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A <br /> PRECISION <br /> ENVIRO-TECH , <br /> Analytical Laboratory ' <br /> CERTIFICATE OFANALYSI <br /> Monday, March 22, 20OMW <br /> j Attention Rita Koehnen <br /> i <br /> Port of Stockton Report Page I of <br /> 2201 W Washington St <br /> Stockton, CA 95203 <br /> Volatile Organic Compounds by EPA Method,826013 ' <br /> - _ <br /> -- - r Sample Information <br /> Sample ID. MW 3-1 Sample Type Grab <br /> Laboratory ID: 0400750-01 Project Name. Port of Stockton UST Site No 3 <br /> Date/Time Sampled 26-Feb-04 14 00 by Jim Neal Sample Matrix Ground Water-Non Potable <br /> Test Parameter Result DLR Unit Dilution Batch Prepared Analysis Date Method Notes ' <br /> Benzene 117 1 00 ugll 1 AC42211 01-Mar-04 01-Mar-04 EPA 82608 <br /> Ethylbenzene 171 1 00 ugll 1 AC42211 01-Mar-04 01-Mar-04 EPA 82608 <br /> -, Toluene 246 1 00 ug/1 1 AC42211 01-Mar-04 01-Mar-04 EPA 8260E <br /> nn p-Xylene 489 1 00 ugll 1 AC42211 01-Mar-04 01-Mar-04 EPA 8260B <br /> o-Xylene 243 1 00 ugll 1 AC42211 01-Mar-04 01-Mar-04 EPA 8260E ' <br /> Gasoline 430 500 ug/1 1 AC42211 01-Mar-04 01-Mar-04 EPA 82608 <br /> _Surrogate Drbromofluoromethane 98% 86-918 <br /> Surrogate Toluene-d8 _ -- 95% 88-910 ^ <br /> Surrogate 4-Bromofluorobenzene 108% 86-115 <br /> r 1 <br /> mf,L=mil1q roms per 1 aLr—ppm DLR—Daeuton Lanus for Purpnu ofRcporrmg , <br /> u�,I = nucro€,roms per I rtcr=ppb bxceptronal sample matrrccs or rwcrf4renccs may <br /> retuh rn haghcr detcctron lrmus <br /> RESPECTFULLY SUBMITTED, w` <br /> Jonathan Le, Laboratory Director ' <br /> 7743 N West Lane Suite 132 Stockton CA 95210 phone (209) 477-8105 Fax (209) -177-8148 <br />