2011-05-11_HYDROLOGY - M1977300 (5)

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www.e eWa,b.com ' 77-472-0711 - Billings, W' 060-135-4489 a Casper,WY888-235-0513 Am*" Slow Im Rapid City, SD 888-672-1225 - College Station, TX 888-610-2218 QA/QC Summary Report Prepared by Casper, WY Branch Client: Cotter Corporation Report Date: 04/11 /11 Project: Schwartz-SW 3/10/2011 S25686-S25688 Work Order: C11030378 Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Clual Method: E200.7 Batch: R143647 Sample ID: MB-110315A 8 Method Blank Run: ICP2-C_110315A 03/15/11 11:56 Aluminum ND mg/L 0.20 Calcium ND mg/L 0.40 Iron ND mg/L 0.030 Magnesium ND mg/L 0.10 Manganese ND mg/L 0.0050 Potassium ND mg/L 0.10 Sodium ND mg/L 0.60 Zinc ND mg/L 0.0050 Sample ID: LFB-110315A 8 Laboratory Fort ified Blank Run: ICP2-C_110315A 03/15/11 12:01 Aluminum 0.900 mg/L 0.10 87 85 115 Calcium 48.1 mg/L 0.50 94 85 115 Iron 0.957 mg/L 0.030 94 85 115 Magnesium 47.3 mg/L 0.50 93 85 115 Manganese 0.956 mg/L 0.010 94 85 115 Potassium 43.5 mg/L 0.50 85 85 115 Sodium 47.7 mg/L 0.50 93 85 115 Zinc 0.948 mg/L 0.010 92 85 115 Sample ID: C11030346-001CMS2 8 Sample Matrix Spike Run: ICP2-C_110315A 03/15/11 15:37 Aluminum 1.83 mg/L 0.10 87 70 130 Calcium 99.2 mg/L 1.0 92 70 130 Iron 1.91 mg/L 0.030 94 70 130 Magnesium 89.5 mg/L 1.0 88 70 130 Manganese 1.93 mg/L 0.010 95 70 130 Potassium 94.7 mg/L 1.0 81 70 130 Sodium 241 mg/L 1.0 95 70 130 Zinc 1.89 mg/L 0.010 91 70 130 Sample ID: C11030346-001CMSD 8 Sample Matrix Spike Duplicate Run: ICP2-C_110315A 03/15/11 15:41 Aluminum 1.83 mg/L 0.10 88 70 130 0.2 20 Calcium 97.6 mg/L 1.0 91 70 130 1.6 20 Iron 1.85 mg/L 0.030 91 70 130 3.3 20 Magnesium 88.2 mg/L 1.0 86 70 130 1.4 20 Manganese 1.88 mg/L 0.010 92 70 130 2.4 20 Potassium 95.5 mg/L 1.0 82 70 130 0.8 20 Sodium 236 mg/L 1.0 89 70 130 2.4 20 Zinc 1.84 mg/L 0.010 89 70 130 2.7 20 Qualifiers: RL - Analyte reporting limit. ND - Not detected at the reporting limit. MDC - Minimum detectable concentration Page 12 of 29