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HomeMy WebLinkAboutCCB0057_Nash_SwiftCreek_StructuralFill_May2023GW_FID1827372_20240201ReUse Technology Water Quality Monitoring and Corrective Action Effectiveness Report — May 2023 Swift Creek CCB Structural Fill — CCB0057 Battleboro, Nash County North Carolina November 6, 2023 Project No.: 0397281 BERM The business of sustainability November 6, 2023 Water Quality Monitoring and Corrective Action Effectiveness Report - May 2023 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 2023 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 Brian Wilson, P.G. Principal -in -Charge www.erm.com Version: 1.0 Project No.: 0397281 Client: ReUse Technology November 6, 2023 WATER QUALITY MONITORING AND CORRECTIVE ACTION EFFECTIVENESS REPORT —MAY 2023 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........................................................................................................9 4.3 Laboratory Data Quality Analysis..........................................................................................................9 5. SUMMARY......................................................................................................................................... 9 APPENDIX A HISTORICAL GROUNDWATER AND SURFACE WATER RESULTS APPENDIX B FIELD DATA SHEETS APPENDIX C LABORATORY DATA APPENDIX D MANN KENDALL ANALYSIS REPORT List of Figures Figure 1 Site Location Map Figure 2 Site Map and Monitoring Well Locations Figure 3 Shallow Groundwater Potentiometric Map — May 2023 Figure 4 Groundwater Analytical Sample Results — May 2023 Figure 5 Groundwater Analytical Sample Results — Sulfate — Surficial Aquifer Figure 6 Hydrogeologic Profile A -A' Figure 7 Sulfate Concentrations over Time t_ist of Tables Table 1 Monitoring Well Construction Data Summary Table 2 Historical Groundwater Elevation Data Table 3 Groundwater and Surface Water Analytical Sample Results Table 4 Groundwater and Surface Water Field Parameter Results www.erm.com Version: 1.0 Project No.: 0397281 Client: ReUse Technology November 6, 2023 Page i WATER QUALITY MONITORING AND CORRECTIVE ACTION INTRODUCTION AND SITE HISTORY EFFECTIVENESS REPORT — MAY 2023 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 to summarize 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 previously completed 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 consists of 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 Site 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 groundwater quality standards listed in Title 15A North Carolina Administrative Code (NCAC), Subchapter 2L .0202 (2L standards), in 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 November 6, 2023 Page 1 WATER QUALITY MONITORING AND CORRECTIVE ACTION INTRODUCTION AND SITE HISTORY EFFECTIVENESS REPORT — MAY 2023 Battleboro, Nash County In January 2008, a dewatering subsurface drain was installed consisting of a 6-inch polyvinyl chloride (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 groundwater monitoring well locations and three 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 2L 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 2L 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 submitted a Corrective Action Application, dated October 16, 2014, to the Division of Waste Management 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 CAP was delayed approximately one 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 monitoring 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 monitoring 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 November 6, 2023 Page 2 WATER QUALITY MONITORING AND CORRECTIVE ACTION CONCEPTUAL SITE MODEL EFFECTIVENESS REPORT — MAY 2023 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 The following updated conceptual site model (CSM) has been developed based on the corrective action and monitoring work performed by ERM, as well as previous site investigation activities performed by others. 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 groundwater 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 clay 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 to be absent in the borings for former wells MW-5S, MW-5D, P-23 and P-24. The alluvial deposits at the Site are underlain by the Yorktown Formation, a regionally extensive marine deposit. The upper Yorktown Formation, consisting typically of greenish -gray, clayey, silty, Shelly, very fine sands, is encountered at the Site from approximately 13 feet below ground surface (bgs) to the maximum depth of investigation of 35 feet bgs, and has a low permeability (average of 0.002 feet/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 CSM for contaminant fate and transport are summarized as follows: ■ The depth to groundwater ranges from the ground surface at the creeks and swamps to more than 6 feet bgs 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 November 6, 2023 Page 3 WATER QUALITY MONITORING AND CORRECTIVE ACTION WATER QUALITY MONITORING ACTIVITIES EFFECTIVENESS REPORT — MAY 2023 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 groundwater concentrations are below 2L standards. Similarly, there is no evidence of affected groundwater to the west (upgradient) as demonstrated 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 reduction of 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 in the following table. www.erm.com Version: 1.0 Project No.: 0397281 Client: ReUse Technology November 6, 2023 Page 4 WATER QUALITY MONITORING AND CORRECTIVE ACTION WATER QUALITY MONITORING ACTIVITIES EFFECTIVENESS REPORT — MAY 2023 Battleboro, Nash County Groundwater •. • •. • 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 Total Dissolved Solids 500 NE pH 6.5-8.5 6.0-9.0 Title 15A NCAC, Subchapter 2L .0202, (April 1, 2022) 2 Title 15A NCAC, Subchapter 2B .0200 (2B standards) for Class C Waters (July 26, 2021) NE = Not Established mg/L = milligrams per liter h = hardness dependent dissolved metal standard Water quality monitoring is conducted in accordance with the NCDEQ-approved Corrective Action Plan (ERM, March 2015). The following sections summarize 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 May 25-26, 2023. Groundwater and surface water samples were collected from the following monitoring wells and surface water locations. Monitoring 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 M W-7 M W-8 Subtotal: 11 Subtotal: 2 The monitoring well and surface water locations are shown on Figure 2. Monitoring well construction details are summarized in Table 1. Surface water location SW-3 was inaccessible during the sampling event due to the presence of a biological hazard (water moccasin); therefore, no sample could be collected from this location. www.erm.com Version: 1.0 Project No.: 0397281 Client: ReUse Technology November 6, 2023 Page 5 WATER QUALITY MONITORING AND CORRECTIVE ACTION MONITORING RESULTS EFFECTIVENESS REPORT — MAY 2023 Battleboro, Nash County All monitoring 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 and oxidation-reduction potential) were measured for each groundwater and surface water sample by calibrated meters. Well purge logs were completed for each monitoring well to document the stabilization of field parameters prior to sample collection. Well purge logs included in the Field Data Sheets 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 601 OD Arsenic Barium Cadmium Chromium (Total) Lead Selenium Silver EPA Method 7470A Mercury EPA 300.0 Sulfates SM 2540 C Total Dissolved Solids 4. MONITORING RESULTS 4.1 Groundwater Monitoring Results Groundwater monitoring activities were conducted at 11 monitoring 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 May 25, 2023 ranged from 89.94 feet above mean sea level (ft MSL) at MW-8 located on the east (downgradient) side of the Site to 94.53 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 May 2023 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 serves as a groundwater discharge zone. Using the current groundwater elevation data, the hydraulic gradients for the Site were calculated and are summarized in the following table. www.erm.com Version: 1.0 Project No.: 0397281 Client: ReUse Technology November 6, 2023 Page 6 WATER QUALITY MONITORING AND CORRECTIVE ACTION EFFECTIVENESS REPORT - MAY 2023 Battleboro, Nash County MONITORING RESULTS Horizontal Hvdraulic Gradients MW-5RS 90.86 0.79 700.00 0.0011 MW-6 90.07 M W-4 94.53 2.53 400.00 0.0063 M W-3 92.00 Averaae Hvdraulic Gradient 0.0037 Vertical Hvdraulic Gradients MW-1 S 88.84 90.84 0.06 MW-1 D 69.10 90.78 19.74 0.0030 Down MW-2S 81.07 MW-2D 61.22 90.74 0.13 19.85 0.0065 Down 90.61 MW-5RS 85.80 MW-5RD 66.07 90.86 -2.46 19.73 -0.1247 Up 93.32 Groundwater seepage velocities were calculated using Darcy's equation, summarized as: V=(Kxi)/ne Where: 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, the estimated groundwater seepage velocity in the surficial aquifer zone using a primary porosity range of 10-25% is approximately 3 to 7.5 feet per year (ft/yr) based on the May 2023 hydraulic gradients and the previously calculated mean hydraulic conductivities. Seepage Velocity Range (Surficial Aquifer) = = (0.55) (0.0037) / (0.25) = 8.17E-03 ft/day = (0.55) (0.0037) / (0.10) = 2.04E-02 ft/day Range 25% 2.98 ft/yr of porosity 10% 7.46 ft/yr Seepage Velocity Approximate Range of 3 to 7.5 ft/yr www.erm.com Version: 1.0 Project No.: 0397281 Client: ReUse Technology November 6, 2023 Page 7 WATER QUALITY MONITORING AND CORRECTIVE ACTION MONITORING RESULTS EFFECTIVENESS REPORT — MAY 2023 Battleboro, Nash County The May 2023 groundwater analytical results are summarized in Table 3 for metals, sulfate and total dissolved solids (TDS), and in Table 4 for field parameters. Constituents that exceeded 2L standards are summarized on Figure 4. Laboratory analytical reports for the sampling event are provided in Appendix C. A historical groundwater data summary is provided in Appendix A. For the May 2023 monitoring event, four analytes were detected above their respective NC 2L groundwater standards, as summarized in the following table. Current Maximum Concentrations in Groundwater — May 2023 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 five of the 11 monitoring 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 monitoring well MW-1 S (654 mg/L) located on the eastern (downgradient) side of the Site; however, sulfate concentrations decrease in the downgradient direction, as evidenced by the sulfate concentration (541 mg/L) detected in the sample collected from the furthest hydraulically downgradient monitoring well (MW-8). Graphs of sulfate concentrations over time for select monitoring wells are presented in Figure 7. Since the completion of the corrective action in January 2018, the graphs indicate fluctuating but overall decreasing sulfate concentration trends at MW-3, MW-6, MW-7 and MW-8, where the most elevated sulfate levels have historically been observed. Notably low values of pH were measured in the groundwater samples from MW-6 (3.5), MW-7 (3.5), and MW-8 (3.7). The low pH values at the three wells are consistent with historical monitoring results, and correlate with detections of arsenic and lead, in addition to sulfate, at concentrations above their respective North Carolina 2L groundwater standards at the three wells. There were no exceedances of 2L standards in the groundwater samples collected from monitoring wells MW-5RS and MW-5RD located on the west (upgradient) side of the Site, nor in the sample collected from monitoring well MW-4, located near the southwest limit of the CCB fill area. The groundwater sample collected from monitoring well MW-4 exhibited an exceedance of the 2L standard for arsenic during the November 2021 monitoring event, which was not consistent with historical sampling events. The groundwater sample collected from monitoring well MW-4 during the May 2023 event was again below the 2L standard for arsenic. Historically, there have been no detectable levels of arsenic at MW-4 since 2010, with exception of the anomalous result from the November 2021 event. On the east side of the Site, sulfate and TDS concentrations exceeded their 2L standards in groundwater samples collected from MW-1 S. The sulfate concentrations exhibit an increasing trend in groundwater sample collected from MW-1 S; however, the May 2023 concentrations are within the range of historical monitoring results. All remaining constituent concentrations in samples from the four monitoring wells located on the east side of the Site (MW-1 S, MW-1 D, MW-2S and MW-21D) were below their respective 2L standards with the exception of a concentration of TDS in MW-1 D. The elevated TDS concentration at www.erm.com Version: 1.0 Project No.: 0397281 Client: ReUse Technology November 6, 2023 Page 8 WATER QUALITY MONITORING AND CORRECTIVE ACTION EFFECTIVENESS REPORT — MAY 2023 Battleboro, Nash County SUMMARY MW-1 D does not appear to be attributable to sulfate or metals, which were below their respective 2L standards. Sulfate and TDS concentrations in the groundwater sample collected from well MW-3, which is located on the central portion of the Site along the southern limit of the CCB fill area, were detected above their 2L standards, which is consistent with historical monitoring results. However, concentrations of both constituents detected during the May 2023 event were notably lower than in past events. Sulfate concentrations in MW-3 show an overall decreasing trend following completion of the corrective action activities. 4.2 Surface Water Monitoring Results Consistent with historical monitoring results, all May 2023 surface water monitoring results were below the respective North Carolina 2B surface water standards for samples collected from Swift Creek (SW-1) and Lane Swamp (SW-2). As noted previously, surface water location SW-3 was inaccessible and could not be sampled during the May 2023 monitoring event due to the presence of a biological hazard. The May 2023 surface water sampling results are summarized in Table 3. Laboratory analytical reports for the surface water samples are provided in Appendix C. Historical surface water data is summarized in Appendix A. 4.3 Laboratory Data Quality Analysis Quality assurance/quality control (QA/QC) samples collected during the May 2023 groundwater sampling activities included one blind duplicate sample collected at MW-1S. The duplicate and parent sample results for MW-1S can be compared in Table 3. The analytical results of the MW-1S and duplicate groundwater samples compare favorably, indicating no analytical discrepancy. 4.4 Mann Kendall Analysis As part of the five year post corrective action review, a statistical analysis was conducted to determine the corrective action effectiveness. Data was used from the first sampling event post corrective action up to the most recent data collected in May 2023. Mann Kendall analysis is a common statistical tool for accessing changes in concentration over time. The results from the statistical analysis can be referenced in Appendix D. Following review of the analysis it is noted that sulfate is showing a stable to increasing trend at MW-1S. Sulfate concentrations in MW-3 are showing an overall significant reduction in sulfate concentrations. 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 previously completed corrective actions. The May 2023 water quality monitoring event was conducted to evaluate groundwater and surface water quality at the Site approximately 5.4 years after corrective action implementation. Since the completion of www.erm.com Version: 1.0 Project No.: 0397281 Client: ReUse Technology November 6, 2023 Page 9 WATER QUALITY MONITORING AND CORRECTIVE ACTION EFFECTIVENESS REPORT — MAY 2023 Battleboro, Nash County SUMMARY the corrective action in 2018, the four monitoring wells (MW-3, MW-6, MW-7 and MW-8) where the greatest sulfate concentrations in groundwater have historically been detected continue to exhibit overall decreasing trends as shown in Figure 7. Decreasing sulfate concentration trends indicate that the corrective action is effectively mitigating groundwater quality impacts at the Site. The May 2023 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, with the next monitoring event tentatively planned for December 2023. www.erm.com Version: 1.0 Project No.: 0397281 Client: ReUse Technology November 6, 2023 Page 10 WATER QUALITY MONITORING AND CORRECTIVE ACTION EFFECTIVENESS REPORT —MAY 2023 Battleboro, Nash County SUMMARY Tables Table 1 Monitoring Well Construction Data Summary Table 2 Historical Groundwater Elevation Data Table 3 Groundwater and Surface Water Analytical Sample Results Table 4 Groundwater and Surface Water Field Parameter Results www.erm.com Version: 1.0 Project No.: 0397281 Client: ReUse Technology November 6, 2023 Page 12 TABLE 1 MONITORING WELL CONSTRUCTION DATA SUMMARY SWIFT CREEK - CCB0057 BATTLEBORO, NORTH CAROLINA Monitoring Well Top of Casing Elev. ft MSL Ground Surface Elev. ft MSL Casing Stick Up ft MSL Screen Interval ft MSL Total Depth (TOC) ft MSL 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-2D 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-5D 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 Notes TOC - top of casing ft MSL - feet above mean sea level TABLE 2 HISTORICAL GROUNDWATER ELEVATION DATA SWIFT CREEK - CCB0057 BATTLEBORO, NORTH CAROLINA Depth Elevation Depth Elevation F Depth Elevation Depth Elevation Depth Elevation Depth Elevation Depth Elevation Depth Elevation Depth Elevation Depth Elevation Depth Elevation Depth Elevation Depth Elevation Depth Elevation Gauging Date ft BTOC ft MSL ft BTOC ft MSL ft BTOC ft MSL ft BTOC ft MSL ft BTOC ft MSL ft BTOC ft MSL ft BTOC ft MSL ft BTOC ft MSL ft BTOC ft MSL ft BTOC ft MSL ft BTOC ft MSL ft BTOC ft MSL ft BTOC ft MSL ft BTOC ft MSL Well Identification MW-is MW-1D MW-2S MW-213 MW-3 MW-4 MW-5S MW-51) MW-6 MW-7 MW-8 MW-5RS MW-5RD Lane Swamp 92.25 TOC Elevation (ft MSL): 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 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 8-18 N/A Screened Interval (Ft BGL) 3-13 23-33 6-16 26-36 7-17 6-16 25-35 6-16 6-16 6-16 8-18 30-35 N/A Geologic Zone Screened Surficial Surficial Surficial Deep (Yorktown) I Surficial Surficial Surficial Deep (Yorktown) Surficial Surficial Surficial Surficial Deep (Yorktown) 12-Jan-2005 8.21 91.33 8.57 91.33 4.72 90.15 4.7 90.52 9.65 92.50 11.24 94.82 6.01 96.67 6.4 96.27 7.17 91.24 7.63 91.00 NM 1-Aug-2006 8.11 91.43 8.28 91.62 NM -- NM -- 9.48 92.67 10.15 95.91 5.86 96.82 5.68 96.99 7.18 91.23 7.74 90.89 NM 6-Sep-2006 8.69 90.85 9.05 90.85 4.83 90.04 4.87 90.35 10.32 91.83 11.41 94.65 6.94 95.74 6.84 95.83 7.74 90.67 8.66 89.97 NM 4-Apr-2007 7.80 91.74 8.18 91.72 4.4 90.47 4.75 90.47 9.31 92.84 9.96 96.10 6.12 96.56 5.96 96.71 7.28 91.13 7.8 90.83 4.84 90.58 21-Aug-2007 10.89 88.65 11.30 88.60 6.77 88.10 6.82 88.40 11.4 90.75 13.28 92.78 9.57 93.11 9.42 93.25 10.8 87.61 10.71 87.92 7.67 87.75 21-Oct-2007 11.40 88.14 11.76 88.14 7.31 87.56 