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Home My WebLink AboutCCB0057_Nash_Reuse_SwiftCreek_StructuralFill_Nov2020GW_FID1577061_20210415ReUse Technology Water Quality Monitoring Report - November 2020 Battleboro, Nash County North Carolina March 2, 2021 Project No.: 0397281 The business of sustainability Water Quality Monitoring Report - November 2020 Swift Creek CCB Structural Fill — CCB0057 Battleboro, Nash County North Carolina Chris Means, Thomas M. Wilson, P.G. Project Manager Principal -in -Charge SE AIL �➢ 13 ERM NC, Inc. 300 West Summit Avenue Suite 330 Charlotte, North Carolina 28203 Phone: +1-704-541-8345 © Copyright 2021 by ERM Worldwide Group Ltd and / or its affiliates ("ERM"). All rights reserved. No part of this work may be reproduced or transmitted in any form, or by any means, without the prior written permission of ERM www.erm.com Version: 1.0 Project No.: 0397281 Client: ReUse Technology March 2, 2021 WATER QUALITY MONITORING REPORT — NOVEMBER 2020 Battleboro, Nash County CONTENTS CONTENTS 1. INTRODUCTION AND SITE HISTORY.............................................................................................1 1.1 Introduction...........................................................................................................................................1 1.2 Summary of Site Environmental History and Corrective Action............................................................1 2. CONCEPTUAL SITE MODEL............................................................................................................3 2.1 Hydrogeology........................................................................................................................................3 2.2 Contaminant Fate and Transport..........................................................................................................3 3. WATER QUALITY MONITORING ACTIVITIES................................................................................4 3.1 Objectives.............................................................................................................................................4 3.2 Monitoring Methods..............................................................................................................................5 4. MONITORING RESULTS............................................................................................................6 4.1 Groundwater Monitoring Results..........................................................................................................6 4.2 Surface Water Monitoring Results........................................................................................................8 4.3 Laboratory Data Quality Analysis..........................................................................................................8 5. SUMMARY......................................................................................................................................... 9 APPENDIX A HISTORICAL GROUNDWATER AND SURFACE WATER RESULTS APPENDIX B FIELD SHEETS APPENDIX C LABORATORY DATA List of Figures Figure1 Site Location Map.................................................................................................................. Figure 2 Site Map and Monitor Well Locations.................................................................................... Figure 3 Shallow Groundwater Potentiometric Map — November 2020............................................... Figure 4 Groundwater Analyses - Constituents Exceeding 2L Groundwater Standards — November 2020....................................................................................................................................... Figure 5 Groundwater Analyses — Sulfate — Surficial Aquifer.............................................................. Figure 6 Hydrogeologic Profile A-A...................................................................................................... Figure 7 Sulfate Concentrations over Time — Selected Monitor Wells ................................................ List of Tables Table 1 Monitor Well Construction Data Summary Table 2 Historical Groundwater Elevation Data Table 3 Groundwater and Surface Water Analytical Event Results Table 4 Groundwater and Surface Water Field Parameter Results 10 10 10 10 10 10 10 www.erm.com Version: 1.0 Project No.: 0397281 Client: Reuse Technology March 2, 2021 Page i WATER QUALITY MONITORING REPORT — NOVEMBER 2020 INTRODUCTION AND SITE HISTORY Battleboro, Nash County INTRODUCTION AND SITE HISTORY 1.1 Introduction On behalf of ReUse Technology, Inc. (ReUse), ERM NC, Inc. (ERM) has prepared this Water Quality Monitoring Report associated with corrective action activities conducted for the Swift Creek Coal Combustion By -Products (CCBs) Structural Fill site (CCB-0057) located along U.S. Highway 301 north of Battleboro, Nash County, North Carolina, (hereafter called the "Site" or "subject property"). Corrective actions have been implemented at the Site to address groundwater quality impacts in accordance with the Corrective Action Plan (CAP) (ERM February 27, 2015) approved by the North Carolina Department of Environmental Quality (NCDEQ) on March 12, 2015. The corrective actions were implemented in 2017 and included temporary removal of CCB materials to allow raising the floor elevation above the seasonal high groundwater table, placing the CCB materials on the raised floor in a reduced footprint, installation of a synthetic liner (cap) over the limits of the CCBs, and drainage improvements to minimize rainfall infiltration. Groundwater and surface water monitoring activities presented herein are being conducted at the Site to monitor the effectiveness of the corrective actions. The Site location is shown in Figure 1. A Site map is included as Figure 2. 1.2 Summary of Site Environmental History and Corrective Action The Site is a 25-acre property in northeast Nash County bounded by US Highway 301 to the west, Lane Swamp to the north and east and Swift Creek to the south. The area surrounding the site is comprised of sparsely populated agricultural land and partially wooded land. In December 1991, the Solid Waste Section approved a proposed plan submitted by ReUse to use CCBs as structural fill material in the development of the 25 acres as a commercial property. In September 1992, ReUse began placement of CCBs as beneficial use fill at the site. In January 2003, the last shipment of CCBs was accepted at the site. In March 2003, the site had been graded, compacted, covered with an 18-inch soil cap and planted with grass seed. In December 2003, Full Circle Solutions, Inc. purchased the business assets of ReUse Technology, Inc. including the Swift Creek Site. According to records of Full Circle Solutions, Inc., a total of approximately 134,000 tons of CCBs were placed at the Site. On November 4, 2004, the Closure Notice was forwarded to the Solid Waste Section. In August 2004, Sherrill Environmental, Inc. reported the results of groundwater monitoring at four newly installed monitoring wells (MW-1 S/MW-1 D, MW-2S/MW-2D) at the site. Lead and sulfate were detected at concentrations above the respective North Carolina 2L Groundwater Standards in the shallow groundwater on the east side of the CCB fill. In October 2004, the Solid Waste Section required an assessment by ReUse to determine the extent of the groundwater impact resulting from the placement of CCBs at the Site. In March 2006, a Comprehensive Site Assessment for the Swift Creek Project was submitted to the Solid Waste Section that included the results of an expanded groundwater and surface water assessment. In September 2006, a Compliance Order was issued by the Solid Waste Section to ReUse. In December 2006, pursuant to the Compliance Order, an Assessment Monitoring Plan and a Swift Creek Dewatering Analysis were submitted to the Solid Waste Section. The Assessment Monitoring Plan described a proposed groundwater and surface water monitoring program for the site. The Swift Creek Dewatering Analysis described a proposed dewatering subsurface drain along the western boundary of the fill along US Highway 301 to remove water from the coal ash fill and lower the local groundwater table to provide a required minimum 1-foot vertical separation between coal ash and seasonal high groundwater elevations. The Assessment Monitoring Plan was approved by the Solid Waste Section in February 2007. The Swift Creek Dewatering Analysis was conditionally approved by the Solid Waste Section in July 2007 based on the performance of the proposed dewatering plan. www.erm.com Version: 1.0 Project No.: 0397281 Client: ReUse Technology March 2, 2021 Page 1 WATER QUALITY MONITORING REPORT — NOVEMBER 2020 INTRODUCTION AND SITE HISTORY Battleboro, Nash County In January 2008, a dewatering subsurface drain was installed consisting of a 6-inch PVC drain pipe along the western boundary of the fill along US Highway 301. The drain was designed to lower the local groundwater table to provide a required minimum 1-foot vertical separation between coal ash and seasonal high groundwater elevations. Groundwater collected in the pipe was transmitted by gravity flow to an outfall box located at the north end of the site at Lane Swamp. The groundwater and surface water monitoring program was initiated at the site in October 2007 in accordance with the Assessment Monitoring Plan. The program consisted of semi-annual sampling and laboratory analytical testing for metals and sulfates at eight (8) groundwater monitoring well locations and three (3) surface water monitoring locations. Groundwater levels were also measured in the monitoring wells and piezometers in order to evaluate ground water flow direction and determine water levels relative to the CCB fill. The reported results of the groundwater monitoring from 2007 to 2014 confirmed groundwater quality impacts including concentrations of sulfate, arsenic and lead at levels above the respective North Carolina 2L groundwater standards. The monitoring reported no impacts to surface water quality in Lane Swamp or Swift Creek adjacent to the facility. The Division of Waste Management issued a "Warning Notice" to Full Circle Solutions and ReUse dated May 16, 2014. The notice stated that the required groundwater vertical separation between filled CCBs and seasonal high groundwater elevations had not been achieved and exceedances of the North Carolina 2L groundwater standards had been routinely reported. As a result, a "Groundwater Corrective Action Application" was required to be submitted for approval. On behalf of Full Circle Solutions and ReUse, ERM NC, Inc. (ERM) submitted a Corrective Action Application to the Division of Waste Management dated October 16, 2014 for approval. The Corrective Action Application proposed the construction of a synthetic liner (cap) and drainage improvements as corrective actions to significantly reduce or eliminate rainfall infiltration and leachate generation from the beneficial fill. Two contingency corrective actions also were identified. The Division issued approval in December 2014 and requested the submittal of a detailed Corrective Action Plan (CAP) to the Solid Waste Section. The Corrective Action Plan was submitted in February 2015 and approved by the NCDEQ Solid Waste Section in March 2015. The Corrective Action Plan was designed to raise existing CCBs to above historically high groundwater levels to prevent the leaching of contaminants of concern from the existing CCBs. The CAP included the installation of a protective liner system, cover soil layer, and drainage outlets to prevent infiltration of precipitation into the CCBs to assist in the prevention of leaching. The footprint of the limits of ash was condensed from approximately 10 acres to 5 acres reducing the effective infiltration area. Implementation of the Corrective Action Plan was delayed approximately 1 year in 2015- 2016 due to a North Carolina Department of Transportation (NCDOT) project to realign US Highway 301 along with bridge replacements across Swift Creek. The corrective measures began on April 24, 2017 and were completed on January 12, 2018. In June 2018, two new monitor wells, MW-5RS and MW-5RD, were installed as replacements for former upgradient wells MW-5S and MW-5D which were abandoned in 2015 by the NCDOT as part of the Highway 301 realignment project. The new wells were located hydraulically upgradient (west) of the Site on the west side of Highway 301 (see Figure 2) to monitor background water quality in the surficial aquifer (MW-5RS) and deep aquifer (MW-5RD) zones. The monitor wells were installed under an NCDOT right- of-way encroachment agreement (E-0420981800025). In accordance with the CAP, a performance monitoring and reporting plan was implemented in 2018 to monitor the effectiveness of the corrective action. The elements of the performance monitoring plan include: ■ Semi-annual groundwater and surface water monitoring and reporting, www.erm.com Version: 1.0 Project No.: 0397281 Client: ReUse Technology March 2, 2021 Page 2 WATER QUALITY MONITORING REPORT — NOVEMBER 2020 CONCEPTUAL SITE MODEL Battleboro, Nash County ■ Quarterly inspection and reporting of the Site for cap structural integrity, erosion control, proper drainage, etc., and ■ Corrective Action Effectiveness Reports prepared every five years to evaluate and document a reduction in contaminant concentrations in groundwater and a stable or decreasing plume extent. 2. CONCEPTUAL SITE MODEL 2.1 Hydrogeology Based on the corrective action and monitoring work by ERM as well as previous site investigation activities performed by others, the following updated conceptual site model has been developed. The Site is located in the Coastal Plain physiographic province of North Carolina. The site surficial geology consists of alluvial terrace deposits consisting of layers and mixtures of silts, clay, sands and gravels. The alluvial deposits at the site range in thickness from approximately 8 to 16 feet. The shallow ground water at the site occurs in the alluvial deposits and is referred to as the surficial or alluvial aquifer. The alluvial aquifer sands are of low to moderate permeability (average hydraulic conductivity 0.67 feet/day). Within the alluvial aquifer zone, a yellowish -brown clay layer was encountered in the majority of the borings for monitoring wells and piezometers installed at the site. The clay layer of the alluvial aquifer at the site is approximately 1 to 4 feet thick and has a low permeability (average hydraulic conductivity 0.002 feet/day). The clayey layer behaves as a confining layer or perching layer, which appears to limit the vertical migration of contaminants at the site. On the west (upgradient) edge of the site, the clay layer was reported absent in the borings for former wells MW-5S, MW-5D, P-23 and P-24. The alluvial deposits at the site are underlain by the Yorktown Formation, a regionally extensive marine deposit. At the site, the upper Yorktown Formation, consisting typically of greenish -gray, clayey, silty, Shelly, very fine sands, is encountered from approximately 13 feet to the maximum depth of investigation of 35 feet, and has a low permeability (average of 0.002 feet per day). No groundwater quality impacts have been detected in monitoring wells completed in the deeper Yorktown aquifer zone. The general groundwater flow pattern at the site is controlled largely by two groundwater discharge features: Lane Swamp to the north and east and Swift Creek to the south. Groundwater flow in the area of the site is generally from west to east with a northeast component of flow toward Lane Swamp at the north end of the site, and a southeast component of flow toward Swift Creek at the south end of the site. 2.2 Contaminant Fate and Transport The key features of the site conceptual model for contaminant fate and transport are summarized as follows: ■ The depth to groundwater ranges from 0 feet bgs at the creeks and swamps to more than 6 feet in topographically higher areas (not including the beneficial fill footprint). ■ The regional groundwater flow regime within the surficial (alluvial) aquifer flows west to east with north and south flow components near Swift Creek and Lane Swamp which serve as shallow groundwater discharge features. ■ The estimated groundwater velocities at the site are very low. The historical calculated groundwater velocities are approximately 6 to 27 feet per year for the surficial (alluvial) aquifer and approximately 0.03 feet per year for the deeper Yorktown aquifer. ■ Prior to the 2018 corrective action, seasonal rises of the underlying water table and rainfall infiltration downward through the old soil cap resulted in water infiltration into the coal ash fill. Constituents www.erm.com Version: 1.0 Project No.: 0397281 Client: ReUse Technology March 2, 2021 Page 3 WATER QUALITY MONITORING REPORT — NOVEMBER 2020 WATER QUALITY MONITORING ACTIVITIES Battleboro, Nash County within the coal ash fill were dissolved by the infiltration water and became mobile. The former infiltration mechanism has been mitigated by the corrective action. Once the infiltration water enters the surficial groundwater, it migrates laterally above a clay confining or perching layer within the alluvial aquifer zone towards the groundwater discharge features of Lane Swamp and Swift Creek which serve to limit the lateral extent of the affected groundwater. The limited lateral extent of the affected groundwater is evident at wells MW-2S and 2D, located approximately 200 feet east of the former perimeter of the beneficial fill, where no 2L groundwater exceedances are observed. Similarly, there is no evidence of affected groundwater to the west (upgradient) as evidenced by groundwater monitoring results at current monitoring wells MW-5RS and MW-5RD and former monitoring wells MW-5S and 5D. ■ Based on historical groundwater monitoring results, the groundwater quality impacts at the site are limited to the surficial aquifer zone. No groundwater quality impacts are detected in the deeper aquifer zone of the Yorktown Formation. The swamps and creeks surrounding the beneficial fill site act as a "natural perimeter drain" and intercept the affected groundwater. Based on the historical surface water monitoring results, there are no surface water quality impacts to Lane Swamp or Swift Creek due to affected groundwater from the site. 3. WATER QUALITY MONITORING ACTIVITIES 3.1 Objectives Demonstration of effectiveness of the completed remediation is the primary objective of the water quality monitoring program (i.e. remedial performance monitoring). This objective is achieved by monitoring the success in reducing the site -specific contaminants of concern (COC) in groundwater, therefore mitigating the potential for surface water quality impacts due to contaminated groundwater migration and discharge to surface water. The applicable preliminary remedial goals for groundwater and surface water are summarized below. www.erm.com Version: 1.0 Project No.: 0397281 Client: ReUse Technology March 2, 2021 Page 4 WATER QUALITY MONITORING REPORT — NOVEMBER 2020 WATER QUALITY MONITORING ACTIVITIES Battleboro, Nash County Groundwater NC 2L •. • •. • Compounds Arsenic 0.01 0.15 Barium 0.7 NE Cadmium 0.002 h Chromium (Total) 0.01 h Lead 0.015 0.025 Mercury 0.001 0.000012 Selenium 0.02 0.005 Silver 0.02 0.00006 Sulfate 250 NE pH 6.5 — 8.5 6.0 — 9.0 North Carolina 2L Groundwater Quality Standard 2 North Carolina Surface Water Quality Standard for Class C Waters NE = Not Established mg/L = milligrams per liter h = hardness dependent dissolved metal standard Water quality monitoring is conducted in accordance with the Corrective Action Plan (ERM March 2015). Following is a discussion of the groundwater and surface water monitoring activities conducted at the Site during the reporting period. 