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HomeMy WebLinkAboutMO-4964_16910_CA_MRP_20200318 Groundwater Monitoring Report Southland Oil Company and Oakdale Hardware 1832 and 1836 Oakdale Road Charlotte, Mecklenburg County, North Carolina 28216 NCDENR Incident #16910 and #19678 ATC Project No. SLP1691005 March 18, 2020 Groundwater Monitoring Report March 18, 2020 Southland Oil Company and Oakdale Hardware Incident # 16910/19678 ATC Project No. SLP1691005 TABLE OF CONTENTS 1.0 SITE IDENTIFICATION .......................................................................................1 2.0 EXECUTIVE SUMMARY .....................................................................................3 3.0 SITE DESCRIPTION ..............................................................................................4 3.1 Site Characterization ................................................................................4 3.2 Site Background .......................................................................................4 3.3 Site and Regional Geology ......................................................................5 3.4 Site and Regional Hydrogeology .............................................................5 4.0 GROUNDWATER CHARACTERIZATION.......................................................6 4.1 Groundwater Levels .................................................................................6 4.2 Groundwater Quality ...............................................................................6 5.0 CONCLUSIONS AND RECOMMENDATIONS .................................................8 TABLES Table 1 Water Supply Well Information Table 2 Monitoring Well Construction Details Table 3 Groundwater Elevation Data Table 4 Groundwater Field Parameters Table 5 Current Groundwater Analytical Results Table 6 Historical Groundwater Analytical Results FIGURES Figure 1 Site Location Map Figure 2 Water Supply Well Location Map Figure 3 Site Map Figure 4 Groundwater Elevation Contour Map Figure 5 Contaminants of Concern APPENDICES Appendix A Field Notes Appendix B Laboratory Analytical Report Groundwater Monitoring Report March 18, 2020 Southland Oil Company and Oakdale Hardware Incident # 16910/19678 ATC Project No. SLP1691005 2 3. Information about Release Date Discovered: Southland Oil Company: February 3, 1997 Estimated Quantity of Release: Unknown Cause of Release: Former UST Systems Source of Release (Dispenser/Piping/UST): Unknown Sizes and contents of UST system(s) from which the release occurred: Unknown Criteria Used to Classify Risk: Exceedance of 2L Standards and at least one potable water supply well in use within 250 feet of the source area. Date Discovered: Oakdale Hardware: March 22, 1999 Estimated Quantity of Release: Unknown Cause of Release: Former UST Systems Source of Release (Dispenser/Piping/UST): Unknown Sizes and contents of UST system(s) from which the release occurred: Unknown Criteria Used to Classify Risk: Exceedance of 2L Standards and potable water supply wells within 1,000 feet of the source area. 4. Information about the Monitoring Report Date of Groundwater Monitoring Events: December 19, 2019 5. Certification I, Al Quarles, a Licensed Geologist for ATC Associates of North Carolina, P.C., do certify that the information contained in this report is correct and accurate to the best of my knowledge. ATC Associates of North Carolina, P.C. is licensed to practice engineering and geology in North Carolina. The certification number of the company or corporation is C-1598 for engineering and C-294 for geology. Groundwater Monitoring Report March 18, 2020 Southland Oil Company and Oakdale Hardware Incident # 16910/19678 ATC Project No. SLP1691005 3 2.0 EXECUTIVE SUMMARY ATC Associates of North Carolina, P.C. (ATC) has completed a Groundwater Monitoring Report (GMR) documenting a December 19, 2019, monitoring event the Southland Oil Company and Oakdale Hardware properties, located at 1832 and 1836 Oakdale Road, in Charlotte, Mecklenburg County, North Carolina. The GMR is being performed based on a December 16, 2019, Task Authorizations (TA-05) by the Trust Fund Branch of the Underground Storage Tank (UST) Section, Division of Waste Management, North Carolina Department of Environment and Natural Resources (NCDENR). The work is being performed as part of the State Lead Contract #N17004 between NCDEQ and ATC. Two adjoining properties (Southland Oil Company and Oakdale Hardware) utilized UST systems installed in 1971 and 1976, respectively, which have been permanently closed by removal according to the NCDEQ Registered UST Database. This GMR documents groundwater quality sampling for volatile organic compounds (VOCs), including petroleum constituents, related to the former petroleum release from the UST systems. The approved scope includes the sampling of sixteen monitoring wells (MW-1, 2, 2R, 3, 4, 5, 5R, 6, 6R, 7, 7R, 8, 9, 10, and 11, and DW-1). The findings from the monitoring event indicate the following:  One active water supply well (WSW-100, located at 100 Radio Road) is located within 250 feet of the source area, and two community water supply wells (WSW-1918 and C-WSW, located at 1120 James Street) are located within 1,000 feet of the source area.  Monitoring wells MW-1, MW-3, MW-4, MW-11 and DW-1 could not be located. Monitoring wells MW-2, MW-5, MW-6, MW-9 and MW-10 were dry or had insufficient water to sample. Monitoring wells MW-2R, MW-5R, MW-6R, MW-7R and MW-8 were sampled.  Petroleum constituents were not detected above the laboratory detection limits in monitoring wells MW-2R, MW-6R, or MW-8.  Monitoring wells MW-5R and MW-7R contained multiple petroleum constituents at concentrations above the 2L Standards. For the VOCs exceeding 2L Standards, concentrations decreased for all VOCs in well MW-5R, while concentrations increased for several VOCs and decreased for several VOCs in well MW-7R, compared to the February 7, 2019. The highest concentrations were detected in MW-7R.  PCE was detected in MW-5R and MW-7R at concentrations exceeding the 2L Standard, and TCE was detected in monitoring well MW-5R at a concentration exceeding the 2L Standard. The source of the chlorinated solvents is not known. These chlorinated VOCs were not detected previously in these two well, but was detected previously in monitoring well MW-3 at concentrations less than the 2L Standard.  None of the sampled monitoring wells contained VOCs at concentrations above GCLs.  Groundwater flows to the west. Based on these findings, ATC recommends the following, depending on available funding through the Trust Fund Program:  Continue to use ORS in wells MW-5R and MW-7R in an effort to reduced dissolved VOC concentrations. Groundwater Monitoring Report March 18, 2020 Southland Oil Company and Oakdale Hardware Incident # 16910/19678 ATC Project No. SLP1691005 4  Conduct semi-annual groundwater sampling events of select monitoring wells and water supply well WSW-100.  Depending on the results of the above, consider pursuit of a municipal water connection with the owner of the 100 Radio Road property. 3.0 SITE DESCRIPTION 3.1 Site Characterization The NCDEQ retained ATC to provide environmental consulting services for the combined Southland Oil Company and Oakdale Hardware sites, located at 1832 and 1836 Oakdale Road, in Charlotte, Mecklenburg County, North Carolina. Figure 1 depicts the sites on a topographic map. The former Southland Oil Company site currently operates as a refreshment/snack stand, and the former Oakdale Hardware site operates as a dog grooming and boarding service. Based on an updated receptor survey conducted in 2015, two inactive water supply wells and one active drinking water supply well are located within 250 feet of the source areas, and one presumed active drinking water supply well and two active community water supply wells are located between 250 and 1,000 feet of the source areas. Municipal water is available and in use at the site and most surrounding properties. Information about the water supply wells is included in Table 1, and a map depicting their locations is included as Figure 2. 3.2 Site Background The former Southland Oil Company property (1832 Oakdale Road) previously operated one 6,000-gallon UST and one 4,000-gallon UST, both containing gasoline. The 4,000-gallon UST was reported as removed on December 1, 1996, and the 6,000-gallon UST was reported as removed on November 10, 1998. The former Oakdale Hardware property (1836 Oakdale Road) previously operated one 2,000- gallon gasoline UST, installed on March 6, 1976. The UST was reported as removed on December 29, 1993. In 1998, Carolina Environmental Associates and Nightingale Geologic Consultants, P.C. prepared a Comprehensive Site Assessment (CSA) for the Southland Oil Company property, which identified soil and groundwater contamination originating from a release from the UST system. The CSA also identified 65 supply wells within 1,500 feet of the site. In September, 1999, ATC performed groundwater monitoring at the site which identified impact by petroleum constituents above 2L Standards in the monitoring well network associated with the Southland Oil Company and Oakdale Hardware releases. Subsequent groundwater monitoring events were performed by Force Environmental Service Company, LLC between 2008 and 2012. The groundwater monitoring reports indicated that many of the site’s monitoring wells have been historically dry during groundwater monitoring events. Prior groundwater monitoring indicates remaining impact by petroleum constituents. In August 2014, ATC performed a groundwater monitoring event at the site with impact identified in MW-1 and DW-1 above 2L Standards. Three water supply wells were also sampled in August 2014. The on-site water supply well WSW-Site (located at 1828 Oakdale Road) contained Groundwater Monitoring Report March 18, 2020 Southland Oil Company and Oakdale Hardware Incident # 16910/19678 ATC Project No. SLP1691005 5 bromoform above the 2L Standard, and detectable concentrations of bromodichloromethane, chlorodibromomethane, and chloroform below 2L Standards. Nearby water supply well WSW-100 (located at 100 Radio Road) contained MTBE and chloroform below 2L Standards, and community water supply well WSW-1918 (located at 1120 James Street) contained bromodichloromethane, chloroform, and tetrachloroethylene (PCE) below 2L Standards. In December 2014, ATC installed groundwater monitoring wells MW-2R, MW-5R, MW-6R, and MW-7R to replace historically dry wells. Monitoring wells MW-5R and MW-6R both contained multiple petroleum constituents above 2L Standards. ATC conducted an updated receptor survey in October 2015 and identified 11 properties with water supply wells within 1,500 feet of the sites. Six of the properties with water supply wells did not have an account with Charlotte-Mecklenburg Utilities Department. One of the identified properties (located at 1120 James Street) reported the presence of two water supply wells, which provides drinking water to a total of 46 residences. On behalf of the NCDEQ, ATC sent letters to property owners at 100 Radio Road (WSW-100) and 1120 James Street (WSW-1918 and C- WSW), offering to connect them to the municipal water system. The property representative from 100 Radio Road declined, and a response was not received from the James Street property. In August 2018, Mr. George Malone purchased the 100 Radio Road property, and the property is used as a plant nursery (Malone’s Nursery). From 2016 to present, ATC has conducted semi-annual groundwater sampling activities of select monitoring wells, in rotation with installing and maintaining oxygen-releasing socks (ORS). Concentrations of petroleum constituents have decreased with time but remain above 2L Standards. 3.3 Site and Regional Geology According to the Geologic Map of North Carolina, produced by the State of North Carolina in 1985, the site lies in the Charlotte Belt of the Piedmont Physiographic Province of North Carolina. The rock type at the site has been identified as granite. The shallow subsurface in most areas of the Piedmont contains residual soil overburden, including structure-free residuum, saprolite, and partially weathered rock (PWR) that derive from in-place weathering of the crystalline bedrock. Occasional areas containing recent deposits of alluvium in the uppermost subsurface are found near streams and rivers. Saprolite and PWR typically contain some relict structures from the original rock material. Depth to rock ranges from ground surface at occasional outcrops to depths of greater than 100 feet in areas of easily weathered rock. No site specific geological conditions were available at the time of reporting. 3.4 Site and Regional Hydrogeology The shallow aquifer occurrence varies in depth from ground surface at springs, creeks, and rivers to as deep as 50 feet or more beneath upland surfaces in some parts of the Piedmont. Water in the alluvium or unconsolidated residual material, including saprolite and PWR, usually behaves as an unconfined aquifer, or water table, and will yield water with head elevation equivalent to the first elevation where water was encountered. Permeability varies with lithology and is typically relatively low in residual soils, with higher permeability in saprolite or PWR due to relict rock texture and variable susceptibility to weathering exhibited by different minerals in the rock. Groundwater Monitoring Report March 18, 2020 Southland Oil Company and Oakdale Hardware Incident # 16910/19678 ATC Project No. SLP1691005 6 Groundwater flow in residual soils or alluvium is usually in rough concurrence with local topographic conditions. Based on the data from the monitoring well network, shallow groundwater flows generally to the west. Depth to water at the site ranges from approximately 29 to 31 feet below ground surface (ft bgs), based on the current GMR field data. The bedrock fractures or other planar features of the Blue Ridge Physiographic Province generally constitute the bedrock aquifer, with the surrounding rock material being effectively impermeable. Along with fractures, contacts between rock bodies probably constitute zones of significant groundwater occurrence in the bedrock. The surrounding material and overlying residuum tend to make the bedrock aquifer a semi-confined aquifer. That is, the overlying water and soil weight normally results in pressure that causes water in a borehole, which intersects a fracture or other feature, to rise above the elevation of the fracture or feature. Modern water supply wells in the Piedmont, likely including those in the site vicinity, are typically installed with a surface casing through the unconsolidated material, and an open borehole into the bedrock where water-bearing fractures are encountered. 