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4103_Guilford_WhiteStreet_PhaseI_MSWLF_GW_FID1285590_20190227
i pENR USE ONLY [:]Paper Report [:]Electronic Data - Email CD (data loaded: Yes / No) Doc/Event #: NC DENR I I Environmental Monitoring Division of Waste Management - Solid Waste ReDortina 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 II, 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 October 16-19, 2018 Environmental Status: (Check all that apply) Initial/Background Monitoring Q 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. 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 Title 2-z2— Signature r 'r Date Golder Associates NC, Inc., 5B Oak Branch Drive, Greensboro, NC 27407 Facility Representative Address C-2862 NC PE Firm License Number (if applicable effective May 1, 2009) (Area Code) Telephone Number Affix NC Licensed/ Professional Geologist Seal pv, 11 ZAJO 22z/� \, Revised 6/2009 J GOLDER REPORT Second Semi -Annual 2018 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 1668421.103 February 22, 2019 February 22, 2019 Distribution List 1668421.103 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 February 22, 2019 1668421.103 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 October 16 - 19, 2018, semi-annual compliance monitoring event for Phase I at the White Street Landfill. No Resource Conservation and Recovery Act (RCRA) metals were detected above their respective Practical Quantitation Limits (PQLs) and groundwater standards during the October 2018 event. During this event, benzene and 1,4-dichlorobenzene were detected above their respective PQLs and NC 2L Standards in the sample from downgradient well 1-1 as they have been during 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 Standard for the first time; however, this is the first time this analyte has been sampled for and this parameter is not required by regulation or permit. No NC Appendix I constituents were reported above their respective PQLs and applicable surface water standards during the October 2018 event. Copper was reported at estimated concentrations below the PQL, but above the Acute Standard in the samples from upstream monitoring point SW-2 and at estimated concentrations below the PQL but above the Chronic Standard in the samples from upstream monitoring points SW-1 and SW-3 and downstream monitoring point SW-5. Because the concentrations are below their respective PQLs and based on similar concentrations at upstream and downstream samples, the exceedances do not appear to be related to landfill activities from the facility and no further action is warranted. 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 April 2019. GOLDER February 22, 2019 1668421.103 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 October 2018 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 �' GOLDER 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 February 22, 2019 1668421.103 Figure 1 Groundwater Surface Contour Map, October 16, 2018 Figure 2 Surface Water Location Map APPENDICES Appendix A Groundwater and Surface Water Sampling Logs Appendix B October 2018 Groundwater Certificates -of -Analysis, Chain -of -Custody Forms and Laboratory Data Reviews 4 GOLDER iv February 22, 2019 1668421.103 1.0 INTRODUCTION This report summarizes the monitoring results from the October 16 - 19, 2018, 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 II 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 February 22, 2019 1668421.103 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 October 16, 2018, 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 October 2018 groundwater surface contour map, the hydraulic gradient in the shallow aquifer underlying the site, as measured along the conceptual flow paths shown on the contour map, was calculated to be approximately 0.018 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 February 22, 2019 1668421.103 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 239 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 October 2018 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 Ieachate migration (i.e., Ieachate seeps), unexplained changes in soil characteristics, and any other change to the environment due to the waste management unit. During the October 2018 compliance monitoring event, no physical indicators of a potential release were observed in the vicinity of the waste management areas by the sampling personnel. It should be noted that during periods of heavy precipitation from Hurricane Florence and Hurricane Michael in September and October 2018 respectively, City of Greensboro employees observed groundwater monitoring wells 1-2 and 1-4 to be submerged due to localized flooding. Well 1-4 is located in a low-lying area in relatively close proximity to North Buffalo Creek, while 1-2 is located at the edge of a drainage feature. There are no visible signs of damage following the storm events. 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 (1-1, 1-2, 1-3, 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 October 2018 Monitoring Event Personnel from Golder visited the facility from October 16 - 19, 2018, to purge and sample monitoring wells and to sample surface water monitoring points GOLDER February 22, 2019 1668421.103 Monitoring wells were purged and sampled using the dedicated pumps at the facility following low -flow micropurge procedures. Measurements of temperature, pH, specific conductivity, turbidity, dissolved oxygen, and oxidation reduction potential were recorded on approximately 5-minute intervals, depending on the purge rate. In general, the purge rate for each well was matched to the yield of the monitoring well, as determined by continuously monitoring the depth to the water, up to a maximum purge rate of 200 milliliters per minute. Purging was continued until stabilization was indicated by the water quality parameters. Prior to sampling, the laboratory -supplied sample containers were prepared. Each sample container was labeled with the sample identification number, sampling personnel, date and time of sample collection, project name and number, and requested chemical analyses. The required groundwater samples were collected directly from the dedicated bladder pump's discharge lines 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. Laboratory Analysis Program The October 2018 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 February 22, 2019 1668421.103 4.1 North Carolina Groundwater and Surface Water Quality Standard Comparisons As presented in Table 4, no Resource Conservation and Recovery Act (RCRA) metals were detected above their respective Practical Quantitation Limits (PQLs) and groundwater standards during the October 2018 event. During this event, benzene and 1,4-dichlorobenzene were detected above their respective PQLs and NC 2L Standards in the sample from downgradient well 1-1 as they have been during 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 Standard for the first time; however, this is the first time this analyte has been sampled for and this parameter is not required by regulation or permit. As shown in Table 6, no NC Appendix I constituents were reported above their respective PQLs and applicable surface water standards during the October 2018 event. Copper was reported at estimated concentrations below the PQL, but above the Acute Standard in the samples from upstream monitoring point SW-2 and at estimated concentrations below the PQL but above the Chronic Standard in the samples from upstream monitoring points SW-1 and SW-3 and downstream monitoring point SW-5. Because the concentrations are below their respective PQLs and based on similar concentrations at upstream and downstream samples, the exceedances do not appear to be related to landfill activities from the facility and no further action is warranted. 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 April 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 February 22, 2019 Signature Page Golder Associates NC, Inc. David "Dusty" Y. Reedy II, PG Senior Hydrogeologist c Rachel P. Kirkman, PG Associate and Senior Consultant Engineering Lic. No. C-2862/Geology Lic. No. C-399 1668421.103 Golder Associates NC, Inc. is a licensed user of the Golder trademark, and an associated operating entity. Golder and the G logo are trademarks of Golder Associates Corporation. gAprojects\city of greensboro\1668421 - greensboro\phase 104 - 2nd sa wqm 2018/200 deliverables\252 final issued\phase i\1668421.103-001-r-rev0-phase_i.docx 4 GOLDER 6 Tables February 2019 TABLE 1 1668421.103 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 MEAN 730.76 8.85 724.60 5.65 718.03 13.13 718.76 3.08 721.44 19.82 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 7. Well TOC survey conducted 2013-2014 by S&ME, Inc. for more accurate elevations. GOLDER 1of1 February 2019 TABLE 2 Summary of Estimated Horizontal Flow Velocities White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina 1668421.103 October 2018 Gradient Gradient Gradient Horizontal Hydraulic Flow Segment Effective Porosity Velocity Calculation Direction Segment Length Elevations Gradient (ne) Conductivity (VgW, feet/year) Segment (feet) (i, feet) (K, cm/sec) fee t i Northwest 1650 -------- 690-------- 0.0182 0.02 2.61 E-04 245 i 2 North -Northwest 1748 -------- 690-------- 0.0172 0.02 2.61 E-04 232 Average i Average VFW 0.0177 239 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 ,,> GOLDER 1of1 February 2019 TABLE 3 Summary of Well Construction Information White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina 1668421.103 Top -of - Well Well Monitoring Well Casing Screened Interval Geology of Screened Well Identification Northing Easting Date of Construction Elevation Depth Diameter (ft bgs) Interval Status (ft AMSL) (feet) (inches) 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 07114/89 694.94 15 2 5 15 Sandy Silt Active MW-13 858763.9106 1783188.5206 07/14/892 741.24 34 2 19 34 Sandy Silt Active Notes: 1. It AMSL= feet above mean sea level 2. It 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. GOLDER 10f1 February 2019 TABLE 4 1668421.103 Summary of Groundwater Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina Detected Monitoring Reporting Sample Method Practical SWS Upgradient Well Downgradient Wells Constituent/Parameter Units Date Detection Quantitation Reporting Blanks MW-13 1-1 1-2 1-3 1-4 Limit Limit Limit 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 J ND 3.3 J 4.7 J ND ug/L 10/07/09 2.8 10 ND ND ND ND 3.38 J 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 J 4.72 J 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 J ND ND ND ND ug/L 10/24/12 2.8 10 3.75 J 4.25 J 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 J 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 J 9.93 J 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 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 J 590 426 146 585 ND ug/L 04/22/14 1.0 100 98.7 J 732 483 128 585 ND ug/L 10/06/14 1.0 100 88.3 J 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 J 484 576 151 376 ND ug/L 04/26/16 1.0 100 91.3 J 672 513 135 699 ND ug/L 09/28/16 1.0 100 85.1 J 623 532 135 628 ND ug/L 04/27/17 1.0 100 96.6 J 693 291 131 554 ND ug/L 10/17/17 1.0 100 94.1 J 665 465 148 669 ND ug/L 04/16/18 1.0 -- 100 82.7 J 705 512 131 751 ND ug/L 10/18/18 1.1 10.0 94.5 660 499 136 546 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 J 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 J 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 GOLDER 1of8 February 2019 TABLE 4 1668421.103 Summary of Groundwater Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina Detected Monitoring Reporting Sample Method Practical SWS Upgradient Well Downgradient Wells Detection Quantitation Reporting Blanks Constituent/Parameter Units Date Limit Limit Limit 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 J 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 J 6.17 J 4.75 J 37.4 ND ug/L 10/11/10 1 10 ND ND 11.2 3.40 J 71.4 ND ug/L 05/10/11 1 10 ND 5.13 J 73.8 15.1 109 ND ug/L 10/06/11 1 10 1.27 J 2.33 J 12.8 9.49 J 36.4 ND ug/L 04/16/12 1 10 ND 5.39 J 19.6 14.1 64.0 ND ug/L 10/24/12 1 10 ND 2.34 J 42.2 8.00 J 51.6 ND ug/L 04/24/13 1.4 10 1.74 J ND 21.8 2.79 J 39.3 ND ug/L 09/10/13 1.4 10 ND ND 2.06 J 5.05 J 6.3 1 ND ug/L 04/22/14 1.4 10 ND 2.52 J 8.14 J 5.49 J 12.2 ND ug/L 10/06/14 1.4 10 ND 2.59 J 12.8 6.34 J 5.58 1 ND ug/L 04/07/15 1.4 10 ND 3.97 J 20.0 9.33 J 9.31 1 ND ug/L 10/07/15 1.4 10 ND 2.66 J 29.9 7.78 J 4.61 1 ND ug/L 04/26/16 1.4 10 ND ND 3.57 J 1.56 J 2.83 1 ND ug/L 09/28/16 1.4 10 ND ND 2.98 J ND ND ND ug/L 04/27/17 1.4 10 ND ND 7.43 J 1.52 J 2.45 1 ND ug/L 10/17/17 1.4 10 ND 3.94 J 5.66 J 4.38 J 2.36 1 ND ug/L 04/16/18 1.4 -- 10 ND 1.76 J 12.6 3.90 J 2.70 1 ND u /L 10/18/18 1.4 10.0 -- ND 2.48 J 5.02 J 5.34 J 2.87 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 J 2.0 2.9 ND ug/L 09/25/07 -- -- 2.0 ND 3.6 J ND ND ND ug/L 05/02/08 2.0 10 ND ND 5.6 J 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 J 12.4 3.7 1 19 ND ug/L 10/07/09 1.9 10 ND ND 3.31 J 2.44 1 14 ND ug/L 04/28/10 1.9 10 ND ND ND ND 7.98 J ND ug/L 10/11/10 1.9 10 ND ND 2.01 J 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 J 1.9 15.8 ND ug/L 10/24/12 1.9 10 ND 2.3 J 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 J 4.62 J 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 J 4.3 J 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 J 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 u /L 10/18/18 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 J 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 J 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 J 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 GOLDER 2of8 February 2019 TABLE 4 1668421.103 Summary of Groundwater Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina Detected Monitoring Reporting Sample Method Practical SWS Upgradient Well Downgradient Wells Detection Quantitation Reporting Blanks Constituent/Parameter Units Date Limit Limit Limit 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 u /L 10/18/18 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 1 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 1 4.54 J 5.39 J ND ug/L 10/24/12 1.9 10 ND ND 2.94 1 ND 3.8 J ND ug/L 04/24/13 1.9 10 ND 4.22 J 2.96 1 4.42 J ND ND ug/L 09/10/13 1.9 10 ND ND 2.16 1 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 u /L 10/18/18 1.9 10.0 ND ND ND ND ND ND 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 u /L 10/18/18 10 20 ND ND ND ND ND ND GOLDER 3of8 February 2019 TABLE 4 1668421.103 Summary of Groundwater Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina Method Practical SWSUpgradient Detected Monitoring Reporting Sample Well Downgradient Wells Detection Quantitation Reporting Blanks Constituent/Parameter Units Date Limit Limit Limit MW-13 1-1 1-2 1-3 1-4 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 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 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 ,> GOLDEP 4of8 February 2019 TABLE 4 1668421.103 Summary of Groundwater Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina Detected Monitoring Reporting Sample Method Practical SWSUpgradient Well Downgradient Wells Detection Quantitation Reporting Blanks Constituent/Parameter Units Date Limit Limit Limit MW-13 1-1 1-2 1-3 1-4 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 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 1,2-Dibromo-3-Chloropropane ug/L 03/01/00 -- -- 25 ND ND ND ND ND NC 2L = 0.04 ug/L ug/L 09/01/00 25 ND ND ND ND ND EPA MCL = 0.2 ug/L ug/L 03/01/01 25 ND ND ND ND ND ug/L 09/01/01 25 ND ND ND ND ND ug/L 03/01/02 25 ND ND ND ND ND ug/L 09/01/02 25 ND ND ND ND ND ug/L 04/01/03 25 ND ND ND ND ND ug/L 10/01/03 25 ND ND ND ND ND ug/L 03/01/04 25 ND ND ND ND ND ug/L 09/01/04 25 ND ND ND ND ND ug/L 05/01/05 25 ND ND ND ND ND ug/L 10/01/05 25 ND ND ND ND ND ug/L 04/01/06 25 ND ND ND ND ND ug/L 10/01/06 25 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 0.48 13 ND ND ND ND ND ug/L 12/05/08 0.48 13 ND ND ND ND ND ug/L 04/16/09 0.48 13 ND ND ND ND ug/L 10/07/09 0.48 13 ND ND ND ND ND ug/L 04/28/10 0.48 13 ND ND ND ND ND ND ug/L 10/11/10 0.48 13 ND ND ND ND ND ND ug/L 05/10/11 0.48 13 ND ND ND ND ND ND ug/L 10/06/11 0.48 13 ND 0.71 J ND ND ND ND ug/L 04/16/12 0.48 13 ND ND ND ND ND ND ug/L 10/24/12 0.48 13 ND ND ND ND ND ND ug/L 04/24/13 0.72 13 ND ND ND ND ND ND ug/L 09/10/13 0.48 13 ND ND ND ND ND ND ug/L 04/22/14 0.48 13 ND ND ND ND ND ND ug/L 10/06/14 0.48 13 ND ND ND ND ND ug/L 04/07/15 0.48 13 ND ND ND ND ND ug/L 10/07/15 0.48 13 ND ND ND ND ND ug/L 04/26/16 0.48 13 ND ND ND ND ND ug/L 09/28/16 0.48 13 ND ND ND ND ND ug/L 04/27/17 0.48 13 ND ND ND ND ND ND ug/L 10/17/17 0.48 13 ND ND ND ND ND ND ug/L 04/16/18 0.48 -- 13 ND ND ND ND ND ND ug/L 10/18/18 0.48 1.0 ND ND ND ND ND ND GOLDER 5of8 February 2019 TABLE 4 1668421.103 Summary of Groundwater Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina Detected Monitoring Reporting Sample Method Practical SWSUpgradient Well Downgradient Wells Detection Quantitation Reporting Blanks Constituent/Parameter Units Date Limit Limit Limit 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 1 0.84 1 0.60 1 ND ug/L 09/25/07 -- -- ND ND 1.2 1 0.79 1 0.48 1 ND ug/L 05/02/08 0.27 5 ND ND 1 1 0.49 1 ND ND ug/L 12/05/08 0.27 5 ND 0.42 ND 0.75 1 ND ND ug/L 04/16/09 0.27 5 ND 1.1 1 0.59 1 0.41 1 ND ug/L 10/07/09 0.27 5 ND ND 1.5 1 0.85 1 ND ND ug/L 04/28/10 0.052 5 ND ND 1.4 1 0.73 1 ND ND ug/L 10/11/10 0.27 5 ND ND 1.3 1 0.88 1 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 1 0.79 1 ND ND ug/L 04/16/12 0.19 5 ND ND 0.78 1 0.45 1 ND ND ug/L 10/24/12 0.19 5 ND ND 0.56 1 0.81 1 ND ND ug/L 04/24/13 0.39 5 ND ND ND 0.59 1 ND ND ug/L 09/10/13 0.19 5 ND ND 0.85 1 0.67 1 0.41 1 ND ug/L 04/22/14 0.19 5 ND ND 0.92 1 0.55 1 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 1 ND ND ug/L 10/07/15 0.19 5 ND ND 1.4 1 0.84 1 ND ND ug/L 04/26/16 0.19 5 ND ND 1.1 1 0.44 1 ND ND ug/L 09/28/16 0.19 5 ND ND 1.5 1 0.83 1 ND ND ug/L 04/27/17 0.19 5 ND ND 0.94 1 0.56 1 ND ND ug/L 10/17/17 0.19 5 ND ND 1.5 1 0.82 1 ND ND ug/L 04/16/18 0.19 -- 5 ND ND 1.5 1 ND ND ND u /L 10/18/18 0.19 1.0 -- ND ND 1.7 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 1 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 1 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 u /L 10/18/18 0.19 1.0 ND 6.4 ND 2.2 4.4 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 1 ND 1.6 1 ND ND ug/L 09/25/07 -- -- ND 1.7 1 ND 2.9 1 ND ND ug/L 05/02/08 0.33 5 ND 1.3 1 ND 2.0 1 ND ND ug/L 12/05/08 0.33 5 ND 0.54 ND 3.2 1 ND ND ug/L 04/16/09 0.33 5 1.0 1 ND 1.4 1 ND ND ug/L 10/07/09 0.33 5 ND 1.4 1 ND 2.6 1 ND ND ug/L 04/28/10 0.05 5 ND 1.2 1 ND 2.0 1 ND ND ug/L 10/11/10 0.33 5 ND 1.4 1 ND 2.6 1 ND ND ug/L 05/10/11 0.08 5 ND 0.97 1 0.08 2.0 1 ND ND ug/L 10/06/11 0.08 5 ND 1.2 1 ND 2.3 1 ND ND ug/L 04/16/12 0.13 5 ND 1.0 1 ND 1.5 1 ND ND ug/L 10/24/12 0.13 5 ND 0.72 1 ND 2.3 1 ND ND ug/L 04/24/13 0.28 5 ND 0.71 1 ND 1.9 1 ND ND ug/L 09/10/13 0.13 5 ND 0.67 1 0.13 2.2 1 ND ND ug/L 04/22/14 0.13 5 ND 0.56 1 ND 1.2 1 ND ND ug/L 10/06/14 0.13 5 ND 0.74 1 ND 1.5 ND ND ug/L 04/07/15 0.13 5 ND ND ND 1.5 1 ND ND ug/L 10/07/15 0.13 5 ND 1.0 1 ND 3.2 1 ND ND ug/L 04/26/16 0.13 5 ND 0.45 1 ND 2.0 1 ND ND ug/L 09/28/16 0.13 5 ND 0.86 1 ND 2.9 1 ND ND ug/L 04/27/17 0.13 5 ND 0.47 1 ND 1.6 1 ND ND ug/L 10/17/17 0.13 5 ND 0.52 1 ND 2.6 1 ND ND ug/L 04/16/18 0.13 -- 5 ND 0.50 1 ND 1.3 1 ND ND ug/L 10/18/18 0.13 1.0 -- ND 0.51 1 ND 1.8 ND ND GOLDER 6of8 February 2019 TABLE 4 1668421.103 Summary of Groundwater Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina Method Practical SWSUpgradient Detected Monitoring Reporting Sample Well Downgradient Wells Detection Quantitation Reporting Blanks Constituent/Parameter Units Date Limit Limit Limit MW-13 1-1 1-2 1-3 1-4 1,2-Dichloroethane 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 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 1 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 1 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 1 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 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 J 0.48 J 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 1 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 1 ND ND ug/L 10/17/17 0.15 5 ND 0.47 J ND 0.64 1 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 ,> GOLDEP 7of8 February 2019 TABLE 4 1668421.103 Summary of Groundwater Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina Method Practical SWSUpgradient Detected Monitoring Reporting Sample Well Downgradient Wells Detection Quantitation Reporting Blanks Constituent/Parameter Units Date Limit Limit Limit 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 2-Butanone ug/L 03/01/00 -- -- 100 ND ND ND ND ND NC 2L = 4000 ug/L ug/L 09/01/00 100 ND ND ND ND ND (No EPA MCL) ug/L 03/01/01 100 ND ND ND ND ND ug/L 09/01/01 100 ND ND ND ND ND ug/L 03/01/02 100 ND ND ND ND ND ug/L 09/01/02 100 ND ND ND ND ND ug/L 04/01/03 100 ND ND ND ND ND ug/L 10/01/03 100 ND ND ND ND ND ug/L 03/01/04 100 ND ND ND ND ND ug/L 09/01/04 100 ND ND ND ND ND ug/L 05/01/05 100 ND ND ND ND ND ug/L 10/01/05 100 ND ND ND ND ND ug/L 04/01/06 100 ND ND ND ND ND ug/L 10/01/06 100 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 0.44 100 ND ND ND ND ND ug/L 12/05/08 1 100 ND 0.63 J ND ND ND ug/L 04/16/09 1 100 ND ND ND ND ug/L 10/07/09 1 100 ND ND ND ND ND ug/L 04/28/10 1 100 ND ND ND ND ND ND ug/L 10/11/10 1 100 ND ND ND ND ND ND ug/L 05/10/11 1.3 100 ND ND ND ND ND ND ug/L 10/06/11 1.3 100 ND ND ND ND ND ND ug/L 04/16/12 1.3 100 ND ND ND ND ND ND ug/L 10/24/12 1.3 100 ND ND ND ND ND ND ug/L 04/24/13 1.5 100 ND ND ND ND ND ND ug/L 09/10/13 1.3 100 ND ND ND ND ND ND ug/L 04/22/14 1.3 100 ND ND ND ND ND ND ug/L 10/06/14 1.3 100 ND ND ND ND ND ug/L 04/07/15 1.3 100 ND ND ND ND ND ug/L 10/07/15 1.3 100 ND ND ND ND ND ug/L 04/26/16 1.3 100 ND ND ND ND ND ug/L 09/28/16 1.3 100 ND ND ND ND ND ug/L 04/27/17 1.3 100 ND ND ND ND ND ND ug/L 10/17/17 1.3 100 ND ND ND ND ND ND ug/L 04/16/18 1.3 -- 100 ND ND ND ND ND ND ug/L 10/18/18 1.3 5.0 -- ND ND ND ND ND ND Toluene ug/L 03/01/00 -- -- 5 ND ND ND ND ND ND NC 2L = 600 ug/L ug/L 09/01/00 5 ND ND ND ND ND ND EPA MCL = 1000 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 11 ND ND ND ug/L 05/01/05 5 ND ND ND ND ND ND ug/L 10/01/05 5 ND ND 8 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 1.2 ND ND ND ND ND ug/L 09/25/07 -- -- 0.15 ND ug/L 05/02/08 0.2 1 ND ND ND ND ND ND ug/L 12/05/08 0.27 1 ND 1.6 J ND ND ND ND ug/L 04/16/09 0.27 1 ND ND ND ND ND ug/L 10/07/09 0.27 1 ND ND 1.9 ND ND ND ug/L 04/28/10 0.053 1 ND ND ND ND ND ND ug/L 10/11/10 0.27 1 ND ND ND ND ND ND ug/L 05/10/11 0.85 1 ND ND ND ND ND ND ug/L 10/06/11 0.85 1 ND ND ND ND ND ND ug/L 04/16/12 0.14 1 ND ND ND ND ND ND ug/L 10/24/12 0.14 1 ND ND ND ND 0.73 1 ND ug/L 04/24/13 0.23 1 ND ND 4.1 ND ND ND ug/L 09/10/13 0.14 1 ND ND ND ND ND ND ug/L 04/22/14 0.14 1 ND ND ND ND ND ND ug/L 10/06/14 0.14 1 ND ND ND ND ND ND ug/L 04/07/15 0.14 1 ND ND ND ND ND ND ug/L 10/07/15 0.14 1 ND ND 0.5 J ND ND ND ug/L 04/26/16 0.14 1 ND ND ND ND ND ND ug/L 09/28/16 0.14 1 ND ND ND ND ND ND ug/L 04/27/17 0.14 1 ND ND ND ND ND ND ug/L 10/17/17 0.14 1 ND ND ND ND ND ND ug/L 04/16/18 0.14 -- 1 ND ND ND ND ND ND ug/L 10/18/18 0.14 1.0 -- ND ND ND ND ND ND ,> GOLDEP 8of8 February 2019 TABLE 4 1668421.103 Summary of Groundwater Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina Detected Monitoring Reporting Sample Method Practical SWS Upgradient Well Downgradient Wells Detection Quantitation Reporting Blanks Constituent/Parameter Units Date Limit Limit Limit MW-13 1-1 1-2 1-3 1-4 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 u /L 10/18/18 0.32 1.0 ND ND ND ND ND ND 1,4-Dioxane NC 2L = 3 ug/L) u /L 10/18/18 1.2 2.0 ND 240 250 300 60 ND Notes: mg/L = milligrams per liter ug/L = micrograms per liter NC 2L = North Carolina Water Quality Standard IMAC = Interim Maximum Allowable Concentration (under NC 2L Rules) EPA MCL = United States Environmental Protection Agency Maximum Contaminant Limit Prior to the November 2018 event, J flags are estimated values below the SWS Reporting limit. Beginning with the November 2018 event, J flags are estimated values J = between MDL and PQL. B = blank -qualified data ND = not detected above the laboratory detection limit or stated reporting limit = no data available or no limit established # = EPA Action Level EPA Secondary MCL Blanks = field, trip and method blanks Bold = concentrations above applicable IMAC and/or NC 2L have been bolded. Shaded = concentrations above applicable EPA MCL have been shaded. MDL = laboratory method detection limit Data prior to April 2017 provided by S&ME Engineering Laboratory method blank data was unavailable for data prior to April 2017. However, B flags for the 04/16/09, 10/07/09, and 10/11/10 were present on laboratory electronic The following dilutions were noted for the October 2018 event: 1,4-dioxane at all points by 20X SWS Reporting Limit = NCPQL prior to 2007 and NCSWSL starting on 01/18/07 GO GOLDER 9of8 February 2019 1668421.103 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 NIW-13 1-1 1.2 13 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. 