7.43 87.79 12.98 89.17 14.06 92.00 10.62 92.06 10.63 92.04 11.9 86.51 11.41 87.22 8.3 87.12 31-Jan-2008 9.13 90.41 9.42 90.48 4.86 90.01 5.02 90.20 10.7 91.45 14.11 91.95 7.65 95.03 8.11 94.56 8.44 89.97 8.71 89.92 5.57 89.85 -- 22-Mar-2008 8.10 91.44 8.44 91.46 4.4 90.47 4.54 90.68 9.18 92.97 13.28 92.78 6.98 95.70 7.34 95.33 7.18 91.23 7.79 90.84 4.78 90.64 2.51 89.74 9-Apr-2008 9.26 90.28 9.47 90.43 4.58 90.29 5.02 90.20 10.98 91.17 14.82 91.24 10.87 91.81 10.72 91.95 8.92 89.49 9.06 89.57 5.97 89.45 3.1 89.15 17-Jun-2008 9.12 90.42 9.42 90.48 5.03 89.84 5.23 89.99 10.54 91.61 14.05 92.01 8.93 93.75 8.92 93.75 8.36 90.05 9.06 89.57 6.09 89.33 3.2 89.05 13-Jan-2009 8.22 91.32 8.55 91.35 4.26 90.61 4.46 90.76 9.35 92.80 13.41 92.65 7.16 95.52 7.54 95.13 7.02 91.39 7.6 91.03 4.58 90.84 2.52 89.73 31-Mar-2009 7.60 91.94 7.96 91.94 4.36 90.51 4.38 90.84 6.74 95.41 12.43 93.63 5.98 96.70 6.22 96.45 6.81 91.60 7.2 91.43 4.21 91.21 2.5 89.75 23-Jun-2009 8.62 90.92 8.92 90.98 4.41 90.46 4.77 90.45 10.06 92.09 13.86 92.20 9.83 92.85 9.63 93.04 7.72 90.69 8.52 90.11 5.56 89.86 2.9 89.35 30-Sep-2009 8.86 90.68 9.18 90.72 4.64 90.23 5.00 90.22 10.82 91.33 14.7 91.36 10.4 92.28 10.26 92.41 8.08 90.33 8.51 90.12 5.5 89.92 3.15 89.10 15-Dec-2009 7.54 92.00 NM -- 4.22 90.65 NM -- 8.68 93.47 12.85 93.21 6.3 96.38 NM -- 6.78 91.63 7.13 91.50 4.21 91.21 2.6 89.65 31-Mar-2010 7.37 92.17 7.74 92.16 2.42 92.45 4.46 90.76 8.64 93.51 12.52 93.54 5.8 96.88 6.19 96.48 6.77 91.64 7.93 90.70 3.96 91.46 2.14 90.11 29-Jun-2010 9.35 90.19 NM -- 4.94 89.93 NM -- 10.66 91.49 14.62 91.44 9.97 92.71 NM -- 9.21 89.20 9.25 89.38 6.31 89.11 3.35 88.90 28-Sep-2010 9.23 90.31 10.05 89.85 4.8 90.07 5.50 89.72 11.55 90.60 14.8 91.26 10.85 91.83 11.1 91.57 9.11 89.30 8.52 90.11 5.48 89.94 4.1 88.15 13-Dec-2010 8.54 91.00 NM -- 4.36 90.51 NM -- 10.12 92.03 14.02 92.04 8.72 93.96 NM -- 7.37 91.04 7.93 90.70 4.81 90.61 2.02 90.23 28-Mar-2011 8.03 91.51 8.42 91.48 4.35 90.52 4.67 90.55 9.17 92.98 13.32 92.74 7.45 95.23 7.84 94.83 7.25 91.16 7.53 91.10 4.42 91.00 2.85 89.40 26-Jun-2011 10.05 89.49 10.35 89.55 6.02 88.85 6.32 88.90 11.23 90.92 14.82 91.24 10.59 92.09 10.43 92.24 9.2 89.21 9.98 88.65 7.04 88.38 2.85 89.40 28-Sep-2011 7.84 91.70 NM -- 4.24 90.63 NM -- 8.9 93.25 13.09 92.97 7.62 95.06 NM -- 7.13 91.28 7.71 90.92 4.83 90.59 2.2 90.05 18-Dec-2011 8.00 91.54 8.35 91.55 4.32 90.55 4.65 90.57 8.88 93.27 13.1 92.96 7.35 95.33 7.7 94.97 6.98 91.43 7.53 91.10 4.47 90.95 1.8 90.45 23-Mar-2012 8.01 91.53 8.35 91.55 4.31 90.56 4.56 90.66 8.89 93.26 13.01 93.05 7.35 95.33 7.66 95.01 7.03 91.38 7.75 90.88 4.8 90.62 1.65 90.60 28-Jun-2012 8.39 91.15 8.72 91.18 4.65 90.22 4.92 90.30 9.4 92.75 13.38 92.68 8.52 94.16 8.54 94.13 7.42 90.99 8.45 90.18 5.63 89.79 1.95 90.30 18-Sep-2012 7.41 92.13 7.86 92.04 4.16 90.71 4.5 90.72 8.21 93.94 12.73 93.33 7.21 95.47 7.45 95.22 6.82 91.59 7.37 91.26 4.51 90.91 1.52 90.73 17-Dec-2012 8.04 91.50 8.44 91.46 NM -- NM -- 9.19 92.96 13.36 92.70 8.55 94.13 8.76 93.91 6.82 91.59 7.37 91.26 4.51 90.91 1.45 90.80 26-Mar-2013 7.87 91.67 8.13 91.77 4.23 90.64 4.46 90.76 8.71 93.44 12.84 93.22 7.03 95.65 7.38 95.29 7.08 91.33 7.26 91.37 4.22 91.20 2.05 90.20 12-Apr-2013 8.30 91.24 8.59 91.31 4.31 90.56 4.72 90.50 9.59 92.56 14.13 91.93 8.48 94.20 8.7 93.97 7.47 90.94 7.8 90.83 4.82 90.60 2.85 89.40 25-Jun-2013 8.00 91.54 8.34 91.56 4.18 90.69 4.57 90.65 9.05 93.10 12.97 93.09 6.92 95.76 7.44 95.23 7.05 91.36 7.7 90.93 4.69 90.73 2.45 89.80 26-Sep-2013 8.38 91.16 8.67 91.23 4.32 90.55 4.71 90.51 9.57 92.58 13.65 92.41 9.5 93.18 9.5 93.17 8.75 89.66 8.19 90.44 5.25 90.17 3.05 89.20 28-Mar-2014 7.74 91.80 8.03 91.87 4.33 90.54 4.54 90.68 8.56 93.59 12.53 93.53 6.68 96.00 7.03 95.64 6.92 91.49 7.23 91.40 4.39 91.03 1.85 90.40 27-Jun-2014 8.43 91.11 8.74 91.16 4.45 90.42 4.8 90.42 9.69 92.46 13.93 92.13 7.78 94.90 8.8 93.87 8.33 90.08 8.54 90.09 5.6 89.82 2.95 89.30 26-Sep-2014 7.82 91.72 8.20 91.70 3.91 90.96 4.28 90.94 8.62 93.53 13.81 92.25 6.68 96.00 7.33 95.34 7.1 91.31 7.36 91.27 4.4 91.02 1.95 90.30 17-Dec-2014 7.88 91.66 8.30 91.60 4.22 90.65 4.53 90.69 9.01 93.14 13.71 92.35 7.94 94.74 7.46 95.21 7.24 91.17 7.4 91.23 4.34 91.08 2.1 90.15 28-Jun-2018 9.36 90.18 9.55 90.35 4.56 90.31 4.96 90.26 10.35 91.80 11.65 94.41 Abandoned 2015 Abandoned 2015 8.68 89.73 9.12 89.51 5.86 89.56 6.84 91.96 10.52 88.05 22-Jan-2019 8.68 90.86 9.14 90.76 3.8 91.07 4.55 90.67 9.71 92.44 11.24 94.82 Abandoned 2015 Abandoned 2015 7.78 90.63 7.93 90.70 4.93 90.49 6.59 92.21 5.75 92.82 17-Jun-2019 8.90 90.64 10.16 89.74 4.06 90.81 4.56 90.66 10.54 91.61 11.96 94.10 Abandoned 2015 Abandoned 2015 8.19 90.22 8.55 90.08 5.35 90.07 6.98 91.82 8.95 89.62 9-Mar-2020 8.66 90.88 8.99 90.91 3.95 90.92 4.45 90.77 9.74 92.41 11.26 94.80 Abandoned 2015 Abandoned 2015 7.79 90.62 8.08 90.55 4.61 90.81 5.81 92.99 6.01 92.56 9-Nov-2020 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 8.2 90.43 4.89 90.53 5.7 93.10 6.03 92.54 25-Mar-2021 8.52 91.02 8.82 91.08 3.8 91.07 4.35 90.87 9.61 92.54 11.3 94.76 Abandoned 2015 Abandoned 2015 7.61 90.80 7.5 91.13 NM NM 5.88 92.92 5.28 93.29 1-Nov-2021 8.77 90.77 9.44 90.46 4.21 90.66 4.72 90.50 10.91 91.24 12.94 93.12 Abandoned 2015 Abandoned 2015 8.52 89.89 8.7 89.93 5.36 90.06 7.31 91.49 7.35 91.22 22-Mar-2022 8.63 90.91 9.15 90.75 4.19 90.68 4.65 90.57 9.99 92.16 11.56 94.50 Abandoned 2015 Abandoned 2015 8.09 90.32 8.45 90.18 5.05 90.37 6.92 91.88 5.79 92.78 19-Oct-2022 9.11 90.43 10.38 89.52 4.24 90.63 5.24 89.98 10.95 91.20 13.11 92.95 Abandoned 2015 Abandoned 2015 8.63 89.78 8.71 89.92 5.41 90.01 6.85 91.95 7.53 91.04 23-May-2023 1 8.70 90.84 9.12 90.78 4.13 90.74 4.61 90.61 10.15 92.00 11.53 94.53 Abandoned 2015 Abandoned 2015 1 8.34 90.07 8.69 89.94 5.35 90.07 7.94 90.86 5.25 93.32 NE - Not Established -- = Not Measured BTOC = Below Top of Casing BGL - Below ground level ft MSL = feet above Mean Sea Level TOC Stickup data per Sherrill Environmental, Assessment Monitoring Report , Feb 10, 2015 10-7-20 Note: Historical GW elevation values corrected for MW-3 Page 2 of 4 RJRTIDRAFT Swift Creek Tables 2023 05 SB.xlsA2. GW Elevations TABLE 3 GROUNDWATER AND SURFACE WATER ANALYTICAL SAMPLE RESULTS SWIFT CREEK STRUCTURAL FILL - CCB0057 BATTLEBORO, NORTH CAROLINA Page 3 of 4 370 Date D m 0 po °7 C n a C 3 s o o D. N C , 3 r- N 0- m a c Z cn m C 3 Cn - < cn N m 0 cn cn a s - f<D O Cn a m NC 2L Groundwater Standard 0.01 0.7 0.002 0.01 0.015 0.001 0.02 0.02 250 500 NC 2B Surface Water Standard 0.15 NE h h 0.025 0.000012 0.005 0.00006 NE NE GROUNDWATER MONITORING WELLS MW-1 S 5/26/23 <0.03 0.104 <0.01 <0.01 <0.025 <0.0002 <0.04 <0.01 622 4,320 FD-01 (MW-1 S) 5/26/23 <0.03 0.111 <0.01 <0.01 <0.025 <0.0002 <0.04 <0.01 654 4,420 MW-1 D 5/26/23 <0.03 0.600 <0.01 <0.01 <0.025 <0.0002 <0.04 <0.01 17.6 880 MW-2S 5/26/23 <0.03 0.114 <0.01 <0.01 <0.025 <0.0002 <0.04 <0.01 <1.0 211 MW-2D 5/26/23 <0.03 0.271 <0.01 <0.01 <0.025 <0.0002 <0.04 <0.01 1.8 317 MW-3 5/26/23 <0.03 0.0398 <0.01 <0.01 0.0111J <0.0002 <0.04 MW-4 5/26/23 <0.03 0.0657 <0.01 <0.01 <0.025 <0.0002 <0.04 <0.01 17.4 266 MW-5RS 5/25/23 <0.03 0.084 <0.01 <0.01 <0.025 <0.0002 <0.04 <0.01 3.2 249 MW-5RD 5/25/23 <0.03 0.143 <0.01 <0.01 <0.025 <0.0002 <0.04 <0.01 8.2 183 MW-6 5/26/23 0.0461 0.0637 0.0598 0.0656 <0.01 <0.01 <0.0002 <0.200 <0.05 569 6,7 MW-7 5/26/23 0.0874 <0.01 <0.01 0.185 <0.0002 <0.200 <0.05 565 10,700 MW-8 5/26/23 0.106 <0.01 0.0043J 0.148 <0.0002 <0.400 <0.05 8,400 SURFACE WATER SW-01 5/25/23 <0.03 0.0376 <0.01 <0.01 <0.025 <0.0002 <0.04 <0.01 6.0 76 SW-02 5/26/23 <0.03 0.0256 <0.005 <0.01 <0.025 <0.0002 <0.04 <0.01 65.2 164 SW-03 --- --- --- --- --- --- 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 Standard h = hardness dependent dissolved metal standard H - Out of holding time E - Quantitation of compound exceeded calibration range DRAFT Swift Creek Tables 2023 05 SB.xlsx/Table 3-Event Data 2023-5 TABLE 4 GROUNDWATER AND SURFACE WATER FIELD PARAMETER RESULTS SWIFT CREEK STRUCTURAL FILL - CCB0057 BATTLEBORO, NORTH CAROLINA Page 4of4 Sample Location / ID Date a = CD_0 3 n Q a n v 3' m V 3° s a N < 3 s C LI v ° CD x O m x v Q 9 0 p' < p O n 3,< o cQ < v Q NC 2L Groundwater Standard 6.5 - 8.5 NE NE NE NE NE NC 213 Surface Water Standard 6.0 - 9.0 NE NE 50 NE >5.0 GROUNDWATER MONITORING WELLS MW-is 5/26/23 6.2 17.9 6,298 9.4 -9.5 0.61 MW-1D 5/26/23 6.9 19.8 1,460 1.0 -50 0.32 MW-2S 5/26/23 7.0 18.2 382 8.1 -147 0.04 MW-2D 5/26/23 7.3 17.1 529 3.9 -26.9 0.09 MW-3 5/26/23 5.7 18.2 1,226 9.1 96.8 0.22 MW-4 5/26/23 6.4 17.2 413 62.1 57.0 0.36 MW-5RS 5/25/23 7.2 20.0 296 9.9 8.7 2.63 MW-5RD 5/25/23 6.8 19.9 402 3.0 50.2 0.04 MW-6 5/26/23 3.8 15.8 9,422 4.0 227 0.31 MW-7 5/26/23 3.8 17.8 1,540 10.6 209 7.36 MW-8 5/26/23 4.0 17.0 1,234 75.9 244 0.03 SURFACE WATER SW-01 5/25/23 7.3 19.6 105 15.5 33 6.86 SW-02 5/26/23 6.5 21.4 186 18.1 25 2.81 SW-03 --- --- --- --- --- NE - Not established Bold value outside of pH standard range pmhos/cm -micromhos per centimeter NTU - Nephelometric Turbidity unit my - millivolt mg/L - milligram per liter n/a - not applicable DRAFT Swift Creek Tables 2023 05 SB.xlsx/Table 4-Field Parameters2022-10 WATER QUALITY MONITORING AND CORRECTIVE ACTION SUMMARY EFFECTIVENESS REPORT —MAY 2023 Battleboro, Nash County Figures Figure 1 Site Location Map Figure 2 Site Map and Monitoring Well Locations Figure 3 Shallow Groundwater Potentiometric Map — May 2023 Figure 4 Groundwater Analytical Sample Results —May 2023 Figure 5 Groundwater Analytical Sample Results —Sulfate —Surf icial Aquifer Figure 6 Hydrogeologic Profile A -A' Figure 7 Sulfate Concentrations over Time www.erm.com Version: 1.0 Project No.: 0397281 Client: ReUse Technology November 6, 2023 Page 11 E N, E E A t jr J V U 100 -d1- -46. � Li o lf -NP- '4' .7 —b- -d� 49- -d� T TT do. '0' Z' -0- � A� D r T!— -d� 4. -do-- E 2 7 -9b, AP .—Pope t too . . d bL Ok % it E- T V1 0 2,000 1100009�� Feet lip Lj 1 ------ Legend N Figure 1 Site Site Location Map 0 2,000 ReUse Technology, Inc. Swift Creek CCB Structural Fill - CCB0057 LD Feet Environmental Resources Management Environmental Nash County, North Carolina www.erm.com 1:24,000 1 inch 2,000 feet ERM Source: Copyright:© 2013 National Geoqral)hic Society, i-cubed Coordinate System: NAD 1983 StatePlane North Carolina FIPS 3200 Feet C h\a"' ,s BMW=1D� MW-is MW-2D _0 S MW-7 �p MW-8 MW-6 r 0 '.. CAI 1:2,400 1 inch = 200 feet m 0 100 200 E a Feet 0 J Legend Notes Figure 2 Shallow Monitoring Well site CCB -Coal Combustion By -Products Site Map and Monitoring Well Locations '. Abandoned Shallow Monitoring Well CCB Structural Fill Boundary Reuse Technology, Inc. Deep Monitoring Well Topographic Contour (1-ft intervals) Swift Creek CCB Structural Fill - CCB0057 Battleboro, Nash County, North Carolina n Abandoned Deep Monitoring Well Wetland n 0 Surface Water Monitoring Location Freshwater Pond Environmental Resources Management n0 Riverine www.erm.com ERM Source: Sources: Esri, HERE, Garmin, Intermap, increment P Corp., GEBCO, USGS, FAO, NPS, NRCAN, GeoBase, IGN, Kadaster NL, Ordnance Survev, Esri Japan, METI, Esri China (Hong Konq), (c) OpenStreetMap contributors, and the GIS User Community Coordinate Svstem: NAD 1983 StatePlane North Carolina FPS 3200 Feet Esri, Maxar, Earthstar Geographics, IGN, and the GIS User Community 14 f SW-1 MW-5S MW-5D MW-05RS 90.86 MW-05RD MO�%-O6 907 -0 MW-01 D - 90.78* MW-02D MVV-02S 90.61 n, SW-2 .94 MW-08 /-990.or 1:1,680 1 inch = 140 feet m 0 70 140 m SW-3 al I 0 �LR Legend Figure 3 o Shallow Monitoring Well � Site Potentiometric Surface Contour Shallow Groundwater Potentiometric Map '. Abandoned Shallow Monitoring Well CCB Structural Fill Boundary — — Inferred Potentionmetric Surface Contour May 2023 Reuse Technology, Inc. '- Deep Monitoring Well Topographic Contour (1-ft intervals) Apparent Groundwater Flow Direction Swift Creek CCB Structural Fill - CCB0057 i Abandoned Deep Monitoring Well ��� Wetland Groundwater elevation measurements collected 26 May 2023. BattlebOrO, Nash County, North Car ling Y 0 Surface Water Monitoring Location Freshwater Pond 92.00 - Groundwater Elevation in Shallow Monitoring Well 93.82* - Groundwater Elevation in Deep Monitoring Well (not contoured) Environmental Resources Management n EA Riverine Elevations in feet above mean sea level www,erm.com ERM CCB - Coal Combustion By -Products Source: Sources: Esri, HERE, Garmin, Intermap, increment P Corp., GEBCO, USGS, FAO, NPS, NRCAN, GeoBase, IGN, Kadaster NL, Ordnance Survev, Esri Japan, METI, Esri China (Hong Konq), (c) OpenStreetMap contributors, and the GIS User Community Coordinate Svstem: NAD 1983 StatePlane North Carolina FPS 3200 Feet e: Esri, Maxar, Earthstar Geographics, IGN, and the GIS User Community n r / MW-5S MW MW-4 None Exceed SW-01 None Exceed 1I1:1,800 1 inch = 150 feet 0 75 150 Ell I Feet MW-3 Barium 0.038 Sulfate 240 TDS 830 MW-is Barium 0.23 Sulfate 430 TDS 6,20' MW-ID Barium 0.59 Sulfate 15 TDS 780 SW-02 None Exceed MW-5RD None Exceed l' MW-2D None Exceed MW-2S None Exceed - MW-511S None Exceed a MW-6 Arsenic 0.055 Barium 0.075 Lead 0.052 Sulfate 600 TDS 5,800 a `mod a o d !ir ' MW-7 Arsenic 0.080 Barium 0.092 Lead 0.16 Sulfate 670 TDS 8,000 i MW-8 Not Sampled SW-03 None Exceed 0 Legend Figure 4 LD Shallow Monitoring Well 0 site Groundwater Analytical Sample Results - Constituents Exceeding Abandoned Shallow Monitoring Well CCB Structural Fill Boundary 2L Groundwater Standards — May 2023 Notes: Reuse Technology, Inc. Deep Monitoring Well Topographic Contour (1-ft intervals) Groundwater samples collected 25/26 May 2023. Swift Creek CCB Structural FIII - CCB0057 Abandoned Deep Monitoring Well ��� Wetland 430 - Groundwater sample in e concentration n monitoring wellBattleboro, Nash County, North Car ling i 0 Surface Water Monitoring Location Freshwater Pond Concentrations in milligrams per liter (mg/L) Only Concentrations that exceed applicable regulatory standards are shown EnvironmentalResourco=:gemenc n 0 Riverine CCB -Coal Combustion By -Products www.erm.com ERM Source: Sources: Esri, HERE, Garmin, Intermap, increment P Corp., GEBCO, USGS, FAO, NPS, NRCAN, GeoBase, IGN, Kadaster NL, Ordnance Survev, Esri Japan, METI, Esri China (Hong Konq), (c) OpenStreetMap contributors, and the GIS User Community Coordinate Svstem: NAD 1983 StatePlane North Carolina FPS 3200 Feet rce: Esri, Maxar, Earthstar Geographics, IGN, and the GIS User Community Source: Esri, Maxar, Earthstar Geographics, IGN, and the GIS User Community Notes: Vertical Exaggeration = 10:1 1 inch = 150 feet s A Isn 140 130 120 80 70 60 (92.00) Groundwater Elevation 622 Sulfate Concentration (mg/L) Groundwater Elevation A (May 2023) Well Details 150 _ Casing F=� Screen 140 Subsurface Details Existing Clay Layer from Boring Logs (Alluvial) 130 120 110 100 90 80 MW-5S A cpl %MW-4 v iD\A/ 4 MW-2S 0 325 650 Feet 70 60 50 I 1 50 0 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 Distance (ft) , Maxar, W ih Figure 6 Hydrogeologic Profile A -A' ReUse Technology, Inc. Swift Creek CCB Structural Fill - CCB0057 Battleboro, Nash County, North Carolina Environmental Resources Management www.erm.com ERM Coordinate System: NAD 1983 StatePlane North Carolina FIPS 3200 Feet FIGURE 7 - SULFATE CONCENTRATIONS OVER TIME SWIFT CREEK CCB FILL SITE BATTLEBORO, NASH COUNTY, NORTH CAROLINA 800 700 600 500 400 - v 300 200 100 0 Off` Oh 00 01 -A, y4' ti0 ti0 ly tL �'' at' at at' at' at' at' at' at' at' at at at at' at' at' at' at' at' at' at Sulfate • • • • • • Sulfate Concentration Trend 1200 1000 800 600 400 200 0 Oat 1200 1000 800 J h0 600 v 3 400 N 200 0 Oat/ N. i fat fat fat fat fat fat fat fat fat fat fat fat fat fat fat fat fat fat ♦Sulfate • • • • • • Sulfate Concentration Trend M W-6 Ift®AffilkiwA 01 NA ti� ti0 fO atatat� at atatat� at atatat atatat� at atatat� Series • • • • • • Sulfate Concentration Trend FIGURE 7 - SULFATE CONCENTRATIONS OVER TIME SWIFT CREEK CCB FILL SITE BATTLEBORO, NASH COUNTY, NORTH CAROLINA 1000 900 800 700 600 ao 500 v 400 300 - 200 100 0 at' at' at at at at' at' at' at' at' at at at at' at' at' at' at at tSulfate • • • • • • Sulfate Concentration Trend M W-8 1200 1000 soo £ 600 y 400 i 200 0 o� ow o° do titi titi ti'' ti� tih ;�o ti� tiw ;�° ti° titi titi fat' fat' fat' Oat' fat' fat' mat' fat' fat' Iat Iat Oat Oat Oat Oat fat tSuIfate • • • • • • Sulfate Concentration Trend WATER QUALITY MONITORING AND CORRECTIVE ACTION EFFECTIVENESS REPORT —MAY 2023 APPENDIX A HISTORICAL GROUNDWATER AND SURFACE WATER RESULTS May 2023 www.erm.com Version: 1.0 Project No.: 0397281 Client: ReUse Technology APPENDIX Al GROUNDWATER ANALYTICAL RESULTS SUMMARY SWIFT CREEK STRUCTURAL FILL - CCB0057 BATTLEBORO, NORTH CAROLINA Page 1 of 13 Sample Location / ID Date D N W °' �. C� n 3 �. 3 n S o 3 O C' v 3 r � n m C cn � C' 3 < m cn N m o N ( NO CD Q cn -o 2 CD N 3 �"� -o m o N m c' C S, m 30 S a o c � n Z s v CD 70 O CD X v o o 0 9 --^. < 0 Cn O n O vCD NC 2L Ground Water Standard (mg/1) 0.01 0.7 0.002 0.01 0.015 0.001 0.02 0.02 250 500 6.5 - 8.5 NE NE NE NE NE Jul-04 0.028 0.19 <0.001 <0.01 0.068 <0.01 <0.01 490 MW-is Dec-05 0.02 0.17 <0.001 <0.01 0.042 <0.01 <0.01 608 Oct-06 0.012 0.472 <0.001 <0.01 0.052 0.00064 <0.01 <0.01 740 May-07 <0.01 0.458 <0.001 <0.01 <0.010 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 0.022 <0.01 160 Jun-10 0.012 0.691 0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 280 Dec-10 <0.01 0.599 0.003 <0.01 <0.010 <0.0002 <0.01 <0.01 400 Jun-11 <0.10 0.475 <0.01 <0.10 <0.10 <0.00028 <0.10 <0.10 590 Dec-11 <0.050 0.422 <0.005 <0.050 <0.050 <0.0002 <0.050 <0.050 170 Jun-12 <0.01 0.419 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 150 Dec-12 0.018 0.567 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 180 Jun-13 <0.01 0.174 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 75 Dec-13 <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 -- -- -- -- - Nov-21 <0.015 <0.025 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 380 6,800 5.8 20.2 10,278 4.5 -27 0.31 Duplicate (FD-01) Nov-21 <0.015 0.27 <0.005 <0.01 0.031 <0.0002 <0.02 <0.01 410 7,000 -- -- -- -- -- Mar-22 <0.015 0.19 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 500 5,100 5.8 15.4 7,670.0 8.2 -7.1 0.0 Duplicate (FD-01) Mar-22 <0.015 0.19 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 510 5,400 - -- -- -- Oct-22 <0.015 0.26 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 370 7,500 5.6 16.9 13,200.0 3.2 -54.0 0.3 Duplicate (FD-01) Oct-22 <0.015 0.27 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 340 6,900 -- -- -- -- May-23 <0.03 0.104 <0.01 <0.01 <0.025 <0.0002 <0.04 <0.01 622 4,320 6.2 17.9 6,298 9.4 -9.5 0.61 Duplicate (FD-01) May-23 <0.03 0.111 <0.01 <0.01 <0.025 <0.0002 <0.04 <0.01 1 6541 4,420 - - DRAFT Swift Creek Tables 2023 05 SB.xlsx/Table A1-Historic Groundwater APPENDIX Al GROUNDWATER ANALYTICAL RESULTS SUMMARY SWIFT CREEK STRUCTURAL FILL - CCB0057 BATTLEBORO, NORTH CAROLINA Page 2 of 13 o 0 N CD N 3 Cn O C� n cn ( 30 CD 70 O n D W n S o m � cn NO �"� -o m o S a o c Z CD X v o o O Sample N °' �. 