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Home My WebLink About19680 UST Closure Report Summary Chevron Station final January 31, 2025 File Number 24-19680 Kern County Construction, Inc PO Box 6096 Bakersfield, CA 93386 Subject: USTs Removal Summary Letter Chevron Station 2700 Oswell Street, Bakersfield, Kern County, CA Mr. Josh Simmons: This USTs Removal Summary Letter (Letter) has been prepared by Soils Engineering, Inc. (SEI) following the removal of three (1) 10,000-gallon regular (87) unleaded gasoline fuel underground storage tank (USTs), one (1) 10,000-gallon premium (91) unleaded gasoline fuel UST, and one (1) 10,000-gallon diesel fuel UST at the Chevron Station located at 2700 Oswell Street in Bakersfield, Kern County, CA (site). Further sampling is still required along fuel lines and the two dispenser islands for a USTs Closure Report to be issued and will be conducted at a future date. The three (3) USTs were single walled of fiber glass construction and were destroyed and removed from the site on January 24, 2025. This work was conducted in accordance with the Bakersfield Fire Department (BFD) UST Removal Guidelines and additional recommendations from Mark Rodriquez (Hazardous Materials Specialist). This Letter includes analytical results from soil samples collected, sampling location map, conclusions, and recommendations for the site. See Plate 1 and Plate 2 for a Location Map and Plot Plan for the site. SCOPE OF WORK CONDUCTED USTs Removal On January 24, 2025, the top of the three aforementioned USTs were exposed at the time of arrival. A lower explosion level (LEL) meter was on site to determine hydrocarbon vapor and oxygen levels. The LEL levels and oxygen levels were at safe concentrations prior to destruction and removal. The three (3) USTs were removed on January 24, 2025. An excavator with a bucket was used for the destruction of the three (3) USTs and placed on a truck and transported to an appropriate landfill. Proper documentation regarding the disposal of the rinsate and USTs will be provided upon the completion of the USTs Closure Report (future date). UST Removals & Closure Report File Number 24-19680 Chevron Station January 31, 2025 2700 Oswell St., Bakersfield, CA Page 2 Soil Sampling Beneath USTs 10k-gal Diesel UST On January 24, 2025, a total of four (4) soil samples were collected from the excavator bucket at the approximate depths of 2’ to 3.5’ beneath the bottom of the former 10k-gal Diesel UST. Two soil samples (USTD-N-2’ & USTD-N-3.5’) were collected on the north end of the tank. One soil sample (USTD-M-2’) was collected near the middle and another soil sample (USTD-S-2’) was collected on the south end. See Plate 3 Sampling Map for approximate locations of the samples. 10k-gal Premium (91) Unleaded Gas UST On January 24 and 28, 2025, a total of three (3) soil samples were collected from the excavator bucket or a hand auger at approximate depths of 2’ to 3’ beneath the bottom of the former 10,000-gallon premium (91) unleaded gasoline fuel UST. One sample (USTGP-M-2’) was collected north of the middle of the UST. One soil sample (USTGP-S-2’) was collected just north of the southern end and another soil sample (USTGP-S-3’) was collected on the south end. Sampling locations were adjusted to not undermine the northern wall where the excavator was. The southernmost sample was hand augured once shoring was placed. See Plate 3 Sampling Map for approximate locations of the samples. 10k-gal Regular (87) Unleaded Gas UST On January 28, 2025, a total of two (2) soil samples were collected using a hand auger at the approximate depth of 3’ beneath the bottom of the former 10,000-gallon regular (87) unleaded gasoline fuel UST after the placement of shoring. One soil sample (USTG-N-2’) was collected on the north end and another soil sample (USTG-S-2’) was collected on the south end. See Plate 3 Sampling Map for approximate locations of the samples. Stockpiles Sampling On January 28, 2025, a total of two composite soil samples were collected using a hand auger from 2 pea gravel stockpiles. The hand auger was advanced approximately two feet into the stockpile at multiple locations within their respective soil stockpile. A composite sample (STPW-Comp) was collected from the western stockpile and another composite sample (STPE- Comp) was collected from the eastern stockpile. See Plate 3 Sampling Map for approximate locations of the samples. The soil samples were sealed in steel sleeves, capped with a Teflon seal and plastic cap, labeled, and placed in a cooler with blue ice. The soil samples were delivered to Pace Analytical Services, a state certified lab, for rush analysis (2 or 5 day) on USTs samples and standard time frame (10 days) for stockpile samples and were analyzed for Total Petroleum Hydrocarbons (TPH) as diesel (TPHd), as gasoline (TPHg), and/or oil as (TPHo) by EPA Method 8015B, volatile organic compounds (VOCs) including benzene, toluene, ethylbenzene, total xylenes (BTEX) and Oxygenates by EPA Method 8260B, and for CAM 17 Metals by EPA Method 6010B/7174A depending on the location of the sample. UST Removals & Closure Report File Number 24-19680 Chevron Station January 31, 2025 2700 Oswell St., Bakersfield, CA Page 3 Analytical Results of USTs Soil Samples & Stockpile Samples Table 1 presents the analytical results of the soil samples collected and analyzed from the former USTs locations, and the stockpiles. At the former USTs area, all of the soil sample showed no elevated concentrations of TPHg, TPHd, and/or TPHo; VOCs & Oxygenates, and CAM 17 Metals were above the ESLs for a commercial site within this area. The soil samples collected within the stockpiles showed no elevated concentrations of TPHg, VOCs & Oxygenates, and CAM 17 Metals were above the ESLs for a commercial site. TPHd results are still pending. CONCLUSIONS & RECOMMENDATIONS Conclusions Based on field observation and analytical testing results SEI concludes the following: • The analytical results of the soil samples collected beneath the former USTs indicate that no release of diesel fuel and/or gasoline fuel has occurred within these areas. All of the analytical results are less than the RWQCB Environmental Screening Levels (ESLs) for a commercial site as shown on Table 1. • The analytical results of the soil samples collected from the Stockpiles indicate that no gasoline fuel concentrations are present in any of the stockpiles. Currently, all of the analytical results reported are less than the RWQCB Environmental Screening Levels (ESLs) for a commercial site as shown on Table 1. Diesel analytical results are pending for both stockpiles but are expected to be less than the RWQCB Environmental Screening Levels (ESLs) for a commercial site. Recommendations SEI recommends the following be conducted at this site: • No further additional environmental assessment is recommended within the former USTs area. • Further sampling within the fuel dispenser islands and associated piping from the dispensers to the USTS still needs to be conducted. All documentation for a UST Closure Report will be provided upon completion of all the field work, all analytical results are received, and other pertinent documents are received as well. UST Removals & Closure Report File Number 24-19680 Chevron Station January 31, 2025 2700 Oswell St., Bakersfield, CA Page 4 Please call Soils Engineering, Inc. at (661) 831-5100 if you have any questions concerning this Report. Sincerely, Robert J. Becker, P.G., C.E.G. Carlos Villegas, GIT Environmental Division Manager Staff Geologist Enclosures: Table 1, Soil Samples Analytical Results for USTs and Stockpiles Location Map, Plate 1 Plot Plan, Plate 2 Sampling Map, Plate 3 Analytical Reports Sample No.Sample Date SOIL SAMPLES Tank Removal Samples TPHg TPHd TPHo Benzene Toluene Ethylbenzene Xylenes TBA TAME MTBE ETBE DIPE Lead Other Metals USTG-N-3'1/28/2025 <1 NA NA <5 <5 <5 <10 <50 <5 <5 <5 <5 0.72 NARALs USTG-S-3'1/28/2025 <1 NA NA <5 <5 <5 <10 <50 <5 <5 <5 <5 4.9 NARALs USTGP-M-2'1/24/2025 <1 NA NA <5 <5 <5 <10 <50 <5 <5 <5 <5 0.86 NARALs USTGP-S-2'1/24/2025 <1 NA NA <5 <5 <5 <10 <50 <5 <5 <5 <5 0.96 NARALs USTGP-S-3'1/28/2025 <1 NA NA <5 <5 <5 <10 <50 <5 <5 <5 <5 1.3 NARALs USTD-N-2'1/24/2025 NA <1 9.5 <5 <5 <5 <10 <50 <5 <5 <5 <5 1.4 NARALs USTD-N-3.5'1/24/2025 NA <1 6.8 <5 <5 <5 <10 <50 <5 <5 <5 <5 0.96 NARALs USTD-M-2'1/24/2025 NA <1 <2 <5 <5 <5 <10 <50 <5 <5 <5 <5 0.84 NARALs USTD-S-2'1/24/2025 NA <1 5.9 <5 <5 <5 <10 <50 <5 <5 <5 <5 1.2 NARALs STPW-Comp 1/28/2025 <1 Pending Pending <5 <5 <5 <10 <50 <5 <5 <5 <5 2.10 NARALs STPE-Comp 1/28/2025 <1 Pending Pending <5 1.1 <5 <10 <50 <5 <5 <5 <5 3.80 NARALs *Regulatory Action Levels 2000 1200 180000 1400 5300000 26000 2500000 21000 320 Varies * = Regulatory Action Levels from Regional Water Quality Control Board - ESLs for Commercial Site, None Above Regulatory Action Levels = NARALs USTs Removal SOIL SAMPLES ANALYTICAL RESULTS for USTs and Stockpiles Chevron Station 2700 Oswell Street, Bakersfield, CA Volatile Organics EPA 8260B and Oxygenates (ppb) TPH (ppm) Stockpiles TABLE 1 Metals (ppm) Notes: ppm=parts per million (mg/kg), ppb = parts per billion (ug/kg), TPHg = Total Petroleum Hydrocarbons as gasoline, TPHd = Total Petroleum Hydrocarbons as diesel, TBA= Tert-butyl alchohol, DIPE= Diisopropyl ether, TAME= Tertiary-amyl methylether, ETBE= Ethyl tert-butyl ether, MTBE= Methyl tert-butyl ether, ND = None Detected above detection limits, NA = Not Analyzed, Bold = Elevated Concentration, LOCATION MAP PLATESOILS ENGINEERING, INC. 4400 Yeager Way Bakersfield, CA 93313 (661) 831 - 5100 1 USTs Removal Shell Station Omar’s Food Mart 161 W D St. Lemoore, CA DATE: 1/25 PROJECT: #19680 N 1216’ Approx. ScaleApprox.Scale Site Plot Plan PLATESOILS ENGINEERING, INC. 4400 Yeager Way Bakersfield, CA 93313 (661) 831 - 5100 2 Chevron Station 2700 Oswell Street Bakersfield, CA N Prem(91)-G10k gal.Prem(91)-G10k gal.Diesel-10k gal. Store CanopyReg(87)-G10k gal.Reg(87)-G10k gal. Fuel Dispensers DATE: 1/25 PROJECT: #19680 Auburn St.Oswell St. 71’ Approx. ScaleApprox.Scale PLATE3SOILS ENGINEERING, INC.4400 Yeager WayBakersfield, CA 93313(661) 831 - 5100Sampling MapNDATE: 1/25PROJECT: #19680Chevron Station2700 Oswell StreetBakersfield, CAPrem(91)-G10k gal.Prem(91)-G10k gal.Diesel10k gal.Diesel10k gal.Reg(87)-G10k gal.Reg(87)-G10k gal.FuelDispensersSoilSampleLocationSoilSampleLocationUSTG-N-3’USTGP-S-3’STPW-CompSTPE-CompUSTGP-S-3’USTGP-S-2’USTGP-M-2’USTD-N-2’USTD-M-2’USTD-N-3.5’USTD-S-2’25’Approx. ScaleApprox.ScaleUSTG-S-3’ Date of Report: 01/30/2025 Bob Becker Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Client Project:19680 KCC,I UST Pace Project: Pace Work Order: Enclosed are the results of analyses for samples received by the laboratory on 1/24/2025. If you have any questions concerning this report, please feel free to contact me. Invoice ID: 2501345 Soil B511197, B511425 Contact Person: Ragen Williams Sincerely, Client Service Rep Steven Bennett Operations Manager Certifications: CA ELAP #1186; NV #CA00014; OR ELAP #4032-001; AK UST101 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 1 of 58Report ID: 1001567115 Table of Contents Sample Information Chain of Custody and Cooler Receipt form................................................................................................................................................................ 3 Laboratory / Client Sample Cross Reference................................................................................................................................................................ 5 Sample Results 2501345-01 - USTGP-M-2' Volatile Organic Analysis (EPA Method 8260B)................................................................................................................................................................ 6 Purgeable Aromatics and Total Petroleum Hydrocarbons................................................................................................................................................................ 9 Total Concentrations (TTLC)................................................................................................................................................................ 10 2501345-02 - USTGP-S-2' Volatile Organic Analysis (EPA Method 8260B)................................................................................................................................................................ 11 Purgeable Aromatics and Total Petroleum Hydrocarbons................................................................................................................................................................ 14 Total Concentrations (TTLC)................................................................................................................................................................ 15 2501345-03 - USTD-M-2' Volatile Organic Analysis (EPA Method 8260B)................................................................................................................................................................ 16 Total Petroleum Hydrocarbons................................................................................................................................................................ 19 Total Concentrations (TTLC)................................................................................................................................................................ 20 2501345-04 - USTD-N-2' Volatile Organic Analysis (EPA Method 8260B)................................................................................................................................................................ 21 Total Petroleum Hydrocarbons................................................................................................................................................................ 24 Total Concentrations (TTLC)................................................................................................................................................................ 25 2501345-05 - USTD-N-3.5' Volatile Organic Analysis (EPA Method 8260B)................................................................................................................................................................ 26 Total Petroleum Hydrocarbons................................................................................................................................................................ 31 Total Concentrations (TTLC)................................................................................................................................................................ 32 2501345-06 - USTD-S-2' Volatile Organic Analysis (EPA Method 8260B)................................................................................................................................................................ 33 Total Petroleum Hydrocarbons................................................................................................................................................................ 38 Total Concentrations (TTLC)................................................................................................................................................................ 39 Quality Control Reports Volatile Organic Analysis (EPA Method 8260B) Method Blank Analysis................................................................................................................................................................ 40 Laboratory Control Sample................................................................................................................................................................ 45 Precision and Accuracy................................................................................................................................................................ 46 Purgeable Aromatics and Total Petroleum Hydrocarbons Method Blank Analysis................................................................................................................................................................ 48 Laboratory Control Sample................................................................................................................................................................ 49 Precision and Accuracy................................................................................................................................................................ 50 Total Petroleum Hydrocarbons Method Blank Analysis................................................................................................................................................................ 51 Laboratory Control Sample................................................................................................................................................................ 52 Precision and Accuracy................................................................................................................................................................ 53 Total Concentrations (TTLC) Method Blank Analysis................................................................................................................................................................ 54 Laboratory Control Sample................................................................................................................................................................ 55 Precision and Accuracy................................................................................................................................................................ 56 Notes Notes and Definitions................................................................................................................................................................ 