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• www.en &48b.com �� Helena, MT 877- 472 -0711 • Billings, MT 800- 735 -4488 • Casper, WY 888- 235 -8515 <br />f sou yl52 Gillette, WY 866 -686 -7175 • Rapid City, SO 888- 672 -1225 • College Station, T% 888 -680 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Project: Schwartz -GW 12/11/13 S27332 <br />Analyte Count Result Units <br />Report Date: 01/08/14 <br />Work Order: C13120406 <br />RL ° /aREC Low Limit High Limit RPD RPDLimit Qual <br />Method: A5310 C Analytical Run: TOC1- C_131212A <br />Sample ID: ICV -7684 Initial Calibration Verification Standard 12/12/13 08:53 <br />Organic Carbon, Total (TOC) 10.2 mg /L 0.50 102 90 110 <br />Sample ID: CCV -7343 Continuing Calibration Verification Standard 12/12/13 14:58 <br />Organic Carbon, Total (TOC) 10.2 mg /L 0.50 102 90 110 <br />Method: A5310 C <br />Run: TOC1 -C 131212A <br />Sample ID: MBLK <br />Method Blank <br />Organic Carbon, Total (TOC) <br />ND mg /L <br />Sample ID: LCS -7684 <br />Laboratory Control Sample <br />Organic Carbon, Total (TOC) <br />10.2 mg /L <br />Sample ID: C13120388- 001AMS <br />Sample Matrix Spike <br />Organic Carbon, Total (TOC) <br />7.67 mg /L <br />Sample ID: C13120388- 001AMSD <br />Sample Matrix Spike Duplicate <br />Organic Carbon, Total (TOC) <br />7.64 mg /L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Batch: R181686 <br />12/12/13 09:17 <br />12/12/13 14:47 <br />12/12/13 16:54 <br />12/13/13 05:14 <br />0.4 10 <br />Page 4 of 14 <br />Run: TOC1 -C 131212A <br />0.03 <br />Run: TOC1 -C-1 31212A <br />0.50 <br />102 90 110 <br />Run: TOC 1 -C-1 31212A <br />0.50 <br />104 85 115 <br />Run: TOC 1- C_131212A <br />0.50 <br />103 85 115 <br />ND - Not detected at the reporting limit. <br />Batch: R181686 <br />12/12/13 09:17 <br />12/12/13 14:47 <br />12/12/13 16:54 <br />12/13/13 05:14 <br />0.4 10 <br />Page 4 of 14 <br />