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HomeMy WebLinkAboutCCB0057_Nash_Reuse_SwiftCreek_StructuralFill_March2021GW_FID1584695_20210603ReUse Technology Water Quality Monitoring Report — March 2021 Battleboro, Nash County North Carolina May 14, 2021 Project No.: 0397281 The business of sustainability Water Quality Monitoring Report - March 2021 Swift Creek CCB Structural Fill — CCB0057 Battleboro, Nash County North Carolina Chris Means, Project Manager 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 Thomas M. Wilson, P.G. Principal -in -Charge www.erm.com Version: 1.0 Project No.: 0397281 Client: ReUse Technology May 14, 2021 WATER QUALITY MONITORING REPORT — MARCH 2O21 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..........................................................................................................9 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................................................................................................................... 10 Figure 2 Site Map and Monitor Well Locations..................................................................................... 10 Figure 3 Shallow Groundwater Potentiometric Map — March 2021...................................................... 10 Figure 4 Groundwater Analyses - Constituents Exceeding 2L Groundwater Standards — March 202110 Figure 5 Groundwater Analyses — Sulfate — Surficial Aquifer............................................................... 10 Figure 6 Hydrogeologic Profile A-A....................................................................................................... 10 Figure 7 Sulfate Concentrations over Time — Selected Monitor Wells ................................................. 10 List of Tables Table 1 Monitor Well Construction Data Summary.............................................................................. 11 Table 2 Historical Groundwater Elevation Data................................................................................... 11 Table 3 Groundwater and Surface Water Analytical Event Results .................................................... 11 Table 4 Groundwater and Surface Water Field Parameter Results .................................................... 11 www.erm.com Version: 1.0 Project No.: 0397281 Client: Reuse Technology May 14, 2021 Page i WATER QUALITY MONITORING REPORT — MARCH 2O21 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 May 14, 2021 Page 1 WATER QUALITY MONITORING REPORT — MARCH 2O21 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 May 14, 2021 Page 2 WATER QUALITY MONITORING REPORT — MARCH 2O21 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-51D, 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 May 14, 2021 Page 3 WATER QUALITY MONITORING REPORT — MARCH 2O21 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 May 14, 2021 Page 4 WATER QUALITY MONITORING REPORT — MARCH 2O21 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 March 25-26, 2021. 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 MW-2D MW-3 MW-4 MW-5RS MW-5RD MW-6 MW-7 Subtotal: 10 Subtotal: 2 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 measured for each groundwater and surface water sample by calibrated meters. Well purge logs were www.erm.com Version: 1.0 Project No.: 0397281 Client: ReUse Technology May 14, 2021 Page 5 WATER QUALITY MONITORING REPORT — MARCH 2O21 MONITORING RESULTS Battleboro, Nash County 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 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 10 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 March 25, 2021 ranged from 91.13 ft MSL at MW-7 located on the east (downgradient) side of the Site to 94.76 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 March 2021 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. During the March 2021 monitoring event, MW-8 was unable to be accessed due to a biological hazard (water moccasin) at the monitor well. Using the current groundwater elevation data, the hydraulic gradients for the Site were calculated. See summarized table below. 25-March-2021 Well Head Head Distance Hydraulic Gradient Designation Elevation Change Change (ft) (ft) (ft) (ft/ft) • •1 :1 ® 11 11 1 11 1 •• ® 11 11 1 11 • I Averaqe Hydraulic Gradient 0.0043 1 www.erm.com Version: 1.0 Project No.: 0397281 Client: ReUse Technology May 14, 2021 Page 6 WATER QUALITY MONITORING REPORT — MARCH 2O21 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 March 2021 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 3 to 9 feet per year. Seepage Velocity Range (Surficial Aquifer) = = (0.55) (0.0043) / (0.25) = 9.40E-03 ft/day = (0.55) (0.0043) / (0.10) = 2.35E-02 ft/day Range 25% 3.43 ft/yr of porosity 10% 8.58 ft/yr Seepage Velocity of3to9 The March 2021 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 March 2021 monitoring event, five 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 May 14, 2021 Page 7 WATER QUALITY MONITORING REPORT — MARCH 2O21 Battleboro, Nash County MONITORING RESULTS Current Maximum Concentrations in Groundwater — March 2021 Arsenic 0.080 0.01 Chromium 0.14 0.01 Lead 0.16 0.015 Sulfate 670 250 Total Dissolved Solids 8,000 500 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 three of the 10 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-7 (670 mg/L) located on the east-northeast (downgradient) end of the site. The sulfate concentration at MW-6 (600 mg/L), although elevated, represents the lowest concentration observed since 2014 at the north (downgradient) end of the site. At MW-3, located on the southern (locally downgradient) side of the Site, the sulfate concentration decreased to below the 2L standard for the first time since monitoring began in 2005. The March 2021 sulfate concentration of 240 mg/I at MW-3 represented a 66 percent decrease from the previous monitoring event of November 2020 (710 mg/1). MW-3 exhibits an overall decreasing trend from the peak value detected in the June 2019 sample (1,000 mg/1). 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 sulfate concentration trends are evident at MW-3, MW-6, MW-7 and MW-8, where the most elevated sulfate levels have historically occurred. Notably low values of pH were measured in the groundwater samples from MW-6 (3.8) and MW-7 (3.8). The low pH values at the two 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 two 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 & MW-2D) 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 March 2021 surface water monitoring results indicated no exceedances of any North Carolina 2B surface water standards for samples collected from Swift Creek (SW-1) and Lane Swamp (SW-2). During the March 2021 monitoring event, SW-3 (Lane Swamp) was unable to be accessed due to a biological hazard (water moccasin) in the area. The March 2021 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. www.erm.com Version: 1.0 Project No.: 0397281 Client: ReUse Technology May 14, 2021 Page 8 WATER QUALITY MONITORING REPORT — MARCH 2O21 Battleboro, Nash County SUMMARY 4.3 Laboratory Data Quality Analysis Quality assurance/quality control (QA/QC) samples collected during the March 2021 groundwater sampling activities included one blind duplicate sample collected at MW-1S. The duplicate sample of MW- 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 March 2021 water quality monitoring event evaluated groundwater and surface water quality conditions at the Site approximately 3.2 years after the corrective action completion. Since the completion of the corrective action in 2018, the 4 monitor wells (MW-3, MW-6, MW-7 and MW-8) with the historically most elevated sulfate levels continue to exhibit decreasing trends in sulfate concentrations in groundwater as shown in Figure 7. At MW-3, the sulfate concentration decreased to below the 2L standard for the first time since monitoring began in 2005. The trend of decreasing sulfate concentrations indicates that the corrective action is effectively mitigating the groundwater quality impacts at the Site. The March 2021 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 May 14, 2021 Page 9 WATER QUALITY MONITORING REPORT — MARCH 2O21 SUMMARY Battleboro, Nash County Figures Figure 1 Site Location Map Figure 2 Site Map and Monitor Well Locations Figure 3 Shallow Groundwater Potentiometric Map — March 2021 Figure 4 Groundwater Analyses - Constituents Exceeding 2L Groundwater Standards — March 2021 Figure 5 Groundwater Analyses — Sulfate — Surficial 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 May 14, 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 MW-5S MW-4 CHROMIUM 0.14 MW-5RS NONE MW-5RD NONE - LEGEND: EXISTING TOPOGRAPHIC CONTOUR (1-FT INTERVAL) e Mw-5S EXISTING MONITORING WELL (SHALLOW) e Mw-51) EXISTING MONITORING WELL (DEEP) SW-2 EXISTING SURFACE WATER AL MONITORING LOCATION - SWAMP AREAS NOTE: CONCENTRATIONS IN MG/L EXCEPT pH IN STANDARD UNITS NS - NOT SAMPLED EXISTING ACCESS DRIVE WAY r r i : F MW- _ _ ARSENIC 0.055 - LEAD 0.052 - SULFATE 600 TDS 51800 } : pH 3.8 ILI _ MW-I STRUCTURAL FILL SULFATE 430 BOUNDARY • A � I TDS 6,200 MW-3�X pH 6.1 MW-7 TDS 830 ARSENIC 0.080 MW-1 D _ LEAD 0.16 TDS 780 ; SULFATE 670 - TDS 8 000 MW-21) pH 3.8 NONEIL - - - MW-2S n •- - . SW- NONE MW-8 NS NONE AL L& AL AL Z021�� Q LANE SWAMP NOTES: 1. PROPERTY LINE OBTAINED FROM GIS DATABASE. PROPERTY SW-3 LINE WAS NOT SURVEYED BY A LICENSED SURVEYOR. pip 0001- NSSCALE IN FEET y / 60 30 15 0 6 N0. DATE APPR. REVISION N0. DATE APPR. REVISION FIGURE NO. SWIFT CREEK STRUCTURAL FILL - GROUNDWATER ANALYSES - CONSTITUENTS 4 CCB0057 ABOVE WATER QUALITY STANDARDS - BATTLEBORO, NORTH CAROLINA MARCH 2O21 LICENSE #F-1223 DRAWN BY PROJECT ENGINEER SCALE DATE CwM DWW ERM NC, INC. 1"=60' MAY 2021 DESIGN ENGINEER PROJECT MANAGER 15720BRIxHAMHILL AVENUE, SUITE 120 PROJECT NO. AutoCAD 2021 SHEET OF CHARLOTTE, NORTH CAROLINA 28277 DWW DWW (704) 541-8345 FIGURE 4 CONSTITUENTS