4.0 GROUNDWATER CHARACTERIZATION 4.1 Groundwater Levels On December 19, 2019, ATC conducted a comprehensive groundwater monitoring event. Of the sixteen wells proposed for sampling, monitoring wells MW-2, MW-2R, MW-5, MW-5R, MW-6, MW-6R, MW-7, MW-7R, MW-8, MW-9, and MW-10 were located and gauged for depth to groundwater. Monitoring wells MW-1, MW-3, MW-4, MW-11, and DW-1 were not located. Figure 3 depicts current site conditions and pertinent features. Table 2 includes monitoring well construction details. An electronic water level indicator was used to measure the depth to groundwater and total well depth from the top of well casing (TOC). Groundwater elevation is then calculated based on TOC elevations. Depth to groundwater and groundwater elevation data are summarized in Table 3. A groundwater contour map depicting groundwater flow is presented in Figure 4. Based on the data obtained during the December 19, 2019, field activities, groundwater flows to the west. Field notes from the December 19, 2019, groundwater monitoring event are presented in Appendix A. 4.2 Groundwater Quality On December 19, 2019, ATC collected groundwater samples from monitoring wells MW-2R, MW- 5R, MW-6R, MW-7R, and MW-8 for laboratory analysis. Monitoring wells MW-2, MW-5, MW-6, MW-7, MW-9, and MW-10 were dry, or did not contain sufficient water for sample collection. During sampling activities, the wells were purged of three standing well volumes, or purged dry and allowed to recharge, prior to sample collection to ensure a representative groundwater sample. Prior to purging wells MW-5R and MW-7R, ORS that were installed in June 2019 were removed. Groundwater field parameters, including temperature, pH, conductivity, and dissolved oxygen were measured at the time of sampling. Field parameters for each well are tabulated in Table 4. Note that the elevated dissolved oxygen, specific conductance, and pH readings in wells MW-5R and MW-7R are likely due to the prior ORS. Field notes are presented in Appendix A. Groundwater Monitoring Report March 18, 2020 Southland Oil Company and Oakdale Hardware Incident # 16910/19678 ATC Project No. SLP1691005 7 The groundwater samples were collected in laboratory-supplied preserved containers; placed on ice; entered into chain of custody control; and shipped to North Carolina accredited Pace Analytical laboratory in Huntersville, North Carolina. The groundwater samples were analyzed by Standard Method 6200B for VOCs including petroleum constituents. The groundwater analytical results were compared to the 2L Standards and GCLs. Groundwater analytical results indicate the following:  None of the sampled wells contained concentrations of VOCs above GCLs.  Monitoring well MW-5R contained benzene, MTBE, naphthalene, and PCE at concentrations above 2L Standards. Concentrations decreased compared to the February 2019 results.  Monitoring well MW-7R contained benzene, toluene, total xylenes, MTBE, naphthalene, PCE, and TCE at concentrations above 2L Standards. Several of the VOC concentrations increased and several decreased compared to the February 2019 results.  PCE was detected in monitoring well MW-5R and MW-7R at concentrations above the 2L Standard, and TCE was detected in monitoring well MW-5R at a concentration above the 2L Standard. The source of the chlorinated solvents is not known. These chlorinated VOCs were not detected previously in these two well, but was detected previously in monitoring well MW-3 at concentrations less than the 2L Standard.  Petroleum constituents were not detected above the laboratory detection limits in monitoring wells MW-2R, MW-6R, or MW-8.  Well MW-9 has been dry since March 2007. Well MW-10 was sampled in May 2011 and August 2014, with no exceedances of the 2L Standards. When sampled, upgradient wells MW-3 and MW-4 located between the site and the active drinking water supply wells (WSW-100, WSW-1918, and C-WSW) did not contain VOCs exceeding laboratory reporting limits (two VOCs reported at estimated concentrations). Figure 5 depicts the groundwater quality for VOCs detected above the 2L Standards. Current groundwater analytical results are summarized in Table 5. Historical groundwater analytical results are shown in Table 6. The laboratory analytical report is included in Appendix B. As compared to analytical data from February 2019, petroleum VOC concentrations appear to have generally decreased in well MW-5R, while VOC concentrations increased and decreased in well MW-7R. ORS were installed in both wells in June 2019, and the effectiveness does not appear conclusive. As part of ATC’s quality assurance and quality control (QA and QC) measures, a data review of the laboratory reports was conducted. During the review, it was found that the samples were received from the laboratory in acceptable condition and properly preserved. The samples were analyzed within correct holding times and reported within the lab report, and the chain of custody was properly completed by all parties. The laboratory QC report shows that an internal blank was analyzed for each method that was used for the original samples. The laboratory fortified blank (LFB) and laboratory control sample (LCS) data results were also provided for each analytical method. Refer to the laboratory report in Appendix B for details regarding QA results for the laboratory samples and any noted exceptions. Overall, ATC concludes that the laboratory results provide reasonably valid and usable information. Groundwater Monitoring Report March 18, 2020 Southland Oil Company and Oakdale Hardware Incident # 16910/19678 ATC Project No. SLP1691005 8 5.0 CONCLUSIONS AND RECOMMENDATIONS On behalf of the Trust Fund Branch of the UST Section, ATC has completed a GMR documenting a December 19, 2019, monitoring event for the Southland Oil Company and Oakdale Hardware sites, located at 1832 and 1836 Oakdale Road, in Charlotte, Mecklenburg County, North Carolina. The findings from the monitoring event indicate the following:  One active water supply well (WSW-100, located at 100 Radio Road) is located within 250 feet of the source area, and two community water supply wells (WSW-1918 and C-WSW, located at 1120 James Street) are located within 1,000 feet of the source area.  Monitoring wells MW-1, MW-3, MW-4, MW-11 and DW-1 could not be located. Monitoring wells MW-2, MW-5, MW-6, MW-9 and MW-10 were dry or had insufficient water to sample. Monitoring wells MW-2R, MW-5R, MW-6R, MW-7R and MW-8 were sampled.  Petroleum constituents were not detected above the laboratory detection limits in monitoring wells MW-2R, MW-6R, or MW-8.  Monitoring wells MW-5R and MW-7R contained multiple petroleum constituents at concentrations above the 2L Standards. For the VOCs exceeding 2L Standards, concentrations decreased for all VOCs in well MW-5R, while concentrations increased for several VOCs and decreased for several VOCs in well MW-7R, compared to the February 7, 2019. The highest concentrations were detected in MW-7R.  PCE was detected in MW-5R and MW-7R at concentrations exceeding the 2L Standard, and TCE was detected in monitoring well MW-5R at a concentration exceeding the 2L Standard. The source of the chlorinated solvents is not known. These chlorinated VOCs were not detected previously in these two well, but was detected previously in monitoring well MW-3 at concentrations less than the 2L Standard.  None of the sampled monitoring wells contained VOCs at concentrations above GCLs.  Groundwater flows to the west. Based on these findings, ATC recommends the following, depending on available funding through the Trust Fund Program:  Continue to use ORS in wells MW-5R and MW-7R in an effort to reduced dissolved VOC concentrations.  Conduct semi-annual groundwater sampling events of select monitoring wells and water supply well WSW-100.  Depending on the results of the above, consider pursuit of a municipal water connection with the owner of the 100 Radio Road property. TABLES TABLE 1 WATER SUPPLY WELL INFORMATION SOUTHLAND OIL COMPANY and OAKDALE HARDWARE 1832 and 1836 Oakdale Road Charlotte, North Carolina 26216 NCDENR Incident #16910 and #19678 Well Parcel ID Well Owners / Well Users Property Address Owner Address Distance from Site (ft) Well Use (P/I/N) Municipal Water Connection (Y/N) WSW-Site 3701302 Southland Oil Company 1828 Oakdale Road, Charlotte, NC 28216 P.O. Box 11048, Charlotte, NC 28220 Onsite N Y WSW-100 3701311 Betty Zimmerman 100 Radio Road, Charlotte, NC 28216 120 Shady Circle, Charlotte, NC 28216 160 P N WSW-1825 3516205 Board of Education, Charlotte Mecklenburg 1825 Oakdale Road, Charlotte, NC 28216 701 East 2nd Street, Charlotte, NC 28202 200 N Y WSW-1918 3702702 Carolina Water Service Inc. of North Carolina 1120 James Street, Charlotte, NC 28216 2335 Sanders Road, Northbrook, IL 60062 820 P N C-WSW 3702702 Carolina Water Service Inc. of North Carolina 1120 James Street, Charlotte, NC 28216 2335 Sanders Road, Northbrook, IL 60062 820 P N WSW-1618 3513512 Wade & Pansy Bennett 1618 Ronald Street, Charlotte, NC 28216 1618 Ronald Street, Charlotte, NC 28216 900 Unknown Y WSW-20111 3316120 Pleasant Grove United Methodist Church 2011 Oakdale Road, Charlotte, NC 28216 1915 Oakdale Road, Charlotte, NC 28216 928 N N WSW-1604 3701406 Valencia Ross 1604 Oakdale Road, Charlotte, NC 28216 1604 Oakdale Road, Charlotte, NC 28216 1,100 I Y WSW-1710 3513615 Ronald & Patti McGowan 1710 Ford Street, Charlotte, NC 28216 1710 Ford Street, Charlotte, NC 28216 1,150 P N WSW- 1610 3513534 Foy & Kathleen Phillips 1610 Byrum Street, Charlotte, NC 28216 1610 Byrum Street, Charlotte, NC 28216 1,150 Unknown N WSW-6210 3516203 Miguel A. Estrada & Lourdes Arellano-Suarez 6210 Cora Street, Charlotte, NC 28216 6210 Cora Street, Charlotte, NC 29216 1,280 P N WSW-1603 3513617 Nancy Lawson 1603 Byrum Street, Charlotte, NC 28216 1603 Byrum Street, Charlotte, NC 28216 1,450 N Y WSW-6322 3516202 Jimmy Darryl & Jacqueline Benfield Stogner 6322 Cora Street, Charlotte NC 28216 6322 Cora Street, Charlotte, NC 28216 1,500 P N Notes: Two water supply wells are located at C-WSW, which provide water to 46 residences (community wells). P / I / N = Potable water supply / Irrigation / Not in use Municipal water connections verified with Charlotte Mecklenburg Utilities There are two wells associated with WSW-1918, are are community water supply wells that serve approximately 46 residences 1 - Identified by previous consultants, the property was observed as vacant and the water supply well was not identified TABLE 2 MONITORING WELL CONSTRUCTION DETAILS SOUTHLAND OIL COMPANY and OAKDALE HARDWARE 1832 and 1836 Oakdale Road Charlotte, North Carolina 26216 NCDEQ Incident #16910 MW-1 5/10/1997 10-25 2 30 97.83 MW-2 9/19/1997 10-25 2 25 96.81 MW-2R 12/17/2014 25-35 2 35 95.11 MW-3 9/19/1997 10-25 2 25 98.33 MW-4 9/19/1997 10-25 2 25 96.1 MW-5 2/27/1998 10-25 2 25 98.91 MW-5R 12/17/2014 25-35 2 35 98.84 MW-6 2/27/1998 10-25 2 25 95.92 MW-6R 12/17/2014 25-35 2 35 93.53 MW-7 2/27/1998 10-25 2 25 98.15 MW-7R 12/17/2014 25-35 2 35 97.51 MW-8 7/6/1998 10-25 2 25 94.38 MW-9 7/6/1998 8.5-28.5 2 28.5 101.37 MW-10 7/6/1998 10-30 2 30 101.32 MW-11 Unknown Unknown 2 31 NA DW-1 2/27/1998 53.5-58.5 2 58.5 97.89 Top of Casing ElevationWell ID Date Installed Screen Interval (feet)Well Diameter (inches)Total Depth (feet) TABLE 3 GROUNDWATER ELEVATION DATA SOUTHLAND OIL COMPANY and OAKDALE HARDWARE 1832 and 1836 Oakdale Road Charlotte, North Carolina 26216 NCDEQ Incident #16910 2/27/1998 15.81 82.02 7/21/1998 20.38 77.45 7/28/1999 24.61 73.22 10/6/2008 28.54 69.29 5/20/2009 25.89 71.94 10/21/2009 DRY NA 3/18/2010 26.91 70.92 5/10/2011 26.94 70.89 3/7/2012 DRY NA 8/4/2014 25.75 72.08 12/19/2019 NF NA 2/27/1998 15.48 81.33 7/21/1998 20.08 76.73 7/28/1999 23.77 73.04 10/6/2008 DRY NA 5/20/2009 DRY NA 10/21/2009 DRY NA 3/18/2010 DRY NA 5/10/2011 24.76 72.05 3/7/2012 25.09 71.72 8/4/2014 24.71 72.10 12/19/2019 24.75 72.06 12/18/2014 29.05 66.06 10/5/2016 27.61 67.50 12/28/2017 31.84 63.27 2/7/2019 25.62 69.49 12/19/2019 26.75 68.36 2/27/1998 17.22 81.11 7/21/1998 21.05 77.28 7/28/1999 24.91 73.42 10/6/2008 DRY NA 5/20/2009 DRY NA 10/21/2009 DRY NA 3/18/2010 DRY NA 5/10/2011 24.91 73.42 3/7/2012 25.19 73.14 8/4/2014 24.89 73.44 12/19/2019 NF NA MW-2R MW-1 29.5 97.83 MW-2 25.15 96.81 Gauging Date Groundwater Elevation Well ID TOC Elevation Depth to GroundwaterTotal Well Depth 35 95.11 MW-3 25.5 98.33 Page 1 of 4 TABLE 3 GROUNDWATER ELEVATION DATA SOUTHLAND OIL COMPANY and OAKDALE HARDWARE 1832 and 1836 Oakdale Road Charlotte, North Carolina 26216 NCDEQ Incident #16910 Gauging Date Groundwater Elevation Well ID TOC Elevation Depth to GroundwaterTotal Well Depth 2/27/1998 13.06 83.04 7/21/1998 18.59 77.51 7/28/1999 22.57 73.53 10/6/2008 DRY NA 5/20/2009 DRY NA 10/21/2009 DRY NA 3/18/2010 DRY NA 5/10/2011 DRY NA 3/7/2012 DRY NA 8/4/2014 DRY NA 12/19/2019 