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HomeMy WebLinkAboutNC0022406_IAP_Startup&EffectivenessMonitoringReport_201807243191 Pine Hall Road Walnut Cove, NC 27052 336-445-0610 July 20, 2018 State of North Carolina Department of Environmental Quality Division of Water Resources Winston Salem Regional Office Attn: Shuying Wang, P.G., Hydrogeologist 450 Hanes Mill Road, Suite 300 Winston-Salem, NC 27105 Subject: : Interim Action Plan 2018 Startup and Effectiveness Monitoring Report Duke Energy - Belews Creek Steam Station Belews Creek, NC 27009 Dear Ms. Wang: Attached you will find the Interim Action Plan 2018 Startup and Effectiveness Monitoring Report for the Accelerated Remediation Groundwater Extraction System at the Belews Creek Steam Station. This report was generated by SynTerra on behalf of Duke Energy Carolinas, LLC. If you have any questions on the enclosed information, please contact me at (336) 445-0610 or Melonie.Martin@duke-energy.com. Respectfully submitted, Melonie Martin Lead Environmental Specialist Waste and Groundwater Programs Attachment: Interim Action Plan 2018 Startup and Effectiveness Monitoring Report cc (via email) : Steve Lanter (NCDEQ) Sherri Knight (NCDEQ) Jeff Gateley (Duke) Craig Eady (SynTerra) 2018 Startup and Effectiveness Monitoring Report July 17, 2018 Belews Creek Steam Station SynTerra Page i P:\Duke Energy Carolinas\20. BELEWS CREEK\14.CCP Accelerated Remediation GW Extraction System\IAP Effectiveness Monitoring Report\FINAL IAP Effectiveness Monitoring Report 2018.docx TABLE OF CONTENTS SECTION PAGE 1.0 INTRODUCTION ............................................................................................................ 1 1.1 Objective ........................................................................................................................ 2 1.2 Model Simulation ......................................................................................................... 3 1.3 Installation and Startup ............................................................................................... 4 2.0 SYSTEM EFFECTIVENESS ........................................................................................... 5 2.1 Hydraulic Monitoring ................................................................................................. 5 2.1.1 Groundwater Pumping Rate ................................................................................ 5 2.1.2 Water Level Evaluations ....................................................................................... 5 2.2 Analytical Monitoring ................................................................................................. 8 2.2.1 Baseline Results ...................................................................................................... 8 2.2.2 Post Startup Results ............................................................................................... 8 3.0 OPERATIONS AND MAINTENANCE .................................................................... 11 4.0 CONCLUSIONS AND RECOMMENDATIONS .................................................... 12 2018 Startup and Effectiveness Monitoring Report July 17, 2018 Belews Creek Steam Station SynTerra Page ii P:\Duke Energy Carolinas\20. BELEWS CREEK\14.CCP Accelerated Remediation GW Extraction System\IAP Effectiveness Monitoring Report\FINAL IAP Effectiveness Monitoring Report 2018.docx LIST OF FIGURES Figure 1-1 Site Location Map Figure 1-2 Site Layout at the Extraction System Figure 1-3 Simulated Drawdown - Ten Extraction Wells - Transition Zone (Layer 6) Figure 1-4 Extraction Well As Built Figure 2-1 Deep Water Level Map (October 2017) Figure 2-2 Deep Water Level Map (April 2018) Figure 2-3 Drawdown Contour Map Figure 2-4 Water Level Monitoring CCR-2S, CCR-2D and GWA-27D Figure 2-5 Water Level Monitoring EXOB-1, EXOB-2 and GWA-21D Figure 2-6 Water Level Monitoring GWA-20SA, GWA-20D and GWA-11 Figure 2-7 Boron Time Series LIST OF TABLES Table 2-1 October 2017 and April 2018 Water Level Measurements Table 2-2 CAMA Baseline and Post Startup Groundwater Analytical Results Table 2-3 CCR Baseline Groundwater Analytical Results Table 3-1 Ash Basin Groundwater Extraction Well System Data LIST OF APPENDICES Appendix A Table 1 Well Construction and Telemetry System Information Well Construction Records Well System Boring Logs 2018 Startup and Effectiveness Monitoring Report July 17, 2018 Belews Creek Steam Station SynTerra Page 1 P:\Duke Energy Carolinas\20. BELEWS CREEK\14.CCP Accelerated Remediation GW Extraction System\IAP Effectiveness Monitoring Report\FINAL IAP Effectiveness Monitoring Report 2018.docx 1.0 INTRODUCTION Duke Energy Carolinas, LLC (Duke Energy), owns and operates the Belews Creek Steam Station (BCSS), located on Belews Lake in Stokes County, North Carolina (Figure 1-1). BCSS, which began operation in 1974, currently operates two coal-fired units. The Site, including the station and supporting facilities, is approximately 700 acres and lies within a 6,100-acre parcel owned by Duke Energy. Coal combustion residuals (CCR) and other liquid discharges from the coal combustion process have been disposed in the ash basin since its construction. In 1983, BCSS converted to dry handling of fly ash with disposal in on-site landfills. Since that time, the bottom ash was sluiced to the ash basin and fly ash was sluiced to the ash basin during plant start-up and maintenance situations. Beginning in May 2018, a dry bottom ash system has been commissioned so that no bottom ash is sluiced to the basin. All ash conveyance piping, both fly ash and bottom ash, to the basin will be decommissioned in Fall 2018. Water discharge from the ash basin is permitted by the North Carolina Department of Environmental Quality (NCDEQ) Division of Water Resources (DWR) under the National Pollutant Discharge Elimination System (NPDES) Permit NC0024406. The permitted outfall is located north of the site at the Dan River. A Settlement Agreement between NCDEQ DWR and Duke Energy signed on September 29, 2015, requires accelerated remediation to be implemented at sites that demonstrate off-Site groundwater impacts. Historical and CSA assessment information indicates the potential for off-site groundwater impact northwest of the ash basin in the area of the 2.23-acre parcel (hereafter Parcel A) not owned by Duke Energy. Figure 1-2 illustrates Parcel A with pertinent features and shows the general area for accelerated remediation using a groundwater extraction system. As required by NCDEQ DWR, Duke Energy submitted draft Basis of Design (BOD) reports for review and comments in 2016 and 2017. A 100 percent BOD report was submitted to NCDEQ DWR on September 1, 2017. In a letter with comments dated October 31, 2017, NCDEQ DWR granted permission for Duke Energy to proceed with installation of the extraction well network. Duke Energy provided responses to NCDEQ DWR comments along with report and figure revisions in a revised Basis of Design Report which was submitted to NCDEQ DWR on December 14, 2017. The Belews Creek Steam Station 100% Basis of Design was approved by NCDEQ in a letter from Zimmerman (NCDEQ DWR) to Sullivan (Duke Energy) on February 01, 2018. Six considerations prior to implementation included: • Care should be taken to ensure good quality construction for all new well installations. 2018 Startup and Effectiveness Monitoring Report July 17, 2018 Belews Creek Steam Station SynTerra Page 2 P:\Duke Energy Carolinas\20. BELEWS CREEK\14.CCP Accelerated Remediation GW Extraction System\IAP Effectiveness Monitoring Report\FINAL IAP Effectiveness Monitoring Report 2018.docx • Water quality samples should be collected after installation of new wells and prior to initiating system operations for all wells included in the interim action extraction array network to provide a baseline of site conditions for evaluating system effectiveness. • Water quality samples collected should be free of turbidity at levels that would interfere with chemical analysis, and not show signs of grout contamination. • Monitoring well clusters GWA-11, GWA-21, and GWA-27 should be added to the well network for recording water levels to support evaluation of system effectiveness. • Section 8.1 System Performance Metrics states that water levels will be measured by manual means or by use of pressure transducers. Collection of water-level measurements at widely-spaced time intervals may not allow for an effective evaluation of system operation. The use of pressure transducers to obtain water-level measurements will allow a refined understanding of pumping influence on the transition zone considering site conditions that may develop as the result of the interim action, such as dewatering of fractures. • The revised Belews Creek BOD Report states that extraction wells will be monitored on a weekly basis after the initial startup period, which is not defined. Afterward, verification of water levels in extraction wells will be conducted monthly with quarterly measurements in observation and monitoring wells according to Table 8-1. Duke Energy should consider that the extraction well system may cycle on and off due to dewatering of fractures at regular intervals; therefore, collection of water-level measurements at more closely spaced, regular intervals is strongly suggested. With this in mind, using pressure transducers to collect continuous data readings would provide a more advantageous means to evaluate system operations. Conditions for approval were evaluated and implemented prior to initializing system operation. 1.1 Objective Constituents associated with coal ash pore water have been identified within groundwater in the shallow (saprolite) and deep (transition zone between saprolite and competent bedrock) flow layers between the ash basin and Parcel A and downgradient of Parcel A. The area of highest concentration is immediately west-northwest of the ash basin extending toward Middleton Loop Road and Parcel A. Groundwater flow in this area is from the basin to the northwest. Groundwater monitoring wells delineating concentrations in this area are located on Duke Energy property; however, no groundwater monitoring wells are present on Parcel A. Groundwater data downgradient of the Parcel A indicate exceedances of 2L 2018 Startup and Effectiveness Monitoring Report July 17, 2018 Belews Creek Steam Station SynTerra Page 3 P:\Duke Energy Carolinas\20. BELEWS CREEK\14.CCP Accelerated Remediation GW Extraction System\IAP Effectiveness Monitoring Report\FINAL IAP Effectiveness Monitoring Report 2018.docx standards, IMACs or background (whichever is greater) for beryllium, boron, chloride, chromium, cobalt, iron, manganese, selenium, TDS, thallium, and vanadium. A summary of baseline conditions in this area is presented in Section 2.2. Consistent with the Settlement Agreement, the primary objective of the groundwater extraction system at the northwest corner of the ash basin is to reduce groundwater migration of source area constituents towards Parcel A and achieve a hydraulic boundary control proximal to the extraction well network. Constituents observed in groundwater greater than the 2L standards, IMACs or background (whichever is greater) beyond the area of influence or present in another media are being evaluated in accordance with CAMA and 15 NCAC 02L.0106 and are discussed in Comprehensive Site Assessment (CSA) and Corrective Action Plan (CAP) documents. 1.2 Model Simulation A Groundwater Flow and Transport Modeling Report was developed by HDR, Inc. (HDR) and submitted with the CAP Part 1 (December 8, 2015) and the CAP Part 2 (March 4, 2016). The HDR model was updated by SynTerra with information obtained from the installation of data gap wells and pilot aquifer pumping tests with the domain expanded to include the area incorporating Parcel A. The updated groundwater flow and transport model was further refined to include the planned remediation system to predict potential performance of the system. The focus of the groundwater model was to determine optimum extraction well locations, sustainable extraction well flow rates and simulation of the remediation effects using boron as the primary constituent of concern. The flow and transport model results were initially provided in the 60% Basis of Design report and subsequent revised submittals. Groundwater modeling simulated drawdown within the transition zone (model layer 6) for an initial five extraction well scenario which predicted that pumping from the initial five extraction wells would lower groundwater levels by more than 1 foot in the transition zone, causing the water table to drop within the surficial zone in much of the area. However, the model indicated that a five well extraction system is not sufficiently robust to provide adequate hydrologic impact. Subsequently, a ten extraction well scenario with closer well spacing was simulated. The model predicted that ten extraction wells within the transition zone (model layer 6) would lower groundwater levels more than five to ten feet along the extraction system axis, with hydraulic impacts to Parcel A. Figure 1-3 presents simulated drawdown from the flow and transport model in the vicinity of Parcel A within the transition zone. 2018 Startup and Effectiveness Monitoring Report July 17, 2018 Belews Creek Steam Station SynTerra Page 4 P:\Duke Energy Carolinas\20. BELEWS CREEK\14.CCP Accelerated Remediation GW Extraction System\IAP Effectiveness Monitoring Report\FINAL IAP Effectiveness Monitoring Report 2018.docx 1.3 Installation and Startup Based on pumping test information and groundwater modeling scenarios, ten extraction wells (EX-1 through EX-10) were installed between the ash basin and Parcel A, with a design well spacing on an average of 85 feet. The ten extraction wells and the associated piping and control systems were installed between Middleton Loop Road and the ash basin in accordance with the specifications described in the 100% BOD Report. The system as-built layout is provided as Figure 1-4. Appendix A includes extraction well construction details, including well construction and boring logs and a well construction summary table. The installation included well vaults which contain the individual well pump controllers and flow meters as well as sampling ports. The other primary element of the system is the header piping and discharge line to the ash basin. This discharge line also includes a flow meter for system monitoring. The specific details for the system elements are included in the 100% BOD Report. System installation was completed at the end of November 2017. Start-up began over a period of several weeks in November and December 2017 as final adjustments were made. Complete system start-up commenced on March 14, 2018. 2018 Startup and Effectiveness Monitoring Report July 17, 2018 Belews Creek Steam Station SynTerra Page 5 P:\Duke Energy Carolinas\20. BELEWS CREEK\14.CCP Accelerated Remediation GW Extraction System\IAP Effectiveness Monitoring Report\FINAL IAP Effectiveness Monitoring Report 2018.docx 2.0 SYSTEM EFFECTIVENESS 2.1 Hydraulic Monitoring 2.1.1 Groundwater Pumping Rate The extraction well pumps are equipped with variable frequency drives (VFD) that allows operation of the pumps at low flow rates, if necessary, while not significantly sacrificing efficiency or subjecting the pumps to unnecessary working pressure. The control system includes water level and flow monitoring feedback to the VFD providing effective operation of the pumps. The system has been programmed to maintain target water level depths for each well, ranging from 19.4 (EX-3) to 30.6 (EX-9 and EX-10) feet below the top of well casing, which reduces the water level within the well to 10 feet or greater below the observed static water level. These depths were selected based on pumping test information and groundwater modeling scenarios. As of May 28, 2018, approximately 3,172,030 gallons of groundwater have been removed since system startup. After initial startup, pumping rates appear to be stabilizing at approximately 26.7 gallons per minute for the total system. 2.1.2 Water Level Evaluations Water level data from transducers installed in extraction wells is continuously monitored and was retrieved from HydroVu Data Services (www.hydrovu.com). All extraction wells show evidence of drawdown. To monitor the effectiveness of hydraulic control downgradient of the extraction system, data logging pressure transducers were installed in select monitoring wells to record hourly water level measurements prior to system startup for baseline conditions and afterwards following system startup. The effectiveness monitoring wells include CCR-2S/D, GWA-11D, GWA-20SA/D, GWA-21D, GWA-27D, EXOB-1 and EXOB -2. In addition, manual water level measurements were collected periodically, including during CAMA IMP quarterly sampling, to correlate water level data to pressure transducer information. Transition zone (deep) water level maps from October 2017 (prior to system startup) and April 2018 (after system startup) are included as Figures 2-1 and Figure 2-2, respectively. Table 2-1 summarizes 24 hour water level measurements gauged during October 2017 and April 2018 sample events. On a site-wide scale, an area surrounding the extraction system does not show 2018 Startup and Effectiveness Monitoring Report July 17, 2018 Belews Creek Steam Station SynTerra Page 6 P:\Duke Energy Carolinas\20. BELEWS CREEK\14.CCP Accelerated Remediation GW Extraction System\IAP Effectiveness Monitoring Report\FINAL IAP Effectiveness Monitoring Report 2018.docx reduced water levels between October 2017 and April 2018. Rain gage data from the Belews Creek, NC weather station (825 ft msl; 36.28527, -80.06694) located onsite was used to evaluate rainfall influence on water level data. Compared to the relatively dry season preceding system startup on March 14th, 2018, increased spring rainfall is observed during March, April and May with monthly total rainfall in inches of 3.46, 4.62 and 5.13, respectively. Observation of rainfall and water level data indicates that groundwater water levels between October 2017 and April 2018 are influenced by seasonal precipitation. The primary flow system targeted by the groundwater extraction system is the transition zone, consisting of a saprolite and weathered fractured rock matrix. Observed drawdown from the initial startup period in surrounding monitoring wells, CCR-2D, GWA-20SA/D, GWA-27D, EXOB-1 and EXOB-2, demonstrates the variable influence of pumping due to the heterogeneous nature of the flow system. Drawdown is best observed during and after the startup period where precipitation events less than 0.5 inches were measured where the extraction system appeared to be most effective operating under baseline conditions. Figure 2-3 provides a conceptual view of radius of influence as depicted by drawdown from taking the difference of water levels prior to the system startup, recorded on March 2, 2018, and water levels recorded one week after the system began operation, recorded on March 21, 2018. Total groundwater removed in gallons as of March 19, 2018 is shown next to each extraction well. Drawdown near 0.5 feet or greater is observed to the west at EXOB-1 and EXOB-2, approximately 50 feet and 30 feet from the nearest extraction well, respectively. Downgradient of the system, drawdown becomes less pronounced. Figures 2-4 through 2-6 show results of water level readings monitored by pressure transducers installed in the effectiveness monitoring wells. During the startup period, effects of groundwater extraction are noted in wells: CCR-2D, GWA-20SA, GWA-20D, EXOB-1 and EXOB-2. A smoothed trend line, using the average of 20 data points, highlights significant observed drawdown during the startup period (Figures 2-4 through 2-6). Once stable conditions are achieved, information from the pumping well with observed heads in surrounding wells can be used to update the flow and transport model. 