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H o w P o A T f oCgs REPORT OF LABORATORY ANALYSIS <br /> TME ASSUR4RCE OF 004L4 TT <br /> Mr Kurt Paschl QUALITY CONTROL DATA September 06, 1994 <br /> Page 27 PACE Project Number 4408265 <br /> Client Reference 94047 10/Southern-Tracy Cold Storage , <br /> VOLATILE ORGANICS EPA METHOD 8240 GC/MS <br /> Batch 70 33571 <br /> Samples 70 0381347 70 0381355 70 0381380 <br /> METHOD BLANK ' <br /> Method <br /> Parameter Units MDL Blank <br /> oro enzene ug gg 5 Nu -- <br /> Ethylbenzene ug/kg 5 ND ' <br /> Bromoform ug/kg 5 ND <br /> Xylene(s) Total ug/kg 5 ND <br /> Styrene ug/kg 5 ND ' <br /> 1 ,1,2,2, -Tetrachloroethane ug/kg 5 ND <br /> 1,3-Dichlorobenzene ug/kg 5 ND , <br /> 1 ,4-Dichlorobenzene ug/kg 5 ND <br /> 1.2-Dichlorobenzene ug/kg 5 ND <br /> 1,2-Dichloroethane-d4 (Surrog Recovery % 121 <br /> Toluene-d8 (Surrogate Recovery) X 101 <br /> 4-Bromofluorobenzene (Surrog Recovery) % 110 <br /> SPIKE AND SPIKE DUPLICATE <br /> Spike <br /> Spike Dupl <br /> Parameter <br /> Units MDL 700375762 Spike Recv Recv RPD <br /> 1.T-01i cTiToroethene ug/kg ,— NU 20 -M -M M <br /> Benzene ug/kg 5 ND 20 81% 92% 13% <br /> Trichloroethene ug/kg 5 ND 20 85% 105% 21%' <br /> Toluene ug/kg 5 ND 20 78% 87% 11% <br /> Chlorobenzene ug/kg 5 ND 20 84% 89% 6% <br /> LABORATORY CONTROL SAMPLE AND CONTROL SAMPLE DUPLICATE <br /> ParameterReference Dupl <br /> Units MDL Value Recv Recv RPD ' <br /> TTDic Toroethene ug/kg 5 0 -7M -"M -M <br /> Benzene ug/kg 5 20 90% 92% 2% <br /> Trichloroethene ug/kg 5 20 106% 100% 6%' <br /> Toluene ug/kg 5 20 88% 97% 10% <br /> Chlorobenzene ug/kg 5 20 94% 90% 4% <br /> 11 Ognd <br /> Narata CA 94949 An Equal Opportunity Employer <br /> TEL 415 883 6100 <br /> FAX 415 803 2673 <br />