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HomeMy WebLinkAbout23076_RalMGP2II_GWMR_20191219hart '� hickman SMARTER ENVIRONMENTAL SOLUTIONS Via Email December 19, 2019 NCDEQ Division of Waste Management Superfund Section Special Remediation Branch 217 West Jones Street Raleigh, NC 27603 Attention: Mr. Patrick Watters Re: Semi -Annual Groundwater Effectiveness Report Former Raleigh MGP #2 Site Raleigh, North Carolina H&H Job No. SCA.008 Dear Patrick: On behalf of Dominion Energy North Carolina, Hart & Hickman, PC (H&H) is submitting this electronic copy of the November 2019 Semi -Annual Groundwater Effectiveness Report for the Former Raleigh #2 MGP Site. Should you have any questions or need any additional information, please feel free to contact me. Sincerely, Hart & Hickman, PC r;<-e_0'nC'x C. MoAev_ Leonard Moretz, PG Senior Consultant Attachment cc: Paul Biery, Dominion Energy 2923 South Tryon Street, Suite 100 3921 Sunset Ridge Rd, Suite 301 Charlotte, NC 28203 Raleigh, NC 27607 www.harthickman.com 704.586.0007 main 919.847.4241 main Tom Effinger Director, Environmental Services Dominion Energy, North Carolina Semi -Annual Groundwater Effectiveness Report Former Raleigh #2 Manufactured Gas Plant Site Dominion Energy North Carolina Raleigh, North Carolina H&H Job No. SCA-008 December 18, 2019 Leonard Moretz, PG Senior Project Manager Hart & Hickman, PC hart � hickman SMARTER ENVIRONMENTAL SOLUTIONS 2923 South Tryon Street, Suite 100 3921 Sunset Ridge Rd, Suite 301 Charlotte, NC 28203 Raleigh, NC 27607 www.harthickman.com 704.586.0007 main 919.847.4241 main Groundwater Effectiveness Report Former Raleigh #2 MGP Site Raleigh, North Carolina Prepared for Dominion Energy North Carolina H&H Job No. SCA-008 Table of Contents Section 1.0 Introduction and Site History Page No. .............I 2.0 November 2019 Groundwater Sampling..............................................................................3 2.1 Groundwater Flow..............................................................................................................3 2.2 Groundwater Sampling.......................................................................................................3 3.0 Sampling Results.....................................................................................................................5 3.1 Groundwater Quality..........................................................................................................5 3.2 Evaluation of Monitored Natural Attenuation Parameters.................................................6 4.0 Quality Assurance/Quality Control....................................................................................12 5.0 Summary and Conclusions...................................................................................................13 List of Tables Table 1 Summary of Monitoring Well Details and Groundwater Elevations Table 2 Summary of November 2019 Groundwater Analytical Data Table 3 Summary of Historical Groundwater Analytical Data (BTEX and PAHs) Table 4 Summary of Historic MNA Parameter Data List of Figures Figure 1 Site Location Map Figure 2 Surficial Aquifer Potentiometric Map (November 2019) Figure 3 Site Map and Groundwater Analytical Summary — BTEX and PAHs Only (November 2019) 1 hart "�4 hickman S:\AAA-Master Projects\SCANA\SCA.008 - Raleigh Long Term Monitoring\November 2019 Semi -Annual Sampling\Final to Client\Raleigh MGP Monitoring Rpt Nov 2019.docx SMARTER ENVIRONMENTAL SOLUTIONS List of Appendices Appendix A Groundwater Sampling Forms Appendix B Laboratory Analytical Report Appendix C Graphs of Constituents of Concern Above 2L Standards ii hart "�4 hickman S:\AAA-Master Projects\SCANA\SCA.008 - Raleigh Long Term Monitoring\November 2019 Semi -Annual Sampling\Final to Client\Raleigh MGP Monitoring Rpt Nov 2019.docx SMARTER ENVIRONMENTAL SOLUTIONS Groundwater Effectiveness Report Former Raleigh #2 MGP Site Raleigh, North Carolina Prepared for Dominion Energy North Carolina H&H Job No. SCA-008 1.0 Introduction and Site History Hart & Hickman, PC (H&H) has prepared this Groundwater Effectiveness Report (GER) describing the methods and results of semi-annual groundwater monitoring activities conducted in November 2019 at the Former Raleigh #2 Manufactured Gas Plant (MGP) site located at 600 West Cabarrus Street in Raleigh, North Carolina. This report summarizes results of the fourteenth semi- annual groundwater sampling conducted since the final source removal activities were conducted from January 2011 to March 2011. This semi-annual monitoring event included sampling and analysis of groundwater from eight monitoring wells as outlined in the Remedial Action Plan (RAP) dated September 2006. A site location map is provided as Figure 1. Site History The Raleigh #2 MGP operated from 1916 until 1953. The former MGP site structures were dismantled and demolished by 1989 and the facility operated as a PSNC Operations Center until December 2010. PSNC vacated the property in December 2010 prior to initiation of the final source removal. After completion of the source removal and submittal of the RAR, the property was transferred to Clancy & Theys; however, Dominion Energy North Carolina (DENC) remains the responsible party for former MGP impacts. Impacts to soil, groundwater, surface water, and sediment were delineated as part of a Remedial Investigation (RI) dated March 10, 2005 and a subsequent report "Remedial Investigation Report — Response to Comments" dated June 30, 2006. In September 2006, the RAP was submitted to the North Carolina Department of Environment and Natural Resources (NCDENR) to address soil and groundwater impacts on the site. As documented in the RAR, various excavations were conducted between 2001 through 2010 with a total of 53,947 tons of contaminated soil and MGP related non -hazardous waste material removed from the site. Through the course of the 1 hart ` hckman S:\AAA-Master Projects\SCANA\SCA.008 - Raleigh Long Term Monitoring\November 2019 Semi -Annual Sampling\Final to Client\Raleigh MGP . Monitoring Rpt Nov 2019.docx SMARTER ENVIRONMENTAL SOLUTIONS remediation, approximately 1,375 pounds of OBC® (mixture of sodium persulfate and calcium persulfate) in 2007, and 1,515 pounds of OBC® and EHC-O® (a facsimile of OBC® supplied by a different vendor) in 2011, was placed at the base of the various excavation areas to promote natural attenuation below the water table. During the course of the remedial activities the following monitoring wells were abandoned: TRC-2, TRC-21), TRC-4A, TRC-5, TRC-7, CTMW-11, MW-1, MW-2, MW-3, TRC-6, TRC-61), and TRC-8. Monitoring wells currently identified as TRC-1, TRC-4, TRC-41), TRC-9, and TRC-12 remained following remedial activities. During June 2007, four additional groundwater monitoring wells were installed to complete the groundwater monitoring network. This included replacement wells TRC-2SR, TRC-2DR, TRC-5R, and TRC-13 located adjacent to the Clancy and Theys property. Refer to Figure 2 for the locations of the existing and abandoned monitoring wells. Monitoring well abandonment records and well construction records are available in the 2007 RAR. 2 hart "�4 hickman S:\AAA-Master Projects\SCANA\SCA.008 - Raleigh Long Term Monitoring\November 2019 Semi -Annual Sampling\Final to Client\Raleigh MGP Monitoring Rpt Nov 2019.docx SMARTER ENVIRONMENTAL SOLUTIONS 2.0 November 2049 Groundwater Sampling 2.1 Groundwater Flow Groundwater elevation data were collected from eight site monitoring wells on November 13, 2019. The eight shallow monitoring wells were used to determine the direction of shallow groundwater flow. Consistent with previous data, the overall direction of shallow groundwater flow at the site is generally southerly. As discussed in the RI, shallow groundwater flows according to the paleo-topography with a groundwater trough that follows the northeast to southwest trending natural drainage channel. This natural depression now contains a manmade culvert and the surface topography has been built up causing the existing flat topography to mask any indications of the paleo-channel. A surficial aquifer potentiometric map generated from the November 13, 2019 gauging data is provided as Figure 2. The calculated horizontal hydraulic gradient from the site's upgradient monitoring well, TRC-9, to the downgradient monitoring well, TRC-12, is 0.026 ft/ft. A summary of well gauging data since March 2012 is provided in Table 1. 2.2 Groundwater Sampling Groundwater sampling was conducted by H&H on November 13, 2019 in accordance with the NCDENR-approved RAP, dated September 2006. Groundwater samples were collected from seven monitoring wells (TRC-2SR, TRC-2DR, TRC-4, TRC-4D, TRC-9, TRC-12, and TRC-13). During the sampling event, it was discovered that well MW-5R had been destroyed, therefore, no sample was collected. Samples from each well were analyzed for monitored natural attenuation parameters (MNA): alkalinity, manganese, ferrous iron, nitrate, and sulfate. In addition, the wells (except for TRC-9) were analyzed for select volatile organic compounds (VOCs) benzene, toluene, ethylbenzene, and xylenes (collectively BTEX) by EPA Method 8260B and polycyclic aromatic hydrocarbons (PAHs) by EPA Method 8270. Monitoring well TRC-9 is considered a background well and is only required to be analyzed for MNA parameters. A well location map is provided as Figure 3 and a summary of monitoring well details is provided in Table 1. 3 hart "�4 hickman S:\AAA-Master Projects\SCANA\SCA.008 - Raleigh Long Term Monitoring\November 2019 Semi -Annual Sampling\Final to Client\Raleigh MGP Monitoring Rpt Nov 2019.docx SMARTER ENVIRONMENTAL SOLUTIONS Prior to sampling, all site monitoring wells were gauged for depth -to -water. Low flow purging and sampling techniques were then employed using a peristaltic pump and dedicated tubing. Field measurements of pH, specific conductivity, temperature, dissolved oxygen (DO), oxidation-reduction potential (ORP), turbidity, and water level were recorded at five minute intervals with a minimum of four readings until measurements stabilized. Purging was considered complete following stabilization of the field parameters. Groundwater samples were collected following parameter stabilization. Samples collected for VOC analysis were taken from the tubing prior to entering the peristaltic pump (purge and trap method). Water generated during the purging and sampling process was containerized in DOT -approved 5-gallon buckets and later transported off -site for disposal by a properly licensed and permitted subcontractor. Groundwater field parameters and laboratory analytical data for the November 2019 sampling event are summarized in Table 2. Groundwater sampling forms are provided in Appendix A. Laboratory -supplied, properly preserved sample bottles were used for sample collection. A chain - of -custody record was completed for samples collected which included sample description, date collected, time collected, matrix, sample container information, and analyses required. The chain -of -custody was signed by H&H and placed along with the samples in an iced cooler for delivery to Eurofins TestAmerica Laboratories (TestAmerica) in Savannah, Georgia and Pensacola, Florida, both of which are North Carolina certified laboratories. The laboratory analytical reports and chain -of -custody are provided in Appendix B. 4 hart "�4 hickman S:\AAA-Master Projects\SCANA\SCA.008 - Raleigh Long Term Monitoring\November 2019 Semi -Annual Sampling\Final to Client\Raleigh MGP Monitoring Rpt Nov 2019.docx SMARTER ENVIRONMENTAL SOLUTIONS 3.0 Sampling Results 3.1 Groundwater Quality Groundwater quality data at the site has fluctuated over time; however, the observed concentrations for the November 2019 sampling event are well within the range of overall historic concentrations. Table 2 provides a summary of the November 2019 data and Table 3 provides a historical summary of groundwater quality data at the site. Constituent concentrations and groundwater elevation trend graphs for wells with detected concentrations are included in Appendix C. A summary of the November 2019 data is included below: • The sample collected from monitoring well TRC-2SR contained 1-methylnapthalene slightly above its NCAC 2L Groundwater Standard (2L Standard) for the first time. Monitoring well TRC-2DR continues to indicate no BTEX or PAH detections above 2L Standards. • Wells TRC-4 and TRC-4D both exhibited select BTEX and PAH compound concentrations above 2L Standards. BTEX concentrations in TRC-4 increased while PAH concentrations decreased when compared to the May 2019 sampling event; however, concentrations remained within the limits of historical data. BTEX and PAH concentrations in TRC-4D decreased overall when compared to the May 2019 sampling event. Select contaminants of concern, including benzene, detected in TRC-4D were at the lowest concentrations detected historically. The TRC-4/TRC-4D well cluster is located in close proximity to the area excavated in 2011. All of the MGP-related source material could not be removed due to subgrade utilities and it continues to leach constituents into groundwater. Additionally, former petroleum releases from historical USTs on the Clancy & Theys property are also believed to serve as a source of contamination in this area of the site. 5 hart "�4 hickman S:\AAA-Master Projects\SCANA\SCA.008 - Raleigh Long Term Monitoring\November 2019 Semi -Annual Sampling\Final to Client\Raleigh MGP Monitoring Rpt Nov 2019.docx SMARTER ENVIRONMENTAL SOLUTIONS • H&H was unable to collect a sample from TRC-5R due to the monitoring well having been destroyed. This well was located in what is currently an equipment laydown area. Apparently, activities by workers of the current property owner (Clancy & Theys) inadvertently broke off the flush -mount surface completion below grade. Well TRC-5R, was located immediately downgradient of the former MGP production building, an area that was excavated in the summer of 2003. However, all of the MGP-related source material was not excavated in this area due to subgrade utilities and potential compromise of the Clancy & Theys building. Therefore, elevated COC concentrations, well above 2L Standards, have been typical for samples collected from this well. • Monitoring well TRC-13 contained 1-methylnapthlaene at a concentration exceeding its 2L Standard. However, concentrations of COCs are generally within the limits of historical data. • Offsite, downgradient monitoring well TRC-12 contained a low concentration naphthalene, well below its 2LStandard. No other site related COCs were detected above laboratory detection limits. 3.2 Evaluation of Monitored Natural Attenuation Parameters To evaluate whether site conditions continue to support the natural attenuation of site related COCs, select site monitoring wells were analyzed via field and laboratory methods for chemical indicators of biodegradation. During biodegradation, microorganisms transform available nutrients into forms useful for energy and cell reproduction by facilitating the transfer of electrons from donors to acceptors. Electron donors include natural organic material and hydrocarbons. Electron acceptors include dissolved oxygen, nitrate, manganese, iron oxide (Fell'), sulfate, and carbon dioxide. Because of these interactions, biodegradation of hydrocarbons brings about measurable changes in the chemistry of the groundwater. Evidence of biodegradation includes a reduction in hydrocarbon concentrations over time and changes in electron donor (or their metabolites) 6 hart'` hickman S:\AAA-Master Projects\SCANA\SCA.008 - Raleigh Long Term Monitoring\November 2019 Semi -Annual Sampling\Final to Client\Raleigh MGP . Monitoring Rpt Nov 2019.docx SMARTER ENVIRONMENTAL SOLUTIONS concentrations in affected areas versus background or unaffected areas. In accordance with the approved RAP, site monitoring wells were also analyzed for electron donors or their metabolites including dissolved oxygen, manganese, ferrous iron (Fell), alkalinity, nitrate, and sulfate. The results of the biological indicator data are detailed below along with a discussion of corresponding evidence of hydrocarbon degradation. The natural attenuation parameter data are summarized in Table 2. Laboratory data are provided in Appendix B. Dissolved Oxygen Dissolved oxygen is the most thermodynamically favored electron acceptor used in the biodegradation of hydrocarbons. It is utilized by aerobic microorganisms through respiration and, as such, in areas where biological aerobic degradation is taking place, DO levels are typically lower in impacted regions of groundwater than in background areas. In general, DO concentrations of 1 to 2 mg/L are needed to support aerobic degradation. In areas where aerobic degradation has consumed a significant amount of oxygen, DO concentrations are generally less than 0.5 to 1 mg/L and indicate areas where anaerobic degradation of hydrocarbons may be taking place. During the November 2019 sampling event, measured DO concentrations in onsite wells ranged from 0.40 mg/L (background well TRC-9) to 5.04 mg/L (non -impacted well TRC-2RD). Only two of the seven wells had DO concentrations above 1 mg/L, which suggests that the majority of groundwater beneath the site is an anoxic environment. DO concentrations exhibited during the November 2019 event were generally within historical ranges found at the site. Redox potential and specific conductance readings also generally appear to be within historical ranges found at the site. Nitrate After DO has been depleted, nitrate can be used as an electron acceptor to mineralize hydrocarbons via denitrification. Denitrification is the next most thermodynamically favored of the electron acceptors after oxygen has been depleted for hydrocarbon mineralization. In areas where 7 hart "�4 hickman S:\AAA-Master Projects\SCANA\SCA.008 - Raleigh Long Term Monitoring\November 2019 Semi -Annual Sampling\Final to Client\Raleigh MGP Monitoring Rpt Nov 2019.docx SMARTER ENVIRONMENTAL SOLUTIONS denitrification is occurring, there will be a correlation between areas with affected groundwater and depleted nitrate concentrations relative to background. During the November 2019 sampling event, the background concentration of nitrate observed in monitoring well TRC-9 at a concentration of 2.79 mg/L. Similarly, downgradient off site well TRC-12 (which only contained a low detection of naphthalene) showed a nitrate concentration of 7.02 mg/L. Historically impacted monitoring wells TRC-4, TRC-4D, and TRC-13 contained nitrate concentrations of <0.0500 mg/L. Non -impacted monitoring well TRC-2DR had a nitrate concentration of 3.99 mg/L. The data indicates that denitrification is occurring and that nitrate levels in zones of impacted groundwater have been depleted to levels significantly lower than background concentrations. Manganese When DO in groundwater is depleted, anaerobic conditions exist and manganese is the most favored electron acceptor after nitrate. Manganese reduction occurs when manganese (Mn) is reduced to a dissolved state as manganese (Mn"). If such conditions exist, then elevated levels of MnII will be observed in affected groundwater. A background concentration of 0.560 mg/L Mn" was observed in monitoring well TRC-9. Elevated MnII concentrations ranging from 3.91 mg/L to 7.45 mg/L were identified in monitoring wells TRC-2SR, TRC-4, and TRC-13. Non -impacted wells TRC-2DR and TRC-12 had low manganese concentrations of <0.0100 mg/L and 0.549 mg/L, respectively. The data indicates that manganese reduction is occurring because MnII levels in zones of impacted groundwater are higher than the background concentration. Ferrous Iron (Fe") Iron reduction is an anaerobic process in which Fell' is reduced to Fell. To determine if FeIII is being used as an electron acceptor, Fe" or ferrous iron is measured. Areas with elevated hydrocarbon concentrations should coincide with areas of high Fell relative to background if biodegradation via iron reduction is occurring. 