NF NA 2/27/1998 18.20 80.71 7/21/1998 21.98 76.93 7/28/1999 23.71 75.20 10/6/2008 DRY NA 5/20/2009 DRY NA 10/21/2009 DRY NA 3/18/2010 DRY NA 5/10/2011 DRY NA 3/7/2012 24.25 74.66 8/4/2014 DRY NA 12/19/2019 23.80 75.11 12/18/2014 31.40 67.41 10/5/2016 34.54 64.27 12/28/2017 33.78 65.03 2/7/2019 29.01 69.80 12/19/2019 31.60 67.21 2/27/1998 14.93 80.99 7/21/1998 19.73 76.19 7/28/1999 23.27 72.65 10/6/2008 NM NA 5/20/2009 NM NA 10/21/2009 NM NA 3/18/2010 NM NA 5/10/2011 NM NA 3/7/2012 NM NA 8/4/2014 24.93 70.99 12/19/2019 24.68 71.24 12/18/2014 31.09 62.44 10/5/2016 26.99 66.54 12/28/2017 32.04 61.49 2/7/2019 24.70 68.83 12/19/2019 27.80 65.73 MW-6R MW-5R 35 93.53 MW-4 25 96.10 MW-5 24.35 98.91 MW-6 25 95.92 35 98.81 Page 2 of 4 TABLE 3 GROUNDWATER ELEVATION DATA SOUTHLAND OIL COMPANY and OAKDALE HARDWARE 1832 and 1836 Oakdale Road Charlotte, North Carolina 26216 NCDEQ Incident #16910 Gauging Date Groundwater Elevation Well ID TOC Elevation Depth to GroundwaterTotal Well Depth 2/27/1998 17.30 80.85 7/21/1998 21.61 76.54 7/28/1999 24.28 73.87 10/6/2008 DRY NA 5/20/2009 DRY NA 10/21/2009 DRY NA 3/18/2010 DRY NA 5/10/2011 24.90 73.25 3/7/2012 DRY NA 8/4/2014 DRY NA 12/19/2019 24.90 73.25 12/18/2014 29.42 68.09 10/5/2016 27.61 69.90 12/28/2017 32.83 64.68 2/7/2019 30.91 66.60 12/19/2019 32.15 65.36 7/21/1998 17.72 76.66 7/28/1999 21.28 73.10 10/6/2008 DRY NA 5/20/2009 23.60 70.78 10/21/2009 24.77 69.61 3/18/2010 23.98 70.40 5/10/2011 23.87 70.51 3/7/2012 DRY NA 8/4/2014 22.53 71.85 12/19/2019 23.64 70.74 7/21/1998 25.27 76.10 7/28/1999 DRY NA 10/6/2008 DRY NA 5/20/2009 DRY NA 10/21/2009 DRY NA 3/18/2010 DRY NA 5/10/2011 DRY NA 3/7/2012 DRY NA 8/4/2014 DRY NA 12/19/2019 DRY NA 7/21/1998 25.18 76.14 7/28/1999 28.71 72.61 10/6/2008 DRY NA 5/20/2009 DRY NA 10/21/2009 DRY NA 3/18/2010 DRY NA 5/10/2011 29.81 71.51 3/7/2012 30.23 71.09 8/4/2014 29.72 71.60 12/19/2019 30.04 71.28 MW-7R 35 MW-7 25 98.15 MW-8 25 94.38 97.51 MW-9 28.5 101.37 MW-10 30.35 101.32 Page 3 of 4 TABLE 3 GROUNDWATER ELEVATION DATA SOUTHLAND OIL COMPANY and OAKDALE HARDWARE 1832 and 1836 Oakdale Road Charlotte, North Carolina 26216 NCDEQ Incident #16910 Gauging Date Groundwater Elevation Well ID TOC Elevation Depth to GroundwaterTotal Well Depth 7/28/1999 24.71 NA 10/6/2008 29.61 NA 5/20/2009 26.93 NA 10/21/2009 29.49 NA 3/18/2010 28.52 NA 5/10/2011 28.14 NA 3/7/2012 DRY NA 8/4/2014 NM NA 12/19/2019 NF NA 2/27/1998 16.04 81.85 7/21/1998 20.79 77.10 7/28/1999 24.71 73.18 10/6/2008 28.87 69.02 5/20/2009 28.42 69.47 10/21/2009 28.69 69.20 3/18/2010 30.55 67.34 5/10/2011 28.40 69.49 3/7/2012 28.50 69.39 8/4/2014 26.38 71.51 12/19/2019 NF NA Notes: TOC = Top of Casing NM = Not Measured NA = Not Available NF = Not Found All measurements expressed in feet MW-11 31 NA DW-1 58.5 97.89 Page 4 of 4 TABLE 4 GROUNDWATER FIELD PARAMETERS SOUTHLAND OIL COMPANY and OAKDALE HARDWARE 1832 and 1836 Oakdale Road Charlotte, North Carolina 26216 NCDENR Incident #16910 and #19678 Well ID Sample Date Time Temperature (C°)Specific Conductivity (µS/cm) Dissolved Oxygen (mg/L)pH Oxidation Reduction Potential (mV) MW-2R 12/19/2019 12:40 18.43 0.133 4.14 9.16 76.0 MW-5R 12/19/2019 12:05 18.66 4.392 24.09 12.03 -13.9 MW-6R 12/19/2019 13:10 18.73 0.186 1.77 7.91 -97.3 MW-7R 12/19/2019 12:20 19.14 6.035 31.32 12.32 -4.0 MW-8 12/19/2019 13:25 18.77 0.19 3.72 6.54 75.0 Notes: C° = Degrees Celcius µS/cm = micro-Siemens per centimenter mg/L = milligrams per Liter mV = millivolts TABLE 5 CURRENT GROUNDWATER ANALYTICAL RESULTS SOUTHLAND OIL COMPANY and OAKDALE HARDWARE 1832 and 1836 Oakdale Road Charlotte, North Carolina 26216 NCDEQ Incident #16910 Well ID Sample Date BenzeneTolueneEthylbenzeneTotal XylenesMethyl Tertiary Butyl EtherNaphthaleneIsopropyl EtherIsopropylbenzenen-PropylbenzeneTetrachloroethyleneTrichloroethylene1,2,4-Trimethylbenzene1,3,5-Trimethylbenzene2-Butanone (MEK)cis-1,2-Dichloroethene2-HexanoneMW-1 12/19/2019 MW-2 12/19/2019 Dry MW-2R 12/19/2019 <0.24 <0.23 <0.24 <0.50 <0.44 <0.66 <0.33 <0.24 <0.24 <0.23 <0.23 <0.19 <0.23 <3.6 <0.21 <0.60 MW-3 12/19/2019 MW-4 12/19/2019 MW-5 12/19/2019 MW-5R 12/19/2019 118 <1.1 16.8 80.1 761 15.7 10.1 <1.2 <1.2 3.0 <1.2 25.8 <1.1 54.4 <1.0 <3.0 MW-6 12/19/2019 MW-6R 12/19/2019 <0.24 <0.23 <0.24 <0.50 <0.44 <0.66 <0.33 <0.24 <0.24 <0.23 <0.23 <0.19 <0.23 <3.6 <0.21 <0.60 MW-7 12/19/2019 MW-7R 12/19/2019 463 961 273 1710 510 125 4.0 15.7 31.8 15.9 3.2 314 51.5 182 3.2 311 MW-8 12/19/2019 <0.24 <0.23 <0.24 <0.50 <0.44 <0.66 <0.33 <0.24 <0.24 <0.23 <0.23 <0.19 <0.23 <3.6 <0.21 <0.60 MW-9 12/19/2019 MW-10 12/19/2019 MW-11 12/19/2019 DW-1 12/19/2019 1 600 600 500 20 6 70 70 70 0.7 3 400 400 4,000 70 40 5,000 260,000 84,500 85,500 20,000 6,000 7,000 25,000 30,000 700 3,000 28,500 25,000 4,000,000 70,000 40,000 Notes: Concentrations are reported in micrograms per liter (µg/l).J = Estimated value above or equal to Method Detection Limit and less than Quantification Limit. < = Not detected at or above the laboratory detection limit Values in BOLD print indicate levels above 2L Standards GCL = Gross Contamination Level Not Located Not Located Not Located Dry Dry Dry 2L Standard (ug/l) GCL (ug/l) Dry Not Located Not Located Dry TABLE 6 HISTORICAL GROUNDWATER ANALYTICAL RESULTS SOUTHLAND OIL COMPANY and OAKDALE HARDWARE 1832 and 1836 Oakdale Road Charlotte, North Carolina 26216 NCDEQ Incident #16910 BenzeneTolueneEthylbenzeneTotal XylenesMethyl Tertiary Butyl EtherIsopropyl EtherChloromethaneNaphthaleneChloroformp-IsopropyltolueneMethylene ChlorideTetrachloroethene (PCE)1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneIsopropylbenzenen-Propylbenzenen-Butylbenzenesec-Butylbenzenetert-Butylbenzene2-Butanone (MEK)4-Methyl-2-pentanone (MIBK)Acetone1 600 600 500 20 70 3 6 70 25.0 5 0.7 400 400 70 70 70 70 70 4,000 100 6,000 5,000 260,000 84,500 85,500 20,000 70,000 3,000 6,000 70,000 11,700 5,000 700 28,500 25,000 25,000 30,000 6,900 8,500 15,000 4,000,000 100,000 6,000,000 3/29/2005 6,500 27,000 2,800 15,200 2,400 <500 ND <2000 ND --ND ND 2,800 <500 <500 <500 <500 <500 -------- 11/29/2005 6,500 24,000 2,500 14,600 930 <500 ND <2000 ND --ND ND 3,300 1,000 <500 <500 <500 <500 -------- 3/8/2007 84 7,900 2,600 14,200 37 J ND ND 640 ND --ND ND 2,800 850 110 320 ND ND -------- 3/13/2007 73.1 450 916 5,290 ND ND ND 692 ND --ND ND 2,650 904 124 297 ND ND -------- 4/29/2008 25 403 1,140 4,260 5.5 ND ND 302 <5.0 --ND <5.0 1,140 397 52 130 ND ND -------- 10/6/2008 1.7 1.0 11.1 15.9 <0.5 <0.5 <0.5 5.9 <0.5 --<2.0 <0.5 24.7 8.7 <0.5 3.1 <0.5 <0.5 -------- 5/20/2009 3.2 213 1270 6,780 <0.5 <0.5 <1.0 718 <0.5 --<2.0 <0.5 1,580 406 113 164 <0.5 <0.5 -------- 10/21/2009 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry ------ 3/18/2010 42 140 180 360 <0.5 <0.5 0.59 J 56 <0.5 --<2.0 <0.5 230 95 19 46 <0.5 <0.5 -------- 8/26/2010 6.4 8.0 160 300 <0.50 <0.50 <0.50 89 <0.50 3.1 <0.50 <0.50 210 5.0 15 25 3.9 <0.50 -------- 5/10/2011 1.4 0.77 2.4 5.9 <0.5 <0.5 <0.5 1.6 <0.5 <0.5 <0.5 <0.5 2.5 2.1 <0.5 <0.5 <0.5 <0.5 <0.5 ------ 8/4/2014 <7.9 25 J 150 840 <9.0 <18 <32 <12 <14 <12 <320 <8.0 1,400 370 57 130 25 J <8.4 <9.6 ------ 12/19/2019 CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL 3/29/2005 95 25 12 113 530 ND ND 49 ND --ND ND 83 ND 3.8 9.0 51 6.0 -------- 3/8/2007 1 0.32 J 0.36 J 4.4 360 7.1 ND ND ND --ND ND 2.2 17 ND ND ND ND -------- 9/13/2007 ND 3.2 0.8 4.03 96.9 1.5 ND ND ND --ND ND 2.9 3.9 ND ND ND ND -------- 4/29/2008 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 9/12/2008 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 5/20/2009 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 10/21/2009 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 3/18/2010 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 8/26/2010 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 5/10/2011 <0.5 0.48 J <0.5 0.55 4.9 <0.5 <0.5 1.2 <0.5 <0.5 <0.5 <0.5 1.1 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 ------ 8/4/2014 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 12/19/2019 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 12/18/2014 0.82 0.40 J <0.092 1 1 <0.18 <0.32 <0.12 <0.14 <0.12 <3.2 <0.080 1 <0.10 <0.11 <0.094 <0.054 <0.084 1 --<1.9 6.2 J 10/5/2016 <0.12 <0.17 <0.13 <0.39 <0.090 <0.18 <0.55 <0.12 0.38 J <0.15 <3.2 <0.27 <0.18 <0.13 <0.12 <0.13 <0.15 <0.13 <0.12 --<1.5 <4.9 12/28/2017 <0.13 0.33 J 0.25 J 1.5 <0.13 <0.13 <0.20 0.23 J 0.32 J <0.13 <1.0 <0.13 0.67 0.33 J <0.13 <0.13 <0.13 <0.13 <0.13 --<1.3 <2.0 02/07/2019 ND ND ND ND ND ND ND ND ND --ND ND ND ND ND ND ND ND ND ------ 12/19/2019 <0.24 <0.23 <0.24 <0.50 <0.44 <0.33 <0.42 <0.66 <0.35 --<1.5 <0.23 <0.19 <0.23 <0.24 <0.24 <0.35 <0.25 <0.25 <3.6 ---- 2L Standard GCL Standard Concentrations in ug/L MW-2R MW-2 Well ID Sample Date MW-1 Page 1 of 5 TABLE 6 HISTORICAL GROUNDWATER ANALYTICAL RESULTS SOUTHLAND OIL COMPANY and OAKDALE HARDWARE 1832 and 1836 Oakdale Road Charlotte, North Carolina 26216 NCDEQ Incident #16910 BenzeneTolueneEthylbenzeneTotal XylenesMethyl Tertiary Butyl EtherIsopropyl EtherChloromethaneNaphthaleneChloroformp-IsopropyltolueneMethylene ChlorideTetrachloroethene (PCE)1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneIsopropylbenzenen-Propylbenzenen-Butylbenzenesec-Butylbenzenetert-Butylbenzene2-Butanone (MEK)4-Methyl-2-pentanone (MIBK)Acetone1 600 600 500 20 70 3 6 70 25.0 5 0.7 400 400 70 70 70 70 70 4,000 100 6,000 5,000 260,000 84,500 85,500 20,000 70,000 3,000 6,000 70,000 11,700 5,000 700 28,500 25,000 25,000 30,000 6,900 8,500 15,000 4,000,000 100,000 6,000,000 2L Standard GCL Standard Concentrations in ug/L Well ID Sample Date 3/29/2005 ND ND ND ND ND ND ND ND ND --ND ND ND ND ND ND ND ND -------- 3/8/2007 ND ND ND ND ND ND ND ND ND --ND 0.57 ND ND ND ND ND ND -------- 9/13/2007 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 4/29/2008 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 9/12/2008 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 5/20/2009 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 10/21/2009 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 3/18/2010 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 8/26/2010 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 5/10/2011 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 0.33 J <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 ------ 8/4/2014 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 12/19/2019 CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL 3/8/2007 ND ND ND ND 0.29 J ND ND ND ND --ND ND ND ND ND ND ND ND -------- 9/13/2007 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 4/29/2008 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 9/12/2008 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 5/20/2009 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 10/21/2009 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 3/18/2010 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 8/26/2010 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 5/10/2011 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 8/4/2014 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 12/19/2019 CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL 3/8/2007 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 9/13/2007 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 4/29/2008 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 9/12/2008 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 5/20/2009 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 10/21/2009 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 3/18/2010 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 8/26/2010 31 28 3.3 42 130 1.7 0.49 J 1.8 <0.50 --<0.50 <0.50 17 34 0.50 0.78 <0.50 <0.50 -------- 8/10/2011 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 8/4/2014 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 12/19/2019 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry MW-5 MW-3 MW-4 Page 2 of 5 TABLE 6 HISTORICAL GROUNDWATER ANALYTICAL RESULTS SOUTHLAND OIL COMPANY and OAKDALE HARDWARE 1832 and 1836 Oakdale Road Charlotte, North Carolina 26216 NCDEQ Incident #16910 BenzeneTolueneEthylbenzeneTotal XylenesMethyl Tertiary Butyl EtherIsopropyl EtherChloromethaneNaphthaleneChloroformp-IsopropyltolueneMethylene ChlorideTetrachloroethene (PCE)1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneIsopropylbenzenen-Propylbenzenen-Butylbenzenesec-Butylbenzenetert-Butylbenzene2-Butanone (MEK)4-Methyl-2-pentanone (MIBK)Acetone1 600 600 500 20 70 3 6 70 25.0 5 0.7 400 400 70 70 70 70 70 4,000 100 6,000 5,000 260,000 84,500 85,500 20,000 70,000 3,000 6,000 70,000 11,700 5,000 700 28,500 25,000 25,000 30,000 6,900 8,500 15,000 4,000,000 100,000 6,000,000 2L Standard GCL Standard Concentrations in ug/L Well ID Sample Date 12/18/2014 2,300 140 580 2,840 3,200 36 <16 <6.0 <7.2 <6.2 <160 <4.0 820 38 <5.6 64 <2.7 <4.2 <4.8 ----<230 10/5/2016 12/28/2017 270 <6.3 46.2 163 1,830 21.3 J <6.3 24.1 J <0.13 <0.13 <1.0 <0.13 50.2 11.4 J <6.3 <6.3 <6.3 <6.3 <6.3 --<63 <100 02/07/2019 213 ND 51.9 200 1100 16.3 ND 40.8 ND --ND ND 103 ND ND ND ND ND ND ------ 12/19/2019 118 <1.1 16.8 80.1 761 10.1 <2.1 15.7 <1.8 --<7.5 3.0 25.8 <1.1 <1.2 <1.2 <1.8 <1.2 <1.2 54.4 ---- 3/8/2007 1,900 880 220 1,320 2,500 7.1 J ND 150 ND --ND ND 570 390 40 100 ND ND -------- 9/13/2007 CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL 4/29/2008 CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL 9/12/2008 CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL 5/20/2009 CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL 10/21/2009 CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL 3/18/2010 CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL 8/26/2010 CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL 5/10/2011 CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL 8/4/2014 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 12/19/2019 