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www.ene dab.com <br />J Helena, MT 577-472-0711 • Billings, MT 800- 735 -4489 • Gasper, WY 888- 235 -0515 <br />Gillette, WY 866 -686 -7175 • Rapid City, So 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: 09/30/14 <br />Project: Schwartz -SW 9/4/14 S27661 Work Order: C14090226 <br />I <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E245.1 Analytical Run: CVAA_C203_140911A <br />Lab ID: ICV Initial Calibration Verification Standard 09/11/14 14:43 <br />Mercury 0.00550 mg /L 0.00010 110 90 110 <br />Method: <br />E245.1 <br />Batch: 140911 A <br />Lab ID: <br />IPC <br />Instrument Performance Check <br />Sample <br />Run: CVAA_C203_140911A <br />09/11/14 14:48 <br />Mercury <br />0.00476 mg /L <br />0.00010 <br />95 <br />95 105 <br />Method: <br />E245.1 <br />Batch: 42576 <br />Lab ID: <br />MB -42576 <br />Method Blank <br />Run: CVAA C203 140911A <br />09/11/14 14:50 <br />Mercury <br />ND mg /L <br />2E -05 <br />Lab ID: <br />LCS -42576 <br />Laboratory Control Sample <br />Run: CVAA_C203_140911A <br />09/11/14 14:52 <br />Mercury <br />0.00495 mg /L <br />0.00010 <br />99 <br />85 115 <br />Lab ID: <br />C14090226- 001DMS <br />Sample Matrix Spike <br />Run: CVAA_C203_140911A <br />09/11/14 15:18 <br />Mercury <br />0.00491 mg /L <br />0.00010 <br />98 <br />75 125 <br />Lab ID: <br />C14090226- 001DMSD <br />Sample Matrix Spike Duplicate <br />Run: CVAA_C203_140911A <br />09/11/14 15:24 <br />Mercury <br />0.00527 mg /L <br />0.00010 <br />105 <br />75 125 7.0 <br />20 <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 />