3 �. O 3 r � C N CD Q N m C � n s 0 9 --^. Location / ID Date 3 C' v 3 n C' 3 < m m cn -o 2 c' S, m v < vCD 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 <0.01 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 Nov-21 <0.015 0.027 <0.005 <0.01 <0.010 <0.0002 <0.02 <0.01 16 720 7.0 20.4 1,205 1 -41 0.97 Mar-22 <0.015 0.63 <0.005 <0.01 <0.010 <0.0002 <0.02 <0.01 14 710 7.0 17.5 1,260 5 76 1.05 Oct-22 <0.015 0.63 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 14 810 7.2 18.4 1,350 5 -45 1.42 May-23 <0.03 0.6 <0.01 I <0.01 <0.025 <0.0002 <0.04 <0.01 17.6 880 6.91 19.8 1,460 1 -50 0.32 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 Dec-13 <0.01 0.199 <0.001 I <0.01 I <0.01 1 <0.0002 <0.01 I <0.01 1 <5 DRAFT Swift Creek Tables 2023 05 SB.xlsx/Table A1-Historic Groundwater APPENDIX Al GROUNDWATER ANALYTICAL RESULTS SUMMARY SWIFT CREEK STRUCTURAL FILL - CCB0057 BATTLEBORO, NORTH CAROLINA Page 3 of 13 o 0 N CD N 3 Cn O C� n cn ( 30 CD 70 O n D W n S o m � cn NO �"� -o m o S a o c Z CD X v o o O Sample N °' �. 3 �. O 3 r � C N CD Q N m C � n s 0 9 --^. Location / ID Date 3 C' v 3 n C' 3 < m m cn -o 2 c' S, m v < vCD 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-14 <0.01 0.165 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 <5 MW-2S 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 Nov-21 <0.015 0.20 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 <1.0 360 6.9 18.8 684 25 -106 0.30 Mar-22 <0.015 0.20 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 <1.0 320 7.0 17.0 503 4 -83 0.00 Oct-22 <0.015 0.29 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 <2.0 400 7.6 17.5 402 8 -2 0.00 May-23 <0.03 0.114 <0.01 <0.01 <0.025 <0.0002 <0.04 <0.01 <1.0 211 7.0 18.2 382 8 -147 0.04 MW-21D 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 Nov-21 <0.015 0.07 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 1.1 320 7.2 18.3 478 3 -91 0.34 Mar-22 <0.015 0.29 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 1 300 7.2 19.1 499 10 -141 0.51 Oct-22 <0.015 0.36 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 1.2 H 300 7.9 16.3 347 1 33 0.00 May-23 1 <0.031 0.271 <0.01 I <0.01 1 <0.025 <0.0002 <0.04 <0.01 1 1.81 3171 7.31 17.1 5291 4 -271 0.09 DRAFT Swift Creek Tables 2023 05 SB.xlsx/Table A1-Historic Groundwater APPENDIX Al GROUNDWATER ANALYTICAL RESULTS SUMMARY SWIFT CREEK STRUCTURAL FILL - CCB0057 BATTLEBORO, NORTH CAROLINA Page 4 of 13 Sample Location / ID Date D N W °' �. C� n 3 �. 3 n S o 3 O C' v 3 r � n m C cn � C' 3 < m cn N m o N ( NO CD Q cn -o 2 CD N 3 �"� -o m o N m c' C S, m 30 S a o c � n Z s v CD 70 O CD X v o o 0 9 --^. < 0 Cn O n O vCD NC 2L Ground Water Standard (mg/1) 0.01 0.7 0.002 0.01 0.015 0.001 0.02 0.02 250 500 6.5 - 8.5 NE NE NE NE NE Dec-05 <0.01 <0.0002 <0.01 <0.01 334 MW-3 Oct-06 <0.01 0.192 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 580 May-07 <0.01 0.342 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 570 Nov-07 <0.01 0.133 <0.001 <0.01 0.036 <0.0002 <0.01 <0.01 380 Jun-08 <0.01 0.145 <0.001 <0.01 0.022 <0.0002 <0.01 <0.01 370 Jan-09 <0.01 0.144 <0.001 <0.01 0.013 <0.0002 <0.01 <0.01 550 Jun-09 <0.01 0.202 <0.001 <0.01 0.081 <0.0002 <0.01 <0.01 570 Dec-09 0.012 0.192 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 710 Jun-10 0.011 0.094 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 840 Dec-10 <0.01 0.125 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 690 Jun-11 <0.10 0.119 <0.01 <0.10 <0.10 <0.0002 <0.10 <0.10 790 Dec-11 <0.01 0.234 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 410 Jun-12 <0.01 0.125 <0.001 <0.01 <0.01 <0.0002 <0.05 <0.01 1,000 Dec-12 0.013 0.136 <0.001 <0.01 <0.01 <0.0002 0.011 <0.01 910 Jun-13 <0.10d 0.201 <0.01 d <0.1 d <0.1 d <0.0002 <0.1 d <0.1 d 950 Dec-13 <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 Nov-21 <0.015 <0.025 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 810 2,700 5.4 19.5 3,831 6.0 48 0.39 Mar-22 <0.015 0.038 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 280 850 5.7 15.7 1,287 3.4 -8 0.00 Oct-22 <0.015 0.055 <0.005 <0.01 0.042 <0.0002 <0.02 <0.01 630 1,800 5.8 16.8 2,340 6.1 113 0.00 May-23 <0.03 0.0398 <0.01 I <0.01 0.011 <0.0002 <0.04 <0.01 1 251 890 5.7 18.2 1,226 9 97 0.22 DRAFT Swift Creek Tables 2023 05 SB.xlsx/Table A1-Historic Groundwater APPENDIX Al GROUNDWATER ANALYTICAL RESULTS SUMMARY SWIFT CREEK STRUCTURAL FILL - CCB0057 BATTLEBORO, NORTH CAROLINA Page 5 of 13 Sample Location / ID Date D N W °' �. C� n 3 �. 3 n S o 3 O C' v 3 r � v n m C cn � C' 3 < m cn N m o N ( NO CD Q cn -o 2 CD N 3 �"� -o m o N m c' C u m 30 S a o c � n Z s v CD 70 O CD X v o o 0 9 --^. < 0 Cn O n O vCD 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-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 <0.01P <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 Dec-13 <0.01 0.167 0.006 <0.01 <0.010 <0.000^ <0.01 <0.01 130 Jul-14 <0.01 0.085 0.0017 <0.01 <0.010 0.00101 <0.01 <0.01 190 Dec-14 <0.01 0.071 0.0017 <0.01 <0.010 0.00111 <0.01 <0.01 260 Jun-18 <0.01 0.041 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 66 450 6.4 25.1 72 7 56 0.28 Jan-19 <0.01 0.044 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 46 320 6.7 9.3 499 13 52 0.83 Jun-19 <0.01 0.052 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 30 310 6.9 22.0 553 7 -91 0.47 Mar-20 <0.01 0.054 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 37 <25 6.5 16.0 455 5 -51 0.42 Nov-20 <0.01 0.061 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 29 250 6.3 43.0 442 10 43 0.52 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 Nov-21 0.035 0.025 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 25 230 6.4 21.9 320 6 14 0.29 Mar-22 <0.015 0.064 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 17 200 6.4 15.0 352 4 97 0.00 Oct-22 <0.015 0.086 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 20 250 6.4 20.6 381 9 -103 0.00 May-23 1 <0.031 0.0657 <0.01 I <0.01 <0.025 <0.0002 <0.04 <0.01 17.4 2661 6.41 17.21 4131 621 571 0.36 DRAFT Swift Creek Tables 2023 05 SB.xlsx/Table A1-Historic Groundwater APPENDIX Al GROUNDWATER ANALYTICAL RESULTS SUMMARY SWIFT CREEK STRUCTURAL FILL - CCB0057 BATTLEBORO, NORTH CAROLINA Page 6 of 13 Sample Location / ID Date D N W °' �. C� n 3 �. 3 n S o 3 O C' v 3 r � n m C cn � C' 3 < m cn N m o N ( NO CD Q cn -o 2 CD N 3 �"� -o m o N m c' C S, m 30 S a o c � n Z s v CD 70 O CD X v o o 0 9 --^. < 0 Cn O n O vCD NC 2L Ground Water Standard (mg/1) 0.01 0.7 0.002 0.01 0.015 0.001 0.02 0.02 250 500 6.5 - 8.5 NE NE NE NE NE Dec-05 <0.01 0.45 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 6.1 MW-5S Oct-06 <0.01 0.121 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 7 May-07 <0.01 0.218 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 4.7 Oct-07 <0.01 0.278 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 4.9 Jun-08 <0.01 0.046 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 8.7 Jan-09 <0.01 0.051 NR NR <0.010 <0.0002 NR NR 10 Jun-09 <0.01 0.058 NR NR <0.010 <0.0002 NR NR 13 Dec-09 <0.01 0.056 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 17 Jun-10 <0.01 0.057 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 12 Dec-10 <0.01 0.102 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 14 Jun-11 <0.01 0.064 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 17 Dec-11 <0.01 0.087 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 21 Jun-12 <0.01 0.095 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 22 Dec-12 <0.01 0.131 <0.001 <0.01 <0.010 <0.0002 <0.01 <0.01 25 Jun-13 <0.01 0.025 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 22 Dec-13 <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 DRAFT Swift Creek Tables 2023 05 SB.xlsx/Table A1-Historic Groundwater APPENDIX Al GROUNDWATER ANALYTICAL RESULTS SUMMARY SWIFT CREEK STRUCTURAL FILL - CCB0057 BATTLEBORO, NORTH CAROLINA Page 7 of 13 o 0 N CD N 3 Cn O C� n cn ( 30 CD 70 O n D W n S o m � cn NO �"� -o m o S a o c Z CD X v o o O Sample N °' �. 3 �. O 3 r � C N CD Q N m C � n s 0 9 --^. Location / ID Date 3 C' v 3 n C' 3 < m m cn -o 2 c' S, m v < vCD 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-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 Nov-21 <0.015 <0.025 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 2.8 300 7.0 22.8 450 3 24 0.47 Mar-22 <0.015 0.10 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 4.7 220 6.7 16.5 364 6 124 0.54 Oct-22 <0.015 0.08 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 150 6.0 22.1 244 0 213 0.35 May-23 <0.03 0.084 <0.01 <0.01 <0.025 <0.0002 <0.04 <0.01 1 3.2 249 7.2 20.01 296 10 9 2.63 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-51RD 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 Nov-21 <0.01 <0.025 <0.005 <0.01 <0.01 <0.0002 <0.01 <0.01 6.0 190 7.4 21.6 321 1 -45 1.05 Mar-22 <0.015 0.18 <0.005 <0.01 <0.01 <0.0002 <0.01 <0.01 5.2 220 7.4 17.7 242 8 -2 2.98 Oct-22 <0.015 0.16 <0.005 <0.01 <0.01 <0.0002 <0.01 <0.01 7.7 H 170 7.0 20.4 298 0 41 0.40 May-23 1 <0.031 0.143 <0.01 I <0.01 1 <0.025 <0.0002 <0.04 <0.01 1 8.2 1831 6.81 19.91 4021 3 50 0.04 DRAFT Swift Creek Tables 2023 05 SB.xlsx/Table A1-Historic Groundwater APPENDIX Al GROUNDWATER ANALYTICAL RESULTS SUMMARY SWIFT CREEK STRUCTURAL FILL - CCB0057 BATTLEBORO, NORTH CAROLINA Page 8 of 13 Sample Location / ID Date D N W °' �. C� n 3 �. 3 n S o 3 O C' v 3 r � n m C cn � C' 3 < m cn N m o N ( NO CD Q cn -o 2 CD N 3 �"� -o m o N m c' C S, m 30 S a o c � n Z s v CD 70 O CD X v o o 0 9 --^. < 0 Cn O n O vCD NC 2L Ground Water Standard (mg/1) 0.01 0.7 0.002 0.01 0.015 0.001 0.02 0.02 250 500 6.5 - 8.5 NE NE NE NE NE Dec-05 <0.01 1.3 <0.001 <0.01 0.01 <0.0002 <0.01 <0.01 174 MW-6 Oct-06 <0.01 0.816 <0.001 <0.01 0.013 <0.0002 <0.01 <0.01 510 May-07 <0.01 0.312 <0.001 <0.01 0.032 <0.0002 <0.01 <0.01 220 Nov-07 <0.01 0.12 <0.001 <0.01 0.074 0.00026 <0.01 <0.01 290 Jun-08 <0.01 0.08 <0.001 <0.01 0.054 0.00091 <0.01 <0.01 490 Jan-09 <0.01 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 <0.01 <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 Dec-13 <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 Nov-21 <0.015 <0.025 <0.005 <0.01 <0.0002 <0.02 <0.01 790 5,500 3.7 20.2 9,522 0 231 0.30 Mar-22 0.052 0.083 <0.005 <0.01 0.070 <0.0002 <0.02 <0.01 670 4,900 3.6 14.9 9,348 3 213 0.00 Oct-22 0.058 0.081 <0.005 <0.01 0.100 <0.0002 <0.02 <0.01 650 5,100 3.5 19.8 7,890 0 248 0.00 May-23 0.0461 0.0656 <0.01 <0.01 0.073 <0.0002 <0.200 <0.05 569 6,750 3.8 15.8 9,422 4 227 0.31 DRAFT Swift Creek Tables 2023 05 SB.xlsx/Table A1-Historic Groundwater APPENDIX Al GROUNDWATER ANALYTICAL RESULTS SUMMARY SWIFT CREEK STRUCTURAL FILL - CCB0057 BATTLEBORO, NORTH CAROLINA Page 9 of 13 Sample Location / ID Date D N W °' �. C� n 3 �. 3 n S o 3 O C' v 3 r � n m C cn � C' 3 < m cn N m o N ( NO CD Q cn -o 2 CD N 3 �"� -o m o N m c' C S, m 30 S a o c � n Z s v CD 70 O CD X v o o 0 9 --^. < 0 Cn O n O vCD 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 <0.001 <0.01 0.093 <0.0002 <0.01 <0.01 379 MW-7 Oct-06 0.03 0.059 <0.001 <0.01 0.053 <0.0002 <0.01 <0.01 500 May-07 0.017 <0.001 <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 -U.Uuv< <0.10 <0.10 640 Jun-12 0.059 0.12 <0.005 <0.05 0.27 <0.0002 <0.05 <0.05 580 Dec-12 0.158 <0.01 <0.10 0.397 <0.0002 <0.10 <0.10 700 Jun-13 0.114 <0.01d <0.10d 0.19 <0.0002 <0.10d <0.10d 600 Dec-13 0.07 0.119 <0.05d <0.050d 0.235 <0.0002 <0.050d <0.050d 470 Jun-14 0.078 0.093 <0.002d <0.007d 0.139 <0.0002 <0.025d <0.010d 670 Dec-14 0.167 0.205 <0.05d <0.050d 0.553 <0.0002 <0.050d <0.050d 710 Jun-18 0.041 0.1 0.0074 <0.02 0.089 <0.0002 <0.02 <0.01 770 9,400 3.8 23.0 13,584 2 243 1.37 Jan-19 0.089 0.097 <0.01 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 0.160 <0.0002 <0.02 <0.01 670 8,000 3.8 16.0 12,734 8 186 0.25 Nov-21 0.090 0.13 <0.005 <0.01 0.270 <0.0002 <0.02 <0.01 700 10,000 3.7 20.9 15,392 4 205 0.27 Mar-22 0.081 0.13 <0.005 <0.01 0.200 <0.0002 <0.02 <0.01 720 8,300 3.6 14.8 14,887 5 311 0.07 Oct-22 0.077 0.13 0.0052 <0.01 0.220 <0.0002 <0.02 <0.01 680 9,600 3.5 19.4 16,500 0 255 0.08 May-23 0.0637 0.0874 <0.01 <0.01 0.185 <0.0002 <0.200 <0.05 565 10,700 3.8 17.8 1,540 11 209 7.36 DRAFT Swift Creek Tables 2023 05 SB.xlsx/Table A1-Historic Groundwater APPENDIX Al GROUNDWATER ANALYTICAL RESULTS SUMMARY SWIFT CREEK STRUCTURAL FILL - CCB0057 BATTLEBORO, NORTH CAROLINA Page 10 of 13 o 0 N CD Cn O C� n ( N 3 30 CD 70 O n D W n S o m cn � cn NO �"� -o m o S a o c Z CD X v o o O Sample N °' �. 3 O 3 r � C CD N m � n s 0 9 --^. Location / ID Date �. 3 C' v 3 v n C' 3 < m N m Q cn -o 2 c' C u m v < vCD 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 0.0002 <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 <0.100 410.0 Dec-11 <u..i uu 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 Dec-13 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 hazard Nov-21 0.07 0.089 <0.005 <0.01 0.240 <0.0002 <0.02 <0.01 610 7,300 3.9 19.5 12,230 9 235 0.29 Mar-22 0.071 0.11 <0.005 <0.01 0.110 <0.0002 <0.02 <0.01 580 6,400 3.8 15.2 11,810 4 261 0.00 Oct-20 0.055 0.1 <0.005 <0.01 0.180 <0.0002 <0.02 <0.01 650 6,200 3.7 18.4 10,200 4 2 0.00 May-23 0.0598 0.106 <0.01 0.0043J 0.148 <0.0002 <0.400 <0.05 541 8,400 4.0 17.0 1,234 76 244 0.03 All concentrations in milligrams per liter (mg/L) unless otherwise noted NE - Not established -- - Not sampled Bold with gray background indicates exceedance of NC 2L Groundwater Standard DRAFT Swift Creek Tables 2023 05 SB.xlsx/Table A1-Historic Groundwater I_1 „=1 L1 101►:I_�+% SURFACE WATER ANALYTICAL RESULTS SUMMARY SWIFT CREEK STRUCTURAL FILL - CCB0057 BATTLEBORO, NORTH CAROLINA Page 11 of 13 O o a � x a o N. o o C@ � � < D 00 n o m m U) 0-0 m c N v Q O Sample 3 0 3. r S U? C o m y v Z s 1< Location / ID Date c' 3 c 3 c v 3 m Q c c' 3 < m v m Q 6 = E v ci C a V G� co cn V� 0 ,� NC 2B Surface Water Standard - Class C (ug/1) 0.15 1 NE 1 0.002 h 0.05 h 0.025 10.000012 1 0.005 1 0.00006 1 NE I NE 1 6.0 - 9.0 1 NE I NE 1 50 1 NE 1 >5.0 04/03/03 <0.01 <0.10 <0.001 <0.01 <0.005 <0.0002 <0.01 <0.01 12 SW-01 06/22/04 <0.01 <0.10 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 <2.0 12/01 /05 <0.01 <0.10 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 6.3 10/06/06 <0.01 <0.10 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 <5 Surface Water - Upstream 05/04/07 <0.01 <0.10 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 6.6 10/22/07 <0.01 <0.10 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 3.8 06/18/08 <0.01 <0.10 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 2.5 01/14/09 <0.01 <0.10 NR NR <0.01 <0.0002 NR NR 5.6 06/24/09 <0.01 0.03 NR NR <0.01 <0.0002 NR NR <5 12/16/09 <0.01 0.048 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 6.2 06/30/10 <0.01 0.032 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 <5 12/14/10 <0.01 0.025 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 <5 06/27/11 <0.01 0.041 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 <5 12/19/11 <0.01 0.025 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 <5 12/18/12 <0.01 0.028 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 <5 06/25/13 <0.01 0.04 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 <5 04/13/12 <0.01 0.025 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 5.3 06/27/14 <0.01 0.03 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 <5 12/17/14 <0.01 0.027 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 <5 06/28/18 <0.015 0.031 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 <1 73 6.95 28.46 101 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 11/01/21 <0.015 0.027 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 2.3 75 7.32 14.40 77 A 35.4 8.2 03/22/22 <0.015 0.029 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 2.6 55 7.60 16.00 660 NM 102.0 9.0 10/20/22 <0.015 0.027 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 1.8 110 5.58 12.19 233 2.2 125.0 7.0 5/25/23 1 <0.031 0.038 <0.01 I <0.01 1 <0.025 <0.0002 <0.04 <0.01 1 6.01 761 7.31 19.61 1051 15.51 331 6.86 DRAFT Swift Creek Tables 2023 05 SB.xlsx/Table A2-Historic SurfaceWater I_1 „=1 L1 101►:I_�+% SURFACE WATER ANALYTICAL RESULTS SUMMARY SWIFT CREEK STRUCTURAL FILL - CCB0057 BATTLEBORO, NORTH CAROLINA Page 12 of 13 O o Q x iz v o N. �� �= o o �� < D W n o m Cl) m cn � CDo c CD CD a O Sample N ,' 3 0 3 r Cn o C m N Z n 3 x Location / ID Date 0 c' 3 c' 3 c' CDc Q c 3 < v a 2 c c m < c �� G= n 7-3 1m NC 2B Surface Water Standard - Class C (ug/1) 0.15 NE 0.002 h 0.05 h 0.025 1 0.000012 0.005 1 0.00006 1 NE I NE 1 6.0 - 9.0 1 NE I NE 1 50 1 NE 1 >5.0 04/03/03 <0.01 <0.10 <0.001 <0.01 <0.005 <0.0002 <0.01 <0.01 12 SW-02 06/22/04 <0.01 <0.10 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 <2.0 12/01 /05 <0.01 <0.10 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 6.3 10/06/06 <0.01 0.09 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 <5 Surface Water - Downstream 05/04/07 <0.01 <0.10 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 6.6 10/22/07 DRY <0.0002 <0.01 <0.01 3.8 08/07/08 <0.01 <0.10 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 2.5 01/14/09 <0.01 <0.10 NR NR <0.01 <0.0002 NR NR 5.6 06/24/09 <0.01 0.088 NR NR <0.01 <0.0002 NR NR <5 12/16/09 <0.01 0.025 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 6.2 06/30/10 DRY <0.0002 <0.01 <0.01 <5 12/14/10 <0.01 0.034 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 <5 06/27/11 DRY <0.0002 <0.01 <0.01 <5 12/19/11 <0.01 0.027 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 <5 12/18/12 <0.01 0.031 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 <5 06/25/13 <0.01 0.037 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 <5 04/13/12 <0.01 0.023 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 5.3 06/27/14 <0.01 0.038 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 <5 12/17/14 <0.01 0.027 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 <5 06/28/18 <0.015 0.089 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 <1 130 6.98 29.68 369 90.0 -0.4 0.7 01/21/19 <0.01 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 11/09/20 <0.015 <0.025 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 2.5 67 6.8 18.3 325.3 11.4 63.4 3.78 11/01/21 <0.015 0.048 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 5.3 110 6.7 17.1 184.5 6.98 -8.7 2.48 03/22/22 <0.015 <0.025 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 2.5 64 6.7 19.3 70 15 100 11.16 03/22/22 <0.015 0.04 <0.005 <0.01 <0.01 1 <0.0002 <0.02 <0.01 1.6 58 7.1 10.8 59 0.8 37 2.83 5/26/23 1 65.2 1641 6.51 21.4 1861 18.1 251 2.81 1 <0.031 0.0256 <0.005 <0.01 <0.025 <0.0002 <0.04 <0.01 DRAFT Swift Creek Tables 2023 05 SB.xlsx/Table A2-Historic SurfaceWater I_1 „=1 L1 101►:I_�+% SURFACE WATER ANALYTICAL RESULTS SUMMARY SWIFT CREEK STRUCTURAL FILL - CCB0057 BATTLEBORO, NORTH CAROLINA Page 13 of 13 O o 'a CD x CL 0 N. N �� o D _ oo. ? < fl D W c� n 3 o cn m U) C m 3 o - c D m a O Sample m °' 3 0 3. r B - c o v Z 3 xCDL Location / ID Date 3 3 3 m Q 3 < m m m a 2 c m " < c 3 ° D c�i' 7 NC 2B Surface Water Standard - Class C (ug/I) 0.15 1 NE 1 0.002 " 0.05 " 1 0.025 10.000012 1 0.005 1 0.00006 1 NE I NE 1 6.0 - 9.0 NE NE 50 NE >5.0 05/04/07 <0.01 <0.10 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 2.4 SW-03 10/22/07 DRY 06/18/08 <0.01 0.089 