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www.ene dab.com ( Helena, W 677 -472 -0711 • Billings, W 808- 135 -4489 • Casper, WY 888- 235 -0515 <br />An"WDcaftoSm IM J Gillette, WY 866- 686 -7175 • Rapid City, SD 868 -672 -1225 • College SWIM, TX 888 -690 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Report Date: <br />02/17/15 <br />Project: Schwartz - GW 1/28/15 S28066, S28069, S28071 <br />Work Order: <br />C15010751 <br />Analyte <br />Count Result Units RL %REC Low Limit <br />High Limit RPD <br />RPDLimit Clual <br />Method: A5310 C <br />Analytical Run: TOC 1- C_150130A <br />Lab ID: ICV -8116 <br />Initial Calibration Verification Standard <br />01/30/15 11:12 <br />Organic Carbon, Total (TOC) <br />9.92 mg /L 0.50 99 90 <br />110 <br />Lab ID: CCV -7923 <br />Continuing Calibration Verification Standard <br />01/30/15 14:07 <br />Organic Carbon, Total (TOC) <br />10.0 mg /L 0.50 100 90 <br />110 <br />Method: A5310 C <br />Lab ID: MBLK <br />Organic Carbon, Total (TOC) <br />Lab ID: C15010741- 003FMS <br />Organic Carbon, Total (TOC) <br />Lab ID: C15010741- 003FMSD <br />Organic Carbon, Total (TOC) <br />Lab ID: LCS -8116 <br />Organic Carbon, Total (TOC) <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />Method Blank <br />ND mg /L <br />Sample Matrix Spike <br />10.6 mg /L <br />Sample Matrix Spike Duplicate <br />10.8 mg /L <br />Laboratory Control Sample <br />10.0 mg /L <br />Batch: R195715 <br />Run: TOC1- C_150130A 01/30/15 11:33 <br />0.04 <br />Run: TOC 1- C_150130A 01/30/15 17:23 <br />0.50 99 85 115 <br />Run: TOC1- C_150130A 01/30/15 17:36 <br />0.50 103 85 115 1.5 10 <br />Run: TOC1- C_150130A 01/30/15 17:47 <br />0.50 100 90 110 <br />ND - Not detected at the reporting limit. <br />Page 7 of 23 <br />