2018 Startup and Effectiveness Monitoring Report July 17, 2018 Belews Creek Steam Station SynTerra Page 7 P:\Duke Energy Carolinas\20. BELEWS CREEK\14.CCP Accelerated Remediation GW Extraction System\IAP Effectiveness Monitoring Report\FINAL IAP Effectiveness Monitoring Report 2018.docx Additional observations from water level time series plots include: • Water level measurements at all effectiveness monitoring wells indicate a similar degree of response to rainfall influences. Most notably, precipitation events greater than 1 inch on April 15, 2018, April 24, 2018 and a sustained rainfall period between May 16-18, 2018 significantly elevated groundwater water levels and masked drawdown effects. Highlighted periods of monitoring and observation well water level responses to rainfall are noted on Figures 2-4 through 2-6. These responses demonstrate a strong connection between groundwater and rainfall infiltration. • During prolonged dry periods or infrequent precipitation events of less than 0.5 inches, water levels appear to show drawdown effects in the effectiveness monitoring wells. The period between March 26, 2018 and April 14, 2018 shows significant declining water levels at CCR-2S, GWA- 20SA and EXOB-2. Between April 19, 2018 and April 22, 2018, wells CCR- 2S/D, GWA-27D and EXOB-2 show sustained, and significantly reduced water levels. Observed reduced water levels during these periods are below baseline water levels prior to system startup on March 14th, 2018 and are likely a response to the effectiveness of the operating extraction system without influence from rainfall. Wells EXOB-1, GWA-20SA/D show a similar but less significant response between April 19, 2018 and April 22, 2018. • An increased rate of drawdown response in extraction observation wells EXOB-1 and EXOB-2 during the startup period demonstrates a strong connection between observation wells and extraction wells. EXOB-1 shows a strong connection to EX-4 observed through weekly inspection maintenance event that occurred on March 26, 2018. EX-4 was shut down to replace a non-responsive pump controller transducer (Figure 2-5). • During May 21-25, 2018, wells CCR-2S/2D, GWA-20SA and EXOB-2 show a rapid decline in water levels following a sustained precipitation event. This response is likely due to groundwater equilibration back to natural water levels (Figures 2-4 through 2-6). However, increased weekly flow rates are observed at some wells during and after precipitation events greater than 1 inch, indicating that the system is adjusting its performance to an increase in rainfall infiltration. 2018 Startup and Effectiveness Monitoring Report July 17, 2018 Belews Creek Steam Station SynTerra Page 8 P:\Duke Energy Carolinas\20. BELEWS CREEK\14.CCP Accelerated Remediation GW Extraction System\IAP Effectiveness Monitoring Report\FINAL IAP Effectiveness Monitoring Report 2018.docx Additional pressure transducers will be acquired to monitor water levels across the Belews Creek Steam Station for other CAMA site assessment activities. These transducers will be used to better understand dynamic conditions across the site including basin closure activities. A site-wide view of water level trends will be included in future evaluations of system performance during time periods that capture significant site changes. 2.2 Analytical Monitoring 2.2.1 Baseline Results Comprehensive analytical summary tables for extraction wells and effectiveness monitoring wells are presented in Table 2-2 and Table 2-3. Groundwater samples for extraction wells EX-1 through EX-10 were collected one week after extraction system startup on March 21, 2018. The extraction system samples were collected from each extraction well sample port when the pumps were operating and as soon as practical following system startup. Results show that concentrations of boron were detected greater than the 2L standard (700 µg/L) in all extraction wells with the exception EX-8. Other constituents detected greater than 2L, IMAC or background (whichever is greater) from baseline extraction well analytical results include antimony, beryllium, chloride, cobalt, iron, manganese, TDS, thallium and vanadium Observation wells EXOB-1 and EXOB-2 were sampled twice in December 2017 prior to system startup; and observation wells and downgradient effectiveness monitoring wells were sampled during the IMP (Interim Monitoring Program) quarterly sample event in Q1 January 2018. These samples are considered baseline results representing groundwater quality prior to system operation. Groundwater analytical results show that concentrations of boron were detected greater than the 2L standard (700 µg/L) in observation wells EXOB-1 and EXOB- 2; and in effectiveness monitoring wells CCR-2S/D, GWA-20SA/D and GWA- 27D. Other constituents detected greater than 2L, IMAC or background (whichever is greater) from baseline effectiveness monitoring well analytical results include beryllium, chloride, chromium, cobalt, iron, manganese, TDS, thallium and vanadium. 2.2.2 Post Startup Results Post startup groundwater sampling of extraction wells was completed on June 13, 2018. Evaluation of post startup analytical results compared to baseline analytical results reveal concentrations of beryllium, boron, chloride, chromium, cobalt, iron, manganese, selenium, TDS, thallium, and vanadium were detected 2018 Startup and Effectiveness Monitoring Report July 17, 2018 Belews Creek Steam Station SynTerra Page 9 P:\Duke Energy Carolinas\20. BELEWS CREEK\14.CCP Accelerated Remediation GW Extraction System\IAP Effectiveness Monitoring Report\FINAL IAP Effectiveness Monitoring Report 2018.docx in the extraction wells. Notable exceptions include boron concentrations at EX-8 increased from 632 µg/L to 1,940 µg/L and iron concentrations at EX-4 decreased from 2,040 mg/L to 30 mg/L. Mass flux calculations of boron presented in the table below show the total mass of boron extracted from a given extraction well since system startup through June 1, 2018. 𝑴𝑴𝑴𝑴𝑴𝑴𝑴𝑴 𝒐𝒐𝒐𝒐 𝑩𝑩𝒐𝒐𝑩𝑩𝒐𝒐𝑩𝑩 𝑬𝑬𝑬𝑬𝑬𝑬𝑩𝑩𝑴𝑴𝑬𝑬𝑬𝑬𝑬𝑬𝑬𝑬=𝑽𝑽𝑻𝑻𝒐𝒐𝑬𝑬𝑴𝑴𝑻𝑻× 𝑪𝑪𝑩𝑩𝒐𝒐𝑩𝑩𝒐𝒐𝑩𝑩 VTotal = the total volume of water pumped from each well; and Cboron = the average concentration of boron from the two sampling events (March 21, 2018 and June 13, 2018). Extraction Well Total Volume Pumped (gal) Average Boron Concentration (µg/gal) Total Mass of Boron Extracted (g) EX-1 7.16E+05 3.86E+04 2.77E+04 EX-2 2.13E+05 4.05E+04 8.65E+03 EX-3 7.41E+04 3.68E+04 2.73E+03 EX-4 3.89E+05 4.02E+04 1.56E+04 EX-5 7.37E+04 4.15E+04 3.06E+03 EX-6 1.86E+05 3.57E+04 6.65E+03 EX-7 1.33E+05 1.60E+04 2.14E+03 EX-8 8.91E+04 4.87E+03 4.34E+02 EX-9 6.62E+04 8.09E+03 5.35E+02 EX-10 1.50E+05 1.56E+04 2.33E+03 Prepared by: ENK Checked by: ALA Groundwater samples collected from effectiveness monitoring wells during the IMP quarterly sample event in Q2 April 2018 represent post startup results. Analytical data from 2018 from CCR-2S/D is not available for post startup evaluation. Historic analytical results from boron concentration time series plots for effectiveness monitoring wells demonstrate relatively stable trends (Figure 2- 7). Post system startup, decreasing boron concentrations in effectiveness monitoring wells are observed at wells GWA-20SA/D, GWA-27D, EXOB-1 and EXOB-2. However, a similar decrease of boron concentration through time is 2018 Startup and Effectiveness Monitoring Report July 17, 2018 Belews Creek Steam Station SynTerra Page 10 P:\Duke Energy Carolinas\20. BELEWS CREEK\14.CCP Accelerated Remediation GW Extraction System\IAP Effectiveness Monitoring Report\FINAL IAP Effectiveness Monitoring Report 2018.docx observed at GWA-19SA which is not expected to be impacted by the extraction system. This observation suggests the decreasing boron concentrations may be influenced by dilution from rainfall infiltration from the 2018 spring rainfall. Boron concentrations in GWA-11D and GWA-21D remain below 2L (Figure 2-7). Post startup results show constituents detected greater than 2L, IMAC or background (whichever is greater) from baseline results remain in elevated concentrations downgradient of the system. Continued monitoring of the extraction system wells and effectiveness monitoring wells will help in establishing trends and causality for system performance. 2018 Startup and Effectiveness Monitoring Report July 17, 2018 Belews Creek Steam Station SynTerra Page 11 P:\Duke Energy Carolinas\20. BELEWS CREEK\14.CCP Accelerated Remediation GW Extraction System\IAP Effectiveness Monitoring Report\FINAL IAP Effectiveness Monitoring Report 2018.docx 3.0 OPERATIONS AND MAINTENANCE The extraction system is monitored to assess system performance on an on-going basis. Weekly routine system performance monitoring includes pumping flow rates, pressure and water levels. Extraction well system data information can be found on Table 3-1. Continuous monitoring of the extraction well system will help establish flow rate and water level trends for system performance evaluation. Through weekly inspections, there have been a few operation or maintenance issues identified and resolved since the system began operating on March 14, 2018. Table 3-1 shows weekly inspection comments pertaining to system maintenance issues. 2018 Startup and Effectiveness Monitoring Report July 17, 2018 Belews Creek Steam Station SynTerra Page 12 P:\Duke Energy Carolinas\20. BELEWS CREEK\14.CCP Accelerated Remediation GW Extraction System\IAP Effectiveness Monitoring Report\FINAL IAP Effectiveness Monitoring Report 2018.docx 4.0 CONCLUSIONS AND RECOMMENDATIONS Approximately 3,172,030 gallons of groundwater have been extracted since startup through May 28, 2018. The average weekly groundwater removed from the total system is about 280,000 gallons. Initial water level data from a twelve week period following startup suggests a zone of influence smaller than predicted in the flow and transport model. The water level monitoring data also suggests the extraction systems effectiveness is influenced by seasonal precipitation. Groundwater extraction system operation under base flow conditions results in decreasing water level trends at the following locations: • CCR-2S • CCR-2D • GWA-20SA • GWA-20D • GWA-27D • EXOB-1 • EXOB-2 SynTerra recommends continued operation using the current system settings. The hourly water level data from the effectiveness monitoring well pressure transducers will continue to be downloaded on a quarterly basis. Continuous monitoring of system settings using HydroVu Data Services will continue to be reviewed and adjusted as necessary. 2018 Startup and Effectiveness Monitoring Report July 17, 2018 Belews Creek Steam Station SynTerra P:\Duke Energy Carolinas\20. BELEWS CREEK\14.CCP Accelerated Remediation GW Extraction System\IAP Effectiveness Monitoring Report\FINAL IAP Effectiveness Monitoring Report 2018.docx FIGURES STRUCTURAL FILL POWER PLANT ASH BASIN PINE HALLROAD LANDFILL ASH BASINMAIN DAM PARCEL LINE DAN RIVER CRAIG ROADLANDFILL FGD LANDFILL PARCEL A DRAWN BY: B. YOUNGCHECKED BY: A. ALBERTPROJECT MA NAGER: C. EADY 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.comP:\Duke Energy Progress.1026\00 GIS BASE DATA\Belews Creek Steam Station\MapDocs\IAP\_Fig01-01_Belews_IAP_SiteLocation.mxd FIGURE 1-1SITE LOCATION MAPBELEWS CREEK STEAM STATIONDUKE ENERGY CAROLINAS, LLCSTOKES COUNTY, NORTH CAROLINA SOURCE:2016 USGS TOPOGR APHIC MAP, BELEW S LAKE QU ADRAN GLE, OBTAINED FROM THE USGS STORE AThttps://store.usgs.gov/map-locator. 1,000 0 1,000 2,000 GRAPHIC SCALE IN FEET ! ! ! DATE: 7 /10/2018CONTOUR INTERVAL: 20 FTMAP DATE: 2016 DRAWN BY: B. YOUNGPROJECT MA NAGER: C. EADY STOKESCOUNTY ASHEVILLE CHARLOTTE WINSTON-SALEM CHEC KED BY: A. ALBERT P:\Duke Energy Carolinas\20. BELEWS CREEK\14.CCP Accelerated Remediation GW Extraction System\IAP Effectiveness Monitoring Report\DWG\BELEWS CK IAP SITE.dwg148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.comPROJECT MANAGER:LAYOUT:DRAWN BY:CRAIG EADYDATE:BENJAMIN YOUNGFIG 1-2 (SITE LAYOUT)06/22/201807/10/2018 9:37 AMFIGURE 1-2SITE LAYOUT AT THE EXTRACTION SYSTEMDUKE ENERGY CAROLINASBELEWS CREEK STEAM STATIONBELEWS CREEK, NORTH CAROLINAS-4S-3S-2GWA-31SGWA-31DGWA-19DGWA-19SAGWA-19BRGWA-19SGWA-10DGWA-10SGWA-10DAGWA-27SGWA-27DGWA-27BRGWA-18SGWA-18DGWA-21DGWA-21SGWA-11DGWA-11SGWA-30DGWA-30SGWA-1DGWA-1SGWA-1BREX-1EX-2EX-3EX-4CCR-4DCCR-4SGWA-20DGWA-20BREXOB-1CCR-2DCCR-2SEX-9EX-8EX-7EX-10EX-6EX-5EXOB-2S-10AB-1DAB-1SAB-1BR1000100200GRAPHIC SCALEIN FEETLEGENDGWA-21SWELL IN DEEP ZONEWELL IN SHALLOW ZONEGWA-27BRWELL IN COMPETENT BEDROCK ZONEWELL ABANDONEDGWA-19SCOMPLIANCE BOUNDARYPARCEL LINE DUKE ENERGY (APPROXIMATE)ASH BASIN WASTE BOUNDARYGWA-21DEXTRACTION WELL IN DEEP ZONESURFACE WATER FLOW DIRECTIONS-16NON-CONSTRUCTED SEEP (APPROXIMATE)EX-8APPROXIMATE STREAM (NON-JD)APPROXIMATE DESIGNATED EFFLUENT CHANNELAPPROXIMATE ASH BASIN PONDED WATEREFFLUENT FLOW DIRECTIONOUTLET STRUCTUREPARCEL A (2.23 ACRES)MID D L E T O N L O O P ASH BASINGWA-20SAGWA-20SS-11CONSTRUCTED SEEP (APPROXIMATE)NOTES:THE DUKE ENERGY CAROLINAS PROPERTY LINE, COMPLIANCE BOUNDARY AND WASTE BOUNDARYSHOWN ARE FROM THE HDR SCSA SUPPLEMENT 2. DUKE IS ANTICIPATING COMMENTS FROM DEQCONCERNING THE COMPLIANCE BOUNDARY.2015 TOPOGRAPHY WAS CONSTRUCTED BY USING LIDAR DATA OBTAINED FROM THE NC SPATIALDATA DOWNLOAD SITE AThttps://sdd.nc.gov/sdd/DataDownload.aspxS-18770760750710720730740S-1176075074073077072071070072073074075071070069075074073072071077 0 76 0 75 0 74 0 76077076 0 7 7 0770760 MIDDLETON LOOP DATE PRINTED: <<<<<<<<<<<<<<<<<<<<<<<<<<<<&< &< &< &< &< &< &< &< &< &< PARCEL A (2.23 ACRES) EXTRACTION SYSTEM EX-1 EX-2 EX-3 EX-4 EX-5 EX-6 EX-7 EX-8 EX-9 EX-10 1051 0.5 10 10 0.5 1 DRAWN BY: B. YOUNGPROJECT MANAGER: C. EADYCHECKED BY: A. ALBERT DATE: 07/09/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Belews Creek Steam Station\MapDocs\IAP\_Fig01-03_Belews_IAP_SimDrawdown.mxd NOTES:PARCEL A (2.23 ACRES) PROPERTY LINE IS BASED ON A PLAT PREPARED BY LDSI TITLED "EXHIBIT MAP FOR DUKE ENERGY CORPORATION", DATED 09-28-2016,PROJECT NUMBER 4115187, FILE NAME 4115198.DW G. DRAWDOWN DEPTHS ARE REFERENCED TO THE NORTH AMERICAN VERTICAL DATUM 88 (NAVD88). AERIAL PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ON AUGUST 17, 2017. IMAGE COLLECTED ON APRIL 8, 2017. DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA STATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83). FIG URE 1-3SIMULATED DRAWDOWNTEN EXTRACTION WELLSTRANSITION ZONE (LAYER 6)BELEWS STEAM STATION PLANTBELEWS CREEK, NORTH CAROLINA GRAPHIC SCALE1500150 300 IN FEET &<PROPOSED EXTRACTION W ELL DRAWDOWN CONTOUR (NAVD88) EXTRACTION SYSTEM ASH BASIN WASTE BOUNDARY ASH BASIN COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS BELEW SCREEK PLANT SITE BOUNDARY DESIGNATED EFFLUENT CHANNEL <STREAM (AMEC NRTR 2015) LEGEND 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 1-4 EXTRACTION WELL AS BUILT BELEWS CREEK STEAM STATION BELEWS CREEK, NORTH CAROLINA Notes: •Figure Extraction Well As Built of Belews Creek Steam Station survey was obtained from McKim & Creed for Duke Energy on 1/24/18. PROJECT DATE: JUNE 2018 PREPARED BY: A. ALBERT CHECKED BY: PROJECT MANAGER: C. EADY <<<<<<<<<<<<<<<<<<<<<<<<!( !( !( !( !( !( &< &< &< &< & & < < & & & & & & & & & & & & & & & & & & & < < < < < < < < < < < < < < < < < < < &< &< &< &< &< &< &< &< &< &< &< &< &( &( &( &( &( &( &( &( &( &(ASH BASINELEVATION 750 FT(APPROXIMATE) EX-OB1 EX-OB2 EX-1 EX-2 EX-3 EX-4EX-5 EX-6 EX-8 EX-9 EX-10 EX-7 AB-1D735.36 AB-2D743.04 AB-3D725.08 GWA-10DNM GWA-11D724.57 GWA-16DNM GWA-17D749.80 GWA-18D748.08 GWA-19D729.12 GWA-1D718.49 GWA-20D746.57 GWA-21D717.57 GWA-24D627.44 GWA-2D748.01 GWA-30D718.29 GWA-31D708.30 GWA-32D681.54 GWA-27D743.70 GWA-5DNM MW-101DNM MW-102DNM MW-200D629.94 MW-204D749.95 MW-103DNMCCR-6D643.61 CCR-8AD738.20 CCR-4D742.80 CCR-2D748.53 CCR-1D749.31 CCR-8D703.85 CCR-7D673.68 CCR-5D708.27 CCR-12D752.30 CCR-11D752.89630660650700710640720730 740620670680 690660700720640620 670 6 9 0 650 630 680730710740MIDDLETON LOOPDRAWN BY: B. YOUNGPROJECT MANAGER: C. EADYCHECKED BY: A. ALBERT DATE: 07/10/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Belews Creek Steam Station\MapDocs\IAP\Belews_IAP_Water_Levels_Oct17_Deep.mxd 200 0 200 400 GRAPHIC SC ALE IN FEET NOTES:WATER LEVELS WERE COLLECTED BY PACE ANALYTICAL SERVICES OCTOBER 9,2017. NM - NOT MEASURED DURING 24-HOUR W ATER LEVEL EVENT. ELEVATIONS ARE REFERENCED TO THE NORTH AMERICAN VERTICAL DATUM 88(NAVD 88). PROPERTY BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ON AUGUST 2, 2017.AERIAL WAS COLLECTED ON APRIL 8, 2017. DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83/2011).FIGURE 2-1DEEP WATER LEVEL MAPOCTOBER 2017BELEWS CREEK STEAM STATIONDUKE ENERGY CA ROLINAS, LLCBELEWS CREEK, NORTH CAROLINA GROUNDWATER FLOW DIRECTION LEGEND &<ASSESSMENT W ELL &<BACKGROUND COMPLIANCE W ELL &<DOWNGRADIENT COMPLIANCE W ELL &<MONITORING W ELL &<ABANDONED W ELL &(EXTRACTION W ELL !(WATER SUPPLY WELL SAMPLED BY NCDEQ (2015) ORBY DUKE ENERGY (2017) !(WATER SUPPLY WELL NOT SAMPLED INFERRED WATER LEVEL CONTOUR IN FEET (NAVD 88) MEASURED WATER LEVEL CONTOUR IN FEET (NAVD 88) ASH BASIN WASTE BOUNDARY ASH BASIN COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS BELEW S CREEKPLANT SITE BOUNDARY DESIGNATED EFFLUENT CHANNEL <STREAM (AMEC NRTR 2015) <<<<<<<<<<<<<<<<<<<<<<<<!( !( !( !( !( !( &< &< &< &< & & < < & & & & & & & & & & & & & & & & & & & < < < < < < < < < < < < < < < < < < < &< &< &< &< &< &< &< &< &< &< &< &< &( &( &( &( &( &( &( &( &( &( ASH BASINELEVATION 750 FT(APPROXIMATE) AB-1D731.97 AB-2D732.39 AB-3D724.32 GWA-10DNM GWA-11D723.51 GWA-16DNM GWA-17D749.32 GWA-19D728.65 GWA-1D714.75 GWA-20D745.95 GWA-21D717.07 GWA-24D627.37 GWA-2D747.56 GWA-30D717.76 GWA-31D707.82 GWA-32D681.52 GWA-27D743.36 GWA-5DNM MW-101DNM MW-102DNM MW-200D630.73 MW-204D750.17 MW-103DNM GWA-18D748.48 CCR-6D643.77 CCR-8AD736.91 CCR-4D741.20 CCR-2D748.48 CCR-1D749.36 CCR-8D703.63 CCR-7D674.26 CCR-5D707.97 CCR-12D752.37 CCR-11D753.31 EX-OB1 EX-OB2 EX-1 EX-2 EX-3 EX-4EX-5 EX-6 EX-8 EX-9 EX-10 EX-7 630650710740730680 620660 640 670690700720660640700720620 670 6 9 0 650 630 680730710740MIDDLETON LOOPDRAWN BY: B. YOUNGPROJECT MANAGER: C. EADYCHECKED BY: A. ALBERT DATE: 07/10/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Belews Creek Steam Station\MapDocs\IAP\Belews_IAP_Water_Levels_April18_Deep.mxd 200 0 200 400 GRAPHIC SC ALE IN FEET NOTES:WATER LEVELS WERE COLLECTED BY PACE ANALYTICAL SERVICES APRIL 16, 2018. NM - NOT MEASURED DURING 24-HOUR W ATER LEVEL EVENT. ELEVATIONS ARE REFERENCED TO THE NORTH AMERICAN VERTICAL DATUM 88(NAVD 88). PROPERTY BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ON AUGUST 2, 2017.AERIAL WAS COLLECTED ON APRIL 8, 2017. DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83/2011). FIGURE 2-2DEEP WATER LEVEL MAPAPRIL 2018BELEWS CREEK STEAM STATIONDUKE ENERGY CA ROLINAS, LLCBELEWS CREEK, NORTH CAROLINA GROUNDWATER FLOW DIRECTION LEGEND &<ASSESSMENT W ELL &<BACKGROUND COMPLIANCE W ELL &<DOWNGRADIENT COMPLIANCE W ELL &<MONITORING W ELL &<ABANDONED W ELL &(EXTRACTION W ELL !(WATER SUPPLY WELL SAMPLED BY NCDEQ (2015) ORBY DUKE ENERGY (2017) !(WATER SUPPLY WELL NOT SAMPLED INFERRED WATER LEVEL CONTOUR IN FEET (NAVD 88) MEASURED WATER LEVEL CONTOUR IN FEET (NAVD 88) ASH BASIN WASTE BOUNDARY ASH BASIN COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS BELEW S CREEKPLANT SITE BOUNDARY DESIGNATED EFFLUENT CHANNEL <STREAM (AMEC NRTR 2015) &<&<&< &<&< &<&< &<&<&< &<&< &<&<&< &<&< &<&< &< &< &< &( &( &( &( &( &( &( &( &( &( &< &< &< &< &<&< &< &< &< ASH BASIN PARCEL A1.6 ACRES * AB-1/S/D/BR * GWA-10S/D * CCR-4S/D EX-1234,430 GAL. EX-235,050 GAL. EX-310,840 GAL. EX-477,710 GAL. EX-518,350 GAL. EX-620,470 GAL. EX-774,440 GAL. EX-841,170 GAL. EX-911,920 GAL. EX-10144,490 GAL. GWA-11D0.06' GWA-20D0.31' GWA-21D0.15' GWA-27D0.09' GWA-20SA0.26' CCR-02D0.11'CCR-02S0.07' EX-OB10.76' EX-OB20.4665MIDDLETON LOOP0.60.4 0 . 