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Home My WebLink About8003_Rowan_MSWLF_CDLF_Jan20GW_FID1395020_20200331R USE ONLY [:]PaperReport ❑Electronic Data - Email CD (data loaded: Yes / No) Doc/Event #: NC DENR I IEnvironmental Monitoring Division of Waste Management - Solid Waste Reporting Form Notice: This form and any information attached to it are "Public Records" as defined in NC General Statute 132-1. As such, these documents are available for inspection and examination by any person upon request (NC General Statute 132-6). Instructions: Prepare one form for each individually monitored unit. Please type or print legibly. Attach a notification table with values that attain or exceed NC 2L groundwater standards or NC 2B surface water standards. The notification must include a preliminary analysis of the cause and significance of each value. (e.g. naturally occurring, off -site source, pre-existing condition, etc.). Attach a notification table of any groundwater or surface water values that equal or exceed the reporting limits. Attach a notification table of any methane gas values that attain or exceed explosive gas levels. This includes any structures on or nearby the facility (NCAC 13B .1629 (4)(a)(i). Send the original signed and sealed form, any tables, and Electronic Data Deliverable to: Compliance Unit, NCDENR-DWM, Solid Waste Section, 1646 Mail Service Center, Raleigh, NC 27699-1646. Solid Waste Monitoring Data Submittal Information Name of entity submitting data (laboratory, consultant, facility owner): Golder Associates NC, Inc. (on behalf of Rowan County) Contact for questions about data formatting. Include data preparer's name, telephone number and E-mail address: Name: Rachel P. Kirkman, PG Phone: 336-852-4903 E-mail: rkirkman@golder.com NC Landfill Rule: Actual sampling dates (e.g., Facility name: Facility Address: Facility Permit # (.0500 or. 1600) October 20-24, 2006) Rowan County Landfills 789 Campbell Road 80 03 .1600 and .500 January 13-15, 2020 (Active MSW and Closed C&D) Woodleaf, NC 27054 Environmental Status: (Check all that apply) ❑ Initial/Background Monitoring ❑X Detection Monitoring of data submitted: (Check all that apply) Groundwater monitoring data from monitoring wells ❑ Groundwater monitoring data from private water supply wells ❑ Leachate monitoring data Surface water monitoring data ❑ Q Assessment Monitoring Methane gas monitoring data Corrective action data (specify) Other(specify) ❑ Corrective Action 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. Rachel P. Kirkman, PG Facility Representative Name (Print) Associate and Senior Consultant Title 3/30/2020 Signature Date Golder Associates NC, Inc., 5B Oak Branch Drive, Greensboro, NC 27407 Facility Representative Address C-2862 NC PE Firm License Number (if applicable effective May 1, 2009) Revised 6/2009 336-852-4903 (Area Code) Telephone Number Affix NC Licensed/ 2 )fessional Geologist Seal e+ CARD ;ivENSF'•:��L Q :_9 4 GOLDER FIRST SEMI-ANNUAL 2020 SAMPLING EVENT Active Rowan County Landfill, Permit No. 80-03, Rowan County, North Carolina Submitted to: Ms. Jaclynne Drummond, Compliance Hydrogeologist North Carolina Department of Environmental Quality Division of Waste Management - Solid Waste Section 2090 US Highway 70 Swannanoa, North Carolina 28778 (828) 296-4706 Submitted by: Golder Associates NC, Inc. 5B Oak Branch Drive, Greensboro, North Carolina, +1 336 852-4903 19123756 March 30, 2020 March 30, 2020 Distribution List Caleb Sinclair, Rowan County Environmental Management, 1102 N Long Street Extension Salisbury, NC 28144, caleb.sinclair@rowancountync.gov Jeff Boyd, Landfill Manager, 789 Campbell Road, Woodleaf, NC 27054, (704) 278-2211 Mike Plummer, PE, HDR, 440 South Church Street, 10th Floor, Charlotte, NC 28202, (704) 338 6719, mplummer@hdrinc.com (electronic copy) 19123756 4 GOLDER March 30, 2020 Executive Summary 19123756 On behalf of Rowan County Department of Environmental Management (Rowan County), Golder Associates NC, Inc. (Golder) is submitting the enclosed Water Quality Monitoring Report, which documents the results of the January 13 - 16, 2020, compliance monitoring event. The facility consists of an active municipal solid waste (MSW) landfill and a closed construction and demolition debris (C&D) landfill, each with a permitted monitoring network of wells and surface water locations. The MSW facility reverted to detection monitoring for the first semi- annual 2018 water quality monitoring event after receiving approval from the North Carolina (NC) Department of Environmental Quality (DEQ) on June 5, 2018; in this same correspondence, statistically -derived, site -specific groundwater protection standards (GPS) were approved for thallium and vanadium. The French drain sampling point was dry during this event and no samples were obtained. Surface water and groundwater samples were analyzed for 1,4-dioxane per the May 29, 2018, memorandum from the NC Department of Environmental Quality (DEQ). Two inorganic constituents (cobalt and vanadium) were detected at estimated concentrations above their respective groundwater standards [Interim Maximum Allowable Concentrations (IMACs)] in samples from one or more downgradient monitoring points at the MSW landfill during this event. As these are estimated (i.e., non - quantifiable) concentrations below the method reporting limits, per 15A NCAC 02L .0202 (b)(1), no regulatory actions should be taken for estimated values below the reporting limits (a.k.a. PQLs) that are above groundwater standards. In a correspondence sent to S&ME, Inc., dated September 12, 2008, the NC DEQ approved an ASD for thallium and vanadium as naturally occurring metals. Per 15A NCAC 02L .0202 (b)(3), concentrations of naturally occurring substances that exceed the NC 2L Groundwater Standards are exempt (i.e., not a violation of the standard). These exceedances were previously reported in the November 30, 2018, Alternate Source Demonstration and 14-day notification, which provided proposed alternate GPS and provided evidence that cobalt and vanadium are naturally occurring. Rowan County monitors groundwater at the closed C&D landfill for parameters listed in 15A NCAC 13B .0544 of the NCSWMR. Three NC Appendix I metals (cobalt, thallium and vanadium) were detected at estimated concentrations above their respective IMAC standards but below their respective PQLs at MW-18R (cobalt and thallium) and MW-19 (vanadium) during this event. Indicator parameters iron, manganese, and total dissolved solids were also detected above their respective NC 2L Standards during this event. One organic constituent (1,4-dioxane) was detected in the samples from MW-18R and MW-19 at concentrations above the groundwater protection standard; this constituent was analyzed per the May 30, 2018, memorandum and is not part of the facility permit -required testing. Two NC Appendix I inorganic constituents (copper and lead) were detected at surface water monitoring locations (copper at all locations and lead at SW-2 and SW-4) during this event at estimated concentrations above their respective surface water standards, as they have been previously. No actions are warranted for these estimated concentrations. Constituent concentrations reported for the leachate samples collected during this sampling event are typical for leachate at this facility. Based on these results, Rowan County Environmental Services will continue monitoring the uppermost aquifer beneath this facility in accordance with the requirements of the Detection Monitoring Program as outlined in Title 15A NCAC 13B .1633 of the NCSWMRs for the MSW and the Detection Monitoring Program as outlined in Title 4 GOLDER March 30, 2020 19123756 15A NCAC 13B .0544 of the NCSWMRs for the C&D facility. A notification for newly identified GPS exceedances for the MSW facility is submitted under separate cover. 4 GOLDER March 30, 2020 Table of Contents 19123756 1.0 INTRODUCTION.............................................................................................................................................2 1.1 Site Description and Background.........................................................................................................2 1.2 Compliance Monitoring History............................................................................................................2 1.3 Hydrogeologic Setting..........................................................................................................................3 2.0 FIELD PROGRAM, MONITORING RESULTS, AND DISCUSSION.............................................................4 2.1 Visual Inspection Program...................................................................................................................4 2.2 Well Network and Groundwater Elevation Measurements..................................................................4 2.3 January 2020 Groundwater and Surface Water Monitoring Event......................................................4 2.4 Laboratory Analysis Program...............................................................................................................5 3.0 LABORATORY AND FIELD QA/QC..............................................................................................................5 4.0 DATA EVALUATION......................................................................................................................................6 4.1 North Carolina Groundwater and Surface Water Quality Standard Comparisons...............................6 4.1.1 MSW Facility...................................................................................................................................6 4.1.2 C&D Facility....................................................................................................................................6 4.1.3 Surface Water.................................................................................................................................6 5.0 CONCLUSIONS..............................................................................................................................................6 6.0 REFERENCES................................................................................................................................................6 DRAWING APPENDICES APPENDIX A GROUNDWATER AND SURFACE WATER SAMPLING LOGS APPENDIX B JANUARY 2020 GROUNDWATER AND SURFACE WATER CERTIFICATE -OF -ANALYSIS, CHAIN -OF - CUSTODY FORMS AND LABORATORY DATA REVIEWS .,i GOLDER 1 March 30, 2020 1.0 INTRODUCTION 19123756 This report summarizes the monitoring results from the January 13 - 16, 2020, water quality monitoring event at the Rowan County Landfill located in Rowan County, North Carolina (NC) and operated under the NC Solid Waste Permit No. 80-03. An active municipal solid waste (MSW) landfill, operated by Rowan County Environmental Services, and a closed construction and demolition (C&D) landfill are located within the property boundary. Rowan County (the County) has owned and operated the MSW and C&D landfill under permit No. 80- 03 since 1989. The C&D landfill located on site ceased accepting waste on June 30, 2008. The MSW landfill monitors water quality (i.e., groundwater, surface water, and leachate) semi-annually in accordance with Title 15A of the North Carolina Administrative Code (NCAC) Subchapter 13B .1633. The C&D landfill also monitors water quality (i.e., groundwater and surface water) semi-annually in accordance with 15A NCAC 13B .0544. 1.1 Site Description and Background The location of the facility is shown on the inlay on Drawing 1. As presented, the Rowan County solid waste facility is located approximately 1.5 miles southeast of the town of Woodleaf on Campbell Road in Rowan County, NC. The landfill facility covers approximately 355 acres of land and is bounded to the north by Campbell Road, to the south by Second Creek, and to the east and west by wooded, residential and agricultural properties. Surrounding land use is primarily rural residential, agricultural, or undeveloped and wooded. Access to the facility is via a driveway off of Campbell Road. As discussed, the facility is comprised of an active Subtitle D MSW landfill unit and a closed C&D landfill unit (Drawing 1). Topographic elevations at the facility range from approximately 766 feet above mean sea level (AMSL) east of the existing scale house to approximately 635 feet AMSL at the edge of Second Creek along the southern property boundary. Stormwater drainage from the landfill and surrounding areas is directed by one of the two main drainage features toward Second Creek, which flows from the southwest to the northeast (S&ME October 2005). 1.2 Compliance Monitoring History Groundwater monitoring at the facility was initiated in December 1989 under the Detection Monitoring Program for MSW landfills. Currently, water quality monitoring is performed semi-annually at the MSW facility in accordance with the approved Water Quality Monitoring Plan (WQMP) and the NC Solid Waste Management Regulations (NCSWMR). The active MSW landfill monitoring network is currently comprised of 15 active monitoring wells (MW-1, MW-7, MW-9, MW-11, MW-12, MW-13, MW-16, MW-20, MW-23, MW-23A, MW-24R, MW-25, MW-26, MW-27, and MW-28R), which monitor the uppermost aquifer beneath the facility. Monitoring well MW-6, MW-27A, and MW-28 are monitored during each semi-annual sampling event for water levels only. Three monitoring wells (i.e., MW-17, MW-18R, and MW-19) monitor the C&D landfill located to the east of the active MSW landfill. Monitoring wells MW-3, MW-4, MW-5, MW-10, MW-18, and MW-24 have been decommissioned. Following two consecutive Assessment Monitoring event without a detection of NC Appendix II VOCs, the County reverted to the Detection Monitoring Program during the August 2018 monitoring event as governed by 15A NCAC 13B .1633 of the NCSWMR, after receiving approval from the NC DEQ to revert to detection monitoring. The County was previously in Assessment Monitoring due to detections of tetrachloroethene and trichlorofluoromethane in samples from monitoring well MW-28. On July 11, 2017, MW-28R was installed as a replacement well for MW-28, as approved in a correspondence from NC DEQ dated December 13, 2016. After the completion of a second sampling event of MW-28R on November 1, 2017, a request was made to the NC DEQ to revert to detection monitoring after two consecutive monitoring events without the detection of volatile organic compounds (VOCs) in the replacement monitoring well MW-28R. The request to revert back to detection .,i GOLDER March 30, 2020 19123756 monitoring for the first semi-annual 2018 water quality monitoring event was approved by NC DEQ on June 5, 2018. Five surface water locations (SW-1 through SW-5) are also sampled; SW-5 monitors surface water adjacent to the C&D landfill, the other four surface water locations monitor surface water surrounding the active MSW landfill; SW-1 is the upstream monitoring report. A French drain is also sampled semi-annually to monitor a groundwater discharge point located underneath the Phase III landfill unit at the active MSW landfill. The locations of monitoring points within the current monitoring network are shown on Drawing 1 1.3 Hydrogeologic Setting Geologically, the facility is located within the Charlotte Belt of the Piedmont Physiographic Province of NC (NCGS 1985). The Charlotte Belt is composed of Precambrian and Paleozoic bedrock, which is dominantly plutonic with plutons ranging from granite to gabbro. The oldest rocks in the Charlotte Belt are mafic gneisses, amphibolites, metagabbros and metavolcanic rocks, with lesser amounts of biotite gneiss, granitic gneiss, mica schist, quartzite and ultramafic rocks. Mica schists and mica hornblende gneisses locally have been intruded by granite. The rocks underlying the facility consist of mostly diorite, gabbro, and granite (NCGS 1985). The uppermost groundwater beneath the facility is present in a shallow, unconfined aquifer comprised of partially weathered, fractured, meta -volcanic rock. Groundwater occurs at depths ranging from near ground surface in valleys to more than 100 feet below grade on steep hills (S&ME October 2005). Depth -to -water measurements obtained during the January 2020 sampling event and summarized in Table 1 were used to prepare a groundwater surface contour map presented as an overlay on Drawing 1. As presented, groundwater in the uppermost aquifer beneath the facility generally flows to the southwest toward Second Creek. The groundwater surface contour map and interpreted flow directions are consistent with previously submitted groundwater surface contour maps for this facility. Based on the January 2020 groundwater surface contour map, the hydraulic gradient in the shallow aquifer underlying the facility averaged approximately 0.037. The average effective porosity of the shallow aquifer is estimated at 0.26 (S&ME October 2005). Using the above values, the estimated rate of groundwater flow for the uppermost aquifer beneath the facility was calculated using the following modified Darcy's Law equation: Kl qW n e where Vgw = average linear velocity (feet/year), K = hydraulic conductivity (feet/year), i = horizontal hydraulic gradient, and ne = effective porosity. As presented on Table 2, the average estimated linear groundwater flow velocity under the waste management units ranges from approximately 294 feet/year in the MSW area to approximately 519 feet/year in the C&D area, which is generally consistent with previous estimates. The linear velocity equation above makes the simplified assumptions of a homogeneous and isotropic aquifer. Therefore, this equation represents an estimated average value for the uppermost aquifer and does not account for heterogeneous and/or anisotropic conditions that are likely present in the uppermost aquifer at the facility. 4 GOLDER March 30, 2020 19123756 2.0 FIELD PROGRAM, MONITORING RESULTS, AND DISCUSSION Field activities conducted as part of the January 2020 sampling event are discussed in the following sections. 2.1 Visual Inspection Program In order to determine if a potential release has occurred at the earliest possible time, the visual inspection program is used by sampling personnel at the Rowan County landfills. 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 in the vicinity of monitoring locations. Standing water was noted around MW-18R. 2.2 Well Network and Groundwater Elevation Measurements As presented in Section 1.3 of this report, the current groundwater monitoring network at the Rowan County landfills (i.e., the active MSW and the closed C&D landfill) consists of 18 groundwater monitoring wells (i.e., 15 monitor groundwater at the MSW landfill and 3 monitor groundwater at the C&D landfill). Monitoring well construction information is summarized in Table 3 and the well locations are shown on Drawing 1. The network of monitoring wells was constructed to target the preferential flow path for groundwater underlying waste disposal areas. Water quality was monitored during the January 2020 water quality monitoring event (WQME) in accordance with the revised WQMP, which was approved by NC DEQ as part of the Phase IV expansion at the active MSW landfill in March 2013. Based on the WQMP monitoring wells MW-9 and MW-16 are the MSW landfill's background wells and are located hydraulically upgradient of the waste disposal area. Monitoring wells MW-1, MW-7, MW-11, MW-12, MW-13, MW-20, MW-23, MW-23A, MW-24R, MW-25, MW-26, MW-27, and MW-28R are located downgradient or side gradient of the waste disposal area and represent the facility's downgradient compliance wells. The C&D unit is monitored by upgradient well MW-17 and downgradient compliance wells MW-18R and MW-19. Depth -to -water measurements were recorded to the nearest 0.01 foot prior to initiating groundwater purging and sampling activities. The monitoring point summary and respective water level elevations for this event along with historical data are presented in Table 1. 2.3 January 2020 Groundwater and Surface Water Monitoring Event Personnel from Golder visited the facility on January 13 - 16, 2020, to purge and sample the 21 compliance groundwater monitoring wells. Samples were also collected for surface water monitoring locations and the facility's Ieachate pond. The French Drain monitoring point was dry during this event and no samples were obtained. The groundwater monitoring wells were purged and sampled using dedicated bladder pumps and micro -purge procedures. Measurements of pH, specific conductivity, dissolved oxygen (DO), oxidation-reduction potential (ORP), temperature, turbidity, and depth -to -water were recorded each time the flow -cell volume was replaced 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 water, up to a maximum purge rate of 300 milliliters per minute. Micro -purging was continued until stabilization was indicated by the field parameters. ,.,i GOLDER March 30, 2020 19123756 Prior to sampling, the laboratory -supplied sample containers used to collect the water samples detailed above 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 micro -purge groundwater samples were collected directly from the dedicated bladder pump discharge lines in the labeled, laboratory -supplied, pre -preserved sample containers after purging was completed based on stabilization of the field parameters. After collection, the sample containers were placed in a cooler on ice, under chain -of -custody control. Copies of the sampling logs detailing the sample ID, the personnel collecting the samples, the sampling location, the sampling equipment, the sampling method, general field observations, and field parameters are presented in Appendix A. Typically, the surface water samples and the French drain groundwater samples are collected by lowering the sample containers directly into the surface water flow with the container opening facing away from the stream flow, taking care to prevent the overflow of the sample containers and to minimize sample induced turbidity. If necessary (i.e., if access to the sample point was limited) a stainless -steel dipper is lowered into the surface water flow and filled. The water sample collected in the dipper is then transferred directly to the provided appropriate sample containers. The leachate samples were collected directly from the leachate pond. Measurements of pH, conductivity, temperature, turbidity, DO, and ORP were recorded during the collection of the surface water samples directly from the point of sampling, and measurements of pH, specific conductivity, and temperature were recorded for the leachate sample from a separate sampling container. 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 sample ID, sampling personnel, sampling equipment, sampling location, sampling method, field observations, and water -quality measurements. 2.4 Laboratory Analysis Program The groundwater, surface water, and leachate samples collected on January 13 - 16, 2020, from the active MSW landfill were delivered by courier to Environmental Conservation Laboratories, Inc. (ENCO) of Cary, NC under chain -of -custody control for analysis of NC Appendix I constituents plus 1,4-dioxane. Groundwater samples collected from the closed C&D landfill were analyzed for the listed NC Appendix I constituents plus 1,4-dioxane, tetrahydrofuran, and the additional required C&D parameters under NCAC 13B.0544. Surface water samples were analyzed for NC Appendix I plus 1,4-dioxane per Solid Waste Section (SWS) policy requirements (i.e., May 30, 2018, memorandum). The samples were received at the laboratory on January 14, 15, and 17, 2020 in good condition and properly preserved. 3.0 LABORATORY AND FIELD QA/QC A field blank was collected by Golder personnel as part of the January 2020 groundwater sampling event. In addition to the field blank, a laboratory -prepared trip blank accompanied the VOC sample containers for the sampling event to and from the laboratory. ENCO analyzed the field blank and method blanks for the same constituents as the groundwater samples, and the trip blank for NC Appendix I VOCs. A review of the laboratory data was performed by Golder personnel (included in Appendix B). Based on the data review, no data qualification was necessary. ' GOLDER March 30, 2020 19123756 4.0 DATA EVALUATION The results of the data evaluations are presented in the following sections. 4.1 North Carolina Groundwater and Surface Water Quality Standard Comparisons 4.1.1 MSW Facility Two inorganic constituents (cobalt and vanadium) were detected at estimated concentrations above their respective groundwater standards [Interim Maximum Allowable Concentrations (IMACs)] in samples from one or more downgradient monitoring points at the MSW landfill during this event. As these are estimated (i.e., non - quantifiable) concentrations below the method reporting limits, per 15A NCAC 02L .0202 (b)(1), no regulatory actions should be taken for estimated values below the reporting limits (a.k.a. PQLs) that are above groundwater standards. In a correspondence sent to S&ME, Inc., dated September 12, 2008, the NC DEQ approved an ASD for thallium and vanadium as naturally occurring metals. Per 15A NCAC 02L .0202 (b)(3), concentrations of naturally occurring substances that exceed the NC 2L Groundwater Standards are exempt (i.e., not a violation of the standard). These exceedances were previously reported in the November 30, 2018, Alternate Source Demonstration and 14-day notification, which provided proposed alternate GPS and provided evidence that cobalt and vanadium are naturally occurring. 4.1.2 C&D Facility Three NC Appendix I metals (cobalt, thallium and vanadium) were detected at estimated concentrations above their respective IMAC standards but below their respective PQLs at MW-18R (cobalt and thallium) and MW-19 (vanadium) during this event. Indicator parameters iron, manganese, and total dissolved solids were also detected above their respective NC 2L Standards during this event. One organic constituent (1,4-dioxane) was detected in the samples from MW-18R and MW-19 at concentrations above the groundwater protection standard; this constituent was analyzed per the May 30, 2018, memorandum and is not part of the facility permit -required testing. 4.1.3 Surface Water Two NC Appendix I inorganic constituents (copper and lead) were detected at surface water monitoring locations (copper at all locations and lead at SW-2 and SW-4) during this event at estimated concentrations above their respective surface water standards, as they have been previously. Because concentrations are estimated, no further action is warranted. 'j.0 CONCLUSIONS Based on the results summarized herein, Rowan County Environmental Services will continue monitoring the uppermost aquifer beneath this facility in accordance with the requirements of the Detection Monitoring Program as outlined in Title 15A NCAC 13B .1633 at the MSW landfill and the Detection Monitoring Program as outlined in Title 15A NCAC 13B.0544 at the C&D landfill. 6.0 REFERENCES Resolve (Resolve Environmental Services, P.A.), December 2004. Second Semi -Annual 2004 Appendix I Groundwater Monitoring Event —Rowan County Sanitary Landfill, Campbell Road, Woodleaf, North Carolina. 20 pp. .,i GOLDER March 30, 2020 19123756 Resolve (Resolve Environmental Services, P.A.), July 2005. First 2005 Semi -Annual Groundwater Monitoring — Rowan County Sanitary Landfill, Woodleaf, NC and Annual 2005 Groundwater Monitoring —Rowan County Closed Sanitary Landfill. 5 pp. S&ME October 2005. Water Quality Monitoring Plan —Rowan County Landfill, Woodleaf, NC. 28 pp. S&ME 2005. Design Hydrogeologic Study —Rowan County Landfill —Phase III. 30 pp. NCGS (North Carolina Geologic Survey), 1985. Geologic Map of North Carolina. Scale 1:500,000. 4 GOLDER March 30, 2020 Signature Page Golder Associates NC, Inc. Darren C x Staff Environmental Scientist TJM/RPK/tjm: Rachel P. Kirkman, PG Associate and Senior Consultant Engineering Lic. No. C-2862/Geology Lic. No. C-399 Golder Associates NC, Inc. is a licensed user of the Golder trademark, and an associated operating entity. Golder and the G logo are trademarks of Golder Associates Corporation. g:\projectsVowan\19123756(2020)\phase 100 active wgmr\200 deliv\250 final issued\253 wqm - 1st semi-annual\rowan cc 1st semi-annual wqmr 2020.docx 19123756 TABLES March 2020 Table 1 Project No. 19123756.100 Summary of Historical Static Groundwater Elevation Data Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 50-03 Well ID MW-1 MW-6 MW-7 MW-9 MW-11 MW-12 MW-13 MW-16 MW-17 MW-18R MW-19 MW-20 MW-23 MW-23A TOC Elevation 717.50 668.15 663.14 738.13 683.27 685.88 696.33 752.69 755.36 661.39 653.45 717.00 697.25 696.91 (ft AMSL) Date Elevation DTW Elevation DTW Elevation DTW Elevation DTW Elevation DTW Elevation DTW Elevation DTW Elevation DTW Elevation DTW Elevation DTW Elevation DTW Elevation DTW Elevation DTW Elevation DTW 11 /05/04 704.67 12.83 658.73 9.42 646.43 16.71 712.75 25.38 673.97 9.30 678.72 7.16 682.58 13.75 705.06 47.63 NA NA NA NA NA NA NA NA NA NA NA NA 05/16/05 700.88 16.62 664.48 3.67 647.49 15.65 711.99 26.14 674.41 8.86 679.14 6.74 683.12 13.21 705.44 47.25 NA NA NA NA NA NA NA NA NA NA NA NA 12/30/05 700.38 17.12 660.39 7.76 646.42 16.72 708.06 30.07 674.75 8.52 682.68 3.20 685.13 11.20 704.50 48.19 704.26 51.10 NA NA 643.77 9.68 687.85 29.15 664.72 32.53 661.70 35.21 09/25/06 698.18 19.32 658.88 9.27 645.79 17.35 706.73 31.40 674.26 9.01 678.18 7.70 682.21 14.12 704.49 48.20 703.97 51.39 NA NA 642.25 11.20 687.26 29.74 664.57 32.68 664.60 32.31 01 /30/07 698.60 18.9 660.47 7.68 646.78 16.36 708.80 29.33 674.84 8.43 679.19 6.69 682.71 13.62 704.27 48.42 703.52 51.84 NA NA 643.74 9.71 687.36 29.64 665.05 32.2 665.08 31.83 07/11/07 697.24 20.26 659.63 8.52 645.95 17.19 708.14 29.99 674.33 8.94 678.02 7.86 682.12 14.21 704.79 47.90 705.36 50.00 NA NA 641.95 11.50 687.30 29.70 664.92 32.33 664.93 31.98 08/06/07 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 639.96 21.43 NA NA NA NA NA NA NA NA 01/16/08 694.64 22.86 657.45 10.70 644.55 18.59 702.17 35.96 674.26 9.01 675.97 9.91 681.80 14.53 703.45 49.24 703.37 51.99 640.15 21.24 641.32 12.13 684.89 32.11 662.71 34.54 662.72 34.19 07/29/08 693.84 23.66 657.15 11.00 645.04 18.10 702.48 35.65 672.75 10.52 676.97 8.91 681.41 14.92 702.70 49.99 702.88 52.48 639.79 21.60 640.33 13.12 684.98 32.02 663.06 34.19 662.72 34.19 01 /21 /09 697.74 19.76 660.17 7.98 646.40 16.74 703.32 34.81 674.59 8.68 678.64 7.24 681.75 14.58 702.31 50.38 703.27 52.09 641.83 19.56 643.03 10.42 684.54 32.46 663.42 33.83 663.47 33.44 07/14/09 698.93 18.57 660.85 7.30 647.14 16.00 707.44 30.69 674.33 8.94 678.13 7.75 681.76 14.57 704.01 48.68 705.75 49.61 641.94 19.45 642.17 11.28 686.41 30.59 665.60 31.65 664.59 32.32 01/06/10 701.74 15.76 663.83 4.32 647.62 15.52 707.85 30.28 674.88 8.39 679.19 6.69 682.28 14.05 704.58 48.11 705.86 49.50 642.81 18.58 644.02 9.43 686.09 30.91 664.54 32.71 664.57 32.34 07/20/10 698.96 18.54 661.50 6.65 646.91 16.23 709.72 28.41 677.34 5.93 678.23 7.65 682.08 14.25 705.76 46.93 706.98 48.38 642.19 19.20 642.73 10.72 687.62 29.38 665.17 32.08 665.21 31.70 01 /31 / 11 696.81 20.69 659.91 8.24 646.20 16.94 706.31 31.82 674.61 8.66 678.71 7.17 682.02 14.31 705.20 47.49 706.10 49.26 642.08 19.31 643.51 9.94 685.94 31.06 664.29 32.96 664.31 32.60 07/18/11 697.67 19.83 659.92 8.23 646.14 17.00 707.37 30.76 674.47 8.80 678.09 7.79 681.78 14.55 705.06 47.63 706.13 49.23 642.00 19.39 642.74 10.71 686.29 30.71 664.53 32.72 664.54 32.37 01/24/12 698.09 19.41 660.84 7.31 646.64 16.50 707.11 31.02 674.80 8.47 678.63 7.25 681.91 14.42 709.41 43.28 705.83 49.53 642.55 18.84 643.70 9.75 685.20 31.80 664.09 33.16 664.07 32.84 07/17/12 696.16 21.34 659.01 9.14 646.33 16.81 706.92 31.21 674.36 8.91 677.68 8.20 681.50 14.83 704.44 48.25 706.06 49.30 641.84 19.55 642.27 11.18 685.63 31.37 664.15 33.10 664.16 32.75 01/22/13 693.67 23.83 658.28 9.87 642.79 20.35 701.77 36.36 674.81 8.46 678.45 7.43 681.46 14.87 703.89 48.80 705.75 49.61 643.07 18.32 643.66 9.79 <679.98 >37.02 662.79 34.46 662.82 34.09 07/15/13 697.62 19.88 663.96 4.19 647.52 15.62 706.81 31.32 674.85 8.42 678.34 7.54 681.70 14.63 704.75 47.94 706.52 48.84 643.11 18.28 643.64 9.81 684.95 32.05 664.84 32.41 664.68 32.23 01/27/14 698.16 19.34 661.05 7.10 647.25 15.89 706.68 31.45 675.10 8.17 678.84 7.04 681.94 14.39 704.54 48.15 706.19 49.17 643.67 17.72 644.06 9.39 <680.39 >36.61 664.85 32.40 664.86 32.05 07/14/14 697.54 19.96 661.92 6.23 647.29 15.85 709.66 28.47 674.77 8.50 678.22 7.66 682.01 14.32 706.16 46.53 707.38 47.98 642.43 18.96 642.16 11.29 685.95 31.05 665.97 31.28 665.99 30.92 01 /20/15 694.75 22.75 658.60 9.55 646.44 16.70 704.37 33.76 674.97 8.30 678.67 7.21 681.87 14.46 705.24 47.45 706.22 49.14 642.29 19.10 642.19 11.26 <685.01 >31.99 664.21 33.04 664.23 32.68 07/22/15 692.70 24.80 658.53 9.62 645.55 17.59 704.11 34.02 673.64 9.63 677.15 8.73 681.26 15.07 704.71 47.98 706.20 49.16 640.94 20.45 640.84 12.61 <684.00 >33.00 664.00 33.25 664.03 32.88 01/12/16 699.83 17.67 663.86 4.29 648.58 14.56 706.46 31.67 674.53 8.74 679.18 6.70 681.45 14.88 704.62 48.07 706.20 49.16 644.35 17.04 644.71 8.74 683.50 33.50 664.46 32.79 664.46 32.45 08/01/16 694.65 22.85 658.96 9.19 645.84 17.30 706.42 31.71 674.31 8.96 677.59 8.29 681.64 14.69 705.69 47.00 706.57 48.79 641.47 19.92 641.50 11.95 683.40 33.60 664.13 33.12 664.14 32.77 01/17/17 692.72 24.78 658.46 9.69 646.06 17.08 702.25 35.88 674.89 8.38 678.41 7.47 681.68 14.65 704.77 47.92 706.02 49.34 641.64 19.75 641.94 11.51 681.92 35.08 663.05 34.20 663.06 33.85 07/24/17 696.26 21.24 661.51 6.64 646.87 16.27 705.50 32.63 674.79 8.48 677.98 7.90 681.64 14.69 704.45 48.24 706.33 49.03 642.43 18.96 642.44 11.01 <684.80 >32.20 664.46 32.79 664.45 32.46 02/20/18 695.66 21.84 659.50 8.65 647.48 15.66 702.62 35.51 675.26 8.01 678.92 6.96 681.88 14.45 704.37 48.32 706.29 49.07 643.78 17.61 643.63 9.82 681.68 35.32 663.75 33.50 663.78 33.13 08/08/18 698.77 18.73 659.94 8.21 647.50 15.64 707.87 30.26 675.02 8.25 678.53 7.35 681.78 14.55 705.62 47.07 707.11 48.25 643.94 17.45 643.17 10.28 684.77 32.23 664.53 32.72 663.47 33.44 01/15/19 704.55 12.95 666.00 2.15 649.45 13.69 714.84 23.29 675.92 7.35 679.98 5.90 682.87 13.46 706.65 46.04 707.99 47.37 646.50 14.89 646.06 7.39 683.78 33.22 665.95 31.30 665.91 31.00 08/13/19 697.94 19.56 659.75 8.40 646.51 16.63 711.19 26.94 674.88 8.39 678.26 7.62 682.38 13.95 707.62 45.07 706.69 48.67 643.41 17.98 643.51 9.94 685.55 31.45 665.04 32.21 665.06 31.85 01 /13/20 702.48 15.02 NM NM 647.56 15.58 710.98 27.15 676.24 7.03 680.18 5.70 682.98 13.35 706.42 46.27 706.07 49.29 646.92 14.47 646.50 6.95 684.80 32.20 664.20 33.05 664.17 32.74 MEAN 697.80 19.70 660.45 7.70 646.60 16.54 707.05 31.08 674.74 8.53 678.54 7.34 682.09 14.24 705.00 47.69 705.75 49.61 642.58 18.81 643.02 10.43 685.19 31.81 664.38 32.87 664.20 32.71 MAXIMUM 704.67 24.80 666.00 11.00 649.45 20.35 714.84 36.36 677.34 10.52 682.68 9.91 685.13 15.07 709.41 50.38 707.99 52.48 646.92 21.60 646.50 13.12 687.85 35.32 665.97 34.54 665.99 35.21 MINIMUM 692.70 12.83 657.15 2.15 642.79 13.69 701.77 23.29 672.75 5.93 675.97 3.20 681.26 11.20 702.31 43.28 702.88 47.37 639.79 14.47 640.33 6.95 681.68 29.15 662.71 31.28 661.70 30.92 Notes: AMSL = Above Mean Sea Level NA = Not Available NM = Not Measured TOC = Top of Well Casing MW-3, MW-4, MW-5 and MW-10 are decommissioned monitoring wells and data are not included in this table. MW-18 was decomissioned and replaced by MW-18R after the July 2007 sampling event. MW-24 was decomissioned and replaaced by MW-24R after the January 2011 sampling event. MW-25, MW-26, MW-27, MW-27A, and MW-28 were installed prior to the January 2013 sampling event to monitor the Phase IV expansion. MW-21 and MW-22 were decommissioned after the July 2013 sampling event. MW-28R installed 7-11-2017. GOLDER Page 1 of 2 March 2020 Table 1 Project No. 19123756.100 Summary of Historical Static Groundwater Elevation Data Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 50-03 Well ID MW-24R MW-25 MW-26 MW-27 MW-27A MW-28 MW-28R TOC Elevation 717.10 707.46 697.30 663.90 664.02 682.06 685.26 (ft AMSL) Date Elevation DTW Elevation DTW Elevation DTW Elevation DTW Elevation DTW Elevation DTW Elevation DTW 11 /05/04 NA -- NA -- NA -- NA -- NA -- NA -- NI -- 05/16/05 NA -- NA -- NA -- NA -- NA -- NA -- NI -- 12/30/05 NA -- NA -- NA -- NA -- NA -- NA -- NI -- 09/25/06 NA -- NA -- NA -- NA -- NA -- NA -- NI -- 01 /30/07 NA -- NA -- NA -- NA -- NA -- NA -- NI -- 07/11 /07 NA -- NA -- NA -- NA -- NA -- NA -- NI -- 08/06/07 NA -- NA -- NA -- NA -- NA -- NA -- NI -- 01 /16/08 NA -- NA -- NA -- NA -- NA -- NA -- NI -- 07/29/08 NA -- NA -- NA -- NA -- NA -- NA -- NI -- 01 /21 /09 NA -- NA -- NA -- NA -- NA -- NA -- NI -- 07/14/09 NA -- NA -- NA -- NA -- NA -- NA -- NI -- 01 /06/10 NA -- NA -- NA -- NA -- NA -- NA -- NI -- 07/20/10 NA -- NA -- NA -- NA -- NA -- NA -- NI -- 01 /31 /11 NA -- NA -- NA -- NA -- NA -- NA -- NI -- 07/18/11 681.72 35.78 NA -- NA -- NA -- NA -- NA -- NI -- 01 /24/12 681.41 36.09 NA -- NA -- NA -- NA -- NA -- NI -- 07/17/12 681.29 36.21 NA -- NA -- NA -- NA -- NA -- NI -- 01 /22/ 13 680.64 36.86 632.88 35.27 627.43 35.71 729.34 8.79 673.93 9.34 661.20 24.68 NI 24.68 07/15/13 681.18 36.32 634.73 33.42 629.43 33.71 730.14 7.99 675.03 8.24 662.90 22.98 NI 22.98 01 /27/14 680.99 36.51 634.04 34.11 629.23 33.91 730.08 8.05 675.06 8.21 662.79 23.09 NI 23.09 07/14/14 681.81 35.69 636.56 31.59 631.05 32.09 729.55 8.58 674.43 8.84 665.43 20.45 NI 20.45 01 /20/ 15 681.61 35.89 NM -- NM -- 730.22 7.91 674.96 8.31 662.22 23.66 NI 23.66 07/22/15 681.02 36.48 633.12 35.03 627.97 35.17 728.73 9.40 673.54 9.73 661.76 24.12 NI 24.12 01/12/16 681.09 36.41 631.79 36.36 627.48 35.66 730.23 7.90 675.07 8.20 662.89 22.99 NI 22.99 08/01 /16 681.40 36.10 632.72 35.43 627.26 35.88 728.99 9.14 673.82 9.45 661.94 23.94 NI 23.94 01/17/17 680.94 36.56 630.63 37.52 626.14 37.00 729.25 8.88 674.00 9.27 661.33 24.55 NI 24.55 08/25/17 -- -- -- -- 626.52 36.62 -- -- -- -- -- -- -- -- 02/20/18 680.34 36.76 669.58 37.88 660.02 37.28 655.35 8.55 655.12 8.90 658.37 23.69 661.01 24.25 08/08/18 680.69 36.41 670.75 36.71 660.88 36.42 655.20 8.70 655.00 9.02 658.64 23.42 661.59 23.67 01/15/19 681.31 35.79 672.59 34.87 662.03 35.27 656.98 6.92 656.87 7.15 660.26 21.80 662.80 22.46 08/13/19 682.36 34.74 672.96 34.50 662.53 34.77 654.88 9.02 654.67 9.35 658.84 23.22 662.31 22.95 01/13/20 682.14 34.96 670.78 36.68 661.40 35.90 656.54 7.36 656.24 7.78 658.67 23.39 661.85 23.41 MEAN 681.27 36.11 646.74 35.45 639.08 35.45 704.98 8.41 668.12 8.73 661.38 23.23 661.87 23.39 MAXIMUM 682.36 36.86 672.96 37.88 662.53 37.28 730.23 9.40 675.07 9.73 665.43 24.68 662.80 24.68 MINIMUM 680.34 34.74 630.63 31. 59 626.14 32. 09 654.88 6.92 654.67 7.15 658.37 20.45 661.01 20.45 Notes: AMSL = Above Mean Sea Level NA = Not Available NM = Not Measured TOC = Top of Well Casing MW-3, MW-4, MW-5 and MW-10 are decommissioned monitoring wells and data are not included in this table. MW-18 was decomissioned and replaced by MW-18R after the July 2007 sampling event. MW-24 was decomissioned and replaaced by MW-24R after the January 2011 sampling event. MW-25, MW-26, MW-27, MW-27A, and MW-28 were installed prior to the January 2013 sampling event to monitor the Phase IV expansion. MW-21 and MW-22 were decommissioned after the July 2013 sampling event. MW-28R installed 7-11-2017. GOLDER Page 2 of 2 March 2020 Table 2 Summary of Estimated Horizontal Flow Velocities Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit #80-03 Project No. 19123756.100 January 2020 Gradient Calculation Gradient Segment Gradient Segment Horizontal Gradient Effective Porosity Hydraulic Hy Velocity (Vgw, Segment Flow Direction Length (feet) g Elevations (feet) ( i, feet) (ne) Conductivity (K, feet/year) cm/sec) i SW 2447 ------------ 690 640------------ 0.0204 0.26 0.002 163 i 2 SSW 1596 ----------- - 700 66 0.0251 0.26 0.002 199 i 3 SSW 921 """""'-- 700------------ 0.0652 0.26 0.002 519 Notes: Horizontal velocities based on the modified Darcy equation V,w = Ki/ne. Values for K and newere based on geometric average values taken from S&ME's October 2005 Design Hydrogeologic Report referenced in the text. GOLDER Page 1 of 1 March 2020 Table 3 Summary of Monitoring Well Construction Information Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Project No. 19123756.100 Well Identification Northing Easting Date of Construction urouna Surface Elevation TOC Elevation (ft AMSL) Well Depth (ft bgs) Well Diameter (inches) Screened Interval (ft AMSL) Geology of Screened Interval Well Type MW-1 1536611.82 733038.15 - 715.00 717.50 27.0 2 690.50 - 700.50 Partially Weathered Rock Compliance Monitoring Point MW-6 1538418.99 732034.90 - 665.55 668.15 53.7 2 614.45 - 619.45 - Water Level Only MW-7 1538340.33 731108.57 - 660.60 663.14 28.5 2 634.64 - 644.64 - Compliance Monitoring Point MW-9 1536844.42 733960.05 - 698.63 738.13 39.5 2 698.63 - 708.63 - Compliance Monitoring Point MW-11 1538285.50 732876.62 - 680.94 683.27 23.9 2 659.32 - 669.32 - Compliance Monitoring Point MW-12 1538299.11 733113.18 - 682.94 685.88 22.6 2 663.28 - 673.28 - Compliance Monitoring Point MW-13 1538303.87 733395.18 - 694.31 696.33 24.5 2 671.80 - 681.80 - Compliance Monitoring Point MW-16 1539006.79 734292.09 - 750.50 752.69 56.7 2 695.99 - 705.99 - Compliance Monitoring Point MW-17 1539992.75 733886.30 - 752.42 755.36 55.0 2 697.42 - 712.42 - Compliance Monitoring Point MW-18R 1540067.64 732809.77 07/24/07 658.30 661.39 30.0 2 628.30 - 643.30 Sa rolite/PWR Compliance Monitoring Point MW-19 1540348.55 732908.08 - 650.47 653.45 20.0 2 630.47 - 645.47 - Com liance Monitoring Point MW-20 1536619.71 732537.54 04/05/05 713.90 717.00 33.0 2 680.9 - 695.9 Sa rolite/PWR Compliance Monitoring Point MW-23 1537990.80 732183.59 04/08/05 694.29 697.25 38.5 2 655.79 - 670.79 Sa rolite/PWR Compliance Monitoring Point MW-23A 1537990.80 732173.30 04/11/05 693.82 696.91 68.5 2 625.32 - 640.32 Sa rolite/PWR Compliance Monitoring Point MW-24R 1537954.02 732801.79 04/12/11 714.39 717.10 43.6 2 686.39 - 671.39 Sa rolite/PWR Compliance Monitorin Point MW-25 1536603.20 731757.27 04/15/11 704.98 707.46 40.6 2 679.42 - 664.42 - Com liance Monitoring Point MW-26 1537383.59 731382.04 04/21/11 694.80 697.30 38.9 2 670.88 - 655.88 - Com liance Monitoring Point MW-27 1538076.45 731358.39 04/26/11 661.46 663.90 18.5 2 657.96 - 642.96 - Com liance Monitoring Point MW-27A 1538084.39 731350.62 04/25/11 661.27 664.02 64.3 2 602.27 - 597.27 - Water Level Only MW-28 1538097.33 731753.26 04/26/11 679.23 682.03 26.2 2 668.02 - 653.02 - Water Level Only MW-28R 731882.07 1538013.18 07/11/17 683.04 685.26 35.3 2 666.04 - 651.04 - Compliance Monitoring Point Notes: ft AMSL = feet above mean sea level ft bgs = feet below ground surface TOC = Top of Well Casing Elevation Monitoring wells MW-6, MW-27A, and MW 28 are monitored for water levels only. ' GOLDER Page 1 of 1 March 2020 Project No. 19123756.100 Table 4 Summary of Detected Constituents in Groundwater for the Municipal Solid Waste Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring Constituents/Analytes Units Sample Date MDL MRL SWS Reporting Upgradient MSW Wells Sidegradient and Downgradient MSW Wells French Drain Blanks Limit MW-9 MW-16 MW-1 MW-6 MW-7 MW-11 MW-12 MW-13 MW-20 MW-21 MW-22 MW-23 MW-23A MW-24 MW-24R MW-25 MW-26 MW-27 MW-28 MW-28R Antimony ug/L 10/01 /93 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- IMAC= 1 ug/L ug/L 07/01/94 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- EPA MCL = 6 ug/L ug/L 10/01/94 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 01 /01 /95 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /95 -- -- -- ND -- ND ND 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /95 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /96 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/L 10/01 /96 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/L 04/01 /97 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 10/01 /97 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /98 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01/98 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 04/01 /99 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 09/01 /99 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /00 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 09/01 /00 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 04/01 /01 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 10/01 /01 -- -- -- ND ND 54 ND ND ND ND 33 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /02 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 11 /01 /02 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 05/01 /03 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 10/01 /03 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /04 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 11 /01 /04 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /05 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 11 /04/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- u g/ L 12/ 12/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- ug/L 12/ 13/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- ug/L 12/22/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- ug/L 12/30/05 -- -- 30 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- ND ug/L 09/26/06 -- -- 30 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- ND ug/L 01/31/07 -- -- 6 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- ND ug/L 07/12/07 -- -- 6 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 01/17/08 -- -- 6 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 07/30/08 -- -- 6 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 01/21/09 -- -- 6 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 07/14/09 -- -- 6 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 01/07/10 -- -- 6 ND 0.16 J ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 07/20/10 -- -- 6 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 01/31/11 -- -- 6 ND ND ND ND 0.243 J ND ND 0.444 J ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 07/18/11 -- -- 6 ND ND 0.245 J ND ND ND ND ND ND ND 0.281 J ND ND -- ND -- -- -- -- -- ND ND ug/L 01/24/12 -- -- 6 ND ND 0.542 B ND 0.754 B ND ND ND ND ND ND ND ND -- ND -- -- -- -- -- ND 0.259 J ug/L 07/17/12 -- -- 6 ND ND 0.673 J 0.339 J 1.22 J ND ND ND ND 0.306 J ND ND ND -- ND -- -- -- -- -- ND ND ug/L 01/22/13 -- -- 6 1.6 B ND 0.787 B -- ND 0.241 B ND 0.439 B Dry ND ND ND ND -- ND ND ND ND ND -- ND 0.35 J ug/L 07/15/13 -- -- 6 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 01/27/14 -- -- 6 0.256 J ND 1.06 J -- 0.334 J ND 1.71 J ND Dry -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 07/15/14 -- -- 6 ND ND 0.428 J -- ND ND 1.29 J ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 01/20/15 0.22 -- 6 0.315 J ND 0.645 J -- 0.407 J 0.307 J 1.2 J ND ND -- -- ND ND -- ND -- -- -- -- -- -- ND ug/L 07/23/15 0.22 -- 6 ND ND ND -- 0.325 J ND 1 J ND Dry -- -- ND ND -- ND ND 0.26 J ND ND -- ND ND ug/L 01/12/16 0.22 -- 6 0.446 B ND 1.37 B -- 0.637 B 0.224 B 0.772 B ND ND -- -- ND ND -- ND ND ND 0.239 B ND -- ND 0.577 J ug/L 08/01/16 0.22 -- 6 ND ND ND ND ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 01/18/17 0.37 -- 6 ND ND ND -- ND ND 0.618 J ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 07/24/17 0.37 -- 6 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 11/01/17 0.37 -- 6 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND Dry ND ug/L 02/20/18 0.37 -- 6 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 08/08/18 1.85 5.00 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND Dry ND ug/L 01/15/19 1.85 5.00 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 08/14/19 0.74 2.00 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND ND ND u /L 01/13/20 0.74 2.00 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND i GOLDER Page 1 of 19 March 2020 Project No. 19123756.100 Table 4 Summary of Detected Constituents in Groundwater for the Municipal Solid Waste Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring Constituents/Analytes Units Sample Date MDL MRL SWS Reporting Upgradient MSW Wells Sidegradient and Downgradient MSW Wells French Drain Blanks Limit MW-9 MW-16 MW-1 MW-6 MW-7 MW-11 MW-12 MW-13 MW-20 MW-21 MW-22 MW-23 MW-23A MW-24 MW-24R MW-25 MW-26 MW-27 MW-28 MW-28R Arsenic ug/L 10/01 /93 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- NC 2L = 10 ug/L ug/L 07/01/94 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- EPA MCL = 10 ug/L ug/L 10/01/94 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 01 /01 /95 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /95 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /95 -- -- -- ND -- ND ND 27 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /96 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /96 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /97 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 10/01 /97 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 04/01 /98 -- -- -- ND ND ND ND ND ND ND 11 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /98 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /99 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 09/01 /99 -- -- -- ND ND ND ND ND ND ND 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01/00 -- -- -- ND ND ND ND 15 18 ND 21 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 09/01 /00 -- -- -- ND ND 12 ND 14 36 ND 63 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /01 -- -- -- ND ND ND ND ND 14 ND 24 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /01 -- -- -- ND ND 64 ND 31 30 ND 100 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /02 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 11/01/02 -- -- -- ND 12 ND ND 11 ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /03 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /03 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 05/01 /04 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 11 /01 /04 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /05 -- -- -- ND 13 ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 11 /04/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- ug/L 12/ 12/05 -- -- -- -- -- -- -- -- -- -- -- ND ND 31 ND ND ND -- -- -- -- -- -- -- -- ug/L 12/ 13/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- ug/L 12/22/05 -- -- -- -- -- -- -- -- -- -- -- ND ND 29 ND ND ND -- -- -- -- -- -- -- -- ug/L 12/30/05 -- -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- ND ug/L 09/26/06 -- -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- ND ug/L 01/31/07 -- -- 10 ND 3.7 B 2.3 B ND 3.9 B ND ND 2.5 B ND ND ND 2.2 B ND 3.1 B -- -- -- -- -- -- -- 3 J ug/L 07/12/07 -- -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 01/17/08 -- -- 10 ND 2.1 J 2.6 J ND 3.5 J ND ND ND 2.7 J ND ND ND 2.1 J Dry -- -- -- -- -- -- 2.3 J ND ug/L 07/30/08 -- -- 10 ND ND ND ND ND ND 3.7 J ND ND ND 3.3 J ND 4.1 J Dry -- -- -- -- -- -- 3.1 J ND ug/L 01/21/09 -- -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 07/14/09 -- -- 10 ND ND ND ND ND ND ND ND ND 4.4 B ND ND ND Dry -- -- -- -- -- -- ND 3.84 J ug/L 01/07/10 -- -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 07/20/10 -- -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 01/31/11 -- -- 10 ND ND ND ND 3.46 B ND 4.77 B ND ND ND 5.07 B ND ND Dry -- -- -- -- -- -- ND 4.78 J ug/L 07/18/11 -- -- 10 ND ND 4.77 J ND 3.02 J ND ND ND ND ND ND ND ND -- 3.59 J -- -- -- -- -- ND ND ug/L 01/24/12 -- -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND -- ND -- -- -- -- -- ND ND ug/L 07/17/12 -- -- 10 ND ND 3.9 J ND 4.82 J 4.18 J 2.96 J ND 3.14 J 5.61 J ND 4.45 J 3.31 J -- 5.72 J -- -- -- -- -- ND ND ug/L 01/22/13 -- -- 10 ND ND ND -- ND ND ND ND Dry ND ND ND ND -- ND ND ND ND ND -- ND ND ug/L 07/15/13 -- -- 10 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 01/27/14 -- -- 10 ND ND ND -- ND ND ND ND Dry -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 07/15/14 -- -- 10 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 01 /20/ 15 5.4 -- 10 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND -- -- -- -- -- -- ND ug/L 07/23/15 6.8 -- 10 ND ND ND -- ND ND ND ND Dry -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 01/12/16 6.8 -- 10 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 08/01/16 6.8 -- 10 ND ND ND ND ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 01/18/17 6.8 -- 10 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 07/24/17 6.8 -- 10 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 11 /01 / 17 6.8 -- 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND Dry ND ug/L 02/20/18 6.8 -- 10 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 08/08/18 7.6 10.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND Dry ND ug/L 01/15/19 7.6 10.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 08/14/19 7.6 10.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND ND ND u /L 1 01/13/20 1 7.6 1 10.0 1 1 ND ND I ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND I Dry I ND i GOLDER Page 2 of 19 March 2020 Project No. 19123756.100 Table 4 Summary of Detected Constituents in Groundwater for the Municipal Solid Waste Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring Constituents/Analytes Units Sample Date MDL MRL SWS Reporting Upgradient MSW Wells Sidegradient and Downgradient MSW Wells French Drain Blanks Limit MW-9 MW-16 MW-1 MW-6 MW-7 MW-11 MW-12 MW-13 MW-20 MW-21 MW-22 MW-23 MW-23A MW-24 MW-24R MW-25 MW-26 MW-27 MW-28 MW-28R Barium ug/L 10/01 /93 -- -- -- ND -- 100 ND 200 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- NC 2L = 700 ug/L ug/L 07/01/94 -- -- -- ND -- ND ND 200 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- EPA MCL = 2000 ug/L ug/L 10/01/94 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 01 /01 /95 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /95 -- -- -- 100 -- ND ND 200 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /95 -- -- -- ND -- ND ND 1850 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /96 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /96 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /97 -- -- -- 75 -- 58 ND 610 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /97 -- -- -- 91 110 92 ND 350 1600 230 4500 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /98 -- -- -- 110 160 52 ND 310 950 470 3200 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /98 -- -- -- 61 ND 110 ND 140 430 180 690 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /99 -- -- -- ND ND ND ND ND 540 ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 09/01 /99 -- -- -- ND ND ND ND ND 510 ND 710 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /00 -- -- -- ND ND ND ND 690 910 ND 1300 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 09/01 /00 -- -- -- ND ND ND ND 580 1000 ND 2100 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /01 -- -- -- ND ND ND ND ND 690 ND 1100 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /01 -- -- -- ND ND 3000 ND 1100 910 ND 4000 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /02 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 11/01/02 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 05/01 /03 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 10/01 /03 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /04 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 11 /01 /04 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 05/01 /05 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 11 /04/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- ug/L 12/12/05 -- -- -- -- -- -- -- -- -- -- -- ND ND 1300 740 ND ND -- -- -- -- -- -- -- -- ug/L 12/ 13/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- ug/L 12/22/05 -- -- -- -- -- -- -- -- -- -- -- ND ND 1100 ND ND ND -- -- -- -- -- -- -- -- ug/L 12/30/05 -- -- 500 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- ND ug/L 09/26/06 -- -- 500 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- ND ug/L 01 /31 /07 -- -- 100 63.5 41.2 72.4 2 J 56.8 70.6 57.2 96.6 110 129 57.4 91.5 15.9 148 -- -- -- -- -- -- -- 0.04 J ug/L 07/12/07 -- -- 100 57.9 J 15 J 78.1 J 1.8 J 54.8 J 46.8 J 57 J 101 94.9 J 154 50.8 J 104 11.5 J Dry -- -- -- -- -- -- 28.4 J ND ug/L 01/17/08 -- -- 100 55.7 J 17.4 J 84.9 J 1.9 J 58 J 75.2 J 64.2 J 195 108 38.9 J 43.3 J 125 16.2 J Dry -- -- -- -- -- -- 32.3 J ND ug/L 07/30/08 -- -- 100 50.6 J 14.2 J 86.2 J 1.9 J 77.7 J 66.1 J 64.6 J 139 72.8 J 104 47.5 J 83.3 J 11.8 J Dry -- -- -- -- -- -- 40.2 J ND ug/L 01/21/09 -- -- 100 51.4 J 14.5 J 62.7 J 2 J 59.5 J 61.1 J 65.7 J 101 66.3 J 28.5 J 52.6 J 102 11.6 J Dry -- -- -- -- -- -- 31.6 J ND ug/L 07/14/09 -- -- 100 56.6 J 15 J 72.2 J ND 63.2 J 50.2 J 62.6 J 115 102 32.8 J 48 J 109 10.9 J Dry -- -- -- -- -- -- 33.1 J ND ug/L 01/07/10 -- -- 100 51.1 J 12 J 55.7 J 1.59 B 56.6 J 68.3 J 65.3 J 76.5 J 84.4 J 28.6 J 83.5 J 89.8 J 10.5 J Dry -- -- -- -- -- -- 31.4 J 0.481 J ug/L 07/20/10 -- -- 100 41.4 J 10.2 J 58.3 J 1.49 J 78.7 J 40.3 J 51.1 J 146 76.2 J 41.9 J 27.8 J 139 12.3 J Dry -- -- -- -- -- -- 37 J ND ug/L 01/31/11 -- -- 100 62.3 J 17.3 J 78.2 J 1.78 J 58.3 J 82.6 J 80.6 J 104 97.7 J 24.9 J 41.1 J 115 44.5 J Dry -- -- -- -- -- -- 31.1 J ND ug/L 07/18/11 -- -- 100 69.8 J 19 J 83.3 J 1.59 J 66.3 J 51.7 J 68.5 J 108 117 24.2 J 47.1 J 148 47.7 J -- 99.6 J -- -- -- -- -- 34.1 J ND ug/L 01/24/12 -- -- 100 59 J 17.4 J 77.5 J 1.04 J 59.1 J 85.2 J 74.9 J 88.1 J 110 24 J 58.5 J 101 64.2 J -- 90.3 J -- -- -- -- -- 34.2 J ND ug/L 07/17/12 -- -- 100 61.3 J 18.6 J 80.6 J 1.63 B 59.6 J 48.6 J 59 J 99.5 J 123 21.1 J 70.2 J 123 79.3 J -- 97.1 J -- -- -- -- -- 43.7 J 1.32 J ug/L 01/22/13 -- -- 100 83.8 J 21.5 J 96.2 J -- 61 J 72.8 J 74.1 J 104 Dry 36.9 J 76.5 J 155 121 -- 88.3 J 83.7 J 78.4 J 54.5 J 1050 -- 31.3 J 1.24 J ug/L 07/15/13 -- -- 100 58 J 23.8 J 68.8 J -- 66.5 J 51.9 J 54.6 J 99.2 J 87.2 J -- -- 168 66.7 J -- 82.6 J 29.8 J 92.3 J 40 J 1410 -- 37.1 J 1.75 J ug/L 01/27/14 -- -- 100 52.8 J 23.3 J 58.9 J -- 60.1 J 63 J 54.6 J 80.8 J Dry -- -- 107 55.5 J -- 72.8 J 27.5 J 109 48.1 J 1410 -- 36.7 J 1.18 J ug/L 07/15/14 -- -- 100 54.7 J 22.2 J 66.9 J -- 66.3 J 41.2 J 67.6 J 93.7 J 102 -- -- 170 34.2 J -- 69.1 J 24.3 J 95.1 J 42 J 1510 -- 31.7 J ND ug/L 01/20/15 1 -- 100 60.1 J 21.9 J 82.2 J -- 68 J 52 J 61.8 J 107 111 -- -- 159 51.7 J -- 73.7 J -- -- -- -- -- -- 1.01 J ug/L 07/23/15 1 -- 100 57 J 20.3 J 76.6 J -- 65.6 J 51.7 J 60.2 J 104 Dry -- -- 158 78.5 J -- 66.2 J 27.3 J 95.9 J 51.5 J 1390 -- 30.7 J ND ug/L 01/12/16 1 -- 100 54.2 J 21.6 J 85.3 J -- 61.9 J 52.5 J 58.5 J 81.5 J 84.1 J -- -- 118 32.2 J -- 61.5 J 29.8 J 69.6 J 53.9 J 1390 -- 37.7 J 1.94 J ug/L 08/01/16 1 -- 100 55.4 J 21.3 J 79.6 J 2.66 J 56 J 51.9 J 52.4 J 94.5 J 102 -- -- 135 44.3 J -- 54.4 J 23.8 J 67.1 J 53.5 J 1500 -- 27.1 J ND ug/L 01/18/17 1 -- 100 58.2 J 19.4 J 85.0 J -- 61.2 J 55.3 J 66.5 J 102 77.2 J -- -- 137 29.3 J -- 56.7 J 32.4 J 56 J 68 J 1450 -- 44.7 J ND ug/L 07/24/17 1 -- 100 56.9 J 23.6 J 76.4 J -- 65.5 J 52.7 J 61.6 J 109 153 -- -- 90.6 J 32.0 J -- 55.5 J 29.1 J 54.7 J 83.0 J -- 193 Dry 2.03 J ug/L 11 /01 / 17 1 -- 100 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 229 Dry ND ug/L 02/20/18 1 -- 100 46.5 J 20.3 J 79.8 J -- 59.5 J 44.2 J 57.1 J 85.6 J 59.8 J -- -- 129 31.7 J -- 51.8 J 29.6 J 41.7 J 72.7 J -- 230 Dry ND ug/L 08/08/18 1.1 10.0 -- 46.5 19.3 84.0 -- 62.1 44.6 60.1 92.7 82.7 -- -- 158 20.0 -- 49.4 31.0 46.1 80.2 -- 272 Dry 3.31 J ug/L 01/15/19 1.1 10.0 -- 54.7 22.3 96.4 -- 68.4 49.8 65.8 67.7 100 -- -- 166 22.0 -- 55.9 32.0 60.9 96.7 -- 240 Dry ND ug/L 08/14/19 1.1 10.0 -- 60.4 16.9 88.1 -- 65.5 40.2 55.6 91.2 68.8 -- -- 205 19.3 -- 52.4 25.9 68.7 79.5 -- 337 38.9 2.69 J u /L 01/13/20 1.1 10.0 -- 61.3 14.9 90.6 -- 61.2 46.4 61.1 52.1 89.6 -- -- 178 20.5 -- 51.4 28.2 55.2 70.3 -- 219 Dry 1.11 J i GOLDER Page 3 of 19 March 2020 Project No. 19123756.100 Table 4 Summary of Detected Constituents in Groundwater for the Municipal Solid Waste Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring Constituents/Analytes Units Sample Date MDL MRL SWS Reporting Upgradient MSW Wells Sidegradient and Downgradient MSW Wells French Drain Blanks Limit MW-9 MW-16 MW-1 MW-6 MW-7 MW-11 MW-12 MW-13 MW-20 MW-21 MW-22 MW-23 MW-23A MW-24 MW-24R MW-25 MW-26 MW-27 MW-28 MW-28R Beryllium ug/L 10/01 /93 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- I MAC = 4 ug/L ug/L 07/01 /94 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- EPA MCL = 4 ug/L ug/L 10/01/94 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 01 /01 /95 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /95 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /95 -- -- -- ND -- ND ND 18.4 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /96 -- -- -- ND -- ND ND 9.3 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /96 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /97 -- -- -- ND -- ND ND 7 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /97 -- -- -- ND ND ND ND 5 15 1 13 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /98 -- -- -- ND ND ND ND 3 9 3 29 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /98 -- -- -- ND ND ND ND ND 3 ND 3 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /99 -- -- -- 3 ND ND ND ND 4 ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 09/01 /99 -- -- -- ND ND ND ND ND 4 ND 4 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /00 -- -- -- ND ND ND ND 6 8 ND 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 09/01 /00 -- -- -- ND ND 4 ND 5 10 ND 18 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /01 -- -- -- ND ND ND ND 3 8 ND 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /01 -- -- -- ND ND 30 ND 11 10 ND 29 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /02 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 11/01/02 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 05/01 /03 -- -- -- ND ND ND ND 2 ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 10/01 /03 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /04 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 11 /01 /04 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 05/01 /05 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 11 /04/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND 4.3 -- -- -- -- -- -- -- -- ug/L 12/ 12/05 -- -- -- -- -- -- -- -- -- -- -- ND ND 7.6 4.1 ND 3.1 -- -- -- -- -- -- -- -- ug/L 12/ 13/05 -- -- -- -- -- -- -- -- -- -- -- ND 21 ND ND ND 3.7 -- -- -- -- -- -- -- -- ug/L 12/22/05 -- -- -- -- -- -- -- -- -- -- -- ND ND 5.8 ND ND ND -- -- -- -- -- -- -- -- ug/L 12/30/05 -- -- 2 ND ND ND ND ND ND ND ND ND ND ND 2.6 ND ND -- -- -- -- -- -- -- ND ug/L 09/26/06 -- -- 2 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- ND ug/L 01/31/07 -- -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND 0.7 J -- -- -- -- -- -- -- ND ug/L 07/12/07 -- -- 1 ND ND ND ND ND ND ND ND 0.3 J 0.5 J 0.3 J ND ND Dry -- -- -- -- -- -- ND ND ug/L 01/17/08 -- -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 07/30/08 -- -- 1 ND ND 0.1 J ND 0.3 J ND 0.1 J ND 0.1 J 0.4 J 0.1 J ND ND Dry -- -- -- -- -- -- ND ND ug/L 01/21/09 -- -- 1 ND ND ND ND ND ND ND ND 0.1 J ND 0.2 J 0.1 J ND Dry -- -- -- -- -- -- ND ND ug/L 07/14/09 -- -- 1 ND ND 0.0858 J ND 0.247 J ND 0.17 J ND 0.298 J ND 0.232 J 0.106 J ND Dry -- -- -- -- -- -- ND ND ug/L 01/07/10 -- -- 1 ND ND 0.124 J ND 0.269 J 0.21 J 0.239 J 0.105 J 0.293 J 0.101 J 0.648 J 0.268 J ND Dry -- -- -- -- -- -- ND ND ug/L 07/20/10 -- -- 1 ND ND ND ND 0.575 J ND ND ND 0.289 J ND 0.123 J 0.129 J ND Dry -- -- -- -- -- -- ND ND ug/L 01/31/11 -- -- 1 ND ND 0.207 J ND 0.185 J 0.107 J 0.239 J ND 0.305 J ND 0.23 J 0.123 J ND Dry -- -- -- -- -- -- ND ND ug/L 07/18/11 -- -- 1 ND ND ND ND 0.227 J ND 0.167 J ND 0.347 J ND 0.244 J 0.149 J ND -- 0.409 J -- -- -- -- -- ND ND ug/L 01/24/12 -- -- 1 ND ND ND ND 0.108 J 0.151 J 0.221 J ND 0.236 J ND 0.186 J ND ND -- 0.28 J -- -- -- -- -- ND ND ug/L 07/17/12 -- -- 1 ND ND 0.131 J ND 0.288 J ND 0.301 J ND 0.42 J 0.19 J 0.459 J 0.211 J 0.104 J -- 0.631 J -- -- -- -- -- ND ND ug/L 01/22/13 -- -- 1 ND ND 0.103 J -- 0.215 J ND 0.405 J ND Dry 0.114 J 0.45 J 0.288 J ND -- 0.418 J ND 0.344 J 0.353 J 1.62 -- ND ND ug/L 07/15/13 -- -- 1 ND ND ND -- 0.258 J ND 0.257 J ND 0.26 J -- -- 0.254 J ND -- 0.329 J ND 0.317 J ND 1.84 -- ND ND ug/L 01/27/14 -- -- 1 ND ND ND -- 0.139 J ND 0.148 J ND Dry -- -- ND ND -- 0.223 J ND 0.366 J ND 1.82 -- ND ND ug/L 07/15/14 -- -- 1 ND ND ND -- 0.284 J ND 0.416 J ND 0.401 J -- -- 0.18 J ND -- 0.315 J ND 0.387 J ND 1.91 -- ND ND ug/L 01/20/15 0.1 -- 1 ND ND ND -- 0.256 J ND 0.246 J ND 0.283 J -- -- 0.185 J ND -- 0.281 J -- -- -- -- -- -- ND ug/L 07/23/15 0.1 -- 1 ND ND ND -- 0.215 J ND ND ND Dry -- -- 0.183 J ND -- 0.253 J ND 0.319 J ND 1.84 -- ND ND ug/L 01/12/16 0.1 -- 1 ND ND ND -- 0.201 J ND 0.207 J ND 0.261 J -- -- 0.11 J ND -- 0.232 J ND 0.214 J ND 1.81 -- ND ND ug/L 08/01/16 0.1 -- 1 ND ND 0.13 J ND 0.234 J ND 0.282 J 0.111 J 0.364 J -- -- 0.187 J ND -- 0.284 J ND 0.241 J 0.124 J 1.91 -- ND ND ug/L 01/18/17 0.1 -- 1 ND ND ND -- ND ND 0.191 J ND 0.108 J -- -- 0.104 J ND -- ND ND 0.133 J 0.151 J 2.07 -- ND ND ug/L 07/24/17 0.1 -- 1 ND ND ND -- 0.154 J ND 0.133 J ND ND -- -- 0.180 J ND -- ND ND ND ND -- ND Dry ND ug/L 11/01/17 0.1 -- 1 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 0.238 J Dry ND ug/L 02/20/ 18 0.1 -- 1 ND ND 0.181 J -- 0.207 J ND 0.266 J ND 0.191 J -- -- 0.222 J ND -- 0.274 J ND 0.227 J 0.176 J -- 0.444 J Dry ND ug/L 08/08/18 0.16 1.00 -- ND ND 0.175 J -- ND ND 0.253 J ND 0.186 J -- -- ND ND -- 0.165 J ND 0.193 J 0.553 J -- 0.369 J Dry ND ug/L 01/15/19 0.16 1.00 -- ND ND ND -- 0.198 J ND 0.282 J ND 0.375 J -- -- 0.232 J ND -- 0.299 J ND 0.236 J 0.344 J -- 0.559 J Dry ND ug/L 08/14/19 0.16 1.00 -- ND ND ND -- 0.235 J ND 0.311 J ND 0.280 J -- -- 0.238 J ND -- 0.174 J ND 0.275 J 0.247 J -- 0.630 J ND ND u /L 1 01/13/20 1 0.16 1 1.00 1 1 ND ND I ND -- 0.189 J ND 0.198 J ND 0.230 J -- -- 0.195 J ND -- 0.198 J ND 0.196 J 0.482 J -- 0.511 J I Dry I ND i GOLDER Page 4 of 19 March 2020 Project No. 19123756.100 Table 4 Summary of Detected Constituents in Groundwater for the Municipal Solid Waste Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring Constituents/Analytes Units Sample Date MDL MRL SWS Reporting Upgradient MSW Wells Sidegradient and Downgradient MSW Wells French Drain Blanks Limit MW-9 MW-16 MW-1 MW-6 MW-7 MW-11 MW-12 MW-13 MW-20 MW-21 MW-22 MW-23 MW-23A MW-24 MW-24R MW-25 MW-26 MW-27 MW-28 MW-28R Cadmium ug/L 10/01 /93 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- NC 2L = 2 ug/L ug/L 07/01/94 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- EPA MCL = 5 ug/L ug/L 10/01/94 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 01 /01 /95 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /95 -- -- -- ND -- ND 4 ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /95 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /96 -- -- -- ND -- ND ND 1 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/L 10/01 /96 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /97 -- -- -- ND -- ND 1 ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 10/01 /97 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /98 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /98 -- -- -- 2 ND 2 ND ND 2 3 3 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /99 -- -- -- 4 ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 09/01 /99 -- -- -- ND ND ND ND ND 2 1 2 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /00 -- -- -- 4 3 5 1 6 15 6 17 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 09/01 /00 -- -- -- 2 1 6 ND 3 4 3 8 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /01 -- -- -- ND ND ND ND ND 1 ND 1 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /01 -- -- -- ND ND 2 ND ND ND ND 2 -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 04/01 /02 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 11 /01 /02 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /03 -- -- -- 1 ND ND 1 ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /03 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /04 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 11 /01 /04 -- -- -- 1 ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 05/01 /05 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 11 /04/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- ug/L 12/ 12/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- ug/L 12/ 13/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- ug/L 12/22/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- ug/L 12/30/05 -- -- 1 ND ND 18 ND 3.9 ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- ND ug/L 09/26/06 -- -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- ND ug/L 01/31/07 -- -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- ND ug/L 07/12/07 -- -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 01/17/08 -- -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 07/30/08 -- -- 1 ND 0.4 B ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND 0.7 J ug/L 01/21/09 -- -- 1 ND ND ND ND ND ND ND ND 1 ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 07/14/09 -- -- 1 0.189 J 0.189 J ND ND 0.175 J 0.146 J 0.0925 J 0.087 J 0.398 J ND ND 0.0927 J ND Dry -- -- -- -- -- -- 0.141 J ND ug/L 01/07/10 -- -- 1 0.333 J 0.209 J 0.18 J 0.225 J 0.237 J 0.208 J 0.308 J 0.14 J 0.361 J 0.196 J 0.419 J 0.277 J 0.142 J Dry -- -- -- -- -- -- 0.236 J ND ug/L 07/20/10 -- -- 1 ND ND ND ND 0.391 J ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 01/31/11 -- -- 1 ND ND ND ND ND ND ND ND ND ND 0.621 J ND ND Dry -- -- -- -- -- -- ND ND ug/L 07/18/11 -- -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND -- ND -- -- -- -- -- ND ND ug/L 01/24/12 -- -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND -- ND -- -- -- -- -- ND ND ug/L 07/17/12 -- -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND -- ND -- -- -- -- -- ND ND ug/L 01/22/13 -- -- 1 ND ND ND -- ND ND ND ND Dry ND ND ND ND -- ND ND ND ND ND -- ND ND ug/L 07/15/13 -- -- 1 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 01/27/14 -- -- 1 ND ND ND -- ND ND 3.11 ND Dry -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 07/15/14 -- -- 1 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 01/20/15 0.36 -- 1 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND -- -- -- -- -- -- ND ug/L 07/23/15 0.36 -- 1 ND ND ND -- ND ND ND ND Dry -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 01/12/16 0.36 -- 1 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 08/01/16 0.36 -- 1 ND ND ND ND ND ND ND ND 0.363 J -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 01/18/17 0.36 -- 1 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 07/24/17 0.36 -- 1 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 11/01/17 0.36 -- 1 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND Dry ND ug/L 02/20/18 0.36 -- 1 ND ND ND -- ND ND ND ND 0.374 B -- -- ND ND -- ND ND ND ND -- ND Dry 0.383 J ug/L 08/08/18 0.36 1.00 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 01/15/19 0.36 1.00 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 08/14/19 0.36 1.00 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND ND ND u /L 1 01/13/20 1 0.36 1 1.00 1 1 ND ND I ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND I Dry I ND i GOLDER Page 5 of 19 March 2020 Project No. 19123756.100 Table 4 Summary of Detected Constituents in Groundwater for the Municipal Solid Waste Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring Constituents/Analytes Units Sample Date MDL MRL SWS Reporting Upgradient MSW Wells Sidegradient and Downgradient MSW Wells French Drain Blanks Limit MW-9 MW-16 MW-1 MW-6 MW-7 MW-11 MW-12 MW-13 MW-20 MW-21 MW-22 MW-23 MW-23A MW-24 MW-24R MW-25 MW-26 MW-27 MW-28 MW-28R Chromium u g/L 10/01 /93 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- NC 2L = 10 ug/L ug/L 07/01/94 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- EPA MCL = 100 ug/L ug/L 10/01/94 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 01 /01 /95 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /95 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /95 -- -- -- ND -- ND ND 51 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /96 -- -- -- ND -- ND ND 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /96 -- -- -- 20.4 -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /97 -- -- -- 9 -- 2 45 34 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /97 -- -- -- 15 2 10 ND 9 210 22 800 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /98 -- -- -- 14 17 3 ND 9 140 54 750 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /98 -- -- -- ND ND ND ND ND 11 19 16 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /99 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 09/01 /99 -- -- -- 15 ND ND ND ND 23 13 32 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /00 -- -- -- 18 ND 17 ND 19 86 23 120 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 09/01 /00 -- -- -- 14 ND 47 ND 20 130 19 250 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /01 -- -- -- ND ND 13 ND 14 60 13 110 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /01 -- -- -- 43 ND 220 ND 31 96 13 390 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /02 -- -- -- ND ND ND ND ND ND ND 11 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 11 /01 /02 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /03 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 10/01 /03 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 05/01 /04 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 11 /01 /04 -- -- -- 10 ND ND ND ND 12 ND 14 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /05 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 11 /04/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND 58 -- -- -- -- -- -- -- -- ug/L 12/ 12/05 -- -- -- -- -- -- -- -- -- -- -- ND ND 13 ND 10 55 -- -- -- -- -- -- -- -- ug/L 12/ 13/05 -- -- -- -- -- -- -- -- -- -- -- ND 15 ND ND ND 63 -- -- -- -- -- -- -- -- ug/L 12/22/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- ug/L 12/30/05 -- -- 10 ND ND 11 ND 16 ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- ND ug/L 09/26/06 -- -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND 18.9 -- -- -- -- -- -- -- ND ug/L 01/31/07 -- -- 10 6.4 J 2 J ND ND 2.8 J ND ND ND ND 4.1 J ND ND ND 15.8 -- -- -- -- -- -- -- ND ug/L 07/12/07 -- -- 10 7.3 J ND ND ND 3.2 J ND ND ND ND 5.4 J ND 2.8 J ND Dry -- -- -- -- -- -- 8.3 J ND ug/L 01/17/08 -- -- 10 3.8 J ND ND ND 3.4 J 2.3 J ND 11.8 3.2 J ND ND ND ND Dry -- -- -- -- -- -- 2.5 J ND ug/L 07/30/08 -- -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND 14.5 ug/L 01/21/09 -- -- 10 3.4 J ND ND ND 2.6 J ND 1.1 J ND ND ND ND 3.1 J ND Dry -- -- -- -- -- -- 1.2 J ND ug/L 07/14/09 -- -- 10 6.23 J ND 0.932 J 1.28 J 5.09 J 1.4 J 1.39 J 2.49 J 1.04 J 1.52 J 1.21 J 2.62 J ND Dry -- -- -- -- -- -- 2.45 J ND ug/L 01/07/10 -- -- 10 4.16 J ND ND 3.69 J 2.8 J ND ND ND ND ND ND 1.77 J ND Dry -- -- -- -- -- -- ND ND ug/L 07/20/10 -- -- 10 9.54 J ND ND ND 6.85 J ND 1.82 J 7.77 J ND 1.85 J ND 2.73 J ND Dry -- -- -- -- -- -- 2.01 J ND ug/L 01/31/11 -- -- 10 9.06 J ND ND ND 3.36 J 2.8 J 3.73 J 2.23 J ND ND 1.46 J 2.51 J 4.06 J Dry -- -- -- -- -- -- 1.93 J ND ug/L 07/18/11 -- -- 10 9.36 J ND ND ND 3.03 J ND 1.63 J 1.95 J ND ND ND 2.85 J 3.91 J -- 4.79 J -- -- -- -- -- 1.93 J ND ug/L 01/24/12 -- -- 10 9.46 J ND ND 1.16 J 4.98 J 2.39 J 3.05 J 2.11 J 4.98 J 2.34 J 1.53 J 2.94 J 6.93 J -- 2.94 J -- -- -- -- -- 2.31 J ND ug/L 07/17/12 -- -- 10 9.42 J ND ND ND 3.29 J ND 1.92 J 1.46 J 2.58 J ND ND 2.4 J 7.94 J -- 3.38 J -- -- -- -- -- 2.81 J ND ug/L 01/22/13 -- -- 10 14.1 ND ND -- 4.3 B 1.02 J 3.45 J 2.18 J Dry ND 1.85 B 4.36 J 14.1 -- 2.05 B 7.61 J 1.89 J 2.82 J ND -- 2.02 J 1.5 J ug/L 07/15/13 -- -- 10 12.2 ND ND -- 3.88 J ND ND 1.42 J ND -- -- 5.53 J 6.82 J -- ND 3.56 J ND ND ND -- 1.56 J ND ug/L 01/27/14 -- -- 10 7.1 J ND ND -- 4.09 J ND ND ND Dry -- -- 2.1 J 5.46 J -- ND 3.8 J 1.62 J ND ND -- 1.93 J ND ug/L 07/15/14 -- -- 10 11.2 ND ND -- 2.69 J ND 4.25 J 1.79 J ND -- -- 1.98 J 2.86 J -- ND 3.04 J ND ND ND -- 1.79 J ND ug/L 01/20/15 1.4 -- 10 8.19 J ND ND -- 3.37 J ND ND 2.03 J 3.8 J -- -- 3.55 J 4.88 J -- ND -- -- -- -- -- -- ND ug/L 07/23/15 1.4 -- 10 10.6 ND ND -- 3.62 J 1.9 J 2.38 J 2.51 J Dry -- -- 2.56 J 8.21 J -- ND 3.57 J ND 1.48 J ND -- 2.18 J ND ug/L 01/12/16 1.4 -- 10 6.65 J ND ND -- 2.99 J ND ND ND ND -- -- 2.25 J ND -- ND 3.41 J ND ND ND -- ND ND ug/L 08/01/16 1.4 -- 10 10.6 ND ND ND 2.68 J 1.48 J ND 3.32 J ND -- -- 1.81 J 4.27 J -- ND 2.99 J ND ND ND -- ND ND ug/L 01/18/17 1.4 -- 10 9.25 J ND ND -- 3.37 J ND 1.47 J 2.36 J ND -- -- 2.42 J 2.33 J -- ND 4.45 J ND ND ND -- ND ND ug/L 07/24/17 1.4 -- 10 9.67 J ND ND -- 3.93 J ND 1.92 J 2.58 J 3.38 J -- -- ND 2.77 J -- ND 4.35 J ND ND -- ND Dry ND ug/L 11 /01 / 17 1.4 -- 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND Dry ND ug/L 02/20/18 1.4 -- 10 7.57 J ND ND -- 3.46 J ND ND 2.88 J ND -- -- 2.91 J 2.19 J -- ND 4.05 J ND ND -- ND Dry ND ug/L 08/08/18 1.4 10.0 -- 8.10 B ND ND -- 3.86 B ND ND 1.78 B ND -- -- 2.00 B ND -- 1.87 B 3.34 B 1.89 B 5.67 B -- ND Dry 1.66 J ug/L 01/15/19 1.4 10.0 -- 13.6 ND ND -- 4.53 J ND ND 1.65 J ND -- -- 3.21 J ND -- ND 4.81 J ND 4.24 J -- ND Dry ND ug/L 08/14/19 1.4 10.0 -- 3.02 J ND ND -- 3.20 J ND ND 1.74 J ND -- -- 3.41 J ND -- ND 3.79 J ND ND -- ND ND ND u /L 01/13/20 1.4 10.0 -- 5.75 J ND ND -- 3.67 J ND ND ND ND -- -- 2.91 J ND -- ND 4.01 J ND ND -- ND Dry ND i GOLDER Page 6 of 19 March 2020 Project No. 19123756.100 Table 4 Summary of Detected Constituents in Groundwater for the Municipal Solid Waste Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring Constituents/Analytes Units Sample Date MDL MRL SWS Reporting Upgradient MSW Wells Sidegradient and Downgradient MSW Wells French Drain Blanks Limit MW-9 MW-16 MW-1 MW-6 MW-7 MW-11 MW-12 MW-13 MW-20 MW-21 MW-22 MW-23 MW-23A MW-24 MW-24R MW-25 MW-26 MW-27 MW-28 MW-28R Cobalt ug/L 10/01 /93 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- I MAC = 1 ug/L ug/L 07/01 /94 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- No EPA M C L u g/ L 10/01 /94 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 01 /01 /95 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /95 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /95 -- -- -- ND -- 16.5 ND 18.5 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /96 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /96 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /97 -- -- -- ND -- 15 ND 9 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /97 -- -- -- ND 8 5 ND 5 73 10 200 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /98 -- -- -- ND 2 4 ND 2 34 22 100 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /98 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /99 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 09/01 /99 -- -- -- ND ND ND ND ND 14 ND 16 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /00 -- -- -- ND ND ND ND 10 45 12 50 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 09/01 /00 -- -- -- ND ND 26 ND 12 69 11 100 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /01 -- -- -- ND ND ND ND ND 31 ND 45 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /01 -- -- -- ND ND 110 ND 16 39 ND 110 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /02 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 11/01/02 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 05/01 /03 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 10/01 /03 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /04 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 11 /01 /04 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 05/01 /05 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 11 /04/05 -- -- -- -- -- -- -- -- -- -- -- 15 ND ND ND ND 15 -- -- -- -- -- -- -- -- ug/L 12/ 12/05 -- -- -- -- -- -- -- -- -- -- -- 15 ND 18 ND ND 15 -- -- -- -- -- -- -- -- ug/L 12/ 13/05 -- -- -- -- -- -- -- -- -- -- -- 19 ND ND ND ND 15 -- -- -- -- -- -- -- -- ug/L 12/22/05 -- -- -- -- -- -- -- -- -- -- -- 15 ND 16 ND ND ND -- -- -- -- -- -- -- -- ug/L 12/30/05 -- -- 10 ND ND ND ND ND ND ND ND 18 ND ND ND ND ND -- -- -- -- -- -- -- ND ug/L 09/26/06 -- -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- ND ug/L 01/31/07 -- -- 10 ND ND 3.2 J ND ND ND ND ND 10.7 3.7 J ND ND ND 6.5 J -- -- -- -- -- -- -- ND ug/L 07/12/07 -- -- 10 ND ND 5.9 J ND ND ND ND ND 9.1 J 3.6 J ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 01/17/08 -- -- 10 ND ND 9.6 J ND ND ND ND 2.9 J 10.1 ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 07/30/08 -- -- 10 ND ND 3 J ND ND ND 1.5 J ND 5.7 J 1.6 J ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 01/21/09 -- -- 10 ND ND ND ND ND ND ND ND 5.4 J ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 07/14/09 -- -- 10 ND ND ND ND ND ND ND ND 9.56 J ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 01/07/10 -- -- 10 ND 0.536 J 0.484 J 0.561 J ND 0.686 J ND 0.57 J 8.23 J 0.83 J 1.96 J 0.782 J 0.499 J Dry -- -- -- -- -- -- 0.657 J ND ug/L 07/20/10 -- -- 10 ND ND ND ND 1.44 J ND ND 2.69 J 8.05 J 1.68 J ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 01/31/11 -- -- 10 ND ND 1.8 J ND ND 1.12 J ND ND 8.5 J ND ND ND 1.98 J Dry -- -- -- -- -- -- ND ND ug/L 07/18/11 -- -- 10 ND ND ND ND ND ND ND ND 9.85 J ND ND ND ND -- ND -- -- -- -- -- ND ND ug/L 01/24/12 -- -- 10 ND ND ND ND ND ND ND ND 9.08 J ND ND ND 2.32 J -- ND -- -- -- -- -- ND ND ug/L 07/17/12 -- -- 10 ND ND ND ND ND ND ND ND 10.1 ND ND ND 3.05 J -- ND -- -- -- -- -- ND ND ug/L 01/22/13 -- -- 10 1.65 J ND 2.51 J -- ND ND ND ND Dry ND ND 1.15 J 6.74 J -- ND 3.17 J ND ND 24.1 -- ND ND ug/L 07/15/13 -- -- 10 ND ND ND -- ND ND ND ND 6.46 J -- -- 1.57 J 2.58 J -- ND ND ND ND 27.6 -- ND ND ug/L 01/27/14 -- -- 10 ND ND ND -- ND ND ND ND Dry -- -- ND 2.54 J -- ND ND ND ND 27.8 -- 1.1 J ND ug/L 07/15/14 -- -- 10 ND ND 5.52 J -- ND ND ND ND 8.83 J -- -- ND ND -- ND ND ND ND 28.3 -- ND ND ug/L 01 /20/ 15 1.1 -- 10 ND ND 3.52 J -- ND ND ND ND 7.94 J -- -- ND 2.62 J -- ND -- -- -- -- -- -- ND ug/L 07/23/15 1.1 -- 10 ND ND 8.57 J -- ND ND ND ND Dry -- -- 1.32 J 4.14 J -- ND ND ND ND 31 -- ND ND ug/L 01/12/16 1.1 -- 10 ND ND 1.81 J -- ND ND ND ND 6.01 J -- -- ND ND -- ND ND ND ND 27.5 -- ND ND ug/L 08/01/16 1.1 -- 10 ND ND 3.37 J ND ND ND ND ND 7.98 J -- -- ND 1.26 J -- ND ND ND ND 29.2 -- ND ND ug/L 01/18/17 1.1 -- 10 ND ND 8.32 J -- ND ND ND ND 6.02 J -- -- ND ND -- ND ND ND ND 29.9 -- ND ND ug/L 07/24/17 1.1 -- 10 ND ND 2.47 J -- ND ND ND ND ND -- -- 7.67 J ND -- ND ND ND ND -- 1.57 J Dry ND ug/L 11/01/17 1.1 -- 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 2.83 J Dry ND ug/L 02/20/18 1.1 -- 10 1.58 B ND 2.01 B -- 1.13 B 1.23 B ND ND 7.35 J -- -- ND 1.61 B -- ND ND ND ND -- 2.69 B Dry 1.22 J ug/L 08/08/ 18 1.4 10.0 -- 1.73 J ND 2.29 J -- ND 1.58 J 1.60 J ND 8.97 J -- -- 1.81 J ND -- ND 1.62 J 1.48 J 2.06 J -- 4.09 J Dry ND ug/L 01/15/19 1.4 10.0 -- ND ND ND -- ND ND ND ND 7.91 J -- -- ND ND -- ND ND ND ND -- 1.83 J Dry ND ug/L 08/14/19 1.4 10.0 -- ND ND 2.18 J -- ND ND ND ND 6.41 J -- -- ND ND -- ND ND ND ND -- 3.54 J ND ND u /L 1 01/13/20 1 1.4 1 10.0 1 1 ND ND 1 1.43 J -- ND ND ND ND 5.71 J -- -- ND ND -- ND ND ND ND -- 1.85 J I Dry I ND i GOLDER Page 7 of 19 March 2020 Project No. 19123756.100 Table 4 Summary of Detected Constituents in Groundwater for the Municipal Solid Waste Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring Constituents/Analytes Units Sample Date MDL MRL SWS Reporting Upgradient MSW Wells Sidegradient and Downgradient MSW Wells French Drain Blanks Limit MW-9 MW-16 MW-1 MW-6 MW-7 MW-11 MW-12 MW-13 MW-20 MW-21 MW-22 MW-23 MW-23A MW-24 MW-24R MW-25 MW-26 MW-27 MW-28 MW-28R Copper ug/L 10/01 /93 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- NC 2L = 1000 ug/L ug/L 07/01/94 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- EPA MCL = 1300 uq/L# ug/L 10/01/94 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 01 /01 /95 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /95 -- -- -- 20 -- ND 30 30 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/L 10/01 /95 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/L 04/01 /96 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/L 10/01 /96 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /97 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /97 -- -- -- ND ND 33 ND ND 39 15 140 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /98 -- -- -- 15 13 11 ND ND 26 31 61 -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 10/01 /98 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /99 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 09/01 /99 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01/00 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 09/01 /00 -- -- -- ND ND 210 ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 04/01 /01 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /01 -- -- -- ND ND 3100 ND ND ND ND 120 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /02 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 11/01/02 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 05/01 /03 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 10/01 /03 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /04 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 11 /01 /04 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 05/01 /05 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 11 /04/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- u g/ L 12/ 12/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- ug/L 12/ 13/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- ug/L 12/22/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- ug/L 12/30/05 -- -- 200 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- ND u g/L 09/26/06 -- -- 200 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- ND ug/L 01/31/07 -- -- 10 0.7 J 0.7 J 2.3 J ND 0.9 J 0.8 J ND ND 3.1 J 9.1 J ND 0.6 J ND 4.2 J -- -- -- -- -- -- -- ND ug/L 07/12/07 -- -- 10 ND ND 2.6 J ND ND ND ND ND 2.3 J 4.4 J ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 01/17/08 -- -- 10 ND 0.6 J 2.3 J ND ND ND ND ND 19.1 1 J ND ND ND Dry -- -- -- -- -- -- 2.1 J ND ug/L 07/30/08 -- -- 10 ND ND ND ND ND ND ND ND ND 1.9 J ND ND ND Dry -- -- -- -- -- -- 5 J ND ug/L 01/21/09 -- -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- 3.1 J ND ug/L 07/14/09 -- -- 10 1.21 B 3.47 B 6.47 J ND 1.75 B 3.78 B 3.99 B 5.23 J 10.6 7.37 J 3.67 B 2.67 B 0.859 B Dry -- -- -- -- -- -- 2.66 B 1.04 J ug/L 01/07/10 -- -- 10 2.91 J ND ND ND ND ND ND ND 9.72 J 3.66 J ND ND ND Dry -- -- -- -- -- -- 2.2 J ND ug/L 07/20/10 -- -- 10 ND ND 2.1 J ND ND ND ND ND 2.69 J 2.58 J ND ND ND Dry -- -- -- -- -- -- 5.12 J ND ug/L 01/31/11 -- -- 10 ND ND 1.97 J 5.02 J ND ND ND ND 4.62 J 2.34 J 2.28 J 1.9 J ND Dry -- -- -- -- -- -- ND ND ug/L 07/18/11 -- -- 10 ND ND 1.64 J 3.63 J ND ND ND ND 4.03 J ND ND ND ND -- 2.48 J -- -- -- -- -- 2.2 J ND ug/L 01/24/12 -- -- 10 2.9 B 2.75 B 3.09 B 3.36 B 2.22 B 2.82 B 3.29 B 2.21 B 18.2 3.28 B 3.17 B 2.51 B 3.31 B -- 3.22 B -- -- -- -- -- 4.41 B 2.78 J ug/L 07/17/12 -- -- 10 ND ND ND ND ND ND ND ND 16.7 ND ND ND ND -- ND -- -- -- -- -- 1.69 J ND ug/L 01/22/13 -- -- 10 8.62 J ND ND -- ND ND 3.18 J ND Dry ND ND 10.9 8.97 J -- ND 12.8 2.21 J 1.61 J 5.71 J -- ND ND ug/L 07/15/13 -- -- 10 ND ND ND -- ND ND ND ND 3.6 J -- -- ND ND -- ND ND ND ND 5.63 J -- ND ND ug/L 01/27/14 -- -- 10 ND ND ND -- ND ND ND ND Dry -- -- ND ND -- ND ND ND ND 6.03 J -- ND ND ug/L 07/15/14 -- -- 10 ND ND ND -- ND ND ND ND 2.75 J -- -- ND ND -- ND ND ND ND 6.13 J -- ND ND ug/L 01/20/15 1.6 -- 10 ND ND ND -- ND ND ND ND 5.92 J -- -- ND ND -- 2.98 J -- -- -- -- -- -- ND ug/L 07/23/15 1.6 -- 10 ND ND ND -- ND ND ND ND Dry -- -- ND ND -- ND ND ND ND 5.08 B -- ND 1.9 J ug/L 01/12/16 1.6 -- 10 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND 5.18 B -- ND 3.52 J ug/L 08/01/16 1.6 -- 10 ND ND ND ND ND ND ND ND ND -- -- ND ND -- ND ND ND ND 6.69 J -- ND ND ug/L 01/18/17 1.6 -- 10 ND ND 2.92 B -- ND 2.07 B 1.73 B 1.95 B 2.4 B -- -- ND 2.01 B -- ND 3.47 B 1.78 B 1.92 B 8.84 B -- 9.43 B 4.8 J ug/L 07/24/17 1.6 -- 10 ND 1.90 B ND -- ND ND 2.24 B ND ND -- -- 1.89 B 1.99 B -- 2.04 B ND ND ND -- 1.86 B Dry 4.18 J ug/L 11 /01 / 17 1.6 -- 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND Dry ND ug/L 02/20/18 1.6 -- 10 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 08/08/18 1.6 10.