8 hart "�4 hickman S:\AAA-Master Projects\SCANA\SCA.008 - Raleigh Long Term Monitoring\November 2019 Semi -Annual Sampling\Final to Client\Raleigh MGP Monitoring Rpt Nov 2019.docx SMARTER ENVIRONMENTAL SOLUTIONS A background concentration of <0.100 mg/L ferrous iron was observed in monitoring well TRC-9. Elevated levels of ferrous iron were detected at concentrations ranging from 1.36 mg/L to 2.23 mg/L in monitoring wells TRC-2SR, TRC-4, and TRC-13. Ferrous iron was detected in the historically non -impacted wells TRC-2SR, TRC-2DR, and TRC-12 at concentrations of 2.23 mg/L, <0.100 mg/L, and <0.100 mg/L, respectively. The data indicates that iron reduction is occurring and that ferrous iron levels in zones of impacted groundwater are elevated compared to background concentrations. Sulfate Sulfate reduction is not as thermodynamically favorable as iron reduction. Further, sulfate reducing organisms are generally more sensitive to environmental conditions, and thus sulfate reduction is generally a less likely attenuation mechanism than those discussed above. Sulfate reduction has been shown to facilitate oxidation of BTEX constituents. In areas where sulfate reduction is occurring, decreased sulfate levels will be present relative to background levels. A background concentration of 39.6 mg/L was observed in monitoring well TRC-9. Sulfate concentrations ranged from 2.31 mg/L to 54.7 mg/L in monitoring wells TRC-4, TRC-41), and TRC-13 which are impacted with PAHs. The highest concentration of sulfate (200 mg/L) was detected in offsite/downgradient monitoring well TRC-12, which has historically not been impacted by site related constituents (contained a low concentration of naphthalene in November 2019). Sulfate in TRC-12 has historically been elevated, possibly due to the migration of persulfates which were added in the source area for remediation of groundwater in 2011. Sulfate concentrations have fluctuated over time in downgradient well TRC-12. The sulfate concentration detected in non -impacted monitoring well TRC-2DR is 54.7 mg/L. PH In general, pH values in the range of 6 to 8 standard units are favorable for petroleum degrading microorganisms. A summary of the pH values is provided in Table 2. Measured pH values were in the range of 5.83 to 9.36 standard units; background monitoring well TRC-9 was measured at a 9 hart'` hickman S:\AAA-Master Projects\SCANA\SCA.008 - Raleigh Long Term Monitoring\November 2019 Semi -Annual Sampling\Final to Client\Raleigh MGP . Monitoring Rpt Nov 2019.docx SMARTER ENVIRONMENTAL SOLUTIONS pH of 5.83. Background monitoring well TRC-9 had a pH value that was slightly outside of the favorable range for petroleum degradation with a concentration of 5.83 standard units. The pH detected in TRC-4D (9.36 standard units) is elevated when compared to historical data for this well. The elevated pH in TRC-4D is likely an anomaly and possible associated with an equipment error. Alkalinity Alkalinity is a general measure of an aquifer buffering capacity against acids that are a by-product of the aerobic and anaerobic biodegradation processes mentioned in this section. Aquifers with low buffering capacities are more susceptible to pH decreases. Generally, alkalinity concentrations greater than two times the background concentrations are sufficient for buffering against pH changes. Alkalinity can also be used to infer the amount of petroleum hydrocarbons that are destroyed within a plume. A background concentration of 72.7 mg/L alkalinity was measured in monitoring well TRC-9. The remaining monitoring wells sampled for alkalinity had concentrations ranging from 120 mg/L to 289 mg/L. Based on these alkalinity concentrations, it appears the Site aquifer has a sufficient buffering capacity to guard against possible pH decreases from the acids produced by anaerobic and aerobic degradation and would allow for natural degradation of site contaminants to occur. Oxidation -Reduction Potential (ORP) The ORP of groundwater is a measure of electron activity and is an indicator of the relative tendency of a solution to accept or transfer electrons. The ORP of a groundwater system depends upon and influences rates of biodegradation. Conditions in the solution are most conducive for supporting anaerobic biodegradation when ORP levels are less than +50 mV. ORP was measured at +88.3 mV in background monitoring well TRC-9. ORP measurements for other site monitoring wells were in the range of -167.1 mV to +69.0 mV. ORP levels less than +50 mV were identified in TRC-2SR, TRC-2DR, TRC-4, TRC-4D, and TRC-13, indicating that conditions in these wells are mostly conducive to anaerobic biodegradation. 10 hart'` hickman S:\AAA-Master Projects\SCANA\SCA.008 - Raleigh Long Term Monitoring\November 2019 Semi -Annual Sampling\Final to Client\Raleigh MGP . Monitoring Rpt Nov 2019.docx SMARTER ENVIRONMENTAL SOLUTIONS Overall, the MNA parameters indicate the aquifer conditions are still conducive to natural attenuation of the site specific COCs. 11 hart "�4 hickman S:\AAA-Master Projects\SCANA\SCA.008 - Raleigh Long Term Monitoring\November 2019 Semi -Annual Sampling\Final to Client\Raleigh MGP Monitoring Rpt Nov 2019.docx SMARTER ENVIRONMENTAL SOLUTIONS 4.0 Quality Assurance/Quality Control Samples were delivered to TestAmerica Laboratories under standard chain -of -custody documentation. Samples were received by the lab in good condition and met holding times and preservation requirements. Field quality control checks during the sampling event consisted of the following: • One laboratory filled trip blank (labeled as Trip Blank) accompanied the sampling team and the samples during shipment for each cooler containing water samples for VOC analysis. The trip blanks were analyzed for BTEX. • One equipment blank (labeled as EB) was collected in the field from the sampling equipment (peristaltic pump). The equipment blank was analyzed for BTEX and PAHs. The trip blanks were non -detect for BTEX. The equipment blank was non -detect for BTEX and PAHs. Refer to the laboratory analytical report in Appendix B for QA sample results. 12 hart "�4 hickman S:\AAA-Master Projects\SCANA\SCA.008 - Raleigh Long Term Monitoring\November 2019 Semi -Annual Sampling\Final to Client\Raleigh MGP Monitoring Rpt Nov 2019.docx SMARTER ENVIRONMENTAL SOLUTIONS 5.0 Summary and Conclusions Groundwater samples were collected from the groundwater monitoring network wells in November 2019 at the Former Raleigh #2 MGP site. The following is a summary of the results of this sampling event: • The sample collected from monitoring well TRC-2SR contained 1-methylnapthalene just above its 2L Standard for the first time. Monitoring well TRC-2DR continues to indicate no BTEX or PAH detections above 2L Standards. • Wells TRC-4 and TRC-4D both exhibited select BTEX and PAH compound concentrations above 2LStandards. BTEX concentrations in TRC-4 increased while PAH concentrations decreased when compared to the May 2019 sampling event; however, concentrations remained within the limits of historical data. BTEX and PAH concentrations in TRC-4D decreased overall when compared to the May 2019 sampling event. Select contaminants of concern, including benzene, detected in TRC-4D were at the lowest concentrations detected historically. The TRC-4/TRC-4D well cluster is located in close proximity to the area excavated in 2011. All of the MGP-related source material could not be removed due to subgrade utilities and it continues to leach constituents into groundwater. Additionally, former petroleum releases from historical USTs on the Clancy & Theys property are also believed to serve as a source of contamination in this area of the site. • H&H was unable to collect a sample from TRC-5R due to the monitoring well having been destroyed. This well was located in an equipment laydown area. Apparently, activities by workers of the current property owner (Clancy & Theys) inadvertently broke off the flush -mount surface completion below grade. Well TRC-5R, was located immediately downgradient of the former MGP production building, an area that was excavated in the summer of 2003. However, all of the MGP-related source material was not excavated in this area due to subgrade utilities and potential compromise of the Clancy & Theys building. Therefore, elevated COC concentrations, well above 2L Standards, have been typical for samples collected from this well. 13 hart "�4 hickman S:\AAA-Master Projects\SCANA\SCA.008 - Raleigh Long Term Monitoring\November 2019 Semi -Annual Sampling\Final to Client\Raleigh MGP Monitoring Rpt Nov 2019.docx SMARTER ENVIRONMENTAL SOLUTIONS • Monitoring well TRC-13 contained 1-methylnapthlaene at a concentration exceeding the 2L groundwater standards. However, concentrations of COCs are generally within the limits of historical data. • Downgradient, offsite monitoring well TRC-12 contained a low concentration of naphthalene, well below its 2L Standard. No other site related COCs were detected above the laboratory detection limits. • Evaluation of natural attenuation parameters indicate that natural attenuation is slowing at the site but is still conducive to natural attenuation of site specific COCs. Therefore, the MNA groundwater remedy is still considered the best option for the site at this time. The next groundwater sampling event will be conducted in May 2020, in accordance with the September 2006 RAP. After the May sampling event, data will be evaluated to determine if continued monitored natural attenuation remains a viable remedial strategy or if other remedial measures are warranted. 14 hart "�4 hickman S:\AAA-Master Projects\SCANA\SCA.008 - Raleigh Long Term Monitoring\November 2019 Semi -Annual Sampling\Final to Client\Raleigh MGP Monitoring Rpt Nov 2019.docx SMARTER ENVIRONMENTAL SOLUTIONS Tables 14 hart hickman SMARTER ENVIRONMENTAL SOLUTIONS Table 1 Summary of Monitoring Well Details and Ground Water Elevations Former Raleigh #2 MGP Site Raleigh, North Carolina H&H Job No. SCA-008 March 28, 2012 September 11, 2012 March 7, 2013 September 19, 2013 March 13, 2014 September 5, 2014 March 9,2015 Monitoring Well ID Date Installed Well Depth (ft - bgs) Screen Interval (ft - bgs) Well TOC Elevation (ft) Depth to Water (ft) Ground Water Elevation (ft) Depth to Water (ft) Ground Water Elevation (ft) Depth to Water (ft) Ground Water Elevation (ft) Depth to Water (ft) Ground Water Elevation (ft) Depth to Water (ft) Ground Water Elevation (ft) Depth to Water (ft) Ground Water Elevation (ft) Depth to Water (ft) Ground Water Elevation (ft) TRC-1 11/20/2002 15 5-15 282.97 2.10 280.87 2.17 280.80 2.10 280.87 2.38 280.59 1.97 281.00 1.84 281.13 1.83 281.14 TRC-2SR 6/19/2007 15 5-15 283.02 9.50 273.52 9.75 273.27 9.68 273.34 9.83 273.19 9.58 273.44 9.59 273.43 10.65 272.37 TRC-2DR 6/19/2007 62.5 57.5-62.5 283.28 8.87 274.41 5.80 277.48 6.03 277.25 5.88 277.40 5.95 277.33 5.52 277.76 5.87 277.41 TRC-4 11/20/2002 15 5-15 286.50 8.06 278.44 9.10 277.40 7.72 278.78 8.91 277.59 7.12 279.38 7.94 278.56 6.41 280.09 TRC-41) 10/7/2003 50.85 35-50 285.14 7.99 277.15 8.62 276.52 7.54 277.60 8.51 276.63 7.42 277.72 7.88 277.26 6.68 278.46 TRC-5R 6/19/2007 15 5-15 296.59 6.25 290.34 7.04 289.55 6.20 290.39 7.38 289.21 5.60 290.99 6.40 290.19 5.15 291.44 TRC-9 11/21/2002 15 5-15 295.47 5.29 290.18 5.21 290.26 5.28 290.19 6.34 289.13 4.35 291.12 4.82 290.65 3.87 291.60 TRC-12 9/20/2004 20 10-20 277.59 NM - 8.58 269.01 7.09 270.50 8.46 269.13 6.97 270.62 1 7.83 269.76 6.84 270.75 TRC-13 6/19/2007 15 5-15 290.75 2.80 287.95 3.31 287.44 2.36 288.39 2.91 287.84 1.69 289.06 1.64 289.11 0.60 290.15 October 13, 2015 April 13, 2016 October 13, 2016 April 11, 2017 November 14, 2017 April 19, 2018 November 19, 2018 Monitoring Well ID Date Installed Well Depth (ft - bgs) Screen Interval (ft - bgs) Well TOC Elevation (ft) Depth to Water (ft) Ground Water Elevation (ft) Depth to Water (ft) Ground Water Elevation (ft) Depth to Water (ft) Ground Water Elevation (ft) Depth to Water (ft) Ground Water Elevation (ft) Depth to Water (ft) Ground Water Elevation (ft) Depth to Water (ft) Ground Water Elevation (ft) Depth to Water (ft) Ground Water Elevation (ft) TRC-1 11/20/2002 15 5-15 282.97 1.78 281.19 1.76 281.21 1.59 281.38 2.18 280.79 2.34 280.63 2.10 280.87 1.69 281.28 TRC-2SR 6/19/2007 15 5-15 283.02 9.29 273.73 9.43 273.59 9.33 273.69 9.70 273.32 9.80 273.22 9.38 273.64 9.24 273.78 TRC-2DR 6/19/2007 62.5 57.5-62.5 283.28 4.25 279.03 8.70 274.58 5.40 277.88 6.28 277.00 6.08 277.20 5.95 277.33 5.60 277.68 TRC-4 11/20/2002 15 5-15 286.50 7.42 279.08 5.87 280.63 7.10 279.40 8.10 278.40 9.43 277.07 8.16 278.34 7.93 278.57 TRC-4D 10/7/2003 50.85 35-50 285.14 7.32 277.82 6.76 278.38 7.46 277.68 8.25 276.89 8.95 276.19 8.03 277.11 7.82 277.32 TRC-5R 6/19/2007 15 5-15 296.59 5.44 291.15 6.21 290.38 6.09 290.50 8.57 288.02 8.89 287.70 7.78 288.81 6.54 290.05 TRC-9 11/21/2002 15 5-15 295.47 3.92 291.55 NM NM 4.56 290.91 7.04 288.43 7.08 288.39 6.52 288.95 5.50 289.97 TRC-12 9/20/2004 20 10-20 277.59 7.53 270.06 7.83 269.76 7.49 270.10 1 7.73 269.86 8.39 269.20 7.86 1 269.73 7.65 269.94 TRC-13 6/19/2007 1 15 5-15 290.75 0.95 1 289.80 0.65 290.10 1.60 289.15 1 3.51 287.24 3.51 287.24 3.08 1 287.67 1 2.25 1 288.50 May 21, 2019 November 13, 2019 Monitoring Well ID Date Installed Well Depth (ft - bgs) Screen Interval (ft - bgs) Well TOC Elevation (ft) Depth to Water (ft) Ground Water Elevation (ft) Depth to Water (ft) Ground Water Elevation (ft) TRC-1 11/20/2002 15 5-15 282.97 1.96 281.01 2.00 280.97 TRC-2SR 6/19/2007 15 5-15 283.02 9.30 273.72 9.83 273.19 TRC-2DR 6/19/2007 62.5 57.5-62.5 283.28 5.85 277.43 5.89 277.39 TRC-4 11/20/2002 15 5-15 286.50 6.90 279.60 8.72 277.78 TRC-41) 10/7/2003 50.85 35-50 285.14 7.28 277.86 8.47 276.67 TRC-5R 6/19/2007 15 5-15 296.59 7.72 288.87 Destroyed TRC-9 11/21/2002 15 5-15 295.47 6.20 289.27 6.74 288.73 TRC-12 9/20/2004 20 10-20 277.59 7.47 270.12 7.90 269.69 TRC-13 6/19/2007 15 5-15 290.75 2.33 288.42 3.04 287.71 Notes: TOC = Top of Casing BGS = Below Grade Surface NM = Not measured S:\AAA-Master Projects\SCANA\SCA.008 - Raleigh Long Term Monitoring\November 2019 Semi -Annual Sampling\Tables\Tables November 2019 (Page 1 of 1) Hart & Hickman Table 2 Summary of November 2019 Ground Water Analytical Data Former Raleigh #2 MGP Raleigh, North Carolina H&H Job No. SCA.008 Well ID TRC-2SR TRC-2DR TRC-4 TRC-4D TRC-9 TRC-12 TRC-13 NCAC 2L GW Date Collected 11/13/19 11/13/19 11/13/19 11/13/19 11/13/19 11/13/19 11/13/19 Standard MNA Parameters Dissolved Oxygen (mg/L) 0.47 5.04 1.11 0.57 0.40 0.59 0.58 NS Redox Potential (ORP, mV) 5.40 22.4 -135.0 -167.1 88.3 69.0 -27.6 NS pH 6.33 6.82 5.95 9.36 5.83 6.03 6.38 6.5-8.5 Specific Conductivity (µS/cm) 578 420 433 215 254 804 509 NS Alkalinity (mg/L) 289 157 140 120 72.7 233 169 NS Ferrous Iron (mg/L) 2.23 <0.100 1.36 <0.100 <0.100 <0.100 1.56 NS Nitrate as N (mg/L) <0.0500 3.99 <0.0500 <0.0500 2.79 7.02 <0.0500 10 Sulfate (mg/L) 20.9 42.6 54.7 2.31 39.6 200 30.1 250 Final Turbidity (NTU) 1.41 <1.00 <1.00 2.04 4.02 <1.00 6.41 NS Metals Manganese (mg/L) 4.53 <0.0100 3.91 0.188 0.560 0.549 7.45 0.05 BTEX (EPA Method 8260B) (ug/L) Benzene <1.00 <1.00 730 2.12 NA <1.00 <1.00 1 Toluene <1.00 <1.00 149 <1.00 NA <1.00 <1.00 600 Ethylbenzene <1.00 <1.00 364 <1.00 NA <1.00 <1.00 600 Xylenes (Total) <10.0 <10.0 444 <10.0 NA <10.0 <10.0 500 PAHs (EPA Method 8270) 1-Methylnaphthalene 1.14 <0.183 231 48.7 NA <0.183 65.1 1 2-Methylnaphthalene 0.589 <0.183 220 23.3 NA <0.183 <0.880 30 Acenaphthene 1.35 <0.183 <8.80 70.9 NA <0.183 69.8 80 Acenaphthylene 0.562 <0.183 14.8 2.86 NA <0.183 65.1 200 Anthracene <0.216 <0.183 <8.80 7.15 NA <0.183 8.06 2,000 Fluoranthene 0.612 <0.183 <8.80 4.36 NA <0.183 5.03 300 Fluorene 1.49 <0.183 10.4 23.9 NA <0.183 9.72 300 Naphthalene 3.40 <0.183 1,510 51.2 NA 0.227 1.77 6 Phenanthrene 0.382 <0.183 19.0 41.8 NA <0.183 28.4 200 Pyrene 0.600 <0.183 <8.80 5.76 NA <0.183 7.66 200 Notes: PAHs = Polynuclear Aromatic Hydrocarbons BTEX = Benzene, toluene, ethylbenzene and xylenes NA = Not Analyzed NS = No Standard Available * Indicates Interim Maximum Allowable Concentrations (IMACs) Bold indicates exceeds NCAC 21, Ground Water Standard, April 2013 or Interim Maximum Allowable Concentration Only constituents detected in at least one sample are shown SMAA-Master Projects\SCANA\SCA.008 - Raleigh Long Term Monitoring\November 2019 Semi -Annual Sampling\Tables\Tables November 2019 Table 2 (Page 1 of 1) hart : hickman SMARTER ENVIRONMENTAL SOLUTIONS Table 3 Summary of Historical Groundwater Analytical Data - 2010 to Present (BTEX and PAHs Only) Former Raleigh #2 MGP Raleigh, North Carolina H&H Job No. SCA.008 VOCs (EPA Method 8260B) gp_/L PAHs (EPA Method 8270) u2/L Date Xylenes 1- 2- Benzo(a) Benzo(a) Benzo(b) Benzo(g,h,i) Benzo(k) Dibenzo(a,h) Indeno(1,2,3-cd) Well ID Collected Benzene Toluene Ethylbenzene (Total) Methylnaphthalene Methylnaphthalene Acenaphthene Acenaphthylene Anthracene anthracene pyrene fluoranthene perylene fluoranthene Chrysene anthracene Fluoranthene Fluorene pyrene Naphthalene Phenanthrene Pyrene NCAC 2L Standard 1 600 600 500 1* 30 80 200 2,000 0.05 0.005 0.05 200 0.5 5.0 0.005 300 300 0.05 6.0 200 200 3/24/10 <1.00 <1.00 <1.00 <3.00 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 9/15/10 <1.00 <1.00 <1.00 <1.00 <5.20 <5.20 <5.20 <5.20 <5.20 <5.20 <5.20 <5.20 <5.20 <5.20 <5.20 <5.20 <5.20 <5.20 <5.20 <5.20 <5.20 <5.20 9/20/11 <1.00 <1.00 <1.00 <3.00 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 3/28/12 <1.00 <1.00 <1.00 <3.00 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 9/11/12 <1.00 <1.00 <1.00 <3.00 <1.90 <1.90 7.12 3.62 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 3.80 7.02 <1.90 <1.90 <1.90 3.38 3/7/13 <1.00 <1.00 <1.00 <3.00 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 9/19/13 <1.00 <1.00 <1.00 <2.00 <1.79 <1.79 3.26 1.82 <1.79 <1.79 <1.79 <1.79 <1.79 <1.79 <1.79 <1.79 <1.79 1.89 <1.79 <1.79 <1.79 <1.79 3/13/14 <1.00 <1.00 <1.00 <3.00 <1.75 <1.75 <1.75 <1.75 <1.75 <1.75 <1.75 <1.75 <1.75 <1.75 <1.75 <1.75 <1.75 <1.75 <1.75 <1.75 <1.75 <1.75 9/5/14 <1.00 <1.00 <1.00 <2.00 <1.96 <1.96 <1.96 <1.96 <1.96 <1.96 <1.96 <1.96 <1.96 <1.96 <1.96 <1.96 <1.96 <1.96 <1.96 <1.96 <1.96 <1.96 TRC-2SR 3/9/15 <1.00 <1.00 <1.00 <2.00 <1.72 <1.72 <1.72 <1.72 <1.72 <1.72 <1.72 <1.72 <1.72 <1.72 <1.72 <1.72 <1.72 <1.72 <1.72 <1.72 <1.72 <1.72 10/13/15 <1.00 <1.00 <1.00 <3.00 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 4/13/16 <1.00 <1.00 <1.00 <3.00 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 10/13/16 <1.00 <1.00 <1.00 <3.00 < 1.92 < 1.92 < 1.92 < 1.92 < 1.92 < 1.92 < 1.92 < 1.92 < 1.92 < 1.92 < 1.92 < 1.92 < 1.92 < 1.92 < 1.92 < 1.92 < 1.92 < 1.92 4/11/17 <1.00 <1.00 <1.00 <3.00 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 11/14/17 <1.00 <1.00 <1.00 <3.00 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 2.32 <1.92 <1.92 <1.92 <1.92 4/19/18 <1.00 <1.00 <1.00 <3.00 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 11/19/18 <1.00 <1.00 <1.00 <3.00 <1.94 <1.94 <1.94 <1.94 <1.94 <1.94 <1.94 <1.94 <1.94 <1.94 <1.94 <1.94 <1.94 <1.94 <1.94 <1.94 <1.94 <1.94 5/21/19 <1.00 <1.00 <1.00 <10.0 <9.53 <9.53 <9.53 <9.53 <9.53 <9.53 <9.53 <9.53 <9.53 <9.53 <9.53 <9.53 <9.53 <9.53 <9.53 <9.53 <9.53 <9.53 11/13/19 <1.00 <1.00 <1.00 <10.0 1.14 0.589 1.35 0.562 <0.216 <0.216 <0.216 <0.216 <0.216 <0.216 <0.216 <0.216 0.612 1.49 <0.216 3.40 0.382 0.600 3/24/10 <1.00 <1.00 <1.00 <3.00 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 9/15/10 <1.00 <1.00 <1.00 <1.00 <5.20 <5.20 <5.20 <5.20 <5.20 <5.20 <5.20 <5.20 <5.20 <5.20 <5.20 <5.20 <5.20 <5.20 <5.20 <5.20 <5.20 <5.20 9/20/11 <1.00 <1.00 <1.00 <3.00 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 3/28/12 <1.00 <1.00 <1.00 <3.00 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 9/11/12 <1.00 <1.00 <1.00 <3.00 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 3/7/13 <1.00 <1.00 <1.00 <3.00 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 9/19/13 <1.00 <1.00 <1.00 <2.00 <1.79 <1.79 <1.79 <1.79 <1.79 <1.79 <1.79 <1.79 <1.79 <1.79 <1.79 <1.79 <1.79 <1.79 <1.79 <1.79 <1.79 <1.79 3/13/14 <1.00 <1.00 <1.00 <3.00 <1.75 <1.75 <1.75 <1.75 <1.75 <1.75 <1.75 <1.75 <1.75 <1.75 <1.75 <1.75 <1.75 <1.75 <1.75 <1.75 <1.75 <1.75 9/5/14 <1.00 <1.00 <1.00 <2.00 <1.96 <1.96 <1.96 <1.96 <1.96 <1.96 <1.96 <1.96 <1.96 <1.96 <1.96 <1.96 <1.96 <1.96 <1.96 <1.96 <1.96 <1.96 TRC-2DR 3/9/15 <1.00 <1.00 <1.00 <2.00 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 10/13/15 <1.00 <1.00 <1.00 <3.00 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 4/13/16 <1.00 <1.00 <1.00 <3.00 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 10/13/16 <1.00 <1.00 <1.00 <3.00 < 1.92 < 1.92 < 1.92 < 1.92 < 1.92 < 1.92 < 1.92 < 1.92 < 1.92 < 1.92 < 1.92 < 1.92 < 1.92 < 1.92 < 1.92 < 1.92 < 1.92 < 1.92 4/11/17 <1.00 <1.00 <1.00 <3.00 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 11/14/17 <1.00 <1.00 <1.00 <3.00 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 4/19/18 <1.00 <1.00 <1.00 <3.00 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 11/19/18 <1.00 <1.00 <1.00 <3.00 <2.00 <2.00 <2.00 <2.00 <2.00 <2.00 <2.00 <2.00 <2.00 <2.00 <2.00 <2.00 <2.00 <2.00 <2.00 <2.00 <2.00 <2.00 5/21/19 <1.00 <1.00 <1.00 <10.0 <9.60 <9.60 <9.60 <9.60 <9.60 <9.60 <9.60 <9.60 <9.60 <9.60 <9.60 <9.60 <9.60 <9.60 <9.60 <9.60 <9.60 <9.60 11/13/19 <1.00 <1.00 <1.00 <10.0 <0.183 <0.183 <0.183 <0.183 <0.183 <0.183 <0.183 <0.183 <0.183 <0.183 <0.183 <0.183 <0.183 <0.183 <0.183 <0.183 <0.183 <0.183 Notes: VOCs = Volatile Organic Compounds PAHs = Polycyclic Aromatic Hydrocarbons H = Compound concentration reported with possible high bias. LCS recovery for this compound was above established QC limits * = Interim Maximum Allowable Concentration (IMAC) April 2011 Bold indicates exceeds NCAC 2L Ground Water Standard or Interim Maximum Allowable Concentration S:\AAA-Master Projects\SCANA\SCA.008 - Raleigh Long Term Monitoring\November 2019 Semi -Annual Sampling\Tables\Tables November 2019 Table 3 (Page 1 of 3) Hart & Hickman, PC Table 3 Summary of Historical Groundwater Analytical Data - 2010 to Present (BTEX and PAHs Only) Former Raleigh #2 MGP Raleigh, North Carolina H&H Job No. SCA.008 VOCs (EPA Method 8260B) gp_/L PAHs (EPA Method 8270) u2/L Date Xylenes 1- 2- Benzo(a) Benzo(a) Benzo(b) Benzo(g,h,i) Benzo(k) Dibenzo(a,h) Indeno(1,2,3-cd) Well ID Collected Benzene Toluene Ethylbenzene (Total) Methylnaphthalene Methylnaphthalene Acenaphthene Acenaphthylene Anthracene anthracene pyrene fluoranthene perylene fluoranthene Chrysene anthracene Fluoranthene Fluorene pyrene Naphthalene Phenanthrene Pyrene NCAC 2L Standard 1 600 600 500 1* 30 80 200 2,000 0.05 0.005 0.05 200 0.5 5.0 0.005 300 300 0.05 6.0 200 200 3/25/10 310 130 17.0 197 67.0 89.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 1,000 <10.0 <10.0 9/15/10 4,500 1,500 170 1,700 400 590 9.20 55.0 9.10 <5.20 <5.20 <5.20 <5.20 <5.20 <5.20 <5.20 <5.20 19.0 <5.20 4,700 43 <5.20 9/21/11 2,000 870 170 19400 550 750 11.0 43.