.0 9D19032 EPA 8260D 04/20/19 17:32 MRK 1,1,2-Trichloroethane [79-00-5]^ 0.14 U ug/L 1 0.14 1.0 9D19032 EPA 8260D 04/20/19 17:32 MRK 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 9D19032 EPA 8260D 04/20/19 17:32 MRK 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 9D19032 EPA 8260D 04/20/19 17:32 MRK 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 9D19032 EPA 8260D 04/20/19 17:32 MRK 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 9D19032 EPA 8260D 04/20/19 17:32 MRK 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 9D19032 EPA 8260D 04/20/19 17:32 MRK 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 9D19032 EPA 8260D 04/20/19 17:32 MRK 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 9D19032 EPA 8260D 04/20/19 17:32 MRK 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 9D19032 EPA 8260D 04/20/19 17:32 MRK 1,4-Dichlorobenzene [106-46-7]A 0.94 J ug/L 1 0.19 1.0 9D19032 EPA 8260D 04/20/19 17:32 MRK 2-Butanone [78-93-3]^ 1.3 U ug/L 1 1.3 5.0 9D19032 EPA 8260D 04/20/19 17:32 MRK 2-Hexanone [591-78-6]^ 0.88 U ug/L 1 0.88 5.0 9D19032 EPA 8260D 04/20/19 17:32 MRK 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 9D19032 EPA 8260D 04/20/19 17:32 MRK Acetone [67-64-1]^ 10 U ug/L 1 10 20 9D19032 EPA 8260D 04/20/19 17:32 MRK Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 9D19032 EPA 8260D 04/20/19 17:32 MRK Benzene[71-43-2]^ 0.15 U ug/L 1 0.15 1.0 9D19032 EPA 8260D 04/20/19 17:32 MRK Bromochloromethane [74-97-5]^ 0.48 U ug/L 1 0.48 1.0 9D19032 EPA 8260D 04/20/19 17:32 MRK Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 9D19032 EPA 8260D 04/20/19 17:32 MRK Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 9D19032 EPA 8260D 04/20/19 17:32 MRK Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 9D19032 EPA 8260D 04/20/19 17:32 MRK Carbon disulfide [75-15-0]^ 1.5 U ug/L 1 1.5 5.0 9D19032 EPA 8260D 04/20/19 17:32 MRK Carbon tetrachloride [56-23-5]^ 0.17 U ug/L 1 0.17 1.0 9D19032 EPA 8260D 04/20/19 17:32 MRK Chlorobenzene [108-90-7]^ 1.5 ug/L 1 0.17 1.0 9D19032 EPA 8260D 04/20/19 17:32 MRK Chloroethane [75-00-3]^ 0.23 U ug/L 1 0.23 1.0 9D19032 EPA 8260D 04/20/19 17:32 MRK Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 9D19032 EPA 8260D 04/20/19 17:32 MRK Chloromethane [74-87-3]^ 0.13 U ug/L 1 0.13 1.0 9D19032 EPA 8260D 04/20/19 17:32 MRK cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 9D19032 EPA 8260D 04/20/19 17:32 MRK cis-1,3-Dichloropropene [10061-01-5]^ 0.20 U ug/L 1 0.20 1.0 9D19032 EPA 8260D 04/20/19 17:32 MRK Dibromochloromethane [124-48-1]^ 0.17 U ug/L 1 0.17 1.0 9D19032 EPA 8260D 04/20/19 17:32 MRK Dibromomethane [74-95-3]^ 0.27 U ug/L 1 0.27 1.0 9D19032 EPA 8260D 04/20/19 17:32 MRK Ethylbenzene [100-41-4]^ 0.13 U ug/L 1 0.13 1.0 9D19032 EPA 8260D 04/20/19 17:32 MRK Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 9D19032 EPA 8260D 04/20/19 17:32 MRK Methylene chloride [75-09-2]A 0.78 J ug/L 1 0.23 1.0 9D22031 EPA 8260D 04/23/19 17:34 MRK Styrene [100-42-5]^ 0.11 U ug/L 1 0.11 1.0 9D19032 EPA 8260D 04/20/19 17:32 MRK Tetrachloroethene [127-18-4]^ 0.17 U ug/L 1 0.17 1.0 9D19032 EPA 8260D 04/20/19 17:32 MRK Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 9D19032 EPA 8260D 04/20/19 17:32 MRK trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 9D19032 EPA 8260D 04/20/19 17:32 MRK trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 9D19032 EPA 8260D 04/20/19 17:32 MRK trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 U ug/L 1 0.70 1.0 9D19032 EPA 8260D 04/20/19 17:32 MRK Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 9D19032 EPA 8260D 04/20/19 17:32 MRK Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 9D19032 EPA 8260D 04/20/19 17:32 MRK Vinyl acetate [108-05-4]^ 0.95 U ug/L 1 0.95 5.0 9D19032 EPA 8260D 04/20/19 17:32 MRK Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 9D19032 EPA 8260D 04/20/19 17:32 MRK Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 9D19032 EPA 8260D 04/20/19 17:32 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 32 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-I2 Lab Sample ID:CC05273-02 Received: 04/15/19 10:00 Matrix: Ground Water Sampled:04/12/19 14:39 Work Order: CC05273 Project: White Street LF-Phase I 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 9D19032 EPA 8260D 04120119 1732 MRK 4-Bromofluorobenzene 53 1 50.0 106 % 53-136 9D22031 EPA 8260D 04123119 17:34 MRK Dibromofluoromethane 45 1 50.0 90 % 67-129 9D19032 EPA 8260D 04120119 1732 MRK Dibromofluoromethane 56 1 50.0 112 % 67-129 9D22031 EPA 8260D 04123119 17:34 MRK Toluene-& 55 1 50.0 110 % 59-134 9D19032 EPA 8260D 04120119 1732 MRK Toluene-& 59 1 50.0 118 % 59-134 9D22031 EPA 8260D 04123119 17:34 MRK Metals by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte fCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes Mercury [7439-97-6]^ 0.150 U ug/L 1 0.150 0.200 9D23028 EPA 7470A 04/24/19 11:32 RLF Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte fCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 9D22016 EPA 6010D 04/24/19 12:05 ]DH Barium [7440-39-3]^ 233 ug/L 1 1.10 10.0 9D22016 EPA 6010D 04/24/19 12:05 ]DH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 9D22016 EPA 6010D 04/24/19 12:05 ]DH Chromium [7440-47-3]^ 6.88 J ug/L 1 1.40 10.0 9D22016 EPA 6010D 04/24/19 12:05 ]DH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 9D22016 EPA 6010D 04/24/19 12:05 ]DH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 9D22016 EPA 6010D 04/24/19 12:05 ]DH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 9D22016 EPA 6010D 04/24/19 12:05 ]DH Volatile Organic Compounds by GCMS SIM Isotope Dilution Analyte fCAS Numberl 1,4-Dioxane [123-91-1] Surrogates Toluene-& Results Flag Units DF MDL P L Batch Method Analyzed By Notes 33 ug/L 1 1.2 2.0 9D22021 EPA 8260D 04/22/19 13:02 KKW Results DF Snike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes 5.1 1 5.00 102 % 75-125 9D22021 EPA 6260D 0412211913:02 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 32 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4103-I3 Lab Sample ID:CC05273-03 Received: 04/15/19 10:00 Matrix: Ground Water Sampled:04/12/19 14:02 Work Order: CCO5273 Project: White Street LF-Phase I Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL I'Q Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]^ 0.17 U ug/L 1 0.17 1.0 9D23032 EPA 8260D 04/24/19 10:59 MRK 1,1,1-Trichloroethane [71-55-6]^ 0.12 U ug/L 1 0.12 1.0 9D23032 EPA 8260D 04/24/19 10:59 MRK 1,1,2,2-Tetrachloroethane [79-34-5]^ 0.28 U ug/L 1 0.28 1.0 9D23032 EPA 8260D 04/24/19 10:59 MRK 1,1,2-Trichloroethane [79-00-5]^ 0.14 U ug/L 1 0.14 1.0 9D23032 EPA 8260D 04/24/19 10:59 MRK 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 9D23032 EPA 8260D 04/24/19 10:59 