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 3.3 01/14/09 <0.01 <0.10 NR NR <0.01 <0.0002 NR NR 20 Surface Water - Downstream 06/24/09 <0.01 0.087 NR NR <0.01 <0.0002 NR NR <5 12/16/09 <0.01 0.075 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 14 06/30/10 <0.01 0.328 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 47 12/14/10 <0.01 0.074 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 16 06/27/11 DRY 12/19/11 <0.01 0.065 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 8 12/18/12 <0.01 0.067 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 6.5 06/25/13 <0.01 0.087 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 7.4 04/13/12 <0.01 0.051 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 23 06/27/14 <0.01 0.038 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 <5 12/17/14 <0.01 0.08 <0.001 <0.01 <0.01 <0.0002 <0.01 <0.01 9.9 06/28/18 <0.015 0.032 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 <1 76 NM NM NM NM NM NM 01/21/19 <0.015 0.03 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 31 160 5.6 6.3 257 14.5 138 13.1 06/17/19 <0.015 0.025 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 <1 99 5.7 26.4 235.5 19.7 48.4 5.06 03/09/20 <0.015 0.035 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 9.8 94 6.3 10.5 265.4 6.98 55.1 8.9 11/09/20 <0.015 <0.025 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 2.5 67 6.8 18.3 325.3 11.4 63.4 3.78 03/25/21 Unable to collect sample due to biological hazard near sampling location 11/01/21 <0.015 0.026 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 9.3 82 6.5 20.7 172.8 7.28 34.6 3.14 03/22/22 1 <0.015 0.036 <0.005 <0.01 <0.01 <0.0002 <0.02 <0.01 1 151 1201 6.51 16.41 811 11.001 69.0 10.83 05/25/23 1 DRY All concentrations in micrograms per liter (ug/L) unless otherwise noted NE - Not established -- - Not sampled NM - Not measured DRAFT Swift Creek Tables 2023 05 SB.xlsx/Table A2-Historic SurfaceWater Bold indicates exceedance of NC 2B Water Quality Standard h = hardness dependent dissolved metal standard WATER QUALITY MONITORING AND CORRECTIVE ACTION EFFECTIVENESS REPORT — MAY 2023 APPENDIX B FIELD DATA SHEETS May 2023 www.erm.com Version: 1.0 Project No.: 0397281 Client: ReUse Technology ERM Bottle Order/Label Sheet Site: Swift Creek ERM Project Number: 0397281 5 ZSZ3 BOTTLE LABEL Water Level Metals (6010) Sulfate (300) TDS (2540C) * M W-OIS-WG-202003 70 X X X MW-OID-WG-202003 X X X MW-02S-WG-202003 X X X MW-02D-WG-202003 X X X MW-03-WG-202003 X X X MW-04-WG-202003 X X X MW-05RS-WG-202003 X X X MW-05RD-WG-202003 ; 2 X X X MW-06-WG-202003 , X X X MW-07-WG-202003 , �' X X X MW-08-WG-202003 �, X X X SW-01-WG-202003 —2 z' X X X SW-02-WG-202003 _ _ 2- 12,19 X X X SW-03-WG-202003 X X X FD-01-WG-202003 X X X -WG-202003 X X X SUM (Bottle Count): 1 16 1 16 1 16 Notes Please include: - 1 trip blank per cooler. - At least 1 CoC per cooler. - I custody seal per cooler. - Prepaid shipping labels, if possible. *Collect FD-01 at MW-01S Key: = Normal sample = Duplicate sample = QAQC sample = Extra set for breakage ERM Field Team Note: add the sample day in dd format to the end of the sample ID (i.e. MW-C WATER MATRIX SAMPLING FIELD DATA FORM r ERM Site Name: Swift Creek ERM Project Number: 0397281 Sample Type: (Monitor Well, DPT, Surface Water, Potable WSW; other) D fkew Sample ID: AW - Q - Zo 2 � Date: & /ZO 2 3 Time Z 15 Sampling Personnel (circle one): <�=—Rda.FarrD Andrew Jaskowiak Weather Conditions (circle one): Sunny, P ly ClRiily, Cloudy, Rain, Other Well Type: Flush Surface Completion, ck U ompletion ��--.. Well Tag Present: 1Fes,) No Well Locked: e , No Lock Present: s, No Well ID info on Tag: No Well Bolted: v Flo Well Cap: XeDNo Well Cap Condition d, Replace, Other: Well Pad Conditio a li, Cracked, Replace, Other: Well Location: 16rasAsphalt, Concrete, Woods, Other: Additional Comments: Total Depth of Well (T.D.): c3i0 Screen Length: 5, (015, 20 Depth to Water (D.T.W): tt) I 'Z Well Diameter: a 4, s, 8 Total Volume Purged: 2-7100mL Casing Type: eel Purge Rate: (0 0 mL/min Sampling Device: tti', Monsoon, Grundfos, Bailer, Other: Tubing Type: Polyethylene Measuring Point: op of Ca.inb other Pump Intake (ft below M.P.): L Color: Odor: Yes, No Time: min Volume Pur ed DTW: feet Temp CC) pH std units SpC uS/cm DO m /L ORP mV Turb NTU Comments: Stabalization Criteria2 (gallons) (see note belOW)3 +/- 3% +/- 0.1 unit +/- 3% +/- 10% +/- 10 mV +/- 10%4 (,O I o .j g vq. 1 1799 U .(0 2 Z 0. - 1ce -8 boo Cl-9 .e) c.1 -Z -� 1 5 -Do 1 00 D- O O I -� 10 9• - ,o f qO U qq I �4' . 30 - j • -- J v 5 (vo q Field Parameters measured with: YSI Official Sampling Date & Time: 5 /Z (, /70 Z j/ I Z 5 S Samples Collected: Analysis Requested: Preservative: Hold Time (days): Lab: Metals 6010D HNO3 28 Pace Analytical Sulfate 300 — 28 Pace Analytical TDS 2540C — 7 Pace Analytical Notes: (1)- Do not measure depth to bottom of well until after purging and sampling to reduce resuspending fines that maybe resting on the well bottom. (2)-Stabilization criteria based on three most recent consecutive measurements. (3)-Total draNdown In well to be less than 0.1 m (0.32 it). Purging rate to be lowered as necessary to keep drawdown below 0.1 m (0.32 ft). (4) +/-10%when turbidity is over 10 NTUs. (5) Well Volume (gal) = 0.041d2h: (6)- DO Is not a slabil¢alion criterion for the "Groundwater sampling" SESD Standard operating Procedure. (7)-ORP is not a stabilization criterion for the "Groundwater sampling" SESD Standard Operating Procedure. WATER MATRIX SAMPLING FIELD DATA FORM N ERM Site Name; Swift Creek ERM Project Number: 0397281 Sample Type: (Monitor Well, DPT, Surface Water, Potable WSW; other) Sample ID: ..0 15 O S US Z Date: 40 ZZv2 Time: 5 Sampling Personnel (circle one): a_Fa Andrew Jaskowiak Weather Conditions (circle one): P� Clou , Cloudy, Rain, Other -'Sunny, Well Type: Flush Surface Completiol5 Stick Up CompQbn Well Tag Present: e No Well Locked: a No Lock Present: )(Z)No Well ID info on Tag: es No Well Bolted: es, No Well Cap: )Q No Well Cap Condition. oa , Replace, Other. Well Pad Condltio . Good, acked, Replace, Other: Well Location: rass sphalt, Concrete, Woods, Other: Additional Comments: Total Depth of Well (T.D.): Screen Length: 5, 1615, 20 Depth to Water (D.T.W): (1) Well Diameter: 2 4, s, 8 Total Volume Purged: Casing Type: V , steel Purge Rate: 100 mUmin Sampling Devic :- Peristaltic, Monsoon, Grundfos, Bailer, Other: Tubing Type: -Polyethylene Measuring Point: Top of casing other: Pump Intake (ft below M.P.): 12, Color: Odor: Yes, No Time: min Volume Purged DTW: feet Temp CC pH std units SPC uS/cm DO m /L ORP mV Turb NTU Comments: Stabalization Criteria2 (gallons) (see note belOW)3 +/_ 3% +/- 0.1 unit +/- 3% +/- 10% +/_ 10 mV +/_ 10%4 I . Ciqt U .(da 51. 6 0Iq I. to, v.5 W( 0 ,o T. 00 17. U .70 C1 15 15.5 (� (0, 3 U D (i. 0 0- -4- 1 4 •v (o. UI 5 .5 -� .5 10 0 0 I So - 5 ffoll p I�• to& Z9 f6 -0-601 Field Parameters measured with: YSI Pro / Official Sampling Date & Time: 5/ l �G�j / l os Samples Collected: Analysis Requested: Preservative: Hold Time (days): Lab: Metals 6010D HNO3 28 Pace Analytical Sulfate 300 — 28 Pace Analytical TDS 2540c — 7 Pace Analytical Notes: (1)- Do not measure depth to bottom of well until after purging and sampling to reduce resuspending times that maybe resting on the Well bottom. (2) -Stabilize.. criteria based on three most recent consecutive measurements. (3) -Total drawdown In well to be less than 0.1 m (0.32 ff). Purging rate to be lowered as necessary to keep drawdown below 0.1 m (0.32 it). (4) +/-10%when turbidity is over 10 NTUs. (5) Well Volume (gal) = 0.041d2h: (6) - DO is not a stabilization criterion for the "Groundwater sampling" SESD Standard Operating Procedure. (7)- ORP Is not a stabilization criterion for the "Groundwater sampling' SESD Standard Operating Procedure. FD- of - (/\-" WATER MATRIX SAMPLING FIELD DATA FORM I.• 1j��, I; . ERM Site Name: Swift Creek ERM Project Number: 0397281 Sample Type: Monit r Well, DPT, Surface Water, Potable WSW; other) i� - a2 Sample ID: `,- Cif w✓ 7OZ 067 z Date: 2-C,- 2-0, Time: 5-1 Sampling Personnel (circle one): Amanda Farr A rew Jask ialc Weather Conditions (circle one): . Sunn , Partly Cloudy, Cloudy, Rain, Other Well Type: Flush surface Completion, _ ck U pletion Well Tag Present: (Y No Well Locked: �Q, No Lock Present• , , No Well ID info on Tag: e No Well Bolted: Yes, o Well Cap: 2.5 Well Cap Con ition•, - oo Replace, Other: Well Pad Conditior�.,Goo racked, Replace, Other: Well Locatio Gra , Asphalt, Concrete, Woods, Other: Additional Comments: Total Depth of Well (T.D.): Screen Length: 5, 0 15. 20 Depth to Water (D.T.W): t1) �' Well Diameter: 4, 6, 8 Total Volume Purged: Casing Type: Pv eel Purge Rate: ' g,g mL/min Sampling Device: "-. eristal • , Monsoon, Grundfos, Bailer, Other: Tubing Type: Polyethylene Measuring Point: t4kf Ca fig other: Pump Intake (ft below M.P.): j Color: Odor: Yes, No Time: min Volume Purged DTW: feet Temp (°C)(Sid pH units SpC uS/cm DO m /L ORP mV Turb NTU Comments: Stabalization Criteria2 (gallons) (see note below)3 +/- 3% +/- 0.1 unit +/- 3% +/- 10% +/- 10 mV +/- 10%4 z K9Z I 1 � � o A4 yZ 1 0 Z l zT 1'7, 10 q 7 n `17,1 -2 H ®f tJ —zG161, Field Parameters measured with: YSI Pro/ Official Sampling Date & Time: I' , Samples Collected: Analysis Requested: Preservative: /Hold Time (days): Lab: Metals 6010D HNO3 28 Pace Analytical Sulfate 300 — 28 Pace Analytical TDS 2540C 7 Pace Analytical Notes: (1) - Do not measure depth to bottom of well until after purging and sampling to reduce resuspending fines that maybe resting on the well bottom. (2)- Stabilization criteria based on three most recent consecuWe measurements. (3) - Total draniovm in arell to be less than 0.1 in (0.32 fit). Purging rate to be lowered as necessary to keep drawdo= below 0.1 m (0.32 n). (4) +/- 10 % vfien turbidity Is over 10 NTUs. (5) Well Volume (gal) = 0.041d2h: (6) - DO Is not a stabilization criterion for the "Groundwater sampling" SESD Standard Operating Procedure. (7) - ORP is not a stabilization criterion for the "Groundwater sampling" SESD Standard Operating Procedure. WATER MATRIX SAMPLING FIELD DATA FORM Site Name: Swift Creek ERM Project Number: 0397281 Sample Type: (Monitor Well, DPT, Surface Water, Potable WSW; other) /I t'� Sample ID: A,— 023 — L-' " 0 2 , — Date: 9 �2-04 Time: I Sampling Personnel (circle one): A anda Farr A drew Jaskowiak Weather Conditions (circle one): Su y, Partly Cloudy, Cloudy; Rain t3tfier Well Type: Flush Surface Completion, ick U Completion Well Tag Present: ; Ye , No Well Locked: e , No Lock Present: e , No Well ID info on Tag: tes, No Well Bolted: Y s, a, Well Cap: , No Well Cap Conditio o , Replace, other: Well Pad Condition: oo , Cracked, Replace, Other: Well Location: , Asphalt, Concrete, Woods, Other: Additional Comments: Total Depth of Well (T.D.): 1 %t ql3 Screen Length: 5, 12, 15, 20 Depth to Water (D.T.W): t11 Well Diameter: 4, 8, 8 Total Volume Purged: y✓, (� Casing Type: Py , Steel Purge Rate: -75 L - mUmin Sampling Device: I?erista Monsoon, Grundfos, Bailer, other: Tubing Type: Polyethylene Measuring Point: op of Casi other: Pump Intake (ft below M.P.): [ Color: (n F.t Odor: Yes, Time: min Volume Purged DTW: feet Temp (eC) pH std units SPC uS/cm DO m /L ORP mV Turb NTU Comments: Stabalization Criteria2 (gallons) (see note below)3 +/- 3% +/- 0.1 unit +/- 3% +/- 10% +/- 10 my +/- 10%, ly, ), /112 1 0 L c2 191 '7 2 —11% ( 2-Z �L a r OJ „ 't Z (r (v ! Z ' )7 z Ir i iJ Ly 99 Field Parameters measured with: YSI Pro / Official Sampling Date & Time: 51413) Samples Collected: Analysis Requested: Preservative: Hold Time (days): Lab: Metals 6010D HNO3 28 Pace Analytical Sulfate 300 — 28 Pace Analytical TDS 2540C 7 Pace Analytical Notes: (1) - Do not measure depth to bottom of well unit after purging and sampling to reduce resuspending fines that maybe resting on the well bottom. (2) -Stabilization criteria based on three most recent consecutive measurements. (3) -Total dravdown in well to be less than 0.1 in (0.32 it). Purging rate to be lowered as necessary to keep dravclovm below 0.1 m (0.32 ft). 1096 atren turbidity Is over 10 NTUs. (5) Well Volume (gal) = 0.041d2h: (6)- DO Is not a stabilization criterion for the "Groundvter sampling" SESD Standard Operating Procedure. (7)-ORP is not a stabilization criterion for the "Groundwater sampling" SESD Standard Operating Procedure. WATER MATRIX SAMPLING FIELD DATA FORM i �0 ERM Site Name: Swift Creek ERM Project Number: 0397281 Sample Type:(t onitor ell, DPT, Surface Water, Potable WSW; other) Sample ID: - Date: (- 7 Time: f Sampling Personnel (circle one): Amanda Farr ndrew Jaskowia Weather Conditions (circle one): Sunny, Partly Cloudy, C o n, ther Well Type: Flush Surface Completion, -tick completion Well Tag Present: dY�s, No Well Locked: Y s, No Lock Present: YQ, No Well ID info on Tag: , No Well Bolted: Yes, a Well Cap: Ke , No Well Cap Condition: o , Replace, Other: Well Pad ConditionZoWd, Cracked, Replace, Other: Well Location: ra , Asphalt, Concrete, Woods, Other: Additional Comments: Total Depth of Well (T.D.): Zv, a. Screen Length: 5, , 0 15, 20 Depth to Water (D.T.W): (1) 10.2,1 Well Diameter: z 4, s, 8 Total Volume Purgecl l ' rt L- Casing Type: V , Steel Purge Rate: %, mL/min Sampling Device: Re �1;, Monsoon, Grundfos, Bailer, Other: Tubing Type: Polyethylene Measuring Point: r. ,T.pofC itlg other: Pump Intake (ft below M.P.): .,n,(- Color: Odor: Yes, 69 Time: min Volume Purged DTW: feet Temp Cl pH std units SPC uS/cm DO m /L ORP mV Turb NTU Comments: Stabalization Criteria2 �,n L_ (gallons) (see note below)3 +/- 3% +/- 0.1 unit +/- 3% +/- 10% +/- 10 mV +/- 10%4 1? T41 py fl I 1 (' ilrZ �' V — /. J 0, 2 r-ill IJ2 ( 01,10 � v j a Field Parameters measured with: YSI Pro / Official Sampling Date & Time: i0 r �0 / 5-!-:—) Z�j Samples Collected: Analysis Requested: Preservative: Hold Time (days): Lab: Metals 6010D HNO3 28 Pace Analytical Sulfate 300 — 28 Pace Analytical TDS 2540C 7 Pace Analytical Notes: (1)-Do not measure depth to bottom of well unld after purging and sampling to reduce resuspending fines that maybe resting on the well bottom. (2) -Stabilization criteria based on three most recent consecutive measurements. (3) -Total drav,dovn in well to be less than 0.1 in (0.32 It). Purging rate to be lowered as necessary to keep dravedown below 0.1 an (0.32 ft). (4)+/- M when turbidity is over 10 NTUs. (5) Well Volume (gal) = 0.041d2h: (6) - DO h not a stabilization criterion for the "Groundwater sampling" SESD Standard Operating Procedure. (7)- ORP is not a stabilization criterion for the "Groundwater sampling" SESD Standard Operating Procedure. WATER MATRIX SAMPLING FIELD DATA FORM - ,lJ, ERM Site Name; Swift Creek ERM Project Number: 0397281 Sample Type: (Monitor Well, DPT, Surface Water, Potable WSW; other) M �✓ Sample ID: MW -Olt _69 Date: — Z Time: ' Sampling Personnel (circle one): Amanda rr _ _ Andrew Jaskowiak Weather Conditions (circle one): unny, artly Cil ud , Cloudy, Rain, Other Well Type: Flush Surface Completion, Stick Up Completion Well Tag Present: e0s, No Well Locked: Q, No Lock Present: 66, No Well ID info on Tag: No Well Bolted: es, Q Well Cap: e , No Well -Cap Condition• o , Replace, Other: Well Pad CondltiorVdooCracked, Replace, Other: Well Locatlo ' Gra , Asphalt, Concrete, Woods, Other: Additional Comments: Total Depth of Well (T.D.): 2- Screen Length: 5, 16, 20 Depth to Water (D.T.W): (1)11-50 Well Diameter: 4, s, s Total Volume Purged: Casing Type: C Steel Purge Rate: IOU mL/min Sampling Device: /feristAtic, Monsoon, Grundfos, Bailer, Other: Tubing Type: Polyethylene Measuring Point: op of Iasi other: Pump Intake (ft below M.P.): 115 Color: M a Odor: Yes, Time: min Volume Purged DTW: feet Temp Cc) pH std units SPC uS/cm DO m /L ORP mV Turb NTU Comments: Stabalization Criteria2 wq, (gallons) (see note below)' +/- 3% +/- 0.1 unit +/- 3% +/- 10% +/- 10 my +/- 10%4 (1-44, N 3 . . t-4 C,3, q 2 4 atB, 0.55 a. 0 oo of o 1000 , voo U. ^(P ti r 8 i U 1 � I •O .5 U 1-1-0 ) v vo i T. 0 v Field Parameters measured with: YSI Pro / Official Sampling Date & Time: /1(9�%61 ?) / I01 J Samples Collected: Analysis Requested: Preservative: Hold Time (days): Lab: Metals 6010D HNO3 28 Pace Analytical Sulfate 300 — 28 Pace Analytical TDS 2540C — 7 Pace Analytical Notes: 0)- Do not measure depth to bottom of well until after purging and sampling to reduce resuspending fines that maybe resting on the well bottom. (2) -Stabilization criteria based on three most recent consecutive measurements. (3)- Total drawdown in well to be less than 0.1 m (0.32 it). Purging rate to be lowered as necessary to keep drawdown below 0.1 m (0.32 ft). (4) +1-10%when turbidity Is over 10 NTUs. (5) Well Volume (gal) = 0.041d2h: (6) - DO Is not a stabilization criterion for the "Groundwater sampling' SESD Standard Operating Procedure. (7) - ORP is not a stabilization criterion for the "Groundwater sampling" SESD Standard Operating Procedure. WATER MATRIX SAMPLING FIELD DATA FORM We ERM Site Name: Swift Creek ERM Project Number: 0397281 Sample Type: (Monitor Well, DPT, Surface Water, Potable WSW; other) M Sample ID: V/ - 0,5 ►Z (� Date: Time: Sampling Personnel (circle one): manda En Andrew Jaskowiak Weather Conditions (circle one): unny, Partly Cloudy, loud Rain, Other Well Type: Flush Surface CO-P I., Stick Up Completion Well Tag Present: No Well Locked: es o Lock Present: 4V No Well ID info on Tag: e , No Well Bolted; No Well Cap: &esj No Well Cap Condition: Dod, eplace, Other: Well Pad Condition: �!&-b,Woods, cked, Repla , Other: Well Location: Grass, Asphal Concre Other: Additional Comments: Nk Total Depth of Well (T.D.): 5 -(ea Screen Length: fin 15, 20 Depth to Water (D.T.W): (1) Cr3 Well Diameter: 6, 8 Total Volume Purged: Casing Type: , Steel - Purge Rate: mum -in Sampling Device: CjFer , Monsoon, Grundfos, Bailer, Other: Tubing Type: Polyethylene Measuring Point: eop, of Ca-4,g other: Pump Intake (ft below M.P.): Color: Odor: Yes, Time: min Volume Purged DTW: feet Temp (eC) 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 +/- 10%4 i I ,io l.