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pace <br /> P o A A T E o REPORT OF LABORATORY ANALYSIS <br /> TNF ASSURANCE OF OUALITT <br /> Mr Kurt Paschl QUALITY CONTROL DATA September 06 1994 <br /> Page 25 PACE Project Number 4408265 <br /> Client Reference 94047 10/Southern-Tracy Cold Storage <br /> VOLATILE ORGANICS, EPA METHOD 8240 GC/MS <br /> Batch 70 33393 <br /> Samples 70 0381452 <br /> METHOD BLANK ' <br /> Method { <br /> Parameter Units MDL Blank <br /> Chloro- enzene ung 5— <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 NO , <br /> 1 ,4-Dichlorobenzene ug/kg 5 ND <br /> 1 ,2-Dichlorobenzene ug/kg 5 ND <br /> 1,2-Dichloroethane-d4 (Surrog Recovery % 118 <br /> Toluene-d8 (Surrogate Recovery) % 108 <br /> 4-Bromofluorobenzene (Surrog Recovery) % 116 <br /> SPIKE AND SPIKE DUPLICATE <br /> Spike <br /> Spike Dupl <br /> Parameter Units MDL 100372186 S eke Recv Recv RPD <br /> 1. 1-II ch-loroethene ug/kg ,r— Nu — -W --M -;T <br /> Benzene ug/kg 5 NO 20 90% 92% 2X <br /> Trichloroethene ug/kg 5 NO 20 88% 95% 8%' <br /> Toluene ug/kg 5 NO 20 96% 94% 2% <br /> Chlorobenzene ug/kg 5 NO 20 101% 94% 7% <br /> 1 <br /> LABORATORY CONTROL SAMPLE AND CONTROL SAMPLE DUPLICATE <br /> Reference Dupl <br /> Parameter Units MDL Value Recv Recv RPD <br /> 1, I-Di chloroethene ugh 5— -- o -W -M 4% <br /> Benzene ug/kg 5 20 93% 92% 1% <br /> Trichloroethene ug/kg 5 20 104% 111% 7%' <br /> Toluene ug/kg 5 20 95% 100% 5% <br /> Chlorobenzene ug/kg 5 20 99% 96% 3% <br /> 11 09181 Orm <br /> An Equal Opportunity Employer <br /> Novato CA 94949 <br /> TEL 415 pea a100 <br /> FAX 415 983 2673 <br />