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Home My WebLink About8003_Rowan_MSWLF_CDLF_Jan2023GW_FID1810343_20230706I pENR USE ONLY ❑Paper Report [:]Electronic Data - Email CD (data loaded: Yes / No Doc/Event #: NC DENR Environmental Monitoring Division of Waste Management - Solid Waste Reporting Form Notice: This form and any information attached to it are "Public Records" as defined in NC General Statute 132-1. As such, these documents are available for inspection and examination by any person upon request (NC General Statute 132-6). Instructions: Prepare one form for each individually monitored unit. Please type or print legibly. Attach a notification table with values that attain or exceed NC 2L groundwater standards or NC 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 138 .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): WSP USA Inc. (on behalf of Rowan County) Contact for questions about data formatting. Include data preparer's name, telephone number and E-mail address: Name: Darren Cox E-mail: darren.coxBwso.com Phone: 336-852-4903 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 January 17- 19, 2023 and (Active MSW and Closed C&D) Woodleaf, NC 27054 80 03 .1600 and .500 April 4, 2023 Environmental Status: (Check all that apply) Initial/Background Monitoring ❑X Detection Monitoring ❑X Assessment Monitoring Corrective Action of data submitted: (Check all that apply) Groundwater monitoring data from monitoring wells Methane gas monitoring data Groundwater monitoring data from private water supply wells ❑ Corrective action data (specify) Leachate monitoring data ❑ Other(specify) Surface water monitoring data 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. 1 am aware that there are significant penalties for making any false statement, representation, or certification including the possibility of a fine and imprisonment. Benjamin S. Draper, PG Assistant VP and Geologist 336-852-4903 Facility R resentative%e (Print) Title (Area Code) Telephone Number HN11ttrfflf -qp 5-s 7-6-2023 Affix NC Licen rofelsit '6r%iogist Seal 2. Date WSP USA Inc., 5B Oak Branch Drive, Greensboro, NC 27407 Facility Representative Address PG (C-557) / PE (F-0165) NC PE Firm License Number (if applicable effective May 1, 2009) Revised 6/2009 zo 2i 2313 1 _67-atf -Z-3 :)G' Q O� ter. S. ,� REPORT FIRST SEMI-ANNUAL 2023 WATER QUALITY MONITORING REPORT Active Rowan County Landfill, Permit No. 80-03 Rowan County, North Carolina Submitted to: Craig Powers, Director of Engineering and Environmental Services 1102 N Long Street Extension East Spencer, NC 28039 Submitted by: 5B Oak Branch Drive, Greensboro, North Carolina, USA 27407 +1 336 852 4903 July 6, 2023 Distribution List Jeff Boyd, Landfill Manager, 789 Campbell Road, Woodleaf, NC 27054, (704) 278-2211 jeff.boyd@rowancountync.gov (Electronic Copy) GI-21456818.001 Mike Plummer, PE, HDR, 440 South Church Street, Suite 1000 Charlotte, NC 28202, (704) 338 6843, michael.plummer@hdrinc.com (Electronic Copy) Jaclynne Drummond, Hydrogeologist, North Carolina Department of Environmental Quality, Division of Waste Management - Solid Waste Section, 2090 US Highway 70, Swannanoa, NC 28778, jaclynne.drummond@ncdenr.gov, 828-296-4706. NN%%I) July 6, 2023 Executive Summary GL21456818.001 On behalf of Rowan County Department of Environmental Management (Rowan County) WSP USA Inc. (WSP), formerly Golder Associates NC Inc. (Golder), is submitting the enclosed Water Quality Monitoring Report which documents the results of the January 17 - 19, 2023 compliance monitoring event, and the subsequent April 4, 2023 verification sampling event at the Rowan County Landfill, North Carolina Solid Waste Permit (NCSWP) No. 80-03. 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. MSW Landfill Rowan County currently monitors groundwater at the active MSW landfill in accordance with the detection monitoring program detailed in Title 15A of the North Carolina Administrative Code (NCAC) Subchapter 13B .1633 of the North Carolina Solid Waste Management Rules (NCSWMR). Three (3) NC Appendix I listed inorganic constituents (cobalt, chromium, and vanadium) were detected at concentrations above their respective NC 2L Groundwater Standards (i.e., NC 2L Standards) in samples collected from one or more downgradient monitoring locations during this monitoring event. Cobalt was detected in samples collected from MW-20, MW-28R, and the French Drain at estimated concentrations above the NC 2L Standard. Similarly, vanadium was detected in samples collected from MW-25 and MW-27 at estimated concentrations above the NC 2L Standard. As cobalt and vanadium were detected at estimated (i.e., non -quantifiable) concentrations below the method reporting limits, per 15A NCAC 02L .0202 (b)(1), no regulatory actions are required for estimated values below the reporting limits (a.k.a. Practical Quantitation Limits or PQLs) that are above groundwater standards. Chromium and vanadium were also detected at quantifiable concentrations above their respective NC 2L Standards in samples collected from the French Drain. Verification samples were collected and analyzed for vanadium during the April 2023 resampling event. The concentration of vanadium was not verified during the resampling event. Chromium will be verified during the next sampling event, tentatively scheduled for July 2023. One (1) NC Appendix I listed organic constituent (tetrachloroethene) was detected at a quantifiable concentration of 1.0 ug/L in samples collected from MW-7 during the January 2023 monitoring event. Verification samples collected from MW-7 during the April 2023 resampling event confirmed the concentration of tetrachloroethene. In accordance with 15A NCAC 13B .1634, the County will submit an AMWP to further evaluate the detections of tetrachloroethene in samples collected from MW-7. C&D Landfill Rowan County currently monitors groundwater at the closed C&D landfill in accordance with the assessment monitoring program detailed in 15A NCAC 13B .0545 and for the indicator parameters listed in 15A NCAC 13B .0544 of the NCSWMR. The C&D landfill entered assessment monitoring following detections of benzene in groundwater samples collected from downgradient monitoring wells. As approved by NC DEQ on January 4, 2021, on May 13 - 14, 2021 groundwater monitoring wells MW-18R and MW-19 were replaced with MW-18R2 NN%%I) July 6, 2023 GL21456818.001 and MW-19R, respectively. Based on the August 2021 monitoring results, an Assessment Monitoring Work Plan (AMWP) was submitted to NC DEQ on January 18, 2022 and approved on January 20, 2022. The AMWP stated that MW-18R2 would be sampled and analyzed for NC Appendix II listed constituents, and that a pore -water sample (PWS-1) would be collected annually from a nearby stream downgradient of MW-18R2 and analyzed for NC Appendix I volatile organic compounds (VOCs). An AMWP addendum was submitted to NC DEQ on December 21, 2022 in response to detections of VOCs in MW-19R. The AMWP addendum included the analysis for NC Appendix II listed constituents for samples collected from MW-19R and the addition of a second pore -water sample location, PWS-2. Similar to PWS-1, samples collected from PWS-2 will be collected annually and analyzed for NC Appendix I VOCs. The January 2023 monitoring event was the second assessment monitoring event for MW-18R2 and the first assessment monitoring event for MW-19R. Three (3) inorganic constituents (cobalt, iron, and manganese) were detected at quantifiable concentrations above their respective NC 2L Standards in samples collected from MW-18R2 during this monitoring event. The indicator parameters sulfate and total dissolved solids were also detected above their respective NC 2L Standards during this event in samples collected from MW-18R2. One (1) NC Appendix I listed organic constituent (benzene) was detected in samples collected from MW-18R2 and MW-19R at concentrations above their respective NC 2L Standards during this sampling event. Per the approved AMWP, semi -volatile organic compounds were also analyzed for samples collected from MW-19R during the January 2023 sampling event. The semi -volatile organic compound, heptachlor epoxide, was detected at an estimated concentration above the NC 2L Standard during the January 2023 sampling event. Verification samples were collected for heptachlor epoxide during the April 2023 resampling event. The compound, heptachlor epoxide, was detected at a quantifiable concentration above the NC 2L Standard during the verification resampling event. This compound, heptachlor epoxide, as well as the NC Appendix II listed constituents isophorone, 4,4-DDD, and sulfide, which were detected at estimated concentrations during the January 2023 sampling event will be analyzed as detects for samples collected from MW-19R during future sampling events. The compound, 1,4-dioxane, was also analyzed for samples collected from the C&D landfill, per the May 30, 2018 NC DEQ memorandum, during the January 2023 sampling event. During the January 2023 monitoring event, the compound, 1,4-dioxane, was observed in the samples collected from MW-18R2 and MW-19R at concentrations which exceeded the NC 2L Standard. In general, the concentrations of 1,4-dioxane were consistent with recent concentrations observed at these locations. It should be noted that sampling for the compound, 1,4-dioxane, is not currently required by rule and is not included as part of the facility's approved WQMP. Surface Water and Leachate One (1) inorganic constituent, copper, was detected above the chronic but below the acute surface water standard in samples collected from upstream monitoring point, SW- 2, during the January 2023 sampling event. No other inorganic or organic constituents were detected in samples collected from surface water sampling locations above the surface water standards during this sampling event. Concentrations reported for the leachate samples collected during this sampling event are generally consistent with historical results for this facility. NN%%I) July 6, 2023 Conclusions GI-21456818.001 Based on these results and in response to the detection of tetrachloroethene in samples collected from MW-7, Rowan County Environmental Services will submit an AMWP or an alternate source demonstration (ASD) as outlined in Title 15A NCAC 13B .1634 for the MSW landfill. Per the current approved AMWP submitted to NC DEQ for the closed C&D landfill, assessment monitoring will continue at monitoring well MW-18R2 for NC Appendix I listed constituents and 1,4-dioxane. Additionally, monitoring well MW-19R will continue to be monitored in accordance with the approved AMWP addendum during the next sampling event. July 6, 2023 Table of Contents GL21456818.001 1.0 INTRODUCTION.............................................................................................................................................1 1.1 Site Description and Background.........................................................................................................1 1.2 Compliance Monitoring History............................................................................................................1 1.3 Hydrogeologic Setting..........................................................................................................................2 2.0 FIELD PROGRAM, MONITORING RESULTS, AND DISCUSSION..............................................................3 2.1 Visual Inspection Program...................................................................................................................3 2.2 Well Network and Groundwater Elevation Measurements..................................................................3 2.3 January 2023 Groundwater and Surface Water Monitoring Event......................................................4 2.4 March 2023 Verification Event.............................................................................................................5 2.5 Laboratory Analysis Program...............................................................................................................5 3.0 LABORATORY AND FIELD QA/QC..............................................................................................................5 4.0 DATA EVALUATION......................................................................................................................................5 4.1 North Carolina Groundwater and Surface Water Quality Standard Comparisons ..............................6 4.1.1 MSW Facility...................................................................................................................................6 4.1.2 C&D Facility.................................................................................................................................... 6 4.1.3 Surface Water.................................................................................................................................7 5.0 CONCLUSIONS..............................................................................................................................................7 6.0 REFERENCES................................................................................................................................................7 TABLES Table 1 Summary of Historical Static Groundwater Elevation Data Table 2 Summary of Estimated Horizontal Flow Velocities Table 3 Summary of Monitoring Well Construction Information Table 4 Summary of Detected Constituents in Groundwater at the MSW Landfill Table 5 Summary of Field Parameters in Groundwater at the MSW Landfill Table 6 Summary of Detected Constituents in Groundwater at the C&D Landfill Table 7 Summary of Field Parameters in Groundwater at the C&D Landfill Table 8 Summary of Detected Constituents in Surface Water Table 9 Summary of Field Parameters in Surface Water Table 10 Summary of Analytical Detections and Field Parameters in Leachate N\til) vi July 6, 2023 DRAWING Drawing 1 Groundwater Contour Map, January 17, 2023 APPENDICES GL21456818.001 Appendix A Groundwater and Surface Water Sampling Logs Appendix B January 2023 Water Quality Monitoring and April 2023 Verification Resampling Certificates -of -Analysis, Chain -of -Custody, and Laboratory Data Reviews NN%%I) vll July 6, 2023 GL21456818.001 1.0 INTRODUCTION This report summarizes the monitoring results from the January 17 — 19, 2023 water quality monitoring event and the April 4, 2023 verification sampling 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 landfills under permit No. 80-03 since 1989. The C&D landfill located on site ceased accepting waste on June 30, 2008. The County monitors water quality (i.e., groundwater, surface water, and leachate) at the MSW landfill semi-annually in accordance with Title 15A of the North Carolina Administrative Code (NCAC) Subchapter 13B .1633. The County also monitors water quality (i.e., groundwater and surface water) at the C&D landfill semi-annually in accordance with 15A NCAC 13B .0545; the C&D facility closed in 2008. 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 375 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, rural 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, a closed C&D landfill unit, and a closed land clearing inert debris (LCID) 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 MSW facility was initiated in December 1989 under the Detection Monitoring Program. 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 14 active monitoring wells (MW-1, MW-7, MW-9, MW-11, MW-12, MW-13, MW-16, MW-20, MW-23, MW-24R, MW-25, MW-26, MW-27, and MW-28R), which monitor the uppermost aquifer beneath the facility. Monitoring wells MW-6, MW-23A, MW 27A, and MW-28 are monitored during each semi-annual sampling event for water levels only. Three (3) monitoring wells (i.e., MW-17, MW-18R2, and MW-19R) monitor the C&D landfill located to the east of the active MSW landfill. In 2016, due to detections of tetrachloroethene and trichloroethene in samples collected from MW-28 the MSW landfill entered into assessment monitoring per 15A NCAC 13B .1634 of the NCSWMR. On July 11, 2017, MW-28R was installed as a replacement well for MW-28. Monitoring well, MW-28, was installed at a location which was closer to the waste unit, as part of an Alternate Source Demonstration (ASD) and as approved in correspondence from NC DEQ dated December NN%%I July 6, 2023 GL21456818.001 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 monitoring for the first semi-annual 2019 water quality monitoring event was approved by NC DEQ on June 5, 2018. At the C&D facility, on May 13 - 14, 2021, MW-18R2 and MW-19R were installed as replacement wells for MW-18R and MW-19 as approved in correspondence with NC DEQ dated January 8, 2021. Benzene was detected in the samples collected from MW-18R2 at quantifiable concentrations above the NC 2L Groundwater Standard (NC 2L Standard) during the August 2021 sampling event. Based on the August 2021 monitoring results, an Assessment Monitoring Work Plan (AMWP) was submitted to NC DEQ on January 18, 2022 and approved on January 20, 2022. The AMWP stated that MW-18R2 would be sampled and analyzed for NC Appendix II parameters annually, and that a pore -water sample (PWS-1) would be collected annually from a nearby stream downgradient of the well and analyzed for NC Appendix I VOCs. Benzene was detected in the samples collected from MW-19R at quantifiable concentrations above the NC 2L Standard during the August 2022 sampling event. Based on the August 2022 monitoring results, an AMWP addendum was submitted to NC DEQ on Dec 21, 2022 and approved on January 4, 2023. The AMWP stated that MW-19R would be sampled and analyzed for NC Appendix 11 parameters annually, and that a pore -water sample (PWS-2) would be collected annually from a nearby stream downgradient of the well and analyzed for NC Appendix I VOCs. The January 2023 event was the first assessment monitoring event for MW-19R. Five (5) surface water locations (SW-1 through SW-5) are also sampled; SW-5 is a downstream monitoring location which monitors surface water adjacent to the C&D landfill. The other four (4) surface water locations monitor surface water surrounding the active MSW landfill; SW-1 is the only upstream monitoring location at the Site. 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 surface water monitoring locations 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 2023 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 NN%%I2 July 6, 2023 GL21456818.001 directions are consistent with previously submitted groundwater surface contour maps for this facility. Based on the January 2023 groundwater surface contour map, the hydraulic gradient in the shallow aquifer underlying the facility averaged approximately 0.035. 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: (K x i) VyW n e where V9W = 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 162 feet/year in the MSW area to approximately 497 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. 2.0 FIELD PROGRAM, MONITORING RESULTS, AND DISCUSSION Field activities conducted as part of the January 2023 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 leachate 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. During this compliance monitoring event, no physical indicators of a potential release were observed in the vicinity of the waste management areas by the sampling personnel. 2.2 Well Network and Groundwater Elevation Measurements 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 17 groundwater monitoring wells (i.e., 14 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 in the uppermost aquifer underlying waste disposal areas. Water quality was monitored during the January 2023 water quality monitoring event (WQME) in accordance with the revised WQMP, which was approved by NC DEQ as part of the life of site Permit Renewal in May 2021. 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 NN%%I July 6, 2023 GL21456818.001 area. Monitoring wells, MW-1, MW-7, MW-11, MW 12, MW-13, MW-20, MW-23, 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-18R2 and MW-19R. 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 2023 Groundwater and Surface Water Monitoring Event Personnel from WSP visited the facility on January 17 - 19, 2023, to purge and sample the 17 compliance groundwater monitoring wells. Samples were also collected from the 5 surface water monitoring locations, the French Drain, and the facility's leachate pond. 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 which was dependent upon the purge rate which was measure at the commencement of purging each well. 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 500 milliliters per minute. Micro -purging was continued until stabilization was indicated by the field parameters. Prior to sampling, the laboratory -supplied sample containers used to collect the water samples detailed above were prepared. Each sample container was labelled 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 labelled, 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. The surface water samples, and the French drain groundwater samples were 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 NN%%I July 6, 2023 GL21456818.001 sample ID, sampling personnel, sampling equipment, sampling location, sampling method, field observations, and water -quality measurements. 2.4 April 2023 Verification Event WSP personnel visited the facility on April 4, 2023, to re -sample MW-7, MW-19R, and the French drain to verify the concentration of tetrachloroethene, heptachlor epoxide, and vanadium which were detected during the January 2023 event. Groundwater samples were collected utilizing the same procedures as described above. After collection, the samples were placed in a cooler on ice under chain -of -custody control. As presented, copies of the sampling logs are included in Appendix A. Included on the logs is a description of the sampling equipment, sampling method, field observations, location, and water quality measurements. 2.5 Laboratory Analysis Program The groundwater, surface water, and leachate samples collected in January 2023, from the active MSW landfill were delivered by courier to Eurofins Raleigh (Eurofins) formerly known as Environmental Conservation Laboratories, Inc. (ENCO) of Cary, NC under chain -of -custody control for analysis of NC Appendix I constituents, the leachate sample was also analyzed for 1,4 dioxane. Groundwater samples collected from the closed C&D landfill in January 2023 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; select NC Appendix II constituents detected in the February 2022 sampling event were also analyzed for MW-18R2 and all NC Appendix II were analyzed for MW-19R per the AMWP. Surface water samples were analyzed for NC Appendix 1. Surface water monitoring location, SW-5, was also analyzed for 1,4-dioxane. The samples were received at the laboratory on January 19, 2023 in good condition and properly preserved. 3.0 LABORATORY AND FIELD QA/QC A field blank was collected by WSP personnel as part of the January 2023 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. Eurofins 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 WSP (included in Appendix B). The constituents, 2-Butanone (MEK) and acetone, were detected in the trip blank at 4.2 ug/L (J) and 42 ug/L respectively. Based on an analysis of the detections of 2-butanone and acetone in samples collected from MW-18R2 are considered blank -qualified. Additionally, carbon disulfide, cis-1,2- dichloroethene, trans- 1,2-dichloroethene, and isophorone were detected in the method blank associated with samples collected from MW-19R. The detections of these compounds in samples collected from MW-19R are also considered blank -qualified. Methylene chloride, a common laboratory contaminant, was detected in samples collected from MW-19R at an estimated concentration of 0.23 ug/L (J). Since this compound was not detected in laboratory blanks this detection was not further qualified. 