MAP.DWG 4 WEST sa. 6)— LEGEND: RAINFALL RECHARGE AND GROUNDWATER FLOW 19 INDICATE SULFATE CONCENTRATION (MG/L) MARCH 2O21 NS - NOT SAMPLED wig 30 / \ 20 / \ me ground ■rPoce / Ns / CCB FILL \ 10 / \ / _ 00 / GROUNDWATER ELEVATION _ BASED ON 11-9-2020 MONITORING WELLS --------------- ---- EAST \ MW-1 S/1 D i MW-2S 2D (s1.oz)/(s1.o6) MW-7 MW-8 94 (91.07)/(90.87) (91.13) (NM) SW-3 10 36 ALLUVIAL A(Ii WEER —� _.., .. _..._.. _,.._ . _... _... _ „_... NM 670 _.. < ALLUVIAL A4 UIpER Y EXISTING CLAY LAYER FROM BORING LOGS (ALLUVIAL) 15 64.0) A4UtFaR 66 <1 NOTE: CROSS SECTION DEVELOPED USING INFORMATION PROVIDED TO ERM BY APPIAN CONSULTING ENGINEERS, P.A. & SHERRIL ENVIRONMENTAL, INC. HORIZONTAL SCALE:1"=150' FIGURE HYDROGEOLOGIC PROFILE A -A' ERM NC, Inc. SWIFT CREEK PROJECT ERM BATTLEBORO, NORTH CAROLINA 1301 1201 1101 1001 901 80 1 70 1 60 1 FIGURE 7 - SULFATE CONCENTRATIONS OVER TIME SWIFT CREEK CCB FILL SITE 800 700 600 S00 to 400 v ttg 300 u'' 200 100 0 o� oA o% o°' titi titi ti� ti° tih ti° ti� ti� ti° ti° ♦Sulfate • • • • • • Sulfate Concentration Trend M W-3 1200 1000 800 mo 600 v N 400 200 0 °1 ow oo yo titi yti y'' yo ti`' yo ti� tiw do yo titi O O O O O O O O O O O O O O O O O ♦Sulfate • • • • • • Sulfate Concentration Trend M W-6 1200 1000 800 J £ 600 v 3 400 200 - 0 o`' o° o� o�' oo ti° titi ti� ti� ti� tih ti� NA ti� N° ti° titi O O O O O O O O O O O O O O O O O f Seriesl • • • • • • Sulfate Concentration Trend FIGURE 7 - SULFATE CONCENTRATIONS OVER TIME SWIFT CREEK CCB FILL SITE M W-7 1000 900 800 700 600 no 500 400 300 200 100 0 Oh OO d, O� 1y 1y1 1y 1 1y1 ti� ti� ti0 ti� y4' ti0 y0 titi O O O O O O O O O O O O O O O O O ♦Sulfate • • • • • • Sulfate Concentration Trend M W-8 1200 1000 800 •••• J 600 w �" N 400 200 0 oA o� o° do titi titi ti3 ti� ti`' ti° NA N% ti° yo titi ♦Sulfate • • • • • • Sulfate Concentration Trend WATER QUALITY MONITORING REPORT — MARCH 2O21 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 May 14, 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) Status MW-1 S 99.54 96.8 2.7 3-13 15.7 Active MW-1 D 99.90 97.1 2.8 23-33 35.7 Active MW-2S 94.87 92.1 2.8 6-16 18.7 Active MW-21D 95.22 92.2 3.0 26-36 39.1 Active MW-3 102.15 99.2 3.0 7-17 20.0 Active MW-4 106.06 104.1 2.0 8-18 20.0 Active MW-5S 102.68 99.7 3.0 6-16 17.0 Abandoned MW-51D 102.67 99.8 2.9 25-35 37.9 Abandoned MW-5RS 98.80 TBD Flush Mount 8-18 18.0 Active MW-5RD 98.57 TBD Flush Mount 30-35 37.9 Active MW-6 98.41 95.0 3.4 6-16 19.4 Active MW-7 98.63 95.1 3.5 6-16 19.5 Active MW-8 95.42 92.4 3.0 6-16 19.0 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 Abandoned P-8 106.53 103.9 2.6 30-40 42.6 Abandoned P-9 103.32 100.9 2.4 20-30 32.4 Abandoned P-10 108.17 106.1 2.1 20-30 32.1 Abandoned P-11 101.88 99.2 2.7 13-23 25.7 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 Abandoned P-23East 109.75 107.1 2.7 9-19 21.8 Abandoned P-24West 103.17 101.1 2.1 3-13 15.3 Abandoned B-1 107.66 105.7 2.0 14-19 21.0 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 Gau in Date ft BTOC ftMSL ft STOC ft MSL ft BTOC ft MSL ft BTOC ft MSL ft BTOC ft MSL ft BTOC ftMSL ftBTOC ft MSL ft BTOC ft MSL ft BTOC ft MSL it BTOC it MSL ft BTOC it MSL it BTOC it MSL it BTOC it MSL ft BTOC ft MSL Well Identification Ill MW-1D Ill MW-2D MW3 MW-4 Ill hill MW-8 MW-7 MW-S MW-5RS MW5RD 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 Surftcial Surticial Surftcial Deep (Yorktown) Surftcial Suficial Suficial Deep (Yorktown) Suficial Suricial Surfcial Surficial Deep(Yorktown) N/A 12,1 -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- 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 - -- - -- - - 21-0ct-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 - -- - - - - 31Jan-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 90.94 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 17Jun-2008 9.12 90.42 9A2 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 13Jan-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 23Jun-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 90.88 9.18 90.72 4.84 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-D-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 29Jun-Jun 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 13-13-2010 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 SA2 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 26Jun-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-Deo2011 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 28Jun-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-Deo-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 25Jun-2013 8.00 91.54 %4 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 27Jun-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-Deo-2014 7.88 91.66 B.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 28Jun-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 - - 22Jan-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 - - 17Jun-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 8.65 90.89 8.80 91.10 3.73 91.14 4.27 90.95 9.98 92.17 11.56 94.50 Abandoned 2015 Abandoned 2015 7.8 90.61 % 90.43 4.89 90.53 5.7 93.10 6.03 92.54 - - 25-Mar-2020 8.52 91.02 8.82 91.08 3.8 91.07 4.35 90.87 9.61 92.54 11.3 94.76 Abandoned2015 Abandoned2015 7.61 90.80 7.5 91.13 NM NM 5.88 92.92 5.281 93.29 NE -Not Established BTOC= Below To of Casing BGL- Below ground level --= Not Measured ft MSL = feet above Mean Sea Level TOC Stickup data per Shenill Environmental, Assessment Montoring Report , Feb 10, 2015 10-7-20 Note: Historical GW elevation values corrected for MW-3 RJRTIDRAFT Swift Creek Tabfes 202103.xIedZ GW Elevatione TABLE 3 GROUNDWATER AND SURFACE WATER ANALYTICAL EVENT RESULTS SWIFT CREEK STRUCTURAL FILL - CCB0057 BATTLEBORO, NORTH CAROLINA Page 3 of 4 Sample Location / ID Date D m oo v 3 3 3 o o f v r- CD Q - � Cn n 3 - cn - m 0 Cn n o° cn Q sv NC 2L Groundwater Standard 0.01 0.7 0.002 0.01 0.015 0.001 0.02 0.02 250 500 NC 26 Surface Water Standard 0.15 NE h h 0.025 0.000012 0.005 0.00006 NE NE GROUNDWATER MONITORING WELLS MW-1 S 3/25/21 <0.015 0.23 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 430 6,200 FD-01 (MW-1 S) 3/25/21 <0.015 0.22 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 -- -- MW-1 D 3/25/21 <0.01 0.59 <0.005 <0.01 <0.010 <0.0002 <0.02 <0.01 15 780 MW-2S 3/25/21 <0.015 0.23 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 <1.0 340 MW-2D 3/25/21 3/26/21 <0.015 0.27 0.038 <0.005 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 <1.0 300 MW-3 <0.015 <0.01 <0.01 <0.0002 <0.02 <0.01 240 830 MW-4 3/26/21 <0.01 0.059 <0.005 0.14 <0.01 <0.0002 <0.02 <0.01 17 200 MW-5RS 3/25/21 <0.015 0.074 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 2.3 210 MW-5RD 3/25/21 <0.01 0.096 <0.005 <0.01 <0.01 <0.0002 <0.01 <0.01 4.7 140 MW-6 3/26/21 0.055 0.075 <0.005 <0.01 0.052 <0.0002 <0.02 <0.01 600 5,800 MW-7 3/25/21 0.080 0.092 <0.005 <0.01 0.16 <0.0002 <0.02 <0.01 670 8,000 MW-8 Unable to sample due to water mocassin at well head 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 Unable to sample due to water mocassin at well head 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 2021 03.xlsx/Table 3-Event Data 2021-03 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 a 2 3 m m ���, v m ` n 3 M M CL o c N0 ` c a o X o v a Q Cv 3 < ° 0 O m �o CD m` NC 2L Groundwater Standard 6.5 - 8.5 NE NE NE NE NE NC 2B Surface Water Standard 6.0 - 9.0 NE NE 50 NE >5.0 GROUNDWATER MONITORING WELLS MW-is 3/25/21 6.1 16.1 10,125 7.8 -80 0.41 MW-1D 3/25/21 7.1 20.9 1,229 9.9 94 1.78 MW-2S 3/25/21 6.6 16.7 615 2.4 -101 0.20 MW-2D 3/25/20 7.3 20.4 538 2.3 -84 0.61 MW-3 3/26/21 6.0 17.5 1,357 19.8 57 0.38 MW-4 3/26/21 6.4 17 345 22.4 9 0.26 MW-5RS 3/25/21 6.4 18.2 297 3.0 143 0.69 MW-5RD 3/25/21 7.4 18.6 265 4.2 136 1.77 MW-6 3/26/21 3.8 17.6 8,772 1.4 105 0.26 MW-7 3/25/21 3.8 16.0 12,734 8.5 186 0.25 MW-8 Unable to collect sample due to water mocassin near well head SURFACE WATER 19.2 127 6.50 SW-01 3/26/21 6.7 92 39 SW-02 3/25/21 7.2 20.4 104 16 65 9.94 SW-03 Unable to collect sample due to water mocassin near sample location NE - Not established NM - Not measured Bold value exceeds applicable pH standard DRAFT Swift Creek Tables 2021 03.xlsx/Table 4-Field Parameters2020-11 WATER QUALITY MONITORING REPORT— MARCH 2O21 APPENDIX A HISTORICAL GROUNDWATER AND SURFACE WATER RESULTS March 2021 www.erm.com Version: 1.0 Project No.: 0397281 Client: ReUse Technology May 14, 2021 P:\Projects\0397281 ReUse CAP Implementation Swift Cr.DW\Post Closure Monitoring\2021-03 GWS\Swift Creek Water Quality Monitoring Report 05-14-2021 DRAFT TW.docx APPENDIX Al GROUNDWATER ANALYTICAL RESULTS SUMMARY SWIFT CREEK STRUCTURAL FILL - CCB0057 BATTLEBORO, NORTH CAROLINA Page 1 of 9 -A Q o v - (o mCD -i co)o 0 CD D CA a O CD Cn (D (D o c c z 91 0- a O N Sample P N E �� c r CD Cn < wm m0 0< �Q 2m <o Location / ID Date Z. c D c' S c' v S CD a c D < ,° m m fl- _ c m 3 C a o 5 ? (c (a < a 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 <0.0002 <0.01 <0.01 490 MW-is Dec-05 0.02 0.17 <0.001 <0.01 0.042 <0.0002 <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 <0.010 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 <0.01 160 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 Mar-21 <0.015 0.23 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 430 6,200 6.1 16.1 10,125 8 -80 0.41 Duplicate (FD-01) Mar-21 <0.015 0.22 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 430 6,100 Jul-04 <0.01 0.54 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 13 MW-1D 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 Mar-21 <0.01 0.59 <0.005 <0.01 <0.010 <0.0002 <0.02 <0.01 15 780 7.1 20.9 1,229 10 94 1.78 DRAFT Swift Creek Tables 2021 03.xlsx/Tab/e A1-Historic Groundwater APPENDIX Al GROUNDWATER ANALYTICAL RESULTS SUMMARY SWIFT CREEK STRUCTURAL FILL - CCB0057 BATTLEBORO, NORTH CAROLINA Page 2 of 9 o a O CD c N z n O 0) �.CD;00 0 Sample D ao a 3 o 3 CD U) ° CCD) m w oc � � Zc ii �a