3.2 Monitoring Methods A water quality monitoring event was conducted at the Site on November 9-10, 2020. Groundwater and surface water samples were collected from the following monitor wells and surface water locations. Monitor Wells Surface Water Locations MW-1 S SW-1 MW-1 D SW-2 MW-2S SW-3 MW-2D MW-3 MW-4 MW-5RS MW-5RD MW-6 MW-7 MW-8 Subtotal: 11 Subtotal: 3 The monitor well and surface water locations are shown on Figure 2. Monitoring well construction details are summarized in Table 1. All monitor wells were gauged for water levels and then purged and sampled by low -flow purging methods. The surface water samples were collected as grab samples using clean containers. Field parameters (pH, conductivity, temperature, dissolved oxygen & oxidation reduction potential) were www.erm.com Version: 1.0 Project No.: 0397281 Client: ReUse Technology March 2, 2021 Page 5 WATER QUALITY MONITORING REPORT — NOVEMBER 2020 MONITORING RESULTS Battleboro, Nash County measured for each groundwater and surface water sample by calibrated meters. Well purge logs were completed for each monitor well to document the stabilization of field parameters prior to sample collection. Well purge logs are provided in Appendix B. The groundwater and surface water samples were placed in laboratory supplied containers and placed on ice. The samples were submitted to North Carolina certified laboratory Pace Analytical Services (Formerly Shealy Environmental Services) (NC329) and were analyzed for eight specific metals, sulfates and total dissolved solids using the analytical methods summarized below: Analytical Methods .. 0 011116 • 1 EPA Method 6010 Arsenic Barium Cadmium Chromium (Total) Lead Selenium Silver EPA Method 7470C Mercury EPA 300.0 Sulfates SM 2540 C Total Dissolved Solids 4. MONITORING RESULTS 4.1 Groundwater Monitoring Results Groundwater monitoring activities were conducted at 11 monitor wells at the Site. Groundwater depth -to - water gauging and elevation data are presented in Table 2. The groundwater elevations in the surficial aquifer on November 9, 2020 ranged from 90.43 ft MSL at MW-7 located on the east (downgradient) side of the Site to 94.50 ft MSL at MW-4 located on the west (upgradient) side of the Site. The groundwater elevations are below the base of the CCB fill which generally ranges from 94 to 99 ft MSL from east to west. A potentiometric surface map for the surficial (alluvial) aquifer zone for the November 2020 monitoring event is presented as Figure 3. Groundwater flow in the surficial aquifer over most of the Site is generally west to east towards Lane Swamp Swift Creek, which serve as groundwater discharge zones. Using the current groundwater elevation data, the hydraulic gradients for the Site were calculated. See summarized table below. 09-Nov-20 Well Head Head Distance Hydraulic Gradient Designation Elevation Change Change (ft) (ft) (ft) (ft/ft) • 1 � • 11 11 1 11 • � •� 1 ® � 11 11 1 11 • - .•- Hvdraulic Gradient0.0047 www.erm.com Version: 1.0 Project No.: 0397281 Client: ReUse Technology March 2, 2021 Page 6 WATER QUALITY MONITORING REPORT — NOVEMBER 2020 Battleboro, Nash County MONITORING RESULTS Groundwater seepage velocities were calculated using Darcy's equation, summarized as: Where: V=(Kxi)/ne V = seepage velocity of groundwater in ft/day K = hydraulic conductivity in ft/day i = hydraulic gradient (ft/ft) ne = effective porosity As summarized below, based on the November 2020 hydraulic gradients and the previously calculated mean hydraulic conductivities, the estimated groundwater seepage velocity in the surficial aquifer zone using a primary porosity range of 10 to 25% is approximately 4 to 9 feet per year. Seepage Velocity Range (Surficial Aquifer) = = (0.55) (0.0046) / (0.25) = 1.03E-02 ft/day = (0.55) (0.0046) / (0.10) = 2.57E-02 ft&U Range 25% 3.75 ft/yr of porosity 10% 9.39 ft/yr Seepage Velocity of4to9 The November 2020 groundwater analytical results are summarized in Table 3 for metals, sulfate and TDS, and in Table 4 for field parameters. Constituents that exceeded North Carolina 2L groundwater standards are summarized on Figure 4. Laboratory analytical reports for the sampling event are provided in Appendix D. A historical groundwater data summary is provided in Appendix A. For the November 2020 monitoring event, four analytes were detected above their respective North Carolina 2L Groundwater Standards, as summarized in the following table. www.erm.com Version: 1.0 Project No.: 0397281 Client: ReUse Technology March 2, 2021 Page 7 WATER QUALITY MONITORING REPORT — NOVEMBER 2020 Battleboro, Nash County MONITORING RESULTS Current Maximum Concentrations in Groundwater— November 2020 Arsenic 0.089 0.01 Lead 0.26 0.015 Sulfate 820 250 Total Dissolved Solids 25,000 500 mg/L = milligrams per liter Sulfate, a primary indicator analyte for CCB contaminant releases, was detected in groundwater at concentrations above its 2L standard (250 mg/L) at 5 of the 11 monitor wells. The distribution of sulfate concentrations across the Site is depicted in Figure 5. A hydrogeologic profile across the Site, including sulfate concentrations in groundwater, is presented in Figure 6. The highest concentration of sulfate was detected in the groundwater sample collected from monitor well MW-6 (820 mg/L) located on the east- northeast (downgradient) end of the site. Sulfate concentrations at MW-7 (640 ug/L) and MW-8 (660 ug/L) continue to have elevated concentrations in the east (downgradient) of the site. At MW-3 located on the southern (locally downgradient) side of the Site, an increase in the sulfate concentration occurred: the November 2020 sulfate concentration of 710 ug/I at MW-3 represented a 22 percent increase from the previous monitoring event of March 2020 (580 ug/1), but remains below the highest sulfate concentration since June 2019 (1,000 ug/L) and is within the normal range of fluctuation. Graphs of sulfate concentrations over time for selected monitor wells are presented in Figure 7. Since the completion of the corrective action in January 2018, decreasing to stable sulfate concentration trends are evident at MW-3, MW-6, MW-7 and MW-8. Notably low values of pH were measured in the groundwater samples from MW-6 (3.5), MW-7 (3.5) and MW-8 (3.4). The low pH values at the three wells are consistent with historical monitoring results, and correlate with detections of arsenic and lead, in addition to sulfate, at concentrations above their respective North Carolina 2L groundwater standards at the three wells. There were no exceedances of 2L standards in the three monitor wells located on the west (upgradient) side of the Site (MW-4, MW-5RS & MW-5RD). Other than MW-1 S, the other three monitor wells located on the east side of the Site (MW-1 D, MW-2S & MW21D) only had one exceedance (in MW-1 D) of the 2L standards for one parameter, total dissolved solids. The elevated TDS concentration at MW-1 D does not appear to be attributable to sulfate or metals which were not present at elevated levels. Sulfate and TDS concentrations exceeded their 2L standards in MW-1 S, which is consistent with historical monitoring results. 4.2 Surface Water Monitoring Results Consistent with historical monitoring results, the November 2020 surface water monitoring results indicated no exceedances of any North Carolina 213 surface water standards for any samples collected from Swift Creek (SW-1) and Lane Swamp (SW-2 & SW-3). The November 2020 surface water sampling results are summarized in Table 3. Laboratory analytical reports for the surface water samples are provided in Appendix D. Historical surface water data is summarized in Appendix A. 4.3 Laboratory Data Quality Analysis Quality assurance/quality control (QA/QC) samples collected during the November 2020 groundwater sampling activities included one blind duplicate sample collected at MW-1S. The duplicate sample of MW- www.erm.com Version: 1.0 Project No.: 0397281 Client: ReUse Technology March 2, 2021 Page 8 WATER QUALITY MONITORING REPORT — NOVEMBER 2020 Battleboro, Nash County SUMMARY 1S and the MW-1S sample results can be compared in Table 3. The analytical results of the MW-1S and duplicate groundwater samples compare favorably indicating no analytical discrepancy. 5. SUMMARY Corrective actions have been implemented at the Site to address groundwater quality impacts in accordance with the approved CAP. The corrective actions were completed in January 2018 and included temporary removal of CCB materials to allow raising the floor foundation above the seasonal high groundwater table, placing the CCB materials on the raised floor in a reduced footprint, installation of a synthetic liner (cap) over the limits of the CCBs, and drainage improvements to minimize rainfall infiltration. Groundwater and surface water monitoring activities are being conducted at the Site to monitor the effectiveness of the corrective actions. The November 2020 water quality monitoring event evaluated groundwater and surface water quality conditions at the Site approximately 2.9 years after the corrective action completion. Since the completion of the corrective action in 2018, the 5 monitor wells with the historically most elevated sulfate levels exhibited decreasing or stable trends in sulfate concentrations in groundwater in 4 of the 5 monitor wells as shown in Figure 7. The trend of decreasing sulfate concentrations indicates that the corrective action is effectively mitigating the groundwater quality impacts at the Site. The November 2020 surface water quality results continue to demonstrate that there have been no surface water impacts to Swift Creek or Lane Swamp due to discharges of affected groundwater from the Site. In accordance with the CAP, semi-annual water quality monitoring will continue at the Site. www.erm.com Version: 1.0 Project No.: 0397281 Client: ReUse Technology March 2, 2021 Page 9 DRAFT WATER QUALITY MONITORING REPORT — NOVEMBER 2020 Battleboro, Nash County SUMMARY Figures Figure 1 Site Location Map Figure 2 Site Map and Monitor Well Locations Figure 3 Shallow Groundwater Potentiometric Map — November 2020 Figure 4 Groundwater Analyses - Constituents Exceeding 2L Groundwater Standards — November 2020 Figure 5 Groundwater Analyses —Sulfate —Surf icial Aquifer Figure 6 Hydrogeologic Profile A -A' Figure 7 Sulfate Concentrations over Time —Selected Monitor Wells www.erm.com Version: 1.0 Project No.: 0397281 Client: ReUse Technology February 2021 Page 10 ,I a� SITE LOCATION -� I � all. a1£vCUTCHIN i= L- -� o I aar I� c,\ O'U1�TT - ROCKY M 9 ^ .,-�_ ` aam aanle�wro 1l W,amcsTaa �✓�� \ m � Y� - - o + — SOURCE: USGS 7.5 MINUTE TOPOGRAPHIC QUADRANGLE: L SCALE 1:24000 1 1/2 0 1 MILE u NORTH CAROLINA 1000 0 1000 2000 3000 4000 5000 6000 7000 FEET N D 7 b CONTOUR INTERVAL 10 FEET DOTTED LINES REPRESENT 5-FOOT CONTOURS QUADRANGLE LOCATION NATIONAL GEODETIC VERTICAL DATUM OF 1929 SWIFT CREEK FIGURE i z ERM, NC INC. STRUCTURAL FILL — CCB0057 � ReUse Technology r ERM Battleboro, NC L + - LEGEND: _ EXISTING TOPOGRAPHIC CONTOUR (1-FT INTERVAL) mw-5s MW-5s EXISTING MONITORING WELL (SHALLOW) MW-5RS 8 Mw-51) EXISTING MONITORING WELL (DEEP) (ABANDONED) (ABANDONED) 93.101 sw-2 EXISTING SURFACE WATER i - MONITORING LOCATION T SWAMP AREAS • MW-5RD NOTE: GROUNDATER ELEVATIONS COLLECTED ON • - NOVEMBER 9, 2020. . MW-4t 92.54 1* NOT USED FOR CONTOURING 94.50' -- - . - - EXISTING ACCESS - -- DRIVE WAY p�Qs--- -- _ ------ MW-6 90.61 Tlfp - - 1 93 - . A h - 1 CCB STRUCTURAL FILL -------- BOUNDARY - MW-1S - MW-3, 90.89' 92.17' I-IiIij jz� - -- - BMW-1 D _ 1 41 _ 91.10 A/ --L --L �L lid- / , \\v� � �- MW-2S . MW-2D LL _ LANE SWAMP A/ Q� 90.951 ------ 91.14 _ < \lllt / �il � Llllt lllt lt MW-7 r 90.43 SW- � � yL NOTES: \II/ ldl� \II/MW-8 -ii- -iL -iL -iL -iL -IL -LL -LL 1. PROPERTY LINE OBTAINED FROM GIS DATABASE. PROPERTY � 90.531 SCALE IN FEET LINE WAS NOT SURVEYED BY A LICENSED SURVEYOR. JALIL - 50 2512.5 0 50 NO. DATE APPR. REVISION NO. DATE APPR. REVISION FIGURE NO. SWIFT CREEK STRUCTURAL FILL - SHALLOW GROUNDWATER 3 CCB0057 BATTLEBORO, NORTH CAROLINA I POTENTIOMETRIC MAP NOVEMBER 2020 LICENSE #F-1223 DRAWN BY PROJECT ENGINEER SCALE DATE CWM DWW ERM NC, INC. 1"=50' FEBRUARY 2021 DESIGN ENGINEER PROJECT MANAGER 15720 BRIXHAM HILL AVENUE, SUITE 120 PROJECT NO. AutoCAD 2021 SHEET 3 (� OF / CHARLOTTE, NORTH CAROLINA 28277 DWW DWW (704)541-8345 FIGURE 3 GROUNDWATER MAP.DWG ` SW-1 NONE W .40 - r 1 �T MW-4 NONE 1VIW-5S MW-5RS NONE �# MW-5RD NONE LEGEND: _ EXISTING TOPOGRAPHIC CONTOUR (1-FT INTERVAL) e MW-5s EXISTING MONITORING WELL (SHALLOW) 8 MW-51) EXISTING MONITORING WELL (DEEP) SW-2 EXISTING SURFACE WATER MONITORING LOCATION SWAMP AREAS NOTE: CONCENTRATIONS IN MG/L EXCEPT pH IN STANDARD UNITS EXISTING ACCESS - DRIVE WAY MW-6 ARSENIC 0.066 +L LEAD 0.085 i - SULFATE 820 TDS 7,700 pH 3.5 'r A. W_ MW-1 S CCB STRUCTURAL FILLlow BOUNDARY J SULFATE 400 IL IL LL LL IL - TDS 81400 _AL AL 11L AL MW-3 - pH 5.6 MW-7 TDS 25,000 �� ARSENIC 0.089 oQ � SULFATE 7101 .� - - - Q� 11L AL \11L -AL AL AL A MW-1 D LEAD 0.26 1 - TDS 810 ,4 SULFATE 640 TDS 12,000 - MW-2D p H 3.5 NONE ►-� LANE SWAMP - - MW-2S ' j n .• MW-8 SW- - -, NONE '. ARSENIC 0.078 tit - NONE Cr1 - - - ompnow,- LEAD 0.23_11L Al SULFATE 660 TDS 16,000 pH 3.4 NOTES: 1. PROPERTY LINE OBTAINED FROM GIS DATABASE. PROPERTY SW-3 LINE WAS NOT SURVEYED BY A LICENSED SURVEYOR. NONE SCALE IN FEET i 60 30 15 0 60 NO. DATE APPR. REVISION NO. DATE APPR. REVISION FIGURE NO. SWIFT CREEK STRUCTURAL FILL - GROUNDWATER ANALYSES - CONSTITUENTS 4 CCB0057 ABOVE WATER QUALITY STANDARDS - BATTLEBORO, NORTH CAROLINA NOVEMBER 2020 LICENSE #F-1223 DRAWN BY PROJECT ENGINEER SCALE DATE CWM DWW ERM NC, INC. 1"=60' FEBRUARY 2021 DESIGN ENGINEER PROJECT MANAGER 15720 BRIXHAM HILL AVENUE, SUITE 120 PROJECT NO. AutoCAD 2021 SHEET OF CHARLOTTE, NORTH CAROLINA 28277 DWW DWW (704)541-8345 FIGURE 4 CONSTITUENTS MAP.DWG A. `NNNAN,lN ,� y 4 O iry CROSS SECTION LOCATION LEGEND: RAINFALL RECHARGE AND GROUNDWATER FLOW INDICATE SULFATE CONCENTRATION (MG/L) 19 NOVEMBER 2020 A 140 13 12 i0 WEST 10 (94.50)� - _96 9C 8i 8C 7t ec / \ 130 \ 120 \ / CCB FILL \ i 110 \ / GROUNDWATER ELEVATION BASED ON 11-9-2020 — �—� — MONITORING WELLS --- \ \EAST \ MW-1 S�1 D \ too ---------- ---- MW-2S 2D (s0.89)/(91.10) MW-8 _...... ,.,_.,._... _..._ 94 (91.14)/(90.95) (90.53) SW-3 _... .. _..._.. 2.5 90 ALLUVIA N AQUIFER __.. 660 eo ALLUVIAL Ate.,._ Y EXISTING CLAY LAYER FROM BORING LOGS (ALLUVIAL) - — 16 1(64.0) AQUIFER 70 66 1.3 NOTE: CROSS SECTION DEVELOPED USING INFORMATION PROVIDED TO ERM BY APPIAN CONSULTING ENGINEERS, P.A. & SHERRIL ENVIRONMENTAL, INC. (56.0) HORIZONTAL SCALE:1"=150' FIGURE HYDROGEOLOGIC PROFILE A -A' ERM NC, Inc. SWIFT CREEK PROJECT 6 ERM BATTLEBORO, NORTH CAROLINA FIGURE 7 - SULFATE CONCENTRATIONS OVER TIME SWIFT CREEK CCB FILL SITE 800 700 600 500 o\n 400 v 300 3 `) 200 100 0 O� Oh OHO 1v -�) y 'y ,yob 1y ti0 �O� QJaO le pow �oJ peo �a� �e� lac QQt 40 ,Op �O 0 ♦Sulfate ......••• Sulfate Concentration Trend MW-3 1200 l000.............. 800 - J bA 600 v 400 200 0 O O O O O O O O O O O O O O O O tSulfate ......••• Sulfate Concentration Trend MW-6 1200 1000 800 J bA £ 600 v 400 200 Al .... Oh Or° 01 04' O°' y0 yv yL y'� yR yh yr° y1 y4' yoi LO O O O O O O O O O O O O O O O O tSeriesl ......••• Sulfate Concentration Trend FIGURE 7 - SULFATE CONCENTRATIONS OVER TIME SWIFT CREEK CCB FILL SITE M 1N . 1000 900 800 ........... .... 700 Z 600 on 500 400 'n 300 200 100 0 01 oo ti° titi titi ti� ti° tih ti° ti� ti� ti� ti° O O O O O O O O O O O O O O O O f Sulfate ......••• Sulfate Concentration Trend MW-8 1200 1000 800 m 600 v 75 400 ..... .......... N WX 0 o\ 006 0� ti° titi titi ti'' tiR tih ti° ti1 ti`6 ti° �aJ �aJ �aJ �aJ �aJ �aJ �aJ �aJ �aA �aA t Sulfate ......