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND 5.91 J ND ND -- ND Dry ND ug/L 01/15/19 1.6 10.0 -- 1.66 J ND 4.14 J -- ND ND ND ND 3.42 J -- -- ND ND -- ND 8.78 J ND 2.66 J -- ND Dry ND ug/L 08/14/19 1.6 10.0 -- ND ND ND -- ND ND ND ND 2.11 B -- -- ND ND -- ND ND ND ND -- ND ND 2.38 J u /L 1 01/13/20 1 1.6 1 10.0 1 1 ND ND 1 2.39 J -- ND ND ND ND 2.68 J -- -- ND ND -- ND ND ND ND -- ND I Dry I ND i GOLDER Page 8 of 19 March 2020 Project No. 19123756.100 Table 4 Summary of Detected Constituents in Groundwater for the Municipal Solid Waste Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 SWS Reporting Upgradient MSW Wells Sidegradient and Downgradient MSW Wells Detected Monitoring Constituents/Analytes Units Sample Date MDL MRL French Drain Blanks Limit MW-9 MW-16 MW-1 MW-6 MW-7 MW-11 MW-12 MW-13 MW-20 MW-21 MW-22 MW-23 MW-23A MW-24 MW-24R MW-25 MW-26 MW-27 MW-28 MW-28R Lead ug/L 10/01 /93 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- NC 2L = 15 ug/L ug/L 07/01/94 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- EPA MCL = 15 uq/L# ug/L 10/01/94 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 01 /01 /95 -- -- -- 49 -- 43 10 ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /95 -- -- -- 10 -- ND 9 ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /95 -- -- -- ND -- ND ND 134 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /96 -- -- -- ND -- ND ND 26 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /96 -- -- -- 4.47 -- 3.8 ND 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /97 -- -- -- 5 -- ND 5 65 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /97 -- -- -- ND ND ND ND 25 75 13 200 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /98 -- -- -- ND 17 ND ND 19 55 37 150 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /98 -- -- -- ND ND ND ND ND ND 10 ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /99 -- -- -- ND ND ND ND ND 13 ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/L 09/01 /99 -- -- -- ND ND ND ND ND 16 ND 27 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /00 -- -- -- ND ND 12 ND 65 48 12 89 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 09/01 /00 -- -- -- ND ND 38 ND 53 73 12 170 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /01 -- -- -- ND ND ND ND 16 20 ND 37 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /01 -- -- -- ND ND ND ND 60 24 ND 110 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /02 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 11/01/02 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 05/01 /03 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 10/01 /03 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /04 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 11 /01 /04 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 05/01 /05 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 11 /04/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND 42 -- -- -- -- -- -- -- -- ug/L 12/ 12/05 -- -- -- -- -- -- -- -- -- -- -- ND ND 67 22 ND 38 -- -- -- -- -- -- -- -- ug/L 12/ 13/05 -- -- -- -- -- -- -- -- -- -- -- ND ND 13 11 ND 43 -- -- -- -- -- -- -- -- ug/L 12/22/05 -- -- -- -- -- -- -- -- -- -- -- ND ND 33 ND ND 14 -- -- -- -- -- -- -- -- ug/L 12/30/05 -- -- 10 ND ND ND ND ND ND ND ND ND ND ND 17 ND ND -- -- -- -- -- -- -- ND ug/L 09/26/06 -- -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- ND ug/L 01/31/07 -- -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND 5.4 J -- -- -- -- -- -- -- ND ug/L 07/12/07 -- -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 01/17/08 -- -- 10 ND ND ND ND ND ND ND 5.3 J ND ND ND 3.2 J ND Dry -- -- -- -- -- -- ND ND ug/L 07/30/08 -- -- 10 3 J ND ND ND 3.3 J ND ND 4 J ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 01/21/09 -- -- 10 ND ND ND ND ND ND ND ND ND ND ND 2.5 J ND Dry -- -- -- -- -- -- 6.9 J ND ug/L 07/14/09 -- -- 10 ND 1.64 B ND ND ND ND ND ND ND ND 1.95 B ND ND Dry -- -- -- -- -- -- ND 3.4 J ug/L 01/07/10 -- -- 10 1.93 B ND ND 16 ND ND 2.68 B 1.61 B ND 1.55 B 5.21 B 2.68 B ND Dry -- -- -- -- -- -- 1.4 B 1.47 J ug/L 07/20/10 -- -- 10 ND ND ND ND 2.98 J ND ND 2.22 J ND ND ND ND ND Dry -- -- -- -- -- -- 6.43 J ND ug/L 01/31/11 -- -- 10 2.44 J 2.16 J ND ND ND ND ND ND ND ND 2.67 J ND 3.15 J Dry -- -- -- -- -- -- ND ND ug/L 07/18/11 -- -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND -- ND -- -- -- -- -- 1.91 J ND ug/L 01/24/12 -- -- 10 1.99 J 3.18 J 2.04 J ND 2.32 J ND 3.65 J ND 2.72 J ND ND 1.91 J 6.05 J -- ND -- -- -- -- -- 2.04 J ND ug/L 07/17/12 -- -- 10 ND ND ND ND ND ND ND ND ND ND 2.38 J ND 5.95 J -- 2.92 J -- -- -- -- -- ND ND ug/L 01/22/13 -- -- 10 2.96 B ND ND -- ND 2.1 B 3.59 B ND Dry 2.74 J ND 3.94 B 4.74 B -- ND 3.22 B 2.49 B 2.49 B ND -- ND 1.97 J ug/L 07/15/13 -- -- 10 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 01/27/14 -- -- 10 ND ND ND -- ND ND ND ND Dry -- -- ND 3.29 J -- ND ND ND 2.32 J ND -- ND ND ug/L 07/15/14 -- -- 10 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 01 /20/ 15 2.1 -- 10 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND -- -- -- -- -- -- ND ug/L 07/23/15 3.1 -- 10 ND ND ND -- ND ND ND ND Dry -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 01/12/16 3.1 -- 10 ND ND ND -- ND ND ND 3.53 J ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 08/01/16 3.1 -- 10 ND ND ND ND ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 01/18/17 3.1 -- 10 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 07/24/17 3.1 -- 10 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 11 /01 / 17 3.1 -- 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND Dry ND ug/L 02/20/18 3.1 -- 10 ND ND 3.57 J -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 08/08/18 3.1 10.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND 5.07 J -- ND Dry ND ug/L 01/15/19 3.1 10.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND 3.86 J -- ND Dry ND ug/L 08/14/19 3.1 10.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND ND ND u /L 01/13/20 3.1 10.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND Mercury, NC21- = 1 ug/L ug/L 01/18/17 0.17 -- 0.2 ND ND ND -- ND ND ND ND ND -- -- 0.352 ND -- ND ND ND ND ND -- ND ND EPA MCL = 2 ug/L ug/L 07/24/17 0.17 -- 0.2 ND ND ND -- ND ND ND ND 0.706 -- -- 0.151 B ND -- ND ND ND ND -- ND Dry 0.114 J (Verification) ug/L 08/24/17 0.17 -- 0.2 -- -- -- -- -- -- -- -- 0.165 J -- -- -- -- -- -- -- -- -- -- -- -- ND (Dissolved) ug/L 08/24/17 0.17 -- 0.2 -- -- -- -- -- -- -- -- ND -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 11 /01 / 17 0.17 -- 0.2 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND -- ND u /L 1 08/08/18 1 0.15 1 0.200 1 -- I-- -- I Dry I ND i GOLDER Page 9 of 19 March 2020 Project No. 19123756.100 Table 4 Summary of Detected Constituents in Groundwater for the Municipal Solid Waste Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring Constituents/Analytes Units Sample Date MDL MRL SWS Reporting Upgradient MSW Wells Sidegradient and Downgradient MSW Wells French Drain Blanks Limit MW-9 MW-16 MW-1 MW-6 MW-7 MW-11 MW-12 MW-13 MW-20 MW-21 MW-22 MW-23 MW-23A MW-24 MW-24R MW-25 MW-26 MW-27 MW-28 MW-28R Nickel ug/L 10/01 /93 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- NC 2L = 100 ug/L ug/L 07/01/94 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- No EPA M C L u g/ L 10/01 /94 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 01 /01 /95 -- -- -- ND -- ND 30 ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /95 -- -- -- ND -- ND ND 40 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /95 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /96 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /96 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /97 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /97 -- -- -- ND ND ND ND ND 120 ND 410 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /98 -- -- -- ND ND ND ND ND 60 ND 240 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /98 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /99 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 09/01 /99 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/L 05/01 /00 -- -- -- ND ND ND ND ND ND ND 82 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 09/01 /00 -- -- -- ND ND ND ND ND ND ND 120 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /01 -- -- -- ND ND ND ND ND ND ND 68 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /01 -- -- -- ND ND 230 ND ND 81 ND 290 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /02 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 11/01/02 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 05/01 /03 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 10/01 /03 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /04 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 11 /01 /04 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 05/01 /05 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 11 /04/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- u g/ L 12/ 12/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- ug/L 12/ 13/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- ug/L 12/22/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- ug/L 12/30/05 -- -- 50 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- ND u g/L 09/26/06 -- -- 50 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- ND ug/L 01/31/07 -- -- 50 6.4 J 2.3 J ND ND ND ND ND ND ND ND ND 3.9 J ND 14.1 J -- -- -- -- -- -- -- ND ug/L 07/12/07 -- -- 50 6.4 J ND 2.9 J ND ND ND ND ND ND 1.7 J ND 2.7 J ND Dry -- -- -- -- -- -- 5.1 J ND ug/L 01/17/08 -- -- 50 3.6 J ND 3.1 J ND ND ND ND 5.8 J 2.6 J ND ND 4.7 J ND Dry -- -- -- -- -- -- ND ND ug/L 07/30/08 -- -- 50 2.2 B ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND 12.4 J ug/L 01/21/09 -- -- 50 6.2 J ND 3.3 J ND 3.6 J 2.1 J 2.6 J ND 1.9 J 2.7 J ND 7.1 J ND Dry -- -- -- -- -- -- 2 J ND ug/L 07/14/09 -- -- 50 4.56 J ND 2.65 B ND 2.03 B 0.986 B 1.57 B 1.22 B 2.17 B 0.893 B ND 4.22 B ND Dry -- -- -- -- -- -- ND 0.882 J ug/L 01/07/10 -- -- 50 2.78 J ND ND ND ND ND ND ND ND ND ND 2.82 J ND Dry -- -- -- -- -- -- ND ND ug/L 07/20/10 -- -- 50 2.42 J ND ND ND ND ND ND 2.4 J ND ND ND 3.49 J ND Dry -- -- -- -- -- -- ND ND ug/L 01/31/11 -- -- 50 5.26 J ND 4.5 J ND ND ND 1.9 J ND 3.77 J ND 3.03 J 5.81 J 3.23 J Dry -- -- -- -- -- -- ND ND ug/L 07/18/11 -- -- 50 5.98 J ND 2.95 J ND ND ND ND ND 2 J ND ND 5.04 J 2.95 J -- 3.07 J -- -- -- -- -- ND ND ug/L 01/24/12 -- -- 50 7.66 J ND 3.93 J ND 2.36 J 2.73 J 3.26 J 2.29 J 5.92 J 2.89 J 1.96 J 6.07 J 6.1 J -- 3.01 J -- -- -- -- -- ND ND ug/L 07/17/12 -- -- 50 5.01 J ND 2.3 J ND ND ND ND ND 1.94 J ND ND 3.32 J 3.74 J -- ND -- -- -- -- -- ND ND ug/L 01/22/13 -- -- 50 9.85 J 3.87 J 3.61 J -- ND ND 3.52 J 2.28 J Dry ND ND 6.87 J 10.8 J -- ND 4.28 J 3.2 J 1.94 J 58 -- ND ND ug/L 07/15/13 -- -- 50 4.27 J ND 2.1 J -- ND ND ND ND ND -- -- 6.75 J 4.38 J -- ND ND ND ND 40.9 J -- ND ND ug/L 01/27/14 -- -- 50 4.79 J ND 3.28 J -- ND ND ND ND Dry -- -- 4.79 J 3.49 J -- ND ND ND ND 40.7 J -- ND ND ug/L 07/15/14 -- -- 50 4.02 J 2.78 J 2.07 J -- ND ND ND ND ND -- -- 4.21 J ND -- ND ND ND ND 40.4 J -- ND ND ug/L 01/20/15 1.8 -- 50 4.98 J 2.51 J 2.77 J -- ND ND ND ND 9.85 J -- -- 5.92 J ND -- ND -- -- -- -- -- -- ND ug/L 07/23/15 1.8 -- 50 3.76 J ND 2.97 J -- ND ND ND ND Dry -- -- 4.75 J 4.14 J -- ND ND ND ND 44.1 J -- ND ND ug/L 01/12/16 1.8 -- 50 5.27 J ND ND -- ND 2.11 J ND ND ND -- -- 6.77 J ND -- ND ND ND ND 42.9 J -- ND ND ug/L 08/01/16 2.2 -- 50 3.96 J ND ND ND ND 2.87 J ND ND ND -- -- 4.06 J 3.1 J -- ND ND ND ND 43.7 J -- ND ND ug/L 01/18/17 2.2 -- 50 6.93 J ND 4.09 J -- ND ND ND ND ND -- -- 7.85 J 2.25 J -- ND ND ND ND 47.3 J -- ND ND ug/L 07/24/17 2.2 -- 50 4.30 J ND 3.40 J -- ND ND ND ND 7.78 J -- -- ND 3.36 J -- ND ND ND ND -- ND Dry ND ug/L 11 /01 / 17 2.2 -- 50 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND Dry ND ug/L 02/20/18 2.2 -- 50 4.27 J ND 3.30 J -- 4.69 J ND ND ND 2.28 J -- -- 8.19 J 3.49 J -- ND ND ND ND -- 3.24 J Dry ND ug/L 08/08/18 2.2 10.0 -- 4.46 J ND 2.96 J -- ND ND 3.02 J ND ND -- -- 6.97 J 3.31 J -- ND ND ND 2.72 J -- 2.75 J Dry ND ug/L 01/15/19 2.2 10.0 -- 5.86 J ND ND -- ND 11.1 ND ND 2.30 J -- -- 9.95 J 3.74 J -- ND ND ND 2.36 J -- 2.32 J Dry ND ug/L 08/14/19 2.2 10.0 -- 8.69 J ND 3.29 J -- ND 3.21 J ND ND ND -- -- 7.22 J 3.06 J -- ND ND ND ND -- 2.33 J ND ND u /L 01/13/20 2.2 10.0 -- 6.96 J ND 3.11 J -- ND ND ND ND 2.86 J -- -- 9.78 J ND -- ND ND ND ND -- 2.51 J Dry ND i GOLDER Page 10 of 19 March 2020 Project No. 19123756.100 Table 4 Summary of Detected Constituents in Groundwater for the Municipal Solid Waste Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring Constituents/Analytes Units Sample Date MDL MRL SWS Reporting Upgradient MSW Wells Sidegradient and Downgradient MSW Wells French Drain Blanks Limit MW-9 MW-16 MW-1 MW-6 MW-7 MW-11 MW-12 MW-13 MW-20 MW-21 MW-22 MW-23 MW-23A MW-24 MW-24R MW-25 MW-26 MW-27 MW-28 MW-28R Selenium ug/L 10/01 /93 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- NC 2L = 20 ug/L ug/L 07/01/94 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- EPA MCL = 50 ug/L ug/L 10/01/94 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 01 /01 /95 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /95 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /95 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /96 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /96 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /97 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 10/01 /97 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 04/01 /98 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /98 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /99 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 09/01 /99 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 05/01 /00 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 09/01 /00 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /01 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /01 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 04/01 /02 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 11 /01 /02 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /03 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /03 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 05/01 /04 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 11 /01 /04 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 05/01 /05 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 11 /04/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- ug/L 12/ 12/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- u g/ L 12/ 13/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- u g/L 12/22/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- ug/L 12/30/05 -- -- 20 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- ND ug/L 09/26/06 -- -- 20 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- ND ug/L 01/31/07 -- -- 10 ND 2.4 B ND ND 2 B ND 2.3 B ND ND ND ND 6.4 J ND ND -- -- -- -- -- -- -- 2 J ug/L 07/12/07 -- -- 10 ND ND ND ND 3.4 J ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 01/17/08 -- -- 10 2.5 J ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 07/30/08 -- -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 01/21/09 -- -- 10 ND ND ND ND ND ND ND ND ND 3.7 J ND ND 4.4 J Dry -- -- -- -- -- -- 4.1 J ND ug/L 07/14/09 -- -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 01/07/10 -- -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 07/20/10 -- -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 01/31/11 -- -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 07/18/11 -- -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND -- ND -- -- -- -- -- ND ND ug/L 01/24/12 -- -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND -- ND -- -- -- -- -- ND ND ug/L 07/17/12 -- -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND -- ND -- -- -- -- -- ND ND ug/L 01/22/13 -- -- 10 ND ND ND -- ND ND ND ND Dry ND ND ND ND -- ND ND ND ND ND -- ND ND ug/L 07/15/13 -- -- 10 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 01/27/14 -- -- 10 ND ND ND -- ND ND ND ND Dry -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 07/15/14 -- -- 10 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 01 /20/ 15 5 -- 10 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND -- -- -- -- -- -- ND ug/L 07/23/15 5 -- 10 ND ND ND -- ND ND ND ND Dry -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 01/12/16 5 -- 10 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 08/01/16 6.2 -- 10 ND ND ND ND ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 01/18/17 6.2 -- 10 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 07/24/17 6.2 -- 10 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 11 /01 / 17 6.2 -- 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND Dry ND ug/L 02/20/18 6.2 -- 10 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 08/08/18 6.2 10.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 01/15/19 6.2 10.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 08/14/19 6.2 10.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND ND ND u /L 1 01/13/20 1 6.2 1 10.0 1 1 ND ND I ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND I Dry I ND i GOLDER Page 11 of 19 March 2020 Project No. 19123756.100 Table 4 Summary of Detected Constituents in Groundwater for the Municipal Solid Waste Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring Constituents/Analytes Units Sample Date MDL MRL SWS Reporting Upgradient MSW Wells Sidegradient and Downgradient MSW Wells French Drain Blanks Limit MW-9 MW-16 MW-1 MW-6 MW-7 MW-11 MW-12 MW-13 MW-20 MW-21 MW-22 MW-23 MW-23A MW-24 MW-24R MW-25 MW-26 MW-27 MW-28 MW-28R Silver ug/L 10/01 /93 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- NC 2L = 20 ug/L ug/L 07/01 /94 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- EPA MCL = 100 ug/L ug/L 10/01/94 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 01 /01 /95 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /95 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /95 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /96 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /96 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /97 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /97 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /98 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /98 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /99 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 09/01 /99 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /00 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 09/01 /00 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /01 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /01 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /02 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 11 /01 /02 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /03 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /03 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /04 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 11 /01 /04 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /05 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 12/01/05 -- -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- ND ug/L 09/26/06 -- -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- ND ug/L 01/31/07 -- -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- ND ug/L 07/12/07 -- -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 01/17/08 -- -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 07/30/08 -- -- 10 ND ND ND ND ND ND 3.1 J ND ND ND ND ND 2.1 J Dry -- -- -- -- -- -- ND ND ug/L 01/21/09 -- -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 07/14/09 -- -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 01/07/10 -- -- 10 ND ND ND ND ND ND 0.484 J 0.63 J ND ND ND 0.715 J 0.548 J Dry -- -- -- -- -- -- 0.714 J ND ug/L 07/20/10 -- -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 01/31/11 -- -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 07/18/11 -- -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND -- ND -- -- -- -- -- ND ND ug/L 01/24/12 -- -- 10 2.17 J ND ND 2.36 J 2.11 J 6.57 J 2.91 J ND ND ND 3.06 J ND ND -- ND -- -- -- -- -- ND ND ug/L 07/17/12 -- -- 10 ND ND ND ND ND ND 5.51 J ND ND 15.3 ND ND ND -- 9.54 J -- -- -- -- -- ND ND ug/L 01/22/13 -- -- 10 ND 2.7 J ND -- ND ND 2.44 J ND Dry 6.29 J ND ND ND -- ND ND ND ND ND -- ND ND ug/L 07/15/13 -- -- 10 ND 2.55 J 2.69 J -- 3.89 J 2.1 J 4.91 J 4.42 J ND -- -- 2.03 J 2.17 J -- 2.3 J ND ND ND ND -- ND ND ug/L 01/27/14 -- -- 10 ND ND ND -- 1.93 J ND ND ND Dry -- -- ND ND -- ND ND 4.15 J ND ND -- ND ND ug/L 07/15/14 -- -- 10 ND ND ND -- 3.26 J ND ND ND ND -- -- ND ND -- 6.25 J 1.96 J ND ND ND -- ND ND ug/L 01/20/15 1.9 -- 10 4.77 B 6.84 B 3.14 B -- 4.15 B 2.29 B 2.41 B 2.77 B 26.6 -- -- 29 (8.07 J) 3.71 B -- 6.21 B -- -- -- -- -- -- 3.39 J (Verification) ug/L 03/20/ 15 1.9 -- 10 -- -- -- -- -- -- -- -- ND -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 07/23/15 1.9 -- 10 ND ND ND -- ND ND ND ND Dry -- -- ND 9.35 J -- ND ND ND ND ND -- ND ND ug/L 01/12/16 1.9 -- 10 ND ND ND -- ND 2.11 J ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 08/01/16 1.9 -- 10 ND ND ND ND ND 4.08 J ND ND ND -- -- ND 12.4 -- ND ND ND ND ND -- ND ND ug/L 01/18/17 1.9 -- 10 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 07/24/17 1.9 -- 10 ND ND ND -- ND ND ND ND ND -- -- ND 1.90 J -- ND ND ND ND -- ND Dry ND ug/L 11 /01 / 17 1.9 -- 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND Dry ND ug/L 02/20/18 1.9 -- 10 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 08/08/18 1.9 10.0 -- ND ND ND -- 2.15 J ND ND 2.48 J ND -- -- ND 4.02 J -- 5.12 J ND ND ND -- ND Dry ND ug/L 01/15/19 1.9 10.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 08/14/19 1.9 10.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND ND ND u /L 1 01/13/20 1 1.9 1 10.0 1 1 ND ND I ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND I Dry I ND i GOLDER Page 12 of 19 March 2020 Project No. 19123756.100 Table 4 Summary of Detected Constituents in Groundwater for the Municipal Solid Waste Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring Constituents/Analytes Units Sample Date MDL MRL SWS Reporting Upgradient MSW Wells Sidegradient and Downgradient MSW Wells French Drain Blanks Limit MW-9 MW-16 MW-1 MW-6 MW-7 MW-11 MW-12 MW-13 MW-20 MW-21 MW-22 MW-23 MW-23A MW-24 MW-24R MW-25 MW-26 MW-27 MW-28 MW-28R Thallium ug/L 10/01 /93 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- I MAC = 0.2 ug/L ug/L 07/01 /94 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- EPA MCL = 2 ug/L ug/L 10/01/94 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 01 /01 /95 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /95 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /95 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /96 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /96 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /97 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 10/01 /97 -- -- -- ND -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 04/01 /98 -- -- -- ND -- ND ND ND ND ND 7 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /98 -- -- -- ND -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /99 -- -- -- ND -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 09/01 /99 -- -- -- ND -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 05/01 /00 -- -- -- ND -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 09/01 /00 -- -- -- ND -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /01 -- -- -- ND -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /01 -- -- -- ND -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 04/01 /02 -- -- -- ND -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 11 /01 /02 -- -- -- ND -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /03 -- -- -- ND -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /03 -- -- -- ND -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /04 -- -- -- ND -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 11 /01 /04 -- -- -- ND -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 05/01 /05 -- -- -- ND -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 11 /04/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- ug/L 12/ 12/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- ug/L 12/ 13/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- ug/L 12/22/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- ug/L 12/30/05 -- -- 5.5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- ND ug/L 09/26/06 -- -- 5.5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- ND ug/L 01/31/07 -- -- 5.5 ND 0.106 J ND ND ND ND ND 0.046 J ND 0.047 J 0.054 J ND ND 0.468 J -- -- -- -- -- -- -- ND ug/L 07/12/07 -- -- 5.5 ND ND ND ND ND ND ND 0.045 J ND 0.037 J 0.038 J 0.041 J ND Dry -- -- -- -- -- -- ND ND ug/L 01/17/08 -- -- 5.5 ND ND ND ND 0.049 J 0.06 J ND 0.205 J ND ND 0.042 J 0.086 J ND Dry -- -- -- -- -- -- ND ND ug/L 07/30/08 -- -- 5.5 ND ND 0.097 J ND 0.066 J 0.072 J ND 0.083 J ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 01/21/09 -- -- 5.5 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 07/14/09 -- -- 5.5 ND ND ND ND 0.084 J ND ND 0.05 J ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 01/07/10 -- -- 5.5 ND ND ND ND ND ND ND ND ND ND 0.125 J ND ND Dry -- -- -- -- -- -- ND ND ug/L 07/20/10 -- -- 5.5 ND ND ND ND ND ND ND 0.157 J ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 01/31/11 -- -- 5.5 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 07/18/11 -- -- 5.5 ND ND ND ND ND ND ND ND ND ND ND ND ND -- ND -- -- -- -- -- ND ND ug/L 01/24/12 -- -- 5.5 ND ND ND ND ND ND ND ND ND ND ND ND 0.16 J -- ND -- -- -- -- -- ND ND ug/L 07/17/12 -- -- 5.5 ND ND ND ND 0.138 J ND ND ND ND ND ND ND 0.263 J -- ND -- -- -- -- -- ND ND ug/L 01/22/13 -- -- 5.5 ND ND ND -- 0.407 J ND ND ND Dry ND ND ND 0.324 J -- ND ND ND ND ND -- ND ND ug/L 07/15/13 -- -- 5.5 ND ND ND -- ND ND ND ND ND -- -- ND 0.188 J -- ND ND ND ND ND -- ND ND ug/L 01/27/14 -- -- 5.5 ND ND ND -- ND ND ND ND Dry -- -- ND 0.142 J -- ND ND ND ND 0.135 J -- ND ND ug/L 07/15/14 -- -- 5.5 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND 0.136 J -- ND ND ug/L 01 /20/ 15 0.11 -- 5.5 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND -- -- -- -- -- -- ND ug/L 07/23/15 0.11 -- 5.5 ND ND ND -- ND ND ND ND Dry -- -- ND 0.291 J -- ND ND ND ND 0.138 J -- ND ND ug/L 01/12/16 0.11 -- 5.5 ND ND 0.114 J -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND 0.16 J -- ND ND ug/L 08/01/16 0.11 -- 5.5 ND ND ND ND ND ND ND ND ND -- -- ND ND -- ND ND ND ND 0.156 J -- ND ND ug/L 01/18/17 0.11 -- 5.5 ND ND 0.349 J -- 0.335 J 0.384 J 0.387 J 0.51 J 0.188 J -- -- 0.502 J 0.225 J -- 0.18 J ND 0.35 J 0.306 J 0.581 J -- 0.337 J ND ug/L 07/24/17 0.11 -- 5.5 0.147 J 0.152 J ND -- 0.134 J ND 0.133 J 0.223 J 0.193 J -- -- ND ND -- ND ND 0.110 J ND -- 0.172 J Dry ND ug/L 11/01/17 0.11 -- 5.5 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND Dry ND ug/L 02/20/18 0.11 -- 5.5 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 08/08/18 0.55 5.00 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 01/15/19 0.55 5.00 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 08/14/19 0.22 2.00 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND ND ND u /L 1 01/13/20 1 0.22 1 2.00 1 1 ND ND I ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND I Dry I ND i GOLDER Page 13 of 19 March 2020 Project No. 19123756.100 Table 4 Summary of Detected Constituents in Groundwater for the Municipal Solid Waste Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring Constituents/Analytes Units Sample Date MDL MRL SWS Reporting Upgradient MSW Wells Sidegradient and Downgradient MSW Wells French Drain Blanks Limit MW-9 MW-16 MW-1 MW-6 MW-7 MW-11 MW-12 MW-13 MW-20 MW-21 MW-22 MW-23 MW-23A MW-24 MW-24R MW-25 MW-26 MW-27 MW-28 MW-28R Vanadium ug/L 10/01 /93 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- I MAC = 0.3 ug/L ug/L 07/01 /94 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- No EPA M C L u g/ L 10/01 /94 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 01 /01 /95 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /95 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /95 -- -- -- ND -- ND ND 150 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /96 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /96 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /97 -- -- -- 14 -- ND 8 160 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /97 -- -- -- 16 33 60 ND 55 720 66 1000 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /98 -- -- -- 17 33 12 ND 27 330 140 670 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /98 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /99 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/L 09/01 /99 -- -- -- ND ND ND ND ND 55 ND 69 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /00 -- -- -- ND ND 50 ND 48 200 47 220 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 09/01 /00 -- -- -- ND ND 220 ND ND 290 ND 420 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /01 -- -- -- ND ND ND ND ND 150 ND 210 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /01 -- -- -- 58 ND 250 ND 92 320 ND 670 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /02 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 11/01/02 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 05/01 /03 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 10/01 /03 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /04 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 11 /01 /04 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 05/01 /05 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 11 /04/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND 68 -- -- -- -- -- -- -- -- ug/L 12/ 12/05 -- -- -- -- -- -- -- -- -- -- -- ND ND 85 ND ND 68 -- -- -- -- -- -- -- -- ug/L 12/ 13/05 -- -- -- -- -- -- -- -- -- -- -- ND 58 ND ND ND 79 -- -- -- -- -- -- -- -- ug/L 12/22/05 -- -- -- -- -- -- -- -- -- -- -- ND ND 41 ND ND ND -- -- -- -- -- -- -- -- ug/L 12/30/05 -- -- 25 ND ND 42 ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- ND ug/L 09/26/06 -- -- 25 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- ND ug/L 01 /31 /07 -- -- 25 3.4 J 7.4 J ND 1 J 1.4 J 1.7 J 1.2 J 2.5 J ND 28.2 ND 3.2 J 3 J 20.1 -- -- -- -- -- -- -- ND ug/L 07/12/07 -- -- 25 3.3 J ND 3.6 J ND ND 2.4 J ND ND ND 20.7 J ND ND 4.4 J Dry -- -- -- -- -- -- 5.3 J ND ug/L 01/17/08 -- -- 25 3.7 J 2.5 J ND 1.9 J ND 5.6 J 1.4 J 17.7 J 14.8 J 3.8 J 1 J 4.9 J 7.1 J Dry -- -- -- -- -- -- 8.2 J ND ug/L 07/30/08 -- -- 25 4.6 J 2.2 J ND ND 3 J 3.3 J 3.9 J 2.9 J ND 15.8 J 1.9 J 2.3 J 6.2 J Dry -- -- -- -- -- -- 8.3 J ND ug/L 01/21/09 -- -- 25 3.7 J ND ND ND ND 3.2 J 3 J ND ND 2.4 J 2.5 J 6.9 J 5.9 J Dry -- -- -- -- -- -- 7.9 J ND ug/L 07/14/09 -- -- 25 3.41 J 1 J 2.67 J 1.08 J 0.77 J 2.39 J 1.57 J 2.39 J 1.4 J 4.34 J ND 1.77 J 8.99 J Dry -- -- -- -- -- -- 7.11 J ND ug/L 01/07/10 -- -- 25 2.71 J 0.912 J ND ND 0.949 J 1.29 J 2.19 J 1.79 J 1.46 J 3.84 J 7.22 J 3.46 J 9.35 J Dry -- -- -- -- -- -- 5.88 J ND ug/L 07/20/ 10 -- -- 25 3.61 J ND 2.88 J ND 4.13 J 2.68 J 3.71 J 12.3 J 1.47 J 6.87 J ND 2.95 J 8.3 J Dry -- -- -- -- -- -- 8.55 J ND ug/L 01/31/11 -- -- 25 2.94 J ND ND ND ND 5.46 J 5.52 J 1.57 J ND 4.85 J ND ND 16.5 J Dry -- -- -- -- -- -- 6.72 J ND ug/L 07/18/11 -- -- 25 3.12 J ND ND ND ND 1.75 J 2.43 J ND ND 3.24 J ND ND 16.8 J -- 3.08 J -- -- -- -- -- 7.83 J ND ug/L 01/24/12 -- -- 25 2.38 J ND ND ND ND ND 3.24 J ND 9.88 J 2.01 J ND ND 20.4 J -- ND -- -- -- -- -- 6.19 J ND ug/L 07/17/12 -- -- 25 2.95 J ND ND ND ND 1.52 J 3.29 J ND 12.2 J 2.46 J ND ND 23.6 J -- 4.18 J -- -- -- -- -- 9.15 J ND ug/L 01/22/13 -- -- 25 13.6 J ND ND -- ND 1.55 J 2.69 J ND Dry ND ND 5.83 J 34.9 -- 1.68 J 22.9 J 4.3 J 6.46 J ND -- 7.44 J ND ug/L 07/15/13 -- -- 25 2.98 J ND ND -- ND 1.48 J ND ND 2.66 J -- -- 6.04 J 21.3 J -- ND 7.48 J 2.4 J ND ND -- 7.22 J ND ug/L 01/27/14 -- -- 25 2.64 J ND ND -- ND ND ND ND Dry -- -- ND 16.3 J -- ND 8.25 J 3.68 J 1.61 J ND -- 7.75 J ND ug/L 07/15/14 -- -- 25 3.28 J ND ND -- ND 1.62 J 5.83 J ND ND -- -- ND 10.4 J -- ND 5.53 J ND ND ND -- 6.98 J ND ug/L 01/20/15 1.4 -- 25 2.83 J ND ND -- ND ND ND ND 3.12 J -- -- ND 14.9 J -- ND -- -- -- -- -- -- ND ug/L 07/23/15 1.4 -- 25 2.6 J ND 1.66 J -- ND 3.26 J 2.89 J ND Dry -- -- ND 19.4 J -- ND 6.04 J ND ND ND -- 8.3 J ND ug/L 01/12/16 1.4 -- 25 2.99 J ND ND -- ND ND 1.99 J ND ND -- -- ND 7.77 J -- ND 7.85 J ND ND ND -- 6.75 J ND ug/L 08/01/16 1.4 -- 25 3.34 J ND ND ND ND 3.45 J 1.97 J 1.58 J ND -- -- ND 13 J -- ND 6.45 J ND 1.66 J ND -- 8.06 J ND ug/L 01/18/17 1.4 -- 25 2.91 J ND ND -- ND 2.70 J 2.14 J ND ND -- -- ND 8.59 J -- ND 8.06 J ND 2.45 J ND -- 4.9 J ND ug/L 07/24/17 1.4 -- 25 2.72 J ND ND -- ND 2.51 J 2.15 J ND ND -- -- ND 9.21 J -- ND 7.82 J ND ND -- ND Dry ND ug/L 11 /01 / 17 1.4 -- 25 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND Dry ND ug/L 02/20/18 1.4 -- 25 4.37 J ND 2.24 J -- 1.60 J 2.93 J ND 2.50 J ND -- -- 1.62 J 9.34 J -- 2.21 J 9.41 J 1.75 J 1.84 J -- ND Dry ND ug/L 08/08/18 1.4 10.0 -- 2.92 J ND ND -- ND 2.25 J 2.10 J 1.72 J ND -- -- ND 5.33 J -- ND 8.13 J ND 7.37 J -- ND Dry ND ug/L 01/15/19 1.4 10.0 -- 3.20 J ND ND -- ND 1.57 J ND ND ND -- -- ND 6.52 J -- ND 9.10 J ND 5.16 J -- ND Dry ND ug/L 08/14/19 1.4 10.0 -- 2.56 J ND ND -- ND ND ND ND ND -- -- ND 5.07 J -- ND 7.26 J ND ND -- ND 2.47 J ND u /L 1 01/13/20 1 1.4 1 10.0 1 1 3.08 J ND ND -- ND 2.17 J ND 2.09 J ND -- -- ND 5.80 J -- ND 8.23 J ND ND -- ND I Dry I ND i GOLDER Page 14 of 19 March 2020 Project No. 19123756.100 Table 4 Summary of Detected Constituents in Groundwater for the Municipal Solid Waste Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring Constituents/Analytes Units Sample Date MDL MRL SWS Reporting Upgradient MSW Wells Sidegradient and Downgradient MSW Wells French Drain Blanks Limit MW-9 MW-16 MW-1 MW-6 MW-7 MW-11 MW-12 MW-13 MW-20 MW-21 MW-22 MW-23 MW-23A MW-24 MW-24R MW-25 MW-26 MW-27 MW-28 MW-28R Zinc ug/L 10/01 /93 -- -- -- 20 -- 30 ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- NC 2L = 1000 ug/L ug/L 07/01/94 -- -- -- ND -- ND 20 ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- EPA MCL = 5000 ug/L* ug/L 10/01/94 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 01 /01 /95 -- -- -- 30 -- 20 20 20 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /95 -- -- -- 20 -- 20 120 20 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /95 -- -- -- ND -- ND 53.7 176 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /96 -- -- -- ND -- ND ND 70 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /96 -- -- -- 52.1 -- 26.2 ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /97 -- -- -- 22 -- 20 30 110 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /97 -- -- -- 35 45 36 11 61 670 91 1600 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /98 -- -- -- 32 41 140 32 37 350 180 880 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /98 -- -- -- ND ND ND ND ND ND 68 59 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /99 -- -- -- 140 ND ND 110 ND 58 58 ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 09/01 /99 -- -- -- 64 52 74 ND 52 120 73 110 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /00 -- -- -- ND ND ND ND 70 250 77 270 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 09/01 /00 -- -- -- ND ND 100 ND ND 330 ND 480 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /01 -- -- -- ND ND ND ND ND 170 740 670 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /01 -- -- -- 51 ND 940 ND 93 370 ND 920 -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 04/01 /02 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 11 /01 /02 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /03 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 10/01 /03 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 05/01 /04 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- u g/ L 11 /01 /04 -- -- -- ND ND ND ND ND 90 ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /05 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 11 /04/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND 3400 -- -- -- -- -- -- -- -- ug/L 12/ 12/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND 3000 -- -- -- -- -- -- -- -- ug/L 12/ 13/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND 2700 -- -- -- -- -- -- -- -- ug/L 12/22/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND 2000 -- -- -- -- -- -- -- -- ug/L 12/30/05 -- -- 50 ND ND ND ND ND ND ND ND ND ND ND ND ND 1500 -- -- -- -- -- -- -- ND ug/L 09/26/06 -- -- 50 ND ND ND ND ND ND ND ND ND ND ND ND ND 631 -- -- -- -- -- -- -- ND ug/L 01/31/07 -- -- 10 ND 9.3 J 10.4 ND ND 27.9 ND ND 9.8 J 13.9 ND 1.9 J 2.7 J 562 -- -- -- -- -- -- -- ND ug/L 07/12/07 -- -- 10 ND ND 12.4 ND ND 6.3 J ND ND 10.6 20.9 ND 5 J ND Dry -- -- -- -- -- -- 4.4 J ND ug/L 01/17/08 -- -- 10 1.2 J 2.6 J 7.2 J 2.3 J 1.3 J 6.4 J 2.6 J 21.1 39.1 2.8 J 1.3 J 10.3 2.7 J Dry -- -- -- -- -- -- 3.3 J ND ug/L 07/30/08 -- -- 10 4.4 J ND 10 ND ND 19 5.7 J 6.2 J 9.8 J 39.8 ND 9 J ND Dry -- -- -- -- -- -- 22.7 ND ug/L 01/21/09 -- -- 10 ND ND 6.8 J ND ND 5.1 J 4.8 J ND 9.3 J 4.2 J 5.1 J 12.9 ND Dry -- -- -- -- -- -- 4.7 J ND ug/L 07/ 14/09 -- -- 10 3.67 J 4.94 J 6.76 J ND 7.18 J ND 5.11 J ND 14.2 4.1 J ND 7.89 J ND Dry -- -- -- -- -- -- 4.47 J ND ug/L 01/07/10 -- -- 10 3.29 J 3.78 J 6.75 J 3.86 J 2.49 J 7.49 J 9.39 J 7.74 J 11.7 4.47 J 9.95 J 17 2.41 J Dry -- -- -- -- -- -- 4.68 J ND ug/L 07/20/10 -- -- 10 ND 5.96 J 10.4 8.13 J 4.9 J 11.1 7.63 J 16.3 11.2 6.12 J ND 8.11 J ND Dry -- -- -- -- -- -- 12.2 ND ug/L 01/31/11 -- -- 10 4.03 J ND 7.83 J 9.2 J ND 7.96 J 9.14 J ND 11.8 5.3 J 4.98 J 5.39 J 14 Dry -- -- -- -- -- -- ND ND ug/L 07/18/11 -- -- 10 3.87 J ND 8.8 J 3.93 J ND 5.05 J 7.07 J 4.16 J 14.6 4.44 J ND 4.85 J 16.8 -- 10.4 -- -- -- -- -- ND ND ug/L 01 /24/ 12 -- -- 10 6.31 B ND 5.44 B ND ND ND 5.54 B ND 16.6 B 5.48 B ND ND 24.2 B -- 4.45 B -- -- -- -- -- 4.1 B 9.27 J ug/L 07/17/12 -- -- 10 ND ND 9 J ND ND ND 6.43 J ND 16.4 6.22 J ND ND 29.3 -- 9.14 J -- -- -- -- -- 9.21 J ND ug/L 01/22/13 -- -- 10 14.1 ND 9.08 J -- ND ND 5.63 J ND Dry ND 9.11 J 16.7 57.2 -- 30 13.5 7.14 J 9.86 J 15.6 -- ND ND ug/L 07/15/13 -- -- 10 ND ND 4.22 J -- ND ND ND ND 10.6 -- -- 11.5 22.6 -- ND ND 4.72 J ND 13.8 -- ND ND ug/L 01/27/14 -- -- 10 4.2 J 4.56 J 7.1 J -- 4.23 J 4.41 J 5.69 J 4.15 J Dry -- -- 5.18 J 20.5 -- ND ND 8.8 J 5.52 J 19.9 -- 5.85 J ND ug/L 07/15/14 -- -- 10 ND ND 6.6 J -- ND ND 7.73 J ND 10.9 -- -- 4 J 9.17 J -- ND ND ND ND 15.3 -- 4.49 J ND ug/L 01 /20/ 15 3.8 -- 10 4.33 J ND 7.31 J -- 5.21 J ND 5.14 J ND 20.1 -- -- 9.04 J 16.1 -- ND -- -- -- -- -- -- ND ug/L 07/23/15 3.8 -- 10 ND ND 8.4 J -- ND ND 4.27 J ND Dry -- -- ND 24.7 -- ND 6.84 J ND ND 18.1 -- 6.11 J ND ug/L 01/12/16 3.8 -- 10 ND ND 5.04 J -- ND ND ND 12.4 10.1 -- -- ND 4.87 J -- ND ND ND ND 14.7 -- ND ND ug/L 08/01/16 4.4 -- 10 ND ND 6.97 J ND ND ND ND ND 17.6 -- -- ND 14.3 -- 6.73 J ND ND ND 16.5 -- ND ND ug/L 01/18/17 4.4 -- 10 ND ND 6.71 J -- ND ND ND ND 20.7 -- -- ND 6.18 J -- ND ND ND ND 16.5 -- ND ND ug/L 07/24/17 4.4 -- 10 ND ND 7.12 J -- ND ND ND ND ND -- -- 13.1 6.92 J -- ND ND ND ND -- ND Dry ND ug/L 11 /01 / 17 4.4 -- 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND Dry ND ug/L 02/20/18 4.4 -- 10 ND ND 8.32 J -- ND ND ND ND 7.26 J -- -- ND 6.87 J -- ND ND ND ND -- ND Dry ND ug/L 08/08/18 4.4 10.0 -- ND ND 9.52 J -- ND ND 8.05 J ND 13.7 -- -- ND 4.99 J -- ND 8.49 J ND 9.83 J -- ND Dry ND ug/L 01/15/19 4.4 10.0 -- ND ND ND -- ND ND ND ND 15.1 -- -- ND 5.71 J -- ND ND ND 8.79 J -- ND Dry ND ug/L 08/14/19 4.4 10.0 -- ND 4.86 J 9.07 J -- 4.86 J 5.21 J 4.59 J 6.40 J 10.8 -- -- 7.83 J 7.14 J -- ND 5.12 J ND 4.66 J -- 7.24 J 6.19 J ND u /L 01/13/20 4.4 10.0 -- 4.93 J ND 7.66 J -- ND ND 4.83 J ND 16.3 -- -- 6.54 J 5.30 J -- ND 4.66 J 7.60 J 6.95 J -- 5.21 J Dry ND i GOLDER Page 15 of 19 March 2020 Project No. 19123756.100 Table 4 Summary of Detected Constituents in Groundwater for the Municipal Solid Waste Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 SWS Reporting Upgradient MSW Wells Sidegradient and Downgradient MSW Wells Detected Monitoring Constituents/Analytes Units Sample Date MDL MRL French Drain Blanks Limit MW-9 MW-16 MW-1 MW-6 MW-7 MW-11 MW-12 MW-13 MW-20 MW-21 MW-22 MW-23 MW-23A MW-24 MW-24R MW-25 MW-26 MW-27 MW-28 MW-28R Carbon disulfide ug/L 10/01/93 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- NC21- = 700 ug/L ug/L 07/01/94 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- No EPA MCL ug/L 10/01/94 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 01 /01 /95 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /95 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /95 -- -- -- ND -- ND 170 ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /96 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /96 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /97 -- -- -- ND -- 8.1 ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /97 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /98 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /98 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /99 -- -- -- ND ND ND 27 ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 09/01 /99 -- -- -- ND ND ND 23 ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /00 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 09/01 /00 -- -- -- ND ND ND 21 ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /01 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /01 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /02 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 11 /01 /02 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /03 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /03 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /04 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 11 /01 /04 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /05 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 11 /04/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- ug/L 12/ 12/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- uq/L 12/ 13/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- ug/L 12/22/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- ug/L 12/30/05 -- -- 20 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- ND ug/L 09/26/06 -- -- 100 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- ND ug/L 01/31/07 -- -- 100 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- ND uq/L 07/12/07 -- -- 100 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 01/17/08 -- -- 100 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 07/30/08 -- -- 100 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 01/21/09 -- -- 100 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 07/14/09 -- -- 100 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 01/07/10 -- -- 100 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 07/20/10 -- -- 100 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 01/31/11 -- -- 100 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 07/18/11 -- -- 100 ND ND ND ND ND ND ND ND ND ND ND ND ND -- ND -- -- -- -- -- ND ND ug/L 01/24/12 -- -- 100 ND ND ND ND ND ND ND ND ND ND ND ND ND -- ND -- -- -- -- -- ND ND ug/L 07/17/12 -- -- 100 ND ND ND ND ND ND ND ND ND ND ND ND ND -- ND -- -- -- -- -- ND ND ug/L 01/22/13 -- -- 100 ND ND ND -- ND ND ND ND Dry ND ND ND ND -- ND ND ND ND ND -- ND ND ug/L 07/15/13 -- -- 100 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 01/27/14 -- -- 100 ND ND ND -- ND ND ND ND Dry -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 07/15/14 -- -- 100 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 01 /20/ 15 1.5 -- 100 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND -- -- -- -- -- -- ND ug/L 07/23/15 1.5 -- 100 ND ND ND -- ND ND ND ND Dry -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 01/12/16 1.5 -- 100 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 08/01/16 1.5 -- 100 ND ND ND ND ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND uq/L 01/18/17 1.5 -- 100 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 07/24/17 1.5 -- 100 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 11 /01 / 17 1.5 -- 100 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND Dry ND ug/L 02/20/18 1.5 -- 100 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 08/08/18 1.5 5.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 01/15/19 1.5 5.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 08/14/19 1.5 5.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND ND ND u /L 01/13/20 1.5 5.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND Naphthalene ug/L 09/26/06 -- -- 10 ND ND -- ND ND -- -- ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- NC 2L=6 ug/L ug/L 01/18/17 0.11 -- 10 ND ND ND -- ND ND 0.94 J (ND) ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND No EPA MCL ug/L 07/24/17 0.11 -- 10 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND u /L 11 /01 / 17 0.11 -- 10 1 -- -- I -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND -- ND i GOLDER Page 16 of 19 March 2020 Project No. 19123756.100 Table 4 Summary of Detected Constituents in Groundwater for the Municipal Solid Waste Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring Constituents/Analytes Units Sample Date MDL MRL SWS Reporting Upgradient MSW Wells Sidegradient and Downgradient MSW Wells French Drain Blanks Limit MW-9 MW-16 MW-1 MW-6 MW-7 MW-11 MW-12 MW-13 MW-20 MW-21 MW-22 MW-23 MW-23A MW-24 MW-24R MW-25 MW-26 MW-27 MW-28 MW-28R Tetrach I oroethene ug/L 10/01 /93 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- NC 2L = 0.7 ug/L ug/L 07/01/94 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- EPA MCL = 5 ug/L ug/L 10/01/94 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 01 /01 /95 -- -- -- 7 -- ND 5 ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /95 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /95 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /96 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /96 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /97 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /97 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /98 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /98 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /99 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 09/01 /99 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /00 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 09/01 /00 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /01 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /01 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /02 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 11 /01 /02 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /03 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /03 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /04 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 11 /01 /04 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /05 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 11 /04/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- ug/L 12/ 12/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- ug/L 12/ 13/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- ug/L 12/22/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- ug/L 12/30/05 -- -- 5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- ND ug/L 09/26/06 -- -- 5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- 8.4 ug/L 01/31/07 -- -- 3 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- ND ug/L 07/12/07 -- -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 01/17/08 -- -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 07/30/08 -- -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 01/21/09 -- -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 07/14/09 -- -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 01/07/10 -- -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 07/20/10 -- -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 01/31/11 -- -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 07/18/11 -- -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND -- ND -- -- -- -- -- ND ND ug/L 01/24/12 -- -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND -- ND -- -- -- -- -- ND ND ug/L 07/17/12 -- -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND -- ND -- -- -- -- -- ND ND ug/L 01/22/13 -- -- 1 ND ND ND -- ND ND ND ND Dry ND ND ND ND -- ND ND ND ND 0.7 J -- ND ND ug/L 07/15/13 -- -- 1 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND 3.3 -- ND ND ug/L 01/27/14 -- -- 1 ND ND ND -- ND ND ND ND Dry -- -- ND ND -- ND ND ND ND 2.8 -- ND ND ug/L 07/15/14 -- -- 1 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND 4 -- ND ND ug/L 01/20/15 0.17 -- 1 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND -- -- -- -- -- -- ND ug/L 07/23/15 0.17 -- 1 ND ND ND -- ND ND ND ND Dry -- -- ND ND -- ND ND ND ND 2.2 -- ND ND ug/L 01/12/16 0.17 -- 1 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND 2.4 -- ND ND ug/L 08/01/16 0.17 -- 1 ND ND ND ND ND ND ND ND ND -- -- ND ND -- ND ND ND ND 2.8 -- ND ND ug/L 01/18/17 0.17 -- 1 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND 1.8 -- ND ND ug/L 07/24/17 0.17 -- 1 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 11 /01 / 17 0.17 -- 1 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND Dry ND ug/L 02/20/18 0.17 -- 1 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 08/08/18 0.17 1.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 01/15/19 0.17 1.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 08/14/19 0.17 1.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND ND ND u /L 01/13/20 0.17 1.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND i GOLDER Page 17 of 19 March 2020 Project No. 19123756.100 Table 4 Summary of Detected Constituents in Groundwater for the Municipal Solid Waste Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 SWS Reporting Upgradient MSW Wells Sidegradient and Downgradient MSW Wells Detected Monitoring Constituents/Analytes Units Sample Date MDL MRL French Drain Blanks Limit MW-9 MW-16 MW-1 MW-6 MW-7 MW-11 MW-12 MW-13 MW-20 MW-21 MW-22 MW-23 MW-23A MW-24 MW-24R MW-25 MW-26 MW-27 MW-28 MW-28R Toluene ug/L 10/01 /93 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- NC21- = 600 ug/L ug/L 07/01/94 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- EPA MCL = 1000 ug/L ug/L 10/01/94 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 01 /01 /95 -- -- -- ND -- ND 10 ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /95 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /95 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /96 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /96 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /97 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /97 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /98 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /98 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /99 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 09/01 /99 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /00 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 09/01 /00 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /01 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /01 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /02 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 11 /01 /02 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /03 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /03 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /04 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 11 /01 /04 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /05 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 11 /04/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND ND -- -- -- -- -- -- -- ND ug/L 12/ 12/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND ND -- -- -- -- -- -- -- ND ug/L 12/ 13/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND ND -- -- -- -- -- -- -- ND ug/L 12/22/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND ND -- -- -- -- -- -- -- ND ug/L 12/30/05 -- -- 5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- ND ug/L 09/26/06 -- -- 5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- ND ug/L 01/31/07 -- -- 5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- ND ug/L 07/12/07 -- -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND 0.48 J ug/L 01/17/08 -- -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 07/30/08 -- -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 01/21/09 -- -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 07/14/09 -- -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- ND ND ug/L 01/07/10 -- -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 07/20/10 -- -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 01/31/11 -- -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 07/18/11 -- -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND -- ND -- -- -- -- -- ND ND ug/L 01/24/12 -- -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND -- ND -- -- -- -- -- ND ND ug/L 07/17/12 -- -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND -- ND -- -- -- -- -- ND ND ug/L 01/22/13 -- -- 1 ND ND ND -- ND ND ND ND Dry ND ND ND ND -- ND ND ND ND ND -- ND ND ug/L 07/15/13 -- -- 1 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 01/27/14 -- -- 1 ND ND ND -- ND ND ND ND Dry -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 07/15/14 -- -- 1 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 01/20/15 0.14 -- 1 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND -- -- -- -- -- -- ND ug/L 07/23/15 0.14 -- 1 ND ND ND -- ND ND ND ND Dry -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 01/12/16 0.14 -- 1 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 08/01/16 0.14 -- 1 ND ND ND ND ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 01/18/17 0.14 -- 1 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 07/24/17 0.14 -- 1 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 11 /01 / 17 0.14 -- 1 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND Dry ND ug/L 02/20/18 0.14 -- 1 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 08/08/18 0.14 1.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 01/15/19 0.14 1.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 08/14/19 0.14 1.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND ND ND u /L 01/13/20 0.14 1.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND Trichlorofluoromethane ug/L 01/31/07 -- -- 5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- ND NC 2L = 2000 ug/L ug/L 07/12/07 -- -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND No EPA MCL ug/L 01/17/08 -- -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 07/30/08 -- -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- ND ND ug/L 01/21/09 -- -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 07/14/09 -- -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- ND ND ug/L 01/07/10 -- -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 07/20/10 -- -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 01/31/11 -- -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 07/18/11 -- -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- ND ND ug/L 01/24/12 -- -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND -- ND -- -- -- -- -- ND ND ug/L 07/17/12 -- -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND -- ND -- -- -- -- -- ND ND ug/L 01/22/13 -- -- 1 ND ND ND -- ND ND ND ND Dry ND ND ND ND -- ND ND ND ND 0.99 J -- ND ND ug/L 07/15/13 -- -- 1 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND 1.1 -- ND ND ug/L 01/27/14 -- -- 1 ND ND ND -- ND ND ND ND Dry -- -- ND ND -- ND ND ND ND 0.87 J -- ND ND ug/L 07/15/14 -- -- 1 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND 1.2 -- ND ND ug/L 01 /20/ 15 0.24 -- 1 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND -- -- -- -- -- -- ND ug/L 07/23/15 0.24 -- 1 ND ND ND -- ND ND ND ND Dry -- -- ND ND -- ND ND ND ND 0.99 J -- ND ND ug/L 01/12/16 0.24 -- 1 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND 1.1 -- ND ND ug/L 08/01/16 0.24 -- 1 ND ND ND ND ND ND ND ND ND -- -- ND ND -- ND ND ND ND 0.66 J -- ND ND ug/L 01/18/17 0.24 -- 1 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND 3.1 -- ND ND ug/L 07/24/17 0.24 -- 1 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 11 /01 / 17 0.24 -- 1 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND Dry ND ug/L 02/20/18 0.24 -- 1 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 08/08/18 0.24 1.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 01/15/19 0.24 1.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 08/14/19 0.24 1.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND ND ND u /L 01/13/20 0.24 1.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND i GOLDER Page 18 of 19 March 2020 Project No. 19123756.100 Table 4 Summary of Detected Constituents in Groundwater for the Municipal Solid Waste Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 SWS Reporting Upgradient MSW Wells Sidegradient and Downgradient MSW Wells Detected Monitoring Constituents/Analytes Units Sample Date MDL MRL French Drain Blanks Limit MW-9 MW-16 MW-1 MW-6 MW-7 MW-11 MW-12 MW-13 MW-20 MW-21 MW-22 MW-23 MW-23A MW-24 MW-24R MW-25 MW-26 MW-27 MW-28 MW-28R Xyl enes (total) ug/L 10/01 /93 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- NC 2L = 500 ug/L ug/L 07/01/94 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- EPA MCL = 10000 ug/L ug/L 10/01/94 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 01 /01 /95 -- -- -- 13 -- ND 32 ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /95 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /95 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /96 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /96 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /97 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /97 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /98 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /98 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /99 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 09/01 /99 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /00 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 09/01 /00 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /01 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /01 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /02 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 11 /01 /02 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /03 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /03 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /04 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 11 /01 /04 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /05 -- -- -- ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 11 /04/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- ug/L 12/ 12/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- ug/L 12/ 13/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- ug/L 12/22/05 -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- ug/L 12/30/05 -- -- 5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- ND ug/L 09/26/06 -- -- 5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- ND ug/L 01/31/07 -- -- 5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- ND ug/L 07/12/07 -- -- 4 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 01/17/08 -- -- 5 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 07/30/08 -- -- 5 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 01/21/09 -- -- 5 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 07/14/09 -- -- 5 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 01/07/10 -- -- 5 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 07/20/10 -- -- 5 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 01/31/11 -- -- 5 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 07/18/11 -- -- 5 ND ND ND ND ND ND ND ND ND ND ND ND ND -- ND -- -- -- -- -- ND ND ug/L 01/24/12 -- -- 5 ND ND ND ND ND ND ND ND ND ND ND ND ND -- ND -- -- -- -- -- ND ND ug/L 07/17/12 -- -- 5 ND ND ND ND ND ND ND ND ND ND ND ND ND -- ND -- -- -- -- -- ND ND ug/L 01/22/13 -- -- 5 ND ND ND -- ND ND ND ND Dry ND ND ND ND -- ND ND ND ND ND -- ND ND ug/L 07/15/13 -- -- 5 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 01/27/14 -- -- 5 ND ND ND -- ND ND ND ND Dry -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 07/15/14 -- -- 5 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 01/20/15 0.45 -- 5 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND -- -- -- -- -- -- ND ug/L 07/23/15 0.45 -- 5 ND ND ND -- ND ND ND ND Dry -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 01/12/16 0.45 -- 5 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 08/01/16 0.45 -- 5 ND ND ND ND ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 01/18/17 0.45 -- 5 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 07/24/17 0.45 -- 5 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 11 /01 / 17 0.45 -- 5 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND Dry ND ug/L 02/20/18 0.45 -- 5 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 08/08/18 0.45 3.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 01/15/19 0.45 3.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 08/14/19 0.45 3.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND ND ND ND ND ND -- ND ND ND u /L 01/13/20 0.45 3.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND Di-n-butylphthalate ug/L 01/18/17 1.5 -- 10 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND NC 2L = 700 ug/L, No EPA MCL ug/L 07/24/17 1.5 -- 10 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND 8.8 J ND -- ND Dry ND (Verification) ug/L 08/24/17 1.5 -- 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND -- -- -- Dry ND u / L 11 /01 / 17 1.5 -- 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND Dry ND Diethyl phthalate ug/L 01/18/17 2.1 -- 10 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- 2.6 J ND NC 2L = 6000 ug/L, No EPA MCL ug/L 07/24/17 2.1 -- 10 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND 2.6 J ND -- ND Dry ND (Verification) ug/L 08/24/17 2.1 -- 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND -- -- -- Dry ND u /L 11 /01 / 17 2.1 -- 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND Dry ND Bis(2-ethylhexyl)phthalate ug/L 01/18/17 1.7 -- 15 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND NC 2L = 3 ug/L, No EPA MCL ug/L 07/24/17 1.7 -- 15 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND 2.3 J ND -- ND Dry ND (Verification) ug/L 08/24/17 1.7 -- 15 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND -- -- Dry 16 u /L 11 /01 / 17 1.7 -- 15 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND Dry ND Hexachlorobutadiene (NC 2L = 0.004 ug/L, No EPA MCL) ug/L 01/18/17 0.22 -- 10 ND ND ND -- ND ND 0.46 J (ND) ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND (Verification) ug/L 07/24/17 0.22 -- 10 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND u / L 11 /01 / 17 0.22 -- 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND Dry ND Sulfide mg/L 01/18/17 0.01 -- 1 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND No NC 2L, No EPA MCL mg/L 07/24/17 0.01 -- 1 ND ND 0.022 J -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND (Verification) mg/L 08/24/17 0.01 -- 1 -- -- 0.025 J -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Dry ND m / L 11 /01 / 17 1 0.01 1 1 1-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND Dry ND Notes: ug/L = micrograms per liter mg/L = milligrams per liter S.U. = Standard Units NTU = Nephelometric Turbidity Units ND = Not detected at the stated reporting limit pS/cm= microsiemens per centimeter mV = millivolts -- = no data available or not established B = blank -qualified result J = Prior to the August 2018 event, J flags are estimated values below the SWS Reporting limit. Beginning with the August 2018 event, J flags are estimated values between MDL and MRL. Blanks = field, trip and method blanks Shaded = Concentrations above the current NC 2L or Solid Waste Section Groundwater Protection Standards have been shaded. MW-3, MW-4, MW-5, MW-10, MW-14 and MW-15 are abandoned monitoring wells and data are not included on this table. SWS Reporting Limit = NCPQL prior to 2007 and NCSWSL starting in 01/31/07 MDL = Laboratory method detection limit MRL = Laboratory method reporting limit 1) Historical data prior to September 2006 provided by Rowan County. 2) Well MW-24 was replaced by MW-24R prior to the July 2011 sampling event. 3) MW-25, MW-26, MW-27, MW-27A, and MW-28 were installed prior to the January 2013 sampling event to monitor the Phase IV expansion. 4) MW-9 and MW-16 are designated as the new upgradient compliance monitoring wells per the approved revised 2013 groundwater monitoring plan. 5) Results in parentheses represent reanalyzed data. 6) MW-28 was replaced by MW-28R after the January 2017 sampling event. 