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wwwenergylab.com ti _4 Helena MT 677472-0711 • Billings, INT 800-735-4489 • Casper, WY 888-235-0515 <br />Auryo>a?F,aca?reasdoa 1Alt SD 888-972-1225 a College Station, Tl(888-680-2218 <br />''WY 866-686-7175 • Rapid City <br /> , <br /> QA/QC Summary Report <br /> Prepared by Ca sper, WY Branch <br /> Report Date: 04/11 /11 <br />Client: Cotter Corporation <br />Project: Schwartz-SW 3/10/2011 S25686-S25688 Work Order: 011030378 <br /> <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br /> Batch: R143647 <br />Method: E200.7 <br />Sample ID: MB-110315A 8 Method Blank Run: ICP2-C_110315A 03/15/11 11:56 <br />Aluminum ND mg/L 0.20 <br />Calcium ND mg/L 0.40 <br />Iron ND mg/L 0.030 <br />Magnesium ND mg/L 0.10 <br />Manganese ND mg/L 0.0050 <br />Potassium ND mg/L 0.10 <br />Sodium ND mg/L 0.60 <br />Zinc ND mg/L 0.0050 <br />Sample ID: LFB-110315A 8 Laboratory Fortified Blank Run: ICP2-C_110315A 03/15/11 12:01 <br />Aluminum 0.900 mg/L 0.10 87 85 115 <br />Calcium 48.1 mg/L 0.50 94 85 115 <br />Iron 0.957 mg/L 0.030 94 85 115 <br />Magnesium 47.3 mg/L 0.50 93 85 115 <br />Manganese 0.956 mg/L 0.010 94 85 115 <br />Potassium 43.5 mg/L 0.50 85 85 115 <br />Sodium 47.7 mg/L 0.50 93 85 115 <br />Zinc 0.948 mg/L 0.010 92 85 115 <br />Sample ID: 011030346-00ICMS2 8 Sample Matrix Spike Run: I CP2-C_110315A 03/15/11 15:37 <br />Aluminum 1.83 mg/L 0.10 87 70 130 <br />Calcium 99.2 mg/L 1.0 92 70 130 <br />Iron 1.91 mg/L 0.030 94 70 130 <br />Magnesium 89.5 mg/L 1.0 88 70 130 <br />Manganese 1.93 mg/L 0.010 95 70 130 <br />Potassium 94.7 mg/L 1.0 81 70 130 <br />Sodium 241 mg/L 1.0 95 70 130 <br />Zinc 1.89 mg/L 0.010 91 70 130 <br />Sample ID: C11030346-001CMSD 8 Sample Matri x Spike Duplicate Run: ICP2- C_110315A 03/15/11 15:41 <br />Aluminum 1.83 mg/L 0.10 88 70 130 0.2 20 <br />Calcium 97.6 mg/L 1.0 91 70 130 1.6 20 <br />Iron 1.85 mg/L 0.030 91 70 130 3.3 20 <br />Magnesium 88.2 mg/L 1.0 86 70 130 1.4 20 <br />Manganese 1.88 mg/L 0.010 92 70 130 2.4 20 <br />Potassium 95.5 mg/L 1.0 82 70 130 0.8 20 <br />Sodium 236 mg/L 1.0 89 70 130 2.4 20 <br />Zinc 1.84 mg/L 0.010 89 70 130 2.7 20 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 12 of 29