••• Sulfate Concentration Trend DRAFT WATER QUALITY MONITORING REPORT — NOVEMBER 2020 Battleboro, Nash County SUMMARY Tables Table 1 Monitor Well Construction Data Summary Table 2 Historical Groundwater Elevation Data Table 3 Groundwater and Surface Water Analytical Event Results Table 4 Groundwater and Surface Water Field Parameter Results www.erm.com Version: 1.0 Project No.: 0397281 Client: ReUse Technology February 2021 Page 11 TABLE 1 MONITOR WELL CONSTRUCTION DATA SUMMARY - SWIFT CREEK PROJECT Monitor Well Top of Casing Elev. Ground Surface Elev. Casing Stick Up Screen Interval Total Depth (TOC) Alluvial/ Marine Status MW-1 S 99.54 96.8 2.7 3-13 15.7 84.0 Active MW-1 D 99.90 97.1 2.8 23-33 35.7 84.0 Active MW-2S 94.87 92.1 2.8 6-16 18.7 78.5 Active MW-21D 95.22 92.2 3.0 26-36 39.1 78.5 Active MW-3 102.15 99.2 3.0 7-17 20.0 82.2 Active MW-4 106.06 104.1 2.0 8-18 20.0 89.1 Active MW-5S 102.68 99.7 3.0 6-16 17.0 88.2 Abandoned MW-51D 102.67 99.8 2.9 25-35 37.9 88.2 Abandoned MW-5RS 98.80 TBD Flush Mount 8-18 18.0 70.6 Active MW-5RD 98.57 TBD Flush Mount 30-35 37.9 70.6 Active MW-6 98.41 95.0 3.4 6-16 19.4 79.0 Active MW-7 98.63 95.1 3.5 6-16 19.5 79.0 Active MW-8 95.42 92.4 3.0 6-16 19.0 76.4 Active Piezometer P-1 108.19 105.6 2.6 20-30 32.6 Abandoned P-2 109.53 106.7 2.8 20-30 32.8 Abandoned P-3 106.18 104.4 1.8 18-28 30.0 Abandoned P-4 106.57 104.0 2.6 20-30 32.6 Abandoned P-5 108.39 105.9 2.5 20-30 32.5 Abandoned P-6 109.79 107.5 2.3 20-30 32.3 Abandoned P-7 107.77 105.9 1.9 30-40 41.9 82.9 Abandoned P-8 106.53 103.9 2.6 30-40 42.6 82.9 Abandoned P-9 103.32 100.9 2.4 20-30 32.4 87.0 Abandoned P-10 108.17 106.1 2.1 20-30 32.1 89.1 Abandoned P-11 101.88 99.2 2.7 13-23 25.7 82.0 Abandoned P-12 107.04 104.0 3.0 6-16 19.0 Abandoned P-13 108.99 105.9 3.1 6-16 19.1 Abandoned P-14 105.38 101.9 3.5 4-14 17.5 Abandoned P-15 103.76 101.0 2.8 4-14 16.8 Abandoned P-16 105.28 102.1 3.2 4-14 17.2 Abandoned P-17 105.31 101.8 3.5 4-14 17.5 Abandoned P-18 111.21 107.5 3.7 5-15 18.7 Abandoned P-19 111.86 108.3 3.6 7-17 20.6 Abandoned P-20 107.00 104.2 2.8 7-17 19.8 Abandoned P-21 104.99 99.5 5.5 4.5-11.5 16.5 Abandoned P-22 103.60 101.8 1.8 17-27 28.8 87.0 Abandoned P-23East 109.75 107.1 2.7 9-19 21.8 90.0 Abandoned P-24West 103.17 101.1 2.1 3-13 15.3 90.0 Abandoned B-1 107.66 105.7 2.0 14-19 21.0 88.9 Abandoned TABLE 2 HISTORICAL GROUNDWATER ELEVATION DATA SWIFT CREEK - CCB0057 BATTLEBORO, NORTH CAROLINA Page 2 of 4 Depth Elevation Depth Elevation Depth Elevation Depth Elevation Depth Elevation Depth Elevation Depth Elevation Depth Elevation Depth Elevation Depth Elevation Depth Elevation Depth Elevation Depth Elevation Depth Elevation Gauging Date ft BTOC ft MSL ft BTOC ft MSL ft BTOC ft MSL ft BTOC ft MSL ft BTOC ft MSL ft BTOC ft MSL ft BTOC ft MSL ft BTOC ft MSL ft BTOC ft MSL ft BTOC ft MSL ft BTOC ft MSL ft BTOC ft MSL ft BTOC ft MSL ft BTOC ft MSL Well Identification MWAS MW-1D MW-2S MW-213 MW-3 MW-4 MW-5S MW-513 MW-6 MW-7 MW-8 MW-5RS MW-5RD Lane Swamp TOC Elevation: 99.54 99.90 94.87 95.22 102.15 106.06 102.68 102.67 98.41 98.63 95.42 98.80 98.57 92.25 TOC Stickup (Ft from GL) 2.7 2.8 2.8 3.0 3.0 2.0 3.0 2.9 3.4 3.5 3.0 - N/A Screened Interval (Ft BGL) 3-13 23-33 6-16 26-36 7-17 8-18 6-16 25-35 6-16 6-16 6-16 8-18 30-35 N/A Geologic Zone Screened Surficial Surficial Surficial Deep (Yorktown) Surficial Surficial Surficial Deep (Yorktown) Surficial Surficial Surficial Surficial Deep (Yorktown) N/A 12-Jan-2005 8.21 91.33 8.57 91.33 4.72 90.15 4.7 90.52 9.65 92.50 11.24 94.82 6.01 96.67 6.4 96.27 7.17 91.24 7.63 91.00 NM -- - - 1-Aug-2006 8.11 91.43 8.28 91.62 NM -- NM -- 9.48 92.67 10.15 95.91 5.86 96.82 5.68 96.99 7.18 91.23 7.74 90.89 NM - -- 6-Sep-2006 8.69 90.85 9.05 90.85 4.83 90.04 4.87 90.35 10.32 91.83 11.41 94.65 6.94 95.74 6.84 95.83 7.74 90.67 8.66 89.97 NM -- 4-Apr-2007 7.80 91.74 8.18 91.72 4.4 90.47 4.75 90.47 9.31 92.84 9.96 96.10 6.12 96.56 5.96 96.71 7.28 91.13 7.8 90.83 4.84 90.58 - 21-Aug-2007 10.89 88.65 11.30 88.60 6.77 88.10 6.82 88.40 11.4 90.75 13.28 92.78 9.57 93.11 9.42 93.25 10.8 87.61 10.71 87.92 7.67 87.75 - - -- 21-Oct-2007 11.40 88.14 11.76 88.14 7.31 87.56 7.43 87.79 12.98 89.17 14.06 92.00 10.62 92.06 10.63 92.04 11.9 86.51 11.41 87.22 8.3 87.12 -- -- -- 31-Jan-2008 9.13 90.41 9.42 90.48 4.86 90.01 5.02 90.20 10.7 91.45 14.11 91.95 7.65 95.03 8.11 94.56 8.44 89.97 8.71 89.92 5.57 89.85 - - -- 22-Mar-2008 8.10 91.44 8.44 91.46 4.4 90.47 4.54 90.68 9.18 92.97 13.28 92.78 6.98 95.70 7.34 95.33 7.18 91.23 7.79 90.84 4.78 90.64 -- 2.51 89.74 9-Apr-2008 9.26 90.28 9.47 90.43 4.58 90.29 5.02 90.20 10.98 91.17 14.82 91.24 10.87 91.81 10.72 91.95 8.92 89.49 9.06 89.57 5.97 89.45 - 3.1 89.15 17-Jun-2008 9.12 90.42 9.42 90.48 5.03 89.84 5.23 89.99 10.54 91.61 14.05 92.01 8.93 93.75 8.92 93.75 8.36 90.05 9.06 89.57 6.09 89.33 -- -- 3.2 89.05 13-Jan-2009 8.22 91.32 8.55 91.35 4.26 90.61 4.46 90.76 9.35 92.80 13.41 92.65 7.16 95.52 7.54 95.13 7.02 91.39 7.6 91.03 4.58 90.84 -- - 2.52 89.73 31-Mar-2009 7.60 91.94 7.96 91.94 4.36 90.51 4.38 90.84 6.74 95.41 12.43 93.63 5.98 96.70 6.22 96.45 6.81 91.60 7.2 91.43 4.21 91.21 - 2.5 89.75 23-Jun-2009 8.62 90.92 8.92 90.98 4.41 90.46 4.77 90.45 10.06 92.09 13.86 92.20 9.83 92.85 9.63 93.04 7.72 90.69 8.52 90.11 5.56 89.86 -- 2.9 89.35 30-Sep-2009 8.86 90.68 9.18 90.72 4.64 90.23 5.00 90.22 10.82 91.33 14.7 91.36 10.4 92.28 10.26 92.41 8.08 90.33 8.51 90.12 5.5 89.92 -- 3.15 89.10 15-Dec-2009 7.54 92.00 NM -- 4.22 90.65 NM -- 8.68 93.47 12.85 93.21 6.3 96.38 NM -- 6.78 91.63 7.13 91.50 4.21 91.21 - -- 2.6 89.65 31-Mar-2010 7.37 92.17 7.74 92.16 2.42 92.45 4.46 90.76 8.64 93.51 12.52 93.54 5.8 96.88 6.19 96.48 6.77 91.64 7.93 90.70 3.96 91.46 -- - 2.14 90.11 29-Jun-2010 9.35 90.19 NM -- 4.94 89.93 NM -- 10.66 91.49 14.62 91.44 9.97 92.71 NM -- 9.21 89.20 9.25 89.38 6.31 89.11 - 3.35 88.90 28-Sep-2010 9.23 90.31 10.05 89.85 4.8 90.07 5.50 89.72 11.55 90.60 14.8 91.26 10.85 91.83 11.1 91.57 9.11 89.30 8.52 90.11 5.48 89.94 -- 4.1 88.15 13-Dec-2010 8.54 91.00 NM -- 4.36 90.51 NM -- 10.12 92.03 14.02 92.04 8.72 93.96 NM -- 7.37 91.04 7.93 90.70 4.81 90.61 - 2.02 90.23 28-Mar-2011 8.03 91.51 8.42 91.48 4.35 90.52 4.67 90.55 9.17 92.98 13.32 92.74 7.45 95.23 7.84 94.83 7.25 91.16 7.53 91.10 4.42 91.00 -- -- 2.85 89.40 26-Jun-2011 10.05 89.49 10.35 89.55 6.02 88.85 6.32 88.90 11.23 90.92 14.82 91.24 10.59 92.09 10.43 92.24 9.2 89.21 9.98 88.65 7.04 88.38 -- - 2.85 89.40 28-Sep-2011 7.84 91.70 NM -- 4.24 90.63 NM -- 8.9 93.25 13.09 92.97 7.62 95.06 NM -- 7.13 91.28 7.71 90.92 4.83 90.59 -- 2.2 90.05 18-Dec-2011 8.00 91.54 8.35 91.55 4.32 90.55 4.65 90.57 8.88 93.27 13.1 92.96 7.35 95.33 7.7 94.97 6.98 91.43 7.53 91.10 4.47 90.95 - 1.8 90.45 23-Mar-2012 8.01 91.53 8.35 91.55 4.31 90.56 4.56 90.66 8.89 93.26 13.01 93.05 7.35 95.33 7.66 95.01 7.03 91.38 7.75 90.88 4.8 90.62 -- - 1.65 90.60 28-Jun-2012 8.39 91.15 8.72 91.18 4.65 90.22 4.92 90.30 9.4 92.75 13.38 92.68 8.52 94.16 8.54 94.13 7.42 90.99 8.45 90.18 5.63 89.79 -- 1.95 90.30 18-Sep-2012 7.41 92.13 7.86 92.04 4.16 90.71 4.5 90.72 8.21 93.94 12.73 93.33 7.21 95.47 7.45 95.22 6.82 91.59 7.37 91.26 4.51 90.91 -- 1.52 90.73 17-Dec-2012 8.04 91.50 8.44 91.46 NM -- NM -- 9.19 92.96 13.36 92.70 8.55 94.13 8.76 93.91 6.82 91.59 7.37 91.26 4.51 90.91 -- 1.45 90.80 26-Mar-2013 7.87 91.67 8.13 91.77 4.23 90.64 4.46 90.76 8.71 93.44 12.84 93.22 7.03 95.65 7.38 95.29 7.08 91.33 7.26 91.37 4.22 91.20 -- 2.05 90.20 12-Apr-2013 8.30 91.24 8.59 91.31 4.31 90.56 4.72 90.50 9.59 92.56 14.13 91.93 8.48 94.20 8.7 93.97 7.47 90.94 7.8 90.83 4.82 90.60 -- - 2.85 89.40 25-Jun-2013 8.00 91.54 8.34 91.56 4.18 90.69 4.57 90.65 9.05 93.10 12.97 93.09 6.92 95.76 7.44 95.23 7.05 91.36 7.7 90.93 4.69 90.73 - 2.45 89.80 26-Sep-2013 8.38 91.16 8.67 91.23 4.32 90.55 4.71 90.51 9.57 92.58 13.65 92.41 9.5 93.18 9.5 93.17 8.75 89.66 8.19 90.44 5.25 90.17 -- 3.05 89.20 28-Mar-2014 7.74 91.80 8.03 91.87 4.33 90.54 4.54 90.68 8.56 93.59 12.53 93.53 6.68 96.00 7.03 95.64 6.92 91.49 7.23 91.40 4.39 91.03 - -- 1.85 90.40 27-Jun-2014 8.43 91.11 8.74 91.16 4.45 90.42 4.8 90.42 9.69 92.46 13.93 92.13 7.78 94.90 8.8 93.87 8.33 90.08 8.54 90.09 5.6 89.82 -- -- 2.95 89.30 26-Sep-2014 7.82 91.72 8.20 91.70 3.91 90.96 4.28 90.94 8.62 93.53 13.81 92.25 6.68 96.00 7.33 95.34 7.1 91.31 7.36 91.27 4.4 91.02 -- - 1.95 90.30 17-Dec-2014 7.88 91.66 8.30 91.60 4.22 90.65 4.53 90.69 9.01 93.14 13.71 92.35 7.94 94.74 7.46 95.21 7.24 91.17 7.4 91.23 4.34 91.08 - 2.1 90.15 28-Jun-2018 9.36 90.18 9.55 90.35 4.56 90.31 4.96 90.26 10.35 91.80 11.65 94.41 Abandoned 2015 Abandoned 2015 8.68 89.73 9.12 89.51 5.86 89.56 6.84 91.96 10.52 88.05 -- 22-Jan-2019 8.68 90.86 9.14 90.76 3.8 91.07 4.55 90.67 9.71 92.44 11.24 94.82 Abandoned 2015 Abandoned 2015 7.78 90.63 7.93 90.70 4.93 90.49 6.59 92.21 5.75 92.82 - 17-Jun-2019 8.90 90.64 10.16 89.74 4.06 90.81 4.56 90.66 10.54 91.61 11.96 94.10 Abandoned 2015 Abandoned 2015 8.19 90.22 8.55 90.08 5.35 90.07 6.98 91.82 8.95 89.62 -- 9-Mar-2020 8.66 90.88 8.99 90.91 3.95 90.92 4.45 90.77 9.74 92.41 11.26 94.80 Abandoned 2015 Abandoned 2015 7.79 90.62 8.08 90.55 4.61 90.81 5.81 92.99 6.01 92.56 -- 9-Nov-2020 1 8.65 90.891 8.80 91.101 3.73 91.141 4.27 90.951 9.981 92.171 11.56 94.50 Abandoned 2015 jAbandoned 2015 1 7.8 90.611 8.2 90.431 4.89 90.53 5.7 93.101 6.03 92.54 -- NE - Not Established -- = Not Measured BTOC = Below Top of Casing BGL - Below ground level ft MSL = feet above Mean Sea Level TOC Stickup data per Sherrill Environmental, Assessment Montoring Report , Feb 10, 2015 10-7-20 Note: Historical GW elevation values corrected for MW-3 RJRTIDRAFT Swift Creek Tables 2020 11.xisxl2. GW Elevations TABLE 3 GROUNDWATER AND SURFACE WATER ANALYTICAL EVENT RESULTS SWIFT CREEK STRUCTURAL FILL - CCB0057 BATTLEBORO, NORTH CAROLINA Page 3 of 4 Sample Location / ID Datecn D oo °' a 3 o o r m Cn CD m v_) cn 0 v 9 cn v o 0 Q NC 2L Groundwater Standard 0.01 0.7 0.002 0.01 0.015 0.001 0.02 0.02 250 500 NC 2B Surface Water Standard 0.15 NE h h 0.025 0.000012 0.005 0.00006 NE NE GROUNDWATER MONITORING WELLS MW-1S 11/9/20 <0.015 0.26 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 400 8,400 FD-01 (MW-1S) 11/10/20 <0.015 0.26 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 370 6,400 MW-1D 11/9/20 <0.01 0.6 <0.005 <0.01 <0.010 <0.0002 <0.02 <0.01 16 810 MW-2S 11/9/20 <0.015 0.24 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 <1 400 MW-2D 11/9/20 <0.015 0.27 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 1.3 300 MW-3 11/10/20 <0.015 0.049 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 710 25,000 MW-4 11/10/20 <0.01 0.061 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 29 250 MW-5RS 11/9/20 <0.015 0.1 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 3.1 290 MW-5RD 11/9/20 <0.01 0.22 <0.005 <0.01 <0.01 <0.0002 <0.01 <0.01 7.9 240 MW-6 11/9/20 0.066 0.078 <0.005 <0.01 F 0.085 <0.0002 <0.02 <0.01 820 7,700 MW-7 11/9/20 0.089 0.14 <0.005 <0.01 0.26 <0.0002 <0.02 <0.01 640 12,000 MW-8 11/9/20 0.0781 0.09 <0.005 <0.01 0.23 <0.0002 <0.02 <0.01 6601 16,000 SURFACE WATER SW-01 11/9/20 <0.015 0.032 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 1.8 91 SW-02 11/9/20 <0.015 0.039 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 1.1 91 SW-03 11/9/20 <0.015 <0.025 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 2.5 67 All concentrations in milligrams per liter (mg/L) unless otherwise noted. --- Not sampled NE - Not established Bold with gray background indicates exceedance of NC Groundwater or Surface Water Standai h = hardness dependent dissolved metal standard DRAFT Swift Creek Tables 2020 11.xlsx/Table 3-Event Data 2020-11 TABLE 4 GROUNDWATER AND SURFACE WATER FIELD PARAMETER RESULTS SWIFT CREEK STRUCTURAL FILL - CCB0057 BATTLEBORO, NORTH CAROLINA Page 4 of 4 Sample Location / ID Date = 3 , CD m F (Q @ V y 3= p c � c a a ? A O of o. a �; < n p X � , o v 3 a NC 2L Groundwater Standard 6.5 - 8.5 NE NE NE NE 50 NE NE NE >5.0 NC 26 Surface Water Standard 6.0 - 9.0 NE GROUNDWATER MONITORING WELLS MW-is 11/9/20 5.6 23.8 8,023 2.3 -116 0.43 MW-1D 11/9/20 6.9 24.4 1,304 1.9 -68 0.40 MW-2S 11/9/20 6.3 21.3 732 15.2 -120 0.34 MW-2D 11/9/20 7.1 22.0 529 2.7 -86 0.34 MW-3 11/10/20 5.2 18.9 2,921 6.3 66 0.20 MW-4 11/10/20 6.3 43 442 9.6 43 0.52 MW-5RS 11/9/20 7.0 22.0 477 1.1 -17 0.32 MW-5RD 11/9/20 7.3 21.5 384 9.6 -120 0.67 MW-6 11/9/20 3.5 23.0 9,811 1.2 294 0.20 MW-7 11/9/20 3.5 20.9 16,203 2.8 259 0.24 MW-8 11/9/20 3.4 20A 13,803 5.4 204 0.59 SURFACE WATER SW-01 11/9/20 6.8 15.2 94 10 26 4.23 SW-02 11/9/20 6.4 19.3 133 11 -72 13.03 SW-03 11/9/20 6.8 18.3 325 11 63 3.78 NE - Not established NM - Not measured Bold value exceeds applicable pH standard DRAFT Swift Creek Tables 2020 11.xlsx/Table 4-Field Parameters2020-11 DRAFT WATER QUALITY MONITORING REPORT— NOVEMBER 2020 APPENDIX A HISTORICAL GROUNDWATER AND SURFACE WATER RESULTS November 2020 www.erm.com Version: 1.0 Project No.: 0397281 Client: ReUse Technology February 2021 P:\Projects\0397281 ReUse CAP Implementation Swift Cr.DW\Post Closure Monitoring\2020-11 GWS\DRAFT_Swift Creek Water Quality Monitoring Report 02-09-2021 TW CM.docx APPENDIX Al GROUNDWATER ANALYTICAL RESULTS SUMMARY SWIFT CREEK STRUCTURAL FILL - CCB0057 BATTLEBORO, NORTH CAROLINA Sample Location / ID Date D m 3 OD v c' 3 (� n 3 c' 3 n o o 3 c m 3 r m Q 0 c � (n CD 3 c' u? < m cn = fli O o O m fl- O = N 9 N u) 3 CD CD N c' c v 3 7 o c �. < �' c s C L v �' _U O .-a O v' n Q v � 5" G 0 (N (N O CD O 3� Q v CD NC 2L Ground Water Standard (mg/1) 0.01 0.7 0.002 0.01 0.015 0.001 0.02 0.02 250 500 6.5 - 8.5 NE NE NE NE NE Jul-04 0.028 0.19 <0.001 <0.01 0.068 <0.01 <0.01 490 MW-is Dec-05 0.02 0.17 <0.001 <0.01 0.042 <0.01 <0.01 608 Oct-06 0.012 0.472 <0.001 <0.01 0.052 0.00064 <0.01 <0.01 740 May-07 <0.01 0.458 <0.001 <0.01 0.00047 <0.01 <0.01 420 Nov-07 <0.01 0.529 <0.001 <0.01 0.031 0.00089 <0.01 <0.01 520 Jun-08 <0.01 0.619 <0.001 <0.01 0.011 0.00051 <0.01 <0.01 470 Jan-09 <0.01 0.416 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 210 Jun-09 <0.01 0.412 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 220 Dec-09 <0.01 0.256 0.001 <0.01 <0.010 <0.0002 0.022 <0.01 160 Jun-10 0.012 0.691 0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 280 Dec-10 <0.01 0.599 0.003 <0.01 <0.010 <0.0002 <0.01 <0.01 400 Jun-11 <0.10 0.475 <0.01 <0.10 <0.10 <0.00028 <0.10 <0.10 590 Dec-11 <0.050 0.422 <0.005 <0.050 <0.050 <0.0002 <0.050 <0.050 170 Jun-12 <0.01 0.419 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 150 Dec-12 0.018 0.567 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 180 Jun-13 <0.01 0.174 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 75 Apr-12 <0.01 0.163 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 99 Jun-14 <0.01 0.25 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 110 Dec-14 <0.01 0.408 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 310 Jun-18 <0.015 0.24 <0.005 <0.030 <0.01 <0.0002 <0.02 <0.01 320 8,100 5.8 27.0 14,679 5 47 0.18 Jan-19 <0.015 0.27 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 270 4,700 6.0 6.4 4,305 7 4 0.53 Jun-19 <0.015 0.28 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 320 7,400 5.8 21.4 11,617 9 -51 0.19 Mar-20 <0.015 0.22 <0.005 <0.01 0.03 <0.0002 <0.02 <0.01 480 8,500 6.0 17.0 14,566 5 2 0.25 Nov-20 <0.015 0.26 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 400 8,500 5.6 23.8 8,023 2 -116 0.43 Jul-04 <0.01 0.54 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 13 MW-11) Dec-05 <0.01 0.36 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 7.7 Oct-06 <0.01 0.341 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 20 May-07 <0.01 0.343 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 12 Oct-07 <0.01 0.365 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 11 Jun-08 <0.01 0.334 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 14 Jan-08 <0.01 0.356 NR NR <0.010 <0.0002 NR NR 14 Jun-09 <0.01 0.403 NR NR <0.010 <0.0002 NR NR 20 Jun-18 <0.01 0.66 <0.005 <0.01 <0.010 <0.0002 <0.02 <0.01 19 8,200 6.9 25.6 1,221 3 -93 0.18 Jan-19 <0.01 0.67 <0.005 <0.01 <0.010 <0.0002 <0.02 <0.01 17 750 6.9 8.9 1,165 7 -46 0.85 Jun-19 <0.01 0.66 <0.005 <0.01 <0.010 <0.0002 <0.02 <0.01 13 800 6.8 22.4 1,374 11 -56 0.23 Mar-20 <0.01 0.67 <0.005 <0.01 <0.010 <0.0002 <0.02 <0.01 13 730 7.0 18.2 1,344 9 11 1.97 Nov-20 <0.01 0.6 <0.005 <0.01 <0.010 <0.0002 <0.02 <0.01 16 810 6.9 24.4 1,304 2 -68 0.40 Page 1 of 8 DRAFT Swift Creek Tables 2020 11.xlsx/Table A1-Historic Groundwater APPENDIX Al GROUNDWATER ANALYTICAL RESULTS SUMMARY SWIFT CREEK STRUCTURAL FILL - CCB0057 BATTLEBORO, NORTH CAROLINA Sample Location / ID Date D m 3 OD v c' 3 (� n 3 c' 3 n o o 3 c �' 3 r Q 0 c (n CD 3 c' 3 u? < m cn v m O o O m a O = N 9 N u) 3 CD CD v c' c v 3 7 o c N < �' c L7 C LI v �' _U O .-a O v' n Q v 3 -O' < 0 (N (N O CD O 3 x n . CD NC 2L Ground Water Standard (mg/1) 0.01 0.7 0.002 0.01 0.015 0.001 0.02 0.02 250 500 6.5 - 8.5 NE NE NE NE NE Jun-04 <0.01 <0.10 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 32 MW-2S Dec-05 <0.01 0.18 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 10.1 Oct-06 <0.01 0.198 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 <5 May-07 <0.01 0.232 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 4.4 Oct-07 <0.01 0.256 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 3.6 Jun-08 <0.01 0.103 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 4.4 Jan-09 <0.01 0.164 NR NR <0.010 <0.0002 NR NR <5 Jun-09 <0.01 0.173 NR NR <0.010 <0.0002 NR NR <5 Dec-09 <0.01 0.218 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 <5 Jun-10 <0.01 0.229 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 <5 Dec-10 <0.01 0.235 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 <5 Jun-11 <0.01 0.182 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 <5 Dec-11 <0.01 0.216 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 <5 Jun-12 <0.01 0.178 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 <5 Jun-13 <0.01 0.21 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 <5 Apr-12 <0.01 0.199 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 <5 Jun-14 <0.01 0.165 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 <5 Dec-14 <0.01 0.2 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 <5 Jun-18 <0.015 0.13 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 <1 790 6.3 21.0 448 0 -36 0.18 Jan-19 <0.015 0.21 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 <1 400 6.9 10.0 611 5 -124 0.55 Jun-19 <0.015 0.24 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 <1 430 7.0 20.8 641 2 -152 0.18 Mar-20 <0.015 0.28 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 <1 400 6.9 16.8 759 4 -146 0.36 Nov-20 <0.015 0.24 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 <1 400 6.3 21.3 732 15 -120 0.34 MW-2D Jun-04 <0.01 0.17 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 5.6 Dec-05 <0.01 0.3 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 3.1 Oct-06 <0.01 0.29 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 11 May-07 <0.01 0.254 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 2.9 Oct-07 <0.01 0.273 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 4.8 Jun-08 <0.01 0.265 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 22 Jan-09 <0.01 0.253 NR NR <0.010 <0.0002 NR NR 16 Jun-09 <0.01 0.289 NR NR <0.010 <0.0002 NR NR 6.3 Jun-18 <0.015 0.13 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 <1 790 7.1 25.0 444 10 18 1.30 Jan-19 <0.015 0.30 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 1.5 310 7.2 9.7 474 5 -94 880.38 Jun-19 <0.015 0.29 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 <1 330 7.3 20.0 501 10 -63 0.27 Mar-20 <0.015 0.29 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 <1 300 7.1 19.4 540 2 75 0.52 Nov-20 <0.015 0.27 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 1.3 300 7.1 22.0 529 3 -86 0.34 Page 2of8 DRAFT Swift Creek Tables 2020 11.xlsx/Table A1-Historic Groundwater APPENDIX Al GROUNDWATER ANALYTICAL RESULTS SUMMARY SWIFT CREEK STRUCTURAL FILL - CCB0057 BATTLEBORO, NORTH CAROLINA O N 0 (N 9 N _U O (N O (� n (n o u) 3 3 7 .