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 20.0 <10.0 59600 39 <10.0 3/28/12 1,000 390 <100 650 240 340 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 2,700 <10 <10.0 9/11/12 1,420 610 163 19070 613 876 10.7 23.8 7.27 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 5.37 21.5 <1.90 69190 40.1 7.55 3/7/13 480 190 <50.0 290 <210 <210 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 1,300 <10.0 <10.0 9/19/13 1,550 694 108 875 574 278 11.5 52.6 6.74 <1.79 <1.79 <1.79 <1.79 <1.79 <1.79 <1.79 3.34 22.3 <1.79 4,100 37.9 5.11 3/13/14 7.38 10.8 6.83 51.3 29 41.1 <1.75 <1.75 <1.75 <1.75 <1.75 <1.75 <1.75 <1.75 <1.75 <1.75 <1.75 <1.75 <1.75 357 2.41 <1.75 9/5/14 1,470 998 181 19190 452 616 <40.8 <40.8 <40.8 <40.8 <40.8 <40.8 <40.8 <40.8 <40.8 <40.8 <40.8 <40.8 <40.8 5,960 <40.8 <40.8 TRC-4 3/9/15 3.13 5.43 2.49 17.2 14.9 20.8 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 196 <1.82 <1.82 10/13/15 <1.00 <1.00 <1.00 <3.00 119 133 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 19190 10.2 <10.0 4/13/16 1.99 <1.00 <1.00 <3.00 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 9.69 <1.82 <1.82 10/13/16 161 60.8 21.3 68.0 36.9 30.7 < 1.89 1.99 < 1.89 < 1.89 < 1.89 < 1.89 < 1.89 < 1.89 < 1.89 < 1.89 < 1.89 2.83 < 1.89 320 6.7 < 1.89 4/11/17 384 131 33.2 98.7 28.1 20.0 <1.92 1.97 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 245 2.37 <1.92 11/14/17 19150 1,010 226.00 19210 566 773 <19.2 61.60 <19.2 <19.2 <19.2 <19.2 <19.2 <19.2 <19.2 <19.2 <19.2 42.70 <19.2 49700 55.90 <19.2 4/19/18 47.4 16.1 12.0 40.9 10.6 3.55 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 10.6 <1.92 <1.92 11/19/18 679 338 132 389 178 108 2.95 12.1 <1.83 <1.83 <1.83 <1.83 <1.83 <1.83 <1.83 <1.83 <1.83 4.59 <1.83 1,320 7.36 <1.83 5/21/19 215 156 43.7 199 290 282 <10.2 12.1 <10.2 <10.2 <10.2 <10.2 <10.2 <10.2 <10.2 <10.2 <10.2 <10.2 <10.2 19860 <10.2 <10.2 11/13/19 730 364 149 444 231 220 <8.80 14.8 <8.80 <8.80 <8.80 <8.80 <8.80 <8.80 <8.80 <8.80 <8.80 10.4 <8.80 1,510 19.0 <8.80 3/25/2010 310 10 35 144 390 140 160 16.0 13.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 33.0 <10.0 870 73.0 <10.0 9/15/2010 140 7.1 27 110 440 180 220 27.0 20.0 <5.20 <5.20 <5.20 <5.20 <5.20 <5.20 <5.20 <5.20 46.0 <5.20 19100 95.0 8.40 9/21/2011 100 8.3 35 130 540 350 150 16.0 16.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 42.0 <10.0 19500 82.0 <10.0 3/28/12 110 11 35 140 690 460 190 18.0 22.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 59.0 <10.0 29200 98.0 14.0 9/11/12 63.2 5.74 26.2 95.2 664 394 276 15.1 16.1 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 6.12 49.7 <1.90 29000 86.7 7.74 3/7/13 91 <10.0 23 130 700 430 290 <10.0 20 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 58.0 <10.0 19900 97.0 11.0 9/19/13 58.8 6.94 33.9 123 817 621 371 20.1 14.7 <1.79 <1.79 <1.79 <1.79 <1.79 <1.79 <1.79 4.58 54.9 <1.79 2,830 121 6.50 3/13/14 3.83 <1.00 4.71 30.4 497 278 192 13.2 14.1 <1.75 <1.75 <1.75 <1.75 <1.75 <1.75 <1.75 5.62 45.8 <1.75 416 73.9 7.38 9/5/14 43.7 5.8 26.5 122 386 253 162 11.4 12.9 <9.80 <9.80 <9.80 <9.80 <9.80 <9.80 <9.80 6.16 40.8 <9.80 1,210 60.1 7.96 TRC-4D 3/9/15 34.6 6.35 29.2 115 462 293 181 10.8 10.5 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 3.84 37.6 <1.82 19300 57.7 5.40 10/13/15 <1.00 <1.00 <1.00 <3.00 532E 341 202 12.8 15.8 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 47.8 <10.0 19650 91.3 11.9 4/13/16 32.6 22.5 5.76 91.5 383 210 152 11.3 11.0 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 5.35 36.6 <1.85 19210 68.4 7.11 10/13/16 31.2 5.21 23.5 91.3 440 261 172 12.5 9.40 < 1.89 < 1.89 < 1.89 < 1.89 < 1.89 < 1.89 < 1.89 3.27 38.8 < 1.89 1270 58.3 4.62 4/11/17 34.6 5.38 16.9 68.5 189 102 74.0 5.02 4.08 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 687.0 26 2.33 11/14/17 36.3 5.97 21.2 92.9 661 521 350 20.5 14.7 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 5.14 58.0 <1.92 19960 115 6.78 4/19/18 11.9 1.94 6.21 28.6 23.8 23.2 12.6 7.56 3.96 <1.79 <1.79 <1.79 <1.79 <1.79 <1.79 <1.79 2.81 14.1 <1.79 79.0 10.1 3.61 11/191/8 22.4 4.42 16.60 66.4 435 262 200 10.8 13.3 <1.96 <1.96 <1.96 <1.96 <1.96 <1.96 <1.96 7.65 40.2 <1.96 19230 97 11.1 5/21/19 19.3 2.98 7.96 37.5 353 252 189 13.0 15.8 <9.58 <9.58 <9.58 <9.58 <9.58 <9.58 <9.58 <9.58 48.5 <9.58 19150 87.2 <9.58 11/13/19 2.12 <1.00 <1.00 <10.0 48.7 23.3 70.9 2.9 7.15 <0.913 <0.913 <0.913 <0.913 <0.913 <0.913 <0.913 4.36 23.9 <0.913 51.2 41.8 5.76 Notes: VOCs = Volatile Organic Compounds PAHs = Polycyclic Aromatic Hydrocarbons H = Compound concentration reported with possible high bias. LCS recovery for this compound was above established QC limits * = Samples extracted outside of EPA recommended holding time ** = Interim Maximum Allowable Concentration (IMAC) April 2011 Bold indicates exceeds NCAC 2L Ground Water Standard or Interim Maximum Allowable Concentration S:\AAA-Master Projects\SCANA\SCA.008 - Raleigh Long Term Monitoring\November 2019 Semi -Annual Sampling\Tables\Tables November 2019 Table 3 (Page 2 of 3) Hart & Hickman, PC Table 3 Summary of Historical Groundwater Analytical Data - 2010 to Present (BTEX and PAHs Only) Former Raleigh #2 MGP Raleigh, North Carolina H&H Job No. SCA.008 VOCs (EPA Method 8260B) gp_/L PAHs (EPA Method 8270) u2/L Date Xylenes 1- 2- Benzo(a) Benzo(a) Benzo(b) Benzo(g,h,i) Benzo(k) Dibenzo(a,h) Indeno(1,2,3-cd) Well ID Collected Benzene Toluene Ethylbenzene (Total) Methylnaphthalene Methylnaphthalene Acenaphthene Acenaphthylene Anthracene anthracene pyrene fluoranthene perylene fluoranthene Chrysene anthracene Fluoranthene Fluorene pyrene Naphthalene Phenanthrene Pyrene NCAC 2L Standard 1 600 600 500 1* 30 80 200 2,000 0.05 0.005 0.05 200 0.5 5.0 0.005 300 300 0.05 6.0 200 200 3/25/10 5,000 700 41400 1,750 300 360 29.0 12.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 3,900 <10.0 <10.0 9/15/10 2,300 730 2,500 1,300 230 260 32.0 18.0 <5.20 <5.20 <5.20 <5.20 <5.20 <5.20 <5.20 <5.20 <5.20 <5.20 <5.20 3,200 <5.20 <5.20 9/21/11 2,800 750 21200 1,300 260 270 32.0 12.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 3,800 <10.0 <10.0 3/28/12 87 <1.0 140 3.2 18 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 4/16/12 740 120 790 270 99 56.0 15.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 780 <10.0 <10.0 9/11/12 2,210 847 2,180 1,520 384 487 44.7 14.8 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 5.55 <1.90 6,340 2.96 <1.90 3/7/13 120 <1.0 110 4.5 25 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 18 <10.0 <10.0 9/19/13 1,640 543 1,370 940 224 274 29.9 9.58 <1.79 <1.79 <1.79 <1.79 <1.79 <1.79 <1.79 <1.79 <1.79 3.02 <1.79 6,360 1.86 <1.79 3/13/14 163 <1.00 116 8.01 9.94 <1.75 5.03 <1.75 <1.75 <1.75 <1.75 <1.75 <1.75 <1.75 <1.75 <1.75 <1.75 <1.75 <1.75 22.9 <1.75 <1.75 TRC-511 9/5/14 1,080 584 1,120 881 177 222 22.7 8.05 <1.96 <1.96 <1.96 <1.96 <1.96 <1.96 <1.96 <1.96 <1.96 2.89 <1.96 4,000 <1.96 <1.96 3/9/15 741 320 1,090 885 148 168 25.9 5.81 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 3.30 <1.82 29160 2.00 <1.82 10/13/15 <1.0 <1.0 <1.0 <3.0 145 175 16.2 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 2,520 <10.0 <10.0 4/13/16 342 391 382 607 115 142 10.8 6.69 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 2.01 <1.82 1,640 <1.82 <1.82 10/13/16 87.4 9.44 71.9 20.4 6.01 2.13 < 1.92 < 1.92 < 1.92 < 1.92 < 1.92 < 1.92 < 1.92 < 1.92 < 1.92 < 1.92 < 1.92 < 1.92 < 1.92 73.4 < 1.92 < 1.92 4/11/17 56.6 <1.0 25.8 <3.0 11.4 <1.85 3.66 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 37.8 <1.85 <1.85 11/14/17 1,400 13.5 1,270 279 211 <96.2 43.7 3.79 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 4.69 <1.92 2,370 3.42 <1.92 4/19/18 71.1 <1.00 13.2 <3.00 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 11/19/18 1.25 <1.00 <1.00 <3.00 <2.00 <2.00 <2.00 <2.00 <2.00 <2.00 <2.00 <2.00 <2.00 <2.00 <2.00 <2.00 <2.00 <2.00 <2.00 <2.00 <2.00 <2.00 5/21/19 88.6 6.68 95.3 29.5 <9.40 <9.40 <9.40 <9.40 <9.40 <9.40 <9.40 <9.40 <9.40 <9.40 <9.40 <9.40 <9.40 <9.40 <9.40 118 <9.40 <9.40 3/24/10 <1.00 <1.00 <1.00 <3.00 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 9/20/11 <1.00 <1.00 <1.00 <3.00 <11.0 <11.0 <11.0 <11.0 <11.0 <11.0 <11.0 <11.0 <11.0 <11.0 <11.0 <11.0 <11.0 <11.0 <11.0 <11.0 <11.0 <11.0 9/12/12 <1.00 <1.00 <1.00 <3.00 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 9/19/13 <1.00 <1.00 <1.00 <2.00 <1.79 <1.79 <1.79 <1.79 <1.79 <1.79 <1.79 <1.79 <1.79 <1.79 <1.79 <1.79 <1.79 <1.79 <1.79 <1.79 <1.79 <1.79 9/5/14 <1.00 <1.00 <1.00 <2.00 4.28 2.41 <1.96 <1.96 <1.96 <1.96 <1.96 <1.96 <1.96 <1.96 <1.96 <1.96 <1.96 <1.96 <1.96 15.3 <1.80 <1.96 TRC-12 10/13/15 <1.00 <1.00 <1.00 <3.00 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <1.81 <10.0 10/13/16 <1.00 <1.00 <1.00 <3.00 < 1.85 < 1.85 < 1.85 < 1.85 < 1.85 < 1.85 < 1.85 < 1.85 < 1.85 < 1.85 < 1.85 < 1.85 < 1.85 < 1.85 < 1.85 < 1.85 <1.85 < 1.85 11/14/17 <1.00 <1.00 <1.00 <3.00 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 11/19/18 <1.00 <1.00 <1.00 <3.00 <2.01 <2.01 <2.01 <2.01 <2.01 <2.01 <2.01 <2.01 <2.01 <2.01 <2.01 <2.01 <2.01 <2.01 <2.01 <2.01 <2.01 <2.01 11/13/19 <1.00 <1.00 <1.00 <10.0 <0.183 <0.183 <0.183 <0.183 <0.183 <0.183 <0.183 <0.183 <0.183 <0.183 <0.183 <0.183 <0.183 <0.183 <0.183 0.227 <0.183 <0.183 3/25/10 <1.00 <1.00 2.40 2.50 340 <10.0 130 130 14.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 20.0 <10.0 36.0 <1.86 <10.0 9/20/11 <1.00 <1.00 1.70 4.40 200 <11.0 110 120 16H <11.0 <11.0 <11.0 <11.0 <11.0 <11.0 <11.0 <11.0 13.0 <11.0 36.0 <1.87 <11.0 9/12/12 <1.00 <1.00 1.58 <3.00 369 5.20 152 166 18.1 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 5.68 23.0 <1.90 46.4 <1.88 7.72 9/19/13 <1.00 <1.00 1.19 <2.00 230 <1.79 113 128 11.1 <1.79 <1.79 <1.79 <1.79 <1.79 <1.79 <1.79 3.81 13.0 <1.79 25.6 <1.91 6.27 9/5/14 <1.00 <1.00 1.02 <2.00 252 <2.00 113 130 12.3 <2.00 <2.00 <2.00 <2.00 <2.00 <2.00 <2.00 4.04 16.0 <2.00 20.9 <1.92 6.56 TRC-13 10/13/15 <1.00 <1.00 <1.00 <3.00 277 <10.0 137 153 17.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 19.6 <10.0 19.3 <1.93 <10.0 10/13/16 <1.00 <1.00 <1.00 <3.00 33.7 < 1.92 58.7 59.9 3.46 < 1.92 < 1.92 < 1.92 < 1.92 < 1.92 < 1.92 < 1.92 2.38 6.55 < 1.92 2.73 <1.94 3.64 11/14/17 <1.00 <1.00 1.00 <3.00 289 5.18 166 179 12.7 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 4.96 15.8 <1.92 19.9 110 7.08 11/19/18 <1.00 <1.00 <1.00 <3.00 67.3 <1.92 37.3 45.8 3.79 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 <1.92 1.94 4.24 <1.92 2.22 25.2 3.00 11/13/19 <1.00 <1.00 <1.00 <10.0 65.1 <0.880 69.8 65.1 8.06 <0.880 <0.880 <0.880 <0.880 <0.880 <0.880 <0.880 5.03 9.72 <0.880 1.77 28.4 7.66 Notes: VOCs = Volatile Organic Compounds PAHs = Polycyclic Aromatic Hydrocarbons H = Compound concentration reported with possible high bias. LCS recovery for this compound was above established QC limits * = Samples extracted outside of EPA recommended holding time ** = Interim Maximum Allowable Concentration (IMAC) April 2011 Bold indicates exceeds NCAC 2L Ground Water Standard or Interim Maximum Allowable Concentration S:\AAA-Master Projects\SCANA\SCA.008 - Raleigh Long Term Monitoring\November 2019 Semi -Annual Sampling\Tables\Tables November 2019 Table 3 (Page 3 of 3) Hart & Hickman, PC Table 4 Historical MNA Parameters Former Raleigh #2 MGP Raleigh, North Carolina H&H Job No. SCA.008 Dissolved Redox Specific Final Date Alkalinity Ferrous Nitrate Sulfate Manganese Well ID Oxygen Potential pH Conductivity Turbidity Collected (mg/L) Iron (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mV) (PS/cm) (NTU) NCAC 2L Standard NS NS 6.5-8.5 NS NS NS 10 250 NS 0.05 12/11/07 3.89 29.6 6.61 818 340 0.44 0.15 63 31 6.8 3/19/08 0.01** -13.8 6.72 657 NA NA NA NA 2.6 NA 6/11/08 0.37 -29.8 6.87 797 320 2.6 0.23 73 3.55 6.6 9/23/08 0.36 -33.3 6.39 879 NA NA NA NA 2.00 NA 3/25/09 0.94 38.1 6.57 845 290 0.3 0.26 56 4.73 7.7 9/16/09 0.77 -42.4 6.41 709 NA NA NA NA 4.10 NA 3/24/10 0.53 172.3 6.57 918 320 <0.1 0.23 56 6.86 8.6 9/15/10 0.49 -25.2 6.24 680 NA NA NA NA 4.39 NA 9/20/11 0.22 6.7 6.48 666 300 <0.1 0.26 27 8.52 3.4 3/28/12 0.47 64.2 6.50 741 NA NA NA NA 9.62 NA 9/11/12 0.51 -1.4 5.30 566 219 5.26 0.143 26.6 NM 3.96 TRC-2SR 9/19/13 1.1 -15.6 6.29 554 222 3.19 <0.10 21.1 9.87 4.06 9/5/14 0.24 6 6.31 654 227 2.4 0.161 27.8 7.88 3.69 10/13/15 0.23 32.1 6.46 735 281 0.124 <1.00 24.2 21.55 5.98 4/13/16 1.21 -2.4 6.51 738 NA NA NA NA 1.50 NA 10/13/16 2.93 -7.4 6.32 723 270 0.689 < 0.100 24.7 3.72 5.19 4/11/17 0.40 211.2 6.49 652 NA NA NA NA 1.47 NA 11/14/17 2.30 35.4 6.39 525 241 2.85 NA 16.5 1.70 3.94 4/19/18 0.37 -20.9 6.39 627 NA NA NA NA 14.73 NA 11/19/18 0.46 50.8 6.37 723 264 0.386 0.113 21.3 2.58 4.79 5/21/19 1.99 216.1 6.37 685 NA NA NA NA 3.03 NA 11/13/19 0.47 5.4 6.33 578 289 2.23 <0.0500 20.9 1.41 4.53 12/11/07 1.49 39.9 6.43 502 130 <0.20 3.3 43 1.2 0.11 3/19/08 0** 113.1 6.39 412 NA NA NA NA 0.25 NA 6/10/08 0.38 118.0 6.58 470 140 <0.050 3.1 43 1.21 0.47 9/23/08 0.32 44.3 6.11 531 NA NA NA NA 1.29 NA 3/25/09 0.70 147.0 6.26 508 130 <0.1 3.4 43 1.76 0.43 9/16/09 0.82 184.7 6.21 492 NA NA NA NA 0.69 NA 3/24/10 0.58 184.7 6.24 507 140 <0.1 3.7 44 2.48 0.42 9/15/10 0.33 91.0 6.10 490 NA NA NA NA 0.00 NA 9/20/11 0.49 65.3 6.42 504 140 <0.1 3.5 42 0.01 0.39 3/28/12 0.37 138.9 6.24 509 NA NA NA NA 1.04 NA 9/11/12 0.22 42.0 5.05 387 120 <0.100 3.61 34.8 NM 0.47 TRC-2DR 9/19/13 4.2 44.1 6.37 398 117 <0.10 3.53 40.6 1.81 <0.015 9/5/14 0.41 107 6.28 400 118 0.119 3.89 37.2 0.56 0.392 10/13/15 0.35 55 6.11 502 130 <0.100 3.70 37.3 <0.1 0.417 4/13/16 1.21 -2.4 6.51 738 NA NA NA NA 1.00 NA 10/13/16 1.94 52.6 6.27 517 129 < 0.100 3.97 38.8 0.27 0.413 4/ 11 / 17 0.40 181.9 6.31 512 NA NA NA NA 1.00 NA 11/14/17 0.24 25.4 6.38 433 137 <0.100 NA 41.9 0.00 0.373 4/19/18 0.45 -22.3 6.02 446 NA NA NA NA 3.27 NA 11/19/18 0.65 180.7 6.17 537 125 <0.100 3.74 35.2 0.58 0.397 5/21/19 2.22 217.9 6.22 512 NA NA NA NA 3.76 NA 11/13/19 5.04 22.4 6.82 420 157 <0.100 3.99 42.6 <1.00 <0.0100 Notes: NA = Not Analyzed NM = Not Measured ** = Readings were inconsistently lower than expected. Possible equipment malfunction H = sample analyzed beyond the pecified holding time Bold indicates exceeds NCAC 2L Ground Water Standard Table 4 (Page 1 of 4) SMAA-Master Projects\SCANA\SCA.008 - Raleigh Long Term Monitoring\November 2019 Semi -Annual Sampling\Tables\Tables November 2019 Hart & Hickman, PC Table 4 Historical MNA Parameters Former Raleigh #2 MGP Raleigh, North Carolina H&H Job No. SCA.008 Dissolved Redox Specific Final Date Alkalinity Ferrous Nitrate Sulfate Manganese Well ID Oxygen Potential pH Conductivity Turbidity Collected (mg/L) Iron (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mV) (PS/cm) (NTU) NCAC 2L Standard NS NS 6.5-8.5 NS NS NS 10 250 NS 0.05 12/11/07 1.91 41.1 5.96 1,559 110 7.9 <0.10 840 150 32 3/19/08 0** 100.2 5.67 986 NA NA NA NA 0.70 NA 6/11/08 0.25 193.2 5.78 316 83 1.0 2.0 350 1.58 20 9/23/08 0.16 27.7 5.52 1,327 NA NA NA NA 2.93 NA 3/26/09 0.59 102.4 5.56 1,049 95 3.8 1.8 410 2.25 20 9/16/09 1.25 89.4 5.66 1,088 NA NA NA NA 1.09 NA 3/25/10 0.42 116.2 5.44 233 50 1.0 0.40 160 5.32 3.8 9/15/10 0.30 59.7 5.63 925 NA NA NA NA 0.82 NA 9/21/11 0.23 84.2 5.44 1,678 99 3.6 23 910 0.01 32 3/28/12 0.47 94.2 5.50 892 NA NA NA NA 3.52 NA 9/11/12 0.80 21.7 4.25 603 49 0.3 2.99 172 NM 8.79 TRC-4 9/19/13 0.25 -10.7 6.05 625 142 0.83 <0.10 99.6 3.91 5.52 9/5/14 0.22 12.5 6.10 630 160 0.913 <0.10 70.2 2.47 5.94 10/13/15 0.12 -48.1 6.70 1305 434 2.56 <0.100 178 7.53 3.14 4/13/16 1.12 -54.1 6.75 810 NA NA NA NA 4.22 NA 10/13/16 4.88 -89.4 6.42 1156 410 5.75 < 0.100 < 1.00 2.66 6.48 4/11/17 0.11 -81.8 6.34 977 NA NA NA NA 3.77 NA 11/14/17 0.07 14.0 5.86 466 128 2.01 NA 75.9 2.78 4.42 4/19/18 0.32 -18.4 6.19 1016 NA NA NA NA 6.80 NA 11/19/18 0.38 -67.5 6.02 730 145 1.94 <0.100 111 3.23 4.69 5/21/19 1.85 166.4 6.16 888 NA NA NA NA 4.36 NA 11/13/19 1.11 -135.0 5.95 433 140 1.36 <0.0500 54.7 <1.00 3.91 12/11/2007 2.51 4.4 5.58 549 200 3.5 0.13 11 500 7.8 3/19/08 0** -135.3 6.56 460 NA NA NA NA 15 NA 6/10/08 0.28 -92.6 6.83 546 210 4.7 0.074 17 7.51 8.1 9/23/08 0.33 -78.5 6.35 581 NA NA NA NA 1.97 NA 3/26/09 0.95 -117.2 6.46 562 200 2.6 <0.20 5.0 2.28 8.3 9/16/09 0.77 -121.9 6.43 540 NA NA NA NA 2.28 NA 3/25/10 0.24 -76.3 6.45 462 210 4.6 <0.20 3.3 7.07 7.8 9/15/10 0.34 -97.9 6.37 560 NA NA NA NA 2.07 NA 9/21/11 0.24 -19.2 6.39 567 250 3.8 0.13 <1.0 0.25 7.3 3/28/12 0.44 -67.4 6.40 565 NA NA NA NA 1.57 NA 9/11/12 0.20 -83.5 5.39 433 177 4.81 0.186 8.7 NM 7.28 TRC-4D 9/19/13 0.25 -75.9 6.33 442 193 5.76 <0.10 <2.00 1.71 6.61 9/5/14 0.21 -74.8 6.56 494 200 0.303 <0.10 <1.00 9.07 6.56 10/13/15 0.65 -14.0 6.51 581 222 5.97 <0.100 <1.00 0.27 6.87 4/13/16 0.79 -56.4 6.85 583 NA NA NA NA 4.42 NA 10/13/16 2.17 -52.0 6.40 592 221 0.724 < 0.100 170 1.15 5.91 4/11/17 0.30 -44.5 6.48 601 NA NA NA NA 0.52 NA 11/14/17 0.01 0.2 6.53 495 259 7.01 NA <2.00 0.74 6.16 4/19/18 0.29 -24.1 7.37 489 NA NA NA NA 4.56 NA 11/19/18 0.36 -66.2 6.50 603 207 3.17 <0.100 <1.00 3.89 6.14 5/21/19 1.99 151.5 6.51 582 NA NA NA NA 8.18 NA 11/13/19 0.57 -167.1 9.36 215 120 <0.100 <0.0500 2.31 2.04 0.188 Notes: NA = Not Analyzed NM = Not Measured ** = Readings were inconsistently lower than expected. Possible equipment malfunction H = sample analyzed beyond the pecified holding time Bold indicates exceeds NCAC 2L Ground Water Standard Table 4 (Page 2 of 4) SMAA-Master Projects\SCANA\SCA.008 - Raleigh Long Term Monitoring\November 2019 Semi -Annual Sampling\Tables\Tables November 2019 Hart & Hickman, PC Table 4 Historical MNA Parameters Former Raleigh #2 MGP Raleigh, North Carolina H&H Job No. SCA.008 Dissolved Redox Specific Final Date Alkalinity Ferrous Nitrate Sulfate Manganese Well ID Oxygen Potential pH Conductivity Turbidity Collected (mg/L) Iron (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mV) (PS/cm) (NTU) NCAC 2L Standard NS NS 6.5-8.5 NS NS NS 10 250 NS 0.05 12/11/07 1.78 -23.6 7.14 886 370 4.0 0.063J 9.7 606 9.7 3/19/08 0** -47.5 6.77 980 NA NA NA NA 1.8 NA 6/11/08 0.26 -78.6 7.12 643 330 6.1 0.066 17 3.88 8.4 9/23/08 0.20 -78.5 6.59 718 NA NA NA NA 2.41 NA 3/25/09 0.79 -49.8 6.67 987 480 0.6 <0.20 60 8.37 1.6 9/16/09 0.57 -126.4 6.75 696 NA NA NA NA 1.72 NA 3/25/10 0.43 -111.2 6.77 591 290 2.5 <0.20 17 2.97 6.6 9/15/10 0.19 -123.8 6.58 566 NA NA NA NA 0.39 NA 9/21/11 0.18 -56.6 6.63 685 360 3.4 0.12 14 1.52 6.8 3/28/12 0.38 -99.8 6.81 720 NA NA NA NA 5.43 NA TRC-5R 9/11/12 0.17 -127.7 5.73 502 249 4.23 <0.100 <2.00 NM 4.42 9/19/13 0.21 -138.7 6.73 454 229 4.75 <0.10 4.44 4.71 3.81 9/5/14 0.29 -135.7 6.91 510 213 7.01 <0.10 7.71 6.03 3.94 10/13/15 0.18 -41.7 6.76 661 241 6.25 <0.100 8.61 6.92 4.44 4/13/16 0.74 -93.6 6.99 666 NA NA NA NA 6.73 NA 10/13/16 3.30 -64.4 6.42 970 425 8.92 < 0.100 69.1 2.89 1.99 4/11/17 0.20 -69.2 6.87 1031 NA NA NA NA 19.72 NA 11/14/17 0.08 83.2 6.81 791 417 5.29 NA 12.0 0.24 2.44 4/19/18 0.26 -38.3 6.73 833 NA NA NA NA 16.28 NA 11/19/18 0.55 -7.0 6.70 853 217 1.41 <0.100 55.4 5.75 0.763 5/21/19 2.68 133.7 6.91 908 NA NA NA NA 10.35 NA 12/11/07 2.87 50.4 4.59 218 13 0.62 7.5 40 >1,100 1.4 6/10/08 0.78 199.3 5.46 217 26 <0.050 3.3 39 3.03 0.64 3/25/09 1.26 242.2 5.12 211 15 <0.1 2.6 43 10.8 0.79 3/24/10 1.28 248.1 5.05 258 200 <0.1 5.9 39 3.02 1.0 9/20/11 0.30 154.2 5.34 276 34 <0.1 5.8 45 3.89 1.0 9/11/12 0.20 46.6 4.33 213 28.9 <0.100 4.97 33.4 NM 1.16 TRC-9 9/19/13 0.27 103.5 5.26 239 34.7 <0.10 11.3 39.1 12.15 0.956 9/5/14 0.21 101.5 5.58 290 36.5 <0.10 11.8 32.2 8.45 1.12 10/13/15 0.18 70.2 5.28 439 32.6 <0.100 8.05 28.3 10.17 1.36 10/13/16 1.14 119.1 5.44 357 36.3 < 0.100 7.24 35.2 12.6 0.834 11/14/17 0.18 77.60 5.64 232 50.6 <0.100 NA 37.6 9.43 7.10 11/19/18 0.47 122.1 5.79 279 <10.0 <0.100 3.95H 35.8 9.70 0.526 11/13/19 0.40 88.3 5.83 254 72.7 <0.100 2.79 39.6 4.02 0.560 Notes: NA = Not Analyzed NM = Not Measured * = Readings were inconsistently lower than expected. Possible equipment malfunction H = sample analyzed beyond the pecified holding time Bold indicates exceeds NCAC 2L Ground Water Standard Table 4 (Page 3 of 4) SMAA-Master Projects\SCANA\SCA.008 - Raleigh Long Term Monitoring\November 2019 Semi -Annual Sampling\Tables\Tables November 2019 Hart & Hickman, PC Table 4 Historical MNA Parameters Former Raleigh #2 MGP Raleigh, North Carolina H&H Job No. SCA.008 Dissolved Redox Specific Final Date Alkalinity Ferrous Nitrate Sulfate Manganese Well ID Oxygen Potential pH Conductivity Turbidity Collected (mg/L) Iron (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mV) (PS/cm) (NTU) NCAC 2L Standard NS NS 6.5-8.5 NS NS NS 10 250 NS 0.05 12/11/07 2.53 48.3 5.84 720 94 0.22 5.6 170 65 0.15 6/10/08 0.38 94.7 6.25 626 100 <0.050 4.7 170 4.06 0.24 3/25/09 1.65 176.4 6.08 940 150 <0.1 8.3 230 2.15 0.42 3/24/10 0.85 208.3 5.84 742 120 <0.1 5.8 200 3.12 0.46 9/20/11 0.46 103.4 6.12 764 160 <0.1 13 190 2.01 0.74 9/12/12 0.26 -18.1 5.02 773 158 <0.100 21.7 216 NM 1.22 TRC-12 9/19/13 0.72 18.1 5.83 609 133 <0.10 9.77 181 2.05 0.782 9/5/14 0.2 70.1 5.97 748 151 0.132 7.64 192 7.68 0.814 10/13/15 0.18 27.2 5.94 987 218 <0.100 11.9 213 6.13 1.001 10/13/16 1.43 83.9 5.81 991 247 < 0.100 17.1 388 0.71 0.628 11/14/17 0.25 42.4 6.15 799 209 < 0.100 NA 202 0.54 0.544 11/19/18 0.71 151.9 6.22 1014 246 <0.100 15AH 172 0.84 0.523 11/13/19 0.59 69.0 6.03 804 233 <0.100 7.02 200 <1.00 0.549 12/11/07 3.40 24.2 6.74 644 150 1.8 0.043J 32 >1,100 6.2 6/10/08 0.17 -48.1 6.77 618 150 2.4 <0.020 30 7.50 6.5 3/25/09 0.87 -57.4 6.29 619 150 1.4 <0.20 29 5.89 6.9 3/25/10 1.02 -44.9 6.31 600 160 1.4 <0.20 29 3.18 7.4 9/20/11 0.22 16.2 6.64 618 170 1.3 <0.10 31 5.37 7.5 9/12/12 0.25 -76.7 5.37 458 129 2.37 0.17 24.4 NM 7.23 TRC-13 9/19/13 0.22 -95.0 6.28 508 135 1.88 <0.10 25.4 9.61 7.58 9/5/14 0.23 -6.8 6.33 558 131 2.58 0.768 23.7 5.52 7.24 10/13/15 0.18 -0.7 6.37 614 160 2.07 <0.100 26.2 0.57 8.63 10/13/16 2.07 -33.9 6.28 621 148 1.39 <0.100 26.6 11.76 6.81 11/14/17 1.25 11.5 6.53 514 167 2.72 NA 27.3 27.43 0.573 11/19/18 0.48 -25.8 6.42 602 146 1.97 <0.100 28.0 7.25 7.22 11/13/19 0.58 -27.6 6.38 509 169 1.56 <0.0500 30.1 6.41 7.45 Notes: NA = Not Analyzed NM = Not Measured * = Readings were inconsistently lower than expected. Possible equipment malfunction H = sample analyzed beyond the pecified holding time Bold indicates exceeds NCAC 2L Ground Water Standard Table 4 (Page 4 of 4) S:\AAA-Master Projects\SCANA\SCA.008 - Raleigh Long Term Monitoring\November 2019 Semi -Annual Sampling\Tables\Tables November 2019 Hart & Hickman, PC Figures 14 hart hickman SMARTER ENVIRONMENTAL SOLUTIONS lit J, WT Ilj j fry/ 1 {r. SITE �, -.�� +l ' �R � ���_ �-� � � ram--. � :.a• Ll 111LLLC q 4 + k q: 3 iVU : RA 400 wi— `��(' � \.` �.