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HomeMy WebLinkAbout5503_LincolnCoCDLF_GWMR_DIN27917_20161017 (2)October 2016 Semi-Annual Monitoring Report Lincoln County Landfill - Permit # 55-03 Crouse, North Carolina S&ME Project No. 1356-07-004 Prepared for: Lincoln County 5291 Crouse Road Crouse, North Carolina 28033 Prepared by: S&ME, Inc. 9751 Southern Pine Boulevard Charlotte, NC 28273 January 13, 2017 S&ME, Inc. | 9751 Southern Pine Boulevard | Charlotte, NC 28273 | p 704.523.4726 | f 704.525.3953 | www.smeinc.com January 13, 2017 Lincoln County 5291 Crouse Road Crouse, North Carolina 28033 Attention:Mr. Mark Bivins Reference:October 2016 Semi-Annual Monitoring Report Lincoln County Landfill Permit # 55-03 Crouse, North Carolina S&ME Project No. 1356-07-004 Dear Mr. Bivins: S&ME Inc. (S&ME) has completed the October 2016 Semi-Annual Monitoring and Reporting for the Lincoln County Landfill. This report presents the results of the second monitoring event of the year for the facility. S&ME appreciates the continued opportunity to provide services to you and Lincoln County. If you have any questions or need additional information regarding this report, please contact us at (704) 523-4726. Sincerely, S&ME, Inc. Jasmine Tayouga, E.I.Edmund Q.B. Henriques, L.G. Staff Professional Senior Geologist NC Registration No. 1216 Cc: Jaclynne Drummond, NCDENR – Solid Waste Section October 2016 Semi-Annual Monitoring Report Lincoln County Landfill Permit # 55-03 Crouse, North Carolina S&ME Project No. 1356-07-004 January 13, 2017 ii Table of Contents 1.0 Introduction............................................................................................................1 2.0 Groundwater Levels and Flow............................................................................1 3.0 Analytical Data ......................................................................................................1 3.1 Groundwater Monitoring and Sampling......................................................................1 3.1.1 MSW Area “E” and Phase 1...............................................................................................1 3.1.1.1 Volatile Organic Compounds (VOCs)...........................................................................2 3.1.1.2 Inorganic Constituents (Metals).....................................................................................3 3.1.2 MSW Phase 2......................................................................................................................4 3.1.2.1 Volatile Organic Compounds (VOCs)...........................................................................4 3.1.2.2 Inorganic Constituents (Metals).....................................................................................4 3.1.3 MSW Phase 3......................................................................................................................4 3.1.3.1 Volatile Organic Compounds (VOCs)...........................................................................4 3.1.3.2 Inorganic Constituents (Metals).....................................................................................5 3.1.4 C&D Landfill Phase 1 and 2...............................................................................................5 3.1.4.1 Volatile Organic Compounds (VOCs)...........................................................................5 3.1.4.2 Inorganic Constituents (Metals).....................................................................................5 3.1.4.3 Classical Chemistry Compounds...................................................................................6 3.2 Surface Water Sampling..................................................................................................6 3.2.1 Surface Water Locations SW-1 through SW-5...................................................................6 3.2.2 Surface Water Location SW-6.............................................................................................6 3.3 Leachate Sampling............................................................................................................7 4.0 Statistical Analysis................................................................................................7 4.1 Volatile Organic Compounds (VOCs)...........................................................................7 4.2 Total Metals.......................................................................................................................8 5.0 Methane Readings.................................................................................................8 October 2016 Semi-Annual Monitoring Report Lincoln County Landfill Permit # 55-03 Crouse, North Carolina S&ME Project No. 1356-07-004 January 13, 2017 iii Appendices Appendix I – Drawings Appendix II –Tables Appendix III – Well Sampling Logs and Laboratory Reports Appendix IV – Statistical Analysis Procedures Appendix V – Graphs Depicting Concentrations over Time for Wells with a Statistically Significant Increase Appendix VI – Monthly Methane Data (April 2016 – October 2016) October 2016 Semi-Annual Monitoring Report Lincoln County Landfill Permit # 55-03 Crouse, North Carolina S&ME Project No. 1356-07-004 January 13, 2017 1 1.0 Introduction S&ME, Inc. (S&ME) was contracted by Lincoln County to provide groundwater, surface water, and leachate monitoring services at the Lincoln County Landfill located at 5291 Crouse Road in Crouse, North Carolina. This semi-annual monitoring event was conducted on October 17 th through 19 th, 2016. This report presents the results of the second semi-annual sampling event for the year 2016 at the facility. The facility’s monitoring network includes one background well (MW-1A), twenty-nine compliance wells, six (6) surface water sample locations, and one leachate sample. The next sampling event is scheduled for April 2017. 2.0 Groundwater Levels and Flow The water table elevations and our interpretation of the groundwater surface expressed as a potentiometric map along with groundwater flow direction are shown on Drawing 1 of 1 in Appendix I. Based upon the groundwater elevations in the vicinity of the landfill, groundwater in this area is projected to flow primarily to the south, with secondary flow toward the southwest and southeast toward tributaries located east and west of the landfills. Groundwater levels for the monitoring wells are presented in Table 1 in Appendix II. The hydraulic gradient (i) in the vicinity of each well was estimated by calculating the vertical difference between the groundwater elevation at each well and one or more nearby contour lines from Drawing 1 of 1. This value was then divided by the horizontal distance measured from the well to the selected groundwater elevation contour line. Groundwater velocity was calculated by multiplying the gradient (i) by the hydraulic conductivity (k) and dividing by the estimated effective porosity (ne) of the aquifer.Table 2 in Appendix II summarizes the groundwater flow rates for the monitoring wells. 3.0 Analytical Data Analytical results for the landfill monitoring wells, surface water samples, and leachate sample are summarized in Tables 4 through 10 in Appendix II. Detections above the NCAC 2L .0202 Groundwater Quality Standards (2L Standards), NCAC 2B surface water standards (2B Standards), and/or SW GWP Standard are highlighted in gray. Field measurements of pH, conductivity, and temperature are summarized in Table 3 in Appendix II. Well sampling logs containing this information are included in Appendix III. 3.1 Groundwater Monitoring and Sampling 3.1.1 MSW Area “E” and Phase 1 MSW Area “E” and Phase 1 groundwater monitoring well locations were sampled for Appendix I volatile organic compounds (VOCs) and Appendix I metals. In addition to Appendix I VOCs and metals, the groundwater analysis for background monitoring well MW-1A also included inorganic constituents iron and manganese. A summary of the detected analytes associated with this Phase of the landfill is included as Table 4 in Appendix II. The groundwater monitoring wells associated with these areas include October 2016 Semi-Annual Monitoring Report Lincoln County Landfill Permit # 55-03 Crouse, North Carolina S&ME Project No. 1356-07-004 January 13, 2017 2 background well MW-1A, compliance wells MW-8, MW-9, and MW-10R that monitor the abandoned leachate pond, and compliance wells MW-12 through MW-20 that monitor down gradient and side gradient of the unlined MSW landfill Area “E” and the lined MSW landfill identified as Phase 1. Based on the laboratory analytical reports included in Appendix III, thirteen VOCs and fifteen metals were detected in MSW Area “E” and Phase 1 groundwater monitoring wells during the October 2016 monitoring event. During the October 2016 monitoring even MW-8 was dry, and therefore not sampled. 3.1.1.1 Volatile Organic Compounds (VOCs) Background monitoring well MW-1A had a detection of Chloroform at a concentration of 6.8 micrograms per liter (µg/L), which is below the 2L Standard of 70 µg/L. Both Bromoform and Chloroform have historically been detected in monitoring well MW-1A which are commonly associated with chlorinated municipal water. Due to MW-1A’s close proximity to Crouse Road, it is likely the detection of Chloroform in the well is from a leaking nearby municipal water or sewer line. No VOCs were detected in groundwater monitoring wells MW-9, MW-10R, MW-12, MW-15, and MW-18 during the October 2016 monitoring event. Monitoring wells MW-13, MW-14, MW-16R, MW-17R, MW-19, and MW-20 contained one or more of the thirteen VOCs detected. Of the VOCs detected, five compounds were detected above their respective 2L Standard: 1,1-Dichloroethane, Benzene, Methylene Chloride, Tetrachloroethene, and Vinyl Chloride. Please note that groundwater monitoring well MW-14 had no VOC detections above its respective 2L Standards. The analytical results for groundwater monitoring well MW-13 indicated that 1,1-Dichloroethane, Benzene, Tetrachloroethane, and Vinyl Chloride were detected above their respective 2L Standards. The results of which are as follows: ♦1,1-Dichloroethane detected at 11 µg/L. 2L Standard is 6 µg/L. ♦Benzene detected at 4.6 µg/L. 2L Standard is 1 µg/L. ♦Tetrachloroethane detected at 2.7 µg/L. 2L Standard is 0.7 µg/L. ♦Vinyl Chloride detected at 0.72 J µg/L. 2L Standard is 0.3 µg/L. The results for groundwater monitoring well MW-16R indicated that Benzene and Vinyl Chloride were detected above their respective 2L Standard. The results of which are as follows: ♦Benzene detected at 5.7 µg/L. 2L Standard is 1 µg/L. ♦Vinyl chloride detected at 2.8 µg/L. 2L Standard is 0.03 µg/L. The results for groundwater monitoring well MW-17R indicated that Benzene and Methylene Chloride were detected above their respective 2L Standard. The results of which are as follows: ♦Benzene detected at 4.6 µg/L. 2L Standard is 1 µg/L. ♦Methylene Chloride at 33 µg/L. 2L Standard is 5 µg/L. The results for groundwater monitoring well MW-19 indicated that 1,1-Dichloroethane, Benzene, and Tetrachloroethene were detected above their respective 2L Standard. The results are as follows: ♦1,1-Dichloroethane detected at 12 µg/L. 2L Standard is 6 µg/L. ♦Benzene detected at 1.8 µg/L. 2L Standard is 1 µg/L. ♦Tetrachloroethene detected at 2.4 µg/L. 2L Standard is 0.7 µg/L. October 2016 Semi-Annual Monitoring Report Lincoln County Landfill Permit # 55-03 Crouse, North Carolina S&ME Project No. 1356-07-004 January 13, 2017 3 The results for groundwater monitoring well MW-20 indicated that 1,1-Dichloroethane, Benzene, and Vinyl Chloride were detected above their respective 2L Standard. The results are as follows: ♦1,1-Dichloroethane detected at 7.2 µg/L. 2L Standard is 6 µg/L. ♦Benzene detected at 1.4 µg/L. 2L Standard is 1 µg/L. ♦Vinyl Chloride detected at 0.47 J µg/L. 2L Standard is 0.03 µg/L. Groundwater monitoring wells MW-13, MW-14, MW-16R, MW-17R, MW-19 and MW-20 monitor down gradient and side gradient of the of the unlined Area “E” landfill, and the volatile organic constituents detected in these wells are associated with the unlined landfill section. 