2 DRAWN BY: B. YOUNGPROJECT MANAGER: C. EADYCHECKED BY: A. ALBERT DATE: 07/10/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Belews Creek Steam Station\MapDocs\IAP\_Fig02-03_Belews_IAP_DrawdownContours.mxd 50 0 50 100 GRAPHIC SC ALE IN FEET NOTES:DRAWDOWN WAS CALCULATED FROM THE DIFFERENCE IN W ATER LEVEL READINGON MARCH 2, 2018 BEFORE PUMP STARTUP AND MARCH 21, 2018 AFTER PUMPSTARTUP. SYSTEM STARTUP ON MARCH 14, 2018. * MONITORING WELLS AB-1S/D/BR, CCR-4S/D, AND GW A-10S/D ARE NOT PART OF THEEFFECTIVENESS MONITORING WELL NETWORK AND DO NOT HAVE TRANSDUCERDATA AVAILABLE. TOTAL GROUNDWATER REMOVED FROM EXTRACTION W ELL AS OF MARCH 19, 2018. PROPERTY BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ON AUGUST 2, 2017.AERIAL WAS COLLECTED ON APRIL 8, 2017. DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83/2011).FIGURE 2-3DRAWDOWN CONTOUR MAPINTERIM ACTION GROUNDWATEREXTRACTION SYSTEMBELEWS CREEK STEAM STATIONDUKE ENERGY CAROLINAS, LLCBELEWS CREEK, NORTH CAROLINA LEGEND &<ASSESSMENT W ELL &<MONITORING W ELL &<ABANDONED W ELL &(EXTRACTION W ELL DRAWDOWN CONTOUR IN FEET INFERRED DRAWDOWN CONTOUR IN FEET ASH BASIN WASTE BOUNDARY ASH BASIN COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS BELEW SCREEK PLANT SITE BOUNDARY 0.15 MEASURED DRAWDOW N IN FEET 1,000 TOTAL GROUNDWATER REMOVED IN GALLONS 0 0.5 1 1.5 2 2.5 3748.00 748.10 748.20 748.30 748.40 748.50 748.60 748.70 748.80 748.90 749.00 3/1/2018 3/11/2018 3/21/2018 3/31/2018 4/10/2018 4/20/2018 4/30/2018 5/10/2018 5/20/2018 5/30/2018 Rainfall (in.) Water Level (ft. msl) CCR-2S 0 0.5 1 1.5 2 2.5 3743.20 743.40 743.60 743.80 744.00 744.20 744.40 3/1/2018 3/11/2018 3/21/2018 3/31/2018 4/10/2018 4/20/2018 4/30/2018 5/10/2018 5/20/2018 5/30/2018 Rainfall (in.) Water Level (ft. msl) GWA-27D 0 0.5 1 1.5 2 2.5 3748.00 748.20 748.40 748.60 748.80 749.00 749.20 749.40 3/1/2018 3/11/2018 3/21/2018 3/31/2018 4/10/2018 4/20/2018 4/30/2018 5/10/2018 5/20/2018 5/30/2018 Rainfall (in.) Water Level (ft. msl.) CCR-2D 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: A. ALBERT CHECKED BY C. EADY PROJECT MANAGER: C. EADY DATE: JUNE 2018 P:\Duke Energy Carolinas\20. BELEWS CREEK\14.CCP Accelerated Remediation GW Extraction System\Figures\Water Level Monitoring March-April.pptx Groundwater response to rainfall >1 in Observed drawdown from system startup Groundwater response to rainfall >1 in No observed drawdown from system startup Observed drawdown from system startup Groundwater response to rainfall >1 in FIGURE 2-4 WATER LEVEL MONITORING CCR-2S, CCR-2D AND GWA-27D BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS, LLC BELEWS CREEK, NORTH CAROLINA Notes: •Monthly rainfall data comes from BC Weather station in Belews Creek, NC •Water elevation data is reported from 03/02/18 to 05/31/18. •A correction factor is applied to the Monitoring Period Water Level record to calibrate it to the Startup Period Water Level. Daily Total Rainfall (in.) System Startup Date CAMA /CCR Sample Date Startup Period Water Level (ft. msl) Monitoring Period Water Level (ft. msl) Moving average of drawdown 0 0.5 1 1.5 2 2.5 3716.50 717.00 717.50 718.00 718.50 719.00 3/1/2018 3/11/2018 3/21/2018 3/31/2018 4/10/2018 4/20/2018 4/30/2018 5/10/2018 5/20/2018 5/30/2018 Rainfall (in.) Water Level (ft. msl) GWA-21D 0 0.5 1 1.5 2 2.5 3742.00 742.50 743.00 743.50 744.00 3/1/2018 3/11/2018 3/21/2018 3/31/2018 4/10/2018 4/20/2018 4/30/2018 5/10/2018 5/20/2018 5/30/2018 Rainfall (in.) Water Level (ft. msl) EXOB-1 0 0.5 1 1.5 2 2.5 3747.50 747.70 747.90 748.10 748.30 748.50 748.70 748.90 3/1/2018 3/11/2018 3/21/2018 3/31/2018 4/10/2018 4/20/2018 4/30/2018 5/10/2018 5/20/2018 5/30/2018 Rainfall (in.) Water Level (ft. msl) EXOB-2 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: A. ALBERT CHECKED BY C. EADY PROJECT MANAGER: C. EADY DATE: JUNE 2018 P:\Duke Energy Carolinas\20. BELEWS CREEK\14.CCP Accelerated Remediation GW Extraction System\Figures\Water Level Monitoring March-April.pptx System maintenance on March 26, 2018 for EX-4 transducer replacement Groundwater response to rainfall >1 in Observed drawdown from system startup System maintenance on March 26, 2018 for EX-4 transducer replacement Observed drawdown from system startup Groundwater response to rainfall >1 in Groundwater response to rainfall >1 in No observed drawdown from system startup FIGURE 2-5 WATER LEVEL MONITORING EXOB-1, EXOB-2 AND GWA-21D BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS, LLC BELEWS CREEK, NORTH CAROLINA Notes: •Monthly rainfall data comes from BC Weather station in Belews Creek, NC •Water elevation data is reported from 03/02/18 to 05/31/18. •A correction factor is applied to the Monitoring Period Water Level record to calibrate it to the Startup Period Water Level. Daily Total Rainfall (in.) System Startup Date CAMA /CCR Sample Date Startup Period Water Level (ft. msl) Monitoring Period Water Level (ft. msl) Moving average of drawdown 0 0.5 1 1.5 2 2.5 3746.50 746.70 746.90 747.10 747.30 747.50 747.70 747.90 3/1/2018 3/11/2018 3/21/2018 3/31/2018 4/10/2018 4/20/2018 4/30/2018 5/10/2018 5/20/2018 5/30/2018 Rainfall (in.) Water Elevation (ft. msl) GWA-20SA 0 0.5 1 1.5 2 2.5 3745.50 745.70 745.90 746.10 746.30 746.50 746.70 746.90 3/1/2018 3/11/2018 3/21/2018 3/31/2018 4/10/2018 4/20/2018 4/30/2018 5/10/2018 5/20/2018 5/30/2018 Rainfall (in.) Water Level (ft. msl) GWA-20D 0 0.5 1 1.5 2 2.5 3723 723.2 723.4 723.6 723.8 724 724.2 724.4 3/1/2018 3/11/2018 3/21/2018 3/31/2018 4/10/2018 4/20/2018 4/30/2018 5/10/2018 5/20/2018 5/30/2018 Rainfall (in.) Water Level (ft. msl) GWA-11D 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: A. ALBERT CHECKED BY C. EADY PROJECT MANAGER: C. EADY DATE: JUNE 2018 FIGURE 2-6 WATER LEVEL MONITORING GWA-20SA, GWA-20D AND GWA-11D BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS, LLC BELEWS CREEK, NORTH CAROLINA P:\Duke Energy Carolinas\20. BELEWS CREEK\14.CCP Accelerated Remediation GW Extraction System\Figures\Water Level Monitoring March-April.pptx Notes: •Monthly rainfall data comes from BC Weather station in Belews Creek, NC •Water elevation data is reported from 03/02/18 to 05/31/18. •GWA-20SA uses GWA-20S survey data. •A correction factor is applied to the Monitoring Period Water Level record to calibrate it to the Startup Period Water Level. Daily Total Rainfall (in.) System Startup Date CAMA /CCR Sample Date Startup Period Water Level (ft. msl) Monitoring Period Water Level (ft. msl) Moving average of drawdown Groundwater response to rainfall >1 in No observed drawdown from system startup System maintenance on March 26, 2018 for EX-4 transducer replacement Groundwater response to rainfall >1 in Observed drawdown from system startup System maintenance on March 26, 2018 for EX-4 transducer replacement Groundwater response to rainfall >1 in Observed drawdown from system startup 0 2,000 4,000 6,000 8,000 10,000 12,000 14,000 Boron Concentration (µg/L) System Startup Date 2L CCR-02D CCR-02S GWA-11D GWA-20D GWA-20SA GWA-21D GWA-27D EXOB-01 EXOB-02 GWA-19SA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: A. ALBERT PROJECT MANAGER: C. EADY LAYOUT: A. ALBERT DATE: JUNE, 2018 FIGURE 2-7 BORON TIME SERIES BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS, LLC BELEWS CREEK, NORTH CAROLINA P:\Duke Energy Carolinas\20. BELEWS CREEK\14.CCP Accelerated Remediation GW Extraction System\Figures\Time Series\Fig 2-X Boron Time Series.pptx 700 2018 Startup and Effectiveness Monitoring Report July 17, 2018 Belews Creek Steam Station SynTerra P:\Duke Energy Carolinas\20. BELEWS CREEK\14.CCP Accelerated Remediation GW Extraction System\IAP Effectiveness Monitoring Report\FINAL IAP Effectiveness Monitoring Report 2018.docx TABLES TABLE 2-1 OCTOBER 2017 AND APRIL 2018 WATER LEVEL MEASUREMENTS BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS LLC, BELEWS CREEK, NC Identification Date Measured Measured Well Depth (Feet TOC) Measured Depth to Water (Feet TOC) Water Level (Feet MSL) AB-1BR 10/9/2017 101.35 37.27 735.56 AB-1D 10/9/2017 82.09 37.11 735.36 AB-1S 10/9/2017 53.28 39.11 733.31 AB-2D 10/9/2017 142.82 30.80 743.04 AB-2S 10/9/2017 49.63 31.19 742.75 AB-3D 10/9/2017 120.7 47.43 725.08 AB-3S 10/9/2017 54.15 37.37 735.25 AB-4BR 10/9/2017 146.58 7.21 754.78 AB-4BRD 10/9/2017 165.12 7.92 754.58 AB-4D 10/9/2017 97.13 7.44 754.77 AB-4S 10/9/2017 21.05 6.97 755.21 AB-4SL 10/9/2017 64.32 7.40 754.85 AB-4SAP Not Installed NA1 NA1 NA1 AB-5D 10/9/2017 105.36 6.96 755.17 AB-5S 10/9/2017 20.99 9.50 752.40 AB-5SL 10/9/2017 46.75 6.33 755.52 AB-6D 10/9/2017 93.18 7.96 757.37 AB-6S 10/9/2017 15.43 7.25 758.30 AB-6SL 10/9/2017 21.53 7.32 758.18 AB-7D 10/9/2017 92.44 13.16 757.98 AB-7S 10/9/2017 18.33 13.59 757.50 AB-8D 10/9/2017 80.7 8.97 756.41 AB-8S 10/9/2017 26.51 8.40 756.70 AB-8SL 10/9/2017 50.15 8.78 756.51 AB-9BR 10/9/2017 140.45 25.83 757.01 AB-9BRD 10/9/2017 198.8 25.83 757.43 AB-9D 10/9/2017 100.46 25.98 756.86 AB-9S 10/9/2017 31.82 25.00 758.15 BG-1D 10/9/2017 54.92 47.38 761.10 BG-1S 10/9/2017 44.81 44.81 763.94 BG-2BRA 10/9/2017 107.8 46.94 766.65 BG-2D 10/9/2017 77.61 46.53 765.60 BG-2S 10/9/2017 56.99 47.95 763.85 BG-3D 10/9/2017 70.16 29.32 815.29 BG-3S 10/9/2017 40.03 30.98 814.66 GWA-10DA 10/9/2017 72.5 11.18 NA2 GWA-10S 10/9/2017 21.87 7.72 741.39 GWA-11D 10/9/2017 70.82 32.47 724.57 GWA-11S 10/9/2017 42.07 28.89 728.14 GWA-12BR 10/9/2017 116.09 62.52 773.94 GWA-12D 10/9/2017 72.90 55.81 781.35 GWA-12S 10/9/2017 58.43 54.69 781.10 GWA-16BR 10/9/2017 106.53 37.10 746.56 GWA-16DA 10/9/2017 59.29 35.86 NA2 GWA-16S 10/9/2017 47.71 34.52 749.89 GWA-17D 10/9/2017 58.25 37.57 749.8 GWA-17S 10/9/2017 43.45 37.46 750.15 GWA-18D 10/9/2017 65.5 26.46 748.077 GWA-18SA 10/9/2017 41.89 26.65 747.942 GWA-19BR 10/9/2017 88.83 26.01 717.05 GWA-19D 10/9/2017 46.21 14.12 729.124 GWA-19SA 10/9/2017 21.29 10.46 732.868 GWA-1BR 10/9/2017 123.58 66.37 NA2 GWA-1D 10/9/2017 66.39 24.54 718.49 GWA-1S 10/9/2017 38.46 24.50 718.58 GWA-20BR 10/9/2017 39.48 33.03 740.66 GWA-20D 10/9/2017 64.40 27.15 746.57 GWA-20SA 10/9/2017 39.25 (T.O.P.)26.41 NA2 GWA-21D 10/9/2017 32.59 17.22 717.57 GWA-21S 10/9/2017 19.20 15.75 719.259 GWA-22D 10/9/2017 37.68 8.81 726.92 GWA-22S 10/9/2017 20.98 7.61 730.49 GWA-23D 10/9/2017 62.15 24.23 787.56 GWA-23S 10/9/2017 40.72 26.59 784.98 GWA-24BR 10/9/2017 72.54 26.71 615.07 GWA-24D 10/9/2017 20.78 14.77 627.44 GWA-24S 10/9/2017 12.36 12.36 630.85 GWA-25BR 10/9/2017 104.82 41.72 814.04 GWA-26BR 10/9/2017 93.55 40.92 814.07 GWA-26D 10/9/2017 71.23 42.67 814.13 GWA-26S 10/9/2017 52.11 41.69 814.47 GWA-27BR 10/9/2017 117.57 32.15 726.17 GWA-27D 10/9/2017 44.64 14.60 743.70 GWA-27S 10/9/2017 24.63 12.92 745.504 GWA-2D 10/9/2017 66.26 39.50 748.01 GWA-2S 10/9/2017 52.25 38.86 748.72 GWA-30D 10/9/2017 41.09 20.20 718.29 GWA-30S 10/9/2017 27.94 20.35 718.08 GWA-31D 10/9/2017 63.01 7.37 708.30 GWA-31S 10/9/2017 23.35 14.51 699.75 GWA-32D 10/9/2017 80.57 25.30 681.54 GWA-32S 10/9/2017 31.75 19.74 687.94 GWA-3D 10/9/2017 53.05 42.13 727.37 GWA-3S 10/9/2017 44.74 41.81 727.33 GWA-6D 10/9/2017 108.88 39.87 753.38 GWA-6S 10/9/2017 46.31 32.94 760.43 GWA-7D 10/9/2017 86.30 37.01 785.69 GWA-7SA 10/9/2017 45.31 36.32 786.55 GWA-8D 10/9/2017 98.30 31.23 799.92 GWA-8S 10/9/2017 38.68 28.49 803.52 GWA-9BR 10/9/2017 126.35 48.41 746.123 GWA-9D 10/9/2017 92.52 44.24 750.04 October 2017 Water Level Measurements P:\Duke Energy Carolinas\20. BELEWS CREEK\14.CCP Accelerated Remediation GW Extraction System\IAP Effectiveness Monitoring Report\Tables\Table 2-1 October 2017 and April 2018 Water Level Measurements Page 1 of 3 TABLE 2-1 OCTOBER 2017 AND APRIL 2018 WATER LEVEL MEASUREMENTS BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS LLC, BELEWS CREEK, NC Identification Date Measured Measured Well Depth (Feet TOC) Measured Depth to Water (Feet TOC) Water Level (Feet MSL) October 2017 Water Level MeasurementsGWA-9S 10/9/2017 54.62 42.08 751.91 MW-1 10/9/2017 41.37 (T.O.P.)35.81 816.88 MW-104BR 10/9/2017 152.11 41.18 757.38 MW-104D 10/9/2017 83.72 (T.O.P.)40.62 757.72 MW-104S 10/9/2017 45.62 (T.O.P.)40.96 757.72 MW-1D 10/9/2017 87.77 (T.O.P.)43.14 811.01 MW-2 10/9/2017 47.62 (T.O.P.)46.41 811.64 MW-200BR 10/9/2017 50.00 (Artesian)0.00 636.42 MW-200D 10/9/2017 15.55 (T.O.P.)6.11 629.94 MW-200S 10/9/2017 8.93 (T.O.P.)5.46 630.43 MW-201BR 10/9/2017 106.41 34.33 749.44 MW-201D 10/9/2017 40.38 (T.O.P.)33.04 750.94 MW-202BR 10/9/2017 106.32 46.43 743.20 MW-202D 10/9/2017 88.60 (T.O.P.)47.55 743.23 MW-202S 10/9/2017 56.29 (T.O.P.)47.85 742.12 MW-203BR 10/9/2017 102.08 35.17 752.09 MW-203D 10/9/2017 88.48 (T.O.P.)33.57 752.00 MW-203S 10/9/2017 38.64 (T.O.P.)33.89 752.25 MW-204D 10/9/2017 37.26 (T.O.P.)26.83 749.95 MW-204S 10/9/2017 30.05 (T.O.P.)26.35 749.94 MW2-7 10/9/2017 25.40 (T.O.P.)14.31 763.33 MW2-9 10/9/2017 10.00 (T.O.P.)7.56 789.82 MW-3 10/9/2017 45.55 43.34 799.47 MW-4 10/9/2017 35.84 (T.O.P.)12.49 755.09 MW-5 10/9/2017 53.20 (T.O.P.)25.82 760.95 MW-6 10/9/2017 34.53 (T.O.P.)below pump NA MW-7 10/9/2017 10.04 (T.O.P.)8.76 806.81 OB-4 10/9/2017 26.00 (T.O.P.)22.51 755.09 OB-5 10/9/2017 32.34 (T.O.P.)25.99 754.94 OB-9 10/9/2017 44.02 (T.O.P.)38.04 761.55 EX-OB-1 Not Installed NA1 NA1 NA1 EX-OB-2 Not Installed NA1 NA1 NA1 AB-1BR 4/16/2018 101.35 38.61 734.22 AB-1D 4/16/2018 82.09 40.50 731.97 AB-1S 4/16/2018 53.28 38.45 733.97 AB-2D 4/16/2018 142.82 41.45 732.39 AB-2S 4/16/2018 49.63 30.81 743.13 AB-3D 4/16/2018 120.7 48.19 724.32 AB-3S 4/16/2018 54.15 37.79 734.83 AB-4BR 4/16/2018 146.58 6.75 755.24 AB-4BRD 4/16/2018 165.12 7.44 755.06 AB-4D 4/16/2018 97.13 6.93 755.28 AB-4S 4/16/2018 21.05 6.40 755.78 AB-4SL 4/16/2018 64.32 6.75 755.50 AB-4SAP 4/16/2018 88.73 6.85 755.07 AB-5D 4/16/2018 105.36 6.72 755.41 AB-5S 4/16/2018 20.99 6.09 755.81 AB-5SL 4/16/2018 46.75 5.85 756.00 AB-6D 4/16/2018 93.18 7.97 757.36 AB-6S 4/16/2018 15.43 7.51 758.04 AB-6SL 4/16/2018 21.53 7.58 757.92 AB-7D 4/16/2018 92.44 12.76 758.38 AB-7S 4/16/2018 18.33 12.22 758.87 AB-8D 4/16/2018 80.7 7.72 757.66 AB-8S 4/16/2018 21.12 7.02 758.08 AB-8SL 4/16/2018 50.15 7.65 757.64 AB-9BR 4/16/2018 140.45 24.24 758.60 AB-9BRD 4/16/2018 198.8 24.30 758.96 AB-9D 4/16/2018 98.47 23.80 759.04 AB-9S 4/16/2018 31.76 22.95 760.20 BG-1D 4/16/2018 54.92 Below Pump NA BG-1S 4/16/2018 44.81 DRY (44.81)NA BG-2BRA 4/16/2018 107.8 48.20 765.39 BG-2D 4/16/2018 77.61 47.68 764.45 BG-2S 4/16/2018 56.99 49.06 762.74 BG-3D 4/16/2018 70.16 30.28 814.33 BG-3S 4/16/2018 40.03 33.03 812.61 GWA-10DA 4/16/2018 72.5 10.04 NA2 GWA-10S 4/16/2018 21.87 6.42 742.69 GWA-11D 4/16/2018 70.82 33.53 723.51 GWA-11S 4/16/2018 42.07 30.56 726.47 GWA-12BR 4/16/2018 116.09 64.68 771.78 GWA-12D 4/16/2018 72.90 56.51 780.65 GWA-12S 4/16/2018 58.43 55.37 780.42 GWA-16BR 4/16/2018 106.53 37.13 746.53 GWA-16DA 4/16/2018 59.29 35.69 NA2 GWA-16S 4/16/2018 47.71 34.27 750.14 GWA-17D 4/16/2018 58.25 38.05 749.32 GWA-17S 4/16/2018 43.45 37.51 750.1 GWA-18D 4/16/2018 65.5 26.06 748.477 GWA-18SA 4/16/2018 41.89 26.26 748.332 GWA-19BR 4/16/2018 88.83 26.36 716.7 GWA-19D 4/16/2018 46.21 14.59 728.654 April 2018 Water Level Measurements P:\Duke Energy Carolinas\20. BELEWS CREEK\14.CCP Accelerated Remediation GW Extraction System\IAP Effectiveness Monitoring Report\Tables\Table 2-1 October 2017 and April 2018 Water Level Measurements Page 2 of 3 TABLE 2-1 OCTOBER 2017 AND APRIL 2018 WATER LEVEL MEASUREMENTS BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS LLC, BELEWS CREEK, NC Identification Date Measured Measured Well Depth (Feet TOC) Measured Depth to Water (Feet TOC) Water Level (Feet MSL) October 2017 Water Level MeasurementsGWA-19SA 4/16/2018 21.29 9.64 733.688 GWA-1BR 4/16/2018 123.58 67.13 NA2 GWA-1D 4/16/2018 66.39 28.28 714.75 GWA-1S 4/16/2018 38.46 26.55 716.53 GWA-20BR 4/16/2018 39.48 32.74 740.95 GWA-20D 4/16/2018 64.40 27.77 745.95 GWA-20SA 4/16/2018 46.40 26.54 NA2 GWA-21D 4/16/2018 32.59 17.72 717.07 GWA-21S 4/16/2018 19.20 16.24 718.769 GWA-22D 4/16/2018 37.68 8.82 726.91 GWA-22S 4/16/2018 20.98 7.31 730.79 GWA-23D 4/16/2018 62.15 23.60 788.19 GWA-23S 4/16/2018 40.72 25.95 785.62 GWA-24BR 4/16/2018 72.54 24.92 616.86 GWA-24D 4/16/2018 20.78 14.84 627.37 GWA-24S 4/16/2018 12.36 DRY (12.36)NA GWA-25BR 4/16/2018 104.82 43.46 812.30 GWA-26BR 4/16/2018 93.55 42.58 812.41 GWA-26D 4/16/2018 70.40 44.33 812.47 GWA-26S 4/16/2018 51.62 43.50 812.66 GWA-27BR 4/16/2018 117.57 32.51 725.81 GWA-27D 4/16/2018 44.64 14.94 743.36 GWA-27S 4/16/2018 24.63 12.98 745.444 GWA-2D 4/16/2018 66.26 39.95 747.56 GWA-2S 4/16/2018 52.25 39.32 748.26 GWA-30D 4/16/2018 41.09 20.73 717.76 GWA-30S 4/16/2018 27.94 20.66 717.77 GWA-31D 4/16/2018 63.01 7.85 707.82 GWA-31S 4/16/2018 23.35 14.14 700.12 GWA-32D 4/16/2018 80.57 25.32 681.52 GWA-32S 4/16/2018 31.75 19.84 687.84 GWA-3D 4/16/2018 53.05 42.20 727.30 GWA-3S 4/16/2018 44.74 41.88 727.26 GWA-6D 4/16/2018 108.88 39.38 753.87 GWA-6S 4/16/2018 46.31 32.53 760.84 GWA-7D 4/16/2018 86.30 37.56 785.14 GWA-7SA 4/16/2018 45.31 36.69 786.18 GWA-8D 4/16/2018 98.30 31.34 799.81 GWA-8S 4/16/2018 38.68 29.16 802.85 GWA-9BR 4/16/2018 126.35 48.10 746.433 GWA-9D 4/16/2018 92.52 44.02 750.26 GWA-9S 4/16/2018 54.62 41.98 752.01 MW-1 4/16/2018 41.37 (T.O.P.)38.08 814.61 MW-104BR 4/16/2018 152.11 40.83 757.73 MW-104D 4/16/2018 87.29 40.88 757.46 MW-104S 4/16/2018 45.65 41.86 756.82 MW-1D 4/16/2018 87.77 (T.O.P.)44.28 809.87 MW-2 4/16/2018 47.62 (T.O.P.)Below Pump NA MW-200BR 4/16/2018 50.00 (Artesian)0.00 (Artesian)NA MW-200D 4/16/2018 15.55 (T.O.P.)5.32 630.73 MW-200S 4/16/2018 8.93 (T.O.P.)3.63 632.26 MW-201BR 4/16/2018 106.41 34.54 749.23 MW-201D 4/16/2018 44.35 33.78 750.20 MW-202BR 4/16/2018 106.32 47.74 741.89 MW-202D 4/16/2018 88.60 (T.O.P.)48.82 741.96 MW-202S 4/16/2018 56.29 (T.O.P.)48.85 741.12 MW-203BR 4/16/2018 102.08 34.44 752.82 MW-203D 4/16/2018 92.14 32.90 752.67 MW-203S 4/16/2018 42.78 33.38 752.76 MW-204D 4/16/2018 37.26 (T.O.P.)26.61 750.17 MW-204S 4/16/2018 30.05 (T.O.P.)26.11 750.18 MW2-7 4/16/2018 25.40 (T.O.P.)13.85 763.79 MW2-9 4/16/2018 10.00 (T.O.P.)4.70 792.68 MW-3 4/16/2018 45.55 43.11 799.70 MW-4 4/16/2018 35.84 (T.O.P.)12.02 755.56 MW-5 4/16/2018 59.96 25.46 761.31 MW-6 4/16/2018 36.83 Below Pump NA MW-7 4/16/2018 14.56 6.58 808.99 OB-4 4/16/2018 26.00 (T.O.P.)22.05 755.55 OB-5 4/16/2018 36.46 24.82 756.11 OB-9 4/16/2018 44.02 (T.O.P.)38.00 761.59 EX-OB-1 4/16/2018 57.40 28.49 742.47 EX-OB-2 4/16/2018 40.45 14.94 747.86 Prepared by: ALA Checked by: ENK Notes: MSL - Mean sea level NA - Not available NM - Not measured TOC - Top of casing T.O.P. - Top of pump 1Well AB-4SAP, EXOB-1 and EXOB-2 were installed in 2018, post October 2017 24 hour water level gauging 2Wells GWA-1BR, GWA-10DA, GWA-16DA and GWA-20SA do not have survey data available for calculating water level (feet msl) P:\Duke Energy Carolinas\20. BELEWS CREEK\14.CCP Accelerated Remediation GW Extraction System\IAP Effectiveness Monitoring Report\Tables\Table 2-1 October 2017 and April 2018 Water Level Measurements Page 3 of 3 TABLE 2-2 CAMA BASELINE AND POST STARTUP GROUNDWATER ANALYTICAL RESULTS BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS LLC, BELEWS CREEK, NC P:\Duke Energy Carolinas\20. BELEWS CREEK\14.CCP Accelerated Remediation GW Extraction System\IAP Effectiveness Monitoring Report\Tables\Table 2-2 Baseline and Post Startup GW Analytical Results Page 1 of 10 Reporting Units S.U.ft Deg C umhos/cm mg/L mV mV NTUs mg/L 15A NCAC 02L Standard 6.5-8.5 NE NE NE NE NE NE NE NE Provisional Background Threshold Values (Shallow Unit)5.1-6.0 NE NE NE NE NE NE NE NE Provisional Background Threshold Values (Deep Unit)5.2-7.0 NE NE NE NE NE NE NE NE Provisional Background Threshold Values (Bedrock Unit)6.3-6.5 NE NE NE NE NE NE NE NE EX-01 Extraction Well Ash Basin Downgradient Water Transition Zone Deep 764.21 ---------36.29689100 -80.07913996 03/21/2018 6.2 NM NM NM NM NM NM NM NM EX-01 Extraction Well Ash Basin Downgradient Water Transition Zone Deep 764.21 ---------36.29689100 -80.07913996 06/13/2018 5.3 NM 19 1682 4.38 201 406 1.8 NM EX-02 Extraction Well Ash Basin Downgradient Water Transition Zone Deep 753.68 ---------36.29660131 -80.07935518 03/21/2018 5.2 NM NM NM NM NM NM NM NM EX-02 Extraction Well Ash Basin Downgradient Water Transition Zone Deep 753.68 ---------36.29660131 -80.07935518 06/13/2018 4.8 NM 19 1642 1.92 556 761 0.4 NM EX-03 Extraction Well Ash Basin Downgradient Water Transition Zone Deep 756.66 ---------36.29641094 -80.07959097 03/21/2018 5.1 NM NM NM NM NM NM NM NM EX-03 Extraction Well Ash Basin Downgradient Water Transition Zone Deep 756.66 ---------36.29641094 -80.07959097 06/13/2018 5.1 NM 18 1572 1.77 357 562 2.0 NM EX-04 Extraction Well Ash Basin Downgradient Water Transition Zone Deep 758.50 ---------36.29626309 -80.07973574 03/21/2018 5.3 NM NM NM NM NM NM NM NM EX-04 Extraction Well Ash Basin Downgradient Water Transition Zone Deep 758.50 ---------36.29626309 -80.07973574 06/13/2018 5.1 NM 18 1666 3.17 360 565 0.5 NM EX-05 Extraction Well Ash Basin Downgradient Water Transition Zone Deep 757.90 ---------36.29609932 -80.07988584 03/21/2018 5.4 NM NM NM NM NM NM NM NM EX-05 Extraction Well Ash Basin Downgradient Water Transition Zone Deep 757.90 ---------36.29609932 -80.07988584 06/13/2018 5.3 NM 17 1624 2.01 345 550 0.8 NM EX-06 Extraction Well Ash Basin Downgradient Water Transition Zone Deep 757.31 ---------36.29592878 -80.08004310 03/21/2018 5.5 NM NM NM NM NM NM NM NM EX-06 Extraction Well Ash Basin Downgradient Water Transition Zone Deep 757.31 ---------36.29592878 -80.08004310 06/13/2018 5.4 NM 18 1582 1.61 289 494 0.6 NM EX-07 Extraction Well Ash Basin Downgradient Water Transition Zone Deep 757.63 ---------36.29578040 -80.08016998 03/21/2018 5.7 NM NM NM NM NM NM NM NM EX-07 Extraction Well Ash Basin Downgradient Water Transition Zone Deep 757.63 ---------36.29578040 -80.08016998 06/13/2018 5.3 NM 18 1011 1.39 264 469 0.6 NM EX-08 Extraction Well Ash Basin Downgradient Water Transition Zone Deep 757.46 ---------36.29558495 -80.08032684 03/21/2018 5.5 NM NM NM NM NM NM NM NM EX-08 Extraction Well Ash Basin Downgradient Water Transition Zone Deep 757.46 ---------36.29558495 -80.08032684 06/13/2018 5.1 NM 18 674 1.72 359 564 0.7 NM EX-09 Extraction Well Ash Basin Downgradient Water Transition Zone Deep 756.59 ---------36.29542629 -80.08045491 03/21/2018 5.3 NM NM NM NM NM NM NM NM EX-09 Extraction Well Ash Basin Downgradient Water Transition Zone Deep 756.59 ---------36.29542629 -80.08045491 06/13/2018 5.1 NM 18 840 3.27 322 527 1.9 NM EX-10 Extraction Well Ash Basin Downgradient Water Transition Zone Deep 757.18 ---------36.29519024 -80.08056548 03/21/2018 5.8 NM NM NM NM NM NM NM NM EX-10 Extraction Well Ash Basin Downgradient Water Transition Zone Deep 757.18 ---------36.29519024 -80.08056548 06/13/2018 5.6 NM 18 947 3.16 300 505 0.7 NM EXOB-01 West of Ash Basin - North Ash