1 10/18/18 6.39 5.84 6.08 6.21 6.70 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 1 10/18/18 1 317 1 2662 1985 2146 1363 G0LQER 1of3 February 2019 1668421.103 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 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 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 1 10/18/18 3.07 2.13 19.5 366 15.7 OAdation Reduction mV 05/10/05 -65 -250 -322 -313 -278 Potential (Field) mV 10/11/05 197 -78 -26 -54 -7 mV 04/24/06 -- 58 -129 -89 -107 mV 10/16/06 -- -65 -159 -138 -207 mV 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 mV 10/05/10 244 287 105 123 82 mV 05/10/11 -- -- -- -- -- mV 10/06/11 166 185 4 87 -63 mV 04/16/12 171 134 33 62 -65 mV 10/24/12 127 73 -37 63 -109 mV 04/24/13 178 89 -70 49 -102 mV 09/09/13 116 106 25 63 -90 mV 04/22/14 118 164 92 125 -78 mV 10/01/14 109 45 -70 -45 -133 mV 04/07/15 50 36 0 16 -73 mV 10/06/15 -38.4 123 -12 54 106 mV 04/18/16 135 63 6 32 -107 mV 09/26/16 42.2 22 -32 20 -59 mV 04/25/17 154.9 32.9 -18.0 41.8 -68.0 mV 10/16/17 154.1 81.7 -42.2 54.2 -88.4 mV 04/16/18 364.8 214.4 47.6 201.6 -108.9 mV 1 10/18/18 1 158.7 1 -4.1 -29.7 150.3 -56.2 G0LQER 2of3 February 2019 1668421.103 TABLE 5 Summary of Groundwater Field Parameters White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina Detected Monitoring ConstituentlParameter Reporting Units Sample Date Upgradient Well Downgradient Wells MW-13 1-1 1.2 1.3 1.4 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 m /L 1 10/18/18 1 3.55 1 0.92 1.91 0.39 0.70 Notes: S.U. = Standard Units NTU = Nephelometric Turbidity Units uS/cm = microsiemens per centimeter mg/L = milligrams per liter mv= Millivolts --= no data available Data prior to April 2017 provided by S&ME Engineering GaLQER 3of3 February 2019 1668421.103 TABLE 6 Summary of Surface Water Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina DetectedConstituent Reporting Sample Practical SWS Upstream Surface Water Monitoring Points Downstream Surface Water Monitoring Points (SWMethod (SW Standard) Units Date Detection Quanitation Reporting Blanks 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 ND 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 1 0.258 J ND ug/L 10/11/10 0.22 -- 6 -- 0.329 1 0.254 1 0.233 1 0.221 J ND ug/L 05/12/11 0.22 -- 6 0.448 1 ND 0.287 1 0.241 1 0.261 J ND ug/L 10/07/11 1.1 -- 6 ND ND ND 0.287 1 0.24 J ND ug/L 04/19/12 0.22 -- 6 0.279 J ND 0.34 J 0.308 1 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 1 ND ND ND ug/L 04/25/14 0.22 -- 6 0.695 1 1.62 1 0.582 1 0.332 d 0.264 1 ND ug/L 10/02/14 0.22 -- 6 0.526 1 ND 0.378 1 0.268 d 0.267 1 ND ug/L 04/06/15 0.22 -- 6 0.312 1 ND 0.232 1 ND 0.754 1 ND ug/L 10/07/15 0.22 -- 6 0.268 1 ND 0.372 1 0.259 1 ND ND ug/L 04/20/16 0.22 -- 6 0.22 ND ND 0.424 1 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 u /L 10/18/18 1 1.85 5.00 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 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 2.4 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 1 3.39 1 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 1 ND ND ND ug/L 10/26/12 2.8 -- 10 ND ND ND ND 5.25 1 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 1 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 1 ND ND u /L 10/18/18 1 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 ND 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 ND ND 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 1 25.4 1 25.6 1 ND ug/L 09/25/07 -- -- -- 74.5 J 70.9 1 16.8 1 23 1 24 1 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 1 21.8 1 27 d 27 1 ND ug/L 04/13/09 4.2 -- 100 -- 53.4 1 44.8 1 41.6 d 42 1 ND ug/L 10/20/09 1 -- 100 68.3 1 36.3 1 21.8 1 27.2 d 26.9 1 ND ug/L 04/30/10 1 -- 100 -- 48.5 1 30.9 1 37.1 J 44.2 1 ND ug/L 10/11/10 1 -- 100 - 47.1 1 18.8 1 29.3 J 30.6 1 ND ug/L 05/12/11 1 -- 100 77.3 1 39.3 1 40.3 1 35.3 J 37 1 ND ug/L 10/07/11 1 -- 100 74.2 1 76.4 1 21.4 1 42.7 J 32.2 J ND ug/L 04/19/12 1 -- 100 43.7 1 48.4 1 23.5 1 33.7 d 33.7 1 ND ug/L 10/26/12 1 -- 100 48.2 1 51.2 1 25.2 1 34.8 d 35.1 1 ND ug/L 04/25/13 1 -- 100 57 1 65.1 1 28.5 1 40.8 d 37.8 1 ND ug/L 09/12/13 1 -- 100 56.7 1 40.7 1 25.3 1 31.5 d 33.9 1 ND ug/L 04/25/14 1 -- 100 100 60.8 1 49.3 1 52.7 d 48.8 1 ND ug/L 10/02/14 1 -- 100 112 45.9 1 22.3 1 24.4 d 25.1 1 ND ug/L 04/06/15 1 -- 100 59.3 1 44.3 1 42.2 1 35.5 d 47.3 1 ND ug/L 10/07/15 1 -- 100 85.7 1 46.2 1 28.3 1 319 41 1 ND ug/L 04/20/16 1 -- 100 113 46.3 J 47.5 J 31 1 35.4 J ND ug/L 09/26/16 1 -- 100 44.8 1 52.8 1 17.6 1 27.9 d 33.9 1 ND ug/L 04/28/17 1 -- 100 46.5 1 45.4 1 59.9 1 50.2 d 45.0 1 ND ug/L 10/17/17 1 -- 100 40.1 1 33.6 1 55.8 1 41.2 d 37.8 1 ND ug/L 04/16/18 1 -- 100 42.9 1 45.4 1 42.1 1 43.9 d 44.1 1 ND u /L 10/18/18 1 1.1 10.0 56.6 57.4 56.4 61.7 61.3 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 ND 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 1 ND ND ND ND 0.42 1 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 1 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 u /L 10/18/18 1 0.16 1 1.00 ND ND ND I ND ND I ND GOLDER 1of7 February 2019 1668421.103 TABLE 6 Summary of Surface Water Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina DetectedConstituent Reporting Sample Practical SWS Upstream Surface Water Monitoring Points Downstream Surface Water Monitoring Points (SWMethod (SW Standard) Units Date Detection Quanitation Reporting Blanks 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 J 0.17 J 0.26 J 0.21 J ND ug/L 10/20/09 0.36 -- 1 0.477 J ND ND ND ND ND 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 J 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 J 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 J 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 u /L 10/18/18 1 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 J ND 1.4 J ND ug/L 04/13/09 0.7 -- 10 -- 1.4 J 1.6 J 1.1 J 1.1 J ND ug/L 10/20/09 1 -- 10 8.16 J ND ND ND ND ND ug/L 04/30/10 1 -- 10 -- ND 1.14 J ND 1.95 J ND ug/L 10/11/10 1 -- 10 -- 2.52 J 1.00 1.00 1.00 ND ug/L 05/12/11 1 -- 10 4.37 J ND 1.09 J ND ND ND ug/L 10/07/11 1 -- 10 6.97 J 6.25 J 1.21 J 3.00 J ND ND ug/L 04/19/12 1 -- 10 1.11 J ND ND ND ND ND ug/L 10/26/12 1 -- 10 ND ND ND ND ND ND ug/L 04/25/13 1.4 -- 10 1.44 J 2.12 J ND ND 2.57 J ND 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 J 1.7 J 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 J ND 3.36 J ND 3.51 1 ND ug/L 10/07/15 1.4 -- 10 7.93 J ND ND 66.1 ND ND ug/L 04/20/16 1.4 -- 10 14.6 ND 6.73 J ND ND ND 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 J 1.43 J ND ND ug/L 10/17/17 1.4 -- 10 ND ND 3.94 J ND ND ND ug/L 04/16/18 1.4 -- 10 1.74 J ND 1.80 J ND 1.92 J ND u /L 10/18/18 1.4 10.0 ND ND ND ND ND 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 J ND ND ND ND ND ug/L 05/05/08 2 -- 10 -- ND ND 7.1 J 3.8 J ND ug/L 12/04/08 1.1 -- 10 -- ND ND ND 2.9 J ND ug/L 04/13/09 0.6 -- 10 -- 1.8 J 0.7 J 0.8 J 0.6 J ND ug/L 10/20/09 1.1 -- 10 3.43 J ND ND ND ND ND ug/L 04/30/10 1.1 -- 10 - ND ND ND 1.98 J ND ug/L 10/11/10 1.1 -- 10 - ND ND ND ND ND ug/L 05/12/11 1.1 -- 10 3.19 J ND ND ND ND ND ug/L 10/07/11 1.1 -- 10 4.06 J 6.5 J 1.19 J 2.28 J 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 J ND ND ND ND ug/L 09/12/13 1.1 -- 10 ND ND 1.46 J 1.15 J ND ND ug/L 04/25/14 1.1 -- 10 4.31 J ND 1.91 J ND ND ND ug/L 10/02/14 1.1 -- 10 8.95 J ND 4.56 J 2.46 J 2.45 J ND ug/L 04/06/15 1.1 -- 10 1.73 J ND 2.44 J 1.56 J 2.18 J ND ug/L 10/07/15 1.1 -- 10 4.34 J ND 2.43 J 46.5 1.92 J ND ug/L 04/20/16 1.1 -- 10 7.38 J ND 4.32 J 1.66 J 2.1 J ND ug/L 09/26/16 1.1 -- 10 ND 1.30 J ND ND ND ND ug/L 04/28/17 1.1 -- 10 ND ND 2.31 J ND ND ND ug/L 10/17/17 1.1 -- 10 ND ND 2.94 J ND ND ND ug/L 04/16/18 1.1 -- 10 1.65 J 1.49 J ND 1.30 J 1.32 J ND u /L 10/18/18 1 1.4 10.0 ND ND 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 J 1.5 J 6.2 J 4.5 J 4.3 J ND ug/L 09/25/07 -- -- -- 11.2 0.6 10.3 8.4 J 10.1 ND ug/L 05/05/08 0.6 -- 10 -- 1.3 J 2.5 J 13.3 3.7 J ND ug/L 12/04/08 1.6 -- 10 -- 20.5 4.6 J 4.3 J 6.4 J ND ug/L 04/13/09 0.81 -- 10 -- 1.93 J 2.56 J 1.87 J 1.78 J ND ug/L 10/20/09 1.6 -- 10 10.7 ND 7.1 J 5.15 J 5.26 J ND ug/L 04/30/10 1.6 -- 10 -- ND 5.9 J 3.3 J 6.33 J ND ug/L 10/11/10 1.6 -- 10 -- 10.2 8.12 J 5.59 J 3.91 J ND ug/L 05/12/11 1.6 -- 10 12.6 ND 3.34 J 2.89 J 3.03 J ND ug/L 10/07/11 1.6 -- 10 8.31 J 5.88 J 4.91 J 6.56 J 3.28 J ND ug/L 04/19/12 1.6 -- 10 2.72 J ND 5.01 J 4.36 J 4.11 J ND ug/L 10/26/12 1.6 -- 10 2.04 J ND 5.47 J 2.22 J 2.71 J ND ug/L 04/25/13 1.6 -- 10 3.43 J 5.01 J 4.46 J 4.33 J 6.16 J ND ug/L 09/12/13 1.6 -- 10 1.94 J ND 1.67 J ND ND ND ug/L 04/25/14 1.6 -- 10 16.7 B 3.46 B 10.5 B 5.92 B 6.29 B -- ug/L 10/02/14 1.6 -- 10 30.9 1.82 J 6.82 J 5.42 J 5.30 J ND ug/L 04/06/15 1.6 -- 10 4.30 J 3.71 J 11.1 5.23 J 8.24 J ND ug/L 10/07/15 1.6 -- 10 11.3 1.6 2.65 J 57.1 2.17 J ND ug/L 04/20/16 1.6 -- 10 21.2 ND 10.8 2.56 J 4.07 J ND ug/L 09/26/16 1.6 -- 10 4.52 J 2.57 J 6.61 J 6.03 J 8.07 J ND ug/L 04/28/17 1.6 -- 10 5.19 J 3.02 J 13.4 4.55 J 4.51 J ND ug/L 10/17/17 1.6 -- 10 3.95 J 1.77 J 9.07 J 2.58 J 2.89 J ND ug/L 04/16/18 1.6 -- 10 4.40 J 4.19 J 4.11 J 5.33 J 3.98 J ND u /L 10/18/18 1 1.6 1 10.0 3.11 J 3.84 J 2.72 J 2.42 J 3.55 J ND GOLDER 2of7 February 2019 1668421.103 TABLE 6 Summary of Surface Water Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina DetectedConstituent Reporting Sample Practical SWS Upstream Surface Water Monitoring Points Downstream Surface Water Monitoring Points (SWMethod (SW Standard) Units Date Detection Gluanitation 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 ug/L 09/25/07 -- -- -- 11.2 ND ND ND ND ND ug/L 05/05/OB 2 -- 10 -- ND ND 14.8 ND ND ug/L 12/04/OB 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 10/1ill 0 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 04/17/12 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. -- 10 ND ND ND ND ND ND ug/L 04/25/14 2.11 -- 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 04/061 5 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 09/20/16 3.1 -- 10 ND ND ND ND ND ND ug/L 04/28/117 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 04/161 8 3.1 -- 10 ND ND ND ND ND ND u /L 10/18/18 1 3.1 10.0 ND 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 0505/08 2.0 5 35 J 3.9 J 55 J 67 J ND ugL 12/04/08 18 50 ND 4.3 J 3.8 J 3.2 J ND ug/L 0.6 5 -- 2 J 15 J 1.6 J 15 J ND ugL %13/0 1020/09 . 18 5 2.9 ND 2.53 J 1.89 J ND ND0 ug/L 0430//10 / 50 - ND ND 214 J ND g 5 1ND 80 2.22 18 1.8u0 ND ug/L 05;12/1111 18 5 234 .4 J ND ND 2.57 J 266 J ND u 1007/ 18 50 6gL J 4.23 J 64J 4.31 J 3.43 J ND ug/L 04/19/12 1.8 50 ND ND 2.56 J 20 J 2.23 J ND ugL 10/26/12 5 ND 192 J 532 5.14 J 5.4 ND u 042/13 50 2.38 J 3.30 J 6.2J 6.96 J 6.85 J NDg/L ugL 09/13 5 ND ND 2.09 J ND ND ND 04/2ug/L 1 1 5 43 J 2.07 J 7.49 J 552 J 5..55 J ND ugL 1002/4 1.8 8 50 7.25 J ND 23.7 J 9.96 J 1 0. 6 J ND ug/L 040615 5 202 J ND 3.03 J 2.33 J 2.46 J ND g/L 11 0/07/5 1 500 3.16 J ND . 65J 22.0 J 3.14 J NDu u 04/2016 22 5 0 5.60 4 J 2.88 J ND ug/L gL 0926/16 2.2 5 ND ND 3.J 334 J 644 J ND ug/L 042817 22 5 ND ND 6.5042 J 2.83 J 2.62 J ND ugL 10/17/17 2.2 500 ND ND ND ND ND ND ug/L 04/16/18 2.2 -- 50 ND ND ND ND ND ND 10/18/16 1 2.2 10.0 ND ND ND ND ND ND ZSelenium 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=5ug/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 10/0,/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 1011/10 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 09/26/116 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 10/17,117 6.2 -- 10 ND ND ND ND ND ND ug/L 04/16/18 6.2 -- 10 ND ND ND ND ND ND u /L 10/18/18 1 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/OB 2 -- 10 -- ND 2.2 J ND 2.4 J ND ug/L 12/04/OB 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 04/30/11 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 u /L 10/18/18 1.9 1o.0 ND ND ND ND ND ND r> GOLDER 3 of February 2019 1668421.103 TABLE 6 Summary of Surface Water Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina DetectedConstituent Reporting Sample Practical SWS Upstream Surface Water Monitoring Points Downstream Surface Water Monitoring Points (SWMethod (SW Standard) Units Date Detection Quanitation Reporting Blanks 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 J 0.05 J 0.045 J 0.055 J 0.054 J 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 J 0.124 J 0.205 J 0.187 J 0.316 J ND ug/L 04/28/17 0.11 -- 5.5 0.389 J 0.267 J 0.261 J 0.287 J 0.205 J ND ug/L 10/17/17 0.11 -- 5.5 0.819 J 0.655 J 0.698 J 0.840 J 0.425 J ND ug/L 04/16/18 0.11 -- 5.5 ND ND ND ND ND ND u /L 10/18/18 1 0.55 5.00 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 J ND ND 1.5 J 1.2 J ND ug/L 05/05/08 1 -- 25 -- ND ND 9.3 J 2.4 J ND ug/L 12/04/08 1.4 -- 25 -- ND ND ND 2.5 J ND ug/L 04/13/09 0.7 -- 25 -- 4.2 J 2.1 J 2.5 J 2.6 J ND ug/L 10/20/09 1.4 -- 25 10.7 J 2.19 J 1.81 J 2.79 J 1.86 J ND ug/L 04/30/10 1.4 -- 25 -- ND ND ND 3.45 J ND ug/L 10/11/10 1.4 -- 25 -- 8.27 J 3.03 J 2.55 J 2.02 J ND ug/L 05/12/11 1.4 -- 25 8.52 J 1.90 J 2.35 J 2.27 J 2.42 J ND ug/L 10/07/11 1.4 -- 25 11.9 J 21.0 J 2.27 J 6.55 J 1.66 J ND ug/L 04/19/12 1.4 -- 25 2.33 J ND 1.48 J 1.60 J 1.44 J ND ug/L 10/26/12 1.4 -- 25 ND ND ND ND ND ND ug/L 04/25/13 1.4 -- 25 2.31 J 5.99 J ND ND ND ND ug/L 09/12/13 1.4 -- 25 2.11 J ND 1.70 J 1.53 J ND ND ug/L 04/25/14 1.4 -- 25 17.9 J ND 4.7 J 2.25 J 1.60 J ND ug/L 10/02/14 1.4 -- 25 42.2 ND 3.14 J 2.66 J 2.26 J ND ug/L 04/06/15 1.4 -- 25 2.34 J ND 3.33 J ND 4.62 J ND ug/L 10/07/15 1.4 -- 25 18.2 J 2.91 J 3.69 J 61.8 3.05 J ND ug/L 04/20/16 1.4 -- 25 26.9 ND 12.0 J 2.13 J 3.04 J ND ug/L 09/26/16 1.4 -- 25 1.95 J ND ND 1.64 J 4.58 J ND ug/L 04/28/17 1.4 -- 25 2.61 J 1.66 J 8.36 J 2.35 J 2.36 J ND ug/L 10/17/17 1.4 -- 25 2.42 J ND 7.92 J 3.42 J 2.88 J ND ug/L 04/16/18 1.4 -- 25 2.33 J 2.14 J 2.45 J 2.94 J 3.67 J ND u /L 10/18/18 1 1.4 10.0 1.88 J 2.26 J 1.51 J 1.61 J 1.70 J 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 10/0,/06 50 ND ND 0.4 ND.. ND ND u 04/10/07 76 J 235 4 2gL 8. 39.5 ND ug/L 0925/07 -- 84.9 11.4 60.4 364 457 ND ugL 055O 1.0 10 -- .8 J 6.J 154 20.4 ND ug/L 12/0 38 10 22.4 47.9 353 346 ND ugL 00143//9 3.4 -- 10 -- 24.9 21.4 25. 27.2 ND0 g 10/20/09 3.8 10 70.0 762 J 452 30 33.2 ND 04/30/ 10 6.64 J 481 ... 340 542 NDL ug/L 1011/10 3 10 -- 32.0 30.1 22.8 22. ND ugL 05/12/11 3.8 10 76.2 10.1 335 27.7 36.9 ND gL 10/07/11 3.8 10 10 _ 1 ND ug L 04/19/12 3 10 5.98 J ND 320 21.6 22.9 ND ug/L 10/26/12 3.8 10 123 5.81 J 25.3 20.3 220 ND ugL 04%/13 38 10 15.0 25.8 42.6 31.6 33..1 ND gL 09/12/13 3.8 10 9.73 J ND 29. 14.9 171 ND ug L 04/25/14 3 10 66.3 792 J 6 37.2 33.7 ND ug/L 10/02/14 3.8 10 144 3.94 J 3.6 349 34.0 ND ugL 04/06/15 3 10 164 5.33 J 57.3 300 51.6 ND gL 1007/15 3.8 10 11.7 7.88 J 25.2 1020 24 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 J 5.21 J 20 16.4 27.7 ND ug/L 04/28/17 4.4 -- 10 11.8 6.98 J 64.8 21.1 20.1 ND ug/L 7 4.4 -- 10 8.83 J ND 32.5 5.72 J ND ND ug/L 00/171 04/16/18 4.4 -- 10 11.4 10.6 10.3 16.3 15.7 ND u /L 10/18/18 4.4 10.0 12.9 12.2 11.8 17.5 18.4 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 J 68 J 1.7 J 6.3 J ND ug/L 05/05/08 0.62 -- 100 -- ND ND ND ND ND ug/L 12/04/08 1.5 -- 100 -- 7.9 J 9.1 J 7.6 J 7.8 J ND 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 J ND 6.2 J ND ug/L 04/30/10 1.5 -- 100 -- 3.0 J 3.5 J 4.6 J 4.1 J ND ug/L 10/11/10 1.5 -- 100 -- ND ND ND ND ND ug/L 05/12/11 1.2 -- 100 9.7 J 7.5 J 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 J ND ND ND ND ug/L 04/25/13 0.96 -- 100 1.0 J 1.0 J ND ND 1.6 J ND ug/L 09/12/13 1.2 -- 100 ND ND ND ND ND ND 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 J ND ND 11 J ND ug/L 04/28/17 10 -- 100 23 B 19 B 19 B 36 B 16 B 33 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 ND ND u /L 10/18/18 10 20 ND ND ND ND ND ND Q* GOLDER 4 of February 2019 1668421.103 TABLE 6 Summary of Surface Water Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina DetectedConstituent Reporting Sample Practical SWS Upstream Surface Water Monitoring Points Downstream Surface Water Monitoring Points (SWMethod (SW Standard) Units Date Detection Quanitation Reporting Blanks Limit Limit Limit SW-1 SW-2 SW-3 SW-4 SW-5 Bromodichloromethane 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 ND ND ND ND ug/L 09/25/07 -- -- -- ND ND 6.5 0.66 B 0.48 B 0.19 J ug/L 05/05/08 0.20 -- 1 -- ND ND ND ND ND ug/L 12/04/08 0.37 -- 1 -- ND ND ND ND ND ug/L 04/13/09 0.37 -- 1 -- ND ND ND ND ND ug/L 10/20/09 0.37 -- 1 ND ND 1 ND ND ND ug/L 04/30/10 0.1 -- 1 -- ND 0.83 J ND ND ND ug/L 10/11/10 0.37 -- 1 -- ND 8.3 1.4 3.8 ND ug/L 05/12/11 0.75 -- 1 ND ND ND ND ND ND ug/L 10/07/11 0.75 -- 1 ND ND ND ND ND ND ug/L 04/19/12 0.17 -- 1 ND ND 0.67 J ND ND ND ug/L 10/26/12 0.17 -- 1 ND ND 0.53 J ND ND ND ug/L 04/25/13 0.17 -- 1 ND ND ND ND ND ND ug/L 09/12/13 0.17 -- 1 ND ND 0.65 J 0.49 J ND ND ug/L 04/25/14 0.17 -- 1 0.75 J ND 0.97 J ND ND ND ug/L 10/02/14 0.17 -- 1 ND ND ND ND ND ND ug/L 04/06/15 0.17 -- 1 ND ND ND ND ND ND ug/L 10/07/15 0.17 -- 1 ND ND 0.96 J ND ND ND ug/L 04/20/16 0.17 -- 1 ND ND ND ND ND ND ug/L 09/26/16 0.17 -- 1 ND ND ND ND ND ND ug/L 04/28/17 0.17 -- 1 ND ND ND ND ND ND 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 u /L 10/18/16 1 0.17 1.0 ND ND ND ND ND ND 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 u /L 10/18/18 1 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 u /L 10/18/18 1 0.17 1 1.0 ND ND ND ND ND ND ,,.> GOLDER 5of7 February 2019 1668421.103 TABLE 6 Summary of Surface Water Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina DetectedConstituent Reporting Sample Practical SWS Upstream Surface Water Monitoring Points Downstream Surface Water Monitoring Points (SWMethod (SW Standard) Units Date Detection Quanitation Reporting Blanks Limit Limit Limit SW-1 SW-2 SW-3 SW-4 SW-5 1,4-Dichlombenzene 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 u /L 10/18/18 1 0.19 1.0 ND ND ND ND ND ND Chlommethane 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 u /L 10/18/18 1 0.13 1.0 ND ND ND ND ND ND 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 u /L 10/18/18 1 0.23 1.0 ND ND ND ND ND ND Toluene ug/L 03/01/00 -- -- 5 ND ND ND ND ND ND SW Standard = 11 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 0.31 J ND ND ND ND ug/L 09/25/07 -- -- -- ND 4.2 ND ND ND ND ug/L 05/05/08 0.2 -- 1 -- ND ND ND ND ND ug/L 12/04/08 0.27 -- 1 -- ND ND ND ND ND ug/L 04/13/09 0.27 -- 1 -- ND ND ND ND ND ug/L 10/20/09 0.27 -- 1 ND ND 0.85 J ND ND ND ug/L 04/30/10 0.053 -- 1 -- ND 0.43 J ND ND ND ug/L 10/11/10 0.27 -- 1 -- ND ND ND ND ND ug/L 05/12/11 0.85 -- 1 ND ND ND ND ND ND ug/L 10/07/11 0.85 -- 1 ND ND ND ND ND ND ug/L 04/19/12 0.14 -- 1 ND ND ND ND ND ND ug/L 10/26/12 0.14 -- 1 ND ND ND ND ND ND ug/L 04/25/13 0.23 -- 1 ND ND ND ND ND ND ug/L 09/12/13 0.14 -- 1 ND ND ND ND ND ND ug/L 04/25/14 0.14 -- 1 ND ND ND ND ND ND ug/L 10/02/14 0.14 -- 1 ND ND ND ND ND ND ug/L 04/06/15 0.14 -- 1 ND ND ND ND ND ND ug/L 10/07/15 0.14 -- 1 ND ND ND ND ND ND ug/L 04/20/16 0.14 -- 1 ND ND ND ND ND ND ug/L 09/26/16 0.14 -- 1 ND ND ND ND ND ND ug/L 04/28/17 0.14 -- 1 ND ND ND ND ND ND ug/L 10/17/17 0.14 -- 1 ND ND ND ND ND ND ug/L 04/16/18 0.14 -- 1 ND ND ND ND ND ND u /L 10/18/18 1 0.14 1 1.0 ND ND ND ND ND ND GOLDER 6 of February 2019 1668421.103 TABLE 6 Summary of Surface Water Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina DetectedConstituent Reporting Sample Practical SWS Upstream Surface Water Monitoring Points Downstream Surface Water Monitoring Points (SWMethod (SW Standard) Units Date Detection Quanitation Reporting Blanks Limit Limit Limit SWA SW-2 SW-3 SW-4 SW-5 Trichlomethene 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 u /L 10/18/18 1 0.15 1 1.0 ND ND ND ND ND I ND 1,4-Diomne SW Standard =80u /L u /L 10/18/18 1.2 2.0 ND ND ND 2.1 1.5 J ND Tetrahydrofuran ug/L 04/20/16 0.8 -- -- ND ND ND ND ND ND No SW standard ug/L 0./26/16 0.8 -- -- ND ND ND ND ND ND ug/L 04/28/17 0.17 -- 1 ND ND ND ND ND ND u /L 10/18/18 0.53 1.0 ND Notes: mg/L = milligrams per liter ug/L = micrograms per liter EPA MCL = United States Environmental Protection Agency Mawmum Contaminant 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 PCL. B = blank -qualified data ND- not detected above the laboratory detection limit or stated reporting limit = no data available or no limit established = EPA Action Level = EPA Secondary MCL Blanks = field, trip and method blanks Bold = Concentrations above Human Health or Chronic Surface Water Standard Shaded and Bold = Concentration above Acute and Chronic Surface Water Standards SW Standard = Surface water standard (action level) = Surface Water Standards based on Class C Freshwater Aquatic Life stream classification for the Bearskin Swamp per 15A NCAC 2B. MDL = laboratory method detection limit Data prior to April 2017 provided by SBME Engineering Laboratory method blank data was unavailable for data prior to April 2017. However, B flags for the 05/05/08, 10/20/09, 04/25/14, and 10/02/14 were present on laboratory electronic files. SWS Reporting Limit = NCPQL prior to 2007 and NCSWSL starting on 01/18/07 li GOLDER 7 of February 2019 1668421,103 TABLE 7 Summary of Surface Water Field Parameters Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina Detected Constituent Reporting Sample Upstream Surface Water Monitoring Points Downstream Surface Water Monitoring Points (SW Standard) Units Date SWA 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. 03/071 2 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. 10/11/0S 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/O6/15 7.27 7.37 7.34 7.62 7.19 S.U. 04/18/i6 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. 041265 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. 0.16/18 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 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 0.15/03 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 ust 05/10/05 283 271 391 387 390 uS/cm 10/11/05 167 215 319 264 269 uS/cm 04/24/O6 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 12/05/0 -- 31.6 32.6 31.1 29.1 uS/cm 04/16/08 -- 19.8 23.8 26.5 24.9 uS/cm 10/07/09 -- - -- - - uS/cm 04/28/1 -- - -- - - 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= 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/O6/15 229 151 337 299 284 uSt 04118/i6 254 183 313 397 300 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 0.16/18 233 215 234 217 2267 uS/cm 10/18/18 191.1 263.8 158.5 1 209.3 254 Y GOLDER 102 February 2019 1668421,103 TABLE 7 Summary of Surface Water Field Parameters Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina Detected Constituent Reporting Sample Upstream Surface Water Monitoring Points Downstream Surface Water Monitoring Points (SW Standard) Units Date SWA 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 Turbidity (Field) NTU 04125/1; 13.9 7.05 96.5 14.7 9.02 NTU 10/16/1 5.89 2.71 738 8.40 5.78 NTU 04/16/18 13.9 12.5 14.6 26.3 22.4 NTU loll 8/18 4.94 4.84 3.77 9.87 5.30 Oxidation Reduction Potential (field) mV 04/25/17 69.8 50.6 72.3 79.4 77.3 mV 10/16/17 81.7 60.9 174.0 81.3 10.7 mV 04/16/18 119.5 95.2 2020. 190.5 115.8 mV 10/18/18 115.1 61.7 97.2 143.1 7.9 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 m /L 10/18/18 5.95 10.74 6.99 1 7.06 5.81 Notes: S.U. = Standard Units NTU = Nephelometric Turbidity Units uS/cm = microsiemens per centimeter mg/L = milligremer per liter - = no data available Data prior to April 2017 provided by S&ME Engineering Y GOLDER 2of2 Figures 80 SW-3 LOCATED —1600 FT. WEST —4juu r 1 . VVCJ I �o SW-2 LOCATED —500 FT. WEST 1 c _ CLIENT CITY OF GREENSBORO CONSULTANT — MSW LANDFILL —,LIMITS OF WASTE YYYY-M M-D D DESIGNED � U L D E R PREPARED REVIEWED GOLDER ASSOCIATES NC, INC. APPROVED SW-4 LOCATED —900 FT. EAST 2019/02/12 ALM KFL DYR RPK LEGEND O O pp— �-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 OCTOBER 16, 2018. 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. Rsqy� D M0. Opp , �$� � _ � • � � a��a� �-- r 0 KEELYRD 01 I j. %L 'r ^� J i M/iF/NE AYLI RD fn SITE LOCATION MAP NOT TO SCALE 0 400 800 1" = 400' FEET PROJECT WHITE STREET LANDFILL CITY OF GREENSBORO GREENSBORO, NORTH CAROLINA TITLE GROUNDWATER SURFACE CONTOUR MAP OCTOBER 16, 2018 PROJECT NO. PHASE 166842117 103 0 FIGURE 1 LEGEND ❑ SW-1 SURFACE WATER MONITORING POINT ,ate' '�1.''•.. � _ r sri CLIENT CITY OF GREENSBORO 6, ULJIUN CU xr GO L D E R PREPARED SEP REVIEWED DYR GOLDER ASSOCIATES NC, INC. APPROVED RPK 1 NOTES 1. SURFACE WATER LOCATIONS ARE APPROXIMATE. 2. 7.5 MINUTE USGS QUADRANGLE, MCLEANSVILLE, NORTH CAROLINA, 2016. SITE LOCATION MAP NOT TO SCALE o 0 0 1500 3000 1" = 1500' FEET PROJECT WHITE STREET LANDFILL CITY OF GREENSBORO GREENSBORO, NORTH CAROLINA TITLE SURFACE WATER LOCATION MAP PROJECT NO. FIGURE 166842117 0 2 APPENDIX A Groundwater and Surface Water Sampling Logs DATE: _ (� GROUNDWATER SAMPLING LOG GOLDER Project Name: � S�-, Project /Phase No.: j � � QLt2 Well ID: MW — 011 Sampler(s): (,J Well Diameter: inches Initial Depth to Water: V9, pZ feet Depth to Bottom: 3Lk,,--) feet Water Column Thickness: I�,�� feet Pumping Rate: Ifl��p mL/min System Volume: _mL Well Location: NIA) Equipment: ®® , D• • - Weather: ; p'.y` Begin purging @ 05� C-) Signature: L_,Date: l0-V--� -\,�� QA/QC Sign Off: ���.Jt�f� Date: DATE: lo- i 6� T GROUNDWATER SAMPLING LOG Project Name: Project /Phase No.: 166V-Z,1 Well ID: 1 � Sampler(s): !-,(Go Well Diameter: Z inches Initial Depth to Water: ` 6q feet Depth to Bottom: I feet Water Column Thickness: feet Pumping Rate: mL/min System Volume: 172 I mL Well Location: Equipment: Nice 114 aPMR, Ysi 5o PI E 4 Yt"f ve l YMW5 Tvt L Af,&(,, MM P-15 ®® � � �11ryZ�J I • ��� ����� Weather: Begin purging @ ,` S 4- Signature: Date: 1xi'- 4-1g QA/QC Sign Off: _ j�s Date: tf l C43 DATE: 16^19_ ( 0 GROUNDWATER SAMPLING LOG GOL.DER Project Name: Project /Phase No.: 16 6$ ¢ZI Well ID: _- Sampler(s): - Ua- Well Diameter: inches Initial Depth to Water: feet Depth to Bottom: Z ,, feet Water Column Thickness: 16,3 feet Pumping Rate: CV-+-L—�=mUmin System Volume: I Z -7 ( mL Well Location: Equipment: VeYUAieJ bikAhe- �-C ® i:>t - r o mom, ENNA 1 0 mom �0001001 Weather: l- 11--I 0 VL+ k; u , t- -Dn m�) r clIt rl r�X\ W MI& . 0 WIC, i Signature: # Lqdb Date: QA/QC Sign Off: ��G,r_ _ Date: i-�- GOLDEP DATE: r a — /;" t i GROUNDWATER SAMPLING LOG Project Name: }tip } Sa- L-- Project /Phase No.: 16 (,,8cjZ 1 Well ID: �-- _-S Sampler(s): W,>3-',llo...f Well Diameter: Z inches Initial Depth to Water: feet Depth to Bottom: 2-Lj- feet Water Column Thickness: ''¢j-1 . feet Pumping Rate: 14Cn mUmin System Volume: 1 mL Well Location: {,J &j -,�p Z l.F. �Z,�— Equipment: I� ®® . • •Turb. Dis. MEN i�� � No �■� Weather: GD �.!5" Beain nuraina lad i"-' Signature: 7 / Date: QA/QC Sign Off: �is API Date: DATE: )C2 - ) .9'/t GROUNDWATER SAMPLING LOG GOLDER Project Name: LX)W, Project /Phas_e No.: �q2, Well ID: ,a -,J Sampler(s): _ LJ, t k\n„ _ Well Diameter: 2 inches Initial Depth to Water: 2. (,) feet Depth to Bottom: I`� , t7 feet Water Column Thickness:--\Z,STfeet Pumping Rate: A mUmin System Volume: I (,,—mL Well Location: N e,v� ay P e.S - LF i r. -n,4 :S end �2ek\,\ Equipment: Y Q. 'i,- S )aa-t x- 1rn' q �-.1� _ ...-.. o L , Time pH (S.U.) Sp. Cond. (US/CM) Turb. (NTU) Dis OZ (mg/L) Temp. VC) ORP (millivolts) DTW (feet) IOLK 1 3 \ 11. ►o� G 1 1 . o ." \--+ - 1�3� S• 9- ) - � �-1Z �•� 1-2-1 mot, -L19, - G 1 -6 • �- 1 y, 5 Comments (weather conditions. color. tvne of sample. ourae-water manaaement_ AMA, Weather: Signature: �✓,i�1.� '� Date: QA/QC Sign Off: GiJ����c Date: 1 p- L-2 /0--" DATE: SURFACE WATER SAMPLING LOG COLDER Project Name: LA)�!I e 5�. LI— Project No./Phase No.: fl�c. �yz I Sample ID: Sampler(s): Sampling Location: �l�o� L �al-� �e�rt.,�, M,tt Equipment: �'ioP1 , s n .r o1 la d-c — --2- Surface Water Location Sketch Time pH S.U. Sp. Cond. US/cm Turb. NTU Dis. Oz mg/L zs Temp. oC ORP m V _ Comments (sample methodology, weather conditions, color, silt, etc.): Weather: /, p- s °) Le.,,, - Signature: Date: QA/QC Sign Off: Date: DATE: J0-)9-1� SURFACE WATER SAMPLING LOG JJIL Project Name: Project No./PhaseNo.: Sample ID: LJ- Z Sampler(s): I� h Sampling Location: �,� �� F flA i f3la G/:����., Equipment: Y ? Pro (�(..,; 1-k , � 210 Time (2S5 PH S.U. O Sp. Cond. US/cm 2 �3 Tu rb. NTU I� Dis. 02 mg/L 5 `� Temp. °C of ORP mV -1\ J� Surface Water Location Sketch N ,�� C r-e-< tr Comments (sample methodology, weather conditions, color, silt, etc.): Weather: 60'S'T- c,i c e,, Signature: Cam, "L Date: I �) - 11)- \ u QA/QC Sign Off: Date: DATE: SURFACE WATER SAMPLING LOG GOLDER Project Name: 4,j �.� 5�, L k Project No./Phase No.: Sample ID: < 3 Sampler(s): ,, Sampling Location: Lj- ��f�, A/F Equipment: �� 5� �� }'ll-1 c �i 2 0 o a f3 C r i Time 12� pH S.U. S Sp. Cond. us/cm _ Tu rb. NTU Dis. 02 mg/L Temp. °C o� �� \ ORP mV q �� Surface Water Location Sketch �'J\J Comments (sample methodology, weather conditions, color, silt, etc.): Weather: 0�:-,, LI(-_ a._r'...< a(xM�Ie coilecytd bob IOuye, (1 A bo,let�i✓1i� O L; n 3 S 1w Signature: �+ _ ?�_� _f— Date: \')`19 QA/QC Sign Off: Date: DATE: SURFACE WATER SAMPLING LOG GOLDER Project Name: In.e S �� Project No./Phase No.: Sample ID: _ — Sampler(s): 61:11 Ila ) 1yas�J Sampling Location: 10� �� t,r r; �� b/"J �� Z°I ,,) Sw�.