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CALIFORNIA LABORATORY SERVICES <br /> Committed. Responsive. Flexible. <br /> 02/26/21 14:12 <br /> APEX Envirotech Inc.-Gold River Project: Panella Tracking <br /> 11291 Pyrites Wy.Suite B Project Number: [none] CLS Work Order#:21131201 <br /> Gold River,CA 95670 Project Manager: George Converse COC#:211890/205920/205921 <br /> Metals by EPA 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 2101529-EPA 3050B <br /> Blank(2101529-BLK1) Prepared&Analyzed:02/23/21 <br /> Cadmium ND 1.0 mg/kg <br /> Chromium ND 5.0 <br /> Lead ND 10 <br /> Nickel ND 10 <br /> Zinc ND 5.0 <br /> LCS(2101529-BS1) Prepared&Analyzed:02/23/21 <br /> Cadmium 95.8 1.0 mg/kg 100 96 75-125 <br /> Chromium 95.8 5.0 100 96 75-125 <br /> Lead 107 10 100 107 75-125 <br /> Nickel 98.0 10 100 98 75-125 <br /> Zinc 91.9 5.0 100 92 75-125 <br /> Matrix Spike(2101529-MS1) Source:21131232-01 Prepared&Analyzed:02/23/21 <br /> Cadmium 93.2 1.0 mg/kg 100 0.331 93 75-125 <br /> Chromium 120 5.0 100 18.5 102 75-125 <br /> Lead 113 10 100 10.5 102 75-125 <br /> Nickel 101 10 100 ND 101 75-125 <br /> Zinc 126 5.0 100 26.6 99 75-125 <br /> Matrix Spike Dup(2101529-MSD1) Source:21B1232-01 Prepared&Analyzed:02/23/21 <br /> Cadmium 92.2 1.0 mg/kg 100 0.331 92 75-125 1 30 <br /> Chromium 115 5.0 100 18.5 96 75-125 4 30 <br /> Lead 112 10 100 10.5 102 75-125 0.4 30 <br /> Nickel 96.0 10 100 ND 96 75-125 5 30 <br /> Zinc 118 5.0 100 26.6 92 75-125 6 30 <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.californialab.com <br /> Small Business#2916 1 ELAP#1233 1 NAICS#541380 1 CA SWRCB ELAP Accreditation/Registration Number 1233 <br />