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www.�ergylab.com Helena, MT 677- 472 -0711 • Billings, MT 800 - 735 -4489 • Casper, WY 888- 235 -0515 <br />f Sb' IJ52 Gillette, WY 866 -666 -7175 • Rapid City, SD 888 -672 -1225 • College Station, TX 888 -690 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Report Date: <br />09/30/14 <br />Project: Schwartz -GW 9/16/14 S27663 <br />Work Order: <br />C14090659 <br />Analyte <br />Count Result Units RL %REC Low Limit <br />High Limit RPD <br />RPDLimit Qual <br />Method: A5310 C <br />Organic Carbon, Total (TOC) <br />Analytical Run: TOC3- C_140917A <br />Lab ID: ICV -8116 <br />Initial Calibration Verification Standard <br />Organic Carbon, Total (TOC) <br />09/17/14 09:58 <br />Organic Carbon, Total (TOC) <br />10.1 mg /L 0.50 101 90 <br />110 <br />Lab ID: CCV -7923 <br />Continuing Calibration Verification Standard <br />09/17/14 19:07 <br />Organic Carbon, Total (TOC) <br />9.88 mg /L 0.50 99 90 <br />110 <br />Method: A5310 C <br />Lab ID: MBLK <br />Method Blank <br />Organic Carbon, Total (TOC) <br />0.05 mg /L <br />Lab ID: LCS -8116 <br />Laboratory Control Sample <br />Organic Carbon, Total (TOC) <br />10.0 mg /L <br />Lab ID: 014090671- 002EMS <br />Sample Matrix Spike <br />Organic Carbon, Total (TOC) <br />39.7 mg /L <br />Lab ID: 014090671- 002EMSD <br />Sample Matrix Spike Duplicate <br />Organic Carbon, Total (TOC) <br />40.1 mg /L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />Run: TOC3 -C 140917A <br />0.03 <br />Run: TOC3- C_140917A <br />0.50 100 90 110 <br />Run: TOC3- C_140917A <br />0.50 103 85 115 <br />Run: TOC3- C_140917A <br />0.50 105 85 115 <br />ND - Not detected at the reporting limit. <br />6911 <br />Batch: R191242 <br />09/17/14 09:39 <br />09/17/14 18:52 <br />09/18/14 00:09 <br />09/18/14 00:26 <br />10 <br />Page 4 of 13 <br />