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HomeMy WebLinkAboutMO-28112_47377_CA_LSA_20210610EXCEL CIVIL & ENVIRONMENTAL ASSOCIATES, PLLC  www.excelengr.com  Excel Civil & Environmental Associates, PLLC 625 Huntsman Court Gastonia, North Carolina 28054 NC License No. P-0129 Telephone: (704) 853-0800 Facsimile: (704) 853-3949 Internet: www.excelengr.com   June 10, 2021 Mr. Dan Bowser NCDEQ / DWM / UST Section Mooresville Regional Office 610 East Center Ave, Suite 301 Mooresville, North Carolina 28115 Re: Limited Site Assessment Sam’s Mart 80 8325 Old Statesville Road Charlotte, North Carolina Land Use: COMMERCIAL MO-28112_47377_CA_20210610_Limited Site Assessment EXCEL Project No. 2020102 Dear Mr. Bowser: On behalf of Sam’s Mart, Inc., Excel Civil & Environmental Associates, PLLC (Excel) respectfully submits for your review and approval this Limited Site Assessment Report for the above-referenced facility. If you have any questions, please contact the undersigned. Sincerely yours, EXCEL CIVIL & ENVIRONMENTAL ASSOCIATES, PLLC Aaron C. Long, P.E. Principal Engineer p.c. Adnan Jazairi / Sam’s Mart, Inc. / Matthews, NC Limited Site Assessment Page No. i Sam’s Mart 80 Charlotte, North Carolina Excel No. 2020102 EXCEL CIVIL & ENVIRONMENTAL ASSOCIATES, PLLC  www.excelengr.com TABLE OF CONTENTS SECTION NO. PAGE NO. TABLE OF CONTENTS ……………………………………………………………………………………. i 1.0 INTRODUCTION.……………………………………………………………………………………. 1 2.0 BACKGROUND INFORMATION.……………………………………………………………………. 1 2.1 AREA OF INVESTIGATION.………………………………………………………………….. 1 2.2 RECEPTOR SURVEY.……………………………………………………………………….. 1 2.3 PREVIOUS INVESTIGATIONS.………………………………………………………………. 2 3.0 GEOLOGIC FRAMEWORK.………………………………………………………………………… 2 3.1 REGIONAL GEOLOGY.……………………………………………………………………… 2 3.2 SITE GEOLOGY.…………………………………………………………………………….. 2 4.0 FIELD ACTIVITIES.…………………………………………………………………………………. 3 5.0 LINE CLOSURE ACTIVITIES ……………………………………………………………………….. 4 6.0 LABORATORY ANALYSIS………………………………………………………………………….. 4 7.0 SUMMARY & RECOMMENDATIONS……………………………………………………………….. 4 8.0 LIMITATIONS……………………………………………………………………………………….. 6 9.0 REFERENCES…………………………………………………………………………………….... 6 LIST OF TABLES TABLE 1 – MONITOR WELL CONSTRUCTION DATA TABLE 2 – SOIL SUMMARY DATA TABLE 3 – GROUNDWATER SUMMARY DATA TABLE 4 – FIELD MEASUREMENTS OF THE GROUNDWATER SAMPLES LIST OF FIGURES FIGURE 1 – SITE VICINITY MAP FIGURE 2 – SITE PLAN FIGURE 3 – SOIL CONSTITUENTS MAP FIGURE 4 – GROUNDWATER CONSTITUENTS MAP LIST OF APPENDICES APPENDIX A – MONITORING WELL CONSTRUCTION FORM APPENDIX B – LABORATORY REPORTS & CHAIN OF CUSTODY FORM(S) APPENDIX C – LSA RISK CLASSIFICATION & LAND USE FORM APPENDIX D – LINE CLOSURE SITE PHOTOGRAPHS APPENDIX E – RETURNED WELL QUESTIONNAIRES & ANCILLARY ITEMS Limited Site Assessment Page No. 1 Sam’s Mart 80 Charlotte, North Carolina Excel No. 2020102 EXCEL CIVIL & ENVIRONMENTAL ASSOCIATES, PLLC  www.excelengr.com  1.0 INTRODUCTION Excel Civil & Environmental Associates, PLLC (Excel) was contracted by Sam’s Mart, Incorporated to complete a Limited Site Assessment Report for the Sam’s Mart No. 80 facility located at 8325 Old Statesville Road, Charlotte, Mecklenburg County, North Carolina (refer to Figure 1). This assessment was conducted in response to the UST removal performed by Excel in October 2020, and to assess current soil and groundwater conditions at the site. The North Carolina DEQ issued a NORR dated November 24, 2020 requiring a Limited Site Assessment be completed in response to the results of the kerosene UST closure. In addition, a Phase II was completed by AECOM at the property as part of a property transfer in October of 2020 which indicated analytical constituents in the groundwater above the NCAC 2L standard. Excel requested an extension on this LSA to include a line closure at the property which was conducted in May of 2021. The following report will discuss the Limited Site Assessment activities conducted by Excel during May of 2021. The LSA activities included the installation of one source area monitoring well, soil sampling during line closure, conducting a receptor survey, soil and groundwater sampling, laboratory analysis and the completion of this report. 2.0 BACKGROUND INFORMATION 2.1 AREA OF INVESTIGATION The subject property is located on the northernwestern side of the intersection of Old Statesville Road and WT Harris Boulevard, located inside the incorporated city limits of Charlotte, North Carolina (refer to Figure 1). The subject property consists of one parcel of land with an area of approximately 1.125-acres and is currently utilized as a convenience store. The facility is currently active. The City of Charlotte has designated this property as zoned commercial. Old Statesville Road tracks in an approximate north- south direction along the eastern perimeter of the subject property. WT Harris Boulevard tracks in an approximate east-west direction along the southern perimeter of the subject property. The properties in the surrounding area are generally commercial in nature. Surrounding properties consist of a paint store to the north, Old Statesville Road and a gas station, WT Harris Boulevard and vacant land beyond and auto repair to the west. A total of one 2,000 gallon regulated underground storage tank (UST) containing kerosene was located onsite for retail sales. UST system closure activities were conducted at the site in October 2020. The product lines and UST were removed on October 13, 2020. Soil samples were collected underneath the product lines, sidewalls of the excavation and a groundwater sample was collected due to the depth of the water table. The USTs were last used prior to their removal in October 2020. The excavation have since been backfilled and the property is active at this time (refer to Figure 2). The subject site is located in the Piedmont Physiographic Province. Rocks are, for the most part, metamorphosed and deeply weathered. The 1985 USGS Geologic Map of North Carolina indicates underlying formations in this area of the Piedmont Physiographic Province consisting of a biotite gneiss and schists. No bedrock was encountered during line closure activities or during the installation of monitoring well MW-1. The soils were identified as silts and clays encountered to a depth of Limited Site Assessment Page No. 2 Sam’s Mart 80 Charlotte, North Carolina Excel No. 2020102 EXCEL CIVIL & ENVIRONMENTAL ASSOCIATES, PLLC  www.excelengr.com  approximately eight feet below grade level and sands and clays to a depth of approximately fourteen feet below grade level. 2.2 RECEPTOR SURVEY As part of the site assessment, Excel conducted a receptor survey by vehicular reconnaissance within approximately 1,500 feet of the source area. Two water supply wells were identified during the vehicular survey. In addition, Excel issued Request for Water Supply Information Questionnaires for twelve property owners or occupants located within 500-feet of the source area (refer to Appendix D). Five responses were received indicating a connection to public water. As a result of the survey, Excel identified two active potable wells within 1,500 feet of the source area; one well approximately 1,500 feet to the west and one well approximately 1,300 feet to the south. The site is not located in a designated wellhead protection area. According to the USGS Topographical Map for this area and vehicle reconnaissance, the nearest surface water body is an unnamed tributary of Long Creek, located approximately 130 feet south of the source area, however; the unnamed tributary is not shown on the NC surface water classification map. The next closest surface water body is located approximately 1,800 feet to the northeast of the subject property. 2.3 PREVIOUS INVESTIGATIONS No release has been reported in association with this UST system. 3.0 GEOLOGIC FRAMEWORK 3.1 REGIONAL GEOLOGY The subject site is located in the Piedmont Physiographic Province. Rocks are, for the most part, metamorphosed and deeply weathered. The 1985 USGS Geologic Map of North Carolina indicates underlying formations in this area of the Piedmont Physiographic Province consisting of a biotite gneiss and schists. No bedrock was encountered during line closure activities or during the installation of monitoring well MW-1. The soils were identified as silts and clays encountered to a depth of approximately eight feet below grade level and sands and clays to a depth of approximately fourteen feet below grade level. 3.2 SITE GEOLOGY During site assessment activities, a tan silty clay material was observed from the ground surface to a depth of approximately eight-feet below ground surface (fbgl) and a brown sandy clay was located to a depth of approximately fourteen-feet below grade level. The type of soils observed at the drilling location appear to be consistent with the surficial sediments common for this area. During groundwater sampling activities conducted on May 12, 2021, groundwater was measured to be an approximate depth of five-fbgl at the site. Limited Site Assessment Page No. 3 Sam’s Mart 80 Charlotte, North Carolina Excel No. 2020102 EXCEL CIVIL & ENVIRONMENTAL ASSOCIATES, PLLC  www.excelengr.com  4.0 FIELD ACTIVITIES As part of LSA activities conducted to assess underlying soil and groundwater conditions, Excel mobilized a track mounted drill rig to the site on May 10, 2021 for the installation of one two-inch diameter Type II monitoring wells located as shown on Figure 2. Monitoring well MW-1 was installed in the vicinity of the former kerosene UST pit. One soil sample was collected during the installation of monitoring well MW-1 at a depth of approximately 5-fbgl. Descriptions regarding soil classification and well installation are detailed in the monitoring well construction logs included in Appendix A, as applicable. Wearing new nitrile gloves, Excel personnel inspected each sample for soil characteristics and indicators of hydrocarbon compounds; soil descriptions were recorded on subsurface logs. The soil sample collected on May 10, 2021, was placed into laboratory-supplied bottles and submitted to a North Carolina certified laboratory for analysis by the following methods:  Volatile Organics by EPA Method 8260D;  Semi Volatile Organics by EPA Method 8270E;  Volatile Petroleum Hydrocarbons by MADEPV and;  Total Petroleum Hydrocarbons by MADEPE. During drilling activities, Excel installed the monitoring wells utilizing solid-stem auger drilling techniques. Monitoring well MW-1 was constructed with ten-feet of two-inch 0.010 slot PVC well screen and four-feet of two-inch diameter Schedule 40 PVC well casing using threaded joints, to a total depth of approximately fourteen-fbgl. (refer to Appendix A for well construction form). After purging the well of approximately three well-volumes, Excel collected one groundwater quality samples from monitoring well MW-1 on May 12, 2021. The groundwater sample was submitted to a North Carolina accredited laboratory for analysis by the following methods:  Volatile Organic Compounds by EPA Method 6200B;  Lead by EPA Method 6010D;  Volatile Petroleum Hydrocarbons by MADEPV;  Semi-Volatile Organic Compounds by MADEPE and;  EDB by EPA Method 504.1. During groundwater sampling activities conducted in May of 2021, no free phase product was observed during sampling activities. Limited Site Assessment Page No. 4 Sam’s Mart 80 Charlotte, North Carolina Excel No. 2020102 EXCEL CIVIL & ENVIRONMENTAL ASSOCIATES, PLLC  www.excelengr.com  5.0 Line Closure Activities In May of 2021, the product lines from the current USTs to the existing dispensers were closed and replaced. A total of seventeen samples were collected during line closure activities beneath the former product lines and dispensers. Soil samples were collected beneath the product lines and beneath each dispenser. The product lines were last used prior to their removal in May 2021. The excavation have since been backfilled and the property is active at this time (refer to Figure 2). Line closure site photographs can be viewed in Appendix D. The soil samples collected during the line closure on May 12, 2021, were placed into laboratory- supplied bottles and submitted to a North Carolina certified laboratory for analysis by the following methods:  Total Solids Volatile Organics by EPA Method 2540;  Volatile Organic Compounds by EPA Method 8260D;  Volatile Organic Compounds by EPA Method 8015C;  Semi Volatile Organics by EPA Method 8015C. 6.0 LABORATORY ANALYSIS As discussed in Section 4.0 and Section 5.0, one soil sample were collected during the installation of MW-1 and seventeen soil samples were collected beneath the former product lines and dispensers. The laboratory sample results indicated all constituent concentrations were found to be below MSCCs from all soil samples collected. No constituents reported in the soil were found to exceed applicable Residential or Industrial/Commercial Soil Cleanup Levels or the NCDEQ Action Levels for TPH-GRO and THP-DRO. Refer to Table 2 for a summary of the analytical report and Figure 3 for sample location information. As discussed in Section 4.0, one groundwater sample was collected from monitoring well MW- 1. The laboratory results for the groundwater sample collected from monitoring well MW-1 indicated constituent levels below regulatory standards for all analyzed constituents. None of the samples collected were found to exceed the NCAC 2L standard or the Gross Contamination Levels (GCLs) for the analyzed constituents. For a summary of groundwater analytical results, refer to Table 3 and Figure 5. The analytical laboratory report for both soil and groundwater sampling activities and associated Chain-of-Custody forms are presented in Appendix B. 7.0 SUMMARY & RECOMMENDATIONS Based on the information in this report Excel concludes the following:  Limited Site Assessment activities and the associated report have been completed by Excel. Soil and groundwater samples collected as part of LSA activities were found to be below the Soil-to-Water MSCCs and NCAC 2L Standards, respectively (refer to Table 2 and Table 3); Limited Site Assessment Page No. 5 Sam’s Mart 80 Charlotte, North Carolina Excel No. 2020102 EXCEL CIVIL & ENVIRONMENTAL ASSOCIATES, PLLC  www.excelengr.com   As a result of the survey, Excel identified two active potable wells within 1,500 feet of the source area; one well approximately 1,500 feet to the west and one well approximately 1,300 feet to the south. The site is not located in a designated wellhead protection area. According to the USGS Topographical Map for this area and vehicle reconnaissance, the nearest surface water body is an unnamed tributary of Long Creek, located approximately 130 feet south of the source area, however; the unnamed tributary is not shown on the NC surface water classification map. The next closest surface water body is located approximately 1,800 feet to the northeast of the subject property;  A Phase II was completed by AECOM at the property as part of a property transfer in October of 2020 which indicated analytical constituents in the groundwater above the NCAC 2L standard, specifically MTBE on the eastern side of the property, and trichloroethene on the northern side of the property. Based on the findings in this LSA report, Excel does not believe the detected constituents are related to either the kerosene UST closure or the recently removed product lines and dispensers;  Based on the information in this report, Excel proposes a site risk classification of “low” be assigned to the incident, and recommends pursuing a no further action status for this site. Limited Site Assessment Page No. 6 Sam’s Mart 80 Charlotte, North Carolina Excel No. 2020102 EXCEL CIVIL & ENVIRONMENTAL ASSOCIATES, PLLC  www.excelengr.com  8.0 LIMITATIONS This report is based on a limited number of soil and groundwater samples and chemical analyses. The conclusions presented in this report are based only on the observations made during this investigation and data provided by others. Subsurface conditions may vary significantly with time, particularly with respect to groundwater elevations and quality. Conclusions and recommendations set forth herein are applicable only to the facts and conditions described at the time of this report. In performing its professional services, Excel uses that degree of care and skill exercised under similar circumstances by members of the environmental profession practicing in the same or similar locality under similar conditions. The standard of care shall be judged exclusively as of the time these services are rendered and not according to later standards. Excel makes no express or implied warranty beyond its conformance to this standard. Excel shall not be responsible for conditions or consequences arising from relevant facts that were concealed, withheld or not fully disclosed for this report. Excel believes that all information contained in this report is factual, but no guarantee is made or implied. 9.0 REFERENCES Driscoll, “Groundwater and Wells”, 2nd edition, (St. Paul, Minnesota, Johnson Division). R. Perry and C. Chilton, “Chemical Engineer's Handbook”, 5th edition, (New York: McGraw Hill, Inc. 1973). “Guidelines for Assessment and Corrective Action for UST Releases” completed by the UST Section of the NCDEQ, Division of Waste Management dated December 1, 2013 and any applicable amendments. “UST Closure Assessment Report” completed by Excel, dated October 28, 2020. EXCEL CIVIL & ENVIRONMENTAL ASSOCIATES, PLLC  www.excelengr.com  LIST OF TABLES TABLE 1 – LIQUID LEVEL DATA TABLE 2 – SOIL SUMMARY DATA TABLE 3 – GROUNDWATER SUMMARY DATA TABLE 4 – FIELD MEASUREMENT OF GROUNDWATER SAMPLES Table 1 Monitor Well Construction DataSam's Mart 808325 Old Statesville Road, Charlotte, North CarolinaExcel Project No. 2020102Well IDDate InstalledTotal DepthScreen IntervalTop of Casing ElevationDepth to ProductDepth to WaterProduct ThicknessWater Table ElevationMW-1 05/10/21 14 4 - 14 -- -- 5.19 -- --NOTES:All data presented in feetWater level data collected on May 12, 2021 Table 2 - Soil Summary Data - Line ClosureSam's Mart 808325 Old Statesville Road, Charlotte, North CarolinaExcel Project No. 2020102S-1 S-2 S-3 S-4 S-5 S-6 S-7 S-8 S-94-FBGL 4-FBGL 4-FBGL 4-FBGL 4-FBGL 4-FBGL 4-FBGL 4-FBGL 4-FBGLDATE SAMPLEDPID READING0.7 0.5 0.3 0.2 0.1 0.0 0.0 0.0 0.0 -- -- --BENZENE< 0.00118 < 0.000105 < 0.000994 < 0.00114 < 0.00100 < 0.000788 < 0.000924 < 0.00105 < 0.001030.0056 18164TOLUENE< 0.00328 < 0.00293 < 0.00278 < 0.00319 < 0.00280 < 0.00220 < 0.00257 < 0.00293 < 0.002864.3 1,20032,000ETHYLBENZENE< 0.00186 < 0.00165 < 0.00157 < 0.00181 < 0.00158 < 0.00124 < 0.00146 < 0.00166 < 0.001624.9 1,56040,000ISOPROPYLBENZENE< 0.00107 < 0.000955 < 0.000905 < 0.00104 < 0.000911 < 0.000717 < 0.000841 < 0.000956 < 0.0009351.7 1,56440,880XYLENES< 0.00222 0.00516 J < 0.00188 0.00954 J < 0.00189 < 0.00148 < 0.00175 < 0.00198 < 0.001934.6 3,12981,760CHLOROFORM0.00884 < 0.00231 < 0.00219 0.00336 J < 0.00211 0.00595 0.00415 J 0.00770.01330.37 20180MTBE< 0.000884 < 0.000787 < 0.00746 < 0.000858 < 0.000752 < 0.000591 < 0.000693 < 0.00788 < 0.000770.091 350 3,100CIS-1,2-DICHLOROETHENE< 0.00185 < 0.00165 < 0.00156 < 0.00179 < 0.00158 < 0.00124 < 0.00146 < 0.0017< 0.001620.350 156 4,000NAPHTHALENE< 0.0123 < 0.0110 0.0338 < 0.0120 < 0.0105 < 0.00823 < 0.00967 < 0.011 < 0.01070.16 3138,176n-PROPYLBENZENE< 0.00240 < 0.00213 < 0.00202 < 0.00233 < 0.0113 < 0.00161 < 0.00188 0.00321 J< 0.002091.7 62616,3502-BUTANONE (MEK)0.220 J < 0.00513 < 0.135 0.257 < 0.136 < 0.00385 < 0.00451 0.264 < 0.10416 9385245,280STYRENE< 0.000579 < 0.000514 < 0.000487 < 0.000561 < 0.000491 < 0.000386 < 0.000454 < 0.000516 < 0.0005041.5 3,12881,7601,2,4-TRIMETHYLBENZENE< 0.00399 < 0.00356 0.0229 0.0135 < 0.00340 < 0.00267 < 0.00313 < 0.00355 < 0.003478.5 78220,4401,3,5-TRIMETHYLBENZENE< 0.00505 < 0.00449 < 0.00426 < 0.00490 < 0.00429 < 0.00337 < 0.00396 < 0.00450 < 0.004408.5 78220,440NCDEQ Action LevelsTPH GRO1.37 J 2.17 J 2.06 J 2.17 J < 1.4 1.66 J 1.55 J 1.25 J 1.29 J50TPH DRO1.9 J 8.56 < 1.02 1.41 J < 1.07 5.40 1.45 J < 1.04 1.23 J100NOTES:Data in mg/kgVOC - Volatile Organic CompoundBold data represents constituents above Soil-to-Water MSCCs (Maximum Soil Contaminant Concentrations)Highlighted data represent constituents above Residential Soil Cleanup Levels or NCDEQ Action LevelsItalicized data represent constituents above Industrial / Commercial Soil Cleanup LevelsJ - Reported value is an estimateB - The same analyte was found in the associated blankJ3 - Associated batch QC was outside the established quality control range for precisionSAMPLE LOCATIONSoil-to-Water MSCCsResidential Soil Cleanup LevelsIndustrial / Commercial Soil Cleanup Levels12-May-21 Table 2 - Soil Summary Data - Line Closure Cont'dSam's Mart 808325 Old Statesville Road, Charlotte, North CarolinaExcel Project No. 2020102S-10 S-11 S-12 S-13 S-14 S-15 S-16 S-174-FBGL 4-FBGL 4-FBGL 4-FBGL 4-FBGL 4-FBGL 4-FBGL 4-FBGLDATE SAMPLEDPID READING0.1 0.0 0.3 0.0 0.0 0.2 3.3 11.2 -- -- --BENZENE< 0.000789 < 0.00106 < 0.00109 < 0.00115 < 0.00112 < 0.00079 < 0.00108 < 0.001130.0056 18164TOLUENE< 0.00220 < 0.00296 < 0.00303 < 0.00319 < 0.00312 0.00241 J < 0.00302 < 0.003164.3 1,20032,000ETHYLBENZENE< 0.00125 < 0.00267 < 0.00172 < 0.00181 < 0.00177 < 0.00125 < 0.00172 < 0.001794.9 1,56040,000ISOPROPYLBENZENE< 0.000719 < 0.000966 < 0.000990 < 0.00104 < 0.00102 < 0.000719 < 0.000987 0.00115 J1.7 1,56440,880XYLENES< 0.00149 < 0.00200 < 0.00205 < 0.00216 < 0.00212 0.00186 J < 0.00204 0.0119 J4.6 3,12981,760CHLOROFORM0.00449 0.0194 0.00833 0.0131 0.0136 < 0.00174 0.00383 J 0.01340.37 20180MTBE< 0.000592 < 0.000794 < 0.000817 < 0.000859 < 0.000842 < 0.000592 < 0.000814 < 0.0008490.091 350 3,100CIS-1,2-DICHLOROETHENE< 0.00124 < 0.00167 < 0.00170 < 0.00181 < 0.00177 < 0.00124 0.00226 J < 0.001770.350 156 4,000NAPHTHALENE< 0.00825 < 0.0111 < 0.0114 < 0.012 < 0.0117 < 0.00825 < 0.0113 < 0.01180.16 3138,176n-PROPYLBENZENE< 0.00161 < 0.00216 < 0.00222 < 0.00234 < 0.00228 < 0.0016 < 0.00221 0.00321 J1.7 62616,3502-BUTANONE (MEK)< 0.107 0.237 < 0.148 0.227 J 0.272 < 0.00385 < 0.0053 < 0.15416 9,385245,280STYRENE< 0.000387 < 0.000520 < 0.000534 < 0.000562 < 0.000551 0.00118 J < 0.00533 0.00103 J1.5 3,12881,7601,2,4-TRIMETHYLBENZENE< 0.00267 < 0.00359 < 0.00369 < 0.00388 < 0.00381 < 0.00267 < 0.00367 0.02928.5 78220,4401,3,5-TRIMETHYLBENZENE< 0.00338 < 0.00454 < 0.00466 < 0.00491 < 0.00481 < 0.00338 < 0.00465 0.0075 J8.5 78220,440NCDEQ Action LevelsTPH GRO< 3.74 < 1.21 < 1.27 < 1.07 < 1.28 < 1.03 < 1.02 < 1.350TPH DRO5.20 2.46 J 2.67 < 1.33 1.13 J 2.36 20.3 29.3100NOTES:Data in mg/kgVOC - Volatile Organic CompoundBold data represents constituents above Soil-to-Water MSCCs (Maximum Soil Contaminant Concentrations)Highlighted data represent constituents above Residential Soil Cleanup Levels or NCDEQ Action LevelsItalicized data represent constituents above Industrial / Commercial Soil Cleanup LevelsJ - Reported value is an estimateB - The same analyte was found in the associated blankJ3 - Associated batch QC was outside the established quality control range for precisionSAMPLE LOCATIONSoil-to-Water MSCCsResidential Soil Cleanup LevelsIndustrial / Commercial Soil Cleanup Levels12-May-21 Table 2 - Soil Summary Data Cont. Sam's Mart 80 8325 Old Statesville Road, Charlotte, North Carolina Excel Project No. 2020102 MW-1 5 FBGL DATE SAMPLED 10-May-21 EPH C9 - C18 Aliphatics 4.76 J -- -- -- EPH C19 - C36 Aliphatics 3.47 J -- 31,000 810,000 EPH C11 - C22 Aromatics 9.8 -- -- -- VPH C5 - C8 Aliphatics < 3.19 68 939 24,528 VPH C9 - C12 Aliphatics < 3.19 -- -- -- VPH C9 - C10 Aromatics < 3.19 -- -- -- TOTAL C9 - C18 Aliphatics 4.76 J 540 1,500 40,000 TOTAL C9 - C22 Aromatics 9.8 31 469 12,264 BENZENE < 0.000892 0.0056 18 164 TOLUENE < 0.00249 4.3 1,200 32,000 ETHYLBENZENE < 0.00141 4.9 1,560 40,000 XYLENES 0.002 J 4.6 3,129 81,760 MTBE < 0.000670 0.091 350 3,100 DI-ISOPROPYL ETHER < 0.000783 0.37 156 4,088 NAPHTHALENE < 0.00932 0.16 313 8,176 ACETONE 0.102 24 14,000 360,000 n-BUTYLBENZENE < 0.010 4.3 626 16,350 sec-BUTYLBENZENE < 0.00550 3.3 626 16,350 tert-BUTYLBENZENE < 0.00373 3.4 626 16,350 1,2-DICHLOROETHANE < 0.00124 0.0019 7 63 ISOPROPYLBENZENE < 0.000813 1.7 1,564 40,880 p-ISOPROPYLTOLUENE < 0.00488 0.12 100 4,000 n-PROPYBENZENE < 0.00182 1.7 626 16,350 1,2,4-TRIMETHYLBENZENE < 0.00301 8.5 782 20,440 1,3,5-TRIMETHYLBENZENE < 0.00382 8.5 782 20,440 2-BUTANONE (MEK)0.168 J 16 9,385 245,280 TRANS-1,2-DICHLOROETHENE < 0.00199 0.54 310 8,200 ACENAPHTHENE < 0.00704 8.2 940 24,000 ANTHRACENE < 0.00774 940 4,600 122,000 BENZO(a)ANTHRACENE < 0.00766 0.35 0.88 8 BENZO(b)FLUORANTHENE < 0.00811 1.2 0.88 8 BENZO(g,h,i)PERYLENE < 0.00795 6,400 469 12,264 BENZO(a)PYRENE < 0.00808 0.096 0.088 0.78 FLUORANTHENE < 0.00784 290 620 16,400 FLUORENE < 0.00707 47 620 16,400 CHRYSENE < 0.00864 39 88 780 NAPHTHALENE < 0.0109 0.16 313 8,176 PHENANTHRENE < 0.00863 56 469 12,264 BIS(2-ETHYLHEXYL)PHTHALATE < 0.0551 6.6 46 410 PYRENE < 0.00846 270 469 12,264 DIBENZOFURAN < 0.0142 4.7 62 1,635 2-METHYLNAPHTHALENE < 0.00564 3.6 63 1,635 NOTES: Data in mg/kg MADEP - MassachusVOC - Volatile Organic Compound FBGL - Feet Below Grade Level EPH - Extractable PeSVOC - Semi-Volatile Organic Compound J - Reported value is an estimate VPH - Volatile Petrol MTBE - Methyl Tert Butyl Ether Bold data represents constituents above Soil-to-Water MSCCs (Maximum Soil Contaminant Concentrations) Highlighted data represent constituents above Residential Soil Cleanup Levels Soil-to- Water MSCCs Residential Soil Cleanup Levels Industrial / Commercial Soil Cleanup Levels VOCsSVOCsSAMPLE LOCATION MADEP Table 3 - Groundwater Summary Data Sam's Mart 80 8325 Old Statesville Road, Charlotte, North Carolina Excel Project No. 2020102 SAMPLE LOCATION MW-1 DATE SAMPLED 12-May-21 EPH C9 - C18 Aliphatics < 33.3 -- -- EPH C19 - C36 Aliphatics 64.1 J 10,000 -- EPH C11 - C22 Aromatics 53.1 J -- -- VPH C5 - C8 Aliphatics < 33.3 400 -- VPH C9 - C12 Aliphatics < 33.3 -- -- VPH C9 - C10 Aromatics < 33.3 -- -- TOTAL C9 - C18 Aliphatics < 33.3 700 -- TOTAL C9 - C22 Aromatics 53.1 J 200 -- BENZENE < 0.0941 1 5,000 TOLUENE < 0.278 600 260,000 ETHYLBENZENE < 0.137 600 84,500 TOTAL XYLENES < 0.174 500 85,500 MTBE 0.808 J 20 20,000 NAPHTHALENE < 1 6 6,000 NAPHTHALENE < 0.159 6 6,000 BIS(2-ETHYLHEXYL)PHTHALATE 2.06 J 3 170 FLUORANTHENE < 0.102 300 300 DIMETHYL PHTHALATE < 0.260 -- -- PYRENE < 0.107 200 200 NOTES: Data in ug/l MADEP - Massachusetts Dept. of Environmental Protection EPH - Extractable Petroleum Hydrocarbons VPH - Volatile Petroleum Hydrocarbons VOC - Volatile Organic Compound SVOC - Semi-Volatile Organic Compound MTBE - Methyl Tert Butyl Ether J - Reported value is an estimate J3 - Associated batch QC was outside the established quality control range for precision NA - Not Analyzed Bold data represents constituents above NCAC 2L Standards Highlighted data represent constituents above GCL Standards SVOCsNCAC 2L GCL MADEPVOCs ElectricalConductivityORP(S/cm)MW-1 5/12/21 7.09 0.455 800+ 112 3.84 20.69Notes: SU Standard unitsS/cmMicrosiemens per centimeterppm Parts per million0C Degrees CelsiusMW Monitoring WellTurbidityTABLE 4FIELD MEASUREMENTS OF THE GROUNDWATER SAMPLESSam's Mart 808325 Old Statesville Road, Charlotte, North CarolinaExcel Project No. 2020102Well IdentificationSampling DatepH (su)Temperature (0C)Disolved Oxygen (ppm) EXCEL CIVIL & ENVIRONMENTAL ASSOCIATES, PLLC  www.excelengr.com  LIST OF FIGURES FIGURE 1 – SITE VICINITY MAP FIGURE 2 – SITE PLAN FIGURE 3 – SOIL CONSTITUENTS MAP FIGURE 4 – GROUNDWATER CONSTITUENTS MAP EXCEL CIVIL & ENVIRONMENTAL ASSOCIATES, PLLC 625 HUNTSMAN COURT GASTONIA, NC 28054 (704) 853-08000 TOPOGRAPHIC MAP Excel Project No. 2020102  Source: USGS, 2016 N PHONE : (704) 853-0800625 HUNTSMAN COURT, GASTONIA, NC 28054PREPARED FOR :PROJECT NO. :2020103MAP TITLE :SCALE :SAM'S MART, INC.8325 OLD STATESVILLE ROAD, CHARLOTTE, NCLIMITED SITE ASSESSMENT REPORTSAM'S MART NO. 80ACLDRAWN BY :FIGURE 2 -- SITE PLANDATE :1'' = 30'6/7/2021 PHONE : (704) 853-0800625 HUNTSMAN COURT, GASTONIA, NC 28054PREPARED FOR :PROJECT NO. :2020103MAP TITLE :SCALE :SAM'S MART, INC.8325 OLD STATESVILLE ROAD, CHARLOTTE, NCLIMITED SITE ASSESSMENT REPORTSAM'S MART NO. 80ACLDRAWN BY :FIGURE 3 -- SOIL CONSTITUENTS MAPDATE :1'' = 30'6/8/2021 PHONE : (704) 853-0800625 HUNTSMAN COURT, GASTONIA, NC 28054PREPARED FOR :PROJECT NO. :2020103MAP TITLE :SCALE :SAM'S MART, INC.8325 OLD STATESVILLE ROAD, CHARLOTTE, NCLIMITED SITE ASSESSMENT REPORTSAM'S MART NO. 80ACLDRAWN BY :FIGURE 4 -- GROUNDWATER CONSTITUENTS MAP DATE :1'' = 30'6/8/2021 EXCEL CIVIL & ENVIRONMENTAL ASSOCIATES, PLLC 625 HUNTSMAN COURT GASTONIA, NC 28054 Figure 5 - Water Supply Well Map Excel No. 2020102 Sam’s Mart 80  N Source: Mecklenburg County GIS EXCEL CIVIL & ENVIRONMENTAL ASSOCIATES, PLLC  www.excelengr.com  LIST OF APPENDICES APPENDIX A – MONITORING WELL CONSTRUCTION FORMS APPENDIX B – LABORATORY REPORTS & CHAIN OF CUSTODY FORM(S) APPENDIX C – LSA RISK CLASSIFICATION & LAND USE FORM APPENDIX D – LINE CLOSURE PHOTOGRAPHS APPENDIX E – RETURNED WELL QUESTIONNAIRES & ANCILLARY ITEMS EXCEL CIVIL & ENVIRONMENTAL ASSOCIATES, PLLC  www.excelengr.com  APPENDIX A MONITORING WELL CONSTRUCTION FORMS EXCEL CIVIL & ENVIRONMENTAL ASSOCIATES, PLLC  www.excelengr.com  APPENDIX B LABORATORY REPORTS & CHAIN OF CUSTODY FORM(S) ANALYTICAL REPORT May 25, 2021 Excel Civil & Environmental Associates Sample Delivery Group:L1352603 Samples Received:05/13/2021 Project Number:2020102 Description:Sam's Mart 80 Report To:Aaron Long 625 Huntsman Court Gastonia, NC 28054 Entire Report Reviewed By: May 25, 2021 [Preliminary Report] Heather J Wagner Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 www.pacenational.