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Home My WebLink About7407_CandDLandfillInc_20161109_GWMR_DIN28039 WATER QUALITY MONITORING REPORT NOVEMBER 2016 SEMIANNUAL SAMPLING EVENT CONSTRUCTION AND DEMOLITION DEBRIS LANDFILL, PITT COUNTY FACILITY PERMIT NO. 74-07 Prepared for: C&D Landfill, Inc. 802 Recycling Lane Greenville, North Carolina 27834 (252) 757-0023 Prepared by: SCS ENGINEERS, PC 2520 Whitehall Park Drive, Suite 450 Charlotte, North Carolina 28273 (704) 504-3107 License Number C-1837 Date: January 20, 2017 File No.: 02214708.00 Task 1 Offices Nationwide www.scsengineers.com C&D Landfill, Water Quality Monitoring Report November 2016 Semiannual Sampling Event WATER QUALITY MONITORING REPORT NOVEMBER 2016 SEMIANNUAL SAMPLING EVENT CONSTRUCTION AND DEMOLITION DEBRIS LANDFILL, PITT COUNTY FACILITY PERMIT NO. 74-07 Presented To: C&D Landfill, Inc. 802 Recycling Lane Greenville, North Carolina 27834 (252) 757-0023 Presented From: SCS ENGINEERS, PC 2520 Whitehall Park Drive, Suite 450 Charlotte, North Carolina 28273 (704) 504-3107 License Number C-1837 Date: January 20, 2017 File No.: 02214708.00 Task 1 C&D Landfill, Water Quality Monitoring Report November 2016, Semiannual Sampling Event i Table of Contents Section ....................................................................................................................... Page 1 INTRODUCTION ............................................................................................................... 1 2 FIELD ACTIVITIES .............................................................................................................. 3 3 GROUNDWATER LEVELS AND FLOW ............................................................................... 4 4 WATER QUALITY FINDINGS ............................................................................................. 5 4.1 GROUNDWATER ANALYTICAL RESULTS ............................................................... 5 4.1.1 Volatile Organic Compounds (VOCs) ..................................................... 5 4.1.2 Semivolatile Organic Compounds (SVOCs) and Herbicides ................... 6 4.1.3 Metals ..................................................................................................... 6 4.1.4 Inorganic Parameters .............................................................................. 7 4.1.5 Field Parameters ..................................................................................... 7 4.2 SURFACE WATER ANALYTICAL RESULTS .............................................................. 7 4.2.1 VOCs ...................................................................................................... 7 4.2.2 Metals ..................................................................................................... 7 4.2.3 Field Parameters ..................................................................................... 7 5 SUMMARY ........................................................................................................................ 9 5.1 VOCs Detection Summary ...................................................................................... 9 5.2 SVOCs and Herbicides Detection Summary ......................................................... 10 5.3 Metals Detection Summary .................................................................................. 10 5.4 Inorganic and Field Parameters ........................................................................... 12 5.5 Conclusions .......................................................................................................... 12 Tables Table 1 – Groundwater Level and Flow Data Table 2 – Summary of Groundwater Quality Data – Detected Constituents Only Table 3 – Summary of Surface Water Quality Data – Detected Constituents Only Table 4 – Historical Groundwater and Surface Water Quality Data Figures Figure No. 1 – Groundwater Surface Contour Map Attachments Attachment 1 – Environment 1, Incorporated Laboratory Field and Analytical Results Report Attachment 2 – Environmental Monitoring Reporting Form and Electronic Data Deliverables (EDDs; Electronic Files Only) C&D Landfill, Water Quality Monitoring Report November 2016 Semiannual Sampling Event 1 SCS Engineers, PC (SCS) is pleased to submit this Water Quality Monitoring Report for the Construction and Demolition Debris Landfill, located in Greenville, Pitt County, North Carolina on behalf of the C&D Landfill, Inc. This report provides background information, a description of field activities, data, summary and analysis of the laboratory analytical results from the groundwater and surface water monitoring sampling event performed in November 2016. 1 INTRODUCTION C&D Landfill, Inc. operates the Construction and Demolition Debris Landfill (C&D Landfill) Phase 1 and Phase 2 located at 802 Recycling Lane, Greenville, Pitt County, North Carolina. The location of the landfill is shown on Figure 1. The C&D Landfill Phase 1 became operational in 2001 and Phase 2 became operational in 2009. The baseline monitoring was conducted in August 2009 at Phase 2 of the C&D Landfill. Based on review of previously prepared documentation, groundwater monitoring has been performed at the permitted landfill since May 2001 for Phase 1 and August 2009 for Phase 2. State and federal regulations applicable to landfills are enforced by the North Carolina Department of Environmental Quality (NCDEQ), Division of Waste Management (DWM), Solid Waste Section (SWS). The C&D Landfill (Phase 1 and Phase 2) is permitted by the NCDEQ DWM under Permit No. 74-07, which requires semiannual monitoring of groundwater and surface water quality. This monitoring event is the second (2nd) semiannual monitoring event for year 2016. This report provides an evaluation of surface water and groundwater quality for the C&D Landfill Phase 1 and Phase 2. Currently, the monitoring program network at the landfill consists of twelve (12) groundwater monitoring wells within Phase 1, seven (7) groundwater monitoring wells within Phase 2, and four (4) on-site surface water sampling locations. There are two monitoring programs on-going at the site, the assessment monitoring program related to monitoring wells MW-3S, MW-3A, MW-8, and MW-12S, and detection monitoring related to the remainder of the monitoring wells. Phases 1 and 2 are separated by a man-made (channelized) drainage feature that may have once been a natural stream that originates onsite. This drainage feature predates either phase of the landfill. Within Phase 1 area there is one up gradient, background well designated as MW-1S, and eight (8) down gradient compliance wells designated MW-2S, MW-3S, MW-4, MW-5, MW-6, MW-7, MW-3A, and MW-8, as well as three deeper wells MW-1D, MW-2D, and MW- 3D. Within Phase 2 area there is one up gradient, background well designated MW-9A, and six (6) down gradient compliance wells designated MW-10, MW-11, MW-12S, MW-13, MW-14S, and one deeper well MW-14D. Monitoring well MW-12S is located across and downgradient of the man-made drainage feature from Phase 1 well MW-8. The surface water sample locations are designated as SW-1, SW-2, SW-3, and SW-4. SW-1 is a background surface water location. SW-1 and SW-3 monitor a natural stream on the south side of Phase 1 that originates offsite to the east, with SW-1 as background. SW-2 and SW-4 monitor a channelized stream on the west side of Phase 2 that originates offsite to the north, with SW-3 as background. SW-2 is located below the confluence of the interstitial man-made drainage feature and the channelized stream on the west side of Phase 2. C&D Landfill, Water Quality Monitoring Report November 2016 Semiannual Sampling Event 2 The locations of the monitoring wells and surface water points are showed on Figure 1. The four deeper wells mentioned above, MW-1D, MW-2D, and MW-3D (Phase 1) and MW- 14D (Phase 2) are to be sampled every other year during every spring monitoring event. These wells were last sampled during the Spring 2015 monitoring event, and will next be sampled during the Spring 2017 monitoring event. C&D Landfill, Water Quality Monitoring Report November 2016 Semiannual Sampling Event 3 2 FIELD ACTIVITIES On November 9 and 10, 2016 Environment 1, Incorporated personnel collected groundwater samples from thirteen (13) groundwater monitoring wells and three (3) surface water sampling locations at the C&D Landfill for laboratory analysis of constituents listed in Appendix I of the 40 Code of Federal Regulations (CFR) Part 258 (Constituents for Detection Monitoring), Appendix II of the CFR Part 258 (Constituents for Assessment Monitoring), tetrahydrofuran, cyanide, and sulfide. Groundwater monitoring well MW-5 was not sampled during this monitoring event due to insufficient water in this well. Surface water sample was not collected also from location SW-4 due to dry conditions existing at this point. The groundwater and surface water samples were collected and handled in accordance with the sampling protocols included in the Sampling and Analysis Plan dated May 2008 and Groundwater Assessment Work Plan dated June 2009, both prepared for the site by David Garrett & Associates. The SWS Guidelines for Groundwater, Soil, and Surface Water Sampling were also used during this monitoring event. Groundwater was purged and samples were collected from the monitoring wells using bailing sampling procedures. Total well depth, condition of the casing, and the groundwater recharge rate were used to determine the purging and sample collection method employed at each monitoring well. Prior to groundwater sampling, each monitoring well was purged of a minimum of three well volumes of water. During purging, measurements were taken in the field of conductivity, pH, temperature, water levels, and turbidity. Measured field parameters and additional observations pertaining to the C&D Landfill sampling locations are provided in the laboratory analytical report, which is included in Attachment 1. All groundwater samples were placed into laboratory-supplied sample bottles by a technician wearing a new pair of nitrile gloves. Surface water samples were collected into sample containers by direct submersion in the creek and/or tributary. One round of surface water field parameters consisting of conductivity, pH, temperature, and turbidity, was measured and recorded at each sampling location prior to collecting the sample. Surface water samples were placed into laboratory-supplied sample containers by a technician wearing a new pair of nitrile gloves. All reusable sampling equipment was properly decontaminated between sampling locations. Disposable sampling equipment and material was discarded after each use. Following collection, each groundwater and surface water sample was immediately placed on ice in a sample cooler for delivery to Environment 1, a North Carolina certified laboratory located in Greenville, North Carolina. Proper chain-of-custody documentation practices were followed during collection and transportation of each sample; the documentation is included in Attachment 1 of this report. Chain-of-custody provides details of the laboratory analyses requested and performed on the samples. The laboratory analytical report is provided in the Attachment 1 also. C&D Landfill, Water Quality Monitoring Report November 2016 Semiannual Sampling Event 4 3 GROUNDWATER LEVELS AND FLOW Groundwater levels were gauged in the monitoring wells on November 9 and 10, 2016. Depths to groundwater were measured using an electronic water level meter that was thoroughly decontaminated between wells. Depth-to-water measurements were taken after the wells were opened for a sufficient period of time to allow water levels to equilibrate with atmospheric pressure. Water level data and groundwater elevation data are summarized on Table 1. The depth to groundwater across the site measured relative to the top of the polyvinyl chloride (PVC) casing ranged from 3.19 feet (MW-10; Phase 2) to 11.03 feet (MW-3S; Phase 1), consistent with site surface topography. Based on the water level data collected during this monitoring event, a Groundwater Surface Contour Map was prepared and is presented as Figure 1. Groundwater levels during this monitoring event were either unchanged or slightly lower than the May 2016 levels, due to the overall dry weather conditions. The pattern of the water-table contours indicated that the horizontal component of shallow groundwater flow at the site is generally to the south and southwest, which is consistent with the site surface topography and drainage features. In general, the groundwater flow direction is primarily towards the southwestern property boundary and continues to flow in the direction of areas where there are no identified groundwater users, and rather flat gradients extending through agricultural and wooded marshy land leading to the Tar River. Much of the downgradient area is beneath the 100-year flood level and is not anticipated to undergo development or groundwater use in the near future. The estimated values for hydraulic conductivity and porosity, as well as the calculated hydraulic gradient and groundwater flow velocity are presented in Table 1. The hydraulic gradient of the water table that is a horizontal gradient, calculated based on data from Figure 1, varies from approximately 0.003 to 0.015 at the site. The corresponding calculated flow velocities fluctuate between 0.003 to 0.079 feet per day. Please note that for all the monitoring wells, the estimated value for hydraulic conductivity comes from individual well aquifer tests performed by EFM, Inc. and effective porosity in the shallow aquifer are values approximated based on the grain-size data from lab testing of site soils for Phase 2 Design Hydrogeologic Report. C&D Landfill, Water Quality Monitoring Report November 2016 Semiannual Sampling Event 5 4 WATER QUALITY FINDINGS Concentrations of detected constituents in groundwater samples were compared to analyte- specific Solid Waste Section Limits (SWSLs) established by the SWS and NCDEQ rule 15A NCAC 02L .0202 Groundwater Quality Standards (2L). Concentrations of detected constituents in surface water samples were compared to analyte-specific SWSLs and the 15A NCAC 2B.0211 surface water quality standards (2B) established for class C waters. If the reported concentration is less than the SWSL, the analytical result is qualified by the laboratory and/ or SCS as estimated per the SWS requirement, and is flagged with a “J” qualifier. Table 2 presents a summary of detected constituents only, in groundwater. Table 3 presents summary of detected constituents only, in surface water. In both tables, constituent analytical results that exceed their associated 2L or 2B standard, where applicable, were shaded. Table 4 presents summary of historically detected constituents only, in the groundwater and/ or surface water samples collected at the C&D Landfill. A hard copy of the laboratory report from Environment 1, Incorporated with a copy of the chain- of-custody form is included in Attachment 1. All laboratory analytical results and field parameter data for groundwater and surface water are included in an electronic data deliverable (EDD) spreadsheet format file specified by the SWS (available as electronic file only). 4.1 GROUNDWATER ANALYTICAL RESULTS The summary of constituents detected in the groundwater during the November 2016 semiannual water quality monitoring event is provided in the sections below. 4.1.1 VOLATILE ORGANIC COMPOUNDS (VOCS) Acetone, benzene, 1,2-dichloroethane, cis-1,2-dichloroethene, ethylbenzene, naphthalene, tetrahydrofuran, toluene, vinyl chloride, and xylene were detected in one or more of the monitoring wells associated with Phase 1 and/ or Phase 2 during this monitoring event. Benzene was detected at concentration above the applicable SWSL and 2L Standard in the three assessment wells MW-3S, MW-8, and MW-12S. Vinyl chloride was reported at concentration above the SWSL and 2L Standard in the monitoring wells MW-10 and MW-12S. Tetrahydrofuran was detected in six monitoring wells (MW-3S, MW-3A, MW-4, MW-6, MW-7, and MW-8) associated with Phase I and in three monitoring wells (MW-10, MW-12S, and MW- 14S) associated with Phase 2 during this monitoring event. The SWSL and 2L Standard have not yet been established for this compound. No other VOCs were reported above their respective compliance limits in the groundwater samples collected from Phase 1 and Phase 2 monitoring wells. All detections were summarized on Table 2. C&D Landfill, Water Quality Monitoring Report November 2016 Semiannual Sampling Event 6 4.1.2 SEMIVOLATILE ORGANIC COMPOUNDS (SVOCS) AND HERBICIDES Herbicides (per 40 CFR 258) were not reported in any of the groundwater samples collected from Phase 1 or Phase 2 assessment monitoring wells during November 2016 monitoring event. One Appendix II SVOC (per 40 CFR 258), acenaphthene, was reported present in the groundwater sample collected from Phase 1 assessment monitoring well during November 2016 monitoring event. The detected concentration of acenaphthene (SVOC) in well MW-3S was reported below their applicable SWSLs and 2L Standards. No other SVOCs were detected in the sampled assessment wells. 