Basin Downgradient Water Transition Zone Deep 770.96 768.38 ------36.29699303 -80.07931029 12/15/2017 5.8 45.15 10 1567 2.10 43 248 2.1 NM EXOB-01 West of Ash Basin - North Ash Basin Downgradient Water Transition Zone Deep 770.96 768.38 ------36.29699303 -80.07931029 12/27/2017 6.1 27.36 10 1451 1.80 46 251 5.5 NM EXOB-01 West of Ash Basin - North Ash Basin Downgradient Water Transition Zone Deep 770.96 768.38 ------36.29699303 -80.07931029 01/23/2018 6.4 27.39 18 1605 0.80 -27 178 8.8 NM EXOB-01 West of Ash Basin - North Ash Basin Downgradient Water Transition Zone Deep 770.96 768.38 ------36.29699303 -80.07931029 04/18/2018 6.6 28.49 22 1634 0.30 -125 80 5.9 NM EXOB-02 West of Ash Basin - North Ash Basin Downgradient Water Transition Zone Deep 762.80 759.77 ------36.29600227 -80.08010089 12/14/2017 5.3 14.68 17 1641 0.40 141 346 3.2 NM EXOB-02 West of Ash Basin - North Ash Basin Downgradient Water Transition Zone Deep 762.80 759.77 ------36.29600227 -80.08010089 12/27/2017 5.3 14.21 13 1617 2.70 116 321 7.4 NM EXOB-02 West of Ash Basin - North Ash Basin Downgradient Water Transition Zone Deep 762.80 759.77 ------36.29600227 -80.08010089 01/23/2018 5.4 14.10 16 1698 0.20 88 293 5.1 NM EXOB-02 West of Ash Basin - North Ash Basin Downgradient Water Transition Zone Deep 762.80 759.77 ------36.29600227 -80.08010089 4/17/2018 5.3 14.93 16 1614 0.30 305 510 1.0 NM GWA-11D Northwest of Ash Basin Ash Basin Downgradient Water Transition Zone Deep 757.04 754.61 691.61 686.61 36.29740660 -80.08061444 07/18/2015 6.4 NM 17 644 2.92 57 262 9.5 NM GWA-11D Northwest of Ash Basin Ash Basin Downgradient Water Transition Zone Deep 757.04 754.61 691.61 686.61 36.29740660 -80.08061444 10/02/2015 6.5 NM 14 630 0.68 15 220 11.9 NM GWA-11D Northwest of Ash Basin Ash Basin Downgradient Water Transition Zone Deep 757.04 754.61 691.61 686.61 36.29740660 -80.08061444 03/29/2016 6.4 NM 17 663 0.50 -89 116 6.0 NM GWA-11D Northwest of Ash Basin Ash Basin Downgradient Water Transition Zone Deep 757.04 754.61 691.61 686.61 36.29740660 -80.08061444 05/09/2016 NM NM NM NM NM NM NM NM NM GWA-11D Northwest of Ash Basin Ash Basin Downgradient Water Transition Zone Deep 757.04 754.61 691.61 686.61 36.29740660 -80.08061444 09/21/2016 6.0 NM 21 193 0.50 -10 196 6.8 NM GWA-11D Northwest of Ash Basin Ash Basin Downgradient Water Transition Zone Deep 757.04 754.61 691.61 686.61 36.29740660 -80.08061444 11/17/2016 6.1 NM 19 814 0.50 47 252 9.8 NM GWA-11D Northwest of Ash Basin Ash Basin Downgradient Water Transition Zone Deep 757.04 754.61 691.61 686.61 36.29740660 -80.08061444 01/27/2017 6.1 NM 12 833 1.40 64 269 5.5 NM GWA-11D Northwest of Ash Basin Ash Basin Downgradient Water Transition Zone Deep 757.04 754.61 691.61 686.61 36.29740660 -80.08061444 04/05/2017 5.0 33.33 20 866 0.80 54 259 9.2 NM GWA-11D Northwest of Ash Basin Ash Basin Downgradient Water Transition Zone Deep 757.04 754.61 691.61 686.61 36.29740660 -80.08061444 07/20/2017 6.0 29.55 22 930 0.30 50 255 7.4 NM GWA-11D Northwest of Ash Basin Ash Basin Downgradient Water Transition Zone Deep 757.04 754.61 691.61 686.61 36.29740660 -80.08061444 10/12/2017 6.0 32.55 19 889 0.60 71 276 8.6 NM GWA-11D Northwest of Ash Basin Ash Basin Downgradient Water Transition Zone Deep 757.04 754.61 691.61 686.61 36.29740660 -80.08061444 01/16/2018 6.2 33.39 4 913 0.60 65 270 9.7 NM GWA-11D Northwest of Ash Basin Ash Basin Downgradient Water Transition Zone Deep 757.04 754.61 691.61 686.61 36.29740660 -80.08061444 04/19/2018 6.1 33.54 19 10 0.30 -16 189 8.0 NM GWA-20D West of Ash Basin - North Ash Basin Downgradient Water Transition Zone Deep 773.72 770.44 715.44 710.44 36.29652000 -80.07987000 03/30/2016 5.7 NM 20 1330 0.80 -20 185 7.1 NM GWA-20D West of Ash Basin - North Ash Basin Downgradient Water Transition Zone Deep 773.72 770.44 715.44 710.44 36.29652000 -80.07987000 05/11/2016 5.6 NM 20 1680 0.40 -22 183 3.1 NM GWA-20D West of Ash Basin - North Ash Basin Downgradient Water Transition Zone Deep 773.72 770.44 715.44 710.44 36.29652000 -80.07987000 09/21/2016 5.3 NM 21 1652 0.50 188 393 0.7 NM GWA-20D West of Ash Basin - North Ash Basin Downgradient Water Transition Zone Deep 773.72 770.44 715.44 710.44 36.29652000 -80.07987000 11/16/2016 5.3 NM 10 1623 1.00 221 426 0.0 NM GWA-20D West of Ash Basin - North Ash Basin Downgradient Water Transition Zone Deep 773.72 770.44 715.44 710.44 36.29652000 -80.07987000 01/25/2017 5.2 NM 18 1653 1.40 88 293 0.1 NM GWA-20D West of Ash Basin - North Ash Basin Downgradient Water Transition Zone Deep 773.72 770.44 715.44 710.44 36.29652000 -80.07987000 04/04/2017 5.1 26.98 21 1655 1.40 266 471 0.7 NM GWA-20D West of Ash Basin - North Ash Basin Downgradient Water Transition Zone Deep 773.72 770.44 715.44 710.44 36.29652000 -80.07987000 07/20/2017 5.0 26.90 28 1745 0.60 192 397 2.0 NM Associated UnitLocation DescriptionSample ID Sample Collection Date LongitudeLatitude Bottom of Well Screen Elevation (FEET) Top of Well Screen Elevation (FEET) Ground Elevation (FEET) Top of Casing Elevation (FEET) Well Screen Location Sample Media Location With Respect to Groundwater Flow Direction Sample Location Aquifer Name pH FIELD PARAMETERS Water Level Dissolved Oxygen Spec CondTemp Ferrous IronTurbidityEh Oxidation Reduction Potential TABLE 2-2 CAMA BASELINE AND POST STARTUP GROUNDWATER ANALYTICAL RESULTS BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS LLC, BELEWS CREEK, NC P:\Duke Energy Carolinas\20. BELEWS CREEK\14.CCP Accelerated Remediation GW Extraction System\IAP Effectiveness Monitoring Report\Tables\Table 2-2 Baseline and Post Startup GW Analytical Results Page 2 of 10 mg/L mg/L ug/L mg/L mg/L mg/L ug/L mg/L mg/L ug/L mg/L mg/L ug/L ug/L ug/L ug/L ug/L ug/L mg/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L mg/L NE NE NE NE NE NE 700 NE 250 NE 250 500 NE 1*10 700 4*2 NE 10 10 1*1000 300 15 NE NE 22.9 22.3 2.65 NE NE NE NE 3.69 15 56.5 1.93 85 860 1 1 58 0.362 1 NE 1.75 4.72 0.509 2.7 750 1 NE 3.41 63.7 62.9 2.64 NE NE NE NE 13.2 20.9 68.5 6.35 148 140 1 1 12.6 0.219 1 NE 0.411 3.3 1.6 5 240 1 NE 6.94 81.3 77.6 10 0.1 10.2 NE 50 10.3 3 100 9.6 133 100 0.5 0.51 6.2 0.2 0.08 NE 0.33 5.3 0.76 9.7 228 0.11 NE 3.35 EX-01 03/21/2018 <5 <5 NA <0.1 1.3 <5 10200 170 M4 240 899 71 1200 53 <1 1.85 109 4.63 1.89 NA 0.058 <1 13 1.2 102 0.4 j 41 65.6 EX-01 06/13/2018 <5 <5 NA <0.1 0.713 <5 10200 169 M4 420 939 78 900 50 1.7 2.47 107 4.12 0.75 j NA <0.025 2.45 11.8 0.696 j 598 <1 43 66.3 EX-02 03/21/2018 <5 <5 NA <0.1 0.814 <5 11200 0.008514 j 470 732 110 1200 231 <1 3.28 193 7.33 1.57 NA 0.094 <1 15.9 <1 15 <1 27 <0.005 EX-02 06/13/2018 <5 <5 NA <0.1 0.661 <5 10200 182 450 662 95 980 201 <1 2.93 168 8.54 1.58 NA 0.082 3.1 17.1 0.561 j 23 <1 26 62.2 EX-03 03/21/2018 <5 <5 NA <0.1 0.881 7 9880 162 460 708 83 1200 136 <1 2.69 251 4.36 1.36 NA 0.08 0.597 j 28.3 1.52 57 0.356 j 19 61.1 EX-03 06/13/2018 <5 <5 NA <0.1 0.616 11 9570 209 430 591 95 1000 103 <1 2.68 207 3.86 0.7 j NA 0.061 0.701 j 31.9 <1 34 <1 15 78.9 EX-04 03/21/2018 6.2 6.2 NA <0.1 0.98 7 10800 180 480 578 75 1200 334 2.96 3.68 301 2.24 <1 NA <0.025 7.52 62.2 <1 2040 <1 19 60.1 EX-04 06/13/2018 <5 <5 NA <0.1 0.672 <5 10400 176 470 553 75 1100 75 <1 2.38 295 2.24 0.604 j NA 0.12 0.676 j 78.4 <1 30 <1 15 60.1 EX-05 03/21/2018 <5 <5 NA <0.1 0.914 <5 11200 198 460 606 150 1200 141 <1 3.2 267 1.05 <1 NA 0.057 0.489 j 98.8 5.08 168 <1 11 60.1 EX-05 06/13/2018 <5 <5 NA <0.1 0.733 <5 10700 191 440 574 140 1100 66 <1 3.23 247 0.533 j <1 NA 0.07 0.935 j 97.8 0.443 j 56 <1 11 58.8 EX-06 03/21/2018 9.7 9.7 NA <0.1 1.1 12 9240 156 460 935 74 1200 16 <1 1.76 209 0.702 j 0.827 j NA <0.025 <1 130 <1 105 <1 23 63.4 EX-06 06/13/2018 9.4 9.4 NA <0.1 0.655 <5 9620 159 430 887 71 1100 14 <1 1.07 257 0.87 j 0.936 j NA 0.039 1.43 132 <1 46 <1 20 62.4 EX-07 03/21/2018 13.6 13.6 NA <0.1 0.603 <5 3610 69.1 220 602 13 620 55 <1 4.15 126 0.773 j <1 NA <0.025 0.51 j 46.9 0.438 j 927 <1 32 33 EX-07 06/13/2018 9.7 9.7 NA <0.1 0.708 <5 4860 81.3 280 729 19 700 53 <1 2.35 142 1.08 0.689 j NA <0.025 0.379 j 52.5 0.962 j 407 <1 34 42.1 EX-08 03/21/2018 10.5 10.5 NA <0.1 0.87 <5 632 27.5 140 350 0.92 320 23 <1 0.742 j 238 1.43 0.454 j NA 0.028 <1 1.95 <1 132 <1 20 22.8 EX-08 06/13/2018 6.4 6.4 NA <0.1 0.387 <5 1940 39.1 200 485 1.3 490 28 <1 0.725 j 333 1.93 0.722 j NA 0.063 <1 4.68 0.336 j 33 <1 23 34.6 EX-09 03/21/2018 9.3 9.3 NA <0.1 0.752 9 1800 52.8 250 676 0.86 560 597 <1 1.34 397 1.56 0.939 j NA <0.025 P4,M1,R1 0.374 j 5.53 <1 602 0.573 j 35 39.1 EX-09 06/13/2018 7.6 7.6 NA <0.1 0.394 <5 2470 61.2 M4 270 796 1.3 620 80 <1 1.05 425 2.29 0.974 j NA <0.025 <1 5.3 0.473 j 260 <1 53 47.7 M4 EX-10 03/21/2018 40.1 40.1 NA <0.1 3.2 <5 4110 71.8 220 557 6.7 590 64 0.381 j 2.27 11 0.837 j 0.36 j NA 0.2 P4 0.647 j 10 7.46 181 <1 150 36.1 EX-10 06/13/2018 21.3 21.3 NA <0.1 0.525 <5 4120 73.8 270 599 2.7 700 16 <1 0.984 j 8 1.3 0.389 j NA 0.05 1.4 8.78 1.47 21 <1 147 39.2 EXOB-01 12/15/2017 16 16 NA <0.1 0.6 j <2.5 9340 158 424 864 70.3 635 <100 0.7 1.4 25.9 0.52 0.67 NA <0.025 2.5 147 0.46 j 1220 0.065 j NA 59.1 EXOB-01 12/27/2017 29.1 29.1 NA <0.1 0.66 j 7.5 8120 136 396 808 64.6 794 67.1 j 0.58 2.5 30.3 0.67 0.47 NA <0.025 1.8 413 0.52 2830 0.072 j NA 56.1 EXOB-01 01/23/2018 37.1 37.1 NA <0.1 <1 8.7 8310 NA 406 834 58.2 820 <100 <0.5 4.5 28.9 0.21 0.25 NA <0.025 2.5 450 <0.5 7040 <0.1 85.7 59 EXOB-01 04/18/2018 60.5 60.5 NA <0.1 4.1 12.2 D6 7550 M1 141 M1 366 779 23.6 898 67 j 0.24 j 27.5 25.7 0.054 j 0.22 NA <0.025 M1,R1 6.1 413 3.3 9990 0.17 75.5 58.2 M1 EXOB-02 12/14/2017 7.5 7.5 NA <0.1 0.53 j <2.5 8570 179 454 505 95.6 1070 82.5 j <0.5 4.2 230 1.7 0.68 NA <0.12 D3 0.54 135 0.56 171 <0.5 D3 NA 44 EXOB-02 12/27/2017 6.9 6.9 NA <0.1 0.59 j 21.6 7800 162 M6 427 M6 520 93.9 M6 932 763 <0.5 5.4 253 2 0.63 NA <0.025 0.32 j 145 1.9 1270 0.22 j,D3 NA 53.4 M6 EXOB-02 01/23/2018 6.1 6.1 NA <0.1 <1 4.8 8080 143 M1 460 433 91.6 1020 223 <0.5 5.3 209 1.4 0.53 NA <0.025 1.1 141 1.1 369 <0.5 D3 12 46 M1 EXOB-02 4/17/2018 5.6 5.6 NA <0.1 0.95 j <2.5 7890 153 396 400 89.6 972 <200 <0.5 5.3 216 1.5 0.39 NA 0.048 0.69 141 0.58 62.3 j,D3 <2 D3 10.7 33.3 GWA-11D 07/18/2015 55.9 55.9 <10 <0.1 11.1 2.6 <50 58 137 280 5 526 170 0.8 2.1 22 0.068 j 0.062 j NA NA 1.5 1.6 1 810 0.11 NA 16.7 GWA-11D 10/02/2015 49.8 49.8 4.8 j <0.1 <1 312 26 j 56.2 145 310 7.6 541 2700 2.8 4.2 40 0.11 j 0.13 NA NA 24.1 3 2.9 4200 0.6 NA 20.3 GWA-11D 03/29/2016 49.5 49.5 3.3 j <0.1 <1 <5 25 j 55 141 286 6.8 445 125 2 j 4.5 27.9 <1 <0.8 NA 0.019 j 17.3 3.2 <5 1410 <1 NA 21.3 GWA-11D 05/09/2016 34.8 34.8 22.4 <0.1 0.62 j 5.1 42.2 j 58.1 177 378 6.7 426 93.4 j <5 7.4 25.2 <1 <0.8 NA 0.02 j 5.2 2.2 <5 3520 <1 NA 25.5 GWA-11D 09/21/2016 36.9 36.9 30 <0.1 <1 <2.5 69.4 61.9 203 435 5.6 576 390 0.12 j 6.1 21.8 0.14 0.065 j NA <0.03 7.1 3 0.72 3920 0.15 NA 28.5 GWA-11D 11/17/2016 33.4 33.4 14 N2 <0.1 <1 5.1 103 68.1 234 471 5.8 457 110 0.25 j 3.6 21.7 0.16 <0.08 NA 0.24 4.5 3 0.7 2640 0.099 j NA 31 GWA-11D 01/27/2017 28.8 28.8 <10 N2 <0.1 <1 3.5 113 66.3 229 500 6.4 504 142 0.25 j 3.4 16 0.22 <0.08 NA 0.19 6 3 0.2 j 2800 <0.1 NA 30.7 GWA-11D 04/05/2017 28.6 28.6 <10 <0.1 3.5 8.1 147 73.8 235 520 6.2 464 125 0.16 j 3.8 20.5 0.14 <0.08 NA <0.12 D3 13.1 2.8 0.31 j 3270 0.12 NA 34.3 GWA-11D 07/20/2017 28.9 28.9 NA <0.1 <1 11.5 192 67.3 240 517 6.2 622 <100 0.3 j 2.7 14.8 0.47 <0.08 NA 0.32 S1 10.9 3.6 0.74 2010 0.22 NA 31.8 GWA-11D 10/12/2017 30.4 30.4 NA <0.1 <1 8.9 218 71.7 247 530 5.3 524 641 0.45 j 2.3 19.2 0.42 <0.08 NA 0.044 14 3.6 1.7 2530 0.36 NA 35.1 GWA-11D 01/16/2018 28.6 28.6 NA <0.1 <1 18 282 75.4 240 539 5.8 486 399 0.39 j 2.9 20.7 0.3 <0.08 NA <0.025 22.6 3.7 1.4 4070 0.095 j 127 36.2 GWA-11D 04/19/2018 33.6 33.6 NA 0.55 4.7 5.5 270 67.3 216 474 2.7 544 320 0.39 j 4.8 18.6 0.43 <0.08 NA <0.025 12.7 3.9 1.2 B 4740 0.22 117 33.9 GWA-20D 03/30/2016 17.2 17.2 3.1 j <0.1 0.55 j 3.9 5990 118 369 724 44.1 814 147 <5 2.6 69.8 0.12 j 0.63 j NA <0.03 1.6 j 9.6 1.6 j 1130 <1 NA 53.6 GWA-20D 05/11/2016 11.8 11.8 <10 <0.1 <1 <5 9200 154 472 910 68 1090 139 <5 16 31.9 0.56 j <0.8 NA <0.3 1.2 j 20.9 <5 2060 <1 NA 61.3 GWA-20D 09/21/2016 8 8 <10 <0.1 <1 <2.5 9110 153 473 973 56.5 1440 <100 <0.5 5.1 64 1.1 1.8 NA <0.03 0.8 7.6 0.59 239 0.13 NA 64.5 GWA-20D 11/16/2016 6.3 6.3 <10 N2 <0.1 <1 <2.5 8970 147 M1 1.9 1040 1.2 820 97 j <0.5 3.6 76.4 1.2 1.8 NA 0.53 0.77 4.9 0.58 185 0.15 NA 65.9 GWA-20D 01/25/2017 5.9 5.9 <10 N2 <0.1 0.65 j <2.5 9240 143 491 995 55.2 990 79.1 j <0.5 3.4 60.6 1.5 2.1 NA 0.14 1.8 4.4 2.1 B 94.5 0.2 NA 72.3 GWA-20D 04/04/2017 6.1 6.1 <10 <0.1 5.3 <2.6 9890 160 478 1020 55.9 1080 85.5 j <0.5 3.2 58.7 1.5 2 NA <0.12 D3 1.5 3.4 0.6 64.6 0.14 NA 63.6 GWA-20D 07/20/2017 6.5 6.5 NA <0.1 <1 <2.6 9190 164 486 891 55.5 1170 <100 <0.5 3.4 52.4 1.6 2.2 NA 0.25 0.74 2.6 0.52 46.7 j 0.15 NA 60.9 Chromium (III)MagnesiumLithiumLeadIronBoron SELECTED 40CFR257 APPENDIX III CONSTITUENTS plus Sr Calcium Chloride WATER QUALITY PARAMETERS Antimony CopperCobaltChromiumChromium (VI)CadmiumAluminumBariumArsenicBeryllium Total Suspended Solids Total Organic Carbon Sample ID Sample Collection Date INORGANIC PARAMETERS (TOTAL CONCENTRATION) Bicarbonate AlkalinityAlkalinity Total Dissolved Solids SulfateStrontiumSulfideMethane TABLE 2-2 CAMA BASELINE AND POST STARTUP GROUNDWATER ANALYTICAL RESULTS BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS LLC, BELEWS CREEK, NC P:\Duke Energy Carolinas\20. BELEWS CREEK\14.CCP Accelerated Remediation GW Extraction System\IAP Effectiveness Monitoring Report\Tables\Table 2-2 Baseline and Post Startup GW Analytical Results Page 3 of 10 ug/L ug/L ug/L ug/L mg-N/L mg-N/L mg/L ug/L ug/L mg/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L mg/L ug/L ug/L ug/L mg/L ug/L ug/L ug/L 50 1 NE 100 10 NE NE 20 20 NE 0.2*0.3*1000 NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE 22.9 NE 1 4.26 NE 3.63 5 NE NE 5.92 0.2 1.33 10 NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE 13 NE 1.3 4.67 NE 4.19 5 NE NE 10.7 0.2 1.45 43.2 NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE 9.9 0.2 3.7 3.2 NE 0.17 5.15 0.5 NE 12 0.1 0.82 16 NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Calcium Chromium Cobalt Copper Fluoride Iron Lead Lithium (0.45u)(0.45u)(0.45u)(0.45u)(0.45u)(0.45u)(0.45u)(0.45u)(0.45u)(0.45u)(0.45u)(0.45u)(0.45u)(0.45u)(0.45u) EX-01 03/21/2018 4550 0.05 0.245 j 26.1 NA 0.055 8.27 <1 NA 17.5 0.511 0.255 j 23 47 <1 1.78 101 4.65 10100 1.95 NA 0.552 j 12.4 2.32 NA 80 0.351 j 40 EX-01 06/13/2018 4490 0.025 j 0.45 j 35.4 NA 0.0051 j 8.52 <1 NA 17.9 0.198 j 0.235 j 26 40 1.41 1.57 102 3.99 10100 0.967 j NA 1.59 12 0.91 j NA 526 <1 41 EX-02 03/21/2018 4460 0.044 j 0.155 j 13.9 NA 0.015 6.98 <1 NA 15.7 0.516 0.214 j 20 201 <1 3.14 187 8.6 11100 1.77 NA 0.517 j 15.9 1.8 NA 17 <1 27 EX-02 06/13/2018 4220 0.035 j 0.228 j 15.6 NA 0.014 6.46 0.386 j NA 14.1 0.382 0.142 j 18 194 <1 2.92 173 7.47 10900 1.64 NA 0.626 j 16.3 0.557 j NA 32 <1 24 EX-03 03/21/2018 4930 0.035 j 0.201 j 8 NA 0.021 6.42 <1 NA 16.9 0.579 0.282 j 24 95 <1 2.52 228 5.61 9640 1.41 NA 0.758 j 21.6 <1 NA 22 <1 19 EX-03 06/13/2018 4850 0.028 j 0.185 j 13.3 NA 0.015 4.79 0.336 j NA 14.1 0.643 0.176 j 12 88 <1 2.68 203 3.12 9700 0.786 j NA 0.566 j 31.2 <1 NA 22 <1 13 EX-04 03/21/2018 7110 <0.05 0.799 j 37.9 NA 0.0038 j 6 <1 NA 15.1 0.109 j 0.645 15 49 2.99 1.2 290 1.47 10800 <1 NA 2.76 60.1 0.484 j NA 1450 <1 16 EX-04 06/13/2018 7000 0.03 j 0.163 j 12.7 NA 0.0093 j 5.36 <1 NA 14.1 0.652 0.191 j 13 68 <1 2.27 308 1.76 11100 0.624 j NA 0.631 j 78.1 0.699 j NA 24 <1 15 EX-05 03/21/2018 5770 0.021 j 0.123 j 10.4 NA 0.0039 j 4.91 0.463 j NA 13.3 0.659 0.339 26 61 <1 3.17 260 1.07 11400 <1 NA <1 94.8 1.26 NA 37 <1 10 EX-05 06/13/2018 5610 <0.05 0.13 j 15.2 NA <0.01 4.56 1.22 NA 12.5 0.692 0.129 j 14 59 <1 2.8 250 0.455 j 11200 <1 NA 0.373 j 93.7 0.51 j NA 27 <1 9 EX-06 03/21/2018 8400 0.019 j 0.091 j 26.4 NA 0.009 j 8.99 <1 NA 15.6 0.513 0.234 j 9 17 <1 1.54 254 0.996 j 9820 0.996 j NA 0.398 j 126 0.936 j NA 83 <1 18 EX-06 06/13/2018 8120 0.026 j 0.117 j 24.8 NA 0.0038 j 8.47 <1 NA 14.9 0.739 0.169 j 8 14 <1 1.11 267 1.22 10100 0.866 j NA 0.739 j 131 0.759 j NA 27 <1 19 EX-07 03/21/2018 2280 <0.05 0.19 j 21.7 NA 0.036 8.37 <1 NA 16.4 0.37 0.328 17 34 <1 4.45 127 0.807 j 3640 <1 NA 0.507 j 48.2 0.74 j NA 875 <1 30 EX-07 06/13/2018 2760 0.09 0.136 j 86.2 NA 0.042 9.08 <1 NA 16.5 0.505 0.196 j 16 36 <1 2.38 147 0.8 j 4940 0.695 j NA <1 52.6 1.02 NA 263 <1 33 EX-08 03/21/2018 493 0.13 <1 6.07 NA 0.154 6.78 <1 NA 16 0.607 0.236 j 6 21 <1 0.724 j 222 1.52 586 0.428 j NA <1 1.8 0.65 j NA 154 <1 20 EX-08 06/13/2018 1060 0.16 <1 8.87 NA 0.155 7.86 <1 NA 15.8 0.743 0.243 j 7 25 <1 0.635 j 328 1.46 2080 0.735 j NA <1 5.07 <1 NA 49 <1 24 EX-09 03/21/2018 1170 0.024 j 0.097 j 9.3 NA 0.095 9.39 <1 NA 20.1 0.551 0.834 18 65 <1 1.15 387 1.67 1710 0.959 j NA <1 5.45 0.841 j NA 122 <1 28 EX-09 06/13/2018 1120 0.16 <1 14.7 NA 0.059 10.5 <1 NA 21.4 0.45 0.197 j 12 86 <1 0.84 j 487 2.05 2050 1.15 NA <1 5.91 0.743 j NA 26 <1 23 EX-10 03/21/2018 964 0.05 0.509 j 22 M2 NA 0.146 9.32 <1 NA 17 0.118 j 1.72 30 14 0.531 j 1.77 11 0.957 j 3950 <1 NA 0.745 j 9.29 8.72 NA 83 <1 144 EX-10 06/13/2018 1280 0.13 0.284 j 34.9 NA 0.14 7.05 <1 NA 16.4 0.116 j 0.221 j 17 14 <1 0.946 j 8 1.4 4160 0.377 j NA 1.05 8.42 1.87 NA 18 <1 147 EXOB-01 12/15/2017 3230 <0.2 0.62 59 NA <0.02 8.7 0.19 j NA 18.8 0.06 j 0.27 j 186 <100 0.74 1.3 24.4 0.49 8600 0.68 NA 1.9 182 1.8 NA 1080 0.046 j NA EXOB-01 12/27/2017 2950 <0.2 0.96 47.1 NA <0.02 8.36 0.31 j NA 19 0.062 j <0.3 70.8 <100 0.63 1.6 27.9 0.58 7640 0.47 NA 0.2 j 391 0.59 NA 1830 <0.1 NA EXOB-01 01/23/2018 3060 <0.2 1.1 35.4 NA 0.028 8.7 <0.5 NA 19 <0.1 <0.3 B 33.2 <100 0.66 2.8 28.6 0.15 7520 0.4 NA 1.2 B 636 <0.5 NA 3740 <0.1 NA EXOB-01 04/18/2018 3100 <0.2 3.1 18.6 NA 0.013 j 8.69 <0.5 NA 19.4 <0.1 IS 0.42 23 B <100 0.22 j 18.9 27.2 0.089 j 7680 0.09 NA 1.7 882 0.65 NA 4630 0.029 j NA EXOB-02 12/14/2017 5300 <0.2 0.18 j 14.4 NA <0.02 5.21 9 NA 10.1 0.76 B <0.3 14.4 M1 <100 <0.5 2.2 262 1.2 11000 0.71 NA 0.44 j 134 0.76 NA 98.3 0.055 j NA EXOB-02 12/27/2017 4700 <0.2 0.11 j 12.9 NA <0.02 <50 D3 9.5 NA 12.4 j,D3 1.1 <0.3 15.5 97.4 j,M1 <0.5 3.3 207 M1 1.2 7550 M1 0.75 NA 0.2 j 138 1.7 NA 175 M1 0.12 NA EXOB-02 01/23/2018 4680 <0.2 <0.5 11.8 NA <0.02 <10 D3 8.9 NA 10.3 M1 0.74 <0.3 15.6 B <100 <0.5 3.5 207 1.2 7560 0.66 NA <0.5 B 133 1 NA 66.1 0.1 NA EXOB-02 4/17/2018 4630 <0.2 0.1 j 10.3 NA <0.02 3.4 j 20.9 NA 7.46 0.88 j,D3 <0.3 16.4 j,D3 <200 D3 <0.5 4.3 208 1.9 7850 0.39 NA 0.25 j 138 0.94 B NA <100 D3 0.11 NA GWA-11D 07/18/2015 190 <0.2 2.3 13 NA 0.17 9.18 <0.5 NA 18 0.041 j 0.75 j 14 <100 0.82 2 20 <0.2 29 j 0.067 j NA 0.37 j 1.5 6.8 NA 570 0.48 NA GWA-11D 10/02/2015 270 <0.2 2.9 24.5 NA 0.094 10.3 <0.5 NA 21 0.088 j 4.2 55 <100 3 3.1 22 <0.2 29 j 0.14 NA 4.5 2.3 4.8 NA 350 0.67 NA GWA-11D 03/29/2016 221 <0.2 2.8 j 29.2 NA 0.069 8.47 <5 NA 20.6 <1 <3 24.8 <100 2.2 j 3.8 20 0.79 j <50 <0.8 NA 2.7 j 2.4 3.2 j NA 1000 <1 NA GWA-11D 05/09/2016 246 <0.2 <5 10 NA <0.02 7.9 <5 NA 21.9 <1 <3 19.8 <100 <5 5.6 21.5 0.27 j 49.9 j <0.8 NA 2.2 j 2 <5 NA 2680 <1 NA GWA-11D 09/21/2016 200 <0.2 0.76 13.8 NA <0.02 6.55 <0.5 NA 20.6 <0.1 0.74 15.2 <100 0.48 j 3.8 22.3 0.023 j 53.5 <0.08 NA 0.84 2.1 0.16 j NA 2270 <0.1 NA GWA-11D 11/17/2016 178 <0.2 0.52 13.3 NA <0.02 6.5 <0.5 NA 21 0.027 j 0.13 j 39.1 <100 0.51 2.4 20.7 0.15 95 <0.08 NA 2.3 2.7 1.3 NA 1710 <0.1 NA GWA-11D 01/27/2017 174 0.084 j,B 0.56 13.7 NA <0.02 6.5 <0.5 NA 21.5 <0.1 0.25 j 23.9 B <100 0.8 2.3 18.5 0.17 104 <0.08 NA 3.7 2.6 1.9 NA 1680 <0.1 NA GWA-11D 04/05/2017 176 <0.2 0.58 13.6 NA <0.02 6.7 <0.5 NA 22.8 <0.1 0.41 20.8 <100 0.52 1.6 22.4 0.12 129 <0.08 NA 2 2.3 0.74 NA 1340 <0.1 NA GWA-11D 07/20/2017 180 <0.2 0.65 22.7 NA 0.018 j 6.41 <0.5 NA 21.1 0.033 j 1.6 25.5 <100 0.43 j 1.9 13.5 0.36 160 <0.08 NA 0.88 3.2 <0.5 NA 1760 <0.1 NA GWA-11D 10/12/2017 173 <0.2 0.6 19.7 NA 0.035 6.63 <0.5 NA 23.6 0.096 j 1.8 22.4 <100 0.62 1.1 16.1 0.35 174 0.052 j NA 1.3 3.5 0.68 NA 943 0.049 j,B NA GWA-11D 01/16/2018 187 <0.2 1.5 37.7 NA 0.028 6.5 <0.5 NA 24.5 <0.1 0.27 j 18.6 <100 0.48 j 2.1 17.1 0.28 264 <0.08 NA 1.2 3.3 0.18 j NA 2630 <0.1 NA GWA-11D 04/19/2018 159 <0.2 0.8 31.7 NA <0.02 6.44 <0.5 NA 22.3 <0.1 0.85 11.8 64.6 j 0.19 j 2.9 21.3 0.34 245 <0.08 NA 6.1 4.1 0.48 j NA 3410 0.058 j NA GWA-20D 03/30/2016 1040 <0.2 3.1 j 15.6 NA 0.01 j 10.4 <5 NA 36.5 <1 <3 70.1 <100 <5 2.1 63 0.42 j 5300 0.67 j NA <5 8.5 3.9 j NA 600 <1 NA GWA-20D 05/11/2016 2440 <0.2 <5 18.9 NA <0.02 9.26 <5 NA 33.9 0.15 j 1.3 j 23.4 <100 <5 10.7 60.7 0.65 j 7400 <0.8 NA <5 28.7 1.1 j NA 1050 <1 NA GWA-20D 09/21/2016 1900 0.076 j 0.36 j 26.4 NA 0.053 9.35 0.86 NA 29.6 0.19 <0.3 25.4 <100 <0.5 4.5 70.3 0.88 8810 1.6 NA 0.91 6.6 1.7 NA 214 0.1 NA GWA-20D 11/16/2016 1940 0.11 j 0.34 j 36.2 NA 0.022 9.7 0.8 NA 28.3 0.26 0.25 j 23.4 57.2 j <0.5 3.5 71.4 1.2 8500 1.7 NA 0.56 4.7 0.82 NA 123 0.14 NA GWA-20D 01/25/2017 2220 <0.2 0.33 j 39.2 NA 0.022 10.1 1.1 NA 28.1 0.23 0.21 j,B 26.7 93.3 j 0.1 j 3.1 85.4 1.3 9720 1.9 NA 0.58 