-a O CD D OD n o CD cn O CD CD o c c v' n Q O Sample m v 3 o 3 r 0 3 u? = m N �. n s v 3� Q Location / ID Date 3 C' 3 c' 3 c m 3 N Q c � c' 3 < m ill d -O = c' c v < �' C LI v �' ' 5' G v CD NC 2L Ground Water Standard (mg/1) 0.01 0.7 0.002 0.01 0.015 0.001 0.02 0.02 250 500 6.5 - 8.5 NE NE NE NE NE Dec-05 <0.01 <0.0002 <0.01 <0.01 334 MW-3 Oct-06 <0.01 0.192 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 580 May-07 <0.01 0.342 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 570 Nov-07 <0.01 0.133 <0.001 <0.01 0.036 <0.0002 <0.01 <0.01 380 Jun-08 <0.01 0.145 <0.001 <0.01 0.022 <0.0002 <0.01 <0.01 370 Jan-09 <0.01 0.144 <0.001 <0.01 0.013 <0.0002 <0.01 <0.01 550 Jun-09 <0.01 0.202 <0.001 <0.01 0.081 <0.0002 <0.01 <0.01 570 Dec-09 0.012 0.192 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 710 Jun-10 0.011 0.094 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 840 Dec-10 <0.01 0.125 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 690 Jun-11 <0.10 0.119 <0.01 <0.10 <0.10 <0.0002 <0.10 <0.10 790 Dec-11 <0.01 0.234 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 410 Jun-12 <0.01 0.125 <0.001 <0.01 <0.01 <0.0002 <0.05 <0.01 1,000 Dec-12 0.013 0.136 <0.001 <0.01 <0.01 <0.0002 0.011 <0.01 910 Jun-13 <0.10d 0.201 <0.01 d <0.1 d <0.1 d <0.0002 <0.1 d <0.1 d 950 Apr-12 <0.050d 0.162 <0.005d <0.05d <0.05d <0.0002 <0.05d <0.05d 890 Jun-14 <0.027d 0.116 <0.002d <0.07d <0.01d <0.0002 <0.025d <0.07d 970 Dec-14 <0.050d 0.151 <0.005d <0.05d <0.05d <0.0002 <0.05d <0.05d 760 Jun-18 <0.015 0.066 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 980 830 5.5 27.2 7,611 9 60 0.30 Jan-19 <0.015 0.088 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 930 130 -- 4.4 5,256 11 679 369.94 Jun-19 <0.015 0.072 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 1,000 4,400 5.2 22.9 6,520 10 -39 0.20 Mar-20 <0.015 0.044 <0.005 <0.01 0.014 <0.0002 <0.02 <0.01 580 1,600 5.6 16.0 2,456 10.8 -49 0.63 Nov-20 5.2 18.9 2,921 6.3 66 0.20 <0.015 0.049 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 710 25,000 Duplicate (FD-01) Nov-20 <0.015 0.26 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 370 6,400 -- -- MW-4 Dec-05 <0.01 0.46 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 5.7 Oct-06 <0.01 0.171 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 <5 May-07 <0.01 <0.100 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 8.6 Oct-07 <0.01 0.147 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 5.9 Jun-08 <0.01 0.198 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 5.4 Jan-09 <0.01 0.083 NR NR <0.010 <0.0002 NR NR 6.4 Jun-09 <0.01 0.349 NR NR <0.010 <0.0002 NR NR 7.7 Dec-09 <0.01 0.121 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 7.5 Jun-10 <0.01 0.181 <0.001 0.018 <0.010 0.0006 <0.01 <0.01 15 Dec-10 0.016 0.195 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 16 Jun-11 <0.01 0.227 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 28 Dec-11 <0.01 0.516 0.003 <0.01 0.021 <0.0002 <0.01 <0.01 51 Jun-12 <0.01 0.356 0.008 <0.01 0.032 <0.0002 <0.01 <0.01 100 Jun-13 <0.01 0.109 0.004 <0.01 0.021 0.00078 <0.01 <0.01 250 Apr-12 <0.01 0.167 0.006 <0.01 <0.010 <0.0002 <0.01 <0.01 130 Jul-14 <0.01 0.085 0.0017 <0.01 <0.010 0.00101 <0.01 <0.01 190 Dec-14 <0.01 0.071 0.0017 <0.01 <0.010 0.00111 <0.01 <0.01 260 Jun-18 <0.01 0.041 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 66 450 6.4 25.1 72 7 56 0.28 Jan-19 <0.01 0.044 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 46 320 6.7 9.3 499 13 52 0.83 Jun-19 <0.01 0.052 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 30 310 6.9 22.0 553 7 -91 0.47 Mar-20 <0.01 0.054 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 37 <25 6.5 16.0 455 5 -51 0.42 Nov-20 <0.01 0.061 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 29 250 6.3 43.0 442 10 43 0.52 Page 3 of 8 DRAFT Swift Creek Tables 2020 11.xlsx/Table A1-Historic Groundwater APPENDIX Al GROUNDWATER ANALYTICAL RESULTS SUMMARY SWIFT CREEK STRUCTURAL FILL - CCB0057 BATTLEBORO, NORTH CAROLINA O N 0 (N 9 N _U O (N O (� n (n o u) 3 3 7 .-a O CD D OD n o CD cn O CD CD o c c v' n Q O Sample m v 3 o 3 r 0 3 u? m v N L7 v -O' 3 x Location / ID Date 3 c' 3 c' 3 c �' 3 Q c c' 3 < m v m a O = c' v c < �' C LI v �' 3 < n . CD NC 2L Ground Water Standard (mg/1) 0.01 0.7 0.002 0.01 0.015 0.001 0.02 0.02 250 500 6.5 - 8.5 NE NE NE NE NE Dec-05 <0.01 0.45 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 6.1 MW-5S Oct-06 <0.01 0.121 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 7 May-07 <0.01 0.218 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 4.7 Oct-07 <0.01 0.278 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 4.9 Jun-08 <0.01 0.046 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 8.7 Jan-09 <0.01 0.051 NR NR <0.010 <0.0002 NR NR 10 Jun-09 <0.01 0.058 NR NR <0.010 <0.0002 NR NR 13 Dec-09 <0.01 0.056 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 17 Jun-10 <0.01 0.057 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 12 Dec-10 <0.01 0.102 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 14 Jun-11 <0.01 0.064 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 17 Dec-11 <0.01 0.087 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 21 Jun-12 <0.01 0.095 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 22 Dec-12 <0.01 0.131 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 25 Jun-13 <0.01 0.025 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 22 Apr-12 <0.01 0.088 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 21 Jun-14 <0.01 0.052 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 14 Dec-14 <0.01 0.082 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 21 Monitor Well Abandoned on 4/17/15 by NCDOT and replaced on 6/11/18 by MW-5RS MW-5RS Jun-18 <0.015 0.098 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 12 420 6.9 23.9 454 7 45 3.37 Jan-19 <0.015 0.10 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 3.4 260 6.6 12.6 382 2 78 0.99 Jun-19 <0.015 0.11 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 <1.0 320 7.0 25.3 594 9 -106 0.17 Mar-20 <0.015 0.09 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 3.1 230 6.6 16.4 363 4 -13 1.10 Nov-20 <0.015 0.10 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 3.1 290 7.0 22.0 477 1 -17 0.32 Dec-05 <0.01 0.17 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 8.1 MW-5D Oct-06 <0.01 0.236 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 6 May-07 <0.01 0.227 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 5.8 Oct-07 <0.01 0.258 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 6.6 Jun-08 <0.01 0.254 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 10 Jan-09 <0.01 0.255 NR NR <0.010 <0.0002 NR NR 10 Jun-09 <0.01 0.261 NR NR <0.010 <0.0002 NR NR 17 Monitor Well Abandoned on 4/17/15 by NCDOT and replaced on 6/11/18 by MW-5RD MW-5RD Jun-18 <0.01 0.15 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 26 230 7.3 23.0 327 20 29 0.12 Jan-19 <0.01 0.22 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 17 230 7.4 11.9 374 10 -125 730.47 Jun-19 <0.01 0.21 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 14 250 7.3 24.0 388 9 -94 0.21 Mar-20 <0.01 0.25 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 11 240 7.3 16.2 383 4 -1 2.09 Nov-20 <0.01 0.22 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 7.9 240 7.3 21.5 384 10 -120 0.67 Page 4of8 DRAFT Swift Creek Tables 2020 11.xlsx/Table A1-Historic Groundwater APPENDIX Al GROUNDWATER ANALYTICAL RESULTS SUMMARY SWIFT CREEK STRUCTURAL FILL - CCB0057 BATTLEBORO, NORTH CAROLINA Sample Location / ID Date D m 3 OD v c' 3 (� n 3 c' 3 n o o 3 c m 3 r m Q 0 c � (n CD 3 c' 3 u? < m cn = fli O o O m fl- O = N 9 N u) 3 CD CD N c' c v 3 7 o c �. < �' c s C L v �' _U O .-a O v' n Q v 5" G 0 (N (N O CD O 3� Q v CD NC 2L Ground Water Standard (mg/1) 0.01 0.7 0.002 0.01 0.015 0.001 0.02 0.02 250 500 6.5 - 8.5 NE NE NE NE NE Dec-05 <0.01 1.3 <0.001 <0.01 0.01 <0.0002 <0.01 <0.01 174 MW-6 Oct-06 <0.01 0.816 <0.001 <0.01 0.013 <0.0002 <0.01 <0.01 510 May-07 <0.01 0.312 <0.001 <0.01 0.032 <0.0002 <0.01 <0.01 220 Nov-07 <0.01 0.12 <0.001 <0.01 0.074 0.00026 <0.01 <0.01 290 Jun-08 <0.01 0.08 <0.001 <0.01 0.054 0.00091 <0.01 <0.01 490 Jan-09 0.066 NR NR 0.014 <0.0002 NR NR 560 Jun-09 0.018 0.155 NR NR 0.016 0.00026 NR NR 430 Dec-09 0.014 0.126 <0.001 <0.01 0.01 <0.0002 <0.01 <0.01 220 Jun-10 0.109 0.313 <0.001 <0.01 0.155 0.0003 <0.01 <0.01 300 Dec-10 0.018 0.138 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 350 Jun-11 0.717 <0.01 <0.10 <0.10 0.00095 <0.10 <0.10 460 Dec-11 0.148 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 260 Jun-12 0.156 <0.001 <0.01 <0.01 <0.0002 <0.05 <0.01 330 Dec-12 0.031 0.131 <0.001 <0.01 <0.01 <0.0002 0.012 <0.01 270 Jun-13 0.152 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 270 Apr-12 0.247 <0.005d <0.05d <0.05d <0.0002 <0.05d <0.05d 300 Jun-14 0.0189 0.193 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 260 Dec-14 0.099 0.155 <0.005d <0.05d 0.122 <0.0002 <0.05d <0.05d 660 Jun-18 0.043 0.047 <0.005 <0.01 0.045 <0.0002 <0.02 <0.01 1,000 6,300 3.9 25.3 9,665 0 196 0.78 Jan-19 0.039 0.077 <0.005 <0.01 0.022 <0.0002 <0.02 <0.01 870 3,600 3.8 8.3 4,993 4 290 975.76 Jun-19 0.083 0.086 <0.005 <0.01 0.074 <0.0002 <0.02 <0.01 760 7,100 3.8 22.0 11,164 5 45 0.20 Mar-20 0.073 0.11 <0.005 <0.01 0.160 <0.0002 <0.02 <0.01 740 7,000 3.7 16.6 11,118 2 246 0.28 Nov-20 0.066 0.078 <0.005 <0.01 0.085 <0.0002 <0.02 <0.01 820 7,700 3.5 23.0 9,811 1 294 0.20 Dec-05 0.038 <0.001 <0.01 0.093 <0.0002 <0.01 <0.01 379 MW 7 Oct-06 0.03 0.059 <0.001 <0.01 0.053 <0.0002 <0.01 <0.01 500 May-07 0.017 <0.100 <0.001 <0.01 0.047 0.0003 <0.01 <0.01 460 Nov-07 0.029 <0.100 <0.001 <0.01 0.124 0.00072 <0.01 <0.01 250 Jun-08 0.019 0.042 <0.001 <0.01 0.072 <0.01 <0.01 420 Jan-09 0.022 0.052 <0.001 <0.01 0.088 <0.0002 <0.01 <0.01 500 Jun-09 0.072 0.08 <0.001 <0.01 0.171 <0.0002 <0.01 <0.01 500 Dec-09 0.128 0.123 <0.01 <0.01 0.273 0.0006 <0.10 <0.10 490 Jun-10 0.208 0.172 <0.01 <0.01 0.379 0.0002 <0.10 <0.10 530 Dec-10 0.23 0.255 <0.01 <0.01 0.649 0.00057 <0.10 <0.10 590 Jun-11 0.134 0.159 <0.01 <0.10 0.396 0.00033 <0.10 <0.10 540 Dec-11 0.107 0.172 <0.01 <0.10 0.468 <0.0002 <0.10 <0.10 640 Jun-12 0.059 0.12 <0.005 <0.05 0.27 <0.0002 <0.05 <0.05 580 Dec-12 0.158 <0.01 <0.10 0.397 <0.0002 <0.10 <0.10 700 Jun-13 0.114 <0.01d <0.10d 0.19 <0.0002 <0.10d <0.10d 600 Apr-12 0.07 0.119 <0.05d <0.050d 0.235 <0.0002 <0.050d <0.050d 470 Jun-14 0.078 0.093 <0.002d <0.007d 0.139 <0.0002 <0.025d <0.010d 670 Dec-14 0.167 0.205 <0.05d <0.050d 0.553 <0.0002 <0.050d <0.050d 710 Jun-18 0.041 0.1 0.0074 <0.02 0.089 <0.0002 <0.02 <0.01 770 9,400 3.8 23.0 13,584 2 243 1.37 Jan-19 0.089 0.097 <0.005 <0.01 0.190 <0.0002 <0.02 <0.01 920 8,100 3.8 8.1 10,375 2 250 0.97 Jun-19 0.077 0.16 0.012 <0.01 0.160 <0.0002 <0.02 <0.01 630 10,000 3.7 21.5 15,916 9 128 0.31 Mar-20 0.093 0.13 0.012 <0.01 0.260 <0.0002 <0.02 <0.01 770 10,000 4.0 12.0 16,317 5 193 0.41 Nov-20 0.089 0.14 <0.005 <0.01 0.260 <0.0002 <0.02 <0.01 640 12,000 3.5 20.9 16,203 3 259 0.24 Page 5of8 DRAFT Swift Creek Tables 2020 11.xlsx/Table A1-Historic Groundwater APPENDIX Al GROUNDWATER ANALYTICAL RESULTS SUMMARY SWIFT CREEK STRUCTURAL FILL - CCB0057 BATTLEBORO, NORTH CAROLINA O N 0 (N 9 N _U O (N O (� n (n o u) 3 3 7 .-a O CD D OD n o CD cn O CD CD o c c v' n Q O Sample m v 3 o 3 r 0 3 u? m v N L7 v -O' 3 x Location / ID Date 3 c' 3 c' 3 c �' 3 Q c c' 3 < m v m a -O = c' c v < �' C LI v �' 3 < n . CD NC 2L Ground Water Standard (mg/1) 0.01 0.7 0.002 0.01 0.015 0.001 0.02 0.02 250 500 6.5 - 8.5 NE NE NE NE NE MW-8 May-07 0.025 <0.001 <0.01 0.024 <0.0002 <0.01 <0.01 400 Nov-07 0.03 <0.001 <0.01 0.038 <0.0002 <0.01 <0.01 430 Jun-08 0.031 0.048 <0.001 <0.01 0.027 <0.0002 <0.01 <0.01 300 Jan-09 0.028 0.039 NR NR 0.032 <0.0002 NR NR 350 Jun-09 0.159 0.114 NR NR 0.173 0.0003 NR NR 460 Dec-09 0.569 <0.016 <0.050 0.0002 <0.135 <0.095 460 Jun-10 0.366 0.232 <0.016 <0.050 0.283 0.0002 <0.135 <0.095 500 Dec-10 0.267 0.243 <0.01 <0.100 0.369 0.0013 <0.100 <0.100 470 Jun-11 0.207 0.223 <0.01 <0.100 0.103 <0.0002 <0.100 <0.100 410 Dec-11 <. 0.321 <0.01 <0.100 1 <0.0002 <0.100 <0.100 270 Jun-12 0.146 0.169 <0.005 <0.05 0.199 <0.0002 <0.05 <0.05 580 Dec-12 0.11 0.168 <0.01 <0.100 0.234 <0.0002 <0.10 <0.10 580 Jun-13 0.14 0.172 <0.01d <0.100d 0.169 <0.0002 <0.10d <0.10d 620 Apr-12 0.126 0.177 <0.05d <0.050d 0.211 <0.0002 <0.050d <0.050d 510 Jun-14 0.154 0.13 <0.002d <0.007d 0.168 <0.0002 <0.025d <0.010d 700 Dec-14 0.124 0.143 <0.05d <0.050d 0.263 <0.0002 <0.050d <0.050d 620 Jun-18 0.055 0.056 <0.005 <0.02 0.10 <0.0002 <0.02 <0.01 1,000 8,400 3.9 19.0 11,539 0 125 0.69 Jan-19 0.1 0.093 <0.005 <0.01 0.100 <0.0002 <0.02 <0.01 870 7,800 3.8 9.2 11,013 5 216 0.64 Jun-19 0.092 0.092 <0.005 <0.01 0.190 <0.0002 <0.02 <0.01 780 9,900 3.9 20.5 14,721 2 92 0.33 Mar-20 0.09 0.1 <0.005 <0.01 0.150 <0.0002 <0.02 <0.01 710 8,100 3.9 13.3 13,074 38 251 0.76 Nov-20 0.078 0.092 <0.005 <0.01 0.230 <0.0002 <0.02 <0.01 660 16,000 3.4 20.4 13,803 5 204 0.59 All concentrations in milligrams per liter (mg/L) unless otherwise noted NE - Not established -- - Not sampled Bold with gray background indicates exceedance of NC 2L Groundwater Standard Page 6of8 DRAFT Swift Creek Tables 2020 11.xlsx/Table A1-Historic Groundwater APPENDIX A2 SURFACE WATER ANALYTICAL RESULTS SUMMARY SWIFT CREEK STRUCTURAL FILL - CCB0057 BATTLEBORO, NORTH CAROLINA 0 9 Q CDN. x a N/ ° CDn U p ° O < D CD CL D W a o m to a n m `N°- � c ° Z c 5, a - O x Sample 3 N _m c _3 0 3 r _� cn c_ o v 6 c `� Location / ID Date c 3 3 5 3 c 3 m e `. 3 v Q c � c 3 � m m o � _ V z � z < b m NC 2B Surface Water Standard - Class C (ug/1) 87 0.15 1 NE 1 0.002 h 0.05 h 0.025 1 0.000012 1 0.005 1 0.00006 1 NE I NE 1 6.0 - 9.0 1 NE I NE 1 50 1 NE 1 >5.0 04/03/03 <0.01 <0.10 <0.001 <0.01 <0.005 <0.0002 <0.01 <0.01 12 SW-01 06/22/04 <0.01 <0.10 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 <2.0 12/01 /05 <0.01 <0.10 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 6.3 10/06/06 <0.01 <0.10 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 <5 Surface Water - Upstream 05/04/07 <0.01 <0.10 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 6.6 10/22/07 <0.01 <0.10 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 3.8 06/18/08 <0.01 <0.10 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 2.5 01/14/09 <0.01 <0.10 NR NR <0.01 <0.0002 NR NR 5.6 06/24/09 <0.01 0.03 NR NR <0.01 <0.0002 NR NR <5 12/16/09 <0.01 0.048 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 6.2 06/30/10 <0.01 0.032 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 <5 12/14/10 <0.01 0.025 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 <5 06/27/11 <0.01 0.041 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 <5 12/19/11 <0.01 0.025 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 <5 12/18/12 <0.01 0.028 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 <5 06/25/13 <0.01 0.04 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 <5 04/13/12 <0.01 0.025 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 5.3 06/27/14 <0.01 0.03 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 <5 12/17/14 <0.01 0.027 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 <5 06/28/18 <0.015 0.031 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 <1 73 6.95 28.46 101 vl -2.5 4.2 01 /21 /19 <0.015 <0.015 0.090 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 6.1 79 7.84 6.50 107 11.0 37.1 19.2 06/17/19 <0.015 <0.015 0.058 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 1.7 110 8.21 27.00 91 139.0 -130.0 2.1 03/09/20 <0.015 0.046 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 3.4 110 6.65 13.00 176 14.4 -45.6 8.4 11 /09/20 <0.015 <0.015 0.032 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 1.8 91 6.79 15.20 94 9.7 26.2 4.2 04/03/03 <0.01 <0.10 <0.001 <0.01 <0.005 <0.0002 <0.01 <0.01 12 SW-02 06/22/04 <0.01 <0.10 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 <2.0 12/01 /05 <0.01 <0.10 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 6.3 10/06/06 <0.01 0.09 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 <5 Surface Water - Downstream 05/04/07 <0.01 <0.10 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 6.6 10/22/07 DRY <0.0002 <0.01 <0.01 3.8 08/07/08 <0.01 <0.10 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 2.5 01/14/09 <0.01 <0.10 NR NR <0.01 <0.0002 NR NR 5.6 06/24/09 <0.01 0.088 NR NR <0.01 <0.0002 NR NR <5 12/16/09 <0.01 0.025 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 6.2 06/30/10 DRY <0.0002 <0.01 <0.01 <5 12/14/10 <0.01 0.034 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 <5 06/27/11 DRY <0.0002 <0.01 <0.01 <5 12/19/11 <0.01 0.027 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 <5 12/18/12 <0.01 0.031 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 <5 06/25/13 <0.01 0.037 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 <5 04/13/12 <0.01 0.023 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 5.3 06/27/14 <0.01 0.038 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 <5 12/17/14 <0.01 0.027 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 <5 06/28/18 <0.015 0.089 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 <1 130 6.98 29.68 369 90.0 -0.4 0.7 01 /21 /19 <0.005 <0.01 0.027 <0.0002 <0.02 <0.01 <0.0002 <0.02 <0.01 7 100 5.81 3.60 171 6.6 139.6 14.2 06/17/19 <0.005 <0.01 0.052 <0.0002 <0.02 <0.01 <0.0002 <0.02 <0.01 <1 150 5.76 26.10 225 23.4 44.2 1.6 03/09/20 <0.015 <0.025 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 4.9 98 6.94 13.40 166 5.2 -39.0 9.8 11 /09/20 <0.015 0.039 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 1.1 91 6.41 19.30 133 11.0 -72.0 13.0 Page 7 of 8 DRAFT Swift Creek Tables 2020 11.xlsx/Table A2-Historic Surface Water APPENDIX A2 SURFACE WATER ANALYTICAL RESULTS SUMMARY SWIFT CREEK STRUCTURAL FILL - CCB0057 BATTLEBORO, NORTH CAROLINA Sample Location / ID Date D 3 c 3 D N 3 5 W _m c 3 a _3 c 3 o 0 3 m e `. 