58 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 2 of 58Report ID: 1001567115 Chain of Custody and Cooler Receipt Form for 2501345 Page 1 of 2 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 3 of 58Report ID: 1001567115 Chain of Custody and Cooler Receipt Form for 2501345 Page 2 of 2 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 4 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Laboratory / Client Sample Cross Reference Laboratory Client Sample Information 2501345-01 Sampling Point: Sampling Location: Project Number: COC Number:--- --- --- USTGP-M-2' Receive Date: Sampling Date: Sample Depth: Lab Matrix: --- 01/24/2025 16:39 01/24/2025 13:20 Solids Carlos Enriquez VillegasSampled By:Sample Type:Soil 2501345-02 Sampling Point: Sampling Location: Project Number: COC Number:--- --- --- USTGP-S-2' Receive Date: Sampling Date: Sample Depth: Lab Matrix: --- 01/24/2025 16:39 01/24/2025 13:25 Solids Carlos Enriquez VillegasSampled By:Sample Type:Soil 2501345-03 Sampling Point: Sampling Location: Project Number: COC Number:--- --- --- USTD-M-2' Receive Date: Sampling Date: Sample Depth: Lab Matrix: --- 01/24/2025 16:39 01/24/2025 13:40 Solids Carlos Enriquez VillegasSampled By:Sample Type:Soil 2501345-04 Sampling Point: Sampling Location: Project Number: COC Number:--- --- --- USTD-N-2' Receive Date: Sampling Date: Sample Depth: Lab Matrix: --- 01/24/2025 16:39 01/24/2025 14:00 Solids Carlos Enriquez VillegasSampled By:Sample Type:Soil 2501345-05 Sampling Point: Sampling Location: Project Number: COC Number:--- --- --- USTD-N-3.5' Receive Date: Sampling Date: Sample Depth: Lab Matrix: --- 01/24/2025 16:39 01/24/2025 14:10 Solids Carlos Enriquez VillegasSampled By:Sample Type:Soil 2501345-06 Sampling Point: Sampling Location: Project Number: COC Number:--- --- --- USTD-S-2' Receive Date: Sampling Date: Sample Depth: Lab Matrix: --- 01/24/2025 16:39 01/24/2025 14:20 Solids Carlos Enriquez VillegasSampled By:Sample Type:Soil The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 5 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Pace Sample ID:2501345-01 Client Sample Name: Constituent Result Units Method Limits Quals TTLC Lab Volatile Organic Analysis (EPA Method 8260B) DCN USTGP-M-2', 1/24/2025 1:20:00PM, Carlos Enriquez Villegas MDLPQL Benzene mg/kg 0.00067ND0.0050 EPA-8260B 1 Bromobenzene mg/kg 0.00087ND0.0050 EPA-8260B 1 Bromochloromethane mg/kg 0.00081ND0.0050 EPA-8260B 1 Bromodichloromethane mg/kg 0.00078ND0.0050 EPA-8260B 1 Bromoform mg/kg 0.00070ND0.0050 EPA-8260B 1 Bromomethane mg/kg 0.0017ND0.0050 EPA-8260B 1 n-Butylbenzene mg/kg 0.00076ND0.0050 EPA-8260B 1 sec-Butylbenzene mg/kg 0.00071ND0.0050 EPA-8260B 1 tert-Butylbenzene mg/kg 0.00085ND0.0050 EPA-8260B 1 Carbon tetrachloride mg/kg 0.00078ND0.0050 EPA-8260B 1 Chlorobenzene mg/kg 0.00077ND0.0050 EPA-8260B 1 Chloroethane mg/kg 0.0011ND0.0050 EPA-8260B 1 Chloroform mg/kg 0.00090ND0.0050 EPA-8260B 1 Chloromethane mg/kg 0.0011ND0.0050 EPA-8260B 1 2-Chlorotoluene mg/kg 0.00087ND0.0050 EPA-8260B 1 4-Chlorotoluene mg/kg 0.00070ND0.0050 EPA-8260B 1 Dibromochloromethane mg/kg 0.00080ND0.0050 EPA-8260B 1 1,2-Dibromo-3-chloropropane mg/kg 0.00096ND0.0050 EPA-8260B 1 1,2-Dibromoethane mg/kg 0.00082ND0.0050 EPA-8260B 1 Dibromomethane mg/kg 0.0014ND0.0050 EPA-8260B 1 1,2-Dichlorobenzene mg/kg 0.00079ND0.0050 EPA-8260B 1 1,4-Dichlorobenzene mg/kg 0.00073ND0.0050 EPA-8260B 1 Dichlorodifluoromethane mg/kg 0.00079ND0.0050 EPA-8260B 1 1,1-Dichloroethane mg/kg 0.00064ND0.0050 EPA-8260B 1 1,2-Dichloroethane mg/kg 0.00073ND0.0050 EPA-8260B 1 1,1-Dichloroethene mg/kg 0.0011ND0.0050 EPA-8260B 1 cis-1,2-Dichloroethene mg/kg 0.00054ND0.0050 EPA-8260B 1 trans-1,2-Dichloroethene mg/kg 0.0037ND0.0050 EPA-8260B 1 Total 1,2-Dichloroethene mg/kg 0.0043ND0.010 EPA-8260B 1 1,2-Dichloropropane mg/kg 0.00080ND0.0050 EPA-8260B 1 1,3-Dichloropropane mg/kg 0.00067ND0.0050 EPA-8260B 1 2,2-Dichloropropane mg/kg 0.00067ND0.0050 EPA-8260B 1 1,1-Dichloropropene mg/kg 0.00067ND0.0050 EPA-8260B 1 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 6 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Pace Sample ID:2501345-01 Client Sample Name: Constituent Result Units Method Limits Quals TTLC Lab Volatile Organic Analysis (EPA Method 8260B) DCN USTGP-M-2', 1/24/2025 1:20:00PM, Carlos Enriquez Villegas MDLPQL cis-1,3-Dichloropropene mg/kg 0.00058ND0.0050 EPA-8260B 1 trans-1,3-Dichloropropene mg/kg 0.00066ND0.0050 EPA-8260B 1 Total 1,3-Dichloropropene mg/kg 0.0013ND0.010 EPA-8260B 1 Ethylbenzene mg/kg 0.00069ND0.0050 EPA-8260B 1 Hexachlorobutadiene mg/kg 0.00067ND0.0050 EPA-8260B 1 Isopropylbenzene mg/kg 0.00080ND0.0050 EPA-8260B 1 p-Isopropyltoluene mg/kg 0.00059ND0.0050 EPA-8260B 1 Methylene chloride mg/kg 0.0011ND0.010 EPA-8260B 1 Methyl t-butyl ether mg/kg 0.00056ND0.0050 EPA-8260B 1 Naphthalene mg/kg 0.00099ND0.0050 EPA-8260B 1 n-Propylbenzene mg/kg 0.00071ND0.0050 EPA-8260B 1 Styrene mg/kg 0.00062ND0.0050 EPA-8260B 1 1,1,1,2-Tetrachloroethane mg/kg 0.00095ND0.0050 EPA-8260B 1 1,1,2,2-Tetrachloroethane mg/kg 0.00084ND0.0050 EPA-8260B 1 Tetrachloroethene mg/kg 0.00097ND0.0050 EPA-8260B 1 Toluene mg/kg 0.00069ND0.0050 EPA-8260B 1 1,2,3-Trichlorobenzene mg/kg 0.0015ND0.0050 EPA-8260B 1 1,2,4-Trichlorobenzene mg/kg 0.0014ND0.0050 EPA-8260B 1 1,1,1-Trichloroethane mg/kg 0.00067ND0.0050 EPA-8260B 1 1,1,2-Trichloroethane mg/kg 0.00094ND0.0050 EPA-8260B 1 Trichloroethene mg/kg 0.00074ND0.0050 EPA-8260B 12040 Trichlorofluoromethane mg/kg 0.0015ND0.0050 EPA-8260B 1 1,2,3-Trichloropropane mg/kg 0.0019ND0.0050 EPA-8260B 1 1,1,2-Trichloro-1,2,2-trifluoroethane mg/kg 0.0010ND0.0050 EPA-8260B 1 1,2,4-Trimethylbenzene mg/kg 0.00080ND0.0050 EPA-8260B 1 1,3,5-Trimethylbenzene mg/kg 0.00066ND0.0050 EPA-8260B 1 Vinyl chloride mg/kg 0.00059ND0.0050 EPA-8260B 1 Total Xylenes mg/kg 0.0025ND0.010 EPA-8260B 1 t-Amyl Methyl ether mg/kg 0.00050ND0.0050 EPA-8260B 1 t-Butyl alcohol mg/kg 0.012ND0.050 EPA-8260B 1 Diisopropyl ether mg/kg 0.00057ND0.0050 EPA-8260B 1 Ethyl t-butyl ether mg/kg 0.00050ND0.0050 EPA-8260B 1 1,2-Dichloroethane-d4 (Surrogate)%70 - 121 (LCL - UCL)111 EPA-8260B 1 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 7 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Pace Sample ID:2501345-01 Client Sample Name: Constituent Result Units Method Limits Quals TTLC Lab Volatile Organic Analysis (EPA Method 8260B) DCN USTGP-M-2', 1/24/2025 1:20:00PM, Carlos Enriquez Villegas MDLPQL Toluene-d8 (Surrogate)%81 - 117 (LCL - UCL)100 EPA-8260B 1 4-Bromofluorobenzene (Surrogate)%74 - 121 (LCL - UCL)104 EPA-8260B 1 QC Batch IDDilutionInstrumentAnalystDate/Time Run Prep DateMethodDCN Prep Method 01/27/25 05:38 01/27/25 17:35 EAB MS-V18 1 B204713EPA-8260B 1 EPA 5030 Soil MS DCN = Data Continuation Number The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 8 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Pace Sample ID:2501345-01 Client Sample Name: Constituent Result Units Method Bias Quals MB Lab Purgeable Aromatics and Total Petroleum Hydrocarbons DCN USTGP-M-2', 1/24/2025 1:20:00PM, Carlos Enriquez Villegas MDLPQL Gasoline Range Organics (C4 - C12)mg/kg 0.42ND1.0 EPA-8015B 1ND a,a,a-Trifluorotoluene (FID Surrogate)%70 - 130 (LCL - UCL)128 EPA-8015B 1 QC Batch IDDilutionInstrumentAnalystDate/Time Run Prep DateMethodDCN Prep Method 01/27/25 10:27 01/28/25 00:08 TDH GC-V8 1 B204999EPA-8015B 1 EPA 5030 Soil GC DCN = Data Continuation Number The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 9 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Pace Sample ID:2501345-01 Client Sample Name: Constituent Result Units Method Limits Quals TTLC Lab Total Concentrations (TTLC) DCN USTGP-M-2', 1/24/2025 1:20:00PM, Carlos Enriquez Villegas MDLPQL Antimony mg/kg 0.30ND4.5 EPA-6010B 1500 Arsenic mg/kg 0.368.2 0.91 EPA-6010B 1500 Barium mg/kg 0.16640.45 EPA-6010B 110000 Beryllium mg/kg J0.0430.067 0.45 EPA-6010B 175 Cadmium mg/kg J0.0470.068 0.45 EPA-6010B 1100 Chromium mg/kg 0.0453.2 0.45 EPA-6010B 12500 Cobalt mg/kg J0.0891.6 2.3 EPA-6010B 18000 Copper mg/kg 0.0452.7 0.91 EPA-6010B 12500 Lead mg/kg J0.370.86 2.3 EPA-6010B 11000 Mercury mg/kg J0.0160.10 0.16 EPA-7471A 220 Molybdenum mg/kg J0.0450.45 2.3 EPA-6010B 13500 Nickel mg/kg 0.141.7 0.45 EPA-6010B 12000 Selenium mg/kg 0.89ND0.91 EPA-6010B 1100 Silver mg/kg 0.061ND0.45 EPA-6010B 1500 Thallium mg/kg 0.58ND4.5 EPA-6010B 1700 Vanadium mg/kg 0.10190.45 EPA-6010B 12400 Zinc mg/kg 0.079162.3 EPA-6010B 15000 QC Batch IDDilutionInstrumentAnalystDate/Time Run Prep DateMethodDCN Prep Method 01/27/25 09:50 01/27/25 19:43 JRG ICP5 0.909 B205008EPA-6010B 1 EPA 3050B 01/30/25 08:30 01/30/25 12:10 TMT CETAC3 0.977 B205179EPA-7471A 2 EPA 7471A DCN = Data Continuation Number The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 10 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Pace Sample ID:2501345-02 Client Sample Name: Constituent Result Units Method Limits Quals TTLC Lab Volatile Organic Analysis (EPA Method 8260B) DCN USTGP-S-2', 1/24/2025 1:25:00PM, Carlos Enriquez Villegas MDLPQL Benzene mg/kg 0.00067ND0.0050 EPA-8260B 1 Bromobenzene mg/kg 0.00087ND0.0050 EPA-8260B 1 Bromochloromethane mg/kg 0.00081ND0.0050 EPA-8260B 1 Bromodichloromethane mg/kg 0.00078ND0.0050 EPA-8260B 1 Bromoform mg/kg 0.00070ND0.0050 EPA-8260B 1 Bromomethane mg/kg 0.0017ND0.0050 EPA-8260B 1 n-Butylbenzene mg/kg 0.00076ND0.0050 EPA-8260B 1 sec-Butylbenzene mg/kg 0.00071ND0.0050 EPA-8260B 1 tert-Butylbenzene mg/kg 0.00085ND0.0050 EPA-8260B 1 Carbon tetrachloride mg/kg 0.00078ND0.0050 EPA-8260B 1 Chlorobenzene mg/kg 0.00077ND0.0050 EPA-8260B 1 Chloroethane mg/kg 0.0011ND0.0050 EPA-8260B 1 Chloroform mg/kg 0.00090ND0.0050 EPA-8260B 1 Chloromethane mg/kg 0.0011ND0.0050 EPA-8260B 1 2-Chlorotoluene mg/kg 0.00087ND0.0050 EPA-8260B 1 4-Chlorotoluene mg/kg 0.00070ND0.0050 EPA-8260B 1 Dibromochloromethane mg/kg 0.00080ND0.0050 EPA-8260B 1 1,2-Dibromo-3-chloropropane mg/kg 0.00096ND0.0050 EPA-8260B 1 1,2-Dibromoethane mg/kg 0.00082ND0.0050 EPA-8260B 1 Dibromomethane mg/kg 0.0014ND0.0050 EPA-8260B 1 1,2-Dichlorobenzene mg/kg 0.00079ND0.0050 EPA-8260B 1 1,4-Dichlorobenzene mg/kg 0.00073ND0.0050 EPA-8260B 1 Dichlorodifluoromethane mg/kg 0.00079ND0.0050 EPA-8260B 1 1,1-Dichloroethane mg/kg 0.00064ND0.0050 EPA-8260B 1 1,2-Dichloroethane mg/kg 0.00073ND0.0050 EPA-8260B 1 1,1-Dichloroethene mg/kg 0.0011ND0.0050 EPA-8260B 1 cis-1,2-Dichloroethene mg/kg 0.00054ND0.0050 EPA-8260B 1 trans-1,2-Dichloroethene mg/kg 0.0037ND0.0050 EPA-8260B 1 Total 1,2-Dichloroethene mg/kg 0.0043ND0.010 EPA-8260B 1 1,2-Dichloropropane mg/kg 0.00080ND0.0050 EPA-8260B 1 1,3-Dichloropropane mg/kg 0.00067ND0.0050 EPA-8260B 1 2,2-Dichloropropane mg/kg 0.00067ND0.0050 EPA-8260B 1 1,1-Dichloropropene mg/kg 0.00067ND0.0050 EPA-8260B 1 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 11 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Pace Sample ID:2501345-02 Client Sample Name: Constituent Result Units Method Limits Quals TTLC Lab Volatile Organic Analysis (EPA Method 8260B) DCN USTGP-S-2', 1/24/2025 1:25:00PM, Carlos Enriquez Villegas MDLPQL cis-1,3-Dichloropropene mg/kg 0.00058ND0.0050 EPA-8260B 1 trans-1,3-Dichloropropene mg/kg 0.00066ND0.0050 EPA-8260B 1 Total 1,3-Dichloropropene mg/kg 0.0013ND0.010 EPA-8260B 1 Ethylbenzene mg/kg 0.00069ND0.0050 EPA-8260B 1 Hexachlorobutadiene mg/kg 0.00067ND0.0050 EPA-8260B 1 Isopropylbenzene mg/kg 0.00080ND0.0050 EPA-8260B 1 p-Isopropyltoluene mg/kg 0.00059ND0.0050 EPA-8260B 1 Methylene chloride mg/kg 0.0011ND0.010 EPA-8260B 1 Methyl t-butyl ether mg/kg 0.00056ND0.0050 EPA-8260B 1 Naphthalene mg/kg 0.00099ND0.0050 EPA-8260B 1 n-Propylbenzene mg/kg 0.00071ND0.0050 EPA-8260B 1 Styrene mg/kg 0.00062ND0.0050 EPA-8260B 1 1,1,1,2-Tetrachloroethane mg/kg 0.00095ND0.0050 EPA-8260B 1 1,1,2,2-Tetrachloroethane mg/kg 0.00084ND0.0050 EPA-8260B 1 Tetrachloroethene mg/kg 0.00097ND0.0050 EPA-8260B 1 Toluene mg/kg 0.00069ND0.0050 EPA-8260B 1 1,2,3-Trichlorobenzene mg/kg 0.0015ND0.0050 EPA-8260B 1 1,2,4-Trichlorobenzene mg/kg 0.0014ND0.0050 EPA-8260B 1 1,1,1-Trichloroethane mg/kg 0.00067ND0.0050 EPA-8260B 1 1,1,2-Trichloroethane mg/kg 0.00094ND0.0050 EPA-8260B 1 Trichloroethene mg/kg 0.00074ND0.0050 EPA-8260B 12040 Trichlorofluoromethane mg/kg 0.0015ND0.0050 EPA-8260B 1 1,2,3-Trichloropropane mg/kg 0.0019ND0.0050 EPA-8260B 1 1,1,2-Trichloro-1,2,2-trifluoroethane mg/kg 0.0010ND0.0050 EPA-8260B 1 1,2,4-Trimethylbenzene mg/kg 0.00080ND0.0050 EPA-8260B 1 1,3,5-Trimethylbenzene mg/kg 0.00066ND0.0050 EPA-8260B 1 Vinyl chloride mg/kg 0.00059ND0.0050 EPA-8260B 1 Total Xylenes mg/kg 0.0025ND0.010 EPA-8260B 1 t-Amyl Methyl ether mg/kg 0.00050ND0.0050 EPA-8260B 1 t-Butyl alcohol mg/kg 0.012ND0.050 EPA-8260B 1 Diisopropyl ether mg/kg 0.00057ND0.0050 EPA-8260B 1 Ethyl t-butyl ether mg/kg 0.00050ND0.0050 EPA-8260B 1 1,2-Dichloroethane-d4 (Surrogate)%70 - 121 (LCL - UCL)110 EPA-8260B 1 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 12 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Pace Sample ID:2501345-02 Client Sample Name: Constituent Result Units Method Limits Quals TTLC Lab Volatile Organic Analysis (EPA Method 8260B) DCN USTGP-S-2', 1/24/2025 1:25:00PM, Carlos Enriquez Villegas MDLPQL Toluene-d8 (Surrogate)%81 - 117 (LCL - UCL)99.3 EPA-8260B 1 4-Bromofluorobenzene (Surrogate)%74 - 121 (LCL - UCL)101 EPA-8260B 1 QC Batch IDDilutionInstrumentAnalystDate/Time Run Prep DateMethodDCN Prep Method 01/27/25 05:38 01/27/25 12:44 EAB MS-V18 1 B204943EPA-8260B 1 EPA 5030 Soil MS DCN = Data Continuation Number The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 13 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Pace Sample ID:2501345-02 Client Sample Name: Constituent Result Units Method Bias Quals MB Lab Purgeable Aromatics and Total Petroleum Hydrocarbons DCN USTGP-S-2', 1/24/2025 1:25:00PM, Carlos Enriquez Villegas MDLPQL Gasoline Range Organics (C4 - C12)mg/kg 0.42ND1.0 EPA-8015B 1ND a,a,a-Trifluorotoluene (FID Surrogate)%70 - 130 (LCL - UCL)125 EPA-8015B 1 QC Batch IDDilutionInstrumentAnalystDate/Time Run Prep DateMethodDCN Prep Method 01/27/25 10:27 01/28/25 00:32 TDH GC-V8 1.014 B204999EPA-8015B 1 EPA 5030 Soil GC DCN = Data Continuation Number The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 14 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Pace Sample ID:2501345-02 Client Sample Name: Constituent Result Units Method Limits Quals TTLC Lab Total Concentrations (TTLC) DCN USTGP-S-2', 1/24/2025 1:25:00PM, Carlos Enriquez Villegas MDLPQL Antimony mg/kg 0.33ND5.0 EPA-6010B 1500 Arsenic mg/kg 0.406.7 1.0 EPA-6010B 1500 Barium mg/kg 0.18450.50 EPA-6010B 110000 Beryllium mg/kg J0.0470.11 0.50 EPA-6010B 175 Cadmium mg/kg J0.0520.075 0.50 EPA-6010B 1100 Chromium mg/kg 0.0503.9 0.50 EPA-6010B 12500 Cobalt mg/kg J0.0982.4 2.5 EPA-6010B 18000 Copper mg/kg 0.0503.1 1.0 EPA-6010B 12500 Lead mg/kg J0.410.96 2.5 EPA-6010B 11000 Mercury mg/kg 0.0160.18 0.16 EPA-7471A 220 Molybdenum mg/kg J0.0500.35 2.5 EPA-6010B 13500 Nickel mg/kg 0.152.5 0.50 EPA-6010B 12000 Selenium mg/kg 0.98ND1.0 EPA-6010B 1100 Silver mg/kg 0.067ND0.50 EPA-6010B 1500 Thallium mg/kg 0.64ND5.0 EPA-6010B 1700 Vanadium mg/kg 0.11170.50 EPA-6010B 12400 Zinc mg/kg 0.087182.5 EPA-6010B 15000 QC Batch IDDilutionInstrumentAnalystDate/Time Run Prep DateMethodDCN Prep Method 01/27/25 09:50 01/27/25 19:45 JRG ICP5 0.935 B205008EPA-6010B 1 EPA 3050B 01/30/25 08:30 01/30/25 12:12 TMT CETAC3 1.008 B205179EPA-7471A 2 EPA 7471A DCN = Data Continuation Number The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 15 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Pace Sample ID:2501345-03 Client Sample Name: Constituent Result Units Method Limits Quals TTLC Lab Volatile Organic Analysis (EPA Method 8260B) DCN USTD-M-2', 1/24/2025 1:40:00PM, Carlos Enriquez Villegas MDLPQL Benzene mg/kg 0.00067ND0.0050 EPA-8260B 1 Bromobenzene mg/kg 0.00087ND0.0050 EPA-8260B 1 Bromochloromethane mg/kg 0.00081ND0.0050 EPA-8260B 1 Bromodichloromethane mg/kg 0.00078ND0.0050 EPA-8260B 1 Bromoform mg/kg 0.00070ND0.0050 EPA-8260B 1 Bromomethane mg/kg 0.0017ND0.0050 EPA-8260B 1 n-Butylbenzene mg/kg 0.00076ND0.0050 EPA-8260B 1 sec-Butylbenzene mg/kg 0.00071ND0.0050 EPA-8260B 1 tert-Butylbenzene mg/kg 0.00085ND0.0050 EPA-8260B 1 Carbon tetrachloride mg/kg 0.00078ND0.0050 EPA-8260B 1 Chlorobenzene mg/kg 0.00077ND0.0050 EPA-8260B 1 Chloroethane mg/kg 0.0011ND0.0050 EPA-8260B 1 Chloroform mg/kg 0.00090ND0.0050 EPA-8260B 1 Chloromethane mg/kg 0.0011ND0.0050 EPA-8260B 1 2-Chlorotoluene mg/kg 0.00087ND0.0050 EPA-8260B 1 4-Chlorotoluene mg/kg 0.00070ND0.0050 EPA-8260B 1 Dibromochloromethane mg/kg 0.00080ND0.0050 EPA-8260B 1 1,2-Dibromo-3-chloropropane mg/kg 0.00096ND0.0050 EPA-8260B 1 1,2-Dibromoethane mg/kg 0.00082ND0.0050 EPA-8260B 1 Dibromomethane mg/kg 0.0014ND0.0050 EPA-8260B 1 1,2-Dichlorobenzene mg/kg 0.00079ND0.0050 EPA-8260B 1 1,4-Dichlorobenzene mg/kg 0.00073ND0.0050 EPA-8260B 1 Dichlorodifluoromethane mg/kg 0.00079ND0.0050 EPA-8260B 1 1,1-Dichloroethane mg/kg 0.00064ND0.0050 EPA-8260B 1 1,2-Dichloroethane mg/kg 0.00073ND0.0050 EPA-8260B 1 1,1-Dichloroethene mg/kg 0.0011ND0.0050 EPA-8260B 1 cis-1,2-Dichloroethene mg/kg 0.00054ND0.0050 EPA-8260B 1 trans-1,2-Dichloroethene mg/kg 0.0037ND0.0050 EPA-8260B 1 Total 1,2-Dichloroethene mg/kg 0.0043ND0.010 EPA-8260B 1 1,2-Dichloropropane mg/kg 0.00080ND0.0050 EPA-8260B 1 1,3-Dichloropropane mg/kg 0.00067ND0.0050 EPA-8260B 1 2,2-Dichloropropane mg/kg 0.00067ND0.0050 EPA-8260B 1 1,1-Dichloropropene mg/kg 0.00067ND0.0050 EPA-8260B 1 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 16 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Pace Sample ID:2501345-03 Client Sample Name: Constituent Result Units Method Limits Quals TTLC Lab Volatile Organic Analysis (EPA Method 8260B) DCN USTD-M-2', 1/24/2025 1:40:00PM, Carlos Enriquez Villegas MDLPQL cis-1,3-Dichloropropene mg/kg 0.00058ND0.0050 EPA-8260B 1 trans-1,3-Dichloropropene mg/kg 0.00066ND0.0050 EPA-8260B 1 Total 1,3-Dichloropropene mg/kg 0.0013ND0.010 EPA-8260B 1 Ethylbenzene mg/kg 0.00069ND0.0050 EPA-8260B 1 Hexachlorobutadiene mg/kg 0.00067ND0.0050 EPA-8260B 1 Isopropylbenzene mg/kg 0.00080ND0.0050 EPA-8260B 1 p-Isopropyltoluene mg/kg 0.00059ND0.0050 EPA-8260B 1 Methylene chloride mg/kg 0.0011ND0.010 EPA-8260B 1 Methyl t-butyl ether mg/kg 0.00056ND0.0050 EPA-8260B 1 Naphthalene mg/kg 0.00099ND0.0050 EPA-8260B 1 n-Propylbenzene mg/kg 0.00071ND0.0050 EPA-8260B 1 Styrene mg/kg 0.00062ND0.0050 EPA-8260B 1 1,1,1,2-Tetrachloroethane mg/kg 0.00095ND0.0050 EPA-8260B 1 1,1,2,2-Tetrachloroethane mg/kg 0.00084ND0.0050 EPA-8260B 1 Tetrachloroethene mg/kg 0.00097ND0.0050 EPA-8260B 1 Toluene mg/kg 0.00069ND0.0050 EPA-8260B 1 1,2,3-Trichlorobenzene mg/kg 0.0015ND0.0050 EPA-8260B 1 1,2,4-Trichlorobenzene mg/kg 0.0014ND0.0050 EPA-8260B 1 1,1,1-Trichloroethane mg/kg 0.00067ND0.0050 EPA-8260B 1 1,1,2-Trichloroethane mg/kg 0.00094ND0.0050 EPA-8260B 1 Trichloroethene mg/kg 0.00074ND0.0050 EPA-8260B 12040 Trichlorofluoromethane mg/kg 0.0015ND0.0050 EPA-8260B 1 1,2,3-Trichloropropane mg/kg 0.0019ND0.0050 EPA-8260B 1 1,1,2-Trichloro-1,2,2-trifluoroethane mg/kg 0.0010ND0.0050 EPA-8260B 1 1,2,4-Trimethylbenzene mg/kg 0.00080ND0.0050 EPA-8260B 1 1,3,5-Trimethylbenzene mg/kg 0.00066ND0.0050 EPA-8260B 1 Vinyl chloride mg/kg 0.00059ND0.0050 EPA-8260B 1 Total Xylenes mg/kg 0.0025ND0.010 EPA-8260B 1 t-Amyl Methyl ether mg/kg 0.00050ND0.0050 EPA-8260B 1 t-Butyl alcohol mg/kg 0.012ND0.050 EPA-8260B 1 Diisopropyl ether mg/kg 0.00057ND0.0050 EPA-8260B 1 Ethyl t-butyl ether mg/kg 0.00050ND0.0050 EPA-8260B 1 1,2-Dichloroethane-d4 (Surrogate)%70 - 121 (LCL - UCL)115 EPA-8260B 1 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 17 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Pace Sample ID:2501345-03 Client Sample Name: Constituent Result Units Method Limits Quals TTLC Lab Volatile Organic Analysis (EPA Method 8260B) DCN USTD-M-2', 1/24/2025 1:40:00PM, Carlos Enriquez Villegas MDLPQL Toluene-d8 (Surrogate)%81 - 117 (LCL - UCL)100 EPA-8260B 1 4-Bromofluorobenzene (Surrogate)%74 - 121 (LCL - UCL)103 EPA-8260B 1 QC Batch IDDilutionInstrumentAnalystDate/Time Run Prep DateMethodDCN Prep Method 01/27/25 05:38 01/27/25 17:59 EAB MS-V18 1 B204713EPA-8260B 1 EPA 5030 Soil MS DCN = Data Continuation Number The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 18 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Pace Sample ID:2501345-03 Client Sample Name: Constituent Result Units Method Bias Quals MB Lab Total Petroleum Hydrocarbons DCN USTD-M-2', 1/24/2025 1:40:00PM, Carlos Enriquez Villegas MDLPQL TPH - Diesel Range Organics (C12 - C22) mg/kg 0.70ND1.0 EPA-8015B 1ND TPH - Oil Range Organics (C23 - C32)mg/kg 0.98ND2.0 EPA-8015B 1ND Tetracosane (Surrogate)%40 - 130 (LCL - UCL)124 EPA-8015B 1 QC Batch IDDilutionInstrumentAnalystDate/Time Run Prep DateMethodDCN Prep Method 01/27/25 17:00 01/30/25 15:57 BUP GC-19 0.990 B205022EPA-8015B 1 EPA 3546 DCN = Data Continuation Number The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 19 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Pace Sample ID:2501345-03 Client Sample Name: Constituent Result Units Method Limits Quals TTLC Lab Total Concentrations (TTLC) DCN USTD-M-2', 1/24/2025 1:40:00PM, Carlos Enriquez Villegas MDLPQL Antimony mg/kg 0.33ND5.0 EPA-6010B 1500 Arsenic mg/kg 0.40131.0 EPA-6010B 1500 Barium mg/kg 0.18510.50 EPA-6010B 110000 Beryllium mg/kg J0.0470.095 0.50 EPA-6010B 175 Cadmium mg/kg 0.052ND0.50 EPA-6010B 1100 Chromium mg/kg 0.0503.0 0.50 EPA-6010B 12500 Cobalt mg/kg J0.0981.3 2.5 EPA-6010B 18000 Copper mg/kg 0.0502.5 1.0 EPA-6010B 12500 Lead mg/kg J0.410.84 2.5 EPA-6010B 11000 Mercury mg/kg J0.0160.040 0.16 EPA-7471A 220 Molybdenum mg/kg J0.0500.37 2.5 EPA-6010B 13500 Nickel mg/kg 0.152.6 0.50 EPA-6010B 12000 Selenium mg/kg 0.98ND1.0 EPA-6010B 1100 Silver mg/kg 0.067ND0.50 EPA-6010B 1500 Thallium mg/kg 0.64ND5.0 EPA-6010B 1700 Vanadium mg/kg 0.11190.50 EPA-6010B 12400 Zinc mg/kg 0.0877.6 2.5 EPA-6010B 15000 QC Batch IDDilutionInstrumentAnalystDate/Time Run Prep DateMethodDCN Prep Method 01/27/25 09:50 01/27/25 19:50 JRG ICP5 0.943 B205008EPA-6010B 1 EPA 3050B 01/30/25 08:30 01/30/25 12:13 TMT CETAC3 0.977 B205179EPA-7471A 2 EPA 7471A DCN = Data Continuation Number The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 20 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Pace