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/25/21 18:20 1 of 38 May 26, 2021 Heather J Wagner Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/26/21 09:53 1 of 38 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 4 Sr: Sample Results 5 MW-1:5' L1352603-01 5 MW-1 L1352603-02 9 Qc: Quality Control Summary 12 Total Solids by Method 2540 G-2011 12 Volatile Petroleum Hydrocarbons by Method MADEPV 13 Volatile Organic Compounds (GC/MS) by Method 602MS 15 Volatile Organic Compounds (GC/MS) by Method 8260D 16 TPH by Method MADEPE 22 Semi Volatile Organic Compounds (GC/MS) by Method 625.1 25 Semi Volatile Organic Compounds (GC/MS) by Method 8270E 29 Gl: Glossary of Terms 35 Al: Accreditations & Locations 37 Sc: Sample Chain of Custody 38 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/25/21 18:20 2 of 38 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/26/21 09:53 2 of 38 SAMPLE SUMMARY Collected by Collected date/time Received date/time MW-1:5' L1352603-01 Solid C. DeVane 05/10/21 13:10 05/13/21 10:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG1672709 1 05/18/21 14:34 05/18/21 14:43 KDW Mt. Juliet, TN Volatile Petroleum Hydrocarbons by Method MADEPV WG1674773 1.23 05/10/21 13:10 05/21/21 22:32 ADM Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260D WG1672940 1.23 05/10/21 13:10 05/19/21 02:27 ADM Mt. Juliet, TN TPH by Method MADEPE WG1672928 1 05/17/21 12:12 05/22/21 02:18 DMG Mt. Juliet, TN TPH by Method MADEPE WG1672928 1 05/17/21 12:12 05/22/21 08:47 DMG Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG1672789 1 05/18/21 18:23 05/19/21 17:38 JNJ Mt. Juliet, TN Collected by Collected date/time Received date/time MW-1 L1352603-02 GW C. DeVane 05/12/21 10:31 05/13/21 10:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Petroleum Hydrocarbons by Method MADEPV WG1675185 1 05/22/21 10:14 05/22/21 10:14 JAH Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 602MS WG1676445 1 05/24/21 21:33 05/24/21 21:33 ACG Mt. Juliet, TN TPH by Method MADEPE WG1673527 1 05/19/21 06:39 05/20/21 19:12 DMG Mt. Juliet, TN TPH by Method MADEPE WG1673527 1 05/19/21 06:39 05/21/21 04:51 DMG Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 625.1 WG1672836 1 05/19/21 07:58 05/20/21 00:52 AO Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/25/21 18:20 3 of 38 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/26/21 09:53 3 of 38 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Heather J Wagner Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/25/21 18:20 4 of 38 Heather J Wagner Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/26/21 09:53 4 of 38 SAMPLE RESULTS - 01 L1352603 MW-1:5' Collected date/time: 05/10/21 13:10 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 76.6 1 05/18/2021 14:43 WG1672709 Volatile Petroleum Hydrocarbons by Method MADEPV Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time Unadjusted C5-C8 Aliphatics U 3190 9560 1.23 05/21/2021 22:32 WG1674773 Unadjusted C9-C12 Aliphatics U 3190 9560 1.23 05/21/2021 22:32 WG1674773 Unadjusted C9-C10 Aromatics U 3190 9560 1.23 05/21/2021 22:32 WG1674773 Total VPH U 3190 9560 1.23 05/21/2021 22:32 WG1674773 (S) 2,5-Dibromotoluene(FID)90.6 70.0-130 05/21/2021 22:32 WG1674773 (S) 2,5-Dibromotoluene(PID)91.4 70.0-130 05/21/2021 22:32 WG1674773 Volatile Organic Compounds (GC/MS) by Method 8260D Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time Acetone 102 C5 69.8 95.6 1.23 05/19/2021 02:27 WG1672940 Acrylonitrile U 6.90 23.9 1.23 05/19/2021 02:27 WG1672940 Benzene U 0.892 1.91 1.23 05/19/2021 02:27 WG1672940 Bromobenzene U 1.72 23.9 1.23 05/19/2021 02:27 WG1672940 Bromodichloromethane U 1.39 4.79 1.23 05/19/2021 02:27 WG1672940 Bromoform U 2.24 47.9 1.23 05/19/2021 02:27 WG1672940 Bromomethane U 3.76 23.9 1.23 05/19/2021 02:27 WG1672940 n-Butylbenzene U 10.0 23.9 1.23 05/19/2021 02:27 WG1672940 sec-Butylbenzene U 5.50 23.9 1.23 05/19/2021 02:27 WG1672940 tert-Butylbenzene U 3.73 9.56 1.23 05/19/2021 02:27 WG1672940 Carbon tetrachloride U 1.71 9.56 1.23 05/19/2021 02:27 WG1672940 Chlorobenzene U 0.401 4.79 1.23 05/19/2021 02:27 WG1672940 Chlorodibromomethane U 1.17 4.79 1.23 05/19/2021 02:27 WG1672940 Chloroethane U J6 3.25 9.56 1.23 05/19/2021 02:27 WG1672940 Chloroform U 1.97 4.79 1.23 05/19/2021 02:27 WG1672940 Chloromethane U 8.31 23.9 1.23 05/19/2021 02:27 WG1672940 2-Chlorotoluene U 1.65 4.79 1.23 05/19/2021 02:27 WG1672940 4-Chlorotoluene U 0.861 9.56 1.23 05/19/2021 02:27 WG1672940 1,2-Dibromo-3-Chloropropane U 7.46 47.9 1.23 05/19/2021 02:27 WG1672940 1,2-Dibromoethane U 1.24 4.79 1.23 05/19/2021 02:27 WG1672940 Dibromomethane U 1.43 9.56 1.23 05/19/2021 02:27 WG1672940 1,2-Dichlorobenzene U 0.813 9.56 1.23 05/19/2021 02:27 WG1672940 1,3-Dichlorobenzene U 1.15 9.56 1.23 05/19/2021 02:27 WG1672940 1,4-Dichlorobenzene U 1.34 9.56 1.23 05/19/2021 02:27 WG1672940 Dichlorodifluoromethane U 3.08 4.79 1.23 05/19/2021 02:27 WG1672940 1,1-Dichloroethane U 0.939 4.79 1.23 05/19/2021 02:27 WG1672940 1,2-Dichloroethane U 1.24 4.79 1.23 05/19/2021 02:27 WG1672940 1,1-Dichloroethene U 1.16 4.79 1.23 05/19/2021 02:27 WG1672940 cis-1,2-Dichloroethene U 1.40 4.79 1.23 05/19/2021 02:27 WG1672940 trans-1,2-Dichloroethene U 1.99 9.56 1.23 05/19/2021 02:27 WG1672940 1,2-Dichloropropane U 2.72 9.56 1.23 05/19/2021 02:27 WG1672940 1,1-Dichloropropene U 1.55 4.79 1.23 05/19/2021 02:27 WG1672940 1,3-Dichloropropane U 0.957 9.56 1.23 05/19/2021 02:27 WG1672940 cis-1,3-Dichloropropene U 1.45 4.79 1.23 05/19/2021 02:27 WG1672940 trans-1,3-Dichloropropene U 2.18 9.56 1.23 05/19/2021 02:27 WG1672940 2,2-Dichloropropane U 2.64 4.79 1.23 05/19/2021 02:27 WG1672940 Di-isopropyl ether U 0.783 1.91 1.23 05/19/2021 02:27 WG1672940 Ethylbenzene U 1.41 4.79 1.23 05/19/2021 02:27 WG1672940 Hexachloro-1,3-butadiene U 11.5 47.9 1.23 05/19/2021 02:27 WG1672940 Isopropylbenzene U 0.813 4.79 1.23 05/19/2021 02:27 WG1672940 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/25/21 18:20 5 of 38 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/26/21 09:53 5 of 38 SAMPLE RESULTS - 01 L1352603 MW-1:5' Collected date/time: 05/10/21 13:10 Volatile Organic Compounds (GC/MS) by Method 8260D Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time p-Isopropyltoluene U 4.88 9.56 1.23 05/19/2021 02:27 WG1672940 2-Butanone (MEK)168 J 121 191 1.23 05/19/2021 02:27 WG1672940 Methylene Chloride U J6 12.7 47.9 1.23 05/19/2021 02:27 WG1672940 4-Methyl-2-pentanone (MIBK)U 4.35 47.9 1.23 05/19/2021 02:27 WG1672940 Methyl tert-butyl ether U 0.670 1.91 1.23 05/19/2021 02:27 WG1672940 Naphthalene U 9.32 23.9 1.23 05/19/2021 02:27 WG1672940 n-Propylbenzene U 1.82 9.56 1.23 05/19/2021 02:27 WG1672940 Styrene U 0.438 23.9 1.23 05/19/2021 02:27 WG1672940 1,1,1,2-Tetrachloroethane U 1.82 4.79 1.23 05/19/2021 02:27 WG1672940 1,1,2,2-Tetrachloroethane U C3 1.33 4.79 1.23 05/19/2021 02:27 WG1672940 Tetrachloroethene U 1.71 4.79 1.23 05/19/2021 02:27 WG1672940 Toluene U 2.49 9.56 1.23 05/19/2021 02:27 WG1672940 1,2,3-Trichlorobenzene U C4 14.0 23.9 1.23 05/19/2021 02:27 WG1672940 1,2,4-Trichlorobenzene U C4 8.41 23.9 1.23 05/19/2021 02:27 WG1672940 1,1,1-Trichloroethane U 1.77 4.79 1.23 05/19/2021 02:27 WG1672940 1,1,2-Trichloroethane U 1.14 4.79 1.23 05/19/2021 02:27 WG1672940 Trichloroethene U 1.12 1.91 1.23 05/19/2021 02:27 WG1672940 Trichlorofluoromethane U 1.59 4.79 1.23 05/19/2021 02:27 WG1672940 1,2,3-Trichloropropane U 3.09 23.9 1.23 05/19/2021 02:27 WG1672940 1,2,4-Trimethylbenzene U 3.01 9.56 1.23 05/19/2021 02:27 WG1672940 1,3,5-Trimethylbenzene U 3.82 9.56 1.23 05/19/2021 02:27 WG1672940 Vinyl chloride U 2.22 4.79 1.23 05/19/2021 02:27 WG1672940 Xylenes, Total 2.00 J 1.68 12.4 1.23 05/19/2021 02:27 WG1672940 (S) Toluene-d8 104 75.0-131 05/19/2021 02:27 WG1672940 (S) 4-Bromofluorobenzene 105 67.0-138 05/19/2021 02:27 WG1672940 (S) 1,2-Dichloroethane-d4 96.8 70.0-130 05/19/2021 02:27 WG1672940 TPH by Method MADEPE Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time Unadjusted C9-C18 Aliphatics 4760 B J J6 2830 8480 1 05/22/2021 02:18 WG1672928 Unadjusted C19-C36 Aliphatics 3470 J 2830 8480 1 05/22/2021 02:18 WG1672928 Unadjusted C11-C22 Aromatics 9800 B 2830 8480 1 05/22/2021 08:47 WG1672928 Unadjusted Total Petroleum Hydrocarbons 18000 B 2830 8480 1 05/22/2021 02:18 WG1672928 (S) o-Terphenyl 56.6 40.0-140 05/22/2021 08:47 WG1672928 (S) 1-Chloro-octadecane 53.4 40.0-140 05/22/2021 02:18 WG1672928 (S) 2-Fluorobiphenyl 81.0 40.0-140 05/22/2021 08:47 WG1672928 (S) 2-Bromonaphthalene 84.2 40.0-140 05/22/2021 08:47 WG1672928 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time Acenaphthene U 7.04 43.5 1 05/19/2021 17:38 WG1672789 Acenaphthylene U 6.12 43.5 1 05/19/2021 17:38 WG1672789 Anthracene U 7.74 43.5 1 05/19/2021 17:38 WG1672789 Atrazine U 15.0 435 1 05/19/2021 17:38 WG1672789 Benzaldehyde 158 J 23.1 435 1 05/19/2021 17:38 WG1672789 Benzo(a)anthracene U 7.66 43.5 1 05/19/2021 17:38 WG1672789 Benzo(b)fluoranthene U 8.11 43.5 1 05/19/2021 17:38 WG1672789 Benzo(k)fluoranthene U 7.73 43.5 1 05/19/2021 17:38 WG1672789 Benzo(g,h,i)perylene U 7.95 43.5 1 05/19/2021 17:38 WG1672789 Benzo(a)pyrene U 8.08 43.5 1 05/19/2021 17:38 WG1672789 Biphenyl U 13.8 435 1 05/19/2021 17:38 WG1672789 Bis(2-chlorethoxy)methane U 13.1 435 1 05/19/2021 17:38 WG1672789 Bis(2-chloroethyl)ether U 14.4 435 1 05/19/2021 17:38 WG1672789 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/25/21 18:20 6 of 38 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/26/21 09:53 6 of 38 SAMPLE RESULTS - 01 L1352603 MW-1:5' Collected date/time: 05/10/21 13:10 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time 2,2-Oxybis(1-Chloropropane)U 18.8 435 1 05/19/2021 17:38 WG1672789 4-Bromophenyl-phenylether U 15.3 435 1 05/19/2021 17:38 WG1672789 Caprolactam U 21.5 435 1 05/19/2021 17:38 WG1672789 Carbazole U 13.4 435 1 05/19/2021 17:38 WG1672789 2-Chloronaphthalene U 7.64 43.5 1 05/19/2021 17:38 WG1672789 4-Chlorophenyl-phenylether U 15.1 435 1 05/19/2021 17:38 WG1672789 Chrysene U 8.64 43.5 1 05/19/2021 17:38 WG1672789 Dibenz(a,h)anthracene U 12.0 43.5 1 05/19/2021 17:38 WG1672789 3,3-Dichlorobenzidine U 16.1 435 1 05/19/2021 17:38 WG1672789 2,4-Dinitrotoluene U 12.5 435 1 05/19/2021 17:38 WG1672789 2,6-Dinitrotoluene U 14.2 435 1 05/19/2021 17:38 WG1672789 Fluoranthene U 7.84 43.5 1 05/19/2021 17:38 WG1672789 Fluorene U 7.07 43.5 1 05/19/2021 17:38 WG1672789 Hexachlorobenzene U 15.4 435 1 05/19/2021 17:38 WG1672789 Hexachloro-1,3-butadiene U 14.6 435 1 05/19/2021 17:38 WG1672789 Hexachlorocyclopentadiene U 22.8 435 1 05/19/2021 17:38 WG1672789 Hexachloroethane U 17.1 435 1 05/19/2021 17:38 WG1672789 Indeno(1,2,3-cd)pyrene U 12.3 43.5 1 05/19/2021 17:38 WG1672789 Isophorone U 13.3 435 1 05/19/2021 17:38 WG1672789 Naphthalene U 10.9 43.5 1 05/19/2021 17:38 WG1672789 Nitrobenzene U 15.1 435 1 05/19/2021 17:38 WG1672789 n-Nitrosodiphenylamine U 32.9 435 1 05/19/2021 17:38 WG1672789 n-Nitrosodi-n-propylamine U 14.5 435 1 05/19/2021 17:38 WG1672789 Phenanthrene U 8.63 43.5 1 05/19/2021 17:38 WG1672789 Benzylbutyl phthalate U 13.6 435 1 05/19/2021 17:38 WG1672789 Bis(2-ethylhexyl)phthalate U 55.1 435 1 05/19/2021 17:38 WG1672789 Di-n-butyl phthalate U 14.9 435 1 05/19/2021 17:38 WG1672789 Diethyl phthalate U 14.4 435 1 05/19/2021 17:38 WG1672789 Dimethyl phthalate U 92.2 435 1 05/19/2021 17:38 WG1672789 Di-n-octyl phthalate U 29.4 435 1 05/19/2021 17:38 WG1672789 Pyrene U 8.46 43.5 1 05/19/2021 17:38 WG1672789 4-Chloroaniline U 15.7 435 1 05/19/2021 17:38 WG1672789 4-Chloro-3-methylphenol U 14.1 435 1 05/19/2021 17:38 WG1672789 2-Chlorophenol U 14.4 435 1 05/19/2021 17:38 WG1672789 Dibenzofuran U 14.2 435 1 05/19/2021 17:38 WG1672789 2,4-Dichlorophenol U 12.7 435 1 05/19/2021 17:38 WG1672789 2,4-Dimethylphenol U 11.4 435 1 05/19/2021 17:38 WG1672789 4,6-Dinitro-2-methylphenol U 98.5 435 1 05/19/2021 17:38 WG1672789 2,4-Dinitrophenol U 102 435 1 05/19/2021 17:38 WG1672789 2-Methylnaphthalene U 5.64 43.5 1 05/19/2021 17:38 WG1672789 2-Methylphenol U 13.1 435 1 05/19/2021 17:38 WG1672789 3&4-Methyl Phenol U 13.6 435 1 05/19/2021 17:38 WG1672789 2-Nitroaniline U 14.0 435 1 05/19/2021 17:38 WG1672789 3-Nitroaniline U 13.8 435 1 05/19/2021 17:38 WG1672789 4-Nitroaniline U J4 12.7 435 1 05/19/2021 17:38 WG1672789 2-Nitrophenol U 15.5 435 1 05/19/2021 17:38 WG1672789 4-Nitrophenol U 13.6 435 1 05/19/2021 17:38 WG1672789 Pentachlorophenol U 11.7 435 1 05/19/2021 17:38 WG1672789 Phenol U 17.5 435 1 05/19/2021 17:38 WG1672789 2,4,6-Trichlorophenol U 14.0 435 1 05/19/2021 17:38 WG1672789 Acetophenone U 13.6 435 1 05/19/2021 17:38 WG1672789 1,2,4,5-Tetrachlorobenzene U 20.8 435 1 05/19/2021 17:38 WG1672789 2,4,5-Trichlorophenol U 14.7 435 1 05/19/2021 17:38 WG1672789 2,3,4,6-Tetrachlorophenol U 16.4 435 1 05/19/2021 17:38 WG1672789 (S) 2-Fluorophenol 64.4 12.0-120 05/19/2021 17:38 WG1672789 (S) Phenol-d5 56.9 10.0-120 05/19/2021 17:38 WG1672789 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/25/21 18:20 7 of 38 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/26/21 09:53 7 of 38 SAMPLE RESULTS - 01 L1352603 MW-1:5' Collected date/time: 05/10/21 13:10 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time (S) Nitrobenzene-d5 52.8 10.0-122 05/19/2021 17:38 WG1672789 (S) 2-Fluorobiphenyl 63.7 15.0-120 05/19/2021 17:38 WG1672789 (S) 2,4,6-Tribromophenol 77.5 10.0-127 05/19/2021 17:38 WG1672789 (S) p-Terphenyl-d14 64.4 10.0-120 05/19/2021 17:38 WG1672789 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/25/21 18:20 8 of 38 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/26/21 09:53 8 of 38 SAMPLE RESULTS - 02 L1352603 MW-1 Collected date/time: 05/12/21 10:31 Volatile Petroleum Hydrocarbons by Method MADEPV Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Unadjusted C5-C8 Aliphatics U 33.3 100 1 05/22/2021 10:14 WG1675185 Unadjusted C9-C12 Aliphatics U 33.3 100 1 05/22/2021 10:14 WG1675185 Unadjusted C9-C10 Aromatics U 33.3 100 1 05/22/2021 10:14 WG1675185 Total VPH U 33.3 100 1 05/22/2021 10:14 WG1675185 (S) 2,5-Dibromotoluene(FID)100 70.0-130 05/22/2021 10:14 WG1675185 (S) 2,5-Dibromotoluene(PID)98.1 70.0-130 05/22/2021 10:14 WG1675185 Volatile Organic Compounds (GC/MS) by Method 602MS Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Benzene U 0.0941 1.00 1 05/24/2021 21:33 WG1676445 Toluene U 0.278 1.00 1 05/24/2021 21:33 WG1676445 Ethylbenzene U 0.137 1.00 1 05/24/2021 21:33 WG1676445 Total Xylenes U 0.174 3.00 1 05/24/2021 21:33 WG1676445 Methyl tert-butyl ether 0.808 J 0.101 1.00 1 05/24/2021 21:33 WG1676445 Naphthalene U 1.00 5.00 1 05/24/2021 21:33 WG1676445 Di-isopropyl ether U 0.105 1.00 1 05/24/2021 21:33 WG1676445 (S) Toluene-d8 111 80.0-120 05/24/2021 21:33 WG1676445 (S) 4-Bromofluorobenzene 109 77.0-126 05/24/2021 21:33 WG1676445 (S) 1,2-Dichloroethane-d4 96.3 70.0-130 05/24/2021 21:33 WG1676445 TPH by Method MADEPE Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Unadjusted C9-C18 Aliphatics U 33.3 100 1 05/20/2021 19:12 WG1673527 Unadjusted C19-C36 Aliphatics 64.1 B J 33.3 100 1 05/20/2021 19:12 WG1673527 Unadjusted C11-C22 Aromatics 53.1 B J 33.3 100 1 05/21/2021 04:51 WG1673527 Unadjusted Total Petroleum Hydrocarbons 117 33.3 100 1 05/21/2021 04:51 WG1673527 (S) o-Terphenyl 61.6 40.0-140 05/21/2021 04:51 WG1673527 (S) 1-Chloro-octadecane 52.0 40.0-140 05/20/2021 19:12 WG1673527 (S) 2-Fluorobiphenyl 73.9 40.0-140 05/21/2021 04:51 WG1673527 (S) 2-Bromonaphthalene 75.9 40.0-140 05/21/2021 04:51 WG1673527 Semi Volatile Organic Compounds (GC/MS) by Method 625.1 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Acenaphthene U J4 0.0886 1.00 1 05/20/2021 00:52 WG1672836 Acenaphthylene U 0.0921 1.00 1 05/20/2021 00:52 WG1672836 Anthracene U 0.0804 1.00 1 05/20/2021 00:52 WG1672836 Benzidine U 3.74 10.0 1 05/20/2021 00:52 WG1672836 Benzo(a)anthracene U 0.199 1.00 1 05/20/2021 00:52 WG1672836 Benzo(b)fluoranthene U 0.130 1.00 1 05/20/2021 00:52 WG1672836 Benzo(k)fluoranthene U 0.120 1.00 1 05/20/2021 00:52 WG1672836 Benzo(g,h,i)perylene U 0.121 1.00 1 05/20/2021 00:52 WG1672836 Benzo(a)pyrene U 0.0381 1.00 1 05/20/2021 00:52 WG1672836 Bis(2-chlorethoxy)methane U 0.116 10.0 1 05/20/2021 00:52 WG1672836 Bis(2-chloroethyl)ether U 0.137 10.0 1 05/20/2021 00:52 WG1672836 2,2-Oxybis(1-Chloropropane)U J4 0.210 10.0 1 05/20/2021 00:52 WG1672836 4-Bromophenyl-phenylether U 0.0877 10.0 1 05/20/2021 00:52 WG1672836 2-Chloronaphthalene U J3 J4 0.0648 1.00 1 05/20/2021 00:52 WG1672836 4-Chlorophenyl-phenylether U 0.0926 10.0 1 05/20/2021 00:52 WG1672836 Chrysene U 0.130 1.00 1 05/20/2021 00:52 WG1672836 Dibenz(a,h)anthracene U 0.0644 1.00 1 05/20/2021 00:52 WG1672836 3,3-Dichlorobenzidine U 0.212 10.0 1 05/20/2021 00:52 WG1672836 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/25/21 18:20 9 of 38 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/26/21 09:53 9 of 38 SAMPLE RESULTS - 02 L1352603 MW-1 Collected date/time: 05/12/21 10:31 Semi Volatile Organic Compounds (GC/MS) by Method 625.1 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time 2,4-Dinitrotoluene U 0.0983 10.0 1 05/20/2021 00:52 WG1672836 2,6-Dinitrotoluene U 0.250 10.0 1 05/20/2021 00:52 WG1672836 Fluoranthene U 0.102 1.00 1 05/20/2021 00:52 WG1672836 Fluorene U J4 0.0844 1.00 1 05/20/2021 00:52 WG1672836 Hexachlorobenzene U 0.0755 1.00 1 05/20/2021 00:52 WG1672836 Hexachloro-1,3-butadiene U 0.0968 10.0 1 05/20/2021 00:52 WG1672836 Hexachlorocyclopentadiene U J3 0.0598 10.0 1 05/20/2021 00:52 WG1672836 Hexachloroethane U J4 0.127 10.0 1 05/20/2021 00:52 WG1672836 Indeno(1,2,3-cd)pyrene U 0.279 1.00 1 05/20/2021 00:52 WG1672836 Isophorone U 0.143 10.0 1 05/20/2021 00:52 WG1672836 Naphthalene U 0.159 1.00 1 05/20/2021 00:52 WG1672836 Nitrobenzene U 0.297 10.0 1 05/20/2021 00:52 WG1672836 n-Nitrosodimethylamine U 0.998 10.0 1 05/20/2021 00:52 WG1672836 n-Nitrosodiphenylamine U J3 2.37 10.0 1 05/20/2021 00:52 WG1672836 n-Nitrosodi-n-propylamine U 0.261 10.0 1 05/20/2021 00:52 WG1672836 Phenanthrene U 0.112 1.00 1 05/20/2021 00:52 WG1672836 Benzylbutyl phthalate U 0.765 3.00 1 05/20/2021 00:52 WG1672836 Bis(2-ethylhexyl)phthalate 2.06 J 0.895 3.00 1 05/20/2021 00:52 WG1672836 Di-n-butyl phthalate U 0.453 3.00 1 05/20/2021 00:52 WG1672836 Diethyl phthalate U 0.287 3.00 1 05/20/2021 00:52 WG1672836 Dimethyl phthalate U 0.260 3.00 1 05/20/2021 00:52 WG1672836 Di-n-octyl phthalate U 0.932 3.00 1 05/20/2021 00:52 WG1672836 Pyrene U 0.107 1.00 1 05/20/2021 00:52 WG1672836 1,2,4-Trichlorobenzene U J4 0.0698 10.0 1 05/20/2021 00:52 WG1672836 4-Chloro-3-methylphenol U 0.131 10.0 1 05/20/2021 00:52 WG1672836 2-Chlorophenol U 0.133 10.0 1 05/20/2021 00:52 WG1672836 2,4-Dichlorophenol U J4 0.102 10.0 1 05/20/2021 00:52 WG1672836 2,4-Dimethylphenol U 0.0636 10.0 1 05/20/2021 00:52 WG1672836 4,6-Dinitro-2-methylphenol U 1.12 10.0 1 05/20/2021 00:52 WG1672836 2,4-Dinitrophenol U 5.93 10.0 1 05/20/2021 00:52 WG1672836 2-Nitrophenol U 0.117 10.0 1 05/20/2021 00:52 WG1672836 4-Nitrophenol U 0.143 10.0 1 05/20/2021 00:52 WG1672836 Pentachlorophenol U 0.313 10.0 1 05/20/2021 00:52 WG1672836 Phenol U 4.33 10.0 1 05/20/2021 00:52 WG1672836 2,4,6-Trichlorophenol U 0.100 10.0 1 05/20/2021 00:52 WG1672836 (S) 2-Fluorophenol 15.8 10.0-120 05/20/2021 00:52 WG1672836 (S) Phenol-d5 14.8 8.00-424 05/20/2021 00:52 WG1672836 (S) Nitrobenzene-d5 39.6 15.0-314 05/20/2021 00:52 WG1672836 (S) 2-Fluorobiphenyl 49.3 22.0-127 05/20/2021 00:52 WG1672836 (S) 2,4,6-Tribromophenol 41.5 10.0-153 05/20/2021 00:52 WG1672836 (S) p-Terphenyl-d14 41.4 29.0-141 05/20/2021 00:52 WG1672836 Semi Volatile Organic Compounds (GC/MS) by Method 625.1 - TENTATIVELY IDENTIFIED COMPOUNDS Result Qualifier MDL RDL Dilution Analysis Batch CAS #RT Analyte ug/l ug/l ug/l date / time Octadecanoic Acid 26.9 J N 0.000 0.000 1 05/20/2021 00:52 WG1672836 000057-11-4 7.59 Unknown-01 22.6 J N 0.000 0.000 1 05/20/2021 00:52 WG1672836 000000-00-0 10.72 N-Hexadecanoic Acid 18.6 J N 0.000 0.000 1 05/20/2021 00:52 WG1672836 000057-10-3 6.86 17-Pentatriacontene 13.7 J N 0.000 0.000 1 05/20/2021 00:52 WG1672836 006971-40-0 12.63 1-Nonadecene 8.17 J N 0.000 0.000 1 05/20/2021 00:52 WG1672836 018435-45-5 14.78 Unknown-02 7.33 J N 0.000 0.000 1 05/20/2021 00:52 WG1672836 000000-00-0 15.50 Nonanoic Acid 7.27 J N 0.000 0.000 1 05/20/2021 00:52 WG1672836 000112-05-0 4.30 Cyclopentane, (4-Octyldodecyl)-5.08 J N 0.000 0.000 1 05/20/2021 00:52 WG1672836 005638-09-5 15.57 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/25/21 18:20 10 of 38 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/26/21 09:53 10 of 38 SAMPLE RESULTS - 02 L1352603 MW-1 Collected date/time: 05/12/21 10:31 Semi Volatile Organic Compounds (GC/MS) by Method 625.1 - TENTATIVELY IDENTIFIED COMPOUNDS Result Qualifier MDL RDL Dilution Analysis Batch CAS #RT Analyte ug/l ug/l ug/l date / time Tentatively Identified compounds (TIC) refers to substances not present in the list of target compounds. Therefore, not all TICs are identified and quantitated using individual standards. TIC listings are prepared utilizing a computerized library search routine of electron impact mass spectral data and evaluation of the relevant data by a mass spectral data specialist. Quantitation is accomplished by relative peak area of the TIC compared to that of the nearest internal standard from the total ion chromatogram. TICs are identified and quantitated only if the peak area is 10% or more of that of the nearest internal standard. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/25/21 18:20 11 of 38 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/26/21 09:53 11 of 38 QUALITY CONTROL SUMMARYWG1672709 Total Solids by Method 2540 G-2011 L1352603-01 Method Blank (MB) (MB) R3656254-1 05/18/21 14:43 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 Original Sample (OS) • Duplicate (DUP) (OS) • (DUP) R3656254-3 05/18/21 14:43 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%% Total Solids 94.8 1 0.293 10 Laboratory Control Sample (LCS) (LCS) R3656254-2 05/18/21 14:43 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 85.0-115 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/25/21 18:20 12 of 38 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/26/21 09:53 12 of 38 QUALITY CONTROL SUMMARYWG1674773 Volatile Petroleum Hydrocarbons by Method MADEPV L1352603-01 Method Blank (MB) (MB) R3657468-3 05/20/21 23:50 MB Result MB Qualifier MB MDL MB RDL Analyte ug/kg ug/kg ug/kg Unadjusted C5-C8 Aliphatics U 1670 5000 Unadjusted C9-C12 Aliphatics U 1670 5000 Unadjusted C9-C10 Aromatics U 1670 5000 Total VPH U 1670 5000 (S) 2,5-Dibromotoluene(FID)94.3 70.0-130 (S) 2,5-Dibromotoluene(PID)96.4 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3657468-1 05/20/21 21:04 • (LCSD) R3657468-2 05/20/21 21:37 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte ug/kg ug/kg ug/kg %%%%% Unadjusted C5-C8 Aliphatics 60000 56500 55900 94.2 93.2 70.0-130 1.07 25 Unadjusted C9-C12 Aliphatics 70000 67600 66800 96.6 95.4 70.0-130 1.19 25 Unadjusted C9-C10 Aromatics 10000 10900 10900 109 109 70.0-130 0.000 25 Total VPH 140000 135000 134000 96.4 95.7 70.0-130 0.743 25 (S) 2,5-Dibromotoluene(FID) 101 98.9 70.0-130 (S) 2,5-Dibromotoluene(PID) 103 101 70.0-130 L1349975-03 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1349975-03 05/21/21 12:13 • (MS) R3657468-4 05/21/21 23:38 • (MSD) R3657468-5 05/22/21 00:12 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte ug/kg ug/kg ug/kg ug/kg %%%%% Unadjusted C5-C8 Aliphatics 82600 U 69700 69300 84.4 83.9 1 70.0-130 0.632 25 Unadjusted C9-C12 Aliphatics 96400 U 91000 87600 94.4 90.9 1 70.0-130 3.77 25 Unadjusted C9-C10 Aromatics 13800 U 14300 14500 104 106 1 70.0-130 1.42 25 Total VPH 193000 U 174000 171000 90.2 88.6 1 70.0-130 1.69 25 (S) 2,5-Dibromotoluene(FID) 95.2 100 70.0-130 (S) 2,5-Dibromotoluene(PID) 94.9 97.0 70.0-130 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/25/21 18:20 13 of 38 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/26/21 09:53 13 of 38 QUALITY CONTROL SUMMARYWG1675185 Volatile Petroleum Hydrocarbons by Method MADEPV L1352603-02 Method Blank (MB) (MB) R3658467-3 05/22/21 05:48 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l Unadjusted C5-C8 Aliphatics U 33.3 100 Unadjusted C9-C12 Aliphatics U 33.3 100 Unadjusted C9-C10 Aromatics U 33.3 100 Total VPH U 33.3 100 (S) 2,5-Dibromotoluene(FID)96.7 70.0-130 (S) 2,5-Dibromotoluene(PID)94.9 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3658467-1 05/22/21 03:36 • (LCSD) R3658467-2 05/22/21 04:09 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte ug/l ug/l ug/l %%%%% Unadjusted C5-C8 Aliphatics 1200 1030 1040 85.8 86.7 70.0-130 0.966 25 Unadjusted C9-C12 Aliphatics 1400 1250 1280 89.3 91.4 70.0-130 2.37 25 Unadjusted C9-C10 Aromatics 200 200 203 100 101 70.0-130 1.49 25 Total VPH 2800 2480 2520 88.6 90.0 70.0-130 1.60 25 (S) 2,5-Dibromotoluene(FID) 102 106 70.0-130 (S) 2,5-Dibromotoluene(PID) 100 104 70.0-130 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/25/21 18:20 14 of 38 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/26/21 09:53 14 of 38 QUALITY CONTROL SUMMARYWG1676445 Volatile Organic Compounds (GC/MS) by Method 602MS L1352603-02 Method Blank (MB) (MB) R3658768-4 05/24/21 20:08 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l Benzene U 0.0941 1.00 Di-isopropyl ether U 0.105 1.00 Ethylbenzene U 0.137 1.00 Methyl tert-butyl ether U 0.101 1.00 Naphthalene U 1.00 5.00 Toluene U 0.278 1.00 Xylenes, Total U 0.174 3.00 (S) Toluene-d8 117 80.0-120 (S) 4-Bromofluorobenzene 103 77.0-126 (S) 1,2-Dichloroethane-d4 93.9 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3658768-1 05/24/21 18:46 • (LCSD) R3658768-2 05/24/21 19:07 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte ug/l ug/l ug/l %%%%% Benzene 5.00 4.36 4.49 87.2 89.8 70.0-123 2.94 20 Di-isopropyl ether 5.00 3.80 4.02 76.0 80.4 58.0-138 5.63 20 Ethylbenzene 5.00 5.01 5.03 100 101 79.0-123 0.398 20 Methyl tert-butyl ether 5.00 4.45 4.41 89.0 88.2 68.0-125 0.903 20 Naphthalene 5.00 4.28 4.96 85.6 99.2 54.0-135 14.7 20 Toluene 5.00 5.07 4.94 101 98.8 79.0-120 2.60 20 Xylenes, Total 15.0 14.6 14.5 97.3 96.7 79.0-123 0.687 20 (S) Toluene-d8 114 116 80.0-120 (S) 4-Bromofluorobenzene 105 106 77.0-126 (S) 1,2-Dichloroethane-d4 98.6 93.0 70.0-130 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/25/21 18:20 15 of 38 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/26/21 09:53 15 of 38 QUALITY CONTROL SUMMARYWG1672940 Volatile Organic Compounds (GC/MS) by Method 8260D L1352603-01 Method Blank (MB) (MB) R3657767-3 05/18/21 23:18 MB Result MB Qualifier MB MDL MB RDL Analyte ug/kg ug/kg ug/kg Acetone U 36.5 50.0 Acrylonitrile U 3.61 12.5 Benzene U 0.467 1.00 Bromobenzene U 0.900 12.5 Bromodichloromethane U 0.725 2.50 Bromoform U 1.17 25.0 Bromomethane U 1.97 12.5 n-Butylbenzene U 5.25 12.5 sec-Butylbenzene U 2.88 12.5 tert-Butylbenzene U 1.95 5.00 Carbon tetrachloride U 0.898 5.00 Chlorobenzene U 0.210 2.50 Chlorodibromomethane U 0.612 2.50 Chloroethane U 1.70 5.00 Chloroform U 1.03 2.50 Chloromethane U 4.35 12.5 2-Chlorotoluene U 0.865 2.50 4-Chlorotoluene U 0.450 5.00 1,2-Dibromo-3-Chloropropane U 3.90 25.0 1,2-Dibromoethane U 0.648 2.50 Dibromomethane U 0.750 5.00 1,2-Dichlorobenzene U 0.425 5.00 1,3-Dichlorobenzene U 0.600 5.00 1,4-Dichlorobenzene U 0.700 5.00 Dichlorodifluoromethane U 1.61 2.50 1,1-Dichloroethane U 0.491 2.50 1,2-Dichloroethane U 0.649 2.50 1,1-Dichloroethene U 0.606 2.50 cis-1,2-Dichloroethene U 0.734 2.50 trans-1,2-Dichloroethene U 1.04 5.00 1,2-Dichloropropane U 1.42 5.00 1,1-Dichloropropene U 0.809 2.50 1,3-Dichloropropane U 0.501 5.00 cis-1,3-Dichloropropene U 0.757 2.50 trans-1,3-Dichloropropene U 1.14 5.00 2,2-Dichloropropane U 1.38 2.50 Di-isopropyl ether U 0.410 1.00 Ethylbenzene U 0.737 2.50 Hexachloro-1,3-butadiene U 6.00 25.0 Isopropylbenzene U 0.425 2.50 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/25/21 18:20 16 of 38 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/26/21 09:53 16 of 38 QUALITY CONTROL SUMMARYWG1672940 Volatile Organic Compounds (GC/MS) by Method 8260D L1352603-01 Method Blank (MB) (MB) R3657767-3 05/18/21 23:18 MB Result MB Qualifier MB MDL MB RDL Analyte ug/kg ug/kg ug/kg p-Isopropyltoluene U 2.55 5.00 2-Butanone (MEK)U 63.5 100 Methylene Chloride U 6.64 25.0 4-Methyl-2-pentanone (MIBK)U 2.28 25.0 Methyl tert-butyl ether U 0.350 1.00 Naphthalene U 4.88 12.5 n-Propylbenzene U 0.950 5.00 Styrene U 0.229 12.5 1,1,1,2-Tetrachloroethane U 0.948 2.50 1,1,2,2-Tetrachloroethane U 0.695 2.50 Tetrachloroethene U 0.896 2.50 Toluene U 1.30 5.00 1,2,3-Trichlorobenzene U 7.33 12.5 1,2,4-Trichlorobenzene U 4.40 12.5 1,1,1-Trichloroethane U 0.923 2.50 1,1,2-Trichloroethane U 0.597 2.50 Trichloroethene U 0.584 1.00 Trichlorofluoromethane U 0.827 2.50 1,2,3-Trichloropropane U 1.62 12.5 1,2,4-Trimethylbenzene U 1.58 5.00 1,3,5-Trimethylbenzene U 2.00 5.00 Vinyl chloride U 1.16 2.50 Xylenes, Total U 0.880 6.50 (S) Toluene-d8 106 75.0-131 (S) 4-Bromofluorobenzene 101 67.0-138 (S) 1,2-Dichloroethane-d4 96.4 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3657767-1 05/18/21 22:02 • (LCSD) R3657767-2 05/18/21 22:21 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte ug/kg ug/kg ug/kg %%%%% Acetone 625 880 843 141 135 10.0-160 4.29 31 Acrylonitrile 625 705 723 113 116 45.0-153 2.52 22 Benzene 125 124 121 99.2 96.8 70.0-123 2.45 20 Bromobenzene 125 106 98.2 84.8 78.6 73.0-121 7.64 20 Bromodichloromethane 125 123 121 98.4 96.8 73.0-121 1.64 20 Bromoform 125 119 120 95.2 96.0 64.0-132 0.837 20 Bromomethane 125 107 103 85.6 82.4 56.0-147 3.81 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/25/21 18:20 17 of 38 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/26/21 09:53 17 of 38 QUALITY CONTROL SUMMARYWG1672940 Volatile Organic Compounds (GC/MS) by Method 8260D L1352603-01 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3657767-1 05/18/21 22:02 • (LCSD) R3657767-2 05/18/21 22:21 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte ug/kg ug/kg ug/kg %%%%% n-Butylbenzene 125 114 116 91.2 92.8 68.0-135 1.74 20 sec-Butylbenzene 125 113 111 90.4 88.8 74.0-130 1.79 20 tert-Butylbenzene 125 110 106 88.0 84.8 75.0-127 3.70 20 Carbon tetrachloride 125 126 125 101 100 66.0-128 0.797 20 Chlorobenzene 125 123 115 98.4 92.0 76.0-128 6.72 20 Chlorodibromomethane 125 121 118 96.8 94.4 74.0-127 2.51 20 Chloroethane 125 104 101 83.2 80.8 61.0-134 2.93 20 Chloroform 125 120 117 96.0 93.6 72.0-123 2.53 20 Chloromethane 125 104 99.0 83.2 79.2 51.0-138 4.93 20 2-Chlorotoluene 125 115 107 92.0 85.6 75.0-124 7.21 20 4-Chlorotoluene 125 113 106 90.4 84.8 75.0-124 6.39 20 1,2-Dibromo-3-Chloropropane 125 113 117 90.4 93.6 59.0-130 3.48 20 1,2-Dibromoethane 125 121 117 96.8 93.6 74.0-128 3.36 20 Dibromomethane 125 124 119 99.2 95.2 75.0-122 4.12 20 1,2-Dichlorobenzene 125 124 128 99.2 102 76.0-124 3.17 20 1,3-Dichlorobenzene 125 122 116 97.6 92.8 76.0-125 5.04 20 1,4-Dichlorobenzene 125 118 115 94.4 92.0 77.0-121 2.58 20 Dichlorodifluoromethane 125 131 128 105 102 43.0-156 2.32 20 1,1-Dichloroethane 125 124 119 99.2 95.2 70.0-127 4.12 20 1,2-Dichloroethane 125 123 114 98.4 91.2 65.0-131 7.59 20 1,1-Dichloroethene 125 124 118 99.2 94.4 65.0-131 4.96 20 cis-1,2-Dichloroethene 125 121 120 96.8 96.0 73.0-125 0.830 20 trans-1,2-Dichloroethene 125 116 116 92.8 92.8 71.0-125 0.000 20 1,2-Dichloropropane 125 119 119 95.2 95.2 74.0-125 0.000 20 1,1-Dichloropropene 125 121 115 96.8 92.0 73.0-125 5.08 20 1,3-Dichloropropane 125 116 113 92.8 90.4 80.0-125 2.62 20 cis-1,3-Dichloropropene 125 112 112 89.6 89.6 76.0-127 