4.1.3 METALS Fifteen (15) metals were detected in one or more of the monitoring wells associated with Phase 1 during November 2016 monitoring event. Out of the fifteen detected metals, arsenic, barium, chromium, cobalt, and mercury were found at concentrations equal to or above the applicable SWSLs in one or more of the collected groundwater samples. Arsenic, barium, chromium, cobalt, mercury, and vanadium were found at concentrations in excess of their applicable 2L Standards. Arsenic was detected in wells MW-3S, MW-6, and MW-8 at concentrations above its 2L Standard. Barium and chromium were reported in well MW-3S at concentrations in excess of their respective 2L Standards. Cobalt was detected above its 2L Standard in wells MW-2S, MW-3S, MW-3A, MW-6, MW-7, and MW-8. Vanadium was present at concentrations in excess of the established 2L Standard for this metal in all Phase 1 monitoring wells, including the background well MW-1S. Except for vanadium, no other detected metals were present at concentrations above compliance limits in the background well MW-1S, and except for mercury, ALL of these metals were reported in the background well MW-1S. Thirteen (13) metals were detected in one or more of the monitoring wells associated with Phase 2 during this monitoring event. Out of thirteen detected metals, arsenic, barium, and chromium were found in excess or equal to the applicable SWSLs. Arsenic, chromium, cobalt and vanadium were found at concentrations in excess of their applicable 2L Standards. Arsenic was found at concentration above the 2L Standard in well MW-12S (assessment well). Chromium and cobalt were found at concentrations above the respective 2L Standards in MW-10 and MW-12S (assessment well). Cobalt was also reported present in MW-14S (assessment well). Vanadium was present in the monitoring wells MW-10, MW-11, MW-12S, MW-13, and MW-14S at concentrations above its 2L Standard. Well MW-12S is located across the shallow drainage feature from MW-8 (Phase 1 assessment well). Cobalt detected in the groundwater sample collected from the background well MW-9A was reported at concentration below the 2L Standard, and arsenic, chromium and vanadium were not detected in the MW-9A groundwater sample. C&D Landfill, Water Quality Monitoring Report November 2016 Semiannual Sampling Event 7 No other metals were reported above their respective compliance limits in the groundwater samples collected from Phase 1 and Phase 2 monitoring wells. All detections were summarized on Table 2. 4.1.4 INORGANIC PARAMETERS Sulfide was reported at an estimated concentration above the method detection limit in Phase 2 assessment well MW-12S. Cyanide was not detected in the groundwater samples collected from either Phase 1 or Phase 2 assessment wells. 4.1.5 FIELD PARAMETERS The pH readings measured in Phase 1 monitoring wells ranged between 6.4 (MW-2S) Standard Units (SU) to 6.8 SU (MW-3S, MW-3A, MW-6), and for wells MW-2S, and MW-4 were outside the 2L Standard pH range of 6.5 to 8.5 SU specified in the 15A NCAC 02L .0202[c] (Table 2). The pH readings measured in Phase 2 monitoring wells ranged between 6.3 SU (MW-10 and MW-13) to 7.1 SU (MW-9A), and for wells MW-10. MW-11, MW-13, and MW-14S were outside the 2L Standard pH range. Turbidity values at the time of sampling all monitoring wells ranged from less than 1 (MW-12S; Phase 2) to 40.9 (MW-9A; Phase 2) nephelometric turbidity units (NTUs). Specific conductivity values ranged between 352 (MW-14S; Phase 2) and 3,140 (MW-3S; Phase 1) microsiemens per centimeter (µS/cm). 4.2 SURFACE WATER ANALYTICAL RESULTS The summary of constituents detected in the surface water during the November 2016 semiannual water quality monitoring event is provided in the sections below. 4.2.1 VOCS Two VOCs, 2-Butanone and tetrahydrofuran, were detected in one or more of the collected surface water samples. 2-Butanone was reported in the sample collected at SW-1 location and tetrahydrofuran was present in the surface water from SW-1 and SW-2 locations. Detected concentrations did not exceed either SWSL or 2B Standard. Table 3 and the analysis report in Attachment 1 provide further details. 4.2.2 METALS Thirteen (13) metals were detected in one or more surface water samples. None of the detected metals were present at concentrations above the applicable SWSLs and/ or 2B surface water quality standards for these constituents (Table 3). C&D Landfill, Water Quality Monitoring Report November 2016 Semiannual Sampling Event 8 4.2.3 FIELD PARAMETERS The pH readings measured in all surface water samples were at 7.1 SU and within the 2B surface water quality standard pH range of 6.0 to 9.0 SU specified in the 15A NCAC 2B (Table 3). Turbidity values at the time of sampling the surface water samples ranged from 4.32 (SW-2) to 18.3 (SW-3) NTUs. Specific conductivity values ranged between 189 (SW-3) and 318 (SW-2) µS/cm. C&D Landfill, Water Quality Monitoring Report November 2016 Semiannual Sampling Event 9 5 SUMMARY The results of the November 2016 groundwater and surface water quality monitoring event performed at the C&D Landfill indicated that the overall water quality has been steady and consistent with the results reported during previous semiannual sampling events. The results are summarized in more detail in the sections below. 5.1 VOCS DETECTION SUMMARY During the November 2016 monitoring event benzene and vinyl chloride were present at concentrations in excess of their SWSL and 2L Standards. In addition, acetone, 1,2- dichloroethane, cis-1,2-dichloroethene, ethylbenzene, naphthalene, tetrahydrofuran, toluene, vinyl chloride, and xylene were reported in one or more of the monitoring wells at concentrations above MDL, however below the applicable SWSLs and 2L Standards. None of the constituents detected above MDL, but below SWSLs and 2L Standards, show a trend and have not been tied to landfill operations. Benzene was found in MW-3S and MW-8, Phase 1 assessment wells, and MW-12S, Phase 2 assessment well, at concentrations in excess of the 2L Standard established for benzene. The presence of benzene has been consistent with its historical detections reported for well MW-3S. The detected concentration appeared slightly lower compared to that reported during the May 2016 monitoring event. Historically benzene has been reported four times in the groundwater sample collected from MW-8 and five times in the groundwater samples collected from well MW-12S in excess of the 2L Standard. Reported concentrations were higher compared to the previous detections. Vinyl chloride was found in Phase 2 monitoring wells MW-10 and MW-12S (assessment well) at concentrations in excess of the 2L Standard during the November 2016 monitoring event. Vinyl chloride has been previously reported in well MW-10 in May 2016. With one exception, the November 2015 monitoring event, this compound has been consistently present in well MW-12S samples at concentrations in excess of its standard, since the May 2012 monitoring event. The detected concentration appeared higher compared to that reported during the May 2016 monitoring event. Tetrahydrofuran was detected in the groundwater samples collected from nine (9) monitoring wells during the November 2016 monitoring event: MW-3S, MW-3A, MW-4, MW-6, MW-7, MW-8, MW-10, MW-12S, and MW-14S. Tetrahydrofuran has been consistently present in the groundwater at the site since sampling for this parameter began in 2011. There is no regulatory standard established for tetrahydrofuran, therefore the implications of these results have yet to be determined. VOCs were not detected in the surface water at the site above either applicable SWSLs or 2B Standards. Historically, the presence of VOCs in the surface water samples has been inconsistent and no trends could be discerned from the collected data. The historical analytical data for previously detected VOCs in the groundwater and surface water are presented in Table 4. C&D Landfill, Water Quality Monitoring Report November 2016 Semiannual Sampling Event 10 5.2 SVOCS AND HERBICIDES DETECTION SUMMARY One SVOC, acenaphthene, was reported in well MW-3S below its applicable SWSL and 2L Standard. Historically, SVOCs were not detected in the groundwater across the site. Herbicides were not reported during the November 2016 monitoring event. Data from the May 2010, 2012, 2013, 2014, and May 2016 monitoring events indicate trace values of common herbicides that might have been used during the former agricultural activities at the site. The impact might originate from a man-made drainage ditch between Phase 1 and Phase 2; however the full history of this portion of the site is unknown. 5.3 METALS DETECTION SUMMARY Arsenic, barium, chromium, cobalt, mercury and vanadium were found in the groundwater at concentrations equal to or in excess of their respective 2L Standards during the November 2016 monitoring event in one or more Phase 1 and Phase 2 monitoring wells. These detections, however, do not appear to indicate any consistent pattern. Arsenic was detected in MW-3S, MW-6, MW-8, and MW-12S above its 2L Standard during the November 2016 monitoring event. Arsenic has been consistently reported in MW-3S, MW-6 and MW-8 groundwater, however this was the third arsenic was detected at concentrations in excess of the 2L Standard in wells MW-3S and MW-8, and the first in well MW-6. Arsenic has been present at concentrations in excess of 2L Standard in well MW-12S since the November 2011 monitoring event. The detected concentration in this well appeared the highest during this monitoring event. Arsenic was reported below the SWSL and 2L Standard in the background well MW-1S (Phase 1) during this monitoring event. Historically arsenic has been consistently present in the groundwater across the site, including the groundwater from background wells; however the majority of the detected concentrations were below the 2L Standard. Barium was detected in well MW-3S above its 2L Standard during the November 2016 monitoring event. Barium has been consistently present above the SWSL in this well; however this is a first instance with detected concentration reported in excess of the 2L Standard. Chromium was detected in wells MW-3S, MW-10, and MW-12S above its 2L Standard during the November 2016 monitoring event. This was the first occurrence of chromium above the 2L Standard in wells MW-3S and MW-10, and sixth in MW-12S. Reported concentrations appeared higher compared to those reported in the May 2016 monitoring events. Historically chromium has been consistently present in the groundwater across the site, including the groundwater from both background wells; however the majority of the detected concentrations were below the 2L Standard. Cobalt was found in excess of its 2L Standard in Phase 1 wells MW-3S, MW-3A, MW-8 (assessment wells), MW-2S, MW-6, MW-7, and Phase 2 assessment wells MW-10, MW-12S, and MW-14S. Historically, cobalt has been present in the groundwater samples collected from all abovementioned wells at concentrations above the 2L Standard; however no data trends can be discerned. Cobalt has been reported in the groundwater samples collected from background wells MW-1S and MW-9A at estimated concentrations below its 2L Standard. C&D Landfill, Water Quality Monitoring Report November 2016 Semiannual Sampling Event 11 Mercury was reported at concentration above 2L Standard in one assessment well MW-3S. This is the first occurrence of mercury detection for this well reported in excess of 2L Standard since the May 2014 monitoring event. Except for MW-9A, vanadium was detected in all sampled monitoring wells at concentrations at or above the 2L Standard, but below the SWSL. Vanadium has been consistently present in the groundwater across the site. Detected concentrations during the November 2016 monitoring event appeared lower for the majority of the wells compared to the May 2016 reported detections. It should be noted that the highest turbidity value was measured at 40.9 NTUs in the Phase 2 background well MW-9A. Also, turbidity measured at wells MW-1S, MW-2S, and MW-8, was higher compared to the measurements obtained during previous monitoring events. Detected metals in surface water samples were found below their respective 2B Standards established for the analyzed constituents. No obvious trends can be discerned from the surface water data. Metal concentrations in groundwater are often dependent on the turbidity or suspended particulates (from the aquifer formation) retrieved with the groundwater sample, as well as metals naturally occurring in the in-situ soil. The turbidity is a function of the sampling method, well construction, well development, depth to groundwater, and grain size/consolidation of the water-bearing zone. Since 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 concentrations for metals. Therefore, the presence of elevated metal concentrations does not necessarily indicate a groundwater impact. Additionally, certain metals are considered naturally occurring within the in-situ soils and not caused by a release from a landfill. The historical analytical data for metals detected in the groundwater and surface water are presented in Table 4. 5.4 INORGANIC AND FIELD PARAMETERS During the November 2016 monitoring event cyanide was not detected in any of the groundwater samples collected from the assessment monitoring wells. Sulfide was reported at an estimated concentration above the MDL in one Phase 2 assessment well, MW-12S. Historically, sulfide has been reported inconsistently in the sampled assessment wells. The results of the field-measured groundwater quality parameters indicated that the values measured in the collected samples were consistent with historic reported values. The pH readings measured in some of the monitoring wells were outside the 2L Standard pH range specified in 15A NCAC 02L .0202[c] and indicated slightly acidic groundwater. In general, values of pH appeared within already observed ranges at all locations. The turbidity values appeared lower compared to the ones reported during the May 2016 monitoring event in the majority of the collected samples, though higher in those collected from wells MW-1S, MW-2S, and MW-8. C&D Landfill, Water Quality Monitoring Report November 2016 Semiannual Sampling Event 12 The results of the field-measured surface water quality parameters indicated that the values measured in the collected samples are generally consistent with the historic data. The highest turbidity measurement was taken at the SW-3 sampling location. 5.5 CONCLUSIONS The results of the groundwater monitoring event indicated ongoing groundwater impact of benzene at the assessment monitoring wells MW-3S, MW-8, and MW-12S, and vinyl chloride at wells MW-10 and MW-12S. Originally assessment monitoring was triggered by the detection of benzene at wells MW-3S and MW-8. Benzene has been consistently present in well MW-3S above the SWSL and 2L Standard, plus it was reported in well MW-8 for the fourth time and well MW-12S for the fifth time during this monitoring event at a concentration above both the SWSL and 2L Standards. Vinyl chloride was reported above MDL in the groundwater samples collected from well MW-10, for the second time detected and reported at a concentration above the 2L Standard in this well, and well MW-12S, with multiple previous vinyl chloride detections in excess of 2L Standard. Benzene was detected in the assessment well MW-3A during the November 2016 monitoring event at a concentration below respective standards. Vinyl chloride was not reported in this well. Monitoring well MW-12S will continue to be included in the assessment program, in order to observe detections at this well. The groundwater quality impact did not appear severe and may not be attributable to landfill activities. There has been no indication of any risk to the public at this time. The results of the surface water monitoring event indicated conditions consistent with historic field and analytical data, and did not demonstrate an impact to surface water quality due to landfill activities. The next water quality monitoring event at the C&D Landfill is scheduled for May 2017. C&D Landfill, Water Quality Monitoring Report November 2016 Semiannual Sampling Event FIGURES C&D Landfill, Water Quality Monitoring Report November 2016 Semiannual Sampling Event TABLES Table 1 Groundwater Level and Flow Data Construction and Demolition Debris (C&D) Landfill (Permit #74-07), Pitt County, North Carolina November 2016 Well ID TOC Elevation Well Depth Screened Interval Depth To Water Water Level Elevation MW-1S (Well #1)20.91 17.21 3 - 13 7.10 13.81 MW-2S (Well #2)21.44 16.57 3 - 13 9.50 11.94 MW-3S (Well #3)23.02 22.24 8 - 18 11.03 11.99 MW-3A 21.93 23.44 5 -15 10.40 11.53 MW-4 18.42 15.98 3 - 13 6.55 11.87 MW-5 17.90 7.84 12 3 - 18 NS NS MW-6 20.03 16.65 3 - 13 8.32 11.71 MW-7 19.40 16.33 3 - 13 7.45 11.95 MW-8 21.21 20.26 3 - 18 8.43 12.78 MW-9A 20.58 23.17 5 - 20 6.11 14.47 MW-10 16.61 22.73 5 - 20 3.19 13.42 MW-11 14.49 23.84 5 - 20 3.20 11.29 MW-12S 16.18 22.93 5 - 20 4.80 11.38 MW-13 20.69 22.68 5 - 20 8.52 12.17 MW-14S 16.60 23.12 15 - 20 4.51 12.09 Well ID Water Level Elevation Reference Elevation Vertical Change Horizontal Change KnIv (feet/day)(ft/ft) (ft/day) MW-3A 11.53 12 0.47 60 0.805 0.08 0.008 0.079 MW-10 13.42 14 0.58 200 0.116 0.05 0.003 0.007 MW-11 11.29 12 0.71 46 0.009 0.04 0.015 0.003 MW-12S 11.38 12 0.62 140 0.322 0.06 0.004 0.024 NOTES: 1. Depth To Water was measured on November 9 and 10, 2016 for monitoring wells. Monitoring well MW-5 was not sampled due to insufficient water for the samples to be collected. NS = Not Sampled. 2. TOC = top of casing. TOC elevation in feet MSL (mean sea level). 3. Well Depth and Screened Interval in feet below GS. 4. Depth To Water in feet from TOC. 5. Phase I monitoring wells (MW-3A through MW-8) were surveyed (July 2001 and November 2002) by Burgess Land Surveying from Greenville, South Carolina. 6. Phase II monitoring wells (MW-9A through MW-14S) construction data obtained from records furnished by David Garrett, PG, PE. 7. K - hydraulic conductivity. Values obtained from slug testing performed by EFM, Inc. 8. ft = feet. 9. n - effective porosity. Values approximated based on the grain-size data from lab testing of site soils for Phase II Design Hydrogeologic Report. 