4.0 DATA EVALUATION The results of the data evaluations are presented in the following sections. A summary of the analytical results and field parameters for groundwater samples collected at the MSW landfill are included as Table 4 and Table 5. A summary of the analytical results and field parameters for groundwater samples collected at the C&D landfill are included as Table 6 and Table 7. Summaries of surface water analytical results and field parameters are included as Table 8 and Table 9, and leachate analytical results and field parameter are summarized in Table 10. The complete NN%%I July 6, 2023 GL21456818.001 certificates -of -analysis, chain -of -custodies, and laboratory data review associated with the January 2023 sampling event and the April 2023 verification resampling event are included in Appendix B. 4.1 North Carolina Groundwater and Surface Water Quality Standard Comparisons 4.1.1 MSW Facility Three (3) NC Appendix I listed inorganic constituents (cobalt, chromium, and vanadium) were detected at concentrations above their respective groundwater standards (i.e., NC 2L Standards) in samples collected from one or more downgradient monitoring locations at the MSW landfill during this sampling event. Cobalt was detected in samples collected from MW-20, MW-28R, and the French Drain at estimated concentrations above the NC 2L Standard. Similarly, vanadium was detected in samples collected from MW-25 and MW-27 at estimated concentrations above the NC 2L Standard. As cobalt and vanadium were detected at estimated (i.e., non -quantifiable) concentrations below the method reporting limits, per 15A NCAC 02L .0202 (b)(1), no regulatory actions are required for estimated values below the reporting limits (a.k.a. PQLs) that are above groundwater standards. Chromium and vanadium were also detected at quantifiable concentrations above their respective NC 2L Standards in samples collected from the French Drain. Verification samples were collected and analyzed for vanadium during the April 2023 resampling event. The concentration of vanadium was not verified during the resampling event. Chromium will be verified during the next sampling event, tentatively scheduled for July 2023. One (1) NC Appendix I listed organic constituent (tetrachloroethene) was detected at a quantifiable concentration of 1.0 ug/L in samples collected from MW-7 during the January 2023 monitoring event. Verification samples collected from MW-7 during the April 2023 resampling event confirmed the concentration of tetrachloroethene. In accordance with 15A NCAC 13B .1634, the County will submit an AMWP to further evaluate the detections of tetrachloroethene in samples collected from MW-7. 4.1.2 C&D Facility Three (3) inorganic constituents (cobalt, iron, and manganese) were detected at quantifiable concentrations above their respective NC 2L Standards in samples collected from MW-18R2 during this monitoring event. The indicator parameters sulfate and total dissolved solids (TDS) were also detected above their respective NC 2L Standards during this event in samples collected from the downgradient monitoring well, MW-18R2. One (1) NC Appendix I listed organic constituent (benzene) was detected in the samples collected from MW-18R2 and MW-19R at concentrations above the NC 2L Standard during this sampling event. Per the approved AMWP, semi -volatile organic compounds were also analyzed in samples collected form MW-19R during the January 2023 monitoring event. The semi -volatile organic compound, heptachlor epoxide, was detected at an estimated concentration above the NC 2L Standard during the January 2023 sampling event. Verification samples were collected for heptachlor epoxide during the April 2023 resampling event. The compound, heptachlor epoxide, was detected at a quantifiable concentration above the NC 2L Standard during the verification resampling event. This compound, heptachlor epoxide, as well as the NC Appendix II listed constituents isophorone, 4,4-DDD, and sulfide, which were detected at estimated concentrations during the January 2023 sampling event will be analyzed as detects for samples collected from MW-19R during future sampling events. NN%%I July 6, 2023 GL21456818.001 The compound, 1,4-dioxane, was also analyzed for samples collected from the C&D landfill, per the May 30, 2018 memorandum, during the January 2023 sampling event. During the January 2023 monitoring event, the compound, 1,4-dioxane, was observed in samples collected from MW-18R2 and MW-19R at concentrations which exceeded the NC 2L Standard. In general, the concentrations of 1,4-dioxane were consistent with recent concentrations observed at these locations. It should be noted that sampling for the compound, 1,4-dioxane, is not currently required by rule and is not included as part of the facility's approved WQMP. 4.1.3 Surface Water One (1) inorganic constituent, copper, was detected above the chronic but below the acute surface water standard in samples collected from upstream monitoring point, SW-1, during the January 2023 sampling event. No other inorganic or organic constituents were detected in samples collected from surface water sampling locations above the surface water standards during this sampling event. 5.0 CONCLUSIONS Based on these results and in response to the detection of tetrachloroethene in samples collected from MW-7, Rowan County Environmental Services will submit an AMWP or ASD as outlined in Title 15A NCAC 13B .1634 for the MSW landfill. Per the current approved AMWP submitted to NC DEQ for the closed C&D landfill, assessment monitoring will continue at monitoring well MW-18R2 for NC Appendix I listed constituents and 1,4-dioxane. Additionally, monitoring well MW-19R will continue to be monitored in accordance with the approved AMWP addendum during the next sampling event. 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. 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 NN%%I July 6, 2023 Signature Page Sincerely, WSP USA Inc. Darren Cox Benjamin Draper, PG, PMP Associate Consultant, Environmental Scientist Assistant Vice President, Geologist GL21456818.001 July 6, 2023 GL21456818.001 Tables %NCI) June 2023 Page 1 of 2 Project No. GL21456818.001 Table 1 Summary of Historical Static Groundwater Elevation Data Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Well ID MW-1 MW-6 MW-7 MW-9 MW-11 MW-12 MW-13 MW-16 MW-17 MW-18R MW-18R2 MW-19 MW-19R MW-20 MW-23 MW-23A TOC Elevation 717.50 668.15 663.14 738.13 683.27 685.88 696.33 752.69 755.36 661.39 646.24 653.45 647.55 717.00 697.25 696.91 (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 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 -- 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 08/25/17 <694.52 >22.98 <694.52 -- <694.52 -- <694.52 -- <694.52 -- <694.52 -- <694.52 -- <694.52 -- <694.52 -- -- -- -- -- -- -- -- -- 682.09 34.91 NA -- NA -- 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 08/10/20 699.20 18.30 662.41 5.74 647.19 15.95 713.29 24.84 675.17 8.10 678.74 7.14 682.68 13.65 707.93 44.76 707.91 47.45 643.93 17.46 -- -- 644.21 9.24 -- -- 685.97 31.03 665.94 31.31 665.90 31.01 01 /26/21 703.89 13.61 663.39 4.76 648.27 14.87 716.08 22.05 675.53 7.74 679.68 6.20 683.13 13.20 708.09 44.60 707.45 47.91 645.28 16.11 -- -- 645.05 8.40 -- -- 684.85 32.15 665.80 31.45 665.73 31.18 08/24/21 697.57 19.93 661.81 6.34 647.34 15.80 710.97 27.16 674.88 8.39 678.53 7.35 682.55 13.78 707.88 44.81 706.56 48.80 643.49 17.90 637.32 8.92 644.14 9.31 637.01 10.54 685.92 31.08 664.70 32.55 664.76 32.15 02/09/22 696.83 20.67 661.37 6.78 646.51 16.63 707.85 30.28 675.17 8.10 678.98 6.90 682.33 14.00 706.21 46.48 705.66 49.70 643.76 17.63 637.45 8.79 644.93 8.52 637.50 10.05 683.55 33.45 663.40 33.85 663.41 33.50 08/15/22 695.00 22.50 659.05 9.10 645.42 17.72 707.61 30.52 674.67 8.60 677.77 8.11 681.74 14.59 705.68 47.01 706.88 48.48 642.17 19.22 636.69 9.55 642.94 10.51 636.52 11.03 682.01 34.99 663.74 33.51 663.73 33.18 01 /17/23 701.15 16.35 661.40 6.75 647.79 15.35 710.18 27.95 675.41 7.86 679.03 6.85 682.20 14.13 705.20 47.49 706.21 49.15 645.94 15.45 637.74 8.50 645.35 8.10 637.75 9.80 683.05 33.95 664.11 33.14 664.11 32.80 MEAN 697.99 19.51 660.45 7.70 646.62 16.46 707.69 30.44 674.80 8.47 678.58 7.30 682.14 14.19 705.30 47.39 705.93 49.43 642.86 18.53 637.39 8.86 643.26 10.19 637.26 10.30 685.00 32.00 664.42 32.83 664.27 32.64 MAXIMUM 704.67 24.80 666.00 11.00 649.45 20.35 716.08 36.36 677.34 10.52 682.68 9.91 685.13 15.07 709.41 50.38 707.99 52.48 646.92 21.60 637.45 8.92 646.50 13.12 637.50 10.54 687.85 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 22.05 672.75 5.93 675.97 3.20 681.26 11.20 702.31 43.28 702.88 47.37 639.79 14.47 637.32 8.79 640.33 6.95 637.01 10.05 681.68 29.15 662.71 31.28 661.70 30.92 Notes: /-\ LTA 69�_1�'T:IR- LTA [�1i�.Y� W=- I 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 was installed 7-11-2017. MW-18R2 and MW-19R were installed in May 2021 as replacement wells for MW-18R and MW-19, respectively. MW-29A, MW-30, MW-31, MW-32, MW-32A, MW-33, MW-33A, MW-34, and MW-34A are related to the Phase V expansion. https://vvsponlinenam-my.sharepoint.com/personal/benjamin_draper_wsp_com/Documents/Desktop/Rowan Active Tables January 2023 June 2023 Page 2 of 2 Project No. GL21456818.001 Table 1 Summary of Historical Static Groundwater Elevation Data Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Well ID MW-24R MW-25 MW-26 MW-27 MW-27A MW-28 MW-28R MW-29A MW-30 MW-31 MW-32 MW-32A MW-34 MW-34A TOC Elevation 717.10 707.46 697.30 663.90 664.02 682.06 685.26 660.87 656.15 670.12 666.16 665.70 704.75 704.61 (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 NA -- NA -- NA -- NA -- NA -- NA -- N I -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 05/16/05 NA -- NA -- NA -- NA -- NA -- NA -- NI -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 12/30/05 NA -- NA -- NA -- NA -- NA -- NA -- N I -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 09/25/06 NA -- NA -- NA -- NA -- NA -- NA -- N I -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 01 /30/07 NA -- NA -- NA -- NA -- NA -- NA -- N I -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 07/11 /07 NA -- NA -- NA -- NA -- NA -- NA -- N I -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 08/06/07 NA -- NA -- NA -- NA -- NA -- NA -- N I -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 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 -- N I -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 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 -- N I -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 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 N 1 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 -- -- -- -- -- -- -- -- -- -- -- -- -- -- 07/24/17 681.00 36.50 631.27 36.88 626.78 36.36 729.22 8.91 674.09 9.18 663.42 22.46 661.65 23.61 -- -- -- -- -- -- -- -- -- -- -- -- -- -- 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 -- -- -- -- -- -- -- -- -- -- -- -- -- -- 08/11 /20 682.75 34.35 673.11 34.35 662.91 34.39 655.95 7.95 655.72 8.30 659.69 22.37 663.03 22.23 -- -- -- -- -- -- -- -- -- -- -- -- -- -- 01 /26/21 683.15 33.95 673.62 33.84 663.32 33.98 656.91 6.99 656.71 7.31 659.91 22.15 663.48 21.78 -- -- -- -- -- -- -- -- -- -- -- -- -- -- 08/24/21 683.21 33.89 673.42 34.04 663.00 34.30 655.52 8.38 655.32 8.70 658.25 23.81 662.42 22.84 -- -- -- -- -- -- -- -- -- -- -- -- -- -- 02/09/22 682.65 34.45 670.17 37.29 661.40 35.90 655.82 8.08 655.52 8.50 657.81 24.25 661.26 24.00 -- -- -- -- -- -- -- -- -- -- -- -- -- -- 08/15/22 682.05 35.05 669.35 38.11 661.49 35.81 655.00 8.90 654.69 9.33 657.93 24.13 661.50 23.76 645.01 15.86 641.46 14.69 653.97 16.15 656.42 9.74 642.50 23.20 667.13 37.62 666.99 37.62 01 /17/23 681.77 35.33 669.29 38.17 662.76 34.54 656.44 7.46 656.92 7.10 658.88 23.18 662.28 22.98 647.16 13.71 644.41 11.74 657.18 12.94 658.80 7.36 658.21 7.49 667.75 37.00 666.80 37.81 MEAN 681.61 35.71 654.17 35.60 645.76 35.27 690.97 8.28 664.61 8.58 660.63 23.25 662.10 23.26 646.09 14.79 642.94 13.22 655.58 14.55 657.61 8.55 650.36 15.35 667.44 37.31 666.90 37.72 MAXIMUM 683.21 36.86 673.62 38.17 663.32 37.28 730.23 9.40 675.07 9.73 665.43 24.68 663.48 24.68 647.16 15.86 644.41 14.69 657.18 16.15 658.80 9.74 658.21 23.20 667.75 37.62 666.99 37.81 MINIMUM 680.34 33.89 630.63 31.59 626.14 32.09 654.88 6.92 654.67 7.10 657.81 20.45 661.01 20.45 645.01 13.71 641.46 11.74 653.97 12.94 656.42 7.36 642.50 7.49 667.13 37.00 666.80 37.62 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. MW-18R2 and MW-19R were installed in May 2021 as replacement wells for MW-18R and MW-19, respectively. MW-29A, MW-30, MW-31, MW-32, MW-32A, MW-33, MW-33A, MW-34, and MW-34A are related to the Phase V expansion. https://vvsponlinenam-my.sharepoint.com/personal/benjamin_draper_wsp_com/Documents/Desktop/Rowan Active Tables January 2023 June 2023 Page 1 of 1 Project No. GI-21456818.001 Table 2 Summary of Estimated Horizontal Flow Velocities Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit #80-03 January 2023 Gradient Calculation Gradient Segment Gradient Segment Horizontal Gradient Effective Porosity Hydraulic Velocity (Vgw, Segment 9 Flow Direction Length feet 9 (feet) (feet) Elevations feet i feet (, ) n (e) Conductivity (K, feet/ ear Y ) cm/sec) 700------------ i SW 2949 ------------ 0.0203 0.26 0.002 162 64 700 %2 SSW 1720 ----------- 0.0233 0.26 0.002 185 660 700------------ i 3 SSW 960 ------------ 0.0625 0.26 0.002 497 64 Notes: Horizontal velocities based on the modified Darcy equation Vgw = 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. 11�I� https://wsponiinenam-my.sharepoint.com/personal/benjamin_draper_wsp_com/Documents/Desktop/Rowan Active Tables January 2023 June 2023 Page 1 of 1 Project No. GL21456818.001 Table 3 Summary of Monitoring Well Construction Information Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Well Identification Northing Easting Date of Construction Ground Surface Elevation (ft AMSL) TOC Elevation (ft AMSL) Well Depth (ft bgs) Well Diameter (inches) Screened Interval (ft AMSL) Geology of Screened Interval Well Type MW-1 733038.150 1536611.820 - 715.00 717.50 27.0 2 690.50 - 700.50 PWR Compliance Monitoring Point MW-6 732034.900 1538418.990 - 665.55 668.15 53.7 2 614.45 - 619.45 - Water Level Only MW-7 731108.570 1538340.330 - 660.60 663.14 28.5 2 634.64 - 644.64 - Compliance Monitoring Point MW-9 733960.050 1536844.420 - 698.63 738.13 39.5 2 698.63 - 708.63 - Compliance Monitoring Point MW-11 732876.620 1538285.500 - 680.94 683.27 23.9 2 659.32 - 669.32 - Compliance Monitoring Point MW-12 733113.180 1538299.110 - 682.94 685.88 22.6 2 663.28 - 673.28 - Compliance Monitoring Point MW-13 733395.180 1538303.870 - 694.31 696.33 24.5 2 671.80 - 681.80 - Compliance Monitoring Point MW-16 734292.090 1539006.790 - 750.50 752.69 56.7 2 695.99 - 705.99 - Compliance Monitoring Point MW-17 733886.300 1539992.750 - 752.42 755.36 55.0 2 697.42 - 712.42 - Compliance Monitoring Point MW-18R 732809.770 1540067.640 07/24/07 658.30 661.39 30.0 2 628.30 - 643.30 Saprolite/PWR Water Level Only MW-18R2 732597.193 1540164.302 05/13/21 643.55 646.24 22.0 2 623.55 - 633.55 Sand/TWR Compliance Monitoring Point MW-19 732908.080 1540348.550 - 650.47 653.45 20.0 2 630.47 - 645.47 - Water Level Only MW-19R 732819.260 1540426.953 05/13/21 644.79 647.55 22.0 2 624.79 - 634.79 Sand/TWR Compliance Monitoring Point MW-20 732537.540 1536619.710 04/05/05 713.90 717.00 33.0 2 680.9 - 695.9 Saprolite/PWR Compliance Monitoring Point MW-23 732183.590 1537990.800 04/08/05 694.29 697.25 38.5 2 655.79 - 670.79 Saprolite Compliance Monitoring Point MW-23A 732173.300 1537990.800 04/11/05 693.82 696.91 68.5 2 625.32 - 640.32 PWR Compliance Monitoring Point MW-24R 732801.790 1537954.020 04/12/11 714.39 717.10 43.6 2 686.39 - 671.39 Saprolite/PWR Compliance Monitoring Point MW-25 731757.270 1536603.200 04/15/11 704.98 707.46 40.6 2 679.42 - 664.42 - Compliance Monitoring Point MW-26 731382.040 1537383.590 04/21/11 694.80 697.30 38.9 2 670.88 - 655.88 - Compliance Monitoring Point MW-27 731358.390 1538076.450 04/26/11 661.46 663.90 18.5 2 657.96 - 642.96 - Compliance Monitoring Point MW-27A 731350.620 1538084.390 04/25/11 661.27 664.02 64.3 2 602.27 - 597.27 - Water Level Only MW-28 731753.260 1538097.330 04/26/11 679.23 682.03 26.2 2 668.02 - 653.02 - Water Level Only MW-28R 731882.070 1538013.180 07/11/17 683.04 685.26 35.3 2 666.04 - 651.04 - Compliance Monitoring Point MW-29A 731115.058 1538308.155 09/28/21 658.06 660.87 85.0 2 573.06 - 583.06 Bedrock Water Level Only MW-30 730628.777 1538107.637 09/20/21 653.1 656.15 22.0 2 631.1 - 646.1 Saprolite Water Level Only MW-31 730712.365 1537356.329 09/22/21 667.69 670.12 20.0 2 647.69 - 662.69 Saprolite Water Level Only MW-32 730770.089 1537028.151 09/22/21 663.69 666.16 22.0 2 641.69 - 656.69 Saprolite Water Level Only MW-32A 730770.089 1537029.151 09/21/21 663.19 665.70 95.0 2 568.19 - 573.19 Saprolite Water Level Only MW-33 731021.221 1536813.827 09/23/21 680.64 683.19 30.0 2 650.64 - 665.64 Saprolite Water Level Only MW-34 731473.923 1536641.246 10/01/21 702.06 704.75 45.0 2 657.06 - 672.06 Saprolite Water Level Only MW-34A 731473.923 1536641.246 09/23/21 701.83 704.61 90.0 2 661.83 - 616.83 Saprolite Water Level Only Notes: ft AMSL = feet above mean sea level ft bgs = feet below ground surface TOC = top of well casing elevation PWR = partially weathered rock TWR = transitionally weathered rock Monitoring wells MW-6, MW-18R, MW-19, MW-23A, MW-27A, and MW-28 are monitored for water levels only. Monitoring wells MW-29A, MW-30, MW-31, MW-32, MW-32A, MW-33, MW-33A, MW-34, and MW-34A are related to the Phase V expansion and currently monitored for water levels only. 11�I� https://wsponlinenam-my.sharepoint.com/personal/benjamin_draper_wsp_com/Documents/Desktop/Rowan Active Tables January 2023 June 2023 Page 1 of 20 Project No. GL21456818.001 Table 4 Summary of Detected Constituents in Groundwater at the MSW 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 -- -- -- N D -- ND ND N D -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- NC 2 L= 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 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/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 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 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 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 -- -- -- -- -- -- -- -- -- -- -- -- -- -- 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 -- -- 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 0.220 -- 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 0.220 -- 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 0.220 -- 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 0.220 -- 6 ND ND ND ND ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 01/18/17 0.370 -- 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 0.370 -- 6 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 11 /01 /17 0.370 -- 6 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND Dry ND ug/L 02/20/18 0.370 -- 6 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 08/08/18 1.850 5.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND Dry ND ug/L 01/15/19 1.850 5.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 08/14/19 0.740 2.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND ND ND ug/L 01/13/20 0.740 2.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 08/11/20 0.740 2.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND ND ND ug/L 01/26/21 0.740 2.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND ND ND ug/L 08/25/21 0.740 2.0 -- ND ND ND -- ND ND ND ND ND -- -- ND -- -- ND ND ND ND -- ND ND ND ug/L 02/09/22 0.740 2.0 -- ND ND ND -- ND ND -- ND ND -- -- ND -- -- ND ND ND ND -- ND ND ND ug/L 08/15/22 0.740 2.00 -- ND ND ND -- ND ND ND ND ND -- -- ND -- -- ND ND ND ND -- ND ND ND ug/L 01/17/23 0.34 5.0 -- ND ND ND -- ND ND ND ND ND -- -- ND -- -- ND ND ND ND -- ND ND ND https://wsponlinenam-my.sharepoint.com/personal/benjamin_draper_wsp_com/Documents/Desktop/Rowan Active Tables January 2023 June 2023 Page 2 of 20 Project No. GL21456818.001 Table 4 Summary of Detected Constituents in Groundwater at the MSW 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 -- -- -- N D -- ND ND N D -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- NC 2 L = 10 ug/L ug/L 07/01 /94 -- -- -- N D -- ND ND N D -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- EPA MCL = 10 ug/L ug/L 10/01/94 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 01 /01 /95 -- -- -- N D -- ND ND N D -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /95 -- -- -- N D -- ND ND N D -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /95 -- -- -- N D -- ND ND 27 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /96 -- -- -- N D -- ND ND N D -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /96 -- -- -- N D -- ND ND N D -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /97 -- -- -- N D -- ND ND N D -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /97 -- -- -- N D ND ND ND N D ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /98 -- -- -- N D ND ND ND N D ND ND 11 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /98 -- -- -- N D ND ND ND N D ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /99 -- -- -- N D ND ND ND N D ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 09/01 /99 -- -- -- N D ND ND ND N D N D ND 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /00 -- -- -- N D ND ND ND 15 18 ND 21 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 09/01 /00 -- -- -- N D ND 12 ND 14 36 ND 63 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /01 -- -- -- N D ND ND ND N D 14 ND 24 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /01 -- -- -- N D ND 64 ND 31 30 ND 100 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /02 -- -- -- N D ND ND ND N D ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 11 /01 /02 -- -- -- N D 12 ND ND 11 ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /03 -- -- -- N D ND ND ND N D ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /03 -- -- -- N D ND ND ND N D ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /04 -- -- -- N D ND ND ND N D ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 11 /01 /04 -- -- -- N D ND ND ND N D ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /05 -- -- -- N D 13 ND ND N D ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 11 /04/05 -- -- -- -- -- -- -- -- -- -- -- N D N D ND ND N D ND -- -- -- -- -- -- -- -- ug/L 12/12/05 -- -- -- -- -- -- -- -- -- -- -- ND N D 31 ND N D ND -- -- -- -- -- -- -- -- ug/L 12/13/05 -- -- -- -- -- -- -- -- -- -- -- ND N D ND ND N D ND -- -- -- -- -- -- -- -- ug/L 12/22/05 -- -- -- -- -- -- -- -- -- -- -- ND N D 29 ND N D 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 N D 3.7 B 2.3 B ND 3.9 B ND ND 2.5 B ND N D ND 2.2 B N D 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 5.40 -- 10 N D ND ND -- N D ND ND ND N D -- -- ND N D -- ND -- -- -- -- -- -- ND ug/L 07/23/15 6.80 -- 10 ND ND ND -- ND ND ND ND Dry -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 01/12/16 6.80 -- 10 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 08/01/16 6.80 -- 10 ND ND ND ND ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 01/18/17 6.80 -- 10 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 07/24/17 6.80 -- 10 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 11/01/17 6.80 -- 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND Dry ND ug/L 02/20/18 6.80 -- 10 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 08/08/18 7.60 10.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND Dry ND ug/L 01/15/19 7.60 10.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 08/14/19 7.60 10.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND ND ND ug/L 01/13/20 7.60 10.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 08/11/20 7.60 10.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND ND ND ug/L 01/26/21 7.60 10.