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•. www.erwgylab.com Helena, MT 877472 -0711 • Billings, MT 801 - 735-4489 • Casper, WY 888- 235 -0515 <br />Sm 1st Gillette, WY 866 -686 -7175 • Rapid City, SD 886 - 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: 02/02/15 <br />Project: Schwartz GW 1/14/15 S28103, S28106, S28107 Work Order: C15010389 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit oual <br />Method: E365.1 Analytical Run: SUB - 6237121 <br />Lab ID: ICV Initial Calibration Verification Standard 01/22/15 10:21 <br />Phosphorus, Total as P 0.232 mg /L 0.0050 93 90 110 <br />Method: E365.1 <br />Batch: B86345 <br />Lab ID: MB -86345 <br />Method Blank <br />Run: SUB - 6237121 <br />01/22/15 10:25 <br />Phosphorus, Total as P <br />ND mg /L <br />0.005 <br />Lab ID: LCS -86345 <br />Laboratory Control Sample <br />Run: SUB- B237121 <br />01/22/15 10:26 <br />Phosphorus, Total as P <br />0.181 mg /L <br />0.0050 <br />90 <br />90 <br />110 <br />Lab ID: B15011108- 001CMS <br />Sample Matrix Spike <br />Run: SUB- B237121 <br />01/22/15 10:28 <br />Phosphorus, Total as P <br />0.191 mg /L <br />0.0050 <br />92 <br />90 <br />110 <br />Lab ID: B15011108- 001CMSD <br />Sample Matrix Spike Duplicate <br />Run: SUB- B237121 <br />01/22/15 10:29 <br />Phosphorus, Total as P <br />0.188 mg /L <br />0.0050 <br />90 <br />90 <br />110 <br />1.6 10 <br />Lab ID: B15011145- 001FMS <br />Sample Matrix Spike <br />Run: SUB - 6237121 <br />01/22/15 10:46 <br />Phosphorus, Total as P <br />0.295 mg /L <br />0.0050 <br />97 <br />90 <br />110 <br />Lab ID: B15011145- 001FMSD <br />Sample Matrix Spike Duplicate <br />Run: SUB - 13237121 <br />01/22/15 10:47 <br />Phosphorus, Total as P <br />0.302 mg /L <br />0.0050 <br />100 <br />90 <br />110 <br />2.3 10 <br />Qualifiers: <br />RL - Analyte reporting limit. ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration <br />Page 12 of 19 <br />