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Analytical Laboratory <br /> CERTIFICATE OFANAL YSIS <br /> Wednesday,November 11,2009 <br /> Attention: Doug Smith <br /> San Joaquin Regional Transit District Report l'uge 3 Q/5 <br /> 120 N. Filbert Street <br /> Stockton, CA 95205 <br /> Metals by EPA 6000/7000 Series Methods-Quality Control <br /> Precision Enviro-Tech <br /> Repomng Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result oREC Limits RPD Limit Notes <br /> Batch AK91104-General Preparation <br /> Blank(AK91104-BLKI) Prepared&Analyzed: 11-Nov-09 <br /> Copper ND 0.0100 mg/kg <br /> Silver ND 0.0100 " <br /> Beryllium ND 0.0100 " <br /> Cadmium ND 0.0100 <br /> Mercury ND 0.100 " <br /> Lead ND 0.0100 " <br /> Antimony ND 0.0100 " <br /> Vanadium ND 0.0100 " <br /> Zinc ND 0.0100 " <br /> Arsenic ND 0.0100 " <br /> Barium ND 0.0100 " <br /> Thallium ND 0.0100 " <br /> Cobalt ND 0.0100 " <br /> Chromium ND 0.0100 " <br /> Selenium ND 0.0100 " <br /> Molybdenum ND 0.0100 " <br /> Nickel ND 0.0100 " <br /> LCS(AK91104-BSI) Prepared&Analyzed: I 1-Nov-09 <br /> Cadmium 0.982 0.0100 mg/kg 1.00 98 80-120 <br /> Silver 1.01 0.0100 1.00 101 80-120 <br /> Selenium 1.01 0.0100 1.00 101 80-120 <br /> Beryllium 0.931 0.0100 1.00 93 80-120 <br /> Thallium 0.982 0.0100 1.00 98 80-120 <br /> Copper 114 0.0100 Ito 104 80-120 <br /> Nickel 1.01 0.0100 1.00 101 80-120 <br /> Zinc 11.0 0.0100 110 100 80-120 <br /> Barium 0987 0.0100 1.00 99 80-120 <br /> Memmy 0.115 0.100 75-125 <br /> Arsenic 1.02 0.0100 1.00 102 80-120 <br /> Chromium 0,992 0.0100 1.00 99 80-120 <br /> Vanadium 0.998 0.0100 1.00 100 80-120 <br /> Antimony 0,982 0.0100 1.00 98 80-120 <br /> .,L per later ppm DLR lkrecnmr LimirJ r Nr,�,,,uRp r,M <br /> 'Lm,rogra.p'Loer ppM1 Fsceprimml sample marncez or mre7ererv.<s muy <br /> rcenlr m hgl�erdeattlon hmrn. <br /> RESPECTFULLY SUBMITTED, <br /> Jonathan Le,Laboratory Director <br /> 3935 N. Coronado Ave Stockton CA. 95204 phone: (209) 477-8105 Foix: (209) 546-7497 <br />