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CALIFORNIA LABORATORY SERVICES <br /> Page 14 of 18 06/01/10 14:38 <br /> KR Environmental-Chico Project: First Bus <br /> 1026 Almendia Court Project Number: [none] CLS Work Order#:CTE0887 <br /> Chico,CA 95926 Project Manager: Mike Goodwin COC#: 114629 <br /> GasBTEX by GC PID/FID-Quality Control <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch CT03704- EPA 5030 Water GC <br /> Blank(CT03704-BLKI) Prepared:05/26/10 Analyzed:05/27/10 <br /> Gasoline ND 50 µg/L <br /> Benzene ND 0.50 " <br /> Toluene ND 0.50 " <br /> Ethylbenzene ND 0.50 " <br /> Xylenes(total) ND 1.0 " <br /> Surrogate:o-Chlorotoluene(BTE1l7 27.2 20.0 136 65-135 QS-HI <br /> Surrogate:o-Chlorotoluene(Gas) 16.6 20.0 83 65-135 <br /> LCS(CT03704-BS1) Prepared:05/26/10 Analyzed:05/27/10 <br /> Gasoline 477 50 pg/L 500 95 65-135 <br /> Surrogate:o-Chlorotoluene(Gas) 18.8 20.0 94 65-135 <br /> LCS Dup(CT03704-BSD1) Prepared:05/26/10 Analyzed:05/27/10 <br /> Gasoline 454 50 pg/L 500 91 65-135 5 30 <br /> Surrogate:o-Chlorotoluene(Gas) 18.2 1120.0 91 65-135 <br /> Matrix Spike(CT03704-MS1) Source:CTE0906-02 Prepared:05/26/10 Analyzed:05/27/10 <br /> Gasoline 482 50 pg/L 500 17.4 93 65-135 <br /> Surrogate:o-Chlorotoluene(Gas) 18.7 1120.0 93 65-135 <br /> Matrix Spike Dup(CT03704-MSD1) Source:CTE0906-02 Prepared:05/26/10 Analyzed:05/27/10 <br /> Gasoline 442 50 µg/L 500 17.4 85 65-135 9 30 <br /> Surrogate:o-Chlorotoluene(Gas) 17.5 20.0 87 65-135 <br /> CA DOHS ELAP Accreditation/Registration Number 1233 <br /> 3249 Fitzgerald Road Rancho Cordova,CA 95742 www.californialab.com 916-638-7301 Fax: 916-638-4510 <br />