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www.errergylab.com Helena, MT 877- 472 -0711 • Billings, MT 800- 735 -4489 • Casper, WY 888- 235 -8515 <br />^ ANAW W6oes*=Skeu IM J Gillette, WY 866 -686 -7175 • Rapid City, SD 88B -672 -1225 • College Station, TX 888 -690 -2218 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Report Date: <br />07/12/13 <br />Schwartz GW 6/18/13 S27005 <br />Work Order: <br />C13060672 <br />(Project: <br />Analyte <br />Count Result Units <br />RL <br />%REC <br />Low Limit High Limit RPD <br />RPDLimit Qual <br />Method: E365.1 <br />Analytical Run: SUB - 8206974 <br />Sample ID: ICV <br />Initial Calibration Verification Standard <br />06/24/13 14:48 <br />Phosphorus, Total as P <br />0.254 mg /L <br />0.0050 <br />102 <br />90 <br />110 <br />Method: E365.1 <br />Batch: B_72265 <br />Sample ID: MB -72265 <br />Method Blank <br />Run: SUB - 13206974 <br />06/24/13 14:49 <br />Phosphorus, Total as P <br />ND mg /L <br />0.004 <br />Sample ID: LCS -72265 <br />Laboratory Control Sample <br />Run: SUB - 6206974 <br />06/24/13 14:50 <br />Phosphorus, Total as P <br />0.206 mg /L <br />0.0050 <br />103 <br />90 <br />110 <br />Sample ID: B13061816- 001AMS <br />Sample Matrix Spike <br />Run: SUB - 13206974 <br />06/24/13 14:58 <br />Phosphorus, Total as P <br />0.312 mg /L <br />0.0050 <br />99 <br />90 <br />110 <br />Sample ID: B13061816- 001AMSD <br />Sample Matrix Spike Duplicate <br />Run: SUB - 13206974 <br />06/24/13 14:59 <br />Phosphorus, Total as P <br />0.318 mg /L <br />0.0050 <br />101 <br />90 <br />110 1.9 <br />10 <br />Qualifiers: <br />RL - Analyte reporting limit. ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration <br />Page 17 of 22 <br />