10. I - hydraulic gradient. Values obtained by dividing water level elevation difference by horizontal distance between closest two contour lines to each well location. 11. v - flow rate; GW flow rate calculated based on the modified Darcy equation: v = (K*I)/n. 12. During May 2014 monitoring event MW-5 well depth was measured at 21.06 feet. Well depth was not measured and groundwater sample was not collected during November 2014 monitoring event due to well damage. Well depth changed for May 2015 monitoring event since MW-5 was reinstalled. (feet) (feet MSL) Page 1 of 1 Ta b l e 2 Su m m a r y o f G r o u n d w a t e r Q u a l i t y D a t a - D e t e c t e d C o n s t i t u e n t s O n l y Co n s t r u c t i o n a n d D e m o l i t i o n D e b r i s ( C & D ) L a n d f i l l ( P e r m i t # 7 4 - 0 7 ) , P i t t C o u n t y , N o r t h C a r o l i n a No v e m b e r 2 0 1 6 MD L M R L SW S L 2 L S t a n d a r d M W - 1 S ( W e l l # 1 ) M W - 2 S ( W e l l # 2 ) M W - 3 S ( W e l l # 3 ) M W - 3 A Me t a l s An t i m o n y 0 . 0 5 3 6 1 0 . 4 5 J 0 . 0 7 J 0 . 1 9 J 0 . 1 1 J (µ g / L ) Ar s e n i c 0 . 6 6 5 1 0 1 0 1 . 9 J 1 . 2 J 17 6.8 J Ba r i u m 0 . 0 2 1 0 0 1 0 0 7 0 0 4 9 . 4 J 5 5 . 2 J 945 198 Be r y l l i u m 0 . 0 4 1 1 4 0 . 0 5 J 0 . 0 4 U 0 . 1 4 J 0 . 0 8 J Ca d m i u m 0 . 0 5 1 1 2 0 . 1 3 J 0 . 1 0 J 0 . 0 5 U 0 . 0 8 J Ch r o m i u m 0 . 0 6 5 1 0 1 0 0 . 5 3 J 0 . 3 7 J 18 4.1 J Co b a l t 0 . 0 4 1 0 1 0 1 0 . 3 1 J 1 . 7 J 3 . 0 J 6 . 2 J Co p p e r 0 . 0 7 1 0 1 0 1 , 0 0 0 1 . 8 J 0 . 3 4 J 1 . 7 J 1 . 1 J Le a d 0 . 0 6 5 1 0 1 5 0 . 6 9 J 0 . 1 3 J 0 . 1 9 J 0 . 2 6 J Me r c u r y 0 . 0 4 0 . 2 0 0 . 2 0 1 0 . 0 4 U N A 4.93 0.04 U Ni c k e l 0 . 0 6 1 0 5 0 1 0 0 3 . 8 J 2 . 6 J 8 . 5 J 5 . 5 J Se l e n i u m 0 . 5 4 / 0 . 6 2 1 0 1 0 2 0 1 . 6 J 2 . 6 J 0 . 6 2 U 9 . 7 J Th a l l i u m 0 . 0 5 1 5 . 5 0 . 2 0 . 0 5 U 0 . 1 0 J 0 . 0 5 U 0 . 0 5 U Va n a d i u m 0 . 3 6 1 0 2 5 0 . 3 2 . 0 J 0 . 3 9 J 3 . 3 J 1 . 9 J Zi n c 1 . 6 1 1 0 1 0 1 , 0 0 0 1 . 8 J 1 . 6 1 U 2 . 5 J 2 . 6 J VO C s Ac e t o n e 9 . 0 6 1 0 0 1 0 0 6 , 0 0 0 9 . 0 6 U 9 . 0 6 U 9 . 6 0 J 1 2 . 0 0 J (µ g / L ) Be n z e n e 0 . 2 4 1 . 0 1 1 0 . 2 4 U 0 . 2 4 U 1.20 0.80 J 1, 2 - D i c h l o r o e t h a n e 0 . 2 1 / 0 . 2 7 1 1 0 . 4 0 . 2 1 U 0 . 2 7 U 0 . 3 0 J 0 . 2 1 U ci s - 1 , 2 - D i c h l o r o e t h e n e 0 . 2 5 5 . 0 5 7 0 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U Et h y l b e n z e n e 0 . 2 1 1 1 6 0 0 0 . 2 1 U 0 . 2 1 U 0 . 3 0 J 0 . 2 1 U Na p h t h a l e n e 0 . 4 7 1 0 1 0 6 0 . 4 7 U N A 0 . 8 0 J 0 . 4 7 U Te t r a h y d r o f u r a n 0 . 3 9 1 N E N E 0 . 3 9 U 0 . 3 9 U 1 0 . 6 0 6 . 1 0 To l u e n e 0 . 2 3 1 . 0 1 6 0 0 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U Vi n y l c h l o r i d e 0 . 6 3 1 . 0 1 0 . 0 3 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U Xy l e n e s 0 . 6 8 5 5 5 0 0 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U SV O C s Ac e n a p h t h e n e 2. 6 6 1 0 1 0 8 0 2 . 6 6 U N A 10.24 2.66 U (µ g / L ) In o r g a n i c s Su l f i d e 1 0 0 1 , 0 0 0 1 , 0 0 0 N E 1 0 0 U N A 1 0 0 U 1 0 0 U (µ g / L ) Fi e l d pH ( S . U . ) N A N A N E 6 . 5 - 8 . 5 6 . 6 6. 4 6.8 6 . 8 Pa r a m e t e r s Co n d u c t i v i t y a t 2 5 °C ( µ S / c m ) 1 . 0 N A N E N E 7 3 0 6 4 9 3 , 1 4 0 1 , 6 5 3 Tu r b i d i t y ( N T U ) 1 . 0 N A N E N E 1 3 . 1 3 . 9 0 6 . 3 8 1 2 . 9 Co m p l i a n c e L i m i t Pa r a m e t e r Ph a s e I M o n i t o r i n g W e l l I D a n d A n a l y t i c a l R e s u l t s ( µ g / L ) Page 1 of 4 Ta b l e 2 Su m m a r y o f G r o u n d w a t e r Q u a l i t y D a t a - D e t e c t e d C o n s t i t u e n t s O n l y Co n s t r u c t i o n a n d D e m o l i t i o n D e b r i s ( C & D ) L a n d f i l l ( P e r m i t # 7 4 - 0 7 ) , P i t t C o u n t y , N o r t h C a r o l i n a No v e m b e r 2 0 1 6 MD L M R L SW S L 2 L S t a n d a r d Me t a l s An t i m o n y 0 . 0 5 3 6 1 (µ g / L ) Ar s e n i c 0 . 6 6 5 1 0 1 0 Ba r i u m 0 . 0 2 1 0 0 1 0 0 7 0 0 Be r y l l i u m 0 . 0 4 1 1 4 Ca d m i u m 0 . 0 5 1 1 2 Ch r o m i u m 0 . 0 6 5 1 0 1 0 Co b a l t 0 . 0 4 1 0 1 0 1 Co p p e r 0 . 0 7 1 0 1 0 1 , 0 0 0 Le a d 0 . 0 6 5 1 0 1 5 Me r c u r y 0 . 0 4 0 . 2 0 0 . 2 0 1 Ni c k e l 0 . 0 6 1 0 5 0 1 0 0 Se l e n i u m 0 . 5 4 / 0 . 6 2 1 0 1 0 2 0 Th a l l i u m 0 . 0 5 1 5 . 5 0 . 2 Va n a d i u m 0 . 3 6 1 0 2 5 0 . 3 Zi n c 1 . 6 1 1 0 1 0 1 , 0 0 0 VO C s Ac e t o n e 9 . 0 6 1 0 0 1 0 0 6 , 0 0 0 (µ g / L ) Be n z e n e 0 . 2 4 1 . 0 1 1 1, 2 - D i c h l o r o e t h a n e 0 . 2 1 / 0 . 2 7 1 1 0 . 4 ci s - 1 , 2 - D i c h l o r o e t h e n e 0 . 2 5 5 . 0 5 7 0 Et h y l b e n z e n e 0 . 2 1 1 1 6 0 0 Na p h t h a l e n e 0 . 4 7 1 0 1 0 6 Te t r a h y d r o f u r a n 0 . 3 9 1 N E N E To l u e n e 0 . 2 3 1 . 0 1 6 0 0 Vi n y l c h l o r i d e 0 . 6 3 1 . 0 1 0 . 0 3 Xy l e n e s 0 . 6 8 5 5 5 0 0 SV O C s Ac e n a p h t h e n e 2. 6 6 1 0 1 0 8 0 (µ g / L ) In o r g a n i c s Su l f i d e 1 0 0 1 , 0 0 0 1 , 0 0 0 N E (µ g / L ) Fi e l d pH ( S . U . ) N A N A N E 6 . 5 - 8 . 5 Pa r a m e t e r s Co n d u c t i v i t y a t 2 5 °C ( µ S / c m ) 1 . 0 N A N E N E Tu r b i d i t y ( N T U ) 1 . 0 N A N E N E Co m p l i a n c e L i m i t Pa r a m e t e r MW - 4 M W - 6 M W - 7 M W - 8 0. 0 5 U 0 . 0 8 J 0 . 1 2 J 0 . 2 4 J 0. 9 1 J 13 5. 1 J 21 12 3 3 3 6 4 1 1 2 8 5 0. 1 5 J 0 . 1 3 J 0 . 1 0 J 0 . 2 4 J 0. 0 9 J 0 . 1 8 J 0 . 3 0 J 0 . 2 0 J 2. 0 J 4 . 8 J 8 . 8 J 9 . 3 J 0. 3 3 J 2 . 5 J 3 . 3 J 9 . 8 J 0. 3 6 J 1 . 0 J 4 . 1 J 1 . 8 J 0. 4 5 J 0 . 6 6 J 0 . 2 4 J 0 . 6 9 J NA N A N A 0 . 0 4 U 2. 4 J 3 . 6 J 5 . 4 J 1 0 . 4 J 1. 7 J 6 . 3 J 0 . 6 2 U 0 . 6 2 U 0. 0 5 U 0 . 0 5 U 0 . 0 5 U 0 . 0 5 U 2. 7 J 5 . 6 J 1 . 6 J 3 . 0 J 1. 8 J 1 . 9 J 2 . 7 J 3 . 5 J 9. 0 6 U 9 . 0 6 U 9 . 0 6 U 1 7 . 2 0 J 0. 2 4 U 0 . 2 4 U 0 . 4 0 J 1.50 0. 2 7 U 0 . 2 7 U 0 . 2 7 U 0 . 2 1 U 0. 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0. 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U NA N A N A 0 . 4 7 U 0. 5 0 J 5 . 6 0 1 6 . 3 0 1 1 . 7 0 0. 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0. 6 3 U 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U 0. 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U NA N A N A 2 . 6 6 U NA N A N A 1 0 0 U 6. 5 6. 8 6 . 7 6 . 7 57 9 1 , 2 4 6 1 , 9 6 1 2 , 5 5 0 3. 1 5 2 3 . 4 4 . 4 1 2 2 . 2 Ph a s e I M o n i t o r i n g W e l l I D a n d A n a l y t i c a l R e s u l t s ( µ g / L ) Page 2 of 4 Ta b l e 2 Su m m a r y o f G r o u n d w a t e r Q u a l i t y D a t a - D e t e c t e d C o n s t i t u e n t s O n l y Co n s t r u c t i o n a n d D e m o l i t i o n D e b r i s ( C & D ) L a n d f i l l ( P e r m i t # 7 4 - 0 7 ) , P i t t C o u n t y , N o r t h C a r o l i n a No v e m b e r 2 0 1 6 MD L M R L SW S L 2 L S t a n d a r d Me t a l s An t i m o n y 0 . 0 5 3 6 1 (µ g / L ) Ar s e n i c 0 . 6 6 5 1 0 1 0 Ba r i u m 0 . 0 2 1 0 0 1 0 0 7 0 0 Be r y l l i u m 0 . 0 4 1 1 4 Ca d m i u m 0 . 0 5 1 1 2 Ch r o m i u m 0 . 0 6 5 1 0 1 0 Co b a l t 0 . 0 4 1 0 1 0 1 Co p p e r 0 . 0 7 1 0 1 0 1 , 0 0 0 Le a d 0 . 0 6 5 1 0 1 5 Me r c u r y 0 . 0 4 0 . 2 0 0 . 2 0 1 Ni c k e l 0 . 0 6 1 0 5 0 1 0 0 Se l e n i u m 0 . 5 4 / 0 . 6 2 1 0 1 0 2 0 Th a l l i u m 0 . 0 5 1 5 . 5 0 . 2 Va n a d i u m 0 . 3 6 1 0 2 5 0 . 3 Zi n c 1 . 6 1 1 0 1 0 1 , 0 0 0 VO C s Ac e t o n e 9 . 0 6 1 0 0 1 0 0 6 , 0 0 0 (µ g / L ) Be n z e n e 0 . 2 4 1 . 0 1 1 1, 2 - D i c h l o r o e t h a n e 0 . 2 1 / 0 . 2 7 1 1 0 . 4 ci s - 1 , 2 - D i c h l o r o e t h e n e 0 . 2 5 5 . 0 5 7 0 Et h y l b e n z e n e 0 . 2 1 1 1 6 0 0 Na p h t h a l e n e 0 . 4 7 1 0 1 0 6 Te t r a h y d r o f u r a n 0 . 3 9 1 N E N E To l u e n e 0 . 2 3 1 . 0 1 6 0 0 Vi n y l c h l o r i d e 0 . 6 3 1 . 0 1 0 . 0 3 Xy l e n e s 0 . 6 8 5 5 5 0 0 SV O C s Ac e n a p h t h e n e 2. 6 6 1 0 1 0 8 0 (µ g / L ) In o r g a n i c s Su l f i d e 1 0 0 1 , 0 0 0 1 , 0 0 0 N E (µ g / L ) Fi e l d pH ( S . U . ) N A N A N E 6 . 5 - 8 . 5 Pa r a m e t e r s Co n d u c t i v i t y a t 2 5 °C ( µ S / c m ) 1 . 0 N A N E N E Tu r b i d i t y ( N T U ) 1 . 0 N A N E N E Co m p l i a n c e L i m i t Pa r a m e t e r MW - 9 A M W - 1 0 M W - 1 1 M W - 1 2 S M W - 1 3 M W - 1 4 S 0. 0 5 U 0 . 2 1 J 0 . 0 5 U 0 . 2 8 J 0 . 1 1 J 0 . 0 8 J 0. 6 6 U 7 J 1 . 3 J 42 0.85 J 2 . 1 J 45 . 3 J 26 0 31 . 3 J 65 4 53.1 J 7 3 . 1 J 0. 0 4 U 0 . 1 0 J 0 . 1 2 J 0 . 1 0 J 0 . 0 4 U 0 . 0 6 J 0. 1 3 J 0 . 0 9 J 0 . 5 0 J 0 . 1 5 J 0 . 0 5 J 0 . 2 9 J 0. 0 6 U 11 0. 4 3 J 28 0.26 J 1 . 2 J 0. 1 1 3 J 1 . 0 J 0 . 7 0 J 2 . 0 J 0 . 9 4 J 1 . 3 J 0. 1 6 J 0 . 7 0 J 0 . 3 5 J 1 . 5 J 0 . 5 0 J 0 . 6 2 J 0. 0 6 J 0 . 0 6 U 0 . 2 4 J 0 . 0 6 U 0 . 0 8 J 1 . 0 J NA N A N A 0 . 0 4 U N A N A 1. 8 J 6 . 7 J 5 . 2 J 8 . 9 J 3 . 4 J 3 . 0 J 0. 6 2 U 9 . 4 J 1 . 4 J 0 . 6 2 U 1 . 1 J 0 . 6 9 J 0. 0 5 U 0 . 0 5 U 0 . 0 5 U 0 . 0 5 U 0 . 0 5 U 0 . 0 5 U 0. 3 6 U 8 . 5 J 0 . 5 9 J 1 6 . 4 J 1 . 5 J 2 . 6 J 1. 9 J 1 . 6 1 U 2 . 4 J 2 . 0 J 1 . 6 1 U 6 . 8 J 9. 0 6 U 9 . 0 6 U 9 . 0 6 U 1 2 . 3 0 J 9 . 0 6 U 9 . 0 6 U 0. 2 4 U 0 . 6 0 J 0 . 2 4 U 1. 9 0 0.24 U 0 . 2 4 U 0. 2 7 U 0 . 2 7 U 0 . 2 7 U 0 . 2 1 U 0 . 2 7 U 0 . 2 7 U 0. 2 5 U 0 . 4 0 J 0 . 3 0 J 1 . 6 0 J 0 . 2 5 U 0 . 2 5 U 0. 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U NA N A N A 0 . 6 0 J N A N A 0. 3 9 U 8 . 8 0 0 . 3 9 U 4 9 . 0 0 0 . 3 9 U 0 . 6 0 J 0. 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 5 0 J 0 . 2 3 U 0 . 2 3 U 0. 6 3 U 1. 7 0 0. 6 3 U 4. 3 0 0.63 U 0 . 6 3 U 0. 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 7 0 J 0 . 6 8 U 0 . 6 8 U NA N A N A 2 . 6 6 U N A N A NA N A N A 2 4 0 J N A N A 7. 1 6. 3 6 . 5 6. 6 6.3 6 . 4 40 4 1 , 5 1 0 9 5 7 2 , 7 8 0 4 9 6 3 5 2 40 . 9 1 . 1 0 7 . 9 2 < 1 1 . 7 1 1 8 . 6 Ph a s e I I M o n i t o r i n g W e l l I D a n d A n a l y t i c a l R e s u l t s ( µ g / L ) Page 3 of 4 Ta b l e 2 Su m m a r y o f G r o u n d w a t e r Q u a l i t y D a t a - D e t e c t e d C o n s t i t u e n t s O n l y Co n s t r u c t i o n a n d D e m o l i t i o n D e b r i s ( C & D ) L a n d f i l l ( P e r m i t # 7 4 - 0 7 ) , P i t t C o u n t y , N o r t h C a r o l i n a No v e m b e r 2 0 1 6 NO T E S : 1. T a b l e 2 l i s t s a l l d e t e c t e d c o m p o u n d s i n t h e g r o u n d w a t e r . P l e a s e r e f e r t o E n v i r o n m e n t 1 , I n c o r p o r a t e d l a b o r a t o r y a n a l y s i s r e po r t f o r f u r t h e r d e t a i l s . 2. G r o u n d w a t e r s a m p l e s w e r e c o l l e c t e d o n N o v e m b e r 9 a n d 1 0 , 2 0 1 6 . M o n i t o r i n g w e l l M W - 5 w a s n o t s a m p l e d d u e t o i n s u f f i c i e n t w a te r f o r t h e s a m p l e t o b e c o l l e c t e d . 3. P h a s e 1 m o n i t o r i n g w e l l s a r e a s f o l l o w s : M W - 1 S ( b a c k g r o u n d w e l l ) , M W - 2 S , M W - 1 D , M W - 2 D , M W - 3 D , M W - 4 , M W - 5 , M W - 6 , M W - 7 ( d e t e c ti o n m o n i t o r i n g p r o g r a m ) a n d M W - 3 S , M W - 3 A a n d M W - 8 ( d e t e c t i o n a n d a s s e s s m e n t m o n i t o r i n g p r o g r a m ) . 4. P h a s e 2 m o n i t o r i n g w e l l s a r e a s f o l l o w s : M W - 9 A ( b a c k g r o u n d w e l l ) , M W - 1 0 , M W - 1 1 , M W - 1 2 S , M W - 1 3 , M W - 1 4 S , a n d M W - 1 4 D ( d e t e c t i o n m o n i t o r i n g p r o g r a m ) . 5. M D L = M e t h o d D e t e c t i o n L i m i t . 6. M R L = M e t h o d R e p o r t i n g L i m i t . 7. C o m p l i a n c e L i m i t = S W S L o r 2 L S t a n d a r d . 8. S W S L = S o l i d W a s t e S e c t i o n L i m i t ( J u n e 1 3 , 2 0 1 1 ) . 9. 2 L S t a n d a r d = N C A C T i t l e 1 5 A S u b c h a p t e r 2 L C l a s s i f i c a t i o n s a n d W a t e r Q u a l i t y S t a n d a r d s A p p l i c a b l e t o t h e G W s o f N o r t h C a r o l in a ( A p r i l 1 , 2 0 1 3 ) . 10 . J i n d i c a t e s t h e d e t e c t e d r e s u l t i s b e l o w t h e S W S L o r b e t w e e n M D L a n d S W S L . 11 . U i n d i c a t e s c o n c e n t r a t i o n b e l o w M D L a n d M R L ; n o n - d e t e c t . 12 . µ g / L = m i c r o g r a m s p e r l i t e r . 13 . N D = N o t D e t e c t e d . N E = N o t E s t a b l i s h e d . N A = N o t A n a l y z e d . 14 . Bo l d f o n t i n d i c a t e s a n a l y t e d e t e c t i o n a b o v e S W S L . 15 . Sh a d e d f i e l d de n o t e s r e s u l t t h a t w a s a t o r a b o v e t h e 2 L S t a n d a r d . 16 . S . U . = S t a n d a r d U n i t s . 17 . µ S / c m = m i c r o s i e m e n s p e r c e n t i m e t e r . 18 . N T U = N e p h e l o m e t r i c T u r b i d i t y U n i t s . Page 4 of 4 Ta b l e 3 Su m m a r y o f S u r f a c e W a t e r Q u a l i t y D a t a - D e t e c t e d C o n s t i t u e n t s O n l y Co n s t r u c t i o n a n d D e m o l i t i o n D e b r i s ( C & D ) L a n d f i l l ( P e r m i t # 7 4 - 0 7 ) , P i t t C o u n t y , N o r t h C a r o l i n a No v e m b e r 2 0 1 6 MD L M R L SW S L 2 B S t a n d a r d S W - 1 S W - 2 S W - 3 S W - 4 Me t a l s An t i m o n y 0 . 0 5 3 6 6 4 0 0 . 0 5 U 0 . 0 5 U 0 . 0 6 J N S (µ g / L ) Ar s e n i c 0 . 6 6 5 1 0 1 0 1 . 2 J 0 . 9 6 J 0 . 7 2 J N S Ba r i u m 0 . 0 2 1 0 0 1 0 0 2 0 0 , 0 0 0 5 0 . 0 J 6 5 . 8 J 9 9 . 1 J N S Be r y l l i u m 0 . 0 4 1 . 0 1 6 . 5 0 . 0 5 J 0 . 0 4 U 0 . 0 9 J N S Ch r o m i u m 0 . 0 6 5 1 0 5 0 0 . 9 5 J 1 . 0 J 0 . 6 1 J N S Co b a l t 0 . 0 4 1 0 1 0 4 0 . 3 4 J 0 . 3 2 J 0 . 4 7 J N S Co p p e r 0 . 0 7 1 0 1 0 7 ( A L ) 0 . 4 8 J 0 . 3 4 J 0 . 3 9 J N S Le a d 0 . 0 6 5 1 0 2 5 0 . 3 2 J 0 . 4 0 J 0 . 4 2 J N S Ni c k e l 0 . 0 6 1 0 5 0 8 8 0 . 7 2 J 1 . 0 J 0 . 6 4 J N S Se l e n i u m 0 . 5 4 1 0 1 0 5 0 . 5 4 U 0 . 7 6 J 0 . 5 4 U N S Th a l l i u m 0 . 0 5 1 5 . 5 0 . 4 7 0 . 0 5 U 0 . 0 5 U 0 . 0 5 J N S Va n a d i u m 0 . 3 6 1 0 2 5 N E 0 . 5 7 J 0 . 5 4 J 1 . 0 J N S Zi n c 1 . 6 1 1 0 1 0 5 0 2 . 4 J 2 . 9 J 5 . 0 J N S VO C s 2- B u t a n o n e 2 . 2 1 1 0 0 1 0 0 7 5 0 , 0 0 0 3 . 2 0 J 2 . 2 1 U 2 . 2 1 U N S (µ g / L ) Te t r a h y d r o f u r a n 0. 3 9 1 1 N E 0 . 7 0 J 0 . 9 0 J 0 . 3 9 U N S Fi e l d pH ( S . U . ) N A N A N E 6 . 0 - 9 . 0 7 . 1 7 . 1 7 . 1 N S Pa r a m e t e r s Co n d u c t i v i t y a t 2 5 °C ( µ S / c m ) N A N A N E N E 2 3 5 3 1 8 1 8 9 N S Tu r b i d i t y ( N T U ) N A N A N E 5 0 6 . 0 3 4 . 3 2 1 8 . 3 N S NO T E S : Ta b l e 3 l i s t s a l l d e t e c t e d c o m p o u n d s i n t h e s u r f a c e w a t e r . P l e a s e r e f e r t o E n v i r o n m e n t 1 , I n c o r p o r a t e d l a b o r a t o r y a n a l y s i s r e p o rt f o r f u r t h e r d e t a i l s . Su r f a c e w a t e r s a m p l e s w e r e c o l l e c t e d o n N o v e m b e r 1 0 , 2 0 1 6 . MD L = M e t h o d D e t e c t i o n L i m i t . MR L = M e t h o d R e p o r t i n g L i m i t . Co m p l i a n c e L i m i t = S W S L o r 2 B S t a n d a r d . SW S L = S o l i d W a s t e S e c t i o n L i m i t ( J u n e 1 3 , 2 0 1 1 ) . 2B S t a n d a r d = S t a n d a r d s , c r i t e r i a , o r t o x i c c o n c e n t r a t i o n s e i t h e r a d o p t e d p e r 1 5 A N C A C 2 B o r N a t i o n a l C r i t e r i a p e r E P A ( C u r r e n t a s o f 5 / 1 5 / 2 0 1 3 ) . (A L ) = A c t i o n L e v e l S t a n d a r d ( S e e 2 B . 0 2 1 1 f o r a d d i t i o n a l i n f o r m a t i o n ) . J i n d i c a t e s t h e d e t e c t e d r e s u l t i s b e l o w t h e S W S L . U i n d i c a t e s c o n c e n t r a t i o n b e l o w M D L a n d M R L ; n o n - d e t e c t . µg / L = m i c r o g r a m s p e r l i t e r . ND = N o t D e t e c t e d . N E = N o t E s t a b l i s h e d . N A = N o t A p p l i c a b l e . N S = N o t S a m p l e d . Bo l d f o n t i n d i c a t e s a n a l y t e d e t e c t i o n a b o v e M D L . S h a d e d f i e l d de n o t e s r e s u l t t h a t w a s a t o r a b o v e t h e C o m p l i a n c e L i m i t . S.U . = S t a n d a r d U n i t s . µS / c m = m i c r o s i e m e n s p e r c e n t i m e t e r . NT U = N e p h e l o m e t r i c T u r b i d i t y U n i t s . Co m p l i a n c e L i m i t S a m p l e L o c a t i o n s a n d A n a l y t i c a l R e s u l t s ( µ g / L ) Pa r a m e t e r Page 1 of 1 Ta b l e 4 Hi s t o r i c a l G r o u n d w a t e r a n d S u r f a c e W a t e r Q u a l i t y D a t a Co n s t r u c t i o n a n d D e m o l i t i o n D e b r i s ( C & D ) L a n d f i l l ( P e r m i t # 7 4 - 0 7 ) , P i t t C o u n t y , N o r t h C a r o l i n a Pa r a m e t e r :An t i m o n y C A S N o . 7 4 4 0 - 3 6 - 0 Sa m p l e M D L A n a l y t i c a l R e s u l t s ( µ g / L ) Da t e S W S L 2 L S t a n d a r d 2 B S t a n d a r d MW - 1 S M W - 2 S M W - 3 S M W - 3 A M W - 4 M W - 5 M W - 6 M W - 7 M W - 8 M W - 9 A M W - 1 0 M W - 1 1 M W - 1 2 S M W - 1 3 M W - 1 4 S S W - 1 S W - 2 S W - 3 S W - 4 Ja n - 2 0 1 0 6 1 6 4 0 0 . 0 6 N D 0.1 J ND N D N D 0.5 ND N D N D 0.4 J ND N D N D N D 0.2 J 0 . 1 J 0 . 1 J 0 . 6 J 0 . 2 J Ma y - 2 0 1 0 0 . 2 2 N D 0.7 J ND N D N D N D N D N D N D N D N D 0.7 J ND N D N D N D N D N D N D No v - 2 0 1 0 0 . 2 2 N D N D N D N D N D 0.6 J ND N D N D N D N D N D 0.8 J ND N D N D N D N D N D Ma y - 2 0 1 1 0 . 1 4 0.1 9 J ND N D N D N D 0.4 J ND N D N D N D N D N D 0. 4 7 J ND N D N D 0.2 J ND 0.29 J No v - 2 0 1 1 0 . 1 4 N D N D N D N D N D 0.5 5 J ND N D N D N D N D N D 0. 5 1 J ND N D N D N D N D N D Ma y - 2 0 1 2 0 . 0 2 0.1 2 J 0 . 1 2 J 0 . 2 7 J 0 . 1 0 J 0 . 1 5 J 0 . 3 6 J 0 . 1 7 J 0 . 1 6 J 0 . 1 3 J 0 . 0 3 J 0 . 0 4 J 0 . 0 6 J 0 . 2 4 J 0 . 1 0 J 0 . 3 4 J 0 . 1 3 J 0 . 0 9 J 0 . 0 5 J 0 . 0 4 J No v - 2 0 1 2 0 . 0 2 0.1 4 J 0 . 2 8 J 0 . 1 6 J 0 . 5 0 J 0 . 1 4 J 0 . 5 J 0 . 0 7 J 0 . 1 5 J 0 . 1 6 J 0 . 0 6 J 0 . 0 9 J 0 . 0 8 J 0 . 3 J 0 . 1 0 J 0 . 1 4 J ND 0.10 J ND N D Ma y - 2 0 1 3 0 . 0 2 0.0 7 J 0 . 0 9 J ND 0. 0 7 J ND 0. 3 4 J 0 . 0 7 J 0 . 3 1 J 0 . 1 4 J 0 . 0 4 J 0 . 0 4 J 0 . 0 5 J 0 . 1 8 J 0 . 0 3 J 0 . 1 5 J 0 . 1 4 J 0 . 0 4 J 0 . 