4.7 5 NA 117 1.9 NA GWA-20D 04/04/2017 2290 0.094 j 0.39 j 34.6 NA <0.02 9.1 0.9 NA 24.3 0.2 <0.3 24.6 <100 <0.5 3.3 63.4 1.2 9360 1.7 NA 0.59 B 3.3 1.2 NA 57.9 0.16 NA GWA-20D 07/20/2017 2050 <0.2 0.28 j 26.2 NA 0.04 8.84 1.1 NA 24.7 0.13 0.099 j 27.8 B 58.4 j <0.5 3.1 47.3 1.4 8580 1.8 NA 0.36 j 3 4.9 NA 49 j 0.13 NA INORGANIC PARAMETERS (TOTAL CONCENTRATION) CONTINUED INORGANIC PARAMETERS (DISSOLVED CONCENTRATION WITH FILTER SIZE) Nitrate (as N)NickelMolybdenumMercuryManganese ZincVanadiumThalliumSodiumSilverSeleniumPotassiumNitrate + NitriteSample ID Sample Collection Date TABLE 2-2 CAMA BASELINE AND POST STARTUP GROUNDWATER ANALYTICAL RESULTS BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS LLC, BELEWS CREEK, NC P:\Duke Energy Carolinas\20. BELEWS CREEK\14.CCP Accelerated Remediation GW Extraction System\IAP Effectiveness Monitoring Report\Tables\Table 2-2 Baseline and Post Startup GW Analytical Results Page 4 of 10 mg/L ug/L ug/L ug/L ug/L mg/L mg/L ug/L ug/L mg/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE Magnesium Manganese Mercury Molybdenum Nickel Phosphorus Potassium Selenium Silver Sodium Strontium Thallium Vanadium Zinc Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Chromium Cobalt Copper Iron Lead Manganese Mercury Molybdenum (0.45u)(0.45u)(0.45u)(0.45u)(0.45u)(0.45u)(0.45u)(0.45u)(0.45u)(0.45u)(0.45u)(0.45u)(0.45u)(0.45u)(0.1u)(0.1u)(0.1u)(0.1u)(0.1u)(0.1u)(0.1u)(0.1u)(0.1u)(0.1u)(0.1u)(0.1u)(0.1u)(0.1u)(0.1u) EX-01 03/21/2018 NA 4300 <0.05 0.462 j 27.4 <0.05 NA <1 NA NA 871 0.51 0.168 j 30 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA EX-01 06/13/2018 NA 4220 <0.05 0.288 j 29.7 NA NA <1 NA NA 882 0.187 j <0.3 23 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA EX-02 03/21/2018 NA 4430 <0.05 0.368 j 18.9 <0.05 NA <1 NA NA 702 0.248 M2 0.198 j 29 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA EX-02 06/13/2018 NA 4270 <0.05 0.098 j 14 NA NA 0.589 j NA NA 667 0.296 <0.3 19 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA EX-03 03/21/2018 NA 4330 <0.05 0.12 j 8.34 <0.05 NA <1 NA NA 684 0.469 0.196 j 17 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA EX-03 06/13/2018 NA 4650 <0.05 0.14 j 12.4 NA NA 0.642 j NA NA 564 0.433 <0.3 15 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA EX-04 03/21/2018 NA 7240 <0.05 0.512 j 39.1 <0.05 NA <1 NA NA 544 0.124 j <0.3 16 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA EX-04 06/13/2018 NA 7590 <0.05 0.174 j 12.5 NA NA 0.524 j NA NA 566 0.499 <0.3 15 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA EX-05 03/21/2018 NA 5840 <0.05 <1 9.17 <0.05 NA 0.496 j NA NA 572 0.494 <0.3 22 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA EX-05 06/13/2018 NA 5460 <0.05 0.094 j 10.2 NA NA 1.33 NA NA 558 0.598 <0.3 18 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA EX-06 03/21/2018 NA 8850 <0.05 <1 23.5 <0.05 NA <1 NA NA 869 0.509 0.14 j 11 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA EX-06 06/13/2018 NA 8570 <0.05 <1 23.1 NA NA <1 NA NA 845 0.651 <0.3 12 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA EX-07 03/21/2018 NA 2330 <0.05 0.178 j 22.8 <0.05 NA <1 NA NA 572 0.252 0.222 j 18 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA EX-07 06/13/2018 NA 2830 <0.05 0.096 j 29.6 NA NA <1 NA NA 703 0.427 <0.3 19 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA EX-08 03/21/2018 NA 460 <0.05 0.094 j 6.61 <0.05 NA <1 NA NA 327 0.35 0.218 j 9 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA EX-08 06/13/2018 NA 1210 <0.05 <1 8.63 NA NA <1 NA NA 495 0.658 <0.3 11 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA EX-09 03/21/2018 NA 1200 <0.05 <1 10.1 <0.05 NA <1 NA NA 633 0.348 0.262 j 19 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA EX-09 06/13/2018 NA 1440 <0.05 <1 11.2 NA NA <1 NA NA 695 0.566 <0.3 17 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA EX-10 03/21/2018 NA 906 <0.05 0.54 j 22.6 <0.05 NA <1 NA NA 519 0.113 j,M2 2.35 37 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA EX-10 06/13/2018 NA 1310 <0.05 0.279 j 33.6 NA NA <1 NA NA 588 0.084 j 0.129 j 19 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA EXOB-01 12/15/2017 NA 2970 <0.2 0.67 57.6 NA NA 0.2 j NA NA 829 0.066 j 0.16 j 188 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA EXOB-01 12/27/2017 NA 2740 <0.2 0.67 45.5 NA NA <0.5 NA NA 760 0.067 j <0.3 55.3 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA EXOB-01 01/23/2018 NA 2690 <0.2 0.84 37.1 <0.05 NA <0.5 NA NA 764 <0.1 <0.3 43.2 B NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA EXOB-01 04/18/2018 NA 2890 <0.2 1.1 29.4 <0.05 NA <0.5 NA NA 729 0.032 j 0.2 j 33.5 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA EXOB-02 12/14/2017 NA 7720 <0.2 0.15 j 14.3 NA NA 1.8 NA NA 573 0.79 <0.3 14.8 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA EXOB-02 12/27/2017 NA 4740 M1 <0.2 0.083 j 13.4 NA NA 2.7 NA NA 435 M1 0.9 <0.3 12.5 M1 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA EXOB-02 01/23/2018 NA 4580 <0.2 <0.5 12.3 <0.05 NA 2.9 NA NA 433 0.93 <0.3 11.6 B NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA EXOB-02 4/17/2018 NA 4520 <0.2 <0.5 10.1 <0.05 NA 15 NA NA 380 0.87 0.11 j 16.2 j,D3,B NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA GWA-11D 07/18/2015 NA 180 <0.2 2.3 12.2 NA NA <0.5 NA NA 270 0.029 j 0.76 j 16 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA GWA-11D 10/02/2015 NA 240 <0.2 3 22.3 NA NA <0.5 NA NA 300 0.033 j <1 42 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA GWA-11D 03/29/2016 NA 220 <0.2 2.4 j 24.5 NA NA <5 NA NA 290 <1 <3 12 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA GWA-11D 05/09/2016 NA 225 <0.2 <5 11.4 NA NA <5 NA NA 341 <1 <3 19.6 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA GWA-11D 09/21/2016 NA 221 <0.2 1.1 13.4 NA NA <0.5 NA NA 415 <0.1 0.12 j 27.6 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA GWA-11D 11/17/2016 NA 190 <0.2 0.72 17.4 NA NA <0.5 NA NA 452 0.026 j <0.3 67.1 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA GWA-11D 01/27/2017 NA 195 <0.2 0.86 31.7 NA NA <0.5 NA NA 473 0.046 j 0.11 j,B 38.6 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA GWA-11D 04/05/2017 NA 182 <0.2 0.67 27.2 NA NA <0.5 NA NA 497 0.027 j <0.3 31.5 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA GWA-11D 07/20/2017 NA 158 <0.2 0.58 26 NA NA <0.5 NA NA 455 0.028 j 0.087 j 21.3 S1 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA GWA-11D 10/12/2017 NA 160 <0.2 0.58 26.9 NA NA <0.5 NA NA 492 0.035 j 0.1 j 22.3 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA GWA-11D 01/16/2018 NA 172 <0.2 0.71 27.4 <0.05 NA <0.5 NA NA 524 <0.1 <0.3 19.9 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA GWA-11D 04/19/2018 NA 170 <0.2 0.38 j 41.2 <0.05 NA <0.5 NA NA 485 <0.1 0.28 j 4.6 j NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA GWA-20D 03/30/2016 NA 980 <0.2 3.1 j 15.5 NA NA <5 NA NA 670 <1 <3 61 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA GWA-20D 05/11/2016 NA 1850 <0.2 <5 21 NA NA <5 NA NA 868 0.47 j 0.84 j 16.1 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA GWA-20D 09/21/2016 NA 1900 <0.2 0.35 j 25.6 NA NA 0.96 NA NA 1000 0.19 <0.3 29.2 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA GWA-20D 11/16/2016 NA 1800 <0.2 0.35 j 34.2 NA NA 0.88 NA NA 956 0.26 0.13 j,B 23.1 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA GWA-20D 01/25/2017 NA 2140 0.3 0.31 j 34.8 NA NA 0.75 NA NA 1120 0.21 0.21 j 91.1 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA GWA-20D 04/04/2017 NA 2090 <0.2 0.31 j 32.7 NA NA 0.71 NA NA 932 0.25 <0.3 23.4 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA GWA-20D 07/20/2017 NA 1980 <0.2 0.28 j 28.5 NA NA 0.7 NA NA 875 0.16 0.082 j 26.3 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Sample ID Sample Collection Date INORGANIC PARAMETERS (DISSOLVED CONCENTRATION WITH FILTER SIZE) CONTINUED TABLE 2-2 CAMA BASELINE AND POST STARTUP GROUNDWATER ANALYTICAL RESULTS BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS LLC, BELEWS CREEK, NC P:\Duke Energy Carolinas\20. BELEWS CREEK\14.CCP Accelerated Remediation GW Extraction System\IAP Effectiveness Monitoring Report\Tables\Table 2-2 Baseline and Post Startup GW Analytical Results Page 5 of 10 ug/L ug/L ug/L ug/L ug/L ug/L pCi/L pCi/L pCi/L ug/mL ug/mL ug/mL ug/mL ug/mL ug/mL ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L mg/L ug/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L NE NE NE NE NE NE NE NE 5^NE NE NE NE NE 0.03^NE NE 10 NE NE NE NE NE NE NE NE NE NE 2 NE NE NE NE NE NE NE NE NE NE NE NE NE 8.74 NE NE NE NE NE 0.0005 NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE 1.1 NE NE NE NE NE 0.0005 NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE 0.466 NE NE NE NE NE 0.00054 NE NE NE NE NE NE NE NE NE NE NE 5 NE NE NE NE NE NE NE Nickel Selenium Strontium Thallium Vanadium Zinc Uranium 238 (0.1u)(0.1u)(0.1u)(0.1u)(0.1u)(0.1u)DIS EX-01 03/21/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5 NA <1 NA NA <0.05 NA NA EX-01 06/13/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5 NA <0.5 NA NA <0.05 NA NA EX-02 03/21/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5 NA <1 NA NA <0.05 R1 NA NA EX-02 06/13/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5 NA <1 NA NA <0.05 NA NA EX-03 03/21/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5 NA <1 NA NA <0.05 NA NA EX-03 06/13/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5 NA <1 NA NA <0.05 NA NA EX-04 03/21/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5 NA <1 NA NA <0.05 NA NA EX-04 06/13/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5 NA <1 NA NA <0.05 NA NA EX-05 03/21/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5 NA <1 NA NA <0.05 NA NA EX-05 06/13/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5 NA <1 NA NA <0.05 NA NA EX-06 03/21/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5 NA <1 NA NA <0.05 NA NA EX-06 06/13/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5 NA <1 NA NA <0.05 NA NA EX-07 03/21/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5 NA <1 NA NA <0.05 NA NA EX-07 06/13/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5 NA 0.2345 j NA NA <0.05 NA NA EX-08 03/21/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5 NA <0.2 NA NA <0.05 NA NA EX-08 06/13/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5 NA 0.0992 j NA NA <0.05 NA NA EX-09 03/21/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5 NA <0.5 NA NA <0.05 NA NA EX-09 06/13/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5 NA 0.26 j NA NA <0.05 NA NA EX-10 03/21/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5 NA 0.388 j NA NA <0.05 NA NA EX-10 06/13/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5 NA <0.5 NA NA <0.05 NA NA EXOB-01 12/15/2017 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5 NA NA NA NA NA NA NA EXOB-01 12/27/2017 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5 NA NA NA NA NA NA NA EXOB-01 01/23/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5 NA <0.1 NA NA <0.05 NA NA EXOB-01 04/18/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5 NA 0.11 NA NA <0.05 NA NA EXOB-02 12/14/2017 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5 NA NA NA NA NA NA NA EXOB-02 12/27/2017 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5 NA NA NA NA NA NA NA EXOB-02 01/23/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5 NA <0.1 NA NA <0.05 NA NA EXOB-02 4/17/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5 NA 0.056 j NA NA <0.05 NA NA GWA-11D 07/18/2015 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5 NA NA NA NA NA NA NA GWA-11D 10/02/2015 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5 NA NA NA NA NA NA NA GWA-11D 03/29/2016 NA NA NA NA NA NA 0.345 0.467 0.812 NA NA NA NA <0.0005 <0.0005 NA NA NA NA NA NA NA NA NA NA NA <5 NA NA NA NA NA NA NA GWA-11D 05/09/2016 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.005 <0.005 NA NA NA NA NA NA NA NA NA NA NA <5 NA NA NA NA NA NA NA GWA-11D 09/21/2016 NA NA NA NA NA NA -0.085 0.849 0.764 NA NA NA NA 0.00006 j 0.00006 j NA NA NA NA NA NA NA NA NA NA NA <5 NA NA NA NA NA NA NA GWA-11D 11/17/2016 NA NA NA NA NA NA 0.217 0.52 0.737 NA NA NA NA <0.0005 <0.0005 NA NA NA NA NA NA NA NA NA NA NA <5 NA NA NA NA NA NA NA GWA-11D 01/27/2017 NA NA NA NA NA NA 0.0616 0.22 0.2816 NA NA NA NA <0.0005 <0.0005 NA NA NA NA NA NA NA NA NA NA NA <5 NA NA NA NA NA NA NA GWA-11D 04/05/2017 NA NA NA NA NA NA 0.277 -0.175 0.102 NA NA NA NA <0.0005 <0.0005 NA NA NA NA NA NA NA NA NA NA NA <5 NA NA NA NA NA NA NA GWA-11D 07/20/2017 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5 NA NA NA NA NA NA NA GWA-11D 10/12/2017 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5 NA NA NA NA NA NA NA GWA-11D 01/16/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5 NA 0.084 j NA NA <0.05 NA NA GWA-11D 04/19/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5 NA <0.1 NA NA <0.05 NA NA GWA-20D 03/30/2016 NA NA NA NA NA NA 0.263 1.19 1.453 NA NA NA NA <0.005 <0.005 NA NA NA NA NA NA NA NA NA NA NA <5 NA NA NA NA NA NA NA GWA-20D 05/11/2016 NA NA NA NA NA NA 1.77 1.64 3.41 NA NA NA NA 0.00007 j 0.00007 j NA NA NA NA NA NA NA NA NA NA NA <5 NA NA NA NA NA NA NA GWA-20D 09/21/2016 NA NA NA NA NA NA 2.06 1.76 3.82 NA NA NA NA 0.00011 j 0.00011 j NA NA NA NA NA NA NA NA NA NA NA <5 NA NA NA NA NA NA NA GWA-20D 11/16/2016 NA NA NA NA NA NA 2.5 1.35 3.85 NA NA NA NA 0.00013 j 0.00013 j NA NA NA NA NA NA NA NA NA NA NA <5 NA NA NA NA NA NA NA GWA-20D 01/25/2017 NA NA NA NA NA NA 1.88 0.982 2.862 NA NA NA NA 0.00013 j 0.00013 j NA NA NA NA NA NA NA NA NA NA NA <5 NA NA NA NA NA NA NA GWA-20D 04/04/2017 NA NA NA NA NA NA 3 2.22 5.22 NA NA NA NA 0.00011 j 0.00011 j NA NA NA NA NA NA NA NA NA NA NA <5 NA NA NA NA NA NA NA GWA-20D 07/20/2017 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5 NA NA NA NA NA NA NA As(V)As(III) RADIONUCLIDES BromideBOD SPECIATIONS Se(VI)Se(IV)Mn(IV)Mn(II)Fe(III)Uranium 238 Uranium 236 Uranium 234 Uranium 233 Total Radium OTHER PARAMETERS Total Organic Halides SilicaPhosphorusNitrateFluorideCODSample ID Sample Collection Date Carbonate AlkalinityFe(II)Total Uranium HardnessCr(VI)Radium 228 Radium 226 INORGANIC PARAMETERS (DISSOLVED CONCENTRATION WITH FILTER SIZE) CONTINUED TABLE 2-2 CAMA BASELINE AND POST STARTUP GROUNDWATER ANALYTICAL RESULTS BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS LLC, BELEWS CREEK, NC P:\Duke Energy Carolinas\20. BELEWS CREEK\14.CCP Accelerated Remediation GW Extraction System\IAP Effectiveness Monitoring Report\Tables\Table 2-2 Baseline and Post Startup GW Analytical Results Page 6 of 10 Reporting Units S.U.ft Deg C umhos/cm mg/L mV mV NTUs mg/L 15A NCAC 02L Standard 6.5-8.5 NE NE NE NE NE NE NE NE Provisional Background Threshold Values (Shallow Unit)5.1-6.0 NE NE NE NE NE NE NE NE Provisional Background Threshold Values (Deep Unit)5.2-7.0 NE NE NE NE NE NE NE NE Provisional Background Threshold Values (Bedrock Unit)6.3-6.5 NE NE NE NE NE NE NE NE Associated UnitLocation DescriptionSample ID Sample Collection Date LongitudeLatitude Bottom of Well Screen Elevation (FEET) Top of Well Screen Elevation (FEET) Ground Elevation (FEET) Top of Casing Elevation (FEET) Well Screen Location Sample Media Location With Respect to Groundwater Flow Direction Sample Location Aquifer Name pH FIELD PARAMETERS Water Level Dissolved Oxygen Spec CondTemp Ferrous IronTurbidityEh Oxidation Reduction Potential GWA-20D West of Ash Basin - North Ash Basin Downgradient Water Transition Zone Deep 773.72 770.44 715.44 710.44 36.29652000 -80.07987000 10/10/2017 5.1 27.15 21 1668 0.90 148 353 0.2 NM GWA-20D West of Ash Basin - North Ash Basin Downgradient Water Transition Zone Deep 773.72 770.44 715.44 710.44 36.29652000 -80.07987000 01/16/2018 5.3 27.15 12 1555 1.80 118 323 2.2 NM GWA-20D West of Ash Basin - North Ash Basin Downgradient Water Transition Zone Deep 773.72 770.44 715.44 710.44 36.29652000 -80.07987000 04/16/2018 5.2 27.78 15 1614 0.60 95 300 0.4 NM GWA-20SA West of Ash Basin - North Ash Basin Downgradient Water Shallow Shallow -------10.25 -25.25 ------06/08/2016 5.4 NM 18 169 0.30 312 517 5.2 NM GWA-20SA West of Ash Basin - North Ash Basin Downgradient Water Shallow Shallow -------10.25 -25.25 ------09/21/2016 5.2 NM 25 1703 1.70 91 296 2.2 NM GWA-20SA West of Ash Basin - North Ash Basin Downgradient Water Shallow Shallow -------10.25 -25.25 ------11/16/2016 5.1 NM 14 1687 1.00 360 565 7.6 NM GWA-20SA West of Ash Basin - North Ash Basin Downgradient Water Shallow Shallow -------10.25 -25.25 ------01/25/2017 4.9 NM 19 1689 3.20 393 598 0.0 NM GWA-20SA West of Ash Basin - North Ash Basin Downgradient Water Shallow Shallow -------10.25 -25.25 ------04/04/2017 4.9 24.00 21 1709 1.50 436 641 4.2 NM GWA-20SA West of Ash Basin - North Ash Basin Downgradient Water Shallow Shallow -------10.25 -25.25 ------07/19/2017 5.0 26.15 31 1727 0.60 285 490 8.9 NM GWA-20SA West of Ash Basin - North Ash Basin Downgradient Water Shallow Shallow -------10.25 -25.25 ------10/10/2017 5.0 26.62 21 1675 0.20 317 522 0.1 NM GWA-20SA West of Ash Basin - North Ash Basin Downgradient Water Shallow Shallow -------10.25 -25.25 ------01/16/2018 5.2 26.36 12 1581 3.40 425 630 3.9 NM GWA-20SA West of Ash Basin - North Ash Basin Downgradient Water Shallow Shallow -------10.25 -25.25 ------04/16/2018 5.6 26.96 16 1647 1.00 184 389 8.2 NM GWA-21D West of Ash Basin - North Ash Basin Downgradient Water Transition Zone Deep 734.79 731.67 707.07 702.07 36.29742000 -80.08120000 03/30/2016 5.1 NM 16 505 2.60 195 400 2.4 NM GWA-21D West of Ash Basin - North Ash Basin Downgradient Water Transition Zone Deep 734.79 731.67 707.07 702.07 36.29742000 -80.08120000 05/10/2016 5.1 NM 17 512 2.10 264 469 6.9 NM GWA-21D West of Ash Basin - North Ash Basin Downgradient Water Transition Zone Deep 734.79 731.67 707.07 702.07 36.29742000 -80.08120000 09/21/2016 4.9 NM 21 629 3.20 296 501 3.4 NM GWA-21D West of Ash Basin - North Ash Basin Downgradient Water Transition Zone Deep 734.79 731.67 707.07 702.07 36.29742000 -80.08120000 11/18/2016 5.2 NM 15 707 3.40 271 476 1.0 NM GWA-21D West of Ash Basin - North Ash Basin Downgradient Water Transition Zone Deep 734.79 731.67 707.07 702.07 36.29742000 -80.08120000 01/27/2017 5.0 NM 13 727 3.30 280 485 3.0 NM GWA-21D West of Ash Basin - North Ash Basin Downgradient Water Transition Zone Deep 734.79 731.67 707.07 702.07 36.29742000 -80.08120000 04/05/2017 5.0 17.44 15 747 3.30 335 540 1.0 NM GWA-21D West of Ash Basin - North Ash Basin Downgradient Water Transition Zone Deep 734.79 731.67 707.07 702.07 36.29742000 -80.08120000 07/20/2017 5.0 16.15 21 782 3.30 228 433 2.5 NM GWA-21D West of Ash Basin - North Ash Basin Downgradient Water Transition Zone Deep 734.79 731.67 707.07 702.07 36.29742000 -80.08120000 10/10/2017 5.3 17.22 19 796 4.20 130 335 7.3 NM GWA-21D West of Ash Basin - North Ash Basin Downgradient Water Transition Zone Deep 734.79 731.67 707.07 702.07 36.29742000 -80.08120000 01/16/2018 5.5 17.94 13 821 2.80 275 480 3.5 NM GWA-21D West of Ash Basin - North Ash Basin Downgradient Water Transition Zone Deep 734.79 731.67 707.07 702.07 36.29742000 -80.08120000 04/19/2018 4.9 17.80 19 853 2.60 114 319 0.4 NM GWA-27D West of Ash Basin - North Ash Basin Downgradient Water Transition Zone Deep 758.30 755.73 717.73 712.73 36.29614000 -80.08119000 06/16/2016 5.7 NM 21 1500 1.10 198 403 2.0 NM GWA-27D West of Ash Basin - North Ash Basin Downgradient Water Transition Zone Deep 758.30 755.73 717.73 712.73 36.29614000 -80.08119000 07/20/2017 5.1 14.01 20 1507 0.40 340 545 3.3 NM GWA-27D West of Ash Basin - North Ash Basin Downgradient Water Transition Zone Deep 758.30 755.73 717.73 712.73 36.29614000 -80.08119000 10/10/2017 5.0 14.60 19 1551 0.40 466 671 0.7 NM GWA-27D West of Ash Basin - North Ash Basin Downgradient Water Transition Zone Deep 758.30 755.73 717.73 712.73 36.29614000 -80.08119000 01/16/2018 5.1 14.75 12 1483 0.50 119 324 5.1 NM GWA-27D West of Ash Basin - North Ash Basin Downgradient Water Transition Zone Deep 758.30 755.73 717.73 712.73 36.29614000 -80.08119000 04/18/2018 5.2 14.95 21 1531 0.50 -36 169 2.2 NM Prepared by: ALA Checked by: CDE Notes: - Bold highlighted concentration indicates exceedance of the 15A NCAC 02L .0202 Standard or the IMAC. (Effective date for 15A NCAC 02L .0202 Standard and IMAC is April 1, 2013)NTU - Nephelometric turbidity unit * - Interim Maximum Allowable Concentrations (IMACs) of the 15A NCAC 02L Standard, Appendix 1, April, 1, 2013.NA - Not analyzed < - concentration not detected at or above the adjusted reporting limit.NE - Not established 1g - Result confirmed by second analysis performed out of hold.NM - Not measured E - Analyte concentration exceeded the calibration range. The reported result is estimated.pCi/L - picocuries per liter L3 - Analyte recovery in the laboratory control sample (LCS) exceeded quality control (QC) limits. Analyte presence below reporting limits in associated samples. Results unaffected by high bias.R1 - Relative Percent Difference (RPD) value was outside control limits. U – Analyte was analyzed for, but not detected above the MDC.P4 - Sample field preservation does not meet EPA or method recommendations for this analysis. S1 – Data review findings indicate result may be unreliable. Use with caution.D3 - Sample was diluted due to the presence of high levels of non-target analytes or other matrix interference. Deg C - Degrees Celsius Spec Cond - Specific Conductance j - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit.S.U. - Standard Unit M6 - Matrix spike and Matrix spike duplicate recovery not evaluated against control limits due to sample dilution.B - Target analyte detected in method blank at or above the reporting limit. Target analyte concentration in sample is less than 10X the concentration in the method blank. Analyte concentration in sample could be due to b M2 - Matrix spike recovery was Low: the associated Laboratory Control Spike (LCS) was acceptable.Temp - Temperature M1 - Matrix spike recovery was High: the associated Laboratory Control Spike (LCS) was acceptable.R0 - The data are unusable. The sample results are rejected due to serious deficiencies in meeting QC criteria. The analyte may or may not be present in the sample. umhos/cm - Micro mhos per centimeter N2 - The lab does not hold accreditation for this parameter. ug/L - Micrograms per liter D6 - The relative percent difference (RPD) between the sample and sample duplicate exceeded laboratory control limits. mg/L - Milligrams per liter M4 - The spike recovery value was unusable since the analyte concentration in the sample was disproportionate to the spike level. The associated Laboratory Control Spike recovery was acceptable. ug/mL - Micrograms per milliliter mV - Millivolts TABLE 2-2 CAMA BASELINE AND POST STARTUP GROUNDWATER ANALYTICAL RESULTS BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS LLC, BELEWS CREEK, NC P:\Duke Energy Carolinas\20. BELEWS CREEK\14.CCP Accelerated Remediation GW Extraction System\IAP Effectiveness Monitoring Report\Tables\Table 2-2 Baseline and Post Startup GW Analytical Results Page 7 of 10 mg/L mg/L ug/L mg/L mg/L mg/L ug/L mg/L mg/L ug/L mg/L mg/L ug/L ug/L ug/L ug/L ug/L ug/L mg/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L mg/L NE NE NE NE NE NE 700 NE 250 NE 250 500 NE 1*10 700 4*2 NE 10 10 1*1000 300 15 NE NE 22.9 22.3 2.65 NE NE NE NE 3.69 15 56.5 1.93 85 860 1 1 58 0.362 1 NE 1.75 4.72 0.509 2.7 750 1 NE 3.41 63.7 62.9 2.64 NE NE NE NE 13.2 20.9 68.5 6.35 148 140 1 1 12.6 0.219 1 NE 0.411 3.3 1.6 5 240 1 NE 6.94 81.3 77.6 10 0.1 10.2 NE 50 10.3 3 100 9.6 133 100 0.5 0.51 6.2 0.2 0.08 NE 0.33 5.3 0.76 9.7 228 0.11 NE 3.35 Chromium (III)MagnesiumLithiumLeadIronBoron SELECTED 40CFR257 APPENDIX III CONSTITUENTS plus Sr Calcium Chloride WATER QUALITY PARAMETERS Antimony CopperCobaltChromiumChromium (VI)CadmiumAluminumBariumArsenicBeryllium Total Suspended Solids Total Organic Carbon Sample ID Sample Collection Date INORGANIC PARAMETERS (TOTAL CONCENTRATION) Bicarbonate AlkalinityAlkalinity Total Dissolved Solids SulfateStrontiumSulfideMethane GWA-20D 10/10/2017 5 5 NA <0.1 <1 <2.5 9480 158 454 978 59.1 1060 67 j <0.5 3.9 51 1.6 1.8 NA 0.054 1 2.4 <0.5 47.1 j,R0 0.17 NA 62.7 GWA-20D 01/16/2018 5.2 5.2 NA <0.1 <1 <2.5 9940 153 461 963 62.7 870 <100 <0.5 4.1 53.5 1.6 1.8 NA 0.055 2.2 2.7 0.79 117 0.16 68.7 62.8 GWA-20D 04/16/2018 5.6 5.6 NA <0.1 0.99 j <2.5 9060 138 M1 402 827 63.8 922 63.8 j 0.45 j 4.7 37 1.4 2.1 NA <0.025 0.97 2.1 1.2 32 j 0.2 69.4 60.9 GWA-20SA 06/08/2016 8.6 8.6 <10 <0.1 0.72 j 9.1 10800 167 483 618 68.6 1030 252 0.14 j 1.4 398 4.1 1.6 NA 0.16 3.6 28.2 1.5 365 0.33 NA 70.5 GWA-20SA 09/21/2016 4.1 j 4.1 j <10 <0.1 0.55 j <2.5 11600 182 483 592 72.4 1520 65.6 j <0.5 0.97 317 5.7 1.8 NA 0.035 1.1 21.7 1.1 129 0.21 NA 60.6 GWA-20SA 11/16/2016 3 j 3 j <10 N2,L3 <0.1 <1 6.8 D6 10700 180 487 630 77.6 882 293 <0.5 4 326 6 1.6 NA 0.4 2.2 20.4 0.66 803 0.7 NA 61.5 GWA-20SA 01/25/2017 2.5 j 2.5 j <10 N2 <0.1 0.61 j <2.5 11400 166 499 578 80.4 1070 79.2 j <0.5 1.1 269 6.2 1.5 NA 0.11 j,D3 0.2 j 22.7 0.4 j,B 110 0.21 NA 61.6 GWA-20SA 04/04/2017 3.7 j 3.7 j <10 <0.1 3.2 3.9 11200 196 489 569 80.3 1160 176 <0.5 4.3 282 5.5 1.4 NA 64 j,D3 1.8 20 0.68 435 0.5 NA 56.1 GWA-20SA 07/19/2017 4 j 4 j NA <0.1 0.55 j <2.5 9950 183 435 M6 522 81.3 M6 874 81.3 j <0.5 2.6 235 5 1.4 NA 0.055 0.94 16.9 0.49 j 77.5 0.25 NA 56 GWA-20SA 10/10/2017 2.8 j 2.8 j NA <0.1 M1,R1 0.77 j <2.5 10600 181 M1 449 554 82 1080 107 <0.5 1.3 221 6.4 1.3 NA 0.05 0.22 j 16.3 <0.5 77 R0 0.2 NA 55.6 M1 GWA-20SA 01/16/2018 2.4 j 2.4 j NA <0.1 <1 <5 11900 169 459 553 89 850 103 <0.5 3.1 225 5.8 1.2 NA 0.046 0.8 17.9 0.39 j 281 0.24 20.9 54.6 GWA-20SA 04/16/2018 3 j 3 j NA <0.1 <1 <2.5 10500 154 398 479 79 998 127 <0.5 5.2 196 4.4 1.6 NA 0.045 M1,R1 1.2 14.5 0.76 205 0.78 22.7 53.3 GWA-21D 03/30/2016 7.5 7.5 1.8 j <0.1 <1 <2.5 44.2 j 24.7 138 304 2.3 226 59.8 j <0.5 0.47 114 2.6 0.58 NA 0.078 0.73 2.3 0.93 44 j <0.1 NA 21.4 GWA-21D 05/10/2016 5.8 5.8 <10 <0.1 <1 <2.5 51 27.4 149 364 1.8 329 <100 <0.5 0.29 142 3 0.53 NA 0.07 j 0.42 j 1.3 0.68 <50 <0.1 NA 23.2 GWA-21D 09/21/2016 4.8 j 4.8 j <10 <0.1 <1 <2.5 125 34.5 190 483 1.2 545 <100 <0.5 0.25 215 5.2 0.77 NA 0.08 4.9 1.5 1.3 28.7 j 0.09 j NA 29.2 GWA-21D 11/18/2016 19 19 <10 N2 <0.1 <1 <2.5 177 37.9 217 520 1.2 491 <100 <0.5 0.25 211 5.1 0.93 NA 0.03 0.64 1.4 0.5 <50 <0.1 NA 30.2 GWA-21D 01/27/2017 4.3 j 4.3 j <10 N2 <0.1 <1 <2.5 197 39.4 219 531 0.94 j 438 251 <0.5 0.25 202 5.3 0.79 NA 0.051 0.68 1.4 0.25 j 31.9 j <0.1 NA 31.6 GWA-21D 04/05/2017 5.5 5.5 <10 <0.1 3.4 <2.5 264 43.2 217 570 0.72 j 452 <100 <0.5 0.22 236 5.9 0.87 NA 0.075 M1 1.8 B 1.5 0.34 j <50 <0.1 NA 34.7 GWA-21D 07/20/2017 5 j 5 j NA <0.1 <1 <2.5 224 38.8 217 554 0.64 j 466 <100 <0.5 0.23 209 5.2 0.79 NA 0.091 M1 1.8 1 0.52 <50 <0.1 NA 31.3 GWA-21D 10/10/2017 3.6 j 3.6 j NA <0.1 <1 <2.5 351 45.5 225 637 <1 480 59.3 j <0.5 0.31 B 248 5.7 0.91 NA 0.038 4.2 1.5 2.6 85.2 <0.1 NA 34.6 GWA-21D 01/16/2018 4 j 4 j NA <0.1 <1 <2.5 551 52 237 686 <1 472 <100 <0.5 0.2 229 5 0.97 NA 0.041 1.1 0.94 0.62 35.7 j 0.038 j 17.9 37.4 GWA-21D 04/19/2018 3.9 j 3.9 j NA <0.1 0.66 j <2.5 478 48.3 241 652 <1 448 <100 <0.5 0.24 193 4.1 0.98 NA 0.063 1 B 0.72 0.76 B <50 0.046 j,B 16.9 36.8 GWA-27D 06/16/2016 20.2 20.2 <10 <0.1 <1 4.7 5420 116 393 918 10.3 990 158 <5 1.1 56.6 1.6 1.6 NA 0.013 j <5 15.4 <5 214 <1 NA 60.8 GWA-27D 07/20/2017 5.3 5.3 NA <0.1 0.54 j 2.6 7280 127 466 882 13.5 1070 164 <0.5 2.2 97.2 3 1.7 NA 0.45 1.5 9.7 1.1 25 j 0.15 NA 61.8 GWA-27D 10/10/2017 3.5 j 3.5 j NA <0.1 <1 <2.5 7140 129 447 909 17.8 815 171 <0.5 2.3 86.1 3 1.9 NA 0.11 0.97 B 9.2 0.81 <50 0.14 NA 64.7 GWA-27D 01/16/2018 3.8 j 3.8 j NA <0.1 <1 <2.5 7860 138 458 915 20.7 415 202 <0.5 2.7 91.9 3.4 1.9 NA 0.069 1.5 9.2 0.86 87.8 0.15 65 64 GWA-27D 04/18/2018 3.2 j 3.2 j NA <0.1 0.71 j <5 7420 122 M1 402 876 19 814 164 <0.5 3 84.6 2.7 1.9 NA 0.071 0.45 j 8 0.57 <50 0.14 56.7 63.5 Prepared by: ALA Checked by: CDE Notes: - Bold highlighted concentration indicates exceedance of the 15A NCAC 02L .0202 Standard or the IMAC. (Effective date for 15A NCAC 02L .0202 Standard and IMAC is April 1, 2013)NTU - Nephelometric turbidity unit * - Interim Maximum Allowable Concentrations (IMACs) of the 15A NCAC 02L Standard, Appendix 1, April, 1, 2013.NA - Not analyzed < - concentration not detected at or above the adjusted reporting limit.NE - Not established 1g - Result confirmed by second analysis performed out of hold.NM - Not measured E - Analyte concentration exceeded the calibration range. The reported result is estimated.pCi/L - picocuries per liter L3 - Analyte recovery in the laboratory control sample (LCS) exceeded quality control (QC) limits. Analyte presence below reporting limits in associated samples. Results unaffected by high bias.R1 - Relative Percent Difference (RPD) value was outside control limits. U – Analyte was analyzed for, but not detected above the MDC.P4 - Sample field preservation does not meet EPA or method recommendations for this analysis. S1 – Data review findings indicate result may be unreliable. Use with caution.D3 - Sample was diluted due to the presence of high levels of non-target analytes or other matrix interference. Deg C - Degrees Celsius Spec Cond - Specific Conductance j - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit.S.U. - Standard Unit M6 - Matrix spike and Matrix spike duplicate recovery not evaluated against control limits due to sample dilution.B - Target analyte detected in method blank at or above the reporting limit. Target analyte concentration in sample is less than 10X the concentration in the method blank. Analyte concentration in sample could be due to blank M2 - Matrix spike recovery was Low: the associated Laboratory Control Spike (LCS) was acceptable.Temp - Temperature M1 - Matrix spike recovery was High: the associated Laboratory Control Spike (LCS) was acceptable.R0 - The data are unusable. The sample results are rejected due to serious deficiencies in meeting QC criteria. The analyte may or may not be present in the sample. umhos/cm - Micro mhos per centimeter N2 - The lab does not hold accreditation for this parameter. ug/L - Micrograms per liter D6 - The relative percent difference (RPD) between the sample and sample duplicate exceeded laboratory control limits. mg/L - Milligrams per liter M4 - The spike recovery value was unusable since the analyte concentration in the sample was disproportionate to the spike level. The associated Laboratory Control Spike recovery was acceptable. ug/mL - Micrograms per milliliter mV - Millivolts TABLE 2-2 CAMA BASELINE AND POST STARTUP GROUNDWATER ANALYTICAL RESULTS BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS LLC, BELEWS CREEK, NC P:\Duke Energy Carolinas\20. BELEWS CREEK\14.CCP Accelerated Remediation GW Extraction System\IAP Effectiveness Monitoring Report\Tables\Table 2-2 Baseline and Post Startup GW Analytical Results Page 8 of 10 ug/L ug/L ug/L ug/L mg-N/L mg-N/L mg/L ug/L ug/L mg/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L mg/L ug/L ug/L ug/L mg/L ug/L ug/L ug/L 50 1 NE 100 10 NE NE 20 20 NE 0.2*0.3*1000 NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE 22.9 NE 1 4.26 NE 3.63 5 NE NE 5.92 0.2 1.33 10 NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE 13 NE 1.3 4.67 NE 4.19 5 NE NE 10.7 0.2 1.45 43.2 NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE 9.9 0.2 3.7 3.2 NE 0.17 5.15 0.5 NE 12 0.1 0.82 16 NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Calcium Chromium Cobalt Copper Fluoride Iron Lead Lithium (0.45u)(0.45u)(0.45u)(0.45u)(0.45u)(0.45u)(0.45u)(0.45u)(0.45u)(0.45u)(0.45u)(0.45u)(0.45u)(0.45u)(0.45u) INORGANIC PARAMETERS (TOTAL CONCENTRATION) CONTINUED INORGANIC PARAMETERS (DISSOLVED CONCENTRATION WITH FILTER SIZE) Nitrate (as N)NickelMolybdenumMercuryManganese ZincVanadiumThalliumSodiumSilverSeleniumPotassiumNitrate + NitriteSample ID Sample Collection Date GWA-20D 10/10/2017 2310 <0.2 0.32 j 28.6 NA 0.03 8.91 1 NA 23.6 0.16 0.24 j 27.7 53.7 j <0.5 3.5 63 1.3 8420 1.7 NA 0.63 B 2.7 <0.5 NA 30.7 j 0.13 NA GWA-20D 01/16/2018 2240 0.29 0.4 j 35 NA 0.025 9.16 0.42 j NA 23.5 0.18 0.14 j 25.4 <100 <0.5 3.6 68.9 1.3 9220 1.6 NA 0.33 j 2.7 1.3 NA 38.1 j 0.15 NA GWA-20D 04/16/2018 1900 0.2 0.6 26.8 NA 0.021 9.68 0.23 j NA 24.3 0.17 0.16 j 26.8 60.8 j 0.28 j 4.3 59.5 1.1 8920 1.8 NA 0.25 j 2.3 1.4 NA <55.6 0.16 NA GWA-20SA 06/08/2016 7420 0.091 j 0.28 j 11.5 NA 0.1 10.9 1.7 NA 17.2 0.48 0.14 j 19 61.8 j 0.11 j 0.51 378 5.1 9980 1.5 NA 2.3 26.1 4.2 NA 90.1 0.17 NA GWA-20SA 09/21/2016 6110 0.1 j <0.5 12.1 NA 0.096 6.71 2.9 NA 14.4 0.41 <0.3 14 57 j <0.5 0.67 326 4.8 11400 1.6 NA 1.2 19.6 9.1 NA 89 0.2 NA GWA-20SA 11/16/2016 6240 0.26 0.25 j 9.3 NA 0.036 6.6 2.3 NA 14.7 0.48 0.22 j 15.7 80.8 j <0.5 0.57 316 6 11100 1.6 NA 0.3 j 19.4 3.6 NA 68.1 0.22 NA GWA-20SA 01/25/2017 6160 0.087 j,B <0.5 10.2 NA 0.037 6.1 2.1 NA 15.1 0.4 0.076 j,B 15 82.4 j <0.5 0.83 308 5.9 11300 1.4 NA <0.5 21.3 0.67 NA 81.1 0.17 NA GWA-20SA 04/04/2017 5640 0.12 j 0.24 j 10.8 NA 0.049 B 5.7 1.7 NA 13.7 0.4 <0.3 13.2 <100 <0.5 0.98 270 5.7 11300 1.3 NA 0.33 j,B 20.1 4.3 NA 88.5 0.22 NA GWA-20SA 07/19/2017 5450 0.1 j 0.14 j 9.1 NA 0.054 5.93 1.8 NA 14.2 0.32 0.081 j 13.8 72.7 j <0.5 1.1 226 5.5 9640 M6 1.3 NA 0.18 j 18.7 0.94 NA 79.2 0.16 NA GWA-20SA 10/10/2017 5440 <0.2 <0.5 8.6 NA 0.037 5.74 2.6 NA 13.8 0.36 0.16 j 13.4 52.2 j <0.5 1.1 223 6.1 9910 M6 1.3 NA 0.4 j,B 16.8 <0.5 NA 47.4 j 0.18 NA GWA-20SA 01/16/2018 5500 <0.2 0.11 j 8.1 NA 0.024 5.63 0.91 NA 13.4 0.37 <0.3 12.8 67.7 j <0.5 1.3 221 6.2 11200 1.2 NA 0.56 18.2 0.84 NA 60.5 0.21 NA GWA-20SA 04/16/2018 5080 <0.2 0.64 8.6 NA 0.024 6.01 0.25 j NA 13.9 0.41 0.31 9 j 70.9 j <0.5 2.4 217 5.2 10100 1.4 NA 0.29 j 15.6 0.63 NA 68.6 0.22 NA GWA-21D 03/30/2016 83.5 <0.2 0.14 j 6.5 NA 0.46 6.05 <0.5 NA 25 0.17 0.12 j 7.7 j <100 <0.5 0.45 <5 2.4 <50 0.55 NA 0.19 j 2.1 3.2 NA <50 <0.1 NA GWA-21D 05/10/2016 54.1 <0.2 0.17 j 6.1 NA 0.45 6.43 <0.5 NA 24.9 0.21 0.086 j 9.2 j <100 <0.5 0.33 125 3.5 50.9 0.55 NA 0.22 j 1.4 3.5 NA <50 <0.1 NA GWA-21D 09/21/2016 55.5 <0.2 <0.5 11 NA 0.43 6.76 <0.5 NA 27.6 0.25 <0.3 18.5 <100 <0.5 0.22 204 4.3 136 0.7 NA 0.84 1.2 5.8 NA <50 <0.1 NA GWA-21D 11/18/2016 52.5 0.077 j <0.5 9.5 NA 0.36 6.8 <0.5 NA 28.2 0.26 0.082 j 11.7 <100 <0.5 0.2 205 4.9 179 0.72 NA 0.44 j 1.3 1.9 NA <50 <0.1 NA GWA-21D 01/27/2017 49.4 0.16 j,B <0.5 14.6 NA 0.36 7.1 <0.5 NA 28.1 0.19 0.12 j 12.7 B <100 <0.5 0.2 224 5.3 216 0.83 NA 0.13 j,B 1.3 0.96 NA <50 <0.1 NA GWA-21D 04/05/2017 53 <0.2 <0.5 9.6 NA 0.35 7.3 0.4 j NA 29.2 0.29 <0.3 14.5 <100 <0.5 0.21 252 5.2 279 0.88 NA 0.32 j 1.6 3.2 NA <50 1.00E-01 NA GWA-21D 07/20/2017 47.8 0.12 j <0.5 12.6 NA 0.36 7.03 <0.5 NA 27.8 0.26 <0.3 19.1 <100 <0.5 0.2 202 5.1 203 0.77 NA 0.39 j 0.93 3.2 NA <50 <0.1 NA GWA-21D 10/10/2017 55.5 0.07 j <0.5 12.8 NA 0.34 7.72 <0.5 NA 30.3 0.31 0.27 j,B 22.6 51.8 j <0.5 0.2 228 5.5 327 1 NA 0.72 1.3 0.53 NA <50 <0.1 NA GWA-21D 01/16/2018 47 0.12 j <0.5 12.3 NA 0.28 7.87 <0.5 NA 30.1 0.31 <0.3 11 <100 <0.5 0.23 B 217 4.9 556 1 NA 0.72 0.87 1.1 NA <50 0.039 j NA GWA-21D 04/19/2018 39.8 0.098 j <0.5 12.1 NA 0.31 7.61 <0.5 NA 28.5 0.26 0.099 j,B 9.5 j <100 <0.5 0.27 187 4.2 480 1 NA 0.25 j 0.67 8.3 NA <50 0.037 j NA GWA-27D 06/16/2016 2080 0.12 j 1.2 j 21.4 NA 0.055 7.45 <5 NA 28.9 0.46 j <3 71.9 56 j <5 0.95 j 50.9 1.8 4840 1.4 NA <5 12 2.9 j NA 79.4 <1 NA GWA-27D 07/20/2017 2740 0.21 0.35 j 18.3 NA 0.095 7.7 1 NA 26.9 0.31 0.1 j 35.5 B 132 <0.5 1.8 84.2 2.9 6600 1.8 NA 0.6 9.4 5.4 NA <50 0.11 NA GWA-27D 10/10/2017 2760 0.19 j 0.25 j 20 NA 0.1 7.95 0.97 NA 27.6 0.34 0.18 j,B 32.5 B 158 <0.5 2.1 92.7 2.9 7350 2 NA 0.21 j 9.4 0.19 j NA <50 0.17 NA GWA-27D 01/16/2018 2800 0.18 j 0.29 j 18.5 NA 0.084 8.05 0.57 NA 25.6 0.36 0.1 j 33 152 <0.5 2.1 98.9 3.3 7730 1.9 NA 0.27 j 9.3 3.1 NA <50 0.16 NA GWA-27D 04/18/2018 2710 0.16 j 0.53 19.5 NA 0.087 7.35 0.3 j NA 24.1 0.31 <0.3 35.1 122 <0.5 2.5 77.4 3.4 6890 1.9 NA 0.27 j 9 3.8 NA <50 0.14 NA Prepared by: ALA Checked by: CDE Notes: - Bold highlighted concentration indicates exceedance of the 15A NCAC 02L .0202 Standard or the IMAC. (Effective date for 15A NCAC 02L .0202 Standard and IMAC is April 1, 2013)NTU - Nephelometric turbidity unit * - Interim Maximum Allowable Concentrations (IMACs) of the 15A NCAC 02L Standard, Appendix 1, April, 1, 2013.NA - Not analyzed < - concentration not detected at or above the adjusted reporting limit.NE - Not established 1g - Result confirmed by second analysis performed out of hold.NM - Not measured E - Analyte concentration exceeded the calibration range. The reported result is estimated.pCi/L - picocuries per liter L3 - Analyte recovery in the laboratory control sample (LCS) exceeded quality control (QC) limits. Analyte presence below reporting limits in associated samples. Results unaffected by high bias.R1 - Relative Percent Difference (RPD) value was outside control limits. U – Analyte was analyzed for, but not detected above the MDC.P4 - Sample field preservation does not meet EPA or method recommendations for this analysis. S1 – Data review findings indicate result may be unreliable. Use with caution.D3 - Sample was diluted due to the presence of high levels of non-target analytes or other matrix interference. Deg C - Degrees Celsius Spec Cond - Specific Conductance j - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit.S.U. - Standard Unit M6 - Matrix spike and Matrix spike duplicate recovery not evaluated against control limits due to sample dilution.B - Target analyte detected in method blank at or above the reporting limit. Target analyte concentration in sample is less than 10X the concentration in the method blank. Analyte concentration in sample could be due to blan M2 - Matrix spike recovery was Low: the associated Laboratory Control Spike (LCS) was acceptable.Temp - Temperature M1 - Matrix spike recovery was High: the associated Laboratory Control Spike (LCS) was acceptable.R0 - The data are unusable. The sample results are rejected due to serious deficiencies in meeting QC criteria. The analyte may or may not be present in the sample. umhos/cm - Micro mhos per centimeter N2 - The lab does not hold accreditation for this parameter. ug/L - Micrograms per liter D6 - The relative percent difference (RPD) between the sample and sample duplicate exceeded laboratory control limits. mg/L - Milligrams per liter M4 - The spike recovery value was unusable since the analyte concentration in the sample was disproportionate to the spike level. The associated Laboratory Control Spike recovery was acceptable. ug/mL - Micrograms per milliliter mV - Millivolts TABLE 2-2 CAMA BASELINE AND POST STARTUP GROUNDWATER ANALYTICAL RESULTS BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS LLC, BELEWS CREEK, NC P:\Duke Energy Carolinas\20. BELEWS CREEK\14.CCP Accelerated Remediation GW Extraction System\IAP Effectiveness Monitoring Report\Tables\Table 2-2 Baseline and Post Startup GW Analytical Results Page 9 of 10 mg/L ug/L ug/L ug/L ug/L mg/L mg/L ug/L ug/L mg/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE Magnesium Manganese Mercury Molybdenum Nickel Phosphorus Potassium Selenium Silver Sodium Strontium Thallium Vanadium Zinc Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Chromium Cobalt Copper Iron Lead Manganese Mercury Molybdenum (0.45u)(0.45u)(0.45u)(0.45u)(0.45u)(0.45u)(0.45u)(0.45u)(0.45u)(0.45u)(0.45u)(0.45u)(0.45u)(0.45u)(0.1u)(0.1u)(0.1u)(0.1u)(0.1u)(0.1u)(0.1u)(0.1u)(0.1u)(0.1u)(0.1u)(0.1u)(0.1u)(0.1u)(0.1u) Sample ID Sample Collection Date INORGANIC PARAMETERS (DISSOLVED CONCENTRATION WITH FILTER SIZE) CONTINUED GWA-20D 10/10/2017 NA 1970 <0.2 0.29 j 29.2 NA NA <0.5 1g NA NA 942 0.2 <0.3 21.6 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA GWA-20D 01/16/2018 NA 1970 <0.2 0.32 j 30.4 <0.05 NA 0.25 j NA NA 946 0.26 0.066 j 19.5 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA GWA-20D 04/16/2018 NA 1790 <0.2 0.52 23.1 <0.05 NA <0.5 NA NA 880 0.23 0.1 j 19.6 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA GWA-20SA 06/08/2016 NA 6940 <0.2 0.21 j 10.5 NA NA 1.7 NA NA 594 0.49 <0.3 19.3 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA GWA-20SA 09/21/2016 NA 6450 <0.2 <0.5 10.8 NA NA 2.7 NA NA 624 0.38 <0.3 18.7 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA GWA-20SA 11/16/2016 NA 5880 <0.2 <0.5 8.8 NA NA 2.2 NA NA 587 0.48 0.11 j,B 14.7 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA GWA-20SA 01/25/2017 NA 5850 0.09 j <0.5 9.2 NA NA 2.1 NA NA 622 0.34 <0.3 13.8 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA GWA-20SA 04/04/2017 NA 6160 <0.2 <0.5 9.7 NA NA 1.7 NA NA 573 0.41 <0.3 16.3 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA GWA-20SA 07/19/2017 NA 5140 <0.2 <0.5 8.2 NA NA 1.7 NA NA 502 0.39 <0.3 15 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA GWA-20SA 10/10/2017 NA 5260 <0.2 <0.5 7.8 NA NA 2.1 1g NA NA 546 0.38 <0.3 11.7 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA GWA-20SA 01/16/2018 NA 5430 <0.2 0.086 j 8.1 <0.05 NA 0.42 j NA NA 524 0.46 <0.3 12.2 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA GWA-20SA 04/16/2018 NA 5250 <0.2 0.5 6.8 <0.05 NA <0.5 NA NA 498 0.52 0.07 j 9.9 j NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA GWA-21D 03/30/2016 NA <5 <0.2 <0.5 6.5 NA NA <0.5 NA NA <5 0.15 0.073 j <10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA GWA-21D 05/10/2016 NA 52.3 <0.2 <0.5 7.2 NA NA <0.5 NA NA 318 0.22 0.09 j 9.5 j NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA GWA-21D 09/21/2016 NA 52.2 <0.2 <0.5 8.2 NA NA <0.5 NA NA 499 0.22 <0.3 16.5 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA GWA-21D 11/18/2016 NA 49 <0.2 <0.5 9 NA NA <0.5 NA NA 499 0.23 <0.3 11.8 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA GWA-21D 