7) The following dilutions were noted for the January 2020 event: Antimony and Thallium (2x) i GOLDER Page 19 of 19 March 2020 Project No. 19123756.100 Table 5 Summary of Groundwater Field Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring SWS Upgradient MSW Wells Sidegradient and Downgradient MSW Wells Units Sample Date Reporting French Drain MW-9 MW-16 MW-1 MW-6 MW-7 MW-11 MW-12 MW-13 MW-20 MW-21 MW-22 MW-23 MW-23A MW-24 MW-24R MW-25 MW-26 MW-27 MW-28 MW-28R Constituents/Anal tes Y Limit pH S.U. 11/04/05 -- -- -- -- -- -- -- -- -- 5.51 6.00 5.13 5.40 9.61 5.46 -- -- -- -- -- -- -- (field) S.U. 12/12/05 -- -- -- -- -- -- -- -- -- 5.62 5.21 5.34 5.45 9.56 5.32 -- -- -- -- -- -- -- S.U. 12/13/05 -- -- -- -- -- -- -- -- -- 5.65 5.42 5.60 5.45 9.56 5.55 -- -- -- -- -- -- -- S.U. 12/22/05 -- -- -- -- -- -- -- -- -- 5.59 5.50 5.50 5.65 9.42 5.42 -- -- -- -- -- -- -- S.U. 12/30/05 -- 5.85 6.85 5.44 6.67 5.94 6.38 6.05 5.96 5.45 5.96 5.24 5.40 9.52 5.65 -- -- -- -- -- -- -- S.U. 09/26/06 -- 5.73 6.62 4.50 6.74 5.83 6.30 5.64 5.57 4.86 6.10 5.97 5.34 6.69 6.53 -- -- -- -- -- -- S. U. 01 /31 /07 -- 5.82 6.07 5.65 6.26 6.44 6.35 6.15 6.06 5.13 6.05 6.34 7.06 6.15 6.91 -- -- -- -- -- -- -- S.U. 07/12/07 -- 6.15 6.27 6.54 6.26 6.24 5.78 6.03 5.56 5.30 5.58 6.05 5.46 5.63 Dry -- -- -- -- -- -- 6.73 S.U. 01/17/08 -- 6.11 6.04 5.71 6.68 6.68 7.29 6.51 6.40 5.81 6.05 6.20 6.17 6.63 Dry -- -- -- -- -- -- 6.20 S.U. 07/30/08 -- 5.88 6.15 5.32 7.24 5.94 7.07 6.51 6.13 5.62 5.88 5.73 6.44 6.45 Dry -- -- -- -- -- -- 6.15 S.U. 01/21/09 -- 5.66 6.85 4.91 6.18 5.31 5.62 5.95 5.52 5.00 5.25 5.34 6.81 6.86 Dry -- -- -- -- -- -- 6.41 S.U. 07/14/09 -- 6.50 6.55 5.22 6.42 6.46 5.68 4.96 5.49 4.98 5.70 4.81 5.48 6.82 Dry -- -- -- -- -- -- 5.59 S.U. 01/07/10 -- 6.07 6.33 5.46 7.11 6.40 6.13 6.33 6.01 5.20 6.35 6.04 6.05 6.16 Dry -- -- -- -- -- -- 6.68 S.U. 07/20/10 -- 6.50 6.78 5.34 7.61 5.78 6.91 5.74 5.74 5.05 6.36 5.97 5.59 6.86 Dry -- -- -- -- -- -- 6.82 S.U. 01/31/11 -- 5.44 5.69 4.59 6.98 5.35 5.34 5.25 5.37 4.33 6.61 4.86 5.36 6.57 Dry -- -- -- -- -- -- 6.16 S.U. 07/18/11 -- 5.27 5.72 4.52 6.60 4.86 5.37 5.12 5.13 3.83 6.61 4.33 5.26 6.38 -- 5.10 -- -- -- -- -- 6.18 S.U. 01/24/12 -- 5.68 5.94 4.89 6.87 5.58 5.47 5.52 5.53 4.95 6.75 5.25 5.58 6.53 -- 5.77 -- -- -- -- -- 6.84 S.U. 07/17/12 -- 5.54 6.08 4.73 6.43 5.25 5.22 5.18 5.23 4.74 6.43 5.10 5.59 6.59 -- 5.19 -- -- -- -- -- 5.89 S.U. 01/22/13 -- 5.54 5.91 5.04 -- 5.25 5.48 5.51 5.43 Dry 5.80 5.32 5.56 6.66 -- 5.11 6.16 5.54 5.47 4.47 -- 6.55 S.U. 07/15/13 -- 4.76 5.48 4.01 -- 4.35 4.22 4.67 4.55 3.17 -- -- 3.65 5.19 -- 4.45 4.65 4.08 4.86 4.11 -- 4.94 S.U. 01/27/14 -- 5.67 6.05 5.12 -- 5.79 5.54 5.55 5.51 Dry -- -- 5.66 6.58 -- 5.66 6.11 5.31 5.88 4.38 -- 6.56 S.U. 07/15/14 -- 5.58 6.34 5.06 -- 5.40 5.57 5.60 5.36 4.95 -- -- 5.62 6.65 -- 5.70 5.78 5.09 5.39 4.04 -- 6.66 S.U. 01/20/15 -- 5.44 5.58 4.60 -- 6.50 5.70 6.02 5.98 4.46 -- -- 6.20 7.13 -- 4.76 -- -- -- -- -- -- (Verification) S.U. 03/20/15 -- -- -- -- -- -- -- -- -- 4.74 -- -- -- -- -- -- -- -- -- -- -- -- S.U. 07/23/15 -- 4.72 5.17 5.89 -- 5.25 5.04 5.30 5.19 Dry -- -- 4.26 5.85 -- 4.33 5.35 4.69 5.24 3.30 -- 6.20 S.U. 01/12/16 -- 5.29 5.62 5.01 -- 5.43 5.53 5.55 5.37 5.40 -- -- 5.50 6.52 -- 5.35 5.81 5.20 5.53 4.09 -- 5.92 S.U. 08/01/16 -- 5.29 5.67 5.27 5.04 5.69 5.44 5.07 5.11 -- -- -- 5.05 5.89 -- 4.75 5.66 4.45 4.78 3.85 -- 5.77 S.U. 01/17/17 -- 5.33 5.86 6.24 -- 5.07 5.20 5.02 5.08 4.66 -- -- 5.02 5.86 -- 5.08 5.54 4.87 5.00 3.88 -- Dry S.U. 07/24/17 -- 5.30 5.77 5.08 -- 5.43 5.38 5.30 5.31 6.75 -- -- 5.08 5.86 -- 5.34 5.45 4.83 5.00 -- 5.20 Dry (Verification) S.U. 08/25/17 -- -- -- 4.94 -- -- -- -- -- 4.75 -- -- -- -- -- -- -- 4.76 -- -- -- S. U. 11/01/17 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 5.23 -- S.U. 02/20/18 -- 5.87 6.08 5.17 -- 5.55 5.46 5.37 5.35 Dry -- -- 5.58 6.38 -- 5.43 6.12 5.51 5.78 -- 4.96 Dry S.U. 08/08/18 -- 5.57 6.01 5.21 -- 5.19 5.48 5.41 5.33 4.82 -- -- 5.40 6.59 -- 5.26 5.94 5.40 5.46 -- 4.89 Dry S.U. 01/15/19 -- 5.58 6.11 5.58 -- 5.80 5.79 5.46 5.38 4.58 -- -- 5.56 6.42 -- 5.54 6.06 5.42 5.79 -- 5.05 Dry S.U. 08/13/19 -- 5.63 6.03 5.15 -- 5.54 5.70 5.50 5.32 4.80 -- -- 5.37 6.24 -- 5.55 6.06 5.08 5.51 -- 4.91 6.58 S.U. 01/13/20 -- 5.42 6.00 4.97 -- 5.29 5.55 5.28 4.99 3.73 -- -- 5.31 6.17 -- 5.52 5.87 5.09 5.57 -- 4.63 Dry Specific Conductivity PS/cm 11/04/05 -- -- -- -- -- -- -- -- -- 79 118 54 136 183 108 -- -- -- -- -- -- (field) PS/cm 12/12/05 -- -- -- -- -- -- -- -- -- 85 110 100 140 165 110 -- -- -- -- -- -- -- PS/cm 12/13/05 -- -- -- -- -- -- -- -- -- 90 125 95 130 145 110 -- -- -- -- -- -- -- PS/cm 12/22/05 -- -- -- -- -- -- -- -- -- 75 130 110 140 140 100 -- -- -- -- -- -- -- PS/cm 12/30/05 -- 245 310 145 115 95 105 165 95 80 115 65 140 175 105 -- -- -- -- -- -- -- PS/cm 09/26/06 -- 185 188 90 94 70 82 119 103 44 81 36 87 156 58 -- -- -- -- -- -- -- PS/cm 01 /31 /07 -- 247 225 101 106 76 109 145 118 41 124 30 96 181 91 -- -- -- -- -- -- -- PS/cm 07/12/07 -- 183 177 80 88 64 76 119 99 38 91 25 82 154 Dry -- -- -- -- -- -- 122 PS/cm 01/17/08 -- 215 218 118 121 96 115 151 137 48 81 43 106 213 Dry -- -- -- -- -- -- 160 PS/cm 07/30/08 -- 211 212 111 130 93 118 154 132 42 91 46 121 179 Dry -- -- -- -- -- -- 165 PS/cm 01/21/09 -- 195 222 83 107 166 174 103 86 42 66 43 87 140 Dry -- -- -- -- -- -- 140 PS/cm 07/14/09 -- 203 210 81 103 79 91 132 113 45 81 36 108 168 Dry -- -- -- -- -- -- 144 PS/cm 01/07/10 -- 197 205 78 96 51 109 137 99 43 77 34 99 154 Dry -- -- -- -- -- -- 139 PS/cm 07/20/10 -- 214 191 82 103 68 91 135 110 47 98 31 119 143 Dry -- -- -- -- -- -- 143 PS/cm 01/31/11 -- 190 185 83 95 73 104 135 106 46 82 31 131 152 Dry -- -- -- -- -- -- 135 PS/cm 07/18/11 -- 194 200 83 95 74 98 132 108 50 86 32 134 166 -- 86 -- -- -- -- -- 150 PS/cm 01/24/12 -- 191 200 76 98 76 108 128 99 42 82 43 126 163 -- 86 -- -- -- -- -- 145 PS/cm 07/17/12 -- 157 212 74 80 63 73 91 84 40 74 43 109 156 -- 70 -- -- -- -- -- 117 PS/cm 01/22/13 -- 199 168 106 -- 63 72 88 80 Dry 49 44 103 118 -- 66 69 69 51 74 -- 146 PS/cm 07/15/13 -- 182 290 65 -- 75 88 109 100 39 -- -- 125 142 -- 78 88 71 78 116 -- 142 PS/cm 01/27/14 -- 209 285 84 -- 95 125 139 113 Dry -- -- 148 170 -- 98 114 94 100 146 -- 163 PS/cm 07/15/14 -- 209 293 114 -- 86 104 121 127 67 -- -- 153 158 -- 92 97 86 77 139 -- 157 PS/cm 01/20/15 -- 169 196 88 -- 81 85 109 101 70 -- -- 139 128 -- 77 -- -- -- -- -- -- (Verification) PS/cm 03/20/15 -- -- -- -- -- -- -- -- -- 51 -- -- -- -- -- -- -- -- -- -- -- -- pS/cm 07/23/15 -- 163 197 95 -- 66 82 111 94 Dry -- -- 128 125 -- 61 75 67 65 111 -- 118 PS/cm 01/12/16 -- 171 221 102 -- 71 96 122 92 42 -- -- 130 127 -- 66 89 75 78 120 -- 155 PS/cm 08/01/16 -- 182 248 108 106 77 95 127 110 -- -- -- 135 133 -- 67 90 79 81 131 -- 131 PS/cm 01/17/17 -- 162 205 112 -- 69 83 117 99 56 -- -- 131 112 -- 57 86 72 77 111 -- Dry PS/cm 07/24/17 -- 180 238 94 -- 71 81 108 99 60 -- -- 148 118 -- 58 98 82 102 -- 82 Dry (Verification) PS/cm 08/25/17 -- -- -- 94 -- -- -- -- -- 54 -- -- -- -- -- -- -- 79 -- PS/cm 11/01/17 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 55 -- PS/cm 02/20/18 -- 178.0 246.0 74.0 -- 84.2 94.2 132.6 108.3 Dry -- -- 167.6 124.8 -- 65.4 111.0 80.0 99.0 -- 59.0 Dry PS/cm 08/08/18 -- 181.7 287.1 105.2 -- 86.7 88.9 129.1 117.4 80.1 -- -- 171.5 121.7 -- 67.9 110.5 89.7 103.4 -- 62.0 Dry PS/cm 01/15/19 -- 170.9 240.5 119.8 -- 79.8 85.3 131.2 78.3 49.5 -- -- 171.6 116.0 -- 61.7 102.0 76.6 99.5 -- 57.0 Dry PS/cm 08/13/19 -- 194.4 209.8 98.1 -- 73.3 76.3 116.6 102.4 35.6 -- -- 163.4 116.5 -- 58.5 90.1 71.8 103.2 -- 53.2 162.1 PS/cm 01/13/20 -- 196.2 213.9 70.6 -- 58.2 90.5 139..5 75.0 40.7 -- -- 125.4 79.0 -- 72.1 71.5 50.9 105.2 -- 37.2 Dr GOLDER Page 1 of 3 March 2020 Project No. 19123756.100 Table 5 Summary of Groundwater Field Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring SWS Upgradient MSW Wells Sidegradient and Downgradient MSW Wells Units Sample Date Reporting French Drain MW-9 MW-16 MW-1 MW-6 MW-7 MW-11 MW-12 MW-13 MW-20 MW-21 MW-22 MW-23 MW-23A MW-24 MW-24R MW-25 MW-26 MW-27 MW-28 MW-28R Constituents/Anal tes Y Limit Temperature °C 11/04/05 -- -- -- -- -- -- -- -- -- 18.30 18.10 18.20 17.50 17.30 17.30 -- -- -- -- -- -- -- (field) °C 12/12/05 -- -- -- -- -- -- -- -- -- 18.40 18.00 18.00 18.20 17.80 18.20 -- -- -- -- -- -- -- °C 12/13/05 -- -- -- -- -- -- -- -- -- 18.40 18.20 18.60 18.40 17.80 18.20 -- -- -- -- -- -- -- °C 12/22/05 -- -- -- -- -- -- -- -- -- 18.40 18.60 18.20 18.40 17.60 18.40 -- -- -- -- -- -- -- °C 12/30/05 -- 18.40 17.20 18.20 18.00 18.20 18.20 18.20 18.20 18.20 18.20 18.40 18.40 17.80 18.20 -- -- -- -- -- -- -- °C 09/26/06 -- 17.40 18.50 17.00 18.90 19.40 19.20 19.60 19.00 17.70 17.40 18.00 17.90 18.60 18.40 -- -- -- -- -- -- -- ° C 01 /31 /07 -- 11.20 12.40 10.80 13.80 15.60 10.50 9.90 11.30 11.10 11.90 13.40 14.80 13.00 11.90 -- -- -- -- -- -- -- °C 07/12/07 -- 18.44 18.85 17.92 18.75 19.57 18.05 19.70 17.64 18.48 18.87 18.40 19.72 19.89 Dry -- -- -- -- -- -- 18.99 °C 01/17/08 -- 12.81 11.06 11.77 12.39 14.68 11.84 10.47 11.62 12.09 11.26 12.97 12.56 14.17 Dry -- -- -- -- -- -- 15.39 °C 07/30/08 -- 18.82 18.61 18.48 20.09 19.37 19.43 20.50 18.58 19.86 17.39 18.25 19.98 20.15 Dry -- -- -- -- -- -- 20.71 °C 01/21/09 -- 13.24 11.98 13.26 15.56 13.96 13.09 11.73 13.55 14.42 14.03 14.86 15.92 17.69 Dry -- -- -- -- -- -- 14.51 °C 07/14/09 -- 17.34 17.39 16.38 17.25 17.74 17.02 17.63 15.23 17.81 17.20 17.02 17.23 18.45 Dry -- -- -- -- -- -- 19.37 °C 01/07/10 -- 14.02 14.11 14.16 15.20 14.26 11.47 11.02 14.05 14.45 14.20 13.41 13.35 14.69 Dry -- -- -- -- -- -- 15.56 °C 07/20/10 -- 19.97 20.93 17.51 18.95 19.71 19.40 20.01 17.97 19.40 18.71 20.30 20.10 19.01 Dry -- -- -- -- -- -- 21.47 °C 01/31/11 -- 13.09 11.89 12.99 13.74 14.63 11.81 10.88 12.55 12.87 13.17 13.17 12.78 13.04 Dry -- -- -- -- -- -- 14.99 °C 07/18/11 -- 20.02 20.96 18.45 20.41 17.66 18.27 16.96 17.70 19.93 18.97 19.47 19.31 19.57 -- 20.80 -- -- -- -- -- 20.14 °C 01/24/12 -- 13.60 13.53 14.91 15.19 16.13 13.03 13.05 14.77 14.16 16.03 17.09 16.66 16.37 -- 13.12 -- -- -- -- -- 17.57 °C 07/17/12 -- 17.74 22.12 19.32 20.10 20.69 16.76 17.20 17.49 19.65 20.53 21.02 19.60 22.85 -- 19.97 -- -- -- -- -- 20.18 °C 01/22/13 -- 14.73 12.77 9.16 -- 16.45 11.47 11.65 13.08 Dry 17.62 19.10 15.77 13.57 -- 16.42 18.02 18.53 14.16 17.66 -- 16.90 °C 07/15/13 -- 19.08 20.03 18.69 -- 19.18 17.76 17.34 16.03 17.94 -- -- 20.42 19.29 -- 20.29 19.65 19.18 17.79 20.18 -- 19.75 °C 01/27/14 -- 16.0 14.8 15.9 -- 14.0 13.2 13.3 14.5 Dry -- -- 16.7 16.6 -- 16.5 14.3 13.9 10.3 13.5 -- 16.3 °C 07/15/14 -- 18.5 26.8 17.0 -- 17.6 14.8 15.2 14.3 20.1 -- -- 18.7 19.1 -- 17.1 18.6 18.3 16.7 17.7 -- 20.5 °C 01/20/15 -- 15.1 14.9 15.3 -- 14.9 12.8 13.1 13.9 16.5 -- -- 15.0 14.7 -- 15.9 -- -- -- -- -- -- (Verification) °C 03/20/15 -- -- -- -- -- -- -- -- -- 13.6 -- -- -- -- -- -- -- -- -- -- -- -- °C 07/23/15 -- 18.7 19.2 20.9 -- 17.6 17.1 18.0 16.2 Dry -- -- 19.5 22.6 -- 19.8 18.8 18.5 17.4 19.0 -- 19.7 °C 01/12/16 -- 15.2 13.2 14.4 -- 14.8 13.4 14.2 14.9 12.2 -- -- 14.6 14.6 -- 13.4 13.7 14.1 12.3 15.7 -- 9.1 °C 08/01/16 -- 20.5 21.0 17.6 19.0 18.9 18.2 18.4 17.3 -- -- -- 20.1 20.1 -- 19.2 19.5 19.5 18.4 19.5 -- 21.7 °C 01/17/17 -- 15.7 15.1 17.2 -- 16.5 15.3 14.8 15.6 14.8 -- -- 16.7 16.6 -- 17.3 15.6 16.8 14.5 17.3 -- Dry °C 07/24/17 -- 18.8 22.8 20.5 -- 19.0 18.6 17.0 16.6 19.3 -- -- 18.5 20.6 -- 19.1 18.5 19.8 17.7 -- 19.0 Dry (Verification) °C 08/25/17 -- -- -- 19.0 -- -- -- -- -- 21.6 -- -- -- -- -- -- -- 18.5 -- -- -- -- ° C 11 /01 / 17 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 16.9 -- °C 02/20/18 -- 15.6 15.3 15.7 -- 16.1 13.8 13.7 14.7 Dry -- -- 17.7 19.0 -- 16.7 17.0 17.3 13.8 -- 17.4 Dry °C 08/08/18 -- 23.0 22.1 20.8 -- 17.2 18.2 18.5 15.9 19.6 -- -- 19.0 21.9 -- 18.2 18.1 18.6 17.9 -- 18.6 Dry °C 01/15/19 -- 14.2 13.5 13.7 -- 15.8 13.7 13.3 14.2 14.2 -- -- 16.5 16.4 -- 15.5 14.8 15.5 12.9 -- 17.1 Dry °C 08/13/19 -- 22.5 22.6 22.7 -- 17.8 20.1 17.2 17.4 19.7 -- -- 20.6 22.0 -- 19.7 18.5 19.0 18.4 -- 20.8 33.8 °C 01/13/20 -- 16.2 15.0 15.9 -- 16.0 15.1 14.4 15.2 15.7 -- -- 17.0 16.6 -- 16.0 16.0 16.4 14.5 -- 17.2 Dr Turbidity NTU 12/30/05 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- (field) NTU 09/26/06 -- 81.1 42.3 69.7 52.1 162 75.2 39.8 85.7 74.2 579 82.5 74.5 63.1 708 -- -- -- -- -- -- -- NTU 01 /31 /07 -- 13.1 134 73 47.1 207 15.4 34.2 60.5 92.6 > 1000 139 73 48 313 -- -- -- -- -- -- -- NTU 07/12/07 -- 0 0 42.9 0 0 0 0 0 0 889 0 0 0 Dry -- -- -- -- -- -- 0.00 NTU 01/17/08 -- 15.1 4.60 8.64 1.27 2.38 37.4 9.00 141 33.4 71.4 8.73 58.5 20.1 Dry -- -- -- -- -- -- 1.59 NTU 07/30/08 -- 27.2 4.62 8.58 35.0 41.8 24.0 13.4 31.3 14.2 430 15.7 104 2.88 Dry -- -- -- -- -- -- 3.64 NTU 01 /21 /09 -- 7.89 21 9.24 3.9 7.07 31.8 14.8 22.1 8.76 34.2 22.8 54.4 3.8 Dry -- -- -- -- -- -- 26.4 NTU 07/14/09 -- 11.9 6.86 24.0 3.45 6.42 21.0 9.39 12.6 22.6 62.3 17.5 22.3 2.91 Dry -- -- -- -- -- -- 1.26 NTU 01/07/10 -- 8.33 18.9 3.40 4.14 7.43 0.21 14.5 22.7 14.6 32.7 110 59.2 27.2 Dry -- -- -- -- -- -- 2.66 NTU 07/20/10 -- 14.6 5.96 25.1 17.7 12.6 8.00 21.6 201 13.7 145 12.7 23.0 5.16 Dry -- -- -- -- -- -- 9.82 NTU 01 /31 /11 -- 0.93 0.58 3.82 1.09 4.12 45.7 58.1 10.7 9.65 18.3 8.64 7.52 91.3 Dry -- -- -- -- -- -- 0.45 NTU 07/18/11 -- 0.62 0.40 9.83 2.98 4.44 4.61 8.78 2.36 10.4 14.7 1.78 1.48 30.8 -- 9.12 -- -- -- -- -- 1.72 NTU 01 /24/12 -- 1.40 1.04 1.13 1.45 4.61 6.67 67.1 8.52 83.8 37.3 3.04 1.47 123 -- 24.7 -- -- -- -- -- 5.00 NTU 07/17/12 -- 5.68 3.49 7.17 4.40 13.4 6.25 48.1 8.65 77.5 36.9 5.37 6.75 215 -- 64.4 -- -- -- -- -- 10.0 NTU 01/22/13 -- 82.80 2.33 35.6 -- 2.13 19.6 47.3 7.51 Dry 6.35 6.18 12.5 226 -- 12.7 152.0 77.0 71.7 22.8 -- 5.31 NTU 07/15/13 -- 1.33 1.36 3.10 -- 8.19 3.06 4.65 4.51 44.7 -- -- 59.3 130 -- 2.45 5.19 34.9 8.65 15.5 -- 8.55 NTU 01/27/14 -- 2.52 0.52 4.48 -- 3.23 1.34 1.15 9.53 Dry -- -- 4.82 93.1 -- 1.69 1.98 13.8 16.4 22.1 -- 2.98 NTU 07/15/14 -- 1.42 1.28 7.60 -- 1.36 2.92 83.7 5.26 4.26 -- -- 4.60 64.7 -- 2.80 1.17 4.00 5.11 20.5 -- 5.59 NTU 01 /20/15 -- 2.29 0.71 5.13 -- 1.25 0.46 4.7 5.10 26.8 -- -- 6.04 81.3 -- 4.42 -- -- -- -- -- -- (Verification) NTU 03/20/15 -- -- -- -- -- -- -- -- -- 15.7 -- -- -- -- -- -- -- -- -- -- -- -- NTU 07/23/15 -- 2.70 0.91 1.93 -- 1.76 7.59 10.2 5.64 Dry -- -- 2.63 177 -- 1.22 6.98 5.12 12.3 12.2 -- 4.75 NTU 01/12/16 -- 1.00 0.85 4.44 -- 0.57 29.90 17.6 7.45 10.3 -- -- 0.97 118 -- 1.07 8.77 3.11 13.1 5.5 -- 9.39 NTU 08/01/16 -- 0.42 0.95 3.76 2.89 1.32 22.7 5.30 4.75 -- -- -- 2.16 83.3 -- 1.41 0.81 11.9 13.1 13.2 -- 4.03 NTU 01/17/17 -- 0.91 0.42 6.62 -- 1.28 25.3 26.6 5.21 33.2 -- -- 3.55 37.9 -- 1.38 3.47 8.9 48.0 11.8 -- Dry NTU 07/24/17 -- 0.58 0.74 1.64 -- 2.74 19.2 14.4 4.77 4.69 -- -- 3.96 19.6 -- 1.53 2.81 1.88 9.87 -- 9.14 Dry (Verification) NTU 08/25/17 -- -- -- 0.80 -- -- -- -- -- 34.8 -- -- -- -- -- -- -- 2.01 -- -- -- NTU 11 /01 /17 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 8.89 -- NTU 02/20/18 -- 1.50 1.22 1.72 -- 0.57 2.06 2.81 3.48 Dry -- -- 0.56 27.6 -- 0.63 8.01 5.75 14.8 -- 2.51 Dry NTU 08/08/18 -- 1.53 1.61 7.64 -- 1.31 9.67 20.2 7.67 2.04 -- -- 1.65 9.66 -- 0.89 6.70 3.59 120 -- 6.20 Dry NTU 01/15/19 -- 0.41 1.42 9.99 2.01 5.68 9.59 7.64 8.83 -- -- 1.65 9.92 -- 1.27 1.66 2.78 117 -- 3.69 Dry NTU 08/13/19 -- 1.33 0.71 1.79 -- 0.87 8.95 0.88 5.76 9.54 -- -- 5.37 13.3 -- 4.37 1.04 3.71 25.0 -- 1.94 6.01 NTU 01/13/20 -- 0.75 0.48 4.24 -- 1.52 19.3 0.63 9.52 6.80 -- -- 1.50 15.9 -- 2.61 1.26 3.88 170 -- 7.19 Dr GOLDER Page 2 of 3 March 2020 Project No. 19123756.100 Table 5 Summary of Groundwater Field Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring Units Sample Date SWS Reporting Upgradient MSW Wells Sidegradient and Downgradient MSW Wells French Drain Constituents/Anal tes Y Limit MW-9 MW-16 MW-1 MW-6 MW-7 MW-11 MW-12 MW-13 MW-20 MW-21 MW-22 MW-23 MW-23A MW-24 MW-24R MW-25 MW-26 MW-27 MW-28 MW-28R Oxygen Reduction Potential mV 9/26/06 -- 202 180 219 136 202 139 19 200 218 176 198 225 129 174 -- -- -- -- -- -- -- (field) mV 1/31/07 -- 242 259 263 215 235 248 271 259 -- 226 243 193 225 241 -- -- -- -- -- -- -- mV 01 /31 /11 -- 212.9 200.4 272.8 258.5 245.4 259.9 269.5 261.7 292.1 263.4 239.8 200.7 158.9 Dry -- -- -- -- -- -- -- mV 07/18/11 -- 144.6 140.5 110 84.5 153.8 157.8 143.4 146.7 79.8 88.3 101.9 139.2 35.0 -- 143.5 -- -- -- -- -- 140.0 mV 01/24/12 -- -68.0 -86.9 -78.7 -127.3 -76.1 -187.2 -179.9 -138.8 -65.3 -69.2 -63.0 -102.6 -133.3 -- -180.4 -- -- -- -- -- -69.4 mV 07/17/12 -- 44.0 29.7 73.5 30.4 110.8 53.3 50.7 50.3 91.6 -9.1 168.5 35.8 -12.3 -- 56.6 -- -- -- -- -- 71.1 mV 01/22/13 -- -- -15.6 -- -- 188.6 -24.2 -34.3 -32.1 Dry 101.7 109.1 -30.2 -39.7 -- 198.7 119.1 139.8 186.7 174.4 -- -- mV 07/15/13 -- 216.8 138.3 277.4 -- 178.0 197.3 166.2 172.5 -- -- -- 205.5 138.8 -- 183.7 173.4 232.6 153.4 241.8 -- -- mV 01/27/14 -- 179.4 173.7 185.3 -- 194.9 217.2 220.4 230.2 Dry -- -- 193.2 136.7 -- 193.2 199.3 287.0 202.0 352.1 -- 117.9 mV 07/15/14 -- 251.0 165.6 115.1 -- 261.2 270.5 262.6 293.6 330.3 -- -- 253.3 159.7 -- 210.9 190.3 295.6 250.1 441.8 -- 190.8 mV 01/20/15 -- 218.8 207.2 273.4 -- 256.3 290.6 259.5 282.3 327.2 -- -- 255.7 161.3 -- 303.1 -- -- -- -- -- -- (Verification) mV 03/20/15 -- -- -- -- -- -- -- -- -- 200.2 -- -- -- -- -- -- -- -- -- -- -- -- mV 07/23/15 -- 232.9 245.4 -- -- 290.0 289.8 235.9 271.5 Dry -- -- 281.7 160.2 -- 263.1 221.7 324.0 286.5 445.4 -- 223.1 mV 01/12/16 -- 336.4 327.3 264.6 -- 384.5 374.5 358.4 388.4 -- -- -- 383.2 343.3 -- 372.1 329.4 389.7 392.1 438.1 -- 96.1 mV 08/01/16 -- 242.9 256.6 -- 173.6 281.0 253.8 286.2 296.4 -- -- -- 562.3 268.9 -- 267.4 150.2 278.6 439.4 -- -- mV 01/17/17 -- 279.1 280.2 -- -- 314.6 333.7 316.8 240.8 -- -- -- 254.3 215.0 -- 266.0 227.3 292.5 332.7 435.4 -- Dry mV 07/24/17 -- 245.9 220.0 126.2 -- 179.0 178.0 208.4 192.9 -- -- -- 272.1 196.0 -- 191.7 213.0 289.4 240.1 -- 236.9 Dry (Verification) mV 08/25/17 -- -- -- 113.7 -- -- -- -- -- -- -- -- -- -- -- -- -- 305.4 -- -- -- -- mV 11 /01 /17 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 317.3 -- mV 02/20/18 -- 194.5 196.5 258.3 -- 425.5 445.9 450.9 457.5 Dry -- -- 289.3 407.4 -- 448.9 201.5 231.5 214.4 -- 466.8 Dry mV 08/08/18 -- 186.8 192.6 181.9 -- 232.7 242.7 246.0 287.0 -- -- -- 220.9 197.3 -- 237.8 226.2 258.2 249.4 -- 261.7 Dry mV 01/15/19 -- 255.0 141.9 208.0 -- 124.3 137.6 305.5 220.3 334.8 -- -- 247.7 194.2 -- 265.1 278.8 264.3 90.2 -- 312.5 Dry mV 08/13/19 -- 358.3 287.5 368.7 -- 260.4 299.1 286.3 373.0 326.5 -- -- 214.9 390.4 -- 271.4 215.2 294.3 386.9 -- 335.7 267.7 mV 01/13/20 -- 282.1 246.0 260.1 -- 189.3 354.4 357.2 358.5 346.8 -- -- 310.2 184.7 -- 297.4 191.3 291.1 321.3 -- 335.2 Dr Dissolved Oxygen (field) mg/L 01/31/11 -- 6.21 8.43 1.05 8.71 7.30 7.26 3.46 6.19 8.78 8.84 8.60 6.46 3.18 Dry -- -- -- -- -- -- -- mg/L 07/18/11 -- 3.42 4.14 0.71 3.62 8.43 4.54 1.77 3.78 8.68 9.40 8.95 6.76 0.94 -- 3.84 -- -- -- -- -- 4.90 mg/L 01/24/12 -- 8.05 9.18 2.14 8.32 9.02 3.55 2.84 7.09 12.93 10.65 9.66 8.19 2.81 -- 6.81 -- -- -- -- -- 12.23 mg/L 07/17/12 -- 6.59 6.77 2.03 8.19 7.86 9.37 8.36 8.78 7.90 7.86 8.43 7.65 5.21 -- 7.27 -- -- -- -- -- 9.36 mg/L 01/22/13 -- -- 6.35 -- -- 6.92 6.25 2.42 5.76 Dry 8.48 7.52 6.36 3.95 -- 6.65 7.51 8.68 7.05 7.85 -- -- mg/L 07/15/13 -- 5.39 6.54 2.99 -- 6.99 7.56 5.87 6.67 -- -- -- 6.92 4.92 -- 6.42 7.97 8.39 6.11 7.29 -- -- mg/L 01/27/14 -- 4.79 5.59 2.11 -- 6.77 5.70 2.08 5.03 Dry -- -- 5.48 3.91 -- 6.03 7.15 8.24 6.43 6.90 -- 7.37 mg/L 07/15/14 -- 5.24 5.14 0.30 -- 6.87 6.78 3.09 4.07 5.48 -- -- 3.89 3.89 -- 5.35 7.38 8.08 6.04 7.60 -- 6.59 mg/L 01/20/15 -- 5.68 5.69 1.91 -- 6.29 6.09 2.91 4.47 6.08 -- -- 2.90 5.36 -- 6.37 -- -- -- -- -- -- (Verification) mg/L 03/20/15 -- -- -- -- -- -- -- -- -- 6.92 -- -- -- -- -- -- -- -- -- -- -- -- mg/L 07/23/15 -- 4.17 5.49 -- -- 6.10 6.10 4.10 4.24 Dry -- -- 0.62 4.31 -- 5.76 7.05 7.25 4.92 6.42 -- 7.23 mg/L 01/12/16 -- 5.09 7.01 1.27 -- 6.55 5.01 2.05 4.94 -- -- -- 1.66 6.00 -- 7.04 7.47 8.24 5.33 7.15 -- 2.52 mg/L 01/15/16 -- 4.60 8.01 0.57 -- 7.43 7.39 1.98 5.61 7.02 -- -- 0.68 6.50 -- 8.50 7.67 8.65 4.27 -- 7.17 Dry mg/L 08/01/16 -- 3.88 5.71 -- 4.35 6.47 6.68 3.77 3.31 -- -- -- 1.35 4.78 -- 5.39 7.26 7.18 4.39 6.61 -- mg/L 01/17/17 -- 4.54 6.29 -- -- 5.05 5.99 2.22 4.21 -- -- -- 0.73 4.34 -- 5.70 7.20 6.13 4.03 5.51 -- Dry mg/L 07/24/17 -- 2.11 6.95 0.43 -- 5.94 5.90 2.66 5.43 -- -- -- 1.44 6.45 -- 5.43 8.86 9.33 2.39 -- 5.70 Dry (Verification) mg/L 08/24/17 -- -- -- 0.67 -- -- -- -- -- -- -- -- -- -- -- -- -- 8.50 -- -- -- mg/L 11 /01 /17 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 6.01 -- mg/L 02/20/18 -- 5.02 7.39 2.50 -- 5.39 5.77 2.95 4.76 Dry -- -- 0.70 4.72 -- 6.21 6.46 8.10 4.63 -- 5.66 Dry mg/L 08/08/18 -- 3.88 5.92 1.20 -- 6.29 6.00 2.06 3.85 -- -- -- 1.70 5.85 -- 6.54 7.04 7.50 2.39 -- 6.36 Dry mg/L 08/13/19 -- 1.65 6.34 0.28 -- 6.05 6.97 2.27 4.42 5.86 -- -- 2.55 4.96 -- 6.54 7.17 7.12 1.93 -- 5.58 4.66 mg/L 01/13/20 -- 2.21 6.61 1.19 -- 6.38 7.55 3.13 6.52 3.11 -- -- 1.27 6.28 -- 7.48 6.72 6.92 4.20 -- 8.74 Dr Notes: mg/L = milligrams per liter -- = no data available S.U. = Standard Units NTU = Nephelometric Turbidity Units ND = Not detected at the stated reporting limit uS/cm= microsiemens per centimeter GOLDER Page 3 of 3 March 2020 Table 6 Summary of Detected Constituents in Surface Water Rowan County Landfill (ActW, MEW and Closed C. Facllitles: Permit 8043 Project No. 19123756.100 Surface Water Mo,ltodog Points Detected Monitoring Units Sample Data MDL MRL EWE Reporting upstream Downstream Blanks SW-1 SW-2 ActNe MEW SWJ Landfill SW-4 SW46 C8D Landfill SWS Constituents/Analytes Llmll Antimony u9/L 12/30/05 - - 30 ND ND ND No SW Standard u9/L 09/26/06 - - 30 ND ND Dry ND Dry Dry ND uglL 01/31/07 - - 6 ND ND ND ND Dry ND ND u9/L 07/12/07 - - 6 1.29 J 1.24 J Dry Dry Dry ND ND uglL 01/17/08 - - 6 ND ND ND ND Dry ND ND uglL 07/30/06 - - 6 2.31 J 1.75 J Dry Dry Dry Dry ND uglL 01/21/09 - - 6 ND ND ND ND Dry ND ND ug/L 07/14/09 - - 6 ND ND Dry ND Dry Dry ND ug/L 01/07/10 - - 6 ND ND 0.129 J ND ND ND ug/L 07/20/10 - - 6 ND ND Dry ND Dry Dry ND ug/L 01/31/11 - - 6 ND ND ND ND Dry ND ND ug/L 07/18ill - - 6 0.228 J 0.222 J Dry ND Dry ND ND u9/L 01/24/12 - - 6 ND ND ND ND Dry ND 0.259 J u9/L 07/17/12 - - 6 0.231 J ND Dry Dry Dry Dry ND u9/L 01/22/13 - - 6 ND ND ND ND Dry ND 0.35 J u9/L 07/15/13 - - 6 ND ND ND ND - ND ND u9/L 01/27/14 - - 6 ND ND ND ND - ND ND u9/L 07/15/14 - 6 ND ND Dry ND - ND ND u9/L 01/20/15 0.22 - 6 ND ND ND ND - ND ND u9/L 07/23/15 0.22 - 6 0.481 J 0.304 J Dry Dry - Dry ND u9/L 01/12/16 0.22 - 6 ND ND 0.253 B ND - ND 0.57] J uglL 08/01/16 0.22 - 6 0.372 J ND ND ND - Dry ND ug/L 01/18/17 0.3] - fi ND ND ND 0A44 J - Dry ND u9/L 07/24/17 0.3] - fi ND ND ND Dry - Dry ND ug/L 02/20/18 9.3] 6 ND ND ND ND - ND ND ug/L 08/08/18 1.85 800 - ND ND ND ND - ND ND u9/L 01/15/19 1.85 5.00 - ND ND ND ND ND ND ug/L u L 08/14/19 01/13/20 0.74 0.74 2.00 2.00 - ND ND ND ND Dry ND ND ND ND ND ND ND ND Arsenic uglL 11/30/05 - - 10 ND ND ND Human Health SW Standar= 10 ug/L ug/L 09/26/06 - - 10 ND ND Dry ND Dry Dry ND ug/L 01/31/07 - - 10 ND 6.9 B ND ND Dry ND 3 J ug/L 0]/12/07 - - 10 ND ND Dry Dry Dry ND ND ug/L 01/17/08 - - 10 2.5 J ND 3.4 J 3.9 J Dry ND ND ug/L 07/30/08 - - 10 3.5 J ND Dry Dry Dry Dry ND ug/L 01/21/09 - - 10 ND ND ND ND Dry ND ND ug/L 07/14/09 - - 10 ND ND Dry ND Dry Dry 3.84 J ug/L 01/07/10 - - 10 ND ND ND ND ND ND ug/L 07/20/10 - - 10 ND ND Dry ND Dry Dry ND ug/L 01/31/11 - - 10 3.55 B 3.18 B ND ND Dry ND 4.78 J ug/L 07/18/11 - - 10 ND ND Dry ND Dry 3.15 J ND ug/L 01/24/12 - - 10 ND ND ND ND Dry ND ND ug/L 07/1]/12 - - 10 4.8 J ND Dry Dry Dry Dry ND ug/L 01/22/13 - - 10 ND 3.48 J 4.12 J ND Dry ND ND ug/L 07/15/13 - - 10 ND ND ND ND - ND ND ug/L 01/27/14 - - 10 ND ND ND ND - ND ND ug/L 07/15/14 - 10 ND ND Dry ND - ND ND ug/L 01/20/15 5.4 - 10 ND ND ND ND - ND ND ug/L 07/23/15 6.8 - 10 ND ND Dry Dry - Dry ND ug/L 01/12/16 6.8 - 10 ND ND ND ND -- ND ND ug/L 08/01/16 6.8 - 10 ND ND ND ND - Dry ND ug/L 01/18/17 6.8 - 10 ND ND ND ND - Dry ND ug/L 07/24/17 6.8 - 10 ND ND ND Dry - Dry ND ug/L 02/20/18 6.8 10 ND ND ND ND - ND ND ug/L 0B/08/18 7.6 10.0 - ND ND ND ND -- ND ND ug/L 01/15/19 7.6 10.0 -- ND ND ND ND ND ND ug/L O8114/19 7.6 10.0 -- ND ND Dry ND ND ND ND u /L 01/13/20 7.6 10.0 ND ND ND ND ND ND Barium u/ 12/30/0 - - 00 ND ND ND Health SW Stadard=1000 ug/L u9L I 09/26/O5 0 ND ND Dry ND D Dry ND u9L 01/31/07 100 43.5 ]9.8 99.5 80.1 Dry 61.8 004 J ug/L 0712/07 1 1 J 43..1 J Dry Dry D J ND ug/L 01/17/08 00 37.3 J 378 J 109 114 Dry 19.1 00 ND ug/L 07/30/08 - - 100 56.] J 85.] J Dry Dry Dry Dry ND ug/L 01/21/09 - - 100 50.6 J 49.9 J 103 60.5 J Dry 73.8 J ND ug/L 07/14/09 - - 100 144 96.3 J Dry 144 Dry Dry ND ug/L 01/07/10 - - 100 49.6 J 50.2 J 116 66.4 J 88.4 J 0.481 J ug/L 07/20/10 - - 100 59.5 J 62.7 J Dry 71.9 J Dry Dry ND ug/L 01/31/11 - - 100 46.7 J 35.4 J 94.9 J 64.6 J Dry 104 ND ug/L 07/18/11 - - 100 53.9 J 60.4 J Dry .4 J Dry 75.5 J ND ug/L 01/24/12 - - 100 45.4 J 43.4 J 72.5 J 70.2 J Dry 82.4 J ND ug/L 07/1]/12 - - 100 40.8 J 40.4 J Dry Dry Dry Dry 1.32 J ug/L 01/21/13 - - 100 83.8 J 64 J MA J 71.9 J Dry 82.9 J 1.24 J ug/L 07/15/13 - - 100 56 J 62.3 J 73.2 J 69.2 J -- 89.8 J 1.75 J ug/L 01/27/14 - - 100 54.2 J 50.7 J 112 66.7 J -- 92.4 J 1.18 J ug/L 0]/15/14 - 100 39.7 J 39.2 J Dry 59.7 J -- 58.9 J ND ug/L 01/20/15 1 - 100 44 J 59.8 J 46.8 J 77 J -- 74A J 1.01 J ug/L 0]/23/15 1 - 100 39.1 J 55.5 J Dry Dry -- Dry ND ug/L 01/12/16 1 - 1.47.5 J 53.8 J 52A J 68 J -- 83.7 J 1.94 J ug/L 0B/01/16 1 -- 100 41.7 J 42.9 J 27 J 61.4 J -- Dry ND ug/L 01/18/17 1 -- 100 43.8 J 46.6 J 86.9 J 76.9 J -- Dry ND ug/L 0]/24/17 1 -- 100 120 48.6 J 56.0 J Dry -- Dry 2.03 J ug/L 02J20/18 1 100 53.3 J 52.2 J 120 64.9 J -- 81.1 J ND ug/L OB/08118 1A 10.0 -- 709 88.2 174 51.9 -- 83.3 3.31 J ug/L 01/lwl9 1A 10.0 -- 58.4 56.7 92.8 74.7 -- 86.2 ND ug/L Oa/14/19 1A 10.0 -- 115 109 Dry ]6.9 -- 79.5 2.69 J u /L 011IW20 1A 10.0 56.4 123 116 67.0 82.5 1.11 J G GOLDER March 2020 Table 6 Summary of Detected Constituents in Surface Water Rowan County Landfill (ActNe MSW and Closed C. Facilities: Permit 8043 Project No. 19123756.100 Surface Water Monitoring Points Detected Monitoring Unib Sample Date MDL MRL SWS Reporting Upstream Downstream Blanks SW-1 SW-2 ActNe MEW SW4 Landfill SW-4 SW.6 CSD Landfill SWd Constituents/Analytes Llmll Beryllium uglL 12/30/05 - - 2 NO NO NO Chronic SW Standartl=6.5 ugIL uglL 09/261Z - - 2 NO NO Dry NO Dry Dry NO Acute SW Standard=65 ug/L uglL 01/31/07 - - 1 ND ND ND ND Dry NO NO uglL 07/12/07 - - 1 ND ND Dry Dry Dry NO NO uglL 01/1]/08 - - 1 NO NO NO NO Dry NO NO uglL 07/30/08 - - 1 ND ND Dry Dry Dry Dry NO u91L 01/21/09 - - 1 NO NO NO NO Dry NO NO uglL 07/14/09 - - 1 0.608 J 0.316 J Dry NO Dry Dry NO uglL 01/07/10 - - 1 NO NO NO NO NO NO uglL 0]/20/10 - - 1 NO NO Dry NO Dry Dry NO uglL 01/31/11 - - 1 NO NO NO NO Dry NO NO uglL 07/18/11 - - 1 NO NO Dry NO Dry NO NO uglL 01/24/12 - - 1 NO NO NO NO Dry NO NO u91L 07/17/12 - - 1 NO NO Dry Dry Dry Dry NO u91L 01/22/13 - - 1 NO NO 0.108 J NO Dry NO NO uglL 07/15/13 - - 1 NO NO NO NO - NO NO uglL 01/27/14 - - 1 NO NO NO NO - NO NO uglL 07/15/14 - 1 NO NO Dry NO - NO NO uglL MOM 0.1 - 1 NO NO NO NO - NO NO u91L 07/23/15 0.1 - 1 NO NO Dry Dry - Dry NO uglL 01/12/16 0.1 - 1 NO NO NO NO - NO NO ug/ 08/01/16 0.1 - 1 NO NO NO NO - Dry NO ug/ 01/18/17 0.1 - 1 NO NO NO NO - Dry NO uglL 07/24/17 0.1 - 1 NO NO NO Dry - Dry NO uglL 02/20/18 0.1 1 NO NO NO NO - ND NO uglL 08/08/18 0.16 1.00 - 0.680 J 0.445 J NO NO - NO NO uglL 01/15/19 0.16 1.00 - NO NO NO NO -- NO NO ug/L u IL O8/14/19 01/13/20 0.16 0.16 1.00 1.00 0.2% J NO NO 0.242 Dry J NO NO NO -- NO NO NO NO Cadmium ug/L 12/30/05 -- - 1 NO NO NO SW Standards (ug/L)=Hardness Based ugIL 09126/06 -- -- 1 NO NO Dry NO Dry Dry NO SW-1: Chronic=0.32 Acute=2.01 ugl 01/31/07 - -- 1 NO NO NO NO Dry NO NO SW-2: Chronic=0.26 Acute=1.58 ugl 07/12/0] - -- 1 NO NO Dry Dry Dry NO NO SW-3 : Chronic=0.49 Acute=3.21 ugl 01/17/08 - -- 1 NO NO NO NO Dry NO NO SW4 Chronic=0.18Acute=1.01 ugl O7130/08 - - 1 NO NO Dry Dry Dry Dry 0.] J SW-S: Chronic=0.20Acute=1.12 ug l 0wl/09 - - 1 ND NO NO NO Dry NO NO ZL 0]/14/09 - - 1 0.184 J NO Dry 0.192 J Dry Dry NO L 01/07/10 - - 1 0.25 J 0.16 J NO 0.232 J -- 0.151 J ND ugl 0]Y20/10 - - 1 NO NO Dry NO Dry Dry NO ugl 01/31/11 -- -- 1 NO NO NO NO Dry NO NO ugl 0]118/11 - - 1 NO NO Dry NO Dry NO NO ugl 0W4/12 - - 1 NO NO NO NO Dry NO NO ugl 0]117/12 - - 1 NO NO Dry Dry Dry Dry NO ugl 01Y22/13 - - 1 NO NO NO NO Dry NO NO uglL 0]/15/13 - - 1 NO NO NO NO -- 0.385 J NO ugl 0W7/14 -- - 1 NO NO 1.92 NO -- NO NO ugl 0]115/14 - 1 NO NO Dry NO -- NO NO ugl 0W0115 036 -- 1 NO NO NO NO - NO NO ugl 0]Y23115 0.36 -- 1 NO NO Dry Dry -- Dry NO ugl 01/12/16 0.36 -- 1 NO NO NO NO -- NO NO ugl 081 1/16 0.36 -- 1 NO NO NO NO -- Dry NO uglL 01118/17 0.36 -- 1 NO NO NO NO -- Dry NO uglL 071241i7 0.36 -- 1 NO NO NO Dry -- Dry NO uglL 02120/18 0.36 1 NO NO NO NO -- NO 0.383 J uglL 06I08118 0.36 1 00 -- NO NO NO NO -- NO NO uglL 01/15/19 0.36 1.00 -- ND NO NO NO -- ND NO ug/L u /L 08114/19 01/13/20 0.36 0.36 1.00 1.00 -- NO NO NO NO Dry NO NO NO -- NO NO NO NO Chromium uglL 12/3010 - - 10 NO NO NO SW Standard, (uglL)=Hardness Based uglL 09/2 : - - 10 NO NO Dry NO Dry Dry NO SW-1: Chronic=55.34 Ac- 425.43 uglL 01/31/07 - - f0 NO NO NO NO Dry NO NO SW-2: Chronic=46.06 Acu[e=338.75 uglL 07/12/07 - - 10 NO NO Dry Dry Dry i] NO SW-3: Chronic=86.05 Acute=661.52 uglL 01/1710: - - 10 NO NO 3.9 J 4.1 J Dry NO NO SWd: Chronic=29.15 Acute=224.08 uglL 07/30/0 - - 10 NO NO Dry Dry Dry Dry 14.5 SW-S: Chronic=32.10 Acute=246.78 uglL 01/21/09 - - 10 NO NO NO NO Dry NO NO uglL 07/14/09 - - 10 17.4 7.68 J Dry NO Dry Dry NO u9IL 01/07/10 - - 10 NO NO NO NO NO NO ugf 07/20/10 - - 10 3.19 J 3.14 J Dry NO Dry Dry NO ug/ L 01/31/11 - - 10 NO NO 3.67 J NO Dry NO NO u9/L 07/18/11 - - 10 NO NO Dry 2.16 J Dry NO NO u9/L 01/24/12 - - 10 1.28 J NO 2.56 J NO Dry 1.16 J NO u9/L 07/17/12 - - 10 NO NO Dry Dry Dry Dry NO u9/L 01/22/13 - - 10 3.61 B 1.04 B ].08 B ND Dry NO 1.5 J ug/ L 07/15/13 - - 10 NO NO 1.66 J NO - NO NO ug/ L 01/27/14 - - 10 NO NO 4.06 J NO - NO NO ug/ L 07/15/14 - 10 NO NO Dry NO - NO NO ug/ L 01/20/15 1.4 - 10 NO NO NO NO - NO NO uglL 07/23/15 1.4 - 10 NO NO Dry Dry - Dry NO uglL 01/12/16 1.4 - 10 NO NO NO NO - NO NO uglL 08/01/16 1.4 - 10 NO NO NO NO - Dry NO uglL 01/18/17 1.4 - f0 NO 4.24 J NO NO - Dry NO uglL 07/24/17 1.4 - 10 9.46 J ND ND Dry - Dry NO uglL 02/20/18 1.4 10 NO ND NO NO - NO NO u91L 08/08/18 1.4 0. 1. 8.14 J 11.0 NO NO NO 1.66 J ugl 2.51 J 5 J 3.52 J NO NO NO ugL 0&1"19 1.6 0 NO 2N J D NO NO NO u L 01/30 100 NO D 2ry8 J 1.86 J 1.51 J NO G GOLDER March 2020 Table 6 Summary of Detected Constituents in Surface Water Rowan County Landfill (ActW, MSW and Closed C. Facilities: Permit 8043 Project No. 19123756.100 Surface Water Monitoring Points Detected Monitoring Uni[s Sample Date MDL MRL SWS Reporting upstream Downstream Blanks SW-1 SW-2 ActNe MEW SW4 Landfill SW-4 SW.6 CSD Landfill SW4 Constituents/Analytes Llmll Cobalt uglL 12/30/05 - - 10 ND ND ND No SW Standard uglL 09/28/06 - - 10 ND ND Dry ND Dry Dry ND uglL 01/31/07 - - 10 ND ND 6.4 J 2 J Dry ND ND uglL 07/12/07 - - 10 ND ND Dry Dry Dry ND ND uglL 01/17/08 - - 10 ND ND 4.7 J 2.2 J Dry 4.5 J ND uglL 07/30/08 - - 10 ND 2.1 J Dry Dry Dry Dry ND uglL 01/21/09 - - 10 1.4 J ND 8.3 J 1.6 J Dry 1.1 J ND uglL 07/14/09 - - 10 9J JDry Dry N D ugl 01/07/10 - - 10 1.1J 4 081 J 13.9 2.02 2.48 J ND uglL 07/20/10 - - 10 2.17 J 2.5 J Dry 1.71 J Dry Dry ND uglL 01/31/11 - - 10 1.15 J ND 3.42 J ND Dry 2.83 J ND uglL 07/18/11 - - 10 ND 1.19 J Dry ND Dry 1.24 J ND uglL 01/24/12 - - 10 ND ND 2.62 J ND Dry 1.4] J ND ug1L 07/17/12 - - 10 ND ND Dry Dry Dry Dry ND ug1L 01/22/13 - - 10 2.63 J ND 3.4 J 1.22 J Dry ND ND uglL 07/15/13 - - 10 ND ND 1.98 J ND - 1.4] J ND ug1L 01/21/14 - - 10 1.3] J 1.29 J 11 J 1.75 J - 1.]5 J ND uglL 07/15/14 - 10 ND ND Dry 1.31 J - ND ND uglL MOM 1.1 - 10 1.16 J 2.43 J 1.92 J ND - 1.83 J ND ug1L 07/23/15 1.1 - 10 1.51 J 1.64 J Dry Dry - Dry ND uglL 01/12/16 1.1 - 10 ND ND 1.74 J ND - ND ND ug/L 08/01/16 1.1 - 10 ND ND ND ND - Dry ND ug/L 01/18/17 1.1 - 10 ND ND 2.88 J ND - Dry ND ug/L 07/M17 1.1 - 10 8.41 J ND 1.14 J Dry - Dry ND uglL 02/20/18 1.1 10 1.23 6 1.45 6 NO 1.82 B - 2.1] B 1.22 J ug/L 08/08/18 1.4 10.0 - 5.2] J 3.36 J 12.1 1.45 J - 2.57 J ND ug/L 01/15/19 1.4 10.0 - ND ND 4.65 J ND - 1.84 J ND ug/L u IL 08/14/19 O1/13/20 1.4 1.4 10.0 10.0 - 4.45 J ND 4.60 8.47 J Dry J 2.82 J ND ND - 4.21 J 1.86 J ND ND Copper uglL 12/30/05 - - 200 ND ND ND SW Standards (ug/L)= uglL 09/28/OB - - 200 ND ND Dry ND Dry Dry NO (Acute=Hardness based) ugll- 01/31/0] - - 10 ND ND ND ND Dry ND ND SW-1: Chronic=2.7 Acute=9.60 ugll- 07/12/0] - - 10 ND ND Dry Dry Dry ND ND SW-2: Chronic=2.7 Acute=7.39 ug/L 01/17/08 - - 70 1 J 1.2 J 3.3 J 9.4 J Dry 0.8 J ND SW-3 Chronic = 2.7 Acute = 15.96 ug/L 07/30/08 - - 70 2.8 J 3.8 J Dry Dry Dry Dry ND SWd: Chronic=2.7 Acute=4.59 uglL 01/21/09 - - 10 ND ND ND ND Dry ND ND SW-5: Chronic = 2.7 Acute = 5.13 ug/L 07/14/09 - - 10 17.6 8.32 J Dry 0.81 B Dry Dry 1.04 J u9IL 01/07/10 - - 10 ND ND ND ND ND ND ug/L uWL 07/20/10 01/31/11 - - - - 10 10 ].1] J ND 7.51 ND J Dry 3.54 J ND ND Dry Dry Dry ND ND ND uglL 07/18/11 - - 10 ND 2.33 J Dry ND Dry ND ND uglL 01/24/12 - - 10 3.71 B 3.1] B 5.04 B 2.52 B Dry 2.66 B 2.78 J uglL 07/17/12 - - 10 ND ND Dry Dry Dry Dry ND ug/L 01/22/13 - - 70 4.03 J ND 7.1 J ND Dry ND ND uglL 07/15/13 - - 10 1.91 J 2.5 J 2.36 J ND - ND ND ug/L 01/27/14 - - 10 ND ND 3.61 J ND - ND ND uglL 07/15/14 - 10 ND ND Dry ND - ND ND u9IL MOM 1.8 - 10 ND ND ND ND - ND ND ug1L 0]/23/15 1.8 - 10 1.83 B ND Dry Dry - Dry 1.9 J uglL 01/12/16 1.8 - f0 ND ND 2.04 B ND - ND 3.52 J uglL 08/01/16 1.6 - 10 ND ND 2.11 J ND - Dry ND ug/ 01/18/17 1.8 - 10 3.86 B 4.56 B 3.62 B 2.2 B - Dry 4.8 J ug/L 0]/24/1] 1.6 - 10 15.4 B 3.49 B 2.04 B Dry - Dry 4.18 J ug/L 02/20/18 1.6 10 ND ND 2.88 J ND - ND ND ug/L 08/08/18 1.6 10.0 - 6.99 J 4.73 J ND ND - ND ND u9IL uglL 01/15/19 08/14/19 1.6 1.6 10.D 10.0 - - 249 J 22.9 1.74 17.4 J 6.58 Dry J ND ND - - ND ND ND 2.38 J u L 01/13/20 1.6 10.0 2.78 J 9.52 J 5.02 J 9.34 J 4.24 J ND Lead uglL 12/3010 - - f0 ND ND ND SW Standards (uglL)=Hardness Based uglL 09/28/O6 - - f0 ND ND Dry ND Dry Dry ND SW-1: Chronic=1.70 Acute=43.]1 uglL 01/31/0] - - 10 ND ND ND ND Dry ND ND SW '. Chronic=1.25 Acute =32A5 u9IL 07/12/07 - - f0 ND ND Dry Dry Dry ND SW-3 : Chronic =3.0]Acute =]8.]2 ug/L 01/17/08 - - 70 ND ND ND 5.3 J Dry ND ND SW-4: Chronic=0.]1 Acute=18.32 ug/L 07/30/08 - - 10 ND 2.4 J Dry Dry Dry Dry ND SW-S: Chronic=0.81 Acute=20.90 ug/L 01/21/09 - - 10 ND ND ND ND Dry ND ND uglL 07/14/09 - - 10 10.3 B 7.03 B Dry ND Dry Dry 3A J uglL 01/07/10 - - 10 ND 1.21 B ND 1.46 B 2.01 B 1.47 J ug/L 07/20/10 - - 10 ND 2.92 J Dry ND Dry Dry ND u9/L 01/31/11 - - 10 ND ND 3.22 J ND Dry ND ND ug/L 07/18/11 - - 10 ND ND Dry ND Dry ND ND u9/L 01/24/12 - - 10 ND ND 3.69 J ND Dry ND ND ug/L 07/17/12 - - 10 ND ND Dry Dry Dry Dry ND ug/L 01/22/13 - - 10 2.24 B ND 6.92 B 2.5 B Dry ND 1.97 J ug/L 07/15/13 - - 10 ND ND ND ND - ND ND ug/L 01/27/14 - - 10 ND ND 4.1 J ND - ND ND ug/L 07/15/14 - 10 ND ND Dry ND - ND ND ug/L 01/20/15 2.1 - 10 ND ND ND ND - ND ND u9IL 07/23/15 3.1 - 10 ND ND Dry Dry - Dry ND uglL 01/12/16 3.1 - 10 ND ND ND ND - ND ND uglL 08/01/16 3.1 - 10 ND ND ND ND - Dry ND ug/L 01/18/17 3.1 - 10 ND ND ND ND - Dry ND ug/L 07/24/17 3.1 - 10 5.21 J ND ND Dry - Dry ND uglL 02/20/18 3.1 10 ND ND ND ND - ND ND ug/L 08/08/18 3.1 10.0 - 5.94 J ND ND ND - ND ND uglL 01/15/19 3.1 10.0 - ND ND ND ND - ND ND ug/L 0114111 3.1 10.0 - ].J/ J 5.46 J Dry ND - ND ND u L 01/13/20 3.1 10.0 ND 6.]0 J ND 3.60 J ND ND G GOLDER March 2020 Table 6 Summary of Detected Constituents m Surface Water Rowan County Landfill (ActNe MEW a,d Closed C. Facilities: Permit 8043 Project No. 19123756.100 Surface Water Mo,ltodog Points Detected Monitoring Unite Sample Date MOIL MRL SWS Reporting upstream Downstream Blanks SW-1 SW-2 ActNe MEW SW4 Landfill SW-4 SW4 CSD Ua 111 SW4 Constituents/Analytes Limit Nickel uglL 12/30/05 - - 50 NO NO ND SW Standards (ug/L)= Hardness Based uglL 09/2 /06 - - 50 NO NO Dry ND Dry Dry ND SW-1 : Chronic=38.46 Acute=346.27 uglL 01/31/07 - - 50 NO NO NO ND Dry NO ND SW-2: Chronic=30.39 Acute=273.65 uglL 07/12/07 - - 50 NO NO Dry Dry Dry 10.3 J ND SW-3: Chronic=60.68 Acute=546.33 uglL 01/17/08 - - 50 NO NO 2.2 J 2A J Dry NO ND SW -4: Chronic=19.83 Acute=178.58 uglL 07/30/08 - - 50 NO NO Dry Dry Dry Dry 12.4 J SW-5: Chronic=21.91 Acute=197.29 uglL 01/21/09 - - 50 NO NO 2.3 J 2 J Dry 2.1 J ND u9IL 07/14/09 - - 50 7.02 J 3.67 B Dry 2.06 B Dry Dry 0.882 J u9IL 01/07/10 - - 50 NO NO NO ND NO ND u9IL 07/20/10 - - 50 NO NO Dry ND Dry Dry ND uglL 01/31/11 - - 50 NO NO NO ND Dry NO ND uglL 07/18/11 - - 50 NO NO Dry ND Dry NO ND uglL 01/24/12 - - 50 NO NO 2.63 J ND Dry 1.85 J ND u9IL 07/17/12 - - 50 NO NO Dry Dry Dry Dry ND u9IL 01/22/13 - - 50 NO NO 2.5 J ND Dry NO ND u9IL 07/15/13 - - 50 NO NO NO ND - NO ND u9IL 01/27/14 - - 50 NO NO 3.7 J ND - NO ND u9IL 07/15/14 - 50 NO NO Dry ND - NO ND u9IL 01/20/15 1.6 - 50 NO NO NO ND - NO ND u9IL 07/23/15 1.8 - 50 NO NO Dry Dry - Dry ND u9IL 01/12/16 1.8 - 50 NO NO NO ND - NO ND u9IL 08/01/16 2.2 - 50 NO NO NO ND - Dry ND u9IL 01/18/17 2.2 - 50 NO 2.n J NO NO - Dry NO u9IL 07/24/17 2.2 - 50 5.42 J NO NO Dry - Dry ND u9IL 02/20/18 2.2 50 NO NO NO ND - 4.20 J ND u9IL 08/08/18 2.2 10.0 - 6.82 J 3.87 J 2.34 J ND - 3.52 J ND uglL 01/15/19 2.2 10.0 - NO NO 3.39 J ND - 8.18 J NO uglL u L 08/14/19 01/13/20 2.2 2.2 10.0 10.0 - NO NO 2.47 NO J Dry 3.85 J NO 2.24 - J 8.37 J NO NO NO Selenium ug/L 12/30/05 - - 20 NO NO NO SW Standard = 5 ug/L uglL 09/26/06 - - 20 NO NO Dry NO Dry Dry NO ug/L 01/31/07 - - 10 3.2 B NO NO NO Dry NO 2 J ug/L 07/12/07 - - 10 NO NO Dry Dry Dry NO NO ug/L 01/1]/08 - - 10 NO NO ND ND Dry NO NO ug/L 07/30/08 - - 10 NO NO Dry Dry Dry Dry NO ug/L 01/21/09 - - 10 NO NO ND ND Dry 3.3 J NO ug/L 07/14/09 - - 10 NO NO Dry NO Dry Dry NO ug/L 01/0]/10 - - 10 NO NO ND NO NO NO ug/L 07/20/10 - - 10 NO NO Dry NO Dry Dry NO ug/L 01/31/11 - - 10 NO NO ND NO Dry NO ND ug/L 07/18/11 - - 10 NO NO Dry NO Dry NO ND ug/L 01/24/12 - - 10 NO NO ND NO Dry NO ND uglL 07/1]/12 - - 10 NO NO Dry Dry Dry Dry ND uglL 01/22/13 - - 10 NO NO ND ND Dry ND ND ug/L 07/15/13 - - 10 NO NO NO ND - NO ND ug/L 01/2]/14 - - 10 NO NO NO ND - NO ND ug/L 07/15/14 - 10 NO NO Dry ND - NO ND ug/L 01/ ME 5 - 10 NO NO ND ND - NO ND ug/L 07/23ME 5 - 10 NO NO Dry Dry - Dry ND ug/L 01/12/16 5 - 10 NO NO ND ND - ND ND uglL 08/01/16 6.2 - 10 NO NO NO ND - Dry ND uglL 01/18/17 6.2 - 10 NO NO NO NO - Dry NO ug/L 07/24/17 6.2 - 10 NO NO NO Dry - Dry NO ug/L 02/20/18 6.2 10 NO NO NO NO - NO NO ug/L 08/08/18 6.2 10.0 - NO NO NO NO - NO NO ug/L 01/15/19 6.2 10.0 - ND NO ND NO - ND NO ug/L u IL 08/14/19 01/13/20 6.2 6.2 10.0 10.0 - ND ND NO NO Dry ND NO NO -- ND ND NO NO Silver ugl 12/01/05 -- - 10 ND NO ND NO Chronic SW Standard=0.06 ugI ugl 09/26/06 -- - 10 ND NO Dry NO Dry Dry NO Acute SW Standard = Hardness Based ugl 01/31/07 - - 10 ND NO ND NO Dry ND NO SW-1 = 1.74 ugl 07/12/07 - - 10 ND NO Dry Dry Dry ND NO SW-2=1.08 ugl 01/17/08 - - 10 ND NO NO NO Dry NO NO SW-3=4.40 uglL 07/30/08 - - 10 ND NO Dry Dry Dry Dry NO SW4 =0.45 uglL 01/21/09 - - 10 ND NO NO ND Dry ND NO SW-5=0.55 uglL 07/14/09 - - 10 ND NO Dry NO Dry Dry NO ug/L 01/07/10 - - 10 ND NO 0.676 J NO -- ND NO uglL 07/20/10 - - 10 ND NO Dry NO Dry Dry NO uglL 01/31/11 - - 10 ND NO ND ND Dry ND NO ug/L 07/1&11 - - 10 ND NO Dry NO Dry NO NO ug/L 01/24/12 - - 10 ND NO ND NO Dry NO NO ug/L 07/1]/12 - - 10 NO NO Dry Dry Dry Dry NO ug/L 01/22/13 - - 10 NO NO ND NO Dry NO NO ug/L 07/15/13 - - 10 NO ND ND NO - NO NO ug/L 01/2]/14 - - 10 NO NO ND NO - NO NO ug/L 07/15/14 - 10 ND NO Dry NO - NO NO ug/L 01/ /15 1.9 - 10 2.23 B 2.31 B 2.45 B 2.63 B - 2.71 B 3.39 J ug/L 07/2&15 1.9 - 10 ND ND Dry Dry - Dry NO ug/L 01/12/16 1.9 - 10 ND ND ND NO - ND NO ug/L 08/01/16 1.9 - 10 ND ND ND NO - Dry NO uglL 01/18/17 1.9 - 10 ND NO NO NO - Dry NO uglL 07/24/17 1.9 - 10 ND ND ND Dry -- Dry NO ugl 02r20/18 1.9 10 ND ND ND NO -- ND NO ugl 08/08/18 1.9 10.0 - ND ND ND NO -- ND NO ugl 01/15/19 1.9 10.0 - ND ND ND NO -- ND NO ugl u /L OB/14119 01/13/20 1.9 1.9 10.0 10.0 -- ND ND ND ND Dry ND NO NO -- NO ND NO NO G GOLDER March 2020 Table 6 Summary of Detected Constituents m Surface Water Rowan County Landfill (ActW, MSW aad Closed C. Facilities: Permit 8048 Project No. 19123756.100 Surface Water Monitoring Pointe Detected Monitoring Uni[s Sample Date MDL MRL SWS Reporting Upstream Downstream Blanks SW-1 SW-2 ActNe MEW SW4 Landfill SW-4 SWdi CSD Landfill SWd Constltuente/Analytes Limit Thallium uglL 12/30/05 - - 10 ND ND ND No SW Standard uglL 09/26/06 - - 10 ND ND Dry ND Dry Dry ND u9IL 01/31/07 - - 5.5 ND ND ND ND Dry ND NO u9IL 07/12/07 - - 5.5 ND ND Dry Dry Dry ND NO u9IL 01/17/08 - - 5.5 ND ND 0.052 J 0.071 J Dry 0.112 J ND u9IL 07/30/08 - - 5.5 ND ND Dry Dry Dry Dry ND uglL 01/21/09 - - 5.5 ND ND ND ND Dry ND ND u9IL 07/14/09 - - 5.5 0.086 J 0.0]] J Dry 0.03] J Dry Dry ND u9IL 01/07/10 - - 5.5 ND ND ND ND ND ND u9IL 07/20/10 - - 5.5 ND ND Dry NO Dry Dry ND u9IL 01/31/11 - - 5.5 ND ND ND NO Dry ND ND u9IL 07/18/11 - - 5.5 ND ND Dry ND Dry ND ND uglL 01/24/12 - - 5.5 ND ND ND ND Dry ND ND u9IL 07/17/12 - - 5.5 ND ND Dry Dry Dry Dry ND uglL 01/22/13 - - 5.5 ND ND ND ND Dry ND ND u9IL 07/15/13 - - 5.5 ND ND ND ND - ND ND u9IL 01/21/14 - - 5.5 ND ND ND ND - ND ND u9IL 07/15/14 - 5.5 ND ND Dry ND - ND ND u9IL MOM 0.11 - 5.5 ND ND ND ND - ND ND uglL 07/23/15 0.11 - 5.5 ND ND Dry Dry - Dry ND u9IL 01/12/16 0.11 - 5.5 ND ND ND ND - ND ND uglL 08/01/16 0.11 - 5.5 ND ND ND ND - Dry ND u9IL 01/18/17 0.11 - 5.5 0.585 J NO 0.146 J ND - Dry ND uglL 0]/24117 0.11 - 5.5 0.203 J 0.152 J 0.133 J Dry - Dry ND uglL 02/20/18 0.11 5.5 ND ND ND ND - ND ND uglL 08/08/18 0.55 5.00 - ND ND ND ND - ND ND uglL uWL 01/15/19 08/14/19 0.55 0.22 5.00 2.00 - - ND ND ND ND ND Dry ND ND - - ND ND ND ND u L 01/13/20 0.22 2.00 ND ND ND ND ND ND Vanadium uglL 12/30/05 - - 40 ND ND NO No SW Standard u9IL 09/28/06 - - 40 ND ND Dry ND Dry Dry NO uglL 01/31/07 - - 25 ND ND ND ND Dry ND ND uglL 07/12/0] - - 25 3 J ND Dry Dry Dry ND ND ucd 01/i 7/08 - - 25 1 J 1.2 J 11.6 J 14.2 J Dry 4.5 J ND u9IL 07/30/08 - - 25 2.1 J 8.4 J Dry Dry Dry Dry ND uglL 01/21/09 - - 25 1.4 J ND ND NO Dry ND NO uglL 07/14/09 - - 25 50.2 28 Dry 1.94 J Dry Dry NO uglL 01/07/10 - - 25 2.9 J 2.95 J 1.71 J ND 3.21 J ND uglL 07/20/10 - - 25 22.9 J 23 J Dry ND Dry Dry ND uglL ut 01/31/11 07/18/11 - - - - 25 25 1.55 J 4.19 J 1.81 5.8 J 12 J Dry J ND 2.22 Dry J Dry 3.1] J ND ND ND uglL 01/24/12 - - 25 2.26 J 1.8 J 6.5 J ND Dry 1.84 J ND uglL 07/1]/12 - - 25 3.68 J 3.8 J Dry Dry Dry Dry NO uglL 01/22/13 - - 25 16 J 4.5 J 23.8 J ND Dry 2.]8 J NO uglL 07/15/13 - - 25 5.53 J ].3 J ].65 J 4.0] J - 1.54 J ND uglL 01/2]/14 - - 25 4.1 J 4.09 J 13.1 J 2.3 J - ND ND uglL 07/15/14 - 25 3.72 J 3.5 J Dry 1.93 J - 2.4 J ND uglL 01/20/15 1.4 - 25 2.06 J 2.46 J 3.24 J 1.51 J - 3.78 J ND uglL 07/23/15 1.4 - 25 4.23 J 3.4 J Dry Dry - Dry ND uglL 01/12/16 1.4 - 25 2.52 J 2.49 J 1.64 J ND - ND ND uglL 08/01/16 1.4 - 25 4.25 J 4.26 J 4.56 J 2.06 J - Dry ND uglL 01/18/17 1.4 - 25 2.19 J 2.51 J 3.46 J ND - Dry ND ug/L 07/24/17 1.4 - 25 36.6 6.89 J 3.80 J Dry - Dry ND uglL ut 02/20/18 08/08/18 1.425 1.4 10.0 - 4.74 J 31.2 5.36 23.1 J 4.32 1.62 J J 2A4 2.02 J - J - 3.6] J 2.44 J ND ND uglL 01/15/19 1.4 10.0 - 6.68 J 6A9 J 10.3 ND - ND ND uglL u L 08/14/19 01/13/20 1.4 1.4 10.0 10.0 - 18.3 5.03 J 24.4 18.9 Dry 6.23 J 1.81 5.93 J - J ND 7.82 J NO NO Zinc u9IL 12/30/05 - - 50 ND ND ND SW Standards(ug/L)=Hardness Based uglL 09/26/OB - - 50 ND ND Dry NO Dry Dry ND SW-1 : Chronic=87.33 Acute=8662 uglL 01/31/07 - - 10 ND ND ND 1.7 J Dry ND ND SW-2 Chronic=68.99 Acute=6843 uglL 07/12/07 - - 10 ].4 J ND Dry Dry Dry ].8 J ND SW-3: Chronic=137.87 Acute =136.]6 uglL 01/17/08 - - 10 2.8 J 4.1 J 28 25.3 Dry 5.4 J ND SW-4 Chronic=dd.99 Acute=46.62 uglL 07/30/08 - - 10 5.8 J 22.3 Dry Dry Dry Dry ND SW-S: Chronic=49.71 Acute=49.31 uglL 01/21/09 - - 10 ND ND 40.5 5.7 J Dry ND ND u9IL 07/14/09 - - 10 3].5 24.6 Dry 12.1 Dry Dry ND u9IL 01/07/10 - - 10 2.81 J 2.74 J 32.7 2.82 J 5.91 J ND u u 07/2 /10 0 10 10 ND 4.26 D J 19 ND Dry 9.2] J ND ND uWL 07/18/11 - - 10 ND 4.3 J Dry 8.28 J Dry ND ND uglL 01/24/12 - - f0 ND ND 10.2 B ND Dry ND 9.2] J uglL 07/1]/12 - - f0 ND ND Dry Dry Dry Dry NO uglL 01/22/13 - - f0 8.55 J ND 19.8 ND Dry ND NO uglL 07/15/13 - - f0 ND ND ND ND - 8.83 J ND u9IL 01/21/14 - - f0 4.41 J 4.86 J 24.9 4.9 J - 33.5 ND u9IL 07/15/14 - 10 ND ND Dry ND - ND ND u9IL 01/20/15 3.6 - f0 ND ND ND ND - ND ND u9IL 0]/23/15 3.8 - 10 ND ND Dry Dry - Dry ND u9IL 01/12/16 3.8 - 10 ND 3.89 J 11.2 ND - ND ND u9IL 08/01/16 4.4 - 10 ND ND 4.65 J ND - Dry ND u9IL 01/18/17 4.4 - 10 ND ND 16.5 ND - Dry ND ug/ ucd 07/24/17 02/20/18 4.4 4.4 - 10 10 63.1 ND ND ND ND 9.18 J Dry ND - - Dry ND ND ND u9IL 08/08/18 4.4 f0.0 - 21.8 14.6 5.61 J ND - ND ND uglL 01/15/19 4.4 10.0 - ND ND 10.4 ND - ND ND uglL 08/14/19 4.4 10.0 - 18.1 1].0 Dry 5.23 J - 4.]] J ND u L 01/13/20 4.4 10.0 4.]5 J 19.3 10.0 18.3 9.97 J ND G GOLDER March 2020 Table 6 Summary of Detected Constituents in Surface Water Rowan County Landfill (ActNe MSW and Closed C. Facllitl- Permit 8048 Project No. 19123756.100 Surface Water Monitoring Points Detected Monitoring Uni[s Sample Date MDL MRL SWS Reporting upstream Downstream Blanks ActNe MEW Landfill SW-1 SW-2 SW4 SW-4 SW4 CSD Landfill SW4 Constltuents/Analytes Llmll Acetone ugll- 12/30/05 - - 20 NO NO NO No SW Standard uglL 09/28/06 - - 100 NO NO Dry NO Dry Dry ND uglL 01/31/07 - - 100 NO NO 120 NO Dry ND ND (Verification) U91L 04/13/07 - - too 25 J NO U91L 07/12/07 - - too ND ND Dry Dry Dry NO 0.93 J uglL ut 01/1]/08 0]/30/08 - - - - 100 100 NO NO NO NO 14 J Dry NO Dry Dry Dry NO Dry NO ND uglL 01/21/09 - - 100 NO NO ND NO Dry NO NO uglL 07/14/09 - - too 4.3 J ND Dry ND Dry Dry NO uglL 01/07/10 - - too NO NO 150 ND NO NO (Verification) uglL MOM - - too 110 NO ND uglL 07/20/10 - - too NO NO Dry ND Dry Dry ND uglL 01/31/11 - - too NO NO NO NO Dry NO ND U91L 07/18/11 - - too NO NO Dry ND Dry NO ND uglL 01/24/12 - - too NO NO NO NODry NO ND uglL 07/17/12 - - too NO NO Dry Dry Dry Dry NO uglL 01/22/13 - - too NO NO NO NO Dry NO ND U9IL 07/15/13 - - too NO NO NO NO - NO ND U91L 01/2]/14 - - too NO NO 100 NO - NO NO uglL uWL 07/15/14 01/20/15 - 1.2 - - too 100 ND NO NO Dry NO - NO ND ND - NO NO NO ND uglL 0]/23/15 1.2 - 100 NO NO Dry Dry - Dry NO U9IL 01/12/16 1.2 - 100 ND ND ND NO - ND NO U91L 08/01/16 10 - 100 NO NO NO NO - Dry NO uglL 01/18/17 10 - 100 NO NO NO NO - Dry NO ug/ 07/M17 10 - 100 NO NO NO Dry - Dry 17 J ug/ 02/20/18 10 100 NO NO NO NO - NO NO uglL 08/08/18 10 20 - NO NO NO NO - NO NO uglL 01/15/19 10 20 - NO NO 53 NO - NO NO (Verification) uglL 02/21/19 10 20 - BS - NO ug/L u IL 08/14/19 01/13/20 10 10 20 20 - NO NO NO Dry NO - NO 10 J NO NO NO NO NO 2-Hexanone uglL 09/26/06 - - 50 NO NO Dry NO Dry NO No SW Standard uglL 01/31/07 -- -- 50 NO NO ND NO Dry NO NO uglL 07/12/07 - - 50 NO NO Dry Dry Dry Dry NO uglL 01/1]/08 - - 50 ND ND ND ND Dry ND NO uglL 07/30/08 - - 50 NO NO NO uglL 01/21/09 - - 50 NO NO NO NO Dry NO NO uglL 07/14/09 - - 50 NO NO Dry NO Dry Dry NO uglL 01/0]/10 - - 50 NO NO 3.2 J NO ND NO (Verification) uglL 01/20/10 - - 50 ].8 J NO NO IL 07/20/10 - - 50 NO NO Dry NO Dry Dry NO uglL ,1/31/11 - - 50 NO NO NO NO Dry NO NO uglL 0]/18/11 - - 50 NO NO Dry NO Dry NO NO ug/L Ot/24/12 - - 50 NO NO NO ND Dry NO NO ug/L 07/1]/12 - - 50 NO NO Dry Dry Dry Dry NO ug/L Ot/22/13 - - 50 NO NO NO NO Dry NO NO ug/L 07/15/13 - - 50 NO NO NO NO - NO NO ug/L 01/2]/14 - - 50 NO NO NO NO - NO NO ug/L 07/15/14 - 50 NO NO Dry NO - NO NO ug/L 01/ /15 0.88 - 50 NO NO NO NO - NO NO ug/L 07/2&15 0.88 - 50 NO NO Dry Dry - Dry NO ug/L 01/12/16 0.88 - 50 NO NO NO NO - NO NO ug/L 08/01/16 0.88 - 50 NO NO NO NO - Dry NO ug/L 01/1&17 0.88 - 50 NO NO NO NO - Dry NO ug/L 0]/24/1] 0.88 - 50 ND ND ND Dry - Dry NO ug/L 02/20/18 0.88 50 NO NO NO NO - NO NO ug/L 08/08/18 0.88 5.0 - NO NO NO NO - NO NO ug/L 01/15/19 0.88 5.0 - NO NO 6.3 NO - NO NO ug/L 02/21/19 0.88 5.0 - - NO ug/L u IL 08/14/19 01/13/20 0.88 0.88 5.0 5.0 - NO NO NO Dry NO - NO NO NO NO NO NO NO 2-Butanone uglL 12/30/05 - - 20 NO NO - - NO No SW Standard uglL 09/2610 - - 100 NO NO NO Dry NO ugM- 0113110; -- -- 100 NO NO 42 J NO Dry NO NO ugM- O711210] -- -- 100 NO NO Dry Dry Dry Dry NO ugM- O1/17108 -- -- 100 NO NO NO NO Dry NO NO ugM- O7/30108 - - 100 NO NO Dry Dry Dry Dry NO ugM- 01/21/09 - - 100 NO NO NO NO Dry NO NO ugM- O7114109 - - 100 NO NO Dry NO Dry Dry NO ugl 01/0]/10 - - 100 NO NO 190 NO NO NO (Verification) ugl 01M/10 - - 100 89 J NO NO ugA- 0]Y20110 -- -- 100 NO NO Dry NO Dry Dry NO ug/L 01/31/11 -- -- 100 ND NO NO NO Dry NO NO ug/L 0]118/11 -- -- 100 NO NO Dry NO Dry ND NO ug/L 01/24/12 -- -- 100 ND NO ND NO Dry ND NO ug/L 0]/1]/12 -- -- 100 ND NO Dry Dry Dry Dry NO ug/L 0lPM13 -- -- 100 ND NO ND NO Dry NO NO ug/L 0]/15/13 -- -- 100 ND NO NO NO -- NO NO ug/L 01/27/14 -- -- f00 NO NO 42 J NO -- NO NO ug/L 0]115114 -- -- f00 NO NO Dry NO -- NO NO ug/L 01/20/15 -- 100 NO NO NO NO -- NO NO ug/L 0]13/15 1.3 -- 100 NO NO Dry Dry -- Dry NO ug/L 01/121i6 - 100 ND NO NO NO - NO NO ug/L 08I01116 1.3 -- 100 ND NO NO NO - Dry NO ug/L 01/i811] 1.3 -- 100 NO NO NO NO - Dry NO ug/L 07124/1] -- 100 NO NO NO Dry - Dry NO ug/L 02I20/18 1.3 100 NO NO NO ND ND NO ug/L 08I08I18 1.3 5.0 - NO NO NO ND Dry NO NO ug/L 01/15/19 1.3 5.0 - NO NO 72 ND - NO NO (Verification) ug/L 02/21/1: 1.3 5.0 - 130 - NO ug/L 08I14/19 1.3 5.0 - NO NO Dry NO - NO NO u /L 01/13/20 1.3 5.0 NO NO NO NO NO NO G GOLDER March 2020 Table 6 Summary of Detected Constituents in Surface Water Rowan County Landfill (Active MSW and Closed C. Facilities: Permit 8043 Project No. 19123756.100 Surface Water Monitoring Points Detected Monitoring Consult uents/Analyles Units Sample Data MDL MRL SWS Reporting Llmll Upstream Downstream Blanks Active MSW Landfill SWA SW-2 SW4 SW-4 SW.6 CSD Landfill SWd 4-Methy1-2-pentenone u91L 12/30/05 - - 20 ND ND - - ND No SW Standard uglL 09/2 /06 - - 100 ND ND ND Dry ND uglL 01/31/07 - - 100 ND ND 1.3 J ND Dry ND ND uglL 07/12/07 - - 100 ND ND Dry Dry Dry Dry ND ug1L 01/17/08 - - 100 ND ND ND ND Dry ND ND ug1L 07/30/08 - - 100 ND ND Dry Dry Dry Dry ND uglL 01/21/09 - - 100 ND ND ND ND Dry ND ND ug/L 07/14/09 - - 100 ND ND Dry ND Dry Dry ND uglL 01/07/10 - - 100 ND ND 1.2 J ND ND ND (Verification) uglL MOM - - 100 ND ND ND ug/ 07/20/10 - - 100 ND ND Dry ND Dry Dry ND uglL 01/31/11 - - 100 ND ND ND ND Dry ND ND uglL 07/18/11 - - 100 ND ND Dry ND Dry ND ND ug/L O1/24/12 - - 100 ND ND ND ND Dry ND ND ug/L 07/1]/12 - - 100 ND ND Dry Dry Dry Dry ND uglL O1/22/13 - - 100 ND ND ND ND Dry ND ND uglL 07/15/13 - - 100 ND ND ND ND - ND ND uglL 01/2]/14 - - 100 ND ND ND ND - ND ND uglL 07/15/14 - 100 ND ND Dry ND - ND ND ugl 01/20/15 1.1 - 100 ND ND ND ND - ND ND ugl 0]Y23/15 1.1 - 100 ND ND Dry Dry - Dry ND ugl 01112 6 1.1 - 100 ND ND ND ND - ND ND ugl 08/01/i6 1.1 - 100 ND ND ND ND - Dry ND ug/L 01/18/17 1.1 -- 100 ND ND ND ND -- Dry ND ug/L 07/24/i7 1.1 -- 100 NO NO NODry -- Dry ND ug/L 02/20/18 1A 100 NO NO NOND -- NO ND ug/L 08108I18 1A 5.0 -- NO NO NO ND -- NO ND ug/L 01/15/19 1A 5.0 -- NO NO NOND -- NO ND ug/L u /L 08114/19 01/13/20 1.1 1.1 5.0 5.0 - ND ND ND Dry ND - ND ND ND NO ND ND ND Toluene ug/L 12130/0S -- - 5 ND ND ND ND SW Standard = 11 ug/L ug/L 09/26/06 - - 5 ND ND Dry ND Dry Dry ND ug/L 01131/0] - - 5 ND ND 0.59 J ND Dry ND ND ug/L 0711V 7 - - 1 ND ND Dry Dry Dry Dry 0.48 J ug/L 0111 ]/OB - - 1 ND ND ND OA J Dry ND ND ug/L 0]I30/OB - - 1 ND ND Dry Dry Dry Dry ND ug/L 01121/09 - - 1 ND ND ND ND Dry ND ND ug/L 0]/id/09 - - 1 ND ND Dry ND Dry Dry ND ug/L 01/0]/10 ND ND ND ND ND ND (Verification) ug/L 01/20/10 - - 1 ND ND ug/L 07120/10 - - 1 ND ND Dry ND Dry Dry ND ug/L 01131/11 - - 1 ND ND ND ND Dry ND ND ug/L 0]I18111 - - 1 ND ND Dry ND Dry ND ND ug/L 01124/12 - - 1 ND ND ND ND Dry ND ND ug/L 0711 ]12 - - 1 ND ND Dry Dry Dry Dry ND ug/L 01/22113 - - 1 ND ND ND ND Dry ND ND ug/L 07/15113 - - 1 ND ND ND ND - ND ND ug/L 0112]114 - - 1 ND ND ND ND - ND ND ug/L 0711 14 - 1 ND ND Dry ND - ND ND ug/L 01I20/15 0.14 - 1 ND ND ND ND - ND ND ug/L 0]123115 0.14 - 1 ND ND Dry Dry - Dry ND ug/L 01/12116 0.14 - 1 ND ND ND ND - ND ND ug/L 08/01/16 0.14 - 1 ND ND ND ND - Dry ND ug/L 01/18117 0.14 - 1 ND ND ND ND - Dry ND ug/L 0]/24/1] 0.14 - 1 ND ND ND Dry - Dry ND ug/L 02/20/18 0.14 1 ND ND ND ND - ND ND ug/L 08/08/18 0.14 1.0 - ND ND ND ND - ND ND ug/L 01/15/19 0.14 1.0 - ND ND ND ND - ND ND ug/L u L 08/14/19 01/13/20 0.14 0.14 1.0 1.0 - ND ND ND Dry ND - ND ND ND ND ND ND ND 1,4-Dioxene uglL 08/08/18 25 60 - ND ND ND NODry ND ND Human Health SW Standard=80 ug/L u91L 01/15/19 1.2 2.0 - ND ND 3.6 NO - 1.8 J NO (Verification) uglL 02/21/19 1.2 2.0 - ].0 - NO uglL u L 08/14/19 01/13/20 1.2 1.2 2.0 2.0 - ND ND Dry NO - 2.2 ND NO ND Notes: uglL =micrograms per liter S.U. - Standard Units NTU = Nephelometric Turbidity Units ND = Not detected at the stated reporting limit PBIcm= microsiemens percentimeter = no data available or not establishs B- blankqualified result J = Pnor to the August 2018 event, J flags are estimated values below the SW8 Reporting Iimil. Beginning with the August 2018 event, J flags are estimated values between MDL and MRL. Blanks = field, trip and method blanks Bolded = Conc-tmbons above Human Health or Chronic Surface Water Standard Shaded and Bold =Conc.n0 b- above Acute and Chronic Surface Water Standards SWS Reporting Limit = NCPQL PHor to 2007 and NCSWSL starting in 01/31/07 SW Standards= NC Freshwater Aquatic Life Standards as defined in 15A NCAC 2B Standard is a National Cntena per EPA MDL = Laboratory melhotl detection limo MRL = Laboratory melhotl reporting limit 1) Surace water monitoring point SW-1 is the upstream monitoring location 2) Histoncal data prior to September 2006 provided by Rowan County. 3) Surace water monitoring point SW-6 was omitted from the monitoring network during the latest revision to the facility's WQMP in relation to the Phase IV expansion. 4) The following dilutions were noted for the January 2020 event: Antimony and Thallium('. G GOLDER March 2020 Table 7 Summary of Surface Water Field Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Surface Water Monitoring Points Upstream Downstream Detected Monitoring Constituents/Analytes Units Sample Date Active MSW Land0il C&D Land0il SW-1 SW-2 SW-3 SW-4 SW-6 SW-5 pH S.U. 12/30/05 7.55 7.50 -- -- - -- (Held) S.U. 09/26/06 6.68 6.21 Dry 6.28 Dry Dry S.U. 01/31/07 6.55 6.13 6.34 5.94 Dry 6.59 S.U. 07/12/07 7.36 6.33 Dry Dry Dry 6.82 S.U. 01/17/08 6.24 6.52 6.57 6.25 Dry 5.99 S.U. 07/30/08 6.43 6.86 Dry Dry Dry Dry S.U. 01/21/09 6.17 5.38 6.12 5.49 Dry 5.19 S.U. 07/14/09 6.42 6.70 Dry 6.29 Dry Dry S.U. 01/07/10 6.70 6.64 6.44 6.73 -- 6.25 (Verification) S.U. 01/20/10 - - 6.31 - 6.50 -- S.U. 07/20/10 7.30 6.96 Dry 6.59 Dry Dry S.U. 01/31/11 6.67 5.87 5.70 6.94 Dry 5.77 S.U. 07/18/11 6.99 6.90 Dry 6.82 Dry 5.88 S.U. 01/24/12 6.72 6.58 6.61 6.23 Dry 5.91 S.U. 07/18/12 5.85 5.75 Dry Dry Dry Dry S.U. 01/22/13 6.95 6.47 6.20 6.36 Dry 6.15 S.U. 07/15/13 5.37 5.75 5.14 5.62 - 6.09 S.U. 01/27/14 6.76 6.51 6.42 6.29 - 5.89 S.U. 07/15/14 6.81 6.99 Dry 6.39 - 6.49 S.U. 01/20/15 6.29 5.57 6.05 5.76 - 5.02 S.U. 07/23/15 6.57 6.07 Dry Dry - Dry S.U. 01/12/16 6.45 5.92 6.42 6.64 - 5.56 S.U. 08/01/16 6.70 7.06 6.57 7.30 - Dry S.U. 01/18/17 5.67 6.27 5.40 5.67 - Dry S.U. 07/24/17 7.77 7.18 7.56 Dry - Dry S.U. 02/20/18 7.27 7.31 7.07 7.06 - 6.36 S.U. 08/Oam 6.24 7.53 6.06 8.10 - 5.94 S.U. 01/16/19 7.15 7.02 7.11 6.63 - 6.09 (Verification) S.U. 02/21/19 - - 7.32 - - -- S.U. 08/14/19 6.91 6.96 Dry 6.60 - 6.08 S.U. 01/13/19 7.39 6.40 7.35 5.87 5.75 Specific Conductivity PS/cm 12/30/05 145 150 - -- - -- (field) PS/cm 09/26/06 123 104 Dry 151 Dry Dry PS/cm 01/31/07 111 258 421 110 Dry 103 PS/cm 07/12/07 180 176 Dry Dry Dry 98 PS/cm 01/17/08 233 189 90 293 Dry 117 PS/CM 07/30/08 304 320 Dry Dry Dry Dry PS/cm 01/21/09 141 154 116 74 Dry 118 PS/cm 07/14/09 119 114 Dry 174 Dry Dry PS/cm 01/07/10 132 133 247 98 - 107 (Verification) PS/CM 01/20/10 - - 146 - 68 -- PS/cm 07/20/10 129 128 Dry 99 Dry Dry PS/cm 01/31/11 134 134 136 0.127 Dry 97 PS/cm 07/18/11 148 151 Dry 94 Dry 107 PS/cm 01/24/12 137 134 113 96 Dry 95 PS/CM 07/18/12 144 149 Dry Dry Dry Dry PS/cm 01/22/13 151 156 103 112 Dry 119 PS/cm 07/15/13 148 145 148 87 - 110 PS/cm 01/27/14 168 151 218 114 - 142 PS/cm 07/15/14 151 164 Dry 98 - 123 PS/cm 01/20/15 127 133 103 91 - 102 PS/cm 07/23/15 139 163 Dry Dry - Dry PS/cm 01/12/16 118 124 221 89 - 147 PS/cm 08/01/16 147 167 35 103 - Dry PS/cm 01/18/17 133 148 121 88 - Dry PS/cm 07/24/17 166 148 116 Dry - Dry PS/CM 02/20/18 163 159 291 105 - 181 PS/cm 08/Oam 120.2 52.6 388.4 109.4 - 209.6 PS/cm 01/06/19 114.2 114.8 282.8 100.4 - 122.2 (Verification) PS/cm 02/21/19 - - 355.4 -- - -- PS/cm 08/14/19 123.3 112.2 Dry 101.9 - 217.6 S/cm 01/13/20 63.9 60.3 263.4 38.3 30.2 Project No. 19123756.100 GGOLDER Page I of March 2020 Table 7 Summary of Surface Water Field Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Surface Water Monitoring Points Upstream Downstream Detected Monitoring Constituents/Analytes Units Sample Date Active MSW Landflll C&D Landflll SW-1 SW-2 SW-3 SW-4 SW-6 SW-5 Temperature "C 12/30/05 15.8 16.2 -- -- - -- (field) "C 09/26/06 17.4 20.0 Dry 19.6 Dry Dry "C 01/31/07 6.3 3.0 3.9 6.2 Dry 4.7 "C 07/12/07 22.5 22.32 Dry Dry Dry 19.22 "C 01/17/08 1.69 3.67 2.21 3.53 Dry 5.19 "C 07/30/08 25.76 26.19 Dry Dry Dry Dry "C 01/21/09 1.59 0.22 3.68 2.79 Dry 2.1 "C 07/14/09 22.36 21.50 Dry 22.04 Dry Dry "C 01/07/10 1.86 1.23 2.33 4.94 - 1.43 (Verification) "C O1/20110 - - 5.68 -- 8.89 - "C 07/20/10 25.61 24.57 Dry 23.99 Dry Dry "C 01/31/11 5.92 5.86 5.47 6.77 Dry 7.50 "C 07/18/11 24.77 24.71 Dry 23.21 Dry 29.36 "C 01/24/12 9.14 7.94 9.21 7.14 Dry 12.1 "C 07/18/12 25.65 25.87 Dry Dry Dry Dry "C 01/22/13 4.40 4.40 4.30 4.20 Dry 6.30 "C 07/15/13 24.40 23.51 26.41 20.64 - 26.56 "C 01/27/14 6.8 4.6 6.5 9.4 - 4.9 "C 07/15/14 25.2 25.9 Dry 19.1 - 30.4 "C 01/20/15 5.8 5.7 6.1 8.6 - 7.5 "C 07/23/15 25.2 24.0 Dry Dry - Dry "C 01/12/16 5.4 3.9 5.3 7.4 - 5.4 "C 08/01/16 24.6 24.6 26.3 22.6 - Dry "C 01/18/17 9.0 13.4 12.1 13.8 - Dry "C 07/24/17 24.9 24.2 22.4 Dry - Dry "C 02/20/18 14.3 14.8 14.7 16.5 - 106.7 "C 08/Oa/18 23.7 24.1 26.3 23.6 - 23.60 "C 01/16/19 5.5 5.6 4.3 7.2 - 7.30 (Verification) "C 02/21/19 - - 5.0 -- - -- "C 08/14/19 23.9 24.0 Dry 21.5 - 25.1 °C 01/13/20 13.1 13.0 14.1 13.5 13.2 Turbidity NTU 09/26/06 84.4 193 Dry >1000 Dry Dry (field) NTU 01/31/07 19.3 57.3 56.5 26.8 Dry 817 NTU 07/12/07 0.0 0.0 Dry Dry Dry >1000 NTU 01/17/08 10.2 19.9 70.4 128 Dry 48.3 NTU 07/30/08 60.3 27.9 Dry Dry Dry Dry NTU 01/21/09 36.4 15.7 91.1 14.8 Dry 12.4 NTU 07/14/09 316 253 Dry 15.4 Dry Dry NTU 01/07/10 28.7 21.4 32.8 11.0 - 49.8 (Verification) NTU 01/20/10 - - -- -- - -- NTU 07/20/10 131 146 Dry 29.6 Dry Dry NTU 01/31/11 14.6 11.1 70.9 8.10 Dry 19.0 NTU 07/18/11 25.6 16.4 Dry 15.4 Dry 11.6 NTU 01/24/12 20.2 18.9 95.4 14.8 Dry 36.2 NTU 07/18/12 31.4 23.5 Dry Dry Dry Dry NTU 01/22/13 15.8 37.5 213 15.7 Dry 32.7 NTU 07/15/13 35.0 45.6 73.0 22.9 - 19.4 NTU 01/27/14 47.7 39.5 63.6 33.2 - 65.9 NTU 07/15/14 18.8 17.1 Dry 21.5 - 26.9 NTU 01/20/15 12.3 15.9 15.6 7.12 - 38.7 NTU 07/23/15 17.4 27.3 Dry Dry - Dry NTU 01/12/16 23.3 24.9 18.3 9.05 - 19.4 NTU 08/01/16 22.0 18.0 65.3 10.7 - Dry NTU 01/18/17 14.4 13.4 32.6 7.7 - Dry NTU 07/24/17 9.48 18.1 15.5 Dry - Dry NTU 02/20/18 25.8 21.2 42.0 14.4 - 30.6 NTU 08/08/18 220 164 43.9 12.6 - 25.8 NTU 01/16/19 60.4 48.5 147 9.14 - 12.7 (Verification) NTU 02/21/19 - - 235 -- - - NTU 08/14/19 992 693 Dry 16.3 - 25.2 NTU 01/13/20 70.7 368 108 128 116 Project No. 19123756.100 GGOLDER Page 2 of March 2020 Table 7 Summary of Surface Water Field Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Surface Water Monitoring Points Upstream Downstream Detected Monitoring Constituents/Analytes Units Sample Date Active MSW Landfill C&D Landfill SW-1 SW-2 SW-3 SW-4 SW-6 SW-5 Oxygen Reduction Potential mV 09/26/06 86 124 Dry -7 Dry Dry (fold) mV 01/31/07 32 202 73 211 - 212 mV 07/12/07 90 27 -- -- - -- mV 01/17/08 - 173 - -- Dry -- mV 07/30/08 -6 108 Dry Dry Dry Dry mV 01/21/09 73.5 162.4 84.2 201.4 Dry 164.8 mV 07/14/09 127.5 106.8 Dry -6.6 Dry Dry mV 01/07/10 42.3 141.5 4.5 24.9 - 130.6 (Verification) mV 01/20/10 - - 108.0 -- 80.5 - mV 07/20/10 -5.3 27.7 Dry 29.6 Dry Dry mV 01/31/11 89.1 173.1 90.9 12.6 Dry 282.0 mV 07/18/11 65.2 76.2 Dry 56.1 Dry 72.1 mV 01/24/12 -121.7 -150.2 -107.5 -174.4 Dry -147.2 mV 07/18/12 45.5 33.0 Dry Dry Dry Dry mV 01/22/13 - - -- -- Dry - mV 07/15/13 114.2 130.1 66.1 128.3 - 93.1 mV 01/27/14 34.9 93.2 21.8 34.8 - 102.9 mV 07/15/14 214.6 102.3 Dry 60.0 - 103.7 mV 01/20/15 85.0 155.0 83.5 114.1 - 183.7 mV 07/23/15 83.7 -57.5 Dry Dry - Dry mV 01/12/16 228.8 187.2 342.8 227.1 - 137.4 mV 08/01/16 121.5 121.7 164.2 141.8 - Dry mV 01/18/17 142.5 168.1 176.1 154.8 - Dry mV 07/24/17 - - 67.6 Dry - Dry mV 02/20/18 92.5 133.6 110.7 78.30 - 106.70 mV 08/0a/18 196.4 185.9 -- 157.8 - 190.8 mV 01/15/19 69.6 94.7 -3.3 52.7 - 165.5 (Verification) mV 02/21/19 - - 296.8 -- - -- mV 08/14/19 350.8 250.8 Dry 340.3 - 165.2 mV 01/13/20 143.1 178.5 41.2 157.0 139.5 Dissolved Oxygen mg/L 09/26/06 - - Dry -- - Dry (field) mg/L 01/31/07 13 14.4 14 13.4 Dry 14.1 mg/L 07/12/07 8.5 9.3 Dry Dry Dry - mg/L 01/17/08 - 13.94 - -- Dry - mg/L 07/30/08 7.74 7.89 Dry Dry Dry Dry mg/L 01/21/09 11.48 12.6 8.29 8.13 Dry 6.21 mg/L 07/14/09 6.71 7.31 Dry 3.78 Dry Dry mg/L 01/07/10 14.72 15.01 9.14 11.00 -- 10.22 (Verification) mg/L 01/20/10 - - - -- 9.60 - mg/L 07/20/10 8.23 6.35 Dry 4.03 Dry Dry mg/L 01/31/11 14.84 13.85 5.52 13.81 Dry 13.21 mg/L 07/18/11 4.10 3.91 Dry 4.60 Dry 4.86 mg/L 01/24/12 15.54 13.32 15.82 12.71 Dry 11.85 mg/L 07/18/12 10.75 10.01 Dry Dry Dry Dry mg/L 01/22/13 - - - -- Dry -- mg/L 07/15/13 8.98 7.34 5.82 8.73 - 6.47 mg/L 01/27/14 11.38 12.15 9.58 8.44 - 7.32 mg/L 07/15/14 7.56 6.53 Dry 6.04 - 9.82 mg/L 01/20/15 11.36 10.79 10.46 11.29 - 9.10 mg/L 07/23/15 6.38 5.66 Dry Dry - Dry mg/L 01/12/16 11.81 13.77 11.27 11.91 - 1.65 mg/L 08/01/16 6.98 6.64 6.65 6.56 - Dry mg/L 01/18/17 8.66 8.53 6.19 6.50 - Dry mg/L 07/24/17 4.44 7.23 7.46 Dry - Dry mg/L 02/20/18 10.44 9.96 8.60 7.83 - 15.10 mg/L 08/0aI18 6.95 6.50 -- 5.13 - 0.12 mg/L 01/16/19 11.78 11.84 9.29 9.98 - 5.47 (Verification) mg/L 02/21/19 - - 5.04 -- - -- mg/L 08/14/19 7.34 6.37 Dry 4.77 - 0.14 m /L 01/13/20 1 8.32 1 9.29 6.53 9A4 8.32 Notes: mg/L = milligrams per liter --= no data available S.U. = Standard Units NTU = Nephelometric Turbidity Units ND = Not detected at the stated reporting limit uS/cm= microsiemens per centimeter Monitoring point SW-6 was omitted from the monitoring network during the latest revision to the facility's WOMP Prefect No. 19123756.100 GGOLDER Page 3of3 March 2020 Project No. 19123756.100 Table 8 Summary of Detected Leachate Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Detected monitoring oring Constituents Units Sample Date MDL MRL SWS Reporting Limit Leachate Blanks Antimony ug/L 09/27/06 -- -- 30 ND -- ug/L 01 /31 /07 -- -- 6 0.73 J ND ug/L 07/12/07 -- -- 6 4.34 J ND ug/L 01/17/08 -- -- 6 2.85 J ND ug/L 07/30/08 -- -- 6 1.8 J ND ug/L 01/22/09 -- -- 6 1.62 J ND ug/L 07/14/09 -- -- 6 3.04 J ND ug/L 01/07/10 -- -- 6 3.46 J ND ug/L 07/20/10 -- -- 6 3.79 J ND ug/L 01/31/11 -- -- 6 ND ND ug/L 07/18/11 -- -- 6 ND ND ug/L 01/25/12 -- -- 6 1.92 J ND ug/L 07/18/12 -- -- 6 5.52 J ND ug/L 01/23/13 -- -- 6 ND 0.35 J ug/L 07/17/13 -- -- 6 ND ND ug/L 01/27/14 -- -- 6 ND ND ug/L 07/16/14 -- -- 6 2.61 J ND ug/L 01/20/15 -- -- 6 9.66 J ND ug/L 07/23/15 -- -- 6 3.32 J ND ug/L 01/12/16 -- -- 6 ND ND ug/L 08/01/16 -- -- 6 ND ND ug/L 01/19/17 3.7 -- 6 ND ND ug/L 07/27/17 3.7 -- 6 ND ND ug/L 02/20/18 3.7 -- 6 ND ND ug/L 08/08/18 1.85 5.00 -- 2.32 J ND ug/L 01/16/19 3.7 10.0 -- ND ND ug/L 08/15/19 3.7 10.0 -- ND ND u /L 01/16/20 3.7 10.0 -- ND ND Arsenic ug/L 09/27/06 -- -- 10 ND -- ug/L 01/31/07 -- -- 10 ND ND ug/L 07/12/07 -- -- 10 ND ND ug/L 01/17/08 -- -- 10 ND ND ug/L 07/30/08 -- -- 10 ND 3.2 J ug/L 01 /22/09 -- -- 10 ND ND ug/L 07/14/09 -- -- 10 10.8 B 3.84 J ug/L 01/07/10 -- -- 10 3.94 J ND ug/L 07/20/10 -- -- 10 14 ND ug/L 01/31/11 -- -- 10 ND ND ug/L 07/18/11 -- -- 10 7.59 J ND ug/L 01/25/12 -- -- 10 ND ND ug/L 07/18/12 -- -- 10 ND ND ug/L 01/23/13 -- -- 10 ND ND ug/L 07/17/13 -- -- 10 ND ND ug/L 01/27/14 -- -- 10 ND ND ug/L 07/16/14 -- -- 10 ND ND ug/L 01/20/15 -- -- 10 ND ND ug/L 07/23/15 -- -- 10 ND ND ug/L 01/12/16 -- -- 10 ND ND ug/L 08/01/16 -- -- 10 ND ND ug/L 01/19/17 6.8 -- 10 ND ND ug/L 07/27/17 6.8 -- 10 15.3 ND ug/L 02/20/18 6.8 -- 10 ND ND ug/L 08/08/18 7.6 10.0 -- ND ND ug/L 01/16/19 7.6 10.0 -- ND ND ug/L 08/15/19 7.6 10.0 -- ND ND u /L 01/16/20 7.6 10.0 -- ND ND GOLDER Page 1of21 March 2020 Project No. 19123756.100 Table 8 Summary of Detected Leachate Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Detectea monitoring Constituents/Anal tes Units Sample Date MDL MRL SWS Reporting Limit Leachate Blanks Barium ug/L 09/27/06 -- -- 500 ND -- ug/L 01 /31 /07 -- -- 100 381 0.2 ug/L 07/12/07 -- -- 100 357 ND ug/L 01/17/08 -- -- 100 149 ND ug/L 07/30/08 -- -- 100 702 ND ug/L 01/22/09 -- -- 100 443 ND ug/L 07/14/09 -- -- 100 585 ND ug/L 01/07/10 -- -- 100 465 0.418 J ug/L 07/20/10 -- -- 100 470 ND ug/L 01/31/11 -- -- 100 101 ND ug/L 07/18/11 -- -- 100 154 ND ug/L 01/25/12 -- -- 100 131 ND ug/L 07/18/12 -- -- 100 102 ND ug/L 01/23/13 -- -- 100 131 1.24 J ug/L 07/17/13 -- -- 100 208 1.75 J ug/L 01/27/14 -- -- 100 182 1.18 J ug/L 07/16/14 -- -- 100 124 ND ug/L 01/20/15 -- -- 100 435 1.01 J ug/L 07/23/15 -- -- 100 150 ND ug/L 01/12/16 -- -- 100 236 ND ug/L 08/01/16 -- -- 100 178 ND ug/L 01/19/17 1 -- 100 183 ND ug/L 07/27/17 1 -- 100 683 2.03 J ug/L 02/20/18 1 -- 100 279 ND ug/L 08/08/18 1.1 10.0 -- 141 3.31 J ug/L 01 /16/19 1.1 10.0 -- 631 ND ug/L 08/15/19 1.1 10.0 -- 640 ND u /L 01/16/20 1.1 10.0 -- 562 1.11 J Cadmium ug/L 09/27/06 -- -- 1 ND -- ug/L 01/31/07 -- -- 1 ND ND ug/L 07/12/07 -- -- 1 ND ND ug/L 01/17/08 -- -- 1 ND ND ug/L 07/30/08 -- -- 1 ND ND ug/L 01/22/09 -- -- 1 ND ND ug/L 07/14/09 -- -- 1 0.534 J ND ug/L 01/07/10 -- -- 1 ND ND ug/L 07/20/10 -- -- 1 ND ND ug/L 01/31/11 -- -- 1 ND ND ug/L 07/18/11 -- -- 1 ND ND ug/L 01/25/12 -- -- 1 ND ND ug/L 07/18/12 -- -- 1 ND ND ug/L 01/23/13 -- -- 1 ND ND ug/L 07/17/13 -- -- 1 ND ND ug/L 01/27/14 -- -- 1 ND ND ug/L 07/16/14 -- -- 1 ND ND ug/L 01/20/15 -- -- 1 ND ND ug/L 07/23/15 -- -- 1 ND ND ug/L 01/12/16 -- -- 1 ND ND ug/L 08/01/16 -- -- 1 ND ND ug/L 01/19/17 0.36 -- 1 ND ND ug/L 07/27/17 0.36 -- 1 0.629 J ND ug/L 02/20/18 0.36 -- 1 ND ND ug/L 08/08/18 0.36 1.00 -- ND ND ug/L 01/16/19 0.36 1.00 -- ND ND ug/L 08/15/19 0.36 1.00 -- ND ND ug/L 1 01/16/20 1 0.36 1 1.00 1 ND ND J GOLDER Page 2of21 March 2020 Project No. 19123756.100 Table 8 Summary of Detected Leachate Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Detectea monitoring Constituents/Anal tes Units Sample Date MDL MRL SWS Reporting Limit Leachate Blanks Chromium ug/L 09/27/06 -- -- 10 ND -- ug/L 01/31/07 -- -- 10 ND ND ug/L 07/12/07 -- -- 10 ND ND ug/L 01/17/08 -- -- 10 ND ND ug/L 07/30/08 -- -- 10 ND ND ug/L 01/22/09 -- -- 10 ND ND ug/L 07/14/09 -- -- 10 0.534 J ND ug/L 01/07/10 -- -- 10 12 ND ug/L 07/20/10 -- -- 10 14.5 ND ug/L 01/31/11 -- -- 10 4.5 J ND ug/L 07/18/11 -- -- 10 4.07 J ND ug/L 01/25/12 -- -- 10 7 J ND ug/L 07/18/12 -- -- 10 4.21 J ND ug/L 01/23/13 -- -- 10 4.92 B 1.5 J ug/L 07/17/13 -- -- 10 4.34 J ND ug/L 01/27/14 -- -- 10 9.33 J ND ug/L 07/16/14 -- -- 10 4.43 J ND ug/L 01/20/15 -- -- 10 36.4 ND ug/L 07/23/15 -- -- 10 5.66 J ND ug/L 01/12/16 -- -- 10 6.37 J ND ug/L 08/01/16 -- -- 10 2.73 J ND ug/L 01/19/17 1.4 -- 10 3.49 J ND ug/L 07/27/17 1.4 -- 10 31.6 ND ug/L 02/20/18 1.4 -- 10 10.7 ND ug/L 08/08/18 1.4 10.0 -- 3.35 B 1.66 J ug/L 01/16/19 1.4 10.0 -- 13.6 ND ug/L 08/15/19 1.4 10.0 -- 17.5 ND u /L 01/16/20 1.4 10.0 -- 7.58 J ND Cobalt ug/L 09/27/06 -- -- 10 11.4 ND ug/L 01/31/07 -- -- 10 5.6 J ND ug/L 07/12/07 -- -- 10 19.8 ND ug/L 01/17/08 -- -- 10 25.8 ND ug/L 07/30/08 -- -- 10 9.4 J 1.1 J ug/L 01/22/09 -- -- 10 14.3 1.5 J ug/L 07/14/09 -- -- 10 19.2 ND ug/L 01/07/10 -- -- 10 14.3 ND ug/L 07/20/10 -- -- 10 12.2 ND ug/L 01/31/11 -- -- 10 8.21 J ND ug/L 07/18/11 -- -- 10 8.26 J ND ug/L 01/25/12 -- -- 10 7.77 J ND ug/L 07/18/12 -- -- 10 7.68 J ND ug/L 01/23/13 -- -- 10 6.57 J ND ug/L 07/17/13 -- -- 10 9.38 J ND ug/L 01/27/14 -- -- 10 12.2 ND ug/L 07/16/14 -- -- 10 8.42 J ND ug/L 01/20/15 -- -- 10 20.4 ND ug/L 07/23/15 -- -- 10 12.6 ND ug/L 01/12/16 -- -- 10 16.2 ND ug/L 08/01/16 -- -- 10 10.1 ND ug/L 01/19/17 1.1 -- 10 17.4 ND ug/L 07/27/17 1.1 -- 10 23.0 ND ug/L 02/20/18 1.1 -- 10 42.0 1.22 J ug/L 08/08/18 1.4 10.0 -- 10.5 ND ug/L 01/16/19 1.4 10.0 -- 8.16 J ND ug/L 08/15/19 1.4 10.0 -- 11.0 ND u /L 1 01/16/20 1 1.4 1 10.0 1 4.75 J ND J GOLDER Page 3of21 March 2020 Project No. 19123756.100 Table 8 Summary of Detected Leachate Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Detectea monitoring Constituents/Anal tes Units Sample Date MDL MRL SWS Reporting Limit Leachate Blanks Copper ug/L 09/27/06 -- -- 200 ND -- ug/L 01/31/07 -- -- 10 ND ND ug/L 07/12/07 -- -- 10 ND ND ug/L 01/17/08 -- -- 10 ND ND ug/L 07/30/08 -- -- 10 ND ND ug/L 01/22/09 -- -- 10 ND ND ug/L 07/14/09 -- -- 10 ND 1.04 J ug/L 01/07/10 -- -- 10 ND ND ug/L 07/20/10 -- -- 10 ND 3.50 J ug/L 01/31/11 -- -- 10 1.91 J ND ug/L 07/18/11 -- -- 10 ND ND ug/L 01/25/12 -- -- 10 ND ND ug/L 07/18/12 -- -- 10 ND ND ug/L 01/23/13 -- -- 10 ND ND ug/L 07/17/13 -- -- 10 ND ND ug/L 01/27/14 -- -- 10 ND ND ug/L 07/16/14 -- -- 10 ND ND ug/L 01/20/15 -- -- 10 2.88 J ND ug/L 07/23/15 -- -- 10 ND 1.90 J ug/L 01/12/16 -- -- 10 4.66 B ND ug/L 08/01/16 -- -- 10 4.55 J ND ug/L 01/19/17 1.6 -- 10 3.72 B 4.80 J ug/L 07/27/17 1.6 -- 10 4.26 J 4.18 J ug/L 02/20/18 1.6 -- 10 ND ND ug/L 08/08/18 1.6 10.0 -- ND ND ug/L 01/16/19 1.6 10.0 -- ND ND ug/L 08/15/19 1.6 10.0 -- ND ND u /L 01/16/20 1.6 10.0 -- ND ND Lead ug/L 09/27/06 -- -- 10 ND -- ug/L 01/31/07 -- -- 10 ND ND ug/L 07/12/07 -- -- 10 3.3 J ND ug/L 01/17/08 -- -- 10 5.5 J ND ug/L 07/30/08 -- -- 10 ND ND ug/L 01/22/09 -- -- 10 ND ND ug/L 07/14/09 -- -- 10 7.04 B 3.4 J ug/L 01/07/10 -- -- 10 5.12 B 1.58 J ug/L 07/20/10 -- -- 10 6.4 J ND ug/L 01/31/11 -- -- 10 ND ND ug/L 07/18/11 -- -- 10 ND ND ug/L 01/25/12 -- -- 10 ND ND ug/L 07/18/12 -- -- 10 2.79 B 2.87 J ug/L 01/23/13 -- -- 10 3.07 B 1.97 J ug/L 07/17/13 -- -- 10 ND ND ug/L 01/27/14 -- -- 10 ND ND ug/L 07/16/14 -- -- 10 ND ND ug/L 01/20/15 -- -- 10 ND ND ug/L 07/23/15 -- -- 10 ND ND ug/L 01/12/16 -- -- 10 3.95 J ND ug/L 08/01/16 -- -- 10 ND ND ug/L 01/19/17 3.1 -- 10 ND ND ug/L 07/27/17 3.1 -- 10 11.2 ND ug/L 02/20/18 3.1 -- 10 ND ND ug/L 08/08/18 3.1 10.0 -- ND ND ug/L 01/16/19 3.1 10.0 -- 3.20 J ND ug/L 08/15/19 3.1 10.0 -- ND ND u /L 1 01/16/20 1 3.1 1 10.0 1 ND ND J GOLDER Page 4of21 March 2020 Project No. 19123756.100 Table 8 Summary of Detected Leachate Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Detectea monitoring Constituents/Anal tes Units Sample Date MDL MRL SWS Reporting Limit Leachate Blanks Nickel ug/L 09/27/06 -- -- 50 ND -- ug/L 01/31/07 -- -- 50 15.1 ND ug/L 07/12/07 -- -- 50 34.5 J ND ug/L 01/17/08 -- -- 50 17.4 J ND ug/L 07/30/08 -- -- 50 21.4 B 12.4 J ug/L 01/22/09 -- -- 50 20.6 J ND ug/L 07/14/09 -- -- 50 39.1 J 0.882 J ug/L 01/07/10 -- -- 50 22 J ND ug/L 07/20/10 -- -- 50 30.8 J ND ug/L 01/31/11 -- -- 50 20.9 J ND ug/L 07/18/11 -- -- 50 21.6 J ND ug/L 01/25/12 -- -- 50 20.6 J ND ug/L 07/18/12 -- -- 50 20.8 J ND ug/L 01/23/13 -- -- 50 21.3 J ND ug/L 07/17/13 -- -- 50 27 J ND ug/L 01/27/14 -- -- 50 26.3 J ND ug/L 07/16/14 -- -- 50 27.4 J ND ug/L 01/20/15 -- -- 50 61.2 ND ug/L 07/23/15 -- -- 50 38.1 J ND ug/L 01/12/16 -- -- 50 12.3 J ND ug/L 08/01/16 -- -- 50 10.7 J ND ug/L 01/19/17 2.2 -- 50 10.2 J ND ug/L 07/27/17 2.2 -- 50 18.1 J ND ug/L 02/20/18 2.2 -- 50 15.7 J ND ug/L 08/08/18 2.2 10.0 -- 21.0 ND ug/L 01/16/19 2.2 10.0 -- 29.4 ND ug/L 08/15/19 2.2 10.0 -- 43.2 ND u /L 01/16/20 2.2 10.0 -- 19.1 ND Silver ug/L 09/27/06 -- -- 10 ND -- ug/L 01/31/07 -- -- 10 ND ND ug/L 07/12/07 -- -- 10 ND ND ug/L 01/17/08 -- -- 10 ND ND ug/L 07/30/08 -- -- 10 ND ND ug/L 01/22/09 -- -- 10 ND 2.1 J ug/L 07/14/09 -- -- 10 1.11 J ND ug/L 01/07/10 -- -- 10 2.6 J ND ug/L 07/20/10 -- -- 10 ND ND ug/L 01/31/11 -- -- 10 ND ND ug/L 07/18/11 -- -- 10 ND ND ug/L 01/25/12 -- -- 10 ND ND ug/L 07/18/12 -- -- 10 ND ND ug/L 01/23/13 -- -- 10 ND ND ug/L 07/17/13 -- -- 10 ND ND ug/L 01/27/14 -- -- 10 ND ND ug/L 07/16/14 -- -- 10 2.07 J ND ug/L 01/20/15 -- -- 10 ND 3.39 J ug/L 07/23/15 -- -- 10 ND ND ug/L 01/12/16 -- -- 10 ND ND ug/L 08/01/16 -- -- 10 ND ND ug/L 01/19/17 1.9 -- 10 ND ND ug/L 07/27/17 1.9 -- 10 ND ND ug/L 02/20/18 1.9 -- 10 2.33 J ND ug/L 08/08/18 1.9 10.0 -- ND ND ug/L 01/16/19 1.9 10.0 -- ND ND ug/L 08/15/19 1.9 10.0 -- ND ND u /L 1 01/16/20 1 1.9 1 10.0 -- ND ND J GOLDER Page 5of21 March 2020 Project No. 19123756.100 Table 8 Summary of Detected Leachate Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Detectea monitoring Constituents/Anal tes Units Sample Date MDL MRL SWS Reporting Limit Leachate Blanks Thallium ug/L 09/27/06 -- -- 10 ND -- ug/L 01/31/07 -- -- 5.5 ND ND ug/L 07/12/07 -- -- 5.5 ND ND ug/L 01/17/08 -- -- 5.5 0.083 J ND ug/L 07/30/08 -- -- 5.5 ND ND ug/L 01/22/09 -- -- 5.5 ND 0.096 J ug/L 07/14/09 -- -- 5.5 ND ND ug/L 01/07/10 -- -- 5.5 ND ND ug/L 07/20/10 -- -- 5.5 2.85 J ND ug/L 01/31/11 -- -- 5.5 ND ND ug/L 07/18/11 -- -- 5.5 ND ND ug/L 01/25/12 -- -- 5.5 ND ND ug/L 07/18/12 -- -- 5.5 ND ND ug/L 01/23/13 -- -- 5.5 ND ND ug/L 07/17/13 -- -- 5.5 ND ND ug/L 01/27/14 -- -- 5.5 ND ND ug/L 07/16/14 -- -- 5.5 ND ND ug/L 01/20/15 -- -- 5.5 ND ND ug/L 07/23/15 -- -- 5.5 ND ND ug/L 01/12/16 -- -- 5.5 ND ND ug/L 08/01/16 -- -- 5.5 2.21 J ND ug/L 01/19/17 1.1 -- 5.5 9.09 J ND ug/L 07/27/17 1.1 -- 5.5 ND ND ug/L 02/20/18 1.1 -- 5.5 ND ND ug/L 08/08/18 0.550 5.00 -- ND ND ug/L 01/16/19 1.1 10.0 -- ND ND ug/L 08/15/19 1.1 10.0 -- ND ND u /L 01/16/20 1.1 10.0 -- ND ND Vanadium ug/L 09/27/06 -- -- 40 ND -- ug/L 01/31/07 -- -- 25 ND ND ug/L 07/12/07 -- -- 25 ND ND ug/L 01/17/08 -- -- 25 ND ND ug/L 07/30/08 -- -- 25 ND ND ug/L 01/22/09 -- -- 25 ND 1.4 J ug/L 07/14/09 -- -- 25 8.09 J ND ug/L 01/07/10 -- -- 25 4.77 J ND ug/L 07/20/10 -- -- 25 14.1 J ND ug/L 01/31/11 -- -- 25 ND ND ug/L 07/18/11 -- -- 25 ND ND ug/L 01/25/12 -- -- 25 ND ND ug/L 07/18/12 -- -- 25 1.95 J ND ug/L 01/23/13 -- -- 25 ND ND ug/L 07/17/13 -- -- 25 ND ND ug/L 01/27/14 -- -- 25 2.67 J ND ug/L 07/16/14 -- -- 25 ND ND ug/L 01/20/15 -- -- 25 13.1 J ND ug/L 07/23/15 -- -- 25 ND ND ug/L 01/12/16 -- -- 25 3.71 J ND ug/L 08/01/16 -- -- 25 4.98 J ND ug/L 01/19/17 1.4 -- 25 ND ND ug/L 07/27/17 1.4 -- 25 15.1 J ND ug/L 02/20/18 1.4 -- 25 6.20 J ND ug/L 08/08/18 1.4 10.0 -- ND ND ug/L 01/16/19 1.4 10.0 -- 6.29 J ND ug/L 08/15/19 1.4 10.0 -- 10.6 ND u /L 1 01/16/20 1 1.4 1 10.0 1 2.64 J ND J GOLDER Page 6of21 March 2020 Project No. 19123756.100 Table 8 Summary of Detected Leachate Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Detectea monitoring Constituents/Anal tes Units Sample Date MDL MRL SWS Reporting Limit Leachate Blanks Zinc ug/L 09/27/06 -- -- 50 94.5 ND ug/L 01 /31 /07 -- -- 10 117 1.4 ug/L 07/12/07 -- -- 10 1120 ND ug/L 01/17/08 -- -- 10 1200 ND ug/L 07/30/08 -- -- 10 51.9 ND ug/L 01/22/09 -- -- 10 104 ND ug/L 07/14/09 -- -- 10 166 ND ug/L 01/07/10 -- -- 10 247 ND ug/L 07/20/10 -- -- 10 494 ND ug/L 01/31/11 -- -- 10 83.8 ND ug/L 07/18/11 -- -- 10 50 ND ug/L 01/25/12 -- -- 10 69.2 ND ug/L 07/18/12 -- -- 10 39.2 ND ug/L 01/23/13 -- -- 10 46.6 ND ug/L 07/17/13 -- -- 10 27 ND ug/L 01/27/14 -- -- 10 44.7 ND ug/L 07/16/14 -- -- 10 22.7 ND ug/L 01/20/15 -- -- 10 72.5 ND ug/L 07/23/15 -- -- 10 24.6 ND ug/L 01/12/16 -- -- 10 51.3 ND ug/L 08/01/16 -- -- 10 12.6 ND ug/L 01/19/17 4.4 -- 10 10.3 ND ug/L 07/27/17 4.4 -- 10 684 ND ug/L 02/20/18 4.4 -- 10 263 ND ug/L 08/08/18 4.4 10.0 -- 11.9 ND ug/L 01/16/19 4.4 10.0 -- 5.61 J ND ug/L 08/15/19 4.4 10.0 -- 6.70 J ND u /L 01/16/20 4.4 10.0 -- 7.64 J ND Acetone ug/L 09/27/06 -- -- 100 ND ND ug/L 01 /31 /07 -- -- 100 20 ND ug/L 07/12/07 -- -- 100 1200 0.93 J ug/L 01/17/08 -- -- 100 660 ND ug/L 07/30/08 -- -- 100 800 ND ug/L 01/22/09 -- -- 100 1700 ND ug/L 07/14/09 -- -- 100 670 ND ug/L 01/07/10 -- -- 100 1000 ND ug/L 07/20/10 -- -- 100 2000 ND ug/L 01/31/11 -- -- 100 ND ND ug/L 07/18/11 -- -- 100 ND ND ug/L 01/25/12 -- -- 100 5.8 J ND ug/L 07/18/12 -- -- 100 13 J ND ug/L 01/23/13 -- -- 100 ND ND ug/L 07/17/13 -- -- 100 ND ND ug/L 01/27/14 -- -- 100 36 J ND ug/L 07/16/14 -- -- 100 ND ND ug/L 01/20/15 -- -- 100 660 ND ug/L 07/23/15 -- -- 100 ND ND ug/L 01/12/16 -- -- 100 ND ND ug/L 08/01/16 -- -- 100 ND ND ug/L 01/19/17 10 -- 100 150 ND ug/L 07/27/17 10 -- 100 2700 ND ug/L 02/20/18 50 -- 100 870 ND ug/L 08/08/18 10 20 -- ND ND ug/L 01/16/19 10 20 -- 200 ND ug/L 08/15/19 10 20 -- 170 ND u /L 1 01/16/20 1 10 1 20 1 ND ND J GOLDER Page 7of21 March 2020 Project No. 19123756.100 Table 8 Summary of Detected Leachate Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Detected monitoring Constituents/Anal tes Units Sample Date MDL MRL SWS Reporting Limit Leachate Blanks Benzene ug/L 09/27/06 -- -- 5 ND ND ug/L 01/31/07 -- -- 3 ND ND ug/L 07/12/07 -- -- 1 ND ND ug/L 01/17/08 -- -- 1 5.2 ND ug/L 07/30/08 -- -- 1 6 J ND ug/L 01/22/09 -- -- 1 51 ND ug/L 07/14/09 -- -- 1 25 ND ug/L 01/07/10 -- -- 1 25 ND ug/L 07/20/10 -- -- 1 30 ND ug/L 01/31/11 -- -- 1 ND ND ug/L 07/18/11 -- -- 1 ND ND ug/L 01/25/12 -- -- 1 ND ND ug/L 07/18/12 -- -- 1 ND ND ug/L 01/23/13 -- -- 1 ND ND ug/L 07/17/13 -- -- 1 ND ND ug/L 01/27/14 -- -- 1 ND ND ug/L 07/16/14 -- -- 1 ND ND ug/L 01/20/15 -- -- 1 ND ND ug/L 07/23/15 -- -- 1 ND ND ug/L 01/12/16 -- -- 1 ND ND ug/L 08/01/16 -- -- 1 ND ND ug/L 01/19/17 0.15 -- 1 ND ND ug/L 07/27/17 0.15 -- 1 12 J ND ug/L 02/20/18 0.15 -- 1 ND ND ug/L 08/08/18 0.15 1.0 -- ND ND ug/L 01/16/19 0.15 1.0 -- 0.76 J ND ug/L 08/15/19 0.15 1.0 -- ND ND u /L 01/16/20 0.15 1.0 -- ND ND Carbon disulfide ug/L 09/27/06 -- -- 100 ND ND ug/L 01 /31 /07 -- -- 100 0.9 J ND ug/L 07/12/07 -- -- 100 ND ND ug/L 01/17/08 -- -- 100 ND ND ug/L 07/30/08 -- -- 100 ND ND ug/L 01 /22/09 -- -- 100 ND ND ug/L 07/14/09 -- -- 100 ND ND ug/L 01/07/10 -- -- 100 ND ND ug/L 07/20/10 -- -- 100 ND ND ug/L 01/31/11 -- -- 100 ND ND ug/L 07/18/11 -- -- 100 ND ND ug/L 01/25/12 -- -- 100 ND ND ug/L 07/18/12 -- -- 100 ND ND ug/L 01/23/13 -- -- 100 ND ND ug/L 07/17/13 -- -- 100 ND ND ug/L 01/27/14 -- -- 100 ND ND ug/L 07/16/14 -- -- 100 ND ND ug/L 01/20/15 -- -- 100 ND ND ug/L 07/23/15 -- -- 100 ND ND ug/L 01/12/16 -- -- 100 ND ND ug/L 08/01/16 -- -- 100 ND ND ug/L 01/19/17 1.5 -- 100 ND ND ug/L 07/27/17 -- -- 100 ND ND ug/L 02/20/18 7.5 -- 100 ND ND ug/L 08/08/18 1.5 5.0 -- ND ND ug/L 01/16/19 1.5 5.0 -- ND ND ug/L 08/15/19 1.5 5.0 -- ND ND u /L 01/16/20 1.5 5.0 -- ND ND GOLDER Page 8of21 March 2020 Project No. 19123756.100 Table 8 Summary of Detected Leachate Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Detected monitoring Constituents/Anal tes Units Sample Date MDL MRL SWS Reporting Limit Leachate Blanks Chlorobenzene ug/L 09/27/06 -- -- 5 ND ND ug/L 01/31/07 -- -- 3 ND ND ug/L 07/12/07 -- -- 3 ND ND ug/L 01/17/08 -- -- 3 ND ND ug/L 07/30/08 -- -- 3 ND ND ug/L 01 /22/09 -- -- 3 ND ND ug/L 07/14/09 -- -- 3 ND ND ug/L 01/07/10 -- -- 3 2.2 J ND ug/L 07/20/10 -- -- 3 ND ND ug/L 01/31/11 -- -- 3 ND ND ug/L 07/18/11 -- -- 3 ND ND ug/L 01/25/12 -- -- 3 ND ND ug/L 07/18/12 -- -- 3 ND ND ug/L 01/23/13 -- -- 3 ND ND ug/L 07/17/13 -- -- 3 ND ND ug/L 01/27/14 -- -- 3 ND ND ug/L 07/16/14 -- -- 3 ND ND ug/L 01/20/15 -- -- 3 ND ND ug/L 07/23/15 -- -- 3 ND ND ug/L 01/12/16 -- -- 3 ND ND ug/L 08/01/16 -- -- 3 ND ND ug/L 01/19/17 0.17 -- 3 ND ND ug/L 07/27/17 0.17 -- 3 ND ND ug/L 02/20/18 0.85 -- 3 ND ND ug/L 08/08/18 0.17 1.0 -- ND ND ug/L 01/16/19 0.17 1.0 -- ND ND ug/L 08/15/19 0.17 1.0 -- ND ND u /L 01/16/20 0.17 1.0 -- ND ND 1,4-Dichlorobenzene ug/L 09/27/06 -- -- 5 ND ND ug/L 01/31/07 -- -- 3 ND ND ug/L 07/12/07 -- -- 1 8.7 ND ug/L 01/17/08 -- -- 1 ND ND ug/L 07/30/08 -- -- 1 6.5 J ND ug/L 01/22/09 -- -- 1 12 ND ug/L 07/14/09 -- -- 1 15 ND ug/L 01/07/10 -- -- 1 15 ND ug/L 07/20/10 -- -- 1 15 J ND ug/L 01/31/11 -- -- 1 ND ND ug/L 07/18/11 -- -- 1 ND ND ug/L 01/25/12 -- -- 1 ND ND ug/L 07/18/12 -- -- 1 ND ND ug/L 01/23/13 -- -- 1 ND ND ug/L 07/17/13 -- -- 1 ND ND ug/L 01/27/14 -- -- 1 ND ND ug/L 07/16/14 -- -- 1 ND ND ug/L 01/20/15 -- -- 1 ND ND ug/L 07/23/15 -- -- 1 ND ND ug/L 01/12/16 -- -- 1 ND ND ug/L 08/01/16 -- -- 1 ND ND ug/L 01/19/17 0.19 -- 1 ND ND ug/L 07/27/17 0.19 -- 1 ND ND ug/L 02/20/18 0.19 -- 1 ND ND ug/L 08/08/18 0.19 1.0 -- ND ND ug/L 01/16/19 0.19 1.0 -- 1.2 ND ug/L 08/15/19 0.19 1.0 -- 1.8 ND u /L 01/16/20 0.19 1.0 -- ND ND GOLDER Page 9of21 March 2020 Project No. 19123756.100 Table 8 Summary of Detected Leachate Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Detected monitoring Constituents/Anal tes Units Sample Date MDL MRL SWS Reporting Limit Leachate Blanks 1,1-Dichloroethane ug/L 09/27/06 -- -- 5 ND ND ug/L 01/31/07 -- -- 5 ND ND ug/L 07/12/07 -- -- 5 5.2 ND ug/L 01/17/08 -- -- 5 ND ND ug/L 07/30/08 -- -- 5 ND ND ug/L 01/22/09 -- -- 5 11 ND ug/L 07/14/09 -- -- 5 6.8 ND ug/L 01/07/10 -- -- 5 9.4 ND ug/L 07/20/10 -- -- 5 ND ND ug/L 