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PRECISION � <br /> ENVIRO-TECH <br /> Analytical Laboratory CERTIFICATE OFANAL YSIS <br /> Tuesday,March 13, 2007 <br /> Attention: Guy W.Roy <br /> R$L Diesel Report Page I of23 <br /> P.O.Box 2498 <br /> Glanville, CA 94526 <br /> Metals by EPA 6000/7000 Series Methods <br /> Sample Inform4 lion <br /> Sample ID: Over Tank Sample Type: Grab <br /> Laboratory ID: 7022608-01 Project Name: UST-Waste Oil <br /> Date/Time Sampled: 26-Feb-07 00:00 by Guy W.Roy Sample Matrix. Soil <br /> Test Parameter Result DLR Unit Dilution Batch Prepared Analysis Date Method Notes <br /> Silver 1.37 0.500 mg/kg 1 AC70504 05-Mar-07 05-Mar-07 EPA 6010A <br /> Arsenic 0.655 0.500 mg/kg 1 AC70504 05-Mar-07 05-Mar-07 EPA 6010A <br /> Barium 64.7 0.500 mglkg 1 AC70504 05-Mar-07 05-Mar-07 EPA 6010A <br /> Beryllium ND 0.500 mglkg 1 AC70504 05-Mar-07 05-Mar-07 EPA 6010A <br /> Cadmium ND 0.100 mglkg 1 C70504 05-Mar-07 05-Mar-07 EPA 6010A <br /> Cobalt 8.48 0.500' mg/kg 1 C70504 05-Mar-07 05-Mar-07 EPA 6010A <br /> Chromium 17.0 0.500 mg/kg 1 070504 05-Mar-07 05-Mar-07 EPA 6010A <br /> Copper 17.1 0.500 mg/kg 1 070504 05-Mar-07 05-Mar-07 EPA 6010A <br /> Mercury ND 0.100 mg/kg 1 C70602 06-Mar-07 07-Mar-07 EPA 6020 <br /> Molybdenum ND 0.500 mg/kg 1 C70504 05-Mar-07 05-Mar-07 EPA 6010A _ <br /> Nickel 20.6 0.500 mg/kg 1 C70504 05-Mar-07 05-Mar-07 EPA 6010A <br /> Lead 2.56 0.500 mg/kg 1 C70504 05-Mar-07 05-Mar-07 EPA 6010A <br /> Antimony ND 1.00 mglkg 1 C70504 05-Mar-07 05-Mar-07 EPA 6010A <br /> Selenium ND 0.500 mg/kg 1 C70504 05-Mar-07 05-Mar-07 EPA 6010A <br /> Thallium ND 0.500 mg/kg 1 C70504 05-Mar-07 05-Mar-07 EPA 6010A <br /> Vanadium 24.2 0.500 mg/kg 1 070504 05-Mar-07 05-Mar-07 EPA 6010A <br /> Zinc 17.2 0.500 mg/kg 1 AC70504 05-Mar-07 05-Mar-07 EPA 6010A <br /> mg/l,=milligrams per Liter—ppm DLR=Detection Limit for Purpose of Reporting. <br /> ug/L—micrograms perLiter—ppb Exceptional sample matrices or interferences may <br /> result in higher detection limits. <br /> RESPECTFULLY SUBMITTED, <br /> Jonathan Le, Laboratory Director <br /> 3935 N. Coronado Ave Stockton CA. 95204 shone: (209) 4 7-8105 Fax: (209) 477-8148 <br />