3.1.1.2 Inorganic Constituents (Metals) The groundwater monitoring wells associated with the MSW Area “E” and Phase 1 landfills had two or more Appendix I metals detected. Five constituents were detected above their respective 2L Standard or SW GWP Standard: Antimony, Arsenic, Cobalt, Thallium, and Vanadium. ♦Antimony was detected above its SW GWP Standard of 1 µg/L in background groundwater monitoring well MW-1A at a concentration of 1.42 J µg/L, and in compliance monitoring well MW-14 at a concentration of 6.45 µg/L. ♦Arsenic was detected above its 2L Standard of 10 µg/L in compliance monitoring well MW-13 at a concentration of 19.2 µg/L, and in compliance monitoring well MW-16R at a concentration of 19.9 µg/L. ♦Cobalt was detected above its SW GWP Standard of 70 µg/L in compliance monitoring wells MW- 10R, MW-12, MW-13, MW-14, MW-16R, MW-17R, MW-18, and MW-19 at concentrations ranging from 1.68 µg/L to 266 µg/L. ♦Thallium was detected above its SW GWP Standard of 0.28 µg/L in compliance monitoring wells MW-13, MW-16R, and MW-17R at concentrations ranging from 0.435 J to 1.64 J µg/L. ♦Vanadium was detected above its SW GWP Standard of 0.3 µg/L in compliance groundwater monitoring well MW-10R at a concentration of 13.9 J µg/L. Total metal concentrations in groundwater sampled from wells are often dependent on the turbidity or suspended particulates (from the aquifer formation) retrieved with the groundwater sample. The turbidity is a function of the sampling method, well construction, how the well was developed, and the grain size/consolidation of the lithologic unit sampled. Since the unfiltered samples are acidified in the field at the time of collection, metals contained within the particulates are dissolved into the sample. Thus, the presence of turbidity in groundwater samples often results in elevated (false positive) analytical results for total metal concentrations. Therefore, the presence of elevated total metal concentrations does not necessarily correlate with groundwater impact. Based on historical water quality data, the background well and each of the compliance groundwater monitoring wells have contained at least one total metal at concentrations above the 2L Standards. Metal concentrations in several wells have fluctuated below and above detection limits. In background well MW- 1A, beryllium, cadmium, chromium, cobalt, iron, lead, silver, and vanadium have been detected at concentrations above the 2L Standards. Based on this data, it appears that the majority of the metals detected within the monitoring wells are either naturally occurring or a product of turbidity during sampling. October 2016 Semi-Annual Monitoring Report Lincoln County Landfill Permit # 55-03 Crouse, North Carolina S&ME Project No. 1356-07-004 January 13, 2017 4 An Alternate Source Demonstration (ASD) for certain metals in groundwater was prepared for the lined portions of this facility. The ASD concluded that Antimony, Arsenic, Chromium, Cobalt, Lead, and Vanadium concentrations observed in the vicinity of the lined portion of the landfill were probable naturally occurring groundwater concentrations. In accordance with 15A NCAC 02L, “where naturally occurring substances exceed the established standard, the standard shall be the naturally occurring concentrations as determined by the Director (NCDEQ).” NCDEQ review and approval of the ASD prepared for this facility remains pending. If approved, most if not all of the total metal constituents concentrations detected could be deemed compliant with the 2L Standards. 3.1.2 MSW Phase 2 MSW Phase 2 groundwater monitoring well locations were sampled for Appendix I VOCs and Appendix I metals. A summary of the detected analytes associated with this Phase of the landfill is included as Table 5 in Appendix II. The groundwater monitoring wells associated with this Phase are compliance wells MW- 21 and MW-24 that monitor side gradient of the landfill and MW-25 and MW-25A that monitor the Phase 2 sump. 3.1.2.1 Volatile Organic Compounds (VOCs) No VOCs were detected above their respective 2L Standard or SW GWP Standard in the MSW Phase 2 monitoring wells during the October 2016 monitoring event. 1,1-Dichloroethane was detected in MW- 25A at a concentration of 0.42 J µg/L which is below the 2L Standard of 6 µg/L. 3.1.2.2 Inorganic Constituents (Metals) The groundwater monitoring wells associated with the Phase 2 landfill had four or more Appendix I metals detections, two of which were detected above its respective SW GWP Standard. Cobalt was detected above the SW GWP Standard of 1 µg/L in groundwater monitoring wells MW-25A at a concentration of 3.56 J µg/L. Vanadium was detected above the SW GWP Standard of 0.3 µg/L in groundwater monitoring wells MW-25A at a concentration of 1.63 J µg/L. As previously discussed above, it appears that the majority of the metals detected within the groundwater monitoring wells are either naturally occurring or a product of turbidity during sampling. 3.1.3 MSW Phase 3 MSW Phase 3 groundwater monitoring well locations were sampled for Appendix I VOCs and Appendix I metals. A summary of the detected analytes associated with this phase of the landfill is included in Table 6 in Appendix II. The groundwater monitoring wells associated with this area include compliance wells MW-32R and MW-34 that monitor down gradient and side gradient of the landfill and MW-33/33A and MW-35/35A that monitor the Phase 3 sump locations. 3.1.3.1 Volatile Organic Compounds (VOCs) No VOCs were detected in the MSW Phase 3 monitoring wells during the October 2016 monitoring event. October 2016 Semi-Annual Monitoring Report Lincoln County Landfill Permit # 55-03 Crouse, North Carolina S&ME Project No. 1356-07-004 January 13, 2017 5 3.1.3.2 Inorganic Constituents (Metals) The groundwater monitoring wells associated with the Phase 3 landfill had two or more Appendix I metals detected, two of which were detected above their respective 2L Standard or SW GWP Standard. The detections above standards are as follows: ♦Antimony was detected above the SW GWP Standard of 1 µg/L in groundwater monitoring well MW-33A at a concentration of 4.05 J µg/L. ♦Vanadium was detected above the SW GWP Standard of 0.3 µg/L in groundwater monitoring well MW-35A at a concentration of 2.15 J µg/L. As previously discussed above, it appears that the majority of the metals detected within the groundwater monitoring wells are either naturally occurring or a product of turbidity during sampling. 3.1.4 C&D Landfill Phase 1 and 2 C&D Landfill Phase 1 and Phase 2 groundwater monitoring well locations were sampled for Appendix I VOCs; Appendix I metals plus mercury, manganese, and iron; and four classical chemistry compounds: Chloride, Total Dissolved Solids, Sulfate, and Alkalinity. A summary of the detected analytes associated with the C&D Landfills is included as Table 7 and 8 in Appendix II. The groundwater monitoring wells associated with the C&D landfill include compliance wells MW-26, MW-27, and MW-28 that monitor Phase 1 and MW-29, MW-30, MW-31, and MW-36 that monitor Phase 2. Groundwater monitoring well MW-36 was installed near the C&D compliance boundary as part of the 2013 C&D Assessment. During the October 2016 monitoring event, field personnel indicated MW-34 had been completely removed during the construction of the new phase and therefore could not be sampled. 3.1.4.1 Volatile Organic Compounds (VOCs) C&D Landfill groundwater monitoring wells had seven VOCs detected during the October 2016 monitoring event, two (2) of which were detected above their respective 2L Standard. ♦Tetrachloroethene was detected in groundwater monitoring well MW-28 at a concentration of 7.4 µg/L, which is above its 2L Standard of 0.7 µg/L. ♦Vinyl Chloride was detected in groundwater monitoring well MW-28 at a concentration of 0.89 J µg/L, which is above its 2L Standard of 0.03 µg/L. 3.1.4.2 Inorganic Constituents (Metals) The groundwater monitoring wells associated with the C&D landfill had four or more metals detections, and three (3) constituents were detected above their respective 2L Standard and/or SW GWP Standard. The detections above standards are as follows: ♦Chromium was detected in groundwater monitoring well MW-36 at a concentration of 50.3 µg/L, which is above the 2L Standard of 10 µg/L. ♦Cobalt was detected in groundwater monitoring well MW-27 at a concentration of 10.0 µg/L and at monitoring well MW-28 at a concentration of 2.46 J, which are above the SW GWS Standard of 1 µg/L. ♦Iron was detected in groundwater monitoring wells MW-27, MW-29, MW-31, and MW-36 at concentrations ranging from 525 to 24,800 µg/L, which are above the 2L Standard of 300 µg/L. October 2016 Semi-Annual Monitoring Report Lincoln County Landfill Permit # 55-03 Crouse, North Carolina S&ME Project No. 1356-07-004 January 13, 2017 6 ♦Manganese was detected in groundwater monitoring wells MW-27 and MW-29 at concentrations of 1,430 µg/L and 152 µg/L, respectively, which are above the 2L Standard of 50 µg/L. As previously discussed above, it appears that the majority of the metals detected within the groundwater monitoring wells are either naturally occurring or a product of turbidity during sampling. Since October 2007, Iron and Manganese have been included in the analysis for the C&D wells, and since April 2008, Iron and Manganese were included in the analysis for the background well MW-1A. Iron and Manganese have been detected in MW-1A in each monitoring event that has included their analysis. 