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140 4 wwrw.etw&eb.com J Helena, Mi 677- 472 -0711 • Billings, MT 800 -735 -4489 • Casper, WY 868 -235 -0515 <br />�- AEI fxce/aaceSka 1831 Gillette, WY 866 -686 -7175 • Rapid City, SD 888 -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 />02/13/13 <br />Project: Schwartz GW 1/24/13 S26788 <br />Work Order: <br />C13010781 <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 - 6199123 <br />Sample ID: ICV <br />Initial Calibration Verification Standard <br />01/30/13 16:23 <br />Phosphorus, Total as P <br />0.238 mg /L <br />0.0050 <br />95 <br />90 <br />110 <br />Method: E365.1 <br />Batch: B68766 <br />Sample ID: MB -68766 <br />Method Blank <br />Run: SUB- B199123 <br />01/30/13 16:24 <br />Phosphorus, Total as P <br />0.003 mg /L <br />0.002 <br />Sample ID: LCS -68766 <br />Laboratory Control Sample <br />Run: SUB - 13199123 <br />01/30/13 16:25 <br />Phosphorus, Total as P <br />0.203 mg /L <br />0.0050 <br />100 <br />90 <br />110 <br />Sample ID: C13010781 -001E <br />Sample Matrix Spike <br />Run: SUB - 6199123 <br />01/30/13 16:38 <br />Phosphorus, Total as P <br />0.418 mg /L <br />0.010 <br />96 <br />90 <br />110 <br />Sample ID: 013010781 -001E <br />Sample Matrix Spike Duplicate <br />Run: SUB - 6199123 <br />01/30/13 16:39 <br />Phosphorus, Total as P <br />0.398 mg /L <br />0.010 <br />91 <br />90 <br />110 4.9 <br />10 <br />Qualifiers: <br />RL - Analyte reporting limit. ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration <br />Page 19 of 24 <br />