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HomeMy WebLinkAbout7601_RandolphCountyMSWLF_GWMR_DIN28539_20170628 Golder, Golder Associates and the GA globe design are trademarks of Golder Associates Corporation FIRST SEMI-ANNUAL 2017 SAMPLING EVENT AND FOURTH BASELINE MONITORED NATURAL ATTENUATION EVALUATION Closed Randolph County Municipal Solid Waste Landfill, Permit No. 76-01 Randolph County, North Carolina Submitted To: Waste Management of Carolinas, Inc. 3597 Old Cedar Falls Road Randleman, NC 27317 Randolph County Public Works P.O. Box 4728 Asheboro, NC 27204 Submitted By: Golder Associates NC, Inc. 5B Oak Branch Drive Greensboro, NC 27407 June 2017 Project Nos. 141122017.102 0739612716.101 WATER QUALITY MONITORING REPORT June 2017 i 141122017.102 0739612716.101 Table of Contents COVER LETTER 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 ................................................. 4 2.1 Visual Inspection Program ........................................................................................................... 4 2.2 Well Network and Groundwater Elevation Measurements .......................................................... 4 2.3 April 2017 Groundwater and Surface Water Monitoring Event .................................................... 5 2.4 Laboratory Analysis Program ....................................................................................................... 5 2.4.1 Compliance Monitoring ............................................................................................................ 6 2.4.2 Corrective Action Monitoring .................................................................................................... 6 2.5 April 2017 Sampling Results ........................................................................................................ 6 3.0 LABORATORY AND FIELD QA/QC ................................................................................................ 8 4.0 DATA EVALUATION ........................................................................................................................ 9 4.1 North Carolina Groundwater and Surface Water Quality Standard Comparisons ....................... 9 5.0 CORRECTIVE ACTION PERFORMANCE MONITORING RESULTS AND MONITORED NATURAL ATTENUATION EVALUATION .................................................................................... 10 5.1 Corrective Action Performance Monitoring Results ................................................................... 10 5.2 Monitored Natural Attenuation Evaluation ................................................................................. 10 6.0 CONCLUSIONS ............................................................................................................................. 13 7.0 REFERENCES ............................................................................................................................... 14 List of Tables Table 1 Summary of Historical Static Water Level Data Table 2 Summary of Estimated Horizontal Flow Velocities Table 3 Summary of Well Construction Information Table 4 Summary of Historical Groundwater Monitoring Results Table 5 Summary of Groundwater Field Parameters Table 6 Summary of Historical Surface Water Monitoring Results Table 7 Summary of Surface Water Field Parameters Table 8 Summary of Geochemical Parameters Table 9 Summary of Constituents of Concern List of Figures Figure 1 Groundwater Surface Contour Map, April 3, 2017 List of Appendices Appendix A Groundwater and Surface Water Sampling Logs June 2017 ii 141122017.102 0739612716.101 Appendix B April 2017 Groundwater and Surface Water Certificates-of-Analysis, Chain-of-Custody Forms, and Laboratory Data Reviews Appendix C EPA Natural Attenuation Screening Protocol Forms and BIOCHLOR Monitored Natural Attenuation Analysis for the April 2017 Sampling Event June 2017 1 141122017.102 0739612716.101 1.0 INTRODUCTION This report summarizes the monitoring results from the April 3 - 5, 2017, groundwater and surface water sampling event at the closed Randolph County Landfill in Randolph County, North Carolina (NC) in accordance with Title 15A of the North Carolina Administrative Code (NCAC) Subchapter 13B.1632. The Randolph County Landfill, a closed municipal solid waste (MSW) landfill, is maintained by Waste Management of Carolinas, Inc. (Waste Management) under Permit No. 76-01 issued by the NC Department of Environmental Quality (DEQ), formerly the NC Department of Environment and Natural Resources (DENR). 1.1 Site Description and Background The location of the facility is shown on the inlay on Figure 1. As presented, the Randolph County Landfill is located approximately 3 miles northeast of the city of Asheboro, near the town of Central Falls in Randolph County, NC, off County Land Road. Randolph County operated a sanitary landfill from 1973 to 1985, and a second sanitary landfill for MSW, construction and demolition (C&D) debris, and land clearing and inert debris (LCID) from 1985 to December 31, 1997. The total facility comprises approximately 600 acres, approximately half of which contains waste or is associated with activities for the convenience center and the County’s solid waste transfer station. The transfer station was built before final landfill closure in 1997, and operated until the opening of the Great Oak Landfill. Monitoring wells for the second unlined MSW facility have been sampled since 1987. Because it operated past October 9, 1993, this landfill is subject to Title 15A NCAC 13B.1630-37 of the NC Solid Waste Management Regulations (SWMR). As shown on Figure 1, the landfill is accessible by County Land Road to the southwest. The landfill is bounded to the north by the Deep River and to the west, south, and east by residential and undeveloped wooded properties. Topographic relief at the landfill ranges from approximately 580 to 725 feet above mean sea level. Surface drainage from the facility is toward a perennial stream to the west and a valley to the east. Both of these features drain into the Deep River to the northeast of the landfill (H&S, 1994). 1.2 Compliance Monitoring History Monitoring wells for the second sanitary landfill have been sampled since 1987. Due to detections of volatile organic compounds (VOCs) in groundwater samples at concentrations above applicable standards, the facility has been in the Assessment Monitoring Program since 1996. The current monitoring system consists of six monitoring wells (MW-5, MW-6, MW-7, MW-8, MW-9, and MW-10S). Four surface water monitoring points (SW-1 through SW-4) are also monitored in accordance with the Water Quality Monitoring Plan (WQMP) detailed in the facility’s Transition Plan, dated October 8, 1994, and approved by the NC DEQ in 1995. A Nature and Extent Study (NES) was submitted to the NC DEQ on April 12, 2013, in response to exceedances of VOCs. The NES was approved by the NC DEQ on June 8, 2013. An Assessment of Corrective Measures (ACM) was submitted to the NC DEQ on October 3, 2013, and was June 2017 2 141122017.102 0739612716.101 approved on December 2, 2013. The Corrective Action Plan (CAP) was submitted to the NC DEQ on July 31, 2015, and approved on September 10, 2015. As specified in the CAP, monitored natural attenuation (MNA) was implemented as the corrective action for the facility. As part of the Corrective Action Performance Monitoring Plan (CAPMP), which was approved as part of the CAP, downgradient well MW-1 was replaced with well MW-10S. Well MW-1 remains in service for the collection of water level data. The fourth background MNA monitoring event was completed during the April 2017 routine sampling event. 1.3 Hydrogeologic Setting Geologically, the facility is located within the Carolina Slate Belt of the Piedmont Physiographic Province of NC. The Carolina Slate Belt is composed of Late Proterozoic to Cambrian meta-sedimentary and meta- volcanic rocks that locally have been intruded by diabase dikes and felsic intrusive suites (NCGS, 1985). The facility is underlain primarily by felsic meta-volcanic tuffs with massive fabrics to steeply dipping foliations (GSA, 2008). STS Consultants Ltd. conducted a geologic and hydrogeologic investigation as part of the Phase II Landfill Expansion in late 1984 and 1985 (H&S, 1994). The topography of the area is characterized by rolling, rounded hills and flat valleys with sharp draws containing streams and ponds. The site geology consists of residual soils weathered from bedrock or saprolite. The saprolite generally consists of clayey silts and silty clays, with some sandy silts and silty sands (H&S, 1994). The uppermost groundwater beneath the facility is present in a shallow, unconfined aquifer comprised of partially weathered, fractured, meta-volcanic rock. As a result of the rolling topography, groundwater occurs at depths ranging from approximately 4 to 25 feet below grade. Depth-to-water measurements obtained during the April 2017 monitoring event are summarized in Table 1 and were used to prepare a groundwater surface contour map presented as an overlay on Figure 1. As presented, the groundwater flow in the uppermost aquifer beneath the site is generally toward the northwest to northeast toward the Deep River, which is located along the northern property boundary of the site. The groundwater contour map and interpreted flow directions are consistent with previously submitted groundwater contour maps and flow directions for this facility. Based on the April 2017 groundwater surface contour map, the average hydraulic gradient in the shallow aquifer underlying the site was calculated to be approximately 0.058 foot/foot (Table 2). Based on a local hydrogeologic investigation, a hydraulic conductivity of 2.75E-04 centimeter/second was used in linear groundwater velocity calculations (GSA, 2008). An estimated effective porosity of 0.15 was used for the shallow aquifer to represent a range from saprolite to fractured rock (H&S, 1997). Using the above values, the estimated rate of groundwater flow for the uppermost aquifer beneath the facility was calculated using the following modified Darcy equation: June 2017 3 141122017.102 0739612716.101 Vgw = Ki/ne where Vgw = average linear velocity (feet/year), K = hydraulic conductivity (feet/year), i = horizontal hydraulic gradient, and ne = effective porosity. The average estimated linear groundwater flow velocity under the waste management unit is approximately 109 feet/year, which is generally consistent with previous estimates (Table 2). The range of groundwater flow rates is expected to vary depending on the hydrogeologic unit in which it occurs. However, the linear velocity equation above makes the simplified assumption of a homogeneous and isotropic aquifer. Therefore, this equation represents a likely average value for the uppermost aquifer and does not account for heterogeneous and/or anisotropic conditions that may be present in the uppermost aquifer at the facility. The saprolite may have areas that exhibit relict foliation, and these structures can result in locally anisotropic groundwater flow directions. June 2017 4 141122017.102 0739612716.101 2.0 FIELD PROGRAM MONITORING RESULTS AND DISCUSSION Field activities conducted as part of the April 2017 sampling event are discussed in the following sections. 2.1 Visual Inspection Program In order to detect a potential release at the earliest possible time, the visual inspection program is used by sampling crews at the closed Randolph County Landfill. This program includes physical indicators such as potential water table mounding beneath the waste management unit, physical examination of any stresses in biological communities, visible signs of leachate migration (i.e., leachate seeps), unexplained changes in soil characteristics, and any other change to the environment due to the waste management unit. During the April 2017 compliance monitoring event, no physical indicators of a potential release were observed in the vicinity of the waste management area. 2.2 Well Network and Groundwater Elevation Measurements The network of groundwater monitoring wells at the closed Randolph County Landfill consists of wells MW-5, MW-6, MW-7, MW-8, MW-9, and MW-10S. Additionally, MW-2, MW-3, MW-10D, and MW-11S are sampled semi-annually to establish MNA background conditions. Available monitoring well construction information is summarized on Table 3, and the well locations are shown on Figure 1. The network of monitoring wells was constructed to target the preferential flow path for groundwater underlying waste disposal areas (i.e., partially weathered fractured rock that comprises the unconfined uppermost aquifer), as described previously. Two on-site surface water points (upstream SW-1 and downstream SW-2) and two off-site surface water points (upstream SW-3 and downstream SW-4) are also monitored. Monitoring well MW-5 is the facility’s background well and is located hydraulically upgradient of the waste disposal area. Monitoring wells MW-6, MW-7, MW-8, MW-9, and MW-10S are located downgradient of the waste disposal area and represent the facility’s downgradient compliance wells. Monitoring wells MW-7, MW-8, MW-9, and MW-10S are screened in the shallow, unconfined aquifer. Monitoring wells MW-5 and MW-6 are screened in fractured bedrock. Additionally, nine observation wells are measured for water levels to supplement data used in the construction of groundwater elevation contours: MW-1, MW-2, MW-3, MW-4, MW-10D, MW-11S, MW-A1, MW-A2, and MW-A3. Depth-to-water measurements were recorded to the nearest 0.01 foot prior to initiating groundwater purging and sampling activities. A summary of the current and historical water level elevations is presented in Table 1. As presented, the data indicate that the hydraulic head level in the uppermost aquifer beneath the facility is fairly inconsistent, with temporal variation from the long-term average ranging from approximately 5 to 15 feet (plus or minus). As expected, the range in fluctuation appears to be greatest in upgradient well MW-5, as this well is located in a groundwater recharge area. The range of fluctuation in downgradient June 2017 5 141122017.102 0739612716.101 compliance wells MW-6, MW-7, MW-8, MW-9, and MW-10S, which are located near groundwater discharge areas, is less, presumably due to the stabilizing effect of the hydraulic discharge boundary. 2.3 April 2017 Groundwater and Surface Water Monitoring Event Personnel from Golder visited the facility on April 3 - 5, 2017, to purge and sample monitoring wells MW-2, MW-3, MW-5, MW-6, MW-7, MW-8, MW-9, MW-10S, MW-10D, and MW-11S, and to sample surface water monitoring points SW-1, SW-2, SW-3, and SW-4. Depth-to-water measurements were obtained from the compliance and observation monitoring wells to the nearest 0.01 foot using an electronic water level indicator prior to purging the wells. Monitoring wells were purged with dedicated bladder pumps using low-flow micropurge procedures under applicable United States Environmental Protection Agency (USEPA) sampling protocols. Measurements of temperature, pH, specific conductivity, dissolved oxygen, oxidation-reduction potential, and turbidity were recorded periodically (approximately every 3 to 5 minutes based on the purge rate) during the purge with field-calibrated instruments to monitor for stabilization of water quality field parameters. During the purge, the laboratory-supplied sample containers were prepared. Each sample container was labeled with the sample identification number, sampling personnel, date and time of sample collection, project name and number, and requested chemical analyses. The groundwater samples were collected directly from the tubing of the pump in the pre-preserved sample containers after purging was completed. 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 on each log is a description of the sampling equipment, sampling location, sampling method, field observations, and water quality measurements. Surface water samples were collected directly from the stream flow, by lowering the sample containers into the stream flow with the opening facing away from the current flow, taking care to prevent the overflow of the sample containers and to minimize sample-induced turbidity. Measurements of temperature, pH, specific conductivity, dissolved oxygen, oxidation-reduction potential, and turbidity were recorded during the collection of the surface water samples. After collection, the samples were placed in a cooler on ice, under chain-of-custody control. Copies of the sampling logs are presented in Appendix A. Included in each log is a description of the sampling equipment, sampling location, sampling method, field observations, and water quality measurements. 2.4 Laboratory Analysis Program The April 2017 groundwater and surface water samples were shipped via courier on April 4, 5, and 6, 2017, to Environmental Conservation Laboratories, Inc. (ENCO) of Cary, NC under chain-of-custody control. As June 2017 6 141122017.102 0739612716.101 noted in the laboratory report, which is included in Appendix B, the samples were received at the laboratory on April 4, 5, and 6, 2017, in good condition and properly preserved. Additional MNA groundwater samples were shipped to Pace Energy Services, LLC (Pace) of Pittsburgh, Pennsylvania under chain-of-custody control. The samples were shipped on April 3 and 4, 2017, and were received by the laboratory on April 5, 2017. Groundwater samples from MW-2, MW-3, MW-5, MW-7, MW-8, MW-10S, MW-10D, and MW-11S were analyzed for hydrogen, carbon dioxide, methane, ethane, ethene, and ferrous iron by Pace. 2.4.1 Compliance Monitoring The compliance groundwater samples were analyzed for the NC Appendix II constituents. Surface water samples were analyzed for the NC Appendix I constituents. 2.4.2 Corrective Action Monitoring Groundwater from compliance wells MW-5, MW-7, MW-8, and MW-10S, and corrective action wells MW-2, MW-3, MW-10D, and MW-11S were analyzed for MNA parameters, which are nitrate, sulfate, sulfide, alkalinity, chloride, total organic carbon (TOC), methane, ethane, ethene, biological oxygen demand (BOD), chemical oxygen demand (COD), carbon dioxide, volatile fatty acids, ferrous iron, and hydrogen. Corrective action wells MW-2, MW-3, MW-10D, and MW-11S were also analyzed for constituents-of-concern (COCs) from the CAP, which are benzene; 1,4-dichlorobenzene; 1,1-dichloroethane; 1,2-dichloroethane; cis-1,2-dichloroethene; methylene chloride; 4-methyl-2-pentanone; tetrachloroethene; trichloroethene; and vinyl chloride. 2.5 April 2017 Sampling Results Analytical results for the April 2017 groundwater samples are summarized in Table 4 with available historical data, and field parameters are summarized in Table 5. The laboratory certificates-of-analysis, chain-of-custody forms, and laboratory data reviews for the sampling event are included in Appendix B. As presented, one inorganic constituent (zinc) was detected at a concentration that exceeded its Solid Waste Section Reporting Limit (SWSL) in the sample from MW-10S. No other inorganic constituents were detected a concentrations above the SWSLs in samples from one or more downgradient wells during the event. Zinc has been detected at similar concentrations in samples from MW-10S during previous events. As presented, five VOCs (benzene; 1,1-dichloroethane; tetrachloroethene; trichloroethene; and trichlorofluoromethane) were detected above their respective SWSLs in the samples from one or more downgradient wells during the April 2017 sampling event. The detected constituents and concentrations are generally similar to previous detections in samples from groundwater monitoring wells at the facility. June 2017 7 141122017.102 0739612716.101 Analytical results for the April 2017 surface water samples are summarized in Table 6 with historical data, and field parameters are summarized in Table 7. No NC Appendix I constituents were detected at concentrations above the SWSLs in samples collected from surface water monitoring points during this event. June 2017 8 141122017.102 0739612716.101 3.0 LABORATORY AND FIELD QA/QC A field blank was collected by Golder personnel as part of the April 2017 groundwater and surface water sampling event. In addition to the field blank, a laboratory-prepared trip blank accompanied the volatile sample containers for the April 2017 sampling event to and from the laboratory. ENCO analyzed the field blank for the same constituents as the groundwater samples, and the trip blank for NC Appendix II VOCs. Reviews of the laboratory data were performed by Golder personnel (included in Appendix B). Copper and chromium were reported at estimated concentrations in the field blank during April 2017 event. The concentrations of copper in the samples from MW-6, MW-9, SW-3, and SW-4, and the concentration of chromium in the sample from MW-8 are considered blank-qualified, as presented in Tables 4 and 6. June 2017 9 141122017.102 0739612716.101 4.0 DATA EVALUATION The results of the data evaluations are presented in the following sections. 4.1 North Carolina Groundwater and Surface Water Quality Standard Comparisons As presented in Table 4, no inorganic constituents were detected at concentrations that exceeded both the SWSLs and applicable groundwater protection standards in the samples collected during the April 2017 sampling event. Cobalt was detected at estimated concentrations below the SWSL, but above the Solid Waste Section (SWS) Groundwater Protection Standard (GWPS), in the samples from downgradient wells MW-6, MW-7, and MW-10S. Thallium was detected at estimated concentration below the SWSL, but above the GWPS, in the sample from downgradient well MW-9. Vanadium was detected at estimated concentration below the SWSL, but above the GWPS, in the sample from upgradient well MW-5. Because none of the inorganic detections exceed the SWSLs, no further action is warranted. Three NC Appendix I VOCs (benzene; 1,1-dichloroethane; and tetrachloroethene) were reported at concentrations above their respective SWSLs and groundwater protection standards in one or more samples from downgradient wells during the April 2017 sampling event, as they have been during previous events. Benzene was detected at a concentration that exceed both the SWSL and NC 2L Standard in the sample from MW-7. Constituent 1,1-dichloroethane was detected at concentrations that exceeded the SWSL and NC 2L Standard in the samples from MW-8 and MW-10S. Tetrachloroethene was detected at a concentration that exceed both the SWSL and NC 2L Standard in the sample from MW-10S. Vinyl chloride was detected at an estimated concentration below the SWSL, but above the NC 2L Standard, in the sample from MW-10S. No NC Appendix I constituents were detected at concentrations above their respective SWSLs and applicable surface water standards in the samples collected from surface water monitoring points during this event. June 2017 10 141122017.102 0739612716.101 5.0 CORRECTIVE ACTION PERFORMANCE MONITORING RESULTS AND MONITORED NATURAL ATTENUATION EVALUATION A CAPMP was approved as part of the CAP by the NC DENR on July 31, 2015. Per the CAPMP, MNA background sampling began during the October 2015 semi-annual water quality event. A Corrective Action Performance Evaluation Report (CAPER) for MNA will be submitted to the NC DEQ after 5 years of MNA sampling results have been collected. 5.1 Corrective Action Performance Monitoring Results Per the CAPMP, corrective action monitoring wells MW-2, MW-3, MW-10D, and MW-11S were sampled in addition to the compliance monitoring wells. Samples from MW-2, MW-3, MW-5, MW-7, MW-8, MW-10S, MW-10D, and MW-11S were analyzed for MNA parameters, which are nitrate, sulfate, sulfide, alkalinity, chloride, TOC, methane, ethane, ethene, BOD, COD, carbon dioxide, volatile fatty acids, ferrous iron, and hydrogen. A summary of the MNA parameters is included as Table 8, and the certificates-of-analyses are included in Appendix B. The samples from MW-2, MW-3, MW-10D, and MW-11S were also analyzed for the COCs from the CAP, which are benzene; 1,4-dichlorobenzene; 1,1-dichloroethane; 1,2-dichloroethane; cis-1,2-dichloroethene; methylene chloride; 4-methyl-2-pentanone; tetrachloroethene; trichloroethene; and vinyl chloride. These constituents were analyzed for samples from the compliance wells as part of the NC Appendix I list of constituents for the routine semi-annual water quality monitoring. A summary of the COCs is included as Table 9, and the certificates-of-analyses are included in Appendix B. Three of the 10 COCs (benzene; 1,1-dichloroethane; and tetrachloroethene) were detected at concentrations that exceed their respective SWSLs and NC 2L Standards in one or more downgradient wells during the April 2017 event. Benzene was detected at a concentration that exceeded the SWSL and NC 2L Standard in the sample from MW-7. Constituent 1,1-dichloroethane was detected at concentrations that exceeded the SWSL and NC 2L Standard in samples from MW-2, MW-8, MW-10S, and MW-10D. Tetrachloroethene was detected in the sample from MW-10S at a concentration that exceeded the SWSL and NC 2L Standard. Vinyl chloride was detected in the samples from MW-10S and MW-10D at estimated concentrations below the SWSL, but above the NC 2L Standard. 5.2 Monitored Natural Attenuation Evaluation Monitoring wells MW-2, MW-3, MW-5, MW-7, MW-8, MW-10S, MW-10D, and MW-11S were selected for a performance evaluation of MNA processes to adhere to the NC DEQ guidance document titled MNA Excerpt from Examples of Approved Groundwater Corrective Measures for Solid Waste Management Facilities. These wells have been selected because they are located in the areas identified for corrective action by MNA in the July 2015 CAP. The April 2017 analytical data for these wells were evaluated using the Environmental Protection Agency’s (EPA) natural attenuation screening protocol (1999). June 2017 11 141122017.102 0739612716.101 Based on the EPA’s screening protocol, monitoring wells MW-7 and MW-10D received scores of 22, which indicates strong evidence for anaerobic biodegradation of chlorinated organics (EPA, 1999). Wells MW-3 and MW-10S received scores of 15 and 20, respectively, which indicates adequate evidence for anaerobic biodegradation of chlorinated organics (EPA, 1999). Monitoring wells MW-2 and MW-8 received scores of 9 and 10, respectively, which indicates there is limited evidence for anaerobic biodegradation of chlorinated organics. Background well MW-5 and sentinel well MW-11S received scores of 6 and 5, respectively, which indicates there is inadequate evidence for anaerobic biodegradation of chlorinated organics. The natural attenuation screening protocol forms are included in Appendix C. Based on the results of the screening protocol, there is evidence that natural attenuation is occurring at the site; therefore, modeling was performed on the April 2017 data to simulate remediation by natural attenuation using a screening model called BIOCHLOR (EPA, 2000). Because three plumes with NC 2L Standard exceedances were identified in the NES, each plume was modeled. Modeling parameters for advection, dispersion, and modeled area were the same as previous models performed for the site. A 36-year simulation period was selected for the model, representing the time at which waste was first placed in the landfill (i.e., the original source). The April 2017 results represent current conditions at the facility and therefore, the models were calibrated to the current sample results by adjusting the biotransformation data within a prescribed range specified by literature values within the BIOCHLOR program. Once the models were calibrated, a forecasted model was created by changing the simulation period to 100 years to assess the size of the contaminant plume in the future. BIOCHLOR generates plots that compare concentrations of tetrachloroethene, trichloroethene, dichloroethene, vinyl chloride, and ethene over time with no degradation to concentrations where sequential 1st order decay is occurring. The plots are provided in Appendix C. The centerline plots can be used to forecast the contaminant plume size over time. For the plume located northeast of the waste unit, analytical data for samples from MW-8 and MW-3 were modeled and are presented on Appendices C-9 and C-10. The concentrations of tetrachloroethene and trichloroethene in the samples from MW-3 and MW-8 plot on their respective 1st order sequential decay curve. The concentration of dichloroethene in the sample from MW-8 also plots on the 1st order sequential decay curve. The cis-1,2-dichloroethene variety was the prominent form of dichloroethene, indicating that the detections represent daughter products of trichloroethene. Vinyl chloride and ethene were not detected in either of the two monitoring wells. The results from these plots indicate that natural attenuation is occurring in the northeast plume, and that as long as conditions continue to be strongly anaerobic, biodegradation will likely continue. According to the current data, it is likely that the plume size has stabilized, as indicated by the BIOCHLOR model. June 2017 12 141122017.102 0739612716.101 For the plume located north of the waste unit, analytical data for samples from MW-7, MW-2, and MW-11S were modeled and are presented on Appendices C-11 and C-12. Tetrachloroethene and trichloroethene were not detected in any of the three monitoring wells. The concentration of dichloroethene in the sample from MW-7 plots below the 1st order sequential decay curve. The cis-1,2-dichloroethene variety was the prominent form of dichloroethene, indicating that the detections represent daughter products of trichloroethene. Vinyl chloride and ethene were not detected in any of the three monitoring wells. The results from these plots indicate that natural attenuation is occurring in the northern plume, and that as long as conditions continue to be strongly anaerobic, biodegradation will likely continue. According to the current data, it is likely that the plume size has stabilized, as indicated by the BIOCHLOR model. For the plume located west of the waste unit, analytical data for samples from MW-10S, MW-10D, and SW-2 were modeled and are presented on Appendices C-13 and C-14. The concentrations of tetrachloroethene and trichloroethene in the sample from MW-10S plot below their respective 1st order sequential decay curve. The concentrations of dichloroethene in the samples from MW-10S and MW-10D plot below the 1st order sequential decay curve. The cis-1,2-dichloroethene variety was the prominent form of dichloroethene, indicating that the detections represent daughter products of trichloroethene. The concentration of vinyl chloride in the sample from MW-10D plots below the 1st order sequential decay curve. Ethene was not detected in any of the three monitoring points. The results from these plots indicate that natural attenuation is occurring in the western plume, and that as long as conditions continue to be strongly anaerobic, biodegradation will likely continue. According to the current data, it is likely that the plume size has stabilized, as indicated by the BIOCHLOR model. The limited concentrations of vinyl chloride and the lack of ethene in each of the plumes evaluated above do not suggest that biodegradation is limited; rather, the degradation of low concentrations of cis-1,2-dichloroethene results in very low concentrations of vinyl chloride and ethene. Therefore, as long as cis-1,2-dichloroethene is not accumulating, it is reasonable to assume that biodegradation is occurring. June 2017 13 141122017.102 0739612716.101 6.0 CONCLUSIONS Due to the continued presence of VOCs above applicable groundwater standards, the Randolph County Landfill will continue to be monitored in accordance with the requirements of the Assessment Monitoring Program as outlined in Title 15A NCAC 13B.1634. Four MNA background monitoring events have been performed as outlined in the approved CAP, and the County will request a modified MNA parameter list and schedule in a separate submittal. The next compliance and MNA monitoring event for this facility is tentatively scheduled for October 2017. June 2017 14 141122017.102 0739612716.101 7.0 REFERENCES Butler, J.R., and D.T. Secor, Jr., 1991. The Central Piedmont (Chapter 4) in J.W. Horton, Jr. and V.A. Zullo, eds., The Geology of the Carolinas (Carolina Geological Society Fiftieth Anniversary Volume): The University of Tennessee Press, pp. 66-71. EPA (United States Environmental Protection Agency), 2003. Guidance for Developing Ecological Soil Screening Levels, November 2003. Table 2.3. H&S (Hazen and Sawyer), 1994. Transition Plan - Randolph County Landfill, October 8, 1994, including the 1995 Water Quality Monitoring Plan references. H&S (Hazen and Sawyer), 1997. Randolph County Landfill Groundwater Monitoring Data H&S No. 3796, December 4, 1997. H&S (Hazen and Sawyer), 1995. Baseline Groundwater Monitoring—Randolph County MSW Landfill, October 19, 1995. Johnson, A.I., 1967, Specific Yield – Compilation of Specific Yields for Various Materials: