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Alpha` Analytical Laboratories_Inc. : : `"860 Waugh Lane,H-1, Ukiah -California:95482 <br /> . . <br /> (707) 468-0401 <br /> November 6, 1991 <br /> Dames & ,Moore <br /> 1320 E. Shaw Ave Suite :L10 <br /> Fresno;. CA 93710 <br /> Attn: Jeff_� Palmer, <br /> Subject':" Quality. Control Report <br /> �OC `BATCH NUMBER - CWH 8142 <br /> MATRIX .WATER <br /> Method- Matrix Duplicate <br /> Blank spike Spike <br /> -Recovery Recovery Recovery RPD <br /> % <br /> Benzene ND 86. 0 88:0 23 <br /> Toluene NO 90. 0`. 92. 4 2 : 6 <br /> Xylenes ND 91.7 9.4 .4 - 2 . 9 : <br /> Ethlybenzene `. ND 90:6 93. 2 : <br /> 2 .8 <br /> Gasoline ND 91:7 90..9 .9 <br /> Note: This batch passes method quality control acceptance <br /> criteria. <br /> ND = none detected „ <br /> ALPHA ANALYTICAL LABORATORIESy, INC. <br /> r <br /> Bruce L. Gove <br /> 'Laboratory Director. <br /> DAMES &MOORE <br />