0.000 20 trans-1,3-Dichloropropene 125 116 112 92.8 89.6 73.0-127 3.51 20 2,2-Dichloropropane 125 124 117 99.2 93.6 59.0-135 5.81 20 Di-isopropyl ether 125 133 128 106 102 60.0-136 3.83 20 Ethylbenzene 125 122 118 97.6 94.4 74.0-126 3.33 20 Hexachloro-1,3-butadiene 125 121 136 96.8 109 57.0-150 11.7 20 Isopropylbenzene 125 137 131 110 105 72.0-127 4.48 20 p-Isopropyltoluene 125 118 115 94.4 92.0 72.0-133 2.58 20 2-Butanone (MEK)625 709 698 113 112 30.0-160 1.56 24 Methylene Chloride 125 123 121 98.4 96.8 68.0-123 1.64 20 4-Methyl-2-pentanone (MIBK)625 621 609 99.4 97.4 56.0-143 1.95 20 Methyl tert-butyl ether 125 138 135 110 108 66.0-132 2.20 20 Naphthalene 125 104 133 83.2 106 59.0-130 J3 24.5 20 n-Propylbenzene 125 106 98.0 84.8 78.4 74.0-126 7.84 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/25/21 18:20 18 of 38 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/26/21 09:53 18 of 38 QUALITY CONTROL SUMMARYWG1672940 Volatile Organic Compounds (GC/MS) by Method 8260D L1352603-01 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3657767-1 05/18/21 22:02 • (LCSD) R3657767-2 05/18/21 22:21 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte ug/kg ug/kg ug/kg %%%%% Styrene 125 132 128 106 102 72.0-127 3.08 20 1,1,1,2-Tetrachloroethane 125 129 123 103 98.4 74.0-129 4.76 20 1,1,2,2-Tetrachloroethane 125 97.6 94.9 78.1 75.9 68.0-128 2.81 20 Tetrachloroethene 125 117 110 93.6 88.0 70.0-136 6.17 20 Toluene 125 115 110 92.0 88.0 75.0-121 4.44 20 1,2,3-Trichlorobenzene 125 98.8 125 79.0 100 59.0-139 J3 23.4 20 1,2,4-Trichlorobenzene 125 109 140 87.2 112 62.0-137 J3 24.9 20 1,1,1-Trichloroethane 125 126 120 101 96.0 69.0-126 4.88 20 1,1,2-Trichloroethane 125 116 111 92.8 88.8 78.0-123 4.41 20 Trichloroethene 125 129 128 103 102 76.0-126 0.778 20 Trichlorofluoromethane 125 107 104 85.6 83.2 61.0-142 2.84 20 1,2,3-Trichloropropane 125 111 104 88.8 83.2 67.0-129 6.51 20 1,2,4-Trimethylbenzene 125 117 115 93.6 92.0 70.0-126 1.72 20 1,3,5-Trimethylbenzene 125 115 109 92.0 87.2 73.0-127 5.36 20 Vinyl chloride 125 102 104 81.6 83.2 63.0-134 1.94 20 Xylenes, Total 375 367 376 97.9 100 72.0-127 2.42 20 (S) Toluene-d8 97.1 96.1 75.0-131 (S) 4-Bromofluorobenzene 115 115 67.0-138 (S) 1,2-Dichloroethane-d4 103 104 70.0-130 L1352603-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1352603-01 05/19/21 02:27 • (MS) R3657767-4 05/19/21 06:33 • (MSD) R3657767-5 05/19/21 06:52 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte ug/kg ug/kg ug/kg ug/kg %%%%% Acrylonitrile 1200 U 1010 1170 84.0 98.1 1.23 10.0-160 15.4 40 Bromobenzene 239 U 144 168 60.0 70.1 1.23 10.0-156 15.6 38 Acetone 1200 102 862 967 63.5 72.2 1.23 10.0-160 11.4 40 n-Butylbenzene 239 U 130 130 54.2 54.5 1.23 10.0-160 0.598 40 sec-Butylbenzene 239 U 129 142 53.8 59.2 1.23 10.0-159 9.53 39 tert-Butylbenzene 239 U 126 143 52.5 59.9 1.23 10.0-156 13.3 39 Benzene 239 U 119 129 49.7 54.0 1.23 10.0-149 8.26 37 Bromodichloromethane 239 U 148 159 61.8 66.2 1.23 10.0-143 6.90 37 Bromoform 239 U 182 185 76.0 77.3 1.23 10.0-146 1.69 36 Bromomethane 239 U 42.1 53.9 17.6 22.5 1.23 10.0-149 24.6 38 2-Chlorotoluene 239 U 127 150 53.2 62.6 1.23 10.0-159 16.3 38 4-Chlorotoluene 239 U 136 159 56.9 66.2 1.23 10.0-155 15.2 39 Carbon tetrachloride 239 U 79.1 105 33.1 43.7 1.23 10.0-145 27.7 37 Dibromomethane 239 U 168 180 70.1 75.3 1.23 10.0-147 7.14 35 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/25/21 18:20 19 of 38 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/26/21 09:53 19 of 38 QUALITY CONTROL SUMMARYWG1672940 Volatile Organic Compounds (GC/MS) by Method 8260D L1352603-01 L1352603-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1352603-01 05/19/21 02:27 • (MS) R3657767-4 05/19/21 06:33 • (MSD) R3657767-5 05/19/21 06:52 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte ug/kg ug/kg ug/kg ug/kg %%%%% Chlorobenzene 239 U 134 147 56.0 61.4 1.23 10.0-152 9.07 39 Chlorodibromomethane 239 U 182 191 76.0 79.9 1.23 10.0-146 5.00 37 Chloroethane 239 U 23.0 29.2 9.61 12.2 1.23 10.0-146 J6 23.8 40 Chloroform 239 U 120 132 50.2 55.3 1.23 10.0-146 9.61 37 Chloromethane 239 U 76.8 81.1 32.1 33.9 1.23 10.0-159 5.51 37 1,2-Dibromo-3-Chloropropane 239 U 193 216 80.5 90.3 1.23 10.0-151 11.4 39 1,2-Dibromoethane 239 U 199 208 83.1 87.0 1.23 10.0-148 4.58 34 1,2-Dichlorobenzene 239 U 177 182 74.0 76.0 1.23 10.0-155 2.60 37 1,1-Dichloropropene 239 U 92.6 105 38.7 43.9 1.23 10.0-153 12.6 35 1,3-Dichlorobenzene 239 U 149 160 62.2 66.9 1.23 10.0-153 7.24 38 1,3-Dichloropropane 239 U 193 200 80.5 83.8 1.23 10.0-154 3.95 35 1,4-Dichlorobenzene 239 U 155 162 64.7 67.5 1.23 10.0-151 4.22 38 Dichlorodifluoromethane 239 U 77.2 85.3 32.3 35.6 1.23 10.0-160 9.94 35 2,2-Dichloropropane 239 U 73.3 82.2 30.6 34.4 1.23 10.0-138 11.4 36 1,1-Dichloroethane 239 U 114 129 47.8 53.9 1.23 10.0-147 12.0 37 1,2-Dichloroethane 239 U 166 182 69.5 76.0 1.23 10.0-148 8.93 35 Di-isopropyl ether 239 U 168 180 70.1 75.3 1.23 10.0-147 7.14 36 1,1-Dichloroethene 239 U 97.0 107 40.5 44.5 1.23 10.0-155 9.47 37 cis-1,2-Dichloroethene 239 U 126 135 52.7 56.6 1.23 10.0-149 7.01 37 trans-1,2-Dichloroethene 239 U 102 113 42.8 47.1 1.23 10.0-150 9.68 37 1,2-Dichloropropane 239 U 143 155 59.5 64.9 1.23 10.0-148 8.66 37 Hexachloro-1,3-butadiene 239 U 191 153 79.9 63.8 1.23 10.0-160 22.4 40 cis-1,3-Dichloropropene 239 U 152 155 63.6 64.9 1.23 10.0-151 2.12 37 trans-1,3-Dichloropropene 239 U 183 197 76.6 82.5 1.23 10.0-148 7.35 37 p-Isopropyltoluene 239 U 132 138 55.3 57.5 1.23 10.0-160 3.91 40 Ethylbenzene 239 U 116 127 48.4 53.2 1.23 10.0-160 9.45 38 Naphthalene 239 U 239 256 100 107 1.23 10.0-160 6.90 36 n-Propylbenzene 239 U 113 130 47.3 54.5 1.23 10.0-158 14.0 38 Isopropylbenzene 239 U 123 129 51.4 54.1 1.23 10.0-155 5.17 38 1,1,1,2-Tetrachloroethane 239 U 144 162 60.3 67.5 1.23 10.0-149 11.3 39 2-Butanone (MEK)1200 168 1040 1150 72.9 81.9 1.23 10.0-160 9.94 40 Methylene Chloride 239 U 17.4 23.9 7.27 10.0 1.23 10.0-141 J6 31.6 37 4-Methyl-2-pentanone (MIBK)1200 U 1100 1190 91.8 99.2 1.23 10.0-160 7.75 35 Methyl tert-butyl ether 239 U 200 221 83.8 92.2 1.23 11.0-147 9.59 35 Styrene 239 U 146 151 61.2 63.0 1.23 10.0-160 2.93 40 1,2,3-Trichloropropane 239 U 207 246 86.4 103 1.23 10.0-156 17.2 35 1,1,2,2-Tetrachloroethane 239 U 196 235 81.8 98.1 1.23 10.0-160 18.1 35 1,2,4-Trimethylbenzene 239 U 135 143 56.3 59.9 1.23 10.0-160 6.26 36 Tetrachloroethene 239 U 99.8 114 41.7 47.8 1.23 10.0-156 13.6 39 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/25/21 18:20 20 of 38 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/26/21 09:53 20 of 38 QUALITY CONTROL SUMMARYWG1672940 Volatile Organic Compounds (GC/MS) by Method 8260D L1352603-01 L1352603-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1352603-01 05/19/21 02:27 • (MS) R3657767-4 05/19/21 06:33 • (MSD) R3657767-5 05/19/21 06:52 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte ug/kg ug/kg ug/kg ug/kg %%%%% 1,3,5-Trimethylbenzene 239 U 125 139 52.1 58.1 1.23 10.0-160 10.7 38 Toluene 239 U 120 135 49.9 56.3 1.23 10.0-156 12.0 38 1,2,3-Trichlorobenzene 239 U 219 211 91.6 88.3 1.23 10.0-160 3.61 40 1,2,4-Trichlorobenzene 239 U 208 186 87.0 77.9 1.23 10.0-160 11.0 40 1,1,1-Trichloroethane 239 U 98.7 106 41.2 44.4 1.23 10.0-144 7.43 35 1,1,2-Trichloroethane 239 U 190 205 79.2 85.7 1.23 10.0-160 7.87 35 Trichloroethene 239 U 106 121 44.2 50.4 1.23 10.0-156 13.0 38 Trichlorofluoromethane 239 U 31.4 42.3 13.1 17.7 1.23 10.0-160 29.5 40 Vinyl chloride 239 U 67.9 77.1 28.4 32.2 1.23 10.0-160 12.6 37 Xylenes, Total 718 2.00 371 402 51.5 55.8 1.23 10.0-160 8.03 38 (S) Toluene-d8 103 105 75.0-131 (S) 4-Bromofluorobenzene 105 103 67.0-138 (S) 1,2-Dichloroethane-d4 98.0 100 70.0-130 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/25/21 18:20 21 of 38 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/26/21 09:53 21 of 38 QUALITY CONTROL SUMMARYWG1672928 TPH by Method MADEPE L1352603-01 Method Blank (MB) (MB) R3658217-1 05/21/21 08:33 MB Result MB Qualifier MB MDL MB RDL Analyte ug/kg ug/kg ug/kg Unadjusted C9-C18 Aliphatics 2310 J 2170 6500 Unadjusted C19-C36 Aliphatics U 2170 6500 Unadjusted Total Petroleum Hydrocarbons 2310 J 2170 6500 (S) 1-Chloro-octadecane 69.7 40.0-140 Method Blank (MB) (MB) R3658217-4 05/21/21 09:40 MB Result MB Qualifier MB MDL MB RDL Analyte ug/kg ug/kg ug/kg Unadjusted C11-C22 Aromatics 3020 J 2170 6500 Unadjusted Total Petroleum Hydrocarbons 3020 J 2170 6500 (S) o-Terphenyl 59.0 40.0-140 (S) 2-Fluorobiphenyl 72.6 40.0-140 (S) 2-Bromonaphthalene 74.1 40.0-140 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3658217-2 05/21/21 08:56 • (LCSD) R3658217-3 05/21/21 09:18 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte ug/kg ug/kg ug/kg %%%%% Unadjusted C9-C18 Aliphatics 39900 22800 21500 57.1 53.9 40.0-140 5.87 25 Unadjusted C19-C36 Aliphatics 53200 40100 37400 75.4 70.3 40.0-140 6.97 25 (S) 1-Chloro-octadecane 75.0 68.4 40.0-140 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3658217-5 05/21/21 10:03 • (LCSD) R3658217-6 05/21/21 10:25 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte ug/kg ug/kg ug/kg %%%%% Unadjusted C11-C22 Aromatics 113000 87300 84800 77.3 75.0 40.0-140 2.91 25 (S) o-Terphenyl 66.5 62.0 40.0-140 (S) 2-Fluorobiphenyl 75.2 77.6 40.0-140 (S) 2-Bromonaphthalene 76.7 79.7 40.0-140 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/25/21 18:20 22 of 38 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/26/21 09:53 22 of 38 QUALITY CONTROL SUMMARYWG1672928 TPH by Method MADEPE L1352603-01 L1352603-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1352603-01 05/22/21 08:47 • (MS) R3657889-1 05/22/21 09:10 • (MSD) R3657889-2 05/22/21 09:34 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte ug/kg ug/kg ug/kg ug/kg %%%%% Unadjusted C11-C22 Aromatics 147000 9800 82200 94800 49.1 57.6 1 40.0-140 14.2 50 (S) o-Terphenyl 53.0 63.0 40.0-140 (S) 2-Fluorobiphenyl 84.4 83.1 40.0-140 (S) 2-Bromonaphthalene 87.8 86.3 40.0-140 L1352603-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1352603-01 05/22/21 02:18 • (MS) R3658425-1 05/22/21 02:40 • (MSD) R3658425-2 05/22/21 03:02 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte ug/kg ug/kg ug/kg ug/kg %%%%% Unadjusted C9-C18 Aliphatics 52100 4760 20600 24300 30.5 37.5 1 40.0-140 J6 J6 16.3 50 Unadjusted C19-C36 Aliphatics 69400 3470 33800 40500 43.7 53.3 1 40.0-140 17.9 50 (S) 1-Chloro-octadecane 46.6 55.1 40.0-140 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/25/21 18:20 23 of 38 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/26/21 09:53 23 of 38 QUALITY CONTROL SUMMARYWG1673527 TPH by Method MADEPE L1352603-02 Method Blank (MB) (MB) R3658223-1 05/20/21 17:21 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l Unadjusted C9-C18 Aliphatics 41.9 J 33.3 100 Unadjusted C19-C36 Aliphatics 63.3 J 33.3 100 (S) 1-Chloro-octadecane 81.8 40.0-140 Method Blank (MB) (MB) R3658223-4 05/21/21 03:00 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l Unadjusted C11-C22 Aromatics 51.5 J 33.3 100 (S) o-Terphenyl 72.9 40.0-140 (S) 2-Fluorobiphenyl 81.8 40.0-140 (S) 2-Bromonaphthalene 83.6 40.0-140 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3658223-2 05/20/21 17:43 • (LCSD) R3658223-3 05/20/21 18:05 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte ug/l ug/l ug/l %%%%% Unadjusted C9-C18 Aliphatics 600 303 327 50.5 54.5 40.0-140 7.62 25 Unadjusted C19-C36 Aliphatics 800 604 656 75.5 82.0 40.0-140 8.25 25 (S) 1-Chloro-octadecane 75.0 81.4 40.0-140 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3658223-5 05/21/21 03:22 • (LCSD) R3658223-6 05/21/21 03:44 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte ug/l ug/l ug/l %%%%% Unadjusted C11-C22 Aromatics 1700 1330 1460 78.2 85.9 40.0-140 9.32 25 (S) o-Terphenyl 69.0 70.6 40.0-140 (S) 2-Fluorobiphenyl 72.1 75.6 40.0-140 (S) 2-Bromonaphthalene 75.3 78.9 40.0-140 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/25/21 18:20 24 of 38 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/26/21 09:53 24 of 38 QUALITY CONTROL SUMMARYWG1672836 Semi Volatile Organic Compounds (GC/MS) by Method 625.1 L1352603-02 Method Blank (MB) (MB) R3656928-3 05/20/21 00:10 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l Acenaphthene U 0.0886 1.00 Acenaphthylene U 0.0921 1.00 Anthracene U 0.0804 1.00 Benzidine U 3.74 10.0 Benzo(a)anthracene U 0.199 1.00 Benzo(b)fluoranthene U 0.130 1.00 Benzo(k)fluoranthene U 0.120 1.00 Benzo(g,h,i)perylene U 0.121 1.00 Benzo(a)pyrene U 0.0381 1.00 Bis(2-chlorethoxy)methane U 0.116 10.0 Bis(2-chloroethyl)ether U 0.137 10.0 2,2-Oxybis(1-Chloropropane)U 0.210 10.0 4-Bromophenyl-phenylether U 0.0877 10.0 2-Chloronaphthalene U 0.0648 1.00 4-Chlorophenyl-phenylether U 0.0926 10.0 Chrysene U 0.130 1.00 Dibenz(a,h)anthracene U 0.0644 1.00 3,3-Dichlorobenzidine U 0.212 10.0 2,4-Dinitrotoluene U 0.0983 10.0 2,6-Dinitrotoluene U 0.250 10.0 Fluoranthene U 0.102 1.00 Fluorene U 0.0844 1.00 Hexachlorobenzene U 0.0755 1.00 Hexachloro-1,3-butadiene U 0.0968 10.0 Hexachlorocyclopentadiene U 0.0598 10.0 Hexachloroethane U 0.127 10.0 Indeno(1,2,3-cd)pyrene U 0.279 1.00 Isophorone U 0.143 10.0 Naphthalene U 0.159 1.00 Nitrobenzene U 0.297 10.0 n-Nitrosodimethylamine U 0.998 10.0 n-Nitrosodiphenylamine U 2.37 10.0 n-Nitrosodi-n-propylamine U 0.261 10.0 Phenanthrene U 0.112 1.00 Benzylbutyl phthalate U 0.765 3.00 Bis(2-ethylhexyl)phthalate U 0.895 3.00 Di-n-butyl phthalate U 0.453 3.00 Diethyl phthalate U 0.287 3.00 Dimethyl phthalate U 0.260 3.00 Di-n-octyl phthalate U 0.932 3.00 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/25/21 18:20 25 of 38 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/26/21 09:53 25 of 38 QUALITY CONTROL SUMMARYWG1672836 Semi Volatile Organic Compounds (GC/MS) by Method 625.1 L1352603-02 Method Blank (MB) (MB) R3656928-3 05/20/21 00:10 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l Pyrene U 0.107 1.00 1,2,4-Trichlorobenzene U 0.0698 10.0 4-Chloro-3-methylphenol U 0.131 10.0 2-Chlorophenol U 0.133 10.0 2,4-Dichlorophenol U 0.102 10.0 2,4-Dimethylphenol U 0.0636 10.0 4,6-Dinitro-2-methylphenol U 1.12 10.0 2,4-Dinitrophenol U 5.93 10.0 2-Nitrophenol U 0.117 10.0 4-Nitrophenol U 0.143 10.0 Pentachlorophenol U 0.313 10.0 Phenol U 4.33 10.0 2,4,6-Trichlorophenol U 0.100 10.0 (S) Nitrobenzene-d5 37.7 15.0-314 (S) 2-Fluorobiphenyl 41.3 22.0-127 (S) p-Terphenyl-d14 83.7 29.0-141 (S) Phenol-d5 12.7 8.00-424 (S) 2-Fluorophenol 18.8 10.0-120 (S) 2,4,6-Tribromophenol 38.6 10.0-153 Method Blank (MB) - TENTATIVELY IDENTIFIED COMPOUNDS (MB) R3656928-3 05/20/21 00:10 MB Result MB Qualifier MB MDL MB RDL CAS # Analyte ug/l ug/l ug/l Number of TICs found: 0 Tentatively Identified compounds (TIC) refers to substances not present in the list of target compounds. Therefore, not all TICs are identified and quantitated using individual standards. TIC listings are prepared utilizing a computerized library search routine of electron impact mass spectral data and evaluation of the relevant data by a mass spectral data specialist. Quantitation is accomplished by relative peak area of the TIC compared to that of the nearest internal standard from the total ion chromatogram. TICs are identified and quantitated only if the peak area is 10% or more of that of the nearest internal standard. Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3656928-1 05/19/21 23:27 • (LCSD) R3656928-2 05/19/21 23:48 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte ug/l ug/l ug/l %%%%% Acenaphthene 50.0 21.4 28.9 42.8 57.8 47.0-145 J4 29.8 48 Acenaphthylene 50.0 22.8 30.6 45.6 61.2 33.0-145 29.2 74 Anthracene 50.0 31.7 36.8 63.4 73.6 27.0-133 14.9 66 Benzidine 100 23.7 27.5 23.7 27.5 1.00-120 14.8 36 Benzo(a)anthracene 50.0 38.9 44.9 77.8 89.8 33.0-143 14.3 53 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/25/21 18:20 26 of 38 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/26/21 09:53 26 of 38 QUALITY CONTROL SUMMARYWG1672836 Semi Volatile Organic Compounds (GC/MS) by Method 625.1 L1352603-02 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3656928-1 05/19/21 23:27 • (LCSD) R3656928-2 05/19/21 23:48 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte ug/l ug/l ug/l %%%%% Benzo(b)fluoranthene 50.0 39.8 44.8 79.6 89.6 24.0-159 11.8 71 Benzo(k)fluoranthene 50.0 39.2 44.8 78.4 89.6 11.0-162 13.3 63 Benzo(g,h,i)perylene 50.0 40.3 45.5 80.6 91.0 1.00-219 12.1 97 Benzo(a)pyrene 50.0 34.7 40.3 69.4 80.6 17.0-163 14.9 72 Bis(2-chlorethoxy)methane 50.0 18.8 24.9 37.6 49.8 1.00-219 27.9 54 Bis(2-chloroethyl)ether 50.0 17.4 23.5 34.8 47.0 33.0-185 29.8 108 2,2-Oxybis(1-Chloropropane)50.0 17.3 23.3 34.6 46.6 36.0-166 J4 29.6 76 4-Bromophenyl-phenylether 50.0 29.2 36.5 58.4 73.0 53.0-127 22.2 43 2-Chloronaphthalene 50.0 20.5 27.7 41.0 55.4 60.0-120 J4 J3 J4 29.9 24 4-Chlorophenyl-phenylether 50.0 24.1 32.2 48.2 64.4 25.0-158 28.8 61 Chrysene 50.0 37.6 43.1 75.2 86.2 17.0-168 13.6 87 Dibenz(a,h)anthracene 50.0 42.0 47.7 84.0 95.4 1.00-227 12.7 126 3,3-Dichlorobenzidine 100 62.6 82.7 62.6 82.7 1.00-262 27.7 108 2,4-Dinitrotoluene 50.0 32.5 37.2 65.0 74.4 39.0-139 13.5 42 2,6-Dinitrotoluene 50.0 26.4 33.6 52.8 67.2 50.0-158 24.0 48 Fluoranthene 50.0 37.7 42.8 75.4 85.6 26.0-137 12.7 66 Fluorene 50.0 24.5 31.7 49.0 63.4 59.0-121 J4 25.6 38 Hexachlorobenzene 50.0 29.4 37.3 58.8 74.6 1.00-152 23.7 55 Hexachloro-1,3-butadiene 50.0 16.8 22.7 33.6 45.4 24.0-120 29.9 62 Hexachlorocyclopentadiene 50.0 5.19 7.96 10.4 15.9 10.0-120 J3 42.1 31 Hexachloroethane 50.0 16.7 22.5 33.4 45.0 40.0-120 J4 29.6 52 Indeno(1,2,3-cd)pyrene 50.0 41.5 47.8 83.0 95.6 1.00-171 14.1 99 Isophorone 50.0 20.1 26.4 40.2 52.8 21.0-196 27.1 93 Naphthalene 50.0 18.3 22.9 36.6 45.8 21.0-133 22.3 65 Nitrobenzene 50.0 18.6 24.3 37.2 48.6 35.0-180 26.6 62 n-Nitrosodimethylamine 50.0 14.0 17.2 28.0 34.4 10.0-120 20.5 34 n-Nitrosodiphenylamine 50.0 27.0 35.3 54.0 70.6 44.0-120 J3 26.6 21 n-Nitrosodi-n-propylamine 50.0 19.1 25.4 38.2 50.8 1.00-230 28.3 87 Phenanthrene 50.0 30.2 35.9 60.4 71.8 54.0-120 17.2 39 Benzylbutyl phthalate 50.0 40.9 45.0 81.8 90.0 1.00-152 9.55 60 Bis(2-ethylhexyl)phthalate 50.0 38.2 44.9 76.4 89.8 8.00-158 16.1 82 Di-n-butyl phthalate 50.0 41.1 45.5 82.2 91.0 1.00-120 10.2 47 Diethyl phthalate 50.0 31.4 36.7 62.8 73.4 1.00-120 15.6 100 Dimethyl phthalate 50.0 27.5 34.3 55.0 68.6 1.00-120 22.0 183 Di-n-octyl phthalate 50.0 40.7 47.0 81.4 94.0 4.00-146 14.4 69 Pyrene 50.0 39.6 42.7 79.2 85.4 52.0-120 7.53 49 1,2,4-Trichlorobenzene 50.0 17.9 23.2 35.8 46.4 44.0-142 J4 25.8 50 4-Chloro-3-methylphenol 50.0 19.3 24.3 38.6 48.6 22.0-147 22.9 73 2-Chlorophenol 50.0 15.4 22.2 30.8 44.4 23.0-134 36.2 61 2,4-Dichlorophenol 50.0 18.6 24.6 37.2 49.2 39.0-135 J4 27.8 50 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/25/21 18:20 27 of 38 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/26/21 09:53 27 of 38 QUALITY CONTROL SUMMARYWG1672836 Semi Volatile Organic Compounds (GC/MS) by Method 625.1 L1352603-02 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3656928-1 05/19/21 23:27 • (LCSD) R3656928-2 05/19/21 23:48 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte ug/l ug/l ug/l %%%%% 2,4-Dimethylphenol 50.0 16.6 22.8 33.2 45.6 32.0-120 31.5 58 4,6-Dinitro-2-methylphenol 50.0 36.1 41.6 72.2 83.2 1.00-181 14.2 203 2,4-Dinitrophenol 50.0 24.2 31.2 48.4 62.4 1.00-191 25.3 132 2-Nitrophenol 50.0 20.2 26.2 40.4 52.4 29.0-182 25.9 55 4-Nitrophenol 50.0 12.0 14.6 24.0 29.2 1.00-132 19.5 131 Pentachlorophenol 50.0 34.7 41.8 69.4 83.6 14.0-176 18.6 86 Phenol 50.0 7.45 10.4 14.9 20.8 5.00-120 33.1 64 2,4,6-Trichlorophenol 50.0 23.4 32.6 46.8 65.2 37.0-144 32.9 58 (S) Nitrobenzene-d5 33.9 43.2 15.0-314 (S) 2-Fluorobiphenyl 45.0 62.9 22.0-127 (S) p-Terphenyl-d14 73.6 82.6 29.0-141 (S) Phenol-d5 14.8 20.9 8.00-424 (S) 2-Fluorophenol 19.8 30.0 10.0-120 (S) 2,4,6-Tribromophenol 60.0 75.0 10.0-153 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/25/21 18:20 28 of 38 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/26/21 09:53 28 of 38 QUALITY CONTROL SUMMARYWG1672789 Semi Volatile Organic Compounds (GC/MS) by Method 8270E L1352603-01 Method Blank (MB) (MB) R3656567-2 05/19/21 14:44 MB Result MB Qualifier MB MDL MB RDL Analyte ug/kg ug/kg ug/kg Acenaphthene U 5.39 33.3 Acenaphthylene U 4.69 33.3 Acetophenone U 10.4 333 Anthracene U 5.93 33.3 Atrazine U 11.5 333 Benzaldehyde U 17.7 333 Benzo(a)anthracene U 5.87 33.3 Benzo(b)fluoranthene U 6.21 33.3 Benzo(k)fluoranthene U 5.92 33.3 Benzo(g,h,i)perylene U 6.09 33.3 Benzo(a)pyrene U 6.19 33.3 Biphenyl U 10.6 333 Bis(2-chlorethoxy)methane U 10.0 333 Bis(2-chloroethyl)ether U 11.0 333 2,2-Oxybis(1-Chloropropane)U 14.4 333 4-Bromophenyl-phenylether U 11.7 333 Caprolactam U 16.5 333 Carbazole U 10.3 333 4-Chloroaniline U 12.0 333 2-Chloronaphthalene U 5.85 33.3 4-Chlorophenyl-phenylether U 11.6 333 Chrysene U 6.62 33.3 Dibenz(a,h)anthracene U 9.23 33.3 Dibenzofuran U 10.9 333 3,3-Dichlorobenzidine U 12.3 333 2,4-Dinitrotoluene U 9.55 333 2,6-Dinitrotoluene U 10.9 333 Fluoranthene U 6.01 33.3 Fluorene U 5.42 33.3 Hexachlorobenzene U 11.8 333 Hexachloro-1,3-butadiene U 11.2 333 Hexachlorocyclopentadiene U 17.5 333 Hexachloroethane U 13.1 333 Indeno(1,2,3-cd)pyrene U 9.41 33.3 Isophorone U 10.2 333 2-Methylnaphthalene U 4.32 33.3 Naphthalene U 8.36 33.3 2-Nitroaniline U 10.7 333 3-Nitroaniline U 10.6 333 4-Nitroaniline U 9.71 333 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/25/21 18:20 29 of 38 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/26/21 09:53 29 of 38 QUALITY CONTROL SUMMARYWG1672789 Semi Volatile Organic Compounds (GC/MS) by Method 8270E L1352603-01 Method Blank (MB) (MB) R3656567-2 05/19/21 14:44 MB Result MB Qualifier MB MDL MB RDL Analyte ug/kg ug/kg ug/kg Nitrobenzene U 11.6 333 n-Nitrosodiphenylamine U 25.2 333 n-Nitrosodi-n-propylamine U 11.1 333 Phenanthrene U 6.61 33.3 Benzylbutyl phthalate U 10.4 333 Bis(2-ethylhexyl)phthalate U 42.2 333 Di-n-butyl phthalate U 11.4 333 Diethyl phthalate U 11.0 333 Dimethyl phthalate U 70.6 333 Di-n-octyl phthalate U 22.5 333 Pyrene U 6.48 33.3 4-Chloro-3-methylphenol U 10.8 333 2-Chlorophenol U 11.0 333 2-Methylphenol U 10.0 333 3&4-Methyl Phenol U 10.4 333 2,4-Dichlorophenol U 9.70 333 2,4-Dimethylphenol U 8.70 333 4,6-Dinitro-2-methylphenol U 75.5 333 2,4-Dinitrophenol U 77.9 333 2-Nitrophenol U 11.9 333 4-Nitrophenol U 10.4 333 Pentachlorophenol U 8.96 333 Phenol U 13.4 333 1,2,4,5-Tetrachlorobenzene U 15.9 333 2,4,5-Trichlorophenol U 11.3 333 2,4,6-Trichlorophenol U 10.7 333 2,3,4,6-Tetrachlorophenol U 12.6 333 (S) Nitrobenzene-d5 63.4 10.0-122 (S) 2-Fluorobiphenyl 70.9 15.0-120 (S) p-Terphenyl-d14 76.3 10.0-120 (S) Phenol-d5 69.7 10.0-120 (S) 2-Fluorophenol 74.2 12.0-120 (S) 2,4,6-Tribromophenol 68.9 10.0-127 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/25/21 18:20 30 of 38 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/26/21 09:53 30 of 38 QUALITY CONTROL SUMMARYWG1672789 Semi Volatile Organic Compounds (GC/MS) by Method 8270E L1352603-01 Laboratory Control Sample (LCS) (LCS) R3656567-1 05/19/21 14:22 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte ug/kg ug/kg %% Acenaphthene 666 478 71.8 38.0-120 Acenaphthylene 666 490 73.6 40.0-120 Acetophenone 666 471 70.7 29.0-120 Anthracene 666 500 75.1 42.0-120 Atrazine 666 562 84.4 43.0-120 Benzaldehyde 666 566 85.0 10.0-160 Benzo(a)anthracene 666 569 85.4 44.0-120 Benzo(b)fluoranthene 666 547 82.1 43.0-120 Benzo(k)fluoranthene 666 547 82.1 44.0-120 Benzo(g,h,i)perylene 666 548 82.3 43.0-120 Benzo(a)pyrene 666 545 81.8 45.0-120 Biphenyl 666 462 69.4 39.0-120 Bis(2-chlorethoxy)methane 666 391 58.7 20.0-120 Bis(2-chloroethyl)ether 666 456 68.5 16.0-120 2,2-Oxybis(1-Chloropropane)666 438 65.8 23.0-120 4-Bromophenyl-phenylether 666 513 77.0 40.0-120 Caprolactam 666 767 115 38.0-120 Carbazole 666 532 79.9 48.0-120 4-Chloroaniline 666 366 55.0 18.0-120 2-Chloronaphthalene 666 463 69.5 35.0-120 4-Chlorophenyl-phenylether 666 509 76.4 40.0-120 Chrysene 666 526 79.0 43.0-120 Dibenz(a,h)anthracene 666 553 83.0 44.0-120 Dibenzofuran 666 485 72.8 44.0-120 3,3-Dichlorobenzidine 1330 1020 76.7 28.0-120 2,4-Dinitrotoluene 666 529 79.4 45.0-120 2,6-Dinitrotoluene 666 506 76.0 42.0-120 Fluoranthene 666 542 81.4 44.0-120 Fluorene 666 489 73.4 41.0-120 Hexachlorobenzene 666 504 75.7 39.0-120 Hexachloro-1,3-butadiene 666 368 55.3 15.0-120 Hexachlorocyclopentadiene 666 360 54.1 15.0-120 Hexachloroethane 666 435 65.3 17.0-120 Indeno(1,2,3-cd)pyrene 666 555 83.3 45.0-120 Isophorone 666 404 60.7 23.0-120 2-Methylnaphthalene 666 362 54.4 34.0-120 Naphthalene 666 363 54.5 18.0-120 2-Nitroaniline 666 560 84.1 46.0-120 3-Nitroaniline 666 541 81.2 36.0-120 4-Nitroaniline 666 1100 165 36.0-120 J4 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/25/21 18:20 31 of 38 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/26/21 09:53 31 of 38 QUALITY CONTROL SUMMARYWG1672789 Semi Volatile Organic Compounds (GC/MS) by Method 8270E L1352603-01 Laboratory Control Sample (LCS) (LCS) R3656567-1 05/19/21 14:22 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte ug/kg ug/kg %% Nitrobenzene 666 392 58.9 17.0-120 n-Nitrosodiphenylamine 666 517 77.6 40.0-120 n-Nitrosodi-n-propylamine 666 483 72.5 26.0-120 Phenanthrene 666 503 75.5 42.0-120 Benzylbutyl phthalate 666 588 88.3 40.0-120 Bis(2-ethylhexyl)phthalate 666 597 89.6 41.0-120 Di-n-butyl phthalate 666 564 84.7 43.0-120 Diethyl phthalate 666 533 80.0 43.0-120 Dimethyl phthalate 666 515 77.3 43.0-120 Di-n-octyl phthalate 666 599 89.9 40.0-120 Pyrene 666 540 81.1 41.0-120 4-Chloro-3-methylphenol 666 397 59.6 28.0-120 2-Chlorophenol 666 487 73.1 28.0-120 2-Methylphenol 666 485 72.8 35.0-120 3&4-Methyl Phenol 666 549 82.4 42.0-120 2,4-Dichlorophenol 666 392 58.9 25.0-120 2,4-Dimethylphenol 666 397 59.6 15.0-120 4,6-Dinitro-2-methylphenol 666 525 78.8 16.0-120 2,4-Dinitrophenol 666 382 57.4 10.0-120 2-Nitrophenol 666 398 59.8 20.0-120 4-Nitrophenol 666 542 81.4 27.0-120 Pentachlorophenol 666 494 74.2 29.0-120 Phenol 666 462 69.4 28.0-120 1,2,4,5-Tetrachlorobenzene 666 458 68.8 30.0-120 2,4,5-Trichlorophenol 666 473 71.0 38.0-120 2,4,6-Trichlorophenol 666 485 72.8 37.0-120 (S) Nitrobenzene-d5 64.6 10.0-122 (S) 2-Fluorobiphenyl 74.8 15.0-120 (S) p-Terphenyl-d14 78.4 10.0-120 (S) Phenol-d5 74.5 10.0-120 (S) 2-Fluorophenol 78.8 12.0-120 (S) 2,4,6-Tribromophenol 79.4 10.0-127 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/25/21 18:20 32 of 38 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/26/21 09:53 32 of 38 QUALITY CONTROL SUMMARYWG1672789 Semi Volatile Organic Compounds (GC/MS) by Method 8270E L1352603-01 L1352877-09 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1352877-09 05/21/21 01:14 • (MS) R3657563-2 05/21/21 01:35 • (MSD) R3657563-3 05/21/21 01:56 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte ug/kg ug/kg ug/kg ug/kg %%%%% Acenaphthene 751 U 453 469 60.4 63.3 1 18.0-120 3.53 32 Acenaphthylene 751 U 469 489 62.5 66.0 1 25.0-120 4.12 32 Anthracene 751 U 533 490 71.1 66.1 1 22.0-120 8.40 29 Benzo(a)anthracene 751 10.6 619 553 81.1 73.2 1 25.0-120 11.3 29 Benzo(b)fluoranthene 751 15.0 573 515 74.3 67.4 1 19.0-122 10.7 31 Benzo(k)fluoranthene 751 U 551 495 73.4 66.8 1 23.0-120 10.7 30 Benzo(g,h,i)perylene 751 7.20 417 394 54.6 52.2 1 10.0-120 5.73 33 Benzo(a)pyrene 751 11.5 568 518 74.2 68.4 1 24.0-120 9.20 30 Bis(2-chlorethoxy)methane 751 U 360 379 48.0 51.1 1 10.0-120 5.03 34 Bis(2-chloroethyl)ether 751 U 411 444 54.8 59.9 1 10.0-120 7.61 40 2,2-Oxybis(1-Chloropropane)751 U 393 417 52.3 56.3 1 10.0-120 6.03 40 4-Bromophenyl-phenylether 751 U 526 496 70.1 66.9 1 27.0-120 5.91 30 2-Chloronaphthalene 751 U 443 473 59.0 63.8 1 20.0-120 6.60 32 4-Chlorophenyl-phenylether 751 U 490 496 65.3 66.9 1 24.0-120 1.18 29 Chrysene 751 10.2 562 511 73.6 67.6 1 21.0-120 9.52 29 Dibenz(a,h)anthracene 751 U 451 428 60.1 57.7 1 10.0-120 5.29 32 Dibenzofuran 751 U 472 485 62.8 65.4 1 24.0-120 2.67 30 3,3-Dichlorobenzidine 1500 U 826 831 55.1 55.9 1 10.0-120 0.561 34 2,4-Dinitrotoluene 751 U 540 492 72.0 66.3 1 30.0-120 9.46 31 2,6-Dinitrotoluene 751 U 472 465 62.8 62.7 1 25.0-120 1.49 31 Fluoranthene 751 20.0 581 538 74.7 69.9 1 18.0-126 7.68 32 Fluorene 751 U 507 492 67.5 66.3 1 25.0-120 3.03 30 Hexachlorobenzene 751 U 511 469 68.1 63.3 1 27.0-120 8.53 28 Hexachloro-1,3-butadiene 751 U 313 349 41.6 47.0 1 10.0-120 10.9 38 Hexachlorocyclopentadiene 751 U 188 170 25.1 22.9 1 10.0-120 10.4 40 Hexachloroethane 751 U 358 400 47.7 53.9 1 10.0-120 11.0 40 Indeno(1,2,3-cd)pyrene 751 U 462 432 61.6 58.3 1 10.0-120 6.75 32 Isophorone 751 U 378 401 50.3 54.1 1 13.0-120 5.97 34 Naphthalene 751 U 333 360 44.4 48.6 1 10.0-120 7.71 35 Nitrobenzene 751 U 336 370 44.7 49.8 1 10.0-120 9.56 36 n-Nitrosodiphenylamine 751 U 505 489 67.3 66.0 1 17.0-120 3.27 29 n-Nitrosodi-n-propylamine 751 U 466 483 62.1 65.2 1 10.0-120 3.67 37 Phenanthrene 751 10.9 538 502 70.2 66.2 1 17.0-120 6.93 31 Benzylbutyl phthalate 751 U 657 589 87.5 79.5 1 23.0-120 10.8 30 Bis(2-ethylhexyl)phthalate 751 U 636 565 84.7 76.2 1 17.0-126 11.8 30 Di-n-butyl phthalate 751 U 595 544 79.3 73.4 1 30.0-120 8.98 29 Diethyl phthalate 751 U 539 526 71.8 71.0 1 26.0-120 2.40 28 Dimethyl phthalate 751 U 508 509 67.6 68.7 1 25.0-120 0.229 29 Di-n-octyl phthalate 751 U 672 595 89.5 80.3 1 21.0-123 12.1 29 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/25/21 18:20 33 of 38 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/26/21 09:53 33 of 38 QUALITY CONTROL SUMMARYWG1672789 Semi Volatile Organic Compounds (GC/MS) by Method 8270E L1352603-01 L1352877-09 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1352877-09 05/21/21 01:14 • (MS) R3657563-2 05/21/21 01:35 • (MSD) R3657563-3 05/21/21 01:56 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte ug/kg ug/kg ug/kg ug/kg %%%%% Pyrene 751 17.8 565 512 72.9 66.7 1 16.0-121 9.71 32 4-Chloro-3-methylphenol 751 U 435 402 57.9 54.2 1 15.0-120 7.78 30 2-Chlorophenol 751 U 454 458 60.5 61.8 1 15.0-120 0.764 37 2-Methylphenol 751 U 453 457 60.4 61.6 1 11.0-120 0.766 40 3&4-Methyl Phenol 751 U 521 524 69.3 70.7 1 12.0-123 0.667 38 2,4-Dichlorophenol 751 U 401 402 53.4 54.2 1 20.0-120 0.289 31 2,4-Dimethylphenol 751 U 358 368 47.7 49.7 1 10.0-120 2.88 33 4,6-Dinitro-2-methylphenol 751 U 517 476 68.9 64.3 1 10.0-120 8.19 39 2,4-Dinitrophenol 751 U 501 496 66.7 66.9 1 10.0-121 0.932 40 2-Nitrophenol 751 U 358 383 47.7 51.7 1 12.0-120 6.90 39 4-Nitrophenol 751 U 662 614 88.2 82.8 1 10.0-137 7.65 32 Pentachlorophenol 751 U 607 533 80.8 71.9 1 10.0-160 12.8 31 Phenol 751 U 453 461 60.4 62.2 1 12.0-120 1.78 38 2,4,5-Trichlorophenol 751 U 555 518 74.0 69.9 1 20.0-120 6.93 30 2,4,6-Trichlorophenol 751 U 473 472 63.0 63.6 1 19.0-120 0.246 32 4-Chloroaniline 751 U 344 350 45.8 47.2 1 10.0-120 1.68 36 2-Methylnaphthalene 751 U 337 364 44.9 49.1 1 10.0-120 7.63 37 2-Nitroaniline 751 U 568 560 75.7 75.5 1 24.0-120 1.44 30 3-Nitroaniline 751 U 478 478 63.6 64.4 1 11.0-120 0.000 32 4-Nitroaniline 751 U 615 614 81.9 82.8 1 15.0-120 0.189 31 Acetophenone 751 U 442 462 58.8 62.4 1 10.0-120 4.63 37 Atrazine 751 U 597 539 79.6 72.7 1 20.0-131 10.2 28 Benzaldehyde 751 U 1270 1320 169 179 1 10.0-160 J5 J5 4.48 40 Biphenyl 751 U 432 464 57.6 62.5 1 15.0-120 7.00 33 Caprolactam 751 U 861 867 115 117 1 11.0-141 0.672 31 Carbazole 751 U 584 535 77.9 72.1 1 31.0-120 8.93 24 1,2,4,5-Tetrachlorobenzene 751 U 414 440 55.1 59.4 1 14.0-120 6.26 36 (S) Nitrobenzene-d5 49.8 56.7 10.0-122 (S) 2-Fluorobiphenyl 58.2 65.8 15.0-120 (S) p-Terphenyl-d14 67.2 63.3 10.0-120 (S) Phenol-d5 63.2 67.9 10.0-120 (S) 2-Fluorophenol 62.4 67.9 12.0-120 (S) 2,4,6-Tribromophenol 70.7 70.1 10.0-127 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/25/21 18:20 34 of 38 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/26/21 09:53 34 of 38 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. MDL (dry)Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RT Retention Time. RPD Relative Percent Difference. SDG Sample Delivery Group. (S) Surrogate (Surrogate Standard) - Analytes added to every blank, sample, Laboratory Control Sample/Duplicate and Matrix Spike/Duplicate; used to evaluate analytical efficiency by measuring recovery. Surrogates are not expected to be detected in all environmental media. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description B The same analyte is found in the associated blank. C3 The reported concentration is an estimate. The continuing calibration standard associated with this data responded low. Method sensitivity check is acceptable. C4 The reported concentration is an estimate. The continuing calibration standard associated with this data responded low. Data is likely to show a low bias concerning the result. C5 The reported concentration is an estimate. The continuing calibration standard associated with this data responded high.Data is likely to show a high bias concerning the result. J The identification of the analyte is acceptable; the reported value is an estimate. J3 The associated batch QC was outside the established quality control range for precision. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/25/21 18:20 35 of 38 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/26/21 09:53 35 of 38 GLOSSARY OF TERMS Qualifier Description J4 The associated batch QC was outside the established quality control range for accuracy. J5 The sample matrix interfered with the ability to make any accurate determination; spike value is high. J6 The sample matrix interfered with the ability to make any accurate determination; spike value is low. N The analyte is tentatively identified and the associated numerical value may not be consistent with the actual concentration present in the sample. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/25/21 18:20 36 of 38 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/26/21 09:53 36 of 38 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/25/21 18:20 37 of 38 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352603 05/26/21 09:53 37 of 38 ANALYTICAL REPORT May 25, 2021 Excel Civil & Environmental Associates Sample Delivery Group:L1352734 Samples Received:05/13/2021 Project Number:2020102 Description:Sam's Mart 80 Report To:Aaron Long 625 Huntsman Court Gastonia, NC 28054 Entire Report Reviewed By: May 25, 2021 [Preliminary Report] Heather J Wagner Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 www.pacenational.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 1 of 69 May 25, 2021 Heather J Wagner Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 1 of 69 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 7 Sr: Sample Results 8 S-1 L1352734-01 8 S-2 L1352734-02 10 S-3 L1352734-03 12 S-4 L1352734-04 14 S-5 L1352734-05 16 S-6 L1352734-06 18 S-7 L1352734-07 20 S-8 L1352734-08 22 S-9 L1352734-09 24 S-10 L1352734-10 26 S-11 L1352734-11 28 S-12 L1352734-12 30 S-13 L1352734-13 32 S-14 L1352734-14 34 S-15 L1352734-15 36 S-16 L1352734-16 38 S-17 L1352734-17 40 Qc: Quality Control Summary 42 Total Solids by Method 2540 G-2011 42 Volatile Organic Compounds (GC) by Method 8015C 45 Volatile Organic Compounds (GC/MS) by Method 8260D 47 Semi-Volatile Organic Compounds (GC) by Method 8015C 63 Gl: Glossary of Terms 65 Al: Accreditations & Locations 67 Sc: Sample Chain of Custody 68 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 2 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 2 of 69 SAMPLE SUMMARY Collected by Collected date/time Received date/time S-1 L1352734-01 Solid Billy Payne 05/12/21 08:45 05/13/21 15:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG1672933 1 05/18/21 22:08 05/18/21 22:17 KDW Mt. Juliet, TN Volatile Organic Compounds (GC) by Method 8015C WG1671953 38.3 05/12/21 08:45 05/17/21 16:49 DWR Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260D WG1672299 1.64 05/12/21 08:45 05/18/21 00:15 JHH Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260D WG1674625 1.64 05/12/21 08:45 05/21/21 01:31 BMB Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015C WG1673614 1 05/19/21 23:25 05/20/21 16:23 CAG Mt. Juliet, TN Collected by Collected date/time Received date/time S-2 L1352734-02 Solid Billy Payne 05/12/21 08:55 05/13/21 15:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG1672933 1 05/18/21 22:08 05/18/21 22:17 KDW Mt. Juliet, TN Volatile Organic Compounds (GC) by Method 8015C WG1671953 35.8 05/12/21 08:55 05/17/21 17:13 DWR Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260D WG1672299 1.39 05/12/21 08:55 05/18/21 00:34 JHH Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260D WG1674133 1.39 05/12/21 08:55 05/20/21 15:28 JHH Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015C WG1673614 1 05/19/21 23:25 05/20/21 15:17 CAG Mt. Juliet, TN Collected by Collected date/time Received date/time S-3 L1352734-03 Solid Billy Payne 05/12/21 09:05 05/13/21 15:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG1672933 1 05/18/21 22:08 05/18/21 22:17 KDW Mt. Juliet, TN Volatile Organic Compounds (GC) by Method 8015C WG1671953 34.5 05/12/21 09:05 05/17/21 17:37 DWR Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260D WG1672299 1.35 05/12/21 09:05 05/18/21 00:53 JHH Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260D WG1674133 1.35 05/12/21 09:05 05/20/21 18:56 BMB Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015C WG1673614 1 05/19/21 23:25 05/20/21 15:30 CAG Mt. Juliet, TN Collected by Collected date/time Received date/time S-4 L1352734-04 Solid Billy Payne 05/12/21 09:15 05/13/21 15:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG1672933 1 05/18/21 22:08 05/18/21 22:17 KDW Mt. Juliet, TN Volatile Organic Compounds (GC) by Method 8015C WG1671953 36 05/12/21 09:15 05/17/21 18:01 DWR Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260D WG1672299 1.45 05/12/21 09:15 05/18/21 01:12 JHH Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260D WG1674133 1.45 05/12/21 09:15 05/20/21 19:17 BMB Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015C WG1673614 1 05/19/21 23:25 05/20/21 15:43 CAG Mt. Juliet, TN Collected by Collected date/time Received date/time S-5 L1352734-05 Solid Billy Payne 05/12/21 09:25 05/13/21 15:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG1672933 1 05/18/21 22:08 05/18/21 22:17 KDW Mt. Juliet, TN Volatile Organic Compounds (GC) by Method 8015C WG1671953 39 05/12/21 09:25 05/17/21 18:25 DWR Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260D WG1672299 1.25 05/12/21 09:25 05/18/21 01:31 JHH Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260D WG1674133 1.25 05/12/21 09:25 05/20/21 19:38 BMB Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015C WG1673614 1 05/19/21 23:25 05/20/21 15:56 CAG Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 3 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 3 of 69 SAMPLE SUMMARY Collected by Collected date/time Received date/time S-6 L1352734-06 Solid Billy Payne 05/12/21 09:40 05/13/21 15:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG1672933 1 05/18/21 22:08 05/18/21 22:17 KDW Mt. Juliet, TN Volatile Organic Compounds (GC) by Method 8015C WG1671953 33 05/12/21 09:40 05/17/21 18:49 DWR Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260D WG1672299 1.25 05/12/21 09:40 05/18/21 01:50 JHH Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260D WG1674133 1.25 05/12/21 09:40 05/20/21 19:59 BMB Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015C WG1673614 1 05/19/21 23:25 05/20/21 16:49 CAG Mt. Juliet, TN Collected by Collected date/time Received date/time S-7 L1352734-07 Solid Billy Payne 05/12/21 09:50 05/13/21 15:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG1672934 1 05/18/21 22:01 05/18/21 22:07 KDW Mt. Juliet, TN Volatile Organic Compounds (GC) by Method 8015C WG1671953 36.5 05/12/21 09:50 05/17/21 19:13 DWR Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260D WG1672299 1.44 05/12/21 09:50 05/18/21 02:09 JHH Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260D WG1674133 1.44 05/12/21 09:50 05/20/21 20:20 BMB Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015C WG1673614 1 05/19/21 23:25 05/20/21 16:36 CAG Mt. Juliet, TN Collected by Collected date/time Received date/time S-8 L1352734-08 Solid Billy Payne 05/12/21 10:00 05/13/21 15:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG1672934 1 05/18/21 22:01 05/18/21 22:07 KDW Mt. Juliet, TN Volatile Organic Compounds (GC) by Method 8015C WG1671953 32.8 05/12/21 10:00 05/17/21 19:37 DWR Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260D WG1672299 1.4 05/12/21 10:00 05/18/21 02:28 JHH Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260D WG1674133 1.4 05/12/21 10:00 05/20/21 20:40 BMB Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015C WG1673614 1 05/19/21 23:25 05/20/21 16:10 CAG Mt. Juliet, TN Collected by Collected date/time Received date/time S-9 L1352734-09 Solid Billy Payne 05/12/21 10:10 05/13/21 15:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG1672934 1 05/18/21 22:01 05/18/21 22:07 KDW Mt. Juliet, TN Volatile Organic Compounds (GC) by Method 8015C WG1671953 36.5 05/12/21 10:10 05/17/21 20:01 DWR Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260D WG1672299 1.4 05/12/21 10:10 05/18/21 02:47 JHH Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260D WG1674133 1.4 05/12/21 10:10 05/20/21 21:01 BMB Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015C WG1673616 1 05/19/21 23:18 05/20/21 12:47 CAG Mt. Juliet, TN Collected by Collected date/time Received date/time S-10 L1352734-10 Solid Billy Payne 05/12/21 10:20 05/13/21 15:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG1672934 1 05/18/21 22:01 05/18/21 22:07 KDW Mt. Juliet, TN Volatile Organic Compounds (GC) by Method 8015C WG1671957 27 05/12/21 10:20 05/17/21 18:37 DWR Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260D WG1672299 1.24 05/12/21 10:20 05/18/21 03:06 JHH Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015C WG1673616 1 05/19/21 23:18 05/20/21 14:24 CAG Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 4 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 4 of 69 SAMPLE SUMMARY Collected by Collected date/time Received date/time S-11 L1352734-11 Solid Billy Payne 05/12/21 10:40 05/13/21 15:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG1672934 1 05/18/21 22:01 05/18/21 22:07 KDW Mt. Juliet, TN Volatile Organic Compounds (GC) by Method 8015C WG1671957 35 05/12/21 10:40 05/17/21 18:59 DWR Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260D WG1672299 1.43 05/12/21 10:40 05/18/21 03:25 JHH Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015C WG1673616 1 05/19/21 23:18 05/20/21 13:16 CAG Mt. Juliet, TN Collected by Collected date/time Received date/time S-12 L1352734-12 Solid Billy Payne 05/12/21 10:50 05/13/21 15:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG1672934 1 05/18/21 22:01 05/18/21 22:07 KDW Mt. Juliet, TN Volatile Organic Compounds (GC) by Method 8015C WG1671957 35.3 05/12/21 10:50 05/17/21 19:21 DWR Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260D WG1672299 1.41 05/12/21 10:50 05/18/21 03:44 JHH Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015C WG1673616 1 05/19/21 23:18 05/20/21 13:02 CAG Mt. Juliet, TN Collected by Collected date/time Received date/time S-13 L1352734-13 Solid Billy Payne 05/12/21 11:05 05/13/21 15:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG1672934 1 05/18/21 22:01 05/18/21 22:07 KDW Mt. Juliet, TN Volatile Organic Compounds (GC) by Method 8015C WG1671957 37 05/12/21 11:05 05/17/21 19:43 DWR Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260D WG1672299 1.48 05/12/21 11:05 05/18/21 04:03 JHH Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015C WG1673616 1 05/19/21 23:18 05/20/21 11:39 CAG Mt. Juliet, TN Collected by Collected date/time Received date/time S-14 L1352734-14 Solid Billy Payne 05/12/21 11:20 05/13/21 15:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG1672934 1 05/18/21 22:01 05/18/21 22:07 KDW Mt. Juliet, TN Volatile Organic Compounds (GC) by Method 8015C WG1671957 36.8 05/12/21 11:20 05/17/21 20:05 DWR Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260D WG1672299 1.51 05/12/21 11:20 05/18/21 04:22 JHH Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015C WG1673616 1 05/19/21 23:18 05/20/21 12:33 CAG Mt. Juliet, TN Collected by Collected date/time Received date/time S-15 L1352734-15 Solid Billy Payne 05/12/21 11:30 05/13/21 15:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG1672934 1 05/18/21 22:01 05/18/21 22:07 KDW Mt. Juliet, TN Volatile Organic Compounds (GC) by Method 8015C WG1671957 36.8 05/12/21 11:30 05/17/21 20:27 DWR Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260D WG1673298 1.3 05/12/21 11:30 05/20/21 09:13 TPR Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015C WG1673616 1 05/19/21 23:18 05/20/21 12:20 CAG Mt. Juliet, TN Collected by Collected date/time Received date/time S-16 L1352734-16 Solid Billy Payne 05/12/21 11:40 05/13/21 15:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG1672934 1 05/18/21 22:01 05/18/21 22:07 KDW Mt. Juliet, TN Volatile Organic Compounds (GC) by Method 8015C WG1671957 30.5 05/12/21 11:40 05/17/21 20:49 DWR Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260D WG1672940 1.57 05/12/21 11:40 05/19/21 04:02 ADM Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015C WG1673616 1 05/19/21 23:18 05/20/21 13:29 CAG Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 5 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 5 of 69 SAMPLE SUMMARY Collected by Collected date/time Received date/time S-17 L1352734-17 Solid Billy Payne 05/12/21 11:50 05/13/21 15:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG1672935 1 05/18/21 21:36 05/18/21 21:59 KDW Mt. Juliet, TN Volatile Organic Compounds (GC) by Method 8015C WG1671957 35.8 05/12/21 11:50 05/17/21 21:11 DWR Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260D WG1673298 1.45 05/12/21 11:50 05/20/21 09:32 TPR Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015C WG1673616 1 05/19/21 23:18 05/20/21 11:52 CAG Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 6 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 6 of 69 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Heather J Wagner Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 7 of 69 Heather J Wagner Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 7 of 69 SAMPLE RESULTS - 01 L1352734 S-1 Collected date/time: 05/12/21 08:45 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 74.9 1 05/18/2021 22:17 WG1672933 Volatile Organic Compounds (GC) by Method 8015C Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time TPH (GC/FID) Low Fraction 1370 J 1290 5960 38.3 05/17/2021 16:49 WG1671953 (S) a,a,a-Trifluorotoluene(FID)103 77.0-120 05/17/2021 16:49 WG1671953 Volatile Organic Compounds (GC/MS) by Method 8260D Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time Acetone U 92.3 126 1.64 05/18/2021 00:15 WG1672299 Acrylonitrile U 9.12 31.6 1.64 05/18/2021 00:15 WG1672299 Benzene U 1.18 2.53 1.64 05/18/2021 00:15 WG1672299 Bromobenzene U 2.28 31.6 1.64 05/18/2021 00:15 WG1672299 Bromodichloromethane U 1.83 6.32 1.64 05/18/2021 00:15 WG1672299 Bromoform U 2.96 63.2 1.64 05/18/2021 00:15 WG1672299 Bromomethane U 4.98 31.6 1.64 05/18/2021 00:15 WG1672299 n-Butylbenzene U 13.3 31.6 1.64 05/21/2021 01:31 WG1674625 sec-Butylbenzene U 7.27 31.6 1.64 05/18/2021 00:15 WG1672299 tert-Butylbenzene U 4.93 12.6 1.64 05/18/2021 00:15 WG1672299 Carbon tetrachloride U 2.26 12.6 1.64 05/18/2021 00:15 WG1672299 Chlorobenzene U 0.530 6.32 1.64 05/18/2021 00:15 WG1672299 Chlorodibromomethane U 1.54 6.32 1.64 05/18/2021 00:15 WG1672299 Chloroethane U 4.30 12.6 1.64 05/18/2021 00:15 WG1672299 Chloroform 8.84 2.60 6.32 1.64 05/18/2021 00:15 WG1672299 Chloromethane U 11.0 31.6 1.64 05/18/2021 00:15 WG1672299 2-Chlorotoluene U 2.19 6.32 1.64 05/18/2021 00:15 WG1672299 4-Chlorotoluene U 1.14 12.6 1.64 05/18/2021 00:15 WG1672299 1,2-Dibromo-3-Chloropropane U 9.86 63.2 1.64 05/18/2021 00:15 WG1672299 1,2-Dibromoethane U 1.63 6.32 1.64 05/18/2021 00:15 WG1672299 Dibromomethane U 1.89 12.6 1.64 05/18/2021 00:15 WG1672299 1,2-Dichlorobenzene U 1.07 12.6 1.64 05/18/2021 00:15 WG1672299 1,3-Dichlorobenzene U 1.52 12.6 1.64 05/18/2021 00:15 WG1672299 1,4-Dichlorobenzene U 1.77 12.6 1.64 05/18/2021 00:15 WG1672299 Dichlorodifluoromethane U 4.07 6.32 1.64 05/18/2021 00:15 WG1672299 1,1-Dichloroethane U 1.24 6.32 1.64 05/18/2021 00:15 WG1672299 1,2-Dichloroethane U 1.63 6.32 1.64 05/18/2021 00:15 WG1672299 1,1-Dichloroethene U 1.53 6.32 1.64 05/18/2021 00:15 WG1672299 cis-1,2-Dichloroethene U 1.85 6.32 1.64 05/18/2021 00:15 WG1672299 trans-1,2-Dichloroethene U 2.63 12.6 1.64 05/18/2021 00:15 WG1672299 1,2-Dichloropropane U 3.59 12.6 1.64 05/18/2021 00:15 WG1672299 1,1-Dichloropropene U 2.05 6.32 1.64 05/18/2021 00:15 WG1672299 1,3-Dichloropropane U 1.27 12.6 1.64 05/18/2021 00:15 WG1672299 cis-1,3-Dichloropropene U 1.91 6.32 1.64 05/18/2021 00:15 WG1672299 trans-1,3-Dichloropropene U 2.88 12.6 1.64 05/18/2021 00:15 WG1672299 2,2-Dichloropropane U 3.48 6.32 1.64 05/18/2021 00:15 WG1672299 Di-isopropyl ether U 1.04 2.53 1.64 05/18/2021 00:15 WG1672299 Ethylbenzene U 1.86 6.32 1.64 05/18/2021 00:15 WG1672299 Hexachloro-1,3-butadiene U 15.2 63.2 1.64 05/18/2021 00:15 WG1672299 Isopropylbenzene U 1.07 6.32 1.64 05/18/2021 00:15 WG1672299 p-Isopropyltoluene U 6.44 12.6 1.64 05/18/2021 00:15 WG1672299 2-Butanone (MEK)220 J 160 253 1.64 05/18/2021 00:15 WG1672299 Methylene Chloride U 16.8 63.2 1.64 05/18/2021 00:15 WG1672299 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 8 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 8 of 69 SAMPLE RESULTS - 01 L1352734 S-1 Collected date/time: 05/12/21 08:45 Volatile Organic Compounds (GC/MS) by Method 8260D Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time 4-Methyl-2-pentanone (MIBK)U 5.76 63.2 1.64 05/18/2021 00:15 WG1672299 Methyl tert-butyl ether U 0.884 2.53 1.64 05/18/2021 00:15 WG1672299 Naphthalene U 12.3 31.6 1.64 05/21/2021 01:31 WG1674625 n-Propylbenzene U 2.40 12.6 1.64 05/21/2021 01:31 WG1674625 Styrene U 0.579 31.6 1.64 05/18/2021 00:15 WG1672299 1,1,1,2-Tetrachloroethane U 2.39 6.32 1.64 05/18/2021 00:15 WG1672299 1,1,2,2-Tetrachloroethane U C3 1.76 6.32 1.64 05/18/2021 00:15 WG1672299 Tetrachloroethene U 2.26 6.32 1.64 05/18/2021 00:15 WG1672299 Toluene U 3.28 12.6 1.64 05/18/2021 00:15 WG1672299 1,2,3-Trichlorobenzene U C3 18.5 31.6 1.64 05/18/2021 00:15 WG1672299 1,2,4-Trichlorobenzene U C3 11.1 31.6 1.64 05/18/2021 00:15 WG1672299 1,1,1-Trichloroethane U 2.33 6.32 1.64 05/18/2021 00:15 WG1672299 1,1,2-Trichloroethane U 1.51 6.32 1.64 05/18/2021 00:15 WG1672299 Trichloroethene U 1.48 2.53 1.64 05/18/2021 00:15 WG1672299 Trichlorofluoromethane U 2.10 6.32 1.64 05/18/2021 00:15 WG1672299 1,2,3-Trichloropropane U 4.10 31.6 1.64 05/18/2021 00:15 WG1672299 1,2,4-Trimethylbenzene U 3.99 12.6 1.64 05/21/2021 01:31 WG1674625 1,3,5-Trimethylbenzene U 5.05 12.6 1.64 05/21/2021 01:31 WG1674625 Vinyl chloride U 2.93 6.32 1.64 05/18/2021 00:15 WG1672299 Xylenes, Total U 2.22 16.5 1.64 05/21/2021 01:31 WG1674625 (S) Toluene-d8 113 75.0-131 05/18/2021 00:15 WG1672299 (S) Toluene-d8 104 75.0-131 05/21/2021 01:31 WG1674625 (S) 4-Bromofluorobenzene 95.4 67.0-138 05/18/2021 00:15 WG1672299 (S) 4-Bromofluorobenzene 101 67.0-138 05/21/2021 01:31 WG1674625 (S) 1,2-Dichloroethane-d4 98.3 70.0-130 05/18/2021 00:15 WG1672299 (S) 1,2-Dichloroethane-d4 103 70.0-130 05/21/2021 01:31 WG1674625 Semi-Volatile Organic Compounds (GC) by Method 8015C Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time TPH (GC/FID) High Fraction 1900 J 1030 5340 1 05/20/2021 16:23 WG1673614 (S) o-Terphenyl 64.8 18.0-148 05/20/2021 16:23 WG1673614 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 9 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 9 of 69 SAMPLE RESULTS - 02 L1352734 S-2 Collected date/time: 05/12/21 08:55 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 73.6 1 05/18/2021 22:17 WG1672933 Volatile Organic Compounds (GC) by Method 8015C Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time TPH (GC/FID) Low Fraction 2170 J 1250 5760 35.8 05/17/2021 17:13 WG1671953 (S) a,a,a-Trifluorotoluene(FID)101 77.0-120 05/17/2021 17:13 WG1671953 Volatile Organic Compounds (GC/MS) by Method 8260D Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time Acetone U 82.0 112 1.39 05/18/2021 00:34 WG1672299 Acrylonitrile U 8.12 28.1 1.39 05/18/2021 00:34 WG1672299 Benzene U 1.05 2.25 1.39 05/18/2021 00:34 WG1672299 Bromobenzene U 2.02 28.1 1.39 05/18/2021 00:34 WG1672299 Bromodichloromethane U 1.63 5.63 1.39 05/18/2021 00:34 WG1672299 Bromoform U 2.64 56.3 1.39 05/18/2021 00:34 WG1672299 Bromomethane U 4.43 28.1 1.39 05/18/2021 00:34 WG1672299 n-Butylbenzene U 11.8 28.1 1.39 05/20/2021 15:28 WG1674133 sec-Butylbenzene U 6.47 28.1 1.39 05/18/2021 00:34 WG1672299 tert-Butylbenzene U 4.38 11.2 1.39 05/18/2021 00:34 WG1672299 Carbon tetrachloride U 2.02 11.2 1.39 05/18/2021 00:34 WG1672299 Chlorobenzene U 0.472 5.63 1.39 05/18/2021 00:34 WG1672299 Chlorodibromomethane U 1.38 5.63 1.39 05/18/2021 00:34 WG1672299 Chloroethane U 3.82 11.2 1.39 05/18/2021 00:34 WG1672299 Chloroform U 2.31 5.63 1.39 05/18/2021 00:34 WG1672299 Chloromethane U 9.78 28.1 1.39 05/18/2021 00:34 WG1672299 2-Chlorotoluene U 1.94 5.63 1.39 05/18/2021 00:34 WG1672299 4-Chlorotoluene U 1.01 11.2 1.39 05/18/2021 00:34 WG1672299 1,2-Dibromo-3-Chloropropane U 8.76 56.3 1.39 05/18/2021 00:34 WG1672299 1,2-Dibromoethane U 1.46 5.63 1.39 05/18/2021 00:34 WG1672299 Dibromomethane U 1.68 11.2 1.39 05/18/2021 00:34 WG1672299 1,2-Dichlorobenzene U 0.955 11.2 1.39 05/18/2021 00:34 WG1672299 1,3-Dichlorobenzene U 1.35 11.2 1.39 05/18/2021 00:34 WG1672299 1,4-Dichlorobenzene U 1.57 11.2 1.39 05/18/2021 00:34 WG1672299 Dichlorodifluoromethane U 3.62 5.63 1.39 05/18/2021 00:34 WG1672299 1,1-Dichloroethane U 1.10 5.63 1.39 05/18/2021 00:34 WG1672299 1,2-Dichloroethane U 1.46 5.63 1.39 05/18/2021 00:34 WG1672299 1,1-Dichloroethene U 1.36 5.63 1.39 05/18/2021 00:34 WG1672299 cis-1,2-Dichloroethene U 1.65 5.63 1.39 05/18/2021 00:34 WG1672299 trans-1,2-Dichloroethene U 2.34 11.2 1.39 05/18/2021 00:34 WG1672299 1,2-Dichloropropane U 3.18 11.2 1.39 05/18/2021 00:34 WG1672299 1,1-Dichloropropene U 1.81 5.63 1.39 05/18/2021 00:34 WG1672299 1,3-Dichloropropane U 1.13 11.2 1.39 05/18/2021 00:34 WG1672299 cis-1,3-Dichloropropene U 1.70 5.63 1.39 05/18/2021 00:34 WG1672299 trans-1,3-Dichloropropene U 2.55 11.2 1.39 05/18/2021 00:34 WG1672299 2,2-Dichloropropane U 3.10 5.63 1.39 05/18/2021 00:34 WG1672299 Di-isopropyl ether U 0.922 2.25 1.39 05/18/2021 00:34 WG1672299 Ethylbenzene U 1.65 5.63 1.39 05/18/2021 00:34 WG1672299 Hexachloro-1,3-butadiene U 13.5 56.3 1.39 05/18/2021 00:34 WG1672299 Isopropylbenzene U 0.955 5.63 1.39 05/18/2021 00:34 WG1672299 p-Isopropyltoluene U 5.72 11.2 1.39 05/18/2021 00:34 WG1672299 2-Butanone (MEK)U 143 225 1.39 05/18/2021 00:34 WG1672299 Methylene Chloride U 14.9 56.3 1.39 05/18/2021 00:34 WG1672299 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 10 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 10 of 69 SAMPLE RESULTS - 02 L1352734 S-2 Collected date/time: 05/12/21 08:55 Volatile Organic Compounds (GC/MS) by Method 8260D Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time 4-Methyl-2-pentanone (MIBK)U 5.13 56.3 1.39 05/18/2021 00:34 WG1672299 Methyl tert-butyl ether U 0.787 2.25 1.39 05/18/2021 00:34 WG1672299 Naphthalene U 11.0 28.1 1.39 05/20/2021 15:28 WG1674133 n-Propylbenzene U 2.13 11.2 1.39 05/18/2021 00:34 WG1672299 Styrene U 0.514 28.1 1.39 05/18/2021 00:34 WG1672299 1,1,1,2-Tetrachloroethane U 2.13 5.63 1.39 05/18/2021 00:34 WG1672299 1,1,2,2-Tetrachloroethane U C3 1.56 5.63 1.39 05/18/2021 00:34 WG1672299 Tetrachloroethene U 2.02 5.63 1.39 05/18/2021 00:34 WG1672299 Toluene U 2.93 11.2 1.39 05/18/2021 00:34 WG1672299 1,2,3-Trichlorobenzene U C3 16.5 28.1 1.39 05/18/2021 00:34 WG1672299 1,2,4-Trichlorobenzene U C3 9.89 28.1 1.39 05/18/2021 00:34 WG1672299 1,1,1-Trichloroethane U 2.07 5.63 1.39 05/18/2021 00:34 WG1672299 1,1,2-Trichloroethane U 1.34 5.63 1.39 05/18/2021 00:34 WG1672299 Trichloroethene U 1.31 2.25 1.39 05/18/2021 00:34 WG1672299 Trichlorofluoromethane U 1.86 5.63 1.39 05/18/2021 00:34 WG1672299 1,2,3-Trichloropropane U 3.64 28.1 1.39 05/18/2021 00:34 WG1672299 1,2,4-Trimethylbenzene U 3.56 11.2 1.39 05/20/2021 15:28 WG1674133 1,3,5-Trimethylbenzene U 4.49 11.2 1.39 05/18/2021 00:34 WG1672299 Vinyl chloride U 2.60 5.63 1.39 05/18/2021 00:34 WG1672299 Xylenes, Total 5.16 J 1.97 14.6 1.39 05/20/2021 15:28 WG1674133 (S) Toluene-d8 110 75.0-131 05/18/2021 00:34 WG1672299 (S) Toluene-d8 115 75.0-131 05/20/2021 15:28 WG1674133 (S) 4-Bromofluorobenzene 96.3 67.0-138 05/18/2021 00:34 WG1672299 (S) 4-Bromofluorobenzene 87.5 67.0-138 05/20/2021 15:28 WG1674133 (S) 1,2-Dichloroethane-d4 106 70.0-130 05/18/2021 00:34 WG1672299 (S) 1,2-Dichloroethane-d4 98.0 70.0-130 05/20/2021 15:28 WG1674133 Semi-Volatile Organic Compounds (GC) by Method 8015C Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time TPH (GC/FID) High Fraction 8560 1040 5440 1 05/20/2021 15:17 WG1673614 (S) o-Terphenyl 65.4 18.0-148 05/20/2021 15:17 WG1673614 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 11 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 11 of 69 SAMPLE RESULTS - 03 L1352734 S-3 Collected date/time: 05/12/21 09:05 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 75.1 1 05/18/2021 22:17 WG1672933 Volatile Organic Compounds (GC) by Method 8015C Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time TPH (GC/FID) Low Fraction 2060 J 1180 5420 34.5 05/17/2021 17:37 WG1671953 (S) a,a,a-Trifluorotoluene(FID)103 77.0-120 05/17/2021 17:37 WG1671953 Volatile Organic Compounds (GC/MS) by Method 8260D Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time Acetone U 77.8 106 1.35 05/18/2021 00:53 WG1672299 Acrylonitrile U 7.68 26.7 1.35 05/18/2021 00:53 WG1672299 Benzene U 0.994 2.13 1.35 05/18/2021 00:53 WG1672299 Bromobenzene U 1.92 26.7 1.35 05/18/2021 00:53 WG1672299 Bromodichloromethane U 1.54 5.33 1.35 05/18/2021 00:53 WG1672299 Bromoform U 2.49 53.3 1.35 05/18/2021 00:53 WG1672299 Bromomethane U 4.20 26.7 1.35 05/18/2021 00:53 WG1672299 n-Butylbenzene U 11.2 26.7 1.35 05/18/2021 00:53 WG1672299 sec-Butylbenzene U 6.14 26.7 1.35 05/18/2021 00:53 WG1672299 tert-Butylbenzene U 4.15 10.6 1.35 05/18/2021 00:53 WG1672299 Carbon tetrachloride U 1.91 10.6 1.35 05/18/2021 00:53 WG1672299 Chlorobenzene U 0.448 5.33 1.35 05/18/2021 00:53 WG1672299 Chlorodibromomethane U 1.30 5.33 1.35 05/18/2021 00:53 WG1672299 Chloroethane U 3.63 10.6 1.35 05/18/2021 00:53 WG1672299 Chloroform U 2.19 5.33 1.35 05/18/2021 00:53 WG1672299 Chloromethane U 9.26 26.7 1.35 05/18/2021 00:53 WG1672299 2-Chlorotoluene U 1.85 5.33 1.35 05/18/2021 00:53 WG1672299 4-Chlorotoluene U 0.959 10.6 1.35 05/18/2021 00:53 WG1672299 1,2-Dibromo-3-Chloropropane U 8.31 53.3 1.35 05/18/2021 00:53 WG1672299 1,2-Dibromoethane U 1.38 5.33 1.35 05/18/2021 00:53 WG1672299 Dibromomethane U 1.59 10.6 1.35 05/18/2021 00:53 WG1672299 1,2-Dichlorobenzene U 0.905 10.6 1.35 05/18/2021 00:53 WG1672299 1,3-Dichlorobenzene U 1.28 10.6 1.35 05/18/2021 00:53 WG1672299 1,4-Dichlorobenzene U 1.49 10.6 1.35 05/18/2021 00:53 WG1672299 Dichlorodifluoromethane U 3.42 5.33 1.35 05/18/2021 00:53 WG1672299 1,1-Dichloroethane U 1.05 5.33 1.35 05/18/2021 00:53 WG1672299 1,2-Dichloroethane U 1.38 5.33 1.35 05/18/2021 00:53 WG1672299 1,1-Dichloroethene U 1.29 5.33 1.35 05/18/2021 00:53 WG1672299 cis-1,2-Dichloroethene U 1.56 5.33 1.35 05/18/2021 00:53 WG1672299 trans-1,2-Dichloroethene U 2.21 10.6 1.35 05/18/2021 00:53 WG1672299 1,2-Dichloropropane U 3.03 10.6 1.35 05/18/2021 00:53 WG1672299 1,1-Dichloropropene U 1.72 5.33 1.35 05/18/2021 00:53 WG1672299 1,3-Dichloropropane U 1.07 10.6 1.35 05/18/2021 00:53 WG1672299 cis-1,3-Dichloropropene U 1.61 5.33 1.35 05/18/2021 00:53 WG1672299 trans-1,3-Dichloropropene U 2.43 10.6 1.35 05/18/2021 00:53 WG1672299 2,2-Dichloropropane U 2.93 5.33 1.35 05/18/2021 00:53 WG1672299 Di-isopropyl ether U 0.874 2.13 1.35 05/18/2021 00:53 WG1672299 Ethylbenzene U 1.57 5.33 1.35 05/18/2021 00:53 WG1672299 Hexachloro-1,3-butadiene U 12.8 53.3 1.35 05/18/2021 00:53 WG1672299 Isopropylbenzene U 0.905 5.33 1.35 05/18/2021 00:53 WG1672299 p-Isopropyltoluene U 5.43 10.6 1.35 05/18/2021 00:53 WG1672299 2-Butanone (MEK)U 135 213 1.35 05/18/2021 00:53 WG1672299 Methylene Chloride U 14.1 53.3 1.35 05/18/2021 00:53 WG1672299 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 12 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 12 of 69 SAMPLE RESULTS - 03 L1352734 S-3 Collected date/time: 05/12/21 09:05 Volatile Organic Compounds (GC/MS) by Method 8260D Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time 4-Methyl-2-pentanone (MIBK)U 4.86 53.3 1.35 05/18/2021 00:53 WG1672299 Methyl tert-butyl ether U 0.746 2.13 1.35 05/18/2021 00:53 WG1672299 Naphthalene 33.8 10.4 26.7 1.35 05/20/2021 18:56 WG1674133 n-Propylbenzene U 2.02 10.6 1.35 05/18/2021 00:53 WG1672299 Styrene U 0.487 26.7 1.35 05/18/2021 00:53 WG1672299 1,1,1,2-Tetrachloroethane U 2.02 5.33 1.35 05/18/2021 00:53 WG1672299 1,1,2,2-Tetrachloroethane U C3 1.48 5.33 1.35 05/18/2021 00:53 WG1672299 Tetrachloroethene U 1.91 5.33 1.35 05/18/2021 00:53 WG1672299 Toluene U 2.78 10.6 1.35 05/18/2021 00:53 WG1672299 1,2,3-Trichlorobenzene U C3 15.6 26.7 1.35 05/18/2021 