01/27/2017 NA 51.5 <0.2 <0.5 19.7 NA NA 0.44 j NA NA 555 0.28 0.079 j,B 11.4 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA GWA-21D 04/05/2017 NA 54.2 <0.2 <0.5 10.1 NA NA 0.54 NA NA 572 0.32 <0.3 13.7 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA GWA-21D 07/20/2017 NA 43.6 0.1 j <0.5 11.1 NA NA <0.5 NA NA 513 0.27 <0.3 48.8 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA GWA-21D 10/10/2017 NA 50 0.091 j <0.5 12.6 NA NA <0.5 NA NA 614 0.28 <0.3 13 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA GWA-21D 01/16/2018 NA 45.8 0.097 j <0.5 11.4 <0.05 NA <0.5 NA NA 683 0.31 <0.3 11.8 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA GWA-21D 04/19/2018 NA 39.7 <0.2 <0.5 10.8 <0.05 NA <0.5 NA NA 640 0.26 <0.3 12.8 B NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA GWA-27D 06/16/2016 NA 1860 <0.2 <5 17.6 NA NA <5 NA NA 841 0.42 j <3 54.2 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA GWA-27D 07/20/2017 NA 2560 0.12 j 0.25 j 18 NA NA 0.91 NA NA 832 0.31 <0.3 32.9 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA GWA-27D 10/10/2017 NA 2870 <0.2 0.27 j 19.6 NA NA 1.9 NA NA 930 0.38 <0.3 30.5 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA GWA-27D 01/16/2018 NA 2860 <0.2 0.19 j 18.3 <0.05 NA 0.44 j NA NA 905 0.4 <0.3 31.2 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA GWA-27D 04/18/2018 NA 2470 <0.2 0.23 j 19.9 <0.05 NA 1 NA NA 763 0.39 <0.3 29.1 B NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Prepared by: ALA Checked by: CDE Notes: - Bold highlighted concentration indicates exceedance of the 15A NCAC 02L .0202 Standard or the IMAC. (Effective date for 15A NCAC 02L .0202 Standard and IMAC is April 1, 2013)NTU - Nephelometric turbidity unit * - Interim Maximum Allowable Concentrations (IMACs) of the 15A NCAC 02L Standard, Appendix 1, April, 1, 2013.NA - Not analyzed < - concentration not detected at or above the adjusted reporting limit.NE - Not established 1g - Result confirmed by second analysis performed out of hold.NM - Not measured E - Analyte concentration exceeded the calibration range. The reported result is estimated.pCi/L - picocuries per liter L3 - Analyte recovery in the laboratory control sample (LCS) exceeded quality control (QC) limits. Analyte presence below reporting limits in associated samples. Results unaffected by high bias.R1 - Relative Percent Difference (RPD) value was outside control limits. U – Analyte was analyzed for, but not detected above the MDC.P4 - Sample field preservation does not meet EPA or method recommendations for this analysis. S1 – Data review findings indicate result may be unreliable. Use with caution.D3 - Sample was diluted due to the presence of high levels of non-target analytes or other matrix interference. Deg C - Degrees Celsius Spec Cond - Specific Conductance j - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit.S.U. - Standard Unit M6 - Matrix spike and Matrix spike duplicate recovery not evaluated against control limits due to sample dilution.B - Target analyte detected in method blank at or above the reporting limit. Target analyte concentration in sample is less than 10X the concentration in the method blank. Analyte concentration in sample could be due to blan M2 - Matrix spike recovery was Low: the associated Laboratory Control Spike (LCS) was acceptable.Temp - Temperature M1 - Matrix spike recovery was High: the associated Laboratory Control Spike (LCS) was acceptable.R0 - The data are unusable. The sample results are rejected due to serious deficiencies in meeting QC criteria. The analyte may or may not be present in the sample. umhos/cm - Micro mhos per centimeter N2 - The lab does not hold accreditation for this parameter. ug/L - Micrograms per liter D6 - The relative percent difference (RPD) between the sample and sample duplicate exceeded laboratory control limits. mg/L - Milligrams per liter M4 - The spike recovery value was unusable since the analyte concentration in the sample was disproportionate to the spike level. The associated Laboratory Control Spike recovery was acceptable. ug/mL - Micrograms per milliliter mV - Millivolts TABLE 2-2 CAMA BASELINE AND POST STARTUP GROUNDWATER ANALYTICAL RESULTS BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS LLC, BELEWS CREEK, NC P:\Duke Energy Carolinas\20. BELEWS CREEK\14.CCP Accelerated Remediation GW Extraction System\IAP Effectiveness Monitoring Report\Tables\Table 2-2 Baseline and Post Startup GW Analytical Results Page 10 of 10 ug/L ug/L ug/L ug/L ug/L ug/L pCi/L pCi/L pCi/L ug/mL ug/mL ug/mL ug/mL ug/mL ug/mL ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L mg/L ug/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L NE NE NE NE NE NE NE NE 5^NE NE NE NE NE 0.03^NE NE 10 NE NE NE NE NE NE NE NE NE NE 2 NE NE NE NE NE NE NE NE NE NE NE NE NE 8.74 NE NE NE NE NE 0.0005 NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE 1.1 NE NE NE NE NE 0.0005 NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE 0.466 NE NE NE NE NE 0.00054 NE NE NE NE NE NE NE NE NE NE NE 5 NE NE NE NE NE NE NE Nickel Selenium Strontium Thallium Vanadium Zinc Uranium 238 (0.1u)(0.1u)(0.1u)(0.1u)(0.1u)(0.1u)DIS As(V)As(III) RADIONUCLIDES BromideBOD SPECIATIONS Se(VI)Se(IV)Mn(IV)Mn(II)Fe(III)Uranium 238 Uranium 236 Uranium 234 Uranium 233 Total Radium OTHER PARAMETERS Total Organic Halides SilicaPhosphorusNitrateFluorideCODSample ID Sample Collection Date Carbonate AlkalinityFe(II)Total Uranium HardnessCr(VI)Radium 228 Radium 226 INORGANIC PARAMETERS (DISSOLVED CONCENTRATION WITH FILTER SIZE) CONTINUED GWA-20D 10/10/2017 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5 NA NA NA NA NA NA NA GWA-20D 01/16/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5 NA <0.1 NA NA <0.05 NA NA GWA-20D 04/16/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5 NA <0.1 NA NA <0.05 NA NA GWA-20SA 06/08/2016 NA NA NA NA NA NA 2.26 3.87 6.13 NA NA NA NA 0.00063 0.00063 NA NA NA NA NA NA NA NA NA NA NA <5 NA NA NA NA NA NA NA GWA-20SA 09/21/2016 NA NA NA NA NA NA 2.54 2.04 4.58 NA NA NA NA 0.00051 0.00051 NA NA NA NA NA NA NA NA NA NA NA <5 NA NA NA NA NA NA NA GWA-20SA 11/16/2016 NA NA NA NA NA NA 3.47 2.61 6.08 NA NA NA NA 6.60E-04 6.60E-04 NA NA NA NA NA NA NA NA NA NA NA <5 NA NA NA NA NA NA NA GWA-20SA 01/25/2017 NA NA NA NA NA NA 3.05 0.811 3.861 NA NA NA NA 0.00048 j 0.00048 j NA NA NA NA NA NA NA NA NA NA NA <5 NA NA NA NA NA NA NA GWA-20SA 04/04/2017 NA NA NA NA NA NA 3.42 1.96 5.38 NA NA NA NA 0.0006 0.0006 NA NA NA NA NA NA NA NA NA NA NA <5 NA NA NA NA NA NA NA GWA-20SA 07/19/2017 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5 NA NA NA NA NA NA NA GWA-20SA 10/10/2017 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5 NA NA NA NA NA NA NA GWA-20SA 01/16/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5 NA <0.1 NA NA <0.05 NA NA GWA-20SA 04/16/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5 NA <0.1 NA NA <0.05 NA NA GWA-21D 03/30/2016 NA NA NA NA NA NA 1.24 0.0779 1.3179 NA NA NA NA <0.0005 <0.0005 NA NA NA NA NA NA NA NA NA NA NA <5 NA NA NA NA NA NA NA GWA-21D 05/10/2016 NA NA NA NA NA NA 0.67 -0.0592 0.6108 NA NA NA NA <0.0005 <0.0005 NA NA NA NA NA NA NA NA NA NA NA <5 NA NA NA NA NA NA NA GWA-21D 09/21/2016 NA NA NA NA NA NA 0.339 1.03 1.369 NA NA NA NA <0.0005 <0.0005 NA NA NA NA NA NA NA NA NA NA NA <5 NA NA NA NA NA NA NA GWA-21D 11/18/2016 NA NA NA NA NA NA 1.27 0.319 1.589 NA NA NA NA <0.0005 <0.0005 NA NA NA NA NA NA NA NA NA NA NA <5 NA NA NA NA NA NA NA GWA-21D 01/27/2017 NA NA NA NA NA NA 1.24 1.14 2.38 NA NA NA NA <0.0005 <0.0005 NA NA NA NA NA NA NA NA NA NA NA <5 NA NA NA NA NA NA NA GWA-21D 04/05/2017 NA NA NA NA NA NA 0.45 0.721 1.171 NA NA NA NA <0.0005 <0.0005 NA NA NA NA NA NA NA NA NA NA NA <5 NA NA NA NA NA NA NA GWA-21D 07/20/2017 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5 NA NA NA NA NA NA NA GWA-21D 10/10/2017 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5 NA NA NA NA NA NA NA GWA-21D 01/16/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5 NA <0.1 NA NA <0.05 NA NA GWA-21D 04/19/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5 NA <0.1 NA NA <0.05 NA NA GWA-27D 06/16/2016 NA NA NA NA NA NA 3.65 1.95 5.6 NA NA NA NA <0.005 <0.005 NA NA NA NA NA NA NA NA NA NA NA <5 NA NA NA NA NA NA NA GWA-27D 07/20/2017 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5 NA NA NA NA NA NA NA GWA-27D 10/10/2017 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5 NA NA NA NA NA NA NA GWA-27D 01/16/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5 NA <0.1 NA NA <0.05 NA NA GWA-27D 04/18/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5 NA 0.11 NA NA <0.05 NA NA Prepared by: ALA Checked by: CDE Notes: - Bold highlighted concentration indicates exceedance of the 15A NCAC 02L .0202 Standard or the IMAC. (Effective date for 15A NCAC 02L .0202 Standard and IMAC is April 1, 2013)NTU - Nephelometric turbidity unit * - Interim Maximum Allowable Concentrations (IMACs) of the 15A NCAC 02L Standard, Appendix 1, April, 1, 2013.NA - Not analyzed < - concentration not detected at or above the adjusted reporting limit.NE - Not established 1g - Result confirmed by second analysis performed out of hold.NM - Not measured E - Analyte concentration exceeded the calibration range. The reported result is estimated.pCi/L - picocuries per liter L3 - Analyte recovery in the laboratory control sample (LCS) exceeded quality control (QC) limits. Analyte presence below reporting limits in associated samples. Results unaffected by high bias.R1 - Relative Percent Difference (RPD) value was outside control limits. U – Analyte was analyzed for, but not detected above the MDC.P4 - Sample field preservation does not meet EPA or method recommendations for this analysis. S1 – Data review findings indicate result may be unreliable. Use with caution.D3 - Sample was diluted due to the presence of high levels of non-target analytes or other matrix interference. Deg C - Degrees Celsius Spec Cond - Specific Conductance j - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit.S.U. - Standard Unit M6 - Matrix spike and Matrix spike duplicate recovery not evaluated against control limits due to sample dilution.B - Target analyte detected in method blank at or above the reporting limit. Target analyte concentration in sample is less than 10X the concentration in the method blank. Analyte concentration in sample could be due to blank M2 - Matrix spike recovery was Low: the associated Laboratory Control Spike (LCS) was acceptable.Temp - Temperature M1 - Matrix spike recovery was High: the associated Laboratory Control Spike (LCS) was acceptable.R0 - The data are unusable. The sample results are rejected due to serious deficiencies in meeting QC criteria. The analyte may or may not be present in the sample. umhos/cm - Micro mhos per centimeter N2 - The lab does not hold accreditation for this parameter. ug/L - Micrograms per liter D6 - The relative percent difference (RPD) between the sample and sample duplicate exceeded laboratory control limits. mg/L - Milligrams per liter M4 - The spike recovery value was unusable since the analyte concentration in the sample was disproportionate to the spike level. The associated Laboratory Control Spike recovery was acceptable. ug/mL - Micrograms per milliliter mV - Millivolts TABLE 2-3 CCR BASELINE GROUNDWATER ANALYTICAL RESULTS BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS LLC, BELEWS CREEK, NC P:\Duke Energy Carolinas\20. BELEWS CREEK\14.CCP Accelerated Remediation GW Extraction System\IAP Effectiveness Monitoring Report\Tables\Table 2-3 CCR Baseline GW Analytical Results Page 1 of 2 Reporting Units S.U.ft Deg C umhos/cm mg/L mV mV NTUs mg/L ug/L ug/L ug/L ug/L Sample ID Location Description Associated Unit Location with Respect to Groundwater Flow Direction Sample Media Well Screen Location Sample Location Aquifer Name Top of Casing Elevation (FEET) Ground Elevation (FEET) Top of Well Screen Elevation (FEET) Bottom of Well Screen Elevation (FEET) Latitude Longitude Sample Collection Date pH Water Level Temp Spec Cond Dissolved Oxygen ORP Eh Turbidity Alkalinity Antimony Arsenic Barium Beryllium CCR-02D Northwest of Ash Basin Ash Basin Downgradient Water Transition Zone Deep 767.40 764.52 702.23 697.23 36.29509832 -80.08078298 06/10/2016 4.8 18.88 18 608 22.70 65 270 2.78 30.8 <0.5 1.3 20 0.68 CCR-02D Northwest of Ash Basin Ash Basin Downgradient Water Transition Zone Deep 767.40 764.52 702.23 697.23 36.29509832 -80.08078298 07/27/2016 5.2 18.47 24 752 3.10 352 557 7.4 9.9 <0.5 1.4 10.8 0.84 CCR-02D Northwest of Ash Basin Ash Basin Downgradient Water Transition Zone Deep 767.40 764.52 702.23 697.23 36.29509832 -80.08078298 09/23/2016 5.3 19.98 26 667 3.50 268 473 1.2 7.9 <5 0.97 j 10.8 0.28 j CCR-02D Northwest of Ash Basin Ash Basin Downgradient Water Transition Zone Deep 767.40 764.52 702.23 697.23 36.29509832 -80.08078298 11/15/2016 5.2 19.03 18 800 2.30 197 402 0.7 8.5 <0.5 1.2 12.3 0.94 CCR-02D Northwest of Ash Basin Ash Basin Downgradient Water Transition Zone Deep 767.40 764.52 702.23 697.23 36.29509832 -80.08078298 01/10/2017 5.3 18.52 8 801 2.20 185 390 0.01 7.4 <0.5 0.79 12.6 0.93 CCR-02D Northwest of Ash Basin Ash Basin Downgradient Water Transition Zone Deep 767.40 764.52 702.23 697.23 36.29509832 -80.08078298 03/09/2017 5.1 18.98 15 839 2.50 102 307 0.7 9.5 <0.5 1.2 10.1 0.91 CCR-02D Northwest of Ash Basin Ash Basin Downgradient Water Transition Zone Deep 767.40 764.52 702.23 697.23 36.29509832 -80.08078298 05/03/2017 4.9 17.76 19 827 2.10 -97 108 0.3 8.5 <0.5 1.4 13.2 1 CCR-02D Northwest of Ash Basin Ash Basin Downgradient Water Transition Zone Deep 767.40 764.52 702.23 697.23 36.29509832 -80.08078298 06/27/2017 5.1 18.37 18 849 1.60 -47 158 0.9 8.6 <0.5 1.5 13.6 1 CCR-02D Northwest of Ash Basin Ash Basin Downgradient Water Transition Zone Deep 767.40 764.52 702.23 697.23 36.29509832 -80.08078298 08/22/2017 5.0 18.85 20 389 2.20 289 494 1.5 8.7 <0.5 1.1 14 0.96 CCR-02S Northwest of Ash Basin Ash Basin Downgradient Water Shallow Shallow 768.66 765.48 750.46 735.46 36.29509530 -80.08081632 06/10/2016 3.7 20.34 17 301 11.80 63 268 1.39 <5 <0.5 2.5 248 1.1 CCR-02S Northwest of Ash Basin Ash Basin Downgradient Water Shallow Shallow 768.66 765.48 750.46 735.46 36.29509530 -80.08081632 07/27/2016 4.5 20.24 19 596 0.34 385 590 1.2 <5 <0.5 5.1 249 2 CCR-02S Northwest of Ash Basin Ash Basin Downgradient Water Shallow Shallow 768.66 765.48 750.46 735.46 36.29509530 -80.08081632 09/23/2016 4.6 21.49 21 717 5.60 395 600 0.7 <5 <5 7.4 724 2.4 CCR-02S Northwest of Ash Basin Ash Basin Downgradient Water Shallow Shallow 768.66 765.48 750.46 735.46 36.29509530 -80.08081632 11/15/2016 4.3 20.67 17 996 0.60 414 619 3.4 <5 <0.5 8 483 2.8 CCR-02S Northwest of Ash Basin Ash Basin Downgradient Water Shallow Shallow 768.66 765.48 750.46 735.46 36.29509530 -80.08081632 01/10/2017 4.3 20.30 7 1105 2.70 416 621 9.8 <5 <0.5 13.2 441 2.9 CCR-02S Northwest of Ash Basin Ash Basin Downgradient Water Shallow Shallow 768.66 765.48 750.46 735.46 36.29509530 -80.08081632 03/09/2017 4.3 20.56 13 1121 0.90 88 293 0.7 <5 <0.5 10.8 431 2.4 CCR-02S Northwest of Ash Basin Ash Basin Downgradient Water Shallow Shallow 768.66 765.48 750.46 735.46 36.29509530 -80.08081632 05/03/2017 4.4 19.28 17 728 2.20 444 649 0.6 <5 <0.5 7.8 266 1.8 CCR-02S Northwest of Ash Basin Ash Basin Downgradient Water Shallow Shallow 768.66 765.48 750.46 735.46 36.29509530 -80.08081632 06/27/2017 4.5 19.84 19 471 0.50 269 474 0.01 <5 <0.5 3.1 213 1.2 CCR-02S Northwest of Ash Basin Ash Basin Downgradient Water Shallow Shallow 768.66 765.48 750.46 735.46 36.29509530 -80.08081632 08/22/2017 4.5 20.44 20 770 0.70 202 407 1.8 <5 <0.5 6 260 1.8 FIELD PARAMETERS FIELD PARAMETERS ANALYTICAL RESULTS (TOTAL CONCENTRATION) ANALYTICAL RESULTS (TOTAL CONCENTRATION) TABLE 2-3 CCR BASELINE GROUNDWATER ANALYTICAL RESULTS BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS LLC, BELEWS CREEK, NC P:\Duke Energy Carolinas\20. BELEWS CREEK\14.CCP Accelerated Remediation GW Extraction System\IAP Effectiveness Monitoring Report\Tables\Table 2-3 CCR Baseline GW Analytical Results Page 2 of 2 ug/L ug/L mg/L mg/L ug/L ug/L mg/L ug/L ug/L mg/L ug/L ug/L mg/L ug/L mg/L mg/L ug/L mg/L pCi/L pCi/L Sample ID Sample Collection Date Boron Cadmium Calcium Chloride Chromium Cobalt Fluoride Lead Lithium Magnesium Mercury Molybdenum Potassium Selenium Sodium Sulfate Thallium Total Dissolved Solids Radium-226 Radium-228 CCR-02D 06/10/2016 2760 0.56 64.6 216 1.1 1.5 <0.1 0.1 82.3 31.7 0.34 <0.5 8.42 <0.5 17 1.3 <0.1 773 0.552 0.605 CCR-02D 07/27/2016 2740 0.59 59.4 217 1.5 1.7 <0.1 0.18 75.5 30.6 0.3 0.27 j 7.29 <0.5 16 1 0.034 j 590 0.499 1.23 CCR-02D 09/23/2016 2870 0.64 j 62.9 219 <5 1.7 <0.1 <1 72 31.6 0.32 <5 6.84 <5 15.5 1.1 <1 546 0.972 0.314 CCR-02D 11/15/2016 3400 0.84 67.9 257 0.38 j 3.3 <0.1 <0.1 78.6 34 0.17 j <0.5 7.4 <0.5 16.2 0.8 j <0.1 519 0.351 0.62 CCR-02D 01/10/2017 3420 0.9 63.3 243 0.18 j 4.9 <0.1 <0.1 74.7 32.3 0.23 <0.5 7.24 0.36 j 15.5 0.88 j 0.032 j 561 0.418 0.472 CCR-02D 03/09/2017 3160 0.83 59.3 247 1.4 B 3.8 <0.1 <0.1 72.1 31 0.24 0.22 j 6.6 <0.5 15.2 1.4 <0.1 438 1.33 1.14 CCR-02D 05/03/2017 3690 0.82 70.5 242 0.56 4.7 <0.1 <0.1 81.8 35.9 0.31 0.16 j 7.7 <0.5 17.5 1.4 B <0.1 596 0.99 -0.0334 CCR-02D 06/27/2017 3510 0.94 68.2 234 0.18 j 4 <0.1 1.2 84.9 34.9 0.4 0.11 j 7.49 <0.5 16.8 1.4 0.5 387 0.832 0.279 CCR-02D 08/22/2017 3620 0.95 68.4 236 0.36 j 4.7 <0.1 <0.1 77.4 NA 0.2 j <0.5 NA <0.5 NA 1.2 0.043 j 491 1.81 0.425 CCR-02S 06/10/2016 938 0.22 19.1 103 <0.5 118 0.12 1.2 6 5.81 <0.2 <0.5 <5 17.4 27.4 8.6 0.43 303 1.03 2.7 CCR-02S 07/27/2016 1820 0.28 33.9 164 0.52 177 0.11 1.7 7.6 10.1 0.23 <0.5 <5 33.9 17 14.3 0.55 475 1.81 1.63 CCR-02S 09/23/2016 5930 <0.8 102 197 <5 198 0.13 2.1 8.2 j 30.9 0.23 <5 <50 54.8 38.5 j 14.6 0.66 j 520 2.43 2.77 CCR-02S 11/15/2016 4990 0.47 92.2 321 2 299 0.1 3.6 9.5 25.2 0.14 j <0.5 <25 48.3 16.4 j 17.4 0.72 86 6.83 5.4 CCR-02S 01/10/2017 5400 0.51 87.2 333 12.7 379 0.23 4.1 10.8 25.8 0.42 0.24 j <25 79 12.8 j 27.2 0.78 819 3.68 4.15 CCR-02S 03/09/2017 5100 0.41 90.6 315 2.1 315 0.15 2.9 8.3 25.2 0.16 j 0.38 j <25 D3 54.3 14.2 D3 26.6 0.72 605 4.84 4.06 CCR-02S 05/03/2017 2790 0.31 47.8 201 1.2 165 0.16 2 7.5 13.6 0.34 0.11 j <5 44.2 11.2 25.3 0.63 425 2.09 2.38 CCR-02S 06/27/2017 1930 0.16 31.1 109 0.61 136 0.11 <0.1 6.1 8.93 0.22 <0.5 <5 12.7 13.2 22 0.043 j 256 3.02 2.04 CCR-02S 08/22/2017 2750 0.29 47.2 199 1.3 218 0.093 j 2.1 7.2 NA <0.2 <0.5 NA 32.8 NA 17.3 0.68 438 3.67 2.48 Prepared by: ALA Checked by: CDE Notes: < - concentration not detected at or above the adjusted reporting limit. Deg C - Degrees Celsius j - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit. umhos/cm - Micro mhos per centimeter ug/L - Micrograms per liter mg/L - Milligrams per liter mV - Millivolts NTU - Nephelometric turbidity units NA - Not analyzed ORP - Oxidation Reduction Potential pCi/L - picocuries per liter D3 - Sample was diluted due to the presence of high levels of non-target analytes or other matrix interference. Spec Cond - Specific Conductance S.U. - Standard Unit B - Target analyte detected in method blank at or above the reporting limit. Temp - Temperature ANALYTICAL RESULTS (TOTAL CONCENTRATION) CONTINUED ANALYTICAL RESULTS (TOTAL CONCENTRATION) CONTINUED TABLE 3-1 ASH BASIN GROUNDWATER EXTRACTION WELL SYSTEM DATA BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS LLC, BELEWS CREEK, NC P:\Duke Energy Carolinas\20. BELEWS CREEK\14.CCP Accelerated Remediation GW Extraction System\IAP Effectiveness Monitoring Report\Tables\Table 3-1 Ash Basin Groundwater Extraction Well System Data Page 1 of 4 Total Flow Weekly Flow Pressure Water Level Water Level Total Flow Weekly Flow Pressure Water Level Water Level Total Flow Weekly Flow Pressure Water Level Water Level gallons gallons (psi)(ft above transducer)(feet MSL)gallons gallons (psi)(ft above transducer)(feet MSL)gallons gallons (psi)(ft above transducer)(feet MSL) 3/19/2018 234,340 -27 29.10 742.90 35,050 -24 21.40 734.70 10,840 -24 21.70 742.40 3/26/2018 265,590 31,250 21 14.30 728.10 52,750 17,700 26 25.40 738.70 17,080 6,240 21 15.90 736.60 4/2/2018 311,250 45,660 21 14.60 728.40 69,950 17,200 26 27.40 740.70 23,290 6,210 19 10.30 731.00 4/9/2018 347,950 36,700 27 28.90 742.70 87,420 17,470 24 22.80 736.10 29,390 6,100 22 16.60 737.30 4/16/2018 390,190 42,240 27 29.10 742.90 104,770 17,350 21 14.70 728.00 35,620 6,230 22 17.30 738.00 4/23/2018 424,540 34,350 27 28.90 742.70 122,360 17,590 23 19.40 732.70 42,130 6,510 22 16.70 737.40 4/30/2018 465,760 41,220 27 29.30 743.10 140,620 18,260 23 19.90 733.20 48,500 6,370 21 15.70 736.40 5/7/2018 511,070 45,310 27 29.30 743.10 158,500 17,880 23 19.90 733.20 55,040 6,540 21 15.70 736.40 5/14/2018 564,650 53,580 21 16.10 729.90 176,290 17,790 22 18.60 731.90 61,170 6,130 22 16.60 737.30 5/21/2018 635,240 70,590 22 16.40 730.20 194,720 