• I'�` fir � � :�' I r � ��• � � � � I � �� b. - 1Towe # - :�= - __ aso ■ 1i�� •, �Iy�l� APPROXIMATE N 0 2000 4000 SCALE IN FEET U.S.G.S. QUADRANGLE MAP 7.5 MINUTE SERIES (TOPOGRAPHIC) RALEIGH WEST, NORTH CAROLINA, 2002 LEGEND SHALLOW MONITORING WELL QY INTERMEDIATE MONITORING WELL MONITORING WELL ASSOCIATED WITH AN ADJACENT PROPERTY ABANDONED MONITORING WELL — — — PROPERTY LINE SHALLOW GROUNDWATER 2H2 POTENTIOMETRIC CONTOURS (287.71) GROUNDWATER ELEVATION (FT) INFERRED GROUNDWATER FLOW No DIRECTION NOTES: 1. MONITORING WELLS GAUGED ON 11/13/19. 2. TRC-2DR AND TRC-4DR NOT USED IN CONTOURING. 3. NM = NOT MEASURED F W N W 'r APPROXIMATE x 0 80 160 mmm.— MONOMER E+ SCALE IN FEET O w TRC-12 (269.69) CTMW-10 Im SURFICIAL AQUIFER POTENTIOMETRIC MAP (NOVEMBER 2019) FORMER RALEIGH #2 MGP SITE RALEIGH, NORTH CAROLINA hart hickman SMARTER ENVIRONMENTAL SOLUTIONS DATE: 12-6-19 JOB NO: SCA.008 3921 Sunset Ridge Road, Suite 301 Raleigh, North Carolina 27607 919-847-4241(p) 919-847-4261(f) License # C-1269 / #C-245 Geology REVISION NO. 0 FIGURE NO. 2 TRC-12 BENZENE <1.00 1-METHYLNAPHTHALENE <0.183 2-METHYLNAPHTHALENE <0.183 NAPHTHALENE 0.227 ACENAPHTHENE <0.183 W. J. HINES SR. INEZ R. HINES EXISTING BUILDING' / k TRC-2DR BENZENE <1.00 1-METHYLNAPHTHALENE <0.183 2-METHYLNAPHTHALENE <0.183 NAPHTHALENE <0.183 ACENAPHTHENE <0.183 TRC-9 }'40 J EDG GR GRAVEL ASPHALT 1 TRC-1 TI TRC-2SR BENZENE <1.00 1-METHYLNAPHTHALENE 1.14 2-METHYLNAPHTHALENE 0.589 NAPHTHALENE 3.40 ACENAPHTHENE 1.35 TRC-12 GRAVEL \♦ \4 EDGE OF ��PAVEMENT� I I I I I I I I I I I I I I FO/ I I METAL BUILDIN ASPHALT TRC-6 I I I TRC-6D I I LEGEND S SHALLOW MONITORING WELL 0&' Q INTERMEDIATE MONITORING WELL MONITORING WELL ASSOCIATED WITH AN ADJACENT PROPERTY \� o� � ABANDONED MONITORING WELL 48D.I. — — — PROPERTY LINE " P. �f SQUARE f�LVERT SAMPLE ID—\ T MW-2 RIPRAP RI TRC-5R NS II 11 I GRAVEL 24 RCP CTMW-11L LT VASPH-2DR C TRC-4D TRC TRC-2SR CTMW-9 CTMW-10 +W—\ TRC-7 MW-1 � GRAVEL \♦ \+ TRC-5R TRC-5 \ X— x— X— X--_ X--_ CTMW-7 _ — —X-- I CTMW-5 I I I TRC-13 TRC-12 GRAVEL \♦ \4 EDGE OF ��PAVEMENT� I I I I I I I I I I I I I I FO/ I I METAL BUILDIN ASPHALT TRC-6 I I I TRC-6D I I LEGEND S SHALLOW MONITORING WELL 0&' Q INTERMEDIATE MONITORING WELL MONITORING WELL ASSOCIATED WITH AN ADJACENT PROPERTY \� o� � ABANDONED MONITORING WELL 48D.I. — — — PROPERTY LINE " P. �f SQUARE f�LVERT SAMPLE ID—\ T MW-2 RIPRAP RI TRC-5R NS II 11 I GRAVEL 24 RCP CTMW-11L LT VASPH-2DR C TRC-4D TRC TRC-2SR CTMW-9 CTMW-10 +W—\ TRC-7 MW-1 � GRAVEL \♦ \+ TRC-5R TRC-5 \ X— x— X— X--_ X--_ CTMW-7 _ — —X-- I CTMW-5 I I I TRC-13 BENZENE <1.00 ASPHALT SHE TMW-3 LU ICTMW-1 En / CTMW—DU CONCRETE CTMW-4 CTMW-6 / � I FORMER U .1 /FAI" CLANCY PROPERTIES, LLC I WEST CAB US STREET TRC-4D BENZENE 2.12 1-METHYLNAPHTHALENE 48.7 2-METHYLNAPHTHALENE 23.3 NAPHTHALENE 51.2 ACENAPHTHENE 70.9 CTMW-8— TRC-4 BENZENE 730 1-METHYLNAPHTHALENE 2-METHYLNAPHTHALENE 231 220 NAPHTHALENE 1,510 ACENAPHTHENE <8.80 CONSTITUENT' TRC-4 BENZENE 730 1-METHYLNAPHTHALENE 231 2-METHYLNAPHTHALENE 220 NAPHTHALENE 1,510 ACENAPHTHENE <8.80 `CONCENTRA' (µ9/L) NOTES: 1. GROUNDWATER SAMPLES COLLECTED NOVEMBER 2019. 2. <21- = ALL CONSTITUENTS BELOW 2L STANDARDS. 3. NS = NOT SAMPLED F Gc7 N E-. 'r APPROXIMATE x 0 80 160 O SCALE IN FEET SITE MAP AND GROUNDWATER CONSTITUENTS ABOVE 2L STANDARDS (NOVEMBER 2019) FORMER RALEIGH #2 MGP SITE RALEIGH, NORTH CAROLINA 1 h i c k m a n Raleigh, g onset Ridge Road, Suite 301 hart Rai h Noah Carolina 27607 . 919-847-4241(p) 919-847-4261(f) SMARTER ENVIRONMENTAL SOLUTIONS License # C-1269 / #C-245 Geology DATE: 12-6-19 REVISION NO. 0 JOB NO: SCA.008 FIGURE NO. 3 Appendix A Groundwater Sampling Forms 14 hart hickman SMARTER ENVIRONMENTAL SOLUTIONS hart -v hickman SMARTER ENVIRONMENTAL SOLUTIONS LOW -FLOW GROUNDWATER SAMPLING RECORD Job No: SCA-008 Well ID: TRC-2SR Well Location: Raleigh, NC Facility Name: SCANA Former MGP Date: 11/13/19 Top of Casing Elevation (ft msl): 283.02 Casing Material: PVC Volume of Water Per Well Volume: Total Well Depth (ft): 15.00 Depth to Water (ft): 9.83 Well Diameter: 2-inch Sampling Personnel: D. McCauley J. Henson Screen Interval (ft bgs): 5 - Type of Pump: Peristaltic Tubing Material: Polyethylene Pump/Tubing set at: Weather Conditions: Sunny, 30s degrees F NOTES: Stabilization Criteria Primary: Secondary: pH +/- 0.1 unit DO +/- 0.3 mg/1 S. Cond. +/- 5% ORP +/- 10 mV 15 13 ft. GROUNDWATER SAMPLING PARAMETERS Water Volume Pumping DO Temp. S. Cond. pH ORP Turbidity Time Level Pumped Rate m /I (OC) S/cm (SU) (mV) (NTU 12:10 12.37 1.26 14.1 557.0 6.39 39.4 37.92 12:20 12.38 0.86 15.3 581.0 6.35 34.8 32.75 12:25 12.28 0.60 15.8 591.0 6.33 34.2 1.22 12:30 12.39 0.63 15.4 583.0 6.35 9.0 2.15 12:35 12.41 0.47 15.1 578.0 6.33 5.4 1.41 Other Sample Parameters: Sampled at: 12:35 Sample Delivered to: Eurofins TestAmerica Parameters taken with: YSI ProPlus, MicroTPI turbidimeter by Fedex at Field Filtration: ®Yes o No If yes, which sample parameters were field filtered: Sample Parameter Containers (Types, Number of Containers, Preservatives): BTEX 8260, PAHs 8270, Alkalinity, Ferrous Iron, Nitrate, Sulfate Manganese File: S:\AAA-Master Templates\Forms-Groundwater\Low Flow Groundwater Sampling Record Date:11 /5/2018 hart -v hickman SMARTER ENVIRONMENTAL SOLUTIONS LOW -FLOW GROUNDWATER SAMPLING RECORD Job No: SCA-008 Well ID: TRC-2DR Well Location: Raleigh, NC Facility Name: SCANA Former MGP Date: 11/13/19 Top of Casing Elevation (ft msl): 283.28 Casing Material: PVC Volume of Water Per Well Volume: Total Well Depth (ft): 60.50 Depth to Water (ft): 5.89 Well Diameter: 2-inch Sampling Personnel: D. McCauley J. Henson Screen Interval (ft bgs): 57.5 - Type of Pump: Peristaltic Tubing Material: Polyethylene Pump/Tubing set at: Weather Conditions: Sunny, 30s degrees F NOTES: Stabilization Criteria Primary: Secondary: pH +/- 0.1 unit DO +/- 0.3 mg/1 S. Cond. +/- 5% ORP +/- 10 mV 62.5 60 ft. GROUNDWATER SAMPLING PARAMETERS Water Volume Pumping DO Temp. S. Cond. pH ORP Turbidity Time Level Pumped Rate m /I (OC) S/cm (SU) (mV) (NTU 11:10 11.31 5.04 13.9 412.0 6.88 7.2 0.00 11:15 11.31 5.14 13.9 413.0 6.86 13.1 0.00 11:20 11.32 4.94 14.5 417.0 6.84 19.0 0.00 11:25 11.31 5.04 14.6 420.0 6.82 22.4 0.00 Other Sample Parameters: Sampled at: 11:25 Sample Delivered to: Eurofins TestAmerica Parameters taken with: YSI ProPlus, MicroTPI turbidimeter by Fedex at Field Filtration: ®Yes o No If yes, which sample parameters were field filtered: Sample Parameter Containers (Types, Number of Containers, Preservatives): BTEX 8260, PAHs 8270, Alkalinity, Ferrous Iron, Nitrate, Sulfate Manganese File: S:\AAA-Master Templates\Forms-Groundwater\Low Flow Groundwater Sampling Record Date:11 /5/2018 hart -v hickman SMARTER ENVIRONMENTAL SOLUTIONS LOW -FLOW GROUNDWATER SAMPLING RECORD Job No: SCA-008 Well ID: TRC-4 Well Location: Raleigh, NC Facility Name: SCANA Former MGP Date: 11/13/19 Top of Casing Elevation (ft msl): 286.50 Casing Material: PVC Volume of Water Per Well Volume: Total Well Depth (ft): 15.00 Depth to Water (ft): 8.72 Well Diameter: 2-inch Sampling Personnel: D. McCauley J. Henson Screen Interval (ft bgs): 5 - Type of Pump: Peristaltic Tubing Material: Polyethylene Pump/Tubing set at: Weather Conditions: Sunny, 30s degrees F NOTES: Stabilization Criteria Primary: Secondary: pH +/- 0.1 unit DO +/- 0.3 mg/1 S. Cond. +/- 5% ORP +/- 10 mV 15 13 ft. GROUNDWATER SAMPLING PARAMETERS Water Volume Pumping DO Temp. S. Cond. pH ORP Turbidity Time Level Pumped Rate m /I (OC) S/cm (SU) (mV) (NTU 08:15 8.84 3.95 14.4 414.0 5.92 -126.7 1.62 08:20 8.85 1.54 15.2 421.0 5.91 -133.5 0.92 08:25 8.85 1.25 15.5 425.0 5.90 -133.7 0.64 08:30 8.85 0.97 16.3 432.0 5.81 -134.5 0.81 08:35 8.86 1.11 16.4 433.0 5.95 -135.0 0.44 Other Sample Parameters: Sampled at: 08:35 Sample Delivered to: Eurofins TestAmerica Parameters taken with: YSI ProPlus, MicroTPI turbidimeter by Fedex at Field Filtration: ®Yes o No If yes, which sample parameters were field filtered: Sample Parameter Containers (Types, Number of Containers, Preservatives): BTEX 8260, PAHs 8270, Alkalinity, Ferrous Iron, Nitrate, Sulfate Manganese File: S:\AAA-Master Templates\Forms-Groundwater\Low Flow Groundwater Sampling Record Date:11 /5/2018 hart -v hickman SMARTER ENVIRONMENTAL SOLUTIONS LOW -FLOW GROUNDWATER SAMPLING RECORD Job No: SCA-008 Well ID: TRC-4D Well Location: Raleigh, NC Facility Name: SCANA Former MGP Date: 11/13/19 Top of Casing Elevation (ft msl): 285.14 Casing Material: PVC Volume of Water Per Well Volume: Total Well Depth (ft): 50.00 Depth to Water (ft): 8.47 Well Diameter: 2-inch Sampling Personnel: D. McCauley J. Henson Screen Interval (ft bgs): 35 - Type of Pump: Peristaltic Tubing Material: Polyethylene Pump/Tubing set at: Weather Conditions: Sunny, 30s degrees F NOTES: Stabilization Criteria Primary: Secondary: pH +/- 0.1 unit DO +/- 0.3 mg/1 S. Cond. +/- 5% ORP +/- 10 mV 50 48 ft. GROUNDWATER SAMPLING PARAMETERS Water Volume Pumping DO Temp. S. Cond. pH ORP Turbidity Time Level Pumped Rate m /I (OC) S/cm (SU) (mV) (NTU 09:10 9.29 2.00 12.2 218.0 9.52 -166.8 5.57 09:15 9.31 0.69 12.9 219.0 9.34 -168.2 3.71 09:20 9.31 0.55 13.1 215.0 9.33 -176.2 1.98 09:25 9.33 0.57 12.9 215.0 9.36 -167.1 2.04 Other Sample Parameters: Sampled at: 09:25 Sample Delivered to: Eurofins TestAmerica Parameters taken with: YSI ProPlus, MicroTPI turbidimeter by Fedex at Field Filtration: ®Yes o No If yes, which sample parameters were field filtered: Sample Parameter Containers (Types, Number of Containers, Preservatives): BTEX 8260, PAHs 8270, Alkalinity, Ferrous Iron, Nitrate, Sulfate Manganese File: S:\AAA-Master Templates\Forms-Groundwater\Low Flow Groundwater Sampling Record Date:11 /5/2018 hart -v hickman SMARTER ENVIRONMENTAL SOLUTIONS LOW -FLOW GROUNDWATER SAMPLING RECORD Job No: SCA-008 Well ID: TRC-9 Well Location: Raleigh, NC Facility Name: SCANA Former MGP Date: 11/13/19 Top of Casing Elevation (ft msl): 295.47 Casing Material: PVC Volume of Water Per Well Volume: Total Well Depth (ft): 15.00 Depth to Water (ft): Well Diameter: 2-inch Sampling Personnel: D. McCauley J. Henson Screen Interval (ft bgs): 5 - Type of Pump: Peristaltic Tubing Material: Polyethylene Pump/Tubing set at: Weather Conditions: Sunny, 30s degrees F NOTES: Stabilization Criteria Primary: Secondary: pH +/- 0.1 unit DO +/- 0.3 mg/1 S. Cond. +/- 5% ORP +/- 10 mV 15 13 ft. GROUNDWATER SAMPLING PARAMETERS Water Volume Pumping DO Temp. S. Cond. pH ORP Turbidity Time Level Pumped Rate m /I (OC) S/cm (SU) (mV) (NTU 14:40 6.81 0.82 15.7 264.0 5.92 66.2 5.89 14:45 6.82 0.57 16.6 266.0 5.86 78.8 7.67 14:50 6.82 0.51 17.0 258.0 5.84 84.2 6.70 14:55 6.82 0.40 17.1 254.0 5.83 88.3 4.02 Other Sample Parameters: Sampled at: 14:55 Sample Delivered to: Eurofins TestAmerica Parameters taken with: YSI ProPlus, MicroTPI turbidimeter by Fedex at Field Filtration: ®Yes O No If yes, which sample parameters were field filtered: Sample Parameter Containers (Types, Number of Containers, Preservatives): Alkalinity, Ferrous Iron, Nitrate, Sulfate, Manganese File: S:\AAA-Master Templates\Forms-Groundwater\Low Flow Groundwater Sampling Record Date:11 /5/2018 hart -v hickman SMARTER ENVIRONMENTAL SOLUTIONS LOW -FLOW GROUNDWATER SAMPLING RECORD Job No: SCA-008 Well ID: TRC-12 Well Location: Raleigh, NC Facility Name: SCANA Former MGP Date: 11/13/19 Top of Casing Elevation (ft msl): 277.59 Casing Material: PVC Volume of Water Per Well Volume: Total Well Depth (ft): 20.00 Depth to Water (ft): 7.90 Well Diameter: 2-inch Sampling Personnel: D. McCauley J. Henson Screen Interval (ft bgs): 10 - Type of Pump: Peristaltic Tubing Material: Polyethylene Pump/Tubing set at: Weather Conditions: Sunny, 30s degrees F NOTES: Stabilization Criteria Primary: Secondary: pH +/- 0.1 unit DO +/- 0.3 mg/1 S. Cond. +/- 5% ORP +/- 10 mV 20 18 ft. GROUNDWATER SAMPLING PARAMETERS Water Volume Pumping DO Temp. S. Cond. pH ORP Turbidity Time Level Pumped Rate m /I (OC) S/cm (SU) (mV) (NTU 13:30 13.48 1.50 15.9 796.0 6.08 64.9 1.74 13:35 13.49 0.95 16.1 802.0 6.05 66.0 0.25 13:40 13.51 0.84 16.1 805.0 6.04 67.7 0.00 13:45 13.52 0.59 16.1 804.0 6.03 69.0 0.00 Other Sample Parameters: Sampled at: 13:45 Sample Delivered to: Eurofins TestAmerica Parameters taken with: YSI ProPlus, MicroTPI turbidimeter by Fedex at Field Filtration: ®Yes o No If yes, which sample parameters were field filtered: Sample Parameter Containers (Types, Number of Containers, Preservatives): BTEX 8260, PAHs 8270, Alkalinity, Ferrous Iron, Nitrate, Sulfate Manganese File: S:\AAA-Master Templates\Forms-Groundwater\Low Flow Groundwater Sampling Record Date:11 /5/2018 hart -v hickman SMARTER ENVIRONMENTAL SOLUTIONS LOW -FLOW GROUNDWATER SAMPLING RECORD Job No: SCA-008 Well ID: TRC-13 Well Location: Raleigh, NC Facility Name: SCANA Former MGP Date: Top of Casing Elevation (ft msl): 290.75 Casing Material: PVC Volume of Water Per Well Volume: Total Well Depth (ft): 15.00 Depth to Water (ft): Well Diameter: 2-inch Sampling Personnel: D. McCauley J. Henson Screen Interval (ft bgs): 5 - Type of Pump: Peristaltic Tubing Material: Polyethylene Pump/Tubing set at: Weather Conditions: Sunny, 30s degrees F NOTES: Stabilization Criteria Primary: Secondary: pH +/- 0.1 unit DO +/- 0.3 mg/1 S. Cond. +/- 5% ORP +/- 10 mV 15 13 ft. GROUNDWATER SAMPLING PARAMETERS Water Volume Pumping DO Temp. S. Cond. pH ORP Turbidity Time Level Pumped Rate m /I (OC) S/cm (SU) (mV) (NTU 10:05 10.25 0.97 16.5 501.0 6.54 -45.9 5.94 10:10 10.26 0.77 17.0 507.0 6.43 -28.0 8.88 10:15 10.26 0.62 17.0 519.0 6.40 -22.2 7.56 10:20 10.27 0.58 16.7 509.0 6.38 -27.6 6.41 Other Sample Parameters: Sampled at: 10:20 Sample Delivered to: Eurofins TestAmerica Parameters taken with: YSI ProPlus, MicroTPI turbidimeter by Fedex at Field Filtration: ®Yes o No If yes, which sample parameters were field filtered: Sample Parameter Containers (Types, Number of Containers, Preservatives): BTEX 8260, PAHs 8270, Alkalinity, Ferrous Iron, Nitrate, Sulfate Manganese File: S:\AAA-Master Templates\Forms-Groundwater\Low Flow Groundwater Sampling Record Date:11 /5/2018 Appendix B Laboratory Analytical Report 14 hart hickman SMARTER ENVIRONMENTAL SOLUTIONS urofins � Environment Testing TestAmerica ANALYTICAL REPORT C Eurofins TestAmerica, Pensacola 3355 McLemore Drive Pensacola, FL 32514 Tel: (850)474-1001 Laboratory Job ID: 400-179567-1 Laboratory Sample Delivery Group: SCA-008 Client Project/Site: Former Raleigh #MGP Site Hart & Hickman, PC 3921 Sunset Ridge Rd Suite 301 Raleigh, North Carolina 27607 Attn: Patrick Stevens 4_4_9� 4% � Authorized for release by: 1112912019 929:58 AM Ken Hayes, Project Manager II (615)301-5035 ken.hayes@testamericainc.com The test results in this report meet all 2003 NELAC and 2009 TNI requirements for accredited parameters, exceptions are noted in this report. This report may not be reproduced except in full, and with written approval from the laboratory. For questions please contact the Project Manager at the e-mail address or telephone number listed on this page. This report has been electronically signed and authorized by the signatory. Electronic signature is intended to be the legally binding equivalent of a traditionally handwritten signature. Results relate only to the items tested and the sample(s) as received by the laboratory. Client: Hart & Hickman, PC Project/Site: Former Raleigh #MGP Site Table of Contents Laboratory Job ID: 400-179567-1 SDG: SCA-008 Cover Page .............................................. 1 Table of Contents ......................................... 2 Case Narrative ........................................... 3 L Detection Summary ........................................ 4 Sample Summary ......................................... 7 Client Sample Results ...................................... 8 Definitions ........................................ 20 Surrogate Summary ....................................... 21 QC Association ........................................... 22 C QC Sample Results ........................................ 25 Chronicle................................................ 29 Method Summary ......................................... 34 Certification Summary ...................................... 35 Chain of Custody .......................................... 36 Receipt Checklists ......................................... 39 Eurofins TestAmerica, Pensacola Page 2 of 40 11 /29/2019 Case Narrative Client: Hart & Hickman, PC Project/Site: Former Raleigh #MGP Site Job ID: 400-179567-1 Laboratory: Eurofins TestAmerica, Pensacola Narrative Job Narrative 400-179567-1 Comments No additional comments Job ID: 400-179567-1 SDG: SCA-008 Receipt The samples were received on 11/14/2019 1:09 PM; the samples arrived in good condition, properly preserved and, where required, on ice. The temperatures of the 2 coolers at receipt time were 1.10 C and 1.10 C. GC/MS VOA Method 8260B: The following sample was diluted to bring the concentration of target analytes within the calibration range: TRC-4 (400-179567-3). Elevated reporting limits (RLs) are provided. No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. GC/MS Semi VOA Method 8270E LL: The following sample was diluted due to an abundance of target analytes: TRC-4 (400-179567-3). As such, surrogate recoveries are below the calibration range or are not reported, and elevated reporting limits (RLs) are provided. Method 8270E LL: The following samples were diluted to bring the concentration of target analytes within the calibration range: TRC-4D (400-179567-4) and TRC-13 (400-179567-7). Elevated reporting limits (RLs) are provided. Method 8270E LL: The continuing calibration verification (CCV) analyzed in 180-299702 was outside the method criteria for the following analyte(s): 2,4,6-Tribromophenol (Surr). As indicated in the reference method, sample analysis may proceed; however, any detection for the affected analyte(s) is considered estimated. No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. Metals No analytical or quality issues were noted, other than those described in the Definitions/Glossary page. General Chemistry Method SM 3500 FE B: The following samples were diluted due to the nature of the sample matrix. The samples were analyzed undiluted and with a 5x dilution. The diluted samples returned a result significantly different than the undiluted samples therefore the diluted samples were reported: TRC-2SR (400-179567-2), TRC-4 (400-179567-3) and TRC-13 (400-179567-7). Elevated reporting limits (RLs) are provided. No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. Organic Prep No analytical or quality issues were noted, other than those described in the Definitions/Glossary page. VOA Prep No analytical or quality issues were noted, other than those described in the Definitions/Glossary page. Eurofins TestAmerica, Pensacola Page 3 of 40 11 /29/2019 Detection Summary Client: Hart & Hickman, PC Job ID: 400-179567-1 Project/Site: Former Raleigh #MGP Site SDG: SCA-008 Client Sample ID: TRC-2DR Lab Sample ID: 400-179567-1 Analyte Result Qualifier RL MDL Unit Dil Fac D Method Prep Type Alkalinity, Total 157 1.00 mg/L 1 SM 2320B Total/NA Client Sample ID: TRC-2SR Lab Sample ID: 400-179567-2 C Analyte Result Qualifier RL MDL Unit Dil Fac D Method Prep Type 1-Methylnaphthalene 1.14 0.216 ug/L 1 8270E ILL Total/NA 2-Methylnaphthalene 0.589 0.216 ug/L 1 8270E ILL Total/NA Acenaphthene 1.35 0.216 ug/L 1 8270E ILL Total/NA Acenaphthylene 0.562 0.216 ug/L 1 8270E ILL Total/NA Fluoranthene 0.612 0.216 ug/L 1 8270E ILL Total/NA Fluorene 1.49 0.216 ug/L 1 8270E ILL Total/NA Naphthalene 3.40 0.216 ug/L 1 8270E ILL Total/NA Phenanthrene 0.382 0.216 ug/L 1 8270E ILL Total/NA Pyrene 0.600 0.216 ug/L 1 8270E ILL Total/NA Manganese 4.53 0.0100 mg/L 1 6010D Total/NA Alkalinity, Total 289 1.00 mg/L 1 SM 2320B Total/NA Ferrous Iron 2.23 HF 0.500 mg/L 5 SM 3500 FE B Total/NA Client Sample ID: TRC-4 Lab Sample ID: 400-179567-3 Analyte Result Qualifier RL MDL Unit Dil Fac D Method Prep Type Benzene 730 10.0 ug/L 10 8260B Total/NA Ethylbenzene 149 10.0 ug/L 10 8260B Total/NA Toluene 364 10.0 ug/L 10 8260B Total/NA Xylenes, Total 444 100 ug/L 10 8260B Total/NA 1-Methylnaphthalene 169 E 0.176 ug/L 1 8270E ILL Total/NA 2-Methylnaphthalene 161 E 0.176 ug/L 1 8270E ILL Total/NA Acenaphthene 5.10 0.176 ug/L 1 8270E ILL Total/NA Acenaphthylene 14.8 0.176 ug/L 1 8270E ILL Total/NA Anthracene 2.46 0.176 ug/L 1 8270E ILL Total/NA Fluoranthene 2.46 0.176 ug/L 1 8270E ILL Total/NA Fluorene 9.91 0.176 ug/L 1 8270E ILL Total/NA Naphthalene 280 E 0.176 ug/L 1 8270E ILL Total/NA Phenanthrene 18.3 0.176 ug/L 1 8270E ILL Total/NA Pyrene 3.12 0.176 ug/L 1 8270E ILL Total/NA 1-Methylnaphthalene - DL 231 8.80 ug/L 50 8270E ILL Total/NA 2-Methylnaphthalene - DL 220 8.80 ug/L 50 8270E ILL Total/NA Acenaphthylene - DL 14.8 8.80 ug/L 50 8270E ILL Total/NA Fluorene - DL 10.4 8.80 ug/L 50 8270E ILL Total/NA Naphthalene - DL 1510 8.80 ug/L 50 8270E ILL Total/NA Phenanthrene - DL 19.0 8.80 ug/L 50 8270E ILL Total/NA Manganese 3.91 0.0100 mg/L 1 6010D Total/NA Alkalinity, Total 140 1.00 mg/L 1 SM 2320B Total/NA Ferrous Iron 1.36 HF 0.500 mg/L 5 SM 3500 FE B Total/NA Client Sample ID: TRC-4D Lab Sample ID: 400-179567-4 Analyte Result Qualifier RL MDL Unit Dil Fac D Method Prep Type Benzene 2.12 1.00 ug/L 1 8260B Total/NA 1-Methylnaphthalene 47.4 E 0.183 ug/L 1 8270E ILL Total/NA 2-Methylnaphthalene 23.3 0.183 ug/L 1 8270E ILL Total/NA Acenaphthene 60.0 E 0.183 ug/L 1 8270E ILL Total/NA This Detection Summary does not include radiochemical test results. Eurofins TestAmerica, Pensacola Page 4 of 40 11 /29/2019 Detection Summary Client: Hart & Hickman, PC Job ID: 400-179567-1 Project/Site: Former Raleigh #MGP Site SDG: SCA-008 Client Sample ID: TRC-413 (Continued) Lab Sample ID: 400-179567-4 Analyte Result Qualifier RL MDL Unit Dil Fac D Method Prep Type Acenaphthylene 2.88 0.183 ug/L 1 8270E LL Total/NA Anthracene 7.50 0.183 ug/L 1 8270E LL Total/NA Benzo[a]anthracene 0.678 0.183 ug/L 1 8270E LL Total/NA Benzo[a]pyrene 0.411 0.183 ug/L 1 8270E LL Total/NA Benzo[b]fluoranthene 0.318 0.183 ug/L 1 8270E LL Total/NA Chrysene 0.625 0.183 ug/L 1 8270E LL Total/NA Fluoranthene 4.60 0.183 ug/L 1 8270E LL Total/NA