� •2 5• t -Olt iq I,b ZI -K 0.0 1.o O Z � • • LU o o � a e 2• 1"6.5 I OU o 22 5.o Z..o} - - IT A�L 1015 -5(J o.o .I o 1. , ,V3 0.1' Af Field Parameters measured with: YSI Pro/ Official Sampling Date & Time: 5/ J Z_()Z3/ I L 5S_ Samples Collected: Analysis Requested: Preservative: Hold Time (days): Lab: Metals 6010D HNO3 28 Pace Analytical Sulfate 300 - 28 Pace Analytical TDS 2540C - 7 Pace Analytical Notes: (1) -Do not measure depth to bottom of well until after purging and sampling to reduce resuspending fines that maybe resting on the well bottom. (2)-Stabilization criteria based on three most recent consecutive measurements. (3)-Total drawdown in well to be less than 0.1 in (0.32 it). Purging rate to be Iowered as necessary to keep dravdovm below 0.1 in (0.32 it). (4) i/-10%when turbidity Is over 10 NTUs. (5) Well Volume (gal) = 0.041d2h: (6)- DO Is not a stabilization criterion for the "Groundwater sampling" SESD Standard Operating Procedure. (7)-ORP Is not a stabilization criterion for the "Groundvater sampling" SESD Standard Operating Procedure. WATER MATRIX SAMPLING FIELD DATA FORM i' ERM Site Name; Swift Creek ERM Project Number: 0397281 Sample Type: (Monitor Well, DPT, Surface Water, Potable WSW; other) Sample ID: //t1 1 -- O 6-4 Date. Time: , Sampling Personnel (circle one): Amanda Farr Andrew Jasko ak Weather Conditions (circle one): Sunny, Partly Cloudy, : loud), Rain, Other Well Type: F sh -face Completion, Stick Up Completion Well Tag Present: es No Well Locke :, Y , No Lock Present: es, No Well ID info on Tag: Y;�s J No Well Bolted. Yes, No Well Cap: 46- ' o Well Cap Condition: good Replace, Other: Well Pad Condition: cod, racked, Replace, Other: Well Locatiop. Grasp, Asphalt, Concrete, Woods, Other: Additional Commen'ts:'� _. Total Depth of Well (T.D.): Screen Length: 5, , 15, 20 Depth to Water (D.T.W): (1) Well Diameter: 4, 8, 8 Total Volume Purged: Iiij fn L Casing Type: VC Steel Purge Rate: mUmin Sampling Device: erista1y , Monsoon, Grundfos, Bailer, Other: Tubing Type: Polyethylene Measuring Point: { op of Casing other: Pump Intake (ft below M.P.): Q Color: '\ Odor: Yes, Time: min Volume P r ed DTW: feet Temp (eC) pH std units SPC uS/cm DO m /L ORP mV Turb NTU Comments: Stabalization Criteria2 (ga ns) (see note be,OW)3 +/- 3% +/- 0.1 unit +/- 3% +/- 10% +/- 10 my +/- 10%4 i—l2- 1 4 d 1q. I tJ 0 4201L 1 t TLf 7ao t �,� 121z 0 o P 1 -J t q 21 Oir 2,TX 1 Field Parameters measured with: YSI Pro / Official Sampling Date & Time: 6 Samples Collected: Analysis Requested: Preservative: Metals 6010D HNO3 Sulfate TDS 300 2540C Hold Time (days): Lab: 28 Pace Analytical 28 Pace Analytical 7 Pace Analytical Notes: (1) - Do not measure depth to bottom of well untB after purging and sampling to reduce resuspending fines that maybe resting on the well bottom. (2) - Stabilization criteria based on three most recent consecutive measurements. (3)-Total dravdovm in well to be less than 0.1 m (0.32 ft). Purging rate to be lowered as necessary to keep dravedmm below0.1 an (0.32 fit). (4)+/-10%vrhen turbidity Is over 10 NTUs. (5) Welt Volume (gal) = 0.041d2h: (6)-DO Is not a stabilization criterion for the "Grovrc Na(er sampling" SESD Standard Operating Procedure. (7) - ORP is not a stabilization criterion for the "Groundwater sampling' SESD Standard Operating Procedure. WATER MATRIX SAMPLING FIELD DATA FORM kirj� �� ERM Site Name; Swift Creek ERM Project Number: 0397281 Sample Type: (lWoniWr W11 , DPT, Surface Water, Potable WSW; other) G - - Sample ID: l ._ '- L- - Date: -- j- 2, Time: < Sampling Personnel (circle one): Amanda Farr Andrew Jasko a Weather Conditions (circle one): C artly, dy, Clqud Rain, Other ,,. ,--Sunny, Well Type: Flush Surface Completion, ;_t6 ick Up Coypletion Well Tag Present: Ye , No Well Locked: ,X No Lock Present: e , No Well ID info on Tag: No Well Bolted: Yes, iRp Well Cap:.. e , No Well Cap Condition: o W, Replace, Other: Well Pad Condition:(dooq Cracked, Replace, Other: Well Location: ` ra ??Asphalt, Concrete, Woods, Other: Additional Comments: Total Depth of Well (T.D.): 1 Screen Length: 5, .10 15, 20 Depth to Water (D.T.W): (1) Well Diameter: r2 4, 6, 8 Total Volume Purged:02i2 Casing Type: v ,steel Purge Rate: 1� mL/min Sampling Device: `Ke ista Monsoon, Grundfos, Bailer, Other: Tubing Type: Polyethylene Measuring Point: rT p of Cas6b other: Pump Intake (ft below M.P.): Color: ( __.. Odor: Yes, o Time: min Volume Purged DTW: feet Temp CC) pH std units SPC uS/cm DO m /L ORP mV Turb NTU Comments: Stabalization Criteria2 �-j L,. (gallons) (see note belOW)3 +/- 3% +/- 0.1 unit +/- 3% +/- 10% +/- 10 my +/- 10%4 wry � ` C -, G ` F7 '� -01✓ /, 6-1 �' ' / o -i . l r -2 ' `�71s 7 Z 14t 10 7 ci 2 yr 2 4,2.�724 0 q l5I Field Parameters measured with: YSI Pro / Official Sampling Date & Time: Samples Collected: Analysis Requested: Preservative: Hold Time (days): Lab: Metals 6010D HNO3 28 Pace Analytical Sulfate 300 — 28 Pace Analytical TDS 2540c — 7 Pace Analytical Notes: (1) - Do net measure depth to bottom of well until after purging and sampling to reduce resuspending fines that maybe resting on the well bottom. (2)-Stabilization criteria based on three most recent consecutive measurements. (3) - Total drandovm in vmll to be less than 0.1 m (0.32 fl). Purging rate to be lowered as necessary to keep dray.Hovm below0.1 m (0.32 it). (4)+1- 10%vfisn turbidity Is over 10 NTUa. (5) Well Valwas (gal) = 0.041d2h: (6) - DO Is not a stabilization criterion for the "Groundwater sampling" SESD Standard Operating Procedure. (7) - ORP is not a stabilization criterion for the "Groundwter sampling" SESD Standard operating Procedure. WATER MATRIX SAMPLING FIELD DATA FORM t ERM Site Name: Swift Creek ERM Project Number: 0397281 Sample Type: Monitor Well, DPT, Surface Water, Potable WSW; other) mori 1 40y- k/cm Sample ID: MO -Of - Date: Cj O `j Time: Sampling Personnel (circle one): Amanda Farr ---Andrew Jaskowiak Weather Conditions (circle one): Sunny, Partly Cloudy, Iou�,7Rain, Other Well Type: Flush Surface Completion, Stick Up Completion Well Tag Present: QK l )No Well Locked: (Ye ,) No Lock Present: No Well ID info on Tag: es, No Well Bolted: Yes,)No Well Cap: es�'No Well Cap Condition: 600d, Replace, Other: Well Pad Cond'Itio ood, Packed, Replace, Other: Well Location: Grass, Asphalt, Concrete, oods Other: Additional Commen s: Total Depth of Well (T.D.): j (j • Screen Length: 5, 1 ; 15, 20 Depth to Water (D.T.W): (1) Well Diameter: a 4, 6, 8 Total Volume Purged: Casing Type: V i teel Purge Rate: 1 Q mUmin Sampling Device:. jstalti , Monsoon, Grundfos, Bailer, Other: Tubing Type: Polyethylene Measuring Point:-G--rrg other: Pump Intake (ft below M.P.): Color: tiNc Odor: Yes, No Time: min Volume Purged DTW: feet Temp (eC) pH (std units SPC uS/cm DO m /L ORP mV Turb NTU Comments: Stabalization Criteria2 fq� (gallons) (see note belOW)3 +/- 3% +/- 0.1 unit +/- 3% +/- 10% +/- 10 my +/- 10p4 CCU 3 . 5 ZCD 6 49 el Z 1 - 0 2. 2-12-11 1000_ 94,41 Z'Zci 00,2 It �Z ,5 q :� to o✓ 0 0 Field Parameters measured with: YSI Pro/ Official Sampling Date & Time: � /A %%2 3 / 2 qS 04 Samples Collected: Analysis Requested: Preservative: Hold Time (days): Lab: Metals 6010D HNO3 28 Pace Analytical Sulfate 300 — 28 Pace Analytical TDS 2540C — 7 Pace Analytical Notes: (1)- Do not measure depth to bottom of well until after purging and sampling to reduce resuspending fines that maybe resting on the well bottom. (2)-Stabilization criteria based on three most recent consecutive measurements. (3)-Total dray.dovm In well to be less then 0.1 m (0.32 (1). Purging rate to be lowered as necessary to keep drawdown below0.1 m (0.32 it). (4)+1-10%when turbidity Is over 10 NTUs. (5) Well Volume (gal) = 0.041d2h: (6) - DO Is not a stabilization criterion for the "Groundwater sampling" SESD Standard Operating Procedure. (7)- ORP in not a stabilization criterion for the "Groundwater sampling" SESD Standard Operating Procedure. WATER MATRIX SAMPLING FIELD DATA FORM kbti .i ERM Site Name: Swift Creek ERM Project Number: 0397281 Sample Type: (Monitor Well, DPT, Surface Water, Potable WSW; other) Sample ID: fYj I--- (J 0 ' ,,21;2- r Date: — Time: ' r Sampling Personnel (circle one): Amanda Farr And skowiak Weather Conditions (circle one): Sunny, Partly Cloudy, Cloudy, Rain, Other Well Type: Flush Surface Completion, S (k Completion Well Tag Present: ,,,Y¢�, No Well Locked: . No Lock Pres nt: No Well ID info on Tag: "e , No Well Bolted: Yes, o Well Cap: Yes, Well Cap Condition: o , Replace, Other: Well Pad Condition' Goo , Cracked, Replace, Other: Well LocationrGra;ls, Asphalt, Concrete, Woods, Other: Additional Commenf5' `- 99 Total Depth of Well (T.D.): I f. Screen Length: 5, 0, 15, 20 Depth to Water (D.T.W): (1) Well Diameter: 0 a, s, s Total Volume Purged: Casing Type: W v steel Purge Rate: �7 mL/min Sampling Device: p rista ic, Monsoon, Grundfos, Bailer, Other: Tubing Type: Polyethylene Measuring Point: p of Casing other: Pump Intake (ft below M.P.): 11 fj-, Color:. dor: Yes, Mo Time: min Volume Purged DTW: feet Temp (eC) pH std units SPC uS/cm DO m /L ORP mV Turb NTU Comments: Stabalization Criteria2 (gallons) (see note belOW)3 +/- 3% +/- 0.1 unit +/- 3% +/- 10% +/- 10 my +/- 10%4 ( > 2 -, " V :o . i _ j' /1 Z42.h. f0,2-,' % - ., 12 J/442 � i23// -) d yy r/� F y /I} 9 l Of nab IA g AL Field Parameters measured with: YSI Pro / Official Sampling Date & Time: )-1U "- 2?/ Samples Collected: Analysis Requested: Preservative: Hold Time (days): Lab: Metals 6010D HNO3 28 Pace Analytical Sulfate 300 — 28 Pace Analytical TDS 2540c — 7 Pace Analytical Notes: (1) - Do not measure depth to bottom dwell md, after purging and sampling to reduce resuspending fines that may be resting on the well bottom. (2)- Stabii'¢alion r0cda based on three most recent consecutive measurements. (3) - Total dr-down in veall to be less than 0.1 m (0.32 0), Purging rate to be lowered as necessary to keep dravdmm below 0.1 on (0.32 fl). (4) +/- 10%when turbidity is over 10 NTUa. (s) Well Volume (gal) = 0.041d2h: (6) -Do Is not a stabil¢ation criterion for the "Groundwater sampling" SESD Standard Operating Procedure. (7)-ORP is not a stabil¢atlon criterion for the "Groundwater sampling" SESD Standard Operating Procedure. WATER MATRIX SAMPLING FIELD DATA FORM I ERM Site Name; Swift Creek ERM Projerct Number: 0397281 Sample Type: (Monitor Well, DPT, Surface Water, Potable WSW; other) Sample ID: S1W -01 -,' Date: VZ16i ZOV5 Time: Sampling Personnel (circle one): Amanda Far Andrew Jaskowiak Weather Conditions (circle one): Surlpy, artly Clo y, Cloudy, Rain, Other Well Type: Flu Surface Completion, Sti p Completion Well Tag Pr sent: Ye , No Well Locked: Yes, No Loc esent: Yes, No Well ID info o Ta Yes, No Well Bolted: Yes, No : Yes, No Well Cap Con n: Good, Replace, Other: Well Pad Condition: G Cracked, Replace, O Well Locat' :Grass, halt, Concrete, Woods, Other: Additional Comm ts: lea r, Total Depth of Well (T.D.). Screen Length: 5, 10, 15, 20 Depth to Water (D.T.W): 11) Well Diameter: 2, 4, s, 8 Total Volume Purged: v Casing Type: PVC, Steel Purge Rate: L/min Sampling Device: Peristaltic, Monsoon, Grundfo Baile Other: Tubing Type: Polyethylene Measuring Point: Top of casing other: Pump Intake (ft below M. .): Color: Odor: Yes, o Time: min Volum Purged DTW: feet Temp (eC) pH std units) SPC (uSkm) DO (m /L ORP mV Turb NTU Comments: Stabalization Criteria" (gallons) (see note belO4 +/- 3% +/- 0.1 unit +/- 3% +/- 10% +/- 10 mV +/- 10%4 -� • (] . d Field Parameters measured with: YSI Pro / Official Sampling Date & Time: j -ZS- w2 � / 2 : N T Samples Collected: Analysis Requested: Preservative: Hold Time (days): Lab: Metals 6010D HNO3 28 Pace Analytical Sulfate 300 — 28 Pace Analytical TDS 2540C — 7 Pace Analytical Notes: (1)-Do not measure depth to bottom of well until after purging and sampling to reduce resuspending fines that maybe resting on the well bottom. (2)-Stabilization criteria based on three most recent consecutive measurements. (3) - Total drawdown in well to be less than 0.1 m (0.32 ti). Purging rate to be lowered as necessary to keep drawdown below 0.1 in(0.32 it). o .1-10%when turbidly is over 10 NTUs. (5) Well Volume (gal) = 0.041d2h: (6) - DO Is not a stabilization criterion for the "Groundwater sampling"SESD Standard Operating Procedure. (7) - ORP Is not a stabilization criterion for the "Groundwater sampling' SESD Standard Operating Procedure. WATER MATRIX SAMPLING FIELD DATA FORM Site Name: Swift Creek ERM Project Number: 0397281 Sample Type: (Monitor Well, DPT, Surface Water, Potable WSW; other) %L- 2 Sample ID: 5t -02 -- 61 t -- ""- Date: �-2- , Time: 1 Sampling Personnel (circle one): Amanda Farr Arew Jas i Weather Conditions (circle one): Sunny, rtly Clo dy, Cloudy, Rain, Other Well Type: Flush Surface Completion, Stick Up Completion Well Tag Present: Yes, No Well Locked: Yes, No Lock Present: Yes, No Well ID info on Tag: Yes, No Well Bolted: Yes, No Well Cap: Yes, No Well Cap Condition: Good, Replace, Other: Well Pad Condition: Good, Cracked, Replace, Other: Well Location: Grass, Asphalt, Concrete, Woods, Other: Additional Comments: 1c,-•,C e-c- Total Depth of Well (T.D.): Screen Length: 5, 10, 15, 20 Depth to Water (D.T.W): t1) Well Diameter: 2, 4, s, 8 Total Volume Purged: Casing Type: PVC,:I Purge Rate: mL/min Sampling Device %Peristaltic Monsoon, Grundfos, Bailer, Other: Tubing Type: Polyethylene Measuring Point: To asing other: Pump Intake (ft below M.P.): Color: Odor: Yes, 19D Time: min Volume Purged DTW: feet Temp CC) pH std units SPC uS/cm DO m /L ORP mV Turb NTU Comments: Stabalization Criteria2 (gallons) (see note belOW)3 +/- 3% +/- 0.1 unit +/- 3% +/- 10% +/- 10 mV +/- 10%4 Field Parameters measured with: Official Sampling Date & Time:l,`(� / z Samples Collected: Analysis Requested: Preservative: Hold Time (days): Lab: Metals 6010D HNO3 28 Pace Analytical Sulfate 300 — 28 Pace Analytical TDS 2540C — 7 Pace Analytical Notes: (1) - Do not measure depth to bottom of well unll after purging and sampling to reduce resuspending fines that may be resting on the well bottom, (2)-Sta lhzation criteria based on three most recent consecutive measurements. (3) - Total dravdovm In well to be less than 0.1 m (0.32 fit). Purging rate to be evvered as necessary to keep dravvdown below0.1 m (0.32 it). (4) +1- 10%efien turbidity Is over 10 NTUs. (5) We If Volume (gal) = 0.041d2h: (6) - DO Is not a stabilization criterion for the "Groundvrater sampling" SESD Standard Operating Procedure. (7)-ORP is not a stabilization criterion for the "Groundviater sampling' SESD Standard Operating Procedure. WATER QUALITY MONITORING AND CORRECTIVE ACTION EFFECTIVENESS REPORT — MAY 2023 /_\» =1 ►11] e\ ZtAb . I7_VA C_1 May 2023 www.erm.com Version: 1.0 Project No.: 0397281 Client: ReUse Technology leAnalyiical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 June 13, 2023 Chris Means ERM 300 West Summit Ave Suite 330 Charlotte, NC 28203 RE: Project: SWIFT CREEK Pace Project No.: 92669674 Dear Chris Means: Enclosed are the analytical results for sample(s) received by the laboratory on May 27, 2023. The results relate only to the samples included in this report. Results reported herein conform to the applicable TNI/NELAC Standards and the laboratory's Quality Manual, where applicable, unless otherwise noted in the body of the report. The test results provided in this final report were generated by each of the following laboratories within the Pace Network: • Pace Analytical Services - Asheville • Pace Analytical Services - Peachtree Corners, GA If you have any questions concerning this report, please feel free to contact me. Sincerely, Matthew Brainard matthew.brainard@pacelabs.com (704)875-9092 Project Manager Enclosures cc: EDDs, Reports, ERM REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 1 of 33 leAnalyiical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Project: SWIFT CREEK Pace Project No.: 92669674 Pace Analytical Services Asheville 2225 Riverside Drive, Asheville, NC 28804 Florida/NELAP Certification #: E87648 North Carolina Drinking Water Certification #: 37712 North Carolina Wastewater Certification #: 40 Pace Analytical Services Peachtree Corners 110 Technology Pkwy, Peachtree Corners, GA 30092 Florida DOH Certification #: E87315 Georgia DW Inorganics Certification #: 812 CERTIFICATIONS South Carolina Laboratory ID: 99030 South Carolina Certification #: 99030001 Virginia/VELAP Certification #: 460222 North Carolina Certification #: 381 South Carolina Certification #: 98011001 Virginia Certification #: 460204 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 2 of 33 leAnalyiical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 SAMPLE SUMMARY Project: SWIFT CREEK Pace Project No.: 92669674 Lab ID Sample ID Matrix Date Collected Date Received 92669674001 MW-0IS-WG-20230526 Water 05/26/2311:25 05/27/23 11:53 92669674002 MW-01 D-WG-20230526 Water 05/26/23 12:55 05/27/23 11:53 92669674003 MW-02S-WG-20230526 Water 05/26/2312:55 05/27/23 11:53 92669674004 MW-02D-WG-20230526 Water 05/26/2311:45 05/27/23 11:53 92669674005 MW-03-WG-20230526 Water 05/26/2310:40 05/27/23 11:53 92669674006 MW-04-WG-20230526 Water 05/26/2310:15 05/27/23 11:53 92669674007 MW-05RS-WG-20230525 Water 05/25/2312:50 05/27/23 11:53 92669674008 MW-05RD-WG-20230525 Water 05/25/2312:55 05/27/23 11:53 92669674009 MW-06-WG-20230526 Water 05/26/23 08:50 05/27/23 11:53 92669674010 MW-07-WG-20230526 Water 05/26/2314:45 05/27/23 11:53 92669674011 MW-08-WG-20230526 Water 05/26/2315:15 05/27/23 11:53 92669674012 SW-01-WG-20230525 Water 05/25/2314:47 05/27/23 11:53 92669674013 SW-02-WG-20230526 Water 05/26/2313:40 05/27/23 11:53 92669674014 FD-01-WG-20230526 Water 05/26/23 00:00 05/27/23 11:53 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 3 of 33 leAnalyiical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 SAMPLE ANALYTE COUNT Project: Pace Project No.: SWIFT CREEK 92669674 Analytes Lab lD Sample ID Method Analysts Reported Laboratory 92669674001 MW-01S-WG-20230526 EPA 6010D MS 7 PASI-GA EPA 7470A VB 1 PASI-GA SM 2540C-2015 JMH1 1 PASI-A EPA 300.0 Rev 2.1 1993 JCM 1 PASI-A 92669674002 MW-01D-WG-20230526 EPA 6010D MS 7 PASI-GA EPA 7470A VB 1 PASI-GA SM 2540C-2015 JMH1 1 PASI-A EPA 300.0 Rev 2.1 1993 JCM 1 PASI-A 92669674003 MW-02S-WG-20230526 EPA 6010D MS 7 PASI-GA EPA 7470A VB 1 PASI-GA SM 2540C-2015 JMH1 1 PASI-A EPA 300.0 Rev 2.1 1993 JCM 1 PASI-A 92669674004 MW-02D-WG-20230526 EPA 6010D MS 7 PASI-GA EPA 7470A VB 1 PASI-GA SM 2540C-2015 JMH1 1 PASI-A EPA 300.0 Rev 2.1 1993 JCM 1 PASI-A 92669674005 MW-03-WG-20230526 EPA 6010D MS 7 PASI-GA EPA 7470A VB 1 PASI-GA SM 2540C-2015 JMH1 1 PASI-A EPA 300.0 Rev 2.1 1993 JCM 1 PASI-A 92669674006 MW-04-WG-20230526 EPA 6010D MS 7 PASI-GA EPA 7470A VB 1 PASI-GA SM 2540C-2015 JMH1 1 PASI-A EPA 300.0 Rev 2.1 1993 JCM 1 PASI-A 92669674007 MW-05RS-WG-20230525 EPA 6010D MS 7 PASI-GA EPA 7470A VB 1 PASI-GA SM 2540C-2015 JMH1 1 PASI-A EPA 300.0 Rev 2.1 1993 JCM 1 PASI-A 92669674008 MW-05RD-WG-20230525 EPA 6010D MS 7 PASI-GA EPA 7470A VB 1 PASI-GA SM 2540C-2015 JMH1 1 PASI-A EPA 300.0 Rev 2.1 1993 JCM 1 PASI-A 92669674009 MW-06-WG-20230526 EPA 6010D MS 7 PASI-GA EPA 7470A VB 1 PASI-GA SM 2540C-2015 JMH1 1 PASI-A EPA 300.0 Rev 2.1 1993 JCM 1 PASI-A 92669674010 MW-07-WG-20230526 EPA 6010D MS 7 PASI-GA REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 4 of 33 leAnalyiical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 SAMPLE ANALYTE COUNT Project: SWIFT CREEK Pace Project No.: 92669674 Analytes Lab lD Sample ID Method Analysts Reported Laboratory EPA 7470A VB 1 PASI-GA SM 2540C-2015 JMH1 1 PASI-A EPA 300.0 Rev 2.1 1993 JCM 1 PASI-A 92669674011 MW-08-WG-20230526 EPA 6010D MS 7 PASI-GA EPA 7470A VB 1 PASI-GA SM 2540C-2015 JMH1 1 PASI-A EPA 300.0 Rev 2.1 1993 JCM 1 PASI-A 92669674012 SW-01-WG-20230525 EPA 6010D MS 7 PASI-GA EPA 7470A VB 1 PASI-GA SM 2540C-2015 JMH1 1 PASI-A EPA 300.0 Rev 2.1 1993 JCM 1 PASI-A 92669674013 SW-02-WG-20230526 EPA 6010D MS 7 PASI-GA EPA 7470A VB 1 PASI-GA SM 2540C-2015 JMH1 1 PASI-A EPA 300.0 Rev 2.1 1993 JCM 1 PASI-A 92669674014 FD-01-WG-20230526 EPA 6010D MS 7 PASI-GA EPA 7470A VB 1 PASI-GA SM 2540C-2015 JMH1 1 PASI-A