3.1.4.3 Classical Chemistry Compounds Total Dissolved Solids, Chloride, Sulfate, and Alkalinity were analyzed for in the C&D landfill groundwater monitoring wells. The results of the analyses are summarized in Tables 7 and 8 in Appendix II. Please note that none of the classical chemistry compounds analyzed for exceeded any of the established 2L Standards and/or SW GWP Standards. 3.2 Surface Water Sampling Lincoln County Landfill has five surface water sampling locations positioned in the tributaries located to the east, south, and west of the landfill as indicated on the attached Drawing 1 of 1 in Appendix I. The original five surface water samples are analyzed for Appendix I VOCs and Appendix I metals plus Mercury, Iron and Manganese. Beginning with the April 2010 sampling event, a sixth surface water sample location was added to the semi-annual monitoring plan, SW-6. The addition of SW-6 to the monitoring plan was in response to the January 2009 leachate release at the facility. SW-6 is located at the discharge of the lowland area downgradient from the leachate holding tanks as indicated on Drawing 1 of 1. During the October 2016 sampling event, surface water locations SW-3, SW-5, and SW-6 were not sampled due to the tributaries being dry or having no flow in those areas at the time of the sampling event. A summary of the detected analytes associated with the surface water samples collected is included as Table 9 in Appendix II. 3.2.1 Surface Water Locations SW-1 through SW-5 Surface water sampling location SW-1 had a detection of one VOC, Chloroform, commonly associated with chlorinated municipal water. Surface water sampling location SW-2 also had a detection of one VOC, Acetone. Neither VOC has an established 2B Standard. Surface water sampling location SW-4 had no volatile organic compounds detected during the October 2016 monitoring event. Three or more metals were detected in surface water sampling locations SW-1, SW-2, and SW-4, none of which were detected at concentrations above their respective 2B Standard. 3.2.2 Surface Water Location SW-6 Surface water from SW-6 could not be sampled due to the tributary being dry at this location during the October 2016 sampling event. October 2016 Semi-Annual Monitoring Report Lincoln County Landfill Permit # 55-03 Crouse, North Carolina S&ME Project No. 1356-07-004 January 13, 2017 7 3.3 Leachate Sampling A sample of the leachate from the leachate collection system for the landfill was collected from the lift station prior to leachate entering the on-site leachate holding tanks. The leachate sample was analyzed for Appendix I VOCs, Appendix I metals, BOD, COD, Nitrate/Nitrite, Sulfate, TSS, and Phosphorous. A summary of the detected analytes for the leachate is included as Table 10 in Appendix II. 4.0 Statistical Analysis S&ME compared the water quality data with the 2L Standards and the SW GWP standards and performed a statistical evaluation of the data. S&ME utilized three (3) statistical methods to evaluate statistically significant increases between the compliance monitoring wells and the background monitoring well (MW- 1A). The first method utilized was a one-way parametric Analysis of Variance (Parametric ANOVA). The parametric ANOVA analysis is recommended by the 1992 guidance document for parameters with fewer than 15% non-detects in a specific well. The second method used was the Kruskal-Wallis non-parametric rank method. The Kruskal-Wallis method is recommended by the 1992 guidance document for parameters that have 15% to 90% non- detects in a specific well. The third method used was an inter-well non-parametric prediction limit. The prediction limit was used for parameters with greater than 90% non-detects in a specific well. The 1992 guidance document recommends this method when a significant portion of the samples are non-detect. Tables 11 through 13 in Appendix II summarize the results of the statistical analysis. Copies of the analytical procedures used to perform the analysis used by the ChemStat software are included in Appendix IV. 4.1 Volatile Organic Compounds (VOCs) One (1) or more volatile organic compounds were found to have a statistical increase over background concentrations in groundwater monitoring wells MW-13, MW-14, MW-16(16R), MW-17(17R), MW-19, and MW-20 that are located downgradient from the unlined closed landfill Area “E”. The statistical increases are as follows: ♦1,1-Dichloroethane in groundwater monitoring wells MW-13, MW-14, MW-16(16R), MW-19 and MW-20. It should be noted that concentrations of 1,1-Dichloroethene in MW-13 and MW-16 have decreased over time, whereas the concentrations at MW-19 were rising. ♦1,4-Dichlorobenzene in groundwater monitoring wells MW-13 and MW-16(16R). The concentrations at MW-13 were generally stable, whereas the concentrations at MW-16 were rising. ♦Benzene in groundwater monitoring wells MW-13 and MW-16(16R). Reported concentrations over time have been generally stable. ♦cis-1,2-Dichloroethene in groundwater monitoring wells MW-13, MW-16(16R), MW-19 and MW- 20. Concentrations at these wells have been relatively stable, although a rising trend over time is noted at MW-16. ♦Chlorobenzene in groundwater monitoring well MW-16(16R). October 2016 Semi-Annual Monitoring Report Lincoln County Landfill Permit # 55-03 Crouse, North Carolina S&ME Project No. 1356-07-004 January 13, 2017 8 ♦Chloroethane in groundwater monitoring well MW-13. It should be noted that concentrations of Chloroethane in well MW-13 have decreased over time. ♦Methylene Chloride in groundwater monitoring wells MW-17(17R), MW-19 and MW-20. It should be noted that concentrations of Methylene Chloride in wells MW-19 and MW-20 have decreased over time. ♦Tetrachloroethene in groundwater monitoring wells MW-13 and MW-19. Reported concentrations over time have been generally stable. ♦Toluene in groundwater monitoring well MW-13. ♦Trichloroethene in groundwater monitoring wells MW-13 and MW-19. Reported concentrations over time have been generally stable. ♦Vinyl Chloride in groundwater monitoring wells MW-13 and MW-16(16R). Reported concentrations over time have been generally stable. ♦Total Xylenes in groundwater monitoring wells MW-13 and MW-17(17R). Reported concentrations over time have been generally stable. There were no volatile organic compounds with statistically significant increases over background for the Phase 2 and Phase 3 MSW wells. Graphs depicting concentrations over time for constituents with a statistical increase are provided in Appendix V. 4.2 Total Metals Total metal concentrations in groundwater sampled from wells are often dependent on the turbidity or suspended particulates (from the aquifer formation) retrieved with the groundwater sample. The turbidity is a function of the sampling method, well construction, how the well was developed, and the grain size/consolidation of the lithologic unit sampled. Since the unfiltered samples are acidified in the field at the time of sample collection, metals contained within the particulates are dissolved into the water sample. Thus, the presence of turbidity in groundwater samples often results in elevated (false positive) analytical results for total metal concentrations. Therefore, the presence of elevated total metal concentrations does not necessarily correlate with groundwater impact. Based on the historical water quality data, the background well and each of the compliance groundwater monitoring wells (excluding MW-19, 22, 24 and 25) have contained at least one (1) total metal at concentrations above the 2L Standards. The statistical evaluation indicates that eight (8) of the compliance groundwater monitoring wells (MW-8, 12, 13, 15, 16, 17, and 33A) contained at least one (1) metal at a statistically significant level higher than the background well. Metal concentrations in several wells have fluctuated between non-detect and detect. In the background well, MW-1A, antimony, beryllium, cadmium, chromium, cobalt, iron, lead, silver, and vanadium have been detected at concentrations above the 2L Standards. Graphs depicting concentrations over time for constituents with a statistical increase are provided in Appendix V. 5.0 Methane Readings Methane Readings are collected from eleven (11) locations on site, including eight (8) methane monitoring wells (MMW-1 through MMW-8) and the scale house, landfill shop, and lift station on site. Methane readings are measured monthly by Lincoln County personnel using a GEM 2000 gas meter. April 2016 through October 2016 methane readings and a figure showing their locations are located in Appendix VI. Appendices Appendix I – Drawings G G G G G G < < < < < < < < < < < < < < < < < < < < < < < < < < < < MW-8 MW-26 C&D PHASE II C&D PHASE I EXISTING AREA "E"CLOSED LANDFILLEXISTING AREA "D"PHASE IPHASE II PHASE III MW-9(804.76) MW-30(832.25) MW-18(834.09) MW-36(824.44) MW-35(804.93) MW-34 MW-33(803.05) MW-31(847.40) MW-29(836.88) MW-28(870.56) MW-27(861.61) MW-25(808.34) MW-24(813.42) MW-21(815.55)MW-20(843.61) MW-1A(889.02) MW-15(819.60) MW-14(840.24)MW-13(839.81) MW-12(813.55) MW-32R(809.22) MW-25A(808.01)MW-17R(857.35) MW-16R(859.79) MW-10R(805.33) MW-19(832.03) 825 8 3 0 820 8 3 5 8 4 0 815 8 4 5 8 1 0 8 5 0 8 5 5 8 6 0 8 0 5 8 6 5 8 7 0 8 7 5 8 8 0 8 8 5 SW-4 SW-5 SW-1 SW-2 SW-3 SW-6 856 86 4 8 5 2 8 4 8 8 4 4 8 3 6 8 3 2 828 824 868 872 87 6 816 884 888 812 892808 804 796 8 9 6 904 9 0 8 912 916 9 2 4 792 788 784 9 2 8 932 9 3 6 864 924 924 904 9 1 6 892 884 7 8 4 936 928 796 8 1 2 9 1 2 824 9 3 6 8 7 6 9 1 2 936 844 868 8 9 2 912 808 7 8 8 9 2 8 848 8 8 8 932 8 6 8 904 856 932 8 8 8 856 892 8 6 8 9 0 8 8 9 6 9 0 4 784 8 7 2 872 848 8 5 2 9 0 8 90 8 9 2 4 876 8 8 4 912 8 1 2 892 9 1 6 836 924 9 3 2 S H O A L R D C R O U S E R D Y O D E R R D SHIRLEY REYNOLDS LN 0 500 1,000Feet LEGEND <GROUNDWATER MONITOR WELLS G SURFACE WATER SAMPLE GROUNDWATER CONTOURS - 5 FT INTERVAL C&D LANDFILL BOUNDARY MSW BOUNDARY STREAMS 4' CONTOURS ROADS DIRT ROADS SITE ´ 1 G R O U N D W A T E R C O N T O U R M A P O C T O B E R 2 0 1 6 L I N C O L N C O U N T Y L A N D F I L L C R O U S E , N O R T H C A R O L I N A 1 3 5 6 -0 7 -0 0 4 1 " = 5 0 0 ' J A N 2 0 1 7 FIGURE NO. S C A L E : P R O J