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ENERGY <br />LABORATORIES <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />www.energylab.com <br />Analytical Excellence Slncs 1832 <br />Client: Cotter Corporation <br />Project: Schwartz GW 9/26/2012 S26569 <br />Helena, MT 877- 472 -0711 • Billings, MT 800 -735 -4489 • Casper, WY 888- 235 -0515 <br />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 />Revised Date: 10/26/12 <br />Report Date: 10/22/12 <br />Work Order: C12091083 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E245.1 Analytical Run: CVAA_C203_121003A <br />Sample ID: ICV Initial Calibration Verification Standard 10/03/12 08:01 <br />Mercury 0.00504 mg /L 0.00010 101 90 110 <br />Sample ID: CCV1 Continuing Calibration Verification Standard 10/03/12 08:03 <br />Mercury 0.00511 mg /L 0.00010 102 95 105 <br />Method: E245.1 Batch: 35240 <br />Sample ID: MB -35240 Method Blank Run: CVAA_C203_121003A 10/03/12 08:06 <br />Mercury ND mg /L 3E -05 <br />Sample ID: LCS -35240 Laboratory Control Sample Run: CVAA_C203_121003A 10/03/12 08:07 <br />Mercury 0 00498 mg /L 0.00010 100 85 115 <br />Sample ID: C12091080- 005CMS Sample Matrix Spike Run: CVAA_C203_121003A 10/03/12 08:23 <br />Mercury 0.00495 mg /L 0.00010 99 70 130 <br />Sample ID: C12091080- 005CMSD Sample Matrix Spike Duplicate Run: CVAA_C203_121003A 10/03/12 08:24 <br />Mercury 0.00496 mg /L 0.00010 99 70 130 0.3 10 <br />ND - Not detected at the reporting limit. <br />Page 13 of 21 <br />