EPA 300.0 Rev 2.1 1993 JCM 1 PASI-A PASI-A = Pace Analytical Services -Asheville PASI-GA = Pace Analytical Services - Peachtree Corners, GA REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 5 of 33 leAnalyiical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 ANALYTICAL RESULTS Project: SWIFT CREEK Pace Project No.: 92669674 Sample: MW-01S-WG-20230526 Parameters Lab ID: 92669674001 Collected: 05/26/23 11:25 Report Results Units Limit MDL DF Received: 05/27/23 11:53 Matrix: Water Prepared Analyzed CAS No. Qual 6010D ATL ICP Analytical Method: EPA 601 OD Preparation Method: EPA 3010A Pace Analytical Services - Peachtree Corners, GA Arsenic ND ug/L 30.0 26.2 1 06/06/23 09:53 06/06/23 16:25 7440-38-2 Barium 104 ug/L 10.0 1.3 1 06/06/23 09:53 06/06/23 16:25 7440-39-3 Cadmium ND ug/L 10.0 2.7 1 06/06/23 09:53 06/06/23 16:25 7440-43-9 Chromium ND ug/L 10.0 3.6 1 06/06/23 09:53 06/06/23 16:25 7440-47-3 Silver ND ug/L 10.0 4.6 1 06/06/23 09:53 06/06/23 16:25 7440-22-4 Lead ND ug/L 25.0 8.1 1 06/06/23 09:53 06/06/23 16:25 7439-92-1 Selenium ND ug/L 40.0 31.1 1 06/06/23 09:53 06/06/23 16:25 7782-49-2 7470 Mercury Analytical Method: EPA 7470A Preparation Method: EPA 7470A Pace Analytical Services - Peachtree Corners, GA Mercury ND ug/L 0.20 0.13 1 06/08/2313:30 06/08/2315:49 7439-97-6 2540C Total Dissolved Solids Analytical Method: SM 2540C-2015 Pace Analytical Services -Asheville Total Dissolved Solids 4320 mg/L 312 312 1 05/31/23 11:45 300.0 IC Anions 28 Days Analytical Method: EPA 300.0 Rev 2.1 1993 Pace Analytical Services -Asheville Sulfate 622 mg/L 12.0 6.0 12 06/01/23 06:26 14808-79-8 Date: 06/13/2023 12:56 PM REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 6 of 33 leAnalyiical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 ANALYTICAL RESULTS Project: SWIFT CREEK Pace Project No.: 92669674 Sample: MW-01D-WG-20230526 Parameters Lab ID: 92669674002 Collected: 05/26/23 12:55 Report Results Units Limit MDL DF Received: 05/27/23 11:53 Matrix: Water Prepared Analyzed CAS No. Qual 6010D ATL ICP Analytical Method: EPA 601 OD Preparation Method: EPA 3010A Pace Analytical Services - Peachtree Corners, GA Arsenic ND ug/L 30.0 26.2 1 06/06/23 09:53 06/06/23 18:18 7440-38-2 Barium 600 ug/L 10.0 1.3 1 06/06/23 09:53 06/06/23 18:18 7440-39-3 Cadmium ND ug/L 10.0 2.7 1 06/06/23 09:53 06/06/23 18:18 7440-43-9 Chromium ND ug/L 10.0 3.6 1 06/06/23 09:53 06/06/23 18:18 7440-47-3 Silver ND ug/L 10.0 4.6 1 06/06/23 09:53 06/06/23 18:18 7440-22-4 Lead ND ug/L 25.0 8.1 1 06/06/23 09:53 06/06/23 18:18 7439-92-1 Selenium ND ug/L 40.0 31.1 1 06/06/23 09:53 06/06/23 18:18 7782-49-2 7470 Mercury Analytical Method: EPA 7470A Preparation Method: EPA 7470A Pace Analytical Services - Peachtree Corners, GA Mercury ND ug/L 0.20 0.13 1 06/08/2313:30 06/08/2316:05 7439-97-6 2540C Total Dissolved Solids Analytical Method: SM 2540C-2015 Pace Analytical Services -Asheville Total Dissolved Solids 880 mg/L 50.0 50.0 1 05/31/23 11:45 300.0 IC Anions 28 Days Analytical Method: EPA 300.0 Rev 2.1 1993 Pace Analytical Services -Asheville Sulfate 17.6 mg/L 1.0 0.50 1 06/01/23 06:13 14808-79-8 Date: 06/13/2023 12:56 PM REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 7 of 33 leAnalyiical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 ANALYTICAL RESULTS Project: SWIFT CREEK Pace Project No.: 92669674 Sample: MW-02S-WG-20230526 Parameters Lab ID: 92669674003 Collected: 05/26/23 12:55 Report Results Units Limit MDL DF Received: 05/27/23 11:53 Matrix: Water Prepared Analyzed CAS No. Qual 6010D ATL ICP Analytical Method: EPA 601 OD Preparation Method: EPA 3010A Pace Analytical Services - Peachtree Corners, GA Arsenic ND ug/L 30.0 26.2 1 06/07/23 09:30 06/08/23 21:12 7440-38-2 Barium 114 ug/L 10.0 1.3 1 06/07/23 09:30 06/08/23 21:12 7440-39-3 Cadmium ND ug/L 10.0 2.7 1 06/07/23 09:30 06/08/23 21:12 7440-43-9 Chromium ND ug/L 10.0 3.6 1 06/07/23 09:30 06/08/23 21:12 7440-47-3 Silver ND ug/L 10.0 4.6 1 06/07/23 09:30 06/08/23 21:12 7440-22-4 Lead ND ug/L 25.0 8.1 1 06/07/23 09:30 06/08/23 21:12 7439-92-1 Selenium ND ug/L 40.0 31.1 1 06/07/23 09:30 06/08/23 21:12 7782-49-2 7470 Mercury Analytical Method: EPA 7470A Preparation Method: EPA 7470A Pace Analytical Services - Peachtree Corners, GA Mercury ND ug/L 0.20 0.13 1 06/08/2313:30 06/08/2316:08 7439-97-6 2540C Total Dissolved Solids Analytical Method: SM 2540C-2015 Pace Analytical Services -Asheville Total Dissolved Solids 211 mg/L 25.0 25.0 1 05/31/23 11:45 300.0 IC Anions 28 Days Analytical Method: EPA 300.0 Rev 2.1 1993 Pace Analytical Services -Asheville Sulfate ND mg/L 1.0 0.50 1 05/31/2316:35 14808-79-8 Date: 06/13/2023 12:56 PM REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 8 of 33 leAnalyiical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 ANALYTICAL RESULTS Project: SWIFT CREEK Pace Project No.: 92669674 Sample: MW-02D-WG-20230526 Parameters Lab ID: 92669674004 Collected: 05/26/23 11:45 Report Results Units Limit MDL DF Received: 05/27/23 11:53 Matrix: Water Prepared Analyzed CAS No. Qual 6010D ATL ICP Analytical Method: EPA 601 OD Preparation Method: EPA 3010A Pace Analytical Services - Peachtree Corners, GA Arsenic ND ug/L 30.0 26.2 1 06/07/23 09:30 06/08/23 21:32 7440-38-2 Barium 271 ug/L 10.0 1.3 1 06/07/23 09:30 06/08/23 21:32 7440-39-3 Cadmium ND ug/L 10.0 2.7 1 06/07/23 09:30 06/08/23 21:32 7440-43-9 Chromium ND ug/L 10.0 3.6 1 06/07/23 09:30 06/08/23 21:32 7440-47-3 Silver ND ug/L 10.0 4.6 1 06/07/23 09:30 06/08/23 21:32 7440-22-4 Lead ND ug/L 25.0 8.1 1 06/07/23 09:30 06/08/23 21:32 7439-92-1 Selenium ND ug/L 40.0 31.1 1 06/07/23 09:30 06/08/23 21:32 7782-49-2 7470 Mercury Analytical Method: EPA 7470A Preparation Method: EPA 7470A Pace Analytical Services - Peachtree Corners, GA Mercury ND ug/L 0.20 0.13 1 06/08/2313:30 06/08/2316:10 7439-97-6 2540C Total Dissolved Solids Analytical Method: SM 2540C-2015 Pace Analytical Services -Asheville Total Dissolved Solids 317 mg/L 25.0 25.0 1 05/31/23 11:45 300.0 IC Anions 28 Days Analytical Method: EPA 300.0 Rev 2.1 1993 Pace Analytical Services -Asheville Sulfate 1.8 mg/L 1.0 0.50 1 05/31/2319:30 14808-79-8 Date: 06/13/2023 12:56 PM REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 9 of 33 leAnalyiical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 ANALYTICAL RESULTS Project: SWIFT CREEK Pace Project No.: 92669674 Sample: MW-03-WG-20230526 Parameters Lab ID: 92669674005 Collected: 05/26/23 10:40 Report Results Units Limit MDL DF Received: 05/27/23 11:53 Matrix: Water Prepared Analyzed CAS No. Qual 6010D ATL ICP Analytical Method: EPA 601 OD Preparation Method: EPA 3010A Pace Analytical Services - Peachtree Corners, GA Arsenic ND ug/L 30.0 26.2 1 06/06/23 09:53 06/06/23 18:23 7440-38-2 Barium 39.8 ug/L 10.0 1.3 1 06/06/23 09:53 06/06/23 18:23 7440-39-3 Cadmium ND ug/L 10.0 2.7 1 06/06/23 09:53 06/06/23 18:23 7440-43-9 Chromium ND ug/L 10.0 3.6 1 06/06/23 09:53 06/06/23 18:23 7440-47-3 Silver ND ug/L 10.0 4.6 1 06/06/23 09:53 06/06/23 18:23 7440-22-4 Lead 11.1J ug/L 25.0 8.1 1 06/06/23 09:53 06/06/23 18:23 7439-92-1 Selenium ND ug/L 40.0 31.1 1 06/06/23 09:53 06/06/23 18:23 7782-49-2 7470 Mercury Analytical Method: EPA 7470A Preparation Method: EPA 7470A Pace Analytical Services - Peachtree Corners, GA Mercury ND ug/L 0.20 0.13 1 06/08/2313:30 06/08/2316:13 7439-97-6 2540C Total Dissolved Solids Analytical Method: SM 2540C-2015 Pace Analytical Services -Asheville Total Dissolved Solids 890 mg/L 50.0 50.0 1 05/31/23 11:45 300.0 IC Anions 28 Days Analytical Method: EPA 300.0 Rev 2.1 1993 Pace Analytical Services -Asheville Sulfate 251 mg/L 5.0 2.5 5 06/01/23 01:45 14808-79-8 Date: 06/13/2023 12:56 PM REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 10 of 33 leAnalyiical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 ANALYTICAL RESULTS Project: SWIFT CREEK Pace Project No.: 92669674 Sample: MW-04-WG-20230526 Parameters Lab ID: 92669674006 Collected: 05/26/23 10:15 Report Results Units Limit MDL DF Received: 05/27/23 11:53 Matrix: Water Prepared Analyzed CAS No. Qual 6010D ATL ICP Analytical Method: EPA 601 OD Preparation Method: EPA 3010A Pace Analytical Services - Peachtree Corners, GA Arsenic ND ug/L 30.0 26.2 1 06/07/23 09:30 06/08/23 21:36 7440-38-2 Barium 65.7 ug/L 10.0 1.3 1 06/07/23 09:30 06/08/23 21:36 7440-39-3 Cadmium ND ug/L 10.0 2.7 1 06/07/23 09:30 06/08/23 21:36 7440-43-9 Chromium ND ug/L 10.0 3.6 1 06/07/23 09:30 06/08/23 21:36 7440-47-3 Silver ND ug/L 10.0 4.6 1 06/07/23 09:30 06/08/23 21:36 7440-22-4 Lead ND ug/L 25.0 8.1 1 06/07/23 09:30 06/08/23 21:36 7439-92-1 Selenium ND ug/L 40.0 31.1 1 06/07/23 09:30 06/08/23 21:36 7782-49-2 7470 Mercury Analytical Method: EPA 7470A Preparation Method: EPA 7470A Pace Analytical Services - Peachtree Corners, GA Mercury ND ug/L 0.20 0.13 1 06/08/2313:30 06/08/2316:15 7439-97-6 2540C Total Dissolved Solids Analytical Method: SM 2540C-2015 Pace Analytical Services -Asheville Total Dissolved Solids 266 mg/L 25.0 25.0 1 05/31/23 11:45 300.0 IC Anions 28 Days Analytical Method: EPA 300.0 Rev 2.1 1993 Pace Analytical Services -Asheville Sulfate 17.4 mg/L 1.0 0.50 1 05/31/23 20:50 14808-79-8 Date: 06/13/2023 12:56 PM REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 11 of 33 leAnalyiical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 ANALYTICAL RESULTS Project: SWIFT CREEK Pace Project No.: 92669674 Sample: MW-05RS-WG-20230525 Parameters Lab ID: 92669674007 Collected: 05/25/23 12:50 Report Results Units Limit MDL DF Received: 05/27/23 11:53 Matrix: Water Prepared Analyzed CAS No. Qual 6010D ATL ICP Analytical Method: EPA 601 OD Preparation Method: EPA 3010A Pace Analytical Services - Peachtree Corners, GA Arsenic ND ug/L 30.0 26.2 1 06/06/23 09:53 06/06/23 18:28 7440-38-2 Barium 84.4 ug/L 10.0 1.3 1 06/06/23 09:53 06/06/23 18:28 7440-39-3 Cadmium ND ug/L 10.0 2.7 1 06/06/23 09:53 06/06/23 18:28 7440-43-9 Chromium ND ug/L 10.0 3.6 1 06/06/23 09:53 06/06/23 18:28 7440-47-3 Silver ND ug/L 10.0 4.6 1 06/06/23 09:53 06/06/23 18:28 7440-22-4 Lead ND ug/L 25.0 8.1 1 06/06/23 09:53 06/06/23 18:28 7439-92-1 Selenium ND ug/L 40.0 31.1 1 06/06/23 09:53 06/06/23 18:28 7782-49-2 7470 Mercury Analytical Method: EPA 7470A Preparation Method: EPA 7470A Pace Analytical Services - Peachtree Corners, GA Mercury ND ug/L 0.20 0.13 1 06/08/2313:30 06/08/2316:18 7439-97-6 2540C Total Dissolved Solids Analytical Method: SM 2540C-2015 Pace Analytical Services -Asheville Total Dissolved Solids 249 mg/L 25.0 25.0 1 05/31/23 11:42 300.0 IC Anions 28 Days Analytical Method: EPA 300.0 Rev 2.1 1993 Pace Analytical Services -Asheville Sulfate 3.2 mg/L 1.0 0.50 1 05/31/23 21:06 14808-79-8 Date: 06/13/2023 12:56 PM REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 12 of 33 leAnalyiical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 ANALYTICAL RESULTS Project: SWIFT CREEK Pace Project No.: 92669674 Sample: MW-05RD-WG-20230525 Parameters Lab ID: 92669674008 Collected: 05/25/23 12:55 Report Results Units Limit MDL DF Received: 05/27/23 11:53 Matrix: Water Prepared Analyzed CAS No. Qual 6010D ATL ICP Analytical Method: EPA 601 OD Preparation Method: EPA 3010A Pace Analytical Services - Peachtree Corners, GA Arsenic ND ug/L 30.0 26.2 1 06/06/23 09:53 06/06/23 18:33 7440-38-2 Barium 143 ug/L 10.0 1.3 1 06/06/23 09:53 06/06/23 18:33 7440-39-3 Cadmium ND ug/L 10.0 2.7 1 06/06/23 09:53 06/06/23 18:33 7440-43-9 Chromium ND ug/L 10.0 3.6 1 06/06/23 09:53 06/06/23 18:33 7440-47-3 Silver ND ug/L 10.0 4.6 1 06/06/23 09:53 06/06/23 18:33 7440-22-4 Lead ND ug/L 25.0 8.1 1 06/06/23 09:53 06/06/23 18:33 7439-92-1 Selenium ND ug/L 40.0 31.1 1 06/06/23 09:53 06/06/23 18:33 7782-49-2 7470 Mercury Analytical Method: EPA 7470A Preparation Method: EPA 7470A Pace Analytical Services - Peachtree Corners, GA Mercury ND ug/L 0.20 0.13 1 06/08/2313:30 06/08/2316:21 7439-97-6 2540C Total Dissolved Solids Analytical Method: SM 2540C-2015 Pace Analytical Services -Asheville Total Dissolved Solids 183 mg/L 25.0 25.0 1 05/31/23 11:43 300.0 IC Anions 28 Days Analytical Method: EPA 300.0 Rev 2.1 1993 Pace Analytical Services -Asheville Sulfate 8.2 mg/L 1.0 0.50 1 05/31/23 21:54 14808-79-8 Date: 06/13/2023 12:56 PM REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 13 of 33 leAnalyiical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 ANALYTICAL RESULTS Project: SWIFT CREEK Pace Project No.: 92669674 Sample: MW-06-WG-20230526 Lab ID: 92669674009 Collected: 05/26/23 08:50 Received: 05/27/23 11:53 Matrix: Water Report Parameters Results Units Limit MDL DF Prepared Analyzed CAS No. Qual 6010D ATL ICP Analytical Method: EPA 601 OD Preparation Method: EPA 3010A Pace Analytical Services - Peachtree Corners, GA Arsenic 46.1 ug/L 30.0 26.2 1 06/06/23 09:53 06/06/23 18:38 7440-38-2 Barium 65.6 ug/L 10.0 1.3 1 06/06/23 09:53 06/06/23 18:38 7440-39-3 Cadmium ND ug/L 10.0 2.7 1 06/06/23 09:53 06/06/23 18:38 7440-43-9 Chromium ND ug/L 10.0 3.6 1 06/06/23 09:53 06/06/23 18:38 7440-47-3 Silver ND ug/L 50.0 23.2 5 06/06/23 09:53 06/07/23 13:48 7440-22-4 D3 Lead 73.2 ug/L 25.0 8.1 1 06/06/23 09:53 06/06/23 18:38 7439-92-1 Selenium ND ug/L 200 156 5 06/06/23 09:53 06/07/23 13:48 7782-49-2 D3 7470 Mercury Analytical Method: EPA 7470A Preparation Method: EPA 7470A Pace Analytical Services - Peachtree Corners, GA Mercury ND ug/L 0.20 0.13 1 06/08/2313:30 06/08/2316:23 7439-97-6 2540C Total Dissolved Solids Analytical Method: SM 2540C-2015 Pace Analytical Services -Asheville Total Dissolved Solids 6750 mg/L 417 417 1 05/31/23 11:46 300.0 IC Anions 28 Days Analytical Method: EPA 300.0 Rev 2.1 1993 Pace Analytical Services -Asheville Sulfate 569 mg/L 12.0 6.0 12 06/01/23 02:01 14808-79-8 Date: 06/13/2023 12:56 PM REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 14 of 33 leAnalyiical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 ANALYTICAL RESULTS Project: SWIFT CREEK Pace Project No.: 92669674 Sample: MW-07-WG-20230526 Lab ID: 92669674010 Collected: 05/26/23 14:45 Received: 05/27/23 11:53 Matrix: Water Report Parameters Results Units Limit MDL DF Prepared Analyzed CAS No. Qual 6010D ATL ICP Analytical Method: EPA 601 OD Preparation Method: EPA 3010A Pace Analytical Services - Peachtree Corners, GA Arsenic 63.7 ug/L 30.0 26.2 1 06/06/23 09:53 06/06/23 18:43 7440-38-2 Barium 87.4 ug/L 10.0 1.3 1 06/06/23 09:53 06/06/23 18:43 7440-39-3 Cadmium ND ug/L 10.0 2.7 1 06/06/23 09:53 06/06/23 18:43 7440-43-9 Chromium ND ug/L 10.0 3.6 1 06/06/23 09:53 06/06/23 18:43 7440-47-3 Silver ND ug/L 50.0 23.2 5 06/06/23 09:53 06/07/23 13:53 7440-22-4 D3 Lead 185 ug/L 25.0 8.1 1 06/06/23 09:53 06/06/23 18:43 7439-92-1 Selenium ND ug/L 200 156 5 06/06/23 09:53 06/07/23 13:53 7782-49-2 D3 7470 Mercury Analytical Method: EPA 7470A Preparation Method: EPA 7470A Pace Analytical Services - Peachtree Corners, GA Mercury ND ug/L 0.20 0.13 1 06/08/2313:30 06/08/2316:26 7439-97-6 2540C Total Dissolved Solids Analytical Method: SM 2540C-2015 Pace Analytical Services -Asheville Total Dissolved Solids 10700 mg/L 625 625 1 05/31/23 11:46 300.0 IC Anions 28 Days Analytical Method: EPA 300.0 Rev 2.1 1993 Pace Analytical Services -Asheville Sulfate 565 mg/L 20.0 10.0 20 06/01/2316:06 14808-79-8 Date: 06/13/2023 12:56 PM REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 15 of 33 leAnalyiical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 ANALYTICAL RESULTS Project: SWIFT CREEK Pace Project No.: 92669674 Sample: MW-08-WG-20230526 Lab ID: 92669674011 Collected: 05/26/23 15:15 Received: 05/27/23 11:53 Matrix: Water Report Parameters Results Units Limit MDL DF Prepared Analyzed CAS No. Qual 6010D ATL ICP Analytical Method: EPA 601 OD Preparation Method: EPA 3010A Pace Analytical Services - Peachtree Corners, GA Arsenic 59.8 ug/L 30.0 26.2 1 06/07/23 09:30 06/08/23 21:41 7440-38-2 Barium 106 ug/L 10.0 1.3 1 06/07/23 09:30 06/08/23 21:41 7440-39-3 Cadmium ND ug/L 10.0 2.7 1 06/07/23 09:30 06/08/23 21:41 7440-43-9 Chromium 4.3J ug/L 10.0 3.6 1 06/07/23 09:30 06/08/23 21:41 7440-47-3 Silver ND ug/L 50.0 23.2 5 06/07/23 09:30 06/09/23 13:50 7440-22-4 D3 Lead 148 ug/L 25.0 8.1 1 06/07/23 09:30 06/08/23 21:41 7439-92-1 Selenium ND ug/L 400 311 10 06/07/23 09:30 06/12/23 12:24 7782-49-2 D3 7470 Mercury Analytical Method: EPA 7470A Preparation Method: EPA 7470A Pace Analytical Services - Peachtree Corners, GA Mercury ND ug/L 0.20 0.13 1 06/08/2313:30 06/08/2316:34 7439-97-6 2540C Total Dissolved Solids Analytical Method: SM 2540C-2015 Pace Analytical Services -Asheville Total Dissolved Solids 8400 mg/L 500 500 1 05/31/23 11:46 300.0 IC Anions 28 Days Analytical Method: EPA 300.0 Rev 2.1 1993 Pace Analytical Services -Asheville Sulfate 541 mg/L 10.0 5.0 10 06/01/23 02:53 14808-79-8 Date: 06/13/2023 12:56 PM REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 16 of 33 leAnalyiical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 ANALYTICAL RESULTS Project: SWIFT CREEK Pace Project No.: 92669674 Sample: SW-01-WG-20230525 Parameters Lab ID: 92669674012 Collected: 05/25/23 14:47 Report Results Units Limit MDL DF Received: 05/27/23 11:53 Matrix: Water Prepared Analyzed CAS No. Qual 6010D ATL ICP Analytical Method: EPA 601 OD Preparation Method: EPA 3010A Pace Analytical Services - Peachtree Corners, GA Arsenic ND ug/L 30.0 26.2 1 06/06/23 09:53 06/06/23 18:48 7440-38-2 Barium 37.6 ug/L 10.0 1.3 1 06/06/23 09:53 06/06/23 18:48 7440-39-3 Cadmium ND ug/L 10.0 2.7 1 06/06/23 09:53 06/06/23 18:48 7440-43-9 Chromium ND ug/L 10.0 3.6 1 06/06/23 09:53 06/06/23 18:48 7440-47-3 Silver ND ug/L 10.0 4.6 1 06/06/23 09:53 06/06/23 18:48 7440-22-4 Lead ND ug/L 25.0 8.1 1 06/06/23 09:53 06/06/23 18:48 7439-92-1 Selenium ND ug/L 40.0 31.1 1 06/06/23 09:53 06/06/23 18:48 7782-49-2 7470 Mercury Analytical Method: EPA 7470A Preparation Method: EPA 7470A Pace Analytical Services - Peachtree Corners, GA Mercury ND ug/L 0.20 0.13 1 06/08/2313:30 06/08/2316:36 7439-97-6 2540C Total Dissolved Solids Analytical Method: SM 2540C-2015 Pace Analytical Services -Asheville Total Dissolved Solids 76.0 mg/L 25.0 25.0 1 05/31/23 11:43 300.0 IC Anions 28 Days Analytical Method: EPA 300.0 Rev 2.1 1993 Pace Analytical Services -Asheville Sulfate 6.0 mg/L 1.0 0.50 1 05/31/23 22:58 14808-79-8 Date: 06/13/2023 12:56 PM REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 17 of 33 leAnalyiical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 ANALYTICAL RESULTS Project: SWIFT CREEK Pace Project No.: 92669674 Sample: SW-02-WG-20230526 Lab ID: 92669674013 Collected: 05/26/23 13:40 Received: 05/27/23 11:53 Matrix: Water Report Parameters Results Units Limit MDL DF Prepared Analyzed CAS No. Qual 6010D ATL ICP Analytical Method: EPA 601 OD Preparation Method: EPA 3010A Pace Analytical Services - Peachtree Corners, GA Arsenic ND ug/L 30.0 26.2 1 06/06/23 09:53 06/06/23 18:53 7440-38-2 Barium 25.6 ug/L 10.0 1.3 1 06/06/23 09:53 06/06/23 18:53 7440-39-3 Cadmium ND ug/L 10.0 2.7 1 06/06/23 09:53 06/06/23 18:53 7440-43-9 Chromium ND ug/L 10.0 3.6 1 06/06/23 09:53 06/06/23 18:53 7440-47-3 Silver ND ug/L 10.0 4.6 1 06/06/23 09:53 06/06/23 18:53 7440-22-4 Lead ND ug/L 25.0 8.1 1 06/06/23 09:53 06/06/23 18:53 7439-92-1 Selenium ND ug/L 40.0 31.1 1 06/06/23 09:53 