Fluorene 22.9 0.183 ug/L 1 8270E LL Total/NA Naphthalene 46.8 E 0.183 ug/L 1 8270E LL Total/NA Phenanthrene 38.6 E 0.183 ug/L 1 8270E LL Total/NA Pyrene 6.16 0.183 ug/L 1 8270E LL Total/NA 1-Methylnaphthalene - DL 48.7 0.913 ug/L 5 8270E LL Total/NA 2-Methylnaphthalene - DL 23.3 0.913 ug/L 5 8270E LL Total/NA Acenaphthene - DL 70.9 0.913 ug/L 5 8270E LL Total/NA Acenaphthylene - DL 2.86 0.913 ug/L 5 8270E LL Total/NA Anthracene - DL 7.15 0.913 ug/L 5 8270E LL Total/NA Fluoranthene - DL 4.36 0.913 ug/L 5 8270E LL Total/NA Fluorene - DL 23.9 0.913 ug/L 5 8270E LL Total/NA Naphthalene - DL 51.2 0.913 ug/L 5 8270E LL Total/NA Phenanthrene - DL 41.8 0.913 ug/L 5 8270E LL Total/NA Pyrene - DL 5.76 0.913 ug/L 5 8270E LL Total/NA Manganese 0.188 0.0100 mg/L 1 6010D Total/NA Alkalinity, Total 120 1.00 mg/L 1 SM 2320B Total/NA Client Sample ID: TRC-9 Lab Sample ID: 400-179567-5 Analyte Result Qualifier RL MDL Unit Dil Fac D Method Prep Type Manganese 0.560 0.0100 mg/L 1 6010D Total/NA Alkalinity, Total 72.7 1.00 mg/L 1 SM 2320B Total/NA Client Sample ID: TRC-12 Lab Sample ID: 400-179567-6 Analyte Result Qualifier RL MDL Unit Dil Fac D Method Prep Type Naphthalene 0.227 0.183 ug/L 1 8270E LL Total/NA Manganese 0.549 0.0100 mg/L 1 6010D Total/NA Alkalinity, Total 233 1.00 mg/L 1 SM 2320B Total/NA Client Sample ID: TRC-13 Lab Sample ID: 400-179567-7 Analyte Result Qualifier RL MDL Unit Dil Fac D Method Prep Type 1-Methylnaphthalene 57.2 E 0.176 ug/L 1 8270E LL Total/NA 2-Methylnaphthalene 0.241 0.176 ug/L 1 8270E LL Total/NA Acenaphthene 59.7 E 0.176 ug/L 1 8270E LL Total/NA Acenaphthylene 47.9 E 0.176 ug/L 1 8270E LL Total/NA Anthracene 8.21 0.176 ug/L 1 8270E LL Total/NA Benzo[a]anthracene 0.464 0.176 ug/L 1 8270E LL Total/NA Benzo[a]pyrene 0.629 0.176 ug/L 1 8270E LL Total/NA Benzo[b]fluoranthene 0.344 0.176 ug/L 1 8270E LL Total/NA Benzo[g,h,i]perylene 0.412 0.176 ug/L 1 8270E LL Total/NA Benzo[k]fluoranthene 0.181 0.176 ug/L 1 8270E LL Total/NA Chrysene 0.466 0.176 ug/L 1 8270E LL Total/NA Fluoranthene 5.04 0.176 ug/L 1 8270E LL Total/NA This Detection Summary does not include radiochemical test results. Eurofins TestAmerica, Pensacola Page 5 of 40 11 /29/2019 Detection Summary Client: Hart & Hickman, PC Job ID: 400-179567-1 Project/Site: Former Raleigh #MGP Site SDG: SCA-008 Client Sample ID: TRC-13 (Continued) Lab Sample ID: 400-179567-7 Analyte Result Qualifier RL MDL Unit Dil Fac D Method Prep Type Fluorene 9.34 0.176 ug/L 1 8270E ILL Total/NA Indeno[1,2,3-cd]pyrene 0.319 0.176 ug/L 1 8270E ILL Total/NA Naphthalene 1.90 0.176 ug/L 1 8270E ILL Total/NA Phenanthrene 26.3 0.176 ug/L 1 8270E ILL Total/NA Pyrene 7.59 0.176 ug/L 1 8270E ILL Total/NA 1-Methylnaphthalene - DL 65.1 0.880 ug/L 5 8270E ILL Total/NA Acenaphthene - DL 69.8 0.880 ug/L 5 8270E ILL Total/NA Acenaphthylene - DL 65.1 0.880 ug/L 5 8270E ILL Total/NA Anthracene - DL 8.06 0.880 ug/L 5 8270E ILL Total/NA Fluoranthene - DL 5.03 0.880 ug/L 5 8270E ILL Total/NA Fluorene - DL 9.72 0.880 ug/L 5 8270E ILL Total/NA Naphthalene - DL 1.77 0.880 ug/L 5 8270E ILL Total/NA Phenanthrene - DL 28.4 0.880 ug/L 5 8270E ILL Total/NA Pyrene - DL 7.66 0.880 ug/L 5 8270E ILL Total/NA Manganese 7.45 0.0100 mg/L 1 6010D Total/NA Alkalinity, Total 169 1.00 mg/L 1 SM 2320B Total/NA Ferrous Iron 1.56 HF 0.500 mg/L 5 SM 3500 FE B Total/NA Client Sample ID: EB-1 Lab Sample ID: 400-179567-8 INo Detections. C Client Sample ID: TRIP BLANK Lab Sample ID: 400-179567-9 No Detections This Detection Summary does not include radiochemical test results. Eurofins TestAmerica, Pensacola Page 6 of 40 11 /29/2019 Sample Summary Client: Hart & Hickman, PC Project/Site: Former Raleigh #MGP Site Job ID: 400-179567-1 SDG: SCA-008 Lab Sample ID Client Sample ID Matrix Collected Received Asset ID 400-179567-1 TRC-2DR Water 11/13/1911.25 11/14/1913:09 400-179567-2 TRC-2SR Water 11/13/1912:35 11/14/19 13:09 400-179567-3 TRC-4 Water 11/13/19 08:35 11/14/19 13:09 400-179567-4 TRC-4D Water 11/13/19 09:25 11/14/19 13:09 400-179567-5 TRC-9 Water 11/13/1914:55 11/14/19 13:09 400-179567-6 TRC-12 Water 11/13/1913:45 11/14/19 13:09 400-179567-7 TRC-13 Water 11/13/1910:20 11/14/19 13:09 400-179567-8 EB-1 Water 11/13/1915:15 11/14/19 13:09 400-179567-9 TRIP BLANK Water 11/13/19 00:00 11/14/19 13:09 Eurofins TestAmerica, Pensacola Page 7 of 40 11 /29/2019 Client Sample Results Client: Hart & Hickman, PC Job ID: 400-179567-1 Project/Site: Former Raleigh #MGP Site SDG: SCA-008 Client Sample ID: TRC-2DR Lab Sample ID: 400-179567-1 Date Collected: 11/13/19 11:25 Matrix: Water Date Received: 11/14/19 13:09 Method: 8260B - Volatile Organic Compounds (GC/MS) Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Benzene ND 1.00 ug/L 11/23/1917:14 1 Ethylbenzene ND 1.00 ug/L 11/23/1917:14 1 Toluene ND 1.00 ug/L 11/23/1917:14 1 V Xylenes, Total ND 10.0 ug/L 11/23/19 17:14 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac 4-Bromofluorobenzene 92 78 - 118 11123119 17:14 1 Dibromofluoromethane 95 81- 121 11123119 17:14 1 Toluene-d8 (Surr) 101 80 - 120 11123119 17:14 1 Method: 8270E LL - Semivolatile Organic Compounds by GC/MS - Low Level Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac 1-Methylnaphthalene ND 0.183 ug/L 11/20/1912:00 11/26/1917:23 1 2-Methylnaphthalene ND 0.183 ug/L 11/20/1912:00 11/26/1917:23 1 Acenaphthene ND 0.183 ug/L 11/20/1912:00 11/26/1917:23 1 Acenaphthylene ND 0.183 ug/L 11/20/1912:00 11/26/1917:23 1 Anthracene ND 0.183 ug/L 11/20/1912:00 11/26/1917:23 1 Benzo[a]anthracene ND 0.183 ug/L 11/20/1912:00 11/26/1917:23 1 Benzo[a]pyrene ND 0.183 ug/L 11/20/1912:00 11/26/1917:23 1 Benzo[b]fluoranthene ND 0.183 ug/L 11/20/1912:00 11/26/1917:23 1 Benzo[g,h,i]perylene ND 0.183 ug/L 11/20/1912:00 11/26/1917:23 1 Benzo[k]fluoranthene ND 0.183 ug/L 11/20/1912:00 11/26/1917:23 1 Chrysene ND 0.183 ug/L 11/20/1912:00 11/26/1917:23 1 Dibenz(a,h)anthracene ND 0.183 ug/L 11/20/1912:00 11/26/1917:23 1 Fluoranthene ND 0.183 ug/L 11/20/1912:00 11/26/1917:23 1 Fluorene ND 0.183 ug/L 11/20/1912:00 11/26/1917:23 1 Indeno[1,2,3-cd]pyrene ND 0.183 ug/L 11/20/1912:00 11/26/1917:23 1 Naphthalene ND 0.183 ug/L 11/20/1912:00 11/26/1917:23 1 Phenanthrene ND 0.183 ug/L 11/20/1912:00 11/26/1917:23 1 Pyrene ND 0.183 ug/L 11/20/1912:00 11/26/1917:23 1 Surrogate %Recovery Qualifier Terphenyl-d14 (Surr) 74 2-Fluorobiphenyl 50 Nitrobenzene-d5 (Surr) 53 Method: 6010D - Metals (ICP) Analyte Result Qualifier Manganese ND General Chemistry Analyte Alkalinity, Total Ferrous Iron Limits 20-126 23-105 28-111 RL 0.0100 Result Qualifier RL 157 1.00 ND HF 0.100 Prepared Analyzed Dil Fac 11120119 12:00 11126119 17:23 1 11120119 12:00 11126119 17:23 1 11120119 12:00 11126119 17:23 1 MDL Unit D Prepared Analyzed Dil Fac mg/L 11/15/1915:49 11/16/1914:12 1 MDL Unit D Prepared Analyzed Dil Fac mg/L 11 /20/19 15:00 1 mg/L 11/19/19 17:14 1 Page 8 of 40 Eurofins TestAmerica, Pensacola 11 /29/2019 Client Sample Results Client: Hart & Hickman, PC Project/Site: Former Raleigh #MGP Site Job ID: 400-179567-1 SDG: SCA-008 Client Sample ID: TRC-2SR Lab Sample ID: 400-179567-2 Date Collected: 11/13/19 12:35 Matrix: Water Date Received: 11/14/19 13:09 Method: 8260B - Volatile Organic Compounds (GC/MS) Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Benzene ND 1.00 ug/L 11/23/1917:42 1 Ethylbenzene ND 1.00 ug/L 11/23/1917:42 1 Toluene ND 1.00 ug/L 11/23/1917:42 1 Xylenes, Total ND 10.0 ug/L 11/23/19 17:42 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac 4-Bromofluorobenzene 92 78 - 118 11123119 17:42 1 Dibromofluoromethane 95 81- 121 11123119 17:42 1 Toluene-d8 (Surr) 103 80 - 120 11123119 17:42 1 Method: 8270E LL - Semivolatile Organic Compounds by GC/MS - Low Level Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac 1-Methyl naphthalene 1.14 0.216 ug/L 11/20/1912:00 11/26/1917:50 1 2-Methyl naphthalene 0.589 0.216 ug/L 11/20/1912:00 11/26/1917:50 1 Acenaphthene 1.35 0.216 ug/L 11/20/1912:00 11/26/1917:50 1 Acenaphthylene 0.562 0.216 ug/L 11/20/1912:00 11/26/1917:50 1 Anthracene ND 0.216 ug/L 11/20/1912:00 11/26/1917:50 1 Benzo[a]anthracene ND 0.216 ug/L 11/20/1912:00 11/26/1917:50 1 Benzo[a]pyrene ND 0.216 ug/L 11/20/1912:00 11/26/1917:50 1 Benzo[b]fluoranthene ND 0.216 ug/L 11/20/1912:00 11/26/1917:50 1 Benzo[g,h,i]perylene ND 0.216 ug/L 11/20/1912:00 11/26/1917:50 1 Benzo[k]fluoranthene ND 0.216 ug/L 11/20/1912:00 11/26/1917:50 1 Chrysene ND 0.216 ug/L 11/20/1912:00 11/26/1917:50 1 Dibenz(a,h)anthracene ND 0.216 ug/L 11/20/1912:00 11/26/1917:50 1 Fluoranthene 0.612 0.216 ug/L 11/20/1912:00 11/26/1917:50 1 Fluorene 1.49 0.216 ug/L 11/20/1912:00 11/26/1917:50 1 Indeno[1,2,3-cd]pyrene ND 0.216 ug/L 11/20/1912:00 11/26/1917:50 1 Naphthalene 3.40 0.216 ug/L 11/20/1912:00 11/26/1917:50 1 Phenanthrene 0.382 0.216 ug/L 11/20/1912:00 11/26/1917:50 1 Pyrene 0.600 0.216 ug/L 11/20/1912:00 11/26/1917:50 1 Surrogate Terphenyl-d14 (Surr) 2-Fluorobiphenyl Nitrobenzene-d5 (Surr) Method: 6010D - Metals (ICP) Analyte Manganese General Chemistry Analyte Alkalinity, Total Ferrous Iron %Recovery Qualifier Limits Prepared Analyzed Dil Fac 76 20 - 126 11120119 12: 00 11126119 17: 50 1 59 23 - 105 11120119 12: 00 11126119 17: 50 1 67 28 - 111 11120119 12:00 11126119 17:50 1 Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac 4.53 0.0100 mg/L 11/15/1915:49 11/16/1914:40 1 Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac 289 1.00 mg/L 11/20/1915:00 1 2.23 HF 0.500 mg/L 11/19/1917:28 5 Eurofins TestAmerica, Pensacola Page 9 of 40 11 /29/2019 Client Sample Results Client: Hart & Hickman, PC Project/Site: Former Raleigh #MGP Site Job ID: 400-179567-1 SDG: SCA-008 Client Sample ID: TRC-4 Lab Sample ID: 400-179567-3 Date Collected: 11/13/19 08:35 Matrix: Water Date Received: 11/14/19 13:09 Method: 8260B - Volatile Organic Compounds (GC/MS) Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Benzene 730 10.0 ug/L 11/23/1919:34 10 Ethylbenzene 149 10.0 ug/L 11/23/1919:34 10 ■;i Toluene 364 10.0 ug/L 11/23/1919:34 10 Xylenes, Total 444 100 ug/L 11/23/19 19:34 10 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac 4-Bromofluorobenzene 80 78 - 118 11123119 19:34 10 Dibromofluoromethane 96 81- 121 11123119 19:34 10 Toluene-d8 (Surr) 102 80 - 120 11123119 19:34 10 Method: 8270E LL - Semivolatile Organic Compounds by GC/MS - Low Level Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac 1-Methyl naphthalene 169 E 0.176 ug/L 11/20/1912:00 11/26/1918:16 1 2-Methyl naphthalene 161 E 0.176 ug/L 11/20/1912:00 11/26/1918:16 1 Acenaphthene 5.10 0.176 ug/L 11/20/1912:00 11/26/1918:16 1 Acenaphthylene 14.8 0.176 ug/L 11/20/1912:00 11/26/1918:16 1 Anthracene 2.46 0.176 ug/L 11 /20/19 12:00 11 /26/19 18:16 1 Benzo[a]anthracene ND 0.176 ug/L 11/20/1912:00 11/26/1918:16 1 Benzo[a]pyrene ND 0.176 ug/L 11/20/1912:00 11/26/1918:16 1 Benzo[b]fluoranthene ND 0.176 ug/L 11/20/1912:00 11/26/1918:16 1 Benzo[g,h,i]perylene ND 0.176 ug/L 11/20/1912:00 11/26/1918:16 1 Benzo[k]fluoranthene ND 0.176 ug/L 11/20/1912:00 11/26/1918:16 1 Chrysene ND 0.176 ug/L 11/20/1912:00 11/26/1918:16 1 Dibenz(a,h)anthracene ND 0.176 ug/L 11/20/1912:00 11/26/1918:16 1 Fluoranthene 2.46 0.176 ug/L 11/20/1912:00 11/26/1918:16 1 Fluorene 9.91 0.176 ug/L 11/20/1912:00 11/26/1918:16 1 Indeno[1,2,3-cd]pyrene ND 0.176 ug/L 11/20/1912:00 11/26/1918:16 1 Naphthalene 280 E 0.176 ug/L 11/20/1912:00 11/26/1918:16 1 Phenanthrene 18.3 0.176 ug/L 11/20/1912:00 11/26/1918:16 1 Pyrene 3.12 0.176 ug/L 11/20/1912:00 11/26/1918:16 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac Terphenyl-d14 (Surr) 69 20- 126 11120119 12:00 11126119 18:16 1 2-Fluorobiphenyl 54 23 - 105 11120119 12:00 11126119 18:16 1 Nitrobenzene-d5 (Surr) 86 28 - 111 11120119 12:00 11126119 18:16 1 Method: 8270E LL - Semivolatile Organic Compounds by GC/MS - Low Level - DL Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac 1-Methyl naphthalene 231 8.80 ug/L 11/20/1912:00 11/27/1915:13 50 2-Methyl naphthalene 220 8.80 ug/L 11/20/1912:00 11/27/1915:13 50 Acenaphthene ND 8.80 ug/L 11/20/1912:00 11/27/1915:13 50 Acenaphthylene 14.8 8.80 ug/L 11/20/1912:00 11/27/1915:13 50 Anthracene ND 8.80 ug/L 11/20/1912:00 11/27/1915:13 50 Benzo[a]anthracene ND 8.80 ug/L 11/20/1912:00 11/27/1915:13 50 Benzo[a]pyrene ND 8.80 ug/L 11/20/1912:00 11/27/1915:13 50 Benzo[b]fluoranthene ND 8.80 ug/L 11/20/1912:00 11/27/1915:13 50 Benzo[g,h,i]perylene ND 8.80 ug/L 11/20/1912:00 11/27/1915:13 50 Benzo[k]fluoranthene ND 8.80 ug/L 11/20/1912:00 11/27/1915:13 50 Chrysene ND 8.80 ug/L 11/20/1912:00 11/27/1915:13 50 Dibenz(a,h)anthracene ND 8.80 ug/L 11/20/1912:00 11/27/1915:13 50 Eurofins TestAmerica, Pensacola Page 10 of 40 11 /29/2019 Client Sample Results Client: Hart & Hickman, PC Project/Site: Former Raleigh #MGP Site Job ID: 400-179567-1 SDG: SCA-008 Client Sample ID: TRC-4 Lab Sample ID: 400-179567-3 Date Collected: 11/13/19 08:35 Matrix: Water Date Received: 11/14/19 13:09 Method: 8270E LL - Semivolatile Organic Compounds by GC/MS - Low Level - DL (Continued) Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Fluoranthene ND 8.80 ug/L 11/20/1912:00 11/27/1915:13 50 Fluorene 10.4 8.80 ug/L 11/20/1912:00 11/27/1915:13 50 Indeno[1,2,3-cd]pyrene ND 8.80 ug/L 11/20/1912:00 11/27/1915:13 50 Naphthalene 1510 8.80 ug/L 11/20/1912:00 11/27/1915:13 50 Phenanthrene 19.0 8.80 ug/L 11/20/1912:00 11/27/1915:13 50 Pyrene ND 8.80 ug/L 11/20/1912:00 11/27/1915:13 50 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac Terphenyl-d 14 (Surr) 0 X D 20 - 126 11120119 12:00 11127119 15:13 50 2-Fluorobiphenyl 0 X D 23 - 105 11120119 12:00 11127119 15:13 50 Nitrobenzene-d5 (Surr) 0 X D 28 - 111 11120119 12:00 11127119 15:13 50 Method: 6010D - Metals (ICP) Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Manganese 3.91 0.0100 mg/L 11/15/1915:49 11/16/1914:44 1 General Chemistry Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Alkalinity, Total 140 1.00 mg/L 11/20/19 15:00 1 Ferrous Iron 1.36 HF 0.500 mg/L 11/19/19 17:28 5 Eurofins TestAmerica, Pensacola Page 11 of 40 11 /29/2019 Client Sample Results Client: Hart & Hickman, PC Project/Site: Former Raleigh #MGP Site Job ID: 400-179567-1 SDG: SCA-008 Client Sample ID: TRC-413 Lab Sample ID: 400-179567-4 Date Collected: 11/13/19 09:25 Matrix: Water Date Received: 11/14/19 13:09 Method: 8260B - Volatile Organic Compounds (GC/MS) Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Benzene 2.12 1.00 ug/L 11/23/1918:10 1 Ethylbenzene ND 1.00 ug/L 11/23/1918:10 1 Toluene ND 1.00 ug/L 11/23/1918:10 1 Xylenes, Total ND 10.0 ug/L 11/23/19 18:10 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac 4-Bromofluorobenzene 90 78 - 118 11123119 18:10 1 Dibromofluoromethane 95 81- 121 11123119 18:10 1 Toluene-d8 (Surr) 102 80 - 120 11123119 18:10 1 Method: 8270E LL - Semivolatile Organic Compounds by GC/MS - Low Level Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac 1-Methyl naphthalene 47.4 E 0.183 ug/L 11/20/1912:00 11/26/1918:43 1 2-Methyl naphthalene 23.3 0.183 ug/L 11/20/1912:00 11/26/1918:43 1 Acenaphthene 60.0 E 0.183 ug/L 11/20/1912:00 11/26/1918:43 1 Acenaphthylene 2.88 0.183 ug/L 11/20/1912:00 11/26/1918:43 1 Anthracene 7.50 0.183 ug/L 11 /20/19 12:00 11 /26/19 18:43 1 Benzo[a]anth race ne 0.678 0.183 ug/L 11/20/1912:00 11/26/1918:43 1 Benzo[a]pyrene 0.411 0.183 ug/L 11/20/1912:00 11/26/1918:43 1 Benzo[b]fluoranthene 0.318 0.183 ug/L 11/20/1912:00 11/26/1918:43 1 Benzo[g,h,i]perylene ND 0.183 ug/L 11/20/1912:00 11/26/1918:43 1 Benzo[k]fluoranthene ND 0.183 ug/L 11/20/1912:00 11/26/1918:43 1 Chrysene 0.625 0.183 ug/L 11/20/1912:00 11/26/1918:43 1 Dibenz(a,h)anthracene ND 0.183 ug/L 11/20/1912:00 11/26/1918:43 1 Fluoranthene 4.60 0.183 ug/L 11/20/1912:00 11/26/1918:43 1 Fluorene 22.9 0.183 ug/L 11/20/1912:00 11/26/1918:43 1 Indeno[1,2,3-cd]pyrene ND 0.183 ug/L 11/20/1912:00 11/26/1918:43 1 Naphthalene 46.8 E 0.183 ug/L 11/20/1912:00 11/26/1918:43 1 Phenanthrene 38.6 E 0.183 ug/L 11/20/1912:00 11/26/1918:43 1 Pyrene 6.16 0.183 ug/L 11/20/1912:00 11/26/1918:43 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac Terphenyl-d14 (Surr) 60 20- 126 11120119 12:00 11126119 18:43 1 2-Fluorobiphenyl 49 23 - 105 11120119 12:00 11126119 18:43 1 Nitrobenzene-d5 (Surr) 53 28 - 111 11120119 12:00 11126119 18:43 1 Method: 8270E LL - Semivolatile Organic Compounds by GC/MS - Low Level - DL Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac 1-Methyl naphthalene 48.7 0.913 ug/L 11/20/1912:00 11/27/1915:40 5 2-Methyl naphthalene 23.3 0.913 ug/L 11/20/1912:00 11/27/1915:40 5 Acenaphthene 70.9 0.913 ug/L 11/20/1912:00 11/27/1915:40 5 Acenaphthylene 2.86 0.913 ug/L 11/20/1912:00 11/27/1915:40 5 Anthracene 7.15 0.913 ug/L 11/20/1912:00 11/27/1915:40 5 Benzo[a]anthracene ND 0.913 ug/L 11/20/1912:00 11/27/1915:40 5 Benzo[a]pyrene ND 0.913 ug/L 11/20/1912:00 11/27/1915:40 5 Benzo[k]fluoranthene ND 0.913 ug/L 11/20/1912:00 11/27/1915:40 5 Benzo[g,h,i]perylene ND 0.913 ug/L 11/20/1912:00 11/27/1915:40 5 Benzo[k]fluoranthene ND 0.913 ug/L 11/20/1912:00 11/27/1915:40 5 Chrysene ND 0.913 ug/L 11/20/1912:00 11/27/1915:40 5 Dibenz(a,h)anthracene ND 0.913 ug/L 11/20/1912:00 11/27/1915:40 5 Eurofins TestAmerica, Pensacola Page 12 of 40 11 /29/2019 Client Sample Results Client: Hart & Hickman, PC Job ID: 400-179567-1 Project/Site: Former Raleigh #MGP Site SDG: SCA-008 Client Sample ID: TRC-413 Lab Sample ID: 400-179567-4 Date Collected: 11/13/19 09:25 Matrix: Water Date Received: 11/14/19 13:09 Method: 8270E LL - Semivolatile Organic Compounds by GC/MS - Low Level - DL (Continued) Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Fluoranthene 4.36 0.913 ug/L 11/20/1912:00 11/27/1915:40 5 Fluorene 23.9 0.913 ug/L 11/20/1912:00 11/27/1915:40 5 Indeno[1,2,3-cd]pyrene ND 0.913 ug/L 11/20/1912:00 11/27/1915:40 5 Naphthalene 51.2 0.913 ug/L 11/20/1912:00 11/27/1915:40 5 Phenanthrene 41.8 0.913 ug/L 11/20/1912:00 11/27/1915:40 5 Pyrene 5.76 0.913 ug/L 11 /20/19 12:00 11 /27/19 15:40 5 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac Terphenyl-d14 (Surr) 57 20- 126 11120119 12:00 11127119 15:40 5 2-Fluorobiphenyl 48 23 - 105 11120119 12:00 11127119 15:40 5 Nitrobenzene-d5 (Surr) 50 28 - 111 11120119 12:00 11127119 15:40 5 Method: 6010D - Metals (ICP) Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Manganese 0.188 0.0100 mg/L 11/15/1915:49 11/16/1914:47 1 General Chemistry Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Alkalinity, Total 120 1.00 mg/L 11/20/19 15:00 1 Ferrous Iron ND HF 0.100 mg/L 11/19/19 17:21 1 Eurofins TestAmerica, Pensacola Page 13 of 40 11 /29/2019 Client Sample Results Client: Hart & Hickman, PC Project/Site: Former Raleigh #MGP Site F Job ID: 400-179567-1 SDG: SCA-008 Client Sample ID: TRC-9 Lab Sample ID: 400-179567-5 Date Collected: 11/13/19 14:55 Matrix: Water Date Received: 11/14/19 13:09 Method: 6010D - Metals (ICP) Analyte Result Qualifier Manganese 0.560 General Chemistry Analyte Result Qualifier Alkalinity, Total 72.7 Ferrous Iron ND HF RL MDL Unit D Prepared Analyzed Dil Fac 0.0100 mg/L 11/15/1915:49 11/16/1914:51 1 • RL MDL Unit D Prepared Analyzed Dil Fac 1.00 mg/L 11 /20/19 15:00 1 0.100 mg/L 11/19/1917:21 1 F Page 14 of 40 Eurofins TestAmerica, Pensacola 11 /29/2019 Client Sample Results Client: Hart & Hickman, PC Project/Site: Former Raleigh #MGP Site Job ID: 400-179567-1 SDG: SCA-008 Client Sample ID: TRC-12 Lab Sample ID: 400-179567-6 Date Collected: 11/13/19 13:45 Matrix: Water Date Received: 11/14/19 13:09 Method: 8260B - Volatile Organic Compounds (GC/MS) Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Benzene ND 1.00 ug/L 11/23/1918:38 1 Ethylbenzene ND 1.00 ug/L 11/23/1918:38 1 Toluene ND 1.00 ug/L 11/23/1918:38 1 Xylenes, Total ND 10.0 ug/L 11/23/19 18:38 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac 4-Bromofluorobenzene 79 78 - 118 11123119 18:38 1 Dibromofluoromethane 97 81- 121 11123119 18:38 1 Toluene-d8 (Surr) 101 80 - 120 11123119 18:38 1 Method: 8270E LL - Semivolatile Organic Compounds by GC/MS - Low Level Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac 1-Methylnaphthalene ND 0.183 ug/L 11/20/1912:00 11/26/1919:10 1 2-Methylnaphthalene ND 0.183 ug/L 11/20/1912:00 11/26/1919:10 1 Acenaphthene ND 0.183 ug/L 11/20/1912:00 11/26/1919:10 1 Acenaphthylene ND 0.183 ug/L 11/20/1912:00 11/26/1919:10 1 Anthracene ND 0.183 ug/L 11/20/1912:00 11/26/1919:10 1 Benzo[a]anthracene ND 0.183 ug/L 11/20/1912:00 11/26/1919:10 1 Benzo[a]pyrene ND 0.183 ug/L 11/20/1912:00 11/26/1919:10 1 Benzo[b]fluoranthene ND 0.183 ug/L 11/20/1912:00 11/26/1919:10 1 Benzo[g,h,i]perylene ND 0.183 ug/L 11/20/1912:00 11/26/1919:10 1 Benzo[k]fluoranthene ND 0.183 ug/L 11/20/1912:00 11/26/1919:10 1 Chrysene ND 0.183 ug/L 11/20/1912:00 11/26/1919:10 1 Dibenz(a,h)anthracene ND 0.183 ug/L 11/20/1912:00 11/26/1919:10 1 Fluoranthene ND 0.183 ug/L 11/20/1912:00 11/26/1919:10 1 Fluorene ND 0.183 ug/L 11/20/1912:00 11/26/1919:10 1 Indeno[1,2,3-cd]pyrene ND 0.183 ug/L 11/20/1912:00 11/26/1919:10 1 Naphthalene 0.227 0.183 ug/L 11/20/1912:00 11/26/1919:10 1 Phenanthrene ND 0.183 ug/L 11/20/1912:00 11/26/1919:10 1 Pyrene ND 0.183 ug/L 11/20/1912:00 11/26/1919:10 1 Surrogate Terphenyl-d14 (Surr) 2-Fluorobiphenyl Nitrobenzene-d5 (Surr) Method: 6010D - Metals (ICP) Analyte Manganese General Chemistry Analyte Alkalinity, Total Ferrous Iron %Recovery Qualifier Limits Prepared Analyzed Dil Fac 72 20 - 126 11120119 12: 00 11126119 19:10 1 58 23 - 105 11120119 12: 00 11126119 19:10 1 63 28 - 111 11120119 12: 00 11126119 19:10 1 Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac 0.549 0.0100 mg/L 11/15/1915:49 11/16/1914:55 1 Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac 233 1.00 mg/L 11/20/1915:00 1 ND HF 0.100 mg/L 11/19/1917:21 1 Eurofins TestAmerica, Pensacola Page 15 of 40 11 /29/2019 Client Sample Results Client: Hart & Hickman, PC Project/Site: Former Raleigh #MGP Site Job ID: 400-179567-1 SDG: SCA-008 Client Sample ID: TRC-13 Lab Sample ID: 400-179567-7 Date Collected: 11/13/19 10:20 Matrix: Water Date Received: 11/14/19 13:09 Method: 8260B - Volatile Organic Compounds (GC/MS) Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Benzene