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND ND ND ug/L 08/25/21 7.60 10.0 -- ND ND ND -- ND ND ND ND ND -- -- ND -- -- ND ND ND ND -- ND ND ND ug/L 02/09/22 7.60 10.0 -- ND ND ND -- ND ND ND ND ND -- -- ND -- -- ND ND ND ND -- ND ND ND ug/L 08/15/22 7.60 10.0 -- ND ND ND -- ND ND ND ND ND -- -- ND -- -- ND ND ND ND -- ND ND ND ug/L 01/17/23 6.4 20 -- ND ND ND -- ND ND ND ND ND -- -- ND -- -- ND ND ND ND -- ND ND ND https://wsponlinenam-my.sharepoint.com/personal/benjamin_draper_wsp_com/Documents/Desktop/Rowan Active Tables January 2023 June 2023 Page 3 of 20 Project No. GL21456818.001 Table 4 Summary of Detected Constituents in Groundwater at the MSW 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 -- -- -- N D -- 100 ND 200 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- NC 2 L = 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 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/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 -- -- -- -- -- -- -- -- -- -- -- -- -- -- 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 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 1.00 -- 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 1.00 -- 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 1.00 -- 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 1.00 -- 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 1.00 -- 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 1.00 -- 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 1.00 -- 100 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 229 Dry ND ug/L 02/20/18 1.00 -- 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 1.10 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 1.10 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 1.10 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 ug/L 01 /13/20 1.10 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 ug/L 08/11/20 1.10 10.0 -- 67.6 16.6 102 -- 66.1 52.5 53.3 102 79.1 -- -- 249 21.7 -- 57.2 27.8 74.4 82.9 -- 395 33.0 ND ug/L 01 /26/21 1.10 10.0 -- 64.8 15.4 98.6 -- 64.3 40.8 55.8 87.0 81.7 -- -- 207 26.3 -- 57.2 30.0 78.8 82.2 -- 427 54.0 ND ug/L 08/25/21 1.10 10.0 -- 60.2 14.1 96.4 -- 64.0 38.3 53.9 92.5 81.5 -- -- 198 -- -- 56.5 29.5 73.6 58.5 -- 379 52.5 ND ug/L 02/09/22 1.10 10.0 -- 62.7 13.5 96.4 -- 69.3 43.4 56.3 80.9 88.4 -- -- 197 -- -- 60.1 35.5 50.3 69.5 -- 302 33.4 ND ug/L 08/15/22 1.10 10.0 -- 61.8 14.3 88.3 -- 63.9 37.9 47.8 93.9 84.5 -- -- 180 -- -- 57.4 32.2 45.9 65.2 -- 377 30.0 ND ug/L 01/17/23 4.4 10 -- 60 14 88 -- 62 40 47 61 77 -- -- 180 -- -- 54 33 60 65 -- 290 120 ND https://wsponlinenam-my.sharepoint.com/personal/benjamin_draper_wsp_com/Documents/Desktop/Rowan Active Tables January 2023 June 2023 Page 4 of 20 Project No. GL21456818.001 Table 4 Summary of Detected Constituents in Groundwater at the MSW 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 -- -- -- N D -- ND ND N D -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- NC 2 L = 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 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/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 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /03 -- -- -- ND ND ND ND 2 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 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 0.10 -- 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 0.10 -- 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 0.10 -- 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 0.10 -- 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 0.10 -- 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 0.10 -- 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 0.10 -- 1 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 0.238 Dry N D ug/L 02/20/18 0.10 -- 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 ug/L 01/13/20 0.16 1.00 -- ND ND 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 Dry ND ug/L 08/11/20 0.160 1.00 -- ND ND ND -- 0.191 J ND 0.172 J ND ND -- -- 0.172 J ND -- 0.225 J ND 0.294 J 0.315 J -- 0.681 J ND ND ug/L 01 /26/21 0.160 1.00 -- ND ND ND -- 0.181 J ND 0.252 J ND 0.251 J -- -- 0.257 J ND -- 0.218 J ND 0.276 J 0.247 J -- 0.665 J ND ND ug/L 08/25/21 0.160 1.00 -- ND ND ND -- 0.199 J ND 0.244 J ND 0.271 J -- -- 0.280 J -- -- 0.278 J ND 0.275 J 0.426 J -- 0.614 J ND ND ug/L 02/09/22 0.160 1.00 -- ND ND ND -- 0.311 J ND 0.248 J ND 0.278 J -- -- 0.271 J -- -- 0.280 J ND 0.191 J 0.981 J -- 0.610 J ND ND ug/L 08/15/22 0.160 1.00 -- ND ND ND -- 0.268 J ND 0.256 J ND 0.223 J -- -- 0.283 J -- -- 0.256 J ND 0.265 J 0.603 J -- 0.677 J ND ND ug/L 01 /17/23 0.30 4.0 -- ND ND ND -- 0.47 J 0.30 J ND 0.31 J 0.53 J -- -- 0.41 J -- -- 0.47 J ND 0.52 J 0.77 J -- 0.78 J 0.87 J ND https://wsponlinenam-my.sharepoint.com/personal/benjamin_draper_wsp_com/Documents/Desktop/Rowan Active Tables January 2023 June 2023 Page 5 of 20 Project No. GL21456818.001 Table 4 Summary of Detected Constituents in Groundwater at the MSW 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 -- -- -- N D -- ND ND N D -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- NC 2 L = 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 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /96 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /97 -- -- -- ND -- ND 1 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 -- -- -- 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 -- -- -- -- -- -- -- -- -- -- -- -- -- -- 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 -- -- -- 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 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 11 /01 /04 -- -- -- 1 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 -- -- 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 0.360 -- 1 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND -- -- -- -- -- -- ND ug/L 07/23/15 0.360 -- 1 ND ND ND -- ND ND ND ND Dry -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 01/12/16 0.360 -- 1 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 08/01/16 0.360 -- 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 0.360 -- 1 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 07/24/17 0.360 -- 1 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 11/01/17 0.360 -- 1 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND Dry ND ug/L 02/20/18 0.360 -- 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 0.360 1.00 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 01/15/19 0.360 1.00 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 08/14/19 0.360 1.00 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND ND ND ug/L 01/13/20 0.360 1.00 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 08/11/20 0.360 1.00 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND ND ND ug/L 01/26/21 0.360 1.00 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND ND ND ug/L 08/25/21 0.360 1.00 -- ND ND ND -- ND ND ND ND ND -- -- ND -- -- ND ND ND ND -- ND ND ND ug/L 02/09/22 0.360 1.00 -- ND ND ND -- ND ND ND ND ND -- -- ND -- -- ND ND ND ND -- ND ND ND ug/L 08/15/22 0.360 1.00 -- ND ND ND -- ND ND ND ND 0.422 J -- -- ND -- -- ND ND ND ND -- ND ND ND ug/L 01/17/23 0.44 5.0 -- ND ND ND -- ND ND ND ND ND -- -- ND -- -- ND ND ND ND -- ND ND ND https://wsponlinenam-my.sharepoint.com/personal/benjamin_draper_wsp_com/Documents/Desktop/Rowan Active Tables January 2023 June 2023 Page 6 of 20 Project No. GL21456818.001 Table 4 Summary of Detected Constituents in Groundwater at the MSW 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 ug/L 10/01 /93 -- -- -- N D -- ND ND N D -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- NC 2 L = 10 ug/L ug/L 07/01 /94 -- -- -- N D -- ND ND N D -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- EPA MCL = 100 ug/L ug/L 10/01 /94 -- -- -- N D -- ND ND N D -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 01 /01 /95 -- -- -- N D -- ND ND N D -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /95 -- -- -- N D -- ND ND N D -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /95 -- -- -- N D -- ND ND 51 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /96 -- -- -- N D -- ND ND 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /96 -- -- -- 20.4 -- ND ND N D -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 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 -- -- -- N D ND ND ND N D 11 19 16 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /99 -- -- -- N D ND ND ND N D ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 09/01 /99 -- -- -- 15 ND ND ND N D 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 -- -- -- N D 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 -- -- -- N D ND ND ND N D ND ND 11 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 11 /01 /02 -- -- -- N D ND ND ND N D ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /03 -- -- -- N D ND ND ND N D ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /03 -- -- -- N D ND ND ND N D ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /04 -- -- -- N D ND ND ND N D ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 11 /01 /04 -- -- -- 10 ND ND ND N D 12 ND 14 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 05/01 /05 -- -- -- N D ND ND ND N D ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 11 /04/05 -- -- -- -- -- -- -- -- -- -- -- N D N D ND ND N D 58 -- -- -- -- -- -- -- -- ug/L 12/12/05 -- -- -- -- -- -- -- -- -- -- -- ND N D 13 ND 10 55 -- -- -- -- -- -- -- -- ug/L 12/13/05 -- -- -- -- -- -- -- -- -- -- -- ND 15 ND ND N D 63 -- -- -- -- -- -- -- -- ug/L 12/22/05 -- -- -- -- -- -- -- -- -- -- -- ND N D ND ND N D ND -- -- -- -- -- -- -- -- ug/L 12/30/05 -- -- 10 N D ND 11 ND 16 ND ND ND ND N D ND ND N D ND -- -- -- -- -- -- -- ND ug/L 09/26/06 -- -- 10 N D ND ND ND N D ND ND ND ND N D ND ND N D 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 N D 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 1.40 -- 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 1.40 -- 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 1.40 -- 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 1.40 -- 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 1.40 -- 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 1.40 -- 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 1.40 -- 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND Dry ND ug/L 02/20/18 1.40 -- 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 1.40 10.0 -- 8.10 B ND ND -- 3.86 B ND ND 1.78 B ND -- -- 2.00 B N D -- 1.87 B 3.34 B 1.89 B 5.67 B -- N D Dry 1.66 J ug/L 01/15/19 1.40 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 1.40 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 ug/L 01/13/20 1.40 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 ug/L 08/11 /20 1.40 10.0 -- 3.98 J 1.48 J 1.59 J -- 5.75 J 3.00 J 1.72 J 4.42 J 1.83 J -- -- 4.54 J 1.94 J -- ND 5.65 J ND 1.88 J -- 1.41 J ND ND ug/L 01/26/21 1.40 10.0 -- 2.59 J ND ND -- 4.71 J ND ND 1.57 J ND -- -- 3.91 J 1.89 J -- 1.41 J 4.81 J ND ND -- ND ND ND ug/L 08/25/21 1.40 10.0 -- ND ND ND -- 4.02 J ND ND 2.45 J ND -- -- 3.60 J -- -- ND 4.29 J ND ND -- ND ND ND ug/L 02/09/22 1.40 10.0 -- 3.47 J ND ND -- 3.70 J ND ND 3.21 J 1.42 J -- -- 5.16 J -- -- ND 4.97 J ND ND -- ND ND ND ug/L 08/15/22 1.40 10.0 -- 2.18 J ND ND -- 3.77 J ND ND 2.40 J ND -- -- 3.18 J -- -- ND 3.70 J ND ND -- ND ND ND ug/L 01/17/23 1.1 10 -- 4.6 J ND ND -- 6.2 J 1.5 J 3.1 J 1.6 J 1.1 J -- -- 4.2 J -- -- 1.1 J 4.7 J 1.3 J 3.7 J -- ND 14 ND https://wsponlinenam-my.sharepoint.com/personal/benjamin_draper_wsp_com/Documents/Desktop/Rowan Active Tables January 2023 June 2023 Page 7 of 20 Project No. GL21456818.001 Table 4 Summary of Detected Constituents in Groundwater at the MSW 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 -- -- -- N D -- ND ND N D -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- NC 2 L = 1 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 -- 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 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/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 -- -- -- -- -- -- -- -- -- -- -- -- -- -- 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 -- -- -- -- -- -- -- -- -- -- -- 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 1.10 -- 10 ND ND 3.52 J -- ND ND ND ND 7.94 J -- -- ND 2.62 J -- ND -- -- -- -- -- -- ND ug/L 07/23/15 1.10 -- 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 1.10 -- 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 1.10 -- 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 1.10 -- 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 1.10 -- 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 1.10 -- 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 2.83 J Dry ND ug/L 02/20/18 1.10 -- 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 1.40 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 1.40 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 1.40 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 ug/L 01/13/20 1.40 10.0 -- ND ND 1.43 J -- ND ND ND ND 5.71 J -- -- ND ND -- ND ND ND ND -- 1.85 J Dry ND ug/L 08/11/20 1.40 10.0 -- ND ND 2.01 J -- ND ND ND ND 4.50 J -- -- ND ND -- ND ND ND ND -- 2.97 J ND ND ug/L 01/26/21 1.40 10.0 -- ND ND 1.59 J -- ND ND ND ND 4.38 J -- -- ND ND -- ND ND ND ND -- 4.11 J ND ND ug/L 08/25/21 1.40 10.0 -- ND ND ND -- ND ND ND ND 4.99 J -- -- ND -- -- ND ND ND ND -- 3.59 J 1.41 J ND ug/L 02/09/22 1.40 10.0 -- ND ND ND -- ND ND ND ND 5.63 J -- -- ND -- -- ND ND ND ND -- 2.58 J ND ND ug/L 08/15/22 1.40 10.0 -- ND ND 1.41 J -- ND ND ND ND 9.08 J -- -- 1.58 J -- -- ND ND ND ND -- 3.33 J ND ND ug/L 01/17/23 1.4 10 -- ND ND ND -- ND ND ND ND 8.7 J -- -- ND -- -- ND ND ND ND -- 1.8 J 3.5 J ND https://wsponlinenam-my.sharepoint.com/personal/benjamin_draper_wsp_com/Documents/Desktop/Rowan Active Tables January 2023 June 2023 Page 8 of 20 Project No. GL21456818.001 Table 4 Summary of Detected Constituents in Groundwater at the MSW 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 -- -- -- N D -- ND ND N D -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- NC 2 L = 1000 ug/L ug/L 07/01 /94 -- -- -- N D -- ND ND N D -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- EPA MCL = 1300 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 -- -- -- 20 -- ND 30 30 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 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 33 ND ND 39 15 140 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /98 -- -- -- 15 13 11 ND ND 26 31 61 -- -- -- -- -- -- -- -- -- -- -- -- -- -- 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 210 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 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 -- -- -- -- -- -- -- -- -- -- -- -- -- -- 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 -- -- 200 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- ND ug/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 1.60 -- 10 ND ND ND -- ND ND ND ND 5.92 J -- -- ND ND -- 2.98 J -- -- -- -- -- -- ND ug/L 07/23/15 1.60 -- 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 1.60 -- 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 1.60 -- 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 1.60 -- 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 1.60 -- 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 1.60 -- 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND Dry ND ug/L 02/20/18 1.60 -- 10 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 08/08/18 1.60 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 1.60 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 1.60 10.0 -- ND ND ND -- ND ND ND ND 2.11 B -- -- ND ND -- ND ND ND ND -- ND ND 2.38 J ug/L 01/13/20 1.60 10.0 -- ND ND 2.39 J -- ND ND ND ND 2.68 J -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 08/11/20 1.60 10.0 -- 2.12 B 2.34 B 2.81 B -- 2.06 B 2.25 B 1.93 B 2.30 B 6.60 B -- -- 2.04 B 3.68 B -- 2.61 B 2.49 B ND 1.64 B -- 1.72 B 3.49 B 1.95 J ug/L 01/26/21 1.60 10.0 -- 3.74 J ND 2.45 J -- ND ND ND 2.74 J 5.03 J -- -- ND ND -- 1.99 J ND 1.65 J ND -- ND 5.54 J ND ug/L 08/25/21 1.60 10.0 -- ND ND ND -- ND ND ND ND ND -- -- ND -- -- ND ND ND ND -- ND ND ND ug/L 02/09/22 1.60 10.0 -- ND ND 2.04 J -- ND ND ND ND 3.88 J -- -- ND -- -- ND ND ND ND -- ND 2.41 J ND ug/L 08/15/22 1.60 10.0 -- ND ND ND -- ND ND ND ND 2.72 J -- -- ND -- -- ND ND ND ND -- ND ND ND ug/L 01/17/23 3.2 20 -- ND ND ND -- ND ND ND ND 5.8 J -- -- ND -- -- ND ND ND ND -- ND 25 ND https://wsponlinenam-my.sharepoint.com/personal/benjamin_draper_wsp_com/Documents/Desktop/Rowan Active Tables January 2023 June 2023 Page 9 of 20 Project No. GL21456818.001 Table 4 Summary of Detected Constituents in Groundwater at the MSW 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 Lead ug/L 10/01 /93 -- -- -- N D -- ND ND N D -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- NC 2 L = 15 ug/L ug/L 07/01 /94 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- EPA MCL = 15 ug/O 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 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/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 -- -- -- -- -- -- -- -- -- -- -- -- -- -- 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 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 2.10 -- 10 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND -- -- -- -- -- -- ND ug/L 07/23/15 3.10 -- 10 ND ND ND -- ND ND ND ND Dry -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 01/12/16 3.10 -- 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 3.10 -- 10 ND ND ND ND ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 01/18/17 3.10 -- 10 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 07/24/17 3.10 -- 10 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 11/01/17 3.10 -- 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND Dry ND ug/L 02/20/18 3.10 -- 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 3.10 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 3.10 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 3.10 10.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND ND ND ug/L 01/13/20 3.10 10.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 08/11/20 3.10 10.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND ND ND ug/L 01/26/21 3.10 10.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND ND ND ug/L 08/25/21 3.10 10.0 -- ND ND ND -- ND ND ND ND ND -- -- ND -- -- ND ND ND ND -- ND 4.10 J ND ug/L 02/09/22 3.10 10.0 -- ND ND ND -- ND ND ND ND ND -- -- ND -- -- ND ND ND 5.38 J -- ND ND ND ug/L 08/15/22 3.10 10.0 -- ND ND ND -- ND ND ND ND ND -- -- ND -- -- ND ND ND ND -- ND ND ND ug/L 01/17/23 6.6 10 -- ND ND ND -- ND ND ND ND ND -- -- ND -- -- ND ND ND ND -- ND 12 ND https://wsponlinenam-my.sharepoint.com/personal/benjamin_draper_wsp_com/Documents/Desktop/Rowan Active Tables January 2023 June 2023 Page 10 of 20 Project No. GL21456818.001 Table 4 Summary of Detected Constituents in Groundwater at the MSW Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Upgradient MSW Wells Sidegradient and Downgradient MSW Wells SWS Reporting 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 Mercury, NC2L = 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 -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 11 /01 /17 0.17 -- 0.2 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND -- ND ug/L 08/08/18 0.15 0.200 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Dry ND Nickel ug/L 10/01 /93 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- NC 2 L = 100 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 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 -- -- -- -- -- -- -- -- -- -- -- -- -- -- 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 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 -- -- -- -- -- -- -- -- -- -- -- -- -- -- 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 -- -- 50 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- ND ug/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 1.80 -- 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 1.80 -- 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 1.80 -- 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 2.20 -- 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 2.20 -- 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 2.20 -- 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 2.20 -- 50 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND Dry ND ug/L 02/20/18 2.20 -- 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 2.20 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 2.20 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 2.20 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 ug/L 01/13/20 2.20 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 ug/L 08/11/20 2.20 10.0 -- 6.29 J ND 3.29 J -- ND ND ND ND 4.57 J -- -- 6.93 J ND -- ND ND ND ND -- ND ND ND ug/L 01/26/21 2.20 10.0 -- 7.92 J ND 2.97 J -- ND ND ND ND 5.70 J -- -- 7.32 J 2.29 J -- ND ND ND ND -- 3.09 J ND ND ug/L 08/25/21 2.20 10.0 -- 7.22 J 2.30 J 4.45 J -- ND ND ND ND 3.49 J -- -- 6.80 J -- -- ND ND ND ND -- ND ND ND ug/L 02/09/22 2.20 10.0 -- 5.96 J ND 3.82 J -- ND 2.45 J ND ND ND -- -- 10.8 -- -- ND ND ND ND -- ND ND ND ug/L 08/15/22 2.20 10.0 -- 5.69 J ND ND -- ND ND ND ND ND -- -- 7.23 J -- -- ND ND ND ND -- ND ND ND ug/L 01/17/23 3.3 40 -- 7.0 J ND ND -- ND ND ND ND 3.8 J -- -- 11 J -- -- ND ND ND 3.3 J -- 3.6 J 6.2 J ND https://wsponlinenam-my.sharepoint.com/personal/benjamin_draper_wsp_com/Documents/Desktop/Rowan Active Tables January 2023 June 2023 Page 11 of 20 Project No. GL21456818.001 Table 4 Summary of Detected Constituents in Groundwater at the MSW 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 -- -- -- N D -- ND ND N D -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- NC 2 L = 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 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 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 -- -- 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 5.00 -- 10 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND -- -- -- -- -- -- ND ug/L 07/23/15 5.00 -- 10 ND ND ND -- ND ND ND ND Dry -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 01/12/16 5.00 -- 10 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 08/01/16 6.20 -- 10 ND ND ND ND ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 01/18/17 6.20 -- 10 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 07/24/17 6.20 -- 10 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 11 /01 /17 6.20 -- 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND Dry ND ug/L 02/20/18 6.20 -- 10 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 08/08/18 6.20 10.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 01/15/19 6.20 10.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 08/14/19 6.20 10.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND ND ND ug/L 01/13/20 6.20 10.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 08/11/20 6.20 10.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND ND ND ug/L 01/26/21 6.20 10.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND ND ND ug/L 08/25/21 6.20 10.0 -- ND ND ND -- ND ND ND ND ND -- -- ND -- -- ND ND ND ND -- ND ND ND ug/L 02/09/22 6.20 10.0 -- ND ND ND -- ND ND ND ND ND -- -- ND -- -- ND ND ND ND -- ND ND ND ug/L 08/15/22 6.20 10.0 -- ND ND ND -- ND ND ND ND ND -- -- ND -- -- ND ND ND ND -- ND ND ND ug/L 01/17/23 10 20 -- ND ND ND -- ND ND ND ND ND -- -- ND -- -- ND ND ND ND -- ND ND ND https://wsponlinenam-my.sharepoint.com/personal/benjamin_draper_wsp_com/Documents/Desktop/Rowan Active Tables January 2023 June 2023 Page 12 of 20 Project No. GL21456818.001 Table 4 Summary of Detected Constituents in Groundwater at the MSW 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 1.90 -- 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 1.90 -- 10 -- -- -- -- -- -- -- -- ND -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 07/23/15 1.90 -- 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 1.90 -- 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 1.90 -- 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 1.90 -- 10 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND ND -- ND ND ug/L 07/24/17 1.90 -- 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 1.90 -- 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND Dry ND ug/L 02/20/18 1.90 -- 10 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 08/08/18 1.90 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 1.90 10.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 08/14/19 1.90 10.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND ND ND ug/L 01/13/20 1.90 10.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 08/11/20 1.90 10.0 -- ND ND ND -- ND ND ND ND ND -- -- ND 3.69 B -- 2.24 B 2.13 B ND ND -- ND ND 2.17 J ug/L 01/26/21 1.90 10.