E C T N O : D A T E : D R A W N B Y : C H E C K E D B Y : N C E N G . L I C E N S E #F -0 1 7 6 3 2 0 1 S P R I N G F O R E S T R D , R A L E I G H , N C 2 7 6 1 6 W W W .S M E I N C .C O M D R A W I N G N U M B E R : B T R B -2 6 8 0 Appendix II –Tables Latitude Longitude Ground TOC DTW - TOC GW ELEV. (MM/DD/YY)(ft)(ft-MSL) MW-1A Background - - -35.4305188° -081.3550147° - - -929.27 - - - to - - -- - - to - - -- - - to - - -- - - to - - -- - - to - - -- - -40.25 889.02 MW-8 Leachate Lagoon - - -35.4204767°-081.3543964°- - -840.03 - - -to - - -- - -to - - -- - -to - - -- - -to - - -- - -to - - -- - -DRY N/A MW-9 Leachate Lagoon - - -35.4205014°-081.3544769°- - -840.20 - - -to - - -- - -to - - -- - -to - - -- - -to - - -- - -to - - -- - -35.44 804.76 MW-10R Leachate Lagoon - - -35.4209399°-081.3538215°- - -834.97 - - -to - - -- - -to - - -- - -to - - -- - -to - - -- - -to - - -- - -29.64 805.33 MW-12 Area "E" and Phase 1 - - -35.4229138°-081.3543339°- - -827.57 - - -to - - -- - -to - - -- - -to - - -- - -to - - -- - -to - - -- - -14.02 813.55 MW-13 Area "E" and Phase 1 - - -35.4252197°-081.3569120°- - -872.78 - - -to - - -- - -to - - -- - -to - - -- - -to - - -- - -to - - -- - -32.97 839.81 MW-14 Area "E" and Phase 1 - - -35.4252431°-081.3570085°- - -871.44 - - -to - - -- - -to - - -- - -to - - -- - -to - - -- - -to - - -- - -31.20 840.24 MW-15 Area "E" and Phase 1 - - -35.4232655°-081.3580245°- - -847.86 - - -to - - -- - -to - - -- - -to - - -- - -to - - -- - -to - - -- - -28.26 819.60 MW-16R Area "E" and Phase 1 - - -35.4270857°-081.3570696°- - -876.39 - - -to - - -- - -to - - -- - -to - - -- - -to - - -- - -to - - -- - -16.60 859.79 MW-17R Area "E" and Phase 1 07/20/93 35.4262555°-081.3548668°898.14 899.64 0.0 to 20.0 20.0 to 35.0 0.0 to 16.0 16.0 to 18.0 18.0 to 45.5 - - -42.29 857.35 MW-18 Area "E" and Phase 1 - - -35.4246249°-081.3576782°859.20 861.41 - - -to - - -- - -to - - -- - -to - - -- - -to - - -15.2 to 30.2 - - -27.32 834.09 MW-19 Area "E" and Phase 1 - - -35.4247561°-081.3576590°859.95 859.73 - - -to - - -- - -to - - -- - -to - - -- - -to - - -63.0 to 68.0 - - -27.70 832.03 MW-20 Area "E" and Phase 1 - - -35.4256922°-081.3575990°- - -860.00 - - -to - - -- - -to - - -- - -to - - -- - -to - - -10.1 to 25.1 - - -16.39 843.61 MW-21 Phase 2 09/03/99 35.4221305°-081.3579143°853.80 855.91 0.0 to 27.0 27.0 to 42.0 0.0 to 23.0 23.0 to 25.0 25.0 to 42.0 SAP 40.36 815.55 MW-24 Phase 2 09/02/99 35.4219922°-081.3540276°838.95 841.13 0.0 to 14.0 14.0 to 29.0 0.0 to 10.0 10.0 to 12.0 12.0 to 29.0 SAP 27.71 813.42 MW-25 Phase 2 08/31/99 35.4213534°-081.3546541°836.75 838.73 0.0 to 15.0 15.0 to 30.0 0.0 to 11.0 11.0 to 13.0 13.0 to 30.0 SAP 30.39 808.34 MW-25A Phase 2 09/01/99 35.4212848°-081.3547068°836.75 838.84 0.0 to 50.0 50.0 to 60.0 0.0 to 46.0 46.0 to 48.0 48.0 to 60.0 SAP 30.83 808.01 MW-26 C&D Phase 1 09/08/99 35.4273089°-081.3527074°869.11 871.19 0.0 to 6.0 6.0 to 21.0 0.0 to 4.0 4.0 to 5.0 5.0 to 21.0 SAP 15.10 N/A MW-27 C&D Phase 1 09/07/99 35.4278831°-081.3533157°879.03 880.90 0.0 to 10.0 10.0 to 25.0 0.0 to 6.0 6.0 to 8.0 8.0 to 25.0 SAP 19.29 861.61 MW-28 C&D Phase 1 04/01/99 35.4276977°-081.3542728°912.72 915.68 0.0 to 36.0 36.0 to 51.0 0.0 to 32.0 32.0 to 34.0 34.0 to 51.0 SAP 45.12 870.56 MW-29 C&D Phase 2 04/30/02 35.4252895°-081.3534741°877.45 879.97 0.0 to 30.0 30.0 to 45.0 0.0 to 26.0 26.0 to 28.0 28.0 to 45.0 PWR 43.09 836.88 MW-30 C&D Phase 2 05/02/02 35.4259842°-081.3520549°883.72 886.35 0.0 to 45.0 45.0 to 60.0 0.0 to 41.0 41.0 to 43.0 43.0 to 60.0 SAP 54.10 832.25 MW-31 C&D Phase 2 06/19/03 35.4266563°-081.3521999°877.40 879.88 0.0 to 25.0 25.0 to 40.0 0.0 to 21.0 21.0 to 23.0 23.0 to 40.0 PWR 32.48 847.40 MW-32R Phase 3 12/20/04 35.4214589°-081.3583317°825.89 827.25 0.0 to 10.0 10.0 to 25.0 0.0 to 6.0 6.0 to 8.0 8.0 to 25.0 SAP 18.03 809.22 MW-33 Phase 3 12/30/04 35.4208632°-081.3585631°816.33 819.38 0.0 to 7.0 7.0 to 22.0 0.0 to 3.0 3.0 to 5.0 5.0 to 22.0 SAP 16.33 803.05 MW-33A Phase 3 12/30/04 35.4208632°-081.3585631°815.94 818.67 0.0 to 56.5 56.5 to 61.5 0.0 to 52.5 52.5 to 54.5 54.5 to 61.5 ROCK 16.30 802.37 MW-34 Phase 3 12/21/04 35.4202637°-081.3569455°829.82 832.77 0.0 to 17.0 17.0 to 32.0 0.0 to 13.0 13.0 to 15.0 15.0 to 32.0 SAP NM N/A MW-35 Phase 3 12/28/04 35.4200537°-081.3551088°836.85 839.64 0.0 to 19.0 19.0 to 34.0 0.0 to 15.0 15.0 to 17.0 17.0 to 34.0 SAP 34.71 804.93 MW-35A Phase 3 12/28/04 35.4200537°-081.3551088°836.77 839.83 0.0 to 60.0 60.0 to 65.0 0.0 to 56.0 56.0 to 58.0 58.0 to 65.0 SAP 35.68 804.15 MW-36 C&D Phase 2 06/26/13 35.4252949° -081.3518019° 852.00 854.83 0.0 to 19.5 19.5 to 34.5 0.0 to 9.5 9.5 to 17.7 17.7 to 35.0 SAP 30.39 824.44 Notes: (ft-MSL)Feet Mean Sea Level DTW Depth to Water Sch. 40 Schedule 40 Pipe PWR Partially Weathered Rock (ft-bls)Feet Below Land Surface GW ELEV.Groundwater Elevation 0.010 Slot 0.010-Inch Machine-Slotted Pipe ROCK Bedrock TOC Top of Casing #2 Filter Sand Medium to Fine Grained Silica Sand Neat CementCement Mixture without Bentonite - - -Not Available Ground Ground Surface Bentonite Bentonite Pellets SAP Saprolite DRY No water in well at time of sampling NS Well was not sampled N/A Not Applicable 2-inch, SCH. 40, PVC 2-inch, 0.010 Slot, PVC Neatr Cement Bentonite Interval (decimal degrees)(ft-MSL)(ft-bls)(ft-bls)(ft-bls) Screen Interval Grout Interval Seal Interval Filter Pack Geology in Screen Interval October 2016 (ft-bls)(ft-bls) Table 1 Well Construction Summary and Water Level Data Lincoln County Landfill S&ME Project No: 1356-07-004 Well ID Area Monitored Install Date GPS Coordinates Survey Elevations Casing Interval K n I v Well Hydraulic Cond. Eff. Porosity Gradient Flow Velocity ID (ft/day)(ne)(ft/ft)(ft/yr) MW-1A - - -- - -- - -- - - MW-8 - - -- - -- - -- - - MW-10R - - -- - -- - -- - - MW-12 - - -- - -- - -- - - MW-13 - - -- - -- - -- - - MW-15 - - -- - -- - -- - - MW-16R - - -- - -- - -- - - MW-17R 1.4E+00 17%0.02 67 MW-18 - - -- - -- - -- - - MW-20 - - -- - -- - -- - - MW-21 4.5E-01 23%0.01 8 MW-24 - - -- - -- - -- - - MW-25 1.0E-01 24%0.01 2 MW-26 - - -- - -- - -- - - MW-27 - - -- - -- - -- - - MW-28 3.2E-01 - - -- - -- - - MW-29 8.6E-01 3%0.04 406 MW-30 5.0E+00 24%0.07 521 MW-31 - - -- - -- - -- - - MW-32R 2.6E-01 20%0.03 12 MW-33 3.0E+00 27%0.03 134 MW-34 7.5E+00 21%- - -- - - MW-35 4.9E-01 16%0.01 8 MW-36 3.5E+00 20%0.06 353 Notes: (4) Seepage velocity v = (K*i)/ne - - -Not Available (1) Hydraulic Conductivity was calculated from slug tests performed after well construction. October 2016 (3) Hydraulic gradient calculated by measuring linear feet between selected contour intervals. Table 2 Groundwater Flow Data Lincoln County Landfill S&ME Project No: 1356-07-004 (2) Effective porosity was estimated from soils collected within the saturated portion of screen interval during well construction. Well ID DTW TOC (ft-bls)pH Temp (°C) Conductance (μS) Turbidity (NTU) MW-1A 40.25 5.16 17.6 19 9.81 MW-8 MW-9 35.44 6.47 16.4 45 1.32 MW-10R 29.64 6.26 17.5 132 117.50 MW-12 14.02 5.46 18.3 139 28.45 MW-13 32.97 5.90 19.4 300 17.30 MW-14 31.20 5.60 18.3 148 1.86 MW-15 28.26 6.30 17.1 60 8.54 MW-16R 16.60 6.40 20.7 841 29.13 MW-17R 42.29 5.04 18.5 73 14.16 MW-18 27.32 6.13 15.3 223 51.83 MW-19 27.70 6.40 16.5 132 3.91 MW-20 16.39 5.60 19.7 148 0.78 MW-21 40.36 5.31 16.1 86 23.97 MW-24 27.71 5.15 18.2 245 2.20 MW-25 30.39 5.80 18.9 146 37.12 MW-25A 30.83 6.10 19.1 117 6.86 MW-26 15.10 6.00 21.7 95 0.38 MW-27 19.29 5.00 18.0 362 7.53 MW-28 45.12 4.90 17.7 49 5.02 MW-29 43.09 5.36 18.1 245 4.68 MW-30 54.10 6.10 19.1 71 12.90 MW-31 32.48 5.55 16.7 59 65.82 MW-32R 18.03 7.00 20.7 81 14.35 MW-33 16.33 6.40 19.9 101 1.21 MW-33A 16.30 6.60 19.5 239 1.71 MW-34 MW-35 34.71 6.20 17.6 23 12.04 MW-35A 35.68 6.20 17.5 23 12.04 MW-36 30.39 5.35 15.6 22 6.38 Notes: °C degrees Celsius μS micro siemems NTU nephelometric turbidity unit Table 3 October 2016 - Field Parameters in Monitoring Wells Lincoln County Landfill S&ME Project No. 1356-07-004 DRY Not Located EPA Appendix I Volatile Organic Compounds Method 8260 (µg/L) NCDEQ SWSL 15A NCAC 2L Soild Waste GWP ST MW-1A MW-8 MW-9 MW-10R MW-12 MW-13 MW-14 MW-15 MW-16R MW-17R MW-18 MW-19 MW-20 1,1-Dichloroethane 5 6 NE 11 2.4 J 1.0 J 5.1 12 7.2 1,4 - Dichlorobenzene 1 6 NE 2.7 3.9 2.6 1.5 cis-1,2,-Dichloroethene 5 70 NE 2.4 J 8.0 2.7 J 1.1 J 3.6 J Benzene 1 1 NE 4.6 5.7 4.6 1.8 1.4 Chlorobenzene 3 50 NE 4.5 Chloroform 5 70 NE 6.8 Ethyl Chloride (Chloroethane)10 3000 NE 0.81 J 0.53 J Methylene Chloride 1 5 NE 33 2.8 0.91 J Tetrachloroethene 1 0.7 NE 2.7 0.54 J 2.4 0.55 J Trichloroethene 1 3 NE 2.0 1.1 1.8 0.70 J Trichlorofluoromethane 1 2000 NE 0.45 J Vinyl chloride 1 0.03 NE 0.72 J 2.8 0.47 J Xylenes (total)5 500 NE 2.0 J 12 1.6 J 1.7EPA Appendix I Metals Method 6010B/6020 (µg/L) Antimony 6 NE 1 1.42 J 6.45 0.849 J Arsenic 10 10 NE 19.2 19.9 Barium 100 700 NE 24.6 J 27.5 J 82.4 J 141 94.6 J 26.9 J 79.1 J 539 129 60.0 J 30.8 J 93.2 J Beryllium 1 NE 4 0.310 J 0.172 J 0.245 J Chromium 10 10 NE 1.52 J 2.69 J 7.58 J Cobalt 10 NE 1 2.35 J 17.5 266 1.49 J 33.8 18.4 1.68 J 5.66 J Copper 10 1000 NE 1.83 J 2.76 J 4.87 J 4.74 J 4.17 J 7.06 J 3.93 J 1.74 J Iron 300 300 NE 26.6 J Lead 10 15 NE 5.01 J Manganese 50 50 NE 8.50 J Nickel 50 100 NE 5.03 J 3.39 J 14.1 J 2.73 J 11.1 J 8.28 J 2.46 J Silver 10 20 NE 6.39 J Thallium 5.5 NE 0.28 0.128 J 0.151 J 0.714 J 0.119 J 1.64 J 0.435 J 0.220 J Vanadium 25 NE 0.3 13.9 J Zinc 10 1000 NE 7.70 J 27.0 16.4 5.40 J 15.5 Table 4 October 2016 - Detected Analytes in Monitoring Wells for MSW Area “E” and Phase 1 Lincoln County Landfill S&ME Project No. 1356-07-004 DRY DRY EPA Appendix I Volatile Organic Compounds Method 8260 (µg/L) NCDEQ SWSL 15A NCAC 2L Soild Waste GWP ST MW-21 MW-24 MW-25 MW-25A 1,1-Dichloroethane 5 6 NE 0.42 J EPA Appendix I Metals Method 6010B/6020 (µg/L) Antimony 6 NE 1 0.708 J Barium 100 700 NE 55.7 J 241 270 144 Beryllium 1 NE 4 0.111 J 1.05 0.296 J Cadmium 1 2 NE 0.393 J Chromium 10 10 NE 1.98 J 4.70 J Cobalt 10 NE 1 3.56 J Copper 10 1000 NE 2.12 J 1.91 J 2.10 J 1.73 J Nickel 50 100 NE 5.69 J Thallium 5.5 NE 0.28 0.191 J 0.151 J Vanadium 25 NE 0.3 1.63 J Zinc 10 1000 NE 15.8 29.1 26.5 8.72 J Table 5 October 2016 - Detected Analytes in Monitoring Wells for MSW Phase 2 Lincoln County Landfill S&ME Project No. 1356-07-004 EPA Appendix I Volatile Organic Compounds Method 8260 (µg/L) NCDEQ SWSL 15A NCAC 2L Soild Waste GWP ST MW-32R MW-33 MW-33A MW-34 MW-35 MW-35A EPA Appendix I Metals Method 6010B/6020 (µg/L) Antimony 6 NE 1 4.05 J 0.545 J Barium 100 700 NE 15.6 J 42.1 J 4.76 J 47.4 J 45.6 J Beryllium 1 NE 4 0.155 J Cadmium 1 2 NE 0.387 J Chromium 10 10 NE 3.20 J Copper 10 1000 NE 1.82 J 5.14 J 1.85 