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wwwener&b.com � J Helena, W 877-472 -0711 - Billings, W 600 - 135-4169 - Casper, WY 888- 235 -6515 <br />'tW Gillette, wy 886 -666 -7175 - Rapid City, SD $86 -672 -1225 • College Station, T% 888 - 690 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 02/26/14 <br />Project: Schwartz - GW 2/5/14 S27350 Work Order: 014020159 <br />FAnalyte Count Result Units RL 0/J9EC Low Limit High Limit RPD RPDLimit Qual <br />Method: E245.1 Analytical Run: CVAA_C203_140207A <br />Sample ID: ICV Initial Calibration Verification Standard 02/07/14 15:13 <br />Mercury 0.00454 mg /L 0.00010 91 90 110 <br />Method: <br />E245.1 <br />Batch: 140207A <br />Sample ID: <br />IPC <br />Instrument Performance Check Sample <br />Run: CVAA_C203_140207A <br />02/07/14 15:17 <br />Mercury <br />0.00507 mg /L <br />0.00010 <br />101 <br />95 105 <br />Method: <br />E245.1 <br />Batch: 40571 <br />Sample ID: <br />MB -40571 <br />Method Blank <br />Run: CVAA C203 140207A <br />02/07/14 15:20 <br />Mercury <br />ND mg /L <br />7E -05 <br />Sample ID: <br />LCS -40571 <br />Laboratory Control Sample <br />Run: CVAA_C203_140207A <br />02/07/14 15:26 <br />Mercury <br />0.00459 mg /L <br />0.00010 <br />92 <br />80 120 <br />Sample ID: <br />C14020109 -001 DMS <br />Sample Matrix Spike <br />Run- CVAA_C203_140207A <br />02/07/14 15:51 <br />Mercury <br />0.00504 mg /L <br />0.00010 <br />101 <br />70 130 <br />Sample ID: <br />C14020109 -001 DMSD <br />Sample Matrix Spike Duplicate <br />Run: CVAA_C203_140207A <br />02/07/14 15:53 <br />Mercury <br />0.00537 mg /L <br />0.00010 <br />107 <br />70 130 6.3 <br />10 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 12 of 20 <br />