U.S. Geological Survey Water Supply Paper 1662-D. NCGS (North Carolina Geologic Survey), 1985. Geologic Map of North Carolina. Pippin, Charles, et al., October 3, 2003, Distribution of Total Arsenic in Groundwater in the North. Carolina Piedmont, Department of Environment and Natural Resources, Groundwater Section, Resource Evaluation Program Mooresville Regional Office. Shuying Wang, et al., 2008. GSA (Geological Society of America), “Petrologic and Hydrogeologic Characteristics of a Felsic Metavolcanic Tuff Hydrogeologic Unit in the Carolina Terrane: Preliminary Findings from the NC Zoo Groundwater Research Station, Asheboro, Randolph County, NC” from Abstracts with Programs, Vol. 40, No. 4, p. 53. g:\projects\waste management\randolph county\141122017 - randolph co lf - nc\phase 101 - 1st sa wqm event\200 deliverables\252 final issued\141122017.101-003-r-rev0-1st sa wqmr.docx TABLES June 2017 1 of 1 141122017.101 0739612716.102 G:\PROJECTS\Waste Management\Randolph County\141122017 - Randolph Co LF - NC\Phase 101 - 1st SA WQM Event\600 CALCULATIONS\Tables April 2017.xlsx TOC Elevation (ft AMSL) Date GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW 09/22/94 591.76 19.21 ------------661.80 60.87 612.91 12.05 565.70 21.27 581.09 13.64 594.34 23.45 ------------------------682.81 11.95 11/08/94 590.22 20.75 ------------661.43 61.24 612.90 12.06 565.22 21.75 578.50 16.23 593.86 23.93 ---------------------------- 01/18/95 593.92 17.05 ------------661.35 61.32 616.08 8.88 566.23 20.74 584.11 10.62 594.81 22.98 ---------------------------- 04/23/96 594.57 16.40 ------------670.56 52.11 613.87 11.09 566.26 20.71 581.78 12.95 597.74 20.05 ------------------------687.39 7.37 06/17/97 595.06 15.91 ------------672.12 50.55 613.31 11.65 565.81 21.16 578.72 16.01 597.05 20.74 ------------------------684.60 10.16 10/16/97 593.86 17.11 ------------668.10 54.57 613.51 11.45 565.30 21.67 575.39 19.34 594.95 22.84 ------------------------682.11 12.65 04/21/98 598.00 12.97 ------------673.00 49.67 616.06 8.90 567.35 19.62 585.57 9.16 600.16 17.63 ------------------------689.28 5.48 04/07/99 596.02 14.95 ------------666.42 56.25 614.44 10.52 566.25 20.72 583.73 11.00 597.34 20.45 ------------------------683.74 11.02 10/13/99 595.35 15.62 ------------662.22 60.45 614.96 10.00 566.25 20.72 581.80 12.93 595.81 21.98 ------------------------680.58 14.18 04/05/00 596.03 14.94 ------------665.47 57.20 613.78 11.18 566.06 20.91 584.46 10.27 599.79 18.00 ------------------------683.61 11.15 10/25/00 593.83 17.14 ------------661.24 61.43 613.49 11.47 564.69 22.28 576.28 18.45 594.79 23.00 ------------------------679.36 15.40 04/04/01 595.97 15.00 ------------661.07 61.60 614.96 10.00 566.72 20.25 584.95 9.78 599.17 18.62 ------------------------682.76 12.00 04/08/02 594.79 16.18 578.22 4.53 --------658.42 64.25 613.76 11.20 566.28 20.69 583.61 11.12 598.03 19.76 ------------------------682.15 12.61 10/21/02 594.46 16.51 578.15 4.60 --------653.82 68.85 614.01 10.95 562.89 24.08 581.41 13.32 593.48 24.31 ------------------------677.45 17.31 04/14/03 598.32 12.65 578.40 4.35 --------667.12 55.55 615.19 9.77 569.30 17.67 585.08 9.65 602.49 15.30 ------------------------687.30 7.46 10/01/03 596.68 14.29 577.11 5.64 --------668.92 53.75 613.71 11.25 566.75 20.22 581.94 12.79 601.02 16.77 ------------------------684.27 10.49 04/05/04 594.96 16.01 577.64 5.11 --------666.98 55.69 614.79 10.17 566.60 20.37 583.53 11.20 600.97 16.82 ------------------------684.28 10.48 10/18/04 595.69 15.28 576.77 5.98 --------663.77 58.90 613.75 11.21 566.14 20.83 581.83 12.90 599.61 18.18 ------------------------680.90 13.86 04/07/05 596.22 14.75 578.10 4.65 --------669.97 52.70 613.40 11.56 567.55 19.42 584.00 10.73 603.09 14.70 ------------------------684.65 10.11 10/06/05 592.87 18.10 577.17 5.58 --------663.53 59.14 611.94 13.02 561.82 25.15 573.06 21.67 597.38 20.41 ------------------------679.08 15.68 04/03/06 593.08 17.89 577.76 4.99 --------664.57 58.10 613.80 11.16 566.50 20.47 582.05 12.68 601.36 16.43 ------------------------681.20 13.56 10/03/06 591.87 19.10 577.38 5.37 --------659.26 63.41 612.41 12.55 563.20 23.77 574.54 20.19 597.46 20.33 ------------------------676.95 17.81 04/05/07 594.80 16.17 577.75 5.00 --------664.74 57.93 613.92 11.04 566.67 20.30 581.85 12.88 601.69 16.10 ------------------------682.26 12.50 10/18/07 590.04 20.93 576.83 5.92 --------655.87 66.80 609.32 15.64 ----570.74 23.99 592.68 25.11 ------------------------676.35 18.41 04/28-29/08 594.57 16.40 570.88 11.87 569.08 18.25 700.65 18.45 658.64 64.03 617.55 7.41 568.07 18.90 583.01 11.72 600.33 17.46 ----------------618.11 6.51 637.72 3.82 685.12 9.64 10/22/08 593.19 17.78 566.14 16.61 563.74 23.59 696.10 23.00 657.41 65.26 613.86 11.10 566.39 20.58 578.41 16.32 595.84 21.95 ----------------615.08 9.54 636.36 5.18 680.32 14.44 04/07/09 596.59 14.38 568.14 14.61 ----701.37 17.73 664.68 57.99 614.10 10.86 569.01 17.96 583.53 11.20 601.99 15.80 ----------------617.02 7.60 636.45 5.09 684.54 10.22 10/19/09 592.67 18.30 565.33 17.42 563.31 24.02 696.14 22.96 660.17 62.50 613.83 11.13 565.27 21.70 575.27 19.46 594.36 23.43 ----------------614.51 10.11 636.34 5.20 679.85 14.91 4/28-29/10 595.59 15.38 566.66 16.09 564.91 22.42 707.73 11.37 669.52 53.15 613.85 11.11 567.26 19.71 579.09 15.64 600.17 17.62 ----------------615.81 8.81 636.10 5.44 683.19 11.57 10/12/10 593.71 17.26 565.05 17.70 562.93 24.40 697.28 21.82 662.77 59.90 613.80 11.16 565.10 21.87 574.93 19.80 594.32 23.47 ----------------614.52 10.10 636.53 5.01 680.21 14.55 4/11-13/11 595.36 15.61 567.60 15.15 568.46 18.87 710.55 8.55 661.22 61.45 614.41 10.55 568.59 18.38 583.92 10.81 599.98 17.81 584.93 11.99 587.69 9.11 567.89 9.84 566.73 10.84 616.26 8.36 636.48 5.06 683.37 11.39 10/3-4/11 592.24 18.73 565.17 17.58 564.08 23.25 694.61 24.49 657.79 64.88 613.79 11.17 565.29 21.68 576.33 18.40 593.64 24.15 ----------------614.20 10.42 636.50 5.04 678.09 16.67 04/10/12 595.71 15.26 567.70 15.05 565.96 21.37 709.47 9.63 663.99 58.68 613.94 11.02 568.58 18.39 581.75 12.98 600.90 16.89 584.52 12.40 588.29 8.51 567.45 10.28 566.40 11.17 615.95 8.67 636.22 5.32 682.96 11.80 10/15/12 591.76 19.21 565.06 17.69 563.40 23.93 697.26 21.84 657.18 65.49 613.93 11.03 565.73 21.24 575.45 19.28 593.91 23.88 ----------------614.36 10.26 636.40 5.14 679.06 15.70 04/09/13 594.76 16.21 567.61 15.14 569.02 18.31 709.38 9.72 657.65 65.02 614.25 10.71 568.21 18.76 582.83 11.90 598.84 18.95 584.64 12.28 588.51 8.29 567.53 10.20 566.52 11.05 615.71 8.91 636.41 5.13 683.30 11.46 10/07/13 592.86 18.11 564.52 18.23 562.83 24.50 702.17 16.93 661.45 61.22 613.82 11.14 564.63 22.34 574.42 20.31 595.13 22.66 583.30 13.62 587.42 9.38 564.34 13.39 563.71 13.86 612.38 12.24 636.52 5.02 679.88 14.88 04/08-09/14 597.02 13.95 568.30 14.45 569.93 17.40 714.45 4.65 664.60 58.07 616.71 8.25 568.87 18.10 583.58 11.15 601.04 16.75 585.83 11.09 590.40 6.40 568.51 9.22 567.41 10.16 617.51 7.11 636.80 4.74 687.17 7.59 10/08/14 592.47 18.50 564.07 18.68 562.42 24.91 698.54 20.56 660.90 61.77 613.37 11.59 564.16 22.81 574.37 20.36 593.80 23.99 583.01 13.91 587.18 9.62 563.91 13.82 563.41 14.16 613.97 10.65 636.19 5.35 680.30 14.46 04/08/15 595.06 15.91 567.44 15.31 566.65 20.68 707.95 11.15 661.33 61.34 613.93 11.03 568.18 18.79 581.75 12.98 599.03 18.76 ----------------616.31 8.31 636.24 5.30 682.39 12.37 10/28-30/15 ----565.81 16.94 568.23 19.10 696.21 22.89 656.92 65.75 614.46 10.50 565.97 21.00 580.78 13.95 594.27 23.52 584.09 12.83 587.89 8.91 565.73 12.00 ----615.28 9.34 636.55 4.99 ---- 04/05-06/16 596.20 14.77 567.57 15.18 569.38 17.95 713.95 5.15 666.29 56.38 614.12 10.84 568.39 18.58 581.92 12.81 600.38 17.41 584.98 11.94 589.92 6.88 567.61 10.12 566.49 11.08 616.41 8.21 636.39 5.15 685.53 9.23 10/04/16 ----565.76 16.99 565.22 22.11 701.50 17.60 660.21 62.46 613.79 11.09 566.07 20.90 578.18 16.55 594.90 22.89 583.93 12.99 588.47 8.21 565.84 11.89 565.18 12.39 614.97 9.65 636.57 4.97 683.16 11.60 04/03/17 593.96 17.01 566.37 16.38 565.79 21.54 704.41 14.69 657.84 64.83 613.94 10.94 566.78 20.19 580.78 13.95 596.61 21.18 584.39 12.53 588.85 7.83 566.25 11.48 565.51 12.06 615.67 8.95 636.29 5.25 681.74 13.02 MEAN 594.44 16.53 570.85 11.90 565.85 21.48 703.14 15.96 662.84 59.83 613.99 10.96 566.34 20.63 580.24 14.49 597.64 20.15 584.36 12.56 588.46 8.31 566.51 11.22 565.71 11.86 615.48 9.14 636.48 5.06 682.33 12.43 MAXIMUM 598.32 20.93 578.40 18.68 569.93 24.91 714.45 24.49 673.00 68.85 617.55 15.64 569.30 25.15 585.57 23.99 603.09 25.11 585.83 13.91 590.40 9.62 568.51 13.82 567.41 14.16 618.11 12.24 637.72 5.44 689.28 18.41 MINIMUM 590.04 12.65 564.07 4.35 562.42 17.40 694.61 4.65 653.82 49.67 609.32 7.41 561.82 17.67 570.74 9.16 592.68 14.70 583.01 11.09 587.18 6.40 563.91 9.22 563.41 10.16 612.38 6.51 636.10 3.82 676.35 5.48 Notes:GW Elev = Groundwater elevation in feet above mean sea level (AMSL) DTW = Depth to Water (measured in feet below top of casing) TOC = top of casing -- = no data available 1) Wells MW-1, MW-2, MW-3, MW-4, MW-10D, MW-11S, MW-11D, MW-A1, MW-A2, and MW-A3 are not sampled as part of the compliance network, but are used for piezometric data. 2) Historical data prior to April 2008 provided by Randolph County and taken from historical reports from Hazen and Sawyer and Environment 1. 3) The TOC of MW-6 was reduced 0.08 feet and the TOC of MW-10D was reduced 0.12 feet in order to install dedicated bladder pumps prior to the October 2016 water quality monitoring event. 587.33 719.10 617.79594.73586.97624.88722.67 694.76641.54 MW-5 MW-11SMW-10DMW-10S MW-A1MW-11D 624.62577.57577.73596.68596.92 TABLE 1 Summary of Historical Static Water Level Data Closed Randolph County Landfill, Permit No. 76-01 Monitoring Well 610.97 582.75 MW-1 MW-4MW-3MW-2 MW-9MW-8MW-7MW-6 MW-A3MW-A2 June 2017 1 of 1 141122017.101 0739612716.102 G:\PROJECTS\Waste Management\Randolph County\141122017 - Randolph Co LF - NC\Phase 101 - 1st SA WQM Event\600 CALCULATIONS\Tables April 2017.xlsx Gradient Calculation Segment Flow Direction Gradient Segment Length (feet) Gradient Segment Elevations (feet) Horizontal Gradient (i, feet) Effective Porosity (ne) Hydraulic Conductivity (K, cm/sec) Velocity (Vgw, feet/year) 640 580 640 570 640 580 Notes: Horizontal velocities based on the modified Darcy equation Vgw = Ki/ne. Value for K is from Wang and others, 2008.Value for ne is from the Hazen and Sawyer's December 4, 1997 Letter Report to NCDENR on Groundwater Monitoring Data. Average horizontal gradient = 0.058 foot/foot; average velocity = 109 feet/year 2.75E-04 96.37 141.37i3ENE8050.0745 0.15 2.75E-04 i2 NE 1378 0.0508 0.15 TABLE 2 Summary of Estimated Horizontal Flow Velocities Closed Randolph County Landfill, Permit No. 76-01 April 2017 i1 NNE 1276 0.0470 0.15 2.75E-04 89.18 June 2017 1 of 1 141122017.101 0739612716.102 G:\PROJECTS\Waste Management\Randolph County\141122017 - Randolph Co LF - NC\Phase 101 - 1st SA WQM Event\600 CALCULATIONS\Tables April 2017.xlsx Northing Easting MW-1 May 1993 730969.68 1773296.52 609.21 610.97 24.0 2 585.21 - 600.21 NA Water Levels Only MW-2 June 1987 731522.48 1774019.99 580.97 582.75 33.0 2 547.97 - 567.97 NA Corrective Action Well MW-3 September 1987 730771.64 1774456.14 585.17 587.33 30.0 2 555.17 - 575.17 NA Corrective Action Well MW-4 September 1987 729062.23 1773249.03 716.53 719.10 47.5 2 669.03 - 699.03 NA Water Levels Only MW-5 September 17, 1994 729547.38 1773540.91 720.55 722.67 68.5 2 652.05 - 667.05 Bedrock Compliance Well MW-6 September 12, 1994 730556.43 1772967.50 622.96 624.96 17.8 2 605.46 - 615.46 Saprolite / Bedrock Compliance Well MW-7 September 12, 1994 731476.90 1774015.84 585.14 586.97 26.0 2 560.14 - 575.14 Saprolite Compliance Well MW-8 September 1994 730738.59 1774321.51 592.68 594.73 29.0 2 564.68 - 579.68 NA Compliance Well MW-9 September 13, 2014 729956.09 1774063.62 615.93 617.79 33.0 2 582.93 - 597.93 Saprolite / PWR Compliance Well MW-10S December 8, 2010 731020.76 1773274.20 594.48 596.92 25.0 2 569.48 - 584.48 Saprolite Compliance Well MW-10D December 7, 2010 731017.22 1773270.37 594.56 596.80 73.0 2 521.56 - 531.56 Bedrock Corrective Action Well MW-11S December 1, 2010 731567.02 1774109.06 574.88 577.73 25.0 2 549.88 - 559.88 Saprolite / PWR Corrective Action Well MW-11D December 2, 2010 731572.75 1774116.06 574.64 577.57 65.0 2 509.64 - 519.64 Bedrock Water Levels Only MW-A1 June 1993 730435.04 1772857.60 623.50 624.62 15.0 2 611.00 - 622.00 NA Water Levels Only MW-A2 May 1993 728762.14 1772787.17 639.41 641.54 17.5 2 623.41 - 639.41 NA Water Levels Only MW-A3 June 1993 729065.19 1772398.70 693.14 694.76 32.0 2 663.14 - 683.14 NA Water Levels Only Notes:ft AMSL = feet above mean sea level ft bgs = feet below ground surface TOC = Top of Well Casing Elevation NA = no data available PWR = partially weathered rock Well construction informationfor all wells installed prior to 2010 provided by Hazen & Sawyer and Randolph County. Groundwater Monitoring Network Information: MW-5 is the facility's background well. MW-2 was replaced by MW-7. MW-3 was replaced by MW-8. MW-4 was replaced by MW-5. MW-A1 was replaced by MW-6. MW-1 was replaced by MW-10S TABLE 3 Summary of Well Construction Information Closed Randolph County Landfill, Permit No. 76-01 Well Identification Ground Surface Elevation (ft AMSL) TOC Elevation (ft AMSL) Well Depth (ft bgs) Well Diameter (inches) Screened Interval (ft AMSL) Well Status Geology of Screened IntervalDate of Construction Coordinates June 2017 1 of 13 141122017.101 0739612716.102 G:\PROJECTS\Waste Management\Randolph County\141122017 - Randolph Co LF - NC\Phase 101 - 1st SA WQM Event\600 CALCULATIONS\Tables April 2017.xlsx MW-5 MW-6 MW-7 MW-8 MW-9 MW-10S Antimony ug/L 09/22/94 --30 ND ND ND ND ND --ND GWPS = 1 ug/L ug/L 11/08/94 --30 ND ND ND ND ND --ND EPA MCL = 6 ug/L ug/L 01/18/95 --30 ND ND ND ND ND --ND ug/L 04/23/96 --30 ND ND ND ND ND --ND ug/L 06/17/97 --30 ND ND ND ND ND --ND ug/L 10/16/97 --30 ND ND ND ND ND --ND ug/L 04/21/98 --30 ND ND ND ND ND --ND ug/L 04/07/99 --30 ND ND ND ND ND --ND ug/L 10/13/99 --30 ND ND ND ND ND --ND ug/L 04/05/00 --30 ND ND ND ND ND --ND ug/L 10/25/00 --30 ND ND ND ND ND --ND ug/L 04/04/01 --30 ND ND ND ND ND --ND ug/L 04/08/02 --30 ND ND ND ND ND --ND ug/L 10/21/02 --30 ND ND ND ND ND --ND ug/L 04/14/03 --30 ND ND ND ND ND --ND ug/L 10/01/03 --30 ND ND ND ND ND --ND ug/L 04/05/04 --30 ND ND ND ND ND --ND ug/L 10/18/04 --30 ND ND ND ND ND --ND ug/L 04/07/05 --30 ND ND ND ND ND --ND ug/L 10/06/05 --30 ND ND ND ND ND --ND ug/L 04/03/06 --30 ND ND ND ND ND --ND ug/L 10/03/06 --30 ND ND ND ND ND --ND ug/L 04/05/07 --6 ND ND ND ND ND --ND ug/L 10/18/07 --6 0.1 B ND --ND ND --0.1 J ug/L 04/29/08 --6 ND ND ND ND 3.38 J --ND ug/L 10/23/08 --6 ND ND ND ND ND --ND ug/L 04/07/09 --6 ND ND ND ND ND --ND ug/L 10/19/09 --6 0.241 B 0.173 B 0.118 B 0.168 B 0.101 B --0.102 J ug/L 04/28/10 --6 ND ND ND ND ND --ND ug/L 10/12/10 --6 ND ND ND ND ND --ND ug/L 04/11/11 --6 ND ND ND ND ND --ND ug/L 10/04/11 --6 ND ND ND ND ND --ND ug/L 04/10/12 --6 0.252 J ND 0.975 J 0.386 J ND --ND ug/L 10/15/12 --6 0.223 J ND 0.557 J ND 0.367 J --ND ug/L 04/09/13 --6 ND ND 0.592 J ND ND --ND ug/L 10/08/13 --6 ND ND ND ND ND --ND ug/L 04/08/14 --6 ND ND 1.18 J ND ND --ND ug/L 10/08/14 0.22 6 ND ND 0.474 J ND ND --ND ug/L 04/08/15 0.22 6 ND 0.751 J 0.685 J 0.349 J ND --ND ug/L 10/28/15 0.22 6 1.02 J 1.02 J 2.91 J ND 0.428 J 0.413 J ND ug/L 04/05/16 0.22 6 0.504 J ND ND ND ND ND ND ug/L 10/04/16 0.22 6 0.330 B ND 0.641 B ND ND ND 0.388 J ug/L 04/03/17 0.37 6 ND ND ND ND ND ND ND Arsenic ug/L 09/22/94 --10 ND ND ND ND ND --ND NC 2L = 10 ug/L ug/L 11/08/94 --10 ND ND ND ND ND --ND EPA MCL = 10 ug/L ug/L 01/18/95 --10 ND ND ND ND ND --ND ug/L 04/23/96 --10 ND ND ND ND ND --ND ug/L 06/17/97 --10 ND ND ND ND ND --ND ug/L 10/16/97 --10 ND ND ND ND ND --ND ug/L 04/21/98 --10 ND ND ND ND ND --ND ug/L 04/07/99 --10 ND ND ND ND ND --ND ug/L 10/13/99 --10 ND ND ND ND ND --ND ug/L 04/05/00 --10 ND ND ND ND ND --ND ug/L 10/25/00 --10 ND ND ND ND ND --ND ug/L 04/04/01 --10 ND ND 12 ND ND --ND ug/L 04/08/02 --10 ND ND ND ND ND --ND ug/L 10/21/02 --10 ND ND ND ND ND --ND ug/L 04/14/03 --10 ND ND ND ND ND --ND ug/L 10/01/03 --10 ND ND ND ND ND --ND ug/L 04/05/04 --10 ND ND ND ND ND --ND ug/L 10/18/04 --10 ND ND ND ND ND --ND ug/L 04/07/05 --10 ND ND ND ND ND --ND ug/L 10/06/05 --10 ND ND ND ND ND --ND ug/L 04/03/06 --10 ND 13 ND ND ND --ND ug/L 10/03/06 --10 ND ND ND ND ND --ND ug/L 04/05/07 --10 ND ND ND ND ND --ND ug/L 10/18/07 --10 ND 2.1 J --ND ND --ND ug/L 04/29/08 --10 2.1 J ND ND ND ND --ND ug/L 10/23/08 --10 ND ND ND ND ND --ND ug/L 04/07/09 --10 ND ND ND ND ND --ND ug/L 10/19/09 --10 4.05 J 5.56 J 5.85 J 3.89 J ND --ND ug/L 04/28/10 --10 ND ND ND ND ND --ND ug/L 10/12/10 --10 ND ND ND ND ND --ND ug/L 04/11/11 --10 3.67 J ND ND ND ND --ND ug/L 10/04/11 --10 4.64 J ND ND ND ND --ND ug/L 04/10/12 --10 ND ND ND ND ND --3.79 J ug/L 10/15/12 --10 ND 2.92 J ND ND ND --ND ug/L 04/09/13 --10 ND ND ND 3.15 J ND --ND ug/L 10/08/13 --10 ND ND ND ND ND --ND ug/L 04/08/14 --10 ND ND ND ND ND --ND ug/L 10/08/14 5.4 10 ND ND ND ND ND --ND ug/L 04/08/15 5.4 10 ND ND ND ND ND --ND ug/L 10/28/15 5.4 10 ND ND ND ND ND ND ND ug/L 04/05/16 6.8 10 ND ND ND ND ND ND ND ug/L 10/04/16 6.8 10 ND ND ND ND ND ND ND ug/L 04/03/17 6.8 10 ND ND ND ND ND ND ND Barium ug/L 09/22/94 --500 ND ND ND ND ND --ND NC 2L = 700 ug/L ug/L 11/08/94 --500 ND ND ND ND ND --ND EPA MCL = 2000 ug/L ug/L 01/18/95 --500 ND ND ND ND ND --ND ug/L 04/23/96 --500 ND ND ND ND ND --ND ug/L 06/17/97 --500 ND ND ND ND ND --ND ug/L 10/16/97 --500 ND ND ND ND ND --ND ug/L 04/21/98 --500 ND ND ND ND ND --ND ug/L 04/07/99 --500 ND ND ND ND ND --ND ug/L 10/13/99 --500 ND ND ND ND ND --ND ug/L 04/05/00 --500 ND ND ND ND ND --ND ug/L 10/25/00 --500 ND ND ND ND ND --ND ug/L 04/04/01 --500 ND ND ND ND ND --ND ug/L 04/08/02 --500 ND ND ND ND ND --ND ug/L 10/21/02 --500 ND ND ND ND ND --ND ug/L 04/14/03 --500 ND ND ND ND ND --ND ug/L 10/01/03 --500 ND ND ND ND ND --ND ug/L 04/05/04 --500 ND ND ND ND ND --ND ug/L 10/18/04 --500 ND ND ND ND ND --ND ug/L 04/07/05 --500 ND ND ND ND ND --ND ug/L 10/06/05 --500 ND ND ND ND ND --ND ug/L 04/03/06 --500 ND ND ND ND ND --ND ug/L 10/03/06 --500 ND ND ND ND ND --ND ug/L 04/05/07 --100 ND ND ND ND ND --ND ug/L 10/18/07 --100 1.2 J 54.4 J --1.2 J 4.6 J --0.04 J ug/L 04/29/08 --100 4.0 J 13.6 J 1.4 J 2.4 J 7.9 J --0.2 J ug/L 10/23/08 --100 ND 21.4 J 1.90 J 3.10 J 5.70 J --ND ug/L 04/07/09 --100 ND 16.9 J ND ND 9.48 J --ND ug/L 10/19/09 --100 1.81 J 21.3 J 2.84 J 1.61 J 6.45 J --ND ug/L 04/28/10 --100 1.77 J 34.2 J 1.81 J 2.95 J 14.1 J --ND ug/L 10/12/10 --100 1.74 J 18.7 J 2.22 J 2.03 J 5.67 J --ND ug/L 04/11/11 --100 2.68 J 18.9 J 1.94 J 2.57 J 10.2 J --ND ug/L 10/04/11 --100 3.26 J 23.7 J 2.84 J 2.09 J 6.87 J --ND ug/L 04/10/12 --100 ND 12.4 J 2.95 J 2.66 J 14.6 J --ND ug/L 10/15/12 --100 1.17 B 26.5 J 6.52 J 2.09 B 7.01 J --1.04 J ug/L 04/09/13 --100 2.03 J 12.2 J 1.95 J 3.00 J 10.1 J --ND ug/L 10/08/13 --100 3.32 J 22.7 J 2.95 J 2.75 J 8.38 J --ND ug/L 04/08/14 --100 2.10 B 9.36 J 1.82 B 3.38 B 13.6 J --1.09 J ug/L 10/08/14 1.0 100 4.33 B 24.7 J 2.43 B 3.40 B 6.83 B --3.14 J ug/L 04/08/15 1.0 100 3.05 J 12.8 J 2.21 J 2.86 J 9.99 J --ND ug/L 10/28/15 1.0 100 1.93 B 19.6 J 2.21 B 2.17 B 6.98 J 4.44 B 1.20 J ug/L 04/05/16 1.0 100 2.54 J 8.85 J 1.77 J 2.19 J 13.4 J 4.62 J ND ug/L 10/04/16 1.0 100 1.40 J 19.8 J 2.44 J 2.91 J 7.60 J 5.33 J ND ug/L 04/03/17 1.0 100 ND 18.9 J ND 2.53 J 8.82 J 4.93 J ND Summary of Historical Groundwater Monitoring Results TABLE 4 Closed Randolph County Landfill, Permit No. 76-01 Upgradient WellSWS Reporting Limit Detected Monitoring Constituent/Parameter Units Date Blanks Method Detection Limit Downgradient Wells June 2017 2 of 13 141122017.101 0739612716.102 G:\PROJECTS\Waste Management\Randolph County\141122017 - Randolph Co LF - NC\Phase 101 - 1st SA WQM Event\600 CALCULATIONS\Tables April 2017.xlsx MW-5 MW-6 MW-7 MW-8 MW-9 MW-10S Summary of Historical Groundwater Monitoring Results TABLE 4 Closed Randolph County Landfill, Permit No. 76-01 Upgradient WellSWS Reporting Limit Detected Monitoring Constituent/Parameter Units Date Blanks Method Detection Limit Downgradient Wells Beryllium ug/L 09/22/94 --2 ND ND ND ND ND --ND GWPS = 4 ug/L ug/L 11/08/94 --2 ND ND ND ND ND --ND EPA MCL = 4 ug/L ug/L 01/18/95 --2 ND ND ND ND ND --ND ug/L 04/23/96 --2 ND ND ND ND ND --ND ug/L 06/17/97 --2 ND ND ND 3 ND --ND ug/L 10/16/97 --2 ND ND ND ND ND --ND ug/L 04/21/98 --2 ND ND ND ND ND --ND ug/L 04/07/99 --2 ND ND ND ND ND --ND ug/L 10/13/99 --2 ND 3 ND ND ND --ND ug/L 04/05/00 --2 ND ND ND ND ND --ND ug/L 10/25/00 --2 ND ND ND ND ND --ND ug/L 04/04/01 --2 ND ND ND ND ND --ND ug/L 04/08/02 --2 ND ND ND ND ND --ND ug/L 10/21/02 --2 ND ND ND ND ND --ND ug/L 04/14/03 --2 ND ND ND ND ND --ND ug/L 10/01/03 --2 ND ND ND 5 ND --ND ug/L 04/05/04 --2 ND ND ND ND ND --ND ug/L 10/18/04 --2 ND 11 ND ND ND --ND ug/L 04/07/05 --2 ND 5 ND ND ND --ND ug/L 10/06/05 --2 ND 3 ND ND ND --ND ug/L 04/03/06 --2 ND 4 ND ND ND --ND ug/L 10/03/06 --2 ND ND ND ND ND --ND ug/L 04/05/07 --1 ND ND ND ND ND --ND ug/L 10/18/07 --1 ND 0.7 J --ND ND --ND ug/L 04/29/08 --1 ND ND ND ND ND --ND ug/L 10/23/08 --1 ND ND 0.20 J ND ND --ND ug/L 04/07/09 --1 ND ND 0.36 J ND ND --ND ug/L 10/19/09 --1 ND 0.179 B 0.859 B 0.153 B ND --0.174 J ug/L 04/28/10 --1 ND ND 0.350 J ND ND --ND ug/L 10/12/10 --1 ND ND 0.378 J ND ND --ND ug/L 04/11/11 --1 ND ND 0.325 J ND ND --ND ug/L 10/04/11 --1 ND ND 0.315 J ND ND --ND ug/L 04/10/12 --1 ND ND 0.422 J ND ND --ND ug/L 10/15/12 --1 ND ND 0.167 J ND ND --ND ug/L 04/09/13 --1 ND ND 0.282 J ND ND --ND ug/L 10/08/13 --1 ND ND 0.351 J ND ND --ND ug/L 04/08/14 --1 ND ND 0.379 J ND ND --ND ug/L 10/08/14 0.10 1 ND ND 0.399 J ND ND --ND ug/L 04/08/15 0.10 1 ND ND 0.423 J ND ND --ND ug/L 10/28/15 0.10 1 ND ND 0.293 J ND ND ND ND ug/L 04/05/16 0.10 1 ND ND 0.341 J ND ND ND ND ug/L 10/04/16 0.10 1 ND ND 0.234 J ND ND ND ND ug/L 04/03/17 0.10 1 ND ND 0.318 J ND ND ND ND Cadmium ug/L 09/22/94 --1 ND ND ND ND ND --ND NC 2L = 2 ug/L ug/L 11/08/94 --1 ND ND ND ND ND --ND EPA MCL = 5 ug/L ug/L 01/18/95 --1 ND ND ND ND ND --ND ug/L 04/23/96 --1 1 ND ND ND 1 --ND ug/L 06/17/97 --1 ND ND ND ND ND --ND ug/L 10/16/97 --1 ND ND ND ND ND --ND ug/L 04/21/98 --1 ND ND ND ND ND --ND ug/L 04/07/99 --1 ND ND ND ND ND --ND ug/L 10/13/99 --1 ND ND ND ND ND --ND ug/L 04/05/00 --1 ND ND ND ND ND --ND ug/L 10/25/00 --1 ND ND ND ND ND --ND ug/L 04/04/01 --1 ND ND ND ND ND --ND ug/L 04/08/02 --1 ND ND ND ND ND --ND ug/L 10/21/02 --1 3 ND ND ND ND --ND ug/L 04/14/03 --1 2 ND ND ND ND --ND ug/L 10/01/03 --1 ND ND ND ND ND --ND ug/L 04/05/04 --1 1 ND ND ND ND --ND ug/L 10/18/04 --1 ND ND ND ND ND --ND ug/L 04/07/05 --1 ND ND ND ND ND --ND ug/L 10/06/05 --1 ND ND ND ND ND --ND ug/L 04/03/06 --1 ND 1 ND ND ND --ND ug/L 10/03/06 --1 2 ND ND ND ND --ND ug/L 04/05/07 --1 ND ND ND ND ND --ND ug/L 10/18/07 --1 0.5 J 1 --0.1 J 0.1 J --ND ug/L 04/29/08 --1 ND ND ND ND ND --ND ug/L 10/23/08 --1 ND ND ND ND ND --ND ug/L 04/07/09 --1 0.37 J ND 0.37 J ND 0.11 J --ND ug/L 10/19/09 --1 ND ND 0.640 J ND ND --ND ug/L 04/28/10 --1 ND ND ND ND ND --ND ug/L 10/12/10 --1 ND ND 0.501 J ND ND --ND ug/L 04/11/11 --1 ND ND ND ND ND --ND ug/L 10/04/11 --1 ND ND 0.429 J ND ND --ND ug/L 04/10/12 --1 ND ND 0.758 J ND ND --ND ug/L 10/15/12 --1 ND ND 0.730 B ND ND --0.433 J ug/L 04/09/13 --1 ND ND 0.421 J ND ND --ND ug/L 10/08/13 --1 ND ND 0.446 J ND ND --ND ug/L 04/08/14 --1 ND ND 0.467 J ND ND --ND ug/L 10/08/14 0.36 1 ND 0.530 J 0.488 J ND ND --ND ug/L 04/08/15 0.36 1 ND ND ND ND ND --0.427 J ug/L 10/28/15 0.36 1 ND ND 0.539 J ND ND ND ND ug/L 04/05/16 0.36 1 ND ND ND ND ND ND ND ug/L 10/04/16 0.36 1 ND ND 0.481 J ND ND ND ND ug/L 04/03/17 0.36 1 ND ND 0.536 J ND ND ND ND Chromium ug/L 09/22/94 --10 ND ND ND ND ND --ND NC 2L = 10 ug/L ug/L 11/08/94 --10 ND ND ND ND ND --ND EPA MCL = 100 ug/L ug/L 01/18/95 --10 ND ND ND ND ND --ND ug/L 04/23/96 --10 ND ND ND ND ND --ND ug/L 06/17/97 --10 ND ND ND 18 ND --ND ug/L 10/16/97 --10 ND ND 22 22 ND --ND ug/L 04/21/98 --10 ND ND ND ND ND --ND ug/L 04/07/99 --10 ND 28 ND ND ND --ND ug/L 10/13/99 --10 ND 81 ND 12 ND --ND ug/L 04/05/00 --10 ND 45 ND 15 ND --ND ug/L 10/25/00 --10 ND 152 23 24 ND --ND ug/L 04/04/01 --10 ND 104 ND 40 ND --ND ug/L 04/08/02 --10 ND 212 ND 33 ND --ND ug/L 10/21/02 --10 12 77 ND 14 ND --ND ug/L 04/14/03 --10 ND 94 ND ND ND --ND ug/L 10/01/03 --10 ND 28 11 43 ND --ND ug/L 04/05/04 --10 ND 14 ND ND 11 --ND ug/L 10/18/04 --10 ND 47 ND 12 ND --ND ug/L 04/07/05 --10 ND 21 ND ND ND --ND ug/L 10/06/05 --10 ND 26 ND ND ND --ND ug/L 04/03/06 --10 ND 28 ND ND ND --ND ug/L 10/03/06 --10 ND 12 ND ND ND --ND ug/L 04/05/07 --10 ND ND ND ND ND --ND ug/L 10/18/07 --10 0.4 J 8.6 J --ND ND --ND ug/L 04/29/08 --10 3.5 J ND ND ND ND --ND ug/L 10/23/08 --10 ND ND ND ND ND --ND ug/L 04/07/09 --10 0.8 J 1.4 J ND ND ND --ND ug/L 10/19/09 --10 ND ND 1.19 J ND ND --ND ug/L 04/28/10 --10 ND ND ND ND ND --ND ug/L 10/12/10 --10 ND ND ND ND ND --ND ug/L 04/11/11 --10 ND 1.88 J 3.98 J 4.25 J 4.16 J --ND ug/L 10/04/11 --10 1.03 J ND ND ND ND --ND ug/L 04/10/12 --10 ND ND ND ND ND --ND ug/L 10/15/12 --10 ND ND 3.03 J ND 1.13 J --ND ug/L 04/09/13 --10 ND 4.21 J ND ND ND --ND ug/L 10/08/13 --10 ND ND ND ND ND --ND ug/L 04/08/14 --10 1.68 J 1.41 J ND ND ND --ND ug/L 10/08/14 1.4 10 2.42 J 1.57 J ND ND ND --ND ug/L 04/08/15 1.4 10 ND ND ND ND ND --ND ug/L 10/28/15 1.4 10 ND ND ND ND ND ND ND ug/L 04/05/16 1.4 10 ND ND ND ND ND ND ND ug/L 10/04/16 1.4 10 ND 1.92 J ND ND ND ND ND ug/L 04/03/17 1.1 10 ND ND ND 3.01 B ND ND 4.45 J June 2017 3 of 13 141122017.101 0739612716.102 G:\PROJECTS\Waste Management\Randolph County\141122017 - Randolph Co LF - NC\Phase 101 - 1st SA WQM Event\600 CALCULATIONS\Tables April 2017.xlsx MW-5 MW-6 MW-7 MW-8 MW-9 MW-10S Summary of Historical Groundwater Monitoring Results TABLE 4 Closed Randolph County Landfill, Permit No. 76-01 Upgradient WellSWS Reporting Limit Detected Monitoring Constituent/Parameter Units Date Blanks Method Detection Limit Downgradient Wells Cobalt ug/L 09/22/94 --10 ND ND ND ND ND --ND GWPS = 1 ug/L ug/L 11/08/94 --10 ND 15 ND ND ND --ND (No EPA MCL)ug/L 01/18/95 --10 ND ND ND ND ND --ND ug/L 04/23/96 --10 ND ND ND ND ND --ND ug/L 06/17/97 --10 ND 10 ND 25 ND --ND ug/L 10/16/97 --10 ND ND 17 18 ND --ND ug/L 04/21/98 --10 ND ND ND ND ND --ND ug/L 04/07/99 --10 ND 15 ND ND ND --ND ug/L 10/13/99 --10 ND 39 ND 10 ND --ND ug/L 04/05/00 --10 ND 21 ND 13 ND --ND ug/L 10/25/00 --10 ND 54 26 20 ND --ND ug/L 04/04/01 --10 ND 41 ND 35 ND --ND ug/L 04/08/02 --10 ND 78 ND 21 ND --ND ug/L 10/21/02 --10 19 39 ND 12 ND --ND ug/L 04/14/03 --10 10 42 ND ND ND --ND ug/L 10/01/03 --10 ND 19 16 46 ND --ND ug/L 04/05/04 --10 ND ND ND ND ND --ND ug/L 10/18/04 --10 ND 44 ND ND ND --ND ug/L 04/07/05 --10 ND 10 ND ND ND --ND ug/L 10/06/05 --10 ND ND ND ND ND --ND ug/L 04/03/06 --10 ND 11 ND ND ND --ND ug/L 10/03/06 --10 ND ND ND ND ND --ND ug/L 04/05/07 --10 ND ND ND ND ND --ND ug/L 10/18/07 --10 ND 3.5 J --ND ND --ND ug/L 04/29/08 --10 7.0 J ND 5.7 J ND ND --ND ug/L 10/23/08 --10 ND ND 6.8 J ND ND --ND ug/L 04/07/09 --10 ND 0.6 J 4.9 J ND ND --ND ug/L 10/19/09 --10 ND ND 6.86 J ND ND --ND ug/L 04/28/10 --10 ND ND 5.99 J ND ND --ND ug/L 10/12/10 --10 ND ND 3.67 J ND ND --ND ug/L 04/11/11 --10 ND ND 6.60 J ND ND --ND ug/L 10/04/11 --10 ND ND 4.13 J ND ND --ND ug/L 04/10/12 --10 ND ND 5.97 J ND ND --ND ug/L 10/15/12 --10 ND ND 6.68 J ND ND --ND ug/L 04/09/13 --10 ND ND 5.88 J ND ND --ND ug/L 10/08/13 --10 ND ND 6.44 J ND ND --ND ug/L 04/08/14 --10 ND 1.18 J 5.77 J ND ND --ND ug/L 10/08/14 1.1 10 ND ND 9.68 J ND ND --ND ug/L 04/08/15 1.1 10 ND ND 6.06 J ND ND --ND Verification Event ug/L 05/26/15 1.1 10 ------------ND Dissolved ug/L 05/26/15 1.1 10 ------------ND ug/L 10/28/15 1.1 10 ND ND 6.29 J ND ND 1.24 J ND ug/L 04/05/16 1.1 10 1.56 J ND 5.72 J ND ND 2.86 J ND ug/L 10/04/16 1.1 10 ND ND 6.06 J ND ND 2.54 J ND ug/L 04/03/17 1.1 10 ND 1.24 J 5.17 J ND ND 1.56 J ND Copper ug/L 09/22/94 --200 ND ND ND ND ND --ND NC 2L = 1000 ug/L ug/L 11/08/94 --200 ND ND ND ND ND --ND EPA MCL = 1300 ug/L#ug/L 01/18/95 --200 ND ND ND ND ND --ND ug/L 04/23/96 --200 ND ND ND ND ND --ND ug/L 06/17/97 --200 ND 341 ND 437 ND --ND ug/L 10/16/97 --200 ND ND ND ND ND --ND ug/L 04/21/98 --200 ND ND ND ND ND --ND ug/L 04/07/99 --200 ND ND ND ND ND --ND ug/L 10/13/99 --200 ND 216 ND ND ND --ND ug/L 04/05/00 --200 ND ND ND ND ND --ND ug/L 10/25/00 --200 210 ND ND ND ND --ND ug/L 04/04/01 --200 ND ND ND ND ND --ND ug/L 04/08/02 --200 ND 334 ND ND ND --ND ug/L 10/21/02 --200 ND ND ND ND ND --ND ug/L 04/14/03 --200 ND ND ND ND ND --ND ug/L 10/01/03 --200 ND ND ND ND ND --ND ug/L 04/05/04 --200 ND ND ND ND ND --ND ug/L 10/18/04 --200 ND ND ND ND ND --ND ug/L 04/07/05 --200 ND ND ND ND ND --ND ug/L 10/06/05 --200 ND ND ND ND ND --ND ug/L 04/03/06 --200 ND ND ND ND ND --ND ug/L 10/03/06 --200 ND ND ND ND ND --ND ug/L 04/05/07 --10 ND ND ND ND ND --ND ug/L 10/18/07 --10 1.6 B 13 --0.3 B 0.2 B --0.7 J ug/L 04/29/08 --10 10.5 2.4 B ND 1.2 B ND --0.9 J ug/L 10/23/08 --10 ND ND ND ND ND --ND ug/L 04/07/09 --10 ND 1.61 J ND ND ND --ND ug/L 10/19/09 --10 ND ND ND ND ND --1.60 J ug/L 04/28/10 --10 ND ND ND ND ND --ND ug/L 10/12/10 --10 ND 2.72 B ND ND ND --1.60 J ug/L 04/11/11 --10 ND 3.18 J ND 1.85 J ND --ND ug/L 10/04/11 --10 ND ND ND ND ND --ND ug/L 04/10/12 --10 ND ND 6.48 J ND ND --ND ug/L 10/15/12 --10 ND ND 7.40 J ND ND --ND ug/L 04/09/13 --10 ND 4.04 J ND ND ND --ND ug/L 10/08/13 --10 ND ND ND ND ND --ND ug/L 04/08/14 --10 ND ND ND ND ND --ND ug/L 10/08/14 1.6 10 ND 3.87 J ND 2.42 J ND --ND ug/L 04/08/15 1.6 10 ND ND ND ND ND --3.01 J ug/L 10/28/15 1.6 10 ND ND ND ND ND ND ND ug/L 04/05/16 1.6 10 2.12 B 1.65 B ND ND ND ND 3.64 J ug/L 10/04/16 1.6 10 7.33 B 7.07 B 3.76 B 2.54 B 4.65 B 3.38 B 5.15 J ug/L 04/03/17 0.87 10 ND 4.23 B ND ND 4.00 B ND 3.21 J Lead ug/L 09/22/94 --10 ND ND ND ND ND --ND NC 2L = 15 ug/L ug/L 11/08/94 --10 ND ND ND ND ND --ND EPA MCL = 15 ug/L#ug/L 01/18/95 --10 ND ND ND ND ND --ND ug/L 04/23/96 --10 ND ND ND ND ND --ND ug/L 06/17/97 --10 ND 16 ND 31 11 --ND ug/L 10/16/97 --10 ND ND 13 19 ND --ND ug/L 04/21/98 --10 ND ND ND ND ND --ND ug/L 04/07/99 --10 ND 13 ND ND ND --ND ug/L 10/13/99 --10 ND 63 ND 13 ND --ND ug/L 04/05/00 --10 ND 12 ND ND ND --ND ug/L 10/25/00 --10 ND 75 12 15 ND --ND ug/L 04/04/01 --10 ND 3470 42 20 ND --ND ug/L 04/08/02 --10 ND 41 ND ND ND --ND ug/L 10/21/02 --10 ND 74 ND ND ND --ND ug/L 04/14/03 --10 ND 53 ND ND ND --ND ug/L 10/01/03 --10 ND ND 11 17 ND --ND ug/L 04/05/04 --10 ND ND ND ND ND --ND ug/L 10/18/04 --10 ND 119 ND ND ND --ND ug/L 04/07/05 --10 ND 46 ND ND ND --ND ug/L 10/06/05 --10 ND 41 ND 11 ND --ND ug/L 04/03/06 --10 ND 47 ND ND ND --ND ug/L 10/03/06 --10 ND 13 ND ND ND --ND ug/L 04/05/07 --10 ND ND ND ND ND --ND ug/L 10/18/07 --10 0.1 J 8.4 J --0.1 J ND --ND ug/L 04/29/08 --10 3.6 J ND ND ND ND --ND ug/L 10/23/08 --10 ND ND ND ND ND --ND ug/L 04/07/09 --10 ND ND ND ND ND --ND ug/L 10/19/09 --10 ND ND ND ND ND --ND ug/L 04/28/10 --10 ND ND ND ND ND --ND ug/L 10/12/10 --10 ND ND ND ND ND --ND ug/L 04/11/11 --10 ND ND ND ND ND --ND ug/L 10/04/11 --10 ND ND ND ND ND --ND ug/L 04/10/12 --10 ND ND ND 3.93 B 2.38 B --2.22 J ug/L 10/15/12 --10 ND ND 2.55 J ND ND --ND ug/L 04/09/13 --10 ND ND ND ND ND --ND ug/L 10/08/13 --10 ND ND ND ND ND --ND ug/L 04/08/14 --10 ND ND ND ND ND --ND ug/L 10/08/14 2.1 10 ND ND ND ND ND --ND ug/L 04/08/15 2.1 10 ND ND ND ND ND --ND ug/L 10/28/15 2.1 10 ND ND ND ND ND ND ND ug/L 04/05/16 3.1 10 ND ND ND ND ND ND ND ug/L 10/04/16 3.1 10 ND ND ND ND ND ND ND ug/L 04/03/17 3.1 10 ND ND ND ND ND ND ND June 2017 4 of 13 141122017.101 0739612716.102 G:\PROJECTS\Waste Management\Randolph County\141122017 - Randolph Co LF - NC\Phase 101 - 1st SA WQM Event\600 CALCULATIONS\Tables April 2017.xlsx MW-5 MW-6 MW-7 MW-8 MW-9 MW-10S Summary of Historical Groundwater Monitoring Results TABLE 4 Closed Randolph County Landfill, Permit No. 76-01 Upgradient WellSWS Reporting Limit Detected Monitoring Constituent/Parameter Units Date Blanks Method Detection Limit Downgradient Wells Mercury ug/L 04/23/96 --0.5 ND ND ND ND ND --ND NC 2L = 1 ug/L ug/L 06/17/97 --0.5 ND ND ND ND ND --ND EPA MCL = 2 ug/L ug/L 04/21/98 --0.5 ND ND ND ND ND --ND ug/L 04/07/99 --0.5 ND ND ND ND ND --ND ug/L 04/05/00 --0.5 ND ND ND ND ND --ND ug/L 04/04/01 --0.5 ND ND ND ND ND --ND ug/L 04/08/02 --0.5 ND ND ND ND ND --ND ug/L 04/14/03 --0.5 ND ND ND ND ND --ND ug/L 04/05/04 --0.5 ND ND ND ND 3.8 --ND ug/L 04/07/05 --0.5 ND ND ND ND 1.4 --ND ug/L 04/03/06 --0.5 ND ND ND ND 2.0 --ND ug/L 04/05/07 --0.2 ND ND ND ND ND --ND ug/L 10/18/07 --0.2 ND ND --ND ND --ND ug/L 04/29/08 --0.2 ND ND ND ND ND --ND ug/L 04/07/09 --0.2 ND ND ND ND ND --ND ug/L 04/28/10 --0.2 ND ND ND ND ND --ND ug/L 04/11/11 --0.2 ND ND ND ND ND --ND ug/L 04/10/12 --0.2 ND ND ND ND ND --ND ug/L 04/09/13 --0.2 ND ND ND ND ND --ND ug/L 04/08/14 --0.2 ND ND ND ND ND --ND ug/L 04/08/15 --0.2 ND ND ND ND ND --ND ug/L 04/05/16 0.17 0.2 ND ND ND ND ND 0.272 ND ug/L 10/04/16 0.17 0.2 ND ND ND ND ND ND ND ug/L 04/03/17 0.17 0.2 ND ND ND ND ND ND ND Nickel ug/L 09/22/94 --50 ND ND ND ND ND --ND NC 2L = 100 ug/L ug/L 11/08/94 --50 ND ND ND ND ND --ND (No EPA MCL)ug/L 01/18/95 --50 ND ND ND ND ND --ND ug/L 04/23/96 --50 ND ND ND ND ND --ND ug/L 06/17/97 --50 ND ND ND ND ND --ND ug/L 10/16/97 --50 ND ND ND ND ND --ND ug/L 04/21/98 --50 ND ND ND ND ND --ND ug/L 04/07/99 --50 ND ND ND ND ND --ND ug/L 10/13/99 --50 ND ND ND ND ND --ND ug/L 04/05/00 --50 ND ND ND ND ND --ND ug/L 10/25/00 --50 ND 73 ND ND ND --ND ug/L 04/04/01 --50 ND ND ND ND ND --ND ug/L 04/08/02 --50 ND 91 ND ND ND --ND ug/L 10/21/02 --50 ND ND ND ND ND --ND ug/L 04/14/03 --50 ND ND ND ND ND --ND ug/L 10/01/03 --50 ND ND ND ND ND --ND ug/L 04/05/04 --50 ND ND ND ND ND --ND ug/L 10/18/04 --50 ND ND ND ND ND --ND ug/L 04/07/05 --50 ND ND ND ND ND --ND ug/L 10/06/05 --50 ND ND ND ND ND --ND ug/L 04/03/06 --50 ND ND ND ND ND --ND ug/L 10/03/06 --50 ND ND ND ND ND --ND ug/L 04/05/07 --50 ND ND ND ND ND --ND ug/L 10/18/07 --50 1.2 J 4.5 J --ND 1.6 J --ND ug/L 04/29/08 --50 4.2 J 2.3 J ND ND ND --ND ug/L 10/23/08 --50 ND 2.7 J ND 1.8 J ND --ND ug/L 04/07/09 --50 0.8 J 1.3 J 1.3 J ND 2.0 J --ND ug/L 10/19/09 --50 ND 4.49 J ND ND ND --ND ug/L 04/28/10 --50 ND ND ND ND ND --ND ug/L 10/12/10 --50 ND ND ND ND ND --ND ug/L 04/11/11 --50 ND 4.76 B 17.2 B 17.5 B 17.5 B --3.53 J ug/L 10/04/11 --50 ND ND ND ND ND --ND ug/L 04/10/12 --50 ND ND ND ND ND --ND ug/L 10/15/12 --50 ND 8.27 J 3.23 J ND 3.29 J --ND ug/L 04/09/13 --50 ND ND ND ND ND --ND ug/L 10/08/13 --50 ND 3.98 J ND ND ND --ND ug/L 04/08/14 --50 ND ND ND ND ND --ND ug/L 10/08/14 1.8 50 ND 9.07 J ND ND 1.95 J --ND ug/L 04/08/15 1.8 50 ND ND ND ND ND --ND ug/L 10/28/15 1.8 50 ND ND ND ND 2.45 J 3.83 J ND ug/L 04/05/16 2.2 50 ND ND ND ND ND 3.28 J ND ug/L 10/04/16 2.2 50 2.25 J 9.97 J 4.73 J ND 4.36 J 4.76 J ND ug/L 04/03/17 2.2 50 ND 3.12 J ND ND 3.51 J 5.82 J ND Selenium ug/L 09/22/94 --20 ND ND ND ND ND --ND NC 2L = 20 ug/L ug/L 11/08/94 --20 ND ND ND ND ND --ND EPA MCL = 50 ug/L ug/L 01/18/95 --20 ND ND ND ND ND --ND ug/L 04/23/96 --20 ND ND ND ND ND --ND ug/L 06/17/97 --20 ND ND ND ND ND --ND ug/L 10/16/97 --20 ND ND ND ND ND --ND ug/L 04/21/98 --20 ND ND ND ND ND --ND ug/L 04/07/99 --20 ND ND ND ND ND --ND ug/L 10/13/99 --20 ND ND ND ND ND --ND ug/L 04/05/00 --20 ND ND ND ND ND --ND ug/L 10/25/00 --20 ND ND ND ND ND --ND ug/L 04/04/01 --20 ND ND ND ND ND --ND ug/L 04/08/02 --20 ND ND ND ND ND --ND ug/L 10/21/02 --20 ND ND ND ND ND --ND ug/L 04/14/03 --20 ND ND ND ND ND --ND ug/L 10/01/03 --20 ND ND ND ND ND --ND ug/L 04/05/04 --20 ND ND ND ND ND --ND ug/L 10/18/04 --20 ND ND ND ND ND --ND ug/L 04/07/05 --20 ND ND ND ND ND --ND ug/L 10/06/05 --20 ND ND ND ND ND --ND ug/L 04/03/06 --20 ND ND ND ND ND --ND ug/L 10/03/06 --20 ND ND ND ND ND --ND ug/L 04/05/07 --10 ND ND ND ND ND --ND ug/L 10/18/07 --10 0.9 J ND --ND ND --ND ug/L 04/29/08 --10 ND ND ND ND ND --3.9 J ug/L 10/23/08 --10 ND ND ND ND ND --ND ug/L 04/07/09 --10 ND ND ND ND ND --3.7 J ug/L 10/19/09 --10 ND ND ND ND ND --ND ug/L 04/28/10 --10 ND ND ND ND ND --ND ug/L 10/12/10 --10 ND ND ND ND ND --ND ug/L 04/11/11 --10 ND ND ND ND ND --2.85 J ug/L 10/04/11 --10 ND ND ND ND ND --ND ug/L 04/10/12 --10 ND ND ND ND ND --ND ug/L 10/15/12 --10 ND ND ND ND ND --ND ug/L 04/09/13 --10 ND ND ND ND ND --ND ug/L 10/08/13 --10 ND ND ND ND ND --ND ug/L 04/08/14 --10 ND ND ND ND ND --ND ug/L 10/08/14 5.0 10 ND ND ND ND ND --ND ug/L 04/08/15 5.0 10 ND ND ND ND ND --ND ug/L 10/28/15 5.0 10 ND ND ND ND ND ND ND ug/L 04/05/16 6.2 10 ND ND ND ND ND ND ND ug/L 10/04/16 6.2 10 ND ND ND ND ND ND ND ug/L 04/03/17 6.2 10 ND ND ND ND ND ND ND June 2017 5 of 13 141122017.101 0739612716.102 G:\PROJECTS\Waste Management\Randolph County\141122017 - Randolph Co LF - NC\Phase 101 - 1st SA WQM Event\600 CALCULATIONS\Tables April 2017.xlsx MW-5 MW-6 MW-7 MW-8 MW-9 MW-10S Summary of Historical Groundwater Monitoring Results TABLE 4 Closed Randolph County Landfill, Permit No. 76-01 Upgradient WellSWS Reporting Limit Detected Monitoring Constituent/Parameter Units Date Blanks Method Detection Limit Downgradient Wells Silver ug/L 09/22/94 --10 ND ND ND ND ND --ND NC 2L = 20 ug/L ug/L 11/08/94 --10 ND ND ND ND ND --ND EPA MCL = 100 ug/L*ug/L 01/18/95 --10 ND ND ND ND ND --ND ug/L 04/23/96 --10 ND ND ND ND ND --ND ug/L 06/17/97 --10 ND ND ND ND ND --ND ug/L 10/16/97 --10 ND ND ND ND ND --ND ug/L 04/21/98 --10 ND ND ND ND ND --ND ug/L 04/07/99 --10 ND ND ND ND ND --ND ug/L 10/13/99 --10 ND ND ND ND ND --ND ug/L 04/05/00 --10 ND ND ND ND ND --ND ug/L 10/25/00 --10 ND ND ND ND ND --ND ug/L 04/04/01 --10 ND ND ND ND ND --ND ug/L 04/08/02 --10 ND ND ND ND ND --ND ug/L 10/21/02 --10 ND ND ND ND ND --ND ug/L 04/14/03 --10 ND ND ND ND ND --ND ug/L 10/01/03 --10 ND ND ND ND ND --ND ug/L 04/05/04 --10 ND ND ND ND ND --ND ug/L 10/18/04 --10 ND ND ND ND ND --ND ug/L 04/07/05 --10 ND ND ND ND ND --ND ug/L 10/06/05 --10 ND ND ND ND ND --ND ug/L 04/03/06 --10 ND ND ND ND ND --ND ug/L 10/03/06 --10 ND ND ND ND ND --ND ug/L 04/05/07 --10 ND ND ND ND ND --ND ug/L 10/18/07 --10 0.6 J ND --ND ND --ND ug/L 04/29/08 --10 ND ND ND ND ND --ND ug/L 10/23/08 --10 ND ND ND ND ND --ND ug/L 04/07/09 --10 1.8 B 1.5 B ND 1.7 B 1.9 B --1.4 J ug/L 10/19/09 --10 ND ND ND ND ND --ND ug/L 04/28/10 --10 ND ND ND ND ND --ND ug/L 10/12/10 --10 ND ND ND ND ND --ND ug/L 04/11/11 --10 ND ND ND ND ND --ND ug/L 10/04/11 --10 ND ND ND ND ND --ND ug/L 04/10/12 --10 ND ND ND ND ND --ND ug/L 10/15/12 --10 ND ND ND ND ND --ND ug/L 04/09/13 --10 2.05 B 2.16 B ND ND 2.18 B --2.16 J ug/L 10/08/13 --10 ND ND ND ND ND --ND ug/L 04/08/14 --10 3.21 B 2.56 B 2.48 B ND ND --3.31 J ug/L 10/08/14 1.9 10 ND ND ND ND ND --2.42 J ug/L 04/08/15 1.9 10 ND ND ND ND ND --ND ug/L 10/28/15 1.9 10 2.80 J ND ND ND ND ND ND ug/L 04/05/16 1.9 10 ND ND ND ND ND ND ND ug/L 10/04/16 1.9 10 ND ND ND ND ND ND ND ug/L 04/03/17 0.74 10 3.03 J 2.12 J ND ND 2.63 J ND ND Thallium ug/L 09/22/94 --10 ND ND ND ND ND --ND GWPS = 0.28 ug/L ug/L 11/08/94 --10 ND ND ND ND ND --ND EPA MCL = 2 ug/L ug/L 01/18/95 --10 ND ND ND ND ND --ND ug/L 04/23/96 --10 ND ND ND ND ND --ND ug/L 06/17/97 --10 ND ND ND ND ND --ND ug/L 10/16/97 --10 ND ND ND ND ND --ND ug/L 04/21/98 --10 ND ND ND ND ND --ND ug/L 04/07/99 --10 ND ND ND ND ND --ND ug/L 10/13/99 --10 ND ND ND ND ND --ND ug/L 04/05/00 --10 ND ND ND ND ND --ND ug/L 10/25/00 --10 ND ND ND ND ND --ND ug/L 04/04/01 --10 ND ND ND ND ND --ND ug/L 04/08/02 --10 ND ND ND ND ND --ND ug/L 10/21/02 --10 ND ND ND ND ND --ND ug/L 04/14/03 --10 ND ND ND ND ND --ND ug/L 10/01/03 --10 ND ND ND ND ND --ND ug/L 04/05/04 --10 ND ND ND ND ND --ND ug/L 10/18/04 --10 ND ND ND ND ND --ND ug/L 04/07/05 --10 ND ND ND ND ND --ND ug/L 10/06/05 --10 ND ND ND ND ND --ND ug/L 04/03/06 --10 ND ND ND ND ND --ND ug/L 10/03/06 --10 ND ND ND ND ND --ND ug/L 04/05/07 --5 ND ND ND ND ND --ND ug/L 10/18/07 --5 ND ND --ND ND --ND ug/L 04/29/08 --5.5 ND ND ND ND ND --ND ug/L 10/23/08 --5.5 ND ND ND ND ND --ND ug/L 04/07/09 --5.5 0.036 B 0.045 B 0.063 B ND 0.037 B --0.052 J ug/L 10/19/09 --5.5 ND ND ND ND ND --ND ug/L 04/28/10 --5.5 ND ND ND ND ND --ND ug/L 10/12/10 --5.5 ND ND ND ND ND --ND ug/L 04/11/11 --5.5 ND ND ND ND ND --ND ug/L 10/04/11 --5.5 ND ND ND ND ND --ND ug/L 04/10/12 --5.5 ND ND ND ND ND --ND ug/L 10/15/12 --5.5 ND ND ND ND ND --ND ug/L 04/09/13 --5.5 ND ND ND ND ND --ND ug/L 10/08/13 --5.5 ND ND ND ND ND --ND ug/L 04/08/14 --5.5 ND ND ND ND ND --ND ug/L 10/08/14 0.11 5.5 ND ND ND ND ND --ND ug/L 04/08/15 0.11 5.5 ND ND ND 0.177 J ND --ND ug/L 10/28/15 0.11 5.5 ND ND ND ND ND ND ND ug/L 04/05/16 0.11 5.5 ND ND ND ND ND ND ND ug/L 10/04/16 0.11 5.5 ND ND ND ND ND ND ND ug/L 04/03/17 0.11 5.5 0.211 J 0.229 J 0.188 J 0.199 J 0.338 J 0.266 J ND Tin ug/L 09/22/94 --100 ND ND ND ND ND --ND GWPS = 2000 ug/L ug/L 11/08/94 --100 ND ND ND ND ND --ND (No EPA MCL)ug/L 01/18/95 --100 ND ND ND ND ND --ND ug/L 04/23/96 --100 ND ND ND ND ND --ND ug/L 06/17/97 --100 ND ND ND ND ND --ND ug/L 10/16/97 --100 ND ND ND ND ND --ND ug/L 04/21/98 --100 ND ND ND ND ND --ND ug/L 04/07/99 --100 ND ND ND ND ND --ND ug/L 10/13/99 --100 ND ND ND ND ND --ND ug/L 04/05/00 --100 ND ND ND ND ND --ND ug/L 10/25/00 --100 ND ND ND ND ND --ND ug/L 04/04/01 --100 414 282 ND 249 163 --ND ug/L 04/08/02 --100 360 336 ND 171 145 --ND ug/L 10/21/02 --100 ND ND ND ND ND --ND ug/L 04/14/03 --100 117 ND ND ND ND --ND ug/L 10/01/03 --100 ND ND ND ND ND --ND ug/L 04/05/04 --100 176 ND ND ND ND --ND ug/L 10/18/04 --100 ND ND ND ND ND --ND ug/L 04/07/05 --100 ND ND ND ND ND --ND ug/L 10/06/05 --100 ND ND ND ND ND --ND ug/L 04/03/06 --100 ND ND ND ND ND --ND ug/L 10/03/06 --100 ND ND ND ND ND --ND ug/L 04/05/07 --100 ND ND ND ND ND --ND ug/L 04/29/08 --100 2.5 J ND 2.4 J ND ND --ND ug/L 04/07/09 --100 ND ND ND ND ND --ND ug/L 04/28/10 --100 4.96 J 3.98 J ND 3.37 J 5.49 J --ND ug/L 04/11/11 --100 4.46 J ND 2.20 J 2.63 J 4.04 J --ND ug/L 04/10/12 --100 5.12 J ND ND 3.24 J 3.80 J --ND ug/L 04/09/13 --100 5.08 J ND ND ND 3.15 J --ND ug/L 04/08/14 --100 ND ND ND ND ND --ND ug/L 04/08/15 12 100 ND ND ND ND ND --ND ug/L 04/05/16 2.4 100 ND ND ND ND ND ND 3.18 J ug/L 04/03/17 2.4 100 8.13 J ND ND 4.52 J ND ND ND June 2017 6 of 13 141122017.101 0739612716.102 G:\PROJECTS\Waste Management\Randolph County\141122017 - Randolph Co LF - NC\Phase 101 - 1st SA WQM Event\600 CALCULATIONS\Tables April 2017.xlsx MW-5 MW-6 MW-7 MW-8 MW-9 MW-10S Summary of Historical Groundwater Monitoring Results TABLE 4 Closed Randolph County Landfill, Permit No. 76-01 Upgradient WellSWS Reporting Limit Detected Monitoring Constituent/Parameter Units Date Blanks Method Detection Limit Downgradient Wells Vanadium ug/L 09/22/94 --40 ND ND ND 48 ND --ND GWPS = 0.3 ug/L ug/L 11/08/94 --40 ND ND ND ND ND --ND (No EPA MCL)ug/L 01/18/95 --40 ND ND ND ND ND --ND ug/L 04/23/96 --40 ND ND ND ND ND --ND ug/L 06/17/97 --40 ND ND ND 84 ND --ND ug/L 10/16/97 --40 ND ND ND ND ND --ND ug/L 04/21/98 --40 ND ND ND ND ND --ND ug/L 04/07/99 --40 ND 94 ND ND ND --ND ug/L 10/13/99 --40 ND 210 ND ND ND --ND ug/L 04/05/00 --40 ND 94 ND ND ND --ND ug/L 10/25/00 --40 ND 295 76 54 ND --ND ug/L 04/04/01 --40 ND 206 ND 91 ND --ND ug/L 04/08/02 --40 ND ND ND ND ND --ND ug/L 10/21/02 --40 ND 155 ND ND ND --ND ug/L 04/14/03 --40 ND ND ND ND ND --ND ug/L 10/01/03 --40 ND 56 ND 86 ND --ND ug/L 04/05/04 --40 ND ND ND ND 76 --ND ug/L 10/18/04 --40 ND 41 ND ND ND --ND ug/L 04/07/05 --40 ND 57 ND ND ND --ND ug/L 10/06/05 --40 ND 62 ND ND ND --ND ug/L 04/03/06 --40 ND 72 ND ND ND --ND ug/L 10/03/06 --40 ND ND ND ND ND --ND ug/L 04/05/07 --40 ND ND ND ND ND --ND ug/L 10/18/07 --25 3.2 J 21.6 J --ND 1.5 J --ND ug/L 04/29/08 --25 10.3 J 5.9 J ND ND ND --ND ug/L 10/23/08 --25 ND ND ND ND ND --ND ug/L 04/07/09 --25 3.9 J 3.6 J ND ND 0.7 J --ND ug/L 10/19/09 --25 5.12 J ND ND ND 2.26 J --ND ug/L 04/28/10 --25 4.42 J 2.65 J ND ND ND --ND ug/L 10/12/10 --25 4.33 J 2.25 J ND 1.54 J 2.73 J --ND ug/L 04/11/11 --25 4.13 J 1.88 J ND ND 1.89 J --ND ug/L 10/04/11 --25 4.16 J ND ND ND 8.31 J --ND ug/L 04/10/12 --25 4.34 J 1.99 J ND ND ND --ND ug/L 10/15/12 --25 3.95 J ND 6.47 J ND 2.37 J --ND ug/L 04/09/13 --25 3.88 J 5.41 J ND ND 1.89 J --ND ug/L 10/08/13 --25 4.50 J ND ND ND 2.92 J --ND ug/L 04/08/14 --25 5.11 J 3.68 J ND ND ND --ND ug/L 10/08/14 1.4 25 5.04 J 2.47 J ND ND 4.16 J --ND ug/L 04/08/15 1.4 25 3.99 J ND ND ND ND --ND ug/L 10/28/15 1.4 25 4.19 J ND ND ND 4.53 J ND ND ug/L 04/05/16 1.4 25 5.51 J 1.99 J ND ND ND ND ND ug/L 10/04/16 1.4 25 5.23 J 3.30 J ND ND ND ND ND ug/L 04/03/17 1.4 25 4.72 J ND ND ND ND ND ND Zinc ug/L 09/22/94 --50 ND 67 59 ND ND --ND NC 2L = 1000 ug/L ug/L 11/08/94 --50 ND ND ND ND ND --ND EPA MCL = 5000 ug/L*ug/L 01/18/95 --50 ND ND ND ND ND --ND ug/L 04/23/96 --50 ND ND ND ND ND --ND ug/L 06/17/97 --50 52 B 93 B 112 B 527 86 B --72 ug/L 10/16/97 --50 ND ND 127 227 ND --ND ug/L 04/21/98 --50 ND ND ND ND ND --ND ug/L 04/07/99 --50 ND ND ND ND ND --ND ug/L 10/13/99 --50 ND 144 55 135 ND --ND ug/L 04/05/00 --50 ND 64 ND 143 ND --ND ug/L 10/25/00 --50 ND 193 127 185 ND --ND ug/L 04/04/01 --50 ND 110 ND 284 ND --ND ug/L 04/08/02 --50 ND 226 ND 234 ND --ND ug/L 10/21/02 --50 ND 61 ND 72 ND --ND ug/L 04/14/03 --50 ND 111 ND ND ND --ND ug/L 10/01/03 --50 ND 53 53 323 ND --ND ug/L 04/05/04 --50 ND ND ND ND ND --ND ug/L 10/18/04 --50 ND 175 ND 94 51 --ND ug/L 04/07/05 --50 ND 113 88 97 ND --ND ug/L 10/06/05 --50 ND 132 74 146 ND --ND ug/L 04/03/06 --50 ND 113 ND ND 50 --ND ug/L 10/03/06 --50 ND ND ND ND ND --ND ug/L 04/05/07 --10 ND 14 ND ND ND --ND ug/L 10/18/07 --10 6.9 B 33 --8.7 J 6.8 B --1.5 J ug/L 04/29/08 --10 16.7 B 4.3 B 8.8 B 5.3 B 1.0 B --122 ug/L 10/23/08 --10 4.5 J ND ND ND ND --ND ug/L 04/07/09 --10 8.2 B 5.4 B 7.5 B ND ND --4.2 J ug/L 10/19/09 --10 9.69 J 7.40 J 8.17 J ND ND --ND ug/L 04/28/10 --10 6.46 J 5.76 J 10.4 ND ND --ND ug/L 10/12/10 --10 6.37 J 6.24 J 5.90 J 4.65 J ND --ND ug/L 04/11/11 --10 17.4 3.88 J 6.94 J 5.96 J 7.76 J --ND ug/L 10/04/11 --10 14.2 ND 11.6 ND ND --ND ug/L 04/10/12 --10 6.09 J 5.35 J 7.32 J ND ND --ND ug/L 10/15/12 --10 5.95 J 6.33 J 21.3 ND ND --ND ug/L 04/09/13 --10 7.25 J ND 6.94 J 4.09 J ND --ND ug/L 10/08/13 --10 4.17 J 5.51 J 9.56 J ND ND --ND ug/L 04/08/14 --10 6.49 J ND 6.39 J ND ND --ND ug/L 10/08/14 3.8 10 9.39 J 11.7 12.4 5.99 J ND --ND ug/L 04/08/15 3.8 10 4.49 J ND 9.80 J ND ND --ND ug/L 10/28/15 3.8 10 7.53 J ND 7.40 J ND ND 12.4 ND ug/L 04/05/16 4.4 10 ND ND 4.46 J ND ND 11.4 ND ug/L 10/04/16 4.4 10 8.61 J 8.84 J 7.75 J ND ND 12.8 ND ug/L 04/03/17 4.4 10 ND ND ND ND ND 10.3 ND Acetone ug/L 09/22/94 --100 ND ND ND ND ND --ND NC 2L = 6000 ug/L ug/L 11/08/94 --100 ND ND ND ND ND --ND (No EPA MCL)ug/L 01/18/95 --100 ND ND ND ND ND --ND ug/L 04/23/96 --100 ND ND ND ND ND --ND ug/L 06/17/97 --100 ND ND ND ND ND --ND ug/L 10/16/97 --100 ND ND ND ND ND --ND ug/L 04/21/98 --100 ND ND ND ND ND --ND ug/L 04/07/99 --100 ND ND ND ND ND --ND ug/L 10/13/99 --100 ND ND ND ND ND --ND ug/L 04/05/00 --100 ND ND ND ND ND --ND ug/L 10/25/00 --100 ND ND ND ND ND --ND ug/L 04/04/01 --100 ND ND ND ND ND --ND ug/L 04/08/02 --100 ND ND ND ND ND --ND ug/L 10/21/02 --100 ND ND ND ND ND --ND ug/L 04/14/03 --100 ND ND ND ND ND --ND ug/L 10/01/03 --100 ND ND ND ND ND --ND ug/L 04/05/04 --100 ND ND ND ND ND --ND ug/L 10/18/04 --100 ND ND ND ND ND --ND ug/L 04/07/05 --100 ND ND ND ND ND --ND ug/L 10/06/05 --100 ND ND ND ND ND --ND ug/L 04/03/06 --100 ND ND ND ND ND --ND ug/L 10/03/06 --100 ND ND ND ND ND --ND ug/L 04/05/07 --100 ND ND ND ND ND --ND ug/L 10/18/07 --100 ND 1.3 J --ND ND --ND ug/L 04/29/08 --100 ND ND ND ND ND --2.7 J ug/L 10/23/08 --100 ND 4.3 B 5.1 B 4.6 B 4.2 B --5.3 J ug/L 04/07/09 --100 ND ND ND ND ND --ND ug/L 10/19/09 --100 ND ND ND ND ND --8.2 J ug/L 04/28/10 --100 ND ND ND ND ND --ND ug/L 10/12/10 --100 ND ND ND ND ND --ND ug/L 04/11/11 --100 ND ND ND ND ND --ND ug/L 10/04/11 --100 ND ND ND ND ND ND ND ug/L 04/10/12 --100 ND ND ND ND ND --ND ug/L 10/15/12 --100 ND ND ND ND ND --ND ug/L 04/09/13 --100 ND ND ND ND ND --ND ug/L 10/08/13 --100 ND ND ND ND ND --ND ug/L 04/08/14 --100 ND ND ND ND ND --ND ug/L 10/08/14 1.2 100 ND ND ND ND ND --ND ug/L 04/08/15 1.2 100 ND ND ND ND ND --ND ug/L 10/28/15 1.2 100 ND ND ND ND ND ND ND ug/L 04/05/16 1.2 100 ND ND ND ND ND ND ND ug/L 10/04/16 10 100 ND ND ND ND ND ND ND ug/L 04/03/17 10 100 ND ND ND ND ND ND ND June 2017 7 of 13 141122017.101 0739612716.102 G:\PROJECTS\Waste Management\Randolph County\141122017 - Randolph Co LF - NC\Phase 101 - 1st SA WQM Event\600 CALCULATIONS\Tables April 2017.xlsx MW-5 MW-6 MW-7 MW-8 MW-9 MW-10S Summary of Historical Groundwater Monitoring Results TABLE 4 Closed Randolph County Landfill, Permit No. 76-01 Upgradient WellSWS Reporting Limit Detected Monitoring Constituent/Parameter Units Date Blanks Method Detection Limit Downgradient Wells Benzene ug/L 09/22/94 --5 ND ND ND ND ND --ND NC 2L = 1 ug/L ug/L 11/08/94 --5 ND ND ND ND ND --ND EPA MCL = 5 ug/L ug/L 01/18/95 --5 ND ND ND ND ND --ND ug/L 04/23/96 --5 ND ND ND ND ND --ND ug/L 06/17/97 --5 ND ND ND ND ND --ND ug/L 10/16/97 --5 ND ND ND ND ND --ND ug/L 04/21/98 --5 ND ND ND ND ND --ND ug/L 04/07/99 --5 ND ND ND ND ND --ND ug/L 10/13/99 --5 ND ND ND ND ND --ND ug/L 04/05/00 --5 ND ND ND ND ND --ND ug/L 10/25/00 --5 ND ND ND ND ND --ND ug/L 04/04/01 --5 ND ND ND ND ND --ND ug/L 04/08/02 --5 ND ND ND ND ND --ND ug/L 10/21/02 --5 ND ND ND ND ND --ND ug/L 04/14/03 --5 ND ND ND ND ND --ND ug/L 10/01/03 --5 ND ND ND ND ND --ND ug/L 04/05/04 --5 ND ND ND ND ND --ND ug/L 10/18/04 --5 ND ND ND ND ND --ND ug/L 04/07/05 --5 ND ND ---------- ug/L 10/06/05 --5 ND ND ND ND ND --ND ug/L 04/03/06 --5 ND ND ND ND ND --ND ug/L 10/03/06 --5 ND ND ND ND ND --ND ug/L 04/05/07 --3 ND ND ND ND ND --ND ug/L 10/18/07 --1 ND ND --ND ND --ND ug/L 04/29/08 --1 ND ND 0.78 J ND ND --ND ug/L 10/23/08 --1 ND ND 1.8 ND ND --ND ug/L 04/07/09 --1 ND ND ND ND ND --ND ug/L 10/19/09 --1 ND ND 1.9 ND ND --ND ug/L 04/28/10 --1 ND ND 1.3 ND ND --ND ug/L 10/12/10 --1 ND ND 2.0 ND ND --ND ug/L 04/11/11 --1 ND ND 1.3 ND ND --ND ug/L 10/04/11 --1 ND ND 2.0 ND ND ND ND ug/L 04/10/12 --1 ND ND 1.3 ND ND --ND ug/L 10/15/12 --1 ND ND 1.9 ND ND --ND ug/L 04/09/13 --1 ND ND 1.3 ND ND --ND ug/L 10/08/13 --1 ND ND 1.4 ND ND --ND ug/L 04/08/14 --1 ND ND 1.1 ND ND --ND ug/L 10/08/14 0.15 1 ND ND 1.4 ND ND --ND ug/L 04/08/15 0.15 1 ND ND 0.58 J ND ND --ND ug/L 10/28/15 0.15 1 ND ND 1.4 ND ND ND ND ug/L 04/05/16 0.15 1 ND ND 0.87 J ND ND ND ND ug/L 10/04/16 0.15 1 ND ND 1.4 ND ND ND ND ug/L 04/03/17 0.15 1 ND ND 1.4 ND ND ND ND Chlorobenzene ug/L 09/22/94 --5 ND ND ND ND ND --ND NC 2L = 50 ug/L ug/L 11/08/94 --5 ND ND ND ND ND --ND EPA MCL = 100 ug/L ug/L 01/18/95 --5 ND ND ND ND ND --ND ug/L 04/23/96 --5 ND ND ND ND ND --ND ug/L 06/17/97 --5 ND ND ND ND ND --ND ug/L 10/16/97 --5 ND ND ND ND ND --ND ug/L 04/21/98 --5 ND ND ND ND ND --ND ug/L 04/07/99 --5 ND ND ND ND ND --ND ug/L 10/13/99 --5 ND ND ND ND ND --ND ug/L 04/05/00 --5 ND ND ND ND ND --ND ug/L 10/25/00 --5 ND ND ND ND ND --ND ug/L 04/04/01 --5 ND ND ND ND ND --ND ug/L 04/08/02 --5 ND ND ND ND ND --ND ug/L 10/21/02 --5 ND ND ND ND ND --ND ug/L 04/14/03 --5 ND ND ND ND ND --ND ug/L 10/01/03 --5 ND ND ND ND ND --ND ug/L 04/05/04 --5 ND ND ND ND ND --ND ug/L 10/18/04 --5 ND ND ND ND ND --ND ug/L 04/07/05 --5 ND ND ND ND ND --ND ug/L 10/06/05 --5 ND ND ND ND ND --ND ug/L 04/03/06 --5 ND ND ND ND ND --ND ug/L 10/03/06 --5 ND ND ND ND ND --ND ug/L 04/05/07 --3 ND ND ND ND ND --ND ug/L 10/18/07 --3 ND ND --ND ND --ND ug/L 04/29/08 --3 ND ND 1.0 J ND ND --ND ug/L 10/23/08 --3 ND ND 2.5 J ND ND --ND ug/L 04/07/09 --3 ND ND 0.84 J ND ND --ND ug/L 10/19/09 --3 ND ND 2.7 J ND ND --ND ug/L 04/28/10 --3 ND ND 1.3 J ND ND --ND ug/L 10/12/10 --3 ND ND 2.6 J ND ND --ND ug/L 04/11/11 --3 ND ND 1.5 J ND ND --ND ug/L 10/04/11 --3 ND ND 2.7 J ND ND ND ND ug/L 04/10/12 --3 ND ND 1.3 J ND ND --ND ug/L 10/15/12 --3 ND ND 2.6 J ND ND --ND ug/L 04/09/13 --3 ND ND 1.5 J ND ND --ND ug/L 10/08/13 --3 ND ND 1.7 J ND ND --ND ug/L 04/08/14 --3 ND ND ND ND ND --ND ug/L 10/08/14 0.17 3 ND ND 1.4 J ND ND --ND ug/L 04/08/15 0.17 3 ND ND 0.64 J ND ND --ND ug/L 10/28/15 0.17 3 ND 0.76 J 1.7 J ND 0.62 J ND ND ug/L 04/05/16 0.17 3 ND ND 0.85 J ND ND ND ND ug/L 10/04/16 0.17 3 ND ND 2.1 J ND ND ND ND ug/L 04/03/17 0.17 3 ND ND 1.7 J ND ND ND ND Chloroethane ug/L 09/22/94 --10 ND ND ND ND ND --ND GWPS = 3000 ug/L ug/L 11/08/94 --10 ND ND ND ND ND --ND (No EPA MCL)ug/L 01/18/95 --10 ND ND ND ND ND --ND ug/L 04/23/96 --10 ND ND 38 ND ND --ND ug/L 06/17/97 --10 ND ND ND ND ND --ND ug/L 10/16/97 --10 ND ND ND ND ND --ND ug/L 04/21/98 --10 ND ND ND ND ND --ND ug/L 04/07/99 --10 ND ND ND ND ND --ND ug/L 10/13/99 --10 ND ND ND ND ND --ND ug/L 04/05/00 --10 ND ND ND ND ND --ND ug/L 10/25/00 --10 ND ND ND ND ND --ND ug/L 04/04/01 --10 ND ND 15 ND ND --ND ug/L 04/04/02 --10 ND ND ND ND ND --ND ug/L 10/21/02 --10 ND ND 10.2 ND ND --ND ug/L 04/14/03 --10 ND ND ND ND ND --ND ug/L 10/01/03 --10 ND ND ND ND ND --ND ug/L 04/05/04 --10 ND ND ND ND ND --ND ug/L 10/18/04 --10 ND ND ND ND ND --ND ug/L 04/07/05 --10 ND ND --------ND ug/L 10/06/05 --10 ND ND ND ND ND --ND ug/L 04/03/06 --10 ND ND ND ND ND --ND ug/L 10/03/06 --10 ND ND ND ND ND --ND ug/L 04/05/07 --10 ND ND ND ND ND --ND ug/L 10/18/07 --10 ND ND --ND 0.4 J --ND ug/L 04/29/08 --10 ND ND 3.1 J ND ND --ND ug/L 10/23/08 --10 ND ND 7.2 J ND ND --ND ug/L 04/07/09 --10 ND ND 3.1 J ND 0.91 J --ND ug/L 10/19/09 --10 ND ND 3.4 J ND ND --ND ug/L 04/28/10 --10 ND 0.75 J 3.4 J ND ND --ND ug/L 10/12/10 --10 ND ND 5.3 J ND ND --ND ug/L 04/11/11 --10 ND ND ND ND ND --ND ug/L 10/04/11 --10 ND ND 7.3 J ND ND 3.4 J ND ug/L 04/10/12 --10 ND ND 1.5 J ND ND --ND ug/L 10/15/12 --10 ND ND 3.5 J ND ND --ND ug/L 04/09/13 --10 ND ND ND ND ND --ND ug/L 10/08/13 --10 ND ND 3.7 J ND ND --ND ug/L 04/08/14 --10 ND ND 3.8 J ND ND --ND ug/L 10/08/14 0.23 10 ND ND 2.5 J ND ND --ND ug/L 04/08/15 0.23 10 ND ND ND ND ND --ND ug/L 10/28/15 0.23 10 ND ND 4.1 J ND ND 3.8 J ND ug/L 04/05/16 0.23 10 ND ND 2.4 J ND ND 1.5 J ND ug/L 10/04/16 0.23 10 ND ND 2.7 J ND ND 1.2 J ND ug/L 04/03/17 0.23 10 ND ND 3.6 J ND ND 2.9 J ND June 2017 8 of 13 141122017.101 0739612716.102 G:\PROJECTS\Waste Management\Randolph County\141122017 - Randolph Co LF - NC\Phase 101 - 1st SA WQM Event\600 CALCULATIONS\Tables April 2017.xlsx MW-5 MW-6 MW-7 MW-8 MW-9 MW-10S Summary of Historical Groundwater Monitoring Results TABLE 4 Closed Randolph County Landfill, Permit No. 76-01 Upgradient WellSWS Reporting Limit Detected Monitoring Constituent/Parameter Units Date Blanks Method Detection Limit Downgradient Wells 1,4-Dichlorobenzene ug/L 09/22/94 --5 ND ND ND ND ND --ND NC 2L = 6 ug/L ug/L 11/08/94 --5 ND ND ND ND ND --ND EPA MCL = 75 ug/L ug/L 01/18/95 --5 ND ND ND ND ND --ND ug/L 04/23/96 --5 ND ND ND ND ND --ND ug/L 06/17/97 --5 ND ND ND ND ND --ND ug/L 10/16/97 --5 ND ND ND ND ND --ND ug/L 04/21/98 --5 ND ND ND ND ND --ND ug/L 04/07/99 --5 ND ND ND ND ND --ND ug/L 10/13/99 --5 ND ND ND ND ND --ND ug/L 04/05/00 --5 ND ND ND ND ND --ND ug/L 10/25/00 --5 ND ND ND ND ND --ND ug/L 04/04/01 --5 ND ND ND ND ND --ND ug/L 04/04/02 --5 ND ND ND ND ND --ND ug/L 10/21/02 --5 ND ND ND ND ND --ND ug/L 04/14/03 --5 ND ND ND ND ND --ND ug/L 10/01/03 --5 ND ND ND ND ND --ND ug/L 04/05/04 --5 ND ND ND ND ND --ND ug/L 10/18/04 --5 ND ND ND ND ND --ND ug/L 04/07/05 --5 ND ND ND ND ND --ND ug/L 10/06/05 --5 ND ND ND ND ND --ND ug/L 04/03/06 --5 ND ND ND ND ND --ND ug/L 10/03/06 --5 ND ND ND ND ND --ND ug/L 04/05/07 --3 ND ND ND ND ND --ND ug/L 10/18/07 --1 ND ND --ND ND --ND ug/L 04/29/08 --1 ND ND ND ND ND --ND ug/L 10/23/08 --1 ND ND ND ND ND --ND ug/L 04/07/09 --1 ND ND ND ND ND --ND ug/L 10/19/09 --1 ND ND ND ND ND --ND ug/L 04/28/10 --1 ND ND 0.67 J ND ND --ND ug/L 10/12/10 --1 ND ND ND ND ND --ND ug/L 04/11/11 --1 ND ND ND ND ND --ND ug/L 10/04/11 --1 ND ND 1.0 ND ND ND ND ug/L 04/10/12 --1 ND ND ND ND ND --ND ug/L 10/15/12 --1 ND ND ND ND ND --ND ug/L 04/09/13 --1 ND ND 0.84 J ND ND --ND ug/L 10/08/13 --1 ND ND 0.67 J ND ND --ND ug/L 04/08/14 --1 ND ND ND ND ND --ND ug/L 10/08/14 0.19 1 ND ND ND ND ND --ND ug/L 04/08/15 0.19 1 ND ND ND ND ND --ND ug/L 10/28/15 0.19 1 ND ND 0.57 J ND ND 0.67 J ND ug/L 04/05/16 0.19 1 ND ND ND ND ND ND ND ug/L 10/04/16 0.19 1 ND ND ND ND ND ND ND ug/L 04/03/17 0.19 1 ND ND 0.55 J ND ND 0.77 J ND Dichlorodifluoromethane ug/L 09/22/94 --5 ND ND ND ND ND --ND NC 2L = 1000 ug/L ug/L 11/08/94 --5 ND ND ND ND ND --ND (No EPA MCL)ug/L 01/18/95 --5 ND ND ND ND ND --ND ug/L 04/23/96 --5 ND ND 38 ND ND --ND ug/L 06/17/97 --5 ND ND ND ND ND --ND ug/L 10/16/97 --5 ND ND ND -------- ug/L 04/21/98 --5 ND ND ND ND ND --ND ug/L 04/07/99 --5 ND ND ND ND ND --ND ug/L 10/13/99 --5 ND ND ND ND ND --ND ug/L 04/05/00 --5 ND ND 5.8 ND ND --ND ug/L 10/25/00 --5 ND ND 8.8 ND ND --ND ug/L 04/04/01 --5 ND ND 8.1 ND ND --ND ug/L 04/08/02 --5 ND ND 7.2 ND ND --ND ug/L 10/21/02 --5 ND ND ND ND ND --ND ug/L 04/14/03 --5 ND ND 6.2 ND ND --ND ug/L 10/01/03 --5 ND ND ND ND ND --ND ug/L 04/05/04 --5 ND ND 7.1 ND ND --ND ug/L 10/18/04 --5 ND ND ND ND ND --ND ug/L 04/07/05 --5 ND ND ND ND ND --ND ug/L 10/06/05 --5 ND ND 8.1 ND ND --ND ug/L 04/03/06 --5 ND ND ND ND ND --ND ug/L 10/03/06 --5 ND ND ND ND ND --ND ug/L 04/05/07 --5 ND ND ND ND ND --ND ug/L 10/18/07 --5 ND ND --0.8 J ND --ND ug/L 04/29/08 --5 ND ND 1.2 J ND ND --ND ug/L 04/07/09 --5 ND ND 1.8 J 0.71 J ND --ND ug/L 10/19/09 --5 ND ND 2.0 J 0.58 J ND --ND ug/L 04/28/10 --5 ND ND 1.1 J ND ND --ND ug/L 04/11/11 --5 ND ND 0.63 J ND ND 4.0 J ND ug/L 04/10/12 --5 ND ND 0.52 J ND ND --ND ug/L 04/09/13 --5 ND ND ND ND ND --ND ug/L 10/08/13 --5 ND ND ND ND ND --ND ug/L 04/08/14 --5 ND ND ND ND ND --ND ug/L 04/08/15 0.20 5 ND ND ND ND ND --ND ug/L 10/28/15 0.20 5 ND ND ND 0.48 J ND 1.8 J ND ug/L 04/05/16 0.20 5 ND ND ND ND ND 1.5 J ND ug/L 10/04/16 0.20 5 ND ND ND ND ND 1.2 J ND ug/L 04/03/17 0.20 5 ND ND ND ND ND 1.8 J ND 1,1-Dichloroethane ug/L 09/22/94 --5 ND ND ND ND ND --ND NC 2L = 6 ug/L ug/L 11/08/94 --5 ND ND 17 ND ND --ND (No EPA MCL)ug/L 01/18/95 --5 ND ND 13 ND ND --ND ug/L 04/23/96 --5 ND ND 21 ND ND --ND ug/L 06/17/97 --5 ND ND ND ND ND --ND ug/L 10/16/97 --5 ND ND 13 ND ND --ND ug/L 04/21/98 --5 ND ND 13 ND ND --ND ug/L 04/07/99 --5 ND ND 17 ND ND --ND ug/L 10/13/99 --5 ND ND 20 ND ND --ND ug/L 04/05/00 --5 ND ND 26 ND ND --ND ug/L 10/25/00 --5 ND ND 31 ND ND --ND ug/L 04/04/01 --5 ND ND 39 ND ND --ND ug/L 04/08/02 --5 ND ND 15.6 ND ND --ND ug/L 10/21/02 --5 ND ND 35.6 ND ND --ND ug/L 04/14/03 --5 ND ND 12.8 ND ND --ND ug/L 10/01/03 --5 ND ND 6.1 ND ND --ND ug/L 04/05/04 --5 ND ND 13.5 ND ND --ND ug/L 10/18/04 --5 ND ND ND ND ND --ND ug/L 04/07/05 --5 ND ND ---------- ug/L 10/06/05 --5 ND ND 16.4 ND ND --ND ug/L 04/03/06 --5 ND ND 5.4 ND ND --ND ug/L 10/03/06 --5 ND ND 12 ND ND --ND ug/L 04/05/07 --5 ND ND 6 ND ND --ND ug/L 10/18/07 --5 ND ND --2.2 J 1.2 J --ND ug/L 04/29/08 --5 ND ND 7.8 1.7 J 2.5 J --ND ug/L 10/23/08 --5 ND ND 15 2.6 J 1.4 J --ND ug/L 04/07/09 --5 ND ND 6.8 2.5 J 3.0 J --ND ug/L 10/19/09 --5 ND ND 11 2.6 J 1.1 J --ND ug/L 04/28/10 --5 ND 1.1 J 6.9 2.4 J 2.7 J --ND ug/L 10/12/10 --5 ND 0.59 J 12 3.9 J 1.5 J --ND ug/L 04/11/11 --5 ND ND 5.8 3.7 J 1.7 J --ND ug/L 10/04/11 --5 ND ND 13 5.6 1.9 J 26 ND ug/L 04/10/12 --5 ND ND 5.1 4.3 J 2.5 J --ND ug/L 10/15/12 --5 ND ND 6.6 5.7 0.88 J --ND ug/L 04/09/13 --5 ND ND 4.3 J 6.9 1.0 J --ND ug/L 10/08/13 --5 ND ND 4.0 J 5.1 1.1 J --ND ug/L 04/08/14 --5 ND ND 3.0 J 6.6 1.3 J --ND ug/L 10/08/14 0.13 5 ND 0.41 J 3.4 J 9.8 0.80 J --ND ug/L 04/08/15 0.13 5 ND 0.54 J 1.4 J 3.2 J ND --ND ug/L 10/28/15 0.13 5 ND ND 3.1 J 11 0.90 J 59 ND ug/L 04/05/16 0.13 5 ND ND 2.0 J 6.8 1.4 J 23 ND ug/L 10/04/16 0.13 5 ND ND 2.3 J 10 0.81 J 21 ND ug/L 04/03/17 0.13 5 ND 0.46 J 2.1 J 10 0.86 J 36 ND June 2017 9 of 13 141122017.101 0739612716.102 G:\PROJECTS\Waste Management\Randolph County\141122017 - Randolph Co LF - NC\Phase 101 - 1st SA WQM Event\600 CALCULATIONS\Tables April 2017.xlsx MW-5 MW-6 MW-7 MW-8 MW-9 MW-10S Summary of Historical Groundwater Monitoring Results TABLE 4 Closed Randolph County Landfill, Permit No. 76-01 Upgradient WellSWS Reporting Limit Detected Monitoring Constituent/Parameter Units Date Blanks Method Detection Limit Downgradient Wells 1,1-Dichloroethene ug/L 09/22/94 --5 ND ND ND ND ND --ND NC 2L = 7 ug/L ug/L 11/08/94 --5 ND ND ND ND ND --ND EPA MCL = 7 ug/L ug/L 01/18/95 --5 ND ND ND ND ND --ND ug/L 04/23/96 --5 ND ND ND ND ND --ND ug/L 06/17/97 --5 ND ND ND ND ND --ND ug/L 10/16/97 --5 ND ND ND ND ND --ND ug/L 04/21/98 --5 ND ND ND ND ND --ND ug/L 04/07/99 --5 ND ND ND ND ND --ND ug/L 10/13/99 --5 ND ND ND ND ND --ND ug/L 04/05/00 --5 ND ND ND ND ND --ND ug/L 10/25/00 --5 ND ND ND ND ND --ND ug/L 04/04/01 --5 ND ND ND ND ND --ND ug/L 04/08/02 --5 ND ND ND ND ND --ND ug/L 10/21/02 --5 ND ND ND ND ND --ND ug/L 04/14/03 --5 ND ND ND ND ND --ND ug/L 10/01/03 --5 ND ND ND ND ND --ND ug/L 04/05/04 --5 ND ND ND ND ND --ND ug/L 10/18/04 --5 ND ND ND ND ND --ND ug/L 04/07/05 --5 ND ND ND ND ND --ND ug/L 10/06/05 --5 ND ND ND ND ND --ND ug/L 10/03/06 --5 ND ND 11.2 ND ND --ND ug/L 10/18/07 --5 ND ND --ND ND --ND ug/L 04/29/08 --5 ND ND ND ND ND --ND ug/L 10/23/08 --5 ND ND ND ND ND --ND ug/L 04/07/09 --5 ND ND ND ND ND --ND ug/L 10/19/09 --5 ND ND ND ND ND --ND ug/L 04/28/10 --5 ND ND ND ND ND --ND ug/L 10/12/10 --5 ND ND 0.42 J ND ND --ND ug/L 04/11/11 --5 ND ND ND ND ND --ND ug/L 10/04/11 --5 ND ND ND ND ND ND ND ug/L 04/10/12 --5 ND ND ND ND ND --ND ug/L 10/15/12 --5 ND ND ND ND ND --ND ug/L 04/09/13 --5 ND ND ND ND ND --ND ug/L 10/08/13 --5 ND ND ND ND ND --ND ug/L 04/08/14 --5 ND ND ND ND ND --ND ug/L 10/08/14 0.21 5 ND ND ND ND ND --ND ug/L 04/08/15 0.21 5 ND ND ND ND ND --ND ug/L 10/28/15 0.21 5 ND ND ND ND ND 0.82 J ND ug/L 04/05/16 0.21 5 ND ND ND ND ND ND ND ug/L 10/04/16 0.21 5 ND ND ND ND ND ND ND ug/L 04/03/17 0.21 5 ND ND ND ND ND ND ND cis-1,2-Dichloroethene ug/L 09/22/94 --5 ND ND ND ND ND --ND NC 2L = 70 ug/L ug/L 11/08/94 --5 ND ND ND ND ND --ND EPA MCL = 70 ug/L ug/L 01/18/95 --5 ND ND ND ND ND --ND ug/L 04/23/96 --5 ND ND ND ND ND --ND ug/L 06/17/97 --5 ND ND ND ND ND --ND ug/L 10/16/97 --5 ND ND ND ND ND --ND ug/L 04/21/98 --5 ND ND ND ND ND --ND ug/L 04/07/99 --5 ND ND ND ND ND --ND ug/L 10/13/99 --5 ND ND ND ND ND --ND ug/L 04/05/00 --5 ND ND ND ND ND --ND ug/L 10/25/00 --5 ND ND ND ND ND --ND ug/L 04/04/01 --5 ND ND ND ND ND --ND ug/L 04/08/02 --5 ND ND ND ND ND --ND ug/L 10/21/02 --5 ND ND ND ND ND --ND ug/L 04/14/03 --5 ND ND ND ND ND --ND ug/L 10/01/03 --5 ND ND ND ND ND --ND ug/L 04/05/04 --5 ND ND ND ND ND --ND ug/L 10/18/04 --5 ND ND ND ND ND --ND ug/L 04/07/05 --5 ND ND ---------- ug/L 10/06/05 --5 ND ND ND ND ND --ND ug/L 04/03/06 --5 ND ND ND ND ND --ND ug/L 10/03/06 --5 ND ND ND ND ND --ND ug/L 04/05/07 --5 ND ND ND ND ND --ND ug/L 10/18/07 --5 ND ND --ND ND --ND ug/L 04/29/08 --5 ND ND 0.63 J ND 1.8 J --ND ug/L 10/23/08 --5 ND ND 1.4 J 0.40 J 0.80 J --ND ug/L 04/07/09 --5 ND ND 0.49 J ND 1.8 J --ND ug/L 10/19/09 --5 ND ND 1.6 J 0.48 J 0.73 J --ND ug/L 04/28/10 --5 ND ND 1.1 J 0.49 J 2.5 J --ND ug/L 10/12/10 --5 ND ND 1.9 J 0.69 J 0.90 J --ND ug/L 04/11/11 --5 ND ND 1.3 J 0.83 J 1.2 J --ND ug/L 10/04/11 --5 ND ND 1.8 J 0.84 J 0.86 J 2.6 J ND ug/L 04/10/12 --5 ND ND 1.2 J 0.85 J 3.3 J --ND ug/L 10/15/12 --5 ND ND 1.9 J 1.2 J 0.56 J --ND ug/L 04/09/13 --5 ND ND 1.5 J 0.91 J ND --ND ug/L 10/08/13 --5 ND ND 1.1 J 0.95 J 0.69 J --ND ug/L 04/08/14 --5 ND ND 0.97 J 1.2 J 1.5 J --ND ug/L 10/08/14 0.15 5 ND ND 1.2 J 1.8 J 0.46 J --ND ug/L 04/08/15 0.15 5 ND ND 0.41 J 0.60 J ND --ND ug/L 10/28/15 0.15 5 ND ND 1.1 J 2.2 J 0.53 J 6.3 ND ug/L 04/05/16 0.15 5 ND ND 0.75 J 1.1 J 2.2 J 2.3 J ND ug/L 10/04/16 0.15 5 ND ND 1.0 J 2.3 J 0.57 J 2.8 J ND ug/L 04/03/17 0.15 5 ND ND 0.97 J 1.7 J 0.50 J 4.2 J ND Chloromethane ug/L 09/22/94 --10 ND ND ND ND ND --ND GWPS = 3 ug/L ug/L 11/08/94 --10 ND ND ND ND ND --ND (No EPA MCL)ug/L 01/18/95 --10 ND ND ND ND ND --ND ug/L 04/23/96 --10 ND ND ND ND ND --ND ug/L 06/17/97 --10 ND ND ND ND ND --ND ug/L 10/16/97 --10 ND ND ND ND ND --ND ug/L 04/21/98 --10 ND ND ND ND ND --ND ug/L 04/07/99 --10 ND ND ND ND ND --ND ug/L 10/13/99 --10 ND ND ND ND ND --ND ug/L 04/05/00 --10 ND ND ND ND ND --ND ug/L 10/25/00 --10 ND ND ND ND ND --ND ug/L 04/04/01 --10 ND ND ND ND ND --ND ug/L 04/08/02 --10 ND ND ND ND ND --ND ug/L 10/21/02 --10 ND ND ND ND ND --ND ug/L 04/14/03 --10 ND ND ND ND ND --ND ug/L 10/01/03 --10 ND ND ND ND ND --ND ug/L 04/05/04 --10 ND ND ND ND ND --ND ug/L 10/18/04 --10 ND ND ND ND ND --ND ug/L 04/07/05 --10 ND ND ND ND ND --ND ug/L 10/06/05 --10 ND ND ND ND ND --ND ug/L 04/03/06 --10 ND ND ND ND ND --ND ug/L 10/03/06 --10 ND ND ND ND ND --ND ug/L 04/05/07 --5 ND ND ND ND ND --ND ug/L 10/18/07 --1 0.5 J 0.5 J --0.4 J 0.5 J --ND ug/L 04/29/08 --1 ND ND ND ND ND --ND ug/L 10/23/08 --1 ND ND ND ND ND --ND ug/L 04/07/09 --1 ND ND ND ND ND --ND ug/L 10/19/09 --1 ND ND ND ND ND --ND ug/L 04/28/10 --1 ND ND ND ND ND --ND ug/L 10/12/10 --1 ND 0.51 B 0.94 B 0.51 B 0.53 B --0.49 J ug/L 04/11/11 --1 ND ND ND ND ND --ND ug/L 10/04/11 --1 ND ND ND ND ND ND ND ug/L 04/10/12 --1 ND ND ND ND ND --ND ug/L 10/15/12 --1 ND ND ND ND ND --ND ug/L 04/09/13 --1 ND ND ND ND ND --ND ug/L 10/08/13 --1 ND ND ND ND ND --ND ug/L 04/08/14 --1 ND ND ND ND ND --ND ug/L 10/08/14 0.13 1 ND ND ND ND ND --ND ug/L 04/08/15 0.13 1 ND ND ND ND ND --ND ug/L 10/28/15 0.13 1 ND ND ND ND ND ND ND ug/L 04/05/16 0.13 1 ND ND ND ND ND ND ND ug/L 10/04/16 0.13 1 ND ND ND ND ND ND ND ug/L 04/03/17 0.13 1 ND ND ND ND ND ND ND June 2017 10 of 13 141122017.101 0739612716.102 G:\PROJECTS\Waste Management\Randolph County\141122017 - Randolph Co LF - NC\Phase 101 - 1st SA WQM Event\600 CALCULATIONS\Tables April 2017.xlsx MW-5 MW-6 MW-7 MW-8 MW-9 MW-10S Summary of Historical Groundwater Monitoring Results TABLE 4 Closed Randolph County Landfill, Permit No. 76-01 Upgradient WellSWS Reporting Limit Detected Monitoring Constituent/Parameter Units Date Blanks Method Detection Limit Downgradient Wells Methylene chloride ug/L 09/22/94 --10 ND ND ND ND ND --ND NC 2L = 5 ug/L ug/L 11/08/94 --10 ND ND ND ND ND --ND EPA MCL = 5 ug/L ug/L 01/18/95 --10 ND ND ND ND ND --ND ug/L 04/23/96 --10 ND ND ND ND ND --ND ug/L 06/17/97 --10 ND ND ND ND ND --ND ug/L 10/16/97 --10 ND ND ND ND ND --ND ug/L 04/21/98 --10 ND ND ND ND ND --ND ug/L 04/07/99 --10 ND ND ND ND ND --ND ug/L 10/13/99 --10 ND ND ND ND ND --ND ug/L 04/05/00 --10 ND ND 35 ND ND --ND ug/L 10/25/00 --10 ND ND 44 ND ND --ND ug/L 04/04/01 --10 ND ND 49 ND ND --ND ug/L 04/08/02 --10 ND ND 18.9 ND ND --ND ug/L 10/21/02 --10 ND ND 33.6 ND ND --ND ug/L 04/14/03 --10 ND ND 17.4 ND ND --ND ug/L 10/01/03 --10 ND ND ND ND ND --ND ug/L 04/05/04 --10 ND ND 14.6 ND ND --ND ug/L 10/18/04 --10 ND ND ND ND ND --ND ug/L 04/07/05 --10 ND ND ND ND ND --ND ug/L 10/06/05 --10 ND ND 10.4 ND ND --ND ug/L 04/03/06 --10 ND ND ND ND ND --ND ug/L 10/03/06 --10 ND ND ND ND ND --ND ug/L 04/05/07 --5 ND ND ND ND ND --ND ug/L 10/18/07 --1 ND ND --0.3 B ND --0.2 J ug/L 04/29/08 --1 ND ND 7.0 ND ND --ND ug/L 10/23/08 --1 ND ND 11 ND ND --ND ug/L 04/07/09 --1 ND ND 5.4 ND ND --ND ug/L 10/19/09 --1 ND ND 8.5 ND ND --ND ug/L 04/28/10 --1 ND ND 7.5 ND ND --ND ug/L 10/12/10 --1 ND ND 12 ND ND --ND ug/L 04/11/11 --1 ND ND 4.4 0.45 J ND --ND ug/L 10/04/11 --1 ND ND 7.4 0.75 J ND 0.72 J ND ug/L 04/10/12 --1 ND ND 3.8 0.34 J ND --ND ug/L 10/15/12 --1 ND ND 4.6 0.47 J ND --ND ug/L 04/09/13 --1 ND ND 1.8 ND ND --ND ug/L 10/08/13 --1 ND ND 0.40 J ND ND --ND ug/L 04/08/14 --1 ND ND 0.97 J ND ND --ND ug/L 10/08/14 0.23 1 ND ND ND ND ND --ND ug/L 04/08/15 0.23 1 ND ND ND ND ND --ND ug/L 10/28/15 0.23 1 ND ND ND ND ND 0.47 J ND ug/L 04/05/16 0.23 1 ND ND 1.2 ND ND 0.43 J ND ug/L 10/04/16 0.23 1 ND ND ND ND ND ND ND ug/L 04/03/17 0.23 1 ND ND ND ND ND ND ND 2-Butanone ug/L 09/22/94 --100 ND ND ND ND ND --ND NC 2L = 4000 ug/L ug/L 11/08/94 --100 ND ND ND ND ND --ND (No EPA MCL)ug/L 01/18/95 --100 ND ND ND ND ND --ND ug/L 04/23/96 --100 ND ND ND ND ND --ND ug/L 06/17/97 --100 ND ND ND ND ND --ND ug/L 10/16/97 --100 ND ND ND ND ND --ND ug/L 04/21/98 --100 ND ND ND ND ND --ND ug/L 04/07/99 --100 ND ND ND ND ND --ND ug/L 10/13/99 --100 ND ND ND ND ND --ND ug/L 04/05/00 --100 ND ND ND ND ND --ND ug/L 10/25/00 --100 ND ND ND ND ND --ND ug/L 04/04/01 --100 ND ND ND ND ND --ND ug/L 04/08/02 --100 ND ND ND ND ND --ND ug/L 10/21/02 --100 ND ND ND ND ND --ND ug/L 04/14/03 --100 ND ND ND ND ND --ND ug/L 10/01/03 --100 ND ND ND ND ND --ND ug/L 04/05/04 --100 ND ND ND ND ND --ND ug/L 10/18/04 --100 ND ND ND ND ND --ND ug/L 04/07/05 --100 ND ND ND ND ND --ND ug/L 10/06/05 --100 ND ND ND ND ND --ND ug/L 04/03/06 --100 ND ND ND ND ND --ND ug/L 10/03/06 --100 ND ND ND ND ND --ND ug/L 04/05/07 --100 ND ND ND ND ND --ND ug/L 10/18/07 --100 ND ND --ND ND --ND ug/L 04/29/08 --100 ND ND ND ND ND --ND ug/L 10/23/08 --100 ND ND ND ND ND --ND ug/L 04/07/09 --100 ND ND ND ND ND --ND ug/L 10/19/09 --100 ND ND ND ND ND --ND ug/L 04/28/10 --100 ND ND ND ND ND --ND ug/L 10/12/10 --100 ND ND ND ND ND --ND ug/L 04/11/11 --100 ND ND ND ND ND --ND ug/L 10/04/11 --100 ND ND ND ND ND ND ND ug/L 04/10/12 --100 ND ND ND ND ND --ND ug/L 10/15/12 --100 ND ND ND ND ND --ND ug/L 04/09/13 --100 ND ND ND ND ND --ND ug/L 10/08/13 --100 ND ND ND ND ND --ND ug/L 04/08/14 --100 ND ND ND ND ND --ND ug/L 10/08/14 1.3 100 ND ND ND ND ND --ND ug/L 04/08/15 1.3 100 ND 4.0 J ND ND ND --ND ug/L 10/28/15 1.3 100 ND ND ND ND ND ND ND ug/L 04/05/16 1.3 100 ND ND ND ND ND ND ND ug/L 10/04/16 1.3 100 ND ND ND ND ND ND ND ug/L 04/03/17 1.3 100 ND ND ND ND ND ND ND 4-Methyl-2-pentanone ug/L 09/22/94 --50 ND ND ND ND ND --ND GWPS = 560 ug/L ug/L 11/08/94 --50 ND ND ND ND ND --ND EPA MCL = 5 ug/L ug/L 01/18/95 --50 ND ND ND ND ND --ND ug/L 04/23/96 --50 ND ND ND ND ND --ND ug/L 06/17/97 --50 ND ND ND ND ND --ND ug/L 10/16/97 --50 ND ND ND ND ND --ND ug/L 04/21/98 --50 ND ND ND ND ND --ND ug/L 04/07/99 --50 ND ND ND ND ND --ND ug/L 10/13/99 --50 ND ND ND ND ND --ND ug/L 04/05/00 --50 ND ND ND ND ND --ND ug/L 10/25/00 --50 ND ND ND ND ND --ND ug/L 04/04/01 --50 ND ND ND ND ND --ND ug/L 04/08/02 --50 ND ND ND ND ND --ND ug/L 10/21/02 --100 ND ND ND ND ND --ND ug/L 04/14/03 --100 ND ND ND ND ND --ND ug/L 10/01/03 --100 ND ND ND ND ND --ND ug/L 04/05/04 --100 ND ND ND ND ND --ND ug/L 10/18/04 --100 ND ND ND ND ND --ND ug/L 04/07/05 --100 ND ND ND ND ND --ND ug/L 10/06/05 --100 ND ND ND ND ND --ND ug/L 04/03/06 --100 ND ND ND ND ND --ND ug/L 10/03/06 --100 ND ND ND ND ND --ND ug/L 04/05/07 --100 ND ND ND ND ND --ND ug/L 10/18/07 --100 ND ND --ND ND --ND ug/L 04/29/08 --100 ND ND ND ND ND --ND ug/L 10/23/08 --100 ND ND ND ND ND --ND ug/L 04/07/09 --100 ND ND ND ND ND --ND ug/L 10/19/09 --100 ND ND ND ND ND --ND ug/L 04/28/10 --100 ND ND ND ND ND --ND ug/L 10/12/10 --100 ND ND ND ND ND --ND ug/L 04/11/11 --100 ND ND ND ND ND --ND ug/L 10/04/11 --100 ND ND ND ND ND ND ND ug/L 04/10/12 --100 ND ND ND ND ND --ND ug/L 10/15/12 --100 ND ND ND ND ND --ND ug/L 04/09/13 --100 ND ND ND ND ND --ND ug/L 10/08/13 --100 ND ND ND ND ND --ND ug/L 04/08/14 --100 ND ND ND ND ND --ND ug/L 10/08/14 1.1 100 ND 1.4 J ND ND ND --ND ug/L 04/08/15 1.1 100 ND 5.0 J ND ND ND --ND Verification Event ug/L 05/26/15 1.1 100 ND ----------ND ug/L 10/28/15 1.1 100 ND ND ND ND ND ND ND ug/L 04/05/16 1.1 100 ND ND ND ND ND ND ND ug/L 10/04/16 1.1 100 ND ND ND ND ND ND ND ug/L 04/03/17 1.1 100 ND ND ND ND ND ND ND June 2017 11 of 13 141122017.101 0739612716.102 G:\PROJECTS\Waste Management\Randolph County\141122017 - Randolph Co LF - NC\Phase 101 - 1st SA WQM Event\600 CALCULATIONS\Tables April 2017.xlsx MW-5 MW-6 MW-7 MW-8 MW-9 MW-10S Summary of Historical Groundwater Monitoring Results TABLE 4 Closed Randolph County Landfill, Permit No. 76-01 Upgradient WellSWS Reporting Limit Detected Monitoring Constituent/Parameter Units Date Blanks Method Detection Limit Downgradient Wells Tetrachloroethene ug/L 09/22/94 --5 ND ND ND ND ND --ND NC 2L = 0.7 ug/L ug/L 11/08/94 --5 ND ND ND ND ND --ND EPA MCL = 5 ug/L ug/L 01/18/95 --5 ND ND ND ND ND --ND ug/L 04/23/96 --5 ND ND ND ND ND --ND ug/L 06/17/97 --5 ND ND ND ND ND --ND ug/L 10/16/97 --5 ND ND ND ND ND --ND ug/L 04/21/98 --5 ND ND ND ND ND --ND ug/L 04/07/99 --5 ND ND ND ND ND --ND ug/L 10/13/99 --5 ND ND ND ND ND --ND ug/L 04/05/00 --5 ND ND ND ND ND --ND ug/L 10/25/00 --5 ND ND ND ND ND --ND ug/L 04/04/01 --5 ND ND ND ND ND --ND ug/L 04/08/02 --5 ND ND ND ND ND --ND ug/L 10/21/02 --5 ND ND ND ND ND --ND ug/L 04/14/03 --5 ND ND ND ND ND --ND ug/L 10/01/03 --5 ND ND ND ND ND --ND ug/L 04/05/04 --5 ND ND ND ND ND --ND ug/L 10/18/04 --5 ND ND ND ND ND --ND ug/L 04/07/05 --5 ND ND ---------- ug/L 10/06/05 --5 ND ND ND ND ND --ND ug/L 04/03/06 --5 ND ND ND ND ND --ND ug/L 10/03/06 --5 ND ND ND ND ND --ND ug/L 04/05/07 --3 ND ND ND ND ND --ND ug/L 10/18/07 --1 ND ND --0.2 J 0.3 J --ND ug/L 04/29/08 --1 ND ND ND ND ND --ND ug/L 10/23/08 --1 ND ND ND ND ND --ND ug/L 04/07/09 --1 ND ND ND ND ND --ND ug/L 10/19/09 --1 ND ND ND ND ND --ND ug/L 04/28/10 --1 ND ND ND ND 0.49 J --ND ug/L 10/12/10 --1 ND ND ND 0.48 J ND --ND ug/L 04/11/11 --1 ND ND ND ND ND --ND ug/L 10/04/11 --1 ND ND ND ND ND 2.8 ND ug/L 04/10/12 --1 ND ND ND 0.56 J ND --ND ug/L 10/15/12 --1 ND ND ND 0.46 J ND --ND ug/L 04/09/13 --1 ND ND ND 0.77 J ND --ND ug/L 10/08/13 --1 ND ND ND 0.45 J ND --ND ug/L 04/08/14 --1 ND ND ND 0.64 J ND --ND ug/L 10/08/14 0.17 1 ND ND ND 0.71 J ND --ND ug/L 04/08/15 0.17 1 ND ND ND ND ND --ND ug/L 10/28/15 0.17 1 ND ND ND 0.98 J ND 7.0 ND ug/L 04/05/16 0.17 1 ND ND ND ND ND 1.0 ND ug/L 10/04/16 0.17 1 ND ND ND 0.66 J ND 1.3 ND ug/L 04/03/17 0.17 1 ND ND ND 0.63 J ND 1.6 ND Toluene ug/L 09/22/94 --5 ND ND ND ND ND --ND NC 2L = 600 ug/L ug/L 11/08/94 --5 ND ND ND ND ND --ND EPA MCL = 1000 ug/L ug/L 01/18/95 --5 ND ND ND ND ND --ND ug/L 04/23/96 --5 ND ND ND ND ND --ND ug/L 06/17/97 --5 ND ND ND ND ND --ND ug/L 10/16/97 --5 ND ND ND ND ND --ND ug/L 04/21/98 --5 ND ND ND ND ND --ND ug/L 04/07/99 --5 ND ND ND ND ND --ND ug/L 10/13/99 --5 ND ND ND ND ND --ND ug/L 04/05/00 --5 ND ND ND ND ND --ND ug/L 10/25/00 --5 ND ND ND ND ND --ND ug/L 04/04/01 --5 ND ND ND ND ND --ND ug/L 04/08/02 --5 ND ND ND ND ND --ND ug/L 10/21/02 --5 ND ND ND ND ND --ND ug/L 04/14/03 --5 ND ND ND ND ND --ND ug/L 10/01/03 --5 ND ND ND ND ND --ND ug/L 04/05/04 --5 ND ND ND ND ND --ND ug/L 10/18/04 --5 ND ND ND ND ND --ND ug/L 04/07/05 --5 ND ND ND ND ND --ND ug/L 10/06/05 --5 ND ND ND ND ND --ND ug/L 04/03/06 --5 ND ND ND ND ND --ND ug/L 10/03/06 --5 ND ND ND ND ND --ND ug/L 04/05/07 --5 ND ND ND ND ND --ND ug/L 10/18/07 --1 ND ND --ND ND --ND ug/L 04/29/08 --1 ND ND ND ND ND --ND ug/L 10/23/08 --1 ND ND ND ND ND --ND ug/L 04/07/09 --1 ND ND ND ND ND --ND ug/L 10/19/09 --1 ND ND ND ND ND --ND ug/L 04/28/10 --1 ND ND ND ND ND --ND ug/L 10/12/10 --1 ND ND ND ND ND --ND ug/L 04/11/11 --1 ND ND ND ND ND --ND ug/L 10/04/11 --1 ND ND ND ND ND ND ND ug/L 04/10/12 --1 ND ND ND ND ND --ND ug/L 10/15/12 --1 ND ND ND ND ND --ND ug/L 04/09/13 --1 ND ND ND ND ND --ND ug/L 10/08/13 --1 ND ND ND ND ND --ND ug/L 04/08/14 --1 ND ND ND ND ND --ND ug/L 10/08/14 0.14 1 ND 0.78 J 1.0 ND 1.4 --ND ug/L 04/08/15 0.14 1 ND ND ND ND ND --ND ug/L 10/28/15 0.14 1 ND ND ND ND ND ND ND ug/L 04/05/16 0.14 1 ND ND ND ND ND ND ND ug/L 10/04/16 0.14 1 ND ND ND ND ND ND ND ug/L 04/03/17 0.14 1 ND ND ND ND ND ND ND Trichloroethene ug/L 09/22/94 --5 ND ND ND ND ND --ND NC 2L = 3 ug/L ug/L 11/08/94 --5 ND ND ND ND ND --ND EPA MCL = 5 ug/L ug/L 01/18/95 --5 ND ND ND ND ND --ND ug/L 04/23/96 --5 ND ND ND ND ND --ND ug/L 06/17/97 --5 ND ND ND ND ND --ND ug/L 10/16/97 --5 ND ND ND ND ND --ND ug/L 04/21/98 --5 ND ND ND ND ND --ND ug/L 04/07/99 --5 ND ND ND ND ND --ND ug/L 10/13/99 --5 ND ND ND ND ND --ND ug/L 04/05/00 --5 ND ND ND ND ND --ND ug/L 10/25/00 --5 ND ND ND ND ND --ND ug/L 04/04/01 --5 ND ND ND ND ND --ND ug/L 04/08/02 --5 ND ND ND ND ND --ND ug/L 10/21/02 --5 ND ND ND ND ND --ND ug/L 04/14/03 --5 ND ND ND ND ND --ND ug/L 10/01/03 --5 ND ND ND ND ND --ND ug/L 04/05/04 --5 ND ND ND ND ND --ND ug/L 10/18/04 --5 ND ND ND ND ND --ND ug/L 04/07/05 --5 ND ND ---------- ug/L 10/06/05 --5 ND ND ND ND ND --ND ug/L 04/03/06 --5 ND ND ND ND ND --ND ug/L 10/03/06 --5 ND ND ND ND ND --ND ug/L 04/05/07 --3 ND ND ND ND ND --ND ug/L 10/18/07 --1 ND ND --0.7 J 0.2 J --ND ug/L 04/29/08 --1 ND ND ND 0.67 J 0.41 J --ND ug/L 10/23/08 --1 ND ND 0.51 J 0.95 J ND --ND ug/L 04/07/09 --1 ND ND ND 0.90 J 0.46 J --ND ug/L 10/19/09 --1 ND ND 0.53 J 1.2 ND --ND ug/L 04/28/10 --1 ND ND ND 1.1 0.51 J --ND ug/L 10/12/10 --1 ND ND 0.46 J 1.5 ND --ND ug/L 04/11/11 --1 ND ND ND 1.4 ND --ND ug/L 10/04/11 --1 ND ND ND 1.6 ND 2.2 ND ug/L 04/10/12 --1 ND ND ND 1.6 0.39 J --ND ug/L 10/15/12 --1 ND ND ND 1.8 ND --ND ug/L 04/09/13 --1 ND ND ND 2.4 ND --ND ug/L 10/08/13 --1 ND ND ND 1.9 ND --ND ug/L 04/08/14 --1 ND ND ND 2.3 ND --ND ug/L 10/08/14 0.15 1 ND ND ND 2.7 ND --ND ug/L 04/08/15 0.15 1 ND ND ND 0.96 J ND --ND ug/L 10/28/15 0.15 1 0.50 J ND ND 3.1 ND 3.6 ND ug/L 04/05/16 0.15 1 ND ND ND 1.4 ND 0.99 J ND ug/L 10/04/16 0.15 1 ND ND ND 2.4 ND 1.4 ND ug/L 04/03/17 0.15 1 ND ND ND 2.9 ND 1.5 ND June 2017 12 of 13 141122017.101 0739612716.102 G:\PROJECTS\Waste Management\Randolph County\141122017 - Randolph Co LF - NC\Phase 101 - 1st SA WQM Event\600 CALCULATIONS\Tables April 2017.xlsx MW-5 MW-6 MW-7 MW-8 MW-9 MW-10S Summary of Historical Groundwater Monitoring Results TABLE 4 Closed Randolph County Landfill, Permit No. 76-01 Upgradient WellSWS Reporting Limit Detected Monitoring Constituent/Parameter Units Date Blanks Method Detection Limit Downgradient Wells Trichlorofluoromethane ug/L 09/22/94 --5 ND ND 19 ND ND --ND NC 2L = 2000 ug/L ug/L 11/08/94 --5 ND ND 29 ND ND --ND (No EPA MCL)ug/L 01/18/95 --5 ND ND 20 ND ND --ND ug/L 04/23/96 --5 ND ND ND ND ND --ND ug/L 06/17/97 --5 ND ND ND ND ND --ND ug/L 10/16/97 --5 ND ND 14 ND ND --ND ug/L 04/21/98 --5 ND ND 15 ND ND --ND ug/L 04/07/99 --5 ND ND 9.9 ND ND --ND ug/L 10/13/99 --5 ND ND 7 ND ND --ND ug/L 04/05/00 --5 ND ND 6.5 ND ND --ND ug/L 10/25/00 --5 ND ND ND ND ND --ND ug/L 04/04/01 --5 ND ND 6 ND ND --ND ug/L 04/08/02 --5 ND ND ND ND ND --ND ug/L 10/21/02 --5 ND ND 6.9 ND ND --ND ug/L 04/14/03 --5 ND ND ND ND ND --ND ug/L 10/01/03 --5 ND ND ND ND ND --ND ug/L 04/05/04 --5 ND ND ND ND ND --ND ug/L 10/18/04 --5 ND ND ND ND ND --ND ug/L 04/07/05 --5 ND ND ND ND ND --ND ug/L 10/06/05 --5 ND ND ND ND ND --ND ug/L 04/03/06 --5 ND ND ND ND ND --ND ug/L 10/03/06 --5 ND ND ND ND ND --ND ug/L 04/05/07 --5 ND ND ND ND ND --ND ug/L 10/18/07 --1 ND ND --0.5 J ND --ND ug/L 04/29/08 --1 ND ND 1.1 ND ND --ND ug/L 10/23/08 --1 ND ND 1.1 0.65 J ND --ND ug/L 04/07/09 --1 ND ND 1.1 0.86 J ND --ND ug/L 10/19/09 --1 ND ND 1.1 0.62 J ND --ND ug/L 04/28/10 --1 ND ND 1.0 0.49 J ND --ND ug/L 10/12/10 --1 ND ND 1.8 0.66 J ND --ND ug/L 04/11/11 --1 ND ND ND ND ND --ND ug/L 10/04/11 --1 ND ND 1.7 0.73 J ND 3.9 ND ug/L 04/10/12 --1 ND ND 0.55 J 0.36 J ND --ND ug/L 10/15/12 --1 ND ND 0.72 J ND ND --ND ug/L 04/09/13 --1 ND ND 0.47 J 0.70 J ND --ND ug/L 10/08/13 --1 ND ND 0.47 J ND ND --ND ug/L 04/08/14 --1 ND ND ND ND ND --ND ug/L 10/08/14 0.24 1 ND ND ND ND ND --ND ug/L 04/08/15 0.24 1 ND ND ND ND ND --ND ug/L 10/28/15 0.24 1 ND ND ND ND ND 3.2 ND ug/L 04/05/16 0.24 1 ND ND ND ND ND 1.5 ND ug/L 10/04/16 0.24 1 ND ND ND ND ND ND ND ug/L 04/03/17 0.24 1 ND ND ND ND ND 1.1 ND Vinyl chloride ug/L 09/22/94 --10 ND ND ND ND ND --ND NC 2L = 0.03 ug/L ug/L 11/08/94 --10 ND ND ND ND ND --ND EPA MCL = 2 ug/L ug/L 01/18/95 --10 ND ND ND ND ND --ND ug/L 04/23/96 --10 ND ND ND ND ND --ND ug/L 06/17/97 --10 ND ND ND ND ND --ND ug/L 10/16/97 --10 ND ND ND ND ND --ND ug/L 04/21/98 --10 ND ND ND ND ND --ND ug/L 04/07/99 --10 ND ND ND ND ND --ND ug/L 10/13/99 --10 ND ND ND ND ND --ND ug/L 04/05/00 --10 ND ND ND ND ND --ND ug/L 10/25/00 --10 ND ND ND ND ND --ND ug/L 04/04/01 --10 ND ND ND ND ND --ND ug/L 04/04/02 --10 ND ND ND ND ND --ND ug/L 10/21/02 --10 ND ND ND ND ND --ND ug/L 04/14/03 --10 ND ND ND ND ND --ND ug/L 10/01/03 --10 ND ND ND ND ND --ND ug/L 04/05/04 --10 ND ND ND ND ND --ND ug/L 10/18/04 --10 ND ND ND ND ND --ND ug/L 04/07/05 --10 ND ND ND ND ND --ND ug/L 10/06/05 --10 ND ND ND ND ND --ND ug/L 04/03/06 --10 ND ND ND ND ND --ND ug/L 10/03/06 --10 ND ND ND ND ND --ND ug/L 04/05/07 --10 ND ND ND ND ND --ND ug/L 10/18/07 --1 ND ND --ND ND --ND ug/L 04/29/08 --1 ND ND 0.41 J ND 0.54 J --ND ug/L 10/23/08 --1 ND ND 0.93 J ND ND --ND ug/L 04/07/09 --1 ND ND 0.46 J ND 0.71 J --ND ug/L 10/19/09 --1 ND ND 1.2 ND ND --ND ug/L 04/28/10 --1 ND ND 0.63 J ND 0.64 J --ND ug/L 10/12/10 --1 ND ND 1.0 ND ND --ND ug/L 04/11/11 --1 ND ND 0.70 J ND ND --ND ug/L 10/04/11 --1 ND ND 1.1 ND ND ND ND ug/L 04/10/12 --1 ND ND 0.51 J ND 0.34 J --ND ug/L 10/15/12 --1 ND ND 1.0 ND ND --ND ug/L 04/09/13 --1 ND ND 0.75 J ND ND --ND ug/L 10/08/13 --1 ND ND 0.74 J ND ND --ND ug/L 04/08/14 --1 ND ND 0.51 J ND ND --ND ug/L 10/08/14 0.32 1 ND ND 0.52 J ND ND --ND ug/L 04/08/15 0.32 1 ND ND ND ND ND --ND ug/L 10/28/15 0.32 1 ND ND 0.48 J ND ND 1.3 ND ug/L 04/05/16 0.32 1 ND ND ND ND ND ND ND ug/L 10/04/16 0.32 1 ND ND ND ND ND ND ND ug/L 04/03/17 0.32 1 ND ND ND ND ND 0.70 J ND Xylenes (Total)ug/L 09/22/94 --5 ND ND ND ND ND --ND NC 2L = 500 ug/L ug/L 11/08/94 --5 ND ND ND ND ND --ND EPA MCL = 10,000 ug/L ug/L 01/18/95 --5 ND ND ND ND ND --ND ug/L 04/23/96 --5 ND ND ND ND ND --ND ug/L 06/17/97 --5 ND ND ND ND ND --ND ug/L 10/16/97 --5 ND ND ND ND ND --ND ug/L 04/21/98 --5 ND ND ND ND ND --ND ug/L 04/07/99 --5 ND ND ND ND ND --ND ug/L 10/13/99 --5 ND ND ND ND ND --ND ug/L 04/05/00 --5 ND ND ND ND ND --ND ug/L 10/25/00 --5 ND ND ND ND ND --ND ug/L 04/04/01 --5 ND ND ND ND ND --ND ug/L 04/04/02 --5 ND ND ND ND ND --ND ug/L 10/21/02 --5 ND ND ND ND ND --ND ug/L 04/14/03 --5 ND ND ND ND ND --ND ug/L 10/01/03 --5 ND ND ND ND ND --ND ug/L 04/05/04 --5 ND ND ND ND ND --ND ug/L 10/18/04 --5 ND ND ND ND ND --ND ug/L 04/07/05 --5 ND ND ND ND ND --ND ug/L 10/06/05 --5 ND ND ND ND ND --ND ug/L 04/03/06 --5 ND ND ND ND ND --ND ug/L 10/03/06 --5 ND ND ND ND ND --ND ug/L 04/05/07 --4 ND ND ND ND ND --ND ug/L 10/18/07 --5 ND ND --ND ND --ND ug/L 04/29/08 --5 ND ND ND ND ND --ND ug/L 10/23/08 --5 ND ND 1.2 J ND ND --ND ug/L 04/07/09 --5 ND ND ND ND ND --ND ug/L 10/19/09 --5 ND ND 1.2 J ND ND --ND ug/L 04/28/10 --5 ND ND 0.54 J ND ND --ND ug/L 10/12/10 --5 ND ND 1.0 J ND ND --ND ug/L 04/11/11 --5 ND ND ND ND ND --ND ug/L 10/04/11 --5 ND ND ND ND ND ND ND ug/L 04/10/12 --5 ND ND ND ND ND --ND ug/L 10/15/12 --5 ND ND 0.64 J ND ND --ND ug/L 04/09/13 --5 ND ND 0.57 J ND ND --ND ug/L 10/08/13 --5 ND ND ND ND ND --ND ug/L 04/08/14 --5 ND ND ND ND ND --ND ug/L 10/08/14 0.45 5 ND ND ND ND ND --ND ug/L 04/08/15 0.45 5 ND ND ND ND ND --ND ug/L 10/28/15 0.45 5 ND ND ND ND ND ND ND ug/L 04/05/16 0.45 5 ND ND ND ND ND ND ND ug/L 10/04/16 0.45 5 ND ND ND ND ND ND ND ug/L 04/03/17 0.45 5 ND ND ND ND ND ND ND June 2017 13 of 13 141122017.101 0739612716.102 G:\PROJECTS\Waste Management\Randolph County\141122017 - Randolph Co LF - NC\Phase 101 - 1st SA WQM Event\600 CALCULATIONS\Tables April 2017.xlsx MW-5 MW-6 MW-7 MW-8 MW-9 MW-10S Summary of Historical Groundwater Monitoring Results TABLE 4 Closed Randolph County Landfill, Permit No. 76-01 Upgradient WellSWS Reporting Limit Detected Monitoring Constituent/Parameter Units Date Blanks Method Detection Limit Downgradient Wells Diethylphthalate ug/L 04/21/98 --10 ND ND ND ND ND --ND NC 2L = 6000 ug/L ug/L 04/07/99 --10 ND ND ND ND ND --ND (No EPA MCL)ug/L 10/13/99 --10 ND ND ND ND ND --ND ug/L 04/05/00 --10 ND ND ND ND ND --ND ug/L 10/25/00 --10 ND ND ND ND ND --ND ug/L 04/04/01 --10 ND ND ND ND ND --ND ug/L 04/04/02 --10 ND ND ND ND ND --ND ug/L 10/21/02 --10 ND ND ND ND ND --ND ug/L 04/14/03 --10 ND ND ND ND ND --ND ug/L 10/01/03 --10 ND ND ND ND ND --ND ug/L 04/05/04 --10 ND ND ND ND ND --ND ug/L 10/18/04 --10 ND ND ND ND ND --ND ug/L 04/07/05 --10 ND ND ND ND ND --ND ug/L 10/06/05 --10 ND ND ND ND ND --ND ug/L 04/03/06 --10 ND ND ND ND ND --ND ug/L 10/03/06 --10 ND ND ND ND ND --ND ug/L 04/05/07 --10 ND ND ND ND ND --ND ug/L 10/18/07 --10 ND ND ND ND ND --ND ug/L 04/29/08 --10 ND ND ND ND ND --ND ug/L 04/07/09 --10 ND ND ND ND ND --ND ug/L 04/28/10 --10 ND ND ND ND ND --ND ug/L 04/11/11 --6000 2.2 J ND ND ND ND --ND ug/L 04/10/12 --6000 ND 14 J ND 9.4 J 15 J --ND ug/L 04/09/13 --10 ND ND ND ND ND --ND ug/L 04/08/14 --10 ND 23 ND ND ND --ND ug/L 10/08/14 2.1 10 4.3 J 2.1 J 3.8 J ND 3.4 J --ND ug/L 04/08/15 2.1 10 ND ND ND ND ND --ND ug/L 10/28/15 2.1 10 ND ND ND ND ND ND ND ug/L 04/05/16 2.1 10 ND ND ND ND ND ND ND ug/L 10/04/16 2.1 10 ND ND ND ND ND ND ND Notes:ug/L =micrograms per liter mg/L = milligrams per liter ND =Not detected at the stated reporting limit for data before October 2007 and not detected at the laboratory detection limit for data from October 2007 forward NM =Not measured J =estimated concentration B =Blank-qualified result R =unusable data -- =no data available # =EPA Action Level * =EPA Secondary MCL Blanks =field, trip and method blanks Bold Only =Concentration above current NC 2L Groundwater Standard or NC SWS Groundwater Protection Standard Shaded and Bold =Concentration above current NC 2L Groundwater Standard or NC SWS Groundwater Protection Standard and EPA MCL GWPS =Solid Waste Section Groundwater Protection Standard NC 2L =North Carolina 2L Groundwater Standard EPA MCL =US Environmental Protection Agency Maximum Contaminant Level SWS Reporting Limit =NCPQL or lab-specific reporting limit prior to October 2007 and NCSWSL starting in October 2007 Historical data prior to April 2008 provided by the County as taken from historical reports from Hazen and Sawyer and Environment 1. June 2017 1 of 3 141122017.101 0739612716.102 G:\PROJECTS\Waste Management\Randolph County\141122017 - Randolph Co LF - NC\Phase 101 - 1st SA WQM Event\600 CALCULATIONS\Tables April 2017.xlsx MW-5 MW-6 MW-7 MW-8 MW-9 MW-10S pH (field)S.U.09/22/94 6.1 6.1 6.3 5.7 5.8 -- S.U.11/08/94 7.2 6.1 5.5 6.4 6.2 -- S.U.01/18/95 6.9 5.8 5 6 6.2 -- S.U.04/23/96 6.8 6.2 5.6 6.3 6.2 -- S.U.06/17/97 6 6.1 5.6 7.5 6.2 -- S.U.10/16/97 6.2 5 5.3 5.6 5.7 -- S.U.04/21/98 6.8 5.9 5 6.1 6.2 -- S.U.04/07/99 7 5.8 4.9 6 6 -- S.U.10/13/99 7.2 6.6 5.3 6.5 6.6 -- S.U.04/05/00 6.8 6 5.3 6.2 6.3 -- S.U.10/25/00 6.8 5.8 4.6 6 6 -- S.U.04/04/01 6.7 6.7 4.7 6.1 5.9 -- S.U.04/08/02 6.8 5.4 5.8 6.1 5.9 -- S.U.10/21/02 6.7 6.1 5.2 6.7 6.3 -- S.U.04/14/03 7 6.1 5.1 6.3 6.3 -- S.U.10/01/03 6.7 5.5 4.8 6.1 6 -- S.U.04/05/04 6.9 6.7 5.3 6.6 6.3 -- S.U.10/18/04 7.1 5.8 5.2 6.3 6.1 -- S.U.04/07/05 7 6 5 6.2 6.1 -- S.U.10/06/05 7 5.9 5 6.1 6.1 -- S.U.04/03/06 7 5.9 4.9 6.2 6.1 -- S.U.10/03/06 6.8 5.8 5 6.2 6.2 -- S.U.04/05/07 6.8 5.5 5 6 6 -- S.U.10/18/07 7.1 6 --6.4 6.4 -- S.U.04/29/08 6.17 6.92 4.27 6.27 5.89 -- S.U.10/23/08 6.96 4.88 4.53 5.90 6.27 -- S.U.04/07/09 6.63 5.34 4.44 5.78 5.70 -- S.U.10/19/09 6.78 5.49 4.86 7.97 7.82 -- S.U.04/28/10 6.82 5.18 4.62 5.86 6.12 -- S.U.10/12/10 6.98 5.52 4.82 5.73 5.98 -- S.U.04/11/11 6.63 5.13 4.61 5.80 5.81 5.45 S.U.10/04/11 7.07 5.96 5.14 6.34 6.45 -- S.U.04/10/12 6.67 5.53 4.97 5.75 6.39 -- S.U.10/15/12 6.29 5.81 5.06 6.09 6.07 -- S.U.04/09/13 6.34 5.59 4.79 5.98 6.16 -- S.U.10/07/13 6.88 5.93 4.96 6.13 6.17 -- S.U.04/08/14 6.91 6.21 5.38 6.42 6.46 -- S.U.10/08/14 7.26 6.39 5.31 6.48 6.61 -- S.U.04/08/15 6.35 5.89 4.88 5.67 5.75 -- S.U.10/28/15 6.71 5.77 4.70 5.99 6.07 5.29 S.U.04/05/16 6.66 4.86 4.73 5.82 6.22 5.05 S.U.10/04/16 6.17 4.27 4.49 6.27 5.76 5.00 S.U.04/03/17 6.90 5.88 4.99 6.16 6.16 5.25 Conductivity (field)uS/cm 09/22/94 430 230 41 150 160 -- uS/cm 11/08/94 480 260 40 160 180 -- uS/cm 01/18/95 500 140 42 150 190 -- uS/cm 04/23/96 340 170 38 120 170 -- uS/cm 06/17/97 470 220 52 150 190 -- uS/cm 10/16/97 710 150 59 160 200 -- uS/cm 04/21/98 500 160 62 140 220 -- uS/cm 04/07/99 600 120 66 160 230 -- uS/cm 10/13/99 600 170 76 160 200 -- uS/cm 04/05/00 560 160 76 150 260 -- uS/cm 10/25/00 590 120 90 150 220 -- uS/cm 04/04/01 620 130 84 150 260 -- uS/cm 04/08/02 540 100 78 140 270 -- uS/cm 10/21/02 520 172 107 146 263 -- uS/cm 04/14/03 634 158 58 162 418 -- uS/cm 10/01/03 734 161 70 176 373 -- uS/cm 04/05/04 680 160 100 170 330 -- uS/cm 10/18/04 694 139 67 157 317 -- uS/cm 04/07/05 696 175 81 161 379 -- uS/cm 10/06/05 764 170 107 173 325 -- uS/cm 04/03/06 736 173 106 158 347 -- uS/cm 10/03/06 766 261 86 173 315 -- uS/cm 04/05/07 674 102 84 179 338 -- uS/cm 10/18/07 733 144 --197 310 -- uS/cm 04/29/08 717 88 80 175 349 -- uS/cm 10/23/08 653 103 152 176 312 -- uS/cm 04/07/09 776 116 65 186 421 -- uS/cm 10/19/09 828 140 172 203 360 -- uS/cm 04/28/10 820 233 82 195 641 -- uS/cm 10/12/10 945 122 187 220 414 -- uS/cm 04/11/11 884 94 112 214 468 267 uS/cm 10/04/11 828 229 192 216 374 -- uS/cm 04/10/12 437 93 83 181 490 -- uS/cm 10/15/12 432 166 131 181 296 -- uS/cm 04/09/13 718 63 97 175 374 -- uS/cm 10/07/13 867 251 135 237 451 -- uS/cm 04/08/14 948 112 143 244 568 -- uS/cm 10/08/14 990 210 177 269 417 -- uS/cm 04/08/15 835 144 91 206 448 -- uS/cm 10/28/15 794.0 188.3 140.6 230.0 385.7 262.6 uS/cm 04/05/16 902 86 104 226 637 214 uS/cm 10/04/16 843 124 148 232 423 193 uS/cm 04/03/17 715 207 108 181 423 197 Detected Monitoring Constituent/Parameter Units Date Upgradient Well TABLE 5 Summary of Groundwater Field Parameters Closed Randolph County Landfill, Permit No. 76-01 Downgradient Wells June 2017 2 of 3 141122017.101 0739612716.102 G:\PROJECTS\Waste Management\Randolph County\141122017 - Randolph Co LF - NC\Phase 101 - 1st SA WQM Event\600 CALCULATIONS\Tables April 2017.xlsx MW-5 MW-6 MW-7 MW-8 MW-9 MW-10S Detected Monitoring Constituent/Parameter Units Date Upgradient Well TABLE 5 Summary of Groundwater Field Parameters Closed Randolph County Landfill, Permit No. 76-01 Downgradient Wells Temperature (field)Celsius 11/08/94 ----15 15 13 -- Celsius 01/18/95 ----14 10 13 -- Celsius 04/23/96 17 16 15 13 16 -- Celsius 06/17/97 19 15 17 15 17 -- Celsius 10/16/97 16 15 15 15 14 -- Celsius 04/21/98 15 12 14 14 15 -- Celsius 04/07/99 18 14 16 14 15 -- Celsius 10/13/99 16 16 16 16 16 -- Celsius 04/05/00 15 12 13 13 14 -- Celsius 10/25/00 16 16 16 16 15 -- Celsius 04/04/01 14 12 13 13 15 -- Celsius 04/08/02 16 13 11 16 16 -- Celsius 10/21/02 17 17 16 16 16 -- Celsius 04/14/03 18 12 15 14 17 -- Celsius 10/01/03 16 16 16 15 15 -- Celsius 04/05/04 15 12 13 12 13 -- Celsius 10/18/04 17 16 15 15 15 -- Celsius 04/07/05 18 14 16 15 16 -- Celsius 10/06/05 18 18 18 17 17 -- Celsius 04/03/06 17 15 16 15 16 -- Celsius 10/03/06 18 18 17 16 16 -- Celsius 04/05/07 17 13 15 13 15 -- Celsius 10/18/07 18 17 --16 16 -- Celsius 04/29/08 16.53 14.04 15.54 15.83 16.19 -- Celsius 10/23/08 15.12 16.36 16.61 17.33 16.79 -- Celsius 04/07/09 14.62 12.30 14.35 12.71 14.08 -- Celsius 10/19/09 17.86 17.89 16.95 16.31 16.17 -- Celsius 04/28/10 16.76 15.39 16.11 15.15 17.17 -- Celsius 10/12/10 18.62 19.67 18.42 18.61 16.26 -- Celsius 04/11/11 16.62 12.82 16.42 14.68 15.37 15.38 Celsius 10/04/11 18.58 18.01 17.37 17.13 16.73 -- Celsius 04/10/12 16.36 14.62 15.39 13.48 15.36 -- Celsius 10/15/12 17.51 17.22 16.53 16.52 15.67 -- Celsius 04/09/13 18.06 14.42 15.89 14.81 15.77 -- Celsius 10/07/13 17.3 17.3 16.5 15.9 15.5 -- Celsius 04/08/14 17.9 11.9 14.9 13.2 14.8 -- Celsius 10/08/14 17.8 17.3 17.2 16.0 15.6 -- Celsius 04/08/15 16.0 13.4 16.2 14.3 14.8 -- Celsius 10/28/15 18.5 16.2 17.3 16.9 15.0 17.1 Celsius 04/05/16 14.9 11.7 16.2 13.4 15.7 12.7 Celsius 10/04/16 17.28 17.93 17.3 18.28 15.7 17.0 Celsius 04/03/17 15.6 14.9 16.3 14.0 15.4 15.9 Turbidity (field)NTU 04/29/08 66.5 97.8 3.38 6.15 2.37 -- NTU 10/23/08 3.03 23.6 1.66 26.6 1.44 -- NTU 04/07/09 8.52 46.0 9.24 7.55 1.56 -- NTU 10/19/09 16.7 32.6 5.53 13.1 7.89 -- NTU 04/28/10 2.57 24.6 11 13.3 2.36 -- NTU 10/12/10 5.45 45.3 2.05 39.4 0.00 -- NTU 04/11/11 4.39 25.3 16.7 34.7 2.43 5.35 NTU 10/04/11 4.24 8.83 1.64 8.52 0.86 -- NTU 04/10/12 8.27 18.3 15.7 10.0 9.24 -- NTU 10/15/12 32.2 7.46 45.9 37.9 1.60 -- NTU 04/09/13 21.1 56.0 34.3 15.3 1.71 -- NTU 10/07/13 8.46 9.21 22.8 12.4 1.14 -- NTU 04/08/14 10.2 60.8 19.3 19.5 2.97 -- NTU 10/08/14 7.13 14.0 3.62 16.2 2.27 -- NTU 04/08/15 1.45 11.1 7.27 7.22 4.02 -- NTU 10/28/15 3.98 5.61 1.29 14.0 3.40 1.33 NTU 04/05/16 17.9 18.4 17.3 4.97 2.64 1.23 NTU 10/04/16 3.10 24.3 1.24 1.05 0.60 1.41 NTU 04/03/17 1.14 8.76 2.59 1.46 1.02 1.80 Dissolved Oxygen (field)mg/L 04/29/08 --5.20 1.12 4.15 1.27 -- mg/L 10/23/08 --0.00 0.00 3.41 0.00 -- mg/L 04/07/09 5.39 4.77 1.11 5.73 1.16 -- mg/L 10/19/09 3.48 1.92 1.19 3.67 2.33 -- mg/L 04/28/10 4.30 2.20 0.86 3.97 1.13 -- mg/L 10/12/10 4.88 2.97 0.44 2.85 0.53 -- mg/L 04/11/11 2.69 4.95 1.10 4.24 1.52 1.67 mg/L 10/04/11 4.18 2.60 0.73 2.97 0.68 -- mg/L 04/10/12 --3.87 --3.54 0.88 -- mg/L 10/15/12 --0.69 --2.61 1.44 -- mg/L 04/09/13 --4.81 --3.70 1.98 -- mg/L 10/07/13 --0.82 --2.97 0.60 -- mg/L 04/08/14 --7.47 --3.71 0.68 -- mg/L 10/08/14 2.61 0.63 0.98 3.14 0.83 -- mg/L 04/08/15 1.81 2.88 0.73 3.12 1.06 -- mg/L 10/28/15 2.16 2.10 0.71 3.60 1.88 1.55 mg/L 04/05/16 3.43 3.45 0.85 3.39 1.14 2.24 mg/L 10/04/16 3.55 3.24 0.99 3.81 2.06 1.48 mg/L 04/03/17 5.94 2.19 0.82 5.60 1.80 2.53 June 2017 3 of 3 141122017.101 0739612716.102 G:\PROJECTS\Waste Management\Randolph County\141122017 - Randolph Co LF - NC\Phase 101 - 1st SA WQM Event\600 CALCULATIONS\Tables April 2017.xlsx MW-5 MW-6 MW-7 MW-8 MW-9 MW-10S Detected Monitoring Constituent/Parameter Units Date Upgradient Well TABLE 5 Summary of Groundwater Field Parameters Closed Randolph County Landfill, Permit No. 76-01 Downgradient Wells Oxidation Reduction Potential (field)mV 04/29/08 --102.6 175.4 83.4 104 -- mV 10/23/08 --157 167 87 79 -- mV 04/07/09 204.8 199.8 225.2 147.3 175.9 -- mV 10/19/09 161.1 167.1 162 125.7 136.7 -- mV 04/28/10 97.8 110.7 133.5 115.2 75.2 -- mV 10/12/10 169.7 136.4 164.4 307.5 114.2 -- mV 04/11/11 150.2 219.8 238.4 166.7 181.7 157.8 mV 10/04/11 -118.1 -51.3 19.8 -70.8 -106.7 -- mV 04/10/12 --117.4 --130.0 127.9 -- mV 10/15/12 --39.7 --63.2 43.9 -- mV 04/09/13 --98.8 --52.8 47.8 -- mV 10/07/13 --208.4 --163.3 134.6 -- mV 04/08/14 --248.7 --201.7 148.9 -- mV 10/08/14 151.8 202.2 160.5 183.6 74.1 -- mV 04/08/15 31.7 95.8 70.6 26.9 30.7 -- mV 10/28/15 11.0 142.3 136.8 178.3 138.2 114.5 mV 04/05/16 204.3 287.4 187.9 192.9 119.0 192.8 mV 10/04/16 220.3 199.4 195.5 90.0 154.7 247.2 mV 04/03/17 211.2 188.8 125.1 202.4 226.5 139.2 Notes:mg/L = milligrams per liter NTU =Nephelometric Turbidity Units mV =millivolts S.U. =Standard Units -- =no data available June 2017 1 of 11 141122017.101 0739612716.102 G:\PROJECTS\Waste Management\Randolph County\141122017 - Randolph Co LF - NC\Phase 101 - 1st SA WQM Event\600 CALCULATIONS\Tables April 2017.xlsx SW-1 SW-3 SW-2 SW-4 Antimony ug/L 09/22/94 --30 ND ND ND ND ND No SW Standard ug/L 11/08/94 --30 ND ND ND ND ND ug/L 01/18/95 --30 ND ND ND ND ND ug/L 04/23/96 --30 ND ND ND ND ND ug/L 06/17/97 --30 ND ND ND ND ND ug/L 10/16/97 --30 ND ND ND ND ND ug/L 04/21/98 --30 ND ND ND ND ND ug/L 04/07/99 --30 ND ND ND ND ND ug/L 10/13/99 --30 ND ND ND ND ND ug/L 04/05/00 --30 ND ND ND ND ND ug/L 10/25/00 --30 ND ND ND ND ND ug/L 04/04/01 --30 ND ND ND ND ND ug/L 04/08/02 --30 ND ND ND ND ND ug/L 10/21/02 --30 ND ND ND ND ND ug/L 04/14/03 --30 ND ND ND ND ND ug/L 10/01/03 --30 ND ND ND ND ND ug/L 04/05/04 --30 ND ND ND ND ND ug/L 10/18/04 --30 ND ND ND ND ND ug/L 04/07/05 --30 ND ND ND ND ND ug/L 10/06/05 --30 ND ND ND ND ND ug/L 04/03/06 --30 ND ND ND ND ND ug/L 10/03/06 --30 ND ND ND ND ND ug/L 04/05/07 --6 ND ND ND ND ND ug/L 10/18/07 --6 --3.5 J --3.6 J 0.1 J ug/L 04/29/08 --6 ND 1.61 J ND ND ND ug/L 10/23/08 --6 Dry 1.25 J ND 1.96 J ND ug/L 04/07/09 --6 ND ND ND ND ND ug/L 10/19/09 --6 Dry 1.52 J Dry 2.36 J 0.102 J ug/L 04/29/10 --6 ND 1.09 J ND 0.905 J ND ug/L 10/13/10 --6 ND 1.45 J ND 1.17 J ND ug/L 04/11/11 --6 ND 0.532 J ND 0.418 J ND ug/L 10/03/11 --6 ND ND 0.561 J 0.835 J ND ug/L 04/10/12 --6 ND ND 0.900 J 0.533 J ND ug/L 10/15/12 --6 0.220 J 1.26 J 1.60 J ND ND ug/L 04/09/13 --6 ND ND ND ND ND ug/L 10/08/13 --6 ND 0.572 J 1.18 J 1.57 J ND ug/L 04/08/14 --6 ND ND ND ND ND ug/L 10/08/14 0.22 6 2.28 J dry 1.83 J 2.37 J ND ug/L 04/08/15 0.22 6 ND 0.914 J ND 0.641 J ND ug/L 10/28/15 0.22 6 ND 1.24 J ND 2.29 J ND ug/L 04/05/16 0.22 6 ND 1.40 J ND 0.786 J ND ug/L 10/04/16 0.22 6 ND 2.07 J ND 1.24 B 0.388 J ug/L 04/03/17 0.37 6 ND 0.775 J ND 0.981 J ND Arsenic ug/L 09/22/94 --10 ND ND ND ND ND Human Health SW Standard = 10 ug/L ug/L 11/08/94 --10 ND ND ND ND ND ug/L 01/18/95 --10 ND ND ND ND ND ug/L 04/23/96 --10 ND ND ND ND ND ug/L 06/17/97 --10 ND ND ND ND ND ug/L 10/16/97 --10 ND ND ND ND ND ug/L 04/21/98 --10 ND ND ND ND ND ug/L 04/07/99 --10 ND ND ND ND ND ug/L 10/13/99 --10 ND ND ND ND ND ug/L 04/05/00 --10 ND ND ND ND ND ug/L 10/25/00 --10 ND ND ND ND ND ug/L 04/04/01 --10 ND ND ND ND ND ug/L 04/08/02 --10 ND ND ND ND ND ug/L 10/21/02 --10 ND ND ND ND ND ug/L 04/14/03 --10 ND ND ND ND ND ug/L 10/01/03 --10 ND ND ND ND ND ug/L 04/05/04 --10 ND ND ND ND ND ug/L 10/18/04 --10 ND ND ND ND ND ug/L 04/07/05 --10 ND ND ND ND ND ug/L 10/06/05 --10 ND ND ND ND ND ug/L 04/03/06 --10 ND ND ND ND ND ug/L 10/03/06 --10 ND ND ND ND ND ug/L 04/05/07 --10 ND ND ND ND ND ug/L 10/18/07 --10 --1.3 J --0.9 J ND ug/L 04/29/08 --6 ND ND ND ND ND ug/L 10/23/08 --10 Dry ND ND ND ND ug/L 04/07/09 --10 ND ND ND ND ND ug/L 10/19/09 --10 Dry 6.16 J Dry ND ND ug/L 04/29/10 --10 3.18 J ND ND 3.39 J ND ug/L 10/13/10 --10 ND ND 4.15 J ND ND ug/L 04/11/11 --10 3.69 J 3.83 J ND ND ND ug/L 10/03/11 --10 ND 4.44 J ND ND ND ug/L 04/10/12 --10 ND ND ND ND 3.79 J ug/L 10/15/12 --10 ND ND ND ND ND ug/L 04/09/13 --10 ND ND ND ND ND ug/L 10/08/13 --10 ND ND ND ND ND ug/L 04/08/14 --10 ND ND ND ND ND ug/L 10/08/14 5.4 10 ND dry ND ND ND ug/L 04/08/15 5.4 10 ND ND ND ND ND ug/L 10/28/15 5.4 10 ND ND ND ND ND ug/L 04/05/16 6.8 10 ND ND ND ND ND ug/L 10/04/16 6.8 10 ND ND ND ND ND ug/L 04/03/17 6.8 10 ND ND ND ND ND Downstream TABLE 6 Summary of Historical Surface Water Monitoring Results Closed Randolph County Landfill, Permit No. 76-01 BlanksDetected Monitoring Constituent/Parameter Units Date SWS Reporting Limit UpstreamMethod Detection Limit June 2017 2 of 11 141122017.101 0739612716.102 G:\PROJECTS\Waste Management\Randolph County\141122017 - Randolph Co LF - NC\Phase 101 - 1st SA WQM Event\600 CALCULATIONS\Tables April 2017.xlsx SW-1 SW-3 SW-2 SW-4 Downstream TABLE 6 Summary of Historical Surface Water Monitoring Results Closed Randolph County Landfill, Permit No. 76-01 BlanksDetected Monitoring Constituent/Parameter Units Date SWS Reporting Limit UpstreamMethod Detection Limit Barium ug/L 09/22/94 --500 ND ND ND ND ND Human Health SW Standard = 200000 ug/L ug/L 11/08/94 --500 ND ND ND ND ND ug/L 01/18/95 --500 ND ND ND ND ND ug/L 04/23/96 --500 ND ND ND ND ND ug/L 06/17/97 --500 ND ND ND ND ND ug/L 10/16/97 --500 ND ND ND ND ND ug/L 04/21/98 --500 ND ND ND ND ND ug/L 04/07/99 --500 ND ND ND ND ND ug/L 10/13/99 --500 ND ND ND ND ND ug/L 04/05/00 --500 ND ND ND ND ND ug/L 10/25/00 --500 ND ND ND ND ND ug/L 04/04/01 --500 ND ND ND ND ND ug/L 04/08/02 --500 ND ND ND ND ND ug/L 10/21/02 --500 ND ND ND ND ND ug/L 04/14/03 --500 ND ND ND ND ND ug/L 10/01/03 --500 ND ND ND ND ND ug/L 04/05/04 --500 ND ND ND ND ND ug/L 10/18/04 --500 ND ND ND ND ND ug/L 04/07/05 --500 ND ND ND ND ND ug/L 10/06/05 --500 ND ND ND ND ND ug/L 04/03/06 --500 ND ND ND ND ND ug/L 10/03/06 --500 ND ND ND ND ND ug/L 04/05/07 --100 ND ND ND ND ND ug/L 10/18/07 --100 --17.7 J --23.2 J 0.04 J ug/L 04/29/08 --100 65.6 J 33.4 J 64.5 J 27.5 J 0.2 J ug/L 10/23/08 --100 Dry 32.2 J 37.1 J 35.8 J ND ug/L 04/07/09 --100 23.5 J 24.9 J 41.4 J 27.2 J ND ug/L 10/19/09 --100 Dry 28.5 J Dry 26.6 J ND ug/L 04/29/10 --100 29.1 J 32.4 J 57.1 J 23.3 J ND ug/L 10/13/10 --100 98.8 J 20.1 J 58.3 J 34.7 J ND ug/L 04/11/11 --100 30.5 J 25.0 J 30.3 J 25.5 J ND ug/L 10/03/11 --100 21.8 J 47.0 J 24.6 J 22.7 J ND ug/L 04/10/12 --100 24.6 J 29.2 J 27.5 J 26.3 J ND ug/L 10/15/12 --100 25.4 J 21.1 J 28.7 J 21.5 J 1.04 J ug/L 04/09/13 --100 22.7 J 23.9 J 30.1 J 21.9 J ND ug/L 10/08/13 --100 27.3 J 37.8 J 22.0 J 21.7 J ND ug/L 04/08/14 --100 35.0 J 24.0 J 47.3 J 24.2 J 1.09 ug/L 10/08/14 1.0 100 23.2 J dry 22.6 J 24.1 J 3.14 J ug/L 04/08/15 1.0 100 22.9 J 24.0 J 30.9 J 26.4 J ND ug/L 10/28/15 1.0 100 28.3 J 23.5 J 28.7 J 33.6 J 1.20 J ug/L 04/05/16 1.0 100 18.0 J 24.9 J 27.3 J 23.5 J ND ug/L 10/04/16 1.0 100 43.3 J 46.3 J 37.4 J 26.4 J ND ug/L 04/03/17 1.0 100 18.2 J 22.2 J 28.7 J 22.5 J ND Beryllium ug/L 09/22/94 --2 ND ND ND ND ND Freshwater Acute SW Standard = 65 ug/L ug/L 11/08/94 --2 ND ND ND ND ND Freshwater Chronic SW Standard = 6.5 ug/L ug/L 01/18/95 --2 ND ND ND ND ND ug/L 04/23/96 --2 ND ND ND ND ND ug/L 06/17/97 --2 ND ND ND ND ND ug/L 10/16/97 --2 ND ND ND ND ND ug/L 04/21/98 --2 ND 21 ND ND ND ug/L 04/07/99 --2 ND ND ND ND ND ug/L 10/13/99 --2 ND ND ND ND ND ug/L 04/05/00 --2 ND ND ND ND ND ug/L 10/25/00 --2 ND ND ND ND ND ug/L 04/04/01 --2 ND ND ND ND ND ug/L 04/08/02 --2 ND ND ND ND ND ug/L 10/21/02 --2 ND ND ND ND ND ug/L 04/14/03 --2 ND ND ND ND ND ug/L 10/01/03 --2 ND ND ND ND ND ug/L 04/05/04 --2 ND ND ND ND ND ug/L 10/18/04 --2 ND ND ND ND ND ug/L 04/07/05 --2 ND ND ND ND ND ug/L 10/06/05 --2 ND ND ND ND ND ug/L 04/03/06 --2 ND ND ND ND ND ug/L 10/03/06 --2 ND ND ND ND ND ug/L 04/05/07 --1 ND ND ND ND ND ug/L 10/18/07 --1 ND ND ND ND ND ug/L 04/29/08 --1 ND ND ND ND ND ug/L 10/23/08 --1 Dry ND ND ND ND ug/L 04/07/09 --1 ND ND ND ND ND ug/L 10/19/09 --1 Dry 0.104 B Dry 0.127 B 0.174 J ug/L 04/29/10 --1 ND ND ND ND ND ug/L 10/13/10 --1 ND ND ND ND ND ug/L 04/11/11 --1 ND ND ND ND ND ug/L 10/03/11 --1 ND ND ND ND ND ug/L 04/10/12 --1 ND ND ND ND ND ug/L 10/15/12 --1 ND ND ND ND ND ug/L 04/09/13 --1 ND ND ND ND ND ug/L 10/08/13 --1 ND ND ND ND ND ug/L 04/08/14 --1 ND ND ND ND ND ug/L 10/08/14 0.10 1 ND dry ND ND ND ug/L 04/08/15 0.10 1 ND ND ND ND ND ug/L 10/28/15 0.10 1 ND ND ND ND ND ug/L 04/05/16 0.10 1 ND ND ND ND ND ug/L 10/04/16 0.10 1 ND ND ND ND ND ug/L 04/03/17 0.10 1 ND ND ND ND ND June 2017 3 of 11 141122017.101 0739612716.102 G:\PROJECTS\Waste Management\Randolph County\141122017 - Randolph Co LF - NC\Phase 101 - 1st SA WQM Event\600 CALCULATIONS\Tables April 2017.xlsx SW-1 SW-3 SW-2 SW-4 Downstream TABLE 6 Summary of Historical Surface Water Monitoring Results Closed Randolph County Landfill, Permit No. 76-01 BlanksDetected Monitoring Constituent/Parameter Units Date SWS Reporting Limit UpstreamMethod Detection Limit Cadmium ug/L 09/22/94 --1 ND ND ND ND ND Freshwater Acute SW Standard = 0.82 ug/L ug/L 11/08/94 --1 ND ND ND ND ND Freshwater Chronic SW Standard = 0.15 ug/L ug/L 01/18/95 --1 ND ND ND ND ND ug/L 04/23/96 --1 ND ND ND ND ND ug/L 06/17/97 --1 2 2 --ND ND ug/L 10/16/97 --1 ND ND ND ND ND ug/L 04/21/98 --1 1 ND ND ND ND ug/L 04/07/99 --1 ND ND ND ND ND ug/L 10/13/99 --1 ND ND ND ND ND ug/L 04/05/00 --1 ND ND ND ND ND ug/L 10/25/00 --1 ND ND ND ND ND ug/L 04/04/01 --1 ND ND ND ND ND ug/L 04/08/02 --1 ND ND ND ND ND ug/L 10/21/02 --1 4 ND ND ND ND ug/L 04/14/03 --1 2 ND ND ND ND ug/L 10/01/03 --1 ND ND 2 ND ND ug/L 04/05/04 --1 1 ND ND ND ND ug/L 10/18/04 --1 ND ND ND ND ND ug/L 04/07/05 --1 ND ND ND ND ND ug/L 10/06/05 --1 ND ND ND ND ND ug/L 04/03/06 --1 ND ND ND ND ND ug/L 10/03/06 --1 ND ND ND ND ND ug/L 04/05/07 --1 ND ND ND ND ND ug/L 10/18/07 --1 --0.2 J --0.7 J ND ug/L 04/29/08 --1 ND ND ND ND ND ug/L 10/23/08 --1 Dry ND ND ND ND ug/L 04/07/09 --1 0.10 J ND 0.13 J 0.12 J ND ug/L 10/19/09 --1 Dry ND Dry ND ND ug/L 04/29/10 --1 ND ND ND ND ND ug/L 10/13/10 --1 ND ND ND ND ND ug/L 04/11/11 --1 ND ND ND ND ND ug/L 10/03/11 --1 ND ND 0.625 J ND ND ug/L 04/10/12 --1 ND ND ND ND ND ug/L 10/15/12 --1 ND ND ND ND 0.433 J ug/L 04/09/13 --1 ND ND ND ND ND ug/L 10/08/13 --1 ND ND ND ND ND ug/L 04/08/14 --1 ND ND ND ND ND ug/L 10/08/14 0.36 1 ND dry ND 0.889 J ND ug/L 04/08/15 0.36 1 ND 0.838 B ND 2.36 0.427 J ug/L 10/28/15 0.36 1 ND ND ND ND ND ug/L 04/05/16 0.36 1 ND ND ND ND ND ug/L 10/04/16 0.36 1 ND ND ND ND ND ug/L 04/03/17 0.36 1 ND ND ND ND ND Chromium ug/L 09/22/94 --10 ND ND ND ND ND Freshwater Acute SW Standard = 180 ug/L ug/L 11/08/94 --10 ND ND ND ND ND Freshwater Chronic SW Standard = 24 ug/L ug/L 01/18/95 --10 ND ND ND ND ND ug/L 04/23/96 --10 ND ND ND ND ND ug/L 06/17/97 --10 ND ND ND ND ND ug/L 10/16/97 --10 ND ND ND ND ND ug/L 04/21/98 --10 20 ND ND 15 ND ug/L 04/07/99 --10 ND ND ND ND ND ug/L 10/13/99 --10 ND ND ND ND ND ug/L 04/05/00 --10 ND ND ND ND ND ug/L 10/25/00 --10 22 ND ----ND ug/L 04/04/01 --10 ND ND ND ND ND ug/L 04/08/02 --10 ND ND ND ND ND ug/L 10/21/02 --10 ND ND ND ND ND ug/L 04/14/03 --10 ND ND ND ND ND ug/L 10/01/03 --10 ND ND 121 ND ND ug/L 04/05/04 --10 ND ND ND ND ND ug/L 10/18/04 --10 ND ND ND ND ND ug/L 04/07/05 --10 ND ND ND ND ND ug/L 10/06/05 --10 ND ND ND ND ND ug/L 04/03/06 --10 ND ND ND ND ND ug/L 10/03/06 --10 ND ND ND ND ND ug/L 04/05/07 --10 ND ND ND ND ND ug/L 10/18/07 --10 --5.6 J --2.3 J ND ug/L 04/29/08 --10 2.7 J ND 4.6 J ND ND ug/L 10/23/08 --10 Dry ND ND ND ND ug/L 04/07/09 --10 ND ND ND ND ND ug/L 10/19/09 --10 Dry 1.64 J Dry 1.58 J ND ug/L 04/29/10 --10 1.21 J 1.36 J ND ND ND ug/L 10/13/10 --10 6.61 J 4.10 J ND 2.58 J ND ug/L 04/11/11 --10 5.92 J 2.02 J 4.49 J 1.90 J ND ug/L 10/03/11 --10 ND ND ND ND ND ug/L 04/10/12 --10 1.13 J ND 1.42 J ND ND ug/L 10/15/12 --10 ND ND ND ND ND ug/L 04/09/13 --10 ND 1.86 J ND ND ND ug/L 10/08/13 --10 ND ND ND ND ND ug/L 04/08/14 --10 2.79 J ND ND ND ND ug/L 10/08/14 1.4 10 ND dry 2.55 J 2.38 J ND ug/L 04/08/15 1.4 10 ND ND ND ND ND ug/L 10/28/15 1.4 10 ND ND ND ND ND ug/L 04/05/16 1.4 10 ND ND ND ND ND ug/L 10/04/16 1.4 10 ND 1.42 J ND 1.77 J ND ug/L 04/03/17 1.1 10 ND ND ND ND 4.45 J June 2017 4 of 11 141122017.101 0739612716.102 G:\PROJECTS\Waste Management\Randolph County\141122017 - Randolph Co LF - NC\Phase 101 - 1st SA WQM Event\600 CALCULATIONS\Tables April 2017.xlsx SW-1 SW-3 SW-2 SW-4 Downstream TABLE 6 Summary of Historical Surface Water Monitoring Results Closed Randolph County Landfill, Permit No. 76-01 BlanksDetected Monitoring Constituent/Parameter Units Date SWS Reporting Limit UpstreamMethod Detection Limit Cobalt ug/L 09/22/94 --10 ND ND 37 ND ND No SW Standard ug/L 11/08/94 --10 ND --37 --ND ug/L 01/18/95 --10 ND ND ND ND ND ug/L 04/23/96 --10 ND ND ND ND ND ug/L 06/17/97 --10 ND ND ND ND ND ug/L 10/16/97 --10 ND ND 17 ND ND ug/L 04/21/98 --10 ND ND ND 13 ND ug/L 04/07/99 --10 ND ND ND ND ND ug/L 10/13/99 --10 ND ND ND ND ND ug/L 04/05/00 --10 ND ND ND ND ND ug/L 10/25/00 --10 29 ND ----ND ug/L 04/04/01 --10 ND ND ND ND ND ug/L 04/08/02 --10 ND ND ND ND ND ug/L 10/21/02 --10 ND ND ND ND ND ug/L 04/14/03 --10 ND ND ND ND ND ug/L 10/01/03 --10 ND ND 112 ND ND ug/L 04/05/04 --10 ND ND ND ND ND ug/L 10/18/04 --10 ND ND 12 ND ND ug/L 04/07/05 --10 ND ND ND ND ND ug/L 10/06/05 --10 ND ND ND ND ND ug/L 04/03/06 --10 ND ND ND ND ND ug/L 10/03/06 --10 ND ND ND ND ND ug/L 04/05/07 --10 ND ND ND ND ND ug/L 10/18/07 --10 --1.5 J --1.0 J ND ug/L 04/29/08 --10 5.8 J ND 5.2 J ND ND ug/L 10/23/08 --10 Dry ND 2.6 J ND ND ug/L 04/07/09 --10 ND ND 1.7 J 0.9 J ND ug/L 10/19/09 --10 Dry ND Dry ND ND ug/L 04/29/10 --10 2.59 J 1.35 J 2.10 J ND ND ug/L 10/13/10 --10 12.9 ND 10.8 1.86 J ND ug/L 04/11/11 --10 2.58 J ND ND ND ND ug/L 10/03/11 --10 ND 1.13 J 1.11 J ND ND ug/L 04/10/12 --10 1.70 J ND ND ND ND ug/L 10/15/12 --10 ND 1.34 J ND 1.17 J ND ug/L 04/09/13 --10 1.26 J ND ND ND ND ug/L 10/08/13 --10 ND ND ND ND ND ug/L 04/08/14 --10 2.73 J ND 1.70 J ND ND ug/L 10/08/14 1.1 10 ND dry ND ND ND ug/L 04/08/15 1.1 10 ND ND ND ND ND ug/L 10/28/15 1.1 10 1.90 J 1.11 J ND 1.43 J ND ug/L 04/05/16 1.1 10 ND ND 1.22 J ND ND ug/L 10/04/16 1.1 10 3.74 J 1.21 J 1.11 J ND ND ug/L 04/03/17 1.1 10 ND 1.13 J ND ND ND Copper ug/L 09/22/94 --200 ND ND ND ND ND Freshwater Acute SW Standard = 3.6 ug/L ug/L 11/08/94 --200 ND ND ND ND ND Freshwater Chronic SW Standard = 2.7 ug/L ug/L 01/18/95 --200 ND ND ND ND ND ug/L 04/23/96 --200 ND ND ND ND ND ug/L 06/17/97 --200 ND ND ND ND ND ug/L 10/16/97 --200 ND ND ND ND ND ug/L 04/21/98 --200 ND ND ND ND ND ug/L 04/07/99 --200 ND ND ND ND ND ug/L 10/13/99 --200 ND ND ND ND ND ug/L 04/05/00 --200 ND ND ND ND ND ug/L 10/25/00 --200 ND ND ND ND ND ug/L 04/04/01 --200 ND ND ND ND ND ug/L 04/08/02 --200 ND ND ND ND ND ug/L 10/21/02 --200 ND ND ND ND ND ug/L 04/14/03 --200 ND ND ND ND ND ug/L 10/01/03 --200 ND ND ND ND ND ug/L 04/05/04 --200 ND ND ND ND ND ug/L 10/18/04 --200 ND ND ND ND ND ug/L 04/07/05 --200 ND ND ND ND ND ug/L 10/06/05 --200 ND ND ND ND ND ug/L 04/03/06 --200 ND ND ND ND ND ug/L 10/03/06 --200 ND ND ND ND ND ug/L 04/05/07 --10 ND ND ND ND ND ug/L 10/18/07 --10 5.4 J ND 3.7 J ND 0.7 J ug/L 04/29/08 --10 6.0 J 5.2 J 9.1 J 0.9 B 0.9 J ug/L 10/23/08 --10 Dry ND 2.1 J ND ND ug/L 04/07/09 --10 ND 1.31 J ND 1.74 J ND ug/L 10/19/09 --10 Dry ND Dry ND 1.60 J ug/L 04/29/10 --10 ND 2.90 J ND 1.97 J ND ug/L 10/13/10 --10 12.7 3.32 B 4.34 B 4.68 B 1.60 J ug/L 04/11/11 --10 3.54 J 3.47 J 3.56 J 4.27 J ND ug/L 10/03/11 --10 ND 4.85 J 3.35 J ND ND ug/L 04/10/12 --10 ND ND 3.22 J 2.10 J ND ug/L 10/15/12 --10 ND ND ND ND ND ug/L 04/09/13 --10 1.72 J 3.49 J ND 1.72 J ND ug/L 10/08/13 --10 ND ND ND 1.80 J ND ug/L 04/08/14 --10 3.04 J 2.38 J ND 2.35 J ND ug/L 10/08/14 1.6 10 2.90 J dry 2.51 J 5.56 J ND ug/L 04/08/15 1.6 10 ND 6.03 B ND 8.15 B 3.01 J ug/L 10/28/15 1.6 10 ND ND ND 1.68 J ND ug/L 04/05/16 1.6 10 ND 3.52 B ND 2.87 B 3.64 J ug/L 10/04/16 1.6 10 3.54 B 5.42 B 3.00 B 6.03 B 5.15 J ug/L 04/03/17 0.87 10 ND 4.76 B ND 5.01 B 3.21 J June 2017 5 of 11 141122017.101 0739612716.102 G:\PROJECTS\Waste Management\Randolph County\141122017 - Randolph Co LF - NC\Phase 101 - 1st SA WQM Event\600 CALCULATIONS\Tables April 2017.xlsx SW-1 SW-3 SW-2 SW-4 Downstream TABLE 6 Summary of Historical Surface Water Monitoring Results Closed Randolph County Landfill, Permit No. 76-01 BlanksDetected Monitoring Constituent/Parameter Units Date SWS Reporting Limit UpstreamMethod Detection Limit Lead ug/L 09/22/94 --10 ND ND ND ND ND Freshwater Acute SW Standard = 14 ug/L ug/L 11/08/94 --10 ND ND ND ND ND Freshwater Chronic SW Standard = 0.54 ug/L ug/L 01/18/95 --10 ND ND ND ND ND ug/L 04/23/96 --10 ND ND ND ND ND ug/L 06/17/97 --10 ND 15 --11 ND ug/L 10/16/97 --10 ND ND ND ND ND ug/L 04/21/98 --10 ND ND ND 16 ND ug/L 04/07/99 --10 ND ND ND ND ND ug/L 10/13/99 --10 ND ND ND ND ND ug/L 04/05/00 --10 ND ND ND ND ND ug/L 10/25/00 --10 ND ND ND ND ND ug/L 04/04/01 --10 ND ND 12 ND ND ug/L 04/08/02 --10 ND ND ND ND ND ug/L 10/21/02 --10 ND ND ND ND ND ug/L 04/14/03 --10 ND ND ND ND ND ug/L 10/01/03 --10 ND ND 41 ND ND ug/L 04/05/04 --10 ND ND ND ND ND ug/L 10/18/04 --10 ND ND ND ND ND ug/L 04/07/05 --10 ND ND ND ND ND ug/L 10/06/05 --10 ND ND ND ND ND ug/L 04/03/06 --10 ND ND ND ND ND ug/L 10/03/06 --10 ND ND ND ND ND ug/L 04/05/07 --10 ND ND ND ND ND ug/L 10/18/07 --10 --0.6 J --0.6 J ND ug/L 04/29/08 --10 2.6 J 3.8 J ND ND ND ug/L 10/23/08 --10 Dry ND ND ND ND ug/L 04/07/09 --10 ND ND ND ND ND ug/L 10/19/09 --10 Dry ND Dry ND ND ug/L 04/29/10 --10 ND ND ND ND ND ug/L 10/13/10 --10 2.51 J ND 2.87 J ND ND ug/L 04/11/11 --10 ND ND ND ND ND ug/L 10/03/11 --10 ND 2.26 J 2.16 J ND ND ug/L 04/10/12 --10 2.55 B 2.03 B 2.19 B 2.39 B 2.22 J ug/L 10/15/12 --10 ND ND ND ND ND ug/L 04/09/13 --10 ND ND ND ND ND ug/L 10/08/13 --10 ND ND ND ND ND ug/L 04/08/14 --10 ND ND ND 2.15 J ND ug/L 10/08/14 2.1 10 ND dry ND ND ND ug/L 04/08/15 2.1 10 ND ND ND ND ND ug/L 10/28/15 2.1 10 ND ND ND ND ND ug/L 04/05/16 3.1 10 ND ND ND ND ND ug/L 10/04/16 3.1 10 ND ND ND ND ND ug/L 04/03/17 3.1 10 ND ND ND ND ND Nickel ug/L 09/22/94 --50 ND ND ND ND ND Freshwater Acute SW Standard = 140 ug/L ug/L 11/08/94 --50 ND ND ND ND ND Freshwater Chronic SW Standard = 16 ug/L ug/L 01/18/95 --50 ND ND ND ND ND ug/L 04/23/96 --50 ND ND ND ND ND ug/L 06/17/97 --50 ND ND ND ND ND ug/L 10/16/97 --50 ND ND ND ND ND ug/L 04/21/98 --50 ND ND ND ND ND ug/L 04/07/99 --50 ND ND ND ND ND ug/L 10/13/99 --50 ND ND ND ND ND ug/L 04/05/00 --50 ND ND ND ND ND ug/L 10/25/00 --50 ND ND ND ND ND ug/L 04/04/01 --50 ND ND ND ND ND ug/L 04/08/02 --50 ND ND ND ND ND ug/L 10/21/02 --50 ND ND ND ND ND ug/L 04/14/03 --50 ND ND ND ND ND ug/L 10/01/03 --50 ND ND 68 ND ND ug/L 04/05/04 --50 ND ND ND ND ND ug/L 10/18/04 --50 ND ND ND ND ND ug/L 04/07/05 --50 ND ND ND ND ND ug/L 10/06/05 --50 ND ND ND ND ND ug/L 04/03/06 --50 ND ND ND ND ND ug/L 10/03/06 --50 ND ND ND ND ND ug/L 04/05/07 --50 ND ND ND ND ND ug/L 10/18/07 --50 --2.7 J --1.9 J ND ug/L 04/29/08 --50 3.2 J ND 2.5 J ND ND ug/L 10/23/08 --50 Dry ND ND ND ND ug/L 04/07/09 --50 ND 1.0 J ND 1.0 J ND ug/L 10/19/09 --50 Dry ND Dry ND ND ug/L 04/29/10 --50 ND 7.03 J ND ND ND ug/L 10/13/10 --50 4.05 J ND ND ND ND ug/L 04/11/11 --50 17.1 B 4.55 B 17.5 B 4.86 B 3.53 J ug/L 10/03/11 --50 ND ND ND ND ND ug/L 04/10/12 --50 ND ND ND ND ND ug/L 10/15/12 --50 ND ND ND ND ND ug/L 04/09/13 --50 ND ND ND ND ND ug/L 10/08/13 --50 ND ND ND ND ND ug/L 04/08/14 --50 ND ND 2.07 J ND ND ug/L 10/08/14 1.8 50 ND dry ND ND ND ug/L 04/08/15 1.8 50 ND ND ND ND ND ug/L 10/28/15 1.8 50 ND ND ND ND ND ug/L 04/05/16 2.2 50 ND ND ND ND ND ug/L 10/04/16 2.2 50 ND ND ND ND ND ug/L 04/03/17 2.2 50 ND ND ND ND ND June 2017 6 of 11 141122017.101 0739612716.102 G:\PROJECTS\Waste Management\Randolph County\141122017 - Randolph Co LF - NC\Phase 101 - 1st SA WQM Event\600 CALCULATIONS\Tables April 2017.xlsx SW-1 SW-3 SW-2 SW-4 Downstream TABLE 6 Summary of Historical Surface Water Monitoring Results Closed Randolph County Landfill, Permit No. 76-01 BlanksDetected Monitoring Constituent/Parameter Units Date SWS Reporting Limit UpstreamMethod Detection Limit Selenium ug/L 09/22/94 --20 ND ND ND ND ND Freshwater Acute SW Standard = 5 ug/L ug/L 11/08/94 --20 ND ND ND ND ND Freshwater Chronic SW Standard = 5 ug/L ug/L 01/18/95 --20 ND ND ND ND ND ug/L 04/23/96 --20 ND ND ND ND ND ug/L 06/17/97 --20 ND ND ND ND ND ug/L 10/16/97 --20 ND ND ND ND ND ug/L 04/21/98 --20 ND ND ND ND ND ug/L 04/07/99 --20 ND ND ND ND ND ug/L 10/13/99 --20 ND ND ND ND ND ug/L 04/05/00 --20 ND ND ND ND ND ug/L 10/25/00 --20 ND ND ND ND ND ug/L 04/04/01 --20 ND ND ND ND ND ug/L 04/08/02 --20 ND ND ND ND ND ug/L 10/21/02 --20 ND ND ND ND ND ug/L 04/14/03 --20 ND ND ND ND ND ug/L 10/01/03 --20 ND ND ND ND ND ug/L 04/05/04 --20 ND ND ND ND ND ug/L 10/18/04 --20 ND ND ND ND ND ug/L 04/07/05 --20 ND ND ND ND ND ug/L 10/06/05 --20 ND ND ND ND ND ug/L 04/03/06 --20 ND ND ND ND ND ug/L 10/03/06 --20 ND ND ND ND ND ug/L 04/05/07 --10 ND ND ND ND ND ug/L 10/18/07 --10 --0.6 J ----ND ug/L 04/29/08 --10 ND ND ND 2.7 B 3.9 J ug/L 10/23/08 --10 Dry ND ND ND ND ug/L 04/07/09 --10 ND ND ND ND 3.7 J ug/L 10/19/09 --10 Dry ND Dry ND ND ug/L 04/29/10 --10 ND ND ND ND ND ug/L 10/13/10 --10 0.929 J ND ND ND ND ug/L 04/11/11 --10 ND ND ND ND 2.85 J ug/L 10/03/11 --10 ND ND ND ND ND ug/L 04/10/12 --10 ND ND ND ND ND ug/L 10/15/12 --10 ND ND ND ND ND ug/L 04/09/13 --10 ND ND ND ND ND ug/L 10/08/13 --10 ND ND ND ND ND ug/L 04/08/14 --10 ND ND ND ND ND ug/L 10/08/14 5.0 10 ND dry ND ND ND ug/L 04/08/15 5.0 10 ND ND ND ND ND ug/L 10/28/15 5.0 10 ND ND ND ND ND ug/L 04/05/16 6.2 10 ND ND ND ND ND ug/L 10/04/16 6.2 10 ND ND ND ND ND ug/L 04/03/17 6.2 10 ND ND ND ND ND Silver ug/L 09/22/94 --10 ND ND ND ND ND Freshwater Acute SW Standard = 30 ug/L ug/L 11/08/94 --10 ND ND ND ND ND Freshwater Chronic SW Standard = 0.06 ug/L ug/L 01/18/95 --10 ND ND ND ND ND ug/L 04/23/96 --10 ND ND ND ND ND ug/L 06/17/97 --10 ND ND ND ND ND ug/L 10/16/97 --10 ND ND ND ND ND ug/L 04/21/98 --10 ND ND ND ND ND ug/L 04/07/99 --10 ND ND ND ND ND ug/L 10/13/99 --10 ND ND ND ND ND ug/L 04/05/00 --10 ND ND ND ND ND ug/L 10/25/00 --10 ND ND ND ND ND ug/L 04/04/01 --10 ND ND ND ND ND ug/L 04/08/02 --10 ND ND ND ND ND ug/L 10/21/02 --10 ND ND ND ND ND ug/L 04/14/03 --10 ND ND ND ND ND ug/L 10/01/03 --10 ND ND ND ND ND ug/L 04/05/04 --10 ND ND ND ND ND ug/L 10/18/04 --10 ND ND ND ND ND ug/L 04/07/05 --10 ND ND ND ND ND ug/L 10/06/05 --10 ND ND ND ND ND ug/L 04/03/06 --10 ND ND ND ND ND ug/L 10/03/06 --10 ND ND ND ND ND ug/L 04/05/07 --10 ND ND ND ND ND ug/L 10/18/07 --10 --ND --ND ND ug/L 04/29/08 --10 ND ND ND ND ND ug/L 10/23/08 --10 Dry ND ND ND ND ug/L 04/07/09 --10 1.6 B 1.7 B 1.7 B 1.2 B 1.4 J ug/L 10/19/09 --10 Dry ND Dry ND ND ug/L 04/29/10 --10 ND ND ND ND ND ug/L 10/13/10 --10 ND ND ND ND ND ug/L 04/11/11 --10 ND ND ND ND ND ug/L 10/03/11 --10 ND ND ND ND ND ug/L 04/10/12 --10 ND ND ND ND ND ug/L 10/15/12 --10 ND ND ND ND ND ug/L 04/09/13 --10 2.04 B 1.98 B 1.94 B ND 2.16 J ug/L 10/08/13 --10 ND ND ND ND ND ug/L 04/08/14 --10 ND ND 2.86 B ND 3.31 J ug/L 10/08/14 1.9 10 ND dry ND ND 2.42 J ug/L 04/08/15 1.9 10 ND ND ND ND ND ug/L 10/28/15 1.9 10 ND ND ND ND ND ug/L 04/05/16 1.9 10 ND ND ND ND ND ug/L 10/04/16 1.9 10 ND ND ND ND ND ug/L 04/03/17 0.74 10 ND 2.30 J ND 2.60 J ND June 2017 7 of 11 141122017.101 0739612716.102 G:\PROJECTS\Waste Management\Randolph County\141122017 - Randolph Co LF - NC\Phase 101 - 1st SA WQM Event\600 CALCULATIONS\Tables April 2017.xlsx SW-1 SW-3 SW-2 SW-4 Downstream TABLE 6 Summary of Historical Surface Water Monitoring Results Closed Randolph County Landfill, Permit No. 76-01 BlanksDetected Monitoring Constituent/Parameter Units Date SWS Reporting Limit UpstreamMethod Detection Limit Thallium ug/L 09/22/94 --10 ND ND ND ND ND No SW Standard ug/L 11/08/94 --10 ND ND ND ND ND ug/L 01/18/95 --10 ND ND ND ND ND ug/L 04/23/96 --10 ND ND ND ND ND ug/L 06/17/97 --10 ND ND ND ND ND ug/L 10/16/97 --10 ND ND ND ND ND ug/L 04/21/98 --10 ND ND ND ND ND ug/L 04/07/99 --10 ND ND ND ND ND ug/L 10/13/99 --10 ND ND ND ND ND ug/L 04/05/00 --100 ND ND ND ND ND ug/L 10/25/00 --10 ND ND ND ND ND ug/L 04/04/01 --10 ND ND ND ND ND ug/L 04/08/02 --10 ND ND ND ND ND ug/L 10/21/02 --10 ND ND ND ND ND ug/L 04/14/03 --10 ND ND ND ND ND ug/L 10/01/03 --10 ND ND ND ND ND ug/L 04/05/04 --10 ND ND ND ND ND ug/L 10/18/04 --10 ND ND ND ND ND ug/L 04/07/05 --10 ND ND ND ND ND ug/L 10/06/05 --10 ND ND ND ND ND ug/L 04/03/06 --10 ND ND ND ND ND ug/L 10/03/06 --10 ND ND ND ND ND ug/L 04/05/07 --5.5 ND ND ND ND ND ug/L 10/18/07 --5.5 ND ND ND ND ND ug/L 04/29/08 --5.5 0.037 J ND ND ND ND ug/L 10/23/08 --5.5 Dry ND ND ND ND ug/L 04/07/09 --5.5 0.039 B 0.045 B 0.039 B 0.050 B 0.052 J ug/L 10/19/09 --5.5 Dry ND Dry ND ND ug/L 04/29/10 --5.5 ND ND ND ND ND ug/L 10/13/10 --5.5 ND ND ND ND ND ug/L 04/11/11 --5.5 ND ND ND ND ND ug/L 10/03/11 --5.5 ND ND ND ND ND ug/L 04/10/12 --5.5 ND ND ND ND ND ug/L 10/15/12 --5.5 ND ND ND ND ND ug/L 04/09/13 --5.5 ND ND ND ND ND ug/L 10/08/13 --5.5 ND ND ND ND ND ug/L 04/08/14 --5.5 ND ND ND ND ND ug/L 10/08/14 0.11 5.5 ND dry ND ND ND ug/L 04/08/15 0.11 5.5 ND ND ND ND ND ug/L 10/28/15 0.11 5.5 ND ND ND ND ND ug/L 04/05/16 0.11 5.5 ND ND ND ND ND ug/L 10/04/16 0.11 5.5 ND ND ND ND ND ug/L 04/03/17 0.11 5.5 0.156 J 0.229 J 0.216 J 0.201 J ND Vanadium ug/L 09/22/94 --40 ND ND ND ND ND No SW Standard ug/L 11/08/94 --40 ND ND ND ND ND ug/L 01/18/95 --40 ND ND ND ND ND ug/L 04/23/96 --40 ND ND ND ND ND ug/L 06/17/97 --40 ND ND ND ND ND ug/L 10/16/97 --40 ND ND ND ND ND ug/L 04/21/98 --40 ND ND ND ND ND ug/L 04/07/99 --40 ND ND ND ND ND ug/L 10/13/99 --40 ND ND ND ND ND ug/L 04/05/00 --40 ND ND ND ND ND ug/L 10/25/00 --40 57 ND ND ND ND ug/L 04/04/01 --40 ND ND ND ND ND ug/L 04/08/02 --40 ND ND ND ND ND ug/L 10/21/02 --40 ND ND ND ND ND ug/L 04/14/03 --40 ND ND ND ND ND ug/L 10/01/03 --40 ND ND 351 ND ND ug/L 04/05/04 --40 ND ND ND ND ND ug/L 10/18/04 --40 ND ND ND ND ND ug/L 04/07/05 --40 ND ND ND ND ND ug/L 10/06/05 --40 ND ND ND ND ND ug/L 04/03/06 --40 ND ND ND ND ND ug/L 10/03/06 --40 ND ND ND ND ND ug/L 04/05/07 --40 ND ND ND ND ND ug/L 10/18/07 --25 --1.8 J --2.3 J ND ug/L 04/29/08 --25 7.9 J 3.8 J 20 J ND ND ug/L 10/23/08 --25 Dry ND ND ND ND ug/L 04/07/09 --25 1.3 J 1.2 J ND 1.4 J ND ug/L 10/19/09 --25 Dry 1.86 J Dry 1.51 J ND ug/L 04/29/10 --25 4.82 J 2.21 J ND 1.70 J ND ug/L 10/13/10 --25 27.2 1.71 J 9.78 J 4.14 J ND ug/L 04/11/11 --25 5.17 J 2.06 J 2.24 J 2.66 J ND ug/L 10/03/11 --25 1.80 J ND 2.35 J 1.82 J ND ug/L 04/10/12 --25 2.67 J ND 2.56 J 1.79 J ND ug/L 10/15/12 --25 2.64 J 1.62 J ND 1.68 J ND ug/L 04/09/13 --25 4.04 J 1.87 J ND ND ND ug/L 10/08/13 --25 1.92 J ND ND ND ND ug/L 04/08/14 --25 6.83 J 2.94 J 3.72 J 3.03 J ND ug/L 10/08/14 1.4 25 ND dry ND ND ND ug/L 04/08/15 1.4 25 ND ND ND ND ND ug/L 10/28/15 1.4 25 7.18 J 2.73 J 3.63 J 2.63 J ND ug/L 04/05/16 1.4 25 2.04 J 3.33 J ND 2.92 J ND ug/L 10/04/16 1.4 25 2.43 J 2.90 J ND 3.99 J ND ug/L 04/03/17 1.4 25 ND ND 0.177 J ND ND June 2017 8 of 11 141122017.101 0739612716.102 G:\PROJECTS\Waste Management\Randolph County\141122017 - Randolph Co LF - NC\Phase 101 - 1st SA WQM Event\600 CALCULATIONS\Tables April 2017.xlsx SW-1 SW-3 SW-2 SW-4 Downstream TABLE 6 Summary of Historical Surface Water Monitoring Results Closed Randolph County Landfill, Permit No. 76-01 BlanksDetected Monitoring Constituent/Parameter Units Date SWS Reporting Limit UpstreamMethod Detection Limit Zinc ug/L 09/22/94 --50 62 ND ND ND ND Freshwater Acute SW Standard = 36 ug/L ug/L 11/08/94 --50 ND ND ND ND ND Freshwater Chronic SW Standard = 36 ug/L ug/L 01/18/95 --50 ND ND ND ND ND ug/L 04/23/96 --50 ND ND ND ND ND ug/L 06/17/97 --50 85 B 53 B --69 B 72 ug/L 10/16/97 --50 ND ND ND ND ND ug/L 04/21/98 --50 175 ND ND ND ND ug/L 04/07/99 --50 ND ND ND ND ND ug/L 10/13/99 --50 121 ND ND ND ND ug/L 04/05/00 --50 207 ND ND ND ND ug/L 10/25/00 --50 271 ND --ND ND ug/L 04/04/01 --50 258 ND ND ND ND ug/L 04/08/02 --50 87 ND ND ND ND ug/L 10/21/02 --50 ND ND ND ND ND ug/L 04/14/03 --50 235 ND ND ND ND ug/L 10/01/03 --50 201 ND 455 ND ND ug/L 04/05/04 --50 362 ND ND ND ND ug/L 10/18/04 --50 ND ND ND ND ND ug/L 04/07/05 --50 304 ND ND ND ND ug/L 10/06/05 --50 ND ND ND ND ND ug/L 04/03/06 --50 122 ND ND ND ND ug/L 10/03/06 --50 ND ND ND ND ND ug/L 04/05/07 --10 192 ND 13 ND ND ug/L 10/18/07 --50 --18 --13 1.5 J ug/L 04/29/08 --10 21.4 B 23.5 B 22.6 B 5.2 B 122 ug/L 10/23/08 --10 Dry ND ND ND ND ug/L 04/07/09 --10 4.9 B 6.3 B 32.0 6.9 B 4.2 J ug/L 10/19/09 --10 Dry 7.91 J Dry 5.11 J ND ug/L 04/29/10 --10 4.45 J 13.0 12.1 6.14 J ND ug/L 10/13/10 --10 39.6 5.56 J 7.47 J 18.5 ND ug/L 04/11/11 --10 5.69 J 4.59 J 6.30 J 4.74 J ND ug/L 10/03/11 --10 ND 17.2 8.93 J 4.01 J ND ug/L 04/10/12 --10 5.19 J 4.85 J 8.52 J 4.75 J ND ug/L 10/15/12 --10 ND ND ND ND ND ug/L 04/09/13 --10 4.52 J ND 4.69 J 4.00 J ND ug/L 10/08/13 --10 ND 4.59 J 3.88 J 3.80 J ND ug/L 04/08/14 --10 7.57 J ND 22.0 ND ND ug/L 10/08/14 3.8 10 10.3 dry 7.25 J 11.0 ND ug/L 04/08/15 3.8 10 5.47 J 15.5 ND 19.5 ND ug/L 10/28/15 3.8 10 4.78 J ND ND 41.6 ND ug/L 04/05/16 4.4 10 ND 23.8 ND ND ND ug/L 10/04/16 4.4 10 ND 12.9 ND 5.11 J ND ug/L 04/03/17 4.4 10 ND ND ND ND ND Acetone ug/L 09/22/94 --100 ND ND ND ND ND Freshwater SW Standard = 2000 ug/L ug/L 11/08/94 --100 ND ND ND ND ND ug/L 01/18/95 --100 ND ND ND ND ND ug/L 04/23/96 --100 ND ND ND ND ND ug/L 06/17/97 --100 ND ND ND ND ND ug/L 10/16/97 --100 ND ND ND ND ND ug/L 04/21/98 --100 ND ND ND ND ND ug/L 04/07/99 --100 ND ND ND ND ND ug/L 10/13/99 --100 ND ND ND ND ND ug/L 04/05/00 --100 ND ND ND ND ND ug/L 10/25/00 --100 ND ND ND ND ND ug/L 04/04/01 --100 ND ND ND ND ND ug/L 04/08/02 --100 ND ND ND ND ND ug/L 10/21/02 --100 ND ND ND ND ND ug/L 04/14/03 --100 ND ND ND ND ND ug/L 10/01/03 --100 ND ND ND ND ND ug/L 04/05/04 --100 ND ND ND ND ND ug/L 10/18/04 --100 ND ND ND ND ND ug/L 04/07/05 --100 ND ND ND ND ND ug/L 10/06/05 --100 ND ND ND ND ND ug/L 04/03/06 --100 ND ND ND ND ND ug/L 10/03/06 --100 ND ND ND ND ND ug/L 04/05/07 --100 ND ND ND ND ND ug/L 10/18/07 --100 --2.3 J --1.8 J ND ug/L 04/29/08 --100 3.9 B ND ND 10 B 2.7 J ug/L 10/23/08 --100 Dry 5.9 B 6.2 B 5.1 B 5.3 J ug/L 04/07/09 --100 ND ND ND ND ND ug/L 10/19/09 --100 Dry ND Dry ND 8.2 J ug/L 04/29/10 --100 ND ND ND ND ND ug/L 10/13/10 --100 ND ND ND ND ND ug/L 04/11/11 --100 ND ND ND ND ND ug/L 10/03/11 --100 ND ND ND ND ND ug/L 04/10/12 --100 ND ND ND ND ND ug/L 10/15/12 --100 ND ND ND ND ND ug/L 04/09/13 --100 ND ND ND ND ND ug/L 10/08/13 --100 ND ND ND ND ND ug/L 04/08/14 --100 ND ND ND ND ND ug/L 10/08/14 12 100 ND dry ND ND ND ug/L 04/08/15 12 100 ND 3.2 J ND ND ND ug/L 10/28/15 12 100 ND ND ND ND ND ug/L 04/05/16 12 100 ND ND ND ND ND ug/L 10/04/16 10 100 ND ND ND ND ND ug/L 04/03/17 10 100 ND ND ND ND ND June 2017 9 of 11 141122017.101 0739612716.102 G:\PROJECTS\Waste Management\Randolph County\141122017 - Randolph Co LF - NC\Phase 101 - 1st SA WQM Event\600 CALCULATIONS\Tables April 2017.xlsx SW-1 SW-3 SW-2 SW-4 Downstream TABLE 6 Summary of Historical Surface Water Monitoring Results Closed Randolph County Landfill, Permit No. 76-01 BlanksDetected Monitoring Constituent/Parameter Units Date SWS Reporting Limit UpstreamMethod Detection Limit Bromodichloromethane ug/L 09/22/94 --5 ND ND ND ND ND No SW Standard ug/L 11/08/94 --5 ND ND ND ND ND ug/L 01/18/95 --5 ND ND ND ND ND ug/L 04/23/96 --5 ND ND ND ND ND ug/L 06/17/97 --5 ND ND ND ND ND ug/L 10/16/97 --5 ND ND ND ND ND ug/L 04/21/98 --5 ND ND ND ND ND ug/L 04/07/99 --5 ND ND ND ND ND ug/L 10/13/99 --5 ND ND ND ND ND ug/L 04/05/00 --5 ND ND ND ND ND ug/L 10/25/00 --5 ND ND ND ND ND ug/L 04/04/01 --5 ND ND ND ND ND ug/L 04/08/02 --5 ND ND ND ND ND ug/L 10/21/02 --5 ND ND ND ND ND ug/L 04/14/03 --5 ND ND ND ND ND ug/L 10/01/03 --5 ND ND ND ND ND ug/L 04/05/04 --5 ND ND ND ND ND ug/L 10/18/04 --5 ND ND ND ND ND ug/L 04/07/05 --5 ND ND ND ND ND ug/L 10/06/05 --5 ND ND ND ND ND ug/L 04/03/06 --5 ND ND ND ND ND ug/L 10/03/06 --5 ND ND ND ND ND ug/L 04/05/07 --3 ND ND ND ND ND ug/L 10/18/07 --1 --1.2 J --0.3 J ND ug/L 04/29/08 --1 ND ND ND ND ND ug/L 10/23/08 --1 Dry ND ND ND ND ug/L 04/07/09 --1 ND ND ND ND ND ug/L 10/19/09 --1 Dry ND Dry ND ND ug/L 04/29/10 --1 ND ND ND ND ND ug/L 10/13/10 --1 ND 3.3 ND ND ND ug/L 04/11/11 --1 ND ND ND ND ND ug/L 10/03/11 --1 ND ND ND ND ND ug/L 04/10/12 --1 ND ND ND ND ND ug/L 10/15/12 --1 ND ND ND ND ND ug/L 04/09/13 --1 ND ND ND ND ND ug/L 10/08/13 --1 ND ND ND ND ND ug/L 04/08/14 --1 ND ND ND ND ND ug/L 10/08/14 0.17 1 ND dry ND ND ND ug/L 04/08/15 0.17 1 ND ND ND ND ND ug/L 10/28/15 0.17 1 ND ND ND ND ND ug/L 04/05/16 0.17 1 ND ND ND ND ND ug/L 10/04/16 0.17 1 ND 0.79 J ND ND ND ug/L 04/03/17 0.17 1 ND ND ND ND ND Chloroform ug/L 09/22/94 --5 ND ND ND ND ND No SW Standard ug/L 11/08/94 --5 ND ND ND ND ND ug/L 01/18/95 --5 ND ND ND ND ND ug/L 04/23/96 --5 ND ND ND ND ND ug/L 06/17/97 --5 ND ND ND ND ND ug/L 10/16/97 --5 ND ND ND ND ND ug/L 04/21/98 --5 ND ND ND ND ND ug/L 04/07/99 --5 ND ND ND ND ND ug/L 10/13/99 --5 ND ND ND ND ND ug/L 04/05/00 --5 ND ND ND ND ND ug/L 10/25/00 --5 ND ND ND ND ND ug/L 04/04/01 --5 ND ND ND ND ND ug/L 04/08/02 --5 ND ND ND ND ND ug/L 10/21/02 --5 ND ND ND ND ND ug/L 04/14/03 --5 ND ND ND ND ND ug/L 10/01/03 --5 ND ND ND ND ND ug/L 04/05/04 --5 ND ND ND ND ND ug/L 10/18/04 --5 ND ND ND ND ND ug/L 04/07/05 --5 ND ND ND ND ND ug/L 10/06/05 --5 ND ND ND ND ND ug/L 04/03/06 --5 ND ND ND ND ND ug/L 10/03/06 --5 ND ND ND ND ND ug/L 04/05/07 --5 ND ND ND ND ND ug/L 10/18/07 --5 --2.3 J --0.9 J ND ug/L 04/29/08 --5 ND ND ND ND ND ug/L 10/23/08 --5 Dry 0.51 J ND 0.57 J ND ug/L 04/07/09 --5 ND ND ND ND ND ug/L 10/19/09 --5 Dry 0.44 J Dry 0.56 J ND ug/L 04/29/10 --5 ND ND ND ND ND ug/L 10/13/10 --5 ND 1.6 J ND 0.44 J ND ug/L 04/11/11 --5 ND ND ND ND ND ug/L 10/03/11 --5 ND ND ND ND ND ug/L 04/10/12 --5 ND ND ND 0.34 J ND ug/L 10/15/12 --5 ND ND ND 0.92 J ND ug/L 04/09/13 --5 ND ND ND ND ND ug/L 10/08/13 --5 ND ND ND 0.47 J ND ug/L 04/08/14 --5 ND ND ND ND ND ug/L 10/08/14 0.18 5 0.75 J dry ND 0.65 J ND ug/L 04/08/15 0.18 5 ND ND ND ND ND ug/L 10/28/15 0.18 5 ND ND ND 0.58 J ND ug/L 04/05/16 0.18 5 ND ND ND 0.47 J ND ug/L 10/04/16 0.18 5 ND 1.8 J ND 1.0 J ND ug/L 04/03/17 0.18 5 ND ND ND ND ND June 2017 10 of 11 141122017.101 0739612716.102 G:\PROJECTS\Waste Management\Randolph County\141122017 - Randolph Co LF - NC\Phase 101 - 1st SA WQM Event\600 CALCULATIONS\Tables April 2017.xlsx SW-1 SW-3 SW-2 SW-4 Downstream TABLE 6 Summary of Historical Surface Water Monitoring Results Closed Randolph County Landfill, Permit No. 76-01 BlanksDetected Monitoring Constituent/Parameter Units Date SWS Reporting Limit UpstreamMethod Detection Limit Dibromochloromethane ug/L 09/22/94 --5 ND ND ND ND ND No SW Standard ug/L 11/08/94 --5 ND ND ND ND ND ug/L 01/18/95 --5 ND ND ND ND ND ug/L 04/23/96 --5 ND ND ND ND ND ug/L 06/17/97 --5 ND ND ND ND ND ug/L 10/16/97 --5 ND ND ND ND ND ug/L 04/21/98 --5 ND ND ND ND ND ug/L 04/07/99 --5 ND ND ND ND ND ug/L 10/13/99 --5 ND ND ND ND ND ug/L 04/05/00 --5 ND ND ND ND ND ug/L 10/25/00 --5 ND ND ND ND ND ug/L 04/04/01 --5 ND ND ND ND ND ug/L 04/08/02 --5 ND ND ND ND ND ug/L 10/21/02 --5 ND ND ND ND ND ug/L 04/14/03 --5 ND ND ND ND ND ug/L 10/01/03 --5 ND ND ND ND ND ug/L 04/05/04 --5 ND ND ND ND ND ug/L 10/18/04 --5 ND ND ND ND ND ug/L 04/07/05 --5 ND ND ND ND ND ug/L 10/06/05 --5 ND ND ND ND ND ug/L 04/03/06 --5 ND ND ND ND ND ug/L 10/03/06 --5 ND ND ND ND ND ug/L 04/05/07 --3 ND ND ND ND ND ug/L 10/18/07 --3 --0.8 J --0.2 J ND ug/L 04/29/08 --3 ND ND ND ND ND ug/L 10/23/08 --3 Dry ND ND ND ND ug/L 04/07/09 --3 ND ND ND ND ND ug/L 10/19/09 --3 Dry ND Dry ND ND ug/L 04/29/10 --3 ND ND ND ND ND ug/L 10/13/10 --3 ND 4.0 ND ND ND ug/L 04/11/11 --3 ND ND ND ND ND ug/L 10/03/11 --3 ND ND ND ND ND ug/L 04/10/12 --3 ND ND ND ND ND ug/L 10/15/12 --3 ND ND ND ND ND ug/L 04/09/13 --3 ND ND ND ND ND ug/L 10/08/13 --3 ND ND ND ND ND ug/L 04/08/14 --3 ND ND ND ND ND ug/L 10/08/14 0.17 3 ND dry ND ND ND ug/L 04/08/15 0.17 3 ND ND ND ND ND ug/L 10/28/15 0.17 3 ND ND ND ND ND ug/L 04/05/16 0.17 3 ND ND ND ND ND ug/L 10/04/16 0.17 3 ND ND ND ND ND ug/L 04/03/17 0.17 3 ND ND ND ND ND 1,1-Dichloroethane ug/L 09/22/94 --5 ND ND ND ND ND No SW Standard ug/L 11/08/94 --5 ND ND ND ND ND ug/L 01/18/95 --5 ND ND ND ND ND ug/L 04/23/96 --5 ND ND 6 ND ND ug/L 06/17/97 --5 ND ND ND ND ND ug/L 10/16/97 --5 ND ND ND ND ND ug/L 04/21/98 --5 ND ND ND ND ND ug/L 04/07/99 --5 ND ND ND ND ND ug/L 10/13/99 --5 ND ND ND ND ND ug/L 04/05/00 --5 ND ND ND ND ND ug/L 10/25/00 --5 ND ND ND ND ND ug/L 04/04/01 --5 ND ND ND ND ND ug/L 04/08/02 --5 ND ND ND ND ND ug/L 10/21/02 --5 ND ND ND ND ND ug/L 04/14/03 --5 ND ND ND ND ND ug/L 10/01/03 --5 ND ND ND ND ND ug/L 04/05/04 --5 ND ND ND ND ND ug/L 10/18/04 --5 ND ND ND ND ND ug/L 04/07/05 --5 ND ND ND ND ND ug/L 10/06/05 --5 ND ND ND ND ND ug/L 04/03/06 --5 ND ND ND ND ND ug/L 10/03/06 --5 ND ND ND ND ND ug/L 04/05/07 --5 ND ND ND ND ND ug/L 10/18/07 --5 ND ND ND ND ND ug/L 04/29/08 --5 ND ND 1.5 J 1.9 J ND ug/L 10/23/08 --5 Dry ND ND ND ND ug/L 04/07/09 --5 ND ND 0.55 J ND ND ug/L 10/19/09 --5 Dry ND Dry ND ND ug/L 04/29/10 --5 ND ND ND ND ND ug/L 10/13/10 --5 ND ND ND ND ND ug/L 04/11/11 --5 ND ND 0.64 J ND ND ug/L 10/03/11 --5 ND 1.0 J ND ND ND ug/L 04/10/12 --5 ND 0.48 J ND ND ND ug/L 10/15/12 --5 ND ND ND ND ND ug/L 04/09/13 --5 ND ND 0.75 J ND ND ug/L 10/08/13 --5 ND ND ND ND ND ug/L 04/08/14 --5 ND ND ND ND ND ug/L 10/08/14 0.13 5 ND dry ND ND ND ug/L 04/08/15 0.13 5 ND ND ND ND ND ug/L 10/28/15 0.13 5 ND ND ND ND ND ug/L 04/05/16 0.13 5 ND ND 0.63 J ND ND ug/L 10/04/16 0.13 5 ND ND ND ND ND ug/L 04/03/17 0.13 5 ND ND ND ND ND June 2017 11 of 11 141122017.101 0739612716.102 G:\PROJECTS\Waste Management\Randolph County\141122017 - Randolph Co LF - NC\Phase 101 - 1st SA WQM Event\600 CALCULATIONS\Tables April 2017.xlsx SW-1 SW-3 SW-2 SW-4 Downstream TABLE 6 Summary of Historical Surface Water Monitoring Results Closed Randolph County Landfill, Permit No. 76-01 BlanksDetected Monitoring Constituent/Parameter Units Date SWS Reporting Limit UpstreamMethod Detection Limit Chloromethane ug/L 09/22/94 --10 ND ND ND ND ND No SW Standard ug/L 11/08/94 --10 ND ND ND ND ND ug/L 01/18/95 --10 ND ND ND ND ND ug/L 04/23/96 --10 ND ND ND ND ND ug/L 06/17/97 --10 ND ND ND ND ND ug/L 10/16/97 --10 ND ND ND ND ND ug/L 04/21/98 --10 ND ND ND ND ND ug/L 04/07/99 --10 ND ND ND ND ND ug/L 10/13/99 --10 ND ND ND ND ND ug/L 04/05/00 --10 ND ND ND ND ND ug/L 10/25/00 --10 ND ND ND ND ND ug/L 04/04/01 --10 ND ND ND ND ND ug/L 04/08/02 --10 ND ND ND ND ND ug/L 10/21/02 --10 ND ND ND ND ND ug/L 04/14/03 --10 ND ND ND ND ND ug/L 10/01/03 --10 ND ND ND ND ND ug/L 04/05/04 --10 ND ND ND ND ND ug/L 10/18/04 --10 ND ND ND ND ND ug/L 04/07/05 --10 ND ND ND ND ND ug/L 10/06/05 --10 ND ND ND ND ND ug/L 04/03/06 --10 ND ND ND ND ND ug/L 10/03/06 --10 ND ND ND ND ND ug/L 04/05/07 --5 ND ND ND ND ND ug/L 10/18/07 --1 --0.6 J --0.4 J ND ug/L 04/29/08 --1 ND ND ND ND ND ug/L 10/23/08 --1 Dry ND ND ND ND ug/L 04/07/09 --1 ND ND ND ND ND ug/L 10/19/09 --1 Dry ND Dry ND ND ug/L 04/29/10 --1 ND ND ND ND ND ug/L 10/13/10 --1 ND ND ND ND 0.49 J ug/L 04/11/11 --1 ND ND ND ND ND ug/L 10/03/11 --1 ND ND ND ND ND ug/L 04/10/12 --1 ND ND ND ND ND ug/L 10/15/12 --1 ND ND ND ND ND ug/L 04/09/13 --1 ND ND ND ND ND ug/L 10/08/13 --1 ND ND ND ND ND ug/L 04/08/14 --1 ND ND ND ND ND ug/L 10/08/14 0.13 1 ND dry ND ND ND ug/L 04/08/15 0.13 1 ND ND ND ND ND ug/L 10/28/15 0.13 1 ND ND ND ND ND ug/L 04/05/16 0.13 1 ND ND ND ND ND ug/L 10/04/16 