ND 1.00 ug/L 11/23/1919:06 1 Ethylbenzene ND 1.00 ug/L 11/23/1919:06 1 Toluene ND 1.00 ug/L 11/23/1919:06 1 Xylenes, Total ND 10.0 ug/L 11/23/19 19:06 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac 4-Bromofluorobenzene 88 78 - 118 11123119 19:06 1 Dibromofluoromethane 97 81- 121 11123119 19:06 1 Toluene-d8 (Surr) 101 80 - 120 11123119 19:06 1 Method: 8270E LL - Semivolatile Organic Compounds by GC/MS - Low Level Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac 1-Methyl naphthalene 57.2 E 0.176 ug/L 11/20/1912:03 11/26/1919:37 1 2-Methyl naphthalene 0.241 0.176 ug/L 11/20/1912:03 11/26/1919:37 1 Acenaphthene 59.7 E 0.176 ug/L 11/20/1912:03 11/26/1919:37 1 Acenaphthylene 47.9 E 0.176 ug/L 11/20/1912:03 11/26/1919:37 1 Anthracene 8.21 0.176 ug/L 11 /20/19 12:03 11 /26/19 19:37 1 Benzo[a]anth race ne 0.464 0.176 ug/L 11/20/1912:03 11/26/1919:37 1 Benzo[a]pyrene 0.629 0.176 ug/L 11/20/1912:03 11/26/1919:37 1 Benzo[b]fluoranthene 0.344 0.176 ug/L 11/20/1912:03 11/26/1919:37 1 Benzo[g,h,i]perylene 0.412 0.176 ug/L 11/20/1912:03 11/26/1919:37 1 Benzo[k]fluoranthene 0.181 0.176 ug/L 11/20/1912:03 11/26/1919:37 1 Chrysene 0.466 0.176 ug/L 11/20/1912:03 11/26/1919:37 1 Dibenz(a,h)anthracene ND 0.176 ug/L 11/20/1912:03 11/26/1919:37 1 Fluoranthene 5.04 0.176 ug/L 11/20/1912:03 11/26/1919:37 1 Fluorene 9.34 0.176 ug/L 11/20/1912:03 11/26/1919:37 1 Indeno[1,2,3-cd]pyrene 0.319 0.176 ug/L 11/20/1912:03 11/26/1919:37 1 Naphthalene 1.90 0.176 ug/L 11/20/1912:03 11/26/1919:37 1 Phenanthrene 26.3 0.176 ug/L 11/20/1912:03 11/26/1919:37 1 Pyrene 7.59 0.176 ug/L 11/20/1912:03 11/26/1919:37 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac Terphenyl-d14 (Surr) 80 20- 126 11120119 12:03 11126119 19:37 1 2-Fluorobiphenyl 63 23 - 105 11120119 12:03 11126119 19:37 1 Nitrobenzene-d5 (Surr) 69 28 - 111 11120119 12:03 11126119 19:37 1 Method: 8270E LL - Semivolatile Organic Compounds by GC/MS - Low Level - DL Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac 1-Methyl naphthalene 65.1 0.880 ug/L 11/20/1912:03 11/27/1916:07 5 2-Methylnaphthalene ND 0.880 ug/L 11/20/1912:03 11/27/1916:07 5 Acenaphthene 69.8 0.880 ug/L 11/20/1912:03 11/27/1916:07 5 Acenaphthylene 65.1 0.880 ug/L 11/20/1912:03 11/27/1916:07 5 Anthracene 8.06 0.880 ug/L 11/20/1912:03 11/27/1916:07 5 Benzo[a]anthracene ND 0.880 ug/L 11/20/1912:03 11/27/1916:07 5 Benzo[a]pyrene ND 0.880 ug/L 11/20/1912:03 11/27/1916:07 5 Benzo[b]fluoranthene ND 0.880 ug/L 11/20/1912:03 11/27/1916:07 5 Benzo[g,h,i]perylene ND 0.880 ug/L 11/20/1912:03 11/27/1916:07 5 Benzo[k]fluoranthene ND 0.880 ug/L 11/20/1912:03 11/27/1916:07 5 Chrysene ND 0.880 ug/L 11/20/1912:03 11/27/1916:07 5 Dibenz(a,h)anthracene ND 0.880 ug/L 11/20/1912:03 11/27/1916:07 5 Eurofins TestAmerica, Pensacola Page 16 of 40 11 /29/2019 Client Sample Results Client: Hart & Hickman, PC Job ID: 400-179567-1 Project/Site: Former Raleigh #MGP Site SDG: SCA-008 Client Sample ID: TRC-13 Lab Sample ID: 400-179567-7 Date Collected: 11/13/19 10:20 Matrix: Water Date Received: 11/14/19 13:09 Method: 8270E LL - Semivolatile Organic Compounds by GC/MS - Low Level - DL (Continued) Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Fluoranthene 5.03 0.880 ug/L 11/20/1912:03 11/27/1916:07 5 Fluorene 9.72 0.880 ug/L 11/20/1912:03 11/27/1916:07 5 Indeno[1,2,3-cd]pyrene ND 0.880 ug/L 11/20/1912:03 11/27/1916:07 5 Naphthalene 1.77 0.880 ug/L 11/20/1912:03 11/27/1916:07 5 Phenanthrene 28.4 0.880 ug/L 11/20/1912:03 11/27/1916:07 5 Pyrene 7.66 0.880 ug/L 11 /20/19 12:03 11 /27/19 16:07 5 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac Terphenyl-d14 (Surr) 82 20- 126 11120119 12:03 11127119 16:07 5 2-Fluorobiphenyl 67 23 - 105 11120119 12:03 11127119 16:07 5 Nitrobenzene-d5 (Surr) 67 28 - 111 11120119 12:03 11127119 16:07 5 Method: 6010D - Metals (ICP) Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Manganese 7.45 0.0100 mg/L 11/15/1915:49 11/16/1914:58 1 General Chemistry Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Alkalinity, Total 169 1.00 mg/L 11/20/19 15:00 1 Ferrous Iron 1.56 HF 0.500 mg/L 11/19/19 17:35 5 Eurofins TestAmerica, Pensacola Page 17 of 40 11 /29/2019 Client Sample Results Client: Hart & Hickman, PC Project/Site: Former Raleigh #MGP Site Job ID: 400-179567-1 SDG: SCA-008 Client Sample ID: E13-1 Lab Sample ID: 400-179567-8 Date Collected: 11/13/19 15:15 Matrix: Water Date Received: 11/14/19 13:09 Method: 8260B - Volatile Organic Compounds (GC/MS) Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Benzene ND 1.00 ug/L 11/23/1913:57 1 Ethylbenzene ND 1.00 ug/L 11/23/1913:57 1 Toluene ND 1.00 ug/L 11/23/1913:57 1 Xylenes, Total ND 10.0 ug/L 11/23/19 13:57 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac 4-Bromofluorobenzene 93 78 - 118 11123119 13:57 1 Dibromofluoromethane 97 81- 121 11123119 13:57 1 Toluene-d8 (Surr) 103 80 - 120 11123119 13:57 1 Method: 8270E LL - Semivolatile Organic Compounds by GC/MS - Low Level Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac 1-Methylnaphthalene ND 0.183 ug/L 11/20/19 12:03 11/26/19 20:04 1 2-Methylnaphthalene ND 0.183 ug/L 11/20/19 12:03 11/26/19 20:04 1 Acenaphthene ND 0.183 ug/L 11/20/19 12:03 11/26/19 20:04 1 Acenaphthylene ND 0.183 ug/L 11/20/19 12:03 11/26/19 20:04 1 Anthracene ND 0.183 ug/L 11/20/19 12:03 11/26/19 20:04 1 Benzo[a]anthracene ND 0.183 ug/L 11/20/19 12:03 11/26/19 20:04 1 Benzo[a]pyrene ND 0.183 ug/L 11/20/19 12:03 11/26/19 20:04 1 Benzo[b]fluoranthene ND 0.183 ug/L 11/20/19 12:03 11/26/19 20:04 1 Benzo[g,h,i]perylene ND 0.183 ug/L 11/20/19 12:03 11/26/19 20:04 1 Benzo[k]fluoranthene ND 0.183 ug/L 11/20/19 12:03 11/26/19 20:04 1 Chrysene ND 0.183 ug/L 11/20/19 12:03 11/26/19 20:04 1 Dibenz(a,h)anthracene ND 0.183 ug/L 11/20/19 12:03 11/26/19 20:04 1 Fluoranthene ND 0.183 ug/L 11/20/19 12:03 11/26/19 20:04 1 Fluorene ND 0.183 ug/L 11/20/19 12:03 11/26/19 20:04 1 Indeno[1,2,3-cd]pyrene ND 0.183 ug/L 11/20/19 12:03 11/26/19 20:04 1 Naphthalene ND 0.183 ug/L 11/20/19 12:03 11/26/19 20:04 1 Phenanthrene ND 0.183 ug/L 11/20/19 12:03 11/26/19 20:04 1 Pyrene ND 0.183 ug/L 11/20/19 12:03 11/26/19 20:04 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac Terphenyl-d14 (Surr) 75 20- 126 11120119 12:03 11126119 20:04 1 2-Fluorobiphenyl 61 23 - 105 11120119 12:03 11126119 20:04 1 Nitrobenzene-d5 (Surr) 68 28 - 111 11120119 12:03 11126119 20:04 1 Eurofins TestAmerica, Pensacola Page 18 of 40 11 /29/2019 Client Sample Results Client: Hart & Hickman, PC Project/Site: Former Raleigh #MGP Site F Job ID: 400-179567-1 SDG: SCA-008 Client Sample ID: TRIP BLANK Lab Sample ID: 400-179567-9 Date Collected: 11/13/19 00:00 Matrix: Water Date Received: 11/14/19 13:09 Method: 8260B - Volatile Organic Compounds (GC/MS) Analyte Result Qualifier RL Benzene ND 1.00 Ethylbenzene ND 1.00 Toluene ND 1.00 Xylenes, Total ND 10.0 Surrogate %Recovery Qualifier Limits 4-Bromofluorobenzene 92 78 - 118 Dibromofluoromethane 96 81- 121 Toluene-d8 (Surr) 103 80 - 120 MDL Unit D Prepared Analyzed Dil Fac ug/L 11/23/1914:25 1 ug/L 11/23/1914:25 1 ug/L 11 /23/19 14:25 1 ug/L 11 /23/19 14:25 1 Prepared Analyzed Dil Fac 11123119 14:25 1 11123119 14:25 1 11123119 14:25 1 Eurofins TestAmerica, Pensacola Page 19 of 40 11 /29/2019 Definitions/Glossary Client: Hart & Hickman, PC Project/Site: Former Raleigh #MGP Site Qualifiers GUMS Semi VOA Job ID: 400-179567-1 SDG: SCA-008 Qualifier Qualifier Description D Surrogate or matrix spike recoveries were not obtained because the extract was diluted for analysis; also compounds analyzed at a dilution may be flagged with a D. E Result exceeded calibration range. X Surrogate is outside control limits General Chemistry Qualifier Qualifier Description HF Field parameter with a holding time of 15 minutes. Test performed by laboratory at client's request. Glossary Abbreviation These commonly used abbreviations may or may not be present in this report. rl Listed under the "D" column to designate that the result is reported on a dry weight basis %R Percent Recovery CFL Contains Free Liquid CNF Contains No Free Liquid DER Duplicate Error Ratio (normalized absolute difference) Dil Fac Dilution Factor DL Detection Limit (DoD/DOE) DL, RA, RE, IN Indicates a Dilution, Re -analysis, Re -extraction, or additional Initial metals/anion analysis of the sample DLC Decision Level Concentration (Radiochemistry) EDL Estimated Detection Limit (Dioxin) LOD Limit of Detection (DoD/DOE) LOQ Limit of Quantitation (DoD/DOE) MDA Minimum Detectable Activity (Radiochemistry) MDC Minimum Detectable Concentration (Radiochemistry) MDL Method Detection Limit ML Minimum Level (Dioxin) NC Not Calculated ND Not Detected at the reporting limit (or MDL or EDL if shown) PQL Practical Quantitation Limit QC Quality Control RER Relative Error Ratio (Radiochemistry) RL Reporting Limit or Requested Limit (Radiochemistry) RPD Relative Percent Difference, a measure of the relative difference between two points TEF Toxicity Equivalent Factor (Dioxin) TEQ Toxicity Equivalent Quotient (Dioxin) Eurofins TestAmerica, Pensacola Page 20 of 40 11 /29/2019 Surrogate Summary Client: Hart & Hickman, PC Project/Site: Former Raleigh #MGP Site Method: 8260B - Volatile Organic Compounds (GC/MS) Matrix: Water C Job ID: 400-179567-1 SDG: SCA-008 Prep Twe: Total/NA Percent Surrogate Recovery (Acceptance Limits) BFB DBFM TOL Lab Sample ID Client Sample ID (78-118) (81-121) (80-120) 400-179567-1 TRC-2DR 92 95 101 400-179567-2 TRC-2SR 92 95 103 400-179567-3 TRC-4 80 96 102 400-179567-4 TRC-4D 90 95 102 400-179567-6 TRC-12 79 97 101 400-179567-7 TRC-13 88 97 101 400-179567-8 EB-1 93 97 103 400-179567-9 TRIP BLANK 92 96 103 400-179624-A-1 MS Matrix Spike 102 101 104 400-179624-A-1 MSD Matrix Spike Duplicate 96 98 104 LCS 400-467229/1002 Lab Control Sample 92 101 101 MB 400-467229/4 Method Blank 90 103 102 Surrogate Legend BFB = 4-Bromofluorobenzene DBFM = Dibromofluoromethane TOL = Toluene-d8 (Surr) Method: 8270E LL - Semivolatile Organic Compounds by GC/MS - Low Level Matrix: Water Prep TVDe: Total/NA Percent Surrogate Recovery (Acceptance Limits) TPHL FBP NBZ Lab Sample ID Client Sample ID (20-126) (23-105) (28-111) 400-179567-1 TRC-2DR 74 50 53 400-179567-2 TRC-2SR 76 59 67 400-179567-3 TRC-4 69 54 86 400-179567-3 - DL TRC-4 O X D O X D O X D 400-179567-4 TRC-4D 60 49 53 400-179567-4 - DL TRC-4D 57 48 50 400-179567-6 TRC-12 72 58 63 400-179567-7 TRC-13 80 63 69 400-179567-7 - DL TRC-13 82 67 67 400-179567-8 EB-1 75 61 68 LCS 180-298854/2-A Lab Control Sample 73 67 74 MB 180-298854/1-A Method Blank 75 73 80 Surrogate Legend TPHL = Terphenyl-d14 (Surr) FBP = 2-Fluorobiphenyl NBZ = Nitrobenzene-d5 (Surr) 0 Eurofins TestAmerica, Pensacola Page 21 of 40 11 /29/2019 QC Association Summary Client: Hart & Hickman, PC Job ID: 400-179567-1 Project/Site: Former Raleigh #MGP Site SDG: SCA-008 GC/MS VOA Analysis Batch: 467229 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 400-179567-1 TRC-2DR Total/NA Water 8260B 400-179567-2 TRC-2SR Total/NA Water 8260B 400-179567-3 TRC-4 Total/NA Water 8260B 400-179567-4 TRC-4D Total/NA Water 8260B 400-179567-6 TRC-12 Total/NA Water 8260B 400-179567-7 TRC-13 Total/NA Water 8260B 400-179567-8 EB-1 Total/NA Water 8260B 400-179567-9 TRIP BLANK Total/NA Water 8260B MB 400-467229/4 Method Blank Total/NA Water 8260B LCS 400-467229/1002 Lab Control Sample Total/NA Water 8260B GC/MS Semi VOA Prep Batch: 298854 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 400-179567-1 TRC-2DR Total/NA Water 3520C 400-179567-2 TRC-2SR Total/NA Water 3520C 400-179567-3 - DL TRC-4 Total/NA Water 3520C 400-179567-3 TRC-4 Total/NA Water 3520C 400-179567-4 TRC-4D Total/NA Water 3520C 400-179567-4 - DL TRC-4D Total/NA Water 3520C 400-179567-6 TRC-12 Total/NA Water 3520C 400-179567-7 - DL TRC-13 Total/NA Water 3520C 400-179567-7 TRC-13 Total/NA Water 3520C 400-179567-8 EB-1 Total/NA Water 3520C MB 180-298854/1-A Method Blank Total/NA Water 3520C LCS 180-298854/2-A Lab Control Sample Total/NA Water 3520C Analysis Batch: 299477 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 400-179567-1 TRC-2DR Total/NA Water 8270E LL 298854 400-179567-2 TRC-2SR Total/NA Water 8270E LL 298854 400-179567-3 TRC-4 Total/NA Water 8270E LL 298854 400-179567-4 TRC-4D Total/NA Water 8270E LL 298854 400-179567-6 TRC-12 Total/NA Water 8270E LL 298854 400-179567-7 TRC-13 Total/NA Water 8270E LL 298854 400-179567-8 EB-1 Total/NA Water 8270E LL 298854 MB 180-298854/1-A Method Blank Total/NA Water 8270E LL 298854 LCS 180-298854/2-A Lab Control Sample Total/NA Water 8270E LL 298854 Analysis Batch: 299702 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 400-179567-3 - DL TRC-4 Total/NA Water 8270E LL 298854 400-179567-4 - DL TRC-4D Total/NA Water 8270E LL 298854 400-179567-7 - DL TRC-13 Total/NA Water 8270E LL 298854 Metals Prep Batch: 466168 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 400-179567-1 TRC-2DR Total/NA Water 3010A 400-179567-2 TRC-2SR Total/NA Water 3010A Eurofins TestAmerica, Pensacola Page 22 of 40 11 /29/2019 QC Association Summary Client: Hart & Hickman, PC Project/Site: Former Raleigh #MGP Site Job ID: 400-179567-1 SDG: SCA-008 Metals (Continued) Prep Batch: 466168 (Continued) Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 400-179567-3 TRC-4 Total/NA Water 3010A 400-179567-4 TRC-4D Total/NA Water 3010A 400-179567-5 TRC-9 Total/NA Water 3010A 400-179567-6 TRC-12 Total/NA Water 3010A 400-179567-7 TRC-13 Total/NA Water 3010A MB 400-466168/1-A Method Blank Total/NA Water 3010A LCS 400-466168/2-A Lab Control Sample Total/NA Water 3010A 400-179567-1 MS TRC-2DR Total/NA Water 3010A 400-179567-1 MSD TRC-2DR Total/NA Water 3010A Analysis Batch: 466345 E Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 400-179567-1 TRC-2DR Total/NA Water 6010D 466168 400-179567-2 TRC-2SR Total/NA Water 6010D 466168 400-179567-3 TRC-4 Total/NA Water 6010D 466168 400-179567-4 TRC-4D Total/NA Water 6010D 466168 400-179567-5 TRC-9 Total/NA Water 6010D 466168 400-179567-6 TRC-12 Total/NA Water 6010D 466168 400-179567-7 TRC-13 Total/NA Water 6010D 466168 MB 400-466168/1-A Method Blank Total/NA Water 6010D 466168 LCS 400-466168/2-A Lab Control Sample Total/NA Water 6010D 466168 400-179567-1 MS TRC-2DR Total/NA Water 6010D 466168 400-179567-1 MSD TRC-2DR Total/NA Water 6010D 466168 General Chemistry Analysis Batch: 466637 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 400-179567-1 TRC-21DR Total/NA Water SM 3500 FE B 400-179567-2 TRC-2SR Total/NA Water SM 3500 FE B 400-179567-3 TRC-4 Total/NA Water SM 3500 FE B 400-179567-4 TRC-4D Total/NA Water SM 3500 FE B 400-179567-5 TRC-9 Total/NA Water SM 3500 FE B 400-179567-6 TRC-12 Total/NA Water SM 3500 FE B 400-179567-7 TRC-13 Total/NA Water SM 3500 FE B MB 400-466637/6 Method Blank Total/NA Water SM 3500 FE B LCS 400-466637/7 Lab Control Sample Total/NA Water SM 3500 FE B MRL 400-466637/3 Lab Control Sample Total/NA Water SM 3500 FE B 400-179567-1 MS TRC-2DR Total/NA Water SM 3500 FE B 400-179567-1 MS TRC-2DR Total/NA Water SM 3500 FE B 400-179567-1 MSD TRC-2DR Total/NA Water SM 3500 FE B 400-179567-1 MSD TRC-2DR Total/NA Water SM 3500 FE B Analysis Batch: 466839 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 400-179567-1 TRC-2DR Total/NA Water SM 2320B 400-179567-2 TRC-2SR Total/NA Water SM 2320B 400-179567-3 TRC-4 Total/NA Water SM 2320B 400-179567-4 TRC-4D Total/NA Water SM 2320B 400-179567-5 TRC-9 Total/NA Water SM 2320B 400-179567-6 TRC-12 Total/NA Water SM 2320B Eurofins TestAmerica, Pensacola Page 23 of 40 11 /29/2019 QC Association Summary Client: Hart & Hickman, PC Project/Site: Former Raleigh #MGP Site Job ID: 400-179567-1 SDG: SCA-008 General Chemistry (Continued) Analysis Batch: 466839 (Continued) Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 400-179567-7 TRC-13 Total/NA Water SM 2320B MB 400-466839/2 Method Blank Total/NA Water SM 2320B LCS 400-466839/3 Lab Control Sample Total/NA Water SM 2320B E Eurofins TestAmerica, Pensacola Page 24 of 40 11 /29/2019 QC Sample Results Client: Hart & Hickman, PC Job ID: 400-179567-1 Project/Site: Former Raleigh #MGP Site SDG: SCA-008 Method: 8260B - Volatile Organic Compounds (GC/MS) Lab Sample ID: MB 400-467229/4 Client Sample ID: Method Blank Matrix: Water Prep Type: Total/NA Analysis Batch: 467229 MB MB Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Benzene ND 1.00 ug/L 11/23/1911:08 1 Ethylbenzene ND 1.00 ug/L 11/23/1911:08 1 Toluene ND 1.00 ug/L 11/23/1911:08 1 Xylenes, Total ND 10.0 ug/L 11/23/19 11:08 1 MB MB Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac 4-Bromofluorobenzene 90 78 - 118 11123119 11:08 1 Dibromofluoromethane 103 81- 121 11123119 11:08 1 Toluene-d8 (Surr) 102 80 - 120 11123119 11:08 1 Lab Sample ID: LCS 400-467229/1002 Client Sample ID: Lab Control Sample Matrix: Water Prep Type: Total/NA Analysis Batch: 467229 Spike LCS LCS %Rec. Analyte Added Result Qualifier Unit D %Rec Limits Benzene 50.0 47.25 ug/L 95 70-130 Ethylbenzene 50.0 47.96 ug/L 96 70 -130 Toluene 50.0 46.84 ug/L 94 70 -130 Xylenes, Total 100 92.48 ug/L 92 70 -130 LCS LCS Surrogate %Recovery Qualifier Limits 4-Bromofluorobenzene 92 78 - 118 Dibromofluoromethane 101 81 - 121 Toluene-d8 (Surr) 101 80 - 120 Method: 8270E LL - Semivolatile Organic Compounds by GC/MS - Low Level Lab Sample ID: MB 180-298854/1-A Client Sample ID: Method Blank Matrix: Water Prep Type: Total/NA Analysis Batch: 299477 Prep Batch: 298854 MB MB Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac 1-Methylnaphthalene ND 0.190 ug/L 11/20/19 12:00 11/26/19 09:45 1 2-Methylnaphthalene ND 0.190 ug/L 11/20/19 12:00 11/26/19 09:45 1 Acenaphthene ND 0.190 ug/L 11/20/19 12:00 11/26/19 09:45 1 Acenaphthylene ND 0.190 ug/L 11/20/19 12:00 11/26/19 09:45 1 Anthracene ND 0.190 ug/L 11/20/19 12:00 11/26/19 09:45 1 Benzo[a]anthracene ND 0.190 ug/L 11/20/19 12:00 11/26/19 09:45 1 Benzo[a]pyrene ND 0.190 ug/L 11/20/19 12:00 11/26/19 09:45 1 Benzo[b]fluoranthene ND 0.190 ug/L 11/20/19 12:00 11/26/19 09:45 1 Benzo[g,h,i]perylene ND 0.190 ug/L 11/20/19 12:00 11/26/19 09:45 1 Benzo[k]fluoranthene ND 0.190 ug/L 11/20/19 12:00 11/26/19 09:45 1 Chrysene ND 0.190 ug/L 11/20/19 12:00 11/26/19 09:45 1 Dibenz(a,h)anthracene ND 0.190 ug/L 11/20/19 12:00 11/26/19 09:45 1 Fluoranthene ND 0.190 ug/L 11/20/19 12:00 11/26/19 09:45 1 Fluorene ND 0.190 ug/L 11/20/19 12:00 11/26/19 09:45 1 Indeno[1,2,3-cd]pyrene ND 0.190 ug/L 11/20/19 12:00 11/26/19 09:45 1 Naphthalene ND 0.190 ug/L 11/20/19 12:00 11/26/19 09:45 1 10 Eurofins TestAmerica, Pensacola Page 25 of 40 11 /29/2019 QC Sample Results Client: Hart & Hickman, PC Project/Site: Former Raleigh #MGP Site Job ID: 400-179567-1 SDG: SCA-008 Method: 8270E LL - Semivolatile Organic Compounds by GC/MS - Low Level (Continued) Lab Sample ID: MB 180-298854/1-A Matrix: Water Analysis Batch: 299477 Analyte Phenanthrene Pyrene Surrogate Terphenyl-d14 (Surr) 2-Fluorobiphenyl Nitrobenzene-d5 (Surr) MB MB Result Qualifier ND ND MB MB %Recovery Qualifier 75 73 80 Lab Sample ID: LCS 180-298854/2-A Matrix: Water Analysis Batch: 299477 Analyte 1-Methylnaphthalene 2-Methyl naphtha lene Acenaphthene Acenaphthylene Anthracene Benzo[a]anthracene Benzo[a]pyrene Benzo[b]fluoranthene Benzo[g,h,i]perylene Benzo[k]fluoranthene Chrysene Dibenz(a,h)anthracene Fluoranthene Fluorene Indeno[1,2,3-cd]pyrene Naphthalene Phenanthrene Pyrene Surrogate Terphenyl-d14 (Surr) 2-Fluorobiphenyl Nitrobenzene-d5 (Surr) LCS LCS %Recovery Qualifier 73 67 74 Method: 6010D - Metals (ICP) Lab Sample ID: MB 400-466168/1-A Matrix: Water Analysis Batch: 466345 Analyte Manganese RL 0.190 0.190 Limits 20-126 23-105 28-111 MDL Unit ug/L ug/L Spike LCS LCS Added Result Qualifier 20.0 14.04 20.0 14.26 20.0 13.14 20.0 13.98 20.0 14.09 20.0 14.76 20.0 14.74 20.0 13.42 20.0 14.17 20.0 14.07 20.0 13.83 20.0 14.44 20.0 14.88 20.0 14.04 20.0 14.68 20.0 13.85 20.0 13.75 20.0 14.49 Limits 20-126 23-105 28-111 Client Sample ID: Method Blank Prep Type: Total/NA Prep Batch: 298854 D Prepared Analyzed Dil Fac 11 /20/19 12:00 11 /26/19 09:45 1 11 /20/19 12:00 11 /26/19 09:45 1 Prepared Analyzed Dil Fac 11120119 12:00 11126119 09:45 1 11120119 12:00 11126119 09:45 1 11120119 12:00 11126119 09:45 1 Client Sample ID: Lab Control Sample m Prep Type: Total/NA Prep Batch: 298854 %Rec. Unit D %Rec Limits ug/L 70 55-100 ug/L 71 55-100 ug/L 66 50-100 ug/L 70 51 -100 ug/L 70 53-100 ug/L 74 51-100 ug/L 74 51-100 ug/L 67 45-100 ug/L 71 51-100 ug/L 70 49-100 ug/L 69 51 -100 ug/L 72 50-100 ug/L 74 54-100 ug/L 70 53-100 ug/L 73 50-100 ug/L 69 55-100 ug/L 69 51 -100 ug/L 72 47-100 Client Sample ID: Method Blank Prep Type: Total/NA Prep Batch: 466168 MB MB Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac ND 0.0100 mg/L 11/15/1915:49 11/16/1914:05 1 Eurofins TestAmerica, Pensacola Page 26 of 40 11 /29/2019 QC Sample Results Client: Hart & Hickman, PC Project/Site: Former Raleigh #MGP Site Method: 6010D - Metals (ICP) (Continued) Lab Sample ID: LCS 400-466168/2-A Matrix: Water Analysis Batch: 466345 Analyte Manganese Lab Sample ID: 400-179567-1 MS Matrix: Water Analysis Batch: 466345 Sample Sample Analyte Result Qualifier Manganese ND Lab Sample ID: 400-179567-1 MSD Matrix: Water Analysis Batch: 466345 Sample Sample Analyte Result Qualifier Manganese ND Method: SM 2320B - Alkali Lab Sample ID: MB 400-466839/2 Matrix: Water Analysis Batch: 466839 Analyte Alkalinity, Total Lab Sample ID: LCS 400-466839/3 Matrix: Water Analysis Batch: 466839 Job ID: 400-179567-1 SDG: SCA-008 Client Sample ID: Lab Control Sample Prep Type: Total/NA Prep Batch: 466168 Spike LCS LCS %Rec. Added Result Qualifier Unit D %Rec Limits 1.00 1.047 mg/L 105 80 -120 Spike MS MS Added Result Qualifier Unit 1.00 1.038 mg/L Client Sample ID: TRC-2DR Prep Type: Total/NA Prep Batch: 466168 %Rec. D %Rec Limits 104 75-125 Client Sample ID: TRC-2DR Prep Type: Total/NA Prep Batch: 466168 Spike MSD MSD %Rec. RPD Added Result Qualifier Unit D %Rec Limits RPD Limit 1.00 1.019 mg/L 102 75 -125 2 20 Client Sample ID: Method Blank Prep Type: Total/NA MB MB Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac ND 1.00 m9/L 