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.. � � <br /> n <br /> ZU <br /> Superior Precision.,"a6er ca/, /r7c. <br /> 82S Arnold Drive,Suite 114 Martinez, California 94553 {510)229-151 ?/fax 15101229-1526 <br /> 1 <br /> 1 C E R T I F I C A T E O F A N A L Y S I S <br /> LABORATORY NO, : 84255 DATE RECEIVED: 10/30/91 <br /> CLIENT: GROUNDWATER TECHNOLOGIES INC. DATE REPORTED: 11/12/91 <br /> ` CLIENT JOB NO. : 020300163 <br /> ANALYSIS FOR CADMIUM, CHROMIUM, LEAD & ZINC <br /> ) <br /> by EPA SW-846 Method 6010 <br /> LAB Concentration (mg/L) <br /> # Sample Identification Cadmium Chromium Lead Zinc <br /> 1 PRODUCT ND<0.05 0.08 0.2 0«41 <br /> mg/L - parts per million (ppm) <br /> Method Detection Limit for Cadmium in Water: 0.05 mg/L <br /> Method Detection Limit for Chromium in Water: 0.05 mg/L <br /> Method Detection Limit for Lead in Water: 0.1 mg/L <br /> t Method Detection Limit for Zinc in Water: 0.05 mg/L 1 <br /> QAQC Summary: MS/MSD Average Recovery ; 94/96% <br /> Duplicate RPD 2 <br /> Richard Srna, Ph.D. <br /> Laboratory Manager <br /> - <br /> Certified Laboratories . <br /> tl <br /> i ' <br />