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www.erw6ab.com Helena, MT 877 -472 -0711 a Billings, W 800 - 735 -4489 • Casper, WY 888- 235 -0515 <br />'t1iWpy E=h= Ska' 1152 Gillotte, WY 886 -686 -7175 • Rapid City, SO 888 -672 -1225 - College Station, TX 888 -690 -2218 <br />l <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 06/19/13 <br />(Project: Schwartz GW 5/23/2013 S26999 & S27000 Work Order: 013050906 <br />Analyte Count Result Units RL ° /.REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E365.1 Analytical Run: SUB- B205599 <br />Sample ID: ICV Initial Calibration Verification Standard 05/31/13 16:09 <br />Phosphorus, Total as P 0.241 mg /L 0.0050 96 90 110 <br />Method: E365.1 <br />Batch: B71645 <br />Sample ID: MB -71645 <br />Method Blank <br />Run: SUB- B205599 <br />05/31/13 1610 <br />Phosphorus, Total as P <br />0.005 mg /L <br />0.004 <br />Sample ID: LCS -71645 <br />Laboratory Control Sample <br />Run: SUB- B205599 <br />05/31/13 16:11 <br />Phosphorus, Total as P <br />0.188 mg /L <br />0.0050 <br />92 90 110 <br />Sample ID: B13052250- 001AMS <br />Sample Matrix Spike <br />Run: SUB- B205599 <br />05/31/13 16:41 <br />Phosphorus, Total as P <br />0.297 mg /L <br />0.0050 <br />91 90 110 <br />Sample ID: B13052250- 001AMSD <br />Sample Matrix Spike Duplicate <br />Run: SUB- B205599 <br />05/31/13 16:42 <br />Phosphorus, Total as P <br />0.334 mg /L <br />0.0050 <br />110 90 110 <br />12 10 R <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />R - RPD exceeds advisory limit. <br />Page 18 of 24 <br />