MRK 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 9D23032 EPA 8260D 04/24/19 10:59 MRK 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 9D23032 EPA 8260D 04/24/19 10:59 MRK 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 9D23032 EPA 8260D 04/24/19 10:59 MRK 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 9D23032 EPA 8260D 04/24/19 10:59 MRK 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 9D23032 EPA 8260D 04/24/19 10:59 MRK 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 9D23032 EPA 8260D 04/24/19 10:59 MRK 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 9D23032 EPA 8260D 04/24/19 10:59 MRK 1,4-Dichlorobenzene [106-46-7]A 0.71 J ug/L 1 0.19 1.0 9D23032 EPA 8260D 04/24/19 10:59 MRK 2-Butanone [78-93-3]^ 1.3 U ug/L 1 1.3 5.0 9D23032 EPA 8260D 04/24/19 10:59 MRK 2-Hexanone [591-78-6]^ 0.88 U ug/L 1 0.88 5.0 9D23032 EPA 8260D 04/24/19 10:59 MRK 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 9D23032 EPA 8260D 04/24/19 10:59 MRK Acetone [67-64-1]^ 10 U ug/L 1 10 20 9D23032 EPA 8260D 04/24/19 10:59 MRK Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 9D23032 EPA 8260D 04/24/19 10:59 MRK Benzene[71-43-2]^ 0.15 U ug/L 1 0.15 1.0 9D23032 EPA 8260D 04/24/19 10:59 MRK Bromochloromethane [74-97-5]^ 0.48 U ug/L 1 0.48 1.0 9D23032 EPA 8260D 04/24/19 10:59 MRK Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 9D23032 EPA 8260D 04/24/19 10:59 MRK Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 9D23032 EPA 8260D 04/24/19 10:59 MRK Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 9D23032 EPA 8260D 04/24/19 10:59 MRK Carbon disulfide [75-15-0]^ 1.5 U ug/L 1 1.5 5.0 9D23032 EPA 8260D 04/24/19 10:59 MRK Carbon tetrachloride [56-23-5]^ 0.17 U ug/L 1 0.17 1.0 9D23032 EPA 8260D 04/24/19 10:59 MRK Chlorobenzene [108-90-7]^ 0.17 U ug/L 1 0.17 1.0 9D23032 EPA 8260D 04/24/19 10:59 MRK Chloroethane [75-00-3]^ 0.23 U ug/L 1 0.23 1.0 9D23032 EPA 8260D 04/24/19 10:59 MRK Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 9D23032 EPA 8260D 04/24/19 10:59 MRK Chloromethane [74-87-3]^ 0.13 U ug/L 1 0.13 1.0 9D23032 EPA 8260D 04/24/19 10:59 MRK cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 9D23032 EPA 8260D 04/24/19 10:59 MRK cis-1,3-Dichloropropene [10061-01-5]^ 0.20 U ug/L 1 0.20 1.0 9D23032 EPA 8260D 04/24/19 10:59 MRK Dibromochloromethane [124-48-1]^ 0.17 U ug/L 1 0.17 1.0 9D23032 EPA 8260D 04/24/19 10:59 MRK Dibromomethane [74-95-3]^ 0.27 U ug/L 1 0.27 1.0 9D23032 EPA 8260D 04/24/19 10:59 MRK Ethylbenzene [100-41-4]^ 0.13 U ug/L 1 0.13 1.0 9D23032 EPA 8260D 04/24/19 10:59 MRK Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 9D23032 EPA 8260D 04/24/19 10:59 MRK Methylene chloride [75-09-2]^ 0.23 U ug/L 1 0.23 1.0 9D23032 EPA 8260D 04/24/19 10:59 MRK Styrene [100-42-5]^ 0.11 U ug/L 1 0.11 1.0 9D23032 EPA 8260D 04/24/19 10:59 MRK Tetrachloroethene [127-18-4]^ 0.17 U ug/L 1 0.17 1.0 9D23032 EPA 8260D 04/24/19 10:59 MRK Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 9D23032 EPA 8260D 04/24/19 10:59 MRK trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 9D23032 EPA 8260D 04/24/19 10:59 MRK trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 9D23032 EPA 8260D 04/24/19 10:59 MRK trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 U ug/L 1 0.70 1.0 9D23032 EPA 8260D 04/24/19 10:59 MRK Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 9D23032 EPA 8260D 04/24/19 10:59 MRK Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 9D23032 EPA 8260D 04/24/19 10:59 MRK Vinyl acetate [108-05-4]^ 0.95 U ug/L 1 0.95 5.0 9D23032 EPA 8260D 04/24/19 10:59 MRK Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 9D23032 EPA 8260D 04/24/19 10:59 MRK Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 9D23032 EPA 8260D 04/24/19 10:59 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 32 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-I3 Lab Sample ID:CC05273-03 Received: 04/15/19 10:00 Matrix: Ground Water Sampled:04/12/19 14:02 Work Order: CC05273 Project: White Street LF-Phase I 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 61 1 50.0 123 % 53-136 9D23032 EPA 8260D 04124119 10:59 MRK Dlbromofluoromethane 43 1 50.0 87 % 67-129 9D23032 EPA 8260D 04124119 10:59 MRK Toluene-& 58 1 50.0 116 % 59-134 9D23032 EPA 8260D 04124119 10:59 MRK Metals by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte fCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes Mercury [7439-97-6]^ 0.150 U ug/L 1 0.150 0.200 9D23028 EPA 7470A 04/24/19 11:35 RLF Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte fCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 9D22016 EPA 6010D 04/24/19 16:00 ]DH Barium [7440-39-3]^ 71.4 ug/L 1 1.10 10.0 9D22016 EPA 6010D 04/24/19 16:00 ]DH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 9D22016 EPA 6010D 04/24/19 16:00 ]DH Chromium [7440-47-3]^ 3.39 J ug/L 1 1.40 10.0 9D22016 EPA 6010D 04/24/19 16:00 ]DH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 9D22016 EPA 6010D 04/24/19 16:00 ]DH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 9D22016 EPA 6010D 04/24/19 16:00 ]DH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 9D22016 EPA 6010D 04/24/19 16:00 ]DH Volatile Organic Compounds by GCMS SIM Isotope Dilution Analyte fCAS Numberl 1,4-Dioxane [123-91-11 Surrogates Toluene-& Results Flag Units DF MDL P L Batch Method Analyzed By Notes 46 ug/L 1 1.2 2.0 9D22021 EPA 8260D 04/22/19 13:38 KKW Results DF Snike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes 5.4 1 5.00 108 % 75-125 9D22021 EPA 8260D 041221191328 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 32 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4103-Trip Blank I Lab Sample ID:CC05273-04 Received: 04/15/19 10:00 Matrix: Water Sampled:04/12/19 14:02 Work Order: CCO5273 Project: White Street LF-Phase I Sampled By:ENCO Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL POL 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 00:42 MRK 1,1,1-Trichloroethane [71-55-6]^ 0.12 U ug/L 1 0.12 1.0 9D19024 EPA 8260D 04/20/19 00:42 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 00:42 MRK 1,1,2-Trichloroethane [79-00-5]^ 0.14 U ug/L 1 0.14 1.0 9D19024 EPA 8260D 04/20/19 00:42 MRK 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 9D19024 EPA 8260D 04/20/19 00:42 MRK 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 9D19024 EPA 8260D 04/20/19 00:42 MRK 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 9D19024 EPA 8260D 04/20/19 00:42 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 00:42 MRK 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 9D19024 EPA 8260D 04/20/19 00:42 MRK 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 9D19024 EPA 8260D 04/20/19 00:42 MRK 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 9D19024 EPA 