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND ND ND ug/L 08/25/21 1.90 10.0 -- ND 5.67 J ND -- ND ND ND ND ND -- -- ND -- -- 2.12 J ND ND ND -- ND ND ND ug/L 02/09/22 1.90 10.0 -- ND 2.15 J ND -- ND 3.29 J ND 2.87 J ND -- -- ND -- -- ND ND ND ND -- ND ND ND ug/L 08/15/22 1.90 10.0 -- ND ND ND -- ND ND ND ND ND -- -- ND -- -- ND ND ND ND -- ND ND ND ug/L 01/17/23 1.5 10 -- ND ND ND -- ND ND 4.5 J ND ND -- -- ND -- -- ND ND 1.7 J 2.2 J -- ND ND ND https://wsponlinenam-my.sharepoint.com/personal/benjamin_draper_wsp_com/Documents/Desktop/Rowan Active Tables January 2023 June 2023 Page 13 of 20 Project No. GL21456818.001 Table 4 Summary of Detected Constituents in Groundwater at the MSW 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 -- -- -- N D -- ND ND N D -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- NC 2 L = 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 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01 /97 -- -- -- ND -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/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 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 09/01 /99 -- -- -- ND -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/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 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/01 /02 -- -- -- ND -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/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 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 11 /01 /04 -- -- -- ND -- ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/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 0.110 -- 5.5 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND -- -- -- -- -- -- ND ug/L 07/23/15 0.110 -- 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 0.110 -- 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 0.110 -- 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 0.110 -- 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 0.110 -- 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 0.110 -- 5.5 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND Dry ND ug/L 02/20/18 0.110 -- 5.5 ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 08/08/18 0.550 5.00 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 01/15/19 0.550 5.00 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 08/14/19 0.220 2.00 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND ND ND ug/L 01/13/20 0.220 2.00 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND Dry ND ug/L 08/11/20 0.220 2.00 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND ND ND ug/L 01/26/21 0.220 2.00 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND ND ND ug/L 08/25/21 0.220 2.00 -- ND ND ND -- ND ND ND ND ND -- -- ND -- -- ND ND ND ND -- ND ND ND ug/L 02/09/22 0.0600 0.100 -- ND ND ND -- ND ND -- ND ND -- -- ND -- -- ND ND ND 0.0868 J -- 0.0719 J ND ND ug/L 08/15/22 0.220 2.00 -- ND ND ND -- ND ND ND ND ND -- -- ND -- -- ND ND ND ND -- ND ND ND ug/L 01/17/23 0.26 1.0 -- ND ND ND -- ND ND ND ND ND -- -- ND -- -- ND ND ND ND -- ND ND ND https://wsponlinenam-my.sharepoint.com/personal/benjamin_draper_wsp_com/Documents/Desktop/Rowan Active Tables January 2023 June 2023 Page 14 of 20 Project No. GL21456818.001 Table 4 Summary of Detected Constituents in Groundwater at the MSW 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 -- -- -- N D -- ND ND N D -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- NC 2 L = 7 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 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 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/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 -- -- -- -- -- -- -- -- -- -- -- -- -- -- 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 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 1.40 -- 25 2.83 J ND ND -- ND ND ND ND 3.12 J -- -- ND 14.9 J -- ND -- -- -- -- -- -- ND ug/L 07/23/15 1.40 -- 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 1.40 -- 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 1.40 -- 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 1.40 -- 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 1.40 -- 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 1.40 -- 25 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND Dry ND ug/L 02/20/18 1.40 -- 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 1.40 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 1.40 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 1.40 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 ug/L 01/13/20 1.40 10.0 -- 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 Dry ND ug/L 08/11/20 1.40 10.0 -- 2.44 J ND ND -- ND 3.62 J ND 2.39 J ND -- -- ND 5.08 J -- ND 7.97 J ND ND -- ND 5.58 J ND ug/L 01/26/21 1.40 10.0 -- 2.52 J ND ND -- ND ND ND 2.92 J ND -- -- ND 6.24 J -- ND 7.93 J ND ND -- ND 9.25 J ND ug/L 08/25/21 1.40 10.0 -- 3.14 J ND ND -- ND 1.70 J ND 4.29 J ND -- -- ND -- -- ND 7.13 J ND ND -- ND 14.0 ND (Verification Event) ug/L 10/08/21 1.40 10.0 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 7.19 J ND ug/L 02/09/22 1.40 10.0 -- 2.82 J ND ND -- ND ND ND 4.72 J ND -- -- ND -- -- ND 8.35 J ND 3.43 J -- ND 6.09 J ND ug/L 08/15/22 1.40 10.0 -- 3.85 J ND ND -- ND ND ND ND ND -- -- ND -- -- ND 8.06 J ND 2.72 J -- ND 6.94 J ND ug/L 01/17/23 1.0 10 -- 3.6 J 1.1 J ND -- 2.1 J 2.8 J 2.6 J 2.5 J 1.0 J -- -- ND -- -- 2.1 J 8.0 J 1.2 J 8.0 J -- ND 68 ND (Verification Event) ug/L 04/04/23 1.40 10.0 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 5.90 J ND https://wsponlinenam-my.sharepoint.com/personal/benjamin_draper_wsp_com/Documents/Desktop/Rowan Active Tables January 2023 June 2023 Page 15 of 20 Project No. GL21456818.001 Table 4 Summary of Detected Constituents in Groundwater at the MSW 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 N D -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 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 -- -- -- -- -- -- -- -- -- -- -- -- -- -- 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 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 3.80 -- 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 3.80 -- 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 3.80 -- 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 4.40 -- 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 4.40 -- 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 4.40 -- 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 4.40 -- 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND Dry ND ug/L 02/20/18 4.40 -- 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 4.40 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 4.40 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 4.40 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 ug/L 01 /13/20 4.40 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 ug/L 08/11/20 4.40 10.0 -- ND ND 6.03 J -- ND 5.13 J ND ND 13.8 -- -- 5.19 J 5.99 J -- ND ND ND ND -- 5.73 J ND ND ug/L 01/26/21 4.40 10.0 -- ND ND ND -- ND ND ND ND 15.4 -- -- ND ND -- ND ND ND ND -- ND 4.52 J ND ug/L 08/25/21 4.40 10.0 -- ND 7.86 J 7.91 J -- ND ND ND ND 10.8 -- -- ND -- -- ND ND ND 5.14 J -- ND 5.00 J ND ug/L 02/09/22 4.40 10.0 -- ND ND 8.67 J -- ND ND ND ND 17.3 -- -- 5.26 J -- -- ND ND ND 8.55 J -- ND ND ND ug/L 08/15/22 4.40 10.0 -- ND ND 7.77 J -- ND ND ND ND 12.5 -- -- ND -- -- 39.4 ND ND 6.96 J -- ND ND ND ug/L 01/17/23 8.7 20 -- ND ND ND -- ND ND ND ND 43 -- -- ND -- -- ND ND ND ND -- ND 27 ND https://wsponlinenam-my.sharepoint.com/personal/benjamin_draper_wsp_com/Documents/Desktop/Rowan Active Tables January 2023 June 2023 Page 16 of 20 Project No. GL21456818.001 Table 4 Summary of Detected Constituents in Groundwater at the MSW 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 Carbon disulfide ug/L 10/01/93 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- N C2 L = 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 -- -- -- -- -- -- -- -- 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 -- -- 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 ug/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 ug/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 ug/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 ug/L 08/11/20 1.5 5.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND ND ND ug/L 01/26/21 1.5 5.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND ND ND ug/L 08/25/21 1.5 5.0 -- ND ND ND -- ND ND ND ND ND -- -- ND -- -- ND ND ND ND -- ND ND ND ug/L 02/09/22 1.5 5.0 -- ND ND ND -- ND ND ND ND ND -- -- ND -- -- ND ND ND ND -- ND ND ND ug/L 08/15/22 1.5 5.0 -- ND ND ND -- ND ND ND ND ND -- -- ND -- -- ND ND ND ND -- ND ND ND ug/L 01/17/23 0.17 1.0 -- ND ND ND -- ND ND ND ND ND -- -- ND -- -- ND ND ND ND -- ND ND ND https://wsponlinenam-my.sharepoint.com/personal/benjamin_draper_wsp_com/Documents/Desktop/Rowan Active Tables January 2023 June 2023 Page 17 of 20 Project No. GL21456818.001 Table 4 Summary of Detected Constituents in Groundwater at the MSW Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Upgradient MSW Wells Sidegradient and Downgradient MSW Wells SWS Reporting 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 Naphthalene ug/L 09/26/06 -- -- 10 N D ND -- ND N D -- -- 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 ug/L 11 /01 /17 0.11 -- 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND -- ND Tetrachloroethene ug/L 10/01 /93 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- NC 2 L = 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 ug/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 ug/L 08/11/20 0.17 1.0 -- ND ND ND -- 0.54 J ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND ND ND ug/L 01/26/21 0.17 1.0 -- ND ND ND -- 0.45 J ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND ND ND ug/L 08/25/21 0.17 1.0 -- ND ND ND -- ND ND ND ND ND -- -- ND -- -- ND ND ND ND -- ND ND ND ug/L 02/09/22 0.17 1.0 -- ND ND ND -- 0.97 J ND ND ND ND -- -- ND -- -- ND ND ND ND -- ND ND ND (Verification) ug/L 04/14/22 0.17 1.0 -- -- -- -- -- ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 08/15/22 0.17 1.0 -- ND ND ND -- ND ND ND ND ND -- -- ND -- -- ND ND ND ND -- ND ND ND ug/L 01/17/23 0.17 1.0 -- ND ND ND -- 1.0 ND ND ND ND -- -- ND -- -- ND ND ND ND -- ND ND ND (Verification) ug/L 04/04/23 0.17 1.0 -- -- -- -- -- 1.0 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND https://wsponlinenam-my.sharepoint.com/personal/benjamin_draper_wsp_com/Documents/Desktop/Rowan Active Tables January 2023 June 2023 Page 18 of 20 Project No. GL21456818.001 Table 4 Summary of Detected Constituents in Groundwater at the MSW 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 Toluene ug/L 10/01 /93 -- -- -- N D -- ND ND N D -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- N C2 L = 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 ug/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 ug/L 08/11/20 0.14 1.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND ND ND ug/L 01/26/21 0.14 1.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND ND ND ug/L 08/25/21 0.14 1.0 -- ND ND ND -- ND ND ND ND ND -- -- ND -- -- ND ND ND ND -- ND 7.7 ND ug/L 02/09/22 0.14 1.0 -- ND ND ND -- ND ND ND ND ND -- -- ND -- -- ND ND ND ND -- ND ND ND ug/L 08/15/22 0.14 1.0 -- ND ND ND -- ND ND ND ND ND -- -- ND -- -- ND ND ND ND -- ND ND ND ug/L 01/17/23 0.14 1.0 -- ND ND ND -- ND ND ND ND ND -- -- ND -- -- ND ND ND ND -- ND ND ND https://wsponlinenam-my.sharepoint.com/personal/benjamin_draper_wsp_com/Documents/Desktop/Rowan Active Tables January 2023 June 2023 Page 19 of 20 Project No. GL21456818.001 Table 4 Summary of Detected Constituents in Groundwater at the MSW 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 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 ug/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 ug/L 08/11/20 0.24 1.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND ND ND ug/L 01/26/21 0.24 1.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND ND ND ug/L 08/25/21 0.24 1.0 -- ND ND ND -- ND ND ND ND ND -- -- ND -- -- ND ND ND ND -- ND ND ND ug/L 02/09/22 0.24 1.0 -- ND ND ND -- ND ND ND ND ND -- -- ND -- -- ND ND ND ND -- ND ND ND ug/L 08/15/22 0.24 1.0 -- ND ND ND -- ND ND ND ND ND -- -- ND -- -- ND ND ND ND -- ND ND ND ug/L 01/17/23 0.24 1.0 -- ND ND ND -- ND ND ND ND ND -- -- ND -- -- ND ND ND ND -- ND ND ND https://wsponlinenam-my.sharepoint.com/personal/benjamin_draper_wsp_com/Documents/Desktop/Rowan Active Tables January 2023 June 2023 Page 20 of 20 Project No. GL21456818.001 Table 4 Summary of Detected Constituents in Groundwater at the MSW 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 Xylenes (total) ug/L 10/01/93 -- -- -- ND -- ND ND ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- NC 2 L = 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 ug/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 ug/L 08/11/20 0.45 3.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND ND ND ug/L 01/26/21 0.45 3.0 -- ND ND ND -- ND ND ND ND ND -- -- ND ND -- ND ND ND ND -- ND ND ND ug/L 08/25/21 0.45 3.0 -- ND ND ND -- ND ND ND ND ND -- -- ND -- -- ND ND ND ND -- ND ND ND ug/L 02/09/22 0.45 3.0 -- ND ND ND -- ND ND ND ND ND -- -- ND -- -- ND ND ND ND -- ND ND ND ug/L 08/15/22 0.45 3.0 -- ND ND ND -- ND ND ND ND ND -- -- ND -- -- ND ND ND ND -- ND ND ND ug/L 01/17/23 0.45 3.0 -- ND ND ND -- ND ND ND ND ND -- -- ND -- -- ND ND ND ND -- ND ND 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 August 2022 event: Antimony and Thallium (2x). https://wsponlinenam-my.sharepoint.com/personal/benjamin_draper_wsp_com/Documents/Desktop/Rowan Active Tables January 2023 June 2023 Page 1 of 9 Project No. GL21456818.001 Table 6 Summary of Detected Constituents in Groundwater at the C&D Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 C&D Monitoring Wells Detected Monitoring Constituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Assessmem Monitoring Point Blanks Upgradient Downgradlent MW-17 MW-18 MW-18R MW-18R2 MW-19 MW-19R PWS-1 PWS-2 Antimony ug/L 11/04/05 -- -- -- ND ND - - ND - - - -- NC 21 = 1 ug/L ug/L 12/12/05 -- -- -- ND ND - - ND - - - -- EPA MCL = 6 ug/L ug/L 12/13/05 -- - -- ND ND - - ND - - - -- ug/L 12/22/05 -- - -- NO NO - - ND - - - -- ug/L 12/30/05 -- - 30 ND ND - - ND - - - ND ug/L 09/26/06 -- - 30 - - - -- - - - - ND ug/L 01/31/07 -- - 6 ND ND - -- ND - - - ND ug/L 07/12/07 -- - 6 NO NO - - ND - - - ND ug/L 08/06/07 -- - 6 - - ND - - - - - ND ug/L 01/17/08 -- - 6 ND - ND - NO - - - -- ug/L 07/30/08 -- - 6 ND - ND - ND - - - ND ug/L 01/22/09 -- - 6 NO - ND - NO - - - ND ug/L 07/14/09 -- - 6 ND - ND - ND - - - ND ug/L 01/07/10 -- - 6 NO - NO - NO - - - ND ug/L 07/20/10 -- - 6 ND - ND - ND - - - ND ug/L 01/31/11 -- - 6 NO - NO - NO - - - ND ug/L 07/18/11 -- - 6 ND - ND - ND - - - ND ug/L 07/19/12 -- - 6 ND - ND - ND - - - ND ug/L 01/30/13 -- - 6 ND - ND - ND - - - 0.35 J ug/L 07/15/13 -- - 6 ND - ND - NO - - - ND ug/L 01/27/14 -- - 6 0.422 J - 1.31 J -• ND - - - ND ug/L 07/14/14 -- - 6 ND - ND - ND - - - ND ug/L 01/20/15 0.220 - 6 ND - ND - ND - - - -- ug/L 07/23/15 0.220 - 6 0.399 J - ND - ND - - - ND ug/L 01/12/16 0.220 - 6 0.478 B - 0.266 B - ND - - - 0.577 J ug/L 08/01/16 0.220 - 6 ND - ND - ND - - - ND ug/L 01/17/17 0.370 - 6 ND - ND - ND - - - ND ug/L 07/26/17 0.370 - 6 ND - ND - ND - - - ND ug/L 02/20/18 0.370 - 6 ND - ND - ND - - - -- ug/L 08/O8/18 1.85 5.00 -- ND - ND - ND - - - ND ug/L 01/15/19 1.85 5.00 -- ND - ND - ND - - - ND ug/L 08/15/11 0.740 2.00 -- ND - ND - ND - - - ND ug/L 01/13/20 0.740 2.00 -- ND - ND - ND - - - ND ug/L 08/10/20 0.740 2.00 -- ND - ND - ND - - - ND ug/L 01/26/21 0.740 2.00 -- ND - ND - ND - - - ND ug/L 08/27/21 0.740 2.00 -- ND - - ND - ND - - ND ug/L 02O9122 0.740 2.00 -- ND - - ND - ND - - ND ug/L 08/15/22 0.740 2.00 -- ND - - ND - ND - - ND ug/L 01/17/23 0.34 5.0 ND ND ND ND Arsenic ug/L 11/04/05 -- - -- ND ND - - ND - - - -- NC 21 = 10 ug/L ug/L 12/12/05 -- - -- ND ND - - ND - - - -- EPA MCL = 10 ug/L ug/L 12/13/05 -- - -- ND ND - - ND - - - -- ug/L 12/22/05 -- - -- NO NO - - NO - - - -- ug/L 12/30/OS -- - 10 ND ND - -- ND - - - ND ug/L 09/26/06 -- - 10 ND ND - -- ND - - - ND ug/L 01/31/07 - - 10 4.0 B 2.4 B - -- ND - - - 3.0 J ug/L 07/12/07 - - 10 ND ND - -- ND - - - ND ug/L 08/06/07 - - 10 -- - 5.2 J -- -- - - - ND ug/L 01/17/08 - - 10 ND - ND -- ND - - - ND ug/L 07/30/08 - -- 10 4.2 B -- ND -- ND -- -- -- 3.2 J ug/L 01/22/09 - -- 10 ND -- ND -- ND -- -- -- ND ug/L 07/14/09 - -- 10 ND -- ND -- ND -- -- -- 3.84 J 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 -- -- -- 4.78 J ug/L 07/18/11 - -- 10 3.94 J -- 3.45 J -- 4.56 J -- -- -- ND ug/L 01/25/12 - -- 10 ND -- ND -- ND -- -- -- ND ug/L 07/19/12 - -- 10 ND -- 3.93 J -- 6.09 J -- -- -- ND ug/L 01/30/13 - -- 10 ND -- ND -- ND -- -- -- 2.98 J 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 5.40 -- 10 ND -- ND -- ND -- -- -- NO ug/L 07/23/15 6.80 -- 10 ND -- ND -- ND -- -- -- ND ug/L 01/12/16 6.80 -- 10 ND -- ND -- ND - - - ND ug/L 08/01/16 6.80 -- 10 ND -- ND -- ND - - - ND ug/L 01/17/17 6.80 -- 10 ND - ND -- ND - - - ND ug/L 07/26/17 6.80 -- 10 ND -- ND -- ND - - - ND ug/L 02/20/11, 6.80 -- 10 ND -- ND - ND - - - ND ug/L 08/08/18 7.60 10.0 -- ND - ND - ND - - - ND ug/L 01/15/19 7.60 10.0 -- ND - ND - ND - - - ND ug/L 08/15/19 7.60 10.0 - ND - ND - ND - - - ND ug/L 01/13/20 7.60 10.0 -- ND - ND - ND - - - ND ug/L 08/10/20 7.60 10.0 -- ND - ND - ND - - - NO ug/L 01/26/21 7.60 10.0 -- ND - ND - ND - - - ND ug/L 08/27/21 7.60 10.0 -- NO - - NO - NO - - ND ug/L 02/09/22 7.60 10.0 -- ND - - ND - ND - - ND ug/L 08/15/22 7.60 10.0 - NO - - NO - NO - - ND ug/L 01/17/23 6.4 20 ND ND ND ND Barium ug/L 11/04/05 - - - ND ND -- -- ND - - - - NC2L=700 ug/L ug/L 12/12/05 - - - ND ND -- -- ND - -- -- - EPA MCL =2000 ug/L ug/L 12/13/05 - -- - ND ND -- -- ND -- -- -- - ug/L 12/22/05 - -- - ND ND -- -- ND -- -- -- - ug/L 12/30/05 - -- 500 ND ND -- -- ND - -- -- ND ND ug/L 09/26/0 - -- 500 ND ND -- -- ND -- -- -- ND ug/L 01/31/07 - -- 100 9.10 J 66.8 -- -- 55.5 J -- -- -- 0.40 J ug/L 07/12/07 - -- 100 12.8 J 41.9 J -- -- 55.9 J -- -- -- ND ug/L 08/06/07 - -- 100 -- -- 65.4 B -- -- -- -- -- 17.4 J ug/L 01/1710 - -- 100 9.90 J -- 80.2 J -- 57.9 J -- -- -- ND ug/L 07/30/08 - -- 100 9.40 J -- 77.1 J -- 65.5 J -- -- -- ND ug/L 01/200: - -- 100 8.10 J -- 71.5 J -- 59.2 J -- -- -- ND ug/L 07/14/09 - -- 100 14.1 J -- 81.8 J -- 79.2 J -- -- -- NO ug/L 01/07/10 - -- 100 10.2 J - 69.9 J -- 157 -- - - 0.481 J ug/L 07/20/10 - -- 100 9.14 J - 67.0 J -- 58.8 J -- - - ND ug/L 01/31/11 - -- 100 10.4 J - 95.4 J -- 62.3 J -- - - ND ug/L 07/18/11 -- - 100 11.0 J -- 92.5 J -- 64.4 J -- -- -- ND ug/L 01/25/12 - - 100 11.3 J - 115 - 64.9 J - - - ND ug/L 07/1 9/1 2 -- - 100 10.7 J - 84.7 J - 58..7 J ND ug/L 01/30/13 -- - 100 16.6 J 160 644 J - - - 1.24 J ug/L 07/15/13 100 14.5 J 101 647 J 75 J ug/L 01/27/14 100 14.9 J 87.7 J 60.4 J 1.18 J ug/L 07/14/14 100 16.5 J 74.2 J 60 ND ug/ 05 01/21 1.0 - 100 15.7 J 126 ' J 1.L 01 J ug/L 07/23/15 1.0 - 100 17.0 J - 90.6 J - 66.3 J - - - NO ug/L 01/12/16 1.0 - 100 17.6 J - 120 - 57.1 J - - - 1.94 J ug/L 08/01/i6 1.0 - 100 14.9 J - 72.6 J - 68.6 J - - - ND ug/L 01/17/17 1.0 - 100 17.7 J - 136 - 69.3 J - - - ND ug/L 07/26/17 1.0 - 100 18.4 J - 99.7 J - 72.4 J - - - 2,03 J ug/L 02/20/18 1.0 - 100 16.9 J - 118 - 64.4 J - - - ND ug/L 08/08/18 1.10 10.0 -- 18.0 - 105 - 65.4 - - - 3.31 J ug/L 01/15/19 1.10 10.0 -- 21.2 - 150 - 71.8 - - - ND ug/L O8/15/19 1.10 10.0 -- 21.3 - 216 - 104 - - - ND ug/L 01/13/20 1.10 10.0 -- 22.4 - 214 - 60.8 - - - 1.11 J ug/L 08/10/20 1.10 10.0 -- 25.3 - 115 - 160 - - - ND ug/L 01/26/21 1.10 10.0 -- 22.3 - 113 - 156 - - - ND ug/L 08/27/21 1.10 10.0 -- 22.5 - - 80.3 - 95.0 - - ND ug/L 02/09/22 1.10 10.0 -- 20.9 - - 72.6 - 106 - - ND ug/L 08/15/22 1.10 10.0 -- 1116 - - 113 - 102 - - ND ug/L 01/17/23 4.4 10 15 94 100 ND June 2023 Page 2 of 9 Project No. GL21456818.001 Table 6 Summary of Detected Constituents in Groundwater at the C&D Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 C&D Monitoring Wells Detected Monitoring Constituents/Analytes Units Sample Dale MDL MRL SWS Reporting Limit Assessmem Monitoring Point Blanks Upgradkmt Downgradlent MW-17 MW-18 MW-18R MW-18R2 MW-19 MW-19R PWS-1 PWS-2 Beryllium ug/L 11/04/05 -- - -- ND ND - - 3.7 - - - -- NC 21 = 4 ug/L ug/L 12/12/05 -- - -- ND 5.6 - - 2.7 - - - -- EPA MCL = 4 ug/L ug/L 12/13/05 -- - -- ND 6.5 - - ND - - - -- ug/L 12/22/05 -- - -- ND 2.4 - - 3.7 - - - -- ug/L 12/30/05 -- - 2 ND 2.3 - - 3.6 - - - ND ug/L 09/26/06 -- - 2 - - - - - - - - ND ug/L 01/31/07 -- - 1 ND 0.70 J - - ND - - - ND ug/L 07/12/07 -- - 1 ND ND - - ND - - - ND ug/L 08/06/07 - - 1 - - ND - - - - - ND ug/L 01/17/08 - - 1 ND - ND -- ND - - - ND ug/L 07/30/08 - - 1 ND - ND -- ND - - - ND ug/L 01/22/09 - - 1 ND - 0.10 J -- 0.20 J -- - - ND ug/L 07/14/09 - -- 1 ND -- 0.142 J -- 0.280 J -- -- -- ND ug/L 01/07/10 - -- 1 ND -- 0.115 J -- 1.59 -- -- -- ND ug/L 07/20/10 - -- 1 ND -- ND -- 0.302 J -- -- -- ND ug/L 01/31/11 - -- 1 ND -- 0.103 J -- 0.234 J ND ug/L 07;18/11 - -- 1 ND -- ND -- 0.234 J -- -- -- ND ug/L 01/25/12 - -- 1 ND -- 0.101 J -- 0.182 J -- -- -- ND ug/L 07/19/12 - -- 1 ND -- ND -- 0.197 J -- -- -- ND ug/L 01/30/13 - -- 1 ND -- 0.103 J -- 0.162 J -- -- -- ND ug/L 07/151 3 - -- 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 -- 0.2049 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 ug/L 01/12/i6 0.1 -- 1 ND -- ND -- 0.143 J -- -- -- ND ug/L 08/01/16 0.1 - 1 0.111 J -- 0.103 J -- 0.247 J -- -- - 0.170 J ug/L 01/17/17 0.1 -- 1 ND -- ND -- ND -- -- -- ND ug/L 07/26/17 0.130 - 1 ND - ND -- ND -- -- - ND ug/L 02/20/18 0.130 -- 1 ND -- ND -- 0.201 J -- -- -- ND ug/L 08/08/18 0.160 1.00 - ND - ND -- 0.186 J -- -- -- ND ug/L 01/15/19 0.160 1.00 - ND -- ND -- 0.248 J -- -- -- ND ug/L 08/15/19 0.160 1.00 - ND -- ND -- ND - -- -- ND ug/L 01/13/20 0.160 1.00 - ND -- ND -- ND -- -- -- ND ug/L 08/10/20 0.160 1.00 - ND -- ND -- ND -- -- -- ND ug/L 01/26/21 0.160 1.00 - ND -- ND -- ND -- -- -- ND ug/L 08/27/21 0.160 1.00 - ND -- -- ND -- ND -- -- ND ug/L 02/09/22 0.160 1.00 - ND -- -- ND -- ND -- -- ND ug/L 08/15/22 0.160 1.00 - ND -- -- ND -- ND -- -- ND ug/L 01/17/23 0.30 4.0 ND ND ND ND Cadmium ug/L 11/04/01 -- -- -- ND ND -- -- ND -- -- -- -- NC 2L = 2 ug/L ug/L 12/12/05 -- -- -- ND ND -- -- ND -- - - -- EPA MCL = 5 ug/L ug/L 12/13/05 -- - -- ND ND - - ND - - - -- ug/L 12/22/OS -- - -- ND ND - - ND - - - -- ug/L 12/30/05 -- - 1 ND ND - - ND - - - ND ug/L 09/26/06 -- - 1 ND ND - - ND - - - ND ug/L 01/31/07 -- - 1 ND ND - - ND - - - ND ug/L 07/12/07 -- - 1 ND ND - - ND - - - ND ug/L 08/06/07 -- - 1 - - ND - - - - - ND ug/L 01/17/08 -- - 1 ND - ND - ND - - - ND ug/L 07/30/08 - - 1 0.40 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 ug/L 01/25/12 - -- 1 ND -- ND -- ND -- -- -- ND ug/L 07/19/12 - -- 1 ND -- ND -- ND -- -- -- ND ug/L 01/30/13 - -- 1 ND -- ND -- ND -- -- -- ND ug/L 07/15/13 - -- 1 ND -- ND -- ND -- - - ND ug/L 01/27/14 - - 1 ND -- ND -- ND -- - - ND ug/L 07/14/14 -- - 1 ND -- ND -- ND - -- - ND ug/L 01/20/15 0.36 - 1 ND -- ND -- ND - -- - ND ug/L 07/23/15 0.36 - 1 ND -- ND -- ND - -- - ND ug/L 01/12/16 0.36 - 1 ND -- ND -- ND - -- - ND ug/L 08/01/16 0.36 - 1 ND - ND -- ND -- -- -- ND ug/L 01/17/17 0.36 -- 1 ND -- ND -- ND -- -- -- ND ug/L 07/26/17 0.36 -- 1 ND -- ND -- ND -- -- -- ND ug/L 02/20/18 0.36 -- 1 ND -- ND -- ND -- -- -- ND ug/L 08/081 8 0.36 1.00 - ND -- ND -- ND -- -- -- ND ug/L 01/15/19 0.36 1.00 - ND -- ND -- ND -- -- -- ND ug/L 08/15/19 0.36 1.00 - ND -- ND -- ND -- -- -- ND ug/L 01/13/20 0.36 1.00 - ND -- ND -- ND -- -- -- ND ug/L 08/10/20 0.36 1.00 - ND -- ND -- ND -- -- -- ND ug/L 01/26/21 0.36 1.00 - ND -- ND -- ND -- -- -- ND ug/L 08/27/21 0.36 1.00 - ND -- -- ND - ND -- -- ND ug/L 02/09/22 0.360 1.00 - ND -- -- ND -- ND -- -- ND ug/L 08/15/22 0.360 1.00 - ND -- -- ND -- ND -- -- ND ug/L 01/17/23 0.44 5.0 ND ND ND ND Chromium ug/L 11/04/05 - -- - ND ND -- -- 24 -- -- -- - NC 2L = 10 ug/L ug/L 12/1410 - -- - ND 71 -- -- 26 -- -- -- - EPA MCL = 100 ug/L ug/L 12/13/05 - -- - ND ND -- -- ND -- -- -- - ug/L 12/22/05 - -- - ND 32 -- -- 35 -- -- -- - ug/L 12/30/05 - -- 10 ND 29 -- -- 15 -- -- -- ND ug/L 09/26/O6 - -- 10 ND ND -- -- ND -- -- -- ND ug/L 09/31/07 - -- 10 ND 3.2 J -- -- ND - - - ND ug/L 07/12t07 - -- 10 79.2 11.6 -- -- 3.0 J - - - ND ug/L 08/06/07 - -- 10 -- -- ND -- -- -- - - ND ug/L 01/17/08 - -- 10 ND -- 2.2 J -- ND -- - - ND ug/L 07/30/08 - - 10 ND - 4.6 B - ND - - - 14.5 ug/L 01/22/09 -- - 10 ND - ND - ND - - - ND ug/L 07/14/0' -- - 10 ND - 2.32 J - ND - - - ND ug/L 01/07/10 -- - 10 ND - ND - 10.5 -• - - 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 - - - 1.5 J 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 1.40 - 10 ND - ND -- ND - - - ND ug/L 07/23/15 1.40 - 10 ND - ND - ND - - - ND ug/L 01/12/16 1.40 - 10 ND -- ND -- ND -- -- -- ND ug/L 08/01/i6 1.40 -- 10 ND -- ND -- ND - - - ND ug/L 01/17/17 1.40 -- 10 ND -- ND -- ND - - - ND ug/L 07/26/17 1.40 -- 10 ND -- ND -- ND -- -- -- ND ug/L 02/20/18 1.40 -- 10 ND -- ND -- ND -- -- -- ND ug/L 08/08/18 1.40 10.0 - ND -- ND -- ND -- -- -- 1.66 J ug/L 01/15/19 1.40 10.0 - ND -- ND -- ND -- -- -- ND ug/L 08/15/19 1.40 10.0 - ND -- ND -- ND -- -- -- ND ug/L 01/13/20 1.40 10.0 - ND -- ND -- 1.42 J -- -- -- ND ug/L 08/10/20 1.40 10.0 - ND -- 2.57 J -- 1.53 J -- -- -- ND ug/L 01/26/21 1.40 10.0 - ND -- 2.06 J -- ND -- -- -- ND ug/L 08/27/21 1.40 10.0 - ND -- -- 7.24 J -- ND -- -- ND ug/L 02/09/22 1.40 10.0 - ND -- -- 9.05 J -- ND -- -- ND ug/L 08/15/22 1.40 10.0 - ND -- -- 11.3 -- ND -- -- ND ug/L 01/17/23 1.1 10 ND 1.3 J ND ND N%%p June 2023 Page 3 of 9 Project No. GL21456818.001 Table 6 Summary of Detected Constituents in Groundwater at the C&D Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 C&D Monitoring Wells Detected Monitoring Constituents/Analytes Units Sample Dale MDL MRL SWS Reporting Limit Assessmem Monitoring Point Blanks Upgradkmt Downgradlent MW-17 MW-18 MW-18R MW-18R2 MW-19 MW-19R PWS-1 PWS-2 Cobalt ug/L 11/04/05 -- - -- ND ND - - ND - - - -- NC2L=1 ug/L ug/L 12/12/05 -- - -- NO 14 - - NO - - - -- NoEPAMCL ug/L 12/13/05 -- - -- ND 12 - - ND - - - -- ug/L 12/22/05 -- - -- ND ND - - 13 -- - - -- ug/L 12/30/05 -- - 10 ND 10 - - 10 -- - - ND ug/L 09/26/06 -- - 10 - -- - - - - - - ND ug/L 01/31/07 -- - 10 ND 8.6 J - - NO - - - NO