0 3 J DRY Ma y - 2 0 1 4 0 . 0 2 0. 1 9 J 0.0 2 U 0 . 0 2 U 0. 0 3 J 0.0 2 U 0. 3 4 J 0.0 2 U 0. 1 2 J 0 . 0 7 J 0.0 2 U 0 . 0 2 U 0 . 0 2 U 0.1 0 J 0.0 2 U 0.17 J 0.02 U 0 . 0 2 U 0 . 0 2 U D R Y No v - 2 0 1 4 0 . 1 2 16 0 . 1 6 J 0 . 1 4 J 0.1 2 U 0. 7 8 J NS 0. 1 8 J 0 . 2 2 J 0 . 2 0 J 0.1 2 U 0. 2 4 J 0 . 2 4 J 0 . 3 4 J 0.1 2 U 0.21 J 0.12 U 0 . 1 2 U 0.46 J DRY Ma y - 2 0 1 5 0.0 2 0.2 6 J 0 . 0 3 J 0 . 0 6 J 0. 0 2 U 0.2 3 J 0 . 5 2 J 0 . 0 8 J 0 . 2 2 J 0 . 1 1 J 0. 0 2 U 0 . 0 2 U 0 . 0 2 U 0.7 0 J 0. 0 2 U 0.18 J 0 . 6 5 J 0 . 1 8 J 0 . 0 6 J 0 . 0 4 J No v - 2 0 1 5 0.0 2 0.9 5 J 0 . 1 5 J 0 . 1 6 J 0 . 2 4 J 0 . 1 9 J 1 . 4 J 0 . 2 4 J 0 . 2 7 J 0 . 3 2 J 0 . 2 0 J 0 . 1 7 J 0 . 1 2 J 0 . 1 4 J 0 . 1 6 J 0 . 1 2 J 0 . 1 0 J 0 . 0 9 J 0 . 0 6 J 0 . 8 6 J Ma y - 2 0 1 6 0.0 5 0.5 6 J 0. 0 5 U 0.1 0 J 0. 0 5 U 0 . 0 5 U N S 0.1 2 J 0 . 1 3 J 0 . 1 2 J 0. 0 5 U 0.2 7 J 0. 0 5 U 0.2 6 J 0 . 1 2 J 0 . 1 2 J 0.05 U 0.09 J 0.05 U 0 . 0 5 U No v - 2 0 1 6 0 . 0 5 0. 4 5 J 0 . 0 7 J 0 . 1 9 J 0 . 1 1 J 0.0 5 U N S 0. 0 8 J 0 . 1 2 J 0 . 2 4 J 0.0 5 U 0. 2 1 J 0.0 5 U 0. 2 8 J 0 . 1 1 J 0 . 0 8 J 0.05 U 0 . 0 5 U 0.06 J NS Pa r a m e t e r :Ar s e n i c C A S N o . 7 4 4 0 - 3 8 - 2 Sa m p l e M D L A n a l y t i c a l R e s u l t s ( µ g / L ) Da t e S W S L 2 L S t a n d a r d 2 B S t a n d a r d MW - 1 S M W - 2 S M W - 3 S M W - 3 A M W - 4 M W - 5 M W - 6 M W - 7 M W - 8 M W - 9 A M W - 1 0 M W - 1 1 M W - 1 2 S M W - 1 3 M W - 1 4 S S W - 1 S W - 2 S W - 3 S W - 4 Ja n - 2 0 1 0 1 0 1 0 1 0 0 . 1 7 2.1 J 0 . 8 J 6 . 8 J 2 . 6 J 2 . 8 J 5 . 8 J 6 . 4 J 0 . 5 J 4 . 0 J 1 . 3 J 0 . 5 J ND N D 2.4 J 1 . 3 J 3 . 9 J 0 . 3 J ND 0.2 J Ma y - 2 0 1 0 0 . 0 4 0.7 J 1 . 7 J 9 . 2 J 1 . 0 J 2 . 6 J 3 . 9 J 6 . 1 J 4 . 5 J 7 . 5 J 0 . 3 J 0 . 5 J ND 0.4 J 1 . 4 J ND 0.9 J 1 . 3 J 0 . 4 J 0 . 6 J No v - 2 0 1 0 0 . 0 4 1.9 J 5 . 6 J ND 5.4 J 2 . 3 J ND 4.8 J 0 . 9 J 4 . 0 J 0 . 6 J 1 . 1 J 0 . 6 J 5 . 3 J 1 . 8 J 1 . 6 J 2 J 1 . 1 J 0 . 6 J 0 . 5 J Ma y - 2 0 1 1 0 . 1 0 0. 3 6 J 3 . 1 J 3 . 8 J 0 . 9 3 J 1 . 6 J 6 . 4 J 2 . 2 J 1 . 5 J 3 . 2 J 0 . 6 0 J 0 . 5 2 J ND 5.9 J 0 . 2 9 J 1 . 5 J 3 . 1 J 0 . 8 2 J 1 . 1 J 1 . 3 J No v - 2 0 1 1 0 . 1 0 1.1 J 0 . 9 J 4 . 9 J 2 . 2 J 1 . 9 J 3 . 3 J 2 . 4 J 0 . 8 1 J 2 . 7 J 0 . 5 0 J 2 . 5 J 0 . 2 3 J 1 1 0 . 5 2 J 1 . 7 J 2 . 0 J 2 . 5 J 0 . 9 9 J 0 . 5 1 J Ma y - 2 0 1 2 0 . 1 3 0. 8 8 J 6 . 1 J 4 . 2 J 2 . 8 J 2 . 9 J 6 . 8 J 2 . 2 J 2 . 3 J 5 . 8 J 0 . 5 0 J 1 . 1 J 0 . 4 1 J 2 4 0 . 6 2 J 4 . 0 J 4 . 7 J 2 . 0 J 1 . 0 J 0 . 9 2 J No v - 2 0 1 2 0 . 1 3 0. 7 4 J 9 J 5 . 7 J 5 . 5 J 0 . 9 J 1 . 9 J 2 . 4 J 0 . 7 2 J 8 . 0 J 0 . 1 7 J 1 . 5 J 0 . 8 2 J 1 5 0 . 7 6 J 3 . 7 J 0 . 9 3 J 0 . 6 8 J 0 . 5 0 J 0 . 8 2 J Ma y - 2 0 1 3 0 . 0 5 0. 0 2 J 5 . 3 J 3 . 7 J 2 . 4 J 0 . 8 3 J 2 . 4 J 2 . 4 J 5 . 0 J 6 . 2 J 0 . 1 5 J 0 . 7 4 J 0 . 5 8 J 1 9 0 . 3 4 J 5 . 0 J 1 . 2 J 0 . 8 1 J 0 . 3 5 J DRY Ma y - 2 0 1 4 0 . 0 5 0 . 0 5 U 0. 1 2 J 3 . 8 J 0.0 5 U 0 . 0 5 U 0. 2 8 J 0.0 5 U 2.1 J 5 . 8 J 0.0 5 U 0 . 0 5 U 0 . 0 5 U 11 0.0 5 U 0.30 J 0 . 6 7 J 1 . 4 J 0 . 2 6 J DRY No v - 2 0 1 4 0 . 1 0 0. 8 6 J 7 J 9 J 4 . 5 J 0 . 6 6 J NS 3.4 J 4 . 1 J 1 0 0.1 0 U 0. 8 4 J 0 . 1 7 J 3 6 0 . 3 7 J 6 . 9 J 0 . 7 8 J 0 . 4 7 J 0 . 3 3 J DRY Ma y - 2 0 1 5 0 . 1 4 / 0 . 5 0 2.2 J 0 . 1 5 J 6 . 1 J 0.5 0 U 1.7 J 1 1 1 . 3 J 5 J 4 . 3 J 0.1 4 U 0. 7 3 J 0 . 4 6 J 1 5 0 . 4 1 J 1 . 2 J 0 . 8 2 J 0 . 5 6 J 0 . 7 1 J 0 . 8 0 J No v - 2 0 1 5 0 . 1 4 / 0 . 5 0 1.0 J 1 . 2 J 1 1 8 J 3 . 6 J 3 . 5 J 3 . 6 J 2 . 9 J 2 . 1 J 0.1 4 U 1.2 J 0 . 2 4 J 2 . 8 J 0 . 2 6 J 2 . 4 J 0 . 7 1 J 0 . 5 5 J 0 . 5 2 J 0 . 3 9 J Ma y - 2 0 1 6 0. 4 8 / 0 . 6 6 2.7 J 0.6 6 U 10 1 . 5 J 2 . 1 J NS 5.2 J 5 . 6 J 1 1 0.6 6 U 10 0.6 6 U 38 0.6 6 U 0.84 J 0 . 9 2 J 0 . 8 9 J 0 . 8 8 J 0.66 U No v - 2 0 1 6 0 . 6 6 1.9 J 1 . 2 J 1 7 6 . 8 J 0 . 9 1 J NS 13 5 . 1 J 2 1 0.6 6 U 7 J 1 . 3 J 4 2 0 . 8 5 J 2 . 1 J 1 . 2 J 0 . 9 6 J 0 . 7 2 J NS Co m p l i a n c e L i m i t ( µ g / L ) Co m p l i a n c e L i m i t ( µ g / L ) Page 1 of 17 Ta b l e 4 Hi s t o r i c a l G r o u n d w a t e r a n d S u r f a c e W a t e r Q u a l i t y D a t a Co n s t r u c t i o n a n d D e m o l i t i o n D e b r i s ( C & D ) L a n d f i l l ( P e r m i t # 7 4 - 0 7 ) , P i t t C o u n t y , N o r t h C a r o l i n a Pa r a m e t e r :Ba r i u m C A S N o . 7 4 4 0 - 3 9 - 3 Sa m p l e M D L A n a l y t i c a l R e s u l t s ( µ g / L ) Da t e S W S L 2 L S t a n d a r d 2 B S t a n d a r d MW - 1 S M W - 2 S M W - 3 S M W - 3 A M W - 4 M W - 5 M W - 6 M W - 7 M W - 8 M W - 9 A M W - 1 0 M W - 1 1 M W - 1 2 S M W - 1 3 M W - 1 4 S S W - 1 S W - 2 S W - 3 S W - 4 Ja n - 2 0 1 0 1 0 0 7 0 0 2 0 0 , 0 0 0 0 . 0 4 77 . 4 J 1 5 . 4 J 4 9 2 8 4 . 2 J 1 6 5 8 3 . 8 J 1 3 7 2 9 . 1 J 1 6 9 5 5 . 4 J 1 1 3 2 3 . 4 J 9 8 . 5 J 8 2 . 8 J 1 0 0 8 9 . 2 J 7 1 . 3 J 7 6 . 1 J 7 0 . 9 J Ma y - 2 0 1 0 0 . 0 3 23 . 5 J 4 7 . 5 J 5 2 7 4 2 . 7 J 2 0 2 9 2 . 1 J 2 1 5 2 6 6 1 4 0 2 9 . 4 J 1 2 9 1 4 . 2 J 3 9 . 2 J 8 6 . 7 J 1 0 7 3 3 . 3 J 7 9 . 4 J 6 9 . 2 J 8 2 . 1 J No v - 2 0 1 0 0 . 0 3 56 . 6 J 1 4 9 2 5 4 1 0 0 1 4 1 1 2 9 1 5 5 3 4 . 3 J 1 6 4 3 2 . 9 J 6 3 . 2 J 3 1 . 4 J 1 7 7 . 0 1 0 6 . 0 1 7 7 4 9 . 8 J 5 9 . 1 J 7 5 . 5 J 9 4 . 2 J Ma y - 2 0 1 1 0 . 0 2 36 J 1 0 1 2 4 2 3 6 J 1 7 4 8 0 . 5 J 1 2 4 1 7 4 1 2 4 5 0 . 7 J 8 9 . 2 J 1 9 . 2 J 3 4 6 . 0 9 2 . 3 J 1 2 7 7 0 . 8 J 7 1 . 6 J 7 7 . 8 J 1 3 7 No v - 2 0 1 1 0 . 0 2 58 . 7 J 3 4 . 3 J 4 8 4 7 0 . 7 J 1 8 3 1 5 0 1 5 7 6 7 . 4 J 1 8 4 4 3 . 6 J 4 3 . 6 J 1 7 . 3 J 4 6 7 . 0 6 7 . 8 J 2 2 3 4 8 . 7 J 6 9 . 4 J 7 3 . 3 J 8 1 . 2 J Ma y - 2 0 1 2 0 . 0 7 68 . 3 J 1 6 6 3 4 2 8 6 . 6 J 2 7 8 1 2 2 1 2 8 2 9 4 1 4 2 4 8 . 9 J 8 7 . 5 J 2 3 . 9 J 2 9 1 . 0 7 4 . 2 J 1 0 5 7 8 . 8 J 8 4 . 8 J 6 0 . 8 J 7 4 . 3 J No v - 2 0 1 2 0 . 0 7 37 . 1 J 1 5 2 4 2 5 1 2 0 1 5 1 1 1 7 5 3 . 4 J 1 0 0 1 3 3 3 6 . 5 J 1 3 2 1 9 . 3 J 5 0 4 . 0 7 6 . 6 J 7 4 . 7 J 3 8 . 0 J 4 9 . 1 J 7 4 . 1 J 7 0 . 6 J Ma y - 2 0 1 3 0 . 0 6 73 . 9 J 8 0 . 2 J 2 8 8 6 2 . 5 J 1 0 8 1 1 5 2 0 9 5 6 0 1 4 4 3 9 . 5 J 1 6 9 1 9 . 8 J 3 4 2 . 0 6 9 . 7 J 6 9 . 4 J 5 0 . 2 J 6 4 . 6 J 3 0 . 3 J DRY Ma y - 2 0 1 4 0 . 0 6 20 . 3 J 3 3 . 0 J 3 4 3 2 8 . 6 J 8 0 . 2 J 6 7 . 9 J 1 1 0 2 9 1 1 5 7 2 9 . 3 J 5 8 . 9 J 1 8 . 3 J 3 6 8 . 0 5 2 . 4 J 9 0 . 9 J 9 4 . 3 J 7 2 . 9 J 3 7 . 9 J DRY No v - 2 0 1 4 0 . 1 2 64 . 5 J 2 7 3 6 7 5 1 2 3 7 . 3 J NS 24 6 3 9 8 1 8 9 3 2 . 1 J 1 0 0 1 9 . 7 J 5 1 5 6 9 . 9 J 2 0 7 8 6 . 6 J 5 7 . 7 J 4 6 . 6 J DRY Ma y - 2 0 1 5 0 . 0 1 19 . 9 J 3 4 . 3 J 4 1 2 1 7 . 9 J 1 5 1 1 3 0 2 7 1 8 1 9 2 0 2 2 5 . 8 J 6 3 . 2 J 2 4 . 4 J 2 9 2 5 7 . 1 J 5 4 . 3 J 5 7 . 6 J 5 9 . 7 J 5 4 . 2 J 7 8 . 3 J No v - 2 0 1 5 0 . 0 1 21 . 4 J 3 4 . 6 J 6 2 5 1 4 5 1 0 9 2 3 3 1 3 1 2 9 4 1 3 1 5 4 . 3 J 1 1 9 2 1 . 3 J 6 9 . 2 J 5 7 . 7 J 9 3 . 8 J 5 5 . 8 J 4 4 . 7 J 6 3 . 2 J 7 4 . 0 J Ma y - 2 0 1 6 0 . 0 2 24 . 6 J 8 9 . 5 J 6 4 8 7 8 . 9 J 6 8 . 1 J NS 56 1 7 5 1 3 2 5 5 1 . 0 J 3 4 4 2 3 . 6 J 5 5 0 4 6 . 2 J 5 2 . 1 J 5 6 . 3 J 5 1 . 8 J 7 5 . 1 J 7 6 . 1 J No v - 2 0 1 6 0 . 0 2 49 . 4 J 5 5 . 2 J 9 4 5 1 9 8 1 2 3 NS 33 6 4 1 1 2 8 5 4 5 . 3 J 2 6 0 3 1 . 3 J 6 5 4 5 3 . 1 J 7 3 . 1 J 5 0 . 0 J 6 5 . 8 J 9 9 . 1 J NS Pa r a m e t e r :Be r y l l i u m C A S N o . 7 4 4 0 - 4 1 - 7 Sa m p l e M D L A n a l y t i c a l R e s u l t s ( µ g / L ) Da t e S W S L 2 L S t a n d a r d 2 B S t a n d a r d MW - 1 S M W - 2 S M W - 3 S M W - 3 A M W - 4 M W - 5 M W - 6 M W - 7 M W - 8 M W - 9 A M W - 1 0 M W - 1 1 M W - 1 2 S M W - 1 3 M W - 1 4 S S W - 1 S W - 2 S W - 3 S W - 4 Ja n - 2 0 1 0 1 4 6 . 5 0 . 0 6 0.2 J 0 . 9 J ND 0.1 J 1 . 0 1 . 0 0 . 1 J ND 0.1 J 0 . 2 J 0 . 2 J 0 . 3 J ND 0.3 J 0 . 6 J 0 . 2 J ND 0.2 J 0 . 1 J Ma y - 2 0 1 0 0 . 0 2 0.5 J 0 . 1 J ND N D 0.8 J 0 . 5 J 0 . 1 J 0 . 1 J 0 . 4 J ND 0.1 J 0 . 1 J 0 . 1 J 0 . 3 J 0 . 1 J 0 . 1 J 0 . 1 J 0 . 1 J 0 . 1 J No v - 2 0 1 0 0 . 0 2 0.3 J 0 . 1 J 0 . 1 J 0 . 1 J 0 . 7 J 1 . 0 0 . 1 J 0 . 1 J 0 . 2 J ND 0.1 J 0 . 2 J 0 . 1 J 0 . 3 J 0 . 2 J 0 . 1 J 0 . 1 J 0 . 1 J 0 . 1 J Ma y - 2 0 1 1 0 . 0 2 0. 1 6 J 0 . 1 J ND N D 0. 5 7 J 0 . 9 2 J ND N D 0. 0 6 J ND 0. 2 9 J 0 . 3 1 J ND 0. 1 2 J 0 . 2 J 0 . 1 2 J 0 . 0 6 J ND 0.57 J No v - 2 0 1 1 0 . 0 2 0. 2 6 J 0 . 0 7 J ND N D 0. 6 5 J 0 . 2 4 J 0 . 0 6 J 0 . 0 6 J 0 . 2 4 J ND 0. 1 6 J 0 . 1 0 J ND 0. 1 4 J 0 . 2 9 J ND 0.06 J 0 . 0 9 J 0 . 1 0 J Ma y - 2 0 1 2 0 . 0 7 0. 1 9 J 0 . 1 7 J ND N D 0. 5 0 J 0 . 5 0 J ND N D 0. 1 3 J ND 0. 0 9 J 0 . 0 8 J ND 0. 1 2 J 2 . 0 0 . 1 9 J ND N D 0.15 J No v - 2 0 1 2 0 . 0 7 0. 1 8 J 0 . 0 9 J ND N D 0. 4 7 J 0 . 1 3 J 0 . 0 9 J ND 0. 0 9 J ND 0. 0 8 J 0 . 2 9 J ND 0. 1 3 J 0 . 3 9 J ND N D N D 0.12 J Ma y - 2 0 1 3 0 . 0 3 0. 0 4 J 0 . 1 0 J 0 . 0 9 J ND N D 0. 2 3 J 0 . 1 6 J ND N D N D 0. 0 8 J 1 . 0 0 . 0 3 J 0 . 1 2 J 0 . 4 8 J 0 . 1 2 J 0 . 0 7 J 0 . 1 1 J DRY Ma y - 2 0 1 4 0 . 0 3 0 . 0 3 U 0. 0 6 J 0 . 0 3 J 0.0 3 U 0. 2 3 J 0.0 3 U 0. 0 5 J 0 . 0 4 J 0 . 1 2 J 0.0 3 U 0. 0 4 J 0 . 0 3 J 0 . 0 3 J 0 . 0 4 J 0 . 0 3 J 0 . 1 6 J 0 . 0 4 J 0 . 0 4 J DRY No v - 2 0 1 4 0 . 0 4 0 . 0 4 U 0. 1 1 J 0.0 4 U 0 . 0 4 U 0 . 0 4 U N S 0 . 0 4 U 0 . 0 4 U 0. 0 4 J 0.0 4 U 0. 0 4 J 0 . 2 4 J 0.0 4 U 0. 0 8 J 0 . 0 8 J 0.04 U 0 . 0 4 U 0.08 J DRY Ma y - 2 0 1 5 0 . 0 2 0. 0 3 J 0 . 0 8 J 0 . 0 4 J 0 . 0 2 J 0 . 5 5 J 0 . 2 0 J 0 . 1 5 J 0 . 0 6 J 0 . 2 6 J 0.0 2 U 0. 0 4 J 0 . 1 8 J 0.0 2 U 0 . 0 2 U 0.04 J 0 . 0 6 J 0 . 0 5 J 0 . 1 1 J 0 . 0 4 J No v - 2 0 1 5 0 . 0 2 0 . 0 2 U 0. 0 7 J 0 . 0 4 J 0 . 0 4 J 0 . 3 0 J 0 . 0 8 J 0 . 0 5 J 0 . 0 5 J 0.0 2 U 0 . 0 2 U 0. 0 5 J 0 . 0 6 J 0 . 0 4 J 0 . 0 3 J 0 . 4 8 J 0 . 0 2 J 0 . 0 3 J 0 . 1 3 J 0 . 0 9 J Ma y - 2 0 1 6 0 . 0 4 0. 0 7 J 0 . 0 8 J 0 . 0 6 J 0 . 0 5 J 0 . 1 8 J NS 0. 0 7 J 0 . 0 7 J 0 . 0 6 J 0.0 4 U 0. 0 5 J 0 . 0 5 J 0.0 4 U 0. 0 6 J 0 . 1 3 J 0.04 U 0.04 J 0 . 1 0 J 0.04 U No v - 2 0 1 6 0 . 0 4 0. 0 5 J 0.0 4 U 0. 1 4 J 0 . 0 8 J 0 . 1 5 J NS 0. 1 3 J 0 . 1 0 J 0 . 2 4 J 0.0 4 U 0. 1 0 J 0 . 1 2 J 0 . 1 0 J 0.0 4 U 0.06 J 0 . 0 5 J 0.04 U 0.09 J NS Co m p l i a n c e L i m i t ( µ g / L ) Co m p l i a n c e L i m i t ( µ g / L ) Page 2 of 17 Ta b l e 4 Hi s t o r i c a l G r o u n d w a t e r a n d S u r f a c e W a t e r Q u a l i t y D a t a Co n s t r u c t i o n a n d D e m o l i t i o n D e b r i s ( C & D ) L a n d f i l l ( P e r m i t # 7 4 - 0 7 ) , P i t t C o u n t y , N o r t h C a r o l i n a Pa r a m e t e r :Ca d m i u m C A S N o . 7 4 4 0 - 4 3 - 9 Sa m p l e M D L A n a l y t i c a l R e s u l t s ( µ g / L ) Da t e S W S L 2 L S t a n d a r d 2 B S t a n d a r d MW - 1 S M W - 2 S M W - 3 S M W - 3 A M W - 4 M W - 5 M W - 6 M W - 7 M W - 8 M W - 9 A M W - 1 0 M W - 1 1 M W - 1 2 S M W - 1 3 M W - 1 4 S S W - 1 S W - 2 S W - 3 S W - 4 Ja n - 2 0 1 0 1 2 2 0 . 0 4 0.2 J 0 . 4 J ND 0.2 J 0 . 3 J 0 . 6 J 0 . 3 J 0 . 2 J 0 . 2 J 0 . 1 J ND 0.2 J 0 . 2 J 0 . 2 J 0 . 2 J 1 . 9 1 . 2 0 . 3 J 0 . 1 J Ma y - 2 0 1 0 0 . 0 2 0.2 J 0 . 8 J 0 . 3 J 0 . 1 J 1 . 2 0 . 3 J 2 . 2 2 . 0 0 . 2 J 0 . 2 J 1 . 0 0 . 1 J 0 . 2 J 0 . 4 J 0 . 1 J 0 . 2 J 0 . 1 J 0 . 1 J 0 . 1 J No v - 2 0 1 0 0 . 0 2 0.2 J 0 . 6 J 0 . 1 J 0 . 1 J 0 . 5 J 2 . 0 0 . 6 J 0 . 4 J 0 . 3 J 0 . 1 J 0 . 1 J 0 . 2 J 0 . 1 J 0 . 2 J 0 . 3 J 0 . 1 J 0 . 1 J 0 . 1 J 0 . 2 J Ma y - 2 0 1 1 0 . 0 2 0. 1 1 J 0 . 2 9 J 0 . 0 7 J 0 . 1 J 0 . 3 5 J 0 . 6 4 J 0 . 4 3 J 0 . 4 J 0 . 0 6 J 0 . 0 5 J 0 . 8 J 0 . 1 7 J 0 . 1 J 0 . 1 6 J 0 . 1 2 J 0 . 2 2 J 0 . 1 1 J 0 . 2 9 J 0 . 1 4 J No v - 2 0 1 1 0 . 0 2 0. 3 7 J 0 . 1 7 J 0 . 1 2 J 0 . 3 6 J 0 . 4 3 J 0 . 6 9 J 0 . 2 9 J 0 . 3 8 J 0 . 1 3 J 0 . 0 8 J 0 . 0 8 J 0 . 1 3 J 0 . 0 6 J 0 . 1 3 J 0 . 2 9 J ND N D 0.14 J 0 . 0 5 J Ma y - 2 0 1 2 0 . 0 3 N D 0.2 5 J 0 . 0 4 J 0 . 0 8 J 0 . 1 6 J 0 . 2 2 J 0 . 2 7 J 0 . 1 2 J 0 . 0 6 J 0 . 1 4 J 0 . 0 5 J 0 . 2 2 J 0 . 0 5 J 0 . 1 8 J 0 . 1 8 J 0 . 1 7 J ND N D N D No v - 2 0 1 2 0 . 0 3 0. 1 6 J 0 . 1 8 J 0 . 0 5 J 0 . 3 4 J 0 . 2 2 J 0 . 1 2 J 0 . 1 2 J 0 . 1 6 J 0 . 0 4 J 0 . 0 4 J 0 . 0 8 J 0 . 6 4 J 0 . 1 3 J 0 . 1 2 J 0 . 3 6 J 0 . 0 7 J 0 . 0 3 J 0 . 0 4 J 0 . 0 7 J Ma y - 2 0 1 3 0 . 0 5 0. 1 5 J 0 . 2 9 J 0 . 1 1 J 0 . 0 7 J 0 . 0 9 J 0 . 2 0 J 0 . 3 1 J 0 . 1 4 J 0 . 1 3 J 0 . 6 4 J 0 . 0 6 J 0 . 9 7 J 0 . 6 8 J 0 . 2 1 J 0 . 1 8 J 0 . 0 8 J 0 . 0 5 J 0 . 0 8 J DRY Ma y - 2 0 1 4 0 . 0 5 0. 1 1 J 0 . 1 4 J 0 . 1 9 J 0 . 1 5 J 0 . 0 8 J 0 . 0 5 J 0 . 3 1 J 0 . 2 9 J 0 . 3 9 J 1 . 0 0 . 1 7 J 0 . 2 5 J 0 . 0 9 J 1 . 0 2 . 0 0 . 2 2 J 0.05 U 0 . 0 5 U D R Y No v - 2 0 1 4 0 . 0 4 0. 1 2 J 0 . 4 4 J 0 . 1 7 J 0 . 1 2 J 0.0 4 U N S 0. 2 0 J 0 . 2 6 J 0 . 0 8 J 0 . 3 1 J 0 . 2 1 J 0 . 5 8 J 0 . 2 6 J 0 . 1 8 J 0 . 2 6 J 0 . 0 5 J 0 . 0 4 J 0 . 0 4 J DRY Ma y - 2 0 1 5 0 . 0 1 0. 1 3 J 0 . 1 3 J 0 . 0 3 J 0 . 0 1 J 0 . 3 3 J 0 . 6 2 J 0 . 4 8 J 0 . 4 4 J 0 . 1 0 J 0 . 1 0 J 0 . 0 8 J 0 . 3 3 J 0 . 0 9 J 0 . 1 0 J 0 . 8 6 J 0 . 0 7 J 0 . 0 2 J 0 . 0 3 J 0 . 0 3 J No v - 2 0 1 5 0 . 0 1 0. 0 8 J 0 . 2 6 J 0 . 0 4 J 0 . 1 5 J 0 . 2 1 J 0 . 3 8 J 0 . 4 5 J 0 . 3 5 J 0 . 1 2 J 0 . 1 8 J 0 . 6 2 J 0 . 4 5 J 1 1 0 . 6 6 J 0 . 0 4 J 0 . 0 4 J 0 . 0 7 J 0 . 0 8 J Ma y - 2 0 1 6 0 . 0 5 0. 1 2 J 0 . 1 0 J 0.0 5 U 0. 0 7 J 0 . 0 8 J NS 0. 4 8 J 0 . 1 5 J 0.0 5 U 0. 1 2 J 0 . 1 3 J 0 . 1 6 J 0 . 1 4 J 0 . 2 3 J 0 . 4 4 J 0.05 U 0 . 0 5 U 0 . 0 5 U 0 . 0 5 U No v - 2 0 1 6 0 . 0 5 0. 1 3 J 0 . 1 0 J 0.0 5 U 0. 0 8 J 0 . 0 9 J NS 0. 1 8 J 0 . 3 0 J 0 . 2 0 J 0 . 1 3 J 0 . 0 9 J 0 . 5 0 J 0 . 1 5 J 0 . 0 5 J 0 . 2 9 J 0.05 U 0 . 0 5 U 0 . 0 5 U N S Pa r a m e t e r :Ch r o m i u m C A S N o . 7 4 4 0 - 4 7 - 3 Sa m p l e M D L A n a l y t i c a l R e s u l t s ( µ g / L ) Da t e S W S L 2 L S t a n d a r d 2 B S t a n d a r d MW - 1 S M W - 2 S M W - 3 S M W - 3 A M W - 4 M W - 5 M W - 6 M W - 7 M W - 8 M W - 9 A M W - 1 0 M W - 1 1 M W - 1 2 S M W - 1 3 M W - 1 4 S S W - 1 S W - 2 S W - 3 S W - 4 Ja n - 2 0 1 0 1 0 1 0 5 0 0 . 1 0 N D N D 1 J ND 2.8 J 2 . 7 J 0 . 8 J ND N D 2.7 J 0 . 9 J ND N D 0.7 J 2 . 6 J 2 . 1 J 0 . 7 J 0 . 4 J 0 . 3 J Ma y - 2 0 1 0 0 . 0 3 0.5 J 0 . 7 J 2 J 0 . 1 J 2 . 1 J 2 . 3 J 4 . 2 J 2 . 5 J 0 . 8 J 0 . 3 J 0 . 6 J 0 . 3 J 0 . 6 J 0 . 8 J 0 . 5 J 0 . 4 J 0 . 9 J 0 . 4 J 0 . 9 J No v - 2 0 1 0 0 . 0 3 0.5 J 0 . 6 J 1 . 7 J 0 . 3 J 3 . 1 J 1 1 2 J 0 . 4 J 0 . 8 J ND 0.1 J 0 . 1 J 1 . 7 J 0 . 9 J 0 . 5 J 0 . 5 J 0 . 5 J 0 . 2 J 0 . 3 J Ma y - 2 0 1 1 0 . 0 4 0. 4 4 J 0 . 6 2 J 0 . 7 6 J 0 . 3 J 3 J 6 . 2 J 2 . 4 J 1 . 2 J 0 . 8 4 J 0 . 1 7 J 0 . 8 3 J 0 . 2 3 J 2 . 6 J 0 . 5 1 J 0 . 4 8 J 1 . 8 J 0 . 5 8 J 0 . 9 9 J 3 . 1 J No v - 2 0 1 1 0 . 0 4 0. 6 6 J 0 . 2 9 J 1 . 7 J 0 . 6 7 J 3 . 7 J 9 . 5 J 2 . 7 J 0 . 9 2 J 2 . 1 J 0 . 2 3 J 0 . 8 6 J ND 14 . 0 0 . 5 7 J 1 . 3 J 0 . 7 4 J 1 . 2 J 0 . 6 3 J 0 . 4 6 J Ma y - 2 0 1 2 0 . 1 8 0. 9 1 J 1 . 7 J 1 . 0 J 1 . 5 J 5 . 7 J 6 . 1 J 2 . 5 J 2 . 0 J 1 . 7 J ND 0. 5 0 J ND 6.5 J 0 . 6 1 J 2 . 0 J 2 . 6 J 1 . 4 J 0 . 3 8 J 1 . 0 0 J No v - 2 0 1 2 0 . 1 8 0. 4 5 J 1 . 9 J 1 . 5 J 2 . 3 J 3 . 6 J 5 . 2 J 1 . 8 J 1 . 5 J 3 . 0 J ND 0. 8 0 J 0 . 2 5 J 1 6 . 0 0 . 6 8 J 1 . 2 J 0 . 5 4 J 0 . 5 4 5 J 0 . 1 8 J 1 . 1 J Ma y - 2 0 1 3 0 . 0 4 0. 5 0 J 0 . 5 7 J 0 . 5 0 J 1 . 0 J 2 . 2 J 4 . 8 J 3 . 2 J 7 . 4 J 2 . 2 J 0 . 1 3 J 1 . 1 J 0 . 7 8 J 1 9 . 0 0 . 5 9 J 5 . 8 J 2 . 4 J 1 . 6 J 1 . 6 J DRY Ma y - 2 0 1 4 0 . 0 4 0. 4 5 J 0 . 8 1 J 1 . 8 J 0 . 2 9 J 1 . 9 J 3 . 1 J 0 . 3 8 J 6 . 1 J 3 . 8 J 0.0 4 U 0. 8 3 J 0 . 2 0 J 9 . 0 J 0 . 4 6 J 2 . 1 J 1 . 9 J 0 . 9 5 J 0 . 5 1 J DRY No v - 2 0 1 4 0 . 1 4 1.6 J 3 . 5 J 5 . 1 J 2 . 8 J 0.1 4 U N S 2.6 J 1 1 5 . 8 J 0.1 4 U 1.1 J 0 . 3 4 J 2 1 0 . 3 5 J 1 4 0 . 9 8 J 0 . 8 1 J 0.14 U D R Y Ma y - 2 0 1 5 0 . 1 2 0. 1 7 J 0 . 1 4 J 2 . 6 J 0.1 2 U 3.0 J 9 . 3 J 0 . 8 6 J 1 8 2 . 9 J 0 . 1 8 J 1 . 4 J 1 . 1 J 8 . 9 J 0 . 6 3 J 0 . 8 2 J 1 . 2 J 1 . 1 J 1 . 2 J 0 . 9 5 J No v - 2 0 1 5 0 . 1 2 0 . 1 2 U 1.2 J 7 . 3 J 5 . 1 J 3 . 3 J 9 . 8 J 1 . 3 J 9 . 9 J 1 . 3 J 0.1 2 U 1.7 J 0 . 6 5 J 2 . 7 J 0 . 4 2 J 8 . 4 J 0 . 8 6 J 0 . 4 3 J 0 . 8 5 J 0 . 5 3 J Ma y - 2 0 1 6 0 . 0 6 0. 5 2 J 0 . 7 0 J 9 . 8 J 1 . 0 J 1 . 9 J NS 4.0 J 1 8 8 . 7 J 0 . 0 8 J 9 . 2 J 0 . 8 5 J 2 7 0 . 8 1 J 3 . 0 J 1 . 6 J 0 . 8 0 J 1 . 1 J 0 . 7 1 J No v - 2 0 1 6 0 . 0 6 0. 5 3 J 0 . 3 7 J 1 8 4 . 1 J 2 . 0 J NS 4.8 J 8 . 8 J 9 . 3 J 0.0 6 U 11 0 . 4 3 J 2 8 0 . 2 6 J 1 . 2 J 0 . 9 5 J 1 . 0 J 0 . 6 1 J NS Co m p l i a n c e L i m i t ( µ g / L ) Co m p l i a n c e L i m i t ( µ g / L ) Page 3 of 17 Ta b l e 4 Hi s t o r i c a l G r o u n d w a t e r a n d S u r f a c e W a t e r Q u a l i t y D a t a Co n s t r u c t i o n a n d D e m o l i t i o n D e b r i s ( C & D ) L a n d f i l l ( P e r m i t # 7 4 - 0 7 ) , P i t t C o u n t y , N o r t h C a r o l i n a Pa r a m e t e r :Co b a l t C A S N o . 7 4 4 0 - 4 8 - 4 Sa m p l e M D L A n a l y t i c a l R e s u l t s ( µ g / L ) Da t e S W S L 2 L S t a n d a r d 2 B S t a n d a r d MW - 1 S M W - 2 S M W - 3 S M W - 3 A M W - 4 M W - 5 M W - 6 M W - 7 M W - 8 M W - 9 A M W - 1 0 M W - 1 1 M W - 1 2 S M W - 1 3 M W - 1 4 S S W - 1 S W - 2 S W - 3 S W - 4 Ja n - 2 0 1 0 1 0 1 4 0 . 0 2 2.5 J 0 . 4 J 5 . 7 J 1 5 0 . 9 J 1 . 6 J 0 . 6 J 1 . 1 J 1 0 0 . 7 J 0 . 3 J 0 . 5 J 0 . 2 J 1 . 3 J 0 . 4 J 0 . 6 J 0 . 3 J 1 . 2 J 0 . 2 J Ma y - 2 0 1 0 0 . 1 0 0.7 J 1 . 1 J 1 8 3 . 8 J 0 . 9 J 2 . 8 J 5 . 4 J 9 . 0 J 2 1 0 . 2 J 0 . 2 J 0 . 3 J 0 . 2 J 0 . 9 J 0 . 2 J 0 . 3 J 0 . 6 J 0 . 6 J 0 . 5 J No v - 2 0 1 0 0 . 1 0 0.8 J 3 . 3 J 3 7 1 7 1 . 1 J 7 . 8 J 0 . 7 J 0 . 8 J 2 4 0 . 2 J 0 . 3 J 0 . 3 J 0 . 8 J 1 . 0 J 0 . 3 J 0 . 4 J 0 . 5 J 1 . 0 J 0 . 7 J Ma y - 2 0 1 1 0 . 0 3 0. 4 1 J 3 . 7 J 1 4 7 . 7 J 0 . 5 8 J 1 . 5 J 1 . 4 J 4 . 2 J 3 1 0 . 0 9 J 2 . 2 J 0 . 2 6 J 1 . 5 J 1 . 2 J 0 . 1 8 J 0 . 8 4 J 1 . 5 J 0 . 4 2 J 1 . 6 J No v - 2 0 1 1 0 . 0 3 0. 4 8 J 1 . 1 J 6 . 8 J 1 5 0 . 7 6 J 1 . 6 J 1 . 1 J 1 . 2 J 1 7 0 . 1 1 J 0 . 2 6 J 0 . 2 0 J 0 . 8 4 J 0 . 6 0 J 0 . 4 2 J 0 . 5 0 J 0 . 7 5 J 1 . 3 J 0 . 8 6 J Ma y - 2 0 1 2 0 . 0 2 0. 3 8 J 7 . 0 J 2 . 6 J 2 5 0 . 6 3 J 1 . 7 J 1 . 3 J 3 . 6 J 3 1 0 . 0 6 J 0 . 4 5 J 0 . 2 2 J 0 . 7 2 J 1 . 5 J 3 . 4 J 0 . 8 9 J 0 . 7 9 J 0 . 