11/20/1915:06 1 Client Sample ID: Lab Control Sample Prep Type: Total/NA Spike LCS LCS %Rec. Analyte Added Result Qualifier Unit D %Rec Limits Alkalinity, Total 100 107.1 nig—/L 107 80-120 Method: SM 3500 FE B - Iron, Ferrous and Ferric Lab Sample ID: MB 400-466637/6 Client Sample ID: Method Blank Matrix: Water Prep Type: Total/NA Analysis Batch: 466637 MB MB Analyte Result Qualifier RL Ferrous Iron ND 0.100 Lab Sample ID: LCS 400-466637/7 Matrix: Water Analysis Batch: 466637 MDL Unit D Prepared Analyzed Dil Fac mg/L 11/19/19 17:14 1 Client Sample ID: Lab Control Sample Prep Type: Total/NA Spike LCS LCS %Rec. Analyte Added Result Qualifier Unit D %Rec Limits Ferrous Iron 0.500 0.4848 mg/L 97 90-110 10 Eurofins TestAmerica, Pensacola Page 27 of 40 11 /29/2019 QC Sample Results Client: Hart & Hickman, PC Job ID: 400-179567-1 Project/Site: Former Raleigh #MGP Site SDG: SCA-008 Method: SM 3500 FE B - Iron, Ferrous and Ferric (Continued) Lab Sample ID: MRL 400-466637/3 Client Sample ID: Lab Control Sample Matrix: Water Prep Type: Total/NA Analysis Batch: 466637 Spike MRL MRL %Rec. Analyte Added Result Qualifier Unit D %Rec Limits Ferrous Iron 0.100 0.1127 mg/L 113 50 -150 Lab Sample ID: 400-179567-1 MS Client Sample ID: TRC-21DR Matrix: Water Prep Type: Total/NA Analysis Batch: 466637 Sample Sample Spike MS MS %Rec. Analyte Result Qualifier Added Result Qualifier Unit D %Rec Limits Ferrous Iron ND HF 0.500 0.3255 mg/L 65 55-134 Lab Sample ID: 400-179567-1 MS Client Sample ID: TRC-2DR m Matrix: Water Prep Type: Total/NA Analysis Batch: 466637 Sample Sample Spike MS MS %Rec. Analyte Result Qualifier Added Result Qualifier Unit D %Rec Limits —Ferrous Iron ND HF 2.50 2.490 mg/L 100 55-134 Lab Sample ID: 400-179567-1 MSD Client Sample ID: TRC-2DR Matrix: Water Prep Type: Total/NA Analysis Batch: 466637 Sample Sample Spike MSD MSD %Rec. RPD Analyte Result Qualifier Added Result Qualifier Unit D %Rec Limits RPD Limit Ferrous Iron ND HF 0.500 0.3433 mg/L 69 55-134 5 26 Lab Sample ID: 400-179567-1 MSD Client Sample ID: TRC-2DR Matrix: Water Prep Type: Total/NA Analysis Batch: 466637 Sample Sample Spike MSD MSD %Rec. RPD Analyte Result Qualifier Added Result Qualifier Unit D %Rec Limits RPD Limit Ferrous Iron ND HF 2.50 2.551 mg/L 102 55-134 2 26 Eurofins TestAmerica, Pensacola Page 28 of 40 11 /29/2019 Lab Chronicle Client: Hart & Hickman, PC Job ID: 400-179567-1 Project/Site: Former Raleigh #MGP Site SDG: SCA-008 Client Sample ID: TRC-2DR Lab Sample ID: 400-179567-1 Date Collected: 11/13/19 11:25 Matrix: Water Date Received: 11/14/19 13:09 Batch Batch Dil Initial Final Batch Prepared Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab Total/NA Analysis 8260B 1 5 mL 5 mL 467229 11/23/19 17:14 RS TAL PEN Total/NA Prep 3520C 260 mL 250 uL 298854 11/20/19 12:00 BJT TAL PIT Total/NA Analysis 8270E LL 1 1 mL 1 mL 299477 11/26/19 17:23 VVP TAL PIT Total/NA Prep 3010A 50 mL 50 mL 466168 11/15/19 15:49 KWN TAL PEN Total/NA Analysis 6010D 1 466345 11/16/19 14:12 AC TAL PEN Total/NA Analysis SM 2320B 1 466839 11/20/19 15:00 MAF TAL PEN Total/NA Analysis SM 3500 FE B 1 10 mL 10 mL 466637 11/19/19 17:14 JAT TAL PEN Client Sample ID: TRC-2SR Lab Sample ID: 400-179567-2 Date Collected: 11/13/19 12:35 Matrix: Water Date Received: 11/14/19 13:09 Batch Batch Dil Initial Final Batch Prepared Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab Total/NA Analysis 8260B 1 5 mL 5 mL 467229 11/23/19 17:42 RS TAL PEN Total/NA Prep 3520C 220 mL 250 uL 298854 11/20/19 12:00 BJT TAL PIT Total/NA Analysis 8270E LL 1 1 mL 1 mL 299477 11/26/19 17:50 VVP TAL PIT Total/NA Prep 3010A 50 mL 50 mL 466168 11/15/19 15:49 KWN TAL PEN Total/NA Analysis 6010D 1 466345 11/16/19 14:40 AC TAL PEN Total/NA Analysis SM 2320B 1 466839 11/20/19 15:00 MAF TAL PEN Total/NA Analysis SM 3500 FE B 5 10 mL 10 mL 466637 11/19/19 17:28 JAT TAL PEN Client Sample ID: TRC-4 Lab Sample ID: 400-179567-3 Date Collected: 11/13/19 08:35 Matrix: Water Date Received: 11/14/19 13:09 Batch Batch Dil Initial Final Batch Prepared Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab Total/NA Analysis 8260B 10 5 mL 5 mL 467229 11/23/19 19:34 RS TAL PEN Total/NA Prep 3520C 270 mL 250 uL 298854 11/20/19 12:00 BJT TAL PIT Total/NA Analysis 8270E LL 1 1 mL 1 mL 299477 11/26/19 18:16 VVP TAL PIT Total/NA Prep 3520C DL 270 mL 250 uL 298854 11/20/19 12:00 BJT TAL PIT Total/NA Analysis 8270E LL DL 50 1 mL 1 mL 299702 11/27/19 15:13 VVP TAL PIT Total/NA Prep 3010A 50 mL 50 mL 466168 11/15/19 15:49 KWN TAL PEN Total/NA Analysis 6010D 1 466345 11/16/19 14:44 AC TAL PEN Total/NA Analysis SM 2320B 1 466839 11/20/19 15:00 MAF TAL PEN Total/NA Analysis SM 3500 FE B 5 10 mL 10 mL 466637 11/19/19 17:28 JAT TAL PEN Client Sample ID: TRC-413 Lab Sample ID: 400-179567-4 Date Collected: 11/13/19 09:25 Matrix: Water Date Received: 11/14/19 13:09 Batch Batch Dil Initial Final Batch Prepared Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab Total/NA Analysis 8260B 1 5 mL 5 mL 467229 11/23/19 18:10 RS TAL PEN Total/NA Prep 3520C 260 mL 250 uL 298854 11/20/19 12:00 BJT TAL PIT Total/NA Analysis 8270E LL 1 1 mL 1 mL 299477 11/26/19 18:43 VVP TAL PIT Eurofins TestAmerica, Pensacola Page 29 of 40 11 /29/2019 Lab Chronicle Client: Hart & Hickman, PC Job ID: 400-179567-1 Project/Site: Former Raleigh #MGP Site SDG: SCA-008 Client Sample ID: TRC-4D Lab Sample ID: 400-179567-4 Date Collected: 11/13/19 09:25 Matrix: Water Date Received: 11/14/19 13:09 Batch Batch Dil Initial Final Batch Prepared Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab Total/NA Prep 3520C DL 260 mL 250 uL 298854 11/20/19 12:00 BJT TAL PIT Total/NA Analysis 8270E LL DL 5 1 mL 1 mL 299702 11/27/19 15:40 VVP TAL PIT Total/NA Prep 3010A 50 mL 50 mL 466168 11/15/19 15:49 KWN TAL PEN Total/NA Analysis 6010D 1 466345 11/16/19 14:47 AC TAL PEN Total/NA Analysis SM 2320B 1 466839 11/20/19 15:00 MAF TAL PEN Total/NA Analysis SM 3500 FE B 1 10 mL 10 mL 466637 11/19/19 17:21 JAT TAL PEN Client Sample ID: TRC-9 Lab Sample ID: 400-179567-5 C Date Collected: 11/13/19 14:55 Matrix: Water Date Received: 11/14/19 13:09 Batch Batch Dil Initial Final Batch Prepared Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab Total/NA Prep 3010A 50 mL 50 mL 466168 11/15/19 15:49 KWN TAL PEN Total/NA Analysis 6010D 1 466345 11/16/19 14:51 AC TAL PEN Total/NA Analysis SM 2320B 1 466839 11/20/19 15:00 MAF TAL PEN Total/NA Analysis SM 3500 FE B 1 10 mL 10 mL 466637 11/19/19 17:21 JAT TAL PEN Client Sample ID: TRC-12 Lab Sample ID: 400-179567-6 Date Collected: 11/13/19 13:45 Matrix: Water Date Received: 11/14/19 13:09 Batch Batch Dil Initial Final Batch Prepared Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab Total/NA Analysis 8260B 1 5 mL 5 mL 467229 11/23/19 18:38 RS TAL PEN Total/NA Prep 3520C 260 mL 250 uL 298854 11/20/19 12:00 BJT TAL PIT Total/NA Analysis 8270E LL 1 1 mL 1 mL 299477 11/26/19 19:10 VVP TAL PIT Total/NA Prep 3010A 50 mL 50 mL 466168 11/15/19 15:49 KWN TAL PEN Total/NA Analysis 6010D 1 466345 11/16/19 14:55 AC TAL PEN Total/NA Analysis SM 2320B 1 466839 11/20/19 15:00 MAF TAL PEN Total/NA Analysis SM 3500 FE B 1 10 mL 10 mL 466637 11/19/19 17:21 JAT TAL PEN Client Sample ID: TRC-13 Lab Sample ID: 400-179567-7 Date Collected: 11/13/19 10:20 Matrix: Water Date Received: 11/14/19 13:09 Prep Type Batch Type Batch Method Dil Run Factor Initial Amount Final Amount Batch Number Prepared or Analyzed Analyst Lab Total/NA Analysis 8260B 1 5 mL 5 mL 467229 11/23/19 19:06 RS TAL PEN Total/NA Prep 3520C 270 mL 250 uL 298854 11/20/19 12:03 BJT TAL PIT Total/NA Analysis 8270E LL 1 1 mL 1 mL 299477 11/26/19 19:37 VVP TAL PIT Total/NA Prep 3520C DL 270 mL 250 uL 298854 11/20/19 12:03 BJT TAL PIT Total/NA Analysis 8270E LL DL 5 1 mL 1 mL 299702 11/27/19 16:07 VVP TAL PIT Total/NA Prep 3010A 50 mL 50 mL 466168 11/15/19 15:49 KWN TAL PEN Total/NA Analysis 6010D 1 466345 11/16/19 14:58 AC TAL PEN Total/NA Analysis SM 2320B 1 466839 11/20/19 15:00 MAF TAL PEN Total/NA Analysis SM 3500 FE B 5 10 mL 10 mL 466637 11/19/19 17:35 JAT TAL PEN Eurofins TestAmerica, Pensacola Page 30 of 40 11 /29/2019 Lab Chronicle Client: Hart & Hickman, PC Project/Site: Former Raleigh #MGP Site Client Sample ID: EB-1 Date Collected: 11/13/19 15:15 Date Received: 11/14/19 13:09 Job ID: 400-179567-1 SDG: SCA-008 Lab Sample ID: 400-179567-8 Matrix: Water F Batch Batch Dil Initial Final Batch Prepared Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab Total/NA Analysis 8260B 1 5 mL 5 mL 467229 11/23/19 13:57 RS TAL PEN Total/NA Prep 3520C 260 mL 250 uL 298854 11/20/19 12:03 BJT TAL PIT Total/NA Analysis 8270E LL 1 1 mL 1 mL 299477 11/26/19 20:04 WP TAL PIT Client Sample ID: TRIP BLANK Lab Sample ID: 400-179567-9 Date Collected: 11/13/19 00:00 Matrix: Water Date Received: 11/14/19 13:09 Batch Batch Dil Initial Final Batch Prepared C Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab Total/NA Analysis 8260B 1 5 mL 5 mL 467229 11/23/19 14:25 RS TAL PEN Client Sample ID: Method Blank Lab Sample ID: MB 180-298854/1-A m Date Collected: N/A Matrix: Water Date Received: N/A Batch Batch Dil Initial Final Batch Prepared Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab Total/NA Prep 3520C 250 mL 250 uL 298854 11/20/19 12:00 BJT TAL PIT Total/NA Analysis 8270E LL 1 1 mL 1 mL 299477 11/26/19 09:45 WP TAL PIT Client Sample ID: Method Blank Date Collected: N/A Date Received: N/A Batch Batch Prep Type Type Method Run Total/NA Prep 3010A Total/NA Analysis 6010D Client Sample ID: Method Blank Date Collected: N/A Date Received: N/A Lab Sample ID: MB 400-466168/1-A Matrix: Water Dil Initial Final Batch Prepared Factor Amount Amount Number or Analyzed Analyst Lab 50 mL 50 mL 466168 11/15/19 15:49 KWN TAL PEN 1 466345 11/16/19 14:05 AC TAL PEN Lab Sample ID: MB 400-466637/6 Matrix: Water Batch Prep Type Type Batch Method Dil Run Factor Initial Amount Final Amount Batch Number Prepared or Analyzed Analyst Lab Total/NA Analysis SM 3500 FE B 1 10 mL TOmL 466637 11/19/19 17:14 JAT TAL PEN Client Sample ID: Method Blank Lab Sample ID: MB 400-466839/2 Date Collected: N/A Matrix: Water Date Received: N/A Batch Batch Dil Initial Final Batch Prepared Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab Total/NA Analysis SM 2320B 1 466839 11/20/19 15:00 MAF TAL PEN Page 31 of 40 Eurofins TestAmerica, Pensacola 11 /29/2019 Lab Chronicle Client: Hart & Hickman, PC Project/Site: Former Raleigh #MGP Site Client Sample ID: Method Blank Date Collected: N/A Date Received: N/A F Batch Batch Prep Type Type Method Total/NA Analysis 8260B Job ID: 400-179567-1 SDG: SCA-008 Lab Sample ID: MB 400-467229/4 Matrix: Water Dil Initial Final Batch Prepared Run Factor Amount Amount Number or Analyzed Analyst Lab 1 5 mL 5 mL 467229 11/23/19 11:08 RS TAL PEN Client Sample ID: Lab Control Sample Date Collected: N/A Date Received: N/A Batch Batch Prep Type Type Method Run Total/NA Prep 3520C Total/NA Analysis 8270E LL Client Sample ID: Lab Control Sample Date Collected: N/A Date Received: N/A Batch Batch Prep Type Type Method Run Total/NA Prep 3010A Total/NA Analysis 6010D Client Sample ID: Lab Control Sample Date Collected: N/A Date Received: N/A Lab Sample ID: LCS 180-298854/2-A Matrix: Water Dil Initial Final Batch Prepared C Factor Amount Amount Number or Analyzed Analyst Lab 250 mL 250 uL 298854 11/20/19 12:00 BJT TAL PIT 1 1 mL 1 mL 299477 11/26/19 10:11 WP TAL PIT Lab Sample ID: LCS 400-466168/2-A Matrix: Water m Dil Initial Final Batch Prepared Factor Amount Amount Number or Analyzed Analyst Lab 50 mL 50 mL 466168 11/15/19 15:49 KWN TAL PEN 1 466345 11/16/19 14:08 AC TAL PEN Lab Sample ID: LCS 400-466637/7 M Matrix: Water in Batch Batch Dil Initial Final Batch Prepared Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Total/NA Analysis SM 3500 FE B 1 10 mL 10 mL 466637 11/19/19 17:14 JAT Client Sample ID: Lab Control Sample Date Collected: N/A Date Received: N/A 1 �k Lab Sample ID: LCS 400-466839/3 Matrix: Water Batch Batch Dil Initial Final Batch Prepared Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab Total/NA Analysis SM 2320B 1 4 66839 11/20/19 15:00 MAF TAL PEN Client Sample ID: Lab Control Sample Lab Sample ID: LCS 400-467229/1002 Date Collected: N/A Matrix: Water Date Received: N/A Batch Batch Dil Initial Final Batch Prepared Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab Total/NA Analysis 8260B 1 5 mL 5 mL 467229 11/23/19 10:03 RS TAL PEN Client Sample ID: Lab Control Sample Lab Sample ID: MRL 400-466637/3 Date Collected: N/A Matrix: Water Date Received: N/A Batch Batch Dil Initial Final Batch Prepared Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab Total/NA Analysis SM 3500 FE B 1 10 mL 10 mL 466637 11/19/19 17:14 JAT TAL PEN Eurofins TestAmerica, Pensacola Page 32 of 40 11 /29/2019 Lab Chronicle Client: Hart & Hickman, PC Job ID: 400-179567-1 Project/Site: Former Raleigh #MGP Site SDG: SCA-008 Client Sample ID: TRC-2DR Lab Sample ID: 400-179567-1 MS Date Collected: 11/13/19 11:25 Matrix: Water Date Received: 11/14/19 13:09 Batch Batch Dil Initial Final Batch Prepared Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab Total/NA Prep 3010A 50 mL 50 mL 466168 11/15/19 15:49 KWN TAL PEN Total/NA Analysis 6010D 1 466345 11/16/19 14:33 AC TAL PEN Total/NA Analysis SM 3500 FE B 1 10 mL 10 mL 466637 11/19/19 17:14 JAT TAL PEN Total/NA Analysis SM 3500 FE B 5 10 mL 10 mL 466637 11/19/19 17:28 JAT TAL PEN Client Sample ID: TRC-2DR Lab Sample ID: 400-179567-1 MSD C Date Collected: 11/13/19 11:25 Matrix: Water Date Received: 11/14/19 13:09 Batch Batch Dil Initial Final Batch Prepared Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab Total/NA Prep 3010A 50 mL 50 mL 466168 11/15/19 15:49 KWN TAL PEN Total/NA Analysis 6010D 1 466345 11/16/19 14:37 AC TAL PEN m Total/NA Analysis SM 3500 FE B 1 10 mL 10 mL 466637 11/19/19 17:14 JAT TAL PEN Total/NA Analysis SM 3500 FE B 5 10 mL 10 mL 466637 11/19/19 17:28 JAT TAL PEN Laboratory References: TAL PEN = Eurofins TestAmerica, Pensacola, 3355 McLemore Drive, Pensacola, FL 32514, TEL (850)474-1001 TAL PIT = Eurofins TestAmerica, Pittsburgh, 301 Alpha Drive, RIDC Park, Pittsburgh, PA 15238, TEL (412)963-7058 Eurofins TestAmerica, Pensacola Page 33 of 40 11 /29/2019 Method Summary Client: Hart & Hickman, PC Job ID: 400-179567-1 Project/Site: Former Raleigh #MGP Site SDG: SCA-008 Method Method Description Protocol Laboratory 8260B Volatile Organic Compounds (GC/MS) SW846 TAL PEN 8270E LL Semivolatile Organic Compounds by GC/MS - Low Level SW846 TAL PIT 6010D Metals (ICP) SW846 TAL PEN SM 2320B Alkalinity SM TAL PEN SM 3500 FE B Iron, Ferrous and Ferric SM TAL PEN 3010A Preparation, Total Metals SW846 TAL PEN 3520C Liquid -Liquid Extraction (Continuous) SW846 TAL PIT 5030B Purge and Trap SW846 TAL PEN Protocol References: SM = "Standard Methods For The Examination Of Water And Wastewater" SW846 ='Test Methods For Evaluating Solid Waste, Physical/Chemical Methods", Third Edition, November 1986 And Its Updates. Laboratory References: TAL PEN = Eurofins TestAmerica, Pensacola, 3355 McLemore Drive, Pensacola, FL 32514, TEL (850)474-1001 TAL PIT = Eurofins TestAmerica, Pittsburgh, 301 Alpha Drive, RIDC Park, Pittsburgh, PA 15238, TEL (412)963-7058 Eurofins TestAmerica, Pensacola Page 34 of 40 11 /29/2019 Accreditation/Certification Summary Client: Hart & Hickman, PC Job ID: 400-179567-1 Project/Site: Former Raleigh #MGP Site SDG: SCA-008 Laboratory: Eurofins TestAmerica, Pensacola Unless otherwise noted, all analytes for this laboratory were covered under each accreditation/certification below. Authority Program Identification Number Expiration Date North Carolina (WW/SW) State Program 314 12-31-19 The following analytes are included in this report, but the laboratory is not certified by the governing authority. This list may include analytes for which the agency does not offer certification. Analysis Method Prep Method Matrix Analyte 8260B Water Benzene 8260B Water Ethylbenzene 8260B Water Toluene 8260B Water Xylenes, Total SM 3500 FE B Water Ferrous Iron Laboratory: Eurofins TestAmerica, Pittsburgh All accreditations/certifications held by this laboratory are listed. Not all accreditations/certifications are applicable to this report. Authority Program Identification Number Expiration Date Arkansas DEQ State 19-033-0 06-27-20 California State 2891 04-30-20 Connecticut State PH-0688 09-30-20 Florida NELAP E871008 06-30-20 Georgia State PA 02-00416 04-30-20 Illinois NELAP 004375 06-30-20 Kansas NELAP E-10350 03-31-20 Kentucky (UST) State 162013 04-30-20 Kentucky (WW) State KY98043 12-31-19 Louisiana NELAP 04041 06-30-20 Minnesota NELAP 042-999-482 12-31-19 Nevada State PA00164 07-31-20 New Hampshire NELAP 2030 04-04-20 New Jersey NELAP PA005 06-30-20 New York NELAP 11182 04-01-20 North Carolina (WW/SW) State 434 12-31-19 North Dakota State R-227 04-30-20 Oregon NELAP PA-2151 02-06-20 Pennsylvania NELAP 02-00416 04-30-20 Rhode Island State LA000362 12-30-19 South Carolina State 89014 04-30-20 Texas NELAP T104704528 03-31-20 US Fish & Wildlife US Federal Programs 058448 07-31-20 USDA Federal P-Soil-01 06-26-22 USDA US Federal Programs P330-16-00211 06-26-22 Utah NELAP PA001462019-8 05-31-20 Virginia NELAP 10043 09-15-20 West Virginia DEP State 142 01-31-20 Wisconsin State 998027800 08-31-20 Eurofins TestAmerica, Pensacola Page 35 of 40 11 /29/2019 LO L.i i N U O U m �♦ o 0 v, U O El U o ❑ `- A V \ 0 O _C 7 ct c V y .. x Q Mi s L. 1� O cc %O r4 9-4 j41 cc .4 N `' + fa V ON1 mm C, 40 n .V W f- C j cc N tom.+y Cl. f N i U � O _ 1 O C) « O a E `o G m u� W e p U o o Z C7 m m o WE o Z ❑ a E a E a V E \ Z O C cEa J ❑ d H F- io H O E c a) io m C � o \ u m < \ In a E U C m C m G m V M — w o E a E a E d \ N � \N y al - y In In O m Ic m a � � T rn O E d XS lu O m nj �JJa X '� x '� U �Vyw >' �< H N� �? d !�L� x x u a a) 0 E n x�- U U Of of ( N / k OSW / SW Wiop3d (N I ) aldweg pajallij O C� a) ?'r- '- m a) to- p -j '1 0 a E E E a x ._3 m cc m f" y C •c 1 3 °'� l- Ea O .l ..3� E m v v 3 v !n u 0 O 7 0 N t m F v fl L-n I �. a O m m < cc cn - <3- - - - C ,' C ¢ ¢ zZ - _Cyr t0 W ¢ H a) x c' C I m J _ m 10 w N E E E m Cl, a ri N m J z a _ ° v m E � in y �s v N m vm ^ E E o Z r � � - O N a) w � (j o U Y J = O 0 06 r c O x u M a) N N 0 v u r) s w U m = y E ' O - .0 r� ? .�- -� � /� n ry a- O C W o-1 E LL 7 _' U y� Z 4=l A C� r m y :2 o c 0 c rS L o`er x m�� `°�`3� E ri u , 4r c o a ca) x E � m U) �, o, a QID O NT m A al w C O N to _n T C: u m ✓1 a c E z ° Q Q a o� ,L CO o �o Pa e3 of40 to a) U �w C C 1 C 9/019 O ¢_ t� a m � a in a aao¢U❑y • s r r ,� .C�"n�9•C h9 a TRIbii J {' IA oC ~Uncorrected `temp Thermometer ID --Lb CF U - Initials _ PT_WI-SR-W effective 1118/18 ., ,,.�.��, � ��►,r�� rnn-t� I.��t �l.11 l 11 IIII Page 37 of 40 O U d M O O U lC N IL 00 v U L0 ` oD X E m LL � v ❑` N r0 � M d J O LL � J Lo y. U O CO 0 2 tmn c O W M a a- E m O Z o E og r E OQONOOO O N� C ON N N O c OF '` 'z \ C C Z a U S t S o O w Q 2 Q Z a Z Z Z S H a a 0 �zoaoaw�»3ni E ? N A L E t 'o O E O v O O O D V m acm�V1 C > C - L0 UO On2t =oo oto dw e $ I iE SNZEa` ZO Ci c O o 0cc , `m UO wa' o w> (` siou!e;uoo;o jagwnN 1e401 x N N N N N N N C m C U o E E D � W d d p ai o o H c E E E IZ E a w _ c O a E n m d fq i E E O O O e U C o. IIn J o O O • I m a m O C a E E9 y E . C) h L i Z CQto ELO o t W �I ol m 5 O •T o2E E o v V c d \ O c m m L Q N U v d C Q U E U c o o a o U �z w °) o f y d m d E d o cC0 @ o Uo OLIO SHVd llIAlOZ/ll90M X X X X X Xo oo m a YE (ON LO sal.) OSW/SW wi0yad E 5 cn U E c a (ON Lo sa),) oldweS paia3l!zl pla!=l a E o a 3H F C 3g a o a y E(` ``,, n o a o o n E rn o. o`�U U U L) 76 N n m m 4) o Gd CL E t`0 0 N `maT N m U) o a 0-Si E � U E d o E N G .XL, NO E � �Ln Ec n E- C V° E a (En m ca W W � W m W�USW�W m YU T 3 0 D O E m m o a m T Q) a1 O) O O) O) C .E m m > N 1 m 0 w ❑ E ^' N a � to ik � iE a mO cc E $ Eo d E E i a `v0 O m N am w E o « « c m y d o - a m - � . i. E �m m _ c E 0 c E o d o 0 0 s E 10 d m U J o V p o .. '..' Z X d L N C ll m J .0 a o U N cco U (00 G „«- E « C > p N 10 y m O = y 3 c d C0 d oyv C m _ U to U O) U N ... E ., I N ❑ !n t� r _ cD r v E y C O -0 y .. U O m _N U C O in in O O O y. m w o a N E a C O R o rn 0)r m � m m o u a � y Z a W C .? N Q m J CO U N > ❑ m L CO H )U t mCD N E .� y O V O O 00 O � O a T 00' `` c C. m c« E .o m = N y E N a C .. n w .. a t r n d m (n y -O } ♦+ c 0) o C U �. E G E a 7 ri N n M (O Z( E - ❑ N fn N 'Q ❑ V N co r .o N r a C m U) Y 2 w w Q w rJ • d a n d¢ N_ ;, E E U U U U 2' U U 0_ T Ol w o vi o O C .