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www.energyiab.com Helena, MT 877-472-0711 Billings MT 800.735-4489 Casper, WY 888-235-0515 <br />- Ara"calExcetlenroNnrr 1931 Gillette, WY 866.686-7175 a Rapid City, S0 888-672-1225 a College Station, TX 888.690.2218 <br />QA/QC Summary Report <br />Client: Cotter Corporation Report Date: 12/09/10 <br />Project: Schwartzwalder Wa ter Sampling Program-Ground Water Work Order: C10110027 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLImit Quai <br />Method: E365.1 Analytical Run: SUB-6156845 <br />Sample ID: ICV Initial Calibration Verification Standard 11/08110 14:43 <br />Phosphorus, Total as P 0.239 mg/L 0.0050 96 90 110 <br />Method: E365.1 Batch: B_50299 <br />Sample ID: MB-50299 Method Blank Run: SUB-13156845 11/08'10 14:46 <br />Phosphorus, Total as P ND mg/L 0.003 <br />Sample ID: LFB-50299 Laboratory Fortified Blank Run: SUB-13156845 11/08/10 14:47 <br />Phosphorus, Total as P 0.198 mg/L 0.0050 99 90 110 <br />Sample ID: C10110027-001G Sample Matrix Spike Run: SUB-8156845 11108/10 14:51 <br />Phosphorus, Total as P 0.193 mg/L 0.0050 97 90 110 <br />Sample ID: C10110027-OOIG Sample Matrix Spike Duplicate Run: SUB-8156845 11/08/10 14:52 <br />Phosphorus, Total as P 0.201 mg/L 0.0050 100 90 110 4.1 10 <br />Qualifiers: <br />RL - Analyte reporting limit. ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration <br />Page 18 of 26