18,430 24 21.30 734.60 67,480 6,310 23 19.90 740.60 5/28/2018 715,920 80,680 14 0.09 713.89 213,390 18,670 21 15.30 728.60 74,120 6,640 23 19.70 740.40 Date EX-3EX-2EX-1 TABLE 3-1 ASH BASIN GROUNDWATER EXTRACTION WELL SYSTEM DATA BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS LLC, BELEWS CREEK, NC P:\Duke Energy Carolinas\20. BELEWS CREEK\14.CCP Accelerated Remediation GW Extraction System\IAP Effectiveness Monitoring Report\Tables\Table 3-1 Ash Basin Groundwater Extraction Well System Data Page 2 of 4 Total Flow Weekly Flow Pressure Water Level Water Level Total Flow Weekly Flow Pressure Water Level Water Level Total Flow Weekly Flow Pressure Water Level Water Level gallons gallons (psi)(ft above transducer)(feet MSL)gallons gallons (psi)(ft above transducer)(feet MSL)gallons gallons (psi)(ft above transducer)(feet MSL) 3/19/2018 77,710 -14 0.09 715.19 18,350 -23 20.20 737.70 20,470 -19 10.98 734.28 3/26/2018 100,110 22,400 29 32.80 747.90 24,070 5,720 21 14.80 732.30 35,810 15,340 26 25.40 748.70 4/2/2018 139,020 38,910 24 21.40 736.50 29,330 5,260 25 23.70 741.20 47,440 11,630 21 14.80 738.10 4/9/2018 168,630 29,610 23 20.60 735.70 34,300 4,970 24 21.10 738.60 61,040 13,600 21 14.80 738.10 4/16/2018 199,090 30,460 24 23.80 738.90 39,890 5,590 23 20.10 737.60 76,140 15,100 21 15.00 738.30 4/23/2018 216,940 17,850 15 0.00 715.10 45,520 5,630 22 16.80 734.30 93,100 16,960 21 16.10 739.40 4/30/2018 242,590 25,650 23 19.90 735.00 51,190 5,670 23 19.20 736.70 110,420 17,320 21 14.50 737.80 5/7/2018 272,090 29,500 23 19.90 735.00 56,820 5,630 23 19.20 736.70 128,690 18,270 21 14.50 737.80 5/14/2018 297,460 25,370 14 0.05 715.15 62,410 5,590 18 8.50 726.00 147,540 18,850 22 16.60 739.90 5/21/2018 328,630 31,170 24 23.30 738.40 68,030 5,620 21 15.50 733.00 164,340 16,800 24 21.90 745.20 5/28/2018 389,440 60,810 23 19.70 734.80 73,700 5,670 25 24.00 741.50 186,160 21,820 23 19.50 742.80 Date EX-4 EX-5 EX-6 TABLE 3-1 ASH BASIN GROUNDWATER EXTRACTION WELL SYSTEM DATA BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS LLC, BELEWS CREEK, NC P:\Duke Energy Carolinas\20. BELEWS CREEK\14.CCP Accelerated Remediation GW Extraction System\IAP Effectiveness Monitoring Report\Tables\Table 3-1 Ash Basin Groundwater Extraction Well System Data Page 3 of 4 Total Flow Weekly Flow Pressure Water Level Water Level Total Flow Weekly Flow Pressure Water Level Water Level Total Flow Weekly Flow Pressure Water Level Water Level gallons gallons (psi)(ft above transducer)(feet MSL)gallons gallons (psi)(ft above transducer)(feet MSL)gallons gallons (psi)(ft above transducer)(feet MSL) 3/19/2018 74,440 -27 29.80 742.00 41,170 -25 24.90 724.40 11,920 -21 15.35 713.95 3/26/2018 80,190 5,750 29 34.10 746.30 46,040 4,870 29 33.90 733.40 17,760 5,840 30 35.40 734.00 4/2/2018 84,110 3,920 26 27.00 739.20 50,800 4,760 25 24.60 724.10 23,350 5,590 27 29.00 727.60 4/9/2018 88,270 4,160 25 24.30 736.50 55,610 4,810 24 22.40 721.90 28,630 5,280 21 15.40 714.00 4/16/2018 92,720 4,450 27 28.80 741.00 60,390 4,780 26 27.50 727.00 33,760 5,130 21 16.40 715.00 4/23/2018 96,760 4,040 28 30.20 742.40 65,190 4,800 25 23.90 723.40 38,910 5,150 26 26.10 724.70 4/30/2018 102,160 5,400 22 17.10 729.30 69,990 4,800 26 27.40 726.90 44,170 5,260 27 29.80 728.40 5/7/2018 108,690 6,530 22 17.10 729.30 74,770 4,780 26 27.40 726.90 49,380 5,210 27 29.80 728.40 5/14/2018 116,770 8,080 28 31.30 743.50 79,510 4,740 27 28.40 727.90 54,590 5,210 26 26.70 725.30 5/21/2018 129,550 12,780 28 31.30 743.50 84,300 4,790 27 28.70 728.20 60,090 5,500 27 29.20 727.80 5/28/2018 133,360 3,810 30 36.00 748.20 89,140 4,840 23 20.90 720.40 66,160 6,070 21 14.70 713.30 Date EX-9EX-7 EX-8 TABLE 3-1 ASH BASIN GROUNDWATER EXTRACTION WELL SYSTEM DATA BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS LLC, BELEWS CREEK, NC P:\Duke Energy Carolinas\20. BELEWS CREEK\14.CCP Accelerated Remediation GW Extraction System\IAP Effectiveness Monitoring Report\Tables\Table 3-1 Ash Basin Groundwater Extraction Well System Data Page 4 of 4 Total Flow Weekly Flow Pressure Water Level Water Level Total Flow Weekly Flow gallons gallons (psi)(ft above transducer)(feet MSL)gallons gallons 3/19/2018 144,490 -27 29.30 728.50 365,190 365,190 Leaks were repaired in EX-1, 3, 4, & 6-10 piping within vaults. EX-4 is not pumping possibly due to a bad transducer 3/26/2018 145,090 600 27 29.40 728.60 602,000 236,810 New level transducer added in EX-4. New SD card added to remote telemtry cube box for EX-1 thru EX-5 4/2/2018 145,610 520 25 25.40 724.60 893,570 291,570 4/9/2018 146,120 510 26 26.20 725.40 1,202,660 309,090 4/16/2018 146,640 520 27 29.50 728.70 1,494,720 292,060 4/23/2018 147,140 500 25 23.10 722.30 1,824,300 329,580 EX-4 was operating but pump was not cutting off. Set it from Open loop to Closed loop. Observed pump on at 25 ft and off at 19 ft 4/30/2018 147,660 520 24 22.50 721.70 2,115,660 291,360 5/7/2018 148,150 490 24 22.50 721.70 2,395,170 279,510 5/14/2018 148,640 490 23 20.00 719.20 2,668,340 273,170 EX-4 was operating but pump was not cutting off. Opened the disconnect then closed back one hr later. Observed pump cut on at 25 ft and off at 19 ft 5/21/2018 149,130 490 25 23.50 722.70 2,903,320 234,980 Reset EX-4 to open loop at a set point of 22 ft 5/28/2018 149,620 490 21 15.30 714.50 3,172,030 268,710 EX-7 was not cutting on. Cycled disconnect and pump was working. Set to closed loop then open loop. EX-1 not cutting off. Cycled disconnect and pump was working. Set to closed loop then open loop. Notes:Prepared by: ALA Checked by: CDE Data retrieved from: HydroVu Data Services on June 12, 2018 from www.hydrovu.com Maintenance notes provided by Duke Energy Belews Creek Steam Station plant personnel Water level (feet MSL) calculated using reported transducer elevation on Appendix A, Table 1 Belews Creek Extraction Well Construction Summary psi - pounds per square inch MAINTENANCE COMMENTS System DischargeEX-10 Date 2018 Startup and Effectiveness Monitoring Report July 17, 2018 Belews Creek Steam Station SynTerra P:\Duke Energy Carolinas\20. BELEWS CREEK\14.CCP Accelerated Remediation GW Extraction System\IAP Effectiveness Monitoring Report\FINAL IAP Effectiveness Monitoring Report 2018.docx APPENDICES TABLE 1 WELL CONSTRUCTION AND TELEMETRY SYSTEM INFORMATION BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS, LLC, BELEWS CREEK, NC P:\Duke Energy Carolinas\20. BELEWS CREEK\14.CCP Accelerated Remediation GW Extraction System\IAP Effectiveness Monitoring Report\Appendix A\Table 1-Belews Creek Extraction Well Construction Summary Page 1 of 1 Cube Sytem Device Address Cable ID Transducer ID EX-1 11/2/2017 55.3 764.2 34.3 729.9 55.3 708.9 10.0 45.3 718.9 708.9 708.9 53.4 710.8 20.0 744.2 734.0 50.4 713.8 A 2.0 556473 551896 EX-2 11/1/2017 44.4 753.7 24.4 729.3 44.4 709.3 10.0 34.4 719.3 709.3 709.3 43.4 710.3 7.8 745.9 734.0 40.4 713.3 A 3.0 556476 549344 EX-3 10/31/2017 40.8 756.7 14.8 741.9 39.8 716.9 10.0 30.8 725.9 715.9 715.9 39.0 717.7 8.5 748.2 734.0 36.0 720.7 A 4.0 556474 551892 EX-4 10/31/2017 47.6 758.5 34.6 723.9 47.6 710.9 10.0 37.6 720.9 710.9 710.9 46.5 712.0 10.7 747.8 734.0 43.4 715.1 A 5.0 556475 549812 EX-5 10/30/2017 45.0 757.9 35.0 722.9 42.0 715.9 10.0 35.0 722.9 712.9 712.9 43.4 714.5 10.1 747.8 734.0 40.4 717.5 A 6 556477 551793 EX-6 10/27/2017 38.1 757.3 23.1 734.2 37.1 720.2 10.0 28.1 729.2 719.2 719.2 37.0 720.3 9.4 747.9 734.0 34.0 723.3 B 2.0 556478 549821 EX-7 10/26/2017 50.1 757.6 23.1 734.5 46.1 711.5 10.0 40.1 717.5 707.5 707.5 48.4 709.2 10.5 747.1 734.0 45.4 712.2 B 3.0 556579 553181 EX-8 10/25/2017 65.3 757.5 55.3 702.2 61.3 696.2 10.0 55.3 702.2 692.2 692.2 63.4 694.1 11.1 746.4 734.0 58.0 699.5 B 4.0 556480 551894 EX-9 10/25/2017 64.9 756.6 54.9 701.7 58.9 697.7 10.0 54.9 701.7 691.7 691.7 63.4 693.2 8.8 747.8 734.0 58.0 698.6 B 5.0 556481 551364 EX-10 10/24/2017 66.5 757.2 46.5 710.7 66.5 690.7 10.0 56.5 700.7 690.7 690.7 65.0 692.2 9.5 747.7 734.0 58.0 699.2 B 6.0 556482 550621 Prepared by: ALA Checked by: CDE Notes: 1.Top of pump depths were measured in the field during pump installation 1Source: AMEC Foster Wheeler: 6550-17-0022 *Approximate Units are presented in feet bgs - Below Ground Surface btoc - Below Top of Casing WL - Water Level collected on day of pump installation 11/7/2017 Well ID Date Installed Total Depth (btoc)1 Top of Transition Zone (btoc)*1 Bottom of Transition Zone (btoc)*1 Top of Trans Zone Elevation Top of Casing (TOC) Elevation Insitu Default ID1Static Water Level Elevation Target Water Level Elevation Screen Length (ft)1 Top of Screen (btoc)1 Bottom of Pump (btoc)*1 Static WL (btoc)1 Transducer (btoc)1 Bottom of Trans Zone Elevation Top of Screen Elevation Bottom of Pump Elevation Transducer Elevation Bottom of Well Elevation Bottom of Screen Elevation Amec Foster Wheeler 5710 OLEANDER DR WILMINGTON, NC (910) 452-1185 PROJECT NUMBER:6550-17-0022 PROJECT NAME:Belews Creek- Extraction Wells BORING NUMBER:EX-1 COORDINATES N/A ELEVATION:N/A GWL:20.0 ft Below TOC DATE:11/6/17 GEOLOGIST/ENGINEER:C. Smillie DATE STARTED:11/1/2017 DRILLING CONTRACTOR:Cascade DATE COMPLETED:11/2/2017 DRILLING METHODS:Sonic PAGE 1 OF 1 SAMPLE DEPTH REMARKS (FT BGS) -- -- -10 - -- -- -20 - -- -- -30 - -- -- -40 - -- -- -50 - -- -- -60 - -- -- NOTES:Well screen set 45.3 ft to 55.3 ft (below top of casing) Developed 11/3/17 *Description depths are approximate 35.0-45.0: Fractured, lightly weathered ROCK mica gneiss (transition zone) 45.0-55.0: Fractured, lightly weathered mica gneiss (transition zone). Beginning to be more competant at bottom 25.0-35.0: Saprolite with mica gneiss rock fragments between 34.0-35.0 ft 5.0-15.0: Silt and rock fragments, likely fill material 15.0-25.0: Red to brown micaceous SILT with interbedded clay SOIL BORING LOGS DESCRIPTION 0.0-5.0: Red, low plasticity CLAY Amec Foster Wheeler 5710 OLEANDER DR WILMINGTON, NC (910) 452-1185 PROJECT NUMBER:6550-17-0022 PROJECT NAME:Belews Creek- Extraction Wells BORING NUMBER:EX-2 COORDINATES N/A ELEVATION:N/A GWL:7.8 ft. Below TOC DATE: 11/7/17 GEOLOGIST/ENGINEER:C. Smillie DATE STARTED:10/31/2017 DRILLING CONTRACTOR:Cascade DATE COMPLETED:11/1/2017 DRILLING METHODS:Sonic PAGE 1 OF 1 SAMPLE DEPTH REMARKS (FT BGS) -- -- -10 - -- -- -20 - -- -- -30 - -- -- -40 - -- -- -50 - -- -- -60 - -- -- NOTES:Well Screen set 34.4 feet to 44.5 feet (below top of casing) Well developed 11/3/17 *Description depths are approximate 35.0-45.0: Slightly weathered, micaceous gniess (ROCK) with fractures (Transition Zone) and increasing competancy 25.0-35.0: Slightly weathered, micaceous gniess (ROCK) with fractures (Transition Zone) 5.0-10.0: Brown or red, low plasticity CLAY 10.0-15.0: Micaceous saprolite with mica gneiss rock fragments 15.0-25.0: Micaceous saprolite with mica gneiss rock fragments SOIL BORING LOGS DESCRIPTION 0.0-5.0 Brown or red, low plasticity CLAY Amec Foster Wheeler 5710 OLEANDER DR WILMINGTON, NC (910) 452-1185 PROJECT NUMBER:6550-17-0022 PROJECT NAME:Belews Creek- Extraction Wells BORING NUMBER:EX-3 COORDINATES N/A ELEVATION:N/A GWL:8.5 ft Below TOC DATE: 11/6/17 GEOLOGIST/ENGINEER:C. Smillie DATE STARTED:10/31/2017 DRILLING CONTRACTOR:Cascade DATE COMPLETED:10/31/2017 DRILLING METHODS:Sonic PAGE 1 OF 1 SAMPLE DEPTH REMARKS (FT BGS) -- -- -10 - -- -- -20 - -- -- -30 - -- -- -40 - -- -- -50 - -- -- -60 - -- -- NOTES:Casing set 40.8 ft to 30.8 ft (below top of casing) Well developed 11/6/17 *Description depths are approximate 30.0-40.0: Slightly weathered, micaceous gneiss (ROCK) with fractures (Transition zone) 40.0-45.0: Competant micaceous gneiss (ROCK) 25.0-29.0: Slightly weathered, micaceous gneiss (ROCK) with fractures (Transition Zone) 29.0-30.0: Red and brown, low plasticity CLAY 5.0-15.0: Red and brown micacous CLAY with Saprolite 15.0-25.0: Slightly weathered, micaceous gniess (ROCK) with fractures (Transition Zone) SOIL BORING LOGS DESCRIPTION 0.0-5.0: Red and brown, low plasticity CLAY with silt Amec Foster Wheeler 5710 OLEANDER DR WILMINGTON, NC (910) 452-1185 PROJECT NUMBER:6550-17-0022 PROJECT NAME:Belews Creek- Extraction Wells BORING NUMBER:EX-4 COORDINATES N/A ELEVATION:N/A GWL:10.7 ft Below TOC DATE: 11/7/17 GEOLOGIST/ENGINEER:C. Smillie DATE STARTED:10/31/2017 DRILLING CONTRACTOR:Cascade DATE COMPLETED:10/31/2017 DRILLING METHODS:Sonic PAGE 1 OF 1 SAMPLE DEPTH REMARKS (FT BGS) -- -- -10 - -- -- -20 - -- -- -30 - -- -- -40 - -- -- -50 - -- -- -60 - -- -- NOTES:Well screen set at 47.6-37.6 ft. (below top of casing) Well developed 11/3/17 *Description depths are approximate 15.0-25.0: Micaceous Saprolite with some silt 25.0-35.0: Micaceaous saprolite with clay 35.0-48.0: Slightly weathered, micaceous gneiss (ROCK) with fractures (Transition zone) and increasing competancy SOIL BORING LOGS DESCRIPTION 0.0-5.0: Red and brown, low plasticity CLAY with silt 5.0-15.0: Red and brown micacous SILT with Saprolite Amec Foster Wheeler 5710 OLEANDER DR WILMINGTON, NC (910) 452-1185 PROJECT NUMBER:6550-17-0022 PROJECT NAME:Belews Creek- Extraction Wells BORING NUMBER:EX-5 COORDINATES N/A ELEVATION:N/A GWL:10.1 ft Below TOC DATE: 11/7/17 GEOLOGIST/ENGINEER:C. Smillie DATE STARTED:10/30/2017 DRILLING CONTRACTOR:Cascade DATE COMPLETED:10/30/2017 DRILLING METHODS:Sonic PAGE 1 OF 1 SAMPLE DEPTH REMARKS (FT BGS) -- -- -10 - -- -- -20 - -- -- -30 - -- -- -40 - -- -- -50 - -- -- -60 - -- -- NOTES:Well screen set at 45.0- 35.0 ft (below top of casing) Well developed 11/3/17 *Description depths are approximate 35.0-45.0: Slightly weathered, micaceous gneiss (ROCK) with fractures (Transition zone) and with increasing competancy 25.0-35.0: Weathered, fractured micaceous gneiss (ROCK) 5.0-15.0: Red and brown SILT with mica 15.0-25.0: Micaceous Saprolite with some clay SOIL BORING LOGS DESCRIPTION 0.0-5.0: Red and brown, low plasticity CLAY with silt Amec Foster Wheeler 5710 OLEANDER DR WILMINGTON, NC (910) 452-1185 PROJECT NUMBER:6550-17-0022 PROJECT NAME:Belews Creek- Extraction Wells BORING NUMBER:EX-6 COORDINATES N/A ELEVATION:N/A GWL:9.4 ft Below TOC DATE: 11/7/17 GEOLOGIST/ENGINEER:C. Smillie DATE STARTED:10/27/2017 DRILLING CONTRACTOR:Cascade DATE COMPLETED:10/27/2017 DRILLING METHODS:Sonic PAGE 1 OF 1 SAMPLE DEPTH REMARKS (FT BGS) -- -- -10 - -- -- -20 - -- -- -30 - -- -- -40 - -- -- -50 - -- -- -60 - -- -- NOTES:Well screen set at 38.1 ft to 28.1 ft (below top of casing) Well developed 11/3/17 *Description depths are approximate 35.0-40.0: Slightly weathered, micaceous gneiss (ROCK) with fractures (Transition zone) and with increasing competancy 40.0-41.0: Competant micaceaous gneiss (ROCK) 25.0-35.0: Weathered, fractured micaceous gneiss (ROCK) 5.0-15.0: Red and brown SILT with mica 15.0-25.0: Micaceous Saprolite with some clay SOIL BORING LOGS DESCRIPTION 0.0-5.0: Red and brown, low plasticity CLAY with silt Amec Foster Wheeler 5710 OLEANDER DR WILMINGTON, NC (910) 452-1185 PROJECT NUMBER:6550-17-0022 PROJECT NAME:Belews Creek- Extraction Wells BORING NUMBER:EX-7 COORDINATES N/A ELEVATION:N/A GWL:10.5 ft Below TOC DATE: 11/7/17 GEOLOGIST/ENGINEER:C. Smillie DATE STARTED:10/25/2017 DRILLING CONTRACTOR:Cascade DATE COMPLETED:10/26/2017 DRILLING METHODS:Sonic PAGE 1 OF 1 SAMPLE DEPTH REMARKS (FT BGS) -- -- -10 - -- -- -20 - -- -- -30 - -- -- -40 - -- -- -50 - -- -- -60 - -- -- NOTES:Well screen between 50.1 ft and 40.1 (below top of casing) Well developed 11/2/17 *Description depths are approximate 35.0-45.0: Weathered, fractured micaceous gneiss (ROCK) with saprolite layer 44.0-45.0 45.0-50.0: Slightly weathered, micaceous gneiss (ROCK) with fractures (Transition zone) and with increasing competancy 50.0-57.0: Competant micaceaous gneiss (ROCK) 25.0-35.0: Weathered, fractured micaceous gneiss (ROCK) 5.0-15.0: Red and brown, low plasticity, micaceous CLAY with silt 15.0-25.0: Red and brown, low plasticity, micaceous CLAY with silt SOIL BORING LOGS DESCRIPTION 0.0-5.0: Red and brown, low plasticity CLAY with silt Amec Foster Wheeler 5710 OLEANDER DR WILMINGTON, NC (910) 452-1185 PROJECT NUMBER:6550-17-0022 PROJECT NAME:Belews Creek- Extraction Wells BORING NUMBER:EX-8 COORDINATES N/A ELEVATION:N/A GWL:11.1 ft Below TOC DATE: 11/7/17 GEOLOGIST/ENGINEER:C. Smillie DATE STARTED:10/25/2017 DRILLING CONTRACTOR:Cascade DATE COMPLETED:10/25/2017 DRILLING METHODS:Sonic PAGE 1 OF 1 SAMPLE DEPTH REMARKS (FT BGS) -- -- -10 - -- -- -20 - -- -- -30 - -- -- -40 - -- -- -50 - -- -- -60 - -- -- NOTES:Well screen set at 65.3 ft to 55.3 ft Well developed 11/2/17 (below top of casing) *Description depths are approximate 35.0- 40.0: Micaceous saprolite 35.0-45.0: Weathered, fractured micaceous gneiss (ROCK) 45.0-55.0: Micaceous saprolite with SILT 55.0-65.0: Slightly weathered, micaceous gneiss (ROCK) with fractures (Transition zone) and with increasing competancy SOIL BORING LOGS DESCRIPTION 0.0-5.0: Red and brown, low plasticity CLAY with silt 5.0-15.0: Red and brown, micaceous SILT 15.0-25.0: Red and brown, micaceous SILT 25.0-35.0: Micaceous saprolite Amec Foster Wheeler 5710 OLEANDER DR WILMINGTON, NC (910) 452-1185 PROJECT NUMBER:6550-17-0022 PROJECT NAME:Belews Creek- Extraction Wells BORING NUMBER:EX-9 COORDINATES N/A ELEVATION:N/A GWL:8.8 ft Below TOC DATE: 11/7/17 GEOLOGIST/ENGINEER:C. Smillie DATE STARTED:10/24/2017 DRILLING CONTRACTOR:Cascade DATE COMPLETED:10/25/2017 DRILLING METHODS:Sonic PAGE 1 OF 1 SAMPLE DEPTH REMARKS (FT BGS) -- -- -10 - -- -- -20 - -- -- -30 - -- -- -40 - -- -- -50 - -- -- -60 - -- -- NOTES:Well screen set at 64.9 ft to 54.9 ft. (below top of casing) Well developed 11/2/17 *Description depths are approximate 35.0- 45.0: Micaceous saprolite 45.0-55.0: Micaceous saprolite with CLAY and granite 55.0-59.0: Fractured granite 59.0-65.0: Slightly weathered, micaceous gneiss (ROCK) with fractures (Transition zone) and with increasing competancy 30.0-35.0: Red and brown, micaceous saprolite with silt SOIL BORING LOGS DESCRIPTION 0.0-5.0: Red and brown, low plasticity CLAY with silt 5.0-10.0:Orange, low plasticity CLAY 10.0-15.0: Red and brown, micaceous saprolite with silt 15.0-20.0:Orange, low plasticity CLAY 20.0-25.0: Red and brown, micaceous saprolite with silt 25.0-30.0:Orange, low plasticity CLAY Amec Foster Wheeler 5710 OLEANDER DR WILMINGTON, NC (910) 452-1185 PROJECT NUMBER:6550-17-0022 PROJECT NAME:Belews Creek- Extraction Wells BORING NUMBER:EX-10 COORDINATES N/A ELEVATION:N/A GWL: 9.5 ft Below TOC TIME:11/6/17 GEOLOGIST/ENGINEER:C. Smillie DATE STARTED:10/23/2017 DRILLING CONTRACTOR:Cascade DATE COMPLETED:10/24/2017 DRILLING METHODS:Sonic PAGE 1 OF 1 SAMPLE DEPTH REMARKS (FT BGS) -- -- -10 - -- -- -20 - -- -- -30 - -- -- -40 - -- -- -50 - -- -- -60 - -- -- NOTES:Well scren set at 66.5 ft -56.5 ft (below top of casing) Well developed 11/1/17 *Description depths are approximate 35.0- 40.0: Micaceous saprolite 35.0-45.0: Micaceous saprolite 45.0-55.0: Slightly weathered, micaceous gneiss (ROCK) with fractures (Transition zone) and with increasing competancy 25.0-35.0: Red and brown, micaceous SILT 55.0-65.0: Slightly weathered, granite (ROCK) with fractures (Transition zone) 5.0-15.0: Red and brown, low porosity, micaceous CLAY 15.0-25.0: Red and brown, micaceous SILT SOIL BORING LOGS DESCRIPTION 0.0-5.0: Red SILT with some clay Amec Foster Wheeler 5710 OLEANDER DR WILMINGTON, NC (910) 452-1185 PROJECT NUMBER:6550-17-0022 PROJECT NAME:Belews Creek- Extraction Wells BORING NUMBER:EXOB-1 COORDINATES N/A ELEVATION:N/A GEOLOGIST/ENGINEER:C. Smillie DATE STARTED:11/2/2017 DRILLING CONTRACTOR:Cascade DATE COMPLETED:11/2/2017 DRILLING METHODS:Sonic PAGE 1 OF 1 SAMPLE DEPTH REMARKS (FT BGS) -- -- -10 - -- -- -20 - -- -- -30 - -- -- -40 - -- -- -50 - -- -- -60 - -- -- NOTES:*Description depths are approximate 35.0-45.0: Slightly weathered, micaceous gneiss (ROCK) with fractures (Transition zone) 45.0-53.0: Slightly weathered, micaceous gneiss (ROCK) with fractures (Transition zone) and increasing competancy 25.0-35.0: Micaceaous saprolite 5.0-15.0: Red and brown, low plasticity, micacous CLAY 15.0-25.0: Micaceous Saprolite SOIL BORING LOGS DESCRIPTION 0.0-5.0: Red and brown, low plasticity CLAY Amec Foster Wheeler 5710 OLEANDER DR WILMINGTON, NC (910) 452-1185 PROJECT NUMBER:6550-17-0022 PROJECT NAME:Belews Creek- Extraction Wells BORING NUMBER:EXOB-2 COORDINATES N/A ELEVATION:N/A GEOLOGIST/ENGINEER:C. Smillie DATE STARTED:11/3/2017 DRILLING CONTRACTOR:Cascade DATE COMPLETED:11/3/2017 DRILLING METHODS:Sonic PAGE 1 OF 1 SAMPLE DEPTH REMARKS (FT BGS) -- -- -10 - -- -- -20 - -- -- -30 - -- -- -40 - -- -- -50 - -- -- -60 - -- -- NOTES:*Description depths are approximate 35.0-38.0: Slightly weathered, micaceous gneiss (ROCK) with fractures (Transition zone) and increasing competancy 25.0-35.0: Slightly weathered, micaceous gneiss (ROCK) with fractures (Transition zone) 5.0-15.0: Red and brown, low plasticity, micacous CLAY 15.0-25.0: Micaceous Saprolite SOIL BORING LOGS DESCRIPTION 0.0-5.0: Red and brown, low plasticity CLAY