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CALIFORNIA LABORATORY SERVICES <br /> Committed. Responsive. Flexible. <br /> Page 3 of 4 12/05/19 15:30 <br /> NES Project: Cozad <br /> 1141 Sibley St Project Number: [none] CLS Work Order#:19L0016 <br /> Folsom,CA 95630 Project Manager: Natasha McClurg COC#:GREEN <br /> STLC (WET)Metals by 6000/7000 Series Methods-Quality Control <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch 1910185-EPA 3010A <br /> Blank(1910185-BLK1) Prepared&Analyzed: 12/05/19 <br /> Zinc ND 0.50 mg/L <br /> Copper ND 0.50 <br /> Chromium ND 0.50 <br /> Nickel ND 0.50 <br /> LCS(1910185-BSI) Prepared&Analyzed: 12/05/19 <br /> Zinc 54.8 0.50 mg/L 50.0 110 75-125 <br /> Chromium 57.4 0.50 50.0 115 80-120 <br /> Copper 54.4 0.50 50.0 109 80-120 <br /> Nickel 52.0 0.50 50.0 104 75-125 <br /> Matrix Spike(1910185-MS1) Source:19L0016-01 Prepared&Analyzed: 12/05/19 <br /> Zinc 68.0 0.50 mg/L 50.0 17.8 100 75-125 <br /> Chromium 51.5 0.50 50.0 0.666 102 75-125 <br /> Nickel 48.5 0.50 50.0 2.22 92 75-125 <br /> Copper 51.4 0.50 50.0 2.27 98 75-125 <br /> Matrix Spike Dup(1910185-MSD1) Source:19L0016-01 Prepared&Analyzed:12/05/19 <br /> Zinc 17.5 0.50 mg/L 50.0 17.8 NR 75-125 118 30 QM-5 <br /> Copper 2.22 0.50 50.0 2.27 NR 75-125 183 30 QM-5 <br /> Nickel 2.10 0.50 50.0 2.22 NR 75-125 183 30 QM-5 <br /> Chromium 0.639 0.50 50.0 0.666 NR 75-125 195 30 QM-5 <br /> 3249 Fitzgerald Road,Rancho Cordova,CA 95742 1 800.638.7301 1 Tel:916.638.7301 x102 1 Fax:916.638.4510 1 www.californialob.com <br /> Small Business#2916 1 ELAP#1233 1 NAICS#541380 1 CA SWRCB ELAP Accreditation/Registration Number 1233 <br />