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\ • www.ene 6ab.com � Helena, MT 877-472 -0711 • Billings, MT 808- 735 -4489 • Casper, WY 888- 235 -0515 <br />��EW'6' �' y� Gillette, WY 866 -606 -7175 • Rapid City, SD 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: 08/20/13 <br />Project: Schwartz GW 07/17/13 S27046 - S27047 Work Order: C13070682 <br />FAnalyte Count Result Units RL ° /aREC Low Limit High Limit RPD RPDLimit Qual <br />Method: E245.1 Analytical Run: CVAA_C203_130724A <br />Sample ID: ICV Initial Calibration Verification Standard 07/24/13 15:31 <br />Mercury 0.00464 mg /L 0.00010 93 90 110 <br />Method: <br />Sample ID: <br />Mercury <br />E245.1 <br />IPC <br />Instrument Performance Check Sample <br />0.00524 mg /L 0.00010 <br />105 <br />Run: CVAA_C203_130724A <br />95 105 <br />Batch:130724AAA <br />07/24/13 15:34 <br />Method: <br />E245.1 <br />Batch: 38416 <br />Sample ID: <br />MB -38416 <br />Method Blank <br />Run: CVAA C203 130724A <br />07/24/13 15:50 <br />Mercury <br />ND mg /L <br />7E -05 <br />Sample ID: <br />LCS -38416 <br />Laboratory Control Sample <br />Run: CVAA_C203_130724A <br />07/24/13 15:51 <br />Mercury <br />0.00486 mg /L <br />0.00010 <br />97 <br />85 115 <br />Sample ID: <br />C13070726- 004CMS <br />Sample Matrix Spike <br />Run: CVAA_C203_130724A <br />07/24/13 16:07 <br />Mercury <br />0.00481 mg /L <br />0.00010 <br />96 <br />70 130 <br />Sample ID: <br />013070726- 004CMSD <br />Sample Matrix Spike Duplicate <br />Run: CVAA_C203_130724A <br />07/24/13 16:12 <br />Mercury <br />0.00489 mg /L <br />0.00010 <br />98 <br />70 130 1.5 <br />10 <br />Qualifiers: <br />RL - Analyte reporting limit. ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration <br />Page 14 of 24 <br />