01/31/11 -- -- 5 ND ND ug/L 07/18/11 -- -- 5 ND ND ug/L 01/25/12 -- -- 5 ND ND ug/L 07/18/12 -- -- 5 ND ND ug/L 01/23/13 -- -- 5 ND ND ug/L 07/17/13 -- -- 5 ND ND ug/L 01/27/14 -- -- 5 ND ND ug/L 07/16/14 -- -- 5 ND ND ug/L 01/20/15 -- -- 5 ND ND ug/L 07/23/15 -- -- 5 ND ND ug/L 01/12/16 -- -- 5 ND ND ug/L 08/01/16 -- -- 5 ND ND ug/L 01/19/17 0.13 -- 5 ND ND ug/L 07/27/17 0.13 -- 5 ND ND ug/L 02/20/18 0.13 -- 5 ND ND ug/L 08/08/18 0.13 1.0 -- ND ND ug/L 01/16/19 0.13 1.0 -- ND ND ug/L 08/15/19 0.13 1.0 -- ND ND u /L 01/16/20 0.13 1.0 -- ND ND 1,2-Dichloroethane ug/L 09/27/06 -- -- 5 ND ND ug/L 01/31/07 -- -- 3 ND ND ug/L 07/12/07 -- -- 1 ND ND ug/L 01/17/08 -- -- 1 ND ND ug/L 07/30/08 -- -- 1 ND ND ug/L 01/22/09 -- -- 1 24 ND ug/L 07/14/09 -- -- 1 9.5 ND ug/L 01/07/10 -- -- 1 10 ND ug/L 07/20/10 -- -- 1 ND ND ug/L 01/31/11 -- -- 1 ND ND ug/L 07/18/11 -- -- 1 ND ND ug/L 01/25/12 -- -- 1 ND ND ug/L 07/18/12 -- -- 1 ND ND ug/L 01/23/13 -- -- 1 ND ND ug/L 07/17/13 -- -- 1 ND ND ug/L 01/27/14 -- -- 1 ND ND ug/L 07/16/14 -- -- 1 ND ND ug/L 01/20/15 -- -- 1 ND ND ug/L 07/23/15 -- -- 1 ND ND ug/L 01/12/16 -- -- 1 ND ND ug/L 08/01/16 -- -- 1 ND ND ug/L 01/19/17 0.21 -- 1 ND ND ug/L 07/27/17 0.21 -- 1 ND ND ug/L 02/20/18 0.21 -- 1 ND ND ug/L 08/08/18 0.21 1.0 -- ND ND ug/L 01/16/19 0.21 1.0 -- 0.53 J ND ug/L 08/15/19 0.21 1.0 -- 0.81 J ND u /L 01/16/20 0.21 1.0 -- ND ND GOLDER Page 10of21 March 2020 Project No. 19123756.100 Table 8 Summary of Detected Leachate Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Detected monitoring Constituents/Anal tes Units Sample Date MDL MRL SWS Reporting Limit Leachate Blanks cis-1,2-Dichloroethene ug/L 09/27/06 -- -- 5 ND ND ug/L 01/31/07 -- -- 5 ND ND ug/L 07/12/07 -- -- 5 3.8 J ND ug/L 01/17/08 -- -- 5 5 ND ug/L 07/30/08 -- -- 5 4.1 J ND ug/L 01/22/09 -- -- 5 13 ND ug/L 07/14/09 -- -- 5 8.2 ND ug/L 01/07/10 -- -- 5 8.4 ND ug/L 07/20/10 -- -- 5 12 J ND ug/L 01/31/11 -- -- 5 ND ND ug/L 07/18/11 -- -- 5 ND ND ug/L 01/25/12 -- -- 5 ND ND ug/L 07/18/12 -- -- 5 ND ND ug/L 01/23/13 -- -- 5 ND ND ug/L 07/17/13 -- -- 5 ND ND ug/L 01/27/14 -- -- 5 ND ND ug/L 07/16/14 -- -- 5 ND ND ug/L 01/20/15 -- -- 5 ND ND ug/L 07/23/15 -- -- 5 ND ND ug/L 01/12/16 -- -- 5 ND ND ug/L 08/01/16 -- -- 5 ND ND ug/L 01/19/17 0.15 -- 5 ND ND ug/L 07/27/17 0.15 -- 5 ND ND ug/L 02/20/18 0.15 -- 5 ND ND ug/L 08/08/18 0.15 1.0 -- ND ND ug/L 01/16/19 0.15 1.0 -- ND ND ug/L 08/15/19 0.15 1.0 -- ND ND u /L 01/16/20 0.15 1.0 -- ND ND Ethylbenzene ug/L 09/27/06 -- -- 5 ND ND ug/L 01/31/07 -- -- 5 ND ND ug/L 07/12/07 -- -- 1 36 ND ug/L 01/17/08 -- -- 1 24 ND ug/L 07/30/08 -- -- 1 48 ND ug/L 01/22/09 -- -- 1 72 ND ug/L 07/14/09 -- -- 1 73 ND ug/L 01/07/10 -- -- 1 85 ND ug/L 07/20/10 -- -- 1 75 ND ug/L 01/31/11 -- -- 1 ND ND ug/L 07/18/11 -- -- 1 ND ND ug/L 01/25/12 -- -- 1 ND ND ug/L 07/18/12 -- -- 1 ND ND ug/L 01/23/13 -- -- 1 ND ND ug/L 07/17/13 -- -- 1 ND ND ug/L 01/27/14 -- -- 1 ND ND ug/L 07/16/14 -- -- 1 ND ND ug/L 01/20/15 -- -- 1 ND ND ug/L 07/23/15 -- -- 1 ND ND ug/L 01/12/16 -- -- 1 ND ND ug/L 08/01/16 -- -- 1 ND ND ug/L 01/19/17 0.13 -- 1 ND ND ug/L 07/27/17 0.13 -- 1 68 ND ug/L 02/20/18 0.13 -- 1 ND ND ug/L 08/08/18 0.13 1.0 -- ND ND ug/L 01/16/19 0.13 1.0 -- 1.2 ND ug/L 08/15/19 0.13 1.0 -- ND ND u /L 01/16/20 0.13 1.0 -- ND ND GOLDER Page 11of21 March 2020 Project No. 19123756.100 Table 8 Summary of Detected Leachate Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Detected monitoring Constituents/Anal tes Units Sample Date MDL MRL SWS Reporting Limit Leachate Blanks Bromomethane ug/L 09/27/06 -- -- 10 ND ND ug/L 01/31/07 -- -- 10 ND ND ug/L 07/12/07 -- -- 10 ND ND ug/L 01/17/08 -- -- 10 ND ND ug/L 07/30/08 -- -- 10 ND ND ug/L 01 /22/09 -- -- 10 ND ND ug/L 07/14/09 -- -- 10 ND ND ug/L 01/07/10 -- -- 10 ND ND ug/L 07/20/10 -- -- 10 ND ND ug/L 01/31/11 -- -- 10 ND ND ug/L 07/18/11 -- -- 10 ND ND ug/L 01/25/12 -- -- 10 5.6 J ND ug/L 07/18/12 -- -- 10 ND ND ug/L 01/23/13 -- -- 10 ND ND ug/L 07/17/13 -- -- 10 ND ND ug/L 01/27/14 -- -- 10 ND ND ug/L 07/16/14 -- -- 10 ND ND ug/L 01/20/15 -- -- 10 ND ND ug/L 07/23/15 -- -- 10 ND ND ug/L 01/12/16 -- -- 10 ND ND ug/L 08/01/16 -- -- 10 ND ND ug/L 01/19/17 0.14 -- 10 ND ND ug/L 07/27/17 0.14 -- 10 ND ND ug/L 02/20/18 0.14 -- 10 ND ND ug/L 08/08/18 0.14 1.0 -- ND ND ug/L 01/16/19 0.14 1.0 -- ND ND ug/L 08/15/19 0.14 1.0 -- ND ND u /L 01/16/20 0.14 1.0 -- ND ND Chloromethane ug/L 09/27/06 -- -- 10 ND ND ug/L 01/31/07 -- -- 5.5 1.4 ND ug/L 07/12/07 -- -- 1 ND ND ug/L 01/17/08 -- -- 1 ND ND ug/L 07/30/08 -- -- 1 ND ND ug/L 01/22/09 -- -- 1 ND ND ug/L 07/14/09 -- -- 1 ND ND ug/L 01/07/10 -- -- 1 ND ND ug/L 07/20/10 -- -- 1 ND ND ug/L 01/31/11 -- -- 1 ND ND ug/L 07/18/11 -- -- 1 ND ND ug/L 01/25/12 -- -- 1 ND ND ug/L 07/18/12 -- -- 1 ND ND ug/L 01/23/13 -- -- 1 ND ND ug/L 07/17/13 -- -- 1 ND ND ug/L 01/27/14 -- -- 1 ND ND ug/L 07/16/14 -- -- 1 ND ND ug/L 01/20/15 -- -- 1 ND ND ug/L 07/23/15 -- -- 1 ND ND ug/L 01/12/16 -- -- 1 ND ND ug/L 08/01/16 -- -- 1 ND ND ug/L 01/19/17 0.13 -- 1 ND ND ug/L 07/27/17 0.13 -- 1 ND ND ug/L 02/20/18 0.13 -- 1 ND ND ug/L 08/08/18 0.13 1.0 -- ND ND ug/L 01/16/19 0.13 1.0 -- ND ND ug/L 08/15/19 0.13 1.0 -- ND ND u /L 1 01/16/20 1 0.13 1 1.0 1 ND ND GOLDER Page 12of21 March 2020 Project No. 19123756.100 Table 8 Summary of Detected Leachate Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Detected monitoring Constituents/Anal tes Units Sample Date MDL MRL SWS Reporting Limit Leachate Blanks Methylene chloride ug/L 09/27/06 -- -- 10 ND ND ug/L 01 /31 /07 -- -- 5.5 ND 0.34 ug/L 07/12/07 -- -- 1 44 ND ug/L 01/17/08 -- -- 1 16 ND ug/L 07/30/08 -- -- 1 32 ND ug/L 01/22/09 -- -- 1 130 ND ug/L 07/14/09 -- -- 1 16 ND ug/L 01/07/10 -- -- 1 30 ND ug/L 07/20/10 -- -- 1 25 ND ug/L 01/31/11 -- -- 1 ND ND ug/L 07/18/11 -- -- 1 ND ND ug/L 01/25/12 -- -- 1 ND ND ug/L 07/18/12 -- -- 1 ND ND ug/L 01/23/13 -- -- 1 ND ND ug/L 07/17/13 -- -- 1 ND ND ug/L 01/27/14 -- -- 1 ND ND ug/L 07/16/14 -- -- 1 ND ND ug/L 01/20/15 -- -- 1 ND ND ug/L 07/23/15 -- -- 1 ND ND ug/L 01/12/16 -- -- 1 ND ND ug/L 08/01/16 -- -- 1 ND ND ug/L 01/19/17 0.23 -- 1 ND ND ug/L 07/27/17 0.23 -- 1 ND ND ug/L 02/20/18 0.23 -- 1 ND ND ug/L 08/08/18 0.23 1.0 -- ND 0.47 J ug/L 01/16/19 0.23 1.0 -- ND ND ug/L 08/15/19 0.23 1.0 -- ND ND u /L 01/16/20 0.23 1.0 -- ND 0.68 J 2-Butanone ug/L 09/27/06 -- -- 100 ND ND ug/L 01/31/07 -- -- 100 ND ND ug/L 07/12/07 -- -- 100 1900 ND ug/L 01/17/08 -- -- 100 810 ND ug/L 07/30/08 -- -- 100 1100 ND ug/L 01/22/09 -- -- 100 2400 ND ug/L 07/14/09 -- -- 100 1800 ND ug/L 01/07/10 -- -- 100 1700 ND ug/L 07/20/10 -- -- 100 2900 ND ug/L 01/31/11 -- -- 100 ND ND ug/L 07/18/11 -- -- 100 ND ND ug/L 01/25/12 -- -- 100 ND ND ug/L 07/18/12 -- -- 100 ND ND ug/L 01/23/13 -- -- 100 ND ND ug/L 07/17/13 -- -- 100 ND ND ug/L 01/27/14 -- -- 100 24 J ND ug/L 07/16/14 -- -- 100 ND ND ug/L 01/20/15 -- -- 100 790 ND ug/L 07/23/15 -- -- 100 ND ND ug/L 01/12/16 -- -- 100 ND ND ug/L 08/01/16 -- -- 100 ND ND ug/L 01/19/17 1.3 -- 100 150 ND ug/L 07/27/17 1.3 -- 100 5100 ND ug/L 02/20/18 1.3 -- 100 600 ND ug/L 08/08/18 1.3 5.0 -- ND ND ug/L 01/16/19 1.3 5.0 -- 71 ND ug/L 08/15/19 1.3 5.0 -- ND ND u /L 01/16/20 1.3 5.0 -- ND ND GOLDER Page 13of21 March 2020 Project No. 19123756.100 Table 8 Summary of Detected Leachate Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Detected monitoring Constituents/Anal tes Units Sample Date MDL MRL SWS Reporting Limit Leachate Blanks lodomethane ug/L 09/27/06 -- -- 10 ND ND ug/L 01/31/07 -- -- 10 3.1 ND ug/L 07/12/07 -- -- 10 ND ND ug/L 01/17/08 -- -- 10 ND ND ug/L 07/30/08 -- -- 10 ND ND ug/L 01 /22/09 -- -- 10 ND ND ug/L 07/14/09 -- -- 10 ND ND ug/L 01/07/10 -- -- 10 ND ND ug/L 07/20/10 -- -- 10 ND ND ug/L 01/31/11 -- -- 10 ND ND ug/L 07/18/11 -- -- 10 ND ND ug/L 01/25/12 -- -- 10 ND ND ug/L 07/18/12 -- -- 10 ND ND ug/L 01/23/13 -- -- 10 ND ND ug/L 07/17/13 -- -- 10 ND ND ug/L 01/27/14 -- -- 10 ND ND ug/L 07/16/14 -- -- 10 ND ND ug/L 01/20/15 -- -- 10 ND ND ug/L 07/23/15 -- -- 10 ND ND ug/L 01/12/16 -- -- 10 ND ND ug/L 08/01/16 -- -- 10 ND ND ug/L 01/19/17 1.7 -- 10 ND ND ug/L 07/27/17 1.7 -- 10 ND ND ug/L 02/20/18 1.7 -- 10 ND ND ug/L 08/08/18 1.7 5.0 -- ND ND ug/L 01/16/19 1.7 5.0 -- ND ND ug/L 08/15/19 1.7 5.0 -- ND ND u /L 01/16/20 1.7 5.0 -- ND ND 4-Methyl-2-pentanone ug/L 09/27/06 -- -- 100 ND ND ug/L 01/31/07 -- -- 100 ND ND ug/L 07/12/07 -- -- 100 31 J ND ug/L 01/17/08 -- -- 100 29 J ND ug/L 07/30/08 -- -- 100 65 J ND ug/L 01/22/09 -- -- 100 180 ND ug/L 07/14/09 -- -- 100 140 ND ug/L 01/07/10 -- -- 100 70 J ND ug/L 07/20/10 -- -- 100 120 ND ug/L 01/31/11 -- -- 100 ND ND ug/L 07/18/11 -- -- 100 ND ND ug/L 01/25/12 -- -- 100 ND ND ug/L 07/18/12 -- -- 100 ND ND ug/L 01/23/13 -- -- 100 ND ND ug/L 07/17/13 -- -- 100 ND ND ug/L 01/27/14 -- -- 100 1.5 J ND ug/L 07/16/14 -- -- 100 ND ND ug/L 01/20/15 -- -- 100 ND ND ug/L 07/23/15 -- -- 100 ND ND ug/L 01/12/16 -- -- 100 ND ND ug/L 08/01/16 -- -- 100 ND ND ug/L 01/19/17 1.1 -- 100 4.1 J ND ug/L 07/27/17 1.1 -- 100 88 J ND ug/L 02/20/18 1.1 -- 100 5.8 J ND ug/L 08/08/18 1.1 5.0 -- ND ND ug/L 01/16/19 1.1 5.0 -- 7.8 ND ug/L 08/15/19 1.1 5.0 -- 5.3 ND u /L 01/16/20 1.1 5.0 -- ND ND GOLDER Page 14of21 March 2020 Project No. 19123756.100 Table 8 Summary of Detected Leachate Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Detected monitoring Constituents/Anal tes Units Sample Date MDL MRL SWS Reporting Limit Leachate Blanks Styrene ug/L 09/27/06 -- -- 10 ND ND ug/L 01/31/07 -- -- 10 ND ND ug/L 07/12/07 -- -- 1 7.1 ND ug/L 01/17/08 -- -- 1 ND ND ug/L 07/30/08 -- -- 1 11 ND ug/L 01/22/09 -- -- 1 45 ND ug/L 07/14/09 -- -- 1 21 ND ug/L 01/07/10 -- -- 1 16 ND ug/L 07/20/10 -- -- 1 24 ND ug/L 01/31/11 -- -- 1 ND ND ug/L 07/18/11 -- -- 1 ND ND ug/L 01/25/12 -- -- 1 ND ND ug/L 07/18/12 -- -- 1 ND ND ug/L 01/23/13 -- -- 1 ND ND ug/L 07/17/13 -- -- 1 ND ND ug/L 01/27/14 -- -- 1 ND ND ug/L 07/16/14 -- -- 1 ND ND ug/L 01/20/15 -- -- 1 ND ND ug/L 07/23/15 -- -- 1 ND ND ug/L 01/12/16 -- -- 1 ND ND ug/L 08/01/16 -- -- 1 ND ND ug/L 01/19/17 0.11 -- 1 ND ND ug/L 07/27/17 0.11 -- 1 8.2 J ND ug/L 02/20/18 0.11 -- 1 ND ND ug/L 08/08/18 0.11 1.0 -- ND ND ug/L 01/16/19 0.11 1.0 -- ND ND ug/L 08/15/19 0.11 1.0 -- ND ND u /L 01/16/20 0.11 1.0 -- ND ND Tetrachloroethene ug/L 09/27/06 -- -- 5 ND ND ug/L 01/31/07 -- -- 3 ND ND ug/L 07/12/07 -- -- 1 ND ND ug/L 01/17/08 -- -- 1 ND ND ug/L 07/30/08 -- -- 1 ND ND ug/L 01/22/09 -- -- 1 8.1 J ND ug/L 07/14/09 -- -- 1 2.7 J ND ug/L 01/07/10 -- -- 1 2 J ND ug/L 07/20/10 -- -- 1 ND ND ug/L 01/31/11 -- -- 1 ND ND ug/L 07/18/11 -- -- 1 ND ND ug/L 01/25/12 -- -- 1 ND ND ug/L 07/18/12 -- -- 1 ND ND ug/L 01/23/13 -- -- 1 ND ND ug/L 07/17/13 -- -- 1 ND ND ug/L 01/27/14 -- -- 1 ND ND ug/L 07/16/14 -- -- 1 ND ND ug/L 01/20/15 -- -- 1 ND ND ug/L 07/23/15 -- -- 1 ND ND ug/L 01/12/16 -- -- 1 ND ND ug/L 08/01/16 -- -- 1 ND ND ug/L 01/19/17 0.17 -- 1 ND ND ug/L 07/27/17 0.17 -- 1 ND ND ug/L 02/20/18 0.85 -- 1 ND ND ug/L 08/08/18 0.17 1.0 -- ND ND ug/L 01/16/19 0.17 1.0 -- ND ND ug/L 08/15/19 0.17 1.0 -- ND ND u /L 01/16/20 0.17 1.0 -- ND ND GOLDER Page 15of21 March 2020 Project No. 19123756.100 Table 8 Summary of Detected Leachate Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Detected monitoring Constituents/Anal tes Units Sample Date MDL MRL SWS Reporting Limit Leachate Blanks Toluene ug/L 09/27/06 -- -- 5 ND ND ug/L 01/31/07 -- -- 5 ND ND ug/L 07/12/07 -- -- 1 130 0.48 J ug/L 01/17/08 -- -- 1 100 ND ug/L 07/30/08 -- -- 1 190 ND ug/L 01/22/09 -- -- 1 520 ND ug/L 07/14/09 -- -- 1 280 ND ug/L 01/07/10 -- -- 1 270 ND ug/L 07/20/10 -- -- 1 300 ND ug/L 01/31/11 -- -- 1 ND ND ug/L 07/18/11 -- -- 1 ND ND ug/L 01/25/12 -- -- 1 ND ND ug/L 07/18/12 -- -- 1 ND ND ug/L 01/23/13 -- -- 1 ND ND ug/L 07/17/13 -- -- 1 ND ND ug/L 01/27/14 -- -- 1 ND ND ug/L 07/16/14 -- -- 1 ND ND ug/L 01/20/15 -- -- 1 ND ND ug/L 07/23/15 -- -- 1 ND ND ug/L 01/12/16 -- -- 1 ND ND ug/L 08/01/16 -- -- 1 ND ND ug/L 01/19/17 0.14 -- 1 ND ND ug/L 07/27/17 0.14 -- 1 360 ND ug/L 02/20/18 0.70 -- 1 ND ND ug/L 08/08/18 0.14 1.0 -- ND ND ug/L 01/16/19 0.14 1.0 -- 0.96 J ND ug/L 08/15/19 0.14 1.0 -- ND ND u /L 01/16/20 0.14 1.0 -- ND ND Trichloroethene ug/L 09/27/06 -- -- 5 ND ND ug/L 01/31/07 -- -- 3 ND ND ug/L 07/12/07 -- -- 1 ND ND ug/L 01/17/08 -- -- 1 ND ND ug/L 07/30/08 -- -- 1 ND ND ug/L 01/22/09 -- -- 1 8.3 J ND ug/L 07/14/09 -- -- 1 2 ND ug/L 01/07/10 -- -- 1 ND ND ug/L 07/20/10 -- -- 1 ND ND ug/L 01/31/11 -- -- 1 ND ND ug/L 07/18/11 -- -- 1 ND ND ug/L 01/25/12 -- -- 1 ND ND ug/L 07/18/12 -- -- 1 ND ND ug/L 01/23/13 -- -- 1 ND ND ug/L 07/17/13 -- -- 1 ND ND ug/L 01/27/14 -- -- 1 ND ND ug/L 07/16/14 -- -- 1 ND ND ug/L 01/20/15 -- -- 1 ND ND ug/L 07/23/15 -- -- 1 ND ND ug/L 01/12/16 -- -- 1 ND ND ug/L 08/01/16 -- -- 1 ND ND ug/L 01/19/17 0.15 -- 1 ND ND ug/L 07/27/17 0.15 -- 1 ND ND ug/L 02/20/18 0.15 -- 1 ND ND ug/L 08/08/18 0.15 1.0 -- ND ND ug/L 01/16/19 0.15 1.0 -- ND ND ug/L 08/15/19 0.15 1.0 -- ND ND u /L 01/16/20 0.15 1.0 -- ND ND GOLDER Page 16of21 March 2020 Project No. 19123756.100 Table 8 Summary of Detected Leachate Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Detected monitoring Constituents/Anal tes Units Sample Date MDL MRL SWS Reporting Limit Leachate Blanks Vinyl chloride ug/L 09/27/06 -- -- 10 ND ND ug/L 01/31/07 -- -- 5.5 ND ND ug/L 07/12/07 -- -- 1 ND ND ug/L 01/17/08 -- -- 1 ND ND ug/L 07/30/08 -- -- 1 ND ND ug/L 01/22/09 -- -- 1 5.8 J ND ug/L 07/14/09 -- -- 1 5.4 ND ug/L 01/07/10 -- -- 1 6.7 ND ug/L 07/20/10 -- -- 1 ND ND ug/L 01/31/11 -- -- 1 ND ND ug/L 07/18/11 -- -- 1 ND ND ug/L 01/25/12 -- -- 1 ND ND ug/L 07/18/12 -- -- 1 ND ND ug/L 01/23/13 -- -- 1 ND ND ug/L 07/17/13 -- -- 1 ND ND ug/L 01/27/14 -- -- 1 ND ND ug/L 07/16/14 -- -- 1 ND ND ug/L 01/20/15 -- -- 1 ND ND ug/L 07/23/15 -- -- 1 ND ND ug/L 01/12/16 -- -- 1 ND ND ug/L 08/01/16 -- -- 1 ND ND ug/L 01/19/17 0.32 -- 1 ND ND ug/L 07/27/17 0.32 -- 1 ND ND ug/L 02/20/18 0.32 -- 1 ND ND ug/L 08/08/18 0.32 1.0 -- ND ND ug/L 01/16/19 0.32 1.0 -- ND ND ug/L 08/15/19 0.32 1.0 -- ND ND u /L 01/16/20 0.32 1.0 -- ND ND Xylenes (total) ug/L 09/27/06 -- -- 5 ND ND ug/L 01/31/07 -- -- 4 ND ND ug/L 07/12/07 -- -- 4 93 ND ug/L 01/17/08 -- -- 5 69 ND ug/L 07/30/08 -- -- 5 100 ND ug/L 01/22/09 -- -- 5 210 ND ug/L 07/14/09 -- -- 5 180 ND ug/L 01/07/10 -- -- 5 220 ND ug/L 07/20/10 -- -- 5 170 ND ug/L 01/31/11 -- -- 5 ND ND ug/L 07/18/11 -- -- 5 ND ND ug/L 01/25/12 -- -- 5 ND ND ug/L 07/18/12 -- -- 5 ND ND ug/L 01/23/13 -- -- 5 ND ND ug/L 07/17/13 -- -- 5 ND ND ug/L 01/27/14 -- -- 5 ND ND ug/L 07/16/14 -- -- 5 ND ND ug/L 01/20/15 -- -- 5 8.6 J ND ug/L 07/23/15 -- -- 5 ND ND ug/L 01/12/16 -- -- 5 ND ND ug/L 08/01/16 -- -- 5 ND ND ug/L 01/19/17 0.45 -- 5 ND ND ug/L 07/27/17 0.45 -- 5 74 ND ug/L 02/20/18 0.45 -- 5 ND ND ug/L 08/08/18 0.45 3.0 -- ND ND ug/L 01/16/19 0.45 3.0 -- 5.4 ND ug/L 08/15/19 0.45 3.0 -- 0.87 J ND u /L 01/16/20 0.45 3.0 -- ND ND 1,4-Dioxane u /L 01/16/20 4.0 1 10.0 1 120 ND GOLDER Page 17of21 March 2020 Project No. 19123756.100 Table 8 Summary of Detected Leachate Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Detectea monitoring Constituents/Anal tes Units Sample Date MDL MRL SWS Reporting Limit Leachate Blanks Nitrate mg/L 09/27/06 -- -- -- 32.1 ND mg/L 01 /31 /07 -- -- -- 18.2 ND mg/L 07/12/07 -- -- -- 0.013 ND mg/L 01/17/08 -- -- 10 4.1 J 0.006 J mg/L 07/30/08 -- -- 10 ND ND mg/L 01 /22/09 -- -- 10 ND ND mg/L 07/14/09 -- -- 10 0.033 J ND mg/L 01/07/10 -- -- 10 0.072 J ND mg/L 07/20/10 -- -- 10 0.099 J ND mg/L 01/31/11 -- -- 10 6 J ND mg/L 07/18/11 -- -- 10 ND ND mg/L 01/25/12 -- -- 10 2 J ND mg/L 07/18/12 -- -- 10 2.6 J ND mg/L 01/23/13 -- -- 10 21 ND mg/L 07/17/13 -- -- 10 ND ND mg/L 01/27/14 -- -- 10 7 J ND mg/L 07/16/14 -- -- 10 0.1 J ND mg/L 01/20/15 -- -- 10 0.17 J ND mg/L 07/23/15 -- -- 10 ND ND mg/L 01/12/16 -- -- 10 0.2 J ND mg/L 08/01/16 -- -- 10 ND ND mg/L 01/19/17 0.025 -- 10 0.71 J ND mg/L 07/27/17 0.025 -- 10 0.11 J ND mg/L 02/20/18 0.025 -- 10 0.065 J ND mg/L 08/08/18 0.025 0.1 -- ND ND mg/L 01/16/19 0.025 0.1 -- 0.056 J ND mg/L 08/15/19 0.025 0.1 -- ND ND m /L 01/16/20 0.025 0.1 -- 0.074 J ND Sulfate mg/L 09/27/06 -- -- -- 33 ND mg/L 01 /31 /07 -- -- -- 7.8 ND mg/L 07/12/07 -- -- 250 14 J ND mg/L 01/17/08 -- -- 250 90 J ND mg/L 07/30/08 -- -- 250 2.7 J ND mg/L 01 /22/09 -- -- 250 ND ND mg/L 07/14/09 -- -- 250 2.4 J ND mg/L 01/07/10 -- -- 250 1.7 J ND mg/L 07/20/10 -- -- 250 3.8 J ND mg/L 01/31/11 -- -- 250 11 J ND mg/L 07/18/11 -- -- 250 10 J ND mg/L 01/25/12 -- -- 250 6.6 J ND mg/L 07/18/12 -- -- 250 8.8 J ND mg/L 01/23/13 -- -- 250 8.6 J ND mg/L 07/17/13 -- -- 250 18 J 1.5 J mg/L 01/27/14 -- -- 250 25 J ND mg/L 07/16/14 -- -- 250 22 J ND mg/L 01/20/15 -- -- 250 14 J ND mg/L 07/23/15 -- -- 250 28 J ND mg/L 01/12/16 -- -- 250 12 J ND mg/L 08/01/16 -- -- 250 9.4 J ND mg/L 01/19/17 2.9 -- 250 20 J ND mg/L 07/27/17 2.9 -- 250 32 J ND mg/L 02/20/18 2.9 -- 250 65 J ND mg/L 08/08/18 2.9 5 -- 38 ND mg/L 01/16/19 2.9 5 -- 9.2 ND mg/L 08/15/19 2.9 5 -- 22 ND m /L 1 01/16/20 1 2.9 1 5 1 52 ND J GOLDER Page 18of21 March 2020 Project No. 19123756.100 Table 8 Summary of Detected Leachate Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Detected monitoring Constituents/Anal tes Units Sample Date MDL MRL SWS Reporting Limit Leachate Blanks Biochemical Oxygen Demand mg/L 09/27/06 -- -- -- 36 ND mg/L 01 /31 /07 -- -- -- 41 ND mg/L 07/12/07 -- -- -- 980 ND mg/L 01/17/08 -- -- -- 600 ND mg/L 07/30/08 -- -- -- 130 ND mg/L 01 /22/09 -- -- -- 150 ND mg/L 07/14/09 -- -- -- 100 ND mg/L 01/07/10 -- -- -- 250 ND mg/L 07/20/10 -- -- -- 430 ND mg/L 01/31/11 -- -- -- 9 ND mg/L 07/18/11 -- -- -- 14 ND mg/L 01/25/12 -- -- -- 13 ND mg/L 07/18/12 -- -- -- 15 ND mg/L 01/23/13 -- -- -- 14 ND mg/L 07/17/13 -- -- -- 16 ND mg/L 01/27/14 -- -- -- 21 ND mg/L 07/16/14 -- -- -- 17 ND mg/L 01/20/15 -- -- -- 100 ND mg/L 07/23/15 -- -- -- 10 ND mg/L 01/12/16 -- -- -- 42 ND mg/L 08/01/16 -- -- -- 11 ND mg/L 01/19/17 2 -- -- 20 ND mg/L 07/27/17 2 -- -- >2 ND mg/L 02/20/18 2 -- -- 25 ND mg/L 08/08/18 2 2 -- 17 ND mg/L 01/16/19 2 2 -- 36 ND mg/L 08/15/19 2 2 -- 43 ND m /L 01/16/20 2 2 -- 27 ND Chemical Oxygen Demand mg/L 09/27/06 -- -- -- 225 ND mg/L 01 /31 /07 -- -- -- 75 ND mg/L 07/12/07 -- -- -- 1600 ND mg/L 01/17/08 -- -- -- 960 ND mg/L 07/30/08 -- -- -- 480 ND mg/L 01 /22/09 -- -- -- 550 ND mg/L 07/14/09 -- -- -- 560 ND mg/L 01/07/10 -- -- -- 810 3.9 J mg/L 07/20/10 -- -- -- 990 ND mg/L 01 /31 /11 -- -- -- 180 ND mg/L 07/18/11 -- -- -- 200 ND mg/L 01/25/12 -- -- -- 180 ND mg/L 07/18/12 -- -- -- 210 ND mg/L 01/23/13 -- -- -- 180 ND mg/L 07/17/13 -- -- -- 200 ND mg/L 01/27/14 -- -- -- 290 ND mg/L 07/16/14 -- -- -- 210 ND mg/L 01/20/15 -- -- -- 760 ND mg/L 07/23/15 -- -- -- 300 ND mg/L 01/12/16 -- -- -- 220 ND mg/L 08/01/16 -- -- -- 130 ND mg/L 01/19/17 10 -- -- 120 ND mg/L 07/27/17 10 -- -- 3100 ND mg/L 02/20/18 10 -- -- 500 ND mg/L 08/08/18 10 10 -- 190 ND mg/L 01 /16/19 10 10 -- 380 ND mg/L 08/15/19 10 10 -- 560 ND m /L 01/16/20 10 10 -- 310 ND GOLDER Page 19of21 March 2020 Project No. 19123756.100 Table 8 Summary of Detected Leachate Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Detectea monitoring Constituents/Anal tes Units Sample Date MDL MRL SWS Reporting Limit Leachate Blanks Phosphorus mg/L 09/27/06 -- -- -- 0.09 ND mg/L 01 /31 /07 -- -- -- 0.044 ND mg/L 07/12/07 -- -- -- 0.39 ND mg/L 01/17/08 -- -- -- 0.5 ND mg/L 07/30/08 -- -- -- 0.53 ND mg/L 01 /22/09 -- -- -- 0.23 ND mg/L 07/14/09 -- -- -- 0.72 ND mg/L 01/07/10 -- -- -- 0.54 ND mg/L 07/20/10 -- -- -- 1.3 ND mg/L 01/31/11 -- -- -- 0.13 ND mg/L 07/18/11 -- -- -- 0.17 ND mg/L 01/25/12 -- -- -- 0.15 ND mg/L 07/18/12 -- -- -- 0.17 ND mg/L 01/23/13 -- -- -- 0.16 ND mg/L 07/17/13 -- -- -- 0.24 ND mg/L 01/27/14 -- -- -- 0.27 ND mg/L 07/16/14 -- -- -- 0.22 ND mg/L 01/20/15 -- -- -- 0.86 ND mg/L 07/23/15 -- -- -- 0.15 ND mg/L 01/12/16 -- -- -- 0.41 ND mg/L 08/01/16 -- -- -- 0.21 ND mg/L 01/19/17 0.025 -- -- 0.095 J ND mg/L 07/27/17 0.025 -- -- 1.4 ND mg/L 02/20/18 0.025 -- -- 1 ND mg/L 08/08/18 0.025 0.1 -- 0.13 ND mg/L 01/16/19 0.025 0.1 -- 0.25 ND mg/L 08/15/19 0.025 0.1 -- 0.29 ND m /L 01/16/20 0.025 0.1 -- 0.20 ND pH (field) S.U. 09/27/06 -- -- -- 7.7 S. U . 01 /31 /07 -- -- -- 7.7 -- S.U. 07/12/07 -- -- -- 6.54 -- S.U. 01/17/08 -- -- -- 6.55 -- S.U. 07/30/08 -- -- -- 6.58 S. U. 01 /22/09 -- -- -- 8.23 -- S.U. 07/14/09 -- -- -- 8.33 -- S.U. 01/07/10 -- -- -- 7.09 -- S.U. 07/20/10 -- -- -- 6.9 -- S.U. 01/31/11 -- -- -- 8.3 -- S.U. 07/18/11 -- -- -- 8.53 -- S.U. 01/25/12 -- -- -- 7.96 -- S.U. 07/18/12 -- -- -- 6.16 -- S.U. 01/22/13 -- -- -- 8.32 -- S.U. 07/17/13 -- -- -- 8.26 -- S.U. 01/28/14 -- -- -- 8.75 -- S.U. 07/16/14 -- -- -- 8.82 -- S.U. 01/20/15 -- -- -- 7.9 -- S.U. 07/23/15 -- -- -- 8.55 -- S.U. 01/12/16 -- -- -- 9.1 -- S.U. 08/01/16 -- -- -- 7.88 -- S.U. 01/19/17 -- -- -- 7.39 -- S.U. 07/27/17 -- -- -- 6.29 -- S.U. 02/20/18 -- -- -- 8.34 -- S.U. 08/08/18 -- -- -- 8.27 -- S.U. 01/16/19 -- -- -- 7.93 -- S.U. 08/15/19 -- -- -- 8.77 -- S.U. 01/16/20 -- -- -- 7.55 -- J GOLDER Page 20of21 March 2020 Project No. 19123756.100 Table 8 Summary of Detected Leachate Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Detectea monitoring Constituents/Anal tes Units Sample Date MDL MRL SWS Reporting Limit Leachate Blanks Specific Conductance (field) PS/Cm 09/27/06 -- -- -- 2170 -- PS/Cm 01 /31 /07 -- -- -- 3000 -- PS/Cm 07/12/07 -- -- -- 4220 -- PS/Cm 01/17/08 -- -- -- 1890 -- PS/Cm 07/30/08 -- -- -- 4130 -- PS/cm 01/22/09 -- -- -- 2105 -- PS/cm 07/14/09 -- -- -- 1751 -- PS/Cm 01/07/10 -- -- -- 3294 -- PS/Cm 07/20/10 -- -- -- 5706 -- PS/Cm 01/31/11 -- -- -- 2112 -- PS/Cm 07/18/11 -- -- -- 1980 -- PS/cm 01/25/12 -- -- -- 2158 -- PS/cm 07/18/12 -- -- -- 1911 -- PS/Cm 01/22/13 -- -- -- 2650 -- PS/Cm 07/17/13 -- -- -- 2180 -- PS/Cm 01/28/14 -- -- -- 3142 -- PS/Cm 07/16/14 -- -- -- 2345 -- PS/cm 01/20/15 -- -- -- 5480 -- PS/cm 07/23/15 -- -- -- 2840 -- PS/Cm 01/12/16 -- -- -- 1799 -- PS/Cm 08/01/16 -- -- -- 1280 -- PS/Cm 01/19/17 -- -- -- 1260 -- PS/Cm 07/27/17 -- -- -- 3445 -- PS/cm 02/20/18 -- -- -- 1846 -- PS/cm 08/08/18 -- -- -- 2186 -- PS/Cm 01/16/19 -- -- -- 4610 -- PS/Cm 08/15/19 -- -- -- 2747 -- PS/Cm 01/16/20 -- -- -- 2384 -- Temperature (field) °C 09/27/06 -- -- -- 22.2 -- °C 01 /31 /07 -- -- -- 9.5 -- °C 07/12/07 -- -- -- 23.39 -- °C 01/17/08 -- -- -- 7.88 -- °C 07/30/08 -- -- -- 22.84 -- °C 01 /22/09 -- -- -- 0.78 -- °C 07/14/09 -- -- -- 25 -- °C 01/07/10 -- -- -- 8.29 -- °C 07/20/10 -- -- -- 21.53 -- °C 01/31/11 -- -- -- 4.05 -- °C 07/18/11 -- -- -- 27.79 -- °C 01/25/12 -- -- -- 14.3 -- °C 07/18/12 -- -- -- 29.51 -- °C 01/22/13 -- -- -- 5.6 -- °C 07/17/13 -- -- -- 28.25 -- °C 01/28/14 -- -- -- 0.4 -- °C 07/16/14 -- -- -- 26.9 -- °C 01/20/15 -- -- -- 14.9 -- °C 07/23/15 -- -- -- 26.8 -- °C 01/12/16 -- -- -- 3 -- °C 08/01/16 -- -- -- 25.7 -- °C 01/19/17 -- -- -- 10.7 -- °C 07/27/17 -- -- -- 27.8 -- °C 02/20/18 -- -- -- 15.02 -- °C 08/08/18 -- -- -- 27.6 -- °C 01/16/19 -- -- -- 16.3 -- °C 08/15/19 -- -- -- 26.7 -- °C 01/16/20 -- -- -- 19.0 -- Notes: mg/L = milligrams per liter ug/L = micrograms per liter mV = millivolts S.U. = Standard Units ND = Not detected at the stated reporting limit pS/cm = microsiemens per centimeter -- = no data B = blank -qualified result J = Prior to the August 2018 event, J flags are estimated values below the SWS Reporting limit Blanks = field, trip and method blanks SWS Reportinq Limit = NCPQL prior to 2007 and NCSWSL starting in 01/31/07 MDL = Laboratory method detection limit MRL = Laboratory method reporting limit 1) L2 is no longer sampled as representative samples cannot be collected from the pipe. 2) The following dilutions were noted for the January 2020 event: antimony and thallium (10x), (10x), and 1,4-dioxane (5x) Beginning with the VOCs except 1,4-dioxane J GOLDER Page21 of21 March 2020 Project No. 19123756.100 Table 9 Summary of Detected Constituents in Groundwater for the C&D Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring SWS Reporting C&D Monitoring Wells Constituents/Analytes Units Sample Date MDL MRL Limit Blanks U radwnt MW-17 Down mdienl MW-18 MW-i8R MW-19 Antimony uWL 1114/05 - - - ND ND - ND - IMAC = 1 uq/L uWL 12/12/05 - - - ND ND - ND - EPA MCL=6 uWL uWL 12/13/05 - - - ND ND - ND - uWL 12/22/05 - - ND ND - ND uq/L 12/30/05 - - 30 ND ND - ND ND uWL M6106 - - 30 - ND uWL 1/31107 - - 6 ND ND - ND ND uWL 7/12107 - - 6 ND ND ND ND uWL 816107 - - 6 -- ND ND uWL 1/17108 - - 6 ND -- ND ND uWL 7/30/2008 - - 6 ND -- ND ND ND WL u2/09 01/2 - - 6 ND -- ND ND ND uWL 07/14/09 - - 6 ND -- ND ND ND WL u 01/07/10 - - 6 ND -- ND ND ND uWL 0]/20/10 - - 6 ND -- ND ND ND WL u 01/31/11 - - 6 ND -- ND ND ND WL u 07/18/11 - - 6 ND -- ND ND ND WL u 07/19/12 - - 6 ND -- ND ND ND WL u 01/30/13 - - 6 ND -- ND ND 0.35 J WL u 07/15/13 - - 6 ND -- ND ND ND WL u 01/27/14 - - 6 0.422 J -- 1.31 J ND ND WL u 07/14/14 - 6 ND -- ND ND ND WL u 01/20/15 0.22 - 6 ND -- ND ND uWL 07/23/15 0.22 - 6 0.399 J -- ND ND ND uWL 01/12/16 0.22 - 6 0.4]8 B -- 0.268 B ND 0.5]] J WL u 08/01/16 0.22 - 6 ND -- ND ND ND uWL 01/17/17 0.37 - 6 ND -- ND ND ND uWL ]/2 06/17 0.37 - 6 ND -- ND ND ND uWL 02/20/18 0.37 6 ND -- ND ND uWL 08/08/18 1.85 5.00 - ND -- ND ND ND WL u 01/15/19 1.85 5.00 - ND -- ND ND ND uWL u L 08/15/19 01/13/20 0.74 0.74 2.00 2.00 - ND ND -- ND ND ND ND ND ND Arsenic uq/L 11/4/05 - - - ND ND - ND - NC 2L = 10 uq/l uWL 12/12/05 - - - ND ND - ND - EPA MCL = 10 uq/L uq/L 12/13/05 - - - ND ND - ND - uWL 12/22/05 - - ND ND - ND uq/L 12/30/05 - - 10 ND ND - ND ND uWL 9126106 - - 10 ND ND - ND ND uWL 1/31107 - - 10 4.0 B 2A B - ND 3.0 J uq/L 7112107 - - 10 ND ND ND ND uq/L 816107 - - 10 -- 5.2 J ND uq/L 1117/08 - - 10 ND -- ND ND ND uWL 07/30/08 - - 10 4.2 B -- ND ND 3.2 J uWL 01/22/09 - - 10 ND -- ND ND ND uWL 07/14/09 - - 10 ND -- ND ND 3.84 J uWL 01 to /10 - - 10 ND -- ND ND ND uWL 0]/20/10 - - 10 ND -- ND ND ND uWL 01/31/11 - - 10 ND -- ND ND 438 J uWL 0]/18/11 - - 10 3.94 J -- 3.45 J 4.56 J ND uWL 01/25/12 - - 10 ND -- ND ND ND uWL 0]/19/12 - - 10 ND -- 3.93 J 6.09 J ND uWL 01/30/13 - - 10 ND -- ND ND 2 98 J uWL 0]/15/13 - - 10 ND -- ND ND ND uWL 01/21/14 - - 10 ND -- ND ND ND uWL 07/14/14 - 10 ND -- ND ND ND uWL 01/20/15 5.4 - 10 ND -- ND ND ND uWL 0]/23/15 6.8 - 10 ND -- ND ND ND uWL 01/12/16 6.8 - 10 ND -- ND ND ND uWL 08/01/16 6.8 - 10 ND -- ND ND ND uWL 01/1]/17 6.8 - 10 ND -- ND ND ND uWL 07//17 6.8 - 10 ND -- ND ND ND uWL 02/20/18 6.8 10 ND -- ND ND ND uWL 08/08/18 7.6 10.0 - ND -- ND ND ND uWL 01/15/19 ].6 10.0 - ND -- ND ND ND uWL uWL 08/15/19 1 01/13/20 ].6 7.6 10.0 10.0 - 1 ND ND -- I ND ND ND ND ND ND Barium uq/L 1114105 - - - ND ND - ND - NC 2L = ]00 uq/L uq/L 12/12/05 - - - ND ND - ND - EPA MCL=2000 uq/L uq/L 12/13I05 - - - ND ND - ND - uq/L 12/22/05 - - ND ND - ND uq/L 12/30/05 - - 500 ND ND - ND ND uq/L 9/26106 - - 500 ND ND - ND ND uq/L 1/31107 - - 100 9.10 J 66.8 - 55.5 J 0.40 J uglL ]/12/0] - - 100 12.8 J 41.9 J 55.9 J ND uq/L 81610] - - 100 -- 65.4 B 1].4 J uq/L 1117/08 - - 100 9.90 J -- 80.2 J 57.9 J ND uWL 07/30/08 00 100 9.40 ]].1 J 655 J ND u 02/09 SAO J 71.5 J 9.2 5J ND co0]/14/09 100 id.f J Ju ND uW 01/07/10 69.9 J 157 0.481 J uWL 0]/20/10 - - 100 9.14 J -- 6].0 J 58.8 J ND WL u 01/31/11 - - 100 10.4 J -- 95.4 J 62.3 J ND uWL 07/18/11 - - 100 11.0 J -- 92.5 J 64.4 J ND WL u 01/25/12 - - 100 11.3 J -- 115 64.9 J ND uWL 07/19/12 - - 100 10.] J -- 84.] J 58.] J ND co u 01/30/13 - - 100 18.6 J -- 160 64.4 J 1.24 J uWL 07/15/13 - - 100 16.5 J -- 101 64.] J 1.]5 J uWL 01/21/14 - - 100 16.9 J -- 8].] J 60.4 J 1.18 J uWL 07/14/14 - 100 18.5 J -- ]6.2 J 60.3 J ND uco 01/20/15 1 - 100 15.] J -- 126 86.2 J 1.01 J uWL 0]/23/15 1 - 100 17.0 J -- 90.6 J 86.3 J ND uWL 01/12/16 1 - 100 1].6 J -- 120 5].1 J 1.94 J uWL 08/01/16 1 - 100 16.9 J -- ]2.6 J 68.6 J ND uWL 01/17/17 1 - 100 1].] J -- 136 69.3 J ND uWL 0]/26/17 1 - 100 16.4 J -- 99.] J ]2..4 J 2,03 J uW 020/18 1 100 16.9 J 118 644 J ND u 08/08/18 1.1 1. 105 654 3.31 J u 01/15/19 1 00 2 1co 50 ]1.8 ND uWL u L 08/15/19 01/13/20 1 1.1 10. 10.0 21 22.4 216 214 IM 60.8 ND 1.11 J G GOLDER Pagel of March 2020 Project No. 19123756. 100 Table 9 Summary of Detected Constituents in Groundwater for the C&D Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring SWS Reporting C&D Monitoring Well. C... thuent./Analyte. Unit. Sample Date MDL MRL Limit Blanks U redient MW-17 Down mdienl MW-18 MW-i8R MW-19 Beryllium uq/L 1114/05 - - - ND ND - 3.7 - IMAC = 4 ug/L ug/L 12/12/05 - - - ND 5.6 - 2.7 - EPAMCL =4 up/L ug/L 12/13/05 - - - ND 6.5 - ND - uq/L 12/22/05 - - ND 2.4 - 3.] uq/L 12/30/05 - - 2 ND 2.3 - 3.6 ND uq/L 9126/0 - - 2 - ND uq/L 1131/0] - - 1 ND 0.70 J - ND ND uq/L 7112107 - - 1 ND ND ND ND uq/L 816107 - - 1 -- ND ND uq/L 1/17108 - - 1 ND -- ND ND ND uq/L 07/30/08 - - 1 ND -- ND ND ND uq/L 01/22/09 - - 1 ND -- 0.10 J 0.20 J ND uq/L 07/14/09 - - 1 ND -- 0.142 J 0.280 J ND uq/L 01/07/10 - - 1 ND -- 0.115 J 1.59 ND uq/L 0]/20/10 - - 1 ND -- ND 0.302 J ND uq/L 01/31/11 - - 1 ND -- 0.103 J 0.234 J ND uq/L 07/18/11 - - 1 ND -- ND 0.234 J ND uq/L 01/25/12 - - 1 ND -- 0.101 J 0.182 J ND uq/L 07/19/12 - - 1 ND -- ND 0.197 J ND uq/L 01/30/13 - - 1 ND -- 0.103 J 0.162 J ND ug/L 07/15/13 - - 1 ND -- ND 0.226 J ND ug/L 01/27/14 - - 1 ND -- ND 0.144 J ND ug/L 07/14/14 - 1 ND -- ND 0209.J ND ug/L 01/20/15 0.1 - 1 ND -- ND 0.168 J ND ug/L 07/23/15 0.1 - 1 ND -- ND 0.149 J ND uglL 01/12116 0.1 - 1 ND -- ND 0.143 J ND ug/L 08/01/16 0.1 - 1 0.111 J -- 0.103 J 0.24] J 0.170 J ug/L 01/17/17 0.1 - 1 ND -- ND ND ND ug/L 07/26/17 0.13 - 1 ND -- ND ND ND ug/L 02/20/16 0.13 1 ND -- ND 0201.J ND ug/L 08/08/16 0.16 7.00 - ND -- ND 0.186 J ND ug/L 01/15/19 0.16 7.00 - ND -- ND 0.248 J ND ug/L u L 08/15/19 01/13/20 0.16 0.16 1.00 IM - ND ND -- ND ND ND ND ND ND Cadmium ug/L 11/4/05 - - - ND ND - ND - NC 2L = 2 ug/L ug/L 12/12/05 - - - ND ND - ND - EPA MCL =5 up/L ugIL 12/13/05 - - - ND ND - ND - ug/L 12/22/05 - - ND ND - ND ug/L 12/30/05 - - 1 ND ND - ND ND ug/L 9/26/0fi - - 1 ND ND - ND ND ug/L 1/31/0] - - 1 ND ND - ND ND ug/L 7/12/07 - - 1 ND ND ND ND ug/L 816107 - - 1 -- ND ND ug/L 1/17/08 - - 1 ND -- ND ND ND ug/L 07/30/08 - - 1 0A0 B -- ND ND 0.7 J ug/L 01/22/09 - - 1 ND -- ND ND ND ug/L 07/14/09 - - 1 0.214 J -- ND 0.148 J ND ug/L 01/07/10 - - 1 0.260 J -- 0.144 J 0.385 J ND ug/L 07/20/10 - - 1 ND -- ND ND ND ug/L 01/31/11 - - 1 ND -- ND ND ND ug/L 07/18/11 - - 1 ND -- ND ND ND uq/L 01/25/12 - - 1 ND -- ND ND ND uq/L 07/19/12 - - 1 ND -- ND ND ND uq/L 01/30/13 - - 1 ND -- ND ND ND uq/L 07/15/13 - - 1 ND -- ND ND ND uq/L 01/21/14 - - 1 ND -- ND ND ND uq/L 07/14/14 - 1 ND -- ND ND ND uq/L MOM 0.36 - 1 ND -- ND ND ND uq/L 0]/23/15 0.36 - 1 ND -- ND ND ND uq/L 01/12/16 0.36 - 1 ND -- ND ND ND uq/L 08/01/16 0.36 - 1 ND -- ND ND ND uq/L 01/17/17 0.36 - 1 ND -- ND ND ND uq/L 0]/26/17 0.36 - 1 ND -- ND ND ND uq/L 02/20/18 0.36 1 ND -- ND ND ND uq/L 08/08/18 0.36 1.00 - ND -- ND ND ND uq/L 01/15/19 0.36 1.00 - ND -- ND ND ND UWL u L 08/15/19 01/13/20 0.36 1 0.36 1.00 1.00 - 1 ND ND -- I ND ND ND ND ND ND Chromium uq/L 11/4105 - - - ND ND - 24 - NC2L=10 ug/L ug/L 12/12/05 - - - ND ]i - 26 - EPA MCL = 100 uq/L uq/L 12/13/05 - - - ND ND - ND - uq/L 12/22/05 - - ND 32 - 35 uq/L 12/30/05 - - 10 ND 29 - 15 ND uq/L 9/26/06 - - 10 ND ND - ND ND uq/L 1131/0] - - 10 ND I J - ND ND ug/L 7/1210] - - 70 ]9.2 11.6 3.0 J ND uq/L 8/6/01 - - 10 -- ND ND uq/L 1/1]/08 - - 10 ND -- 2.2 J ND ND uq/L 07/30/08 - - 10 ND -- 4.6 B ND 14.5 uq/L 01/22/09 - - 10 ND -- ND ND ND uq/L 07/14/09 - - 10 ND -- 2.32 J ND ND up/L 01/0]/10 - - 70 ND -- ND 10.5 ND uq/L 0]/20/10 - - 10 ND -- ND ND ND uq/L 01/31/11 - - 10 ND -- ND ND ND uq/L 0]/18/11 - - 10 ND -- ND ND ND uq/L 01/25/12 - - 10 ND -- ND ND ND uq/L O1/19/12 - - 10 ND -- ND ND ND uq/L 01/30/13 - - 10 ND -- ND ND 1.5 J uq/L 0]/15/13 - - 10 ND -- ND ND ND uq/L 01/21/14 - - 10 ND -- ND ND ND uq/L 07/14/14 - 10 ND -- ND ND ND uq/L 01/20/15 1.4 - 10 ND -- ND ND ND uq/L 0]/23/15 1.4 - 10 ND -- ND ND ND uq/L 01/12/16 1.4 - 10 ND -- ND ND ND uq/L 08/01/16 1.4 - 10 ND -- ND ND ND uq/L 01/1 ]/17 1.4 - 10 ND -- ND ND ND uq/L 07/2li/1] 1.4 - 10 ND -- ND ND ND uq/L 02/20/18 1.4 10 ND -- ND ND ND uq/L 08/08/18 1.4 10.0 - ND -- ND ND 1.66 J uq/L 01/15/19 1.6 10.0 - ND -- ND ND ND uWL u L 08/15/19 01/13/20 1.6 1.4 10.0 10.0 - ND ND -- ND ND ND 1.42 J ND ND G GOLDER Page 2 of March 2020 Project No. 19123756. 100 Table 9 Summary of Detected Constituents in Groundwater for the C&D Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring SWS Reporting C&D Monitoring Wells Constituents/Analytes Units Sample Date MDL MRL Limit Blanks U .client MW-17 Down mdienl MW-18 MW-i8R MW-19 Cobalt uWL 1114105 - - - NO NO - NO - IMAC = 1 ug/L ug/L 12/12/05 - - - NO 14 - ND - NoEPA MCL ug/L 12/13/05 - - - NO 12 - ND - uglL 12/22/05 - - NO ND - 13 ug/L 12/30/05 - - 10 NO 10 - 10 NO uq/L 912610 - - 10 - NO ug/L 1/31/0] - - 10 NO 8.6 J - ND NO uglL ]/12/0] - - 10 ND 3.0 J ND NO ug/L 816107 - - 10 -- 2.7 J NO uglL 1/17108 - - 10 NO -- NO NO NO uq/L 07/30/08 - - 10 NO -- 1.8 B ND 1.1 J uWL 01/22/09 - - 10 2.1 B -- 1.] B ND 1.5 J uq/L 07/14/09 - - 10 NO -- 0.807 J NO NO Up/ L 01/07/10 - - 10 NO -- 0.766 J 4.]] J NO uq/L 01/20/10 - - 10 NO -- NO NO NO uq/L 01/31/11 - - 10 NO -- NO NO NO uq/L 07/18/11 - - 10 NO -- NO NO NO uglL 01/25/12 - - 10 NO -- 1.10 J ND NO uq/L 07/19/12 - - 10 NO -- NO NO NO uglL 01/30/13 - - 10 NO -- 1.42 J ND NO uq/L 07/15/13 - - 10 NO -- NO NO NO Up/ L 01/27/14 - - 10 NO -- 1.66 J ND NO uq/L 07/14/14 - 10 NO -- NO NO NO ug/L 01/20/15 1.1 - 10 NO -- 1.51 J ND NO uWL 07/23/15 1.1 - 10 NO -- 1.45 J ND NO ug/L 01/12/16 1.1 - 10 NO -- 1.61 J ND NO ug/L 08/01/16 1.1 - 10 NO -- 1.13 J ND NO ug/L 01/1 ]117 1.1 - 10 NO - 1.90 J ND NO ug/L 07/2fi117 1.1 - 10 NO -- 1.62 J ND NO ug/L 02/20/16 1.1 10 1.16 B -- 2.34 B ND 1.22 J ug/L 08/08lie 1.4 10.0 - NO -- 2.69 J 1.83 J NO ug/L 01/15/19 1.4 10.0 - NO -- 4.18 J ND NO ug/L u L 08/15/19 01/13/20 1.4 1.4 10.0 10.0 - NO NO -- 4.67 J ].]9 J 2.48 J ND NO NO Copper uq/L 1114105 - - - NO NO - NO - NC 2L= 1000 uq/L uq/L 12/12/05 - - - NO NO - NO - EPA MCL=1300 Wt. uq/L 12/13/05 - - - NO NO - NO - uq/L 12122I05 - - NO NO - NO uq/L 12/30/05 - - 200 NO NO - ND NO uq/L 9126106 - - 200 - NO uq/L 1131107 - - 10 NO 4.70 J - NO NO uq/L 7112107 - - 10 3.70 J NO NO NO uq/L 816/01 - - 10 -- NO 4 J uq/L 1117108 - - 10 1.80 B -- 1.90 B 120 B 1.30 J uq/L 07/30/08 - - 10 NO -- NO NO NO uq/L 01/22/09 - - 10 2.40 J -- NO NO NO uq/L 07/14/09 - - 10 1.12 B -- 1.28 B 4.03 B 1.04 J uq/L 01/07/10 - - 10 NO -- NO 2.34 J NO uq/L 01/20/10 - - 10 NO -- NO NO 3.50 J uq/L 01/31/11 - - 10 1.78 J -- NO NO NO uq/L 07/18/11 - - 10 NO -- NO NO NO uq/L 01/25/12 - - 10 NO -- NO NO NO uq/L 07/19/12 - - 10 NO -- NO NO NO uq/L 01/30/13 - - 10 NO -- NO 1.87 J NO uq/L 07/15/13 - - 10 NO -- NO NO NO uq/L 01/21/14 - - 10 NO -- NO NO NO uq/L 07/14/14 - 10 NO -- NO NO NO uq/L 01/20/15 1.6 - 10 NO -- 1.74 J NO NO uq/L 0]/23/15 1.6 - 10 NO -- NO NO 1.90 J uq/L 01/12/i6 1.8 - 10 ND -- ND ND 3.52 J uq/L 08/01/16 1.6 - 10 NO -- NO NO NO uq/L 01/1 ]/1] 1.6 - 10 NO -- 2.32 B NO 4.80 J uq/L 0]/2li/1] 1.6 - 10 1.89 B -- 1.72 B NO 4.18 J uq/L 02/20/18 1.6 10 NO -- NO NO NO uq/L 08/08/18 1.6 10.0 - NO -- NO NO NO uq/L 01/15/19 1.8 10.0 - NO -- NO NO NO uq/L uoIL 08/15/19 1 01/13/20 1.6 1.8 10.0 1 10.0 - 1.63 J 1 NO -- NO NO NO NO NO NO Lead ug/L 11/4/05 - - - NO ND - 18 - NC2L=15 ug/L uglL 12/12/05 - - - NO 24 - 16 - EPA MCL = 15 uq/L uglL 12/13/05 - - - NO 10 - NO - ug/L 12/22/05 - - NO 11 - 28 ug/L 12/30/05 - - 10 NO 10 - 23 NO ug/L 9/26/0fi - - 10 NO ND - NO NO ug/L 1/31/0] - - 10 NO 4.0 J - NO NO ug/L 7/12/07 - - 10 NO ND NO NO ug/L 8/6107 - - 10 -- NO NO ug/L 1/17/08 - - 10 NO -- NO ND NO uglL 07/30/08 - - 10 NO -- NO ND NO ug/L 01/22/09 - - 10 NO -- NO ND NO ug/L 07/14/09 - - 10 NO -- 2.35 B ND 3.40 J ug/L 01/07/10 - - 10 1.4] B -- NO 12.8 1.58 J ug/L 07/20/10 - - 10 NO -- NO ND NO ug/L 01/31/11 - - 10 NO -- NO ND NO ug/L 07/18/11 - - 10 NO -- NO ND NO ug/L 01/25/12 - - 10 NO -- NO ND NO ug/L 07/19/12 - - 10 NO -- NO ND NO ug/L 01/30/13 - - 10 NO -- NO NO 1.97 J ug/L 07/15/13 - - 10 NO -- NO NO NO ug/L 01/27114 - - 10 NO -- NO NO NO ug/L 0]114114 - 10 NO -- NO NO NO ug/L 01120115 2.1 - 10 NO -- NO NO NO ug/L 07/23115 3.1 - 10 NO -- NO NO NO ug/L 01/12/16 3.1 - 10 NO -- NO NO NO ug/L 08/01/16 3.1 - 10 NO -- NO NO NO ug/L 01/1 ]117 3.1 - 10 NO -- NO ND NO ug/L 07/2fi117 3.1 - 10 NO -- NO ND NO ug/L 02/20/16 3.1 10 NO -- NO ND NO ug/L 08/08lie 3.1 10.0 - NO -- NO ND NO up/L 01/15/19 3.1 10.0 - NO -- NO ND NO up/L up/L 08/15/19 01/13/20 3.1 3.1 10.0 10.0 - NO NO -- NO ND NO ND NO NO G GOLDER Page 3 of March 2020 Project No. 19123756. 100 Table 9 Summary of Detected Constituents in Groundwater for the C&D Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring SWS Reporting CAD Monitoring Wells Constituents/Analytes Units Sample Date MDL MRL Limit Blanks U .client MW-17 Down mdienl MW-18 MW-i8R MW-19 Nickel ug/L 1114/05 - - - ND ND - ND - NC 21 = 100 uq/L uq/L 12/12/05 - - - ND ND - ND - NoEPAMCL uq/L 12/13/05 - - - ND ND - ND - uq/L 12/22/05 - - ND ND - ND ug/L 12/30/05 - - 50 ND ND - -- ND uq/L 912610 - - 50 - ND uq/L 113110] - - 50 ND 3.1 1 - ND ND ug/L 7/12107 - - 50 31.7 1 5.3 1 ND ND u9/L 816107 - - 50 -- ND ND ug/L 1/17108 - - 50 ND -- ND ND ND uq/L 07/30/08 - - 50 ND -- 2.9 B ND 12.4 1 uq/L 01/22/09 - - 50 ND -- ND ND ND uq/L 07/14/09 - - 50 ND -- 1.30 1 1.06 1 ND uq/L 01/07/10 - - 50 ND -- ND 4.93 1 ND uq/L 07/20/10 - - 50 ND -- ND ND ND uq/L 01/31/11 - - 50 ND -- ND ND ND uq/L 07/18/11 - - 50 ND -- ND ND ND uq/L 01/25/12 - - 50 3.13 1 -- ND ND ND uq/L 07/19/12 - - 50 ND -- ND ND ND uq/L 01/30/13 - - 50 ND -- ND ND ND uq/L 07/15/13 - - 50 ND -- ND ND ND uq/L M7/14 - - 50 ND -- ND ND ND uq/L 07/14/14 - 50 6.13 1 -- ND ND ND uq/L MOM 1.8 - 50 ND -- ND ND ND uq/L 07/23/15 1.8 - 50 ND -- ND ND ND uq/L 01/12/16 1.8 - 50 ND -- ND ND ND uq/L 08/01/16 2.2 - 50 ND -- ND ND ND uq/L 01/17/17 2.2 - 50 ND -- ND ND ND uq/L 0]/26/17 2.2 - 50 ND -- ND ND ND uq/L 02/20/18 2.2 50 ND -- ND ND ND uq/L 08/08/18 2.2 10.0 - ND -- ND ND ND uq/L 01/15/19 2.2 10.0 - ND -- ND ND ND UWL u L 08/15/19 1 01/13/20 2.2 2.2 10.0 1 10.0 - ND 1 ND -- ND ND ND ND ND ND Selenium uglL 12/30/05 - - 20 ND ND - ND ND NC 2L=20 ug/L ug/L 9126/06 - - 20 ND ND - ND ND EPA MCL = 50 uq/L ug/L 1131107 - - 10 2.6 B ND - ND 2.0 1 uq/L 7112107 - - 10 ND ND ND ND uglL 816107 - - 10 -- ND ND uq/L 1117/08 - - 10 3.5 B -- ND 23 B 2.1 1 uq/L 07/30/08 - - 10 ND -- ND ND ND uq/L 01/22/09 - - 10 ND -- ND ND ND ug/L 07/14/09 - - 10 ND -- ND ND ND ug/L 01/07/10 - - 10 ND -- ND ND ND ug/L 07/20/10 - - 10 ND -- ND ND ND ug/L 01/31/11 - - 10 ND -- ND ND ND ug/L 07/18/11 - - 10 ND -- ND ND ND ug/L 01/25/12 - - 10 ND -- ND ND ND ug/L 07/19/12 - - 10 ND -- ND ND ND ug/L 01/30/13 - - 10 ND -- ND ND ND ug/L 01/30/13 - - 10 ND -- ND ND ND ug/L 07/15/13 - - 10 ND -- ND ND ND ug/L 01/27/14 - - 10 ND -- ND ND ND ug/L 07/14/14 - 10 ND -- ND ND ND ug/L 01/20/15 5 - 10 ND -- ND ND ND ug/L 07/23/15 5 - 10 ND -- ND ND ND ug/L 01/12/16 5 - 10 ND -- ND ND ND ug/L 08/01/16 6.2 - 10 ND -- ND ND ND ug/L 01/17/17 6.2 - 10 ND -- ND ND ND ug/L 07/26/17 6.2 - 10 ND -- ND ND ND ug/L 02/20/16 6.2 10 ND -- ND ND ND ug/L 08/08/16 6.2 10.0 - ND -- ND ND ND ug/L 01/15/19 6.2 10.0 - ND -- ND ND ND up/L u L 08/15/19 1 01/13M 6.2 6.2 10.0 1 10.0 - ND ND -- ND ND ND ND ND ND Silver ug/L 1211105 - - 10 ND ND - ND ND NC 2L = 20 ug/L ugIL 9/26/06 - - 10 ND ND - ND ND EPA MCL = 100 ug/L ug/L 1/31/07 - - 10 ND ND - ND ND ug/L 7/12/07 - - 10 ND ND ND ND ug/L 816107 - - 10 -- ND ND ug/L 1/17/08 - - 10 ND -- ND ND ND ug/L 0713010E - - 10 ND -- ND ND ND ug/L 01/22/09 - - 10 2.7 B -- ND ND 2.1 1 ug/L 07/14/09 - - 10 ND -- ND ND ND ug/L 01/07/10 - - 10 ND -- ND ND ND ug/L 07/20/10 - - 10 ND -- ND ND ND ug/L 01/31/11 - - 10 ND -- ND ND ND ug/L 07/18/11 - - 10 ND -- ND ND ND ug/L 01/25/12 - - 10 1.91 1 -- ND ND ND ug/L 07/19/12 - - 10 2.94 1 -- 3.44 1 ND ND ug/L 01/30/13 - - 10 ND -- 2.31 1 ND ND ug/L 07/15/13 - - 10 ND -- ND ND ND ug/L 01/27/14 - - 10 ND -- ND ND ND ug/L 07/14/14 - 10 ND -- ND ND ND ug/L 01/20/15 1.9 - 10 ND -- ND ND 3.39 J ug/L 07/23/15 1.9 - 10 ND -- ND ND ND ug/L 01/12/16 1.9 - 10 ND -- ND ND ND ug/L 08/01/16 1.9 - 10 4.39 1 -- ND ND ND ug/L 01/17/17 1.9 - 10 ND -- ND ND ND ug/L 07/2fi117 1.9 - 10 ND -- 1.90 1 2.12 1 ND ug/L 02/20/16 1.9 10 ND -- ND ND ND up/L 08/08lie 1.9 10.0 - ND -- ND 2.11 1 ND up/L 01/15/19 1.9 10.0 - ND -- ND ND ND up/L up/L 08/15/19 01/13M 1.9 1.9 10.0 10.0 - ND ND -- ND ND ND ND ND ND G GOLDER Page 4 of March 2020 Project No. 19123756.100 Table 9 Summary of Detected Constituents in Groundwater for the C&D Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring SWS Reporting C&D Monitoring Wells Constituents/Analytes Units Sample Date MDL MRL Limit Blanks U radient MW-17 Down mdienl MW-18 MW-i8R MW-19 Thallium Uq/L 1114/05 - - - ND ND - ND - IMAC = 0.2 uq/L Uq/L 12/12/05 - - - ND ND - ND - EPA MCL=2 uWL Uq/L 12/13/05 - - - ND ND - ND - Uq/L 12/22/05 - - ND ND - ND Uq/L 12/30/05 - - 10 ND ND - ND ND Uq/L 912610 - - 10 - ND Uq/L 1/3110] - - 5.5 ND 0.085 J - ND ND Ugd. 7/12/07 - - 5.5 ND ND - ND ND U9/L 816107 - - 5.5 -- 0.080 J ND Uq/L 1/1]/08 - - 5.5 ND -- 0.084 J ND ND UWL 07/30/08 - - 5.5 ND -- 0.141 J ND ND WL U 01/22/09 - - 5.5 ND -- 0.078 B 0.068 a 0.096 J uWL 07/14/09 - - 5.5 ND -- 0.0580 J 0.0490 J ND WL U 01/07/10 - - 5.5 ND -- ND 0.415 J ND uWL 07/20/10 - - 5.5 ND -- ND ND ND WL u 01/31/11 - - 5.5 ND -- ND ND ND uWL 07/18/11 - - 5.5 ND -- ND ND ND u5/12 WL 01/2 - - 5.5 ND -- ND ND ND uWL 07/19/12 - - 5.5 ND -- ND ND ND WL u 01/30/13 - - 5.5 ND -- ND ND ND uWL 07/15/13 - - 5.5 ND -- 0.113 J ND ND u1/14 WL 01/2 - - 5.5 ND -- 0.151 J ND ND uWL 07/14/14 - 5.5 ND -- ND ND ND UWL MOM 0.1 - 5.5 ND -- 0.178 J ND UWL /23 0]/15 0.1 - 5.5 ND -- 0.120 J ND ND U 01/12/16 01 5..5 ND J J 0DW ND u 08/01/ifi 0 55 ND ND U 01/17/17 0.1 55 ND O.d 9 J ND ND uW 0]/2fi/1] 0.1 55 0.160 J 58 J o155 J ND UW 02/20/18 0.1 5.5 ND 033 . J ND ND UWL 08/08/18 0.55 5.00 - ND -- ND ND ND WL u 01/15/19 0.55 5.00 - ND -- ND ND ND UWL u L 08/15/19 01/13/20 0.22 0.22 2.00 2.00 - ND ND -- 0.243 0.699 J J ND ND ND ND Vanadium ug/L 11/4105 - - - ND N❑ -- 52 - IMAC = 0.3 ugd. ugd. 12I113I052I05 - - - ND 160 - 53 - NoEPA MCL Ug/L 12/ - - - ND 42 - ND - ug/L 12I22I05 - - ND 18 - 78 ug/L 12I30I0, - - 40 ND 69 - 45 ND Uq/L 9126/0 - - 40 - ND Ugd. 1/31/0] - - 25 ND 16A J - ND ND Uq/L 7/12107 - - 25 ND ND ND ND Ug/L 816107 - - 25 -- 1.4 J ND Ug/L 1/17/08 - - 25 1A J -- 7.8 J 1.7 J ND UWL 07/30/08 - - 25 ND -- 5.3 J ND ND uWL 01/22/09 - - 25 2.3 B -- 2.5 B ND 1.4 J UWL 07/14/09 - - 25 ND -- 4.91 J 1.55 J ND UWL 01/07/10 - - 25 ND -- 1.53 J 23.5 J ND WL U 07/20/10 - - 25 ND -- 1.T1 J 2.02 J ND uWL 01/31/11 - - 25 ND -- ND ND ND uWL 07/18/11 - - 25 ND -- ND ND ND uWL 01/25/12 - - 25 ND -- ND ND ND uWL 07/19/12 - - 25 ND -- ND ND ND WL u 01/30/13 - - 25 ND -- ND ND ND WL u 07/15/13 - - 25 ND -- ND ND ND u1/14 WL 01/2 - - 25 ND -- ND ND ND WL u 07/14/14 - 25 ND -- ND ND ND WL OM MOM 1.4 - 25 ND -- ND ND ND uWL /23 0]/15 1.4 - 25 ND -- ND ND ND WL u 01/12/16 1.4 - 25 ND -- ND ND ND WL u 08/01/16 1.4 - 25 ND -- ND ND ND WL U 01/17/17 1.4 - 25 ND -- ND ND ND ug/L 0]/26/1] 1.4 - 25 ND -- ND ND ND uWL 02/20/18 1.4 25 ND -- ND ND ND WL U 08/08/16 1.4 10.0 - ND -- ND 1.74 J ND WL U 01/15/19 1.4 10.0 - ND -- ND ND ND UWL u L 08/15/19 01/13/20 1.4 1.4 10.0 10.0 - ND ND -- ND ND ND 3.35 J ND ND Zinc uq/L 1114105 - - - 52 ND - 62 - NC 2L= 1000 UWL UgIL 12/12/05 - - - ND 56- EPA MCL=5000 uq/L Uq/L 12/13I05 - - - ND ND - ND - Uq/L 12/22/05 - - ND ND - 94 U"L 12/30/05 - - 50 ND 430 - 51 ND Uq/L 9126106 - - 50 - ND uq/L 1131107 - - 10 ND 10.1 - ND ND Uq/L 7/12/07 - - 10 3.7 J ND ND ND U9/L 816107 - - 10 -- 15 B 15 J Uq/L 1/17/08 - - 10 ND -- ND ND ND UWL 07/30/08 - - 10 ND -- ND ND ND WL U2/09 01/2 - - 10 ND -- ND ND ND uWL 07/14/09 - - 10 7.12 J -- ND 5.82 J ND WL u 01/07/10 - - 10 2.46 J -- 27.3 43.0 ND uWL 07/20/10 - - 10 ND -- ND 8.41 J ND WL u 01/31/11 - - 10 ND -- ND ND ND uWL 07/18/11 - - 10 ND -- ND ND ND u5/12 WL 01/2 - - 10 ND -- ND ND ND uWL 07/19/12 - - 10 ND -- ND 4.63 J ND WL u 01/30/13 - - 10 ND -- ND ND ND uWL 07/15/13 - - 10 ND -- ND ND ND u1/14 WL 01/2 - - 10 3.96 J -- ND ND ND uWL 07/14/14 - 10 ND -- ND ND ND UWL 01/20/15 3.8 - 10 5.76 J -- ND ND ND uWL 0]/23/15 3.8 - 10 ND -- ND ND ND uWL 01/12/16 3.8 - 10 ND -- ND ND ND uWL 08/01/16 4.4 - 10 ND -- ND ND ND uWL 01/1]/17 4.4 - 10 ND -- ND ND ND uWL 0]/28/1] 4.4 - 10 ND -- ND ND ND uWL 02/20/18 4.4 10 ND -- ND ND ND uWL 08/08/18 4.4 10.0 - ND -- ND ND ND uWL 01/15/19 4.4 10.0 - ND -- ND ND ND uWL uoIL 08/15/19 01/13/20 4.4 4.4 10.0 10.0 - 5.60 J 6.97 J -- 5.87 4.68 J J 5.92 J ND ND ND G GOLDER Page 5 of March 2020 Project No. 19123756.100 Table 9 Summary of Detected Constituents in Groundwater for the C&D Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring SWS Reporting C&D Monitoring Wells C... tit-ma/Analyte. Unite Sample Date MDL MRL Limit Blank. U redient MW-17 Down redieni MW-18 MW-i8R MW-19 Iron ugIL 1/31107 - - 300 20 J 2510 - 180 ND NC 2L=300 ug/L ugIL 7/12/07 - - 300 284 J 968 31 J ND EPA MCL = 300 ugIL ugIL 816107 - - 300 -- 585 ND ugIL 1/17/08 - - 300 ND -- 2310 286 J ND ugIL 01/30/08 - - 300 ND -- 1310 79 J ND ugIL 01/22/09 - - 300 ND -- 623 68 J ND ugIL 07/14/09 - - 300 4T9 J -- 1450 224 J ND ugIL 01/07/10 - - 300 20.0 J -- 484 9220 ND ug1L 07/20/10 - - 300 58.4 B -- 469 431 30.8 J ugIL 01/31/11 - - 300 ND -- 57.0 J 35.9 J ND ugIL 07/18/11 - - 300 ND -- ND 102 J ND ugIL 01/25/12 - - 300 ND -- ND ]1.2 J ND ugIL 07/19/12 - - 300 2].] J -- ND 65.4 J ND ugIL 01/30/13 - - 300 48.3 J -- ND 58.6 J ND ugIL 07/15/13 - - 300 ND -- ND 97.1 J ND ugIL 01/21/14 - - 300 ND -- ND ND ND ugIL 07/14/14 - 300 40.6 J -- 165 J 25.9 J ND ugIL MOM 22 - 300 ND -- 4].5 J ND ND ugIL 01/23/15 22 - 300 ND -- 35.5 J ND ND u91L 01/12/16 22 - 300 59.8 J -- 222 J ND ND ugIL 08/01/16 22 - 300 65.1 J -- 168 J 38.7 J ND ug1L 01/17/17 22 - 300 ND -- 32.6 J ND ND ugIL 0]/26/1] 22 - 300 47.6 J -- 36.6 J ND ND ug1L 02/20/18 22 - 300 ND -- 34 J 40.4 J ND ugIL 08/08/18 22 50.0 - 63.4 -- 62.8 167 ND ugIL 01/15/19 22 50.0 - ND -- 1820 104 ND ugIL 02/21/19 22 50.0 - ND -- 2110 -- ND ugIL u L 08/15/19 1 01/13/20 22 22 50.0 1 50.0 - ND 1 ND -- 1480 Z96 5930 13]0 ND ND Manganese ugIL 1131/07 - - 50 2.2 J 660 - 22.1 ND NC 2L=50 ug1L EPA MCL = 50 ugIL ugIL ugIL 7/12/07 816107 - - - - 50 50 15.1 J - 23fi -- - 163 11.2 J -- ND ND ugIL 1117/08 - - 50 ND -- 38.9 J 12.0 B 3.5 J ug1L 07/30/08 - - 50 1.6 J -- 35.4 J T5 J ND ugIL 01/22/09 - - 50 2.0 J -- 33.] J ].] J ND ug1L 07/14/09 - - 50 2.90 J -- 3].4 J 19.4 J ND ug1L 01/07/10 - - 50 1.T J -- 31.0 J 202 ND ug1L 07/20110 - - 50 5.27 J -- 34.6 J 22.2 J ND ugIL 01/31/11 - - 50 3.02 J -- 43.8 J 12.8 J ND u91L 0]/18/11 - - 50 1.10 J -- 45.9 J 8.73 J ND ug1L 01/25112 - - 50 ND -- 65.6 6.11 J ND ugIL 07/19/12 - - 50 1.23 J -- 82.2 3.99 J ND ug1L 01/30/13 - - 50 7.95 J -- 149 4.13 J ND ugIL 07/15/13 - - 50 3.00 J -- 342 8.13 J ND ug1L 01/27/14 - - 50 3.48 J -- 242 J ND ugIL 07/14/14 - 50 7.22 J -- i]] ].82 J ND ug1L 01/20/15 1.1 - 50 4.07 J -- 362 5.00 J ND ugIL 01/23/15 1.1 - 50 1.85 J -- 184 9.51 J ND ug1L 01/12/16 1.1 - 50 3.21 J -- 690 4.39 J ND ugIL 08/01/16 1.1 - 50 4.82 J -- 330 51.0 ND ug1L 01/17/17 1.1 - 50 &69 J -- 668 4.50 J ND ugIL 07/26/17 1.1 - 50 4.34 J -- 513 40.6 J ND ug1L 02/20M8 1.1 - 50 9.35 J -- 676 5.]2 J ND ugIL 08/08/18 1.5 10.0 - 5.48 J -- 5]2 24.] ND ug1L 01/15/19 1.5 10.0 - &93 J -- 15/0 18.3 ND (VenScation Event) ugIL 02/21/19 1.5 f0.0 - -- 1180 ND ug1L 08/15/19 1.5 10.0 - 29.1 -- 827 911 ND uc#L 1 01/13/20 1.5 1 10.0 1 17.9 1550 200 ND Acetone ugIL 11/04/OS - - - ND NO - ND - NC2L=6000 ugIL ug1L 12/12/05 - - - ND ND - ND - No EPA ugIL 12/13/OS - - - ND ND - ND - ug1L 12/22/05 - - - ND ND - ND - uglL 12/30/05 - - 20 ND ND - ND ND ug1L 09/2610fi - - 100 ND ND - ND ND ugIL 09/26/08 - - 100 ND ND ND ND ND ug1L 01/31 to - - 100 ND ND - ND ND ugIL 01/31/0] - - 100 ND ND ND ND ND ug1L 07/1210] - - 100 ND ND - ND 0.93 J ugIL 07/12/0] - - 100 ND ND ND ND ND ug1L 08/0610] - - 100 - -- ND -- ND ugIL 08/06/0] - - 100 ND ND ND ND 0.93 J ug1L 01/171. - - 100 ND -- ND ND ND ugIL 01/17/08 - - 100 ND ND ND ND ND ug1L 07/30/08 - - 100 5.2 J -- ND ND ND ugIL 01/22/09 - - 100 ND -- ND ND ND ug1L 07/14/09 - - 100 ND -- ND ND ND ugIL 01/01/10 - - 100 ND -- ND ND ND ug1L 0]/20/10 - - 100 ND -- ND ND ND ugIL 01/31/11 - - 100 ND -- ND ND ND u91L 07/18/11 - - 100 ND -- ND ND ND ugIL 01/25/12 - - 100 ND -- ND ND ND ug1L 07/19/12 - - 100 ND -- ND ND ND ugIL 01/30/13 - - 100 ND -- ND ND ND ug1L 07/15/13 - - 100 ND -- ND ND ND ugIL 01/21/14 - - 100 ND -- ND ND ND ug1L 07/14/14 - - 100 ND -- ND ND ND ugIL MOM 1.2 - 100 ND -- ND ND ug1L 07/23/15 1.2 - 100 ND -- ND ND ND ugIL 01/12/16 1.2 - 100 ND -- ND ND ND ug1L 08/01/16 1.2 - 100 ND -- ND ND ND ugIL 01/17/17 10 - 100 ND -- ND ND ND ug1L 07/26/17 10 - 100 ND -- ND ND ND ugIL 02/20/18 10 100 ND -- ND ND ND ug1L 08/08/18 10 20 - ND -- ND ND ND ugIL 01/15/19 10 20 - ND -- ND ND ND ug1L 08/15/19 10 20 - ND -- ND ND ND u L 01/13/20 10 20 ND ND ND ND G GOLDER Page 6 of March 2020 Project No. 19123756. 100 Table 9 Summary of Detected Constituents in Groundwater for the C&D Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring SWS Reporting C&D Monitoring Well. C... muents/Analyte. Unit. Sample Date MDL MRL Limit Blanks U radiant MW-17 Down ratlienl MW-16 MW-i8R MW-19 Benzene ugIL 01/31/07 - - 3 ND ND - ND ND NC 2L = 1 ugIL ugIL 07/12/07 - - 1 ND ND ND ND EPA MCL =5 ugIL ug/L 08/06/07 - - 1 - -- ND -- ND ugIL 01/17/08 - - 1 ND -- ND ND ND ugIL 07/30/08 - - 1 ND -- ND ND ND ugIL 01/22/09 - - 1 ND -- ND ND ND ugIL 07/14/09 - - 1 ND -- ND ND ND ugIL 01/07/10 - - 1 ND -- ND ND ND ugIL 07/20/10 - - 1 ND -- ND ND ND ugIL 01/31/11 - - 1 ND -- ND ND ND ugIL 07/18/11 - - 1 ND -- ND ND ND ugIL 01/25/12 - - 1 ND -- ND ND ND ugIL 07/19/12 - - 1 ND -- ND ND ND ugIL 01/30/13 - - 1 ND -- ND ND ND ugIL 07/15/13 - - 1 ND -- ND ND ND ugIL 01/21/14 - - 1 ND -- ND ND ND ugIL 07/14/14 - - 1 ND -- ND ND ND ugIL MOM - 1 ND -- ND ND ugIL 07/23/15 0.15 - 1 ND -- ND ND ND ugIL 01/12/16 0.15 - 1 ND -- ND ND ND ugIL 08/01/16 0.15 - 1 ND -- ND 1.3 ND (Venfication Event) ugIL 09/01/16 0.15 - 1 -- ND ugIL 01/17/17 0.15 - 1 ND -- ND ND ND ugIL 07/26/17 0.15 - 1 ND ND ND ND ugIL 02/20/18 0.15 - 1 ND ND - ND ND ugIL 08/08/18 0.15 1.0 - ND -- ND ND ND ugIL 01/15/19 0.15 1.0 - ND -- ND ND ND ugIL 08/15/19 0.15 1.0 - ND -- 2.1 4.5 ND (Venfication Event) ugIL u L 10/03/19 1 01/13/20 0.15 0.15 1.0 1 1.0 - ND 1 ND -- 2.3 1.0 ND ND ND ND cis1,2-Dichloroethem ugIL 0912610, - - 5 ND NO - ND ND NC 2L=]0 ug/L ugIL 01.110, - - 5 ND NO - ND ND EPA MCL =70 ugIL ugIL 07/12/07 - - 5 ND NO ND ND ugIL 08/06/07 - - 5 -- ND ND ugIL 01/17/08 - - 5 ND -- ND ND ND ugIL 07/30/08 - - 5 ND -- ND ND ND ugIL 01/22/09 - - 5 ND -- ND ND ND ugIL 07/14/09 - - 5 ND -- ND ND ND ugIL 01/07/10 - - 5 ND -- ND ND ND ugIL 01/20/10 - - 5 ND -- ND ND ND ugIL 01/31/11 - - 5 ND -- ND ND ND ugIL 07/18/11 - - 5 ND -- ND ND ND ugIL 01/25/12 - - 5 ND -- ND ND ND ugIL 07/19/12 - - 5 ND -- ND ND ND ugIL 01/30/13 - - 5 ND -- ND ND ND ugIL 07/15/13 - - 5 ND -- ND ND ND ugIL 01/21/14 - - 5 ND -- 0.69 J ND ND ugIL 07/14/14 - 5 ND -- 1.7 J ND ND uWL MOM0.15 - 5 ND -- ND ND ugIL 01/23/15 0.15 - 5 ND -- 1.2 J ND ND ugIL 01/12/16 0.15 - 5 ND -- ND ND ND ugIL 08/01/16 0.15 - 5 ND -- 0.89 J ND ND ugIL 01/17/17 0.15 - 5 ND -- ND ND ND ugIL 0M6/17 0.15 - 5 ND -- ND ND ND ugIL 02/20/18 0.15 5 ND -- ND ND ND ugIL 08/08/18 0.15 1.0 - ND -- ND ND ND ugIL 01/15/19 0.15 1.0 - ND -- ND ND ND UWL MolL 08/15/19 01/13/20 0.15 1 0.15 1.0 1.0 - 1 ND ND -- ND ND I ND ND ND ND 1,4-Di. m UWL 01/08/18 25 60 - ND -- ND ND ND NC 2L= 3 ugIL, No EPA MCL ugIL 01/i5119 1.2 2.0 - ND -- 4.6 ND ND (Verification Event ugIL 0D21I19 1.2 2.0 - ND -- 5.0 ND ND ugIL u L 08I15119 01/13I20 1.2 1.2 2.0 2.0 - ND ND -- 26 25 6.3 7.2 ND ND Tetrehydmfumr uNL 01/31/11 - - - ND -- ND ND ND NO SWd- ugIL 07/18/11 - - - ND -- ND ND ND No EPA MCL ugIL 07/18/11 - - - ND -- ND ND ND ugIL 01/25/12 - - - ND -- ND ND ND ugIL 07/19/12 - - - ND -- ND ND ND ugIL 01/30/13 - - - ND -- ND ND ND ugIL 07/15/13 - - - ND -- 2.6 ND ND ugIL 01/21/14 - - - ND -- 1.3 ND ND ugIL 07/14/14 - - ND -- ND ND ND ugIL MOM 0.6 - - ND -- ND ND ugIL 01/23/15 0.6 - - ND -- ND ND ND ugIL 01/12/16 0.6 - - ND -- ND ND ND ugIL 08/01/16 0.8 - - ND -- ND ND ND ugIL 01/17/17 0.6 - - ND -- ND 2.5 ND ugIL 0M6/17 0.8 - - ND -- ND ND ND ugIL 02/20/18 0.53 - ND -- ND ND ND ugIL 08/08/18 0.53 1.0 - ND -- ND 3.2 ND ugIL 01/15/19 0.53 1.0 - ND -- ND ND ND ugIL uoIL 08/15/19 01/13/20 0.53 0.53 1.0 1.0 - ND ND -- ND ND ND ND ND ND G GOLDER Page 7 of March 2020 Project No. 19123756.100 Table 9 Summary of Detected Constituents in Groundwater for the C&D Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring SWS Reporting C&D Monitoring Well. Constituents/Analyte. Unit. Sample Data MDL MRL Limit Blank. U r dienl MW-17 Down mdienl MW-18 MW-i8R MW-19 Chlonde mgIL 01/31/07 - - - 11.0 6.0 - 9.0 ND NC 2L=250 -IL mgIL 07/12/07 - - - 4.8 2.8 2.4 ND EPA MCL = 250 uq/L mgIL 08/06/07 - - - -- 2.9 ND mq& 01/1]/08 - - - 12 -- 5.2 B 7.5 B 2.1 mq& 07/30/08 - - - 9.8 -- 3.8 B 5.6 0.95 Ma01/22/09 - - - ].5 -- 2.8 J 3.2 J ND mq& 07/14/09 - - - 9.6 B -- 5.8 B 6.6 B 2.2 mgIL 01 to /10 - - - 9.1 -- 6.0 6.0 ND mgIL 0]/20/10 - - - 9.0 -- 8.6 6.6 ND mgIL 01/31/11 - - - 8.] B -- 9.4 5.9 B 1.6 mgIL 07/18/11 - - - ].8 -- 8.9 5.6 B 1.5 mgIL 01/25/12 - - - ].5 -- 17 5.1 B 1.4 Ma07/19/12 - - - 5.8 -- 7.1 4.6 ND Ma01/30/13 - - - ].2 B -- 22 4.6 B 1.5 Ma07/15/13 - - - 8.8 -- 35 4.5 J ND Ma01/21/14 - - - 6.3 -- 22 3.9 J ND mgIL 07/14/14 - - 5.8 -- 8.5 5.8 ND mq& 01/20/15 2.2 - - 8.5 -- 21 5.4 - mq& 0]/23/15 2.2 - - 8.5 -- 12 6.1 - mpll 01/12/16 2.2 - - 5.8 -- 35 2.3 J mgIL 08/01/16 0.29 - - 4.(i J -- 16 5.5 ND mq& 01/1]/17 2.2 - - 5.3 -- 30 4.7 J ND mq&0]/26/17 2.2 - - 5.3 -- 23 5.0 ND mgIL 02/20/18 2.2 - 5 -- 32 2.8 J ND mgIL 08/08/18 2.2 5 - 3.8 J -- 25 2.9 J ND Ma01/15/19 2.2 5 - 3.3 J -- 33 ND ND (Verification Event Ma02/21/19 2.2 5 - -- 33 ND mgIL m IL 08/15/19 1 01/13/20 2.2 2.2 5 1 5 - 4.0 J 1 5.4 -- 92 11 39 5.3 ND ND Total Dissolved Solid! mgIL 01/31/0] - - - 120 108 - 84 ND NC 2L=500 mgIL mgIL 07112.7 - - - 80 82 72 ND No EPA MCL mgIL 08/06/07 - - - -- 90 ND mgIL 0111]/08 - - - 70 -- 94 88 ND mgIL 07/30/08 - - - 110 -- 48 96 ND Ma01/22/09 - - - 66 -- 520 52 ND mgIL 07/14/09 - - - 98 -- 100 100 ND Ma01/0]/10 - - - 80 -- 60 74 ND Ma0]/20/10 - - - 74 -- 72 68 ND Ma01/31/11 - - - 94 -- 100 44 ND Ma07/18/11 - - - 54 -- 80 70 ND Ma01/25/12 - - - 58 -- 82 56 ND Ma07/19/12 - - - ]8 -- 70 66 ND Ma01/30/13 - - - 32 -- 140 36 ND mq&07/15/13 - - - 56 -- 250 48 ND Ma01/2]/14 - - - 52 -- 130 40 ND mgIL 07/14/14 - - 34 -- 68 48 ND Ma01/20/15 10 - - 46 -- 200 58 - Ma 0]/23/15 50 - - 52 -- 88 68 - Ma 01/12/16 50 - - 72 -- 300 ND mgIL 08/01/16 50 - - 58 -- 170 80 ND mq& 01/1]/17 50 - - ND -- 320 64 ND Ma07/26/17 50 - - ND -- 210 ND ND Ma02/20/18 50 - 66 -- 380 72 ND mgIL 08/0 /18 50 50 - ND -- 240 ND ND Ma01/15/19 50 50 - 60 -- 520 110 ND (Verification Event Ma02/2V19 50 50 - -- 690 ND mgIL m /L 08/15/19 01/13/20 50 50 50 50 - ND 82 -- 270 110 660 90 ND ND Sulfala mgIL 01/31/01 - - - ND 1.3 J - 1.5 J ND NC 2L=250 mgIL mgIL 07112.7 - - - 0.91 1.6 1.2 ND No EPA MCL mgIL 08/06/07 - - -- 3.7 B 3.2 J mgIL 01/1]/08 - - 250 1.0 J -- 0.99 J 1.1 J ND mq& 07/30/08 - - 250 1.6 J -- 2.6 J 1.5 J ND mgIL 01/22/09 - - 250 ND -- 2.] J 2.2 J ND mgIL 07/14/09 - - 250 ND -- 2.9 J 3.2 J ND mgIL 01 to /10 - - 250 ND -- 2.6 J 2.5 J ND mgIL 0]/20/10 - - 250 ND -- 3.0 J 2.8 J ND mgIL 01/31/11 - - 250 1.8 J -- 3.4 J 3.1 J ND mgIL 07/18/11 - - 250 1.] J -- 3.6 J 2.5 J ND mgIL 01/25/12 - - 250 1.4 J -- ].4 J 2.7 J ND mq& 07/19/12 - - 250 2 J -- 9.2 J 2.4 J ND mgIL 01/30/13 - - 250 1.] J -- 12 J 2.8 J ND mgIL 07/15/13 - - 250 1.8 B -- 70 J 4A B 1.5 J mgIL 01/21/14 - - 250 ND -- 33 J 4 J ND mgIL 07/14/14 - 250 ND -- 21 J ND ND mgIL 01/20/15 2.9 - 250 ND -- 63 J ND - Ma 0]/23/15 2.9 - 250 ND -- 16 J ND - Ma 01/12/i6 2.9 - 250 ND -- 5 J - Ma 01/12/16 2.9 - 250 -- 110 J mgIL 08/01/16 0.07 - 250 0.12 J -- 48 J 1 J ND mq& 01/1]/17 2.9 - 250 ND -- 110 J ND ND Ma0]/26/17 2.9 - 250 ND -- 69 J ND ND mgIL 02/20/18 2.9 - 250 ND -- 3 J ND Ma02/20/18 5.8 250 -- 110 J ND mgIL 08/08/18 2.9 5 - ND -- 87 3 J ND Ma01/15/19 2.9 5 - ND -- 170 6.8 ND (Verification Event Ma02/21/19 2.9 5 - -- 240 ND Ma m & 08/15/19 01/13/20 2.9 2.9 5 5 - ND ND -- 15 6.5 210 6.3 ND ND li, GOLDER Page 8 of March 2020 Project No. 19123756.100 Table 9 Summary of Detected Constituents in Groundwater for the C&D Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring Consthuents/Analytes Units Sample Data MDL MRL SWS Reporting Limit C&D Monitoring Wells Blanks U radienl MW-17 Down redienl MW-18 MW-i8R MW-19 Total Alkalinity as Ca= mglL 01/31/07 — — — 32 38 — 22 ND No Standarc mglL 07/12/07 — — — 16 B 49 26 B 6.4 J No EPA MCL mglL 08/06/07 — — — -- 6.0 mq& 01/1]/08 — — — 9.8 J -- 28 25 ND mglL 07/30/08 — — — 18 B -- 2] B 24 B 8.6 J ma 01/22/09 — — — 24 -- 28 29 ND MMIL 07/14/09 — — — 11 J -- 22 26 ND ma 01 to /10 — — — 8.7 J -- 22 23 ND ma 0]/20/10 — — — 11 J -- 33 26 ND ma 01/31/11 — — — 18 -- 29 14 J ND ma 07/11 /18 — — — ND -- 25 23 ND ma 01/25/12 — — — 12 -- 26 17 ND ma 07/19/12 — — — 14 -- 33 21 ND ma 01/30/13 — — — 27 -- 33 24 ND ma 07/15/13 — — — 31 -- 25 49 ND ma 01/21/14 — — — 40 -- 3] 39 ND MMIL 07/14/14 — — 17 -- 43 24 ND ma 01/20/15 14 — — 34 -- 61 38 — mglL 0]/23/15 14 — — 37 -- 47 43 — mglL 01/12/16 14 — — 34 -- 110 24 ma 08/01/16 14 — — 35 -- 90 48 ND ma 01/1]/11 14 — — 42 -- 130 44 ND ma 0]/26/11 14 — — 34 -- 91 41 ND MMIL 02/20/18 14 — 29 -- 130 29 ND ma 08/08/18 14 15 — 35 -- 120 32 ND ma 01/15/19 14 15 — 25 -- 190 32 ND (Venficetion Event ma 02/21/19 14 15 — -- 250 ND mq& m & 08/15/19 01/13/20 14 14 15 15 — 25 37 -- 85 82 240 42 ND ND Notes: ug/L = ml—grams car liter moth = milligrams car liter S.U. = Standard Units NTU = Nephelom.Nc Turbidity Unit: mv= millivolb ND = Not tletectetl at the stated reporting lim WSJ_ = miCroSiemens per centimete = no data available or not establishs B= blank-dualified maul J = Prior to the August 2018 event, J flags are estimated values below the SWS Reporting limit. Beginning with the August 2018 event, J flags are estimated values between I Blanks = field, trip and method blank, Shad d= ConcenVatiOns above Me current NC 2L or Solid Waste Section Grountlwater Protection Standards have been shm SWS Reporting Limit = NCPOL prior to 2007 and NCSWSL starting in 01/31/01 MDL = Laboratory method detection lim MRL = Labarstory method reporting lim 1) Historical data prior to September 2006 Provided by Rowan Court 2) MW-18 was replaced by MW-18R after the July 2007 sampling even 3) The following dllu[inns were noted for the January 2020 event: antimony and thallium (2x)all wells; sulfate and chloride st MW-18R(44; and alkalinity at MW-1 BF G GOLDER Page 9 of March 2020 Project No. 19123756.100 Table 10 Summary of C&D Landfill Field Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring C&D Monitoring Wells Upgradient Downgradient Constituents/Analytes Units Sample Date MW-17 MW-18 MW-18R MW-19 pH S.U. 11/04/05 6.41 5.46 -- 5.22 (field) S.U. 12/12/05 6.50 5.50 -- 5.40 S.U. 12/13/05 6.42 5.70 -- 5.50 S.U. 12/22/05 6.51 5.65 -- 5.60 S.U. 12/30/05 6.30 5.65 -- 5.20 S.U. 09/26/06 5.89 5.30 -- 5.28 S.U. 01/31/07 6.54 6.21 -- 5.41 S.U. 07/12/07 6.19 5.51 -- 5.86 S.U. 08/06/07 -- -- 5.25 -- S.U. 01/17/08 6.05 -- 6.30 6.56 S.U. 07/30/08 6.26 -- 5.69 7.18 S.U. 01/22/09 6.57 -- 5.09 5.64 S.U. 07/14/09 6.56 -- 5.45 5.72 S.U. 01/07/10 6.51 -- 5.98 5.81 S.U. 07/20/10 6.51 -- 5.86 5.42 S.U. 01/31/11 5.46 -- 4.90 4.96 S.U. 07/18/11 5.60 -- 4.86 5.00 S.U. 01/25/12 5.84 -- 5.04 5.27 S.U. 07/17/12 5.93 -- 5.25 5.19 S.U. 01/30/13 5.61 -- 5.11 4.82 S.U. 07/15/13 4.97 -- 5.14 4.21 S.U. 01/27/14 5.76 -- 5.32 5.42 S.U. 07/14/14 5.79 -- 5.21 5.35 S.U. 01/20/15 4.91 -- 5.18 4.66 S.U. 07/23/15 5.02 -- 4.49 4.57 S.U. 01/12/16 5.24 -- 5.37 4.90 S.U. 01/12/16 5.24 -- 5.37 4.90 S.U. 08/01/16 5.15 -- 5.16 5.00 S.U. 01/17/17 5.44 -- 5.37 5.12 S.U. 07/24/17 5.18 -- 5.13 5.29 S.U. 02/20/18 5.31 -- 5.55 5.18 S.U. 08/08/18 5.76 -- 5.62 5.29 S.U. 01/16/19 5.79 -- 5.99 5.43 (Verification) S.U. 02/21/19 -- -- 6.21 -- S.U. 08/15/19 5.60 -- 5.22 5.51 (Verification) S.U. 10/03/19 -- -- 5.29 5.49 S.U. 01/13/20 5.59 5.97 5.43 Specific Conductivity PS/cm 11/04/05 195 155 -- 150 (field) PS/cm 12/12/05 210 140 -- 145 PS/cm 12/13/05 190 125 -- 140 PS/cm 12/22/05 200 105 -- 130 PS/cm 12/30/05 190 160 -- 145 PS/cm 09/26/06 125 80 -- 84 PS/cm 01/31/07 162 125 -- 95 PS/cm 07/12/07 99 124 -- 97 PS/cm 08/06/07 -- -- 87 -- PS/cm 01/17/08 154 -- 92 138 PS/cm 07/30/08 147 -- 97 141 PS/cm 01/22/09 132 -- 99 94 PS/cm 07/14/09 102 -- 94 113 PS/cm 01/07/10 101 -- 103 96 PS/cm 07/20/10 93 -- 109 103 PS/cm 01/31/11 85 -- 118 95 PS/cm 07/18/11 86 -- 125 103 PS/cm 01/25/12 84 -- 177 98 PS/cm 07/17/12 72 -- 110 89 PS/cm 01/30/13 75 -- 230 78 PS/cm 07/15/13 85 -- 380 91 PS/cm 01/27/14 113 -- 291 118 PS/cm 07/14/14 95 -- 197 132 PS/cm 01/20/15 96 -- 304 102 PS/cm 07/23/15 91 -- 165 119 PS/cm 01/12/16 100 -- 552 78 PS/cm 01/12/16 100 -- 552 78 PS/cm 08/01/16 103 -- 345 149 PS/cm 01/17/17 97 -- 535 116 PS/cm 07/24/17 101 -- 392 117 PS/cm 02/20/18 107 -- 616 103 PS/cm 08/08/18 110 -- 503 112 PS/cm 01/16/19 97 -- 805 102 (Verification) PS/cm 02/21/19 -- -- 1098 -- PS/cm 08/15/19 99 -- 444 227 (Verification) PS/cm 10/03/19 -- -- 581 189 PS/cm 01/13/20 109 940 135 G GOLDER Pagel of March 2020 Project No. 19123756.100 Table 10 Summary of C&D Landfill Field Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring C&D Monitoring Wells Upgradient Downgradient Constituents/Analytes Units Sample Date MW-17 MW-18 MW-18R MW-19 Temperature °C 11/04/05 19.60 18.60 -- 18.20 (field) °C 12/12/05 18.40 18.60 -- 18.30 °C 12/13/05 18.60 18.20 -- 18.20 °C 12/22/05 18.80 18.40 -- 18.20 °C 12/30/05 18.40 18.60 -- 18.40 °C 09/26/06 19.40 21.90 -- 20.90 °C 01/31/07 12.60 12.70 -- 10.60 °C 07/12/07 20.13 21.05 -- 21.59 °C 08/06/07 -- -- 25.10 - °C 01/17/08 12.45 -- 12.26 8.01 °C 07/30/08 18.73 -- 18.22 21.17 °C 01/22/09 9.27 -- 13.89 9.25 °C 07/14/09 17.72 -- 16.15 18.17 °C 01/07/10 12.43 -- 13.69 10.35 °C 07/20/10 19.96 -- 19.87 18.86 °C 01/31/11 12.35 -- 13.82 10.47 °C 07/18/11 21.92 -- 19.21 20.11 °C 01/25/12 15.58 -- 16.91 12.73 °C 07/17/12 22.93 -- 21.12 20.76 °C 01/30/13 16.67 -- 17.12 14.59 °C 07/15/13 20.66 -- 17.86 19.81 °C 01/27/14 14.7 -- 15.9 11.5 °C 07/14/14 19.7 -- 18.2 17.5 °C 01/20/15 14.6 -- 16.4 12.9 °C 07/23/15 20.9 -- 17.7 17.2 °C 01/12/16 12.5 -- 16.1 12.3 °C 01/12/16 12.5 -- 16.1 12.3 °C 08/01/16 21.4 -- 18.5 19.2 °C 01/17/17 15.3 -- 17.7 14.5 °C 07/24/17 20.1 -- 19.1 19.5 °C 02/20/18 15.5 -- 15.8 11.5 °C 08/08/18 20.6 -- 19.6 19.4 °C 01/16/19 14.2 -- 14.9 10.8 (Verification) °C 02/21/19 -- -- 14.5 -- °C 08/15/19 22.0 -- 21.3 21.5 (Verification) °C 10/03/19 -- -- 25.6 21.1 °C 01/13/20 16.0 16.5 13.8 Turbidity NTU 12/30/05 -- -- -- -- (field) NTU 09/26/06 39.3 243 -- 45.3 NTU 01/31/07 30.2 >1000 -- 819 NTU 07/12/07 0 0 -- 0 NTU 08/06/07 -- -- 55.7 -- NTU 01/17/08 0.48 -- 50.9 6.39 NTU 07/30/08 38.2 -- 73.3 24.7 NTU 01/22/09 2.41 -- 14.9 3.59 NTU 07/14/09 1.86 -- 18.8 8.01 NTU 01/07/10 2.89 -- 24.6 249 NTU 07/20/10 1.52 -- 56.1 10.8 NTU 01/31/11 0.49 -- 1.58 1.71 NTU 07/18/11 0.31 -- 3.86 2.58 NTU 01/25/12 1.31 -- 1.65 3.12 NTU 07/17/12 4.16 -- 3.55 5.33 NTU 01/30/13 3.64 -- 1.76 2.42 NTU 07/15/13 2.19 -- 1.16 1.99 NTU 01/27/14 0.14 -- 1.13 1.45 NTU 07/14/14 2.42 -- 1.65 1.93 NTU 01/20/15 0.51 -- 1.39 0.82 NTU 07/23/15 0.70 -- 1.30 0.55 NTU 01/12/16 3.86 -- 0.81 4.44 NTU 01/12/16 3.86 -- 0.81 4.44 NTU 08/01/16 2.10 -- 3.45 1.49 NTU 01/17/17 0.73 -- 0.80 1.94 NTU 07/24/17 1.92 -- 2.23 0.81 NTU 02/20/18 0.27 -- 0.81 1.54 NTU 08/08/18 1.30 -- 1.49 6.59 NTU 01/16/19 1.92 -- 3.50 8.71 (Verification) NTU 02/21/19 -- -- 9.11 -- NTU 08/15/19 0.79 -- 3.62 8.98 (Verification) NTU 10/03/19 -- -- 0.60 19.1 NTU 01/13/20 1.28 6.84 34.9 G GOLDER Page 2 of March 2020 Project No. 19123756.100 Table 10 Summary of C&D Landfill Field Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring C&D Monitoring Wells Upgradient Downgradient Constituents/Analytes Units Sample Date MW-17 MW-18 MW-18R MW-19 Oxygen Reduction Potential my 12/30/05 -- -- -- -- (field) mV 9126/06 185 165 -- 196 my 1/31/07 210 177 -- 185 mV 7112107 -- -- -- -- mv 8/6/07 -- -- -- -- mv 07/20/10 -- -- -- -- mV 01/31/11 240.2 -- 269.9 271.8 my 07/18/11 132.0 -- 132.6 142.7 mV 01/25/12 -125.1 -- -136.5 -151.9 my 07/17/12 16.4 -- 30.2 34.0 mV 01/30/13 182.0 -- 194.7 201.8 mV 07/15/13 179.3 -- 145.2 218.5 my 01/27/14 167.1 -- 43.7 149.6 mV 07/14/14 212.7 -- 202.3 277.4 my 01/20/15 258.9 -- 181.8 242.0 mV 07/23/15 233.7 -- 242.8 270.9 my 01/12/16 228.1 -- 200 353.2 mV 01/12/16 228.1 -- 200 353.2 my 08/01/16 205.9 -- 195.4 309.2 mV 01/17/17 288.2 -- 236.4 306.0 my 07/24/17 177.1 -- 220.7 184.8 mV 02/20/18 296.1 -- 348.1 403.5 my 08/08/18 150.6 -- 179.4 194.0 mV 01/16/19 169.5 -- 51.5 371.6 (Verification) my 02/21/19 -- -- 159.6 -- mV 08/15/19 275.0 -- 191.0 146.3 (Verification) my 10/03/19 -- -- 149.3 153.7 mV 01/13/20 319.9 314.7 301.6 Dissolved Oxygen mg/L 12/30/05 -- -- -- -- (field) mg/L 9126/06 -- -- -- -- mg/L 1/31/07 10.6 10.5 -- 7.6 mg/L 7112107 -- -- -- -- mg/L 07/20/10 -- -- -- -- mg/L 01/31/11 8.28 -- 1.01 3.05 mg/L 07/18/11 3.99 -- 1.17 1.79 mg/L 01/25/12 6.51 -- 0.47 2.12 mg/L 07/17/12 7.30 -- 2.95 4.98 mg/L 01/30/13 3.33 -- 2.25 5.18 mg/L 07/15/13 3.64 -- 3.23 2.71 mg/L 01/27/14 1.43 -- 0.72 3.97 mg/L 07/14/14 1.85 -- 0.40 0.57 mg/L 01/20/15 4.71 -- 0.78 1.93 mg/L 07/23/15 2.24 -- 0.41 3.28 mg/L 01/12/16 1.35 -- 1.44 4.19 mg/L 01/12/16 1.35 -- 1.44 4.19 mg/L 08/01/16 1.57 -- 0.87 0.91 mg/L 01/17/17 3.52 -- 0.37 4.11 mg/L 07/24/17 0.73 -- 0.38 0.47 mg/L 02/20/18 0.57 -- 0.35 4.57 mg/L 08/08/18 1.98 -- 0.42 2.48 mg/L 01/16/19 4.08 -- 3.36 2.49 (Verification) mg/L 02/21/19 -- -- 1.42 -- mg/L 08/15/19 2.04 -- 0.20 0.15 mg/L 10/03/19 -- -- 0.61 1.60 mg/L 01/13/20 2.93 1.57 2.97 Notes: mg/L = milligrams per liter -- = no data available S.U. = Standard Units NTU = Nephelometric Turbidity Units ND = Not detected at the stated reporting limit uS/cm= microsiemens per centimeter V GOLDER Page 3 of DRAWING OLD EXISTING LANDFILL SEDIMENT ENTRANCE BASIN i ,i, MMW-5A� _... I /_PHASE I WLA DFLL _ Dill 0 EXISTING SEDIMEN BASIN M 48� i �,{L}'�"�' ♦ PHASE MOW LA DFLL o 1 o I PHASE 0 MOW LA DFLL , MW-200 , 684.80 I o o MMW-70- I ♦,I ♦♦ o _ ♦ ♦� , lo o ♦�, I I' M661 1 _ ♦ - 61 1s02�♦_ 4* ✓ ,�♦ PHASE N AFEA "\\' ! 1 �! 611.400 ! ; I ! FUTURE MSW LANDFILL 1 _ - I (PHASES IV &V) L-- 41 1 _ N SCALE HOUSE MW-16 706x42 �. �c TAW -CD ______— W17 .\ - - 706.07 < 2. 8 _ L O D /� �� ♦ °3 FUTURE MSIN LANDFLL ♦ ♦ ♦ c 11) ] (PHASES M TO IX) oo _ I I 4 ,.� !! I" ,♦ ! ! MW-18R� _ ♦ ! ! 646.92 „! PROPERTY LINE may! \ cLOBED �-_1 .5 DEMOLITION _ ♦ - \ LANDFLL ♦ - ✓ \ N - EXISTING >„ !I� ! ❑ SW-5 r SEDIMENT 0! ! BASH 1 i � .20 ON ✓ j G 01 1.67 A 0 j O FRENCH DRAIN SAMPLE POINT ! I ! C1 �) 54 `v.MW-27A• ! 656.2440 �� I I .....OMW- sal, �! ! \'� If ill a EXISTING SEDIMENT BASIN ! 100-YEAR FLOODPLAIN 1 J' /f ly, EXISTING SEDIMENT BASIN ue.,,o,,, s 1. '=SITE LOCATION x. �° irk , �� ✓� }, / ip SITE LOCATION MAP 1" = 10,000' CLIENT ROWAN COUNTY \ CONSULTANT PG C-399 YYYY-MM-DD 2020-03-12 (\ PREPARED HAC I 1 G DESIGN NTT =E NOTE 6) G O L D E R REVIEW RPK GOLDER ASSOCIATES NC, INC. APPROVED RPK LEGEND ----ezo� EXISTING TOPOGRAPHIC CONTOUR FACILITY BOUNDARY APPROXIMATE LIMITS OF WASTE _ 650 GROUNDWATER SURFACE CONTOURS �"I APPROXIMATE GROUNDWATER FLOW SEGMENT USED TO CALCULATE GRADIENT O647.56 EXISTING GROUNDWATER MONITORING WELL WITH GROUNDWATER ELEVATION ❑SW-4 SURFACE WATER MONITORING POINT COMPLIANCE METHANE MONITORING POINT ASSESSMENT METHANE MONITORING POINT NM NOT MEASURED ® FRENCH DRAIN MONITORING POINT NOTES 1. TOPOGRAPHIC CONTOUR INTERVAL = 2 FEET. 2. GROUNDWATER SURFACE CONTOUR INTERVAL = 10 FEET. 3. GROUNDWATER ELEVATIONS MEASURED ON JANUARY 16, 2020. 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 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. SURFACE WATER MONITORING POINT SW-1 IS APPROXIMATELY 550 FEET OFF THE MAPPING LIMITS SHOWN AND IS COLLECTED FROM SECOND CREEK. 7. MONITORING WELLS MW-27A, MW-28 AND MW-6 ARE UTILIZED FOR WATER LEVEL MONITORING ONLY. 'bs 8. THE LOCATION OF THE FRENCH DRAIN MONITORING POINT IS APPROXIMATE. 9. MW-28R WAS INSTALLED JULY 11, 2017 TO REPLACE MW-28. MW-28 WILL CONTINUE TO BE UTILIZED FOR WATER LEVEL MONITORING. REFERENCES 1. OVERALL SITE BASE TOPOGRAPHY PROVIDED BY S&ME ENGINEERING, INC 0 250 500 SCALE FEET PROJECT ROWAN COUNTY ACTIVE AND CLOSED LANDFILLS PERMIT NO.80-03 ROWAN COUNTY, NORTH CAROLINA TITLE GROUNDWATER CONTOUR MAP JANUARY 13, 2020 PROJECT No. Rev. DRAWING 19123756 100 0 APPENDIX A GROUNDWATER AND SURFACE WATER SAMPLING LOGS DATE: 0 (_ ( h - 2016 V GOLDER Project Name: Rowan County Active Project No./Phase No.: 19123756 Well ID: t uy _j Sampler(s): E. Vasko/ N. Tejeda - Torres Well Diameter: 2 inches Initial Depth to Water: 140 feet Depth to Bottom: Zq. 14 feet Water Column Thickness: i Z • feet Pumping Rate: i3 mL/min. System Volume: =! (%( mL Equipment: YSI Pro Plus, Hach 2100Q, Water level meter, Dedicated bladder pump, MP15 ± 0.1 ± 5% <10 ± 10% or 0.2 ± 20 (± 10 ideal) • Cond. ,RP ' • • ' --�--- Comments (weather conditions, color, type of sample, purge -water management, etc.): Weather: �,' 1,jj Beqin nurginq CcD 1 , Signature: ' Date: 01-- 1 (� - 2_.uZy QA/QC Sign Off: `�(�,� ,. _ �_ it , Date: 3 - (7 - Zv ZJ 46> COLDER DATE: O (- )li' Z.0-L0 GROUNDWATER SAMPLING LOG Project Name: Rowan County Active Project No./Phase No.: 19123756 Well ID: mw _7 Sampler(s): E. Vasko/ N. Tejeda - Torres Well Diameter: 2 inches Initial Depth to Water: Z3 feet Depth to Bottom: .03 feet Water Column Thickness: 1 Z 0 feet Pumping Rate: 1 mL/min. System Volume: { D Z 5 mL Equipment: YSI Pro Plus, Hach 2100Q, Water level meter, Dedicated bladder pump, MP15 + 0 1 + 5% <10 + 10% or 0.2 ± 20 (± 10 ideal) NUT (millivolts) ------ Comments (weather conditions, color type of sample, purge -water management, etc.): Weather: (.4inJU a 10LO 605 Begin purging Signature: Date: a 1-16 -2-ozo v < QA/QC Sign Off: vl� �Q Date: 3 -f 7 —Ze Lo GOLDER lqw DATE: 1 _7i C ZG GROUNDWATER SAMPLING LOG Project Name: Rowan County Active Project No./Phase No.: 19123756 Well ID: A, ,✓ - Sampler(s): E. Vasko/ N. Tejeda - Torres Well Diameter: " 2 inches Initial Depth to Water: <. S feet Depth to Bottom: O `- feet Water Column Thickness: ! :�5 , j feet Pumping Rate: i mL/min. System Volume: ; 3 mL Equipment: YSi Pro Plus, Hach 2100Q, Water level meter, Dedicated bladder pump, MP15 ±0.1 ±5% <10 ±10%or0.2 ± 20 (± 10 ideal) .2�MMM Comments (weather conditions, color, type of sample, purge -water management, etc.): Weather: Q i,\ n pu Signature: Date: QA/QC Sign Off: iL .' Q %CMS Date: � - / 7- Zo 2J V GOLDER DATE: GROUNDWATER SAMPLING LOG Project Name: Rowan County Active Project No./Phase No.: 19123756 Well ID: Sampler(s): E. Vasko/ N. Tejeda - Torres Well Diameter: 2 inches Initial Depth to Water: feet Depth to Bottom: 2 3 , 2 feet Water Column Thickness: /C. E feet Pumping Rate: UU mL/min. System Volume: 11 Fj mL Equipment: YSi Pro Plus, Hach 2100Q, Water level meter, Dedicated bladder pump, MP15 ±0.1 ±5% <10 ±10%or0.2 ± 20 (± 10 ideal) • • • ,is ' • • Comments (weather conditions, color, type of sample, purge -water management, etc.): Weather: cvzc�,.ya �lg"3 f�((ecrEr� r Beqin purginq C@ ! iSMf�(ort Signature: Date: I �— -Z-QZ G QA/QC Sign Off: ` tip % „� Date: S - ( 7 -20Zc) GOLDER DATE: I Y- 1 7 ` Z G ,Z C GROUNDWATER SAMPLING LOG Project Name: Rowan County Active Project No./Phase No.: 19123756 Well ID: \A1'-(Z Sampler(s): E. Vasko/ N. Tejeda - Torres Well Diameter: 2 inches Initial Depth to Water: Ci feet Depth to Bottom: zZ �. feet Water Column Thickness: 7;- 4- 3; feet Pumping Rate: 00 mL/min. System Volume: , —, Z. mL Equipment: YSI Pro Plus, Hach 2100Q, Water level meter, Dedicated bladder pump, MP15 ± 0.1 ± 5% <10 ± 10% or 0.2 ± 20 (± 10 ideal) • Cond. , ', • ' Comments (weather/conditions, color, type of sample, purge -water management, etc.): Weather: (;vas c,45 Beqin Durqinq (aD I Signature: QA/QC Sign Off: ✓61�6AJ Date: l -f -20Z0 Date: .3-I GOLDER DATE: I— 4— z o Z D GROUNDWATER SAMPLING LOG Project Name: Rowan County Active Project No./Phase No.: 19123756 Well ID: ' L3 Sampler(s): E. Vasko/ N. Tejeda - Torres Well Diameter: 2 inches Initial Depth to Water: I� 3 feet Depth to Bottom: feet Water Column Thickness: (A 7 feet Pumping Rate: L ? = mL/min. System Volume: � mL Equipment: YSI Pro Plus, Hach 2100Q, Water level meter, Dedicated bladder pump, M 115 ±0.1 ±5% <10 ±10%or0.2 ± 20 (± 10 ideal) �MMHOYNO WIN ` WL4"MIA Comments (weather conditions, color, type of sample, purge -water management, etc.): Weather: h�-c+ �v� ) 11 d �`�m,v► (� t2� �t Begin purging @ Signature Date: I I F 2� O?_ 0 QA/QC Sign Off: IAlt, ""e -)" Date: 3 -/ -) - Zo Zd GOLDER GROUNDWATER SAMPLING LOG Project Name: Rowan County Active Project No./Phase No.: 19123756 Well ID: Sampler(s): E. Vasko/ N. Tejeda - Torres Well Diameter: 2 inches Initial Depth to Water: 4-C6, feet Depth to Bottom: Lo feet Water Column Thickness: 2 I 1- feet Pumping Rate: '0C mL/min. System Volume: 15 7 mL Equipment: YSI Pro Plus, Hach 2100Q, Water level meter, Dedicated bladder pump, MP15 ±0.1 ±5°% <10 ±10%or0.2 ± 20 (± 10 ideal) �m (us/cm�lm ��3i�ril�iTii� , ' �� 2 ► ��ic r�� Comments (weather conditions, color, type of sample, purge -water management, etc.): Weather: r JrUdS Begin purging @ 0q,0 Signature: ./ G��/'!6/ Date: t 6 7iO7Z 0 QA/QC Sign Off: r� %,. Date: 3 17 - 7,0Zv GOLDER DATE: 1 „ 1 5_ZG 20 GROUNDWATER SAMPLING LOG Project Name: Rowan County Active Project No./Phase No.: 19123756 Well ID: /A VV Sampler(s): E. Vasko/ N. Te'eda - Torres Well Diameter: 2 inches Initial Depth to Water: feet Depth to Bottom: '' feet Water Column Thickness: Y, 13 feet Pumping Rate: I mL/min. System Volume:mL Equipment: YSI Pro Plus, Hach 2100Q, Water level meter, Dedicated bladder pump, MP15 ±0.1 ±5% <10 ±10%or0.2 ± 20 (± 10 ideal) Comments (weather conditions, color, type of sample, purge -water management, etc.): Weather: f24; 4 Begin purging @ Signature: Date: P -J Z 0 2 G QA/QC Sign Off: it 4LAJ 1 Date: Z,-%� �� 2J GOLDER Ev DATE: GROUNDWATER SAMPLING LOG Project Name: Rowan County Active Project No./Phase No.: 19123756 Well ID: Sampler(s): E. Vasko/ N. Te'eda - Torres Well Diameter: 2 inches Initial Depth to Water: • ZS feet Depth to Bottom: 'Z_ `" feet Water Column Thickness: I'g,pp feet Pumping Rate: r, mL/min. System Volume: lG �- mL Equipment: YSi Pro Plus, Hach 2100Q, Water level meter, Dedicated bladder pump, MP15 ±0.1 ±5% <10 ±10%or0.2 ± 20 (± 10 ideal) Dis ' • • ' Comments (weather conditions, color, type of sample, purge -water management, etc.): Weather: Pam Beqin purginq (cD Signature: Date: +. i�- QA/QC Sign Off: �, p, �(�,, Date: 1-- Zo76 • D 0 DATE: , I Z UZC GROUNDWATER SAMPLING LOG Project Name: Rowan County Active Project No./Phase No.: 19123756 Well ID: ti, , cl Sampler(s): E. Vasko/ N. Te'e a - Torres Well Diameter: 2 inches Initial Depth to Water: feet Depth to Bottom:: ZED feet Water Column Thickness: 6 I feet Pumping Rate: 7 mL/min. System Volume: q 4 mL Equipment: YSI Pro Plus, Hach 2100Q, Water level meter, Dedicated bladder pump, MP15 + 0 1 ± 5°/ <10 ± 10% or 0.2 ± 20 (± 10 ideal) • • • , • • • • Comments (weather conditions, color, type of sample, purge -water management, etc.): Weather: E'_ci,, E\ cc v 1 Mt i*ls %e-1/G ' I Beain puralna ► -(7 _ Nf..,f�}► Signature: QA/QC Sign Off: �4. __� 2a_n - Date:.`_ 17_ *z 07, 6 Date: 3 /7-767J ji", GOLDER DATE: UI GROUNDWATER SAMPLING LOG Project Name: Rowan County Active Project No./Phase No.: 19123756 Well ID: Sampler(s): E. Vasko/ N. Tejeda - Torres Well Diameter: 2 inches Initial Depth to Water: 2-. feet Depth to Bottom: .-. `C-t feet Water Column Thickness: G I feet Pumping Rate: mL/min. System Volume: / 00 C mL Equipment: YSI Pro Plus, Hach 2100Q, Water level meter, Dedicated bladder pump, MP15 ±0.1 ±5°% <10 ±10%or0.2 ± 20 (± 10 ideal) Hwo W, �� M �'.I41 ® � Comments (weather conditions, color, type of sample, purge -water management, etc.): Weather: Beain Duraina CcD 13'�5 Signature: QA/QC S1g6'0ff: Date: Date: 35:. v .4_ GOLDER DATE: ( — l � `"Z-0 Z 0 GROUNDWATER SAMPLING LOG Project Name: Rowan County Active Project No./Phase No.: 19123756 Well ID: µtW-Z,3 Sampler(s): E. Vasko/ N. Tejeda - Torres Well Diameter: 2 inches Initial Depth to Water: o d feet Depth to Bottom: 41.36 feet Water Column Thickness: .3c feet Pumping Rate: mL/min. System Volume: (edv, mL Equipment: YSI Pro Plus, Hach 2100Q, Water level meter, Dedicated bladder pump, MP15 ± 0 1 ± 5% <10 ± 10% or 0.2 ± 20 (± 10 ideal) tiVJ'AMPM :0W_� 1M Comments (weather onditions, color, type of sample, purge -water management, etc.): Weather: V_eA� yty ; �C2c� F�JS Begin purging @ 1(5Z .n Signature://'� � t/ `�r%/f�f Date: QA/QC Sign Off: j�cu,A �. �( •.,, Date: 3 % 7- 76-4- V GOLDER DATE: GROUNDWATER SAMPLING LOG Project Name: Rowan Count Active Project No./Phase No.: 19123756 Well ID: -23 Sampler(s): E. Vasko/ N. Te'eda - Torres Well Diameter: 2 inches Initial Depth to Water: 3Zfeet Depth to Bottom: ':RA feet Water Column Thickness: 37,? i feet Pumping Rate: too mL/min. System Volume: I''>- 3 mL Equipment: YSI Pro Plus, Hach 2100Q, Water level meter, Dedicated bladder pump, MP15 +01 +5°/ <1n ±1n°/ or0.2 ± 20 (± 10 ideal) Time pH S.U.(US/cm) Sp. Cond. Turb NTU) Dis Oz (m /L Temp. °C ORP millivolts DTW feet CA Z S. R'L at.0 E. 6.GL CN6 614 I,3 ''_'Z i(p. i4s c� r0 1. 1. do G_1 Z R I .3 GO C, • 3 3_ - 1006 (0,1 i i G•t5do 13 G5. h 3 �3 1v G.O 46. -5 39.. i0� 0.4 iV ri..O I03 % lo.iZ �� _ to., t . U.,. �,r I o3 , ? �- tb. Z :U " ant'q. ' IL 044-IJ G..ice, �. ! „i <.i �W'" 105 Is14 � II'Ll GIil'' J9, r l=l.`5 b.9-cr 16.6 LVS 4 a #.37- Comment Jweather conditions, color, type of sample, purge -water management, etc.): Weather. QV\ Ra•rw, (ck,.) GO.S QA/QC Sign 40 it 151 0 Date: Q i -14 - 2j 2 � Date: 3 = I7-7v Zu GOLDER DATE: H (- z U r'0 GROUNDWATER SAMPLING LOG Project Name: Rowan Count Active Project No./Phase No.: 19123756 Well ID: c Sampler(s): E. Vasko/ N. Te' da - Torres Well Diameter: 2 inches Initial Depth to Water: , Q q feet Depth to Bottom: 1:C ' Z-� feet Water Column Thickness: / / - �-`� feet Pumping Rate: mUmin. System Volume: 11 7f mL Equipment: YS/ Pro Plus, Hach 2100Q, Water level meter, Dedicated bladder pump, MP15 ±0.1 ±5% <10 ±10%or0.2 ± 20 (± 10 ideal) • .Turb , ' • •RP (milli• Comments (weather conditions, color, type of sample, purge -water management, etc.): Weather: 011"" 3+ Begin purging @ j V j _ Signature: ` QA/QC Sign Off: -rLe'.'U _'t Date: Date: '?