06/06/23 18:53 7782-49-2 7470 Mercury Analytical Method: EPA 7470A Preparation Method: EPA 7470A Pace Analytical Services - Peachtree Corners, GA Mercury ND ug/L 0.20 0.13 1 06/08/2313:30 06/08/2316:39 7439-97-6 2540C Total Dissolved Solids Analytical Method: SM 2540C-2015 Pace Analytical Services -Asheville Total Dissolved Solids 164 mg/L 25.0 25.0 1 05/31/23 11:46 300.0 IC Anions 28 Days Analytical Method: EPA 300.0 Rev 2.1 1993 Pace Analytical Services -Asheville Sulfate 65.2 mg/L 10.0 5.0 10 05/31/23 23:14 14808-79-8 M1 Date: 06/13/2023 12:56 PM REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 18 of 33 leAnalyiical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 ANALYTICAL RESULTS Project: SWIFT CREEK Pace Project No.: 92669674 Sample: FD-01-WG-20230526 Parameters Lab ID: 92669674014 Collected: 05/26/23 00:00 Report Results Units Limit MDL DF Received: 05/27/23 11:53 Matrix: Water Prepared Analyzed CAS No. Qual 6010D ATL ICP Analytical Method: EPA 6010D Preparation Method: EPA 3010A Pace Analytical Services - Peachtree Corners, GA Arsenic ND ug/L 30.0 26.2 1 06/06/23 09:53 06/06/23 18:58 7440-38-2 Barium 111 ug/L 10.0 1.3 1 06/06/23 09:53 06/06/23 18:58 7440-39-3 Cadmium ND ug/L 10.0 2.7 1 06/06/23 09:53 06/06/23 18:58 7440-43-9 Chromium ND ug/L 10.0 3.6 1 06/06/23 09:53 06/06/23 18:58 7440-47-3 Silver ND ug/L 10.0 4.6 1 06/06/23 09:53 06/06/23 18:58 7440-22-4 Lead ND ug/L 25.0 8.1 1 06/06/23 09:53 06/06/23 18:58 7439-92-1 Selenium ND ug/L 40.0 31.1 1 06/06/23 09:53 06/06/23 18:58 7782-49-2 7470 Mercury Analytical Method: EPA 7470A Preparation Method: EPA 7470A Pace Analytical Services - Peachtree Corners, GA Mercury ND ug/L 0.20 0.13 1 06/08/2313:30 06/08/2316:42 7439-97-6 2540C Total Dissolved Solids Analytical Method: SM 2540C-2015 Pace Analytical Services -Asheville Total Dissolved Solids 4420 mg/L 312 312 1 05/31/23 11:46 300.0 IC Anions 28 Days Analytical Method: EPA 300.0 Rev 2.1 1993 Pace Analytical Services -Asheville Sulfate 654 mg/L 10.0 5.0 10 06/01/23 01:30 14808-79-8 Date: 06/13/2023 12:56 PM REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 19 of 33 leAnalyiical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 QUALITY CONTROL DATA Project: SWIFT CREEK Pace Project No.: 92669674 QC Batch: 778690 Analysis Method: EPA 6010D QC Batch Method: EPA 3010A Analysis Description: 601 OD ATL Laboratory: Pace Analytical Services - Peachtree Corners, GA Associated Lab Samples: 92669674001, 92669674002, 92669674005, 92669674007, 92669674008, 92669674009, 92669674010, 92669674012,92669674013,92669674014 METHOD BLANK: 4039223 Matrix: Water Associated Lab Samples: 92669674001, 92669674002, 92669674005, 92669674007, 92669674008, 92669674009, 92669674010, 92669674012,92669674013,92669674014 Blank Reporting Parameter Units Result Limit MDL Analyzed Qualifiers Arsenic ug/L ND 30.0 26.2 06/06/2316:15 Barium ug/L ND 10.0 1.3 06/06/2316:15 Cadmium ug/L ND 10.0 2.7 06/06/2316:15 Chromium ug/L ND 10.0 3.6 06/06/2316:15 Lead ug/L ND 25.0 8.1 06/06/2316:15 Selenium ug/L ND 40.0 31.1 06/06/2316:15 Silver ug/L ND 10.0 4.6 06/06/2316:15 LABORATORY CONTROL SAMPLE: Parameter 4039224 Units Spike Conc. LCS Result LCS % Rec % Rec Limits Qualifiers Arsenic ug/L 1000 929 93 80-120 Barium ug/L 1000 952 95 80-120 Cadmium ug/L 1000 951 95 80-120 Chromium ug/L 1000 969 97 80-120 Lead ug/L 1000 953 95 80-120 Selenium ug/L 1000 961 96 80-120 Silver ug/L 1000 980 98 80-120 MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 4039225 4039226 MS MSD 92669674001 Spike Spike MS MSD MS MSD % Rec Max Parameter Units Result Conc. Conc. Result Result % Rec % Rec Limits RPD RPD Qual Arsenic ug/L ND 1000 1000 939 965 94 97 75-125 3 20 Barium ug/L 104 1000 1000 926 963 82 86 75-125 4 20 Cadmium ug/L ND 1000 1000 920 945 92 95 75-125 3 20 Chromium ug/L ND 1000 1000 873 896 87 90 75-125 3 20 Lead ug/L ND 1000 1000 901 928 90 93 75-125 3 20 Selenium ug/L ND 1000 1000 948 972 95 97 75-125 3 20 Silver ug/L ND 1000 1000 957 974 96 97 75-125 2 20 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 06/13/2023 12:56 PM without the written consent of Pace Analytical Services, LLC. Page 20 of 33 leAnalyiical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 QUALITY CONTROL DATA Project: SWIFT CREEK Pace Project No.: 92669674 QC Batch: 778886 Analysis Method: EPA 6010D QC Batch Method: EPA 3010A Analysis Description: 601 OD ATL Laboratory: Pace Analytical Services - Peachtree Corners, GA Associated Lab Samples: 92669674003, 92669674004, 92669674006, 92669674011 METHOD BLANK: 4040245 Matrix: Water Associated Lab Samples: 92669674003, 92669674004, 92669674006, 92669674011 Blank Reporting Parameter Units Result Limit MDL Analyzed Qualifiers Arsenic ug/L ND 30.0 26.2 06/08/23 20:52 Barium ug/L ND 10.0 1.3 06/08/23 20:52 Cadmium ug/L ND 10.0 2.7 06/08/23 20:52 Chromium ug/L ND 10.0 3.6 06/08/23 20:52 Lead ug/L ND 25.0 8.1 06/08/23 20:52 Selenium ug/L ND 40.0 31.1 06/08/23 20:52 Silver ug/L ND 10.0 4.6 06/08/23 20:52 LABORATORY CONTROL SAMPLE: 4040246 Spike LCS LCS % Rec Parameter Units Conc. Result % Rec Limits Qualifiers Arsenic ug/L 1000 1090 109 80-120 Barium ug/L 1000 1020 102 80-120 Cadmium ug/L 1000 1110 111 80-120 Chromium ug/L 1000 1050 105 80-120 Lead ug/L 1000 1070 107 80-120 Selenium ug/L 1000 1040 104 80-120 Silver ug/L 1000 983 98 80-120 MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 4040247 4040248 MS MSD 92669674003 Spike Spike MS MSD MS MSD % Rec Max Parameter Units Result Conc. Conc. Result Result % Rec % Rec Limits RPD RPD Qual Arsenic ug/L ND 1000 1000 983 1050 98 105 75-125 7 20 Barium ug/L 114 1000 1000 1020 1080 90 97 75-125 6 20 Cadmium ug/L ND 1000 1000 989 1060 99 106 75-125 7 20 Chromium ug/L ND 1000 1000 936 1010 94 101 75-125 7 20 Lead ug/L ND 1000 1000 965 1040 96 103 75-125 8 20 Selenium ug/L ND 1000 1000 934 1000 93 100 75-125 7 20 Silver ug/L ND 1000 1000 884 944 88 94 75-125 7 20 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 06/13/2023 12:56 PM without the written consent of Pace Analytical Services, LLC. Page 21 of 33 leAnalyiical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 QUALITY CONTROL DATA Project: SWIFT CREEK Pace Project No.: 92669674 QC Batch: 779258 Analysis Method: EPA 7470A QC Batch Method: EPA 7470A Analysis Description: 7470 Mercury Laboratory: Pace Analytical Services - Peachtree Corners, GA Associated Lab Samples: 92669674001, 92669674002, 92669674003, 92669674004, 92669674005, 92669674006, 92669674007, 92669674008,92669674009,92669674010,92669674011,92669674012,92669674013,92669674014 METHOD BLANK: 4042245 Matrix: Water Associated Lab Samples: 92669674001, 92669674002, 92669674003, 92669674004, 92669674005, 92669674006, 92669674007, 92669674008,92669674009,92669674010,92669674011,92669674012,92669674013,92669674014 Blank Reporting Parameter Units Result Limit MDL Analyzed Qualifiers Mercury ug/L ND 0.20 0.13 06/08/2315:44 LABORATORY CONTROL SAMPLE: 4042246 Spike LCS LCS % Rec Parameter Units Conc. Result % Rec Limits Qualifiers Mercury ug/L 2.5 2.8 113 80-120 MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 4042247 4042248 MS MSD 92669674001 Spike Spike MS MSD MS MSD % Rec Max Parameter Units Result Conc. Conc. Result Result % Rec % Rec Limits RPD RPD Qual Mercury ug/L ND 2.5 2.5 2.6 2.7 103 108 75-125 5 20 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 06/13/2023 12:56 PM without the written consent of Pace Analytical Services, LLC. Page 22 of 33 leAnalyiical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 QUALITY CONTROL DATA Project: SWIFT CREEK Pace Project No.: 92669674 QC Batch: 777722 Analysis Method: SM 2540C-2015 QC Batch Method: SM 2540C-2015 Analysis Description: 2540C Total Dissolved Solids Laboratory: Pace Analytical Services -Asheville Associated Lab Samples: 92669674001, 92669674002, 92669674003, 92669674004, 92669674005, 92669674006, 92669674007, 92669674008,92669674009,92669674010,92669674011,92669674012,92669674013,92669674014 METHOD BLANK: 4034473 Matrix: Water Associated Lab Samples: 92669674001, 92669674002, 92669674003, 92669674004, 92669674005, 92669674006, 92669674007, 92669674008,92669674009,92669674010,92669674011,92669674012,92669674013,92669674014 Blank Reporting Parameter Units Result Limit MDL Analyzed Qualifiers Total Dissolved Solids mg/L ND 25.0 25.0 05/31/23 11:42 LABORATORY CONTROL SAMPLE: 4034474 Spike LCS LCS % Rec Parameter Units Conc. Result % Rec Limits Qualifiers Total Dissolved Solids mg/L 250 260 104 90-110 SAMPLE DUPLICATE: 4034475 92669674007 Dup Max Parameter Units Result Result RPD RPD Qualifiers Total Dissolved Solids mg/L 249 259 4 25 SAMPLE DUPLICATE: 4034476 92669674010 Dup Max Parameter Units Result Result RPD RPD Qualifiers Total Dissolved Solids mg/L 10700 10200 5 25 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 06/13/2023 12:56 PM without the written consent of Pace Analytical Services, LLC. Page 23 of 33 leAnalyiical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 QUALITY CONTROL DATA Project: SWIFT CREEK Pace Project No.: 92669674 QC Batch: 777681 Analysis Method: EPA 300.0 Rev 2.1 1993 QC Batch Method: EPA 300.0 Rev 2.1 1993 Analysis Description: 300.0 IC Anions Laboratory: Pace Analytical Services -Asheville Associated Lab Samples: 92669674001, 92669674002 METHOD BLANK: 4034209 Matrix: Water Associated Lab Samples: 92669674001, 92669674002 Blank Reporting Parameter Units Result Limit MDL Analyzed Qualifiers Sulfate mg/L ND 1.0 0.50 05/31/23 23:20 LABORATORY CONTROL SAMPLE: 4034210 Spike LCS LCS % Rec Parameter Units Conc. Result % Rec Limits Qualifiers Sulfate mg/L 50 49.7 99 90-110 MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 4034211 4034212 MS MSD 92669629013 Spike Spike MS MSD MS MSD % Rec Max Parameter Units Result Conc. Conc. Result Result % Rec % Rec Limits RPD RPD Qual Sulfate mg/L 0.61J 50 50 51.4 52.2 102 103 90-110 2 10 MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 4034213 4034214 MS MSD 92669629023 Spike Spike MS MSD MS MSD % Rec Max Parameter Units Result Conc. Conc. Result Result % Rec % Rec Limits RPD RPD Qual Sulfate mg/L 4.2 50 50 55.6 56.2 103 104 90-110 1 10 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 06/13/2023 12:56 PM without the written consent of Pace Analytical Services, LLC. Page 24 of 33 leAnalyiical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 QUALITY CONTROL DATA Project: SWIFT CREEK Pace Project No.: 92669674 QC Batch: 777682 Analysis Method: EPA 300.0 Rev 2.1 1993 QC Batch Method: EPA 300.0 Rev 2.1 1993 Analysis Description: 300.0 IC Anions Laboratory: Pace Analytical Services -Asheville Associated Lab Samples: 92669674003, 92669674004, 92669674005, 92669674006, 92669674007, 92669674008, 92669674009, 92669674010,92669674011,92669674012,92669674013,92669674014 METHOD BLANK: 4034215 Matrix: Water Associated Lab Samples: 92669674003, 92669674004, 92669674005, 92669674006, 92669674007, 92669674008, 92669674009, 92669674010,92669674011,92669674012,92669674013,92669674014 Blank Reporting Parameter Units Result Limit MDL Analyzed Qualifiers Sulfate mg/L ND 1.0 0.50 05/31/2315:32 LABORATORY CONTROL SAMPLE: 4034216 Spike LCS LCS % Rec Parameter Units Conc. Result % Rec Limits Qualifiers Sulfate mg/L 50 50.3 101 90-110 MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 4034217 4034218 MS MSD 92669674003 Spike Spike MS MSD MS MSD % Rec Max Parameter Units Result Conc. Conc. Result Result % Rec % Rec Limits RPD RPD Qual Sulfate mg/L ND 50 50 51.6 52.5 103 104 90-110 2 10 MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 4034219 4034220 MS MSD 92669674013 Spike Spike MS MSD MS MSD % Rec Max Parameter Units Result Conc. Conc. Result Result % Rec % Rec Limits RPD RPD Qual Sulfate mg/L 65.2 50 50 49.4 48.9 -32 -33 90-110 1 10 M1 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 06/13/2023 12:56 PM without the written consent of Pace Analytical Services, LLC. Page 25 of 33 leAnalyiical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 QUALIFIERS Project: SWIFT CREEK Pace Project No.: 92669674 DEFINITIONS DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot. ND - Not Detected at or above adjusted reporting limit. TNTC - Too Numerous To Count J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit. MDL -Adjusted Method Detection Limit. PQL - Practical Quantitation Limit. RL - Reporting Limit - The lowest concentration value that meets project requirements for quantitative data with known precision and bias for a specific analyte in a specific matrix. S - Surrogate 1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is a combined concentration. Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values. LCS(D) - Laboratory Control Sample (Duplicate) MS(D) - Matrix Spike (Duplicate) DUP - Sample Duplicate RPD - Relative Percent Difference NC - Not Calculable. SG - Silica Gel - Clean -Up U - Indicates the compound was analyzed for, but not detected. Acid preservation may not be appropriate for 2 Chloroethylvinyl ether. A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPA Method 8260. N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for each analyte is a combined concentration. Reported results are not rounded until the final step prior to reporting. Therefore, calculated parameters that are typically reported as "Total" may vary slightly from the sum of the reported component parameters. Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes. TN -The NELAC Institute. ANALYTE QUALIFIERS D3 Sample was diluted due to the presence of high levels of non -target analytes or other matrix interference. M1 Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery. REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 06/13/2023 12:56 PM without the written consent of Pace Analytical Services, LLC. Page 26 of 33 leAnalyiical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 QUALITY CONTROL DATA CROSS REFERENCE TABLE Project: Pace Project No.: SWIFT CREEK 92669674 Analytical Lab ID Sample ID QC Batch Method QC Batch Analytical Method Batch 92669674001 MW-01 S-WG-20230526 EPA 3010A 778690 EPA 6010D 778828 92669674002 MW-01 D-WG-20230526 EPA 3010A 778690 EPA 6010D 778828 92669674003 MW-02S-WG-20230526 EPA 3010A 778886 EPA 6010D 779071 92669674004 MW-02D-WG-20230526 EPA 3010A 778886 EPA 6010D 779071 92669674005 MW-03-WG-20230526 EPA 3010A 778690 EPA 6010D 778828 92669674006 MW-04-WG-20230526 EPA 3010A 778886 EPA 6010D 779071 92669674007 MW-05RS-WG-20230525 EPA 3010A 778690 EPA 6010D 778828 92669674008 MW-05RD-WG-20230525 EPA 3010A 778690 EPA 6010D 778828 92669674009 MW-06-WG-20230526 EPA 3010A 778690 EPA 6010D 778828 92669674010 MW-07-WG-20230526 EPA 3010A 778690 EPA 6010D 778828 92669674011 MW-08-WG-20230526 EPA 3010A 778886 EPA 6010D 779071 92669674012 SW-01-WG-20230525 EPA 3010A 778690 EPA 6010D 778828 92669674013 SW-02-WG-20230526 EPA 3010A 778690 EPA 6010D 778828 92669674014 FD-01-WG-20230526 EPA 3010A 778690 EPA 6010D 778828 92669674001 MW-01 S-WG-20230526 EPA 7470A 779258 EPA 7470A 779380 92669674002 MW-01 D-WG-20230526 EPA 7470A 779258 EPA 7470A 779380 92669674003 MW-02S-WG-20230526 EPA 7470A 779258 EPA 7470A 779380 92669674004 MW-02D-WG-20230526 EPA 7470A 779258 EPA 7470A 779380 92669674005 MW-03-WG-20230526 EPA 7470A 779258 EPA 7470A 779380 92669674006 MW-04-WG-20230526 EPA 7470A 779258 EPA 7470A 779380 92669674007 MW-05RS-WG-20230525 EPA 7470A 779258 EPA 7470A 779380 92669674008 MW-05RD-WG-20230525 EPA 7470A 779258 EPA 7470A 779380 92669674009 MW-06-WG-20230526 EPA 7470A 779258 EPA 7470A 779380 92669674010 MW-07-WG-20230526 EPA 7470A 779258 EPA 7470A 779380 92669674011 MW-08-WG-20230526 EPA 7470A 779258 EPA 7470A 779380 92669674012 SW-01-WG-20230525 EPA 7470A 779258 EPA 7470A 779380 92669674013 SW-02-WG-20230526 EPA 7470A 779258 EPA 7470A 779380 92669674014 FD-01-WG-20230526 EPA 7470A 779258 EPA 7470A 779380 92669674001 MW-01S-WG-20230526 SM 2540C-2015 777722 92669674002 MW-01D-WG-20230526 SM 2540C-2015 777722 92669674003 MW-02S-WG-20230526 SM 2540C-2015 777722 92669674004 MW-02D-WG-20230526 SM 2540C-2015 777722 92669674005 MW-03-WG-20230526 SM 2540C-2015 777722 92669674006 MW-04-WG-20230526 SM 2540C-2015 777722 92669674007 MW-05RS-WG-20230525 SM 2540C-2015 777722 92669674008 MW-05RD-WG-20230525 SM 2540C-2015 777722 92669674009 MW-06-WG-20230526 SM 2540C-2015 777722 92669674010 MW-07-WG-20230526 SM 2540C-2015 777722 92669674011 MW-08-WG-20230526 SM 2540C-2015 777722 92669674012 SW-01-WG-20230525 SM 2540C-2015 777722 92669674013 SW-02-WG-20230526 SM 2540C-2015 777722 92669674014 FD-01-WG-20230526 SM 2540C-2015 777722 92669674001 MW-01S-WG-20230526 EPA 300.0 Rev 2.1 1993 777681 92669674002 MW-01 D-WG-20230526 EPA 300.0 Rev 2.1 1993 777681 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 06/13/2023 12:56 PM without the written consent of Pace Analytical Services, LLC. Page 27 of 33 leAnalyiical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 QUALITY CONTROL DATA CROSS REFERENCE TABLE Project: SWIFT CREEK Pace Project No.: 92669674 Lab ID Sample ID 92669674003 MW-02S-WG-20230526 92669674004 MW-02D-WG-20230526 92669674005 MW-03-WG-20230526 92669674006 MW-04-WG-20230526 92669674007 MW-05RS-WG-20230525 92669674008 MW-05RD-WG-20230525 92669674009 MW-06-WG-20230526 92669674010 MW-07-WG-20230526 92669674011 MW-08-WG-20230526 92669674012 SW-01-WG-20230525 92669674013 SW-02-WG-20230526 92669674014 FD-01-WG-20230526 Date: 06/13/2023 12:56 PM QC Batch Method QC Batch EPA 300.0 Rev 2.1 1993 777682 EPA 300.0 Rev 2.1 1993 777682 EPA 300.0 Rev 2.1 1993 777682 EPA 300.0 Rev 2.1 1993 777682 EPA 300.0 Rev 2.1 1993 777682 EPA 300.0 Rev 2.1 1993 777682 EPA 300.0 Rev 2.1 1993 777682 EPA 300.0 Rev 2.1 1993 777682 EPA 300.0 Rev 2.1 1993 777682 EPA 300.0 Rev 2.1 1993 777682 EPA 300.0 Rev 2.1 1993 777682 EPA 300.0 Rev 2.1 1993 777682 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Analytical Analytical Method Batch Page 28 of 33 Effective Date: 11/14/2022 Laboratory receiving samples: _J Asheville ❑ Eden❑ Greenwood ❑ Huntersville Raleigh❑ Mechanicsville❑ AtiantaD Kernprcuiilol-1 Sample Condition Client Name. -- UPon Receipt C N C Project i WO# : 92669674 j Courier: ❑Fed Ex ❑UPS ❑ Client ❑OthOthe ❑ Commercial ❑Pace I I I I r: 92659674 Custody Seal Present? Dyes No Seals Intact? Dyes VNo Packing Material; ❑Bubble Wrap OBubble Gags R/None n Other Thermo MAty. - ` IR Gun O Type of Ice: Wet ❑Blue % 1. Correction Factor: �} p Cooler Temp: `__. Add/Subtract ('C) Q/ Cooler Temp Corrected('C• �. 1, USDA Regulated Soil (E A, water sample) Did samples originate in a quarantine zone within the United States: CA, NY, or SC (check maps)? [7Yes nNo Chain of Custody Present? es No [I N/A 1. Samples Arrived within Hold Time? Yes ❑No ❑N/A Z. Short Hold Time Analysis (<72 hr.)? ❑Yes INa ❑N/A 3. Rush Turn Around Time Requested? ❑Yes o []N/A 4. Sufficient Volume? 