8260D 04/20/19 00:42 MRK 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 9D19024 EPA 8260D 04/20/19 00:42 MRK 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 9D19024 EPA 8260D 04/20/19 00:42 MRK 2-Butanone [78-93-3]^ 1.3 U ug/L 1 1.3 5.0 9D19024 EPA 8260D 04/20/19 00:42 MRK 2-Hexanone [591-78-6]^ 0.88 U ug/L 1 0.88 5.0 9D19024 EPA 8260D 04/20/19 00:42 MRK 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 9D19024 EPA 8260D 04/20/19 00:42 MRK Acetone [67-64-1]^ 10 U ug/L 1 10 20 9D19024 EPA 8260D 04/20/19 00:42 MRK Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 9D19024 EPA 8260D 04/20/19 00:42 MRK Benzene[71-43-2]^ 0.15 U ug/L 1 0.15 1.0 9D19024 EPA 8260D 04/20/19 00:42 MRK Bromochloromethane [74-97-5]^ 0.48 U ug/L 1 0.48 1.0 9D19024 EPA 8260D 04/20/19 00:42 MRK Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 00:42 MRK Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 9D19024 EPA 8260D 04/20/19 00:42 MRK Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 9D19024 EPA 8260D 04/20/19 00:42 MRK Carbon disulfide [75-15-0]^ 1.5 U ug/L 1 1.5 5.0 9D19024 EPA 8260D 04/20/19 00:42 MRK Carbon tetrachloride [56-23-5]^ 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 00:42 MRK Chlorobenzene [108-90-7]^ 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 00:42 MRK Chloroethane [75-00-3]^ 0.23 U ug/L 1 0.23 1.0 9D19024 EPA 8260D 04/20/19 00:42 MRK Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 9D19024 EPA 8260D 04/20/19 00:42 MRK Chloromethane [74-87-3]^ 0.13 U ug/L 1 0.13 1.0 9D19024 EPA 8260D 04/20/19 00:42 MRK cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 9D19024 EPA 8260D 04/20/19 00:42 MRK cis-1,3-Dichloropropene [10061-01-5]^ 0.20 U ug/L 1 0.20 1.0 9D19024 EPA 8260D 04/20/19 00:42 MRK Dibromochloromethane [124-48-1]^ 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 00:42 MRK Dibromomethane [74-95-3]^ 0.27 U ug/L 1 0.27 1.0 9D19024 EPA 8260D 04/20/19 00:42 MRK Ethylbenzene [100-41-4]^ 0.13 U ug/L 1 0.13 1.0 9D19024 EPA 8260D 04/20/19 00:42 MRK Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 9D19024 EPA 8260D 04/20/19 00:42 MRK Methylene chloride [75-09-2]^ 0.50 1 ug/L 1 0.23 1.0 9D19024 EPA 8260D 04/20/19 00:42 MRK Styrene [100-42-5]^ 0.11 U ug/L 1 0.11 1.0 9D19024 EPA 8260D 04/20/19 00:42 MRK Tetrachloroethene [127-18-4]^ 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 00:42 MRK Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 9D19024 EPA 8260D 04/20/19 00:42 MRK trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 9D19024 EPA 8260D 04/20/19 00:42 MRK trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 9D19024 EPA 8260D 04/20/19 00:42 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 00:42 MRK Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 9D19024 EPA 8260D 04/20/19 00:42 MRK Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 9D19024 EPA 8260D 04/20/19 00:42 MRK Vinyl acetate [108-05-4]^ 0.95 U ug/L 1 0.95 5.0 9D19024 EPA 8260D 04/20/19 00:42 MRK Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 9D19024 EPA 8260D 04/20/19 00:42 MRK Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 9D19024 EPA 8260D 04/20/19 00:42 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 32 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-Trip Blank I Lab Sample ID:CC05273-04 Received: 04/15/19 10:00 Matrix: Water Sampled:04/12/19 14:02 Work Order: CC05273 Project: White Street LF-Phase I 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 00:42 MRK Dlbromofluoromethane 47 1 50.0 94 % 67-129 9D19024 EPA 8260D 04120119 00:42 MRK Toluene-& 55 1 50.0 110 % 59-134 9D19024 EPA 8260D 04120119 00:42 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 21:33 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes Toluene-& 5.8 1 5.00 116 % 75-125 9D19047 EPA 8260D 04119119 21:33 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 32 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4103-I4 Lab Sample ID:CC06162-01 Received: 04/17/19 11:30 Matrix: Ground Water Sampled:04/15/19 13:52 Work Order: CC06162 Project: White Street LF-Phase I Sampled By:ASHLEY MARTIN Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL I'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 23:25 MRK 1,1,1-Trichloroethane [71-55-6]^ 0.12 U ug/L 1 0.12 1.0 9D23024 EPA 8260D 04/23/19 23:25 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 23:25 MRK 1,1,2-Trichloroethane [79-00-5]^ 0.14 U ug/L 1 0.14 1.0 9D23024 EPA 8260D 04/23/19 23:25 MRK 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 9D23024 EPA 8260D 04/23/19 23:25 MRK 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 9D23024 EPA 8260D 04/23/19 23:25 MRK 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 9D23024 EPA 8260D 04/23/19 23:25 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 23:25 MRK 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 9D23024 EPA 8260D 04/23/19 23:25 MRK 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 9D23024 EPA 8260D 04/23/19 23:25 MRK 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 9D23024 EPA 8260D 04/23/19 23:25 MRK 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 9D23024 EPA 8260D 04/23/19 23:25 MRK 1,4-Dichlorobenzene [106-46-7]A 3.1 ug/L 1 0.19 1.0 9D23024 EPA 8260D 04/23/19 23:25 MRK 2-Butanone [78-93-3]^ 1.3 U ug/L 1 1.3 5.0 9D23024 EPA 8260D 04/23/19 23:25 MRK 2-Hexanone [591-78-6]^ 0.88 U ug/L 1 0.88 5.0 9D23024 EPA 8260D 04/23/19 23:25 MRK 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 9D23024 EPA 8260D 04/23/19 23:25 MRK Acetone [67-64-1]A 13 J ug/L 1 10 20 9D23024 EPA 8260D 04/23/19 23:25 MRK Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 9D23024 EPA 8260D 04/23/19 23:25 MRK Benzene[71-43-2]^ 0.15 U ug/L 1 0.15 1.0 9D23024 EPA 8260D 04/23/19 23:25 MRK Bromochloromethane [74-97-5]^ 0.48 U ug/L 1 0.48 1.0 9D23024 EPA 8260D 04/23/19 23:25 MRK Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 9D23024 EPA 8260D 04/23/19 23:25 MRK Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 9D23024 EPA 8260D 04/23/19 23:25 MRK Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 9D23024 EPA 8260D 04/23/19 23:25 MRK Carbon disulfide [75-15-0]^ 1.5 U ug/L 1 1.5 5.0 9D23024 EPA 8260D 04/23/19 23:25 MRK Carbon tetrachloride [56-23-5]^ 0.17 U ug/L 1 0.17 1.0 9D23024 EPA 8260D 04/23/19 23:25 MRK Chlorobenzene [108-90-7]^ 5.4 ug/L 1 0.17 1.0 9D23024 EPA 8260D 04/23/19 23:25 MRK Chloroethane [75-00-3]^ 0.23 U ug/L 1 0.23 1.0 9D23024 EPA 8260D 04/23/19 23:25 MRK Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 9D23024 EPA 8260D 04/23/19 23:25 MRK Chloromethane [74-87-3]^ 0.13 U ug/L 1 0.13 1.0 9D23024 EPA 8260D 04/23/19 23:25 MRK cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 9D23024 EPA 8260D 04/23/19 23:25 MRK cis-1,3-Dichloropropene [10061-01-5]^ 0.20 U ug/L 1 0.20 1.0 9D23024 EPA 8260D 04/23/19 23:25 MRK Dibromochloromethane [124-48-1]^ 0.17 U ug/L 1 0.17 1.0 9D23024 EPA 8260D 04/23/19 23:25 MRK Dibromomethane [74-95-3]^ 0.27 U ug/L 1 0.27 1.0 9D23024 EPA 8260D 04/23/19 23:25 MRK Ethylbenzene [100-41-4]^ 0.13 U ug/L 1 0.13 1.0 9D23024 EPA 8260D 04/23/19 23:25 MRK Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 9D23024 EPA 8260D 04/23/19 23:25 MRK Methylene chloride [75-09-2]^ 0.23 U ug/L 1 0.23 1.0 9D23024 EPA 8260D 04/23/19 23:25 MRK Styrene[100-42-5]^ 0.11 U ug/L 1 0.11 1.0 9D23024 EPA 8260D 04/23/19 23:25 MRK Tetrachloroethene [127-18-4]^ 0.17 U ug/L 1 0.17 1.0 9D23024 EPA 8260D 04/23/19 23:25 MRK Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 9D23024 EPA 8260D 04/23/19 23:25 MRK trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 9D23024 EPA 8260D 04/23/19 23:25 MRK trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 9D23024 EPA 8260D 04/23/19 23:25 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 23:25 MRK Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 9D23024 EPA 8260D 04/23/19 23:25 MRK Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 9D23024 EPA 8260D 04/23/19 23:25 MRK Vinyl acetate [108-05-4]^ 0.95 U ug/L 1 0.95 5.0 9D23024 EPA 8260D 04/23/19 23:25 MRK Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 9D23024 EPA 8260D 04/23/19 23:25 MRK Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 9D23024 EPA 8260D 04/23/19 23:25 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 32 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-I4 Lab Sample ID:CC06162-01 Received: 04/17/19 11:30 Matrix: Ground Water Sampled:04/15/19 13:52 Work Order: CC06162 Project: White Street LF-Phase I 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 56 1 50.0 112 % 53-136 9D23024 EPA 8260D 04123119 23:25 MRK Dlbromofluoromethane 45 1 50.0 89 % 67-129 9D23024 EPA 8260D 04123119 23:25 MRK Toluene-& 56 1 50.0 112 % 59-134 9D23024 EPA 8260D 04123119 23:25 MRK Metals by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte fCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes Mercury [7439-97-6]^ 0.150 U ug/L 1 0.150 0.200 9D25029 EPA 7470A 04/26/19 11:45 RLF Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte fCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 9D24027 EPA 6010D 04/26/19 13:40 ]DH Barium [7440-39-3]^ 599 ug/L 1 1.10 10.0 9D24027 EPA 6010D 04/26/19 13:40 ]DH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 9D24027 EPA 6010D 04/26/19 13:40 ]DH Chromium [7440-47-3]^ 1.94 J ug/L 1 1.40 10.0 9D24027 EPA 6010D 04/26/19 13:40 ]DH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 9D24027 EPA 6010D 04/26/19 13:40 ]DH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 9D24027 EPA 6010D 04/26/19 13:40 ]DH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 9D24027 EPA 6010D 04/26/19 13:40 ]DH Volatile Organic Compounds by GCMS SIM Isotope Dilution Analyte fCAS Numberl 1,4-Dioxane [123-91-11 Surrogates Toluene-& Results Flag Units DF MDL P L Batch Method Analyzed By Notes 55 ug/L 1 1.2 2.0 9D23025 EPA 8260D 04/23/19 20:01 KKW Results DF Snike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes 5.4 1 5.00 109 % 75-125 9D23025 EPA 8260D 04123119 20:01 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 32 (� �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 32 (� �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 9D19032 - EPA 5030E MS Blank (9D39032-BLK3) Prepared: 04/19/2019 15:48 Analyzed: 04/20/2019 09:08 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 32 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 9D19032 - EPA 5030E MS - Continued Blank (9D19032-BLK3) Continued Prepared: 04/19/2019 15:48 Analyzed: 04/20/2019 09:08 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 57 u9/L 50.0 114 53-136 Dlbromofluoromethane 44 u9/L 50.0 88 67-129 Toluene-c48 55 u9/L 50.0 110 59-134 LCS (9D19032-BS1) Prepared: 04/19/2019 15:48 Analyzed: 04/20/2019 07:02 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 91 75-133 Benzene 20 1.0 ug/L 20.0 98 80-134 Chlorobenzene 19 1.0 ug/L 20.0 94 80-120 Toluene 19 1.0 ug/L 20.0 96 71-120 Trichloroethene 22 1.0 ug/L 20.0 109 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 32 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 9D19032 - EPA 5030E MS - Continued Matrix Spike (9D19032-MS3) Prepared: 04/19/2019 15:48 Analyzed: 04/20/2019 07:33 Source: CC06287-04 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 93 75-133 Benzene 21 1.0 ug/L 20.0 0.15 U 105 80-134 Chlorobenzene 19 1.0 ug/L 20.0 0.17 U 94 80-120 Toluene 21 1.0 ug/L 20.0 0.14 U 104 71-120 Trichloroethene 27 1.0 ug/L 20.0 0.15 U 137 74-120 QM-07 Matrix Spike Dup (9D19032-MSDS) Prepared: 04/19/2019 15:48 Analyzed: 04/20/2019 08:05 Source: CC06287-04 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 88 75-133 5 20 Benzene 19 1.0 ug/L 20.0 0.15 U 95 80-134 11 17 Chlorobenzene 19 1.0 ug/L 20.0 0.17 U 94 80-120 0.3 16 Toluene 19 1.0 ug/L 20.0 0.14 U 96 71-120 8 17 Trichloroethene 27 1.0 ug/L 20.0 0.15 U 135 74-120 1 22 QM-07 Batch 9D22031 - EPA 5030E MS Blank (91322031-BLK3) Prepared: 04/23/2019 00:58 Analyzed: 04/23/2019 13:03 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 18 Of 32 QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 9D22031 - EPA 5030E MS - Continued (� �Eo www.encolabs.com Blank (9D22031-BLK3) Continued Prepared: 04/23/2019 00:58 Analyzed: 04/23/2019 13:03 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 53 u9/L 50.0 107 53-136 Dibromofluoromethane 54 u91L 50.0 107 67-129 Toluene-d8 59 u9/L 50.0 118 59-134 LCS (9D22031-BS1) Prepared: 04/23/2019 00:58 Analyzed: 04/23/2019 09:30 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 96 75-133 Benzene 22 1.0 ug/L 20.0 109 80-134 Chlorobenzene 19 1.0 ug/L 20.0 96 80-120 Toluene 21 1.0 ug/L 20.0 104 71-120 Trichloroethene 24 1.0 ug/L 20.0 120 74-120 Matrix Spike (9D22031-MS1) Prepared: 04/23/2019 00:58 Analyzed: 04/23/2019 11:32 Source: CC06172-10 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 0.21 U 99 75-133 Benzene 24 1.0 ug/L 20.0 0.15 U 118 80-134 Chlorobenzene 21 1.0 ug/L 20.0 0.17 U 103 80-120 Toluene 22 1.0 ug/L 20.0 0.14 U 108 71-120 Trichloroethene 21 1.0 ug/L 20.0 0.15 U 105 74-120 Matrix Spike Dup (91322031-MS131) Prepared: 04/23/2019 00:58 Analyzed: 04/23/2019 12:02 Source: CC06172-10 Spike Analvte Result Flaa POL Units Level 1,1-Dichloroethene 19 1.0 ug/L 20.0 Benzene 23 1.0 ug/L 20.0 Chlorobenzene 20 1.0 ug/L 20.0 Toluene 21 1.0 ug/L 20.0 Trichloroethene 21 1.0 ug/L 20.0 Source %REC Result %REC Limits 0.21 U 97 75-133 0.15 U 114 80-134 0.17 U 100 80-120 0.14 U 107 71-120 0.15 U 104 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 4 17 3 16 0.09 17 0.9 22 Page 