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 12/18/2014 1,800 3,400 1,200 6,800 900 <9.0 <16 730 <7.2 <6.2 <160 <4.0 1,700 260 45 190 92 <4.2 <4.8 ----780 J 10/5/2016 <0.60 <0.85 <0.65 <1.96 0.60 J <0.90 <2.8 <0.60 <1.1 <0.75 <16 <1.4 <0.90 <0.65 <0.60 <0.65 <0.75 <0.65 <0.60 --<7.3 <24 11/18/2016 <0.60 <0.85 10 <1.96 <0.45 <0.90 <2.8 <0.60 <1.1 <0.75 <16 <1.4 <0.90 <0.65 <0.75 <0.65 <0.75 <0.65 <0.60 --<7.3 860 12/28/2017 <0.13 0.28 J 0.35 J 0.31 J <0.13 <0.13 <0.20 <0.13 <0.13 <0.13 <1.0 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 --<1.3 3.9 J 02/07/2019 0.35J ND ND ND ND ND ND ND ND --ND ND ND ND ND ND ND ND ND ------ 12/19/2019 <0.24 <0.23 <0.24 <0.50 <0.44 <0.33 <0.42 <0.66 <0.35 --<1.5 <0.23 <0.19 <0.23 <0.24 <0.24 <0.35 <0.25 <0.25 ------ 11/29/2005 65 110 52 130 130 ND ND 100 ND --ND ND 540 130 15 32 ND ND -------- 3/8/2007 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 9/13/2007 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 4/29/2008 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 9/12/2008 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 5/20/2009 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 10/21/2009 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 3/18/2010 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 8/26/2010 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 5/10/2011 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 8/4/2014 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 12/19/2019 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry MW-6R MW-6 Insufficient Water for Sample Collection MW-5R MW-7 Page 3 of 5 TABLE 6 HISTORICAL GROUNDWATER ANALYTICAL RESULTS SOUTHLAND OIL COMPANY and OAKDALE HARDWARE 1832 and 1836 Oakdale Road Charlotte, North Carolina 26216 NCDEQ Incident #16910 BenzeneTolueneEthylbenzeneTotal XylenesMethyl Tertiary Butyl EtherIsopropyl EtherChloromethaneNaphthaleneChloroformp-IsopropyltolueneMethylene ChlorideTetrachloroethene (PCE)1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneIsopropylbenzenen-Propylbenzenen-Butylbenzenesec-Butylbenzenetert-Butylbenzene2-Butanone (MEK)4-Methyl-2-pentanone (MIBK)Acetone1 600 600 500 20 70 3 6 70 25.0 5 0.7 400 400 70 70 70 70 70 4,000 100 6,000 5,000 260,000 84,500 85,500 20,000 70,000 3,000 6,000 70,000 11,700 5,000 700 28,500 25,000 25,000 30,000 6,900 8,500 15,000 4,000,000 100,000 6,000,000 2L Standard GCL Standard Concentrations in ug/L Well ID Sample Date 12/18/2014 0.68 2.9 1.2 8.6 <0.090 <0.18 <0.32 <0.12 <0.14 <0.12 <3.2 <0.080 4.4 0.46 J <0.11 0.30 J 1.5 <0.084 <0.096 ----<4.7 10/5/2016 1300 3,100 860 6,100 860 <9.0 <28 390 <11 24 J <160 <14 1,600 490 170 170 58 8.5 <6.0 --<73 <240 11/18/2016 1,000 1,900 470 3,300 1100 9.5 <14 340 <5.5 69 <80 <6.8 900 360 94 120 91 60 <3.0 --<37 510 12/28/2017 960 2260 938 4800 <6.3 <6.3 <10 435 <6.3 <6.3 <50 <6.3 1470 294 54.8 184 14.5 J 9.4 J <6.3 --135 <100 02/07/2019 393 902 318 1668 524 3.8 ND 185 ND --ND ND 407 55.5 19.3 54.5 ND ND ND ------ 12/19/2019 463 961 273 1710 510 4.0 <2.1 125 <1.8 --<7.5 15.9 314 51.5 15.7 31.8 <1.8 <1.2 <1.2 182 ---- 3/8/2007 11 ND ND 6.8 1.9 0.60 ND 5.9 ND --ND ND 4.8 ND 3.3 ND ND ND -------- 9/13/2007 4 ND 25.3 ND ND ND ND 10.4 ND --ND ND 18.4 ND ND 8.5 ND ND -------- 4/29/2008 Dry Dry Dry Dry Dry Dry Dry Dry Dry --Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 9/12/2008 Dry Dry Dry Dry Dry Dry Dry Dry Dry --Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 5/20/2009 1 0.52 2.3 2.2 <0.5 <0.5 <1.0 10.6 <0.5 --<2.0 <0.5 11.8 2.5 2.0 1.8 <0.5 <0.5 -------- 10/21/2009 2 0.61 1.7 0.69 <0.5 <0.5 <1 <2.0 <0.5 --<2.0 <0.5 0.95 <0.5 <0.5 0.83 <0.5 0.99 -------- 3/15/2010 44 120 22 73 1.0 <0.5 <1.0 16 0.17 J --<2.0 <0.5 39 12 1.6 6.1 2.8 1.3 -------- 8/26/2010 0.15 J 0.59 2.2 1.06 <0.50 <0.50 <0.50 8.0 <0.50 3 <0.50 <0.50 3.3 0.82 1.0 0.91 <0.50 2.8 -------- 5/10/2011 <0.5 0.51 1.1 1.01 J <0.5 <0.5 <0.5 2.6 <0.5 <0.5 <0.5 <0.5 2.7 1.1 0.59 <0.5 2.7 1.6 <0.5 ------ 8/4/2014 0.16 J 0.22 J 0.44 J 0.99 J <0.090 <0.18 <0.32 7.2 <0.14 3.7 <3.2 <0.080 2.0 0.53 0.56 0.25 J 3.9 1.2 0.38 J ------ 12/19/2019 <0.24 <0.23 <0.24 <0.50 <0.44 <0.33 <0.42 <0.66 <0.35 --<1.5 <0.23 <0.19 <0.23 <0.24 <0.24 <0.35 <0.25 <0.25 <3.6 ---- 3/8/2007 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 9/13/2007 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 4/29/2008 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 9/12/2008 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 5/20/2009 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 10/21/2009 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 3/18/2010 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 8/26/2010 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 5/10/2011 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 8/4/2014 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 12/19/2019 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 3/8/2007 ND ND ND ND 1.5 ND ND ND 0.33 J --ND ND ND ND ND ND ND ND -------- 9/13/2007 ND ND ND ND 1.3 ND ND ND ND --ND ND 0.59 ND ND ND ND ND -------- 4/29/2008 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 9/12/2008 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 5/20/2009 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 10/21/2009 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 3/18/2010 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 8/26/2010 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry 5/10/2011 <0.5 0.26 J <0.5 <0.5 0.92 <0.5 <0.5 <0.5 0.7 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 ------ 8/4/2014 <0.079 <0.090 <0.092 <0.29 0.69 <0.18 <0.32 <0.12 0.44 J <0.12 <3.2 <0.080 <0.18 <0.10 <0.11 <0.094 <0.054 <0.084 <0.096 ------ 12/19/2019 Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry Dry MW-10 MW-9 MW-7R MW-8 Page 4 of 5 TABLE 6 HISTORICAL GROUNDWATER ANALYTICAL RESULTS SOUTHLAND OIL COMPANY and OAKDALE HARDWARE 1832 and 1836 Oakdale Road Charlotte, North Carolina 26216 NCDEQ Incident #16910 BenzeneTolueneEthylbenzeneTotal XylenesMethyl Tertiary Butyl EtherIsopropyl EtherChloromethaneNaphthaleneChloroformp-IsopropyltolueneMethylene ChlorideTetrachloroethene (PCE)1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneIsopropylbenzenen-Propylbenzenen-Butylbenzenesec-Butylbenzenetert-Butylbenzene2-Butanone (MEK)4-Methyl-2-pentanone (MIBK)Acetone1 600 600 500 20 70 3 6 70 25.0 5 0.7 400 400 70 70 70 70 70 4,000 100 6,000 5,000 260,000 84,500 85,500 20,000 70,000 3,000 6,000 70,000 11,700 5,000 700 28,500 25,000 25,000 30,000 6,900 8,500 15,000 4,000,000 100,000 6,000,000 2L Standard GCL Standard Concentrations in ug/L Well ID Sample Date 3/29/2005 3,600 12,000 2,400 11,200 4,900 52 ND 600 ND --ND ND 2,400 ND 650 290 210 ND ND ------ 11/29/2005 6,700 21,000 2,900 14,400 1,100 <250 ND <1000 ND --ND ND 4,000 1,200 <250 <250 <250 <250 ND ------ 3/8/2007 370 1,400 960 3,700 480 6.1 ND 330 ND --ND ND 2,700 880 110 370 ND ND ND ------ 9/13/2007 1,100 4,020 864 4,330 649 ND ND 286 ND --ND ND 1,420 457 ND 148 ND ND ND ------ 4/29/2008 805 1,300 733 2,100 697 20 <5.0 251 <2.5 --ND <2.5 851 400 61.1 144 ND ND ND ------ 10/6/2008 2.5 9.1 5.3 22.2 <0.5 <0.5 <1.0 4.5 <0.5 --<2.0 <0.5 20.9 6.1 <0.5 3.0 <0.5 <0.5 3.1 ------ 5/20/2009 0.99 <0.5 1.3 4.2 <0.5 <0.5 <1.0 5.0 <0.5 --<2.0 <0.5 3.2 0.62 <0.5 <0.5 <0.5 <0.5 <0.5 ------ 10/21/2009 3.5 1.8 5.4 14.6 <0.5 <0.5 <1 <2.0 <0.5 --<2.0 <0.5 7.1 1.4 <0.5 1.1 <0.5 <0.5 <0.5 ------ 3/18/2010 1.2 3.1 0.79 2.1 <0.5 <0.5 <1.0 1.4 <0.5 --<2.0 <0.5 2.0 0.48 J <0.5 0.38 J <0.5 <0.5 <0.5 ------ 8/26/2010 2.5 3.4 2.0 4.9 1.3 <0.50 <0.50 2.9 <0.50 0.12 J <0.50 <0.50 70 1.2 0.59 2.4 <0.50 <0.50 <0.50 ------ 5/10/2011 4.2 2.6 4.3 4.9 9 <0.5 <0.5 9.8 <0.5 <0.5 <0.5 <0.5 4.2 <0.5 1.6 4.2 <0.5 <0.5 <0.5 ------ 8/4/2014 CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL 12/19/2019 CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL 3/29/2005 2.0 6.2 ND 3.2 36 0.5 ND ND ND --ND ND ND ND ND ND ND ND -------- 11/29/2005 1.9 ND ND ND 42 ND ND ND ND --ND ND ND ND ND ND ND ND -------- 3/8/2007 7.8 0.92 ND 8.7 26 ND ND 1.4 J ND --ND ND 7.9 ND 0.53 ND ND ND -------- 9/13/2007 9.8 ND ND 9.9 26.3 ND ND 3.4 ND --ND ND 12.1 ND 0.93 ND ND ND -------- 4/29/2008 35.6 ND ND 14.1 40.2 0.61 ND 7.7 ND --ND <0.50 22.0 ND 3.3 1.8 0.97 ND -------- 10/6/2008 43.9 <0.5 <0.5 10.2 42.2 0.91 <1.0 4.1 <0.5 --<2.0 <0.5 6.1 <0.5 <0.5 <0.5 <0.5 <0.5 -------- 5/20/2009 55.0 <0.5 0.53 16.5 54.4 1.5 <1.0 10.1 <0.5 --<2.0 <0.5 16.9 <0.5 1.4 0.73 <0.5 <0.5 -------- 10/21/2009 74.6 <0.5 <0.5 14.2 46.9 1.7 <1.0 10.4 <0.5 --<2.0 <0.5 18.1 3.1 1.1 0.63 <0.5 <0.5 -------- 3/18/2010 190.0 340 55 180 34 1.9 1 27.0 <5.0 --<0.5 <0.5 81 20 6.1 12 3.5 <0.5 -------- 8/26/2010 92 0.24 J <0.50 14.8 37 2.1 <0.50 8.4 <0.50 --<0.50 <0.50 22 1.9 3.6 2.3 1.1 0.61 -------- 5/10/2011 71 <0.5 <0.5 16.9 27 1.8 <0.5 8 <0.5 <0.5 <0.5 <0.5 19 <0.5 2.9 2.3 1.1 0.53 -------- 8/4/2014 4.9 0.5 0.18 J 3.74 J 6.6 0.28 J <0.32 <0.12 <0.14 <0.12 <3.2 <0.080 3.6 0.16 J 0.34 J 0.21 J 0.13 J 0.11 J <0.096 ------ 12/19/2019 CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL CNL Notes: ND = Not detected at or above the laboratory detection limit J = Estimated value below method reporting limit CNL = Could Not Locate Values in BOLD print indicate levels above 2L Standards GCL = Gross Contamination Level -- = Constituent not analyzed Underlined values indicate detection limit is above 2L Standard due to dilution. MW-11 DW-1 Page 5 of 5 FIGURES 1,500'1,000'500'LEGENDWATER SUPPLYWELL LOCATIONPROJECT NO. NOTES: DATE TITLE SCALEREV. BYPREP. BYCAD FILE WSW-1918*1120 James StreetSource: NC GeospatialDatabaseOakdale RoadWSW-100100 Radio RoadWSW-Site1828 Oakdale RoadWSW-16041604 Oakdale RoadRadio RoadPleasant Grove Road1. * WSW-1918 refers to the community water supply well located at 1120 James Street. The water supply well sample was collected at 1918 Oakdale Road, which is provided water from the community well.SITEWSW-20112011 Oakdale Road2. Previously identified water supply well WSW-2011 was observed as a vacant lot and no water supply well was identified at the property.WSW-18251825 Oakdale RoadWSW-62106210 Cora StreetWSW-63226322 Cora Street Former Oakdale HardwareFormerSouthland OilCompanyOakdaleElementary SchoolMW-10MW-9MW-7MW-6MW-8MW-4MW-2MW-5MW-11DW-1MW-1MW-3OAKDALEROADMW-6RMW-2RMW-7RMW-5RASSOCIATES OF NORTH CAROLINA, P.C. (704) 529-3200 FAX (704) 529-3272 PROJECT NO. Charlotte, North Carolina 28273 NOTES: DATE TITLE SCALEREV. BYPREP. BYCAD FILE 1. Groundwater samples collected December 19, 2019. 2. Deep aquifer well not used in contour. 3. Dashed areas indicate areas of less certainty.70.7465.7368.3665.36NMNMNMNMNMNMNMNMNMNM67.2170.068.066.064.067.21NMLEGENDTYPE II MONITORING WELLTYPE III MONITORING WELLGROUNDWATER ELEVATIONIN FEET NOT MEASUREDGROUNDWATER ELEVATIONCONTOUR (DASHED WHEREINFERRED)GROUNDWATER FLOWDIRECTION NM4 Former Oakdale HardwareFormerSouthland OilCompanyOakdaleElementary SchoolMW-10MW-9MW-7MW-6MW-8MW-4MW-2MW-5MW-11DW-1MW-1MW-3OAKDALEROADMW-6RMW-2RMW-7RMW-5RASSOCIATES OF NORTH CAROLINA, P.C. (704) 529-3200 FAX (704) 529-3272 PROJECT NO. Charlotte, North Carolina 28273 NOTES: DATE TITLE SCALEREV. BYPREP. BYCAD FILE 1. Groundwater samples collected on December 19, 2019. 2. Concentrations shown exceed 2L Standards.CNLLEGENDTYPE II MONITORING WELLTYPE III MONITORING WELLCOULD NOT LOCATENS APPENDIX A FIELD NOTES APPENDIX B LABORATORY ANALYTICAL REPORT #=CL# December 31, 2019 LIMS USE: FR - ERIN GREENE LIMS OBJECT ID: 92458367 92458367 Project: Pace Project No.: RE: Erin Greene ATC Group 7606 Whitehall Executive Cente Suite 800 Charlotte, NC 28273 Southland Oil Dear Erin Greene: Enclosed are the analytical results for sample(s) received by the laboratory on December 20, 2019. The results relate only to the samples included in this report. Results reported herein conform to the most current, applicable TNI/NELAC standards and the laboratory's Quality Assurance Manual, where applicable, unless otherwise noted in the body of the report. If you have any questions concerning this report, please feel free to contact me. Sincerely, Angela Baioni for taylor.ezell@pacelabs.com Project Manager Taylor Ezell (704)875-9092 Enclosures REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 1 of 30 #=CP# CERTIFICATIONS Pace Project No.: Project: 92458367 Southland Oil Pace Analytical Services Charlotte 9800 Kincey Ave. Ste 100, Huntersville, NC 28078 Louisiana/NELAP Certification # LA170028 North Carolina Drinking Water Certification #: 37706 North Carolina Field Services Certification #: 5342 North Carolina Wastewater Certification #: 12 South Carolina Certification #: 99006001 Florida/NELAP Certification #: E87627 Kentucky UST Certification #: 84 Virginia/VELAP Certification #: 460221 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 2 of 30 #=SS# SAMPLE SUMMARY Pace Project No.: Project: 92458367 Southland Oil Lab ID Sample ID Matrix Date Collected Date Received 92458367001 MW-2R Water 12/19/19 12:40 12/20/19 12:10 92458367002 MW-5R Water 12/19/19 12:05 12/20/19 12:10 92458367003 MW-6R Water 12/19/19 13:10 12/20/19 12:10 92458367004 MW-7R Water 12/19/19 12:20 12/20/19 12:10 92458367005 Field Blank Water 12/19/19 13:30 12/20/19 12:10 92458367006 MW-8 Water 12/19/19 13:25 12/20/19 12:10 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 3 of 30 #=SA# SAMPLE ANALYTE COUNT Pace Project No.: Project: 92458367 Southland Oil Lab ID Sample ID Method Analytes Reported LaboratoryAnalysts 92458367001 MW-2R SM 6200B 66 PASI-CCL 92458367002 MW-5R SM 6200B 66 PASI-CCL 92458367003 MW-6R SM 6200B 66 PASI-CCL 92458367004 MW-7R SM 6200B 66 PASI-CCL 92458367005 Field Blank SM 6200B 66 PASI-CCL 92458367006 MW-8 SM 6200B 66 PASI-CCL REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 4 of 30 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92458367 Southland Oil Sample:MW-2R