Sample ID:2501345-04 Client Sample Name: Constituent Result Units Method Limits Quals TTLC Lab Volatile Organic Analysis (EPA Method 8260B) DCN USTD-N-2', 1/24/2025 2:00:00PM, Carlos Enriquez Villegas MDLPQL Benzene mg/kg 0.00067ND0.0050 EPA-8260B 1 Bromobenzene mg/kg 0.00087ND0.0050 EPA-8260B 1 Bromochloromethane mg/kg 0.00081ND0.0050 EPA-8260B 1 Bromodichloromethane mg/kg 0.00078ND0.0050 EPA-8260B 1 Bromoform mg/kg 0.00070ND0.0050 EPA-8260B 1 Bromomethane mg/kg 0.0017ND0.0050 EPA-8260B 1 n-Butylbenzene mg/kg 0.00076ND0.0050 EPA-8260B 1 sec-Butylbenzene mg/kg 0.00071ND0.0050 EPA-8260B 1 tert-Butylbenzene mg/kg 0.00085ND0.0050 EPA-8260B 1 Carbon tetrachloride mg/kg 0.00078ND0.0050 EPA-8260B 1 Chlorobenzene mg/kg 0.00077ND0.0050 EPA-8260B 1 Chloroethane mg/kg 0.0011ND0.0050 EPA-8260B 1 Chloroform mg/kg 0.00090ND0.0050 EPA-8260B 1 Chloromethane mg/kg 0.0011ND0.0050 EPA-8260B 1 2-Chlorotoluene mg/kg 0.00087ND0.0050 EPA-8260B 1 4-Chlorotoluene mg/kg 0.00070ND0.0050 EPA-8260B 1 Dibromochloromethane mg/kg 0.00080ND0.0050 EPA-8260B 1 1,2-Dibromo-3-chloropropane mg/kg 0.00096ND0.0050 EPA-8260B 1 1,2-Dibromoethane mg/kg 0.00082ND0.0050 EPA-8260B 1 Dibromomethane mg/kg 0.0014ND0.0050 EPA-8260B 1 1,2-Dichlorobenzene mg/kg 0.00079ND0.0050 EPA-8260B 1 1,4-Dichlorobenzene mg/kg 0.00073ND0.0050 EPA-8260B 1 Dichlorodifluoromethane mg/kg 0.00079ND0.0050 EPA-8260B 1 1,1-Dichloroethane mg/kg 0.00064ND0.0050 EPA-8260B 1 1,2-Dichloroethane mg/kg 0.00073ND0.0050 EPA-8260B 1 1,1-Dichloroethene mg/kg 0.0011ND0.0050 EPA-8260B 1 cis-1,2-Dichloroethene mg/kg 0.00054ND0.0050 EPA-8260B 1 trans-1,2-Dichloroethene mg/kg 0.0037ND0.0050 EPA-8260B 1 Total 1,2-Dichloroethene mg/kg 0.0043ND0.010 EPA-8260B 1 1,2-Dichloropropane mg/kg 0.00080ND0.0050 EPA-8260B 1 1,3-Dichloropropane mg/kg 0.00067ND0.0050 EPA-8260B 1 2,2-Dichloropropane mg/kg 0.00067ND0.0050 EPA-8260B 1 1,1-Dichloropropene mg/kg 0.00067ND0.0050 EPA-8260B 1 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 21 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Pace Sample ID:2501345-04 Client Sample Name: Constituent Result Units Method Limits Quals TTLC Lab Volatile Organic Analysis (EPA Method 8260B) DCN USTD-N-2', 1/24/2025 2:00:00PM, Carlos Enriquez Villegas MDLPQL cis-1,3-Dichloropropene mg/kg 0.00058ND0.0050 EPA-8260B 1 trans-1,3-Dichloropropene mg/kg 0.00066ND0.0050 EPA-8260B 1 Total 1,3-Dichloropropene mg/kg 0.0013ND0.010 EPA-8260B 1 Ethylbenzene mg/kg 0.00069ND0.0050 EPA-8260B 1 Hexachlorobutadiene mg/kg 0.00067ND0.0050 EPA-8260B 1 Isopropylbenzene mg/kg 0.00080ND0.0050 EPA-8260B 1 p-Isopropyltoluene mg/kg 0.00059ND0.0050 EPA-8260B 1 Methylene chloride mg/kg 0.0011ND0.010 EPA-8260B 1 Methyl t-butyl ether mg/kg 0.00056ND0.0050 EPA-8260B 1 Naphthalene mg/kg 0.00099ND0.0050 EPA-8260B 1 n-Propylbenzene mg/kg 0.00071ND0.0050 EPA-8260B 1 Styrene mg/kg 0.00062ND0.0050 EPA-8260B 1 1,1,1,2-Tetrachloroethane mg/kg 0.00095ND0.0050 EPA-8260B 1 1,1,2,2-Tetrachloroethane mg/kg 0.00084ND0.0050 EPA-8260B 1 Tetrachloroethene mg/kg 0.00097ND0.0050 EPA-8260B 1 Toluene mg/kg 0.00069ND0.0050 EPA-8260B 1 1,2,3-Trichlorobenzene mg/kg 0.0015ND0.0050 EPA-8260B 1 1,2,4-Trichlorobenzene mg/kg 0.0014ND0.0050 EPA-8260B 1 1,1,1-Trichloroethane mg/kg 0.00067ND0.0050 EPA-8260B 1 1,1,2-Trichloroethane mg/kg 0.00094ND0.0050 EPA-8260B 1 Trichloroethene mg/kg 0.00074ND0.0050 EPA-8260B 12040 Trichlorofluoromethane mg/kg 0.0015ND0.0050 EPA-8260B 1 1,2,3-Trichloropropane mg/kg 0.0019ND0.0050 EPA-8260B 1 1,1,2-Trichloro-1,2,2-trifluoroethane mg/kg 0.0010ND0.0050 EPA-8260B 1 1,2,4-Trimethylbenzene mg/kg 0.00080ND0.0050 EPA-8260B 1 1,3,5-Trimethylbenzene mg/kg 0.00066ND0.0050 EPA-8260B 1 Vinyl chloride mg/kg 0.00059ND0.0050 EPA-8260B 1 Total Xylenes mg/kg 0.0025ND0.010 EPA-8260B 1 t-Amyl Methyl ether mg/kg 0.00050ND0.0050 EPA-8260B 1 t-Butyl alcohol mg/kg 0.012ND0.050 EPA-8260B 1 Diisopropyl ether mg/kg 0.00057ND0.0050 EPA-8260B 1 Ethyl t-butyl ether mg/kg 0.00050ND0.0050 EPA-8260B 1 1,2-Dichloroethane-d4 (Surrogate)%70 - 121 (LCL - UCL)112 EPA-8260B 1 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 22 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Pace Sample ID:2501345-04 Client Sample Name: Constituent Result Units Method Limits Quals TTLC Lab Volatile Organic Analysis (EPA Method 8260B) DCN USTD-N-2', 1/24/2025 2:00:00PM, Carlos Enriquez Villegas MDLPQL Toluene-d8 (Surrogate)%81 - 117 (LCL - UCL)99.8 EPA-8260B 1 4-Bromofluorobenzene (Surrogate)%74 - 121 (LCL - UCL)101 EPA-8260B 1 QC Batch IDDilutionInstrumentAnalystDate/Time Run Prep DateMethodDCN Prep Method 01/27/25 05:38 01/27/25 18:23 EAB MS-V18 1 B204943EPA-8260B 1 EPA 5030 Soil MS DCN = Data Continuation Number The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 23 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Pace Sample ID:2501345-04 Client Sample Name: Constituent Result Units Method Bias Quals MB Lab Total Petroleum Hydrocarbons DCN USTD-N-2', 1/24/2025 2:00:00PM, Carlos Enriquez Villegas MDLPQL TPH - Diesel Range Organics (C12 - C22) mg/kg 0.70ND1.0 EPA-8015B 1ND TPH - Oil Range Organics (C23 - C32)mg/kg A570.989.5 2.0 EPA-8015B 1ND Tetracosane (Surrogate)%40 - 130 (LCL - UCL)115 EPA-8015B 1 QC Batch IDDilutionInstrumentAnalystDate/Time Run Prep DateMethodDCN Prep Method 01/27/25 17:00 01/30/25 16:15 BUP GC-19 0.993 B205022EPA-8015B 1 EPA 3546 DCN = Data Continuation Number The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 24 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Pace Sample ID:2501345-04 Client Sample Name: Constituent Result Units Method Limits Quals TTLC Lab Total Concentrations (TTLC) DCN USTD-N-2', 1/24/2025 2:00:00PM, Carlos Enriquez Villegas MDLPQL Antimony mg/kg 0.33ND5.0 EPA-6010B 1500 Arsenic mg/kg 0.408.9 1.0 EPA-6010B 1500 Barium mg/kg 0.18520.50 EPA-6010B 110000 Beryllium mg/kg J0.0470.086 0.50 EPA-6010B 175 Cadmium mg/kg J0.0520.10 0.50 EPA-6010B 1100 Chromium mg/kg 0.0503.9 0.50 EPA-6010B 12500 Cobalt mg/kg J0.0982.1 2.5 EPA-6010B 18000 Copper mg/kg 0.0503.8 1.0 EPA-6010B 12500 Lead mg/kg J0.411.4 2.5 EPA-6010B 11000 Mercury mg/kg J0.0160.074 0.16 EPA-7471A 220 Molybdenum mg/kg J0.0500.54 2.5 EPA-6010B 13500 Nickel mg/kg 0.153.0 0.50 EPA-6010B 12000 Selenium mg/kg 0.98ND1.0 EPA-6010B 1100 Silver mg/kg 0.067ND0.50 EPA-6010B 1500 Thallium mg/kg 0.64ND5.0 EPA-6010B 1700 Vanadium mg/kg 0.11210.50 EPA-6010B 12400 Zinc mg/kg 0.087152.5 EPA-6010B 15000 QC Batch IDDilutionInstrumentAnalystDate/Time Run Prep DateMethodDCN Prep Method 01/27/25 09:50 01/27/25 19:52 JRG ICP5 0.971 B205008EPA-6010B 1 EPA 3050B 01/30/25 08:30 01/30/25 12:15 TMT CETAC3 1.025 B205179EPA-7471A 2 EPA 7471A DCN = Data Continuation Number The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 25 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Pace Sample ID:2501345-05 Client Sample Name: Constituent Result Units Method Limits Quals TTLC Lab Volatile Organic Analysis (EPA Method 8260B) DCN USTD-N-3.5', 1/24/2025 2:10:00PM, Carlos Enriquez Villegas MDLPQL Benzene mg/kg 0.00067ND0.0050 EPA-8260B 1 Benzene mg/kg 0.00067ND0.0050 EPA-8260B 1 Bromobenzene mg/kg 0.00087ND0.0050 EPA-8260B 1 Bromobenzene mg/kg 0.00087ND0.0050 EPA-8260B 1 Bromochloromethane mg/kg 0.00081ND0.0050 EPA-8260B 1 Bromochloromethane mg/kg 0.00081ND0.0050 EPA-8260B 1 Bromodichloromethane mg/kg 0.00078ND0.0050 EPA-8260B 1 Bromodichloromethane mg/kg 0.00078ND0.0050 EPA-8260B 1 Bromoform mg/kg 0.00070ND0.0050 EPA-8260B 1 Bromoform mg/kg 0.00070ND0.0050 EPA-8260B 1 Bromomethane mg/kg 0.0017ND0.0050 EPA-8260B 1 Bromomethane mg/kg 0.0017ND0.0050 EPA-8260B 1 n-Butylbenzene mg/kg 0.00076ND0.0050 EPA-8260B 1 n-Butylbenzene mg/kg 0.00076ND0.0050 EPA-8260B 1 sec-Butylbenzene mg/kg 0.00071ND0.0050 EPA-8260B 1 sec-Butylbenzene mg/kg 0.00071ND0.0050 EPA-8260B 1 tert-Butylbenzene mg/kg 0.00085ND0.0050 EPA-8260B 1 tert-Butylbenzene mg/kg 0.00085ND0.0050 EPA-8260B 1 Carbon tetrachloride mg/kg 0.00078ND0.0050 EPA-8260B 1 Carbon tetrachloride mg/kg 0.00078ND0.0050 EPA-8260B 1 Chlorobenzene mg/kg 0.00077ND0.0050 EPA-8260B 1 Chlorobenzene mg/kg 0.00077ND0.0050 EPA-8260B 1 Chloroethane mg/kg 0.0011ND0.0050 EPA-8260B 1 Chloroethane mg/kg 0.0011ND0.0050 EPA-8260B 1 Chloroform mg/kg 0.00090ND0.0050 EPA-8260B 1 Chloroform mg/kg 0.00090ND0.0050 EPA-8260B 1 Chloromethane mg/kg 0.0011ND0.0050 EPA-8260B 1 Chloromethane mg/kg 0.0011ND0.0050 EPA-8260B 1 2-Chlorotoluene mg/kg 0.00087ND0.0050 EPA-8260B 1 2-Chlorotoluene mg/kg 0.00087ND0.0050 EPA-8260B 1 4-Chlorotoluene mg/kg 0.00070ND0.0050 EPA-8260B 1 4-Chlorotoluene mg/kg 0.00070ND0.0050 EPA-8260B 1 Dibromochloromethane mg/kg 0.00080ND0.0050 EPA-8260B 1 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 26 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Pace Sample ID:2501345-05 Client Sample Name: Constituent Result Units Method Limits Quals TTLC Lab Volatile Organic Analysis (EPA Method 8260B) DCN USTD-N-3.5', 1/24/2025 2:10:00PM, Carlos Enriquez Villegas MDLPQL Dibromochloromethane mg/kg 0.00080ND0.0050 EPA-8260B 1 1,2-Dibromo-3-chloropropane mg/kg 0.00096ND0.0050 EPA-8260B 1 1,2-Dibromo-3-chloropropane mg/kg 0.00096ND0.0050 EPA-8260B 1 1,2-Dibromoethane mg/kg 0.00082ND0.0050 EPA-8260B 1 1,2-Dibromoethane mg/kg 0.00082ND0.0050 EPA-8260B 1 Dibromomethane mg/kg 0.0014ND0.0050 EPA-8260B 1 Dibromomethane mg/kg 0.0014ND0.0050 EPA-8260B 1 1,2-Dichlorobenzene mg/kg 0.00079ND0.0050 EPA-8260B 1 1,2-Dichlorobenzene mg/kg 0.00079ND0.0050 EPA-8260B 1 1,4-Dichlorobenzene mg/kg 0.00073ND0.0050 EPA-8260B 1 1,4-Dichlorobenzene mg/kg 0.00073ND0.0050 EPA-8260B 1 Dichlorodifluoromethane mg/kg 0.00079ND0.0050 EPA-8260B 1 Dichlorodifluoromethane mg/kg 0.00079ND0.0050 EPA-8260B 1 1,1-Dichloroethane mg/kg 0.00064ND0.0050 EPA-8260B 1 1,1-Dichloroethane mg/kg 0.00064ND0.0050 EPA-8260B 1 1,2-Dichloroethane mg/kg 0.00073ND0.0050 EPA-8260B 1 1,2-Dichloroethane mg/kg 0.00073ND0.0050 EPA-8260B 1 1,1-Dichloroethene mg/kg 0.0011ND0.0050 EPA-8260B 1 1,1-Dichloroethene mg/kg 0.0011ND0.0050 EPA-8260B 1 cis-1,2-Dichloroethene mg/kg 0.00054ND0.0050 EPA-8260B 1 cis-1,2-Dichloroethene mg/kg 0.00054ND0.0050 EPA-8260B 1 trans-1,2-Dichloroethene mg/kg 0.0037ND0.0050 EPA-8260B 1 trans-1,2-Dichloroethene mg/kg 0.0037ND0.0050 EPA-8260B 1 Total 1,2-Dichloroethene mg/kg 0.0043ND0.010 EPA-8260B 1 1,2-Dichloropropane mg/kg 0.00080ND0.0050 EPA-8260B 1 1,2-Dichloropropane mg/kg 0.00080ND0.0050 EPA-8260B 1 1,3-Dichloropropane mg/kg 0.00067ND0.0050 EPA-8260B 1 1,3-Dichloropropane mg/kg 0.00067ND0.0050 EPA-8260B 1 2,2-Dichloropropane mg/kg 0.00067ND0.0050 EPA-8260B 1 2,2-Dichloropropane mg/kg 0.00067ND0.0050 EPA-8260B 1 1,1-Dichloropropene mg/kg 0.00067ND0.0050 EPA-8260B 1 1,1-Dichloropropene mg/kg 0.00067ND0.0050 EPA-8260B 1 cis-1,3-Dichloropropene mg/kg 0.00058ND0.0050 EPA-8260B 1 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 27 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Pace Sample ID:2501345-05 Client Sample Name: Constituent Result Units Method Limits Quals TTLC Lab Volatile Organic Analysis (EPA Method 8260B) DCN USTD-N-3.5', 1/24/2025 2:10:00PM, Carlos Enriquez Villegas MDLPQL cis-1,3-Dichloropropene mg/kg 0.00058ND0.0050 EPA-8260B 1 trans-1,3-Dichloropropene mg/kg 0.00066ND0.0050 EPA-8260B 1 trans-1,3-Dichloropropene mg/kg 0.00066ND0.0050 EPA-8260B 1 Total 1,3-Dichloropropene mg/kg 0.0013ND0.010 EPA-8260B 1 Ethylbenzene mg/kg 0.00069ND0.0050 EPA-8260B 1 Ethylbenzene mg/kg 0.00069ND0.0050 EPA-8260B 1 Hexachlorobutadiene mg/kg 0.00067ND0.0050 EPA-8260B 1 Hexachlorobutadiene mg/kg 0.00067ND0.0050 EPA-8260B 1 Isopropylbenzene mg/kg 0.00080ND0.0050 EPA-8260B 1 Isopropylbenzene mg/kg 0.00080ND0.0050 EPA-8260B 1 p-Isopropyltoluene mg/kg 0.00059ND0.0050 EPA-8260B 1 p-Isopropyltoluene mg/kg 0.00059ND0.0050 EPA-8260B 1 Methylene chloride mg/kg 0.0011ND0.010 EPA-8260B 1 Methylene chloride mg/kg 0.0011ND0.010 EPA-8260B 1 Methyl t-butyl ether mg/kg 0.00056ND0.0050 EPA-8260B 1 Methyl t-butyl ether mg/kg 0.00056ND0.0050 EPA-8260B 1 Naphthalene mg/kg 0.00099ND0.0050 EPA-8260B 1 Naphthalene mg/kg 0.00099ND0.0050 EPA-8260B 1 n-Propylbenzene mg/kg 0.00071ND0.0050 EPA-8260B 1 n-Propylbenzene mg/kg 0.00071ND0.0050 EPA-8260B 1 Styrene mg/kg 0.00062ND0.0050 EPA-8260B 1 Styrene mg/kg 0.00062ND0.0050 EPA-8260B 1 1,1,1,2-Tetrachloroethane mg/kg 0.00095ND0.0050 EPA-8260B 1 1,1,1,2-Tetrachloroethane mg/kg 0.00095ND0.0050 EPA-8260B 1 1,1,2,2-Tetrachloroethane mg/kg 0.00084ND0.0050 EPA-8260B 1 1,1,2,2-Tetrachloroethane mg/kg 0.00084ND0.0050 EPA-8260B 1 Tetrachloroethene mg/kg 0.00097ND0.0050 EPA-8260B 1 Tetrachloroethene mg/kg 0.00097ND0.0050 EPA-8260B 1 Toluene mg/kg 0.00069ND0.0050 EPA-8260B 1 Toluene mg/kg 0.00069ND0.0050 EPA-8260B 1 1,2,3-Trichlorobenzene mg/kg 0.0015ND0.0050 EPA-8260B 1 1,2,3-Trichlorobenzene mg/kg 0.0015ND0.0050 EPA-8260B 1 1,2,4-Trichlorobenzene mg/kg 0.0014ND0.0050 EPA-8260B 1 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 28 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Pace Sample ID:2501345-05 Client Sample Name: Constituent Result Units Method Limits Quals TTLC Lab Volatile Organic Analysis (EPA Method 8260B) DCN USTD-N-3.5', 1/24/2025 2:10:00PM, Carlos Enriquez Villegas MDLPQL 1,2,4-Trichlorobenzene mg/kg 0.0014ND0.0050 EPA-8260B 1 1,1,1-Trichloroethane mg/kg 0.00067ND0.0050 EPA-8260B 1 1,1,1-Trichloroethane mg/kg 0.00067ND0.0050 EPA-8260B 1 1,1,2-Trichloroethane mg/kg 0.00094ND0.0050 EPA-8260B 1 1,1,2-Trichloroethane mg/kg 0.00094ND0.0050 EPA-8260B 1 Trichloroethene mg/kg 0.00074ND0.0050 EPA-8260B 12040 Trichloroethene mg/kg 0.00074ND0.0050 EPA-8260B 12040 Trichlorofluoromethane mg/kg 0.0015ND0.0050 EPA-8260B 1 Trichlorofluoromethane mg/kg 0.0015ND0.0050 EPA-8260B 1 1,2,3-Trichloropropane mg/kg 0.0019ND0.0050 EPA-8260B 1 1,2,3-Trichloropropane mg/kg 0.0019ND0.0050 EPA-8260B 1 1,1,2-Trichloro-1,2,2-trifluoroethane mg/kg 0.0010ND0.0050 EPA-8260B 1 1,1,2-Trichloro-1,2,2-trifluoroethane mg/kg 0.0010ND0.0050 EPA-8260B 1 1,2,4-Trimethylbenzene mg/kg 0.00080ND0.0050 EPA-8260B 1 1,2,4-Trimethylbenzene mg/kg 0.00080ND0.0050 EPA-8260B 1 1,3,5-Trimethylbenzene mg/kg 0.00066ND0.0050 EPA-8260B 1 1,3,5-Trimethylbenzene mg/kg 0.00066ND0.0050 EPA-8260B 1 Vinyl chloride mg/kg 0.00059ND0.0050 EPA-8260B 1 Vinyl chloride mg/kg 0.00059ND0.0050 EPA-8260B 1 Total Xylenes mg/kg 0.0025ND0.010 EPA-8260B 1 Total Xylenes mg/kg 0.0025ND0.010 EPA-8260B 1 t-Amyl Methyl ether mg/kg 0.00050ND0.0050 EPA-8260B 1 t-Butyl alcohol mg/kg 0.012ND0.050 EPA-8260B 1 Diisopropyl ether mg/kg 0.00057ND0.0050 EPA-8260B 1 Ethyl t-butyl ether mg/kg 0.00050ND0.0050 EPA-8260B 1 p- & m-Xylenes mg/kg 0.0015ND0.0050 EPA-8260B 1 o-Xylene mg/kg 0.00093ND0.0050 EPA-8260B 1 1,2-Dichloroethane-d4 (Surrogate)%70 - 121 (LCL - UCL)115 EPA-8260B 1 1,2-Dichloroethane-d4 (Surrogate)%70 - 121 (LCL - UCL)115 EPA-8260B 1 Toluene-d8 (Surrogate)%81 - 117 (LCL - UCL)102 EPA-8260B 1 Toluene-d8 (Surrogate)%81 - 117 (LCL - UCL)102 EPA-8260B 1 4-Bromofluorobenzene (Surrogate)%74 - 121 (LCL - UCL)103 EPA-8260B 1 4-Bromofluorobenzene (Surrogate)%74 - 121 (LCL - UCL)103 EPA-8260B 1 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 29 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 BCL Sample ID:2501345-05 Client Sample Name: Method Prep Date Date/Time Run Analyst Instrument Dilution Batch ID QC Volatile Organic Analysis (EPA Method 8260B) DCN USTD-N-3.5', 1/24/2025 2:10:00PM, Carlos Enriquez Villegas 01/27/25 05:38 01/28/25 14:33 EAB MS-V18 1 B204943EPA-8260B 1 EPA 5030 Soil MS DCN = Data Continuation Number The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 30 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Pace Sample ID:2501345-05 Client Sample Name: Constituent Result Units Method Bias Quals MB Lab Total Petroleum Hydrocarbons DCN USTD-N-3.5', 1/24/2025 2:10:00PM, Carlos Enriquez Villegas MDLPQL TPH - Diesel Range Organics (C12 - C22) mg/kg 0.70ND1.0 EPA-8015B 1ND TPH - Oil Range Organics (C23 - C32)mg/kg A570.986.8 2.0 EPA-8015B 1ND Tetracosane (Surrogate)%40 - 130 (LCL - UCL)82.1 EPA-8015B 1 QC Batch IDDilutionInstrumentAnalystDate/Time Run Prep DateMethodDCN Prep Method 01/27/25 17:00 01/30/25 12:26 BUP GC-19 1.014 B205022EPA-8015B 1 EPA 3546 DCN = Data Continuation Number The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 31 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Pace Sample ID:2501345-05 Client Sample Name: Constituent Result Units Method Limits Quals TTLC Lab Total Concentrations (TTLC) DCN USTD-N-3.5', 1/24/2025 2:10:00PM, Carlos Enriquez Villegas MDLPQL Antimony mg/kg 0.33ND5.0 EPA-6010B 1500 Arsenic mg/kg 0.407.3 1.0 EPA-6010B 1500 Barium mg/kg 0.18550.50 EPA-6010B 110000 Beryllium mg/kg J0.0470.10 0.50 EPA-6010B 175 Cadmium mg/kg J0.0520.073 0.50 EPA-6010B 1100 Chromium mg/kg 0.0504.4 0.50 EPA-6010B 12500 Cobalt mg/kg J0.0982.1 2.5 EPA-6010B 18000 Copper mg/kg 0.0503.2 1.0 EPA-6010B 12500 Lead mg/kg J0.410.96 2.5 EPA-6010B 11000 Mercury mg/kg J0.0160.12 0.16 EPA-7471A 220 Molybdenum mg/kg J0.0500.70 2.5 EPA-6010B 13500 Nickel mg/kg 0.152.9 0.50 EPA-6010B 12000 Selenium mg/kg 0.98ND1.0 EPA-6010B 1100 Silver mg/kg 0.067ND0.50 EPA-6010B 1500 Thallium mg/kg 0.64ND5.0 EPA-6010B 1700 Vanadium mg/kg 0.11160.50 EPA-6010B 12400 Zinc mg/kg 0.087132.5 EPA-6010B 15000 QC Batch IDDilutionInstrumentAnalystDate/Time Run Prep DateMethodDCN Prep Method 01/27/25 09:50 01/27/25 19:54 JRG ICP5 0.971 B205008EPA-6010B 1 EPA 3050B 01/30/25 08:30 01/30/25 12:22 TMT CETAC3 0.977 B205179EPA-7471A 2 EPA 7471A DCN = Data Continuation Number The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 32 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Pace Sample ID:2501345-06 Client Sample Name: Constituent Result Units Method Limits Quals TTLC Lab Volatile Organic Analysis (EPA Method 8260B) DCN USTD-S-2', 1/24/2025 2:20:00PM, Carlos Enriquez Villegas MDLPQL Benzene mg/kg 0.00067ND0.0050 EPA-8260B 1 Benzene mg/kg 0.00067ND0.0050 EPA-8260B 1 Bromobenzene mg/kg 0.00087ND0.0050 EPA-8260B 1 Bromobenzene mg/kg 0.00087ND0.0050 EPA-8260B 1 Bromochloromethane mg/kg 0.00081ND0.0050 EPA-8260B 1 Bromochloromethane mg/kg 0.00081ND0.0050 EPA-8260B 1 Bromodichloromethane mg/kg 0.00078ND0.0050 EPA-8260B 1 Bromodichloromethane mg/kg 0.00078ND0.0050 EPA-8260B 1 Bromoform mg/kg 0.00070ND0.0050 EPA-8260B 1 Bromoform mg/kg 0.00070ND0.0050 EPA-8260B 1 Bromomethane mg/kg 0.0017ND0.0050 EPA-8260B 1 Bromomethane mg/kg 0.0017ND0.0050 EPA-8260B 1 n-Butylbenzene mg/kg 0.00076ND0.0050 EPA-8260B 1 n-Butylbenzene mg/kg 0.00076ND0.0050 EPA-8260B 1 sec-Butylbenzene mg/kg 0.00071ND0.0050 EPA-8260B 1 sec-Butylbenzene mg/kg 0.00071ND0.0050 EPA-8260B 1 tert-Butylbenzene mg/kg 0.00085ND0.0050 EPA-8260B 1 tert-Butylbenzene mg/kg 0.00085ND0.0050 EPA-8260B 1 Carbon tetrachloride mg/kg 0.00078ND0.0050 EPA-8260B 1 Carbon tetrachloride mg/kg 0.00078ND0.0050 EPA-8260B 1 Chlorobenzene mg/kg 0.00077ND0.0050 EPA-8260B 1 Chlorobenzene mg/kg 0.00077ND0.0050 EPA-8260B 1 Chloroethane mg/kg 0.0011ND0.0050 EPA-8260B 1 Chloroethane mg/kg 0.0011ND0.0050 EPA-8260B 1 Chloroform mg/kg 0.00090ND0.0050 EPA-8260B 1 Chloroform mg/kg 0.00090ND0.0050 EPA-8260B 1 Chloromethane mg/kg 0.0011ND0.0050 EPA-8260B 1 Chloromethane mg/kg 0.0011ND0.0050 EPA-8260B 1 2-Chlorotoluene mg/kg 0.00087ND0.0050 EPA-8260B 1 2-Chlorotoluene mg/kg 0.00087ND0.0050 EPA-8260B 1 4-Chlorotoluene mg/kg 0.00070ND0.0050 EPA-8260B 1 4-Chlorotoluene mg/kg 0.00070ND0.0050 EPA-8260B 1 Dibromochloromethane mg/kg 0.00080ND0.0050 EPA-8260B 1 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 33 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Pace Sample ID:2501345-06 Client Sample Name: Constituent Result Units Method Limits Quals TTLC Lab Volatile Organic Analysis (EPA Method 8260B) DCN USTD-S-2', 1/24/2025 2:20:00PM, Carlos Enriquez Villegas MDLPQL Dibromochloromethane mg/kg 0.00080ND0.0050 EPA-8260B 1 1,2-Dibromo-3-chloropropane mg/kg 0.00096ND0.0050 EPA-8260B 1 1,2-Dibromo-3-chloropropane mg/kg 0.00096ND0.0050 EPA-8260B 1 1,2-Dibromoethane mg/kg 0.00082ND0.0050 EPA-8260B 1 1,2-Dibromoethane mg/kg 0.00082ND0.0050 EPA-8260B 1 Dibromomethane mg/kg 0.0014ND0.0050 EPA-8260B 1 Dibromomethane mg/kg 0.0014ND0.0050 EPA-8260B 1 1,2-Dichlorobenzene mg/kg 0.00079ND0.0050 EPA-8260B 1 1,2-Dichlorobenzene mg/kg 0.00079ND0.0050 