ug/L 07/12/07 -- - 10 ND 3.0 J - - ND - - - ND ug/L 08/06/07 - - 10 - -- 2.7 J •- - - - - ND ug/L 01/17/08 - - 10 ND - ND - ND - - - ND ug/L 07/30/08 - - 10 NO - 1.8 B -- NO - - - 1.1 J ug/L 01/22/09 - - 10 2.1 B - 1.7 B -- ND - - - 1.5 J ug/L 07/14/09 - - 10 ND - 0.807 J -- NO - - - ND ug/L 01/07/10 - - 10 ND - 0.766 J -- 4.77 J - -- -- ND ug/L 07/20/10 - -- 10 ND -- ND -- ND -- - - ND ug/L 01/31/11 - -- 10 ND -- ND -- ND -- - - NO ug/L 07/18/11 - -- 10 ND -- ND -- ND -- - - ND ug/L 01/25/12 - -- 10 ND -- 1.10 J - ND -- -- -- NO ug/L 07/19/12 - -- 10 ND -- ND -- ND -- -- -- ND ug/L 01/30/13 - -- 10 ND -- 1.42 J - ND -- -- -- ND ug/L 07/15/13 - -- 10 ND -- ND -- ND -- -- -- ND ug/L 01/27/14 - -- 10 ND -- 1.66 J - ND -- -- -- ND ug/L (17/14/14 - -- 10 ND -- ND -- ND -- -- -- ND ug/L 01/20/15 1.10 -- 10 ND -- 1.51 J - ND -- -- -- ND ug/L 07/23/15 1.10 -- 10 ND -- 1.45 J - ND -- -- -- ND ug/L 01/12/16 1.10 -- 10 ND -- 1.61 J - ND -- -- -- ND ug/L 08/01/16 1.10 -- 10 ND -- 1.13 J - ND -- -- -- ND ug/L 01/17/17 1.10 -- 10 ND - 1.90 J - ND -- -- -- ND ug/L 07/26/17 1.10 -- 10 ND -- 1.62 J - ND -- -- -- ND ug/L 02/20/11 1.10 -- 10 1.16 B -- 2.34 B - ND -- -- -- 1.22 J ug/L 08/08/18 1.40 10.0 - ND -- 2.69 J - 1.83 J - -- -- ND ug/L 01/15/19 1.40 10.0 - ND -- 4.18 J - ND -- -- -- ND ug/L 08/15/19 1.40 10.0 - ND -- 4.67 J - 7.79 J - -- -- ND ug/L 01/13/20 1.40 10.0 - ND -- 2.48 J - ND -- -- -- ND ug/L 08/10/20 1.40 10.0 - ND -- 2.72 J - 19.6 - -- -- ND (Verification vent ug/L 1 - -- -- -- -- 14.0 (14.2)' - -- -- ND ug/L 01/26/21 1.40 10.0 - ND -- 3.36 J - 25.9 - -- -- ND ug/L 08/27/21 1.40 10.0 - ND -- -- 75.5 -- ND -- -- ND (Verification Event) u9/L 10/O8121 1.40 10.0 -- - - - 84.0 -- - - - ND ug/L 02/09/22 1.40 10.0 -- ND - - 63.9 - ND - - ND ug/L 08/15/22 1.40 10.0 -- NO - - 76.7 - NO - - ND ug/L 01/17/23 1.4 10 ND 73 ND ND Copper ug/L 11/04/05 -- - -- ND ND - - ND - - - -- NC2L=1000 ug/L ug/L 12/12/05 -- - -- ND ND - - ND - - - -- EPA MCL = 1300 ug/L ug/L 12/13/05 -- - -- ND ND - - ND - - - -- ug/L 12/22/05 -- - -- NO NO - - NO - - - -- ug/L 12/30/05 -- - 200 ND ND - - ND - - - ND ug/L 09/26/06 - - 200 - - - - - - - - ND ug/L 01/31/07 - - 10 ND 4.70 J - - ND - - - ND ug/L 07/12/07 - - 10 3.70 J NO -- -- NO -- - - ND ug/L 08/06/07 - - 10 -- -- ND -- -- - - - 4 J ug/L 01/17/08 - - 10 1.80 B - 1.90 B -- 1.20 B - - -- 1.30 J ug/L 07/30/08 - -- 10 ND -- ND -- ND -- - -- NO ug/L 01/22/09 - -- 10 2.40 J -- ND -- ND -- -- -- ND ug/L 07/14/09 - -- 10 1.12 B -- 1.28 B -- 4.03 B -- -- -- 1.04 J ug/L 011 11 - -- 10 ND -- ND -- 2.34 J -- -- -- ND ug/L 07/20/10 - -- 10 ND -- ND -- ND -- -- -- 3.50 J ug/L 01/31/11 - -- 10 1.78 J -- ND -- ND ND ug/L 07/18/11 - -- 10 ND -- ND -- ND -- -- -- ND ug/L 01/25/12 - -- 10 ND -- ND -- ND -- -- -- NO ug/L 07/29/12 - -- 10 ND -- ND -- ND -- -- -- ND ug/L 01/30/13 - -- 10 ND -- ND -- 1.87 J -- -- -- NO ug/L 07/15/13 - -- 10 ND -- ND -- ND -- -- -- ND ug/L 01/2714 - -- 10 ND -- ND -- ND -- -- -- ND ug/L 07/14/14 - -- 10 ND -- ND -- ND -- -- -- ND ug/L 01/20/15 1.60 -- 10 ND -- 1.74 J -- ND -- -- -- ND ug/L 07%/15 1.60 -- 10 ND -- ND -- ND -- -- -- 1.90 J ug/L 01/1216 1.60 -- 10 ND -- ND -- ND -- -- -- 3.52 J ug/L 08/01/16 1.60 -- 10 ND -- ND -- ND -- -- -- ND ug/L 01/17/17 1.60 -- 10 ND -- 2.32 B -- ND -- -- -- 4.80 J ug/L 07/26/17 1.60 -- 10 1.89 B -- 1.72 B -- ND -- -- -- 4.18 J ug/L 02/20/18 1.60 -- 10 ND -- ND -- ND -- -- -- ND ug/L 08/08/18 1.60 10.0 - ND -- ND -- ND -- -- -- ND ug/L 01/15/19 1.60 10.0 - ND -- ND -- ND -- -- -- ND ug/L 08/15/19 1.60 10.0 - 1.63 J -- ND -- ND -- -- -- ND ug/L 01/13/20 1.60 10.0 - ND -- ND -- ND -- - - ND ug/L 08/10/20 1.60 10.0 - 2.45 B - ND -- ND - - - ND ug/L 01/26/21 1.60 10.0 - 2.55 J - ND -- ND - - - ND ug/L OB/27/21 1.80 10.0 - ND - -- ND -- ND - - ND ug/L 02/09/22 1.60 10.0 - ND -- -- ND -- ND -- -- ND ug/L 08/15/22 1.60 10.0 - 1.85 J -- -- ND -- ND -- -- ND ug/L 01/17/23 3.2 20 ND ND ND ND Lead ug/L 11/04/OS - -- - ND ND -- -- 18 - -- -- - NC 2L = 15 ug/L ug/L 12/12/05 - -- - ND 24 -- -- 16 - -- -- - EPA MCL = 15 ug/L ug/L 12/13/0S - -- - ND 10 -- -- ND -- -- -- ug/L 12/22/OS - -- - ND 11 -- -- 28 - -- -- - ug/L 12/30/05 - -- 10 ND 10 -- -- 23 - -- -- ND ug/L 09/26/0 - -- 10 ND ND -- -- ND -- -- -- ND ug/L 01/31/07 - -- 10 ND 4.0 J -- -- ND - - - ND ug/L 07/12/07 - -- 10 ND ND -- -- ND - - - ND ug/L 08/06/07 - -- 10 -- -- ND -- - - - - ND ug/L 01/17/08 - - 10 ND - ND - ND - - - ND ug/L 07/30/08 -- - 10 ND - ND - ND - - - ND ug/L 01/22/09 -- - 10 ND - ND - ND - - - ND ug/L 07/14/09 -- - 10 ND - 2.35 B - ND - - - 3.40 J ug/L 01/07/10 -- - 10 1.47 B - ND - 12.8 - - - 1.58 J ug/L 07/20/10 -- - 10 ND - ND - ND - - - ND ug/L 0113111 -- - 10 NO - ND - ND - - - ND ug/L 07/18/11 -- - 10 ND - ND - ND - - - ND ug/L 01/251 2 -- - 10 NO - NO - ND - - - ND ug/L 07/19/12 -- - 10 ND - ND - ND - - - ND ug/L 01/30/13 -- - 10 NO - ND - ND - - - 1.97 J ug/L 07/15/13 -- - 10 ND - ND - ND - - - ND ug/L 01/27/14 -- - 10 NO - NO - NO - - - ND ug/L 07/14/14 -- - 10 ND - ND - ND - - - ND ug/L 01/20/15 2.10 - 10 ND - ND - ND - - - ND ug/L 07/23/15 3.10 - 10 ND - ND - ND - - - ND ug/L 01/12/i6 3.10 - 10 ND - ND - ND - - - ND ug/L 08/01/16 3.10 - 10 ND - ND - ND - - - ND ug/L 01/17/17 3.10 -- 10 ND -- ND -- ND - - - ND ug/L 07/26/17 3.10 -- 10 ND - ND -- ND - - - NO ug/L 02/20/18 3.10 -- 10 ND -- ND -- ND -- -- -- ND ug/L 08/08/18 3.10 10.0 - ND -- ND -- NO -- -- -- ND ug/L 01/15/19 3.10 10.0 - ND -- ND -- NO -- -- -- ND ug/L 08/15/19 3.10 10.0 - ND -- ND -- ND -- -- -- NO ug/L 01/13/20 3.10 10.0 - ND -- ND -- NO -- -- -- ND ug/L 08/10/20 3.10 10.0 - ND -- ND -- NO -- -- -- ND ug/L 01/26/21 3.10 10.0 - ND -- ND -- ND -- -- -- ND ug/L 08/27/21 3.10 10.0 - ND -- -- ND -- ND -- -- ND ug/L 02/09/22 3.10 10.0 - 3.87 J -- -- ND -- ND -- -- ND ug/L 08/15/22 3.10 10.0 - ND -- -- NO -- ND -- -- NO ug/L 01/17/23 6.6 10 ND ND ND ND June 2023 Page 4 of 9 Project No. GL21456818.001 Table 6 Summary of Detected Constituents in Groundwater at the C&D Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 C&D Monitoring Wells Detected Monitoring Constituents/Analytes Units Sample Dale MDL MRL SWS Reporting Limit Assessmem Monitoring Point Blanks Upgradkmt Downgradlent MW-17 MW-18 MW-18R MW-18R2 MW-19 MW-19R PWS-1 PWS-2 Mercury ug/L 12/30/05 -- - 0.5 - - - - - - - - -- NC 21 1.05 ug/L ug/L 09/26/06 -- - 0.5 ND ND - - ND - - - ND ug/L 01/31/07 -- - 0.2 ND ND - - ND - - - ND ug/L 07/12/07 -- - 0.2 ND ND - - ND - - - ND ug/L 08/06/07 -- - 0.2 - - ND - - - - - ND ug/L 01/17/08 -- - 0.2 ND - ND - ND - - - ND u9/1- 07/30/08 -- - 0.2 ND - ND - ND - - - ND ug/L 01/22/09 - - 0.2 ND - ND - ND - - - ND ug/L 07/14/09 - - 0.2 ND - ND -- ND -- - - ND ug/L 01/07/10 - - 0.2 ND -- ND -- ND -- - - NO ug/L 07/20/10 - -- 0.2 ND -- ND -- ND ND ug/L 01/31/11 - -- 0.2 ND -- ND -- ND -- -- -- ND ug/L 07/18/11 - -- 0.2 ND -- ND -- ND -- -- -- ND ug/L 01/25/12 - -- 0.2 ND -- ND -- ND -- -- -- ND ug/L 07/19/12 - -- 0.2 ND -- ND -- ND -- -- -- ND ug/L 01/30/13 - - 0.2 ND -- ND -- ND -- - - ND ug/L 07/15/13 - - 0.2 ND -- ND -- ND -- - - NO ug/L 01/27/14 - - 0.2 ND - ND -- ND - - - ND ug/L 07/14/14 - - 0 NO - NO - NO - - - ND ug/L 01/20/15 -- - 0.2 ND - ND - ND - - - -- ug/L 07/23/15 0.170 - 0.2 ND - ND - ND - - - ND ug/L 01/12/i6 0.17 - 0.2 ND - ND - ND - - - ND ug/L 08/01/16 0.170 - 0.2 ND - ND - ND - - - ND ug/L 01/17/17 0.170 - 0.2 ND ND - - ND - - - ND ug/L 07/26/17 0.170 - 0.2 ND - ND - ND - - - ND ug/L 02/20/18 0.170 - 0.2 ND ND -- - ND - - - - ug/L 08/08/18 0.150 0.200 -- ND - ND - ND - - - ND ug/L 01/15/19 -- - -- ND - ND - 0.290 - - - ND ug/L 08/151,9 0.2 10.0 -- ND - ND - ND - - - ND ug/L 01,13,20 -- - -- ND - ND - ND - - - ND ug/L 08/10/20 0.150 0.200 -- ND - ND - ND - - - ND ug/L 01/26/21 0.150 0.200 -- ND - ND - ND - - - ND ug/L 08/27/21 0.150 0.200 -- ND - - ND - ND - - ND ug/L 02/09/22 0.15 0.200 -- ND - - ND - 0.151 J - - ND ug/L 08/15/22 0.150 0.20 00 -- ND - - ND - 0.223 - - ND ug/L 01/17/23 0.080 0.20 NO NO 0.27 ND Nickel ug/L 11/04/0 -- - -- ND ND - - ND - - - -- NC 2L = 100 ug/L ug/L 12/12/05 -- - -- ND ND - - ND - - - -- NoEPA MCL ug/L 12/13/05 - - - ND ND - - ND - - - -- ug/L 12/22/05 - - -- ND ND - - ND - - - -- ug/L 12130/0 - - 50 ND ND -- -- -- - - - ND ug/L 09/26/06 - - 50 -- -- -- -- -- - - - ND ug/L 01/31/07 - - 50 ND 3.1 J -- -- ND - - -- ND ug/L 07/12/07 - -- 50 31.7 J 5.3 J -- -- ND -- -- -- ND ug/L 08/06/07 - -- 50 -- -- ND -- -- -- -- -- ND ug/L 01/17/08 - -- 50 ND -- ND -- ND -- -- -- ND ug/L 07/3D/OB - -- 50 ND -- 2.9 B -- ND -- -- -- 12.4 J ug/L 01/22/09 - -- 50 ND -- ND -- ND -- -- -- NO ug/L 07/14/09 - -- 50 ND -- 1.30 J -- 1.06 J -- -- -- ND ug/L 01/07/10 - -- 50 ND -- ND -- 4.963 J -- -- -- NO ug/L 07/20/10 - -- 50 ND -- ND -- ND -- -- -- ND ug/L 01/31/11 - -- 50 ND -- ND -- ND -- -- -- NO ug/L 07/18/1 1 - -- 50 ND -- ND -- ND -- -- -- ND ug/L 01/25/12 - -- 50 3.13 J -- ND -- ND -- -- -- ND ug/L- -- ND -- ND -- ND -- -- -- ND ug/L 01/30/13 - -- 50 ND -- ND -- ND -- -- -- ND ug/L 07/15/13 - -- 50 ND -- -- ND ND -- -- -- ND ug/L 01/27/14 - -- 50 ND -- ND -- ND -- -- -- ND ug/L 07/14/14 - -- 50 6.13 J -- NO -- NO -- - - ND ug/L 01/20/15 1.80 - 50 ND - ND -- ND -- -- -- ND ug/L 07/23/15 1.80 -- 50 ND -- NO -- ND -- -- -- ND ug/L 01/12/16 1.80 -- 50 ND -- ND -- ND -- -- -- ND ug/L 08/01/16 2.20 -- 50 ND -- ND -- ND -- -- -- ND ug/L 01/17/17 2.20 -- 50 ND -- ND -- ND -- -- -- NO ug/L 07/26/17 2.20 -- 50 ND -- ND -- ND -- -- -- ND ug/L 02/20/18 2.20 -- 50 ND -- ND -- ND -- -- -- ND ug/L 08/08/16 2.20 10.0 - ND -- ND -- ND -- -- -- ND ug/L 01/15/1: 2.20 10.0 - ND -- ND -- ND -- -- -- ND ug/L 08/15/19 2.20 10.0 - ND -- ND -- ND -- -- -- ND ug/L 01/13/20 2.20 10.0 - ND -- ND -- ND -- -- -- ND ug/L 08/10/20 2.20 10.0 - ND -- ND -- ND - - - ND ug/L 01/26/21 2.20 10.0 - ND -- ND -- ND - - - ND ug/L 08/27/21 2.20 10.0 - ND -- -- 61.6 -- 6.32 J - - ND ug/L 02/09/22 2.20 10.0 - ND - -- 47.5 -- 4.73 J - - ND ug/L 08/15/22 2.20 10.0 - ND -- -- 57.9 -- 6.04 J - - ND ug/L 01/17/23 3.3 40 ND 64 7.5 J ND Selenium ug/L 12/30/05 - -- 20 ND ND -- -- ND -- ND NC 2L = 20 ug/L ug/L 09/26/06 - -- 20 ND ND -- -- ND -- -- -- NO EPA MCL=50 ug/L ug/L 01/31/07 - -- 10 2.6 B ND -- -- ND -- -- -- 2.0 J ug/L 07/12/07 - -- 10 ND ND -- -- ND -- -- -- ND ug/L 08/06/07 - -- 10 -- -- ND -- -- -- -- -- ND ug/L 01/17/08 - -- 10 3.5 B -- ND -- 2.7 B -- -- -- 2.1 J ug/L 07/30/08 - -- 10 ND -- ND -- NO -- -- -- ND ug/L 01/22J09 - -- 10 ND -- ND -- ND -- -- -- ND ug/L 07/14/09 - -- 10 ND -- ND -- NO -- -- -- ND ug/L 01/07/10 - -- 10 ND -- ND -- ND -- -- -- ND ug/L 07/20/10 - -- 10 ND -- ND -- NO -- -- -- ND ug/L 01/31/11 - -- 10 ND -- ND -- ND -- -- -- ND ug/L 07/18/11 - -- 10 ND -- ND -- NO -- -- -- NO ug/L 01/25/12 - -- 10 ND -- ND -- ND -- -- -- ND ug/L 07/19/12 - -- 10 ND -- ND -- NO -- -- -- NO ug/L 01/30/13 - -- 10 ND -- ND -- ND -- -- -- ND u9/L 01/30/13 - -- 10 ND -- ND -- NO -- -- -- NO ug/L 07/15/13 - -- 10 ND -- ND -- ND -- -- -- ND ug/L 01/27/14 - -- 10 ND -- ND -- ND -- -- -- NO ug/L 07/14/14 - -- 10 ND -- ND -- ND -- -- -- ND ug/L of 20/15 5 -- 10 ND -- ND -- ND -- -- -- NO ug/L 07/23/15 5 -- 10 ND -- ND -- ND -- -- -- ND ug/L 01/121 6 5 -- 10 ND -- ND -- ND -- -- -- NO ug/L 08/01/16 6.2 -- 10 ND -- ND - ND - -- -- ND ug/L 01/17/17 6.2 -- 10 ND -- ND -- ND -- -- -- NO ug/L 07/26/17 6.2 -- 10 ND - ND - ND - -- -- ND ug/L 02/20/18 6.2 -- 10 ND -- ND -- ND -- -- -- ND ug/L 08/08/18 6.2 10.0 - ND -- ND - ND - -- -- ND ug/L 01/15/19 6.2 10.0 - ND -- ND -- ND -- -- -- ND ug/L 08/15/19 6.2 10.0 - ND -- ND - ND - -- -- ND ug/L 01/13/20 6.2 10.0 - ND -- ND -- ND -- -- -- ND ug/L 08/10/20 6.2 10.0 - ND -- ND - ND - -- -- ND ug/L 01/26/21 6.2 10.0 - ND -- ND -- ND -- -- -- ND ug/L 08/27/21 6.2 10.0 - ND -- -- ND - ND -- -- ND ug/L 02/09/22 6.20 10.0 - ND -- -- ND -- ND -- -- ND ug/L 08/15/22 6.20 10.0 - ND -- -- ND - ND -- -- ND ug/L 01/17/23 10 20 ND ND ND ND I%%p June 2023 Page 5 of 9 Project No. GL21456818.001 Table 6 Summary of Detected Constituents in Groundwater at the C&D Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 C&D Monitoring Wells Detected Monitoring Constituents/Analytes Units Sample Dale MDL MRL SWS Reporting Limit Assessmem Monitoring Point Blanks Upgradient Downgradlent MW-17 MW-18 MW-18R MW-118R2 MW-19 MW-19R PWS-1 PWS-2 Silver ug/L 12/01/05 -- - 10 ND ND - - ND - - - ND NC 21 =20 ug/L ug/L 09/26/06 -- - 10 NO NO - - NO - - - ND EPA MCL=100 ug/L ug/L 01/31/07 -- - 10 ND ND - - ND - - - ND ug/L 07/12/07 -- - 10 ND ND - - ND - - - ND ug/L 08/06/07 -- - 10 - - NO - - - - - ND ug/L 01/17/08 -- - 10 ND - ND - ND - - - ND u9/1- 07/30/08 - - 10 NO - NO - NO - - - ND ug/L 01/22/09 - - 10 2.7 B - ND - ND - - - 2.1 J ug/L 07/14/09 - - 10 NO - ND -- NO - - - ND ug/L 01/07/10 - - 10 ND - ND -- ND - - - ND ug/L 07/20/10 - - 10 NO - NO -- NO - - - ND ug/L 01/31/11 - - 10 ND - ND -- ND - - - ND ug/L 07/18/11 - - 10 NO - NO -- NO - - - ND ug/L 01/25/12 - - 10 1.91 J - ND -- ND -- - - ND ug/L 07/19/12 - - 10 2.94 J - 3.44 J -- NO -- - - ND ug/L 01/30/13 - -- 10 ND -- 2.31 J -- ND -- -- -- NO 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 1.90 -- 10 ND -- ND -- ND -- -- - 3.39 J ug/L 07/23/15 1.90 -- 10 NO - NO -- ND -- -- - ND ug/L 01/12/16 1.90 -- 10 ND - ND -- ND -- -- - ND ug/L 08/01/16 1.90 - 10 4.39 J - ND -- ND -- -- - ND ug/L 01/17/17 1.90 - 10 ND - ND -- ND -- -- - ND ug/L 07/26/17 1.90 - 10 ND - 1.90 J -- 2.12 J -- -- - ND ug/L 02/20/18 1.90 - 10 ND - ND -- ND - - - ND ug/L 08/08/18 1.90 10.0 -- ND -- NO - 2.11 J - - - ND ug/L 01/15/19 1.90 10.0 -- ND - ND - ND - - - ND ug/L 08/15/19 1.90 10.0 -- ND - NO - NO - - - ND ug/L 01/13/20 1.90 10.0 - ND - ND - ND - - - ND ug/L 08/10/20 1.90 10.0 -- 2.49 B - 2.43 B - NO - - - ND ug/L 01/26/21 1.90 10.0 - ND - ND - ND - - - ND ug/L 08/27/21 1.90 10.0 -- NO - - ND - ND - - ND ug/L 02/09/22 1.90 10.0 -- ND - - ND -- ND -- -- ND ug/L 08/15/22 1.90 10.0 -- ND -- -- ND -- ND -- -- ND ug/L 01/17/23 1.5 10 ND ND ND ND Thallium ug/L 11/04/05 - -- - ND ND -- -- ND -- -- -- - NC2L=2 ug/L ug/L 12/12/05 - -- - ND ND -- -- ND -- -- -- - EPA MCL=2 ug/L ug/L 12/13/05 - -- - ND ND -- -- ND -- -- -- - ug/L 12/22/05 - -- - ND ND -- -- ND -- ug/L 12/30/05 - -- 10 ND ND -- -- ND -- -- -- NO ug/L 09/26/06 - -- 10 -- -- -- -- - -- -- -- ND ug/L 01/31/07 - -- 5.5 ND 0.085 J -- -- ND -- -- -- ND ug/L 07/12/07 - -- 5.5 ND ND -- -- ND -- -- -- ND ug/L 08/06/07 - - 5.5 -- -- 0.080 J -- -- -- - - ND ug/L 01/17/08 - - 5.5 ND - 0.084 J -- ND -- - - ND ug/L 07/30/08 - - 5.5 ND - 0.141 J -- ND -- - - ND ug/L 01/22/09 - - 5.5 ND - 0.078 B -- 0.068 B -- - - 0.096 J ug/L 07/14/09 - - 5.5 ND - 0.0580 J - 0.0490 J - - - ND ug/L 01/07/10 -- - 5.5 ND - ND - 0.415 J - - - ND ug/L 07/20/10 -- - 5.5 ND - ND - ND - - - ND ug/L 01/31/11 -- - 5.5 ND - ND - ND - - - ND ug/L 07/18/11 -- - 5.5 NO - NO - NO - - - ND ug/L 01/25/12 -- - 5.5 ND - ND - ND - - - ND ug/L 07/19/12 -- - 5.5 ND - ND - ND - - - ND ug/L 01/30/13 - - 5.5 ND - ND - ND - - - ND ug/L 07/15/13 - - 5.5 ND -- 0.113 J -- ND -- - - ND ug/L 01/27/14 -- - 5.5 ND -- 0.151 J -- ND - -- - ND ug/L 07/14/14 - - 5.5 ND -- ND -- ND - -- - ND ug/L 01/20/15 0.110 - 5.5 ND - 0.178 J -- ND - -- - - ug/L 07/23/15 0.110 -- 5.5 ND -- 0.120 J -- ND -- -- -- ND ug/L 01/12/16 0.110 -- 5.5 ND -- 0.309 J -- 0.118 J -- -- -- ND ug/L 08/01/16 0.110 -- 5.5 ND -- 0.285 J -- ND -- -- -- ND ug/L 01/17/17 0.110 -- 5.5 ND -- 0.439 J -- ND -- -- -- ND ug/L 07/26/17 0.110 -- 5.5 0.160 J -- 0.458 J -- 0.155 J -- -- -- ND ug/L 02/20/18 0.110 -- 5.5 ND -- 0.339 J -- ND -- -- -- ND ug/L 08/08/18 0.550 5.00 - ND -- ND -- ND -- -- -- ND ug/L 01/15/19 0.550 5.00 - ND -- ND -- ND -- -- -- ND ug/L 08/15/19 0.220 2.00 - ND -- 0.242 J -- ND -- -- -- ND ug/L 01/13/20 0.220 2.00 - ND -- 0.699 J -- ND -- -- -- ND ug/L 08/10/20 0.220 2.00 - ND -- 0.390 J -- 0.229 J -- -- -- ND ug/L 01/26/21 0.220 2.00 - ND -- 0.493 J -- ND -- -- -- ND ug/L 08/27/21 0.220 2.00 - ND -- -- 0.228 J -- ND -- -- ND ug/L 02/09/22 0.220 2.00 - ND - - 0.241 J - ND -- -- ND ug/L 08/15/22 0.220 2.00 - ND -- -- 0.392 J -- ND -- -- NO ug/L 01/17/23 0.26 1.0 ND 0.39 J ND ND Tin ug/L 02/09/22 2.90 10.0 - -- -- -- 26.7 -- -- -- -- NO NC 2L = 2000 ug/L ug/L 08/15/22 2.90 10.0 - -- -- -- ND -- -- -- -- ND ug/L 01/17/23 11 50 - -- -- -- ND -- ND -- -- NO Vanadium ug/L 11/04/05 - -- - ND ND -- -- 52 - -- -- - NC 21 = 7 ug/L ug/L 12/12/05 - -- - ND 160 -- -- 53 - -- -- No EPA MCL ug/L 12/13/05 - -- - ND 42 -- -- ND -- -- -- - ug/L 12/22/05 - -- - ND 78 -- -- 78 - -- -- - ug/L 12/30/05 - -- 40 ND 69 -- -- 45 - -- -- ND ug/L 09/26/06 - -- 40 -- -- -- -- -- -- - - ND ug/L 01/31/07 - - 25 ND 16.4 J -- -- ND - - - ND ug/L 07/12/07 - - 25 ND ND -- -- ND - - - ND ug/L 08/06/07 - - 25 - - 1.4 J -- - - - - ND ug/L 01/17/08 -- - 25 1.4 J - 7.8 J -- 1.7 J - - - ND ug/L 07/30/08 -- - 25 ND - 5.3 J -- ND - - - ND ug/L 01/22/09 -- - 25 2.3 B - 2.5 B - ND - - - 1.4 J ug/L 07/14/09 -- - 25 ND - 4.91 J -- 1.55 J -- - - ND ug/L 01/07/10 -- - 25 ND - 1.53 J -- 23.5 J -- - - ND ug/L 07/20/10 -- - 25 ND - 1.77 J -- 2.02 J -- - - ND ug/L 01/31/11 -- - 25 ND - ND -- ND -- - - ND ug/L 07/18/11 -- - 25 ND - ND -- ND -- - - ND ug/L 01/25/12 -- - 25 ND - ND -- ND -- - - ND ug/L 07/19/12 -- - 25 ND - ND -- ND -- - - ND ug/L 01/30/13 -- - 25 ND - ND -- ND -- - - ND ug/L 07/15/13 -- - 25 ND - ND -- ND -- - - ND ug/L 01/27/14 -- - 25 ND - ND -- ND -- - - ND ug/L 07/14/14 -- - 25 ND - ND -- ND -- - - ND ug/L 01/20/15 1.40 - 25 ND - ND -- ND -- - - ND ug/L 07/23/15 1.40 - 25 ND - ND -- ND -- - - ND ug/L 01/12/16 1.40 - 25 ND - ND -- ND -- - - ND ug/L 08/01/16 1.40 - 25 ND - ND -- ND - - - ND ug/L 01/17/17 1.40 -- 25 ND -- ND -- NO -- - - ND ug/L 07/26/17 1.40 -- 25 ND -- ND -- NO -- -- -- ND ug/L 02/20/18 1.40 -- 25 ND -- ND -- NO -- -- -- ND ug/L 08/08/18 1.40 10.0 - NO -- NO -- 1.74 J - -- -- ND ug/L 01/15/19 1.40 10.0 - NO -- NO -- ND -- -- -- ND ug/L 08/15/19 1.40 10.0 - NO -- NO -- ND -- -- -- ND ug/L 01/13/20 1.40 10.0 - NO -- ND -- 3.35 J - -- -- ND ug/L 08/10/20 1.40 10.0 - NO -- ND -- ND -- -- -- ND ug/L 01/26/21 1.40 10.0 - ND -- ND -- ND -- -- -- ND ug/L 08/27/21 1.40 10.0 - ND -- -- ND -- ND -- -- ND ug/L 02/09/22 1.40 10.0 - ND -- -- ND -- ND -- -- ND ug/L 08/15/22 1.40 10.0 - ND -- -- ND -- ND -- -- ND ug/L 01/17/23 1.0 10 ND 2.1 J ND ND 1%%p June 2023 Page 6 of 9 Project No. GL21456818.001 Table 6 Summary of Detected Constituents in Groundwater at the C&D Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 C&D Monitoring Wells Detected Monitoring Constituents/Analytes Units Sample Data MDL MRL SWS Reporting Limit Assessment Monitoring Point Blanks Upgradient Downgradlent MW-17 MW-18 MW-18R MW-i8R2 MW-19 MW-19R PWS-1 PWS-2 Zinc ug/L 11/04/05 -- - -- 52 ND - - 62 - - - -- NC 21 = 1000 ug/L ug/L 12/12/05 -- - -- NO 56 - - 68 - - - -- EPA MCL = 5000 ug/L ug/L 12/13/05 -- - -- NO NO - - NO - - - -- ug/L 12122/05 -- - -- NO NO - - 94 - - - -- ug/L 12130/05 -- - 50 NO 430 - - 51 - - - ND ug/L 09/26/06 -- - 50 - - - - - - - - ND ug/L 01/31/07 -- - 10 NO 10.1 - - NO - - - ND u9/L 07/12/07 -- - 10 3.7 J ND - - ND - - - ND ug/L 08/06/07 -- - 10 - - 15 B - - - - - 15 J ug/L 01/17/08 -- - 10 ND - ND - ND - - - ND ug/L 07/30/08 - - 10 ND - ND - ND - - - ND ug/L 01/22/09 - - 10 ND - ND - ND - - - ND ug/L 07/14/09 - - 10 7.12 J - ND - 5.82 J - - - ND ug/L 01/07/10 - - 10 2.46 J - 27.3 -- 43.0 - - - ND ug/L 07/20/10 - - 10 ND - ND -- 8.41 J - - - 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 -- 4.63 J - - - 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 3.96 J - ND -- ND - -- - ND ug/L 07/14/14 - -- 10 ND -- ND -- ND - -- - ND ug/L 01/20/15 3.80 - 10 5.76 J - ND -- ND - -- - ND ug/L 07/23/15 3.80 -- 10 ND - ND -- ND - -- - ND ug/L 01/12/16 3.80 - 10 ND - ND -- ND - -- - ND ug/L 08/01/16 4.40 - 10 ND - ND -- ND - -- - ND ug/L 01/17/17 4.40 - 10 ND - ND - ND - - - ND ug/L 07/26/17 4.40 - 10 ND - ND - ND - - - ND ug/L 02/20/18 4.40 - 10 ND - ND - ND - - - ND ug/L 08/08/18 4.40 10.0 -- ND - ND - ND -- - - ND ug/L 01/15/19 4.40 10.0 -- ND - ND - NO - - - ND ug/L 08/15/19 4.40 10.0 -- 5.60 J - 5.87 J - 5.92 J - - - ND ug/L 01/13/20 4.40 10.0 -- 6.97 J - 4.68 J - ND -- - - ND ug/L 08/10/20 4.40 10.0 -- ND - ND - 4.50 J - - - ND ug/L 01/26/21 4.40 10.0 -- 5.33 J - ND - ND - - - ND ug/L 08/27/21 4.40 10.0 -- 7.88 J - - 7.73 J - ND - - ND ug/L 02/09/22 4.40 10.0 -- ND - - 5.76 J - ND - - ND ug/L 08/15/22 4.40 10.0 -- 6.40 J - - 5.59 J - ND - - ND ug/L 01/17/23 8.7 20 ND 51 ND ND Iron ug/L 01/31/07 -- - 300 20 J 2510 -- - 180 - - - ND NC 2L=300 ug/L ug/L 07/12/07 -- - 300 284 J 96B -- - 31 J - - - ND EPA MCL = 300 ug/L ug/L 08/06/07 -- - 300 - - 585 -- -- - - - ND ug/L 01/17/08 -- - 300 ND - 2310 - 286 J - -- -- ND ug/L 07/30/08 - - 300 ND - 1310 -- 79 J - - - ND ug/L 01/22/09 - - 300 ND - 623 -- 68 J - - - ND ug/L 07/14/09 - - 300 47.9 J - 1450 -- 224 J - - - ND ug/L 01/07/10 - - 300 20.0 J -- 484 -- 9220 - -- -- ND ug/L 07/20/10 - - 300 58.4 B -- 469 - 431 - - - 30.8 J ug/L 01/31/11 - - 300 ND -- 57.0 J -- 35.9 J - - - ND ug/L 07/18/11 - -- 300 ND - ND -- 102 J - - - ND ug/L 01/25/12 - -- 300 ND - ND -- 71.2 J - - - ND ug/L 07/19/12 - -- 300 27.7 J -- ND -- 65.4 J - - - ND ug/L 01/30/13 - -- 300 48.3 J -- ND -- 58.6 J -- -- -- ND ug/L 07/15/13 - -- 300 ND -- ND -- 97.1 J -- -- -- ND ug/L 01/27/14 - -- 300 ND -- ND -- ND -- - - ND ug/L 07/14/14 - -- 300 40.6 J -- 165 J -- 25.9 J -- -- -- ND ug/L 01/20/15 22.0 -- 300 ND -- 47.5 J -- ND -- -- -- ND ug/L 07/23/15 22.0 -- 300 ND -- 35.5 J -- ND -- -- -- ND ug/L 01/12/16 22.0 -- 300 59.8 J -- 222 J -- ND -- -- -- ND ug/L 08/01/16 22.0 -- 300 65.1 J -- 168 J -- 38.7 J -- -- -- ND ug/L 01/17/17 22.0 -- 300 ND -- 32.6 J -- ND -- -- -- ND ug/L 07/26/17 22.0 -- 300 47.6 J -- 36.6 J -- ND -- -- -- ND ug/L 02/20/18 22.0 -- 300 ND -- 34 J -- 40.4 J -- -- -- ND ug/L 08/08/18 22.0 50.0 - 63.4 -- 62.8 -- 167 -- -- -- ND ug/L 01/15/19 22.0 50.0 - ND -- 1820 - 104 -- -- -- ND ug/L 02/21/19 22.0 50.0 - ND -- 2110 -- - -- -- -- NO ug/L 08/15/19 22.0 50.0 - ND -- 1480 -- 5930 -- -- -- NO ug/L 01/13/20 22.0 50.0 - ND -- 796 -- 1370 -- -- -- NO ug/L 08/10/20 22.0 50.0 - 81.8 -- 3550 -- 20600 -- -- -- NO ug/L 01/26/21 22.0 50.0 - 39.4 J -- 2170 -- 32500 - -- -- ND ug/L 08/27/21 22.0 50.0 - 95.8 -- -- 12600 -- 51.6 -- -- NO (Verification Event) ug/L 10/08/21 22.0 50.0 - -- -- -- 7500 -- -- -- -- ND ug/L 02/09/22 22.0 50.0 - 25.7 J -- -- 15600 -- 38.5 J -- -- NO ug/L 08/15/22 22.0 50.0 - ND -- -- 26700 -- ND -- -- ND ug/L 01/17/23 1 20 100 ND 29000 26 J ND Manganese ug/L 01/31/07 - -- 50 2.2 J 660 -- -- 22.1 -- -- -- ND NC 21 = 50 ug/L ug/L 07/12/07 - -- 50 15.1 J 236 -- -- 11.2 J -- -- -- ND EPA MCL = 50 ug/L ug/L 08/06/07 -- - 50 - -- 163 -- - - - - ND ug/L 01/17/08 -- - 50 ND - 38.9 J - 12.0 B - - - 3.5 J u91 07/30/08 -- - 50 1.6 J - 35.4 J - 7.5 J - - - ND ug/L 01/22/09 -- - 50 2.0 J - 33.7 J - 7.7 J - - - ND ug/L 07/14/09 -- - 50 2.90 J - 37.4 J - 19.4 J - - - ND ug/L 01/07/10 -- - 50 1.77 J - 31.0 J - 202 -- - - ND ug/L 07/20/10 -- - 50 5.27 J - 34.6 J - 22.2 J - - - ND ug/L 01/31/11 -- - 50 3.02 J - 43.8 J - 12.8 J - - - ND ug/L 07/18/11 -- - 50 1.70 J - 45.9 J - 8.73 J - - - ND ug/L 01/25/12 -- - 50 ND - 65.6 -- 6.77 J - - - ND ug/L 07/19/12 - - 50 1.23 J - 62.2 -- 3.99 J - - - ND ug/L 01/30/13 - - 50 1.95 J - 149 -- 4.13 J - - - ND ug/L 07/15/13 - - 50 3.00 J - 342 -- 8.13 J - - - ND ug/L 01/27/14 - - 50 3.48 J - 225 -- 5.88 J - - - ND ug/L 07/14/14 - - 50 7.22 J - 177 - 7.62 J -- -- -- NO ug/L 01/20/15 1.10 - 50 4.07 J - 362 - 5.00 J -- -- -- NO ug/L 07/23/15 1.10 - 50 1.85 J - 184 - 9.51 J -- -- -- NO ug/L 01/12/16 1.10 - 50 3.21 J - 690 - 4.39 J -- -- -- NO ug/L 08/01/16 1.10 - 50 4.82 J - 330 - 51.0 -- - -- ND ug/L 01/17/17 1.10 -- 50 6.69 J - 668 -- 4.50 J -- -- -- ND ug/L 07/26/17 1.10 -- 50 4.34 J - 513 -- 40.6 J -- -- -- ND ug/L 02/20/18 1.10 -- 50 9.35 J - 676 -- 5.72 J - -- -- ND ug/L 08/08/18 1.50 10.0 - 5.48 J - 572 -- 24.7 -- -- -- ND ug/L 01/15/19 1.50 10.0 - 8.93 J - 1540 -- 18.3 -- -- -- ND (Verification Event) ug/L 02/21/19 1.50 10.0 - -- - 1780 - -- -- -- -- NO ug/L 08/15/19 1.50 10.0 - 29.1 - 827 - 911 -- -- -- ND ug/L 01/13/20 1.50 10.0 - 17.9 - 1550 -- 200 -- -- -- ND ug/L 08/10/20 1.50 10.0 - 25.4 - 1120 -- 2860 - -- -- ND ug/L 01/26/21 1.50 10.0 - 17.9 - 1240 -- 3380 -- -- -- ND ug/L 08/27/21 1.50 10.0 - 54.8 - -- 14100 - 73.5 -- -- ND (Verification Event) ug/L 10/08/21 1.50 10.0 - -- - -- 15500 - -- -- -- ND ug/L 02/09/22 1.50 10.0 - 21.7 - - 17300 - 34.5 -- -- ND ug/L 08/15/22 1.50 10.0 - 14.2 - -- 17300 - 24.5 -- -- ND ug/L 01/17/23 1.3 10 7.7 J 18000 21 ND Ax%p June 2023 Page 7 of 9 Project No. GL21456818.001 Table 6 Summary of Detected Constituents in Groundwater at the C&D Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 C&D Monitoring Wells Detected Monitoring Constituents/Analytes Units Sample Dale MDL MRL SWS Reporting Limit Assessment Monitoring Point Blanks Upgradkmt Downgmdlent MW-17 MW-18 MW-18R MW-18R2 MW-19 MW-19R PWS-1 PWS-2 