00:53 WG1672299 1,2,4-Trichlorobenzene U C3 9.37 26.7 1.35 05/18/2021 00:53 WG1672299 1,1,1-Trichloroethane U 1.97 5.33 1.35 05/18/2021 00:53 WG1672299 1,1,2-Trichloroethane U 1.27 5.33 1.35 05/18/2021 00:53 WG1672299 Trichloroethene U 1.24 2.13 1.35 05/18/2021 00:53 WG1672299 Trichlorofluoromethane U 1.77 5.33 1.35 05/18/2021 00:53 WG1672299 1,2,3-Trichloropropane U 3.45 26.7 1.35 05/18/2021 00:53 WG1672299 1,2,4-Trimethylbenzene 22.9 3.36 10.6 1.35 05/20/2021 18:56 WG1674133 1,3,5-Trimethylbenzene U 4.26 10.6 1.35 05/18/2021 00:53 WG1672299 Vinyl chloride U 2.48 5.33 1.35 05/18/2021 00:53 WG1672299 Xylenes, Total U 1.88 13.8 1.35 05/18/2021 00:53 WG1672299 (S) Toluene-d8 113 75.0-131 05/18/2021 00:53 WG1672299 (S) Toluene-d8 114 75.0-131 05/20/2021 18:56 WG1674133 (S) 4-Bromofluorobenzene 91.4 67.0-138 05/18/2021 00:53 WG1672299 (S) 4-Bromofluorobenzene 88.8 67.0-138 05/20/2021 18:56 WG1674133 (S) 1,2-Dichloroethane-d4 101 70.0-130 05/18/2021 00:53 WG1672299 (S) 1,2-Dichloroethane-d4 88.3 70.0-130 05/20/2021 18:56 WG1674133 Semi-Volatile Organic Compounds (GC) by Method 8015C Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time TPH (GC/FID) High Fraction U 1020 5320 1 05/20/2021 15:30 WG1673614 (S) o-Terphenyl 67.3 18.0-148 05/20/2021 15:30 WG1673614 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 13 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 13 of 69 SAMPLE RESULTS - 04 L1352734 S-4 Collected date/time: 05/12/21 09:15 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 71.0 1 05/18/2021 22:17 WG1672933 Volatile Organic Compounds (GC) by Method 8015C Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time TPH (GC/FID) Low Fraction 2170 J 1320 6090 36 05/17/2021 18:01 WG1671953 (S) a,a,a-Trifluorotoluene(FID)103 77.0-120 05/17/2021 18:01 WG1671953 Volatile Organic Compounds (GC/MS) by Method 8260D Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time Acetone U 89.4 122 1.45 05/18/2021 01:12 WG1672299 Acrylonitrile U 8.83 30.6 1.45 05/18/2021 01:12 WG1672299 Benzene U 1.14 2.45 1.45 05/18/2021 01:12 WG1672299 Bromobenzene U 2.21 30.6 1.45 05/18/2021 01:12 WG1672299 Bromodichloromethane U 1.77 6.13 1.45 05/18/2021 01:12 WG1672299 Bromoform U 2.87 61.3 1.45 05/18/2021 01:12 WG1672299 Bromomethane U 4.83 30.6 1.45 05/18/2021 01:12 WG1672299 n-Butylbenzene U 12.9 30.6 1.45 05/18/2021 01:12 WG1672299 sec-Butylbenzene U 7.06 30.6 1.45 05/18/2021 01:12 WG1672299 tert-Butylbenzene U 4.78 12.2 1.45 05/18/2021 01:12 WG1672299 Carbon tetrachloride U 2.20 12.2 1.45 05/18/2021 01:12 WG1672299 Chlorobenzene U 0.515 6.13 1.45 05/18/2021 01:12 WG1672299 Chlorodibromomethane U 1.50 6.13 1.45 05/18/2021 01:12 WG1672299 Chloroethane U 4.17 12.2 1.45 05/18/2021 01:12 WG1672299 Chloroform 3.36 J 2.52 6.13 1.45 05/18/2021 01:12 WG1672299 Chloromethane U 10.7 30.6 1.45 05/18/2021 01:12 WG1672299 2-Chlorotoluene U 2.11 6.13 1.45 05/18/2021 01:12 WG1672299 4-Chlorotoluene U 1.10 12.2 1.45 05/18/2021 01:12 WG1672299 1,2-Dibromo-3-Chloropropane U 9.56 61.3 1.45 05/18/2021 01:12 WG1672299 1,2-Dibromoethane U 1.59 6.13 1.45 05/18/2021 01:12 WG1672299 Dibromomethane U 1.84 12.2 1.45 05/18/2021 01:12 WG1672299 1,2-Dichlorobenzene U 1.04 12.2 1.45 05/18/2021 01:12 WG1672299 1,3-Dichlorobenzene U 1.47 12.2 1.45 05/18/2021 01:12 WG1672299 1,4-Dichlorobenzene U 1.72 12.2 1.45 05/18/2021 01:12 WG1672299 Dichlorodifluoromethane U 3.94 6.13 1.45 05/18/2021 01:12 WG1672299 1,1-Dichloroethane U 1.20 6.13 1.45 05/18/2021 01:12 WG1672299 1,2-Dichloroethane U 1.59 6.13 1.45 05/18/2021 01:12 WG1672299 1,1-Dichloroethene U 1.48 6.13 1.45 05/18/2021 01:12 WG1672299 cis-1,2-Dichloroethene U 1.79 6.13 1.45 05/18/2021 01:12 WG1672299 trans-1,2-Dichloroethene U 2.55 12.2 1.45 05/18/2021 01:12 WG1672299 1,2-Dichloropropane U 3.48 12.2 1.45 05/18/2021 01:12 WG1672299 1,1-Dichloropropene U 1.98 6.13 1.45 05/18/2021 01:12 WG1672299 1,3-Dichloropropane U 1.23 12.2 1.45 05/18/2021 01:12 WG1672299 cis-1,3-Dichloropropene U 1.86 6.13 1.45 05/18/2021 01:12 WG1672299 trans-1,3-Dichloropropene U 2.79 12.2 1.45 05/18/2021 01:12 WG1672299 2,2-Dichloropropane U 3.38 6.13 1.45 05/18/2021 01:12 WG1672299 Di-isopropyl ether U 1.00 2.45 1.45 05/18/2021 01:12 WG1672299 Ethylbenzene U 1.81 6.13 1.45 05/18/2021 01:12 WG1672299 Hexachloro-1,3-butadiene U 14.7 61.3 1.45 05/18/2021 01:12 WG1672299 Isopropylbenzene U 1.04 6.13 1.45 05/18/2021 01:12 WG1672299 p-Isopropyltoluene U 6.25 12.2 1.45 05/18/2021 01:12 WG1672299 2-Butanone (MEK)257 C5 156 245 1.45 05/18/2021 01:12 WG1672299 Methylene Chloride U 16.3 61.3 1.45 05/18/2021 01:12 WG1672299 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 14 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 14 of 69 SAMPLE RESULTS - 04 L1352734 S-4 Collected date/time: 05/12/21 09:15 Volatile Organic Compounds (GC/MS) by Method 8260D Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time 4-Methyl-2-pentanone (MIBK)U 5.59 61.3 1.45 05/18/2021 01:12 WG1672299 Methyl tert-butyl ether U 0.858 2.45 1.45 05/18/2021 01:12 WG1672299 Naphthalene U 12.0 30.6 1.45 05/20/2021 19:17 WG1674133 n-Propylbenzene U 2.33 12.2 1.45 05/18/2021 01:12 WG1672299 Styrene U 0.561 30.6 1.45 05/18/2021 01:12 WG1672299 1,1,1,2-Tetrachloroethane U 2.31 6.13 1.45 05/18/2021 01:12 WG1672299 1,1,2,2-Tetrachloroethane U C3 1.71 6.13 1.45 05/18/2021 01:12 WG1672299 Tetrachloroethene U 2.20 6.13 1.45 05/18/2021 01:12 WG1672299 Toluene U 3.19 12.2 1.45 05/18/2021 01:12 WG1672299 1,2,3-Trichlorobenzene U C3 17.9 30.6 1.45 05/18/2021 01:12 WG1672299 1,2,4-Trichlorobenzene U C3 10.8 30.6 1.45 05/18/2021 01:12 WG1672299 1,1,1-Trichloroethane U 2.26 6.13 1.45 05/18/2021 01:12 WG1672299 1,1,2-Trichloroethane U 1.46 6.13 1.45 05/18/2021 01:12 WG1672299 Trichloroethene U 1.43 2.45 1.45 05/18/2021 01:12 WG1672299 Trichlorofluoromethane U 2.03 6.13 1.45 05/18/2021 01:12 WG1672299 1,2,3-Trichloropropane U 3.97 30.6 1.45 05/18/2021 01:12 WG1672299 1,2,4-Trimethylbenzene 13.5 3.87 12.2 1.45 05/18/2021 01:12 WG1672299 1,3,5-Trimethylbenzene U 4.90 12.2 1.45 05/18/2021 01:12 WG1672299 Vinyl chloride U 2.84 6.13 1.45 05/18/2021 01:12 WG1672299 Xylenes, Total 9.54 J 2.16 15.9 1.45 05/18/2021 01:12 WG1672299 (S) Toluene-d8 110 75.0-131 05/18/2021 01:12 WG1672299 (S) Toluene-d8 115 75.0-131 05/20/2021 19:17 WG1674133 (S) 4-Bromofluorobenzene 95.7 67.0-138 05/18/2021 01:12 WG1672299 (S) 4-Bromofluorobenzene 90.9 67.0-138 05/20/2021 19:17 WG1674133 (S) 1,2-Dichloroethane-d4 102 70.0-130 05/18/2021 01:12 WG1672299 (S) 1,2-Dichloroethane-d4 96.7 70.0-130 05/20/2021 19:17 WG1674133 Semi-Volatile Organic Compounds (GC) by Method 8015C Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time TPH (GC/FID) High Fraction 1410 J 1080 5630 1 05/20/2021 15:43 WG1673614 (S) o-Terphenyl 66.4 18.0-148 05/20/2021 15:43 WG1673614 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 15 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 15 of 69 SAMPLE RESULTS - 05 L1352734 S-5 Collected date/time: 05/12/21 09:25 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 71.6 1 05/18/2021 22:17 WG1672933 Volatile Organic Compounds (GC) by Method 8015C Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time TPH (GC/FID) Low Fraction U 1400 6440 39 05/17/2021 18:25 WG1671953 (S) a,a,a-Trifluorotoluene(FID)104 77.0-120 05/17/2021 18:25 WG1671953 Volatile Organic Compounds (GC/MS) by Method 8260D Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time Acetone U 78.3 107 1.25 05/18/2021 01:31 WG1672299 Acrylonitrile U 7.74 26.8 1.25 05/18/2021 01:31 WG1672299 Benzene U 1.00 2.15 1.25 05/18/2021 01:31 WG1672299 Bromobenzene U 1.94 26.8 1.25 05/18/2021 01:31 WG1672299 Bromodichloromethane U 1.55 5.37 1.25 05/18/2021 01:31 WG1672299 Bromoform U 2.51 53.7 1.25 05/18/2021 01:31 WG1672299 Bromomethane U 4.22 26.8 1.25 05/18/2021 01:31 WG1672299 n-Butylbenzene U 11.3 26.8 1.25 05/18/2021 01:31 WG1672299 sec-Butylbenzene U 6.18 26.8 1.25 05/18/2021 01:31 WG1672299 tert-Butylbenzene U 4.19 10.7 1.25 05/18/2021 01:31 WG1672299 Carbon tetrachloride U 1.92 10.7 1.25 05/18/2021 01:31 WG1672299 Chlorobenzene U 0.451 5.37 1.25 05/18/2021 01:31 WG1672299 Chlorodibromomethane U 1.31 5.37 1.25 05/18/2021 01:31 WG1672299 Chloroethane U 3.64 10.7 1.25 05/18/2021 01:31 WG1672299 Chloroform U 2.21 5.37 1.25 05/18/2021 01:31 WG1672299 Chloromethane U 9.34 26.8 1.25 05/18/2021 01:31 WG1672299 2-Chlorotoluene U 1.85 5.37 1.25 05/18/2021 01:31 WG1672299 4-Chlorotoluene U 0.966 10.7 1.25 05/18/2021 01:31 WG1672299 1,2-Dibromo-3-Chloropropane U 8.38 53.7 1.25 05/18/2021 01:31 WG1672299 1,2-Dibromoethane U 1.39 5.37 1.25 05/18/2021 01:31 WG1672299 Dibromomethane U 1.61 10.7 1.25 05/18/2021 01:31 WG1672299 1,2-Dichlorobenzene U 0.911 10.7 1.25 05/18/2021 01:31 WG1672299 1,3-Dichlorobenzene U 1.29 10.7 1.25 05/18/2021 01:31 WG1672299 1,4-Dichlorobenzene U 1.50 10.7 1.25 05/18/2021 01:31 WG1672299 Dichlorodifluoromethane U 3.45 5.37 1.25 05/18/2021 01:31 WG1672299 1,1-Dichloroethane U 1.05 5.37 1.25 05/18/2021 01:31 WG1672299 1,2-Dichloroethane U 1.39 5.37 1.25 05/18/2021 01:31 WG1672299 1,1-Dichloroethene U 1.30 5.37 1.25 05/18/2021 01:31 WG1672299 cis-1,2-Dichloroethene U 1.58 5.37 1.25 05/18/2021 01:31 WG1672299 trans-1,2-Dichloroethene U 2.23 10.7 1.25 05/18/2021 01:31 WG1672299 1,2-Dichloropropane U 3.05 10.7 1.25 05/18/2021 01:31 WG1672299 1,1-Dichloropropene U 1.73 5.37 1.25 05/18/2021 01:31 WG1672299 1,3-Dichloropropane U 1.07 10.7 1.25 05/18/2021 01:31 WG1672299 cis-1,3-Dichloropropene U 1.62 5.37 1.25 05/18/2021 01:31 WG1672299 trans-1,3-Dichloropropene U 2.45 10.7 1.25 05/18/2021 01:31 WG1672299 2,2-Dichloropropane U 2.97 5.37 1.25 05/18/2021 01:31 WG1672299 Di-isopropyl ether U 0.880 2.15 1.25 05/18/2021 01:31 WG1672299 Ethylbenzene U 1.58 5.37 1.25 05/18/2021 01:31 WG1672299 Hexachloro-1,3-butadiene U 12.9 53.7 1.25 05/18/2021 01:31 WG1672299 Isopropylbenzene U 0.911 5.37 1.25 05/18/2021 01:31 WG1672299 p-Isopropyltoluene U 5.47 10.7 1.25 05/18/2021 01:31 WG1672299 2-Butanone (MEK)U 136 215 1.25 05/18/2021 01:31 WG1672299 Methylene Chloride U 14.2 53.7 1.25 05/18/2021 01:31 WG1672299 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 16 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 16 of 69 SAMPLE RESULTS - 05 L1352734 S-5 Collected date/time: 05/12/21 09:25 Volatile Organic Compounds (GC/MS) by Method 8260D Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time 4-Methyl-2-pentanone (MIBK)U 4.89 53.7 1.25 05/18/2021 01:31 WG1672299 Methyl tert-butyl ether U 0.752 2.15 1.25 05/18/2021 01:31 WG1672299 Naphthalene U 10.5 26.8 1.25 05/20/2021 19:38 WG1674133 n-Propylbenzene U 2.04 10.7 1.25 05/18/2021 01:31 WG1672299 Styrene U 0.491 26.8 1.25 05/18/2021 01:31 WG1672299 1,1,1,2-Tetrachloroethane U 2.04 5.37 1.25 05/18/2021 01:31 WG1672299 1,1,2,2-Tetrachloroethane U C3 1.49 5.37 1.25 05/18/2021 01:31 WG1672299 Tetrachloroethene U 1.92 5.37 1.25 05/18/2021 01:31 WG1672299 Toluene U 2.80 10.7 1.25 05/18/2021 01:31 WG1672299 1,2,3-Trichlorobenzene U C3 15.7 26.8 1.25 05/18/2021 01:31 WG1672299 1,2,4-Trichlorobenzene U C3 9.44 26.8 1.25 05/18/2021 01:31 WG1672299 1,1,1-Trichloroethane U 1.97 5.37 1.25 05/18/2021 01:31 WG1672299 1,1,2-Trichloroethane U 1.28 5.37 1.25 05/18/2021 01:31 WG1672299 Trichloroethene U 1.25 2.15 1.25 05/18/2021 01:31 WG1672299 Trichlorofluoromethane U 1.77 5.37 1.25 05/18/2021 01:31 WG1672299 1,2,3-Trichloropropane U 3.47 26.8 1.25 05/18/2021 01:31 WG1672299 1,2,4-Trimethylbenzene U 3.40 10.7 1.25 05/18/2021 01:31 WG1672299 1,3,5-Trimethylbenzene U 4.29 10.7 1.25 05/18/2021 01:31 WG1672299 Vinyl chloride U 2.49 5.37 1.25 05/18/2021 01:31 WG1672299 Xylenes, Total U 1.89 14.0 1.25 05/18/2021 01:31 WG1672299 (S) Toluene-d8 112 75.0-131 05/18/2021 01:31 WG1672299 (S) Toluene-d8 117 75.0-131 05/20/2021 19:38 WG1674133 (S) 4-Bromofluorobenzene 98.6 67.0-138 05/18/2021 01:31 WG1672299 (S) 4-Bromofluorobenzene 92.5 67.0-138 05/20/2021 19:38 WG1674133 (S) 1,2-Dichloroethane-d4 103 70.0-130 05/18/2021 01:31 WG1672299 (S) 1,2-Dichloroethane-d4 97.9 70.0-130 05/20/2021 19:38 WG1674133 Semi-Volatile Organic Compounds (GC) by Method 8015C Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time TPH (GC/FID) High Fraction U 1070 5590 1 05/20/2021 15:56 WG1673614 (S) o-Terphenyl 64.5 18.0-148 05/20/2021 15:56 WG1673614 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 17 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 17 of 69 SAMPLE RESULTS - 06 L1352734 S-6 Collected date/time: 05/12/21 09:40 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 83.7 1 05/18/2021 22:17 WG1672933 Volatile Organic Compounds (GC) by Method 8015C Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time TPH (GC/FID) Low Fraction 1660 J 960 4420 33 05/17/2021 18:49 WG1671953 (S) a,a,a-Trifluorotoluene(FID)103 77.0-120 05/17/2021 18:49 WG1671953 Volatile Organic Compounds (GC/MS) by Method 8260D Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time Acetone U 61.6 84.4 1.25 05/18/2021 01:50 WG1672299 Acrylonitrile U 6.09 21.1 1.25 05/18/2021 01:50 WG1672299 Benzene U 0.788 1.69 1.25 05/18/2021 01:50 WG1672299 Bromobenzene U 1.53 21.1 1.25 05/18/2021 01:50 WG1672299 Bromodichloromethane U 1.22 4.23 1.25 05/18/2021 01:50 WG1672299 Bromoform U 1.97 42.3 1.25 05/18/2021 01:50 WG1672299 Bromomethane U 3.32 21.1 1.25 05/18/2021 01:50 WG1672299 n-Butylbenzene U 8.86 21.1 1.25 05/18/2021 01:50 WG1672299 sec-Butylbenzene U 4.86 21.1 1.25 05/18/2021 01:50 WG1672299 tert-Butylbenzene U 3.29 8.44 1.25 05/18/2021 01:50 WG1672299 Carbon tetrachloride U 1.51 8.44 1.25 05/18/2021 01:50 WG1672299 Chlorobenzene U 0.355 4.23 1.25 05/18/2021 01:50 WG1672299 Chlorodibromomethane U 1.03 4.23 1.25 05/18/2021 01:50 WG1672299 Chloroethane U 2.86 8.44 1.25 05/18/2021 01:50 WG1672299 Chloroform 5.95 1.74 4.23 1.25 05/18/2021 01:50 WG1672299 Chloromethane U 7.34 21.1 1.25 05/18/2021 01:50 WG1672299 2-Chlorotoluene U 1.46 4.23 1.25 05/18/2021 01:50 WG1672299 4-Chlorotoluene U 0.760 8.44 1.25 05/18/2021 01:50 WG1672299 1,2-Dibromo-3-Chloropropane U 6.59 42.3 1.25 05/18/2021 01:50 WG1672299 1,2-Dibromoethane U 1.09 4.23 1.25 05/18/2021 01:50 WG1672299 Dibromomethane U 1.27 8.44 1.25 05/18/2021 01:50 WG1672299 1,2-Dichlorobenzene U 0.717 8.44 1.25 05/18/2021 01:50 WG1672299 1,3-Dichlorobenzene U 1.01 8.44 1.25 05/18/2021 01:50 WG1672299 1,4-Dichlorobenzene U 1.18 8.44 1.25 05/18/2021 01:50 WG1672299 Dichlorodifluoromethane U 2.71 4.23 1.25 05/18/2021 01:50 WG1672299 1,1-Dichloroethane U 0.829 4.23 1.25 05/18/2021 01:50 WG1672299 1,2-Dichloroethane U 1.09 4.23 1.25 05/18/2021 01:50 WG1672299 1,1-Dichloroethene U 1.02 4.23 1.25 05/18/2021 01:50 WG1672299 cis-1,2-Dichloroethene U 1.24 4.23 1.25 05/18/2021 01:50 WG1672299 trans-1,2-Dichloroethene U 1.75 8.44 1.25 05/18/2021 01:50 WG1672299 1,2-Dichloropropane U 2.40 8.44 1.25 05/18/2021 01:50 WG1672299 1,1-Dichloropropene U 1.36 4.23 1.25 05/18/2021 01:50 WG1672299 1,3-Dichloropropane U 0.845 8.44 1.25 05/18/2021 01:50 WG1672299 cis-1,3-Dichloropropene U 1.28 4.23 1.25 05/18/2021 01:50 WG1672299 trans-1,3-Dichloropropene U 1.93 8.44 1.25 05/18/2021 01:50 WG1672299 2,2-Dichloropropane U 2.34 4.23 1.25 05/18/2021 01:50 WG1672299 Di-isopropyl ether U 0.692 1.69 1.25 05/18/2021 01:50 WG1672299 Ethylbenzene U 1.24 4.23 1.25 05/18/2021 01:50 WG1672299 Hexachloro-1,3-butadiene U 10.1 42.3 1.25 05/18/2021 01:50 WG1672299 Isopropylbenzene U 0.717 4.23 1.25 05/18/2021 01:50 WG1672299 p-Isopropyltoluene U 4.31 8.44 1.25 05/18/2021 01:50 WG1672299 2-Butanone (MEK)U 107 169 1.25 05/18/2021 01:50 WG1672299 Methylene Chloride U 11.2 42.3 1.25 05/18/2021 01:50 WG1672299 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 18 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 18 of 69 SAMPLE RESULTS - 06 L1352734 S-6 Collected date/time: 05/12/21 09:40 Volatile Organic Compounds (GC/MS) by Method 8260D Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time 4-Methyl-2-pentanone (MIBK)U 3.85 42.3 1.25 05/18/2021 01:50 WG1672299 Methyl tert-butyl ether U 0.591 1.69 1.25 05/18/2021 01:50 WG1672299 Naphthalene U 8.23 21.1 1.25 05/20/2021 19:59 WG1674133 n-Propylbenzene U 1.61 8.44 1.25 05/18/2021 01:50 WG1672299 Styrene U 0.386 21.1 1.25 05/18/2021 01:50 WG1672299 1,1,1,2-Tetrachloroethane U 1.61 4.23 1.25 05/18/2021 01:50 WG1672299 1,1,2,2-Tetrachloroethane U C3 1.17 4.23 1.25 05/18/2021 01:50 WG1672299 Tetrachloroethene U 1.51 4.23 1.25 05/18/2021 01:50 WG1672299 Toluene U 2.20 8.44 1.25 05/18/2021 01:50 WG1672299 1,2,3-Trichlorobenzene U C3 12.4 21.1 1.25 05/18/2021 01:50 WG1672299 1,2,4-Trichlorobenzene U C3 7.42 21.1 1.25 05/18/2021 01:50 WG1672299 1,1,1-Trichloroethane U 1.55 4.23 1.25 05/18/2021 01:50 WG1672299 1,1,2-Trichloroethane U 1.01 4.23 1.25 05/18/2021 01:50 WG1672299 Trichloroethene U 0.985 1.69 1.25 05/18/2021 01:50 WG1672299 Trichlorofluoromethane U 1.39 4.23 1.25 05/18/2021 01:50 WG1672299 1,2,3-Trichloropropane U 2.73 21.1 1.25 05/18/2021 01:50 WG1672299 1,2,4-Trimethylbenzene U 2.67 8.44 1.25 05/18/2021 01:50 WG1672299 1,3,5-Trimethylbenzene U 3.37 8.44 1.25 05/18/2021 01:50 WG1672299 Vinyl chloride U 1.96 4.23 1.25 05/18/2021 01:50 WG1672299 Xylenes, Total U 1.48 11.0 1.25 05/18/2021 01:50 WG1672299 (S) Toluene-d8 115 75.0-131 05/18/2021 01:50 WG1672299 (S) Toluene-d8 114 75.0-131 05/20/2021 19:59 WG1674133 (S) 4-Bromofluorobenzene 93.0 67.0-138 05/18/2021 01:50 WG1672299 (S) 4-Bromofluorobenzene 86.1 67.0-138 05/20/2021 19:59 WG1674133 (S) 1,2-Dichloroethane-d4 102 70.0-130 05/18/2021 01:50 WG1672299 (S) 1,2-Dichloroethane-d4 98.9 70.0-130 05/20/2021 19:59 WG1674133 Semi-Volatile Organic Compounds (GC) by Method 8015C Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time TPH (GC/FID) High Fraction 5400 918 4780 1 05/20/2021 16:49 WG1673614 (S) o-Terphenyl 65.3 18.0-148 05/20/2021 16:49 WG1673614 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 19 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 19 of 69 SAMPLE RESULTS - 07 L1352734 S-7 Collected date/time: 05/12/21 09:50 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 81.9 1 05/18/2021 22:07 WG1672934 Volatile Organic Compounds (GC) by Method 8015C Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time TPH (GC/FID) Low Fraction 1550 J 1090 5010 36.5 05/17/2021 19:13 WG1671953 (S) a,a,a-Trifluorotoluene(FID)106 77.0-120 05/17/2021 19:13 WG1671953 Volatile Organic Compounds (GC/MS) by Method 8260D Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time Acetone U 72.3 99.0 1.44 05/18/2021 02:09 WG1672299 Acrylonitrile U 7.15 24.7 1.44 05/18/2021 02:09 WG1672299 Benzene U 0.924 1.98 1.44 05/18/2021 02:09 WG1672299 Bromobenzene U 1.79 24.7 1.44 05/18/2021 02:09 WG1672299 Bromodichloromethane U 1.43 4.95 1.44 05/18/2021 02:09 WG1672299 Bromoform U 2.31 49.5 1.44 05/18/2021 02:09 WG1672299 Bromomethane U 3.90 24.7 1.44 05/18/2021 02:09 WG1672299 n-Butylbenzene U 10.4 24.7 1.44 05/18/2021 02:09 WG1672299 sec-Butylbenzene U 5.71 24.7 1.44 05/18/2021 02:09 WG1672299 tert-Butylbenzene U 3.86 9.90 1.44 05/18/2021 02:09 WG1672299 Carbon tetrachloride U 1.77 9.90 1.44 05/18/2021 02:09 WG1672299 Chlorobenzene U 0.415 4.95 1.44 05/18/2021 02:09 WG1672299 Chlorodibromomethane U 1.21 4.95 1.44 05/18/2021 02:09 WG1672299 Chloroethane U 3.37 9.90 1.44 05/18/2021 02:09 WG1672299 Chloroform 4.15 J 2.03 4.95 1.44 05/18/2021 02:09 WG1672299 Chloromethane U 8.61 24.7 1.44 05/18/2021 02:09 WG1672299 2-Chlorotoluene U 1.72 4.95 1.44 05/18/2021 02:09 WG1672299 4-Chlorotoluene U 0.891 9.90 1.44 05/18/2021 02:09 WG1672299 1,2-Dibromo-3-Chloropropane U 7.73 49.5 1.44 05/18/2021 02:09 WG1672299 1,2-Dibromoethane U 1.28 4.95 1.44 05/18/2021 02:09 WG1672299 Dibromomethane U 1.48 9.90 1.44 05/18/2021 02:09 WG1672299 1,2-Dichlorobenzene U 0.841 9.90 1.44 05/18/2021 02:09 WG1672299 1,3-Dichlorobenzene U 1.19 9.90 1.44 05/18/2021 02:09 WG1672299 1,4-Dichlorobenzene U 1.39 9.90 1.44 05/18/2021 02:09 WG1672299 Dichlorodifluoromethane U 3.19 4.95 1.44 05/18/2021 02:09 WG1672299 1,1-Dichloroethane U 0.972 4.95 1.44 05/18/2021 02:09 WG1672299 1,2-Dichloroethane U 1.29 4.95 1.44 05/18/2021 02:09 WG1672299 1,1-Dichloroethene U 1.20 4.95 1.44 05/18/2021 02:09 WG1672299 cis-1,2-Dichloroethene U 1.46 4.95 1.44 05/18/2021 02:09 WG1672299 trans-1,2-Dichloroethene U 2.06 9.90 1.44 05/18/2021 02:09 WG1672299 1,2-Dichloropropane U 2.80 9.90 1.44 05/18/2021 02:09 WG1672299 1,1-Dichloropropene U 1.59 4.95 1.44 05/18/2021 02:09 WG1672299 1,3-Dichloropropane U 0.991 9.90 1.44 05/18/2021 02:09 WG1672299 cis-1,3-Dichloropropene U 1.50 4.95 1.44 05/18/2021 02:09 WG1672299 trans-1,3-Dichloropropene U 2.25 9.90 1.44 05/18/2021 02:09 WG1672299 2,2-Dichloropropane U 2.74 4.95 1.44 05/18/2021 02:09 WG1672299 Di-isopropyl ether U 0.811 1.98 1.44 05/18/2021 02:09 WG1672299 Ethylbenzene U 1.46 4.95 1.44 05/18/2021 02:09 WG1672299 Hexachloro-1,3-butadiene U 11.9 49.5 1.44 05/18/2021 02:09 WG1672299 Isopropylbenzene U 0.841 4.95 1.44 05/18/2021 02:09 WG1672299 p-Isopropyltoluene U 5.05 9.90 1.44 05/18/2021 02:09 WG1672299 2-Butanone (MEK)U 126 198 1.44 05/18/2021 02:09 WG1672299 Methylene Chloride U 13.1 49.5 1.44 05/18/2021 02:09 WG1672299 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 20 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 20 of 69 SAMPLE RESULTS - 07 L1352734 S-7 Collected date/time: 05/12/21 09:50 Volatile Organic Compounds (GC/MS) by Method 8260D Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time 4-Methyl-2-pentanone (MIBK)U 4.51 49.5 1.44 05/18/2021 02:09 WG1672299 Methyl tert-butyl ether U 0.693 1.98 1.44 05/18/2021 02:09 WG1672299 Naphthalene U 9.67 24.7 1.44 05/20/2021 20:20 WG1674133 n-Propylbenzene U 1.88 9.90 1.44 05/18/2021 02:09 WG1672299 Styrene U 0.454 24.7 1.44 05/18/2021 02:09 WG1672299 1,1,1,2-Tetrachloroethane U 1.88 4.95 1.44 05/18/2021 02:09 WG1672299 1,1,2,2-Tetrachloroethane U C3 1.37 4.95 1.44 05/18/2021 02:09 WG1672299 Tetrachloroethene U 1.77 4.95 1.44 05/18/2021 02:09 WG1672299 Toluene U 2.57 9.90 1.44 05/18/2021 02:09 WG1672299 1,2,3-Trichlorobenzene U C3 14.6 24.7 1.44 05/18/2021 02:09 WG1672299 1,2,4-Trichlorobenzene U C3 8.72 24.7 1.44 05/18/2021 02:09 WG1672299 1,1,1-Trichloroethane U 1.83 4.95 1.44 05/18/2021 02:09 WG1672299 1,1,2-Trichloroethane U 1.18 4.95 1.44 05/18/2021 02:09 WG1672299 Trichloroethene U 1.16 1.98 1.44 05/18/2021 02:09 WG1672299 Trichlorofluoromethane U 1.64 4.95 1.44 05/18/2021 02:09 WG1672299 1,2,3-Trichloropropane U 3.20 24.7 1.44 05/18/2021 02:09 WG1672299 1,2,4-Trimethylbenzene U 3.13 9.90 1.44 05/18/2021 02:09 WG1672299 1,3,5-Trimethylbenzene U 3.96 9.90 1.44 05/18/2021 02:09 WG1672299 Vinyl chloride U 2.30 4.95 1.44 05/18/2021 02:09 WG1672299 Xylenes, Total U 1.75 12.9 1.44 05/18/2021 02:09 WG1672299 (S) Toluene-d8 118 75.0-131 05/18/2021 02:09 WG1672299 (S) Toluene-d8 117 75.0-131 05/20/2021 20:20 WG1674133 (S) 4-Bromofluorobenzene 88.1 67.0-138 05/18/2021 02:09 WG1672299 (S) 4-Bromofluorobenzene 90.7 67.0-138 05/20/2021 20:20 WG1674133 (S) 1,2-Dichloroethane-d4 94.8 70.0-130 05/18/2021 02:09 WG1672299 (S) 1,2-Dichloroethane-d4 91.1 70.0-130 05/20/2021 20:20 WG1674133 Semi-Volatile Organic Compounds (GC) by Method 8015C Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time TPH (GC/FID) High Fraction 1450 J 939 4890 1 05/20/2021 16:36 WG1673614 (S) o-Terphenyl 64.3 18.0-148 05/20/2021 16:36 WG1673614 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 21 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 21 of 69 SAMPLE RESULTS - 08 L1352734 S-8 Collected date/time: 05/12/21 10:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 73.8 1 05/18/2021 22:07 WG1672934 Volatile Organic Compounds (GC) by Method 8015C Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time TPH (GC/FID) Low Fraction 1250 J 1160 5330 32.8 05/17/2021 19:37 WG1671953 (S) a,a,a-Trifluorotoluene(FID)104 77.0-120 05/17/2021 19:37 WG1671953 Volatile Organic Compounds (GC/MS) by Method 8260D Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time Acetone U 82.1 113 1.4 05/18/2021 02:28 WG1672299 Acrylonitrile U 8.12 28.1 1.4 05/18/2021 02:28 WG1672299 Benzene U 1.05 2.25 1.4 05/18/2021 02:28 WG1672299 Bromobenzene U 2.03 28.1 1.4 05/18/2021 02:28 WG1672299 Bromodichloromethane U 1.64 5.63 1.4 05/18/2021 02:28 WG1672299 Bromoform U 2.64 56.3 1.4 05/18/2021 02:28 WG1672299 Bromomethane U 4.44 28.1 1.4 05/18/2021 02:28 WG1672299 n-Butylbenzene U 11.8 28.1 1.4 05/18/2021 02:28 WG1672299 sec-Butylbenzene U 6.48 28.1 1.4 05/18/2021 02:28 WG1672299 tert-Butylbenzene U 4.39 11.3 1.4 05/18/2021 02:28 WG1672299 Carbon tetrachloride U 2.03 11.3 1.4 05/18/2021 02:28 WG1672299 Chlorobenzene U 0.473 5.63 1.4 05/18/2021 02:28 WG1672299 Chlorodibromomethane U 1.38 5.63 1.4 05/18/2021 02:28 WG1672299 Chloroethane U 3.83 11.3 1.4 05/18/2021 02:28 WG1672299 Chloroform 7.70 2.31 5.63 1.4 05/18/2021 02:28 WG1672299 Chloromethane U 9.79 28.1 1.4 05/18/2021 02:28 WG1672299 2-Chlorotoluene U 1.94 5.63 1.4 05/18/2021 02:28 WG1672299 4-Chlorotoluene U 1.01 11.3 1.4 05/18/2021 02:28 WG1672299 1,2-Dibromo-3-Chloropropane U 8.78 56.3 1.4 05/18/2021 02:28 WG1672299 1,2-Dibromoethane U 1.46 5.63 1.4 05/18/2021 02:28 WG1672299 Dibromomethane U 1.69 11.3 1.4 05/18/2021 02:28 WG1672299 1,2-Dichlorobenzene U 0.956 11.3 1.4 05/18/2021 02:28 WG1672299 1,3-Dichlorobenzene U 1.35 11.3 1.4 05/18/2021 02:28 WG1672299 1,4-Dichlorobenzene U 1.58 11.3 1.4 05/18/2021 02:28 WG1672299 Dichlorodifluoromethane U 3.62 5.63 1.4 05/18/2021 02:28 WG1672299 1,1-Dichloroethane U 1.10 5.63 1.4 05/18/2021 02:28 WG1672299 1,2-Dichloroethane U 1.46 5.63 1.4 05/18/2021 02:28 WG1672299 1,1-Dichloroethene U 1.36 5.63 1.4 05/18/2021 02:28 WG1672299 cis-1,2-Dichloroethene U 1.66 5.63 1.4 05/18/2021 02:28 WG1672299 trans-1,2-Dichloroethene U 2.35 11.3 1.4 05/18/2021 02:28 WG1672299 1,2-Dichloropropane U 3.20 11.3 1.4 05/18/2021 02:28 WG1672299 1,1-Dichloropropene U 1.82 5.63 1.4 05/18/2021 02:28 WG1672299 1,3-Dichloropropane U 1.13 11.3 1.4 05/18/2021 02:28 WG1672299 cis-1,3-Dichloropropene U 1.70 5.63 1.4 05/18/2021 02:28 WG1672299 trans-1,3-Dichloropropene U 2.57 11.3 1.4 05/18/2021 02:28 WG1672299 2,2-Dichloropropane U 3.10 5.63 1.4 05/18/2021 02:28 WG1672299 Di-isopropyl ether U 0.923 2.25 1.4 05/18/2021 02:28 WG1672299 Ethylbenzene U 1.66 5.63 1.4 05/18/2021 02:28 WG1672299 Hexachloro-1,3-butadiene U 13.5 56.3 1.4 05/18/2021 02:28 WG1672299 Isopropylbenzene U 0.956 5.63 1.4 05/18/2021 02:28 WG1672299 p-Isopropyltoluene U 5.74 11.3 1.4 05/18/2021 02:28 WG1672299 2-Butanone (MEK)264 C5 143 225 1.4 05/18/2021 02:28 WG1672299 Methylene Chloride U 14.9 56.3 1.4 05/18/2021 02:28 WG1672299 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 22 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 22 of 69 SAMPLE RESULTS - 08 L1352734 S-8 Collected date/time: 05/12/21 10:00 Volatile Organic Compounds (GC/MS) by Method 8260D Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time 4-Methyl-2-pentanone (MIBK)U 5.13 56.3 1.4 05/18/2021 02:28 WG1672299 Methyl tert-butyl ether U 0.788 2.25 1.4 05/18/2021 02:28 WG1672299 Naphthalene U 11.0 28.1 1.4 05/20/2021 20:40 WG1674133 n-Propylbenzene U 2.14 11.3 1.4 05/18/2021 02:28 WG1672299 Styrene U 0.516 28.1 1.4 05/18/2021 02:28 WG1672299 1,1,1,2-Tetrachloroethane U 2.14 5.63 1.4 05/18/2021 02:28 WG1672299 1,1,2,2-Tetrachloroethane U C3 1.56 5.63 1.4 05/18/2021 02:28 WG1672299 Tetrachloroethene U 2.01 5.63 1.4 05/18/2021 02:28 WG1672299 Toluene U 2.93 11.3 1.4 05/18/2021 02:28 WG1672299 1,2,3-Trichlorobenzene U C3 16.6 28.1 1.4 05/18/2021 02:28 WG1672299 1,2,4-Trichlorobenzene U C3 9.90 28.1 1.4 05/18/2021 02:28 WG1672299 1,1,1-Trichloroethane U 2.07 5.63 1.4 05/18/2021 02:28 WG1672299 1,1,2-Trichloroethane U 1.34 5.63 1.4 05/18/2021 02:28 WG1672299 Trichloroethene U 1.31 2.25 1.4 05/18/2021 02:28 WG1672299 Trichlorofluoromethane U 1.86 5.63 1.4 05/18/2021 02:28 WG1672299 1,2,3-Trichloropropane U 3.65 28.1 1.4 05/18/2021 02:28 WG1672299 1,2,4-Trimethylbenzene U 3.55 11.3 1.4 05/18/2021 02:28 WG1672299 1,3,5-Trimethylbenzene U 4.50 11.3 1.4 05/18/2021 02:28 WG1672299 Vinyl chloride U 2.60 5.63 1.4 05/18/2021 02:28 WG1672299 Xylenes, Total U 1.98 14.6 1.4 05/18/2021 02:28 WG1672299 (S) Toluene-d8 111 75.0-131 05/18/2021 02:28 WG1672299 (S) Toluene-d8 117 75.0-131 05/20/2021 20:40 WG1674133 (S) 4-Bromofluorobenzene 94.9 67.0-138 05/18/2021 02:28 WG1672299 (S) 4-Bromofluorobenzene 89.0 67.0-138 05/20/2021 20:40 WG1674133 (S) 1,2-Dichloroethane-d4 103 70.0-130 05/18/2021 02:28 WG1672299 (S) 1,2-Dichloroethane-d4 95.6 70.0-130 05/20/2021 20:40 WG1674133 Semi-Volatile Organic Compounds (GC) by Method 8015C Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time TPH (GC/FID) High Fraction U 1040 5420 1 05/20/2021 16:10 WG1673614 (S) o-Terphenyl 66.3 18.0-148 05/20/2021 16:10 WG1673614 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 23 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 23 of 69 SAMPLE RESULTS - 09 L1352734 S-9 Collected date/time: 05/12/21 10:10 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 75.0 1 05/18/2021 22:07 WG1672934 Volatile Organic Compounds (GC) by Method 8015C Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time TPH (GC/FID) Low Fraction 1290 J 1240 5690 36.5 05/17/2021 20:01 WG1671953 (S) a,a,a-Trifluorotoluene(FID)106 77.0-120 05/17/2021 20:01 WG1671953 Volatile Organic Compounds (GC/MS) by Method 8260D Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time Acetone U 80.3 110 1.4 05/18/2021 02:47 WG1672299 Acrylonitrile U 7.93 27.5 1.4 05/18/2021 02:47 WG1672299 Benzene U 1.03 2.20 1.4 05/18/2021 02:47 WG1672299 Bromobenzene U 1.98 27.5 1.4 05/18/2021 02:47 WG1672299 Bromodichloromethane U 1.60 5.50 1.4 05/18/2021 02:47 WG1672299 Bromoform U 2.58 55.0 1.4 05/18/2021 02:47 WG1672299 Bromomethane U 4.34 27.5 1.4 05/18/2021 02:47 WG1672299 n-Butylbenzene U 11.5 27.5 1.4 05/18/2021 02:47 WG1672299 sec-Butylbenzene U 6.33 27.5 1.4 05/18/2021 02:47 WG1672299 tert-Butylbenzene U 4.29 11.0 1.4 05/18/2021 02:47 WG1672299 Carbon tetrachloride U 1.98 11.0 1.4 05/18/2021 02:47 WG1672299 Chlorobenzene U 0.462 5.50 1.4 05/18/2021 02:47 WG1672299 Chlorodibromomethane U 1.35 5.50 1.4 05/18/2021 02:47 WG1672299 Chloroethane U 3.74 11.0 1.4 05/18/2021 02:47 WG1672299 Chloroform 13.3 2.26 5.50 1.4 05/18/2021 02:47 WG1672299 Chloromethane U 9.57 27.5 1.4 05/18/2021 02:47 WG1672299 2-Chlorotoluene U 1.90 5.50 1.4 05/18/2021 02:47 WG1672299 4-Chlorotoluene U 0.990 11.0 1.4 05/18/2021 02:47 WG1672299 1,2-Dibromo-3-Chloropropane U 8.58 55.0 1.4 05/18/2021 02:47 WG1672299 1,2-Dibromoethane U 1.42 5.50 1.4 05/18/2021 02:47 WG1672299 Dibromomethane U 1.65 11.0 1.4 05/18/2021 02:47 WG1672299 1,2-Dichlorobenzene U 0.935 11.0 1.4 05/18/2021 02:47 WG1672299 1,3-Dichlorobenzene U 1.32 11.0 1.4 05/18/2021 02:47 