EPA-8260B 1 1,4-Dichlorobenzene mg/kg 0.00073ND0.0050 EPA-8260B 1 1,4-Dichlorobenzene mg/kg 0.00073ND0.0050 EPA-8260B 1 Dichlorodifluoromethane mg/kg 0.00079ND0.0050 EPA-8260B 1 Dichlorodifluoromethane mg/kg 0.00079ND0.0050 EPA-8260B 1 1,1-Dichloroethane mg/kg 0.00064ND0.0050 EPA-8260B 1 1,1-Dichloroethane mg/kg 0.00064ND0.0050 EPA-8260B 1 1,2-Dichloroethane mg/kg 0.00073ND0.0050 EPA-8260B 1 1,2-Dichloroethane mg/kg 0.00073ND0.0050 EPA-8260B 1 1,1-Dichloroethene mg/kg 0.0011ND0.0050 EPA-8260B 1 1,1-Dichloroethene mg/kg 0.0011ND0.0050 EPA-8260B 1 cis-1,2-Dichloroethene mg/kg 0.00054ND0.0050 EPA-8260B 1 cis-1,2-Dichloroethene mg/kg 0.00054ND0.0050 EPA-8260B 1 trans-1,2-Dichloroethene mg/kg 0.0037ND0.0050 EPA-8260B 1 trans-1,2-Dichloroethene mg/kg 0.0037ND0.0050 EPA-8260B 1 Total 1,2-Dichloroethene mg/kg 0.0043ND0.010 EPA-8260B 1 1,2-Dichloropropane mg/kg 0.00080ND0.0050 EPA-8260B 1 1,2-Dichloropropane mg/kg 0.00080ND0.0050 EPA-8260B 1 1,3-Dichloropropane mg/kg 0.00067ND0.0050 EPA-8260B 1 1,3-Dichloropropane mg/kg 0.00067ND0.0050 EPA-8260B 1 2,2-Dichloropropane mg/kg 0.00067ND0.0050 EPA-8260B 1 2,2-Dichloropropane mg/kg 0.00067ND0.0050 EPA-8260B 1 1,1-Dichloropropene mg/kg 0.00067ND0.0050 EPA-8260B 1 1,1-Dichloropropene mg/kg 0.00067ND0.0050 EPA-8260B 1 cis-1,3-Dichloropropene mg/kg 0.00058ND0.0050 EPA-8260B 1 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 34 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Pace Sample ID:2501345-06 Client Sample Name: Constituent Result Units Method Limits Quals TTLC Lab Volatile Organic Analysis (EPA Method 8260B) DCN USTD-S-2', 1/24/2025 2:20:00PM, Carlos Enriquez Villegas MDLPQL cis-1,3-Dichloropropene mg/kg 0.00058ND0.0050 EPA-8260B 1 trans-1,3-Dichloropropene mg/kg 0.00066ND0.0050 EPA-8260B 1 trans-1,3-Dichloropropene mg/kg 0.00066ND0.0050 EPA-8260B 1 Total 1,3-Dichloropropene mg/kg 0.0013ND0.010 EPA-8260B 1 Ethylbenzene mg/kg 0.00069ND0.0050 EPA-8260B 1 Ethylbenzene mg/kg 0.00069ND0.0050 EPA-8260B 1 Hexachlorobutadiene mg/kg 0.00067ND0.0050 EPA-8260B 1 Hexachlorobutadiene mg/kg 0.00067ND0.0050 EPA-8260B 1 Isopropylbenzene mg/kg 0.00080ND0.0050 EPA-8260B 1 Isopropylbenzene mg/kg 0.00080ND0.0050 EPA-8260B 1 p-Isopropyltoluene mg/kg 0.00059ND0.0050 EPA-8260B 1 p-Isopropyltoluene mg/kg 0.00059ND0.0050 EPA-8260B 1 Methylene chloride mg/kg 0.0011ND0.010 EPA-8260B 1 Methylene chloride mg/kg 0.0011ND0.010 EPA-8260B 1 Methyl t-butyl ether mg/kg 0.00056ND0.0050 EPA-8260B 1 Methyl t-butyl ether mg/kg 0.00056ND0.0050 EPA-8260B 1 Naphthalene mg/kg 0.00099ND0.0050 EPA-8260B 1 Naphthalene mg/kg 0.00099ND0.0050 EPA-8260B 1 n-Propylbenzene mg/kg 0.00071ND0.0050 EPA-8260B 1 n-Propylbenzene mg/kg 0.00071ND0.0050 EPA-8260B 1 Styrene mg/kg 0.00062ND0.0050 EPA-8260B 1 Styrene mg/kg 0.00062ND0.0050 EPA-8260B 1 1,1,1,2-Tetrachloroethane mg/kg 0.00095ND0.0050 EPA-8260B 1 1,1,1,2-Tetrachloroethane mg/kg 0.00095ND0.0050 EPA-8260B 1 1,1,2,2-Tetrachloroethane mg/kg 0.00084ND0.0050 EPA-8260B 1 1,1,2,2-Tetrachloroethane mg/kg 0.00084ND0.0050 EPA-8260B 1 Tetrachloroethene mg/kg 0.00097ND0.0050 EPA-8260B 1 Tetrachloroethene mg/kg 0.00097ND0.0050 EPA-8260B 1 Toluene mg/kg 0.00069ND0.0050 EPA-8260B 1 Toluene mg/kg 0.00069ND0.0050 EPA-8260B 1 1,2,3-Trichlorobenzene mg/kg 0.0015ND0.0050 EPA-8260B 1 1,2,3-Trichlorobenzene mg/kg 0.0015ND0.0050 EPA-8260B 1 1,2,4-Trichlorobenzene mg/kg 0.0014ND0.0050 EPA-8260B 1 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 35 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Pace Sample ID:2501345-06 Client Sample Name: Constituent Result Units Method Limits Quals TTLC Lab Volatile Organic Analysis (EPA Method 8260B) DCN USTD-S-2', 1/24/2025 2:20:00PM, Carlos Enriquez Villegas MDLPQL 1,2,4-Trichlorobenzene mg/kg 0.0014ND0.0050 EPA-8260B 1 1,1,1-Trichloroethane mg/kg 0.00067ND0.0050 EPA-8260B 1 1,1,1-Trichloroethane mg/kg 0.00067ND0.0050 EPA-8260B 1 1,1,2-Trichloroethane mg/kg 0.00094ND0.0050 EPA-8260B 1 1,1,2-Trichloroethane mg/kg 0.00094ND0.0050 EPA-8260B 1 Trichloroethene mg/kg 0.00074ND0.0050 EPA-8260B 12040 Trichloroethene mg/kg 0.00074ND0.0050 EPA-8260B 12040 Trichlorofluoromethane mg/kg 0.0015ND0.0050 EPA-8260B 1 Trichlorofluoromethane mg/kg 0.0015ND0.0050 EPA-8260B 1 1,2,3-Trichloropropane mg/kg 0.0019ND0.0050 EPA-8260B 1 1,2,3-Trichloropropane mg/kg 0.0019ND0.0050 EPA-8260B 1 1,1,2-Trichloro-1,2,2-trifluoroethane mg/kg 0.0010ND0.0050 EPA-8260B 1 1,1,2-Trichloro-1,2,2-trifluoroethane mg/kg 0.0010ND0.0050 EPA-8260B 1 1,2,4-Trimethylbenzene mg/kg 0.00080ND0.0050 EPA-8260B 1 1,2,4-Trimethylbenzene mg/kg 0.00080ND0.0050 EPA-8260B 1 1,3,5-Trimethylbenzene mg/kg 0.00066ND0.0050 EPA-8260B 1 1,3,5-Trimethylbenzene mg/kg 0.00066ND0.0050 EPA-8260B 1 Vinyl chloride mg/kg 0.00059ND0.0050 EPA-8260B 1 Vinyl chloride mg/kg 0.00059ND0.0050 EPA-8260B 1 Total Xylenes mg/kg 0.0025ND0.010 EPA-8260B 1 Total Xylenes mg/kg 0.0025ND0.010 EPA-8260B 1 t-Amyl Methyl ether mg/kg 0.00050ND0.0050 EPA-8260B 1 t-Butyl alcohol mg/kg 0.012ND0.050 EPA-8260B 1 Diisopropyl ether mg/kg 0.00057ND0.0050 EPA-8260B 1 Ethyl t-butyl ether mg/kg 0.00050ND0.0050 EPA-8260B 1 p- & m-Xylenes mg/kg 0.0015ND0.0050 EPA-8260B 1 o-Xylene mg/kg 0.00093ND0.0050 EPA-8260B 1 1,2-Dichloroethane-d4 (Surrogate)%70 - 121 (LCL - UCL)111 EPA-8260B 1 1,2-Dichloroethane-d4 (Surrogate)%70 - 121 (LCL - UCL)111 EPA-8260B 1 Toluene-d8 (Surrogate)%81 - 117 (LCL - UCL)102 EPA-8260B 1 Toluene-d8 (Surrogate)%81 - 117 (LCL - UCL)102 EPA-8260B 1 4-Bromofluorobenzene (Surrogate)%74 - 121 (LCL - UCL)103 EPA-8260B 1 4-Bromofluorobenzene (Surrogate)%74 - 121 (LCL - UCL)103 EPA-8260B 1 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 36 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 BCL Sample ID:2501345-06 Client Sample Name: Method Prep Date Date/Time Run Analyst Instrument Dilution Batch ID QC Volatile Organic Analysis (EPA Method 8260B) DCN USTD-S-2', 1/24/2025 2:20:00PM, Carlos Enriquez Villegas 01/27/25 05:38 01/28/25 14:57 EAB MS-V18 1 B204943EPA-8260B 1 EPA 5030 Soil MS DCN = Data Continuation Number The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 37 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Pace Sample ID:2501345-06 Client Sample Name: Constituent Result Units Method Bias Quals MB Lab Total Petroleum Hydrocarbons DCN USTD-S-2', 1/24/2025 2:20:00PM, Carlos Enriquez Villegas MDLPQL TPH - Diesel Range Organics (C12 - C22) mg/kg 0.70ND1.0 EPA-8015B 1ND TPH - Oil Range Organics (C23 - C32)mg/kg A570.985.9 2.0 EPA-8015B 1ND Tetracosane (Surrogate)%40 - 130 (LCL - UCL)88.2 EPA-8015B 1 QC Batch IDDilutionInstrumentAnalystDate/Time Run Prep DateMethodDCN Prep Method 01/27/25 17:00 01/30/25 12:43 BUP GC-19 1.007 B205022EPA-8015B 1 EPA 3546 DCN = Data Continuation Number The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 38 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Pace Sample ID:2501345-06 Client Sample Name: Constituent Result Units Method Limits Quals TTLC Lab Total Concentrations (TTLC) DCN USTD-S-2', 1/24/2025 2:20:00PM, Carlos Enriquez Villegas MDLPQL Antimony mg/kg 0.33ND5.0 EPA-6010B 1500 Arsenic mg/kg 0.406.2 1.0 EPA-6010B 1500 Barium mg/kg 0.18900.50 EPA-6010B 110000 Beryllium mg/kg J0.0470.097 0.50 EPA-6010B 175 Cadmium mg/kg J0.0520.055 0.50 EPA-6010B 1100 Chromium mg/kg 0.0502.4 0.50 EPA-6010B 12500 Cobalt mg/kg J0.0981.5 2.5 EPA-6010B 18000 Copper mg/kg 0.0502.5 1.0 EPA-6010B 12500 Lead mg/kg J0.411.2 2.5 EPA-6010B 11000 Mercury mg/kg J0.0160.13 0.16 EPA-7471A 220 Molybdenum mg/kg J0.0500.26 2.5 EPA-6010B 13500 Nickel mg/kg 0.151.9 0.50 EPA-6010B 12000 Selenium mg/kg 0.98ND1.0 EPA-6010B 1100 Silver mg/kg 0.067ND0.50 EPA-6010B 1500 Thallium mg/kg 0.64ND5.0 EPA-6010B 1700 Vanadium mg/kg 0.11140.50 EPA-6010B 12400 Zinc mg/kg 0.087102.5 EPA-6010B 15000 QC Batch IDDilutionInstrumentAnalystDate/Time Run Prep DateMethodDCN Prep Method 01/27/25 09:50 01/27/25 19:56 JRG ICP5 1 B205008EPA-6010B 1 EPA 3050B 01/30/25 08:30 01/30/25 12:23 TMT CETAC3 0.962 B205179EPA-7471A 2 EPA 7471A DCN = Data Continuation Number The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 39 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Quality Control Report - Method Blank Analysis Constituent QC Sample ID MB Result Units Lab Quals Volatile Organic Analysis (EPA Method 8260B) Run #MDLPQL QC Batch ID: B204713 Benzene B204713-BLK1 0.0050NDmg/kg 0.00067 1 Bromobenzene B204713-BLK1 0.0050NDmg/kg 0.00087 1 Bromochloromethane B204713-BLK1 0.0050NDmg/kg 0.00081 1 Bromodichloromethane B204713-BLK1 0.0050NDmg/kg 0.00078 1 Bromoform B204713-BLK1 0.0050NDmg/kg 0.00070 1 Bromomethane B204713-BLK1 0.0050NDmg/kg 0.0017 1 n-Butylbenzene B204713-BLK1 0.0050NDmg/kg 0.00076 1 sec-Butylbenzene B204713-BLK1 0.0050NDmg/kg 0.00071 1 tert-Butylbenzene B204713-BLK1 0.0050NDmg/kg 0.00085 1 Carbon tetrachloride B204713-BLK1 0.0050NDmg/kg 0.00078 1 Chlorobenzene B204713-BLK1 0.0050NDmg/kg 0.00077 1 Chloroethane B204713-BLK1 0.0050NDmg/kg 0.0011 1 Chloroform B204713-BLK1 0.0050NDmg/kg 0.00090 1 Chloromethane B204713-BLK1 0.0050NDmg/kg 0.0011 1 2-Chlorotoluene B204713-BLK1 0.0050NDmg/kg 0.00087 1 4-Chlorotoluene B204713-BLK1 0.0050NDmg/kg 0.00070 1 Dibromochloromethane B204713-BLK1 0.0050NDmg/kg 0.00080 1 1,2-Dibromo-3-chloropropane B204713-BLK1 0.0050NDmg/kg 0.00096 1 1,2-Dibromoethane B204713-BLK1 0.0050NDmg/kg 0.00082 1 Dibromomethane B204713-BLK1 0.0050NDmg/kg 0.0014 1 1,2-Dichlorobenzene B204713-BLK1 0.0050NDmg/kg 0.00079 1 1,4-Dichlorobenzene B204713-BLK1 0.0050NDmg/kg 0.00073 1 Dichlorodifluoromethane B204713-BLK1 0.0050NDmg/kg 0.00079 1 1,1-Dichloroethane B204713-BLK1 0.0050NDmg/kg 0.00064 1 1,2-Dichloroethane B204713-BLK1 0.0050NDmg/kg 0.00073 1 1,1-Dichloroethene B204713-BLK1 0.0050NDmg/kg 0.0011 1 cis-1,2-Dichloroethene B204713-BLK1 0.0050NDmg/kg 0.00054 1 trans-1,2-Dichloroethene B204713-BLK1 0.0050NDmg/kg 0.0037 1 Total 1,2-Dichloroethene B204713-BLK1 0.010NDmg/kg 0.0043 1 1,2-Dichloropropane B204713-BLK1 0.0050NDmg/kg 0.00080 1 1,3-Dichloropropane B204713-BLK1 0.0050NDmg/kg 0.00067 1 2,2-Dichloropropane B204713-BLK1 0.0050NDmg/kg 0.00067 1 1,1-Dichloropropene B204713-BLK1 0.0050NDmg/kg 0.00067 1 cis-1,3-Dichloropropene B204713-BLK1 0.0050NDmg/kg 0.00058 1 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 40 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Quality Control Report - Method Blank Analysis Constituent QC Sample ID MB Result Units Lab Quals Volatile Organic Analysis (EPA Method 8260B) Run #MDLPQL QC Batch ID: B204713 trans-1,3-Dichloropropene B204713-BLK1 0.0050NDmg/kg 0.00066 1 Total 1,3-Dichloropropene B204713-BLK1 0.010NDmg/kg 0.0013 1 Ethylbenzene B204713-BLK1 0.0050NDmg/kg 0.00069 1 Hexachlorobutadiene B204713-BLK1 0.0050NDmg/kg 0.00067 1 Isopropylbenzene B204713-BLK1 0.0050NDmg/kg 0.00080 1 p-Isopropyltoluene B204713-BLK1 0.0050NDmg/kg 0.00059 1 Methylene chloride B204713-BLK1 0.010NDmg/kg 0.0011 1 Methyl t-butyl ether B204713-BLK1 0.0050NDmg/kg 0.00056 1 Naphthalene B204713-BLK1 0.0050NDmg/kg 0.00099 1 n-Propylbenzene B204713-BLK1 0.0050NDmg/kg 0.00071 1 Styrene B204713-BLK1 0.0050NDmg/kg 0.00062 1 1,1,1,2-Tetrachloroethane B204713-BLK1 0.0050NDmg/kg 0.00095 1 1,1,2,2-Tetrachloroethane B204713-BLK1 0.0050NDmg/kg 0.00084 1 Tetrachloroethene B204713-BLK1 0.0050NDmg/kg 0.00097 1 Toluene B204713-BLK1 0.0050NDmg/kg 0.00069 1 1,2,3-Trichlorobenzene B204713-BLK1 0.0050NDmg/kg 0.0015 1 1,2,4-Trichlorobenzene B204713-BLK1 0.0050NDmg/kg 0.0014 1 1,1,1-Trichloroethane B204713-BLK1 0.0050NDmg/kg 0.00067 1 1,1,2-Trichloroethane B204713-BLK1 0.0050NDmg/kg 0.00094 1 Trichloroethene B204713-BLK1 0.0050NDmg/kg 0.00074 1 Trichlorofluoromethane B204713-BLK1 0.0050NDmg/kg 0.0015 1 1,2,3-Trichloropropane B204713-BLK1 0.0050NDmg/kg 0.0019 1 1,1,2-Trichloro-1,2,2-trifluoroethane B204713-BLK1 0.0050NDmg/kg 0.0010 1 1,2,4-Trimethylbenzene B204713-BLK1 0.0050NDmg/kg 0.00080 1 1,3,5-Trimethylbenzene B204713-BLK1 0.0050NDmg/kg 0.00066 1 Vinyl chloride B204713-BLK1 0.0050NDmg/kg 0.00059 1 Total Xylenes B204713-BLK1 0.010NDmg/kg 0.0025 1 t-Amyl Methyl ether B204713-BLK1 0.0050NDmg/kg 0.00050 1 t-Butyl alcohol B204713-BLK1 0.050NDmg/kg 0.012 1 Diisopropyl ether B204713-BLK1 0.0050NDmg/kg 0.00057 1 Ethyl t-butyl ether B204713-BLK1 0.0050NDmg/kg 0.00050 1 1,2-Dichloroethane-d4 (Surrogate)B204713-BLK1 114 %70 - 121 (LCL - UCL) 1 Toluene-d8 (Surrogate)B204713-BLK1 101 %81 - 117 (LCL - UCL) 1 4-Bromofluorobenzene (Surrogate)B204713-BLK1 102 %74 - 121 (LCL - UCL) 1 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 41 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Quality Control Report - Method Blank Analysis Constituent QC Sample ID MB Result Units Lab Quals Volatile Organic Analysis (EPA Method 8260B) Run #MDLPQL QC Batch ID: B204943 Benzene B204943-BLK1 0.0050NDmg/kg 0.00067 2 Bromobenzene B204943-BLK1 0.0050NDmg/kg 0.00087 2 Bromochloromethane B204943-BLK1 0.0050NDmg/kg 0.00081 2 Bromodichloromethane B204943-BLK1 0.0050NDmg/kg 0.00078 2 Bromoform B204943-BLK1 0.0050NDmg/kg 0.00070 2 Bromomethane B204943-BLK1 0.0050NDmg/kg 0.0017 2 n-Butylbenzene B204943-BLK1 0.0050NDmg/kg 0.00076 2 sec-Butylbenzene B204943-BLK1 0.0050NDmg/kg 0.00071 2 tert-Butylbenzene B204943-BLK1 0.0050NDmg/kg 0.00085 2 Carbon tetrachloride B204943-BLK1 0.0050NDmg/kg 0.00078 2 Chlorobenzene B204943-BLK1 0.0050NDmg/kg 0.00077 2 Chloroethane B204943-BLK1 0.0050NDmg/kg 0.0011 2 Chloroform B204943-BLK1 0.0050NDmg/kg 0.00090 2 Chloromethane B204943-BLK1 0.0050NDmg/kg 0.0011 2 2-Chlorotoluene B204943-BLK1 0.0050NDmg/kg 0.00087 2 4-Chlorotoluene B204943-BLK1 0.0050NDmg/kg 0.00070 2 Dibromochloromethane B204943-BLK1 0.0050NDmg/kg 0.00080 2 1,2-Dibromo-3-chloropropane B204943-BLK1 0.0050NDmg/kg 0.00096 2 1,2-Dibromoethane B204943-BLK1 0.0050NDmg/kg 0.00082 2 Dibromomethane B204943-BLK1 0.0050NDmg/kg 0.0014 2 1,2-Dichlorobenzene B204943-BLK1 0.0050NDmg/kg 0.00079 2 1,4-Dichlorobenzene B204943-BLK1 0.0050NDmg/kg 0.00073 2 Dichlorodifluoromethane B204943-BLK1 0.0050NDmg/kg 0.00079 2 1,1-Dichloroethane B204943-BLK1 0.0050NDmg/kg 0.00064 2 1,2-Dichloroethane B204943-BLK1 0.0050NDmg/kg 0.00073 2 1,1-Dichloroethene B204943-BLK1 0.0050NDmg/kg 0.0011 2 cis-1,2-Dichloroethene B204943-BLK1 0.0050NDmg/kg 0.00054 2 trans-1,2-Dichloroethene B204943-BLK1 0.0050NDmg/kg 0.0037 2 Total 1,2-Dichloroethene B204943-BLK1 0.010NDmg/kg 0.0043 2 1,2-Dichloropropane B204943-BLK1 0.0050NDmg/kg 0.00080 2 1,3-Dichloropropane B204943-BLK1 0.0050NDmg/kg 0.00067 2 2,2-Dichloropropane B204943-BLK1 0.0050NDmg/kg 0.00067 2 1,1-Dichloropropene B204943-BLK1 0.0050NDmg/kg 0.00067 2 cis-1,3-Dichloropropene B204943-BLK1 0.0050NDmg/kg 0.00058 2 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 42 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Quality Control Report - Method Blank Analysis Constituent QC Sample ID MB Result Units Lab Quals Volatile Organic Analysis (EPA Method 8260B) Run #MDLPQL QC Batch ID: B204943 trans-1,3-Dichloropropene B204943-BLK1 0.0050NDmg/kg 0.00066 2 Total 1,3-Dichloropropene B204943-BLK1 0.010NDmg/kg 0.0013 2 Ethylbenzene B204943-BLK1 0.0050NDmg/kg 0.00069 2 Hexachlorobutadiene B204943-BLK1 0.0050NDmg/kg 0.00067 2 Isopropylbenzene B204943-BLK1 0.0050NDmg/kg 0.00080 2 p-Isopropyltoluene B204943-BLK1 0.0050NDmg/kg 0.00059 2 Methylene chloride B204943-BLK1 0.010NDmg/kg 0.0011 2 Methyl t-butyl ether B204943-BLK1 0.0050NDmg/kg 0.00056 2 Naphthalene B204943-BLK1 0.0050NDmg/kg 0.00099 2 n-Propylbenzene B204943-BLK1 0.0050NDmg/kg 0.00071 2 Styrene B204943-BLK1 0.0050NDmg/kg 0.00062 2 1,1,1,2-Tetrachloroethane B204943-BLK1 0.0050NDmg/kg 0.00095 2 1,1,2,2-Tetrachloroethane B204943-BLK1 0.0050NDmg/kg 0.00084 2 Tetrachloroethene B204943-BLK1 0.0050NDmg/kg 0.00097 2 Toluene B204943-BLK1 0.0050NDmg/kg 0.00069 2 1,2,3-Trichlorobenzene B204943-BLK1 0.0050NDmg/kg 0.0015 2 1,2,4-Trichlorobenzene B204943-BLK1 0.0050NDmg/kg 0.0014 2 1,1,1-Trichloroethane B204943-BLK1 0.0050NDmg/kg 0.00067 2 1,1,2-Trichloroethane B204943-BLK1 0.0050NDmg/kg 0.00094 2 Trichloroethene B204943-BLK1 0.0050NDmg/kg 0.00074 2 Trichlorofluoromethane B204943-BLK1 0.0050NDmg/kg 0.0015 2 1,2,3-Trichloropropane B204943-BLK1 0.0050NDmg/kg 0.0019 2 1,1,2-Trichloro-1,2,2-trifluoroethane B204943-BLK1 0.0050NDmg/kg 0.0010 2 1,2,4-Trimethylbenzene B204943-BLK1 0.0050NDmg/kg 0.00080 2 1,3,5-Trimethylbenzene B204943-BLK1 0.0050NDmg/kg 0.00066 2 Vinyl chloride B204943-BLK1 0.0050NDmg/kg 0.00059 2 Total Xylenes B204943-BLK1 0.010NDmg/kg 0.0025 2 t-Amyl Methyl ether B204943-BLK1 0.0050NDmg/kg 0.00050 2 t-Butyl alcohol B204943-BLK1 0.050NDmg/kg 0.012 2 Diisopropyl ether B204943-BLK1 0.0050NDmg/kg 0.00057 2 Ethyl t-butyl ether B204943-BLK1 0.0050NDmg/kg 0.00050 2 p- & m-Xylenes B204943-BLK1 0.0050NDmg/kg 0.0015 2 o-Xylene B204943-BLK1 0.0050NDmg/kg 0.00093 2 1,2-Dichloroethane-d4 (Surrogate)B204943-BLK1 114 %70 - 121 (LCL - UCL) 2 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 43 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Quality Control Report - Method Blank Analysis Constituent QC Sample ID MB Result Units Lab Quals Volatile Organic Analysis (EPA Method 8260B) Run #MDLPQL QC Batch ID: B204943 Toluene-d8 (Surrogate)B204943-BLK1 99.0 %81 - 117 (LCL - UCL) 2 4-Bromofluorobenzene (Surrogate)B204943-BLK1 103 %74 - 121 (LCL - UCL) 2 Run #QC Sample ID QC Type Method Prep Date Run Analyst Instrument DilutionDate Time 1 B204713-BLK1 PB EPA-8260B EAB MS-V18 101/24/25 01/24/25 10:43 2 B204943-BLK1 PB EPA-8260B EAB MS-V18 101/27/25 01/27/25 13:08 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 44 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Quality Control Report - Laboratory Control Sample Constituent Control Limits PercentPercentSpike QC Sample ID Type Result Level Units Recovery RPD Recovery RPD Quals Volatile Organic Analysis (EPA Method 8260B) Run # Lab QC Batch ID: B204713 Benzene B204713-BS1 LCS 0.12640 0.12500 101 70 - 130mg/kg 1 Bromodichloromethane B204713-BS1 LCS 0.11956 0.12500 95.6 70 - 130mg/kg 1 Chlorobenzene B204713-BS1 LCS 0.11611 0.12500 92.9 70 - 130mg/kg 1 Chloroethane B204713-BS1 LCS 0.12473 0.12500 99.8 70 - 130mg/kg 1 1,4-Dichlorobenzene B204713-BS1 LCS 0.11403 0.12500 91.2 70 - 130mg/kg 1 1,1-Dichloroethane B204713-BS1 LCS 0.12661 0.12500 101 70 - 130mg/kg 1 1,1-Dichloroethene B204713-BS1 LCS 0.12680 0.12500 101 70 - 130mg/kg 1 Toluene B204713-BS1 LCS 0.12128 0.12500 97.0 70 - 130mg/kg 1 Trichloroethene B204713-BS1 LCS 0.11443 0.12500 91.5 70 - 130mg/kg 1 1,2-Dichloroethane-d4 (Surrogate)B204713-BS1 LCS 0.056320 0.050000 113 70 - 121mg/kg 1 Toluene-d8 (Surrogate)B204713-BS1 LCS 0.051640 0.050000 103 81 - 117mg/kg 1 4-Bromofluorobenzene (Surrogate)B204713-BS1 LCS 0.050590 0.050000 101 74 - 121mg/kg 1 QC Batch ID: B204943 Benzene B204943-BS1 LCS 0.11127 0.12500 89.0 70 - 130mg/kg 2 Bromodichloromethane B204943-BS1 LCS 0.097000 0.12500 77.6 70 - 130mg/kg 2 Chlorobenzene B204943-BS1 LCS 0.10110 0.12500 80.9 70 - 130mg/kg 2 Chloroethane B204943-BS1 LCS 0.12427 0.12500 99.4 70 - 130mg/kg 2 1,4-Dichlorobenzene B204943-BS1 LCS 0.098930 0.12500 79.1 70 - 130mg/kg 2 1,1-Dichloroethane B204943-BS1 LCS 0.11090 0.12500 88.7 70 - 130mg/kg 2 1,1-Dichloroethene B204943-BS1 LCS 0.12567 0.12500 101 70 - 130mg/kg 2 Toluene B204943-BS1 LCS 0.10939 0.12500 87.5 70 - 130mg/kg 2 Trichloroethene B204943-BS1 LCS 0.10554 0.12500 84.4 70 - 130mg/kg 2 1,2-Dichloroethane-d4 (Surrogate)B204943-BS1 LCS 0.058430 0.050000 117 70 - 121mg/kg 2 Toluene-d8 (Surrogate)B204943-BS1 LCS 0.050500 0.050000 101 81 - 117mg/kg 2 4-Bromofluorobenzene (Surrogate)B204943-BS1 LCS 0.051120 0.050000 102 74 - 121mg/kg 2 Run #QC Sample ID QC Type Method Prep Date Run Analyst Instrument DilutionDate Time 1 B204713-BS1 LCS EPA-8260B EAB MS-V18 101/24/25 01/24/25 11:07 2 B204943-BS1 LCS EPA-8260B EAB MS-V18 101/27/25 01/27/25 13:32 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 45 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Quality Control Report - Precision & Accuracy Constituent Sample IDType Result Result Added Units RPD Recovery RPD Recovery Quals Source Spike Percent Percent Control Limits Volatile Organic Analysis (EPA Method 8260B) Source Lab R# QC Batch ID: B204713 Used client sample: N MSBenzene 0.10424 70 - 130ND0.12500 83.42501250-01 mg/kg 1 MSD 