—(i -&+ ?b GOLDER DATE: 2 O rz. (J GROUNDWATER SAMPLING LOG Project Name: Rowan County Active Project No./Phase No.: 19123756 Well ID: Nw - ?_6 Sampler(s): E. Vasko/ N. Tejeda - Torres Well Diameter: 2 inches Initial Depth to Water: �,K .63feet Depth to Bottom: 45. ov feet Water Column Thickness: . 3-7 feet Pumping Rate: l&U mL/min. System Volume: t G7F mL Equipment: YSI Pro Plus, Hach 2100Q, Water level meter, Dedicated bladder pump, MP15 + 0.1 ± ,9 <10 ± 10% or 0.2 ± 20 (± 10 ideal) Comments (weather conditions, color, type of sample, purge -water management, etc.): Weather: i t Qvv� Qc, 0' GNUS Beain rwraiM CED fcLcg, Signature: Date: U /% -2,-) w i QA/QC Sign Off: Date: GOLDER � J F DATE: GROUNDWATER SAMPLING LOG Project Name: Rowan County Active Project No./Phase No.: 19123756 Well ID: 14W -16 Sampler(s): E. Vasko/ N. Te'eda - Torres Well Diameter: 2 inches Initial Depth to Water: 31S .bs feet Depth to Bottom: (. ce, feet Water Column Thickness: S . i S feet Pumping Rate: 1CD mL/min. System Volume: (0A4) mL Equipment: YSI Pro Plus, Hach 2100Q, Water level meter, Dedicated bladder pump, MP15 ± 0.1 ± 5% <10 ± 10% or 0.2 ± 20 (± 10 ideal) Comments (weather conditions, color, type of sample, purge -water management, etc.): Weather: �3tVlG��c.(C)LJ(. " I" GdS Beqin numinq CcD IA4- Signature: �� /.G �/1/`� Date: G(- (4 -2,_)Zy QA/QC Sig: 7Cw Date: L� GOLDER DATE: I' 16-202-0 GROUNDWATER SAMPLING LOG Project Name: Rowan County Active Project No./Phase No.: 19123756 Well ID: NLW - L- '7 Sampler(s): E. Vasko/ N. Te'eda - Torres Well Diameter: 2 inches Initial Depth to Water: . so feet Depth to Bottom: L 1- Lu feet Water Column Thickness: 13, S o feet Pumping Rate: L C, mL/min. System Volume: , 7 c �z-- mL Equipment: YSI Pro Plus, Hach 2100Q, Water level meter, Dedicated bladder pump, MP15 ±0.1 ±5% <10 ±10%or0.2 ± 20 (± 10 ideal) Sp. Cond. Mom -we Comments (weather conditions, color, type of sample, purge -water management, etc.): Weather: ©�yPG�5.L �r`cli� [•i�f✓C,n��`aft4� il>UtSf ffl� .�(iY(/ %�i 1 �? Beain iDuraina 5 ifi!S Signature: [/ �Date: I -,-I - Zc 70 QA/QC Sign Off: �w 1Z. '% u��.._ Date: 5 -/"] - 2d"7J V GOLDER DATE: l I C- --Z (3 2 G' GROUNDWATER SAMPLING LOG Project Name: Rowan County Active Project No./Phase No.: 19123756 Well ID: w- 284 Sampler(s): E. Vasko/ N. Tejeda - Torres Well Diameter: 2 inches Initial Depth to Water: i'�.;3� feet Depth to Bottom: feet Water Column Thickness: S• ( feet Pumping Rate: mL/min. System Volume: ? °'; mL Equipment: YSI Pro Plus, Hach 2100Q, Water level meter, Dedicated bladder pump, MP15 ±0.1 ±5°/ <10 ±10%or0.2 ± 20 (± 10 ideal) MINE Comments (weather conditions, color, type of sample, purge -water management, etc.): Weather: V_ck„-� Beqin puminq C@ JZAS Signature: QA/QC Sig �( Date: ( (--14 -,26' c) Date: T-r? DATE: ((2-ZOL6 G O L D E R SURFACE WATER SAMPLING LOG Project Name: Rowan Active Project No./Phase No.: 19123756 Sample ID: 5w ( Sampler(s): E. Vasko / N. Tejeda - Torres Equipment: YSI Pro Plus, Turbidimeter , \ Sampling Location Sketch Time pH S.U. 3°I Sp. Cond. US/cm q Turb. ntu•� Dis. 02 m /L 3Z Temp. oC 13=1 ORP my (�3 Comments (sample methodology, weather conditions, color, silt, etc.): Weather: C,lwa low �,L6 Flow: c_-,r.,,,A R,4-, i A cdor . Date: 0 --(c, 2c)zcu Date: -7 —ZO 'Zd DATE: C 1 h3V 7C)7r ) G O L D E R SURFACE WATER SAMPLING LOG �Ow�\n 141 1� �-�5b Project Name: —M*Qm County Landfill Project No./Phase No.:-1yI27`45I - Sample ID: i,J - Z Sampler(s): E. Vasko / N. Tejeda - Torres Sampling Location: Equipment: YSI Pro Plus, Hach 2100Q Surface Water Sampling Location Sketch Time Z pH S.U. 6,40 Sp. Cond. US/cm rr b0`3 Turb. ntu 68 3 Dis. OZ mg/L a: Z� Temp. oC IS' 0 ORP my Comments (sample method logy, weather conditions, color, silt, etc.): Weather: rCAtviq G RaU (J-J Q S Flow: �(a'cJNz S5 -, c" (; - Signature: QA/QC Date: Gi - 13 - 20 z o Date: 3 - /Z —z,2b GOLDER DATE: h l -1(. - 202-G SURFACE WATER SAMPLING LOG Project Name: Rowan Active Project No./Phase No.: 19123756 Sample ID: Scx, -3 Sampler(s): E. Vasko / N. Tejeda - Torres Equipment: YSI Pro Plus, Turbidimeter, , kord 5.5 Z-'<4 Sampling Location Sketch Time I UZZ C l S.U. Sp. Cond. US/cm 2 Turb. ntu w U Dis.02 mg/L Temp. aC ORP my Comments (sample methodology, weather conditions, color, silt, etc.) Weather: C VO(. (niwidLi , ( oo-� Flow: L-1 ood , ;,J E vk - . [a1 r mSs. l C'c0. Signature: Date: p (-- 6 QA/QC $ gin Off: _� Date: 7 - Z 8 Zy DATE: U j 3 Z�ZG G O L D E R SURFACE WATER SAMPLING LOG Project Name: -Vows County Landfill Project No./Phase No.: 14424443 Sample ID: 5W -Lf Sampler(s): E. Vasko / N. Tejeda - Torres Sampling Location: Equipment: YSI Pro Plus, Hach 2100Q Surface Water Sampling Location Sketch Time 45 pH S.U. _ Q Sp. Cond. US/cm 3� Turb. ntu � 2� Dis.OZ mg/L Temp. oC L35 ORP my _ Comments (sample methodology, weather conditions, color, silt, etc.): Weather: rcL;n Chi v Flow: Signature: Date: U 1— (3 -2� Zo QA/QC �i Off: Date: DATE: G O L D E R SURFACE WATER SAMPLING LOG \0� rL�',56 Project Name: -ftom County Landfill Project No./Phase No.: f"2;453 Sample ID: Sampler(s): E. Vasko / N. Tejeda - Torres Sampling Location: Equipment: YSI Pro Plus, Hach 2100Q Surface Water Sampling Location Sketch Time '110 S.U.pH �S Sp. Cond. US/cm Turb. ntu 'lb Dis.OZ mg/L t� v ��- Temp. 0C \& ORP my �z� L I , Comments (sample methodology, weather conditions, color, silt, etc.): Weather: PGI Yl V%uAv 1 S Flow: S Signature: / �� Date: Ot-(3-2-0Zc) QA/QC SJGn Off: , , , , J /. , ,, . Date: 14> GOLDER DATE: C- 1 6' 2 G z G LEACHATE SAMPLING LOG Project Name: Rowan Active Project No./Phase No.: 19123756 Sample ID: L. I Sampler(s): E. Vasko / N. Tejeda - Torres Equipment: YSI Pro Plus, Hach 2100Q Time �L lc) pH S.U. S 5 Sp. Cond. mS/cm Turb. ntu Dis. OZ mg/L Temp. oC ) /� V ORP my Sampling Location Sketch �gQafIt, P&M1- a 0 a ewe "e, Comments (sample methodology, weather conditions, color, silt, etc.): Weather: Gvef Ca9�- Color: } 014 LCea,r Signature: 4! � voW � QA/QC Sign Off: -7CkA--� Date: �'"- ZGZ G Date: -� - /-7 -76 �U GOLDER Project Name: Rowan Active Sample ID: French Drain Equipment: YSI ProPlus, Turbidimeter Time -- pH S.U. Sp. Cond. US/cm Turb. ntu Dis. 02 mg/L Temp. `C -- ORP my DATE: 1/14/2020 FRENCH DRAIN SAMPLING LOG Project No./Phase No.: 19123756 Sampler(s): N. Tejeda - Torres Sampling Location Sketch Lana 61� Xr1-snck Dc"A F— Dc"e,vt-k�'y Comments (sample methodology, weather conditions, color, silt, etc.): Sample point drv. no flow Signature: �40 Mw,Z'7 L{ H ►�per,j 1 /14/2020 QA/QC Si Off: 'W,,, g �..— Date: 3 /q — zu APPENDIX B JAN UARY 2020 GROUNDWATER AND SURFACE WATER CERTIFICATE -OF -ANALYSIS, CHAIN -OF -CUSTODY FORMS AND LABORATORY DATA REVIEWS 2�SQ pCCgF ENCO Laboratories 9e0 Accurate. Timely, Responsive. Innovative. 102-A Woodwinds Industrial Court Cary NC, 27511 Phone: 919.467.3090 FAX: 919.467.3515 Friday, January 31, 2020 Golder Associates, Inc. (G0007) Attn: Darren Cox 5B Oak Branch Drive Greensboro, NC 27407 RE: Laboratory Results for Project Number: 19123756.100, Project Name/Desc: Rowan County Active Landfills ENCO Workorder(s): CC21741,CD00890,CD01083 Dear Darren Cox, Enclosed is a copy of your laboratory report for test samples received by our laboratory between Tuesday, January 14, 2020 and Friday, January 17, 2020. 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, Meghan K Shea 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 H2 PROJECT NARRATIVE Date: 31 January 2020 Client: Golder Associates, Inc. (G0007) Project: Rowan County Active Landfills Lab ID: CC21741, CD00890, CDO1083 Overview (� �Eo www.encolabs.com Environmental Conservation Laboratories, Inc. (ENCO) analyzed all submitted samples in accordance with the methods referenced in the laboratory report. Any particular difficulties encountered during sample handling by ENCO are discussed in the QC Remarks section below. Quality Control Samples The 1,1-Dichloroethene spike recovery was outside acceptance limits for the 8260D MS and/or MSD. The QC batch was accepted based on acceptable LCS recovery. The 1,2-Dichloroethane and Carbon tetrachloride associated continuing calibration verification standards exhibited high bias; since the results for 8003-MW 11 and 8003-MW12 are non -detect, there is no impact. The Bromoform associated continuing calibration verification standard exhibited high bias; since the results for all the samples in worker orders CC21741 and CD00890, 8003-MW1, 8003-MW7, 8003-MW20, 8003-SW1 and 8003-SW3 are non -detect, there is no impact. The Chloroethane associated continuing calibration verification standard exhibited high bias; since the results for all the samples in work order CD01083, 8003-MW 11, 8003-MW12, 8003-MW13, 8003-MW23, 8003-MW23A and 8003-MW28R are non -detect, there is no impact. The Vinyl acetate associated continuing calibration verification standard exhibited high bias; since the result for 8003-SW5 is non -detect, there is no impact. Methylene chloride detected in 8003-Trip Blank and 8003-Field Blank. This compound is a common laboratory contaminant. 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. Meghan Shea 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 82 (� �Eo www.encolabs.com SAMPLE SUMMARY/LABORATORY CHRONICLE Client ID: 8003-MW9 Lab ID: CC21741-01 Sampled: 01/13/20 12:20 Received: O1/14/20 12:45 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 07/11/20 01/15/20 09:57 01/17/20 10:52 EPA 6020E EPA 3005A 07/11/20 01/15/20 10:06 01/15/20 20:23 EPA 8260D EPA 503013_MS O1/27/20 01/16/20 11:20 01/17/20 05:22 Client ID: 8003-SW2 Lab ID: CC21741-02 Sampled: 01/13/20 12:20 Received: 01/14/20 12:45 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(sl EPA 6010D EPA 3005A 07/11/20 01/15/20 09:57 01/17/20 10:55 EPA 6020E EPA 3005A 07/11/20 01/15/20 10:06 01/15/20 20:28 EPA 8260D EPA 5030B_MS O1/27/20 01/16/20 11:20 01/17/20 05:53 Client ID: 8003-SW4 Lab ID: CC21741-03 Sampled: 01/13/20 09:45 Received: 01/14/20 12:45 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(sl EPA 6010D EPA 3005A 07/11/20 01/15/20 09:57 01/17/20 11:07 EPA 6020B EPA 3005A 07/11/20 01/15/20 10:06 01/15/20 20:32 EPA 8260D EPA 503013_MS 01/27/20 01/16/20 11:20 01/17/20 06:24 Client ID: 8003-SWS Lab ID: CC21741-04 Sampled: 01/13/20 11:10 Received: 01/14/20 12:45 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 07/11/20 01/15/20 09:57 01/17/20 11:09 EPA 6020E EPA 3005A 07/11/20 01/15/20 10:06 01/15/20 20:37 EPA 8260D EPA 503013_MS O1/27/20 01/16/20 09:40 01/16/20 14:48 EPA 8260D EPA 5030B_MS O1/27/20 01/16/20 13:20 01/16/20 14:59 Client ID: 8003-MWll Lab ID: CD00890-01 Sampled: 01/14/20 15:28 Received: 01/15/20 13:24 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(sl EPA 6010D EPA 3005A 07/12/20 01/15/20 16:57 01/17/20 12:35 EPA 6020E EPA 3005A 07/12/20 01/15/20 16:48 01/22/20 14:07 EPA 8260D EPA 503013_MS O1/28/20 01/20/20 14:14 01/21/20 11:36 Client ID: 8003-MW12 (MS/MSD) Lab ID: CD00890-02 Sampled: 01/14/20 13:45 Received: 01/15/20 13:24 Parameter Preparation Hold Date/Time(sl Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 07/12/20 01/15/20 16:57 01/17/20 11:30 EPA 6020E EPA 3005A 07/12/20 01/15/20 16:48 01/22/20 14:11 EPA 8260D EPA 503013_MS O1/28/20 01/20/20 14:14 01/21/20 05:50 Client ID: 8003-MW13 Lab ID: CD00890-03 Sampled: 01/14/20 13:01 Received: 01/15/20 13:24 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 07/12/20 01/15/20 16:57 01/17/20 12:57 EPA 6020E EPA 3005A 07/12/20 01/15/20 16:48 01/22/20 14:16 EPA 8260D EPA 5030B_MS O1/28/20 01/20/20 12:20 01/20/20 22:26 Client ID: 8003-MW23 Lab ID: CD00890-04 Sampled: 01/14/20 12:20 Received: 01/15/20 13:24 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 07/12/20 01/15/20 16:57 01/17/20 12:41 EPA 6020B EPA 3005A 07/12/20 01/15/20 16:48 01/22/20 14:20 EPA 8260D EPA 5030B_MIS O1/28/20 01/20/20 12:20 01/20/20 22:58 Client ID: 8003-MW23A Lab ID: CD00890-05 Sampled: 01/14/20 11:30 Received: 01/15/20 13:24 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(sl EPA 6010D EPA 3005A 07/12/20 01/15/20 16:57 01/17/20 13:05 EPA 6020B EPA 3005A 07/12/20 01/15/20 16:48 01/22/20 14:38 EPA 8260D EPA 503013_MS O1/28/20 01/20/20 12:20 01/20/20 23:29 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in lull. I Page 3 Of 82 (� �Eo www.encolabs.com SAMPLE SUMMARY/LABORATORY CHRONICLE Client ID: 8003-MW25 Lab ID: CD00890-06 Sampled: 01/14/20 15:20 Received: 01/15/20 13:24 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 07/12/20 01/15/20 16:57 01/17/20 13:07 EPA 6020E EPA 3005A 07/12/20 01/15/20 16:48 01/22/20 14:42 EPA 8260D EPA 503013_MS O1/28/20 01/16/20 11:20 01/17/20 10:02 Client ID: 8003-MW26 Lab ID: CD00890-07 Sampled: 01/14/20 12:02 Received: 01/15/20 13:24 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 07/12/20 01/15/20 17:02 01/17/20 13:21 EPA 6020E EPA 3005A 07/12/20 01/15/20 16:48 01/22/20 14:46 EPA 8260D EPA 5030B_MS O1/28/20 01/16/20 11:20 01/17/20 10:33 Client ID: 8003-MW28R Lab ID: CD00890-08 Sampled: 01/14/20 12:58 Received: 01/15/20 13:24 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(sl EPA 6010D EPA 3005A 07/12/20 01/15/20 17:02 01/17/20 14:34 EPA 6020B EPA 3005A 07/12/20 01/15/20 16:48 01/22/20 14:51 EPA 8260D EPA 503013_MS 01/28/20 01/20/20 12:20 01/21/20 00:01 Client ID: 8003-Trip Blank Lab ID: CD00890-09 Sampled: 01/14/20 11:30 Received: 01/15/20 13:24 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260D EPA 503013_MS 01/28/20 01/16/20 11:20 01/17/20 03:48 Client ID: 8003-MW16 Lab ID: CD01083-01 Sampled: 01/16/20 09:52 Received: 01/17/20 13:45 Parameter Preparation Hold Date/Time(sl Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 07/14/20 01/17/20 16:36 01/22/20 10:46 EPA 6020E EPA 3005A 07/14/20 01/22/20 10:29 01/23/20 15:06 EPA 8260D EPA 503013_MS O1/30/20 01/21/20 14:14 01/22/20 00:49 Client ID: 8003-MW24R Lab ID: CD01083-02 Sampled: 01/16/20 10:32 Received: 01/17/20 13:45 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 07/14/20 01/17/20 16:36 01/22/20 10:48 EPA 6020E EPA 3005A 07/14/20 01/22/20 10:29 01/23/20 15:10 EPA 8260D EPA 503013_MS O1/30/20 01/21/20 14:14 01/22/20 01:20 Client ID: 8003-MW27 Lab ID: CD01083-03 Sampled: 01/16/20 13:09 Received: 01/17/20 13:45 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 07/14/20 01/17/20 16:36 01/22/20 10:51 EPA 6020E EPA 3005A 07/14/20 01/22/20 10:29 01/23/20 15:14 EPA 8260D EPA 5030B_MIS O1/30/20 01/21/20 14:14 01/22/20 01:52 Client ID: 8003-Field Blank Lab ID: CD01083-05 Sampled: 01/16/20 14:35 Received: 01/17/20 13:45 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(sl EPA 6010D EPA 3005A 07/14/20 01/17/20 16:36 01/22/20 10:53 EPA 6020E EPA 3005A 07/14/20 01/22/20 10:29 01/23/20 15:27 EPA 8260D EPA 503013_MS 01/30/20 01/21/20 14:14 01/21/20 19:04 Client ID: 8003-MW1 Lab ID: CD01083-06 Sampled: 01/16/20 13:12 Received: 01/17/20 13:45 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 07/14/20 01/17/20 16:36 01/22/20 10:56 EPA 6020E EPA 3005A 07/14/20 01/22/20 10:29 01/23/20 15:31 EPA 8260D EPA 503013_MS O1/30/20 01/17/20 14:29 01/18/20 11:31 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 4 Of 82 (� �Eo www.encolabs.com SAMPLE SUMMARY/LABORATORY CHRONICLE Client ID: 8003-MW7 Lab ID: CD01083-07 Sampled: 01/16/20 09:39 Received: 01/17/20 13:45 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 07/14/20 01/17/20 16:36 01/22/20 10:59 EPA 6020E EPA 3005A 07/14/20 01/22/20 10:29 01/23/20 15:36 EPA 8260D EPA 503013_MS O1/30/20 01/17/20 14:29 01/18/20 12:02 Client ID: 8003-MW20 Lab ID: CD01083-08 Sampled: 01/16/20 14:45 Received: 01/17/20 13:45 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 07/14/20 01/17/20 16:36 01/22/20 11:01 EPA 6020E EPA 3005A 07/14/20 01/22/20 10:29 01/23/20 15:40 EPA 8260D EPA 5030B_MS O1/30/20 01/17/20 14:29 01/18/20 12:33 Client ID: 8003-SW1 Lab ID: CD01083-09 Sampled: 01/16/20 11:49 Received: 01/17/20 13:45 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 07/14/20 01/17/20 16:36 01/22/20 11:09 EPA 6020B EPA 3005A 07/14/20 01/22/20 10:29 01/23/20 15:44 EPA 8260D EPA 503013_MS O1/30/20 01/17/20 14:29 01/18/20 13:04 Client ID: 8003-SW3 Lab ID: CD01083-10 Sampled: 01/16/20 10:22 Received: 01/17/20 13:45 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 07/14/20 01/17/20 16:36 01/22/20 11:12 EPA 6020E EPA 3005A 07/14/20 01/22/20 10:29 01/23/20 15:48 EPA 8260D EPA 503013_MS O1/30/20 01/17/20 14:29 01/18/20 13:35 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 5 Of 82 (� �Eo www.encolabs.com SAMPLE DETECTION SUMMARY Client ID: 8003-MW9 Lab ID: CC21741-01 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 61.3 1.10 10.0 ug/L EPA 6010D Chromium - Total 5.75 J 1.40 10.0 ug/L EPA 6010D Nickel - Total 6.96 J 2.20 10.0 ug/L EPA 6010D Vanadium - Total 3.08 J 1.40 10.0 ug/L EPA 6010D Zinc - Total 4.93 J 4.40 10.0 uq/L EPA 6010D Client ID: 8003-SW2 Lab ID: CC21741-02 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 123 1.10 10.0 ug/L EPA 6010D Beryllium - Total 0.242 J 0.160 1.00 ug/L EPA 6010D Cobalt - Total 8.47 J 1.40 10.0 ug/L EPA 6010D Copper - Total 9.52 J 1.60 10.0 ug/L EPA 6010D Lead - Total 6.70 J 3.10 10.0 ug/L EPA 6010D Vanadium - Total 18.9 1.40 10.0 ug/L EPA 6010D Zinc - Total 19.3 4.40 10.0 ug/L EPA 6010D Client ID: 8003-SW4 Lab ID: CC21741-03 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 67.0 1.10 10.0 ug/L EPA 6010D Chromium - Total 1.86 J 1.40 10.0 ug/L EPA 6010D Copper - Total 9.34 J 1.60 10.0 ug/L EPA 6010D Lead - Total 3.60 J 3.10 10.0 ug/L EPA 6010D Nickel - Total 2.24 J 2.20 10.0 ug/L EPA 6010D Vanadium - Total 5.93 J 1.40 10.0 ug/L EPA 6010D Zinc - Total 18.3 4.40 10.0 ug/L EPA 6010D Client ID: 8003-SWS Lab ID: CC21741-04 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 82.5 1.10 10.0 ug/L EPA 6010D Chromium - Total 1.51 J 1.40 10.0 ug/L EPA 6010D Cobalt - Total 1.86 J 1.40 10.0 ug/L EPA 6010D Copper - Total 4.24 J 1.60 10.0 ug/L EPA 6010D Vanadium - Total 7.82 J 1.40 10.0 ug/L EPA 6010D Zinc - Total 9.97 J 4.40 10.0 ug/L EPA 6010D Client ID: 8003-MW31 Lab ID: CD00890-01 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 46.4 1.10 10.0 ug/L EPA 6010D Vanadium - Total 2.17 J 1.40 10.0 ug/L EPA 6010D Client ID: 8003-MW32 (MS/MSD) Lab ID: CD00890-02 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 61.1 1.10 10.0 ug/L EPA 6010D Beryllium - Total 0.198 J 0.160 1.00 ug/L EPA 6010D Zinc - Total 4.83 J 4.40 10.0 ug/L EPA 6010D Client ID: 8003-MW13 Lab ID: CD00890-03 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 52.1 1.10 10.0 ug/L EPA 6010D Vanadium - Total 2.09 J 1.40 10.0 ug/L EPA 6010D Client ID: 8003-MW23 Lab ID: CD00890-04 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 178 1.10 10.0 ug/L EPA 6010D Beryllium - Total 0.195 J 0.160 1.00 ug/L EPA 6010D Chromium - Total 2.91 J 1.40 10.0 ug/L EPA 6010D Nickel - Total 9.78 J 2.20 10.0 ug/L EPA 6010D Zinc - Total 6.54 J 4.40 10.0 ug/L EPA 6010D Client ID: 8003-MW23A Lab ID: CD00890-05 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 20.5 1.10 10.0 ug/L EPA 6010D Vanadium - Total 5.80 J 1.40 10.0 ug/L EPA 6010D Zinc - Total 5.30 J 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 6 Of 82 (� �Eo www.encolabs.com SAMPLE DETECTION SUMMARY Client ID: 8003-MW25 Lab ID: CDO0890-06 Analvte Results Flag MDL Q Units Method Notes Barium - Total 28.2 1.10 10.0 ug/L EPA 6010D Chromium - Total 4.01 J 1.40 10.0 ug/L EPA 6010D Vanadium - Total 8.23 J 1.40 10.0 ug/L EPA 6010D Zinc - Total 4.66 J 4.40 10.0 ug/L EPA 6010D Client ID: 8003-MW26 Lab ID: CDO0890-07 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 55.2 1.10 10.0 ug/L EPA 6010D Beryllium - Total 0.196 1 0.160 1.00 ug/L EPA 6010D Zinc - Total 7.60 1 4.40 10.0 ug/L EPA 6010D Client ID: 8003-MW28R Lab ID: CDO0890-08 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 219 1.10 10.0 ug/L EPA 6010D Beryllium - Total 0.511 J 0.160 1.00 ug/L EPA 6010D Cobalt - Total 1.85 J 1.40 10.0 ug/L EPA 6010D Nickel - Total 2.51 J 2.20 10.0 ug/L EPA 6010D Zinc - Total 5.21 J 4.40 10.0 ug/L EPA 6010D Client ID: 8003-Trip Blank Lab ID: CDO0890-09 Analvte Results Flag MDL PQL Units Method Notes Methylene chloride 0.50 J 0.23 1.0 ug/L EPA 8260D 0-01 Client ID: 8003-MW36 Lab ID: CDO1083-01 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 14.9 1.10 10.0 ug/L EPA 6010D Client ID: 8003-MW24R Lab ID: CDO1083-02 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 51.4 1.10 10.0 ug/L EPA 6010D lium - Total 0.198 J 0.160 1.00 EPA 6010D Client ID: 8003-MW27 Lab ID: CDO1083-03 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 70.3 1.10 10.0 ug/L EPA 6010D Beryllium - Total 0.482 J 0.160 1.00 ug/L EPA 6010D Zinc - Total 6.95 J 4.40 10.0 ug/L EPA 6010D Client ID: 8003-Field Blank Lab ID: CDO1083-05 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 1.11 1 1.10 10.0 ug/L EPA 6010D Methylene chloride 0.68 J 0.23 1.0 ug/L EPA 8260D 0-01 Client ID: 8003-MW3 Lab ID: CDO1083-06 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 90.6 1.10 10.0 ug/L EPA 6010D Cobalt - Total 1.43 J 1.40 10.0 ug/L EPA 6010D Copper - Total 2.39 J 1.60 10.0 ug/L EPA 6010D Nickel- Total 3.11 J 2.20 10.0 ug/L EPA 6010D Zinc - Total 7.66 J 4.40 10.0 ug/L EPA 6010D Client ID: 8003-MW7 Lab ID: CDO1083-07 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 61.2 1.10 10.0 ug/L EPA 6010D Beryllium - Total 0.189 J 0.160 1.00 ug/L EPA 6010D Chromium - Total 3.67 J 1.40 10.0 ug/L EPA 6010D Client ID: 8003-MW20 Lab ID: CDO1083-08 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 89.6 1.10 10.0 ug/L EPA 6010D Beryllium - Total 0.230 J 0.160 1.00 ug/L EPA 6010D Cobalt - Total 5.71 J 1.40 10.0 ug/L EPA 6010D Copper - Total 2.68 J 1.60 10.0 ug/L EPA 6010D Nickel - Total 2.86 J 2.20 10.0 ug/L EPA 6010D Zinc - Total 16.3 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 7 Of 82 (� �Eo www.encolabs.com SAMPLE DETECTION SUMMARY Client ID: 8003-SW3 Lab ID: CDO1083-09 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 56.4 1.10 10.0 ug/L EPA 6010D Copper - Total 2.78 J 1.60 10.0 ug/L EPA 6010D Vanadium - Total 5.03 J 1.40 10.0 ug/L EPA 6010D Zinc - Total 4.75 J 4.40 10.0 ug/L EPA 6010D Client ID: 8003-SW3 Lab ID: CDO1083-10 Analvte Results Flag MDL PQL Units Method Notes Acetone 10 1 10 20 ug/L EPA 8260D Barium - Total 116 1.10 10.0 ug/L EPA 6010D Chromium - Total 2.18 J 1.40 10.0 ug/L EPA 6010D Cobalt - Total 2.82 J 1.40 10.0 ug/L EPA 6010D Copper - Total 5.02 J 1.60 10.0 ug/L EPA 6010D Nickel - Total 3.85 J 2.20 10.0 ug/L EPA 6010D Vanadium - Total 6.23 J 1.40 10.0 ug/L EPA 6010D Zinc - Total 10.0 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 8 Of 82 00� www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW9 Lab Sample ID:CC21741-01 Received: 01/14/20 12:45 Matrix: Ground Water Sampled:01/13/20 12:20 Work Order: CC21741 Project: Rowan County Active Landfills Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 05:22 REF 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 OA16021 EPA 8260D O1/17/20 05:22 REF 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 OA16021 EPA 8260D O1/17/20 05:22 REF 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 OA16021 EPA 8260D O1/17/20 05:22 REF 1,1-Dichloroethane [75-34-3]^ 0.13 u ug/L 1 0.13 1.0 OA16021 EPA 8260D O1/17/20 05:22 REF 1,1-Dichloroethene [75-35-4]^ 0.21 u ug/L 1 0.21 1.0 OA16021 EPA 8260D O1/17/20 05:22 REF 1,2,3-Trichloropropane [96-18-4]^ 0.23 u ug/L 1 0.23 1.0 OA16021 EPA 8260D O1/17/20 05:22 REF 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 u ug/L 1 0.48 1.0 OA16021 EPA 8260D O1/17/20 05:22 REF 1,2-Dibromoethane [106-93-4]^ 0.66 u ug/L 1 0.66 1.0 OA16021 EPA 8260D O1/17/20 05:22 REF 1,2-Dichlorobenzene [95-50-1]^ 0.19 u ug/L 1 0.19 1.0 OA16021 EPA 8260D O1/17/20 05:22 REF 1,2-Dichloroethane [107-06-2]^ 0.21 u ug/L 1 0.21 1.0 OA16021 EPA 8260D O1/17/20 05:22 REF 1,2-Dichloropropane [78-87-5]^ 0.10 u ug/L 1 0.10 1.0 OA16021 EPA 8260D O1/17/20 05:22 REF 1,4-Dichlorobenzene [106-46-7]^ 0.19 u ug/L 1 0.19 1.0 OA16021 EPA 8260D O1/17/20 05:22 REF 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 OA16021 EPA 8260D O1/17/20 05:22 REF 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 OA16021 EPA 8260D O1/17/20 05:22 REF 4-Methyl-2-pentanone [108-10-1]^ 1.1 u ug/L 1 1.1 5.0 OA16021 EPA 8260D O1/17/20 05:22 REF Acetone [67-64-1]A 10 u ug/L 1 10 20 OA16021 EPA 8260D O1/17/20 05:22 REF Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 OA16021 EPA 8260D O1/17/20 05:22 REF Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 OA16021 EPA 8260D O1/17/20 05:22 REF Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 OA16021 EPA 8260D O1/17/20 05:22 REF Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 05:22 REF Bromoform [75-25-2]^ 0.22 u ug/L 1 0.22 1.0 OA16021 EPA 8260D O1/17/20 05:22 REF QV-01 Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 OA16021 EPA 8260D O1/17/20 05:22 REF Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 OA16021 EPA 8260D O1/17/20 05:22 REF Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 05:22 REF Chlorobenzene [108-90-7]A 0.17 u ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 05:22 REF Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 OA16021 EPA 8260D O1/17/20 05:22 REF Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 OA16021 EPA 8260D O1/17/20 05:22 REF Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 OA16021 EPA 8260D O1/17/20 05:22 REF cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 OA16021 EPA 8260D O1/17/20 05:22 REF cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 OA16021 EPA 8260D O1/17/20 05:22 REF Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 05:22 REF Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 OA16021 EPA 8260D O1/17/20 05:22 REF Ethylbenzene [100-41-4]A 0.13 u ug/L 1 0.13 1.0 OA16021 EPA 8260D O1/17/20 05:22 REF Iodomethane [74-88-4]^ 1.7 u ug/L 1 1.7 5.0 OA16021 EPA 8260D O1/17/20 05:22 REF Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 OA16021 EPA 8260D O1/17/20 05:22 REF Styrene [100-42-5]A 0.11 u ug/L 1 0.11 1.0 OA16021 EPA 8260D O1/17/20 05:22 REF Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 05:22 REF Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 OA16021 EPA 8260D O1/17/20 05:22 REF trans-1,2-Dichloroethene [156-60-5]^ 0.21 u ug/L 1 0.21 1.0 OA16021 EPA 8260D O1/17/20 05:22 REF trans-1,3-Dichloropropene [10061-02-6]^ 0.15 u ug/L 1 0.15 1.0 OA16021 EPA 8260D O1/17/20 05:22 REF trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 OA16021 EPA 8260D O1/17/20 05:22 REF Trichloroethene [79-01-6]^ 0.15 u ug/L 1 0.15 1.0 OA16021 EPA 8260D O1/17/20 05:22 REF Trichlorofluoromethane [75-69-4]^ 0.24 u ug/L 1 0.24 1.0 OA16021 EPA 8260D O1/17/20 05:22 REF Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 OA16021 EPA 8260D O1/17/20 05:22 REF Vinyl chloride [75-01-4]^ 0.32 u ug/L 1 0.32 1.0 OA16021 EPA 8260D O1/17/20 05:22 REF Xylenes (Total) [1330-20-7]A 0.45 u ug/L 1 0.45 3.0 OA16021 EPA 8260D O1/17/20 05:22 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 82 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW9 Lab Sample ID:CC21741-01 Received: 01/14/20 12:45 Matrix: Ground Water Sampled:01/13/20 12:20 Work Order: CC21741 Project: Rowan County Active Landfills Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 52 1 50.0 104 % 53-136 OA16021 EPA 6260D 01117120 05:22 REF Dibromofluoromethane 53 1 50.0 106 % 67-129 OA16021 EPA 6260D 01117120 05:22 REF Toluene-& 49 1 50.0 97 % 59-134 OA16021 EPA 6260D 01117120 05:22 REF Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-O]^ 0.740 U ug/L 2 0.740 2.00 OA15024 EPA 6020B 01/15/20 20:23 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OA15021 EPA 6010D 01/17/20 10:52 JDH Barium [7440-39-3]^ 61.3 ug/L 1 1.10 10.0 OA15021 EPA 6010D 01/17/20 10:52 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 OA15021 EPA 6010D 01/17/20 10:52 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OA15021 EPA 6010D 01/17/20 10:52 JDH Chromium [7440-47-3]^ 5.75 J ug/L 1 1.40 10.0 OA15021 EPA 6010D 01/17/20 10:52 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 OA15021 EPA 6010D 01/17/20 10:52 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 OA15021 EPA 6010D 01/17/20 10:52 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 OA15021 EPA 6010D 01/17/20 10:52 JDH Nickel[7440-02-O]^ 6.96 J ug/L 1 2.20 10.0 OA15021 EPA 6010D 01/17/20 10:52 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OA15021 EPA 6010D 01/17/20 10:52 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 OA15021 EPA 6010D 01/17/20 10:52 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 OA15024 EPA 6020B 01/15/20 20:23 RLF Vanadium [7440-62-2]^ 3.08 J ug/L 1 1.40 10.0 OA15021 EPA 6010D 01/17/20 10:52 JDH Zinc[7440-66-6]^ 4.93 J ug/L 1 4.40 10.0 OA15021 EPA 6010D 01/17/20 10:52 JDH FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 10 of $2 00� www.encolabs.com ANALYTICAL RESULTS Description: 8003-SW2 Lab Sample ID:CC21741-02 Received: 01/14/20 12:45 Matrix: Surface Water Sampled:01/13/20 12:20 Work Order: CC21741 Project: Rowan County Active Landfills Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analyte FCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 05:53 REF 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 OA16021 EPA 8260D O1/17/20 05:53 REF 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 OA16021 EPA 8260D O1/17/20 05:53 REF 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 OA16021 EPA 8260D O1/17/20 05:53 REF 1,1-Dichloroethane [75-34-3]^ 0.13 u ug/L 1 0.13 1.0 OA16021 EPA 8260D O1/17/20 05:53 REF 1,1-Dichloroethene [75-35-4]^ 0.21 u ug/L 1 0.21 1.0 OA16021 EPA 8260D O1/17/20 05:53 REF 1,2,3-Trichloropropane [96-18-4]^ 0.23 u ug/L 1 0.23 1.0 OA16021 EPA 8260D O1/17/20 05:53 REF 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 u ug/L 1 0.48 1.0 OA16021 EPA 8260D O1/17/20 05:53 REF 1,2-Dibromoethane [106-93-4]^ 0.66 u ug/L 1 0.66 1.0 OA16021 EPA 8260D O1/17/20 05:53 REF 1,2-Dichlorobenzene [95-50-1]^ 0.19 u ug/L 1 0.19 1.0 OA16021 EPA 8260D O1/17/20 05:53 REF 1,2-Dichloroethane [107-06-2]^ 0.21 u ug/L 1 0.21 1.0 OA16021 EPA 8260D O1/17/20 05:53 REF 1,2-Dichloropropane [78-87-5]^ 0.10 u ug/L 1 0.10 1.0 OA16021 EPA 8260D O1/17/20 05:53 REF 1,4-Dichlorobenzene [106-46-7]^ 0.19 u ug/L 1 0.19 1.0 OA16021 EPA 8260D O1/17/20 05:53 REF 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 OA16021 EPA 8260D O1/17/20 05:53 REF 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 OA16021 EPA 8260D O1/17/20 05:53 REF 4-Methyl-2-pentanone [108-10-1]^ 1.1 u ug/L 1 1.1 5.0 OA16021 EPA 8260D O1/17/20 05:53 REF Acetone [67-64-1]A 10 u ug/L 1 10 20 OA16021 EPA 8260D O1/17/20 05:53 REF Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 OA16021 EPA 8260D O1/17/20 05:53 REF Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 OA16021 EPA 8260D O1/17/20 05:53 REF Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 OA16021 EPA 8260D O1/17/20 05:53 REF Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 05:53 REF Bromoform [75-25-2]^ 0.22 u ug/L 1 0.22 1.0 OA16021 EPA 8260D O1/17/20 05:53 REF QV-01 Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 OA16021 EPA 8260D O1/17/20 05:53 REF Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 OA16021 EPA 8260D O1/17/20 05:53 REF Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 05:53 REF Chlorobenzene [108-90-7]A 0.17 u ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 05:53 REF Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 OA16021 EPA 8260D O1/17/20 05:53 REF Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 OA16021 EPA 8260D O1/17/20 05:53 REF Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 OA16021 EPA 8260D O1/17/20 05:53 REF cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 OA16021 EPA 8260D O1/17/20 05:53 REF cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 OA16021 EPA 8260D O1/17/20 05:53 REF Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 05:53 REF Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 OA16021 EPA 8260D O1/17/20 05:53 REF Ethylbenzene [100-41-4]A 0.13 u ug/L 1 0.13 1.0 OA16021 EPA 8260D O1/17/20 05:53 REF Iodomethane [74-88-4]^ 1.7 u ug/L 1 1.7 5.0 OA16021 EPA 8260D O1/17/20 05:53 REF Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 OA16021 EPA 8260D O1/17/20 05:53 REF Styrene [100-42-5]A 0.11 u ug/L 1 0.11 1.0 OA16021 EPA 8260D O1/17/20 05:53 REF Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 05:53 REF Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 OA16021 EPA 8260D O1/17/20 05:53 REF trans-1,2-Dichloroethene [156-60-5]^ 0.21 u ug/L 1 0.21 1.0 OA16021 EPA 8260D O1/17/20 05:53 REF trans-1,3-Dichloropropene [10061-02-6]^ 0.15 u ug/L 1 0.15 1.0 OA16021 EPA 8260D O1/17/20 05:53 REF trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 OA16021 EPA 8260D O1/17/20 05:53 REF Trichloroethene [79-01-6]^ 0.15 u ug/L 1 0.15 1.0 OA16021 EPA 8260D O1/17/20 05:53 REF Trichlorofluoromethane [75-69-4]^ 0.24 u ug/L 1 0.24 1.0 OA16021 EPA 8260D O1/17/20 05:53 REF Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 OA16021 EPA 8260D O1/17/20 05:53 REF Vinyl chloride [75-01-4]^ 0.32 u ug/L 1 0.32 1.0 OA16021 EPA 8260D O1/17/20 05:53 REF Xylenes (Total) [1330-20-7]A 0.45 u ug/L 1 0.45 3.0 OA16021 EPA 8260D O1/17/20 05:53 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 82 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-SW2 Lab Sample ID:CC21741-02 Received: 01/14/20 12:45 Matrix: Surface Water Sampled:01/13/20 12:20 Work Order: CC21741 Project: Rowan County Active Landfills Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 52 1 50.0 105 % 53-136 OA16021 EPA 6260D 01117120 05:53 REF Dibromofluoromethane 53 1 50.0 106 % 67-129 OA16021 EPA 6260D 01117120 05:53 REF Toluene-& 49 1 50.0 98 % 59-134 OA16021 EPA 6260D 01117120 05:53 REF Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-O]^ 0.740 U ug/L 2 0.740 2.00 OA15024 EPA 6020B 01/15/20 20:28 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OA15021 EPA 6010D 01/17/20 10:55 JDH Barium [7440-39-3]^ 123 ug/L 1 1.10 10.0 OA15021 EPA 6010D 01/17/20 10:55 JDH Beryllium [7440-41-7]^ 0.242 J ug/L 1 0.160 1.00 OA15021 EPA 6010D 01/17/20 10:55 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OA15021 EPA 6010D 01/17/20 10:55 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 OA15021 EPA 6010D 01/17/20 10:55 JDH Cobalt[7440-48-4]^ 8.47 J ug/L 1 1.40 10.0 OA15021 EPA 6010D 01/17/20 10:55 JDH Copper[7440-50-8]^ 9.52 J ug/L 1 1.60 10.0 OA15021 EPA 6010D 01/17/20 10:55 JDH Lead [7439-92-1]^ 6.70 J ug/L 1 3.10 10.0 OA15021 EPA 6010D 01/17/20 10:55 JDH Nickel[7440-02-O]^ 2.20 U ug/L 1 2.20 10.0 OA15021 EPA 6010D 01/17/20 10:55 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OA15021 EPA 6010D 01/17/20 10:55 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 OA15021 EPA 6010D 01/17/20 10:55 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 OA15024 EPA 6020B 01/15/20 20:28 RLF Vanadium [7440-62-2]^ 18.9 ug/L 1 1.40 10.0 OA15021 EPA 6010D 01/17/20 10:55 JDH Zinc[7440-66-6]^ 19.3 ug/L 1 4.40 10.0 OA15021 EPA 6010D 01/17/20 10:55 JDH FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 12 of $2 00� www.encolabs.com ANALYTICAL RESULTS Description: 8003-SW4 Lab Sample ID:CC21741-03 Received: 01/14/20 12:45 Matrix: Surface Water Sampled:01/13/20 09:45 Work Order: CC21741 Project: Rowan County Active Landfills Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analyte FCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 06:24 REF 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 OA16021 EPA 8260D O1/17/20 06:24 REF 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 OA16021 EPA 8260D O1/17/20 06:24 REF 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 OA16021 EPA 8260D O1/17/20 06:24 REF 1,1-Dichloroethane [75-34-3]^ 0.13 u ug/L 1 0.13 1.0 OA16021 EPA 8260D O1/17/20 06:24 REF 1,1-Dichloroethene [75-35-4]^ 0.21 u ug/L 1 0.21 1.0 OA16021 EPA 8260D O1/17/20 06:24 REF 1,2,3-Trichloropropane [96-18-4]^ 0.23 u ug/L 1 0.23 1.0 OA16021 EPA 8260D O1/17/20 06:24 REF 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 u ug/L 1 0.48 1.0 OA16021 EPA 8260D O1/17/20 06:24 REF 1,2-Dibromoethane [106-93-4]^ 0.66 u ug/L 1 0.66 1.0 OA16021 EPA 8260D O1/17/20 06:24 REF 1,2-Dichlorobenzene [95-50-1]^ 0.19 u ug/L 1 0.19 1.0 OA16021 EPA 8260D O1/17/20 06:24 REF 1,2-Dichloroethane [107-06-2]^ 0.21 u ug/L 1 0.21 1.0 OA16021 EPA 8260D O1/17/20 06:24 REF 1,2-Dichloropropane [78-87-5]^ 0.10 u ug/L 1 0.10 1.0 OA16021 EPA 8260D O1/17/20 06:24 REF 1,4-Dichlorobenzene [106-46-7]^ 0.19 u ug/L 1 0.19 1.0 OA16021 EPA 8260D O1/17/20 06:24 REF 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 OA16021 EPA 8260D O1/17/20 06:24 REF 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 OA16021 EPA 8260D O1/17/20 06:24 REF 4-Methyl-2-pentanone [108-10-1]^ 1.1 u ug/L 1 1.1 5.0 OA16021 EPA 8260D O1/17/20 06:24 REF Acetone [67-64-1]A 10 u ug/L 1 10 20 OA16021 EPA 8260D O1/17/20 06:24 REF Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 OA16021 EPA 8260D O1/17/20 06:24 REF Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 OA16021 EPA 8260D O1/17/20 06:24 REF Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 OA16021 EPA 8260D O1/17/20 06:24 REF Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 06:24 REF Bromoform [75-25-2]^ 0.22 u ug/L 1 0.22 1.0 OA16021 EPA 8260D O1/17/20 06:24 REF QV-01 Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 OA16021 EPA 8260D O1/17/20 06:24 REF Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 OA16021 EPA 8260D O1/17/20 06:24 REF Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 06:24 REF Chlorobenzene [108-90-7]A 0.17 u ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 06:24 REF Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 OA16021 EPA 8260D O1/17/20 06:24 REF Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 OA16021 EPA 8260D O1/17/20 06:24 REF Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 OA16021 EPA 8260D O1/17/20 06:24 REF cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 OA16021 EPA 8260D O1/17/20 06:24 REF cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 OA16021 EPA 8260D O1/17/20 06:24 REF Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 06:24 REF Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 OA16021 EPA 8260D O1/17/20 06:24 REF Ethylbenzene [100-41-4]A 0.13 u ug/L 1 0.13 1.0 OA16021 EPA 8260D O1/17/20 06:24 REF Iodomethane [74-88-4]^ 1.7 u ug/L 1 1.7 5.0 OA16021 EPA 8260D O1/17/20 06:24 REF Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 OA16021 EPA 8260D O1/17/20 06:24 REF Styrene [100-42-5]A 0.11 u ug/L 1 0.11 1.0 OA16021 EPA 8260D O1/17/20 06:24 REF Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 06:24 REF Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 OA16021 EPA 8260D O1/17/20 06:24 REF trans-1,2-Dichloroethene [156-60-5]^ 0.21 u ug/L 1 0.21 1.0 OA16021 EPA 8260D O1/17/20 06:24 REF trans-1,3-Dichloropropene [10061-02-6]^ 0.15 u ug/L 1 0.15 1.0 OA16021 EPA 8260D O1/17/20 06:24 REF trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 OA16021 EPA 8260D O1/17/20 06:24 REF Trichloroethene [79-01-6]^ 0.15 u ug/L 1 0.15 1.0 OA16021 EPA 8260D O1/17/20 06:24 REF Trichlorofluoromethane [75-69-4]^ 0.24 u ug/L 1 0.24 1.0 OA16021 EPA 8260D O1/17/20 06:24 REF Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 OA16021 EPA 8260D O1/17/20 06:24 REF Vinyl chloride [75-01-4]^ 0.32 u ug/L 1 0.32 1.0 OA16021 EPA 8260D O1/17/20 06:24 REF Xylenes (Total) [1330-20-7]A 0.45 u ug/L 1 0.45 3.0 OA16021 EPA 8260D O1/17/20 06:24 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 82 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-SW4 Lab Sample ID:CC21741-03 Received: 01/14/20 12:45 Matrix: Surface Water Sampled:01/13/20 09:45 Work Order: CC21741 Project: Rowan County Active Landfills Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 53 1 50.0 107 % 53-136 OA16021 EPA 6260D 01117120 06:24 REF Dibromofluoromethane 52 1 50.0 104 % 67-129 OA16021 EPA 6260D 01117120 06:24 REF Toluene-& 49 1 50.0 97 % 59-134 OA16021 EPA 6260D 01117120 06:24 REF Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-O]^ 0.740 U ug/L 2 0.740 2.00 OA15024 EPA 6020B 01/15/20 20:32 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OA15021 EPA 6010D 01/17/20 11:07 JDH Barium [7440-39-3]^ 67.0 ug/L 1 1.10 10.0 OA15021 EPA 6010D 01/17/20 11:07 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 OA15021 EPA 6010D 01/17/20 11:07 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OA15021 EPA 6010D 01/17/20 11:07 JDH Chromium [7440-47-3]^ 1.86 J ug/L 1 1.40 10.0 OA15021 EPA 6010D 01/17/20 11:07 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 OA15021 EPA 6010D 01/17/20 11:07 JDH Copper[7440-50-8]^ 9.34 J ug/L 1 1.60 10.0 OA15021 EPA 6010D 01/17/20 11:07 JDH Lead [7439-92-1]^ 3.60 J ug/L 1 3.10 10.0 OA15021 EPA 6010D 01/17/20 11:07 JDH Nickel[7440-02-O]^ 2.24 J ug/L 1 2.20 10.0 OA15021 EPA 6010D 01/17/20 11:07 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OA15021 EPA 6010D 01/17/20 11:07 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 OA15021 EPA 6010D 01/17/20 11:07 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 OA15024 EPA 6020B 01/15/20 20:32 RLF Vanadium [7440-62-2]^ 5.93 J ug/L 1 1.40 10.0 OA15021 EPA 6010D 01/17/20 11:07 JDH Zinc[7440-66-6]^ 18.3 ug/L 1 4.40 10.0 OA15021 EPA 6010D 01/17/20 11:07 JDH FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 14 of $2 00� www.encolabs.com ANALYTICAL RESULTS Description: 8003-SW5 Lab Sample ID:CC21741-04 Received: 01/14/20 12:45 Matrix: Surface Water Sampled:01/13/20 11:10 Work Order: CC21741 Project: Rowan County Active Landfills Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analyte FCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 OA16013 EPA 8260D O1/16/20 14:48 REF 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 OA16013 EPA 8260D O1/16/20 14:48 REF 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 OA16013 EPA 8260D O1/16/20 14:48 REF 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 OA16013 EPA 8260D O1/16/20 14:48 REF 1,1-Dichloroethane [75-34-3]^ 0.13 u ug/L 1 0.13 1.0 OA16013 EPA 8260D O1/16/20 14:48 REF 1,1-Dichloroethene [75-35-4]^ 0.21 u ug/L 1 0.21 1.0 OA16013 EPA 8260D O1/16/20 14:48 REF 1,2,3-Trichloropropane [96-18-4]^ 0.23 u ug/L 1 0.23 1.0 OA16013 EPA 8260D O1/16/20 14:48 REF 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 u ug/L 1 0.48 1.0 OA16013 EPA 8260D O1/16/20 14:48 REF 1,2-Dibromoethane [106-93-4]^ 0.66 u ug/L 1 0.66 1.0 OA16013 EPA 8260D O1/16/20 14:48 REF 1,2-Dichlorobenzene [95-50-1]^ 0.19 u ug/L 1 0.19 1.0 OA16013 EPA 8260D O1/16/20 14:48 REF 1,2-Dichloroethane [107-06-2]^ 0.21 u ug/L 1 0.21 1.0 OA16013 EPA 8260D O1/16/20 14:48 REF 1,2-Dichloropropane [78-87-5]^ 0.10 u ug/L 1 0.10 1.0 OA16013 EPA 8260D O1/16/20 14:48 REF 1,4-Dichlorobenzene [106-46-7]^ 0.19 u ug/L 1 0.19 1.0 OA16013 EPA 8260D O1/16/20 14:48 REF 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 OA16013 EPA 8260D O1/16/20 14:48 REF 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 OA16013 EPA 8260D O1/16/20 14:48 REF 4-Methyl-2-pentanone [108-10-1]^ 1.1 u ug/L 1 1.1 5.0 OA16013 EPA 8260D O1/16/20 14:48 REF Acetone [67-64-1]A 10 u ug/L 1 10 20 OA16013 EPA 8260D O1/16/20 14:48 REF Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 OA16013 EPA 8260D O1/16/20 14:48 REF Benzene [71-43-2]A 0.15 u ug/L 1 0.15 1.0 OA16013 EPA 8260D O1/16/20 14:48 REF Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 OA16013 EPA 8260D O1/16/20 14:48 REF Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 OA16013 EPA 8260D O1/16/20 14:48 REF Bromoform [75-25-2]^ 0.22 u ug/L 1 0.22 1.0 OA16013 EPA 8260D O1/16/20 14:48 REF QV-01 Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 OA16013 EPA 8260D O1/16/20 14:48 REF Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 OA16013 EPA 8260D O1/16/20 14:48 REF Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 OA16013 EPA 8260D O1/16/20 14:48 REF Chlorobenzene [108-90-7]A 0.17 u ug/L 1 0.17 1.0 OA16013 EPA 8260D O1/16/20 14:48 REF Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 OA16013 EPA 8260D O1/16/20 14:48 REF Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 OA16013 EPA 8260D O1/16/20 14:48 REF Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 OA16013 EPA 8260D O1/16/20 14:48 REF cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 OA16013 EPA 8260D O1/16/20 14:48 REF cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 OA16013 EPA 8260D O1/16/20 14:48 REF Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 OA16013 EPA 8260D O1/16/20 14:48 REF Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 OA16013 EPA 8260D O1/16/20 14:48 REF Ethylbenzene [100-41-4]A 0.13 u ug/L 1 0.13 1.0 OA16013 EPA 8260D O1/16/20 14:48 REF Iodomethane [74-88-4]^ 1.7 u ug/L 1 1.7 5.0 OA16013 EPA 8260D O1/16/20 14:48 REF Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 OA16013 EPA 8260D O1/16/20 14:48 REF Styrene [100-42-5]A 0.11 u ug/L 1 0.11 1.0 OA16013 EPA 8260D O1/16/20 14:48 REF Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 OA16013 EPA 8260D O1/16/20 14:48 REF Tetrahydrofuran [109-99-9]^ 0.53 u ug/L 1 0.53 1.0 OA16013 EPA 8260D O1/16/20 14:48 REF Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 OA16013 EPA 8260D O1/16/20 14:48 REF trans-1,2-Dichloroethene [156-60-5]^ 0.21 u ug/L 1 0.21 1.0 OA16013 EPA 8260D O1/16/20 14:48 REF trans-1,3-Dichloropropene [10061-02-6]^ 0.15 u ug/L 1 0.15 1.0 OA16013 EPA 8260D O1/16/20 14:48 REF trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 OA16013 EPA 8260D O1/16/20 14:48 REF Trichloroethene [79-01-6]^ 0.15 u ug/L 1 0.15 1.0 OA16013 EPA 8260D O1/16/20 14:48 REF Trichlorofluoromethane [75-69-4]^ 0.24 u ug/L 1 0.24 1.0 OA16013 EPA 8260D O1/16/20 14:48 REF Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 OA16013 EPA 8260D O1/16/20 14:48 REF QV-01 Vinyl chloride [75-01-4]^ 0.32 u ug/L 1 0.32 1.0 OA16013 EPA 8260D O1/16/20 14:48 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 15 Of 82 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-SW5 Lab Sample ID:CC21741-04 Received: 01/14/20 12:45 Matrix: Surface Water Sampled:01/13/20 11:10 Work Order: CC21741 Project: Rowan County Active Landfills Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed AX Notes Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 OA16013 EPA 8260D O1/16/20 14:48 REF Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 52 1 50.0 104 % 53-136 OA16013 EPA 6260D 01116120 14:48 REF Dibromofluoromethane 52 1 50.0 105 % 67-129 OA16013 EPA 6260D 0111612014:48 REF Toluene-& 48 1 50.0 97 % 59-134 OA16013 EPA 6260D 0111612014:48 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 Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 OA15024 EPA 6020B O1/15/20 20:37 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OA15021 EPA 6010D O1/17/20 11:09 JDH Barium [7440-39-3]^ 82.5 ug/L 1 1.10 10.0 OA15021 EPA 6010D O1/17/20 11:09 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 OA15021 EPA 6010D O1/17/20 11:09 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OA15021 EPA 6010D O1/17/20 11:09 JDH Chromium [7440-47-3]^ 1.51 J ug/L 1 1.40 10.0 OA15021 EPA 6010D O1/17/20 11:09 JDH Cobalt[7440-48-4]A 1.86 J ug/L 1 1.40 10.0 OA15021 EPA 6010D O1/17/20 11:09 JDH Copper[7440-50-8]^ 4.24 J ug/L 1 1.60 10.0 OA15021 EPA 6010D O1/17/20 11:09 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 OA15021 EPA 6010D O1/17/20 11:09 JDH Nickel[7440-02-O]^ 2.20 U ug/L 1 2.20 10.0 OA15021 EPA 6010D O1/17/20 11:09 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OA15021 EPA 6010D O1/17/20 11:09 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 OA15021 EPA 6010D O1/17/20 11:09 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 OA15024 EPA 6020B O1/15/20 20:37 RLF Vanadium [7440-62-2]^ 7.82 J ug/L 1 1.40 10.0 OA15021 EPA 6010D O1/17/20 11:09 JDH Zinc[7440-66-6]^ 9.97 J ug/L 1 4.40 10.0 OA15021 EPA 6010D O1/17/20 11:09 JDH Volatile Organic Compounds by GCMS SIM Isotope Dilution ^ - ENCO Orlando certified analyte [NC 424] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes 1,4-Dioxane [123-91-1]^ 0.80 U ug/L 1 0.80 2.0 OA16037 EPA 8260D O1/16/20 14:59 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Analyzed ffly Notes Toluene-d8 6.1 1 5.00 122 % 75-125 OA16037 EPA 8260D 0111612014:59 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 16 of 82 00� www.encolabs.com ANALYTICAL RESULTS Description: 8003-MWll Lab Sample ID:CD00890-01 Received: 01/15/20 13:24 Matrix: Ground Water Sampled:01/14/20 15:28 Work Order: CD00890 Project: Rowan County Active Landfills Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 OA20027 EPA 8260D O1/21/20 11:36 REF 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 OA20027 EPA 8260D O1/21/20 11:36 REF 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 OA20027 EPA 8260D O1/21/20 11:36 REF 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 OA20027 EPA 8260D O1/21/20 11:36 REF 1,1-Dichloroethane [75-34-3]^ 0.13 u ug/L 1 0.13 1.0 OA20027 EPA 8260D O1/21/20 11:36 REF 1,1-Dichloroethene [75-35-4]^ 0.21 u ug/L 1 0.21 1.0 OA20027 EPA 8260D O1/21/20 11:36 REF 1,2,3-Trichloropropane [96-18-4]^ 0.23 u ug/L 1 0.23 1.0 OA20027 EPA 8260D O1/21/20 11:36 REF 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 u ug/L 1 0.48 1.0 OA20027 EPA 8260D O1/21/20 11:36 REF 1,2-Dibromoethane [106-93-4]^ 0.66 u ug/L 1 0.66 1.0 OA20027 EPA 8260D O1/21/20 11:36 REF 1,2-Dichlorobenzene [95-50-1]^ 0.19 u ug/L 1 0.19 1.0 OA20027 EPA 8260D O1/21/20 11:36 REF 1,2-Dichloroethane [107-06-2]^ 0.21 u ug/L 1 0.21 1.0 OA20027 EPA 8260D O1/21/20 11:36 REF QV-01 1,2-Dichloropropane [78-87-5]^ 0.10 u ug/L 1 0.10 1.0 OA20027 EPA 8260D O1/21/20 11:36 REF 1,4-Dichlorobenzene [106-46-7]^ 0.19 u ug/L 1 0.19 1.0 OA20027 EPA 8260D O1/21/20 11:36 REF 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 OA20027 EPA 8260D O1/21/20 11:36 REF 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 OA20027 EPA 8260D O1/21/20 11:36 REF 4-Methyl-2-pentanone [108-10-1]^ 1.1 u ug/L 1 1.1 5.0 OA20027 EPA 8260D O1/21/20 11:36 REF Acetone [67-64-1]A 10 u ug/L 1 10 20 OA20027 EPA 8260D O1/21/20 11:36 REF Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 OA20027 EPA 8260D O1/21/20 11:36 REF Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 OA20027 EPA 8260D O1/21/20 11:36 REF Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 OA20027 EPA 8260D O1/21/20 11:36 REF Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 OA20027 EPA 8260D O1/21/20 11:36 REF Bromoform [75-25-2]^ 0.22 u ug/L 1 0.22 1.0 OA20027 EPA 8260D O1/21/20 11:36 REF QV-01 Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 OA20027 EPA 8260D O1/21/20 11:36 REF Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 OA20027 EPA 8260D O1/21/20 11:36 REF Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 OA20027 EPA 8260D O1/21/20 11:36 REF QV-01 Chlorobenzene [108-90-7]A 0.17 u ug/L 1 0.17 1.0 OA20027 EPA 8260D O1/21/20 11:36 REF Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 OA20027 EPA 8260D O1/21/20 11:36 REF QV-01 Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 OA20027 EPA 8260D O1/21/20 11:36 REF Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 OA20027 EPA 8260D O1/21/20 11:36 REF cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 OA20027 EPA 8260D O1/21/20 11:36 REF cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 OA20027 EPA 8260D O1/21/20 11:36 REF Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 OA20027 EPA 8260D O1/21/20 11:36 REF Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 OA20027 EPA 8260D O1/21/20 11:36 REF Ethylbenzene [100-41-4]A 0.13 u ug/L 1 0.13 1.0 OA20027 EPA 8260D O1/21/20 11:36 REF Iodomethane [74-88-4]^ 1.7 u ug/L 1 1.7 5.0 OA20027 EPA 8260D O1/21/20 11:36 REF Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 OA20027 EPA 8260D O1/21/20 11:36 REF Styrene[100-42-5]A 0.11 u ug/L 1 0.11 1.0 OA20027 EPA 8260D O1/21/20 11:36 REF Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 OA20027 EPA 8260D O1/21/20 11:36 REF Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 OA20027 EPA 8260D O1/21/20 11:36 REF trans-1,2-Dichloroethene [156-60-5]^ 0.21 u ug/L 1 0.21 1.0 OA20027 EPA 8260D O1/21/20 11:36 REF trans-1,3-Dichloropropene [10061-02-6]^ 0.15 u ug/L 1 0.15 1.0 OA20027 EPA 8260D O1/21/20 11:36 REF trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 OA20027 EPA 8260D O1/21/20 11:36 REF Trichloroethene [79-01-6]^ 0.15 u ug/L 1 0.15 1.0 OA20027 EPA 8260D O1/21/20 11:36 REF Trichlorofluoromethane [75-69-4]^ 0.24 u ug/L 1 0.24 1.0 OA20027 EPA 8260D O1/21/20 11:36 REF Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 OA20027 EPA 8260D O1/21/20 11:36 REF Vinyl chloride [75-01-4]^ 0.32 u ug/L 1 0.32 1.0 OA20027 EPA 8260D O1/21/20 11:36 REF Xylenes (Total) [1330-20-7]A 0.45 u ug/L 1 0.45 3.0 OA20027 EPA 8260D O1/21/20 11:36 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 17 Of 82 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-MWll Lab Sample ID:CDO0890-01 Received: 01/15/20 13:24 Matrix: Ground Water Sampled:01/14/20 15:28 Work Order: CDO0890 Project: Rowan County Active Landfills Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 54 1 50.0 108 % 53-136 OA20027 EPA 6260D 01121120 11:36 REF Dibromofluoromethane 53 1 50.0 106 % 67-129 OA20027 EPA 6260D 01121120 11:36 REF Toluene-& 49 1 50.0 98 % 59-134 OA20027 EPA 6260D 01121120 11:36 REF Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-O]^ 0.740 U ug/L 2 0.740 2.00 OA15050 EPA 6020B 01/22/20 14:07 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OA15051 EPA 6010D 01/17/20 12:35 JDH Barium [7440-39-3]^ 46.4 ug/L 1 1.10 10.0 OA15051 EPA 6010D 01/17/20 12:35 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 OA15051 EPA 6010D 01/17/20 12:35 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OA15051 EPA 6010D 01/17/20 12:35 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 OA15051 EPA 6010D 01/17/20 12:35 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 OA15051 EPA 6010D 01/17/20 12:35 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 OA15051 EPA 6010D 01/17/20 12:35 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 OA15051 EPA 6010D 01/17/20 12:35 JDH Nickel[7440-02-O]^ 2.20 U ug/L 1 2.20 10.0 OA15051 EPA 6010D 01/17/20 12:35 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OA15051 EPA 6010D 01/17/20 12:35 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 OA15051 EPA 6010D 01/17/20 12:35 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 OA15050 EPA 6020B 01/22/20 14:07 RLF Vanadium [7440-62-2]^ 2.17 J ug/L 1 1.40 10.0 OA15051 EPA 6010D 01/17/20 12:35 JDH Zinc[7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 OA15051 EPA 6010D 01/17/20 12:35 JDH FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 18 of 82 00� www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW12 (MS/MSD) Lab Sample ID:CD00890-02 Received: 01/15/20 13:24 Matrix: Ground Water Sampled:01/14/20 13:45 Work Order: CD00890 Project: Rowan County Active Landfills Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 OA20027 EPA 8260D O1/21/20 05:50 REF 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 OA20027 EPA 8260D O1/21/20 05:50 REF 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 OA20027 EPA 8260D O1/21/20 05:50 REF 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 OA20027 EPA 8260D O1/21/20 05:50 REF 1,1-Dichloroethane [75-34-3]^ 0.13 u ug/L 1 0.13 1.0 OA20027 EPA 8260D O1/21/20 05:50 REF 1,1-Dichloroethene [75-35-4]^ 0.21 u ug/L 1 0.21 1.0 OA20027 EPA 8260D O1/21/20 05:50 REF 1,2,3-Trichloropropane [96-18-4]^ 0.23 u ug/L 1 0.23 1.0 OA20027 EPA 8260D O1/21/20 05:50 REF 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 u ug/L 1 0.48 1.0 OA20027 EPA 8260D O1/21/20 05:50 REF 1,2-Dibromoethane [106-93-4]^ 0.66 u ug/L 1 0.66 1.0 OA20027 EPA 8260D O1/21/20 05:50 REF 1,2-Dichlorobenzene [95-50-1]^ 0.19 u ug/L 1 0.19 1.0 OA20027 EPA 8260D O1/21/20 05:50 REF 1,2-Dichloroethane [107-06-2]^ 0.21 u ug/L 1 0.21 1.0 OA20027 EPA 8260D O1/21/20 05:50 REF QV-01 1,2-Dichloropropane [78-87-5]^ 0.10 u ug/L 1 0.10 1.0 OA20027 EPA 8260D O1/21/20 05:50 REF 1,4-Dichlorobenzene [106-46-7]^ 0.19 u ug/L 1 0.19 1.0 OA20027 EPA 8260D O1/21/20 05:50 REF 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 OA20027 EPA 8260D O1/21/20 05:50 REF 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 OA20027 EPA 8260D O1/21/20 05:50 REF 4-Methyl-2-pentanone [108-10-1]^ 1.1 u ug/L 1 1.1 5.0 OA20027 EPA 8260D O1/21/20 05:50 REF Acetone [67-64-1]A 10 u ug/L 1 10 20 OA20027 EPA 8260D O1/21/20 05:50 REF Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 OA20027 EPA 8260D O1/21/20 05:50 REF Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 OA20027 EPA 8260D O1/21/20 05:50 REF Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 OA20027 EPA 8260D O1/21/20 05:50 REF Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 OA20027 EPA 8260D O1/21/20 05:50 REF Bromoform [75-25-2]^ 0.22 u ug/L 1 0.22 1.0 OA20027 EPA 8260D O1/21/20 05:50 REF QV-01 Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 OA20027 EPA 8260D O1/21/20 05:50 REF Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 OA20027 EPA 8260D O1/21/20 05:50 REF Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 OA20027 EPA 8260D O1/21/20 05:50 REF QV-01 Chlorobenzene [108-90-7]A 0.17 u ug/L 1 0.17 1.0 OA20027 EPA 8260D O1/21/20 05:50 REF Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 OA20027 EPA 8260D O1/21/20 05:50 REF QV-01 Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 OA20027 EPA 8260D O1/21/20 05:50 REF Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 OA20027 EPA 8260D O1/21/20 05:50 REF cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 OA20027 EPA 8260D O1/21/20 05:50 REF cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 OA20027 EPA 8260D O1/21/20 05:50 REF Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 OA20027 EPA 8260D O1/21/20 05:50 REF Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 OA20027 EPA 8260D O1/21/20 05:50 REF Ethylbenzene [100-41-4]A 0.13 u ug/L 1 0.13 1.0 OA20027 EPA 8260D O1/21/20 05:50 REF Iodomethane [74-88-4]^ 1.7 u ug/L 1 1.7 5.0 OA20027 EPA 8260D O1/21/20 05:50 REF Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 OA20027 EPA 8260D O1/21/20 05:50 REF Styrene[100-42-5]A 0.11 u ug/L 1 0.11 1.0 OA20027 EPA 8260D O1/21/20 05:50 REF Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 OA20027 EPA 8260D O1/21/20 05:50 REF Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 OA20027 EPA 8260D O1/21/20 05:50 REF trans-1,2-Dichloroethene [156-60-5]^ 0.21 u ug/L 1 0.21 1.0 OA20027 EPA 8260D O1/21/20 05:50 REF trans-1,3-Dichloropropene [10061-02-6]^ 0.15 u ug/L 1 0.15 1.0 OA20027 EPA 8260D O1/21/20 05:50 REF trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 OA20027 EPA 8260D O1/21/20 05:50 REF Trichloroethene [79-01-6]^ 0.15 u ug/L 1 0.15 1.0 OA20027 EPA 8260D O1/21/20 05:50 REF Trichlorofluoromethane [75-69-4]^ 0.24 u ug/L 1 0.24 1.0 OA20027 EPA 8260D O1/21/20 05:50 REF Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 OA20027 EPA 8260D O1/21/20 05:50 REF Vinyl chloride [75-01-4]^ 0.32 u ug/L 1 0.32 1.0 OA20027 EPA 8260D O1/21/20 05:50 REF Xylenes (Total) [1330-20-7]A 0.45 u ug/L 1 0.45 3.0 OA20027 EPA 8260D O1/21/20 05:50 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 19 Of 82 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW12 (MS/MSD) Lab Sample ID:CDO0890-02 Received: 01/15/20 13:24 Matrix: Ground Water Sampled:01/14/20 13:45 Work Order: CDO0890 Project: Rowan County Active Landfills Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 53 1 50.0 106 % 53-136 OA20027 EPA 6260D 01121120 05:50 REF Dibromofluoromethane 54 1 50.0 106 % 67-129 OA20027 EPA 6260D 01121120 05:50 REF Toluene-& 48 1 50.0 96 % 59-134 OA20027 EPA 6260D 01121120 05:50 REF Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-O]^ 0.740 U ug/L 2 0.740 2.00 OA15050 EPA 6020B 01/22/20 14:11 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OA15051 EPA 6010D 01/17/20 11:30 JDH Barium [7440-39-3]^ 61.1 ug/L 1 1.10 10.0 OA15051 EPA 6010D 01/17/20 11:30 JDH Beryllium [7440-41-7]^ 0.198 J ug/L 1 0.160 1.00 OA15051 EPA 6010D 01/17/20 11:30 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OA15051 EPA 6010D 01/17/20 11:30 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 OA15051 EPA 6010D 01/17/20 11:30 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 OA15051 EPA 6010D 01/17/20 11:30 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 OA15051 EPA 6010D 01/17/20 11:30 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 OA15051 EPA 6010D 01/17/20 11:30 JDH Nickel[7440-02-O]^ 2.20 U ug/L 1 2.20 10.0 OA15051 EPA 6010D 01/17/20 11:30 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OA15051 EPA 6010D 01/17/20 11:30 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 OA15051 EPA 6010D 01/17/20 11:30 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 OA15050 EPA 6020B 01/22/20 14:11 RLF Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 OA15051 EPA 6010D 01/17/20 11:30 JDH Zinc[7440-66-6]^ 4.83 J ug/L 1 4.40 10.0 OA15051 EPA 6010D 01/17/20 11:30 JDH FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 20 of $2 00� www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW13 Lab Sample ID:CD00890-03 Received: 01/15/20 13:24 Matrix: Ground Water Sampled:01/14/20 13:01 Work Order: CD00890 Project: Rowan County Active Landfills Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 OA20021 EPA 8260D O1/20/20 22:26 REF 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 OA20021 EPA 8260D O1/20/20 22:26 REF 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 OA20021 EPA 8260D O1/20/20 22:26 REF 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 OA20021 EPA 8260D O1/20/20 22:26 REF 1,1-Dichloroethane [75-34-3]^ 0.13 u ug/L 1 0.13 1.0 OA20021 EPA 8260D O1/20/20 22:26 REF 1,1-Dichloroethene [75-35-4]^ 0.21 u ug/L 1 0.21 1.0 OA20021 EPA 8260D O1/20/20 22:26 REF 1,2,3-Trichloropropane [96-18-4]^ 0.23 u ug/L 1 0.23 1.0 OA20021 EPA 8260D O1/20/20 22:26 REF 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 u ug/L 1 0.48 1.0 OA20021 EPA 8260D O1/20/20 22:26 REF 1,2-Dibromoethane [106-93-4]^ 0.66 u ug/L 1 0.66 1.0 OA20021 EPA 8260D O1/20/20 22:26 REF 1,2-Dichlorobenzene [95-50-1]^ 0.19 u ug/L 1 0.19 1.0 OA20021 EPA 8260D O1/20/20 22:26 REF 1,2-Dichloroethane [107-06-2]^ 0.21 u ug/L 1 0.21 1.0 OA20021 EPA 8260D O1/20/20 22:26 REF 1,2-Dichloropropane [78-87-5]^ 0.10 u ug/L 1 0.10 1.0 OA20021 EPA 8260D O1/20/20 22:26 REF 1,4-Dichlorobenzene [106-46-7]^ 0.19 u ug/L 1 0.19 1.0 OA20021 EPA 8260D O1/20/20 22:26 REF 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 OA20021 EPA 8260D O1/20/20 22:26 REF 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 OA20021 EPA 8260D O1/20/20 22:26 REF 4-Methyl-2-pentanone [108-10-1]^ 1.1 u ug/L 1 1.1 5.0 OA20021 EPA 8260D O1/20/20 22:26 REF Acetone [67-64-1]A 10 u ug/L 1 10 20 OA20021 EPA 8260D O1/20/20 22:26 REF Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 OA20021 EPA 8260D O1/20/20 22:26 REF Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 OA20021 EPA 8260D O1/20/20 22:26 REF Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 OA20021 EPA 8260D O1/20/20 22:26 REF Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 OA20021 EPA 8260D O1/20/20 22:26 REF Bromoform [75-25-2]^ 0.22 u ug/L 1 0.22 1.0 OA20021 EPA 8260D O1/20/20 22:26 REF QV-01 Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 OA20021 EPA 8260D O1/20/20 22:26 REF Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 OA20021 EPA 8260D O1/20/20 22:26 REF Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 OA20021 EPA 8260D O1/20/20 22:26 REF Chlorobenzene[108-90-7]A 0.17 u ug/L 1 0.17 1.0 OA20021 EPA 8260D O1/20/20 22:26 REF Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 OA20021 EPA 8260D O1/20/20 22:26 REF QV-01 Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 OA20021 EPA 8260D O1/20/20 22:26 REF Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 OA20021 EPA 8260D O1/20/20 22:26 REF cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 OA20021 EPA 8260D O1/20/20 22:26 REF cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 OA20021 EPA 8260D O1/20/20 22:26 REF Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 OA20021 EPA 8260D O1/20/20 22:26 REF Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 OA20021 EPA 8260D O1/20/20 22:26 REF Ethylbenzene[100-41-4]A 0.13 u ug/L 1 0.13 1.0 OA20021 EPA 8260D O1/20/20 22:26 REF Iodomethane [74-88-4]^ 1.7 u ug/L 1 1.7 5.0 OA20021 EPA 8260D O1/20/20 22:26 REF Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 OA20021 EPA 8260D O1/20/20 22:26 REF Styrene[100-42-5]A 0.11 u ug/L 1 0.11 1.0 OA20021 EPA 8260D O1/20/20 22:26 REF Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 OA20021 EPA 8260D O1/20/20 22:26 REF Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 OA20021 EPA 8260D O1/20/20 22:26 REF trans-1,2-Dichloroethene [156-60-5]^ 0.21 u ug/L 1 0.21 1.0 OA20021 EPA 8260D O1/20/20 22:26 REF trans-1,3-Dichloropropene [10061-02-6]^ 0.15 u ug/L 1 0.15 1.0 OA20021 EPA 8260D O1/20/20 22:26 REF trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 OA20021 EPA 8260D O1/20/20 22:26 REF Trichloroethene [79-01-6]^ 0.15 u ug/L 1 0.15 1.0 OA20021 EPA 8260D O1/20/20 22:26 REF Trichlorofluoromethane [75-69-4]^ 0.24 u ug/L 1 0.24 1.0 OA20021 EPA 8260D O1/20/20 22:26 REF Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 OA20021 EPA 8260D O1/20/20 22:26 REF Vinyl chloride [75-01-4]^ 0.32 u ug/L 1 0.32 1.0 OA20021 EPA 8260D O1/20/20 22:26 REF Xylenes (Total) [1330-20-7]A 0.45 u ug/L 1 0.45 3.0 OA20021 EPA 8260D O1/20/20 22:26 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 21 Of 82 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW13 Lab Sample ID:CDO0890-03 Received: 01/15/20 13:24 Matrix: Ground Water Sampled:01/14/20 13:01 Work Order: CDO0890 Project: Rowan County Active Landfills Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 55 1 50.0 111 % 53-136 OA20021 EPA 6260D 01120120 22:26 REF Dibromofluoromethane 53 1 50.0 107 % 67-129 OA20021 EPA 6260D 01120120 22:26 REF Toluene-& 47 1 50.0 94 % 59-134 OA20021 EPA 6260D 01120120 22:26 REF Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-O]^ 0.740 U ug/L 2 0.740 2.00 OA15050 EPA 6020B 01/22/20 14:16 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OA15051 EPA 6010D 01/17/20 12:57 JDH Barium [7440-39-3]^ 52.1 ug/L 1 1.10 10.0 OA15051 EPA 6010D 01/17/20 12:57 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 OA15051 EPA 6010D 01/17/20 12:57 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OA15051 EPA 6010D 01/17/20 12:57 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 OA15051 EPA 6010D 01/17/20 12:57 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 OA15051 EPA 6010D 01/17/20 12:57 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 OA15051 EPA 6010D 01/17/20 12:57 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 OA15051 EPA 6010D 01/17/20 12:57 JDH Nickel[7440-02-O]^ 2.20 U ug/L 1 2.20 10.0 OA15051 EPA 6010D 01/17/20 12:57 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OA15051 EPA 6010D 01/17/20 12:57 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 OA15051 EPA 6010D 01/17/20 12:57 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 OA15050 EPA 6020B 01/22/20 14:16 RLF Vanadium [7440-62-2]^ 2.09 J ug/L 1 1.40 10.0 OA15051 EPA 6010D 01/17/20 12:57 JDH Zinc[7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 OA15051 EPA 6010D 01/17/20 12:57 JDH FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 22 of $2 00� www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW23 Lab Sample ID:CD00890-04 Received: 01/15/20 13:24 Matrix: Ground Water Sampled:01/14/20 12:20 Work Order: CD00890 Project: Rowan County Active Landfills Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 OA20021 EPA 8260D O1/20/20 22:58 REF 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 OA20021 EPA 8260D O1/20/20 22:58 REF 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 OA20021 EPA 8260D O1/20/20 22:58 REF 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 OA20021 EPA 8260D O1/20/20 22:58 REF 1,1-Dichloroethane [75-34-3]^ 0.13 u ug/L 1 0.13 1.0 OA20021 EPA 8260D O1/20/20 22:58 REF 1,1-Dichloroethene [75-35-4]^ 0.21 u ug/L 1 0.21 1.0 OA20021 EPA 8260D O1/20/20 22:58 REF 1,2,3-Trichloropropane [96-18-4]^ 0.23 u ug/L 1 0.23 1.0 OA20021 EPA 8260D O1/20/20 22:58 REF 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 u ug/L 1 0.48 1.0 OA20021 EPA 8260D O1/20/20 22:58 REF 1,2-Dibromoethane [106-93-4]^ 0.66 u ug/L 1 0.66 1.0 OA20021 EPA 8260D O1/20/20 22:58 REF 1,2-Dichlorobenzene [95-50-1]^ 0.19 u ug/L 1 0.19 1.0 OA20021 EPA 8260D O1/20/20 22:58 REF 1,2-Dichloroethane [107-06-2]^ 0.21 u ug/L 1 0.21 1.0 OA20021 EPA 8260D O1/20/20 22:58 REF 1,2-Dichloropropane [78-87-5]^ 0.10 u ug/L 1 0.10 1.0 OA20021 EPA 8260D O1/20/20 22:58 REF 1,4-Dichlorobenzene [106-46-7]^ 0.19 u ug/L 1 0.19 1.0 OA20021 EPA 8260D O1/20/20 22:58 REF 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 OA20021 EPA 8260D O1/20/20 22:58 REF 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 OA20021 EPA 8260D O1/20/20 22:58 REF 4-Methyl-2-pentanone [108-10-1]^ 1.1 u ug/L 1 1.1 5.0 OA20021 EPA 8260D O1/20/20 22:58 REF Acetone [67-64-1]A 10 u ug/L 1 10 20 OA20021 EPA 8260D O1/20/20 22:58 REF Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 OA20021 EPA 8260D O1/20/20 22:58 REF Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 OA20021 EPA 8260D O1/20/20 22:58 REF Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 OA20021 EPA 8260D O1/20/20 22:58 REF Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 OA20021 EPA 8260D O1/20/20 22:58 REF Bromoform [75-25-2]^ 0.22 u ug/L 1 0.22 1.0 OA20021 EPA 8260D O1/20/20 22:58 REF QV-01 Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 OA20021 EPA 8260D O1/20/20 22:58 REF Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 OA20021 EPA 8260D O1/20/20 22:58 REF Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 OA20021 EPA 8260D O1/20/20 22:58 REF Chlorobenzene[108-90-7]A 0.17 u ug/L 1 0.17 1.0 OA20021 EPA 8260D O1/20/20 22:58 REF Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 OA20021 EPA 8260D O1/20/20 22:58 REF QV-01 Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 OA20021 EPA 8260D O1/20/20 22:58 REF Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 OA20021 EPA 8260D O1/20/20 22:58 REF cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 OA20021 EPA 8260D O1/20/20 22:58 REF cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 OA20021 EPA 8260D O1/20/20 22:58 REF Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 OA20021 EPA 8260D O1/20/20 22:58 REF Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 OA20021 EPA 8260D O1/20/20 22:58 REF Ethylbenzene[100-41-4]A 0.13 u ug/L 1 0.13 1.0 OA20021 EPA 8260D O1/20/20 22:58 REF Iodomethane [74-88-4]^ 1.7 u ug/L 1 1.7 5.0 OA20021 EPA 8260D O1/20/20 22:58 REF Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 OA20021 EPA 8260D O1/20/20 22:58 REF Styrene[100-42-5]A 0.11 u ug/L 1 0.11 1.0 OA20021 EPA 8260D O1/20/20 22:58 REF Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 OA20021 EPA 8260D O1/20/20 22:58 REF Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 OA20021 EPA 8260D O1/20/20 22:58 REF trans-1,2-Dichloroethene [156-60-5]^ 0.21 u ug/L 1 0.21 1.0 OA20021 EPA 8260D O1/20/20 22:58 REF trans-1,3-Dichloropropene [10061-02-6]^ 0.15 u ug/L 1 0.15 1.0 OA20021 EPA 8260D O1/20/20 22:58 REF trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 OA20021 EPA 8260D O1/20/20 22:58 REF Trichloroethene [79-01-6]^ 0.15 u ug/L 1 0.15 1.0 OA20021 EPA 8260D O1/20/20 22:58 REF Trichlorofluoromethane [75-69-4]^ 0.24 u ug/L 1 0.24 1.0 OA20021 EPA 8260D O1/20/20 22:58 REF Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 OA20021 EPA 8260D O1/20/20 22:58 REF Vinyl chloride [75-01-4]^ 0.32 u ug/L 1 0.32 1.0 OA20021 EPA 8260D O1/20/20 22:58 REF Xylenes (Total) [1330-20-7]A 0.45 u ug/L 1 0.45 3.0 OA20021 EPA 8260D O1/20/20 22:58 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 23 Of 82 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW23 Lab Sample ID:CDO0890-04 Received: 01/15/20 13:24 Matrix: Ground Water Sampled:01/14/20 12:20 Work Order: CDO0890 Project: Rowan County Active Landfills Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 53 1 50.0 106 % 53-136 OA20021 EPA 6260D 01120120 22:58 REF Dibromofluoromethane 52 1 50.0 105 % 67-129 OA20021 EPA 6260D 01120120 22:58 REF Toluene-& 47 1 50.0 93 % 59-134 OA20021 EPA 6260D 01120120 22:58 REF Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-O]^ 0.740 U ug/L 2 0.740 2.00 OA15050 EPA 6020B 01/22/20 14:20 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OA15051 EPA 6010D 01/17/20 12:41 JDH Barium [7440-39-3]^ 178 ug/L 1 1.10 10.0 OA15051 EPA 6010D 01/17/20 12:41 JDH Beryllium [7440-41-7]^ 0.195 J ug/L 1 0.160 1.00 OA15051 EPA 6010D 01/17/20 12:41 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OA15051 EPA 6010D 01/17/20 12:41 JDH Chromium [7440-47-3]^ 2.91 J ug/L 1 1.40 10.0 OA15051 EPA 6010D 01/17/20 12:41 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 OA15051 EPA 6010D 01/17/20 12:41 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 OA15051 EPA 6010D 01/17/20 12:41 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 OA15051 EPA 6010D 01/17/20 12:41 JDH Nickel[7440-02-O]^ 9.78 J ug/L 1 2.20 10.0 OA15051 EPA 6010D 01/17/20 12:41 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OA15051 EPA 6010D 01/17/20 12:41 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 OA15051 EPA 6010D 01/17/20 12:41 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 OA15050 EPA 6020B 01/22/20 14:20 RLF Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 OA15051 EPA 6010D 01/17/20 12:41 JDH Zinc[7440-66-6]^ 6.54 J ug/L 1 4.40 10.0 OA15051 EPA 6010D 01/17/20 12:41 JDH FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 24 of $2 00� www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW23A Lab Sample ID:CD00890-05 Received: 01/15/20 13:24 Matrix: Ground Water Sampled:01/14/20 11:30 Work Order: CD00890 Project: Rowan County Active Landfills Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 OA20021 EPA 8260D O1/20/20 23:29 REF 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 OA20021 EPA 8260D O1/20/20 23:29 REF 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 OA20021 EPA 8260D O1/20/20 23:29 REF 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 OA20021 EPA 8260D O1/20/20 23:29 REF 1,1-Dichloroethane [75-34-3]^ 0.13 u ug/L 1 0.13 1.0 OA20021 EPA 8260D O1/20/20 23:29 REF 1,1-Dichloroethene [75-35-4]^ 0.21 u ug/L 1 0.21 1.0 OA20021 EPA 8260D O1/20/20 23:29 REF 1,2,3-Trichloropropane [96-18-4]^ 0.23 u ug/L 1 0.23 1.0 OA20021 EPA 8260D O1/20/20 23:29 REF 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 u ug/L 1 0.48 1.0 OA20021 EPA 8260D O1/20/20 23:29 REF 1,2-Dibromoethane [106-93-4]^ 0.66 u ug/L 1 0.66 1.0 OA20021 EPA 8260D O1/20/20 23:29 REF 1,2-Dichlorobenzene [95-50-1]^ 0.19 u ug/L 1 0.19 1.0 OA20021 EPA 8260D O1/20/20 23:29 REF 1,2-Dichloroethane [107-06-2]^ 0.21 u ug/L 1 0.21 1.0 OA20021 EPA 8260D O1/20/20 23:29 REF 1,2-Dichloropropane [78-87-5]^ 0.10 u ug/L 1 0.10 1.0 OA20021 EPA 8260D O1/20/20 23:29 REF 1,4-Dichlorobenzene [106-46-7]^ 0.19 u ug/L 1 0.19 1.0 OA20021 EPA 8260D O1/20/20 23:29 REF 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 OA20021 EPA 8260D O1/20/20 23:29 REF 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 OA20021 EPA 8260D O1/20/20 23:29 REF 4-Methyl-2-pentanone [108-10-1]^ 1.1 u ug/L 1 1.1 5.0 OA20021 EPA 8260D O1/20/20 23:29 REF Acetone [67-64-1]A 10 u ug/L 1 10 20 OA20021 EPA 8260D O1/20/20 23:29 REF Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 OA20021 EPA 8260D O1/20/20 23:29 REF Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 OA20021 EPA 8260D O1/20/20 23:29 REF Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 OA20021 EPA 8260D O1/20/20 23:29 REF Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 OA20021 EPA 8260D O1/20/20 23:29 REF Bromoform [75-25-2]^ 0.22 u ug/L 1 0.22 1.0 OA20021 EPA 8260D O1/20/20 23:29 REF QV-01 Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 OA20021 EPA 8260D O1/20/20 23:29 REF Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 OA20021 EPA 8260D O1/20/20 23:29 REF Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 OA20021 EPA 8260D O1/20/20 23:29 REF Chlorobenzene[108-90-7]A 0.17 u ug/L 1 0.17 1.0 OA20021 EPA 8260D O1/20/20 23:29 REF Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 OA20021 EPA 8260D O1/20/20 23:29 REF QV-01 Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 OA20021 EPA 8260D O1/20/20 23:29 REF Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 OA20021 EPA 8260D O1/20/20 23:29 REF cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 OA20021 EPA 8260D O1/20/20 23:29 REF cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 OA20021 EPA 8260D O1/20/20 23:29 REF Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 OA20021 EPA 8260D O1/20/20 23:29 REF Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 OA20021 EPA 8260D O1/20/20 23:29 REF Ethylbenzene[100-41-4]A 0.13 u ug/L 1 0.13 1.0 OA20021 EPA 8260D O1/20/20 23:29 REF Iodomethane [74-88-4]^ 1.7 u ug/L 1 1.7 5.0 OA20021 EPA 8260D O1/20/20 23:29 REF Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 OA20021 EPA 8260D O1/20/20 23:29 REF Styrene[100-42-5]A 0.11 u ug/L 1 0.11 1.0 OA20021 EPA 8260D O1/20/20 23:29 REF Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 OA20021 EPA 8260D O1/20/20 23:29 REF Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 OA20021 EPA 8260D O1/20/20 23:29 REF trans-1,2-Dichloroethene [156-60-5]^ 0.21 u ug/L 1 0.21 1.0 OA20021 EPA 8260D O1/20/20 23:29 REF trans-1,3-Dichloropropene [10061-02-6]^ 0.15 u ug/L 1 0.15 1.0 OA20021 EPA 8260D O1/20/20 23:29 REF trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 OA20021 EPA 8260D O1/20/20 23:29 REF Trichloroethene [79-01-6]^ 0.15 u ug/L 1 0.15 1.0 OA20021 EPA 8260D O1/20/20 23:29 REF Trichlorofluoromethane [75-69-4]^ 0.24 u ug/L 1 0.24 1.0 OA20021 EPA 8260D O1/20/20 23:29 REF Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 OA20021 EPA 8260D O1/20/20 23:29 REF Vinyl chloride [75-01-4]^ 0.32 u ug/L 1 0.32 1.0 OA20021 EPA 8260D O1/20/20 23:29 REF Xylenes (Total) [1330-20-7]A 0.45 u ug/L 1 0.45 3.0 OA20021 EPA 8260D O1/20/20 23:29 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 25 Of 82 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW23A Lab Sample ID:CDO0890-05 Received: 01/15/20 13:24 Matrix: Ground Water Sampled:01/14/20 11:30 Work Order: CDO0890 Project: Rowan County Active