Lab ID:92458367001 Collected:12/19/19 12:40 Received:12/20/19 12:10 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B6200B MSV Benzene <0.24 ug/L 12/29/19 17:04 71-43-20.50 0.24 1 Bromobenzene <0.22 ug/L 12/29/19 17:04 108-86-10.50 0.22 1 Bromochloromethane <0.26 ug/L 12/29/19 17:04 74-97-50.50 0.26 1 Bromodichloromethane <0.18 ug/L 12/29/19 17:04 75-27-40.50 0.18 1 Bromoform <0.40 ug/L 12/29/19 17:04 75-25-20.50 0.40 1 Bromomethane <1.7 ug/L 12/29/19 17:04 74-83-95.0 1.7 1 2-Butanone (MEK)<3.6 ug/L 12/29/19 17:04 78-93-35.0 3.6 1 n-Butylbenzene <0.35 ug/L 12/29/19 17:04 104-51-80.50 0.35 1 sec-Butylbenzene <0.25 ug/L 12/29/19 17:04 135-98-80.50 0.25 1 tert-Butylbenzene <0.25 ug/L 12/29/19 17:04 98-06-60.50 0.25 1 Carbon tetrachloride <0.23 ug/L 12/29/19 17:04 56-23-50.50 0.23 1 Chlorobenzene <0.22 ug/L 12/29/19 17:04 108-90-70.50 0.22 1 Chloroethane <0.58 ug/L 12/29/19 17:04 75-00-31.0 0.58 1 Chloroform <0.35 ug/L 12/29/19 17:04 67-66-30.50 0.35 1 Chloromethane <0.42 ug/L 12/29/19 17:04 74-87-31.0 0.42 1 2-Chlorotoluene <0.21 ug/L 12/29/19 17:04 95-49-80.50 0.21 1 4-Chlorotoluene <0.21 ug/L 12/29/19 17:04 106-43-40.50 0.21 1 1,2-Dibromo-3-chloropropane <0.38 ug/L 12/29/19 17:04 96-12-81.0 0.38 1 Dibromochloromethane <0.40 ug/L 12/29/19 17:04 124-48-10.50 0.40 1 1,2-Dibromoethane (EDB)<0.23 ug/L 12/29/19 17:04 106-93-40.50 0.23 1 Dibromomethane <0.31 ug/L 12/29/19 17:04 74-95-30.50 0.31 1 1,2-Dichlorobenzene <0.24 ug/L 12/29/19 17:04 95-50-10.50 0.24 1 1,3-Dichlorobenzene <0.25 ug/L 12/29/19 17:04 541-73-10.50 0.25 1 1,4-Dichlorobenzene <0.25 ug/L 12/29/19 17:04 106-46-70.50 0.25 1 Dichlorodifluoromethane <0.28 ug/L 12/29/19 17:04 75-71-80.50 0.28 1 1,1-Dichloroethane <0.24 ug/L 12/29/19 17:04 75-34-30.50 0.24 1 1,2-Dichloroethane <0.26 ug/L 12/29/19 17:04 107-06-20.50 0.26 1 1,1-Dichloroethene <0.22 ug/L 12/29/19 17:04 75-35-40.50 0.22 1 cis-1,2-Dichloroethene <0.21 ug/L 12/29/19 17:04 156-59-20.50 0.21 1 trans-1,2-Dichloroethene <0.26 ug/L 12/29/19 17:04 156-60-50.50 0.26 1 1,2-Dichloropropane <0.18 ug/L 12/29/19 17:04 78-87-50.50 0.18 1 1,3-Dichloropropane <0.34 ug/L 12/29/19 17:04 142-28-90.50 0.34 1 2,2-Dichloropropane <0.28 ug/L 12/29/19 17:04 594-20-70.50 0.28 1 1,1-Dichloropropene <0.35 ug/L 12/29/19 17:04 563-58-60.50 0.35 1 cis-1,3-Dichloropropene <0.36 ug/L 12/29/19 17:04 10061-01-50.50 0.36 1 trans-1,3-Dichloropropene <0.39 ug/L 12/29/19 17:04 10061-02-60.50 0.39 1 Diisopropyl ether <0.33 ug/L 12/29/19 17:04 108-20-30.50 0.33 1 Ethylbenzene <0.24 ug/L 12/29/19 17:04 100-41-40.50 0.24 1 Hexachloro-1,3-butadiene <1.2 ug/L 12/29/19 17:04 87-68-32.0 1.2 1 2-Hexanone <0.60 ug/L 12/29/19 17:04 591-78-65.0 0.60 1 Isopropylbenzene (Cumene)<0.24 ug/L 12/29/19 17:04 98-82-80.50 0.24 1 Methylene Chloride <1.5 ug/L 12/29/19 17:04 75-09-22.0 1.5 1 Methyl-tert-butyl ether <0.44 ug/L 12/29/19 17:04 1634-04-40.50 0.44 1 Naphthalene <0.66 ug/L 12/29/19 17:04 91-20-32.0 0.66 1 n-Propylbenzene <0.24 ug/L 12/29/19 17:04 103-65-10.50 0.24 1 Styrene <0.26 ug/L 12/29/19 17:04 100-42-50.50 0.26 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/31/2019 09:03 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 5 of 30 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92458367 Southland Oil Sample:MW-2R Lab ID:92458367001 Collected:12/19/19 12:40 Received:12/20/19 12:10 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B6200B MSV 1,1,1,2-Tetrachloroethane <0.42 ug/L 12/29/19 17:04 630-20-60.50 0.42 1 1,1,2,2-Tetrachloroethane <0.19 ug/L 12/29/19 17:04 79-34-50.50 0.19 1 Tetrachloroethene <0.23 ug/L 12/29/19 17:04 127-18-40.50 0.23 1 Toluene <0.23 ug/L 12/29/19 17:04 108-88-30.50 0.23 1 1,2,3-Trichlorobenzene <0.78 ug/L 12/29/19 17:04 87-61-62.0 0.78 1 1,2,4-Trichlorobenzene <0.44 ug/L 12/29/19 17:04 120-82-12.0 0.44 1 1,1,1-Trichloroethane <0.28 ug/L 12/29/19 17:04 71-55-60.50 0.28 1 1,1,2-Trichloroethane <0.23 ug/L 12/29/19 17:04 79-00-50.50 0.23 1 Trichloroethene <0.23 ug/L 12/29/19 17:04 79-01-60.50 0.23 1 Trichlorofluoromethane <0.34 ug/L 12/29/19 17:04 75-69-41.0 0.34 1 1,2,3-Trichloropropane <0.27 ug/L 12/29/19 17:04 96-18-40.50 0.27 1 1,2,4-Trimethylbenzene <0.19 ug/L 12/29/19 17:04 95-63-60.50 0.19 1 1,3,5-Trimethylbenzene <0.23 ug/L 12/29/19 17:04 108-67-80.50 0.23 1 Vinyl chloride <0.41 ug/L 12/29/19 17:04 75-01-41.0 0.41 1 Xylene (Total)<0.50 ug/L 12/29/19 17:04 1330-20-71.0 0.50 1 m&p-Xylene <0.44 ug/L 12/29/19 17:04 179601-23-11.0 0.44 1 o-Xylene <0.24 ug/L 12/29/19 17:04 95-47-60.50 0.24 1 Surrogates 1,2-Dichloroethane-d4 (S)97 %12/29/19 17:04 17060-07-070-130 1 4-Bromofluorobenzene (S)98 %12/29/19 17:04 460-00-470-130 1 Toluene-d8 (S)102 %12/29/19 17:04 2037-26-570-130 1 Sample:MW-5R Lab ID:92458367002 Collected:12/19/19 12:05 Received:12/20/19 12:10 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B6200B MSV Benzene 118 ug/L 12/30/19 02:37 71-43-22.5 1.2 5 Bromobenzene <1.1 ug/L 12/30/19 02:37 108-86-12.5 1.1 5 Bromochloromethane <1.3 ug/L 12/30/19 02:37 74-97-52.5 1.3 5 Bromodichloromethane <0.92 ug/L 12/30/19 02:37 75-27-42.5 0.92 5 Bromoform <2.0 ug/L 12/30/19 02:37 75-25-22.5 2.0 5 Bromomethane <8.6 ug/L 12/30/19 02:37 74-83-925.0 8.6 5 2-Butanone (MEK)54.4 ug/L 12/30/19 02:37 78-93-325.0 18.0 5 n-Butylbenzene <1.8 ug/L 12/30/19 02:37 104-51-82.5 1.8 5 sec-Butylbenzene <1.2 ug/L 12/30/19 02:37 135-98-82.5 1.2 5 tert-Butylbenzene <1.2 ug/L 12/30/19 02:37 98-06-62.5 1.2 5 Carbon tetrachloride <1.2 ug/L 12/30/19 02:37 56-23-52.5 1.2 5 Chlorobenzene <1.1 ug/L 12/30/19 02:37 108-90-72.5 1.1 5 Chloroethane <2.9 ug/L 12/30/19 02:37 75-00-35.0 2.9 5 Chloroform <1.8 ug/L 12/30/19 02:37 67-66-32.5 1.8 5 Chloromethane <2.1 ug/L 12/30/19 02:37 74-87-35.0 2.1 5 2-Chlorotoluene <1.0 ug/L 12/30/19 02:37 95-49-82.5 1.0 5 4-Chlorotoluene <1.0 ug/L 12/30/19 02:37 106-43-42.5 1.0 5 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/31/2019 09:03 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 6 of 30 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92458367 Southland Oil Sample:MW-5R Lab ID:92458367002 Collected:12/19/19 12:05 Received:12/20/19 12:10 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B6200B MSV 1,2-Dibromo-3-chloropropane <1.9 ug/L 12/30/19 02:37 96-12-85.0 1.9 5 Dibromochloromethane <2.0 ug/L 12/30/19 02:37 124-48-12.5 2.0 5 1,2-Dibromoethane (EDB)<1.2 ug/L 12/30/19 02:37 106-93-42.5 1.2 5 Dibromomethane <1.6 ug/L 12/30/19 02:37 74-95-32.5 1.6 5 1,2-Dichlorobenzene <1.2 ug/L 12/30/19 02:37 95-50-12.5 1.2 5 1,3-Dichlorobenzene <1.2 ug/L 12/30/19 02:37 541-73-12.5 1.2 5 1,4-Dichlorobenzene <1.2 ug/L 12/30/19 02:37 106-46-72.5 1.2 5 Dichlorodifluoromethane <1.4 ug/L 12/30/19 02:37 75-71-82.5 1.4 5 1,1-Dichloroethane <1.2 ug/L 12/30/19 02:37 75-34-32.5 1.2 5 1,2-Dichloroethane <1.3 ug/L 12/30/19 02:37 107-06-22.5 1.3 5 1,1-Dichloroethene <1.1 ug/L 12/30/19 02:37 75-35-42.5 1.1 5 cis-1,2-Dichloroethene <1.0 ug/L 12/30/19 02:37 156-59-22.5 1.0 5 trans-1,2-Dichloroethene <1.3 ug/L 12/30/19 02:37 156-60-52.5 1.3 5 1,2-Dichloropropane <0.92 ug/L 12/30/19 02:37 78-87-52.5 0.92 5 1,3-Dichloropropane <1.7 ug/L 12/30/19 02:37 142-28-92.5 1.7 5 2,2-Dichloropropane <1.4 ug/L 12/30/19 02:37 594-20-72.5 1.4 5 1,1-Dichloropropene <1.7 ug/L 12/30/19 02:37 563-58-62.5 1.7 5 cis-1,3-Dichloropropene <1.8 ug/L 12/30/19 02:37 10061-01-52.5 1.8 5 trans-1,3-Dichloropropene <2.0 ug/L 12/30/19 02:37 10061-02-62.5 2.0 5 Diisopropyl ether 10.1 ug/L 12/30/19 02:37 108-20-32.5 1.7 5 Ethylbenzene 16.8 ug/L 12/30/19 02:37 100-41-42.5 1.2 5 Hexachloro-1,3-butadiene <6.0 ug/L 12/30/19 02:37 87-68-310.0 6.0 5 2-Hexanone <3.0 ug/L 12/30/19 02:37 591-78-625.0 3.0 5 Isopropylbenzene (Cumene)<1.2 ug/L 12/30/19 02:37 98-82-82.5 1.2 5 Methylene Chloride <7.5 ug/L 12/30/19 02:37 75-09-210.0 7.5 5 Methyl-tert-butyl ether 761 ug/L 12/30/19 02:37 1634-04-42.5 2.2 5 Naphthalene 15.7 ug/L 12/30/19 02:37 91-20-310.0 3.3 5 n-Propylbenzene <1.2 ug/L 12/30/19 02:37 103-65-12.5 1.2 5 Styrene <1.3 ug/L 12/30/19 02:37 100-42-52.5 1.3 5 1,1,1,2-Tetrachloroethane <2.1 ug/L 12/30/19 02:37 630-20-62.5 2.1 5 1,1,2,2-Tetrachloroethane <0.96 ug/L 12/30/19 02:37 79-34-52.5 0.96 5 Tetrachloroethene 3.0 ug/L 12/30/19 02:37 127-18-42.5 1.2 5 Toluene <1.1 ug/L 12/30/19 02:37 108-88-32.5 1.1 5 1,2,3-Trichlorobenzene <3.9 ug/L 12/30/19 02:37 87-61-610.0 3.9 5 1,2,4-Trichlorobenzene <2.2 ug/L 12/30/19 02:37 120-82-110.0 2.2 5 1,1,1-Trichloroethane <1.4 ug/L 12/30/19 02:37 71-55-62.5 1.4 5 1,1,2-Trichloroethane <1.2 ug/L 12/30/19 02:37 79-00-52.5 1.2 5 Trichloroethene <1.2 ug/L 12/30/19 02:37 79-01-62.5 1.2 5 Trichlorofluoromethane <1.7 ug/L 12/30/19 02:37 75-69-45.0 1.7 5 1,2,3-Trichloropropane <1.4 ug/L 12/30/19 02:37 96-18-42.5 1.4 5 1,2,4-Trimethylbenzene 25.8 ug/L 12/30/19 02:37 95-63-62.5 0.96 5 1,3,5-Trimethylbenzene <1.1 ug/L 12/30/19 02:37 108-67-82.5 1.1 5 Vinyl chloride <2.0 ug/L 12/30/19 02:37 75-01-45.0 2.0 5 Xylene (Total)80.1 ug/L 12/30/19 02:37 1330-20-75.0 2.5 5 m&p-Xylene 40.4 ug/L 12/30/19 02:37 179601-23-15.0 2.2 5 o-Xylene 39.8 ug/L 12/30/19 02:37 95-47-62.5 1.2 5 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/31/2019 09:03 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 7 of 30 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92458367 Southland Oil Sample:MW-5R Lab ID:92458367002 Collected:12/19/19 12:05 Received:12/20/19 12:10 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B6200B MSV Surrogates 1,2-Dichloroethane-d4 (S)96 %12/30/19 02:37 17060-07-070-130 5 4-Bromofluorobenzene (S)107 %12/30/19 02:37 460-00-470-130 5 Toluene-d8 (S)100 %12/30/19 02:37 2037-26-570-130 5 Sample:MW-6R Lab ID:92458367003 Collected:12/19/19 13:10 Received:12/20/19 12:10 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B6200B MSV Benzene <0.24 ug/L 12/29/19 17:22 71-43-20.50 0.24 1 Bromobenzene <0.22 ug/L 12/29/19 17:22 108-86-10.50 0.22 1 Bromochloromethane <0.26 ug/L 12/29/19 17:22 74-97-50.50 0.26 1 Bromodichloromethane <0.18 ug/L 12/29/19 17:22 75-27-40.50 0.18 1 Bromoform <0.40 ug/L 12/29/19 17:22 75-25-20.50 0.40 1 Bromomethane <1.7 ug/L 12/29/19 17:22 74-83-95.0 1.7 1 2-Butanone (MEK)<3.6 ug/L 12/29/19 17:22 78-93-35.0 3.6 1 n-Butylbenzene <0.35 ug/L 12/29/19 17:22 104-51-80.50 0.35 1 sec-Butylbenzene <0.25 ug/L 12/29/19 17:22 135-98-80.50 0.25 1 tert-Butylbenzene <0.25 ug/L 12/29/19 17:22 98-06-60.50 0.25 1 Carbon tetrachloride <0.23 ug/L 12/29/19 17:22 56-23-50.50 0.23 1 Chlorobenzene <0.22 ug/L 12/29/19 17:22 108-90-70.50 0.22 1 Chloroethane <0.58 ug/L 12/29/19 17:22 75-00-31.0 0.58 1 Chloroform <0.35 ug/L 12/29/19 17:22 67-66-30.50 0.35 1 Chloromethane <0.42 ug/L 12/29/19 17:22 74-87-31.0 0.42 1 2-Chlorotoluene <0.21 ug/L 12/29/19 17:22 95-49-80.50 0.21 1 4-Chlorotoluene <0.21 ug/L 12/29/19 17:22 106-43-40.50 0.21 1 1,2-Dibromo-3-chloropropane <0.38 ug/L 12/29/19 17:22 96-12-81.0 0.38 1 Dibromochloromethane <0.40 ug/L 12/29/19 17:22 124-48-10.50 0.40 1 1,2-Dibromoethane (EDB)<0.23 ug/L 12/29/19 17:22 106-93-40.50 0.23 1 Dibromomethane <0.31 ug/L 12/29/19 17:22 74-95-30.50 0.31 1 1,2-Dichlorobenzene <0.24 ug/L 12/29/19 17:22 95-50-10.50 0.24 1 1,3-Dichlorobenzene <0.25 ug/L 12/29/19 17:22 541-73-10.50 0.25 1 1,4-Dichlorobenzene <0.25 ug/L 12/29/19 17:22 106-46-70.50 0.25 1 Dichlorodifluoromethane <0.28 ug/L 12/29/19 17:22 75-71-80.50 0.28 1 1,1-Dichloroethane <0.24 ug/L 12/29/19 17:22 75-34-30.50 0.24 1 1,2-Dichloroethane <0.26 ug/L 12/29/19 17:22 107-06-20.50 0.26 1 1,1-Dichloroethene <0.22 ug/L 12/29/19 17:22 75-35-40.50 0.22 1 cis-1,2-Dichloroethene <0.21 ug/L 12/29/19 17:22 156-59-20.50 0.21 1 trans-1,2-Dichloroethene <0.26 ug/L 12/29/19 17:22 156-60-50.50 0.26 1 1,2-Dichloropropane <0.18 ug/L 12/29/19 17:22 78-87-50.50 0.18 1 1,3-Dichloropropane <0.34 ug/L 12/29/19 17:22 142-28-90.50 0.34 1 2,2-Dichloropropane <0.28 ug/L 12/29/19 17:22 594-20-70.50 0.28 1 1,1-Dichloropropene <0.35 ug/L 12/29/19 17:22 563-58-60.50 0.35 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/31/2019 09:03 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 8 of 30 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92458367 Southland Oil Sample:MW-6R Lab ID:92458367003 Collected:12/19/19 13:10 Received:12/20/19 12:10 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B6200B MSV cis-1,3-Dichloropropene <0.36 ug/L 12/29/19 17:22 10061-01-50.50 0.36 1 trans-1,3-Dichloropropene <0.39 ug/L 12/29/19 17:22 10061-02-60.50 0.39 1 Diisopropyl ether <0.33 ug/L 12/29/19 17:22 108-20-30.50 0.33 1 Ethylbenzene <0.24 ug/L 12/29/19 17:22 100-41-40.50 0.24 1 Hexachloro-1,3-butadiene <1.2 ug/L 12/29/19 17:22 87-68-32.0 1.2 1 2-Hexanone <0.60 ug/L 12/29/19 17:22 591-78-65.0 0.60 1 Isopropylbenzene (Cumene)<0.24 ug/L 12/29/19 17:22 98-82-80.50 0.24 1 Methylene Chloride <1.5 ug/L 12/29/19 17:22 75-09-22.0 1.5 1 Methyl-tert-butyl ether <0.44 ug/L 12/29/19 17:22 1634-04-40.50 0.44 1 Naphthalene <0.66 ug/L 12/29/19 17:22 91-20-32.0 0.66 1 n-Propylbenzene <0.24 ug/L 12/29/19 17:22 103-65-10.50 0.24 1 Styrene <0.26 ug/L 12/29/19 17:22 100-42-50.50 0.26 1 1,1,1,2-Tetrachloroethane <0.42 ug/L 12/29/19 17:22 630-20-60.50 0.42 1 1,1,2,2-Tetrachloroethane <0.19 ug/L 12/29/19 17:22 79-34-50.50 0.19 1 Tetrachloroethene <0.23 ug/L 12/29/19 17:22 127-18-40.50 0.23 1 Toluene <0.23 ug/L 12/29/19 17:22 108-88-30.50 0.23 1 1,2,3-Trichlorobenzene <0.78 ug/L 12/29/19 17:22 87-61-62.0 0.78 1 1,2,4-Trichlorobenzene <0.44 ug/L 12/29/19 17:22 120-82-12.0 0.44 1 1,1,1-Trichloroethane <0.28 ug/L 12/29/19 17:22 71-55-60.50 0.28 1 1,1,2-Trichloroethane <0.23 ug/L 12/29/19 17:22 79-00-50.50 0.23 1 Trichloroethene <0.23 ug/L 12/29/19 17:22 79-01-60.50 0.23 1 Trichlorofluoromethane <0.34 ug/L 12/29/19 17:22 75-69-41.0 0.34 1 1,2,3-Trichloropropane <0.27 ug/L 12/29/19 17:22 96-18-40.50 0.27 1 1,2,4-Trimethylbenzene <0.19 ug/L 12/29/19 17:22 95-63-60.50 0.19 1 1,3,5-Trimethylbenzene <0.23 ug/L 12/29/19 17:22 108-67-80.50 0.23 1 Vinyl chloride <0.41 ug/L 12/29/19 17:22 75-01-41.0 0.41 1 