19 of 32 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 9D23024 - EPA 5030E MS Blank (9D23024-BLK3) Prepared: 04/23/2019 00:21 Analyzed: 04/23/2019 17:07 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 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 59 u9/L 50.0 118 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 20 Of 32 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 9D23024 - EPA 5030E MS - Continued Blank (9D23024-BLK3) Continued Prepared: 04/23/2019 00:21 Analyzed: 04/23/2019 17:07 Spike Source %REC RPD Analvte Result Flaq Q Units Level Result %REC Limits RPD Limit Notes Toluene-d8 55 ug/L 50.0 109 59-134 LCS (91323024-BSI) 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 Matrix Spike (91323024-MS1) 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 (91323024-MSDS) 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 Batch 9D23032 - EPA 5030E MS Blank (9D23032-BLK3) Prepared: 04/23/2019 14:42 Analyzed: 04/24/2019 05:13 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 21 of 32 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 9D23032 - EPA 5030E MS - Continued Blank (9D23032-BLK3) Continued Prepared: 04/23/2019 14:42 Analyzed: 04/24/2019 05:13 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 58 u9/L 50.0 115 53-136 Dlbromofluoromethane 45 u9/L 50.0 90 67-129 Toluene-c48 56 u9/L 50.0 112 59-134 LCS (9D23032-BS1) Prepared: 04/23/2019 14:42 Analyzed: 04/24/2019 03:07 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 88 75-133 Benzene 21 1.0 ug/L 20.0 104 80-134 Chlorobenzene 19 1.0 ug/L 20.0 94 80-120 Toluene 20 1.0 ug/L 20.0 101 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 22 Of 32 QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 9D23032 - EPA 5030E MS - Continued (� �Eo www.encolabs.com Matrix Spike (9D23032-MS3) Prepared: 04/23/2019 14:42 Analyzed: 04/24/2019 03:38 Source: CC06287-10 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 91 75-133 Benzene 23 1.0 ug/L 20.0 0.15 U 117 80-134 Chlorobenzene 20 1.0 ug/L 20.0 0.17 U 100 80-120 Toluene 21 1.0 ug/L 20.0 0.14 U 107 71-120 Trichloroethene 27 1.0 ug/L 20.0 0.15 U 135 74-120 QM-07 Matrix Spike Dup (9D23032-MSDI) Prepared: 04/23/2019 14:42 Analyzed: 04/24/2019 04:10 Source: CC06287-10 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 89 75-133 2 20 Benzene 21 1.0 ug/L 20.0 0.15 U 107 80-134 8 17 Chlorobenzene 19 1.0 ug/L 20.0 0.17 U 93 80-120 8 16 Toluene 20 1.0 ug/L 20.0 0.14 U 102 71-120 5 17 Trichloroethene 26 1.0 ug/L 20.0 0.15 U 132 74-120 2 22 QM-07 Metals by EPA 6000/7000 Series Methods - Quality Control Batch 9D23028 - EPA 245.1 Blank (9D23028-BLK3) Prepared: 04/23/2019 13:54 Analyzed: 04/24/2019 10:45 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 0.150 U 0.200 ug/L LCS (9D23028-BSI) Prepared: 04/23/2019 13:54 Analyzed: 04/24/2019 10:52 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 5.54 0.200 ug/L 5.00 111 80-120 Matrix Spike (9D23028-MS1) Prepared: 04/23/2019 13:54 Analyzed: 04/24/2019 10:57 Source: CCO5104-03 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 5.46 0.200 ug/L 5.00 0.150 U 109 75-125 Matrix Spike Dup (9D23028-MSD1) Prepared: 04/23/2019 13:54 Analyzed: 04/24/2019 10:59 Source: CCO5104-03 Spike Source %REC RPD Analvte Result Flaq Q Units Level Result %REC Limits RPD Limit Notes Mercury 5.56 0.200 ug/L 5.00 0.150 U 111 75-125 2 25 Post Spike (9D23028-PSI) Prepared: 04/23/2019 13:54 Analyzed: 04/24/2019 11:01 Source: CCO5104-03 Analvte Mercury Batch 9D25019 - EPA 245.1 Result Flaq POL 6.34 0.200 Spike Source %REC Units Level Result %REC Limits RPD ug/L 4.76 0.0552 132 75-125 RPD Limit Notes QM-08 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 23 Of 32 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals by EPA 6000/7000 Series Methods - Quality Control Batch 9D25029 - EPA 245.1 - Continued Blank (9D25029-BLK3) Prepared: 04/25/2019 14:11 Analyzed: 04/26/2019 11:10 Spike Source %REC RPD Analvte Result Flaq Q Units Level Result %REC Limits RPD Limit Notes Mercury 0.150 U 0.200 ug/L LCS (91325029-BSI) Prepared: 04/25/2019 14:11 Analyzed: 04/26/2019 11:13 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 5.22 0.200 ug/L 5.00 104 80-120 Matrix Spike (9D25029-MS1) Prepared: 04/25/2019 14:11 Analyzed: 04/26/2019 11:18 Source: CCO5237-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 5.18 0.200 ug/L 5.00 0.150 U 104 75-125 Matrix Spike Dup (91325029-MS131) Prepared: 04/25/2019 14:11 Analyzed: 04/26/2019 11:25 Source: CCO5237-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 5.36 0.200 ug/L 5.00 0.150 U 107 75-125 3 25 Post Spike (91325029-PSI) Prepared: 04/25/2019 14:11 Analyzed: 04/26/2019 11:28 Source: CCO5237-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 5.88 0.200 ug/L 4.76 0.0543 122 75-125 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 Cadmium 0.360 U 1.00 ug/L Chromium 1.40 U 10.0 ug/L Lead 3.10 U 10.0 ug/L Selenium 6.20 U 10.0 ug/L Silver 1.90 U 10.0 ug/L LCS (9D22016-BSI) 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 Cadmium 21.6 1.00 ug/L 20.0 108 80-120 Chromium 211 10.0 ug/L 200 105 80-120 Lead 215 10.0 ug/L 200 107 80-120 Selenium 223 10.0 ug/L 200 112 80-120 Silver 215 10.0 ug/L 200 107 80-120 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 24 Of 32 (� �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 (9D22016-MS3) Prepared: 04/22/2019 11:11 Analyzed: 04/24/2019 11:17 Source: CCO5219-10 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 101 75-125 Barium 263 10.0 ug/L 200 55.4 104 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 Lead 207 10.0 ug/L 200 3.10 U 103 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 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 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 Lead 213 10.0 ug/L 200 3.10 U 106 75-125 3 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 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 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 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 Lead 0.208 0.0100 mg/L 0.200 -0.000692 104 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 Batch 9D24027 - EPA 3005A Blank (9D24027-BLK3) Prepared: 04/24/2019 11:37 Analyzed: 04/26/2019 11:38 Spike Source %REC RPD Analvte Result Flaq Q Units Level Result %REC Limits RPD Limit Notes Arsenic 7.60 U 10.0 ug/L Barium 1.10 U 10.0 ug/L Cadmium 0.360 U 1.00 ug/L Chromium 1.40 U 10.0 ug/L Lead 3.10 U 10.0 ug/L Selenium 6.20 U 10.0 ug/L Silver 1.90 U 10.0 ug/L LCS (9D24027-BSI) Prepared: 04/24/2019 11:37 Analyzed: 04/26/2019 11:46 Spike Source %REC RPD Analvte Result Flaq 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 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 25 Of 32 (� �Eo 