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(� Of -7 <br /> In��I��®OD�Mnalytical Laboratory CERTIFICATE OFANALYSIS <br /> Wednesdtry, May 4, 2011 <br /> Attention: Phil Johnson <br /> Sumiden Wire Products Corp. Report Page s of <br /> 1412 EI Pinal Drive <br /> Stockton, CA 95208-0719 <br /> Metals by 6000/7000 Series with Citrate Buffer Extraction Procedure- Quality Control <br /> Precision Enviro-Tech <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch AE10405-CA WET-Title 22 Cit. <br /> Blank(AE10405-BLKI) Prepared&Analyzed:04-May-I1 <br /> Copper ND 0.0100 mg/L <br /> Chromium ND 0.0100 " <br /> LCS(AE10405-BSI) Prepared&Analyzed:04-May-11 <br /> Copper 0.0223 0.0100 mg/L 0.0200 111 80-120 <br /> Chromium 0.0201 0.0100 110.0200 101 80-120 <br /> Matrix Spike(AE10405-MSI) Source: 1042803-04 Prepared&Analyzed:04-May-11 QM-07 <br /> Copper 0.779 0.0100 mg/L 0.100 0.772 7 70-125 <br /> Chromium 0.372 0.0100 110.100 372 75-125 <br /> Matrix Spike Dup(AE10405-MSD1) Source: 1042803-04 Prepared&Analyzed:04-May-11 QM-07 <br /> Copper 0.998 0.0100 mg/L 0.100 0.772 226 70-125 25 20 <br /> Chromium 0.449 0.0100 110.100 449 75-125 19 20 <br /> mg/L=miUigrams per Liter=ppm DLR=Detection Limit for Purpose of Reporting. <br /> ug/L=micrograms per Liter=ppb Exceptional sample matrices or interferences may <br /> result in higher detection limits. <br /> RESPECTFULLY SUBMITTED, <br /> (��/Otlz� <br /> Jonathan Le,Laboratory Director <br /> 3935 N. Coronado Ave Stockton CA. 95204 phone: (209) 477-8105 Fax: (209) 546-7497 <br />