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• www.ene dab.com 1N1� � Helena, MY 877- 472 -0711 - Billings, MT 806 -735 -4489 - Casper, WY 888- 235 -0515 <br />sbw 952 Gillette, WY 866 -686 -7175 - Rapid City, SO 886- 672 -1225 - College Station, TX 888 -680 -2218 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 06/11/13 <br />Project: Schwartz GW 05/18/13 S26985 & S26986 Work Order: C13050721 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qua[ <br />Method: E245.1 Analytical Run: CVAA_C203_130529A <br />Sample ID: ICV Initial Calibration Verification Standard 05/29/13 14:51 <br />Mercury 0.00540 mg /L 000010 108 90 110 <br />Method: E245.1 <br />Batch: 37671 <br />Sample ID: MB -37671 <br />Method Blank <br />Run: CVAA C203 130529A <br />05/29/13 15:48 <br />Mercury <br />ND mg /L <br />7E -05 <br />Sample ID: LCS -37671 <br />Laboratory Control Sample <br />Run: CVAA_C203_130529A <br />05/29/13 15:49 <br />Mercury <br />0.00520 mg /L <br />0.00010 <br />104 <br />80 120 <br />Sample ID: C13050721- 001DMS <br />Sample Matrix Spike <br />Run: CVAA_C203_130529A <br />05/29/13 16:08 <br />Mercury <br />0.00515 mg /L <br />0.00010 <br />103 <br />70 130 <br />Sample ID: C13050721- 001DMSD <br />Sample Matrix Spike Duplicate <br />Run: CVAA_C203_130529A <br />05/29/13 16:16 <br />Mercury <br />0.00500 mg /L <br />0.00010 <br />100 <br />70 130 3.0 <br />10 <br />Method: E245.1 <br />Batch: R174153 <br />Sample ID: IPC <br />Instrument Performance Check <br />Sample <br />Run: CVAA_C203_130529A <br />05/29/13 14:54 <br />Mercury <br />0.00517 mg /L <br />0.00010 <br />103 <br />95 105 <br />Qualifiers: <br />RL - Analyte reporting limit. ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration <br />Page 15 of 24 <br />