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) Continued Prepared: 04/24/2019 11:37 Analyzed: 04/26/2019 11:46 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Cadmium 19.8 1.00 ug/L 20.0 99 80-120 Chromium 199 10.0 ug/L 200 100 80-120 Lead 197 10.0 ug/L 200 99 80-120 Selenium 208 10.0 ug/L 200 104 80-120 Silver 210 10.0 ug/L 200 105 80-120 Matrix Spike (9D24027-MS1) Prepared: 04/24/2019 11:37 Analyzed: 04/26/2019 11:48 Source: CCO5240-02 Spike Source %REC RPD Analvte Result Flaq POL 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 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 Lead 196 10.0 ug/L 200 3.10 U 98 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 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 Q 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 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 Lead 201 10.0 ug/L 200 3.10 U 100 75-125 3 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 Post Spike (9D24027-PSI) Prepared: 04/24/2019 11:37 Analyzed: 04/26/2019 12:00 Source: CCO5240-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 0.221 0.0100 mg/L 0.200 0.0122 104 80-120 Barium 0.282 0.0100 mg/L 0.200 0.0855 98 80-120 Cadmium 0.0130 0.00100 mg/L 0.0200 -0.00679 65 80-120 QM-08 Chromium 0.199 0.0100 mg/L 0.200 -0.00161 100 80-120 Lead 0.199 0.0100 mg/L 0.200 -0.00668 100 80-120 Selenium 0.142 0.0100 mg/L 0.200 -0.0796 71 80-120 QM-08 Silver 0.206 0.0100 mg/L 0.200 -0.00798 103 80-120 Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Batch 9D19047 - EPA 5030E MS Blank (9D39047-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-d8 5.8 ug/L 5.00 115 75-125 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 26 Of 32 (� �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) 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 Batch 9D21021 - 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 Batch 9D23025 - EPA 5030E MS Blank (9D23025-BLK3) Prepared: 04/23/2019 00:00 Analyzed: 04/23/2019 10:32 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-& 5.2 u9/L 5.00 104 75-125 LCS (9D23025-BS1) Prepared: 04/23/2019 00:00 Analyzed: 04/23/2019 10:00 Spike Source %REC RPD Analvte Result Flaa POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 27 2.0 ug/L 25.0 107 80-133 Toluene-d8 5.1 u91L 5.00 102 75-125 Matrix Spike (9D23025-MS1) Prepared: 04/23/2019 00:00 Analyzed: 04/23/2019 11:37 Source: ACO2840-02REI Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 24 2.0 ug/L 25.0 1.2 U 97 80-133 Toluene-d8 5.0 u9/L 5.00 101 75-125 Matrix Spike Dup (9D23025-MSD1) Prepared: 04/23/2019 00:00 Analyzed: 04/23/2019 12:11 Source: ACO2840-02RE1 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 1.2 U 112 80-133 14 19 Toluene-& 5.8 u9/L 5.00 115 75-125 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 27 Of 32 (� �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 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 28 of 32 IM C40 IA O a ' -2 C 10 O E N m Z3 O E N .3 c w./ Q�. Z 9 3 � N 0 m — Ar � U O m M � U " O c N a U n a ccv1 U (� C 2 v � w m . Ly Ol z 6H x x X � a C 9S'gd'J:D'P:D'eg'sV'6y x x x <o �k W al WIS 009Z9' 6 xipueddy i709Z9 X X X < x O v a= tb L D ayN _j U Z > a o O W LL z In L) 7 � � o N O a) 3 v `w C 0 I V J vVJ a ✓� F'• U V m N w L W 8 �� m -EC) O N LL G O O m _ Q U OEL m V A. d Q_ Ir m fn �� m LL � N 9 uc f ❑ i 1 WHO? O) 4 ry N 8 .-. CN — U cn _ a, 2 ` n N U r _ m N m N ¢ i T In ai m C- C; C'') CY) C'7 U) E CJ O G1 CJ U � 4 cd d N U co E E m m t3J n (tea cu V 8 a C O a O U a m m m a a m a a u a� E E E a m m n n ❑ l 0110 ar Z v cc ■` YY C �' t C y N C C a 4 � Lr J E j p .may E � Q cc T GO o. 6 _ m m m a h c E N Page 29 of 3, Sample Preservation Verification ENCO Cary Work Order. CCO5273 Project: White Street LF-Phase I Client: Golder Associates, Inc. (GO007) Project#: 1668421.105 Logged In: 15-Apr-19 15:18 Logged By: Rachel Ann YInii Preservation Check Performed By: Date/Time: C4 U J CC05273-01 Cant Type Pres (pH) Requirement pH Checked 1 In Control Date/TimeYp pH Adjusted Adjusted Reagent Used/Comments A 250mLP+HNO3 <2 Y N / NA I Y /(N) NA CCO5273-02 Cont Yp Type Pres (pH) Requirement pH Checked 1 In Control Date/Time pH Adjusted Adjusted Reagent Used/Comments A 250ml-P+HNO3 <2 Y! N 1 NA Y /'N J NA CCO5273-03 Cont T pe y Pres (pH) Requirement pH Checked 1 I In Control DatelTime pH Adjusted Adjusted Reagent Used/Comments A 250mLP+HNO3 <2 Y D N/ NA Y IN' NA CCO5273-05 Cont Type Pres (pH) Requirement pH Checked / In Control pH Adjusted Date/Time I Adjusted Reagent Used/Comments A 250mLP+HNO3 [F] <2 Y / N 1 NA I Y `I N / NA Reagent Name ID 1 2 pH Strip I D: PH Strips C8l0741 Caelmnt%Prin..... ,-_. _,. _s vamiwm,,€ecK.rpt Rea ent Name ID 3 4 Rea ent Name ID 5 6 Page 30 of 32 r 3 W Q 3 v �o a tu 0rn 1 mCL d m � cri o 0 C a U � Q C O O U E o C N `m tyE O � N Q y = rG m � m � Ip Q N 4 U m _ co m n O4Dm a: c � U N m ` O LJ i _X�L'Ju a N m U E r E E L ❑ � L5 ❑ fl. m V � O U Em ov � !E ti CC C a. r y O c oe a y G c c V ac 2 � aRi y w +� 2 cr, 4 00 m _ m m z N m � ❑ JJ o Il caa ai EL JE- U Q U 101•1 E Us TTT= w can ' Page 31 of 32 Sample Preservation Verification ENCO Cary Work Order: CC06162 Project: White Street LF-Phase I Client: Golder Associates, Inc. (G0007) Project#: 1668421.105 Logged In: 17-Apr-19 19:03 Logged By: Rachel Ann onisk '] Preservation Check Performed By: V V Date/Time: hi h� CC46162-01 Cont Type Prey (pH) pH Checked ! Requirement Control pH Adjusted Daie me Adjusted Reagent Used/Comments A 250mLP+HNO3 <2 Y N I NA YIN NA CC06162-02 Cont Type Pres (pH) Requirement PR Checked I In ' ontrol Date/Time PH Adjusted Adjusted R eagent Used/Comments A 25omLP+HNO3 [F] 2 Y 1 N 1 NA Y I NCI NA Reagent Name ID 1 2 pH Strip ID: PH Strips CBJ0741 Rea ent Name ID 3 4 Rea ent Name ID 5 6 C:lelmnt\Printlwko_PreservationCheck. rpt Page 32 of 32 1 GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW G O L D E R Page 1 of 3 Project Name: White Street Landfill - Phase I Groundwater Project Reference Number: 1668421.103 Sampling Event Date: April 8-15, 2018 Review Date: May 2, 2019 Initials: AM Report #. CC05273, CC06162 Signature: Date: 5' -i- f5 QA/QC Sign Off: Date: 6--2 / 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 VOAs and RCRA Metals 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. GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 2 of 3 2.0 SAMPLE HOLDING TIMES GOLDER AM 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 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. ➢ LCS/LCSD were analyzed in place of MS/MSD in the 8260C SIM ID analysis for 1,4-Dioxane. 