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ERM-West Project UPRR Stockton <br /> 620 Bercut Drive Project Number 8187 25 Reported <br /> Sacramento CA,95814 Project Manager John Borkovich 01/12/01 09 28 <br /> Volatile Organic Compounds by EPA Method 8260B-Quality Control <br />' Sequoia Analytical-San Carlos <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Ltnut Units Level Result %REC Limits RPD Lu tit Notes <br /> Batch 0120131 Prepared 01/03/01 Using EPA 5030B ]PIT] <br /> Blank(0120131-BLK3) <br /> Benzene ND 200 ug/l <br /> roluene ND 200 <br /> Ethylbenzene ND 200 <br /> Xylenes(total) ND 200 <br /> Ethanol ND 1000 <br /> Methyl tent-butyl ether ND 200 <br /> Di-isopropyl ether ND 200 <br /> Ter,butyl alcohol ND 100 <br />' Ethyl tert butyl ether ND 200 ' <br /> Teri-amyl methyl ether ND 200 <br /> Surrogate 12 Drchlorocthane d4 526 500 105 76-114 <br /> PSurrogate Toluene d8 548 500 110 88-110 <br /> Surrogate 4 BFB 554 500 /11 86-115 <br /> _LCS(0120131-BS1) <br /> Benzene 584 200 ug/l 500 117 70-130 <br /> Toluene 514 200 500 103 70-130 <br /> Methyl tert-butylether 554 200 500 111 70-130 <br />' Surrogate 12 Dtchloroethane-d4 529 500 106 76-114 <br /> Surrogate Toluene d8 515 500 103 88-110 <br /> Surrogate 4-BFB 550 500 110 86-115 <br /> LCS(0120131-BS2) <br /> Benzene 449 200 ug/l 500 898 70-130 <br /> Toluene 443 200 500 886 70-130 <br /> Methyl tent-butyl ether 433 200 500 866 70-130 <br />' Surrogate 12 Dichloroethane-d4 52 7 500 105 76 114 <br /> Surrogate Toluene-d8 487 500 974 88-110 <br /> Surrogate 4 BFB 528 .300 106 86 115 <br />' North Creek Analytical - Bothell The i esults in this report apply to the samples analyzed in accordance H ith the chain of <br /> custody document This analytical repos t must be reproduced in its entirety <br /> Kirk Gendron Project Manager Pap-e 13 of 15 <br />