J Vanadium 25 NE 0.3 2.15 J Zinc 10 1000 NE 35.0 17.4 7.15 J No Volatile Organic Compounds Detected in Phase 3 During October 2016 Sampling Table 6 October 2016 - Detected Analytes in Monitoring Wells for MSW Phase 3 Lincoln County Landfill S&ME Project No. 1356-07-004 EPA Appendix I Volatile Organic Compounds Method 8260 (µg/L) NCDEQ SWSL 15A NCAC 2L Soild Waste GWP ST MW-26 MW-27 MW-28 1,1-Dichloroethane 5 6 NE 0.64 J Benzene 1 1 NE 0.51 J Tetrachloroethene 1 0.7 NE 0.45 J 7.4 Tetrahydrofuran NE NE NE 5.8 Trichloroethene 1 3 NE 0.47 JVinyl Chloride 1 0.03 NE 0.89 J EPA Appendix I Metals Method 6010B/6020 (µg/L) Barium 100 700 NE 86.2 J 160 104 Beryllium 1 NE 4 0.322 J Chromium 10 10 NE 2.24 J 1.81 J Cobalt 10 NE 1 10.0 2.46 J Copper 10 1000 NE 3.93 J 2.91 J Iron 300 300 NE 32.4 J 534 222 J Manganese 50 50 NE 2.85 J 1,430 27.6 J Nickel 50 100 NE 17.0 J 3.95 J Thallium 5.5 NE 0.28 0.185 0.128 J Zinc 10 1000 NE 15.9 10.2 Classical Chemistry Compounds (mg/L) Chloride NE 250 NE 3.6 J 33 Sulfate as SO4 250 250 NE 3.7 J 50 J Total Dissolved Solids NE 500 NE 200 Total Alkalinity NE NE NE 30 59 S&ME Project No. 1356-07-004 Lincoln County Landfill October 2016 - Detected Analytes in Monitoring Wells for C&D Phase 1 Table 7 EPA Appendix I Volatile Organic Compounds Method 8260 (µg/L) NCDEQ SWSL 15A NCAC 2L Soild Waste GWP ST MW-29 MW-30 MW-31 MW-36 Benzene 1 1 NE 0.55 J Methyl Chloride (Chloromethane)1 3 NE 2.4 EPA Appendix I Metals Method 6010B/6020 (µg/L) Barium 100 700 NE 13.6 J 68.0 J 5.07 J 54.3 J Beryllium 1 NE 4 0.313 J Chromium 10 10 NE 50.3 Copper 10 1000 NE 5.56 J 2.59 J Iron 300 300 NE 24,800 76.7 J 4,300 525 Manganese 50 50 NE 152 23.9 J 29.7 J 14.9 J Nickel 50 100 NE 24.3 J Zinc 10 1000 NE 5.90 J 4.43 J Classical Chemistry Compounds (mg/L) Chloride NE 250 NE 4.6 J Sulfate as SO4 250 250 NE 5.9 J 3.8 J 7.7 J Total Dissolved Solids NE 500 NE 110 Total Alkalinity NE NE NE 99 21 S&ME Project No. 1356-07-004 Lincoln County Landfill October 2016 - Detected Analytes in Monitoring Wells for C&D Phase 2 Table 8 EPA Appendix I Volatile Organic Compounds Method 8260 (µg/L) 15A NCAC 2B SW-1 SW-2 SW-3 SW-4 SW-5 SW-6 Acetone NE 11 J dry dry dry Chloroform NE 0.50 J dry dry dry EPA Appendix I Metals Method 6010B/6020 (µg/L) Barium 1,000 20.0 J 20.9 J dry 24.6 J dry dry Iron NE 636 190 J dry 429 dry dry Manganese NE 87.7 16.1 J dry 15.7 dry dry Zinc 36 15.7 dry dry dry Classical Chemistry Compounds (mg/L) BOD NE NA NA dry NA dry dry COD NE NA NA dry NA dry dry Sulfate NE NA NA dry NA dry dry Sulfate as SO4 NE NA NA dry NA dry dry Phosphorous NE NA NA dry NA dry dry Nitrate as N NE NA NA dry NA dry dry Nitrate/Nitrite as N NE NA NA dry NA dry dry Total Suspended Solids NE NA NA dry NA dry dry Total Alkalinity NE NA NA dry NA dry dry Table 9 October 2016 - Detected Analytes in Surface Water Samples Lincoln County Landfill S&ME Project No. 1356-07-004 EPA Appendix I Volatile Organic Compounds Method 8260 (µg/L) NCDEQ SWSL Lift Station EPA Appendix I Metals Method 6010B/6020 (µg/L) Arsenic 10 435 Barium 100 2,030 Chromium 10 67.0 Cobalt 10 23.2 Copper 10 26.5 Lead 10 21.3 Nickel 50 77.3 Silver 10 3.84 J Thallium 5.5 1.39 JD Vanadium 25 83 Zinc 10 614 Classical Chemistry Compounds (mg/L) BOD NE 64 COD NE 620 Sulfate as SO4 250 6600 J Phosphorous NE 8300 D Nitrate as N 10 40 J Nitrite as N 1000 280 J Nitrate/Nitrite as N NE 320 Total Alkalinity NE 1,700 D Total Suspended Solids NE 710 Table 10 October 2016 - Detected Analytes in Leachate Lincoln County Landfill S&ME Project No. 1356-07-004 No Volatile Organic Compounds Detected in October 2016 Notes: (1) ug/L = micrograms per liter (parts per billion) (2) mg/L = milligrams per liter (parts per million) (3) μS = microSiemens (4) 15A NCAC 2L = North Carolina Groundwater Quality Standards (5) 15A NCAC 2B = North Carolina Surface Water Quality Standards (6) GWP ST = Solid Waste Groundwater Protection Standard (7) NE = No established standard (8) Bold indicates above 15A NCAC 2L, 15A NCAC 2B, or SWS GWP standard (9) Compounds not shown were not detected. (10) SWSL = North Carolina Department of Environmtental Quality, Solid Waste Section Limit established in 2007 (11) NA = Not Analyzed (12) J = Analyte detected is between the Method Detection Limit (MDL) and the SWSL (13) B = Analyte was detected in the associated method blank (14) D = The sample was analyzed at dilution (15) Dry = surface water sample location dry or no flow, location not sampled Notes for Tables 4 through 10 S&ME Project No. 1356-07-004 Statistical Percent Analysis Parameter Well ID Non-Detect Method SSI Comments 1,1-Dichloroethane MW-13 2%PA TRUE Concentrations have decreased over time MW-14 51%KW TRUE MW-16 26%KW TRUE Concentrations have decreased over time MW-17 81%KW FALSE MW-19 33%KW TRUE Concentrations rising over time MW-20 35%KW TRUE Concentrations inconsistent over time 1,4-Dichlorobenzene MW-13 55%KW TRUE Concentrations generally stable over time MW-16 57%KW TRUE Concentrations rising over time MW-17 91%PL FALSE MW-19 93%PL FALSE MW-20 85%KW FALSE Antimony MW-14 55%KW FALSE MW-19 58%KW FALSE Arsenic MW-13 47%KW TRUE Concentrations generally stable over time MW-16 59%KW TRUE Concentrations generally stable over time Barium MW-12 38%KW FALSE MW-13 34%KW FALSE MW-14 45%KW FALSE MW-16 35%KW TRUE Concentrations rising over time MW-17 35%KW FALSE MW-10 23%KW FALSE MW-15 22%KW TRUE Concentrations generally stable over time MW-8 39%KW FALSE MW-9 35%KW FALSE MW-18 33%KW FALSE MW-19 50%KW FALSE MW-20 33%KW FALSE Benzene MW-13 34%KW TRUE Concentrations generally stable over time MW-16 52%KW TRUE Concentrations generally stable over time MW-17 88%KW FALSE MW-19 65%KW FALSE MW-20 70%KW FALSE Beryllium MW-10 58%KW FALSE MW-17 56%KW FALSE MW-15 39%KW TRUE Concentrations generally stable over time cis-1,2-Dichloroethene MW-13 44%KW TRUE Concentrations generally stable over time MW-16 47%KW TRUE Concentrations rising over time MW-17 91%PL FALSE MW-19 56%KW TRUE Concentrations generally stable over time MW-20 60%KW TRUE Concentrations generally stable over time Chlorobenzene MW-16 61%KW TRUE Chromium MW-9 34%KW FALSE MW-10 33%KW FALSE Table 11 October 2016 Statistical Analysis for Phase 1 and Area "E" Lincoln County Landfill S&ME Project No. 1356-07-004 Page 1 of 3 Statistical Percent Analysis Parameter Well ID Non-Detect Method SSI Comments Table 11 October 2016 Statistical Analysis for Phase 1 and Area "E" Lincoln County Landfill S&ME Project No. 1356-07-004 Cobalt MW-12 30%KW TRUE Concentrations generally stable over time MW-13 0%PA TRUE Concentrations generally stable over time MW-14 77%KW FALSE MW-16 9%PA FALSE MW-17 40%KW TRUE Concentrations generally stable over time MW-10 63%KW FALSE MW-8 32%KW TRUE Concentrations generally stable over time MW-9 89%KW FALSE MW-18 63%KW FALSE MW-20 63%KW FALSE Copper MW-13 66%KW FALSE MW-14 43%KW FALSE MW-17 63%KW FALSE MW-9 68%KW FALSE MW-10 60%KW FALSE MW-18 55%KW FALSE MW-20 88%KW FALSE Ethyl Chloride MW-13 36%KW TRUE Concentrations declining with over time (Chloroethane)MW-20 83%KW FALSE Lead MW-16 46%KW TRUE Concentrations generally stable over time Methylene Chloride MW-17 91%PL TRUE First Detection and First SSI in April 2015 MW-19 48%KW TRUE Concentrations have decreased over time MW-20 48%KW TRUE Concentrations have decreased over time Nickel MW-10 70%KW FALSE MW-12 57%KW FALSE MW-13 47%KW FALSE MW-14 66%KW FALSE MW-16 54%KW FALSE MW-17 47%KW FALSE MW-18 65%KW FALSE Silver MW-16 72%KW FALSE Tetrachloroethene MW-13 49%KW TRUE Concentrations generally stable over time MW-14 83%KW FALSE MW-17 72%KW FALSE MW-19 50%KW TRUE Concentrations generally stable over time MW-20 73%KW FALSE Thallium MW-10 91%PL FALSE MW-13 45%KW FALSE MW-14 92%PL FALSE MW-16 52%KW FALSE MW-17 88%KW FALSE MW-18 63%KW FALSE Page 2 of 3 Statistical Percent Analysis Parameter Well ID Non-Detect Method SSI Comments Table 11 October 2016 Statistical Analysis for Phase 1 and Area "E" Lincoln County Landfill S&ME Project No. 1356-07-004 Toluene MW-12 98%PL FALSE MW-13 70%KW FALSE Concentrations vary from non-detect to detect Trichloroethene MW-13 49%KW TRUE Concentrations generally stable over time MW-14 89%KW FALSE MW-16 87%KW FALSE MW-17 84%KW FALSE MW-19 53%KW TRUE Concentrations generally stable over time MW-20 73%KW FALSE Trichlorofluoromethane MW-17 95%PL FALSE Vanadium MW-10 30%KW FALSE Vinyl Chloride MW-13 62%KW TRUE Concentrations generally stable over time MW-16 28%KW TRUE Concentrations generally stable over time MW-20 85%KW FALSE Xylenes (Total)MW-13 40%KW TRUE Concentrations generally stable over time MW-17 91%PL TRUE First Detection and First SSI in April 2015 MW-19 71%KW FALSE MW-20 85%KW FALSE Zinc MW-10 28%KW FALSE MW-14 47%KW FALSE MW-16 33%KW FALSE MW-17 37%KW FALSE Page 3 of 3 Statistical Percent Analysis Parameter Well ID Non-Detect Method SSI Comments Antimony MW-25A 46%KW FALSE Barium MW-21 32%KW FALSE MW-24 38%KW FALSE MW-25 39%KW FALSE MW-25A 32%KW FALSE Beryllium MW-21 51%KW FALSE MW-24 51%KW FALSE MW-25 53%KW FALSE Cadmium MW-25 86%KW FALSE Chromium MW-25 47%KW FALSE MW-25A 30%KW FALSE Cobalt MW-25A 51%KW FALSE Copper MW-21 73%KW FALSE MW-24 76%KW FALSE MW-25 78%KW FALSE MW-25A 70%KW FALSE 1.1-Dichloroethane MW-25A 97%PL FALSE Nickel MW-25 67%KW FALSE Thallium MW-24 73%KW FALSE MW-25 86%KW FALSE Vanadium MW-25A 43%KW FALSE Zinc MW-21 62%KW FALSE MW-24 43%KW FALSE MW-25 44%KW FALSE MW-25A 49%KW FALSE Table 12 October 2016 Statistical Analysis for Phase 2 Lincoln County Landfill S&ME Project No. 1356-07-004 Page 1 of 1 Statistical Percent Analysis Parameter Well ID Non-Detect Method SSI Comments Antimony MW-33A 31%KW TRUE typically 2 ug/L, but increased to ~4 ug/L in 2016 MW-35A 50%KW FALSE Barium MW-32 8%PA FALSE MW-33 8%PA FALSE MW-33A 23%PA FALSE MW-35 8%PA FALSE MW-35A 8%PA FALSE Beryllium MW-33 42%KW FALSE Cadmium MW-33A 85%KW FALSE Chromium MW-35A 27%KW FALSE Copper MW-32 71%KW FALSE MW-33A 35%KW FALSE MW-35 76%KW FALSE Vanadium MW-35A 223%KW FALSE Zinc MW-32 29%KW FALSE MW-33A 23%KW FALSE MW-35 20%KW FALSE Table 13 October 2016 Statistical Analysis for Phase 3 Lincoln County Landfill S&ME Project No. 1356-07-004 Page 1 of 1 Notes: (1) SSI = Statistically Significant Increase (2) PA = One Way Parametric Analysis of Variance (Parametric ANOVA) The parametric ANOVA analysis is recommended by the 1992 guidance document for parameters with fewer than 15% non-detects in a specific well. (3) KW = Kruskal Wallis Non-Parametric Rank Analysis The Kruskal-Wallis method is recommended by the 1992 guidance document for parameters that have 15% to 90% non-detects in a specific well. (4) PL = Non-Parametric Inter-Well Prediction Limit Analysis