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 GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & LABORATORY DATA REVIEW QUALITY CONTROL G O L D E R Page 3 of 3 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. ➢ Methylene chloride detected in trip blank at 0.50 J ug/L — add B flag to I-2 (0.78 J ug/L) 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. ➢ 1,4 Dioxane (5x) at 1-1 ➢ 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. 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. ➢ 1,4 Dioxane (NC 2L = 3 ug/L) • 1-1 @ 210 ug/L • 1-2 @ 33 ug/L • 1-3 @ 46 ug/L • 1-4 @ 55 ug/L ➢ Benzene (NC 2L = 1 ug/L) • 1-1 @ 5.6 ug/L ➢ Barium (NC 2L= 700 ug/L) • 1-1 @ 724 ug/L 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). Other report issues/Communications with laboratory/etc.: p ENCO Laboratories j g Accurate. Timely. Respousive. luuavative. 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 Z4 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 Flag Units DF MDL I'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 9D11024 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 6260D 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 Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes 5.2 1 5.00 104 % 75-125 9D17035 EPA 6260D 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 Q Units Level Result %REC Limits RPD Limit Notes D/bromot7uoromethane 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-MSD1) 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-MSDI) 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 15:53 111 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-MS3) 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-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 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 u9/L 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 u9/L 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 n u 0 3 0 D3 a � � x T `-'• °1 w m n m 0 a c 3 m J v 3 m g m a m a m a //'�� N l• l QO 3 I W O �N J O 3 O 393 v t r O 00 3J JJ 31 N N N m • a) co ci J o. 0 J n O J m m w .a CJ CD O m O w O m a m 0 a CD CD w 0- CD (n Cl) m C) Dn C� m a� m , Vly ? � � v ~. CD cr � to N O W y) d O N n Z 3 w 8 n N 4 v O r J vt 0 O) T N r A. w 'w_ (f) W 31 0 _0 .p N ° 0 O O 004' �Z �z , r Sm o oa J co a A 0 0 S 3 a �� aIDN o pN V .+ I� VI ID w 0 K jC WO WW �'p c ^^ pOJ r N r Y/ O 01 0O m X 8260D Appendix 1,8260D Extended,8260D SIM ID 8260D Appendix 1,8260D SIM IC 9 X Ag,As,Ba,Be,Cd,Co,Cr,Cu,NI,Pb,Sb,Se, 2 Ss,T1,V 7r Ag,As,Sa,Be,Cd,Co,Cr,Cu,N1,Pb, Sb, Se, x m r 1 0 p (D fD CD 7) 3m �c O c CD v y y m : � 0 3 � L 1 CD CD m w N a � m y W a � CD —4a n o -P Page 21 of 24 Sample Preservation Verification ENCO Cary Work Order: CCO5274 Client: Golder Associates, Inc. (G0007) Lo ed In 10-Apr-19 14:11 Project: White Street LF-Phase 1,11 GW/SW Project #: 1668421.105 Logged By: John C King gg 4-(o, (q logo Preservation Check Performed By: r� Date/Time: CCO5274-01 Cont Type Pres (pH) Requirement pH Checked / In Control pH Adjusted Date/Time Adjusted Reagent Used/Comments A 250mLP+HNO3 <2 )� / N / NA Y /'N,;'/ NA Rea ent Name ID 1 2 1 pH Strip ID: Cy 16 —?q- I Rea ent Name ID 3 4 Rea ent Name ID 5 6 Page 22 of 24 C:\ELMNT\Print\wko_PreservationC heck. rpt ge ' 0 Q 0 W c. Q N 7 U ti 0 z a c.� M LU Q Ma Gi 0 LLI J z 0 i LL! U) z O U J H z w 2 z 0M Fig 7 z LU U c m W WI o ro I 01Cbo E ~@ � a O m `m C� Lu p�j n � U C m Y O E E ,—� m Eh. E 0 z'0 O O O ❑ ¢ � U m n a C+jl 7�I a E $ �-a • U O E m � Z � rn c Q .i z = o L 0 p Ol I C.,a .�t1_MnW s ~ Q1 w? S Q 09Zd i "IC3 �■ Yl 1 P V ro o c � E � E _ � V � 3 a i m A O CL ZZ �v y � _o ¢ `^ V ■ m t _ C m � No lA ^� E o Ui"� m m m m w 7 QO C 7FP U z E L a n C 0 a rAmp o .-.. y o E m y U 0 Z � Sz� 3 0 M m EL c a �v ccFL C1 N ¢ a m c 5� rn n � ID n C? b M m E E m 4F Page 23 of 24 Sample Preservation Verification ENCO Cary =:a Work Order: CC06033 Project: White Street LF-Phase 1,11 GW/SW Client: Golder Associates, Inc. (00007) Project#: 1668421.105 Logged In: 12-Apr-19 13:38 Logged By: Rachel Ann Yonish Preservation Check Performed By: 7P Date/Time: Lil 12 /1 CC06033-01 Cont Type Pres (pH) Requirement pH Checked / In Control .. pH Adjusted Date/Time Adjusted Reagent Used/Comments A 250mLP+HNO3 <2 Y N/ NA Y/ N I NA Reagent Name ID 1 2 pH Strip I D: PH Strips C8J0741 C:Ielmnt\Prii....... __, ..,.0 1VOLIVt1VIICUMApt Reagent Name ID 3 4 Rea ent Name ID 5 6 Page 24 of 24 GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Pagel of 3 ' GOLDEP Project Name: White Street Landfill — Phase I,II GW/SW (MW-13, SW-5) Project Reference Number: 1668421.105 Sampling Event Date: April 9 - 11, 2019 Review Date: May 2, 2019 Report #. CC05274, CCO6033 Signature: QA/QC Sign Off: Date:�'�ci Date: _S- Z -/ S 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 (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 GOLDER 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). ➢ 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 601OD MS, MSD and Post Spike samples. The QC batch was approved based on acceptable LCS recovery of this element. ➢ The 8260D SIM 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 GOLDER LABORATORY DATA REVIEW Page 3 of 3 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 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 (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 ug/L) • SW-5 @ 4.18 ug/L (J) ➢ Vanadium (NC (aDL lMAC = 0.3 ug/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.: p ENCO Laboratories j g Accurate. Timely. Respousive. luuavative. 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 Z8 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 6020E 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 Flag Units DF MDL I'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 6260D 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 Flag Units DF MDL I'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 Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes 5.7 1 5.00 113 % 75-125 9D22021 EPA 6260D 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 Flag Units DF MDL I'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 6260D 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 Flag Units DF MDL POL 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 02:48 MRK 1,1,1-Trichloroethane [71-55-6]^ 0.12 U ug/L 1 0.12 1.0 9D19024 EPA 8260D 04/20/19 02:48 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 02:48 MRK 1,1,2-Trichloroethane [79-00-5]^ 0.14 U ug/L 1 0.14 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK 1,1-Dichloroethane [75-34-3]^ 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]^ 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]^ 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]^ 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]^ 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]^ 