Landfills Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 52 1 50.0 104 % 53-136 OA20021 EPA 6260D 01120120 23:29 REF Dibromofluoromethane 54 1 50.0 106 % 67-129 OA20021 EPA 6260D 01120120 23:29 REF Toluene-& 48 1 50.0 96 % 59-134 OA20021 EPA 6260D 01120120 23:29 REF Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-O]^ 0.740 U ug/L 2 0.740 2.00 OA15050 EPA 6020B 01/22/20 14:38 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OA15051 EPA 6010D 01/17/20 13:05 JDH Barium [7440-39-3]^ 20.5 ug/L 1 1.10 10.0 OA15051 EPA 6010D 01/17/20 13:05 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 OA15051 EPA 6010D 01/17/20 13:05 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OA15051 EPA 6010D 01/17/20 13:05 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 OA15051 EPA 6010D 01/17/20 13:05 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 OA15051 EPA 6010D 01/17/20 13:05 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 OA15051 EPA 6010D 01/17/20 13:05 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 OA15051 EPA 6010D 01/17/20 13:05 JDH Nickel[7440-02-O]^ 2.20 U ug/L 1 2.20 10.0 OA15051 EPA 6010D 01/17/20 13:05 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OA15051 EPA 6010D 01/17/20 13:05 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 OA15051 EPA 6010D 01/17/20 13:05 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 OA15050 EPA 6020B 01/22/20 14:38 RLF Vanadium [7440-62-2]^ 5.80 J ug/L 1 1.40 10.0 OA15051 EPA 6010D 01/17/20 13:05 JDH Zinc[7440-66-6]^ 5.30 J ug/L 1 4.40 10.0 OA15051 EPA 6010D 01/17/20 13:05 JDH FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 26 of 82 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW25 Lab Sample ID:CD00890-06 Received: 01/15/20 13:24 Matrix: Ground Water Sampled:01/14/20 15:20 Work Order: CD00890 Project: Rowan County Active Landfills Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 10:02 REF 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 OA16021 EPA 8260D O1/17/20 10:02 REF 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 OA16021 EPA 8260D O1/17/20 10:02 REF 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 OA16021 EPA 8260D O1/17/20 10:02 REF 1,1-Dichloroethane [75-34-3]^ 0.13 u ug/L 1 0.13 1.0 OA16021 EPA 8260D O1/17/20 10:02 REF 1,1-Dichloroethene [75-35-4]^ 0.21 u ug/L 1 0.21 1.0 OA16021 EPA 8260D O1/17/20 10:02 REF 1,2,3-Trichloropropane [96-18-4]^ 0.23 u ug/L 1 0.23 1.0 OA16021 EPA 8260D O1/17/20 10:02 REF 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 u ug/L 1 0.48 1.0 OA16021 EPA 8260D O1/17/20 10:02 REF 1,2-Dibromoethane [106-93-4]^ 0.66 u ug/L 1 0.66 1.0 OA16021 EPA 8260D O1/17/20 10:02 REF 1,2-Dichlorobenzene [95-50-1]^ 0.19 u ug/L 1 0.19 1.0 OA16021 EPA 8260D O1/17/20 10:02 REF 1,2-Dichloroethane [107-06-2]^ 0.21 u ug/L 1 0.21 1.0 OA16021 EPA 8260D O1/17/20 10:02 REF 1,2-Dichloropropane [78-87-5]^ 0.10 u ug/L 1 0.10 1.0 OA16021 EPA 8260D O1/17/20 10:02 REF 1,4-Dichlorobenzene [106-46-7]^ 0.19 u ug/L 1 0.19 1.0 OA16021 EPA 8260D O1/17/20 10:02 REF 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 OA16021 EPA 8260D O1/17/20 10:02 REF 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 OA16021 EPA 8260D O1/17/20 10:02 REF 4-Methyl-2-pentanone [108-10-1]^ 1.1 u ug/L 1 1.1 5.0 OA16021 EPA 8260D O1/17/20 10:02 REF Acetone [67-64-1]A 10 u ug/L 1 10 20 OA16021 EPA 8260D O1/17/20 10:02 REF Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 OA16021 EPA 8260D O1/17/20 10:02 REF Benzene [71-43-2]A 0.15 u ug/L 1 0.15 1.0 OA16021 EPA 8260D O1/17/20 10:02 REF Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 OA16021 EPA 8260D O1/17/20 10:02 REF Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 10:02 REF Bromoform [75-25-2]^ 0.22 u ug/L 1 0.22 1.0 OA16021 EPA 8260D O1/17/20 10:02 REF QV-01 Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 OA16021 EPA 8260D O1/17/20 10:02 REF Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 OA16021 EPA 8260D O1/17/20 10:02 REF Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 10:02 REF Chlorobenzene [108-90-7]A 0.17 u ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 10:02 REF Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 OA16021 EPA 8260D O1/17/20 10:02 REF Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 OA16021 EPA 8260D O1/17/20 10:02 REF Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 OA16021 EPA 8260D O1/17/20 10:02 REF cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 OA16021 EPA 8260D O1/17/20 10:02 REF cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 OA16021 EPA 8260D O1/17/20 10:02 REF Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 10:02 REF Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 OA16021 EPA 8260D O1/17/20 10:02 REF Ethylbenzene [100-41-4]A 0.13 u ug/L 1 0.13 1.0 OA16021 EPA 8260D O1/17/20 10:02 REF Iodomethane [74-88-4]^ 1.7 u ug/L 1 1.7 5.0 OA16021 EPA 8260D O1/17/20 10:02 REF Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 OA16021 EPA 8260D O1/17/20 10:02 REF Styrene [100-42-5]A 0.11 u ug/L 1 0.11 1.0 OA16021 EPA 8260D O1/17/20 10:02 REF Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 10:02 REF Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 OA16021 EPA 8260D O1/17/20 10:02 REF trans-1,2-Dichloroethene [156-60-5]^ 0.21 u ug/L 1 0.21 1.0 OA16021 EPA 8260D O1/17/20 10:02 REF trans-1,3-Dichloropropene [10061-02-6]^ 0.15 u ug/L 1 0.15 1.0 OA16021 EPA 8260D O1/17/20 10:02 REF trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 OA16021 EPA 8260D O1/17/20 10:02 REF Trichloroethene [79-01-6]^ 0.15 u ug/L 1 0.15 1.0 OA16021 EPA 8260D O1/17/20 10:02 REF Trichlorofluoromethane [75-69-4]^ 0.24 u ug/L 1 0.24 1.0 OA16021 EPA 8260D O1/17/20 10:02 REF Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 OA16021 EPA 8260D O1/17/20 10:02 REF Vinyl chloride [75-01-4]^ 0.32 u ug/L 1 0.32 1.0 OA16021 EPA 8260D O1/17/20 10:02 REF Xylenes (Total) [1330-20-7]A 0.45 u ug/L 1 0.45 3.0 OA16021 EPA 8260D O1/17/20 10:02 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 27 Of 82 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW25 Lab Sample ID:CDO0890-06 Received: 01/15/20 13:24 Matrix: Ground Water Sampled:01/14/20 15:20 Work Order: CDO0890 Project: Rowan County Active Landfills Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 52 1 50.0 105 % 53-136 OA16021 EPA 6260D 01/17/20 10:02 REF Dibromofluoromethane 53 1 50.0 105 % 67-129 OA16021 EPA 6260D 0111712010:02 REF Toluene-& 49 1 50.0 98 % 59-134 OA16021 EPA 6260D 0111712010:02 REF Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-O]^ 0.740 U ug/L 2 0.740 2.00 OA15050 EPA 6020B 01/22/20 14:42 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OA15051 EPA 6010D 01/17/20 13:07 JDH Barium [7440-39-3]^ 28.2 ug/L 1 1.10 10.0 OA15051 EPA 6010D 01/17/20 13:07 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 OA15051 EPA 6010D 01/17/20 13:07 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OA15051 EPA 6010D 01/17/20 13:07 JDH Chromium [7440-47-3]^ 4.01 J ug/L 1 1.40 10.0 OA15051 EPA 6010D 01/17/20 13:07 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 OA15051 EPA 6010D 01/17/20 13:07 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 OA15051 EPA 6010D 01/17/20 13:07 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 OA15051 EPA 6010D 01/17/20 13:07 JDH Nickel[7440-02-O]^ 2.20 U ug/L 1 2.20 10.0 OA15051 EPA 6010D 01/17/20 13:07 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OA15051 EPA 6010D 01/17/20 13:07 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 OA15051 EPA 6010D 01/17/20 13:07 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 OA15050 EPA 6020B 01/22/20 14:42 RLF Vanadium [7440-62-2]^ 8.23 J ug/L 1 1.40 10.0 OA15051 EPA 6010D 01/17/20 13:07 JDH Zinc[7440-66-6]^ 4.66 J ug/L 1 4.40 10.0 OA15051 EPA 6010D 01/17/20 13:07 JDH FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 28 of 82 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW26 Lab Sample ID:CD00890-07 Received: 01/15/20 13:24 Matrix: Ground Water Sampled:01/14/20 12:02 Work Order: CD00890 Project: Rowan County Active Landfills Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 10:33 REF 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 OA16021 EPA 8260D O1/17/20 10:33 REF 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 OA16021 EPA 8260D O1/17/20 10:33 REF 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 OA16021 EPA 8260D O1/17/20 10:33 REF 1,1-Dichloroethane [75-34-3]^ 0.13 u ug/L 1 0.13 1.0 OA16021 EPA 8260D O1/17/20 10:33 REF 1,1-Dichloroethene [75-35-4]^ 0.21 u ug/L 1 0.21 1.0 OA16021 EPA 8260D O1/17/20 10:33 REF 1,2,3-Trichloropropane [96-18-4]^ 0.23 u ug/L 1 0.23 1.0 OA16021 EPA 8260D O1/17/20 10:33 REF 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 u ug/L 1 0.48 1.0 OA16021 EPA 8260D O1/17/20 10:33 REF 1,2-Dibromoethane [106-93-4]^ 0.66 u ug/L 1 0.66 1.0 OA16021 EPA 8260D O1/17/20 10:33 REF 1,2-Dichlorobenzene [95-50-1]^ 0.19 u ug/L 1 0.19 1.0 OA16021 EPA 8260D O1/17/20 10:33 REF 1,2-Dichloroethane [107-06-2]^ 0.21 u ug/L 1 0.21 1.0 OA16021 EPA 8260D O1/17/20 10:33 REF 1,2-Dichloropropane [78-87-5]^ 0.10 u ug/L 1 0.10 1.0 OA16021 EPA 8260D O1/17/20 10:33 REF 1,4-Dichlorobenzene [106-46-7]^ 0.19 u ug/L 1 0.19 1.0 OA16021 EPA 8260D O1/17/20 10:33 REF 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 OA16021 EPA 8260D O1/17/20 10:33 REF 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 OA16021 EPA 8260D O1/17/20 10:33 REF 4-Methyl-2-pentanone [108-10-1]^ 1.1 u ug/L 1 1.1 5.0 OA16021 EPA 8260D O1/17/20 10:33 REF Acetone [67-64-1]A 10 u ug/L 1 10 20 OA16021 EPA 8260D O1/17/20 10:33 REF Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 OA16021 EPA 8260D O1/17/20 10:33 REF Benzene [71-43-2]A 0.15 u ug/L 1 0.15 1.0 OA16021 EPA 8260D O1/17/20 10:33 REF Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 OA16021 EPA 8260D O1/17/20 10:33 REF Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 10:33 REF Bromoform [75-25-2]^ 0.22 u ug/L 1 0.22 1.0 OA16021 EPA 8260D O1/17/20 10:33 REF QV-01 Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 OA16021 EPA 8260D O1/17/20 10:33 REF Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 OA16021 EPA 8260D O1/17/20 10:33 REF Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 10:33 REF Chlorobenzene [108-90-7]A 0.17 u ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 10:33 REF Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 OA16021 EPA 8260D O1/17/20 10:33 REF Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 OA16021 EPA 8260D O1/17/20 10:33 REF Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 OA16021 EPA 8260D O1/17/20 10:33 REF cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 OA16021 EPA 8260D O1/17/20 10:33 REF cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 OA16021 EPA 8260D O1/17/20 10:33 REF Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 10:33 REF Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 OA16021 EPA 8260D O1/17/20 10:33 REF Ethylbenzene [100-41-4]A 0.13 u ug/L 1 0.13 1.0 OA16021 EPA 8260D O1/17/20 10:33 REF Iodomethane [74-88-4]^ 1.7 u ug/L 1 1.7 5.0 OA16021 EPA 8260D O1/17/20 10:33 REF Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 OA16021 EPA 8260D O1/17/20 10:33 REF Styrene [100-42-5]A 0.11 u ug/L 1 0.11 1.0 OA16021 EPA 8260D O1/17/20 10:33 REF Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 10:33 REF Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 OA16021 EPA 8260D O1/17/20 10:33 REF trans-1,2-Dichloroethene [156-60-5]^ 0.21 u ug/L 1 0.21 1.0 OA16021 EPA 8260D O1/17/20 10:33 REF trans-1,3-Dichloropropene [10061-02-6]^ 0.15 u ug/L 1 0.15 1.0 OA16021 EPA 8260D O1/17/20 10:33 REF trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 OA16021 EPA 8260D O1/17/20 10:33 REF Trichloroethene [79-01-6]^ 0.15 u ug/L 1 0.15 1.0 OA16021 EPA 8260D O1/17/20 10:33 REF Trichlorofluoromethane [75-69-4]^ 0.24 u ug/L 1 0.24 1.0 OA16021 EPA 8260D O1/17/20 10:33 REF Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 OA16021 EPA 8260D O1/17/20 10:33 REF Vinyl chloride [75-01-4]^ 0.32 u ug/L 1 0.32 1.0 OA16021 EPA 8260D O1/17/20 10:33 REF Xylenes (Total) [1330-20-7]A 0.45 u ug/L 1 0.45 3.0 OA16021 EPA 8260D O1/17/20 10:33 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 29 Of 82 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW26 Lab Sample ID:CDO0890-07 Received: 01/15/20 13:24 Matrix: Ground Water Sampled:01/14/20 12:02 Work Order: CDO0890 Project: Rowan County Active Landfills Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 55 1 50.0 109 % 53-136 OA16021 EPA 6260D 011171201033 REF Dibromofluoromethane 53 1 50.0 105 % 67-129 OA16021 EPA 6260D 0111712010:33 REF Toluene-& 48 1 50.0 96 % 59-134 OA16021 EPA 6260D 011171201033 REF Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-O]^ 0.740 U ug/L 2 0.740 2.00 OA15050 EPA 6020B 01/22/20 14:46 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OA15052 EPA 6010D 01/17/20 13:21 JDH Barium [7440-39-3]^ 55.2 ug/L 1 1.10 10.0 OA15052 EPA 6010D 01/17/20 13:21 JDH Beryllium [7440-41-7]^ 0.196 J ug/L 1 0.160 1.00 OA15052 EPA 6010D 01/17/20 13:21 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OA15052 EPA 6010D 01/17/20 13:21 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 OA15052 EPA 6010D 01/17/20 13:21 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 OA15052 EPA 6010D 01/17/20 13:21 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 OA15052 EPA 6010D 01/17/20 13:21 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 OA15052 EPA 6010D 01/17/20 13:21 JDH Nickel[7440-02-O]^ 2.20 U ug/L 1 2.20 10.0 OA15052 EPA 6010D 01/17/20 13:21 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OA15052 EPA 6010D 01/17/20 13:21 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 OA15052 EPA 6010D 01/17/20 13:21 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 OA15050 EPA 6020B 01/22/20 14:46 RLF Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 OA15052 EPA 6010D 01/17/20 13:21 JDH Zinc[7440-66-6]^ 7.60 J ug/L 1 4.40 10.0 OA15052 EPA 6010D 01/17/20 13:21 JDH FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 30 of $2 00� www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW28R Lab Sample ID:CD00890-08 Received: 01/15/20 13:24 Matrix: Ground Water Sampled:01/14/20 12:58 Work Order: CD00890 Project: Rowan County Active Landfills Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 OA20021 EPA 8260D O1/21/20 00:01 REF 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 OA20021 EPA 8260D O1/21/20 00:01 REF 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 OA20021 EPA 8260D O1/21/20 00:01 REF 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 OA20021 EPA 8260D O1/21/20 00:01 REF 1,1-Dichloroethane [75-34-3]^ 0.13 u ug/L 1 0.13 1.0 OA20021 EPA 8260D O1/21/20 00:01 REF 1,1-Dichloroethene [75-35-4]^ 0.21 u ug/L 1 0.21 1.0 OA20021 EPA 8260D O1/21/20 00:01 REF 1,2,3-Trichloropropane [96-18-4]^ 0.23 u ug/L 1 0.23 1.0 OA20021 EPA 8260D O1/21/20 00:01 REF 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 u ug/L 1 0.48 1.0 OA20021 EPA 8260D O1/21/20 00:01 REF 1,2-Dibromoethane [106-93-4]^ 0.66 u ug/L 1 0.66 1.0 OA20021 EPA 8260D O1/21/20 00:01 REF 1,2-Dichlorobenzene [95-50-1]^ 0.19 u ug/L 1 0.19 1.0 OA20021 EPA 8260D O1/21/20 00:01 REF 1,2-Dichloroethane [107-06-2]^ 0.21 u ug/L 1 0.21 1.0 OA20021 EPA 8260D O1/21/20 00:01 REF 1,2-Dichloropropane [78-87-5]^ 0.10 u ug/L 1 0.10 1.0 OA20021 EPA 8260D O1/21/20 00:01 REF 1,4-Dichlorobenzene [106-46-7]^ 0.19 u ug/L 1 0.19 1.0 OA20021 EPA 8260D O1/21/20 00:01 REF 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 OA20021 EPA 8260D O1/21/20 00:01 REF 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 OA20021 EPA 8260D O1/21/20 00:01 REF 4-Methyl-2-pentanone [108-10-1]^ 1.1 u ug/L 1 1.1 5.0 OA20021 EPA 8260D O1/21/20 00:01 REF Acetone [67-64-1]A 10 u ug/L 1 10 20 OA20021 EPA 8260D O1/21/20 00:01 REF Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 OA20021 EPA 8260D O1/21/20 00:01 REF Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 OA20021 EPA 8260D O1/21/20 00:01 REF Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 OA20021 EPA 8260D O1/21/20 00:01 REF Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 OA20021 EPA 8260D O1/21/20 00:01 REF Bromoform [75-25-2]^ 0.22 u ug/L 1 0.22 1.0 OA20021 EPA 8260D O1/21/20 00:01 REF QV-01 Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 OA20021 EPA 8260D O1/21/20 00:01 REF Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 OA20021 EPA 8260D O1/21/20 00:01 REF Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 OA20021 EPA 8260D O1/21/20 00:01 REF Chlorobenzene [108-90-7]A 0.17 u ug/L 1 0.17 1.0 OA20021 EPA 8260D O1/21/20 00:01 REF Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 OA20021 EPA 8260D O1/21/20 00:01 REF QV-01 Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 OA20021 EPA 8260D O1/21/20 00:01 REF Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 OA20021 EPA 8260D O1/21/20 00:01 REF cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 OA20021 EPA 8260D O1/21/20 00:01 REF cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 OA20021 EPA 8260D O1/21/20 00:01 REF Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 OA20021 EPA 8260D O1/21/20 00:01 REF Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 OA20021 EPA 8260D O1/21/20 00:01 REF Ethylbenzene [100-41-4]A 0.13 u ug/L 1 0.13 1.0 OA20021 EPA 8260D O1/21/20 00:01 REF Iodomethane [74-88-4]^ 1.7 u ug/L 1 1.7 5.0 OA20021 EPA 8260D O1/21/20 00:01 REF Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 OA20021 EPA 8260D O1/21/20 00:01 REF Styrene[100-42-5]A 0.11 u ug/L 1 0.11 1.0 OA20021 EPA 8260D O1/21/20 00:01 REF Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 OA20021 EPA 8260D O1/21/20 00:01 REF Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 OA20021 EPA 8260D O1/21/20 00:01 REF trans-1,2-Dichloroethene [156-60-5]^ 0.21 u ug/L 1 0.21 1.0 OA20021 EPA 8260D O1/21/20 00:01 REF trans-1,3-Dichloropropene [10061-02-6]^ 0.15 u ug/L 1 0.15 1.0 OA20021 EPA 8260D O1/21/20 00:01 REF trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 OA20021 EPA 8260D O1/21/20 00:01 REF Trichloroethene [79-01-6]^ 0.15 u ug/L 1 0.15 1.0 OA20021 EPA 8260D O1/21/20 00:01 REF Trichlorofluoromethane [75-69-4]^ 0.24 u ug/L 1 0.24 1.0 OA20021 EPA 8260D O1/21/20 00:01 REF Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 OA20021 EPA 8260D O1/21/20 00:01 REF Vinyl chloride [75-01-4]^ 0.32 u ug/L 1 0.32 1.0 OA20021 EPA 8260D O1/21/20 00:01 REF Xylenes (Total) [1330-20-7]A 0.45 u ug/L 1 0.45 3.0 OA20021 EPA 8260D O1/21/20 00:01 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 31 Of 82 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW28R Lab Sample ID:CDO0890-08 Received: 01/15/20 13:24 Matrix: Ground Water Sampled:01/14/20 12:58 Work Order: CDO0890 Project: Rowan County Active Landfills Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 53 1 50.0 107 % 53-136 OA20021 EPA 6260D 01121120 00:01 REF Dibromofluoromethane 54 1 50.0 109 % 67-129 OA20021 EPA 6260D 01121120 00:01 REF Toluene-& 48 1 50.0 97 % 59-134 OA20021 EPA 6260D 01121120 00:01 REF Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-O]^ 0.740 U ug/L 2 0.740 2.00 OA15050 EPA 6020B 01/22/20 14:51 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OA15052 EPA 6010D 01/17/20 14:34 JDH Barium [7440-39-3]^ 219 ug/L 1 1.10 10.0 OA15052 EPA 6010D 01/17/20 14:34 JDH Beryllium [7440-41-7]^ 0.511 J ug/L 1 0.160 1.00 OA15052 EPA 6010D 01/17/20 14:34 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OA15052 EPA 6010D 01/17/20 14:34 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 OA15052 EPA 6010D 01/17/20 14:34 JDH Cobalt[7440-48-4]^ 1.85 J ug/L 1 1.40 10.0 OA15052 EPA 6010D 01/17/20 14:34 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 OA15052 EPA 6010D 01/17/20 14:34 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 OA15052 EPA 6010D 01/17/20 14:34 JDH Nickel[7440-02-O]^ 2.51 J ug/L 1 2.20 10.0 OA15052 EPA 6010D 01/17/20 14:34 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OA15052 EPA 6010D 01/17/20 14:34 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 OA15052 EPA 6010D 01/17/20 14:34 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 OA15050 EPA 6020B 01/22/20 14:51 RLF Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 OA15052 EPA 6010D 01/17/20 14:34 JDH Zinc[7440-66-6]^ 5.21 J ug/L 1 4.40 10.0 OA15052 EPA 6010D 01/17/20 14:34 JDH FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 32 of $2 00� www.encolabs.com ANALYTICAL RESULTS Description: 8003-Trip Blank Lab Sample ID:CD00890-09 Received: 01/15/20 13:24 Matrix: Water Sampled:01/14/20 11:30 Work Order: CD00890 Project: Rowan County Active Landfills Sampled By: ENCO Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analyte FCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 03:48 REF 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 OA16021 EPA 8260D O1/17/20 03:48 REF 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 OA16021 EPA 8260D O1/17/20 03:48 REF 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 OA16021 EPA 8260D O1/17/20 03:48 REF 1,1-Dichloroethane [75-34-3]A 0.13 u ug/L 1 0.13 1.0 OA16021 EPA 8260D O1/17/20 03:48 REF 1,1-Dichloroethene [75-35-4]A 0.21 u ug/L 1 0.21 1.0 OA16021 EPA 8260D O1/17/20 03:48 REF 1,2,3-Trichloropropane [96-18-4]A 0.23 u ug/L 1 0.23 1.0 OA16021 EPA 8260D O1/17/20 03:48 REF 1,2-Dibromo-3-chloropropane [96-12-8]A 0.48 u ug/L 1 0.48 1.0 OA16021 EPA 8260D O1/17/20 03:48 REF 1,2-Dibromoethane [106-93-4]A 0.66 u ug/L 1 0.66 1.0 OA16021 EPA 8260D O1/17/20 03:48 REF 1,2-Dichlorobenzene [95-50-1]A 0.19 u ug/L 1 0.19 1.0 OA16021 EPA 8260D O1/17/20 03:48 REF 1,2-Dichloroethane [107-06-2]A 0.21 u ug/L 1 0.21 1.0 OA16021 EPA 8260D O1/17/20 03:48 REF 1,2-Dichloropropane [78-87-5]A 0.10 u ug/L 1 0.10 1.0 OA16021 EPA 8260D O1/17/20 03:48 REF 1,4-Dichlorobenzene [106-46-7]A 0.19 u ug/L 1 0.19 1.0 OA16021 EPA 8260D O1/17/20 03:48 REF 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 OA16021 EPA 8260D O1/17/20 03:48 REF 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 OA16021 EPA 8260D O1/17/20 03:48 REF 4-Methyl-2-pentanone [108-10-1]A 1.1 u ug/L 1 1.1 5.0 OA16021 EPA 8260D O1/17/20 03:48 REF Acetone [67-64-1]A 10 u ug/L 1 10 20 OA16021 EPA 8260D O1/17/20 03:48 REF Acrylonitrile [107-13-1]A 3.5 u ug/L 1 3.5 10 OA16021 EPA 8260D O1/17/20 03:48 REF Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 OA16021 EPA 8260D O1/17/20 03:48 REF Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 OA16021 EPA 8260D O1/17/20 03:48 REF Bromodichloromethane [75-27-4]A 0.17 u ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 03:48 REF Bromoform [75-25-2]A 0.22 u ug/L 1 0.22 1.0 OA16021 EPA 8260D O1/17/20 03:48 REF QV-01 Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 OA16021 EPA 8260D O1/17/20 03:48 REF Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 OA16021 EPA 8260D O1/17/20 03:48 REF Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 03:48 REF Chlorobenzene [108-90-7]A 0.17 u ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 03:48 REF Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 OA16021 EPA 8260D O1/17/20 03:48 REF Chloroform [67-66-3]A 0.18 u ug/L 1 0.18 1.0 OA16021 EPA 8260D O1/17/20 03:48 REF Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 OA16021 EPA 8260D O1/17/20 03:48 REF cis-1,2-Dichloroethene [156-59-2]A 0.15 u ug/L 1 0.15 1.0 OA16021 EPA 8260D O1/17/20 03:48 REF cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 OA16021 EPA 8260D O1/17/20 03:48 REF Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 03:48 REF Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 OA16021 EPA 8260D O1/17/20 03:48 REF Ethylbenzene [100-41-4]A 0.13 u ug/L 1 0.13 1.0 OA16021 EPA 8260D O1/17/20 03:48 REF Iodomethane [74-88-4]A 1.7 u ug/L 1 1.7 5.0 OA16021 EPA 8260D O1/17/20 03:48 REF Methylene chloride [75-09-2]A 0.50 J ug/L 1 0.23 1.0 OA16021 EPA 8260D O1/17/20 03:48 REF 0-01 Styrene [100-42-5]A 0.11 u ug/L 1 0.11 1.0 OA16021 EPA 8260D O1/17/20 03:48 REF Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 03:48 REF Tetrahydrofuran [109-99-9]A 0.53 u ug/L 1 0.53 1.0 OA16021 EPA 8260D O1/17/20 03:48 REF Toluene [108-88-3]A 0.14 u ug/L 1 0.14 1.0 OA16021 EPA 8260D O1/17/20 03:48 REF trans-1,2-Dichloroethene [156-60-5]A 0.21 u ug/L 1 0.21 1.0 OA16021 EPA 8260D O1/17/20 03:48 REF trans-1,3-Dichloropropene [10061-02-6]A 0.15 u ug/L 1 0.15 1.0 OA16021 EPA 8260D O1/17/20 03:48 REF trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 OA16021 EPA 8260D O1/17/20 03:48 REF Trichloroethene [79-01-6]A 0.15 u ug/L 1 0.15 1.0 OA16021 EPA 8260D O1/17/20 03:48 REF Trichlorofluoromethane [75-69-4]A 0.24 u ug/L 1 0.24 1.0 OA16021 EPA 8260D O1/17/20 03:48 REF Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 OA16021 EPA 8260D O1/17/20 03:48 REF Vinyl chloride [75-01-4]A 0.32 u ug/L 1 0.32 1.0 OA16021 EPA 8260D O1/17/20 03:48 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 33 Of 82 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-Trip Blank Lab Sample ID:CDO0890-09 Received: 01/15/20 13:24 Matrix: Water Sampled:01/14/20 11:30 Work Order: CDO0890 Project: Rowan County Active Landfills Sampled By: ENCO Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed AX Notes Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 OA16021 EPA 8260D 01/17/20 03:48 REF Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 51 1 50.0 102 % 53-136 OA16021 EPA 6260D 01117120 03:48 REF Dlbromofluoromethane 52 1 50.0 103 % 67-129 OA16021 EPA 6260D 01117120 03:48 REF Toluene-d8 50 1 50.0 99 % 59-134 OA16021 EPA 8260D 01117120 03:48 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 34 Of 82 00� www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW16 Lab Sample ID:CD01083-01 Received: 01/17/20 13:45 Matrix: Ground Water Sampled:01/16/20 09:52 Work Order: CD01083 Project: Rowan County Active Landfills Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Ay Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 OA21038 EPA 8260D O1/22/20 00:49 REF 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 OA21038 EPA 8260D O1/22/20 00:49 REF 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 OA21038 EPA 8260D O1/22/20 00:49 REF 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 OA21038 EPA 8260D O1/22/20 00:49 REF 1,1-Dichloroethane [75-34-3]^ 0.13 u ug/L 1 0.13 1.0 OA21038 EPA 8260D O1/22/20 00:49 REF 1,1-Dichloroethene [75-35-4]^ 0.21 u ug/L 1 0.21 1.0 OA21038 EPA 8260D O1/22/20 00:49 REF 1,2,3-Trichloropropane [96-18-4]^ 0.23 u ug/L 1 0.23 1.0 OA21038 EPA 8260D O1/22/20 00:49 REF 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 u ug/L 1 0.48 1.0 OA21038 EPA 8260D O1/22/20 00:49 REF 1,2-Dibromoethane [106-93-4]^ 0.66 u ug/L 1 0.66 1.0 OA21038 EPA 8260D O1/22/20 00:49 REF 1,2-Dichlorobenzene [95-50-1]^ 0.19 u ug/L 1 0.19 1.0 OA21038 EPA 8260D O1/22/20 00:49 REF 1,2-Dichloroethane [107-06-2]^ 0.21 u ug/L 1 0.21 1.0 OA21038 EPA 8260D O1/22/20 00:49 REF 1,2-Dichloropropane [78-87-5]^ 0.10 u ug/L 1 0.10 1.0 OA21038 EPA 8260D O1/22/20 00:49 REF 1,4-Dichlorobenzene [106-46-7]^ 0.19 u ug/L 1 0.19 1.0 OA21038 EPA 8260D O1/22/20 00:49 REF 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 OA21038 EPA 8260D O1/22/20 00:49 REF 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 OA21038 EPA 8260D O1/22/20 00:49 REF 4-Methyl-2-pentanone [108-10-1]^ 1.1 u ug/L 1 1.1 5.0 OA21038 EPA 8260D O1/22/20 00:49 REF Acetone [67-64-1]A 10 u ug/L 1 10 20 OA21038 EPA 8260D O1/22/20 00:49 REF Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 OA21038 EPA 8260D O1/22/20 00:49 REF Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 OA21038 EPA 8260D O1/22/20 00:49 REF Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 OA21038 EPA 8260D O1/22/20 00:49 REF Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 OA21038 EPA 8260D O1/22/20 00:49 REF Bromoform [75-25-2]^ 0.22 u ug/L 1 0.22 1.0 OA21038 EPA 8260D O1/22/20 00:49 REF Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 OA21038 EPA 8260D O1/22/20 00:49 REF Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 OA21038 EPA 8260D O1/22/20 00:49 REF Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 OA21038 EPA 8260D O1/22/20 00:49 REF Chlorobenzene[108-90-7]A 0.17 u ug/L 1 0.17 1.0 OA21038 EPA 8260D O1/22/20 00:49 REF Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 OA21038 EPA 8260D O1/22/20 00:49 REF QV-01 Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 OA21038 EPA 8260D O1/22/20 00:49 REF Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 OA21038 EPA 8260D O1/22/20 00:49 REF cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 OA21038 EPA 8260D O1/22/20 00:49 REF cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 OA21038 EPA 8260D O1/22/20 00:49 REF Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 OA21038 EPA 8260D O1/22/20 00:49 REF Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 OA21038 EPA 8260D O1/22/20 00:49 REF Ethylbenzene[100-41-4]A 0.13 u ug/L 1 0.13 1.0 OA21038 EPA 8260D O1/22/20 00:49 REF Iodomethane [74-88-4]^ 1.7 u ug/L 1 1.7 5.0 OA21038 EPA 8260D O1/22/20 00:49 REF Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 OA21038 EPA 8260D O1/22/20 00:49 REF Styrene [100-42-5]A 0.11 u ug/L 1 0.11 1.0 OA21038 EPA 8260D O1/22/20 00:49 REF Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 OA21038 EPA 8260D O1/22/20 00:49 REF Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 OA21038 EPA 8260D O1/22/20 00:49 REF trans-1,2-Dichloroethene [156-60-5]^ 0.21 u ug/L 1 0.21 1.0 OA21038 EPA 8260D O1/22/20 00:49 REF trans-1,3-Dichloropropene [10061-02-6]^ 0.15 u ug/L 1 0.15 1.0 OA21038 EPA 8260D O1/22/20 00:49 REF trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 OA21038 EPA 8260D O1/22/20 00:49 REF Trichloroethene [79-01-6]^ 0.15 u ug/L 1 0.15 1.0 OA21038 EPA 8260D O1/22/20 00:49 REF Trichlorofluoromethane [75-69-4]^ 0.24 u ug/L 1 0.24 1.0 OA21038 EPA 8260D O1/22/20 00:49 REF Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 OA21038 EPA 8260D O1/22/20 00:49 REF Vinyl chloride [75-01-4]^ 0.32 u ug/L 1 0.32 1.0 OA21038 EPA 8260D O1/22/20 00:49 REF Xylenes (Total) [1330-20-7]A 0.45 u ug/L 1 0.45 3.0 OA21038 EPA 8260D O1/22/20 00:49 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 35 Of 82 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW16 Lab Sample ID:CDO1083-01 Received: 01/17/20 13:45 Matrix: Ground Water Sampled:01/16/20 09:52 Work Order: CDO1083 Project: Rowan County Active Landfills Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 53 1 50.0 106 % 53-136 OA21038 EPA 6260D 01122120 00:49 REF Dibromofluoromethane 54 1 50.0 109 % 67-129 OA21038 EPA 6260D 01122120 00:49 REF Toluene-& 48 1 50.0 97 % 59-134 OA21038 EPA 6260D 01122120 00:49 REF Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-O]^ 0.740 U ug/L 2 0.740 2.00 OA22017 EPA 6020B 01/23/20 15:06 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OA17038 EPA 6010D 01/22/20 10:46 JDH Barium [7440-39-3]^ 14.9 ug/L 1 1.10 10.0 OA17038 EPA 6010D 01/22/20 10:46 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 OA17038 EPA 6010D 01/22/20 10:46 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OA17038 EPA 6010D 01/22/20 10:46 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 OA17038 EPA 6010D 01/22/20 10:46 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 OA17038 EPA 6010D 01/22/20 10:46 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 OA17038 EPA 6010D 01/22/20 10:46 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 OA17038 EPA 6010D 01/22/20 10:46 JDH Nickel[7440-02-O]^ 2.20 U ug/L 1 2.20 10.0 OA17038 EPA 6010D 01/22/20 10:46 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OA17038 EPA 6010D 01/22/20 10:46 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 OA17038 EPA 6010D 01/22/20 10:46 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 OA22017 EPA 6020B 01/23/20 15:06 RLF Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 OA17038 EPA 6010D 01/22/20 10:46 JDH Zinc[7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 OA17038 EPA 6010D 01/22/20 10:46 JDH FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 36 of 82 00� www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW24R Lab Sample ID:CD01083-02 Received: 01/17/20 13:45 Matrix: Ground Water Sampled:01/16/20 10:32 Work Order: CD01083 Project: Rowan County Active Landfills Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 OA21038 EPA 8260D O1/22/20 01:20 REF 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 OA21038 EPA 8260D O1/22/20 01:20 REF 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 OA21038 EPA 8260D O1/22/20 01:20 REF 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 OA21038 EPA 8260D O1/22/20 01:20 REF 1,1-Dichloroethane [75-34-3]^ 0.13 u ug/L 1 0.13 1.0 OA21038 EPA 8260D O1/22/20 01:20 REF 1,1-Dichloroethene [75-35-4]^ 0.21 u ug/L 1 0.21 1.0 OA21038 EPA 8260D O1/22/20 01:20 REF 1,2,3-Trichloropropane [96-18-4]^ 0.23 u ug/L 1 0.23 1.0 OA21038 EPA 8260D O1/22/20 01:20 REF 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 u ug/L 1 0.48 1.0 OA21038 EPA 8260D O1/22/20 01:20 REF 1,2-Dibromoethane [106-93-4]^ 0.66 u ug/L 1 0.66 1.0 OA21038 EPA 8260D O1/22/20 01:20 REF 1,2-Dichlorobenzene [95-50-1]^ 0.19 u ug/L 1 0.19 1.0 OA21038 EPA 8260D O1/22/20 01:20 REF 1,2-Dichloroethane [107-06-2]^ 0.21 u ug/L 1 0.21 1.0 OA21038 EPA 8260D O1/22/20 01:20 REF 1,2-Dichloropropane [78-87-5]^ 0.10 u ug/L 1 0.10 1.0 OA21038 EPA 8260D O1/22/20 01:20 REF 1,4-Dichlorobenzene [106-46-7]^ 0.19 u ug/L 1 0.19 1.0 OA21038 EPA 8260D O1/22/20 01:20 REF 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 OA21038 EPA 8260D O1/22/20 01:20 REF 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 OA21038 EPA 8260D O1/22/20 01:20 REF 4-Methyl-2-pentanone [108-10-1]^ 1.1 u ug/L 1 1.1 5.0 OA21038 EPA 8260D O1/22/20 01:20 REF Acetone [67-64-1]A 10 u ug/L 1 10 20 OA21038 EPA 8260D O1/22/20 01:20 REF Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 OA21038 EPA 8260D O1/22/20 01:20 REF Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 OA21038 EPA 8260D O1/22/20 01:20 REF Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 OA21038 EPA 8260D O1/22/20 01:20 REF Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 OA21038 EPA 8260D O1/22/20 01:20 REF Bromoform [75-25-2]^ 0.22 u ug/L 1 0.22 1.0 OA21038 EPA 8260D O1/22/20 01:20 REF Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 OA21038 EPA 8260D O1/22/20 01:20 REF Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 OA21038 EPA 8260D O1/22/20 01:20 REF Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 OA21038 EPA 8260D O1/22/20 01:20 REF Chlorobenzene[108-90-7]A 0.17 u ug/L 1 0.17 1.0 OA21038 EPA 8260D O1/22/20 01:20 REF Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 OA21038 EPA 8260D O1/22/20 01:20 REF QV-01 Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 OA21038 EPA 8260D O1/22/20 01:20 REF Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 OA21038 EPA 8260D O1/22/20 01:20 REF cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 OA21038 EPA 8260D O1/22/20 01:20 REF cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 OA21038 EPA 8260D O1/22/20 01:20 REF Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 OA21038 EPA 8260D O1/22/20 01:20 REF Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 OA21038 EPA 8260D O1/22/20 01:20 REF Ethylbenzene[100-41-4]A 0.13 u ug/L 1 0.13 1.0 OA21038 EPA 8260D O1/22/20 01:20 REF Iodomethane [74-88-4]^ 1.7 u ug/L 1 1.7 5.0 OA21038 EPA 8260D O1/22/20 01:20 REF Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 OA21038 EPA 8260D O1/22/20 01:20 REF Styrene [100-42-5]A 0.11 u ug/L 1 0.11 1.0 OA21038 EPA 8260D O1/22/20 01:20 REF Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 OA21038 EPA 8260D O1/22/20 01:20 REF Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 OA21038 EPA 8260D O1/22/20 01:20 REF trans-1,2-Dichloroethene [156-60-5]^ 0.21 u ug/L 1 0.21 1.0 OA21038 EPA 8260D O1/22/20 01:20 REF trans-1,3-Dichloropropene [10061-02-6]^ 0.15 u ug/L 1 0.15 1.0 OA21038 EPA 8260D O1/22/20 01:20 REF trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 OA21038 EPA 8260D O1/22/20 01:20 REF Trichloroethene [79-01-6]^ 0.15 u ug/L 1 0.15 1.0 OA21038 EPA 8260D O1/22/20 01:20 REF Trichlorofluoromethane [75-69-4]^ 0.24 u ug/L 1 0.24 1.0 OA21038 EPA 8260D O1/22/20 01:20 REF Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 OA21038 EPA 8260D O1/22/20 01:20 REF Vinyl chloride [75-01-4]^ 0.32 u ug/L 1 0.32 1.0 OA21038 EPA 8260D O1/22/20 01:20 REF Xylenes (Total) [1330-20-7]A 0.45 u ug/L 1 0.45 3.0 OA21038 EPA 8260D O1/22/20 01:20 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 37 Of 82 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW24R Lab Sample ID:CDO1083-02 Received: 01/17/20 13:45 Matrix: Ground Water Sampled:01/16/20 10:32 Work Order: CDO1083 Project: Rowan County Active Landfills Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 52 1 50.0 104 % 53-136 OA21038 EPA 6260D 01122120 01:20 REF Dibromofluoromethane 55 1 50.0 111 % 67-129 OA21038 EPA 6260D 01122120 01:20 REF Toluene-& 48 1 50.0 96 % 59-134 OA21038 EPA 6260D 01122120 01:20 REF Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-O]^ 0.740 U ug/L 2 0.740 2.00 OA22017 EPA 6020B 01/23/20 15:10 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OA17038 EPA 6010D 01/22/20 10:48 JDH Barium [7440-39-3]^ 51.4 ug/L 1 1.10 10.0 OA17038 EPA 6010D 01/22/20 10:48 JDH Beryllium [7440-41-7]^ 0.198 J ug/L 1 0.160 1.00 OA17038 EPA 6010D 01/22/20 10:48 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OA17038 EPA 6010D 01/22/20 10:48 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 OA17038 EPA 6010D 01/22/20 10:48 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 OA17038 EPA 6010D 01/22/20 10:48 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 OA17038 EPA 6010D 01/22/20 10:48 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 OA17038 EPA 6010D 01/22/20 10:48 JDH Nickel[7440-02-O]^ 2.20 U ug/L 1 2.20 10.0 OA17038 EPA 6010D 01/22/20 10:48 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OA17038 EPA 6010D 01/22/20 10:48 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 OA17038 EPA 6010D 01/22/20 10:48 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 OA22017 EPA 6020B 01/23/20 15:10 RLF Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 OA17038 EPA 6010D 01/22/20 10:48 JDH Zinc[7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 OA17038 EPA 6010D 01/22/20 10:48 JDH FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 38 of 82 00� www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW27 Lab Sample ID:CD01083-03 Received: 01/17/20 13:45 Matrix: Ground Water Sampled:01/16/20 13:09 Work Order: CD01083 Project: Rowan County Active Landfills Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 OA21038 EPA 8260D O1/22/20 01:52 REF 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 OA21038 EPA 8260D O1/22/20 01:52 REF 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 OA21038 EPA 8260D O1/22/20 01:52 REF 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 OA21038 EPA 8260D O1/22/20 01:52 REF 1,1-Dichloroethane [75-34-3]^ 0.13 u ug/L 1 0.13 1.0 OA21038 EPA 8260D O1/22/20 01:52 REF 1,1-Dichloroethene [75-35-4]^ 0.21 u ug/L 1 0.21 1.0 OA21038 EPA 8260D O1/22/20 01:52 REF 1,2,3-Trichloropropane [96-18-4]^ 0.23 u ug/L 1 0.23 1.0 OA21038 EPA 8260D O1/22/20 01:52 REF 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 u ug/L 1 0.48 1.0 OA21038 EPA 8260D O1/22/20 01:52 REF 1,2-Dibromoethane [106-93-4]^ 0.66 u ug/L 1 0.66 1.0 OA21038 EPA 8260D O1/22/20 01:52 REF 1,2-Dichlorobenzene [95-50-1]^ 0.19 u ug/L 1 0.19 1.0 OA21038 EPA 8260D O1/22/20 01:52 REF 1,2-Dichloroethane [107-06-2]^ 0.21 u ug/L 1 0.21 1.0 OA21038 EPA 8260D O1/22/20 01:52 REF 1,2-Dichloropropane [78-87-5]^ 0.10 u ug/L 1 0.10 1.0 OA21038 EPA 8260D O1/22/20 01:52 REF 1,4-Dichlorobenzene [106-46-7]^ 0.19 u ug/L 1 0.19 1.0 OA21038 EPA 8260D O1/22/20 01:52 REF 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 OA21038 EPA 8260D O1/22/20 01:52 REF 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 OA21038 EPA 8260D O1/22/20 01:52 REF 4-Methyl-2-pentanone [108-10-1]^ 1.1 u ug/L 1 1.1 5.0 OA21038 EPA 8260D O1/22/20 01:52 REF Acetone [67-64-1]A 10 u ug/L 1 10 20 OA21038 EPA 8260D O1/22/20 01:52 REF Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 OA21038 EPA 8260D O1/22/20 01:52 REF Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 OA21038 EPA 8260D O1/22/20 01:52 REF Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 OA21038 EPA 8260D O1/22/20 01:52 REF Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 OA21038 EPA 8260D O1/22/20 01:52 REF Bromoform [75-25-2]^ 0.22 u ug/L 1 0.22 1.0 OA21038 EPA 8260D O1/22/20 01:52 REF Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 OA21038 EPA 8260D O1/22/20 01:52 REF Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 OA21038 EPA 8260D O1/22/20 01:52 REF Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 OA21038 EPA 8260D O1/22/20 01:52 REF Chlorobenzene[108-90-7]A 0.17 u ug/L 1 0.17 1.0 OA21038 EPA 8260D O1/22/20 01:52 REF Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 OA21038 EPA 8260D O1/22/20 01:52 REF QV-01 Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 OA21038 EPA 8260D O1/22/20 01:52 REF Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 OA21038 EPA 8260D O1/22/20 01:52 REF cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 OA21038 EPA 8260D O1/22/20 01:52 REF cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 OA21038 EPA 8260D O1/22/20 01:52 REF Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 OA21038 EPA 8260D O1/22/20 01:52 REF Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 OA21038 EPA 8260D O1/22/20 01:52 REF Ethylbenzene[100-41-4]A 0.13 u ug/L 1 0.13 1.0 OA21038 EPA 8260D O1/22/20 01:52 REF Iodomethane [74-88-4]^ 1.7 u ug/L 1 1.7 5.0 OA21038 EPA 8260D O1/22/20 01:52 REF Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 OA21038 EPA 8260D O1/22/20 01:52 REF Styrene [100-42-5]A 0.11 u ug/L 1 0.11 1.0 OA21038 EPA 8260D O1/22/20 01:52 REF Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 OA21038 EPA 8260D O1/22/20 01:52 REF Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 OA21038 EPA 8260D O1/22/20 01:52 REF trans-1,2-Dichloroethene [156-60-5]^ 0.21 u ug/L 1 0.21 1.0 OA21038 EPA 8260D O1/22/20 01:52 REF trans-1,3-Dichloropropene [10061-02-6]^ 0.15 u ug/L 1 0.15 1.0 OA21038 EPA 8260D O1/22/20 01:52 REF trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 OA21038 EPA 8260D O1/22/20 01:52 REF Trichloroethene [79-01-6]^ 0.15 u ug/L 1 0.15 1.0 OA21038 EPA 8260D O1/22/20 01:52 REF Trichlorofluoromethane [75-69-4]^ 0.24 u ug/L 1 0.24 1.0 OA21038 EPA 8260D O1/22/20 01:52 REF Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 OA21038 EPA 8260D O1/22/20 01:52 REF Vinyl chloride [75-01-4]^ 0.32 u ug/L 1 0.32 1.0 OA21038 EPA 8260D O1/22/20 01:52 REF Xylenes (Total) [1330-20-7]A 0.45 u ug/L 1 0.45 3.0 OA21038 EPA 8260D O1/22/20 01:52 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 39 Of 82 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW27 Lab Sample ID:CDO1083-03 Received: 01/17/20 13:45 Matrix: Ground Water Sampled:01/16/20 13:09 Work Order: CDO1083 Project: Rowan County Active Landfills Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 53 1 50.0 105 % 53-136 OA21038 EPA 6260D 01122120 01:52 REF Dibromofluoromethane 55 1 50.0 110 % 67-129 OA21038 EPA 6260D 01122120 01:52 REF Toluene-& 48 1 50.0 96 % 59-134 OA21038 EPA 6260D 01122120 01:52 REF Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-O]^ 0.740 U ug/L 2 0.740 2.00 OA22017 EPA 6020B 01/23/20 15:14 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OA17038 EPA 6010D 01/22/20 10:51 JDH Barium [7440-39-3]^ 70.3 ug/L 1 1.10 10.0 OA17038 EPA 6010D 01/22/20 10:51 JDH Beryllium [7440-41-7]^ 0.482 J ug/L 1 0.160 1.00 OA17038 EPA 6010D 01/22/20 10:51 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OA17038 EPA 6010D 01/22/20 10:51 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 OA17038 EPA 6010D 01/22/20 10:51 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 OA17038 EPA 6010D 01/22/20 10:51 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 OA17038 EPA 6010D 01/22/20 10:51 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 OA17038 EPA 6010D 01/22/20 10:51 JDH Nickel[7440-02-O]^ 2.20 U ug/L 1 2.20 10.0 OA17038 EPA 6010D 01/22/20 10:51 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OA17038 EPA 6010D 01/22/20 10:51 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 OA17038 EPA 6010D 01/22/20 10:51 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 OA22017 EPA 6020B 01/23/20 15:14 RLF Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 OA17038 EPA 6010D 01/22/20 10:51 JDH Zinc[7440-66-6]^ 6.95 J ug/L 1 4.40 10.0 OA17038 EPA 6010D 01/22/20 10:51 JDH FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 40 of $2 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 8003-Field Blank Lab Sample ID:CD01083-05 Received: 01/17/20 13:45 Matrix: Water Sampled:01/16/20 14:35 Work Order: CD01083 Project: Rowan County Active Landfills Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Ay Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 OA21038 EPA 8260D O1/21/20 19:04 REF 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 OA21038 EPA 8260D O1/21/20 19:04 REF 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 OA21038 EPA 8260D O1/21/20 19:04 REF 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 OA21038 EPA 8260D O1/21/20 19:04 REF 1,1-Dichloroethane [75-34-3]A 0.13 u ug/L 1 0.13 1.0 OA21038 EPA 8260D O1/21/20 19:04 REF 1,1-Dichloroethene [75-35-4]A 0.21 u ug/L 1 0.21 1.0 OA21038 EPA 8260D O1/21/20 19:04 REF 1,2,3-Trichloropropane [96-18-4]A 0.23 u ug/L 1 0.23 1.0 OA21038 EPA 8260D O1/21/20 19:04 REF 1,2-Dibromo-3-chloropropane [96-12-8]A 0.48 u ug/L 1 0.48 1.0 OA21038 EPA 8260D O1/21/20 19:04 REF 1,2-Dibromoethane [106-93-4]A 0.66 u ug/L 1 0.66 1.0 OA21038 EPA 8260D O1/21/20 19:04 REF 1,2-Dichlorobenzene [95-50-1]A 0.19 u ug/L 1 0.19 1.0 OA21038 EPA 8260D O1/21/20 19:04 REF 1,2-Dichloroethane [107-06-2]A 0.21 u ug/L 1 0.21 1.0 OA21038 EPA 8260D O1/21/20 19:04 REF 1,2-Dichloropropane [78-87-5]A 0.10 u ug/L 1 0.10 1.0 OA21038 EPA 8260D O1/21/20 19:04 REF 1,4-Dichlorobenzene [106-46-7]A 0.19 u ug/L 1 0.19 1.0 OA21038 EPA 8260D O1/21/20 19:04 REF 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 OA21038 EPA 8260D O1/21/20 19:04 REF 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 OA21038 EPA 8260D O1/21/20 19:04 REF 4-Methyl-2-pentanone [108-10-1]A 1.1 u ug/L 1 1.1 5.0 OA21038 EPA 8260D O1/21/20 19:04 REF Acetone [67-64-1]A 10 u ug/L 1 10 20 OA21038 EPA 8260D O1/21/20 19:04 REF Acrylonitrile [107-13-1]A 3.5 u ug/L 1 3.5 10 OA21038 EPA 8260D O1/21/20 19:04 REF Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 OA21038 EPA 8260D O1/21/20 19:04 REF Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 OA21038 EPA 8260D O1/21/20 19:04 REF Bromodichloromethane [75-27-4]A 0.17 u ug/L 1 0.17 1.0 OA21038 EPA 8260D O1/21/20 19:04 REF Bromoform [75-25-2]A 0.22 u ug/L 1 0.22 1.0 OA21038 EPA 8260D O1/21/20 19:04 REF Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 OA21038 EPA 8260D O1/21/20 19:04 REF Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 OA21038 EPA 8260D O1/21/20 19:04 REF Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 OA21038 EPA 8260D O1/21/20 19:04 REF Chlorobenzene [108-90-7]A 0.17 u ug/L 1 0.17 1.0 OA21038 EPA 8260D O1/21/20 19:04 REF Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 OA21038 EPA 8260D O1/21/20 19:04 REF QV-01 Chloroform [67-66-3]A 0.18 u ug/L 1 0.18 1.0 OA21038 EPA 8260D O1/21/20 19:04 REF Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 OA21038 EPA 8260D O1/21/20 19:04 REF cis-1,2-Dichloroethene [156-59-2]A 0.15 u ug/L 1 0.15 1.0 OA21038 EPA 8260D O1/21/20 19:04 REF cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 OA21038 EPA 8260D O1/21/20 19:04 REF Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 OA21038 EPA 8260D O1/21/20 19:04 REF Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 OA21038 EPA 8260D O1/21/20 19:04 REF Ethylbenzene [100-41-4]A 0.13 u ug/L 1 0.13 1.0 OA21038 EPA 8260D O1/21/20 19:04 REF Iodomethane [74-88-4]A 1.7 u ug/L 1 1.7 5.0 OA21038 EPA 8260D O1/21/20 19:04 REF Methylene chloride [75-09-2]A 0.68 J ug/L 1 0.23 1.0 OA21038 EPA 8260D O1/21/20 19:04 REF 0-01 Styrene [100-42-5]A 0.11 u ug/L 1 0.11 1.0 OA21038 EPA 8260D O1/21/20 19:04 REF Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 OA21038 EPA 8260D O1/21/20 19:04 REF Tetrahydrofuran [109-99-9]A 0.53 u ug/L 1 0.53 1.0 OA21038 EPA 8260D O1/21/20 19:04 REF Toluene [108-88-3]A 0.14 u ug/L 1 0.14 1.0 OA21038 EPA 8260D O1/21/20 19:04 REF trans-1,2-Dichloroethene [156-60-5]A 0.21 u ug/L 1 0.21 1.0 OA21038 EPA 8260D O1/21/20 19:04 REF trans-1,3-Dichloropropene [10061-02-6]A 0.15 u ug/L 1 0.15 1.0 OA21038 EPA 8260D O1/21/20 19:04 REF trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 OA21038 EPA 8260D O1/21/20 19:04 REF Trichloroethene [79-01-6]A 0.15 u ug/L 1 0.15 1.0 OA21038 EPA 8260D O1/21/20 19:04 REF Trichlorofluoromethane [75-69-4]A 0.24 u ug/L 1 0.24 1.0 OA21038 EPA 8260D O1/21/20 19:04 REF Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 OA21038 EPA 8260D O1/21/20 19:04 REF Vinyl chloride [75-01-4]A 0.32 Ll ug/L 1 0.32 1.0 OA21038 EPA 8260D O1/21/20 19:04 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 41 Of 82 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-Field Blank Lab Sample ID:CDO1083-05 Received: 01/17/20 13:45 Matrix: Water Sampled:01/16/20 14:35 Work Order: CDO1083 Project: Rowan County Active Landfills Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed AX Notes Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 OA21038 EPA 8260D 01/21/20 19:04 REF Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 53 1 50.0 105 % 53-136 OA21038 EPA 6260D 01/21/20 19:04 REF Dibromofluoromethane 52 1 50.0 104 % 67-129 OA21038 EPA 6260D 0112112019:04 REF Toluene-& 49 1 50.0 97 % 59-134 OA21038 EPA 6260D 0112112019:04 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 Ay Notes Antimony[7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 OA22017 EPA 6020B 01/23/20 15:27 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OA17038 EPA 6010D 01/22/20 10:53 JDH Barium [7440-39-3]^ 1.11 J ug/L 1 1.10 10.0 OA17038 EPA 6010D 01/22/20 10:53 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 OA17038 EPA 6010D 01/22/20 10:53 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OA17038 EPA 6010D 01/22/20 10:53 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 OA17038 EPA 6010D 01/22/20 10:53 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 OA17038 EPA 6010D 01/22/20 10:53 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 OA17038 EPA 6010D 01/22/20 10:53 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 OA17038 EPA 6010D 01/22/20 10:53 JDH Nickel[7440-02-O]^ 2.20 U ug/L 1 2.20 10.0 OA17038 EPA 6010D 01/22/20 10:53 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OA17038 EPA 6010D 01/22/20 10:53 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 OA17038 EPA 6010D 01/22/20 10:53 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 OA22017 EPA 6020B 01/23/20 15:27 RLF Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 OA17038 EPA 6010D 01/22/20 10:53 JDH Zinc[7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 OA17038 EPA 6010D 01/22/20 10:53 JDH FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 42 of 82 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW1 Lab Sample ID:CD01083-06 Received: 01/17/20 13:45 Matrix: Ground Water Sampled:01/16/20 13:12 Work Order: CD01083 Project: Rowan County Active Landfills Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 OA17033 EPA 8260D O1/18/20 11:31 REF 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 OA17033 EPA 8260D O1/18/20 11:31 REF 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 OA17033 EPA 8260D O1/18/20 11:31 REF 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 OA17033 EPA 8260D O1/18/20 11:31 REF 1,1-Dichloroethane [75-34-3]^ 0.13 u ug/L 1 0.13 1.0 OA17033 EPA 8260D O1/18/20 11:31 REF 1,1-Dichloroethene [75-35-4]^ 0.21 u ug/L 1 0.21 1.0 OA17033 EPA 8260D O1/18/20 11:31 REF 1,2,3-Trichloropropane [96-18-4]^ 0.23 u ug/L 1 0.23 1.0 OA17033 EPA 8260D O1/18/20 11:31 REF 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 u ug/L 1 0.48 1.0 OA17033 EPA 8260D O1/18/20 11:31 REF 1,2-Dibromoethane [106-93-4]^ 0.66 u ug/L 1 0.66 1.0 OA17033 EPA 8260D O1/18/20 11:31 REF 1,2-Dichlorobenzene [95-50-1]^ 0.19 u ug/L 1 0.19 1.0 OA17033 EPA 8260D O1/18/20 11:31 REF 1,2-Dichloroethane [107-06-2]^ 0.21 u ug/L 1 0.21 1.0 OA17033 EPA 8260D O1/18/20 11:31 REF 1,2-Dichloropropane [78-87-5]^ 0.10 u ug/L 1 0.10 1.0 OA17033 EPA 8260D O1/18/20 11:31 REF 1,4-Dichlorobenzene [106-46-7]^ 0.19 u ug/L 1 0.19 1.0 OA17033 EPA 8260D O1/18/20 11:31 REF 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 OA17033 EPA 8260D O1/18/20 11:31 REF 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 OA17033 EPA 8260D O1/18/20 11:31 REF 4-Methyl-2-pentanone [108-10-1]^ 1.1 u ug/L 1 1.1 5.0 OA17033 EPA 8260D O1/18/20 11:31 REF Acetone [67-64-1]A 10 u ug/L 1 10 20 OA17033 EPA 8260D O1/18/20 11:31 REF Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 OA17033 EPA 8260D O1/18/20 11:31 REF Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 OA17033 EPA 8260D O1/18/20 11:31 REF Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 OA17033 EPA 8260D O1/18/20 11:31 REF Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 OA17033 EPA 8260D O1/18/20 11:31 REF Bromoform [75-25-2]^ 0.22 u ug/L 1 0.22 1.0 OA17033 EPA 8260D O1/18/20 11:31 REF QV-01 Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 OA17033 EPA 8260D O1/18/20 11:31 REF Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 OA17033 EPA 8260D O1/18/20 11:31 REF Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 OA17033 EPA 8260D O1/18/20 11:31 REF Chlorobenzene [108-90-7]A 0.17 u ug/L 1 0.17 1.0 OA17033 EPA 8260D O1/18/20 11:31 REF Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 OA17033 EPA 8260D O1/18/20 11:31 REF QV-01 Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 OA17033 EPA 8260D O1/18/20 11:31 REF Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 OA17033 EPA 8260D O1/18/20 11:31 REF cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 OA17033 EPA 8260D O1/18/20 11:31 REF cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 OA17033 EPA 8260D O1/18/20 11:31 REF Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 OA17033 EPA 8260D O1/18/20 11:31 REF Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 OA17033 EPA 8260D O1/18/20 11:31 REF Ethylbenzene [100-41-4]A 0.13 u ug/L 1 0.13 1.0 OA17033 EPA 8260D O1/18/20 11:31 REF Iodomethane [74-88-4]^ 1.7 u ug/L 1 1.7 5.0 OA17033 EPA 8260D O1/18/20 11:31 REF Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 OA17033 EPA 8260D O1/18/20 11:31 REF Styrene [100-42-5]A 0.11 u ug/L 1 0.11 1.0 OA17033 EPA 8260D O1/18/20 11:31 REF Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 OA17033 EPA 8260D O1/18/20 11:31 REF Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 OA17033 EPA 8260D O1/18/20 11:31 REF trans-1,2-Dichloroethene [156-60-5]^ 0.21 u ug/L 1 0.21 1.0 OA17033 EPA 8260D O1/18/20 11:31 REF trans-1,3-Dichloropropene [10061-02-6]^ 0.15 u ug/L 1 0.15 1.0 OA17033 EPA 8260D O1/18/20 11:31 REF trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 OA17033 EPA 8260D O1/18/20 11:31 REF Trichloroethene [79-01-6]^ 0.15 u ug/L 1 0.15 1.0 OA17033 EPA 8260D O1/18/20 11:31 REF Trichlorofluoromethane [75-69-4]^ 0.24 u ug/L 1 0.24 1.0 OA17033 EPA 8260D O1/18/20 11:31 REF Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 OA17033 EPA 8260D O1/18/20 11:31 REF Vinyl chloride [75-01-4]^ 0.32 u ug/L 1 0.32 1.0 OA17033 EPA 8260D O1/18/20 11:31 REF Xylenes (Total) [1330-20-7]A 0.45 u ug/L 1 0.45 3.0 OA17033 EPA 8260D O1/18/20 11:31 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 43 Of 82 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW1 Lab Sample ID:CDO1083-06 Received: 01/17/20 13:45 Matrix: Ground Water Sampled:01/16/20 13:12 Work Order: CDO1083 Project: Rowan County Active Landfills Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 54 1 50.0 109 % 53-136 OA17033 EPA 6260D 01118120 11:31 REF Dibromofluoromethane 53 1 50.0 107 % 67-129 OA17033 EPA 6260D 01118120 11:31 REF Toluene-& 48 1 50.0 96 % 59-134 OA17033 EPA 6260D 01118120 11:31 REF Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-O]^ 0.740 U ug/L 2 0.740 2.00 OA22017 EPA 6020B 01/23/20 15:31 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OA17038 EPA 6010D 01/22/20 10:56 JDH Barium [7440-39-3]^ 90.6 ug/L 1 1.10 10.0 OA17038 EPA 6010D 01/22/20 10:56 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 OA17038 EPA 6010D 01/22/20 10:56 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OA17038 EPA 6010D 01/22/20 10:56 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 OA17038 EPA 6010D 01/22/20 10:56 JDH Cobalt[7440-48-4]^ 1.43 J ug/L 1 1.40 10.0 OA17038 EPA 6010D 01/22/20 10:56 JDH Copper[7440-50-8]^ 2.39 J ug/L 1 1.60 10.0 OA17038 EPA 6010D 01/22/20 10:56 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 OA17038 EPA 6010D 01/22/20 10:56 JDH Nickel[7440-02-O]^ 3.11 J ug/L 1 2.20 10.0 OA17038 EPA 6010D 01/22/20 10:56 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OA17038 EPA 6010D 01/22/20 10:56 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 OA17038 EPA 6010D 01/22/20 10:56 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 OA22017 EPA 6020B 01/23/20 15:31 RLF Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 OA17038 EPA 6010D 01/22/20 10:56 JDH Zinc[7440-66-6]^ 7.66 J ug/L 1 4.40 10.0 OA17038 EPA 6010D 01/22/20 10:56 JDH FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 44 of $2 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW7 Lab Sample ID:CD01083-07 Received: 01/17/20 13:45 Matrix: Ground Water Sampled:01/16/20 09:39 Work Order: CD01083 Project: Rowan County Active Landfills Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 OA17033 EPA 8260D O1/18/20 12:02 REF 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 OA17033 EPA 8260D O1/18/20 12:02 REF 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 OA17033 EPA 8260D O1/18/20 12:02 REF 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 OA17033 EPA 8260D O1/18/20 12:02 REF 1,1-Dichloroethane [75-34-3]^ 0.13 u ug/L 1 0.13 1.0 OA17033 EPA 8260D O1/18/20 12:02 REF 1,1-Dichloroethene [75-35-4]^ 0.21 u ug/L 1 0.21 1.0 OA17033 EPA 8260D O1/18/20 12:02 REF 1,2,3-Trichloropropane [96-18-4]^ 0.23 u ug/L 1 0.23 1.0 OA17033 EPA 8260D O1/18/20 12:02 REF 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 u ug/L 1 0.48 1.0 OA17033 EPA 8260D O1/18/20 12:02 REF 1,2-Dibromoethane [106-93-4]^ 0.66 u ug/L 1 0.66 1.0 OA17033 EPA 8260D O1/18/20 12:02 REF 1,2-Dichlorobenzene [95-50-1]^ 0.19 u ug/L 1 0.19 1.0 OA17033 EPA 8260D O1/18/20 12:02 REF 1,2-Dichloroethane [107-06-2]^ 0.21 u ug/L 1 0.21 1.0 OA17033 EPA 8260D O1/18/20 12:02 REF 1,2-Dichloropropane [78-87-5]^ 0.10 u ug/L 1 0.10 1.0 OA17033 EPA 8260D O1/18/20 12:02 REF 1,4-Dichlorobenzene [106-46-7]^ 0.19 u ug/L 1 0.19 1.0 OA17033 EPA 8260D O1/18/20 12:02 REF 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 OA17033 EPA 8260D O1/18/20 12:02 REF 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 OA17033 EPA 8260D O1/18/20 12:02 REF 4-Methyl-2-pentanone [108-10-1]^ 1.1 u ug/L 1 1.1 5.0 OA17033 EPA 8260D O1/18/20 12:02 REF Acetone [67-64-1]A 10 u ug/L 1 10 20 OA17033 EPA 8260D O1/18/20 12:02 REF Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 OA17033 EPA 8260D O1/18/20 12:02 REF Benzene [71-43-2]A 0.15 u ug/L 1 0.15 1.0 OA17033 EPA 8260D O1/18/20 12:02 REF Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 OA17033 EPA 8260D O1/18/20 12:02 REF Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 OA17033 EPA 8260D O1/18/20 12:02 REF Bromoform [75-25-2]^ 0.22 u ug/L 1 0.22 1.0 OA17033 EPA 8260D O1/18/20 12:02 REF QV-01 Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 OA17033 EPA 8260D O1/18/20 12:02 REF Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 OA17033 EPA 8260D O1/18/20 12:02 REF Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 OA17033 EPA 8260D O1/18/20 12:02 REF Chlorobenzene [108-90-7]A 0.17 u ug/L 1 0.17 1.0 OA17033 EPA 8260D O1/18/20 12:02 REF Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 OA17033 EPA 8260D O1/18/20 12:02 REF QV-01 Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 OA17033 EPA 8260D O1/18/20 12:02 REF Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 OA17033 EPA 8260D O1/18/20 12:02 REF cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 OA17033 EPA 8260D O1/18/20 12:02 REF cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 OA17033 EPA 8260D O1/18/20 12:02 REF Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 OA17033 EPA 8260D O1/18/20 12:02 REF Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 OA17033 EPA 8260D O1/18/20 12:02 REF Ethylbenzene [100-41-4]A 0.13 u ug/L 1 0.13 1.0 OA17033 EPA 8260D O1/18/20 12:02 REF Iodomethane [74-88-4]^ 1.7 u ug/L 1 1.7 5.0 OA17033 EPA 8260D O1/18/20 12:02 REF Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 OA17033 EPA 8260D O1/18/20 12:02 REF Styrene [100-42-5]A 0.11 u ug/L 1 0.11 1.0 OA17033 EPA 8260D O1/18/20 12:02 REF Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 OA17033 EPA 8260D O1/18/20 12:02 REF Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 OA17033 EPA 8260D O1/18/20 12:02 REF trans-1,2-Dichloroethene [156-60-5]^ 0.21 u ug/L 1 0.21 1.0 OA17033 EPA 8260D O1/18/20 12:02 REF trans-1,3-Dichloropropene [10061-02-6]^ 0.15 u ug/L 1 0.15 1.0 OA17033 EPA 8260D O1/18/20 12:02 REF trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 OA17033 EPA 8260D O1/18/20 12:02 REF Trichloroethene [79-01-6]^ 0.15 u ug/L 1 0.15 1.0 OA17033 EPA 8260D O1/18/20 12:02 REF Trichlorofluoromethane [75-69-4]^ 0.24 u ug/L 1 0.24 1.0 OA17033 EPA 8260D O1/18/20 12:02 REF Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 OA17033 EPA 8260D O1/18/20 12:02 REF Vinyl chloride [75-01-4]^ 0.32 u ug/L 1 0.32 1.0 OA17033 EPA 8260D O1/18/20 12:02 REF Xylenes (Total) [1330-20-7]A 0.45 u ug/L 1 0.45 3.0 OA17033 EPA 8260D O1/18/20 12:02 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 45 Of 82 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW7 Lab Sample ID:CDO1083-07 Received: 01/17/20 13:45 Matrix: Ground Water Sampled:01/16/20 09:39 Work Order: CDO1083 Project: Rowan County Active Landfills Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 53 1 50.0 106 % 53-136 OA17033 EPA 6260D 01118120 12:02 REF Dibromofluoromethane 53 1 50.0 105 % 67-129 OA17033 EPA 6260D 0111812012:02 REF Toluene-& 48 1 50.0 96 % 59-134 OA17033 EPA 6260D 0111812012:02 REF Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-O]^ 0.740 U ug/L 2 0.740 2.00 OA22017 EPA 6020B 01/23/20 15:36 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OA17038 EPA 6010D 01/22/20 10:59 JDH Barium [7440-39-3]^ 61.2 ug/L 1 1.10 10.0 OA17038 EPA 6010D 01/22/20 10:59 JDH Beryllium [7440-41-7]^ 0.189 J ug/L 1 0.160 1.00 OA17038 EPA 6010D 01/22/20 10:59 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OA17038 EPA 6010D 01/22/20 10:59 JDH Chromium [7440-47-3]^ 3.67 J ug/L 1 1.40 10.0 OA17038 EPA 6010D 01/22/20 10:59 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 OA17038 EPA 6010D 01/22/20 10:59 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 OA17038 EPA 6010D 01/22/20 10:59 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 OA17038 EPA 6010D 01/22/20 10:59 JDH Nickel[7440-02-O]^ 2.20 U ug/L 1 2.20 10.0 OA17038 EPA 6010D 01/22/20 10:59 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OA17038 EPA 6010D 01/22/20 10:59 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 OA17038 EPA 6010D 01/22/20 10:59 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 OA22017 EPA 6020B 01/23/20 15:36 RLF Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 OA17038 EPA 6010D 01/22/20 10:59 JDH Zinc[7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 OA17038 EPA 6010D 01/22/20 10:59 JDH FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 46 of 82 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW20 Lab Sample ID:CD01083-08 Received: 01/17/20 13:45 Matrix: Ground Water Sampled:01/16/20 14:45 Work Order: CD01083 Project: Rowan County Active Landfills Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 OA17033 EPA 8260D O1/18/20 12:33 REF 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 OA17033 EPA 8260D O1/18/20 12:33 REF 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 OA17033 EPA 8260D O1/18/20 12:33 REF 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 OA17033 EPA 8260D O1/18/20 12:33 REF 1,1-Dichloroethane [75-34-3]^ 0.13 u ug/L 1 0.13 1.0 OA17033 EPA 8260D O1/18/20 12:33 REF 1,1-Dichloroethene [75-35-4]^ 0.21 u ug/L 1 0.21 1.0 OA17033 EPA 8260D O1/18/20 12:33 REF 1,2,3-Trichloropropane [96-18-4]^ 0.23 u ug/L 1 0.23 1.0 OA17033 EPA 8260D O1/18/20 12:33 REF 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 u ug/L 1 0.48 1.0 OA17033 EPA 8260D O1/18/20 12:33 REF 1,2-Dibromoethane [106-93-4]^ 0.66 u ug/L 1 0.66 1.0 OA17033 EPA 8260D O1/18/20 12:33 REF 1,2-Dichlorobenzene [95-50-1]^ 0.19 u ug/L 1 0.19 1.0 OA17033 EPA 8260D O1/18/20 12:33 REF 1,2-Dichloroethane [107-06-2]^ 0.21 u ug/L 1 0.21 1.0 OA17033 EPA 8260D O1/18/20 12:33 REF 1,2-Dichloropropane [78-87-5]^ 0.10 u ug/L 1 0.10 1.0 OA17033 EPA 8260D O1/18/20 12:33 REF 1,4-Dichlorobenzene [106-46-7]^ 0.19 u ug/L 1 0.19 1.0 OA17033 EPA 8260D O1/18/20 12:33 REF 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 OA17033 EPA 8260D O1/18/20 12:33 REF 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 OA17033 EPA 8260D O1/18/20 12:33 REF 4-Methyl-2-pentanone [108-10-1]^ 1.1 u ug/L 1 1.1 5.0 OA17033 EPA 8260D O1/18/20 12:33 REF Acetone [67-64-1]A 10 u ug/L 1 10 20 OA17033 EPA 8260D O1/18/20 12:33 REF Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 OA17033 EPA 8260D O1/18/20 12:33 REF Benzene [71-43-2]A 0.15 u ug/L 1 0.15 1.0 OA17033 EPA 8260D O1/18/20 12:33 REF Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 OA17033 EPA 8260D O1/18/20 12:33 REF Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 OA17033 EPA 8260D O1/18/20 12:33 REF Bromoform [75-25-2]^ 0.22 u ug/L 1 0.22 1.0 OA17033 EPA 8260D O1/18/20 12:33 REF QV-01 Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 OA17033 EPA 8260D O1/18/20 12:33 REF Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 OA17033 EPA 8260D O1/18/20 12:33 REF Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 OA17033 EPA 8260D O1/18/20 12:33 REF Chlorobenzene [108-90-7]A 0.17 u ug/L 1 0.17 1.0 OA17033 EPA 8260D O1/18/20 12:33 REF Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 OA17033 EPA 8260D O1/18/20 12:33 REF QV-01 Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 OA17033 EPA 8260D O1/18/20 12:33 REF Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 OA17033 EPA 8260D O1/18/20 12:33 REF cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 OA17033 EPA 8260D O1/18/20 12:33 REF cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 OA17033 EPA 8260D O1/18/20 12:33 REF Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 OA17033 EPA 8260D O1/18/20 12:33 REF Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 OA17033 EPA 8260D O1/18/20 12:33 REF Ethylbenzene [100-41-4]A 0.13 u ug/L 1 0.13 1.0 OA17033 EPA 8260D O1/18/20 12:33 REF Iodomethane [74-88-4]^ 1.7 u ug/L 1 1.7 5.0 OA17033 EPA 8260D O1/18/20 12:33 REF Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 OA17033 EPA 8260D O1/18/20 12:33 REF Styrene [100-42-5]A 0.11 u ug/L 1 0.11 1.0 OA17033 EPA 8260D O1/18/20 12:33 REF Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 OA17033 EPA 8260D O1/18/20 12:33 REF Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 OA17033 EPA 8260D O1/18/20 12:33 REF trans-1,2-Dichloroethene [156-60-5]^ 0.21 u ug/L 1 0.21 1.0 OA17033 EPA 8260D O1/18/20 12:33 REF trans-1,3-Dichloropropene [10061-02-6]^ 0.15 u ug/L 1 0.15 1.0 OA17033 EPA 8260D O1/18/20 12:33 REF trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 OA17033 EPA 8260D O1/18/20 12:33 REF Trichloroethene [79-01-6]^ 0.15 u ug/L 1 0.15 1.0 OA17033 EPA 8260D O1/18/20 12:33 REF Trichlorofluoromethane [75-69-4]^ 0.24 u ug/L 1 0.24 1.0 OA17033 EPA 8260D O1/18/20 12:33 REF Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 OA17033 EPA 8260D O1/18/20 12:33 REF Vinyl chloride [75-01-4]^ 0.32 u ug/L 1 0.32 1.0 OA17033 EPA 8260D O1/18/20 12:33 REF Xylenes (Total) [1330-20-7]A 0.45 u ug/L 1 0.45 3.0 OA17033 EPA 8260D O1/18/20 12:33 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 47 Of 82 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW20 Lab Sample ID:CDO1083-08 Received: 01/17/20 13:45 Matrix: Ground Water Sampled:01/16/20 14:45 Work Order: CDO1083 Project: Rowan County Active Landfills Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 52 1 50.0 104 % 53-136 OA17033 EPA 6260D 01118120 12:33 REF Dibromofluoromethane 54 1 50.0 108 % 67-129 OA17033 EPA 6260D 0111812012:33 REF Toluene-& 50 1 50.0 100 % 59-134 OA17033 EPA 6260D 0111812012:33 REF Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-O]^ 0.740 U ug/L 2 0.740 2.00 OA22017 EPA 6020B 01/23/20 15:40 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OA17038 EPA 6010D 01/22/20 11:01 JDH Barium [7440-39-3]^ 89.6 ug/L 1 1.10 10.0 OA17038 EPA 6010D 01/22/20 11:01 JDH Beryllium [7440-41-7]^ 0.230 J ug/L 1 0.160 1.00 OA17038 EPA 6010D 01/22/20 11:01 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OA17038 EPA 6010D 01/22/20 11:01 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 OA17038 EPA 6010D 01/22/20 11:01 JDH Cobalt[7440-48-4]^ 5.71 J ug/L 1 1.40 10.0 OA17038 EPA 6010D 01/22/20 11:01 JDH Copper[7440-50-8]^ 2.68 J ug/L 1 1.60 10.0 OA17038 EPA 6010D 01/22/20 11:01 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 OA17038 EPA 6010D 01/22/20 11:01 JDH Nickel[7440-02-O]^ 2.86 J ug/L 1 2.20 10.0 OA17038 EPA 6010D 01/22/20 11:01 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OA17038 EPA 6010D 01/22/20 11:01 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 OA17038 EPA 6010D 01/22/20 11:01 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 OA22017 EPA 6020B 01/23/20 15:40 RLF Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 OA17038 EPA 6010D 01/22/20 11:01 JDH Zinc[7440-66-6]^ 16.3 ug/L 1 4.40 10.0 OA17038 EPA 6010D 01/22/20 11:01 JDH FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 48 of 82 00� www.encolabs.com ANALYTICAL RESULTS Description: 8003-SW1 Lab Sample ID:CD01083-09 Received: 01/17/20 13:45 Matrix: Surface Water Sampled:01/16/20 11:49 Work Order: CD01083 Project: Rowan County Active Landfills Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analyte FCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 OA17033 EPA 8260D O1/18/20 13:04 REF 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 OA17033 EPA 8260D O1/18/20 13:04 REF 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 OA17033 EPA 8260D O1/18/20 13:04 REF 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 OA17033 EPA 8260D O1/18/20 13:04 REF 1,1-Dichloroethane [75-34-3]^ 0.13 u ug/L 1 0.13 1.0 OA17033 EPA 8260D O1/18/20 13:04 REF 1,1-Dichloroethene [75-35-4]^ 0.21 u ug/L 1 0.21 1.0 OA17033 EPA 8260D O1/18/20 13:04 REF 1,2,3-Trichloropropane [96-18-4]^ 0.23 u ug/L 1 0.23 1.0 OA17033 EPA 8260D O1/18/20 13:04 REF 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 u ug/L 1 0.48 1.0 OA17033 EPA 8260D O1/18/20 13:04 REF 1,2-Dibromoethane [106-93-4]^ 0.66 u ug/L 1 0.66 1.0 OA17033 EPA 8260D O1/18/20 13:04 REF 1,2-Dichlorobenzene [95-50-1]^ 0.19 u ug/L 1 0.19 1.0 OA17033 EPA 8260D O1/18/20 13:04 REF 1,2-Dichloroethane [107-06-2]^ 0.21 u ug/L 1 0.21 1.0 OA17033 EPA 8260D O1/18/20 13:04 REF 1,2-Dichloropropane [78-87-5]^ 0.10 u ug/L 1 0.10 1.0 OA17033 EPA 8260D O1/18/20 13:04 REF 1,4-Dichlorobenzene [106-46-7]^ 0.19 u ug/L 1 0.19 1.0 OA17033 EPA 8260D O1/18/20 13:04 REF 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 OA17033 EPA 8260D O1/18/20 13:04 REF 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 OA17033 EPA 8260D O1/18/20 13:04 REF 4-Methyl-2-pentanone [108-10-1]^ 1.1 u ug/L 1 1.1 5.0 OA17033 EPA 8260D O1/18/20 13:04 REF Acetone [67-64-1]A 10 u ug/L 1 10 20 OA17033 EPA 8260D O1/18/20 13:04 REF Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 OA17033 EPA 8260D O1/18/20 13:04 REF Benzene [71-43-2]A 0.15 u ug/L 1 0.15 1.0 OA17033 EPA 8260D O1/18/20 13:04 REF Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 OA17033 EPA 8260D O1/18/20 13:04 REF Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 OA17033 EPA 8260D O1/18/20 13:04 REF Bromoform [75-25-2]^ 0.22 u ug/L 1 0.22 1.0 OA17033 EPA 8260D O1/18/20 13:04 REF QV-01 Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 OA17033 EPA 8260D O1/18/20 13:04 REF Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 OA17033 EPA 8260D O1/18/20 13:04 REF Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 OA17033 EPA 8260D O1/18/20 13:04 REF Chlorobenzene [108-90-7]A 0.17 u ug/L 1 0.17 1.0 OA17033 EPA 8260D O1/18/20 13:04 REF Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 OA17033 EPA 8260D O1/18/20 13:04 REF QV-01 Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 OA17033 EPA 8260D O1/18/20 13:04 REF Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 OA17033 EPA 8260D O1/18/20 13:04 REF cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 OA17033 EPA 8260D O1/18/20 13:04 REF cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 OA17033 EPA 8260D O1/18/20 13:04 REF Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 OA17033 EPA 8260D O1/18/20 13:04 REF Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 OA17033 EPA 8260D O1/18/20 13:04 REF Ethylbenzene [100-41-4]A 0.13 u ug/L 1 0.13 1.0 OA17033 EPA 8260D O1/18/20 13:04 REF Iodomethane [74-88-4]^ 1.7 u ug/L 1 1.7 5.0 OA17033 EPA 8260D O1/18/20 13:04 REF Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 OA17033 EPA 8260D O1/18/20 13:04 REF Styrene [100-42-5]A 0.11 u ug/L 1 0.11 1.0 OA17033 EPA 8260D O1/18/20 13:04 REF Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 OA17033 EPA 8260D O1/18/20 13:04 REF Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 OA17033 EPA 8260D O1/18/20 13:04 REF trans-1,2-Dichloroethene [156-60-5]^ 0.21 u ug/L 1 0.21 1.0 OA17033 EPA 8260D O1/18/20 13:04 REF trans-1,3-Dichloropropene [10061-02-6]^ 0.15 u ug/L 1 0.15 1.0 OA17033 EPA 8260D O1/18/20 13:04 REF trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 OA17033 EPA 8260D O1/18/20 13:04 REF Trichloroethene [79-01-6]^ 0.15 u ug/L 1 0.15 1.0 OA17033 EPA 8260D O1/18/20 13:04 REF Trichlorofluoromethane [75-69-4]^ 0.24 u ug/L 1 0.24 1.0 OA17033 EPA 8260D O1/18/20 13:04 REF Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 OA17033 EPA 8260D O1/18/20 13:04 REF Vinyl chloride [75-01-4]^ 0.32 u ug/L 1 0.32 1.0 OA17033 EPA 8260D O1/18/20 13:04 REF Xylenes (Total) [1330-20-7]A 0.45 u ug/L 1 0.45 3.0 OA17033 EPA 8260D O1/18/20 13:04 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 49 Of 82 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-SW1 Lab Sample ID:CDO1083-09 Received: 01/17/20 13:45 Matrix: Surface Water Sampled:01/16/20 11:49 Work Order: CDO1083 Project: Rowan County Active Landfills Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 54 1 50.0 107 % 53-136 OA17033 EPA 6260D 01118120 13:04 REF Dibromofluoromethane 54 1 50.0 107 % 67-129 OA17033 EPA 6260D 0111812013:04 REF Toluene-& 49 1 50.0 98 % 59-134 OA17033 EPA 6260D 0111812013:04 REF Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-O]^ 0.740 U ug/L 2 0.740 2.00 OA22017 EPA 6020B 01/23/20 15:44 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OA17038 EPA 6010D 01/22/20 11:09 JDH Barium [7440-39-3]^ 56.4 ug/L 1 1.10 10.0 OA17038 EPA 6010D 01/22/20 11:09 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 OA17038 EPA 6010D 01/22/20 11:09 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OA17038 EPA 6010D 01/22/20 11:09 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 OA17038 EPA 6010D 01/22/20 11:09 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 OA17038 EPA 6010D 01/22/20 11:09 JDH Copper[7440-50-8]^ 2.78 J ug/L 1 1.60 10.0 OA17038 EPA 6010D 01/22/20 11:09 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 OA17038 EPA 6010D 01/22/20 11:09 JDH Nickel[7440-02-O]^ 2.20 U ug/L 1 2.20 10.0 OA17038 EPA 6010D 01/22/20 11:09 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OA17038 EPA 6010D 01/22/20 11:09 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 OA17038 EPA 6010D 01/22/20 11:09 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 OA22017 EPA 6020B 01/23/20 15:44 RLF Vanadium [7440-62-2]^ 5.03 J ug/L 1 1.40 10.0 OA17038 EPA 6010D 01/22/20 11:09 JDH Zinc[7440-66-6]^ 4.75 J ug/L 1 4.40 10.0 OA17038 EPA 6010D 01/22/20 11:09 JDH FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 50 of $2 00� www.encolabs.com ANALYTICAL RESULTS Description: 8003-SW3 Lab Sample ID:CD01083-10 Received: 01/17/20 13:45 Matrix: Surface Water Sampled:01/16/20 10:22 Work Order: CD01083 Project: Rowan County Active Landfills Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analyte FCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 OA17033 EPA 8260D O1/18/20 13:35 REF 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 OA17033 EPA 8260D O1/18/20 13:35 REF 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 OA17033 EPA 8260D O1/18/20 13:35 REF 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 OA17033 EPA 8260D O1/18/20 13:35 REF 1,1-Dichloroethane [75-34-3]A 0.13 u ug/L 1 0.13 1.0 OA17033 EPA 8260D O1/18/20 13:35 REF 1,1-Dichloroethene [75-35-4]A 0.21 u ug/L 1 0.21 1.0 OA17033 EPA 8260D O1/18/20 13:35 REF 1,2,3-Trichloropropane [96-18-4]A 0.23 u ug/L 1 0.23 1.0 OA17033 EPA 8260D O1/18/20 13:35 REF 1,2-Dibromo-3-chloropropane [96-12-8]A 0.48 u ug/L 1 0.48 1.0 OA17033 EPA 8260D O1/18/20 13:35 REF 1,2-Dibromoethane [106-93-4]A 0.66 u ug/L 1 0.66 1.0 OA17033 EPA 8260D O1/18/20 13:35 REF 1,2-Dichlorobenzene [95-50-1]A 0.19 u ug/L 1 0.19 1.0 OA17033 EPA 8260D O1/18/20 13:35 REF 1,2-Dichloroethane [107-06-2]A 0.21 u ug/L 1 0.21 1.0 OA17033 EPA 8260D O1/18/20 13:35 REF 1,2-Dichloropropane [78-87-5]A 0.10 u ug/L 1 0.10 1.0 OA17033 EPA 8260D O1/18/20 13:35 REF 1,4-Dichlorobenzene [106-46-7]A 0.19 u ug/L 1 0.19 1.0 OA17033 EPA 8260D O1/18/20 13:35 REF 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 OA17033 EPA 8260D O1/18/20 13:35 REF 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 OA17033 EPA 8260D O1/18/20 13:35 REF 4-Methyl-2-pentanone [108-10-1]A 1.1 u ug/L 1 1.1 5.0 OA17033 EPA 8260D O1/18/20 13:35 REF Acetone [67-64-1]A 10 J ug/L 1 10 20 OA17033 EPA 8260D O1/18/20 13:35 REF Acrylonitrile [107-13-1]A 3.5 u ug/L 1 