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._..... ....... ---.._..__.._.._........... -....... _........ .._._...._..._ ................................._._.._..__...... <br />svvRn.energylab.cam Helena, MT 877-472-0711 1, Billings, MT 800-735-4489 « Casper, WY 888-235-0515 <br />Ana KulErcallenceSince 1932 j Gillette, WY 865.686-7175 * Rapid City, SO 888-672-1225 * College Station, TX 888-690-2218 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 01/05/11 <br />Project: Schwartzwalder Mine Monitoring Program-Surface Wat Work Order: C10110787 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E365.1 <br />Sample ID: ICV <br />Phosphorus, Total as P <br />Initial Calibration Verification Standard <br />0.243 mg/L 0.0050 <br /> <br />97 <br /> <br />90 110 Analytical Run: SUB-6157769 <br />11/29/10 14:22 <br />Method: E365.1 Batch: B50678 <br />Sample ID: MB-50678 Method Blank Run: SUB-8157769 11/29/10 14:56 <br />Phosphorus, Total as P 0.004 mg/L 0.003 <br />Sample ID: LFB-50678 Laboratory Fortified Blank Run: SUB-8157769 11129/10 14:57 <br />Phosphorus, Total as P 0.197 mg/L 0,0050 97 90 110 <br />Sample ID: C10110787-002G Sample Matrix Spike Run: SUB-6157769 11129/10 14:59 <br />Phosphorus, Total as P 0.194 mg/L 0.0050 97 90 110 <br />Sample ID: C10110787-002G Sample Matrix Spike Duplicate Run: SUB-6157769 11/29/10 15:00 <br />Phosphorus, Total as P 0.195 mg/L 0.0050 98 90 110 0.5 10 <br />Qualifiers: <br />RL - Analyte reporting limit ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration <br />Page 21 of 30