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_ __.-Pace Analytical" <br /> ENVII10NMENTAL SCIENCES <br /> Kleinfelder,Inc.-Rancho Cordova Reported: 06/21/2022 14:57 <br /> 2882 Prospect Park,Suite 200 Project: Tracy Costco UST Removal <br /> Rancho Cordova,CA 95670 Project Number: 20223491.00A <br /> Project Manager: Paolo Dizon <br /> Volatile Organic Analysis (EPA Method 82606) <br /> Quality Control Report- Method Blank Analysis <br /> Constituent QC Sample ID MB Result Units PQL MDL Lab Quals <br /> QC Batch ID: B142302 <br /> cis-1,3-Dichloropropene 8142302-BLKI ND ug/L 0.50 0.14 <br /> trans-1,3-Dichloropropene B142302-BLK1 ND ug/L 0.50 0.079 <br /> Totall,3-Dichloropropene B142302-BLK1 ND ug/L 1.0 0.21 <br /> Ethylbenzene B142302-BLK1 ND ug/L 0.50 0.098 <br /> Hexachlorobutadiene 8142302-BLK1 ND ug/L 0.50 0.17 <br /> Isopropylbenzene B142302-BLK1 ND ug/L 0.50 0.14 <br /> p4sopropyltoluene B142302-BLK1 ND ug/L 0.50 0.12 <br /> Methylene chloride B142302-BLK1 ND ug/L 1.0 0.48 <br /> Methyl t-butyl ether B142302-BLK1 ND ug/L 0.50 0.11 <br /> Naphthalene B142302-BLK1 ND ug/L 0.50 0.36 <br /> n-Propylbenzene B142302-BLK1 ND ug/L 0.50 0.11 <br /> Styrene B142302-BLK1 ND ug/L 0.50 0.068 <br /> 1,1,1,2-Tetrachloroethane B142302-BLK1 ND ug/L 0.50 0.18 <br /> 1,1,2,2-Tetrachloroethane B142302-BLK1 ND ug/L 0.50 0.17 <br /> Tetrachlorcethene B142302-BLK1 ND ug/L 0.50 0.13 <br /> Toluene B142302-BLK1 ND ug/L 0.50 0.093 <br /> 1,2,3-Tdchlorobenzene B142302-BLK1 ND ug/L 0.50 0.16 <br /> 1,2,4-Trichlorobenzene 8142302-BLK1 ND ug/L 0.50 0.19 <br /> 1,1,1-Trichloroethane B142302-BLK1 ND ug/L 0.50 0.11 <br /> 1,1,2-Trichloroethane B142302-BLK1 ND ug/L 0.50 0.16 <br /> Trichloroethene B142302-BLK1 ND ug/L 0.50 0.085 <br /> Trichlorofluoromethane B142302-BLKI ND ug/L 0.50 0.13 <br /> 1,2,3-Trichloropropane B142302-BLK1 ND ug/L 1.0 0.24 <br /> 1,1,2-Tdchloro-1,2,2-t6fluoroethane B142302-BLK1 ND ug/L 0.50 0.15 <br /> 1,2,4-Tdmethylbenzene B142302-BLK1 ND ug/L 0.50 0.12 <br /> 1,3,5-Tdmethylbenzene B142302-BLK1 ND ug/L 0.50 0.12 <br /> Vinyl chloride 6142302-BLK1 ND ug/L 0.50 0.12 <br /> Total Xylenes 8142302-BLK1 ND ug/L 1.0 0.36 <br /> t-Amyl Methyl ether B142302-BLK1 ND ug/L 0.50 0.25 <br /> t-Butyl alcohol B142302-BLK1 ND ug/L 10 9.4 <br /> Diisopropyl ether 8142302-BLK1 ND ug/L 0.50 0.23 <br /> Ethanol B142302-BLK1 ND ug/L 250 50 <br /> Ethyl t-butyl ether B142302-BLK1 ND ug/L 0.50 0.18 <br /> Total Purgeable Petroleum Hydrocarbons B142302-BLK1 ND ug/L 50 7.2 <br /> 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. <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: 1001318187 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.pacelabs.com Page 67 of 79 <br />