The prediction limit was used for parameters with greater than 90% non-detects in a specific well. The 1992 guidance document recommends this method when a significant portion of the samples are non-detect. Notes for Tables 11 through 13 S&ME Project No. 1356-07-004 Appendix III – Well Sampling Logs and Laboratory Reports Project Name: Lincoln County Landfill Project Location: Crouse, North Carolina Project Number: 1356-07-004 Well ID MW-1A Sampling Personnel (1)(2) Weather Conditions Unusual Site Conditions Water Level Data Measuring Point Location Well Casing Volume Depth to Water (ft) Depth to Base of Well (ft)(well casing volume = water column*0.174) Water Column (ft) Equipment Used to Measure Depths Well Purging Data Date 10/18/2016 Purging Equipment Total Voume (Gal)Time pH Temp (C)Conductance (µS)Turbidity Initial 0 13:27 5.19 18.5 274.30 3.0 13:33 5.19 17.9 51.94 6.0 13:40 5.17 17.5 14.45 Final 9.0 13:47 5.16 17.6 9.81 Well Sampling Data Sampling Date Sampling Time Sampling Equipment Sample Observations Final Grab Analytical Data Method Container Type and No.Preservation Appendix I VOCs (3) 40 mL glass vials Comments Lab 19 19 19 17.35 3.0 20 Electric Water Level Probe Field Cleaned Mega Monsoon Gary Simcox 57.60 TOC 40.25 ENCO HCL disposable teflon bailer Appendix I Metals + Hg, Mn, Fe HNO3(1) 500 mL plastic bottle Project Name: Lincoln County Landfill Project Location: Crouse, North Carolina Project Number: 1356-07-004 Well ID MW-8 Sampling Personnel (1)(2) Weather Conditions Unusual Site Conditions Water Level Data Measuring Point Location Well Casing Volume Depth to Water (ft) Depth to Base of Well (ft)(well casing volume = water column*0.174) Water Column (ft) Equipment Used to Measure Depths Well Purging Data Date 10/18/2016 Purging Equipment Total Voume (Gal)Time pH Temp (C)Conductance (µS)Turbidity Initial 0 Final Well Sampling Data Sampling Date Sampling Time Sampling Equipment Sample Observations Analytical Data Method Container Type and No.Preservation Appendix I VOCs (3) 40 mL glass vials Appendix I Metals (1) 500 mL plastic bottle Comments Lab 32.00 0.00 0.00 Disposable Teflon Bailer Electric Water Level Probe Gary Simcox TOC 32.00 ENCO HCL HNO3 Not sampled/well dry disposable teflon bailer Project Name: Lincoln County Landfill Project Location: Crouse, North Carolina Project Number: 1356-07-004 Well ID MW-9 Sampling Personnel (1)(2) Weather Conditions Unusual Site Conditions Water Level Data Measuring Point Location Well Casing Volume Depth to Water (ft) Depth to Base of Well (ft)(well casing volume = water column*0.174) Water Column (ft) Equipment Used to Measure Depths Well Purging Data Date 10/18/2016 Purging Equipment Total Voume (Gal)Time pH Temp (C)Conductance (µS)Turbidity Initial 0 9:55 6.59 16.5 1.15 6 10:02 6.49 16.3 3.38 12 10:10 6.47 16.4 1.92 Final 18 10:18 6.47 16.4 1.30 Well Sampling Data Sampling Date Sampling Time Sampling Equipment Sample Observations Final Grab 10:45 6.22 17.5 1.32 Analytical Data Method Container Type and No.Preservation Appendix I VOCs (3) 40 mL glass vials Appendix I Metals (1) 500 mL plastic bottle (1) 500 mL plastic bottle Comments Lab ENCO Clear HCL HNO3 42 43 44 45 10/19/2016 10:45 disposable teflon bailer 40 UnpreservedDissolved Metals Electric Water Level Probe Field Cleaned Mega Monsoon TOC 35.44 68.00 Gary Simcox 32.56 5.3 Project Name: Lincoln County Landfill Project Location: Crouse, North Carolina Project Number: 1356-07-004 Well ID MW-10R Sampling Personnel (1)(2) Weather Conditions Unusual Site Conditions Water Level Data Measuring Point Location Well Casing Volume Depth to Water (ft) Depth to Base of Well (ft)(well casing volume = water column*0.174) Water Column (ft) Equipment Used to Measure Depths Well Purging Data Date 10/18/2016 Purging Equipment Total Voume (Gal)Time pH Temp (C)Conductance (µS)Turbidity Initial 0 12:15 6.13 17.3 0.3 12:18 6.26 17.5 1014.00 Final Well Sampling Data Sampling Date Sampling Time Sampling Equipment Sample Observations Final Grab 11:05 117.50 Analytical Data Method Container Type and No.Preservation Appendix I VOCs (3) 40 mL glass vials Appendix I Metals (1) 500 mL plastic bottle (1) 500 mL plastic bottle Comments Lab Gary Simcox 0.3 Electric Water Level Probe TOC 29.64 31.10 135 132 1.46 Disposable Teflon Bailer 10/19/2016 11:05 disposable teflon bailer Filled metals containers and well was dry, will come back later for VOA's ENCO not much water/turbid HCL HNO3 Dissolved Metals Unpreserved Project Name: Lincoln County Landfill Project Location: Crouse, North Carolina Project Number: 1356-07-004 Well ID MW-12 Sampling Personnel (1)(2) Weather Conditions Unusual Site Conditions Water Level Data Measuring Point Location Well Casing Volume Depth to Water (ft) Depth to Base of Well (ft)(well casing volume = water column*0.174) Water Column (ft) Equipment Used to Measure Depths Well Purging Data Date 10/18/2016 Purging Equipment Total Voume (Gal)Time pH Temp (C)Conductance (µS)Turbidity Initial 0 11:40 5.53 17.3 1.0 11:44 5.62 16.7 2.0 11:47 5.60 16.5 Final 3.0 11:51 5.55 16.3 28.45 Well Sampling Data Sampling Date Sampling Time Sampling Equipment Sample Observations Final Grab 11:55 5.46 18.3 28.45 Analytical Data Method Container Type and No.Preservation Appendix I VOCs (3) 40 mL glass vials Appendix I Metals (1) 500 mL plastic bottle (1) 500 mL plastic bottle Comments Lab ENCO Clear HCL HNO3 166 161 145 133 10/19/2016 11:55 disposable teflon bailer This well could be purged with and sampled with a pump. Dissolved Metals Unpreserved 139 Electric Water Level Probe Disposable Teflon Bailer TOC 14.02 20.00 Gary Simcox 5.98 1.0 Project Name: Lincoln County Landfill Project Location: Crouse, North Carolina Project Number: 1356-07-004 Well ID MW-13 Sampling Personnel (1)(2) Weather Conditions Unusual Site Conditions Water Level Data Measuring Point Location Well Casing Volume Depth to Water (ft) Depth to Base of Well (ft)(well casing volume = water column*0.174) Water Column (ft) Equipment Used to Measure Depths Well Purging Data Date 10/17/2016 Purging Equipment Total Voume (Gal)Time pH Temp (C)Conductance (µS)Turbidity Initial 0 5.90 19.1 1.88 1.3 5.80 17.5 10.79 2.6 6.00 17.5 11.02 Final 3.9 6.00 17.2 8.77 Well Sampling Data Sampling Date Sampling Time Sampling Equipment Sample Observations Final Grab 14:40 5.90 19.4 17.30 Analytical Data Method Container Type and No.Preservation Appendix I VOCs (3) 40 mL glass vials Appendix I Metals (1) 500 mL plastic bottle Comments Lab 287 Bob Bryant Clear Tag illegible 1.3 Electric Water Level Probe TOC 32.97 40.50 245 258 282 7.53 Disposable Teflon Bailer 10/18/2016 14:40 disposable teflon bailer ENCO HCL HNO3 300 Project Name: Lincoln County Landfill Project Location: Crouse, North Carolina Project Number: 1356-07-004 Well ID MW-14 Sampling Personnel (1)(2) Weather Conditions Unusual Site Conditions Water Level Data Measuring Point Location Well Casing Volume Depth to Water (ft) Depth to Base of Well (ft)(well casing volume = water column*0.174) Water Column (ft) Equipment Used to Measure Depths Well Purging Data Date 10/17/2016 Purging Equipment Total Voume (Gal)Time pH Temp (C)Conductance (µS)Turbidity Initial 0 6.90 18.2 2.11 7.8 6.30 18.0 3.88 15,6 6.10 18.0 7.35 Final 23.4 6.30 17.8 0.74 Well Sampling Data Sampling Date Sampling Time Sampling Equipment Sample Observations Final Grab 14:55 5.60 18.3 1.86 Analytical Data Method Container Type and No.Preservation Appendix I VOCs (3) 40 mL glass vials Appendix I Metals (1) 500 mL plastic bottle Comments Lab ENCO HCL HNO3 129 119 118 118 10/18/2016 14:55 disposable teflon bailer 148 Electric Water Level Probe Field Cleaned Typhoon Pump TOC 31.20 76.00 Bob Bryant Clear Tag illegible 44.80 7.8 Project Name: Lincoln County Landfill Project Location: Crouse, North Carolina Project Number: 1356-07-004 Well ID MW-15 Sampling Personnel (1)(2) Weather Conditions Unusual Site Conditions Water Level Data Measuring Point Location Well Casing Volume Depth to Water (ft) Depth to Base of Well (ft)(well casing volume = water column*0.174) Water Column (ft) Equipment Used to Measure Depths Well Purging Data Date 10/17/2016 Purging Equipment Total Voume (Gal)Time pH Temp (C)Conductance (µS)Turbidity Initial 0 6.00 17.5 10.53 0.4 5.40 16.4 44.57 0.8 5.40 16.1 41.34 Final 1.2 15:30 5.30 16.1 31.86 Well Sampling Data Sampling Date Sampling Time Sampling Equipment Sample Observations Final Grab 14:25 6.30 17.1 8.54 Analytical Data Method Container Type and No.Preservation Appendix I VOCs (3) 40 mL glass vials Appendix I Metals (1) 500 mL plastic bottle Comments Lab 53 Bob Bryant Clear 0.4 Electric Water Level Probe TOC 28.26 30.50 55 55 55 2.24 Disposable Teflon Bailer 10/18/2016 14:25 disposable teflon bailer ENCO HCL HNO3 60 Project Name: Lincoln County Landfill Project Location: Crouse, North Carolina Project Number: 1356-07-004 Well ID MW-16R Sampling Personnel (1)(2) Weather Conditions Unusual Site Conditions Water Level Data Measuring Point Location Well Casing Volume Depth to Water (ft) Depth to Base of Well (ft)(well casing volume = water column*0.174) Water Column (ft) Equipment Used to Measure Depths Well Purging Data Date 10/17/2016 Purging Equipment Total Voume (Gal)Time pH Temp (C)Conductance (µS)Turbidity Initial 0 6.00 19.7 2.16 1 vol 6.10 18.3 97.11 2 vol 6.20 18.0 142.00 Final 3vol 12:06 6.20 18.0 161.30 Well Sampling Data Sampling Date Sampling Time Sampling Equipment Sample Observations Final Grab 13:20 6.40 20.7 29.13 Analytical Data Method Container Type and No.Preservation Appendix I VOCs (3) 40 mL glass vials Appendix I Metals (1) 500 mL plastic bottle Comments Lab ENCO HCL HNO3 798 785 765 766 10/18/2016 13:20 disposable teflon bailer 841 Electric Water Level Probe Disposable Teflon Bailer TOC 16.60 21.60 Bob Bryant Clear 5' 0.87 Project Name: Lincoln County Landfill Project Location: Crouse, North Carolina Project Number: 1356-07-004 Well ID MW-17R Sampling Personnel (1)(2) Weather Conditions Unusual Site Conditions Water Level Data Measuring Point Location Well Casing Volume Depth to Water (ft) Depth to Base of Well (ft)(well casing volume = water column*0.174) Water Column (ft) Equipment Used to Measure Depths Well Purging Data Date 10/18/2016 Purging Equipment Total Voume (Gal)Time pH Temp (C)Conductance (µS)Turbidity Initial 0 14:45 4.84 18.6 1.0 14:48 4.98 18.0 3.0 14:54 5.04 17.7 Final 4.5 15:00 5.05 17.7 436.80 Well Sampling Data Sampling Date Sampling Time Sampling Equipment Sample Observations Final Grab 10:20 5.04 18.5 14.16 Analytical Data Method Container Type and No.Preservation Appendix I VOCs (3) 40 mL glass vials Appendix I Metals (1) 500 mL plastic