WG1672299 1,4-Dichlorobenzene U 1.54 11.0 1.4 05/18/2021 02:47 WG1672299 Dichlorodifluoromethane U 3.53 5.50 1.4 05/18/2021 02:47 WG1672299 1,1-Dichloroethane U 1.08 5.50 1.4 05/18/2021 02:47 WG1672299 1,2-Dichloroethane U 1.43 5.50 1.4 05/18/2021 02:47 WG1672299 1,1-Dichloroethene U 1.33 5.50 1.4 05/18/2021 02:47 WG1672299 cis-1,2-Dichloroethene U 1.62 5.50 1.4 05/18/2021 02:47 WG1672299 trans-1,2-Dichloroethene U 2.29 11.0 1.4 05/18/2021 02:47 WG1672299 1,2-Dichloropropane U 3.13 11.0 1.4 05/18/2021 02:47 WG1672299 1,1-Dichloropropene U 1.78 5.50 1.4 05/18/2021 02:47 WG1672299 1,3-Dichloropropane U 1.10 11.0 1.4 05/18/2021 02:47 WG1672299 cis-1,3-Dichloropropene U 1.67 5.50 1.4 05/18/2021 02:47 WG1672299 trans-1,3-Dichloropropene U 2.51 11.0 1.4 05/18/2021 02:47 WG1672299 2,2-Dichloropropane U 3.03 5.50 1.4 05/18/2021 02:47 WG1672299 Di-isopropyl ether U 0.902 2.20 1.4 05/18/2021 02:47 WG1672299 Ethylbenzene U 1.62 5.50 1.4 05/18/2021 02:47 WG1672299 Hexachloro-1,3-butadiene U 13.2 55.0 1.4 05/18/2021 02:47 WG1672299 Isopropylbenzene U 0.935 5.50 1.4 05/18/2021 02:47 WG1672299 p-Isopropyltoluene U 5.61 11.0 1.4 05/18/2021 02:47 WG1672299 2-Butanone (MEK)U 140 220 1.4 05/18/2021 02:47 WG1672299 Methylene Chloride U 14.6 55.0 1.4 05/18/2021 02:47 WG1672299 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 24 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 24 of 69 SAMPLE RESULTS - 09 L1352734 S-9 Collected date/time: 05/12/21 10:10 Volatile Organic Compounds (GC/MS) by Method 8260D Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time 4-Methyl-2-pentanone (MIBK)U 5.01 55.0 1.4 05/18/2021 02:47 WG1672299 Methyl tert-butyl ether U 0.770 2.20 1.4 05/18/2021 02:47 WG1672299 Naphthalene U 10.7 27.5 1.4 05/20/2021 21:01 WG1674133 n-Propylbenzene U 2.09 11.0 1.4 05/18/2021 02:47 WG1672299 Styrene U 0.504 27.5 1.4 05/18/2021 02:47 WG1672299 1,1,1,2-Tetrachloroethane U 2.09 5.50 1.4 05/18/2021 02:47 WG1672299 1,1,2,2-Tetrachloroethane U C3 1.53 5.50 1.4 05/18/2021 02:47 WG1672299 Tetrachloroethene U 1.96 5.50 1.4 05/18/2021 02:47 WG1672299 Toluene U 2.86 11.0 1.4 05/18/2021 02:47 WG1672299 1,2,3-Trichlorobenzene U C3 16.2 27.5 1.4 05/18/2021 02:47 WG1672299 1,2,4-Trichlorobenzene U C3 9.68 27.5 1.4 05/18/2021 02:47 WG1672299 1,1,1-Trichloroethane U 2.03 5.50 1.4 05/18/2021 02:47 WG1672299 1,1,2-Trichloroethane U 1.31 5.50 1.4 05/18/2021 02:47 WG1672299 Trichloroethene U 1.28 2.20 1.4 05/18/2021 02:47 WG1672299 Trichlorofluoromethane U 1.82 5.50 1.4 05/18/2021 02:47 WG1672299 1,2,3-Trichloropropane U 3.57 27.5 1.4 05/18/2021 02:47 WG1672299 1,2,4-Trimethylbenzene U 3.47 11.0 1.4 05/18/2021 02:47 WG1672299 1,3,5-Trimethylbenzene U 4.40 11.0 1.4 05/18/2021 02:47 WG1672299 Vinyl chloride U 2.54 5.50 1.4 05/18/2021 02:47 WG1672299 Xylenes, Total U 1.93 14.3 1.4 05/18/2021 02:47 WG1672299 (S) Toluene-d8 115 75.0-131 05/18/2021 02:47 WG1672299 (S) Toluene-d8 113 75.0-131 05/20/2021 21:01 WG1674133 (S) 4-Bromofluorobenzene 91.8 67.0-138 05/18/2021 02:47 WG1672299 (S) 4-Bromofluorobenzene 91.4 67.0-138 05/20/2021 21:01 WG1674133 (S) 1,2-Dichloroethane-d4 99.5 70.0-130 05/18/2021 02:47 WG1672299 (S) 1,2-Dichloroethane-d4 96.9 70.0-130 05/20/2021 21:01 WG1674133 Semi-Volatile Organic Compounds (GC) by Method 8015C Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time TPH (GC/FID) High Fraction 1230 J 1020 5330 1 05/20/2021 12:47 WG1673616 (S) o-Terphenyl 73.2 18.0-148 05/20/2021 12:47 WG1673616 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 25 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 25 of 69 SAMPLE RESULTS - 10 L1352734 S-10 Collected date/time: 05/12/21 10:20 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 83.3 1 05/18/2021 22:07 WG1672934 Volatile Organic Compounds (GC) by Method 8015C Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time TPH (GC/FID) Low Fraction U 812 3740 27 05/17/2021 18:37 WG1671957 (S) a,a,a-Trifluorotoluene(FID)98.2 77.0-120 05/17/2021 18:37 WG1671957 Volatile Organic Compounds (GC/MS) by Method 8260D Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time Acetone U 61.8 84.5 1.24 05/18/2021 03:06 WG1672299 Acrylonitrile U 6.11 21.1 1.24 05/18/2021 03:06 WG1672299 Benzene U 0.789 1.69 1.24 05/18/2021 03:06 WG1672299 Bromobenzene U 1.53 21.1 1.24 05/18/2021 03:06 WG1672299 Bromodichloromethane U 1.23 4.23 1.24 05/18/2021 03:06 WG1672299 Bromoform U 1.98 42.3 1.24 05/18/2021 03:06 WG1672299 Bromomethane U 3.33 21.1 1.24 05/18/2021 03:06 WG1672299 n-Butylbenzene U 8.88 21.1 1.24 05/18/2021 03:06 WG1672299 sec-Butylbenzene U 4.87 21.1 1.24 05/18/2021 03:06 WG1672299 tert-Butylbenzene U 3.30 8.45 1.24 05/18/2021 03:06 WG1672299 Carbon tetrachloride U 1.51 8.45 1.24 05/18/2021 03:06 WG1672299 Chlorobenzene U 0.355 4.23 1.24 05/18/2021 03:06 WG1672299 Chlorodibromomethane U 1.03 4.23 1.24 05/18/2021 03:06 WG1672299 Chloroethane U 2.88 8.45 1.24 05/18/2021 03:06 WG1672299 Chloroform 4.49 1.75 4.23 1.24 05/18/2021 03:06 WG1672299 Chloromethane U 7.35 21.1 1.24 05/18/2021 03:06 WG1672299 2-Chlorotoluene U 1.46 4.23 1.24 05/18/2021 03:06 WG1672299 4-Chlorotoluene U 0.761 8.45 1.24 05/18/2021 03:06 WG1672299 1,2-Dibromo-3-Chloropropane U 6.60 42.3 1.24 05/18/2021 03:06 WG1672299 1,2-Dibromoethane U 1.10 4.23 1.24 05/18/2021 03:06 WG1672299 Dibromomethane U 1.27 8.45 1.24 05/18/2021 03:06 WG1672299 1,2-Dichlorobenzene U 0.719 8.45 1.24 05/18/2021 03:06 WG1672299 1,3-Dichlorobenzene U 1.01 8.45 1.24 05/18/2021 03:06 WG1672299 1,4-Dichlorobenzene U 1.18 8.45 1.24 05/18/2021 03:06 WG1672299 Dichlorodifluoromethane U 2.73 4.23 1.24 05/18/2021 03:06 WG1672299 1,1-Dichloroethane U 0.830 4.23 1.24 05/18/2021 03:06 WG1672299 1,2-Dichloroethane U 1.10 4.23 1.24 05/18/2021 03:06 WG1672299 1,1-Dichloroethene U 1.02 4.23 1.24 05/18/2021 03:06 WG1672299 cis-1,2-Dichloroethene U 1.24 4.23 1.24 05/18/2021 03:06 WG1672299 trans-1,2-Dichloroethene U 1.76 8.45 1.24 05/18/2021 03:06 WG1672299 1,2-Dichloropropane U 2.40 8.45 1.24 05/18/2021 03:06 WG1672299 1,1-Dichloropropene U 1.36 4.23 1.24 05/18/2021 03:06 WG1672299 1,3-Dichloropropane U 0.847 8.45 1.24 05/18/2021 03:06 WG1672299 cis-1,3-Dichloropropene U 1.28 4.23 1.24 05/18/2021 03:06 WG1672299 trans-1,3-Dichloropropene U 1.92 8.45 1.24 05/18/2021 03:06 WG1672299 2,2-Dichloropropane U 2.33 4.23 1.24 05/18/2021 03:06 WG1672299 Di-isopropyl ether U 0.693 1.69 1.24 05/18/2021 03:06 WG1672299 Ethylbenzene U 1.25 4.23 1.24 05/18/2021 03:06 WG1672299 Hexachloro-1,3-butadiene U 10.1 42.3 1.24 05/18/2021 03:06 WG1672299 Isopropylbenzene U 0.719 4.23 1.24 05/18/2021 03:06 WG1672299 p-Isopropyltoluene U 4.31 8.45 1.24 05/18/2021 03:06 WG1672299 2-Butanone (MEK)U 107 169 1.24 05/18/2021 03:06 WG1672299 Methylene Chloride U 11.2 42.3 1.24 05/18/2021 03:06 WG1672299 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 26 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 26 of 69 SAMPLE RESULTS - 10 L1352734 S-10 Collected date/time: 05/12/21 10:20 Volatile Organic Compounds (GC/MS) by Method 8260D Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time 4-Methyl-2-pentanone (MIBK)U 3.86 42.3 1.24 05/18/2021 03:06 WG1672299 Methyl tert-butyl ether U 0.592 1.69 1.24 05/18/2021 03:06 WG1672299 Naphthalene U 8.25 21.1 1.24 05/18/2021 03:06 WG1672299 n-Propylbenzene U 1.61 8.45 1.24 05/18/2021 03:06 WG1672299 Styrene U 0.387 21.1 1.24 05/18/2021 03:06 WG1672299 1,1,1,2-Tetrachloroethane U 1.61 4.23 1.24 05/18/2021 03:06 WG1672299 1,1,2,2-Tetrachloroethane U C3 1.18 4.23 1.24 05/18/2021 03:06 WG1672299 Tetrachloroethene U 1.51 4.23 1.24 05/18/2021 03:06 WG1672299 Toluene U 2.20 8.45 1.24 05/18/2021 03:06 WG1672299 1,2,3-Trichlorobenzene U C3 12.4 21.1 1.24 05/18/2021 03:06 WG1672299 1,2,4-Trichlorobenzene U C3 7.45 21.1 1.24 05/18/2021 03:06 WG1672299 1,1,1-Trichloroethane U 1.55 4.23 1.24 05/18/2021 03:06 WG1672299 1,1,2-Trichloroethane U 1.01 4.23 1.24 05/18/2021 03:06 WG1672299 Trichloroethene U 0.987 1.69 1.24 05/18/2021 03:06 WG1672299 Trichlorofluoromethane U 1.40 4.23 1.24 05/18/2021 03:06 WG1672299 1,2,3-Trichloropropane U 2.74 21.1 1.24 05/18/2021 03:06 WG1672299 1,2,4-Trimethylbenzene U 2.67 8.45 1.24 05/18/2021 03:06 WG1672299 1,3,5-Trimethylbenzene U 3.38 8.45 1.24 05/18/2021 03:06 WG1672299 Vinyl chloride U 1.96 4.23 1.24 05/18/2021 03:06 WG1672299 Xylenes, Total U 1.49 11.0 1.24 05/18/2021 03:06 WG1672299 (S) Toluene-d8 116 75.0-131 05/18/2021 03:06 WG1672299 (S) 4-Bromofluorobenzene 92.4 67.0-138 05/18/2021 03:06 WG1672299 (S) 1,2-Dichloroethane-d4 95.1 70.0-130 05/18/2021 03:06 WG1672299 Semi-Volatile Organic Compounds (GC) by Method 8015C Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time TPH (GC/FID) High Fraction 5200 924 4800 1 05/20/2021 14:24 WG1673616 (S) o-Terphenyl 75.2 18.0-148 05/20/2021 14:24 WG1673616 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 27 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 27 of 69 SAMPLE RESULTS - 11 L1352734 S-11 Collected date/time: 05/12/21 10:40 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 74.3 1 05/18/2021 22:07 WG1672934 Volatile Organic Compounds (GC) by Method 8015C Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time TPH (GC/FID) Low Fraction U 1210 5580 35 05/17/2021 18:59 WG1671957 (S) a,a,a-Trifluorotoluene(FID)95.7 77.0-120 05/17/2021 18:59 WG1671957 Volatile Organic Compounds (GC/MS) by Method 8260D Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time Acetone U 82.9 114 1.43 05/18/2021 03:25 WG1672299 Acrylonitrile U 8.20 28.4 1.43 05/18/2021 03:25 WG1672299 Benzene U 1.06 2.27 1.43 05/18/2021 03:25 WG1672299 Bromobenzene U 2.05 28.4 1.43 05/18/2021 03:25 WG1672299 Bromodichloromethane U 1.65 5.69 1.43 05/18/2021 03:25 WG1672299 Bromoform U 2.65 56.7 1.43 05/18/2021 03:25 WG1672299 Bromomethane U 4.48 28.4 1.43 05/18/2021 03:25 WG1672299 n-Butylbenzene U 11.9 28.4 1.43 05/18/2021 03:25 WG1672299 sec-Butylbenzene U 6.55 28.4 1.43 05/18/2021 03:25 WG1672299 tert-Butylbenzene U 4.43 11.4 1.43 05/18/2021 03:25 WG1672299 Carbon tetrachloride U 2.03 11.4 1.43 05/18/2021 03:25 WG1672299 Chlorobenzene U 0.477 5.69 1.43 05/18/2021 03:25 WG1672299 Chlorodibromomethane U 1.39 5.69 1.43 05/18/2021 03:25 WG1672299 Chloroethane U 3.86 11.4 1.43 05/18/2021 03:25 WG1672299 Chloroform 19.4 2.34 5.69 1.43 05/18/2021 03:25 WG1672299 Chloromethane U 9.88 28.4 1.43 05/18/2021 03:25 WG1672299 2-Chlorotoluene U 1.97 5.69 1.43 05/18/2021 03:25 WG1672299 4-Chlorotoluene U 1.02 11.4 1.43 05/18/2021 03:25 WG1672299 1,2-Dibromo-3-Chloropropane U 8.87 56.7 1.43 05/18/2021 03:25 WG1672299 1,2-Dibromoethane U 1.47 5.69 1.43 05/18/2021 03:25 WG1672299 Dibromomethane U 1.70 11.4 1.43 05/18/2021 03:25 WG1672299 1,2-Dichlorobenzene U 0.966 11.4 1.43 05/18/2021 03:25 WG1672299 1,3-Dichlorobenzene U 1.36 11.4 1.43 05/18/2021 03:25 WG1672299 1,4-Dichlorobenzene U 1.59 11.4 1.43 05/18/2021 03:25 WG1672299 Dichlorodifluoromethane U 3.65 5.69 1.43 05/18/2021 03:25 WG1672299 1,1-Dichloroethane U 1.12 5.69 1.43 05/18/2021 03:25 WG1672299 1,2-Dichloroethane U 1.47 5.69 1.43 05/18/2021 03:25 WG1672299 1,1-Dichloroethene U 1.38 5.69 1.43 05/18/2021 03:25 WG1672299 cis-1,2-Dichloroethene U 1.67 5.69 1.43 05/18/2021 03:25 WG1672299 trans-1,2-Dichloroethene U 2.37 11.4 1.43 05/18/2021 03:25 WG1672299 1,2-Dichloropropane U 3.23 11.4 1.43 05/18/2021 03:25 WG1672299 1,1-Dichloropropene U 1.84 5.69 1.43 05/18/2021 03:25 WG1672299 1,3-Dichloropropane U 1.14 11.4 1.43 05/18/2021 03:25 WG1672299 cis-1,3-Dichloropropene U 1.72 5.69 1.43 05/18/2021 03:25 WG1672299 trans-1,3-Dichloropropene U 2.59 11.4 1.43 05/18/2021 03:25 WG1672299 2,2-Dichloropropane U 3.13 5.69 1.43 05/18/2021 03:25 WG1672299 Di-isopropyl ether U 0.931 2.27 1.43 05/18/2021 03:25 WG1672299 Ethylbenzene U 1.67 5.69 1.43 05/18/2021 03:25 WG1672299 Hexachloro-1,3-butadiene U 13.6 56.7 1.43 05/18/2021 03:25 WG1672299 Isopropylbenzene U 0.966 5.69 1.43 05/18/2021 03:25 WG1672299 p-Isopropyltoluene U 5.80 11.4 1.43 05/18/2021 03:25 WG1672299 2-Butanone (MEK)237 C5 144 227 1.43 05/18/2021 03:25 WG1672299 Methylene Chloride U 15.1 56.7 1.43 05/18/2021 03:25 WG1672299 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 28 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 28 of 69 SAMPLE RESULTS - 11 L1352734 S-11 Collected date/time: 05/12/21 10:40 Volatile Organic Compounds (GC/MS) by Method 8260D Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time 4-Methyl-2-pentanone (MIBK)U 5.18 56.7 1.43 05/18/2021 03:25 WG1672299 Methyl tert-butyl ether U 0.794 2.27 1.43 05/18/2021 03:25 WG1672299 Naphthalene U 11.1 28.4 1.43 05/18/2021 03:25 WG1672299 n-Propylbenzene U 2.16 11.4 1.43 05/18/2021 03:25 WG1672299 Styrene U 0.520 28.4 1.43 05/18/2021 03:25 WG1672299 1,1,1,2-Tetrachloroethane U 2.16 5.69 1.43 05/18/2021 03:25 WG1672299 1,1,2,2-Tetrachloroethane U C3 1.58 5.69 1.43 05/18/2021 03:25 WG1672299 Tetrachloroethene U 2.03 5.69 1.43 05/18/2021 03:25 WG1672299 Toluene U 2.96 11.4 1.43 05/18/2021 03:25 WG1672299 1,2,3-Trichlorobenzene U C3 16.7 28.4 1.43 05/18/2021 03:25 WG1672299 1,2,4-Trichlorobenzene U C3 9.99 28.4 1.43 05/18/2021 03:25 WG1672299 1,1,1-Trichloroethane U 2.10 5.69 1.43 05/18/2021 03:25 WG1672299 1,1,2-Trichloroethane U 1.36 5.69 1.43 05/18/2021 03:25 WG1672299 Trichloroethene U 1.33 2.27 1.43 05/18/2021 03:25 WG1672299 Trichlorofluoromethane U 1.87 5.69 1.43 05/18/2021 03:25 WG1672299 1,2,3-Trichloropropane U 3.69 28.4 1.43 05/18/2021 03:25 WG1672299 1,2,4-Trimethylbenzene U 3.59 11.4 1.43 05/18/2021 03:25 WG1672299 1,3,5-Trimethylbenzene U 4.54 11.4 1.43 05/18/2021 03:25 WG1672299 Vinyl chloride U 2.64 5.69 1.43 05/18/2021 03:25 WG1672299 Xylenes, Total U 2.00 14.8 1.43 05/18/2021 03:25 WG1672299 (S) Toluene-d8 115 75.0-131 05/18/2021 03:25 WG1672299 (S) 4-Bromofluorobenzene 94.1 67.0-138 05/18/2021 03:25 WG1672299 (S) 1,2-Dichloroethane-d4 103 70.0-130 05/18/2021 03:25 WG1672299 Semi-Volatile Organic Compounds (GC) by Method 8015C Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time TPH (GC/FID) High Fraction 2460 J 1040 5380 1 05/20/2021 13:16 WG1673616 (S) o-Terphenyl 61.7 18.0-148 05/20/2021 13:16 WG1673616 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 29 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 29 of 69 SAMPLE RESULTS - 12 L1352734 S-12 Collected date/time: 05/12/21 10:50 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 72.4 1 05/18/2021 22:07 WG1672934 Volatile Organic Compounds (GC) by Method 8015C Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time TPH (GC/FID) Low Fraction U 1270 5830 35.3 05/17/2021 19:21 WG1671957 (S) a,a,a-Trifluorotoluene(FID)97.6 77.0-120 05/17/2021 19:21 WG1671957 Volatile Organic Compounds (GC/MS) by Method 8260D Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time Acetone U 85.1 117 1.41 05/18/2021 03:44 WG1672299 Acrylonitrile U 8.42 29.1 1.41 05/18/2021 03:44 WG1672299 Benzene U 1.09 2.33 1.41 05/18/2021 03:44 WG1672299 Bromobenzene U 2.10 29.1 1.41 05/18/2021 03:44 WG1672299 Bromodichloromethane U 1.69 5.84 1.41 05/18/2021 03:44 WG1672299 Bromoform U 2.73 58.4 1.41 05/18/2021 03:44 WG1672299 Bromomethane U 4.60 29.1 1.41 05/18/2021 03:44 WG1672299 n-Butylbenzene U 12.2 29.1 1.41 05/18/2021 03:44 WG1672299 sec-Butylbenzene U 6.71 29.1 1.41 05/18/2021 03:44 WG1672299 tert-Butylbenzene U 4.55 11.7 1.41 05/18/2021 03:44 WG1672299 Carbon tetrachloride U 2.10 11.7 1.41 05/18/2021 03:44 WG1672299 Chlorobenzene U 0.489 5.84 1.41 05/18/2021 03:44 WG1672299 Chlorodibromomethane U 1.43 5.84 1.41 05/18/2021 03:44 WG1672299 Chloroethane U 3.97 11.7 1.41 05/18/2021 03:44 WG1672299 Chloroform 8.33 2.40 5.84 1.41 05/18/2021 03:44 WG1672299 Chloromethane U 10.1 29.1 1.41 05/18/2021 03:44 WG1672299 2-Chlorotoluene U 2.02 5.84 1.41 05/18/2021 03:44 WG1672299 4-Chlorotoluene U 1.05 11.7 1.41 05/18/2021 03:44 WG1672299 1,2-Dibromo-3-Chloropropane U 9.09 58.4 1.41 05/18/2021 03:44 WG1672299 1,2-Dibromoethane U 1.51 5.84 1.41 05/18/2021 03:44 WG1672299 Dibromomethane U 1.75 11.7 1.41 05/18/2021 03:44 WG1672299 1,2-Dichlorobenzene U 0.990 11.7 1.41 05/18/2021 03:44 WG1672299 1,3-Dichlorobenzene U 1.40 11.7 1.41 05/18/2021 03:44 WG1672299 1,4-Dichlorobenzene U 1.63 11.7 1.41 05/18/2021 03:44 WG1672299 Dichlorodifluoromethane U 3.75 5.84 1.41 05/18/2021 03:44 WG1672299 1,1-Dichloroethane U 1.14 5.84 1.41 05/18/2021 03:44 WG1672299 1,2-Dichloroethane U 1.51 5.84 1.41 05/18/2021 03:44 WG1672299 1,1-Dichloroethene U 1.41 5.84 1.41 05/18/2021 03:44 WG1672299 cis-1,2-Dichloroethene U 1.70 5.84 1.41 05/18/2021 03:44 WG1672299 trans-1,2-Dichloroethene U 2.43 11.7 1.41 05/18/2021 03:44 WG1672299 1,2-Dichloropropane U 3.31 11.7 1.41 05/18/2021 03:44 WG1672299 1,1-Dichloropropene U 1.88 5.84 1.41 05/18/2021 03:44 WG1672299 1,3-Dichloropropane U 1.17 11.7 1.41 05/18/2021 03:44 WG1672299 cis-1,3-Dichloropropene U 1.77 5.84 1.41 05/18/2021 03:44 WG1672299 trans-1,3-Dichloropropene U 2.66 11.7 1.41 05/18/2021 03:44 WG1672299 2,2-Dichloropropane U 3.22 5.84 1.41 05/18/2021 03:44 WG1672299 Di-isopropyl ether U 0.956 2.33 1.41 05/18/2021 03:44 WG1672299 Ethylbenzene U 1.72 5.84 1.41 05/18/2021 03:44 WG1672299 Hexachloro-1,3-butadiene U 14.0 58.4 1.41 05/18/2021 03:44 WG1672299 Isopropylbenzene U 0.990 5.84 1.41 05/18/2021 03:44 WG1672299 p-Isopropyltoluene U 5.95 11.7 1.41 05/18/2021 03:44 WG1672299 2-Butanone (MEK)U 148 233 1.41 05/18/2021 03:44 WG1672299 Methylene Chloride U 15.5 58.4 1.41 05/18/2021 03:44 WG1672299 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 30 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 30 of 69 SAMPLE RESULTS - 12 L1352734 S-12 Collected date/time: 05/12/21 10:50 Volatile Organic Compounds (GC/MS) by Method 8260D Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time 4-Methyl-2-pentanone (MIBK)U 5.31 58.4 1.41 05/18/2021 03:44 WG1672299 Methyl tert-butyl ether U 0.817 2.33 1.41 05/18/2021 03:44 WG1672299 Naphthalene U 11.4 29.1 1.41 05/18/2021 03:44 WG1672299 n-Propylbenzene U 2.22 11.7 1.41 05/18/2021 03:44 WG1672299 Styrene U 0.534 29.1 1.41 05/18/2021 03:44 WG1672299 1,1,1,2-Tetrachloroethane U 2.22 5.84 1.41 05/18/2021 03:44 WG1672299 1,1,2,2-Tetrachloroethane U C3 1.62 5.84 1.41 05/18/2021 03:44 WG1672299 Tetrachloroethene U 2.08 5.84 1.41 05/18/2021 03:44 WG1672299 Toluene U 3.03 11.7 1.41 05/18/2021 03:44 WG1672299 1,2,3-Trichlorobenzene U C3 17.0 29.1 1.41 05/18/2021 03:44 WG1672299 1,2,4-Trichlorobenzene U C3 10.3 29.1 1.41 05/18/2021 03:44 WG1672299 1,1,1-Trichloroethane U 2.15 5.84 1.41 05/18/2021 03:44 WG1672299 1,1,2-Trichloroethane U 1.39 5.84 1.41 05/18/2021 03:44 WG1672299 Trichloroethene U 1.36 2.33 1.41 05/18/2021 03:44 WG1672299 Trichlorofluoromethane U 1.93 5.84 1.41 05/18/2021 03:44 WG1672299 1,2,3-Trichloropropane U 3.77 29.1 1.41 05/18/2021 03:44 WG1672299 1,2,4-Trimethylbenzene U 3.69 11.7 1.41 05/18/2021 03:44 WG1672299 1,3,5-Trimethylbenzene U 4.66 11.7 1.41 05/18/2021 03:44 WG1672299 Vinyl chloride U 2.71 5.84 1.41 05/18/2021 03:44 WG1672299 Xylenes, Total U 2.05 15.2 1.41 05/18/2021 03:44 WG1672299 (S) Toluene-d8 113 75.0-131 05/18/2021 03:44 WG1672299 (S) 4-Bromofluorobenzene 94.1 67.0-138 05/18/2021 03:44 WG1672299 (S) 1,2-Dichloroethane-d4 99.4 70.0-130 05/18/2021 03:44 WG1672299 Semi-Volatile Organic Compounds (GC) by Method 8015C Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time TPH (GC/FID) High Fraction 2670 J 1060 5530 1 05/20/2021 13:02 WG1673616 (S) o-Terphenyl 66.2 18.0-148 05/20/2021 13:02 WG1673616 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 31 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 31 of 69 SAMPLE RESULTS - 13 L1352734 S-13 Collected date/time: 05/12/21 11:05 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 71.8 1 05/18/2021 22:07 WG1672934 Volatile Organic Compounds (GC) by Method 8015C Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time TPH (GC/FID) Low Fraction U 1330 6130 37 05/17/2021 19:43 WG1671957 (S) a,a,a-Trifluorotoluene(FID)98.5 77.0-120 05/17/2021 19:43 WG1671957 Volatile Organic Compounds (GC/MS) by Method 8260D Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time Acetone U 89.6 123 1.48 05/18/2021 04:03 WG1672299 Acrylonitrile U 8.86 30.7 1.48 05/18/2021 04:03 WG1672299 Benzene U 1.15 2.46 1.48 05/18/2021 04:03 WG1672299 Bromobenzene U 2.21 30.7 1.48 05/18/2021 04:03 WG1672299 Bromodichloromethane U 1.78 6.14 1.48 05/18/2021 04:03 WG1672299 Bromoform U 2.87 61.4 1.48 05/18/2021 04:03 WG1672299 Bromomethane U 4.84 30.7 1.48 05/18/2021 04:03 WG1672299 n-Butylbenzene U 12.9 30.7 1.48 05/18/2021 04:03 WG1672299 sec-Butylbenzene U 7.07 30.7 1.48 05/18/2021 04:03 WG1672299 tert-Butylbenzene U 4.79 12.3 1.48 05/18/2021 04:03 WG1672299 Carbon tetrachloride U 2.21 12.3 1.48 05/18/2021 04:03 WG1672299 Chlorobenzene U 0.516 6.14 1.48 05/18/2021 04:03 WG1672299 Chlorodibromomethane U 1.50 6.14 1.48 05/18/2021 04:03 WG1672299 Chloroethane U 4.18 12.3 1.48 05/18/2021 04:03 WG1672299 Chloroform 13.1 2.52 6.14 1.48 05/18/2021 04:03 WG1672299 Chloromethane U 10.7 30.7 1.48 05/18/2021 04:03 WG1672299 2-Chlorotoluene U 2.12 6.14 1.48 05/18/2021 04:03 WG1672299 4-Chlorotoluene U 1.10 12.3 1.48 05/18/2021 04:03 WG1672299 1,2-Dibromo-3-Chloropropane U 9.57 61.4 1.48 05/18/2021 04:03 WG1672299 1,2-Dibromoethane U 1.59 6.14 1.48 05/18/2021 04:03 WG1672299 Dibromomethane U 1.84 12.3 1.48 05/18/2021 04:03 WG1672299 1,2-Dichlorobenzene U 1.04 12.3 1.48 05/18/2021 04:03 WG1672299 1,3-Dichlorobenzene U 1.47 12.3 1.48 05/18/2021 04:03 WG1672299 1,4-Dichlorobenzene U 1.73 12.3 1.48 05/18/2021 04:03 WG1672299 Dichlorodifluoromethane U 3.95 6.14 1.48 05/18/2021 04:03 WG1672299 1,1-Dichloroethane U 1.21 6.14 1.48 05/18/2021 04:03 WG1672299 1,2-Dichloroethane U 1.59 6.14 1.48 05/18/2021 04:03 WG1672299 1,1-Dichloroethene U 1.49 6.14 1.48 05/18/2021 04:03 WG1672299 cis-1,2-Dichloroethene U 1.81 6.14 1.48 05/18/2021 04:03 WG1672299 trans-1,2-Dichloroethene U 2.55 12.3 1.48 05/18/2021 04:03 WG1672299 1,2-Dichloropropane U 3.48 12.3 1.48 05/18/2021 04:03 WG1672299 1,1-Dichloropropene U 1.99 6.14 1.48 05/18/2021 04:03 WG1672299 1,3-Dichloropropane U 1.23 12.3 1.48 05/18/2021 04:03 WG1672299 cis-1,3-Dichloropropene U 1.86 6.14 1.48 05/18/2021 04:03 WG1672299 trans-1,3-Dichloropropene U 2.80 12.3 1.48 05/18/2021 04:03 WG1672299 2,2-Dichloropropane U 3.38 6.14 1.48 05/18/2021 04:03 WG1672299 Di-isopropyl ether U 1.01 2.46 1.48 05/18/2021 04:03 WG1672299 Ethylbenzene U 1.81 6.14 1.48 05/18/2021 04:03 WG1672299 Hexachloro-1,3-butadiene U 14.7 61.4 1.48 05/18/2021 04:03 WG1672299 Isopropylbenzene U 1.04 6.14 1.48 05/18/2021 04:03 WG1672299 p-Isopropyltoluene U 6.25 12.3 1.48 05/18/2021 04:03 WG1672299 2-Butanone (MEK)227 J 156 246 1.48 05/18/2021 04:03 WG1672299 Methylene Chloride U 16.3 61.4 1.48 05/18/2021 04:03 WG1672299 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 32 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 32 of 69 SAMPLE RESULTS - 13 L1352734 S-13 Collected date/time: 05/12/21 11:05 Volatile Organic Compounds (GC/MS) by Method 8260D Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time 4-Methyl-2-pentanone (MIBK)U 5.59 61.4 1.48 05/18/2021 04:03 WG1672299 Methyl tert-butyl ether U 0.859 2.46 1.48 05/18/2021 04:03 WG1672299 Naphthalene U 12.0 30.7 1.48 05/18/2021 04:03 WG1672299 n-Propylbenzene U 2.34 12.3 1.48 05/18/2021 04:03 WG1672299 Styrene U 0.562 30.7 1.48 05/18/2021 04:03 WG1672299 1,1,1,2-Tetrachloroethane U 2.32 6.14 1.48 05/18/2021 04:03 WG1672299 1,1,2,2-Tetrachloroethane U C3 1.71 6.14 1.48 05/18/2021 04:03 WG1672299 Tetrachloroethene U 2.21 6.14 1.48 05/18/2021 04:03 WG1672299 Toluene U 3.19 12.3 1.48 05/18/2021 04:03 WG1672299 1,2,3-Trichlorobenzene U C3 17.9 30.7 1.48 05/18/2021 04:03 WG1672299 1,2,4-Trichlorobenzene U C3 10.8 30.7 1.48 05/18/2021 04:03 WG1672299 1,1,1-Trichloroethane U 2.27 6.14 1.48 05/18/2021 04:03 WG1672299 1,1,2-Trichloroethane U 1.47 6.14 1.48 05/18/2021 04:03 WG1672299 Trichloroethene U 1.43 2.46 1.48 05/18/2021 04:03 WG1672299 Trichlorofluoromethane U 2.02 6.14 1.48 05/18/2021 04:03 WG1672299 1,2,3-Trichloropropane U 3.98 30.7 1.48 05/18/2021 04:03 WG1672299 1,2,4-Trimethylbenzene U 3.88 12.3 1.48 05/18/2021 04:03 WG1672299 1,3,5-Trimethylbenzene U 4.91 12.3 1.48 05/18/2021 04:03 WG1672299 Vinyl chloride U 2.85 6.14 1.48 05/18/2021 04:03 WG1672299 Xylenes, Total U 2.16 16.0 1.48 05/18/2021 04:03 WG1672299 (S) Toluene-d8 112 75.0-131 05/18/2021 04:03 WG1672299 (S) 4-Bromofluorobenzene 95.1 67.0-138 05/18/2021 04:03 WG1672299 (S) 1,2-Dichloroethane-d4 103 70.0-130 05/18/2021 04:03 WG1672299 Semi-Volatile Organic Compounds (GC) by Method 8015C Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time TPH (GC/FID) High Fraction U 1070 5570 1 05/20/2021 11:39 WG1673616 (S) o-Terphenyl 73.3 18.0-148 05/20/2021 11:39 WG1673616 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 33 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 33 of 69 SAMPLE RESULTS - 14 L1352734 S-14 Collected date/time: 05/12/21 11:20 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 73.7 1 05/18/2021 22:07 WG1672934 Volatile Organic Compounds (GC) by Method 8015C Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time TPH (GC/FID) Low Fraction U 1280 5890 36.8 05/17/2021 20:05 WG1671957 (S) a,a,a-Trifluorotoluene(FID)97.1 77.0-120 05/17/2021 20:05 WG1671957 Volatile Organic Compounds (GC/MS) by Method 8260D Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time Acetone U 87.7 120 1.51 05/18/2021 04:22 WG1672299 Acrylonitrile U 8.68 30.1 1.51 05/18/2021 04:22 WG1672299 Benzene U 1.12 2.40 1.51 05/18/2021 04:22 WG1672299 Bromobenzene U 2.17 30.1 1.51 05/18/2021 04:22 WG1672299 Bromodichloromethane U 1.74 6.02 1.51 05/18/2021 04:22 WG1672299 Bromoform U 2.82 60.2 1.51 05/18/2021 04:22 WG1672299 Bromomethane U 4.73 30.1 1.51 05/18/2021 04:22 WG1672299 n-Butylbenzene U 12.6 30.1 1.51 05/18/2021 04:22 WG1672299 sec-Butylbenzene U 6.93 30.1 1.51 05/18/2021 04:22 WG1672299 tert-Butylbenzene U 4.68 12.0 1.51 05/18/2021 04:22 WG1672299 Carbon tetrachloride U 2.17 12.0 1.51 05/18/2021 04:22 WG1672299 Chlorobenzene U 0.505 6.02 1.51 05/18/2021 04:22 WG1672299 Chlorodibromomethane U 1.47 6.02 1.51 05/18/2021 04:22 WG1672299 Chloroethane U 4.09 12.0 1.51 05/18/2021 04:22 WG1672299 Chloroform 13.6 2.48 6.02 1.51 05/18/2021 04:22 WG1672299 Chloromethane U 10.5 30.1 1.51 05/18/2021 04:22 WG1672299 2-Chlorotoluene U 2.09 6.02 1.51 05/18/2021 04:22 WG1672299 4-Chlorotoluene U 1.08 12.0 1.51 05/18/2021 04:22 WG1672299 1,2-Dibromo-3-Chloropropane U 9.38 60.2 1.51 05/18/2021 04:22 WG1672299 1,2-Dibromoethane U 1.56 6.02 1.51 05/18/2021 04:22 WG1672299 Dibromomethane U 1.80 12.0 1.51 05/18/2021 04:22 WG1672299 1,2-Dichlorobenzene U 1.02 12.0 1.51 05/18/2021 04:22 WG1672299 1,3-Dichlorobenzene U 1.44 12.0 1.51 05/18/2021 04:22 WG1672299 1,4-Dichlorobenzene U 1.69 12.0 1.51 05/18/2021 04:22 WG1672299 Dichlorodifluoromethane U 3.87 6.02 1.51 05/18/2021 04:22 WG1672299 1,1-Dichloroethane U 1.18 6.02 1.51 05/18/2021 04:22 WG1672299 1,2-Dichloroethane U 1.56 6.02 1.51 05/18/2021 04:22 WG1672299 1,1-Dichloroethene U 1.46 6.02 1.51 05/18/2021 04:22 WG1672299 cis-1,2-Dichloroethene U 1.77 6.02 1.51 05/18/2021 04:22 WG1672299 trans-1,2-Dichloroethene U 2.50 12.0 1.51 05/18/2021 04:22 WG1672299 1,2-Dichloropropane U 3.41 12.0 1.51 05/18/2021 04:22 WG1672299 1,1-Dichloropropene U 1.94 6.02 1.51 05/18/2021 04:22 WG1672299 1,3-Dichloropropane U 1.21 12.0 1.51 05/18/2021 04:22 WG1672299 cis-1,3-Dichloropropene U 1.81 6.02 1.51 05/18/2021 04:22 WG1672299 trans-1,3-Dichloropropene U 2.74 12.0 1.51 05/18/2021 04:22 WG1672299 2,2-Dichloropropane U 3.31 6.02 1.51 05/18/2021 04:22 WG1672299 Di-isopropyl ether U 0.986 2.40 1.51 05/18/2021 04:22 WG1672299 Ethylbenzene U 1.77 6.02 1.51 05/18/2021 04:22 WG1672299 Hexachloro-1,3-butadiene U 14.4 60.2 1.51 05/18/2021 04:22 WG1672299 Isopropylbenzene U 1.02 6.02 1.51 05/18/2021 04:22 WG1672299 p-Isopropyltoluene U 6.13 12.0 1.51 05/18/2021 04:22 WG1672299 2-Butanone (MEK)272 C5 153 240 1.51 05/18/2021 04:22 WG1672299 Methylene Chloride U 15.9 60.2 1.51 05/18/2021 04:22 WG1672299 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 34 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 34 of 69 SAMPLE RESULTS - 14 L1352734 S-14 Collected date/time: 05/12/21 11:20 Volatile Organic Compounds (GC/MS) by Method 8260D Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time 4-Methyl-2-pentanone (MIBK)U 5.48 60.2 1.51 05/18/2021 04:22 WG1672299 Methyl tert-butyl ether U 0.842 2.40 1.51 05/18/2021 04:22 WG1672299 Naphthalene U 11.7 30.1 1.51 05/18/2021 04:22 WG1672299 n-Propylbenzene U 2.28 12.0 1.51 05/18/2021 04:22 WG1672299 Styrene U 0.551 30.1 1.51 05/18/2021 04:22 WG1672299 1,1,1,2-Tetrachloroethane U 2.28 6.02 1.51 05/18/2021 04:22 WG1672299 1,1,2,2-Tetrachloroethane U C3 1.67 6.02 1.51 05/18/2021 04:22 WG1672299 Tetrachloroethene U 2.15 6.02 1.51 05/18/2021 04:22 WG1672299 Toluene U 3.12 12.0 1.51 05/18/2021 04:22 WG1672299 1,2,3-Trichlorobenzene U C3 17.7 30.1 1.51 05/18/2021 04:22 WG1672299 1,2,4-Trichlorobenzene U C3 10.6 30.1 1.51 05/18/2021 04:22 WG1672299 1,1,1-Trichloroethane U 2.21 6.02 1.51 05/18/2021 04:22 WG1672299 1,1,2-Trichloroethane U 1.43 6.02 1.51 05/18/2021 04:22 WG1672299 Trichloroethene U 1.40 2.40 1.51 05/18/2021 04:22 WG1672299 Trichlorofluoromethane U 1.99 6.02 1.51 05/18/2021 04:22 WG1672299 1,2,3-Trichloropropane U 3.90 30.1 1.51 05/18/2021 04:22 WG1672299 1,2,4-Trimethylbenzene U 3.81 12.0 1.51 05/18/2021 04:22 WG1672299 1,3,5-Trimethylbenzene U 4.81 12.0 1.51 05/18/2021 04:22 WG1672299 Vinyl chloride U 2.79 6.02 1.51 05/18/2021 04:22 WG1672299 Xylenes, Total U 2.12 15.6 1.51 05/18/2021 04:22 WG1672299 (S) Toluene-d8 114 75.0-131 05/18/2021 04:22 WG1672299 (S) 4-Bromofluorobenzene 96.6 67.0-138 05/18/2021 04:22 WG1672299 (S) 1,2-Dichloroethane-d4 102 70.0-130 05/18/2021 04:22 WG1672299 Semi-Volatile Organic Compounds (GC) by Method 8015C Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time TPH (GC/FID) High Fraction 1130 J 1040 5430 1 05/20/2021 12:33 WG1673616 (S) o-Terphenyl 59.3 18.0-148 05/20/2021 12:33 WG1673616 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 35 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 35 of 69 SAMPLE RESULTS - 15 L1352734 S-15 Collected date/time: 05/12/21 11:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 85.4 1 05/18/2021 22:07 WG1672934 Volatile Organic Compounds (GC) by Method 8015C Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time TPH (GC/FID) Low Fraction U 1030 4730 36.8 05/17/2021 20:27 WG1671957 (S) a,a,a-Trifluorotoluene(FID)98.8 77.0-120 05/17/2021 20:27 WG1671957 Volatile Organic Compounds (GC/MS) by Method 8260D Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time Acetone U J4 61.8 84.6 1.3 05/20/2021 09:13 WG1673298 Acrylonitrile