� FA*A— Equipment: Time ( i pH S.U. Sp. Cond. US/cm Turb. NTU , Dis. OZ mg/L Temp. oC Z ORP mV J Surface Water Location Sketch ixSr Comments (sample methodology, weather conditions, color, silt, etc.): Weather: /, �" s° r , Signature:: r ��"___ c � Date: \q - QA/QC Sign Off: Date: GOLDER DATE: fb _17-I SURFACE WATER SAMPLING LOG Project Name: White Street Landfill Project No./Phase No.: Sample ID: S V\J - 5 Sampler(s): Sampling Location: Equipment: YSI Pro Plus, Turbidimeter Time I t30 pH s.u. 7,''O Sp. Cond. us/cm Turb. ntu s,3G Dis.02 m /L S.11 Temp. cc ORP my 1668421 E.Vasko Surface Water Sampling Location Sketch ACC 1 :3 s k °4r/ PhasL%ZLF Comments (sample methodology, weather conditions, color, silt, etc.): N Signature: 4n.�,V&�- sws Date: 1 d -17- 1? QA/QC Sign Off: ,, ,1����/ Date: APPENDIX B October 2018 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 Wednesday, October 31, 2018 Golder Associates, Inc. (G0007) Attn: Dusty Reedy 5B Oak Branch Drive Greensboro, NC 27407 RE: Laboratory Results for Project Number: 1668421.104, Project Name/Desc: White Street LF-Phase I,II GW/SW ENCO Workorder(s): CB15730 Dear Dusty Reedy, Enclosed is a copy of your laboratory report for test samples received by our laboratory on Thursday, October 18, 2018. Unless otherwise noted in an attached project narrative, all samples were received in acceptable condition and processed in accordance with the referenced methods/procedures. Results for these procedures apply only to the samples as submitted. The analytical results contained in this report are in compliance with NELAC standards, except as noted in the project narrative if applicable. This report shall not be reproduced except in full, without the written approval of the Laboratory. This report contains only those analyses performed by Environmental Conservation Laboratories. Unless otherwise noted, all analyses were performed at ENCO Cary. Data from outside organizations will be reported under separate cover. If you have any questions or require further information, please do not hesitate to contact me. Sincerely, Stephanie Franz Project Manager Enclosure(s) FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 1 of 2H PROJECT NARRATIVE Date: 31 October 2018 Client: Golder Associates, Inc. (G0007) Project: White Street LF-Phase 1,11 GW/SW Lab ID: CB15730 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 Bis(2-ethylhexyl)phthalate, a common laboratory contaminant, was detected in the 8270D Method Blank, and the Continuing Calibration Verification sample (CCV) exhibited a high bias for 2,4-Dinitrophenol, 2-Acetylaminofluorene, 5-Nitro-o-toluidine, methapyrilene, and Parathion; however, these analytes were not detected in the associated samples, reducing the impact of the deviation. The CCV exceeded the lower control limits for 3-Nitroaniline; the reported results should be considered minimum estimates. The spike recovery of Mercury was outside of control limits for the Post Spike sample. The QC batch was approved based on acceptable LCS recovery of this element. The spike recovery of Cyanide was outside of control limits for the MS and MSD samples. The QC batch was approved based on acceptable LCS recovery of this analyte. Quality Control Remarks No Comments Other Comments All samples received under this work order arrived in acceptable conditions. The samples were not checked for residual chlorine, as it is not required. 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: 4103-MW13 Lab ID: CB15730-01 Sampled: 10/17/18 08:30 Received: 10/18/18 12:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 04/15/19 10/23/18 09:50 10/24/18 13:27 EPA 6020B EPA 3005A 04/15/19 10/18/18 14:58 10/23/18 09:58 EPA 7470A EPA 7470A 11/14/18 10/22/18 14:54 10/23/18 12:38 EPA 8081E EPA 3510C 10/24/18 12/02/18 10/23/18 15:39 10/25/18 19:11 EPA 8082A EPA 3510C 10/17/19 12/02/18 10/23/18 15:52 10/25/18 19:11 EPA 8151A Same 2 10/24/18 12/01/18 10/22/18 15:30 10/24/18 12:03 EPA 8260B EPA 503013_MS 10/31/18 10/23/18 09:15 10/24/18 19:07 EPA 8260C EPA 503013_MS 10/31/18 10/23/18 00:00 10/23/18 14:49 EPA 8270D EPA 3510C MS 10/24/18 12/02/18 10/23/18 06:13 10/29/18 17:58 EPA 9014 EPA 9010C 10/31/18 10/19/18 10:46 10/23/18 09:05 SM 4500S2 D-2011 NO PREP 10/24/18 10/22/18 16:50 10/22/18 17:15 Client ID: 4303-SW5 Lab ID: CB15730-02 Sampled: 10/17/18 14:32 Received: 10/18/18 12:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 04/15/19 10/23/18 09:50 10/24/18 13:29 EPA 6020B EPA 3005A 04/15/19 10/18/18 14:58 10/23/18 10:23 EPA 8260E EPA 503013_MS 10/31/18 10/23/18 09:15 10/24/18 19:38 EPA 8260C EPA 503013_MS 10/31/18 10/23/18 00:00 10/23/18 15:27 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: 4103-MW13 Lab ID: CB15730-01 Anala Results Flag MDL POLL Units Method Notes Barium - Total 94.5 1.10 10.0 ug/L EPA 6010D Vanadium - Total 4.20 1 1.40 10.0 ug/L EPA 6010D Zinc - Total 6.31 1 4.40 10.0 ug/L EPA 6010D Client ID: 4103-SWS Lab ID: CB15730-02 Anala Results Flag MDL POLL Units Method Notes 1,4-Dioxane 1.5 1 1.2 2.0 ug/L EPA 8260C Barium - Total 61.3 1.10 10.0 ug/L EPA 6010D Copper - Total 3.55 1 1.60 10.0 ug/L EPA 6010D Vanadium - Total 1.70 1 1.40 10.0 ug/L EPA 6010D Zinc - Total 18.4 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 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-MW13 Lab Sample ID:CB15730-01 Received: 10/18/18 12:00 Matrix: Ground Water Sampled:10/17/18 08:30 Work Order: CB15730 Project: White Street LF-Phase I,II GW/SW Sampled By: William Ballow/ 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 8323008 EPA 8260E 10/24/18 19:07 ref 1,1,1-Trichloroethane [71-55-6]^ 0.12 U ug/L 1 0.12 1.0 8323008 EPA 8260E 10/24/18 19:07 ref 1,1,2,2-Tetrachloroethane [79-34-5]^ 0.28 U ug/L 1 0.28 1.0 8323008 EPA 8260E 10/24/18 19:07 ref 1,1,2-Trichloroethane [79-00-5]^ 0.14 U ug/L 1 0.14 1.0 8323008 EPA 8260E 10/24/18 19:07 ref 1,1-Dichloroethane [75-34-3]1 0.13 U ug/L 1 0.13 1.0 8323008 EPA 8260E 10/24/18 19:07 ref 1,1-Dichloroethene [75-35-4]1 0.21 U ug/L 1 0.21 1.0 8323008 EPA 8260E 10/24/18 19:07 ref 1,1-Dichloropropene [563-58-6]^ 0.15 U ug/L 1 0.15 1.0 8323008 EPA 8260E 10/24/18 19:07 ref 1,2,3-Trichloropropane [96-18-4]1 0.23 U ug/L 1 0.23 1.0 8323008 EPA 8260E 10/24/18 19:07 ref 1,2,4-Trichlorobenzene [120-82-1]^ 0.14 U ug/L 1 0.14 1.0 8323008 EPA 8260E 10/24/18 19:07 ref 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 8323008 EPA 8260E 10/24/18 19:07 ref 1,2-Dibromoethane [106-93-4]1 0.66 U ug/L 1 0.66 1.0 8323008 EPA 8260E 10/24/18 19:07 ref 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 8323008 EPA 8260E 10/24/18 19:07 ref 1,2-Dichloroethane [107-06-2]1 0.21 U ug/L 1 0.21 1.0 8323008 EPA 8260E 10/24/18 19:07 ref 1,2-Dichloropropane [78-87-5]1 0.10 U ug/L 1 0.10 1.0 8323008 EPA 8260E 10/24/18 19:07 ref 1,3-Dichlorobenzene [541-73-1]^ 0.15 U ug/L 1 0.15 1.0 8323008 EPA 8260E 10/24/18 19:07 ref 1,3-Dichloropropane [142-28-9]^ 0.16 U ug/L 1 0.16 1.0 8323008 EPA 8260E 10/24/18 19:07 ref 1,4-Dichlorobenzene [106-46-7]1 0.19 U ug/L 1 0.19 1.0 8323008 EPA 8260E 10/24/18 19:07 ref 2,2-Dichloropropane [594-20-7]^ 0.28 U ug/L 1 0.28 1.0 8323008 EPA 8260E 10/24/18 19:07 ref 2-Butanone [78-93-3]^ 1.3 U ug/L 1 1.3 5.0 8323008 EPA 8260E 10/24/18 19:07 ref 2-Hexanone [591-78-6]1 0.88 U ug/L 1 0.88 5.0 8323008 EPA 8260E 10/24/18 19:07 ref 3-Chloropropene [107-05-1]^ 0.11 U ug/L 1 0.11 1.0 8323008 EPA 8260E 10/24/18 19:07 ref 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 8323008 EPA 8260E 10/24/18 19:07 ref Acetone [67-64-1]^ 10 U ug/L 1 10 20 8323008 EPA 8260E 10/24/18 19:07 ref Acetonitrile [75-05-8]^ 5.0 U ug/L 1 5.0 10 8323008 EPA 8260E 10/24/18 19:07 ref Acrolein [107-02-8]^ 4.0 U ug/L 1 4.0 10 8323008 EPA 8260E 10/24/18 19:07 ref Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 8323008 EPA 8260E 10/24/18 19:07 ref Benzene [71-43-2]^ 0.15 U ug/L 1 0.15 1.0 8323008 EPA 8260E 10/24/18 19:07 ref Bromochloromethane [74-97-5]^ 0.48 U ug/L 1 0.48 1.0 8323008 EPA 8260E 10/24/18 19:07 ref Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 8323008 EPA 8260E 10/24/18 19:07 ref Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 8323008 EPA 8260E 10/24/18 19:07 ref Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 8323008 EPA 8260E 10/24/18 19:07 ref Carbon disulfide [75-15-0]^ 1.5 U ug/L 1 1.5 5.0 8323008 EPA 8260E 10/24/18 19:07 ref Carbon tetrachloride [56-23-5]^ 0.17 U ug/L 1 0.17 1.0 8323008 EPA 8260E 10/24/18 19:07 ref Chlorobenzene [108-90-7]^ 0.17 U ug/L 1 0.17 1.0 8323008 EPA 8260E 10/24/18 19:07 ref Chloroethane [75-00-3]^ 0.23 U ug/L 1 0.23 1.0 8323008 EPA 8260E 10/24/18 19:07 ref Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 8323008 EPA 8260E 10/24/18 19:07 ref Chloromethane [74-87-3]^ 0.13 U ug/L 1 0.13 1.0 8323008 EPA 8260E 10/24/18 19:07 ref Chloroprene [126-99-8]^ 0.64 U ug/L 1 0.64 1.0 8323008 EPA 8260E 10/24/18 19:07 ref cis- 1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 8323008 EPA 8260E 10/24/18 19:07 ref cis- 1,3-Dichloropropene [10061-01-5]^ 0.20 U ug/L 1 0.20 1.0 8323008 EPA 8260E 10/24/18 19:07 ref Dibromochloromethane [124-48-1]^ 0.17 U ug/L 1 0.17 1.0 8323008 EPA 8260E 10/24/18 19:07 ref Dibromomethane [74-95-3]^ 0.27 U ug/L 1 0.27 1.0 8323008 EPA 8260E 10/24/18 19:07 ref Dichlorodifluoromethane [75-71-8]^ 0.20 U ug/L 1 0.20 1.0 8323008 EPA 8260E 10/24/18 19:07 ref Ethyl Methacrylate [97-63-2]^ 0.38 U ug/L 1 0.38 1.0 8323008 EPA 8260E 10/24/18 19:07 ref Ethylbenzene [100-41-4]^ 0.13 U ug/L 1 0.13 1.0 8323008 EPA 8260E 10/24/18 19:07 ref Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 8323008 EPA 8260E 10/24/18 19:07 ref Isobutylalcohol [78-83-1]^ 11 U ug/L 1 11 50 8323008 EPA 8260E 10/24/18 19:07 ref FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Pager) of 28 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-MW13 Lab Sample ID:CB15730-01 Received: 10/18/18 12:00 Matrix: Ground Water Sampled:10/17/18 08:30 Work Order: CB15730 Project: White Street LF-Phase I,II GW/SW Sampled By: William Ballow/ 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 Methacrylonitrile [126-98-7]^ 4.9 U ug/L 1 4.9 10 8323008 EPA 8260E 10/24/18 19:07 ref Methyl Methacrylate [80-62-6]^ 0.51 U ug/L 1 0.51 1.0 8323008 EPA 8260E 10/24/18 19:07 ref Methylene chloride [75-09-2]^ 0.23 U ug/L 1 0.23 1.0 8323008 EPA 8260E 10/24/18 19:07 ref Naphthalene [91-20-3]^ 0.11 U ug/L 1 0.11 1.0 8323008 EPA 8260E 10/24/18 19:07 ref Propionitrile [107-12-0]^ 5.0 U ug/L 1 5.0 10 8323008 EPA 8260E 10/24/18 19:07 ref Styrene [100-42-5]^ 0.11 U ug/L 1 0.11 1.0 8323008 EPA 8260E 10/24/18 19:07 ref Tetrachloroethene [127-18-4]^ 0.17 U ug/L 1 0.17 1.0 8323008 EPA 8260E 10/24/18 19:07 ref Tetrahydrofuran [109-99-9]^ 0.53 U ug/L 1 0.53 1.0 8323008 EPA 8260E 10/24/18 19:07 ref Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 8323008 EPA 8260E 10/24/18 19:07 ref trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 8323008 EPA 8260E 10/24/18 19:07 ref trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 8323008 EPA 8260E 10/24/18 19:07 ref trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 U ug/L 1 0.70 1.0 8323008 EPA 8260E 10/24/18 19:07 ref Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 8323008 EPA 8260E 10/24/18 19:07 ref Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 8323008 EPA 8260E 10/24/18 19:07 ref Vinyl acetate [108-05-4]^ 0.95 U ug/L 1 0.95 5.0 8323008 EPA 8260E 10/24/18 19:07 ref Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 8323008 EPA 8260E 10/24/18 19:07 ref Xylenes(Total)[1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 8323008 EPA 8260E 10/24/18 19:07 ref Surrogates Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes 4-Bromofluorobenzene 48 1 50.0 95 % 53-136 6723008 EPA 8260E 10124118 19:07 ref Dlbromofluoromethane 52 1 50.0 104 % 67-129 6723008 EPA 8260E 1012411819:07 ref Toluene-& 51 1 50.0 102 % 59-134 6723008 EPA 8260E 1012411819:07 ref Semivolatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes 1,2,4,5-Tetrachlorobenzene [95-94-3]^ 3.4 U ug/L 1 3.4 10 8J23001 EPA 8270D 10/29/18 17:58 DFM 1,3,5-Trinitrobenzene [99-35-4]^ 3.0 U ug/L 1 3.0 10 8J23001 EPA 8270D 10/29/18 17:58 DFM 1,3-Dinitrobenzene [99-65-0]^ 2.5 U ug/L 1 2.5 10 8J23001 EPA 8270D 10/29/18 17:58 DFM 1,4-Naphthoquinone [130-15-4]^ 2.5 U ug/L 1 2.5 10 8J23001 EPA 8270D 10/29/18 17:58 DFM 1,4-Phenylenediamine [106-50-3]^ 4.0 U ug/L 1 4.0 10 8J23001 EPA 8270D 10/29/18 17:58 DFM 1-Naphthylamine [134-32-7]^ 2.2 U ug/L 1 2.2 10 8J23001 EPA 8270D 10/29/18 17:58 DFM 2,3,4,6-Tetrachlorophenol[58-90-2]^ 2.4 U ug/L 1 2.4 10 8J23001 EPA 8270D 10/29/18 17:58 DFM 2,4,5-Trichlorophenol[95-95-4]^ 2.5 U ug/L 1 2.5 10 8J23001 EPA 8270D 10/29/18 17:58 DFM 2,4,6-Trichlorophenol[88-06-2]^ 2.6 U ug/L 1 2.6 10 8J23001 EPA 8270D 10/29/18 17:58 DFM 2,4-Dichlorophenol[120-83-2]^ 2.6 U ug/L 1 2.6 10 8J23001 EPA 8270D 10/29/18 17:58 DFM 2,4-Di methyl phenol[105-67-9]^ 2.3 U ug/L 1 2.3 10 8J23001 EPA 8270D 10/29/18 17:58 DFM 2,4-Dinitrophenol[51-28-5]^ 2.6 U ug/L 1 2.6 10 8J23001 EPA 8270D 10/29/18 17:58 DFM QV-01 2,4-Dinitrotoluene [121-14-2]^ 2.6 U ug/L 1 2.6 10 8J23001 EPA 8270D 10/29/18 17:58 DFM 2,6-Dichlorophenol[87-65-0]^ 2.0 U ug/L 1 2.0 10 8J23001 EPA 8270D 10/29/18 17:58 DFM 2,6-Dinitrotoluene [606-20-2]^ 2.5 U ug/L 1 2.5 10 8J23001 EPA 8270D 10/29/18 17:58 DFM 2-Acetylaminofluorene [53-96-3]^ 3.1 U ug/L 1 3.1 10 8J23001 EPA 8270D 10/29/18 17:58 DFM QV-01 2-Chloronaphthalene [91-58-7]^ 2.8 U ug/L 1 2.8 10 8J23001 EPA 8270D 10/29/18 17:58 DFM 2-Chlorophenol[95-57-8]^ 2.2 U ug/L 1 2.2 10 8J23001 EPA 8270D 10/29/18 17:58 DFM 2-Methyl-4,6-dinitrophenol[534-52-1]^ 3.3 U ug/L 1 3.3 10 8J23001 EPA 8270D 10/29/18 17:58 DFM 2- Methyl naphthalene [91-57-6]^ 2.8 U ug/L 1 2.8 10 8J23001 EPA 8270D 10/29/18 17:58 DFM 2-Methylphenol[95-48-7]^ 2.0 U ug/L 1 2.0 10 8J23001 EPA 8270D 10/29/18 17:58 DFM 2-Naphthylamine [91-59-8]^ 3.0 U ug/L 1 3.0 10 8J23001 EPA 8270D 10/29/18 17:58 DFM 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 00� www.encolabs.com ANALYTICAL RESULTS Description: 4103-MW13 Lab Sample ID:CB15730-01 Received: 10/18/18 12:00 Matrix: Ground Water Sampled:10/17/18 08:30 Work Order: CB15730 Project: White Street LF-Phase I,II GW/SW Sampled By: William Ballow/ Erik Vasko Semivolatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 5911 Analyte rCAS Numberl Results Flan Units DF MDL Q Batch Method Analyzed By Notes 2-Nitroaniline [88-74-4]^ 2.5 u ug/L 1 2.5 10 8323001 EPA 8270D 10/29/18 17:58 DFM 2-Nitrophenol[88-75-5]^ 1.1 u ug/L 1 1.1 10 8323001 EPA 8270D 10/29/18 17:58 DFM 3 & 4-Methylphenol[108-39-4/106-44-5]^ 2.1 u ug/L 1 2.1 10 8323001 EPA 8270D 10/29/18 17:58 DFM 3,3'-Dichlorobenzidine [91-94-1]^ 3.5 u ug/L 1 3.5 10 8323001 EPA 8270D 10/29/18 17:58 DFM 3,3'-Dimethylbenzidine [119-93-7]^ 2.2 u ug/L 1 2.2 10 8323001 EPA 8270D 10/29/18 17:58 DFM 3-Methylcholanthrene [56-49-5]^ 1.3 u ug/L 1 1.3 10 8323001 EPA 8270D 10/29/18 17:58 DFM 3-Nitroaniline [99-09-2]^ 2.6 u ug/L 1 2.6 10 8323001 EPA 8270D 10/29/18 17:58 DFM QV-02 4-Aminobiphenyl[92-67-1]^ 3.5 u ug/L 1 3.5 10 8323001 EPA 8270D 10/29/18 17:58 DFM 4-Bromophenyl-phenylether [101-55-3]^ 2.4 u ug/L 1 2.4 10 8323001 EPA 8270D 10/29/18 17:58 DFM 4-Chloro-3-methylphenol[59-50-7]^ 2.4 u ug/L 1 2.4 10 8323001 EPA 8270D 10/29/18 17:58 DFM 4-Chloroaniline [106-47-8]^ 2.0 u ug/L 1 2.0 10 8323001 EPA 8270D 10/29/18 17:58 DFM 4-Chlorophenyl-phenylether[7005-72-3]^ 2.6 u ug/L 1 2.6 10 8323001 EPA 8270D 10/29/18 17:58 DFM 4-Nitroaniline [100-01-6]^ 3.2 u ug/L 1 3.2 10 8323001 EPA 8270D 10/29/18 17:58 DFM 4-Nitrophenol[100-02-7]^ 2.8 u ug/L 1 2.8 10 8323001 EPA 8270D 10/29/18 17:58 DFM 5-Nitro-o-toluidine [99-55-8]^ 3.2 u ug/L 1 3.2 10 8323001 EPA 8270D 10/29/18 17:58 DFM QV-01 7,12-Dimethylbenz(a)anthracene 1.4 u ug/L 1 1.4 10 8323001 EPA 8270D 10/29/18 17:58 DFM [57-97-6]^ Acenaphthene [83-32-9]^ 2.7 u ug/L 1 2.7 10 8123001 EPA 8270D 10/29/18 17:58 DFM Acenaphthylene [208-96-8]^ 2.6 u ug/L 1 2.6 10 8123001 EPA 8270D 10/29/18 17:58 DFM Acetophenone [98-86-2]^ 2.0 u ug/L 1 2.0 10 8123001 EPA 8270D 10/29/18 17:58 DFM Anthracene [120-12-7]^ 2.4 u ug/L 1 2.4 10 8123001 EPA 8270D 10/29/18 17:58 DFM Benzo(a)anthracene [56-55-3]^ 2.4 u ug/L 1 2.4 10 8123001 EPA 8270D 10/29/18 17:58 DFM Benzo(a)pyrene [50-32-8]^ 2.2 u ug/L 1 2.2 10 8123001 EPA 8270D 10/29/18 17:58 DFM Benzo(b)fluoranthene [205-99-2]^ 2.8 u ug/L 1 2.8 10 8123001 EPA 8270D 10/29/18 17:58 DFM Benzo(g,h,i)perylene [191-24-2]^ 2.4 u ug/L 1 2.4 10 8123001 EPA 8270D 10/29/18 17:58 DFM Benzo(k)fluoranthene [207-08-9]^ 2.4 u ug/L 1 2.4 10 8123001 EPA 8270D 10/29/18 17:58 DFM Benzylalcohol [100-51-6]^ 2.4 u ug/L 1 2.4 10 8123001 EPA 8270D 10/29/18 17:58 DFM Bis(2-chloroethoxy)methane [111-91-1]^ 2.4 u ug/L 1 2.4 10 8123001 EPA 8270D 10/29/18 17:58 DFM Bis(2-chloroethyl)ether [111-44-4]^ 2.6 u ug/L 1 2.6 10 8123001 EPA 8270D 10/29/18 17:58 DFM Bis(2-chloroisopropyl)ether [108-60-1]^ 2.5 u ug/L 1 2.5 10 8123001 EPA 8270D 10/29/18 17:58 DFM Bis(2-ethylhexyl)phthalate [117-81-7]^ 1.9 u ug/L 1 1.9 5.0 8123001 EPA 8270D 10/29/18 17:58 DFM Butylbenzylphthalate [85-68-7]^ 3.8 u ug/L 1 3.8 10 8123001 EPA 8270D 10/29/18 17:58 DFM Chlorobenzilate [510-15-6]^ 2.4 u ug/L 1 2.4 10 8123001 EPA 8270D 10/29/18 17:58 DFM Chrysene [218-01-9]^ 2.2 u ug/L 1 2.2 10 8123001 EPA 8270D 10/29/18 17:58 DFM Diallate [2303-16-4]^ 1.9 u ug/L 1 1.9 10 8123001 EPA 8270D 10/29/18 17:58 DFM Dibenzo(a,h)anthracene [53-70-3]^ 2.3 u ug/L 1 2.3 10 8123001 EPA 8270D 10/29/18 17:58 DFM Dibenzofuran [132-64-9]^ 2.6 u ug/L 1 2.6 10 8123001 EPA 8270D 10/29/18 17:58 DFM Diethylphthalate [84-66-2]^ 2.4 u ug/L 1 2.4 10 8123001 EPA 8270D 10/29/18 17:58 DFM Dimethoate [60-51-5]^ 2.3 u ug/L 1 2.3 10 8123001 EPA 8270D 10/29/18 17:58 DFM Dimethylphthalate [131-11-3]^ 2.5 u ug/L 1 2.5 10 8123001 EPA 8270D 10/29/18 17:58 DFM Di-n-butylphthalate [84-74-2]^ 2.8 u ug/L 1 2.8 10 8123001 EPA 8270D 10/29/18 17:58 DFM Di-n-octylphthalate [117-84-0]^ 3.1 u ug/L 1 3.1 10 8123001 EPA 8270D 10/29/18 17:58 DFM Disulfoton [298-04-4]^ 2.0 u ug/L 1 2.0 10 8123001 EPA 8270D 10/29/18 17:58 DFM Ethyl methanesulfonate [62-50-0]^ 2.2 u ug/L 1 2.2 10 8123001 EPA 8270D 10/29/18 17:58 DFM Famphur[52-85-7]^ 2.7 u ug/L 1 2.7 10 8123001 EPA 8270D 10/29/18 17:58 DFM Fluoranthene [206-44-0]^ 3.1 u ug/L 1 3.1 10 8123001 EPA 8270D 10/29/18 17:58 DFM Fluorene [86-73-7]^ 2.5 u ug/L 1 2.5 10 8123001 EPA 8270D 10/29/18 17:58 DFM Hexachlorobenzene [118-74-1]^ 2.3 u ug/L 1 2.3 10 8123001 EPA 8270D 10/29/18 17:58 DFM 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-MW13 Lab Sample ID:CB15730-01 Received: 10/18/18 12:00 Matrix: Ground Water Sampled:10/17/18 08:30 Work Order: CB15730 Project: White Street LF-Phase I,II GW/SW Sampled By: William Ballow/ Erik Vasko Semivolatile 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 Hexachlorobutadiene [87-68-3]1 2.8 u ug/L 1 2.8 10 8323001 EPA 8270D 10/29/18 17:58 DFM Hexachlorocyclopentadiene [77-47-4]^ 2.7 u ug/L 1 2.7 10 8323001 EPA 8270D 10/29/18 17:58 DFM Hexachloroethane [67-72-1]^ 2.6 u ug/L 1 2.6 10 8323001 EPA 8270D 10/29/18 17:58 DFM Hexachloropropene [1888-71-7]^ 6.8 u ug/L 1 6.8 10 8323001 EPA 8270D 10/29/18 17:58 DFM Indeno(1,2,3-cd)pyrene [193-39-5]^ 2.2 u ug/L 1 2.2 10 8323001 EPA 8270D 10/29/18 17:58 DFM Isodrin [465-73-6]^ 1.5 u ug/L 1 1.5 10 8323001 EPA 8270D 10/29/18 17:58 DFM Isophorone [78-59-1]^ 2.5 u ug/L 1 2.5 10 8323001 EPA 8270D 10/29/18 17:58 DFM Isosafrole [120-58-1]^ 2.2 u ug/L 1 2.2 10 8323001 EPA 8270D 10/29/18 17:58 DFM Kepone [143-50-0]^ 7.2 u ug/L 1 7.2 20 8323001 EPA 8270D 10/29/18 17:58 DFM Methapyrilene [91-80-5]^ 4.8 u ug/L 1 4.8 10 8323001 EPA 8270D 10/29/18 17:58 DFM QV-01 Methyl Methanesulfonate [66-27-3]^ 2.2 u ug/L 1 2.2 10 8323001 EPA 8270D 10/29/18 17:58 DFM Methyl parathion [298-00-0]^ 2.5 u ug/L 1 2.5 10 8323001 EPA 8270D 10/29/18 17:58 DFM Nitrobenzene [98-95-3]^ 2.5 u ug/L 1 2.5 10 8323001 EPA 8270D 10/29/18 17:58 DFM N-Nitrosodiethylamine [55-18-5]^ 2.1 u ug/L 1 2.1 10 8323001 EPA 8270D 10/29/18 17:58 DFM N-Nitrosodimethylamine [62-75-9]^ 1.9 u ug/L 1 1.9 10 8323001 EPA 8270D 10/29/18 17:58 DFM N-Nitrosodi-n-butylamine [924-16-3]^ 2.0 u ug/L 1 2.0 10 8323001 EPA 8270D 10/29/18 17:58 DFM N-Nitroso-di-n-propylamine [621-64-7]^ 2.3 u ug/L 1 2.3 10 8323001 EPA 8270D 10/29/18 17:58 DFM N-nitrosodiphenylamine/Diphenylamine 2.5 u ug/L 1 2.5 10 8323001 EPA 8270D 10/29/18 17:58 DFM [86-30-6/122-39-4]^ N-Nitrosomethylethylamine [10595-95-6]^ 1.9 u ug/L 1 1.9 10 8J23001 EPA 8270D 10/29/18 17:58 DFM N-Nitrosopiperidine [100-75-4]^ 2.1 u ug/L 1 2.1 10 8J23001 EPA 8270D 10/29/18 17:58 DFM N-Nitrosopyrrolidine [930-55-2]^ 1.9 u ug/L 1 1.9 10 8J23001 EPA 8270D 10/29/18 17:58 DFM 0,0,0-Triethylphosphorothioate 2.2 u ug/L 1 2.2 10 8J23001 EPA 8270D 10/29/18 17:58 DFM [126-68-1]^ o-Toluidine [95-53-4]^ 1.6 u ug/L 1 1.6 10 8J23001 EPA 8270D 10/29/18 17:58 DFM Parathion [56-38-2]^ 1.7 u ug/L 1 1.7 10 8J23001 EPA 8270D 10/29/18 17:58 DFM QV-01 p-Dimethylaminoazobenzene [60-11-7]^ 2.6 u ug/L 1 2.6 10 8J23001 EPA 8270D 10/29/18 17:58 DFM Pentachlorobenzene [608-93-5]^ 2.7 u ug/L 1 2.7 10 8J23001 EPA 8270D 10/29/18 17:58 DFM Pentachloronitrobenzene [82-68-8]^ 1.9 u ug/L 1 1.9 10 8323001 EPA 8270D 10/29/18 17:58 DFM Phenacetin [62-44-2]^ 2.7 u ug/L 1 2.7 10 8J23001 EPA 8270D 10/29/18 17:58 DFM Phenanthrene[85-01-8]^ 2.6 u ug/L 1 2.6 10 8J23001 EPA 8270D 10/29/18 17:58 DFM Phenol[108-95-2]^ 1.7 u ug/L 1 1.7 10 8J23001 EPA 8270D 10/29/18 17:58 DFM Phorate [298-02-2]^ 2.1 u ug/L 1 2.1 10 8323001 EPA 8270D 10/29/18 17:58 DFM Pronamide[23950-58-5]^ 1.7 u ug/L 1 1.7 10 8J23001 EPA 8270D 10/29/18 17:58 DFM Pyrene [129-00-0]^ 3.5 u ug/L 1 3.5 10 8J23001 EPA 8270D 10/29/18 17:58 DFM Safrole [94-59-7]^ 2.2 u ug/L 1 2.2 10 8J23001 EPA 8270D 10/29/18 17:58 DFM Thionazin [297-97-2]^ 2.3 u ug/L 1 2.3 10 8J23001 EPA 8270D 10/29/18 17:58 DFM Surrogates Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed " Notes 2,4,6-Tribromophenol 74 1 100 74 % 10-179 8J23001 EPA 8270D 1012911817:58 DFM 2-Fluorobiphenyl 38 1 50.0 77 % 10-149 8J23001 EPA 6270D 1012911817:58 DFM 2-Fluorophenol 42 1 100 42 % 10-110 8J23001 EPA 6270D 1012911817:58 DFM Nitrobenzene-d5 31 1 50.0 62 % 10-149 8J23001 EPA 6270D 1012911817:58 DFM Phenol-d5 35 1 100 35 % 10-88 8J23001 EPA 6270D 1012911817:58 DFM Terphenyl-d14 59 1 50.0 118 % 10-168 8J23001 EPA 6270D 1012911817:58 DFM 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 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-MW13 Lab Sample ID:CB15730-01 Received: 10/18/18 12:00 Matrix: Ground Water Sampled:10/17/18 08:30 Work Order: CB15730 Project: White Street LF-Phase I,II GW/SW Sampled By: William Ballow/ Erik Vasko Organochlorine Pesticides by GC ^ - ENCO Cary certified analyte [NC 591] Analyte MAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes 4,4'-DDD [72-54-8]A 0.044 u ug/L 1 0.044 0.050 8323028 EPA 8081E 10/25/18 19:11 LSK 4,4'-DDE [72-55-9]A 0.048 u ug/L 1 0.048 0.050 8323028 EPA 8081E 10/25/18 19:11 LSK 4,4'-DDT [50-29-3]A 0.049 u ug/L 1 0.049 0.050 8323028 EPA 8081E 10/25/18 19:11 LSK Aldrin [309-00-2]A 0.041 u ug/L 1 0.041 0.050 8323028 EPA 8081E 10/25/18 19:11 LSK alpha-BHC [319-84-6]A 0.036 u ug/L 1 0.036 0.050 8323028 EPA 8081E 10/25/18 19:11 LSK beta-BHC [319-85-7]A 0.041 u ug/L 1 0.041 0.050 8323028 EPA 8081E 10/25/18 19:11 LSK Chlordane (tech)[12789-03-6]A 0.37 u ug/L 1 0.37 0.50 8323028 EPA 8081E 10/25/18 19:11 LSK Chlordane -alpha [5103-71-9]A 0.048 u ug/L 1 0.048 0.050 8323028 EPA 8081E 10/25/18 19:11 LSK Chlordane -gamma [5103-74-2]A 0.042 u ug/L 1 0.042 0.050 8323028 EPA 8081E 10/25/18 19:11 LSK delta-BHC [319-86-8]A 0.048 u ug/L 1 0.048 0.050 8323028 EPA 8081E 10/25/18 19:11 LSK Dieldrin [60-57-1]A 0.045 u ug/L 1 0.045 0.050 8323028 EPA 8081E 10/25/18 19:11 LSK Endosulfan I[959-98-8]A 0.045 u ug/L 1 0.045 0.050 8323028 EPA 8081E 10/25/18 19:11 LSK Endosulfan II[33213-65-9]A 0.038 u ug/L 1 0.038 0.050 8323028 EPA 8081E 10/25/18 19:11 LSK Endosulfan sulfate [1031-07-8]A 0.032 u ug/L 1 0.032 0.050 8323028 EPA 8081E 10/25/18 19:11 LSK Endrin [72-20-8]A 0.041 u ug/L 1 0.041 0.050 8323028 EPA 8081E 10/25/18 19:11 LSK Endrin aldehyde [7421-93-4]A 0.049 u ug/L 1 0.049 0.050 8323028 EPA 8081E 10/25/18 19:11 LSK gamma-BHC [58-89-9]A 0.034 u ug/L 1 0.034 0.050 8323028 EPA 8081E 10/25/18 19:11 LSK Heptachlor[76-44-8]A 0.047 u ug/L 1 0.047 0.050 8323028 EPA 8081E 10/25/18 19:11 LSK Heptachlor epoxide [1024-57-3]A 0.037 u ug/L 1 0.037 0.050 8323028 EPA 8081E 10/25/18 19:11 LSK Methoxychlor[72-43-5]A 0.048 u ug/L 1 0.048 0.050 8323028 EPA 8081E 10/25/18 19:11 LSK Toxaphene [8001-35-2]A 0.28 u ug/L 1 0.28 1.0 8323028 EPA 8081E 10/25/18 19:11 LSK Surrogates Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes 2,4,5,E-TCMX 0.71 1 1.00 71 % 10-139 6723028 EPA 6061E 1012511819:11 LSK Decachloroblpheny/ 0.80 1 1.00 80 % 10-122 8723026 EPA 8081E 1012511819:11 LSK Polychlorinated Biphenyls by GC ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes PCB-1016/1242 [12674-11-2/53469-21-9]A 0.48 u ug/L 1 0.48 0.50 8J23030 EPA 8082A 10/25/18 19:11 LSK PCB-1221[11104-28-2]A 0.43 u ug/L 1 0.43 0.50 8J23030 EPA 8082A 10/25/18 19:11 LSK PCB-1232[11141-16-5]A 0.50 u ug/L 1 0.50 0.50 8J23030 EPA 8082A 10/25/18 19:11 LSK PCB-1248[12672-29-6]A 0.45 u ug/L 1 0.45 0.50 8J23030 EPA 8082A 10/25/18 19:11 LSK PCB-1254[11097-69-1]A 0.43 u ug/L 1 0.43 0.50 8J23030 EPA 8082A 10/25/18 19:11 LSK PCB-1260[11096-82-5]A 0.45 u ug/L 1 0.45 0.50 8J23030 EPA 8082A 10/25/18 19:11 LSK Surrogates Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed " Notes 2,4,5,6-TCMX 0.69 1 1.00 69 % 10-126 8723030 EPA 8082A 1012511819:11 LSK Decachloroblphenyl 0.79 1 1.00 79 % 10-129 8723030 EPA 6082A 1012511819:11 LSK FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 9 of 2H (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-MW13 Lab Sample ID:CB15730-01 Received: 10/18/18 12:00 Matrix: Ground Water Sampled:10/17/18 08:30 Work Order: CB15730 Project: White Street LF-Phase I,II GW/SW Sampled By: William Ballow/ Erik Vasko Metals by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte MAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed -By Notes Mercury [7439-97-6]^ 0.150 U ug/L 1 0.150 0.200 8322032 EPA 7470A 10/23/18 12:38 N M N Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte MAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes Antimony [7440-36-0]^ 1.85 U ug/L 5 1.85 5.00 8318034 EPA 6020E 10/23/18 09:58 CM K Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 8323015 EPA 6010D 10/24/18 13:27 JDH Barium [7440-39-3]A 94.5 ug/L 1 1.10 10.0 8323015 EPA 6010D 10/24/18 13:27 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 8323015 EPA 6010D 10/24/18 13:27 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 8323015 EPA 6010D 10/24/18 13:27 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 8323015 EPA 6010D 10/24/18 13:27 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 8323015 EPA 6010D 10/24/18 13:27 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 8323015 EPA 6010D 10/24/18 13:27 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 8323015 EPA 6010D 10/24/18 13:27 JDH Nickel[7440-02-0]^ 2.20 U ug/L 1 2.20 10.0 8323015 EPA 6010D 10/24/18 13:27 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 8323015 EPA 6010D 10/24/18 13:27 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 8323015 EPA 6010D 10/24/18 13:27 JDH Thallium [7440-28-0]^ 0.550 U ug/L 5 0.550 5.00 8318034 EPA 6020E 10/23/18 09:58 CM K Tin [7440-31-5]^ 2.90 U ug/L 1 2.90 10.0 8323015 EPA 6010D 10/24/18 13:27 JDH Vanadium [7440-62-2]A 4.20 J ug/L 1 1.40 10.0 8323015 EPA 6010D 10/24/18 13:27 JDH Zinc [7440-66-6]A 6.31 J ug/L 1 4.40 10.0 8323015 EPA 6010D 10/24/18 13:27 JDH Classical Chemistry Parameters ^ - ENCO Cary certified analyte [NC 591] Analyte MAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes Cyanide (total)[57-12-5]^ 4.9 U ug/L 1 4.9 10 8319010 EPA 9014 10/23/18 09:05 JLJ Sulfide [18496-25-8]^ 10 U ug/L 1 10 100 8322033 >M 4500S2 D-2011 10/22/18 17:15 JOC Volatile Organic Compounds by GCMS SIM Isotope Dilution Analyte MAS 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 8323045 EPA 8260C 10/23/18 14:49 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes Toluene-d8 5.1 1 5.00 101 % 75-125 8723045 EPA 8260C 1012311814:49 KKW Chlorinated Herbicides by GC ^ - ENCO Orlando certified analyte [NC 424] Analyte rCAS Numberl Results Flag Units DF MDL POLL Batch Method Analyzed By Notes 2,4,5-T [93-76-5]^ 0.28 U ug/L 1 0.28 0.50 8J22039 EPA 8151A 10/24/18 12:03 RGG 2,4,5-TP (Silvex) [93-72-1]^ 0.44 U ug/L 1 0.44 0.50 8J22039 EPA 8151A 10/24/18 12:03 RGG 2,4-D [94-75-7]^ 0.27 U ug/L 1 0.27 0.50 8J22039 EPA 8151A 10/24/18 12:03 RGG Dinoseb [88-85-7]^ 0.32 U ug/L 1 0.32 0.50 8J22039 EPA 8151A 10/24/18 12:03 RGG Pentachlorophenol [87-86-5]^ 0.19 U ug/L 1 0.19 0.50 8J22039 EPA 8151A 10/24/18 12:03 RGG Surrogates Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 2,4-DCAA 2.0 1 2.00 101 % 37-134 6722039 EPA 6151A 1012411812:03 RGG 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 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-SW5 Lab Sample ID:CB15730-02 Received: 10/18/18 12:00 Matrix: Surface Water Sampled:10/17/18 14:32 Work Order: CB15730 Project: White Street LF-Phase I,II GW/SW Sampled By: William Ballow/ 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 8323008 EPA 8260E 10/24/18 19:38 ref 1,1,1-Trichloroethane [71-55-6]^ 0.12 U ug/L 1 0.12 1.0 8323008 EPA 8260E 10/24/18 19:38 ref 1,1,2,2-Tetrachloroethane [79-34-5]^ 0.28 U ug/L 1 0.28 1.0 8323008 EPA 8260E 10/24/18 19:38 ref 1,1,2-Trichloroethane [79-00-5]^ 0.14 U ug/L 1 0.14 1.0 8323008 EPA 8260E 10/24/18 19:38 ref 1,1-Dichloroethane [75-34-3]1 0.13 U ug/L 1 0.13 1.0 8323008 EPA 8260E 10/24/18 19:38 ref 1,1-Dichloroethene [75-35-4]1 0.21 U ug/L 1 0.21 1.0 8323008 EPA 8260E 10/24/18 19:38 ref 1,2,3-Trichloropropane [96-18-4]1 0.23 U ug/L 1 0.23 1.0 8323008 EPA 8260E 10/24/18 19:38 ref 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 8323008 EPA 8260E 10/24/18 19:38 ref 1,2-Dibromoethane [106-93-4]1 0.66 U ug/L 1 0.66 1.0 8323008 EPA 8260E 10/24/18 19:38 ref 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 8323008 EPA 8260E 10/24/18 19:38 ref 1,2-Dichloroethane [107-06-2]1 0.21 U ug/L 1 0.21 1.0 8323008 EPA 8260E 10/24/18 19:38 ref 1,2-Dichloropropane [78-87-5]1 0.10 U ug/L 1 0.10 1.0 8323008 EPA 8260E 10/24/18 19:38 ref 1,4-Dichlorobenzene [106-46-7]1 0.19 U ug/L 1 0.19 1.0 8323008 EPA 8260E 10/24/18 19:38 ref 2-Butanone [78-93-3]^ 1.3 U ug/L 1 1.3 5.0 8323008 EPA 8260E 10/24/18 19:38 ref 2-Hexanone [591-78-6]1 0.88 U ug/L 1 0.88 5.0 8323008 EPA 8260E 10/24/18 19:38 ref 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 8323008 EPA 8260E 10/24/18 19:38 ref Acetone [67-64-1]^ 10 U ug/L 1 10 20 8323008 EPA 8260E 10/24/18 19:38 ref Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 8323008 EPA 8260E 10/24/18 19:38 ref Benzene [71-43-2]^ 0.15 U ug/L 1 0.15 1.0 8323008 EPA 8260E 10/24/18 19:38 ref Bromochloromethane [74-97-5]^ 0.48 U ug/L 1 0.48 1.0 8323008 EPA 8260E 10/24/18 19:38 ref Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 8323008 EPA 8260E 10/24/18 19:38 ref Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 8323008 EPA 8260E 10/24/18 19:38 ref Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 8323008 EPA 8260E 10/24/18 19:38 ref Carbon disulfide [75-15-0]^ 1.5 U ug/L 1 1.5 5.0 8323008 EPA 8260E 10/24/18 19:38 ref Carbon tetrachloride [56-23-5]^ 0.17 U ug/L 1 0.17 1.0 8323008 EPA 8260E 10/24/18 19:38 ref Chlorobenzene [108-90-7]^ 0.17 U ug/L 1 0.17 1.0 8323008 EPA 8260E 10/24/18 19:38 ref Chloroethane [75-00-3]^ 0.23 U ug/L 1 0.23 1.0 8323008 EPA 8260E 10/24/18 19:38 ref Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 8323008 EPA 8260E 10/24/18 19:38 ref Chloromethane [74-87-3]^ 0.13 U ug/L 1 0.13 1.0 8323008 EPA 8260E 10/24/18 19:38 ref cis- 1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 8323008 EPA 8260E 10/24/18 19:38 ref cis- 1,3-Dichloropropene [10061-01-5]^ 0.20 U ug/L 1 0.20 1.0 8323008 EPA 8260E 10/24/18 19:38 ref Dibromochloromethane [124-48-1]^ 0.17 U ug/L 1 0.17 1.0 8323008 EPA 8260E 10/24/18 19:38 ref Dibromomethane [74-95-3]^ 0.27 U ug/L 1 0.27 1.0 8323008 EPA 8260E 10/24/18 19:38 ref Ethylbenzene [100-41-4]^ 0.13 U ug/L 1 0.13 1.0 8323008 EPA 8260E 10/24/18 19:38 ref Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 8323008 EPA 8260E 10/24/18 19:38 ref Methylene chloride [75-09-2]^ 0.23 U ug/L 1 0.23 1.0 8323008 EPA 8260E 10/24/18 19:38 ref Styrene [100-42-5]^ 0.11 U ug/L 1 0.11 1.0 8323008 EPA 8260E 10/24/18 19:38 ref Tetrachloroethene [127-18-4]^ 0.17 U ug/L 1 0.17 1.0 8323008 EPA 8260E 10/24/18 19:38 ref Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 8323008 EPA 8260E 10/24/18 19:38 ref trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 8323008 EPA 8260E 10/24/18 19:38 ref trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 8323008 EPA 8260E 10/24/18 19:38 ref trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 U ug/L 1 0.70 1.0 8323008 EPA 8260E 10/24/18 19:38 ref Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 8323008 EPA 8260E 10/24/18 19:38 ref Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 8323008 EPA 8260E 10/24/18 19:38 ref Vinyl acetate [108-05-4]^ 0.95 U ug/L 1 0.95 5.0 8323008 EPA 8260E 10/24/18 19:38 ref Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 8323008 EPA 8260E 10/24/18 19:38 ref Xylenes(Total)[1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 8323008 EPA 8260E 10/24/18 19:38 ref 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-SW5 Lab Sample ID:CB15730-02 Received: 10/18/18 12:00 Matrix: Surface Water Sampled:10/17/18 14:32 Work Order: CB15730 Project: White Street LF-Phase I,II GW/SW Sampled By: William Ballow/ 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 46 1 50.0 93 % 53-136 8J23008 EPA 8260E 10124118 19:38 ref Dlbromofluoromethane 52 1 50.0 104 % 67-129 8J23008 EPA 8260E 101241181938 ref Toluene-& 52 1 50.0 103 % 59-134 8723008 EPA 8260E 101241181938 ref 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]^ 1.85 U ug/L 5 1.85 5.00 8318034 EPA 6020E 10/23/18 10:23 CM K Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 8323015 EPA 6010D 10/24/18 13:29 ]DH Barium [7440-39-3]^ 61.3 ug/L 1 1.10 10.0 8323015 EPA 6010D 10/24/18 13:29 ]DH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 8323015 EPA 6010D 10/24/18 13:29 ]DH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 8323015 EPA 6010D 10/24/18 13:29 ]DH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 8323015 EPA 6010D 10/24/18 13:29 ]DH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 8323015 EPA 6010D 10/24/18 13:29 ]DH Copper[7440-50-8]^ 3.55 J ug/L 1 1.60 10.0 8323015 EPA 6010D 10/24/18 13:29 ]DH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 8323015 EPA 6010D 10/24/18 13:29 ]DH Nickel[7440-02-0]^ 2.20 U ug/L 1 2.20 10.0 8323015 EPA 6010D 10/24/18 13:29 ]DH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 8323015 EPA 6010D 10/24/18 13:29 ]DH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 8323015 EPA 6010D 10/24/18 13:29 ]DH Thallium [7440-28-0]^ 0.550 U ug/L 5 0.550 5.00 8318034 EPA 6020E 10/23/18 10:23 CM K Vanadium [7440-62-2]^ 1.70 J ug/L 1 1.40 10.0 8323015 EPA 6010D 10/24/18 13:29 ]DH Zinc [7440-66-6]^ 18.4 ug/L 1 4.40 10.0 8323015 EPA 6010D 10/24/18 13:29 3DH Volatile Organic Compounds by GCMS SIM Isotope Dilution Analyte rCAS Numberl 1,4-Dioxane [123-91-1] Surrogates Toluene-d8 Results Flag Units DF MDL P L Batch Method Analyzed By Notes 1.5 1 ug/L 1 1.2 2.0 8323045 EPA 8260C 10/23/18 15:27 KKW Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes 5.1 1 5.00 102 % 75-125 6723045 EPA 6260C 1012311815:27 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 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 8123008 - EPA 5030E MS Blank (8123008-BLK3) Prepared: 10/23/2018 09:15 Analyzed: 10/24/2018 16:36 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 1,1-Dichloropropene 0.15 U 1.0 ug/L 1,2,3-Trichloropropane 0.23 U 1.0 ug/L 1,2,4-Trichlorobenzene 0.14 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 1,3-Dichlorobenzene 0.15 U 1.0 ug/L 1,3-Dichloropropane 0.16 U 1.0 ug/L 1,4-Dichlorobenzene 0.19 U 1.0 ug/L 2,2-Dichloropropane 0.28 U 1.0 ug/L 2-Butanone 1.3 U 5.0 ug/L 2-Hexanone 0.88 U 5.0 ug/L 3-Chloropropene 0.11 U 1.0 ug/L 4-Methyl-2-pentanone 1.1 U 5.0 ug/L Acetone 10 U 20 ug/L Acetonitrile 5.0 U 10 ug/L Acrolein 4.0 U 10 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 Chloroprene 0.64 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 Dichlorodifluoromethane 0.20 U 1.0 ug/L Ethyl Methacrylate 0.38 U 1.0 ug/L Ethylbenzene 0.13 U 1.0 ug/L Iodomethane 1.7 U 5.0 ug/L Isobutyl alcohol 11 U 50 ug/L Methacrylonitrile 4.9 U 10 ug/L Methyl Methacrylate 0.51 U 1.0 ug/L Spike Source %REC Level Result %REC Limits RPD 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 13 Of 28 QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 8.723008 - EPA 5030E MS - Continued (� �Eo www.encolabs.com Blank (8123008-BLK3) Continued Prepared: 10/23/2018 09:15 Analyzed: 10/24/2018 16:36 Analvte Result Flag POL Units Methylene chloride 0.23 U 1.0 ug/L Naphthalene 0.11 U 1.0 ug/L Propionitrile 5.0 U 10 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-Bromof/uorobenzene 48 u91L 50.0 97 53-136 Dibromof/uoromethane 52 u91L 50.0 104 67-129 Toluene-d8 53 u91L 50.0 105 59-134 LCS (8323008-BS1) Prepared: 10/23/2018 09:15 Analyzed: 10/24/2018 14:35 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 23 1.0 ug/L 20.0 116 75-133 Benzene 24 1.0 ug/L 20.0 119 80-134 Chlorobenzene 21 1.0 ug/L 20.0 106 80-120 Toluene 21 1.0 ug/L 20.0 103 71-120 Trichloroethene 21 1.0 ug/L 20.0 103 74-120 Matrix Spike (8323008-MS1) Prepared: 10/23/2018 09:15 Analyzed: 10/24/2018 15:06 Source: CB16298-09 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 110 75-133 Benzene 24 1.0 ug/L 20.0 0.15 U 122 80-134 Chlorobenzene 21 1.0 ug/L 20.0 0.17 U 106 80-120 Toluene 21 1.0 ug/L 20.0 0.14 U 106 71-120 Trichloroethene 21 1.0 ug/L 20.0 0.15 U 104 74-120 Matrix Spike Dup (8323008-MSD1) Prepared: 10/23/2018 09:15 Analyzed: 10/24/2018 15:36 Source: CB16298-09 Spike Source %REC RPD Analvte Result Flaa POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 21 1.0 ug/L 20.0 0.21 U 105 75-133 5 20 Benzene 23 1.0 ug/L 20.0 0.15 U 117 80-134 4 17 Chlorobenzene 21 1.0 ug/L 20.0 0.17 U 104 80-120 2 16 Toluene 20 1.0 ug/L 20.0 0.14 U 101 71-120 5 17 Trichloroethene 20 1.0 ug/L 20.0 0.15 U 102 74-120 2 22 Semivolatile Organic Compounds by GCMS - Quality Control Batch BJ23001 - EPA 3510C MS 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 Semivolatile Organic Compounds by GCMS - Quality Control Batch SJ23001 - EPA 3510C MS - Continued Blank (8123001-BLK3) Prepared: 10/23/2018 06:13 Analyzed: 10/29/2018 15:18 Analvte Result Flaa POL Units 1,2,4,5-Tetrachlorobenzene 3.4 U 10 ug/L 1,3,5-Trinitrobenzene 3.0 U 10 ug/L 1,3-Dinitrobenzene 2.5 U 10 ug/L 1,4-Naphthoquinone 2.5 U 10 ug/L 1,4-Phenylenediamine 4.0 U 10 ug/L 1-Naphthylamine 2.2 U 10 ug/L 2,3,4,6-Tetrachlorophenol 2.4 U 10 ug/L 2,4,5-Trichlorophenol 2.5 U 10 ug/L 2,4,6-Trichlorophenol 2.6 U 10 ug/L 2,4-Dichlorophenol 2.6 U 10 ug/L 2,4-Di methyl phenol 2.3 U 10 ug/L 2,4-Dinitrophenol 2.6 U 10 ug/L 2,4-Dinitrotoluene 2.6 U 10 ug/L 2,6-Dichlorophenol 2.0 U 10 ug/L 2,6-Dinitrotoluene 2.5 U 10 ug/L 2-Acetylaminofluorene 3.1 U 10 ug/L 2-Chloronaphthalene 2.8 U 10 ug/L 2-Chlorophenol 2.2 U 10 ug/L 2-Methyl-4,6-dinitrophenol 3.3 U 10 ug/L 2- Methyl naphthalene 2.8 U 10 ug/L 2-Methylphenol 2.0 U 10 ug/L 2-Naphthylamine 3.0 U 10 ug/L 2-Nitroaniline 2.5 U 10 ug/L 2-Nitrophenol 1.1 U 10 ug/L 3 & 4-Methylphenol 2.1 U 10 ug/L 3,3'-Dichlorobenzidine 3.5 U 10 ug/L 3,3'-Dimethylbenzidine 2.2 U 10 ug/L 3-Methylcholanthrene 1.3 U 10 ug/L 3-Nitroaniline 2.6 U 10 ug/L 4-Aminobiphenyl 3.5 U 10 ug/L 4-Bromophenyl-phenylether 2.4 U 10 ug/L 4-Chloro-3-methylphenol 2.4 U 10 ug/L 4-Chloroaniline 2.0 U 10 ug/L 4-Chlorophenyl-phenylether 2.6 U 10 ug/L 4-Nitroaniline 3.2 U 10 ug/L 4-Nitrophenol 2.8 U 10 ug/L 5-Nitro-o-toludine 3.2 U 10 ug/L 7,12-Di methyl benz(a)anth racene 1.4 U 10 ug/L Acenaphthene 2.7 U 10 ug/L Acenaphthylene 2.6 U 10 ug/L Acetophenone 2.0 U 10 ug/L Anthracene 2.4 U 10 ug/L Benzo(a)anthracene 2.4 U 10 ug/L Benzo(a)pyrene 2.2 U 10 ug/L Benzo(b)fluoranthene 2.8 U 10 ug/L Benzo(g,h,i)perylene 2.4 U 10 ug/L Benzo(k)fluoranthene 2.4 U 10 ug/L Benzyl alcohol 2.4 U 10 ug/L Bis(2-chloroethoxy)methane 2.4 U 10 ug/L Spike Source %REC Level Result %REC Limits RPD RPD Limit Notes QV-01 QV-01 QV-02 QV-01 FINAL 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 Semivolatile Organic Compounds by GCMS - Quality Control Batch SJ23001 - EPA 3510C MS - Continued Blank (8123001-BLK3) Continued Prepared: 10/23/2018 06:13 Analyzed: 10/29/2018 15:18 Analvte Result Flag POL Units Bis(2-chloroethyl)ether 2.6 U 10 ug/L Bi s(2-ch I o ro isopropyl)ether 2.5 U 10 ug/L Bis(2-ethylhexypphthalate 6.3 5.0 ug/L Butyl benzylphtha late 3.8 U 10 ug/L Chlorobenzilate 2.4 U 10 ug/L Chrysene 2.2 U 10 ug/L Diallate 1.9 U 10 ug/L Dibenzo(a,h)anthracene 2.3 U 10 ug/L Dibenzofuran 2.6 U 10 ug/L Diethylphtha late 2.4 U 10 ug/L Dimethoate 2.3 U 10 ug/L Dimethylphthalate 2.5 U 10 ug/L Di-n-butylphthalate 2.8 U 10 ug/L Di-n-octylphthalate 3.1 U 10 ug/L Disulfoton 2.0 U 10 ug/L Ethyl methanesulfonate 2.2 U 10 ug/L Famphur 2.7 U 10 ug/L Fluoranthene 3.1 U 10 ug/L Fluorene 2.5 U 10 ug/L Hexachlorobenzene 2.3 U 10 ug/L Hexachlorobutadiene 2.8 U 10 ug/L Hexachlorocyclopentadiene 2.7 U 10 ug/L Hexachloroethane 2.6 U 10 ug/L Hexachloropropene 6.8 U 10 ug/L Indeno(1,2,3-cd)pyrene 2.2 U 10 ug/L Isodrin 1.5 U 10 ug/L Isophorone 2.5 U 10 ug/L Isosafrole 2.2 U 10 ug/L Kepone 7.2 U 20 ug/L Methapyrilene 4.8 U 10 ug/L Methyl Methanesulfonate 2.2 U 10 ug/L Methyl parathion 2.5 U 10 ug/L Nitrobenzene 2.5 U 10 ug/L N-Nitrosodiethylamine 2.1 U 10 ug/L N-Nitrosodimethylamine 1.9 U 10 ug/L N-Nitrosodi-n-butylamine 2.0 U 10 ug/L N-Nitroso-di-n-propylamine 2.3 U 10 ug/L N-nitrosodiphenylamine/Diphenylamine 2.5 U 10 ug/L N-Nitrosomethylethylamine 1.9 U 10 ug/L N-Nitrosopiperidine 2.1 U 10 ug/L N-Nitrosopyrrolidine 1.9 U 10 ug/L 0,0,0-Triethyl phosphorothioate 2.2 U 10 ug/L o-Toluidine 1.6 U 10 ug/L Parathion 1.7 U 10 ug/L p-Dimethylaminoazobenzene 2.6 U 10 ug/L Pentachlorobenzene 2.7 U 10 ug/L Pentachloronitrobenzene 1.9 U 10 ug/L Phenacetin 2.7 U 10 ug/L Phenanthrene 2.6 U 10 ug/L Spike Source %REC Level Result %REC Limits RPD RPD Limit Notes 0-01 QV-01 QV-01 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 Semivolatile Organic Compounds by GCMS - Quality Control Batch SJ23001 - EPA 3510C MS - Continued Blank (8123001-BLK3) Continued Prepared: 10/23/2018 06:13 Analyzed: 10/29/2018 15:18 Analvte Result Flaq POL Units Phenol 1.7 U 10 ug/L Phorate 2.1 U 10 ug/L Pronamide 1.7 U 10 ug/L Pyrene 3.5 U 10 ug/L Safrole 2.2 U 10 ug/L Thionazin 2.3 U 10 ug/L Spike Source %REC RPD Level Result %REC Limits RPD Limit Notes 2,4,6-Tribromophenol 84 u9/L 100 84 10-179 2-Fluorobiphenyl 56 ug/L 50.0 112 10-149 2-Fluorophenol 58 u9/L 100 58 10-110 Nitrobenzene-d5 44 u9/L 50.0 86 10-149 Phenol-d5 42 u91L 100 42 10-88 Terphenyl-d14 55 u9/L 50.0 110 10-188 LCS (8323001-BS3) Prepared: 10/23/2018 06:13 Analyzed: 10/29/2018 15:50 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 2-Chlorophenol 42 10 ug/L 50.0 83 40-109 4-Chloro-3-methylphenol 45 10 ug/L 50.0 90 58-121 4-Nitrophenol 39 10 ug/L 50.0 79 33-105 Acenaphthene 51 10 ug/L 50.0 102 39-125 N-Nitroso-di-n-propylamine 47 10 ug/L 50.0 95 48-126 Phenol 26 10 ug/L 50.0 52 19-78 Pyrene 56 10 ug/L 50.0 112 44-137 2,4,6-Tribromophenol 120 u91L 100 123 10-179 2-Fluorobiphenyl 50 u91L 50.0 101 10-149 2-Fluorophenol 61 u9/L 100 61 10-110 Nitrobenzene-d5 46 u91L 50.0 91 10-149 Phenol-d5 49 u91L 100 49 10-88 Terphenyl-d14 63 u91L 50.0 127 10-188 Matrix Spike (8323001-MS1) Prepared: 10/23/2018 06:13 Analyzed: 10/29/2018 16:22 Source: CB16363-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 2-Chlorophenol 43 10 ug/L 50.0 2.2 U 86 40-109 4-Chloro-3-methylphenol 46 10 ug/L 50.0 2.4 U 91 58-121 4-Nitrophenol 40 10 ug/L 50.0 2.8 U 80 33-105 Acenaphthene 51 10 ug/L 50.0 2.7 U 101 39-125 N-Nitroso-di-n-propylamine 47 10 ug/L 50.0 2.3 U 95 48-126 Phenol 29 10 ug/L 50.0 1.7 U 58 19-78 Pyrene 50 10 ug/L 50.0 3.5 U 100 44-137 2,4,6-Tribromophenol 120 u91L 100 120 10-179 2-Fluorobiphenyl 51 u91L 50.0 101 10-149 2-Fluorophenol 66 u9/L 100 66 10-110 Nitrobenzene-d5 45 u91L 50.0 91 10-149 Phenohd5 55 u91L 100 55 10-88 Terphenyl-d14 57 u9/L 50.0 113 10-188 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 (� �Eo www.encolabs.com QUALITY CONTROL DATA Semivolatile Organic Compounds by GCMS - Quality Control Batch SJ23001 - EPA 3510C MS - Continued Matrix Spike Dup (8323001-MSDI) Prepared: 10/23/2018 06:13 Analyzed: 10/29/2018 16:53 Source: CB16363-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 2-Chlorophenol 44 10 ug/L 50.0 2.2 U 88 40-109 2 22 4-Chloro-3-methylphenol 49 10 ug/L 50.0 2.4 U 97 58-121 7 22 4-Nitrophenol 48 10 ug/L 50.0 2.8 U 96 33-105 18 27 Acenaphthene 51 10 ug/L 50.0 2.7 U 103 39-125 1 25 N-Nitroso-di-n-propylamine 48 10 ug/L 50.0 2.3 U 96 48-126 2 23 Phenol 30 10 ug/L 50.0 1.7 U 59 19-78 2 18 Pyrene 54 10 ug/L 50.0 3.5 U 108 44-137 7 24 2,4,6-Tribromophenol 130 ug/L 100 127 10-179 2-Fluorobiphenyl 50 u91L 50.0 100 10-149 2-Fluorophenol 65 u91L 100 65 10-110 Nitrobenzene-d5 46 u91L 50.0 93 10-149 Phenohd5 55 u91L 100 55 10-88 Terphenyl-d14 60 u91L 50.0 120 10-166 Organochlorine Pesticides by GC - Quality Control Batch 8J23028 - EPA 3510C Blank (8323028-BLK3) Prepared: 10/23/2018 15:39 Analyzed: 10/25/2018 16:14 Analvte Result Flaq POL Units 4,4'-DDD 0.044 U 0.050 ug/L 4,4'-DDE 0.048 U 0.050 ug/L 4,4'-DDT 0.049 U 0.050 ug/L Aldrin 0.041 U 0.050 ug/L alpha-BHC 0.036 U 0.050 ug/L beta-BHC 0.041 U 0.050 ug/L Chlordane (tech) 0.37 U 0.50 ug/L Chlordane -alpha 0.048 U 0.050 ug/L Chlordane -gamma 0.042 U 0.050 ug/L delta-BHC 0.048 U 0.050 ug/L Dieldrin 0.045 U 0.050 ug/L Endosulfan I 0.045 U 0.050 ug/L Endosulfan II 0.038 U 0.050 ug/L Endosulfan sulfate 0.032 U 0.050 ug/L Endrin 0.041 U 0.050 ug/L Endrin aldehyde 0.049 U 0.050 ug/L gamma-BHC 0.034 U 0.050 ug/L Heptachlor 0.047 U 0.050 ug/L Heptachlor epoxide 0.037 U 0.050 ug/L Methoxychlor 0.048 U 0.050 ug/L Toxaphene 0.28 U 1.0 ug/L Spike Source %REC RPD Level Result %REC Limits RPD Limit Notes 2,4,5,E-TCMX 0.60 u91L 1.00 60 10-139 Decachlorobiphenyl 0.45 ug/L 1.00 45 10-122 LCS (8323028-BSI) Prepared: 10/23/2018 15:39 Analyzed: 10/25/2018 16:28 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 4,4'-DDT 0.99 0.050 ug/L 1.00 99 37-139 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 18 Of 28 (� �Eo www.encolabs.com QUALITY CONTROL DATA Organochlorine Pesticides by GC - Quality Control Batch 8J23028 - EPA 3510C - Continued LCS (8123028-BS3) Continued Prepared: 10/23/2018 15:39 Analyzed: 10/25/2018 16:28 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Dieldrin 0.89 0.050 ug/L 1.00 89 46-132 Endrin 1.0 0.050 ug/L 1.00 103 43-133 2,4,5,E-TCMX 0.56 ug/L 1.00 56 10-139 Decachlorobipheny/ 0.92 u91L 1.00 92 10-122 Matrix Spike (8323028-MS1) Prepared: 10/23/2018 15:39 Analyzed: 10/25/2018 16:43 Source: CB16362-02 Spike Source %REC RPD Analvte Result Flaa POL Units Level Result %REC Limits RPD Limit Notes 4,4'-DDT 0.81 0.050 ug/L 1.00 0.049 U 81 37-139 Dieldrin 0.70 0.050 ug/L 1.00 0.045 U 70 46-132 Endrin 0.79 0.050 ug/L 1.00 0.041 U 79 43-133 2,4,5,E-TCMX 0.58 u91L 1.00 58 10-139 Decachlorobiphenyl 0.73 u91L 1.00 73 10-122 Matrix Spike Dup (8323028-MSDI) Prepared: 10/23/2018 15:39 Analyzed: 10/25/2018 16:58 Source: CB16362-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 4,4'-DDT 0.94 0.050 ug/L 1.00 0.049 U 94 37-139 15 26 Dieldrin 0.85 0.050 ug/L 1.00 0.045 U 85 46-132 19 27 Endrin 0.96 0.050 ug/L 1.00 0.041 U 96 43-133 19 26 2,4,5,E-TCMX 0.54 u91L 1.00 54 10-139 Decachlorobiphenyl 0.71 u91L 1.00 71 10-122 Polychlorinated Biphenyls by GC - Quality Control Batch 8J23030 - EPA 3510C Blank (8323030-BLK3) Prepared: 10/23/2018 15:52 Analyzed: 10/25/2018 17:27 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes PCB-1016/1242 0.48 U 0.50 ug/L PCB-1221 0.43 U 0.50 ug/L PCB-1232 0.50 U 0.50 ug/L PCB-1248 0.45 U 0.50 ug/L PCB-1254 0.43 U 0.50 ug/L PCB-1260 0.45 U 0.50 ug/L 2,4,5,E-TCMX 0.56 u91L 1.00 56 10-128 Decachlorobipheny/ 0.47 u91L 1.00 47 10-129 LCS (8J23030-BSI) Prepared: 10/23/2018 15:52 Analyzed: 10/25/2018 17:42 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes PCB-1016/1242 7.6 0.50 ug/L 10.0 76 43-123 PCB-1260 8.2 0.50 ug/L 10.0 82 41-125 2,4,5,E-TCMX 0.63 u91L 1.00 63 10-128 Decachlorobiphenyl 0.81 u91L 1.00 81 10-129 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 19 Of 28 (� �Eo www.encolabs.com QUALITY CONTROL DATA Polychlorinated Biphenyls by GC - Quality Control Batch SJ23030 - EPA 3510C - Continued Matrix Spike (8323030-MS3) Prepared: 10/23/2018 15:52 Analyzed: 10/25/2018 17:57 Source: CB16362-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes PCB-1016/1242 8.3 0.50 ug/L 10.0 0.48 U 83 43-123 PCB-1260 8.9 0.50 ug/L 10.0 0.45 U 89 41-125 2,4,5,E-TCMX 0.65 uylL 1.00 65 10-128 Decachlorobipheny/ 0.86 u9/L 1.00 86 10-129 Matrix Spike Dup (8323030-MSDi) Prepared: 10/23/2018 15:52 Analyzed: 10/25/2018 18:12 Source: CB16362-02 Spike Source %REC RPD Analvte Result Flao POL Units Level Result %REC Limits RPD Limit Notes PCB-1016/1242 8.8 0.50 ug/L 10.0 0.48 U 88 43-123 6 23 PCB-1260 9.4 0.50 ug/L 10.0 0.45 U 94 41-125 5 31 2,4,5,E-TCMX 0.76 u9/L 1.00 76 10-128 Decachlorobiphenyl 0.93 u91L 1.00 93 10-129 Metals by EPA 6000/7000 Series Methods - Quality Control Batch 8J22032 - EPA 245.1 Blank (8322032-BLK3) Prepared: 10/22/2018 14:54 Analyzed: 10/23/2018 12:31 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 0.150 U 0.200 ug/L Blank (8322032-BLK2) Prepared: 10/22/2018 14:54 Analyzed: 10/23/2018 12:34 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 3.00 U 4.00 ug/L LCS (8322032-BS1) Prepared: 10/22/2018 14:54 Analyzed: 10/23/2018 12:36 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 5.40 0.200 ug/L 5.00 108 80-120 Matrix Spike (8322032-MS1) Prepared: 10/22/2018 14:54 Analyzed: 10/23/2018 12:41 Source: CB35730-03 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 5.29 0.200 ug/L 5.00 0.150 U 106 75-125 Matrix Spike Dup (8322032-MSDi) Prepared: 10/22/2018 14:54 Analyzed: 10/23/2018 12:43 Source: CB15730-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 5.84 0.200 ug/L 5.00 0.150 U 117 75-125 10 25 Post Spike (8322032-PS1) Prepared: 10/22/2018 14:54 Analyzed: 10/23/2018 12:45 Source: CB15730-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 6.42 0.200 ug/L 5.00 -0.160 128 75-125 QM-08 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 2O Of 28 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch BJ18034 - EPA 3005A Blank (8318034-BLK3) Prepared: 10/18/2018 14:58 Analyzed: 10/23/2018 09:54 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 (8318034-BS3) Prepared: 10/18/2018 14:58 Analyzed: 10/23/2018 10:02 Spike Source %REC RPD Analvte Result Flaq Q Units Level Result %REC Limits RPD Limit Notes Antimony 19.9 1.00 ug/L 20.0 99 80-120 Thallium 19.3 1.00 ug/L 20.0 97 80-120 Matrix Spike (8318034-MS3) Prepared: 10/18/2018 14:58 Analyzed: 10/23/2018 10:07 Source: CB15730-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 99.5 5.00 ug/L 100 1.85 U 99 75-125 Thallium 94.0 5.00 ug/L 100 0.550 U 94 75-125 Matrix Spike Dup (8318034-MSD3) Prepared: 10/18/2018 14:58 Analyzed: 10/23/2018 10:11 Source: CB15730-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 99.5 5.00 ug/L 100 1.85 U 100 75-125 0.04 20 Thallium 95.2 5.00 ug/L 100 0.550 U 95 75-125 1 20 Post Spike (8318034-PS3) Prepared: 10/18/2018 14:58 Analyzed: 10/23/2018 10:15 Source: CB15730-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 20.3 1.00 ug/L 20.0 0.000287 102 75-125 Thallium 19.4 1.00 ug/L 20.0-0.00362 97 75-125 Batch 8123015 - EPA 3005A Blank (8323015-BLK1) Prepared: 10/23/2018 09:50 Analyzed: 10/24/2018 12:47 Analvte Result Flaq POL Units Arsenic 7.60 U 10.0 ug/L Barium 1.10 U 10.0 ug/L Beryllium 0.160 U 1.00 ug/L Cadmium 0.360 U 1.00 ug/L Chromium 1.40 U 10.0 ug/L Cobalt 1.40 U 10.0 ug/L Copper 1.60 U 10.0 ug/L Lead 3.10 U 10.0 ug/L Nickel 2.20 U 10.0 ug/L Selenium 6.20 U 10.0 ug/L Silver 1.90 U 10.0 ug/L Tin 2.90 U 10.0 ug/L Vanadium 1.40 U 10.0 ug/L Zinc 4.40 U 10.0 ug/L Spike Source %REC RPD Level Result %REC Limits RPD Limit Notes FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 21 Of 28 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 8.723015 - EPA 3005A - Continued LCS (8123015-BS3) Prepared: 10/23/2018 09:50 Analyzed: 10/24/2018 12:52 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 197 10.0 ug/L 200 98 80-120 Barium 209 10.0 ug/L 200 104 80-120 Beryllium 20.2 1.00 ug/L 20.0 101 80-120 Cadmium 20.8 1.00 ug/L 20.0 104 80-120 Chromium 199 10.0 ug/L 200 100 80-120 Cobalt 203 10.0 ug/L 200 101 80-120 Copper 195 10.0 ug/L 200 98 80-120 Lead 208 10.0 ug/L 200 104 80-120 Nickel 203 10.0 ug/L 200 101 80-120 Selenium 214 10.0 ug/L 200 107 80-120 Silver 195 10.0 ug/L 200 98 80-120 Tin 203 10.0 ug/L 200 102 80-120 Vanadium 191 10.0 ug/L 200 96 80-120 Zinc 216 10.0 ug/L 200 108 80-120 Matrix Spike (8323015-MS3) Prepared: 10/23/2018 09:50 Analyzed: 10/24/2018 12:56 Source: CB15729-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 187 10.0 ug/L 200 7.60 U 93 75-125 Barium 828 10.0 ug/L 200 660 84 75-125 Beryllium 19.1 1.00 ug/L 20.0 0.160 U 96 75-125 Cadmium 17.8 1.00 ug/L 20.0 0.360 U 89 75-125 Chromium 187 10.0 ug/L 200 2.48 92 75-125 Cobalt 193 10.0 ug/L 200 12.8 90 75-125 Copper 195 10.0 ug/L 200 1.60 U 97 75-125 Lead 188 10.0 ug/L 200 3.10 U 94 75-125 Nickel 217 10.0 ug/L 200 31.3 93 75-125 Selenium 172 10.0 ug/L 200 6.20 U 86 75-125 Silver 190 10.0 ug/L 200 1.90 U 95 75-125 Tin 184 10.0 ug/L 200 2.90 U 92 75-125 Vanadium 184 10.0 ug/L 200 1.40 U 92 75-125 Zinc 191 10.0 ug/L 200 4.40 U 96 75-125 Matrix Spike Dup (8323015-MSD1) Prepared: 10/23/2018 09:50 Analyzed: 10/24/2018 12:59 111 Source: CB15729-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 189 10.0 ug/L 200 7.60 U 95 75-125 1 20 Barium 835 10.0 ug/L 200 660 87 75-125 0.8 20 Beryllium 19.4 1.00 ug/L 20.0 0.160 U 97 75-125 1 20 Cadmium 18.0 1.00 ug/L 20.0 0.360 U 90 75-125 0.9 20 Chromium 190 10.0 ug/L 200 2.48 94 75-125 2 20 Cobalt 197 10.0 ug/L 200 12.8 92 75-125 2 20 Copper 198 10.0 ug/L 200 1.60 U 99 75-125 2 20 Lead 193 10.0 ug/L 200 3.10 U 96 75-125 2 20 Nickel 222 10.0 ug/L 200 31.3 95 75-125 2 20 Selenium 168 10.0 ug/L 200 6.20 U 84 75-125 2 20 Silver 192 10.0 ug/L 200 1.90 U 96 75-125 1 20 Tin 190 10.0 ug/L 200 2.90 U 95 75-125 3 20 Vanadium 186 10.0 ug/L 200 1.40 U 93 75-125 1 20 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 22 Of 28 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 8.723015 - EPA 3005A - Continued Matrix Spike Dup (8323015-MSD3) Continued Prepared: 10/23/2018 09:50 Analyzed: 10/24/2018 12:59 Source: CB15729-01 Spike Source %REC RPD Analvte Result Flag Q Units Level Result %REC Limits RPD Limit Notes Zinc 195 10.0 ug/L 200 4.40 U 97 75-125 2 20 Post Spike (8323015-PS1) Prepared: 10/23/2018 09:50 Analyzed: 10/24/2018 13:01 Source: CB15729-01 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Arsenic 0.190 0.0100 mg/L 0.200 -0.00593 95 80-120 Barium 0.838 0.0100 mg/L 0.200 0.660 89 80-120 Beryllium 0.0198 0.00100 mg/L 0.0200 -0.000106 