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]^ 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]^ 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]^ 0.19 U ug/L 1 0.19 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK 2-Butanone [78-93-3]^ 1.3 U ug/L 1 1.3 5.0 9D19024 EPA 8260D 04/20/19 02:48 MRK 2-Hexanone [591-78-6]^ 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]^ 1.1 U ug/L 1 1.1 5.0 9D19024 EPA 8260D 04/20/19 02:48 MRK Acetone [67-64-1]^ 10 U ug/L 1 10 20 9D19024 EPA 8260D 04/20/19 02:48 MRK Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 9D19024 EPA 8260D 04/20/19 02:48 MRK Benzene[71-43-2]^ 0.15 U ug/L 1 0.15 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK Bromochloromethane [74-97-5]^ 0.48 U ug/L 1 0.48 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK Carbon disulfide [75-15-0]^ 1.5 U ug/L 1 1.5 5.0 9D19024 EPA 8260D 04/20/19 02:48 MRK Carbon tetrachloride [56-23-5]^ 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK Chlorobenzene [108-90-7]^ 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK Chloroethane [75-00-3]^ 0.23 U ug/L 1 0.23 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK Chloromethane [74-87-3]^ 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]^ 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]^ 0.20 U ug/L 1 0.20 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK Dibromochloromethane [124-48-1]^ 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK Dibromomethane [74-95-3]^ 0.27 U ug/L 1 0.27 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK Ethylbenzene [100-41-4]^ 0.13 U ug/L 1 0.13 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 9D19024 EPA 8260D 04/20/19 02:48 MRK Methylene chloride [75-09-2]^ 0.73 J ug/L 1 0.23 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK Styrene [100-42-5]^ 0.11 U ug/L 1 0.11 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK Tetrachloroethene [127-18-4]^ 0.17 U ug/L 1 0.17 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK Toluene [108-88-3]^ 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]^ 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]^ 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]^ 0.70 U ug/L 1 0.70 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK Vinyl acetate [108-05-4]^ 0.95 U ug/L 1 0.95 5.0 9D19024 EPA 8260D 04/20/19 02:48 MRK Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 9D19024 EPA 8260D 04/20/19 02:48 MRK Xylenes (Total) [1330-20-7]^ 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 04/19/1919:10 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 Flag Units DF MDL I'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 Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes 5.6 1 5.00 112 % 75-125 9D22021 EPA 6260D 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 (91322016-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 2S (� �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 20 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 Flau 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 Q 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-& 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 ug/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 Q 4 H Q v z 3 3 W E 0 a cc O m J Z O a Ix W N z O U J H z W z O z W c a i m + C N w L Q'7 cc Q Lr`/'i ) E O f U C ice km QN7 Y v a � o a J m A a N m � 0 o U a`i H m N 1Z1 � V Q z ` Q V m a y m m 2 S N n O c m a = {t fVJ � � � Z u o c � ov o k mm L+Z'A:LL'BS X X X f° o a! W!S (109Z8 ! x.PueddV (]Q9Z9 x X X X V C �-- m E� Ai Q c 4 � aro Vd o Uj a� > oc a m b o m m m m° A04 �� 2. Notu /:� 7 m LL o E Z� Zi C o+� O O D o M ` v0 ,Q f V Q .6T G o m } } m r N at p❑ J�I ��i p F- 1i� ��/ V Li LT U 12 a a a a Al fA U o 4 m E FE —51 ran rj N E e a o CN GCS co O ° CO) v r� ,-. C o m c c Q L 4a � CN.?cq O 0 m o `f N 'f N -f N_ h (N m v m O -0 N v m c m o o b v m 7 e .—. zw4 © T e— .Ar a cn gepU 4 H m E U) E �' Page 25 of 28 _ U U Sample Preservation Verification ENCO Cary Work Order: CC05275 Client: Golder Associates, Inc. (GO007) Logged In: 15-Apr-19 15:12 Preservation Check Performed By: CC05275-01 Project: Project #: Logged By White Street LF-Phase 1,11,111 SW 1668421.105 Rachel Ann Y)o ish Date/Time; Cant Type Pres (pH) Requirement pH Checked / �Aq Control pH Adjusted DalelTime Adiusted Reagent Used/Comments A 250mLP+HNO3 1 2 V Y 1 N/ NA Y N l NA CCO5275-02 Cont yP Type Pres (pH) Requirement pH Checked/1 _Irl.Control DatelTime pH Adjusted Adjusted Reagent UsedlCom�r�ents A 250mLP+HNO3 <2 ;� I N 1 NA I Y .N,, 1 NA CC05275-03 Cont Type Pres (pH) Requirement pH Checked 1 _ Control pH Adjusted Date/Time Adjusted Reagent Used/Comments A 250mLP+HNO3 <2 YJI N I NA Y/ N NA Rea ent Name ID 1 2 pH Strip ID: PH Strips C8J0741 Rea ent Name ID 3 4 Rea ent Name ID 5 6 C:lelmnt\Prinnwna_rreservation Check. rpt Page 26 of 28 Fes* 4 OA 0 V 3 a cc 0 U cc a 0 cn D U is 0 Z a x U (n W FE 0 a a co o a J Z 0 Q cc LU U) z 0 U J z Cw C Z M0 i4 Z W d O yN m r C C V] y 71 H W j y C CL X O ( C m n � ' '0 m c E ro E E m C � o M co J m Q C y _ Uc a � 'O m o C tlf U � m y w O w � � m z � � oro C U in a � m m N = .� N w � U m iL a ¢ w CL C Z Ef y E N3i Z N t m E LE Ew 5 ry IV ✓+ D � m ti QI � N m m m In m M C7 N VI � O � .� 0 E N O r! 0. O a a Q' coin m a N w d WS y y o 1 a y n .J m` k c rr o l 1 {"} ��'�K o m U' � t)o _ c Z y [') Page 27 of 28 r vvJ' Y! 9 a Lb— V' Sample Preservation Verification ENCO Cary Work Order: CC06163 Project: White Street LF-Phase 1,11,111 SW Client: Golder Associates, Inc. (G0007) Project #: 1668421.105 Logged In: 17-Apr-19 19:09 Dw Logged By: Rachel Ann Y�iishf�� `��Preservation Check Performed By: Date/Time: 4 614j ( 1 CC06163-01 Cont Type Pres (pH) Requirement pH Checked / Control pH Adjusted Date/.Tme Adiusted Reagent Used/Comments A 250mLP+HNO3 2 Y/ N/ NA I Y N NA Reagent Name ID 1 2 pH Strip ID: pH Strips C810741 Rea ent Name ID 3 4 Rea ent Name ID 5 6 Page C:IelmntlPrirlttiWKO_rie5ervduOnunecK,rpt e 28 of 28 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 #: CC05275,CCO6163 Signature. QA/QC Sign Off: .,410 G 0 L D E P Date: S -2-lf Date: 6--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 LABORATORY DATA REVIEW Page 2 of 3 )0 G 0 L D E R 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. 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 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 LABORATORY DATA REVIEW Page 3 of 3 ➢ Methylene chloride detected in trip blank at 0.73 ug/L (J) ' GOLDER 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 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 = 2.7 ug/L) • SWA @ 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 ug/L) • SWA @ 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.: (�, GOLDER golder.com