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ENERGY <br />L.AE3O RATORI ES <br />Client: Cotter Corporation <br />www.energylab.com <br />Analytical Excellence Sine 7832 <br />Helena, Mr 877- 472 -0711 • Billings, MT 800- 735 -4489 • Casper, WY 888- 235 -0515 <br />Gillette, WY 866 - 686 - 7175 • Rapid City, SD 888 612 - 1225 • College Station, TX 888 - 690 - 2218 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Report Date: 09/25/12 <br />Project: Schwartz GW 8/9/2012 S26555 Work Order: C12080487 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLImit Qual <br />Method: E245.1 Analytical Run: CVAA_C203_120817A <br />Sample ID: ICV Initial Calibration Verification Standard 08/17/12 06:42 <br />Mercury 0.00462 mg /L 0.00010 92 90 110 <br />Sample ID: CCV1 Continuing Calibration Verification Standard 08/17/12 06:48 <br />Mercury 0.00508 mg /L 0.00010 102 95 105 <br />Method: E245.1 <br />Sample ID: MB -34689 Method Blank <br />Mercury ND mg /L 3E -05 <br />Sample ID: LCS -34689 Laboratory Control Sample Run: CVAA_C203_120817A 08/17/12 06:53 <br />Mercury 0.00528 mg /L 0.00010 106 85 115 <br />Sample ID: C12080464- 001DMS Sample Matrix Spike <br />Mercury <br />Sample ID: C12080464 -001 DMSD Sample Matrix Spike Duplicate Run: CVAA_C203_120817A 08/17/12 06:57 <br />Mercury 0.00500 mg /L 0.00010 100 70 130 2.0 10 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />Run: CVAA_C203_120817A <br />0.00491 mg /L 0.00010 98 70 130 <br />Run: CVAA_C203_120817A 08/17/12 06:55 <br />ND - Not detected at the reporting limit. <br />Page 11 of 19 <br />Batch: 34689 <br />08/17/12 06:51 <br />