99 80-120 Cadmium 0.0183 0.00100 mg/L 0.0200 -0.00111 91 80-120 Chromium 0.195 0.0100 mg/L 0.200 0.00248 96 80-120 Cobalt 0.200 0.0100 mg/L 0.200 0.0128 94 80-120 Copper 0.201 0.0100 mg/L 0.200 -0.00250 100 80-120 Lead 0.191 0.0100 mg/L 0.200 0.00139 95 80-120 Nickel 0.224 0.0100 mg/L 0.200 0.0313 96 80-120 Selenium 0.169 0.0100 mg/L 0.200 -0.0247 85 80-120 Silver 0.204 0.0100 mg/L 0.200 -0.000149 102 80-120 Tin 0.194 0.0100 mg/L 0.200 1.14E-5 97 80-120 Vanadium 0.190 0.0100 mg/L 0.200 -0.000636 95 80-120 Zinc 0.199 0.0100 mg/L 0.200 0.00331 98 80-120 Classical Chemistry Parameters - Quality Control Batch 8119010 - Same Blank (8319010-BLK1) Prepared: 10/19/2018 10:46 Analyzed: 10/23/2018 08:53 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Cyanide (total) 4.9 U 10 ug/L LCS (8319010-BS3) Prepared: 10/19/2018 10:46 Analyzed: 10/23/2018 08:55 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Cyanide (total) 150 10 ug/L 150 99 85-115 Matrix Spike (8319030-MS3) Prepared: 10/19/2018 10:46 Analyzed: 10/23/2018 08:58 Source: CB15179-05 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Cyanide (total) 30 10 ug/L 150 10 13 85-115 QM-07 Matrix Spike (8319010-MS2) Prepared: 10/19/2018 10:46 Analyzed: 10/23/2018 09:03 Source: CB15726-01 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Cyanide (total) 140 10 ug/L 150 5.4 88 85-115 Matrix Spike Dup (8319010-MSDI) Prepared: 10/19/2018 10:46 Analyzed: 10/23/2018 09:00 Source: CB15179-05 Spike Source %REC RPD Analvte Result Flag Q Units Level Result %REC Limits RPD Limit Notes Cyanide (total) 29 10 ug/L 150 10 13 85-115 3 20 QM-07 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 23 Of 28 (� �Eo www.encolabs.com QUALITY CONTROL DATA Classical Chemistry Parameters - Quality Control Batch BJ22033 - NO PREP Blank (8322033-BLK3) Prepared: 10/22/2018 16:50 Analyzed: 10/22/2018 17:15 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Sulfide 10 U 100 ug/L LCS (8322033-BS3) Prepared: 10/22/2018 16:50 Analyzed: 10/22/2018 17:15 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Sulfide 0.35 0.10 nng/L 0.401 88 80-120 Duplicate (8322033-DUPl) Prepared: 10/22/2018 16:50 Analyzed: 10/22/2018 17:15 Source: CB15730-01 Spike Source %REC RPD Analvte Result Flaa Q Units Level Result %REC Limits RPD Limit Notes Sulfide 10 U 100 ug/L 10 U 25 Matrix Spike (8322033-MS3) Prepared: 10/22/2018 16:50 Analyzed: 10/22/2018 17:15 Source: CB15730-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Sulfide 320 100 ug/L 401 10 U 80 80-120 Matrix Spike Dup (8322033-MSD3) Prepared: 10/22/2018 16:50 Analyzed: 10/22/2018 17:15 Source: CB15730-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Sulfide 320 100 ug/L 401 10 U 80 80-120 0.3 25 Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Batch 8J23045 - EPA 5030B MS Blank (8323045-BLK3) Prepared: 10/23/2018 00:00 Analyzed: 10/23/2018 11:55 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-& 5.0 ug/L 5.00 100 75-125 LCS (8323045-BSI) Prepared: 10/23/2018 00:00 Analyzed: 10/23/2018 11:20 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 28 2.0 ug/L 25.0 111 80-133 Toluene-d8 5.3 ug/L 5.00 106 75-125 Matrix Spike (8323045-MS3) Prepared: 10/23/2018 00:00 Analyzed: 10/23/2018 21:11 Source: AB07475-05 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 110 80-133 Toluene-& 5.1 ug/L 5.00 101 75-125 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 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Batch SJ23045 - EPA 5030E MS - Continued Matrix Spike Dup (8123045-MSDI) Prepared: 10/23/2018 00:00 Analyzed: 10/24/2018 12:25 Source: AB07475-05 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 1.2 U 105 80-133 4 19 Toluene-d8 5.3 u91L 5.00 106 75-125 Chlorinated Herbicides by GC - Quality Control Batch SJ22039 - EPA 3510C Blank (8322039-BLK3) Prepared: 10/22/2018 15:30 Analyzed: 10/24/2018 09:04 Spike Source %REC RPD Analvte Result Flao POL Units Level Result %REC Limits RPD Limit Notes 2,4,5-T 0.28 U 0.50 ug/L 2,4,5-TP (Silvex) 0.44 U 0.50 ug/L 2,4-D 0.27 U 0.50 ug/L Dinoseb 0.32 U 0.50 ug/L Pentachlorophenol 0.19 U 0.50 ug/L 2, 4-DCAA 2.0 u91L 2.00 96 37-134 LCS (8322039-BS3) Prepared: 10/22/2018 15:30 Analyzed: 10/24/2018 10:21 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 2,4,5-TP (Silvex) 1.5 P 0.50 ug/L 2.00 74 24-135 2,4-D 1.7 P 0.50 ug/L 2.00 84 20-134 2, 4-DCAA 1.9 u91L 2.00 96 37-134 Matrix Spike (8322039-MS3) Prepared: 10/22/2018 15:30 Analyzed: 10/24/2018 10:46 Source: AB07325-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 2,4,5-TP (Silvex) 1.3 0.50 ug/L 2.00 0.44 U 63 24-135 2,4-D 1.6 0.50 ug/L 2.00 0.27 U 80 20-134 2,4-DC4A 1.4 u91L 2.00 68 37-134 Matrix Spike Dup (8322039-MSDI) Prepared: 10/22/2018 15:30 Analyzed: 10/24/2018 11:12 Source: AB07325-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 2,4,5-TP (Silvex) 1.2 P 0.50 ug/L 2.00 0.44 U 59 24-135 19 2,4-D 1.4 P 0.50 ug/L 2.00 0.27 U 70 20-134 15 19 2, 4-DC,4A 1.8 u91L 2.00 90 37-134 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 25 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. 0-01 This compound is a common laboratory contaminant. 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). QV-01 The associated continuing calibration verification standard exhibited high bias; since the result is ND, there is no impact. QV-02 The associated continuing calibration verification standard exhibited low bias; the reported result should be considered to be a minimum estimate. FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 26 of 28 r E 0 u V) J2 M 0 tr a IZ � o � C o n r C) co m cc _e" E �+ �'y 1 J Q S-00517wS apgInS > 6H x K06 itnol OPIMAO z x y U1 'aS'gS'9d, ,R3,i3'a3'P3 agI sd'd m x i, -- UZWLL'uS'*S E a 'e5'gS'gd'!N'n3'J3'03'P3'" LS St/'6V U N xlPueddd dOLZB X cr Ql ITS 009MPOPUG03 � � 809Z9'Z x!puaddy 809Z8 O QI W IS 009Z8' l x!pueddV 809ZB a x U Zx!pLladd1H4949'ZxiPuaddvvze09 k # LG Z xlPaddtf 9 L808 x 7 V 7 i o m C T cr F o U x � N � J CL LL n o� 3 E E E z fn z y rn N ) E o r o a❑ Ely U a" a d ¢ m ia� m N Q o N c� O V CD i {7 0 7 _ � Q1 ❑ N a dA U Z o o � (6 O 0 N E d oC! uz E C� CO z n ro CS v v a �a m� a� �(� .m. E E ro � U m E r E E n -U u c4 U C a Qa O a ro C 0 U m m V',1 � Q } m m Q v Q o D E 1 \�, E E O p 6 0 m r m m a w H LmC Er GC c ¢ v U 4 � C m E m ro c 2L 0 m 10 a m a � a � c E Page 27 of 2 a� Sample Preservation Verification ENCO Cary Work Order: CB1,V30 Project: Client: Golder Associates, Inc. (GO007) Project #: Logged In: 18-Oct-18 12:33 Logged By: Preservation Check Performed By: CB15730-01 ENCO White Street LF-Phase 1,11 GW/SW 1668421.104 Rachel Ann Y njsh y DatelTime: \ � � S- _ k � ) Cont Type Pres (pH) Requirement pH Checked / _In Control PH Adjusted DateMme Adjusted Reagent UsedlComments C 250mLA (PEST) Pest pH 5-9 N I NA Y I N NA D 250mLP+HNO3 <2 bY/ N / NA Y ! NA E 250mLP+NaOH >12 YJ N / NA Y I(N4 NA F 250mLP+ZnAc+NaOH >9 Y N ! NA Y k l,)/ NA CB15730-02 Corn Type i'res (pH) Requirement pH Checked/ In Control pH Adjusted Date/Time Adjusted Reagent Used/Comments A 250mLP+HNO3 <2 Y I N I NA Y N NA Rea ent Name ID 1 2 Reaclent Name ID 3 4 Reagent Name ID 5 6 pH Strip I D: PH Strips C7J0820 Page 28 of 28 C.IelmntlPri,WVVINv_r I�OLlYGuvrpt Page 1 of 1 WORK ORDER Printed: 10/31/2018 11:35:03AM CB15730 ENCO Cary Sample Receipt Conditions Client: Golder Associates, Inc. (G0007) Lab Project Mgr: Stephanie Franz Project: White Street LF-Phase I,II GW/SW Project Number: 1668421.104 PO #: Report To: Invoice To: Golder Associates, Inc. (G0007) City of Greensboro (CI034) Dusty Reedy Richard Lovett 5B Oak Branch Drive PO Box 3136 Greensboro, NC 27407 Greensboro, NC 27402-3136 Phone: (336) 852-4903 Phone :(336) 373-4188 Fax: (336) 852-4904 Fax: Received By: Rachel Ann Yonish Logged In By: Rachel Ann Yonish Date Received: 18-Oct-18 12:00 Date Logged In: 18-Oct-18 12:33 Work Order Comments: C-02 received at 1.7°C Containers Intact Y Containers Properly Preserved Y Proper Containers Received Y All Samples in PreLog Received Y COC/Labels Agree Custody Seals Intact Y Volatile Containers Preserved Y Volatile Containers Headspace Free Y Aqueous Samples Checked for Residual Cl N Received On Ice Temperature Corrected Y Y Y Page 1 of 1 GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL GOLDER LABORATORY DATA REVIEW Page 1 of 3 Project Name: White Street Landfill — Phase I Project Reference Number: 1668421.103 Sampling Event Date: October 16 - 19, 2018 Review Date: January 17, 2019 Initials: EV Report #: C1315730 Signature: -F; vv Date: I--`/ 7-1 F QA/QC Sign Off: ; > Date: / — ( 1-15 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 X NC Appendix II NC Subtitle D Leachate List Other: 1.0 CHAIN OF CUSTODY (COC) REVIEW EV COC was properly signed by all parties. EV Correct project name and number are on the form. EV Sample receipt condition at laboratory was acceptable. EV Each sample and blank submitted for analysis appears in the report. GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL O L D E R LABORATORY DATA REVIEW Page 2 of 3 2.0 SAMPLE HOLDING TIMES EV 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 da s EPA Method 365.4 Phos horous 28 days 3.0 LABORATORY QUALITY CONTROL REVIEW EV Laboratory analyzed at least one internal blank for each method, where applicable. EV Laboratory blank is interference -free. Bis(2-ethylhexyl)phthalate, a common laboratory contaminant, was detected in the 8270D Method Blank, and the Continuing Calibration Verification sample (CCV) exhibited a high bias for 2,4-Dinitrophenol, 2- Acetylaminofluorene, 5-Nitro-o-toluidine, methapyrilene, and Parathion; however, these analytes were not detected in the associated samples, reducing the impact of the deviation. The CCV exceeded the lower control limits for 3-Nitroaniline; the reported results should be considered minimum estimates. EV Surrogate recoveries are provided for each analytical method, where applicable. EV Surrogate recoveries for each method are within the acceptable limits (i.e., at least 50% of the surrogates were within range). EV MS/MSD/LCS data results are provided for each analytical method. EV 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 recovery of Mercury was outside of control limits for the Post Spike sample. The QC batch was approved based on acceptable LCS recovery of this element. The spike recovery of Cyanide was outside of control limits for the MS and MSD samples. The QC batch was approved based on acceptable LCS recovery of this analyte. 4.0 ANALYTE LISTS/METHODS EV The proper number of constituents are present for each analyte list as identified above (including detects where applicable). GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL G OLDER LABORATORY DATA REVIEW Page 3 of 3, EV Proper EPA SW-846 analytical methods were used for analysis. 5.0 DATA REPORTING EV All analytical reporting associated with the event was performed by the contracted lab EV 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. EV 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. EV The report provides the reporting limit for each constituent. EV The results were reported at or below their proper reporting limits (i.e. at or below standards at MDLs). 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. EV No inorganic or organic constituents were reported above their respective NC 2L Drinking Water Standards or Interim Maximum Allowable Concentrations (IMACs) or surface water standards in wells or field/equipment/trip blanks or above applicable Surface Water Standards for surface water points. ➢ Cobalt (IMAC = 0.3 ug/L) • MW-13 @ 4.20 ug/L (J) ➢ Copper (Chronic SW Std = 2.7, acute = 3.6 ug/L) • SW-5 @ 3.55 ug/L (J) EV 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). ➢ 1,4 Dioxane was detected for the first time in SW-5. However, this was the first time this surface water was analyzed for this constituent. EV 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, November 5, 2018 Golder Associates, Inc. (GO007) Attn: Dusty Reedy 5B Oak Branch Drive Greensboro, NC 27407 RE: Laboratory Results for Project Number: 1668421.104, Project Name/Desc: White Street LF-Phase I ENCO Workorder(s): CB15729 Dear Dusty Reedy, Enclosed is a copy of your laboratory report for test samples received by our laboratory on Monday, October 22, 2018. 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 22 PROJECT NARRATIVE Date: 05 November 2018 Client: Golder Associates, Inc. (G0007) Project: White Street LF-Phase I Lab ID: CB15729 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 LCS/LCSD were analyzed in place of MS/MSD in the 8260C SIM ID analysis for 1,4-Dioxane. Quality Control Remarks No Comments Other Comments All samples received under this work order arrived in acceptable conditions. The samples were not checked for residual chlorine, as it is not required. 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 22 (� �Eo www.encolabs.com SAMPLE SUMMARY/LABORATORY CHRONICLE Client ID: 4103-IS Lab ID: CB15729-01 Sampled: 10/19/18 09:13 Received: 10/22/18 10:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 04/17/19 10/23/18 09:50 10/24/18 12:49 EPA 7470A EPA 7470A 11/16/18 11/01/18 12:42 11/02/18 13:30 EPA 8260E EPA 503013_MS 11/02/18 10/25/18 10:03 10/25/18 21:10 Client ID: 4103-I1 Lab ID: CB15729-01RE1 Sampled: 10/19/18 09:13 Received: 10/22/18 10:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260C EPA 503013_MS 11/02/18 11/02/18 00:00 11/02/18 10:41 Client ID: 4103-I2 Lab ID: CB15729-02 Sampled: 10/19/18 14:42 Received: 10/22/18 10:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 04/17/19 10/23/18 09:50 10/24/18 13:12 EPA 7470A EPA 7470A 11/16/18 11/01/18 12:42 11/02/18 13:48 EPA 8260B EPA 503013_MS 11/02/18 10/25/18 10:03 10/25/18 21:40 Client ID: 4103-I2 Lab ID: CB15729-02RE1 Sampled: 10/19/18 14:42 Received: 10/22/18 10:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260C EPA 5030B_MS 11/02/18 11/02/18 00:00 11/02/18 11:15 Client ID: 4103-I3 Lab ID: CB15729-03 Sampled: 10/18/18 17:40 Received: 10/22/18 10:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 04/16/19 10/23/18 09:50 10/24/18 13:22 EPA 7470A EPA 7470A 11/15/18 11/01/18 12:42 11/02/18 13:51 EPA 8260B EPA 503013_MS 11/01/18 10/25/18 10:03 10/25/18 22:10 Client ID: 4103-I3 Lab ID: CB15729-03RE1 Sampled: 10/18/18 17:40 Received: 10/22/18 10:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260C EPA 5030B_MS 11/01/18 11/01/18 00:00 11/01/18 13:22 Client ID: 4103-I4 Lab ID: CB15729-04 Sampled: 10/19/18 14:53 Received: 10/22/18 10:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 04/17/19 10/23/18 09:50 10/24/18 13:24 EPA 7470A EPA 7470A 11/16/18 11/01/18 12:42 11/02/18 13:53 EPA 8260E EPA 503013_MS 11/02/18 10/25/18 10:03 10/25/18 22:41 EPA 8260C EPA 503013_MS 11/02/18 11/01/18 00:00 11/01/18 17:33 Client ID: 4303-Trip Blank I Lab ID: CB15729-05 Sampled: 10/18/18 17:40 Received: 10/22/18 10:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260E EPA 503013_MS 11/01/18 10/25/18 10:03 10/25/18 23:11 EPA 8260C EPA 503013_MS 11/01/18 11/01/18 00:00 11/01/18 12:10 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 3 Of 22 (� �Eo www.encolabs.com SAMPLE DETECTION SUMMARY Client ID: 4103-IS Lab ID: CB15729-01 Anala Results Flag MDL POLL Units Method Notes 1,1-Dichloroethane 0.51 1 0.13 1.0 ug/L EPA 8260B 1,4-Dichlorobenzene 6.4 0.19 1.0 ug/L EPA 8260B Barium - Total 660 1.10 10.0 ug/L EPA 6010D Benzene 2.9 0.15 1.0 ug/L EPA 8260B Chlorobenzene 13 0.17 1.0 ug/L EPA 8260B Chromium - Total 2.48 1 1.40 10.0 ug/L EPA 6010D Client ID: 4103-IS Lab ID: CB15729-01RE1 Anala Results Flag MDL POLL Units Method Notes 1,4-Dioxane 240 D 12 20 ug/L EPA 8260C Client ID: 4103-I2 Lab ID: CB15729-02 Anala Results Flag MDL POLL Units Method Notes 1,2-Dichlorobenzene 1.7 0.19 1.0 ug/L EPA 8260B Barium - Total 499 1.10 10.0 ug/L EPA 6010D Chlorobenzene 6.3 0.17 1.0 ug/L EPA 8260B Chromium - Total 5.02 1 1.40 10.0 ug/L EPA 6010D Client ID: 4103-I2 Lab ID: CB15729-02RE1 Anala Results Flag MDL POLL Units Method Notes 1,4-Dioxane 250 D 12 20 ug/L EPA 8260C Client ID: 4103-I3 Lab ID: CB15729-03 Anala Results Flag MDL POLL Units Method Notes 1,1-Dichloroethane 1.8 0.13 1.0 ug/L EPA 8260B 1,4-Dichlorobenzene 2.2 0.19 1.0 ug/L EPA 8260B Barium - Total 136 1.10 10.0 ug/L EPA 6010D Chlorobenzene 3.6 0.17 1.0 ug/L EPA 8260B Chromium - Total 5.34 1 1.40 10.0 ug/L EPA 6010D Client ID: 4103-I3 Lab ID: CB15729-03RE1 Anala Results Flag MDL POLL Units Method Notes 1,4-Dioxane 300 D 12 20 ug/L EPA 8260C Client ID: 4103-I4 Lab ID: CB15729-04 Anala Results Flag MDL POLL Units Method Notes 1,4-Dichlorobenzene 4.4 0.19 1.0 ug/L EPA 8260B 1,4-Dioxane 60 1.2 2.0 ug/L EPA 8260C Barium - Total 546 1.10 10.0 ug/L EPA 6010D Chlorobenzene 4.7 0.17 1.0 ug/L EPA 8260B Chromium - Total 2.87 1 1.40 10.0 ug/L EPA 6010D FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 4 Of 22 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4103-Il Lab Sample ID:CB15729-01 Received: 10/22/18 10:00 Matrix: Ground Water Sampled:10/19/18 09:13 Work Order: CB15729 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 Flao Units DF MDL Q Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/25/18 21:10 ref 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 8325019 EPA 8260B 10/25/18 21:10 ref 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 8325019 EPA 8260B 10/25/18 21:10 ref 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 8325019 EPA 8260B 10/25/18 21:10 ref 1,1-Dichloroethane [75-34-3]A 0.51 1 ug/L 1 0.13 1.0 8125019 EPA 8260B 10/25/18 21:10 ref 1,1-Dichloroethene [75-35-4]A 0.21 U ug/L 1 0.21 1.0 8325019 EPA 8260B 10/25/18 21:10 ref 1,2,3-Trichloropropane [96-18-4]A 0.23 U ug/L 1 0.23 1.0 8325019 EPA 8260B 10/25/18 21:10 ref 1,2-Dibromo-3-chloropropane [96-12-8]A 0.48 U ug/L 1 0.48 1.0 8325019 EPA 8260B 10/25/18 21:10 ref 1,2-Dibromoethane [106-93-4]A 0.66 U ug/L 1 0.66 1.0 8325019 EPA 8260B 10/25/18 21:10 ref 1,2-Dichlorobenzene [95-50-1]A 0.19 U ug/L 1 0.19 1.0 8325019 EPA 8260B 10/25/18 21:10 ref 1,2-Dichloroethane [107-06-2]A 0.21 U ug/L 1 0.21 1.0 8325019 EPA 8260B 10/25/18 21:10 ref 1,2-Dichloropropane [78-87-5]A 0.10 U ug/L 1 0.10 1.0 8325019 EPA 8260B 10/25/18 21:10 ref 1,4-Dichlorobenzene [106-46-7]A 6.4 ug/L 1 0.19 1.0 8125019 EPA 8260B 10/25/18 21:10 ref 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 8325019 EPA 8260B 10/25/18 21:10 ref 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 8325019 EPA 8260B 10/25/18 21:10 ref 4-Methyl-2-pentanone [108-10-1]A 1.1 U ug/L 1 1.1 5.0 8325019 EPA 8260B 10/25/18 21:10 ref Acetone [67-64-1]A 10 U ug/L 1 10 20 8325019 EPA 8260B 10/25/18 21:10 ref Acrylonitrile [107-13-1]A 3.5 U ug/L 1 3.5 10 8325019 EPA 8260B 10/25/18 21:10 ref Benzene [71-43-2]A 2.9 ug/L 1 0.15 1.0 8125019 EPA 8260B 10/25/18 21:10 ref Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 8325019 EPA 8260B 10/25/18 21:10 ref Bromodichloromethane [75-27-4]A 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/25/18 21:10 ref Bromoform [75-25-2]A 0.22 U ug/L 1 0.22 1.0 8325019 EPA 8260B 10/25/18 21:10 ref Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 8325019 EPA 8260B 10/25/18 21:10 ref Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 8325019 EPA 8260B 10/25/18 21:10 ref Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/25/18 21:10 ref Chlorobenzene [308-90-7]A 13 ug/L 1 0.17 1.0 8125019 EPA 8260B 10/25/18 21:10 ref Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 8325019 EPA 8260B 10/25/18 21:10 ref Chloroform [67-66-3]A 0.18 U ug/L 1 0.18 1.0 8325019 EPA 8260B 10/25/18 21:10 ref Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 8325019 EPA 8260B 10/25/18 21:10 ref cis-1,2-Dichloroethene [156-59-2]A 0.15 U ug/L 1 0.15 1.0 8325019 EPA 8260B 10/25/18 21:10 ref cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 8325019 EPA 8260B 10/25/18 21:10 ref Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/25/18 21:10 ref Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 8325019 EPA 8260B 10/25/18 21:10 ref Ethylbenzene [100-41-4]A 0.13 U ug/L 1 0.13 1.0 8325019 EPA 8260B 10/25/18 21:10 ref Iodomethane [74-88-4]A 1.7 U ug/L 1 1.7 5.0 8325019 EPA 8260B 10/25/18 21:10 ref Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 8325019 EPA 8260B 10/25/18 21:10 ref Styrene [100-42-5]A 0.11 U ug/L 1 0.11 1.0 8325019 EPA 8260B 10/25/18 21:10 ref Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/25/18 21:10 ref Toluene [108-88-3]A 0.14 U ug/L 1 0.14 1.0 8325019 EPA 8260B 10/25/18 21:10 ref trans-1,2-Dichloroethene [156-60-5]A 0.21 U ug/L 1 0.21 1.0 8325019 EPA 8260B 10/25/18 21:10 ref trans-1,3-Dichloropropene [10061-02-6]A 0.15 U ug/L 1 0.15 1.0 8325019 EPA 8260B 10/25/18 21:10 ref trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 8325019 EPA 8260B 10/25/18 21:10 ref Trichloroethene [79-01-6]A 0.15 U ug/L 1 0.15 1.0 8325019 EPA 8260B 10/25/18 21:10 ref Trichlorofluoromethane [75-69-4]A 0.24 U ug/L 1 0.24 1.0 8325019 EPA 8260B 10/25/18 21:10 ref Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 8325019 EPA 8260B 10/25/18 21:10 ref Vinyl chloride [75-01-4]A 0.32 U ug/L 1 0.32 1.0 8325019 EPA 8260B 10/25/18 21:10 ref Xylenes (Total) [1330-20-7]A 0.45 U ug/L 1 0.45 3.0 8325019 EPA 8260B 10/25/18 21:10 ref FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 5 of 22 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-Il Lab Sample ID:CB15729-01 Received: 10/22/18 10:00 Matrix: Ground Water Sampled:10/19/18 09:13 Work Order: CB15729 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 40 1 50.0 80 % 53-136 8J25019 EPA 8260E 10125118 21:10 ref Dlbromofluoromethane 46 1 50.0 91 % 67-129 8J25019 EPA 8260E 10125118 21:10 ref Toluene-& 43 1 50.0 86 % 59-134 8J25019 EPA 8260E 10125118 21:10 ref 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 8KO1028 EPA 7470A 11/02/18 13:30 N M N 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 8323015 EPA 6010D 10/24/18 12:49 ]DH Barium [7440-39-3]^ 660 ug/L 1 1.10 10.0 8323015 EPA 6010D 10/24/18 12:49 ]DH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 8323015 EPA 6010D 10/24/18 12:49 ]DH Chromium [7440-47-3]^ 2.48 J ug/L 1 1.40 10.0 8323015 EPA 6010D 10/24/18 12:49 ]DH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 8323015 EPA 6010D 10/24/18 12:49 ]DH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 8323015 EPA 6010D 10/24/18 12:49 ]DH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 8323015 EPA 6010D 10/24/18 12:49 ]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 240 D ug/L 10 12 20 8KO2017 EPA 8260C 11/02/18 10:41 KKW Results DF Snike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes 5.0 1 5.00 100 % 75-125 SK02017 EPA 6260C 1110211810:41 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 22 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4103-I2 Lab Sample ID:CB15729-02 Received: 10/22/18 10:00 Matrix: Ground Water Sampled:10/19/18 14:42 Work Order: CB15729 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 Flao Units DF MDL Q Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/25/18 21:40 ref 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 8325019 EPA 8260B 10/25/18 21:40 ref 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 8325019 EPA 8260B 10/25/18 21:40 ref 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 8325019 EPA 8260B 10/25/18 21:40 ref 1,1-Dichloroethane [75-34-3]A 0.13 U ug/L 1 0.13 1.0 8325019 EPA 8260B 10/25/18 21:40 ref 1,1-Dichloroethene [75-35-4]A 0.21 U ug/L 1 0.21 1.0 8325019 EPA 8260B 10/25/18 21:40 ref 1,2,3-Trichloropropane [96-18-4]A 0.23 U ug/L 1 0.23 1.0 8325019 EPA 8260B 10/25/18 21:40 ref 1,2-Dibromo-3-chloropropane [96-12-8]A 0.48 U ug/L 1 0.48 1.0 8325019 EPA 8260B 10/25/18 21:40 ref 1,2-Dibromoethane [106-93-4]A 0.66 U ug/L 1 0.66 1.0 8325019 EPA 8260B 10/25/18 21:40 ref 1,2-Dichlorobenzene [95-50-1]A 1.7 ug/L 1 0.19 1.0 8125019 EPA 8260B 10/25/18 21:40 ref 1,2-Dichloroethane [107-06-2]A 0.21 U ug/L 1 0.21 1.0 8325019 EPA 8260B 10/25/18 21:40 ref 1,2-Dichloropropane [78-87-5]A 0.10 U ug/L 1 0.10 1.0 8325019 EPA 8260B 10/25/18 21:40 ref 1,4-Dichlorobenzene [106-46-7]A 0.19 U ug/L 1 0.19 1.0 8325019 EPA 8260B 10/25/18 21:40 ref 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 8325019 EPA 8260B 10/25/18 21:40 ref 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 8325019 EPA 8260B 10/25/18 21:40 ref 4-Methyl-2-pentanone [108-10-1]A 1.1 U ug/L 1 1.1 5.0 8325019 EPA 8260B 10/25/18 21:40 ref Acetone [67-64-1]A 10 U ug/L 1 10 20 8325019 EPA 8260B 10/25/18 21:40 ref Acrylonitrile [107-13-1]A 3.5 U ug/L 1 3.5 10 8325019 EPA 8260B 10/25/18 21:40 ref Benzene[71-43-2]A 0.15 U ug/L 1 0.15 1.0 8325019 EPA 8260B 10/25/18 21:40 ref Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 8325019 EPA 8260B 10/25/18 21:40 ref Bromodichloromethane [75-27-4]A 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/25/18 21:40 ref Bromoform [75-25-2]A 0.22 U ug/L 1 0.22 1.0 8325019 EPA 8260B 10/25/18 21:40 ref Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 8325019 EPA 8260B 10/25/18 21:40 ref Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 8325019 EPA 8260B 10/25/18 21:40 ref Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/25/18 21:40 ref Chlorobenzene [308-90-7]A 6.3 ug/L 1 0.17 1.0 8125019 EPA 8260B 10/25/18 21:40 ref Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 8325019 EPA 8260B 10/25/18 21:40 ref Chloroform [67-66-3]A 0.18 U ug/L 1 0.18 1.0 8325019 EPA 8260B 10/25/18 21:40 ref Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 8325019 EPA 8260B 10/25/18 21:40 ref cis-1,2-Dichloroethene [156-59-2]A 0.15 U ug/L 1 0.15 1.0 8325019 EPA 8260B 10/25/18 21:40 ref cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 8325019 EPA 8260B 10/25/18 21:40 ref Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/25/18 21:40 ref Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 8325019 EPA 8260B 10/25/18 21:40 ref Ethylbenzene [100-41-4]A 0.13 U ug/L 1 0.13 1.0 8325019 EPA 8260B 10/25/18 21:40 ref Iodomethane [74-88-4]A 1.7 U ug/L 1 1.7 5.0 8325019 EPA 8260B 10/25/18 21:40 ref Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 8325019 EPA 8260B 10/25/18 21:40 ref Styrene [100-42-5]A 0.11 U ug/L 1 0.11 1.0 8325019 EPA 8260B 10/25/18 21:40 ref Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/25/18 21:40 ref Toluene [108-88-3]A 0.14 U ug/L 1 0.14 1.0 8325019 EPA 8260B 10/25/18 21:40 ref trans-1,2-Dichloroethene [156-60-5]A 0.21 U ug/L 1 0.21 1.0 8325019 EPA 8260B 10/25/18 21:40 ref trans-1,3-Dichloropropene [10061-02-6]A 0.15 U ug/L 1 0.15 1.0 8325019 EPA 8260B 10/25/18 21:40 ref trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 8325019 EPA 8260B 10/25/18 21:40 ref Trichloroethene [79-01-6]A 0.15 U ug/L 1 0.15 1.0 8325019 EPA 8260B 10/25/18 21:40 ref Trichlorofluoromethane [75-69-4]A 0.24 U ug/L 1 0.24 1.0 8325019 EPA 8260B 10/25/18 21:40 ref Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 8325019 EPA 8260B 10/25/18 21:40 ref Vinyl chloride [75-01-4]A 0.32 U ug/L 1 0.32 1.0 8325019 EPA 8260B 10/25/18 21:40 ref Xylenes (Total) [1330-20-7]A 0.45 U ug/L 1 0.45 3.0 8325019 EPA 8260B 10/25/18 21:40 ref FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 7 of 22 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-I2 Lab Sample ID:CB15729-02 Received: 10/22/18 10:00 Matrix: Ground Water Sampled:10/19/18 14:42 Work Order: CB15729 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 39 1 50.0 78 % 53-136 8J25019 EPA 8260E 10125118 21:40 ref Dlbromofluoromethane 46 1 50.0 92 % 67-129 8J25019 EPA 8260E 10125118 21:40 ref Toluene-& 43 1 50.0 87 % 59-134 8J25019 EPA 8260E 10125118 21:40 ref 