pCD y 0 r 2 co a o a o < Location / ID Date 3 91 S o_ 3 m U) = v 3 < 3 v 3 0 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 Mar-21 <0.015 0.23 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 <1 340 6.6 16.7 615 2 -101 0.20 MW-21) 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 Mar-21 <0.015 0.27 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 <1 300 7.3 20.4 538 2 -84 0.61 DRAFT Swift Creek Tables 2021 03.xlsx/Table A1-Historic Groundwater APPENDIX Al GROUNDWATER ANALYTICAL RESULTS SUMMARY SWIFT CREEK STRUCTURAL FILL - CCB0057 BATTLEBORO, NORTH CAROLINA Page 3 of 9 -4 Q o v - � p co) � 0 D CA a O CD Cn (D (D o c z c S11 O- p_ C' N Sample P N E �� c r CD Cn < wm m0 0< �Q 2m <o Location / ID Date Z. c D c' S c' v S CD a c s= D < ,° m m fl- _ c m 3 C a p 5 ? co co < a 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 <0.01d <0.1d <0.1d <0.0002 <0.1d <0.1d 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 <0.015 0.049 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 710 25,000 5.2 18.9 2,921 6.3 66 0.20 Duplicate (FD-01) Nov-20 <0.015 0.26 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 370 6,400 Mar-21 <0.015 0.038 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 240 830 6.0 17.5 1,357 19.8 57 0.38 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 DRAFT Swift Creek Tables 2021 03.xlsx/Tab/e A1-Historic Groundwater APPENDIX Al GROUNDWATER ANALYTICAL RESULTS SUMMARY SWIFT CREEK STRUCTURAL FILL - CCB0057 BATTLEBORO, NORTH CAROLINA Page 4 of 9 o a O CD c N z n O 0) �.CD;0O 0 Sample D ao a 3 o 3 CD U) ° CCD) m w oc Zc ii �a OCD y 0 r 2 (D a o a o < Location / ID Date 3 91 S o- 3 m U) = v 3 < 3 v 3 0 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-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 <i 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 Mar-21 <0.01 0.059 <0.005 0.14 <0.01 <0.0002 <0.02 <0.01 17 200 6.4 16.9 345 22 9 0.26 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 Mar-21 <0.015 0.07 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 2.3 210 6.4 18.2 297 3 143 0.69 DRAFT Swift Creek Tables 2021 03.xlsx/Table A1-Historic Groundwater APPENDIX Al GROUNDWATER ANALYTICAL RESULTS SUMMARY SWIFT CREEK STRUCTURAL FILL - CCB0057 BATTLEBORO, NORTH CAROLINA Page 5 of 9 -A Q o v(D0 - mCD -i co)o CD D CA a O CD Cn (D (D o c c z S11 O_ p_ C' N Sample p N E �� o r CD Cn < wm m0 0< �Q 2m <o Location / ID Date Z. c D c' S c' v S CD a c s= D < ,° m m fl- _ c m 3 C a p 5 ? co co < a NC 2L Ground Water Standard (mg/1) 0.01 0.7 0.002 1 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 0.17 <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 Mar-21 <0.01 0.096 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 4.7 140 7.4 18.6 265 4 136 1.77 Dec-05 <0.01 0 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 <0.01 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 <0.10 0.717 <0.01 <0.10 <0.10 0.00095 <0.10 <0.10 460 Dec-11 <0.01 0.148 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 260 Jun-12 <0.05 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 <0.01 0.152 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 270 Apr-12 <0.05d 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 Mar-21 0.055 0.075 <0.005 <0.01 0.052 <0.0002 <0.02 <0.01 600 5,800 3.8 17.6 8,772 1 105 0.26 DRAFT Swift Creek Tables 2021 03.xlsx/Tab/e A1-Historic Groundwater APPENDIX Al GROUNDWATER ANALYTICAL RESULTS SUMMARY SWIFT CREEK STRUCTURAL FILL - CCB0057 BATTLEBORO, NORTH CAROLINA Page 6 of 9 Sample P Location / ID Date D N Z. CA c D a E c' S O �� c c' v S r CD a c CD CD D Cn < ,° Cn m m -4 o v - < fl- _ Q (D � p (D (D wm c m co) o c m0 0< 3 z c �Q C a � 0 S11 0_ a 2m o 5 ? O N <o (c (a < a 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 0.038 <0.10 <0.001 <0.01 0.093 <0.0002 <0.01 <0.01 379 M W-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 <0.0002 <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 <0.100d 0.158 <0.01 <0.10 0.397 <0.0002 <0.10 <0.10 700 Jun-13 <0.100d 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 m 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 Mar-21 0.080 0.092 <0.005 <0.01 1 0.160 <0.0002 <0.02 <0.01 1 670 8,000 3.8 16.0 12,734 8 186 0.25 DRAFT Swift Creek Tables 2021 03.xlsx/Tab/e A1-Historic Groundwater APPENDIX Al GROUNDWATER ANALYTICAL RESULTS SUMMARY SWIFT CREEK STRUCTURAL FILL - CCB0057 BATTLEBORO, NORTH CAROLINA Page 7 of 9 Sample P Location / ID Date D N Z. CA m c S a E c' S O �� c c' v S r m a c � CID s= rn < ,° Cn m m -A o v - CID< fl- _ Q m i ry (D wm c m co) o c m0 0< 3 z c �Q C a 0 CID 91 0_ p_ 2m p 5 ? O N <o co co < a 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 <0.100 <0.001 <0.01 0.024 <0.0002 <0.01 <0.01 400 Nov-07 0.03 <0.100 <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 0.286j <0.016 <0.050 0.371t 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 1 0.321 <0.01 <0.100 < <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 Mar-21 Monitor well unable to be sampled due to biological All concentrations in milligrams per liter (mg/L) unless otherwise noted NE - Not established Bold with gray background indicates exceedance of NC 2L Groundwater Standard -- - Not sampled DRAFT Swift Creek Tables 2021 03.xlsx/Tab/e A1-Historic Groundwater APPENDIX A2 SURFACE WATER ANALYTICAL RESULTS SUMMARY SWIFT CREEK STRUCTURAL FILL - CCB0057 BATTLEBORO, NORTH CAROLINA 0 o _ d 9- 0 - z m ~ `�" 3 ^ 30 O �ob O - 1° > w d 3 to _ ti n Oa m � O Sample _ 3 3 _ u✓ - _0 a e y 3 3 3 r Location / ID Date - 3 3 °�-' 3 ,2 3 = 3.7 �,7 \ NC 2B Surface Water Standard -Class C (ug/I)T0.15 NE 0.002° 0.05 0.025 0.000012 0.005 0.00006 NE NE 6.0-9.0 NE NE 50 NE >5.0 SW-01 04/03/03 <0.01 <0.10 <0.001 <0.01 <0.005 <0.0002 <0.01 <0.01 12 06/22/04 <0.01 <0.10 <0.001 <0.01 <0.of <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 NM -2.5 4.2 01/21/19 <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 0.058 <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 0.032 <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 03/26/21 <0.015 0.031 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 2.0 66 6.68 19.20 92 39.0 126.5 6.5 SW-02 04/03/03 <0.01 <0.10 <0.001 <0.01 <0.005 <0.0002 <0.01 <0.01 12 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 <0.01 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 <0.01 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 03/25/21 <0.015 0.026 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 2.8 66 7.16 20.40 65 16.2 65.1 9.9 Page 8 of 9 DRAFT Swift Creek Tables 2021 03.x1sx?ab/e A2-Historic Surface Water APPENDIX A2 SURFACE WATER ANALYTICAL RESULTS SUMMARY SWIFT CREEK STRUCTURAL FILL - CCB0057 BATTLEBORO, NORTH CAROLINA Sample Location / ID Date > - w _ 3 d 3 3 z 3 3 °�-' 3 ,2 to _ _ 3 rn ti - o _ m n _0 ~ `�" 3 Oa a ^ 30 e y 3 0 d 9- O �ob m � 3 0 - O - 1° O 3 r \ NC 2B Surface Water Standard -Class C (ug/I)T0.15 NE 0.002° 0.05 0.025 0.000012 0.005 0.00006 NE NE 6.0-9.0 NE NE 50 NE >5.0 SW-03 05/04/07 <0.01 <0.10 <0.001 -0.01 <0.01 <0.0002 <0.01 <0.01 2.4 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 <0.01 <0 002 <0.02 <0.01 <1 76 NM NM NM NM NM NM <0.015 0.03 0 <0.000 <0.0<0.05 2 <0.01 6.3 257 14.5 138 13.101/21/19 <0.05 1 0.025 <00006/17/19 <001 <0.01 <0.0002 <0.02 <0.01 <1 99 26.4 235.5 19.7 48.4 5.06 03/09/20 <0.01 <0005 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 <0.01 <0.03 0.025 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 2.51 67 6.8 18.3 325.3 11.4 63.4 3.78 03/25/21 Unable to collect sample due to biological hazard near sampling location All concentrations in micrograms per liter (ug/L) unless otherwise noted Bold indicates exceedance of NC 2B Water Quality Standard NE - Not established h = hardness dependent dissolved metal standard --- Not sampled NM - Not measured Page 9 of 9 DRAFT Swift Creek Tables 2021 03.x1sx?ab/e A2-Historic Surface Water WATER QUALITY MONITORING REPORT — MARCH 2O21 APPENDIX B FIELD SHEETS March 2021 www.erm.com Version: 1.0 Project No.: 0397281 Client: ReUse Technology May 14, 2021 P:\Projects\0397281 ReUse CAP Implementation Swift Cr.DW\Post Closure Monitoring\2021-03 GWS\Swift Creek Water Quality Monitoring Report 05-14-2021 DRAFT TW.docx Water Level Measurements - SWIFT CREEK PROJECT 3/25/2021 Monitor Well Date DTW Total Depth TOC Comments MW-is 3/25/2021 `. yi 15.7 MW-113 3/25/2021 5Z 35.7 MW-2S 3/25/2021 0z 18.7 MW-2D 3/25/2021 it ih 39.1 MW-3 3/25/2021, 10 20.0 MW-4 3/25/2021 20.0 MW-5RS 3/25/2021 18.0 MW-5RD 3/25/2021 2 37.9 MW-6 3/25/2021 t 19.4 MW-7 3/25/2021 K 19.5 M W-8 3/25/2021 19.0 WATER MATRIX SAMPLING FIELD DATA FORM P -Site Name: Swift Creak Sample Type: Circle one - Monitor We , DPT, Surface Water, Potable WSW; other) Job #: 0397281 Sample ID: Date: 3 'Z S Sampling Personnel: Tara Earl , Jordan Woodruff Weather Conditions: Sunny, Partly Cloudy, loud Rain; Other Time: 7_'. \ r Well Type: Flush Surface Completion, tick Up Completion � Well Tag Present: e ; No Well Locked: g es 9No Lock PiIasedia No Well ID info. on Tag: CYR, No Well Bolted: Yes, Nd Well Cap: Yes, CNol WeII Cap Condition: Good Replace, Other; Well Pad Condition: Good 'Cracked, Replace, Other: WeII Location: Grass, Asph t, Concrete, Woods, Other; Additional Comments: r � � I C :>. Total Depth of Well (T.D.): -4- Screen Length: 5, 1fi 15, 20 feet -other: Depth to Water D.T.W : (11 o Well Diameter: 2, 4, e, 8 Inches -other: Field Parameters measured with: YSI Pro/HACH 2100 Casing Type: VC,) Steel other: Purge Rate: •'vjOo —tjr mVmm Sampling Device: enstal6 , Monsoon, Grundfos, Bailer, Other: Tubing Type: yl olyethene, eeon, Other: Measuring Point: TO other: Pump Intake ( below' .R): Color: CO e :'S Odor: Yes, No Time: min Volume Purged DTW: feet Temp ec pH std units SPC uS/cm DO m /L ORD mV Turb NTU Comments: Stabalizatlon Criteria 2 (mL) (see note below)' +/- 3% +/- 0.1unit +/- 3 +/- 10% +/- 10mv +/- to , �r>>5Z .4, g Z,27 (3 (oo kolo r' . z1 ckH 3livot -�� C lnlcl 1 2-3 50 8 (P0 to Ito -5�rC) Z'. 