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AUG.28.2883 12.56PM CAL/EPA DTSC - HWMP N0.431 P.5i5 <br /> Plug �J ua ua: •roa n" IMMLP, 5J 540-3515 <br /> p. 4 <br /> r <br /> 14 <br /> California Department of Toxic Substances Control HMh#: AN00037 <br /> HAZARL)OUS MATERIALS LABORATORY to : <br /> 2151 Berkeley Way, Berkeley, CA 94704, Ph: (510) 5403003 Auth.No.: HMT5169 <br /> Laboratory Quality Control Report Page 2of 2 <br /> For pH <br /> Collector's Name: Leo Valdez f <br /> Collector's Address: DTSC, 700 Heinz Avd., Suite 200 Date Collected: <br /> Berkeley, CA 94710 _ Date Received: 7/26/2003 <br /> Site of Sampling: Sumiden Wire Products Date Extracted: 7/30/2003 <br /> Site Address: 1412 I7-1 Proal Dr, Date Analyzed, 7/30%2003 <br /> Stockton 95205 Method Used: EPA 90450 <br /> 1. Calibration Standard Data <br /> ID Vendor Lot Expiratlon Buffer pH mV51ope <br /> PN Number Date T e Buffer Readin <br /> EMScience 2060 '?/29/2004 Liquid 7.00 -6.1 <br /> EMScience 2343 1/30/2003 LJquid 10.00 �i70.0 93.1 <br /> EMScience 70226367 I Liquid 13.00 -336.3 93,1 <br /> 11. Laboratory Control Sample <br /> Lot pH Expected Observed Absolute <br /> Source Number gufFer Resuesult Differonce <br /> VWR 2308 9.00 9.00 9.00 0.00 <br /> H drion 12,00 12.00 11.84 0.16 <br /> pH of deionized 1-120 used in dilution 6,72 <br /> i <br /> 111. Laboratory Duplicate Sample Results <br /> HML Sample Sample Duplicate Absolute <br /> Number T e Result Result Difference <br /> ANG003-77 Solid 10.21 10.21 0.00 <br /> Co m m e rtts: <br /> �n—aidn <br /> COdioHn ate i Jar 11 Gareha <br /> .H. Chemist Il Da e <br /> Supervisor <br />