0.12164 15.4 20 70 - 130ND0.12500 97.32501250-01 mg/kg 2 MSBromodichloromethane 0.10131 70 - 130ND0.12500 81.02501250-01 mg/kg 1 MSD 0.11406 11.8 20 70 - 130ND0.12500 91.22501250-01 mg/kg 2 MSChlorobenzene 0.092000 70 - 130ND0.12500 73.62501250-01 mg/kg 1 MSD 0.10689 15.0 20 70 - 130ND0.12500 85.52501250-01 mg/kg 2 MSChloroethane 0.10328 70 - 130ND0.12500 82.62501250-01 mg/kg 1 MSD 0.12110 15.9 20 70 - 130ND0.12500 96.92501250-01 mg/kg 2 MS1,4-Dichlorobenzene 0.086810 70 - 130ND0.12500 69.4 Q032501250-01 mg/kg 1 MSD 0.10033 14.4 20 70 - 130ND0.12500 80.32501250-01 mg/kg 2 MS1,1-Dichloroethane 0.10439 70 - 130ND0.12500 83.52501250-01 mg/kg 1 MSD 0.12191 15.5 20 70 - 130ND0.12500 97.52501250-01 mg/kg 2 MS1,1-Dichloroethene 0.10530 70 - 130ND0.12500 84.22501250-01 mg/kg 1 MSD 0.12377 16.1 20 70 - 130ND0.12500 99.02501250-01 mg/kg 2 MSToluene 0.098940 70 - 130ND0.12500 79.22501250-01 mg/kg 1 MSD 0.11413 14.3 20 70 - 130ND0.12500 91.32501250-01 mg/kg 2 MSTrichloroethene 0.091910 70 - 130ND0.12500 73.52501250-01 mg/kg 1 MSD 0.10623 14.5 20 70 - 130ND0.12500 85.02501250-01 mg/kg 2 MS1,2-Dichloroethane-d4 (Surrogate)0.059130 70 - 121ND0.050000 1182501250-01 mg/kg 1 MSD 0.058770 0.6 70 - 121ND0.050000 1182501250-01 mg/kg 2 MSToluene-d8 (Surrogate)0.051780 81 - 117ND0.050000 1042501250-01 mg/kg 1 MSD 0.051360 0.8 81 - 117ND0.050000 1032501250-01 mg/kg 2 MS4-Bromofluorobenzene (Surrogate)0.052470 74 - 121ND0.050000 1052501250-01 mg/kg 1 MSD 0.051410 2.0 74 - 121ND0.050000 1032501250-01 mg/kg 2 QC Batch ID: B204943 Used client sample: Y - Description: USTGP-S-2', 01/24/2025 13:25 MSBenzene 0.10196 70 - 130ND0.12500 81.62501345-02 mg/kg 3 MSD 0.10192 0.0 20 70 - 130ND0.12500 81.52501345-02 mg/kg 4 MSBromodichloromethane 0.10103 70 - 130ND0.12500 80.82501345-02 mg/kg 3 MSD 0.10285 1.8 20 70 - 130ND0.12500 82.32501345-02 mg/kg 4 MSChlorobenzene 0.10011 70 - 130ND0.12500 80.12501345-02 mg/kg 3 MSD 0.099800 0.3 20 70 - 130ND0.12500 79.82501345-02 mg/kg 4 MSChloroethane 0.10801 70 - 130ND0.12500 86.42501345-02 mg/kg 3 MSD 0.10633 1.6 20 70 - 130ND0.12500 85.12501345-02 mg/kg 4 MS1,4-Dichlorobenzene 0.097300 70 - 130ND0.12500 77.82501345-02 mg/kg 3 MSD 0.098990 1.7 20 70 - 130ND0.12500 79.22501345-02 mg/kg 4 MS1,1-Dichloroethane 0.10223 70 - 130ND0.12500 81.82501345-02 mg/kg 3 MSD 0.10028 1.9 20 70 - 130ND0.12500 80.22501345-02 mg/kg 4 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 46 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Quality Control Report - Precision & Accuracy Constituent Sample IDType Result Result Added Units RPD Recovery RPD Recovery Quals Source Spike Percent Percent Control Limits Volatile Organic Analysis (EPA Method 8260B) Source Lab R# QC Batch ID: B204943 Used client sample: Y - Description: USTGP-S-2', 01/24/2025 13:25 MS1,1-Dichloroethene 0.10283 70 - 130ND0.12500 82.32501345-02 mg/kg 3 MSD 0.10242 0.4 20 70 - 130ND0.12500 81.92501345-02 mg/kg 4 MSToluene 0.10067 70 - 130ND0.12500 80.52501345-02 mg/kg 3 MSD 0.099770 0.9 20 70 - 130ND0.12500 79.82501345-02 mg/kg 4 MSTrichloroethene 0.094850 70 - 130ND0.12500 75.92501345-02 mg/kg 3 MSD 0.095210 0.4 20 70 - 130ND0.12500 76.22501345-02 mg/kg 4 MS1,2-Dichloroethane-d4 (Surrogate)0.056040 70 - 121ND0.050000 1122501345-02 mg/kg 3 MSD 0.055620 0.8 70 - 121ND0.050000 1112501345-02 mg/kg 4 MSToluene-d8 (Surrogate)0.050420 81 - 117ND0.050000 1012501345-02 mg/kg 3 MSD 0.050290 0.3 81 - 117ND0.050000 1012501345-02 mg/kg 4 MS4-Bromofluorobenzene (Surrogate)0.051100 74 - 121ND0.050000 1022501345-02 mg/kg 3 MSD 0.050790 0.6 74 - 121ND0.050000 1022501345-02 mg/kg 4 Run #QC Sample ID QC Type Method Prep Date Run Analyst Instrument DilutionDate Time 1 B204713-MS1 MS EPA-8260B EAB MS-V18 101/24/25 01/24/25 11:32 2 B204713-MSD1 MSD EPA-8260B EAB MS-V18 101/24/25 01/24/25 11:56 3 B204943-MS1 MS EPA-8260B EAB MS-V18 101/27/25 01/27/25 13:56 4 B204943-MSD1 MSD EPA-8260B EAB MS-V18 101/27/25 01/27/25 14:21 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 47 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Quality Control Report - Method Blank Analysis Constituent QC Sample ID MB Result Units Lab Quals Purgeable Aromatics and Total Petroleum Hydrocarbons Run #MDLPQL QC Batch ID: B204999 Gasoline Range Organics (C4 - C12)B204999-BLK1 1.0NDmg/kg 0.42 1 a,a,a-Trifluorotoluene (FID Surrogate)B204999-BLK1 125 %70 - 130 (LCL - UCL) 1 Run #QC Sample ID QC Type Method Prep Date Run Analyst Instrument DilutionDate Time 1 B204999-BLK1 PB EPA-8015B TDH GC-V8 101/27/25 01/27/25 12:59 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 48 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Quality Control Report - Laboratory Control Sample Constituent Control Limits PercentPercentSpike QC Sample ID Type Result Level Units Recovery RPD Recovery RPD Quals Purgeable Aromatics and Total Petroleum Hydrocarbons Run # Lab QC Batch ID: B204999 Gasoline Range Organics (C4 - C12)B204999-BS1 LCS 4.7830 5.0000 95.7 85 - 115mg/kg 1 a,a,a-Trifluorotoluene (FID Surrogate) B204999-BS1 LCS 0.042000 0.040000 105 70 - 130mg/kg 1 Run #QC Sample ID QC Type Method Prep Date Run Analyst Instrument DilutionDate Time 1 B204999-BS1 LCS EPA-8015B TDH GC-V8 101/27/25 01/27/25 13:48 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 49 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Quality Control Report - Precision & Accuracy Constituent Sample IDType Result Result Added Units RPD Recovery RPD Recovery Quals Source Spike Percent Percent Control Limits Purgeable Aromatics and Total Petroleum Hydrocarbons Source Lab R# QC Batch ID: B204999 Used client sample: N MSGasoline Range Organics (C4 - C12) 5.0122 70 - 130ND5.0813 98.62501324-01 mg/kg 1 MSD 5.4127 7.7 20 70 - 130ND4.9603 1092501324-01 mg/kg 2 MSa,a,a-Trifluorotoluene (FID Surrogate) 0.044715 70 - 130ND0.040650 1102501324-01 mg/kg 1 MSD 0.044643 0.2 70 - 130ND0.039683 1122501324-01 mg/kg 2 Run #QC Sample ID QC Type Method Prep Date Run Analyst Instrument DilutionDate Time 1 B204999-MS1 MS EPA-8015B TDH GC-V8 1.01601/27/25 01/27/25 14:13 2 B204999-MSD1 MSD EPA-8015B TDH GC-V8 0.99201/27/25 01/27/25 14:37 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 50 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Quality Control Report - Method Blank Analysis Constituent QC Sample ID MB Result Units Lab Quals Total Petroleum Hydrocarbons Run #MDLPQL QC Batch ID: B205022 TPH - Diesel Range Organics (C12 - C22) B205022-BLK1 1.0NDmg/kg 0.70 1 TPH - Oil Range Organics (C23 - C32)B205022-BLK1 2.0NDmg/kg 0.98 1 Tetracosane (Surrogate)B205022-BLK1 89.6 %40 - 130 (LCL - UCL) 1 Run #QC Sample ID QC Type Method Prep Date Run Analyst Instrument DilutionDate Time 1 B205022-BLK1 PB EPA-8015B BUP GC-19 1.01001/27/25 01/30/25 13:36 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 51 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Quality Control Report - Laboratory Control Sample Constituent Control Limits PercentPercentSpike QC Sample ID Type Result Level Units Recovery RPD Recovery RPD Quals Total Petroleum Hydrocarbons Run # Lab QC Batch ID: B205022 TPH - Diesel Range Organics (C12 - C22) B205022-BS1 LCS 12.518 16.611 75.4 58 - 120mg/kg 1 TPH - Oil Range Organics (C23 - C32) B205022-BS1 LCS 30.547 33.223 91.9 40 - 130mg/kg 1 Tetracosane (Surrogate)B205022-BS1 LCS 0.64701 0.66445 97.4 40 - 130mg/kg 1 Run #QC Sample ID QC Type Method Prep Date Run Analyst Instrument DilutionDate Time 1 B205022-BS1 LCS EPA-8015B BUP GC-19 0.99701/27/25 01/30/25 13:54 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 52 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Quality Control Report - Precision & Accuracy Constituent Sample IDType Result Result Added Units RPD Recovery RPD Recovery Quals Source Spike Percent Percent Control Limits Total Petroleum Hydrocarbons Source Lab R# QC Batch ID: B205022 Used client sample: Y - Description: USTD-M-2', 01/24/2025 13:40 MSTPH - Diesel Range Organics (C12 - C22) 12.947 49 - 120ND16.556 78.22501345-03 mg/kg 1 MSD 12.697 2.0 30 49 - 120ND16.892 75.22501345-03 mg/kg 2 MSTPH - Oil Range Organics (C23 - C32) 31.449 40 - 130ND33.113 95.02501345-03 mg/kg 1 MSD 30.855 1.9 30 40 - 130ND33.784 91.32501345-03 mg/kg 2 MSTetracosane (Surrogate)0.67980 40 - 130ND0.66225 1032501345-03 mg/kg 1 MSD 0.69527 2.2 40 - 130ND0.67568 1032501345-03 mg/kg 2 Run #QC Sample ID QC Type Method Prep Date Run Analyst Instrument DilutionDate Time 1 B205022-MS1 MS EPA-8015B BUP GC-19 0.99301/27/25 01/30/25 14:11 2 B205022-MSD1 MSD EPA-8015B BUP GC-19 1.01401/27/25 01/30/25 14:29 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 53 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Quality Control Report - Method Blank Analysis Constituent QC Sample ID MB Result Units Lab Quals Total Concentrations (TTLC) Run #MDLPQL QC Batch ID: B205008 Antimony B205008-BLK1 5.0NDmg/kg 0.33 1 Arsenic B205008-BLK1 1.0NDmg/kg 0.40 1 Barium B205008-BLK1 0.50NDmg/kg 0.18 1 Beryllium B205008-BLK1 0.50NDmg/kg 0.047 1 Cadmium B205008-BLK1 0.50NDmg/kg 0.052 1 Chromium B205008-BLK1 0.50NDmg/kg 0.050 1 Cobalt B205008-BLK1 2.5NDmg/kg 0.098 1 Copper B205008-BLK1 1.0NDmg/kg 0.050 1 Lead B205008-BLK1 2.5NDmg/kg 0.41 1 Molybdenum B205008-BLK1 2.5 J0.050000 mg/kg 0.050 1 Nickel B205008-BLK1 0.50NDmg/kg 0.15 1 Selenium B205008-BLK1 1.0NDmg/kg 0.98 1 Silver B205008-BLK1 0.50NDmg/kg 0.067 1 Thallium B205008-BLK1 5.0NDmg/kg 0.64 1 Vanadium B205008-BLK1 0.50NDmg/kg 0.11 1 Zinc B205008-BLK1 2.5 J1.2800 mg/kg 0.087 1 QC Batch ID: B205179 Mercury B205179-BLK1 0.16NDmg/kg 0.016 2 Run #QC Sample ID QC Type Method Prep Date Run Analyst Instrument DilutionDate Time 1 B205008-BLK1 PB EPA-6010B JRG ICP5 101/27/25 01/27/25 19:12 2 B205179-BLK1 PB EPA-7471A TMT CETAC3 101/30/25 01/30/25 11:08 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 54 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Quality Control Report - Laboratory Control Sample Constituent Control Limits PercentPercentSpike QC Sample ID Type Result Level Units Recovery RPD Recovery RPD Quals Total Concentrations (TTLC) Run # Lab QC Batch ID: B205008 Antimony B205008-BS1 LCS 102.65 100.00 103 75 - 125mg/kg 1 Arsenic B205008-BS1 LCS 21.370 20.000 107 75 - 125mg/kg 1 Barium B205008-BS1 LCS 114.61 100.00 115 75 - 125mg/kg 1 Beryllium B205008-BS1 LCS 11.163 10.000 112 75 - 125mg/kg 1 Cadmium B205008-BS1 LCS 11.395 10.000 114 75 - 125mg/kg 1 Chromium B205008-BS1 LCS 112.09 100.00 112 75 - 125mg/kg 1 Cobalt B205008-BS1 LCS 114.79 100.00 115 75 - 125mg/kg 1 Copper B205008-BS1 LCS 108.24 100.00 108 75 - 125mg/kg 1 Lead B205008-BS1 LCS 116.89 100.00 117 75 - 125mg/kg 1 Molybdenum B205008-BS1 LCS 113.45 100.00 113 75 - 125mg/kg 1 Nickel B205008-BS1 LCS 114.30 100.00 114 75 - 125mg/kg 1 Selenium B205008-BS1 LCS 20.320 20.000 102 75 - 125mg/kg 1 Silver B205008-BS1 LCS 11.055 10.000 111 75 - 125mg/kg 1 Thallium B205008-BS1 LCS 114.11 100.00 114 75 - 125mg/kg 1 Vanadium B205008-BS1 LCS 112.26 100.00 112 75 - 125mg/kg 1 Zinc B205008-BS1 LCS 111.16 100.00 111 75 - 125mg/kg 1 QC Batch ID: B205179 Mercury B205179-BS1 LCS 0.78080 0.80000 97.6 80 - 120mg/kg 2 Run #QC Sample ID QC Type Method Prep Date Run Analyst Instrument DilutionDate Time 1 B205008-BS1 LCS EPA-6010B JRG ICP5 101/27/25 01/27/25 19:14 2 B205179-BS1 LCS EPA-7471A TMT CETAC3 101/30/25 01/30/25 11:11 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 55 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Quality Control Report - Precision & Accuracy Constituent Sample IDType Result Result Added Units RPD Recovery RPD Recovery Quals Source Spike Percent Percent Control Limits Total Concentrations (TTLC) Source Lab R# QC Batch ID: B205008 Used client sample: N Antimony DUP ND 20ND2501319-01 mg/kg 1 MS 33.430 16 - 119ND100.00 33.42501319-01 mg/kg 2 MSD 33.285 0.4 20 16 - 119ND100.00 33.32501319-01 mg/kg 3 Arsenic DUP 6.6550 0.8 206.71002501319-01 mg/kg 1 MS 27.805 75 - 1256.7100 20.000 1052501319-01 mg/kg 2 MSD 28.615 2.9 20 75 - 1256.7100 20.000 1102501319-01 mg/kg 3 Barium DUP 142.26 4.4 20136.112501319-01 mg/kg 1 MS 248.92 75 - 125136.11 100.00 1132501319-01 mg/kg 2 MSD 276.13 10.4 20 75 - 125136.11 100.00 140 Q032501319-01 mg/kg 3 Beryllium DUP 0.27745 0.7 200.27560 J2501319-01 mg/kg 1 MS 11.122 75 - 1250.27560 10.000 1082501319-01 mg/kg 2 MSD 11.238 1.0 20 75 - 1250.27560 10.000 1102501319-01 mg/kg 3 Cadmium DUP 0.27000 5.4 200.28500 J2501319-01 mg/kg 1 MS 10.880 75 - 1250.28500 10.000 1062501319-01 mg/kg 2 MSD 11.005 1.1 20 75 - 1250.28500 10.000 1072501319-01 mg/kg 3 Chromium DUP 49.720 14.6 2042.9552501319-01 mg/kg 1 MS 157.39 75 - 12542.955 100.00 1142501319-01 mg/kg 2 MSD 157.94 0.4 20 75 - 12542.955 100.00 1152501319-01 mg/kg 3 Cobalt DUP 10.755 5.0 2010.2302501319-01 mg/kg 1 MS 115.86 75 - 12510.230 100.00 1062501319-01 mg/kg 2 MSD 118.06 1.9 20 75 - 12510.230 100.00 1082501319-01 mg/kg 3 Copper DUP 15.490 2.3 2015.1402501319-01 mg/kg 1 MS 127.64 75 - 12515.140 100.00 1122501319-01 mg/kg 2 MSD 130.20 2.0 20 75 - 12515.140 100.00 1152501319-01 mg/kg 3 Lead DUP 3.8900 3.3 204.02002501319-01 mg/kg 1 MS 111.75 75 - 1254.0200 100.00 1082501319-01 mg/kg 2 MSD 112.75 0.9 20 75 - 1254.0200 100.00 1092501319-01 mg/kg 3 Molybdenum DUP 0.54500 39.1 200.81000 J,A022501319-01 mg/kg 1 MS 101.46 75 - 1250.81000 100.00 1012501319-01 mg/kg 2 MSD 102.28 0.8 20 75 - 1250.81000 100.00 1012501319-01 mg/kg 3 Nickel DUP 71.960 26.6 2055.075 Q012501319-01 mg/kg 1 MS 165.23 75 - 12555.075 100.00 1102501319-01 mg/kg 2 MSD 165.02 0.1 20 75 - 12555.075 100.00 1102501319-01 mg/kg 3 Selenium DUP ND 20ND2501319-01 mg/kg 1 MS 17.865 75 - 125ND20.000 89.32501319-01 mg/kg 2 MSD 18.285 2.3 20 75 - 125ND20.000 91.42501319-01 mg/kg 3 Silver DUP ND 20ND2501319-01 mg/kg 1 MS 11.285 75 - 125ND10.000 1132501319-01 mg/kg 2 MSD 11.335 0.4 20 75 - 125ND10.000 1132501319-01 mg/kg 3 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 56 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Quality Control Report - Precision & Accuracy Constituent Sample IDType Result Result Added Units RPD Recovery RPD Recovery Quals Source Spike Percent Percent Control Limits Total Concentrations (TTLC) Source Lab R# QC Batch ID: B205008 Used client sample: N Thallium DUP ND 20ND2501319-01 mg/kg 1 MS 104.95 75 - 125ND100.00 1052501319-01 mg/kg 2 MSD 105.58 0.6 20 75 - 125ND100.00 1062501319-01 mg/kg 3 Vanadium DUP 48.960 3.9 2047.0752501319-01 mg/kg 1 MS 163.00 75 - 12547.075 100.00 1162501319-01 mg/kg 2 MSD 166.12 1.9 20 75 - 12547.075 100.00 1192501319-01 mg/kg 3 Zinc DUP 50.975 13.7 2044.4402501319-01 mg/kg 1 MS 151.70 75 - 12544.440 100.00 1072501319-01 mg/kg 2 MSD 159.12 4.8 20 75 - 12544.440 100.00 1152501319-01 mg/kg 3 QC Batch ID: B205179 Used client sample: N Mercury DUP 345.08 3.0 20355.742501022-31 mg/kg 4 MS 345.08 80 - 120355.74 0.81967 -1300 A032501022-31 mg/kg 5 MSD 345.08 0 20 80 - 120355.74 0.81967 -1300 A032501022-31 mg/kg 6 Run #QC Sample ID QC Type Method Prep Date Run Analyst Instrument DilutionDate Time 1 B205008-DUP1 DUP EPA-6010B JRG ICP5 101/27/25 01/27/25 19:18 2 B205008-MS1 MS EPA-6010B JRG ICP5 101/27/25 01/27/25 19:21 3 B205008-MSD1 MSD EPA-6010B JRG ICP5 101/27/25 01/27/25 19:23 4 B205179-DUP1 DUP EPA-7471A TMT CETAC3 512.3001/30/25 01/30/25 11:33 5 B205179-MS1 MS EPA-7471A TMT CETAC3 512.3001/30/25 01/30/25 11:35 6 B205179-MSD1 MSD EPA-7471A TMT CETAC3 512.3001/30/25 01/30/25 11:36 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 57 of 58Report ID: 1001567115 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCC,I UST Bob Becker Reported:01/30/2025 18:34 Notes And Definitions J Estimated Value (CLP Flag) MDL Method Detection Limit ND Analyte Not Detected PQL Practical Quantitation Limit A02 The difference between duplicate readings is less than the quantitation limit. A03 The sample concentration was more than 4 times the spike level. A57 Chromatogram not typical of motor oil. Q01 Sample precision is not within the control limits. Q03 Matrix spike recovery(s) was(were) not within the control limits. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 58 of 58Report ID: 1001567115 Date of Report: 01/31/2025 Bob Becker Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Client Project:19680 KCCI, UST BCL Project: BCL Work Order: Enclosed are the results of analyses for samples received by the laboratory on 1/28/2025. If you have any questions concerning this report, please feel free to contact me. Invoice ID: 2501413 Soil B511328 Contact Person: Ragen Williams Sincerely, Client Service Rep Certifications: CA ELAP #1186; NV #CA00014; OR ELAP #4032-001; AK UST101 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 1 of 43Report ID: 1001567227 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCCI, UST Bob Becker Reported:01/31/2025 12:21 Laboratory / Client Sample Cross Reference Laboratory ID Client Sample Information 2501413-01 Sampling Point: Sampling Location: Project Number: COC Number:--- --- --- USTG-S-3 Receive Date: Sampling Date: Sample Depth: Lab Matrix: --- 01/28/2025 11:38 01/28/2025 10:12 Solids Carlos Enriquez-VillegasSampled By:Sample Type:Soil 2501413-02 Sampling Point: Sampling Location: Project Number: COC Number:--- --- --- USTG-N-3 Receive Date: Sampling Date: Sample Depth: Lab Matrix: --- 01/28/2025 11:38 01/28/2025 10:15 Solids Carlos Enriquez-VillegasSampled By:Sample Type:Soil 2501413-03 Sampling Point: Sampling Location: Project Number: COC Number:--- --- --- USTGP-S-3 Receive Date: Sampling Date: Sample Depth: Lab Matrix: --- 01/28/2025 11:38 01/28/2025 10:18 Solids Carlos Enriquez-VillegasSampled By:Sample Type:Soil 2501413-04 Sampling Point: Sampling Location: Project Number: COC Number:--- --- --- STPW- Comp Receive Date: Sampling Date: Sample Depth: Lab Matrix: --- 01/28/2025 11:38 01/28/2025 10:45 Solids Carlos Enriquez-VillegasSampled By:Sample Type:Soil 2501413-05 Sampling Point: Sampling Location: Project Number: COC Number:--- --- --- STPE- Comp Receive Date: Sampling Date: Sample Depth: Lab Matrix: --- 01/28/2025 11:38 01/28/2025 10:50 Solids Carlos Enriquez-VillegasSampled By:Sample Type:Soil The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 2 of 43Report ID: 1001567227 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCCI, UST Bob Becker Reported:01/31/2025 12:21 BCL Sample ID:2501413-01 Client Sample Name: Constituent Result Units Method Limits Quals TTLC Lab Draft: Volatile Organic Analysis (EPA Method 8260B) DCN USTG-S-3, 1/28/2025 10:12:00AM, Carlos Enriquez-Villegas MDLPQL Benzene mg/kg 0.00067ND0.0050 EPA-8260B 1 Bromobenzene mg/kg 0.00087ND0.0050 EPA-8260B 1 Bromochloromethane mg/kg 0.00081ND0.0050 EPA-8260B 1 Bromodichloromethane mg/kg 0.00078ND0.0050 EPA-8260B 1 Bromoform mg/kg 0.00070ND0.0050 EPA-8260B 1 Bromomethane mg/kg 0.0017ND0.0050 EPA-8260B 1 n-Butylbenzene mg/kg 0.00076ND0.0050 EPA-8260B 1 sec-Butylbenzene mg/kg 0.00071ND0.0050 EPA-8260B 1 tert-Butylbenzene mg/kg 0.00085ND0.0050 EPA-8260B 1 Carbon tetrachloride mg/kg 0.00078ND0.0050 EPA-8260B 1 Chlorobenzene mg/kg 0.00077ND0.0050 EPA-8260B 1 Chloroethane mg/kg 0.0011ND0.0050 EPA-8260B 1 Chloroform mg/kg 0.00090ND0.0050 EPA-8260B 1 Chloromethane mg/kg 0.0011ND0.0050 EPA-8260B 1 2-Chlorotoluene mg/kg 0.00087ND0.0050 EPA-8260B 1 4-Chlorotoluene mg/kg 0.00070ND0.0050 EPA-8260B 1 Dibromochloromethane mg/kg 0.00080ND0.0050 EPA-8260B 1 1,2-Dibromo-3-chloropropane mg/kg 0.00096ND0.0050 EPA-8260B 1 1,2-Dibromoethane mg/kg 0.00082ND0.0050 EPA-8260B 1 Dibromomethane mg/kg 0.0014ND0.0050 EPA-8260B 1 1,2-Dichlorobenzene mg/kg 0.00079ND0.0050 EPA-8260B 1 1,4-Dichlorobenzene mg/kg 0.00073ND0.0050 EPA-8260B 1 Dichlorodifluoromethane mg/kg 0.00079ND0.0050 EPA-8260B 1 1,1-Dichloroethane mg/kg 0.00064ND0.0050 EPA-8260B 1 1,2-Dichloroethane mg/kg 0.00073ND0.0050 EPA-8260B 1 1,1-Dichloroethene mg/kg 0.0011ND0.0050 EPA-8260B 1 cis-1,2-Dichloroethene mg/kg 0.00054ND0.0050 EPA-8260B 1 trans-1,2-Dichloroethene mg/kg 0.0037ND0.0050 EPA-8260B 1 Total 1,2-Dichloroethene mg/kg 0.0043ND0.010 EPA-8260B 1 1,2-Dichloropropane mg/kg 0.00080ND0.0050 EPA-8260B 1 1,3-Dichloropropane mg/kg 0.00067ND0.0050 EPA-8260B 1 2,2-Dichloropropane mg/kg 0.00067ND0.0050 EPA-8260B 1 1,1-Dichloropropene mg/kg 0.00067ND0.0050 EPA-8260B 1 