7 6 J 0 . 7 2 J No v - 2 0 1 2 0 . 0 2 0. 3 1 J 8 . 6 J 1 5 2 8 0 . 3 8 J 1 . 1 J 0 . 5 5 J 1 . 3 J 2 7 0 . 0 8 J 0 . 8 6 J 0 . 5 3 J 1 . 1 J 0 . 4 6 J 1 . 6 J 0 . 4 2 J 0 . 3 1 J 0 . 8 9 J 1 . 7 J Ma y - 2 0 1 3 0 . 0 2 0. 2 0 J 2 . 0 J 2 . 2 J 1 8 0 . 3 5 J 1 . 6 J 3 . 0 J 9 . 2 J 2 4 0 . 0 4 J 0 . 3 3 J 0 . 7 3 J 0 . 8 8 J 0 . 4 7 J 2 . 4 J 0 . 7 3 J 0 . 5 2 J 0 . 4 8 J DRY Ma y - 2 0 1 4 0 . 0 2 0. 1 3 J 1 . 0 J 5 . 9 J 0 . 2 8 J 0 . 3 0 J 0 . 3 4 J 0 . 2 2 J 5 . 2 J 2 2 0 . 0 5 J 0 . 4 4 J 0 . 1 9 J 0 . 8 2 J 0 . 3 2 J 0 . 2 4 J 0 . 3 8 J 0 . 8 8 J 0 . 3 1 J DRY No v - 2 0 1 4 0 . 1 2 0. 3 3 J 5 . 6 J 2 . 6 J 1 5 0 . 1 3 J NS 2.8 J 5 . 0 J 1 2 0.1 2 U 0. 4 9 J 0 . 6 6 J 1 . 1 J 0 . 4 7 J 1 . 8 J 0 . 4 1 J 0 . 3 4 J 0 . 7 5 J DRY Ma y - 2 0 1 5 0 . 0 3 0. 4 4 J 0 . 2 9 J 0 . 8 9 J 0 . 1 2 J 0 . 8 0 J 2 . 6 J 0 . 9 1 J 1 8 1 4 0 . 0 6 J 0 . 3 1 J 0 . 4 3 J 0 . 8 1 J 0 . 2 8 J 0 . 7 9 J 0 . 3 3 J 0 . 3 2 J 0 . 4 8 J 0 . 3 4 J No v - 2 0 1 5 0 . 0 3 0. 3 0 J 0 . 3 9 J 2 . 7 J 1 1 1 . 3 J 1 . 5 J 1 . 1 J 4 . 1 J 4 . 0 J 0 . 1 0 J 0 . 3 8 J 0 . 5 2 J 0 . 3 0 J 0 . 3 5 J 1 . 6 J 0 . 2 6 J 0 . 2 0 J 0 . 7 4 J 0 . 2 6 J Ma y - 2 0 1 6 0 . 0 4 0. 2 0 J 0 . 4 9 J 3 . 1 J 7 . 6 J 0 . 3 8 J NS 4.5 J 1 6 1 1 0 . 0 7 J 0 . 9 2 J 0 . 3 0 J 1 . 7 J 0 . 2 6 J 0 . 6 1 J 0 . 2 7 J 0 . 2 8 J 0 . 7 2 J 0 . 1 8 J No v - 2 0 1 6 0 . 0 4 0. 3 1 J 1 . 7 J 3 . 0 J 6 . 2 J 0 . 3 3 J NS 2.5 J 3 . 3 J 9 . 8 J 0 . 1 1 3 J 1 . 0 J 0 . 7 0 J 2 . 0 J 0 . 9 4 J 1 . 3 J 0 . 3 4 J 0 . 3 2 J 0 . 4 7 J NS Pa r a m e t e r :Co p p e r C A S N o . 7 4 4 0 - 5 0 - 8 Sa m p l e M D L A n a l y t i c a l R e s u l t s ( µ g / L ) Da t e S W S L 2 L S t a n d a r d 2 B S t a n d a r d MW - 1 S M W - 2 S M W - 3 S M W - 3 A M W - 4 M W - 5 M W - 6 M W - 7 M W - 8 M W - 9 A M W - 1 0 M W - 1 1 M W - 1 2 S M W - 1 3 M W - 1 4 S S W - 1 S W - 2 S W - 3 S W - 4 Ja n - 2 0 1 0 1 0 1 , 0 0 0 7 0 . 0 4 0.9 J 1 . 2 J 1 . 9 J 1 . 3 J 1 . 8 J 1 . 6 J 1 . 1 J 2 . 4 J 0 . 7 J 1 . 3 J 1 . 0 J 0 . 8 J 0 . 7 J 1 . 2 J 2 . 4 J 2 . 7 J 0 . 8 J 0 . 8 J 0 . 7 J Ma y - 2 0 1 0 0 . 0 3 0.7 J 0 . 9 J 1 . 1 J 4 . 0 J 1 . 4 J 1 . 1 J 2 . 4 J 2 . 9 J 1 . 1 J 0 . 1 J 0 . 6 J 0 . 2 J 0 . 3 J 0 . 5 J 0 . 1 J 0 . 4 J 0 . 4 J 0 . 3 J 0 . 5 J No v - 2 0 1 0 0 . 0 3 0.5 J 1 . 1 J 1 . 1 J 0 . 5 J 1 . 3 J 3 . 9 J 1 . 5 J 0 . 8 J 0 . 8 J ND N D N D 1.1 J 0 . 8 J 0 . 1 J 0 . 3 J 0 . 1 J 0 . 1 J 0 . 3 J Ma y - 2 0 1 1 0 . 0 2 1.1 J 1 . 5 J 1 . 3 J 1 . 1 J 1 . 9 J 4 . 4 J 1 . 6 J 1 . 5 J 1 . 3 J 0 . 2 9 J 1 . 7 J 0 . 6 7 J 1 . 5 J 2 . 1 J 0 . 8 1 J 1 . 7 J 0 . 9 4 J 1 . 1 J 1 . 5 J No v - 2 0 1 1 0 . 0 2 0. 8 9 J 0 . 4 9 J 1 . 5 J 0 . 8 8 J 1 . 1 J 7 . 1 J 1 . 7 J 0 . 9 3 J 0 . 6 9 J 0 . 0 5 J 0 . 1 8 J 0 . 0 9 J 0 . 5 3 J 0 . 8 2 J 0 . 5 9 J 0 . 1 7 J 0 . 4 6 J 0 . 3 0 J ND Ma y - 2 0 1 2 0 . 0 6 0. 8 7 J 1 . 3 J 0 . 9 1 J 0 . 8 5 J 1 . 8 J 3 . 4 J 2 . 2 J 1 . 9 J 1 . 1 J 0 . 1 1 J 0 . 3 7 J 0 . 5 0 J 0 . 8 7 J 0 . 7 7 J 1 . 9 J 2 . 3 J 1 . 2 J 0 . 3 4 J 0 . 4 2 J No v - 2 0 1 2 0 . 0 6 1.0 J 1 . 3 J 1 . 6 J 1 . 4 J 0 . 8 8 J 4 . 2 J 1 . 2 J 1 . 9 J 1 . 4 J 0 . 5 0 J 0 . 6 4 J 0 . 7 0 J 0 . 9 1 J 1 . 0 J 0 . 5 7 J 2 . 1 J 0 . 3 6 J 0 . 5 8 J 1 . 2 J Ma y - 2 0 1 3 0 . 0 6 0. 9 6 J 1 . 6 J 0 . 7 7 J 1 . 0 J 0 . 6 1 J 4 . 8 J 1 . 8 J 1 . 9 J 1 . 3 J 0 . 3 5 J 0 . 6 8 J 1 . 4 J 1 . 5 J 0 . 6 3 J 1 . 8 J 1 . 3 J 1 . 4 J 1 . 1 J DRY Ma y - 2 0 1 4 0 . 0 6 1.0 J 0 . 8 0 J 1 . 1 J 0 . 5 4 J 0 . 3 1 J 4 . 0 J 0 . 5 2 J 1 . 7 J 2 . 0 J 0 . 6 7 J 0 . 3 8 J 0 . 3 7 J 0 . 6 3 J 1 . 0 J 1 . 8 J 2 . 4 J 0 . 4 6 J 0 . 4 0 J DRY No v - 2 0 1 4 0 . 1 0 0. 9 4 J 2 . 0 J 1 . 5 J 0 . 7 4 J 5 . 5 J NS 0. 6 1 J 4 . 8 J 1 . 2 J 0 . 5 1 J 0 . 7 6 J 0 . 9 6 J 1 . 2 J 0 . 4 0 J 1 . 1 J 0 . 4 6 J 0 . 3 7 J 0 . 4 1 J DRY Ma y - 2 0 1 5 0 . 0 2 0. 6 0 J 0 . 3 6 J 0 . 5 6 J 0 . 1 2 J 0 . 9 1 J 3 . 5 J 0 . 8 4 J 1 . 6 J 0 . 6 6 J 0 . 2 3 J 0 . 2 7 J 0 . 9 0 J 0 . 3 5 J 0 . 6 0 J 0 . 5 5 J 0 . 8 0 J 0 . 6 2 J 0 . 7 2 J 0 . 6 0 J No v - 2 0 1 5 0 . 0 2 1.6 J 2 . 7 J 2 . 3 J 1 . 3 J 1 . 0 J 4 . 9 J 1 . 9 J 5 . 6 J 0 . 7 1 J 0 . 4 6 J 0 . 7 5 J 1 . 1 J 1 . 5 J 2 . 0 J 3 . 6 J 0 . 6 6 J 0 . 8 7 J 0 . 7 2 J 0 . 7 4 J Ma y - 2 0 1 6 0 . 0 7 3.0 J 1 . 2 J 2 . 2 J 1 . 3 J 0 . 5 0 J NS 2.5 J 1 . 9 J 1 . 7 J 0 . 4 3 J 0 . 9 7 J 0 . 5 1 J 1 . 6 J 1 . 3 J 1 . 8 J 0 . 6 8 J 0 . 5 2 J 0 . 6 4 J 0 . 6 0 J No v - 2 0 1 6 0 . 0 7 1. 8 J 0 . 3 4 J 1 . 7 J 1 . 1 J 0 . 3 6 J NS 1. 0 J 4 . 1 J 1 . 8 J 0 . 1 6 J 0 . 7 0 J 0 . 3 5 J 1 . 5 J 0 . 5 0 J 0 . 6 2 J 0 . 4 8 J 0 . 3 4 J 0 . 3 9 J NS Co m p l i a n c e L i m i t ( µ g / L ) Co m p l i a n c e L i m i t ( µ g / L ) Page 4 of 17 Ta b l e 4 Hi s t o r i c a l G r o u n d w a t e r a n d S u r f a c e W a t e r Q u a l i t y D a t a Co n s t r u c t i o n a n d D e m o l i t i o n D e b r i s ( C & D ) L a n d f i l l ( P e r m i t # 7 4 - 0 7 ) , P i t t C o u n t y , N o r t h C a r o l i n a Pa r a m e t e r :Le a d C A S N o . 7 4 3 9 - 9 2 - 1 Sa m p l e M D L A n a l y t i c a l R e s u l t s ( µ g / L ) Da t e S W S L 2 L S t a n d a r d 2 B S t a n d a r d MW - 1 S M W - 2 S M W - 3 S M W - 3 A M W - 4 M W - 5 M W - 6 M W - 7 M W - 8 M W - 9 A M W - 1 0 M W - 1 1 M W - 1 2 S M W - 1 3 M W - 1 4 S S W - 1 S W - 2 S W - 3 S W - 4 Ja n - 2 0 1 0 1 0 1 5 2 5 0 . 0 4 0.8 J 3 . 9 J 0 . 1 J 0 . 2 J 1 4 . 0 1 . 5 J 0 . 5 J 0 . 1 J 0 . 4 J 1 . 8 J 1 . 4 J 0 . 2 J 0 . 4 J 3 . 2 J 2 1 8 . 0 J 0 . 3 J 0 . 6 J 0 . 3 J Ma y - 2 0 1 0 0 . 0 1 3.0 J 1 . 1 J 0 . 1 J ND 6.3 J 0 . 7 J 0 . 2 J 0 . 1 J 0 . 4 J 0 . 1 J 2 . 0 J 0 . 2 J 1 . 1 J 1 . 8 J 1 . 5 J 0 . 9 J 0 . 5 J 0 . 6 J 1 . 6 J No v - 2 0 1 0 0 . 0 1 2.0 J 0 . 5 J 0 . 1 J 0 . 2 J 6 . 4 J 3 . 9 J 0 . 3 J 0 . 2 J 0 . 4 J ND 1.1 J 0 . 2 J 1 . 9 J 3 . 1 J 2 . 2 J 1 J 0 . 1 J 0 . 5 J 0 . 2 J Ma y - 2 0 1 1 0 . 0 2 0.6 J 0 . 9 2 J 0 . 1 6 J 0 . 1 5 J 4 . 8 J 3 . 0 J 0 . 1 8 J 0 . 1 2 J 0 . 1 3 J 0 . 1 6 J 1 . 2 J 0 . 1 J 0 . 8 3 J 0 . 8 J 4 . 4 J 4 . 3 J 0 . 5 J 0 . 2 8 J 5 . 7 J No v - 2 0 1 1 0 . 0 2 1.7 J 0 . 6 8 J 0 . 4 2 J 0 . 1 7 J 7 . 3 J 2 . 1 J 0 . 2 4 J 0 . 2 9 J 1 . 2 J 0 . 1 6 J 1 . 9 J 0 . 1 2 J 0 . 6 4 J 0 . 9 3 J 3 . 2 J 0 . 9 5 J 0 . 7 9 J 1 . 1 J 0 . 2 9 J Ma y - 2 0 1 2 0 . 0 8 1.1 J 1 . 3 J 0 . 2 2 J 0 . 2 5 J 7 . 6 J 3 . 5 J 0 . 3 9 J 0 . 3 3 J 0 . 2 0 J ND 0. 7 4 J 0 . 0 9 J 0 . 9 0 J 1 . 0 J 1 1 . 0 7 . 0 J 2 . 1 J 0 . 4 6 J 1 . 3 J No v - 2 0 1 2 0 . 0 8 1.1 J 0 . 6 4 J 0 . 3 1 J 0 . 3 5 J 3 . 1 J 1 . 4 J 0 . 5 5 J 0 . 2 0 J 0 . 1 9 J 0 . 1 2 J 0 . 4 3 J 0 . 4 9 J 0 . 6 5 J 1 . 5 J 7 . 9 J 0 . 4 5 J 0 . 4 3 J 0 . 1 1 J 1 . 3 J Ma y - 2 0 1 3 0 . 0 2 0. 1 4 J 0 . 5 5 J 0 . 0 3 J 0 . 0 4 J 0 . 2 9 J 1 . 5 J 0 . 0 5 J 0 . 0 8 J 0 . 0 6 J 0 . 1 2 J 0 . 2 3 J 0 . 5 3 J 0 . 0 7 J 0 . 9 3 J 0 . 7 5 J 1 . 6 J 1 . 2 J 3 . 0 J DRY Ma y - 2 0 1 4 0 . 0 2 0. 1 1 J 0 . 1 9 J 0 . 1 6 J 0 . 0 6 J 0 . 7 4 J 0 . 5 1 J 0 . 0 4 J 0 . 1 4 J 0 . 1 9 J 0 . 0 7 J 0 . 1 0 J 0 . 0 4 J 0.0 2 U 0. 4 0 J 0 . 4 2 J 5 . 2 J 0 . 3 9 J 1 . 2 J DRY No v - 2 0 1 4 0 . 1 3 0. 1 8 J 8 3 0.1 3 U 0 . 1 3 U 0. 3 1 J NS 0 . 1 3 U 0. 2 2 J 0.1 3 U 0 . 1 3 U 0 . 1 3 U 0 . 1 3 U 0 . 1 3 U 0. 5 2 J 1 . 4 J 0 . 3 0 J 0 . 2 1 J 0 . 7 8 J DRY Ma y - 2 0 1 5 0 . 0 3 0. 3 4 J 0 . 2 7 J 0 . 1 6 J 0 . 0 6 J 3 . 8 J 3 . 9 J 0 . 0 9 J 0 . 2 5 J 0 . 3 9 J 0.0 3 U 0. 0 5 J 0 . 1 0 J 0.0 3 U 0. 1 1 J 0 . 5 6 J 0 . 6 9 J 0 . 5 3 J 2 . 5 J 0 . 8 4 J No v - 2 0 1 5 0 . 0 3 0. 2 6 J 2 . 6 J 0 . 0 9 J 0 . 2 8 J 2 . 0 J 0 . 6 5 J 0 . 1 9 J 0 . 3 5 J 0 . 1 6 J 0 . 1 6 J 0 . 1 1 J 0 . 0 9 J 0 . 1 9 J 1 . 0 J 1 3 0 . 3 8 J 0 . 4 6 J 1 J 0 . 6 8 J Ma y - 2 0 1 6 0 . 0 6 1.8 J 0 . 3 2 J 0 . 2 4 J 0 . 3 4 J 0 . 8 7 J NS 0. 1 4 J 0 . 2 7 J 0 . 2 0 J 0 . 1 9 J 0 . 1 2 J 0 . 0 7 J 0 . 0 7 J 2 . 1 J 2 . 7 J 0 . 8 2 J 0 . 6 2 J 1 . 0 J 0 . 6 0 J No v - 2 0 1 6 0 . 0 6 0. 6 9 J 0 . 1 3 J 0 . 1 9 J 0 . 2 6 J 0 . 4 5 J NS 0. 6 6 J 0 . 2 4 J 0 . 6 9 J 0 . 0 6 J 0.0 6 U 0. 2 4 J 0.0 6 U 0. 0 8 J 1 . 0 J 0 . 3 2 J 0 . 4 0 J 0 . 4 2 J NS Pa r a m e t e r :Me r c u r y C A S N o . 7 4 4 0 - 0 2 - 0 Sa m p l e M D L A n a l y t i c a l R e s u l t s ( µ g / L ) Da t e S W S L 2 L S t a n d a r d 2 B S t a n d a r d MW - 1 S M W - 2 S M W - 3 S M W - 3 A M W - 4 M W - 5 M W - 6 M W - 7 M W - 8 M W - 9 A M W - 1 0 M W - 1 1 M W - 1 2 S M W - 1 3 M W - 1 4 S S W - 1 S W - 2 S W - 3 S W - 4 Ma y - 2 0 1 4 0 . 2 0 1 0 . 0 1 2 0 . 0 1 0 . 0 1 U N A 0 . 0 1 U 0 . 0 1 U N A N A N A N A 0 . 0 1 U N A N A N A 0 . 0 1 U N A N A N A N A N A D R Y No v - 2 0 1 4 0 . 0 6 0 . 0 6 U N A 0 . 0 6 U 0 . 0 6 U NA NS NA N A 0.0 6 U N A N A N A 0 . 0 6 U NA N A N A N A N A DRY Ma y - 2 0 1 5 0 . 0 5 0 . 0 5 U N A 0 . 0 5 U 0 . 0 5 U NA N A N A N A 0.0 5 U N A N A N A 0 . 0 5 U NA N A N A N A N A NA No v - 2 0 1 5 0 . 0 5 0 . 0 5 U N A 0 . 0 5 U 0 . 0 5 U NA N A N A N A 0.0 5 U N A N A N A 0 . 0 5 U NA N A N A N A N A NA Ma y - 2 0 1 6 0 . 0 4 0. 0 4 U N A 0.0 4 J 0. 0 4 U N A NS NA N A 0.0 4 J NA N A N A 0.0 4 J NA N A N A N A N A NA No v - 2 0 1 6 0 . 0 4 0. 0 4 U N A 4. 9 3 0. 0 4 U N A NS NA N A 0 . 0 4 U N A N A N A 0 . 0 4 U N A N A N A N A N A DRY Pa r a m e t e r :Ni c k e l C A S N o . 7 4 4 0 - 0 2 - 0 Sa m p l e M D L A n a l y t i c a l R e s u l t s ( µ g / L ) Da t e S W S L 2 L S t a n d a r d 2 B S t a n d a r d MW - 1 S M W - 2 S M W - 3 S M W - 3 A M W - 4 M W - 5 M W - 6 M W - 7 M W - 8 M W - 9 A M W - 1 0 M W - 1 1 M W - 1 2 S M W - 1 3 M W - 1 4 S S W - 1 S W - 2 S W - 3 S W - 4 Ja n - 2 0 1 0 5 0 1 0 0 8 8 0 . 0 4 1.7 J 3 . 1 J 5 . 8 J 2 . 6 J 2 . 1 J 4 . 8 J 1 . 1 J 0 . 6 J 5 . 1 J 2 . 5 J 0 . 8 J 2 . 2 J 0 . 9 J 1 . 6 J 1 . 0 J 1 . 3 J 0 . 9 J 0 . 8 J 0 . 6 J Ma y - 2 0 1 0 0 . 0 5 3.2 J 1 . 7 J 1 0 . 8 J 1 . 5 J 2 . 0 J 7 . 1 J 7 . 5 J 1 0 . 4 J 9 . 2 J 2 . 0 J 1 . 5 J 1 . 8 J 0 . 9 J 1 . 7 J 1 . 1 J 0 . 4 J 1 . 2 J 0 . 8 J 0 . 8 J No v - 2 0 1 0 0 . 0 5 3.9 J 6 . 2 J 1 2 . 1 J 6 . 4 J 2 . 1 J 1 6 . 8 J 5 . 7 J 1 . 7 J 9 . 1 J 1 . 8 J 4 . 1 J 1 . 6 J 4 . 1 J 2 . 2 J 1 . 9 J 0 . 7 J 1 . 6 J 0 . 8 J 0 . 8 J Ma y - 2 0 1 1 0 . 0 4 1.2 J 3 . 1 J 3 . 3 J 1 . 6 J 1 . 4 J 5 . 5 J 2 J 2 . 3 J 5 . 2 J 0 . 7 7 J 1 . 1 J 1 . 2 J 6 . 8 J 2 . 1 J 0 . 8 6 J 1 . 3 J 1 . 8 J 1 . 1 J 1 . 5 J No v - 2 0 1 1 0 . 0 4 1.4 J 1 . 2 J 4 . 3 J 3 . 6 J 1 . 8 J 6 . 9 J 2 . 7 J 1 . 5 J 5 . 4 J 0 . 7 8 J 1 . 3 J 1 . 2 J 7 . 6 J 1 . 3 J 2 J 0 . 8 8 J 0 . 9 9 J 0 . 7 6 J 0 . 5 5 J Ma y - 2 0 1 2 0 . 0 6 2.6 J 4 . 4 J 3 . 6 J 4 . 8 J 1 . 7 J 4 . 7 J 2 . 9 J 4 . 3 J 7 . 2 J 0 . 2 3 J 2 . 3 J 3 . 4 J 5 . 6 J 3 . 4 J 5 . 2 J 3 . 8 J 2 . 9 J 5 . 0 J 6 . 1 J No v - 2 0 1 2 0 . 0 6 2.6 J 6 . 6 J 5 . 8 J 8 . 8 J 1 . 8 J 5 . 4 J 1 . 4 J 2 . 5 J 8 . 6 J 1 . 3 J 1 . 6 J 2 . 3 J 7 . 3 J 1 . 7 J 1 . 9 J 0 . 4 6 J 0 . 4 6 J 0 . 7 8 J 1 . 1 J Ma y - 2 0 1 3 0 . 4 5 1.8 J 4 . 6 J 3 . 5 J 5 . 0 J 1 . 8 J 5 . 6 J 4 . 3 J 5 . 5 J 9 . 3 J 0 . 9 8 J 1 . 5 J 2 . 4 J 4 . 8 J 0 . 8 4 J 4 . 4 J 0 . 9 7 J 0 . 6 5 J 0 . 4 7 J DRY Ma y - 2 0 1 4 0 . 4 5 1.3 J 1 . 6 J 3 . 1 J 1 . 5 J 0 . 8 7 J 2 . 2 J 0 . 7 1 J 3 . 5 J 7 . 8 J 1 . 3 J 1 . 0 J 2 . 7 J 5 . 9 J 1 . 2 J 1 . 6 J 0 . 9 8 J 0 . 8 9 J 0.45 U D R Y No v - 2 0 1 4 0 . 1 2 2.6 J 5 . 9 J 5 . 7 J 6 . 7 J 1 . 5 J NS 3.1 J 6 . 0 J 8 . 4 J 1 . 2 J 1 . 8 J 4 . 5 J 6 . 7 J 1 . 1 J 6 . 9 J 1 . 2 J 1 . 4 J 0 . 5 3 J DRY Ma y - 2 0 1 5 0 . 0 1 1.6 J 0 . 5 7 J 2 . 3 J 0 . 4 3 J 2 . 0 J 6 . 4 J 1 . 7 J 6 . 8 J 4 . 4 J 0 . 8 7 J 1 . 2 0 J 3 . 2 0 J 4 . 9 0 J 1 . 4 0 J 1 . 6 0 J 0 . 6 7 J 0 . 7 0 J 0 . 6 0 J 0 . 7 4 J No v - 2 0 1 5 0 . 0 1 2.9 J 1 . 3 J 5 . 7 J 9 . 7 J 2 . 5 J 1 0 . 1 J 2 . 3 J 5 . 4 J 2 . 5 J 1 . 9 J 1 . 7 J 4 . 1 J 2 . 3 J 2 . 5 J 4 . 1 J 0 . 8 0 J 0 . 7 4 J 0 . 8 8 J 0 . 7 5 J Ma y - 2 0 1 6 0 . 0 6 2.0 J 2 . 0 J 4 . 5 J 2 . 6 J 1 . 3 J NS 5.5 J 6 . 3 J 6 . 4 J 1 . 2 J 4 . 1 J 3 . 6 J 6 . 6 J 1 . 4 J 2 . 5 J 0 . 9 2 J 0 . 8 6 J 0 . 7 5 J 0 . 7 8 J No v - 2 0 1 6 0 . 0 6 3.8 J 2 . 6 J 8 . 5 J 5 . 5 J 2 . 4 J NS 3.6 J 5 . 4 J 1 0 . 4 J 1 . 8 J 6 . 7 J 5 . 2 J 8 . 9 J 3 . 4 J 3 . 0 J 0 . 7 2 J 1 . 0 J 0 . 6 4 J NS Co m p l i a n c e L i m i t ( µ g / L ) Co m p l i a n c e L i m i t ( µ g / L ) Co m p l i a n c e L i m i t ( µ g / L ) Page 5 of 17 Ta b l e 4 Hi s t o r i c a l G r o u n d w a t e r a n d S u r f a c e W a t e r Q u a l i t y D a t a Co n s t r u c t i o n a n d D e m o l i t i o n D e b r i s ( C & D ) L a n d f i l l ( P e r m i t # 7 4 - 0 7 ) , P i t t C o u n t y , N o r t h C a r o l i n a Pa r a m e t e r :Se l e n i u m C A S N o . 7 7 8 2 - 4 9 - 2 Sa m p l e M D L A n a l y t i c a l R e s u l t s ( µ g / L ) Da t e S W S L 2 L S t a n d a r d 2 B S t a n d a r d MW - 1 S M W - 2 S M W - 3 S M W - 3 A M W - 4 M W - 5 M W - 6 M W - 7 M W - 8 M W - 9 A M W - 1 0 M W - 1 1 M W - 1 2 S M W - 1 3 M W - 1 4 S S W - 1 S W - 2 S W - 3 S W - 4 Ja n - 2 0 1 0 1 0 2 0 5 0 . 1 2 5.2 J 1 . 9 J ND 2.7 J 0 . 2 J 5 . 0 J 2 . 0 J 0 . 2 J 3 . 0 J ND 0.2 J ND 0.2 J 0 . 5 J 0 . 4 J ND N D N D N D Ma y - 2 0 1 0 0 . 3 2 1.0 J 3 . 5 J 1 1 1 . 0 J 1 . 1 J 7 . 3 J 7 . 5 J 9 . 8 J 4 . 4 J ND 0.6 J ND N D N D N D N D 0.7 J ND N D No v - 2 0 1 0 0 . 3 2 1.8 J ND N D 8.8 J 0 . 7 J ND 7.2 J 1 . 1 J 4 . 7 J ND N D N D 1.3 J 0 . 8 J ND N D 0.6 J ND N D Ma y - 2 0 1 1 0 . 2 0 0. 4 6 J ND 3.5 J 1 . 1 J 0 . 7 3 J 4 . 9 J 1 . 3 J 3 J 3 . 0 J ND 1.1 J ND 1.7 J 0 . 3 8 J 0 . 4 4 J 0 . 3 J 0 . 2 2 J 0 . 6 4 J 0 . 3 3 J No v - 2 0 1 1 0 . 2 0 1.2 J 1 . 3 J 6 . 6 J 2 . 3 J 0 . 6 1 J 5 . 9 J 1 . 6 J 1 . 1 J 1 . 9 J ND 0. 6 2 J ND 2.5 J 0 . 7 8 J 0 . 3 3 J 0 . 2 0 J 0 . 2 9 J 0 . 2 1 J ND Ma y - 2 0 1 2 0 . 1 7 1.7 J 1 3 3 . 8 J 4 . 3 J 1 . 6 J 5 . 0 J 1 . 5 J 4 . 3 J 4 . 5 J ND 0. 9 3 J 0 . 7 2 J 3 . 7 J 0 . 6 4 J 1 . 4 J 0 . 4 1 J 0 . 5 7 J ND N D No v - 2 0 1 2 0 . 1 7 1.2 J 1 5 0 . 3 J 1 1 . 0 1 . 2 J 4 . 3 J 0 . 6 4 J 1 . 9 J 6 . 9 J 0 . 2 1 J 2 . 1 J 1 . 1 J 4 . 1 J 1 . 0 J 0 . 9 4 J 0 . 1 7 J 0 . 3 0 J 0 . 2 6 J ND Ma y - 2 0 1 3 0 . 0 6 1.6 J 1 4 5 . 4 J 4 . 9 J 1 . 1 J 4 . 4 J 2 . 7 J 9 . 9 J 6 . 8 J 0 . 0 8 J 1 . 7 J 1 . 1 J 5 . 7 J 0 . 8 3 J 5 . 5 J 0 . 3 9 J 0 . 3 8 J 0 1 9 J DRY Ma y - 2 0 1 4 0 . 0 6 0 . 0 6 U 0. 3 8 J 2 . 9 J 0.0 6 U 0 . 0 6 U 0 . 0 6 U 0 . 0 6 U 3.4 J 4 . 9 J 0.0 6 U 0 . 0 6 U 0 . 0 6 U 1.3 J 0.0 6 U 0 . 0 6 U 0 . 0 6 U 0 . 0 6 U 0 . 0 6 U D R Y No v - 2 0 1 4 0 . 1 6 / 0 . 4 4 3.0 J 0.1 6 U 0 . 1 6 U 7.2 J 2 . 6 J NS 1.7 J 0.4 4 U 0 . 1 6 U 0 . 4 4 U 1.8 J 0.4 4 U 0 . 4 4 U 0. 6 2 J 0.16 U 0 . 1 6 U 0 . 1 6 U 0 . 1 6 U D R Y Ma y - 2 0 1 5 0 . 2 2 / 0 . 5 3 0. 3 5 J 0.2 2 U 9.4 J 0.5 3 U 1.4 J 0.5 3 U 0. 4 6 J 0.5 3 U 4.3 J 0.2 2 U 1. 1 0 J 1 . 4 0 J 3 . 4 0 J 0 . 5 9 J 0 . 2 8 J 0.22 U 0.29 J 0.22 U 0 . 2 2 U No v - 2 0 1 5 0. 2 2 / 0 . 5 3 0. 2 3 J 0 . 2 6 J 0 . 7 9 J 0.2 2 U 1.8 J 1 0 0 . 8 1 J 9 . 6 J 1 . 7 J 0.2 2 U 2.5 J 0 . 9 1 J 0 . 9 1 J 0 . 6 3 J 0.22 U 0.46 J 0.22 U 0 . 2 2 U 0 . 2 2 U Ma y - 2 0 1 6 0. 5 4 / 0 . 6 2 0.5 4 U 1.3 J 2 J 1 . 1 J 0 . 7 6 J NS 3.2 J 9 . 9 J 8 . 6 J 0.5 4 U 4.6 J 0 . 7 7 J 6 . 7 J 0 . 7 3 J 0.54 U 0 . 5 4 U 0 . 5 4 U 0 . 5 4 U 0 . 5 4 U No v - 2 0 1 6 0. 5 4 / 0 . 6 2 1. 6 J 2 . 6 J 0. 6 2 U 9. 7 J 1 . 7 J NS 6. 3 J 0. 6 2 U 0 . 6 2 U 0 . 6 2 U 9. 4 J 1 . 4 J 0. 6 2 U 1. 1 J 0 . 6 9 J 0.54 U 0.76 J 0.54 U N S Pa r a m e t e r :Si l v e r C A S N o . 7 4 4 0 - 2 2 - 4 Sa m p l e M D L A n a l y t i c a l R e s u l t s ( µ g / L ) Da t e S W S L 2 L S t a n d a r d 2 B S t a n d a r d MW - 1 S M W - 2 S M W - 3 S M W - 3 A M W - 4 M W - 5 M W - 6 M W - 7 M W - 8 M W - 9 A M W - 1 0 M W - 1 1 M W - 1 2 S M W - 1 3 M W - 1 4 S S W - 1 S W - 2 S W - 3 S W - 4 Ja n - 2 0 1 0 1 0 2 0 0 . 0 6 0 . 0 4 0.1 J 0 . 2 J 0 . 2 J 0 . 1 J 0 . 1 J 0 . 1 J 0 . 1 J 0 . 3 J 0 . 3 J 0 . 1 J 0 . 1 J ND 0.1 J 0 . 1 J 0 . 1 J 0 . 2 J 0 . 1 J 0 . 2 J 0 . 1 J Ma y - 2 0 1 0 0 . 0 3 0.1 J ND 0.1 J ND 0.1 J 0 . 1 J ND N D 0.1 J ND N D 0.1 J ND N D N D N D 0.1 J ND N D No v - 2 0 1 0 0 . 0 3 N D N D N D N D N D 0.1 J 0 . 1 J 0 . 1 J 0 . 1 J ND N D N D 0.1 J ND N D N D N D N D N D Ma y - 2 0 1 1 0 . 0 2 N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D 0.04 J ND No v - 2 0 1 1 0 . 0 2 N D N D 0.0 4 J ND N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D Ma y - 2 0 1 2 0 . 1 0 N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D No v - 2 0 1 2 0 . 1 0 N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D Ma y - 2 0 1 3 0 . 0 3 N D N D N D N D N D N D N D N D N D N D N D 0. 0 3 J ND N D N D N D N D N D D R Y Ma y - 2 0 1 4 0 . 0 3 0 . 0 3 U 0 . 0 3 U 0 . 0 3 U 0 . 0 3 U 0 . 0 3 U 0 . 0 3 U 0 . 0 3 U 0 . 0 3 U 0 . 0 3 U 0 . 0 3 U 0 . 0 3 U 0 . 0 3 U 0 . 0 3 U 0 . 0 3 U 0 . 0 3 U 0 . 0 3 U 0 . 0 3 U 0 . 0 3 U D R Y No v - 2 0 1 4 0 . 0 4 0 . 0 4 U 0 . 0 4 U 0 . 0 4 U 0 . 0 4 U 0. 0 6 J NS 0 . 0 4 U 0 . 0 4 U 0 . 0 4 U 0 . 0 4 U 0 . 0 4 U 0. 0 4 J 0.0 4 U 0 . 0 4 U 0 . 0 4 U 0 . 0 4 U 0 . 0 4 U 0 . 0 4 U D R Y Ma y - 2 0 1 5 0 . 0 1 0 . 0 1 U 0 . 0 1 U 0 . 0 1 U 0 . 0 1 U 0. 0 2 J 0 . 0 2 J 0.0 1 U 0. 0 2 J 0.0 1 U 0 . 0 1 U 0 . 0 1 U 0 . 0 1 U 0 . 0 1 U 0 . 0 1 U 0 . 0 1 U 0 . 0 1 U 0 . 0 1 U 0 . 0 1 U 0 . 0 1 U No v - 2 0 1 5 0 . 0 1 0 . 0 1 U 0 . 0 1 U 0 . 0 1 U 0. 0 3 J 0 . 0 2 J 0 . 0 3 J 0 . 0 1 J 0.0 1 U 0. 0 2 J 0.0 1 U 0 . 0 1 U 0 . 0 1 U 0. 0 3 J 0.0 1 U 0.02 J 0.01 U 0 . 0 1 U 0 . 0 1 U 0.03 J Ma y - 2 0 1 6 0 . 0 6 0 . 0 6 U 0 . 0 6 U 0 . 0 6 U 0 . 0 6 U 0 . 0 6 U N S 0 . 0 6 U 0 . 0 6 U 0 . 0 6 U 0 . 0 6 U 0 . 0 6 U 0 . 0 6 U 0 . 0 6 U 0 . 0 6 U 0 . 0 6 U 0 . 0 6 U 0 . 0 6 U 0 . 0 6 U 0 . 0 6 U No v - 2 0 1 6 0 . 0 6 0 . 0 6 U 0 . 0 6 U 0 . 0 6 U 0 . 0 6 U 0 . 0 6 U N S 0 . 0 6 U 0 . 0 6 U 0 . 0 6 U 0 . 0 6 U 0 . 0 6 U 0 . 0 6 U 0 . 0 6 U 0 . 0 6 U 0 . 0 6 U 0 . 0 6 U 0 . 0 6 U 0 . 0 6 U N S Co m p l i a n c e L i m i t ( µ g / L ) Co m p l i a n c e L i m i t ( µ g / L ) Page 6 of 17 Ta b l e 4 Hi s t o r i c a l G r o u n d w a t e r a n d S u r f a c e W a t e r Q u a l i t y D a t a Co n s t r u c t i o n a n d D e m o l i t i o n D e b r i s ( C & D ) L a n d f i l l ( P e r m i t # 7 4 - 0 7 ) , P i t t C o u n t y , N o r t h C a r o l i n a Pa r a m e t e r :Th a l l i u m C A S N o . 7 4 4 0 - 2 8 - 0 Sa m p l e M D L A n a l y t i c a l R e s u l t s ( µ g / L ) Da t e S W S L 2 L S t a n d a r d 2 B S t a n d a r d MW - 1 S M W - 2 S M W - 3 S M W - 3 A M W - 4 M W - 5 M W - 6 M W - 7 M W - 8 M W - 9 A M W - 1 0 M W - 1 1 M W - 1 2 S M W - 1 3 M W - 1 4 S S W - 1 S W - 2 S W - 3 S W - 4 Ja n - 2 0 1 0 5 . 