33 15 C c %1 .� CJ Z. Official Sampling Date &Time: t)�251J-£)Zl Cc 12;A��r� Samples Collected: Analysis Requested: Preservative: Hold Time (days): ;s \ HCL 14 1,4 Dioxane U- 14 SW8015(! s) HCL Lab: SGS SGS Notes: H) - Do not measure depth to bottom of well un01 after purging and sampling to reduce resuspending fines IM1et may be testing on IM1e well hogom. 11nch WeII sana amran interim based on three most consecutive eonaeena measurements. 2inch Volume = Ft X 0.041 Weli VolumesFtxe.163 ,if -Total drewdown In well to" less than 0.1 in (oat n). Purging rate to be lowered as necessary to keepdrawdown below 0.1 in (0.32 it). 41nch WeII Volume = Fl X 0.657 (A)+r-10%Men turbidity is over 10 NTus, 3.785 L =1 Gallon WATER MATRIX SAMPLING FIELD DATA FORM E� Site Name: Swift Creak 1 Sample Type: Circle one - (Monitor Well, DPT, Surtace Water, Potable WSW; other) Job #: 0397281 SamplelD: t+il- ( � — �.�,7-f��Zh Date: '3 Z h Z. f Sampling Personnel: Tara Early, J an Wo 4,tif6 Weather Conditions: Sunny, n dy, Cloudy, Rain; Other Time: (Z � t7 Well T e: Flush Surface Completion, ck U Compietiod Well Tag Present: s, No Well Locked: Yes, Lock Present: _ No Well ID info. on Tag: No Well Bolted: Yes, � Well Cap: e , No Weli Cap Condition: oo , Replace, Other; �°"""' E�i � "" t-'�'�' Well Pad Condition: o d, Cracked, Replace, Other: Well Location: s. , Asphalt, Concrete, Woods, Other; Additional Comments: Total Depth of Well (T.D.): Screen Length: 5, rfr 15, zo feet -other: De th to Water D.T.W : t11 �'. �$ 4 Well Diameter: 4, s, a Inches -other: Field Parameters measured with: YSI Pro/HACH 2100 Casing Type: steel other: Purge Rate: %'f 0 � mL/min Sampling Device: ris ie, Monsoon, Grundfos, Bailer, Other: Tubing T pe: I eth le Tenon, other: Measuring Point: TOC other: Pump Intake (ft below M.P.): a�j" Color: �- (.�>.p 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 Crileriaz (mL) (see note below)' +/- 3% +/- 0.l unit +/- 3% +/- 10% +/. 10 mV +/. 10%" 2r1 i' y� { �� tgZfS �. J Iti,e �.t, �G�r. / Z St a"� C i ��..'� I -.'. - � � TI -fit. Fs . n V (Z �I- � ( .��1.. � I T , 4 ( � 2�-j-'w Ste' � Z7'-2 (,5•`.`� l0. �;� it 7.�r Official Samnlina Date &Time: Ill 9 �� f �fi, F z �� Samples Collected: Analysis Requested: Preservative: Hold Time fdays): Lab: VOCs HCL 14 SGS 1,4 Dioxane HCL 14 SGS SW8015(Alcoholslglycols) HCL 14 SGS Notes; U)-o° nm m°a:uro a°nm m eonom orwen u�m anor wrama ana sr.monna m r°a�=a r=:u:p=name nn=:m°r mav� r=:n� °n u° wen a°n°m. 1 inch Well Volume = Ft x 0.041 -sraar au°n �m°aa Hosea °n mm° mar re=em=°nse=uuve mee=�ramem=. 21nch Well Volume = Ft x 0.163 ,7-r°u,iamxnovm in w°m°namssmao a.r mfosz n>. surarr,nr°rams°mw°rm es na==uary r°x°°r,amwa°wn n°imvo.l m(oaz n). flinch Well Volume=Rx0.657 -(a) «t-io:c wn=r, mrbw�ry m ov°r io Hrus. 3.785 L = 1 Gallon �� WATER MATRIX SAMPLING FIELD DATA FORM ERM ..,Site Name: Swift Creak Sample Type: Circle one - (Monitor Well, DPT, Surface Water, Potable WSW; other) Job #: 0397281 Sample ID: IvLW.2,Cr 2.�J i332y. Date: Sampling Personnel: Tara Early, ag aodru Weather Conditions: Sunny, rtttk ou y, Cloudy, Rain; Other Time: Well Type: Flush Surface Completion, Pfick Up Connpletio Well Tag Present: e , No Well Locked: r , No Lock Pros . es, No Well ID info. on Tag: a&e , No Well Bolted: Yes, Well Cap: Yes, No Well Cap Condition: o , Replace, Other; Well Pad Condition: o , Cracked, Replace, Other: Well Location: ms Asphalt, Concrete, Woods, Other; Additional Comments: Total Depth of Well (T.D.): 7 Screen Length: 61 ^Isg 152 20 G - j( feet -other: Depth to Water D.T.W : (1) ' 3 Well Diameter: 4, 61 8 Inches -other: Field Parameters measured with: YSI Pro/HACH 2100 Casing Type: PV , Steel other: Purge Rate: :""f oo mumin Sampling Device: Perist 8' , Monsoon, Grundros, Bailer, Other: Tubing Type: gCy:e!hyj2ne, Teflon, Other: Measuring Point: TOC other: Pump Intake (ft below M.P.): (I'( F'{' Color: :r I a Odor: Yes, o Time: min Volume Pur ed DTW: feet Temp °C) PH std units SPC uS/cm DO m /L ORP mV Turb NTU Comments: Sta nalization Crileria2 (mL) (see note below)' +/- 3% +/- 0.1 unit +/- 3% +I- 10% +/- 10 mV +/- 10%" v of 7C.� 6 .3S. 5rzt t 3Lj JUE. ' G q'7 2Y 2` 534y G� ai ,2cx too, r 5C o 7 � �� �t h` �.� � _ "��. 23. f Official Sampling Date &Time: Samples Collected: Analysis Requested: Preservative: Hold Time (days): Lab: VOCs HCL 14 SGS 1,4 Dioxane HCL 14 SGS SW8015(Alcoholslglycols) HCL 14 SGS Notes: (1)-Don°I measure tlepih to boHam oiwell until after purging and sampling to reduco resusperdin9 flnas that maybe resOng on No well boilam. inch Well VOlnme=FtX 0.041 s-staalnanon arHeda baaaa on mree most meam coneeoawe moaanremanta. 2inch Well Volume = Ft x 0.163 j-Total dmwdown In well to be less than 0.1 m (0.32Ib. Purging rate to be lowered as necessary to keep drawdown below 0.1 an (0.32 to. 4 nch WeII Volume = Ft X 0.657 (4)+1. 10%when brbWHy 15 over 10 anus. 3.785 L = 1 Gallon WATER MATRIX SAMPLING _ FIELD DATA FORM ER ,Site Name: Swift Creak Sample Type: Circle one - Monitor WeIJUPT, Surface Water, Potable WSW; other) Jab #: 0397281 Sample ID: O O / Date: 22 j '2 Sampling Personnel:)Tara Ea , Jordan Woodruff Weather Conditions: Sunny, Partly Cloudy, cloudy Rain; Other Time: Well Type: Flush Surface Completion, Stick Up Completion Well Tag Present: Ye , No Well Locked: Yes, No Lock Present: Yes No Well ID info. on Tag. We No Well Bolted: es, No Well Cap: yes, No Well Cap Condition: coo Replac Other; Well Pad Condition: Good, Cracked, Replace, Other: Well Location Grass, Asphalt, Concrete, oods, 'Other; Additional Comments: Total Depth of Well (T.D.): Screen Length: 51 0, 15, 20 feet -other: Depth to Water D.T.W : j11q . L Well Diameter: 2, 4, 6, 8 Inches -other: Field Parameters measured with: YSI Pro/HACH 2100 Casing Type: PVC, Steel other: Purge Rate: "/ t f _ S'in mumin Sampling Device: Pens tic, Monsoon, Grundfos, Bailer, Other: Tubing Type: olyet—Phylenel Tenon, Other: Measuring Point: TOC other: Pump Intake (ft below M.P.): Color: 1(� S� Odor: Yes, No Time: min Volume Purged DTW: feet Temp °C) pH std units SPC uS/cm DO m /L ORP mV Turb NTU Comments: Stabalizalion CriterW (mL) (see note below)' +/- 3% +/- 0.1 unit +/- 3% +/- 10% +/- 10 mV +/- 10%4 15I� s '4� T-5-1 it i,\00 7 1s /5 n Lq q3 i.112 , 0 5•i SVI 111 $-- v 00 r ri, lU S3`Il'Irl c LA It Z.D LS• o z h� 7 , r�•� �, bs 50 r. �'L 11, 6A to• 1 • ) 1e z 5. °1, 6 tn� �Nl 3 7 , 1 �t�.k � flZ Official Sampling Date &Time: 03 1 L 5 rzOZ Samples Collected: Analysis Requested: Preservative: Hold Time (days): Lab: VOCs HCL 14 SGS 1,4 Dioxane HCL 14 SGS SW8018(Alcohols/glycols) HCL 14 SGS Notes: ry)-oo not m°asmo aeoth io bovom orwan unm an°, wng[g aka:amnnng m reau°e resasnanalo0 nnas mai maybe resting on m°wen bonam. 1 inch Well Volume = Ft x o.041 s�abumanon <,neaa basoa on m,°° mosv°°om °onseouwe m°asuremem°. 2inch Well Volume = Ft x 0.163 ; )-Tout a,a wown In well to be less than as an (0.34 n1. Purg[g rate to be lowered as necessary to keen arawanwn below 0.1 m r0.32 Id. 41nch Well Volume = Ft x 0.657 (4)+r- ions when [noddy is over 10 onus. 3.785 L = 1 Gallon WATER MATRIX SAMPLING FIELD DATA FORM S1te Name: Swift Creak I' Sample Type: Circle one - critter W If, DPT, Surface Water, Potable WSW; other) Job #: 0397281 Sample ID: MV/ 02(032Co Date: l 6 21 Sampling Personnel: Tara Early, J rdarr oodru Weather Conditions: Sunny, Partly Cloudy, tloudy, Rain; Other Time: o 1 h Well Type: Flush Surface Completion, tick Up Comp tion Well Tag Present: Yes, Well Locked: -ye , No Lock Present: s.s , No Well ID info. on Tag: Yes, ip Well Bolted: Yes, Well Cap: �'e , No Well Cap Condition: oe , 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: 51 22 15, 20 '7- feet -other: Depth to Water D.T.W : nl . % Well Diameter: a, 65 a Inches -other: Field Parameters measured with: YS Pro/HACH 2100 Casing Type: v steel other: Purge Rate: `f- 1 `� =1 mumin Sampling Device: eristal c, Monsoon, Grundfos, Bailer, Other: Tubing Type: oyethyle e, Teflon, Other: Measuring Point: TOC other: Pump Intake (ft be ow M.P.): `t f (" Color: * 14es Odor: Yes, Time: min Volume Purged DTW: feet Temp 00) std pH units SPC uS/cm DO m /L ORP mV Turb NTU Comments: Stabalization CriteriW (ML) (see note below)' +/- 3%7 +/- 0.1 unit +/- 3% +/- 10% +/- 10 mV +/- to%, • 1030 ( l;b �t:irL fP. 59 F7q-- t2 -�^� f�'t� �l fit. r"3 /� ✓,:'Jl,n. 51a'..t8 jq=1a -t so 10, �1 7, 6 0 Z 1277 f,4(3s 63. CW4 i vv .5 7 5v 0 P5 L .00 0, U �`i ,g 13rs f ob o 5,o 7, 9" n�) 13T7 3% 4 7.3 P Ir Official Sampling Date &Time: Samples Collected: Analysis Requested: Preservative: Hold Time (days): Lab: VOcs HCL 14 SGS 1,4 Dioxane HCL 14 SGS SW8015(Alcohols/glycols) HCL 14 SGS Notes: ry)-oo mr messura asom ro nogo,nonen unni anar purekre aria aampnng m reaaea reeuapenamg roes mac may ne reeuna on me wen eonom. 11nch Well Volume = Ft x 0.041 +-sraanrauon nmeaa naaea on m,ee mo:r repam uon:aauwa maaau,emanm. 2inch Well Volume=Ftx 0.163 Tara I araa a rm In well to be less man 0.1 or t0.32 is. Purging rate to be moverea as necessary to keep arawaown below0.1 on (0.32 n). 41nch Well Volume = Ft x 0.657 lel.r- t0� wnen w,waM ie over 10 rrrua. 3.785 L = 1 Gallon N�� WATER MATRIX SAMPLING FIELD DATA FORM INW RM Site Name: Swift Creak Sample Type: Circle one-)vlonitor Well DPT, Surface Water, Potable WSW; other) Job #: 0397281 Sample ID: 1�1� — - ri2-) ,1U Date: v L pt, LL Sampling Personnel: 'Tara Earl Jordan Woodruff Weather Conditions: Sunny, Partly Cloudy,(Cloudy Rain; Other Time: (> I O Well Type: Flush Surface Completion, Stick Up Completion Well Tag Present: Ye No Well Locked: Yes, o Lock Present: �Y s No Well ID info. on Tag: - es No Well Bolted: Yes, o Well Cap: Yes, No Well Cap Condition: Good, Replace, Other; Well Pad Condition: Cracked, Replace, Other: Well Location:PGrassA Asphalt, Concrete, Woods, Other; cold, Additional Comments: "^ :10:cv rJ n r o I r c. ) CL. Total Depth of Well (T.D.): r p - Screen Length: 51 10,-1 15, 20 feet -other: Depth to Water D.T.W : B1 11 l>"i"- Well Diameter: 2 4, 6, a Inches -other: Field Parameters measured with: YSI Pro/HACH 2100 Casing Type: wid, Steel other: Purge Rate: r mUmin Sampling Device: Peristalli Monsoon, Grundfos, Bailer, Other: Tubing Type: ll laolyer![TIA Tenon, Other: Measuring Point: OC other: Pump Intake (ft below M.P.): I `(. f 1' Color: - , 6 Odor: Yes, No Time: min Volume Purged DTW: feet Temp (C) pH aid units SPC uS/cm DO m /L ORP mV Turb NTU Comments: Stabalization Crileda2 (al (see note below)' +/- 3% +/- 0.1unit +/- 3% +/- 10% +/- 10mv +/- to%4 � 2)0 17• �13q 3?