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00F=n <br /> L0124Ra- boratory <br /> T=C !HlAnCERTIFICATE 0FANALYSIS <br /> Wednesday,April 27, 2011 <br /> Attention: Phil Johnson <br /> Sumiden Wire Products Corp. Report Page 4of5 <br /> 1412 EI Pinal Drive <br /> Stockton, CA 95208-0719 <br /> Metals by EPA 200 Series Methods - 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 AD10703-EPA 3020A <br /> Matrix Spike Dup(AD10703-MSD1) Source: 1040712-01 Prepared&Analyzed:07-Apr-11 <br /> Cadmium 0.0451 0.00500 mg/L 0.0500 ND 90 75-125 4 20 <br /> Thallium 0.0871 0.0100 0.100 ND 87 80-120 0.8 20 <br /> Lead 0.0345 0.00500 0.0500 ND 69 70-125 20 20 <br /> Barium 1.91 0.0500 2.00 0.0209 94 75-125 3 20 <br /> Silver 0.0718 0.0100 0.100 ND 72 70-125 6 20 <br /> Vanadium 0.436 0.0100 0.500 0.00380 86 75-125 5 20 <br /> Selenium 0.0467 0.0100 0.0500 0.00107 91 75-125 13 20 <br /> Copper 0.248 0.0100 0.250 0.00254 98 75-125 5 20 <br /> Chromium 0.0876 0.0100 0.100 0.0105 77 75-125 3 20 <br /> Cobalt 0.469 0.00500 0.500 ND 94 75-125 4 20 <br /> Nickel 0.372 0.0100 0.400 0.00488 92 70-125 6 20 <br /> Antimony 0.551 0.0100 0.600 ND 92 75-125 3 20 <br /> Zinc 0.184 0.0100 0.200 0.0246 80 75-125 8 20 <br /> Arsenic 0.0944 0.0100 0.100 0.00321 91 80-125 8 20 <br /> mg/L=milligrams 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 /> Jonathan Le,Laboratory Director <br /> • 3935 N. Coronado Ave Stockton CA. 95204 phone: (209) 477-8105 Fax: (209) 546-7497 <br />