3 r v Q c � m _� c 3 cn � to c_ m m 9 N/ ° a o o � _ Q CDN. CD CDn n m `N°- v V � c ° z c Z 6 � z 0 x a U p ° v' a - c < b O < CL O x `� m NC 2B Surface Water Standard - Class C (ug/I) 87 0.15 1 NE 1 0.002 h 0.05 h 0.025 1 0.000012 1 0.005 1 0.00006 1 NE I NE 1 6.0 - 9.0 1 NE I NE 1 50 1 NE 1 >5.0 05/04/07 <0.01 <0.10 <0.001 <0.01 <0.01 <0.0001 <0.01 <0.01 2.4 SW-03 10/22/07 DRY 06/18/08 <0.01 0.089 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 3.3 01/14/09 <0.01 <0.10 NR NR <0.01 <0.0002 NR NR 20 Surface Water - Downstream 06/24/09 <0.01 0.087 NR NR <0.01 <0.0002 NR NR <5 12/16/09 <0.01 0.075 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 14 06/30/10 <0.01 0.328 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 47 12/14/10 <0.01 0.074 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 16 06/27/11 DRY 12/19/11 <0.01 0.065 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 8 12/18/12 <0.01 0.067 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 6.5 06/25/13 <0.01 0.087 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 7.4 04/13/12 <0.01 0.051 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 23 06/27/14 <0.01 0.038 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 <5 12/17/14 <0.01 0.08 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 9.9 06/28/18 <0.015 0.032 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 <1 76 NM NM NM NM NM NM 01/21/19 <0.015 0.03 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 31 160 5.6 6.3 257 14.5 138 13.1 06/17/19 <0.015 0.025 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 <1 99 5.7 26.4 235.5 19.7 48.4 5.06 03/09/20 <0.015 0.035 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 9.8 94 6.3 10.5 265.4 6.98 55.1 8.9 11 /09/20 <0.015 <0.025 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 2.5 67 6.8 18.3 325.3 11.4 63.4 3.78 All concentrations in micrograms per liter (ug/L) unless otherwise noted NE - Not established -- - Not sampled NM - Not measured Bold indicates exceedance of NC 2B Water Quality Standard h = hardness dependent dissolved metal standard Page 8 of 8 DRAFT Swift Creek Tables 2020 11.xlsx/Table A2-Historic Surface Water DRAFT WATER QUALITY MONITORING REPORT— NOVEMBER 2020 APPENDIX B FIELD SHEETS November 2020 www.erm.com Version: 1.0 Project No.: 0397281 Client: ReUse Technology February 2021 P:\Projects\0397281 ReUse CAP Implementation Swift Cr.DW\Post Closure Monitoring\2020-11 GWS\DRAFT_Swift Creek Water Quality Monitoring Report 02-09-2021 TW CM.docx WATER MATRIX SAMPLING ko FIELD DATA FORM ERR Site Name: Swift Creek Sample Type: Circle one - ( Official Hilo W , Job #: DPT, Surface Water, Potable WSW; other) 397281 Sample ID: PV 0 Date: ' /?% Sampling Personnel: Jordan Woodruff e<usfln Smi Weather Conditions: army Partly Cloudy, Cloudy, Rain; r Time: I '-t ti- Well Type: Flush Surface Completion, pK �Up Gompl iefi Well Tag Present: e � No Well Locked: a No Lock Present: es No Well ID info. on Tag: es No Well Bolted: Yes, N , / Well Cap:?0psw No Well Cap Condition: LGoqd, Replace, Other; Well Pad Condition: oo Cracked, Replace, Other: Well Location: Gra' , Asphalt, Concrete, Woods, Other; Additional Comments: Total Depth of Well (T.D.):� Screen Length: 5, t0 ' 15, 20 feet -other: Depth to Water D.T.W : (') Well Diameter: 4, s, 8 Inches -other: Field Parameters measured with: Casing Type: VC steel other: Purge Rate: t ; mUrnin Sampling Device: ristalti Monsoon, Grundfos, Bailer, PDB, Other: Tubing Type: Fdlyeth e Measuring Point: -0� other: Pump Intake (ft below M.P.): Color: ,J� Odor: Yes, Not Time: min Volume Pur ed DTW: feet Temp CC) pH aid units SPC uS/cm DO m /L ORP mV Turb NTU Comments: Stabalization Criteria2 (gallons) (see note below)3 +/- 3'%. +/- 0.1uniit +/- 3% +/- 10% +/- 10 mV +/- 10%4 C/): J t ') u , ?51W?4 q 3 a e ,> o 1o5(.0 1,0 - . Ln a I 714t> 6,Es45 L 3.t Ia 11:i e. 3-co ( u Y k "� . it �s J t t 4 s to Sampling Date &Time:—____��---- Samples Collected: Analysis Requested: Preservative: Hold Time (days): Lab: EPA 6010(selectmetals) EPA 300.0 (Sulfates) SM 2540C /Total pissolved Solidsl ` Noes: (1)- Da not measure tleplh to bel(om a(well until after pu,ging antl sampling la retluce resuspentlln9 ftnes IM1at may be reslin9 on IM1e well bottom. (2j-Slebllizatlon cdtada basetl on Ihrae moss recent consecutive measurements. (3)-Total tlrawtlown In well to be less tM1an 0.1 m (0.32 fl). POr910g tale io be lowered as nesossary to keep tlrawtlown below 0.1 m (0.32 ft). (4)+/. 10%when turbIdIty Is over 10 NTUs. WATER MATRIX SAMPLING FIELD DATA FORM ERllil Site Name: Swift Creek Sample Type: Circle one - Job #: (Monitor Well, DPT, Surface Water, Potable WSW; other) 397281 Sample ID: rM —:'� � k%(-i -2 PJ Date: �n Sampling Personnel: Jordan Woo ruff Austin Smith Weather Conditions: n Partly Cloudy, Cloudy, Rain; Other Time: Well Type: Flush Surface Completion, Sti Up Comple' n Well Tag Present: e , No Well Locked: a No Lock Present: ,._e , No Well ID info. on Tag: e , No Well Bolted: Yes, Well Cap: No Well Cap Condition: oo , Replace, Other; Well Pad Comdleton: Good, Cracked, Replace, Other: Well Location: ras , Asphalt, Concrete, Woods, Other; Additional Comments: w .� Total Depth of Well (T.DJ: c; Screen Length: 5, 15, 20 ,feet -other: De th to Water D.T.W : t'I . 4y`.� Well Diameter: �i 4, 6, s Inches -other: Field Parameters measured with: "[ Casing Type: Steel other: Purge Rate: � (n:r" mL/min Sampling Device: eristal c, Monsoon, Grundfos, Bailer, PDB, other: Tubing Type: Polyethylene Measuring Point: TOC other: Pump Intake (ft below M.P.): � � Color: � (aivd Odor: Yes, No Time: min Volume Pur ed DTW: feet Temp (°c) pH std units SpC uS/cm DO m /L ORP mV Turb NTU Comments: Stabalization Criteria2 (gallons) (see note below)' +/- 3% +!- 0.1 unit +/- 3% +/- 10% +/- 10 mV +/- 10%° Official Sampling Date &Time: d (��(� I �( �`� Samples Collected: Analysis Requested: Preservative: EPA 6010 (select metals) EPA 300.0 (Sulfates) SM 2640C (Total Dissolved Snlidsl Notes: (1) - Oa not measure tleplh to bottom of well unlll afle/ purging antl sampling to retluca /esuspentling foes Thal may he resgng on the well bottom. (2) - Slabllizallan ctllerla basetl on 11,ree most recent cansecmlve measurements. (3) - Total tlrawtlown In well to ba Iesx Than 0.1 m (0.32 n). Purging mle to be 1°weretl as necessary to keep tlmwtlown below0.1 m (0.32 fl). (d)+/-10%when IorblClly Is Duet 10 NTUs. Hold Time (days): Lab: WATER MATRIX SAMPLING FIELD DATA FORM ER Site Name: Sample Type: Swift Creek, Circle one - onitor W Job #: Its DPT, Surface Water, Potable WSW; other) 397281 Sample ID: Date: t Sampling Personnel: Jordan Woodruff "ustin S h%' Weather Conditions: Sunny, 11aly Clou -, Cloudy, Rain; Other Time: 75 Well Type: Flush Surface Completion, ck-Up Completio ../` Well Tag Present: fesj No Well Locked: Ye , No Lock Present: es,`tNo Well ID info. on Tag: s No Well Bolted: Yes, No,Good/A'' Well Cap: Yes, 0' Well Cap Condition: Good, Replace, Other, L bwc. Well Pad Condition: , Cracked, Replace, Other. �i Well Location Grass,' Asphalt, Concrete, oods, Other; Additional Comments: Total Depth of Well (T.D.): (G Screen Length: 41, p 15, 20 feet -other: Depth to Water D.T.W : (1) ' `7 j Well Diameter: 2 41 6, 6 Inches -other: Field Parameters measured with: MI A)A Casing Type: /i5V q, Steel other: Purge Rate: ,r}'ice mUmin Sampling Device: f2nstai ic, Monsoon, Grundfos, Bailer, PDB, Other: Tubing Type: Poy thy( ne Measuring Point: Pump Intake elaw M.P.): Color: Odor: Yes, �No} Time: min Volume Purged DTW: feet Temp CC) pH std units SPC uS/cm DO m /L ORP mV Turb NTU Comments: Stabalization Criteria' (gallons) (see note below)" +/- 3% +/- 0.1 unit +/- +/- 10% +/- 10 my +/. 10%4 ' t✓�1 .� �. /.�. ,�2,�. l<i.Cf .,.s3% L4'=7( !. J' -; � Tat. r�> 3.5'L1.Lt ltca 3ci.L )``{l(r ..eS -S i:.3 Cs% F Y, s C>. `r 'j 0'�' . L ot 1 . c L Official Sampling Date &Time: k � %`t / ('�( Samples Collected: Analysis Requested: Preservative: EPA 6010 (select metals) EPA 300.0 (Sulfates) SM 2540C (Tetal Dissolved Solidsl Notes: (1) - Do not measure tlepth to bollom alwell until alter purging antl samplin9lo retluca resuspentling foes Thal may be resling on the well bollom. (2) - Stebllizailon cnleda based on IM1ree mall recent consecutive measurements. (0) - Total tlrawdown In well to be less Than 0.1 m (O.J2 fl). Purging ralo to be loweretl as necessary to keep tlrawtlown below 0.1 m (0.02 fl). (4)+1-10%when turbidity Is over 10 WUs. old HTime (days): Lab: WATER MATRIX SAMPLING ko FIELD DATA FORM ER Site Name: Swift Creek Job #: Sample Type: Circle one - (Monitor Well, DPT, Surface Water, Potable WSW; other) 397281 Sample ID: to W-ozp•- G-2020 gyp` Date: { l/2!� Sampling Personnel: Jordan WoodruF Austin Smith Weather Conditions: Sunny, F4fQIy-do3lp Cloudy, Rain; Other Time: 5 S' Well Type: Flush Surface Completion, tick Up Q No Well Tag Present: I Well Locked: 0s, No 'Cogipl6tton Lock Present: 7Y.a , No Well ID info. on Tag: No Well Bolted: Yes, No, ` Well Cap: 7 e No Well Cap Condition: d, Replace, Other; Well Pad Condition: oo Cracked, Replace, Other: Well Location: a , Asphalt, Concrete, Woods, Other; Additional Comments: Total Depth of Well (T.D.): Screen Length: 5, (1 5, zo Feet -other: Depth to Water D.T.W : Well Diameter: C2, 4, 6, 8 Inches -other: Field Parameters measured with: vsx Z NAW/tCasing Type: , steel other: Purge Rate: ® (0 7 mL/min Sampling Device: rerist!95c, Monsoon, Grundfos, Bailer, PDB, Other: Tubing Type: Polyethylene Measuring Point: TOC other: Pump Intake (ft below M.P.): 7j Color: C W*'e Odor: Yes, No Time: min Volume Purged DTW: feet Temp (°C) std pH units SPC uS/cm DO m /L ORP mV Turb NTU Comments: Stabalization Criteria2 (gallons) (see note below)3 +/- 3% +/- 0.1 unit +/- 3% +/- 10% +/- 10 my +/- 10%4 �Ei3 L. 46 i 7 7 "i G07. 0 j. %f � 6; b L. Lf Lf ate,. r . 94 2 D 07 26V—.Ld1 .LS �7 °4 f Yd 5' 34 01 15 7•3 2 .1 13T i 0-3�1 -*-L-. 7-71 Official Sampling Date &Time: Samples Collected: Analysis Requested: Preservative: Hold Time (days): Lab: EPA 6010 (select metals) EPA 300.0 (Sulfates) SM 25411C (Total Dissolved Solidsl Notes: (1) - eo not measure depth to boltam of well until after purging and sampling la retluce resuspanding floes Thal maybe resting on the wall bcitom. (2) - Slabllizatlon cdleda base) on three most recent consecutive measurements. (3) - Total drawdown In well to be less Than 0.1 m (0.3211). Porging rete to be levered as necessary to keep dmwdown below 0.1 m (0.32 O). (4) +/-10%when turbidity Is over 10 NTUs. WATER MATRIX SAMPLING ko FIELD DATA FORM ERM Site Name: Swift Creek Sample Type: Circle one - Job #: (Monitor Well, DPT, Surface Water, Potable WSW; other) 397281 Sample ID: 1O It 10 Date: u7t'.7 iiq Sampling Personnel: Jordan Woodruff Austin Smith Weather Conditions: unn, Partly Cloudy, Cloudy, Rain; Other Time: Well Type: Flush Surface Completion, tiLk"fV�ompletio- Well Tag Present: s, No Well Locked:. No Lock Present: 19, No Well ID info. on Tag: keD No Well Bolted: Yes, @ A Well Cap: 6A, No Well Cap Condition: c o Replace, Other; Well Pad Condition: �d, Cracked, Replace, Other: Well Location: Asphalt, Concrete, Woods, Other; Additional Comments: Total Depth of Well (T.D.): 20 t- -- Screen Length: 5, 10 15, 20 feet -other: Depth to Water D.T.W : (1) • jY f f Well Diameter: , 4, 6, a Inches -other: Field Parameters measured with: f,�`. Casing Type: K V , Steel other: Purge Rate: ^ 0 do mUmin Sampling Device: Is b, Monsoon, Grundfos, Bailer, PDB, Other: Tubing Type: Polyethylene Measuring Point: TOC other: Pump Intake (ft below M.P.): (`t f'f Color. C404 Odor: Yes, No Time: min Volume Purged DTW: feet Temp CC) pH std units SpC uS/cm DO m /L ORP mV Turb NTU Comments: Stabalintion Criteria' (gallons) (see note below)3 +/- 3% +/- 0.1 unit +/- 3% +/- 10% +/- 10 mV +/- 10%4 5 q 25 2397 Z7,`-t$ I ij.5 b`, > 24-0 D.3T 1 ,'a $l5 Win- t5 5'.2 Lt,24 73 (s 27 sTY1 0Z;� 7 f 1, Official Sampling Date &Time: Samples Collected: Analysis Requested:' Preservative: Hold Time (days): EPA 6010 (select metals) EPA 300.0 (Sulfates) SM 2540C ITntal Dissolved Solids) Notes: (1)-e not measure tleplh to bollom otwell unlll after purging antl semplin8lo retluce resuspentlla9 floes lM1al may be resllnq on the wall bollom. (2) - slabilliallon criletla basetl on Three mast recent wnsecullve measurements. (3) -Total tlmwtlown in well to be less Than U.1 m (0 32 ft). Purging sale to be lowemtl as necessary to keep tlrawtlown below q.1 m (0.32 fl). (4) +1. 10%when tu,bltllly Is over 10 NTUs. Lab: WATER MATRIX SAMPLING FIELD DATA FORM �R� Site Name: Swift Creek Sample Type: Circle one - nitor Welt Job #: DPT, Surface Water, Potable WSW; other) 397281 Sample ID: Date: �a-a Sampling Personnel: Jordan Woodruff stin S ' Weather Conditions: nn Partly Cloudy, Cloudy, Rain; Other Time: SS S� � _._� . Well Type: Flush Surtace Completion; Slick Up Com ion Well Tag Present: es` No Well Locked: �; , No Lock Present: es No Well ID info. on Tag: e , No Well Bolted: es, No, TFl` Well Cap: Yes, d Well Cap Condition: Good, Replace, Other; n, ,,,,.c„ Well Pad Condition: Good, Cracked, Replace, Other: i�Jit Well Location: rass Asphalt, Concrete, Woods, Other, Additional Comments: Total Depth of Well (T.D.): � ° � Screen Length: 5,,. o 15, 20 feet -other: De th to Water D.T.W : tl1 , 5'c. Well Diameter: 4, 6, 8 Inches -other: Field Parameters measured with: Ys2 / r�N?l Casing Type: steel other: Purge Rate: �;.;, mL/min Sampling Device: ristaltic Monsoon, Grundfos, Bailer, PDB, Other: Tubin T pe: P yethyl ne Measurin Point: other: Pump Intake (ft a ow M.P.): (,,' Color: 's ,- Odor: Yes, Time: min Volume Pur ed DTW: feet Temp (°c) pH std units SpC uS/cm DO m /L ORP mV Turb NTU Comments: Stabalization Criteria2 (gallons) (see note below)' +/- 3% +/- 0.l unit +/, 3% +/- 10% +/- 10 mV +/- 10%° �€�� U 3� i�f.' �� 7.S �� . _� Irv, ^� `' t.Y ts.:#i `§"+ �,�i> GC3 1 `=, � o. v G A G5 G - r�S i9 m� �� .. � 5� � � Official Sampling Date &Time: t (/ � L:.� 3,� / � �'=� Samples Collected: Analysis Requested: Preservative: Hold Time (days): EPA 0010 (select metals) f-1N �. y , EPA 300.0 (Sulfates) � SM 2640C (Total Dissolved Solitlsl Notes: (1) - 0° not measure depth to boilom of well unlll after perging and sampling to retluce resospentlin9 foes Thal may be resling on the well betlom. (2) - Slablllzallon criteda based an Ihme moll recent consaculive measurements. (3) -Total drawdown In well to be less (hen 0.1 m (0.92 fl). Purging rele to be lowared as necessary Ic keep drawMown below 0.1 m (0.52 flj. (4)+1-10%when IUNItlIty Is over 10 NTUs. WATER MATRIX SAMPLING FIELD DATA FORM ER Site Name: Swift Creek Sample Type: Circle one -(Monitor Job #: 397281 Well, DPT, Surface Water, Potable WSW; other) Sample ID: M �Ci r-2-'9z,o 11 0 MW-i7v;�i Date: i IZ� Sampling Personnel: Jordan Woodruff Austin Smith Weather Conditions: y, Partly Cloudy, Cloudy, Rain; Other Time: 3If 4- Well Type: F u ompleti n, Stick Up Completion Well Tag Present: g , No Well Locked: ye), No Lock Present: 4(91, No Well ID info. on Tag: , e , No Well Bolted: e), No, N/A Well Cap: e , No Well Cap Condition: q oo. Replace, Other; Well Pad Condition: Good, Cracked, Replace, Other: Well Location: Grass, Asphalt, Concrete, Woods, Other; 4' 9e`",e Additional Comments: Total Depth of Well (T.D.): 7 12k Screen Length: 51 IQ 15, 20 feet -other: Depth to Water D.T.W : (1), 70 Well Diameter: 4, 6, 8 Inches -other: Field Parameters measured with: `OT Z 14AAIIVACasing Type: Steel other: Purge Rate: (o o mUmin Sampling Device: Pe isial ,Monsoon, Grundfos, Bailer, PDB, Other: Tubing Type: Polyethylene Measuring Point: TOC other: Pump Intake (ft below M.P.): t S Color: G ref Odor: Yes, No Time: min Volume Purged DTW: feet Temp (00) pH std units SpC uS/cm DO m /L ORP mV Turb NTU Comments: Stabalization -r Criteria (gallons) (see note below)' +/- 3% +/- 0.1 unit +/- 3% +/- 10% +/- 10 mV +/- 10%4 }£ 2 A6 `-ts7.3 ),49 '17 Lt 3 &G olic `f ¢i2.0 0-72 19. 7 2. 6 y 04-(5 (S�o 6-'7i 21 f6 46 500. 0-q2 -2f.s i, 5 042,o ova Orsry G. Z�.Y(.66 '0 11 2;7 77 0-32 -l7. z I�l J 3� Official Sampling Date &Time: / Samples Collected: Analysis Requested: Preservative: EPA 6010 (select metals) EPA 300.0 (Sulfates) SM 2.540C (Total Dissolved Solids) Notes: (1)- Oo not measure tleplh to hollam of well unlit after pur9ln9 and sampling to retluce resuspentlin9 floes (hat maybe resting on the well bottom. (2)-Siabllizallon crilerla based on Three most recent consecutive measurements. (J) -Total tlrawdawn In well Ic be less Than 0.1 m (0.32 fl). Purging rate to be loweretl as necessary la keep drawtlown below 0.1 m (0.3211). (4) a1-10%when lurbidlly Is over to NTUs. Hold Time (days): Lab: WATER MATRIX SAMPLING FIELD DATA FORM ERM Site Name: Swift Creek Sample Type: Circle one - Job #: 397281 (Monitor Well, DPT, Surface Water, Potable WSW; other) Sample ID: (,A,,:y..�_....._..- Date: (\ / � I o. Sampling Personnel: Jordan Woodruff i/stin Smit Weather Conditions: unn Y, Partly Cloudy, Cloudy, Rain; Other Time:t .