_,`1 0,jb z, 6 35 il,ti0 17.1. r 013(4 S`tt boa lo ib• 5 . So oU its L •3 ', 5, U, L, 2z. Official Sampling Date &Time: Samples Collected: Analysis Requested: Preservative: Hold Time (days): Lab: vocs HCL 14 SGS 1,4 Dloxane HCL 14 SGS SW8015(Alcohols/glycols) HCL 14 SGS Notes: U)-oo nm measure aopu m bonom onren nnoi aner pn�etna ana sampime to reanoe resnscename ones mat may be resane on ue wan bmmm. 11nch Well Volume = Ft x 0.041 3-aaun:anon °mnaa bnaea on urea mo:� reeemoonseanwe measmamenu. 2inch Well Volume = Fl x 0.163 ) - Total donna own in well be less than 0.1 m (0.]2 e). Probing rate to be lowered as neoassarvu keepdowedmvn below at in (0a2 n). 41nch Well Volume = Ft x 0.657 (4)+(-to%when nabob" over to NTus. 3.786 L = 1 Gallon WATER MATRIX SAMPLING FIELD DATA FORM ERM Site Name: Swift Creak Sample Type: Circle one - (Monitor Well, DPT, Surface Water, Potable WSW; other) Job #: 0397281 Sample ID: AA V/' 5-ft t 201103,1 Date:. Sampling Personnel: Tara Early, oo'�ruff Weather Conditions: Sunny, P ly Clg dy, Cloudy, Rain; Other Time: ,'7�i Well Type: FImOb Surjac Com le' n, Stick Up Completion Well Tag Present: , No Well Locked: Yes, Lock Present: rie , No Well ID info. on Tag: ' e), No Well Bolted: e , No Well Cap: es No Well Cap Condition: G,o % Replace, Other; Well Pad Condition: oo , Cracked, Replace, Other: Well Location: Gras , Asphalt, Concrete, Woods, Other; Additional Comments: Total Depth of Well (T.D.): ,in screen Length: 5, .1 , 15, 20 feet -other: Depth to Water D.T.W : t11 ) Well Diameter: 0 41 6, 8 Inches -other: Field Parameters measured with: YSI Pro/HACH 2100 Casing Type: v Steel other: Purge Rate: w � mumin Sampling Device: nsta ic, Monsoon, Grundfos, Baiter, Other: Tubing Type: laethylep , Tenon, Other: Measuring Point: TOC other: Pump Intake (ft below M.P.): Color: 6 1444Odor: Yes, FO Time: min Volume Purged DTW: feet Temp CC) pH std units SpC uS/cm DO m /L ORP - mV Turb NTU Comments: Stabalizalion Cnteriaz (mL) (see note beloW)3 +/- 3% +/- 0.1 unit. +/- 3% +/- 10% +/- 10 mV +/- to%° [, ,�'7 1 E. T E� ,-7 i i5 �. �D & , f 5 G n 16 7.T G �K .2 �. Sf 3- 3 q^,317 1avwd ;a. of 'f (5�y $'A ) lf. � . 21- irif i, e) vi 7 .. ?, 6 . , _ i . t"x //'� ?..�j-7 f,'� Is l '� _ �i t'ntCf;*.e6a•+f S i} 37 C) L y-( 2C . 7 5 ..' 5- I . 0 q 1�0 F.r psi �15 2`~1; I 4P2 i Official Sampling Date &Time: �/2 Samples Collected: Analysis Requested: Preservative: Hold Time (days): Lab: VOCs HCL 14 SGS 1,4 Dioxane HCL 14 SGS SW8015(Alcohols/glycols) HCL 14 SGS Notes: n>-oo not mensura aopm �o bonom orwnn noel soar puraina am sampnne m,eauna rosuspemm�s ones mad maybe reserve on me wen bonom. 11nch Well Volume = Ft x 0.041 ',-staun:nnon omona bases on m�eemomm�emoonsssuwe maasuremema. 2inch Well Volume=Ftx0.163 Totaldawduwn in well to be less man an no l0.32 M. Pu,a:ne tale to be lower" as noessaw to keepdawaown below0.1 to (o.az M. 4inch Well Volume = Ft x 0.667 pn+r. tax when mrNaay is over to NTUs. 3.785 L =1 Gallon 1 G tl d . .. d l/ ' , h FIELD DATA FORM E1ZM . Site Name: Swift Creak )' Sample Type: Circle one - ( onitor W frl�PT, Surface Water, Job #: Potable WSW; other) 0397281 Sample ID: �Af — ) 2 Date: �� 0J j SamplingPersonnel: Tara Early, Jordan Woodruff Weather Conditions: Sunny, a y 'Cloudyl Cloudy, Rain; Other Time: , I (✓ rl rrk Well Type: Flush Surface Completion Stick Up Completion Well Tag Present: Ye No Well Locked: Yes, No Lock Present: Yes, No Well ID info. on Tag: IYeo No Well Bolted: �Ye No Well Cap: Yes No Well Cap Condition: Good Replace, Other, Well Pad Condition: tGoo Cracked, Replace, Other: Well Location: Grass, Asphalt, Concrete, Woods, Other; Additional Comments: Total Depth of Well (T.D.): 3}, Screen Length: -'5, 10, 15, 20 feet Cher. Depth to Water D.T.W : 111 (� Well Diameter: z,) 41 s, a nches-other: Field Parameters measured with: YSI Pro/HACH 2100 Casing Type: Pvc, Steel other: Purge Rate: N mUmin Sampling Device: eristalti Monsoon, Gmndfos, Bailer, Other: Tubing Type: j Polyethylene, TeFlon, other: Measuring Point: TOC other: Pump Intake (ft be ow M P.): Color: (jjt or j t+� 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 (mL) (see note below)" +/- 3% +/- 0.1 unit +/- 3% +/- 10% +/- 10 mV L v, +/- 10%, 1 Ll ,L rS 139 9,5 1.56 3-, .-z..5 e i ISOfiO n, 1 7, 1. 10 ?y a, 1 d tr eel,f _ff .i-' 3J0 jj5l ( .� ,Z IZ .; 14A 7 t, ,. 1'7� LowC.r'e.e+t-. Fp 40'�V V - 1PId 4 7 SY�, v, A r) et s e 1.. 3tU Ts�, -7, 11. 6 414 3 3 1 13� a%6,5 :III W 31 2,5 71'l ET'?) Y,sz ,s 1,4 1ll[a 03 1,A5 It (6 `t 2le&5, to 7%T 13(n 1 4-I01y Official Sampling Date &Time: rylZ5 Samples Collected: Analysis Requested: Preservative: Hold Time (days): Lab: VOcs HCL 14 SGS 1,4 Dioxane HCL 14 SGS SW8015(Alcohols/glycols) HCL 14 SGS Notes: ry)-oo not reeaame avow m bonore orwou unm goer pure�ae and aampimg �o �ednaa manape„hng npea may may bet reaupg on ma wan bonom. 1 inch Well Volume = Ft x 0.041 ,-swanaoon amend baaea on rbree reosl reeem eenseauwp maoau,emema. 2inch Well Volume=Ftx 0.163 ;)-total hometown in well to be Iasa wan 0.1 on loan g. Purging ram to be lowered as necesaary to keep drewdown below 0.1 an loan M. 4inch Well Volume = Ft x 0.657 (4)+1- Ig%when m,adi,y m war 10 Nrua. 3.785 L = 1 Galion WATER MATRIX SAMPLING FIELD DATA FORM W ERM Site Name: Swift Creak t Sample Type: Circle one - � Monitor Well, OPT, Surface Water, Potable WSW; other) Job #: 0397281 Sample ID: 'VV -QkD— nZ L ' Date: G� 1 1 Li 'Z Jv\ f Sampling Personnel: Jordan Woodruff are ar y, Weather Conditions: Sunny, Padly Cloudy, cloudy, Rain; other Time: 11ils Well Type: Flush Surface Com leti , Stick Up Completion Well Tag Present: Y No Well Locked: Yes, No Lock Present: es, No Well ID info. on Tag: Yes No Well Bolted: yes, 'yo Well Cap: yes, No Well Cap Condition: Good, Replace, Other; Well Pad Condition: VGood, Cracked, Replace, Other:- lk Lj9r Well Location: Grass, Asphalt, Concrete, Woods, Other; Additional Comments: Total Depth of Well (T,D,): �'� , L Screen Length: '51 10, 15, 20 feet -other: Depth to Water D.T,W : (1) J Well Diameter: 2 61 8 Inches -other: Field Parameters measured with: YSI Pro/HACH 2100 Casing Type: } PVC, Steel other: Purge Rate: ^�{ �I y j V mlJmin Sampling Device: Peristal ic, Monsoon, Grundfos, Bailer, Other: Tubing Type: Polyethylene, Teflon, Other: Measuring Point: 7 TOC other: Pump Intake (W Ie ow M.R): 4� Color: C O C 1It rye _, 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 (nQ (see note below)' +/- 3 +/. 0.1unit +/- 3 +/- 10% +/- 10mV +/- 10%4 I o iw� �.� s,UQ ??I Z5 }"U _; 3�T 53 010O 122-1 112io 00 I*,T3 i 1° 01_,So 2. �1 IQ S L 6 }`i• 11 3 yn 1 1900 l �D Official Sampling Date &Time: 2? Samples Collected: Analysis Requested: Preservative: Hold Time (days): Lab: vOCs HCL 14 SGS 1,4 Dioxane HCL 14 SGS SW8015(Alcohols/glycols) HCL 14 SGS Notes: (0-0o nm measaro aopm �o bonom orwan anni anaa parg�ng ana sampimg m rean<a reeaspemm�g noes may may be raswg on rna weu bonom. 1 inch Well Volume = Ft x 0.041 -s�awiaaoan onraaa bases on urea moo roeemnonseoaava maaaaramema. 2inch Well Volume=Flx 0.163 )-Total drawaown rowan to be lessThan g.r m (gaz n). PurgUrg race to be lowere i as necessary to keep do w lown bamw0.1 m r0.32 nl. 4inch Well Volume = Ft x 0.657 (4).1 rgs when wruaays over 10 eTus, 3.785 L = i Gallon WATER MATRIX SAMPLING 'dace°� FIELD DATA FORM Samples Collected: Analysis Repuested Preservative: Hold Time (daysl: Lab: VOCs HCL 14 SGS 1,4 Dloxane HCL 14 SGS SW8015(Alcohols/glycols) HCL 14 SGS Notes: (1)-Do notmeasure depN to bottom afweli unCl aRer pouring end sampling to retluce resuspending fines Natmay be resting on IM1e well bottom. -SlahllizaEon crRede based an Nrea most recent consecuMe measurements. -Total dmwdown In well to be less in an 0.1 in (0.32 R). Purging rare to be Iowe red as necessary to keep drawcown below 0.1 m (0.32 it). (4)a/. 10% Men ivrbidiry is over 10 Me. 1 inch Well Volume = Ft x 0.041 2inch Well Volume = Ft x 0.163 flinch Well Volume = Ft x 0.657 3.785 L =1 Gallon WATER MATRIX SAMPLING FIELD DATA FORM .. Site Name: Swift Creak Sample Type: Circle one - (Monitor Well, DPT,'Surface ate Potable WSW; other) Job #: 0397281 Sample ID: Date: d V�/ Sampling Personnel: Tara Early Jordan Woodruff Weather Conditions: Sunny, Partly Cloudy,'Cloudy Rain; Other Time: 0 W Well Flush Surface Completion, Stick Up Completion Well Tag Present: Yes, No Well Locked: s, No Lock Present: Yes, No Well ID info. on Tag: Yes, No Well Bolted: Yes, Well Cap: Yes, No Well Cap Condition: Good, ace, Other; Well Pad Condition: Good, Cr Replace, Other: Well Location: Gr sphalt, Concrete, Woods, Other; Additional Comments: Total Depth of Well (T.D.): een Length: 5, 10, 15, 20 feet -other: Depth to Water D.T.W : (1) Well Dia 2, 41 61 8 Inches -other: Field Parameters measured w% YSI Pro/HACH 2100 Casing Type: C, Steel other: Purge Rate: murrain Sampling Device: Peristaltic, oon, Grundfos, Bailer, Other: Tubing T Polyethylene, Teflon, Other: Measuring Point: TOC other: P Intake (ft below M.P.): Color: Odor: Yes, Time: min 'Velnmt4 DTW: feet Temp ec std pH units SPC uS/cm DO m /L ORP mV Turb NTU Comments: Stabalintion Criteria 2 > (see note beloW)s +/- 3% +/. 