U 6.10 21.2 1.3 05/20/2021 09:13 WG1673298 Benzene U 0.790 1.69 1.3 05/20/2021 09:13 WG1673298 Bromobenzene U 1.52 21.2 1.3 05/20/2021 09:13 WG1673298 Bromodichloromethane U 1.23 4.23 1.3 05/20/2021 09:13 WG1673298 Bromoform U 1.98 42.3 1.3 05/20/2021 09:13 WG1673298 Bromomethane U 3.33 21.2 1.3 05/20/2021 09:13 WG1673298 n-Butylbenzene U 8.89 21.2 1.3 05/20/2021 09:13 WG1673298 sec-Butylbenzene U 4.87 21.2 1.3 05/20/2021 09:13 WG1673298 tert-Butylbenzene U 3.29 8.46 1.3 05/20/2021 09:13 WG1673298 Carbon tetrachloride U 1.52 8.46 1.3 05/20/2021 09:13 WG1673298 Chlorobenzene U 0.355 4.23 1.3 05/20/2021 09:13 WG1673298 Chlorodibromomethane U 1.04 4.23 1.3 05/20/2021 09:13 WG1673298 Chloroethane U 2.88 8.46 1.3 05/20/2021 09:13 WG1673298 Chloroform U 1.74 4.23 1.3 05/20/2021 09:13 WG1673298 Chloromethane U 7.36 21.2 1.3 05/20/2021 09:13 WG1673298 2-Chlorotoluene U 1.46 4.23 1.3 05/20/2021 09:13 WG1673298 4-Chlorotoluene U 0.761 8.46 1.3 05/20/2021 09:13 WG1673298 1,2-Dibromo-3-Chloropropane U 6.60 42.3 1.3 05/20/2021 09:13 WG1673298 1,2-Dibromoethane U 1.10 4.23 1.3 05/20/2021 09:13 WG1673298 Dibromomethane U 1.27 8.46 1.3 05/20/2021 09:13 WG1673298 1,2-Dichlorobenzene U 0.719 8.46 1.3 05/20/2021 09:13 WG1673298 1,3-Dichlorobenzene U 1.01 8.46 1.3 05/20/2021 09:13 WG1673298 1,4-Dichlorobenzene U 1.18 8.46 1.3 05/20/2021 09:13 WG1673298 Dichlorodifluoromethane U 2.72 4.23 1.3 05/20/2021 09:13 WG1673298 1,1-Dichloroethane U 0.830 4.23 1.3 05/20/2021 09:13 WG1673298 1,2-Dichloroethane U 1.10 4.23 1.3 05/20/2021 09:13 WG1673298 1,1-Dichloroethene U 1.03 4.23 1.3 05/20/2021 09:13 WG1673298 cis-1,2-Dichloroethene U 1.24 4.23 1.3 05/20/2021 09:13 WG1673298 trans-1,2-Dichloroethene U 1.76 8.46 1.3 05/20/2021 09:13 WG1673298 1,2-Dichloropropane U 2.41 8.46 1.3 05/20/2021 09:13 WG1673298 1,1-Dichloropropene U 1.37 4.23 1.3 05/20/2021 09:13 WG1673298 1,3-Dichloropropane U 0.847 8.46 1.3 05/20/2021 09:13 WG1673298 cis-1,3-Dichloropropene U 1.28 4.23 1.3 05/20/2021 09:13 WG1673298 trans-1,3-Dichloropropene U 1.93 8.46 1.3 05/20/2021 09:13 WG1673298 2,2-Dichloropropane U 2.33 4.23 1.3 05/20/2021 09:13 WG1673298 Di-isopropyl ether U 0.693 1.69 1.3 05/20/2021 09:13 WG1673298 Ethylbenzene U 1.25 4.23 1.3 05/20/2021 09:13 WG1673298 Hexachloro-1,3-butadiene U C3 10.1 42.3 1.3 05/20/2021 09:13 WG1673298 Isopropylbenzene U 0.719 4.23 1.3 05/20/2021 09:13 WG1673298 p-Isopropyltoluene U 4.32 8.46 1.3 05/20/2021 09:13 WG1673298 2-Butanone (MEK)U 107 169 1.3 05/20/2021 09:13 WG1673298 Methylene Chloride U 11.2 42.3 1.3 05/20/2021 09:13 WG1673298 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 36 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 36 of 69 SAMPLE RESULTS - 15 L1352734 S-15 Collected date/time: 05/12/21 11:30 Volatile Organic Compounds (GC/MS) by Method 8260D Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time 4-Methyl-2-pentanone (MIBK)U 3.85 42.3 1.3 05/20/2021 09:13 WG1673298 Methyl tert-butyl ether U 0.592 1.69 1.3 05/20/2021 09:13 WG1673298 Naphthalene U C3 8.25 21.2 1.3 05/20/2021 09:13 WG1673298 n-Propylbenzene U 1.60 8.46 1.3 05/20/2021 09:13 WG1673298 Styrene 1.18 B J 0.388 21.2 1.3 05/20/2021 09:13 WG1673298 1,1,1,2-Tetrachloroethane U 1.60 4.23 1.3 05/20/2021 09:13 WG1673298 1,1,2,2-Tetrachloroethane U 1.18 4.23 1.3 05/20/2021 09:13 WG1673298 Tetrachloroethene U 1.51 4.23 1.3 05/20/2021 09:13 WG1673298 Toluene 2.41 J 2.20 8.46 1.3 05/20/2021 09:13 WG1673298 1,2,3-Trichlorobenzene U C4 J4 12.4 21.2 1.3 05/20/2021 09:13 WG1673298 1,2,4-Trichlorobenzene U C3 7.44 21.2 1.3 05/20/2021 09:13 WG1673298 1,1,1-Trichloroethane U 1.56 4.23 1.3 05/20/2021 09:13 WG1673298 1,1,2-Trichloroethane U 1.01 4.23 1.3 05/20/2021 09:13 WG1673298 Trichloroethene U 0.987 1.69 1.3 05/20/2021 09:13 WG1673298 Trichlorofluoromethane U C3 1.41 4.23 1.3 05/20/2021 09:13 WG1673298 1,2,3-Trichloropropane U 2.75 21.2 1.3 05/20/2021 09:13 WG1673298 1,2,4-Trimethylbenzene U 2.67 8.46 1.3 05/20/2021 09:13 WG1673298 1,3,5-Trimethylbenzene U 3.38 8.46 1.3 05/20/2021 09:13 WG1673298 Vinyl chloride U 1.96 4.23 1.3 05/20/2021 09:13 WG1673298 Xylenes, Total 1.86 B J 1.48 11.0 1.3 05/20/2021 09:13 WG1673298 (S) Toluene-d8 104 75.0-131 05/20/2021 09:13 WG1673298 (S) 4-Bromofluorobenzene 88.4 67.0-138 05/20/2021 09:13 WG1673298 (S) 1,2-Dichloroethane-d4 69.7 J2 70.0-130 05/20/2021 09:13 WG1673298 Semi-Volatile Organic Compounds (GC) by Method 8015C Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time TPH (GC/FID) High Fraction 2360 J 900 4680 1 05/20/2021 12:20 WG1673616 (S) o-Terphenyl 71.4 18.0-148 05/20/2021 12:20 WG1673616 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 37 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 37 of 69 SAMPLE RESULTS - 16 L1352734 S-16 Collected date/time: 05/12/21 11:40 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 77.3 1 05/18/2021 22:07 WG1672934 Volatile Organic Compounds (GC) by Method 8015C Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time TPH (GC/FID) Low Fraction U 1020 4680 30.5 05/17/2021 20:49 WG1671957 (S) a,a,a-Trifluorotoluene(FID)96.4 77.0-120 05/17/2021 20:49 WG1671957 Volatile Organic Compounds (GC/MS) by Method 8260D Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time Acetone U 84.8 116 1.57 05/19/2021 04:02 WG1672940 Acrylonitrile U 8.39 29.0 1.57 05/19/2021 04:02 WG1672940 Benzene U 1.08 2.32 1.57 05/19/2021 04:02 WG1672940 Bromobenzene U 2.09 29.0 1.57 05/19/2021 04:02 WG1672940 Bromodichloromethane U 1.69 5.82 1.57 05/19/2021 04:02 WG1672940 Bromoform U 2.72 58.2 1.57 05/19/2021 04:02 WG1672940 Bromomethane U 4.57 29.0 1.57 05/19/2021 04:02 WG1672940 n-Butylbenzene U 12.2 29.0 1.57 05/19/2021 04:02 WG1672940 sec-Butylbenzene U 6.69 29.0 1.57 05/19/2021 04:02 WG1672940 tert-Butylbenzene U 4.53 11.6 1.57 05/19/2021 04:02 WG1672940 Carbon tetrachloride U 2.09 11.6 1.57 05/19/2021 04:02 WG1672940 Chlorobenzene U 0.488 5.82 1.57 05/19/2021 04:02 WG1672940 Chlorodibromomethane U 1.42 5.82 1.57 05/19/2021 04:02 WG1672940 Chloroethane U 3.95 11.6 1.57 05/19/2021 04:02 WG1672940 Chloroform 3.83 J 2.40 5.82 1.57 05/19/2021 04:02 WG1672940 Chloromethane U 10.1 29.0 1.57 05/19/2021 04:02 WG1672940 2-Chlorotoluene U 2.01 5.82 1.57 05/19/2021 04:02 WG1672940 4-Chlorotoluene U 1.05 11.6 1.57 05/19/2021 04:02 WG1672940 1,2-Dibromo-3-Chloropropane U 9.06 58.2 1.57 05/19/2021 04:02 WG1672940 1,2-Dibromoethane U 1.51 5.82 1.57 05/19/2021 04:02 WG1672940 Dibromomethane U 1.75 11.6 1.57 05/19/2021 04:02 WG1672940 1,2-Dichlorobenzene U 0.987 11.6 1.57 05/19/2021 04:02 WG1672940 1,3-Dichlorobenzene U 1.39 11.6 1.57 05/19/2021 04:02 WG1672940 1,4-Dichlorobenzene U 1.63 11.6 1.57 05/19/2021 04:02 WG1672940 Dichlorodifluoromethane U 3.74 5.82 1.57 05/19/2021 04:02 WG1672940 1,1-Dichloroethane U 1.14 5.82 1.57 05/19/2021 04:02 WG1672940 1,2-Dichloroethane U 1.51 5.82 1.57 05/19/2021 04:02 WG1672940 1,1-Dichloroethene U 1.41 5.82 1.57 05/19/2021 04:02 WG1672940 cis-1,2-Dichloroethene 2.26 J 1.70 5.82 1.57 05/19/2021 04:02 WG1672940 trans-1,2-Dichloroethene U 2.41 11.6 1.57 05/19/2021 04:02 WG1672940 1,2-Dichloropropane U 3.30 11.6 1.57 05/19/2021 04:02 WG1672940 1,1-Dichloropropene U 1.88 5.82 1.57 05/19/2021 04:02 WG1672940 1,3-Dichloropropane U 1.16 11.6 1.57 05/19/2021 04:02 WG1672940 cis-1,3-Dichloropropene U 1.76 5.82 1.57 05/19/2021 04:02 WG1672940 trans-1,3-Dichloropropene U 2.65 11.6 1.57 05/19/2021 04:02 WG1672940 2,2-Dichloropropane U 3.21 5.82 1.57 05/19/2021 04:02 WG1672940 Di-isopropyl ether U 0.953 2.32 1.57 05/19/2021 04:02 WG1672940 Ethylbenzene U 1.72 5.82 1.57 05/19/2021 04:02 WG1672940 Hexachloro-1,3-butadiene U 13.9 58.2 1.57 05/19/2021 04:02 WG1672940 Isopropylbenzene U 0.987 5.82 1.57 05/19/2021 04:02 WG1672940 p-Isopropyltoluene U 5.92 11.6 1.57 05/19/2021 04:02 WG1672940 2-Butanone (MEK)U 148 232 1.57 05/19/2021 04:02 WG1672940 Methylene Chloride U 15.4 58.2 1.57 05/19/2021 04:02 WG1672940 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 38 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 38 of 69 SAMPLE RESULTS - 16 L1352734 S-16 Collected date/time: 05/12/21 11:40 Volatile Organic Compounds (GC/MS) by Method 8260D Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time 4-Methyl-2-pentanone (MIBK)U 5.30 58.2 1.57 05/19/2021 04:02 WG1672940 Methyl tert-butyl ether U 0.814 2.32 1.57 05/19/2021 04:02 WG1672940 Naphthalene U J3 11.3 29.0 1.57 05/19/2021 04:02 WG1672940 n-Propylbenzene U 2.21 11.6 1.57 05/19/2021 04:02 WG1672940 Styrene U 0.533 29.0 1.57 05/19/2021 04:02 WG1672940 1,1,1,2-Tetrachloroethane U 2.21 5.82 1.57 05/19/2021 04:02 WG1672940 1,1,2,2-Tetrachloroethane U C3 1.61 5.82 1.57 05/19/2021 04:02 WG1672940 Tetrachloroethene U 2.09 5.82 1.57 05/19/2021 04:02 WG1672940 Toluene U 3.02 11.6 1.57 05/19/2021 04:02 WG1672940 1,2,3-Trichlorobenzene U C4 J3 17.0 29.0 1.57 05/19/2021 04:02 WG1672940 1,2,4-Trichlorobenzene U C4 J3 10.2 29.0 1.57 05/19/2021 04:02 WG1672940 1,1,1-Trichloroethane U 2.15 5.82 1.57 05/19/2021 04:02 WG1672940 1,1,2-Trichloroethane U 1.39 5.82 1.57 05/19/2021 04:02 WG1672940 Trichloroethene U 1.36 2.32 1.57 05/19/2021 04:02 WG1672940 Trichlorofluoromethane U 1.92 5.82 1.57 05/19/2021 04:02 WG1672940 1,2,3-Trichloropropane U 3.76 29.0 1.57 05/19/2021 04:02 WG1672940 1,2,4-Trimethylbenzene U 3.67 11.6 1.57 05/19/2021 04:02 WG1672940 1,3,5-Trimethylbenzene U 4.65 11.6 1.57 05/19/2021 04:02 WG1672940 Vinyl chloride U 2.69 5.82 1.57 05/19/2021 04:02 WG1672940 Xylenes, Total U 2.04 15.1 1.57 05/19/2021 04:02 WG1672940 (S) Toluene-d8 104 75.0-131 05/19/2021 04:02 WG1672940 (S) 4-Bromofluorobenzene 109 67.0-138 05/19/2021 04:02 WG1672940 (S) 1,2-Dichloroethane-d4 97.1 70.0-130 05/19/2021 04:02 WG1672940 Semi-Volatile Organic Compounds (GC) by Method 8015C Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time TPH (GC/FID) High Fraction 20300 995 5170 1 05/20/2021 13:29 WG1673616 (S) o-Terphenyl 65.5 18.0-148 05/20/2021 13:29 WG1673616 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 39 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 39 of 69 SAMPLE RESULTS - 17 L1352734 S-17 Collected date/time: 05/12/21 11:50 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 71.6 1 05/18/2021 21:59 WG1672935 Volatile Organic Compounds (GC) by Method 8015C Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time TPH (GC/FID) Low Fraction U 1300 6000 35.8 05/17/2021 21:11 WG1671957 (S) a,a,a-Trifluorotoluene(FID)96.6 77.0-120 05/17/2021 21:11 WG1671957 Volatile Organic Compounds (GC/MS) by Method 8260D Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time Acetone U J4 88.4 121 1.45 05/20/2021 09:32 WG1673298 Acrylonitrile U 8.74 30.2 1.45 05/20/2021 09:32 WG1673298 Benzene U 1.13 2.42 1.45 05/20/2021 09:32 WG1673298 Bromobenzene U 2.19 30.2 1.45 05/20/2021 09:32 WG1673298 Bromodichloromethane U 1.75 6.06 1.45 05/20/2021 09:32 WG1673298 Bromoform U 2.84 60.6 1.45 05/20/2021 09:32 WG1673298 Bromomethane U 4.78 30.2 1.45 05/20/2021 09:32 WG1673298 n-Butylbenzene U 12.7 30.2 1.45 05/20/2021 09:32 WG1673298 sec-Butylbenzene U 6.98 30.2 1.45 05/20/2021 09:32 WG1673298 tert-Butylbenzene U 4.73 12.1 1.45 05/20/2021 09:32 WG1673298 Carbon tetrachloride U 2.17 12.1 1.45 05/20/2021 09:32 WG1673298 Chlorobenzene U 0.510 6.06 1.45 05/20/2021 09:32 WG1673298 Chlorodibromomethane U 1.48 6.06 1.45 05/20/2021 09:32 WG1673298 Chloroethane U 4.13 12.1 1.45 05/20/2021 09:32 WG1673298 Chloroform 13.4 2.49 6.06 1.45 05/20/2021 09:32 WG1673298 Chloromethane U 10.5 30.2 1.45 05/20/2021 09:32 WG1673298 2-Chlorotoluene U 2.09 6.06 1.45 05/20/2021 09:32 WG1673298 4-Chlorotoluene U 1.09 12.1 1.45 05/20/2021 09:32 WG1673298 1,2-Dibromo-3-Chloropropane U 9.46 60.6 1.45 05/20/2021 09:32 WG1673298 1,2-Dibromoethane U 1.57 6.06 1.45 05/20/2021 09:32 WG1673298 Dibromomethane U 1.82 12.1 1.45 05/20/2021 09:32 WG1673298 1,2-Dichlorobenzene U 1.03 12.1 1.45 05/20/2021 09:32 WG1673298 1,3-Dichlorobenzene U 1.45 12.1 1.45 05/20/2021 09:32 WG1673298 1,4-Dichlorobenzene U 1.70 12.1 1.45 05/20/2021 09:32 WG1673298 Dichlorodifluoromethane U 3.89 6.06 1.45 05/20/2021 09:32 WG1673298 1,1-Dichloroethane U 1.19 6.06 1.45 05/20/2021 09:32 WG1673298 1,2-Dichloroethane U 1.57 6.06 1.45 05/20/2021 09:32 WG1673298 1,1-Dichloroethene U 1.47 6.06 1.45 05/20/2021 09:32 WG1673298 cis-1,2-Dichloroethene U 1.77 6.06 1.45 05/20/2021 09:32 WG1673298 trans-1,2-Dichloroethene U 2.52 12.1 1.45 05/20/2021 09:32 WG1673298 1,2-Dichloropropane U 3.44 12.1 1.45 05/20/2021 09:32 WG1673298 1,1-Dichloropropene U 1.95 6.06 1.45 05/20/2021 09:32 WG1673298 1,3-Dichloropropane U 1.21 12.1 1.45 05/20/2021 09:32 WG1673298 cis-1,3-Dichloropropene U 1.84 6.06 1.45 05/20/2021 09:32 WG1673298 trans-1,3-Dichloropropene U 2.76 12.1 1.45 05/20/2021 09:32 WG1673298 2,2-Dichloropropane U 3.34 6.06 1.45 05/20/2021 09:32 WG1673298 Di-isopropyl ether U 0.992 2.42 1.45 05/20/2021 09:32 WG1673298 Ethylbenzene U 1.79 6.06 1.45 05/20/2021 09:32 WG1673298 Hexachloro-1,3-butadiene U C3 14.5 60.6 1.45 05/20/2021 09:32 WG1673298 Isopropylbenzene 1.15 J 1.03 6.06 1.45 05/20/2021 09:32 WG1673298 p-Isopropyltoluene U 6.18 12.1 1.45 05/20/2021 09:32 WG1673298 2-Butanone (MEK)U 154 242 1.45 05/20/2021 09:32 WG1673298 Methylene Chloride U 16.1 60.6 1.45 05/20/2021 09:32 WG1673298 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 40 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 40 of 69 SAMPLE RESULTS - 17 L1352734 S-17 Collected date/time: 05/12/21 11:50 Volatile Organic Compounds (GC/MS) by Method 8260D Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time 4-Methyl-2-pentanone (MIBK)U 5.53 60.6 1.45 05/20/2021 09:32 WG1673298 Methyl tert-butyl ether U 0.849 2.42 1.45 05/20/2021 09:32 WG1673298 Naphthalene U C3 11.8 30.2 1.45 05/20/2021 09:32 WG1673298 n-Propylbenzene 3.21 J 2.31 12.1 1.45 05/20/2021 09:32 WG1673298 Styrene 1.03 B J 0.555 30.2 1.45 05/20/2021 09:32 WG1673298 1,1,1,2-Tetrachloroethane U 2.29 6.06 1.45 05/20/2021 09:32 WG1673298 1,1,2,2-Tetrachloroethane U 1.69 6.06 1.45 05/20/2021 09:32 WG1673298 Tetrachloroethene U 2.17 6.06 1.45 05/20/2021 09:32 WG1673298 Toluene U 3.16 12.1 1.45 05/20/2021 09:32 WG1673298 1,2,3-Trichlorobenzene U C4 J4 17.7 30.2 1.45 05/20/2021 09:32 WG1673298 1,2,4-Trichlorobenzene U C3 10.7 30.2 1.45 05/20/2021 09:32 WG1673298 1,1,1-Trichloroethane U 2.24 6.06 1.45 05/20/2021 09:32 WG1673298 1,1,2-Trichloroethane U 1.45 6.06 1.45 05/20/2021 09:32 WG1673298 Trichloroethene U 1.42 2.42 1.45 05/20/2021 09:32 WG1673298 Trichlorofluoromethane U C3 2.00 6.06 1.45 05/20/2021 09:32 WG1673298 1,2,3-Trichloropropane U 3.93 30.2 1.45 05/20/2021 09:32 WG1673298 1,2,4-Trimethylbenzene 29.2 B 3.83 12.1 1.45 05/20/2021 09:32 WG1673298 1,3,5-Trimethylbenzene 7.50 J 4.85 12.1 1.45 05/20/2021 09:32 WG1673298 Vinyl chloride U 2.81 6.06 1.45 05/20/2021 09:32 WG1673298 Xylenes, Total 11.9 B J 2.14 15.8 1.45 05/20/2021 09:32 WG1673298 (S) Toluene-d8 106 75.0-131 05/20/2021 09:32 WG1673298 (S) 4-Bromofluorobenzene 89.4 67.0-138 05/20/2021 09:32 WG1673298 (S) 1,2-Dichloroethane-d4 76.4 70.0-130 05/20/2021 09:32 WG1673298 Semi-Volatile Organic Compounds (GC) by Method 8015C Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time TPH (GC/FID) High Fraction 29300 1070 5590 1 05/20/2021 11:52 WG1673616 (S) o-Terphenyl 59.9 18.0-148 05/20/2021 11:52 WG1673616 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 41 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 41 of 69 QUALITY CONTROL SUMMARYWG1672933 Total Solids by Method 2540 G-2011 L1352734-01,02,03,04,05,06 Method Blank (MB) (MB) R3656448-1 05/18/21 22:17 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00200 L1352710-06 Original Sample (OS) • Duplicate (DUP) (OS) L1352710-06 05/18/21 22:17 • (DUP) R3656448-3 05/18/21 22:17 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 87.1 87.0 1 0.0709 10 Laboratory Control Sample (LCS) (LCS) R3656448-2 05/18/21 22:17 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 85.0-115 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 42 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 42 of 69 QUALITY CONTROL SUMMARYWG1672934 Total Solids by Method 2540 G-2011 L1352734-07,08,09,10,11,12,13,14,15,16 Method Blank (MB) (MB) R3656443-1 05/18/21 22:07 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 L1352734-10 Original Sample (OS) • Duplicate (DUP) (OS) L1352734-10 05/18/21 22:07 • (DUP) R3656443-3 05/18/21 22:07 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 83.3 82.4 1 1.04 10 Laboratory Control Sample (LCS) (LCS) R3656443-2 05/18/21 22:07 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 85.0-115 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 43 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 43 of 69 QUALITY CONTROL SUMMARYWG1672935 Total Solids by Method 2540 G-2011 L1352734-17 Method Blank (MB) (MB) R3656436-1 05/18/21 21:59 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00200 L1352812-03 Original Sample (OS) • Duplicate (DUP) (OS) L1352812-03 05/18/21 21:59 • (DUP) R3656436-3 05/18/21 21:59 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 77.2 74.9 1 2.94 10 Laboratory Control Sample (LCS) (LCS) R3656436-2 05/18/21 21:59 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 85.0-115 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 44 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 44 of 69 QUALITY CONTROL SUMMARYWG1671953 Volatile Organic Compounds (GC) by Method 8015C L1352734-01,02,03,04,05,06,07,08,09 Method Blank (MB) (MB) R3658559-2 05/17/21 11:39 MB Result MB Qualifier MB MDL MB RDL Analyte ug/kg ug/kg ug/kg TPH (GC/FID) Low Fraction U 21.7 100 (S) a,a,a-Trifluorotoluene(FID)98.4 77.0-120 Laboratory Control Sample (LCS) (LCS) R3658559-1 05/17/21 10:52 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte ug/kg ug/kg %% TPH (GC/FID) Low Fraction 5500 4950 90.0 72.0-127 (S) a,a,a-Trifluorotoluene(FID) 108 77.0-120 L1352734-09 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1352734-09 05/17/21 20:01 • (MS) R3658559-3 05/17/21 20:25 • (MSD) R3658559-4 05/17/21 20:49 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte ug/kg ug/kg ug/kg ug/kg %%%%% TPH (GC/FID) Low Fraction 314000 1290 324000 303000 103 96.1 36.5 10.0-151 6.97 28 (S) a,a,a-Trifluorotoluene(FID) 103 109 77.0-120 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 45 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 45 of 69 QUALITY CONTROL SUMMARYWG1671957 Volatile Organic Compounds (GC) by Method 8015C L1352734-10,11,12,13,14,15,16,17 Method Blank (MB) (MB) R3658219-2 05/17/21 13:14 MB Result MB Qualifier MB MDL MB RDL Analyte ug/kg ug/kg ug/kg TPH (GC/FID) Low Fraction U 21.7 100 (S) a,a,a-Trifluorotoluene(FID)97.3 77.0-120 Laboratory Control Sample (LCS) (LCS) R3658219-1 05/17/21 12:30 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte ug/kg ug/kg %% TPH (GC/FID) Low Fraction 5500 5940 108 72.0-127 (S) a,a,a-Trifluorotoluene(FID) 112 77.0-120 L1352734-17 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1352734-17 05/17/21 21:11 • (MS) R3658219-3 05/17/21 21:33 • (MSD) R3658219-4 05/17/21 21:55 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte ug/kg ug/kg ug/kg ug/kg %%%%% TPH (GC/FID) Low Fraction 330000 U 367000 365000 111 111 35.8 10.0-151 0.458 28 (S) a,a,a-Trifluorotoluene(FID) 98.6 98.3 77.0-120 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 46 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 46 of 69 QUALITY CONTROL SUMMARYWG1672299 Volatile Organic Compounds (GC/MS) by Method 8260D L1352734-01,02,03,04,05,06,07,08,09,10,11,12,13,14 Method Blank (MB) (MB) R3656810-2 05/17/21 20:21 MB Result MB Qualifier MB MDL MB RDL Analyte ug/kg ug/kg ug/kg Acetone U 36.5 50.0 Acrylonitrile U 3.61 12.5 Benzene U 0.467 1.00 Bromobenzene U 0.900 12.5 Bromodichloromethane U 0.725 2.50 Bromoform U 1.17 25.0 Bromomethane U 1.97 12.5 n-Butylbenzene U 5.25 12.5 sec-Butylbenzene U 2.88 12.5 tert-Butylbenzene U 1.95 5.00 Carbon tetrachloride U 0.898 5.00 Chlorobenzene U 0.210 2.50 Chlorodibromomethane U 0.612 2.50 Chloroethane U 1.70 5.00 Chloroform U 1.03 2.50 Chloromethane U 4.35 12.5 2-Chlorotoluene U 0.865 2.50 4-Chlorotoluene U 0.450 5.00 1,2-Dibromo-3-Chloropropane U 3.90 25.0 1,2-Dibromoethane U 0.648 2.50 Dibromomethane U 0.750 5.00 1,2-Dichlorobenzene U 0.425 5.00 1,3-Dichlorobenzene U 0.600 5.00 1,4-Dichlorobenzene U 0.700 5.00 Dichlorodifluoromethane U 1.61 2.50 1,1-Dichloroethane U 0.491 2.50 1,2-Dichloroethane U 0.649 2.50 1,1-Dichloroethene U 0.606 2.50 cis-1,2-Dichloroethene U 0.734 2.50 trans-1,2-Dichloroethene U 1.04 5.00 1,2-Dichloropropane U 1.42 5.00 1,1-Dichloropropene U 0.809 2.50 1,3-Dichloropropane U 0.501 5.00 cis-1,3-Dichloropropene U 0.757 2.50 trans-1,3-Dichloropropene U 1.14 5.00 2,2-Dichloropropane U 1.38 2.50 Di-isopropyl ether U 0.410 1.00 Ethylbenzene U 0.737 2.50 Hexachloro-1,3-butadiene U 6.00 25.0 Isopropylbenzene U 0.425 2.50 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 47 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 47 of 69 QUALITY CONTROL SUMMARYWG1672299 Volatile Organic Compounds (GC/MS) by Method 8260D L1352734-01,02,03,04,05,06,07,08,09,10,11,12,13,14 Method Blank (MB) (MB) R3656810-2 05/17/21 20:21 MB Result MB Qualifier MB MDL MB RDL Analyte ug/kg ug/kg ug/kg p-Isopropyltoluene U 2.55 5.00 2-Butanone (MEK)U 63.5 100 Methylene Chloride U 6.64 25.0 4-Methyl-2-pentanone (MIBK)U 2.28 25.0 Methyl tert-butyl ether U 0.350 1.00 Naphthalene U 4.88 12.5 n-Propylbenzene U 0.950 5.00 Styrene U 0.229 12.5 1,1,1,2-Tetrachloroethane U 0.948 2.50 1,1,2,2-Tetrachloroethane U 0.695 2.50 Tetrachloroethene U 0.896 2.50 Toluene U 1.30 5.00 1,2,3-Trichlorobenzene U 7.33 12.5 1,2,4-Trichlorobenzene U 4.40 12.5 1,1,1-Trichloroethane U 0.923 2.50 1,1,2-Trichloroethane U 0.597 2.50 Trichloroethene U 0.584 1.00 Trichlorofluoromethane U 0.827 2.50 1,2,3-Trichloropropane U 1.62 12.5 1,2,4-Trimethylbenzene U 1.58 5.00 1,3,5-Trimethylbenzene U 2.00 5.00 Vinyl chloride U 1.16 2.50 Xylenes, Total U 0.880 6.50 (S) Toluene-d8 112 75.0-131 (S) 4-Bromofluorobenzene 98.3 67.0-138 (S) 1,2-Dichloroethane-d4 102 70.0-130 Laboratory Control Sample (LCS) (LCS) R3656810-1 05/17/21 19:05 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte ug/kg ug/kg %% Acetone 625 856 137 10.0-160 Acrylonitrile 625 785 126 45.0-153 Benzene 125 114 91.2 70.0-123 Bromobenzene 125 139 111 73.0-121 Bromodichloromethane 125 110 88.0 73.0-121 Bromoform 125 148 118 64.0-132 Bromomethane 125 122 97.6 56.0-147 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 48 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 48 of 69 QUALITY CONTROL SUMMARYWG1672299 Volatile Organic Compounds (GC/MS) by Method 8260D L1352734-01,02,03,04,05,06,07,08,09,10,11,12,13,14 Laboratory Control Sample (LCS) (LCS) R3656810-1 05/17/21 19:05 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte ug/kg ug/kg %% n-Butylbenzene 125 111 88.8 68.0-135 sec-Butylbenzene 125 123 98.4 74.0-130 tert-Butylbenzene 125 122 97.6 75.0-127 Carbon tetrachloride 125 126 101 66.0-128 Chlorobenzene 125 126 101 76.0-128 Chlorodibromomethane 125 122 97.6 74.0-127 Chloroethane 125 119 95.2 61.0-134 Chloroform 125 116 92.8 72.0-123 Chloromethane 125 133 106 51.0-138 2-Chlorotoluene 125 127 102 75.0-124 4-Chlorotoluene 125 116 92.8 75.0-124 1,2-Dibromo-3-Chloropropane 125 116 92.8 59.0-130 1,2-Dibromoethane 125 120 96.0 74.0-128 Dibromomethane 125 127 102 75.0-122 1,2-Dichlorobenzene 125 127 102 76.0-124 1,3-Dichlorobenzene 125 136 109 76.0-125 1,4-Dichlorobenzene 125 118 94.4 77.0-121 Dichlorodifluoromethane 125 123 98.4 43.0-156 1,1-Dichloroethane 125 124 99.2 70.0-127 1,2-Dichloroethane 125 132 106 65.0-131 1,1-Dichloroethene 125 108 86.4 65.0-131 cis-1,2-Dichloroethene 125 119 95.2 73.0-125 trans-1,2-Dichloroethene 125 111 88.8 71.0-125 1,2-Dichloropropane 125 115 92.0 74.0-125 1,1-Dichloropropene 125 107 85.6 73.0-125 1,3-Dichloropropane 125 122 97.6 80.0-125 cis-1,3-Dichloropropene 125 110 88.0 76.0-127 trans-1,3-Dichloropropene 125 127 102 73.0-127 2,2-Dichloropropane 125 118 94.4 59.0-135 Di-isopropyl ether 125 119 95.2 60.0-136 Ethylbenzene 125 134 107 74.0-126 Hexachloro-1,3-butadiene 125 99.6 79.7 57.0-150 Isopropylbenzene 125 135 108 72.0-127 p-Isopropyltoluene 125 123 98.4 72.0-133 2-Butanone (MEK)625 782 125 30.0-160 Methylene Chloride 125 104 83.2 68.0-123 4-Methyl-2-pentanone (MIBK)625 796 127 56.0-143 Methyl tert-butyl ether 125 118 94.4 66.0-132 Naphthalene 125 104 83.2 59.0-130 n-Propylbenzene 125 123 98.4 74.0-126 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 49 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 49 of 69 QUALITY CONTROL SUMMARYWG1672299 Volatile Organic Compounds (GC/MS) by Method 8260D L1352734-01,02,03,04,05,06,07,08,09,10,11,12,13,14 Laboratory Control Sample (LCS) (LCS) R3656810-1 05/17/21 19:05 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte ug/kg ug/kg %% Styrene 125 124 99.2 72.0-127 1,1,1,2-Tetrachloroethane 125 139 111 74.0-129 1,1,2,2-Tetrachloroethane 125 103 82.4 68.0-128 Tetrachloroethene 125 134 107 70.0-136 Toluene 125 123 98.4 75.0-121 1,2,3-Trichlorobenzene 125 80.8 64.6 59.0-139 1,2,4-Trichlorobenzene 125 86.0 68.8 62.0-137 1,1,1-Trichloroethane 125 135 108 69.0-126 1,1,2-Trichloroethane 125 120 96.0 78.0-123 Trichloroethene 125 146 117 76.0-126 Trichlorofluoromethane 125 120 96.0 61.0-142 1,2,3-Trichloropropane 125 132 106 67.0-129 1,2,4-Trimethylbenzene 125 115 92.0 70.0-126 1,3,5-Trimethylbenzene 125 113 90.4 73.0-127 Vinyl chloride 125 108 86.4 63.0-134 Xylenes, Total 375 363 96.8 72.0-127 (S) Toluene-d8 105 75.0-131 (S) 4-Bromofluorobenzene 101 67.0-138 (S) 1,2-Dichloroethane-d4 112 70.0-130 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 50 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 50 of 69 QUALITY CONTROL SUMMARYWG1672940 Volatile Organic Compounds (GC/MS) by Method 8260D L1352734-16 Method Blank (MB) (MB) R3657767-3 05/18/21 23:18 MB Result MB Qualifier MB MDL MB RDL Analyte ug/kg ug/kg ug/kg Acetone U 36.5 50.0 Acrylonitrile U 3.61 12.5 Benzene U 0.467 1.00 Bromobenzene U 0.900 12.5 Bromodichloromethane U 0.725 2.50 Bromoform U 1.17 25.0 Bromomethane U 1.97 12.5 n-Butylbenzene U 5.25 12.5 sec-Butylbenzene U 2.88 12.5 tert-Butylbenzene U 1.95 5.00 Carbon tetrachloride U 0.898 5.00 Chlorobenzene U 0.210 2.50 Chlorodibromomethane U 0.612 2.50 Chloroethane U 1.70 5.00 Chloroform U 1.03 2.50 Chloromethane U 4.35 12.5 2-Chlorotoluene U 0.865 2.50 4-Chlorotoluene U 0.450 5.00 1,2-Dibromo-3-Chloropropane U 3.90 25.0 1,2-Dibromoethane U 0.648 2.50 Dibromomethane U 0.750 5.00 1,2-Dichlorobenzene U 0.425 5.00 1,3-Dichlorobenzene U 0.600 5.00 1,4-Dichlorobenzene U 0.700 5.00 Dichlorodifluoromethane U 1.61 2.50 1,1-Dichloroethane U 0.491 2.50 1,2-Dichloroethane U 0.649 2.50 1,1-Dichloroethene U 0.606 2.50 cis-1,2-Dichloroethene U 0.734 2.50 trans-1,2-Dichloroethene U 1.04 5.00 1,2-Dichloropropane U 1.42 5.00 1,1-Dichloropropene U 0.809 2.50 1,3-Dichloropropane U 0.501 5.00 cis-1,3-Dichloropropene U 0.757 2.50 trans-1,3-Dichloropropene U 1.14 5.00 2,2-Dichloropropane U 1.38 2.50 Di-isopropyl ether U 0.410 1.00 Ethylbenzene U 0.737 2.50 Hexachloro-1,3-butadiene U 6.00 25.0 Isopropylbenzene U 0.425 2.50 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 51 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 51 of 69 QUALITY CONTROL SUMMARYWG1672940 Volatile Organic Compounds (GC/MS) by Method 8260D L1352734-16 Method Blank (MB) (MB) R3657767-3 05/18/21 23:18 MB Result MB Qualifier MB MDL MB RDL Analyte ug/kg ug/kg ug/kg p-Isopropyltoluene U 2.55 5.00 2-Butanone (MEK)U 63.5 100 Methylene Chloride U 6.64 25.0 4-Methyl-2-pentanone (MIBK)U 2.28 25.0 Methyl tert-butyl ether U 0.350 1.00 Naphthalene U 4.88 12.5 n-Propylbenzene U 0.950 5.00 Styrene U 0.229 12.5 1,1,1,2-Tetrachloroethane U 0.948 2.50 1,1,2,2-Tetrachloroethane U 0.695 2.50 Tetrachloroethene U 0.896 2.50 Toluene U 1.30 5.00 1,2,3-Trichlorobenzene U 7.33 12.5 1,2,4-Trichlorobenzene U 4.40 12.5 1,1,1-Trichloroethane U 0.923 2.50 1,1,2-Trichloroethane U 0.597 2.50 Trichloroethene U 0.584 1.00 Trichlorofluoromethane U 0.827 2.50 1,2,3-Trichloropropane U 1.62 12.5 1,2,4-Trimethylbenzene U 1.58 5.00 1,3,5-Trimethylbenzene U 2.00 5.00 Vinyl chloride U 1.16 2.50 Xylenes, Total U 0.880 6.50 (S) Toluene-d8 106 75.0-131 (S) 4-Bromofluorobenzene 101 67.0-138 (S) 1,2-Dichloroethane-d4 96.4 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3657767-1 05/18/21 22:02 • (LCSD) R3657767-2 05/18/21 22:21 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte ug/kg ug/kg ug/kg %%%%% Acetone 625 880 843 141 135 10.0-160 4.29 31 Acrylonitrile 625 705 723 113 116 45.0-153 2.52 22 Benzene 125 124 121 99.2 96.8 70.0-123 2.45 20 Bromobenzene 125 106 98.2 84.8 78.6 73.0-121 7.64 20 Bromodichloromethane 125 123 121 98.4 96.8 73.0-121 1.64 20 Bromoform 125 119 120 95.2 96.0 64.0-132 0.837 20 Bromomethane 125 107 103 85.6 82.4 56.0-147 3.81 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 52 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 52 of 69 QUALITY CONTROL SUMMARYWG1672940 Volatile Organic Compounds (GC/MS) by Method 8260D L1352734-16 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3657767-1 05/18/21 22:02 • (LCSD) R3657767-2 05/18/21 22:21 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte ug/kg ug/kg ug/kg %%%%% n-Butylbenzene 125 114 116 91.2 92.8 68.0-135 1.74 20 sec-Butylbenzene 125 113 111 90.4 88.8 74.0-130 1.79 20 tert-Butylbenzene 125 110 106 88.0 84.8 75.0-127 3.70 20 Carbon tetrachloride 125 126 125 101 100 66.0-128 0.797 20 Chlorobenzene 125 123 115 98.4 92.0 76.0-128 6.72 20 Chlorodibromomethane 125 121 118 96.8 94.4 74.0-127 2.51 20 Chloroethane 125 104 101 83.2 80.8 61.0-134 2.93 20 Chloroform 125 120 117 96.0 93.6 72.0-123 2.53 20 Chloromethane 125 104 99.0 83.2 79.2 51.0-138 4.93 20 2-Chlorotoluene 125 115 107 92.0 85.6 75.0-124 7.21 20 4-Chlorotoluene 125 113 106 90.4 84.8 75.0-124 6.39 20 1,2-Dibromo-3-Chloropropane 125 113 117 90.4 93.6 59.0-130 3.48 20 1,2-Dibromoethane 125 121 117 96.8 93.6 74.0-128 3.36 20 Dibromomethane 125 124 119 99.2 95.2 75.0-122 4.12 20 1,2-Dichlorobenzene 125 124 128 99.2 102 76.0-124 3.17 20 1,3-Dichlorobenzene 125 122 116 97.6 92.8 76.0-125 5.04 20 1,4-Dichlorobenzene 125 118 115 94.4 92.0 77.0-121 2.58 20 Dichlorodifluoromethane 125 131 128 105 102 43.0-156 2.32 20 1,1-Dichloroethane 125 124 119 99.2 95.2 70.0-127 4.12 20 1,2-Dichloroethane 125 123 114 98.4 91.2 65.0-131 7.59 20 1,1-Dichloroethene 125 124 118 99.2 94.4 65.0-131 4.96 20 cis-1,2-Dichloroethene 125 121 120 96.8 96.0 73.0-125 0.830 20 trans-1,2-Dichloroethene 125 116 116 92.8 92.8 71.0-125 0.000 20 1,2-Dichloropropane 125 119 119 95.2 95.2 74.0-125 0.000 20 1,1-Dichloropropene 125 121 115 96.8 92.0 73.0-125 5.08 20 