5 0 . 2 0 . 4 7 0 . 0 3 0.1 J ND N D 0.1 J 0 . 1 J 0 . 1 J ND N D N D N D N D N D N D N D N D 0.1 J 0 . 1 J 0 . 1 J ND Ma y - 2 0 1 0 0 . 0 5 N D N D N D N D 0.1 J ND N D 0.5 J 0 . 1 J ND N D N D N D N D N D N D N D N D N D No v - 2 0 1 0 0 . 0 5 N D 0.1 J ND N D 0.1 J 0 . 5 J 0 . 1 J ND N D N D N D N D N D N D N D N D N D N D N D Ma y - 2 0 1 1 0 . 0 2 N D 0.1 J ND N D 0. 0 3 J 0 . 0 7 J 0 . 9 J 0 . 2 4 J ND N D 0. 0 5 J ND 0. 0 8 J 0 . 0 4 J 0 . 0 4 J 0 . 0 5 J ND N D 0.09 J No v - 2 0 1 1 0 . 0 2 N D 0.0 7 J 0 . 2 4 J 0 . 1 4 J 0 . 0 5 J 0 . 1 6 J 0 . 0 8 J 0 . 0 8 J ND 0. 0 8 J 0 . 0 5 J 0 . 1 2 J 0 . 0 4 J 0 . 0 7 J 0 . 0 5 J ND N D 0.12 J 0 . 0 9 J Ma y - 2 0 1 2 0 . 0 7 0. 3 5 J 0 . 2 2 J ND 0. 1 0 J ND N D 0. 1 0 J 0 . 2 6 J ND N D N D N D N D N D N D N D N D N D N D No v - 2 0 1 2 0 . 0 7 N D 0.1 0 J ND 0. 1 3 J ND N D N D 0. 2 9 J ND N D N D N D N D N D N D N D N D N D N D Ma y - 2 0 1 3 0 . 0 2 0. 0 4 J 0 . 0 7 J ND 0. 0 8 J ND 0. 0 7 J 0 . 1 0 J 0 . 2 0 J 0 . 0 6 J ND N D 0. 1 4 J ND N D 0.30 J 0 . 0 5 J ND 0.06 J DRY Ma y - 2 0 1 4 0 . 0 2 0 . 0 2 U 0. 0 7 J 0.0 2 U 0. 0 6 J 0.0 2 U 0. 0 2 J 0.0 2 U 0. 2 6 J 0 . 0 3 J 0.0 2 U 0 . 0 2 U 0 . 0 2 U 0 . 0 2 U 0 . 0 2 U 0.13 J 0 . 0 2 J 0.02 U 0 . 0 2 U D R Y No v - 2 0 1 4 0 . 1 3 0 . 1 3 U 0 . 1 3 U 0 . 1 3 U 0 . 1 3 U 0 . 1 3 U N S 0 . 1 3 U 0 . 1 3 U 0 . 1 3 U 0 . 1 3 U 0 . 1 3 U 0 . 1 3 U 0 . 1 3 U 0 . 1 3 U 0.15 J 0.13 U 0 . 1 3 U 0 . 1 3 U D R Y Ma y - 2 0 1 5 0 . 0 2 0 . 0 2 U 0. 0 6 J 0.0 2 U 0 . 0 2 U 0. 0 5 J 0 . 0 7 J 0 . 1 0 J 0 . 1 0 J 0 . 0 6 J 0.0 2 U 0 . 0 2 U 0. 3 0 J 0.0 2 U 0. 0 3 J 0 . 0 2 J 0 . 0 3 J 0 . 0 2 J 0 . 0 3 J 0 . 0 4 J No v - 2 0 1 5 0 . 0 2 0 . 0 2 U 0. 0 7 J 0.0 2 U 0. 1 6 J 0 . 0 5 J 0 . 0 9 J 0 . 0 6 J 0 . 0 4 J 0 . 1 8 J 0.0 2 U 0 . 0 2 U 0. 0 3 J 0 . 0 7 J 0 . 0 6 J 0 . 1 3 J 0.02 U 0 . 0 2 U 0.04 J 0 . 0 7 J Ma y - 2 0 1 6 0 . 0 5 0 . 0 5 U 0. 0 7 J 0.0 5 U 0 . 0 5 U 0 . 0 5 U N S 0. 1 8 J 0 . 0 9 J 0.0 5 U 0 . 0 5 U 0 . 0 5 U 0 . 0 5 U 0 . 0 5 U 0. 0 7 J 0 . 0 7 J 0.05 U 0.06 J 0.05 U 0 . 0 5 U No v - 2 0 1 6 0 . 0 5 0. 0 5 U 0.1 0 J 0. 0 5 U 0 . 0 5 U 0 . 0 5 U NS 0. 0 5 U 0 . 0 5 U 0 . 0 5 U 0 . 0 5 U 0 . 0 5 U 0 . 0 5 U 0 . 0 5 U 0 . 0 5 U 0 . 0 5 U 0 . 0 5 U 0 . 0 5 U 0.05 J NS Pa r a m e t e r :Ti n C A S N o . 7 4 4 0 - 3 1 - 5 Sa m p l e M D L A n a l y t i c a l R e s u l t s ( µ g / L ) Da t e S W S L 2 L S t a n d a r d 2 B S t a n d a r d MW - 1 S M W - 2 S M W - 3 S M W - 3 A M W - 4 M W - 5 M W - 6 M W - 7 M W - 8 M W - 9 A M W - 1 0 M W - 1 1 M W - 1 2 S M W - 1 3 M W - 1 4 S S W - 1 S W - 2 S W - 3 S W - 4 Ja n - 2 0 1 0 1 0 0 2 , 0 0 0 8 0 0 0 . 0 8 N A N A N D N D N A N A N A N A N D N A N A N A N A N A N A N A N A N A N A Ma y - 2 0 1 0 0 . 1 1 N A N A 1.5 J 3 . 9 J NA N A N A N A 0.4 J NA N A N A N A N A N A N A N A N A N A No v - 2 0 1 0 0 . 1 1 N A N A 0.5 J 0 . 6 J NA N A N A N A 0.5 J NA N A N A N A N A N A N A N A N A N A Ma y - 2 0 1 1 0 . 1 6 N A N A 0. 2 3 J 0 . 3 2 J NA N A N A N A 0. 9 5 J NA N A N A N A N A N A N A N A N A N A No v - 2 0 1 1 0 . 1 6 N A N A 0. 2 6 J 0 . 4 7 J NA N A N A N A 0. 2 4 J NA N A N A N A N A N A N A N A N A N A Ma y - 2 0 1 2 0 . 1 0 N A N A 0. 1 5 J 0 . 2 4 J NA N A N A N A N D N A N A N A N A N A N A N A N A N A N A No v - 2 0 1 2 0 . 1 0 N D N A 0. 1 3 J 0 . 2 8 J NA N A N A N A 0. 9 2 J NA N A N A N A N A N A N A N A N A N A Ma y - 2 0 1 3 0 . 0 6 N D N A 0. 2 4 J 0 . 2 0 J NA N A N A N A 0. 0 8 J NA N A N A N A N A N A N A N A N A D R Y Ma y - 2 0 1 4 0 . 0 6 0 . 0 6 U N A 0 . 0 6 U 0. 0 6 J NA N A N A N A 0 . 0 6 U N A N A N A 0 . 0 6 U N A N A N A N A N A D R Y No v - 2 0 1 4 0 . 0 5 0 . 0 5 U N A 0. 9 6 J 0.0 5 U N A N S N A N A 0. 2 2 J NA N A N A 0. 1 8 J NA N A N A N A N A D R Y Ma y - 2 0 1 5 0 . 0 6 0 . 0 6 U N A 0. 1 3 J 0.06 U N A N A N A N A 0. 0 6 J NA N A N A 0. 1 2 J NA N A N A N A N A N A No v - 2 0 1 5 0 . 0 6 0 . 0 6 U N A 0. 1 4 J 0 . 3 5 J NA N A N A N A 0. 2 0 J NA N A N A 0. 3 5 J NA N A N A N A N A N A Ma y - 2 0 1 6 0 . 0 6 0. 1 1 J NA 0. 1 1 J 0.0 6 U N A N S N A N A 0. 0 9 J NA N A N A 0. 3 3 J NA N A N A N A N A N A No v - 2 0 1 6 0 . 0 6 0 . 0 6 U N A 0 . 0 6 U 0 . 0 6 U N A N S N A N A 0 . 0 6 U N A N A N A 0 . 0 6 U N A N A N A N A N A N S Co m p l i a n c e L i m i t ( µ g / L ) Co m p l i a n c e L i m i t ( µ g / L ) Page 7 of 17 Ta b l e 4 Hi s t o r i c a l G r o u n d w a t e r a n d S u r f a c e W a t e r Q u a l i t y D a t a Co n s t r u c t i o n a n d D e m o l i t i o n D e b r i s ( C & D ) L a n d f i l l ( P e r m i t # 7 4 - 0 7 ) , P i t t C o u n t y , N o r t h C a r o l i n a Pa r a m e t e r :Va n a d i u m C A S N o . 7 4 4 0 - 6 2 - 2 Sa m p l e M D L A n a l y t i c a l R e s u l t s ( µ g / L ) Da t e S W S L 2 L S t a n d a r d 2 B S t a n d a r d MW - 1 S M W - 2 S M W - 3 S M W - 3 A M W - 4 M W - 5 M W - 6 M W - 7 M W - 8 M W - 9 A M W - 1 0 M W - 1 1 M W - 1 2 S M W - 1 3 M W - 1 4 S S W - 1 S W - 2 S W - 3 S W - 4 Ja n - 2 0 1 0 2 5 0 . 3 N E 0 . 2 8 1 J 3 . 5 J 2 . 3 J 2 . 1 J 1 1 . 4 J 5 . 1 J 1 1 . 6 J 0 . 8 J 0 . 9 J 4 . 9 J 4 . 5 J 1 . 3 J 2 . 4 J 4 . 9 J 3 5 1 8 . 9 J 0 . 8 J 0 . 9 J 0 . 6 J Ma y - 2 0 1 0 0 . 0 3 3.8 J 2 . 1 J 2 J 0 . 8 J 8 . 3 J 2 . 3 J 5 . 8 J 1 . 3 J 1 . 6 J 0 . 6 J 3 . 2 J 1 . 0 J 3 . 7 J 2 . 4 J 3 . 3 J 2 . 0 J 1 . 5 J 1 . 4 J 3 . 0 J No v - 2 0 1 0 0 . 0 3 3.3 J 0 . 6 J 2 . 6 J 1 . 6 J 9 . 4 J 3 . 2 J 4 . 4 J 1 . 1 J 1 . 9 J 0 . 9 J 1 . 9 J 0 . 6 J 4 . 4 J 3 . 6 J 8 . 5 J 3 . 1 J 1 . 1 J 0 . 9 J 0 . 9 J Ma y - 2 0 1 1 0 . 1 4 1.2 J 0 . 9 4 J 1 . 4 J 0 . 6 9 J 7 . 5 J 4 . 3 J 3 . 9 J 0 . 7 5 J 0 . 7 6 J 1 . 2 J 3 . 1 J 0 . 5 4 J 2 . 9 J 1 . 0 J 1 1 . 8 J 6 . 8 J 0 . 8 6 J 0 . 9 3 J 7 . 2 J No v - 2 0 1 1 0 . 1 4 2.5 J 0 . 7 5 J 3 J 0 . 8 8 J 8 . 5 J 2 . 4 J 3 . 3 J 1 . 2 J 4 . 1 J 1 . 3 J 9 . 2 J 0 . 5 5 J 4 . 8 J 1 . 4 J 8 . 4 J 2 . 2 J 3 . 4 J 1 . 1 J 0 . 8 8 J Ma y - 2 0 1 2 0 . 1 0 1.7 J 2 . 0 J 1 . 4 J 2 . 0 J 7 . 2 J 5 . 6 J 3 . 0 J 1 . 3 J 1 . 3 J 0 . 9 6 J 5 . 9 J 0 . 7 8 J 6 . 9 J 2 . 2 J 3 1 . 0 9 . 5 J 2 . 5 J 1 . 0 J 3 . 0 J No v - 2 0 1 2 0 . 1 0 1.2 J 1 . 7 J 1 . 8 J 1 . 6 J 5 . 8 J 2 . 0 J 4 . 7 J 0 . 5 2 J 1 . 2 J 0 . 2 5 J 4 . 1 J 0 . 4 4 J 6 . 4 J 3 . 0 J 2 2 . 7 J 1 . 5 J 0 . 8 3 J 0 . 6 7 J 2 . 3 J Ma y - 2 0 1 3 0 . 0 7 1.0 J 0 . 6 2 J 1 . 9 J 0 . 3 9 J 3 . 3 J 3 . 5 J 1 . 5 J 1 . 3 J 1 . 3 J 0 . 0 7 J 4 . 6 J 0 . 3 5 J 7 . 8 J 2 . 0 J 8 . 2 J 3 . 1 J 1 . 5 J 3 . 4 J DRY Ma y - 2 0 1 4 0 . 0 7 0. 1 6 J 0.0 7 U 1.3 J 0.0 7 U 3.2 J 1 . 1 J 0 . 3 4 J 1 . 3 J 1 . 0 J 0.0 7 U 2.9 J 0.0 7 U 4.1 J 1 . 4 J 1 . 4 J 6 . 0 J 0 . 4 8 J 1 . 2 J DRY No v - 2 0 1 4 0 . 0 6 0. 9 6 J 2 . 3 J 2 . 5 J 0 . 1 4 J 0 . 4 4 J NS 1.2 J 1 . 3 J 1 . 1 J 0 . 4 8 J 4 . 4 J 0 . 3 4 J 1 1 . 0 J 1 . 3 J 4 . 3 J 0 . 3 0 J 0.06 U 1.3 J DRY Ma y - 2 0 1 5 0 . 2 2 1.0 J 0 . 5 9 J 2 . 2 J 0 . 4 6 J 6 . 3 J 5 . 5 J 1 . 1 J 2 . 9 J 0 . 9 4 J 0.2 2 U 4. 9 0 J 0.2 2 U 5. 1 0 J 1 . 2 0 J 1 . 6 0 J 1 . 1 J 0 . 9 4 J 2 . 5 J 1 . 1 J No v - 2 0 1 5 0 . 2 2 2.3 J 2 . 8 J 3 . 2 J 1 . 5 J 5 . 3 J 1 . 2 J 4 . 1 J 1 . 9 J 1 . 2 J 0 . 9 1 J 5 . 3 J 0 . 5 4 J 3 . 2 J 5 . 8 J 2 7 1 . 3 J 0 . 8 4 J 1 . 7 J 1 . 5 J Ma y - 2 0 1 6 0 . 3 6 4.0 J 0.3 6 U 3.4 J 1 . 5 J 3 . 4 J NS 4.9 J 3 . 0 J 1 . 8 J 0.3 6 U 8.7 J 0.3 6 U 16 . 5 J 1 0 . 5 J 5 . 7 J 1 . 6 J 0 . 7 0 J 1 . 7 J 0 . 5 3 J No v - 2 0 1 6 0 . 3 6 2.0 J 0 . 3 9 J 3 . 3 J 1 . 9 J 2 . 7 J NS 5.6 J 1 . 6 J 3 . 0 J 0.3 6 U 8.5 J 0 . 5 9 J 1 6 . 4 J 1 . 5 J 2 . 6 J 0 . 5 7 J 0 . 5 4 J 1 . 0 J NS Pa r a m e t e r :Zi n c C A S N o . 7 4 4 0 - 6 6 - 6 Sa m p l e M D L A n a l y t i c a l R e s u l t s ( µ g / L ) Da t e S W S L 2 L S t a n d a r d 2 B S t a n d a r d MW - 1 S M W - 2 S M W - 3 S M W - 3 A M W - 4 M W - 5 M W - 6 M W - 7 M W - 8 M W - 9 A M W - 1 0 M W - 1 1 M W - 1 2 S M W - 1 3 M W - 1 4 S S W - 1 S W - 2 S W - 3 S W - 4 Ja n - 2 0 1 0 1 0 1 , 0 0 0 5 0 0 . 1 4 2.2 J 3 J 1 . 3 J 3 . 1 J 1 6 4 . 8 J 3 . 9 J 1 . 5 J 3 . 1 J 7 . 5 J 2 . 6 J 2 . 9 J 2 . 8 J 8 . 5 J 4 . 7 J 1 5 8 . 1 J 1 4 8 . 8 J Ma y - 2 0 1 0 0 . 0 8 2.2 J 5 . 8 J 2 . 3 J 2 . 9 J 8 . 5 J 4 . 3 J 3 . 3 J 3 . 8 J 6 . 3 J 1 . 5 J 4 . 0 J 2 . 0 J 1 . 1 J 7 . 5 J 1 . 2 J 2 . 3 J 5 . 3 J 1 1 3 . 0 J No v - 2 0 1 0 0 . 0 8 5.6 J 3 . 5 J 3 . 4 J 4 . 1 J 8 . 1 J 1 4 4 . 5 J 4 . 3 J 5 . 4 J 2 . 6 J 2 . 1 J 3 . 2 J 3 . 1 J 8 . 5 J 2 . 6 J 5 . 6 J 6 . 8 J 1 7 3 . 9 J Ma y - 2 0 1 1 0 . 2 4 2.6 J 3 . 1 J 3 . 6 J 3 . 2 J 6 . 1 J 7 . 4 J 1 . 8 J 2 . 4 J 5 . 4 J 3 . 2 J 3 . 5 J 2 . 1 J 3 . 5 J 3 2 . 0 2 . 6 J 9 . 6 J 1 2 5 . 8 J 9 . 4 J No v - 2 0 1 1 0 . 2 4 3.2 J 2 . 0 J 2 . 7 J 4 . 7 J 9 . 4 J 7 . 7 J 3 . 3 J 1 . 8 J 5 . 3 J 2 . 3 J 1 . 7 J 1 . 9 J 1 . 8 J 3 . 2 J 4 . 7 J 1 . 9 J 8 . 2 J 1 6 2 . 4 J Ma y - 2 0 1 2 0 . 4 8 1.4 J 2 . 0 J 0 . 7 2 J 5 . 7 J 4 . 7 J 6 . 6 J 0 . 9 1 J 0 . 6 6 J 3 . 2 J 0 . 6 6 J ND 1.7 J ND 8.1 J 6 . 2 J 6 . 4 J 1 8 6 . 0 J 0 . 7 0 J No v - 2 0 1 2 0 . 4 8 4.7 J 4 . 6 J 7 . 6 J 8 . 4 J 6 . 7 J 5 . 8 J 4 . 9 J 4 . 6 J 5 . 5 J 4 . 4 J 3 . 1 J 6 . 4 J 4 . 1 J 3 . 3 J 4 . 6 J 4 . 8 J 6 . 5 J 8 . 2 J 1 1 . 0 Ma y - 2 0 1 3 0 . 4 7 0. 7 6 J 2 . 4 J 1 . 2 J 3 . 8 J 1 . 6 J 6 . 1 J 0 . 9 1 J 1 . 0 J 2 . 9 J 3 . 7 J 2 . 1 J 3 . 8 J 1 . 9 J 3 . 5 J 5 . 6 J 4 . 1 J 5 . 2 J 6 . 8 J DRY Ma y - 2 0 1 4 0 . 4 7 0. 8 8 J 1 . 1 J 2 . 6 J 1 . 4 J 1 . 8 J 2 . 0 J 0 . 8 4 J 1 . 9 J 3 . 4 J 3 . 4 J 1 . 3 J 1 . 3 J 2 . 0 J 2 . 4 J 2 . 6 J 9 . 9 J 2 . 3 J 2 . 7 J DRY No v - 2 0 1 4 0 . 5 3 1.2 J 3 . 2 J 2 . 4 J 3 . 0 J 5 0 NS 0. 5 4 J 1 . 4 J 2 . 8 J 1 . 3 J 1 . 4 J 3 . 1 J 1 . 9 J 4 . 6 J 5 . 7 J 3 . 7 J 2 . 0 J 5 . 7 J DRY Ma y - 2 0 1 5 0 . 2 0 3.3 J 0 . 3 7 J 0 . 9 4 J 0 . 2 7 J 8 . 3 J 1 5 2 . 5 J 2 . 5 J 1 . 5 J 2 . 0 J 1 . 1 0 J 3 . 0 J 1 3 . 0 1 . 3 0 J 1 6 . 0 2 . 9 J 3 . 0 J 6 . 4 J 5 . 2 J No v - 2 0 1 5 0 . 2 0 1.7 J 3 . 2 J 1 . 7 J 6 . 9 J 5 . 9 J 6 . 6 J 6 . 2 J 6 . 1 J 1 . 3 J 4 . 8 J 2 . 8 J 4 . 5 J 6 . 0 J 3 . 6 J 3 5 4 . 7 J 4 . 8 J 9 . 4 J 9 . 8 J Ma y - 2 0 1 6 1 . 6 1 3.4 J 2 . 5 J 3 . 8 J 3 . 7 J 3 . 4 J NS 3.2 J 2 . 3 J 1 . 9 J 3 . 1 J 2 . 1 J 1 . 9 J 2 . 0 J 4 . 5 J 1 2 3 . 6 J 2 . 4 J 5 . 2 J 6 . 3 J No v - 2 0 1 6 1 . 6 1 1.8 J 1.6 1 U 2.5 J 2 . 6 J 1 . 8 J NS 1.9 J 2 . 7 J 3 . 5 J 1 . 9 J 1.6 1 U 2.4 J 2 . 0 J 1.6 1 U 6.8 J 2 . 4 J 2 . 9 J 5 . 0 J NS Co m p l i a n c e L i m i t ( µ g / L ) Co m p l i a n c e L i m i t ( µ g / L ) Page 8 of 17 Ta b l e 4 Hi s t o r i c a l G r o u n d w a t e r a n d S u r f a c e W a t e r Q u a l i t y D a t a Co n s t r u c t i o n a n d D e m o l i t i o n D e b r i s ( C & D ) L a n d f i l l ( P e r m i t # 7 4 - 0 7 ) , P i t t C o u n t y , N o r t h C a r o l i n a Pa r a m e t e r :Ac e t o n e C A S N o . 6 7 - 6 4 - 1 Sa m p l e M D L A n a l y t i c a l R e s u l t s ( µ g / L ) Da t e S W S L 2 L S t a n d a r d 2 B S t a n d a r d MW - 1 S M W - 2 S M W - 3 S M W - 3 A M W - 4 M W - 5 M W - 6 M W - 7 M W - 8 M W - 9 A M W - 1 0 M W - 1 1 M W - 1 2 S M W - 1 3 M W - 1 4 S S W - 1 S W - 2 S W - 3 S W - 4 Ja n - 2 0 1 0 1 0 0 6 , 0 0 0 2 , 0 0 0 9 . 0 6 N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D Ma y - 2 0 1 0 9 . 0 6 N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D No v - 2 0 1 0 9 . 0 6 N D N D N D N D N D N D N D N D N D N D N D N D 29 J ND N D N D N D N D N D Ma y - 2 0 1 1 9 . 0 6 N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D No v - 2 0 1 1 9 . 0 6 N D N D N D N D N D N D N D N D N D N D N D N D 10 . 1 0 J ND N D N D N D N D N D Ma y - 2 0 1 2 9 . 0 6 N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D No v - 2 0 1 2 9 . 0 6 N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D Ma y - 2 0 1 3 9 . 0 6 N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D D R Y Ma y - 2 0 1 4 9 . 0 6 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U D R Y No v - 2 0 1 4 9 . 0 6 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U N S 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 12.50 J 9.06 U 9 . 0 6 U D R Y Ma y - 2 0 1 5 9 . 0 6 9 . 0 6 U 9 . 0 6 U 9. 1 0 J 9.0 6 U 9 . 0 6 U 22 . 0 J 9.0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 16 . 4 0 J 9.0 6 U 9 . 0 6 U 9 . 0 6 U 9.20 J 9.06 U 9 . 0 6 U No v - 2 0 1 5 9 . 0 6 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U Ma y - 2 0 1 6 9 . 0 6 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U N S 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U No v - 2 0 1 6 9 . 0 6 9 . 0 6 U 9 . 0 6 U 9. 6 0 J 1 2 . 0 0 J 9.0 6 U N S 9 . 0 6 U 9 . 0 6 U 17 . 2 0 J 9.0 6 U 9 . 0 6 U 9 . 0 6 U 12 . 3 0 J 9.0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U 9 . 0 6 U N S Pa r a m e t e r :Be n z e n e C A S N o . 7 1 - 4 3 - 2 Sa m p l e M D L A n a l y t i c a l R e s u l t s ( µ g / L ) Da t e S W S L 2 L S t a n d a r d 2 B S t a n d a r d MW - 1 S M W - 2 S M W - 3 S M W - 3 A M W - 4 M W - 5 M W - 6 M W - 7 M W - 8 M W - 9 A M W - 1 0 M W - 1 1 M W - 1 2 S M W - 1 3 M W - 1 4 S S W - 1 S W - 2 S W - 3 S W - 4 Ja n - 2 0 1 0 1 1 5 1 0 . 2 4 N D N D 1.3 ND N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D Ma y - 2 0 1 0 0 . 2 4 N D N D 3.1 ND N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D No v - 2 0 1 0 0 . 2 4 0.6 J ND 2.1 0 . 9 0 J ND N D N D N D N D N D N D N D N D N D N D N D N D N D N D Ma y - 2 0 1 1 0 . 2 4 0.3 J ND 1.0 ND N D N D N D N D 0. 4 0 J ND N D N D N D N D N D N D N D N D N D No v - 2 0 1 1 0 . 2 4 N D N D 1.1 0 . 6 0 J ND N D N D N D 0. 4 0 J ND N D N D 0. 3 0 J ND N D N D N D N D N D Ma y - 2 0 1 2 0 . 2 4 N D N D 1.0 0 . 6 0 J ND N D N D N D 1. 1 0 ND N D N D 1. 2 0 ND N D N D N D N D N D No v - 2 0 1 2 0 . 2 4 N D 0.6 J 1 . 2 0 . 7 0 J ND N D N D N D 1. 6 0 ND N D N D 0. 7 0 J ND N D N D N D N D N D Ma y - 2 0 1 3 0 . 2 4 N D N D N D 0. 3 0 J ND N D N D N D N D N D N D N D 1. 1 0 ND 0.40 J ND N D N D D R Y Ma y - 2 0 1 4 0 . 2 4 0 . 2 4 U 0 . 2 4 U 1. 1 0 0.2 4 U 0 . 2 4 U 0 . 2 4 U 0 . 2 4 U 0. 3 0 J 1 . 9 0 0.2 4 U 0 . 2 4 U 0 . 2 4 U 0. 4 0 J 0.2 4 U 0 . 2 4 U 0 . 2 4 U 0 . 2 4 U 0 . 2 4 U D R Y No v - 2 0 1 4 0 . 2 4 0 . 2 4 U 0. 6 0 J 2 . 1 0 0 . 5 0 J 0.2 4 U N S 0 . 2 4 U 0. 3 0 J 0 . 8 0 J 0.2 4 U 0 . 2 4 U 0 . 2 4 U 1. 1 0 0.2 4 U 0.50 J 0.24 U 0 . 2 4 U 0 . 2 4 U D R Y Ma y - 2 0 1 5 0 . 2 4 0 . 2 4 U 0 . 2 4 U 1. 5 0 0.2 4 U 0 . 2 4 U 0 . 2 4 U 0 . 2 4 U 0. 6 0 J 0.2 4 U 0 . 2 4 U 0 . 2 4 U 0 . 2 4 U 0. 5 0 J 0.2 4 U 0 . 2 4 U 0 . 2 4 U 0 . 2 4 U 0 . 2 4 U 0 . 2 4 U No v - 2 0 1 5 0 . 2 4 0 . 2 4 U 0 . 2 4 U 1. 7 0 1 . 7 0 0.2 4 U 0 . 2 4 U 0 . 2 4 U 0 . 2 4 U 0 . 2 4 U 0 . 2 4 U 0 . 2 4 U 0 . 2 4 U 0 . 2 4 U 0 . 2 4 U 0 . 2 4 U 0 . 2 4 U 0 . 2 4 U 0 . 2 4 U 0 . 2 4 U Ma y - 2 0 1 6 0 . 2 4 0 . 2 4 U 0 . 2 4 U 1. 3 0 0.2 4 U 0 . 2 4 U N S 0 . 2 4 U 0. 4 0 J 0 . 9 0 J 0.2 4 U 0. 5 0 J 0.2 4 U 1. 4 0 0.2 4 U 0 . 2 4 U 0 . 2 4 U 0 . 2 4 U 0 . 2 4 U 0 . 2 4 U No v - 2 0 1 6 0 . 2 4 0 . 2 4 U 0 . 2 4 U 1. 2 0 0 . 8 0 J 0.2 4 U N S 0 . 2 4 U 0. 4 0 J 1 . 5 0 0.2 4 U 0. 6 0 J 0.2 4 U 1. 9 0 0.2 4 U 0 . 2 4 U 0 . 2 4 U 0 . 2 4 U 0 . 2 4 U N S Co m p l i a n c e L i m i t ( µ g / L ) Co m p l i a n c e L i m i t ( µ g / L ) Page 9 of 17 Ta b l e 4 Hi s t o r i c a l G r o u n d w a t e r a n d S u r f a c e W a t e r Q u a l i t y D a t a Co n s t r u c t i o n a n d D e m o l i t i o n D e b r i s ( C & D ) L a n d f i l l ( P e r m i t # 7 4 - 0 7 ) , P i t t C o u n t y , N o r t h C a r o l i n a Pa r a m e t e r :2- B u t a n o n e C A S N o . 7 8 - 9 3 - 3 Sa m p l e M D L A n a l y t i c a l R e s u l t s ( µ g / L ) Da t e S W S L 2 L S t a n d a r d 2 B S t a n d a r d MW - 1 S M W - 2 S M W - 3 S M W - 3 A M W - 4 M W - 5 M W - 6 M W - 7 M W - 8 M W - 9 A M W - 1 0 M W - 1 1 M W - 1 2 S M W - 1 3 M W - 1 4 S S W - 1 S W - 2 S W - 3 S W - 4 Ma y - 2 0 1 5 10 0 4 , 0 0 0 16 0 , 0 0 0 2 . 2 1 2 . 2 1 U 2 . 2 1 U 2 . 2 1 U 2 . 2 1 U 2 . 2 1 U 4. 2 0 J 2.2 1 U 2 . 2 1 U 2 . 2 1 U 2 . 2 1 U 2 . 2 1 U 2 . 2 1 U 2 . 2 1 U 2 . 2 1 U 2 . 2 1 U 2 . 2 1 U 2 . 2 1 U 2 . 2 1 U 2 . 2 1 U No v - 2 0 1 5 2 . 2 1 2 . 2 1 U 2 . 2 1 U 2 . 2 1 U 2 . 2 1 U 17 . 7 0 J 2.2 1 U 2 . 2 1 U 2 . 2 1 U 2 . 2 1 U 2 . 2 1 U 2 . 2 1 U 2 . 2 1 U 2 . 2 1 U 2 . 2 1 U 2 . 2 1 U 2 . 2 1 U 2 . 2 1 U 2 . 2 1 U 2 . 2 1 U Ma y - 2 0 1 6 2 . 2 1 2 . 2 1 U 2 . 2 1 U 2 . 2 1 U 2 . 2 1 U 2 . 2 1 U N S 2 . 2 1 U 2 . 2 1 U 2 . 2 1 U 2 . 2 1 U 2 . 2 1 U 2 . 2 1 U 2 . 2 1 U 2 . 2 1 U 2 . 2 1 U 2 . 2 1 U 2 . 2 1 U 2 . 2 1 U 2 . 2 1 U No v - 2 0 1 6 2 . 2 1 2 . 2 1 U 2 . 2 1 U 2 . 2 1 U 2 . 2 1 U 2 . 2 1 U N S 2 . 2 1 U 2 . 2 1 U 2 . 2 1 U 2 . 2 1 U 2 . 2 1 U 2 . 2 1 U 2 . 2 1 U 2 . 2 1 U 2 . 2 1 U 3.20 J 2.21 U 2 . 2 1 U N S Pa r a m e t e r :Ca r b o n D i s u l f i d e C A S N o . 7 5 - 1 5 - 0 Sa m p l e M D L A n a l y t i c a l R e s u l t s ( µ g / L ) Da t e S W S L 2 L S t a n d a r d 2 B S t a n d a r d MW - 1 S M W - 2 S M W - 3 S M W - 3 A M W - 4 M W - 5 M W - 6 M W - 7 M W - 8 M W - 9 A M W - 1 0 M W - 1 1 M W - 1 2 S M W - 1 3 M W - 1 4 S S W - 1 S W - 2 S W - 3 S W - 4 Ma y - 2 0 1 5 10 0 7 0 0 NE ( L D ) 0 . 2 3 0. 4 0 J 0 . 3 0 J 0.2 3 U 0 . 2 3 U 0. 5 0 J 0 . 4 0 J 0 . 3 0 J 0.2 3 U 0 . 2 3 U 0. 4 0 J 0.2 3 U 0. 3 0 J 1 . 3 0 J 0.2 3 U 0.50 J 0.23 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U No v - 2 0 1 5 0 . 2 3 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0. 3 0 J 0.2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U Ma y - 2 0 1 6 0 . 2 3 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U N S 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0. 3 0 J 0.2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U No v - 2 0 1 6 0 . 2 3 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U N S 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U N S Pa r a m e t e r :Ci s - 1 , 2 - D i c h l o r o e t h e n e C A S N o . 1 5 6 - 5 9 - 2 Sa m p l e M D L A n a l y t i c a l R e s u l t s ( µ g / L ) Da t e S W S L 2 L S t a n d a r d 2 B S t a n d a r d MW - 1 S M W - 2 S M W - 3 S M W - 3 A M W - 4 M W - 5 M W - 6 M W - 7 M W - 8 M W - 9 A M W - 1 0 M W - 1 1 M W - 1 2 S M W - 1 3 M W - 1 4 S S W - 1 S W - 2 S W - 3 S W - 4 Ja n - 2 0 1 0 5 7 0 7 2 0 0 . 