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:- 7"'Analyfical ' <br /> ENVIRDNMENTAL SCIENCES <br /> Kleinfelder,Inc.-Rancho Cordova Reported: 07/06/2022 9:51 <br /> 2882 Prospect Park,Suite 200 Project: Tracy Costco UST Removal <br /> Rancho Cordova,CA 95670 Project Number: 20223491.001A <br /> Project Manager: Paolo Dizon <br /> Volatile Organic Analysis (EPA Method 82606/5035) <br /> Quality Control Report - Method Blank Analysis <br /> Constituent QC Sample ID MB Result Units PQL MDL Lab Quals <br /> QC Batch ID: B143200 <br /> cis-1,3-Dichloropropene 8143200-BLK1 ND mg/kg 0.0050 0.00058 <br /> trans-1,3-Dichloropropene B143200-BLK1 ND mg/kg 0.0050 0.00066 <br /> Totall,3-Dichloropropene B143200-BLK1 ND mg/kg 0.010 0.0013 <br /> Ethylbenzene B143200-BLK1 ND mg/kg 0.0050 0.00069 <br /> Hexachlorobutadiene 8143200-BLK1 ND mg/kg 0.0050 0.00067 <br /> Isopropylbenzene 8143200-BLK1 ND mg/kg 0.0050 0.00080 <br /> p4sopropyltoluene 8143200-BLK1 ND mg/kg 0.0050 0.00059 <br /> Methylene chloride B143200-BLK1 ND mg/kg 0.010 0.0011 <br /> Methyl t-butyl ether 8143200-BLK1 ND mg/kg 0.0050 0.00056 <br /> Naphthalene B143200-BLK1 ND mg/kg 0.0050 0.00099 <br /> n-Propylbenzene B143200-BLK1 ND mg/kg 0.0050 0.00071 <br /> Styrene B143200-BLK1 ND mg/kg 0.0050 0.00062 <br /> 1,1,1,2-Tetrachloroethane B143200-BLK1 ND mg/kg 0.0050 0.00095 <br /> 1,1,2,2-Tetrachloroethane 8143200-BLK1 ND mg/kg 0.0050 0.00084 <br /> Tetrachloroethene 8143200-BLK1 ND mg/kg 0.0050 0.00097 <br /> Toluene B143200-BLK1 ND mg/kg 0.0050 0.00069 <br /> 1,2,3-Trichlorobenzene 8143200-BLK1 ND mg/kg 0.0050 0.0015 <br /> 1,2,4-Trichlorobenzene 8143200-BLK1 ND mg/kg 0.0050 0.0014 <br /> 1,1,1-Trichloroethane B143200-BLK1 ND mg/kg 0.0050 0.00067 <br /> 1,1,2-Trichloroethane B143200-BLK1 ND mg/kg 0.0050 0.00094 <br /> Trichloroethene B143200-BLK1 ND mg/kg 0.0050 0.00074 <br /> Trichlorofluoromethane B143200-BLK1 ND mg/kg 0.0050 0.0015 <br /> 1,2,3-Trichloropropane B143200-BLK1 ND mg/kg 0.0050 0.0019 <br /> 1,1,2-Tdchloro-1,2,2-thfluoroethane 8143200-BLK1 ND mg/kg 0.0050 0.0010 <br /> 1,2,4-Trimethylbenzene B143200•BLK1 ND mg/kg 0.0050 0.00080 <br /> 1,3,5-Trimethylbenzene 8143200-BLK1 ND mg/kg 0.0050 0.00066 <br /> Vinyl chloride 8143200-BLK1 ND mg/kg 0.0050 0.00059 <br /> Total Xylenes 8143200-BLK1 ND mg/kg 0.010 0.0025 <br /> t-Amyl Methyl ether B143200-BLK1 ND mg/kg 0.0050 0.00050 <br /> t-Butyl alcohol 8143200-BLK1 ND mg/kg 0.050 0.012 <br /> Diisopropyl ether 8143200-BLK1 ND mg/kg 0.0050 0.00057 <br /> Ethanol 8143200-BLK1 ND mg/kg 1.0 0.16 <br /> Ethyl t-butyl ether B143200-BLK1 ND mg/kg 0.0050 0.00050 <br /> Total Purgeable Petroleum Hydrocarbons B143200-BLK1 ND mg/kg 0.20 0.058 <br /> The results in this report apply to the samples analysed in accordance with the chain of custody document.This analytical report must be reproduced in its entirety. <br /> 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. <br /> Report ID: 1001323091 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.pacelabs.com Page 16 of 23 <br />