� Well Type: Fluslt"SurfaceCoijapletion, Stick Up Completion Well Tag Present: es No Well Locked: ,e No Lock Present: Yes, No Well ID info. on Tag: es ` No Well Bolted: No, NIA Well Cap: Yes, No WeII Cap Condition: o ` Replace, Other; Well Pad Condltlon: ood Cracked, Replace, Other: Well Location: Grass, Asphalt, Concrete, Woods, Other;__(_w Additional Comments: ',k4 Total Depth of Well (T.DJ: I Screen Length: 50 , 15, 20 feet -other: Depth to Water D.T.W : (1) 6 0; Well Diameter: <OD 41 67 8 Inches -other: Field Parameters measured with: \ :s ; 14 A i( A Casing Type: -0, Steel other: Purge Rate: t - v mUnnin Sampling Device: ris I' , Monsoon, Grundfos, Bailer, POE, Other: Tubing Type: lyethyle a Measuring Point: O other: Pump Intake (ft below M.P.): 'S :S Color: C;(u.y Odor: - > Yes, Ciiip) Time: min Volume Purged DTW: feet Temp CC) pH std units SpC uS/cm DO m /L ORP mV Turb NTU Comments: Stabalization Criteria2 (gallons) (see note below)3 +/- 3% +/- 0.1unit +/- 3% +/- 10% +/- 10mv +/- 10%4 i i fV CSLv i 2A.a2 _kP 2 .e=. Official Sampling Date &Time: Samples Collected: Analysis Requested: Preservative: EPA 6010 (select metals) W Aj 4)g EPA 300.0 (Sulfates) --� SM 2640C (Total Dissolved Solids) Notes: (1) - Oo not measure tleplh to bollom o(well until aflar purging antl sampling to reduce resuspentling fines Thal may ba resiing on the well bottom. (2) - slabllizailon criteria basetl on three most ratan! consecutive measurements. (3) - Total tlrawtlown in well to be loss Ihen 0.1 m (0.32 fl). Purging tale to be lowered as necessary la keep drawtlown below 0.1 m (0.32 fl). (4)+1-10N4 when IuN dity Is over 10 NTUs. Hold Time (days): Lab: y�i1x � 1 y WATER MATRIX SAMPLING ko FIELD DATA FORM ER Site Name: Swift Creek Sample Type: Circle one -(Monitor Well, Job #: DPT, Surface Water, Potable WSW; other) 397281 Sample ID: Md1/- - 2. C> {J AA.w- tstx Date: 240 Sampling Personnel: Jordan Woodruff Austin Smith Weather Conditions: unn Partly Cloudy, Cloudy, Rain; Other Time: 12 z Well Type: Flush Surface Completion, ick Up Com 'e Well Tag Present: 62, No Well Locked: e , No Lock Present: es No Well ID info. on Tag: a No Well Bolted: Yes, O/ Well Cap: e , No Well Cap Condition: oo , Replace, Other; Well Pad Condition: Good, Cracked, Replace, Other: Well Location: Jre , Asphalt, Concrete, Woods, Other; Additional Comments: Total Depth of Well (T.D.): .. Screen Length: 5, 1 15, 20 feet -other: Depth to Water D.T.W : 111 Well Diameter: 4, 67 8 Inches -other: Field Parameters measured with: Casing Type: EV , Steel other: Purge Rate: : (,10 mL/min Sampling Device: PeGSta c, Monsoon, Grundfos, Bailer, PDB, Other: Tubing Type: Polyethylene Measuring Point: TOC other: Pump Intake (ft below M.P.): TT Color: Odor: Yes, No Time: min Volume Purged DTW: feet Temp CC) pH std units SpC uS/cm DO m /L ORP mV Turb NTU Comments: Stabalization Criteria2 (gallons) (see note below)3 +/- 3% +/- 0.1 unit +/- 3% +/- 10% +/- 10 mV +/- 10%4 (2i 3V' z z3T yoo 52 2'33 V I T2 Qe>5"3 z.3s 3of-� 2-9 a �('v o i l ', 1 `3 s 6 ( ;o. Z5` 2es5( t 2 Official Samplina Date &Time: Samples Collected: Analysis Requested: Preservative: Hold Time (days): EPA 6010 (select metals) EPA 300.0 (Sulfates) SM 2540C ITofal Dissolved Solids) Notes: (1)- Oo not measure tlepfh to bolfom of well until after purging antl sampling to reduce resuspentling Mes IM1aI maybe resting on IM1e well bottom. (2)- SIabllliaflen cdleda basetl on IM1ree most recent consecuflve measurements. (3)-Total tlmsvtlown In well to be less Than 0.1 m (0.32 fl). Purgln9 rele to be lowered as necessary to keep tlmwtlown below 0.1 m (0.32 fl). (4) +1- 10% when tureldlly Is over 10 Me. Lab: WATER MATRIX SAMPLING FIELD DATA FORM ERM Site Name: Swift Creek Job #: 397281 Sample Type: Circle one - (Monitor Well, DPT, Surface Water, Potable WSW; other) Sample ID: W - Iq'? _ .,s - d a Date: it Sampling Personnel: Jordan Woodruff Austin Smith Weather Conditions: Sunny, Partly Cloudy, , Rain; Other Time: Well Type: Flush Surface Completion, tick up C'omp_je_ff6p Well Tag Present: X7P No Well Locked: Yes," Lock Present: Yes, N Well ID info. on Tag: e , No Well Bolted: Yes, No, 62Well Cap: a No Well Cap Condition: did, Replace, Other; Well Pad Condition: og , Cracked, Replace, Other: Well Location: TRI Asphalt, Concrete, Woods, Other; Additional Comments: Total Depth of Well (T.D.): L +, Screen Length: 5, 15, 20 feet -other: Depth to Water D.T.W : (1) . 2, Well Diameter: a a, 6, 6 Inches -other: Field Parameters measured with: 4 Aj)V f Casing Type: P�q Steel other: Purge Rate: '" 7 10 J mUmin Sampling Device: ristoW, Monsoon, Grundfos, Bailer, PDB, Other: Tubing Type: Polyethylene Measuring Point: TOC other: Pump Intake (ft below M.P.): Color: C46W Odor: Yes, No Time: min Volume Purged DTW: feet Temp Cc) pH std units SpC uS/cm DO m /L ORP mV Turb NTU Comments: Stabalizalion Crileria2 (gallons) (see note below)' +/- 3% +/- 0.1 unit +/- 3% +/- 10% +/- 10 my +/- 10%" 0 &27 21 a _ 0.19 Z& §.�z Ty rJJ �r 17 21 j 2K 2 &f. y5 ivd0 I k297 -.27 2q6�.-7 31 h sca�.2 i i(-sti4" 2�:2J i Official Sampling Date &Time:f Samples Collected: Analysis Requested: Preservative: EPA 6010 (select metals) EPA 300.0 (Sulfates) SM 2546C !Total Dissolved Solidsl Notes: (1) - eo not measure tleptM1 to bottom of well until eflar pinging and sampling Ic retluce msuspentling fines IM1a(may ba resting on the well bottom. (2) - SIabIllzatlon cnlena besetl on IM1ree most recent consaculiva measurements. (3) -Total tlrewdown In well to be less Than 0.1 m (Od2fl). Pmging rete to be Icweretl es necessary to keep tltawtlown below 0.1 m (0.32 fl). (4) +1- 10% when Iu,blGity Is even 10 NTUs. Hold Time (days): Lab: WATER MATRIX SAMPLING FIELD DATA FORM ERM Site Name: Swift Creek Sample Type: Circle one 11 onitor We Job #: 397281 DDPT, Surface Water, Potable WSW; other) Sample ID: mot Date: I k / Sampling Personnel: Jordan Woodruff <auShn _SpW Weather Conditions: Sunny, Partly Cloudy Cloud Rain; Other Time: 15 ' Well Type: Flush Surface Completion, c up Complet Well Tag Present: es No Well Locked: No Lock Present: XCsD No Well ID info. on Tag: es, No Well Bolted: Yes, No, N/A Well Cap: Yes, 00 Well Cap Condition: Good, Replace, Other; Fik Well Pad Condition: Good, Cracked, Replace, Other: .IjA Well Location: Grass, Asphalt, Concrete, c , Other; Additional Comments: Total Depth of Well (T.D.): Ito r Screen Length: 5,Q 15, 20 feet -other: Depth to Water D.T.W : 11) Well Diameter: 04, 61 a Inches -other: Field Parameters measured with: `✓5 14jpjN Casing Type: Steel other: Purge Rate: heUmin Sampling Device: ristalt , Monsoon, Grundfos, Bailer, PDB, Other: Tubing T .olyeth le Measuring Point: f O other: Pump Inta a (ft below M.P.): Color: Ct �* Odor: Yes, Time: min Volume Purged DTW: feet Temp (ec) pH std units SpC uS/cm DO (ma/I. ORP mV Turb NTU Comments: Stabalization CritedW (gallons) (see note below)3 +/- 3% +/- 0.1 unit +/- 3% +/- 10% +/- 10 my +/- 1o%4 J b 3 ti. a'h an, lip 3,S 41 1. �1 Dsiii 5 ra u 91 as s 5 3 149 133 F�) nL (0 q_Zk fin, 5 1:3 7 IL4I s 4AW1 XIO'LAr 48 p.S S ' ss s— OfficialSamolingDate&Time: / Samples Collected: Analysis Requested: Preservative: EPA 6010 (select metals) u % EPA 300.0 (Sulfates) SM 2540C ITofal Dissolved Solids) Notes; (1) - Oo not measure tleplM1 to bottom of well unlll after purging and sampling to reduce resuspentling fines That maybe resling on Iba well bollom. (2) - Slabllizellon cnleda basetl cn Il,ree moll recent consocmive measummanis. (3) -Tclal tltawdown In wall to be less IM1an o.t m (0.321i). Purging rate b be lowered as necessarylo keep tlrewdown belcw0.1 m (0.32 fl). (4)+I-10%when turbidity Is over 10 NTUs. Hold Time (days): Lab: �i'1.Gi1S WATER MATRIX SAMPLING FIELD DATA FORM ER Site Name: Swift Creek Sample Type: Circle one "(Monitor Well, DPT, 99 Official Job #: 397281 ace W � ei, Potable WSW; other) Sample ID: vi - G 5le - Date: Sampling Personnel: Jordan Woodruff Austin Smith Weather Conditions: Sunny, Partly Cloudy, Cloudy, Rain; Other Time: Well Type: Flush Surface Completion, Stick Up Completion Well Tag Present: Yes, No Well Locked: Yes, No Lock Present: Yes, No Well ID info. on Tag: Yes, No Well Bolted: Yes, No, N/A Well Cap: Yes, No Well Cap Condition: Good, Replace, Other; Well Pad Condition: Good, Cracked, Replace, Other: Well Location: Grass, Asphalt, Concrete, Woods, Other; Additional Comments: Total Depth of Well (T.D.): Screen Length: 51 10, 15, 20 feet -other: Depth to Water D.T.W : (1) Well Diameter: 21 4, 63 s Inches -other: Field Parameters measured with: Casing Type: PVC, Steel other: Purge Rate: mUnnin Sampling Device: Peristaltic, Monsoon, Grundfos, Bailer, PDB, Other: Tubing Type: Polyethylene Measuring Point: TOC other: Pump Intake (ft below M.P.): Color: Odor: Yes, No Time: min Volume Pured DTW: feet Temp CC) pH Sid units SPC uS/cm mV Turb NTU Comments: Stabalization Crileria2 (gallons) (see note below)' +/- 3% +/- 0.1unit +/- 3% IDOORP +/- 10mv +/- 10%" 1Lj�� 11 ra.L w (11 —02 - S-a0a01) 7 - 2 4 v z3 26 h✓� at VV5 za1.�t(z Sampling Date &Time: I Samples Collected: Analysis Requested: Preservative: EPA 6010 (select metals) EPA 300.0 (Sulfates) SM 2540C ITotai Dissolved Solids) Notes: (1) - Oo not measure depth to bollom of well until after purging end samplln9lo reduce resuspentling foes That maybe resting on the well bollom. (2) - Slabllizallon cdleda based on Nrea mast recent consecutive measurements. (3) - Tclal drewdown In well to be less Than 0.1 m (0.32 fl). Purging rate to ba lowered as necessary to keep dmwdown below 0.1 m (0.32 R). (d) a/-10%when to hidity Is over 10 NTUs. Hold Time (days): Lab: ERM Bottle Order/Label Sheet Site: Swift Creek ERM Project Number: 0397281 BOTTLE LABEL Water Level Metals (6010) Sulfate (300) TDS (2540C) *MW 01S-WG 202003 X X X MW-0ID-WG-202003 . r40 X X X M W-02S-WG-202003 ? 7� X X X MW-02D-WG-202003 . 2? X X X MW-03-WG-202003 f X X X MW-04-WG-202003 , h't X X X MW-05RS-WG-202003 5-.7.3 X X X MW-05RD-WG-202003 j X X X MW-06-WG-202003 7 80 X X X MW-07-WG-202003 g.'2 X X X MW-08-WG-202003 X X X SW-01-WG-202003 X X X SW-02-WG-202003 X X X SW-03-WG-202003 X X X FD-01-WG-20200pp3 ' X X �] ZMOOQJ .., ._.- -�" _�" ti ^?._-✓,s,,v JXr r��':y� r'%.�,._. v':.'.. ,. -., irsf.✓^J,s. SUM (Bottle Count): 16 16 16 Notes Please include: 1 trip blank per cooler. At least 1 CoC per cooler. 1 custody seal per cooler. Prepaid shipping labels, if possible. *Collect FD-Ol at MW-015 Key: =Normal sample = Duplicate sample = QAQC sample Extra set for breakage ERM Field Team Note: add the sample day in dd format to the end of the sample ID (i.e. MW-C DRAFT WATER QUALITY MONITORING REPORT— NOVEMBER 2020 APPENDIX C LABORATORY DATA November 2020 www.erm.com Version: 1.0 Project No.: 0397281 Client: ReUse Technology February 2021 P:\Projects\0397281 ReUse CAP Implementation Swift Cr.DW\Post Closure Monitoring\2020-11 GWS\DRAFT_Swift Creek Water Quality Monitoring Report 02-09-2021 TW CM.docx 0 aceAnalytical Report of Analysis ERM NC, Inc. 300 West Summit Avenue Suite 330 Charlotte, NC 28203 Attention: Chris Means Project Name: Swift Creek Project Number: 0397281 Lot Number:VK13018 Date Completed:11/30/2020 12/01/2020 3:53 PM Approved and released by: Project Manager I: Hannah K. Lucas PCCRFO 24r iANSI National Accreditation Board qe0 A C C R E D I T E D TESTING LABORATORY The electronic signature above is the equivalent of a handwritten signature. This report shall not be reproduced, except in its entirety, without the written approval of Pace Analytical Services, LLC. Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 Tel:803-791-9700 Fax:803-791-9111 www.pacelabs.com Page 1 of 67 PACE ANALYTICAL SERVICES, LLC SC DHEC No: 32010001 NELAC No: E87653 NC DENR No: 329 NC Field Parameters No: 5639 Case Narrative ERM NC, Inc. Lot Number: VK13018 This Report of Analysis contains the analytical result(s) for the sample(s) listed on the Sample Summary following this Case Narrative. The sample receiving date is documented in the header information associated with each sample. All results listed in this report relate only to the samples that are contained within this report. Sample receipt, sample analysis, and data review have been performed in accordance with the most current approved The NELAC Institute (TNI) standards, the Pace Analytical Services, LLC ("Pace") Laboratory Quality Manual, standard operating procedures (SOPS), and Pace policies. Any exceptions to the TNI standards, the Laboratory Quality Manual, SOPS or policies are qualified on the results page or discussed below. If you have any questions regarding this report please contact the Pace Project Manager listed on the cover page. Inorganic non-metals TSS analysis for samples -001, -005, -009, -010 and -011 was initially performed within the 7-day holding time; however, the results yielded high residual mass. The samples were re -analyzed outside of the holding time using a lower initial volume. Metals The matrix spike/matrix spike duplicate (MS/MSD) associated with sample -001 had mercury recovered outside of the acceptance limits. The laboratory control sample (LCS) was recovered within the required acceptance limits; therefore, this likely demonstrates a matrix effect. Pace Analytical Services, LLC (formerly Shealy Environmetal Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 2 of 67 PACE ANALYTICAL SERVICES, LLC Sample Summary ERM NC, Inc. Lot Number: VK13018 Sample Number Sample ID Matrix Date Sampled Date Received 001 MW-01S-WG-20201109 Aqueous 11/09/20201110 11/11/2020 002 MW-01D-WG-20201109 Aqueous 11/09/20201120 11/11/2020 003 MW-02S-WG-20201109 Aqueous 11/09/20201450 11/11/2020 004 MW-02D-WG-20201109 Aqueous 11/09/20201440 11/11/2020 005 MW-03-WG-20201110 Aqueous 11/10/2020 0940 11/11/2020 006 MW-04-WG-20201110 Aqueous 11/10/2020 0930 11/11/2020 007 MW-05RS-WG-20201109 Aqueous 11/09/2020 0930 11/11/2020 008 MW-05RD-WG-20201109 Aqueous 11/09/2020 0920 11/11/2020 009 MW-06-WG-20201109 Aqueous 11/09/20201255 11/11/2020 010 MW-07-WG-20201109 Aqueous 11/09/20201555 11/11/2020 011 MW-08-WG-20201109 Aqueous 11/09/20201545 11/11/2020 012 SW-01-WS-20201109 Aqueous 11/09/20201640 11/11/2020 013 SW-02-WS-20201109 Aqueous 11/09/20201450 11/11/2020 014 SW-03-WS-20201109 Aqueous 11/09/20201600 11/11/2020 015 FD-01-WG-20201109 Aqueous 11/09/2020 11/11/2020 (15 samples) Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 3 of 67 PACE ANALYTICAL SERVICES, LLC Detection Summary ERM NC, Inc. Lot Number: VK13018 Sample Sample ID Matrix Parameter Method Result Q Units Page 001 MW-01S-WG-20201109 Aqueous Sulfate 300.0 400 mg/L 7 001 MW-01S-WG-20201109 Aqueous TDS SM 2540C- 8400 H mg/L 7 001 MW-01S-WG-20201109 Aqueous Barium 6010D 0.26 mg/L 8 002 MW-01D-WG-20201109 Aqueous Sulfate 300.0 16 mg/L 9 002 MW-01D-WG-20201109 Aqueous TDS SM 2540C- 810 mg/L 9 002 MW-01D-WG-20201109 Aqueous Barium 6010D 0.60 mg/L 10 003 MW-02S-WG-20201109 Aqueous TDS SM 2540C- 400 mg/L 11 003 MW-02S-WG-20201109 Aqueous Barium 6010D 0.24 mg/L 12 004 MW-02D-WG-20201109 Aqueous Sulfate 300.0 1.3 mg/L 13 004 MW-02D-WG-20201109 Aqueous TDS SM 2540C- 300 mg/L 13 004 MW-02D-WG-20201109 Aqueous Barium 6010D 0.27 mg/L 14 005 MW-03-WG-20201110 Aqueous Sulfate 300.0 710 mg/L 15 005 MW-03-WG-20201110 Aqueous TDS SM 2540C- 25000 H mg/L 15 005 MW-03-WG-20201110 Aqueous Barium 6010D 0.049 mg/L 16 006 MW-04-WG-20201110 Aqueous Sulfate 300.0 29 mg/L 17 006 MW-04-WG-20201110 Aqueous TDS SM 2540C- 250 mg/L 17 006 MW-04-WG-20201110 Aqueous Barium 6010D 0.061 mg/L 18 007 MW-05RS-WG-20201109 Aqueous Sulfate 300.0 3.1 mg/L 19 007 MW-05RS-WG-20201109 Aqueous TDS SM 2540C- 290 mg/L 19 007 MW-05RS-WG-20201109 Aqueous Barium 6010D 0.10 mg/L 20 008 MW-05RD-WG-20201109 Aqueous Sulfate 300.0 7.9 mg/L 21 008 MW-05RD-WG-20201109 Aqueous TDS SM 2540C- 240 mg/L 21 008 MW-05RD-WG-20201109 Aqueous Barium 6010D 0.22 mg/L 22 009 MW-06-WG-20201109 Aqueous Sulfate 300.0 820 mg/L 23 009 MW-06-WG-20201109 Aqueous TDS SM 2540C- 7700 H mg/L 23 009 MW-06-WG-20201109 Aqueous Arsenic 6010D 0.066 mg/L 24 009 MW-06-WG-20201109 Aqueous Barium 6010D 0.078 mg/L 24 009 MW-06-WG-20201109 Aqueous Lead 6010D 0.085 mg/L 24 010 MW-07-WG-20201109 Aqueous Sulfate 300.0 640 mg/L 25 010 MW-07-WG-20201109 Aqueous TDS SM 2540C- 12000 H mg/L 25 010 MW-07-WG-20201109 Aqueous Arsenic 6010D 0.089 mg/L 26 010 MW-07-WG-20201109 Aqueous Barium 6010D 0.14 mg/L 26 010 MW-07-WG-20201109 Aqueous Lead 6010D 0.22 mg/L 26 011 MW-08-WG-20201109 Aqueous Sulfate 300.0 660 mg/L 27 011 MW-08-WG-20201109 Aqueous TDS SM 2540C- 16000 H mg/L 27 011 MW-08-WG-20201109 Aqueous Arsenic 6010D 0.078 mg/L 28 011 MW-08-WG-20201109 Aqueous Barium 6010D 0.092 mg/L 28 011 MW-08-WG-20201109 Aqueous Lead 6010D 0.23 mg/L 28 012 SW-01-WS-20201109 Aqueous Sulfate 300.0 1.8 mg/L 29 012 SW-01-WS-20201109 Aqueous TDS SM 2540C- 91 mg/L 29 012 SW-01-WS-20201109 Aqueous Barium 6010D 0.032 mg/L 30 013 SW-02-WS-20201109 Aqueous Sulfate 300.0 1.1 mg/L 31 013 SW-02-WS-20201109 Aqueous TDS SM 2540C- 91 mg/L 31 013 SW-02-WS-20201109 Aqueous Barium 6010D 0.039 mg/L 32 014 SW-03-WS-20201109 Aqueous Sulfate 300.0 2.5 mg/L 33 Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 4 of 67 Detection Summary (Continued) Lot Number: VK13018 Sample Sample ID Matrix Parameter Method Result Q Units Page 014 SW-03-WS-20201109 Aqueous TDS SM 2540C- 67 mg/L 33 015 FD-01-WG-20201109 Aqueous Sulfate 300.0 370 mg/L 35 015 FD-01-WG-20201109 Aqueous TDS SM 2540C- 6400 mg/L 35 015 FD-01-WG-20201109 Aqueous Barium 6010D 0.26 mg/L 36 (49 detections) Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 5 of 67 Inorganic non-metals Client:ERM NC, Inc. Laboratory ID:VK13018-001 Description: MW-01S-WG-20201109 Matrix: Aqueous Date Sampled:11/09/2020 1110 Date Received: 11/11/2020 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Sulfate) 300.0 5 11/16/2020 1932 AMR 73761 3 (TDS) SM 2540C-2011 1 11/23/2020 2327 MOM 74550 CAS Analytical Parameter Number Method Result Q LOQ Units Run Sulfate 300.0 400 5.0 mg/L 1 TDS SM 254OC-2011 8400 H 25 mg/L 3 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range NO = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 H = Out of holding time W = Reported on wet weight basis Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 6 of 67 Metals Client:ERM NC, Inc. Laboratory ID:VK13018-001 Description: MW-01S-WG-20201109 Matrix: Aqueous Date Sampled:11/09/2020 1110 Date Received: 11/11/2020 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 11/17/2020 0930 JA132 11/17/2020 0521 73644 1 3005A 601OD 1 11/19/2020 1234 KSH2 11/18/2020 1117 73566 Parameter CAS Analytical Number Method Result Q LOQ Units Run Arsenic 7440-38-2 6010D ND 0.015 mg/L 1 Barium 7440-39-3 6010D 0.26 0.025 mg/L 1 Cadmium 7440-43-9 6010D ND 0.0050 mg/L 1 Chromium 7440-47-3 6010D ND 0.010 mg/L 1 Lead 7439-92-1 6010D ND 0.010 mg/L 1 Mercury 7439-97-6 7470A ND 0.00020 mg/L 1 Selenium 7782-49-2 6010D ND 0.020 mg/L 1 Silver 7440-22-4 6010D ND 0.010 mg/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range NO = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 H = Out of holding time W = Reported on wet weight basis Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 7 of 67 Inorganic non-metals Client:ERM NC, Inc. Laboratory ID:VK13018-002 Description: MW-01D-WG-20201109 Matrix: Aqueous Date Sampled:11/09/2020 1120 Date Received: 11/11/2020 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Sulfate) 300.0 1 11/16/2020 2032 AMR 73761 1 (TDS) SM 2540C-2011 1 11/16/2020 2021 MOM 73686 CAS Analytical Parameter Number Method Result Q LOQ Units Run Sulfate 300.0 16 1.0 mg/L 1 TDS SM 254OC-2011 810 25 mg/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range NO = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 H = Out of holding time W = Reported on wet weight basis Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 8 of 67 Metals Client:ERM NC, Inc. Laboratory ID:VK13018-002 Description: MW-01D-WG-20201109 Matrix: Aqueous Date Sampled:11/09/2020 1120 Date Received: 11/11/2020 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 11/17/2020 0956 JA132 11/17/2020 0521 73644 1 3005A 601OD 1 11/19/2020 1238 KSH2 11/18/2020 1117 73566 Parameter CAS Analytical Number Method Result Q LOQ Units Run Arsenic 7440-38-2 6010D ND 0.015 mg/L 1 Barium 7440-39-3 6010D 0.60 0.025 mg/L 1 Cadmium 7440-43-9 6010D ND 0.0050 mg/L 1 Chromium 7440-47-3 6010D ND 0.010 mg/L 1 Lead 7439-92-1 6010D ND 0.010 mg/L 1 Mercury 7439-97-6 7470A ND 0.00020 mg/L 1 Selenium 7782-49-2 6010D ND 0.020 mg/L 1 Silver 7440-22-4 6010D ND 0.010 mg/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range NO = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 H = Out of holding time W = Reported on wet weight basis Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 9 of 67 Inorganic non-metals Client:ERM NC, Inc. Laboratory ID:VK13018-003 Description: MW-02S-WG-20201109 Matrix: Aqueous Date Sampled:11/09/2020 1450 Date Received: 11/11/2020 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Sulfate) 300.0 1 11/16/2020 2052 AMR 73761 1 (TDS) SM 2540C-2011 1 11/16/2020 2021 MOM 73686 CAS Analytical Parameter Number Method Result Q LOQ Units Run Sulfate 300.0 ND 1.0 mg/L 1 TDS SM 2540C-2011 400 25 mg/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range NO = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 H = Out of holding time W = Reported on wet weight basis Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 10 of 67 Metals Client:ERM NC, Inc. Laboratory ID:VK13018-003 Description: MW-02S-WG-20201109 Matrix: Aqueous Date Sampled:11/09/2020 1450 Date Received: 11/11/2020 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 11/17/2020 0958 JA132 11/17/2020 0521 73644 1 3005A 601OD 1 11/19/2020 1241 KSH2 11/18/2020 1117 73566 Parameter CAS Analytical Number Method Result Q LOQ Units Run Arsenic 7440-38-2 6010D ND 0.015 mg/L 1 Barium 7440-39-3 6010D 0.24 0.025 mg/L 1 Cadmium 7440-43-9 6010D ND 0.0050 mg/L 1 Chromium 7440-47-3 6010D ND 0.010 mg/L 1 Lead 7439-92-1 6010D ND 0.010 mg/L 1 Mercury 7439-97-6 7470A ND 0.00020 mg/L 1 Selenium 7782-49-2 6010D ND 0.020 mg/L 1 Silver 7440-22-4 6010D ND 0.010 mg/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range NO = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 H = Out of holding time W = Reported on wet weight basis Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 11 of 67 Inorganic non-metals Client:ERM NC, Inc. Laboratory ID:VK13018-004 Description: MW-02D-WG-20201109 Matrix: Aqueous Date Sampled:11/09/2020 1440 Date Received: 11/11/2020 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Sulfate) 300.0 1 11/16/2020 2151 AMR 73761 1 (TDS) SM 2540C-2011 1 11/16/2020 2021 MOM 73686 CAS Analytical Parameter Number Method Result Q LOQ Units Run Sulfate 300.0 1.3 1.0 mg/L 1 TDS SM 254OC-2011 300 25 mg/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range NO = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 H = Out of holding time W = Reported on wet weight basis Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 12 of 67 Metals Client:ERM NC, Inc. Laboratory ID:VK13018-004 Description: MW-02D-WG-20201109 Matrix: Aqueous Date Sampled:11/09/2020 1440 Date Received: 11/11/2020 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 11/17/2020 1001 JA132 11/17/2020 0521 73644 1 3005A 601OD 1 11/19/2020 1245 KSH2 11/18/2020 1117 73566 Parameter CAS Analytical Number Method Result Q LOQ Units Run Arsenic 7440-38-2 6010D ND 0.015 mg/L 1 Barium 7440-39-3 6010D 0.27 0.025 mg/L 1 Cadmium 7440-43-9 6010D ND 0.0050 mg/L 1 Chromium 7440-47-3 6010D ND 0.010 mg/L 1 Lead 7439-92-1 6010D ND 0.010 mg/L 1 Mercury 7439-97-6 7470A ND 0.00020 mg/L 1 Selenium 7782-49-2 6010D ND 0.020 mg/L 1 Silver 7440-22-4 6010D ND 0.010 mg/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range NO = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 H = Out of holding time W = Reported on wet weight basis Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 13 of 67 Inorganic non-metals Client:ERM NC, Inc. Laboratory ID:VK13018-005 Description: MW-03-WG-20201110 Matrix: Aqueous Date Sampled:11/10/2020 0940 Date Received: 11/11/2020 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 2 (Sulfate) 300.0 5 11/18/2020 0859 AMR 73917 2 (TDS) SM 2540C-2011 1 11/19/2020 2100 MOM 74136 CAS Analytical Parameter Number Method Result Q LOQ Units Run Sulfate 300.0 710 5.0 mg/L 2 TDS SM 254OC-2011 25000 H 25 mg/L 2 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range NO = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 H = Out of holding time W = Reported on wet weight basis Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 14 of 67 Metals Client:ERM NC, Inc. Laboratory ID:VK13018-005 Description: MW-03-WG-20201110 Matrix: Aqueous Date Sampled:11/10/2020 0940 Date Received: 11/11/2020 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 11/17/2020 1003 JA132 11/17/2020 0521 73644 1 3005A 601OD 1 11/19/2020 1249 KSH2 11/18/2020 1117 73566 Parameter CAS Analytical Number Method Result Q LOQ Units Run Arsenic 7440-38-2 6010D ND 0.015 mg/L 1 Barium 7440-39-3 6010D 0.049 0.025 mg/L 1 Cadmium 7440-43-9 6010D ND 0.0050 mg/L 1 Chromium 7440-47-3 6010D ND 0.010 mg/L 1 Lead 7439-92-1 6010D ND 0.010 mg/L 1 Mercury 7439-97-6 7470A ND 0.00020 mg/L 1 Selenium 7782-49-2 6010D ND 0.020 mg/L 1 Silver 7440-22-4 6010D ND 0.010 mg/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range NO = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 H = Out of holding time W = Reported on wet weight basis Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 15 of 67 Inorganic non-metals Client:ERM NC, Inc. Laboratory ID:VK13018-006 Description: MW-04-WG-20201110 Matrix: Aqueous Date Sampled:11/10/2020 0930 Date Received: 11/11/2020 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Sulfate) 300.0 1 11/16/2020 2231 AMR 73761 1 (TDS) SM 2540C-2011 1 11/16/2020 2021 MOM 73686 CAS Analytical Parameter Number Method Result Q LOQ Units Run Sulfate 300.0 29 1.0 mg/L 1 TDS SM 254OC-2011 250 25 mg/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range NO = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 H = Out of holding time W = Reported on wet weight basis Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 16 of 67 Metals Client:ERM NC, Inc. Laboratory ID:VK13018-006 Description: MW-04-WG-20201110 Matrix: Aqueous Date Sampled:11/10/2020 0930 Date Received: 11/11/2020 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 11/17/2020 1006 JA132 11/17/2020 0521 73644 1 3005A 601OD 1 11/19/2020 1253 KSH2 11/18/2020 1117 73566 Parameter CAS Analytical Number Method Result Q LOQ Units Run Arsenic 7440-38-2 6010D ND 0.015 mg/L 1 Barium 7440-39-3 6010D 0.061 0.025 mg/L 1 Cadmium 7440-43-9 6010D ND 0.0050 mg/L 1 Chromium 7440-47-3 6010D ND 0.010 mg/L 1 Lead 7439-92-1 6010D ND 0.010 mg/L 1 Mercury 7439-97-6 7470A ND 0.00020 mg/L 1 Selenium 7782-49-2 6010D ND 0.020 mg/L 1 Silver 7440-22-4 6010D ND 0.010 mg/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range NO = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 H = Out of holding time W = Reported on wet weight basis Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 17 of 67 Inorganic non-metals Client:ERM NC, Inc. Laboratory ID:VK13018-007 Description: MW-05RS-WG-20201109 Matrix: Aqueous Date Sampled:11/09/2020 0930 Date Received: 11/11/2020 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Sulfate) 300.0 1 11/16/2020 2251 AMR 73761 1 (TDS) SM 2540C-2011 1 11/16/2020 2021 MOM 73686 CAS Analytical Parameter Number Method Result Q LOQ Units Run Sulfate 300.0 3.1 1.0 mg/L 1 TDS SM 254OC-2011 290 25 mg/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range NO = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 H = Out of holding time W = Reported on wet weight basis Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 18 of 67 Metals Client:ERM NC, Inc. Laboratory ID:VK13018-007 Description: MW-05RS-WG-20201109 Matrix: Aqueous Date Sampled:11/09/2020 0930 Date Received: 11/11/2020 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 11/17/2020 1008 JA132 11/17/2020 0521 73644 1 3005A 601OD 1 11/19/2020 1256 KSH2 11/18/2020 1117 73566 Parameter CAS Analytical Number Method Result Q LOQ Units Run Arsenic 7440-38-2 6010D ND 0.015 mg/L 1 Barium 7440-39-3 6010D 0.10 0.025 mg/L 1 Cadmium 7440-43-9 6010D ND 0.0050 mg/L 1 Chromium 7440-47-3 6010D ND 0.010 mg/L 1 Lead 7439-92-1 6010D ND 0.010 mg/L 1 Mercury 7439-97-6 7470A ND 0.00020 mg/L 1 Selenium 7782-49-2 6010D ND 0.020 mg/L 1 Silver 7440-22-4 6010D ND 0.010 mg/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range NO = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 H = Out of holding time W = Reported on wet weight basis Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 19 of 67 Inorganic non-metals Client:ERM NC, Inc. Laboratory ID:VK13018-008 Description: MW-05RD-WG-20201109 Matrix: Aqueous Date Sampled:11/09/2020 0920 Date Received: 11/11/2020 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Sulfate) 300.0 1 11/16/2020 2311 AMR 73761 1 (TDS) SM 2540C-2011 1 11/16/2020 2021 MOM 73686 CAS Analytical Parameter Number Method Result Q LOQ Units Run Sulfate 300.0 7.9 1.0 mg/L 1 TDS SM 254OC-2011 240 25 mg/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range NO = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 H = Out of holding time W = Reported on wet weight basis Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 20 of 67 Metals Client:ERM NC, Inc. Laboratory ID:VK13018-008 Description: MW-05RD-WG-20201109 Matrix: Aqueous Date Sampled:11/09/2020 0920 Date Received: 11/11/2020 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 11/17/2020 1011 JA132 11/17/2020 0521 73644 1 3005A 601OD 1 11/19/2020 1300 KSH2 11/18/2020 1117 73566 Parameter CAS Analytical Number Method Result Q LOQ Units Run Arsenic 7440-38-2 6010D ND 0.015 mg/L 1 Barium 7440-39-3 6010D 0.22 0.025 mg/L 1 Cadmium 7440-43-9 6010D ND 0.0050 mg/L 1 Chromium 7440-47-3 6010D ND 0.010 mg/L 1 Lead 7439-92-1 6010D ND 0.010 mg/L 1 Mercury 7439-97-6 7470A ND 0.00020 mg/L 1 Selenium 7782-49-2 6010D ND 0.020 mg/L 1 Silver 7440-22-4 6010D ND 0.010 mg/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range NO = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 H = Out of holding time W = Reported on wet weight basis Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 21 of 67 Inorganic non-metals Client:ERM NC, Inc. Laboratory ID:VK13018-009 Description: MW-06-WG-20201109 Matrix: Aqueous Date Sampled:11/09/2020 1255 Date Received: 11/11/2020 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Sulfate) 300.0 5 11/16/2020 2331 AMR 73761 2 (TDS) SM 2540C-2011 1 11/19/2020 2100 MOM 74136 CAS Analytical Parameter Number Method Result Q LOQ Units Run Sulfate 300.0 820 5.0 mg/L 1 TDS SM 254OC-2011 7700 H 25 mg/L 2 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range NO = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 H = Out of holding time W = Reported on wet weight basis Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 22 of 67 Metals Client:ERM NC, Inc. Laboratory ID:VK13018-009 Description: MW-06-WG-20201109 Matrix: Aqueous Date Sampled:11/09/2020 1255 Date Received: 11/11/2020 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 11/17/2020 1013 JA132 11/17/2020 0521 73644 1 3005A 601OD 1 11/19/2020 1304 KSH2 11/18/2020 1117 73566 Parameter CAS Analytical Number Method Result Q LOQ Units Run Arsenic 7440-38-2 6010D 0.066 0.015 mg/L 1 Barium 7440-39-3 6010D 0.078 0.025 mg/L 1 Cadmium 7440-43-9 6010D ND 0.0050 mg/L 1 Chromium 7440-47-3 6010D ND 0.010 mg/L 1 Lead 7439-92-1 6010D 0.085 0.010 mg/L 1 Mercury 7439-97-6 7470A ND 0.00020 mg/L 1 Selenium 7782-49-2 6010D ND 0.020 mg/L 1 Silver 7440-22-4 6010D ND 0.010 mg/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range NO = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 H = Out of holding time W = Reported on wet weight basis Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 23 of 67 Inorganic non-metals Client:ERM NC, Inc. Laboratory ID:VK13018-010 Description: MW-07-WG-20201109 Matrix: Aqueous Date Sampled:11/09/2020 1555 Date Received: 11/11/2020 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Sulfate) 300.0 5 11/17/2020 0031 AMR 73761 2 (TDS) SM 2540C-2011 1 11/19/2020 2100 MOM 74136 CAS Analytical Parameter Number Method Result Q LOQ Units Run Sulfate 300.0 640 5.0 mg/L 1 TDS SM 254OC-2011 12000 H 25 mg/L 2 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range NO = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 H = Out of holding time W = Reported on wet weight basis Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 24 of 67 Metals Client:ERM NC, Inc. Laboratory ID:VK13018-010 Description: MW-07-WG-20201109 Matrix: Aqueous Date Sampled:11/09/2020 1555 Date Received: 11/11/2020 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 11/17/2020 1016 JA132 11/17/2020 0521 73644 1 3005A 601OD 1 11/19/2020 1308 KSH2 11/18/2020 1117 73566 Parameter CAS Analytical Number Method Result Q LOQ Units Run Arsenic 7440-38-2 6010D 0.089 0.015 mg/L 1 Barium 7440-39-3 6010D 0.14 0.025 mg/L 1 Cadmium 7440-43-9 6010D ND 0.0050 mg/L 1 Chromium 7440-47-3 6010D ND 0.010 mg/L 1 Lead 7439-92-1 6010D 0.22 0.010 mg/L 1 Mercury 7439-97-6 7470A ND 0.00020 mg/L 1 Selenium 7782-49-2 6010D ND 0.020 mg/L 1 Silver 7440-22-4 6010D ND 0.010 mg/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range NO = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 H = Out of holding time W = Reported on wet weight basis Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 25 of 67 Inorganic non-metals Client:ERM NC, Inc. Laboratory ID:VK13018-011 Description: MW-08-WG-20201109 Matrix: Aqueous Date Sampled:11/09/2020 1545 Date Received: 11/11/2020 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Sulfate) 300.0 5 11/17/2020 0051 AMR 73761 2 (TDS) SM 2540C-2011 1 11/19/2020 2100 MOM 74136 CAS Analytical Parameter Number Method Result Q LOQ Units Run Sulfate 300.0 660 5.0 mg/L 1 TDS SM 254OC-2011 16000 H 25 mg/L 2 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range NO = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 H = Out of holding time W = Reported on wet weight basis Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 26 of 67 Metals Client:ERM NC, Inc. Laboratory ID:VK13018-011 Description: MW-08-WG-20201109 Matrix: Aqueous Date Sampled:11/09/2020 1545 Date Received: 11/11/2020 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 11/17/2020 1018 JA132 11/17/2020 0521 73644 1 3005A 601OD 1 11/19/2020 1319 KSH2 11/18/2020 1117 73566 Parameter CAS Analytical Number Method Result Q LOQ Units Run Arsenic 7440-38-2 6010D 0.078 0.015 mg/L 1 Barium 7440-39-3 6010D 0.092 0.025 mg/L 1 Cadmium 7440-43-9 6010D ND 0.0050 mg/L 1 Chromium 7440-47-3 6010D ND 0.010 mg/L 1 Lead 7439-92-1 6010D 0.23 0.010 mg/L 1 Mercury 7439-97-6 7470A ND 0.00020 mg/L 1 Selenium 7782-49-2 6010D ND 0.020 mg/L 1 Silver 7440-22-4 6010D ND 0.010 mg/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range NO = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 H = Out of holding time W = Reported on wet weight basis Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 27 of 67 Inorganic non-metals Client:ERM NC, Inc. Laboratory ID:VK13018-012 Description: SW-01-WS-20201109 Matrix: Aqueous Date Sampled:11/09/2020 1640 Date Received: 11/11/2020 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Sulfate) 300.0 1 11/17/2020 0111 AMR 73761 1 (TDS) SM 2540C-2011 1 11/16/2020 2021 MOM 73686 CAS Analytical Parameter Number Method Result Q LOQ Units Run Sulfate 300.0 1.8 1.0 mg/L 1 TDS SM 254OC-2011 91 25 mg/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range NO = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 H = Out of holding time W = Reported on wet weight basis Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 28 of 67 Metals Client:ERM NC, Inc. Laboratory ID:VK13018-012 Description: SW-01-WS-20201109 Matrix: Aqueous Date Sampled:11/09/2020 1640 Date Received: 11/11/2020 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 11/17/2020 1026 JA132 11/17/2020 0521 73644 1 3005A 601OD 1 11/19/2020 1323 KSH2 11/18/2020 1117 73566 Parameter CAS Analytical Number Method Result Q LOQ Units Run Arsenic 7440-38-2 6010D ND 0.015 mg/L 1 Barium 7440-39-3 6010D 0.032 0.025 mg/L 1 Cadmium 7440-43-9 6010D ND 0.0050 mg/L 1 Chromium 7440-47-3 6010D ND 0.010 mg/L 1 Lead 7439-92-1 6010D ND 0.010 mg/L 1 Mercury 7439-97-6 7470A ND 0.00020 mg/L 1 Selenium 7782-49-2 6010D ND 0.020 mg/L 1 Silver 7440-22-4 6010D ND 0.010 mg/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range NO = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 H = Out of holding time W = Reported on wet weight basis Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 29 of 67 Inorganic non-metals Client:ERM NC, Inc. Laboratory ID:VK13018-013 Description: SW-02-WS-20201109 Matrix: Aqueous Date Sampled:11/09/2020 1450 Date Received: 11/11/2020 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Sulfate) 300.0 1 11/17/2020 0131 AMR 73761 1 (TDS) SM 2540C-2011 1 11/16/2020 2021 MOM 73686 CAS Analytical Parameter Number Method Result Q LOQ Units Run Sulfate 300.0 1.1 1.0 mg/L 1 TDS SM 254OC-2011 91 25 mg/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range NO = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 H = Out of holding time W = Reported on wet weight basis Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 30 of 67 Metals Client:ERM NC, Inc. Laboratory ID:VK13018-013 Description: SW-02-WS-20201109 Matrix: Aqueous Date Sampled:11/09/2020 1450 Date Received: 11/11/2020 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 11/17/2020 1028 JA132 11/17/2020 0521 73644 1 3005A 601OD 1 11/19/2020 1327 KSH2 11/18/2020 1117 73566 Parameter CAS Analytical Number Method Result Q LOQ Units Run Arsenic 7440-38-2 6010D ND 0.015 mg/L 1 Barium 7440-39-3 6010D 0.039 0.025 mg/L 1 Cadmium 7440-43-9 6010D ND 0.0050 mg/L 1 Chromium 7440-47-3 6010D ND 0.010 mg/L 1 Lead 7439-92-1 6010D ND 0.010 mg/L 1 Mercury 7439-97-6 7470A ND 0.00020 mg/L 1 Selenium 7782-49-2 6010D ND 0.020 mg/L 1 Silver 7440-22-4 6010D ND 0.010 mg/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range NO = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 H = Out of holding time W = Reported on wet weight basis Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 31 of 67 Inorganic non-metals Client:ERM NC, Inc. Laboratory ID:VK13018-014 Description: SW-03-WS-20201109 Matrix: Aqueous Date Sampled:11/09/2020 1600 Date Received: 11/11/2020 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Sulfate) 300.0 1 11/17/2020 0230 AMR 73761 1 (TDS) SM 2540C-2011 1 11/16/2020 2021 MOM 73686 CAS Analytical Parameter Number Method Result Q LOQ Units Run Sulfate 300.0 2.5 1.0 mg/L 1 TDS SM 254OC-2011 67 25 mg/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range NO = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 H = Out of holding time W = Reported on wet weight basis Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 32 of 67 Metals Client:ERM NC, Inc. Laboratory ID:VK13018-014 Description: SW-03-WS-20201109 Matrix: Aqueous Date Sampled:11/09/2020 1600 Date Received: 11/11/2020 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 11/17/2020 1031 JAB2 11/17/2020 0521 73644 1 3005A 601OD 1 11/19/2020 1330 KSH2 11/18/2020 1117 73566 Parameter CAS Analytical Number Method Result Q LOQ Units Run Arsenic 7440-38-2 6010D ND 0.015 mg/L 1 Barium 7440-39-3 6010D ND 0.025 mg/L 1 Cadmium 7440-43-9 6010D ND 0.0050 mg/L 1 Chromium 7440-47-3 6010D ND 0.010 mg/L 1 Lead 7439-92-1 6010D ND 0.010 mg/L 1 Mercury 7439-97-6 7470A ND 0.00020 mg/L 1 Selenium 7782-49-2 6010D ND 0.020 mg/L 1 Silver 7440-22-4 6010D ND 0.010 mg/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range NO = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 H = Out of holding time W = Reported on wet weight basis Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 33 of 67 Inorganic non-metals Client:ERM NC, Inc. Laboratory ID:VK13018-015 Description: FD-01-WG-20201109 Matrix: Aqueous Date Sampled:11/09/2020 Date Received: 11/11/2020 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 2 (Sulfate) 300.0 5 11/18/2020 0925 AMR 73917 1 (TDS) SM 2540C-2011 1 11/16/2020 2021 MOM 73686 CAS Analytical Parameter Number Method Result Q LOQ Units Run Sulfate 300.0 370 5.0 mg/L 2 TDS SM 254OC-2011 6400 25 mg/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range NO = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 H = Out of holding time W = Reported on wet weight basis Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 34 of 67 Metals Client:ERM NC, Inc. Laboratory ID:VK13018-015 Description: FD-01-WG-20201109 Matrix: Aqueous Date Sampled:11/09/2020 Date Received: 11/11/2020 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 11/17/2020 1033 JA132 11/17/2020 0521 73644 1 3005A 601OD 1 11/19/2020 1342 KSH2 11/18/2020 1117 73566 Parameter CAS Analytical Number Method Result Q LOQ Units Run Arsenic 7440-38-2 6010D ND 0.015 mg/L 1 Barium 7440-39-3 6010D 0.26 0.025 mg/L 1 Cadmium 7440-43-9 6010D ND 0.0050 mg/L 1 Chromium 7440-47-3 6010D ND 0.010 mg/L 1 Lead 7439-92-1 6010D ND 0.010 mg/L 1 Mercury 7439-97-6 7470A ND 0.00020 mg/L 1 Selenium 7782-49-2 6010D ND 0.020 mg/L 1 Silver 7440-22-4 6010D ND 0.010 mg/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range NO = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 H = Out of holding time W = Reported on wet weight basis Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 35 of 67 QC Summary Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 36 of 67 Inorganic non-metals - MB Sample ID: VQ73686-001 Matrix: Aqueous Batch:73686 Analytical Method: SM 2540C-2011 Parameter Result Q Dil LOQ Units Analysis Date TDS ND 25 mg/L 11/16/2020 2021 LOQ = Limit of Quantitation ND = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 37 of 67 Inorganic non-metals - LCS Sample ID: VQ73686-002 Matrix: Aqueous Batch:73686 Analytical Method: SM 2540C-2011 Spike Amount Result % Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date TDS 1500 1500 1 100 90-110 11/16/2020 2021 LOQ = Limit of Quantitation ND = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 38 of 67 Inorganic non-metals - Duplicate Sample ID: VK13018-014DU Matrix: Aqueous Batch:73686 Analytical Method: SM 2540C-2011 Sample Amount Result % RPD Parameter (mg/L) (mg/L) Q Dil % RPD Limit Analysis Date TDS 67 64 1 4.6 20 11/16/2020 2021 LOQ = Limit of Quantitation ND = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 39 of 67 Inorganic non-metals - Duplicate Sample ID: VK13018-015DU Matrix: Aqueous Batch:73686 Analytical Method: SM 2540C-2011 Sample Amount Result % RPD Parameter (mg/L) (mg/L) Q Dil % RPD Limit Analysis Date TDS 6400 6400 1 1.2 20 11/16/2020 2021 LOQ = Limit of Quantitation ND = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 40 of 67 Inorganic non-metals - MB Sample ID: VQ73761-001 Matrix: Aqueous Batch:73761 Analytical Method: 300.0 Parameter Result Q Dil LOQ Units Analysis Date Sulfate ND 1 1.0 mg/L 11/16/2020 1732 LOQ = Limit of Quantitation ND = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 41 of 67 Inorganic non-metals - LCS Sample ID: VQ73761-002 Matrix: Aqueous Batch:73761 Analytical Method: 300.0 Spike Amount Result % Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Sulfate 20 20 1 98 90-110 11/16/20201812 LOQ = Limit of Quantitation ND = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 42 of 67 Inorganic non-metals - MS Sample ID: VK13018-003MS Matrix: Aqueous Batch:73761 Analytical Method: 300.0 Sample Spike Amount Amount Result % Rec Parameter (mg/L) (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Sulfate ND 10 9.2 1 92 90-110 11/16/2020 2112 LOQ = Limit of Quantitation ND = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 43 of 67 Inorganic non-metals - MSD Sample ID: VK13018-003MD Matrix: Aqueous Batch:73761 Analytical Method: 300.0 Sample Spike Amount Amount Result % Rec % RPD Parameter (mg/L) (mg/L) (mg/L) Q Dil % Rec % RPD Limit Limit Analysis Date Sulfate ND 10 9.0 1 90 2.1 90-110 20 11/16/2020 2132 LOQ = Limit of Quantitation ND = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 44 of 67 Inorganic non-metals - MS Sample ID: VK13018-013MS Matrix: Aqueous Batch:73761 Analytical Method: 300.0 Sample Spike Amount Amount Result % Rec Parameter (mg/L) (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Sulfate 1.1 10 11 1 95 90-110 11/17/2020 0151 LOQ = Limit of Quantitation ND = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 45 of 67 Inorganic non-metals - MSD Sample ID: VK13018-013MD Matrix: Aqueous Batch:73761 Analytical Method: 300.0 Sample Spike Amount Amount Result % Rec % RPD Parameter (mg/L) (mg/L) (mg/L) Q Dil % Rec % RPD Limit Limit Analysis Date Sulfate 1.1 10 10 1 93 1.2 90-110 20 11/17/2020 0210 LOQ = Limit of Quantitation ND = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 46 of 67 Inorganic non-metals - MB Sample ID: VQ73917-001 Matrix: Aqueous Batch: 73917 Analytical Method: 300.0 Parameter Result Q Dil LOQ Units Analysis Date Sulfate ND 1 1.0 mg/L 11/17/2020 1728 LOQ = Limit of Quantitation ND = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 47 of 67 Inorganic non-metals - LCS Sample ID: VQ73917-002 Matrix: Aqueous Batch: 73917 Analytical Method: 300.0 Spike Amount Result % Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Sulfate 20 20 1 98 90-110 11117120201819 LOQ = Limit of Quantitation ND = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 48 of 67 Inorganic non-metals - MB Sample ID: VQ74136-001 Matrix: Aqueous Batch: 74136 Analytical Method: SM 2540C-2011 Parameter Result Q Dil LOQ Units Analysis Date TDS ND 25 mg/L 11/19/2020 2100 LOQ = Limit of Quantitation ND = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 49 of 67 Inorganic non-metals - LCS Sample ID: VQ74136-002 Matrix: Aqueous Batch: 74136 Analytical Method: SM 2540C-2011 Spike Amount Result % Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date TDS 1500 1500 1 101 90-110 11/19/2020 2100 LOQ = Limit of Quantitation ND = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 50 of 67 Inorganic non-metals - Duplicate Sample ID: VK13018-001 DU Matrix: Aqueous Batch: 74136 Analytical Method: SM 2540C-2011 Sample Amount Result % RPD Parameter (mg/L) (mg/L) Q Dil % RPD Limit Analysis Date TDS 12000 6700 + 1 56 20 11/19/2020 2100 LOQ = Limit of Quantitation ND = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 51 of 67 Inorganic non-metals - Duplicate Sample ID: VK13018-005DU Matrix: Aqueous Batch: 74136 Analytical Method: SM 2540C-2011 Sample Amount Result % RPD Parameter (mg/L) (mg/L) Q Dil % RPD Limit Analysis Date TDS 25000 27000 1 7.0 20 11/19/2020 2100 LOQ = Limit of Quantitation ND = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 52 of 67 Inorganic non-metals - MB Sample ID: VQ74550-001 Matrix: Aqueous Batch: 74550 Analytical Method: SM 2540C-2011 Parameter Result Q Dil LOQ Units Analysis Date TDS ND 25 mg/L 11/23/2020 2327 LOQ = Limit of Quantitation ND = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 53 of 67 Inorganic non-metals - LCS Sample ID: VQ74550-002 Matrix: Aqueous Batch: 74550 Analytical Method: SM 2540C-2011 Spike Amount Result % Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date TDS 1500 1500 1 100 90-110 11/23/2020 2327 LOQ = Limit of Quantitation ND = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 54 of 67 Inorganic non-metals - Duplicate Sample ID: VK13018-001 DU Matrix: Aqueous Batch: 74550 Analytical Method: SM 2540C-2011 Sample Amount Result % RPD Parameter (mg/L) (mg/L) Q Dil % RPD Limit Analysis Date TDS 8400 7600 1 10 20 11/23/2020 2327 LOQ = Limit of Quantitation ND = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 55 of 67 Metals - MB Sample ID: VQ73566-001 Matrix: Aqueous Batch: 73566 Prep Method: 3005A Analytical Method: 6010D Prep Date: 11/18/2020 1117 Parameter Result Q Dil LOQ Units Analysis Date Arsenic ND 1 0.015 mg/L 11/19/20201219 Barium ND 1 0.025 mg/L 11/19/20201219 Cadmium ND 1 0.0050 mg/L 11/19/20201219 Chromium ND 1 0.010 mg/L 11/19/20201219 Lead ND 1 0.010 mg/L 11/19/20201219 Selenium ND 1 0.020 mg/L 11/19/20201219 Silver ND 1 0.010 mg/L 11/19/20201219 LOQ = Limit of Quantitation ND = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 56 of 67 Metals - LCS Sample ID: VQ73566-002 Matrix: Aqueous Batch: 73566 Prep Method: 3005A Analytical Method: 6010D Prep Date: 11/18/2020 1117 Spike Amount Result % Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Arsenic 0.40 0.40 1 99 80-120 11/19/20201223 Barium 2.0 1.9 1 97 80-120 11/19/20201223 Cadmium 0.40 0.39 1 96 80-120 11/19/20201223 Chromium 2.0 2.1 1 107 80-120 11/19/20201223 Lead 0.40 0.39 1 97 80-120 11/19/20201223 Selenium 0.40 0.38 1 95 80-120 11/19/20201223 Silver 0.40 0.39 1 99 80-120 11/19/20201223 LOQ = Limit of Quantitation ND = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 57 of 67 Metals - MS Sample ID: VK13018-015MS Matrix: Aqueous Batch: 73566 Prep Method: 3005A Analytical Method: 6010D Prep Date: 11/18/2020 1117 Sample Spike Amount Amount Result % Rec Parameter (mg/L) (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Arsenic ND 0.40 0.45 1 112 75-125 11/19/20201346 Barium 0.26 2.0 2.2 1 96 75-125 11/19/20201346 Cadmium ND 0.40 0.43 1 106 75-125 11/19/20201346 Chromium ND 2.0 2.1 1 105 75-125 11/19/20201346 Lead ND 0.40 0.38 1 95 75-125 11/19/20201346 Selenium ND 0.40 0.41 1 102 75-125 11/19/20201346 Silver ND 0.40 0.42 1 105 75-125 11/19/20201346 LOQ = Limit of Quantitation ND = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 58 of 67 Metals - MSD Sample ID: VK13018-015MD Matrix: Aqueous Batch: 73566 Prep Method: 3005A Analytical Method: 6010D Prep Date: 11/18/2020 1117 Sample Spike Amount Amount Result % Rec % RPD Parameter (mg/L) (mg/L) (mg/L) Q Dil % Rec % RPD Limit Limit Analysis Date Arsenic ND 0.40 0.45 1 112 0.27 75-125 20 11/19/20201351 Barium 0.26 2.0 2.2 1 96 0.20 75-125 20 11/19/20201351 Cadmium ND 0.40 0.42 1 106 0.16 75-125 20 11/19/20201351 Chromium ND 2.0 2.1 1 105 0.24 75-125 20 11/19/20201351 Lead ND 0.40 0.38 1 95 0.45 75-125 20 11/19/20201351 Selenium ND 0.40 0.41 1 103 0.88 75-125 20 11/19/20201351 Silver ND 0.40 0.42 1 105 0.24 75-125 20 11/19/20201351 LOQ = Limit of Quantitation ND = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 59 of 67 Metals - MB Sample ID: VQ73644-001 Matrix: Aqueous Batch: 73644 Prep Method: Analytical Method: 7470A Prep Date: 11/17/2020 0521 Parameter Result Q Dil LOQ Units Analysis Date Mercury ND 1 0.00020 mg/L 11/17/2020 0924 LOQ = Limit of Quantitation ND = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 60 of 67 Metals - LCS Sample ID: VQ73644-002 Matrix: Aqueous Batch: 73644 Prep Method: Analytical Method: 7470A Prep Date: 11/17/2020 0521 Spike Amount Result % Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Mercury 0.0020 0.0018 1 91 80-120 11/17/2020 0927 LOQ = Limit of Quantitation ND = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 61 of 67 Metals - MS Sample ID: VK13018-001 MS Matrix: Aqueous Batch: 73644 Prep Method: Analytical Method: 7470A Prep Date: 11/17/2020 0521 Sample Spike Amount Amount Result % Rec Parameter (mg/L) (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Mercury ND 0.0020 0.0011 N 1 54 85-115 11/17/2020 0932 LOQ = Limit of Quantitation ND = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 62 of 67 Metals - MSD Sample ID: VK13018-001 MD Matrix: Aqueous Batch: 73644 Prep Method: Analytical Method: 7470A Prep Date: 11/17/2020 0521 Sample Spike Amount Amount Result % Rec % RPD Parameter (mg/L) (mg/L) (mg/L) Q Dil % Rec % RPD Limit Limit Analysis Date Mercury ND 0.0020 0.00090 N 1 45 18 85-115 20 11/17/2020 0935 LOQ = Limit of Quantitation ND = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 63 of 67 Chain of Custody and Miscellaneous Documents Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 64 of 67 PACE ANALYTICAL SERVICES, LLC L z I Cl` L M O]Q wPc vC II/I"8 iN 13� 3- i � t PL 4 ""' >-. R 13 r 4L ca3cx�n,.a � 4 � - { G .` r c A Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 65 of 67 PACE ANALYTICAL SERVICES, LLC j M z J L) Q � E�� LU LD �n �a -j�$Qd a�CnwQ 4 y` W 4Y1R W Ih� g'�i FG]Yf 3 —," I g I{ �]ay - � 4 w 01 EMO iF 4 }1'ti 6 ti Q Pti. 3 41 cIX �t a] 5 LL t L F. C 12 i7 4 o 4 4091 9 a Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 66 of 67 PACE ANALYTICAL SERVICES, LLC SatlVles MCeipt a iecialst (SF>w 1 Mwolsc-15) { aGa'Arr tM { 20 Issiaing,Suthorrty_ Pace ENV - WCOL �ewisPd=9/ e 1 of of I Pale 1 ,ample Receipt heckjist ( C]i :r� Coop r ll{ 1 , ' T.bt r : ul} Yes No �- WOM Custody .L-rjS sent Ron the c0olcr? — Yes No 2. if castm1 aauls vee resent, Wei a Chi intsct rind unbro On? P1I STdP 1D: t hlDrin+e Ship tD' _ j T t]ri nal tcmparanir upon rer tver] {- °C r` rr4 tod1 tRo'n nature upant r rcipt %Solid Snap -Cup III,NA ' jihad: []TewPm1urc B1..nk Q i •ntst 1#ortles IR C. un J l : _ Wet ] fr Packs lTt iil-m DOrres,:Lion Facto-: CthoJ ref cao[a�t; Q i gy Jce ❑ None Ej Yes []-No DNA 3. If temperature ofamy oociJcr exceeded 6,0GC, was Projaet Mom ager7,ljtirbW? PM V'W N(.H'tied l} .. phone { email ,r bCe„tts-fa'ae (rru-cle ono). as Nu NA 4. Fs iha: r omtnct via3 crrnrler's pscxing sla atfaChcd to th3e ��— es Na S. fGre }lepprr clLsto Ixroaedu�pcs (relingeiRhedr'reL)r ? e 6_ 141im sample IDs hsted an 1ho WC? Yes a No 7. 'Wet! sanyplc JD.q listed nn all 2ampte uontuttwrs? +} S. k'Jps colJrtstiiRotl latex &, tlnie hMd on the Cor? — Yes No 9. W2j collection d= & tiros Eacd an al l sample cDna i Yes No (4, Did a container label iufimn�tlan {It], date, t;me} s{�r2;with the C {JC? 'TEA Nu 11. "4V:zcte is to he perf- ed lined oral #ltc C ? Yes ]u 12' D d a]1 &3gW1es arrive- iu the Pr6par C0l3Winer9 fgr reach test andi0i itr grrnd can&tiiom (unbrok li, Iide on, etr j" i cY, LI II Was adeq=& samrils valor,, availab'.z? i �'cs ' r*u 14. Welt fill samPleS received Willi in'/, t#W hold i,lg lime or4R hours, whichetrer�0 nes first? 'es u 1 _ RFgre a Sam ]cs eor�tainer7i missit:g{cxoes5 (o3r4>lc one) saLn-)1cs Not l]sted on {.:{ ;"C El Y�e No [ 16. Nar 'QA and REF,i7s saanples, were bubblti present `prat -size" ('14'•ar 6unm ire dla,r,rl in rar] An of the V0A vLds7 es N(I NA 17_ Were atl P)liJ7lmctals+'mtnIkat Earn les yes Neu A IS- vreall oyMiar seen Ias rer ived t a P-M > 12 and 103 tide samples received at a ]li > 9? Ye, � No L J 1A 14 +�1e a I applic e _ N CYajd Wpkau G25,10.5mrs Yea 0 I�lrrLZNl • 1Vcre client nxMRr1Wrcgtre±rks ti.e rcquefiied dilutions, lMSr'Iwg5l3 debt atic}ny, ere...} cnrrertly u HEL'L' ed from the CDC Lou the OMEDet,t section in 1.IMS? qYs ND 21, Wk Oho re atunber listed on fife cortiin� Ix>,n17 t?ta +� mpae ?P7 escrv:ttian (144ttst toe oompleeetJ for any sam l (s} incorrectly pxArved rn' with headsparr—) xsungie(s - WcraluLxEved ittc0rr"--t] u stun le receiving w!&. - y presary d and are n jastC3 accoedingly P �L oi? Died, ten,; H�SO�, D3, IiC I.1hlapFl using �]t lr � �, Cimp of`j�tCSertaliorf Iftoore than Rona pneser4•ativo is needed, please note ill the comments below k'll IIPle'.Is g _ re+ nvod wits bubb�; 6 mm In diameter, arnples(s) wcte rermcd with 'I'FC > rijustied aecar ingly in sample reeci,ing with sodium titiasuifata S U wilij Shealy i as,�o} aed were CDMMC:itS : Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 67 of 67 ERM has over 160 offices across the following countries and territories worldwide Argentina The Netherlands ERM's Charlotte, NC Office Australia New Zealand ERM NC, Inc. 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