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 3 of 43Report ID: 1001567227 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCCI, UST Bob Becker Reported:01/31/2025 12:21 BCL Sample ID:2501413-01 Client Sample Name: Constituent Result Units Method Limits Quals TTLC Lab Draft: Volatile Organic Analysis (EPA Method 8260B) DCN USTG-S-3, 1/28/2025 10:12:00AM, Carlos Enriquez-Villegas MDLPQL cis-1,3-Dichloropropene mg/kg 0.00058ND0.0050 EPA-8260B 1 trans-1,3-Dichloropropene mg/kg 0.00066ND0.0050 EPA-8260B 1 Total 1,3-Dichloropropene mg/kg 0.0013ND0.010 EPA-8260B 1 Ethylbenzene mg/kg 0.00069ND0.0050 EPA-8260B 1 Hexachlorobutadiene mg/kg 0.00067ND0.0050 EPA-8260B 1 Isopropylbenzene mg/kg 0.00080ND0.0050 EPA-8260B 1 p-Isopropyltoluene mg/kg 0.00059ND0.0050 EPA-8260B 1 Methylene chloride mg/kg 0.0011ND0.010 EPA-8260B 1 Methyl t-butyl ether mg/kg 0.00056ND0.0050 EPA-8260B 1 Naphthalene mg/kg 0.00099ND0.0050 EPA-8260B 1 n-Propylbenzene mg/kg 0.00071ND0.0050 EPA-8260B 1 Styrene mg/kg 0.00062ND0.0050 EPA-8260B 1 1,1,1,2-Tetrachloroethane mg/kg 0.00095ND0.0050 EPA-8260B 1 1,1,2,2-Tetrachloroethane mg/kg 0.00084ND0.0050 EPA-8260B 1 Tetrachloroethene mg/kg 0.00097ND0.0050 EPA-8260B 1 Toluene mg/kg 0.00069ND0.0050 EPA-8260B 1 1,2,3-Trichlorobenzene mg/kg 0.0015ND0.0050 EPA-8260B 1 1,2,4-Trichlorobenzene mg/kg 0.0014ND0.0050 EPA-8260B 1 1,1,1-Trichloroethane mg/kg 0.00067ND0.0050 EPA-8260B 1 1,1,2-Trichloroethane mg/kg 0.00094ND0.0050 EPA-8260B 1 Trichloroethene mg/kg 0.00074ND0.0050 EPA-8260B 12040 Trichlorofluoromethane mg/kg 0.0015ND0.0050 EPA-8260B 1 1,2,3-Trichloropropane mg/kg 0.0019ND0.0050 EPA-8260B 1 1,1,2-Trichloro-1,2,2-trifluoroethane mg/kg 0.0010ND0.0050 EPA-8260B 1 1,2,4-Trimethylbenzene mg/kg 0.00080ND0.0050 EPA-8260B 1 1,3,5-Trimethylbenzene mg/kg 0.00066ND0.0050 EPA-8260B 1 Vinyl chloride mg/kg 0.00059ND0.0050 EPA-8260B 1 Total Xylenes mg/kg 0.0025ND0.010 EPA-8260B 1 t-Amyl Methyl ether mg/kg 0.00050ND0.0050 EPA-8260B 1 t-Butyl alcohol mg/kg 0.012ND0.050 EPA-8260B 1 Diisopropyl ether mg/kg 0.00057ND0.0050 EPA-8260B 1 Ethanol mg/kg 0.16ND1.0 EPA-8260B 1 Ethyl t-butyl ether mg/kg 0.00050ND0.0050 EPA-8260B 1 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 4 of 43Report ID: 1001567227 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCCI, UST Bob Becker Reported:01/31/2025 12:21 BCL Sample ID:2501413-01 Client Sample Name: Constituent Result Units Method Limits Quals TTLC Lab Draft: Volatile Organic Analysis (EPA Method 8260B) DCN USTG-S-3, 1/28/2025 10:12:00AM, Carlos Enriquez-Villegas MDLPQL 1,2-Dichloroethane-d4 (Surrogate)%70 - 121 (LCL - UCL)114 EPA-8260B 1 Toluene-d8 (Surrogate)%81 - 117 (LCL - UCL)101 EPA-8260B 1 4-Bromofluorobenzene (Surrogate)%74 - 121 (LCL - UCL)102 EPA-8260B 1 QC Batch IDDilutionInstrumentAnalystDate/Time Run Prep DateMethodDCN Prep Method 01/29/25 05:00 01/29/25 11:21 EAB MS-V18 1 B205097EPA-8260B 1 EPA 5030 Soil MS DCN = Data Continuation Number The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 5 of 43Report ID: 1001567227 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCCI, UST Bob Becker Reported:01/31/2025 12:21 BCL Sample ID:2501413-01 Client Sample Name: Constituent Result Units Method Bias Quals MB Lab Draft: Purgeable Aromatics and Total Petroleum Hydrocarbons DCN USTG-S-3, 1/28/2025 10:12:00AM, Carlos Enriquez-Villegas MDLPQL Gasoline Range Organics (C4 - C12)mg/kg 0.42ND1.0 EPA-8015B 1ND a,a,a-Trifluorotoluene (FID Surrogate)%70 - 130 (LCL - UCL)125 EPA-8015B 1 QC Batch IDDilutionInstrumentAnalystDate/Time Run Prep DateMethodDCN Prep Method 01/29/25 10:27 01/29/25 12:35 TDH GC-V8 1.006 B204999EPA-8015B 1 EPA 5030 Soil GC DCN = Data Continuation Number The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 6 of 43Report ID: 1001567227 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCCI, UST Bob Becker Reported:01/31/2025 12:21 BCL Sample ID:2501413-01 Client Sample Name: Constituent Result Units Method Limits Quals TTLC Lab Draft: Total Concentrations (TTLC) DCN USTG-S-3, 1/28/2025 10:12:00AM, Carlos Enriquez-Villegas MDLPQL Antimony mg/kg 0.33ND5.0 EPA-6010B 1500 Arsenic mg/kg 0.407.5 1.0 EPA-6010B 1500 Barium mg/kg 0.18380.50 EPA-6010B 110000 Beryllium mg/kg J0.0470.089 0.50 EPA-6010B 175 Cadmium mg/kg J0.0520.054 0.50 EPA-6010B 1100 Chromium mg/kg 0.0503.9 0.50 EPA-6010B 12500 Cobalt mg/kg J0.0981.2 2.5 EPA-6010B 18000 Copper mg/kg 0.0502.7 1.0 EPA-6010B 12500 Lead mg/kg 0.414.9 2.5 EPA-6010B 11000 Mercury mg/kg J0.0160.042 0.16 EPA-7471A 220 Molybdenum mg/kg J0.0500.87 2.5 EPA-6010B 13500 Nickel mg/kg 0.152.4 0.50 EPA-6010B 12000 Selenium mg/kg 0.98ND1.0 EPA-6010B 1100 Silver mg/kg 0.067ND0.50 EPA-6010B 1500 Thallium mg/kg 0.64ND5.0 EPA-6010B 1700 Vanadium mg/kg 0.11120.50 EPA-6010B 12400 Zinc mg/kg 0.087102.5 EPA-6010B 15000 QC Batch IDDilutionInstrumentAnalystDate/Time Run Prep DateMethodDCN Prep Method 01/29/25 16:50 01/30/25 15:52 JRG ICP5 0.990 B205166EPA-6010B 1 EPA 3050B 01/30/25 08:30 01/30/25 12:32 TMT CETAC3 1.008 B205179EPA-7471A 2 EPA 7471A DCN = Data Continuation Number The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 7 of 43Report ID: 1001567227 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCCI, UST Bob Becker Reported:01/31/2025 12:21 BCL Sample ID:2501413-02 Client Sample Name: Constituent Result Units Method Limits Quals TTLC Lab Draft: Volatile Organic Analysis (EPA Method 8260B) DCN USTG-N-3, 1/28/2025 10:15:00AM, Carlos Enriquez-Villegas MDLPQL Benzene mg/kg 0.00067ND0.0050 EPA-8260B 1 Bromobenzene mg/kg 0.00087ND0.0050 EPA-8260B 1 Bromochloromethane mg/kg 0.00081ND0.0050 EPA-8260B 1 Bromodichloromethane mg/kg 0.00078ND0.0050 EPA-8260B 1 Bromoform mg/kg 0.00070ND0.0050 EPA-8260B 1 Bromomethane mg/kg 0.0017ND0.0050 EPA-8260B 1 n-Butylbenzene mg/kg 0.00076ND0.0050 EPA-8260B 1 sec-Butylbenzene mg/kg 0.00071ND0.0050 EPA-8260B 1 tert-Butylbenzene mg/kg 0.00085ND0.0050 EPA-8260B 1 Carbon tetrachloride mg/kg 0.00078ND0.0050 EPA-8260B 1 Chlorobenzene mg/kg 0.00077ND0.0050 EPA-8260B 1 Chloroethane mg/kg 0.0011ND0.0050 EPA-8260B 1 Chloroform mg/kg 0.00090ND0.0050 EPA-8260B 1 Chloromethane mg/kg 0.0011ND0.0050 EPA-8260B 1 2-Chlorotoluene mg/kg 0.00087ND0.0050 EPA-8260B 1 4-Chlorotoluene mg/kg 0.00070ND0.0050 EPA-8260B 1 Dibromochloromethane mg/kg 0.00080ND0.0050 EPA-8260B 1 1,2-Dibromo-3-chloropropane mg/kg 0.00096ND0.0050 EPA-8260B 1 1,2-Dibromoethane mg/kg 0.00082ND0.0050 EPA-8260B 1 Dibromomethane mg/kg 0.0014ND0.0050 EPA-8260B 1 1,2-Dichlorobenzene mg/kg 0.00079ND0.0050 EPA-8260B 1 1,4-Dichlorobenzene mg/kg 0.00073ND0.0050 EPA-8260B 1 Dichlorodifluoromethane mg/kg 0.00079ND0.0050 EPA-8260B 1 1,1-Dichloroethane mg/kg 0.00064ND0.0050 EPA-8260B 1 1,2-Dichloroethane mg/kg 0.00073ND0.0050 EPA-8260B 1 1,1-Dichloroethene mg/kg 0.0011ND0.0050 EPA-8260B 1 cis-1,2-Dichloroethene mg/kg 0.00054ND0.0050 EPA-8260B 1 trans-1,2-Dichloroethene mg/kg 0.0037ND0.0050 EPA-8260B 1 Total 1,2-Dichloroethene mg/kg 0.0043ND0.010 EPA-8260B 1 1,2-Dichloropropane mg/kg 0.00080ND0.0050 EPA-8260B 1 1,3-Dichloropropane mg/kg 0.00067ND0.0050 EPA-8260B 1 2,2-Dichloropropane mg/kg 0.00067ND0.0050 EPA-8260B 1 1,1-Dichloropropene mg/kg 0.00067ND0.0050 EPA-8260B 1 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 8 of 43Report ID: 1001567227 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCCI, UST Bob Becker Reported:01/31/2025 12:21 BCL Sample ID:2501413-02 Client Sample Name: Constituent Result Units Method Limits Quals TTLC Lab Draft: Volatile Organic Analysis (EPA Method 8260B) DCN USTG-N-3, 1/28/2025 10:15:00AM, Carlos Enriquez-Villegas MDLPQL cis-1,3-Dichloropropene mg/kg 0.00058ND0.0050 EPA-8260B 1 trans-1,3-Dichloropropene mg/kg 0.00066ND0.0050 EPA-8260B 1 Total 1,3-Dichloropropene mg/kg 0.0013ND0.010 EPA-8260B 1 Ethylbenzene mg/kg 0.00069ND0.0050 EPA-8260B 1 Hexachlorobutadiene mg/kg 0.00067ND0.0050 EPA-8260B 1 Isopropylbenzene mg/kg 0.00080ND0.0050 EPA-8260B 1 p-Isopropyltoluene mg/kg 0.00059ND0.0050 EPA-8260B 1 Methylene chloride mg/kg 0.0011ND0.010 EPA-8260B 1 Methyl t-butyl ether mg/kg 0.00056ND0.0050 EPA-8260B 1 Naphthalene mg/kg 0.00099ND0.0050 EPA-8260B 1 n-Propylbenzene mg/kg 0.00071ND0.0050 EPA-8260B 1 Styrene mg/kg 0.00062ND0.0050 EPA-8260B 1 1,1,1,2-Tetrachloroethane mg/kg 0.00095ND0.0050 EPA-8260B 1 1,1,2,2-Tetrachloroethane mg/kg 0.00084ND0.0050 EPA-8260B 1 Tetrachloroethene mg/kg 0.00097ND0.0050 EPA-8260B 1 Toluene mg/kg 0.00069ND0.0050 EPA-8260B 1 1,2,3-Trichlorobenzene mg/kg 0.0015ND0.0050 EPA-8260B 1 1,2,4-Trichlorobenzene mg/kg 0.0014ND0.0050 EPA-8260B 1 1,1,1-Trichloroethane mg/kg 0.00067ND0.0050 EPA-8260B 1 1,1,2-Trichloroethane mg/kg 0.00094ND0.0050 EPA-8260B 1 Trichloroethene mg/kg 0.00074ND0.0050 EPA-8260B 12040 Trichlorofluoromethane mg/kg 0.0015ND0.0050 EPA-8260B 1 1,2,3-Trichloropropane mg/kg 0.0019ND0.0050 EPA-8260B 1 1,1,2-Trichloro-1,2,2-trifluoroethane mg/kg 0.0010ND0.0050 EPA-8260B 1 1,2,4-Trimethylbenzene mg/kg 0.00080ND0.0050 EPA-8260B 1 1,3,5-Trimethylbenzene mg/kg 0.00066ND0.0050 EPA-8260B 1 Vinyl chloride mg/kg 0.00059ND0.0050 EPA-8260B 1 Total Xylenes mg/kg 0.0025ND0.010 EPA-8260B 1 t-Amyl Methyl ether mg/kg 0.00050ND0.0050 EPA-8260B 1 t-Butyl alcohol mg/kg 0.012ND0.050 EPA-8260B 1 Diisopropyl ether mg/kg 0.00057ND0.0050 EPA-8260B 1 Ethanol mg/kg 0.16ND1.0 EPA-8260B 1 Ethyl t-butyl ether mg/kg 0.00050ND0.0050 EPA-8260B 1 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 9 of 43Report ID: 1001567227 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCCI, UST Bob Becker Reported:01/31/2025 12:21 BCL Sample ID:2501413-02 Client Sample Name: Constituent Result Units Method Limits Quals TTLC Lab Draft: Volatile Organic Analysis (EPA Method 8260B) DCN USTG-N-3, 1/28/2025 10:15:00AM, Carlos Enriquez-Villegas MDLPQL 1,2-Dichloroethane-d4 (Surrogate)%70 - 121 (LCL - UCL)113 EPA-8260B 1 Toluene-d8 (Surrogate)%81 - 117 (LCL - UCL)99.2 EPA-8260B 1 4-Bromofluorobenzene (Surrogate)%74 - 121 (LCL - UCL)101 EPA-8260B 1 QC Batch IDDilutionInstrumentAnalystDate/Time Run Prep DateMethodDCN Prep Method 01/29/25 05:00 01/29/25 13:46 EAB MS-V18 1 B204943EPA-8260B 1 EPA 5030 Soil MS DCN = Data Continuation Number The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 10 of 43Report ID: 1001567227 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCCI, UST Bob Becker Reported:01/31/2025 12:21 BCL Sample ID:2501413-02 Client Sample Name: Constituent Result Units Method Bias Quals MB Lab Draft: Purgeable Aromatics and Total Petroleum Hydrocarbons DCN USTG-N-3, 1/28/2025 10:15:00AM, Carlos Enriquez-Villegas MDLPQL Gasoline Range Organics (C4 - C12)mg/kg 0.42ND1.0 EPA-8015B 1ND a,a,a-Trifluorotoluene (FID Surrogate)%70 - 130 (LCL - UCL)125 EPA-8015B 1 QC Batch IDDilutionInstrumentAnalystDate/Time Run Prep DateMethodDCN Prep Method 01/29/25 10:27 01/29/25 13:00 TDH GC-V8 0.992 B204999EPA-8015B 1 EPA 5030 Soil GC DCN = Data Continuation Number The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 11 of 43Report ID: 1001567227 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCCI, UST Bob Becker Reported:01/31/2025 12:21 BCL Sample ID:2501413-02 Client Sample Name: Constituent Result Units Method Limits Quals TTLC Lab Draft: Total Concentrations (TTLC) DCN USTG-N-3, 1/28/2025 10:15:00AM, Carlos Enriquez-Villegas MDLPQL Antimony mg/kg 0.33ND5.0 EPA-6010B 1500 Arsenic mg/kg 0.406.6 1.0 EPA-6010B 1500 Barium mg/kg 0.18220.50 EPA-6010B 110000 Beryllium mg/kg J0.0470.072 0.50 EPA-6010B 175 Cadmium mg/kg 0.052ND0.50 EPA-6010B 1100 Chromium mg/kg 0.0505.5 0.50 EPA-6010B 12500 Cobalt mg/kg J0.0981.4 2.5 EPA-6010B 18000 Copper mg/kg 0.0503.6 1.0 EPA-6010B 12500 Lead mg/kg J0.410.72 2.5 EPA-6010B 11000 Mercury mg/kg J0.0160.034 0.16 EPA-7471A 220 Molybdenum mg/kg J0.0500.27 2.5 EPA-6010B 13500 Nickel mg/kg 0.152.6 0.50 EPA-6010B 12000 Selenium mg/kg 0.98ND1.0 EPA-6010B 1100 Silver mg/kg 0.067ND0.50 EPA-6010B 1500 Thallium mg/kg 0.64ND5.0 EPA-6010B 1700 Vanadium mg/kg 0.11140.50 EPA-6010B 12400 Zinc mg/kg 0.0879.4 2.5 EPA-6010B 15000 QC Batch IDDilutionInstrumentAnalystDate/Time Run Prep DateMethodDCN Prep Method 01/29/25 16:50 01/30/25 15:54 JRG ICP5 1 B205166EPA-6010B 1 EPA 3050B 01/30/25 08:30 01/30/25 12:34 TMT CETAC3 0.962 B205179EPA-7471A 2 EPA 7471A DCN = Data Continuation Number The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 12 of 43Report ID: 1001567227 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCCI, UST Bob Becker Reported:01/31/2025 12:21 BCL Sample ID:2501413-03 Client Sample Name: Constituent Result Units Method Limits Quals TTLC Lab Draft: Volatile Organic Analysis (EPA Method 8260B) DCN USTGP-S-3, 1/28/2025 10:18:00AM, Carlos Enriquez-Villegas MDLPQL Benzene mg/kg 0.00067ND0.0050 EPA-8260B 1 Bromobenzene mg/kg 0.00087ND0.0050 EPA-8260B 1 Bromochloromethane mg/kg 0.00081ND0.0050 EPA-8260B 1 Bromodichloromethane mg/kg 0.00078ND0.0050 EPA-8260B 1 Bromoform mg/kg 0.00070ND0.0050 EPA-8260B 1 Bromomethane mg/kg 0.0017ND0.0050 EPA-8260B 1 n-Butylbenzene mg/kg 0.00076ND0.0050 EPA-8260B 1 sec-Butylbenzene mg/kg 0.00071ND0.0050 EPA-8260B 1 tert-Butylbenzene mg/kg 0.00085ND0.0050 EPA-8260B 1 Carbon tetrachloride mg/kg 0.00078ND0.0050 EPA-8260B 1 Chlorobenzene mg/kg 0.00077ND0.0050 EPA-8260B 1 Chloroethane mg/kg 0.0011ND0.0050 EPA-8260B 1 Chloroform mg/kg 0.00090ND0.0050 EPA-8260B 1 Chloromethane mg/kg 0.0011ND0.0050 EPA-8260B 1 2-Chlorotoluene mg/kg 0.00087ND0.0050 EPA-8260B 1 4-Chlorotoluene mg/kg 0.00070ND0.0050 EPA-8260B 1 Dibromochloromethane mg/kg 0.00080ND0.0050 EPA-8260B 1 1,2-Dibromo-3-chloropropane mg/kg 0.00096ND0.0050 EPA-8260B 1 1,2-Dibromoethane mg/kg 0.00082ND0.0050 EPA-8260B 1 Dibromomethane mg/kg 0.0014ND0.0050 EPA-8260B 1 1,2-Dichlorobenzene mg/kg 0.00079ND0.0050 EPA-8260B 1 1,4-Dichlorobenzene mg/kg 0.00073ND0.0050 EPA-8260B 1 Dichlorodifluoromethane mg/kg 0.00079ND0.0050 EPA-8260B 1 1,1-Dichloroethane mg/kg 0.00064ND0.0050 EPA-8260B 1 1,2-Dichloroethane mg/kg 0.00073ND0.0050 EPA-8260B 1 1,1-Dichloroethene mg/kg 0.0011ND0.0050 EPA-8260B 1 cis-1,2-Dichloroethene mg/kg 0.00054ND0.0050 EPA-8260B 1 trans-1,2-Dichloroethene mg/kg 0.0037ND0.0050 EPA-8260B 1 Total 1,2-Dichloroethene mg/kg 0.0043ND0.010 EPA-8260B 1 1,2-Dichloropropane mg/kg 0.00080ND0.0050 EPA-8260B 1 1,3-Dichloropropane mg/kg 0.00067ND0.0050 EPA-8260B 1 2,2-Dichloropropane mg/kg 0.00067ND0.0050 EPA-8260B 1 1,1-Dichloropropene mg/kg 0.00067ND0.0050 EPA-8260B 1 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 13 of 43Report ID: 1001567227 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCCI, UST Bob Becker Reported:01/31/2025 12:21 BCL Sample ID:2501413-03 Client Sample Name: Constituent Result Units Method Limits Quals TTLC Lab Draft: Volatile Organic Analysis (EPA Method 8260B) DCN USTGP-S-3, 1/28/2025 10:18:00AM, Carlos Enriquez-Villegas MDLPQL cis-1,3-Dichloropropene mg/kg 0.00058ND0.0050 EPA-8260B 1 trans-1,3-Dichloropropene mg/kg 0.00066ND0.0050 EPA-8260B 1 Total 1,3-Dichloropropene mg/kg 0.0013ND0.010 EPA-8260B 1 Ethylbenzene mg/kg 0.00069ND0.0050 EPA-8260B 1 Hexachlorobutadiene mg/kg 0.00067ND0.0050 EPA-8260B 1 Isopropylbenzene mg/kg 0.00080ND0.0050 EPA-8260B 1 p-Isopropyltoluene mg/kg 0.00059ND0.0050 EPA-8260B 1 Methylene chloride mg/kg 0.0011ND0.010 EPA-8260B 1 Methyl t-butyl ether mg/kg 0.00056ND0.0050 EPA-8260B 1 Naphthalene mg/kg 0.00099ND0.0050 EPA-8260B 1 n-Propylbenzene mg/kg 0.00071ND0.0050 EPA-8260B 1 Styrene mg/kg 0.00062ND0.0050 EPA-8260B 1 1,1,1,2-Tetrachloroethane mg/kg 0.00095ND0.0050 EPA-8260B 1 1,1,2,2-Tetrachloroethane mg/kg 0.00084ND0.0050 EPA-8260B 1 Tetrachloroethene mg/kg 0.00097ND0.0050 EPA-8260B 1 Toluene mg/kg 0.00069ND0.0050 EPA-8260B 1 1,2,3-Trichlorobenzene mg/kg 0.0015ND0.0050 EPA-8260B 1 1,2,4-Trichlorobenzene mg/kg 0.0014ND0.0050 EPA-8260B 1 1,1,1-Trichloroethane mg/kg 0.00067ND0.0050 EPA-8260B 1 1,1,2-Trichloroethane mg/kg 0.00094ND0.0050 EPA-8260B 1 Trichloroethene mg/kg 0.00074ND0.0050 EPA-8260B 12040 Trichlorofluoromethane mg/kg 0.0015ND0.0050 EPA-8260B 1 1,2,3-Trichloropropane mg/kg 0.0019ND0.0050 EPA-8260B 1 1,1,2-Trichloro-1,2,2-trifluoroethane mg/kg 0.0010ND0.0050 EPA-8260B 1 1,2,4-Trimethylbenzene mg/kg 0.00080ND0.0050 EPA-8260B 1 1,3,5-Trimethylbenzene mg/kg 0.00066ND0.0050 EPA-8260B 1 Vinyl chloride mg/kg 0.00059ND0.0050 EPA-8260B 1 Total Xylenes mg/kg 0.0025ND0.010 EPA-8260B 1 t-Amyl Methyl ether mg/kg 0.00050ND0.0050 EPA-8260B 1 t-Butyl alcohol mg/kg 0.012ND0.050 EPA-8260B 1 Diisopropyl ether mg/kg 0.00057ND0.0050 EPA-8260B 1 Ethanol mg/kg 0.16ND1.0 EPA-8260B 1 Ethyl t-butyl ether mg/kg 0.00050ND0.0050 EPA-8260B 1 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 14 of 43Report ID: 1001567227 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCCI, UST Bob Becker Reported:01/31/2025 12:21 BCL Sample ID:2501413-03 Client Sample Name: Constituent Result Units Method Limits Quals TTLC Lab Draft: Volatile Organic Analysis (EPA Method 8260B) DCN USTGP-S-3, 1/28/2025 10:18:00AM, Carlos Enriquez-Villegas MDLPQL 1,2-Dichloroethane-d4 (Surrogate)%70 - 121 (LCL - UCL)111 EPA-8260B 1 Toluene-d8 (Surrogate)%81 - 117 (LCL - UCL)99.5 EPA-8260B 1 4-Bromofluorobenzene (Surrogate)%74 - 121 (LCL - UCL)104 EPA-8260B 1 QC Batch IDDilutionInstrumentAnalystDate/Time Run Prep DateMethodDCN Prep Method 01/29/25 05:00 01/29/25 14:11 EAB MS-V18 1 B204943EPA-8260B 1 EPA 5030 Soil MS DCN = Data Continuation Number The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 15 of 43Report ID: 1001567227 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCCI, UST Bob Becker Reported:01/31/2025 12:21 BCL Sample ID:2501413-03 Client Sample Name: Constituent Result Units Method Bias Quals MB Lab Draft: Purgeable Aromatics and Total Petroleum Hydrocarbons DCN USTGP-S-3, 1/28/2025 10:18:00AM, Carlos Enriquez-Villegas MDLPQL Gasoline Range Organics (C4 - C12)mg/kg 0.42ND1.0 EPA-8015B 1ND a,a,a-Trifluorotoluene (FID Surrogate)%70 - 130 (LCL - UCL)122 EPA-8015B 1 QC Batch IDDilutionInstrumentAnalystDate/Time Run Prep DateMethodDCN Prep Method 01/29/25 10:27 01/29/25 13:24 TDH GC-V8 0.988 B204999EPA-8015B 1 EPA 5030 Soil GC DCN = Data Continuation Number The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 16 of 43Report ID: 1001567227 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCCI, UST Bob Becker Reported:01/31/2025 12:21 BCL Sample ID:2501413-03 Client Sample Name: Constituent Result Units Method Limits Quals TTLC Lab Draft: Total Concentrations (TTLC) DCN USTGP-S-3, 1/28/2025 10:18:00AM, Carlos Enriquez-Villegas MDLPQL Antimony mg/kg 0.33ND5.0 EPA-6010B 1500 Arsenic mg/kg 0.407.2 1.0 EPA-6010B 1500 Barium mg/kg 0.18680.50 EPA-6010B 110000 Beryllium mg/kg J0.0470.094 0.50 EPA-6010B 175 Cadmium mg/kg J0.0520.075 0.50 EPA-6010B 1100 Chromium mg/kg 0.0503.7 0.50 EPA-6010B 12500 Cobalt mg/kg J0.0982.4 2.5 EPA-6010B 18000 Copper mg/kg 0.0503.1 1.0 EPA-6010B 12500 Lead mg/kg J0.411.3 2.5 EPA-6010B 11000 Mercury mg/kg J0.0160.087 0.16 EPA-7471A 220 Molybdenum mg/kg J0.0500.46 2.5 EPA-6010B 13500 Nickel mg/kg 0.153.0 0.50 EPA-6010B 12000 Selenium mg/kg 0.98ND1.0 EPA-6010B 1100 Silver mg/kg 0.067ND0.50 EPA-6010B 1500 Thallium mg/kg 0.64ND5.0 EPA-6010B 1700 Vanadium mg/kg 0.11140.50 EPA-6010B 12400 Zinc mg/kg 0.087142.5 EPA-6010B 15000 QC Batch IDDilutionInstrumentAnalystDate/Time Run Prep DateMethodDCN Prep Method 01/29/25 16:50 01/30/25 15:34 JRG ICP5 1 B205166EPA-6010B 1 EPA 3050B 01/30/25 08:30 01/30/25 12:35 TMT CETAC3 0.992 B205179EPA-7471A 2 EPA 7471A DCN = Data Continuation Number The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 17 of 43Report ID: 1001567227 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCCI, UST Bob Becker Reported:01/31/2025 12:21 BCL Sample ID:2501413-04 Client Sample Name: Constituent Result Units Method Limits Quals TTLC Lab Draft: Volatile Organic Analysis (EPA Method 8260B) DCN STPW- Comp, 1/28/2025 10:45:00AM, Carlos Enriquez-Villegas MDLPQL Benzene mg/kg 0.00067ND0.0050 EPA-8260B 1 Bromobenzene mg/kg 0.00087ND0.0050 EPA-8260B 1 Bromochloromethane mg/kg 0.00081ND0.0050 EPA-8260B 1 Bromodichloromethane mg/kg 0.00078ND0.0050 EPA-8260B 1 Bromoform mg/kg 0.00070ND0.0050 EPA-8260B 1 Bromomethane mg/kg 0.0017ND0.0050 EPA-8260B 1 n-Butylbenzene mg/kg 0.00076ND0.0050 EPA-8260B 1 sec-Butylbenzene mg/kg 0.00071ND0.0050 EPA-8260B 1 