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- www.wwgfsb.com Helena, MT 877472 -0711 • Billings, W 800 -735 -4489 a Casper, WY 880- 235 -8515 <br />Aearyu*EnalloaSim 1052 Gillette, WY 866 -686 -7175 • Rapid City, SD 886- 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: 07/16/13 <br />Project: Schwartz GW 6/23/13 S26948 Work Order: 013060891 <br />FAnalyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E245.1 Analytical Run: CVAA_C203_130627A <br />Sample ID: ICV Initial Calibration Verification Standard 06/27/13 14:36 <br />Mercury 0.00493 mg /L 0.00010 99 90 110 <br />Method: <br />E245.1 <br />Batch: 130627A <br />Sample ID: <br />IPC <br />Instrument Performance Check Sample <br />Run: CVAA_C203_130627A <br />06/27/13 14:39 <br />Mercury <br />0.00499 mg /L <br />0.00010 <br />100 <br />95 105 <br />Method: <br />E245.1 <br />Batch: 38034 <br />Sample ID: <br />MB -38034 <br />Method Blank <br />Run: CVAA_C203_130627A <br />06/27/13 14:43 <br />Mercury <br />ND mg /L <br />7E -05 <br />Sample ID: <br />LCS -38034 <br />Laboratory Control Sample <br />Run: CVAA_C203_130627A <br />06/27/13 14:45 <br />Mercury <br />0.00556 mg /L <br />0.00010 <br />111 <br />85 115 <br />Sample ID: <br />C13060891- 001DMS <br />Sample Matrix Spike <br />Run: CVAA_C203_130627A <br />06/27/13 14:48 <br />Mercury <br />0.00507 mg /L <br />0.00010 <br />101 <br />70 130 <br />Sample ID: <br />013060891- 001DMSD <br />Sample Matrix Spike Duplicate <br />Run: CVAA_C203_130627A <br />06/27/13 14:50 <br />Mercury <br />0.00502 mg /L <br />0.00010 <br />100 <br />70 130 1.1 <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 />