2 5 N D N D 0.3 J ND N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D Ma y - 2 0 1 0 0 . 2 5 N D N D 0.5 J ND N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D No v - 2 0 1 0 0 . 2 5 N D N D 0.3 J ND N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D Ma y - 2 0 1 1 0 . 2 5 N D N D 0.3 J ND N D N D N D N D 0. 4 0 J ND N D N D 0. 6 0 J ND N D N D N D N D N D No v - 2 0 1 1 0 . 2 5 N D N D N D N D N D N D N D N D N D N D N D N D 1. 2 0 J ND N D N D N D N D N D Ma y - 2 0 1 2 0 . 2 5 N D N D N D N D N D N D N D N D N D N D N D N D 8. 5 0 ND N D N D N D N D N D No v - 2 0 1 2 0 . 2 5 N D N D N D N D N D N D N D N D N D N D N D N D 4. 1 0 J ND N D N D N D N D N D Ma y - 2 0 1 3 0 . 2 5 N D N D N D N D N D N D N D N D N D N D N D N D 5. 9 0 ND 1.40 J ND N D N D D R Y Ma y - 2 0 1 4 0 . 2 5 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0. 7 0 J 0.2 5 U 0.30 J 0.25 U 0 . 2 5 U 0 . 2 5 U D R Y No v - 2 0 1 4 0 . 2 5 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U N S 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 1. 7 0 J 0.2 5 U 1.60 J 0.25 U 0 . 2 5 U 0 . 2 5 U D R Y Ma y - 2 0 1 5 0 . 2 5 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0. 3 0 J 0 . 5 0 J 0.2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U No v - 2 0 1 5 0 . 2 5 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U Ma y - 2 0 1 6 0 . 2 5 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U N S 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0. 5 0 J 0.2 5 U 0. 8 0 J 0.2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U No v - 2 0 1 6 0 . 2 5 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U N S 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0. 4 0 J 0 . 3 0 J 1 . 6 0 J 0.2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U 0 . 2 5 U N S Co m p l i a n c e L i m i t ( µ g / L ) Co m p l i a n c e L i m i t ( µ g / L ) Co m p l i a n c e L i m i t ( µ g / L ) Page 10 of 17 Ta b l e 4 Hi s t o r i c a l G r o u n d w a t e r a n d S u r f a c e W a t e r Q u a l i t y D a t a Co n s t r u c t i o n a n d D e m o l i t i o n D e b r i s ( C & D ) L a n d f i l l ( P e r m i t # 7 4 - 0 7 ) , P i t t C o u n t y , N o r t h C a r o l i n a Pa r a m e t e r :Ch l o r o b e n z e n e C A S N o . 1 0 8 - 9 0 - 7 Sa m p l e M D L A n a l y t i c a l R e s u l t s ( µ g / L ) Da t e S W S L 2 L S t a n d a r d 2 B S t a n d a r d MW - 1 S M W - 2 S M W - 3 S M W - 3 A M W - 4 M W - 5 M W - 6 M W - 7 M W - 8 M W - 9 A M W - 1 0 M W - 1 1 M W - 1 2 S M W - 1 3 M W - 1 4 S S W - 1 S W - 2 S W - 3 S W - 4 Ma y - 2 0 1 4 3 . 0 5 0 1 4 0 0 . 3 0 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 UDRY No v - 2 0 1 4 0 . 3 0 0 . 3 0 U 0 . 3 0 U 0. 3 0 J 0.3 0 U 0 . 3 0 U N S 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U D R Y Ma y - 2 0 1 5 0 . 3 0 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U No v - 2 0 1 5 0 . 3 0 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U Ma y - 2 0 1 6 0 . 3 0 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U N S 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U No v - 2 0 1 6 0 . 3 0 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U N S 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U 0 . 3 0 U D R Y Pa r a m e t e r :Et h y l b e n z e n e C A S N o . 1 0 0 - 4 1 - 4 Sa m p l e M D L A n a l y t i c a l R e s u l t s ( µ g / L ) Da t e S W S L 2 L S t a n d a r d 2 B S t a n d a r d MW - 1 S M W - 2 S M W - 3 S M W - 3 A M W - 4 M W - 5 M W - 6 M W - 7 M W - 8 M W - 9 A M W - 1 0 M W - 1 1 M W - 1 2 S M W - 1 3 M W - 1 4 S S W - 1 S W - 2 S W - 3 S W - 4 Ma y - 2 0 1 4 1 6 0 0 9 7 0 . 2 1 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U D RY No v - 2 0 1 4 0 . 2 1 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U N S 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0. 5 0 J 0.2 1 U 0.60 J 0.21 U 0 . 2 1 U 0 . 2 1 U D R Y Ma y - 2 0 1 5 0 . 2 1 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U No v - 2 0 1 5 0 . 2 1 0 . 2 1 U 0 . 2 1 U 0. 8 0 J 0.2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U Ma y - 2 0 1 6 0 . 2 1 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U N S 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U No v - 2 0 1 6 0 . 2 1 0 . 2 1 U 0 . 2 1 U 0. 3 0 J 0.2 1 U 0 . 2 1 U N S 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U 0 . 2 1 U N S Pa r a m e t e r :Me t h y l e n e C h l o r i d e C A S N o . 7 5 - 0 9 - 2 Sa m p l e M D L A n a l y t i c a l R e s u l t s ( µ g / L ) Da t e S W S L 2 L S t a n d a r d 2 B S t a n d a r d MW - 1 S M W - 2 S M W - 3 S M W - 3 A M W - 4 M W - 5 M W - 6 M W - 7 M W - 8 M W - 9 A M W - 1 0 M W - 1 1 M W - 1 2 S M W - 1 3 M W - 1 4 S S W - 1 S W - 2 S W - 3 S W - 4 Ja n - 2 0 1 0 1 5 5 9 0 0 . 6 4 N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D Ma y - 2 0 1 0 0 . 6 4 N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D No v - 2 0 1 0 0 . 6 4 N D N D N D N D N D N D N D N D N D N D N D N D 11 . 2 ND N D N D N D N D N D Ma y - 2 0 1 1 0 . 6 4 N D N D N D N D N D N D N D N D N D N D N D N D 0. 9 0 J ND N D N D N D N D N D No v - 2 0 1 1 0 . 6 4 N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D Ma y - 2 0 1 2 0 . 6 4 N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D No v - 2 0 1 2 0 . 6 4 N D N D 0. 8 0 J ND N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D Ma y - 2 0 1 3 0 . 6 4 N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D D R Y Ma y - 2 0 1 4 0 . 6 4 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U D R Y No v - 2 0 1 4 0 . 6 4 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U N S 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U D R Y Ma y - 2 0 1 5 0 . 6 4 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U No v - 2 0 1 5 0 . 6 4 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U Ma y - 2 0 1 6 0 . 6 4 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U N S 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U No v - 2 0 1 6 0 . 6 4 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U N S 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U 0 . 6 4 U D R Y Co m p l i a n c e L i m i t ( µ g / L ) Co m p l i a n c e L i m i t ( µ g / L ) Co m p l i a n c e L i m i t ( µ g / L ) Page 11 of 17 Ta b l e 4 Hi s t o r i c a l G r o u n d w a t e r a n d S u r f a c e W a t e r Q u a l i t y D a t a Co n s t r u c t i o n a n d D e m o l i t i o n D e b r i s ( C & D ) L a n d f i l l ( P e r m i t # 7 4 - 0 7 ) , P i t t C o u n t y , N o r t h C a r o l i n a Pa r a m e t e r :Na p h t h a l e n e C A S N o . 9 1 - 2 0 - 3 Sa m p l e M D L A n a l y t i c a l R e s u l t s ( µ g / L ) Da t e S W S L 2 L S t a n d a r d 2 B S t a n d a r d MW - 1 S M W - 2 S M W - 3 S M W - 3 A M W - 4 M W - 5 M W - 6 M W - 7 M W - 8 M W - 9 A M W - 1 0 M W - 1 1 M W - 1 2 S M W - 1 3 M W - 1 4 S S W - 1 S W - 2 S W - 3 S W - 4 No v - 2 0 1 4 1 0 6 1 2 0 . 4 7 0 . 4 7 U N A 2. 9 0 J 0.47 U N A N S N A N A 0 . 4 7 U N A N A N A 0 . 4 7 U N A N A N A N A N A D R Y Ma y - 2 0 1 5 N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A No v - 2 0 1 5 0 . 4 7 0 . 4 7 U N A 0 . 4 7 U 0 . 4 7 U N A N A N A N A 0 . 4 7 U N A N A N A 0 . 4 7 U N A N A N A N A N A N A Ma y - 2 0 1 6 N A N A N A N A N A N A N S N A N A N A N A N A N A N A N A N A N A N A N A N A No v - 2 0 1 6 0 . 4 7 0 . 4 7 U N A 0. 8 0 J 0.4 7 U N A N S N A N A 0 . 4 7 U N A N A N A 0. 6 0 J NA N A N A N A N A D R Y Pa r a m e t e r :St y r e n e C A S N o . 1 0 0 - 4 2 - 5 Sa m p l e M D L A n a l y t i c a l R e s u l t s ( µ g / L ) Da t e S W S L 2 L S t a n d a r d 2 B S t a n d a r d MW - 1 S M W - 2 S M W - 3 S M W - 3 A M W - 4 M W - 5 M W - 6 M W - 7 M W - 8 M W - 9 A M W - 1 0 M W - 1 1 M W - 1 2 S M W - 1 3 M W - 1 4 S S W - 1 S W - 2 S W - 3 S W - 4 Ma y - 2 0 1 5 17 0 NE 0 . 1 9 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U No v - 2 0 1 5 0 . 1 9 0 . 1 9 U 0 . 1 9 U 0. 5 0 J 0.1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U Ma y - 2 0 1 6 0 . 1 9 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0. 3 0 J 0.1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U No v - 2 0 1 6 0 . 1 9 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U N S 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U 0 . 1 9 U D R Y Pa r a m e t e r :Te t r a c h l o r o e t h e n e C A S N o . 1 2 7 - 1 8 - 4 Sa m p l e M D L A n a l y t i c a l R e s u l t s ( µ g / L ) Da t e S W S L 2 L S t a n d a r d 2 B S t a n d a r d MW - 1 S M W - 2 S M W - 3 S M W - 3 A M W - 4 M W - 5 M W - 6 M W - 7 M W - 8 M W - 9 A M W - 1 0 M W - 1 1 M W - 1 2 S M W - 1 3 M W - 1 4 S S W - 1 S W - 2 S W - 3 S W - 4 Ja n - 2 0 1 0 1 0 . 7 3 . 3 0 . 1 7 N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D Ma y - 2 0 1 0 0 . 1 7 N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D No v - 2 0 1 0 0 . 1 7 N D N D N D N D N D N D N D N D N D N D N D N D 0.2 J ND N D N D N D N D N D Ma y - 2 0 1 1 0 . 1 7 N D N D N D N D N D N D N D N D N D N D N D N D 0.2 J ND N D N D N D N D N D No v - 2 0 1 1 0 . 1 7 N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D Ma y - 2 0 1 2 0 . 1 7 N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D No v - 2 0 1 2 0 . 1 7 N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D Ma y - 2 0 1 3 0 . 1 7 N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D D R Y Ma y - 2 0 1 4 0 . 1 7 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U D R Y No v - 2 0 1 4 0 . 1 7 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U N S 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U D R Y Ma y - 2 0 1 5 0 . 1 7 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U No v - 2 0 1 5 0 . 1 7 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U Ma y - 2 0 1 6 0 . 1 7 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U N S 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U No v - 2 0 1 6 0 . 1 7 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U N S 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U 0 . 1 7 U D R Y Co m p l i a n c e L i m i t ( µ g / L ) Co m p l i a n c e L i m i t ( µ g / L ) Co m p l i a n c e L i m i t ( µ g / L ) Page 12 of 17 Ta b l e 4 Hi s t o r i c a l G r o u n d w a t e r a n d S u r f a c e W a t e r Q u a l i t y D a t a Co n s t r u c t i o n a n d D e m o l i t i o n D e b r i s ( C & D ) L a n d f i l l ( P e r m i t # 7 4 - 0 7 ) , P i t t C o u n t y , N o r t h C a r o l i n a Pa r a m e t e r : T e t r a h y d r o f u r a n C A S N o . 1 0 9 - 9 9 - 9 Sa m p l e M D L A n a l y t i c a l R e s u l t s ( µ g / L ) Da t e S W S L 2 L S t a n d a r d 2 B S t a n d a r d MW - 1 S M W - 2 S M W - 3 S M W - 3 A M W - 4 M W - 5 M W - 6 M W - 7 M W - 8 M W - 9 A M W - 1 0 M W - 1 1 M W - 1 2 S M W - 1 3 M W - 1 4 S S W - 1 S W - 2 S W - 3 S W - 4 Ma y - 2 0 1 1 N E N E N E 0 . 3 9 N D 0.7 J 2 . 5 ND N D 0.9 J 2 . 3 0 4 . 5 0 ND N D N D N D N D N D N D N D N D 0.6 J ND No v - 2 0 1 1 0 . 3 9 N D N D 6.7 3 . 3 0 ND N D 1. 9 0 ND 3. 9 0 ND N D N D 4. 2 0 ND 0.9 J ND N D N D N D Ma y - 2 0 1 2 0 . 3 9 1. 8 0 2 . 4 0 4 . 4 5 . 1 0 1 . 4 0 1 . 7 0 2 . 7 0 6 . 4 0 5 . 2 0 ND N D 18 . 4 0 2 . 5 0 ND 14.00 ND N D N D N D No v - 2 0 1 2 0 . 3 9 N D 8. 5 0 4 . 6 3 . 8 0 ND N D N D 1. 2 0 5 . 5 0 ND N D 6. 2 0 1 0 . 9 0 ND 0.70 J ND N D N D N D Ma y - 2 0 1 3 0 . 3 9 N D N D 5.6 2 . 4 0 ND N D 4. 4 0 2 0 . 9 0 5 . 4 0 ND N D N D 3. 3 0 ND 7.40 ND N D N D D R Y Ma y - 2 0 1 4 0 . 3 9 0 . 3 9 U 1.0 6 . 5 0.3 9 U 0 . 3 9 U 0 . 3 9 U 0 . 3 9 U 10 . 8 1 0 . 2 0.3 9 U 0 . 3 9 U 0 . 3 9 U 5. 5 0 0.3 9 U 0.80 J 0.39 U 0 . 3 9 U 0 . 3 9 U D R Y No v - 2 0 1 4 0 . 3 9 0 . 3 9 U 17 . 7 0 1 5 . 6 0 5 . 7 0 0.3 9 U N S 3. 4 0 7 . 1 0 7 . 7 0 0.3 9 U 0 . 3 9 U 2. 7 0 1 0 . 0 0 0.3 9 U 17.30 0.39 U 0 . 3 9 U 0 . 3 9 U D R Y Ma y - 2 0 1 5 0 . 3 9 0 . 3 9 U 0 . 3 9 U 16 . 9 0 0.3 9 U 1. 1 0 0.3 9 U 0. 9 0 J 3 4 . 7 0 4 . 9 0 0.3 9 U 0 . 3 9 U 6. 1 0 7 . 1 0 0.3 9 U 1.00 0.39 U 0 . 3 9 U 0 . 3 9 U 0 . 3 9 U No v - 2 0 1 5 0 . 3 9 0 . 3 9 U 0 . 3 9 U 20 . 9 0 8 . 6 0 0.3 9 U 0. 5 0 J 0.3 9 U 1. 6 0 2 . 6 0 0.3 9 U 0 . 3 9 U 2. 5 0 1 . 8 0 0.3 9 U 0 . 3 9 U 0 . 3 9 U 0 . 3 9 U 0 . 3 9 U 0 . 3 9 U Ma y - 2 0 1 6 0 . 3 9 0 . 3 9 U 0 . 3 9 U 14 . 4 0 1 . 3 0 0.3 9 U N S 8. 2 0 2 9 . 7 0 8 . 1 0 0.3 9 U 14 . 3 0 1 . 5 0 4 6 . 2 0 0.3 9 U 0 . 3 9 U 0 . 3 9 U 0 . 3 9 U 0 . 3 9 U 0 . 3 9 U No v - 2 0 1 6 0 . 3 9 0. 3 9 U 0 . 3 9 U 10 . 6 0 6 . 1 0 0 . 5 0 J NS 5. 6 0 1 6 . 3 0 1 1 . 7 0 0. 3 9 U 8. 8 0 0. 3 9 U 49 . 0 0 0. 3 9 U 0.60 J 0 . 7 0 J 0 . 9 0 J 0.39 U N S Pa r a m e t e r : T r i c h l o r o e t h e n e C A S N o . 7 9 - 0 1 - 6 Sa m p l e M D L A n a l y t i c a l R e s u l t s ( µ g / L ) Da t e S W S L 2 L S t a n d a r d 2 B S t a n d a r d MW - 1 S M W - 2 S M W - 3 S M W - 3 A M W - 4 M W - 5 M W - 6 M W - 7 M W - 8 M W - 9 A M W - 1 0 M W - 1 1 M W - 1 2 S M W - 1 3 M W - 1 4 S S W - 1 S W - 2 S W - 3 S W - 4 Ja n - 2 0 1 0 1 3 3 0 0 . 2 3 N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D Ma y - 2 0 1 0 0 . 2 3 N D N D 0.3 0 J ND N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D No v - 2 0 1 0 0 . 2 3 N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D Ma y - 2 0 1 1 0 . 2 3 N D N D N D N D N D N D N D N D N D N D N D N D 0. 7 0 J ND N D N D N D N D N D No v - 2 0 1 1 0 . 2 3 N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D Ma y - 2 0 1 2 0 . 2 3 N D N D N D N D N D N D N D N D N D N D N D N D 0. 4 0 J ND N D N D N D N D N D No v - 2 0 1 2 0 . 2 3 N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D Ma y - 2 0 1 3 0 . 2 3 N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D D R Y Ma y - 2 0 1 4 0 . 2 3 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U D R Y No v - 2 0 1 4 0 . 2 3 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U N S 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U D R Y Ma y - 2 0 1 5 0 . 2 3 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U No v - 2 0 1 5 0 . 2 3 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U Ma y - 2 0 1 6 0 . 2 3 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U N S 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U No v - 2 0 1 6 0 . 2 3 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U N S 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U D R Y Co m p l i a n c e L i m i t ( µ g / L ) Co m p l i a n c e L i m i t ( µ g / L ) Page 13 of 17 Ta b l e 4 Hi s t o r i c a l G r o u n d w a t e r a n d S u r f a c e W a t e r Q u a l i t y D a t a Co n s t r u c t i o n a n d D e m o l i t i o n D e b r i s ( C & D ) L a n d f i l l ( P e r m i t # 7 4 - 0 7 ) , P i t t C o u n t y , N o r t h C a r o l i n a Pa r a m e t e r : T o l u e n e C A S N o . 1 0 8 - 8 8 - 3 Sa m p l e M D L A n a l y t i c a l R e s u l t s ( µ g / L ) Da t e S W S L 2 L S t a n d a r d 2 B S t a n d a r d MW - 1 S M W - 2 S M W - 3 S M W - 3 A M W - 4 M W - 5 M W - 6 M W - 7 M W - 8 M W - 9 A M W - 1 0 M W - 1 1 M W - 1 2 S M W - 1 3 M W - 1 4 S S W - 1 S W - 2 S W - 3 S W - 4 Ja n - 2 0 1 0 1 6 0 0 1 1 0 . 2 3 N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D Ma y - 2 0 1 0 0 . 2 3 N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D No v - 2 0 1 0 0 . 2 3 N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D 0.30 J ND N D N D Ma y - 2 0 1 1 0 . 2 3 N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D 0.40 J No v - 2 0 1 1 0 . 2 3 N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D 0.40 J 0 . 4 0 J 0 . 4 0 J Ma y - 2 0 1 2 0 . 2 3 N D N D N D N D N D N D N D N D N D N D N D N D 0. 6 0 J ND N D 0.50 J ND N D N D No v - 2 0 1 2 0 . 2 3 N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D Ma y - 2 0 1 3 0 . 2 3 N D N D N D N D N D N D N D N D N D N D N D N D N D N D 0.30 J 0 . 3 0 J 1 . 3 0 ND D R Y Ma y - 2 0 1 4 0 . 2 3 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 3.3 3 . 0 0.23 U D R Y No v - 2 0 1 4 0 . 2 3 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U N S 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0. 3 0 J 0.2 3 U 0 . 2 3 U 0 . 2 3 U 0.30 J 0.23 U D R Y Ma y - 2 0 1 5 0 . 2 3 0 . 2 3 U 0 . 2 3 U 0. 3 0 J 0.2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0. 3 0 J 0.2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U No v - 2 0 1 5 0 . 2 3 0 . 2 3 U 0 . 2 3 U 0. 4 0 J 0.2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U Ma y - 2 0 1 6 0 . 2 3 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U N S 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0. 3 0 J 0.2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U No v - 2 0 1 6 0 . 2 3 0. 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U NS 0. 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 2 3 U 0 . 5 0 J 0 . 2 3 U 0 . 2 3 U 0.23 U 0 . 2 3 U 0 . 2 3 U D R Y Pa r a m e t e r : V i n y l C h l o r i d e C A S N o . 7 5 - 0 1 - 4 Sa m p l e M D L A n a l y t i c a l R e s u l t s ( µ g / L ) Da t e S W S L 2 L S t a n d a r d 2 B S t a n d a r d MW - 1 S M W - 2 S M W - 3 S M W - 3 A M W - 4 M W - 5 M W - 6 M W - 7 M W - 8 M W - 9 A M W - 1 0 M W - 1 1 M W - 1 2 S M W - 1 3 M W - 1 4 S S W - 1 S W - 2 S W - 3 S W - 4 Ja n - 2 0 1 0 1 0 . 0 3 2 . 4 0 . 6 3 N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D Ma y - 2 0 1 0 0 . 6 3 N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D No v - 2 0 1 0 0 . 6 3 N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D Ma y - 2 0 1 1 0 . 6 3 N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D No v - 2 0 1 1 0 . 6 3 N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N D Ma y - 2 0 1 2 0 . 6 3 N D N D N D N D N D N D N D N D N D N D N D N D 0. 8 0 J ND N D N D N D N D N D No v - 2 0 1 2 0 . 6 3 N D N D N D N D N D N D N D N D N D N D N D N D 1. 9 0 ND N D N D N D N D N D Ma y - 2 0 1 3 0 . 6 3 N D N D N D N D N D N D N D N D N D N D N D N D 3.0 ND N D N D N D N D D R Y Ma y - 2 0 1 4 0 . 