tert-Butylbenzene mg/kg 0.00085ND0.0050 EPA-8260B 1 Carbon tetrachloride mg/kg 0.00078ND0.0050 EPA-8260B 1 Chlorobenzene mg/kg 0.00077ND0.0050 EPA-8260B 1 Chloroethane mg/kg 0.0011ND0.0050 EPA-8260B 1 Chloroform mg/kg 0.00090ND0.0050 EPA-8260B 1 Chloromethane mg/kg 0.0011ND0.0050 EPA-8260B 1 2-Chlorotoluene mg/kg 0.00087ND0.0050 EPA-8260B 1 4-Chlorotoluene mg/kg 0.00070ND0.0050 EPA-8260B 1 Dibromochloromethane mg/kg 0.00080ND0.0050 EPA-8260B 1 1,2-Dibromo-3-chloropropane mg/kg 0.00096ND0.0050 EPA-8260B 1 1,2-Dibromoethane mg/kg 0.00082ND0.0050 EPA-8260B 1 Dibromomethane mg/kg 0.0014ND0.0050 EPA-8260B 1 1,2-Dichlorobenzene mg/kg 0.00079ND0.0050 EPA-8260B 1 1,4-Dichlorobenzene mg/kg 0.00073ND0.0050 EPA-8260B 1 Dichlorodifluoromethane mg/kg 0.00079ND0.0050 EPA-8260B 1 1,1-Dichloroethane mg/kg 0.00064ND0.0050 EPA-8260B 1 1,2-Dichloroethane mg/kg 0.00073ND0.0050 EPA-8260B 1 1,1-Dichloroethene mg/kg 0.0011ND0.0050 EPA-8260B 1 cis-1,2-Dichloroethene mg/kg 0.00054ND0.0050 EPA-8260B 1 trans-1,2-Dichloroethene mg/kg 0.0037ND0.0050 EPA-8260B 1 Total 1,2-Dichloroethene mg/kg 0.0043ND0.010 EPA-8260B 1 1,2-Dichloropropane mg/kg 0.00080ND0.0050 EPA-8260B 1 1,3-Dichloropropane mg/kg 0.00067ND0.0050 EPA-8260B 1 2,2-Dichloropropane mg/kg 0.00067ND0.0050 EPA-8260B 1 1,1-Dichloropropene mg/kg 0.00067ND0.0050 EPA-8260B 1 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 18 of 43Report ID: 1001567227 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCCI, UST Bob Becker Reported:01/31/2025 12:21 BCL Sample ID:2501413-04 Client Sample Name: Constituent Result Units Method Limits Quals TTLC Lab Draft: Volatile Organic Analysis (EPA Method 8260B) DCN STPW- Comp, 1/28/2025 10:45:00AM, Carlos Enriquez-Villegas MDLPQL cis-1,3-Dichloropropene mg/kg 0.00058ND0.0050 EPA-8260B 1 trans-1,3-Dichloropropene mg/kg 0.00066ND0.0050 EPA-8260B 1 Total 1,3-Dichloropropene mg/kg 0.0013ND0.010 EPA-8260B 1 Ethylbenzene mg/kg 0.00069ND0.0050 EPA-8260B 1 Hexachlorobutadiene mg/kg 0.00067ND0.0050 EPA-8260B 1 Isopropylbenzene mg/kg 0.00080ND0.0050 EPA-8260B 1 p-Isopropyltoluene mg/kg 0.00059ND0.0050 EPA-8260B 1 Methylene chloride mg/kg 0.0011ND0.010 EPA-8260B 1 Methyl t-butyl ether mg/kg 0.00056ND0.0050 EPA-8260B 1 Naphthalene mg/kg 0.00099ND0.0050 EPA-8260B 1 n-Propylbenzene mg/kg 0.00071ND0.0050 EPA-8260B 1 Styrene mg/kg 0.00062ND0.0050 EPA-8260B 1 1,1,1,2-Tetrachloroethane mg/kg 0.00095ND0.0050 EPA-8260B 1 1,1,2,2-Tetrachloroethane mg/kg 0.00084ND0.0050 EPA-8260B 1 Tetrachloroethene mg/kg 0.00097ND0.0050 EPA-8260B 1 Toluene mg/kg 0.00069ND0.0050 EPA-8260B 1 1,2,3-Trichlorobenzene mg/kg 0.0015ND0.0050 EPA-8260B 1 1,2,4-Trichlorobenzene mg/kg 0.0014ND0.0050 EPA-8260B 1 1,1,1-Trichloroethane mg/kg 0.00067ND0.0050 EPA-8260B 1 1,1,2-Trichloroethane mg/kg 0.00094ND0.0050 EPA-8260B 1 Trichloroethene mg/kg 0.00074ND0.0050 EPA-8260B 12040 Trichlorofluoromethane mg/kg 0.0015ND0.0050 EPA-8260B 1 1,2,3-Trichloropropane mg/kg 0.0019ND0.0050 EPA-8260B 1 1,1,2-Trichloro-1,2,2-trifluoroethane mg/kg 0.0010ND0.0050 EPA-8260B 1 1,2,4-Trimethylbenzene mg/kg 0.00080ND0.0050 EPA-8260B 1 1,3,5-Trimethylbenzene mg/kg 0.00066ND0.0050 EPA-8260B 1 Vinyl chloride mg/kg 0.00059ND0.0050 EPA-8260B 1 Total Xylenes mg/kg 0.0025ND0.010 EPA-8260B 1 t-Amyl Methyl ether mg/kg 0.00050ND0.0050 EPA-8260B 1 t-Butyl alcohol mg/kg 0.012ND0.050 EPA-8260B 1 Diisopropyl ether mg/kg 0.00057ND0.0050 EPA-8260B 1 Ethanol mg/kg 0.16ND1.0 EPA-8260B 1 Ethyl t-butyl ether mg/kg 0.00050ND0.0050 EPA-8260B 1 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 19 of 43Report ID: 1001567227 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCCI, UST Bob Becker Reported:01/31/2025 12:21 BCL Sample ID:2501413-04 Client Sample Name: Constituent Result Units Method Limits Quals TTLC Lab Draft: Volatile Organic Analysis (EPA Method 8260B) DCN STPW- Comp, 1/28/2025 10:45:00AM, Carlos Enriquez-Villegas MDLPQL 1,2-Dichloroethane-d4 (Surrogate)%70 - 121 (LCL - UCL)112 EPA-8260B 1 Toluene-d8 (Surrogate)%81 - 117 (LCL - UCL)101 EPA-8260B 1 4-Bromofluorobenzene (Surrogate)%74 - 121 (LCL - UCL)103 EPA-8260B 1 QC Batch IDDilutionInstrumentAnalystDate/Time Run Prep DateMethodDCN Prep Method 01/29/25 05:00 01/29/25 10:08 EAB MS-V18 1 B204943EPA-8260B 1 EPA 5030 Soil MS DCN = Data Continuation Number The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 20 of 43Report ID: 1001567227 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCCI, UST Bob Becker Reported:01/31/2025 12:21 BCL Sample ID:2501413-04 Client Sample Name: Constituent Result Units Method Bias Quals MB Lab Draft: Purgeable Aromatics and Total Petroleum Hydrocarbons DCN STPW- Comp, 1/28/2025 10:45:00AM, Carlos Enriquez-Villegas MDLPQL Gasoline Range Organics (C4 - C12)mg/kg 0.42ND1.0 EPA-8015B 1ND a,a,a-Trifluorotoluene (FID Surrogate)%70 - 130 (LCL - UCL)125 EPA-8015B 1 QC Batch IDDilutionInstrumentAnalystDate/Time Run Prep DateMethodDCN Prep Method 01/29/25 10:27 01/29/25 13:48 TDH GC-V8 1.004 B204999EPA-8015B 1 EPA 5030 Soil GC DCN = Data Continuation Number The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 21 of 43Report ID: 1001567227 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCCI, UST Bob Becker Reported:01/31/2025 12:21 BCL Sample ID:2501413-04 Client Sample Name: Constituent Result Units Method Limits Quals TTLC Lab Draft: Total Concentrations (TTLC) DCN STPW- Comp, 1/28/2025 10:45:00AM, Carlos Enriquez-Villegas MDLPQL Antimony mg/kg 0.33ND5.0 EPA-6010B 1500 Arsenic mg/kg 0.403.9 1.0 EPA-6010B 1500 Barium mg/kg 0.181400.50 EPA-6010B 110000 Beryllium mg/kg J0.0470.049 0.50 EPA-6010B 175 Cadmium mg/kg J0.0520.097 0.50 EPA-6010B 1100 Chromium mg/kg 0.050160.50 EPA-6010B 12500 Cobalt mg/kg 0.0984.7 2.5 EPA-6010B 18000 Copper mg/kg 0.0507.6 1.0 EPA-6010B 12500 Lead mg/kg J0.412.1 2.5 EPA-6010B 11000 Molybdenum mg/kg J0.0500.30 2.5 EPA-6010B 13500 Nickel mg/kg 0.157.1 0.50 EPA-6010B 12000 Selenium mg/kg 0.98ND1.0 EPA-6010B 1100 Silver mg/kg 0.067ND0.50 EPA-6010B 1500 Thallium mg/kg 0.64ND5.0 EPA-6010B 1700 Vanadium mg/kg 0.11270.50 EPA-6010B 12400 Zinc mg/kg 0.087302.5 EPA-6010B 15000 QC Batch IDDilutionInstrumentAnalystDate/Time Run Prep DateMethodDCN Prep Method 01/29/25 16:50 01/30/25 15:56 JRG ICP5 0.926 B205166EPA-6010B 1 EPA 3050B DCN = Data Continuation Number The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 22 of 43Report ID: 1001567227 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCCI, UST Bob Becker Reported:01/31/2025 12:21 BCL Sample ID:2501413-05 Client Sample Name: Constituent Result Units Method Limits Quals TTLC Lab Draft: Volatile Organic Analysis (EPA Method 8260B) DCN STPE- Comp, 1/28/2025 10:50:00AM, Carlos Enriquez-Villegas MDLPQL Benzene mg/kg 0.00067ND0.0050 EPA-8260B 1 Bromobenzene mg/kg 0.00087ND0.0050 EPA-8260B 1 Bromochloromethane mg/kg 0.00081ND0.0050 EPA-8260B 1 Bromodichloromethane mg/kg 0.00078ND0.0050 EPA-8260B 1 Bromoform mg/kg 0.00070ND0.0050 EPA-8260B 1 Bromomethane mg/kg 0.0017ND0.0050 EPA-8260B 1 n-Butylbenzene mg/kg 0.00076ND0.0050 EPA-8260B 1 sec-Butylbenzene mg/kg 0.00071ND0.0050 EPA-8260B 1 tert-Butylbenzene mg/kg 0.00085ND0.0050 EPA-8260B 1 Carbon tetrachloride mg/kg 0.00078ND0.0050 EPA-8260B 1 Chlorobenzene mg/kg 0.00077ND0.0050 EPA-8260B 1 Chloroethane mg/kg 0.0011ND0.0050 EPA-8260B 1 Chloroform mg/kg 0.00090ND0.0050 EPA-8260B 1 Chloromethane mg/kg 0.0011ND0.0050 EPA-8260B 1 2-Chlorotoluene mg/kg 0.00087ND0.0050 EPA-8260B 1 4-Chlorotoluene mg/kg 0.00070ND0.0050 EPA-8260B 1 Dibromochloromethane mg/kg 0.00080ND0.0050 EPA-8260B 1 1,2-Dibromo-3-chloropropane mg/kg 0.00096ND0.0050 EPA-8260B 1 1,2-Dibromoethane mg/kg 0.00082ND0.0050 EPA-8260B 1 Dibromomethane mg/kg 0.0014ND0.0050 EPA-8260B 1 1,2-Dichlorobenzene mg/kg 0.00079ND0.0050 EPA-8260B 1 1,4-Dichlorobenzene mg/kg 0.00073ND0.0050 EPA-8260B 1 Dichlorodifluoromethane mg/kg 0.00079ND0.0050 EPA-8260B 1 1,1-Dichloroethane mg/kg 0.00064ND0.0050 EPA-8260B 1 1,2-Dichloroethane mg/kg 0.00073ND0.0050 EPA-8260B 1 1,1-Dichloroethene mg/kg 0.0011ND0.0050 EPA-8260B 1 cis-1,2-Dichloroethene mg/kg 0.00054ND0.0050 EPA-8260B 1 trans-1,2-Dichloroethene mg/kg 0.0037ND0.0050 EPA-8260B 1 Total 1,2-Dichloroethene mg/kg 0.0043ND0.010 EPA-8260B 1 1,2-Dichloropropane mg/kg 0.00080ND0.0050 EPA-8260B 1 1,3-Dichloropropane mg/kg 0.00067ND0.0050 EPA-8260B 1 2,2-Dichloropropane mg/kg 0.00067ND0.0050 EPA-8260B 1 1,1-Dichloropropene mg/kg 0.00067ND0.0050 EPA-8260B 1 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 23 of 43Report ID: 1001567227 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCCI, UST Bob Becker Reported:01/31/2025 12:21 BCL Sample ID:2501413-05 Client Sample Name: Constituent Result Units Method Limits Quals TTLC Lab Draft: Volatile Organic Analysis (EPA Method 8260B) DCN STPE- Comp, 1/28/2025 10:50:00AM, Carlos Enriquez-Villegas MDLPQL cis-1,3-Dichloropropene mg/kg 0.00058ND0.0050 EPA-8260B 1 trans-1,3-Dichloropropene mg/kg 0.00066ND0.0050 EPA-8260B 1 Total 1,3-Dichloropropene mg/kg 0.0013ND0.010 EPA-8260B 1 Ethylbenzene mg/kg 0.00069ND0.0050 EPA-8260B 1 Hexachlorobutadiene mg/kg 0.00067ND0.0050 EPA-8260B 1 Isopropylbenzene mg/kg 0.00080ND0.0050 EPA-8260B 1 p-Isopropyltoluene mg/kg 0.00059ND0.0050 EPA-8260B 1 Methylene chloride mg/kg 0.0011ND0.010 EPA-8260B 1 Methyl t-butyl ether mg/kg 0.00056ND0.0050 EPA-8260B 1 Naphthalene mg/kg 0.00099ND0.0050 EPA-8260B 1 n-Propylbenzene mg/kg 0.00071ND0.0050 EPA-8260B 1 Styrene mg/kg 0.00062ND0.0050 EPA-8260B 1 1,1,1,2-Tetrachloroethane mg/kg 0.00095ND0.0050 EPA-8260B 1 1,1,2,2-Tetrachloroethane mg/kg 0.00084ND0.0050 EPA-8260B 1 Tetrachloroethene mg/kg 0.00097ND0.0050 EPA-8260B 1 Toluene mg/kg J0.000690.0011 0.0050 EPA-8260B 1 1,2,3-Trichlorobenzene mg/kg 0.0015ND0.0050 EPA-8260B 1 1,2,4-Trichlorobenzene mg/kg 0.0014ND0.0050 EPA-8260B 1 1,1,1-Trichloroethane mg/kg 0.00067ND0.0050 EPA-8260B 1 1,1,2-Trichloroethane mg/kg 0.00094ND0.0050 EPA-8260B 1 Trichloroethene mg/kg 0.00074ND0.0050 EPA-8260B 12040 Trichlorofluoromethane mg/kg 0.0015ND0.0050 EPA-8260B 1 1,2,3-Trichloropropane mg/kg 0.0019ND0.0050 EPA-8260B 1 1,1,2-Trichloro-1,2,2-trifluoroethane mg/kg 0.0010ND0.0050 EPA-8260B 1 1,2,4-Trimethylbenzene mg/kg 0.00080ND0.0050 EPA-8260B 1 1,3,5-Trimethylbenzene mg/kg 0.00066ND0.0050 EPA-8260B 1 Vinyl chloride mg/kg 0.00059ND0.0050 EPA-8260B 1 Total Xylenes mg/kg 0.0025ND0.010 EPA-8260B 1 t-Amyl Methyl ether mg/kg 0.00050ND0.0050 EPA-8260B 1 t-Butyl alcohol mg/kg 0.012ND0.050 EPA-8260B 1 Diisopropyl ether mg/kg 0.00057ND0.0050 EPA-8260B 1 Ethanol mg/kg 0.16ND1.0 EPA-8260B 1 Ethyl t-butyl ether mg/kg 0.00050ND0.0050 EPA-8260B 1 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 24 of 43Report ID: 1001567227 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCCI, UST Bob Becker Reported:01/31/2025 12:21 BCL Sample ID:2501413-05 Client Sample Name: Constituent Result Units Method Limits Quals TTLC Lab Draft: Volatile Organic Analysis (EPA Method 8260B) DCN STPE- Comp, 1/28/2025 10:50:00AM, Carlos Enriquez-Villegas MDLPQL 1,2-Dichloroethane-d4 (Surrogate)%70 - 121 (LCL - UCL)114 EPA-8260B 1 Toluene-d8 (Surrogate)%81 - 117 (LCL - UCL)101 EPA-8260B 1 4-Bromofluorobenzene (Surrogate)%74 - 121 (LCL - UCL)104 EPA-8260B 1 QC Batch IDDilutionInstrumentAnalystDate/Time Run Prep DateMethodDCN Prep Method 01/29/25 05:00 01/29/25 10:32 EAB MS-V18 1 B204943EPA-8260B 1 EPA 5030 Soil MS DCN = Data Continuation Number The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 25 of 43Report ID: 1001567227 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCCI, UST Bob Becker Reported:01/31/2025 12:21 BCL Sample ID:2501413-05 Client Sample Name: Constituent Result Units Method Bias Quals MB Lab Draft: Purgeable Aromatics and Total Petroleum Hydrocarbons DCN STPE- Comp, 1/28/2025 10:50:00AM, Carlos Enriquez-Villegas MDLPQL Gasoline Range Organics (C4 - C12)mg/kg 0.42ND1.0 EPA-8015B 1ND a,a,a-Trifluorotoluene (FID Surrogate)%70 - 130 (LCL - UCL)120 EPA-8015B 1 QC Batch IDDilutionInstrumentAnalystDate/Time Run Prep DateMethodDCN Prep Method 01/29/25 10:27 01/29/25 14:13 TDH GC-V8 1.006 B204999EPA-8015B 1 EPA 5030 Soil GC DCN = Data Continuation Number The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 26 of 43Report ID: 1001567227 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCCI, UST Bob Becker Reported:01/31/2025 12:21 BCL Sample ID:2501413-05 Client Sample Name: Constituent Result Units Method Limits Quals TTLC Lab Draft: Total Concentrations (TTLC) DCN STPE- Comp, 1/28/2025 10:50:00AM, Carlos Enriquez-Villegas MDLPQL Antimony mg/kg 0.30ND4.5 EPA-6010B 1500 Arsenic mg/kg 0.362.4 0.91 EPA-6010B 1500 Barium mg/kg 0.161900.45 EPA-6010B 110000 Beryllium mg/kg J0.0430.065 0.45 EPA-6010B 175 Cadmium mg/kg 0.047ND0.45 EPA-6010B 1100 Chromium mg/kg 0.045130.45 EPA-6010B 12500 Cobalt mg/kg 0.0895.9 2.3 EPA-6010B 18000 Copper mg/kg 0.045110.91 EPA-6010B 12500 Lead mg/kg 0.373.8 2.3 EPA-6010B 11000 Molybdenum mg/kg J0.0450.15 2.3 EPA-6010B 13500 Nickel mg/kg 0.148.1 0.45 EPA-6010B 12000 Selenium mg/kg 0.89ND0.91 EPA-6010B 1100 Silver mg/kg 0.061ND0.45 EPA-6010B 1500 Thallium mg/kg 0.58ND4.5 EPA-6010B 1700 Vanadium mg/kg 0.10330.45 EPA-6010B 12400 Zinc mg/kg 0.079382.3 EPA-6010B 15000 QC Batch IDDilutionInstrumentAnalystDate/Time Run Prep DateMethodDCN Prep Method 01/29/25 16:50 01/30/25 15:58 JRG ICP5 0.909 B205166EPA-6010B 1 EPA 3050B DCN = Data Continuation Number The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 27 of 43Report ID: 1001567227 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCCI, UST Bob Becker Reported:01/31/2025 12:21 Quality Control Report - Method Blank Analysis Constituent QC Sample ID MB Result Units Lab Quals Draft: Volatile Organic Analysis (EPA Method 8260B) Run #MDLPQL QC Batch ID: B204943 Benzene B204943-BLK1 0.0050NDmg/kg 0.00067 1 Bromobenzene B204943-BLK1 0.0050NDmg/kg 0.00087 1 Bromochloromethane B204943-BLK1 0.0050NDmg/kg 0.00081 1 Bromodichloromethane B204943-BLK1 0.0050NDmg/kg 0.00078 1 Bromoform B204943-BLK1 0.0050NDmg/kg 0.00070 1 Bromomethane B204943-BLK1 0.0050NDmg/kg 0.0017 1 n-Butylbenzene B204943-BLK1 0.0050NDmg/kg 0.00076 1 sec-Butylbenzene B204943-BLK1 0.0050NDmg/kg 0.00071 1 tert-Butylbenzene B204943-BLK1 0.0050NDmg/kg 0.00085 1 Carbon tetrachloride B204943-BLK1 0.0050NDmg/kg 0.00078 1 Chlorobenzene B204943-BLK1 0.0050NDmg/kg 0.00077 1 Chloroethane B204943-BLK1 0.0050NDmg/kg 0.0011 1 Chloroform B204943-BLK1 0.0050NDmg/kg 0.00090 1 Chloromethane B204943-BLK1 0.0050NDmg/kg 0.0011 1 2-Chlorotoluene B204943-BLK1 0.0050NDmg/kg 0.00087 1 4-Chlorotoluene B204943-BLK1 0.0050NDmg/kg 0.00070 1 Dibromochloromethane B204943-BLK1 0.0050NDmg/kg 0.00080 1 1,2-Dibromo-3-chloropropane B204943-BLK1 0.0050NDmg/kg 0.00096 1 1,2-Dibromoethane B204943-BLK1 0.0050NDmg/kg 0.00082 1 Dibromomethane B204943-BLK1 0.0050NDmg/kg 0.0014 1 1,2-Dichlorobenzene B204943-BLK1 0.0050NDmg/kg 0.00079 1 1,4-Dichlorobenzene B204943-BLK1 0.0050NDmg/kg 0.00073 1 Dichlorodifluoromethane B204943-BLK1 0.0050NDmg/kg 0.00079 1 1,1-Dichloroethane B204943-BLK1 0.0050NDmg/kg 0.00064 1 1,2-Dichloroethane B204943-BLK1 0.0050NDmg/kg 0.00073 1 1,1-Dichloroethene B204943-BLK1 0.0050NDmg/kg 0.0011 1 cis-1,2-Dichloroethene B204943-BLK1 0.0050NDmg/kg 0.00054 1 trans-1,2-Dichloroethene B204943-BLK1 0.0050NDmg/kg 0.0037 1 Total 1,2-Dichloroethene B204943-BLK1 0.010NDmg/kg 0.0043 1 1,2-Dichloropropane B204943-BLK1 0.0050NDmg/kg 0.00080 1 1,3-Dichloropropane B204943-BLK1 0.0050NDmg/kg 0.00067 1 2,2-Dichloropropane B204943-BLK1 0.0050NDmg/kg 0.00067 1 1,1-Dichloropropene B204943-BLK1 0.0050NDmg/kg 0.00067 1 cis-1,3-Dichloropropene B204943-BLK1 0.0050NDmg/kg 0.00058 1 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 28 of 43Report ID: 1001567227 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCCI, UST Bob Becker Reported:01/31/2025 12:21 Quality Control Report - Method Blank Analysis Constituent QC Sample ID MB Result Units Lab Quals Draft: Volatile Organic Analysis (EPA Method 8260B) Run #MDLPQL QC Batch ID: B204943 trans-1,3-Dichloropropene B204943-BLK1 0.0050NDmg/kg 0.00066 1 Total 1,3-Dichloropropene B204943-BLK1 0.010NDmg/kg 0.0013 1 Ethylbenzene B204943-BLK1 0.0050NDmg/kg 0.00069 1 Hexachlorobutadiene B204943-BLK1 0.0050NDmg/kg 0.00067 1 Isopropylbenzene B204943-BLK1 0.0050NDmg/kg 0.00080 1 p-Isopropyltoluene B204943-BLK1 0.0050NDmg/kg 0.00059 1 Methylene chloride B204943-BLK1 0.010NDmg/kg 0.0011 1 Methyl t-butyl ether B204943-BLK1 0.0050NDmg/kg 0.00056 1 Naphthalene B204943-BLK1 0.0050NDmg/kg 0.00099 1 n-Propylbenzene B204943-BLK1 0.0050NDmg/kg 0.00071 1 Styrene B204943-BLK1 0.0050NDmg/kg 0.00062 1 1,1,1,2-Tetrachloroethane B204943-BLK1 0.0050NDmg/kg 0.00095 1 1,1,2,2-Tetrachloroethane B204943-BLK1 0.0050NDmg/kg 0.00084 1 Tetrachloroethene B204943-BLK1 0.0050NDmg/kg 0.00097 1 Toluene B204943-BLK1 0.0050NDmg/kg 0.00069 1 1,2,3-Trichlorobenzene B204943-BLK1 0.0050NDmg/kg 0.0015 1 1,2,4-Trichlorobenzene B204943-BLK1 0.0050NDmg/kg 0.0014 1 1,1,1-Trichloroethane B204943-BLK1 0.0050NDmg/kg 0.00067 1 1,1,2-Trichloroethane B204943-BLK1 0.0050NDmg/kg 0.00094 1 Trichloroethene B204943-BLK1 0.0050NDmg/kg 0.00074 1 Trichlorofluoromethane B204943-BLK1 0.0050NDmg/kg 0.0015 1 1,2,3-Trichloropropane B204943-BLK1 0.0050NDmg/kg 0.0019 1 1,1,2-Trichloro-1,2,2-trifluoroethane B204943-BLK1 0.0050NDmg/kg 0.0010 1 1,2,4-Trimethylbenzene B204943-BLK1 0.0050NDmg/kg 0.00080 1 1,3,5-Trimethylbenzene B204943-BLK1 0.0050NDmg/kg 0.00066 1 Vinyl chloride B204943-BLK1 0.0050NDmg/kg 0.00059 1 Total Xylenes B204943-BLK1 0.010NDmg/kg 0.0025 1 t-Amyl Methyl ether B204943-BLK1 0.0050NDmg/kg 0.00050 1 t-Butyl alcohol B204943-BLK1 0.050NDmg/kg 0.012 1 Diisopropyl ether B204943-BLK1 0.0050NDmg/kg 0.00057 1 Ethanol B204943-BLK1 1.0NDmg/kg 0.16 1 Ethyl t-butyl ether B204943-BLK1 0.0050NDmg/kg 0.00050 1 1,2-Dichloroethane-d4 (Surrogate)B204943-BLK1 114 %70 - 121 (LCL - UCL) 1 Toluene-d8 (Surrogate)B204943-BLK1 99.0 %81 - 117 (LCL - UCL) 1 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 29 of 43Report ID: 1001567227 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCCI, UST Bob Becker Reported:01/31/2025 12:21 Quality Control Report - Method Blank Analysis Constituent QC Sample ID MB Result Units Lab Quals Draft: Volatile Organic Analysis (EPA Method 8260B) Run #MDLPQL QC Batch ID: B204943 4-Bromofluorobenzene (Surrogate)B204943-BLK1 103 %74 - 121 (LCL - UCL) 1 QC Batch ID: B205097 Benzene B205097-BLK1 0.0050NDmg/kg 0.00067 2 Bromobenzene B205097-BLK1 0.0050NDmg/kg 0.00087 2 Bromochloromethane B205097-BLK1 0.0050NDmg/kg 0.00081 2 Bromodichloromethane B205097-BLK1 0.0050NDmg/kg 0.00078 2 Bromoform B205097-BLK1 0.0050NDmg/kg 0.00070 2 Bromomethane B205097-BLK1 0.0050NDmg/kg 0.0017 2 n-Butylbenzene B205097-BLK1 0.0050NDmg/kg 0.00076 2 sec-Butylbenzene B205097-BLK1 0.0050NDmg/kg 0.00071 2 tert-Butylbenzene B205097-BLK1 0.0050NDmg/kg 0.00085 2 Carbon tetrachloride B205097-BLK1 0.0050NDmg/kg 0.00078 2 Chlorobenzene B205097-BLK1 0.0050NDmg/kg 0.00077 2 Chloroethane B205097-BLK1 0.0050NDmg/kg 0.0011 2 Chloroform B205097-BLK1 0.0050NDmg/kg 0.00090 2 Chloromethane B205097-BLK1 0.0050NDmg/kg 0.0011 2 2-Chlorotoluene B205097-BLK1 0.0050NDmg/kg 0.00087 2 4-Chlorotoluene B205097-BLK1 0.0050NDmg/kg 0.00070 2 Dibromochloromethane B205097-BLK1 0.0050NDmg/kg 0.00080 2 1,2-Dibromo-3-chloropropane B205097-BLK1 0.0050NDmg/kg 0.00096 2 1,2-Dibromoethane B205097-BLK1 0.0050NDmg/kg 0.00082 2 Dibromomethane B205097-BLK1 0.0050NDmg/kg 0.0014 2 1,2-Dichlorobenzene B205097-BLK1 0.0050NDmg/kg 0.00079 2 1,4-Dichlorobenzene B205097-BLK1 0.0050NDmg/kg 0.00073 2 Dichlorodifluoromethane B205097-BLK1 0.0050NDmg/kg 0.00079 2 1,1-Dichloroethane B205097-BLK1 0.0050NDmg/kg 0.00064 2 1,2-Dichloroethane B205097-BLK1 0.0050NDmg/kg 0.00073 2 1,1-Dichloroethene B205097-BLK1 0.0050NDmg/kg 0.0011 2 cis-1,2-Dichloroethene B205097-BLK1 0.0050NDmg/kg 0.00054 2 trans-1,2-Dichloroethene B205097-BLK1 0.0050NDmg/kg 0.0037 2 Total 1,2-Dichloroethene B205097-BLK1 0.010NDmg/kg 0.0043 2 1,2-Dichloropropane B205097-BLK1 0.0050NDmg/kg 0.00080 2 1,3-Dichloropropane B205097-BLK1 0.0050NDmg/kg 0.00067 2 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 30 of 43Report ID: 1001567227 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCCI, UST Bob