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• ZA VA ww-ener6ati.corri Helena, MT 877- 472 -0711 - Billings, MT 600 - 735 -4469 • Casper, WY 088 -235 -0515 <br />} Slow IM Gillette, WY 866 - 686 -7175 *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: 06/06/13 <br />Project: Schwartz SW 05/08/13 S26872 Work Order: C13050363 <br />Analyte Count Result Units RL ° /.REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E245.1 Analytical Run: CVAA_C203_130514A <br />Sample ID: ICV Initial Calibration Verification Standard 05/14/13 12:18 <br />Mercury 0.00499 mg /L 000010 100 90 110 <br />Method: <br />E245.1 <br />Batch: 37484 <br />Sample ID: <br />MB -37484 <br />Method Blank <br />Run: CVAA C203 130514A <br />05/14/13 12:24 <br />Mercury <br />ND mg /L <br />7E -05 <br />Sample ID: <br />LCS -37484 <br />Laboratory Control Sample <br />Run: CVAA_C203_130514A <br />05/14/13 12:26 <br />Mercury <br />0.00532 mg /L <br />0.00010 <br />106 <br />85 115 <br />Sample ID: <br />C13050351- 001BMS <br />Sample Matrix Spike <br />Run: CVAA_C203_130514A <br />05/14/13 12:29 <br />Mercury <br />0.00499 mg /L <br />000010 <br />100 <br />70 130 <br />Sample ID: <br />C13050351- 001BMSD <br />Sample Matrix Spike Duplicate <br />Run: CVAA_C203_130514A <br />05/14/13 12:31 <br />Mercury <br />0.00511 mg /L <br />0.00010 <br />102 <br />70 130 2.4 <br />10 <br />Method: <br />E245.1 <br />Batch: R173559 <br />Sample ID: <br />IPC <br />Instrument Performance Check Sample <br />Run: CVAA_C203_130514A <br />05/14/13 12:21 <br />Mercury <br />0.00502 mg /L <br />0.00010 <br />100 <br />95 105 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit <br />Page 17 of 26 <br />