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CHROMALAB, INC. <br /> Environmental Services(SDB) <br /> July 21, 1997 Submission #: 9707178 <br /> Atten: Jonathan Goadmacher/CONST <br /> Project: CINTIA HOMES,TRACY Project#: 20-0442 <br /> Received: July 14, 1997 <br /> h r <br /> re: One sample for Gasoline BTEX analysis . <br /> Method: SW846 8020A Nov 1990 / 8015Mod <br /> Cl i en t Sample <br /> Spl#: 139598 Matrix: SOIL Moisture: e <br /> Sampled: July 14, 1997 Run#: 7825 Analyzed: July 18 , 1997 <br /> REPORTING BLANK BLANK DILUTION <br /> -- RESULT LIMIT RESULT SPIKE FACTOR <br /> ANALYTE _ (mg/Kg) (mq/Kcr) (mcr/Ka) M <br /> GASOLINE 540 240 N.D. -- 2 <br /> BENZENE N.D. 1 .2 N.D. 99 2 <br /> TOLUENE N.D. 1 . 2 N.D. 102 2 <br /> ETHYL BENZENE N.D. 1 . 2 N.D. 112 2 <br /> XYLENES 3 . 9 1 . 2 N.D. 116 2 <br /> Note: Surrogate Recoveries biased high du to Hydrocarbon co-elution. <br /> h <br /> Kayvan Kimyai Marianne Alexander <br /> Chemist Gas/BTEX Supervisor <br /> 4 .+ <br /> See COC <br /> 1220 Quarry Lane • Pleasanton, alifornia 94566-4756 PM V135 0:BTEXQCO22C <br /> (510) 484-1919• Facsimile (510) 484-1096 ALEXAMM 15:18 <br /> Federal ID#68-0140157 <br />