Becker Reported:01/31/2025 12:21 Quality Control Report - Method Blank Analysis Constituent QC Sample ID MB Result Units Lab Quals Draft: Volatile Organic Analysis (EPA Method 8260B) Run #MDLPQL QC Batch ID: B205097 2,2-Dichloropropane B205097-BLK1 0.0050NDmg/kg 0.00067 2 1,1-Dichloropropene B205097-BLK1 0.0050NDmg/kg 0.00067 2 cis-1,3-Dichloropropene B205097-BLK1 0.0050NDmg/kg 0.00058 2 trans-1,3-Dichloropropene B205097-BLK1 0.0050NDmg/kg 0.00066 2 Total 1,3-Dichloropropene B205097-BLK1 0.010NDmg/kg 0.0013 2 Ethylbenzene B205097-BLK1 0.0050NDmg/kg 0.00069 2 Hexachlorobutadiene B205097-BLK1 0.0050NDmg/kg 0.00067 2 Isopropylbenzene B205097-BLK1 0.0050NDmg/kg 0.00080 2 p-Isopropyltoluene B205097-BLK1 0.0050NDmg/kg 0.00059 2 Methylene chloride B205097-BLK1 0.010NDmg/kg 0.0011 2 Methyl t-butyl ether B205097-BLK1 0.0050NDmg/kg 0.00056 2 Naphthalene B205097-BLK1 0.0050NDmg/kg 0.00099 2 n-Propylbenzene B205097-BLK1 0.0050NDmg/kg 0.00071 2 Styrene B205097-BLK1 0.0050NDmg/kg 0.00062 2 1,1,1,2-Tetrachloroethane B205097-BLK1 0.0050NDmg/kg 0.00095 2 1,1,2,2-Tetrachloroethane B205097-BLK1 0.0050NDmg/kg 0.00084 2 Tetrachloroethene B205097-BLK1 0.0050NDmg/kg 0.00097 2 Toluene B205097-BLK1 0.0050NDmg/kg 0.00069 2 1,2,3-Trichlorobenzene B205097-BLK1 0.0050NDmg/kg 0.0015 2 1,2,4-Trichlorobenzene B205097-BLK1 0.0050NDmg/kg 0.0014 2 1,1,1-Trichloroethane B205097-BLK1 0.0050NDmg/kg 0.00067 2 1,1,2-Trichloroethane B205097-BLK1 0.0050NDmg/kg 0.00094 2 Trichloroethene B205097-BLK1 0.0050NDmg/kg 0.00074 2 Trichlorofluoromethane B205097-BLK1 0.0050NDmg/kg 0.0015 2 1,2,3-Trichloropropane B205097-BLK1 0.0050NDmg/kg 0.0019 2 1,1,2-Trichloro-1,2,2-trifluoroethane B205097-BLK1 0.0050NDmg/kg 0.0010 2 1,2,4-Trimethylbenzene B205097-BLK1 0.0050NDmg/kg 0.00080 2 1,3,5-Trimethylbenzene B205097-BLK1 0.0050NDmg/kg 0.00066 2 Vinyl chloride B205097-BLK1 0.0050NDmg/kg 0.00059 2 Total Xylenes B205097-BLK1 0.010NDmg/kg 0.0025 2 t-Amyl Methyl ether B205097-BLK1 0.0050NDmg/kg 0.00050 2 t-Butyl alcohol B205097-BLK1 0.050NDmg/kg 0.012 2 Diisopropyl ether B205097-BLK1 0.0050NDmg/kg 0.00057 2 Ethanol B205097-BLK1 1.0NDmg/kg 0.16 2 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 31 of 43Report ID: 1001567227 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCCI, UST Bob Becker Reported:01/31/2025 12:21 Quality Control Report - Method Blank Analysis Constituent QC Sample ID MB Result Units Lab Quals Draft: Volatile Organic Analysis (EPA Method 8260B) Run #MDLPQL QC Batch ID: B205097 Ethyl t-butyl ether B205097-BLK1 0.0050NDmg/kg 0.00050 2 1,2-Dichloroethane-d4 (Surrogate)B205097-BLK1 112 %70 - 121 (LCL - UCL) 2 Toluene-d8 (Surrogate)B205097-BLK1 99.7 %81 - 117 (LCL - UCL) 2 4-Bromofluorobenzene (Surrogate)B205097-BLK1 102 %74 - 121 (LCL - UCL) 2 Run #QC Sample ID QC Type Method Prep Date Run Analyst Instrument DilutionDate Time 1 B204943-BLK1 PB EPA-8260B EAB MS-V18 101/27/25 01/27/25 13:08 2 B205097-BLK1 PB EPA-8260B EAB MS-V18 101/29/25 01/29/25 11:45 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 32 of 43Report ID: 1001567227 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCCI, UST Bob Becker Reported:01/31/2025 12:21 Quality Control Report - Laboratory Control Sample Constituent Control Limits PercentPercentSpike QC Sample ID Type Result Level Units Recovery RPD Recovery RPD Quals Draft: Volatile Organic Analysis (EPA Method 8260B) Run # Lab QC Batch ID: B204943 Benzene B204943-BS1 LCS 0.11127 0.12500 89.0 70 - 130mg/kg 1 Bromodichloromethane B204943-BS1 LCS 0.097000 0.12500 77.6 70 - 130mg/kg 1 Chlorobenzene B204943-BS1 LCS 0.10110 0.12500 80.9 70 - 130mg/kg 1 Chloroethane B204943-BS1 LCS 0.12427 0.12500 99.4 70 - 130mg/kg 1 1,4-Dichlorobenzene B204943-BS1 LCS 0.098930 0.12500 79.1 70 - 130mg/kg 1 1,1-Dichloroethane B204943-BS1 LCS 0.11090 0.12500 88.7 70 - 130mg/kg 1 1,1-Dichloroethene B204943-BS1 LCS 0.12567 0.12500 101 70 - 130mg/kg 1 Toluene B204943-BS1 LCS 0.10939 0.12500 87.5 70 - 130mg/kg 1 Trichloroethene B204943-BS1 LCS 0.10554 0.12500 84.4 70 - 130mg/kg 1 1,2-Dichloroethane-d4 (Surrogate)B204943-BS1 LCS 0.058430 0.050000 117 70 - 121mg/kg 1 Toluene-d8 (Surrogate)B204943-BS1 LCS 0.050500 0.050000 101 81 - 117mg/kg 1 4-Bromofluorobenzene (Surrogate)B204943-BS1 LCS 0.051120 0.050000 102 74 - 121mg/kg 1 QC Batch ID: B205097 Benzene B205097-BS1 LCS 0.11352 0.12500 90.8 70 - 130mg/kg 2 Bromodichloromethane B205097-BS1 LCS 0.11205 0.12500 89.6 70 - 130mg/kg 2 Chlorobenzene B205097-BS1 LCS 0.11246 0.12500 90.0 70 - 130mg/kg 2 Chloroethane B205097-BS1 LCS 0.12709 0.12500 102 70 - 130mg/kg 2 1,4-Dichlorobenzene B205097-BS1 LCS 0.11151 0.12500 89.2 70 - 130mg/kg 2 1,1-Dichloroethane B205097-BS1 LCS 0.11438 0.12500 91.5 70 - 130mg/kg 2 1,1-Dichloroethene B205097-BS1 LCS 0.12125 0.12500 97.0 70 - 130mg/kg 2 Toluene B205097-BS1 LCS 0.11683 0.12500 93.5 70 - 130mg/kg 2 Trichloroethene B205097-BS1 LCS 0.10670 0.12500 85.4 70 - 130mg/kg 2 1,2-Dichloroethane-d4 (Surrogate)B205097-BS1 LCS 0.054260 0.050000 109 70 - 121mg/kg 2 Toluene-d8 (Surrogate)B205097-BS1 LCS 0.052400 0.050000 105 81 - 117mg/kg 2 4-Bromofluorobenzene (Surrogate)B205097-BS1 LCS 0.050810 0.050000 102 74 - 121mg/kg 2 Run #QC Sample ID QC Type Method Prep Date Run Analyst Instrument DilutionDate Time 1 B204943-BS1 LCS EPA-8260B EAB MS-V18 101/27/25 01/27/25 13:32 2 B205097-BS1 LCS EPA-8260B EAB MS-V18 101/29/25 01/29/25 12:09 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 33 of 43Report ID: 1001567227 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCCI, UST Bob Becker Reported:01/31/2025 12:21 Quality Control Report - Precision & Accuracy Constituent Sample IDType Result Result Added Units RPD Recovery RPD Recovery Quals Source Spike Percent Percent Control Limits Draft: Volatile Organic Analysis (EPA Method 8260B) Source Lab R# QC Batch ID: B204943 Used client sample: N MSBenzene 0.10196 70 - 130ND0.12500 81.62501345-02 mg/kg 1 MSD 0.10192 0.0 20 70 - 130ND0.12500 81.52501345-02 mg/kg 2 MSBromodichloromethane 0.10103 70 - 130ND0.12500 80.82501345-02 mg/kg 1 MSD 0.10285 1.8 20 70 - 130ND0.12500 82.32501345-02 mg/kg 2 MSChlorobenzene 0.10011 70 - 130ND0.12500 80.12501345-02 mg/kg 1 MSD 0.099800 0.3 20 70 - 130ND0.12500 79.82501345-02 mg/kg 2 MSChloroethane 0.10801 70 - 130ND0.12500 86.42501345-02 mg/kg 1 MSD 0.10633 1.6 20 70 - 130ND0.12500 85.12501345-02 mg/kg 2 MS1,4-Dichlorobenzene 0.097300 70 - 130ND0.12500 77.82501345-02 mg/kg 1 MSD 0.098990 1.7 20 70 - 130ND0.12500 79.22501345-02 mg/kg 2 MS1,1-Dichloroethane 0.10223 70 - 130ND0.12500 81.82501345-02 mg/kg 1 MSD 0.10028 1.9 20 70 - 130ND0.12500 80.22501345-02 mg/kg 2 MS1,1-Dichloroethene 0.10283 70 - 130ND0.12500 82.32501345-02 mg/kg 1 MSD 0.10242 0.4 20 70 - 130ND0.12500 81.92501345-02 mg/kg 2 MSToluene 0.10067 70 - 130ND0.12500 80.52501345-02 mg/kg 1 MSD 0.099770 0.9 20 70 - 130ND0.12500 79.82501345-02 mg/kg 2 MSTrichloroethene 0.094850 70 - 130ND0.12500 75.92501345-02 mg/kg 1 MSD 0.095210 0.4 20 70 - 130ND0.12500 76.22501345-02 mg/kg 2 MS1,2-Dichloroethane-d4 (Surrogate)0.056040 70 - 121ND0.050000 1122501345-02 mg/kg 1 MSD 0.055620 0.8 70 - 121ND0.050000 1112501345-02 mg/kg 2 MSToluene-d8 (Surrogate)0.050420 81 - 117ND0.050000 1012501345-02 mg/kg 1 MSD 0.050290 0.3 81 - 117ND0.050000 1012501345-02 mg/kg 2 MS4-Bromofluorobenzene (Surrogate)0.051100 74 - 121ND0.050000 1022501345-02 mg/kg 1 MSD 0.050790 0.6 74 - 121ND0.050000 1022501345-02 mg/kg 2 QC Batch ID: B205097 Used client sample: Y - Description: USTG-S-3, 01/28/2025 10:12 MSBenzene 0.10753 70 - 130ND0.12500 86.02501413-01 mg/kg 3 MSD 0.10233 5.0 20 70 - 130ND0.12500 81.92501413-01 mg/kg 4 MSBromodichloromethane 0.10471 70 - 130ND0.12500 83.82501413-01 mg/kg 3 MSD 0.10166 3.0 20 70 - 130ND0.12500 81.32501413-01 mg/kg 4 MSChlorobenzene 0.10449 70 - 130ND0.12500 83.62501413-01 mg/kg 3 MSD 0.10087 3.5 20 70 - 130ND0.12500 80.72501413-01 mg/kg 4 MSChloroethane 0.11673 70 - 130ND0.12500 93.42501413-01 mg/kg 3 MSD 0.11078 5.2 20 70 - 130ND0.12500 88.62501413-01 mg/kg 4 MS1,4-Dichlorobenzene 0.10425 70 - 130ND0.12500 83.42501413-01 mg/kg 3 MSD 0.10029 3.9 20 70 - 130ND0.12500 80.22501413-01 mg/kg 4 MS1,1-Dichloroethane 0.10887 70 - 130ND0.12500 87.12501413-01 mg/kg 3 MSD 0.10581 2.9 20 70 - 130ND0.12500 84.62501413-01 mg/kg 4 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 34 of 43Report ID: 1001567227 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCCI, UST Bob Becker Reported:01/31/2025 12:21 Quality Control Report - Precision & Accuracy Constituent Sample IDType Result Result Added Units RPD Recovery RPD Recovery Quals Source Spike Percent Percent Control Limits Draft: Volatile Organic Analysis (EPA Method 8260B) Source Lab R# QC Batch ID: B205097 Used client sample: Y - Description: USTG-S-3, 01/28/2025 10:12 MS1,1-Dichloroethene 0.11148 70 - 130ND0.12500 89.22501413-01 mg/kg 3 MSD 0.10715 4.0 20 70 - 130ND0.12500 85.72501413-01 mg/kg 4 MSToluene 0.10532 70 - 130ND0.12500 84.32501413-01 mg/kg 3 MSD 0.099140 6.0 20 70 - 130ND0.12500 79.32501413-01 mg/kg 4 MSTrichloroethene 0.098890 70 - 130ND0.12500 79.12501413-01 mg/kg 3 MSD 0.093320 5.8 20 70 - 130ND0.12500 74.72501413-01 mg/kg 4 MS1,2-Dichloroethane-d4 (Surrogate)0.055280 70 - 121ND0.050000 1112501413-01 mg/kg 3 MSD 0.056450 2.1 70 - 121ND0.050000 1132501413-01 mg/kg 4 MSToluene-d8 (Surrogate)0.051100 81 - 117ND0.050000 1022501413-01 mg/kg 3 MSD 0.050820 0.5 81 - 117ND0.050000 1022501413-01 mg/kg 4 MS4-Bromofluorobenzene (Surrogate)0.050950 74 - 121ND0.050000 1022501413-01 mg/kg 3 MSD 0.051920 1.9 74 - 121ND0.050000 1042501413-01 mg/kg 4 Run #QC Sample ID QC Type Method Prep Date Run Analyst Instrument DilutionDate Time 1 B204943-MS1 MS EPA-8260B EAB MS-V18 101/27/25 01/27/25 13:56 2 B204943-MSD1 MSD EPA-8260B EAB MS-V18 101/27/25 01/27/25 14:21 3 B205097-MS1 MS EPA-8260B EAB MS-V18 101/29/25 01/29/25 12:34 4 B205097-MSD1 MSD EPA-8260B EAB MS-V18 101/29/25 01/29/25 12:58 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 35 of 43Report ID: 1001567227 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCCI, UST Bob Becker Reported:01/31/2025 12:21 Quality Control Report - Method Blank Analysis Constituent QC Sample ID MB Result Units Lab Quals Draft: Purgeable Aromatics and Total Petroleum Hydrocarbons Run #MDLPQL QC Batch ID: B204999 Gasoline Range Organics (C4 - C12)B204999-BLK1 1.0NDmg/kg 0.42 1 a,a,a-Trifluorotoluene (FID Surrogate)B204999-BLK1 125 %70 - 130 (LCL - UCL) 1 Run #QC Sample ID QC Type Method Prep Date Run Analyst Instrument DilutionDate Time 1 B204999-BLK1 PB EPA-8015B TDH GC-V8 101/27/25 01/27/25 12:59 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 36 of 43Report ID: 1001567227 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCCI, UST Bob Becker Reported:01/31/2025 12:21 Quality Control Report - Laboratory Control Sample Constituent Control Limits PercentPercentSpike QC Sample ID Type Result Level Units Recovery RPD Recovery RPD Quals Draft: Purgeable Aromatics and Total Petroleum Hydrocarbons Run # Lab QC Batch ID: B204999 Gasoline Range Organics (C4 - C12)B204999-BS1 LCS 4.7830 5.0000 95.7 85 - 115mg/kg 1 a,a,a-Trifluorotoluene (FID Surrogate)B204999-BS1 LCS 0.042000 0.040000 105 70 - 130mg/kg 1 Run #QC Sample ID QC Type Method Prep Date Run Analyst Instrument DilutionDate Time 1 B204999-BS1 LCS EPA-8015B TDH GC-V8 101/27/25 01/27/25 13:48 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 37 of 43Report ID: 1001567227 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCCI, UST Bob Becker Reported:01/31/2025 12:21 Quality Control Report - Precision & Accuracy Constituent Sample IDType Result Result Added Units RPD Recovery RPD Recovery Quals Source Spike Percent Percent Control Limits Draft: Purgeable Aromatics and Total Petroleum Hydrocarbons Source Lab R# QC Batch ID: B204999 Used client sample: N MSGasoline Range Organics (C4 - C12)5.0122 70 - 130ND5.0813 98.62501324-01 mg/kg 1 MSD 5.4127 7.7 20 70 - 130ND4.9603 1092501324-01 mg/kg 2 MSa,a,a-Trifluorotoluene (FID Surrogate)0.044715 70 - 130ND0.040650 1102501324-01 mg/kg 1 MSD 0.044643 0.2 70 - 130ND0.039683 1122501324-01 mg/kg 2 Run #QC Sample ID QC Type Method Prep Date Run Analyst Instrument DilutionDate Time 1 B204999-MS1 MS EPA-8015B TDH GC-V8 1.01601/27/25 01/27/25 14:13 2 B204999-MSD1 MSD EPA-8015B TDH GC-V8 0.99201/27/25 01/27/25 14:37 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 38 of 43Report ID: 1001567227 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCCI, UST Bob Becker Reported:01/31/2025 12:21 Quality Control Report - Method Blank Analysis Constituent QC Sample ID MB Result Units Lab Quals Draft: Total Concentrations (TTLC) Run #MDLPQL QC Batch ID: B205166 Antimony B205166-BLK1 5.0NDmg/kg 0.33 1 Arsenic B205166-BLK1 1.0NDmg/kg 0.40 1 Barium B205166-BLK1 0.50NDmg/kg 0.18 1 Beryllium B205166-BLK1 0.50NDmg/kg 0.047 1 Cadmium B205166-BLK1 0.50NDmg/kg 0.052 1 Chromium B205166-BLK1 0.50NDmg/kg 0.050 1 Cobalt B205166-BLK1 2.5NDmg/kg 0.098 1 Copper B205166-BLK1 1.0NDmg/kg 0.050 1 Lead B205166-BLK1 2.5NDmg/kg 0.41 1 Molybdenum B205166-BLK1 2.5 J0.055000 mg/kg 0.050 1 Nickel B205166-BLK1 0.50NDmg/kg 0.15 1 Selenium B205166-BLK1 1.0NDmg/kg 0.98 1 Silver B205166-BLK1 0.50NDmg/kg 0.067 1 Thallium B205166-BLK1 5.0NDmg/kg 0.64 1 Vanadium B205166-BLK1 0.50NDmg/kg 0.11 1 Zinc B205166-BLK1 2.5NDmg/kg 0.087 1 QC Batch ID: B205179 Mercury B205179-BLK1 0.16NDmg/kg 0.016 2 Run #QC Sample ID QC Type Method Prep Date Run Analyst Instrument DilutionDate Time 1 B205166-BLK1 PB EPA-6010B JRG ICP5 101/29/25 01/30/25 15:31 2 B205179-BLK1 PB EPA-7471A TMT CETAC3 101/30/25 01/30/25 11:08 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 39 of 43Report ID: 1001567227 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCCI, UST Bob Becker Reported:01/31/2025 12:21 Quality Control Report - Laboratory Control Sample Constituent Control Limits PercentPercentSpike QC Sample ID Type Result Level Units Recovery RPD Recovery RPD Quals Draft: Total Concentrations (TTLC) Run # Lab QC Batch ID: B205166 Antimony B205166-BS1 LCS 100.27 100.00 100 75 - 125mg/kg 1 Arsenic B205166-BS1 LCS 20.190 20.000 101 75 - 125mg/kg 1 Barium B205166-BS1 LCS 106.30 100.00 106 75 - 125mg/kg 1 Beryllium B205166-BS1 LCS 10.695 10.000 107 75 - 125mg/kg 1 Cadmium B205166-BS1 LCS 10.890 10.000 109 75 - 125mg/kg 1 Chromium B205166-BS1 LCS 107.45 100.00 107 75 - 125mg/kg 1 Cobalt B205166-BS1 LCS 110.32 100.00 110 75 - 125mg/kg 1 Copper B205166-BS1 LCS 104.22 100.00 104 75 - 125mg/kg 1 Lead B205166-BS1 LCS 110.95 100.00 111 75 - 125mg/kg 1 Molybdenum B205166-BS1 LCS 109.00 100.00 109 75 - 125mg/kg 1 Nickel B205166-BS1 LCS 109.58 100.00 110 75 - 125mg/kg 1 Selenium B205166-BS1 LCS 19.215 20.000 96.1 75 - 125mg/kg 1 Silver B205166-BS1 LCS 10.660 10.000 107 75 - 125mg/kg 1 Thallium B205166-BS1 LCS 109.44 100.00 109 75 - 125mg/kg 1 Vanadium B205166-BS1 LCS 107.68 100.00 108 75 - 125mg/kg 1 Zinc B205166-BS1 LCS 106.58 100.00 107 75 - 125mg/kg 1 QC Batch ID: B205179 Mercury B205179-BS1 LCS 0.78080 0.80000 97.6 80 - 120mg/kg 2 Run #QC Sample ID QC Type Method Prep Date Run Analyst Instrument DilutionDate Time 1 B205166-BS1 LCS EPA-6010B JRG ICP5 101/29/25 01/30/25 17:27 2 B205179-BS1 LCS EPA-7471A TMT CETAC3 101/30/25 01/30/25 11:11 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 40 of 43Report ID: 1001567227 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCCI, UST Bob Becker Reported:01/31/2025 12:21 Quality Control Report - Precision & Accuracy Constituent Sample IDType Result Result Added Units RPD Recovery RPD Recovery Quals Source Spike Percent Percent Control Limits Draft: Total Concentrations (TTLC) Source Lab R# QC Batch ID: B205166 Used client sample: Y - Description: USTGP-S-3, 01/28/2025 10:18 Antimony DUP ND 20ND2501413-03 mg/kg 1 MS 57.165 16 - 119ND100.00 57.22501413-03 mg/kg 2 MSD 52.895 7.8 20 16 - 119ND100.00 52.92501413-03 mg/kg 3 Arsenic DUP 6.7550 6.6 207.21502501413-03 mg/kg 1 MS 28.855 75 - 1257.2150 20.000 1082501413-03 mg/kg 2 MSD 28.665 0.7 20 75 - 1257.2150 20.000 1072501413-03 mg/kg 3 Barium DUP 53.935 23.1 2068.050 Q012501413-03 mg/kg 1 MS 148.16 75 - 12568.050 100.00 80.12501413-03 mg/kg 2 MSD 148.20 0.0 20 75 - 12568.050 100.00 80.12501413-03 mg/kg 3 Beryllium DUP 0.090400 4.1 200.094150 J2501413-03 mg/kg 1 MS 11.165 75 - 1250.094150 10.000 1112501413-03 mg/kg 2 MSD 10.740 3.9 20 75 - 1250.094150 10.000 1062501413-03 mg/kg 3 Cadmium DUP 0.065000 14.3 200.075000 J2501413-03 mg/kg 1 MS 11.285 75 - 1250.075000 10.000 1122501413-03 mg/kg 2 MSD 10.845 4.0 20 75 - 1250.075000 10.000 1082501413-03 mg/kg 3 Chromium DUP 4.3450 15.6 203.71502501413-03 mg/kg 1 MS 114.56 75 - 1253.7150 100.00 1112501413-03 mg/kg 2 MSD 110.26 3.8 20 75 - 1253.7150 100.00 1072501413-03 mg/kg 3 Cobalt DUP 2.3650 1.5 202.4000 J2501413-03 mg/kg 1 MS 114.08 75 - 1252.4000 100.00 1122501413-03 mg/kg 2 MSD 110.06 3.6 20 75 - 1252.4000 100.00 1082501413-03 mg/kg 3 Copper DUP 4.0700 27.1 203.1000 A022501413-03 mg/kg 1 MS 113.75 75 - 1253.1000 100.00 1112501413-03 mg/kg 2 MSD 109.01 4.3 20 75 - 1253.1000 100.00 1062501413-03 mg/kg 3 Lead DUP 1.1900 11.1 201.3300 J2501413-03 mg/kg 1 MS 114.69 75 - 1251.3300 100.00 1132501413-03 mg/kg 2 MSD 110.16 4.0 20 75 - 1251.3300 100.00 1092501413-03 mg/kg 3 Molybdenum DUP 0.31500 38.5 200.46500 J,A022501413-03 mg/kg 1 MS 110.26 75 - 1250.46500 100.00 1102501413-03 mg/kg 2 MSD 106.00 3.9 20 75 - 1250.46500 100.00 1062501413-03 mg/kg 3 Nickel DUP 3.0850 2.6 203.00502501413-03 mg/kg 1 MS 114.76 75 - 1253.0050 100.00 1122501413-03 mg/kg 2 MSD 109.58 4.6 20 75 - 1253.0050 100.00 1072501413-03 mg/kg 3 Selenium DUP ND 20ND2501413-03 mg/kg 1 MS 19.970 75 - 125ND20.000 99.82501413-03 mg/kg 2 MSD 19.030 4.8 20 75 - 125ND20.000 95.22501413-03 mg/kg 3 Silver DUP ND 20ND2501413-03 mg/kg 1 MS 10.880 75 - 125ND10.000 1092501413-03 mg/kg 2 MSD 10.455 4.0 20 75 - 125ND10.000 1052501413-03 mg/kg 3 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 41 of 43Report ID: 1001567227 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCCI, UST Bob Becker Reported:01/31/2025 12:21 Quality Control Report - Precision & Accuracy Constituent Sample IDType Result Result Added Units RPD Recovery RPD Recovery Quals Source Spike Percent Percent Control Limits Draft: Total Concentrations (TTLC) Source Lab R# QC Batch ID: B205166 Used client sample: Y - Description: USTGP-S-3, 01/28/2025 10:18 Thallium DUP ND 20ND2501413-03 mg/kg 1 MS 110.68 75 - 125ND100.00 1112501413-03 mg/kg 2 MSD 106.40 3.9 20 75 - 125ND100.00 1062501413-03 mg/kg 3 Vanadium DUP 14.325 0.5 2014.2552501413-03 mg/kg 1 MS 123.36 75 - 12514.255 100.00 1092501413-03 mg/kg 2 MSD 121.00 1.9 20 75 - 12514.255 100.00 1072501413-03 mg/kg 3 Zinc DUP 14.535 2.1 2014.2302501413-03 mg/kg 1 MS 122.56 75 - 12514.230 100.00 1082501413-03 mg/kg 2 MSD 119.92 2.2 20 75 - 12514.230 100.00 1062501413-03 mg/kg 3 QC Batch ID: B205179 Used client sample: N Mercury DUP 345.08 3.0 20355.742501022-31 mg/kg 4 MS 345.08 80 - 120355.74 0.81967 -1300 A032501022-31 mg/kg 5 MSD 345.08 0 20 80 - 120355.74 0.81967 -1300 A032501022-31 mg/kg 6 Run #QC Sample ID QC Type Method Prep Date Run Analyst Instrument DilutionDate Time 1 B205166-DUP1 DUP EPA-6010B JRG ICP5 101/29/25 01/30/25 15:36 2 B205166-MS1 MS EPA-6010B JRG ICP5 101/29/25 01/30/25 15:40 3 B205166-MSD1 MSD EPA-6010B JRG ICP5 101/29/25 01/30/25 15:42 4 B205179-DUP1 DUP EPA-7471A TMT CETAC3 512.3001/30/25 01/30/25 11:33 5 B205179-MS1 MS EPA-7471A TMT CETAC3 512.3001/30/25 01/30/25 11:35 6 B205179-MSD1 MSD EPA-7471A TMT CETAC3 512.3001/30/25 01/30/25 11:36 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 42 of 43Report ID: 1001567227 Soils Engineering 4400 Yeager Way Bakersfield, CA 93313 Project: Project Number: Project Manager: Soil 19680 KCCI, UST Bob Becker Reported:01/31/2025 12:21 Notes And Definitions J Estimated Value (CLP Flag) MDL Method Detection Limit ND Analyte Not Detected PQL Practical Quantitation Limit A02 The difference between duplicate readings is less than the quantitation limit. A03 The sample concentration was more than 4 times the spike level. Q01 Sample precision is not within the control limits. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 43 of 43Report ID: 1001567227