0.1 unit +/- 3% +/- 10% +/- 10 mV +/_ 10%4 " OC) 63 1 2-S IIzf f\s A- Z0,`( %.Ilp iO�1,2. elm, l (n5 IV 'W/-p L-W$'Zb2012_5 OV I- )t Il IV i ;,L fo,fc 91_3 C2,5o 12V•IS C1 Sbv-0A-vvS-Zoz10�2(� Official Sampling Date &Time: Samples Collected: Analysis Requested: Preservative: VOCs HCL 1,4 Dioxane HCL SW8015(Alcohols/glycols) HCL Notes: (1)-Do not meesme deplM1 to bodom ofwell unfit eder pmgNg and sampling to reduce resnspentlln8 fines d,at may be resfi,g on �M1e well bodam. '��-s�aan:adan ameda baaed on mrea most reaem aonaenewa maaaammanla. ,,)-Total drawdown In well to be leas than 0.1 m (0.32 to. PmgIng rate to be lowered as necessary to heap drawdown below at ad(0.02 d). (4)+/-10%when Fallibly is over 10 NTUs. Hold Time (daysl: Lab: 14 SGS 14 SGS 14 SGS 1 inch Well Volume = Ft x 0.041 2inch Well Volume = Ft x 0.163 flinch Well Volume = Ft x 0.657 3.785 L =1 Gallon Surface Water Sample Matrix and Map' N Purge Logs' Y Well installation summary table' N Calibration Logs' N Well Installation location map N Health and Safety Plan Y Well Inspection & maintenance log' N oone.f.peery): p tl ICE ✓ C ejli I c-�n 0 rl 47 �{. 00 (10 I�Ivv �, 2 1. 00 G, I�v()O `, o.'3 § (\\ \ \ \ L i\\ - . ? © « 2 !2 \ y « 2 v > » \ .�^ - B ID f 2 (\fƒ SOW �.\ \ }& ( ! / \ } \ - HNW » r \{ . Field \\( �► % \a> )/ m \$i 2 7!0 \\)� / \m ;{o kn \\§ 2 § � � ,r@ # \ } #<7°■ � \ \ \\w � « 2). - «- \/ . ( {{2 ƒ{ \) . « { - ° m© ^ « k ® r \ N ƒ Ke Rator rr \ {\k WATER QUALITY MONITORING REPORT — MARCH 2O21 APPENDIX C LABORATORY DATA March 2021 www.erm.com Version: 1.0 Project No.: 0397281 Client: ReUse Technology May 14, 2021 P:\Projects\0397281 ReUse CAP Implementation Swift Cr.DW\Post Closure Monitoring\2021-03 GWS\Swift Creek Water Quality Monitoring Report 05-14-2021 DRAFT TW.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:WC27014 Date Completed:04/09/2021 04/09/2021 3:21 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 56 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: WC27014 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. 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 56 PACE ANALYTICAL SERVICES, LLC Sample Summary ERM NC, Inc. Lot Number: WC27014 Sample Number Sample ID Matrix Date Sampled Date Received 001 MW-01S-WG-20210325 Aqueous 03/25/20211241 03/27/2021 002 MW-01D-WG-20210325 Aqueous 03/25/20211255 03/27/2021 003 MW-02S-WG-20210325 Aqueous 03/25/20211545 03/27/2021 004 MW-02D-WG-20210325 Aqueous 03/25/20211548 03/27/2021 005 MW-03-WG-20210326 Aqueous 03/26/20211100 03/27/2021 006 MW-04-WG-20210326 Aqueous 03/26/20211055 03/27/2021 007 MW-5RS-WG-20210325 Aqueous 03/25/20211050 03/27/2021 008 MW-5RD-WG-20210325 Aqueous 03/25/20211048 03/27/2021 009 MW-06-WG-20210326 Aqueous 03/26/20211145 03/27/2021 010 MW-07-WG-20210325 Aqueous 03/25/20211656 03/27/2021 011 SW-01-WS-20210326 Aqueous 03/26/20210951 03/27/2021 012 SW-02-WS-20210325 Aqueous 03/25/20211300 03/27/2021 013 FD-01-WQ-20210325 Aqueous 03/25/2021 03/27/2021 (13 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 56 PACE ANALYTICAL SERVICES, LLC Detection Summary ERM NC, Inc. Lot Number: WC27014 Sample Sample ID Matrix Parameter Method Result Q Units Page 001 MW-01S-WG-20210325 Aqueous Sulfate 300.0 430 mg/L 6 001 MW-01S-WG-20210325 Aqueous TDS SM 2540C- 6200 mg/L 6 001 MW-01S-WG-20210325 Aqueous Barium 6010D 0.23 mg/L 7 002 MW-01D-WG-20210325 Aqueous Sulfate 300.0 15 mg/L 8 002 MW-01D-WG-20210325 Aqueous TDS SM 2540C- 780 mg/L 8 002 MW-01D-WG-20210325 Aqueous Barium 6010D 0.59 mg/L 9 003 MW-02S-WG-20210325 Aqueous TDS SM 2540C- 340 mg/L 10 003 MW-02S-WG-20210325 Aqueous Barium 6010D 0.23 mg/L 11 004 MW-02D-WG-20210325 Aqueous TDS SM 2540C- 300 mg/L 12 004 MW-02D-WG-20210325 Aqueous Barium 6010D 0.27 mg/L 13 005 MW-03-WG-20210326 Aqueous Sulfate 300.0 240 mg/L 14 005 MW-03-WG-20210326 Aqueous TDS SM 2540C- 830 mg/L 14 005 MW-03-WG-20210326 Aqueous Barium 6010D 0.038 mg/L 15 006 MW-04-WG-20210326 Aqueous Sulfate 300.0 17 mg/L 16 006 MW-04-WG-20210326 Aqueous TDS SM 2540C- 200 mg/L 16 006 MW-04-WG-20210326 Aqueous Barium 6010D 0.059 mg/L 17 006 MW-04-WG-20210326 Aqueous Chromium 6010D 0.14 mg/L 17 007 MW-5RS-WG-20210325 Aqueous Sulfate 300.0 2.3 mg/L 18 007 MW-5RS-WG-20210325 Aqueous TDS SM 2540C- 210 mg/L 18 007 MW-5RS-WG-20210325 Aqueous Barium 6010D 0.074 mg/L 19 008 MW-5RD-WG-20210325 Aqueous Sulfate 300.0 4.7 mg/L 20 008 MW-5RD-WG-20210325 Aqueous TDS SM 2540C- 140 mg/L 20 008 MW-5RD-WG-20210325 Aqueous Barium 6010D 0.096 mg/L 21 009 MW-06-WG-20210326 Aqueous Sulfate 300.0 600 mg/L 22 009 MW-06-WG-20210326 Aqueous TDS SM 2540C- 5800 mg/L 22 009 MW-06-WG-20210326 Aqueous Arsenic 6010D 0.055 mg/L 23 009 MW-06-WG-20210326 Aqueous Barium 6010D 0.075 mg/L 23 009 MW-06-WG-20210326 Aqueous Lead 6010D 0.052 mg/L 23 010 MW-07-WG-20210325 Aqueous Sulfate 300.0 670 mg/L 24 010 MW-07-WG-20210325 Aqueous TDS SM 2540C- 8000 mg/L 24 010 MW-07-WG-20210325 Aqueous Arsenic 6010D 0.080 mg/L 25 010 MW-07-WG-20210325 Aqueous Barium 6010D 0.092 mg/L 25 010 MW-07-WG-20210325 Aqueous Lead 6010D 0.16 mg/L 25 011 SW-01-WS-20210326 Aqueous Sulfate 300.0 2.0 mg/L 26 011 SW-01-WS-20210326 Aqueous TDS SM 2540C- 55 mg/L 26 011 SW-01-WS-20210326 Aqueous Barium 6010D 0.031 mg/L 27 012 SW-02-WS-20210325 Aqueous Sulfate 300.0 2.8 mg/L 28 012 SW-02-WS-20210325 Aqueous TDS SM 2540C- 66 mg/L 28 012 SW-02-WS-20210325 Aqueous Barium 6010D 0.026 mg/L 29 013 FD-01-WQ-20210325 Aqueous Sulfate 300.0 430 mg/L 30 013 FD-01-WQ-20210325 Aqueous TDS SM 2540C- 6100 mg/L 30 013 FD-01-WQ-20210325 Aqueous Barium 6010D 0.22 mg/L 31 (42 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 4 of 56 Inorganic non-metals Client: ERM NC, Inc. Laboratory ID: WC27014-001 Description: MW-01S-WG-20210325 Matrix: Aqueous Date Sampled:03/25/2021 1241 Date Received:03/27/2021 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Sulfate) 300.0 5 03/31/2021 0647 AMR 87623 2 (TDS) SM 2540C-2011 1 04/01/2021 2357 SJL 87676 CAS Analytical Parameter Number Method Result Q LOQ Units Run Sulfate 300.0 430 5.0 mg/L 1 TDS SM 254OC-2011 6200 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 Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure Page 5 of 56 Metals Client: ERM NC, Inc. Laboratory ID: WC27014-001 Description: MW-01S-WG-20210325 Matrix: Aqueous Date Sampled:03/25/2021 1241 Date Received:03/27/2021 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 03/31/2021 1812 CMS2 03/31/2021 1214 87185 1 3005A 601OD 1 04/01/2021 1438 KSH2 03/31/2021 1039 87208 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 0.23 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 Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure Page 6 of 56 Inorganic non-metals Client: ERM NC, Inc. Laboratory ID: WC27014-002 Description: MW-01D-WG-20210325 Matrix: Aqueous Date Sampled:03/25/2021 1255 Date Received:03/27/2021 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Sulfate) 300.0 1 03/31/2021 0706 AMR 87623 1 (TDS) SM 2540C-2011 1 03/30/2021 2320 SJL 87388 CAS Analytical Parameter Number Method Result Q LOQ Units Run Sulfate 300.0 15 1.0 mg/L 1 TDS SM 254OC-2011 780 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 Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure Page 7 of 56 Metals Client: ERM NC, Inc. Laboratory ID: WC27014-002 Description: MW-01D-WG-20210325 Matrix: Aqueous Date Sampled:03/25/2021 1255 Date Received:03/27/2021 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 03/31/2021 1815 CMS2 03/31/2021 1214 87185 1 3005A 601OD 1 04/01/2021 1506 KSH2 03/31/2021 1039 87208 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 0.59 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 Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure Page 8 of 56 Inorganic non-metals Client: ERM NC, Inc. Laboratory ID: WC27014-003 Description: MW-02S-WG-20210325 Matrix: Aqueous Date Sampled:03/25/2021 1545 Date Received:03/27/2021 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Sulfate) 300.0 1 03/31/2021 0803 AMR 87623 1 (TDS) SM 2540C-2011 1 03/31/2021 2151 SJL 87514 CAS Analytical Parameter Number Method Result Q LOQ Units Run Sulfate 300.0 ND 1.0 mg/L 1 TDS SM 2540C-2011 340 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 Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure Page 9 of 56 Metals Client: ERM NC, Inc. Laboratory ID: WC27014-003 Description: MW-02S-WG-20210325 Matrix: Aqueous Date Sampled:03/25/2021 1545 Date Received:03/27/2021 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 03/31/2021 1818 CMS2 03/31/2021 1214 87185 1 3005A 601OD 1 04/01/2021 1510 KSH2 03/31/2021 1039 87208 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 0.23 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 Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure Page 10 of 56 Inorganic non-metals Client: ERM NC, Inc. Laboratory ID: WC27014-004 Description: MW-02D-WG-20210325 Matrix: Aqueous Date Sampled:03/25/2021 1548 Date Received:03/27/2021 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Sulfate) 300.0 1 03/31/2021 0821 AMR 87623 1 (TDS) SM 2540C-2011 1 03/31/2021 2151 SJL 87514 CAS Analytical Parameter Number Method Result Q LOQ Units Run Sulfate 300.0 ND 1.0 mg/L 1 TDS SM 2540C-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 Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure Page 11 of 56 Metals Client: ERM NC, Inc. Laboratory ID: WC27014-004 Description: MW-02D-WG-20210325 Matrix: Aqueous Date Sampled:03/25/2021 1548 Date Received:03/27/2021 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 03/31/2021 1820 CMS2 03/31/2021 1214 87185 1 3005A 601OD 1 04/01/2021 1514 KSH2 03/31/2021 1039 87208 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 Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure Page 12 of 56 Inorganic non-metals Client: ERM NC, Inc. Laboratory ID: WC27014-005 Description: MW-03-WG-20210326 Matrix: Aqueous Date Sampled:03/26/2021 1100 Date Received:03/27/2021 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Sulfate) 300.0 5 03/31/2021 0840 AMR 87623 1 (TDS) SM 2540C-2011 1 03/31/2021 2151 SJL 87514 CAS Analytical Parameter Number Method Result Q LOQ Units Run Sulfate 300.0 240 5.0 mg/L 1 TDS SM 254OC-2011 830 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 Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure Page 13 of 56 Metals Client: ERM NC, Inc. Laboratory ID: WC27014-005 Description: MW-03-WG-20210326 Matrix: Aqueous Date Sampled:03/26/2021 1100 Date Received:03/27/2021 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 03/31/2021 1823 CMS2 03/31/2021 1214 87185 1 3005A 601OD 1 04/01/2021 1517 KSH2 03/31/2021 1039 87208 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 0.038 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 Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure Page 14 of 56 Inorganic non-metals Client: ERM NC, Inc. Laboratory ID: WC27014-006 Description: MW-04-WG-20210326 Matrix: Aqueous Date Sampled:03/26/2021 1055 Date Received:03/27/2021 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Sulfate) 300.0 1 03/31/2021 0859 AMR 87623 1 (TDS) SM 2540C-2011 1 03/31/2021 2151 SJL 87514 CAS Analytical Parameter Number Method Result Q LOQ Units Run Sulfate 300.0 17 1.0 mg/L 1 TDS SM 254OC-2011 200 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 Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure Page 15 of 56 Metals Client: ERM NC, Inc. Laboratory ID: WC27014-006 Description: MW-04-WG-20210326 Matrix: Aqueous Date Sampled:03/26/2021 1055 Date Received:03/27/2021 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 03/31/2021 1826 CMS2 03/31/2021 1214 87185 1 3005A 601OD 1 04/01/2021 1521 KSH2 03/31/2021 1039 87208 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 0.059 0.025 mg/L 1 Cadmium 7440-43-9 6010D ND 0.0050 mg/L 1 Chromium 7440-47-3 6010D 0.14 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 Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure Page 16 of 56 Inorganic non-metals Client: ERM NC, Inc. Laboratory ID: WC27014-007 Description: MW-5RS-WG-20210325 Matrix: Aqueous Date Sampled:03/25/2021 1050 Date Received:03/27/2021 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Sulfate) 300.0 1 03/31/2021 0956 AMR 87623 1 (TDS) SM 2540C-2011 1 03/30/2021 2320 SJL 87388 CAS Analytical Parameter Number Method Result Q LOQ Units Run Sulfate 300.0 2.3 1.0 mg/L 1 TDS SM 254OC-2011 210 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 Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure Page 17 of 56 Metals Client: ERM NC, Inc. Laboratory ID: WC27014-007 Description: MW-5RS-WG-20210325 Matrix: Aqueous Date Sampled:03/25/2021 1050 Date Received:03/27/2021 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 03/31/2021 1828 CMS2 03/31/2021 1214 87185 1 3005A 601OD 1 04/01/2021 1525 KSH2 03/31/2021 1039 87208 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 0.074 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 Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure Page 18 of 56 Inorganic non-metals Client: ERM NC, Inc. Laboratory ID: WC27014-008 Description: MW-5RD-WG-20210325 Matrix: Aqueous Date Sampled:03/25/2021 1048 Date Received:03/27/2021 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Sulfate) 300.0 1 03/31/2021 1015 AMR 87623 1 (TDS) SM 2540C-2011 1 03/30/2021 2320 SJL 87388 CAS Analytical Parameter Number Method Result Q LOQ Units Run Sulfate 300.0 4.7 1.0 mg/L 1 TDS SM 254OC-2011 140 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 Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure Page 19 of 56 Metals Client: ERM NC, Inc. Laboratory ID: WC27014-008 Description: MW-5RD-WG-20210325 Matrix: Aqueous Date Sampled:03/25/2021 1048 Date Received:03/27/2021 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 03/31/2021 1831 CMS2 03/31/2021 1214 87185 1 3005A 601OD 1 04/01/2021 1528 KSH2 03/31/2021 1039 87208 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 0.096 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 Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure Page 20 of 56 Inorganic non-metals Client: ERM NC, Inc. Laboratory ID: WC27014-009 Description: MW-06-WG-20210326 Matrix: Aqueous Date Sampled:03/26/2021 1145 Date Received:03/27/2021 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Sulfate) 300.0 5 03/31/2021 1034 AMR 87623 2 (TDS) SM 2540C-2011 1 04/02/2021 2253 SJL 87837 CAS Analytical Parameter Number Method Result Q LOQ Units Run Sulfate 300.0 600 5.0 mg/L 1 TDS SM 254OC-2011 5800 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 Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure Page 21 of 56 Metals Client: ERM NC, Inc. Laboratory ID: WC27014-009 Description: MW-06-WG-20210326 Matrix: Aqueous Date Sampled:03/26/2021 1145 Date Received:03/27/2021 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 03/31/2021 1834 CMS2 03/31/2021 1214 87185 1 3005A 601OD 1 04/01/2021 1539 KSH2 03/31/2021 1039 87208 Parameter CAS Analytical Number Method Result Q LOQ Units Run Arsenic 7440-38-2 6010D 0.055 0.015 mg/L 1 Barium 7440-39-3 6010D 0.075 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 0.052 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 Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure Page 22 of 56 Inorganic non-metals Client: ERM NC, Inc. Laboratory ID: WC27014-010 Description: MW-07-WG-20210325 Matrix: Aqueous Date Sampled:03/25/2021 1656 Date Received:03/27/2021 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Sulfate) 300.0 5 03/31/2021 1053 AMR 87623 1 (TDS) SM 2540C-2011 1 03/31/2021 2151 SJL 87514 CAS Analytical Parameter Number Method Result Q LOQ Units Run Sulfate 300.0 670 5.0 mg/L 1 TDS SM 254OC-2011 8000 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 Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure Page 23 of 56 Metals Client: ERM NC, Inc. Laboratory ID: WC27014-010 Description: MW-07-WG-20210325 Matrix: Aqueous Date Sampled:03/25/2021 1656 Date Received:03/27/2021 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 03/31/2021 1842 CMS2 03/31/2021 1214 87185 1 3005A 601OD 1 04/01/2021 1543 KSH2 03/31/2021 1039 87208 Parameter CAS Analytical Number Method Result Q LOQ Units Run Arsenic 7440-38-2 6010D 0.080 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 0.16 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 Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure Page 24 of 56 Inorganic non-metals Client: ERM NC, Inc. Laboratory ID: WC27014-011 Description: SW-01-WS-20210326 Matrix: Aqueous Date Sampled:03/26/2021 0951 Date Received:03/27/2021 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Sulfate) 300.0 1 03/31/2021 1150 AMR 87623 1 (TDS) SM 2540C-2011 1 03/31/2021 2151 SJL 87514 CAS Analytical Parameter Number Method Result Q LOQ Units Run Sulfate 300.0 2.0 1.0 mg/L 1 TDS SM 254OC-2011 55 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 Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure Page 25 of 56 Metals Client: ERM NC, Inc. Laboratory ID: WC27014-011 Description: SW-01-WS-20210326 Matrix: Aqueous Date Sampled:03/26/2021 0951 Date Received:03/27/2021 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 03/31/2021 1845 CMS2 03/31/2021 1214 87185 1 3005A 601OD 1 04/01/2021 1547 KSH2 03/31/2021 1039 87208 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 0.031 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 Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure Page 26 of 56 Inorganic non-metals Client: ERM NC, Inc. Laboratory ID: WC27014-012 Description: SW-02-WS-20210325 Matrix: Aqueous Date Sampled:03/25/2021 1300 Date Received:03/27/2021 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Sulfate) 300.0 1 03/31/2021 1208 AMR 87623 1 (TDS) SM 2540C-2011 1 03/31/2021 2151 SJL 87514 CAS Analytical Parameter Number Method Result Q LOQ Units Run Sulfate 300.0 2.8 1.0 mg/L 1 TDS SM 254OC-2011 66 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 Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure Page 27 of 56 Metals Client: ERM NC, Inc. Laboratory ID: WC27014-012 Description: SW-02-WS-20210325 Matrix: Aqueous Date Sampled:03/25/2021 1300 Date Received:03/27/2021 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 03/31/2021 1847 CMS2 03/31/2021 1214 87185 1 3005A 601OD 1 04/01/2021 1551 KSH2 03/31/2021 1039 87208 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 0.026 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 Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure Page 28 of 56 Inorganic non-metals Client: ERM NC, Inc. Laboratory ID: WC27014-013 Description: FD-01-WQ-20210325 Matrix: Aqueous Date Sampled:03/25/2021 Date Received:03/27/2021 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Sulfate) 300.0 5 03/31/2021 1227 AMR 87623 2 (TDS) SM 2540C-2011 1 04/01/2021 2357 SJL 87676 CAS Analytical Parameter Number Method Result Q LOQ Units Run Sulfate 300.0 430 5.0 mg/L 1 TDS SM 254OC-2011 6100 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 Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure Page 29 of 56 Metals Client: ERM NC, Inc. Laboratory ID: WC27014-013 Description: FD-01-WQ-20210325 Matrix: Aqueous Date Sampled:03/25/2021 Date Received:03/27/2021 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 03/31/2021 1850 CMS2 03/31/2021 1214 87185 1 3005A 601OD 1 04/01/2021 1554 KSH2 03/31/2021 1039 87208 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 Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure Page 30 of 56 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 31 of 56 Inorganic non-metals - MB Sample ID: WQ87388-001 Matrix: Aqueous Batch:87388 Analytical Method: SM 2540C-2011 Parameter Result Q Dil LOQ Units Analysis Date TDS ND 25 mg/L 03/30/2021 2320 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 32 of 56 Inorganic non-metals - LCS Sample ID: WQ87388-002 Matrix: Aqueous Batch:87388 Analytical Method: SM 2540C-2011 Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date TDS 1500 1500 1 97 90-110 03/30/2021 2320 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 33 of 56 Inorganic non-metals - MB Sample ID: WQ87514-001 Matrix: Aqueous Batch: 87514 Analytical Method: SM 2540C-2011 Parameter Result Q Dil LOQ Units Analysis Date TDS ND 25 mg/L 03/31 /2021 