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Alpha .Analytical. Laboratories Inc. • 860 1Naugh.'L�ane,_H-1,' Ukiah, California 95482 <br /> (707) 468-0401 <br /> November 6, 1991 <br /> Dames & Moore <br /> 1320 .E. Shaw Ave.' Suite 110 <br /> Fresno, CA 93710 <br /> Attn: Jeff Palmer ' <br /> Subject: Quality Control Report' <br /> QC. BATCH NUMBER CWH .8142 <br /> ..MATRIX. - WATER <br /> Method . Matrix . Duplicate <br /> Blank Spike Spike <br /> Recovery` Recoveiv Recovery RPD . <br /> Benzene, ND 86. 0 88 .0 2 ,.3 <br /> Toluene ND 90. 0 92 .4 2 .6 <br /> Xylenes ND 91.7 94 .4 2 .9 <br /> Ethlybenzene ND 90. 6 93 .2 2 . 8 <br /> Gasoline : ND 9 1.7 90.9 ;g <br /> ., Note: This -batch-.passes method -quality 'control . acceptance. . <br /> criteria. <br /> ND `= none ,detected <br /> ALPHA ANALYTICAL LABORATORIES.,` INC. . <br /> Bruce. L. : Gove <br /> Laboratory Director <br /> DAMES 6i MOORE <br />