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 8KO1028 EPA 7470A 11/02/18 13:48 N M N 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 8323015 EPA 6010D 10/24/18 13:12 ]DH Barium [7440-39-3]^ 499 ug/L 1 1.10 10.0 8323015 EPA 6010D 10/24/18 13:12 ]DH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 8323015 EPA 6010D 10/24/18 13:12 ]DH Chromium [7440-47-3]^ 5.02 J ug/L 1 1.40 10.0 8323015 EPA 6010D 10/24/18 13:12 ]DH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 8323015 EPA 6010D 10/24/18 13:12 ]DH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 8323015 EPA 6010D 10/24/18 13:12 ]DH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 8323015 EPA 6010D 10/24/18 13:12 ]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 250 D ug/L 10 12 20 8KO2017 EPA 8260C 11/02/18 11:15 KKW Results DF Snike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes 4.8 1 5.00 96 % 75-125 SK02017 EPA 6260C 1110211811:15 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 22 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4103-I3 Lab Sample ID:CB15729-03 Received: 10/22/18 10:00 Matrix: Ground Water Sampled:10/18/18 17:40 Work Order: CB15729 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 Flao Units DF MDL Q Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/25/18 22:10 ref 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 8325019 EPA 8260B 10/25/18 22:10 ref 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 8325019 EPA 8260B 10/25/18 22:10 ref 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 8325019 EPA 8260B 10/25/18 22:10 ref 1,1-Dichloroethane [75-34-3]A 1.8 ug/L 1 0.13 1.0 8125019 EPA 8260B 10/25/18 22:10 ref 1,1-Dichloroethene [75-35-4]A 0.21 U ug/L 1 0.21 1.0 8325019 EPA 8260B 10/25/18 22:10 ref 1,2,3-Trichloropropane [96-18-4]A 0.23 U ug/L 1 0.23 1.0 8325019 EPA 8260B 10/25/18 22:10 ref 1,2-Dibromo-3-chloropropane [96-12-8]A 0.48 U ug/L 1 0.48 1.0 8325019 EPA 8260B 10/25/18 22:10 ref 1,2-Dibromoethane [106-93-4]A 0.66 U ug/L 1 0.66 1.0 8325019 EPA 8260B 10/25/18 22:10 ref 1,2-Dichlorobenzene [95-50-1]A 0.19 U ug/L 1 0.19 1.0 8325019 EPA 8260B 10/25/18 22:10 ref 1,2-Dichloroethane [107-06-2]A 0.21 U ug/L 1 0.21 1.0 8325019 EPA 8260B 10/25/18 22:10 ref 1,2-Dichloropropane [78-87-5]A 0.10 U ug/L 1 0.10 1.0 8325019 EPA 8260B 10/25/18 22:10 ref 1,4-Dichlorobenzene [106-46-7]A 2.2 ug/L 1 0.19 1.0 8125019 EPA 8260B 10/25/18 22:10 ref 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 8325019 EPA 8260B 10/25/18 22:10 ref 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 8325019 EPA 8260B 10/25/18 22:10 ref 4-Methyl-2-pentanone [108-10-1]A 1.1 U ug/L 1 1.1 5.0 8325019 EPA 8260B 10/25/18 22:10 ref Acetone [67-64-1]A 10 U ug/L 1 10 20 8325019 EPA 8260B 10/25/18 22:10 ref Acrylonitrile [107-13-1]A 3.5 U ug/L 1 3.5 10 8325019 EPA 8260B 10/25/18 22:10 ref Benzene [71-43-2]A 0.15 U ug/L 1 0.15 1.0 8325019 EPA 8260B 10/25/18 22:10 ref Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 8325019 EPA 8260B 10/25/18 22:10 ref Bromodichloromethane [75-27-4]A 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/25/18 22:10 ref Bromoform [75-25-2]A 0.22 U ug/L 1 0.22 1.0 8325019 EPA 8260B 10/25/18 22:10 ref Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 8325019 EPA 8260B 10/25/18 22:10 ref Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 8325019 EPA 8260B 10/25/18 22:10 ref Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/25/18 22:10 ref Chlorobenzene [308-90-7]A 3.6 ug/L 1 0.17 1.0 8125019 EPA 8260B 10/25/18 22:10 ref Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 8325019 EPA 8260B 10/25/18 22:10 ref Chloroform [67-66-3]A 0.18 U ug/L 1 0.18 1.0 8325019 EPA 8260B 10/25/18 22:10 ref Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 8325019 EPA 8260B 10/25/18 22:10 ref cis-1,2-Dichloroethene [156-59-2]A 0.15 U ug/L 1 0.15 1.0 8325019 EPA 8260B 10/25/18 22:10 ref cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 8325019 EPA 8260B 10/25/18 22:10 ref Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/25/18 22:10 ref Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 8325019 EPA 8260B 10/25/18 22:10 ref Ethylbenzene [100-41-4]A 0.13 U ug/L 1 0.13 1.0 8325019 EPA 8260B 10/25/18 22:10 ref Iodomethane [74-88-4]A 1.7 U ug/L 1 1.7 5.0 8325019 EPA 8260B 10/25/18 22:10 ref Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 8325019 EPA 8260B 10/25/18 22:10 ref Styrene [100-42-5]A 0.11 U ug/L 1 0.11 1.0 8325019 EPA 8260B 10/25/18 22:10 ref Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/25/18 22:10 ref Toluene [108-88-3]A 0.14 U ug/L 1 0.14 1.0 8325019 EPA 8260B 10/25/18 22:10 ref trans-1,2-Dichloroethene [156-60-5]A 0.21 U ug/L 1 0.21 1.0 8325019 EPA 8260B 10/25/18 22:10 ref trans-1,3-Dichloropropene [10061-02-6]A 0.15 U ug/L 1 0.15 1.0 8325019 EPA 8260B 10/25/18 22:10 ref trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 8325019 EPA 8260B 10/25/18 22:10 ref Trichloroethene [79-01-6]A 0.15 U ug/L 1 0.15 1.0 8325019 EPA 8260B 10/25/18 22:10 ref Trichlorofluoromethane [75-69-4]A 0.24 U ug/L 1 0.24 1.0 8325019 EPA 8260B 10/25/18 22:10 ref Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 8325019 EPA 8260B 10/25/18 22:10 ref Vinyl chloride [75-01-4]A 0.32 U ug/L 1 0.32 1.0 8325019 EPA 8260B 10/25/18 22:10 ref Xylenes (Total) [1330-20-7]A 0.45 U ug/L 1 0.45 3.0 8325019 EPA 8260B 10/25/18 22:10 ref FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 9 of 22 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-I3 Lab Sample ID:CB15729-03 Received: 10/22/18 10:00 Matrix: Ground Water Sampled:10/18/18 17:40 Work Order: CB15729 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 39 1 50.0 79 % 53-136 8J25019 EPA 8260E 10125118 22:10 ref Dlbromofluoromethane 45 1 50.0 90 % 67-129 8J25019 EPA 8260E 10125118 22:10 ref Toluene-& 44 1 50.0 87 % 59-134 8J25019 EPA 8260E 10125118 22:10 ref 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 8KO1028 EPA 7470A 11/02/18 13:51 NMN 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 8323015 EPA 6010D 10/24/18 13:22 ]DH Barium [7440-39-3]^ 136 ug/L 1 1.10 10.0 8323015 EPA 6010D 10/24/18 13:22 ]DH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 8323015 EPA 6010D 10/24/18 13:22 ]DH Chromium [7440-47-3]^ 5.34 J ug/L 1 1.40 10.0 8323015 EPA 6010D 10/24/18 13:22 ]DH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 8323015 EPA 6010D 10/24/18 13:22 ]DH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 8323015 EPA 6010D 10/24/18 13:22 ]DH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 8323015 EPA 6010D 10/24/18 13:22 ]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 300 D ug/L 10 12 20 8KO1028 EPA 8260C 11/01/18 13:22 KKW Results DF Snike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes 5.2 1 5.00 103 % 75-125 SK01028 EPA 6260C 1110111813:22 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 22 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4103-I4 Lab Sample ID:CB15729-04 Received: 10/22/18 10:00 Matrix: Ground Water Sampled:10/19/18 14:53 Work Order: CB15729 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 Flao Units DF MDL Q Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/25/18 22:41 ref 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 8325019 EPA 8260B 10/25/18 22:41 ref 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 8325019 EPA 8260B 10/25/18 22:41 ref 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 8325019 EPA 8260B 10/25/18 22:41 ref 1,1-Dichloroethane [75-34-3]A 0.13 U ug/L 1 0.13 1.0 8325019 EPA 8260B 10/25/18 22:41 ref 1,1-Dichloroethene [75-35-4]A 0.21 U ug/L 1 0.21 1.0 8325019 EPA 8260B 10/25/18 22:41 ref 1,2,3-Trichloropropane [96-18-4]A 0.23 U ug/L 1 0.23 1.0 8325019 EPA 8260B 10/25/18 22:41 ref 1,2-Dibromo-3-chloropropane [96-12-8]A 0.48 U ug/L 1 0.48 1.0 8325019 EPA 8260B 10/25/18 22:41 ref 1,2-Dibromoethane [106-93-4]A 0.66 U ug/L 1 0.66 1.0 8325019 EPA 8260B 10/25/18 22:41 ref 1,2-Dichlorobenzene [95-50-1]A 0.19 U ug/L 1 0.19 1.0 8325019 EPA 8260B 10/25/18 22:41 ref 1,2-Dichloroethane [107-06-2]A 0.21 U ug/L 1 0.21 1.0 8325019 EPA 8260B 10/25/18 22:41 ref 1,2-Dichloropropane [78-87-5]A 0.10 U ug/L 1 0.10 1.0 8325019 EPA 8260B 10/25/18 22:41 ref 1,4-Dichlorobenzene [106-46-7]A 4.4 ug/L 1 0.19 1.0 8125019 EPA 8260B 10/25/18 22:41 ref 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 8325019 EPA 8260B 10/25/18 22:41 ref 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 8325019 EPA 8260B 10/25/18 22:41 ref 4-Methyl-2-pentanone [108-10-1]A 1.1 U ug/L 1 1.1 5.0 8325019 EPA 8260B 10/25/18 22:41 ref Acetone [67-64-1]A 10 U ug/L 1 10 20 8325019 EPA 8260B 10/25/18 22:41 ref Acrylonitrile [107-13-1]A 3.5 U ug/L 1 3.5 10 8325019 EPA 8260B 10/25/18 22:41 ref Benzene[71-43-2]A 0.15 U ug/L 1 0.15 1.0 8325019 EPA 8260B 10/25/18 22:41 ref Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 8325019 EPA 8260B 10/25/18 22:41 ref Bromodichloromethane [75-27-4]A 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/25/18 22:41 ref Bromoform [75-25-2]A 0.22 U ug/L 1 0.22 1.0 8325019 EPA 8260B 10/25/18 22:41 ref Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 8325019 EPA 8260B 10/25/18 22:41 ref Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 8325019 EPA 8260B 10/25/18 22:41 ref Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/25/18 22:41 ref Chlorobenzene [108-90-7]A 4.7 ug/L 1 0.17 1.0 8125019 EPA 8260B 10/25/18 22:41 ref Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 8325019 EPA 8260B 10/25/18 22:41 ref Chloroform [67-66-3]A 0.18 U ug/L 1 0.18 1.0 8325019 EPA 8260B 10/25/18 22:41 ref Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 8325019 EPA 8260B 10/25/18 22:41 ref cis-1,2-Dichloroethene [156-59-2]A 0.15 U ug/L 1 0.15 1.0 8325019 EPA 8260B 10/25/18 22:41 ref cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 8325019 EPA 8260B 10/25/18 22:41 ref Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/25/18 22:41 ref Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 8325019 EPA 8260B 10/25/18 22:41 ref Ethylbenzene [100-41-4]A 0.13 U ug/L 1 0.13 1.0 8325019 EPA 8260B 10/25/18 22:41 ref Iodomethane [74-88-4]A 1.7 U ug/L 1 1.7 5.0 8325019 EPA 8260B 10/25/18 22:41 ref Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 8325019 EPA 8260B 10/25/18 22:41 ref Styrene [100-42-5]A 0.11 U ug/L 1 0.11 1.0 8325019 EPA 8260B 10/25/18 22:41 ref Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/25/18 22:41 ref Toluene [108-88-3]A 0.14 U ug/L 1 0.14 1.0 8325019 EPA 8260B 10/25/18 22:41 ref trans-1,2-Dichloroethene [156-60-5]A 0.21 U ug/L 1 0.21 1.0 8325019 EPA 8260B 10/25/18 22:41 ref trans-1,3-Dichloropropene [10061-02-6]A 0.15 U ug/L 1 0.15 1.0 8325019 EPA 8260B 10/25/18 22:41 ref trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 8325019 EPA 8260B 10/25/18 22:41 ref Trichloroethene [79-01-6]A 0.15 U ug/L 1 0.15 1.0 8325019 EPA 8260B 10/25/18 22:41 ref Trichlorofluoromethane [75-69-4]A 0.24 U ug/L 1 0.24 1.0 8325019 EPA 8260B 10/25/18 22:41 ref Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 8325019 EPA 8260B 10/25/18 22:41 ref Vinyl chloride [75-01-4]A 0.32 U ug/L 1 0.32 1.0 8325019 EPA 8260B 10/25/18 22:41 ref Xylenes (Total) [1330-20-7]A 0.45 U ug/L 1 0.45 3.0 8325019 EPA 8260B 10/25/18 22:41 ref FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 11 Of 22 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-I4 Lab Sample ID:CB15729-04 Received: 10/22/18 10:00 Matrix: Ground Water Sampled:10/19/18 14:53 Work Order: CB15729 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 40 1 50.0 80 % 53-136 8J25019 EPA 8260E 10125118 22:41 ref Dlbromofluoromethane 47 1 50.0 94 % 67-129 8J25019 EPA 8260E 10125118 22:41 ref Toluene-& 44 1 50.0 89 % 59-134 8J25019 EPA 8260E 10125118 22:41 ref 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 8KO1028 EPA 7470A 11/02/18 13:53 NMN 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 8323015 EPA 6010D 10/24/18 13:24 ]DH Barium [7440-39-3]^ 546 ug/L 1 1.10 10.0 8323015 EPA 6010D 10/24/18 13:24 ]DH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 8323015 EPA 6010D 10/24/18 13:24 ]DH Chromium [7440-47-3]^ 2.87 J ug/L 1 1.40 10.0 8323015 EPA 6010D 10/24/18 13:24 ]DH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 8323015 EPA 6010D 10/24/18 13:24 ]DH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 8323015 EPA 6010D 10/24/18 13:24 ]DH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 8323015 EPA 6010D 10/24/18 13:24 ]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 60 ug/L 1 1.2 2.0 8KO1028 EPA 8260C 11/01/18 17:33 KKW Results DF Snike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes 4.4 1 5.00 88 % 75-125 SK01028 EPA 6260C 11/01/181723 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 22 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4103-Trip Blank I Lab Sample ID:CB15729-05 Received: 10/22/18 10:00 Matrix: Water Sampled:10/18/18 17:40 Work Order: CB15729 Project: White Street LF-Phase I Sampled By:ENCO Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flao Units DF MDL Q Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]^ 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/25/18 23:11 ref 1,1,1-Trichloroethane [71-55-6]^ 0.12 U ug/L 1 0.12 1.0 8325019 EPA 8260B 10/25/18 23:11 ref 1,1,2,2-Tetrachloroethane [79-34-5]^ 0.28 U ug/L 1 0.28 1.0 8325019 EPA 8260B 10/25/18 23:11 ref 1,1,2-Trichloroethane [79-00-5]^ 0.14 U ug/L 1 0.14 1.0 8325019 EPA 8260B 10/25/18 23:11 ref 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 8325019 EPA 8260B 10/25/18 23:11 ref 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 8325019 EPA 8260B 10/25/18 23:11 ref 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 8325019 EPA 8260B 10/25/18 23:11 ref 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 8325019 EPA 8260B 10/25/18 23:11 ref 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 8325019 EPA 8260B 10/25/18 23:11 ref 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 8325019 EPA 8260B 10/25/18 23:11 ref 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 8325019 EPA 8260B 10/25/18 23:11 ref 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 8325019 EPA 8260B 10/25/18 23:11 ref 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 8325019 EPA 8260B 10/25/18 23:11 ref 2-Butanone [78-93-3]^ 1.3 U ug/L 1 1.3 5.0 8325019 EPA 8260B 10/25/18 23:11 ref 2-Hexanone [591-78-6]^ 0.88 U ug/L 1 0.88 5.0 8325019 EPA 8260B 10/25/18 23:11 ref 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 8325019 EPA 8260B 10/25/18 23:11 ref Acetone [67-64-1]^ 10 U ug/L 1 10 20 8325019 EPA 8260B 10/25/18 23:11 ref Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 8325019 EPA 8260B 10/25/18 23:11 ref Benzene[71-43-2]^ 0.15 U ug/L 1 0.15 1.0 8325019 EPA 8260B 10/25/18 23:11 ref Bromochloromethane [74-97-5]^ 0.48 U ug/L 1 0.48 1.0 8325019 EPA 8260B 10/25/18 23:11 ref Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/25/18 23:11 ref Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 8325019 EPA 8260B 10/25/18 23:11 ref Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 8325019 EPA 8260B 10/25/18 23:11 ref Carbon disulfide [75-15-0]^ 1.5 U ug/L 1 1.5 5.0 8325019 EPA 8260B 10/25/18 23:11 ref Carbon tetrachloride [56-23-5]^ 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/25/18 23:11 ref Chlorobenzene [108-90-7]^ 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/25/18 23:11 ref Chloroethane [75-00-3]^ 0.23 U ug/L 1 0.23 1.0 8325019 EPA 8260B 10/25/18 23:11 ref Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 8325019 EPA 8260B 10/25/18 23:11 ref Chloromethane [74-87-3]^ 0.13 U ug/L 1 0.13 1.0 8325019 EPA 8260B 10/25/18 23:11 ref cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 8325019 EPA 8260B 10/25/18 23:11 ref cis-1,3-Dichloropropene [10061-01-5]^ 0.20 U ug/L 1 0.20 1.0 8325019 EPA 8260B 10/25/18 23:11 ref Dibromochloromethane [124-48-1]^ 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/25/18 23:11 ref Dibromomethane [74-95-3]^ 0.27 U ug/L 1 0.27 1.0 8325019 EPA 8260B 10/25/18 23:11 ref Ethylbenzene [100-41-4]^ 0.13 U ug/L 1 0.13 1.0 8325019 EPA 8260B 10/25/18 23:11 ref Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 8325019 EPA 8260B 10/25/18 23:11 ref Methylene chloride [75-09-2]^ 0.23 U ug/L 1 0.23 1.0 8325019 EPA 8260B 10/25/18 23:11 ref Styrene [100-42-5]^ 0.11 U ug/L 1 0.11 1.0 8325019 EPA 8260B 10/25/18 23:11 ref Tetrachloroethene [127-18-4]^ 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/25/18 23:11 ref Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 8325019 EPA 8260B 10/25/18 23:11 ref trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 8325019 EPA 8260B 10/25/18 23:11 ref trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 8325019 EPA 8260B 10/25/18 23:11 ref trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 U ug/L 1 0.70 1.0 8325019 EPA 8260B 10/25/18 23:11 ref Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 8325019 EPA 8260B 10/25/18 23:11 ref Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 8325019 EPA 8260B 10/25/18 23:11 ref Vinyl acetate [108-05-4]^ 0.95 U ug/L 1 0.95 5.0 8325019 EPA 8260B 10/25/18 23:11 ref Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 8325019 EPA 8260B 10/25/18 23:11 ref Xylenes(Total)[1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 8325019 EPA 8260B 10/25/18 23:11 ref FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 13 Of 22 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-Trip Blank I Lab Sample ID:CB15729-05 Received: 10/22/18 10:00 Matrix: Water Sampled:10/18/18 17:40 Work Order: CB15729 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 39 1 50.0 78 % 53-136 8J25019 EPA 8260E 10125118 23:11 ref Dlbromofluoromethane 48 1 50.0 96 % 67-129 8J25019 EPA 8260E 10125118 23:11 ref Toluene-& 43 1 50.0 87 % 59-134 8J25019 EPA 8260E 10125118 23:11 ref 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 8KO1028 EPA 8260C 11/01/18 12:10 KKW Surrogates Results DF Snike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes Toluene-& 4.9 1 5.00 99 % 75-125 8KO1028 EPA 8260C 11/01/1812:10 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 22 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 8.725019 - EPA 5030E MS Blank (8125019-BLK3) Prepared: 10/25/2018 10:03 Analyzed: 10/25/2018 20:40 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 41 u9/L 50.0 61 53-136 47 u9/L 50.0 93 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 22 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch SJ25019 - EPA 5030E MS - Continued Blank (8125019-BLK3) Continued Prepared: 10/25/2018 10:03 Analyzed: 10/25/2018 20:40 Spike Source %REC RPD Analvte Result Flaq Q Units Level Result %REC Limits RPD Limit Notes Toluene-d8 43 u91L 50.0 87 59-134 LCS (8325019-BSI) Prepared: 10/25/2018 10:03 Analyzed: 10/25/2018 18:39 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 22 1.0 ug/L 20.0 109 75-133 Benzene 22 1.0 ug/L 20.0 112 80-134 Chlorobenzene 19 1.0 ug/L 20.0 95 80-120 Toluene 20 1.0 ug/L 20.0 98 71-120 Trichloroethene 19 1.0 ug/L 20.0 95 74-120 Matrix Spike (8725019-MS1) Prepared: 10/25/2018 10:03 Analyzed: 10/25/2018 19:09 Source: CB16362-08 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 113 75-133 Benzene 23 1.0 ug/L 20.0 0.15 U 116 80-134 Chlorobenzene 20 1.0 ug/L 20.0 0.17 U 101 80-120 Toluene 20 1.0 ug/L 20.0 0.14 U 98 71-120 Trichloroethene 21 1.0 ug/L 20.0 0.15 U 103 74-120 Matrix Spike Dup (8325019-MSD1) Prepared: 10/25/2018 10:03 Analyzed: 10/25/2018 19:39 Source: CB16362-08 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 21 1.0 ug/L 20.0 0.21 U 106 75-133 6 20 Benzene 22 1.0 ug/L 20.0 0.15 U 112 80-134 4 17 Chlorobenzene 20 1.0 ug/L 20.0 0.17 U 98 80-120 3 16 Toluene 19 1.0 ug/L 20.0 0.14 U 95 71-120 3 17 Trichloroethene 20 1.0 ug/L 20.0 0.15 U 99 74-120 3 22 Metals by EPA 6000/7000 Series Methods - Quality Control Batch 8K01028 - EPA 245.1 Blank (8K03028-BLK1) Prepared: 11/01/2018 12:42 Analyzed: 11/02/2018 13:26 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 (8K01028-BS3) Prepared: 11/01/2018 12:42 Analyzed: 11/02/2018 13:28 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 5.51 0.200 ug/L 5.00 110 80-120 Matrix Spike (8K01028-MS1) Prepared: 11/01/2018 12:42 Analyzed: 11/02/2018 13:33 Source: CB15729-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 5.11 0.200 ug/L 5.00 0.150 U 102 75-125 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 16 Of 22 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals by EPA 6000/7000 Series Methods - Quality Control Batch 8K01028 - EPA 245.1 - Continued Matrix Spike Dup (8K03028-MSD3) Prepared: 11/01/2018 12:42 Analyzed: 11/02/2018 13:36 Source: CB15729-01 Spike Source %REC RPD Analvte Result Flaq Q Units Level Result %REC Limits RPD Limit Notes Mercury 5.07 0.200 ug/L 5.00 0.150 U 101 75-125 0.8 25 Post Spike (8K03028-PSI) Prepared: 11/01/2018 12:42 Analyzed: 11/02/2018 13:38 Source: CB15729-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 5.28 0.200 ug/L 5.00 0.0710 104 75-125 Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch BJ23015 - EPA 3005A Blank (8323015-BLKI) Prepared: 10/23/2018 09:50 Analyzed: 10/24/2018 12:47 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 (8323015-BSI) Prepared: 10/23/2018 09:50 Analyzed: 10/24/2018 12:52 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 197 10.0 ug/L 200 98 80-120 Barium 209 10.0 ug/L 200 104 80-120 Cadmium 20.8 1.00 ug/L 20.0 104 80-120 Chromium 199 10.0 ug/L 200 100 80-120 Lead 208 10.0 ug/L 200 104 80-120 Selenium 214 10.0 ug/L 200 107 80-120 Silver 195 10.0 ug/L 200 98 80-120 Matrix Spike (8323015-MS1) Prepared: 10/23/2018 09:50 Analyzed: 10/24/2018 12:56 Source: CB15729-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 187 10.0 ug/L 200 7.60 U 93 75-125 Barium 828 10.0 ug/L 200 660 84 75-125 Cadmium 17.8 1.00 ug/L 20.0 0.360 U 89 75-125 Chromium 187 10.0 ug/L 200 2.48 92 75-125 Lead 188 10.0 ug/L 200 3.10 U 94 75-125 Selenium 172 10.0 ug/L 200 6.20 U 86 75-125 Silver 190 10.0 ug/L 200 1.90 U 95 75-125 Matrix Spike Dup (8323015-MSD1) Prepared: 10/23/2018 09:50 Analyzed: 10/24/2018 12:59 Source: CB15729-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 189 10.0 ug/L 200 7.60 U 95 75-125 1 20 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 17 Of 22 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 8.723015 - EPA 3005A - Continued Matrix Spike Dup (8123015-MSD3) Continued Prepared: 10/23/2018 09:50 Analyzed: 10/24/2018 12:59 Source: CB15729-01 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes Barium 835 10.0 ug/L 200 660 87 75-125 0.8 20 Cadmium 18.0 1.00 ug/L 20.0 0.360 U 90 75-125 0.9 20 Chromium 190 10.0 ug/L 200 2.48 94 75-125 2 20 Lead 193 10.0 ug/L 200 3.10 U 96 75-125 2 20 Selenium 168 10.0 ug/L 200 6.20 U 84 75-125 2 20 Silver 192 10.0 ug/L 200 1.90 U 96 75-125 1 20 Post Spike (8]23015-PS3) Prepared: 10/23/2018 09:50 Analyzed: 10/24/2018 13:01 Source: CB15729-01 Spike Source %REC RPD Analvte Result Flag Q Units Level Result %REC Limits RPD Limit Notes Arsenic 0.190 0.0100 mg/L 0.200 -0.00593 95 80-120 Barium 0.838 0.0100 mg/L 0.200 0.660 89 80-120 Cadmium 0.0183 0.00100 mg/L 0.0200 -0.00111 91 80-120 Chromium 0.195 0.0100 mg/L 0.200 0.00248 96 80-120 Lead 0.191 0.0100 mg/L 0.200 0.00139 95 80-120 Selenium 0.169 0.0100 mg/L 0.200 -0.0247 85 80-120 Silver 0.204 0.0100 mg/L 0.200 -0.000149 102 80-120 Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Batch 8.731029 - EPA 5030E MS Blank (8]31029-BLK3) Prepared: 10/31/2018 14:43 Analyzed: 11/01/2018 00:18 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 1.2 U 2.0 ug/L Toluene-d8 5.0 u91L 5.00 100 75-125 LCS (8331029-BS1) Prepared: 10/31/2018 14:43 Analyzed: 10/31/2018 22:28 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 29 2.0 ug/L 25.0 116 80-133 Toluene-d8 5.1 u91L 5.00 103 75-125 LCS Dup (8333029-BSD1) Prepared: 10/31/2018 14:43 Analyzed: 10/31/2018 23:05 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 28 2.0 ug/L 25.0 113 80-133 3 19 QM-10 Toluene-d8 4.8 u91L 5.00 96 75-125 QM-10 Batch SK01028 -EPA 5030B MS Blank (8K03028-BLKI) Prepared: 11/01/2018 00:00 Analyzed: 11/01/2018 10:32 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 1.2 U 2.0 ug/L Toluene-d8 4.6 u91L 5.00 92 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 22 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Batch 8K01028 - EPA 5030E MS - Continued LCS (8K01028-BS3) Prepared: 11/01/2018 00:00 Analyzed: 11/01/2018 09:27 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 27 2.0 ug/L 25.0 109 80-133 Toluene-d8 4.6 u91L 5.00 91 75-125 LCS Dup (8K01028-BSD1) Prepared: 11/01/2018 00:00 Analyzed: 11/01/2018 09:59 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 28 2.0 ug/L 25.0 112 80-133 3 19 QM-10 Toluene-d8 4.6 u9/L 5.00 93 75-125 QM-10 Batch 8K02017 - EPA 5030E MS Blank (8K02017-BLK1) Prepared: 11/02/2018 00:00 Analyzed: 11/02/2018 10:08 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 4.6 u91L 5.00 92 75-125 LCS (8K02017-BS1) Prepared: 11/02/2018 00:00 Analyzed: 11/02/2018 09:02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 28 2.0 ug/L 25.0 113 80-133 Toluene-d8 4.5 u9/L 5.00 69 75-125 LCS Dup (8K02017-BSD1) Prepared: 11/02/2018 00:00 Analyzed: 11/02/2018 09:34 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 4 19 QM-10 Toluene-d8 4.7 u91L 5.00 94 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 22 (� �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. 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 20 of 22 Aw u 3 N 3 V- m f V 'n a k11 � y Z, u ° d I L o m m m pO 3 N �. n m �. a w a w O J 0 m a N o u� ° 3 3 3 r 6 33 m n co :1) m n co :1) 0 m n co O J _a C) (D m � m Cr � (D O0i to m io m m N m w 0 c� 0 CD w CD 0 w 9 D n 3 a 3 as m ^ m (A) a " p, w CD m ° N C '__ o m 0 to a �J w ? sw 7 C °' 1 � pip ..„ 1r f O ~ 4. IL a N m j � J m _a. :3 O w Or v A O aa XCA 6% J O fa N N £0 DO iC m I� In m 3 l_ fit o m Y o crCD m 8"� I N V r N i N x S CD .�'/' J N N IJ 1m m m m N X X X X X 8260E Appendix 1,8260C SIM ID J v X x x x Ag,As,Ba,Cd,Cr,Pb,Se j I v X X X X Hg 9 n m -a m N o ° J Z 0 V1 S V n p O N yy + O CD 0 a O 3 y p m N J N N ., SU AAAi F(n CD ' D CD C n. (D C7 .� a m x .-f m m m O. 1 0 c it g; 3 1 N3 -4 Q Q CD 3 5' 3 CD ; CD w CL d n `m' 0 NI Q j Page 21 Oft ' Sample Preservation Verification ENCO Cary Work Order: *CB15729 Project: White Street LF-Phase I Client: Golder Associates, Inc. (00007) Project #: 1668421.104 Logged In: 22-Oct-18 12:52 Logged By: John C King Preservation Check Performed By: 01S Date/Time: C B 15729-01 Cont Type Pres (pH) Requirement pH Checked / In Control pH Adjusted Date/Time Adjusted Reagent Used/Comments A 250mLP+HNO3 <2 / N / NA Y / / NA CB15729-02 Cont Type Pres (pH) Requirement pH Checked / In Control pH Adjusted Date/Time Adjusted Reagent Used/Comments A 250mLP+HNO3 <2 ()/ N / NA Y NA CB15729-03 Cont yp Type Pres (pH) Requirement pH Checked / In Control Date/Time pH Adjusted Adjusted Reagent Used/Comments A 250mLP+HNO3 <2 ; / N / NA Y /(N / NA CB15729-04 Cont yp Type Pres (pH) Requirement pH Checked / In Control Date/Time pH Adjusted Adjusted Reagent Used/Comments A 250mLP+HNO3 <2 / N / NA Y /(� / NA CB15729-06 Cont Type Pres (pH) Requirement pH Checked / In Control pH Adjusted Date/Time Adjusted Reagent Used/Comments A 250mLP+HNO3 [F] <2 b/ N / NA Y / l)/ NA CB15729-07 Cont Type Pres (pH) Requirement pH Checked / In Control pH Adjusted Date/Time Adjusted Reagent Used/Comments A 250mLP+HNO3 [F] <2 J / N / NA Y NA Rea ent Name ID 1 2 pH Strip ID: �r�ZrJ Rea ent Name ID 3 4 Reaclent Name ID 5 6 C:\ELMNT\Print\wko_PreservationCheck. rpt Page 22 of 22 age 1 WORK ORDER Printed: 11/5/2018 4:10:32PM CB15729 ENCO Cary Sample Receipt Conditions Client: Golder Associates, Inc. (G0007) Lab Project Mgr: Stephanie Franz Project: White Street LF-Phase I Project Number: 1668421.104 PO #: Report To: Invoice To: Golder Associates, Inc. (G0007) City of Greensboro (CI034) Dusty Reedy Richard Lovett 5B Oak Branch Drive PO Box 3136 Greensboro, NC 27407 Greensboro, NC 27402-3136 Phone: (336) 852-4903 Phone :(336) 373-4188 Fax: (336) 852-4904 Fax: Received By: David E. Wilder Date Received: 22-Oct-18 10:00 Logged In By: John C King Date Logged In: 22-Oct-18 12:52 Work Order Comments: C-102 received at 2.5°C Containers Intact Y Containers Properly Preserved Y Proper Containers Received Y All Samples in PreLog Received Y COC/Labels Agree Y Custody Seals Intact Y Volatile Containers Preserved Y Volatile Containers Headspace Free Y Aqueous Samples Checked for Residual Cl N Received On Ice Y Temperature Corrected Y Reviewed By Date Page 1 of 1 GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL GOLDER LABORATORY DATA REVIEW Page 1 of 3 Project Name: White Street Landfill - Phase I Project Reference Number: 1668421.103 Sampling Event Date: October 16 - 19, 2018 Review Date: January 17, 2019 Initials: EV Report #: C1315729 Signature:45;4� Date: I QA/QC Sign Off: ���� Date: / -) ?