2151 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 34 of 56 Inorganic non-metals - LCS Sample ID: WQ87514-002 Matrix: Aqueous Batch: 87514 Analytical Method: SM 2540C-2011 Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date TDS 1500 1500 1 98 90-110 03/31/2021 2151 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 35 of 56 Inorganic non-metals - Duplicate Sample ID: WC27014-009DU Matrix: Aqueous Batch: 87514 Analytical Method: SM 2540C-2011 Sample Amount Result %RPD Parameter (mg/L) (mg/L) Q Dil % RPD Limit Analysis Date TDS 5800 5800 1 0.090 20 03/31/2021 2151 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 36 of 56 Inorganic non-metals - MB Sample ID: WQ87623-001 Matrix: Aqueous Batch:87623 Analytical Method: 300.0 Parameter Result Q Dil LOQ Units Analysis Date Sulfate ND 1 1.0 mg/L 03/31/2021 0357 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 56 Inorganic non-metals - LCS Sample ID: WQ87623-002 Matrix: Aqueous Batch:87623 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 03/31/2021 0512 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 56 Inorganic non-metals - MS Sample ID: WC27014-OO6MS Matrix: Aqueous Batch:87623 Analytical Method: 300.0 Sample Spike Amount Amount Result %Rec Parameter (mg/L) (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Sulfate 17 10 26 1 91 90-110 03/31/2021 0918 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 56 Inorganic non-metals - MSD Sample ID: WC27014-OO6MD Matrix: Aqueous Batch:87623 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 17 10 27 1 92 0.49 90-110 20 03/31/2021 0937 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 56 Inorganic non-metals - MB Sample ID: WQ87676-001 Matrix: Aqueous Batch:87676 Analytical Method: SM 2540C-2011 Parameter Result Q Dil LOQ Units Analysis Date TDS ND 25 mg/L 04/01 /2021 2159 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 56 Inorganic non-metals - LCS Sample ID: WQ87676-002 Matrix: Aqueous Batch:87676 Analytical Method: SM 2540C-2011 Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date TDS 1500 1500 1 97 90-110 04/01/2021 2159 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 56 Inorganic non-metals - Duplicate Sample ID: WC27014-001 DU Matrix: Aqueous Batch:87676 Analytical Method: SM 2540C-2011 Sample Amount Result %RPD Parameter (mg/L) (mg/L) Q Dil % RPD Limit Analysis Date TDS 6200 6100 1 0.65 20 04/01/2021 2159 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 56 Inorganic non-metals - Duplicate Sample ID: WC27014-013DU Matrix: Aqueous Batch:87676 Analytical Method: SM 2540C-2011 Sample Amount Result %RPD Parameter (mg/L) (mg/L) Q Dil % RPD Limit Analysis Date TDS 6100 6100 1 0.49 20 04/01/2021 2159 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 56 Inorganic non-metals - MB Sample ID: WQ87837-001 Matrix: Aqueous Batch:87837 Analytical Method: SM 2540C-2011 Parameter Result Q Dil LOQ Units Analysis Date TDS ND 25 mg/L 04/02/2021 2253 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 56 Inorganic non-metals - LCS Sample ID: WQ87837-002 Matrix: Aqueous Batch:87837 Analytical Method: SM 2540C-2011 Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date TDS 1500 1500 1 97 90-110 04/02/2021 2253 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 56 Metals - MB Sample ID: WQ87208-001 Matrix: Aqueous Batch:87208 Prep Method: 3005A Analytical Method: 6010D Prep Date: 03/31/2021 1039 Parameter Result Q Dil LOQ Units Analysis Date Arsenic ND 1 0.015 mg/L 04/01/2021 1431 Barium ND 1 0.025 mg/L 04/01/2021 1431 Cadmium ND 1 0.0050 mg/L 04/01/2021 1431 Chromium ND 1 0.010 mg/L 04/01/2021 1431 Lead ND 1 0.010 mg/L 04/01/2021 1431 Selenium ND 1 0.020 mg/L 04/01/2021 1431 Silver ND 1 0.010 mg/L 04/01/2021 1431 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 56 Metals - LCS Sample ID: WQ87208-002 Matrix: Aqueous Batch: 87208 Prep Method: 3005A Analytical Method: 6010D Prep Date: 03/31/2021 1039 Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Arsenic 0.40 0.39 1 96 80-120 04/01/2021 1435 Barium 2.0 1.9 1 97 80-120 04/01/2021 1435 Cadmium 0.40 0.37 1 93 80-120 04/01/2021 1435 Chromium 2.0 2.0 1 100 80-120 04/01/2021 1435 Lead 0.40 0.38 1 94 80-120 04/01/2021 1435 Selenium 0.40 0.38 1 95 80-120 04/01/2021 1435 Silver 0.40 0.37 1 93 80-120 04/01/2021 1435 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 56 Metals - MS Sample ID: WC27014-001 MS Matrix: Aqueous Batch:87208 Prep Method: 3005A Analytical Method: 6010D Prep Date: 03/31/2021 1039 Sample Spike Amount Amount Result %Rec Parameter (mg/L) (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Arsenic ND 0.40 0.41 1 103 75-125 04/01/2021 1443 Barium 0.23 2.0 2.1 1 95 75-125 04/01/2021 1443 Cadmium ND 0.40 0.39 1 97 75-125 04/01/2021 1443 Chromium ND 2.0 1.9 1 97 75-125 04/01/2021 1443 Lead ND 0.40 0.37 1 92 75-125 04/01/2021 1443 Selenium ND 0.40 0.39 1 98 75-125 04/01/2021 1443 Silver ND 0.40 0.39 1 98 75-125 04/01/2021 1443 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 56 Metals - MSD Sample ID: WC27014-001MD Matrix: Aqueous Batch: 87208 Prep Method: 3005A Analytical Method: 6010D Prep Date: 03/31/2021 1039 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 0.42 1 106 2.1 75-125 20 04/01/2021 1454 Barium 0.23 2.0 2.2 1 96 1.5 75-125 20 04/01/2021 1454 Cadmium ND 0.40 0.40 1 99 1.5 75-125 20 04/01/2021 1454 Chromium ND 2.0 2.1 1 103 6.6 75-125 20 04/01/2021 1454 Lead ND 0.40 0.37 1 93 1.1 75-125 20 04/01/2021 1454 Selenium ND 0.40 0.41 1 102 4.3 75-125 20 04/01/2021 1454 Silver ND 0.40 0.40 1 101 2.8 75-125 20 04/01/2021 1454 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 56 Metals - MB Sample ID: WQ87185-001 Matrix: Aqueous Batch: 87185 Prep Method: Analytical Method: 7470A Prep Date: 03/31/2021 1214 Parameter Result Q Dil LOQ Units Analysis Date Mercury ND 1 0.00020 mg/L 03/31/2021 1736 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 56 Metals - LCS Sample ID: WQ87185-002 Matrix: Aqueous Batch: 87185 Prep Method: Analytical Method: 7470A Prep Date: 03/31/2021 1214 Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Mercury 0.0020 0.0020 1 99 80-120 03/31/2021 1743 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 56 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 53 of 56 PACE ANALYTICAL SERVICES, LLC CO C" QO 00 .74 ar r0 z J r E � 4 _ O xCL 4 m z° W c {} C O rL 9k O O O n C: p �`• 'f�. 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Er 9 ' N 1 ti a r \4 m � m E t s �T ,� � I 4 f j r �` 4 G E: N t 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 56 PACE ANALYTICAL SERVICES, LLC Samples Receipt Checklist (SRC) (MEIDIDUC-15) Revised:9f20j=-O P ce+�1�'k bW'7J Is�uingAuthority: Paoe =NV- VKO_ Pago 1 of 1 Sample receipt Checklist (SRC} tient: e1w Cooler ImpmtedLvy?date' h'.E:[ { IV17fW21 ].nth' WC 7C[4 Meaii3ofrece0_ j P._ce Client Lj UPS L/j F=ff-.,x Orhur; - d Yesi LLJJNo 1 _ WaT� mistody seals present on the coo.lm-? Ycs No I E-.-qA 2_ If "9Wdy WOE Viiir4 ]IYtiLAlt, WQrji L":70' IIILUUL UI'E nrrbmix-0 TjH 34rip 1D: tar _ C LICIAnk Strip 11); ' i 7'esoeC h . NA 06gina] L<mperat:ln; upon receipt s Uerivsd (CL-rrPa2t) rnlpernum upon receipt 7,%50d Silap-G rp 1T7 NA 5.6 i 5.6 to KA l NA uO NA. i NA oC NA f NA oj- Methi2d: ❑T4m74TitLum B1ki k ninA 1B*iiI" Bt Chin I a � _ _ _ IR Gun Cometicni Factor. 0 �C MethM afennlanl- M Wrt Ynn LJ IGe Paeks ❑ ire Q 7dana Yc: QNo lAl 3_ 11telrpentuee ofaup COC&reXt�1dlx1 .Cj°t ,'.4'm Yr4jeajMQUUp:'7 NtAifkd? PM was Notifisd by, a'. -tone i ennail r Pce-to-face (eirele utle)_ Yos No 'NA d_ Is the aaillellQVial 4;o4riai"s packing slip aitaac-1ie-1 Lo L1iis fu_ai? Y NU 5_ Weft piO[Mr12ULA Ly n- aL!elunm(rclinq�3ishcdirzceiwudj followzci7 L5_ Ware sample Ds IJsrod on the C"OC? _._.. _ _.--•_—_-• Yt5 No YcLs ONo 7_ Wr-re sww-rle Ti )b liyl-n[r f n 01 mmplr cantalncrs? d❑ Yes El No $. WL,3 aollrcdon da.c a time Ii=d an th e COC7 nT Yes No 9- Was ocllcction data & time listed on all sarn IP conlainels'� O_K� ❑ No 10. TYL: LLII 4unUicwr IAul infurmttiion (ID, data time) agree with the -COC.'? ,l Yes ND t 1- WM Costs to bo porfomicd listed on the C OC? ❑ Yes Q No 12. Dic, all €araplt,s arrive in tlrr pruper tantainers for eaeh rest wndi or in guwJ avndil:ion (unhrokr-3, lids on, cry )? O Yes ENo 13. Was ade uate sainple volume vaililablO F4 Yes No 14. W= all samples received williin 'ii the hoUne time or 0 hour's, whichever 4 U=cs first$ F-Iycsl VJ No 15. Wcm ally saniples oantainers Lr_i3singlext s (cMe cme) ,ari qln Not. 1iL ted "u" C OC? 16, For V(}A :end RSK-175 samples, were bubbles lt1 ill dla:rle4er) in "y ofthce VOA vial.V Ye,,; Q No O�e NA Lj No IJNAI:.Wr,ra']DROA114stlsinutricn(spm ICSrM;1V;datEllpHof<27 YLtiLJ Nn r%A 19. Wrn H 1 CYF'Fl MV 9HMPI r!ti TP.Ci:"yF.d li a PH.LP 12 and Sulfide salT, les naceived at 3 }4 3 El Y ❑I1Va J !*!}4 19. Were a-1 applic-abie Nl`-Tj17K . cyaridl pheno .0 ,3 ti .5mg L# senlples yea s TosiduaJ ch:odna? Q No iJ 20 were C.I m r Tmrks!rCQUests [I.e, requested dilutions. MS,MSD designations, e[-c_,_Yes� oOM17L framoribed fron the COC into the comment secliu,i ii r LIMS7 ', YE-. 'NDI Ill.WiGt!te quotenumber Astedor_ the conttiiHet Ia1se171rytm,Qunl-a4NL-v Sankple IyxES rwAtioil 14'ILLSt coUil}Iexd FOr any Salllple(s') 13340riW* ln+eseMor'.vidt hCadgaM) Sample(i)YA were received inca7ndy pmseaved aLid were adjusted accordingly in sample- rec,-j0ng wish Nh mT. of (:irrlo ono, 1-7SC d, FIN03, HC1, Naf)H using SKV Time rtfpqrne:rvoicn hA If more 1iaii one pt-eEervanye is needed, please noo in die comment* below_ S atnple(s) NA were received with bLibbtes >6 mm in d=amet EL ._,,..r_ wcrc recaMA with TR-C > 1},5 ir,C'i. (If il•19 is use) and wcrz adjusted accr+rd:l1�l in sample remiving with podium thiwulfate [Na�S.O.,) with Shealy TD; NA SR hiruulc Inhcls ipplicrl by: MEH Darr: Y=021 COL71_ller_15: Air brll ctcra'amie 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 56 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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