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pac4ry REPORT OF LABORATORY ANALYSIS <br /> FAE ASSUA►"ICE QF 0 U A L I T y <br /> Mr Kurt Paschl QUALITY CONTROL DATA August 22, 1994 <br /> Page 34 PACE Project Number* 440808500 <br /> Client Reference- - <br /> e erence- 94147 11/Seutheastern Tracy,CA <br /> VOLATILE ORGANICS, EPA METHOD 8240 GC/MS <br /> Batch: 70 32691 <br /> Samples: 70 0368006, 70 0368014 <br /> METHOD BLANK- <br /> Method <br /> Parameter Units MDL Blank <br /> Chlorobenzene ug g '5--- N� <br /> Ethylbenzene ug/kg 5 NO <br /> Bromoform ug/kg 5 NO <br /> Xylene(s) Total ug/kg 5 NO <br /> Styrene ug/kg 5 NO <br /> 1,1,2,2,-Tetrachloroethane ug/kg 5 NO <br /> 1,3-Dichlorobenzene ug/kg 5 ND <br /> 1,4-Dichlorobenzene ug/kg 5 NO <br /> 1,2-Dichlorobenzene ug/kg 5 ND <br /> 1,2-Dichloroethane-d4 (Surrog. Recovery % 108 <br /> Toluene-d8 (Surrogate Recovery) % 97 <br /> 4-Bromofluorobenzene (Surrog. Recovery) % 107 <br /> SPIKE AND SPIKE DUPLICATE: <br /> Spike <br /> Spike Dupl <br /> Parameter Units MDL 750147246Spike Recv Recv RPD <br /> I,I-Dichloroethene ug g -M -M 1% <br /> Benzene ug/kg 5 NO 20 98% 92% 6% <br /> Trichloroethene ug/kg 5 NO 20 104% 100% 4% <br /> Toluene ug/kg 5 NO 20 96% 97% 1% <br /> Chlorobenzene ug/kg 5 NO 20 99% 97% 2% <br /> LABORATORY CONTROL SAMPLE AND CONTROL SAMPLE DUPLICATE: <br /> Reference Dupl <br /> Parameter Units MDL Value Recv Recv RPD <br /> -Dichloroethene ug g T— --2F— -M -M --ff <br /> Benzene ug/kg 5 20 78% 88% 12% <br /> Trichloroethene ug/kg 5 20 83% 94% 12% <br /> Toluene ug/kg 5 20 86% 89% 3% <br /> Chlorobenzene ug/kg 5 20 82% 85% 4% <br /> 11 OgEtel Onre An Equai OppoAundy Employer <br /> Novato CA 94948 <br /> TR 415//31100 <br /> FAX 415 883 2673 <br />