- � S 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 EV COC was properly signed by all parties. EV Correct project name and number are on the form. EV Sample receipt condition at laboratory was acceptable. EV Each sample and blank submitted for analysis appears in the report. GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL GOLDEP LABORATORY DATA REVIEW Page 2 of 3 2.0 SAMPLE HOLDING TIMES EV Holding times for extraction and/or analysis were met for each analytical Method (see below for reference). Review Criteria Method Anallytes Holding Time SW-846 Method 8260 and 8011 VOCs 14 days SW-846 Methods 8270, 8080, 8081, 8082, and 8151 SVOCs, PCBs, pesticides and herbicides 7 days for extraction, 40 days from extraction for analysis SW-846 Methods 6000 and 7000 Series Metals except mercury 6 months (no temperature require ents SW-846 Method 7470 Mercury 28 days SW-846 Method 376.1 Sulfide 7 days SW-846 Method 9010 Cyanide 14 days EPA Method 300 Nitrate/Sulfate 48 hours/28 days EPA Method 405.1 BOD 48 hours EPA Method 410.4 COD 28 days EPA Method 365.4 Phosphorous 28 days 3.0 LABORATORY QUALITY CONTROL REVIEW EV Laboratory analyzed at least one internal blank for each method, where applicable. EV Laboratory blank is interference -free. EV Surrogate recoveries are provided for each analytical method, where applicable. EV Surrogate recoveries for each method are within the acceptable limits (i.e., at least 50% of the surrogates were within range). EV 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. EV 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 EV The proper number of constituents are present for each analyte list as identified above (including detects where applicable). EV Proper EPA SW-846 analytical methods were used for analysis. 5.0 DATA REPORTING EV All analytical reporting associated with the event was performed by the contracted lab. EV Trip, field and/or equipment, and laboratory blank results have all been reported. All GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL G O L D E R LABORATORY DATA REVIEW Page 3 of 3 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. EV 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 (10x): 1-1, 1-2, and 1-3 EV The report provides the reporting limit for each constituent. EV The results were reported at or below their proper reporting limits (e.g., MDLs). 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. EV No inorganic or organic constituents were reported above their respective NC 2L Drinking Water Standards or Interim Maximum Allowable Concentrations (IMACs) in wells or field/equipment/trip blanks or above applicable Surface Water Standards for surface water points. NC 2L Exceedances ➢ 1,4 Dioxane (NC 2L = 3 ug/L) • 1-1 @ 240 ug/L • 1-2 @ 250 ug/L • 1-3 @ 300 ug/L • 1-4 @ 60 ug/L ➢ Benzene (NC 2L = 1 ug/L) • 1-1 @ 2.9 ug/L ➢ 1,4 Dichlorobenzene (NC 2L = 6 ug/L) • I-1 @ 6.4 ug/L EV 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). ➢ 1,4 Dioxane was detected for the first time in 1-1, 1-2, and 1-3. However, this was the first time these wells were analyzed for this constituent. EV 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, November 5, 2018 Golder Associates, Inc. (GO007) Attn: Dusty Reedy 5B Oak Branch Drive Greensboro, NC 27407 RE: Laboratory Results for Project Number: 1668421.104, Project Name/Desc: White Street LF-Phase I,II,III SW ENCO Workorder(s): CB15731 Dear Dusty Reedy, Enclosed is a copy of your laboratory report for test samples received by our laboratory on Monday, October 22, 2018. 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 22 PROJECT NARRATIVE Date: 05 November 2018 Client: Golder Associates, Inc. (G0007) Project: White Street LF-Phase 1,11,111 SW Lab ID: CB15731 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 LCS/LCSD were analyzed in place of the MS/MSD for the 8260C SIM ID analysis. Precision between duplicate spikes of 1,4-Dioxane exceeded acceptance criteria for the LCS/LCSD. Quality Control Remarks No Comments Other Comments All samples received under this work order arrived in acceptable conditions. The samples were not checked for residual chlorine, as it is not required. 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 22 (� �Eo www.encolabs.com SAMPLE SUMMARY/LABORATORY CHRONICLE Client ID: 4303/12-SW3 Lab ID: CB15731-01 Sampled: 10/19/18 13:50 Received: 10/22/18 10:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 04/17/19 10/23/18 09:50 10/24/18 13:32 EPA 6020B EPA 3005A 04/17/19 10/23/18 09:57 10/24/18 11:39 EPA 8260E EPA 503013_MS 11/02/18 10/25/18 10:03 10/25/18 23:41 EPA 8260C EPA 503013_MS 11/02/18 11/01/18 00:00 11/01/18 18:09 Client ID: 4303/12-SW2 Lab ID: CB15731-02 Sampled: 10/19/18 12:55 Received: 10/22/18 10:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 04/17/19 10/23/18 09:50 10/24/18 13:34 EPA 6020B EPA 3005A 04/17/19 10/23/18 09:57 10/24/18 12:35 EPA 8260E EPA 5030B_MIS 11/02/18 10/25/18 10:03 10/26/18 00:11 EPA 8260C EPA 503013_MS 11/02/18 11/01/18 00:00 11/01/18 18:45 Client ID: 4103/12-SW3 Lab ID: CB15731-03 Sampled: 10/19/18 13:25 Received: 10/22/18 10:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 04/17/19 10/23/18 09:50 10/24/18 13:36 EPA 6020E EPA 3005A 04/17/19 10/23/18 09:57 10/24/18 12:39 EPA 8260E EPA 503013_MS 11/02/18 10/25/18 10:03 10/26/18 00:42 EPA 8260C EPA 503013_MS 11/02/18 11/01/18 00:00 11/01/18 19:21 Client ID: 4303/12-SW4 Lab ID: CB15731-04 Sampled: 10/19/18 14:15 Received: 10/22/18 10:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 04/17/19 10/23/18 09:50 10/24/18 13:39 EPA 6020E EPA 3005A 04/17/19 10/23/18 09:57 10/24/18 12:43 EPA 8260B EPA 503013_MS 11/02/18 10/25/18 10:03 10/26/18 01:12 EPA 8260C EPA 503013_MS 11/02/18 11/01/18 00:00 11/01/18 19:57 Client ID: 4303/12-Trip Blank Lab ID: CB15731-05 Sampled: 10/19/18 12:55 Received: 10/22/18 10:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260E EPA 503013_MS 11/02/18 10/25/18 10:03 10/26/18 01:43 EPA 8260C EPA 5030B_MS 11/02/18 11/01/18 13:46 11/02/18 00:07 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 3 Of 22 (� �Eo www.encolabs.com SAMPLE DETECTION SUMMARY Client ID: 4303/12-SW3 Lab ID: CB15731-01 Anala Results Flag MDL POLL Units Method Notes Barium - Total 56.6 1.10 10.0 ug/L EPA 6010D Copper - Total 3.11 1 1.60 10.0 ug/L EPA 6010D Vanadium - Total 1.88 1 1.40 10.0 ug/L EPA 6010D Zinc - Total 12.9 4.40 10.0 ug/L EPA 6010D Client ID: 4103/12-SW2 Lab ID: CB15731-02 Anala Results Flag MDL POLL Units Method Notes Barium - Total 57.4 1.10 10.0 ug/L EPA 6010D Copper - Total 3.84 1 1.60 10.0 ug/L EPA 6010D Vanadium - Total 2.26 1 1.40 10.0 ug/L EPA 6010D Zinc - Total 12.2 4.40 10.0 ua/L EPA 6010D I Client ID: 4303/12-SW3 Lab ID: CB15731-03 Anala Results Flag MDL POLL Units Method Notes Barium - Total 56.4 1.10 10.0 ug/L EPA 6010D Copper - Total 2.72 1 1.60 10.0 ug/L EPA 6010D Vanadium - Total 1.51 1 1.40 10.0 ug/L EPA 6010D Zinc - Total 11.8 4.40 10.0 ug/L EPA 6010D Client ID: 4103/12-SW4 Lab ID: CB15731-04 Anala Results Flag MDL POLL Units Method Notes 1,4-Dioxane 2.1 1.2 2.0 ug/L EPA 8260C Barium - Total 61.7 1.10 10.0 ug/L EPA 6010D Copper - Total 2.42 1 1.60 10.0 ug/L EPA 6010D Vanadium - Total 1.61 1 1.40 10.0 ug/L EPA 6010D Zinc - Total 17.5 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 22 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4103/12-SW1 Lab Sample ID:CB15731-01 Received: 10/22/18 10:00 Matrix: Surface Water Sampled:10/19/18 13:50 Work Order: CB15731 Project: White Street LF-Phase I,II,III SW Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flan Units DF MDL Q Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]^ 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/25/18 23:41 ref 1,1,1-Trichloroethane [71-55-6]^ 0.12 U ug/L 1 0.12 1.0 8325019 EPA 8260B 10/25/18 23:41 ref 1,1,2,2-Tetrachloroethane [79-34-5]^ 0.28 U ug/L 1 0.28 1.0 8325019 EPA 8260B 10/25/18 23:41 ref 1,1,2-Trichloroethane [79-00-5]^ 0.14 U ug/L 1 0.14 1.0 8325019 EPA 8260B 10/25/18 23:41 ref 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 8325019 EPA 8260B 10/25/18 23:41 ref 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 8325019 EPA 8260B 10/25/18 23:41 ref 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 8325019 EPA 8260B 10/25/18 23:41 ref 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 8325019 EPA 8260B 10/25/18 23:41 ref 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 8325019 EPA 8260B 10/25/18 23:41 ref 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 8325019 EPA 8260B 10/25/18 23:41 ref 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 8325019 EPA 8260B 10/25/18 23:41 ref 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 8325019 EPA 8260B 10/25/18 23:41 ref 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 8325019 EPA 8260B 10/25/18 23:41 ref 2-Butanone [78-93-3]^ 1.3 U ug/L 1 1.3 5.0 8325019 EPA 8260B 10/25/18 23:41 ref 2-Hexanone [591-78-6]^ 0.88 U ug/L 1 0.88 5.0 8325019 EPA 8260B 10/25/18 23:41 ref 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 8325019 EPA 8260B 10/25/18 23:41 ref Acetone [67-64-1]^ 10 U ug/L 1 10 20 8325019 EPA 8260B 10/25/18 23:41 ref Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 8325019 EPA 8260B 10/25/18 23:41 ref Benzene[71-43-2]^ 0.15 U ug/L 1 0.15 1.0 8325019 EPA 8260B 10/25/18 23:41 ref Bromochloromethane [74-97-5]^ 0.48 U ug/L 1 0.48 1.0 8325019 EPA 8260B 10/25/18 23:41 ref Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/25/18 23:41 ref Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 8325019 EPA 8260B 10/25/18 23:41 ref Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 8325019 EPA 8260B 10/25/18 23:41 ref Carbon disulfide [75-15-0]^ 1.5 U ug/L 1 1.5 5.0 8325019 EPA 8260B 10/25/18 23:41 ref Carbon tetrachloride [56-23-5]^ 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/25/18 23:41 ref Chlorobenzene [108-90-7]^ 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/25/18 23:41 ref Chloroethane [75-00-3]^ 0.23 U ug/L 1 0.23 1.0 8325019 EPA 8260B 10/25/18 23:41 ref Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 8325019 EPA 8260B 10/25/18 23:41 ref Chloromethane [74-87-3]^ 0.13 U ug/L 1 0.13 1.0 8325019 EPA 8260B 10/25/18 23:41 ref cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 8325019 EPA 8260B 10/25/18 23:41 ref cis-1,3-Dichloropropene [10061-01-5]^ 0.20 U ug/L 1 0.20 1.0 8325019 EPA 8260B 10/25/18 23:41 ref Dibromochloromethane [124-48-1]^ 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/25/18 23:41 ref Dibromomethane [74-95-3]^ 0.27 U ug/L 1 0.27 1.0 8325019 EPA 8260B 10/25/18 23:41 ref Ethylbenzene [100-41-4]^ 0.13 U ug/L 1 0.13 1.0 8325019 EPA 8260B 10/25/18 23:41 ref Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 8325019 EPA 8260B 10/25/18 23:41 ref Methylene chloride [75-09-2]^ 0.23 U ug/L 1 0.23 1.0 8325019 EPA 8260B 10/25/18 23:41 ref Styrene [100-42-5]^ 0.11 U ug/L 1 0.11 1.0 8325019 EPA 8260B 10/25/18 23:41 ref Tetrachloroethene [127-18-4]^ 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/25/18 23:41 ref Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 8325019 EPA 8260B 10/25/18 23:41 ref trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 8325019 EPA 8260B 10/25/18 23:41 ref trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 8325019 EPA 8260B 10/25/18 23:41 ref trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 U ug/L 1 0.70 1.0 8325019 EPA 8260B 10/25/18 23:41 ref Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 8325019 EPA 8260B 10/25/18 23:41 ref Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 8325019 EPA 8260B 10/25/18 23:41 ref Vinyl acetate [108-05-4]^ 0.95 U ug/L 1 0.95 5.0 8325019 EPA 8260B 10/25/18 23:41 ref Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 8325019 EPA 8260B 10/25/18 23:41 ref Xylenes(Total)[1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 8325019 EPA 8260B 10/25/18 23:41 ref FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 5 Of 22 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103/12-SW1 Lab Sample ID:CB15731-01 Received: 10/22/18 10:00 Matrix: Surface Water Sampled:10/19/18 13:50 Work Order: CB15731 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 37 1 50.0 74 % 53-136 8J25019 EPA 8260E 10125118 23:41 ref Dlbromofluoromethane 47 1 50.0 94 % 67-129 8J25019 EPA 8260E 10125118 23:41 ref Toluene-& 43 1 50.0 86 % 59-134 8J25019 EPA 8260E 10125118 23:41 ref 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]^ 1.85 U ug/L 5 1.85 5.00 8323017 EPA 6020E 10/24/18 11:39 CM K Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 8323015 EPA 6010D 10/24/18 13:32 ]DH Barium [7440-39-3]^ 56.6 ug/L 1 1.10 10.0 8323015 EPA 6010D 10/24/18 13:32 ]DH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 8323015 EPA 6010D 10/24/18 13:32 ]DH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 8323015 EPA 6010D 10/24/18 13:32 ]DH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 8323015 EPA 6010D 10/24/18 13:32 ]DH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 8323015 EPA 6010D 10/24/18 13:32 ]DH Copper[7440-50-8]^ 3.11 J ug/L 1 1.60 10.0 8323015 EPA 6010D 10/24/18 13:32 ]DH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 8323015 EPA 6010D 10/24/18 13:32 ]DH Nickel[7440-02-0]^ 2.20 U ug/L 1 2.20 10.0 8323015 EPA 6010D 10/24/18 13:32 ]DH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 8323015 EPA 6010D 10/24/18 13:32 ]DH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 8323015 EPA 6010D 10/24/18 13:32 ]DH Thallium [7440-28-0]^ 0.550 U ug/L 5 0.550 5.00 8323017 EPA 6020E 10/24/18 11:39 CM K Vanadium [7440-62-2]^ 1.88 J ug/L 1 1.40 10.0 8323015 EPA 6010D 10/24/18 13:32 ]DH Zinc [7440-66-6]^ 12.9 ug/L 1 4.40 10.0 8323015 EPA 6010D 10/24/18 13:32 3DH Volatile Organic Compounds by GCMS SIM Isotope Dilution Analyte rCAS Numberl 1,4-Dioxane [123-91-1] Surrogates Toluene-d8 Results Flag Units DF MDL P L Batch Method Analyzed By Notes 1.2 U ug/L 1 1.2 2.0 8KO1028 EPA 8260C 11/01/18 18:09 KKW Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes 4.4 1 5.00 88 % 75-125 8KO1028 EPA 6260C 11/01/1818:09 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 22 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4103/12-SW2 Lab Sample ID:CB15731-02 Received: 10/22/18 10:00 Matrix: Surface Water Sampled:10/19/18 12:55 Work Order: CB15731 Project: White Street LF-Phase I,II,III SW Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flan Units DF MDL Q Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]^ 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/26/18 00:11 ref 1,1,1-Trichloroethane [71-55-6]^ 0.12 U ug/L 1 0.12 1.0 8325019 EPA 8260B 10/26/18 00:11 ref 1,1,2,2-Tetrachloroethane [79-34-5]^ 0.28 U ug/L 1 0.28 1.0 8325019 EPA 8260B 10/26/18 00:11 ref 1,1,2-Trichloroethane [79-00-5]^ 0.14 U ug/L 1 0.14 1.0 8325019 EPA 8260B 10/26/18 00:11 ref 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 8325019 EPA 8260B 10/26/18 00:11 ref 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 8325019 EPA 8260B 10/26/18 00:11 ref 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 8325019 EPA 8260B 10/26/18 00:11 ref 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 8325019 EPA 8260B 10/26/18 00:11 ref 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 8325019 EPA 8260B 10/26/18 00:11 ref 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 8325019 EPA 8260B 10/26/18 00:11 ref 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 8325019 EPA 8260B 10/26/18 00:11 ref 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 8325019 EPA 8260B 10/26/18 00:11 ref 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 8325019 EPA 8260B 10/26/18 00:11 ref 2-Butanone [78-93-3]^ 1.3 U ug/L 1 1.3 5.0 8325019 EPA 8260B 10/26/18 00:11 ref 2-Hexanone [591-78-6]^ 0.88 U ug/L 1 0.88 5.0 8325019 EPA 8260B 10/26/18 00:11 ref 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 8325019 EPA 8260B 10/26/18 00:11 ref Acetone [67-64-1]^ 10 U ug/L 1 10 20 8325019 EPA 8260B 10/26/18 00:11 ref Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 8325019 EPA 8260B 10/26/18 00:11 ref Benzene[71-43-2]^ 0.15 U ug/L 1 0.15 1.0 8325019 EPA 8260B 10/26/18 00:11 ref Bromochloromethane [74-97-5]^ 0.48 U ug/L 1 0.48 1.0 8325019 EPA 8260B 10/26/18 00:11 ref Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/26/18 00:11 ref Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 8325019 EPA 8260B 10/26/18 00:11 ref Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 8325019 EPA 8260B 10/26/18 00:11 ref Carbon disulfide [75-15-0]^ 1.5 U ug/L 1 1.5 5.0 8325019 EPA 8260B 10/26/18 00:11 ref Carbon tetrachloride [56-23-5]^ 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/26/18 00:11 ref Chlorobenzene [108-90-7]^ 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/26/18 00:11 ref Chloroethane [75-00-3]^ 0.23 U ug/L 1 0.23 1.0 8325019 EPA 8260B 10/26/18 00:11 ref Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 8325019 EPA 8260B 10/26/18 00:11 ref Chloromethane [74-87-3]^ 0.13 U ug/L 1 0.13 1.0 8325019 EPA 8260B 10/26/18 00:11 ref cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 8325019 EPA 8260B 10/26/18 00:11 ref cis-1,3-Dichloropropene [10061-01-5]^ 0.20 U ug/L 1 0.20 1.0 8325019 EPA 8260B 10/26/18 00:11 ref Dibromochloromethane [124-48-1]^ 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/26/18 00:11 ref Dibromomethane [74-95-3]^ 0.27 U ug/L 1 0.27 1.0 8325019 EPA 8260B 10/26/18 00:11 ref Ethylbenzene [100-41-4]^ 0.13 U ug/L 1 0.13 1.0 8325019 EPA 8260B 10/26/18 00:11 ref Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 8325019 EPA 8260B 10/26/18 00:11 ref Methylene chloride [75-09-2]^ 0.23 U ug/L 1 0.23 1.0 8325019 EPA 8260B 10/26/18 00:11 ref Styrene [100-42-5]^ 0.11 U ug/L 1 0.11 1.0 8325019 EPA 8260B 10/26/18 00:11 ref Tetrachloroethene [127-18-4]^ 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/26/18 00:11 ref Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 8325019 EPA 8260B 10/26/18 00:11 ref trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 8325019 EPA 8260B 10/26/18 00:11 ref trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 8325019 EPA 8260B 10/26/18 00:11 ref trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 U ug/L 1 0.70 1.0 8325019 EPA 8260B 10/26/18 00:11 ref Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 8325019 EPA 8260B 10/26/18 00:11 ref Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 8325019 EPA 8260B 10/26/18 00:11 ref Vinyl acetate [108-05-4]^ 0.95 U ug/L 1 0.95 5.0 8325019 EPA 8260B 10/26/18 00:11 ref Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 8325019 EPA 8260B 10/26/18 00:11 ref Xylenes(Total)[1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 8325019 EPA 8260B 10/26/18 00:11 ref FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 7 Of 22 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103/12-SW2 Lab Sample ID:CB15731-02 Received: 10/22/18 10:00 Matrix: Surface Water Sampled:10/19/18 12:55 Work Order: CB15731 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 40 1 50.0 79 % 53-136 8J25019 EPA 8260E 10126118 00:11 ref Dlbromofluoromethane 47 1 50.0 95 % 67-129 8J25019 EPA 8260E 10126118 00:11 ref Toluene-& 44 1 50.0 87 % 59-134 8J25019 EPA 8260E 10126118 00:11 ref 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]^ 1.85 U ug/L 5 1.85 5.00 8323017 EPA 6020E 10/24/18 12:35 CM K Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 8323015 EPA 6010D 10/24/18 13:34 ]DH Barium [7440-39-3]^ 57.4 ug/L 1 1.10 10.0 8323015 EPA 6010D 10/24/18 13:34 ]DH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 8323015 EPA 6010D 10/24/18 13:34 ]DH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 8323015 EPA 6010D 10/24/18 13:34 ]DH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 8323015 EPA 6010D 10/24/18 13:34 ]DH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 8323015 EPA 6010D 10/24/18 13:34 ]DH Copper[7440-50-8]^ 3.84 J ug/L 1 1.60 10.0 8323015 EPA 6010D 10/24/18 13:34 ]DH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 8323015 EPA 6010D 10/24/18 13:34 ]DH Nickel[7440-02-0]^ 2.20 U ug/L 1 2.20 10.0 8323015 EPA 6010D 10/24/18 13:34 ]DH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 8323015 EPA 6010D 10/24/18 13:34 ]DH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 8323015 EPA 6010D 10/24/18 13:34 ]DH Thallium [7440-28-0]^ 0.550 U ug/L 5 0.550 5.00 8323017 EPA 6020E 10/24/18 12:35 CM K Vanadium [7440-62-2]^ 2.26 J ug/L 1 1.40 10.0 8323015 EPA 6010D 10/24/18 13:34 ]DH Zinc [7440-66-6]^ 12.2 ug/L 1 4.40 10.0 8323015 EPA 6010D 10/24/18 13:34 3DH Volatile Organic Compounds by GCMS SIM Isotope Dilution Analyte rCAS Numberl 1,4-Dioxane [123-91-1] Surrogates Toluene-d8 Results Flag Units DF MDL P L Batch Method Analyzed By Notes 1.2 U ug/L 1 1.2 2.0 8KO1028 EPA 8260C 11/01/18 18:45 KKW Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes 4.3 1 5.00 86 % 75-125 8K01028 EPA 6260C 11/01/1816:45 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 22 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4103/12-SW3 Lab Sample ID:CB15731-03 Received: 10/22/18 10:00 Matrix: Surface Water Sampled:10/19/18 13:25 Work Order: CB15731 Project: White Street LF-Phase I,II,III SW Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flan Units DF MDL Q Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]^ 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/26/18 00:42 ref 1,1,1-Trichloroethane [71-55-6]^ 0.12 U ug/L 1 0.12 1.0 8325019 EPA 8260B 10/26/18 00:42 ref 1,1,2,2-Tetrachloroethane [79-34-5]^ 0.28 U ug/L 1 0.28 1.0 8325019 EPA 8260B 10/26/18 00:42 ref 1,1,2-Trichloroethane [79-00-5]^ 0.14 U ug/L 1 0.14 1.0 8325019 EPA 8260B 10/26/18 00:42 ref 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 8325019 EPA 8260B 10/26/18 00:42 ref 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 8325019 EPA 8260B 10/26/18 00:42 ref 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 8325019 EPA 8260B 10/26/18 00:42 ref 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 8325019 EPA 8260B 10/26/18 00:42 ref 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 8325019 EPA 8260B 10/26/18 00:42 ref 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 8325019 EPA 8260B 10/26/18 00:42 ref 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 8325019 EPA 8260B 10/26/18 00:42 ref 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 8325019 EPA 8260B 10/26/18 00:42 ref 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 8325019 EPA 8260B 10/26/18 00:42 ref 2-Butanone [78-93-3]^ 1.3 U ug/L 1 1.3 5.0 8325019 EPA 8260B 10/26/18 00:42 ref 2-Hexanone [591-78-6]^ 0.88 U ug/L 1 0.88 5.0 8325019 EPA 8260B 10/26/18 00:42 ref 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 8325019 EPA 8260B 10/26/18 00:42 ref Acetone [67-64-1]^ 10 U ug/L 1 10 20 8325019 EPA 8260B 10/26/18 00:42 ref Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 8325019 EPA 8260B 10/26/18 00:42 ref Benzene[71-43-2]^ 0.15 U ug/L 1 0.15 1.0 8325019 EPA 8260B 10/26/18 00:42 ref Bromochloromethane [74-97-5]^ 0.48 U ug/L 1 0.48 1.0 8325019 EPA 8260B 10/26/18 00:42 ref Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/26/18 00:42 ref Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 8325019 EPA 8260B 10/26/18 00:42 ref Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 8325019 EPA 8260B 10/26/18 00:42 ref Carbon disulfide [75-15-0]^ 1.5 U ug/L 1 1.5 5.0 8325019 EPA 8260B 10/26/18 00:42 ref Carbon tetrachloride [56-23-5]^ 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/26/18 00:42 ref Chlorobenzene [108-90-7]^ 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/26/18 00:42 ref Chloroethane [75-00-3]^ 0.23 U ug/L 1 0.23 1.0 8325019 EPA 8260B 10/26/18 00:42 ref Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 8325019 EPA 8260B 10/26/18 00:42 ref Chloromethane [74-87-3]^ 0.13 U ug/L 1 0.13 1.0 8325019 EPA 8260B 10/26/18 00:42 ref cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 8325019 EPA 8260B 10/26/18 00:42 ref cis-1,3-Dichloropropene [10061-01-5]^ 0.20 U ug/L 1 0.20 1.0 8325019 EPA 8260B 10/26/18 00:42 ref Dibromochloromethane [124-48-1]^ 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/26/18 00:42 ref Dibromomethane [74-95-3]^ 0.27 U ug/L 1 0.27 1.0 8325019 EPA 8260B 10/26/18 00:42 ref Ethylbenzene [100-41-4]^ 0.13 U ug/L 1 0.13 1.0 8325019 EPA 8260B 10/26/18 00:42 ref Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 8325019 EPA 8260B 10/26/18 00:42 ref Methylene chloride [75-09-2]^ 0.23 U ug/L 1 0.23 1.0 8325019 EPA 8260B 10/26/18 00:42 ref Styrene [100-42-5]^ 0.11 U ug/L 1 0.11 1.0 8325019 EPA 8260B 10/26/18 00:42 ref Tetrachloroethene [127-18-4]^ 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/26/18 00:42 ref Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 8325019 EPA 8260B 10/26/18 00:42 ref trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 8325019 EPA 8260B 10/26/18 00:42 ref trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 8325019 EPA 8260B 10/26/18 00:42 ref trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 U ug/L 1 0.70 1.0 8325019 EPA 8260B 10/26/18 00:42 ref Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 8325019 EPA 8260B 10/26/18 00:42 ref Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 8325019 EPA 8260B 10/26/18 00:42 ref Vinyl acetate [108-05-4]^ 0.95 U ug/L 1 0.95 5.0 8325019 EPA 8260B 10/26/18 00:42 ref Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 8325019 EPA 8260B 10/26/18 00:42 ref Xylenes(Total)[1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 8325019 EPA 8260B 10/26/18 00:42 ref FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 9 Of 22 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103/12-SW3 Lab Sample ID:CB15731-03 Received: 10/22/18 10:00 Matrix: Surface Water Sampled:10/19/18 13:25 Work Order: CB15731 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 39 1 50.0 78 % 53-136 8J25019 EPA 8260E 10126118 00:42 ref Dlbromofluoromethane 48 1 50.0 95 % 67-129 8J25019 EPA 8260E 10126118 00:42 ref Toluene-& 44 1 50.0 87 % 59-134 8J25019 EPA 8260E 10126118 00:42 ref 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]^ 1.85 U ug/L 5 1.85 5.00 8323017 EPA 6020E 10/24/18 12:39 CM K Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 8323015 EPA 6010D 10/24/18 13:36 ]DH Barium [7440-39-3]^ 56.4 ug/L 1 1.10 10.0 8323015 EPA 6010D 