0.13 1 ND ND ND ND ND ug/L 04/03/17 0.13 1 ND ND ND ND ND Notes:mg/L =milligrams per liter ug/L =micrograms per liter ND = J =Estimated concentration B =Blank-qualified result -- =no data available Bold =Concentrations above Human Health or Chronic Surface Water Standard Shaded and Bold =Concentration above Acute and Chronic Surface Water Standards SW Standard =Surface Water Standard based on Freshwater Aquatic Life Classification Blanks =field, trip and method blanks SWS Reporting Limit =NCPQL or lab-specific reporting limit prior to October 2007 and NCSWSL starting in October 2007 (N) =Narrative Standard (AL) =Action Level Standard Historical data prior to April 2008 provided by the County and taken from historical reports from Hazen and Sawyer and Environment 1. Not detected at the stated reporting limit for data before October 2007 and not detected at the laboratory detection limit for data from October 200 f d June 2017 1 of 3 141122017.101 0739612716.102 G:\PROJECTS\Waste Management\Randolph County\141122017 - Randolph Co LF - NC\Phase 101 - 1st SA WQM Event\600 CALCULATIONS\Tables April 2017.xlsx SW-1 SW-3 SW-2 SW-4 pH (field)S.U.09/22/94 5.9 5.9 5.7 6.0 S.U.11/08/94 6.2 --6.2 -- S.U.01/18/95 6.3 --6.4 -- S.U.04/23/96 6.2 6.1 6.4 -- S.U.06/17/97 5.4 5.8 --4.5 S.U.10/16/97 6.0 6.2 5.5 6.1 S.U.04/21/98 6.4 6.4 6.2 6.8 S.U.04/07/99 6.4 7.1 6.2 7.0 S.U.10/13/99 7.7 7.5 6.9 7.4 S.U.04/05/00 7.8 6.8 6.6 7.0 S.U.10/25/00 6.3 7.0 --7.0 S.U.04/04/01 6.2 7.2 6.4 7.2 S.U.04/08/02 6.7 7.6 6.2 7.2 S.U.10/21/02 6.9 7.2 6.4 7.4 S.U.04/14/03 7.5 7.1 6.7 7.2 S.U.10/01/03 6.6 7.0 6.2 7.1 S.U.04/05/04 6.4 7.8 6.6 7.4 S.U.10/18/04 7.4 7.3 6.2 7.3 S.U.04/07/05 7.0 7.3 6.6 7.4 S.U.10/06/05 7.0 6.8 --7.3 S.U.04/03/06 7.0 7.3 6.4 7.3 S.U.10/03/06 6.7 7.1 --7.0 S.U.04/05/07 6.7 7.1 6.3 7.1 S.U.10/18/07 --7.4 --8.0 S.U.04/29/08 6.43 8.61 8.66 6.91 S.U.10/23/08 Dry 9.37 6.91 5.86 S.U.04/07/09 6.93 7.37 6.53 7.48 S.U.10/19/09 Dry 6.80 Dry 8.04 S.U.04/29/10 6.25 7.29 6.57 7.08 S.U.10/13/10 6.48 7.22 6.00 7.09 S.U.04/12/11 6.92 6.68 6.24 6.02 S.U.10/03/11 8.16 7.54 7.80 7.75 S.U.04/11/12 6.59 7.21 6.90 7.42 S.U.10/15/12 6.57 6.67 6.82 6.93 S.U.04/09/13 7.27 6.93 5.79 7.34 S.U.10/08/13 7.09 7.39 7.41 7.26 S.U.04/08/14 7.62 8.10 6.54 8.09 S.U.10/08/14 6.98 7.76 dry 7.20 S.U.04/08/15 6.80 7.56 6.09 7.02 S.U.10/28/15 6.39 7.28 7.69 6.89 S.U.04/05/16 7.03 6.36 5.92 7.16 S.U.10/04/16 6.47 6.74 6.46 6.52 S.U.04/03/17 7.67 7.24 6.92 7.36 Conductivity (field)uS/cm 09/22/94 80 600 260 520 uS/cm 11/08/94 87 --230 -- uS/cm 01/18/95 270 --160 -- uS/cm 04/23/96 170 210 180 -- uS/cm 06/17/97 160 190 --200 uS/cm 10/16/97 170 620 260 460 uS/cm 04/21/98 610 100 200 94 uS/cm 04/07/99 300 180 220 180 uS/cm 10/13/99 1200 300 220 240 uS/cm 04/05/00 370 160 230 230 uS/cm 10/25/00 150 730 --500 uS/cm 04/04/01 530 130 200 130 uS/cm 04/08/02 260 180 200 210 uS/cm 10/21/02 342 192 251 197 uS/cm 04/14/03 1860 128 258 125 uS/cm 10/01/03 308 190 397 199 uS/cm 04/05/04 350 420 270 230 uS/cm 10/18/04 590 294 329 295 uS/cm 04/07/05 364 195 262 195 uS/cm 10/06/05 195 692 --618 uS/cm 04/03/06 255 269 288 298 uS/cm 10/03/06 180 167 --178 uS/cm 04/05/07 240 180 282 186 uS/cm 10/18/07 --556 --325 uS/cm 04/29/08 157 169 166 180 uS/cm 10/23/08 Dry 247 239 236 uS/cm 04/07/09 194 181 276 179 uS/cm 10/19/09 Dry 300 Dry 316 uS/cm 04/29/10 174 225 354 181 uS/cm 10/13/10 218 596 341 336 uS/cm 04/12/11 145 220 204 215 uS/cm 10/03/11 111 336 272 284 uS/cm 04/11/12 132 208 197 175 uS/cm 10/15/12 185 325 182 248 uS/cm 04/09/13 115 160 185 169 uS/cm 10/08/13 190 257 339 340 uS/cm 04/08/14 186 200 331 196 uS/cm 10/08/14 449 324 Dry 473 uS/cm 04/08/15 101 199 236 248 uS/cm 10/28/15 140.5 211.8 193.7 272.1 uS/cm 04/05/16 167 162 259 170 uS/cm 10/04/16 222 262 281 154 uS/cm 04/03/17 165 186 131 176 TABLE 7 Summary of Surface Water Field Parameters Closed Randolph County Landfill, Permit No. 76-01 Detected Monitoring Constituent/Parameter Units Date Upstream Downstream June 2017 2 of 3 141122017.101 0739612716.102 G:\PROJECTS\Waste Management\Randolph County\141122017 - Randolph Co LF - NC\Phase 101 - 1st SA WQM Event\600 CALCULATIONS\Tables April 2017.xlsx SW-1 SW-3 SW-2 SW-4 TABLE 7 Summary of Surface Water Field Parameters Closed Randolph County Landfill, Permit No. 76-01 Detected Monitoring Constituent/Parameter Units Date Upstream Downstream Temperature (field)Celsius 09/22/94 16 21 17 21 Celsius 11/08/94 9 --9 -- Celsius 01/18/95 8 --6 -- Celsius 04/23/96 17 20 16 -- Celsius 06/17/97 21 27 --27 Celsius 10/16/97 14 19 13 19 Celsius 04/21/98 14 16 12 16 Celsius 04/07/99 16 21 15 20 Celsius 10/13/99 11 18 17 18 Celsius 04/05/00 11 14 8 16 Celsius 10/25/00 15 18 --17 Celsius 04/04/01 11 12 9 12 Celsius 04/08/02 16 16 13 17 Celsius 10/21/02 15 15 15 15 Celsius 04/14/03 16 15 13 17 Celsius 10/01/03 14 18 13 18 Celsius 04/05/04 12 12 9 14 Celsius 10/18/04 15 17 13 17 Celsius 04/07/05 17 18 15 17 Celsius 10/06/05 21 24 --23 Celsius 04/03/06 15 18 15 18 Celsius 10/03/06 17 22 --22 Celsius 04/05/07 11 17 12 17 Celsius 10/18/07 --20 --20 Celsius 04/29/08 16.49 17.97 18.02 17.68 Celsius 10/23/08 Dry 16.35 11.53 15.95 Celsius 04/07/09 11.29 13.09 13.41 14.08 Celsius 10/19/09 Dry 14.34 Dry 14.63 Celsius 04/29/10 13.30 18.31 14.55 17.87 Celsius 10/13/10 16.38 18.83 15.81 18.83 Celsius 04/12/11 17.37 15.26 18.37 16.97 Celsius 10/03/11 12.99 19.03 14.17 20.52 Celsius 04/11/12 12.05 16.30 12.93 16.36 Celsius 10/15/12 14.61 16.86 14.90 17.71 Celsius 04/09/13 15.91 15.46 19.98 16.32 Celsius 10/08/13 16.0 20.9 16.2 21.0 Celsius 04/08/14 15.5 13.2 12.5 13.0 Celsius 10/08/14 19.8 21.4 Dry 21.5 Celsius 04/08/15 17.4 17.3 18.0 14.6 Celsius 10/28/15 16.7 16.4 15.3 16.4 Celsius 04/05/16 15.8 17.7 9.9 18.0 Celsius 10/04/16 17.4 21.4 17.4 21.2 Celsius 04/03/17 15.9 17.2 16.8 17.3 Turbidity (field)NTU 04/29/08 28.8 82.0 137 16.0 NTU 10/23/08 Dry 6.04 4.41 28.6 NTU 04/07/09 12.7 12.3 15.2 25.0 NTU 10/19/09 Dry 16.4 Dry 12.5 NTU 04/29/10 8.74 11.6 11.0 12.9 NTU 10/13/10 10.1 10.8 7.07 15.9 NTU 04/12/11 21.8 19.8 11.5 36.3 NTU 10/03/11 13.2 15.2 22.3 14.9 NTU 04/11/12 16.3 15.2 7.33 15.8 NTU 10/15/12 17.2 14.0 25.4 12.6 NTU 04/09/13 21.4 20.4 9.78 16.0 NTU 10/08/13 35.0 11.7 7.15 8.88 NTU 04/08/14 23.1 40.2 27.2 30.3 NTU 10/08/14 7.81 13.2 Dry 4.26 NTU 04/08/15 5.88 7.99 3.77 7.58 NTU 10/28/15 37.2 9.89 10.8 10.3 NTU 04/05/16 11.4 14.9 3.14 17.0 NTU 10/04/16 18.3 18.2 2.98 26.9 NTU 04/03/17 7.50 13.8 10.5 19.3 Dissolved Oxygen (field)mg/L 04/29/08 6.09 7.66 5.93 3.78 mg/L 10/23/08 Dry 7.14 8.80 5.72 mg/L 04/07/09 10.70 9.50 10.30 9.70 mg/L 10/19/09 Dry 8.55 Dry 7.45 mg/L 04/01/10 8.26 8.40 4.97 7.90 mg/L 10/13/10 2.98 5.54 3.50 6.53 mg/L 04/12/11 8.91 8.41 8.33 9.50 mg/L 10/03/11 13.01 8.78 7.36 10.27 mg/L 04/11/12 9.02 7.48 9.46 7.04 mg/L 10/15/12 8.29 6.14 6.96 7.14 mg/L 04/09/13 11.09 7.90 8.79 8.82 mg/L 10/08/13 7.15 4.34 6.53 3.98 mg/L 04/08/14 9.03 12.61 13.28 13.64 mg/L 10/08/14 5.50 5.30 Dry 6.26 mg/L 04/08/15 9.01 11.10 7.60 8.21 mg/L 10/28/15 6.45 7.80 8.54 5.74 mg/L 04/05/16 6.65 8.51 8.73 8.22 mg/L 10/04/16 3.87 4.01 6.16 3.46 mg/L 04/03/17 10.96 7.77 9.10 7.44 June 2017 3 of 3 141122017.101 0739612716.102 G:\PROJECTS\Waste Management\Randolph County\141122017 - Randolph Co LF - NC\Phase 101 - 1st SA WQM Event\600 CALCULATIONS\Tables April 2017.xlsx SW-1 SW-3 SW-2 SW-4 TABLE 7 Summary of Surface Water Field Parameters Closed Randolph County Landfill, Permit No. 76-01 Detected Monitoring Constituent/Parameter Units Date Upstream Downstream ORP (field)mV 10/23/08 Dry -44 -18 103 mV 04/07/09 110.6 158 12.7 158.7 mV 10/19/09 Dry 91.7 Dry 114.6 mV 04/29/10 8.6 89.9 98.4 105.1 mV 10/13/10 156.1 184.5 211.3 155.8 mV 04/12/11 44.2 188.7 237.6 154.9 mV 10/03/11 110.8 101.8 74.8 127.5 mV 04/11/12 23.7 54.1 32.1 57.1 mV 10/15/12 61.4 73.6 49.5 77.0 mV 04/09/13 -8.4 72.4 64.5 64.8 mV 10/08/13 1.2 41.3 51.1 52.5 mV 04/08/14 -17.1 76.9 78.8 220.2 mV 10/08/14 174.6 302.4 Dry 327.8 mV 04/08/15 14.0 82.8 93.4 57.2 mV 10/28/15 1.5 199.9 95.1 111.4 mV 04/05/16 149.3 156.9 96.0 128.4 mV 10/04/16 20.2 83.6 119.2 101.4 mV 04/03/17 161.4 152.4 143.4 223.4 Notes:mg/L =milligrams per liter S.U. =Standard Units NTU =Nephelometric Turbidity Units ND = uS/cm =microsiemens per centimeter mV =Millivolts -- =no data available Not detected at the stated reporting limit for data before October 2007 and not detected at the laboratory detection limit for data from October 2007 forward June 2017 1 of 2 141122017.101 0739612716.102 G:\PROJECTS\Waste Management\Randolph County\141122017 - Randolph Co LF - NC\Phase 101 - 1st SA WQM Event\600 CALCULATIONS\Tables April 2017.xlsx MW-5 MW-2 MW-3 MW-7 MW-8 MW-10S MW-10D MW-11S Sulfide mg/L 04/11/11 0.01 ND ND --ND ND ND ND ND ND mg/L 10/28/15 0.01 ND ND ND ND ND ND ND ND ND mg/L 04/05/16 0.01 ND ND ND ND ND ND ND ND ND mg/L 10/04/16 0.01 ND ND ND ND ND ND ND ND ND mg/L 04/03/17 0.01 ND ND ND ND ND ND ND ND ND Chloride mg/L 04/11/11 0.047 8.4 B 22 --20 10 32 270 5.3 B 1.9 mg/L 10/28/15 2.2 6.1 48 4.6 J 19 13 47 280 4.3 J ND mg/L 04/05/16 2.2 6.2 15 4.7 J 12 11 27 270 5.2 ND mg/L 10/04/16 6.5 6.1 19 5.4 17 14 45 220 5.2 ND mg/L 04/03/17 2.2 6.2 18 6.8 13 12 33 190 5.0 ND Nitrate as N mg/L 04/11/11 0.025 1.2 J ND --3.3 J 1.9 J ND ND ND -- mg/L 10/28/15 0.025 1.0 J ND 0.10 J ND 0.16 J ND 0.11 J 0.11 J ND mg/L 04/05/16 0.025 1.1 J ND 0.13 J 0.047 J 0.13 J ND 0.10 J 0.09 J ND mg/L 10/04/16 0.025 1.1 J ND 0.15 J 0.048 J 0.16 J 0.064 J 0.058 J 0.11 J ND mg/L 04/03/17 0.025 0.92 J ND 0.10 J ND 0.12 J ND ND 0.082 J ND Nitrite as N mg/L 04/11/11 0.003 ND ND --ND ND ND 0.0053 B ND 0.0038 J mg/L 10/28/15 0.017 ND ND 0.018 J ND ND ND ND ND ND mg/L 04/05/16 0.017 ND ND ND ND ND ND ND ND ND mg/L 10/04/16 0.017 ND ND ND ND ND ND ND ND ND mg/L 04/03/17 0.017 ND ND ND ND ND ND ND ND ND Sulfate as SO4 mg/L 04/11/11 0.02 9.7 J 6.4 J --2.1 J 2.1 J 15 J 35 J 4.5 J ND mg/L 10/28/15 2.9 7.1 J ND 3.0 J ND ND 8.8 J 17 J ND ND mg/L 04/05/16 2.9 7.5 J 3.1 J 3.1 J ND ND 7.2 J 14 J ND ND mg/L 10/04/16 2.9 8.4 J 3.3 J 3.3 J ND ND 8.7 J 3.2 J ND ND mg/L 04/03/17 2.9 7.0 J 3.3 J 3.1 J ND ND 8.0 J 3.1 J ND ND Biochemical Oxygen Demand mg/L 04/11/11 -------------------- mg/L 10/28/15 2 ND ND ND ND ND ND ND ND ND mg/L 04/05/16 2 ND ND ND ND ND ND ND ND ND mg/L 10/04/16 2 ND ND ND ND ND ND ND ND ND mg/L 04/03/17 2 ND ND ND ND ND ND ND ND ND Chemical Oxygen Demand mg/L 04/11/11 -------------------- mg/L 10/28/15 1 12 35 48 10 10 12 31 10 ND mg/L 04/05/16 10 ND ND 10 ND ND ND 29 ND ND mg/L 10/04/16 10 ND 25 29 ND 10 ND 29 ND ND mg/L 04/03/17 10 ND 32 17 ND ND 17 32 ND ND Total Alkalinity as CaCO3 mg/L 04/11/11 12 460 ND --26 88 43 330 18 ND mg/L 10/28/15 14 480 ND 44 40 1000 55 410 25 ND mg/L 04/05/16 14 530 19 47 24 94 46 410 26 ND mg/L 10/04/16 14 480 ND ND 33 100 44 440 16 ND mg/L 04/03/17 14 490 ND 58 37 91 45 440 19 ND Total Organic Carbon mg/L 04/11/11 0.27 1.6 6.4 --1.3 0.85 J 1.5 6.9 0.62 J ND mg/L 10/28/15 0.34 0.14 5.6 11 2.2 0.35 J 1.2 3.9 ND ND mg/L 04/05/16 0.34 ND 3.9 2.4 ND ND 1.3 4.7 0.36 J ND mg/L 10/04/16 0.34 1.8 6.2 4.0 3.7 0.94 J 1.6 6.1 0.43 J ND mg/L 04/03/17 0.34 1.7 2.9 2.2 2.9 0.79 J 1.3 6.5 0.44 J ND Ethane mg/L 04/11/11 0.0015 ND ND --ND ND ND ND ND ND mg/L 10/28/15 0.00047 ND ND ND ND ND ND ND ND ND mg/L 04/05/16 0.00047 ND ND ND ND ND ND ND ND ND mg/L 10/04/16 0.001 ND ND ND ND ND ND 0.0015 ND ND mg/L 04/03/17 0.00005 ND ND ND 0.00053 ND ND 0.0013 ND ND Ethene mg/L 04/11/11 0.0016 ND ND --ND ND ND ND ND ND mg/L 10/28/15 0.00062 ND ND ND ND ND ND ND ND ND mg/L 04/05/16 0.00062 ND ND ND ND ND ND ND ND ND mg/L 10/04/16 0.001 ND ND ND ND ND ND ND ND ND mg/L 04/03/17 0.00007 ND ND ND ND ND ND 0.00055 ND ND Methane mg/L 04/11/11 0.00049 ND ND --1.62 0.640 J ND 4.30 ND ND mg/L 10/28/15 0.00044 0.00452 0.408 ND 5.56 ND 1.38 ND 0.000608 J ND mg/L 04/05/16 0.00044 ND 0.0238 ND 1.13 ND 0.0208 ND ND ND mg/L 10/04/16 0.0025 0.0054 0.250 0.052 6.30 0.0065 0.430 0.130 0.034 ND mg/L 04/03/17 0.00019 ND 0.260 0.840 5.60 ND 0.180 0.094 0.0025 ND Hexanoic Acid mg/L 04/11/11 0.23 ND ND --ND ND ND ND ND ND mg/L 10/28/15 0.26 ND ND ND ND ND ND ND ND ND mg/L 04/05/16 0.26 ND ND ND ND ND ND ND ND ND mg/L 10/04/16 0.26 ND ND ND ND ND ND ND ND ND mg/L 04/03/17 0.26 ND ND ND ND ND ND ND ND ND iso-Hexanoic Acid mg/L 04/11/11 0.21 ND ND --ND ND ND ND ND ND mg/L 10/28/15 0.44 ND ND ND ND ND ND ND ND ND mg/L 04/05/16 0.44 0.64 0.58 0.55 ND ND ND ND ND ND mg/L 10/04/16 0.44 ND 0.58 ND ND ND ND ND ND ND mg/L 04/03/17 0.44 ND ND ND ND ND ND ND ND ND iso-Pentanoic Acid mg/L 04/11/11 0.26 ND ND --ND ND ND ND ND ND mg/L 10/28/15 0.18 ND ND ND ND ND ND ND ND ND mg/L 04/05/16 0.18 ND ND ND ND ND ND ND ND ND mg/L 10/04/16 0.18 ND ND ND ND ND ND ND ND ND mg/L 04/03/17 0.18 ND ND ND ND ND ND ND ND ND Pentanoic Acid mg/L 04/11/11 0.27 ND ND --ND ND ND ND ND ND mg/L 10/28/15 0.11 ND ND ND ND ND ND ND ND ND mg/L 04/05/16 0.11 ND ND ND 0.26 0.56 ND ND ND ND mg/L 10/04/16 0.11 ND ND ND ND ND ND ND ND ND mg/L 04/03/17 0.11 0.18 J ND ND ND ND ND ND ND ND Carbon dioxide mg/L 04/11/11 2 43 167 --307 62.3 ND 79.0 53.2 ND mg/L 10/28/15 0.21 237 295 89.7 1030 166 967 129 171 ND mg/L 04/05/16 0.21 73.5 113 52.6 355 106 179 67.4 94.3 0.4 mg/L 10/04/16 0.005 63 120 75 560 110 190 320 99 ND mg/L 04/03/17 0.24 61 120 48 430 74 150 250 57 ND Pyruvic Acid mg/L 04/11/11 0.14 ND ND --ND ND ND ND ND ND mg/L 10/28/15 0.012 ND ND ND ND ND ND ND ND ND mg/L 04/05/16 0.012 ND 0.023 J ND 0.018 J 0.017 J 0.02 J ND 0.014 J ND mg/L 10/04/16 0.012 ND ND ND ND ND ND ND ND ND mg/L 04/03/17 0.012 ND ND ND 0.019 J ND ND ND ND ND Lactic Acid/HIBA (2-Hydroxyisobutyric Acid)mg/L 04/11/11 0.44 ND ND --ND ND ND ND ND ND mg/L 10/28/15 0.095 ND ND ND ND ND ND ND ND ND mg/L 04/05/16 0.095 ND ND ND ND ND ND ND ND ND mg/L 10/04/16 0.095 ND ND ND 0.30 ND ND ND ND ND mg/L 04/03/17 0.095 ND ND ND ND ND ND ND ND ND Acetic Acid mg/L 04/11/11 0.083 ND ND --ND ND ND ND ND ND mg/L 10/28/15 0.46 ND ND ND ND ND ND ND ND ND mg/L 04/05/16 0.16 ND ND ND ND ND ND ND ND ND mg/L 10/04/16 0.16 ND ND ND ND ND ND 8.8 ND ND mg/L 04/03/17 0.16 0.32 ND ND ND ND ND 7.8 ND ND Propionic Acid mg/L 04/11/11 0.18 ND ND --ND ND ND ND ND ND mg/L 10/28/15 0.065 ND ND ND ND ND ND ND ND ND mg/L 04/05/16 0.065 ND ND ND ND ND ND ND ND ND mg/L 10/04/16 0.065 ND ND ND ND ND ND ND ND ND mg/L 04/03/17 0.065 ND ND ND ND ND ND ND ND ND Butyric Acid mg/L 04/11/11 0.16 ND ND --ND ND ND ND ND ND mg/L 10/28/15 0.089 ND ND ND ND ND ND ND ND ND mg/L 04/05/16 0.089 ND ND ND ND ND ND ND ND ND mg/L 10/04/16 0.089 ND ND ND ND ND ND ND ND ND mg/L 04/03/17 0.089 ND ND ND ND ND ND ND ND ND Hydrogen nM 04/11/11 0.60 2.7 0.75 --0.93 0.74 2.0 1.8 0.90 -- nM 10/28/15 0.088 3.7 2.8 2.3 3.1 3.5 2.6 3.0 2.9 -- nM 04/05/16 0.088 2.6 2.0 1.9 1.5 3.2 2.5 2.3 3.2 -- nM 10/04/16 0.60 1.7 1.8 1.9 4.1 1.8 1.8 1.5 1.8 -- nM 04/03/17 0.075 2.4 2.2 2.1 3.3 2.1 2.1 1.9 6.0 -- Ferrous Iron mg/L 04/11/11 -------------------- (field)mg/L 10/28/15 --ND 1.2 ND 2.2 --0.6 ND ND -- mg/L 04/05/16 -------------------- (laboratory)mg/L 10/04/16 0.50 ND ND 0.51 1.9 ND ND 7.5 ND ND (laboratory)mg/L 04/03/17 0.046 ND 0.67 1.8 1.5 ND ND 7.0 ND ND pH (field)S.U.04/11/11 --6.63 4.52 --4.61 5.80 5.45 6.35 5.08 -- S.U.10/28/15 --6.71 4.68 5.62 4.70 5.99 5.29 6.72 5.33 -- S.U.04/05/16 --6.66 4.59 5.63 4.73 5.82 5.05 6.59 5.48 -- S.U.10/04/16 --6.17 4.18 5.93 4.49 6.27 5.00 5.93 4.83 -- S.U.04/03/17 --6.90 4.47 6.09 4.99 6.16 5.25 6.14 4.99 -- Conductivity (field)uS/cm 04/11/11 --884 132 --112 214 267 1665 71 -- uS/cm 10/28/15 --794.0 185.9 106.0 140.6 230.0 262.6 1551 64.8 -- uS/cm 04/05/16 --902.0 81 116.0 104 226 214 1614 72 -- uS/cm 10/04/16 843 91 109 148 232 193 1420 79 -- uS/cm 04/03/17 --715 104.8 123 108 181 197 1276 77.1 -- Temperature (field)Celsius 04/11/11 --16.62 15.45 --16.42 14.68 15.38 15.97 16.86 -- Celsius 10/28/15 --18.5 18.7 16.4 17.3 16.9 17.1 16.0 18.4 -- Celsius 04/05/16 --14.9 15.2 14.6 16.2 13.4 12.7 13.1 16.1 -- Celsius 10/04/16 --17.3 16.3 17.5 17.3 18.3 17.0 16.1 18.0 -- Celsius 04/03/17 --15.6 16.6 15.1 16.3 14.0 15.9 16.1 17.2 -- Turbidity (field)NTU 04/11/11 --4.39 91.4 --16.7 34.7 5.35 19.9 2.76 -- NTU 10/28/15 --3.98 50.5 85.5 1.29 14.0 1.33 15.6 2.42 -- NTU 04/05/16 --17.9 44.0 48.5 17.3 4.97 1.23 2.97 5.73 -- NTU 10/04/16 --3.10 42.4 201 1.24 1.05 1.41 28.9 7.17 -- NTU 04/03/17 --1.14 67.9 81.0 2.59 1.46 1.80 13.4 10.8 -- TABLE 8 Summary of Geochemical Parameters Closed Randolph County Landfill, Permit No. 76-01 Detected Monitoring Constituent/Parameter Units Date Method Detection Limit Upgradient Well Downgradient Wells Blanks June 2017 2 of 2 141122017.101 0739612716.102 G:\PROJECTS\Waste Management\Randolph County\141122017 - Randolph Co LF - NC\Phase 101 - 1st SA WQM Event\600 CALCULATIONS\Tables April 2017.xlsx MW-5 MW-2 MW-3 MW-7 MW-8 MW-10S MW-10D MW-11S TABLE 8 Summary of Geochemical Parameters Closed Randolph County Landfill, Permit No. 76-01 Detected Monitoring Constituent/Parameter Units Date Method Detection Limit Upgradient Well Downgradient Wells Blanks Dissolved Oxygen (field)mg/L 04/11/11 --2.69 0.97 --1.10 4.24 1.67 3.20 2.07 -- mg/L 10/28/15 --2.16 1.38 2.95 0.71 3.60 1.55 3.92 1.78 -- mg/L 04/05/16 --3.43 0.85 4.01 0.85 3.39 2.24 4.80 2.27 -- mg/L 10/04/16 --3.55 1.23 2.20 0.99 3.81 1.48 0.45 1.99 -- mg/L 04/03/17 --5.94 0.97 3.23 0.82 5.60 2.53 0.81 3.72 -- ORP (field)mV 04/11/11 --150.2 236.6 --238.4 166.7 157.8 119.1 179.3 -- mV 10/28/15 --11.0 90.0 199.1 136.8 178.3 114.5 99.4 178.3 -- mV 04/05/16 --204.3 295.7 202.1 187.9 192.9 192.8 140.4 176.8 -- mV 10/04/16 --220.3 303.6 60.2 195.5 90.0 247.2 8.6 279.7 -- mV 04/03/17 --211.2 160.3 110.2 125.1 202.4 139.2 111.1 149.2 -- Notes:ug/L =micrograms per liter mg/L = milligrams per liter ND =Not detected at the stated reporting limit for data before October 2007 and not detected at the laboratory detection limit for data from October 2007 forward NM =Not measured J =estimated concentration B =Blank-qualified result -- =no data available # =EPA Action Level * =EPA Secondary MCL Blanks =field, trip and method blanks Bold Only =Concentration above current NC 2L Groundwater Standard or NC SWS Groundwater Protection Standard Shaded and Bold =Concentration above current NC 2L Groundwater Standard or NC SWS Groundwater Protection Standard and EPA MCL GWPS =Solid Waste Section Groundwater Protection Standard NC 2L =North Carolina 2L Groundwater Standard EPA MCL =US Environmental Protection Agency Maximum Contaminant Level SWS Reporting Limit =NCPQL or lab-specific reporting limit prior to October 2007 and NCSWSL starting in October 2007 Wells MW-4, MW-A1, MW-A2, and MW-A3 are not sampled as part of the compliance network. 1)The dilutions during the April 2017 Event are as follows: Chloride (3x): MW-10D Total Alkalinity (5x): MW-5 and MW-10D June 2017 1 of 3 141122017.101 0739612716.102 G:\PROJECTS\Waste Management\Randolph County\141122017 - Randolph Co LF - NC\Phase 101 - 1st SA WQM Event\600 CALCULATIONS\Tables April 2017.xlsx MW-5 MW-2 MW-3 MW-6 MW-7 MW-8 MW-9 MW-10S MW-10D MW-11S Benzene ug/L 09/22/94 --5 ND ----ND ND ND ND ------ND NC 2L = 1 ug/L ug/L 11/08/94 --5 ND ----ND ND ND ND ------ND EPA MCL = 5 ug/L ug/L 01/18/95 --5 ND ----ND ND ND ND ------ND ug/L 04/23/96 --5 ND ----ND ND ND ND ------ND ug/L 06/17/97 --5 ND ----ND ND ND ND ------ND ug/L 10/16/97 --5 ND ----ND ND ND ND ------ND ug/L 04/21/98 --5 ND ----ND ND ND ND ------ND ug/L 04/07/99 --5 ND ----ND ND ND ND ------ND ug/L 10/13/99 --5 ND ----ND ND ND ND ------ND ug/L 04/05/00 --5 ND ----ND ND ND ND ------ND ug/L 10/25/00 --5 ND ----ND ND ND ND ------ND ug/L 04/04/01 --5 ND ----ND ND ND ND ------ND ug/L 04/08/02 --5 ND ND --ND ND ND ND ------ND ug/L 10/21/02 --5 ND ND --ND ND ND ND ------ND ug/L 04/14/03 --5 ND ND --ND ND ND ND ------ND ug/L 10/01/03 --5 ND ND --ND ND ND ND ------ND ug/L 04/05/04 --5 ND ND --ND ND ND ND ------ND ug/L 10/18/04 --5 ND ND --ND ND ND ND ------ND ug/L 04/07/05 --5 ND ND --ND -------------- ug/L 10/06/05 --5 ND ND --ND ND ND ND ------ND ug/L 04/03/06 --5 ND ND --ND ND ND ND ------ND ug/L 10/03/06 --5 ND ND --ND ND ND ND ------ND ug/L 04/05/07 --3 ND ND --ND ND ND ND ------ND ug/L 10/18/07 --1 ND ND --ND --ND ND ------ND ug/L 04/29/08 --1 ND ----ND 0.78 J ND ND ------ND ug/L 10/23/08 --1 ND ----ND 1.8 ND ND ------ND ug/L 04/07/09 --1 ND ----ND ND ND ND ------ND ug/L 10/19/09 --1 ND ----ND 1.9 ND ND ------ND ug/L 04/28/10 --1 ND ND --ND 1.3 ND ND ------ND ug/L 10/12/10 --1 ND ----ND 2.0 ND ND ------ND ug/L 04/11/11 --1 ND ----ND 1.3 ND ND ------ND ug/L 10/04/11 --1 ND ----ND 2.0 ND ND ND ND ND ND ug/L 04/10/12 --1 ND ----ND 1.3 ND ND ------ND ug/L 10/15/12 --1 ND ----ND 1.9 ND ND ------ND ug/L 04/09/13 --1 ND ----ND 1.3 ND ND ------ND ug/L 10/08/13 --1 ND ----ND 1.4 ND ND ------ND ug/L 04/08/14 --1 ND ----ND 1.1 ND ND ------ND ug/L 10/08/14 0.15 1 ND ----ND 1.4 ND ND ------ND ug/L 04/08/15 0.15 1 ND ----ND 0.58 J ND ND ------ND ug/L 10/28/15 0.15 1 ND ND ND ND 1.4 ND ND ND ND ND ND ug/L 04/05/16 0.15 1 ND ND ND ND 0.87 J ND ND ND ND ND ND ug/L 10/04/16 0.15 1 ND ND ND ND 1.4 ND ND ND 0.42 J ND ND ug/L 04/03/17 0.15 1 ND ND ND ND 1.4 ND ND ND ND ND ND 1,4-Dichlorobenzene ug/L 09/22/94 --5 ND ----ND ND ND ND ------ND NC 2L = 6 ug/L ug/L 11/08/94 --5 ND ----ND ND ND ND ------ND EPA MCL = 75 ug/L ug/L 01/18/95 --5 ND ----ND ND ND ND ------ND ug/L 04/23/96 --5 ND ----ND ND ND ND ------ND ug/L 06/17/97 --5 ND ----ND ND ND ND ------ND ug/L 10/16/97 --5 ND ----ND ND ND ND ------ND ug/L 04/21/98 --5 ND ----ND ND ND ND ------ND ug/L 04/07/99 --5 ND ----ND ND ND ND ------ND ug/L 10/13/99 --5 ND ----ND ND ND ND ------ND ug/L 04/05/00 --5 ND ----ND ND ND ND ------ND ug/L 10/25/00 --5 ND ----ND ND ND ND ------ND ug/L 04/04/01 --5 ND ----ND ND ND ND ------ND ug/L 04/04/02 --5 ND ND --ND ND ND ND ------ND ug/L 10/21/02 --5 ND ND --ND ND ND ND ------ND ug/L 04/14/03 --5 ND ND --ND ND ND ND ------ND ug/L 10/01/03 --5 ND ND --ND ND ND ND ------ND ug/L 04/05/04 --5 ND ND --ND ND ND ND ------ND ug/L 10/18/04 --5 ND ND --ND ND ND ND ------ND ug/L 04/07/05 --5 ND ND --ND ND ND ND ------ND ug/L 10/06/05 --5 ND ND --ND ND ND ND ------ND ug/L 04/03/06 --5 ND ND --ND ND ND ND ------ND ug/L 10/03/06 --5 ND ND --ND ND ND ND ------ND ug/L 04/05/07 --3 ND ND --ND ND ND ND ------ND ug/L 10/18/07 --1 ND ND --ND --ND ND ------ND ug/L 04/29/08 --1 ND ----ND ND ND ND ------ND ug/L 10/23/08 --1 ND ----ND ND ND ND ------ND ug/L 04/07/09 --1 ND ----ND ND ND ND ------ND ug/L 10/19/09 --1 ND ----ND ND ND ND ------ND ug/L 04/28/10 --1 ND ND --ND 0.67 J ND ND ------ND ug/L 10/12/10 --1 ND ----ND ND ND ND ------ND ug/L 04/11/11 --1 ND ----ND ND ND ND ------ND ug/L 10/04/11 --1 ND ----ND 1.0 ND ND ND 0.93 J ND ND ug/L 04/10/12 --1 ND ----ND ND ND ND ------ND ug/L 10/15/12 --1 ND ----ND ND ND ND ------ND ug/L 04/09/13 --1 ND ----ND 0.84 J ND ND ------ND ug/L 10/08/13 --1 ND ----ND 0.67 J ND ND ------ND ug/L 04/08/14 --1 ND ----ND ND ND ND ------ND ug/L 10/08/14 0.19 1 ND ----ND ND ND ND ------ND ug/L 04/08/15 0.19 1 ND ----ND ND ND ND ------ND ug/L 10/28/15 0.19 1 ND 0.40 J ND ND 0.57 J ND ND 0.67 J 0.43 J ND ND ug/L 04/05/16 0.19 1 ND ND ND ND ND ND ND ND ND ND ND ug/L 10/04/16 0.19 1 ND ND ND ND ND ND ND ND 3.2 ND ND ug/L 04/03/17 0.19 1 ND ND ND ND 0.55 J ND ND 0.77 J 3.5 ND ND 1,1-Dichloroethane ug/L 09/22/94 --5 ND ----ND ND ND ND ------ND NC 2L = 6 ug/L ug/L 11/08/94 --5 ND ----ND 17 ND ND ------ND (No EPA MCL)ug/L 01/18/95 --5 ND ----ND 13 ND ND ------ND ug/L 04/23/96 --5 ND ----ND 21 ND ND ------ND ug/L 06/17/97 --5 ND ----ND ND ND ND ------ND ug/L 10/16/97 --5 ND ----ND 13 ND ND ------ND ug/L 04/21/98 --5 ND ----ND 13 ND ND ------ND ug/L 04/07/99 --5 ND ----ND 17 ND ND ------ND ug/L 10/13/99 --5 ND ----ND 20 ND ND ------ND ug/L 04/05/00 --5 ND ----ND 26 ND ND ------ND ug/L 10/25/00 --5 ND ----ND 31 ND ND ------ND ug/L 04/04/01 --5 ND ----ND 39 ND ND ------ND ug/L 04/08/02 --5 ND ND --ND 15.6 ND ND ------ND ug/L 10/21/02 --5 ND ND --ND 35.6 ND ND ------ND ug/L 04/14/03 --5 ND ND --ND 12.8 ND ND ------ND ug/L 10/01/03 --5 ND ND --ND 6.1 ND ND ------ND ug/L 04/05/04 --5 ND ND --ND 13.5 ND ND ------ND ug/L 10/18/04 --5 ND ND --ND ND ND ND ------ND ug/L 04/07/05 --5 ND ND --ND -------------- ug/L 10/06/05 --5 ND ND --ND 16.4 ND ND ------ND ug/L 04/03/06 --5 ND ND --ND 5.4 ND ND ------ND ug/L 10/03/06 --5 ND ND --ND 12 ND ND ------ND ug/L 04/05/07 --5 ND ND --ND 6 ND ND ------ND ug/L 10/18/07 --5 ND 3.7 J --ND --2.2 J 1.2 J ------ND ug/L 04/29/08 --5 ND ----ND 7.8 1.7 J 2.5 J ------ND ug/L 10/23/08 --5 ND ----ND 15 2.6 J 1.4 J ------ND ug/L 04/07/09 --5 ND ----ND 6.8 2.5 J 3.0 J ------ND ug/L 10/19/09 --5 ND ----ND 11 2.6 J 1.1 J ------ND ug/L 04/28/10 --5 ND 21 --1.1 J 6.9 2.4 J 2.7 J ------ND ug/L 10/12/10 --5 ND ----0.59 J 12 3.9 J 1.5 J ------ND ug/L 04/11/11 --5 ND ----ND 5.8 3.7 J 1.7 J ------ND ug/L 10/04/11 --5 ND ----ND 13 5.6 1.9 J 26 23 ND ND ug/L 04/10/12 --5 ND ----ND 5.1 4.3 J 2.5 J ------ND ug/L 10/15/12 --5 ND ----ND 6.6 5.7 0.88 J ------ND ug/L 04/09/13 --5 ND ----ND 4.3 J 6.9 1.0 J ------ND ug/L 10/08/13 --5 ND ----ND 4.0 J 5.1 1.1 J ------ND ug/L 04/08/14 --5 ND ----ND 3.0 J 6.6 1.3 J ------ND ug/L 10/08/14 0.13 5 ND ----0.41 J 3.4 J 9.8 0.80 J ------ND ug/L 04/08/15 0.13 5 ND ----0.54 J 1.4 J 3.2 J ND ------ND ug/L 10/28/15 0.13 5 ND 18 1.2 J ND 3.1 J 11 0.90 J 59 12 ND ND ug/L 04/05/16 0.13 5 ND 6.7 1.9 J ND 2.0 J 6.8 1.4 J 23 7.5 ND ND ug/L 10/04/16 0.13 5 ND 3.8 J 1.8 J ND 2.3 J 10 0.81 J 21 8.7 ND ND ug/L 04/03/17 0.13 5 ND 9.8 2.4 J 0.46 J 2.1 J 10 0.86 J 36 10 ND ND 1,2-Dichloroethane ug/L 09/22/94 --5 ND ----ND ND ND ND ------ND NC 2L = 0.4 ug/L ug/L 11/08/94 --5 ND ----ND ND ND ND ------ND EPA MCL = 5 ug/L ug/L 01/18/95 --5 ND ----ND ND ND ND ------ND ug/L 04/23/96 --5 ND ----ND ND ND ND ------ND ug/L 06/17/97 --5 ND ----ND ND ND ND ------ND ug/L 10/16/97 --5 ND ----ND ND ND ND ------ND ug/L 04/21/98 --5 ND ----ND ND ND ND ------ND ug/L 04/07/99 --5 ND ----ND ND ND ND ------ND ug/L 10/13/99 --5 ND ----ND ND ND ND ------ND ug/L 04/05/00 --5 ND ----ND ND ND ND ------ND ug/L 10/25/00 --5 ND ----ND ND ND ND ------ND ug/L 04/04/01 --5 ND ----ND ND ND ND ------ND ug/L 04/08/02 --5 ND ND --ND ND ND ND ------ND ug/L 10/21/02 --5 ND ND --ND ND ND ND ------ND ug/L 04/14/03 --5 ND ND --ND ND ND ND ------ND ug/L 10/01/03 --5 ND ND --ND ND ND ND ------ND ug/L 04/05/04 --5 ND ND --ND ND ND ND ------ND ug/L 10/18/04 --5 ND ND --ND ND ND ND ------ND ug/L 04/07/05 --5 ND ND --ND ND ND ND ------ND ug/L 10/06/05 --5 ND ND --ND ND ND ND ------ND ug/L 04/03/06 --5 ND ND --ND ND ND ND ------ND ug/L 10/03/06 --5 ND ND --ND ND ND ND ------ND ug/L 04/05/07 --3 ND ND --ND ND ND ND ------ND ug/L 10/18/07 --1 ND ND --ND --ND ND ------ND ug/L 04/29/08 --1 ND ----ND ND ND ND ------ND ug/L 10/23/08 --1 ND ----ND ND ND ND ------ND ug/L 04/07/09 --1 ND ----ND ND ND ND ------ND ug/L 10/19/09 --1 ND ----ND ND ND ND ------ND ug/L 04/28/10 --1 ND ND --ND ND ND ND ------ND ug/L 10/12/10 --1 ND ----ND ND ND ND ------ND ug/L 04/11/11 --1 ND ----ND ND ND ND ------ND ug/L 10/04/11 --1 ND ----ND ND ND ND ND ND ND ND ug/L 04/10/12 --1 ND ----ND ND ND ND ------ND ug/L 10/15/12 --1 ND ----ND ND ND ND ------ND ug/L 04/09/13 --1 ND ----ND ND ND ND ------ND ug/L 10/08/13 --1 ND ----ND ND ND ND ------ND ug/L 04/08/14 --1 ND ----ND ND ND ND ------ND ug/L 10/08/14 0.21 1 ND ----ND ND ND ND ------ND ug/L 04/08/15 0.21 1 ND ----ND ND ND ND ------ND ug/L 10/28/15 0.21 1 ND ND ND ND ND ND ND ND ND ND ND ug/L 04/05/16 0.21 1 ND ND ND ND ND ND ND ND ND ND ND ug/L 10/04/16 0.21 1 ND ND ND ND ND ND ND ND ND ND ND ug/L 04/03/17 0.21 1 ND ND ND ND ND ND ND ND ND ND ND Blanks TABLE 9 Summary of Constituents of Concern Closed Randolph County Landfill, Permit No. 76-01 Detected Monitoring Constituent/Parameter Units Date Method Detection Limit SWS Reporting Limit Upgradient Well Downgradient Wells June 2017 2 of 3 141122017.101 0739612716.102 G:\PROJECTS\Waste Management\Randolph County\141122017 - Randolph Co LF - NC\Phase 101 - 1st SA WQM Event\600 CALCULATIONS\Tables April 2017.xlsx MW-5 MW-2 MW-3 MW-6 MW-7 MW-8 MW-9 MW-10S MW-10D MW-11S Blanks TABLE 9 Summary of Constituents of Concern Closed Randolph County Landfill, Permit No. 76-01 Detected Monitoring Constituent/Parameter Units Date Method Detection Limit SWS Reporting Limit Upgradient Well Downgradient Wells cis-1,2-Dichloroethene ug/L 09/22/94 --5 ND ----ND ND ND ND ------ND NC 2L = 70 ug/L ug/L 11/08/94 --5 ND ----ND ND ND ND ------ND EPA MCL = 70 ug/L ug/L 01/18/95 --5 ND ----ND ND ND ND ------ND ug/L 04/23/96 --5 ND ----ND ND ND ND ------ND ug/L 06/17/97 --5 ND ----ND ND ND ND ------ND ug/L 10/16/97 --5 ND ----ND ND ND ND ------ND ug/L 04/21/98 --5 ND ----ND ND ND ND ------ND ug/L 04/07/99 --5 ND ----ND ND ND ND ------ND ug/L 10/13/99 --5 ND ----ND ND ND ND ------ND ug/L 04/05/00 --5 ND ----ND ND ND ND ------ND ug/L 10/25/00 --5 ND ----ND ND ND ND ------ND ug/L 04/04/01 --5 ND ----ND ND ND ND ------ND ug/L 04/08/02 --5 ND ND --ND ND ND ND ------ND ug/L 10/21/02 --5 ND ND --ND ND ND ND ------ND ug/L 04/14/03 --5 ND ND --ND ND ND ND ------ND ug/L 10/01/03 --5 ND ND --ND ND ND ND ------ND ug/L 04/05/04 --5 ND ND --ND ND ND ND ------ND ug/L 10/18/04 --5 ND ND --ND ND ND ND ------ND ug/L 04/07/05 --5 ND ND --ND -------------- ug/L 10/06/05 --5 ND ND --ND ND ND ND ------ND ug/L 04/03/06 --5 ND ND --ND ND ND ND ------ND ug/L 10/03/06 --5 ND ND --ND ND ND ND ------ND ug/L 04/05/07 --5 ND ND --ND ND ND ND ------ND ug/L 10/18/07 --5 ND ND --ND --ND ND ------ND ug/L 04/29/08 --5 ND ----ND 0.63 J ND 1.8 J ------ND ug/L 10/23/08 --5 ND ----ND 1.4 J 0.40 J 0.80 J ------ND ug/L 04/07/09 --5 ND ----ND 0.49 J ND 1.8 J ------ND ug/L 10/19/09 --5 ND ----ND 1.6 J 0.48 J 0.73 J ------ND ug/L 04/28/10 --5 ND ND --ND 1.1 J 0.49 J 2.5 J ------ND ug/L 10/12/10 --5 ND ----ND 1.9 J 0.69 J 0.90 J ------ND ug/L 04/11/11 --5 ND ----ND 1.3 J 0.83 J 1.2 J ------ND ug/L 10/04/11 --5 ND ----ND 1.8 J 0.84 J 0.86 J 2.6 J 3.7 J ND ND ug/L 04/10/12 --5 ND ----ND 1.2 J 0.85 J 3.3 J ------ND ug/L 10/15/12 --5 ND ----ND 1.9 J 1.2 J 0.56 J ------ND ug/L 04/09/13 --5 ND ----ND 1.5 J 0.91 J ND ------ND ug/L 10/08/13 --5 ND ----ND 1.1 J 0.95 J 0.69 J ------ND ug/L 04/08/14 --5 ND ----ND 0.97 J 1.2 J 1.5 J ------ND ug/L 10/08/14 0.15 5 ND ----ND 1.2 J 1.8 J 0.46 J ------ND ug/L 04/08/15 0.15 5 ND ----ND 0.41 J 0.60 J ND ------ND ug/L 10/28/15 0.15 5 ND ND ND ND 1.1 J 2.2 J 0.53 J 6.3 1.4 J ND ND ug/L 04/05/16 0.15 5 ND ND ND ND 0.75 J 1.1 J 2.2 J 2.3 J 0.91 J ND ND ug/L 10/04/16 0.15 5 ND ND ND ND 1.0 J 2.3 J 0.57 J 2.8 J 2.7 J ND ND ug/L 04/03/17 0.15 5 ND ND ND ND 0.97 J 1.7 J 0.50 J 4.2 J 2.9 J ND ND Methylene chloride ug/L 09/22/94 --10 ND ----ND ND ND ND ------ND NC 2L = 5 ug/L ug/L 11/08/94 --10 ND ----ND ND ND ND ------ND EPA MCL = 5 ug/L ug/L 01/18/95 --10 ND ----ND ND ND ND ------ND ug/L 04/23/96 --10 ND ----ND ND ND ND ------ND ug/L 06/17/97 --10 ND ----ND ND ND ND ------ND ug/L 10/16/97 --10 ND ----ND ND ND ND ------ND ug/L 04/21/98 --10 ND ----ND ND ND ND ------ND ug/L 04/07/99 --10 ND ----ND ND ND ND ------ND ug/L 10/13/99 --10 ND ----ND ND ND ND ------ND ug/L 04/05/00 --10 ND ----ND 35 ND ND ------ND ug/L 10/25/00 --10 ND ----ND 44 ND ND ------ND ug/L 04/04/01 --10 ND ----ND 49 ND ND ------ND ug/L 04/08/02 --10 ND ND --ND 18.9 ND ND ------ND ug/L 10/21/02 --10 ND ND --ND 33.6 ND ND ------ND ug/L 04/14/03 --10 ND ND --ND 17.4 ND ND ------ND ug/L 10/01/03 --10 ND ND --ND ND ND ND ------ND ug/L 04/05/04 --10 ND ND --ND 14.6 ND ND ------ND ug/L 10/18/04 --10 ND ND --ND ND ND ND ------ND ug/L 04/07/05 --10 ND ND --ND ND ND ND ------ND ug/L 10/06/05 --10 ND ND --ND 10.4 ND ND ------ND ug/L 04/03/06 --10 ND ND --ND ND ND ND ------ND ug/L 10/03/06 --10 ND ND --ND ND ND ND ------ND ug/L 04/05/07 --5 ND ND --ND ND ND ND ------ND ug/L 10/18/07 --1 ND ND --ND --0.3 B ND ------0.2 J ug/L 04/29/08 --1 ND ----ND 7.0 ND ND ------ND ug/L 10/23/08 --1 ND ----ND 11 ND ND ------ND ug/L 04/07/09 --1 ND ----ND 5.4 ND ND ------ND ug/L 10/19/09 --1 ND ----ND 8.5 ND ND ------ND ug/L 04/28/10 --1 ND ND --ND 7.5 ND ND ------ND ug/L 10/12/10 --1 ND ----ND 12 ND ND ------ND ug/L 04/11/11 --1 ND ----ND 4.4 0.45 J ND ------ND ug/L 10/04/11 --1 ND ----ND 7.4 0.75 J ND 0.72 J 0.52 J ND ND ug/L 04/10/12 --1 ND ----ND 3.8 0.34 J ND ------ND ug/L 10/15/12 --1 ND ----ND 4.6 0.47 J ND ------ND ug/L 04/09/13 --1 ND ----ND 1.8 ND ND ------ND ug/L 10/08/13 --1 ND ----ND 0.40 J ND ND ------ND ug/L 04/08/14 --1 ND ----ND 0.97 J ND ND ------ND ug/L 10/08/14 0.23 1 ND ----ND ND ND ND ------ND ug/L 04/08/15 0.23 1 ND ----ND ND ND ND ------ND ug/L 10/28/15 0.23 1 ND ND ND ND ND ND ND 0.47 J ND ND ND ug/L 04/05/16 0.23 1 ND ND ND ND 1.2 ND ND 0.43 J ND ND ND ug/L 10/04/16 0.23 1 ND ND ND ND ND ND ND ND ND ND ND ug/L 04/03/17 0.23 1 ND ND ND ND ND ND ND ND ND ND ND 4-Methyl-2-pentanone ug/L 09/22/94 --50 ND ----ND ND ND ND ------ND GWPS = 560 ug/L ug/L 11/08/94 --50 ND ----ND ND ND ND ------ND EPA MCL = 5 ug/L ug/L 01/18/95 --50 ND ----ND ND ND ND ------ND ug/L 04/23/96 --50 ND ----ND ND ND ND ------ND ug/L 06/17/97 --50 ND ----ND ND ND ND ------ND ug/L 10/16/97 --50 ND ----ND ND ND ND ------ND ug/L 04/21/98 --50 ND ----ND ND ND ND ------ND ug/L 04/07/99 --50 ND ----ND ND ND ND ------ND ug/L 10/13/99 --50 ND ----ND ND ND ND ------ND ug/L 04/05/00 --50 ND ----ND ND ND ND ------ND ug/L 10/25/00 --50 ND ----ND ND ND ND ------ND ug/L 04/04/01 --50 ND ----ND ND