Acetone ug/L 11/04/05 -- - -- ND ND - - NO - - - -- NC21- = 6000 ug/L ug/L 12/12/05 -- - -- NO NO - - NO - - - No EPA MCL ug/L 12/13/05 -- - -- ND ND - - ND - - - -- ug/L 12/22/05 -- - -- ND ND - - ND - - - -- ug/L 12/30/05 -- - 20 ND ND - - ND - - - ND ug/L 09/26/06 -- - 100 ND ND - - ND - - - ND ug/L 09/26/06 - - 100 ND ND ND - ND - - - ND ug/L 01/31/07 - - 100 ND ND - - ND - - - ND ug/L 01/31/07 - - 100 ND ND ND -- ND -- - - ND ug/L 07/12/07 - - 100 ND ND -- -- ND -- - - 0.93 J ug/L 07/12/07 - - 100 ND ND ND -- ND -- - - ND ug/L 08/06/07 - -- 100 -- -- ND -- -- -- -- -- ND ug/L 08/06/07 - -- 100 ND ND ND -- ND -- -- -- 0.93 J ug/L 01/17/08 - -- 100 ND -- ND -- ND -- -- -- ND ug/L 01/17/08 - -- 100 ND ND ND -- ND -- -- -- NO ug/L 07/30/08 - -- 100 5.2 J -- ND -- ND -- -- -- NO ug/L 01/22/09 - -- 100 ND -- ND -- ND -- -- -- NO ug/L 07/14/09 - -- 100 ND -- ND -- ND -- -- -- NO ug/L 01/07/10 - -- 100 ND -- ND -- ND -- -- -- ND ug/L 07/20/10 - -- 100 ND -- ND -- ND -- -- -- ND ug/L 01/31/11 - -- 100 ND -- ND -- ND -- -- -- ND ug/L 07/18/11 - -- 100 ND -- ND -- ND -- - - ND ug/L 01/25/12 - -- 100 ND -- ND -- ND -- - - ND ug/L 07/19/12 - -- 100 ND -- ND -- ND -- - - ND ug/L 01/30/13 - - 100 ND -- ND -- ND -- -- - ND ug/L 07/15/13 - - 100 ND -- ND -- ND -- -- - ND ug/L 01/27/14 - - 100 ND -- ND -- ND -- -- - ND ug/L 07/14/14 - - 100 ND -- ND -- ND -- -- - ND ug/L 01/20/15 1.2 - 100 ND -- ND -- ND -- -- - -- ug/L 07/23/15 1.2 - 100 ND -- ND -- ND - - - ND ug/L 01/12/16 1.2 - 100 ND -- ND - ND - - - ND ug/L 08/01/16 1.2 - 100 ND - ND - ND - - - ND ug/L 01/17/17 10 - 100 ND - ND -- ND - - - ND ug/L 07/26/17 10 - 100 ND - ND -- ND - - - ND ug/L 02/20/18 10 - 100 ND - ND - ND - - - ND ug/L 08/08/18 10 20 -- ND - ND - ND - - - ND ug/L 01/15/19 10 20 -- ND - ND - ND - - - ND ug/L 08/15/19 10 20 -- ND - ND - ND - - - ND ug/L 01/13/20 10 20 - ND - ND - ND - - - ND ug/L 08/10/20 10 20 - ND - ND - ND - -- - ND ug/L 01/26/21 10 20 -- ND -- ND -- ND -- -- -- ND ug/L 08/27/21 10 20 -- ND -- -- ND -- ND -- -- 38 ug/L 02/09/22 10 20 - ND -- -- ND -- ND -- -- ND ug/L 08/15/22 10 20 - ND -- -- ND -- ND -- -- 20 ug/L 01/17/23 10 20 ND 10 J ND 42 Benzene ug/L 01/31/07 - -- 3 ND ND -- -- ND -- -- -- ND NC 2L = 1 ug/L ug/L 07/12/07 - -- 1 ND ND -- -- ND -- -- -- ND EPA MCL=5 ug/L ug/L 08/06/07 - -- 1 -- -- ND -- - -- -- -- NO ug/L 01/17/08 - -- 1 ND -- ND -- ND -- -- -- ND ug/L 07/30/08 - -- 1 ND -- ND -- ND -- -- -- ND ug/L 01/22/09 - -- 1 ND -- ND -- ND -- -- -- ND ug/L 07/14/09 - - 1 ND -- ND -- ND - - - ND ug/L 01/07/10 - - 1 ND - ND -- ND - - - 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 ug/L 01/25/12 -- - 1 NO - NO - ND - - - ND ug/L 07/19/12 -- - 1 NO - NO - ND - - - ND ug/L 01/30/13 -- - 1 ND - ND - ND - - - ND ug/L 07/15/13 -- - 1 ND - ND - ND - - - ND ug/L 01/27/14 - - 1 ND - ND - ND - - - ND ug/L 07/14/14 - - 1 ND -- ND -- ND -- - - ND ug/L 01/20/15 - - 1 ND -- ND -- ND -- - - -- ug/L 07/23/15 0.15 - 1 ND -- ND -- ND -- - - ND ug/L 01/12/16 0.15 - 1 ND -- ND -- ND -- - - ND ug/L 08/01/16 0.15 - 1 ND - ND - 1.3 -- - - ND (Verification Event) ug/L 09/01/16 0.15 - 1 - - - -- ND -- - - -- ug/L 01/17/17 0.15 - 1 ND -- ND -- ND - - - ND ug/L 07/26/17 0.15 - 1 ND - ND - ND - - - ND ug/L 02/20/18 0.15 - 1 ND ND - - ND - - - ND ug/L 08/08/18 0.15 1.0 - ND - ND - ND - - - ND ug/L 01/15/19 0.15 1.0 - ND - ND -- ND -- - - ND ug/L 08/15/19 0.15 1.0 -- ND -- 2.1 -- 4.5 -- - - ND (Verification Event) ug/L 10/03/19 0.15 1.0 - ND -- 2.3 -- 1.0 - -- -- ND ug/L 01/13/20 0.15 1.0 - ND -- ND -- ND - - - ND ug/L 08/10/20 0.15 1.0 - ND -- 1.1 - 5.8 j - -- -- ND (Verification Event) ug/L 10/19/20 0.15 1.0 - -- -- 1.4 - 3.2 - -- -- ND ug/L 01/26/21 0.15 1.0 - ND -- 0.79 J -- 7A . - -- -- ND ug/L 08/27/21 0.15 1.0 - ND -- -- 4.1 -- 0.75 J -- -- ND (Verification Event) ug/L 10/08/21 0.15 1.0 - -- -- -- 3.1 -- -- -- -- ND ug/L 02/09/22 0.15 1.0 - ND -- -- 4.5 -- 0.93 J 0.7 J 0.7 J ND ug/L 08/15/22 0.15 1.0 - ND -- -- 5.5 -- 1.4 -- -- NO (Verification Event) ug/L 10/05/22 0.15 1.0 - -- -- -- -- -- 2.1 -- -- NO ug/L 01/17/23 0.15 1.0 ND 7.0 2.8 0.46 J ND ND cis-1,2-Dichlomethene ug/L 09/26/06 - -- 5 ND ND -- -- ND -- -- -- ND NC 2L = 70 ug/L ug/L 01/31/07 - -- 5 ND ND -- -- ND -- -- -- ND EPA MCL=70 ug/L ug/L 07/12/07 - -- 5 ND ND -- -- ND -- -- -- ND ug/L 08/06/07 - -- 5 -- -- ND -- -- -- -- -- ND ug/L 01/17/08 - -- 5 ND -- ND -- ND -- -- -- ND ug/L 07/30/08 - - 5 ND - ND -- ND -- - - ND ug/L 01/22/09 - - 5 ND - ND -- ND -- - - ND ug/L 07/14/09 - - 5 ND - ND - ND - - - ND ug/L 01/07/10 -- - 5 ND - ND - ND - - - ND ug/L 07/20/10 -- - 5 ND - ND - NO - - - ND ug/L 01/31/11 -- - 5 ND - ND - ND - - - ND ug/L 07/18/11 -- - 5 ND - ND - ND - - - ND ug/L 01/25/12 -- - 5 ND - ND - ND - - - ND ug/L 07/19/12 - - 5 ND - ND - ND - - - ND ug/L 01/30/13 - - 5 NO -- NO -- NO -- - - ND ug/L 07/15/13 - - 5 ND -- ND -- ND -- - - ND ug/L 01/27/14 - - 5 NO - 0.69 J -- NO -- - - ND ug/L 07/14/14 - -- 5 ND -- 1.7 J -- ND -- -- -- NO ug/L 01/20/15 0.15 -- 5 ND -- ND -- ND -- - - - ug/L 07/23/15 0.15 -- 5 ND -- 1.2 J -- ND -- - - ND ug/L 01/12/16 0.15 - 5 NO -- ND -- NO -- - - ND ug/L 08/01/16 0.15 - 5 ND - 0.89 J -- ND -- - - ND ug/L 01/17/17 0.15 -- 5 ND -- ND -- ND -- - - ND ug/L 07/26/17 0.15 -- 5 ND -- ND -- ND - - - ND ug/L 02/20/18 0.15 -- 5 NO - NO - NO - - - ND ug/L 08/08/18 0.15 1.0 -- ND - ND - ND - - - ND ug/L 01/15/19 0.15 1.0 - NO -- NO -- ND - - - ND ug/L 08/15/19 0.15 1.0 - ND -- ND -- ND - - - ND ug/L 01/13/20 0.15 1.0 - ND - ND -- NO - - - ND ug/L 08/10/20 0.15 1.0 - ND -- ND -- ND -- -- -- ND ug/L 01/26/21 0.15 1.0 - ND -- ND -- ND -- -- -- ND ug/L 08/27/21 0.15 1.0 - ND -- -- ND -- ND -- -- ND ug/L 02/09/22 0.15 1.0 - ND -- -- ND -- ND ND ND ND ug/L 08/15/22 0.15 1.0 - ND -- -- ND -- ND -- -- ND ug/L 01/17/23 0.15 1.0 ND ND 0.25 J 0.266 J %%%p June 2023 Page 8 of 9 Project No. GL21456818.001 Table 6 Summary of Detected Constituents in Groundwater at the C&D Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 C&D Monitoring Wells Detected Monitoring Constituents/Analytes Units Sample Data MDL MRL SWS Reporting Limit Assessment Monitoring Point Blanks Upgradient Downgradlent MW-17 MW-18 MW-18R MW-118R2 MW-19 MW-19R PWS-1 PWS-2 1,4-Dionne ug/L 08/08/18 25 60 -- ND - ND - ND - - - ND NC 21 = 3 ug/L, No EPA MCL ug/L 01/15/19 1.2 2.0 -- NO - 4.6 -- NO - - - ND (Verification Event) ug/L 02/21/19 1.2 2.0 -- ND - 5.0 -- ND - - - ND ug/L 08/15/19 1.2 2.0 -- ND - 26 -- 25 -- - - ND ug/L 01/13/20 1.2 2.0 -- ND - 6.3 -- 7.2 -- - - ND ug/L 08/10/20 0.80 2.0 -- ND - 15 -- 29 -- - - ND ug/L 01/26/21 0.80 2.0 -- ND - 14 -- 38 -- - - ND ug/L 08/27/21 0.80 2.0 -- 1.5 J - - 31 - 5.2 - - ND ug/L 02/09/22 0.80 2.0 -- ND - - 31 - 3.3 - - ND ug/L 08/15/22 0.80 2.0 -- 0.85 J - - 41 - 7.2 - - ND ug/L 01/17/23 0.32 0.50 ND 40 9.7 ND Tetmhydrofuren ug/L 01/31/11 -- - -- ND - ND - ND - - - ND NC 2L=2000 ug/L ug/L 07/18/11 -- - -- NO - NO - ND - - - ND No EPA MCL ug/L 07/18/11 -- - -- ND - ND - ND - - - ND ug/L 01/25/12 -- - -- NO - NO - NO - - - ND ug/L 07/19/12 - - - ND - ND - ND - - - ND ug/L 01/30/13 - - - ND - ND -- NO -- - - ND ug/L 07/15/13 - - - ND - 2.4 -- ND - - - ND ug/L 01/27/14 - -- - ND -- 1.3 -- ND ND ug/L 07/14/14 - -- - ND -- ND -- ND -- -- -- ND ug/L 01/20/15 0.8 -- - ND -- ND -- ND -- -- -- - ug/L 07/23/15 0.8 -- - ND -- ND -- ND -- -- -- ND ug/L 01/12/16 0.8 -- - ND -- ND -- ND -- -- -- ND ug/L 08/01/16 0.8 -- - ND -- ND -- ND -- -- -- ND ug/L 01/17/17 0.8 -- - ND -- ND -- 2.5 -- -- -- NO ug/L 07/26/17 0.8 -- - ND -- ND -- ND - - - ND ug/L 02/20/18 0.53 -- -- ND -- ND -- ND -- -- -- ND ug/L 08/08/18 0.53 1.0 - ND -- ND -- 3.2 - - - ND ug/L 01/15/19 0.53 1.0 -- ND - ND -- ND - - - ND ug/L 08/15/19 0.53 1.0 - ND - ND - ND - - - ND ug/L 01/13/20 0.53 1.0 -- ND - ND - ND - - - ND ug/L 08/10/20 0.53 1.0 -- ND - 4.5 - ND - - - ND ug/L 01/26/21 0.53 1.0 -- ND - ND - ND - - - ND ug/L 08/27/21 0.53 1.0 -- ND - - 21 - 10 - - ND ug/L 02/09/22 0.53 1.0 -- ND - - NO - NO - - ND ug/L 08/15/22 0.53 1.0 -- ND - - 14 - ND - - ND ug/L 01/17/23 0.53 1.0 NO 16 16 ND Isophorone ug/L 02/09/22 2.5 10 - - - - ND - - - - ND ug/L 01/17/23 2.0 10 24 29.2 4,4'-DDD ug/L 02/09/22 0.044 0.050 - - - - ND - - - - ND NC 2L=0.1 ug/L ug/L 01/17/23 0.0020 0.050 -- - - - - - 0.013 J - - ND Vedfcation Event ug/L 04/IM/23 0.0020 0.050 0.038 J ND Heptachlor epoxide ug/L 02/09/22 0.037 0.050 - NO - - - ND NC 2L=0.004 ug/L ug/L 01/17/23 0.0020 0.050 -- - - - - - 0.047 J - - ND (Verification Event) ug/L 04/04/23 0.0020 0.050 0.070 ND Sulfide mg/L 02/09/22 0.00001 0.0001 - - - - ND - - - - ND mg/L 01/17/23 0.00001 0.0001 -- - - - - - 2.7 - - ND Verification Event nn/L 04/04/23 0.00001 0.0001 3.5 ND Chloride mg/L 01/31/07 -- - -- 11.0 6.0 - - 9.0 - - - ND NC 2L=250 mg/L mg/L 07/12/07 -- - -- 4.8 2.8 - - 2.4 - - - ND EPA MCL = 250 ug/L mg/L 08/06/07 - - -- - - 2.9 - - - - - ND mg/L 01/17/08 - -- -- 12 -- 5.2 B -- 7.5 B -- -- -- 2.1 mg/L 07/30/08 - - - 9.6 - 3.8 B -- 5.6 - - - 0.95 mg/L 01/22/09 - - - 7.5 - 2.6 J -- 3.2 J - - - ND mg/L 07/14/09 - - - 9.4 B - 5.8 B -- 6.6 B - - -- 2.2 mg/L 01/07/10 - -- - 9.1 -- 6.0 -- 6.0 -- -- -- ND mg/L 07/20/10 - -- - 9.0 -- 6.8 -- 6.6 -- -- -- ND mg/L 01/31/11 - -- - 8.7 B -- 9.4 -- 5.9 B -- -- -- 1.8 mg/L 07/18/11 - -- - 7.8 -- 8.9 -- 5.6 B -- -- -- 1.5 mg/L 01/25/12 - -- - 7.5 -- 17 -- 5.1 B -- -- -- 1.4 mg/L 07/19/12 - -- - 5.6 -- 7.1 -- 4.6 -- -- -- ND mg/L 01/30/13 - -- - 7.2 B -- 22 -- 4.6 B -- -- -- 1.5 mg/L 07/15/13 - -- - 6.6 -- 35 -- 4.5 J -- -- -- ND mg/L 01/27/14 - -- - 6.3 -- 22 -- 3.9 J -- -- -- ND mg/L 07/14/14 - -- - 5.8 -- 8.5 -- 5.8 -- -- -- ND mg/L 01/20/15 2.2 -- - 6.5 -- 21 -- 5.4 -- -- -- - mg/L 07/23/15 2.2 -- - 6.5 -- 12 -- 6.1 -- -- -- - mg/I 01/12/16 2.2 -- - 5.6 -- 35 -- 2.3 J -- -- -- - mg/L 08/01/16 0.29 -- - 4.6 J -- 16 -- 5.5 -- -- -- ND mg/L 01/17/17 2.2 -- - 5.3 -- 30 -- 4.7 J -- -- -- ND mg/L 07/26/17 2.2 -- - 5.3 -- 23 -- 5.0 -- -- -- ND mg/L 02/20/18 2.2 -- - 5 -- 32 -- 2.8 J -- -- -- ND mg/L 08/08/18 2.2 5 - 3.6 J -- 25 -- 2.9 J -- -- -- ND mg/L 01/15/19 2.2 5 - 3.3 J -- 33 -- ND -- -- -- ND (Verification Event) mg/L 02/21/19 2.2 5 - -- -- 33 -- -- -- -- -- ND mg/L 08/1119 2.2 5 - 4.0 J - 92 -- 11 -- -- -- NO mg/L 01/13/20 2.2 5 - 5.4 - 39 -- 5.3 -- -- - ND mg/L 08/10/20 2.2 5 - 3.6 J -- 71 -- 43 -- -- - NO mg/L 01/26/21 2.2 5 - 3.9 J -- 52 -- 50 -- -- -- ND mg/L 08/27/21 2.2 5 - 4.6 J - -- 110 -- 5.9 -- - NO mg/L 02/09/22 2.2 5 - 4.8 J - -- 110 - 5.7 - - ND mg/L 08/15/22 2.2 5 - 4.5 J - -- 120 -- 6.1 - - NO mg/L 01/17/23 2.2 5.0 4.0 J 120 7.4 ND Total Dissolved Solids mg/L 01/31/07 - - - 120 108 -- -- 84 - - - NO NC 2L = 500 mg/L mg/L 07/12/07 - - - 80 62 - - 72 - - - ND No EPA MCL mg/L 08/06/07 - - - - - 90 - - - - - ND mg/L 01/17/08 -- - -- 70 - 94 - 88 - - - ND mg/L 07/30/08 -- - -- 110 - 48 - 96 - - - NO mg/L 01/22/09 -- - -- 66 - 520 -- 52 - - - ND mg/L 07/14/09 -- - -- 96 - 100 - 100 - - - ND mg/L 01/07/10 -- - -- 80 - 60 - 74 - - - ND mg/L 07/20/10 -- - -- 74 - 72 - 68 - - - ND mg/L 01/31/11 -- - -- 94 - 100 - 44 - - - ND mg/L 07/18/11 -- - -- 54 - 80 - 70 - - - ND mg/L 01/25/12 -- - -- 56 - 82 - 56 - - - ND mg/L 07/19/12 -- - -- 78 - 70 - 66 - - - ND mg/L 01/30/13 -- - -- 32 - 140 - 36 - - - ND mg/L 07/15/13 -- - -- 56 - 250 -- 48 - - - ND mg/L 01/27/14 -- - -- 52 - 130 - 40 - - - ND mg/L 07/14/14 -- - -- 34 - 68 -- 48 - - - ND mg/L 01/20/14 10 - -- 46 - 200 - 56 - - - -- mg/L 07/23/15 50 - -- 52 - 88 -- 68 - - - -- mg/L 01/12/16 50 - - 72 - 300 - ND - - - -- mg/L 08/01/16 50 - -- 56 - 170 -- 80 - - - ND mg/L 01/17/7 50 - - ND - 320 - 64 - - - ND mg/L 07/26/17 50 - -- ND - 210 -- ND - - - ND mg/L 02/20/18 50 - - 66 - 380 -- 72 - - - ND mg/L 08/08/18 50 50 - ND - 240 -- ND - - - ND mg/L 01/15/19 50 50 -- 60 - 520 -- 110 - - - ND (Verification Event) mg/L 02/21/19 50 50 -- - - 690 -- -- - - - ND mg/L 08/15/19 50 50 -- ND -- 270 -- 110 - - - ND mg/L 01/13/20 50 50 -- 82 - 660 -- 90 - - - ND mg/L 08/10/20 50 50 -- ND - 410 -- 160 - - - ND mg/L 01/26/21 50 50 -- 70 - 550 -- 240 - - - ND mg/L 08/27/21 50 50 -- 76 - - 1200 - 100 - - ND (Verification Event) mg/L 10/08/21 50 50 -- - -- -- 1200 - - - - ND mg/L 02/09/22 50 50 -- 64 - - 1400 - 86 - - ND mg/L 08/15/22 50 50 -- ND - - 1600 - 110 - - ND mg/L 01/17/23 50 50 100 1800 180 ND %1%p June 2023 Page 9 of 9 Project No. GL21456818.001 Table 6 Summary of Detected Constituents in Groundwater at the C&D Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 C&D Monitoring Wells Detected Monitoring Constituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Assessment Monitoring Point Blanks Upgradkmt Downgradlent MW-17 MW-18 MW-18R MW-18R2 MW-19 MW-19R PWS-1 PWS-2 Sulfate ri 01/31/07 -- - -- ND 1.3 J - - 1.5 J - - - ND NC 21 = 250 mg/L mg/L 07/12/07 -- - -- 0.91 1.6 - - 1.2 - - - ND No EPA MCL mg/L 08/06/07 -- - -- - - 3.7 B - - - - - 3.2 J mg/L 01/17/08 -- - 250 1.0 J - 0.99 J - 1.1 J - - - ND mg/L 07/30/08 -- - 250 1.6 J - 2.4 J - 1.5 J - - - ND mg/L 01/22/09 -- - 250 NO - 2.7 J - 2.2 J - - - ND mg/L 07/14/09 -- - 250 ND - 2.9 J - 3.2 J - - - ND mg/L 01/07/10 -- - 250 ND - 2.6 J - 2.5 J - - - ND mg/L 07/20/10 -- - 250 ND - 3.0 J - 2.8 J - - - ND mg/L 01/31/11 -- - 250 1.8 J - 3.4 J - 3.1 J - - - ND mg/L 07/18/11 -- - 250 1.7 J - 3.6 J - 2.5 J - - - ND mg/L 01/25/12 -- - 250 1.4 J - 7.4 J - 2.7 J - - - ND mg/L 07/19/12 -- - 250 2 J - 9.2 J - 2.4 J - - - ND mg/L 01/30/13 -- - 250 1.7 J - 12 J - 2.8 J - - - ND mg/L 07/15/13 -- - 250 1.6 B - 70 J - 4.1 B - - - 1.5 J mg/L 01/27/14 -- - 250 ND - 33 J - 4 J - - - ND mg/L 07/14/14 -- - 250 ND - 21 J - ND - - - ND mg/L 01/20/15 2.9 - 250 ND - 63 J - ND - - - -- mg/L 07/23/15 2.9 - 250 ND - 16 J - NO - - - -- mg/L 01/12/16 2.9 - 250 ND - - - 5 J - - - -- mg/L 01/12/16 2.9 - 250 - - 110 J - -- - - - -- mg/L 08/01/16 0.07 - 250 0.12 J - 48 J - 1 J - - - ND mg/L 01/17/17 2.9 - 250 ND - 110 J - ND - - - ND mg/L 07/26/17 2.9 - 250 ND - 69 J - ND - - - ND mg/L 02/20/18 2.9 - 250 NO - - - 3 J - - - ND mg/L 02/20/18 5.8 - 250 - - 110 J - - - - - ND mg/L 08/08/18 2.9 5 -- NO - 87 - 3 J - - - ND mg/L 01/15/19 2.9 5 -- ND - 170 - 6.8 - - - ND (Verification Event) mg/L 02/21/19 2.9 5 -- - - 240 - - - - - ND mg/L 08/15/19 2.9 5 -- ND - 15 - 6.5 - - - ND mg/L 01/13/20 2.9 5 -- NO - 210 - 6.3 - - - ND mg/L 08/10/20 2.9 5 -- ND - 100 - 7.3 - - - ND mg/L 01/26/21 2.9 5 -- ND -- 160 -- 7.4 -- -- -- ND mg/L 08/27/21 2.9 5 -- ND -- -- 270 -- ND - - ND mg/L 02/09/22 2.9 5 - ND - -- 290 -- ND -- -- ND mg/L 08/15/22 2.9 5 - ND -- -- 290 -- ND -- -- ND mg/L 01/17/23 2.9 &0 ND 320 ND ND Total Alkalinity as CaCO3 ri 01/31/07 - -- - 32 38 -- -- 22 -- -- -- ND No Standard ni 07/12/07 - -- - 16 B 49 -- -- 26 B -- -- -- 6.4 J No EPA MCL ri 08/06/07 - -- - -- -- 6.0 -- -- -- -- -- - mg/L 01/17/08 - -- - 9.8 J -- 26 -- 25 -- -- -- NO mg/L 07/30/08 - -- - 18 B -- 27 B -- 24 B -- -- -- 8.6 J mg/L 01/22/09 - -- - 24 -- 26 -- 29 -- -- -- NO mg/L 07/14/09 - -- - 11 J -- 22 -- 26 -- -- -- ND mg/L 01/07/10 - -- - 8.7 J -- 22 -- 23 -- -- -- NO ri 07/20/10 - -- - 11 J -- 33 -- 26 -- -- -- ND mg/L 01/31/11 - -- - 18 -- 29 -- 14 J -- -- -- ND mg/L 07/18/11 - -- - ND -- 25 -- 23 -- -- -- ND mg/L 01/25/12 - -- - 12 -- 26 -- 17 -- -- -- NO ri 07/19/12 - -- - 14 -- 33 -- 21 -- -- -- ND mg/L 01/30/13 - -- - 27 -- 33 -- 24 -- -- -- NO mg/L 07/15/13 - -- - 31 -- 25 -- 49 -- -- -- ND mg/L 01/27/14 - -- - 40 -- 37 -- 39 -- -- -- ND mg/L 07/14/14 - -- - 17 -- 43 -- 24 -- -- -- ND mg/L 01/20/15 14 -- - 34 -- 61 -- 38 -- -- -- - mg/L 07/23/15 14 -- - 37 -- 47 -- 43 -- -- -- - mg/L 01/12/16 14 -- - 34 -- 110 -- 24 -- -- -- - mg/L 08/01/16 14 -- - 35 -- 90 -- 48 -- -- -- ND mg/L 01/17/17 14 -- - 42 -- 130 -- 44 -- -- -- ND mg/L 07/26/17 14 -- - 34 -- 91 -- 41 -- -- -- ND ri 02/20/18 14 -- - 29 -- 130 -- 29 - -- -- ND ri 08/08/18 14 15 - 35 -- 120 -- 32 - -- -- ND ri 01/15/19 14 15 - 25 -- 190 -- 32 - -- -- ND (Verification Event) mg/L 02/21/19 14 15 - -- -- 250 -- -- - -- -- ND ri 08/15/19 14 15 - 25 -- 85 -- 82 - -- - ND mg/L 01/13/20 14 15 - 37 -- 240 -- 42 - -- - ND mg/L 08/10/20 14 15 - 16 -- 150 -- 110 - -- - ND mg/L 01/26/21 14 15 - 15 -- 170 -- 100 -- -- -- ND mg/L 08/27/21 14 15 - 22 -- -- 550 -- 54 -- -- ND mg/L 02/09/22 14 15 - 20 -- -- 750 -- 61 -- -- ND mg/L 08/15/22 14 15 - 22 -- -- 940 -- 65 -- -- ND mg/L 01/17/23 2.2 '0 24 970 67 ND Notes: ug/L = micrograms per liter mg/L = milligrams per liter S.U. = Standard Units NTU = Nephelometric Turbidity Units in = millivolts ND = Not detected at the stated reporting limit OS/cm = microsiemens per centimeter -= 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 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) MW-18 was replaced by MW-18R after the July 2007 sampling event. 3) The following dilutions were noted for the August 2022 event: antimony and thallium (2x) all wells; sulfate, chloride and alkalinity at MW-18R (5x). Monitoring Wells MW-18R2 and MW-19R were installed on May 13-14, 2021 4) Pore Water Sample Point (PWS-1) was added as part of 2022 Assessment Monitoring Work Plan and PWS-2 as part of 2023 Work Plan Addendum AX%I) June 2023 Page 1 of 3 Project No. GI-21456818.001 Table 7 Summary of Field Parameters in Groundwater at the C&D Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 C&D Monitoring Wells Detected Monitoring SWS Reporting Units Sample Date Upgradient Downgradient PWS-1 PWS-2 Constituents/Analytes Limit MW-17 MW-18 MW-18R MWA8R2 MW-19 MW-19R 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 -- -- -- S.U. 08/10/20 -- 5.51 -- 5.59 -- 5.46 -- -- -- (verification) S.U. 10/19/20 -- -- -- 5.49 -- 5.41 -- -- S.U. 01 /26/21 -- 5.51 -- 5.46 -- 5.32 -- S.U. 08/27/21 -- 5.55 -- -- 6.25 -- 5.72 -- -- (Verification) S.U. 10/08/21 -- -- -- -- 6.06 -- -- -- S.U. 02/09/22 -- 5.74 -- -- 6.31 -- 5.64 6.12 -- S.U. 08/15/22 -- 5.74 -- -- 6.21 -- 5.71 -- (Verification) S.U. 10/05/22 -- -- -- -- -- -- 5.60 -- -- S.U. 01/17/23 -- 5.37 -- -- 6.4 -- 5.78 6.39 6.83 (Verification) S.U. 04/04/23 -- -- -- -- -- -- 5.80 -- -- 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 -- -- -- N S/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 -- -- -- p S/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 -- -- -- PS/cm 08/10/20 -- 70 -- 737 -- 379 -- -- -- (Verification) PS/cm 10/19/20 -- -- -- 811 -- 279 -- -- -- PS/cm 01/26/21 -- 101 -- 858 -- 433 -- -- -- PS/cm 08/27/21 -- 136 -- -- 1657 -- 140.1 -- -- (Verification) PS/cm 10/08/21 -- -- -- -- 1410 -- -- -- PS/cm 02/09/22 -- 91 -- -- 2166 -- 163.7 930 -- PS/cm 08/15/22 -- 89 -- -- 2459 -- 158.2 -- (Verification) PS/cm 10/05/22 -- -- -- -- -- -- 144.5 -- -- PS/cm 01/17/23 -- 108.90 -- -- 2702 -- 201.2 1170 326.7 (Verification) PS/cm 04/04/23 -- -- -- -- -- -- 194.6 -- -- G\PROJECTS\Rowan\GL21456818.001\OneDrive_1_6-21-2023\Phase 102 Active 1st SA2023\600 Calculations\Rowan Active Tables January 2023 (Recovered) June 2023 Page 2 of 3 Project No. GI-21456818.001 Table 7 Summary of Field Parameters in Groundwater at the C&D Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 C&D Monitoring Wells Detected Monitoring SWS Reporting Units Sample Date Upgradient Downgradient PWS-1 PWS-2 Constituents/Analytes Limit MW-17 MW-18 MW-18R MWA8R2 MW-19 MW-19R 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 -- -- -- o 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 -- -- -- o 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 -- -- -- o 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 -- -- -- o 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 -- -- -- °C 08/10/20 -- 20.1 -- 21.3 -- 21.9 -- -- -- (Verification) °C 10/19/20 -- -- -- 20.1 -- 18.9 -- -- -- ° C 01 /26/21 -- 13.8 -- 14.8 -- 13.0 -- -- -- °C 08/27/21 -- 20.6 -- -- 19.5 -- 16.6 -- -- (Verification) °C 10/08/21 -- -- -- -- 17.2 -- -- -- -- °C 02/09/22 -- 14.3 -- -- 15.4 -- 14.3 16.2 -- °C 08/15/22 -- 18.4 -- -- 17.2 -- 16.8 -- (Verification) °C 10/05/22 -- -- -- -- -- -- 16.1 -- -- °C 01/17/23 -- 15.00 -- -- 14.8 -- 14.8 14.4 16.1 (Verification) °C 04/04/23 -- -- -- -- -- -- 14.8 -- -- 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 -- -- -- NTU 08/10/20 -- 1.12 -- 22.50 -- 9.46 -- -- -- (Verification) NTU 10/19/20 -- -- -- 115 -- 23.3 -- -- -- NTU 01 /26/20 -- 6.10 -- 7.98 -- 8.79 -- -- -- NTU 08/27/21 -- 3.02 -- -- 9.36 -- 2.36 -- -- (Verification) NTU 10/08/21 -- -- -- -- 9.35 -- -- -- NTU 02/09/22 -- 0.10 -- -- 8.29 -- 0.66 168 -- NTU 08/15/22 -- 0.68 -- -- 8.69 -- 19.7 -- (Verification) NTU 10/05/22 -- -- -- -- -- -- 3.48 -- -- NTU 01/17/23 -- 0.17 -- -- 9.81 -- 2.12 872.7 >1000 (Verification) NTU 04/04/23 -- -- -- -- -- -- 2.32 -- -- G\PROJECTS\Rowan\GL21456818.001\OneDrive_1_6-21-2023\Phase 102 Active 1st SA2023\600 Calculations\Rowan Active Tables January 2023 (Recovered) June 2023 Page 3 of 3 Project No. GL21456818.001 Table 7 Summary of Field Parameters in Groundwater at the C&D Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 C&D Monitoring Wells Detected Monitoring SWS Reporting Units Sample Date Upgradient Downgradient PWS-1 PWS-2 Constituents/Analytes Limit MW-17 MW-18 MW-18R MWA8R2 MW-19 MW-19R Oxygen Reduction Potential mV 12/30/05 -- -- -- -- -- -- -- -- -- (field) mV 9/26/06 -- 185 165 -- -- 196 -- -- -- mV 1 /31 /07 -- 210 177 -- -- 185 -- -- -- mV 7/12/07 -- -- -- -- -- -- -- -- mV 8/6/07 -- -- -- -- -- -- -- -- mV 07/20/10 -- -- -- -- -- -- -- -- mV 01 /31 /11 -- 240.2 -- 269.9 -- 271.8 -- -- -- mV 07/18/11 -- 132.0 -- 132.6 -- 142.7 -- -- -- mV 01/25/12 -- -125.1 -- -136.5 -- -151.9 -- -- -- mV 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 -- -- -- mV 01 /27/14 -- 167.1 -- 43.7 -- 149.6 -- -- -- mV 07/14/14 -- 212.7 -- 202.3 -- 277.4 -- -- -- mV 01 /20/15 -- 258.9 -- 181.8 -- 242.0 -- -- -- mV 07/23/15 -- 233.7 -- 242.8 -- 270.9 -- -- -- mV 01 /12/16 -- 228.1 -- 200 -- 353.2 -- -- -- mV 01 /12/16 -- 228.1 -- 200 -- 353.2 -- -- -- mV 08/01 /16 -- 205.9 -- 195.4 -- 309.2 -- -- -- mV 01 /17/17 -- 288.2 -- 236.4 -- 306.0 -- -- -- mV 07/24/17 -- 177.1 -- 220.7 -- 184.8 -- -- -- mV 02/20/18 -- 296.1 -- 348.1 -- 403.5 -- -- -- mV 08/08/18 -- 150.6 -- 179.4 -- 194.0 -- -- -- mV 01 /16/19 -- 169.5 -- 51.5 -- 371.6 -- -- -- (Verification) mV 02/21/19 -- -- -- 159.6 -- -- -- -- -- mV 08/15/19 -- 275.0 -- 191.0 -- 146.3 -- -- -- (Verification) mV 10/03/19 -- -- -- 149.3 -- 153.7 -- -- -- mV 01 /13/20 -- 319.9 -- 314.7 -- 301.6 -- -- -- mV 08/10/20 -- -88.6 -- -271.8 -- -160.8 -- -- -- (Verification) mV 10/19/20 -- -- -- 199.5 -- 85.3 -- -- -- mV 01 /26/21 -- 98.0 -- 96.7 -- 66.5 -- -- -- mV 08/27/21 -- 105.2 -- -- -5.7 -- 165.8 -- -- (Verification) mV 10/08/21 -- -- -- -- 3.9 -- -- -- -- mV 02/09/22 -- 202.5 -- -- 17.9 -- 203.6 28.2 -- mV 08/15/22 -- -21.4 -- -- -243.9 -- 213.4 -- (Verification) mV 10/05/22 -- -- -- -- -- -- 103.5 -- -- mV 01/17/23 -- -19.80 -- -- -16 -- -27.7 -205.4 -135.9 (Verification) mV 04/04/23 -- -- -- -- -- -- 72.3 -- -- Dissolved Oxygen mg/L 12/30/05 -- -- -- -- -- -- -- -- -- (field) mg/L 9/26/06 -- -- -- -- -- -- -- -- -- mg/L 1 /31 /07 -- 10.6 10.5 -- -- 7.6 -- -- -- mg/L 7/12/07 -- -- -- -- -- -- -- -- 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 -- -- -- mg/L 08/10/20 -- 0.36 -- 0.13 -- 0.19 -- -- -- (Verification) mg/L 10/19/20 -- -- -- 0.21 -- 0.15 -- -- -- mg/L 01 /26/21 -- 1.24 -- 0.51 -- 0.37 -- -- -- mg/L 08/27/21 -- 1.15 -- -- 0.17 -- 0.29 -- -- (Verification) mg/L 10/08/21 -- -- -- -- 0.09 -- -- -- -- mg/L 02/09/22 -- 6.84 -- -- 0.43 -- 5.93 4.96 -- mg/L 08/15/22 -- 1.98 -- -- 0.56 -- 1.17 -- (Verification) mg/L 10/05/22 -- -- -- -- -- -- 2.09 -- -- mg/L 01 /17/23 -- 1.44 -- -- 0.33 -- 2.20 1.44 7.8 (Verification) mg/L 04/04/23 -- -- -- -- -- -- 1.18 -- -- 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 G\PROJECTS\Rowan\GL21456818.001\OneDrive_1_6-21-2023\Phase 102 Active 1st SA2023\600 Calculations\Rowan Active Tables January 2023 (Recovered) June 2023 Page 1 of 7 Project No. GL21456818.O01 Table 8 Summary of Detected Constituents in Surface Water 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 MDL MRL SWS Reporting Limit Blanks Active MSW Landfill C&D Landfill SWA SW-2 SW-3 SW-4 SW-6 SW-5 Antimony ug/L 12/30/05 -- -- 30 ND ND -- -- -- -- ND No SW Standard ug/L 09/26/06 -- -- 30 ND ND Dry ND Dry Dry ND ug/L 01/31/07 -- -- 6 ND ND ND ND Dry ND ND ug/L 07/12/07 -- -- 6 1.29 J 1.24 J Dry Dry Dry ND ND ug/L 01/17/08 -- -- 6 ND ND ND ND Dry ND ND ug/L 07/30/08 -- -- 6 2.31 J 1.75 J Dry Dry Dry Dry ND ug/L 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 07/18/11 -- -- 6 0.228 J 0.222 J Dry ND Dry ND ND ug/L 01/24/12 -- -- 6 ND ND ND ND Dry ND 0.259 J ug/L 07/17/12 -- -- 6 0.231 J ND Dry Dry Dry Dry ND ug/L 01/22/13 -- -- 6 ND ND ND ND Dry ND 0.35 J ug/L 07/15/13 -- -- 6 ND ND ND ND -- ND ND ug/L 01/27/14 -- -- 6 ND ND ND ND -- ND ND ug/L 07/15/14 -- -- 6 ND ND Dry ND -- ND ND ug/L 01/20/15 0.220 -- 6 ND ND ND ND -- ND ND ug/L 07/23/15 0.220 -- 6 0.481 J 0.304 J Dry Dry -- Dry ND ug/L 01/12/16 0.220 -- 6 ND ND 0.253 B ND -- ND 0.577 J ug/L 08/01/16 0.220 -- 6 0.372 J ND ND