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www.ener&ab.corn t Helena, MT 877- 472 -0711 a Billings, Mi 600 -735 -4489 • Casper, WY 888- 235 -0515 <br />°Q' Since IM J Gillette, WY 866 -606 -1175 • Rapid City, SO 886- 672 -1225 - College Station, TX 888 - 690 -2218 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 07/12/13 <br />Project: Schwartz - GW 06/19/13 S27006 - S27007 Work Order: C13060719 <br />[Analyte Count Result Units RL 01AEC Low Limit High Limit RPD RPDLimit Qual <br />Method: E245.1 Analytical Run: CVAA_C203_130626A <br />Sample ID: ICV Initial Calibration Verification Standard 06/26/13 12:30 <br />Mercury 0.00528 mg /L 0.00010 106 90 110 <br />Method: <br />Sample ID: <br />Mercury <br />E245.1 <br />IPC <br />Instrument Performance Check Sample <br />0.00515 mg /L 0.00010 <br />103 <br />Run: CVAA_C203_130626A <br />95 105 <br />Batch: 130626A <br />06/26/13 12:34 <br />Method: <br />E245.1 <br />Batch: 37991 <br />Sample ID: <br />MB -37991 <br />Method Blank <br />Run: CVAA_C203_130626A <br />06/26/13 12:38 <br />Mercury <br />ND mg /L <br />7E -05 <br />Sample ID: <br />LCS -37991 <br />Laboratory Control Sample <br />Run: CVAA_C203_130626A <br />06/26/13 12:40 <br />Mercury <br />0.00532 mg /L <br />0.00010 <br />106 <br />85 115 <br />Sample ID: <br />C13060672 -001 DMS <br />Sample Matrix Spike <br />Run: CVAA_C203_130626A <br />06/26/13 13:09 <br />Mercury <br />0.00616 mg /L <br />0.00015 <br />123 <br />70 130 <br />Sample ID: <br />C13060672 -001 DMSD <br />Sample Matrix Spike Duplicate <br />Run: CVAA_C203_130626A <br />06/26/13 13:11 <br />Mercury <br />0.00594 mg /L <br />0.00015 <br />119 <br />70 130 3.6 <br />10 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 14 of 23 <br />