bottle Comments: Lab 69 Gary Simcox 1.5 Electric Water Level Probe TOC 42.29 51.10 66 65 68 8.81 Disposable Teflon Bailer 10/19/2016 10:20 disposable teflon bailer This well could be purged with and sampled with a pump. ENCO Clear HCL HNO3 73 Project Name: Lincoln County Landfill Project Location: Crouse, North Carolina Project Number: 1356-07-004 Well ID MW-18 Sampling Personnel (1)(2) Weather Conditions Unusual Site Conditions Water Level Data Measuring Point Location Well Casing Volume Depth to Water (ft) Depth to Base of Well (ft)(well casing volume = water column*0.174) Water Column (ft) Equipment Used to Measure Depths Well Purging Data Date 10/18/2016 Purging Equipment Total Voume (Gal)Time pH Temp (C)Conductance (µS)Turbidity Initial 0 8:40 6.12 15.1 1.0 8:45 6.13 15.3 51.83 Final Well Sampling Data Sampling Date Sampling Time Sampling Equipment Sample Observations Analytical Data Method Container Type and No.Preservation Appendix I VOCs (3) 40 mL glass vials Appendix I Metals (1) 500 mL plastic bottle Comments Lab disposable teflon bailer ENCO HCL HNO3 227 223 4.68 Electric Water Level Probe Disposable Teflon Bailer TOC 27.32 32.00 Gary Simcox 0.0 Project Name: Lincoln County Landfill Project Location: Crouse, North Carolina Project Number: 1356-07-004 Well ID MW-19 Sampling Personnel (1)(2) Weather Conditions Unusual Site Conditions Water Level Data Measuring Point Location Well Casing Volume Depth to Water (ft) Depth to Base of Well (ft)(well casing volume = water column*0.174) Water Column (ft) Equipment Used to Measure Depths Well Purging Data Date 10/18/2016 Purging Equipment Total Voume (Gal)Time pH Temp (C)Conductance (µS)Turbidity Initial 0 5.70 15.2 0.28 5.60 15.5 0.13 5.90 15.6 7.37 Final 8:45 5.90 15.7 0.01 Well Sampling Data Sampling Date Sampling Time Sampling Equipment Sample Observations Final Grab 9:30 6.40 16.5 3.91 Analytical Data Method Container Type and No.Preservation Appendix I VOCs (3) 40 mL glass vials Appendix I Metals (1) 500 mL plastic bottle Comments Lab 155 Bob Bryant Clear 7.7 Electric Water Level Probe TOC 27.70 72.00 153 155 155 44.30 Field Cleaned Typhoon Pump 10/19/2016 9:30 disposable teflon bailer ENCO HCL HNO3 132 Project Name: Lincoln County Landfill Project Location: Crouse, North Carolina Project Number: 1356-07-004 Well ID MW-20 Sampling Personnel (1)(2) Weather Conditions Unusual Site Conditions Water Level Data Measuring Point Location Well Casing Volume Depth to Water (ft) Depth to Base of Well (ft)(well casing volume = water column*0.174) Water Column (ft) Equipment Used to Measure Depths Well Purging Data Date 10/17/2016 Purging Equipment Total Voume (Gal)Time pH Temp (C)Conductance (µS)Turbidity Initial 0 5.80 18.7 274.30 1.8 5.60 17.2 51.94 3.7 5.80 16.7 14.45 Final 5.5 5.40 16.7 9.81 Well Sampling Data Sampling Date Sampling Time Sampling Equipment Sample Observations Final Grab 5.60 19.7 0.78 Analytical Data Method Container Type and No.Preservation Appendix I VOCs (3) 40 mL glass vials Appendix I Metals (1) 500 mL plastic bottle Comments Lab ENCO HCL HNO3 143 131 120 116 10/18/2016 15:25 disposable teflon bailer 148 Electric Water Level Probe Disposable Teflon Bailer TOC 16.39 27.00 Bob Bryant Clear No tag 10.61 1.8 Project Name: Lincoln County Landfill Project Location: Crouse, North Carolina Project Number: 1356-07-004 Well ID MW-21 Sampling Personnel (1)(2) Weather Conditions Unusual Site Conditions Water Level Data Measuring Point Location Well Casing Volume Depth to Water (ft) Depth to Base of Well (ft)(well casing volume = water column*0.174) Water Column (ft) Equipment Used to Measure Depths Well Purging Data Date 10/18/2016 Purging Equipment Total Voume (Gal)Time pH Temp (C)Conductance (µS)Turbidity Initial 0 8:00 5.26 16.2 1.0 8:05 5.31 16.1 2.0 8:10 5.31 16.1 23.97 Final Well Sampling Data Sampling Date Sampling Time Sampling Equipment Sample Observations Analytical Data Method Container Type and No.Preservation Appendix I VOCs (3) 40 mL glass vials Appendix I Metals (1) 500 mL plastic bottle Comments Lab disposable teflon bailer ENCO HCL HNO3 Gary Simcox 0.5 Electric Water Level Probe TOC 40.36 43.60 107 92 86 3.24 Disposable Teflon Bailer Project Name: Lincoln County Landfill Project Location: Crouse, North Carolina Project Number: 1356-07-004 Well ID MW-24 Sampling Personnel (1)(2) Weather Conditions Unusual Site Conditions Water Level Data Measuring Point Location Well Casing Volume Depth to Water (ft) Depth to Base of Well (ft)(well casing volume = water column*0.174) Water Column (ft) Equipment Used to Measure Depths Well Purging Data Date 10/18/2016 Purging Equipment Total Voume (Gal)Time pH Temp (C)Conductance (µS)Turbidity Initial 0 11:06 5.22 17.1 1.0 11:10 5.20 16.3 2.0 11:14 5.22 16.3 52.59 Final Well Sampling Data Sampling Date Sampling Time Sampling Equipment Sample Observations Final Grab 11:25 5.15 18.2 2.20 Analytical Data Method Container Type and No.Preservation Appendix I VOCs (3) 40 mL glass vials Appendix I Metals (1) 500 mL plastic bottle (1) 500 mL plastic bottle Comments Lab ENCO Clear HCL HNO3 242 241 238 10/19/2016 11:25 disposable teflon bailer This well could be purged with and sampled with a pump. 245 Dissolved Metals Unpreserved Electric Water Level Probe Disposable Teflon Bailer )) TOC 27.71 31.60 Gary Simcox 3.89 0.7 Project Name: Lincoln County Landfill Project Location: Crouse, North Carolina Project Number: 1356-07-004 Well ID MW-25 Sampling Personnel (1)(2) Weather Conditions Unusual Site Conditions Water Level Data Measuring Point Location Well Casing Volume Depth to Water (ft) Depth to Base of Well (ft)(well casing volume = water column*0.174) Water Column (ft) Equipment Used to Measure Depths Well Purging Data Date 10/18/2016 Purging Equipment Total Voume (Gal)Time pH Temp (C)Conductance (µS)Turbidity Initial 0 5.60 18.8 1.03 0.2 12:10 5.80 18.6 236.20 Final Well Sampling Data Sampling Date Sampling Time Sampling Equipment Sample Observations Final Grab 11:00 5.80 18.9 37.12 Analytical Data Method Container Type and No.Preservation Appendix I VOCs (3) 40 mL glass vials Appendix I Metals (1) 500 mL plastic bottle Comments Lab Bob Bryant Clear Well dry at 1 volume 0.2 Electric Water Level Probe TOC 30.39 31.50 167 166 1.11 Disposable Teflon Bailer 10/19/2016 11:00 disposable teflon bailer ENCO HCL HNO3 146 Project Name: Lincoln County Landfill Project Location: Crouse, North Carolina Project Number: 1356-07-004 Well ID MW-25A Sampling Personnel (1)(2) Weather Conditions Unusual Site Conditions Water Level Data Measuring Point Location Well Casing Volume Depth to Water (ft) Depth to Base of Well (ft)(well casing volume = water column*0.174) Water Column (ft) Equipment Used to Measure Depths Well Purging Data Date 10/18/2016 Purging Equipment Total Voume (Gal)Time pH Temp (C)Conductance (µS)Turbidity Initial 0 6.80 18.6 45.69 5.1 6.40 18.1 3.37 10.2 6.70 18.0 0.87 Final 15.3 12:00 6.10 17.7 0.33 Well Sampling Data Sampling Date Sampling Time Sampling Equipment Sample Observations Final Grab 11:00 6.10 19.1 6.86 Analytical Data Method Container Type and No.Preservation Appendix I VOCs (3) 40 mL glass vials Appendix I Metals (1) 500 mL plastic bottle Comments Lab ENCO HCL HNO3 151 147 145 142 10/19/2016 11:00 disposable teflon bailer 117 Electric Water Level Probe Field Cleaned Typhoon Pump TOC 30.83 60.00 Bob Bryant Clear 29.17 5.1 Project Name: Lincoln County Landfill Project Location: Crouse, North Carolina Project Number: 1356-07-004 Well ID MW-26 Sampling Personnel (1)(2) Weather Conditions Unusual Site Conditions Water Level Data Measuring Point Location Well Casing Volume Depth to Water (ft) Depth to Base of Well (ft)(well casing volume = water column*0.174) Water Column (ft) Equipment Used to Measure Depths Well Purging Data Date 10/18/2016 Purging Equipment Total Voume (Gal)Time pH Temp (C)Conductance (µS)Turbidity Initial 0 7.10 20.4 2.84 1.4 6.20 18.5 58.87 2,8 5.90 18.2 39.52 Final 4.2 16:27 5.80 18.1 19.94 Well Sampling Data Sampling Date Sampling Time Sampling Equipment Sample Observations Final Grab 12:55 6.00 21.7 0.38 Analytical Data Method Container Type and No.Preservation Appendix I VOCs & THF (3) 40 mL glass vials Appendix I Metals + Hg, Mn, Fe (1) 250 mL plastic bottle Comments Lab 12:55 23.00 7.90 107 103 102 10/19/2016 Disposable Teflon Bailer 100 Electric Water Level Probe TOC 15.10 Bob Bryant Clear 1.4 disposable teflon bailer ENCO HCL HNO3 Alkalinity/TDS/ Chloride/Sulfate (1) 250 mL plastic bottle None 95 Project Name: Lincoln County Landfill Project Location: Crouse, North Carolina Project Number: 1356-07-004 Well ID MW-27 Sampling Personnel (1)(2) Weather Conditions Unusual Site Conditions Water Level Data Measuring Point Location Well Casing Volume Depth to Water (ft) Depth to Base of Well (ft)(well casing volume = water column*0.174) Water Column (ft) Equipment Used to Measure Depths Well Purging Data Date 10/18/2016 Purging Equipment Total Voume (Gal)Time pH Temp (C)Conductance (µS)Turbidity Initial 0 15:20 5.06 17.7 1.0 15:22 5.13 16.9 3.0 15:27 5.14 16.7 Final 4.5 15:31 5.14 16.7 85.48 Well Sampling Data Sampling Date Sampling Time Sampling Equipment Sample Observations Final Grab 12:30 5.00 18.0 7.53 Analytical Data Method Container Type and No.Preservation Appendix I VOCs & THF (3) 40 mL glass vials Appendix I Metals + Hg, Mn, Fe (1) 250 mL plastic bottle Comments Lab TOC 1.4 359 353 347 Disposable Teflon Bailer 19.29 27.30 Electric Water Level Probe Gary Simcox This well could be purged with and sampled with a pump. ENCO Clear HCL HNO3 Alkalinity/TDS/ Chloride/Sulfate (1) 250 mL plastic bottle None 362 10/19/2016 12:30 disposable teflon bailer 338 8.01 Project Name: Lincoln County Landfill Project Location: Crouse, North Carolina Project Number: 1356-07-004 Well ID MW-28 Sampling Personnel (1)(2) Weather Conditions Unusual Site Conditions Water Level Data Measuring Point Location Well Casing Volume Depth to Water (ft) Depth to Base of Well (ft)(well casing volume = water column*0.174) Water Column (ft) Equipment Used to Measure Depths Well Purging Data Date 10/18/2016 Purging Equipment Total Voume (Gal)Time pH Temp (C)Conductance (µS)Turbidity Initial 0 14:10 4.87 18.6 1.0 14:13 4.85 17.7 3.0 14:19 4.85 17.5 Final 5.0 14:26 4.86 17.6 21.07 Well Sampling Data Sampling Date Sampling Time Sampling Equipment Sample Observations Final Grab 9:45 4.90 17.7 5.02 Analytical Data Method Container Type and No.Preservation Appendix I VOCs & THF (3) 40 mL glass vials Appendix I Metals + Hg, Mn, Fe (1) 250 mL plastic bottle Comments: Lab 9:45 54.80 9.68 93 49 46 10/19/2016 Disposable Teflon Bailer 46 Electric Water Level Probe TOC 