3.5 10 OA17033 EPA 8260D O1/18/20 13:35 REF Benzene [71-43-2]A 0.15 u ug/L 1 0.15 1.0 OA17033 EPA 8260D O1/18/20 13:35 REF Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 OA17033 EPA 8260D O1/18/20 13:35 REF Bromodichloromethane [75-27-4]A 0.17 u ug/L 1 0.17 1.0 OA17033 EPA 8260D O1/18/20 13:35 REF Bromoform [75-25-2]A 0.22 u ug/L 1 0.22 1.0 OA17033 EPA 8260D O1/18/20 13:35 REF QV-01 Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 OA17033 EPA 8260D O1/18/20 13:35 REF Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 OA17033 EPA 8260D O1/18/20 13:35 REF Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 OA17033 EPA 8260D O1/18/20 13:35 REF Chlorobenzene [108-90-7]A 0.17 u ug/L 1 0.17 1.0 OA17033 EPA 8260D O1/18/20 13:35 REF Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 OA17033 EPA 8260D O1/18/20 13:35 REF QV-01 Chloroform [67-66-3]A 0.18 u ug/L 1 0.18 1.0 OA17033 EPA 8260D O1/18/20 13:35 REF Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 OA17033 EPA 8260D O1/18/20 13:35 REF cis-1,2-Dichloroethene [156-59-2]A 0.15 u ug/L 1 0.15 1.0 OA17033 EPA 8260D O1/18/20 13:35 REF cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 OA17033 EPA 8260D O1/18/20 13:35 REF Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 OA17033 EPA 8260D O1/18/20 13:35 REF Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 OA17033 EPA 8260D O1/18/20 13:35 REF Ethylbenzene [100-41-4]A 0.13 u ug/L 1 0.13 1.0 OA17033 EPA 8260D O1/18/20 13:35 REF Iodomethane [74-88-4]A 1.7 u ug/L 1 1.7 5.0 OA17033 EPA 8260D O1/18/20 13:35 REF Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 OA17033 EPA 8260D O1/18/20 13:35 REF Styrene [100-42-5]A 0.11 u ug/L 1 0.11 1.0 OA17033 EPA 8260D O1/18/20 13:35 REF Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 OA17033 EPA 8260D O1/18/20 13:35 REF Toluene [108-88-3]A 0.14 u ug/L 1 0.14 1.0 OA17033 EPA 8260D O1/18/20 13:35 REF trans-1,2-Dichloroethene [156-60-5]A 0.21 u ug/L 1 0.21 1.0 OA17033 EPA 8260D O1/18/20 13:35 REF trans-1,3-Dichloropropene [10061-02-6]A 0.15 u ug/L 1 0.15 1.0 OA17033 EPA 8260D O1/18/20 13:35 REF trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 OA17033 EPA 8260D O1/18/20 13:35 REF Trichloroethene [79-01-6]A 0.15 u ug/L 1 0.15 1.0 OA17033 EPA 8260D O1/18/20 13:35 REF Trichlorofluoromethane [75-69-4]A 0.24 u ug/L 1 0.24 1.0 OA17033 EPA 8260D O1/18/20 13:35 REF Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 OA17033 EPA 8260D O1/18/20 13:35 REF Vinyl chloride [75-01-4]A 0.32 u ug/L 1 0.32 1.0 OA17033 EPA 8260D O1/18/20 13:35 REF Xylenes (Total) [1330-20-7]A 0.45 u ug/L 1 0.45 3.0 OA17033 EPA 8260D O1/18/20 13:35 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 51 Of 82 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-SW3 Lab Sample ID:CDO1083-10 Received: 01/17/20 13:45 Matrix: Surface Water Sampled:01/16/20 10:22 Work Order: CDO1083 Project: Rowan County Active Landfills Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 53 1 50.0 107 % 53-136 OA17033 EPA 6260D 01118120 13:35 REF Dibromofluoromethane 53 1 50.0 105 % 67-129 OA17033 EPA 6260D 0111812013:35 REF Toluene-& 47 1 50.0 95 % 59-134 OA17033 EPA 6260D 011181201335 REF Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-O]^ 0.740 U ug/L 2 0.740 2.00 OA22017 EPA 6020B 01/23/20 15:48 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OA17038 EPA 6010D 01/22/20 11:12 JDH Barium [7440-39-3]^ 116 ug/L 1 1.10 10.0 OA17038 EPA 6010D 01/22/20 11:12 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 OA17038 EPA 6010D 01/22/20 11:12 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OA17038 EPA 6010D 01/22/20 11:12 JDH Chromium [7440-47-3]^ 2.18 J ug/L 1 1.40 10.0 OA17038 EPA 6010D 01/22/20 11:12 JDH Cobalt[7440-48-4]^ 2.82 J ug/L 1 1.40 10.0 OA17038 EPA 6010D 01/22/20 11:12 JDH Copper[7440-50-8]^ 5.02 J ug/L 1 1.60 10.0 OA17038 EPA 6010D 01/22/20 11:12 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 OA17038 EPA 6010D 01/22/20 11:12 JDH Nickel[7440-02-O]^ 3.85 J ug/L 1 2.20 10.0 OA17038 EPA 6010D 01/22/20 11:12 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OA17038 EPA 6010D 01/22/20 11:12 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 OA17038 EPA 6010D 01/22/20 11:12 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 OA22017 EPA 6020B 01/23/20 15:48 RLF Vanadium [7440-62-2]^ 6.23 J ug/L 1 1.40 10.0 OA17038 EPA 6010D 01/22/20 11:12 JDH Zinc[7440-66-6]^ 10.0 ug/L 1 4.40 10.0 OA17038 EPA 6010D 01/22/20 11:12 JDH FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 52 of $2 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch OA16O13 -EPA 5030E MS Blank (OA36013-BLKI) Prepared: O1/16/2020 09:40 Analyzed: 01/16/2020 13:45 Analvte Result Flaq POL Units 1,1,1,2-Tetrachloroethane 0.17 U 1.0 ug/L 1,1,1-Trichloroethane 0.12 U 1.0 ug/L 1,1,2,2-Tetrachloroethane 0.28 U 1.0 ug/L 1,1,2-Trichloroethane 0.14 U 1.0 ug/L 1,1-Dichloroethane 0.13 U 1.0 ug/L 1,1-Dichloroethene 0.21 U 1.0 ug/L 1,2,3-Trichloropropane 0.23 U 1.0 ug/L 1,2-Dibromo-3-chloropropane 0.48 U 1.0 ug/L 1,2-Dibromoethane 0.66 U 1.0 ug/L 1,2-Dichlorobenzene 0.19 U 1.0 ug/L 1,2-Dichloroethane 0.21 U 1.0 ug/L 1,2-Dichloropropane 0.10 U 1.0 ug/L 1,4-Dichlorobenzene 0.19 U 1.0 ug/L 2-Butanone 1.3 U 5.0 ug/L 2-Hexanone 0.88 U 5.0 ug/L 4-Methyl-2-pentanone 1.1 U 5.0 ug/L Acetone 10 U 20 ug/L Acrylonitrile 3.5 U 10 ug/L Benzene 0.15 U 1.0 ug/L Bromochloromethane 0.48 U 1.0 ug/L Bromodichloromethane 0.17 U 1.0 ug/L Bromoform 0.22 U 1.0 ug/L Bromomethane 0.14 U 1.0 ug/L Carbon disulfide 1.5 U 5.0 ug/L Carbon tetrachloride 0.17 U 1.0 ug/L Chlorobenzene 0.17 U 1.0 ug/L Chloroethane 0.23 U 1.0 ug/L Chloroform 0.18 U 1.0 ug/L Chloromethane 0.13 U 1.0 ug/L cis- 1,2-Dichloroethene 0.15 U 1.0 ug/L cis- 1,3-Dichloropropene 0.20 U 1.0 ug/L Dibromochloromethane 0.17 U 1.0 ug/L Dibromomethane 0.27 U 1.0 ug/L Ethylbenzene 0.13 U 1.0 ug/L Iodomethane 1.7 U 5.0 ug/L Methylene chloride 0.23 U 1.0 ug/L Styrene 0.11 U 1.0 ug/L Tetrachloroethene 0.17 U 1.0 ug/L Tetrahydrofuran 0.53 U 1.0 ug/L Toluene 0.14 U 1.0 ug/L trans-1,2-Dichloroethene 0.21 U 1.0 ug/L trans-1,3-Dichloropropene 0.15 U 1.0 ug/L 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 Level Result %REC Limits RPD RPD Limit Notes 4-Bromofluorobenzene 51 ug/L 50.0 102 53-136 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 53 Of 82 QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch OA16O13 - EPA 5030E MS - Continued (� �Eo www.encolabs.com Blank (OA36013-BLK1) Continued Prepared: O1/16/2020 09:40 Analyzed: 01/16/2020 13:45 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Dibromofluoromethane 52 u91L 50.0 105 67-129 Toluene-& 48 u91L 50.0 95 59-134 LCS (OA16013-BSI) Prepared: 01/16/2020 09:40 Analyzed: 01/16/2020 11:39 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 16 1.0 ug/L 20.0 79 75-133 Benzene 20 1.0 ug/L 20.0 100 80-134 Chlorobenzene 20 1.0 ug/L 20.0 101 80-120 Toluene 20 1.0 ug/L 20.0 98 71-120 Trichloroethene 20 1.0 ug/L 20.0 100 74-120 Matrix Spike (OA16013-MS1) Prepared: 01/16/2020 09:40 Analyzed: 01/16/2020 12:10 Source: CD00803-08 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 17 1.0 ug/L 20.0 0.21 U 83 75-133 Benzene 21 1.0 ug/L 20.0 0.15 U 104 80-134 Chlorobenzene 21 1.0 ug/L 20.0 0.17 U 104 80-120 Toluene 21 1.0 ug/L 20.0 0.14 U 105 71-120 Trichloroethene 21 1.0 ug/L 20.0 0.15 U 104 74-120 Matrix Spike Dup (OA16013-MSDI) Prepared: 01/16/2020 09:40 Analyzed: 01/16/2020 12:42 Source: CD00803-08 Analvte 1,1-Dichloroethene Benzene Chlorobenzene Toluene Trichloroethene Batch OA16O21 -EPA 5O3OB MS Result 16 20 20 20 20 Flaq POL 1.0 1.0 1.0 1.0 1.0 Units ug/L ug/L ug/L ug/L ug/L Spike Level 20.0 20.0 20.0 20.0 20.0 Source Result 0.21 U 0.15 U 0.17 U 0.14 U 0.15 U %REC 79 100 102 99 100 %REC Limits 75-133 80-134 80-120 71-120 74-120 RPD 5 4 2 5 4 RPD Limit Notes 20 17 16 17 22 Blank (OA36021-BLK3) Prepared: O1/16/2020 13:52 Analyzed: 01/17/2020 02:46 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1,1,2-Tetrachloroethane 0.17 U 1.0 ug/L 1,1,1-Trichloroethane 0.12 U 1.0 ug/L 1,1,2,2-Tetrachloroethane 0.28 U 1.0 ug/L 1,1,2-Trichloroethane 0.14 U 1.0 ug/L 1,1-Dichloroethane 0.13 U 1.0 ug/L 1,1-Dichloroethene 0.21 U 1.0 ug/L 1,2,3-Trichloropropane 0.23 U 1.0 ug/L 1,2-Dibromo-3-chloropropane 0.48 U 1.0 ug/L 1,2-Dibromoethane 0.66 U 1.0 ug/L 1,2-Dichlorobenzene 0.19 U 1.0 ug/L 1,2-Dichloroethane 0.21 U 1.0 ug/L 1,2-Dichloropropane 0.10 U 1.0 ug/L 1,4-Dichlorobenzene 0.19 U 1.0 ug/L FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 54 Of 82 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch OA16O21 - EPA 5030E MS - Continued Blank (OA16021-BLK1) Continued Prepared: O1/16/2020 13:52 Analyzed: 01/17/2020 02:46 Analvte Result Flaq POL Units 2-Butanone 1.3 U 5.0 ug/L 2-Hexanone 0.88 U 5.0 ug/L 4-Methyl-2-pentanone 1.1 U 5.0 ug/L Acetone 10 U 20 ug/L Acrylonitrile 3.5 U 10 ug/L Benzene 0.15 U 1.0 ug/L Bromochloromethane 0.48 U 1.0 ug/L Bromodichloromethane 0.17 U 1.0 ug/L Bromoform 0.22 U 1.0 ug/L Bromomethane 0.14 U 1.0 ug/L Carbon disulfide 1.5 U 5.0 ug/L Carbon tetrachloride 0.17 U 1.0 ug/L Chlorobenzene 0.17 U 1.0 ug/L Chloroethane 0.23 U 1.0 ug/L Chloroform 0.18 U 1.0 ug/L Chloromethane 0.13 U 1.0 ug/L cis- 1,2-Dichloroethene 0.15 U 1.0 ug/L cis- 1,3-Dichloropropene 0.20 U 1.0 ug/L Dibromochloromethane 0.17 U 1.0 ug/L Dibromomethane 0.27 U 1.0 ug/L Ethylbenzene 0.13 U 1.0 ug/L Iodomethane 1.7 U 5.0 ug/L Methylene chloride 0.23 U 1.0 ug/L Styrene 0.11 U 1.0 ug/L Tetrachloroethene 0.17 U 1.0 ug/L Tetrahydrofuran 0.53 U 1.0 ug/L Toluene 0.14 U 1.0 ug/L trans-1,2-Dichloroethene 0.21 U 1.0 ug/L trans-1,3-Dichloropropene 0.15 U 1.0 ug/L trans-1,4-Dichloro-2-butene 0.70 U 1.0 ug/L Trichloroethene 0.15 U 1.0 ug/L Trichlorofluoromethane 0.24 U 1.0 ug/L Vinyl acetate 0.95 U 5.0 ug/L Vinyl chloride 0.32 U 1.0 ug/L Xylenes (Total) 0.45 U 3.0 ug/L Spike Source %REC RPD Level Result %REC Limits RPD Limit Notes 4-Bromofluorobenzene 54 u91L 50.0 107 53-136 Dibromofluoromethane 50 u91L 50.0 101 67-129 Toluene-d8 49 u91L 50.0 98 59-134 LCS (OA16021-BSI) Prepared: 01/16/2020 13:52 Analyzed: 01/17/2020 00:41 Spike Source %REC RPD Analvte Result Flaq Q Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 16 1.0 ug/L 20.0 81 75-133 Benzene 21 1.0 ug/L 20.0 103 80-134 Chlorobenzene 20 1.0 ug/L 20.0 99 80-120 Toluene 19 1.0 ug/L 20.0 96 71-120 Trichloroethene 21 1.0 ug/L 20.0 104 74-120 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 55 of 82 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch OA16O21 - EPA 5030E MS - Continued Matrix Spike (OA16021-MS3) Prepared: 01/16/2020 13:52 Analyzed: 01/17/2020 01:13 Source: CD00803-10 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 16 1.0 ug/L 20.0 0.21 U 82 75-133 Benzene 21 1.0 ug/L 20.0 0.15 U 107 80-134 Chlorobenzene 22 1.0 ug/L 20.0 0.17 U 108 80-120 Toluene 21 1.0 ug/L 20.0 0.14 U 105 71-120 Trichloroethene 22 1.0 ug/L 20.0 0.15 U 109 74-120 Matrix Spike Dup (OA16021-MSD1) Prepared: 01/16/2020 13:52 Analyzed: 01/17/2020 01:44 Source: CD00803-10 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 16 1.0 ug/L 20.0 0.21 U 78 75-133 6 20 Benzene 20 1.0 ug/L 20.0 0.15 U 102 80-134 4 17 Chlorobenzene 20 1.0 ug/L 20.0 0.17 U 102 80-120 5 16 Toluene 20 1.0 ug/L 20.0 0.14 U 99 71-120 6 17 Trichloroethene 21 1.0 ug/L 20.0 0.15 U 104 74-120 5 22 Batch OA17O33 - EPA 5O3OB MS Blank (OA37033-BLK3) Prepared: 01/17/2020 14:29 Analyzed: 01/18/2020 04:46 Analvte Result Flaq POL Units 1, 1, 1,2-Tetrachloroethane 0.17 U 1.0 ug/L 1,1,1-Trichloroethane 0.12 U 1.0 ug/L 1,1,2,2-Tetrachloroethane 0.28 U 1.0 ug/L 1,1,2-Trichloroethane 0.14 U 1.0 ug/L 1,1-Dichloroethane 0.13 U 1.0 ug/L 1,1-Dichloroethene 0.21 U 1.0 ug/L 1,2,3-Trichloropropane 0.23 U 1.0 ug/L 1,2-Dibromo-3-chloropropane 0.48 U 1.0 ug/L 1,2-Dibromoethane 0.66 U 1.0 ug/L 1,2-Dichlorobenzene 0.19 U 1.0 ug/L 1,2-Dichloroethane 0.21 U 1.0 ug/L 1,2-Dichloropropane 0.10 U 1.0 ug/L 1,4-Dichlorobenzene 0.19 U 1.0 ug/L 2-Butanone 1.3 U 5.0 ug/L 2-Hexanone 0.88 U 5.0 ug/L 4-Methyl-2-pentanone 1.1 U 5.0 ug/L Acetone 10 U 20 ug/L Acrylonitrile 3.5 U 10 ug/L Benzene 0.15 U 1.0 ug/L Bromochloromethane 0.48 U 1.0 ug/L Bromodichloromethane 0.17 U 1.0 ug/L Bromoform 0.22 U 1.0 ug/L Bromomethane 0.14 U 1.0 ug/L Carbon disulfide 1.5 U 5.0 ug/L Carbon tetrachloride 0.17 U 1.0 ug/L Chlorobenzene 0.17 U 1.0 ug/L Chloroethane 0.23 U 1.0 ug/L Chloroform 0.18 U 1.0 ug/L Chloromethane 0.13 U 1.0 ug/L Spike Source %REC RPD Level Result %REC Limits RPD Limit Notes FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 56 Of 82 QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch OA17O33 - EPA 5030E MS - Continued (� �Eo www.encolabs.com Blank (OA37033-BLK1) Continued Prepared: O1/17/2020 14:29 Analyzed: 01/18/2020 04:46 Analvte Result Flaq POL Units cis- 1,2-Dichloroethene 0.15 U 1.0 ug/L cis- 1,3-Dichloropropene 0.20 U 1.0 ug/L Dibromochloromethane 0.17 U 1.0 ug/L Dibromomethane 0.27 U 1.0 ug/L Ethylbenzene 0.13 U 1.0 ug/L Iodomethane 1.7 U 5.0 ug/L Methylene chloride 0.23 U 1.0 ug/L Styrene 0.11 U 1.0 ug/L Tetrachloroethene 0.17 U 1.0 ug/L Toluene 0.14 U 1.0 ug/L trans-1,2-Dichloroethene 0.21 U 1.0 ug/L trans-1,3-Dichloropropene 0.15 U 1.0 ug/L trans-1,4-Dichloro-2-butene 0.70 U 1.0 ug/L Trichloroethene 0.15 U 1.0 ug/L Trichlorofluoromethane 0.24 U 1.0 ug/L Vinyl acetate 0.95 U 5.0 ug/L Vinyl chloride 0.32 U 1.0 ug/L Xylenes (Total) 0.45 U 3.0 ug/L Spike Source %REC RPD Level Result %REC Limits RPD Limit Notes 4-Bromofluorobenzene 53 ug/L 50.0 106 53-136 Dibromofluoromethane 51 ug/L 50.0 102 67-129 Toluene-d8 48 u91L 50.0 96 59-134 LCS (OA17033-BSI) Prepared: 01/17/2020 14:29 Analyzed: 01/18/2020 02:41 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 17 1.0 ug/L 20.0 85 75-133 Benzene 21 1.0 ug/L 20.0 104 80-134 Chlorobenzene 21 1.0 ug/L 20.0 105 80-120 Toluene 21 1.0 ug/L 20.0 103 71-120 Trichloroethene 22 1.0 ug/L 20.0 108 74-120 Matrix Spike (OA17033-MS1) Prepared: 01/17/2020 14:29 Analyzed: 01/18/2020 03:13 Source: CD01041-04 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 17 1.0 ug/L 20.0 0.21 U 84 75-133 Benzene 21 1.0 ug/L 20.0 0.15 U 103 80-134 Chlorobenzene 20 1.0 ug/L 20.0 0.17 U 102 80-120 Toluene 20 1.0 ug/L 20.0 0.14 U 99 71-120 Trichloroethene 21 1.0 ug/L 20.0 0.15 U 106 74-120 Matrix Spike Dup (OA17033-MSD1) Prepared: 01/17/2020 14:29 Analyzed: 01/18/2020 03:44 Source: CD01041-04 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 15 1.0 ug/L 20.0 0.21 U 77 75-133 9 20 Benzene 19 1.0 ug/L 20.0 0.15 U 97 80-134 6 17 Chlorobenzene 20 1.0 ug/L 20.0 0.17 U 98 80-120 4 16 Toluene 19 1.0 ug/L 20.0 0.14 U 97 71-120 2 17 Trichloroethene 20 1.0 ug/L 20.0 0.15 U 99 74-120 7 22 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 57 Of 82 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch OA20021 - EPA 5030B MS Blank (OA20021-BLK3) Prepared: 01/20/2020 12:20 Analyzed: 01/20/2020 15:04 Analvte Result Flaq POL Units 1, 1, 1,2-Tetrachloroethane 0.17 U 1.0 ug/L 1,1,1-Trichloroethane 0.12 U 1.0 ug/L 1,1,2,2-Tetrachloroethane 0.28 U 1.0 ug/L 1,1,2-Trichloroethane 0.14 U 1.0 ug/L 1,1-Dichloroethane 0.13 U 1.0 ug/L 1,1-Dichloroethene 0.21 U 1.0 ug/L 1,2,3-Trichloropropane 0.23 U 1.0 ug/L 1,2-Dibromo-3-chloropropane 0.48 U 1.0 ug/L 1,2-Dibromoethane 0.66 U 1.0 ug/L 1,2-Dichlorobenzene 0.19 U 1.0 ug/L 1,2-Dichloroethane 0.21 U 1.0 ug/L 1,2-Dichloropropane 0.10 U 1.0 ug/L 1,4-Dichlorobenzene 0.19 U 1.0 ug/L 2-Butanone 1.3 U 5.0 ug/L 2-Hexanone 0.88 U 5.0 ug/L 4-Methyl-2-pentanone 1.1 U 5.0 ug/L Acetone 10 U 20 ug/L Acrylonitrile 3.5 U 10 ug/L Benzene 0.15 U 1.0 ug/L Bromochloromethane 0.48 U 1.0 ug/L Bromodichloromethane 0.17 U 1.0 ug/L Bromoform 0.22 U 1.0 ug/L Bromomethane 0.14 U 1.0 ug/L Carbon disulfide 1.5 U 5.0 ug/L Carbon tetrachloride 0.17 U 1.0 ug/L Chlorobenzene 0.17 U 1.0 ug/L Chloroethane 0.23 U 1.0 ug/L Chloroform 0.18 U 1.0 ug/L Chloromethane 0.13 U 1.0 ug/L cis- 1,2-Dichloroethene 0.15 U 1.0 ug/L cis- 1,3-Dichloropropene 0.20 U 1.0 ug/L Dibromochloromethane 0.17 U 1.0 ug/L Dibromomethane 0.27 U 1.0 ug/L Ethylbenzene 0.13 U 1.0 ug/L Iodomethane 1.7 U 5.0 ug/L Methylene chloride 0.23 U 1.0 ug/L Styrene 0.11 U 1.0 ug/L Tetrachloroethene 0.17 U 1.0 ug/L Toluene 0.14 U 1.0 ug/L trans-1,2-Dichloroethene 0.21 U 1.0 ug/L trans-1,3-Dichloropropene 0.15 U 1.0 ug/L trans-1,4-Dichloro-2-butene 0.70 U 1.0 ug/L Trichloroethene 0.15 U 1.0 ug/L Trichlorofluoromethane 0.24 U 1.0 ug/L Vinyl acetate 0.95 U 5.0 ug/L Vinyl chloride 0.32 U 1.0 ug/L Xylenes (Total) 0.45 U 3.0 ug/L Spike Source %REC RPD Level Result %REC Limits RPD Limit Notes 4-Bromofluorobenzene 53 u91L 50.0 107 53-136 Dibromofluoromethane 49 u9/L 50.0 97 67-129 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 58 Of 82 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch OA2OO21 - EPA 5030E MS - Continued Blank (OA20021-BLK1) Continued Prepared: O1/20/2020 12:20 Analyzed: 01/20/2020 15:04 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Toluene-d8 46 u91L 50.0 92 59-134 LCS (OA20021-BS1) Prepared: 01/20/2020 12:20 Analyzed: 01/20/2020 12:59 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 21 1.0 ug/L 20.0 105 75-133 Benzene 22 1.0 ug/L 20.0 112 80-134 Chlorobenzene 21 1.0 ug/L 20.0 103 80-120 Toluene 21 1.0 ug/L 20.0 105 71-120 Trichloroethene 21 1.0 ug/L 20.0 103 74-120 Matrix Spike (OA20021-MS1) Prepared: 01/20/2020 12:20 Analyzed: 01/20/2020 13:30 Source: CD00301-04RE1 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 19 1.0 ug/L 20.0 0.21 U 93 75-133 Benzene 22 1.0 ug/L 20.0 0.15 U 109 80-134 Chlorobenzene 22 1.0 ug/L 20.0 0.17 U 110 80-120 Toluene 21 1.0 ug/L 20.0 0.14 U 105 71-120 Trichloroethene 51 1.0 ug/L 20.0 28 118 74-120 Matrix Spike Dup (OA20021-MSD1) Prepared: 01/20/2020 12:20 Analyzed: 01/20/2020 14:02 Source: CD00301-04RE1 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 114 75-133 20 20 Benzene 21 1.0 ug/L 20.0 0.15 U 106 80-134 3 17 Chlorobenzene 22 1.0 ug/L 20.0 0.17 U 108 80-120 1 16 Toluene 21 1.0 ug/L 20.0 0.14 U 104 71-120 0.3 17 Trichloroethene 48 1.0 ug/L 20.0 28 103 74-120 6 22 Batch OA2OO27 - EPA 5O3OB MS Blank (OA20027-BLK3) Prepared: O1/20/2020 14:14 Analyzed: 01/21/2020 04:15 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1,1,2-Tetrachloroethane 0.17 U 1.0 ug/L 1,1,1-Trichloroethane 0.12 U 1.0 ug/L 1,1,2,2-Tetrachloroethane 0.28 U 1.0 ug/L 1,1,2-Trichloroethane 0.14 U 1.0 ug/L 1,1-Dichloroethane 0.13 U 1.0 ug/L 1,1-Dichloroethene 0.21 U 1.0 ug/L 1,2,3-Trichloropropane 0.23 U 1.0 ug/L 1,2-Dibromo-3-chloropropane 0.48 U 1.0 ug/L 1,2-Dibromoethane 0.66 U 1.0 ug/L 1,2-Dichlorobenzene 0.19 U 1.0 ug/L 1,2-Dichloroethane 0.21 U 1.0 ug/L 1,2-Dichloropropane 0.10 U 1.0 ug/L 1,4-Dichlorobenzene 0.19 U 1.0 ug/L 2-Butanone 1.3 U 5.0 ug/L FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 59 Of 82 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch OA2OO27 - EPA 5030E MS - Continued Blank (OA20027-BLK1) Continued Prepared: O1/20/2020 14:14 Analyzed: 01/21/2020 04:15 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 2-Hexanone 0.88 U 5.0 ug/L 4-Methyl-2-pentanone 1.1 U 5.0 ug/L Acetone 10 U 20 ug/L Acrylonitrile 3.5 U 10 ug/L Benzene 0.15 U 1.0 ug/L Bromochloromethane 0.48 U 1.0 ug/L Bromodichloromethane 0.17 U 1.0 ug/L Bromoform 0.22 U 1.0 ug/L Bromomethane 0.14 U 1.0 ug/L Carbon disulfide 1.5 U 5.0 ug/L Carbon tetrachloride 0.17 U 1.0 ug/L Chlorobenzene 0.17 U 1.0 ug/L Chloroethane 0.23 U 1.0 ug/L Chloroform 0.18 U 1.0 ug/L Chloromethane 0.13 U 1.0 ug/L cis- 1,2-Dichloroethene 0.15 U 1.0 ug/L cis- 1,3-Dichloropropene 0.20 U 1.0 ug/L Dibromochloromethane 0.17 U 1.0 ug/L Dibromomethane 0.27 U 1.0 ug/L Ethylbenzene 0.13 U 1.0 ug/L Iodomethane 1.7 U 5.0 ug/L Methylene chloride 0.23 U 1.0 ug/L Styrene 0.11 U 1.0 ug/L Tetrachloroethene 0.17 U 1.0 ug/L Toluene 0.14 U 1.0 ug/L trans-1,2-Dichloroethene 0.21 U 1.0 ug/L trans-1,3-Dichloropropene 0.15 U 1.0 ug/L trans-1,4-Dichloro-2-butene 0.70 U 1.0 ug/L Trichloroethene 0.15 U 1.0 ug/L Trichlorofluoromethane 0.24 U 1.0 ug/L Vinyl acetate 0.95 U 5.0 ug/L Vinyl chloride 0.32 U 1.0 ug/L Xylenes (Total) 0.45 U 3.0 ug/L 4-Bromofluorobenzene 52 u9/L 50.0 103 53-136 Dibromofluoromethane 53 u9/L 50.0 105 67-129 Toluene-d8 47 u9/L 50.0 95 59-134 LCS (OA20027-BSI) Prepared: 01/20/2020 14:14 Analyzed: 01/21/2020 02:08 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 16 1.0 ug/L 20.0 80 75-133 Benzene 19 1.0 ug/L 20.0 96 80-134 Chlorobenzene 19 1.0 ug/L 20.0 96 80-120 Toluene 19 1.0 ug/L 20.0 96 71-120 Trichloroethene 20 1.0 ug/L 20.0 100 74-120 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 60 Of 82 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch OA2OO27 - EPA 5030E MS - Continued Matrix Spike (OA20027-MS3) Prepared: 01/20/2020 14:14 Analyzed: 01/21/2020 02:40 Source: CD00890-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 17 1.0 ug/L 20.0 0.21 U 87 75-133 Benzene 21 1.0 ug/L 20.0 0.15 U 105 80-134 Chlorobenzene 21 1.0 ug/L 20.0 0.17 U 106 80-120 Toluene 20 1.0 ug/L 20.0 0.14 U 101 71-120 Trichloroethene 22 1.0 ug/L 20.0 0.15 U 110 74-120 Matrix Spike Dup (OA20027-MSD1) Prepared: 01/20/2020 14:14 Analyzed: 01/21/2020 03:11 Source: CD00890-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 18 1.0 ug/L 20.0 0.21 U 89 75-133 2 20 Benzene 20 1.0 ug/L 20.0 0.15 U 99 80-134 6 17 Chlorobenzene 19 1.0 ug/L 20.0 0.17 U 97 80-120 9 16 Toluene 19 1.0 ug/L 20.0 0.14 U 97 71-120 4 17 Trichloroethene 21 1.0 ug/L 20.0 0.15 U 105 74-120 5 22 Batch OA21O38 - EPA 5O3OB MS Blank (OA21038-BLK3) Prepared: 01/21/2020 14:55 Analyzed: 01/21/2020 17:31 Analvte Result Flaq POL Units 1, 1, 1,2-Tetrachloroethane 0.17 U 1.0 ug/L 1,1,1-Trichloroethane 0.12 U 1.0 ug/L 1,1,2,2-Tetrachloroethane 0.28 U 1.0 ug/L 1,1,2-Trichloroethane 0.14 U 1.0 ug/L 1,1-Dichloroethane 0.13 U 1.0 ug/L 1,1-Dichloroethene 0.21 U 1.0 ug/L 1,2,3-Trichloropropane 0.23 U 1.0 ug/L 1,2-Dibromo-3-chloropropane 0.48 U 1.0 ug/L 1,2-Dibromoethane 0.66 U 1.0 ug/L 1,2-Dichlorobenzene 0.19 U 1.0 ug/L 1,2-Dichloroethane 0.21 U 1.0 ug/L 1,2-Dichloropropane 0.10 U 1.0 ug/L 1,4-Dichlorobenzene 0.19 U 1.0 ug/L 2-Butanone 1.3 U 5.0 ug/L 2-Hexanone 0.88 U 5.0 ug/L 4-Methyl-2-pentanone 1.1 U 5.0 ug/L Acetone 10 U 20 ug/L Acrylonitrile 3.5 U 10 ug/L Benzene 0.15 U 1.0 ug/L Bromochloromethane 0.48 U 1.0 ug/L Bromodichloromethane 0.17 U 1.0 ug/L Bromoform 0.22 U 1.0 ug/L Bromomethane 0.14 U 1.0 ug/L Carbon disulfide 1.5 U 5.0 ug/L Carbon tetrachloride 0.17 U 1.0 ug/L Chlorobenzene 0.17 U 1.0 ug/L Chloroethane 0.23 U 1.0 ug/L Chloroform 0.18 U 1.0 ug/L Chloromethane 0.13 U 1.0 ug/L Spike Source %REC RPD Level Result %REC Limits RPD Limit Notes FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 61 of 82 QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch OA21O3B - EPA 5030E MS - Continued (� �Eo www.encolabs.com Blank (OA21038-BLK1) Continued Prepared: O1/21/2020 14:55 Analyzed: 01/21/2020 17:31 Analvte Result Flaq POL Units cis- 1,2-Dichloroethene 0.15 U 1.0 ug/L cis- 1,3-Dichloropropene 0.20 U 1.0 ug/L Dibromochloromethane 0.17 U 1.0 ug/L Dibromomethane 0.27 U 1.0 ug/L Ethylbenzene 0.13 U 1.0 ug/L Iodomethane 1.7 U 5.0 ug/L Methylene chloride 0.23 U 1.0 ug/L Styrene 0.11 U 1.0 ug/L Tetrachloroethene 0.17 U 1.0 ug/L Tetrahydrofuran 0.53 U 1.0 ug/L Toluene 0.14 U 1.0 ug/L trans-1,2-Dichloroethene 0.21 U 1.0 ug/L trans-1,3-Dichloropropene 0.15 U 1.0 ug/L trans-1,4-Dichloro-2-butene 0.70 U 1.0 ug/L Trichloroethene 0.15 U 1.0 ug/L Trichlorofluoromethane 0.24 U 1.0 ug/L Vinyl acetate 0.95 U 5.0 ug/L Vinyl chloride 0.32 U 1.0 ug/L Xylenes (Total) 0.45 U 3.0 ug/L Spike Source %REC RPD Level Result %REC Limits RPD Limit Notes 4-Bromofluorobenzene 53 u91L 50.0 106 53-136 Dibromofluoromethane 49 u91L 50.0 97 67-129 Toluene-d8 48 u91L 50.0 95 59-134 LCS (OA21038-BSI) Prepared: 01/21/2020 14:55 Analyzed: 01/21/2020 15:57 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 16 1.0 ug/L 20.0 82 75-133 Benzene 22 1.0 ug/L 20.0 108 80-134 Chlorobenzene 21 1.0 ug/L 20.0 107 80-120 Toluene 21 1.0 ug/L 20.0 104 71-120 Trichloroethene 22 1.0 ug/L 20.0 109 74-120 Matrix Spike (OA23038-MS1) Prepared: 01/21/2020 14:55 Analyzed: 01/21/2020 15:26 Source: CD01041-09 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 15 1.0 ug/L 20.0 0.21 U 73 75-133 QM-07 Benzene 21 1.0 ug/L 20.0 0.15 U 103 80-134 Chlorobenzene 20 1.0 ug/L 20.0 0.17 U 98 80-120 Toluene 20 1.0 ug/L 20.0 0.14 U 98 71-120 Trichloroethene 21 1.0 ug/L 20.0 0.15 U 103 74-120 Matrix Spike Dup (OA23038-MSD1) Prepared: 01/21/2020 14:55 Analyzed: 01/21/2020 16:28 Source: CD01041-09 Spike Source %REC RPD Analvte Result Flaq Q Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 15 1.0 ug/L 20.0 0.21 U 75 75-133 3 20 Benzene 20 1.0 ug/L 20.0 0.15 U 99 80-134 4 17 Chlorobenzene 20 1.0 ug/L 20.0 0.17 U 100 80-120 2 16 Toluene 19 1.0 ug/L 20.0 0.14 U 95 71-120 3 17 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 62 Of 82 QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch OA21O3B - EPA 5030E MS - Continued (� �Eo www.encolabs.com Matrix Spike Dup (OA23038-MSDS) Continued Prepared: O1/21/2020 14:55 Analyzed: 01/21/2020 16:28 Source: CD01041-09 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Trichloroethene 20 1.0 ug/L 20.0 0.15 U 101 74-120 2 22 Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch OA15O21 - EPA 3OO5A Blank (OA35021-BLK1) Prepared: O1/15/2020 09:57 Analyzed: 01/17/2020 10:30 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 7.60 U 10.0 ug/L Barium 1.10 U 10.0 ug/L Beryllium 0.160 U 1.00 ug/L Cadmium 0.360 U 1.00 ug/L Chromium 1.40 U 10.0 ug/L Cobalt 1.40 U 10.0 ug/L Copper 1.60 U 10.0 ug/L Lead 3.10 U 10.0 ug/L Nickel 2.20 U 10.0 ug/L Selenium 6.20 U 10.0 ug/L Silver 1.90 U 10.0 ug/L Vanadium 1.40 U 10.0 ug/L Zinc 4.40 U 10.0 ug/L LCS (OA15021-BS1) Prepared: 01/15/2020 09:57 Analyzed: 01/17/2020 10:37 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 193 10.0 ug/L 200 96 80-120 Barium 196 10.0 ug/L 200 98 80-120 Beryllium 19.3 1.00 ug/L 20.0 97 80-120 Cadmium 19.5 1.00 ug/L 20.0 97 80-120 Chromium 199 10.0 ug/L 200 99 80-120 Cobalt 197 10.0 ug/L 200 99 80-120 Copper 197 10.0 ug/L 200 99 80-120 Lead 194 10.0 ug/L 200 97 80-120 Nickel 199 10.0 ug/L 200 99 80-120 Selenium 201 10.0 ug/L 200 100 80-120 Silver 204 10.0 ug/L 200 102 80-120 Vanadium 200 10.0 ug/L 200 100 80-120 Zinc 197 10.0 ug/L 200 99 80-120 Matrix Spike (OA15021-MS1) Prepared: 01/15/2020 09:57 Analyzed: 01/17/2020 10:40 Source: CC21368-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 191 10.0 ug/L 200 7.60 U 96 75-125 Barium 229 10.0 ug/L 200 22.4 103 75-125 Beryllium 19.7 1.00 ug/L 20.0 0.160 U 99 75-125 Cadmium 20.4 1.00 ug/L 20.0 0.360 U 102 75-125 Chromium 196 10.0 ug/L 200 1.40 U 98 75-125 Cobalt 202 10.0 ug/L 200 1.40 U 101 75-125 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 63 Of 82 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch OA15O21 - EPA 3OO5A - Continued Matrix Spike (OA15021-MS3) Continued Prepared: 01/15/2020 09:57 Analyzed: 01/17/2020 10:40 Source: CC21368-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Copper 192 10.0 ug/L 200 1.60 U 96 75-125 Lead 198 10.0 ug/L 200 3.10 U 99 75-125 Nickel 207 10.0 ug/L 200 2.20 U 104 75-125 Selenium 210 10.0 ug/L 200 6.20 U 105 75-125 Silver 197 10.0 ug/L 200 1.90 U 98 75-125 Vanadium 197 10.0 ug/L 200 1.40 U 98 75-125 Zinc 211 10.0 ug/L 200 6.97 102 75-125 Matrix Spike Dup (OA35021-MSD1) Prepared: 01/15/2020 09:57 Analyzed: 01/17/2020 10:42 Source: CC21368-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 208 10.0 ug/L 200 7.60 U 104 75-125 9 20 Barium 239 10.0 ug/L 200 22.4 109 75-125 5 20 Beryllium 20.5 1.00 ug/L 20.0 0.160 U 103 75-125 4 20 Cadmium 21.1 1.00 ug/L 20.0 0.360 U 106 75-125 4 20 Chromium 204 10.0 ug/L 200 1.40 U 102 75-125 4 20 Cobalt 210 10.0 ug/L 200 1.40 U 105 75-125 4 20 Copper 199 10.0 ug/L 200 1.60 U 100 75-125 4 20 Lead 200 10.0 ug/L 200 3.10 U 100 75-125 1 20 Nickel 217 10.0 ug/L 200 2.20 U 109 75-125 5 20 Selenium 212 10.0 ug/L 200 6.20 U 106 75-125 1 20 Silver 204 10.0 ug/L 200 1.90 U 102 75-125 3 20 Vanadium 205 10.0 ug/L 200 1.40 U 102 75-125 4 20 Zinc 221 10.0 ug/L 200 6.97 107 75-125 5 20 Post Spike (OA15021-PSI) Prepared: 01/15/2020 09:57 Analyzed: 01/17/2020 10:45 Source: CC21368-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 0.200 0.0100 mg/L 0.200 -0.00328 100 80-120 Barium 0.232 0.0100 mg/L 0.200 0.0224 105 80-120 Beryllium 0.0205 0.00100 mg/L 0.0200 -9.12E-5 102 80-120 Cadmium 0.0208 0.00100 mg/L 0.0200 3.05E-6 104 80-120 Chromium 0.203 0.0100 mg/L 0.200 8.97E-5 102 80-120 Cobalt 0.206 0.0100 mg/L 0.200 0.000275 103 80-120 Copper 0.198 0.0100 mg/L 0.200 0.00125 99 80-120 Lead 0.201 0.0100 mg/L 0.200 -0.000249 101 80-120 Nickel 0.212 0.0100 mg/L 0.200 0.00120 105 80-120 Selenium 0.208 0.0100 mg/L 0.200 0.000749 103 80-120 Silver 0.196 0.0100 mg/L 0.200 -0.000825 98 80-120 Vanadium 0.203 0.0100 mg/L 0.200 0.000436 101 80-120 Zinc 0.217 0.0100 mg/L 0.200 0.00697 105 80-120 Batch OA15O24 - EPA 3OO5A Blank (OA35024-BLKI) Prepared: 01/15/2020 10:06 Analyzed: 01/15/2020 19:27 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 0.370 U 1.00 ug/L FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 64 of 82 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch OA15O24 - EPA 3OO5A - Continued Blank (OA15024-BLK1) Continued Prepared: O1/15/2020 10:06 Analyzed: 01/15/2020 19:27 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Thallium 0.110 U 1.00 ug/L LCS (OA15024-BS1) Prepared: O1/15/2020 10:06 Analyzed: 01/15/2020 19:32 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 22.4 1.00 ug/L 20.0 112 80-120 Thallium 21.2 1.00 ug/L 20.0 106 80-120 Matrix Spike (OA15024-MS3) Prepared: O1/15/2020 10:06 Analyzed: 01/15/2020 19:36 Source: CD00805-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 46.2 2.00 ug/L 40.0 0.740 U 115 75-125 Thallium 39.5 2.00 ug/L 40.0 0.220 U 99 75-125 Matrix Spike Dup (OA35024-MSD1) Prepared: O1/15/2020 10:06 Analyzed: 01/15/2020 19:41 Source: CD00805-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 45.6 2.00 ug/L 40.0 0.740 U 114 75-125 1 20 Thallium 39.7 2.00 ug/L 40.0 0.220 U 99 75-125 0.5 20 Post Spike (OA15024-PS1) Prepared: 01/15/2020 10:06 Analyzed: 01/15/2020 20:05 Source: CD00805-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 22.8 1.00 ug/L 20.0 0.0509 114 75-125 Thallium 19.6 1.00 ug/L 20.0 0.0756 98 75-125 Batch OA15O5O - EPA 3OO5A Blank (OA35050-BLK1) Prepared: O1/15/2020 16:48 Analyzed: 01/22/2020 13:41 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 (OA35050-BSI) Prepared: O1/15/2020 16:48 Analyzed: 01/22/2020 14:56 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 22.3 1.00 ug/L 20.0 112 80-120 Thallium 22.4 1.00 ug/L 20.0 112 80-120 Matrix Spike (OA15050-MS3) Prepared: O1/15/2020 16:48 Analyzed: 01/22/2020 13:50 Source: CD00890-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 44.3 2.00 ug/L 40.0 0.740 U 111 75-125 Thallium 43.4 2.00 ug/L 40.0 0.220 U 108 75-125 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 65 Of $2 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch OA15O5O - EPA 3OO5A - Continued Matrix Spike Dup (OA35050-MSDI) Prepared: O1/15/2020 16:48 Analyzed: 01/22/2020 13:54 Source: CD00890-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 42.7 2.00 ug/L 40.0 0.740 U 107 75-125 4 20 Thallium 41.3 2.00 ug/L 40.0 0.220 U 103 75-125 5 20 Post Spike (OA35050-PSI) Prepared: O1/15/2020 16:48 Analyzed: 01/22/2020 13:58 Source: CD00890-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 22.2 1.00 ug/L 20.0 0.00667 111 75-125 Thallium 21.7 1.00 ug/L 20.0 0.00497 109 75-125 Batch OA15O51 - EPA 3OO5A Blank (OA35051-BLK3) Prepared: O1/15/2020 16:57 Analyzed: 01/17/2020 11:23 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 7.60 U 10.0 ug/L Barium 1.10 U 10.0 ug/L Beryllium 0.160 U 1.00 ug/L Cadmium 0.360 U 1.00 ug/L Chromium 1.40 U 10.0 ug/L Cobalt 1.40 U 10.0 ug/L Copper 1.60 U 10.0 ug/L Lead 3.10 U 10.0 ug/L Nickel 2.20 U 10.0 ug/L Selenium 6.20 U 10.0 ug/L Silver 1.90 U 10.0 ug/L Vanadium 1.40 U 10.0 ug/L Zinc 4.40 U 10.0 ug/L LCS (OA15051-13SI) Prepared: 01/15/2020 16:57 Analyzed: 01/17/2020 11:32 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 187 10.0 ug/L 200 94 80-120 Barium 191 10.0 ug/L 200 96 80-120 Beryllium 19.6 1.00 ug/L 20.0 98 80-120 Cadmium 19.1 1.00 ug/L 20.0 96 80-120 Chromium 195 10.0 ug/L 200 97 80-120 Cobalt 189 10.0 ug/L 200 95 80-120 Copper 193 10.0 ug/L 200 97 80-120 Lead 183 10.0 ug/L 200 92 80-120 Nickel 193 10.0 ug/L 200 96 80-120 Selenium 189 10.0 ug/L 200 95 80-120 Silver 202 10.0 ug/L 200 101 80-120 Vanadium 197 10.0 ug/L 200 98 80-120 Zinc 191 10.0 ug/L 200 95 80-120 Matrix Spike (OA15051-MS1) Prepared: 01/15/2020 16:57 Analyzed: 01/17/2020 11:35 Source: CD00890-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 66 of 82 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch OA15O51 - EPA 3OO5A - Continued Matrix Spike (OA15051-MS3) Continued Prepared: 01/15/2020 16:57 Analyzed: 01/17/2020 11:35 Source: CD00890-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 196 10.0 ug/L 200 7.60 U 98 75-125 Barium 252 10.0 ug/L 200 61.1 96 75-125 Beryllium 19.6 1.00 ug/L 20.0 0.198 97 75-125 Cadmium 18.8 1.00 ug/L 20.0 0.360 U 94 75-125 Chromium 197 10.0 ug/L 200 1.40 U 99 75-125 Cobalt 193 10.0 ug/L 200 1.40 U 96 75-125 Copper 196 10.0 ug/L 200 1.60 U 98 75-125 Lead 191 10.0 ug/L 200 3.10 U 95 75-125 Nickel 194 10.0 ug/L 200 2.20 U 97 75-125 Selenium 194 10.0 ug/L 200 6.20 U 97 75-125 Silver 203 10.0 ug/L 200 1.90 U 101 75-125 Vanadium 201 10.0 ug/L 200 1.40 U 100 75-125 Zinc 195 10.0 ug/L 200 4.83 95 75-125 Matrix Spike Dup (OA15051-MSD1) Prepared: 01/15/2020 16:57 Analyzed: 01/17/2020 11:38 Source: CD00890-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 178 10.0 ug/L 200 7.60 U 89 75-125 10 20 Barium 257 10.0 ug/L 200 61.1 98 75-125 2 20 Beryllium 19.5 1.00 ug/L 20.0 0.198 97 75-125 0.6 20 Cadmium 19.2 1.00 ug/L 20.0 0.360 U 96 75-125 2 20 Chromium 192 10.0 ug/L 200 1.40 U 96 75-125 2 20 Cobalt 188 10.0 ug/L 200 1.40 U 94 75-125 3 20 Copper 187 10.0 ug/L 200 1.60 U 94 75-125 5 20 Lead 182 10.0 ug/L 200 3.10 U 91 75-125 5 20 Nickel 196 10.0 ug/L 200 2.20 U 98 75-125 1 20 Selenium 183 10.0 ug/L 200 6.20 U 92 75-125 6 20 Silver 194 10.0 ug/L 200 1.90 U 97 75-125 5 20 Vanadium 194 10.0 ug/L 200 1.40 U 97 75-125 3 20 Zinc 197 10.0 ug/L 200 4.83 96 75-125 0.7 20 Post Spike (OA15051-PSI) Prepared: 01/15/2020 16:57 Analyzed: 01/17/2020 11:46 Source: CD00890-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 0.198 0.0100 mg/L 0.200 -0.00129 99 80-120 Barium 0.259 0.0100 mg/L 0.200 0.0611 99 80-120 Beryllium 0.0205 0.00100 mg/L 0.0200 0.000198 101 80-120 Cadmium 0.0196 0.00100 mg/L 0.0200 -1.31E-5 98 80-120 Chromium 0.206 0.0100 mg/L 0.200 0.000480 103 80-120 Cobalt 0.201 0.0100 mg/L 0.200 0.000286 100 80-120 Copper 0.202 0.0100 mg/L 0.200 0.000505 101 80-120 Lead 0.194 0.0100 mg/L 0.200 -0.000558 97 80-120 Nickel 0.202 0.0100 mg/L 0.200 0.00203 100 80-120 Selenium 0.198 0.0100 mg/L 0.200 0.00309 98 80-120 Silver 0.204 0.0100 mg/L 0.200 -0.000698 102 80-120 Vanadium 0.209 0.0100 mg/L 0.200 0.00101 104 80-120 Zinc 0.203 0.0100 mg/L 0.200 0.00483 99 80-120 Batch OA15O52 - EPA 3OO5A FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 67 of 82 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch OA15O52 - EPA 3OO5A - Continued Blank (OA35052-BLK3) Prepared: O1/15/2020 17:02 Analyzed: 01/17/2020 13:18 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 7.60 U 10.0 ug/L Barium 1.10 U 10.0 ug/L Beryllium 0.160 U 1.00 ug/L Cadmium 0.360 U 1.00 ug/L Chromium 1.40 U 10.0 ug/L Cobalt 1.40 U 10.0 ug/L Copper 1.60 U 10.0 ug/L Lead 3.10 U 10.0 ug/L Nickel 2.20 U 10.0 ug/L Selenium 6.20 U 10.0 ug/L Silver 1.90 U 10.0 ug/L Vanadium 1.40 U 10.0 ug/L Zinc 4.40 U 10.0 ug/L LCS (OA15052-BS1) Prepared: 01/15/2020 17:02 Analyzed: 01/17/2020 13:24 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 189 10.0 ug/L 200 94 80-120 Barium 196 10.0 ug/L 200 98 80-120 Beryllium 19.2 1.00 ug/L 20.0 96 80-120 Cadmium 19.2 1.00 ug/L 20.0 96 80-120 Chromium 198 10.0 ug/L 200 99 80-120 Cobalt 194 10.0 ug/L 200 97 80-120 Copper 198 10.0 ug/L 200 99 80-120 Lead 187 10.0 ug/L 200 93 80-120 Nickel 198 10.0 ug/L 200 99 80-120 Selenium 187 10.0 ug/L 200 94 80-120 Silver 206 10.0 ug/L 200 103 80-120 Vanadium 201 10.0 ug/L 200 101 80-120 Zinc 194 10.0 ug/L 200 97 80-120 Matrix Spike (OA15052-MS1) Prepared: 01/15/2020 17:02 Analyzed: 01/17/2020 13:27 Source: CD00890-07 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 183 10.0 ug/L 200 7.60 U 92 75-125 Barium 251 10.0 ug/L 200 55.2 98 75-125 Beryllium 19.7 1.00 ug/L 20.0 0.196 97 75-125 Cadmium 19.1 1.00 ug/L 20.0 0.360 U 96 75-125 Chromium 199 10.0 ug/L 200 1.40 U 100 75-125 Cobalt 195 10.0 ug/L 200 1.40 U 97 75-125 Copper 201 10.0 ug/L 200 1.60 U 100 75-125 Lead 187 10.0 ug/L 200 3.10 U 93 75-125 Nickel 197 10.0 ug/L 200 2.20 U 99 75-125 Selenium 191 10.0 ug/L 200 6.20 U 95 75-125 Silver 207 10.0 ug/L 200 1.90 U 103 75-125 Vanadium 202 10.0 ug/L 200 1.40 U 101 75-125 Zinc 199 10.0 ug/L 200 7.60 96 75-125 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 68 of 82 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch OA15O52 - EPA 3OO5A - Continued Matrix Spike Dup (OA15052-MSDS) Prepared: 01/15/2020 17:02 Analyzed: 01/17/2020 13:29 Source: CD00890-07 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 3 20 Barium 255 10.0 ug/L 200 55.2 100 75-125 2 20 Beryllium 20.7 1.00 ug/L 20.0 0.196 102 75-125 5 20 Cadmium 19.5 1.00 ug/L 20.0 0.360 U 97 75-125 2 20 Chromium 202 10.0 ug/L 200 1.40 U 101 75-125 1 20 Cobalt 196 10.0 ug/L 200 1.40 U 98 75-125 0.5 20 Copper 203 10.0 ug/L 200 1.60 U 102 75-125 1 20 Lead 186 10.0 ug/L 200 3.10 U 93 75-125 0.7 20 Nickel 199 10.0 ug/L 200 2.20 U 100 75-125 1 20 Selenium 187 10.0 ug/L 200 6.20 U 93 75-125 2 20 Silver 214 10.0 ug/L 200 1.90 U 107 75-125 3 20 Vanadium 205 10.0 ug/L 200 1.40 U 103 75-125 2 20 Zinc 201 10.0 ug/L 200 7.60 97 75-125 1 20 Post Spike (OA15052-PS1) Prepared: 01/15/2020 17:02 Analyzed: 01/17/2020 13:32 Source: CD00890-07 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 0.196 0.0100 mg/L 0.200 -0.00237 98 80-120 Barium 0.253 0.0100 mg/L 0.200 0.0552 99 80-120 Beryllium 0.0200 0.00100 mg/L 0.0200 0.000196 99 80-120 Cadmium 0.0197 0.00100 mg/L 0.0200 -1.01E-5 98 80-120 Chromium 0.204 0.0100 mg/L 0.200 0.000426 102 80-120 Cobalt 0.202 0.0100 mg/L 0.200 0.000324 101 80-120 Copper 0.208 0.0100 mg/L 0.200 0.000644 104 80-120 Lead 0.198 0.0100 mg/L 0.200 -0.000123 99 80-120 Nickel 0.203 0.0100 mg/L 0.200 0.00146 101 80-120 Selenium 0.201 0.0100 mg/L 0.200 -0.0106 100 80-120 Silver 0.204 0.0100 mg/L 0.200 0.000248 102 80-120 Vanadium 0.207 0.0100 mg/L 0.200 0.000791 103 80-120 Zinc 0.205 0.0100 mg/L 0.200 0.00760 98 80-120 Batch OA17O38 - EPA 3OO5A Blank (OA17038-BLK3) Prepared: 01/17/2020 16:36 Analyzed: 01/22/2020 10:15 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 7.60 U 10.0 ug/L Barium 1.10 U 10.0 ug/L Beryllium 0.160 U 1.00 ug/L Cadmium 0.360 U 1.00 ug/L Chromium 1.40 U 10.0 ug/L Cobalt 1.40 U 10.0 ug/L Copper 1.60 U 10.0 ug/L Lead 3.10 U 10.0 ug/L Nickel 2.20 U 10.0 ug/L Selenium 6.20 U 10.0 ug/L Silver 1.90 U 10.0 ug/L Vanadium 1.40 U 10.0 ug/L Zinc 4.40 U 10.0 ug/L FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 69 Of 82 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch OA17O3B - EPA 3OO5A - Continued LCS (OA17038-BSI) Prepared: 01/17/2020 16:36 Analyzed: 01/22/2020 10:21 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 192 10.0 ug/L 200 96 80-120 Barium 191 10.0 ug/L 200 95 80-120 Beryllium 19.6 1.00 ug/L 20.0 98 80-120 Cadmium 18.8 1.00 ug/L 20.0 94 80-120 Chromium 193 10.0 ug/L 200 97 80-120 Cobalt 193 10.0 ug/L 200 97 80-120 Copper 192 10.0 ug/L 200 96 80-120 Lead 182 10.0 ug/L 200 91 80-120 Nickel 191 10.0 ug/L 200 95 80-120 Selenium 191 10.0 ug/L 200 95 80-120 Silver 204 10.0 ug/L 200 102 80-120 Vanadium 196 10.0 ug/L 200 98 80-120 Zinc 189 10.0 ug/L 200 95 80-120 Matrix Spike (OA17038-MS1) Prepared: 01/17/2020 16:36 Analyzed: 01/22/2020 10:26 Source: CC21740-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 184 10.0 ug/L 200 7.60 U 92 75-125 Barium 258 10.0 ug/L 200 62.1 98 75-125 Beryllium 20.4 1.00 ug/L 20.0 0.160 U 102 75-125 Cadmium 19.6 1.00 ug/L 20.0 0.360 U 98 75-125 Chromium 199 10.0 ug/L 200 1.40 U 100 75-125 Cobalt 195 10.0 ug/L 200 1.40 U 97 75-125 Copper 197 10.0 ug/L 200 1.60 U 99 75-125 Lead 182 10.0 ug/L 200 3.10 U 91 75-125 Nickel 197 10.0 ug/L 200 2.20 U 99 75-125 Selenium 189 10.0 ug/L 200 6.20 U 94 75-125 Silver 208 10.0 ug/L 200 1.90 U 104 75-125 Vanadium 202 10.0 ug/L 200 1.40 U 101 75-125 Zinc 197 10.0 ug/L 200 4.40 U 98 75-125 Matrix Spike Dup (OA17038-MSD1) Prepared: 01/17/2020 16:36 Analyzed: 01/22/2020 10:28 Source: CC21740-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 190 10.0 ug/L 200 7.60 U 95 75-125 3 20 Barium 256 10.0 ug/L 200 62.1 97 75-125 0.9 20 Beryllium 20.3 1.00 ug/L 20.0 0.160 U 101 75-125 0.5 20 Cadmium 19.2 1.00 ug/L 20.0 0.360 U 96 75-125 2 20 Chromium 197 10.0 ug/L 200 1.40 U 99 75-125 1 20 Cobalt 195 10.0 ug/L 200 1.40 U 97 75-125 0.004 20 Copper 196 10.0 ug/L 200 1.60 U 98 75-125 0.4 20 Lead 186 10.0 ug/L 200 3.10 U 93 75-125 2 20 Nickel 197 10.0 ug/L 200 2.20 U 98 75-125 0.2 20 Selenium 197 10.0 ug/L 200 6.20 U 98 75-125 4 20 Silver 206 10.0 ug/L 200 1.90 U 103 75-125 0.8 20 Vanadium 200 10.0 ug/L 200 1.40 U 100 75-125 0.8 20 Zinc 195 10.0 ug/L 200 4.40 U 97 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 70 of 82 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch OA17O3B - EPA 3OO5A - Continued Post Spike (OA37038-PS3) Prepared: O1/17/2020 16:36 Analyzed: 01/22/2020 10:37 Source: CC21740-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 0.189 0.0100 mg/L 0.200 -0.00429 95 80-120 Barium 0.262 0.0100 mg/L 0.200 0.0621 100 80-120 Beryllium 0.0211 0.00100 mg/L 0.0200 6.09E-5 105 80-120 Cadmium 0.0206 0.00100 mg/L 0.0200 3.00E-5 103 80-120 Chromium 0.207 0.0100 mg/L 0.200 -0.000692 103 80-120 Cobalt 0.203 0.0100 mg/L 0.200 0.000740 101 80-120 Copper 0.207 0.0100 mg/L 0.200 0.000720 103 80-120 Lead 0.196 0.0100 mg/L 0.200 0.00122 97 80-120 Nickel 0.204 0.0100 mg/L 0.200 0.00200 101 80-120 Selenium 0.192 0.0100 mg/L 0.200 9.16E-5 96 80-120 Silver 0.204 0.0100 mg/L 0.200 0.000137 102 80-120 Vanadium 0.210 0.0100 mg/L 0.200 -4.57E-6 105 80-120 Zinc 0.202 0.0100 mg/L 0.200 0.00347 99 80-120 Batch OA22O17 - EPA 30O5A Blank (OA22017-BLK3) Prepared: O1/22/2020 10:29 Analyzed: 01/23/2020 13:39 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 0.370 U 1.00 ug/L Thallium 0.110 U 1.00 ug/L LCS (OA22017-BSI) Prepared: O1/22/2020 10:29 Analyzed: 01/23/2020 13:44 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 20.3 1.00 ug/L 20.0 101 80-120 Thallium 20.1 1.00 ug/L 20.0 100 80-120 Matrix Spike (OA22017-MS3) Prepared: O1/22/2020 10:29 Analyzed: 01/23/2020 13:48 Source: CC21983-05 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 43.4 2.00 ug/L 40.0 1.91 104 75-125 Thallium 40.1 2.00 ug/L 40.0 0.220 U 100 75-125 Matrix Spike Dup (OA22017-MSD1) Prepared: O1/22/2020 10:29 Analyzed: 01/23/2020 13:52 Source: CC21983-05 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 43.5 2.00 ug/L 40.0 1.91 104 75-125 0.2 20 Thallium 41.5 2.00 ug/L 40.0 0.220 U 104 75-125 3 20 Post Spike (OA22017-PS1) Prepared: O1/22/2020 10:29 Analyzed: 01/23/2020 13:56 Source: CC21983-05 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 22.9 1.00 ug/L 20.0 0.957 110 75-125 Thallium 21.2 1.00 ug/L 20.0 0.00297 106 75-125 Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Batch OA15037 -EPA 5O3OB MS FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 71 of 82 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Blank (OA36037-BLK3) Prepared: O1/16/2020 00:00 Analyzed: 01/16/2020 13:13 Spike Source %REC RPD Analvte Result Flao POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 0.80 U 2.0 ug/L Toluene-d8 5.3 u9/L 5.00 107 75-125 LCS (OA16037-BSI) Prepared: 01/16/2020 00:00 Analyzed: 01/16/2020 11:29 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 26 2.0 ug/L 25.0 103 80-133 Toluene-d8 4.9 u9/L 5.00 98 75-125 Matrix Spike (OA16037-MS1) Prepared: 01/16/2020 00:00 Analyzed: 01/16/2020 11:57 Source: AD00150-01 Spike Source %REC RPD Analvte Result Flaq Q Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 33 2.0 ug/L 25.0 9.7 95 80-133 Toluene-d8 4.9 u9/L 5.00 99 75-125 Matrix Spike Dup (OA16037-MSDS) Prepared: 01/16/2020 00:00 Analyzed: 01/16/2020 12:22 Source: AD00150-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 34 2.0 ug/L 25.0 9.7 96 80-133 1 19 Toluene-d8 5.3 u9/L 5.00 106 75-125 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 72 Of 82 (� �Eo www.encolabs.com FLAGS/NOTES AND DEFINITIONS B The analyte was detected in the associated method blank. D The sample was analyzed at dilution. J The reported value is between the laboratory method detection limit (MDL) and the laboratory method reporting limit (MRL), adjusted for actual sample preparation data and moisture content, where applicable. U The analyte was analyzed for but not detected to the level shown, adjusted for actual sample preparation data and moisture content, where applicable. E The concentration indicated for this analyte is an estimated value above the calibration range of the instrument. This value is considered an estimate. MRL Method Reporting Limit. The MRL is roughly equivalent to the practical quantitation limit (PQL) and is based on the low point of the calibration curve, when applicable, sample preparation factor, dilution factor, and, in the case of soil samples, moisture content. PQL PQL: Practical Quantitation Limit. The PQL presented is the laboratory MRL. N The analysis indicates the presence of an analyte for which there is presumptive evidence (85% or greater confidence) to make a "tentative identification". P Greater than 25% concentration difference was observed between the primary and secondary GC column. The lower concentration is reported. [CALC] Calculated analyte - MDL/MRL reported to the highest reporting limit of the component analyses. 0-01 This compound is a common laboratory contaminant. QL-02 The associated laboratory control sample exhibited high bias; since the result is ND, there is no impact. QM-07 The spike recovery was outside acceptance limits for the MS and/or MSD. The batch was accepted based on acceptable LCS recovery. QV-01 The associated continuing calibration verification standard exhibited high bias; since the result is ND, there is no impact. FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 73 of 82 8 i f ' o d m v ro K 3 .B c ¢¢ 3 3 C' m a m a m � m NK Tr m 0 m 7 3 7 .o 0 0;� Q 0 N c> N C e p c c`. D m 9 m 7 4 4 3: D n CD m � m � a SO l m � f � o G1 n fD � �l Y.J 6 m fn m W,C7 �N D f) -3a_q m m 172 W a 1 n m y m A m d f� ci m �A V1 c9 Q 0 - l CPT,:AA 3 '4 qtA ? h pr Al w m V ^L4 a Y w0 w m RL i A V1 'O 9 a m ro � ¢ N A I � N �� `�1 /� wwVl7 \ TZ 6 o D Ap I A0.4 N,pe,id, C,,Cr,c,A,p sb Sese'rl a Z60 p VIA 1 m w N 0 ± r cr m [� w (� ^l O CCD m nm D Ali - N CD III--- a fD O a m w � � CD d C N m Ca 1 y O 1 CD CD am N 5 w in Paae 74 of 82 vI Sample Preservation Verification. ENCO Cary Work Order: CC21741 Client: Golder Associates, Inc. (GO007) Logged In: 14-Jan-20 14:34 Preservation Check Performed By: C C 21741-01 Project: Rowan County Active Landfills Project #: 19123756.100 Logged By: John C King DatelTime: �' ZU Cont Type. Pres (pH) pH Checked / I pH Adjusted DateTFime I Reagent Used/Comments Requirement in Control Adjusted A 250mLP+HNO3 <2 Y! N I NA I Y t3l NA CC21741-02 Cant Type Pres (pH) pH Chec ed ! pH Adjusted DateMme Reagent Used/Comments Requirement In Control Adjusted A 250mLP+HNO3 <2 �Y / N / NA Y / N / NA CC21741-03 Cont Type Pres (pH) Requirement pH Checked f In Control pH Adjusted DatefTime Adjusted Reagent Used/Comments A 250mLP+HNO3 <2 Y' I N/ NA I Y I. N 1 NA CC21741-04 Gant Type Pres (pH) Requirement pH Checked / In Control pH Adjusted Date/Time Adjusted Reagent Used/Comments A 250mLP+HNO3 <2 ! N 1 NA Y / / NA J Reagent Name ID 1 2 pH Strip ID: oce j Reagent Name ID 3 4 Reagent Name ID 5 6 C:IELMNT1Printlwko_PreservationCheck.rpt Page 75 of 82 -el V V i 1 1 U) w Ft O O m a J Z O R m LLI Cl) Z O U 1 H Z lli 2 Z O Z W l l O wl m 07 d r p ° L r) N d £ C Q U U C ) F m �" C CL E f11 � n p CL a E m m QI a cc 97 o E E C O U W m H 6 w C mm O m $ d z � m E p 3 i 0 2 G C C �y �rh itbs x x x x x x x X X X KX CH ws [109L9'p 3 GB' 1 mp nwv acm d c a U E E E z� J xipueddV apgZg x x x x x x x x x a� i g m E �lj c 12 $ w m U o. No E N a 0) E m m o v m W v 9' F s M N x ( r (ar: a E a, a ¢ m m cn n I_ lti1 d- Z W Lam- m Jco a c IL Q T W m R �^ OO L1 z � OD co � a ? in L7 E.r� r„ 82 m =' E a E = Page 76 of U 4 U h cn to , E N d c M N v N a O 2 c J E F �� in W 3 S a. m + X D _d L 3 U. Z^ c o ° U a �Z`A'IiyS x x XC x x x x x x>1` iL IwS�08t9'P��3 't � a x c mwowV Gomm 0 o PQWGgX3 OOW91 XpAddy 0=9 � m )queddV aa9zs x x x x x x x x 4 O 0 � C ° U ° A d E o ( m C m CM E N � U 1-4 E m R ❑ C V 1 -A f�'Ll V C R K aR E N c m I Z € C o k O .W O C iB R 1 r to w C CS w t,j `�V` a E v ro E U-% m C1. m Q a C _. E _m � ffi ¢ U U :c �p U m m m a: m rr c v 0 E E E o ! o 0 f ¢ 1 O to m toH N a ca LWv w m c ¢ c oe c ¢ S m m IE v m m Q ¢ L d 1 Page 77 of F fn U 1� Sample Preservation Verification ENCO Cary Work Order: CDO0890 Project: Rowan County Active Landfills Client: Golder Associates, Inc. (GO007) Project#: 19123756.100 Logged ln: 15-Jan-20 13:31 Logged By: John C King Preservation Check Performed By: C Date/Time'. k — ( CDO0890-01 Cent T e Yp Pres (pH) Requirement pH Checked 1 In Control Date/Time PH Adjusted Adjusted Reagent Used/Comments A 250mLP+HNO3 <2 ! N I NA Y NA CDO0890-02 Cont Type Pres (pH) Requirement pH Checked / In Control PH Adjusted Date/Time Adjusted Reagent Used/Comments A 250mLP+HNO3 <2 Y / N / NA Y �11 1 NA B 250mLP+HNO3 <2 1 N/ NA Y I 1 NA CDO0890-03 Cont T pe Y Pres (pH) Requirement pH Checked ! In Control Date�me pH Adjusted Adiusted Reagent Used/Comments A 250mLP+HNO3 1 2 1 Y / N / NA I YIN I NA CDO0890-04 Cant Type Pres (PH) Requirement pH Checked / in Control pl-1 Adjusted Date/Time Reagent Used/Comments Adjusted A 250mLP+HNO3 <2 i' l N! NA FY I I NA CDO0890-05 Cont 7 pe Y -Pres (pH) Requirement PH Checked I In Control DatelTime pH Adjusted Adiusted Reagent Used/Comments A 250mLP+HNO3 <2 Y ,' N r NA Y/ N 1 NA CDO0890-06 Cent T e Yp Pres (pH) Requirement pH Checked/ In Control DateMme pH Adjusted Adjusted Reagent Used/Comments A 250mLP+HNO3 I <2 0 1 N / NA I Y / / NA CDO0890-07 Cent Type Pres (pH) Requirement pH Checked / In Control pH Adjusted Date/Time Adjusted Reagent Used/Comments A 250rriLP+HNO3 <2 Y, i N / NA Y / f� I NA CDO0890-08 Gant T e YP Pres (pH) Requirement pH Checked I In Control pDate/Time H Adjusted Adjusted Reagent Used/Comments A 250mLP+HNO3 <2 -Y 1 N/ NA Y l I NA C:IELMNT1Printlwko_PreservationCheck. rpt I Page 78 of 82 ; Sample Preservation Verification ENGO Cary Work Order: CDO0890 Project: Rowan County Active Landfills Client: Golder Associates, Inc. (G0007) Project#: 19123756,100 Logged In: 15-Jan-20 13:31 Logged By: John C King Preservation Check Performed By: _ Date/Time: _ )-15 zo (3C( S CDO0890-10 Cont Type Pres (pH) Requirement PH Checked / In Control pH Adjusted Date/Time Adjusted Reagent Used/Comments A 250mLP+HNO3 IF] <2 N / NA Y /L. / NA Rea ent Name ID 1. 2 pH Strip ID:�ll(j(e Reacient Name ID 3 4 Rea ent Name ID 5 6 C:IELMNTIPrintlwko_PreservationCheck. rpt Page 79 of 82 119 E O u VI f0 O u c N 3 3 U) w cc 0 N O m U m 0. M LL z LL 6 0=� m > m adx� a p kv m IJ.I z U p a z o w v c a � z a° m 0� z� Lij a � a C � � 2 a r� 7 U m C Q) � \V� E Z ❑ J C� �T Q c 4 ° U b ° Q tl � a .2 N 'XI �o o C! i W Py 0 92Q X m �%� C O�C C` � / x I x x V v C ° o t n ~ U v J C o Lr L_ c- 1' G `o v kp �, N �z" Vl (J j M G � o o -- d tea` ,a �a cr- i CO c3co N � � � i r✓1 � t�n r Ur% 7 a V' U ro k 'y ES C_u V_` � N a a U U a d a a `c U m m m a j �• � U LL Q a Oo a m E N m E n E a m F m m m N 1 N y N L h atl a a LC Q ¢ a U w v m rn^^ a s N m a a to E Page 80 of 8 U in m m m; o U Z W m ° � a � r m E a W y 10 Na E ad wuj o z 0 Sample Preservation Verification ENCO Cary Work Order: CD01083 ENCO Project: Rowan County Active Landfills Client: Golder Associates, Inc. (G0007) Project #: 19123756.100 Loggedin: 17-Jan-20 14:17 Logged By: Rachel Ann Yonis Preservation Check Performed By: "" Date/Time. I I 'zC CDO1083-01 Cant Type Pres (phi) I PH Checked / PH Adjusted Date/Time Reagent Used/Comments Requirement In Control Adjusted A 250mLP+HNO3 <2 Y)/ N I NA Y / NA CDO1083-02 Cont Type Pres (pH) Requirement pH Checked / In Control pH Adjusted Date/Time Reagent Used/Comments I Adjusted A 250mLP+HNO3 <2 Y .1 N/ NA I Y I N Y NA CDO1083-03 Cont Type Pres (PH) PH Checked/1 pH Adjusted DateMme Reagent Used/Comments Requirement In Control Adjusted A 250mLP+HNO3 1 2 Y I N I NA I Y/ N 1 NA CD01083-04 Cont Type Pres (PH) pH Checked I pH Adjusted DateCf'ime Reagent Used/Comments Requirement In Control Adjusted A 250mLP+HNO3 [F] <2 Y I N / NA Y 1. N / NA CDO1083-05 Cont Type Pres (pH) Requirement PH Checked / In Control PH Adjusted Date/Time Adjusted Reagent UsedlComments A 250mLP+HNO3 <2 Y I N I NA Y I N I NA C DO1083-06 Cont Type Pres (pH) pH Checked / pH Adjusted Date/Time Reagent Used/Comments Requirement Jn Control Adjusted A 250mLP+HNO3 <2 YIN I NA YIN :/ NA CDO1083-07 Cont Type Pres (PH) PH Checked / PH Adjusted DatelTime Reagent Used/Comments Requirement In Control Adjusted A 250mLP+HNO3 <2 Y I N/ NA I Y ti 7 NA CDO1083-08 Cont Type Pres (pH) Requirement PH Checked / in Control PH Adjusted Date/Time Adjusted Used/Comments A 250mLP+HNO3 <2 Y I N! NA Y I N / NA CDO1083-09 Cont Type Pres (PH) Requirement PH Checked / in Control PH Adjusted Dateffime Adjusted Reagent Used/Comments A 250mLP+HNO3 <2 Y I N/ NA Y I N/ NA C:\elmntlPrintlwko_PreservationCheck.rpt I Page 81 of 82 2 Sample Preservation Verification M ENCO Ca �`Y Work Order: CDO1083 Project: Rowan County Active Landfills Client: Golder Associates, Inc. (G0007) Project #: 19123756.100 Logged In: 17-Jan-20 14:17 Logged By: Rachel Ann Y nish 1 Preservation Check Performed By:7-TDate/Time: CDO1083-10 Cont Type Pres (pH) Requirement pH Checked 1 _..ln Control pH Adjusted DateMme Adjusted Reagent Used/Comments A 250mLP+HNO3 <2 Y/ N I NA I YIN V NA Rea ent Name ID 1 2 Rea ent Name ID 3 4 Rea ent Name ID 5 6 pH Strip ID'. PH Strips M1061 C:Ielmnt\Pri��vY�„_� I vomul1.,llG%,n.Ipt Page 82 of 82 12 GOLDER ASSOCIATES NC, INC. G O L D E R QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 1 of 4 Project Name: Rowan County Active Landfill Project Reference Number: 19123756.100 Sampling Event Date: January 14, 2019 Review Date: February 6, 2020 Report #: CC21741,CD00890,CD01083 Initials: DC Review: RPK 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 List (.500 Rules) NC C & D List (New Rules) X NC Appendix I NC Appendix I + Detects NC Appendix II NC Subtitle D Leachate List Other: 1.0 CHAIN OF CUSTODY (COC) REVIEW DC COC was properly signed by all parties. DC Correct project name and number are on the form. DC Sample receipt condition at laboratory was acceptable. DC Each sample and blank submitted for analysis appears in the report. 2.0 SAMPLE HOLDING TIMES DC Holding times for extraction and/or analysis were met for each analytical Method (see below for reference). GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 2 of 4 %0 GOLDER Review Criteria Method Anal tes Holding Time SW-846 Method 8260 and 8011 VOCs 14 days SW-846 Methods 8270, 8080, 8081, 8082, and 8151 SVOCs, PCBs, pesticides and herbicides 7 days for extraction, 40 days from extraction for analysis SW-846 Methods 6000 and 7000 Series Metals except mercury 6 months (no temperature requirements) SW-846 Method 7470 Mercury 28 days SW-846 Method 376.1 Sulfide 7 days SW-846 Method 9010 Cyanide 14 days EPA Method 300 Nitrate/Sulfate 48 hours/28 days EPA Method 405.1 BOD 48 hours EPA Method 410.4 COD 28 days EPA Method 365.4 Phosphorous 28 days 3.0 LABORATORY QUALITY CONTROL REVIEW DC Laboratory analyzed at least one internal blank for each method, where applicable. DC Laboratory blank is interference -free. DC Surrogate recoveries are provided for each analytical method, where applicable. DC Surrogate recoveries for each method are within the acceptable limits (i.e., at least 50% of the surrogates were within range). DC MS/MSD/LCS data results are provided for each analytical method. DC MS/MSD/LCS recoveries for each method are within the acceptable limits (i.e., at least 1 of the 3 were within range). y The 1,1-Dichloroethene spike recovery was outside acceptance limits for the 8260D MS and/or MSD. The QC batch was accepted based on acceptable LCS recovery. 4.0 ANALYTE LISTS/METHODS DC The proper number of constituents are present for each analyte list as identified above (including detects where applicable). DC Proper EPA SM 2540C-1997 analytical methods were used for analysis. 5.0 DATA REPORTING DC All analytical reporting associated with the event was performed by the contracted lab. DC Trip, field and/or equipment, and laboratory blank results have all been reported. All detects for blanks are listed below by constituent. All laboratory method blanks, if any, have been `flagged' with a `B' where detected in other samples as appropriate and a laboratory narrative was provided. If the sample was flagged by the laboratory and is GOLDER ASSOCIATES NC, INC. G O L D E R QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 3 of 4 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. ➢ Field Blank: • Barium @ 1.11 ug/L (J) -none • Methylene Chloride @ 0.68 ug/L (J) — none ➢ Trip Blank: • Methylene Chloride @ 0.50 ug/L (J) - none DC It is clear from the laboratory report that samples have or have not been diluted during analysis, and if the samples have been diluted, the result is reported as a multiple of the dilution (e.g., a sample diluted 10x resulting in an analytical detection of 1.0 should be reported as 10). Those that have been diluted are listed below with the dilution factor. ➢ Antimony and Thallium (2x) all samples DC The report provides the reporting limit for each constituent. DC The results were reported at or below their proper reporting limits (i.e., MDLs with SWSLs reported). Those that are not reported correctly are listed below (by constituent) with the proper reporting limit listed beside them. State if the reporting limit error is due to dilutions. DC No organic or organic constituents were reported above their respective NC 2L Drinking Water Standards/GWPS in wells, or field/equipment/trip blanks, or above applicable surface water standards in surface water points. NC 2L/GWPS/MCL/IMAC Exceedances ➢ Cobalt (NC 2L IMAC = 1 ug/L) • MWA @ 1.43 ug/L (J) • MW-20 @ 5.71 ug/L (J) • MW-28R @ 1.85 ug/L (J) ➢ Vanadium (NC 2L IMAC = 0.3 ug/L) • MW-9 @ 3.08 ug/L (J) • MWA 1 @ 2.17 ug/L (J) • MWA 3 @ 2.09 ug/L (J) • MW-25 @ 8.23 ug/L (J) • MW-23A @ 5.80 ug/L (J) ➢ Copper (SW Standard Chronic = 7 ug/L) (Acute = 7.39 @ SW-2, 4.59 @ SW-4) • SWA @ 2.78 ug/L (J) chronic only • SW-2 @ 9.52 ug/L (J) acute and chronic • SW-3 @ 5.02 ug/L (J) chronic only • SW-4 @ 9.34 ug/L (J) acute and chronic ➢ Lead (SW Standard — Chronic = 1.25 @ SW-2, 0.71 @ SW-4) • SW-2 @ 6.70 ug/L (J) • SW-4 @ 3.60 ug/L (J) DC No inorganic or organic constituents were detected in a well or surface water point at quantified concentrations outside of their historical range (more than 5X previous GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 4 of 4 concentrations or first-time detections). %0 GOLDER DC Other report issues/Communications with laboratory/etc.: The 1,2-Dichloroethane and Carbon tetrachloride associated continuing calibration verification standards exhibited high bias; since the results for 8003- MW11 and 8003-MW12 are non -detect, there is no impact. ➢ The Bromoform associated continuing calibration verification standard exhibited high bias; since the results for all the samples in worker orders CC21741 and CD00890, 8003-MW1, 8003-MW7, 8003-MW20, 8003-SW1 and 8003-SW3 are non - detect, there is no impact. Y The Chloroethane associated continuing calibration verification standard exhibited high bias; since the results for all the samples in work order CD01083, 8003-MW11, 8003-MW12, 8003-MW13, 8003-MW23, 8003-MW23A and 8003-MW28R are non -detect, there is no impact. 4 =sQP« ENCO Laboratories 9e0 Accnrate. Timely. Responsive. Innovative. 102-A Woodwinds Industrial Court Cary NC, 27511 Phone: 919.467.3090 FAX: 919.467.3515 Wednesday, January 29, 2020 Golder Associates, Inc. (G0007) Attn: Darren Cox 5B Oak Branch Drive Greensboro, NC 27407 RE: Laboratory Results for Project Number: 19123756.100, Project Name/Desc: Rowan County Active Landfills - Ind. Parameters ENCO Workorder(s): CC21368,CD00896 Dear Darren Cox, Enclosed is a copy of your laboratory report for test samples received by our laboratory between Tuesday, January 14, 2020 and Wednesday, January 15, 2020. 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, Meghan K Shea 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 3O (� �Eo www.encolabs.com PROJECT NARRATIVE Date: 29 January 2020 Client: Golder Associates, Inc. (G0007) Project: Rowan County Active Landfills - Ind. Parameters Lab ID: CC21368 Overview Environmental Conservation Laboratories, Inc. (ENCO) analyzed all submitted samples in accordance with the methods referenced in the laboratory report. Any particular difficulties encountered during sample handling by ENCO are discussed in the QC Remarks section below. Quality Control Samples The Chloride and Sulfate spike recovery was outside acceptance limits for the MS and/or MSD. The QC batch was accepted based on acceptable LCS recovery. The Bromoform associated continuing calibration verification standard exhibited high bias; since the results for all the samples in the report are non -detect, there is no impact. 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. Meghan Shea 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 30 (� �Eo www.encolabs.com SAMPLE SUMMARY/LABORATORY CHRONICLE Client ID: 8003-MW37 Lab ID: CC21368-01 Sampled: 01/13/20 13:40 Received: 01/14/20 12:45 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 02/10/20 01/15/20 13:05 01/16/20 12:22 EPA 310.2 NO PREP 01/27/20 01/23/20 09:33 01/23/20 13:22 EPA 6010D EPA 3005A 07/11/20 01/15/20 09:57 01/17/20 10:33 EPA 6020B EPA 3005A 07/11/20 01/15/20 10:06 01/15/20 20:14 EPA 7470A EPA 7470A 02/10/20 01/20/20 13:43 01/21/20 16:26 EPA 8260D EPA 5030B_MS 01/27/20 01/16/20 11:20 01/17/20 04:19 EPA 8260D EPA 5030B_MIS 01/27/20 01/16/20 13:20 01/16/20 15:25 SM 254OC-2011 NO PREP 01/20/20 01/20/20 16:33 01/20/20 16:33 Client ID: 8003-MW18R Lab ID: CC21368-02 Sampled: 01/13/20 14:50 Received: 01/14/20 12:45 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 02/10/20 01/15/20 13:05 01/16/20 12:39 EPA 6010D EPA 3005A 07/11/20 01/15/20 09:57 01/17/20 10:50 EPA 6020E EPA 3005A 07/11/20 01/15/20 10:06 01/15/20 20:19 EPA 7470A EPA 7470A 02/10/20 01/20/20 13:43 01/21/20 16:08 EPA 8260D EPA 5030B_MIS 01/27/20 01/16/20 11:20 01/17/20 04:51 EPA 8260D EPA 503013_MS 01/27/20 01/16/20 13:20 01/16/20 15:50 SM 2540C-2011 NO PREP 01/20/20 01/20/20 16:33 01/20/20 16:33 Client ID: 8003-MW18R Lab ID: CC21368-02RE1 Sampled: 01/13/20 14:50 Received: 01/14/20 12:45 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 310.2 NO PREP 01/27/20 01/23/20 09:33 01/23/20 14:17 EPA 8260D EPA 503013_MS 01/27/20 01/20/20 14:14 01/21/20 12:39 Client ID: 8003-MW19 Lab ID: CDO0896-01 Sampled: 01/14/20 11:20 Received: 01/15/20 13:24 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 02/11/20 01/17/20 12:33 01/18/20 06:26 EPA 310.2 NO PREP 01/28/20 01/23/20 09:33 01/23/20 13:36 EPA 6010D EPA 3005A 07/12/20 01/15/20 17:02 01/17/20 14:37 EPA 6020B EPA 3005A 07/12/20 01/15/20 16:26 01/22/20 17:26 EPA 7470A EPA 7470A 02/11/20 01/23/20 11:49 01/24/20 16:40 EPA 8260D EPA 503013_MS 01/28/20 01/16/20 11:20 01/17/20 11:35 EPA 8260D EPA 503013_MS 01/28/20 01/17/20 13:48 01/17/20 14:37 SM 254OC-2011 NO PREP 01/21/20 01/20/20 16:33 01/20/20 16:33 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in lull. I Page 3 Of 3O (� �Eo www.encolabs.com SAMPLE DETECTION SUMMARY Client ID: 8003-MW37 Lab ID: CC21368-01 Analvte Results Flag MDL Q Units Method Notes Barium - Total 22.4 1.10 10.0 ug/L EPA 6010D Chloride 5400 2200 5000 ug/L EPA 300.0 Manganese - Total 17.9 1.50 10.0 ug/L EPA 6010D Total Alkalinity as CaCO3 37000 14000 15000 ug/L EPA 310.2 Total Dissolved Solids 82000 50000 50000 ug/L SM 2540C-2011 Zinc - Total 6.97 J 4.40 10.0 ug/L EPA 6010D Client ID: 8003-MW18R Lab ID: CC21368-02 Analvte Results Flag MDL Q Units Method Notes 1,4-Dioxane 6.3 0.80 2.0 ug/L EPA 8260D Barium - Total 214 1.10 10.0 ug/L EPA 6010D Chloride 39000 D 8700 20000 ug/L EPA 300.0 Cobalt - Total 2.48 J 1.40 10.0 ug/L EPA 6010D Iron - Total 796 22.0 50.0 ug/L EPA 6010D Manganese - Total 1550 1.50 10.0 ug/L EPA 6010D Sulfate as SO4 210000 D 12000 20000 ug/L EPA 300.0 Thallium - Total 0.699 J 0.220 2.00 ug/L EPA 6020E Total Dissolved Solids 660000 50000 50000 ug/L SM 2540C-2011 Zinc - Total 4.68 J 4.40 10.0 ug/L EPA 6010D Client ID: 8003-MW18R Lab ID: CC21368-02RE3 Analvte Results Flag MDL PQL Units Method Notes Total Alkalinity as CaCO3 240000 D 28000 30000 ug/L EPA 310.2 Client ID: 8003-MW39 Lab ID: CDO0896-01 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dioxane 7.2 0.80 2.0 ug/L EPA 8260D Barium - Total 60.8 1.10 10.0 ug/L EPA 6010D Chloride 5300 2200 5000 ug/L EPA 300.0 Chromium - Total 1.42 J 1.40 10.0 ug/L EPA 6010D Iron - Total 1370 22.0 50.0 ug/L EPA 6010D Manganese - Total 200 1.50 10.0 ug/L EPA 6010D Sulfate as SO4 6300 2900 5000 ug/L EPA 300.0 Total Alkalinity as CaCO3 42000 14000 15000 ug/L EPA 310.2 Total Dissolved Solids 90000 50000 50000 ug/L SM 2540C-2011 Vanadium - Total 3.35 J 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 30 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW17 Lab Sample ID:CC21368-01 Received: 01/14/20 12:45 Matrix: Ground Water Sampled:01/13/20 13:40 Work Order: CC21368 Project: Rowan County Active Landfills - Ind. Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte ICAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]^ 0.17 U ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 04:19 REF 1,1,1-Trichloroethane [71-55-6]^ 0.12 U ug/L 1 0.12 1.0 OA16021 EPA 8260D O1/17/20 04:19 REF 1,1,2,2-Tetrachloroethane [79-34-5]^ 0.28 U ug/L 1 0.28 1.0 OA16021 EPA 8260D O1/17/20 04:19 REF 1,1,2-Trichloroethane [79-00-5]^ 0.14 U ug/L 1 0.14 1.0 OA16021 EPA 8260D O1/17/20 04:19 REF 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 OA16021 EPA 8260D O1/17/20 04:19 REF 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 OA16021 EPA 8260D O1/17/20 04:19 REF 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 OA16021 EPA 8260D O1/17/20 04:19 REF 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 OA16021 EPA 8260D O1/17/20 04:19 REF 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 OA16021 EPA 8260D O1/17/20 04:19 REF 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 OA16021 EPA 8260D O1/17/20 04:19 REF 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 OA16021 EPA 8260D O1/17/20 04:19 REF 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 OA16021 EPA 8260D O1/17/20 04:19 REF 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 OA16021 EPA 8260D O1/17/20 04:19 REF 2-Butanone [78-93-3]^ 1.3 U ug/L 1 1.3 5.0 OA16021 EPA 8260D O1/17/20 04:19 REF 2-Hexanone [591-78-6]^ 0.88 U ug/L 1 0.88 5.0 OA16021 EPA 8260D O1/17/20 04:19 REF 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 OA16021 EPA 8260D O1/17/20 04:19 REF Acetone [67-64-1]^ 10 U ug/L 1 10 20 OA16021 EPA 8260D O1/17/20 04:19 REF Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 OA16021 EPA 8260D O1/17/20 04:19 REF Benzene [71-43-2]^ 0.15 U ug/L 1 0.15 1.0 OA16021 EPA 8260D O1/17/20 04:19 REF Bromochloromethane [74-97-5]^ 0.48 U ug/L 1 0.48 1.0 OA16021 EPA 8260D O1/17/20 04:19 REF Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 04:19 REF Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 OA16021 EPA 8260D O1/17/20 04:19 REF QV-01 Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 OA16021 EPA 8260D O1/17/20 04:19 REF Carbon disulfide [75-15-O]^ 1.5 U ug/L 1 1.5 5.0 OA16021 EPA 8260D O1/17/20 04:19 REF Carbon tetrachloride [56-23-5]^ 0.17 U ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 04:19 REF Chlorobenzene [108-90-7]^ 0.17 U ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 04:19 REF Chloroethane [75-00-3]^ 0.23 U ug/L 1 0.23 1.0 OA16021 EPA 8260D O1/17/20 04:19 REF Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 OA16021 EPA 8260D O1/17/20 04:19 REF Chloromethane [74-87-3]^ 0.13 U ug/L 1 0.13 1.0 OA16021 EPA 8260D O1/17/20 04:19 REF cis- 1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 OA16021 EPA 8260D O1/17/20 04:19 REF cis- 1,3-Dichloropropene [10061-01-5]^ 0.20 U ug/L 1 0.20 1.0 OA16021 EPA 8260D O1/17/20 04:19 REF Dibromochloromethane [124-48-1]^ 0.17 U ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 04:19 REF Dibromomethane [74-95-3]^ 0.27 U ug/L 1 0.27 1.0 OA16021 EPA 8260D O1/17/20 04:19 REF Ethylbenzene [100-41-4]^ 0.13 U ug/L 1 0.13 1.0 OA16021 EPA 8260D O1/17/20 04:19 REF Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 OA16021 EPA 8260D O1/17/20 04:19 REF Methylene chloride [75-09-2]^ 0.23 U ug/L 1 0.23 1.0 OA16021 EPA 8260D O1/17/20 04:19 REF Styrene [100-42-5]^ 0.11 U ug/L 1 0.11 1.0 OA16021 EPA 8260D O1/17/20 04:19 REF Tetrachloroethene [127-18-4]^ 0.17 U ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 04:19 REF Tetrahydrofuran [109-99-9]^ 0.53 U ug/L 1 0.53 1.0 OA16021 EPA 8260D O1/17/20 04:19 REF Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 OA16021 EPA 8260D O1/17/20 04:19 REF trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 OA16021 EPA 8260D O1/17/20 04:19 REF trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 OA16021 EPA 8260D O1/17/20 04:19 REF trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 U ug/L 1 0.70 1.0 OA16021 EPA 8260D O1/17/20 04:19 REF Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 OA16021 EPA 8260D O1/17/20 04:19 REF Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 OA16021 EPA 8260D O1/17/20 04:19 REF Vinyl acetate [108-05-4]^ 0.95 U ug/L 1 0.95 5.0 OA16021 EPA 8260D O1/17/20 04:19 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 30 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW17 Lab Sample ID:CC21368-01 Received: 01/14/20 12:45 Matrix: Ground Water Sampled:01/13/20 13:40 Work Order: CC21368 Project: Rowan County Active Landfills - Ind. Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 OA16021 EPA 8260D 01/17/20 04:19 REF Xylenes(Total)[1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 OA16021 EPA 8260D 01/17/20 04:19 REF Surrogates Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes 4-Bromofluorobenzene 55 1 50.0 110 % 53-136 OA16021 EPA 8260D 01117120 04:19 REF Dlbromofluoromethane 51 1 50.0 102 % 67-129 OA16021 EPA 6260D 01117120 04:19 REF Toluene-d8 47 1 50.0 94 % 59-134 OA16021 EPA 6260D 01117120 04:19 REF Metals by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL POLL Batch Method Analyzed Ay Notes Mercury [7439-97-6]^ 0.150 U ug/L 1 0.150 0.200 OA20025 EPA 7470A 01/21/20 16:26 KAH Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL POLL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 OA15024 EPA 6020B 01/15/20 20:14 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OA15021 EPA 6010D 01/17/20 10:33 JDH Barium [7440-39-3]^ 22.4 ug/L 1 1.10 10.0 OA15021 EPA 6010D 01/17/20 10:33 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 OA15021 EPA 6010D 01/17/20 10:33 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OA15021 EPA 6010D 01/17/20 10:33 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 OA15021 EPA 6010D 01/17/20 10:33 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 OA15021 EPA 6010D 01/17/20 10:33 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 OA15021 EPA 6010D 01/17/20 10:33 JDH Iron [7439-89-6]^ 22.0 U ug/L 1 22.0 50.0 OA15021 EPA 6010D 01/17/20 10:33 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 OA15021 EPA 6010D 01/17/20 10:33 JDH Manganese [7439-96-5]^ 17.9 ug/L 1 1.50 10.0 OA15021 EPA 6010D 01/17/20 10:33 JDH Nickel[7440-02-O]^ 2.20 U ug/L 1 2.20 10.0 OA15021 EPA 6010D 01/17/20 10:33 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OA15021 EPA 6010D 01/17/20 10:33 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 OA15021 EPA 6010D 01/17/20 10:33 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 OA15024 EPA 6020B 01/15/20 20:14 RLF Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 OA15021 EPA 6010D 01/17/20 10:33 JDH Zinc[7440-66-6]^ 6.97 J ug/L 1 4.40 10.0 OA15021 EPA 6010D 01/17/20 10:33 JDH Classical Chemistry Parameters ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL POLL Batch Method Analyzed Ay Notes Chloride [16887-00-6]^ 5400 ug/L 1 2200 5000 OA15030 EPA 300.0 01/16/20 12:22 LJI Sulfate as SO4 [14808-79-8]^ 2900 U ug/L 1 2900 5000 OA15030 EPA 300.0 01/16/20 12:22 LJI Total Alkalinity as CaCO3 [471-34-1]^ 37000 ug/L 1 14000 15000 OA23011 EPA 310.2 01/23/20 13:22 AKF Total Dissolved Solids^ 82000 ug/L 1 50000 50000 OA20013 SM 2540C-2011 01/20/20 16:33 JOC FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 6 Of 3O (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW17 Lab Sample ID:CC21368-01 Received: 01/14/20 12:45 Matrix: Ground Water Sampled:01/13/20 13:40 Work Order: CC21368 Project: Rowan County Active Landfills - Ind. Sampled By: Erik Vasko Volatile Organic Compounds by GCMS SIM Isotope Dilution ^ - ENCO Orlando certified analyte [NC 424] Analyte fCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes 1,4-Dioxane [123-91-1]A 0.80 U ug/L 1 0.80 2.0 OA16037 EPA 8260D 01/16/20 15:25 KKW Surrogates Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes Toluene-d8 6.1 1 5.00 122 % 75-125 OA16037 EPA 6260D 0111612015:25 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 7 Of 30 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW18R Lab Sample ID:CC21368-02 Received: 01/14/20 12:45 Matrix: Ground Water Sampled:01/13/20 14:50 Work Order: CC21368 Project: Rowan County Active Landfills - Ind. Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte ICAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]^ 0.17 U ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 04:51 REF 1,1,1-Trichloroethane [71-55-6]^ 0.12 U ug/L 1 0.12 1.0 OA16021 EPA 8260D O1/17/20 04:51 REF 1,1,2,2-Tetrachloroethane [79-34-5]^ 0.28 U ug/L 1 0.28 1.0 OA16021 EPA 8260D O1/17/20 04:51 REF 1,1,2-Trichloroethane [79-00-5]^ 0.14 U ug/L 1 0.14 1.0 OA16021 EPA 8260D O1/17/20 04:51 REF 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 OA16021 EPA 8260D O1/17/20 04:51 REF 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 OA16021 EPA 8260D O1/17/20 04:51 REF 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 OA16021 EPA 8260D O1/17/20 04:51 REF 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 OA16021 EPA 8260D O1/17/20 04:51 REF 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 OA16021 EPA 8260D O1/17/20 04:51 REF 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 OA16021 EPA 8260D O1/17/20 04:51 REF 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 OA16021 EPA 8260D O1/17/20 04:51 REF 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 OA16021 EPA 8260D O1/17/20 04:51 REF 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 OA16021 EPA 8260D O1/17/20 04:51 REF 2-Butanone [78-93-3]^ 1.3 U ug/L 1 1.3 5.0 OA16021 EPA 8260D O1/17/20 04:51 REF 2-Hexanone [591-78-6]^ 0.88 U ug/L 1 0.88 5.0 OA16021 EPA 8260D O1/17/20 04:51 REF 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 OA16021 EPA 8260D O1/17/20 04:51 REF Acetone [67-64-1]^ 10 U ug/L 1 10 20 OA16021 EPA 8260D O1/17/20 04:51 REF Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 OA16021 EPA 8260D O1/17/20 04:51 REF Benzene [71-43-2]^ 0.15 U ug/L 1 0.15 1.0 OA16021 EPA 8260D O1/17/20 04:51 REF Bromochloromethane [74-97-5]^ 0.48 U ug/L 1 0.48 1.0 OA16021 EPA 8260D O1/17/20 04:51 REF Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 04:51 REF Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 OA16021 EPA 8260D O1/17/20 04:51 REF QV-01 Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 OA16021 EPA 8260D O1/17/20 04:51 REF Carbon disulfide [75-15-O]^ 1.5 U ug/L 1 1.5 5.0 OA16021 EPA 8260D O1/17/20 04:51 REF Carbon tetrachloride [56-23-5]^ 0.17 U ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 04:51 REF Chlorobenzene [108-90-7]^ 0.17 U ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 04:51 REF Chloroethane [75-00-3]^ 0.23 U ug/L 1 0.23 1.0 OA16021 EPA 8260D O1/17/20 04:51 REF Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 OA16021 EPA 8260D O1/17/20 04:51 REF Chloromethane [74-87-3]^ 0.13 U ug/L 1 0.13 1.0 OA16021 EPA 8260D O1/17/20 04:51 REF cis- 1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 OA16021 EPA 8260D O1/17/20 04:51 REF cis- 1,3-Dichloropropene [10061-01-5]^ 0.20 U ug/L 1 0.20 1.0 OA16021 EPA 8260D O1/17/20 04:51 REF Dibromochloromethane [124-48-1]^ 0.17 U ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 04:51 REF Dibromomethane [74-95-3]^ 0.27 U ug/L 1 0.27 1.0 OA16021 EPA 8260D O1/17/20 04:51 REF Ethylbenzene [100-41-4]^ 0.13 U ug/L 1 0.13 1.0 OA16021 EPA 8260D O1/17/20 04:51 REF Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 OA16021 EPA 8260D O1/17/20 04:51 REF Methylene chloride [75-09-2]^ 0.23 U ug/L 1 0.23 1.0 OA16021 EPA 8260D O1/17/20 04:51 REF Styrene [100-42-5]^ 0.11 U ug/L 1 0.11 1.0 OA16021 EPA 8260D O1/17/20 04:51 REF Tetrachloroethene [127-18-4]^ 0.17 U ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 04:51 REF Tetrahydrofuran [109-99-9]^ 0.53 U ug/L 1 0.53 1.0 OA20027 EPA 8260D O1/21/20 12:39 REF Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 OA16021 EPA 8260D O1/17/20 04:51 REF trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 OA16021 EPA 8260D O1/17/20 04:51 REF trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 OA16021 EPA 8260D O1/17/20 04:51 REF trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 U ug/L 1 0.70 1.0 OA16021 EPA 8260D O1/17/20 04:51 REF Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 OA16021 EPA 8260D O1/17/20 04:51 REF Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 OA16021 EPA 8260D O1/17/20 04:51 REF Vinyl acetate [108-05-4]^ 0.95 U ug/L 1 0.95 5.0 OA16021 EPA 8260D O1/17/20 04:51 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 8 Of 30 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW18R Lab Sample ID:CC21368-02 Received: 01/14/20 12:45 Matrix: Ground Water Sampled:01/13/20 14:50 Work Order: CC21368 Project: Rowan County Active Landfills - Ind. Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 OA16021 EPA 8260D 01/17/20 04:51 REF Xylenes(Total)[1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 OA16021 EPA 8260D 01/17/20 04:51 REF Surrogates Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes 4-Bromofluorobenzene 53 1 50.0 107 % 53-136 OA16021 EPA 8260D 01117120 04:51 REF Dlbromofluoromethane 52 1 50.0 104 % 67-129 OA16021 EPA 6260D 01117120 04:51 REF Toluene-d8 47 1 50.0 94 % 59-134 OA16021 EPA 6260D 01117120 04:51 REF Metals by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL POLL Batch Method Analyzed By Notes Mercury [7439-97-6]^ 0.150 U ug/L 1 0.150 0.200 OA20025 EPA 7470A 01/21/20 16:08 KAH Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL POLL Batch Method Analyzed By Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 OA15024 EPA 6020B 01/15/20 20:19 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OA15021 EPA 6010D 01/17/20 10:50 JDH Barium [7440-39-3]^ 214 ug/L 1 1.10 10.0 OA15021 EPA 6010D 01/17/20 10:50 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 OA15021 EPA 6010D 01/17/20 10:50 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OA15021 EPA 6010D 01/17/20 10:50 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 OA15021 EPA 6010D 01/17/20 10:50 JDH Cobalt[7440-48-4]^ 2.48 J ug/L 1 1.40 10.0 OA15021 EPA 6010D 01/17/20 10:50 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 OA15021 EPA 6010D 01/17/20 10:50 JDH Iron [7439-89-6]^ 796 ug/L 1 22.0 50.0 OA15021 EPA 6010D 01/17/20 10:50 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 OA15021 EPA 6010D 01/17/20 10:50 JDH Manganese [7439-96-5]^ 1550 ug/L 1 1.50 10.0 OA15021 EPA 6010D 01/17/20 10:50 JDH Nickel[7440-02-O]^ 2.20 U ug/L 1 2.20 10.0 OA15021 EPA 6010D 01/17/20 10:50 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OA15021 EPA 6010D 01/17/20 10:50 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 OA15021 EPA 6010D 01/17/20 10:50 JDH Thallium [7440-28-0]^ 0.699 J ug/L 2 0.220 2.00 OA15024 EPA 6020B 01/15/20 20:19 RLF Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 OA15021 EPA 6010D 01/17/20 10:50 JDH Zinc[7440-66-6]^ 4.68 J ug/L 1 4.40 10.0 OA15021 EPA 6010D 01/17/20 10:50 JDH Classical Chemistry Parameters ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL POLL Batch Method Analyzed By Notes Chloride [16887-00-6]^ 39000 D ug/L 4 8700 20000 OA15030 EPA 300.0 01/16/20 12:39 LJI Sulfate as SO4 [14808-79-8]^ 210000 D ug/L 4 12000 20000 OA15030 EPA 300.0 01/16/20 12:39 LJI Total Alkalinity as CaCO3 [471-34-1]^ 240000 D ug/L 2 28000 30000 OA23011 EPA 310.2 01/23/20 14:17 AKF Total Dissolved Solids^ 660000 ug/L 1 50000 50000 OA20013 SM 2540C-2011 01/20/20 16:33 JOC FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 9 Of 3O (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW18R Lab Sample ID:CC21368-02 Received: 01/14/20 12:45 Matrix: Ground Water Sampled:01/13/20 14:50 Work Order: CC21368 Project: Rowan County Active Landfills - Ind. Sampled By: Erik Vasko Volatile Organic Compounds by GCMS SIM Isotope Dilution ^ - ENCO Orlando certified analyte [NC 424] Analyte rCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes 1,4-Dioxane [123-91-1]A 6.3 ug/L 1 0.80 2.0 OA16037 EPA 8260D 01/16/20 15:50 KKW Surrogates Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes Toluene-d8 5.6 1 5.00 112 % 75-125 OA16037 EPA 6260D 0111612015:50 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 30 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW19 Lab Sample ID:CD00896-01 Received: 01/15/20 13:24 Matrix: Ground Water Sampled:01/14/20 11:20 Work Order: CD00896 Project: Rowan County Active Landfills - Ind. Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte ICAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]^ 0.17 U ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 11:35 REF 1,1,1-Trichloroethane [71-55-6]^ 0.12 U ug/L 1 0.12 1.0 OA16021 EPA 8260D O1/17/20 11:35 REF 1,1,2,2-Tetrachloroethane [79-34-5]^ 0.28 U ug/L 1 0.28 1.0 OA16021 EPA 8260D O1/17/20 11:35 REF 1,1,2-Trichloroethane [79-00-5]^ 0.14 U ug/L 1 0.14 1.0 OA16021 EPA 8260D O1/17/20 11:35 REF 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 OA16021 EPA 8260D O1/17/20 11:35 REF 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 OA16021 EPA 8260D O1/17/20 11:35 REF 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 OA16021 EPA 8260D O1/17/20 11:35 REF 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 OA16021 EPA 8260D O1/17/20 11:35 REF 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 OA16021 EPA 8260D O1/17/20 11:35 REF 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 OA16021 EPA 8260D O1/17/20 11:35 REF 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 OA16021 EPA 8260D O1/17/20 11:35 REF 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 OA16021 EPA 8260D O1/17/20 11:35 REF 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 OA16021 EPA 8260D O1/17/20 11:35 REF 2-Butanone [78-93-3]^ 1.3 U ug/L 1 1.3 5.0 OA16021 EPA 8260D O1/17/20 11:35 REF 2-Hexanone [591-78-6]^ 0.88 U ug/L 1 0.88 5.0 OA16021 EPA 8260D O1/17/20 11:35 REF 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 OA16021 EPA 8260D O1/17/20 11:35 REF Acetone [67-64-1]^ 10 U ug/L 1 10 20 OA16021 EPA 8260D O1/17/20 11:35 REF Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 OA16021 EPA 8260D O1/17/20 11:35 REF Benzene [71-43-2]^ 0.15 U ug/L 1 0.15 1.0 OA16021 EPA 8260D O1/17/20 11:35 REF Bromochloromethane [74-97-5]^ 0.48 U ug/L 1 0.48 1.0 OA16021 EPA 8260D O1/17/20 11:35 REF Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 11:35 REF Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 OA16021 EPA 8260D O1/17/20 11:35 REF QV-01 Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 OA16021 EPA 8260D O1/17/20 11:35 REF Carbon disulfide [75-15-O]^ 1.5 U ug/L 1 1.5 5.0 OA16021 EPA 8260D O1/17/20 11:35 REF Carbon tetrachloride [56-23-5]^ 0.17 U ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 11:35 REF Chlorobenzene [108-90-7]^ 0.17 U ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 11:35 REF Chloroethane [75-00-3]^ 0.23 U ug/L 1 0.23 1.0 OA16021 EPA 8260D O1/17/20 11:35 REF Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 OA16021 EPA 8260D O1/17/20 11:35 REF Chloromethane [74-87-3]^ 0.13 U ug/L 1 0.13 1.0 OA16021 EPA 8260D O1/17/20 11:35 REF cis- 1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 OA16021 EPA 8260D O1/17/20 11:35 REF cis- 1,3-Dichloropropene [10061-01-5]^ 0.20 U ug/L 1 0.20 1.0 OA16021 EPA 8260D O1/17/20 11:35 REF Dibromochloromethane [124-48-1]^ 0.17 U ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 11:35 REF Dibromomethane [74-95-3]^ 0.27 U ug/L 1 0.27 1.0 OA16021 EPA 8260D O1/17/20 11:35 REF Ethylbenzene [100-41-4]^ 0.13 U ug/L 1 0.13 1.0 OA16021 EPA 8260D O1/17/20 11:35 REF Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 OA16021 EPA 8260D O1/17/20 11:35 REF Methylene chloride [75-09-2]^ 0.23 U ug/L 1 0.23 1.0 OA16021 EPA 8260D O1/17/20 11:35 REF Styrene [100-42-5]^ 0.11 U ug/L 1 0.11 1.0 OA16021 EPA 8260D O1/17/20 11:35 REF Tetrachloroethene [127-18-4]^ 0.17 U ug/L 1 0.17 1.0 OA16021 EPA 8260D O1/17/20 11:35 REF Tetrahydrofuran [109-99-9]^ 0.53 U ug/L 1 0.53 1.0 OA16021 EPA 8260D O1/17/20 11:35 REF Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 OA16021 EPA 8260D O1/17/20 11:35 REF trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 OA16021 EPA 8260D O1/17/20 11:35 REF trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 OA16021 EPA 8260D O1/17/20 11:35 REF trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 U ug/L 1 0.70 1.0 OA16021 EPA 8260D O1/17/20 11:35 REF Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 OA16021 EPA 8260D O1/17/20 11:35 REF Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 OA16021 EPA 8260D O1/17/20 11:35 REF Vinyl acetate [108-05-4]^ 0.95 U ug/L 1 0.95 5.0 OA16021 EPA 8260D O1/17/20 11:35 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 30 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW19 Lab Sample ID:CDO0896-01 Received: 01/15/20 13:24 Matrix: Ground Water Sampled:01/14/20 11:20 Work Order: CDO0896 Project: Rowan County Active Landfills - Ind. Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 OA16021 EPA 8260D 01/17/20 11:35 REF Xylenes(Total)[1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 OA16021 EPA 8260D 01/17/20 11:35 REF Surrogates Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes 4-Bromofluorobenzene 54 1 50.0 108 % 53-136 OA16021 EPA 8260D 01117120 11:35 REF Dlbromofluoromethane 54 1 50.0 108 % 67-129 OA16021 EPA 6260D 01117120 11:35 REF Toluene-d8 47 1 50.0 95 % 59-134 OA16021 EPA 8260D 01117120 1135 REF Metals by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL POLL Batch Method Analyzed Ay Notes Mercury [7439-97-6]^ 0.150 U ug/L 1 0.150 0.200 OA23030 EPA 7470A 01/24/20 16:40 KAH Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL POLL Batch Method Analyzed By Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 OA15049 EPA 6020B 01/22/20 17:26 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OA15052 EPA 6010D 01/17/20 14:37 JDH Barium [7440-39-3]^ 60.8 ug/L 1 1.10 10.0 OA15052 EPA 6010D 01/17/20 14:37 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 OA15052 EPA 6010D 01/17/20 14:37 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OA15052 EPA 6010D 01/17/20 14:37 JDH Chromium [7440-47-3]^ 1.42 J ug/L 1 1.40 10.0 OA15052 EPA 6010D 01/17/20 14:37 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 OA15052 EPA 6010D 01/17/20 14:37 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 OA15052 EPA 6010D 01/17/20 14:37 JDH Iron [7439-89-6]^ 1370 ug/L 1 22.0 50.0 OA15052 EPA 6010D 01/17/20 14:37 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 OA15052 EPA 6010D 01/17/20 14:37 JDH Manganese [7439-96-5]^ 200 ug/L 1 1.50 10.0 OA15052 EPA 6010D 01/17/20 14:37 JDH Nickel[7440-02-O]^ 2.20 U ug/L 1 2.20 10.0 OA15052 EPA 6010D 01/17/20 14:37 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OA15052 EPA 6010D 01/17/20 14:37 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 OA15052 EPA 6010D 01/17/20 14:37 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 OA15049 EPA 6020B 01/22/20 17:26 RLF Vanadium [7440-62-2]^ 3.35 J ug/L 1 1.40 10.0 OA15052 EPA 6010D 01/17/20 14:37 JDH Zinc[7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 OA15052 EPA 6010D 01/17/20 14:37 JDH Classical Chemistry Parameters ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL POLL Batch Method Analyzed By Notes Chloride [16887-00-6]^ 5300 ug/L 1 2200 5000 OA17026 EPA 300.0 01/18/20 06:26 LJI Sulfate as SO4 [14808-79-8]^ 6300 ug/L 1 2900 5000 OA17026 EPA 300.0 01/18/20 06:26 LJI Total Alkalinity as CaCO3 [471-34-1]^ 42000 ug/L 1 14000 15000 OA23011 EPA 310.2 01/23/20 13:36 AKF Total Dissolved Solids^ 90000 ug/L 1 50000 50000 OA20013 SM 2540C-2011 01/20/20 16:33 JOC FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 12 of 3O (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW19 Lab Sample ID:CDO0896-01 Received: 01/15/20 13:24 Matrix: Ground Water Sampled:01/14/20 11:20 Work Order: CDO0896 Project: Rowan County Active Landfills - Ind. Sampled By: Erik Vasko Volatile Organic Compounds by GCMS SIM Isotope Dilution ^ - ENCO Orlando certified analyte [NC 424] Analyte rCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes 1,4-Dioxane [123-91-1]A 7.2 ug/L 1 0.80 2.0 OA17041 EPA 8260D 01/17/20 14:37 KKW Surrogates Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes Toluene-d8 5.5 1 5.00 110 % 75-125 OA17041 EPA 6260D 011171201427 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 13 of 30 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch OA16O21 -EPA 5030E MS Blank (OA16021-BLK1) Prepared: O1/16/2020 13:52 Analyzed: 01/17/2020 02:46 Analvte Result Flaq POL Units 1,1,1,2-Tetrachloroethane 0.17 U 1.0 ug/L 1,1,1-Trichloroethane 0.12 U 1.0 ug/L 1,1,2,2-Tetrachloroethane 0.28 U 1.0 ug/L 1,1,2-Trichloroethane 0.14 U 1.0 ug/L 1,1-Dichloroethane 0.13 U 1.0 ug/L 1,1-Dichloroethene 0.21 U 1.0 ug/L 1,2,3-Trichloropropane 0.23 U 1.0 ug/L 1,2-Dibromo-3-chloropropane 0.48 U 1.0 ug/L 1,2-Dibromoethane 0.66 U 1.0 ug/L 1,2-Dichlorobenzene 0.19 U 1.0 ug/L 1,2-Dichloroethane 0.21 U 1.0 ug/L 1,2-Dichloropropane 0.10 U 1.0 ug/L 1,4-Dichlorobenzene 0.19 U 1.0 ug/L 2-Butanone 1.3 U 5.0 ug/L 2-Hexanone 0.88 U 5.0 ug/L 4-Methyl-2-pentanone 1.1 U 5.0 ug/L Acetone 10 U 20 ug/L Acrylonitrile 3.5 U 10 ug/L Benzene 0.15 U 1.0 ug/L Bromochloromethane 0.48 U 1.0 ug/L Bromodichloromethane 0.17 U 1.0 ug/L Bromoform 0.22 U 1.0 ug/L Bromomethane 0.14 U 1.0 ug/L Carbon disulfide 1.5 U 5.0 ug/L Carbon tetrachloride 0.17 U 1.0 ug/L Chlorobenzene 0.17 U 1.0 ug/L Chloroethane 0.23 U 1.0 ug/L Chloroform 0.18 U 1.0 ug/L Chloromethane 0.13 U 1.0 ug/L cis- 1,2-Dichloroethene 0.15 U 1.0 ug/L cis- 1,3-Dichloropropene 0.20 U 1.0 ug/L Dibromochloromethane 0.17 U 1.0 ug/L Dibromomethane 0.27 U 1.0 ug/L Ethylbenzene 0.13 U 1.0 ug/L Iodomethane 1.7 U 5.0 ug/L Methylene chloride 0.23 U 1.0 ug/L Styrene 0.11 U 1.0 ug/L Tetrachloroethene 0.17 U 1.0 ug/L Tetrahydrofuran 0.53 U 1.0 ug/L Toluene 0.14 U 1.0 ug/L trans-1,2-Dichloroethene 0.21 U 1.0 ug/L trans-1,3-Dichloropropene 0.15 U 1.0 ug/L 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 Level Result %REC Limits RPD RPD Limit Notes 4-Bromofluorobenzene 54 ug/L 50.0 107 53-136 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 14 Of 30 QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch OA16O21 - EPA 5030E MS - Continued (� �Eo www.encolabs.com Blank (OA16021-BLK1) Continued Prepared: O1/16/2020 13:52 Analyzed: 01/17/2020 02:46 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Dibromofluoromethane 50 u91L 50.0 101 67-129 Toluene-& 49 u91L 50.0 96 59-134 LCS (OA16021-BSI) Prepared: 01/16/2020 13:52 Analyzed: 01/17/2020 00:41 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 16 1.0 ug/L 20.0 81 75-133 Benzene 21 1.0 ug/L 20.0 103 80-134 Chlorobenzene 20 1.0 ug/L 20.0 99 80-120 Toluene 19 1.0 ug/L 20.0 96 71-120 Trichloroethene 21 1.0 ug/L 20.0 104 74-120 Matrix Spike (OA16021-MS1) Prepared: 01/16/2020 13:52 Analyzed: 01/17/2020 01:13 Source: CD00803-10 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 16 1.0 ug/L 20.0 0.21 U 82 75-133 Benzene 21 1.0 ug/L 20.0 0.15 U 107 80-134 Chlorobenzene 22 1.0 ug/L 20.0 0.17 U 108 80-120 Toluene 21 1.0 ug/L 20.0 0.14 U 105 71-120 Trichloroethene 22 1.0 ug/L 20.0 0.15 U 109 74-120 Matrix Spike Dup (OA16021-MSDI) Prepared: 01/16/2020 13:52 Analyzed: 01/17/2020 01:44 Source: CD00803-10 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 16 1.0 ug/L 20.0 0.21 U 78 75-133 6 20 Benzene 20 1.0 ug/L 20.0 0.15 U 102 80-134 4 17 Chlorobenzene 20 1.0 ug/L 20.0 0.17 U 102 80-120 5 16 Toluene 20 1.0 ug/L 20.0 0.14 U 99 71-120 6 17 Trichloroethene 21 1.0 ug/L 20.0 0.15 U 104 74-120 5 22 Batch OA2OO27 - EPA 5O3OB MS Blank (OA20027-BLK3) Prepared: O1/20/2020 14:14 Analyzed: 01/21/2020 04:15 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Tetrahydrofuran 0.53 U 1.0 ug/L Metals by EPA 6000/7000 Series Methods - Quality Control Batch OA2OO25 - EPA 747OA Blank (OA20025-BLK3) Prepared: O1/20/2020 13:43 Analyzed: 01/21/2020 16:04 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 0.150 U 0.200 ug/L FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 15 Of 30 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals by EPA 6000/7000 Series Methods - Quality Control Batch OA2OO25 - EPA 747OA - Continued LCS (OA20025-BSI) Prepared: 01/20/2020 13:43 Analyzed: 01/21/2020 16:06 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 5.00 0.200 ug/L 5.00 100 80-120 Matrix Spike (OA20025-MS1) Prepared: 01/20/2020 13:43 Analyzed: 01/21/2020 16:11 Source: CC21368-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 4.89 0.200 ug/L 5.00 0.150 U 98 75-125 Matrix Spike Dup (OA20025-MSD1) Prepared: 01/20/2020 13:43 Analyzed: 01/21/2020 16:13 Source: CC21368-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 4.83 0.200 ug/L 5.00 0.150 U 97 75-125 1 25 Post Spike (OA20025-PS1) Prepared: 01/20/2020 13:43 Analyzed: 01/21/2020 16:15 Source: CC21368-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 5.34 0.200 ug/L 5.00-0.0530 107 75-125 Batch OA23O3O - EPA 747OA Blank (OA23030-BLK3) Prepared: 01/23/2020 11:49 Analyzed: 01/24/2020 15:40 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 (OA23030-BLK2) Prepared: 01/23/2020 11:49 Analyzed: 01/24/2020 15:42 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 (OA23030-BSI) Prepared: 01/23/2020 11:49 Analyzed: 01/24/2020 15:45 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 4.91 0.200 ug/L 5.00 98 80-120 Matrix Spike (OA23030-MS1) Prepared: 01/23/2020 11:49 Analyzed: 01/24/2020 15:50 Source: CD00151-04 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 0.150 U 106 75-125 Matrix Spike Dup (OA23030-MSDi) Prepared: 01/23/2020 11:49 Analyzed: 01/24/2020 15:56 Source: CD00ISI-04 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 5.34 0.200 ug/L 5.00 0.150 U 107 75-125 1 25 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 16 Of 3O (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals by EPA 6000/7000 Series Methods - Quality Control Batch OA23O3O - EPA 747OA - Continued Post Spike (OA23030-PS3) Prepared: O1/23/2020 11:49 Analyzed: 01/24/2020 15:59 Source: CD00151-04 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 5.93 0.200 ug/L 5.00 0.0110 118 75-125 Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch OA15O21 - EPA 3OO5A Blank (OA35021-BLK1) Prepared: O1/15/2020 09:57 Analyzed: 01/17/2020 10:30 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 7.60 U 10.0 ug/L Barium 1.10 U 10.0 ug/L Beryllium 0.160 U 1.00 ug/L Cadmium 0.360 U 1.00 ug/L Chromium 1.40 U 10.0 ug/L Cobalt 1.40 U 10.0 ug/L Copper 1.60 U 10.0 ug/L Iron 22.0 U 50.0 ug/L Lead 3.10 U 10.0 ug/L Manganese 1.50 U 10.0 ug/L Nickel 2.20 U 10.0 ug/L Selenium 6.20 U 10.0 ug/L Silver 1.90 U 10.0 ug/L Vanadium 1.40 U 10.0 ug/L Zinc 4.40 U 10.0 ug/L LCS (OA15021-BSI) Prepared: 01/15/2020 09:57 Analyzed: 01/17/2020 10:37 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 193 10.0 ug/L 200 96 80-120 Barium 196 10.0 ug/L 200 98 80-120 Beryllium 19.3 1.00 ug/L 20.0 97 80-120 Cadmium 19.5 1.00 ug/L 20.0 97 80-120 Chromium 199 10.0 ug/L 200 99 80-120 Cobalt 197 10.0 ug/L 200 99 80-120 Copper 197 10.0 ug/L 200 99 80-120 Iron 986 50.0 ug/L 1000 99 80-120 Lead 194 10.0 ug/L 200 97 80-120 Manganese 199 10.0 ug/L 200 100 80-120 Nickel 199 10.0 ug/L 200 99 80-120 Selenium 201 10.0 ug/L 200 100 80-120 Silver 204 10.0 ug/L 200 102 80-120 Vanadium 200 10.0 ug/L 200 100 80-120 Zinc 197 10.0 ug/L 200 99 80-120 Matrix Spike (OA15021-MS1) Prepared: 01/15/2020 09:57 Analyzed: 01/17/2020 10:40 Source: CC21368-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 191 10.0 ug/L 200 7.60 U 96 75-125 Barium 229 10.0 ug/L 200 22.4 103 75-125 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 17 Of 30 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch OA15O21 - EPA 3OO5A - Continued Matrix Spike (OA15021-MS3) Continued Prepared: 01/15/2020 09:57 Analyzed: 01/17/2020 10:40 Source: CC21368-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Beryllium 19.7 1.00 ug/L 20.0 0.160 U 99 75-125 Cadmium 20.4 1.00 ug/L 20.0 0.360 U 102 75-125 Chromium 196 10.0 ug/L 200 1.40 U 98 75-125 Cobalt 202 10.0 ug/L 200 1.40 U 101 75-125 Copper 192 10.0 ug/L 200 1.60 U 96 75-125 Iron 1050 50.0 ug/L 1000 22.0 U 105 75-125 Lead 198 10.0 ug/L 200 3.10 U 99 75-125 Manganese 214 10.0 ug/L 200 17.9 98 75-125 Nickel 207 10.0 ug/L 200 2.20 U 104 75-125 Selenium 210 10.0 ug/L 200 6.20 U 105 75-125 Silver 197 10.0 ug/L 200 1.90 U 98 75-125 Vanadium 197 10.0 ug/L 200 1.40 U 98 75-125 Zinc 211 10.0 ug/L 200 6.97 102 75-125 Matrix Spike Dup (OA35021-MSD1) Prepared: 01/15/2020 09:57 Analyzed: 01/17/2020 10:42 Source: CC21368-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 208 10.0 ug/L 200 7.60 U 104 75-125 9 20 Barium 239 10.0 ug/L 200 22.4 109 75-125 5 20 Beryllium 20.5 1.00 ug/L 20.0 0.160 U 103 75-125 4 20 Cadmium 21.1 1.00 ug/L 20.0 0.360 U 106 75-125 4 20 Chromium 204 10.0 ug/L 200 1.40 U 102 75-125 4 20 Cobalt 210 10.0 ug/L 200 1.40 U 105 75-125 4 20 Copper 199 10.0 ug/L 200 1.60 U 100 75-125 4 20 Iron 1120 50.0 ug/L 1000 22.0 U 112 75-125 6 20 Lead 200 10.0 ug/L 200 3.10 U 100 75-125 1 20 Manganese 222 10.0 ug/L 200 17.9 102 75-125 4 20 Nickel 217 10.0 ug/L 200 2.20 U 109 75-125 5 20 Selenium 212 10.0 ug/L 200 6.20 U 106 75-125 1 20 Silver 204 10.0 ug/L 200 1.90 U 102 75-125 3 20 Vanadium 205 10.0 ug/L 200 1.40 U 102 75-125 4 20 Zinc 221 10.0 ug/L 200 6.97 107 75-125 5 20 Post Spike (OA35021-PS3) Prepared: 01/15/2020 09:57 Analyzed: 01/17/2020 10:45 Source: CC21368-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 0.200 0.0100 mg/L 0.200 -0.00328 100 80-120 Barium 0.232 0.0100 mg/L 0.200 0.0224 105 80-120 Beryllium 0.0205 0.00100 mg/L 0.0200 -9.12E-5 102 80-120 Cadmium 0.0208 0.00100 mg/L 0.0200 3.05E-6 104 80-120 Chromium 0.203 0.0100 mg/L 0.200 8.97E-5 102 80-120 Cobalt 0.206 0.0100 mg/L 0.200 0.000275 103 80-120 Copper 0.198 0.0100 mg/L 0.200 0.00125 99 80-120 Iron 1.08 0.0500 mg/L 1.00 0.0126 106 80-120 Lead 0.201 0.0100 mg/L 0.200 -0.000249 101 80-120 Manganese 0.220 0.0100 mg/L 0.200 0.0179 101 80-120 Nickel 0.212 0.0100 mg/L 0.200 0.00120 105 80-120 Selenium 0.208 0.0100 mg/L 0.200 0.000749 103 80-120 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 18 Of 30 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch OA15O21 - EPA 3OO5A - Continued Post Spike (OA35021-PS3) Continued Prepared: O1/15/2020 09:57 Analyzed: 01/17/2020 10:45 Source: CC21368-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Silver 0.196 0.0100 mg/L 0.200-0.000825 98 80-120 Vanadium 0.203 0.0100 mg/L 0.200 0.000436 101 80-120 Zinc 0.217 0.0100 mg/L 0.200 0.00697 105 80-120 Batch OA15O24 - EPA 3OO5A Blank (OA35024-BLK1) Prepared: O1/15/2020 10:06 Analyzed: 01/15/2020 19:27 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 0.370 U 1.00 ug/L Thallium 0.110 U 1.00 ug/L LCS (OA15024-BSI) Prepared: O1/15/2020 10:06 Analyzed: 01/15/2020 19:32 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 22.4 1.00 ug/L 20.0 112 80-120 Thallium 21.2 1.00 ug/L 20.0 106 80-120 Matrix Spike (OA15024-MS3) Prepared: O1/15/2020 10:06 Analyzed: 01/15/2020 19:36 Source: CD00SOS-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 46.2 2.00 ug/L 40.0 0.740 U 115 75-125 Thallium 39.5 2.00 ug/L 40.0 0.220 U 99 75-125 Matrix Spike Dup (OA15024-MSDS) Prepared: 01/15/2020 10:06 Analyzed: 01/15/2020 19:41 Source: CD00805-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 45.6 2.00 ug/L 40.0 0.740 U 114 75-125 1 20 Thallium 39.7 2.00 ug/L 40.0 0.220 U 99 75-125 0.5 20 Post Spike (OA15024-PSI) Prepared: 01/15/2020 10:06 Analyzed: 01/15/2020 20:05 Source: CD00805-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 22.8 1.00 ug/L 20.0 0.0509 114 75-125 Thallium 19.6 1.00 ug/L 20.0 0.0756 98 75-125 Batch OA15O49 - EPA 3OO5A Blank (OA35049-BLK3) Prepared: O1/15/2020 16:26 Analyzed: 01/22/2020 15:17 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 (OA15049-BSI) Prepared: O1/15/2020 16:26 Analyzed: 01/22/2020 15:21 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 19 Of 30 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch OA15O49 - EPA 3OO5A - Continued LCS (OA15049-BSI) Continued Prepared: 01/15/2020 16:26 Analyzed: 01/22/2020 15:21 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 21.7 1.00 ug/L 20.0 108 80-120 Thallium 21.7 1.00 ug/L 20.0 109 80-120 Matrix Spike (OA15049-MS3) Prepared: 01/15/2020 16:26 Analyzed: 01/22/2020 15:25 Source: CD00896-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 43.8 2.00 ug/L 40.0 0.740 U 110 75-125 Thallium 43.2 2.00 ug/L 40.0 0.220 U 108 75-125 Matrix Spike Dup (OA35049-MSD1) Prepared: 01/15/2020 16:26 Analyzed: 01/22/2020 15:30 Source: CD00896-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 42.2 2.00 ug/L 40.0 0.740 U 105 75-125 4 20 Thallium 41.9 2.00 ug/L 40.0 0.220 U 105 75-125 3 20 Post Spike (OA15049-PS1) Prepared: 01/15/2020 16:26 Analyzed: 01/22/2020 15:34 Source: CD00896-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 22.0 1.00 ug/L 20.0 0.0126 110 75-125 Thallium 21.6 1.00 ug/L 20.0 0.0406 108 75-125 Batch OA15O52 - EPA 3OO5A Blank (OA35052-BLK3) Prepared: 01/15/2020 17:02 Analyzed: 01/17/2020 13:18 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 7.60 U 10.0 ug/L Barium 1.10 U 10.0 ug/L Beryllium 0.160 U 1.00 ug/L Cadmium 0.360 U 1.00 ug/L Chromium 1.40 U 10.0 ug/L Cobalt 1.40 U 10.0 ug/L Copper 1.60 U 10.0 ug/L Iron 22.0 U 50.0 ug/L Lead 3.10 U 10.0 ug/L Manganese 1.50 U 10.0 ug/L Nickel 2.20 U 10.0 ug/L Selenium 6.20 U 10.0 ug/L Silver 1.90 U 10.0 ug/L Vanadium 1.40 U 10.0 ug/L Zinc 4.40 U 10.0 ug/L LCS (OA15052-BSI) Prepared: 01/15/2020 17:02 Analyzed: 01/17/2020 13:24 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 189 10.0 ug/L 200 94 80-120 Barium 196 10.0 ug/L 200 98 80-120 Beryllium 19.2 1.00 ug/L 20.0 96 80-120 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 20 of 30 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch OA15052 - EPA 3005A - Continued LCS (OA15052-BSI) Continued Prepared: 01/15/2020 17:02 Analyzed: 01/17/2020 13:24 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Cadmium 19.2 1.00 ug/L 20.0 96 80-120 Chromium 198 10.0 ug/L 200 99 80-120 Cobalt 194 10.0 ug/L 200 97 80-120 Copper 198 10.0 ug/L 200 99 80-120 Iron 977 50.0 ug/L 1000 98 80-120 Lead 187 10.0 ug/L 200 93 80-120 Manganese 199 10.0 ug/L 200 99 80-120 Nickel 198 10.0 ug/L 200 99 80-120 Selenium 187 10.0 ug/L 200 94 80-120 Silver 206 10.0 ug/L 200 103 80-120 Vanadium 201 10.0 ug/L 200 101 80-120 Zinc 194 10.0 ug/L 200 97 80-120 Matrix Spike (OA15052-MS1) Prepared: 01/15/2020 17:02 Analyzed: 01/17/2020 13:27 Source: CDO0890-07 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 183 10.0 ug/L 200 7.60 U 92 75-125 Barium 251 10.0 ug/L 200 55.2 98 75-125 Beryllium 19.7 1.00 ug/L 20.0 0.196 97 75-125 Cadmium 19.1 1.00 ug/L 20.0 0.360 U 96 75-125 Chromium 199 10.0 ug/L 200 1.40 U 100 75-125 Cobalt 195 10.0 ug/L 200 1.40 U 97 75-125 Copper 201 10.0 ug/L 200 1.60 U 100 75-125 Iron 1030 50.0 ug/L 1000 31.0 100 75-125 Lead 187 10.0 ug/L 200 3.10 U 93 75-125 Manganese 205 10.0 ug/L 200 5.70 100 75-125 Nickel 197 10.0 ug/L 200 2.20 U 99 75-125 Selenium 191 10.0 ug/L 200 6.20 U 95 75-125 Silver 207 10.0 ug/L 200 1.90 U 103 75-125 Vanadium 202 10.0 ug/L 200 1.40 U 101 75-125 Zinc 199 10.0 ug/L 200 7.60 96 75-125 Matrix Spike Dup (OA15052-MSD1) Prepared: 01/15/2020 17:02 Analyzed: 01/17/2020 13:29 Source: CDO0890-07 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 3 20 Barium 255 10.0 ug/L 200 55.2 100 75-125 2 20 Beryllium 20.7 1.00 ug/L 20.0 0.196 102 75-125 5 20 Cadmium 19.5 1.00 ug/L 20.0 0.360 U 97 75-125 2 20 Chromium 202 10.0 ug/L 200 1.40 U 101 75-125 1 20 Cobalt 196 10.0 ug/L 200 1.40 U 98 75-125 0.5 20 Copper 203 10.0 ug/L 200 1.60 U 102 75-125 1 20 Iron 1190 50.0 ug/L 1000 31.0 116 75-125 15 20 Lead 186 10.0 ug/L 200 3.10 U 93 75-125 0.7 20 Manganese 210 10.0 ug/L 200 5.70 102 75-125 2 20 Nickel 199 10.0 ug/L 200 2.20 U 100 75-125 1 20 Selenium 187 10.0 ug/L 200 6.20 U 93 75-125 2 20 Silver 214 10.0 ug/L 200 1.90 U 107 75-125 3 20 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 21 of 30 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch OA15052 - EPA 3005A - Continued Matrix Spike Dup (OA15052-MSDS) Continued Prepared: 01/15/2020 17:02 Analyzed: 01/17/2020 13:29 Source: CDO0890-07 Spike Source O/oREC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Vanadium 205 10.0 ug/L 200 1.40 U 103 75-125 2 20 Zinc 201 10.0 ug/L 200 7.60 97 75-125 1 20 Post Spike (OA15052-PSI) Prepared: 01/15/2020 17:02 Analyzed: 01/17/2020 13:32 Source: CDO0890-07 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 0.196 0.0100 mg/L 0.200 -0.00237 98 80-120 Barium 0.253 0.0100 mg/L 0.200 0.0552 99 80-120 Beryllium 0.0200 0.00100 mg/L 0.0200 0.000196 99 80-120 Cadmium 0.0197 0.00100 mg/L 0.0200 -1.01E-5 98 80-120 Chromium 0.204 0.0100 mg/L 0.200 0.000426 102 80-120 Cobalt 0.202 0.0100 mg/L 0.200 0.000324 101 80-120 Copper 0.208 0.0100 mg/L 0.200 0.000644 104 80-120 Iron 1.03 0.0500 mg/L 1.00 0.0310 100 80-120 Lead 0.198 0.0100 mg/L 0.200 -0.000123 99 80-120 Manganese 0.210 0.0100 mg/L 0.200 0.00570 102 80-120 Nickel 0.203 0.0100 mg/L 0.200 0.00146 101 80-120 Selenium 0.201 0.0100 mg/L 0.200 -0.0106 100 80-120 Silver 0.204 0.0100 mg/L 0.200 0.000248 102 80-120 Vanadium 0.207 0.0100 mg/L 0.200 0.000791 103 80-120 Zinc 0.205 0.0100 mg/L 0.200 0.00760 98 80-120 Classical Chemistry Parameters - Quality Control Batch OA15030 - NO PREP Blank (OA15030-BLK3) Prepared: 01/15/2020 13:05 Analyzed: 01/16/2020 09:43 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 2200 U 5000 ug/L Sulfate as SO4 2900 U 5000 ug/L LCS (OA15030-BSI) Prepared: 01/15/2020 13:05 Analyzed: 01/16/2020 10:00 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result O/oREC Limits RPD Limit Notes Chloride 49000 5000 ug/L 50000 97 90-110 Sulfate as SO4 49000 5000 ug/L 50000 98 90-110 Matrix Spike (OA15030-MSI) Prepared: 01/15/2020 13:05 Analyzed: 01/16/2020 11:11 Source: CDO0301-04 Spike Source O/oREC RPD Analvte Result Flaq POL Units Level Result O/oREC Limits RPD Limit Notes Chloride 110000 E 5000 ug/L 20000 89000 101 90-110 Sulfate as SO4 77000 5000 ug/L 20000 55000 107 90-110 Matrix Spike Dup (OA15030-MSD1) Prepared: 01/15/2020 13:05 Analyzed: 01/16/2020 11:29 Source: CDO0301-04 Spike Source O/oREC RPD Analvte Result Flaq POL Units Level Result O/oREC Limits RPD Limit Notes Chloride 110000 E 5000 ug/L 20000 89000 107 90-110 1 10 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 22 Of 30 (� �Eo www.encolabs.com QUALITY CONTROL DATA Classical Chemistry Parameters - Quality Control Batch OA15030 - NO PREP - Continued Matrix Spike Dup (OA15030-MSDS) Continued Prepared: 01/15/2020 13:05 Analyzed: 01/16/2020 11:29 Source: CDO0301-04 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Sulfate as SO4 78000 5000 ug/L 20000 55000 112 90-110 1 10 QM-07 Batch OA17026 - NO PREP Blank (OA37026-BLK3) Prepared: 01/17/2020 12:33 Analyzed: 01/18/2020 01:08 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 2200 U 5000 ug/L Sulfate as SO4 2900 U 5000 ug/L LCS (OA17026-BSI) Prepared: 01/17/2020 12:33 Analyzed: 01/18/2020 01:26 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 49000 5000 ug/L 50000 97 90-110 Sulfate as SO4 49000 5000 ug/L 50000 97 90-110 Matrix Spike (OA17026-MS1) Prepared: 01/17/2020 12:33 Analyzed: 01/18/2020 02:01 Source: CC21740-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 24000 5000 ug/L 20000 6100 89 90-110 QM-07 Sulfate as SO4 18000 5000 ug/L 20000 2900 U 92 90-110 Matrix Spike (OA17026-MS2) Prepared: 01/17/2020 12:33 Analyzed: 01/18/2020 02:54 Source: CC21740-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 27000 5000 ug/L 20000 9000 91 90-110 Sulfate as SO4 32000 5000 ug/L 20000 14000 93 90-110 Matrix Spike Dup (OA17026-MSD1) Prepared: 01/17/2020 12:33 Analyzed: 01/18/2020 02:19 Source: CC21740-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 24000 5000 ug/L 20000 6100 90 90-110 0.5 10 Sulfate as SO4 19000 5000 ug/L 20000 2900 U 93 90-110 0.8 10 Batch OA20013 - NO PREP Blank (OA20013-BLK3) Prepared & Analyzed: 01/20/2020 16:33 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Dissolved Solids 50000 U 50000 ug/L LCS (OA20013-BSI) Prepared & Analyzed: 01/20/2020 16:33 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Dissolved Solids 990 50 mg/L 1000 99 80-120 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 23 Of 30 (� �Eo www.encolabs.com QUALITY CONTROL DATA Classical Chemistry Parameters - Quality Control Batch OA2OO13 - NO PREP - Continued Duplicate (OA20013-DUPl) Prepared & Analyzed: O1/20/2020 16:33 Source: CC21023-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Dissolved Solids 2100000 50000 ug/L 2100000 2 20 Batch OA23O11 - NO PREP Blank (OA23011-BLK3) Prepared: O1/23/2020 09:33 Analyzed: 01/23/2020 13:18 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Alkalinity as CaCO3 14000 U 15000 ug/L LCS (OA23011-BSI) Prepared: O1/23/2020 09:33 Analyzed: 01/23/2020 13:19 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Alkalinity as CaCO3 99 15 mg/L 100 99 80-120 Matrix Spike (OA23011-MS3) Prepared: O1/23/2020 09:33 Analyzed: 01/23/2020 13:20 Source: CD00301-04 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Alkalinity as CaCO3 810000 150000 ug/L 400000 360000 113 80-120 Matrix Spike Dup (OA23011-MSD1) Prepared: O1/23/2020 09:33 Analyzed: 01/23/2020 13:21 Source: CD00301-04 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Alkalinity as CaCO3 780000 150000 ug/L 400000 360000 106 80-120 3 25 Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Batch OA15037 -EPA 5O3OB MS Blank (OA16037-BLK3) Prepared: O1/16/2020 00:00 Analyzed: 01/16/2020 13:13 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 0.80 U 2.0 ug/L Toluene-d8 52 u91L 5.00 107 75-125 LCS (OA16037-BSI) Prepared: 01/16/2020 00:00 Analyzed: 01/16/2020 11:29 Spike Source %REC RPD Analyte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 26 2.0 ug/L 25.0 103 80-133 Toluene-d8 4.9 u91L 5.00 98 75-125 Matrix Spike (OA16037-MS1) Prepared: 01/16/2020 00:00 Analyzed: 01/16/2020 11:57 Source: AD00150-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 33 2.0 ug/L 25.0 9.7 95 80-133 Toluene-& 4.9 u91L 5.00 99 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 3O (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Batch OA16O37 - EPA 5030E MS - Continued Matrix Spike Dup (OA36037-MSDS) Prepared: O1/16/2020 00:00 Analyzed: 01/16/2020 12:22 Source: AD00150-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 34 2.0 ug/L 25.0 9.7 96 80-133 1 19 Toluene-& 5.3 ug/L 5.00 106 75-125 Batch OA17O41 - EPA 5O3OB MS Blank (OA37041-BLK3) Prepared: O1/17/2020 00:00 Analyzed: 01/17/2020 13:43 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 0.80 U 2.0 ug/L Toluene-d8 5.6 ug/L 5.00 112 75-125 LCS (OA17041-BS1) Prepared: 01/17/2020 00:00 Analyzed: 01/17/2020 12:52 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 6.0 ug/L 5.00 120 75-125 Matrix Spike (OA17041-MS1) Prepared: 01/17/2020 00:00 Analyzed: 01/17/2020 20:08 Source: CD00896-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 32 2.0 ug/L 25.0 7.2 100 80-133 Toluene-d8 6.1 ug/L 5.00 122 75-125 Matrix Spike Dup (OA17041-MSDS) Prepared: 01/17/2020 00:00 Analyzed: 01/17/2020 20:34 Source: CD00896-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 33 2.0 ug/L 25.0 7.2 101 80-133 0.8 19 Toluene-d8 6.0 ug/L 5.00 120 75-125 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 25 Of 30 (� �Eo www.encolabs.com FLAGS/NOTES AND DEFINITIONS B The analyte was detected in the associated method blank. D The sample was analyzed at dilution. J The reported value is between the laboratory method detection limit (MDL) and the laboratory method reporting limit (MRL), adjusted for actual sample preparation data and moisture content, where applicable. U The analyte was analyzed for but not detected to the level shown, adjusted for actual sample preparation data and moisture content, where applicable. E The concentration indicated for this analyte is an estimated value above the calibration range of the instrument. This value is considered an estimate. MRL Method Reporting Limit. The MRL is roughly equivalent to the practical quantitation limit (PQL) and is based on the low point of the calibration curve, when applicable, sample preparation factor, dilution factor, and, in the case of soil samples, moisture content. PQL PQL: Practical Quantitation Limit. The PQL presented is the laboratory MRL. N The analysis indicates the presence of an analyte for which there is presumptive evidence (85% or greater confidence) to make a "tentative identification". P Greater than 25% concentration difference was observed between the primary and secondary GC column. The lower concentration is reported. [CALC] Calculated analyte - MDL/MRL reported to the highest reporting limit of the component analyses. QM-07 The spike recovery was outside acceptance limits for the MS and/or MSD. The batch was accepted based on acceptable LCS recovery. QV-01 The associated continuing calibration verification standard exhibited high bias; since the result is ND, there is no impact. FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 26 of 3O cn 1 n 3 ^` � N 9 D $ cm f t fo � ' Q �n m 0 r4 m 9' en C3 3 m 4 m O.r Om m m wz EL o C' ? ti .d a N 0m v an m O } C5 4D ro cn a m 6 m m � N a p d — • n 825M Appandft 1,820W LL N x x x EAW# .0260u SIM 0 0 x AMAS.8aftCd.Ca.Cr�C%Fe,Mn.NI,Fb, 3 x x X SL► s%so.TI,V.Ztt o 0 x X x v AkIdIr lLy 310.2 Clwld he 3W,TDS SLO540C Gc� CD m �' V� x x x Hg oz $ 'J 3m m N z 4 rj D O x x x Suftts 300 m a 0 6 V J x' o x �m a p m � 3 D 3 � � T 2 m m X co `D 3 o d 0 co v a fDI Page 27 of 30 Sample Preservation Verification, ENCO Cary Work Order: CC21368 Project: Rowan County Active Landfills -Ind, Pa Client: Golder Associates, Inc. (GO007) Project#: 19123756.100 Logged In: 14-Jan-20 14:26 Logged By: John C King Preservation Check Performed By: '�1 Date/Time: l CC21368-01 Cont Type Prey (pH) pH Checked/ pH Adjusted DatefTime Reagent UsedlCornments Requirement In Control Adjusted A 250mLP+HNO3 <2 Y I N I NA Y/ I NA CC21368-02 Cont Type Pres (pH) Requirement pH Checked/ In Control pH Adjusted DateMme Adjusted Reagent Used/Comments A 270m1_P+HNO3 <2 ]1 N I NA Y /Lty 1 NA Rea ent Name ID 1 2 pH Strip ID: Rea ent Name ID 3 4 Rea ent Name ID 5 6 CaELMNTIPrintlwko_PreservationCheck. rpt Page 28 of 30 1 m Xc o 3 3 C � � m D' A N Q o r. cam. � b � � � m m o� � k m � N C S m a m C7 c m m O^m Z N � N � � O m � 3 a „ n g n Oa a O m �3 C. 0 a m S .Ti a C o 1mo� : 16 r In m .. Sm ? rc� l r3 goar `� ry y N D (7 N ? a oID _a i N �• t6 51 T, z g G � "• � I [eP7� ID " 5` m I N O_ �1 0 o N OF � N m v /+ T'7GOq SZGo D S 1 M 4 9, �4; ?x,Ci�, Cd, C or Cc; t t,, FOA, S!6•*,C461cf,i:301c,ro.5- a z k Su 1 �a 30 G o 3L Q Q F n p PL O m � H G G N cn f O (Q m C CDCD C V 2. m cn a W 1 Q �. U CD o rt3ID OQ a w a N a Y Page 29 of 30 Sample Preservation Verification. ENCO Cary Work Order: CDO0896 Project: Client: Golder Associates, Inc. (GO007) Project#: Logged In: 15-Jan-20 14:30 r-10 Logged By: Preservation Check Performed By: CDO0896-01 Rowan County Active Landfills - Ind. Pa 19123756.100 John C King Date/Time: Cont Type Pres (pH) Requirement pH Checked / In Control pH Adjusted DatelTime Adiusted Reagent l]sed/Comments A 250mLP+HNO3 2 ` _ / N / NA Y 0 / NA Reagent Name ID 1 2 pH Strip ID: CQ-< LdeI Reacient Name ID 3 4 Rea ent Name ID 5 6 Page 30 of 30 C:IELMNT1Printlwko�PreservationCheck.rpt GOLDER ASSOCIATES INC. QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 1 of 3 Project Name: Rowan County C&D Landfill — Parameters Project Reference Number: 19123756.100 Sampling Event Date: January 13, 2019 Review Date: February 6, 2020 Report #: CC21368, CDO0896 4 GOLDER Initials: DC Review: RPK 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. ANALYTE LIST(S) NC Closed Facility List (.500 Rules) X NC C & D List (New Rules) X NC Appendix I NC Appendix I + Detects NC Appendix II NC Subtitle D Leachate List 1.0 CHAIN OF CUSTODY (COC) REVIEW DC COC was properly signed by all parties. DC Correct project name and number are on the form. DC Sample receipt condition at laboratory was acceptable. DC Each sample and blank submitted for analysis appears in the report. Notes: 2.0 SAMPLE HOLDING TIMES DC Holding times for extraction and/or analysis were met for each analytical Method (see lab manual for holding times). GOLDER ASSOCIATES INC. QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 2 of 3 Notes: 3.0 LABORATORY QUALITY CONTROL REVIEW 4 GOLDER DC Laboratory analyzed at least one internal blank for each method, where applicable. DC Laboratory blank is interference -free. DC Surrogate recoveries are provided for each analytical method, where applicable. DC Surrogate recoveries for each method are within the acceptable limits (i.e., at least 50% of the surrogates were within range). DC MS/MSD/LCS data results are provided for each analytical method. DC MS/MSD/LCS recoveries for each method are within the acceptable limits (i.e., at least 1 of the 3 were within range). ➢The Chloride and Sulfate spike recovery was outside acceptance limits for the MS and/or MSD. The QC batch was accepted based on acceptable LCS recovery. 4.0 ANALYTE LISTS/METHODS DC The proper number of constituents are present for each analyte list as identified above (including detects where applicable). DC Proper analytical methods were used for analysis. 5.0 DATA REPORTING DC All analytical reporting associated with the event was performed by the contracted lab. DC Trip, field and/or equipment, and laboratory blank results have all been reported. All detects for blanks are listed below by constituent. All laboratory method blanks, if any, 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. ➢ Field Blank: • Barium @ 1.11 ug/L (J) -none • Methylene Chloride @ 0.68 ug/L (J) — none ➢ Trip Blank: • Methylene Chloride @ 0.50 ug/L (J) - none DC It is clear from the laboratory report that samples have or have not been diluted during analysis, and if the samples have been diluted, the result is reported as a multiple of the dilution (e.g., a sample diluted 10x resulting in an analytical detection of 1.0 should be reported as 10). Those that have been diluted are listed below with the dilution factor. GOLDER ASSOCIATES INC. QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 3 of 3 ➢ Antimony and Thallium (2x) all samples ➢ Chloride (4x), Sulfate as SO4 (4x), Alkalinity (2x) MW18R DC The report provides the reporting limit for each constituent. 4 GOLDER DC The results were reported at or below their proper reporting limits (e.g., MDLs, MRLs, PQLs, etc.). 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 dilution. DC No inorganic and organic constituents were reported above their respective NC 2L Drinking Water Standards in wells, surface points, or field/equipment/trip blanks. NC 2L/GWPS/MCL/IMAC Exceedances ➢ Cobalt (NC 2L IMAC = 1 ug/L) ➢ MW-18R @ 2.48 ug/L (J) ➢ Manganese (NC 2L = 50 ug/L) ➢ MW-18R @ 1550 ug/L ➢ MW-19 @ 200 ug/L ➢ Iron (NC 2L = 300 ug/L) ➢ MW-18R @ 796 ug/L ➢ MW-19 @ 1370 ug/L ➢Thallium (NC 2L IMAC = 0.2 ug/L) ➢ MW-18R @ 0.699 ug/L (J) ➢Vanadium (NC 2L IMAC = 0.3 ug/L) ➢ MW-19 @ 3.35 ug/L (J) ➢Total Dissolved Solids (NC 2L = 500000 ug/L) ➢ MW-18R @ 660000 ug/L ➢1,4-Dioxane (NC 2L = 3 ug/L) ➢ MW-18R @ 6.3 ug/L ➢ MW-19 @ 7.2 ug/L ➢ Copper (SW Chronic Standard = 7 ug/L) ➢ SW-5 @ 4.24 ug/L (J) DC For sites with historical data, no inorganic and organic constituents were detected in a well or surface water point at concentrations outside of their historical range (more than 5X previous concentrations or first-time detections). DC Other report issues/Communications with laboratory/etc.: ➢ The Bromoform associated continuing calibration verification standard exhibited high bias; since the results for all the samples in the report are non -detect, there is no impact. 4 =sQP« ENCO Laboratories 9e0 Accnrate. Timely. Responsive. Innovative. 102-A Woodwinds Industrial Court Cary NC, 27511 Phone: 919.467.3090 FAX: 919.467.3515 Friday, January 31, 2020 Golder Associates, Inc. (G0007) Attn: Darren Cox 5B Oak Branch Drive Greensboro, NC 27407 RE: Laboratory Results for Project Number: 19123756.100, Project Name/Desc: Rowan County Landfill Leachate ENCO Workorder(s): CC21372 Dear Darren Cox, Enclosed is a copy of your laboratory report for test samples received by our laboratory on Friday, January 17, 2020. 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, Meghan K Shea 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 1 H PROJECT NARRATIVE Date: 31 January 2020 Client: Golder Associates, Inc. (G0007) Project: Rowan County Landfill Leachate Lab ID: CC21372 Overview (� �Eo www.encolabs.com Environmental Conservation Laboratories, Inc. (ENCO) analyzed all submitted samples in accordance with the methods referenced in the laboratory report. Any particular difficulties encountered during sample handling by ENCO are discussed in the QC Remarks section below. Quality Control Samples The 1,1-Dichloroethene spike recovery was outside acceptance limits for the 8260D MS and/or MSD. The QC batch was accepted based on acceptable LCS recovery. The Nitrate/Nitrite (NOX) and Sulfate spike recoveries were outside acceptance limits for the MS and/or MSD. The QC batch was accepted based on acceptable LCS recoveries. The Chloroethane associated continuing calibration verification standard exhibited high bias; since the result is non -detect, there is no impact. The reporting limits for 8260D analysis are elevated due to sample foaming. 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. Meghan Shea 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 1 H (� �Eo www.encolabs.com SAMPLE SUMMARY/LABORATORY CHRONICLE Client ID: 8003-L3 Lab ID: CC21372-01 Sampled: 01/16/20 14:10 Received: 01/17/20 13:45 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 02/13/20 01/22/20 13:44 01/24/20 03:33 EPA 353.2 NO PREP 01/18/20 14:10 01/17/20 16:22 01/17/20 18:28 EPA 353.2 NO PREP 02/13/20 01/21/20 13:07 01/21/20 17:01 EPA 353.2 NO PREP 10/11/22 01/29/20 14:56 01/29/20 14:59 EPA 365.4 Same 02/13/20 01/21/20 10:00 01/23/20 18:40 EPA 6010D EPA 3005A 07/14/20 01/17/20 16:36 01/22/20 11:14 EPA 6020E EPA 3005A 07/14/20 01/22/20 10:29 01/23/20 14:05 EPA 8260D EPA 503013_MS 01/30/20 01/21/20 14:14 01/21/20 19:35 SM 5210 B-2011 NO PREP 01/18/20 14:10 01/17/20 12:26 01/17/20 12:26 SM 5220D-2011 Same 02/13/20 01/23/20 11:08 01/23/20 16:15 Client ID: 8003-L1 Lab ID: CC21372-01RE1 Sampled: 01/16/20 14:10 Received: 01/17/20 13:45 Parameter Preparation Hold Date/Time(s) Pren Date/Time(s) Analysis Date/Time(s) EPA 8260D EPA 503013_MS 01/30/20 01/23/20 15:08 01/23/20 23:43 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 3 Of 18 (� �Eo www.encolabs.com SAMPLE DETECTION SUMMARY Client ID: 8003-L1 Lab ID: CC21372-01 Analvte Results Flag MDL Q Units Method Notes Barium - Total 562 1.10 10.0 ug/L EPA 6010D Biochemical Oxygen Demand 27000 2000 2000 ug/L SM 5210 B-2011 Chemical Oxygen Demand 310000 10000 10000 ug/L SM 5220D-2011 Chromium - Total 7.58 J 1.40 10.0 ug/L EPA 6010D Cobalt - Total 4.75 J 1.40 10.0 ug/L EPA 6010D Nickel- Total 19.1 2.20 10.0 ug/L EPA 6010D Nitrate as N 74 J 25 100 ug/L EPA 353.2 Nitrate/Nitrite as N 100 41 100 ug/L EPA 353.2 Nitrite as N 26 J 17 100 ug/L EPA 353.2 Phosphorus 200 25 100 ug/L EPA 365.4 Sulfate as SO4 52000 2900 5000 ug/L EPA 300.0 Vanadium - Total 2.64 J 1.40 10.0 ug/L EPA 6010D Zinc - Total 7.64 J 4.40 10.0 uq/L EPA 6010D I Client ID: 8003-L3 Lab ID: CC21372-01RE3 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dioxane 120 D 4.0 10 ug/L EPA 8260D FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 4 Of 18 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 8003-L1 Lab Sample ID:CC21372-01 Received: 01/17/20 13:45 Matrix: Water Sampled:01/16/20 14:10 Work Order: CC21372 Project: Rowan County Landfill Leachate Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analyte FCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 1.7 UD ug/L 10 1.7 10 OA21038 EPA 8260D O1/21/20 19:35 REF R-04 1,1,1-Trichloroethane [71-55-6]A 1.2 UD ug/L 10 1.2 10 OA21038 EPA 8260D O1/21/20 19:35 REF R-04 1,1,2,2-Tetrachloroethane [79-34-5]A 2.8 UD ug/L 10 2.8 10 OA21038 EPA 8260D O1/21/20 19:35 REF R-04 1,1,2-Trichloroethane [79-00-5]A 1.4 UD ug/L 10 1.4 10 OA21038 EPA 8260D O1/21/20 19:35 REF R-04 1,1-Dichloroethane [75-34-3]A 1.3 UD ug/L 10 1.3 10 OA21038 EPA 8260D O1/21/20 19:35 REF R-04 1,1-Dichloroethene [75-35-4]A 2.1 UD ug/L 10 2.1 10 OA21038 EPA 8260D O1/21/20 19:35 REF R-04 1,2,3-Trichloropropane [96-18-4]A 2.3 UD ug/L 10 2.3 10 OA21038 EPA 8260D O1/21/20 19:35 REF R-04 1,2-Dibromo-3-chloropropane [96-12-8]A 4.8 UD ug/L 10 4.8 10 OA21038 EPA 8260D O1/21/20 19:35 REF R-04 1,2-Dibromoethane [106-93-4]A 6.6 UD ug/L 10 6.6 10 OA21038 EPA 8260D O1/21/20 19:35 REF R-04 1,2-Dichlorobenzene [95-50-1]A 1.9 UD ug/L 10 1.9 10 OA21038 EPA 8260D O1/21/20 19:35 REF R-04 1,2-Dichloroethane [107-06-2]A 2.1 UD ug/L 10 2.1 10 OA21038 EPA 8260D O1/21/20 19:35 REF R-04 1,2-Dichloropropane [78-87-5]A 1.0 UD ug/L 10 1.0 10 OA21038 EPA 8260D O1/21/20 19:35 REF R-04 1,4-Dichlorobenzene [106-46-7]A 1.9 UD ug/L 10 1.9 10 OA21038 EPA 8260D O1/21/20 19:35 REF R-04 2-Butanone [78-93-3]A 13 UD ug/L 10 13 50 OA21038 EPA 8260D O1/21/20 19:35 REF R-04 2-Hexanone [591-78-6]A 8.8 UD ug/L 10 8.8 50 OA21038 EPA 8260D O1/21/20 19:35 REF R-04 4-Methyl-2-pentanone [108-10-1]A 11 UD ug/L 10 11 50 OA21038 EPA 8260D O1/21/20 19:35 REF R-04 Acetone [67-64-1]A 100 UD ug/L 10 100 200 OA21038 EPA 8260D O1/21/20 19:35 REF R-04 Acrylonitrile [107-13-1]A 35 UD ug/L 10 35 100 OA21038 EPA 8260D O1/21/20 19:35 REF R-04 Benzene[71-43-2]A 1.5 UD ug/L 10 1.5 10 OA21038 EPA 8260D O1/21/20 19:35 REF R-04 Bromochloromethane [74-97-5]A 4.8 UD ug/L 10 4.8 10 OA21038 EPA 8260D O1/21/20 19:35 REF R-04 Bromodichloromethane [75-27-4]A 1.7 UD ug/L 10 1.7 10 OA21038 EPA 8260D O1/21/20 19:35 REF R-04 Bromoform [75-25-2]A 2.2 UD ug/L 10 2.2 10 OA21038 EPA 8260D O1/21/20 19:35 REF R-04 Bromomethane [74-83-9]A 1.4 UD ug/L 10 1.4 10 OA21038 EPA 8260D O1/21/20 19:35 REF R-04 Carbon disulfide [75-15-0]A 15 UD ug/L 10 15 50 OA21038 EPA 8260D O1/21/20 19:35 REF R-04 Carbon tetrachloride [56-23-5]A 1.7 UD ug/L 10 1.7 10 OA21038 EPA 8260D O1/21/20 19:35 REF R-04 Chlorobenzene [108-90-7]A 1.7 UD ug/L 10 1.7 10 OA21038 EPA 8260D O1/21/20 19:35 REF R-04 Chloroethane [75-00-3]A 2.3 UD ug/L 10 2.3 10 OA21038 EPA 8260D O1/21/20 19:35 REF QV -OS, R-04 Chloroform [67-66-3]A 1.8 UD ug/L 10 1.8 10 OA21038 EPA 8260D O1/21/20 19:35 REF R-04 Chloromethane [74-87-3]A 1.3 UD ug/L 10 1.3 10 OA21038 EPA 8260D O1/21/20 19:35 REF R-04 cis-1,2-Dichloroethene [156-59-2]A 1.5 UD ug/L 10 1.5 10 OA21038 EPA 8260D O1/21/20 19:35 REF R-04 cis-1,3-Dichloropropene [10061-01-5]A 2.0 UD ug/L 10 2.0 10 OA21038 EPA 8260D O1/21/20 19:35 REF R-04 Dibromochloromethane [124-48-1]A 1.7 UD ug/L 10 1.7 10 OA21038 EPA 8260D O1/21/20 19:35 REF R-04 Dibromomethane [74-95-3]A 2.7 UD ug/L 10 2.7 10 OA21038 EPA 8260D O1/21/20 19:35 REF R-04 Ethylbenzene [100-41-4]A 1.3 UD ug/L 10 1.3 10 OA21038 EPA 8260D O1/21/20 19:35 REF R-04 Iodomethane[74-88-4]A 17 UD ug/L 10 17 50 OA21038 EPA 8260D O1/21/20 19:35 REF R-04 Methylene chloride [75-09-2]A 2.3 UD ug/L 10 2.3 10 OA21038 EPA 8260D O1/21/20 19:35 REF R-04 Styrene [100-42-5]A 1.1 UD ug/L 10 1.1 10 OA21038 EPA 8260D O1/21/20 19:35 REF R-04 Tetrachloroethene [127-18-4]A 1.7 UD ug/L 10 1.7 10 OA21038 EPA 8260D O1/21/20 19:35 REF R-04 Toluene [108-88-3]A 1.4 UD ug/L 10 1.4 10 OA21038 EPA 8260D O1/21/20 19:35 REF R-04 trans-1,2-Dichloroethene [156-60-5]A 2.1 UD ug/L 10 2.1 10 OA21038 EPA 8260D O1/21/20 19:35 REF R-04 trans-1,3-Dichloropropene [10061-02-6]A 1.5 UD ug/L 10 1.5 10 OA21038 EPA 8260D O1/21/20 19:35 REF R-04 trans-1,4-Dichloro-2-butene [110-57-6]A 7.0 UD ug/L 10 7.0 10 OA21038 EPA 8260D O1/21/20 19:35 REF R-04 Trichloroethene [79-01-6]A 1.5 UD ug/L 10 1.5 10 OA21038 EPA 8260D O1/21/20 19:35 REF R-04 Trichlorofluoromethane [75-69-4]A 2.4 UD ug/L 10 2.4 10 OA21038 EPA 8260D O1/21/20 19:35 REF R-04 Vinyl acetate [108-05-4]A 9.5 UD ug/L 10 9.5 50 OA21038 EPA 8260D O1/21/20 19:35 REF R-04 Vinyl chloride [75-01-4]A 3.2 UD ug/L 10 3.2 10 OA21038 EPA 8260D O1/21/20 19:35 REF R-04 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Pager) Of 18 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-Ll Lab Sample ID:CC21372-01 Received: 01/17/20 13:45 Matrix: Water Sampled:01/16/20 14:10 Work Order: CC21372 Project: Rowan County Landfill Leachate Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Ay Notes Xylenes (Total) [1330-20-7]^ 4.5 UD ug/L 10 4.5 30 OA21038 EPA 8260D 01/21/20 19:35 REF R-04 Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 53 1 50.0 107 % 53-136 OA21038 EPA 6260D 011211201935 REF R-04 Dibromofluoromethane 51 1 50.0 102 % 67-129 OA21038 EPA 6260D 0112112019:35 REF R-04 Toluene-& 49 1 50.0 97 % 59-134 OA21038 EPA 6260D 01121120 19:35 REF R-04 Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 3.70 UD ug/L 10 3.70 10.0 OA22017 EPA 6020B 01/23/20 14:05 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OA17038 EPA 6010D 01/22/20 11:14 JDH Barium [7440-39-3]^ 562 ug/L 1 1.10 10.0 OA17038 EPA 6010D 01/22/20 11:14 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 OA17038 EPA 6010D 01/22/20 11:14 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OA17038 EPA 6010D 01/22/20 11:14 JDH Chromium [7440-47-3]^ 7.58 J ug/L 1 1.40 10.0 OA17038 EPA 6010D 01/22/20 11:14 JDH Cobalt[7440-48-4]^ 4.75 J ug/L 1 1.40 10.0 OA17038 EPA 6010D 01/22/20 11:14 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 OA17038 EPA 6010D 01/22/20 11:14 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 OA17038 EPA 6010D 01/22/20 11:14 JDH Nickel[7440-02-O]^ 19.1 ug/L 1 2.20 10.0 OA17038 EPA 6010D 01/22/20 11:14 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OA17038 EPA 6010D 01/22/20 11:14 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 OA17038 EPA 6010D 01/22/20 11:14 JDH Thallium [7440-28-O]^ 1.10 UD ug/L 10 1.10 10.0 OA22017 EPA 6020B 01/23/20 14:05 RLF Vanadium [7440-62-2]^ 2.64 J ug/L 1 1.40 10.0 OA17038 EPA 6010D 01/22/20 11:14 JDH Zinc[7440-66-6]^ 7.64 J ug/L 1 4.40 10.0 OA17038 EPA 6010D 01/22/20 11:14 JDH Classical Chemistry Parameters ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Notes Biochemical Oxygen Demand^ 27000 ug/L 1 2000 2000 OA17014 SM 5210 B-2011 01/17/20 12:26 JOC Chemical Oxygen Demand^ 310000 ug/L 1 10000 10000 OA23023 SM 5220D-2011 01/23/20 16:15 JOC Nitrate as N [14797-55-8]^ 74 J ug/L 1 25 100 OA29029 EPA 353.2 01/29/20 14:59 MKS Nitrate/Nitrite as N^ 100 ug/L 1 41 100 OA21032 EPA 353.2 01/21/20 17:01 AKF Nitrite as N [14797-65-0]^ 26 J ug/L 1 17 100 OA17036 EPA 353.2 01/17/20 18:28 AKF Phosphorus[7723-14-O]^ 200 ug/L 1 25 100 OA21002 EPA 365.4 01/23/20 18:40 AKF Sulfate as SO4 [14808-79-8]^ 52000 ug/L 1 2900 5000 OA22037 EPA 300.0 01/24/20 03:33 LJI Volatile Organic Compounds by GCMS SIM Isotope Dilution ^ - ENCO Orlando certified analyte [NC 424] Analyte rCAS Numberl 1,4-Dioxane [123-91-1]^ Surrogates Toluene-d8 Results Flaa Units DF MDL POLL Batch Method Analyzed Ay Notes 120 D ug/L 5 4.0 10 OA23047 EPA 8260D 01/23/20 23:43 KKW Results DF Soike Lv/ % Rec % Rec Limits Batch Method Analyzed ffly Notes 4.7 1 5.00 95 % 75-125 OA23047 EPA 8260D 01123120 23:43 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 18 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch OA21O3B - EPA 5030E MS Blank (OA21038-BLK1) Prepared: O1/21/2020 14:55 Analyzed: 01/21/2020 17:31 Analvte Result Flaq POL Units 1,1,1,2-Tetrachloroethane 0.17 U 1.0 ug/L 1,1,1-Trichloroethane 0.12 U 1.0 ug/L 1,1,2,2-Tetrachloroethane 0.28 U 1.0 ug/L 1,1,2-Trichloroethane 0.14 U 1.0 ug/L 1,1-Dichloroethane 0.13 U 1.0 ug/L 1,1-Dichloroethene 0.21 U 1.0 ug/L 1,2,3-Trichloropropane 0.23 U 1.0 ug/L 1,2-Dibromo-3-chloropropane 0.48 U 1.0 ug/L 1,2-Dibromoethane 0.66 U 1.0 ug/L 1,2-Dichlorobenzene 0.19 U 1.0 ug/L 1,2-Dichloroethane 0.21 U 1.0 ug/L 1,2-Dichloropropane 0.10 U 1.0 ug/L 1,4-Dichlorobenzene 0.19 U 1.0 ug/L 2-Butanone 1.3 U 5.0 ug/L 2-Hexanone 0.88 U 5.0 ug/L 4-Methyl-2-pentanone 1.1 U 5.0 ug/L Acetone 10 U 20 ug/L Acrylonitrile 3.5 U 10 ug/L Benzene 0.15 U 1.0 ug/L Bromochloromethane 0.48 U 1.0 ug/L Bromodichloromethane 0.17 U 1.0 ug/L Bromoform 0.22 U 1.0 ug/L Bromomethane 0.14 U 1.0 ug/L Carbon disulfide 1.5 U 5.0 ug/L Carbon tetrachloride 0.17 U 1.0 ug/L Chlorobenzene 0.17 U 1.0 ug/L Chloroethane 0.23 U 1.0 ug/L Chloroform 0.18 U 1.0 ug/L Chloromethane 0.13 U 1.0 ug/L cis- 1,2-Dichloroethene 0.15 U 1.0 ug/L cis- 1,3-Dichloropropene 0.20 U 1.0 ug/L Dibromochloromethane 0.17 U 1.0 ug/L Dibromomethane 0.27 U 1.0 ug/L Ethylbenzene 0.13 U 1.0 ug/L Iodomethane 1.7 U 5.0 ug/L Methylene chloride 0.23 U 1.0 ug/L Styrene 0.11 U 1.0 ug/L Tetrachloroethene 0.17 U 1.0 ug/L Toluene 0.14 U 1.0 ug/L trans-1,2-Dichloroethene 0.21 U 1.0 ug/L trans-1,3-Dichloropropene 0.15 U 1.0 ug/L trans-1,4-Dichloro-2-butene 0.70 U 1.0 ug/L Trichloroethene 0.15 U 1.0 ug/L Trichlorofluoromethane 0.24 U 1.0 ug/L Vinyl acetate 0.95 U 5.0 ug/L Vinyl chloride 0.32 U 1.0 ug/L Xylenes (Total) 0.45 U 3.0 ug/L Spike Source %REC RPD Level Result %REC Limits RPD Limit Notes 4-Bromofluorobenzene 53 u91L 50.0 106 53-136 Dibromofluoromethane 49 u91L 50.0 97 67-129 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 7 Of 18 QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch OA21O3B - EPA 5030E MS - Continued (� �Eo www.encolabs.com Blank (OA21038-BLK1) Continued Prepared: O1/21/2020 14:55 Analyzed: 01/21/2020 17:31 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Toluene-d8 46 u91L 50.0 95 59-134 LCS (OA21038-BS1) Prepared: 01/21/2020 14:55 Analyzed: 01/21/2020 15:57 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 16 1.0 ug/L 20.0 82 75-133 Benzene 22 1.0 ug/L 20.0 108 80-134 Chlorobenzene 21 1.0 ug/L 20.0 107 80-120 Toluene 21 1.0 ug/L 20.0 104 71-120 Trichloroethene 22 1.0 ug/L 20.0 109 74-120 Matrix Spike (OA23038-MS1) Prepared: 01/21/2020 14:55 Analyzed: 01/21/2020 15:26 Source: CD01041-09 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 15 1.0 ug/L 20.0 0.21 U 73 75-133 QM-07 Benzene 21 1.0 ug/L 20.0 0.15 U 103 80-134 Chlorobenzene 20 1.0 ug/L 20.0 0.17 U 98 80-120 Toluene 20 1.0 ug/L 20.0 0.14 U 98 71-120 Trichloroethene 21 1.0 ug/L 20.0 0.15 U 103 74-120 Matrix Spike Dup (OA23038-MSD1) Prepared: 01/21/2020 14:55 Analyzed: 01/21/2020 16:28 Source: CD01041-09 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 15 1.0 ug/L 20.0 0.21 U 75 75-133 3 20 Benzene 20 1.0 ug/L 20.0 0.15 U 99 80-134 4 17 Chlorobenzene 20 1.0 ug/L 20.0 0.17 U 100 80-120 2 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 101 74-120 2 22 Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch OA17O38 - EPA 3OO5A Blank (OA17038-BLK1) Prepared: O1/17/2020 16:36 Analyzed: 01/22/2020 10:15 Analvte Arsenic Barium Beryllium Cadmium Chromium Cobalt Copper Lead Nickel Selenium Silver Vanadium Result Flaq POL Units 7.60 U 10.0 ug/L 1.10 U 10.0 ug/L 0.160 U 1.00 ug/L 0.360 U 1.00 ug/L 1.40 U 10.0 ug/L 1.40 U 10.0 ug/L 1.60 U 10.0 ug/L 3.10 U 10.0 ug/L 2.20 U 10.0 ug/L 6.20 U 10.0 ug/L 1.90 U 10.0 ug/L 1.40 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 8 Of 18 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch OA17O3B - EPA 3OO5A - Continued Blank (OA17038-BLK1) Continued Prepared: O1/17/2020 16:36 Analyzed: 01/22/2020 10:15 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Zinc 4.40 U 10.0 ug/L LCS (OA17038-BS1) Prepared: 01/17/2020 16:36 Analyzed: 01/22/2020 10:21 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 192 10.0 ug/L 200 96 80-120 Barium 191 10.0 ug/L 200 95 80-120 Beryllium 19.6 1.00 ug/L 20.0 98 80-120 Cadmium 18.8 1.00 ug/L 20.0 94 80-120 Chromium 193 10.0 ug/L 200 97 80-120 Cobalt 193 10.0 ug/L 200 97 80-120 Copper 192 10.0 ug/L 200 96 80-120 Lead 182 10.0 ug/L 200 91 80-120 Nickel 191 10.0 ug/L 200 95 80-120 Selenium 191 10.0 ug/L 200 95 80-120 Silver 204 10.0 ug/L 200 102 80-120 Vanadium 196 10.0 ug/L 200 98 80-120 Zinc 189 10.0 ug/L 200 95 80-120 Matrix Spike (OA17038-MS1) Prepared: 01/17/2020 16:36 Analyzed: 01/22/2020 10:26 Source: CC21740-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 184 10.0 ug/L 200 7.60 U 92 75-125 Barium 258 10.0 ug/L 200 62.1 98 75-125 Beryllium 20.4 1.00 ug/L 20.0 0.160 U 102 75-125 Cadmium 19.6 1.00 ug/L 20.0 0.360 U 98 75-125 Chromium 199 10.0 ug/L 200 1.40 U 100 75-125 Cobalt 195 10.0 ug/L 200 1.40 U 97 75-125 Copper 197 10.0 ug/L 200 1.60 U 99 75-125 Lead 182 10.0 ug/L 200 3.10 U 91 75-125 Nickel 197 10.0 ug/L 200 2.20 U 99 75-125 Selenium 189 10.0 ug/L 200 6.20 U 94 75-125 Silver 208 10.0 ug/L 200 1.90 U 104 75-125 Vanadium 202 10.0 ug/L 200 1.40 U 101 75-125 Zinc 197 10.0 ug/L 200 4.40 U 98 75-125 Matrix Spike Dup (OA17038-MSDS) Prepared: 01/17/2020 16:36 Analyzed: 01/22/2020 10:28 Source: CC21740-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 190 10.0 ug/L 200 7.60 U 95 75-125 3 20 Barium 256 10.0 ug/L 200 62.1 97 75-125 0.9 20 Beryllium 20.3 1.00 ug/L 20.0 0.160 U 101 75-125 0.5 20 Cadmium 19.2 1.00 ug/L 20.0 0.360 U 96 75-125 2 20 Chromium 197 10.0 ug/L 200 1.40 U 99 75-125 1 20 Cobalt 195 10.0 ug/L 200 1.40 U 97 75-125 0.004 20 Copper 196 10.0 ug/L 200 1.60 U 98 75-125 0.4 20 Lead 186 10.0 ug/L 200 3.10 U 93 75-125 2 20 Nickel 197 10.0 ug/L 200 2.20 U 98 75-125 0.2 20 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 9 Of 18 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch OA17O3B - EPA 3OO5A - Continued Matrix Spike Dup (OA37038-MSDS) Continued Prepared: O1/17/2020 16:36 Analyzed: 01/22/2020 10:28 Source: CC21740-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Selenium 197 10.0 ug/L 200 6.20 U 98 75-125 4 20 Silver 206 10.0 ug/L 200 1.90 U 103 75-125 0.8 20 Vanadium 200 10.0 ug/L 200 1.40 U 100 75-125 0.8 20 Zinc 195 10.0 ug/L 200 4.40 U 97 75-125 1 20 Post Spike (OA17038-PS1) Prepared: 01/17/2020 16:36 Analyzed: 01/22/2020 10:37 Source: CC21740-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 0.189 0.0100 mg/L 0.200 -0.00429 95 80-120 Barium 0.262 0.0100 mg/L 0.200 0.0621 100 80-120 Beryllium 0.0211 0.00100 mg/L 0.0200 6.09E-5 105 80-120 Cadmium 0.0206 0.00100 mg/L 0.0200 3.00E-5 103 80-120 Chromium 0.207 0.0100 mg/L 0.200 -0.000692 103 80-120 Cobalt 0.203 0.0100 mg/L 0.200 0.000740 101 80-120 Copper 0.207 0.0100 mg/L 0.200 0.000720 103 80-120 Lead 0.196 0.0100 mg/L 0.200 0.00122 97 80-120 Nickel 0.204 0.0100 mg/L 0.200 0.00200 101 80-120 Selenium 0.192 0.0100 mg/L 0.200 9.16E-5 96 80-120 Silver 0.204 0.0100 mg/L 0.200 0.000137 102 80-120 Vanadium 0.210 0.0100 mg/L 0.200 -4.57E-6 105 80-120 Zinc 0.202 0.0100 mg/L 0.200 0.00347 99 80-120 Batch OA22O17 - EPA 3OO5A Blank (OA22017-BLK3) Prepared: O1/22/2020 10:29 Analyzed: 01/23/2020 13:39 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 0.370 U 1.00 ug/L Thallium 0.110 U 1.00 ug/L LCS (OA22017-BS1) Prepared: O1/22/2020 10:29 Analyzed: 01/23/2020 13:44 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 20.3 1.00 ug/L 20.0 101 80-120 Thallium 20.1 1.00 ug/L 20.0 100 80-120 Matrix Spike (OA22017-MS1) Prepared: O1/22/2020 10:29 Analyzed: 01/23/2020 13:48 Source: CC21983-05 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 43.4 2.00 ug/L 40.0 1.91 104 75-125 Thallium 40.1 2.00 ug/L 40.0 0.220 U 100 75-125 Matrix Spike Dup (OA22017-MSD1) Prepared: O1/22/2020 10:29 Analyzed: 01/23/2020 13:52 Source: CC21983-05 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 43.5 2.00 ug/L 40.0 1.91 104 75-125 0.2 20 Thallium 41.5 2.00 ug/L 40.0 0.220 U 104 75-125 3 20 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 10 Of 18 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch OA22O17 - EPA 3OO5A - Continued Post Spike (OA22017-PS3) Prepared: O1/22/2020 10:29 Analyzed: 01/23/2020 13:56 Source: CC21983-05 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 22.9 1.00 ug/L 20.0 0.957 110 75-125 Thallium 21.2 1.00 ug/L 20.0 0.00297 106 75-125 Classical Chemistry Parameters - Quality Control Batch OA17O14 - NO PREP Blank (OA17014-BLK3) Prepared & Analyzed: O1/17/2020 12:26 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Biochemical Oxygen Demand 2000 U 2000 ug/L LCS (OA37014-BSI) Prepared & Analyzed: O1/17/2020 12:26 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Biochemical Oxygen Demand 190000 2000 ug/L 198000 98 85-115 Duplicate (OA17014-DUPl) Prepared & Analyzed: O1/17/2020 12:26 Source: CC21841-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Biochemical Oxygen Demand 190000 2000 ug/L 180000 4 30 Batch OA17O36 - NO PREP Blank (OA17036-BLK3) Prepared: O1/17/2020 16:22 Analyzed: 01/17/2020 18:27 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Nitrite as N 17 U 100 ug/L LCS (OA17036-BSI) Prepared: O1/17/2020 16:22 Analyzed: 01/17/2020 18:11 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Nitrite as N 0.98 0.10 mg/L 1.00 98 90-110 Matrix Spike (OA17036-MS3) Prepared: O1/17/2020 16:22 Analyzed: 01/17/2020 18:29 Source: CC21372-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Nitrite as N 1000 100 ug/L 1000 26 98 90-110 Matrix Spike Dup (OA37036-MSD1) Prepared: O1/17/2020 16:22 Analyzed: 01/17/2020 18:30 Source: CC21372-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Nitrite as N 1000 100 ug/L 1000 26 101 90-110 2 10 Batch OA21OO2 - Same FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 11 of 18 (� �Eo www.encolabs.com QUALITY CONTROL DATA Classical Chemistry Parameters - Quality Control Batch OA21002 - Same - Continued Blank (OA21002-BLK1) Prepared: O1/21/2020 10:00 Analyzed: 01/23/2020 18:19 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Phosphorus 25 U 100 ug/L LCS (OA21002-BS1) Prepared: 01/21/2020 10:00 Analyzed: 01/23/2020 18:20 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Phosphorus 1500 100 ug/L 1600 95 80-120 Matrix Spike (OA21002-MS1) Prepared: 01/21/2020 10:00 Analyzed: 01/23/2020 18:23 Source: CC13692-03 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Phosphorus 1100 100 ug/L 640 580 87 80-120 Matrix Spike Dup (OA21002-MSDI) Prepared: 01/21/2020 10:00 Analyzed: 01/23/2020 18:24 Source: CC13692-03 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Phosphorus 1100 100 ug/L 640 580 86 80-120 0.7 25 Batch OA21032 - NO PREP Blank (OA21032-BLK3) Prepared: O1/21/2020 13:07 Analyzed: 01/21/2020 16:48 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Nitrate/Nitrite as N 41 U 100 ug/L LCS (OA21032-BSI) Prepared: O1/21/2020 13:07 Analyzed: 01/21/2020 16:50 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Nitrate/Nitrite as N 1.3 0.10 mg/L 1.25 104 90-110 Matrix Spike (OA23032-MS3) Prepared: O1/21/2020 13:07 Analyzed: 01/21/2020 16:53 Source: CC13692-03 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Nitrate/Nitrite as N 1300 100 ug/L 521 740 113 90-110 QM-07 Matrix Spike (OA23032-MS2) Prepared: O1/21/2020 13:07 Analyzed: 01/21/2020 16:59 Source: CC21023-04 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Nitrate/Nitrite as N 6400 1000 ug/L 5000 970 108 90-110 Matrix Spike Dup (OA23032-MSD1) Prepared: O1/21/2020 13:07 Analyzed: 01/21/2020 16:55 Source: CC13692-03 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Nitrate/Nitrite as N 1300 100 ug/L 521 740 112 90-110 0.4 10 QM-07 Batch OA22037 - NO PREP FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 12 Of 18 QUALITY CONTROL DATA Classical Chemistry Parameters - Quality Control Batch OA22037 - NO PREP - Continued (� �Eo www.encolabs.com Blank (OA22037-BLK1) Prepared: 01/22/2020 13:44 Analyzed: 01/24/2020 01:11 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Sulfate as SO4 2900 U 5000 ug/L LCS (OA22037-BS1) Prepared: 01/22/2020 13:44 Analyzed: 01/24/2020 01:29 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Sulfate as SO4 50000 5000 ug/L 50000 100 90-110 Matrix Spike (OA22037-MS3) Prepared: 01/22/2020 13:44 Analyzed: 01/24/2020 02:04 Source: CC17477-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Sulfate as SO4 25000 5000 ug/L 20000 8100 83 90-110 QM-07 Matrix Spike (OA22037-MS2) Prepared: 01/22/2020 13:44 Analyzed: 01/24/2020 02:57 Source: CC20559-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Sulfate as SO4 31000 5000 ug/L 20000 14000 86 90-110 QM-07 Matrix Spike Dup (OA22037-MSD1) Prepared: 01/22/2020 13:44 Analyzed: 01/24/2020 02:22 Source: CC17477-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Sulfate as SO4 26000 5000 ug/L 20000 8100 89 90-110 5 10 QM-07 Batch OA23023 - Same Blank (OA23023-BLK3) Prepared: 01/23/2020 11:08 Analyzed: 01/23/2020 16:15 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chemical Oxygen Demand 10000 U 10000 ug/L LCS (OA23023-BSI) Prepared: 01/23/2020 11:08 Analyzed: 01/23/2020 16:15 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chemical Oxygen Demand 520000 10000 ug/L 500000 104 90-110 Matrix Spike (OA23023-MS3) Prepared: 01/23/2020 11:08 Analyzed: 01/23/2020 16:15 Source: CC21008-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chemical Oxygen Demand 1600000 20000 ug/L 1000000 650000 99 90-110 Matrix Spike Dup (OA23023-MSD1) Prepared: 01/23/2020 11:08 Analyzed: 01/23/2020 16:15 Source: CC21008-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chemical Oxygen Demand 1600000 20000 ug/L 1000000 650000 98 90-110 0.5 5 Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Batch OA22044 - EPA 5030E MS FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 13 Of 18 0Nk"q09 www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Batch OA22O44 - EPA 5030E MS - Continued Blank (OA22044-BLKI) Prepared: O1/22/2020 00:00 Analyzed: O1/22/2020 13:27 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 0.80 U 2.0 ug/L Toluene-& 4.5 u9/L 5.00 90 75-125 LCS (OA22044-BSI) Prepared: 01/22/2020 00:00 Analyzed: 01/22/2020 12:21 Spike Source %REC RPD Analvte Result Flaa POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 24 2.0 ug/L 25.0 97 80-133 Toluene-& 4.6 u9/L 5.00 92 75-125 Matrix Spike (OA22044-MSS) Prepared: 01/22/2020 00:00 Analyzed: 01/22/2020 18:59 Source: CC21372-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 140 E 2.0 ug/L 25.0 120 90 80-133 Toluene-d8 5.4 u9/L 5,00 108 75-125 Matrix Spike Dup (OA22044-MSD1) Prepared: 01/22/2020 00:00 Analyzed: 01/22/2020 19:24 Source: CC21372-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 140 E 2.0 ug/L 25.0 120 80 80-133 2 19 Toluene-& 4.7 u9/L 5.00 94 75-125 Batch OA23O47 - EPA 5030E MS Blank (OA23047-BLK3) Prepared: O1/23/2020 15:08 Analyzed: O1/23/2020 15:38 Spike Source %REC RPD Analvte Result Flaa POL Uni Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 0.80 U 2.0 ug/L Toluene-& 5.1 u9/L 5.00 102 75-125 LCS (OA23047-BS1) Prepared: 01/23/2020 00:00 Analyzed: 01/23/2020 14:47 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 25 2.0 ug/L 25.0 102 80-133 Toluene-& 5.1 u9/L 5,00 102 75-125 Matrix Spike (OA23047-MS1) Prepared: 01/23/2020 15:08 Analyzed: 01/24/2020 00:08 Source: AD00512-01 Spike Source %REC RPD Analvte Result Flaa POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 22 2.0 ug/L 25.0 0.80 U 90 80-133 Toluene-d8 5.0 u9/L 5.00 100 75-125 Matrix Spike Dup (OA23047-MSD1) Prepared: 01/23/2020 15:08 Analyzed: 01/24/2020 00:34 Source: AD00512-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 22 2.0 ug/L 25.0 0.80 U 90 80-133 0.04 19 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 14 Of 1 H (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Batch OA23O47 - EPA 5030E MS - Continued Matrix Spike Dup (OA23047-MSDS) Continued Prepared: 01/23/2020 15:08 Analyzed: 01/24/2020 00:34 Source: AD00512-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Toluene-d8 4.7 u9/L 5.00 94 75-125 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 15 Of 18 (� �Eo www.encolabs.com FLAGS/NOTES AND DEFINITIONS B The analyte was detected in the associated method blank. D The sample was analyzed at dilution. J The reported value is between the laboratory method detection limit (MDL) and the laboratory method reporting limit (MRL), adjusted for actual sample preparation data and moisture content, where applicable. U The analyte was analyzed for but not detected to the level shown, adjusted for actual sample preparation data and moisture content, where applicable. E The concentration indicated for this analyte is an estimated value above the calibration range of the instrument. This value is considered an estimate. MRL Method Reporting Limit. The MRL is roughly equivalent to the practical quantitation limit (PQL) and is based on the low point of the calibration curve, when applicable, sample preparation factor, dilution factor, and, in the case of soil samples, moisture content. PQL PQL: Practical Quantitation Limit. The PQL presented is the laboratory MRL. N The analysis indicates the presence of an analyte for which there is presumptive evidence (85% or greater confidence) to make a "tentative identification". P Greater than 25% concentration difference was observed between the primary and secondary GC column. The lower concentration is reported. [CALC] Calculated analyte - MDL/MRL reported to the highest reporting limit of the component analyses. QM-07 The spike recovery was outside acceptance limits for the MS and/or MSD. The batch was accepted based on acceptable LCS recovery. QV-01 The associated continuing calibration verification standard exhibited high bias; since the result is ND, there is no impact. R-04 The Reporting Limits for this analysis are elevated due to sample foaming. FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 16 of 18 E v Ul 10 V C a i r� cm cd 4. 0 Cc tY O/$ V) � N�p W N C 0 0L` �¢Z LL 0" z a U w rx 0� o am 0 mUrfDy a.' z LL LL n 05 U) z 0 V W O rpp V z a N V 0 � LL� ui a O a a r70 N m �cc$ Q I �.,/� c' ! E o �� CIJ 111 m CL (DItN� E S6 J l.0 OL v U � 006 elgn5 C x d`ZTgt XON x oWi a E � m Z'£ C N se OWUN x GOZZgWS GOO xlu z c3 uZA'll'o$ o m xlpueday a09Z9 x v a m O = ~ U v i moo+ � n L° rQ� CD h U E a S V 9 ❑ � 0_S c �' C H ti 2S 9 O C IL ICL a m m n U w h v c o � N O � Z v m g l� � P m/r �� rn m -cry Z E ti E Li o Ep �Eme a� c E ` C- E E v a � c U S- Q 0 v ' 0 U m t m 63 �Q -CC E 1 E E c 0 N n cr cc IM C] -E � E � c ` c m N m m 4i q Y aE c F Page 17 of in U f 3 c E Sample Preservation Verification ENCO Cary Work Order: CC21372 Project: Rowan County Landfill Leachate Client: Golder Associates, Inc. (GO007) Project #: 19123756.100 Logged In: 17-Jan-20 14:14 Logged By: Rachel Ann Yonish, Preservation Check Performed By: Date/Time: CC21372-01 Cont Type Pres (pH) Requirement pH Checked / In Control pH Adjusted Date/Time Adjusted Reagent Used/Comments C 250mLP+H2SO4 <2 N.I NA Y / V NA D 250mLP+HNO3 <2 N / NA Y N )/ NA Rea ent Name ID 1 2 pH Strip ID: _ PH Strips C91<1061 Rea ent Name ID 3 4 Reacient Name ID 5 6 C:lelmntlPrirn,Yv,.,,_ Page 18 of 18 1 GOLDER ASSOCIATES NC, INC. G O L D E R QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 1 of 3 Project Name: Rowan County Active MSW Landfill - Leachate Project Reference Number: 19123756.100 Sampling Event Date: January 16, 2020 Review Date: February 6, 2020 Report #: CC21372 Initials: DC Review: RPK 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 List (.500 Rules) NC C & D List (New Rules) X NC Appendix I NC Appendix I + Detects NC Appendix II X NC Subtitle D Leachate List Other: 1.0 CHAIN OF CUSTODY (COC) REVIEW DC COC was properly signed by all parties. DC Correct project name and number are on the form. DC Sample receipt condition at laboratory was acceptable. DC Each sample and blank submitted for analysis appears in the report. 2.0 SAMPLE HOLDING TIMES DC Holding times for extraction and/or analysis were met for each analytical Method (see below for reference). GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 2 of 3 %0 GOLDER Review Criteria Method Anal tes Holding Time SW-846 Method 8260 and 8011 VOCs 14 days SW-846 Methods 8270, 8080, 8081, 8082, and 8151 SVOCs, PCBs, pesticides and herbicides 7 days for extraction, 40 days from extraction for analysis SW-846 Methods 6000 and 7000 Series Metals except mercury 6 months (no temperature requirements) SW-846 Method 7470 Mercury 28 days SW-846 Method 376.1 Sulfide 7 days SW-846 Method 9010 Cyanide 14 days EPA Method 300 Nitrate/Sulfate 48 hours/28 days EPA Method 405.1 BOD 48 hours EPA Method 410.4 COD 28 days EPA Method 365.4 Phosphorous 28 days 3.0 LABORATORY QUALITY CONTROL REVIEW DC Laboratory analyzed at least one internal blank for each method, where applicable. DC Laboratory blank is interference -free. DC Surrogate recoveries are provided for each analytical method, where applicable. DC Surrogate recoveries for each method are within the acceptable limits (i.e., at least 50% of the surrogates were within range). DC MS/MSD/LCS data results are provided for each analytical method. DC MS/MSD/LCS recoveries for each method are within the acceptable limits (i.e., at least 1 of the 3 were within range). The 1,1-Dichloroethene spike recovery was outside acceptance limits for the 8260D MS and/or MSD. The QC batch was accepted based on acceptable LCS recovery. The Nitrate/Nitrite (NOX) and Sulfate spike recoveries were outside acceptance limits for the MS and/or MSD. The QC batch was accepted based on acceptable LCS recoveries.. 4.0 ANALYTE LISTS/METHODS DC The proper number of constituents are present for each analyte list as identified above (including detects where applicable). DC Proper EPA SM 2540C-1997 analytical methods were used for analysis. 5.0 DATA REPORTING DC All analytical reporting associated with the event was performed by the contracted lab. DC Trip, field and/or equipment, and laboratory blank results have all been reported. All GOLDER ASSOCIATES NC, INC. G O L D E R QUALITY ASSURANCE & QUALITY CONTROL 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. DC It is clear from the laboratory report that samples have or have not been diluted during analysis, and if the samples have been diluted, the result is reported as a multiple of the dilution (e.g., a sample diluted 10x resulting in an analytical detection of 1.0 should be reported as 10). Those that have been diluted are listed below with the dilution factor. ➢ Antimony, Thallium, VOCs (10x), 1,4-Dioxane (5x) DC The report provides the reporting limit for each constituent. DC The results were reported at or below their proper reporting limits (i.e., MDLs with SWSLs reported). Those that are not reported correctly are listed below (by constituent) with the proper reporting limit listed beside them. State if the reporting limit error is due to dilutions. DC No organic or organic constituents were reported above their respective NC 2L Drinking Water Standards/GWPS in wells, or field/equipment/trip blanks, or above applicable surface water standards in surface water points. DC No inorganic or organic constituents were detected in a well or surface water point at quantified concentrations outside of their historical range (more than 5X previous concentrations or first-time detections). DC Other report issues/Communications with laboratory/etc.: • The Chloroethane associated continuing calibration verification standard exhibited high bias; since the result is non -detect, there is no impact. • The reporting limits for 8260D analysis are elevated due to sample foaming. • First analysis of 1,4-dioxane ' GOLDER golder.com