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JUN. 6.2003,.12:39PM A DTSC HWMP NO.905 P.5/5 <br />Matj C- e Va ur— "-jr L r1ML J 5AAbh=40-3815 p. 4 <br />California Department of Toxic Substances Control <br />HAZARDOUS MATERIALS LABORATORY <br />2151 Berkeley Way, Berkeley, CA 94704, Ph: (510) 540-3003 <br />Laboratory Quality Control Report <br />For PH <br />Collector's Name: Leo Valdez <br />Collectors Address: DTSC. 700 Heinz Ave., Suits 200 <br />"Ferliel2y, CA 94710 <br />Site of Sampling: Delta Plating <br />Site Address: 818 S. Stanislaus <br />Stockton 95206 <br />1. Calibration Standard Data <br />HML #: 021049 <br />to ; 021051 <br />Auth,Noa HMS5085 <br />Page 2 <br />of 2 <br />Date Collected: <br />Date ReCeNed:T-7/2003 <br />Date Extractmd: 5/16/2003 <br />Date AnaN-zed- - 511512003 <br />Method Used: EPA 90450 <br />11, Laboratory Control Sample <br />PH of delonized H2O used in dilution, 6.78, <br />I[k Laboratory Duplicate Sample Results <br />Comments., <br />V,krajda Odion <br />V�. Chemist 11 <br />Jarna'il Garcha <br />Supervisor <br />Date <br />