45.12 Gary Simcox 1.7 disposable teflon bailer This well could be purged with and sampled with a pump. ENCO Clear HCL HNO3 Alkalinity/TDS/ Chloride/Sulfate (1) 250 mL plastic bottle None 49 Project Name: Lincoln County Landfill Project Location: Crouse, North Carolina Project Number: 1356-07-004 Well ID MW-29 Sampling Personnel (1)(2) Weather Conditions Unusual Site Conditions Water Level Data Measuring Point Location Well Casing Volume Depth to Water (ft) Depth to Base of Well (ft)(well casing volume = water column*0.174) Water Column (ft) Equipment Used to Measure Depths Well Purging Data Date 10/18/2016 Purging Equipment Total Voume (Gal)Time pH Temp (C)Conductance (µS)Turbidity Initial 0 16:35 5.35 17.8 1.0 16:38 5.45 17.2 2.0 16:42 5.48 17.4 263.20 Final Well Sampling Data Sampling Date Sampling Time Sampling Equipment Sample Observations Final Grab 13:20 5.36 18.1 4.68 Analytical Data Method Container Type and No.Preservation Appendix I VOCs & THF (3) 40 mL glass vials Appendix I Metals + Hg, Mn, Fe (1) 250 mL plastic bottle Comments Lab disposable teflon bailer ENCO HCL HNO3 Alkalinity/TDS/ Chloride/Sulfate (1) 250 mL plastic bottle None 245 TOC 43.09 Gary Simcox 0.7 13:20 47.30 4.21 244 244 243 10/19/2016 Disposable Teflon Bailer Electric Water Level Probe Project Name: Lincoln County Landfill Project Location: Crouse, North Carolina Project Number: 1356-07-004 Well ID MW-30 Sampling Personnel (1)(2) Weather Conditions Unusual Site Conditions Water Level Data Measuring Point Location Well Casing Volume Depth to Water (ft) Depth to Base of Well (ft)(well casing volume = water column*0.174) Water Column (ft) Equipment Used to Measure Depths Well Purging Data Date 10/18/2016 Purging Equipment Total Voume (Gal)Time pH Temp (C)Conductance (µS)Turbidity Initial 0 6.00 19.1 0.45 5.60 17.0 370.00 5.60 16.4 358.00 Final 5.60 16.4 718.70 Well Sampling Data Sampling Date Sampling Time Sampling Equipment Sample Observations Final Grab 12:40 6.10 19.1 12.90 Analytical Data Method Container Type and No.Preservation Appendix I VOCs & THF (3) 40 mL glass vials Appendix I Metals + Hg, Mn, Fe (1) 250 mL plastic bottle Comments Lab 12:40 64.00 9.90 41 46 86 10/19/2016 Disposable Teflon Bailer 94 Electric Water Level Probe TOC 54.10 1.7 disposable teflon bailer ENCO HCL HNO3 Alkalinity/TDS/ Chloride/Sulfate (1) 250 mL plastic bottle None 71 Project Name: Lincoln County Landfill Project Location: Crouse, North Carolina Project Number: 1356-07-004 Well ID MW-31 Sampling Personnel (1)(2) Weather Conditions Unusual Site Conditions Water Level Data Measuring Point Location Well Casing Volume Depth to Water (ft) Depth to Base of Well (ft)(well casing volume = water column*0.174) Water Column (ft) Equipment Used to Measure Depths Well Purging Data Date 10/18/2016 Purging Equipment Total Voume (Gal)Time pH Temp (C)Conductance (µS)Turbidity Initial 0 15:55 5.61 17.0 2.0 16:02 5.43 16.4 4.0 16:10 5.32 16.1 Final 6.0 16:19 5.57 16.1 156.30 Well Sampling Data Sampling Date Sampling Time Sampling Equipment Sample Observations Final Grab 12:55 5.55 16.7 65.82 Analytical Data Method Container Type and No.Preservation Appendix I VOCs & THF (3) 40 mL glass vials Appendix I Metals + Hg, Mn, Fe (1) 250 mL plastic bottle Comments Lab disposable teflon bailer This well could be purged with and sampled with a pump. ENCO slightly turbid HCL HNO3 Alkalinity/TDS/ Chloride/Sulfate (1) 250 mL plastic bottle None 59 TOC 32.48 Gary Simcox 1.8 12:55 42.80 10.32 85 59 48 10:19 Disposable Teflon Bailer 61 Electric Water Level Probe Project Name: Lincoln County Landfill Project Location: Crouse, North Carolina Project Number: 1356-07-004 Well ID MW-32R Sampling Personnel (1)(2) Weather Conditions Unusual Site Conditions Water Level Data Measuring Point Location Well Casing Volume Depth to Water (ft) Depth to Base of Well (ft)(well casing volume = water column*0.174) Water Column (ft) Equipment Used to Measure Depths Well Purging Data Date 0/17/16 Purging Equipment Total Voume (Gal)Time pH Temp (C)Conductance (µS)Turbidity Initial 0 7.00 18.5 1.45 1.6 6.60 17.7 57.26 3.2 6.60 16.7 83.86 Final 4.8 12:53 5.70 16.6 504.80 Well Sampling Data Sampling Date Sampling Time Sampling Equipment Sample Observations Final Grab 13:40 7.00 20.7 14.35 Analytical Data Method Container Type and No.Preservation Appendix I VOCs (3) 40 mL glass vials Appendix I Metals (1) 500 mL plastic bottles Comments Lab ENCO HCL HNO3 72 67 67 64 10/18/2016 13:40 disposable teflon bailer 81 9.22 Disposable Teflon Bailer Electric Water Level Probe TOC 18.03 28.05 Bob Bryant Clear 1.6 Project Name: Lincoln County Landfill Project Location: Crouse, North Carolina Project Number: 1356-07-004 Well ID MW-33 Sampling Personnel (1)(2) Weather Conditions Unusual Site Conditions Water Level Data Measuring Point Location Well Casing Volume Depth to Water (ft) Depth to Base of Well (ft)(well casing volume = water column*0.174) Water Column (ft) Equipment Used to Measure Depths Well Purging Data Date 10/17/2016 Purging Equipment Total Voume (Gal)Time pH Temp (C)Conductance (µS)Turbidity Initial 0 7.50 19.4 13.54 1.6 6.70 18.2 302.10 2.0 13:59 6.00 18.2 261.20 Final Well Sampling Data Sampling Date Sampling Time Sampling Equipment Sample Observations Final Grab 13:55 6.40 19.9 1.21 Analytical Data Method Container Type and No.Preservation Appendix I VOCs (3) 40 mL glass vials Appendix I Metals (1) 500 mL plastic bottles Comments Lab Bob Bryant Clear MW-33 1.6 Electric Water Level Probe Dry at 2 gallons TOC 16.33 25.30 94 91 95 8.97 Disposable Teflon Bailer 10/18/2016 13:55 disposable teflon bailer ENCO HCL HNO3 101 Project Name: Lincoln County Landfill Project Location: Crouse, North Carolina Project Number: 1356-07-004 Well ID MW-33A Sampling Personnel (1)(2) Weather Conditions Unusual Site Conditions Water Level Data Measuring Point Location Well Casing Volume Depth to Water (ft) Depth to Base of Well (ft)(well casing volume = water column*0.174) Water Column (ft) Equipment Used to Measure Depths Well Purging Data Date 10/17/2016 Purging Equipment Total Voume (Gal)Time pH Temp (C)Conductance (µS)Turbidity Initial 0 6.70 18.5 11.04 8.4 6.80 16.9 3.15 16.8 7.00 16.8 0.28 Final 25.8 13:46 7.00 16.3 0.28 Well Sampling Data Sampling Date Sampling Time Sampling Equipment Sample Observations Final Grab 14:05 6.60 19.5 1.71 Analytical Data Method Container Type and No.Preservation Appendix I VOCs (3) 40 mL glass vials Appendix I Metals (1) 500 mL plastic bottles Comments Lab ENCO HCL HNO3 215 257 250 234 10/18/2016 14:05 disposable teflon bailer 239 48.25 Field Cleaned Typhoon Pump Electric Water Level Probe TOC 16.30 64.55 Bob Bryant Clear 8.4 Project Name: Lincoln County Landfill Project Location: Crouse, North Carolina Project Number: 1356-07-004 Well ID MW-35 Sampling Personnel (1)(2) Weather Conditions Unusual Site Conditions Water Level Data Measuring Point Location Well Casing Volume Depth to Water (ft) Depth to Base of Well (ft)(well casing volume = water column*0.174) Water Column (ft) Equipment Used to Measure Depths Well Purging Data Date 10/18/2016 Purging Equipment Total Voume (Gal)Time pH Temp (C)Conductance (µS)Turbidity Initial 0 7.00 16.4 79.55 5.60 16.0 >1100 Final Well Sampling Data Sampling Date Sampling Time Sampling Equipment Sample Observations Final Grab 10:25 6.20 17.6 12.04 Analytical Data Method Container Type and No.Preservation Appendix I VOCs (3) 40 mL glass vials Appendix I Metals (1) 500 mL plastic bottles Comments Lab ENCO HCL HNO3 27 24 10/19/2016 10:25 disposable teflon bailer 23 2.54 Disposable Teflon Bailer Electric Water Level Probe TOC 34.71 37.25 Bob Bryant Clear Well was dry at 1 volume 0.4 Project Name: Lincoln County Landfill Project Location: Crouse, North Carolina Project Number: 1356-07-004 Well ID MW-35A Sampling Personnel (1)(2) Weather Conditions Unusual Site Conditions Water Level Data Measuring Point Location Well Casing Volume Depth to Water (ft) Depth to Base of Well (ft)(well casing volume = water column*0.174) Water Column (ft) Equipment Used to Measure Depths Well Purging Data Date 10/18/2016 Purging Equipment Total Voume (Gal)Time pH Temp (C)Conductance (µS)Turbidity Initial 0 6.00 16.7 165.30 5.9 6.30 16.3 19.01 11,83 6.40 15.9 7.54 Final 17.7 10:30 6.20 16.0 2.06 Well Sampling Data Sampling Date Sampling Time Sampling Equipment Sample Observations Final Grab 10:30 6.20 17.5 12.04 Analytical Data Method Container Type and No.Preservation Appendix I VOCs (3) 40 mL glass vials Appendix I Metals (1) 500 mL plastic bottles Comments Lab 63 Bob Bryant Clear 5.9 Electric Water Level Probe TOC 35.68 69.69 58 62 63 34.01 Field Cleaned Typhoon Pump 10/19/2016 10:40 disposable teflon bailer ENCO HCL HNO3 23 Project Name: Lincoln County Landfill Project Location: Crouse, North Carolina Project Number: 1356-07-004 Well ID MW-36 Sampling Personnel (1)(2) Weather Conditions Unusual Site Conditions Water Level Data Measuring Point Location Well Casing Volume Depth to Water (ft) Depth to Base of Well (ft)(well casing volume = water column*0.174) Water Column (ft) Equipment Used to Measure Depths Well Purging Data Date 10/18/2016 Purging Equipment Total Voume (Gal)Time pH Temp (C)Conductance (µS)Turbidity Initial 0 17:10 5.29 16.2 1.0 17:14 5.27 15.4 2.0 17:18 5.30 15.4 Final 3.0 17:22 5.32 15.5 792.10 Well Sampling Data Sampling Date Sampling Time Sampling Equipment Sample Observations Final 23.0 9:10 5.35 15.6 6.38 Analytical Data Method Container Type and No.Preservation Appendix I VOCs & THF (3) 40 mL glass vials Appendix I Metals + Hg, Mn, Fe(1) 250 mL plastic bottle Comments: Lab TOC 1.0 Gary Simcox Field Cleaned Mega Monsoon 30.39 36.80 6.41 Electric Water Level Probe Disposable Teflon Bailer 26 23 20 20 10/19/2016 9:10 Clear Developed well with monsoon pump (20 gallons) turbidity is <10 ntu ENCO HCL HNO3 Alkalinity/TDS/ Chloride/Sulfate (1) 250 mL plastic bottle None 22 Surface Water and Leachate Samples Lincoln County Landfill S&ME Project 1356-07-004 Location Date Time Sampled Sample Observations SW-1 10/17/2016 15:25 Clear SW-2 10/17/2016 16:25 Clear SW-3 10/17/2016 not sampled Dry SW-4 10/17/2016 13:50 Slightly Turbid SW-5 10/17/2016 not sampled No Flow SW-6 10/17/2016 not sampled Dry Lift Station 10/17/2016 12:45 (Sampled from Pump #2 Lift Station) Appendix IV – Statistical Analysis Procedures Appendix V – Graphs Depicting Concentrations over Time for Wells with a Statistically Significant Increase Appendix VI– Monthly Methane Data (April 2016 – October 2016) L E G E N D WWW.SMEINC.COM 1 METHANE MONTORING LOCATIONS LINCOLN COUNTY LANDFILL CROUSE, NORTH CAROLINA LIFTSTATION S C A L E H O U S E S H O P A R E A