Xylene (Total)<0.50 ug/L 12/29/19 17:22 1330-20-71.0 0.50 1 m&p-Xylene <0.44 ug/L 12/29/19 17:22 179601-23-11.0 0.44 1 o-Xylene <0.24 ug/L 12/29/19 17:22 95-47-60.50 0.24 1 Surrogates 1,2-Dichloroethane-d4 (S)96 %12/29/19 17:22 17060-07-070-130 1 4-Bromofluorobenzene (S)98 %12/29/19 17:22 460-00-470-130 1 Toluene-d8 (S)101 %12/29/19 17:22 2037-26-570-130 1 Sample:MW-7R Lab ID:92458367004 Collected:12/19/19 12:20 Received:12/20/19 12:10 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B6200B MSV Benzene 463 ug/L 12/30/19 02:55 71-43-22.5 1.2 5 Bromobenzene <1.1 ug/L 12/30/19 02:55 108-86-12.5 1.1 5 Bromochloromethane <1.3 ug/L 12/30/19 02:55 74-97-52.5 1.3 5 Bromodichloromethane <0.92 ug/L 12/30/19 02:55 75-27-42.5 0.92 5 Bromoform <2.0 ug/L 12/30/19 02:55 75-25-22.5 2.0 5 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/31/2019 09:03 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 9 of 30 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92458367 Southland Oil Sample:MW-7R Lab ID:92458367004 Collected:12/19/19 12:20 Received:12/20/19 12:10 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B6200B MSV Bromomethane <8.6 ug/L 12/30/19 02:55 74-83-925.0 8.6 5 2-Butanone (MEK)182 ug/L 12/30/19 02:55 78-93-325.0 18.0 5 n-Butylbenzene <1.8 ug/L 12/30/19 02:55 104-51-82.5 1.8 5 sec-Butylbenzene <1.2 ug/L 12/30/19 02:55 135-98-82.5 1.2 5 tert-Butylbenzene <1.2 ug/L 12/30/19 02:55 98-06-62.5 1.2 5 Carbon tetrachloride <1.2 ug/L 12/30/19 02:55 56-23-52.5 1.2 5 Chlorobenzene <1.1 ug/L 12/30/19 02:55 108-90-72.5 1.1 5 Chloroethane <2.9 ug/L 12/30/19 02:55 75-00-35.0 2.9 5 Chloroform <1.8 ug/L 12/30/19 02:55 67-66-32.5 1.8 5 Chloromethane <2.1 ug/L 12/30/19 02:55 74-87-35.0 2.1 5 2-Chlorotoluene <1.0 ug/L 12/30/19 02:55 95-49-82.5 1.0 5 4-Chlorotoluene <1.0 ug/L 12/30/19 02:55 106-43-42.5 1.0 5 1,2-Dibromo-3-chloropropane <1.9 ug/L 12/30/19 02:55 96-12-85.0 1.9 5 Dibromochloromethane <2.0 ug/L 12/30/19 02:55 124-48-12.5 2.0 5 1,2-Dibromoethane (EDB)<1.2 ug/L 12/30/19 02:55 106-93-42.5 1.2 5 Dibromomethane <1.6 ug/L 12/30/19 02:55 74-95-32.5 1.6 5 1,2-Dichlorobenzene <1.2 ug/L 12/30/19 02:55 95-50-12.5 1.2 5 1,3-Dichlorobenzene <1.2 ug/L 12/30/19 02:55 541-73-12.5 1.2 5 1,4-Dichlorobenzene <1.2 ug/L 12/30/19 02:55 106-46-72.5 1.2 5 Dichlorodifluoromethane <1.4 ug/L 12/30/19 02:55 75-71-82.5 1.4 5 1,1-Dichloroethane <1.2 ug/L 12/30/19 02:55 75-34-32.5 1.2 5 1,2-Dichloroethane <1.3 ug/L 12/30/19 02:55 107-06-22.5 1.3 5 1,1-Dichloroethene <1.1 ug/L 12/30/19 02:55 75-35-42.5 1.1 5 cis-1,2-Dichloroethene 3.2 ug/L 12/30/19 02:55 156-59-22.5 1.0 5 trans-1,2-Dichloroethene <1.3 ug/L 12/30/19 02:55 156-60-52.5 1.3 5 1,2-Dichloropropane <0.92 ug/L 12/30/19 02:55 78-87-52.5 0.92 5 1,3-Dichloropropane <1.7 ug/L 12/30/19 02:55 142-28-92.5 1.7 5 2,2-Dichloropropane <1.4 ug/L 12/30/19 02:55 594-20-72.5 1.4 5 1,1-Dichloropropene <1.7 ug/L 12/30/19 02:55 563-58-62.5 1.7 5 cis-1,3-Dichloropropene <1.8 ug/L 12/30/19 02:55 10061-01-52.5 1.8 5 trans-1,3-Dichloropropene <2.0 ug/L 12/30/19 02:55 10061-02-62.5 2.0 5 Diisopropyl ether 4.0 ug/L 12/30/19 02:55 108-20-32.5 1.7 5 Ethylbenzene 273 ug/L 12/30/19 02:55 100-41-42.5 1.2 5 Hexachloro-1,3-butadiene <6.0 ug/L 12/30/19 02:55 87-68-310.0 6.0 5 2-Hexanone 311 ug/L 12/30/19 02:55 591-78-625.0 3.0 5 Isopropylbenzene (Cumene)15.7 ug/L 12/30/19 02:55 98-82-82.5 1.2 5 Methylene Chloride <7.5 ug/L 12/30/19 02:55 75-09-210.0 7.5 5 Methyl-tert-butyl ether 510 ug/L 12/30/19 02:55 1634-04-42.5 2.2 5 Naphthalene 125 ug/L 12/30/19 02:55 91-20-310.0 3.3 5 n-Propylbenzene 31.8 ug/L 12/30/19 02:55 103-65-12.5 1.2 5 Styrene <1.3 ug/L 12/30/19 02:55 100-42-52.5 1.3 5 1,1,1,2-Tetrachloroethane <2.1 ug/L 12/30/19 02:55 630-20-62.5 2.1 5 1,1,2,2-Tetrachloroethane <0.96 ug/L 12/30/19 02:55 79-34-52.5 0.96 5 Tetrachloroethene 15.9 ug/L 12/30/19 02:55 127-18-42.5 1.2 5 Toluene 961 ug/L 12/30/19 02:55 108-88-32.5 1.1 5 1,2,3-Trichlorobenzene <3.9 ug/L 12/30/19 02:55 87-61-610.0 3.9 5 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/31/2019 09:03 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 10 of 30 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92458367 Southland Oil Sample:MW-7R Lab ID:92458367004 Collected:12/19/19 12:20 Received:12/20/19 12:10 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B6200B MSV 1,2,4-Trichlorobenzene <2.2 ug/L 12/30/19 02:55 120-82-110.0 2.2 5 1,1,1-Trichloroethane <1.4 ug/L 12/30/19 02:55 71-55-62.5 1.4 5 1,1,2-Trichloroethane <1.2 ug/L 12/30/19 02:55 79-00-52.5 1.2 5 Trichloroethene 3.2 ug/L 12/30/19 02:55 79-01-62.5 1.2 5 Trichlorofluoromethane <1.7 ug/L 12/30/19 02:55 75-69-45.0 1.7 5 1,2,3-Trichloropropane <1.4 ug/L 12/30/19 02:55 96-18-42.5 1.4 5 1,2,4-Trimethylbenzene 314 ug/L 12/30/19 02:55 95-63-62.5 0.96 5 1,3,5-Trimethylbenzene 51.5 ug/L 12/30/19 02:55 108-67-82.5 1.1 5 Vinyl chloride <2.0 ug/L 12/30/19 02:55 75-01-45.0 2.0 5 Xylene (Total)1710 ug/L 12/30/19 02:55 1330-20-75.0 2.5 5 m&p-Xylene 951 ug/L 12/30/19 02:55 179601-23-15.0 2.2 5 o-Xylene 757 ug/L 12/30/19 02:55 95-47-62.5 1.2 5 Surrogates 1,2-Dichloroethane-d4 (S)105 %12/30/19 02:55 17060-07-070-130 5 4-Bromofluorobenzene (S)115 %12/30/19 02:55 460-00-470-130 5 Toluene-d8 (S)99 %12/30/19 02:55 2037-26-570-130 5 Sample:Field Blank Lab ID:92458367005 Collected:12/19/19 13:30 Received:12/20/19 12:10 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B6200B MSV Benzene <0.24 ug/L 12/29/19 16:47 71-43-20.50 0.24 1 Bromobenzene <0.22 ug/L 12/29/19 16:47 108-86-10.50 0.22 1 Bromochloromethane <0.26 ug/L 12/29/19 16:47 74-97-50.50 0.26 1 Bromodichloromethane <0.18 ug/L 12/29/19 16:47 75-27-40.50 0.18 1 Bromoform <0.40 ug/L 12/29/19 16:47 75-25-20.50 0.40 1 Bromomethane <1.7 ug/L 12/29/19 16:47 74-83-95.0 1.7 1 2-Butanone (MEK)<3.6 ug/L 12/29/19 16:47 78-93-35.0 3.6 1 n-Butylbenzene <0.35 ug/L 12/29/19 16:47 104-51-80.50 0.35 1 sec-Butylbenzene <0.25 ug/L 12/29/19 16:47 135-98-80.50 0.25 1 tert-Butylbenzene <0.25 ug/L 12/29/19 16:47 98-06-60.50 0.25 1 Carbon tetrachloride <0.23 ug/L 12/29/19 16:47 56-23-50.50 0.23 1 Chlorobenzene <0.22 ug/L 12/29/19 16:47 108-90-70.50 0.22 1 Chloroethane <0.58 ug/L 12/29/19 16:47 75-00-31.0 0.58 1 Chloroform <0.35 ug/L 12/29/19 16:47 67-66-30.50 0.35 1 Chloromethane <0.42 ug/L 12/29/19 16:47 74-87-31.0 0.42 1 2-Chlorotoluene <0.21 ug/L 12/29/19 16:47 95-49-80.50 0.21 1 4-Chlorotoluene <0.21 ug/L 12/29/19 16:47 106-43-40.50 0.21 1 1,2-Dibromo-3-chloropropane <0.38 ug/L 12/29/19 16:47 96-12-81.0 0.38 1 Dibromochloromethane <0.40 ug/L 12/29/19 16:47 124-48-10.50 0.40 1 1,2-Dibromoethane (EDB)<0.23 ug/L 12/29/19 16:47 106-93-40.50 0.23 1 Dibromomethane <0.31 ug/L 12/29/19 16:47 74-95-30.50 0.31 1 1,2-Dichlorobenzene <0.24 ug/L 12/29/19 16:47 95-50-10.50 0.24 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/31/2019 09:03 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 11 of 30 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92458367 Southland Oil Sample:Field Blank Lab ID:92458367005 Collected:12/19/19 13:30 Received:12/20/19 12:10 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B6200B MSV 1,3-Dichlorobenzene <0.25 ug/L 12/29/19 16:47 541-73-10.50 0.25 1 1,4-Dichlorobenzene <0.25 ug/L 12/29/19 16:47 106-46-70.50 0.25 1 Dichlorodifluoromethane <0.28 ug/L 12/29/19 16:47 75-71-80.50 0.28 1 1,1-Dichloroethane <0.24 ug/L 12/29/19 16:47 75-34-30.50 0.24 1 1,2-Dichloroethane <0.26 ug/L 12/29/19 16:47 107-06-20.50 0.26 1 1,1-Dichloroethene <0.22 ug/L 12/29/19 16:47 75-35-40.50 0.22 1 cis-1,2-Dichloroethene <0.21 ug/L 12/29/19 16:47 156-59-20.50 0.21 1 trans-1,2-Dichloroethene <0.26 ug/L 12/29/19 16:47 156-60-50.50 0.26 1 1,2-Dichloropropane <0.18 ug/L 12/29/19 16:47 78-87-50.50 0.18 1 1,3-Dichloropropane <0.34 ug/L 12/29/19 16:47 142-28-90.50 0.34 1 2,2-Dichloropropane <0.28 ug/L 12/29/19 16:47 594-20-70.50 0.28 1 1,1-Dichloropropene <0.35 ug/L 12/29/19 16:47 563-58-60.50 0.35 1 cis-1,3-Dichloropropene <0.36 ug/L 12/29/19 16:47 10061-01-50.50 0.36 1 trans-1,3-Dichloropropene <0.39 ug/L 12/29/19 16:47 10061-02-60.50 0.39 1 Diisopropyl ether <0.33 ug/L 12/29/19 16:47 108-20-30.50 0.33 1 Ethylbenzene <0.24 ug/L 12/29/19 16:47 100-41-40.50 0.24 1 Hexachloro-1,3-butadiene <1.2 ug/L 12/29/19 16:47 87-68-32.0 1.2 1 2-Hexanone <0.60 ug/L 12/29/19 16:47 591-78-65.0 0.60 1 Isopropylbenzene (Cumene)<0.24 ug/L 12/29/19 16:47 98-82-80.50 0.24 1 Methylene Chloride <1.5 ug/L 12/29/19 16:47 75-09-22.0 1.5 1 Methyl-tert-butyl ether <0.44 ug/L 12/29/19 16:47 1634-04-40.50 0.44 1 Naphthalene <0.66 ug/L 12/29/19 16:47 91-20-32.0 0.66 1 n-Propylbenzene <0.24 ug/L 12/29/19 16:47 103-65-10.50 0.24 1 Styrene <0.26 ug/L 12/29/19 16:47 100-42-50.50 0.26 1 1,1,1,2-Tetrachloroethane <0.42 ug/L 12/29/19 16:47 630-20-60.50 0.42 1 1,1,2,2-Tetrachloroethane <0.19 ug/L 12/29/19 16:47 79-34-50.50 0.19 1 Tetrachloroethene <0.23 ug/L 12/29/19 16:47 127-18-40.50 0.23 1 Toluene <0.23 ug/L 12/29/19 16:47 108-88-30.50 0.23 1 1,2,3-Trichlorobenzene <0.78 ug/L 12/29/19 16:47 87-61-62.0 0.78 1 1,2,4-Trichlorobenzene <0.44 ug/L 12/29/19 16:47 120-82-12.0 0.44 1 1,1,1-Trichloroethane <0.28 ug/L 12/29/19 16:47 71-55-60.50 0.28 1 1,1,2-Trichloroethane <0.23 ug/L 12/29/19 16:47 79-00-50.50 0.23 1 Trichloroethene <0.23 ug/L 12/29/19 16:47 79-01-60.50 0.23 1 Trichlorofluoromethane <0.34 ug/L 12/29/19 16:47 75-69-41.0 0.34 1 1,2,3-Trichloropropane <0.27 ug/L 12/29/19 16:47 96-18-40.50 0.27 1 1,2,4-Trimethylbenzene <0.19 ug/L 12/29/19 16:47 95-63-60.50 0.19 1 1,3,5-Trimethylbenzene <0.23 ug/L 12/29/19 16:47 108-67-80.50 0.23 1 Vinyl chloride <0.41 ug/L 12/29/19 16:47 75-01-41.0 0.41 1 Xylene (Total)<0.50 ug/L 12/29/19 16:47 1330-20-71.0 0.50 1 m&p-Xylene <0.44 ug/L 12/29/19 16:47 179601-23-11.0 0.44 1 o-Xylene <0.24 ug/L 12/29/19 16:47 95-47-60.50 0.24 1 Surrogates 1,2-Dichloroethane-d4 (S)92 %12/29/19 16:47 17060-07-070-130 1 4-Bromofluorobenzene (S)97 %12/29/19 16:47 460-00-470-130 1 Toluene-d8 (S)101 %12/29/19 16:47 2037-26-570-130 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/31/2019 09:03 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 12 of 30 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92458367 Southland Oil Sample:MW-8 Lab ID:92458367006 Collected:12/19/19 13:25 Received:12/20/19 12:10 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B6200B MSV Benzene <0.24 ug/L 12/29/19 17:40 71-43-20.50 0.24 1 Bromobenzene <0.22 ug/L 12/29/19 17:40 108-86-10.50 0.22 1 Bromochloromethane <0.26 ug/L 12/29/19 17:40 74-97-50.50 0.26 1 Bromodichloromethane <0.18 ug/L 12/29/19 17:40 75-27-40.50 0.18 1 Bromoform <0.40 ug/L 12/29/19 17:40 75-25-20.50 0.40 1 Bromomethane <1.7 ug/L 12/29/19 17:40 74-83-95.0 1.7 1 2-Butanone (MEK)<3.6 ug/L 12/29/19 17:40 78-93-35.0 3.6 1 n-Butylbenzene <0.35 ug/L 12/29/19 17:40 104-51-80.50 0.35 1 sec-Butylbenzene <0.25 ug/L 12/29/19 17:40 135-98-80.50 0.25 1 tert-Butylbenzene <0.25 ug/L 12/29/19 17:40 98-06-60.50 0.25 1 Carbon tetrachloride <0.23 ug/L 12/29/19 17:40 56-23-50.50 0.23 1 Chlorobenzene <0.22 ug/L 12/29/19 17:40 108-90-70.50 0.22 1 Chloroethane <0.58 ug/L 12/29/19 17:40 75-00-31.0 0.58 1 Chloroform <0.35 ug/L 12/29/19 17:40 67-66-30.50 0.35 1 Chloromethane <0.42 ug/L 12/29/19 17:40 74-87-31.0 0.42 1 2-Chlorotoluene <0.21 ug/L 12/29/19 17:40 95-49-80.50 0.21 1 4-Chlorotoluene <0.21 ug/L 12/29/19 17:40 106-43-40.50 0.21 1 1,2-Dibromo-3-chloropropane <0.38 ug/L 12/29/19 17:40 96-12-81.0 0.38 1 Dibromochloromethane <0.40 ug/L 12/29/19 17:40 124-48-10.50 0.40 1 1,2-Dibromoethane (EDB)<0.23 ug/L 12/29/19 17:40 106-93-40.50 0.23 1 Dibromomethane <0.31 ug/L 12/29/19 17:40 74-95-30.50 0.31 1 1,2-Dichlorobenzene <0.24 ug/L 12/29/19 17:40 95-50-10.50 0.24 1 1,3-Dichlorobenzene <0.25 ug/L 12/29/19 17:40 541-73-10.50 0.25 1 1,4-Dichlorobenzene <0.25 ug/L 12/29/19 17:40 106-46-70.50 0.25 1 Dichlorodifluoromethane <0.28 ug/L 12/29/19 17:40 75-71-80.50 0.28 1 1,1-Dichloroethane <0.24 ug/L 12/29/19 17:40 75-34-30.50 0.24 1 1,2-Dichloroethane <0.26 ug/L 12/29/19 17:40 107-06-20.50 0.26 1 1,1-Dichloroethene <0.22 ug/L 12/29/19 17:40 75-35-40.50 0.22 1 cis-1,2-Dichloroethene <0.21 ug/L 12/29/19 17:40 156-59-20.50 0.21 1 trans-1,2-Dichloroethene <0.26 ug/L 12/29/19 17:40 156-60-50.50 0.26 1 1,2-Dichloropropane <0.18 ug/L 12/29/19 17:40 78-87-50.50 0.18 1 1,3-Dichloropropane <0.34 ug/L 12/29/19 17:40 142-28-90.50 0.34 1 2,2-Dichloropropane <0.28 ug/L 12/29/19 17:40 594-20-70.50 0.28 1 1,1-Dichloropropene <0.35 ug/L 12/29/19 17:40 563-58-60.50 0.35 1 cis-1,3-Dichloropropene <0.36 ug/L 12/29/19 17:40 10061-01-50.50 0.36 1 trans-1,3-Dichloropropene <0.39 ug/L 12/29/19 17:40 10061-02-60.50 0.39 1 Diisopropyl ether <0.33 ug/L 12/29/19 17:40 108-20-30.50 0.33 1 Ethylbenzene <0.24 ug/L 12/29/19 17:40 100-41-40.50 0.24 1 Hexachloro-1,3-butadiene <1.2 ug/L 12/29/19 17:40 87-68-32.0 1.2 1 2-Hexanone <0.60 ug/L 12/29/19 17:40 591-78-65.0 0.60 1 Isopropylbenzene (Cumene)<0.24 ug/L 12/29/19 17:40 98-82-80.50 0.24 1 Methylene Chloride <1.5 ug/L 12/29/19 17:40 75-09-22.0 1.5 1 Methyl-tert-butyl ether <0.44 ug/L 12/29/19 17:40 1634-04-40.50 0.44 1 Naphthalene <0.66 ug/L 12/29/19 17:40 91-20-32.0 0.66 1 n-Propylbenzene <0.24 ug/L 12/29/19 17:40 103-65-10.50 0.24 1 Styrene <0.26 ug/L 12/29/19 17:40 100-42-50.50 0.26 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/31/2019 09:03 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 13 of 30 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92458367 Southland Oil Sample:MW-8 Lab ID:92458367006 Collected:12/19/19 13:25 Received:12/20/19 12:10 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B6200B MSV 1,1,1,2-Tetrachloroethane <0.42 ug/L 12/29/19 17:40 630-20-60.50 0.42 1 1,1,2,2-Tetrachloroethane <0.19 ug/L 12/29/19 17:40 79-34-50.50 0.19 1 Tetrachloroethene <0.23 ug/L 12/29/19 17:40 127-18-40.50 0.23 1 Toluene <0.23 ug/L 12/29/19 17:40 108-88-30.50 0.23 1 1,2,3-Trichlorobenzene <0.78 ug/L 12/29/19 17:40 87-61-62.0 0.78 1 1,2,4-Trichlorobenzene <0.44 ug/L 12/29/19 17:40 120-82-12.0 0.44 1 1,1,1-Trichloroethane <0.28 ug/L 12/29/19 17:40 71-55-60.50 0.28 1 1,1,2-Trichloroethane <0.23 ug/L 12/29/19 17:40 79-00-50.50 0.23 1 Trichloroethene <0.23 ug/L 12/29/19 17:40 79-01-60.50 0.23 1 Trichlorofluoromethane <0.34 ug/L 12/29/19 17:40 75-69-41.0 0.34 1 1,2,3-Trichloropropane <0.27 ug/L 12/29/19 17:40 96-18-40.50 0.27 1 1,2,4-Trimethylbenzene <0.19 ug/L 12/29/19 17:40 95-63-60.50 0.19 1 1,3,5-Trimethylbenzene <0.23 ug/L 12/29/19 17:40 108-67-80.50 0.23 1 Vinyl chloride <0.41 ug/L 12/29/19 17:40 75-01-41.0 0.41 1 Xylene (Total)<0.50 ug/L 12/29/19 17:40 1330-20-71.0 0.50 1 m&p-Xylene <0.44 ug/L 12/29/19 17:40 179601-23-11.0 0.44 1 o-Xylene <0.24 ug/L 12/29/19 17:40 95-47-60.50 0.24 1 Surrogates 1,2-Dichloroethane-d4 (S)95 %12/29/19 17:40 17060-07-070-130 1 4-Bromofluorobenzene (S)99 %12/29/19 17:40 460-00-470-130 1 Toluene-d8 (S)102 %12/29/19 17:40 2037-26-570-130 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/31/2019 09:03 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 14 of 30 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92458367 Southland Oil Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 517123 SM 6200B SM 6200B 6200B MSV Associated Lab Samples:92458367001, 92458367003, 92458367005, 92458367006 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:2769513 Associated Lab Samples:92458367001, 92458367003, 92458367005, 92458367006 Matrix:Water AnalyzedMDL 1,1,1,2-Tetrachloroethane ug/L <0.42 0.50 12/29/19 15:530.42 1,1,1-Trichloroethane ug/L <0.28 0.50 12/29/19 15:530.28 1,1,2,2-Tetrachloroethane ug/L <0.19 0.50 12/29/19 15:530.19 1,1,2-Trichloroethane ug/L <0.23 0.50 12/29/19 15:530.23 1,1-Dichloroethane ug/L <0.24 0.50 12/29/19 15:530.24 1,1-Dichloroethene ug/L <0.22 0.50 12/29/19 15:530.22 1,1-Dichloropropene ug/L <0.35 0.50 12/29/19 15:530.35 1,2,3-Trichlorobenzene ug/L <0.78 2.0 12/29/19 15:530.78 1,2,3-Trichloropropane ug/L <0.27 0.50 12/29/19 15:530.27 1,2,4-Trichlorobenzene ug/L <0.44 2.0 12/29/19 15:530.44 1,2,4-Trimethylbenzene ug/L <0.19 0.50 12/29/19 15:530.19 1,2-Dibromo-3-chloropropane ug/L <0.38 1.0 12/29/19 15:530.38 1,2-Dibromoethane (EDB)ug/L <0.23 0.50 12/29/19 15:530.23 1,2-Dichlorobenzene ug/L <0.24 0.50 12/29/19 15:530.24 1,2-Dichloroethane ug/L <0.26 0.50 12/29/19 15:530.26 1,2-Dichloropropane ug/L <0.18 0.50 12/29/19 15:530.18 1,3,5-Trimethylbenzene ug/L <0.23 0.50 12/29/19 15:530.23 1,3-Dichlorobenzene ug/L <0.25 0.50 12/29/19 15:530.25 1,3-Dichloropropane ug/L <0.34 0.50 12/29/19 15:530.34 1,4-Dichlorobenzene ug/L <0.25 0.50 12/29/19 15:530.25 2,2-Dichloropropane ug/L <0.28 0.50 12/29/19 15:530.28 2-Butanone (MEK)ug/L <3.6 5.0 12/29/19 15:533.6 2-Chlorotoluene ug/L <0.21 0.50 12/29/19 15:530.21 2-Hexanone ug/L <0.60 5.0 12/29/19 15:530.60 4-Chlorotoluene ug/L <0.21 0.50 12/29/19 15:530.21 Benzene ug/L <0.24 0.50 12/29/19 15:530.24 Bromobenzene ug/L <0.22 0.50 12/29/19 15:530.22 Bromochloromethane ug/L <0.26 0.50 12/29/19 15:530.26 Bromodichloromethane ug/L <0.18 0.50 12/29/19 15:530.18 Bromoform ug/L <0.40 0.50 12/29/19 15:530.40 Bromomethane ug/L <1.7 5.0 12/29/19 15:531.7 Carbon tetrachloride ug/L <0.23 0.50 12/29/19 15:530.23 Chlorobenzene ug/L <0.22 0.50 12/29/19 15:530.22 Chloroethane ug/L <0.58 1.0 12/29/19 15:530.58 Chloroform ug/L <0.35 0.50 12/29/19 15:530.35 Chloromethane ug/L <0.42 1.0 12/29/19 15:530.42 cis-1,2-Dichloroethene ug/L <0.21 0.50 12/29/19 15:530.21 cis-1,3-Dichloropropene ug/L <0.36 0.50 12/29/19 15:530.36 Dibromochloromethane ug/L <0.40 0.50 12/29/19 15:530.40 Dibromomethane ug/L <0.31 0.50 12/29/19 15:530.31 Dichlorodifluoromethane ug/L <0.28 0.50 12/29/19 15:530.28 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/31/2019 09:03 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 15 of 30 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92458367 Southland Oil Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:2769513 Associated Lab Samples:92458367001, 92458367003, 92458367005, 92458367006 Matrix:Water AnalyzedMDL Diisopropyl ether ug/L <0.33 0.50 12/29/19 15:530.33 Ethylbenzene ug/L <0.24 0.50 12/29/19 15:530.24 Hexachloro-1,3-butadiene ug/L <1.2 2.0 12/29/19 15:531.2 Isopropylbenzene (Cumene)ug/L <0.24 0.50 12/29/19 15:530.24 m&p-Xylene ug/L <0.44 1.0 12/29/19 15:530.44 Methyl-tert-butyl ether ug/L <0.44 0.50 12/29/19 15:530.44 Methylene Chloride ug/L <1.5 2.0 12/29/19 15:531.5 n-Butylbenzene ug/L <0.35 0.50 12/29/19 15:530.35 n-Propylbenzene ug/L <0.24 0.50 12/29/19 15:530.24 Naphthalene ug/L <0.66 2.0 12/29/19 15:530.66 o-Xylene ug/L <0.24 0.50 12/29/19 15:530.24 sec-Butylbenzene ug/L <0.25 0.50 12/29/19 15:530.25 Styrene ug/L <0.26 0.50 12/29/19 15:530.26 tert-Butylbenzene ug/L <0.25 0.50 12/29/19 15:530.25 Tetrachloroethene ug/L <0.23 0.50 12/29/19 15:530.23 Toluene ug/L <0.23 0.50 12/29/19 15:530.23 trans-1,2-Dichloroethene ug/L <0.26 0.50 12/29/19 15:530.26 trans-1,3-Dichloropropene ug/L <0.39 0.50 12/29/19 15:530.39 Trichloroethene ug/L <0.23 0.50 12/29/19 15:530.23 Trichlorofluoromethane ug/L <0.34 1.0 12/29/19 15:530.34 Vinyl chloride ug/L <0.41 1.0 12/29/19 15:530.41 Xylene (Total)ug/L <0.50 1.0 12/29/19 15:530.50 1,2-Dichloroethane-d4 (S)%97 70-130 12/29/19 15:53 4-Bromofluorobenzene (S)%97 70-130 12/29/19 15:53 Toluene-d8 (S)%103 70-130 12/29/19 15:53 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 2769514LABORATORY CONTROL SAMPLE: LCSSpike 1,1,1,2-Tetrachloroethane ug/L 50.850 102 60-140 1,1,1-Trichloroethane ug/L 50.250 100 60-140 1,1,2,2-Tetrachloroethane ug/L 48.750 97 60-140 1,1,2-Trichloroethane ug/L 49.550 99 60-140 1,1-Dichloroethane ug/L 47.250 94 60-140 1,1-Dichloroethene ug/L 48.750 97 60-140 1,1-Dichloropropene ug/L 52.950 106 60-140 1,2,3-Trichlorobenzene ug/L 50.250 100 60-140 1,2,3-Trichloropropane ug/L 48.250 96 60-140 1,2,4-Trichlorobenzene ug/L 49.950 100 60-140 1,2,4-Trimethylbenzene ug/L 49.350 99 60-140 1,2-Dibromo-3-chloropropane ug/L 51.050 102 60-140 1,2-Dibromoethane (EDB)ug/L 50.850 102 60-140 1,2-Dichlorobenzene ug/L 49.550 99 60-140 1,2-Dichloroethane ug/L 45.450 91 60-140 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/31/2019 09:03 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 16 of 30 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92458367 Southland Oil Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 2769514LABORATORY CONTROL SAMPLE: LCSSpike 1,2-Dichloropropane ug/L 49.350 99 60-140 1,3,5-Trimethylbenzene ug/L 48.950 98 60-140 1,3-Dichlorobenzene ug/L 49.050 98 60-140 1,3-Dichloropropane ug/L 50.650 101 60-140 1,4-Dichlorobenzene ug/L 49.350 99 60-140 2,2-Dichloropropane ug/L 55.350 111 60-140 2-Butanone (MEK)ug/L 98.6100 99 60-140 2-Chlorotoluene ug/L 47.950 96 60-140 2-Hexanone ug/L 102100 102 60-140 4-Chlorotoluene ug/L 48.750 97 60-140 Benzene ug/L 49.250 98 60-140 Bromobenzene ug/L 49.350 99 60-140 Bromochloromethane ug/L 48.750 97 60-140 Bromodichloromethane ug/L 50.950 102 60-140 Bromoform ug/L 52.350 105 60-140 Bromomethane ug/L 61.250 122 60-140 Carbon tetrachloride ug/L 51.450 103 60-140 Chlorobenzene ug/L 49.050 98 60-140 Chloroethane ug/L 35.150 70 60-140 Chloroform ug/L 46.750 93 60-140 Chloromethane ug/L 33.550 67 60-140 cis-1,2-Dichloroethene ug/L 47.050 94 60-140 cis-1,3-Dichloropropene ug/L 53.450 107 60-140 Dibromochloromethane ug/L 51.850 104 60-140 Dibromomethane ug/L 47.750 95 60-140 Dichlorodifluoromethane ug/L 41.650 83 60-140 Diisopropyl ether ug/L 47.550 95 60-140 Ethylbenzene ug/L 48.150 96 60-140 Hexachloro-1,3-butadiene ug/L 50.250 100 60-140 Isopropylbenzene (Cumene)ug/L 49.250 98 60-140 m&p-Xylene ug/L 97.4100 97 60-140 Methyl-tert-butyl ether ug/L 50.150 100 60-140 Methylene Chloride ug/L 44.550 89 60-140 n-Butylbenzene ug/L 50.550 101 60-140 n-Propylbenzene ug/L 47.150 94 60-140 Naphthalene ug/L 48.750 97 60-140 o-Xylene ug/L 48.850 98 60-140 sec-Butylbenzene ug/L 48.950 98 60-140 Styrene ug/L 50.150 100 60-140 tert-Butylbenzene ug/L 41.850 84 60-140 Tetrachloroethene ug/L 48.650 97 60-140 Toluene ug/L 47.350 95 60-140 trans-1,2-Dichloroethene ug/L 47.250 94 60-140 trans-1,3-Dichloropropene ug/L 53.250 106 60-140 Trichloroethene ug/L 48.750 97 60-140 Trichlorofluoromethane ug/L 42.350 85 60-140 Vinyl chloride ug/L 43.450 87 60-140 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/31/2019 09:03 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 17 of 30 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92458367 Southland Oil Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 2769514LABORATORY CONTROL SAMPLE: LCSSpike Xylene (Total)ug/L 146150 97 60-140 1,2-Dichloroethane-d4 (S)%99 70-130 4-Bromofluorobenzene (S)%102 70-130 Toluene-d8 (S)%97 70-130 Parameter Units MS Result % Rec Limits Qual% RecConc. 2769515MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92457678010 2769516 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. 1,1,1,2-Tetrachloroethane ug/L 8000 107 60-140116 8 308000ND85309250 1,1,1-Trichloroethane ug/L 8000 109 60-140117 7 308000ND87409390 1,1,2,2-Tetrachloroethane ug/L 8000 108 60-140115 6 308000ND86709180 1,1,2-Trichloroethane ug/L 8000 110 60-140115 4 308000ND87909160 1,1-Dichloroethane ug/L 8000 104 60-140109 4 308000ND83408690 1,1-Dichloroethene ug/L 8000 124 60-140130 5 308000ND989010400 1,1-Dichloropropene ug/L 8000 116 60-140124 6 308000ND93109900 1,2,3-Trichlorobenzene ug/L 8000 109 60-140117 7 308000ND87009330 1,2,3-Trichloropropane ug/L 8000 108 60-140113 5 308000ND86109010 1,2,4-Trichlorobenzene ug/L 8000 105 60-140117 11 308000ND83909380 1,2,4-Trimethylbenzene ug/L 8000 111 60-140116 3 30800032201210012500 1,2-Dibromo-3- chloropropane ug/L 8000 105 60-140115 9 308000ND83809190 1,2-Dibromoethane (EDB)ug/L 8000 107 60-140113 5 308000ND85909050 1,2-Dichlorobenzene ug/L 8000 108 60-140112 4 308000ND86308970 1,2-Dichloroethane ug/L 8000 105 60-140103 1 308000ND83608250 1,2-Dichloropropane ug/L 8000 113 60-140115 2 308000ND90309180 1,3,5-Trimethylbenzene ug/L 8000 123 60-140127 4 308000ND981010200 1,3-Dichlorobenzene ug/L 8000 106 60-140113 7 308000ND84909060 1,3-Dichloropropane ug/L 8000 116 60-140119 3 308000ND92509530 1,4-Dichlorobenzene ug/L 8000 106 60-140113 7 308000ND84709040 2,2-Dichloropropane ug/L 8000 109 60-140116 7 308000ND86909320 2-Butanone (MEK)ug/L 16000 94 60-140103 7 301600048501990021400 2-Chlorotoluene ug/L 8000 113 60-140114 0 308000ND90609090 2-Hexanone ug/L 16000 113 60-140114 0 3016000ND1840018400 4-Chlorotoluene ug/L 8000 108 60-140117 9 308000ND86209390 Benzene ug/L 8000 114 60-140104 3 308000156002470023900 Bromobenzene ug/L 8000 109 60-140117 7 308000ND87109370 Bromochloromethane ug/L 8000 103 60-140112 9 308000ND82208960 Bromodichloromethane ug/L 8000 111 60-140114 2 308000ND89009130 Bromoform ug/L 8000 104 60-140112 8 308000ND82908970 Bromomethane ug/L R180006960-140112 48 308000ND54908970 Carbon tetrachloride ug/L 8000 113 60-140117 3 308000ND90709370 Chlorobenzene ug/L 8000 106 60-140114 7 308000ND85009130 Chloroethane ug/L 8000 104 60-140102 3 308000ND83608120 Chloroform ug/L 8000 107 60-140111 3 30800072393209620 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/31/2019 09:03 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 18 of 30 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92458367 Southland Oil Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 2769515MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92457678010 2769516 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. Chloromethane ug/L 8000 72 60-14083 14 308000ND57406630 cis-1,2-Dichloroethene ug/L 8000 105 60-140111 5 308000ND84308910 cis-1,3-Dichloropropene ug/L 8000 110 60-140120 8 308000ND88309560 Dibromochloromethane ug/L 8000 110 60-140116 5 308000ND88109270 Dibromomethane ug/L 8000 101 60-140110 8 308000ND81008780 Dichlorodifluoromethane ug/L 8000 83 60-14091 9 308000ND66607270 Diisopropyl ether ug/L 8000 105 60-140109 3 30800028001120011500 Ethylbenzene ug/L 8000 104 60-140113 6 30800041501240013200 Hexachloro-1,3-butadiene ug/L 8000 108 60-140118 8 308000ND86409400 Isopropylbenzene(Cumene)ug/L 8000 114 60-140118 4 308000ND90809430 m&p-Xylene ug/L 16000 113 60-140119 3 3016000131003120032300 Methyl-tert-butyl ether ug/L 8000 110 60-140107 3 30800046492309000 Methylene Chloride ug/L 8000 103 60-14088 15 308000ND82107070 n-Butylbenzene ug/L 8000 112 60-140120 7 308000ND89609560 n-Propylbenzene ug/L 8000 111 60-140116 4 308000ND89109250 Naphthalene ug/L 8000 98 60-140110 10 3080001300912010100 o-Xylene ug/L 8000 113 60-140117 2 30800061801520015500 sec-Butylbenzene ug/L 8000 110 60-140120 8 308000ND88409600 Styrene ug/L 8000 108 60-140113 4 308000ND86809050 tert-Butylbenzene ug/L 8000 96 60-140102 6 308000ND76908150 Tetrachloroethene ug/L 8000 106 60-140113 7 308000ND84609060 Toluene ug/L M180005660-14085 4 308000496005400056400 trans-1,2-Dichloroethene ug/L 8000 115 60-140106 9 308000ND92108460 trans-1,3-Dichloropropene ug/L 8000 108 60-140113 4 308000ND86709060 Trichloroethene ug/L 8000 109 60-140115 5 308000ND87109170 Trichlorofluoromethane ug/L 8000 107 60-140114 7 308000ND85309120 Vinyl chloride ug/L 8000 102 60-140108 6 308000ND81308640 Xylene (Total)ug/L 24000 113 60-140119 3 3024000193004640047800 1,2-Dichloroethane-d4 (S)%103 70-13094 4-Bromofluorobenzene (S)%104 70-130104 Toluene-d8 (S)%96 70-13097 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/31/2019 09:03 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 19 of 30 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92458367 Southland Oil Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 517125 SM 6200B SM 6200B 6200B MSV Associated Lab Samples:92458367002, 92458367004 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:2769523 Associated Lab Samples:92458367002, 92458367004 Matrix:Water AnalyzedMDL 1,1,1,2-Tetrachloroethane ug/L <0.42 0.50 12/30/19 01:430.42 1,1,1-Trichloroethane ug/L <0.28 0.50 12/30/19 01:430.28 1,1,2,2-Tetrachloroethane