ND -- Dry ND ug/L 01/18/17 0.370 -- 6 ND ND ND 0.444 J -- Dry ND ug/L 07/24/17 0.370 -- 6 ND ND ND Dry -- Dry ND ug/L 02/20/18 0.370 -- 6 ND ND ND ND -- ND ND ug/L 08/08/18 1.85 5.00 -- ND ND ND ND -- ND ND ug/L 01/15/19 1.85 5.00 -- ND ND ND ND -- ND ND ug/L 08/14/19 0.740 2.00 -- ND ND Dry ND ND ND ND ug/L 01/13/20 0.740 2.00 -- ND ND ND ND -- ND ND ug/L 08/11/20 0.740 2.00 -- ND ND Dry ND -- Dry ND ug/L 01/26/21 0.740 2.00 -- ND ND ND ND -- ND ND ug/L 08/25/21 0.740 2.00 -- ND ND Dry ND -- ND ND ug/L 02/09/22 0.740 2.00 -- ND ND ND ND -- ND ND ug/L 08/15/22 0.740 2.00 -- ND ND ND ND -- ND ND ug/L 01/17/23 0.34 5.0 -- ND ND ND ND -- ND ND Arsenic ug/L 12/30/05 -- -- 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 07/12/07 -- -- 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 07/17/12 -- -- 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 5.40 -- 10 ND ND ND ND -- ND ND ug/L 07/23/15 6.80 -- 10 ND ND Dry Dry -- Dry ND ug/L 01/12/16 6.80 -- 10 ND ND ND ND -- ND ND ug/L 08/01/16 6.80 -- 10 ND ND ND ND -- Dry ND ug/L 01/18/17 6.80 -- 10 ND ND ND ND -- Dry ND ug/L 07/24/17 6.80 -- 10 ND ND ND Dry -- Dry ND ug/L 02/20/18 6.80 -- 10 ND ND ND ND -- ND ND ug/L 08/08/18 7.60 10.0 -- ND ND ND ND -- ND ND ug/L 01/15/19 7.60 10.0 -- ND ND ND ND -- ND ND ug/L 08/14/19 7.60 10.0 -- ND ND Dry ND ND ND ND ug/L 01/13/20 7.60 10.0 -- ND ND ND ND -- ND ND ug/L 08/11/20 7.60 10.0 -- ND ND Dry ND -- Dry ND ug/L 01/26/21 7.60 10.0 -- ND ND ND ND -- ND ND ug/L 08/25/21 7.60 10.0 -- ND ND Dry ND -- ND ND ug/L 02/09/22 7.60 10.0 -- ND ND ND ND -- ND ND ug/L 08/15/22 7.60 10.0 -- ND ND ND ND -- ND ND ug/L 01/17/23 6.4 20 -- ND ND ND ND -- ND ND Barium ug/L 12/30/05 -- -- 500 ND ND -- -- -- -- ND Human Health SW Standard = 1000 ug/L ug/L 09/26/06 -- -- 500 ND ND Dry ND Dry Dry ND ug/L 01/31/07 -- -- 100 43.5 79.8 99.5 80.1 Dry 61.8 0.04 J ug/L 07/12/07 -- -- 100 44.1 J 43.1 J Dry Dry Dry 69.1 J ND ug/L 01/17/08 -- -- 100 37.3 J 37.8 J 109 114 Dry 100 ND ug/L 07/30/08 -- -- 100 58.7 J 85.7 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 52.4 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 07/17/12 -- -- 100 40.8 J 40.4 J Dry Dry Dry Dry 1.32 J ug/L 01/22/13 -- -- 100 83.8 J 64 J 96.4 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 07/15/14 -- -- 100 39.7 J 39.2 J Dry 59.7 J -- 58.9 J ND ug/L 01/20/15 1.0 -- 100 44 J 59.8 J 46.8 J 77 J -- 74.4 J 1.01 J ug/L 07/23/15 1.0 -- 100 39.1 J 55.5 J Dry Dry -- Dry ND ug/L 01/12/16 1.0 -- 100 47.5 J 53.8 J 52.4 J 68 J -- 83.7 J 1.94 J ug/L 08/01/16 1.0 -- 100 41.7 J 42.9 J 27 J 61.4 J -- Dry ND ug/L 01/18/17 1.0 -- 100 43.8 J 46.6 J 86.9 J 76.9 J -- Dry ND ug/L 07/24/17 1.0 -- 100 120 48.6 J 56.0 J Dry -- Dry 2.03 J ug/L 02/20/18 1.0 -- 100 53.3 J 52.2 J 120 64.9 J -- 87.1 J ND ug/L 08/08/18 1.10 10.0 -- 109 88.2 174 51.9 -- 83.3 3.31 J ug/L 01/15/19 1.10 10.0 -- 58.4 56.7 92.8 74.7 -- 86.2 ND ug/L 08/14/19 1.10 10.0 -- 115 109 Dry 78.9 -- 79.5 2.69 J ug/L 01/13/20 1.10 10.0 -- 56.4 123 116 67.0 -- 82.5 1.11 J ug/L 08/11/20 1.10 10.0 -- 63.5 61.6 Dry 75.7 -- Dry ND ug/L 01/26/21 1.10 10.0 -- 49.8 53.2 204 97.0 -- 93.4 ND ug/L 08/25/21 1.10 10.0 -- 43.1 46.5 Dry 64.8 -- 124 ND ug/L 02/09/22 1.10 10.0 -- 50.5 49.3 164 102 -- 86.8 ND ug/L 08/15/22 1.10 10.0 -- 48.4 85.1 79.0 57.8 -- 69.1 ND ug/L 01/17/23 4.4 10 -- 47 140 57 71 -- 68 ND G:\PROJECTS\Rowan\GL21456818.001\OneDrive_1_6-21-2023\Phase 102 Active 1st SA 2023\600 Calculations\Rowan Active Tables January 2023 (Recovered) June 2023 Page 2 of 7 Project No. GL21456818.O01 Table 8 Summary of Detected Constituents in Surface Water 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 MDL MRL SWS Reporting Limit Blanks Active MSW Landfill C&D Landfill SWA SW-2 SW-3 SW-4 SW-6 SW-5 Beryllium ug/L 12/30/05 -- -- 2 ND ND -- -- -- -- ND Chronic SW Standard = 6.5 ug/L ug/L 09/26/06 -- -- 2 ND ND Dry ND Dry Dry ND Acute SW Standard = 65 ug/L ug/L 01/31/07 -- -- 1 ND ND ND ND Dry ND ND ug/L 07/12/07 -- -- 1 ND ND Dry Dry Dry ND ND ug/L 01/17/08 -- -- 1 ND ND ND ND Dry ND ND ug/L 07/30/08 -- -- 1 ND ND Dry Dry Dry Dry ND ug/L 01/21/09 -- -- 1 ND ND ND ND Dry ND ND ug/L 07/14/09 -- -- 1 0.608 J 0.316 J Dry ND Dry Dry ND ug/L 01/07/10 -- -- 1 ND ND ND ND -- ND ND ug/L 07/20/10 -- -- 1 ND ND Dry ND Dry Dry ND ug/L 01/31/11 -- -- 1 ND ND ND ND Dry ND ND ug/L 07/18/11 -- -- 1 ND ND Dry ND Dry ND ND ug/L 01/24/12 -- -- 1 ND ND ND ND Dry ND ND ug/L 07/17/12 -- -- 1 ND ND Dry Dry Dry Dry ND ug/L 01/22/13 -- -- 1 ND ND 0.108 J ND Dry ND ND ug/L 07/15/13 -- -- 1 ND ND ND ND -- ND ND ug/L 01/27/14 -- -- 1 ND ND ND ND -- ND ND ug/L 07/15/14 -- -- 1 ND ND Dry ND -- ND ND ug/L 01/20/15 0.1 -- 1 ND ND ND ND -- ND ND ug/L 07/23/15 0.1 -- 1 ND ND Dry Dry -- Dry ND ug/L 01/12/16 0.1 -- 1 ND ND ND ND -- ND ND ug/L 08/01/16 0.1 -- 1 ND ND ND ND -- Dry ND ug/L 01/18/17 0.1 -- 1 ND ND ND ND -- Dry ND ug/L 07/24/17 0.1 -- 1 ND ND ND Dry -- Dry ND ug/L 02/20/18 0.1 -- 1 ND ND ND ND -- ND ND ug/L 08/08/18 0.160 1.00 -- 0.680 J 0.445 J ND ND -- ND ND ug/L 01/15/19 0.160 1.00 -- ND ND ND ND -- ND ND ug/L 08/14/19 0.160 1.00 -- 0.296 J ND Dry ND -- ND ND ug/L 01/13/20 0.160 1.00 -- ND 0.242 J ND ND -- ND ND ug/L 08/11/20 0.160 1.00 -- ND ND Dry ND -- Dry ND ug/L 01/26/21 0.160 1.00 -- ND ND ND ND -- ND ND ug/L 08/25/21 0.160 1.00 -- ND ND Dry ND -- ND ND ug/L 02/09/22 0.160 1.00 -- ND ND ND ND -- ND ND ug/L 08/15/22 0.160 1.00 -- ND ND ND ND -- ND ND ug/L 01/17/23 0.30 4.0 -- ND ND ND 0.30 J -- ND ND Cadmium ug/L 12/30/05 -- -- 1 ND ND -- -- -- -- ND SW Standards (ug/L) = Hardness Based ug/L 09/26/06 -- -- 1 ND ND Dry ND Dry Dry ND SW-1: Chronic = 0.32 Acute = 2.01 ug/L 01/31/07 -- -- 1 ND ND ND ND Dry ND ND SW-2: Chronic = 0.26 Acute = 1.58 ug/L 07/12/07 -- -- 1 ND ND Dry Dry Dry ND ND SW-3: Chronic = 0.49 Acute = 3.21 ug/L 01/17/08 -- -- 1 ND ND ND ND Dry ND ND SW-4: Chronic = 0.18 Acute = 1.01 ug/L 07/30/08 -- -- 1 ND ND Dry Dry Dry Dry 0.7 J SW-5: Chronic = 0.20 Acute = 1.12 ug/L 01/21/09 -- -- 1 ND ND ND ND Dry ND ND ug/L 07/14/09 -- -- 1 0.184 J ND Dry 0.192 J Dry Dry ND ug/L 01/07/10 -- -- 1 0.25 J 0.16 J ND 0.232 J -- 0.151 J ND ug/L 07/20/10 -- -- 1 ND ND Dry ND Dry Dry ND ug/L 01/31/11 -- -- 1 ND ND ND ND Dry ND ND ug/L 07/18/11 -- -- 1 ND ND Dry ND Dry ND ND ug/L 01/24/12 -- -- 1 ND ND ND ND Dry ND ND ug/L 07/17/12 -- -- 1 ND ND Dry Dry Dry Dry ND ug/L 01/22/13 -- -- 1 ND ND ND ND Dry ND ND ug/L 07/15/13 -- -- 1 ND ND ND ND -- 0.385 J ND ug/L 01/27/14 -- -- 1 ND ND 1.92 ND -- ND ND ug/L 07/15/14 -- -- 1 ND ND Dry ND -- ND ND ug/L 01/20/15 0.360 -- 1 ND ND ND ND -- ND ND ug/L 07/23/15 0.360 -- 1 ND ND Dry Dry -- Dry ND ug/L 01/12/16 0.360 -- 1 ND ND ND ND -- ND ND ug/L 08/01/16 0.360 -- 1 ND ND ND ND -- Dry ND ug/L 01/18/17 0.360 -- 1 ND ND ND ND -- Dry ND ug/L 07/24/17 0.360 -- 1 ND ND ND Dry -- Dry ND ug/L 02/20/18 0.360 -- 1 ND ND ND ND -- ND 0.383 J ug/L 08/08/18 0.360 1.00 -- ND ND ND ND -- ND ND ug/L 01/15/19 0.360 1.00 -- ND ND ND ND -- ND ND ug/L 08/14/19 0.360 1.00 -- ND ND Dry ND -- ND ND ug/L 01/13/20 0.360 1.00 -- ND ND ND ND -- ND ND ug/L 08/11/20 0.360 1.00 -- ND ND Dry ND -- Dry ND ug/L 01/26/21 0.360 1.00 -- ND ND ND ND -- ND ND ug/L 08/25/21 0.360 1.00 -- ND ND Dry ND -- ND ND ug/L 02/09/22 0.360 1.00 -- ND ND ND ND -- ND ND ug/L 08/15/22 0.360 1.00 -- ND ND ND ND -- ND ND ug/L 01/17/23 0.44 5.0 -- ND ND ND ND -- ND ND Chromium ug/L 12/30/05 -- -- 10 ND ND -- -- -- -- ND SW Standards (ug/L)= Hardness Based ug/L 09/26/06 -- -- 10 ND ND Dry ND Dry Dry ND SW-1: Chronic = 55.34 Acute = 425.43 ug/L 01/31/07 -- -- 10 ND ND ND ND Dry ND ND SW-2: Chronic = 44.06 Acute = 338.75 ug/L 07/12/07 -- -- 10 ND ND Dry Dry Dry 17 ND SW-3: Chronic = 86.05 Acute = 661.52 ug/L 01/17/08 -- -- 10 ND ND 3.9 J 4.1 J Dry ND ND SW-4: Chronic = 29.15 Acute = 224.08 ug/L 07/30/08 -- -- 10 ND ND Dry Dry Dry Dry 14.5 SW-5: Chronic = 32.10 Acute = 246.78 ug/L 01/21/09 -- -- 10 ND ND ND ND Dry ND ND ug/L 07/14/09 -- -- 10 17.4 7.68 J Dry ND Dry Dry ND ug/L 01/07/10 -- -- 10 ND ND ND ND -- ND ND ug/L 07/20/10 -- -- 10 3.19 J 3.14 J Dry ND Dry Dry ND ug/L 01/31/11 -- -- 10 ND ND 3.67 J ND Dry ND ND ug/L 07/18/11 -- -- 10 ND ND Dry 2.16 J Dry ND ND ug/L 01/24/12 -- -- 10 1.28 J ND 2.56 J ND Dry 1.16 J ND ug/L 07/17/12 -- -- 10 ND ND Dry Dry Dry Dry ND ug/L 01/22/13 -- -- 10 3.61 B 1.04 B 7.08 B ND Dry ND 1.5 J ug/L 07/15/13 -- -- 10 ND ND 1.64 J ND -- ND ND ug/L 01/27/14 -- -- 10 ND ND 4.06 J ND -- ND ND ug/L 07/15/14 -- -- 10 ND ND Dry ND -- ND ND ug/L 01/20/15 1.40 -- 10 ND ND ND ND -- ND ND ug/L 07/23/15 1.40 -- 10 ND ND Dry Dry -- Dry ND ug/L 01/12/16 1.40 -- 10 ND ND ND ND -- ND ND ug/L 08/01/16 1.40 -- 10 ND ND ND ND -- Dry ND ug/L 01/18/17 1.40 -- 10 ND 4.24 J ND ND -- Dry ND ug/L 07/24/17 1.40 -- 10 9.46 J ND ND Dry -- Dry ND ug/L 02/20/18 1.40 -- 10 ND ND ND ND -- ND ND ug/L 08/08/18 1.40 10.0 -- 8.14 J 11.0 ND ND -- ND 1.66 J ug/L 01/15/19 1.40 10.0 -- 2.51 J 1.52 J 3.52 J ND -- ND ND ug/L 08/14/19 1.40 10.0 -- ND 2.58 J Dry ND -- ND ND ug/L 01/13/20 1.40 10.0 -- ND ND 2.18 J 1.86 J -- 1.51 J ND ug/L 08/11/20 1.40 10.0 -- 1.74 J ND Dry ND -- Dry ND ug/L 01/26/21 1.40 10.0 -- 1.47 J ND 4.65 J ND -- ND ND ug/L 08/25/21 1.40 10.0 -- ND ND Dry ND -- ND ND ug/L 02/09/22 1.40 10.0 -- ND ND 2.46 J ND -- ND ND ug/L 08/15/22 1.40 10.0 -- ND 1.66 J ND ND -- ND ND ug/L 01/17/23 1.1 10 -- 2.3 J 1.7 J ND 1.4 J -- 1.1 J ND G:\PROJECTS\Rowan\GL21456818.001\OneDrive_1_6-21-2023\Phase 102 Active 1st SA 2023\600 Calculations\Rowan Active Tables January 2023 (Recovered) June 2023 Page 3 of 7 Project No. GL21456818.O01 Table 8 Summary of Detected Constituents in Surface Water 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 MDL MRL SWS Reporting Limit Blanks Active MSW Landfill C&D Landfill SWA SW-2 SW-3 SW-4 SW-6 SW-5 Cobalt ug/L 12/30/05 -- -- 10 ND ND -- -- -- -- ND No SW Standard ug/L 09/26/06 -- -- 10 ND ND Dry ND Dry Dry ND ug/L 01/31/07 -- -- 10 ND ND 6.4 J 2 J Dry ND ND ug/L 07/12/07 -- -- 10 ND ND Dry Dry Dry ND ND ug/L 01/17/08 -- -- 10 ND ND 4.7 J 2.2 J Dry 4.5 J ND ug/L 07/30/08 -- -- 10 ND 2.1 J Dry Dry Dry Dry ND ug/L 01/21/09 -- -- 10 1.4 J ND 8.3 J 1.6 J Dry 1.1 J ND ug/L 07/14/09 -- -- 10 9.14 J 2.6 J Dry 12.6 Dry Dry ND ug/L 01/07/10 -- -- 10 1.14 J 0.818 J 13.9 2.02 J -- 2.48 J ND ug/L 07/20/10 -- -- 10 2.17 J 2.5 J Dry 1.71 J Dry Dry ND ug/L 01/31/11 -- -- 10 1.15 J ND 3.42 J ND Dry 2.63 J ND ug/L 07/18/11 -- -- 10 ND 1.19 J Dry ND Dry 1.24 J ND ug/L 01/24/12 -- -- 10 ND ND 2.62 J ND Dry 1.47 J ND ug/L 07/17/12 -- -- 10 ND ND Dry Dry Dry Dry ND ug/L 01/22/13 -- -- 10 2.63 J ND 3.4 J 1.22 J Dry ND ND ug/L 07/15/13 -- -- 10 ND ND 1.98 J ND -- 1.47 J ND ug/L 01/27/14 -- -- 10 1.37 J 1.29 J 8.09 J 1.75 J -- 1.75 J ND ug/L 07/15/14 -- -- 10 ND ND Dry 1.31 J -- ND ND ug/L 01/20/15 1.10 -- 10 1.16 J 2.43 J 1.92 J ND -- 1.83 J ND ug/L 07/23/15 1.10 -- 10 1.51 J 1.64 J Dry Dry -- Dry ND ug/L 01/12/16 1.10 -- 10 ND ND 1.74 J ND -- ND ND ug/L 08/01/16 1.10 -- 10 ND ND ND ND -- Dry ND ug/L 01/18/17 1.10 -- 10 ND ND 2.68 J ND -- Dry ND ug/L 07/24/17 1.10 -- 10 6.41 J ND 1.14 J Dry -- Dry ND ug/L 02/20/18 1.10 -- 10 1.23 B 1.45 B ND 1.82 B -- 2.17 B 1.22 J ug/L 08/08/18 1.40 10.0 -- 5.27 J 3.36 J 12.1 1.45 J -- 2.57 J ND ug/L 01/15/19 1.40 10.0 -- ND ND 4.65 J ND -- 1.84 J ND ug/L 08/14/19 1.40 10.0 -- 4.45 J 4.60 J Dry ND -- 4.21 J ND ug/L 01/13/20 1.40 10.0 -- ND 8.47 J 2.82 J ND -- 1.86 J ND ug/L 08/11/20 1.40 10.0 -- ND ND Dry ND -- Dry ND ug/L 01/26/21 1.40 10.0 -- ND ND 5.93 J ND -- 9.27 J ND ug/L 08/25/21 1.40 10.0 -- ND ND Dry ND -- 17.8 ND ug/L 02/09/22 1.40 10.0 -- 1.54 J ND 3.02 J ND -- 4.69 J ND ug/L 08/15/22 1.40 10.0 -- ND 4.62 J ND ND -- 5.70 J ND ug/L 01/17/23 1.4 10 -- ND 7.5 J ND ND -- 1.6 J ND Copper ug/L 12/30/05 -- -- 200 ND ND -- -- -- -- ND SW Standards (ug/L)= ug/L 09/26/06 -- -- 200 ND ND Dry ND Dry Dry ND (Acute = Hardness based) ug/L 01/31/07 -- -- 10 ND ND ND ND Dry ND ND SW-1: Chronic = 2.7 Acute = 9.60 ug/L 07/12/07 -- -- 10 ND ND Dry Dry Dry ND ND SW-2: Chronic = 2.7 Acute = 7.39 ug/L 01/17/08 -- -- 10 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 -- -- 10 2.8 J 3.8 J Dry Dry Dry Dry ND SW-4: Chronic = 2.7 Acute = 4.59 ug/L 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 ug/L 01/07/10 -- -- 10 ND ND ND ND -- ND ND ug/L 07/20/10 -- -- 10 7.17 J 7.51 J Dry ND Dry Dry ND ug/L 01/31/11 -- -- 10 ND ND 3.54 J ND Dry ND ND ug/L 07/18/11 -- -- 10 ND 2.33 J Dry ND Dry ND ND ug/L 01/24/12 -- -- 10 3.71 B 3.17 B 5.04 B 2.52 B Dry 2.66 B 2.78 J ug/L 07/17/12 -- -- 10 ND ND Dry Dry Dry Dry ND ug/L 01/22/13 -- -- 10 4.03 J ND 7.1 J ND Dry ND ND ug/L 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 ug/L 07/15/14 -- -- 10 ND ND Dry ND -- ND ND ug/L 01/20/15 1.60 -- 10 ND ND ND ND -- ND ND ug/L 07/23/15 1.60 -- 10 1.83 B ND Dry Dry -- Dry 1.9 J ug/L 01/12/16 1.60 -- 10 ND ND 2.04 B ND -- ND 3.52 J ug/L 08/01/16 1.60 -- 10 ND ND 2.11 J ND -- Dry ND ug/L 01/18/17 1.60 -- 10 3.86 B 4.56 B 3.62 B 2.2 B -- Dry 4.8 J ug/L 07/24/17 1.60 -- 10 15.4 B 3.49 B 2.04 B Dry -- Dry 4.18 J ug/L 02/20/18 1.60 -- 10 ND ND 2.88 J ND -- ND ND ug/L 08/08/18 1.60 10.0 -- 6.99 J 4.73 J ND ND -- ND ND ug/L 01/15/19 1.60 10.0 -- 2.49 J 1.74 J 6.58 J ND -- ND ND ug/L 08/14/19 1.60 10.0 -- 22.9 17.4 Dry ND -- ND 2.38 J ug/L 01/13/20 1.60 10.0 -- 2.78 J 9.52 J 5.02 J 9.34 J -- 4.24 J ND ug/L 08/11/20 1.60 10.0 -- 5.39 J 5.21 J Dry ND -- Dry 1.95 J ug/L 01/26/21 1.60 10.0 -- 2.20 J 2.36 J 2.68 J 3.19 J -- ND ND ug/L 08/25/21 1.60 10.0 -- ND ND Dry ND -- ND ND ug/L 02/09/22 1.60 10.0 -- ND ND 4.96 J 1.87 J -- ND ND ug/L 08/15/22 1.60 10.0 -- ND 3.25 J 3.71 J ND -- ND ND ug/L 01/17/23 3.2 20 -- 3.3 J ND ND ND -- ND ND Lead ug/L 12/30/05 -- -- 10 ND ND -- -- -- -- ND SW Standards (ug/L)= Hardness Based ug/L 09/26/06 -- -- 10 ND ND Dry ND Dry Dry ND SW-1: Chronic = 1.70 Acute = 43.71 ug/L 01/31/07 -- -- 10 ND ND ND ND Dry ND ND SW-2: Chronic = 1.25 Acute = 32.15 ug/L 07/12/07 -- -- 10 ND ND Dry Dry Dry -- ND SW-3: Chronic = 3.07 Acute = 78.72 ug/L 01/17/08 -- -- 10 ND ND ND 5.3 J Dry ND ND SW-4: Chronic = 0.71 Acute = 18.32 ug/L 07/30/08 -- -- 10 ND 2.4 J Dry Dry Dry Dry ND SW-5: Chronic = 0.81 Acute = 20.90 ug/L 01/21/09 -- -- 10 ND ND ND ND Dry ND ND ug/L 07/14/09 -- -- 10 10.3 B 7.03 B Dry ND Dry Dry 3.4 J ug/L 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 ug/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 ug/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 2.10 -- 10 ND ND ND ND -- ND ND ug/L 07/23/15 3.10 -- 10 ND ND Dry Dry -- Dry ND ug/L 01/12/16 3.10 -- 10 ND ND ND ND -- ND ND ug/L 08/01/16 3.10 -- 10 ND ND ND ND -- Dry ND ug/L 01/18/17 3.10 -- 10 ND ND ND ND -- Dry ND ug/L 07/24/17 3.10 -- 10 5.21 J ND ND Dry -- Dry ND ug/L 02/20/18 3.10 -- 10 ND ND ND ND -- ND ND ug/L 08/08/18 3.10 10.0 -- 5.94 J ND ND ND -- ND ND ug/L 01/15/19 3.10 10.0 -- ND ND ND ND -- ND ND ug/L 08/14/19 3.10 10.0 -- 7.77 J 5.46 J Dry ND -- ND ND ug/L 01/13/20 3.10 10.0 -- ND 6.70 J ND 3.60 J -- ND ND ug/L 08/11/20 3.10 10.0 -- ND ND Dry ND -- Dry ND ug/L 01/26/21 3.10 10.0 -- ND ND ND ND -- ND ND ug/L 08/25/21 3.10 10.0 -- ND ND Dry ND -- ND ND ug/L 02/09/22 3.10 10.0 -- ND ND ND ND -- ND ND ug/L 08/15/22 3.10 10.0 -- ND 3.45 J ND ND -- ND ND ug/L 01/17/23 6.6 10 -- ND ND ND ND -- ND ND G:\PROJECTS\Rowan\GL21456818.001\OneDrive_1_6-21-2023\Phase 102 Active 1st SA 2023\600 Calculations\Rowan Active Tables January 2023 (Recovered) June 2023 Page 4 of 7 Project No. GL21456818.O01 Table 8 Summary of Detected Constituents in Surface Water 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 MDL MRL SWS Reporting Limit Blanks Active MSW Landfill C&D Landfill SWA SW-2 SW-3 SW-4 SW-6 SW-5 Nickel ug/L 12/30/05 -- -- 50 ND ND -- -- -- -- ND SW Standards (ug/L)= Hardness Based ug/L 09/26/06 -- -- 50 ND ND Dry ND Dry Dry ND SW-1: Chronic = 38.46 Acute = 346.27 ug/L 01/31/07 -- -- 50 ND ND ND ND Dry ND ND SW-2: Chronic = 30.39 Acute = 273.65 ug/L 07/12/07 -- -- 50 ND ND Dry Dry Dry 10.3 J ND SW-3: Chronic = 60.68 Acute = 546.33 ug/L 01/17/08 -- -- 50 ND ND 2.2 J 2.4 J Dry ND ND SW-4: Chronic = 19.83 Acute = 178.58 ug/L 07/30/08 -- -- 50 ND ND Dry Dry Dry Dry 12.4 J SW-5: Chronic = 21.91 Acute = 197.29 ug/L 01/21/09 -- -- 50 ND ND 2.3 J 2 J Dry 2.1 J ND ug/L 07/14/09 -- -- 50 7.02 J 3.67 B Dry 2.06 B Dry Dry 0.882 J ug/L 01/07/10 -- -- 50 ND ND ND ND -- ND ND ug/L 07/20/10 -- -- 50 ND ND Dry ND Dry Dry ND ug/L 01/31/11 -- -- 50 ND ND ND ND Dry ND ND ug/L 07/18/11 -- -- 50 ND ND Dry ND Dry ND ND ug/L 01/24/12 -- -- 50 ND ND 2.63 J ND Dry 1.85 J ND ug/L 07/17/12 -- -- 50 ND ND Dry Dry Dry Dry ND ug/L 01/22/13 -- -- 50 ND ND 2.5 J ND Dry ND ND ug/L 07/15/13 -- -- 50 ND ND ND ND -- ND ND ug/L 01/27/14 -- -- 50 ND ND 3.7 J ND -- ND ND ug/L 07/15/14 -- -- 50 ND ND Dry ND -- ND ND ug/L 01 /20/15 1.80 -- 50 ND ND ND ND -- ND ND ug/L 07/23/15 1.80 -- 50 ND ND Dry Dry -- Dry ND ug/L 01/12/16 1.80 -- 50 ND ND ND ND -- ND ND ug/L 08/01/16 2.20 -- 50 ND ND ND ND -- Dry ND ug/L 01/18/17 2.20 -- 50 ND 2.77 J ND ND -- Dry ND ug/L 07/24/17 2.20 -- 50 5.42 J ND ND Dry -- Dry ND ug/L 02/20/18 2.20 -- 50 ND ND ND ND -- 4.20 J ND ug/L 08/08/18 2.20 10.0 -- 6.82 J 3.87 J 2.34 J ND -- 3.52 J ND ug/L 01/15/19 2.20 10.0 -- ND ND 3.39 J ND -- 8.18 J ND ug/L 08/14/19 2.20 10.0 -- ND 2.47 J Dry ND -- 8.37 J ND ug/L 01/13/20 2.20 10.0 -- ND ND 3.85 J 2.24 J -- ND ND ug/L 08/11/20 2.20 10.0 -- ND ND Dry ND -- Dry ND ug/L 01/26/21 2.20 10.0 -- ND ND 6.01 J ND -- 6.27 J ND ug/L 08/25/21 2.20 10.0 -- ND ND Dry ND -- 9.29 J ND ug/L 02/09/22 2.20 10.0 -- ND ND 7.58 J ND -- ND ND ug/L 08/15/22 2.20 10.0 -- ND ND ND ND -- 2.55 J ND ug/L 01/17/23 3.3 40 -- ND 4.9 J ND ND -- ND ND Selenium ug/L 12/30/05 -- -- 20 ND ND -- -- -- -- ND SW Standard = 5 ug/L ug/L 09/26/06 -- -- 20 ND ND Dry ND Dry Dry ND ug/L 01/31/07 -- -- 10 3.2 B ND ND ND Dry ND 2 J ug/L 07/12/07 -- -- 10 ND ND Dry Dry Dry ND ND ug/L 01/17/08 -- -- 10 ND ND ND ND Dry ND ND ug/L 07/30/08 -- -- 10 ND ND Dry Dry Dry Dry ND ug/L 01/21/09 -- -- 10 ND ND ND ND Dry 3.3 J ND ug/L 07/14/09 -- -- 10 ND ND Dry ND Dry Dry ND 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 ND ND ND ND Dry ND ND ug/L 07/18/11 -- -- 10 ND ND Dry ND Dry ND ND ug/L 01/24/12 -- -- 10 ND ND ND ND Dry ND ND ug/L 07/17/12 -- -- 10 ND ND Dry Dry Dry Dry ND ug/L 01/22/13 -- -- 10 ND ND ND 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 -- 10 ND ND ND ND -- ND ND ug/L 07/23/15 5 -- 10 ND ND Dry Dry -- Dry ND ug/L 01/12/16 5 -- 10 ND ND ND ND -- ND ND ug/L 08/01/16 6.20 -- 10 ND ND ND ND -- Dry ND ug/L 01/18/17 6.20 -- 10 ND ND ND ND -- Dry ND ug/L 07/24/17 6.20 -- 10 ND ND ND Dry -- Dry ND ug/L 02/20/18 6.20 -- 10 ND ND ND ND -- ND ND ug/L 08/08/18 6.20 10.0 -- ND ND ND ND -- ND ND ug/L 01/15/19 6.20 10.0 -- ND ND ND ND -- ND ND ug/L 08/14/19 6.20 10.0 -- ND ND Dry ND -- ND ND ug/L 01/13/20 6.20 10.0 -- ND ND ND ND -- ND ND ug/L 08/11/20 6.20 10.0 -- ND ND Dry ND -- Dry ND ug/L 01 /26/21 6.20 10.0 -- ND ND ND ND -- ND ND ug/L 08/25/21 6.20 10.0 -- ND ND Dry ND -- ND ND ug/L 02/09/22 6.20 10.0 -- ND ND ND ND -- ND ND ug/L 08/15/22 6.20 10.0 -- ND ND ND ND -- ND ND ug/L 01/17/23 10 20 -- ND ND ND ND -- ND ND Silver ug/L 12/01/05 -- -- 10 ND ND -- -- -- ND ND Chronic SW Standard = 0.06 ug/L ug/L 09/26/06 -- -- 10 ND ND Dry ND Dry Dry ND Acute SW Standard = Hardness Based ug/L 01/31/07 -- -- 10 ND ND ND ND Dry ND ND SW-1 = 1.74 ug/L 07/12/07 -- -- 10 ND ND Dry Dry Dry ND ND SW-2 = 1.08 ug/L 01/17/08 -- -- 10 ND ND ND ND Dry ND ND SW-3 = 4.40 ug/L 07/30/08 -- -- 10 ND ND Dry Dry Dry Dry ND SW-4 = 0.45 ug/L 01/21/09 -- -- 10 ND ND ND ND Dry ND ND SW-5 = 0.55 ug/L 07/14/09 -- -- 10 ND ND Dry ND Dry Dry ND ug/L 01/07/10 -- -- 10 ND ND 0.676 J ND -- ND ND ug/L 07/20/10 -- -- 10 ND ND Dry ND Dry Dry ND ug/L 01/31/11 -- -- 10 ND ND ND ND Dry ND ND ug/L 07/18/11 -- -- 10 ND ND Dry ND Dry ND ND ug/L 01/24/12 -- -- 10 ND ND ND ND Dry ND ND ug/L 07/17/12 -- -- 10 ND ND Dry Dry Dry Dry ND ug/L 01/22/13 -- -- 10 ND ND ND 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 1.90 -- 10 2.23 B 2.31 B 2.45 B 2.63 B -- 2.71 B 3.39 J ug/L 07/23/15 1.90 -- 10 ND ND Dry Dry -- Dry ND ug/L 01/12/16 1.90 -- 10 ND ND ND ND -- ND ND ug/L 08/01/16 1.90 -- 10 ND ND ND ND -- Dry ND ug/L 01/18/17 1.90 -- 10 ND ND ND ND -- Dry ND ug/L 07/24/17 1.90 -- 10 ND ND ND Dry -- Dry ND ug/L 02/20/18 1.90 -- 10 ND ND ND ND -- ND ND ug/L 08/08/18 1.90 10.0 -- ND ND ND ND -- ND ND ug/L 01/15/19 1.90 10.0 -- ND ND ND ND -- ND ND ug/L 08/14/19 1.90 10.0 -- ND ND Dry ND -- ND ND ug/L 01/13/20 1.90 10.0 -- ND ND ND ND -- ND ND ug/L 08/11/20 1.90 10.0 -- ND ND Dry ND -- Dry 2.17 J ug/L 01 /26/21 1.90 10.0 -- ND ND ND ND -- ND ND ug/L 08/25/21 1.90 10.0 -- ND ND Dry ND -- ND ND ug/L 02/09/22 1.90 10.0 -- ND ND ND ND -- ND ND ug/L 08/15/22 1.90 10.0 -- ND ND ND ND -- ND ND ug/L 01/17/23 1.5 10 -- ND ND ND ND -- ND ND I} G:\PROJECTS\Rowan\GL21456818.001\OneDrive_1_6-21-2023\Phase 102 Active 1st SA 2023\600 Calculations\Rowan Active Tables January 2023 (Recovered) June 2023 Page 5 of 7 Project No. GL21456818.O01 Table 8 Summary of Detected Constituents in Surface Water 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 MDL MRL SWS Reporting Limit Blanks Active MSW Landfill C&D Landfill SWA SW-2 SW-3 SW-4 SW-6 SW-5 Thallium ug/L 12/30/05 -- -- 10 ND ND -- -- -- -- ND No SW Standard ug/L 09/26/06 -- -- 10 ND ND Dry ND Dry Dry ND ug/L 01/31/07 -- -- 5.5 ND ND ND ND Dry ND ND ug/L 07/12/07 -- -- 5.5 ND ND Dry Dry Dry ND ND ug/L 01/17/08 -- -- 5.5 ND ND 0.052 J 0.071 J Dry 0.112 J ND ug/L 07/30/08 -- -- 5.5 ND ND Dry Dry Dry Dry ND ug/L 01/21/09 -- -- 5.5 ND ND ND ND Dry ND ND ug/L 07/14/09 -- -- 5.5 0.086 J 0.077 J Dry 0.037 J Dry Dry ND ug/L 01/07/10 -- -- 5.5 ND ND ND ND -- ND ND ug/L 07/20/10 -- -- 5.5 ND ND Dry ND Dry Dry ND ug/L 01/31/11 -- -- 5.5 ND ND ND ND Dry ND ND ug/L 07/18/11 -- -- 5.5 ND ND Dry ND Dry ND ND ug/L 01/24/12 -- -- 5.5 ND ND ND ND Dry ND ND ug/L 07/17/12 -- -- 5.5 ND ND Dry Dry Dry Dry ND ug/L 01/22/13 -- -- 5.5 ND ND ND ND Dry ND ND ug/L 07/15/13 -- -- 5.5 ND ND ND ND -- ND ND ug/L 01/27/14 -- -- 5.5 ND ND ND ND -- ND ND ug/L 07/15/14 -- -- 5.5 ND ND Dry ND -- ND ND ug/L 01/20/15 0.110 -- 5.5 ND ND ND ND -- ND ND ug/L 07/23/15 0.110 -- 5.5 ND ND Dry Dry -- Dry ND ug/L 01/12/16 0.110 -- 5.5 ND ND ND ND -- ND ND ug/L 08/01/16 0.110 -- 5.5 ND ND ND ND -- Dry ND ug/L 01/18/17 0.110 -- 5.5 0.585 J ND 0.148 J ND -- Dry ND ug/L 07/24/17 0.110 -- 5.5 0.203 J 0.152 J 0.133 J Dry -- Dry ND ug/L 02/20/18 0.110 -- 5.5 ND ND ND ND -- ND ND ug/L 08/08/18 0.550 5.00 -- ND ND ND ND -- ND ND ug/L 01/15/19 0.550 5.00 -- ND ND ND ND -- ND ND ug/L 08/14/19 0.220 2.00 -- ND ND Dry ND -- ND ND ug/L 01/13/20 0.220 2.00 -- ND ND ND ND -- ND ND ug/L 08/11/20 0.220 2.00 -- ND ND Dry ND -- Dry ND ug/L 01/26/21 0.220 2.00 -- ND ND ND ND -- ND ND ug/L 08/25/21 0.220 2.00 -- ND ND Dry ND -- ND ND ug/L 02/09/22 0.0600 0.100 -- ND ND 0.0765 J ND -- ND ND ug/L 08/15/22 0.220 2.00 -- ND ND ND ND -- ND ND ug/L 01/17/23 0.26 1.0 -- ND ND ND ND -- ND ND Vanadium ug/L 12/30/05 -- -- 40 ND ND -- -- -- -- ND No SW Standard ug/L 09/26/06 -- -- 40 ND ND Dry ND Dry Dry ND ug/L 01/31/07 -- -- 25 ND ND ND ND Dry ND ND ug/L 07/12/07 -- -- 25 3 J ND Dry Dry Dry ND ND ug/L 01/17/08 -- -- 25 1 J 1.2 J 11.6 J 14.2 J Dry 4.5 J ND ug/L 07/30/08 -- -- 25 2.1 J 8.4 J Dry Dry Dry Dry ND ug/L 01/21/09 -- -- 25 1.4 J ND ND ND Dry ND ND ug/L 07/14/09 -- -- 25 50.2 28 Dry 1.94 J Dry Dry ND ug/L 01/07/10 -- -- 25 2.9 J 2.95 J 1.71 J ND -- 3.21 J ND ug/L 07/20/10 -- -- 25 22.9 J 23 J Dry ND Dry Dry ND ug/L 01/31/11 -- -- 25 1.55 J 1.81 J 12 J ND Dry 3.17 J ND ug/L 07/18/11 -- -- 25 4.19 J 5.6 J Dry 2.22 J Dry ND ND ug/L 01/24/12 -- -- 25 2.26 J 1.8 J 6.5 J ND Dry 1.84 J ND ug/L 07/17/12 -- -- 25 3.68 J 3.8 J Dry Dry Dry Dry ND ug/L 01/22/13 -- -- 25 14 J 4.5 J 23.8 J ND Dry 2.78 J ND ug/L 07/15/13 -- -- 25 5.53 J 7.3 J 7.65 J 4.07 J -- 1.54 J ND ug/L 01/27/14 -- -- 25 4.1 J 4.09 J 13.1 J 2.3 J -- ND ND ug/L 07/15/14 -- -- 25 3.72 J 3.5 J Dry 1.93 J -- 2.4 J ND ug/L 01/20/15 1.40 -- 25 2.06 J 2.46 J 3.24 J 1.51 J -- 3.78 J ND ug/L 07/23/15 1.40 -- 25 4.23 J 3.4 J Dry Dry -- Dry ND ug/L 01/12/16 1.40 -- 25 2.52 J 2.49 J 1.64 J ND -- ND ND ug/L 08/01/16 1.40 -- 25 4.25 J 4.26 J 4.56 J 2.06 J -- Dry ND ug/L 01/18/17 1.40 -- 25 2.19 J 2.51 J 3.46 J ND -- Dry ND ug/L 07/24/17 1.40 -- 25 36.6 4.89 J 3.80 J Dry -- Dry ND ug/L 02/20/18 1.40 -- 25 4.74 J 5.34 J 4.32 J 2.48 J -- 3.67 J ND ug/L 08/08/18 1.40 10.0 -- 31.2 23.1 1.62 J 2.02 J -- 2.44 J ND ug/L 01/15/19 1.40 10.0 -- 6.68 J 6.19 J 10.3 ND -- ND ND ug/L 08/14/19 1.40 10.0 -- 18.3 24.4 Dry 1.81 J -- ND ND ug/L 01/13/20 1.40 10.0 -- 5.03 J 18.9 6.23 J 5.93 J -- 7.82 J ND ug/L 08/11/20 1.40 10.0 -- 9.15 J 7.21 J Dry 1.42 J -- Dry ND ug/L 01/26/21 1.40 10.0 -- 3.17 J 2.97 J 3.39 J ND -- ND ND ug/L 08/25/21 1.40 10.0 -- 3.33 J 3.51 J Dry 1.64 J -- ND ND ug/L 02/09/22 1.40 10.0 -- 2.57 J 1.68 J 4.43 J ND -- ND ND ug/L 08/15/22 1.40 10.0 -- 5.40 J 12.2 6.86 J 2.29 J -- 