6 3 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U 1. 1 0 0.6 3 U 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U D R Y No v - 2 0 1 4 0 . 6 3 0 . 6 3 U 0 . 6 3 U 2. 0 0 0.6 3 U 0 . 6 3 U N S 0 . 6 3 U 0 . 6 3 U 1. 4 0 0.6 3 U 0 . 6 3 U 0 . 6 3 U 3. 4 0 0.6 3 U 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U D R Y Ma y - 2 0 1 5 0 . 6 3 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U 1. 7 0 0.6 3 U 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U No v - 2 0 1 5 0 . 6 3 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U 0. 8 0 J 0.6 3 U 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U Ma y - 2 0 1 6 0 . 6 3 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U N S 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U 1. 9 0 0.6 3 U 3. 7 0 0.6 3 U 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U No v - 2 0 1 6 0 . 6 3 0. 6 3 U 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U NS 0. 6 3 U 0 . 6 3 U 0 . 6 3 U 0 . 6 3 U 1. 7 0 0. 6 3 U 4. 3 0 0. 6 3 U 0 . 6 3 U 0.63 U 0 . 6 3 U 0 . 6 3 U D R Y Pa r a m e t e r : X y l e n e s C A S N o . 1 3 3 0 - 2 0 - 7 Sa m p l e M D L A n a l y t i c a l R e s u l t s ( µ g / L ) Da t e S W S L 2 L S t a n d a r d 2 B S t a n d a r d MW - 1 S M W - 2 S M W - 3 S M W - 3 A M W - 4 M W - 5 M W - 6 M W - 7 M W - 8 M W - 9 A M W - 1 0 M W - 1 1 M W - 1 2 S M W - 1 3 M W - 1 4 S S W - 1 S W - 2 S W - 3 S W - 4 Ma y - 2 0 1 4 5 5 0 0 6 7 0 0 . 6 8 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U DRY No v - 2 0 1 4 0 . 6 8 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U N S 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0. 9 0 J 0.6 8 U 0.90 J 0.68 U 0 . 6 8 U 0 . 6 8 U D R Y Ma y - 2 0 1 5 0 . 6 8 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U No v - 2 0 1 5 0 . 6 8 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U Ma y - 2 0 1 6 0 . 6 8 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U N S 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U No v - 2 0 1 6 0 . 6 8 0. 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U NS 0. 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0 . 6 8 U 0.7 0 J 0. 6 8 U 0 . 6 8 U 0.68 U 0 . 6 8 U 0 . 6 8 U D R Y Co m p l i a n c e L i m i t ( µ g / L ) Co m p l i a n c e L i m i t ( µ g / L ) Co m p l i a n c e L i m i t ( µ g / L ) Page 14 of 17 Ta b l e 4 Hi s t o r i c a l G r o u n d w a t e r a n d S u r f a c e W a t e r Q u a l i t y D a t a Co n s t r u c t i o n a n d D e m o l i t i o n D e b r i s ( C & D ) L a n d f i l l ( P e r m i t # 7 4 - 0 7 ) , P i t t C o u n t y , N o r t h C a r o l i n a Pa r a m e t e r :Su l f i d e C A S N o . 1 8 4 9 6 - 2 5 - 8 Sa m p l e M D L A n a l y t i c a l R e s u l t s ( µ g / L ) Da t e S W S L 2 L S t a n d a r d 2 B S t a n d a r d MW - 1 S M W - 2 S M W - 3 S M W - 3 A M W - 4 M W - 5 M W - 6 M W - 7 M W - 8 M W - 9 A M W - 1 0 M W - 1 1 M W - 1 2 S M W - 1 3 M W - 1 4 S S W - 1 S W - 2 S W - 3 S W - 4 Ja n - 2 0 1 0 1 , 0 0 0 N E 0 . 2 1 1 0 0 N A N A N D N D N A N A N A N A N D N A N A N A N A N A N A N A N A N A N A Ma y - 2 0 1 0 1 0 0 N A N A N D N D N A N A N A N A N D N A N A N A N A N A N A N A N A N A N A No v - 2 0 1 0 1 0 0 N A N A 1,3 8 0 ND N A N A N A N A N D N A N A N A N A N A N A N A N A N A N A Ma y - 2 0 1 1 1 0 0 N A N A 54 4 J ND N A N A N A N A N D N A N A N A N A N A N A N A N A N A N A No v - 2 0 1 1 1 0 0 N A N A 2,7 9 5 ND N A N A N A N A N D N A N A N A N A N A N A N A N A N A N A Ma y - 2 0 1 2 1 0 0 N A N A 13 7 J ND N A N A N A N A N D N A N A N A N A N A N A N A N A N A N A No v - 2 0 1 2 1 0 0 N A N A 64 4 J ND N A N A N A N A N D N A N A N A N A N A N A N A N A N A N A Ma y - 2 0 1 3 1 0 0 N D N A 27 2 J ND N A N A N A N A N D N A N A N A N A N A N A N A N A N A D R Y Ma y - 2 0 1 4 1 0 0 1 0 0 U N A 46 7 J 10 0 U N A N A N A N A 1 0 0 U N A N A N A 23 0 J NA N A N A N A N A D R Y No v - 2 0 1 4 1 0 0 1 0 0 U N A 1 0 0 U 1 0 0 U N A N S N A N A 1 0 0 U N A N A N A 1 0 0 U N A N A N A N A N A D R Y Ma y - 2 0 1 5 1 0 0 10 4 J NA 1 0 0 U 1 0 0 U N A N A N A N A 1 0 0 U N A N A N A 1 0 0 U N A N A N A N A N A N A No v - 2 0 1 5 1 0 0 1 0 0 U N A 1 0 0 U 1 0 0 U N A N A N A N A 1 0 0 U N A N A N A 1 0 0 U N A N A N A N A N A N A Ma y - 2 0 1 6 1 0 0 1 0 0 U N A 1 0 0 U 1 0 0 U N A N S N A N A 1 0 0 U N A N A N A 34 6 J NA N A N A N A N A N A No v - 2 0 1 6 1 0 0 1 0 0 U N A 1 0 0 U 1 0 0 U N A N S N A N A 1 0 0 U N A N A N A 24 0 J NA N A N A N A N A D R Y Pa r a m e t e r :pH ( f i e l d ) Sa m p l e Da t e S W S L 2 L S t a n d a r d 2 B S t a n d a r d MW - 1 S M W - 2 S M W - 3 S M W - 3 A M W - 4 M W - 5 M W - 6 M W - 7 M W - 8 M W - 9 A M W - 1 0 M W - 1 1 M W - 1 2 S M W - 1 3 M W - 1 4 S S W - 1 S W - 2 S W - 3 S W - 4 Ja n - 2 0 1 0 N E 6 . 5 - 8 . 5 6 . 0 - 9 . 0 5 . 8 5 . 8 6 . 4 6 . 5 6 . 0 6 . 2 5 . 7 5 . 7 6 . 2 7 . 1 5 . 8 6 . 4 5 . 7 5 . 1 5 . 7 5 . 5 6 . 7 6 . 0 5 . 6 Ma y - 2 0 1 0 6 . 7 5 . 8 6 . 5 6 . 9 6 . 2 6 . 7 6 . 6 6 . 5 6 . 3 7 . 4 7 . 2 7 . 3 7 . 0 5 . 3 7 . 2 6 . 0 6 . 8 6 . 8 6 . 7 No v - 2 0 1 0 6 . 1 5 . 9 6 . 5 6 . 6 6 . 1 6 . 0 6 . 8 6 . 8 6 . 5 7 . 2 7 . 1 7 . 3 6 . 3 5 . 6 6 . 6 6 . 1 6 . 4 7 . 3 6 . 5 Ma y - 2 0 1 1 6 . 1 5 . 9 6 . 5 6 . 6 6 . 0 6 . 6 6 . 7 6 . 3 6 . 4 7 . 3 6 . 7 7 . 2 6 . 4 5 . 9 5 . 7 6 . 0 6 . 7 6 . 8 6 . 5 No v - 2 0 1 1 6 . 1 5 . 8 6 . 4 6 . 5 6 . 1 6 . 5 6 . 6 6 . 5 6 . 4 7 . 4 6 . 9 7 . 2 7 . 5 5 . 7 6 . 1 6 . 0 6 . 8 6 . 5 6 . 5 Ma y - 2 0 1 2 6 . 2 5 . 9 6 . 4 6 . 4 6 . 0 6 . 7 6 . 6 6 . 3 6 . 3 7 . 2 6 . 5 6 . 7 6 . 2 5 . 8 6 . 1 5 . 9 6 . 6 6 . 6 6 . 3 No v - 2 0 1 2 6 . 3 6 . 4 6 . 5 6 . 4 6 . 1 6 . 9 6 . 5 6 . 6 6 . 5 7 . 4 6 . 7 6 . 6 6 . 5 5 . 9 5 . 5 6 . 2 6 . 9 7 . 0 6 . 3 Ma y - 2 0 1 3 6 . 0 5 . 9 6 . 5 6 . 5 6 . 0 7 . 0 6 . 6 6 . 7 7 . 0 7 . 4 6 . 5 6 . 9 6 . 4 5 . 6 5 . 2 6 . 2 6 . 7 6 . 1 D R Y Ma y - 2 0 1 4 6 . 1 6 . 4 6 . 4 6 . 3 6 . 3 6 . 7 6 . 0 6 . 5 6 . 2 7 . 3 5 . 6 7 . 3 6 . 3 5 . 8 5 . 9 6 . 1 6 . 7 6 . 1 D R Y No v - 2 0 1 4 6 . 6 6 . 6 6 . 6 6 . 5 6 . 2 N S 6 . 7 6 . 8 6 . 6 7 . 3 5 . 9 6 . 6 6 . 6 5 . 4 5 . 8 7 . 0 7 . 1 5 . 9 D R Y Ma y - 2 0 1 5 6 . 3 5 . 4 6 . 6 6 . 3 6 . 7 7 . 1 6 . 4 6 . 8 6 . 3 7 . 4 5 . 6 6 . 1 6 . 4 6 . 1 6 . 2 6 . 8 6 . 9 6 . 8 7 . 1 No v - 2 0 1 5 6 . 4 5 . 8 6 . 7 6 . 5 6 . 1 6 . 6 6 . 6 6 . 9 6 . 1 7 . 2 5 . 6 6 . 2 6 . 1 5 . 9 6 . 4 6 . 8 6 . 8 6 . 8 6 . 4 Ma y - 2 0 1 6 6 . 6 5 . 6 6 . 7 6 . 8 6 . 3 N S 6 . 7 6 . 8 6 . 8 7 . 6 6 . 1 6 . 9 6 . 6 6 . 2 6 . 5 6 . 5 6 . 7 6 . 7 6 . 8 No v - 2 0 1 6 6.6 6 . 4 6 . 8 6 . 8 6 . 5 NS 6.8 6 . 7 6 . 7 7 . 1 6 . 3 6 . 5 6 . 6 6 . 3 6 . 4 7 . 1 7 . 1 7 . 1 N S Co m p l i a n c e L i m i t ( S . U . ) Re s u l t s ( S . U . = S t a n d a r d U n i t s ) Co m p l i a n c e L i m i t ( µ g / L ) Page 15 of 17 Ta b l e 4 Hi s t o r i c a l G r o u n d w a t e r a n d S u r f a c e W a t e r Q u a l i t y D a t a Co n s t r u c t i o n a n d D e m o l i t i o n D e b r i s ( C & D ) L a n d f i l l ( P e r m i t # 7 4 - 0 7 ) , P i t t C o u n t y , N o r t h C a r o l i n a Pa r a m e t e r :Co n d u c t i v i t y ( f i e l d ) Sa m p l e Da t e S W S L 2 L S t a n d a r d 2 B S t a n d a r d MW - 1 S M W - 2 S M W - 3 S M W - 3 A M W - 4 M W - 5 M W - 6 M W - 7 M W - 8 M W - 9 A M W - 1 0 M W - 1 1 M W - 1 2 S M W - 1 3 M W - 1 4 S S W - 1 S W - 2 S W - 3 S W - 4 Ja n - 2 0 1 0 N E N E N E 9 5 6 4 6 3 1 , 6 4 7 6 5 6 2 4 6 9 5 1 3 5 6 2 2 2 1 , 0 6 5 3 9 8 1 2 7 6 3 2 2 9 6 2 6 2 1 0 9 1 2 6 2 3 4 1 6 6 1 6 2 Ma y - 2 0 1 0 9 1 6 3 8 0 3 , 1 0 5 4 7 5 5 1 5 1 , 5 8 7 1 , 8 0 2 2 , 1 2 9 1 , 6 1 9 4 1 1 3 5 6 5 7 7 4 2 1 1 7 1 4 0 8 1 1 4 2 8 5 1 8 8 1 7 1 No v - 2 0 1 0 7 6 3 1 , 0 6 9 1 , 4 0 1 1 , 1 3 5 4 7 7 1 , 6 2 6 9 5 1 3 3 7 1 , 1 2 5 5 2 3 4 7 9 4 9 8 7 9 9 3 5 6 4 9 0 1 1 2 3 1 2 1 5 2 1 1 7 Ma y - 2 0 1 1 6 7 4 1 , 4 9 4 1 , 9 5 4 5 6 7 6 0 7 2 , 2 9 0 1 , 1 5 9 1 , 2 4 7 1 , 8 1 6 4 1 1 8 8 9 6 0 0 1 , 5 2 2 4 2 2 3 6 9 1 2 9 1 8 3 4 1 2 1 4 9 No v - 2 0 1 1 7 8 2 1 , 8 8 0 4 0 2 1 , 6 7 7 5 5 1 3 , 0 0 4 1 , 1 6 6 6 8 1 1 , 6 0 3 7 9 4 7 9 4 4 7 4 1 , 8 6 7 2 6 7 7 2 1 1 1 4 2 1 9 1 9 9 1 3 6 Ma y - 2 0 1 2 9 1 8 1 , 9 9 0 1 , 5 5 3 1 , 7 4 6 9 3 0 1 , 5 6 9 1 , 1 1 1 1 , 4 7 1 1 , 5 4 6 3 9 7 9 4 3 8 4 4 1 , 8 6 1 3 8 5 1 , 1 5 7 1 2 3 3 4 8 1 6 0 1 0 7 No v - 2 0 1 2 7 , 0 0 7 1 , 8 5 3 1 , 6 7 6 2 , 0 6 1 5 0 8 1 , 2 1 5 2 9 5 9 1 1 2 , 0 7 0 3 6 3 8 7 7 7 0 6 1 , 6 7 8 3 6 1 3 2 4 1 0 8 3 2 8 2 9 5 1 5 2 Ma y - 2 0 1 3 5 0 1 1 , 4 0 4 1 , 2 2 3 1 , 3 3 0 4 8 0 1 , 2 9 4 1 , 1 9 8 2 , 5 2 0 3 , 0 9 0 3 5 6 1 , 1 4 0 8 6 4 1 , 6 1 2 2 7 1 1 , 5 1 9 1 2 4 2 3 7 7 1 D R Y Ma y - 2 0 1 4 3 7 7 1 , 0 6 0 1 , 4 2 4 2 5 8 3 8 9 5 7 3 2 7 5 2 , 5 3 0 3 , 3 8 0 3 4 9 4 3 4 8 2 6 1 , 6 9 4 2 5 3 5 6 2 8 6 3 3 3 8 6 D R Y No v - 2 0 1 4 8 7 1 2 , 8 8 0 2 , 8 7 0 2 , 4 0 0 3 9 7 N S 1 , 0 3 9 2 , 5 6 0 3 , 6 5 0 3 7 4 9 9 0 8 1 7 2 , 5 9 0 1 9 4 2 , 1 9 0 2 8 1 3 0 6 1 6 0 D R Y Ma y - 2 0 1 5 4 0 1 1 3 5 2 , 2 1 0 1 2 1 6 7 1 1 , 3 8 5 7 7 0 2 , 9 6 0 1 , 2 1 2 3 6 0 4 8 7 1 , 0 2 3 1 , 2 6 6 3 6 7 2 3 0 2 1 8 2 2 9 9 1 1 6 0 No v - 2 0 1 5 5 0 7 3 9 4 3 , 0 1 0 1 , 9 7 8 5 1 4 1 , 5 0 3 4 0 0 1 , 6 2 1 6 6 5 3 6 5 6 3 0 7 4 3 5 7 7 4 1 5 1 3 8 2 9 2 1 5 3 1 9 1 1 2 7 Ma y - 2 0 1 6 4 2 5 4 2 0 3 , 3 7 0 6 5 0 3 5 7 N S 1 , 6 2 4 3 , 3 1 0 3 , 1 2 0 3 6 3 1 , 2 8 6 8 5 3 3 , 0 0 0 3 2 1 2 0 9 2 0 3 2 1 9 1 9 0 1 5 9 No v - 2 0 1 6 7 3 0 6 4 9 3 , 1 4 0 1 , 6 5 3 5 7 9 N S 1 , 2 4 6 1 , 9 6 1 2 , 5 5 0 4 0 4 1 , 5 1 0 9 5 7 2 , 7 8 0 4 9 6 3 5 2 2 3 5 3 1 8 1 8 9 N S Pa r a m e t e r :Tu r b i d i t y ( f i e l d ) Sa m p l e Da t e S W S L 2 L S t a n d a r d 2 B S t a n d a r d MW - 1 S M W - 2 S M W - 3 S M W - 3 A M W - 4 M W - 5 M W - 6 M W - 7 M W - 8 M W - 9 A M W - 1 0 M W - 1 1 M W - 1 2 S M W - 1 3 M W - 1 4 S S W - 1 S W - 2 S W - 3 S W - 4 Ja n - 2 0 1 0 N E N E 5 0 1 5 0 4 7 < 1 5 5 3 0 0 1 1 0 1 7 3 5 1 3 5 N M N M N M N M N M N M N M N M N M N M Ma y - 2 0 1 0 8 0 3 5 3 3 0 1 8 1 3 0 4 0 3 5 6 5 1 4 0 N M N M N M N M N M N M N M N M N M N M No v - 2 0 1 0 3 8 1 9 1 9 0 4 5 1 7 0 2 5 1 5 2 5 6 0 N M N M N M N M N M N M N M N M N M N M Ma y - 2 0 1 1 1 8 2 4 2 7 0 9 5 1 1 0 2 0 0 1 4 3 4 3 3 0 N M N M N M N M N M N M N M N M N M N M No v - 2 0 1 1 3 1 1 7 1 7 0 1 4 0 1 5 0 2 0 1 6 2 5 3 2 0 N M N M N M N M N M N M N M N M N M N M Ma y - 2 0 1 2 1 4 7 5 2 8 0 8 0 3 3 1 9 0 1 1 3 5 4 5 0 N M N M N M N M N M N M N M N M N M N M No v - 2 0 1 2 1 8 1 5 0 4 0 0 3 6 0 7 0 2 3 2 3 7 . 5 4 0 0 N M N M N M N M N M N M N M N M N M N M Ma y - 2 0 1 3 8 7 2 6 1 7 66 5 4 N M N M N M N M N M N M N M N M N M D R Y Ma y - 2 0 1 4 2 . 5 6 3 . 0 3 4 . 5 8 1 . 7 6 3 6 . 5 1 1 7 1 . 9 2 6 . 6 1 2 1 . 1 3 0 . 3 1 9 . 8 1 . 9 5 3 . 3 9 1 3 . 0 3 . 0 3 5 4 . 3 1 0 . 7 3 1 . 9 D R Y No v - 2 0 1 4 1 . 3 9 2 8 . 1 1 . 8 1 2 . 5 0 7 . 2 2 N S 4 . 5 1 3 . 1 9 1 . 6 3 1 5 . 9 3 . 1 7 2 . 0 7 3 . 3 1 1 6 . 3 3 . 0 2 1 4 . 4 8 . 7 2 1 5 . 2 D R Y Ma y - 2 0 1 5 1 . 7 8 2 . 9 7 7 . 6 9 2 . 4 5 6 2 . 7 2 0 . 9 3 . 1 1 7 . 2 9 2 . 0 8 2 . 5 3 1 7 . 6 6 . 4 6 2 . 9 4 2 . 0 1 1 8 . 5 1 8 . 2 1 1 . 2 4 4 . 5 1 4 . 9 No v - 2 0 1 5 3 . 6 3 3 0 . 6 2 . 6 1 7 . 3 2 2 2 . 0 6 . 3 2 1 0 . 1 9 . 1 2 4 . 3 9 1 2 5 4 . 4 7 1 . 3 0 2 0 . 0 1 8 . 4 3 9 3 9 . 5 2 2 7 . 4 2 4 . 8 1 4 . 5 Ma y - 2 0 1 6 7 . 9 5 2 . 8 6 6 . 5 2 2 7 . 3 3 . 7 2 N S 2 9 . 2 8 . 8 6 1 1 . 6 1 2 3 5 . 5 5 1 2 . 0 3 . 0 2 6 2 . 8 8 4 . 2 1 1 . 7 6 . 6 7 2 4 . 0 8 . 9 2 No v - 2 0 1 6 13 . 1 3 . 9 0 6 . 3 8 1 2 . 9 3 . 1 5 NS 23 . 4 4 . 4 1 2 2 . 2 4 0 . 9 1 . 1 0 7 . 9 2 < 1 1 . 7 1 1 8 . 6 6 . 0 3 4 . 3 2 1 8 . 3 N S Co m p l i a n c e L i m i t ( µ S / c m ) Co m p l i a n c e L i m i t ( N T U ) Re s u l t s ( µ S / c m = m i c r o s i e m e n s p e r c e n t i m e t e r ) Re s u l t s ( N T U = N e p h e l o m e t r i c T u r b i d i t y U n i t s ) Page 16 of 17 Ta b l e 4 Hi s t o r i c a l G r o u n d w a t e r a n d S u r f a c e W a t e r Q u a l i t y D a t a Co n s t r u c t i o n a n d D e m o l i t i o n D e b r i s ( C & D ) L a n d f i l l ( P e r m i t # 7 4 - 0 7 ) , P i t t C o u n t y , N o r t h C a r o l i n a Pa r a m e t e r :Gr o u n d w a t e r E l e v a t i o n Sa m p l e Da t e S W S L 2 L S t a n d a r d 2 B S t a n d a r d MW - 1 S M W - 2 S M W - 3 S M W - 3 A M W - 4 M W - 5 M W - 6 M W - 7 M W - 8 M W - 9 A M W - 1 0 M W - 1 1 M W - 1 2 S M W - 1 3 M W - 1 4 S Ja n - 2 0 1 0 13 . 7 4 1 1 . 6 5 1 1 . 4 2 1 1 . 1 2 1 2 . 1 9 1 2 . 0 4 1 1 . 0 7 1 1 . 6 0 1 1 . 7 0 1 4 . 9 4 1 3 . 6 1 1 1 . 5 2 1 1 . 7 1 1 2 . 4 5 1 2 . 5 1 Ma y - 2 0 1 0 11 . 8 7 1 0 . 8 3 1 0 . 7 0 1 0 . 3 6 1 1 . 6 2 1 1 . 3 3 1 0 . 6 4 1 1 . 0 6 1 2 . 7 4 1 3 . 7 6 1 2 . 5 0 1 1 . 0 2 1 2 . 0 3 1 1 . 2 2 1 1 . 4 1 No v - 2 0 1 0 12 . 7 1 1 1 . 4 3 1 1 . 1 4 1 0 . 6 1 1 1 . 6 1 1 1 . 7 0 1 0 . 8 8 1 1 . 2 4 1 1 . 6 2 1 4 . 5 0 1 2 . 7 8 8 . 3 5 1 1 . 2 5 1 2 . 4 4 1 2 . 5 9 Ma y - 2 0 1 1 11 . 9 7 1 0 . 5 6 1 0 . 7 1 1 0 . 3 9 1 1 . 4 9 1 1 . 1 9 1 0 . 4 0 1 0 . 8 5 1 1 . 2 5 1 3 . 5 7 1 2 . 3 3 1 0 . 2 6 1 1 . 0 0 1 2 . 0 1 1 2 . 0 3 No v - 2 0 1 1 12 . 7 1 1 1 . 8 8 1 1 . 2 9 1 0 . 8 3 1 1 . 9 2 1 1 . 6 4 1 0 . 6 1 1 1 . 1 4 1 1 . 7 6 1 4 . 4 6 1 2 . 6 9 1 1 . 2 4 1 1 . 5 1 1 2 . 1 0 1 2 . 0 3 Ma y - 2 0 1 2 12 . 0 4 1 0 . 4 3 1 0 . 5 3 1 0 . 3 1 1 1 . 4 9 1 1 . 1 0 1 0 . 3 0 1 0 . 7 9 1 1 . 3 6 1 3 . 6 7 1 2 . 2 1 1 0 . 3 3 1 1 . 0 6 1 1 . 8 6 1 1 . 9 9 No v - 2 0 1 2 12 . 7 1 1 0 . 5 0 1 0 . 6 8 1 0 . 5 0 1 1 . 8 0 1 1 . 3 2 1 0 . 4 9 1 0 . 7 9 1 1 . 4 9 1 4 . 6 0 1 2 . 6 8 1 0 . 9 4 1 0 . 7 0 1 1 . 5 1 1 1 . 4 9 Ma y - 2 0 1 3 12 . 5 5 1 0 . 7 1 1 0 . 9 0 1 0 . 4 2 1 1 . 8 5 1 1 . 4 5 1 0 . 4 4 1 1 . 0 8 1 1 . 5 8 1 3 . 9 9 1 2 . 2 8 1 0 . 3 2 1 0 . 5 0 1 0 . 7 7 1 1 . 0 0 Ma y - 2 0 1 4 13 . 3 1 1 1 . 4 3 1 1 . 5 5 1 1 . 1 3 1 1 . 8 6 1 1 . 6 0 1 1 . 1 3 1 1 . 7 0 1 2 . 2 7 1 3 . 9 7 1 2 . 6 8 1 0 . 8 2 1 0 . 9 3 1 1 . 2 9 1 1 . 4 9 No v - 2 0 1 4 12 . 1 7 1 0 . 3 3 1 0 . 3 8 1 0 . 0 3 1 1 . 7 0 NS 10 . 6 8 1 1 . 7 5 1 1 . 2 1 1 4 . 3 9 1 2 . 5 9 1 1 . 1 5 1 0 . 5 8 1 0 . 5 7 1 0 . 8 4 Ma y - 2 0 1 5 14 . 2 1 1 2 . 1 4 1 2 . 2 1 1 1 . 7 3 1 2 . 0 3 1 3 . 0 8 1 1 . 5 8 1 1 . 8 9 1 2 . 8 0 1 4 . 4 7 1 3 . 2 0 1 1 . 2 3 1 1 . 3 2 1 1 . 6 9 1 1 . 8 6 No v - 2 0 1 5 15 . 7 1 1 1 . 8 4 1 2 . 0 8 1 1 . 6 6 1 2 . 5 9 1 3 . 4 7 1 1 . 4 9 1 2 . 0 2 1 2 . 7 4 1 5 . 4 6 1 4 . 0 5 1 2 . 0 6 1 1 . 9 8 1 2 . 2 4 1 2 . 7 0 Ma y - 2 0 1 6 14 . 4 8 1 1 . 7 3 1 2 . 1 1 1 1 . 8 1 1 2 . 2 6 NS 11 . 5 0 1 1 . 9 8 1 2 . 6 2 1 4 . 5 8 1 3 . 4 2 1 1 . 4 7 1 1 . 6 4 1 2 . 3 3 1 2 . 6 5 No v - 2 0 1 6 13 . 8 1 1 1 . 9 4 1 1 . 9 9 1 1 . 5 3 1 1 . 8 7 NS 11 . 7 1 1 1 . 9 5 1 2 . 7 8 1 4 . 4 7 1 3 . 4 2 1 1 . 2 9 1 1 . 3 8 1 2 . 1 7 1 2 . 0 9 NO T E S : 1. T h i s t a b l e s h o w s h i s t o r i c a l l y d e t e c t e d c o n s t i t u e n t s o n l y , i n e i t h e r g r o u n d w a t e r o r s u r f a c e w a t e r s a m p l e s . His t o r i c a l d a t a i s t a k e n f r o m J u l y 2 0 1 3 W a t e r Q u a l i t y M o n i t o r i n g R e p o r t f o r M a y 2 0 1 3 p r e p a r e d b y D a v i d G a r r e t t & A s s o c i a t e s E n g in e e r i n g a n d G e o l o g y . 2. M W - 1 S t h r o u g h M W - 1 4 S i n d i c a t e P h a s e 1 a n d P h a s e 2 m o n i t o r i n g g r o u n d w a t e r w e l l s . S W - 1 t h r o u g h S W - 4 i n d i c a t e s u r f a c e w a t e r s a m p lin g l o c a t i o n s . 3. P h a s e 1 m o n i t o r i n g w e l l s a r e a s f o l l o w s : M W - 1 S , M W - 2 S , M W - 4 , M W - 5 , M W - 6 , M W - 7 ( d e t e c t i o n m o n i t o r i n g p r o g r a m ) a n d M W - 3 S , M W - 3 A a n d M W - 8 ( d e t e c t i o n a n d a s s e s s m e n t m o n i t o r i n g p r o g r a m ) . 4. P h a s e 2 m o n i t o r i n g w e l l s a r e a s f o l l o w s : M W - 9 A ( b a c k g r o u n d w e l l ) , M W - 1 0 , M W - 1 1 , M W - 1 2 S , M W - 1 3 , a n d M W - 1 4 S ( d e t e c t i o n m o n i t o r i ng p r o g r a m ) . 5. C o m p l i a n c e L i m i t = S W S L o r 2 L o r 2 B S t a n d a r d . 6. S W S L = S o l i d W a s t e S e c t i o n L i m i t ( J u n e 1 3 , 2 0 1 1 ) . 7. µ g / L = m i c r o g r a m s p e r l i t e r . m g / L = m i l l i g r a m s p e r l i t e r . 8. 2 L S t a n d a r d = N C A C T i t l e 1 5 A S u b c h a p t e r 2 L C l a s s i f i c a t i o n s a n d W a t e r Q u a l i t y S t a n d a r d s A p p l i c a b l e t o t h e G W s o f N o r t h C a r o l i n a ( A p r i l 1 , 2 0 1 3 ) . 9. 2 B S t a n d a r d = S t a n d a r d s , c r i t e r i a , o r t o x i c c o n c e n t r a t i o n s e i t h e r a d o p t e d p e r 1 5 A N C A C 2 B o r N a t i o n a l C r i t e r i a p e r E P A ( C u r r e nt a s o f 5 / 1 5 / 2 0 1 3 ) . 10 . M D L = M e t h o d D e t e c t i o n L i m i t . 11 . N D o r N D < U = n o t d e t e c t e d a b o v e t h e m e t h o d d e t e c t i o n l i m i t ( M D L ) . 12 . J i n d i c a t e s t h e d e t e c t e d r e s u l t i s a b o v e M D L a n d b e l o w t h e S W S L . U i n d i c a t e s c o n c e n t r a t i o n b e l o w M D L a n d M R L ; n o n - d e t e c t . 13 . N A = N o t A n a l y z e d o r N o t A p p l i c a b l e . N E = N o t E s t a b l i s h e d . N S = N o t S a m p l e d . 14 . Bo l d f o n t in d i c a t e s a n a l y te d e t e c t i o n a b o v e M D L . 15 . Sh a d e d f i e l d de n o t e s r e s u l t t h a t w a s a t o r a b o v e t h e a pp lic a b l e C o m p lia n c e L i m i t . 16 . B l a n k c e l l s i n d i c a t e t h a t t h e r e i s n o r e l e v a n t i n f o r m a t i o n a v a i l a b l e . Ele v a t i o n ( f e e t ) No t A p p l i c a b l e Co m p l i a n c e L i m i t Page 17 of 17 C&D Landfill, Water Quality Monitoring Report November 2016 Semiannual Sampling Event ATTACHMENT 1 Environment 1, Incorporated Laboratory Field and Analytical Results Report C&D Landfill, Water Quality Monitoring Report November 2016 Semiannual Sampling Event ATTACHMENT 2 Environmental Monitoring Reporting Form and Electronic Data Deliverables (EDDs; Electronic Files Only)