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WWWeeergglab.com Helena, Wr 877472 -0711 • Billings, MT 800 - 7354489 • Casper, WY 888- 235 -0515 <br />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 <br />Project: Schwartz SW 9/5/13 S27130 <br />Analyte Count Result Units <br />RL <br />Report Date: <br />Work Order: <br />%REC Low Limit High Limit RPD <br />10/02/13 <br />C13090203 <br />RPDLimit Qual <br />Method: E365.1 <br />Analytical Run. SUB - 13211896 <br />Sample ID: ICV <br />Initial Calibration Verification Standard <br />09/19/13 09:09 <br />Phosphorus, Total as P <br />0.258 mg /L <br />0.0050 <br />103 90 110 <br />Method: E365.1 <br />Batch: B74438 <br />Sample ID: MB -74438 <br />Method Blank <br />Run: SUB - 13211896 <br />09/19/13 14:57 <br />Phosphorus, Total as P <br />ND mg /L <br />0.004 <br />Sample ID: LCS -74438 <br />Laboratory Control Sample <br />Run- SUB - 6211896 <br />09/19/13 15:00 <br />Phosphorus, Total as P <br />0.206 mg /L <br />0.0050 <br />103 90 110 <br />Sample ID: B13090800- 001BMS <br />Sample Matrix Spike <br />Run: SUB - 6211896 <br />09/19/13 15:14 <br />Phosphorus, Total as P <br />3.49 mg /L <br />0.025 <br />84 90 110 <br />S <br />Sample ID: B13090800- 001BMSD <br />Sample Matrix Spike Duplicate <br />Run: SUB - 6211896 <br />09/19/13 15:15 <br />Phosphorus, Total as P <br />3.60 mg /L <br />0.025 <br />94 90 110 3.0 <br />10 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />S - Spike recovery outside of advisory limits. <br />Page 19 of 25 <br />