1.78 J ND ug/L 01/17/23 1.0 10 -- 5.9 J 4.5 J ND 2.3 J -- 2.4 J ND Zinc ug/L 12/30/05 -- -- 50 ND ND -- -- -- -- ND SW Standards (ug/L)= Hardness Based ug/L 09/26/06 -- -- 50 ND ND Dry ND Dry Dry ND SW-1: Chronic = 87.33 Acute = 86.62 ug/L 01/31/07 -- -- 10 ND ND ND 1.7 J Dry ND ND SW-2: Chronic = 68.99 Acute = 68.43 ug/L 07/12/07 -- -- 10 7.4 J ND Dry Dry Dry 7.8 J ND SW-3: Chronic = 137.87 Acute = 136.76 ug/L 01/17/08 -- -- 10 2.6 J 4.1 J 28 25.3 Dry 5.4 J ND SW-4: Chronic = 44.99 Acute = 44.62 ug/L 07/30/08 -- -- 10 5.8 J 22.3 Dry Dry Dry Dry ND SW-5: Chronic = 49.71 Acute = 49.31 ug/L 01/21/09 -- -- 10 ND ND 40.5 5.7 J Dry ND ND ug/L 07/14/09 -- -- 10 37.5 24.6 Dry 12.1 Dry Dry ND ug/L 01/07/10 -- -- 10 2.81 J 2.74 J 32.7 2.82 J -- 5.91 J ND ug/L 07/20/10 -- -- 10 8.25 J 14.6 Dry 4.02 J Dry Dry ND ug/L 01/31/11 -- -- 10 ND 4.26 J 19 ND Dry 9.27 J ND ug/L 07/18/11 -- -- 10 ND 4.3 J Dry 8.28 J Dry ND ND ug/L 01/24/12 -- -- 10 ND ND 10.2 B ND Dry ND 9.27 J ug/L 07/17/12 -- -- 10 ND ND Dry Dry Dry Dry ND ug/L 01/22/13 -- -- 10 8.55 J ND 19.8 ND Dry ND ND ug/L 07/15/13 -- -- 10 ND ND ND ND -- 8.63 J ND ug/L 01/27/14 -- -- 10 4.41 J 4.86 J 24.9 4.9 J -- 33.5 ND ug/L 07/15/14 -- -- 10 ND ND Dry ND -- ND ND ug/L 01/20/15 3.80 -- 10 ND ND ND ND -- ND ND ug/L 07/23/15 3.80 -- 10 ND ND Dry Dry -- Dry ND ug/L 01/12/16 3.80 -- 10 ND 3.89 J 11.2 ND -- ND ND ug/L 08/01/16 4.40 -- 10 ND ND 4.65 J ND -- Dry ND ug/L 01/18/17 4.40 -- 10 ND ND 16.5 ND -- Dry ND ug/L 07/24/17 4.40 -- 10 63.1 ND ND Dry -- Dry ND ug/L 02/20/18 4.40 -- 10 ND ND 9.18 J ND -- ND ND ug/L 08/08/18 4.40 10.0 -- 21.8 14.6 5.41 J ND -- ND ND ug/L 01/15/19 4.40 10.0 -- ND ND 10.4 ND -- ND ND ug/L 08/14/19 4.40 10.0 -- 16.1 17.0 Dry 5.23 J -- 4.77 J ND ug/L 01/13/20 4.40 10.0 -- 4.75 J 19.3 10.0 18.3 -- 9.97 J ND ug/L 08/11/20 4.40 10.0 -- 4.77 J ND Dry ND -- Dry ND ug/L 01/26/21 4.40 10.0 -- ND ND 40.7 ND -- ND ND ug/L 08/25/21 4.40 10.0 -- 5.18 J ND Dry ND -- ND ND ug/L 02/09/22 4.40 10.0 -- 5.71 J 5.75 J 14.8 ND -- ND ND ug/L 08/15/22 4.40 10.0 -- 6.82 J 18.9 25.7 ND -- ND ND ug/L 01/17/23 8.7 20 -- ND ND ND ND -- ND ND G:\PROJECTS\Rowan\GL21456818.001\OneDrive_1_6-21-2023\Phase 102 Active 1st SA 2023\600 Calculations\Rowan Active Tables January 2023 (Recovered) June 2023 Page 6 of 7 Project No. GL21456818.O01 Table 8 Summary of Detected Constituents in Surface Water 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 MDL MRL SWS Reporting Limit Blanks Active MSW Landfill C&D Landfill SWA SW-2 SW-3 SW-4 SW-6 SW-5 Acetone ug/L 12/30/05 -- -- 20 ND ND -- -- -- -- ND No SW Standard ug/L 09/26/06 -- -- 100 ND ND Dry ND Dry Dry ND ug/L 01/31/07 -- -- 100 ND ND 120 ND Dry ND ND (Verification) ug/L 04/13/07 -- -- 100 -- -- 25 J -- -- -- ND ug/L 07/12/07 -- -- 100 ND ND Dry Dry Dry ND 0.93 J ug/L 01/17/08 -- -- 100 ND ND ND 14 J Dry ND ND ug/L 07/30/08 -- -- 100 ND ND Dry Dry Dry Dry ND ug/L 01/21/09 -- -- 100 ND ND ND ND Dry ND ND ug/L 07/14/09 -- -- 100 4.3 J ND Dry ND Dry Dry ND ug/L 01/07/10 -- -- 100 ND ND 150 ND -- ND ND (Verification) ug/L 01/20/10 -- -- 100 -- -- 110 -- ND -- ND ug/L 07/20/10 -- -- 100 ND ND Dry ND Dry Dry ND ug/L 01/31/11 -- -- 100 ND ND ND ND Dry ND ND ug/L 07/18/11 -- -- 100 ND ND Dry ND Dry ND ND ug/L 01/24/12 -- -- 100 ND ND ND ND Dry ND ND ug/L 07/17/12 -- -- 100 ND ND Dry Dry Dry Dry ND ug/L 01/22/13 -- -- 100 ND ND ND ND Dry ND ND ug/L 07/15/13 -- -- 100 ND ND ND ND -- ND ND ug/L 01/27/14 -- -- 100 ND ND 100 ND -- ND ND ug/L 07/15/14 -- -- 100 ND ND Dry ND -- ND ND ug/L 01/20/15 1.2 -- 100 ND ND ND ND -- ND ND ug/L 07/23/15 1.2 -- 100 ND ND Dry Dry -- Dry ND ug/L 01/12/16 1.2 -- 100 ND ND ND ND -- ND ND ug/L 08/01/16 10 -- 100 ND ND ND ND -- Dry ND ug/L 01/18/17 10 -- 100 ND ND ND ND -- Dry ND ug/L 07/24/17 10 -- 100 ND ND ND Dry -- Dry 17 J ug/L 02/20/18 10 -- 100 ND ND ND ND -- ND ND ug/L 08/08/18 10 20 -- ND ND ND ND -- ND ND ug/L 01/15/19 10 20 -- ND ND 53 ND -- ND ND (Verification) ug/L 02/21/19 10 20 -- -- -- 65 -- -- -- ND ug/L 08/14/19 10 20 -- ND ND Dry ND -- ND ND ug/L 01/13/20 10 20 -- ND ND 10 J ND -- ND ND ug/L 08/11/20 10 20 -- ND ND Dry ND -- Dry ND ug/L 01 /26/21 10 20 -- ND ND 66 ND -- ND ND ug/L 08/25/21 10 20 -- ND ND Dry ND -- ND 38 ug/L 02/09/22 10 20 -- ND ND ND ND -- ND ND ug/L 08/15/22 10 20 -- ND ND ND ND -- ND 20 ug/L 01/17/23 10 20 -- ND ND ND ND -- ND 42 2-Hexanone ug/L 09/26/06 -- -- 50 ND ND Dry ND Dry -- ND No SW Standard ug/L 01/31/07 -- -- 50 ND ND ND ND Dry ND ND ug/L 07/12/07 -- -- 50 ND ND Dry Dry Dry Dry ND ug/L 01/17/08 -- -- 50 ND ND ND ND Dry ND ND ug/L 07/30/08 -- -- 50 ND ND -- -- -- -- ND ug/L 01/21/09 -- -- 50 ND ND ND ND Dry ND ND ug/L 07/14/09 -- -- 50 ND ND Dry ND Dry Dry ND ug/L 01/07/10 -- -- 50 ND ND 3.2 J ND -- ND ND (Verification) ug/L 01/20/10 -- -- 50 -- -- 7.8 J -- ND -- ND ug/L 07/20/10 -- -- 50 ND ND Dry ND Dry Dry ND ug/L 01/31/11 -- -- 50 ND ND ND ND Dry ND ND ug/L 07/18/11 -- -- 50 ND ND Dry ND Dry ND ND ug/L 01/24/12 -- -- 50 ND ND ND ND Dry ND ND ug/L 07/17/12 -- -- 50 ND ND Dry Dry Dry Dry ND ug/L 01/22/13 -- -- 50 ND ND ND ND Dry ND ND ug/L 07/15/13 -- -- 50 ND ND ND ND -- ND ND ug/L 01/27/14 -- -- 50 ND ND ND ND -- ND ND ug/L 07/15/14 -- -- 50 ND ND Dry ND -- ND ND ug/L 01/20/15 0.88 -- 50 ND ND ND ND -- ND ND ug/L 07/23/15 0.88 -- 50 ND ND Dry Dry -- Dry ND ug/L 01/12/16 0.88 -- 50 ND ND ND ND -- ND ND ug/L 08/01/16 0.88 -- 50 ND ND ND ND -- Dry ND ug/L 01/18/17 0.88 -- 50 ND ND ND ND -- Dry ND ug/L 07/24/17 0.88 -- 50 ND ND ND Dry -- Dry ND ug/L 02/20/18 0.88 -- 50 ND ND ND ND -- ND ND ug/L 08/08/18 0.88 5.0 -- ND ND ND ND -- ND ND ug/L 01/15/19 0.88 5.0 -- ND ND 6.3 ND -- ND ND ug/L 02/21/19 0.88 5.0 -- -- -- 7.6 -- -- -- ND ug/L 08/14/19 0.88 5.0 -- ND ND Dry ND -- ND ND ug/L 01/13/20 0.88 5.0 -- ND ND ND ND -- ND ND ug/L 08/11/20 0.88 5.0 -- ND ND Dry ND -- Dry ND ug/L 01 /26/21 0.88 5.0 -- ND ND 9.1 ND -- ND ND ug/L 08/25/21 0.88 5.0 -- ND ND Dry ND -- ND ND ug/L 02/09/22 0.88 5.0 -- ND ND ND ND -- ND ND ug/L 08/15/22 0.88 5.0 -- ND ND ND ND -- ND ND ug/L 01/17/23 0.88 5.0 -- ND ND ND ND -- ND ND 2-Butanone ug/L 12/30/05 -- -- 20 ND ND -- -- -- -- ND No SW Standard ug/L 09/26/06 -- -- 100 ND ND -- ND Dry -- ND ug/L 01/31/07 -- -- 100 ND ND 42 J ND Dry ND ND ug/L 07/12/07 -- -- 100 ND ND Dry Dry Dry Dry ND ug/L 01/17/08 -- -- 100 ND ND ND ND Dry ND ND ug/L 07/30/08 -- -- 100 ND ND Dry Dry Dry Dry ND ug/L 01/21/09 -- -- 100 ND ND ND ND Dry ND ND ug/L 07/14/09 -- -- 100 ND ND Dry ND Dry Dry ND ug/L 01/07/10 -- -- 100 ND ND 190 ND -- ND ND (Verification) ug/L 01/20/10 -- -- 100 -- -- 89 J -- ND -- ND ug/L 07/20/10 -- -- 100 ND ND Dry ND Dry Dry ND ug/L 01/31/11 -- -- 100 ND ND ND ND Dry ND ND ug/L 07/18/11 -- -- 100 ND ND Dry ND Dry ND ND ug/L 01/24/12 -- -- 100 ND ND ND ND Dry ND ND ug/L 07/17/12 -- -- 100 ND ND Dry Dry Dry Dry ND ug/L 01/22/13 -- -- 100 ND ND ND ND Dry ND ND ug/L 07/15/13 -- -- 100 ND ND ND ND -- ND ND ug/L 01/27/14 -- -- 100 ND ND 42 J ND -- ND ND ug/L 07/15/14 -- -- 100 ND ND Dry ND -- ND ND ug/L 01/20/15 -- -- 100 ND ND ND ND -- ND ND ug/L 07/23/15 1.3 -- 100 ND ND Dry Dry -- Dry ND ug/L 01/12/16 1.3 -- 100 ND ND ND ND -- ND ND ug/L 08/01/16 1.3 -- 100 ND ND ND ND - Dry ND ug/L 01/18/17 1.3 -- 100 ND ND ND ND -- Dry ND ug/L 07/24/17 1.3 -- 100 ND ND ND Dry -- Dry ND ug/L 02/20/18 1.3 -- 100 ND ND ND ND -- ND ND ug/L 08/08/18 1.3 5.0 -- ND ND ND ND Dry ND ND ug/L 01/15/19 1.3 5.0 -- ND ND 72 ND -- ND ND (Verification) ug/L 02/21/19 1.3 5.0 -- -- -- 130 -- -- -- ND ug/L 08/14/19 1.3 5.0 -- ND ND Dry ND -- ND ND ug/L 01/13/20 1.3 5.0 -- ND ND ND ND -- ND ND ug/L 08/11/20 1.3 5.0 -- ND ND Dry ND -- Dry ND ug/L 01 /26/21 1.3 5.0 -- ND ND 50 ND -- ND ND ug/L 08/25/21 1.3 5.0 -- ND ND Dry ND -- ND ND ug/L 02/09/22 1.3 5.0 -- ND ND ND ND -- ND ND ug/L 08/15/22 1.3 5.0 -- ND ND ND ND -- ND ND ug/L 01/17/23 1.3 5.0 -- ND ND ND ND -- ND 4.2 J I} G:\PROJECTS\Rowan\GL21456818.001\OneDrive_1_6-21-2023\Phase 102 Active 1st SA 2023\600 Calculations\Rowan Active Tables January 2023 (Recovered) June 2023 Page 7 of 7 Project No. GL21456818.O01 Table 8 Summary of Detected Constituents in Surface Water 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 MDL MRL SWS Reporting Limit Blanks Active MSW Landfill C&D Landfill SW-1 SW-2 SW-3 SW-4 SW-6 SW-5 4-Methyl-2-pentanone ug/L 12/30/05 -- -- 20 ND ND -- -- -- -- ND No SW Standard ug/L 09/26/06 -- -- 100 ND ND -- ND Dry -- ND ug/L 01/31/07 -- -- 100 ND ND 1.3 J ND Dry ND ND ug/L 07/12/07 -- -- 100 ND ND Dry Dry Dry Dry ND ug/L 01/17/08 -- -- 100 ND ND ND ND Dry ND ND ug/L 07/30/08 -- -- 100 ND ND Dry Dry Dry Dry ND ug/L 01/21/09 -- -- 100 ND ND ND ND Dry ND ND ug/L 07/14/09 -- -- 100 ND ND Dry ND Dry Dry ND ug/L 01/07/10 -- -- 100 ND ND 1.2 J ND -- ND ND (Verification) ug/L 01/20/10 -- -- 100 -- -- ND -- ND -- ND ug/L 07/20/10 -- -- 100 ND ND Dry ND Dry Dry ND ug/L 01/31/11 -- -- 100 ND ND ND ND Dry ND ND ug/L 07/18/11 -- -- 100 ND ND Dry ND Dry ND ND ug/L 01/24/12 -- -- 100 ND ND ND ND Dry ND ND ug/L 07/17/12 -- -- 100 ND ND Dry Dry Dry Dry ND ug/L 01/22/13 -- -- 100 ND ND ND ND Dry ND ND ug/L 07/15/13 -- -- 100 ND ND ND ND -- ND ND ug/L 01/27/14 -- -- 100 ND ND ND ND -- ND ND ug/L 07/15/14 -- -- 100 ND ND Dry ND -- ND ND ug/L 01/20/15 1.1 -- 100 ND ND ND ND -- ND ND ug/L 07/23/15 1.1 -- 100 ND ND Dry Dry -- Dry ND ug/L 01/12/16 1.1 -- 100 ND ND ND ND -- ND ND ug/L 08/01/16 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 07/24/17 1.1 -- 100 ND ND ND Dry -- Dry ND ug/L 02/20/18 1.1 -- 100 ND ND ND ND -- ND ND ug/L 08/08/18 1.1 5.0 -- ND ND ND ND -- ND ND ug/L 01/15/19 1.1 5.0 -- ND ND ND ND -- ND ND ug/L 08/14/19 1.1 5.0 -- ND ND Dry ND -- ND ND ug/L 01/13/20 1.1 5.0 -- ND ND ND ND -- ND ND ug/L 08/11/20 1.1 5.0 -- ND ND Dry ND -- Dry ND ug/L 01 /26/21 1.1 5.0 -- ND ND ND ND -- ND ND ug/L 08/25/21 1.1 5.0 -- ND ND Dry ND -- ND ND ug/L 02/09/22 1.1 5.0 -- ND ND ND ND -- ND ND ug/L 08/15/22 1.1 5.0 -- ND ND ND ND -- ND ND ug/L 01/17/23 1.1 5.0 -- ND ND ND ND -- ND ND Toluene ug/L 12/30/05 -- -- 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 01/31/07 -- -- 5 ND ND 0.59 J ND Dry ND ND ug/L 07/12/07 -- -- 1 ND ND Dry Dry Dry Dry 0.48 J ug/L 01/17/08 -- -- 1 ND ND ND 0.4 J Dry ND ND ug/L 07/30/08 -- -- 1 ND ND Dry Dry Dry Dry ND ug/L 01/21/09 -- -- 1 ND ND ND ND Dry ND ND ug/L 07/14/09 -- -- 1 ND ND Dry ND Dry Dry ND ug/L 01/07/10 -- -- 1 ND ND ND ND -- ND ND (Verification) ug/L 01/20/10 -- -- 1 -- -- -- -- ND -- ND ug/L 07/20/10 -- -- 1 ND ND Dry ND Dry Dry ND ug/L 01/31/11 -- -- 1 ND ND ND ND Dry ND ND ug/L 07/18/11 -- -- 1 ND ND Dry ND Dry ND ND ug/L 01/24/12 -- -- 1 ND ND ND ND Dry ND ND ug/L 07/17/12 -- -- 1 ND ND Dry Dry Dry Dry ND ug/L 01/22/13 -- -- 1 ND ND ND ND Dry ND ND ug/L 07/15/13 -- -- 1 ND ND ND ND -- ND ND ug/L 01/27/14 -- -- 1 ND ND ND ND -- ND ND ug/L 07/15/14 -- -- 1 ND ND Dry ND -- ND ND ug/L 01/20/15 0.14 -- 1 ND ND ND ND -- ND ND ug/L 07/23/15 0.14 -- 1 ND ND Dry Dry -- Dry ND ug/L 01/12/16 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 01/18/17 0.14 -- 1 ND ND ND ND -- Dry ND ug/L 07/24/17 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 08/14/19 0.14 1.0 -- ND ND Dry ND -- ND ND ug/L 01/13/20 0.14 1.0 -- ND ND ND ND -- ND ND ug/L 08/11/20 0.14 1.0 -- ND ND Dry ND -- Dry ND ug/L 01 /26/21 0.14 1.0 -- ND ND ND ND -- ND ND ug/L 08/25/21 0.14 1.0 -- ND ND Dry ND -- ND ND ug/L 02/09/22 0.14 1.0 -- ND ND ND ND -- ND ND ug/L 08/15/22 0.14 1.0 -- ND ND ND ND -- ND ND ug/L 01/17/23 0.14 1.0 -- ND ND ND ND -- ND ND 1,4-Dioxane ug/L 08/08/18 25 60 -- ND ND ND ND Dry ND ND Human Health SW Standard = 80 ug/L ug/L 01/15/19 1.2 2.0 -- ND ND 3.6 ND -- 1.8 J ND (Verification) ug/L 02/21/19 1.2 2.0 -- -- -- 7.0 -- -- -- ND ug/L 08/14/19 1.2 2.0 -- ND ND Dry ND -- 2.2 ND ug/L 01/13/20 1.2 2.0 -- -- -- -- -- -- ND ND ug/L 08/11/20 0.80 2.0 -- -- -- Dry -- -- Dry ND ug/L 01/26/21 0.80 2.0 -- -- -- -- -- -- 2.6 ND ug/L 08/25/21 0.80 2.0 -- -- -- Dry -- -- 5.6 ND ug/L 02/09/22 0.80 2.0 -- -- -- -- -- -- 0.81 J ND ug/L 08/15/22 0.80 2.0 -- -- -- -- -- -- 2.6 ND ug/L 01/17/23 0.32 0.50 -- -- -- -- -- -- 0.56 ND Notes: ug/L = micrograms per liter S.U. = Standard Units NTU = Nephelometric Turbidity Units ND = Not detected at the stated reporting limit pS/cm= microsiemens per centimeter -- = 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 Bolded = Concentrations above Human Health or Chronic Surface Water Standard Shaded and Bold = Concentration above Acute and Chronic Surface Water Standards SWS Reporting Limit = NCPQL prior 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 Criteria per EPA MDL = Laboratory method detection limit MRL = Laboratory method reporting limit 1) Surface water monitoring poiint SW-1 is the upstream monitoring location 2) Historical data prior to September 2006 provided by Rowan County. 3) Surface 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 August 2022 event: antimony and thallium (2x). G:\PROJECTS\Rowan\GL21456818.001\OneDrive_1_6-21-2023\Phase 102 Active 1st SA 2023\600 Calculations\Rowan Active Tables January 2023 (Recovered) June 2023 Page 1 of 3 Project No. GL21456818.O01 Table 9 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 pH S. U. 12/30/05 7.55 7.50 -- -- -- -- (field) 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. 08/08/18 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. 01/13/20 7.39 6.40 7.35 5.87 -- 5.75 S. U. 08/10/20 6.84 7.06 Dry 8.54 -- Dry S. U. 01 /26/21 7.74 7.17 7.39 8.71 -- 5.94 S. U. 08/24/21 7.44 6.88 Dry 8.02 -- 6.12 S. U. 02/09/22 5.73 7.14 6.68 8.15 -- 6.32 S. U. 08/15/22 7.65 8.03 7.31 7.40 -- 6.48 S. U. 01/17/23 7.19 7.29 6.52 10.77 -- 7.42 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 08/08/18 120.2 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 PS/cm 01/13/20 63.9 60.3 263.4 38.3 -- 30.2 PS/cm 08/10/20 129.2 130.1 Dry 97.8 -- Dry PS/cm 01 /21 /21 171.8 122.3 729.8 92.3 -- 197.1 PS/cm 08/24/21 220.8 141.3 dry 101.5 -- 184.3 PS/cm 02/09/22 115.8 123.8 332.4 87.3 -- 1104 PS/cm 08/15/22 121.7 134.2 103.2 96.6 -- 211.3 PS/cm 01/17/23 129.1 445.7 109.7 111.2 -- 101.7 IG:\PROJECTS\Rowan\GL21456818.001\OneDrive_1_6-21-2023\Phase 102 Active 1st SA 2023\600 Calculations\Rowan Active Tables January 2023 (Recovered) June 2023 Page 2 of 3 Project No. GL21456818.O01 Table 9 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 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 o 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 01/20/10 -- -- 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 08/08/18 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 °C 08/10/20 24.5 24.8 Dry 21.1 -- Dry ° C 01 /26/21 10.4 9.7 8.2 8.7 -- 9.3 °C 08/24/21 26.3 25.1 Dry 24.6 -- 25.5 °C 02/09/22 5.4 4.9 7.1 4.6 -- 11.2 °C 08/15/22 21.4 21.6 21.6 20.0 -- 25.1 °C 01 /17/23 10.4 12.8 12.1 9.6 -- 12.5 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 NTU 08/10/20 157 172 Dry 13.4 -- Dry NTU 01 /26/21 47.5 184 70.0 11.6 -- 17.9 NTU 08/24/21 69.3 86.1 Dry 15.3 -- 20.8 NTU 02/09/22 -- 45.0 7.84 21.2 -- 46.1 NTU 08/15/22 151 77.8 122 18.3 -- 46.4 NTU 01/17/23 27 24.1 11 12.2 -- 37.1 IG:\PROJECTS\Rowan\GL21456818.001\OneDrive_1_6-21-2023\Phase 102 Active 1st SA 2023\600 Calculations\Rowan Active Tables January 2023 (Recovered) June 2023 Page 3 of 3 Project No. GL21456818.001 Table 9 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 (field) 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 08/08/18 196.4 185.9 -- 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 mV 08/10/20 37.5 122.8 Dry -8.3 -- Dry mV 01 /26/21 31.8 135.6 -79.9 -4.2 -- 144.8 mV 08/24/21 158.3 158.9 Dry 10.7 -- 162.2 mV 02/09/22 182.9 137.5 139.9 33.8 -- -52.5 mV 08/15/22 210.8 204.2 225.7 154.8 -- 64.5 mV 01/17/23 -118.3 -20.7 -107.8 -66.9 -- -30.1 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 08/08/18 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 mg/L 01/13/20 8.32 9.29 6.53 9.84 -- 8.32 mg/L 08/10/20 6.82 7.40 Dry 6.82 -- Dry mg/L 01 /26/21 8.73 7.55 6.59 7.00 -- 7.68 mg/L 08/24/21 6.94 7.23 Dry 7.31 -- 7.37 mg/L 02/09/22 12.11 7.62 7.80 7.85 -- 4.01 mg/L 08/15/22 6.62 5.21 6.20 5.00 -- 4.96 mg/L 01/17/23 10.07 5.59 8.97 8.31 -- 3.99 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 a revision to the facility's WQMP. G:\PROJECTS\Rowan\GL21456818.001\OneDrive_1_6-21-2023\Phase 102 Active 1st SA 2023\600 Calculations\Rowan Active Tables January 2023 (Recovered) June 2023 Page 1 of 15 Project No. GL21456818.0O1 Table 10 Summary of Analytical Detections and Field Parameters in Leachate Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Detected Monitoring Units Sample Date MDL MRL SWS Reporting Limit Leachate Blanks Constituents/Analytes 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 3.70 -- 6 ND ND ug/L 07/27/17 3.70 -- 6 ND ND ug/L 02/20/18 3.70 -- 6 ND ND ug/L 08/08/18 1.85 5.00 -- 2.32 J ND ug/L 01/16/19 3.70 10.0 -- ND ND ug/L 08/15/19 3.70 10.0 -- ND ND ug/L 01/16/20 3.70 10.0 -- ND ND ug/L 08/12/20 3.70 10.0 -- ND ND ug/L 01/26/21 0.740 2.00 -- 3.51 ND ug/L 08/25/21 3.70 10.0 - 7.52 J ND ug/L 02/10/22 2.50 5.00 -- 21.6 ND ug/L 08/15/22 3.70 10.0 -- 5.20 J ND ug/L 01/17/23 0.34 5.0 -- 2.6 J 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 ug/L 01/22/09 -- -- 10 ND ND ug/L 07/14/09 -- -- 10 10.8 B 3.84 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 6.80 -- 10 ND ND ug/L 07/27/17 6.80 -- 10 15.3 ND ug/L 02/20/18 6.80 -- 10 ND ND ug/L 08/08/18 7.60 10.0 -- ND ND ug/L 01/16/19 7.60 10.0 -- ND ND ug/L 08/15/19 7.60 10.0 -- ND ND ug/L 01/16/20 7.60 10.0 -- ND ND ug/L 08/12/20 7.60 10.0 -- ND ND ug/L 01/26/21 7.60 10.0 -- ND ND ug/L 08/25/21 7.60 10.0 - ND ND ug/L 02/10/22 7.60 10.0 -- 11.9 ND ug/L 08/15/22 7.60 10.0 -- 9.83 J ND ug/L 01/17/23 6.4 20 -- 10 J ND 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 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 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 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 1.00 -- 100 183 ND ug/L 07/27/17 1.00 -- 100 683 2.03 J ug/L 02/20/18 1.00 -- 100 279 ND ug/L 08/08/18 1.10 10.0 -- 141 3.31 ug/L 01/16/19 1.10 10.0 -- 631 ND ug/L 08/15/19 1.10 10.0 -- 640 ND ug/L 01/16/20 1.10 10.0 -- 562 1.11 ug/L 08/12/20 1.10 10.0 -- 604 ND ug/L 01/26/21 1.10 10.0 -- 631 ND ug/L 08/25/21 1.10 10.0 - 93.6 ND ug/L 02/10/22 1.10 10.0 -- 587 ND ug/L 08/15/22 1.10 10.0 -- 609 ND ug/L 1 01/17/23 1 4.4 1 10 1 470 ND G:\PROJECTS\Rowan\GL21456818.001\OneDrive_1_6-21-2023\Phase 102 Active 1st SA 2023\600 Calculations\Rowan Active Tables January 2023 (Recovered) June 2023 Page 2 of 15 Project No. GL21456818.0O1 Table 10 Summary of Analytical Detections and Field Parameters in Leachate Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Detected Monitoring Units Sample Date MDL MRL SWS Reporting Limit Leachate Blanks Constituents/Analytes 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 0.360 -- 1 ND ND ug/L 07/27/17 0.360 -- 1 0.629 J ND ug/L 02/20/18 0.360 -- 1 ND ND ug/L 08/08/18 0.360 1.00 -- ND ND ug/L 01/16/19 0.360 1.00 -- ND ND ug/L 08/15/19 0.360 1.00 -- ND ND ug/L 01/16/20 0.360 1.00 -- ND ND ug/L 08/12/20 0.360 1.00 -- ND ND ug/L 01/26/21 0.360 1.00 -- ND ND ug/L 08/25/21 0.360 1.00 - ND ND ug/L 02/10/22 0.360 1.00 -- ND ND ug/L 08/15/22 0.360 1.00 -- ND ND ug/L 01/17/23 0.44 5.0 -- ND ND 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 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 1.40 -- 10 3.49 J ND ug/L 07/27/17 1.40 -- 10 31.6 ND ug/L 02/20/18 1.40 -- 10 10.7 ND ug/L 08/08/18 1.40 10.0 -- 3.35 B 1.66 ug/L 01/16/19 1.40 10.0 -- 13.6 ND ug/L 08/15/19 1.40 10.0 -- 17.5 ND ug/L 01/16/20 1.40 10.0 -- 7.58 J ND ug/L 08/12/20 1.40 10.0 -- 22.7 ND ug/L 01/26/21 1.40 10.0 -- 13.1 ND ug/L 08/25/21 1.40 10.0 - ND ND ug/L 02/10/22 1.40 10.0 -- 10.9 ND ug/L 08/15/22 1.40 10.0 -- 19.7 ND ug/L 01/17/23 1.1 10 -- 11 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 ug/L 01/22/09 -- -- 10 14.3 1.5 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 1.10 -- 10 17.4 ND ug/L 07/27/17 1.10 -- 10 23.0 ND ug/L 02/20/18 1.10 -- 10 42.0 1.22 ug/L 08/08/18 1.40 10.0 -- 10.5 ND ug/L 01/16/19 1.40 10.0 -- 8.16 J ND ug/L 08/15/19 1.40 10.0 -- 11.0 ND ug/L 01/16/20 1.40 10.0 -- 4.75 J ND ug/L 08/12/20 1.40 10.0 -- 12.3 ND ug/L 01/26/21 1.40 10.0 -- 6.71 J ND ug/L 08/25/21 1.40 10.0 - 1.53 J ND ug/L 02/10/22 1.40 10.0 -- 7.86 J ND ug/L 08/15/22 1.40 10.0 -- 12.4 ND ug/L 1 01/17/23 1 1.4 1 10 1 7.3 J ND G:\PROJECTS\Rowan\GL21456818.001\OneDrive_1_6-21-2023\Phase 102 Active 1st SA 2023\600 Calculations\Rowan Active Tables January 2023 (Recovered) June 2023 Page 3 of 15 Project No. GL21456818.0O1 Table 10 Summary of Analytical Detections and Field Parameters in Leachate Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Detected Monitoring Units Sample Date MDL MRL SWS Reporting Limit Leachate Blanks Constituents/Analytes 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 ug/L 01/07/10 -- -- 10 ND ND ug/L 07/20/10 -- -- 10 ND 3.50 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 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 1.60 -- 10 3.72 B 4.80 ug/L 07/27/17 1.60 -- 10 4.26 J 4.18 ug/L 02/20/18 1.60 -- 10 ND ND ug/L 08/08/18 1.60 10.0 -- ND ND ug/L 01/16/19 1.60 10.0 -- ND ND ug/L 08/15/19 1.60 10.0 -- ND ND ug/L 01/16/20 1.60 10.0 -- ND ND ug/L 08/12/20 1.60 10.0 -- 1.61 J ND ug/L 01/26/21 1.60 10.0 -- ND ND ug/L 08/25/21 1.60 10.0 - ND ND ug/L 02/10/22 1.60 10.0 -- ND ND ug/L 08/15/22 1.60 10.0 -- ND ND ug/L 01/17/23 3.2 20 -- 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 ug/L 01/07/10 -- -- 10 5.12 B 1.58 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 ug/L 01/23/13 -- -- 10 3.07 B 1.97 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 3.10 -- 10 ND ND ug/L 07/27/17 3.10 -- 10 11.2 ND ug/L 02/20/18 3.10 -- 10 ND ND ug/L 08/08/18 3.10 10.0 -- ND ND ug/L 01/16/19 3.10 10.0 -- 3.20 J ND ug/L 08/15/19 3.10 10.0 -- ND ND ug/L 01/16/20 3.10 10.0 -- ND ND ug/L 08/12/20 3.10 10.0 -- ND ND ug/L 01/26/21 3.10 10.0 -- ND ND ug/L 08/25/21 3.10 10.0 - ND ND ug/L 02/10/22 3.10 10.0 -- ND ND ug/L 08/15/22 3.10 10.0 -- ND ND ug/L 01/17/23 6.6 10 -- ND ND 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 ug/L 01/22/09 -- -- 50 20.6 J ND ug/L 07/14/09 -- -- 50 39.1 J 0.882 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 2.20 -- 50 10.2 J ND ug/L 07/27/17 2.20 -- 50 18.1 J ND ug/L 02/20/18 2.20 -- 50 15.7 J ND ug/L 08/08/18 2.20 10.0 -- 21.0 ND ug/L 01/16/19 2.20 10.0 -- 29.4 ND ug/L 08/15/19 2.20 10.0 -- 43.2 ND ug/L 01/16/20 2.20 10.0 -- 19.1 ND ug/L 08/12/20 2.20 10.0 -- 47.9 ND ug/L 01/26/21 2.20 10.0 -- 28.5 ND ug/L 08/25/21 2.20 10.0 - 4.45 J ND ug/L 02/10/22 2.20 10.0 -- 30.8 ND ug/L 08/15/22 2.20 10.0 -- 49.3 ND ug/L 1 01/17/23 1 3.3 1 40 1 29 J ND G:\PROJECTS\Rowan\GL21456818.001\OneDrive_1_6-21-2023\Phase 102 Active 1st SA 2023\600 Calculations\Rowan Active Tables January 2023 (Recovered) June 2023 Page 4 of 15 Project No. GL21456818.0O1 Table 10 Summary of Analytical Detections and Field Parameters in Leachate Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Detected Monitoring Units Sample Date MDL MRL SWS Reporting Limit Leachate Blanks Constituents/Analytes 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 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 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 1.90 -- 10 ND ND ug/L 07/27/17 1.90 -- 10 ND ND ug/L 02/20/18 1.90 -- 10 2.33 J ND ug/L 08/08/18 1.90 10.0 -- ND ND ug/L 01/16/19 1.90 10.0 -- ND ND ug/L 08/15/19 1.90 10.0 -- ND ND ug/L 01/16/20 1.90 10.0 -- ND ND ug/L 08/12/20 1.90 10.0 -- ND ND ug/L 01/26/21 1.90 10.0 -- ND ND ug/L 08/25/21 1.90 10.0 - ND ND ug/L 02/10/22 1.90 10.0 -- ND ND ug/L 08/15/22 1.90 10.0 -- ND ND ug/L 01/17/23 1.5 10 -- ND ND 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 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 1.10 -- 5.5 9.09 J ND ug/L 07/27/17 1.10 -- 5.5 ND ND ug/L 02/20/18 1.10 -- 5.5 ND ND ug/L 08/08/18 0.550 5.00 -- ND ND ug/L 01/16/19 1.10 10.0 -- ND ND ug/L 08/15/19 1.10 10.0 -- ND ND ug/L 01/16/20 1.10 10.0 -- ND ND ug/L 08/12/20 1.10 10.0 -- ND ND ug/L 01/26/21 0.220 2.00 -- ND ND ug/L 08/25/21 1.10 10.0 - ND ND ug/L 02/10/22 0.0600 0.100 -- ND ND ug/L 08/15/22 1.10 10.0 -- ND ND ug/L 01/17/23 0.26 1.0 -- 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 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 1.40 -- 25 ND ND ug/L 07/27/17 1.40 -- 25 15.1 J ND ug/L 02/20/18 1.40 -- 25 6.20 J ND ug/L 08/08/18 1.40 10.0 -- ND ND ug/L 01/16/19 1.40 10.0 -- 6.29 J ND ug/L 08/15/19 1.40 10.0 -- 10.6 ND ug/L 01/16/20 1.40 10.0 -- 2.64 J ND ug/L 08/12/20 1.40 10.0 -- 12.4 ND ug/L 01/26/21 1.40 10.0 -- 7.58 J ND ug/L 08/25/21 1.40 10.0 - ND ND ug/L 02/10/22 1.40 10.0 -- 3.27 J ND ug/L 08/15/22 1.40 10.0 -- 7.50 J ND ug/L 01/17/23 1.0 1 10 -- 7.0 J ND G:\PROJECTS\Rowan\GL21456818.001\OneDrive_1_6-21-2023\Phase 102 Active 1st SA 2023\600 Calculations\Rowan Active Tables January 2023 (Recovered)