ND ND ------ND ug/L 04/08/02 --50 ND ND --ND ND ND ND ------ND ug/L 10/21/02 --100 ND ND --ND ND ND ND ------ND ug/L 04/14/03 --100 ND ND --ND ND ND ND ------ND ug/L 10/01/03 --100 ND ND --ND ND ND ND ------ND ug/L 04/05/04 --100 ND ND --ND ND ND ND ------ND ug/L 10/18/04 --100 ND ND --ND ND ND ND ------ND ug/L 04/07/05 --100 ND ND --ND ND ND ND ------ND ug/L 10/06/05 --100 ND ND --ND ND ND ND ------ND ug/L 04/03/06 --100 ND ND --ND ND ND ND ------ND ug/L 10/03/06 --100 ND ND --ND ND ND ND ------ND ug/L 04/05/07 --100 ND ND --ND ND ND ND ------ND ug/L 10/18/07 --100 ND ND --ND --ND ND ------ND ug/L 04/29/08 --100 ND ----ND ND ND ND ------ND ug/L 10/23/08 --100 ND ----ND ND ND ND ------ND ug/L 04/07/09 --100 ND ----ND ND ND ND ------ND ug/L 10/19/09 --100 ND ----ND ND ND ND ------ND ug/L 04/28/10 --100 ND ND --ND ND ND ND ------ND ug/L 10/12/10 --100 ND ----ND ND ND ND ------ND ug/L 04/11/11 --100 ND ----ND ND ND ND ------ND ug/L 10/04/11 --100 ND ----ND ND ND ND ND ND ND ND ug/L 04/10/12 --100 ND ----ND ND ND ND ------ND ug/L 10/15/12 --100 ND ----ND ND ND ND ------ND ug/L 04/09/13 --100 ND ----ND ND ND ND ------ND ug/L 10/08/13 --100 ND ----ND ND ND ND ------ND ug/L 04/08/14 --100 ND ----ND ND ND ND ------ND ug/L 10/08/14 1.1 100 ND ----1.4 J ND ND ND ------ND ug/L 04/08/15 1.1 100 ND ----5.0 J ND ND ND ------ND Verification Event ug/L 05/26/15 1.1 100 ND ------------------ND ug/L 10/28/15 1.1 100 ND ND ND ND ND ND ND ND ND ND ND ug/L 04/05/16 1.1 100 ND ND ND ND ND ND ND ND ND ND ND ug/L 10/04/16 1.1 100 ND ND ND ND ND ND ND ND ND ND ND ug/L 04/03/17 1.1 100 ND ND ND ND ND ND ND ND ND ND ND Tetrachloroethene ug/L 09/22/94 --5 ND ----ND ND ND ND ------ND NC 2L = 0.7 ug/L ug/L 11/08/94 --5 ND ----ND ND ND ND ------ND EPA MCL = 5 ug/L ug/L 01/18/95 --5 ND ----ND ND ND ND ------ND ug/L 04/23/96 --5 ND ----ND ND ND ND ------ND ug/L 06/17/97 --5 ND ----ND ND ND ND ------ND ug/L 10/16/97 --5 ND ----ND ND ND ND ------ND ug/L 04/21/98 --5 ND ----ND ND ND ND ------ND ug/L 04/07/99 --5 ND ----ND ND ND ND ------ND ug/L 10/13/99 --5 ND ----ND ND ND ND ------ND ug/L 04/05/00 --5 ND ----ND ND ND ND ------ND ug/L 10/25/00 --5 ND ----ND ND ND ND ------ND ug/L 04/04/01 --5 ND ----ND ND ND ND ------ND ug/L 04/08/02 --5 ND ND --ND ND ND ND ------ND ug/L 10/21/02 --5 ND ND --ND ND ND ND ------ND ug/L 04/14/03 --5 ND ND --ND ND ND ND ------ND ug/L 10/01/03 --5 ND ND --ND ND ND ND ------ND ug/L 04/05/04 --5 ND ND --ND ND ND ND ------ND ug/L 10/18/04 --5 ND ND --ND ND ND ND ------ND ug/L 04/07/05 --5 ND ND --ND -------------- ug/L 10/06/05 --5 ND ND --ND ND ND ND ------ND ug/L 04/03/06 --5 ND ND --ND ND ND ND ------ND ug/L 10/03/06 --5 ND ND --ND ND ND ND ------ND ug/L 04/05/07 --3 ND ND --ND ND ND ND ------ND ug/L 10/18/07 --1 ND ND --ND --0.2 J 0.3 J ------ND ug/L 04/29/08 --1 ND ----ND ND ND ND ------ND ug/L 10/23/08 --1 ND ----ND ND ND ND ------ND ug/L 04/07/09 --1 ND ----ND ND ND ND ------ND ug/L 10/19/09 --1 ND ----ND ND ND ND ------ND ug/L 04/28/10 --1 ND 0.43 J --ND ND ND 0.49 J ------ND ug/L 10/12/10 --1 ND ----ND ND 0.48 J ND ------ND ug/L 04/11/11 --1 ND ----ND ND ND ND ------ND ug/L 10/04/11 --1 ND ----ND ND ND ND 2.8 ND ND ND ug/L 04/10/12 --1 ND ----ND ND 0.56 J ND ------ND ug/L 10/15/12 --1 ND ----ND ND 0.46 J ND ------ND ug/L 04/09/13 --1 ND ----ND ND 0.77 J ND ------ND ug/L 10/08/13 --1 ND ----ND ND 0.45 J ND ------ND ug/L 04/08/14 --1 ND ----ND ND 0.64 J ND ------ND ug/L 10/08/14 0.17 1 ND ----ND ND 0.71 J ND ------ND ug/L 04/08/15 0.17 1 ND ----ND ND ND ND ------ND ug/L 10/28/15 0.17 1 ND ND ND ND ND 0.98 J ND 7.0 ND ND ND ug/L 04/05/16 0.17 1 ND ND ND ND ND ND ND 1.0 ND ND ND ug/L 10/04/16 0.17 1 ND 0.53 J 0.44 J ND ND 0.66 J ND 1.3 ND ND ND ug/L 04/03/17 0.17 1 ND ND ND ND ND 0.63 J ND 1.6 ND ND ND June 2017 3 of 3 141122017.101 0739612716.102 G:\PROJECTS\Waste Management\Randolph County\141122017 - Randolph Co LF - NC\Phase 101 - 1st SA WQM Event\600 CALCULATIONS\Tables April 2017.xlsx MW-5 MW-2 MW-3 MW-6 MW-7 MW-8 MW-9 MW-10S MW-10D MW-11S Blanks TABLE 9 Summary of Constituents of Concern Closed Randolph County Landfill, Permit No. 76-01 Detected Monitoring Constituent/Parameter Units Date Method Detection Limit SWS Reporting Limit Upgradient Well Downgradient Wells Trichloroethene ug/L 09/22/94 --5 ND ----ND ND ND ND ------ND NC 2L = 3 ug/L ug/L 11/08/94 --5 ND ----ND ND ND ND ------ND EPA MCL = 5 ug/L ug/L 01/18/95 --5 ND ----ND ND ND ND ------ND ug/L 04/23/96 --5 ND ----ND ND ND ND ------ND ug/L 06/17/97 --5 ND ----ND ND ND ND ------ND ug/L 10/16/97 --5 ND ----ND ND ND ND ------ND ug/L 04/21/98 --5 ND ----ND ND ND ND ------ND ug/L 04/07/99 --5 ND ----ND ND ND ND ------ND ug/L 10/13/99 --5 ND ----ND ND ND ND ------ND ug/L 04/05/00 --5 ND ----ND ND ND ND ------ND ug/L 10/25/00 --5 ND ----ND ND ND ND ------ND ug/L 04/04/01 --5 ND ----ND ND ND ND ------ND ug/L 04/08/02 --5 ND ND --ND ND ND ND ------ND ug/L 10/21/02 --5 ND ND --ND ND ND ND ------ND ug/L 04/14/03 --5 ND ND --ND ND ND ND ------ND ug/L 10/01/03 --5 ND ND --ND ND ND ND ------ND ug/L 04/05/04 --5 ND ND --ND ND ND ND ------ND ug/L 10/18/04 --5 ND ND --ND ND ND ND ------ND ug/L 04/07/05 --5 ND ND --ND -------------- ug/L 10/06/05 --5 ND ND --ND ND ND ND ------ND ug/L 04/03/06 --5 ND ND --ND ND ND ND ------ND ug/L 10/03/06 --5 ND ND --ND ND ND ND ------ND ug/L 04/05/07 --3 ND ND --ND ND ND ND ------ND ug/L 10/18/07 --1 ND 0.5 J --ND --0.7 J 0.2 J ------ND ug/L 04/29/08 --1 ND ----ND ND 0.67 J 0.41 J ------ND ug/L 10/23/08 --1 ND ----ND 0.51 J 0.95 J ND ------ND ug/L 04/07/09 --1 ND ----ND ND 0.90 J 0.46 J ------ND ug/L 10/19/09 --1 ND ----ND 0.53 J 1.2 ND ------ND ug/L 04/28/10 --1 ND ND --ND ND 1.1 0.51 J ------ND ug/L 10/12/10 --1 ND ----ND 0.46 J 1.5 ND ------ND ug/L 04/11/11 --1 ND ----ND ND 1.4 ND ------ND ug/L 10/04/11 --1 ND ----ND ND 1.6 ND 2.2 ND ND ND ug/L 04/10/12 --1 ND ----ND ND 1.6 0.39 J ------ND ug/L 10/15/12 --1 ND ----ND ND 1.8 ND ------ND ug/L 04/09/13 --1 ND ----ND ND 2.4 ND ------ND ug/L 10/08/13 --1 ND ----ND ND 1.9 ND ------ND ug/L 04/08/14 --1 ND ----ND ND 2.3 ND ------ND ug/L 10/08/14 0.15 1 ND ----ND ND 2.7 ND ------ND ug/L 04/08/15 0.15 1 ND ----ND ND 0.96 J ND ------ND ug/L 10/28/15 0.15 1 0.50 J ----ND ND 3.1 ND 3.6 ----ND ug/L 04/05/16 0.15 1 ND ND ND ND ND 1.4 ND 0.99 J ND ND ND ug/L 10/04/16 0.15 1 ND ND 0.46 J ND ND 2.4 ND 1.4 ND ND ND ug/L 04/03/17 0.15 1 ND ND ND ND ND 2.9 ND 1.5 ND ND ND Vinyl chloride ug/L 09/22/94 --10 ND ----ND ND ND ND ------ND NC 2L = 0.03 ug/L ug/L 11/08/94 --10 ND ----ND ND ND ND ------ND EPA MCL = 2 ug/L ug/L 01/18/95 --10 ND ----ND ND ND ND ------ND ug/L 04/23/96 --10 ND ----ND ND ND ND ------ND ug/L 06/17/97 --10 ND ----ND ND ND ND ------ND ug/L 10/16/97 --10 ND ----ND ND ND ND ------ND ug/L 04/21/98 --10 ND ----ND ND ND ND ------ND ug/L 04/07/99 --10 ND ----ND ND ND ND ------ND ug/L 10/13/99 --10 ND ----ND ND ND ND ------ND ug/L 04/05/00 --10 ND ----ND ND ND ND ------ND ug/L 10/25/00 --10 ND ----ND ND ND ND ------ND ug/L 04/04/01 --10 ND ----ND ND ND ND ------ND ug/L 04/04/02 --10 ND ND --ND ND ND ND ------ND ug/L 10/21/02 --10 ND ND --ND ND ND ND ------ND ug/L 04/14/03 --10 ND ND --ND ND ND ND ------ND ug/L 10/01/03 --10 ND ND --ND ND ND ND ------ND ug/L 04/05/04 --10 ND ND --ND ND ND ND ------ND ug/L 10/18/04 --10 ND ND --ND ND ND ND ------ND ug/L 04/07/05 --10 ND ND --ND ND ND ND ------ND ug/L 10/06/05 --10 ND ND --ND ND ND ND ------ND ug/L 04/03/06 --10 ND ND --ND ND ND ND ------ND ug/L 10/03/06 --10 ND ND --ND ND ND ND ------ND ug/L 04/05/07 --10 ND ND --ND ND ND ND ------ND ug/L 10/18/07 --1 ND ND --ND --ND ND ------ND ug/L 04/29/08 --1 ND ----ND 0.41 J ND 0.54 J ------ND ug/L 10/23/08 --1 ND ----ND 0.93 J ND ND ------ND ug/L 04/07/09 --1 ND ----ND 0.46 J ND 0.71 J ------ND ug/L 10/19/09 --1 ND ----ND 1.2 ND ND ------ND ug/L 04/28/10 --1 ND ND --ND 0.63 J ND 0.64 J ------ND ug/L 10/12/10 --1 ND ----ND 1.0 ND ND ------ND ug/L 04/11/11 --1 ND ----ND 0.70 J ND ND ------ND ug/L 10/04/11 --1 ND ----ND 1.1 ND ND ND 0.63 J ND ND ug/L 04/10/12 --1 ND ----ND 0.51 J ND 0.34 J ------ND ug/L 10/15/12 --1 ND ----ND 1.0 ND ND ------ND ug/L 04/09/13 --1 ND ----ND 0.75 J ND ND ------ND ug/L 10/08/13 --1 ND ----ND 0.74 J ND ND ------ND ug/L 04/08/14 --1 ND ----ND 0.51 J ND ND ------ND ug/L 10/08/14 0.32 1 ND ----ND 0.52 J ND ND ------ND ug/L 04/08/15 0.32 1 ND ----ND ND ND ND ------ND ug/L 10/28/15 0.32 1 ND ND ND ND 0.48 J ND ND 1.3 ND ND ND ug/L 04/05/16 0.32 1 ND ND ND ND ND ND ND ND ND ND ND ug/L 10/04/16 0.32 1 ND ND ND ND ND ND ND ND 0.78 J ND ND ug/L 04/03/17 0.32 1 ND ND ND ND ND ND ND 0.70 J 0.96 J ND ND Notes:ug/L =micrograms per liter mg/L = milligrams per liter ND =Not detected at the stated reporting limit for data before October 2007 and not detected at the laboratory detection limit for data from October 2007 forward NM =Not measured J =estimated concentration B =Blank-qualified result -- =no data available # =EPA Action Level * =EPA Secondary MCL Blanks =field, trip and method blanks Bold Only =Concentration above current NC 2L Groundwater Standard or NC SWS Groundwater Protection Standard Shaded and Bold =Concentration above current NC 2L Groundwater Standard or NC SWS Groundwater Protection Standard and EPA MCL GWPS =Solid Waste Section Groundwater Protection Standard NC 2L =North Carolina 2L Groundwater Standard EPA MCL =US Environmental Protection Agency Maximum Contaminant Level SWS Reporting Limit =NCPQL or lab-specific reporting limit prior to October 2007 and NCSWSL starting in October 2007 Wells MW-4, MW-A1, MW-A2, and MW-A3 are not sampled as part of the compliance network. Historical data prior to April 2008 provided by the County as taken from historical reports from Hazen and Sawyer and Environment 1. FIGURE 67067067068066067 0650640 630 630 620 620 610 610 60 0600 590590 570570 58 0580 66066068068 0 6806 6 0 6 5 0 640i1i2i3 580.78MW-8MW-A3681.74657.84MW-5MW-7566.37MW-2NMMW-1613.94MW-6636.29MW-A2SW-1SW-2GM-5GM-1GM-2GM-3615.67MW-A1704.41MW-4566.78GM-4588.85MW-10D584.39MW-10S596.61MW-9566.25MW-11S565.51MW-11D565.79MW-369070069 0700 SITE LOCATION SW-3SW-4CONSULTANTDESIGNPREPAREDREVIEWAPPROVEDYYYY-MM-DDTITLEPROJECT No.Rev.PROJECTCLIENTPath: \\greensboro\CAD\_2014\141122015 - Randolph\PRODUCTION\_C - 2016 GW REPORT\ | File Name: 141122017A01.dwg IF THIS MEASUREMENT DOES NOT MATCH WHAT IS SHOWN, THE SHEET SIZE HAS BEEN MODIFIED FROM: ANSI D01 in141122017PHASE101FIGURE10 2017-4-20ALBMCGDYRRPKRANDOLPH COUNTY LANDFILLPERMIT NO. 76-01WASTE MANAGEMENTGROUNDWATER SURFACE CONTOUR MAPAPRIL 3, 2017SITE LOCATION MAP(NOT TO SCALE)0FEET150300SCALEEXISTING 10 FT GROUND SURFACE CONTOUREXISTING 2 FT GROUND SURFACE CONTOURAPPROXIMATE LIMITS OF WASTEEXISTING ROADGROUNDWATER ELEVATION 10 FT CONTOURSGROUNDWATER FLOW ARROWCOMPLIANCE MONITORING WELL AND GROUNDWATER ELEVATIONSNON-COMPLIANCE MONITORING WELL AND GROUNDWATER ELEVATIONSLANDFILL GAS MONITORING PROBESURFACE WATER MONITORING POINTNOT MEASUREDLEGENDNOTES1.TOPOGRAPHIC CONTOUR INTERVAL = 2 FEET2.GROUNDWATER SURFACE CONTOUR INTERVAL = 10 FEET3.GROUNDWATER ELEVATIONS MEASURED ON APRIL 3, 2017.4.GROUNDWATER CONTOURS BASED ON LINEAR INTERPOLATION BETWEEN ANDEXTRAPOLATION FROM KNOWN DATA, TOPOGRAPHIC CONTOURS, AND KNOWN FIELDCONDITIONS. THEREFORE, GROUNDWATER CONTOURS MAY NOT REFLECT ACTUALCONDITIONS.5.GROUNDWATER CONTOUR LINES SHOW THE WATER TABLE SHAPE AND ELEVATION. THESECONTOURS ARE INFERRED LINES FOLLOWING THE GROUNDWATER SURFACE AT ACONSTANT ELEVATION ABOVE SEA LEVEL. THE GROUNDWATER FLOW DIRECTION ISGENERALLY PERPENDICULAR TO THE GROUNDWATER SURFACE CONTOURS, SIMILAR TOTHE RELATIONSHIP BETWEEN SURFACE WATER FLOW AND TOPOGRAPHIC CONTOURS.6.MW-A1, MW-A2, MW-A3, MW-1, MW-2, MW-3, MW-4, MW-10D, MW-11S, AND MW-11D ARE NOTSAMPLED AS PART OF THE COMPLIANCE NETWORK.7.BASE MAP PROVIDED BY HAZEN AND SAWYER, INC. OVERALL GROUND SURFACETOPOGRAPHY OBTAINED FROM AERIAL SURVEY CONDUCTED BY KUCERA INTERNATIONALINC., WILLOUGHBY, OHIO ON 8/2/93.8.COORDINATE SYSTEM IS N.C. STATE PLANE GRID.640SW-1GM-1657.84MW-5i1636.29MW-A2PG C-399GOLDER ASSOCIATES NC, INC.NM APPENDIX A Groundwater and Surface Water Sampling Logs Compliance Monitoring Wells Corrective Action Monitoring Wells APPENDIX B April 2017 Groundwater and Surface Water Certifications-of-Analysis, Chain-of-Custody Forms and Laboratory Data Reviews Compliance Monitoring Wells Page 1 of 143 Page 2 of 143 Page 3 of 143 Page 4 of 143 Page 5 of 143 Page 6 of 143 Page 7 of 143 Page 8 of 143 Page 9 of 143 Page 10 of 143 Page 11 of 143 Page 12 of 143 Page 13 of 143 Page 14 of 143 Page 15 of 143 Page 16 of 143 Page 17 of 143 Page 18 of 143 Page 19 of 143 Page 20 of 143 Page 21 of 143 Page 22 of 143 Page 23 of 143 Page 24 of 143 Page 25 of 143 Page 26 of 143 Page 27 of 143 Page 28 of 143 Page 29 of 143 Page 30 of 143 Page 31 of 143 Page 32 of 143 Page 33 of 143 Page 34 of 143 Page 35 of 143 Page 36 of 143 Page 37 of 143 Page 38 of 143 Page 39 of 143 Page 40 of 143 Page 41 of 143 Page 42 of 143 Page 43 of 143 Page 44 of 143 Page 45 of 143 Page 46 of 143 Page 47 of 143 Page 48 of 143 Page 49 of 143 Page 50 of 143 Page 51 of 143 Page 52 of 143 Page 53 of 143 Page 54 of 143 Page 55 of 143 Page 56 of 143 Page 57 of 143 Page 58 of 143 Page 59 of 143 Page 60 of 143 Page 61 of 143 Page 62 of 143 Page 63 of 143 Page 64 of 143 Page 65 of 143 Page 66 of 143 Page 67 of 143 Page 68 of 143 Page 69 of 143 Page 70 of 143 Page 71 of 143 Page 72 of 143 Page 73 of 143 Page 74 of 143 Page 75 of 143 Page 76 of 143 Page 77 of 143 Page 78 of 143 Page 79 of 143 Page 80 of 143 Page 81 of 143 Page 82 of 143 Page 83 of 143 Page 84 of 143 Page 85 of 143 Page 86 of 143 Page 87 of 143 Page 88 of 143 Page 89 of 143 Page 90 of 143 Page 91 of 143 Page 92 of 143 Page 93 of 143 Page 94 of 143 Page 95 of 143 Page 96 of 143 Page 97 of 143 Page 98 of 143 Page 99 of 143 Page 100 of 143 Page 101 of 143 Page 102 of 143 Page 103 of 143 Page 104 of 143 Page 105 of 143 Page 106 of 143 Page 107 of 143 Page 108 of 143 Page 109 of 143 Page 110 of 143 Page 111 of 143 Page 112 of 143 Page 113 of 143 Page 114 of 143 Page 115 of 143 Page 116 of 143 Page 117 of 143 Page 118 of 143 Page 119 of 143 Page 120 of 143 Page 121 of 143 Page 122 of 143 Page 123 of 143 Page 124 of 143 Page 125 of 143 Page 126 of 143 Page 127 of 143 Page 128 of 143 Page 129 of 143 Page 130 of 143 Page 131 of 143 Page 132 of 143 Page 133 of 143 Page 134 of 143 Page 135 of 143 Page 136 of 143 Page 137 of 143 Page 138 of 143 Page 139 of 143 Page 140 of 143 Page 141 of 143 Page 142 of 143 Page 143 of 143 Page 1 of 1 Page 1 of 1 Page 1 of 1 GOLDER ASSOCIATES INC. QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 1 of 4 Project Name: Randolph County Landfill Project Reference Number: 0739612717.102 Sampling Event Date: April 3-4, 2017 Review Date: May 11, 2017 Initials: WB Report #: CA04579, CA05260, and CA05315 Person(s) performing the review are to initial each item on this form as acknowledgement of data acceptance, or as acknowledgement of a review issue. In the case of the latter, a brief explanation should follow the applicable item. Golder Associates Inc. has reviewed the laboratory certificates of analysis, chain-of-custody form, and laboratory provided sample group quality assurance and quality control data for the above referenced sample group to identify potential bias or inaccuracy, in general accordance with the following United States Environmental Protection Agency documents: • Region III Modifications to Functional Guidelines for Organic Data Review Multi-Media, Multi- Concentration, September 1994; • Region III Modifications to the Laboratory Data Validation Functional Guidelines for Evaluating Inorganic Analyses, April 1993; and • Laboratory Data Validation Functional Guidelines for Evaluating Inorganic Analyses, July 1998. COMPLIANCE ANALYTE LIST(S) (check all that apply) NC Closed Facility List (.500 Rules) NC C & D List (New Rules) NC Appendix I NC Appendix I + Detects NC Appendix II + Cyanide NC Subtitle D Leachate List Other: MNA Parameters 1.0 CHAIN OF CUSTODY (COC) REVIEW WB COC was properly signed by all parties. WB Correct project name and number are on the form. WB Sample receipt condition at laboratory was acceptable. WB Each sample and blank submitted for analysis appears in the report. GOLDER ASSOCIATES INC. QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 2 of 4 2.0 SAMPLE HOLDING TIMES WB Holding times for extraction and/or analysis were met for each analytical method (see below for reference). Review Criteria Method Analytes Holding Time SW-846 Method 8260 and 8011 VOCs 14 days SW-846 Methods 8270, 8080, 8081, 8082, and 8151 SVOCs, PCBs, pesticides and herbicides 7 days for extraction, 40 days from extraction for analysis SW-846 Methods 6000 and 7000 Series Metals except mercury 6 months (no temperature requirements) SW-846 Method 7470 Mercury 28 days SW-846 Method 376.1 Sulfide 7 days SW-846 Method 9010 Cyanide 14 days EPA Method 300 Nitrate/Sulfate 48 hours/28 days EPA Method 405.1 BOD 48 hours EPA Method 410.4 COD 28 days EPA Method 365.4 Phosphorous 28 days 3.0 LABORATORY QUALITY CONTROL REVIEW WB Laboratory analyzed at least one internal blank for each method, where applicable. WB Laboratory blank is interference-free. WB Surrogate recoveries are provided for each analytical method, where applicable. WB Surrogate recoveries for each method are within the acceptable limits (i.e., at least 50% of the surrogates were within range).  The 8151A surrogate spike recovery of 2,4-DCAA exceeded acceptance criteria for the MSD sample. WB MS/MSD/LCS data results are provided for each analytical method. WB MS/MSD/LCS recoveries for each method are within the acceptable limits (i.e., at least 1 of the 3 were within range).  The spike recovery of Trichloroethene was outside of control limits for the 8260B MS samples. The QC batches were approved based on acceptable LCS recovery of this analyte. Precision between duplicate spikes of Phenol exceeded acceptance criteria for the 8270D MS and MSD samples. The QC batch was approved based on acceptable LCS recovery of this analyte. The Continuing Calibration Verification sample (CCV) exhibited a high bias for 3-Nitroaniline, Dibenzo(a,h)anthracene, Famphur, Isodrin, and Parathion; however, these analytes were not detected in the associated samples, reducing the impact of the deviations. The CCV exhibited a low bias for 1,4-Phenylenediamine, 1- Naphthylamine, 2-Acetylaminofluorene, 2-Naphthylamine, 4-Aminobiphenyl, and 5-Nitro- o-toluidine; the reported results should be considered minimum estimates.  The spike recoveries of the 8081B analytes exhibited a high bias in the LCS sample; however, these analytes were not detected in the associated samples, reducing the impact of the deviations.  Precision between duplicate spikes of 2,4-D exceeded acceptance criteria for the 8151 A MS and MSD samples. The QC batch was approved based on acceptable LCS recovery of this analyte.  The spike recovery of Sulfide was outside of control limits for the MS and MSD samples. The QC batch was approved based on acceptable LCS recovery of this analyte. GOLDER ASSOCIATES INC. QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 3 of 4 4.0 ANALYTE LISTS/METHODS WB The proper number of constituents are present for each analyte list as identified above (including detects where applicable). WB Proper EPA SW-846 analytical methods were used for analysis. 5.0 DATA REPORTING WB All analytical reporting associated with the event was performed by the contracted lab. WB Trip, field and/or equipment, and laboratory blank results have all been reported. All detects for blanks are listed below by constituent. All laboratory method blanks, if any, have been ‘flagged’ with a ‘B’ where detected in other samples as appropriate and a laboratory narrative was provided. If the sample was flagged by the laboratory and is not within 5X of the concentration in the blank (or 10X for commonly detected laboratory contaminants-acetone, methylene chloride and phthalates), list below with explanation if flags should be removed. If flags need to be added for samples, also list below.  Field Blank • Chromium @ 4.45 ug/L (J), add B flags to:  MW-8 @ 3.01 ug/L (J) • Copper @ 3.21 ug/L (J), add B flags to:  MW-6 @ 4.23 ug/L (J)  MW-9 @ 4.00 ug/L (J)  SW-3 @ 4.76 ug/L (J)  SW-4 @ 5.01 ug/L (J) WB It is clear from the laboratory report that samples have or have not been diluted during analysis, and if the samples have been diluted, the result is reported as a multiple of the dilution (e.g., a sample diluted 10x resulting in an analytical detection of 1.0 should be reported as 10). Those that have been diluted are listed below with the dilution factor. WB The report provides the reporting limit for each constituent. WB The results were reported at or below their proper reporting limits (i.e., MDLs with SWSLs reported). Those that are not reported correctly are listed below (by constituent) with the proper reporting limit listed beside them. State if the reporting limit error is due to dilutions. WB No organic constituents were reported above their respective SWSLs, and no inorganic or organic constituents were reported above their respective NC 2L Drinking Water Standards/GWPS in wells, or field/equipment/trip blanks, or above applicable surface water standards in surface water points.  1,1-Dichloroethane (NC 2L = 6 ug/L) (SWSL = 5 ug/L) • MW-8 @ 10 ug/L • MW-10S @ 36 ug/L  Benzene (NC 2L = 1 ug/L) (SWSL = 1 ug/L) • MW-7 @ 1.4 ug/L  Cobalt (SWS GWPS = 1 ug/L) (SWSL = 10 ug/L) • MW-7 @ 5.17 ug/L • MW-10S @ 1.56 ug/L • MW-6 @ 1.24 ug/L  Tetrachloroethene (NC 2L = 0.7 ug/L) (SWSL = 1 ug/L) • MW-10S @ 1.6 ug/L GOLDER ASSOCIATES INC. QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 4 of 4  Thallium (NC 2L = 0.28 ug/L) (SWSL = 5.5 ug/L) • MW-9 @ 0.338 ug/L  Vanadium(NC 2L = 25 ug/L) (SWSL = 0.3 ug/L) • MW-5 @ 4.72 ug/L  Vinyl Chloride (NC 2L = 0.03 ug/L) (SWSL = 1 ug/L) • MW-10S @ 0.70 ug/L WB No inorganic and organic constituents were detected in a well or surface water point at quantified concentrations outside of their historical range (more than 5X previous concentrations or first-time detections).  Thallium detection MW-9 @ 0.338 ug/L • 1 historical detection (04/07/09) @ 0.037 ug/L (B) WB Other report issues/Communications with laboratory/etc.: Corrective Action Monitoring Wells Page 1 of 53 Page 2 of 53 Page 3 of 53 Page 4 of 53 Page 5 of 53 Page 6 of 53 Page 7 of 53 Page 8 of 53 Page 9 of 53 Page 10 of 53 Page 11 of 53 Page 12 of 53 Page 13 of 53 Page 14 of 53 Page 15 of 53 Page 16 of 53 Page 17 of 53 Page 18 of 53 Page 19 of 53 Page 20 of 53 Page 21 of 53 Page 22 of 53 Page 23 of 53 Page 24 of 53 Page 25 of 53 Page 26 of 53 Page 27 of 53 Page 28 of 53 Page 29 of 53 Page 30 of 53 Page 31 of 53 Page 32 of 53 Page 33 of 53 Page 34 of 53 Page 35 of 53 Page 36 of 53 Page 37 of 53 Page 38 of 53 Page 39 of 53 Page 40 of 53 Page 41 of 53 Page 42 of 53 Page 43 of 53 Page 44 of 53 Page 45 of 53 Page 46 of 53 Page 47 of 53 Page 48 of 53 Page 49 of 53 Page 50 of 53 Page 51 of 53 Page 52 of 53 Page 53 of 53 Page 1 of 1 Page 1 of 1 GOLDER ASSOCIATES INC. QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 1 of 3 Project Name: Randolph County Landfill Project Reference Number: 0739612717.102 Sampling Event Date: April 3-4, 2017 Review Date: May 4, 2017 Initials: WB Report #: CA04578, CA05256 Person(s) performing the review are to initial each item on this form as acknowledgement of data acceptance, or as acknowledgement of a review issue. In the case of the latter, a brief explanation should follow the applicable item. Golder Associates Inc. has reviewed the laboratory certificates of analysis, chain-of-custody form, and laboratory provided sample group quality assurance and quality control data for the above referenced sample group to identify potential bias or inaccuracy, in general accordance with the following United States Environmental Protection Agency documents: • Region III Modifications to Functional Guidelines for Organic Data Review Multi-Media, Multi- Concentration, September 1994; • Region III Modifications to the Laboratory Data Validation Functional Guidelines for Evaluating Inorganic Analyses, April 1993; and • Laboratory Data Validation Functional Guidelines for Evaluating Inorganic Analyses, July 1998. COMPLIANCE ANALYTE LIST(S) (check all that apply) NC Closed Facility List (.500 Rules) NC C & D List (New Rules) NC Appendix I NC Appendix I + Detects NC Appendix II NC Subtitle D Leachate List Other: MNA Parameters 1.0 CHAIN OF CUSTODY (COC) REVIEW WB COC was properly signed by all parties. WB Correct project name and number are on the form. WB Sample receipt condition at laboratory was acceptable. WB Each sample and blank submitted for analysis appears in the report. GOLDER ASSOCIATES INC. QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 2 of 3 2.0 SAMPLE HOLDING TIMES WB Holding times for extraction and/or analysis were met for each analytical method (see below for reference). Review Criteria Method Analytes Holding Time SW-846 Method 8260 and 8011 VOCs 14 days SW-846 Methods 8270, 8080, 8081, 8082, and 8151 SVOCs, PCBs, pesticides and herbicides 7 days for extraction, 40 days from extraction for analysis SW-846 Methods 6000 and 7000 Series Metals except mercury 6 months (no temperature requirements) SW-846 Method 7470 Mercury 28 days SW-846 Method 376.1 Sulfide 7 days SW-846 Method 9010 Cyanide 14 days EPA Method 300 Nitrate/Sulfate 48 hours/28 days EPA Method 405.1 BOD 48 hours EPA Method 410.4 COD 28 days EPA Method 365.4 Phosphorous 28 days 3.0 LABORATORY QUALITY CONTROL REVIEW WB Laboratory analyzed at least one internal blank for each method, where applicable. WB Laboratory blank is interference-free. WB Surrogate recoveries are provided for each analytical method, where applicable. WB Surrogate recoveries for each method are within the acceptable limits (i.e., at least 50% of the surrogates were within range). WB MS/MSD/LCS data results are provided for each analytical method. WB MS/MSD/LCS recoveries for each method are within the acceptable limits (i.e., at least 1 of the 3 were within range).  The spike recovery of Trichloroethene was outside of control limits for the 8260B MS samples. The QC batches were approved based on acceptable LCS recovery of this analyte.  The spike recoveries of COD, Sulfate, and Sulfide were outside of control limits for the MS and MSD samples. The QC batches were approved based on acceptable LCS recovery of these analytes. 4.0 ANALYTE LISTS/METHODS WB The proper number of constituents are present for each analyte list as identified above (including detects where applicable). WB Proper EPA SW-846 analytical methods were used for analysis. 5.0 DATA REPORTING WB All analytical reporting associated with the event was performed by the contracted lab. WB Trip, field and/or equipment, and laboratory blank results have all been reported. All detects for blanks are listed below by constituent. All laboratory method blanks, if any, have been ‘flagged’ with a ‘B’ where detected in other samples as appropriate and a laboratory narrative was provided. If the GOLDER ASSOCIATES INC. QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 3 of 3 sample was flagged by the laboratory and is not within 5X of the concentration in the blank (or 10X for commonly detected laboratory contaminants-acetone, methylene chloride and phthalates), list below with explanation if flags should be removed. If flags need to be added for samples, also list below. WB It is clear from the laboratory report that samples have or have not been diluted during analysis, and if the samples have been diluted, the result is reported as a multiple of the dilution (e.g., a sample diluted 10x resulting in an analytical detection of 1.0 should be reported as 10). Those that have been diluted are listed below with the dilution factor.  Alkalinity • MW-5 (5X) • MW-10D (5X)  Chloride • MW-10D (3X) WB The report provides the reporting limit for each constituent. WB The results were reported at or below their proper reporting limits (i.e., MDLs with SWSLs reported). Those that are not reported correctly are listed below (by constituent) with the proper reporting limit listed beside them. State if the reporting limit error is due to dilutions. WB No organic constituents were reported above their respective SWSLs, and no inorganic or organic constituents were reported above their respective NC 2L Drinking Water Standards/GWPS in wells, or field/equipment/trip blanks, or above applicable surface water standards in surface water points.  1,1-Dichloroethane (NC 2L = 6 ug/L) (SWSL = 5 ug/L) • MW-2 @ 9.8 ug/L • MW-10D @ 10 ug/L  1,4-Dichlorobenzene (NC 2L = 6 ug/L) (SWSL = 1 ug/L) • MW-10D @ 3.5 ug/L WB No inorganic and organic constituents were detected in a well or surface water point at quantified concentrations outside of their historical range (more than 5X previous concentrations or first-time detections). WB Other report issues/Communications with laboratory/etc.: Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 22236 - 912694 Page 1 of 18 David Reedy Golder Associates5B Oak Branch Dr Greensboro, NC 27407 April 14, 2017 RE: Pace Workorder: RANDOLPH COUNTY LF/0739612716 Dear David Reedy: 22236 Enclosed are the analytical results for sample(s) received by the laboratory on Wednesday, April 05, 2017. Results reported herein conform to the most current NELAC standards, where applicable, unless otherwisenarrated in the body of the report. If you have any questions concerning this report, please feel free to contact me. Sincerely, Enclosures Ruth Welsh 04/14/2017Ruth.Welsh@pacelabs.com Total Number of Pages ____ As a valued client we would appreciate your comments on our service. Please email PAESfeedback@pacelabs.com. Customer Service Representative 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC. 20 Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 22236 - 912694 Page 2 of 18 LABORATORY ACCREDITATIONS & CERTIFICATIONS Pennsylvania Department of Environmental Protection, Bureau of Laboratories 02-00538 NELAP Non-Potable Water and Solid & Hazardous Waste Accreditor: Accreditation ID: Scope: West Virginia Department of Environmental Protection, Division of Water and Waste Management 395 Non-Potable Water Accreditor: Accreditation ID: Scope: South Carolina Department of Health and Environmental Control, Office of EnvironmentalLaboratory Certification 89009003 Clean Water Act (CWA); Resource Conservation and Recovery Act (RCRA) Accreditor: Accreditation ID: Scope: NELAP: New Jersey, Department of Environmental Protection PA026 Non-Potable Water; Solid and Chemical Materials Accreditor: Accreditation ID: Scope: NELAP: New York, Department of Health Wadsworth Center 11815 Non-Potable Water; Solid and Hazardous Waste Accreditor: Accreditation ID: Scope: State of Connecticut, Department of Public Health, Division of Environmental Health PH-0263 Clean Water Act (CWA) Resource Conservation and Recovery Act (RCRA) Accreditor: Accreditation ID: Scope: NELAP: Texas, Commission on Environmental Quality T104704453-09-TX Non-Potable Water Accreditor: Accreditation ID: Scope: State of New Hampshire 299409 Non-potable water Accreditor: Accreditation ID: Scope: State of Georgia Chapter 391-3-26 As per the Georgia EPD Rules and Regulations for Commercial Laboratories, PAES isaccredited by the Pennsylvania Department of Environmental Protection Bureau of Laboratories under the National Environmental Laboratory Approval Program (NELAC). Accreditor: Accreditation ID: Scope: 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC. Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 22236 - 912694 Page 3 of 18 SAMPLE SUMMARY Workorder:22236 RANDOLPH COUNTY LF/0739612716 Lab ID Sample ID Matrix Date Collected Date Received 222360001 MW-10D Water 4/4/2017 12:14 4/5/2017 12:15 222360002 MW-10D Bubble Strip 4/4/2017 12:14 4/5/2017 12:15 222360003 MW-10S Water 4/4/2017 13:38 4/5/2017 12:15 222360004 MW-10S Bubble Strip 4/4/2017 13:38 4/5/2017 12:15 222360005 MW-2 Water 4/4/2017 15:28 4/5/2017 12:15 222360006 MW-2 Bubble Strip 4/4/2017 15:28 4/5/2017 12:15 222360007 MW-11S Water 4/4/2017 16:38 4/5/2017 12:15 222360008 MW-11S Bubble Strip 4/4/2017 16:38 4/5/2017 12:15 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC. Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 22236 - 912694 Page 4 of 18 ANALYTICAL RESULTS Workorder:22236 RANDOLPH COUNTY LF/0739612716 4/5/2017 12:15 MW-10D Matrix:Water RegLmtParameters Lab ID: Sample ID: RegLmt 222360001 Results Units PQL DF ByAnalyzedMDL Qualifiers Date Collected: Date Received: 4/4/2017 12:14 EAcceptors - PAES Analysis Desc: Dionex Tech Note 10Mtd A Analytical Method: Dionex Tech Note 10 Mtd A Ferrous Iron 7.0 mg/l 0.50 1 4/5/2017 16:25 MD n0.046 RISK - PAES Analysis Desc: AM20GAX Analytical Method: AM20GAX Carbon Dioxide 250 mg/l 5.0 1 4/8/2017 07:34 TD n0.24 Analysis Desc: EPA RSK175 Analytical Method: EPA RSK175 Methane 94 ug/l 0.50 1 4/7/2017 08:57 AK B0.019 Ethane 1.3 ug/l 0.20 1 4/7/2017 08:57 AK0.0050 Ethene 0.55 ug/l 0.20 1 4/7/2017 08:57 AK0.0070 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC. Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 22236 - 912694 Page 5 of 18 ANALYTICAL RESULTS Workorder:22236 RANDOLPH COUNTY LF/0739612716 4/5/2017 12:15 MW-10D Matrix:Bubble Strip RegLmtParameters Lab ID: Sample ID: RegLmt 222360002 Results Units PQL DF ByAnalyzedMDL Qualifiers Date Collected: Date Received: 4/4/2017 12:14 RISK - PAES Analysis Desc: AM20GAX Analytical Method: AM20GAX Hydrogen 1.9 nM 0.60 1 4/13/2017 11:35 MM n0.075 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC. Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 22236 - 912694 Page 6 of 18 ANALYTICAL RESULTS Workorder:22236 RANDOLPH COUNTY LF/0739612716 4/5/2017 12:15 MW-10S Matrix:Water RegLmtParameters Lab ID: Sample ID: RegLmt 222360003 Results Units PQL DF ByAnalyzedMDL Qualifiers Date Collected: Date Received: 4/4/2017 13:38 EAcceptors - PAES Analysis Desc: Dionex Tech Note 10Mtd A Analytical Method: Dionex Tech Note 10 Mtd A Ferrous Iron <0.50 mg/l 0.50 1 4/5/2017 17:45 MD n0.046 RISK - PAES Analysis Desc: AM20GAX Analytical Method: AM20GAX Carbon Dioxide 150 mg/l 5.0 1 4/8/2017 07:47 TD n0.24 Analysis Desc: EPA RSK175 Analytical Method: EPA RSK175 Methane 180 ug/l 0.50 1 4/7/2017 09:08 AK B0.019 Ethane <0.20 ug/l 0.20 1 4/7/2017 09:08 AK0.0050 Ethene <0.20 ug/l 0.20 1 4/7/2017 09:08 AK0.0070 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC. Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 22236 - 912694 Page 7 of 18 ANALYTICAL RESULTS Workorder:22236 RANDOLPH COUNTY LF/0739612716 4/5/2017 12:15 MW-10S Matrix:Bubble Strip RegLmtParameters Lab ID: Sample ID: RegLmt 222360004 Results Units PQL DF ByAnalyzedMDL Qualifiers Date Collected: Date Received: 4/4/2017 13:38 RISK - PAES Analysis Desc: AM20GAX Analytical Method: AM20GAX Hydrogen 2.1 nM 0.60 1 4/13/2017 11:48 MM n0.075 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC. Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 22236 - 912694 Page 8 of 18 ANALYTICAL RESULTS Workorder:22236 RANDOLPH COUNTY LF/0739612716 4/5/2017 12:15 MW-2 Matrix:Water RegLmtParameters Lab ID: Sample ID: RegLmt 222360005 Results Units PQL DF ByAnalyzedMDL Qualifiers Date Collected: Date Received: 4/4/2017 15:28 EAcceptors - PAES Analysis Desc: Dionex Tech Note 10Mtd A Analytical Method: Dionex Tech Note 10 Mtd A Ferrous Iron 0.67 mg/l 0.50 1 4/5/2017 18:12 MD n0.046 RISK - PAES Analysis Desc: AM20GAX Analytical Method: AM20GAX Carbon Dioxide 120 mg/l 5.0 1 4/8/2017 07:59 TD n0.24 Analysis Desc: EPA RSK175 Analytical Method: EPA RSK175 Methane 260 ug/l 0.50 1 4/7/2017 09:18 AK B0.019 Ethane <0.20 ug/l 0.20 1 4/7/2017 09:18 AK0.0050 Ethene <0.20 ug/l 0.20 1 4/7/2017 09:18 AK0.0070 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC. Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 22236 - 912694 Page 9 of 18 ANALYTICAL RESULTS Workorder:22236 RANDOLPH COUNTY LF/0739612716 4/5/2017 12:15 MW-2 Matrix:Bubble Strip RegLmtParameters Lab ID: Sample ID: RegLmt 222360006 Results Units PQL DF ByAnalyzedMDL Qualifiers Date Collected: Date Received: 4/4/2017 15:28 RISK - PAES Analysis Desc: AM20GAX Analytical Method: AM20GAX Hydrogen 2.2 nM 0.60 1 4/13/2017 12:01 MM n0.075 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC. Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 22236 - 912694 Page 10 of 18 ANALYTICAL RESULTS Workorder:22236 RANDOLPH COUNTY LF/0739612716 4/5/2017 12:15 MW-11S Matrix:Water RegLmtParameters Lab ID: Sample ID: RegLmt 222360007 Results Units PQL DF ByAnalyzedMDL Qualifiers Date Collected: Date Received: 4/4/2017 16:38 EAcceptors - PAES Analysis Desc: Dionex Tech Note 10Mtd A Analytical Method: Dionex Tech Note 10 Mtd A Ferrous Iron <0.50 mg/l 0.50 1 4/5/2017 18:37 MD n0.046 RISK - PAES Analysis Desc: AM20GAX Analytical Method: AM20GAX Carbon Dioxide 57 mg/l 5.0 1 4/8/2017 08:12 TD n0.24 Analysis Desc: EPA RSK175 Analytical Method: EPA RSK175 Methane 2.5 ug/l 0.50 1 4/7/2017 09:29 AK B0.019 Ethane <0.20 ug/l 0.20 1 4/7/2017 09:29 AK0.0050 Ethene <0.20 ug/l 0.20 1 4/7/2017 09:29 AK0.0070 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC. Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 22236 - 912694 Page 11 of 18 ANALYTICAL RESULTS Workorder:22236 RANDOLPH COUNTY LF/0739612716 4/5/2017 12:15 MW-11S Matrix:Bubble Strip RegLmtParameters Lab ID: Sample ID: RegLmt 222360008 Results Units PQL DF ByAnalyzedMDL Qualifiers Date Collected: Date Received: 4/4/2017 16:38 RISK - PAES Analysis Desc: AM20GAX Analytical Method: AM20GAX Hydrogen 6.0 nM 0.60 1 4/13/2017 12:16 MM n0.075 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC. Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 22236 - 912694 Page 12 of 18 ANALYTICAL RESULTS QUALIFIERS Workorder:22236 RANDOLPH COUNTY LF/0739612716 DEFINITIONS/QUALIFIERS U J Indicates the compound was analyzed for, but not detected at or above the noted concentration. Estimated concentration greater than the set method detection limit (MDL) and less than the set reporting limit (PQL). MDL Method Detection Limit. Can be used synonymously with LOD; Limit Of Detection. PQL Practical Quanitation Limit. Can be used synonymously with LOQ; Limit Of Quantitation. ND Not detected at or above reporting limit. DF Dilution Factor. S Surrogate. RPD Relative Percent Difference. % Rec Percent Recovery. The laboratory does not hold NELAP/TNI accreditation for this method or analyte.n The analyte was detected in the associated blank.B 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC. Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 22236 - 912694 Page 13 of 18 QUALITY CONTROL DATA Workorder:22236 RANDOLPH COUNTY LF/0739612716 QC Batch: QC Batch Method: EACC/2461 Dionex Tech Note 10 Mtd A Analysis Method:Dionex Tech Note 10 Mtd A Associated Lab Samples:222360001, 222360003, 222360005, 222360007 METHOD BLANK:48045 Parameter Units Result Blank Limit Reporting Qualifiers EAcceptors Ferrous Iron <0.50mg/l 0.50 n LABORATORY CONTROL SAMPLE: Parameter Units Conc. Spike Result LCS Qualifiers LCS % Rec % Rec Limits 48046 EAcceptors Ferrous Iron 10mg/l 10 n10490-110 MATRIX SPIKE & MATRIX SPIKE DUPLICATE: Parameter Units Conc. Spike Result MS 48047 48048 MSD Result % Rec MS MSD % Rec % Rec Limit RPD RPD Max QualifiersResult Original 222360001Original: EAcceptors Ferrous Iron mg/l 10 18 105 70-130 n17986.9 207 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC. Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 22236 - 912694 Page 14 of 18 QUALITY CONTROL DATA Workorder:22236 RANDOLPH COUNTY LF/0739612716 QC Batch: QC Batch Method: DISG/6032 EPA RSK175 Analysis Method:EPA RSK175 Associated Lab Samples:222360001, 222360003, 222360005, 222360007 METHOD BLANK:48067 Parameter Units Result Blank Limit Reporting Qualifiers RISK Methane <0.50ug/l 0.50 B Ethane <0.20ug/l 0.20 Ethene <0.20ug/l 0.20 LABORATORY CONTROL SAMPLE & LCSD: Parameter Units Conc. Spike Result LCS 48068 48069 LCSD Result % Rec LCS LCSD % Rec % Rec Limit RPD RPD Max Qualifiers RISK Methane ug/l 44 43 97 85-115 B4296120 Ethane ug/l 83 80 97 85-1158096 1 20 Ethene ug/l 78 76 98 85-1157597 1 20 SAMPLE DUPLICATE: Parameter Units Result DUP Qualifiers Max RPD 48072 Result Original RPD Original:222360001 RISK Methane 94ug/l 98 B204.8 Ethane 1.3ug/l 1.3 201.4 Ethene 0.55ug/l 0.58 205 SAMPLE DUPLICATE: Parameter Units Result DUP Qualifiers Max RPD 48073 Result Original RPD Original:222370001 RISK Methane 84ug/l 94 B2011 Ethane 0ug/l 0 200 Ethene 0ug/l 0 200 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC. Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 22236 - 912694 Page 15 of 18 QUALITY CONTROL DATA Workorder:22236 RANDOLPH COUNTY LF/0739612716 QC Batch: QC Batch Method: DISG/6035 AM20GAX Analysis Method:AM20GAX Associated Lab Samples:222360001, 222360003, 222360005, 222360007 METHOD BLANK:48092 Parameter Units Result Blank Limit Reporting Qualifiers RISK Carbon Dioxide <5.0mg/l 5.0 n LABORATORY CONTROL SAMPLE & LCSD: Parameter Units Conc. Spike Result LCS 48093 48094 LCSD Result % Rec LCS LCSD % Rec % Rec Limit RPD RPD Max Qualifiers RISK Carbon Dioxide mg/l 120 130 109 80-120 n1201062.8 20 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC. Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 22236 - 912694 Page 16 of 18 QUALITY CONTROL DATA Workorder:22236 RANDOLPH COUNTY LF/0739612716 QC Batch: QC Batch Method: DISG/6045 AM20GAX Analysis Method:AM20GAX Associated Lab Samples:222360002, 222360004, 222360006, 222360008 METHOD BLANK:48191 Parameter Units Result Blank Limit Reporting Qualifiers RISK Hydrogen <0.60nM 0.60 n LABORATORY CONTROL SAMPLE & LCSD: Parameter Units Conc. Spike Result LCS 48193 48195 LCSD Result % Rec LCS LCSD % Rec % Rec Limit RPD RPD Max Qualifiers RISK Hydrogen nM 24 24 97 80-120 n23952.1 20 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC. Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 22236 - 912694 Page 17 of 18 QUALITY CONTROL DATA QUALIFIERS Workorder:22236 RANDOLPH COUNTY LF/0739612716 QUALITY CONTROL PARAMETER QUALIFIERS The analyte was detected in the associated blank.B The laboratory does not hold NELAP/TNI accreditation for this method or analyte.n 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC. Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 22236 - 912694 Page 18 of 18 QUALITY CONTROL DATA CROSS REFERENCE TABLE Workorder:22236 RANDOLPH COUNTY LF/0739612716 Lab ID Sample ID Prep Method Analysis MethodPrep Batch Batch Analysis 222360001 MW-10D EACC/2461Dionex Tech Note 10Mtd A 222360003 MW-10S EACC/2461Dionex Tech Note 10Mtd A 222360005 MW-2 EACC/2461Dionex Tech Note 10Mtd A 222360007 MW-11S EACC/2461Dionex Tech Note 10Mtd A 222360001 MW-10D DISG/6032EPA RSK175 222360003 MW-10S DISG/6032EPA RSK175 222360005 MW-2 DISG/6032EPA RSK175 222360007 MW-11S DISG/6032EPA RSK175 222360001 MW-10D DISG/6035AM20GAX 222360003 MW-10S DISG/6035AM20GAX 222360005 MW-2 DISG/6035AM20GAX 222360007 MW-11S DISG/6035AM20GAX 222360002 MW-10D DISG/6045AM20GAX 222360004 MW-10S DISG/6045AM20GAX 222360006 MW-2 DISG/6045AM20GAX 222360008 MW-11S DISG/6045AM20GAX 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC. Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 22237 - 912715 Page 1 of 19 David Reedy Golder Associates5B Oak Branch Dr Greensboro, NC 27407 April 14, 2017 RE: Pace Workorder: RANDOLPH COUNTY LF/0739612716 Dear David Reedy: 22237 Enclosed are the analytical results for sample(s) received by the laboratory on Wednesday, April 05, 2017. Results reported herein conform to the most current NELAC standards, where applicable, unless otherwisenarrated in the body of the report. If you have any questions concerning this report, please feel free to contact me. Sincerely, Enclosures Ruth Welsh 04/14/2017Ruth.Welsh@pacelabs.com Total Number of Pages ____ As a valued client we would appreciate your comments on our service. Please email PAESfeedback@pacelabs.com. Customer Service Representative 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC. 22 Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 22237 - 912715 Page 2 of 19 LABORATORY ACCREDITATIONS & CERTIFICATIONS Pennsylvania Department of Environmental Protection, Bureau of Laboratories 02-00538 NELAP Non-Potable Water and Solid & Hazardous Waste Accreditor: Accreditation ID: Scope: West Virginia Department of Environmental Protection, Division of Water and Waste Management 395 Non-Potable Water Accreditor: Accreditation ID: Scope: South Carolina Department of Health and Environmental Control, Office of EnvironmentalLaboratory Certification 89009003 Clean Water Act (CWA); Resource Conservation and Recovery Act (RCRA) Accreditor: Accreditation ID: Scope: NELAP: New Jersey, Department of Environmental Protection PA026 Non-Potable Water; Solid and Chemical Materials Accreditor: Accreditation ID: Scope: NELAP: New York, Department of Health Wadsworth Center 11815 Non-Potable Water; Solid and Hazardous Waste Accreditor: Accreditation ID: Scope: State of Connecticut, Department of Public Health, Division of Environmental Health PH-0263 Clean Water Act (CWA) Resource Conservation and Recovery Act (RCRA) Accreditor: Accreditation ID: Scope: NELAP: Texas, Commission on Environmental Quality T104704453-09-TX Non-Potable Water Accreditor: Accreditation ID: Scope: State of New Hampshire 299409 Non-potable water Accreditor: Accreditation ID: Scope: State of Georgia Chapter 391-3-26 As per the Georgia EPD Rules and Regulations for Commercial Laboratories, PAES isaccredited by the Pennsylvania Department of Environmental Protection Bureau of Laboratories under the National Environmental Laboratory Approval Program (NELAC). Accreditor: Accreditation ID: Scope: 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC. Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 22237 - 912715 Page 3 of 19 SAMPLE SUMMARY Workorder:22237 RANDOLPH COUNTY LF/0739612716 Lab ID Sample ID Matrix Date Collected Date Received 222370001 MW-3 Water 4/3/2017 12:39 4/5/2017 12:15 222370002 MW-3 Bubble Strip 4/3/2017 12:39 4/5/2017 12:15 222370003 MW-5 Water 4/3/2017 09:43 4/5/2017 12:15 222370004 MW-5 Bubble Strip 4/3/2017 09:43 4/5/2017 12:15 222370005 MW-7 Water 4/3/2017 15:53 4/5/2017 12:15 222370006 MW-7 Bubble Strip 4/3/2017 15:53 4/5/2017 12:15 222370007 MW-8 Water 4/3/2017 10:53 4/5/2017 12:15 222370008 MW-8 Bubble Strip 4/3/2017 10:53 4/5/2017 12:15 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC. Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 22237 - 912715 Page 4 of 19 PROJECT SUMMARY Workorder:22237 RANDOLPH COUNTY LF/0739612716 Workorder Comments Samples were received 04/05/2017, 2 days into the analysis holding time period. Samples 22237 (0001, 0003, 0005, 0007) wereanalyzed outside the hold time of 48 hours from collection for the Ferrous Iron. Method Dionex Tech Note 10 Mtd A. 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC. Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 22237 - 912715 Page 5 of 19 ANALYTICAL RESULTS Workorder:22237 RANDOLPH COUNTY LF/0739612716 4/5/2017 12:15 MW-3 Matrix:Water RegLmtParameters Lab ID: Sample ID: RegLmt 222370001 Results Units PQL DF ByAnalyzedMDL Qualifiers Date Collected: Date Received: 4/3/2017 12:39 EAcceptors - PAES Analysis Desc: Dionex Tech Note 10Mtd A Analytical Method: Dionex Tech Note 10 Mtd A Ferrous Iron 1.8 mg/l 0.50 1 4/5/2017 19:03 MD n,H20.046 RISK - PAES Analysis Desc: AM20GAX Analytical Method: AM20GAX Carbon Dioxide 48 mg/l 5.0 1 4/8/2017 08:26 TD n0.24 Analysis Desc: EPA RSK175 Analytical Method: EPA RSK175 Methane 84 ug/l 0.50 1 4/7/2017 09:39 AK B0.019 Ethane <0.20 ug/l 0.20 1 4/7/2017 09:39 AK0.0050 Ethene <0.20 ug/l 0.20 1 4/7/2017 09:39 AK0.0070 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC. Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 22237 - 912715 Page 6 of 19 ANALYTICAL RESULTS Workorder:22237 RANDOLPH COUNTY LF/0739612716 4/5/2017 12:15 MW-3 Matrix:Bubble Strip RegLmtParameters Lab ID: Sample ID: RegLmt 222370002 Results Units PQL DF ByAnalyzedMDL Qualifiers Date Collected: Date Received: 4/3/2017 12:39 RISK - PAES Analysis Desc: AM20GAX Analytical Method: AM20GAX Hydrogen 2.1 nM 0.60 1 4/13/2017 12:34 MM n0.075 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC. Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 22237 - 912715 Page 7 of 19 ANALYTICAL RESULTS Workorder:22237 RANDOLPH COUNTY LF/0739612716 4/5/2017 12:15 MW-5 Matrix:Water RegLmtParameters Lab ID: Sample ID: RegLmt 222370003 Results Units PQL DF ByAnalyzedMDL Qualifiers Date Collected: Date Received: 4/3/2017 09:43 EAcceptors - PAES Analysis Desc: Dionex Tech Note 10Mtd A Analytical Method: Dionex Tech Note 10 Mtd A Ferrous Iron <0.50 mg/l 0.50 1 4/5/2017 19:29 MD n,H20.046 RISK - PAES Analysis Desc: AM20GAX Analytical Method: AM20GAX Carbon Dioxide 61 mg/l 5.0 1 4/8/2017 08:39 TD n0.24 Analysis Desc: EPA RSK175 Analytical Method: EPA RSK175 Methane <0.50 ug/l 0.50 1 4/7/2017 09:52 AK B0.019 Ethane <0.20 ug/l 0.20 1 4/7/2017 09:52 AK0.0050 Ethene <0.20 ug/l 0.20 1 4/7/2017 09:52 AK0.0070 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC. Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 22237 - 912715 Page 8 of 19 ANALYTICAL RESULTS Workorder:22237 RANDOLPH COUNTY LF/0739612716 4/5/2017 12:15 MW-5 Matrix:Bubble Strip RegLmtParameters Lab ID: Sample ID: RegLmt 222370004 Results Units PQL DF ByAnalyzedMDL Qualifiers Date Collected: Date Received: 4/3/2017 09:43 RISK - PAES Analysis Desc: AM20GAX Analytical Method: AM20GAX Hydrogen 2.4 nM 0.60 1 4/13/2017 12:48 MM n0.075 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC. Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 22237 - 912715 Page 9 of 19 ANALYTICAL RESULTS Workorder:22237 RANDOLPH COUNTY LF/0739612716 4/5/2017 12:15 MW-7 Matrix:Water RegLmtParameters Lab ID: Sample ID: RegLmt 222370005 Results Units PQL DF ByAnalyzedMDL Qualifiers Date Collected: Date Received: 4/3/2017 15:53 EAcceptors - PAES Analysis Desc: Dionex Tech Note 10Mtd A Analytical Method: Dionex Tech Note 10 Mtd A Ferrous Iron 1.5 mg/l 0.50 1 4/5/2017 19:55 MD n,H20.046 RISK - PAES Analysis Desc: AM20GAX Analytical Method: AM20GAX Carbon Dioxide 430 mg/l 5.0 1 4/8/2017 08:51 TD n0.24 Analysis Desc: EPA RSK175 Analytical Method: EPA RSK175 Methane 5600 ug/l 50 100 4/7/2017 12:12 AK d,B1.9 Ethane 0.53 ug/l 0.20 1 4/7/2017 10:03 AK0.0050 Ethene <0.20 ug/l 0.20 1 4/7/2017 10:03 AK0.0070 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC. Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 22237 - 912715 Page 10 of 19 ANALYTICAL RESULTS Workorder:22237 RANDOLPH COUNTY LF/0739612716 4/5/2017 12:15 MW-7 Matrix:Bubble Strip RegLmtParameters Lab ID: Sample ID: RegLmt 222370006 Results Units PQL DF ByAnalyzedMDL Qualifiers Date Collected: Date Received: 4/3/2017 15:53 RISK - PAES Analysis Desc: AM20GAX Analytical Method: AM20GAX Hydrogen 3.3 nM 0.60 1 4/13/2017 13:01 MM n0.075 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC. Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 22237 - 912715 Page 11 of 19 ANALYTICAL RESULTS Workorder:22237 RANDOLPH COUNTY LF/0739612716 4/5/2017 12:15 MW-8 Matrix:Water RegLmtParameters Lab ID: Sample ID: RegLmt 222370007 Results Units PQL DF ByAnalyzedMDL Qualifiers Date Collected: Date Received: 4/3/2017 10:53 EAcceptors - PAES Analysis Desc: Dionex Tech Note 10Mtd A Analytical Method: Dionex Tech Note 10 Mtd A Ferrous Iron <0.50 mg/l 0.50 1 4/5/2017 20:21 MD n,H20.046 RISK - PAES Analysis Desc: AM20GAX Analytical Method: AM20GAX Carbon Dioxide 74 mg/l 5.0 1 4/8/2017 09:03 TD n0.24 Analysis Desc: EPA RSK175 Analytical Method: EPA RSK175 Methane <0.50 ug/l 0.50 1 4/7/2017 10:33 AK B0.019 Ethane <0.20 ug/l 0.20 1 4/7/2017 10:33 AK0.0050 Ethene <0.20 ug/l 0.20 1 4/7/2017 10:33 AK0.0070 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC. Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 22237 - 912715 Page 12 of 19 ANALYTICAL RESULTS Workorder:22237 RANDOLPH COUNTY LF/0739612716 4/5/2017 12:15 MW-8 Matrix:Bubble Strip RegLmtParameters Lab ID: Sample ID: RegLmt 222370008 Results Units PQL DF ByAnalyzedMDL Qualifiers Date Collected: Date Received: 4/3/2017 10:53 RISK - PAES Analysis Desc: AM20GAX Analytical Method: AM20GAX Hydrogen 2.1 nM 0.60 1 4/13/2017 13:13 MM n0.075 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC. Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 22237 - 912715 Page 13 of 19 ANALYTICAL RESULTS QUALIFIERS Workorder:22237 RANDOLPH COUNTY LF/0739612716 DEFINITIONS/QUALIFIERS U J Indicates the compound was analyzed for, but not detected at or above the noted concentration. Estimated concentration greater than the set method detection limit (MDL) and less than the set reporting limit (PQL). MDL Method Detection Limit. Can be used synonymously with LOD; Limit Of Detection. PQL Practical Quanitation Limit. Can be used synonymously with LOQ; Limit Of Quantitation. ND Not detected at or above reporting limit. DF Dilution Factor. S Surrogate. RPD Relative Percent Difference. % Rec Percent Recovery. The laboratory does not hold NELAP/TNI accreditation for this method or analyte.n The analyte was detected in the associated blank.B The sample was received or analysis was requested outside the method specific holding time.H2 The analyte concentration was determined from a dilution.d 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC. Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 22237 - 912715 Page 14 of 19 QUALITY CONTROL DATA Workorder:22237 RANDOLPH COUNTY LF/0739612716 QC Batch: QC Batch Method: EACC/2461 Dionex Tech Note 10 Mtd A Analysis Method:Dionex Tech Note 10 Mtd A Associated Lab Samples:222370001, 222370003, 222370005, 222370007 METHOD BLANK:48045 Parameter Units Result Blank Limit Reporting Qualifiers EAcceptors Ferrous Iron <0.50mg/l 0.50 n LABORATORY CONTROL SAMPLE: Parameter Units Conc. Spike Result LCS Qualifiers LCS % Rec % Rec Limits 48046 EAcceptors Ferrous Iron 10mg/l 10 n10490-110 MATRIX SPIKE & MATRIX SPIKE DUPLICATE: Parameter Units Conc. Spike Result MS 48047 48048 MSD Result % Rec MS MSD % Rec % Rec Limit RPD RPD Max QualifiersResult Original 222360001Original: EAcceptors Ferrous Iron mg/l 10 18 105 70-130 n17986.9 207 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC. Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 22237 - 912715 Page 15 of 19 QUALITY CONTROL DATA Workorder:22237 RANDOLPH COUNTY LF/0739612716 QC Batch: QC Batch Method: DISG/6032 EPA RSK175 Analysis Method:EPA RSK175 Associated Lab Samples:222370001, 222370003, 222370005, 222370007 METHOD BLANK:48067 Parameter Units Result Blank Limit Reporting Qualifiers RISK Methane <0.50ug/l 0.50 B Ethane <0.20ug/l 0.20 Ethene <0.20ug/l 0.20 LABORATORY CONTROL SAMPLE & LCSD: Parameter Units Conc. Spike Result LCS 48068 48069 LCSD Result % Rec LCS LCSD % Rec % Rec Limit RPD RPD Max Qualifiers RISK Methane ug/l 44 43 97 85-115 B4296120 Ethane ug/l 83 80 97 85-1158096 1 20 Ethene ug/l 78 76 98 85-1157597 1 20 SAMPLE DUPLICATE: Parameter Units Result DUP Qualifiers Max RPD 48072 Result Original RPD Original:222360001 RISK Methane 94ug/l 98 B204.8 Ethane 1.3ug/l 1.3 201.4 Ethene 0.55ug/l 0.58 205 SAMPLE DUPLICATE: Parameter Units Result DUP Qualifiers Max RPD 48073 Result Original RPD Original:222370001 RISK Methane 84ug/l 94 B2011 Ethane 0ug/l 0 200 Ethene 0ug/l 0 200 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC. Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 22237 - 912715 Page 16 of 19 QUALITY CONTROL DATA Workorder:22237 RANDOLPH COUNTY LF/0739612716 QC Batch: QC Batch Method: DISG/6035 AM20GAX Analysis Method:AM20GAX Associated Lab Samples:222370001, 222370003, 222370005, 222370007 METHOD BLANK:48092 Parameter Units Result Blank Limit Reporting Qualifiers RISK Carbon Dioxide <5.0mg/l 5.0 n LABORATORY CONTROL SAMPLE & LCSD: Parameter Units Conc. Spike Result LCS 48093 48094 LCSD Result % Rec LCS LCSD % Rec % Rec Limit RPD RPD Max Qualifiers RISK Carbon Dioxide mg/l 120 130 109 80-120 n1201062.8 20 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC. Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 22237 - 912715 Page 17 of 19 QUALITY CONTROL DATA Workorder:22237 RANDOLPH COUNTY LF/0739612716 QC Batch: QC Batch Method: DISG/6045 AM20GAX Analysis Method:AM20GAX Associated Lab Samples:222370002, 222370004, 222370006, 222370008 METHOD BLANK:48191 Parameter Units Result Blank Limit Reporting Qualifiers RISK Hydrogen <0.60nM 0.60 n LABORATORY CONTROL SAMPLE & LCSD: Parameter Units Conc. Spike Result LCS 48193 48195 LCSD Result % Rec LCS LCSD % Rec % Rec Limit RPD RPD Max Qualifiers RISK Hydrogen nM 24 24 97 80-120 n23952.1 20 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC. Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 22237 - 912715 Page 18 of 19 QUALITY CONTROL DATA QUALIFIERS Workorder:22237 RANDOLPH COUNTY LF/0739612716 QUALITY CONTROL PARAMETER QUALIFIERS The analyte was detected in the associated blank.B The laboratory does not hold NELAP/TNI accreditation for this method or analyte.n 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC. Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 22237 - 912715 Page 19 of 19 QUALITY CONTROL DATA CROSS REFERENCE TABLE Workorder:22237 RANDOLPH COUNTY LF/0739612716 Lab ID Sample ID Prep Method Analysis MethodPrep Batch Batch Analysis 222370001 MW-3 EACC/2461Dionex Tech Note 10Mtd A 222370003 MW-5 EACC/2461Dionex Tech Note 10Mtd A 222370005 MW-7 EACC/2461Dionex Tech Note 10Mtd A 222370007 MW-8 EACC/2461Dionex Tech Note 10Mtd A 222370001 MW-3 DISG/6032EPA RSK175 222370003 MW-5 DISG/6032EPA RSK175 222370005 MW-7 DISG/6032EPA RSK175 222370007 MW-8 DISG/6032EPA RSK175 222370001 MW-3 DISG/6035AM20GAX 222370003 MW-5 DISG/6035AM20GAX 222370005 MW-7 DISG/6035AM20GAX 222370007 MW-8 DISG/6035AM20GAX 222370002 MW-3 DISG/6045AM20GAX 222370004 MW-5 DISG/6045AM20GAX 222370006 MW-7 DISG/6045AM20GAX 222370008 MW-8 DISG/6045AM20GAX 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC. GOLDER ASSOCIATES INC. QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 1 of 3 Project Name: Randolph County Landfill Project Reference Number: 0739612717.102 Sampling Event Date: April 3-4, 2017 Review Date: May 4, 2017 Initials: WB Report #: 22236, 22237 Person(s) performing the review are to initial each item on this form as acknowledgement of data acceptance, or as acknowledgement of a review issue. In the case of the latter, a brief explanation should follow the applicable item. Golder Associates Inc. has reviewed the laboratory certificates of analysis, chain-of-custody form, and laboratory provided sample group quality assurance and quality control data for the above referenced sample group to identify potential bias or inaccuracy, in general accordance with the following United States Environmental Protection Agency documents: • Region III Modifications to Functional Guidelines for Organic Data Review Multi-Media, Multi- Concentration, September 1994; • Region III Modifications to the Laboratory Data Validation Functional Guidelines for Evaluating Inorganic Analyses, April 1993; and • Laboratory Data Validation Functional Guidelines for Evaluating Inorganic Analyses, July 1998. COMPLIANCE ANALYTE LIST(S) (check all that apply) NC Closed Facility List (.500 Rules) NC C & D List (New Rules) NC Appendix I NC Appendix I + Detects NC Appendix II NC Subtitle D Leachate List Other: MNA Parameters 1.0 CHAIN OF CUSTODY (COC) REVIEW WB COC was properly signed by all parties. WB Correct project name and number are on the form. WB Sample receipt condition at laboratory was acceptable. WB Each sample and blank submitted for analysis appears in the report. GOLDER ASSOCIATES INC. QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 2 of 3 2.0 SAMPLE HOLDING TIMES WB Holding times for extraction and/or analysis were met for each analytical method (see below for reference). Review Criteria Method Analytes Holding Time SW-846 Method 8260 and 8011 VOCs 14 days SW-846 Methods 8270, 8080, 8081, 8082, and 8151 SVOCs, PCBs, pesticides and herbicides 7 days for extraction, 40 days from extraction for analysis SW-846 Methods 6000 and 7000 Series Metals except mercury 6 months (no temperature requirements) SW-846 Method 7470 Mercury 28 days SW-846 Method 376.1 Sulfide 7 days SW-846 Method 9010 Cyanide 14 days EPA Method 300 Nitrate/Sulfate 48 hours/28 days EPA Method 405.1 BOD 48 hours EPA Method 410.4 COD 28 days EPA Method 365.4 Phosphorous 28 days 3.0 LABORATORY QUALITY CONTROL REVIEW WB Laboratory analyzed at least one internal blank for each method, where applicable. WB Laboratory blank is interference-free. WB Surrogate recoveries are provided for each analytical method, where applicable. WB Surrogate recoveries for each method are within the acceptable limits (i.e., at least 50% of the surrogates were within range). WB MS/MSD/LCS data results are provided for each analytical method. WB MS/MSD/LCS recoveries for each method are within the acceptable limits (i.e., at least 1 of the 3 were within range). 4.0 ANALYTE LISTS/METHODS WB The proper number of constituents are present for each analyte list as identified above (including detects where applicable). WB Proper EPA SW-846 analytical methods were used for analysis. 5.0 DATA REPORTING WB All analytical reporting associated with the event was performed by the contracted lab. WB Trip, field and/or equipment, and laboratory blank results have all been reported. All detects for blanks are listed below by constituent. All laboratory method blanks, if any, have been ‘flagged’ with a ‘B’ where detected in other samples as appropriate and a laboratory narrative was provided. If the sample was flagged by the laboratory and is not within 5X of the concentration in the blank (or 10X for commonly detected laboratory contaminants-acetone, methylene chloride and phthalates), list below with explanation if flags should be removed. If flags need to be added for samples, also list below. GOLDER ASSOCIATES INC. QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 3 of 3 WB It is clear from the laboratory report that samples have or have not been diluted during analysis, and if the samples have been diluted, the result is reported as a multiple of the dilution (e.g., a sample diluted 10x resulting in an analytical detection of 1.0 should be reported as 10). Those that have been diluted are listed below with the dilution factor. WB The report provides the reporting limit for each constituent. WB The results were reported at or below their proper reporting limits (i.e., MDLs with SWSLs reported). Those that are not reported correctly are listed below (by constituent) with the proper reporting limit listed beside them. State if the reporting limit error is due to dilutions. WB No organic constituents were reported above their respective SWSLs, and no inorganic or organic constituents were reported above their respective NC 2L Drinking Water Standards/GWPS in wells, or field/equipment/trip blanks, or above applicable surface water standards in surface water points. WB No inorganic and organic constituents were detected in a well or surface water point at quantified concentrations outside of their historical range (more than 5X previous concentrations or first-time detections). WB Other report issues/Communications with laboratory/etc.: APPENDIX C EPA Natural Attenuation Screening Protocol Forms and BIOCHLOR Monitored Natural Attenuation Analysis for April 2017 Sampling Event Reviewed By: DYR Prepared By: WB Project #: 0739612716 DATE: 4/3/17 Appendix C-1 Title: MW-5 MNA SCREENING April 2017 Baseline MNA Evaluation Randolph County Landfill, Permit No. 76-01 Reviewed By: DYR Prepared By: WB Project #: 0739612716 DATE: 4/3/17 Appendix C-2 Title: MW-2 MNA SCREENING April 2017 Baseline MNA Evaluation Randolph County Landfill, Permit No. 76-01 Reviewed By: DYR Prepared By: WB Project #: 0739612716 DATE: 4/3/17 Appendix C-3 Title: MW-3 MNA SCREENING April 2017 Baseline MNA Evaluation Randolph County Landfill, Permit No. 76-01 Reviewed By: DYR Prepared By: WB Project #: 0739612716 DATE: 4/3/17 Appendix C-4 Title: MW-7 MNA SCREENING April 2017 Baseline MNA Evaluation Randolph County Landfill, Permit No. 76-01 Reviewed By: DYR Prepared By: WB Project #: 0739612716 DATE: 4/3/17 Appendix C-5 Title: MW-8 MNA SCREENING April 2017 Baseline MNA Evaluation Randolph County Landfill, Permit No. 76-01 Reviewed By: DYR Prepared By: WB Project #: 0739612716 DATE: 4/3/17 Appendix C-6 Title: MW-10S MNA SCREENING April 2017 Baseline MNA Evaluation Randolph County Landfill, Permit No. 76-01 Reviewed By: DYR Prepared By: WB Project #: 0739612716 DATE: 4/3/17 Appendix C-7 Title: MW-10D MNA SCREENING April 2017 Baseline MNA Evaluation Randolph County Landfill, Permit No. 76-01 Reviewed By: DYR Prepared By: WB Project #: 0739612716 DATE: 4/3/17 Appendix C-8 Title: MW-11S MNA SCREENING April 2017 Baseline MNA Evaluation Randolph County Landfill, Permit No. 76-01 Reviewed By: DYR Prepared By: WB Project# 0739612716 DATE: 4/3/17 Appendix C-9 Title: BIOCHLOR DATA ENTRY SHEETS FOR WELLS MW-8 AND MW-3 April 2017 Baseline MNA Evaluation Randolph County Landfill, Permit No. 76-01 Reviewed By: DYR Prepared By: WB Project# 0739612716 DATE: 4/3/17 Appendix C-10 Title: BIOCHLOR MODEL FOR WELLS MW-8 AND MW-3 April 2017 Baseline MNA Evaluation Randolph County Landfill, Permit No. 76-01 Reviewed By: DYR Prepared By: WB Project# 0739612716 DATE: 4/3/17 Appendix C-11 Title: BIOCHLOR DATA ENTRY SHEETS FOR WELLS MW-7, MW-2, AND MW-11S April 2017 Baseline MNA Evaluation Randolph County Landfill, Permit No. 76-01 Reviewed By: DYR Prepared By: WB Project# 0739612716 DATE: 4/3/17 Appendix C-12 Title: BIOCHLOR MODEL FOR WELLS MW-7, MW-2, AND MW-11S April 2017 Baseline MNA Evaluation Randolph County Landfill, Permit No. 76-01 Reviewed By: DYR Prepared By: WB Project# 0739612716 DATE: 4/3/17 Appendix C-13 Title: BIOCHLOR DATA ENTRY SHEETS FOR WELLS MW-10S, MW-10D, AND SW-2 April 2017 Baseline MNA Evaluation Randolph County Landfill, Permit No. 76-01 Reviewed By: DYR Prepared By: WB Project# 0739612716 DATE: 4/3/17 Appendix C-14 Title: BIOCHLOR MODEL FOR WELLS MW-10S, MW-10D, AND SW-2 April 2017 Baseline MNA Evaluation Randolph County Landfill, Permit No. 76-01 Golder, Golder Associates and the GA globe design are trademarks of Golder Associates Corporation Golder Associates NC, Inc. 5B Oak Branch Drive Greensboro, NC 27407 USA Tel: (336) 852-4903 Fax: (336) 852-4904