1,3-Dichloropropane 125 116 113 92.8 90.4 80.0-125 2.62 20 cis-1,3-Dichloropropene 125 112 112 89.6 89.6 76.0-127 0.000 20 trans-1,3-Dichloropropene 125 116 112 92.8 89.6 73.0-127 3.51 20 2,2-Dichloropropane 125 124 117 99.2 93.6 59.0-135 5.81 20 Di-isopropyl ether 125 133 128 106 102 60.0-136 3.83 20 Ethylbenzene 125 122 118 97.6 94.4 74.0-126 3.33 20 Hexachloro-1,3-butadiene 125 121 136 96.8 109 57.0-150 11.7 20 Isopropylbenzene 125 137 131 110 105 72.0-127 4.48 20 p-Isopropyltoluene 125 118 115 94.4 92.0 72.0-133 2.58 20 2-Butanone (MEK)625 709 698 113 112 30.0-160 1.56 24 Methylene Chloride 125 123 121 98.4 96.8 68.0-123 1.64 20 4-Methyl-2-pentanone (MIBK)625 621 609 99.4 97.4 56.0-143 1.95 20 Methyl tert-butyl ether 125 138 135 110 108 66.0-132 2.20 20 Naphthalene 125 104 133 83.2 106 59.0-130 J3 24.5 20 n-Propylbenzene 125 106 98.0 84.8 78.4 74.0-126 7.84 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 53 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 53 of 69 QUALITY CONTROL SUMMARYWG1672940 Volatile Organic Compounds (GC/MS) by Method 8260D L1352734-16 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3657767-1 05/18/21 22:02 • (LCSD) R3657767-2 05/18/21 22:21 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte ug/kg ug/kg ug/kg %%%%% Styrene 125 132 128 106 102 72.0-127 3.08 20 1,1,1,2-Tetrachloroethane 125 129 123 103 98.4 74.0-129 4.76 20 1,1,2,2-Tetrachloroethane 125 97.6 94.9 78.1 75.9 68.0-128 2.81 20 Tetrachloroethene 125 117 110 93.6 88.0 70.0-136 6.17 20 Toluene 125 115 110 92.0 88.0 75.0-121 4.44 20 1,2,3-Trichlorobenzene 125 98.8 125 79.0 100 59.0-139 J3 23.4 20 1,2,4-Trichlorobenzene 125 109 140 87.2 112 62.0-137 J3 24.9 20 1,1,1-Trichloroethane 125 126 120 101 96.0 69.0-126 4.88 20 1,1,2-Trichloroethane 125 116 111 92.8 88.8 78.0-123 4.41 20 Trichloroethene 125 129 128 103 102 76.0-126 0.778 20 Trichlorofluoromethane 125 107 104 85.6 83.2 61.0-142 2.84 20 1,2,3-Trichloropropane 125 111 104 88.8 83.2 67.0-129 6.51 20 1,2,4-Trimethylbenzene 125 117 115 93.6 92.0 70.0-126 1.72 20 1,3,5-Trimethylbenzene 125 115 109 92.0 87.2 73.0-127 5.36 20 Vinyl chloride 125 102 104 81.6 83.2 63.0-134 1.94 20 Xylenes, Total 375 367 376 97.9 100 72.0-127 2.42 20 (S) Toluene-d8 97.1 96.1 75.0-131 (S) 4-Bromofluorobenzene 115 115 67.0-138 (S) 1,2-Dichloroethane-d4 103 104 70.0-130 L1352603-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1352603-01 05/19/21 02:27 • (MS) R3657767-4 05/19/21 06:33 • (MSD) R3657767-5 05/19/21 06:52 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte ug/kg ug/kg ug/kg ug/kg %%%%% Acrylonitrile 1200 U 1010 1170 84.0 98.1 1.23 10.0-160 15.4 40 Bromobenzene 239 U 144 168 60.0 70.1 1.23 10.0-156 15.6 38 Acetone 1200 102 862 967 63.5 72.2 1.23 10.0-160 11.4 40 n-Butylbenzene 239 U 130 130 54.2 54.5 1.23 10.0-160 0.598 40 sec-Butylbenzene 239 U 129 142 53.8 59.2 1.23 10.0-159 9.53 39 tert-Butylbenzene 239 U 126 143 52.5 59.9 1.23 10.0-156 13.3 39 Benzene 239 U 119 129 49.7 54.0 1.23 10.0-149 8.26 37 Bromodichloromethane 239 U 148 159 61.8 66.2 1.23 10.0-143 6.90 37 Bromoform 239 U 182 185 76.0 77.3 1.23 10.0-146 1.69 36 Bromomethane 239 U 42.1 53.9 17.6 22.5 1.23 10.0-149 24.6 38 2-Chlorotoluene 239 U 127 150 53.2 62.6 1.23 10.0-159 16.3 38 4-Chlorotoluene 239 U 136 159 56.9 66.2 1.23 10.0-155 15.2 39 Carbon tetrachloride 239 U 79.1 105 33.1 43.7 1.23 10.0-145 27.7 37 Dibromomethane 239 U 168 180 70.1 75.3 1.23 10.0-147 7.14 35 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 54 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 54 of 69 QUALITY CONTROL SUMMARYWG1672940 Volatile Organic Compounds (GC/MS) by Method 8260D L1352734-16 L1352603-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1352603-01 05/19/21 02:27 • (MS) R3657767-4 05/19/21 06:33 • (MSD) R3657767-5 05/19/21 06:52 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte ug/kg ug/kg ug/kg ug/kg %%%%% Chlorobenzene 239 U 134 147 56.0 61.4 1.23 10.0-152 9.07 39 Chlorodibromomethane 239 U 182 191 76.0 79.9 1.23 10.0-146 5.00 37 Chloroethane 239 U 23.0 29.2 9.61 12.2 1.23 10.0-146 J6 23.8 40 Chloroform 239 U 120 132 50.2 55.3 1.23 10.0-146 9.61 37 Chloromethane 239 U 76.8 81.1 32.1 33.9 1.23 10.0-159 5.51 37 1,2-Dibromo-3-Chloropropane 239 U 193 216 80.5 90.3 1.23 10.0-151 11.4 39 1,2-Dibromoethane 239 U 199 208 83.1 87.0 1.23 10.0-148 4.58 34 1,2-Dichlorobenzene 239 U 177 182 74.0 76.0 1.23 10.0-155 2.60 37 1,1-Dichloropropene 239 U 92.6 105 38.7 43.9 1.23 10.0-153 12.6 35 1,3-Dichlorobenzene 239 U 149 160 62.2 66.9 1.23 10.0-153 7.24 38 1,3-Dichloropropane 239 U 193 200 80.5 83.8 1.23 10.0-154 3.95 35 1,4-Dichlorobenzene 239 U 155 162 64.7 67.5 1.23 10.0-151 4.22 38 Dichlorodifluoromethane 239 U 77.2 85.3 32.3 35.6 1.23 10.0-160 9.94 35 2,2-Dichloropropane 239 U 73.3 82.2 30.6 34.4 1.23 10.0-138 11.4 36 1,1-Dichloroethane 239 U 114 129 47.8 53.9 1.23 10.0-147 12.0 37 1,2-Dichloroethane 239 U 166 182 69.5 76.0 1.23 10.0-148 8.93 35 Di-isopropyl ether 239 U 168 180 70.1 75.3 1.23 10.0-147 7.14 36 1,1-Dichloroethene 239 U 97.0 107 40.5 44.5 1.23 10.0-155 9.47 37 cis-1,2-Dichloroethene 239 U 126 135 52.7 56.6 1.23 10.0-149 7.01 37 trans-1,2-Dichloroethene 239 U 102 113 42.8 47.1 1.23 10.0-150 9.68 37 1,2-Dichloropropane 239 U 143 155 59.5 64.9 1.23 10.0-148 8.66 37 Hexachloro-1,3-butadiene 239 U 191 153 79.9 63.8 1.23 10.0-160 22.4 40 cis-1,3-Dichloropropene 239 U 152 155 63.6 64.9 1.23 10.0-151 2.12 37 trans-1,3-Dichloropropene 239 U 183 197 76.6 82.5 1.23 10.0-148 7.35 37 p-Isopropyltoluene 239 U 132 138 55.3 57.5 1.23 10.0-160 3.91 40 Ethylbenzene 239 U 116 127 48.4 53.2 1.23 10.0-160 9.45 38 Naphthalene 239 U 239 256 100 107 1.23 10.0-160 6.90 36 n-Propylbenzene 239 U 113 130 47.3 54.5 1.23 10.0-158 14.0 38 Isopropylbenzene 239 U 123 129 51.4 54.1 1.23 10.0-155 5.17 38 1,1,1,2-Tetrachloroethane 239 U 144 162 60.3 67.5 1.23 10.0-149 11.3 39 2-Butanone (MEK)1200 168 1040 1150 72.9 81.9 1.23 10.0-160 9.94 40 Methylene Chloride 239 U 17.4 23.9 7.27 10.0 1.23 10.0-141 J6 31.6 37 4-Methyl-2-pentanone (MIBK)1200 U 1100 1190 91.8 99.2 1.23 10.0-160 7.75 35 Methyl tert-butyl ether 239 U 200 221 83.8 92.2 1.23 11.0-147 9.59 35 Styrene 239 U 146 151 61.2 63.0 1.23 10.0-160 2.93 40 1,2,3-Trichloropropane 239 U 207 246 86.4 103 1.23 10.0-156 17.2 35 1,1,2,2-Tetrachloroethane 239 U 196 235 81.8 98.1 1.23 10.0-160 18.1 35 1,2,4-Trimethylbenzene 239 U 135 143 56.3 59.9 1.23 10.0-160 6.26 36 Tetrachloroethene 239 U 99.8 114 41.7 47.8 1.23 10.0-156 13.6 39 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 55 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 55 of 69 QUALITY CONTROL SUMMARYWG1672940 Volatile Organic Compounds (GC/MS) by Method 8260D L1352734-16 L1352603-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1352603-01 05/19/21 02:27 • (MS) R3657767-4 05/19/21 06:33 • (MSD) R3657767-5 05/19/21 06:52 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte ug/kg ug/kg ug/kg ug/kg %%%%% 1,3,5-Trimethylbenzene 239 U 125 139 52.1 58.1 1.23 10.0-160 10.7 38 Toluene 239 U 120 135 49.9 56.3 1.23 10.0-156 12.0 38 1,2,3-Trichlorobenzene 239 U 219 211 91.6 88.3 1.23 10.0-160 3.61 40 1,2,4-Trichlorobenzene 239 U 208 186 87.0 77.9 1.23 10.0-160 11.0 40 1,1,1-Trichloroethane 239 U 98.7 106 41.2 44.4 1.23 10.0-144 7.43 35 1,1,2-Trichloroethane 239 U 190 205 79.2 85.7 1.23 10.0-160 7.87 35 Trichloroethene 239 U 106 121 44.2 50.4 1.23 10.0-156 13.0 38 Trichlorofluoromethane 239 U 31.4 42.3 13.1 17.7 1.23 10.0-160 29.5 40 Vinyl chloride 239 U 67.9 77.1 28.4 32.2 1.23 10.0-160 12.6 37 Xylenes, Total 718 2.00 371 402 51.5 55.8 1.23 10.0-160 8.03 38 (S) Toluene-d8 103 105 75.0-131 (S) 4-Bromofluorobenzene 105 103 67.0-138 (S) 1,2-Dichloroethane-d4 98.0 100 70.0-130 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 56 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 56 of 69 QUALITY CONTROL SUMMARYWG1673298 Volatile Organic Compounds (GC/MS) by Method 8260D L1352734-15,17 Method Blank (MB) (MB) R3657322-2 05/20/21 08:12 MB Result MB Qualifier MB MDL MB RDL Analyte ug/kg ug/kg ug/kg Acetone U 36.5 50.0 Acrylonitrile U 3.61 12.5 Benzene 0.500 J 0.467 1.00 Bromobenzene U 0.900 12.5 Bromodichloromethane U 0.725 2.50 Bromoform U 1.17 25.0 Bromomethane U 1.97 12.5 n-Butylbenzene U 5.25 12.5 sec-Butylbenzene U 2.88 12.5 tert-Butylbenzene U 1.95 5.00 Carbon tetrachloride U 0.898 5.00 Chlorobenzene 0.300 J 0.210 2.50 Chlorodibromomethane U 0.612 2.50 Chloroethane U 1.70 5.00 Chloroform U 1.03 2.50 Chloromethane U 4.35 12.5 2-Chlorotoluene 1.63 J 0.865 2.50 4-Chlorotoluene U 0.450 5.00 1,2-Dibromo-3-Chloropropane U 3.90 25.0 1,2-Dibromoethane U 0.648 2.50 Dibromomethane U 0.750 5.00 1,2-Dichlorobenzene U 0.425 5.00 1,3-Dichlorobenzene U 0.600 5.00 1,4-Dichlorobenzene 1.30 J 0.700 5.00 Dichlorodifluoromethane U 1.61 2.50 1,1-Dichloroethane U 0.491 2.50 1,2-Dichloroethane 1.40 J 0.649 2.50 1,1-Dichloroethene U 0.606 2.50 cis-1,2-Dichloroethene U 0.734 2.50 trans-1,2-Dichloroethene U 1.04 5.00 1,2-Dichloropropane U 1.42 5.00 1,1-Dichloropropene U 0.809 2.50 1,3-Dichloropropane U 0.501 5.00 cis-1,3-Dichloropropene U 0.757 2.50 trans-1,3-Dichloropropene U 1.14 5.00 2,2-Dichloropropane U 1.38 2.50 Di-isopropyl ether U 0.410 1.00 Ethylbenzene U 0.737 2.50 Hexachloro-1,3-butadiene U 6.00 25.0 Isopropylbenzene U 0.425 2.50 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 57 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 57 of 69 QUALITY CONTROL SUMMARYWG1673298 Volatile Organic Compounds (GC/MS) by Method 8260D L1352734-15,17 Method Blank (MB) (MB) R3657322-2 05/20/21 08:12 MB Result MB Qualifier MB MDL MB RDL Analyte ug/kg ug/kg ug/kg p-Isopropyltoluene U 2.55 5.00 2-Butanone (MEK)U 63.5 100 Methylene Chloride U 6.64 25.0 4-Methyl-2-pentanone (MIBK)U 2.28 25.0 Methyl tert-butyl ether U 0.350 1.00 Naphthalene U 4.88 12.5 n-Propylbenzene U 0.950 5.00 Styrene 2.82 J 0.229 12.5 1,1,1,2-Tetrachloroethane U 0.948 2.50 1,1,2,2-Tetrachloroethane U 0.695 2.50 Tetrachloroethene U 0.896 2.50 Toluene U 1.30 5.00 1,2,3-Trichlorobenzene U 7.33 12.5 1,2,4-Trichlorobenzene U 4.40 12.5 1,1,1-Trichloroethane U 0.923 2.50 1,1,2-Trichloroethane U 0.597 2.50 Trichloroethene U 0.584 1.00 Trichlorofluoromethane U 0.827 2.50 1,2,3-Trichloropropane U 1.62 12.5 1,2,4-Trimethylbenzene 2.28 J 1.58 5.00 1,3,5-Trimethylbenzene U 2.00 5.00 Vinyl chloride U 1.16 2.50 Xylenes, Total 2.25 J 0.880 6.50 (S) Toluene-d8 107 75.0-131 (S) 4-Bromofluorobenzene 90.7 67.0-138 (S) 1,2-Dichloroethane-d4 85.4 70.0-130 Laboratory Control Sample (LCS) (LCS) R3657322-1 05/20/21 03:39 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte ug/kg ug/kg %% Acetone 625 1020 163 10.0-160 J4 Acrylonitrile 625 780 125 45.0-153 Benzene 125 123 98.4 70.0-123 Bromobenzene 125 119 95.2 73.0-121 Bromodichloromethane 125 119 95.2 73.0-121 Bromoform 125 115 92.0 64.0-132 Bromomethane 125 125 100 56.0-147 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 58 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 58 of 69 QUALITY CONTROL SUMMARYWG1673298 Volatile Organic Compounds (GC/MS) by Method 8260D L1352734-15,17 Laboratory Control Sample (LCS) (LCS) R3657322-1 05/20/21 03:39 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte ug/kg ug/kg %% n-Butylbenzene 125 120 96.0 68.0-135 sec-Butylbenzene 125 116 92.8 74.0-130 tert-Butylbenzene 125 111 88.8 75.0-127 Carbon tetrachloride 125 99.8 79.8 66.0-128 Chlorobenzene 125 121 96.8 76.0-128 Chlorodibromomethane 125 116 92.8 74.0-127 Chloroethane 125 116 92.8 61.0-134 Chloroform 125 107 85.6 72.0-123 Chloromethane 125 129 103 51.0-138 2-Chlorotoluene 125 120 96.0 75.0-124 4-Chlorotoluene 125 125 100 75.0-124 1,2-Dibromo-3-Chloropropane 125 129 103 59.0-130 1,2-Dibromoethane 125 123 98.4 74.0-128 Dibromomethane 125 126 101 75.0-122 1,2-Dichlorobenzene 125 125 100 76.0-124 1,3-Dichlorobenzene 125 119 95.2 76.0-125 1,4-Dichlorobenzene 125 123 98.4 77.0-121 Dichlorodifluoromethane 125 134 107 43.0-156 1,1-Dichloroethane 125 125 100 70.0-127 1,2-Dichloroethane 125 109 87.2 65.0-131 1,1-Dichloroethene 125 106 84.8 65.0-131 cis-1,2-Dichloroethene 125 114 91.2 73.0-125 trans-1,2-Dichloroethene 125 105 84.0 71.0-125 1,2-Dichloropropane 125 123 98.4 74.0-125 1,1-Dichloropropene 125 107 85.6 73.0-125 1,3-Dichloropropane 125 131 105 80.0-125 cis-1,3-Dichloropropene 125 114 91.2 76.0-127 trans-1,3-Dichloropropene 125 119 95.2 73.0-127 2,2-Dichloropropane 125 110 88.0 59.0-135 Di-isopropyl ether 125 125 100 60.0-136 Ethylbenzene 125 117 93.6 74.0-126 Hexachloro-1,3-butadiene 125 91.5 73.2 57.0-150 Isopropylbenzene 125 109 87.2 72.0-127 p-Isopropyltoluene 125 109 87.2 72.0-133 2-Butanone (MEK)625 839 134 30.0-160 Methylene Chloride 125 113 90.4 68.0-123 4-Methyl-2-pentanone (MIBK)625 747 120 56.0-143 Methyl tert-butyl ether 125 124 99.2 66.0-132 Naphthalene 125 99.0 79.2 59.0-130 n-Propylbenzene 125 131 105 74.0-126 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 59 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 59 of 69 QUALITY CONTROL SUMMARYWG1673298 Volatile Organic Compounds (GC/MS) by Method 8260D L1352734-15,17 Laboratory Control Sample (LCS) (LCS) R3657322-1 05/20/21 03:39 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte ug/kg ug/kg %% Styrene 125 117 93.6 72.0-127 1,1,1,2-Tetrachloroethane 125 110 88.0 74.0-129 1,1,2,2-Tetrachloroethane 125 137 110 68.0-128 Tetrachloroethene 125 117 93.6 70.0-136 Toluene 125 122 97.6 75.0-121 1,2,3-Trichlorobenzene 125 73.1 58.5 59.0-139 J4 1,2,4-Trichlorobenzene 125 96.8 77.4 62.0-137 1,1,1-Trichloroethane 125 105 84.0 69.0-126 1,1,2-Trichloroethane 125 124 99.2 78.0-123 Trichloroethene 125 117 93.6 76.0-126 Trichlorofluoromethane 125 96.4 77.1 61.0-142 1,2,3-Trichloropropane 125 132 106 67.0-129 1,2,4-Trimethylbenzene 125 116 92.8 70.0-126 1,3,5-Trimethylbenzene 125 109 87.2 73.0-127 Vinyl chloride 125 110 88.0 63.0-134 Xylenes, Total 375 354 94.4 72.0-127 (S) Toluene-d8 102 75.0-131 (S) 4-Bromofluorobenzene 93.6 67.0-138 (S) 1,2-Dichloroethane-d4 99.2 70.0-130 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 60 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 60 of 69 QUALITY CONTROL SUMMARYWG1674133 Volatile Organic Compounds (GC/MS) by Method 8260D L1352734-02,03,04,05,06,07,08,09 Method Blank (MB) (MB) R3657181-2 05/20/21 12:46 MB Result MB Qualifier MB MDL MB RDL Analyte ug/kg ug/kg ug/kg n-Butylbenzene U 5.25 12.5 Naphthalene U 4.88 12.5 1,2,4-Trimethylbenzene U 1.58 5.00 Xylenes, Total U 0.880 6.50 (S) Toluene-d8 114 75.0-131 (S) 4-Bromofluorobenzene 92.8 67.0-138 (S) 1,2-Dichloroethane-d4 95.8 70.0-130 Laboratory Control Sample (LCS) (LCS) R3657181-1 05/20/21 11:44 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte ug/kg ug/kg %% n-Butylbenzene 125 108 86.4 68.0-135 Naphthalene 125 103 82.4 59.0-130 1,2,4-Trimethylbenzene 125 112 89.6 70.0-126 Xylenes, Total 375 330 88.0 72.0-127 (S) Toluene-d8 109 75.0-131 (S) 4-Bromofluorobenzene 90.6 67.0-138 (S) 1,2-Dichloroethane-d4 103 70.0-130 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 61 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 61 of 69 QUALITY CONTROL SUMMARYWG1674625 Volatile Organic Compounds (GC/MS) by Method 8260D L1352734-01 Method Blank (MB) (MB) R3657395-2 05/20/21 19:12 MB Result MB Qualifier MB MDL MB RDL Analyte ug/kg ug/kg ug/kg n-Butylbenzene U 5.25 12.5 Naphthalene U 4.88 12.5 n-Propylbenzene U 0.950 5.00 1,2,4-Trimethylbenzene U 1.58 5.00 1,3,5-Trimethylbenzene U 2.00 5.00 Xylenes, Total U 0.880 6.50 (S) Toluene-d8 101 75.0-131 (S) 4-Bromofluorobenzene 102 67.0-138 (S) 1,2-Dichloroethane-d4 105 70.0-130 Laboratory Control Sample (LCS) (LCS) R3657395-1 05/20/21 18:15 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte ug/kg ug/kg %% n-Butylbenzene 125 104 83.2 68.0-135 Naphthalene 125 115 92.0 59.0-130 n-Propylbenzene 125 104 83.2 74.0-126 1,2,4-Trimethylbenzene 125 105 84.0 70.0-126 1,3,5-Trimethylbenzene 125 109 87.2 73.0-127 Xylenes, Total 375 362 96.5 72.0-127 (S) Toluene-d8 99.3 75.0-131 (S) 4-Bromofluorobenzene 104 67.0-138 (S) 1,2-Dichloroethane-d4 105 70.0-130 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 62 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 62 of 69 QUALITY CONTROL SUMMARYWG1673614 Semi-Volatile Organic Compounds (GC) by Method 8015C L1352734-01,02,03,04,05,06,07,08 Method Blank (MB) (MB) R3656904-1 05/20/21 09:31 MB Result MB Qualifier MB MDL MB RDL Analyte ug/kg ug/kg ug/kg TPH (GC/FID) High Fraction U 769 4000 (S) o-Terphenyl 65.5 18.0-148 Laboratory Control Sample (LCS) (LCS) R3656904-2 05/20/21 09:44 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte ug/kg ug/kg %% TPH (GC/FID) High Fraction 50000 34900 69.8 50.0-150 (S) o-Terphenyl 62.9 18.0-148 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 63 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 63 of 69 QUALITY CONTROL SUMMARYWG1673616 Semi-Volatile Organic Compounds (GC) by Method 8015C L1352734-09,10,11,12,13,14,15,16,17 Method Blank (MB) (MB) R3657410-1 05/20/21 11:12 MB Result MB Qualifier MB MDL MB RDL Analyte ug/kg ug/kg ug/kg TPH (GC/FID) High Fraction U 769 4000 (S) o-Terphenyl 79.4 18.0-148 Laboratory Control Sample (LCS) (LCS) R3657410-2 05/20/21 11:25 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte ug/kg ug/kg %% TPH (GC/FID) High Fraction 50000 43000 86.0 50.0-150 (S) o-Terphenyl 98.6 18.0-148 L1352770-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1352770-01 05/20/21 13:43 • (MS) R3657410-3 05/20/21 13:57 • (MSD) R3657410-4 05/20/21 14:11 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte ug/kg %%%%% TPH (GC/FID) High Fraction 50000 156000 197000 178000 52.6 28.6 1 50.0-150 J6 10.0 20 (S) o-Terphenyl 92.6 88.4 18.0-148 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 64 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 64 of 69 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. MDL (dry)Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. (S) Surrogate (Surrogate Standard) - Analytes added to every blank, sample, Laboratory Control Sample/Duplicate and Matrix Spike/Duplicate; used to evaluate analytical efficiency by measuring recovery. Surrogates are not expected to be detected in all environmental media. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description B The same analyte is found in the associated blank. C3 The reported concentration is an estimate. The continuing calibration standard associated with this data responded low. Method sensitivity check is acceptable. C4 The reported concentration is an estimate. The continuing calibration standard associated with this data responded low. Data is likely to show a low bias concerning the result. C5 The reported concentration is an estimate. The continuing calibration standard associated with this data responded high.Data is likely to show a high bias concerning the result. J The identification of the analyte is acceptable; the reported value is an estimate. J2 Surrogate recovery limits have been exceeded; values are outside lower control limits. J3 The associated batch QC was outside the established quality control range for precision. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 65 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 65 of 69 GLOSSARY OF TERMS Qualifier Description J4 The associated batch QC was outside the established quality control range for accuracy. J6 The sample matrix interfered with the ability to make any accurate determination; spike value is low. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 66 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 66 of 69 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 12:36 67 of 69 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2020102 L1352734 05/25/21 14:38 67 of 69 EXCEL CIVIL & ENVIRONMENTAL ASSOCIATES, PLLC  www.excelengr.com  APPENDIX C LSA RISK CLASSIFICATION & LAND USE FORM EXCEL CIVIL & ENVIRONMENTAL ASSOCIATES, PLLC  www.excelengr.com  B. Risk Characterization  Submit the following questionnaire in its entirety. Answer all questions completely. Attach additional  pages as needed to fully explain answers. Base answers/explanations on information known or required  to be obtained during the Limited Site Assessment.  NOTE:  Source area means point of release from a UST system  Limited Site Assessment Risk Classification and Land Use Form  Part I – Groundwater/Surface Water/Vapor Impacts  High Risk  1. Has the release contaminated any water supply well including any well used for non‐drinking purposes? NO  2.  Is a water supply well used for drinking water located within 1,000 feet of the source area of the  release?    NO  3. Is a water supply well not used for drinking water (e.g., irrigation, washing cars, industrial cooling  water, filling swimming pools) located within 250 feet of the source area of the release?    NO  4. Does groundwater within 500 feet of the source area of the release have the potential for future use  (there is no other source of water supply other than the groundwater)?    NO  5. Do vapors from the release pose a threat of explosion because of accumulation of the vapors in a  confined space or pose any other serious threat to public health, public safety or the environment?    NO   If yes, describe.     6. Are there any other factors that would cause the release to pose an imminent danger to public health,  public safety, or the environment?    NO   If yes, describe.     Intermediate Risk  7. Is a surface water body located within 500 feet of the source area of the release? NO   If yes, does the maximum groundwater contaminant concentration exceed the surface water quality  standards and criteria found in 15A NCAC 2B .0200 by a factor of 10?    N/A  8. Is the source area of the release located within an approved or planned wellhead protection area as  defined in 42 USC 300h‐7(e)?    NO   If yes, describe.     9. Is the release located in the Coastal Plain physiographic region as designated on a map entitled  “Geology of North Carolina” published by the Department in 1985?    NO         If yes, is the source area of the release located in an area in which there is recharge to an unconfined or  semi‐confined deeper aquifer that is being used or may be used as a source of drinking water?    N/A   If yes, describe.     10. Do the levels of groundwater contamination for any contaminant exceed the gross contamination  levels (see Table 9) established by the Department?    NO  EXCEL CIVIL & ENVIRONMENTAL ASSOCIATES, PLLC  www.excelengr.com  Limited Site Assessment Risk Classification & Land Use Form (Continued)    Part II ‐ Land Use  Property Containing Source Area of Release  The questions below pertain to the property containing the source area of the release: 1. Does the property contain one or more primary or secondary residences (permanent or temporary)? NO   Describe.      2. Does the property contain a school, daycare center, hospital, playground, park, recreation area, church,  nursing home, or other place of public assembly?    NO   Describe.      3. Does the property contain a commercial (e.g., retail, warehouse, office/business space, etc.) or  industrial (e.g., manufacturing, utilities, industrial research and development, chemical/petroleum bulk  storage, etc.) enterprise, an inactive commercial or industrial enterprise, or is the land undeveloped?    YES   Describe. The property is currently an active gas station and convenience store.   4. Do children visit the property? YES   Explain. The property is an active convenience store. Children do visit the property on a limited basis for short periods of time.    Is access to the property reliably restricted consistent with its use (e.g., by fences, security personnel or  both)?    NO   Explain.   5. Do pavement, buildings, or other structures cap the contaminated soil? YES  6. Describe. The property is mostly covered by impervious surfaces such as concrete and asphalt. The excavation pits associated with impacted soil have been backfilled.     If no, what mechanisms are in place or can be put into place to ensure that the contaminated soil will  remain capped in the foreseeable future?          7. What is the zoning status of the property?    Commercial     8. Is the use of the property likely to change in the next 20 years? NO   The property is generally surrounded by commercial properties, the use other than commercial within the next 20-years is not likely       Property Surrounding Source Area of Release  The questions below pertain to the area within 1,500 feet of the source area of the release (excludes  property containing source area of the release):  EXCEL CIVIL & ENVIRONMENTAL ASSOCIATES, PLLC  www.excelengr.com  1. What is the distance from the source area of the release to the nearest primary or secondary residence  (permanent or temporary)? Approximately 700’ to the south     2. What is the distance from the source area of the release to the nearest school, daycare center,  hospital, playground, park, recreation area, church, nursing home or other place of public assembly?  Pioneer Springs Community School is located approximately 4,000’ to the north   3. What is the zoning status of properties in the surrounding area? Mixed commercial and residential     Briefly characterize the use and activities of the land in the surrounding area.  The property is immediately surrounded by commercial properties to the north, south, east, and west. To the south, beyond a radius of approximately 500’, land use is primarily residential with some commercial.                                                                             EXCEL CIVIL & ENVIRONMENTAL ASSOCIATES, PLLC  www.excelengr.com  C. Receptor Information  1. Water Supply Wells  (Complete and attach Table B‐5 and attach map showing well locations)  Two active supply wells are located within a 1500’ radius of the property. A map of the location of each is attached.        2. Public Water Supplies    Are public water supplies available within 1,500 feet of the source area of the release?    YES   If yes, where is the location of the nearest public water lines and the source(s) of the public water  supply. (indicate on map)     Describe.  Public water supply hookups are available throughout the surrounding area.         3. Surface Water    Identify all surface water bodies (e.g., ditch, pond, stream, lake, river) within 1,500 feet of the source  area of the release. This information must be shown on the USGS topographic map.     According to the USGS Topographical Map for this area and vehicle reconnaissance, the nearest surface water body is an unnamed tributary of Long Creek, located approximately 130 feet south of the source area, however; the unnamed tributary is not shown on the NC surface water classification map. The next closest surface water body is located approximately 1,800 feet to the northeast of the subject property.         4. Wellhead Protection Areas    Identify all planned or approved wellhead protection areas (e.g., ditch, pond, stream, lake, river) within  1,500 feet of the source area of the release. This information must be shown on the USGS topographic  map. Wellhead protection areas are defined in 42 USC 300h‐7(e).        5. Describe Deep Aquifers in the Coastal Plain Physiographic Region (refer to page 19 of the guidelines):    NOTE: This requirement only pertains to releases in the Coastal Plain physiographic region as  designated on a map entitled “Geology of North Carolina” published by the Department in 1985.       Not applicable.               6. Describe Subsurface Structures (refer to page 19 of the guidelines):    Currently, the property is an active gas station with USTs located on the southern side of the property and existing infrastructure to service the dispensers and structures.          7. Property Owners and Occupants    Attach Table B‐6, listing the names and addresses of property owners and occupants within or  contiguous to the area containing contamination and all property owners and occupants within or  contiguous to the area where the contamination is expected to migrate.    EXCEL CIVIL & ENVIRONMENTAL ASSOCIATES, PLLC  www.excelengr.com  Limited Site Assessment Risk Classification & Land Use Form (Continued)  D. Site Geology & Hydrogeology  Describe the soil and geology encountered at the site. Discuss the effects of soil and geological characteristics on the  migration and attenuation of contaminants. Include information obtained during assessment activities (e.g.,  lithologic descriptions made during drilling, probe surveys, tank closure, etc). If a Phase II investigation is required  include a discussion of groundwater flow direction and hydraulic gradient (vertical and horizontal).    The soils identified during the installation of MW-1 were silts and clays encountered to a depth of approximately eight feet below grade level and sands and clays to a depth of approximately fourteen feet below grade level.     E. Conclusion and Recommendations  Discuss the risk criteria that apply to the release and identify any other site‐specific factors related to the release  that may pose a risk to human health and the environment. Also, discuss any site‐specific conditions or possible  actions that could result in lowering the level of risk posed by the release.  Based on the information in this report, Excel proposes a site risk classification of “low” be assigned to the incident, and recommends pursuing a no further action status for this site.         Table 6: Adjacent Property Owner Information Incident No. 47377 Name: Sam’s Mart No. 80 Facility ID#: 35683 Tax Parcel Number/ Map ID Owner/ Occupant Name (Last, First MI) Mailing Address / Physical Address 03725316 ( SITE ) Sam’s Investments LLC 7935 Council Place, Matthews, NC 28105 / 8325 Old Statesville Road, Charlotte NC, 28269 03725317 RJS/STS LLC 5042 Carmel Rd Charlotte, NC 28269/ 8405 Old Statesville Road, Charlotte NC, 28269 03725318 Mauricio Santacruz 5324 Wales St. Charlotte, NC 28269 / 8411 Old Statesville Road, Charlotte NC, 28269 Notes: Revision Date: 6/10/2021 EXCEL CIVIL & ENVIRONMENTAL ASSOCIATES, PLLC  www.excelengr.com  APPENDIX D LINE CLOSURE SITE PHOTOGRAPHS EXCEL CIVIL & ENVIRONMENTAL ASSOCIATES, PLLC Excel Project No. 2020102 PHOTOGRAPH LOG PHOTOGRAPH NUMBER PHOTOGRAPH REVIEW AND COMMENTS 1 View looking at removed product lines looking northeast. 2 View looking at removed product lines and dispenser. 3 View looking at removed product lines looking northeast. Excel Project No. 2020102 Photograph Number 1 Photograph Number 2 Excel Project No. 2020102 Photograph Number 3 EXCEL CIVIL & ENVIRONMENTAL ASSOCIATES, PLLC  www.excelengr.com  APPENDIX E RETURNED WELL QUESTIONNAIRES & ANCILLARY ITEMS