9'es ❑No ❑NJA 5, Correct Containers Used? CJYes []NO ❑N/R 6. Pace Containers Used? We ❑No ❑N/A Containers Intact? byres [)No ❑N/A 7. Dissolved analysis: Samples Field Filtered? Dyes []No N/A $. Sample Labels Match CPC? ❑No ❑N/A 9 -Includes Date/Time/Ill/Analysis Matrix; VV Headspace in VOA Vials (>5-6mmP LE] Yes ❑No /A 10, Trip Blank Present? ❑Yes ❑No Trip Blank Custody Seals Present? COMMENTS/SAMPLE DISCREPANCY CLIENT NOTIFICATION/RESOLUTION Person contacted: Project Manager SCURF Review: Project Manager SRF Review: Qualtrax ID: 69614 Date/Initials Person Examining Contents: / 1 rr Biological Tissuq Fr en? L� ❑Yes ❑No /A ❑None Temp should be above freezing to 6°C ❑Samplesout of temp criteria. Samples on ice, cooling process has begun Did samples originate from a foreign source (Internationally, including Hawaii and Puerto Rico)? ❑Yes El No Comments/Dlscrepancv: Lot ID Of split containers: Date/Time: Date: Date: Field Data Required? Oyes ❑No Page 1 of 2 Page 29 of 33 scir,u't:,:�s Effective Date: 11/14/2022 *Check mark top half of box if pH and/or dechlorination is verified and Project �WO"" : 926696 r 4 within the acceptance range for preservation samples. PM: MW8 Due Date: 06/13/23 Exceptions: VOA, Coliform, TOC, Oil and Grease, DRO/8015 (water) DOC, LLHg CLIENT: 92—ERM **Bottom half of box is to list number of bottles } ***Check all unpreserved Nitrates for chlorine I E w _ V N N y a D u a E a m W a7 y a 7 a E m a m a z Gl N Q D u a E lf�l N a m a W N c M w _ 7 4 m Y w V 2 R tA O S u ii E v1 o a m V 2 (n O Y a E Z m a m Q M Z °il u « U N a E ,N.� a a m N n 2 G z a E ti v o m v a M. N 0 w E {g 3 a Z 'a a N rx a a a •- C7 a y V = a u S E a m a -I .e l7 a Z W it w a a E tV m [7 ¢ _ N Q a x E ¢ ¢ N I t7 a N V a V O ¢ J E l!7 N m L7 a w V a ? V S Z E a J E cs s Q z Q 9 2 as S q m w O a U N O p O 7 > > J .J + E E E q m ai a t7 W W o > a ¢ V It 00 m 0 > J E Y e+ W o ¢ ` ? y QJ c a a J N r. 0. sc Z �, Y C7 CL a a rn C7 a ra Q ? u a 'n E ,My sn a w ry a z ? a 121 41 in E N N a n of M Ol a O N z M E Ln m a m a ? 'O dl z Q� p� 7 a ¢ u J E N C CS l7 vi a > z G! M c Q J a m l7 o X _ 2 I 3 � I I 4 � 1 ` — 5 \�\VXN 6 I \,X 7 8 pH Adjustment Log for Preserved Samples Sample ID Type of Preservative pH upon receipt Date preservation adjusted Time preservation Amount of Preservative Lot 4 adjusted added Note: Whenever there is a discrepancy affecting North Carolina compliance samples, a copy of this form will he sent to the North Carolina DENR Certification Office (i.e. Out of hold, incorrect preservative, out of temp, incorrect containers. Qualtrax ID: 69614 Page 2of2 Page 30 of 33 Effeetive Date: 05/121202205/12%Zpz2 *Check mark top half of box if pH and/or dechlorination is verified and within the acceptance range for preservation samples. Exceptions: VOA, Coliform, TOC, Oil and Grease, DRO/8015 (water] DOC, LLitg **Bottom half of box is to fist number of bottles ***Check all unpreserved Nitrates for chlorine Q GG Projec Wa# • 9266,96 i7 4 PM: MW�:19) Due Oahe: 06/13/23 CLIENTERM Z A a z a M c ro EL E 1lN� E tf w a m z m N n c m j E u�i M a m z m N a c ro aJ E a N d m �Z.. v v a. C h a L .= .4 0. m V a O i !6 a J ,n ,'vy V aY m rr v a p Z = u ry a E 0 fV M 0. m M u a N u N d J '^ ,M., 6 m M n a = O z _V a J ,�E a m C ? l� '? Z a 2 m a C � M q 4 = N (7 d v n l.J L Q H ra Q m aNr a c a`r p Q J E o U' Q N v a a t7 N = d E Q °' ,y 0 Q V x a O � a J C, N (a Q U u v Z L ¢ J uo� N OT C ? U = �! E Q7 O Q ¢ Y w m y O V7 d FL m r: a Q Q > J J E E g M at ] ? ? v 0 CL M S O 1J J ppE V m a ? V S p } E cj Ml7 a z x = 0. ] v (1 N '° M } m z •„ M W ?; ul J E r4 � N A i z u N 61 ;; ut E V) M LcoQ M v IA iv = 61 ° �' J E M Z a Z a a C Q E E 0 z m C .� J N 7 o a N a a O 1 ` 1 - 2 3 4 5 6 7 8 9 10 II 12 PH Adjustment Log for Preserved Samples Sample ID Type of Preservative pH upon receipt Date preservation adjusted Time preservation Amount of Preservative lot # adjusted added —I.., 111— -.c, I„V,�" d uix.icpdnLy arrecung Nortn l.aroiina CDmF Out of hold, incorrect preservative, out of temp, incorrect containers. Qualtrax ID: 69614 a copy of this form will be sent to the North Carolina DENRCertifkation Office (i.e. Page 2 of 2 Page 31 of 33 o o o a o w o b b b m 3 w m X7 O [Nil II y p 0 m o g m m13 o Gi G'7Gi l] G�i b O�D Z m Z m Nm cb a 3 w, Cn o N r 77 w �gagolrvA �r�g 91. n o a M m 6 6 O O u n n�$a� o Y vo '. o S, m e m o 0 # v m a o G W w Q 9FL 3 n � MATRIX CODE {see valid codes to left] m 0 � SAMPLETYPE (G=GRAB C=COMP( E m c. l M F �y D D 7 O y m 22 z g m fp m m t;n ' V 61 m O m z n i 3 g 0 m A SAMPLE TEMP AT COLLECTION m T N ryr F, S OF CONTAINERS O !1 y v y o n n 1 Unpreserved a m m m 3 O N m 0 o o On H2SO4 m o m v c m r 0 il M HNO3 -u # m m 3 y HCI m w p N r NaOH n^+ N a O n 0 b o n Na2S203 y m n m R C Methanol y r�+n m Other Analyses Test YIN a P x x x x x x x x x ix x x Tota 1(6011717470) w O x x x x x x x X x x x x Sulfale by 31 n $ m rP x x X x X x X X X x x x Total Dissolved Solids (TOS n p y a � � w c ❑ 0 a cr C� r C 3 NJ 1, N l� N Vl J w � m � . TEMP in C m 3 Residual Chlorine (YIN) Received on zIce �S Sealed \ Cooler J C' o Y!N w Samples Intact -:z, ti (YIN) Page 32 of 33 a e o ? n n o S fJ N an d m z W m .�. °z chi 3 m y m 2 G m q n n Z Z 0 tin n ( J � m 3 N W � Cb c 0 3 9 ip m r 3 3 co m rn m ty ooEE >< x r m m su N a 3 a M C, g m N a a L O m�U m a n S G # zO Q a y m Z.MATRIX CO➢F (see vaiid codes to left) 0 0 SAMPLETYPE (G=GRAB C=COMP) rn a. x F m n N w m Fq y m x 3 D 9 Ll A Z Z r A m C � a m p ^I M, RZ N 1t o rl "Ici m m m ri 1 0 m Z) CD z a n m N n + o r m m z "� J m a 6 Q C SAMPLE TEMP AT COLLECTION m 00FCONTAINERS C? pa 0 d d a n 3 to 3 o m `a C m >< Unpreserved a O y m n o v rn' H2SO4 w n m z m r- O � o HNO3 m ❑ HCi cn D r ° a NaOH O n D Na2S203 o C w y a ffl �l Q Methanol : Z Mot f y r s Other y_ \ Analyses Tes! YIN n m x x x x m Tola RCRAB (60100470} m x < :D mx � x x x Sulfate by 300-0 ` x X x x Total Dissolved Solids (TOS o p N w a c ❑ it 0 m l V O n O C CD I 1! a CD G 1 $ 0 C rt a n N � a TEMP in C m Residual Chlorine (Y!N) y m d e y Recaived on o a Ire may( 4 z n (YIN) n u5 (Fn C7 (i y Sealed \ n N S ° Cooler o � `� O Y!N m Samz \ i I Intact (Y!N ( N Page 33 of 33 WATER QUALITY MONITORING AND CORRECTIVE ACTION EFFECTIVENESS REPORT — MAY 2023 APPENDIX D MANN KENDALL ANALYSIS REPORT May 2023 www.erm.com Version: 1.0 Project No.: 0397281 Client: ReUse Technology Trend Analysis Report September 26, 2023 1. USER WARNINGS Mann Kendall analysis is a commonly used statistical tool for assessing changes in concentration over time. Like most statistical analyses, Mann Kendall makes some assumptions about the data being analyzed. If these assumptions are not met, the results of the Mann Kendall may be wrong or misleading. The final section of this memo discusses scenarios that will likely require the input of a qualified statistician to ensure that the results of the trend test are appropriate for your data. A careful review of the results tables and figures can help identify any anomalies in the data that merit further assessment. Selection of an appropriate a: Statistical convention typically uses an a equal to 0.05 which sets the probability of drawing a false positive conclusion (saying there is a trend when one does not exist) in the statistical analysis at 5 percent. a can be adjusted up or down to meet specific programmatic needs or to meet data quality objectives, but changes in a should be made a priori and should not be changed in an attempt to obtain a more `favorable' result. Often decreasing a will result in a reduction in the probability of finding a false negative result (saying there is no trend when one actually exists). 2. INTRODUCTION This report covers the REUSE-SWIFTCREEK data quality, descriptive statistics, and trend analysis. • The data file used in this report (ARII_MannKendall_202309.xlsx) consists of samples from June 2018 to May 2023. • The analysis includes 13 unique wells and 3 analytes. • Descriptive statistics and trend analysis are run for every unique combination of: sys_loc_code, chemical —name (referred to as Group from hereon). There are 39 unique Groups. • Trends were conducted at 95% confidence with minimum data requirements of at least 4 detected values and 50% detection frequency for each Group. 3. DATA HANDLING This section describes the data included in this evaluation, the handling of field duplicates, data qualifiers, censored values, and handling of anomalous data points. 3.1 Field Duplicates Only one set of primary and field duplicate measurements were retained for statistical evaluation. While field duplicates can provide useful information on the sampling methodology, the duplicates are almost always statistically dependant on the parent sample (USEPA 2009, Page 6-27). Although complicated methods can be used to allow the inclusion of both values in statistical tests, simpler strategies involve keeping the maximum value between the two samples, randomly selecting one of the two samples, or removing the duplicates altogether (USEPA 2009, Page 6-28). Unless otherwise noted, field duplicates were removed prior to all analysis. The business of sustainability 3.2 Data Qualifiers Data was qualified by a data validator to ensure the quality of the reported results. Consistent with lab conventions, J-flagged values were estimated quantities. Guidance allows for J-flagged values to be used with reported concentrations but cautions against making regulatory decision based on these values (USEPA 2014). Measurements that have an R-flag had their concentration rejected; the result is rejected due to serious deficiencies in meeting quality control criteria and the analyte may or may not be present in the sample (USEPA 2014). The data quality review found the results to be valid, reliable and useable for decision making purposes with the listed qualifiers. No analytical results were rejected. 3.3 Non -Detects Non -detects (NDs) commonly reported in water monitoring are statistically known as "left censored" measurements because the concentration of any ND can only be estimated. NDs are assumed to fall between zero and the reporting limit (USEPA 2009). USEPA (2015) offers a number of options for handling non -detected values, including Kaplan -Meier estimators, Regression on Order Statistics, and replacement with surrogate values. The appropriate handling of NDs depends on the statistical test being used and will be discussed in the following sections as appropriate. Multiple reporting limits were found for several Groups. Of the 39 unique Groups, 16 of them had different reporting limits. Maximum reporting limits were found to be greater than detected values for 2 of the Groups. 4. DESCRIPTIVE STATISTICS Descriptive statistics were calculated for all Groups and can be found in Table 1. Non -detects were substituted with a value of half the reporting limit for calculations. The descriptive statistics highlight a number of relevant characteristics about the datasets, including: • There are a total of 39 Groups. • 18 Groups have detection rates greater than or equal to 50 percent. • 18 Groups have 100 percent non -detects. • 14 Groups have 100 percent detects. • 10 Groups follow a normal distribution (using Shapiro-Wilks Normality Test) and 0 Groups follow a log -normal distribution. The remaining 29 Groups have no discernible distribution. 5. TESTING FOR TRENDS Trend tests are a commonly used tool to assess the effectiveness of remediation efforts. By examining whether concentrations are increasing, decreasing, or not significant, trend tests provide one line of evidence about the directional change in concentrations over time. 5.1 Trend Testing Approach A Mann Kendall test was used to detect changes in concentrations over time. The Mann Kendall Test is a non -parametric method that tests the following null hypothesis (USEPA 2009): Null Hypothesis (Ho): No monotonic trend exists. The business of sustainability Alternative Hypothesis (Ha): A monotonic trend exists. A monotonic upward (downward) trend means that the variable consistently increases (decreases) through time, but the trend may or may not be linear. The Mann -Kendall test is based on the premise that the lack of monotonic trend should correspond to a time series plot fluctuating randomly about a constant median with no visually apparent upward or downward pattern (Helsel and Hirsch 2002). Significantly increasing or decreasing trends (r) are identified at a significant level (a) of less than or equal to 0.05. TZ can be used like an RZ value to estimate how much variance in y is explained by x (i.e., what proportion of the variability in concentration is explained by time). USEPA 2009 guidance and/or Helsel and Hirsch (2002) may be consulted for further details for the Mann -Kendall test. With the specified 95% confidence, significantly increasing or decreasing trends are identified with p-values as follows: Tau p-value Positive p <= 0.05 Negative p <= 0.05 Positive or Negative p > 0.05 5.2 Data Constraints Conclusion Trend Ho Rejected Increasing Ho Rejected Decreasing Ho Accepted Not Significant Guidance recommends that trend tests be performed with at least eight detected data points to ensure a reasonable amount of confidence in results (USEPA 2009, p. 17-24). However, it is mathematically possible to carry out the test with five detected samples. The consequences of using the minimum sample size is that there is a greater chance of concluding that there is no trend when, in fact there is a trend (USEPA 2009). If a dataset is comprised of more than 50 percent ND values, the loss of information is considered too great to support a reliable analysis of trends, so no Mann Kendall test was formed. Consistent with guidance, in cases where FOD was greater than 50 percent, NDs were substituted with a constant that is below the lowest detected value (Helsel and Hirsch 2002). This ensures that all NDs are "tied" in the Mann Kendall and that changing reporting limits have limited influence on whether trends are detected (USEPA 2009, Helsel and Hirsch 2002). NDs were chosen to be substituted with a value of zero for the trend analysis. 5.3 Results Trend tests were calculated with 95% confidence for all Groups that met the minimum data requirements of at least 4 detected values and 50% detection frequency. A full report of the Mann Kendall trend test results and timeseries plots can be found in Table 2. The following summarize the results of the trend analysis: • There are a total of 39 Groups in the dataset. • 16 Groups meet the data requirements of the trend test. Of those: • 2 Groups had a significant increasing trend, • 3 Groups had a significant decreasing trend, • 11 Groups had no significant trend. Time series scatterplots are provided in Figure 1 for each Group. Detection limits for each sample are also plotted for an easy visual assessment of changing detection limits over time. For Groups with significant trend, a visual of the linear fit is provided on the graph. The Mann Kendall is a correlation test and does not provide an estimate of the slope and y-intercept. A parametric test was used to provide a visual guide only. The business of sustainability ERM 6. SPECIAL CONSIDERATIONS Like most statistical analyses, Mann Kendall makes some assumptions about the data being analyzed including: • Observations or data obtained over time are independent. • The observations obtained over time are representative of the true conditions at sampling times. • The sample collection, handling, and measurement methods provide unbiased and representative observations of the underlying populations over time. There is no requirement that the measurements be normally distributed. The Mann Kendall test can be computed if there are missing values and varying detection limits, but the performance of the test will be adversely affected by such events. The assumption of independence requires that the time between samples be sufficiently large so that there is no correlation between measurements collected at different times. The Mann Kendall test does not assume that the underlying relationship is linear. However, in cases where the data are clearly curvilinear, it may be more appropriate to consult with a statistician to employ different statistical techniques that more accurately characterize the changes in concentration over time. Special consideration should be given to dataset with clear seasonality and/or NDs. These are considered in the following sections. 6.1 Seasonality Seasonal changes in precipitation and temperature can cause cyclical fluctuations in groundwater concentrations. These seasonal fluctuations functionally add `noise' to the data. This type of noise is called serial dependence and can make it difficult to determine trends in the data because of a long-term persistent pattern (like seasonality) or whether it represents a true, underlying change. USEPA Guidance (2009) strongly recommends accounting for seasonality when performing linear trends in hydrologic data. Seasonality has not been explicitly handled in the data described herein. 6.2 Non -Detects and Detection Limits Non -detects (NDs) commonly reported in water monitoring are statistically known as "left censored" measurements because the concentration of any non -detect either cannot be estimated or is not reported directly. Rather, it is known or assumed only to fall within a certain range of concentration values (USEPA 2009 p. 15-1). With higher detection limits, that uncertainty is greater because the true value lies somewhere in a larger range of possible values. USEPA (2006) notes that no general procedures exist for the statistical analyses of censored datasets. If a dataset is comprised of more than 50 percent non -detected (ND) values, guidance cautions the user when interpreting the results of statistical tests, especially for relatively small datasets (USEPA 2009). In the context of Mann Kendall, there is general agreement that substituting a constant below the lowest detected value is the best solution for handling non -detected values. When detection rates are below 85 percent, however, this simple substitution method may lead to bias in the correlation estimates. Visually reviewing the data is a key step in interpreting the appropriateness of the statistical results. The time series plots have been generated using the detection limit for non -detects so that detection rates and multiple detection limits can be visualized. Additional statistical testing may be needed to address datasets with low detection rates or elevated detection limits. The business of sustainability 7. REFERENCES Helsel and Hirsch. 2002. Statistical Methods in Water Resources. Chapter A3. U.S. Department of the Interior, U.S. Geological Survey. USEPA. 2006. Data Quality Assessment: Statistical Methods for Practitioners. EPA QA/G-9S. Office of Environmental Information. Washington, DC. USEPA. 2009. Statistical Analysis of Groundwater Monitoring Data at RCRA Facilities. Unified Guidance. EPA/530/R/09/007. Office of Resource Conservation and Recovery. Washington, D.C. USEPA. 2014. National Functional Guidelines for Superfund Organic Methods Data Review. USEPA 540- R-014-002. OSWER 9355.0-132. August. USEPA. 2015. ProUCL Version 5.1.002 Technical Guide: Statistical Software for Environmental Applications for Data Sets with and without Nondetect Observations. Publication EPA/600/R-07/041, October. 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