10/24/18 13:36 ]DH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 8323015 EPA 6010D 10/24/18 13:36 ]DH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 8323015 EPA 6010D 10/24/18 13:36 ]DH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 8323015 EPA 6010D 10/24/18 13:36 ]DH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 8323015 EPA 6010D 10/24/18 13:36 ]DH Copper[7440-50-8]^ 2.72 J ug/L 1 1.60 10.0 8323015 EPA 6010D 10/24/18 13:36 ]DH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 8323015 EPA 6010D 10/24/18 13:36 ]DH Nickel[7440-02-0]^ 2.20 U ug/L 1 2.20 10.0 8323015 EPA 6010D 10/24/18 13:36 ]DH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 8323015 EPA 6010D 10/24/18 13:36 ]DH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 8323015 EPA 6010D 10/24/18 13:36 ]DH Thallium [7440-28-0]^ 0.550 U ug/L 5 0.550 5.00 8323017 EPA 6020E 10/24/18 12:39 CM K Vanadium [7440-62-2]^ 1.51 J ug/L 1 1.40 10.0 8323015 EPA 6010D 10/24/18 13:36 ]DH Zinc [7440-66-6]^ 11.8 ug/L 1 4.40 10.0 8323015 EPA 6010D 10/24/18 13:36 3DH Volatile Organic Compounds by GCMS SIM Isotope Dilution Analyte rCAS Numberl 1,4-Dioxane [123-91-1] Surrogates Toluene-d8 Results Flag Units DF MDL P L Batch Method Analyzed By Notes 1.2 U ug/L 1 1.2 2.0 8KO1028 EPA 8260C 11/01/18 19:21 KKW Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes 4.6 1 5.00 97 % 75-125 8K01028 EPA 6260C 11/01/1819:21 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 22 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4103/12-SW4 Lab Sample ID:CB15731-04 Received: 10/22/18 10:00 Matrix: Surface Water Sampled:10/19/18 14:15 Work Order: CB15731 Project: White Street LF-Phase I,II,III SW Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flan Units DF MDL Q Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/26/18 01:12 ref 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 8325019 EPA 8260B 10/26/18 01:12 ref 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 8325019 EPA 8260B 10/26/18 01:12 ref 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 8325019 EPA 8260B 10/26/18 01:12 ref 1,1-Dichloroethane [75-34-3]A 0.13 U ug/L 1 0.13 1.0 8325019 EPA 8260B 10/26/18 01:12 ref 1,1-Dichloroethene [75-35-4]A 0.21 U ug/L 1 0.21 1.0 8325019 EPA 8260B 10/26/18 01:12 ref 1,2,3-Trichloropropane [96-18-4]A 0.23 U ug/L 1 0.23 1.0 8325019 EPA 8260B 10/26/18 01:12 ref 1,2-Dibromo-3-chloropropane [96-12-8]A 0.48 U ug/L 1 0.48 1.0 8325019 EPA 8260B 10/26/18 01:12 ref 1,2-Dibromoethane [106-93-4]A 0.66 U ug/L 1 0.66 1.0 8325019 EPA 8260B 10/26/18 01:12 ref 1,2-Dichlorobenzene [95-50-1]A 0.19 U ug/L 1 0.19 1.0 8325019 EPA 8260B 10/26/18 01:12 ref 1,2-Dichloroethane [107-06-2]A 0.21 U ug/L 1 0.21 1.0 8325019 EPA 8260B 10/26/18 01:12 ref 1,2-Dichloropropane [78-87-5]A 0.10 U ug/L 1 0.10 1.0 8325019 EPA 8260B 10/26/18 01:12 ref 1,4-Dichlorobenzene [106-46-7]A 0.19 U ug/L 1 0.19 1.0 8325019 EPA 8260B 10/26/18 01:12 ref 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 8325019 EPA 8260B 10/26/18 01:12 ref 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 8325019 EPA 8260B 10/26/18 01:12 ref 4-Methyl-2-pentanone [108-10-1]A 1.1 U ug/L 1 1.1 5.0 8325019 EPA 8260B 10/26/18 01:12 ref Acetone [67-64-1]A 10 U ug/L 1 10 20 8325019 EPA 8260B 10/26/18 01:12 ref Acrylonitrile [107-13-1]A 3.5 U ug/L 1 3.5 10 8325019 EPA 8260B 10/26/18 01:12 ref Benzene [71-43-2]A 0.15 U ug/L 1 0.15 1.0 8325019 EPA 8260B 10/26/18 01:12 ref Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 8325019 EPA 8260B 10/26/18 01:12 ref Bromodichloromethane [75-27-4]A 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/26/18 01:12 ref Bromoform [75-25-2]A 0.22 U ug/L 1 0.22 1.0 8325019 EPA 8260B 10/26/18 01:12 ref Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 8325019 EPA 8260B 10/26/18 01:12 ref Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 8325019 EPA 8260B 10/26/18 01:12 ref Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/26/18 01:12 ref Chlorobenzene [108-90-7]A 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/26/18 01:12 ref Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 8325019 EPA 8260B 10/26/18 01:12 ref Chloroform [67-66-3]A 0.18 U ug/L 1 0.18 1.0 8325019 EPA 8260B 10/26/18 01:12 ref Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 8325019 EPA 8260B 10/26/18 01:12 ref cis-1,2-Dichloroethene [156-59-2]A 0.15 U ug/L 1 0.15 1.0 8325019 EPA 8260B 10/26/18 01:12 ref cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 8325019 EPA 8260B 10/26/18 01:12 ref Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/26/18 01:12 ref Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 8325019 EPA 8260B 10/26/18 01:12 ref Ethylbenzene [100-41-4]A 0.13 U ug/L 1 0.13 1.0 8325019 EPA 8260B 10/26/18 01:12 ref Iodomethane [74-88-4]A 1.7 U ug/L 1 1.7 5.0 8325019 EPA 8260B 10/26/18 01:12 ref Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 8325019 EPA 8260B 10/26/18 01:12 ref Styrene [100-42-5]A 0.11 U ug/L 1 0.11 1.0 8325019 EPA 8260B 10/26/18 01:12 ref Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/26/18 01:12 ref Toluene [108-88-3]A 0.14 U ug/L 1 0.14 1.0 8325019 EPA 8260B 10/26/18 01:12 ref trans-1,2-Dichloroethene [156-60-5]A 0.21 U ug/L 1 0.21 1.0 8325019 EPA 8260B 10/26/18 01:12 ref trans-1,3-Dichloropropene [10061-02-6]A 0.15 U ug/L 1 0.15 1.0 8325019 EPA 8260B 10/26/18 01:12 ref trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 8325019 EPA 8260B 10/26/18 01:12 ref Trichloroethene [79-01-6]A 0.15 U ug/L 1 0.15 1.0 8325019 EPA 8260B 10/26/18 01:12 ref Trichlorofluoromethane [75-69-4]A 0.24 U ug/L 1 0.24 1.0 8325019 EPA 8260B 10/26/18 01:12 ref Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 8325019 EPA 8260B 10/26/18 01:12 ref Vinyl chloride [75-01-4]A 0.32 U ug/L 1 0.32 1.0 8325019 EPA 8260B 10/26/18 01:12 ref Xylenes (Total) [1330-20-7]A 0.45 U ug/L 1 0.45 3.0 8325019 EPA 8260B 10/26/18 01:12 ref FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 11 of 22 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103/12-SW4 Lab Sample ID:CB15731-04 Received: 10/22/18 10:00 Matrix: Surface Water Sampled:10/19/18 14:15 Work Order: CB15731 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 38 1 50.0 76 % 53-136 8J25019 EPA 6260E 10126118 01:12 ref Dlbromofluoromethane 48 1 50.0 97 % 67-129 8J25019 EPA 6260E 10126118 01:12 ref Toluene-& 43 1 50.0 85 % 59-134 8J25019 EPA 6260E 10126118 01:12 ref 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]^ 1.85 U ug/L 5 1.85 5.00 8323017 EPA 6020E 10/24/18 12:43 CM K Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 8323015 EPA 6010D 10/24/18 13:39 ]DH Barium [7440-39-3]^ 61.7 ug/L 1 1.10 10.0 8323015 EPA 6010D 10/24/18 13:39 ]DH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 8323015 EPA 6010D 10/24/18 13:39 ]DH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 8323015 EPA 6010D 10/24/18 13:39 ]DH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 8323015 EPA 6010D 10/24/18 13:39 ]DH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 8323015 EPA 6010D 10/24/18 13:39 ]DH Copper[7440-50-8]^ 2.42 J ug/L 1 1.60 10.0 8323015 EPA 6010D 10/24/18 13:39 ]DH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 8323015 EPA 6010D 10/24/18 13:39 ]DH Nickel[7440-02-0]^ 2.20 U ug/L 1 2.20 10.0 8323015 EPA 6010D 10/24/18 13:39 ]DH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 8323015 EPA 6010D 10/24/18 13:39 ]DH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 8323015 EPA 6010D 10/24/18 13:39 ]DH Thallium [7440-28-0]^ 0.550 U ug/L 5 0.550 5.00 8323017 EPA 6020E 10/24/18 12:43 CM K Vanadium [7440-62-2]^ 1.61 J ug/L 1 1.40 10.0 8323015 EPA 6010D 10/24/18 13:39 ]DH Zinc [7440-66-6]^ 17.5 ug/L 1 4.40 10.0 8323015 EPA 6010D 10/24/18 13:39 3DH Volatile Organic Compounds by GCMS SIM Isotope Dilution Analyte rCAS Numberl 1,4-Dioxane [123-91-1] Surrogates Toluene-d8 Results Flag Units DF MDL P L Batch Method Analyzed By Notes 2.1 ug/L 1 1.2 2.0 8KO1028 EPA 8260C 11/01/18 19:57 KKW Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes 4.7 1 5.00 95 % 75-125 8K01028 EPA 6260C 11/01/1819:57 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 22 00� www.encolabs.com ANALYTICAL RESULTS Description: 4103/12-Trip Blank Lab Sample ID:CB15731-05 Received: 10/22/18 10:00 Matrix: Water Sampled:10/19/18 12:55 Work Order: CB15731 Project: White Street LF-Phase I,II,III SW Sampled By:ENCO Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flao Units DF MDL Q Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/26/18 01:43 ref 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 8325019 EPA 8260B 10/26/18 01:43 ref 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 8325019 EPA 8260B 10/26/18 01:43 ref 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 8325019 EPA 8260B 10/26/18 01:43 ref 1,1-Dichloroethane [75-34-3]A 0.13 U ug/L 1 0.13 1.0 8325019 EPA 8260B 10/26/18 01:43 ref 1,1-Dichloroethene [75-35-4]A 0.21 U ug/L 1 0.21 1.0 8325019 EPA 8260B 10/26/18 01:43 ref 1,2,3-Trichloropropane [96-18-4]A 0.23 U ug/L 1 0.23 1.0 8325019 EPA 8260B 10/26/18 01:43 ref 1,2-Dibromo-3-chloropropane [96-12-8]A 0.48 U ug/L 1 0.48 1.0 8325019 EPA 8260B 10/26/18 01:43 ref 1,2-Dibromoethane [106-93-4]A 0.66 U ug/L 1 0.66 1.0 8325019 EPA 8260B 10/26/18 01:43 ref 1,2-Dichlorobenzene [95-50-1]A 0.19 U ug/L 1 0.19 1.0 8325019 EPA 8260B 10/26/18 01:43 ref 1,2-Dichloroethane [107-06-2]A 0.21 U ug/L 1 0.21 1.0 8325019 EPA 8260B 10/26/18 01:43 ref 1,2-Dichloropropane [78-87-5]A 0.10 U ug/L 1 0.10 1.0 8325019 EPA 8260B 10/26/18 01:43 ref 1,4-Dichlorobenzene [106-46-7]A 0.19 U ug/L 1 0.19 1.0 8325019 EPA 8260B 10/26/18 01:43 ref 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 8325019 EPA 8260B 10/26/18 01:43 ref 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 8325019 EPA 8260B 10/26/18 01:43 ref 4-Methyl-2-pentanone [108-10-1]A 1.1 U ug/L 1 1.1 5.0 8325019 EPA 8260B 10/26/18 01:43 ref Acetone [67-64-1]A 10 U ug/L 1 10 20 8325019 EPA 8260B 10/26/18 01:43 ref Acrylonitrile [107-13-1]A 3.5 U ug/L 1 3.5 10 8325019 EPA 8260B 10/26/18 01:43 ref Benzene[71-43-2]A 0.15 U ug/L 1 0.15 1.0 8325019 EPA 8260B 10/26/18 01:43 ref Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 8325019 EPA 8260B 10/26/18 01:43 ref Bromodichloromethane [75-27-4]A 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/26/18 01:43 ref Bromoform [75-25-2]A 0.22 U ug/L 1 0.22 1.0 8325019 EPA 8260B 10/26/18 01:43 ref Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 8325019 EPA 8260B 10/26/18 01:43 ref Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 8325019 EPA 8260B 10/26/18 01:43 ref Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/26/18 01:43 ref Chlorobenzene [108-90-7]A 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/26/18 01:43 ref Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 8325019 EPA 8260B 10/26/18 01:43 ref Chloroform [67-66-3]A 0.18 U ug/L 1 0.18 1.0 8325019 EPA 8260B 10/26/18 01:43 ref Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 8325019 EPA 8260B 10/26/18 01:43 ref cis-1,2-Dichloroethene [156-59-2]A 0.15 U ug/L 1 0.15 1.0 8325019 EPA 8260B 10/26/18 01:43 ref cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 8325019 EPA 8260B 10/26/18 01:43 ref Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/26/18 01:43 ref Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 8325019 EPA 8260B 10/26/18 01:43 ref Ethylbenzene [100-41-4]A 0.13 U ug/L 1 0.13 1.0 8325019 EPA 8260B 10/26/18 01:43 ref Iodomethane [74-88-4]A 1.7 U ug/L 1 1.7 5.0 8325019 EPA 8260B 10/26/18 01:43 ref Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 8325019 EPA 8260B 10/26/18 01:43 ref Styrene [100-42-5]A 0.11 U ug/L 1 0.11 1.0 8325019 EPA 8260B 10/26/18 01:43 ref Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 8325019 EPA 8260B 10/26/18 01:43 ref Toluene [108-88-3]A 0.14 U ug/L 1 0.14 1.0 8325019 EPA 8260B 10/26/18 01:43 ref trans-1,2-Dichloroethene [156-60-5]A 0.21 U ug/L 1 0.21 1.0 8325019 EPA 8260B 10/26/18 01:43 ref trans-1,3-Dichloropropene [10061-02-6]A 0.15 U ug/L 1 0.15 1.0 8325019 EPA 8260B 10/26/18 01:43 ref trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 8325019 EPA 8260B 10/26/18 01:43 ref Trichloroethene [79-01-6]A 0.15 U ug/L 1 0.15 1.0 8325019 EPA 8260B 10/26/18 01:43 ref Trichlorofluoromethane [75-69-4]A 0.24 U ug/L 1 0.24 1.0 8325019 EPA 8260B 10/26/18 01:43 ref Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 8325019 EPA 8260B 10/26/18 01:43 ref Vinyl chloride [75-01-4]A 0.32 U ug/L 1 0.32 1.0 8325019 EPA 8260B 10/26/18 01:43 ref Xylenes (Total) [1330-20-7]A 0.45 U ug/L 1 0.45 3.0 8325019 EPA 8260B 10/26/18 01:43 ref FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 13 Of 22 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103/12-Trip Blank Lab Sample ID:CB15731-05 Received: 10/22/18 10:00 Matrix: Water Sampled:10/19/18 12:55 Work Order: CB15731 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 38 1 50.0 76 % 53-136 8J25019 EPA 8260E 10126118 01:43 ref Dlbromofluoromethane 48 1 50.0 96 % 67-129 8J25019 EPA 8260E 10126118 01:43 ref Toluene-& 43 1 50.0 87 % 59-134 8J25019 EPA 8260E 10126118 01:43 ref 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 8KO1030 EPA 8260C 11/02/18 00:07 KKW QR-06 Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes Toluene-& 4.8 1 5.00 95 % 75-125 8KO1030 EPA 8260C 11102118 00:07 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 22 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 8.725019 - EPA 5030E MS Blank (8125019-BLK3) Prepared: 10/25/2018 10:03 Analyzed: 10/25/2018 20:40 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 41 u9/L 50.0 61 53-136 47 u9/L 50.0 93 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 22 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch SJ25019 - EPA 5030E MS - Continued Blank (8325019-BLK3) Continued Prepared: 10/25/2018 10:03 Analyzed: 10/25/2018 20:40 Spike Source %REC RPD Analvte Result Flaq Q Units Level Result %REC Limits RPD Limit Notes Toluene-d8 43 u91L 50.0 87 59-134 LCS (8325019-BSI) Prepared: 10/25/2018 10:03 Analyzed: 10/25/2018 18:39 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 22 1.0 ug/L 20.0 109 75-133 Benzene 22 1.0 ug/L 20.0 112 80-134 Chlorobenzene 19 1.0 ug/L 20.0 95 80-120 Toluene 20 1.0 ug/L 20.0 98 71-120 Trichloroethene 19 1.0 ug/L 20.0 95 74-120 Matrix Spike (8325019-MS1) Prepared: 10/25/2018 10:03 Analyzed: 10/25/2018 19:09 Source: CB16362-08 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 113 75-133 Benzene 23 1.0 ug/L 20.0 0.15 U 116 80-134 Chlorobenzene 20 1.0 ug/L 20.0 0.17 U 101 80-120 Toluene 20 1.0 ug/L 20.0 0.14 U 98 71-120 Trichloroethene 21 1.0 ug/L 20.0 0.15 U 103 74-120 Matrix Spike Dup (8325019-MSD1) Prepared: 10/25/2018 10:03 Analyzed: 10/25/2018 19:39 Source: CB16362-08 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 21 1.0 ug/L 20.0 0.21 U 106 75-133 6 20 Benzene 22 1.0 ug/L 20.0 0.15 U 112 80-134 4 17 Chlorobenzene 20 1.0 ug/L 20.0 0.17 U 98 80-120 3 16 Toluene 19 1.0 ug/L 20.0 0.14 U 95 71-120 3 17 Trichloroethene 20 1.0 ug/L 20.0 0.15 U 99 74-120 3 22 Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch SJ23015 - EPA 3005A Blank (8323015-BLK3) Prepared: 10/23/2018 09:50 Analyzed: 10/24/2018 12:47 Spike Source %REC Analvte Result Flaq POL Units Level Result %REC Limits 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. RPD RPD Limit Notes Page 16 of 22 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 8.723015 - EPA 3005A - Continued LCS (8323015-BS3) Prepared: 10/23/2018 09:50 Analyzed: 10/24/2018 12:52 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 197 10.0 ug/L 200 98 80-120 Barium 209 10.0 ug/L 200 104 80-120 Beryllium 20.2 1.00 ug/L 20.0 101 80-120 Cadmium 20.8 1.00 ug/L 20.0 104 80-120 Chromium 199 10.0 ug/L 200 100 80-120 Cobalt 203 10.0 ug/L 200 101 80-120 Copper 195 10.0 ug/L 200 98 80-120 Lead 208 10.0 ug/L 200 104 80-120 Nickel 203 10.0 ug/L 200 101 80-120 Selenium 214 10.0 ug/L 200 107 80-120 Silver 195 10.0 ug/L 200 98 80-120 Vanadium 191 10.0 ug/L 200 96 80-120 Zinc 216 10.0 ug/L 200 108 80-120 Matrix Spike (8323015-MS3) Prepared: 10/23/2018 09:50 Analyzed: 10/24/2018 12:56 Source: CB15729-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 187 10.0 ug/L 200 7.60 U 93 75-125 Barium 828 10.0 ug/L 200 660 84 75-125 Beryllium 19.1 1.00 ug/L 20.0 0.160 U 96 75-125 Cadmium 17.8 1.00 ug/L 20.0 0.360 U 89 75-125 Chromium 187 10.0 ug/L 200 2.48 92 75-125 Cobalt 193 10.0 ug/L 200 12.8 90 75-125 Copper 195 10.0 ug/L 200 1.60 U 97 75-125 Lead 188 10.0 ug/L 200 3.10 U 94 75-125 Nickel 217 10.0 ug/L 200 31.3 93 75-125 Selenium 172 10.0 ug/L 200 6.20 U 86 75-125 Silver 190 10.0 ug/L 200 1.90 U 95 75-125 Vanadium 184 10.0 ug/L 200 1.40 U 92 75-125 Zinc 191 10.0 ug/L 200 4.40 U 96 75-125 Matrix Spike Dup (8323015-MSD1) Prepared: 10/23/2018 09:50 Analyzed: 10/24/2018 12:59 Source: CB15729-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 189 10.0 ug/L 200 7.60 U 95 75-125 1 20 Barium 835 10.0 ug/L 200 660 87 75-125 0.8 20 Beryllium 19.4 1.00 ug/L 20.0 0.160 U 97 75-125 1 20 Cadmium 18.0 1.00 ug/L 20.0 0.360 U 90 75-125 0.9 20 Chromium 190 10.0 ug/L 200 2.48 94 75-125 2 20 Cobalt 197 10.0 ug/L 200 12.8 92 75-125 2 20 Copper 198 10.0 ug/L 200 1.60 U 99 75-125 2 20 Lead 193 10.0 ug/L 200 3.10 U 96 75-125 2 20 Nickel 222 10.0 ug/L 200 31.3 95 75-125 2 20 Selenium 168 10.0 ug/L 200 6.20 U 84 75-125 2 20 Silver 192 10.0 ug/L 200 1.90 U 96 75-125 1 20 Vanadium 186 10.0 ug/L 200 1.40 U 93 75-125 1 20 Zinc 195 10.0 ug/L 200 4.40 U 97 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 17 Of 22 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 8.723015 - EPA 3005A - Continued Post Spike (8]23015-PS3) Prepared: 10/23/2018 09:50 Analyzed: 10/24/2018 13:01 Source: CB15729-01 Analvte Arsenic Barium Beryllium Cadmium Chromium Cobalt Copper Lead Nickel Selenium Silver Vanadium Zinc Batch BJ23017 - EPA 3005A Result Flao POL Units 0.190 0.0100 mg/L 0.838 0.0100 mg/L 0.0198 0.00100 mg/L 0.0183 0.00100 mg/L 0.195 0.0100 mg/L 0.200 0.0100 mg/L 0.201 0.0100 mg/L 0.191 0.0100 mg/L 0.224 0.0100 mg/L 0.169 0.0100 mg/L 0.204 0.0100 mg/L 0.190 0.0100 mg/L 0.199 0.0100 mg/L Spike Source %REC Level Result %REC Limits RPD 0.200-0.00593 95 80-120 0.200 0.660 89 80-120 0.0200-0.000106 99 80-120 0.0200-0.00111 91 80-120 0.200 0.00248 96 80-120 0.200 0.0128 94 80-120 0.200-0.00250 100 80-120 0.200 0.00139 95 80-120 0.200 0.0313 96 80-120 0.200-0.0247 85 80-120 0.200-0.000149 102 80-120 0.200-0.000636 95 80-120 0.200 0.00331 98 80-120 RPD Limit Notes Blank (8323017-BLK3) Prepared: 10/23/2018 09:57 Analyzed: 10/24/2018 10:13 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 (8723017-BS3) Prepared: 10/23/2018 09:57 Analyzed: 10/24/2018 10:21 Spike Source %REC RPD Analvte Result Flaq Q Units Level Result %REC Limits RPD Limit Notes Antimony 19.8 1.00 ug/L 20.0 99 80-120 Thallium 19.2 1.00 ug/L 20.0 96 80-120 Matrix Spike (8323017-MS3) Prepared: 10/23/2018 09:57 Analyzed: 10/24/2018 10:25 Source: CB14763-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 96.4 5.00 ug/L 100 1.85 U 96 75-125 Thallium 93.5 5.00 ug/L 100 0.550 U 94 75-125 Matrix Spike Dup (8323017-MSD3) Prepared: 10/23/2018 09:57 Analyzed: 10/24/2018 10:30 Source: CB14763-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 96.9 5.00 ug/L 100 1.85 U 97 75-125 0.5 20 Thallium 93.9 5.00 ug/L 100 0.550 U 94 75-125 0.4 20 Post Spike (8323017-PS1) Prepared: 10/23/2018 09:57 Analyzed: 10/24/2018 10:34 Source: CB14763-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 19.8 1.00 ug/L 20.0 0.0582 99 75-125 Thallium 19.2 1.00 ug/L 20.0 0.0193 96 75-125 Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Batch BK0102B - EPA 5030B MS FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 18 Of 22 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Batch SK01028 - EPA 5030E MS - Continued Blank (8K03028-BLKI) Prepared: 11/01/2018 00:00 Analyzed: 11/01/2018 10:32 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 4.6 u91L 5.00 92 75-125 LCS (8K01028-BS1) Prepared: 11/01/2018 00:00 Analyzed: 11/01/2018 09:27 Analvte Result Flaq 1,4-Dioxane 27 POL Units 2.0 ug/L Spike Source Level Result 25.0 %REC %REC Limits RPD 109 80-133 RPD Limit Notes Toluene-d8 4.6 u91L 5.00 91 75-125 LCS Dup (8K03028-BSD1) Prepared: 11/01/2018 00:00 Analyzed: 11/01/2018 09:59 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 28 2.0 ug/L 25.0 112 80-133 3 19 QM-10 Toluene-d8 4.6 u9/L 5.00 93 75-125 QM-10 Batch BK01030 -EPA 5030B MS Blank (8K03030-BLKI) Prepared: 11/01/2018 13:46 Analyzed: 11/01/2018 22:55 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 1.2 Ll 2.0 ug/L Toluene-d8 4.2 u91L 5.00 64 75-125 LCS (8K01030-BS1) Prepared: 11/01/2018 13:46 Analyzed: 11/01/2018 21:44 Spike Source %REC RPD Analvte Result Flaa POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 16 2.0 ug/L 25.0 64 80-133 QR-06 Toluene-d8 4.4 u91L 5.00 89 75-125 LCS Dup (8K03030-BSD1) Prepared: 11/01/2018 13:46 Analyzed: 11/01/2018 22:20 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 30 2.0 ug/L 25.0 118 80-133 60 19 QR-06, QM-10 Toluene-& 4.4 u91L 5.00 87 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 22 (� �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. QM-10 LCS/LCSD were analyzed in place of MS/MSD. QR-06 The RPD value for the LCS/LCSD was outside of QC acceptance limits. FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 20 of 22 3 n \ 3 x `Cb m °c C m w' m m � O� m o a - O J' J c C 1 N F J T7 y m 1 LJ m n 3 V 3 N C c � o m pD 3 m 5 O m N ¢° MOO c O 3 m 1 y m m � j j Cmi m w D D o v' a p .w � O m � n m m m 3 ° y3 n m O J J n v o 0 J m m 3 3 3 m m m o ` m _ N � O _ O Z 0 m m ` a `. COa O N 00 ` HE O %X A • Z w O Z � w `D O 3 = m rn O lJ m O x, m o J a m m 3 o J o o (pD 9 o v c w m m O Mimi DN 3 w 3 m W n N a i71 n rn n Z (� ° 4 w (O m 3 OD V, pr ro IA 0 0 r W 0 042. 3 —4 (A I 1p � 000n n N N 0 C) D T m jr J W A Nm V S A r� fA co31 V '0V CD r Teo z M T 0 c> �� J m Jz z i i o. J ly w n `C o o 33 iD m v I G.� x w J u%'o N � ym, O may. N J r r A N r Y � ♦; r L m pp ' A N o (/� :D N o m rn<.m w 3 _m I N W (n i m c � m N o � � 8260E Appendix 1,8260C SIM ID Ag,As,Ba,se,Cd,Co,Cr.Cu,M,Pb,Sb,Se, Se,M,V,Zn 0 A D 7 Z �qg N O � a m a T y D a w O 3 '• g W N w m m r v 0 of m 0 1"!r'1 p I 8� c CD CDT 0 CD/��i o rn '. m a p VI j •<m N c 3 CDl N N 3 o Ai CD CA) I CCD Q �. Q o v a '" .. � Page 21 of 22 Sample Preservation Verification ENCO Cary Work Order: %CB15731 Project: White Street LF-Phase 1,11,111 SW Client: Golder Associates, Inc. (G0007) Project#: 1668421.104 Logged In: 22-Oct-18 13:06 Logged By: John C King Preservation Check Performed By: 0113 Date/Time: /0 (3a 1 a' 12 �C C B 15731-01 Cont Type Pres (pH) Requirement pH Checked / In Control pH Adjusted Date/Time Adjusted Reagent Used/Comments A 250mLP+HNO3 <2 / N / NA Y / / NA CB15731-02 Cont T e yp Pres (pH) Requirement pH Checked ! In Control Date/Time PH Adjusted Adjusted Reagent Used/Comments A 250mLP+HNO3 <2 ;/ N / NA Y / Ii / NA . CB15731-03 Cont T e yp Pres (pH) Requirement pH Checked / In Control Date/Time pH Adjusted Adjusted Reagent Used/Comments A 250mLP+HNO3 <2 / N / NA Y / (,N,)/ NA CB15731-04 Cont T e yp Pres (pH) pH Checked / Date/Time PH Adjusted Reagent Used/Comments Requirement In Control Adiusted A 250mLP+HNO3 <2 �' / N / NA Y / 'N / NA Rea ent Name ID 1 2 pH Strip ID: Rea ent Name ID 3 4 Rea ent Name ID 5 6 C:\ELM NT\Print\wko_PreservationCheck. rpt Page 22 of 22 Page 1 WORK ORDER Printed: 11/5/2018 10:26:35AM CB15731 ENCO Cary Sample Receipt Conditions Client: Golder Associates, Inc. (G0007) Lab Project Mgr: Stephanie Franz Project: White Street LF-Phase I,II,III SW Project Number: 1668421.104 PO #: Report To: Invoice To: Golder Associates, Inc. (G0007) City of Greensboro (CI034) Dusty Reedy Richard Lovett 5B Oak Branch Drive PO Box 3136 Greensboro, NC 27407 Greensboro, NC 27402-3136 Phone: (336) 852-4903 Phone :(336) 373-4188 Fax: (336) 852-4904 Fax: Received By: David E. Wilder Date Received: 22-Oct-18 10:00 Logged In By: John C King Date Logged In: 22-Oct-18 13:06 Work Order Comments: C-4450 received at 2.5°C Containers Intact Y Containers Properly Preserved Y Proper Containers Received Y All Samples in PreLog Received Y COC/Labels Agree Y Custody Seals Intact Y Volatile Containers Preserved Y Volatile Containers Headspace Free Y Aqueous Samples Checked for Residual Cl N Received On Ice Y Temperature Corrected Y Reviewed By Date Page 1 of 1 GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL GOLDER LABORATORY DATA REVIEW Page 1 of 3 Project Name: White Street Landfill - Phase I Project Reference Number: 1668421.103 Sampling Event Date: October 16 - 19, 2018 Review Date: January 18, 2019 Initials: EV Report #: C1315731 �, / Signature: G�/ �/ G Date: f- t? -t F QA/QC Sign Off: _ / � ���� Date: /-t 014 `7 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 X NC Appendix II NC Subtitle D Leachate List Other: 1.0 CHAIN OF CUSTODY (COC) REVIEW EV COC was properly signed by all parties. EV Correct project name and number are on the form. EV Sample receipt condition at laboratory was acceptable. EV 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 EV Holding times for extraction and/or analysis were met for each analytical Method (see below for reference). Review Criteria Method Anallytes 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 EV Laboratory analyzed at least one internal blank for each method, where applicable. EV Laboratory blank is interference -free. EV Surrogate recoveries are provided for each analytical method, where applicable. EV Surrogate recoveries for each method are within the acceptable limits (i.e., at least 50% of the surrogates were within range). EV MS/MSD/LCS data results are provided for each analytical method. LCS/LCSD were analyzed in place of the MS/MSD for the 8260C SIM ID analysis. EV MS/MSD/LCS recoveries for each method are within the acceptable limits (i.e., at least 1 of the 3 were within range). Precision between duplicate spikes of 1,4-Dioxane exceeded acceptance criteria for the LCS/LCSD. 4.0 ANALYTE LISTS/METHODS EV The proper number of constituents are present for each analyte list as identified above (including detects where applicable). EV Proper EPA SW-846 analytical methods were used for analysis. GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL O D E LABORATORY DATA REVIEW Page 3 of 3 5.0 DATA REPORTING EV All analytical reporting associated with the event was performed by the contracted lab. EV 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. EV 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. EV The report provides the reporting limit for each constituent. EV The results were reported at or below their proper reporting limits (i.e. at or below standards, at MDLs). 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. LCS/LCSD were analyzed in place of the MS/MSD for the 8260C SIM ID analysis. Precision between duplicate spikes of 1,4-Dioxane exceeded acceptance criteria for the LCS/LCSD. EV No inorganic or organic constituents were reported above their applicable Surface Water Standards for surface water points. Copper (acute = 3.6 ug/L, chronic 2.7 ug/L) — consistent with historical — all estimated below PQL of 10 ug/L • SW-1 (3.11 J ug/L) • SW-2 (3.84 J ug/L) • SW-3 (2.72 J ug/L) • SW-5 (3.55 J ug/L) EV 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). ➢ 1,4 Dioxane was detected for the first time at SW-4 and SW-5. However, this was the first time surface water was analyzed for this constituent. EV Other report issues/Communications with laboratory/etc.: (� GOLDER golder.com