> N a E c m v Cj UC) °1 t o N UI- a 0 aM Z` UO « a y0_ t av E w o o aLL °; Co m (N Q' H G: F - f- H W 0 9 m z o� 4 ❑ ❑ W ¢ a Page 38 of 40 11 /29/2019 Login Sample Receipt Checklist Client: Hart & Hickman, PC Login Number: 179567 List Number: 1 Creator: Brown, Nathan Question Job Number: 400-179567-1 SDG Number: SCA-008 List Source: Eurofins TestAmerica, Pensacola Answer Comment Radioactivity wasn't checked or is </= background as measured by a survey N/A meter. The cooler's custody seal, if present, is intact. True Sample custody seals, if present, are intact. N/A The cooler or samples do not appear to have been compromised or True tampered with. Samples were received on ice. True Cooler Temperature is acceptable. True Cooler Temperature is recorded. True 1.1 °C, 1.1 °C IR7 COC is present. True COC is filled out in ink and legible. True COC is filled out with all pertinent information. True Is the Field Sampler's name present on COC? True There are no discrepancies between the containers received and the COC. True Samples are received within Holding Time (excluding tests with immediate True HTs) Sample containers have legible labels. True Containers are not broken or leaking. True Sample collection date/times are provided. True Appropriate sample containers are used. True Sample bottles are completely filled. True Sample Preservation Verified. True There is sufficient vol. for all requested analyses, incl. any requested True MS/MSDs Containers requiring zero headspace have no headspace or bubble is N/A <6mm (1/4"). Multiphasic samples are not present. True Samples do not require splitting or compositing. True Residual Chlorine Checked. N/A Eurofins TestAmerica, Pensacola Page 39 of 40 11 /29/2019 Login Sample Receipt Checklist Client: Hart & Hickman, PC Login Number: 179567 List Number: 2 Creator: Watson, Debbie Question Answer Job Number: 400-179567-1 SDG Number: SCA-008 List Source: Eurofins TestAmerica, Pittsburgh List Creation: 11/16/19 04:51 PM Comment Radioactivity wasn't checked or is </= background as measured by a survey N/A meter. The cooler's custody seal, if present, is intact. True Sample custody seals, if present, are intact. True The cooler or samples do not appear to have been compromised or True tampered with. Samples were received on ice. True Cooler Temperature is acceptable. True Cooler Temperature is recorded. True COC is present. True COC is filled out in ink and legible. True COC is filled out with all pertinent information. True Is the Field Sampler's name present on COC? N/A There are no discrepancies between the containers received and the COC. True Samples are received within Holding Time (excluding tests with immediate True HTs) Sample containers have legible labels. True Containers are not broken or leaking. True Sample collection date/times are provided. True Appropriate sample containers are used. True Sample bottles are completely filled. True Sample Preservation Verified. True There is sufficient vol. for all requested analyses, incl. any requested True MS/MSDs Containers requiring zero headspace have no headspace or bubble is True <6mm (1/4"). Multiphasic samples are not present. True Samples do not require splitting or compositing. True Residual Chlorine Checked. N/A Eurofins TestAmerica, Pensacola Page 40 of 40 11 /29/2019 urofins � Environment Testing TestAmerica ANALYTICAL REPORT C Eurofins TestAmerica, Savannah 5102 LaRoche Avenue Savannah, GA 31404 Tel: (912)354-7858 Laboratory Job ID: 680-176858-1 Laboratory Sample Delivery Group: SCA-008 Client Project/Site: Former Raleigh # MGP Site Hart & Hickman, PC 3921 Sunset Ridge Rd Suite 301 Raleigh, North Carolina 27607 Attn: Patrick Stevens 4_4_9� 4% � Authorized for release by: 1112012019 4.25:32 PM Ken Hayes, Project Manager II (615)301-5035 ken.hayes@testamericainc.com The test results in this report meet all 2003 NELAC and 2009 TNI requirements for accredited parameters, exceptions are noted in this report. This report may not be reproduced except in full, and with written approval from the laboratory. For questions please contact the Project Manager at the e-mail address or telephone number listed on this page. This report has been electronically signed and authorized by the signatory. Electronic signature is intended to be the legally binding equivalent of a traditionally handwritten signature. Results relate only to the items tested and the sample(s) as received by the laboratory. Definitions/Glossary Client: Hart & Hickman, PC Project/Site: Former Raleigh # MGP Site Glossary Abbreviation These commonly used abbreviations may or may not be present in this report. a Listed under the "D" column to designate that the result is reported on a dry weight basis %R Percent Recovery CFL Contains Free Liquid CNF Contains No Free Liquid DER Duplicate Error Ratio (normalized absolute difference) Dil Fac Dilution Factor DL Detection Limit (DoD/DOE) DL, RA, RE, IN Indicates a Dilution, Re -analysis, Re -extraction, or additional Initial metals/anion analysis of the sample DLC Decision Level Concentration (Radiochemistry) EDL Estimated Detection Limit (Dioxin) LOD Limit of Detection (DoD/DOE) LOQ Limit of Quantitation (DoD/DOE) MDA Minimum Detectable Activity (Radiochemistry) MDC Minimum Detectable Concentration (Radiochemistry) MDL Method Detection Limit ML Minimum Level (Dioxin) NC Not Calculated ND Not Detected at the reporting limit (or MDL or EDL if shown) PQL Practical Quantitation Limit QC Quality Control RER Relative Error Ratio (Radiochemistry) RL Reporting Limit or Requested Limit (Radiochemistry) RPD Relative Percent Difference, a measure of the relative difference between two points TEF Toxicity Equivalent Factor (Dioxin) TEQ Toxicity Equivalent Quotient (Dioxin) F Job ID: 680-176858-1 SDG: SCA-008 Eurofins TestAmerica, Savannah Page 2 of 14 11 /20/2019 Sample Summary Client: Hart & Hickman, PC Project/Site: Former Raleigh # MGP Site Job ID: 680-176858-1 SDG: SCA-008 Lab Sample ID Client Sample ID Matrix Collected Received Asset ID 680-176858-1 TRC-2DR Water 11/13/19 11:25 11/14/19 09:20 680-176858-2 TRC-2SR Water 11/13/19 12:35 11/14/19 09:20 680-176858-3 TRC-4 Water 11/13/19 08:35 11/14/19 09:20 680-176858-4 TRC-4D Water 11/13/19 09:25 11/14/19 09:20 680-176858-5 TRC-9 Water 11/13/19 14:55 11/14/19 09:20 680-176858-6 TRC-12 Water 11/13/19 13:45 11/14/19 09:20 680-176858-7 TRC-13 Water 11/13/19 10:20 11/14/19 09:20 Eurofins TestAmerica, Savannah Page 3 of 14 11 /20/2019 Case Narrative Client: Hart & Hickman, PC Project/Site: Former Raleigh # MGP Site Job ID: 680-176858-1 Laboratory: Eurofins TestAmerica, Savannah Narrative Job ID: 680-176858-1 SDG: SCA-008 0 Job Narrative 680-176858-1 Comments No additional comments. Receipt The samples were received on 11/14/2019 9:20 AM; the samples arrived in good condition, properly preserved and, where required, on ice. The temperature of the cooler at receipt was 3.11 C. HPLC/IC No analytical or quality issues were noted, other than those described in the Definitions/Glossary page. Eurofins TestAmerica, Savannah Page 4 of 14 11 /20/2019 Client Sample Results Client: Hart & Hickman, PC Project/Site: Former Raleigh # MGP Site Client Sample ID: TRC-2DR Date Collected: 11/13/19 11:25 Date Received: 11/14/19 09:20 Method: 9056A - Anions, Ion Chromatography Analyte Result Qualifier Nitrate as N 3.99 Sulfate 42.6 Client Sample ID: TRC-2SR Date Collected: 11/13/19 12:35 Date Received: 11/14/19 09:20 Method: 9056A - Anions, Ion Chromatography Analyte Result Qualifier Nitrate as N ND Sulfate 20.9 Client Sample ID: TRC-4 Date Collected: 11/13/19 08:35 Date Received: 11/14/19 09:20 Method: 9056A - Anions, Ion Chromatography Analyte Result Qualifier Nitrate as N ND Sulfate 54.7 Client Sample ID: TRC-4D Date Collected: 11/13/19 09:25 Date Received: 11/14/19 09:20 Job ID: 680-176858-1 SDG: SCA-008 Lab Sample ID: 680-176858-1 Matrix: Water RL MDL Unit D Prepared Analyzed Dil Fac - - - - B 0.0500 mg/L 11/14/1912:28 1 1.00 mg/L 11/20/19 01:39 1 Lab Sample ID: 680-176858-2 Matrix: Water RL 0.0500 1.00 RL 0.0500 1.00 MDL Unit mg/L mg/L MDL Unit mg/L mg/L D Prepared Analyzed 11/14/19 13:26 11/20/19 02:55 - F Dil Fac F 1 1 Lab Sample ID: 680-176858-3 Matrix: Water D Prepared Analyzed Dil Fac 11/14/19 13:43 1 11/20/19 03:08 1 Lab Sample ID: 680-176858-4 Matrix: Water Method: 9056A - Anions, Ion Chromatography Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Nitrate as N ND 0.0500 mg/L 11/14/19 13:58 1 Sulfate 2.31 1.00 mg/L 11/20/19 03:21 1 Client Sample ID: TRC-9 Date Collected: 11/13/19 14:55 Date Received: 11/14/19 09:20 Method: 9056A - Anions, Ion Chromatography Analyte Result Qualifier RL Nitrate as N 2.79 0.0500 Sulfate 39.6 1.00 Client Sample ID: TRC-12 Date Collected: 11/13/19 13:45 Date Received: 11/14/19 09:20 Method: 9056A - Anions, Ion Chromatography Analyte Result Qualifier RL Nitrate as N 7.02 0.250 Sulfate 200 1.00 Lab Sample ID: 680-176858-5 Matrix: Water MDL Unit D Prepared Analyzed Dil Fac mg/L 11/14/19 14:13 1 mg/L 11/20/19 03:33 1 Lab Sample ID: 680-176858-6 Matrix: Water MDL Unit D Prepared Analyzed Dil Fac mg/L 11/14/1914:28 5 mg/L 11/20/19 03:46 1 Eurofins TestAmerica, Savannah Page 5 of 14 11 /20/2019 Client Sample Results Client: Hart & Hickman, PC Project/Site: Former Raleigh # MGP Site F Job ID: 680-176858-1 SDG: SCA-008 Client Sample ID: TRC-13 Lab Sample ID: 680-176858-7 Date Collected: 11/13/19 10:20 Matrix: Water Date Received: 11/14/19 09:20 Method: 9056A - Anions, Ion Chromatography Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Nitrate as N ND 0.0500 mg/L 11/14/19 14:43 1 Sulfate 30.1 1.00 mg/L 11/20/19 03:59 1 Eurofins TestAmerica, Savannah Page 6 of 14 11 /20/2019 QC Sample Results Client: Hart & Hickman, PC Project/Site: Former Raleigh # MGP Site Method: 9056A - Anions, Ion Chromatography Lab Sample ID: MB 680-596197/2 Matrix: Water Analysis Batch: 596197 MB MB Analyte Result Qualifier Nitrate as N ND Lab Sample ID: LCS 680-596197/3 Matrix: Water Analysis Batch: 596197 Analyte Nitrate as N Lab Sample ID: LCSD 680-59619714 Matrix: Water Analysis Batch: 596197 Analyte Nitrate as N Lab Sample ID: 680-176858-1 MS Matrix: Water Analysis Batch: 596197 Sample Sample Analyte Result Qualifier Nitrate as N 3.99 Lab Sample ID: 680-176858-1 MSD Matrix: Water Analysis Batch: 596197 Sample Sample Analyte Result Qualifier Nitrate as N 3.99 Lab Sample ID: MB 680-596980/33 Matrix: Water Analysis Batch: 596980 Spike Added 0.999 Spike Added 0.999 Spike Added 0.999 Spike Added 0.999 RL 0.0500 MB MB Analyte Result Qualifier RL Sulfate ND 1.00 Lab Sample ID: LCS 680-596980/34 Matrix: Water Analysis Batch: 596980 Analyte Sulfate Lab Sample ID: LCSD 680-596980135 Matrix: Water Analysis Batch: 596980 Analyte Sulfate Job ID: 680-176858-1 SDG: SCA-008 Client Sample ID: Method Blank Prep Type: Total/NA MDL Unit D Prepared Analyzed Dil Fac mg/L 11/14/19 09:43 1 Client Sample ID: Lab Control Sample Prep Type: Total/NA LCS LCS %Rec. Result Qualifier Unit D %Rec Limits 0.9478 mg/L 95 90 -110 Client Sample ID: Lab Control Sample Dup Prep Type: Total/NA LCSD LCSD %Rec. RPD Result Qualifier Unit D %Rec Limits RPD Limit 0.9531 mg/L 95 90 -110 1 15 Client Sample ID: TRC-2DR Prep Type: Total/NA MS MS %Rec. Result Qualifier Unit D %Rec Limits 5.059 mg/L 107 80 -120 Client Sample ID: TRC-2DR Prep Type: Total/NA MSD MSD %Rec. RPD Result Qualifier Unit D %Rec Limits RPD Limit 5.062 mg/L 108 80 -120 0 15 Client Sample ID: Method Blank Prep Type: Total/NA MDL Unit D Prepared Analyzed Dil Fac mg/L 11/19/19 22:42 1 Client Sample ID: Lab Control Sample Prep Type: Total/NA Spike LCS LCS %Rec. Added Result Qualifier Unit D %Rec Limits 10.0 10.38 mg/L 104 90 -110 Client Sample ID: Lab Control Sample Dup Prep Type: Total/NA Spike LCSD LCSD %Rec. RPD Added Result Qualifier Unit D %Rec Limits RPD Limit 10.0 10.42 mg/L 104 90 -110 0 15 Page 7 of 14 Eurofins TestAmerica, Savannah 11 /20/2019 QC Association Summary Client: Hart & Hickman, PC Job ID: 680-176858-1 Project/Site: Former Raleigh # MGP Site SDG: SCA-008 HPLC/IC Analysis Batch: 596197 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 680-176858-1 TRC-2DR Total/NA Water 9056A 680-176858-2 TRC-2SR Total/NA Water 9056A 680-176858-3 TRC-4 Total/NA Water 9056A 680-176858-4 TRC-4D Total/NA Water 9056A 680-176858-5 TRC-9 Total/NA Water 9056A 680-176858-6 TRC-12 Total/NA Water 9056A 680-176858-7 TRC-13 Total/NA Water 9056A MB 680-596197/2 Method Blank Total/NA Water 9056A LCS 680-596197/3 Lab Control Sample Total/NA Water 9056A LCSD 680-596197/4 Lab Control Sample Dup Total/NA Water 9056A 680-176858-1 MS TRC-2DR Total/NA Water 9056A 680-176858-1 MSD TRC-2DR Total/NA Water 9056A Analysis Batch: 596980 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 680-176858-1 TRC-2DR Total/NA Water 9056A 680-176858-2 TRC-2SR Total/NA Water 9056A 680-176858-3 TRC-4 Total/NA Water 9056A 680-176858-4 TRC-4D Total/NA Water 9056A 680-176858-5 TRC-9 Total/NA Water 9056A 680-176858-6 TRC-12 Total/NA Water 9056A 680-176858-7 TRC-13 Total/NA Water 9056A MB 680-596980/33 Method Blank Total/NA Water 9056A LCS 680-596980/34 Lab Control Sample Total/NA Water 9056A LCSD 680-596980/35 Lab Control Sample Dup Total/NA Water 9056A Eurofins TestAmerica, Savannah Page 8 of 14 11 /20/2019 Lab Chronicle Client: Hart & Hickman, PC Job ID: 680-176858-1 Project/Site: Former Raleigh # MGP Site SDG: SCA-008 Client Sample ID: TRC-2DR Lab Sample ID: 680-176858-1 Date Collected: 11/13/19 11:25 Matrix: Water Date Received: 11/14/19 09:20 Batch Batch Dil Initial Final Batch Prepared Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab Total/NA Analysis 9056A 1 5 mL 5 mL 596980 11/20/19 01:39 UI TAL SAV Instrument ID: CICK Total/NA Analysis 9056A 1 5 mL 5 mL 596197 11/14/19 12:28 EKB TAL SAV Instrument ID: CICL Client Sample ID: TRC-2SR Lab Sample ID: 680-176858-2 ; Date Collected: 11/13/19 12:35 Matrix: Water Date Received: 11/14/19 09:20 Batch Batch Dil Initial Final Batch Prepared Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab Total/NA Analysis 9056A 1 5 mL 5 mL 596980 11/20/19 02:55 UI TAL SAV Instrument ID: CICK Total/NA Analysis 9056A 1 5 mL 5 mL 596197 11/14/19 13:28 EKB TAL SAV Instrument ID: CICL Client Sample ID: TRC-4 Lab Sample ID: 680-176858-3 Date Collected: 11/13/19 08:35 Matrix: Water Date Received: 11/14/19 09:20 Batch Batch Dil Initial Final Batch Prepared Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab Total/NA Analysis 9056A 1 5 mL 5 mL 596980 11/20/19 03:08 UI TAL SAV Instrument ID: CICK Total/NA Analysis 9056A 1 5 mL 5 mL 596197 11/14/19 13:43 EKB TAL SAV Instrument ID: CICL Client Sample ID: TRC-413 Lab Sample ID: 680-176858-4 Date Collected: 11/13/19 09:25 Matrix: Water Date Received: 11/14/19 09:20 Batch Batch Dil Initial Final Batch Prepared Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab Total/NA Analysis 9056A 1 5 mL 5 mL 596980 11/20/19 03:21 UI TAL SAV Instrument ID: CICK Total/NA Analysis 9056A 1 5 mL 5 mL 596197 11/14/19 13:58 EKB TAL SAV Instrument ID: CICL Client Sample ID: TRC-9 Lab Sample ID: 680-176858-5 Date Collected: 11/13/19 14:55 Matrix: Water Date Received: 11/14/19 09:20 Batch Batch Dil Initial Final Batch Prepared Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab Total/NA Analysis 9056A 1 5 mL 5 mL 596980 11/20/19 03:33 UI TAL SAV Instrument ID: CICK Total/NA Analysis 9056A 1 5 mL 5 mL 596197 11/14/19 14:13 EKB TAL SAV Instrument ID: CICL Eurofins TestAmerica, Savannah Page 9 of 14 11 /20/2019 Lab Chronicle Client: Hart & Hickman, PC Project/Site: Former Raleigh # MGP Site F Job ID: 680-176858-1 SDG: SCA-008 Client Sample ID: TRC-12 Lab Sample ID: 680-176858-6 Date Collected: 11/13/19 13:45 Matrix: Water Date Received: 11/14/19 09:20 Batch Batch Dil Initial Final Batch Prepared Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab Total/NA Analysis 9056A 1 5 mL 5 mL 596980 11/20/19 03:46 UI TAL SAV Instrument ID: CICK Total/NA Analysis 9056A 5 5 mL 5 mL 596197 11/14/19 14:28 EKB TAL SAV Instrument ID: CICL Client Sample ID: TRC-13 Lab Sample ID: 680-176858-7 ; Date Collected: 11/13/19 10:20 Matrix: Water Date Received: 11/14/19 09:20 Batch Batch Dil Initial Final Batch Prepared Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab Total/NA Analysis 9056A 1 5 mL 5 mL 596980 11/20/19 03:59 UI TAL SAV Instrument ID: CICK Total/NA Analysis 9056A 1 5 mL 5 mL 596197 11/14/19 14:43 EKB TAL SAV Instrument ID: CICL Laboratory References: TAL SAV = Eurofins TestAmerica, Savannah, 5102 LaRoche Avenue, Savannah, GA 31404, TEL (912)354-7858 Page 10 of 14 Eurofins TestAmerica, Savannah 11 /20/2019 Accreditation/Certification Summary C Client: Hart & Hickman, PC Job ID: 680-176858-1 Project/Site: Former Raleigh # MGP Site SDG: SCA-008 Laboratory: Eurofins TestAmerica, Savannah The accreditations/certifications listed below are applicable to this report. Authority Program Identification Number Expiration Date North Carolina (WW/SW) State Program 269 12-31-19 Laboratory: Eurofins TestAmerica, Pensacola All accreditations/certifications held by this laboratory are listed. Not all accreditations/certifications are applicable to this report. Authority Program Identification Number Expiration Date Alabama State 40150 07-01-20 ANAB ISO/IEC 17025 L2471 02-22-20 Arizona State AZ0710 01-12-20 Arkansas DEQ State 88-0689 09-01-20 California State 2510 07-01-20 Florida NELAP E81010 06-30-20 Georgia State E81010(FL) 06-30-20 Iowa State 367 08-01-20 Iowa State Program 367 08-01-20 Kansas NELAP E-10253 08-16-20 Kentucky (UST) State 53 06-30-20 Kentucky (UST) State Program 53 06-30-20 Kentucky (WW) State KY98030 12-30-19 Louisiana NELAP 30976 06-30-20 Louisiana NELAP 30976 06-30-20 Louisiana (DW) NELAP LA017 12-31-19 Louisiana (DW) State <cert No.> 12-31-19 Maryland State 233 09-30-20 Massachusetts State M-FL094 06-30-20 Michigan State 9912 05-06-20 Minnesota NELAP 012-999-481 12-31-19 New Jersey NELAP FL006 07-30-20 North Carolina (WW/SW) State 314 12-31-19 North Carolina (WW/SW) State Program 314 12-31-19 Oklahoma State 9810-186 08-31-20 Pennsylvania NELAP 68-00467 01-31-20 Rhode Island State LA000307 12-30-19 Rhode Island State Program LA000307 12-30-19 South Carolina State 96026002 06-30-20 South Carolina State Program 96026 06-30-20 Tennessee State TN02907 06-30-20 Texas NELAP T104704286 09-30-20 US Fish & Wildlife Federal LE058448-0 07-31-20 US Fish & Wildlife US Federal Programs LE058448 06-07-20 USDA Federal P330-18-00148 05-17-21 USDA US Federal Programs P330-18-00148 05-17-21 Virginia NELAP 460166 06-14-20 Washington State C915 05-15-20 West Virginia DEP State 136 06-30-20 E Eurofins TestAmerica, Savannah Page 11 of 14 11 /20/2019 Method Summary Client: Hart & Hickman, PC Project/Site: Former Raleigh # MGP Site Job ID: 680-176858-1 SDG: SCA-008 Method Method Description Protocol Laboratory 9056A Anions, Ion Chromatography SW846 TAL SAV Protocol References: SW846 = "Test Methods For Evaluating Solid Waste, Physical/Chemical Methods", Third Edition, November 1986 And Its Updates. Laboratory References: TAL SAV = Eurofins TestAmerica, Savannah, 5102 LaRoche Avenue, Savannah, GA 31404, TEL (912)354-7858 10 Eurofins TestAmerica, Savannah Page 12 of 14 11 /20/2019 Irr l"n rO rs7 N N N O Uco — �i, r`� it n cc Go {Y -i CV z m 4. n .w P t.0 u 9L. E 2 an 0 a �a Of al U Q o �1 to U u _ r ], 0u p c 0 y ` C [n E 11 c w z E m z o U E 1° ^'�� w f p E E E J z a J Yco ' E m Ewa191 1 0f n Q 7i o u n = M ems*+ Ili N /\ a :1 U U U m ca N n N 10 G Id U N E } rs a � xy ` N u O a E O P R J } c u u � CL w s cn (N a A i asw r SIN w,oP"d ( N ! A) aldweg paja%[!d H c c ar < n a} x O F Z� ) m C o !� OCi II C ne a a O 3 A C =� Iv=� ���� uu o ry U � H ry ry L CL LO m i E r✓1 o= G C _ cn U 4=0 W m a Y DUnF-I Ira ? o c m C m C m m a� b .0 LL 1 CI toa 4�/ a° t f� 7 a O C ) U L) U U ,;i� a z = of - 4 I,. 07ar .q.. m H E E o Z O C U JCIOy C) o- v C E -- .�Ne r C � u ri , j 1 �_ m J-j R = v�oo_ C 1 C j at 6 0cp G m a m 4 .� C o N R d m EN e r y is m n z r�— io = c fl y y y A G N z o N Q a a m v] a' d xr °' y E o °} E - I 1 n c U c c�¢ s z c�aLLaina r m o Q a00 vi a flc m Page 13 of 14 11/20/2019 Login Sample Receipt Checklist Client: Hart & Hickman, PC Login Number: 176858 List Number: 1 Creator: Weston, Pamela Question Job Number: 680-176858-1 SDG Number: SCA-008 List Source: Eurofins TestAmerica, Savannah Answer Comment Radioactivity wasn't checked or is </= background as measured by a survey N/A meter. The cooler's custody seal, if present, is intact. True Sample custody seals, if present, are intact. True The cooler or samples do not appear to have been compromised or True tampered with. Samples were received on ice. True Cooler Temperature is acceptable. True Cooler Temperature is recorded. True COC is present. True COC is filled out in ink and legible. True COC is filled out with all pertinent information. True Is the Field Sampler's name present on COC? True There are no discrepancies between the containers received and the COC. True Samples are received within Holding Time (excluding tests with immediate True HTs) Sample containers have legible labels. True Containers are not broken or leaking. True Sample collection date/times are provided. True Appropriate sample containers are used. True Sample bottles are completely filled. True Sample Preservation Verified. N/A There is sufficient vol. for all requested analyses, incl. any requested True MS/MSDs Containers requiring zero headspace have no headspace or bubble is N/A <6mm (1/4"). Multiphasic samples are not present. True Samples do not require splitting or compositing. True Residual Chlorine Checked. N/A Eurofins TestAmerica, Savannah Page 14 of 14 11 /20/2019 Appendix C Constituent Concentration Trend Graphs 14 hart hickman SMARTER ENVIRONMENTAL SOLUTIONS TRC-4 M3 7,000 am a 5,000 U 3,000 2,000 1,000 0 CO f,- f-- M 00 M M O O N N M M 'IT 'IT LO LO CO CO f- I- 00 M O O O O CDO O U C U C U C U C U C U C U C U C U C U C U C U C U C U 0) N 0) 7 07 N � 0) � N � 0) � 0) � 0 (3) (3) N (3) Date s Benzene Toluene Xylenes (Total) 2-Methylnapthalene * Naphthalene Hart & Hickman, PC TRC-4D 3000 2500 2000 J 3 U 1000 500 0 ' "-'" - CO f,- I,- CO 00 O 0) O O N N M CO � � Lf') U') (fl Cp ti ti Co 00 O 0) O O C?O O O O — — — — — — — — — — — r 0 U C C U C U C U C U C U C U C U C U C U C U C U C U C U Date Benzene 2-Methyl naphthalene Acenaphthene Naphthalene Hart & Hickman, PC 10,000 9,000 8,000 7,000 J 6,000 3 c O 5,000 L C d c 4,000 U I OBC Addition —►I I I I I TRC-5R EHC-0 Addition I I I rn ,11 MIRA 11 CO I� ti 00 00 O O O O r r N N M M t qzt LL7 u7 CO CD I- I- Co Co M O O O O O O O r r r r r r r r r r r r r r r r r r r U C U C U C U C U C U C U C U C U C U C U C U C U C CV 7 CV 7 N 7 (1) 7 (3) 7 CV 7 N 7 W 7 N 7 (3) 7 N 7 N 7 (1) 7 Date Benzene Toluene Ethylbenzene Xylenes (Total) 2-Methyl naphthalene t Naphthalene Hart & Hickman, PC 450 400 350 300 J O1 c 250 0 L = 200 d v c 0 U 150 100 50 I TRC-13 CO rl- rl- M W O M O O r r N N M M 'It M M CO CO r` r­ M M O O O O O O O O O r r r r r r r r r r r r r r r r r r r U C U C U C U C U C U C U C U C U C U C U C U C U C U N 0 0 N N N N N N N N N N N Date sAcenaphthene 2-Methyl naphthalene w Naphthalene S:~-Master Projects\SCANA\SCA.008 - Raleigh Long Term Monitoring\November 2019 Semi -Annual Sampling\Tables\Tables November 2019 Hart & Hickman, PC 292.50 291.00 289.50 288.00 286.50 285.00 r S283.50 C O c 282.00 d w 280.50 279.00 277.50 276.00 274.50 273.00 271.50 270.00 p i c� G Seasonal Groundwater Elevations O N N M M 'tt "t Ln LO CD CO fl- f— M 00 M M Date t TRC-2SR —F TRC-2DR t TRC-4 --40--- TRC-4 D —*--- TRC-5R �o TRC-13 Hart & Hickman, PC