ug/L <0.19 0.50 12/30/19 01:430.19 1,1,2-Trichloroethane ug/L <0.23 0.50 12/30/19 01:430.23 1,1-Dichloroethane ug/L <0.24 0.50 12/30/19 01:430.24 1,1-Dichloroethene ug/L <0.22 0.50 12/30/19 01:430.22 1,1-Dichloropropene ug/L <0.35 0.50 12/30/19 01:430.35 1,2,3-Trichlorobenzene ug/L <0.78 2.0 12/30/19 01:430.78 1,2,3-Trichloropropane ug/L <0.27 0.50 12/30/19 01:430.27 1,2,4-Trichlorobenzene ug/L <0.44 2.0 12/30/19 01:430.44 1,2,4-Trimethylbenzene ug/L <0.19 0.50 12/30/19 01:430.19 1,2-Dibromo-3-chloropropane ug/L <0.38 1.0 12/30/19 01:430.38 1,2-Dibromoethane (EDB)ug/L <0.23 0.50 12/30/19 01:430.23 1,2-Dichlorobenzene ug/L <0.24 0.50 12/30/19 01:430.24 1,2-Dichloroethane ug/L <0.26 0.50 12/30/19 01:430.26 1,2-Dichloropropane ug/L <0.18 0.50 12/30/19 01:430.18 1,3,5-Trimethylbenzene ug/L <0.23 0.50 12/30/19 01:430.23 1,3-Dichlorobenzene ug/L <0.25 0.50 12/30/19 01:430.25 1,3-Dichloropropane ug/L <0.34 0.50 12/30/19 01:430.34 1,4-Dichlorobenzene ug/L <0.25 0.50 12/30/19 01:430.25 2,2-Dichloropropane ug/L <0.28 0.50 12/30/19 01:430.28 2-Butanone (MEK)ug/L <3.6 5.0 12/30/19 01:433.6 2-Chlorotoluene ug/L <0.21 0.50 12/30/19 01:430.21 2-Hexanone ug/L <0.60 5.0 12/30/19 01:430.60 4-Chlorotoluene ug/L <0.21 0.50 12/30/19 01:430.21 Benzene ug/L <0.24 0.50 12/30/19 01:430.24 Bromobenzene ug/L <0.22 0.50 12/30/19 01:430.22 Bromochloromethane ug/L <0.26 0.50 12/30/19 01:430.26 Bromodichloromethane ug/L <0.18 0.50 12/30/19 01:430.18 Bromoform ug/L <0.40 0.50 12/30/19 01:430.40 Bromomethane ug/L <1.7 5.0 12/30/19 01:431.7 Carbon tetrachloride ug/L <0.23 0.50 12/30/19 01:430.23 Chlorobenzene ug/L <0.22 0.50 12/30/19 01:430.22 Chloroethane ug/L <0.58 1.0 12/30/19 01:430.58 Chloroform ug/L <0.35 0.50 12/30/19 01:430.35 Chloromethane ug/L <0.42 1.0 12/30/19 01:430.42 cis-1,2-Dichloroethene ug/L <0.21 0.50 12/30/19 01:430.21 cis-1,3-Dichloropropene ug/L <0.36 0.50 12/30/19 01:430.36 Dibromochloromethane ug/L <0.40 0.50 12/30/19 01:430.40 Dibromomethane ug/L <0.31 0.50 12/30/19 01:430.31 Dichlorodifluoromethane ug/L <0.28 0.50 12/30/19 01:430.28 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/31/2019 09:03 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 20 of 30 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92458367 Southland Oil Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:2769523 Associated Lab Samples:92458367002, 92458367004 Matrix:Water AnalyzedMDL Diisopropyl ether ug/L <0.33 0.50 12/30/19 01:430.33 Ethylbenzene ug/L <0.24 0.50 12/30/19 01:430.24 Hexachloro-1,3-butadiene ug/L <1.2 2.0 12/30/19 01:431.2 Isopropylbenzene (Cumene)ug/L <0.24 0.50 12/30/19 01:430.24 m&p-Xylene ug/L <0.44 1.0 12/30/19 01:430.44 Methyl-tert-butyl ether ug/L <0.44 0.50 12/30/19 01:430.44 Methylene Chloride ug/L <1.5 2.0 12/30/19 01:431.5 n-Butylbenzene ug/L <0.35 0.50 12/30/19 01:430.35 n-Propylbenzene ug/L <0.24 0.50 12/30/19 01:430.24 Naphthalene ug/L <0.66 2.0 12/30/19 01:430.66 o-Xylene ug/L <0.24 0.50 12/30/19 01:430.24 sec-Butylbenzene ug/L <0.25 0.50 12/30/19 01:430.25 Styrene ug/L <0.26 0.50 12/30/19 01:430.26 tert-Butylbenzene ug/L <0.25 0.50 12/30/19 01:430.25 Tetrachloroethene ug/L <0.23 0.50 12/30/19 01:430.23 Toluene ug/L <0.23 0.50 12/30/19 01:430.23 trans-1,2-Dichloroethene ug/L <0.26 0.50 12/30/19 01:430.26 trans-1,3-Dichloropropene ug/L <0.39 0.50 12/30/19 01:430.39 Trichloroethene ug/L <0.23 0.50 12/30/19 01:430.23 Trichlorofluoromethane ug/L <0.34 1.0 12/30/19 01:430.34 Vinyl chloride ug/L <0.41 1.0 12/30/19 01:430.41 Xylene (Total)ug/L <0.50 1.0 12/30/19 01:430.50 1,2-Dichloroethane-d4 (S)%97 70-130 12/30/19 01:43 4-Bromofluorobenzene (S)%100 70-130 12/30/19 01:43 Toluene-d8 (S)%92 70-130 12/30/19 01:43 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 2769524LABORATORY CONTROL SAMPLE: LCSSpike 1,1,1,2-Tetrachloroethane ug/L 51.050 102 60-140 1,1,1-Trichloroethane ug/L 49.050 98 60-140 1,1,2,2-Tetrachloroethane ug/L 50.850 102 60-140 1,1,2-Trichloroethane ug/L 47.550 95 60-140 1,1-Dichloroethane ug/L 43.550 87 60-140 1,1-Dichloroethene ug/L 49.650 99 60-140 1,1-Dichloropropene ug/L 54.750 109 60-140 1,2,3-Trichlorobenzene ug/L 51.750 103 60-140 1,2,3-Trichloropropane ug/L 50.450 101 60-140 1,2,4-Trichlorobenzene ug/L 49.950 100 60-140 1,2,4-Trimethylbenzene ug/L 49.550 99 60-140 1,2-Dibromo-3-chloropropane ug/L 52.250 104 60-140 1,2-Dibromoethane (EDB)ug/L 51.850 104 60-140 1,2-Dichlorobenzene ug/L 50.250 100 60-140 1,2-Dichloroethane ug/L 46.350 93 60-140 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/31/2019 09:03 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 21 of 30 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92458367 Southland Oil Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 2769524LABORATORY CONTROL SAMPLE: LCSSpike 1,2-Dichloropropane ug/L 49.450 99 60-140 1,3,5-Trimethylbenzene ug/L 48.350 97 60-140 1,3-Dichlorobenzene ug/L 47.950 96 60-140 1,3-Dichloropropane ug/L 51.050 102 60-140 1,4-Dichlorobenzene ug/L 48.550 97 60-140 2,2-Dichloropropane ug/L 49.750 99 60-140 2-Butanone (MEK)ug/L 101100 101 60-140 2-Chlorotoluene ug/L 47.250 94 60-140 2-Hexanone ug/L 106100 106 60-140 4-Chlorotoluene ug/L 48.350 97 60-140 Benzene ug/L 50.450 101 60-140 Bromobenzene ug/L 49.050 98 60-140 Bromochloromethane ug/L 46.850 94 60-140 Bromodichloromethane ug/L 49.350 99 60-140 Bromoform ug/L 50.950 102 60-140 Bromomethane ug/L 58.250 116 60-140 Carbon tetrachloride ug/L 50.750 101 60-140 Chlorobenzene ug/L 49.150 98 60-140 Chloroethane ug/L 36.150 72 60-140 Chloroform ug/L 45.250 90 60-140 Chloromethane ug/L 33.350 67 60-140 cis-1,2-Dichloroethene ug/L 43.450 87 60-140 cis-1,3-Dichloropropene ug/L 51.950 104 60-140 Dibromochloromethane ug/L 51.250 102 60-140 Dibromomethane ug/L 45.850 92 60-140 Dichlorodifluoromethane ug/L 36.850 74 60-140 Diisopropyl ether ug/L 43.250 86 60-140 Ethylbenzene ug/L 48.550 97 60-140 Hexachloro-1,3-butadiene ug/L 48.450 97 60-140 Isopropylbenzene (Cumene)ug/L 49.350 99 60-140 m&p-Xylene ug/L 98.1100 98 60-140 Methyl-tert-butyl ether ug/L 45.050 90 60-140 Methylene Chloride ug/L 39.150 78 60-140 n-Butylbenzene ug/L 50.450 101 60-140 n-Propylbenzene ug/L 46.850 94 60-140 Naphthalene ug/L 51.150 102 60-140 o-Xylene ug/L 49.550 99 60-140 sec-Butylbenzene ug/L 48.350 97 60-140 Styrene ug/L 49.950 100 60-140 tert-Butylbenzene ug/L 41.650 83 60-140 Tetrachloroethene ug/L 48.250 96 60-140 Toluene ug/L 45.050 90 60-140 trans-1,2-Dichloroethene ug/L 43.050 86 60-140 trans-1,3-Dichloropropene ug/L 50.250 100 60-140 Trichloroethene ug/L 48.950 98 60-140 Trichlorofluoromethane ug/L 44.850 90 60-140 Vinyl chloride ug/L 46.150 92 60-140 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/31/2019 09:03 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 22 of 30 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92458367 Southland Oil Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 2769524LABORATORY CONTROL SAMPLE: LCSSpike Xylene (Total)ug/L 148150 98 60-140 1,2-Dichloroethane-d4 (S)%96 70-130 4-Bromofluorobenzene (S)%101 70-130 Toluene-d8 (S)%93 70-130 Parameter Units MS Result % Rec Limits Qual% RecConc. 2769525MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92457678014 2769526 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. 1,1,1,2-Tetrachloroethane ug/L 5000 105 60-140103 1 305000ND52505170 1,1,1-Trichloroethane ug/L 5000 108 60-140111 2 305000ND54105540 1,1,2,2-Tetrachloroethane ug/L 5000 103 60-14098 4 305000ND51404920 1,1,2-Trichloroethane ug/L 5000 103 60-140109 6 305000ND51505470 1,1-Dichloroethane ug/L 5000 109 60-140101 7 305000ND54305070 1,1-Dichloroethene ug/L 5000 127 60-140126 1 305000ND63306280 1,1-Dichloropropene ug/L 5000 120 60-140113 6 305000ND60105630 1,2,3-Trichlorobenzene ug/L 5000 96 60-140106 11 305000ND47805310 1,2,3-Trichloropropane ug/L 5000 100 60-14098 2 305000ND50204920 1,2,4-Trichlorobenzene ug/L 5000 95 60-140100 5 305000ND47304980 1,2,4-Trimethylbenzene ug/L 5000 95 60-140111 10 305000312078508690 1,2-Dibromo-3- chloropropane ug/L 5000 96 60-14096 0 305000ND47904780 1,2-Dibromoethane (EDB)ug/L 5000 107 60-140103 4 305000ND53605130 1,2-Dichlorobenzene ug/L 5000 99 60-140100 2 305000ND49305010 1,2-Dichloroethane ug/L 5000 98 60-140102 4 305000ND48905100 1,2-Dichloropropane ug/L 5000 113 60-140110 3 305000ND56605480 1,3,5-Trimethylbenzene ug/L 5000 96 60-140106 8 30500069455005980 1,3-Dichlorobenzene ug/L 5000 94 60-140101 8 305000ND46805060 1,3-Dichloropropane ug/L 5000 107 60-140107 1 305000ND53705330 1,4-Dichlorobenzene ug/L 5000 101 60-140102 0 305000ND50605080 2,2-Dichloropropane ug/L 5000 96 60-14094 2 305000ND48104700 2-Butanone (MEK)ug/L 10000 95 60-14094 1 301000029201240012400 2-Chlorotoluene ug/L 5000 96 60-140100 4 305000ND48004980 2-Hexanone ug/L 10000 98 60-140102 4 3010000ND994010300 4-Chlorotoluene ug/L 5000 91 60-140101 10 305000ND45605070 Benzene ug/L 5000 94 60-14094 0 30500095301420014200 Bromobenzene ug/L 5000 97 60-140103 5 305000ND48705130 Bromochloromethane ug/L 5000 104 60-140104 0 305000ND52005210 Bromodichloromethane ug/L 5000 107 60-140109 2 305000ND53305460 Bromoform ug/L 5000 99 60-14098 1 305000ND49404910 Bromomethane ug/L 5000 78 60-140105 30 305000ND38805230 Carbon tetrachloride ug/L 5000 115 60-140111 4 305000ND57605540 Chlorobenzene ug/L 5000 104 60-140101 2 305000ND51905070 Chloroethane ug/L 5000 110 60-14098 11 305000ND55004920 Chloroform ug/L 5000 105 60-140111 6 305000ND52305570 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/31/2019 09:03 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 23 of 30 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92458367 Southland Oil Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 2769525MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92457678014 2769526 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. Chloromethane ug/L 5000 79 60-14081 2 305000ND39704060 cis-1,2-Dichloroethene ug/L 5000 110 60-140103 6 305000ND54805150 cis-1,3-Dichloropropene ug/L 5000 105 60-140112 7 305000ND52505620 Dibromochloromethane ug/L 5000 108 60-140104 3 305000ND53905220 Dibromomethane ug/L 5000 98 60-140101 3 305000ND48805050 Dichlorodifluoromethane ug/L 5000 90 60-14087 3 305000ND44804370 Diisopropyl ether ug/L 5000 102 60-14095 5 305000188069606650 Ethylbenzene ug/L 5000 108 60-140101 4 305000341088108480 Hexachloro-1,3-butadiene ug/L 5000 97 60-14097 0 305000ND48504850 Isopropylbenzene(Cumene)ug/L 5000 106 60-140103 3 30500013054405270 m&p-Xylene ug/L 10000 109 60-140104 2 3010000119002280022400 Methyl-tert-butyl ether ug/L 5000 107 60-140102 5 30500030856705410 Methylene Chloride ug/L 5000 101 60-14097 3 305000ND50404870 n-Butylbenzene ug/L 5000 105 60-140105 0 305000ND52405240 n-Propylbenzene ug/L 5000 91 60-14097 7 30500040549405280 Naphthalene ug/L 5000 106 60-140109 3 30500082561006290 o-Xylene ug/L 5000 107 60-140102 2 30500057101110010800 sec-Butylbenzene ug/L 5000 96 60-140109 13 305000ND48205470 Styrene ug/L 5000 104 60-140102 2 305000ND51905100 tert-Butylbenzene ug/L 5000 82 60-14092 11 305000ND41204580 Tetrachloroethene ug/L 5000 113 60-14099 14 305000ND56604930 Toluene ug/L M1500018760-140220 4 305000296003900040600 trans-1,2-Dichloroethene ug/L 5000 114 60-140107 7 305000ND57205340 trans-1,3-Dichloropropene ug/L 5000 106 60-140108 2 305000ND52905380 Trichloroethene ug/L 5000 111 60-140108 3 30500038759505790 Trichlorofluoromethane ug/L 5000 110 60-140108 2 305000ND55105400 Vinyl chloride ug/L 5000 105 60-140104 1 305000ND52305180 Xylene (Total)ug/L 15000 109 60-140104 2 3015000176003390033200 1,2-Dichloroethane-d4 (S)%101 70-13095 4-Bromofluorobenzene (S)%100 70-13099 Toluene-d8 (S)%94 70-130105 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/31/2019 09:03 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 24 of 30 #=QL# QUALIFIERS Pace Project No.: Project: 92458367 Southland Oil DEFINITIONS DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot. ND - Not Detected at or above adjusted reporting limit. TNTC - Too Numerous To Count J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit. MDL - Adjusted Method Detection Limit. PQL - Practical Quantitation Limit. RL - Reporting Limit - The lowest concentration value that meets project requirements for quantitative data with known precision and bias for a specific analyte in a specific matrix. S - Surrogate 1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is a combined concentration. Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values. LCS(D) - Laboratory Control Sample (Duplicate) MS(D) - Matrix Spike (Duplicate) DUP - Sample Duplicate RPD - Relative Percent Difference NC - Not Calculable. SG - Silica Gel - Clean-Up U - Indicates the compound was analyzed for, but not detected. Acid preservation may not be appropriate for 2 Chloroethylvinyl ether. A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPAMethod 8260. N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for each analyte is a combined concentration. Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes. TNI - The NELAC Institute. LABORATORIES Pace Analytical Services - CharlottePASI-C ANALYTE QUALIFIERS Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.M1 RPD value was outside control limits.R1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/31/2019 09:03 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 25 of 30 #=CR# QUALITY CONTROL DATA CROSS REFERENCE TABLE Pace Project No.: Project: 92458367 Southland Oil Lab ID Sample ID QC Batch Method QC Batch Analytical Method Analytical Batch 92458367001 517123MW-2R SM 6200B 92458367002 517125MW-5R SM 6200B 92458367003 517123MW-6R SM 6200B 92458367004 517125MW-7R SM 6200B 92458367005 517123Field Blank SM 6200B 92458367006 517123MW-8 SM 6200B REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/31/2019 09:03 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 26 of 30 Page 27 of 30 Page 28 of 30 Page 29 of 30 Page 30 of 30