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\ i www.ma4ab.com � Helena, MT 877-472 -0711 - Billings, MT 608- 735 -4489 • Casper, WY 888- 235 -0515 <br />Aea "E=Mma Sk"'JU Gillette, WY 866 -686 -7175 - Rapid City, SD 886 -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 />07/08/13 <br />Project: Schwartz SW 6/5/2013 S26940 <br />Work Order: <br />C13060211 <br />Analyte <br />Count Result Units <br />RL <br />° /.REC <br />Low Limit High Limit RPD <br />RPDLimit Qual <br />Method: <br />A4500 -F C <br />Analytical Run: MANTECH_130607A <br />Sample ID: <br />CCV -7366 <br />Continuing Calibration Verification Standard <br />06/07/13 09:52 <br />Fluoride <br />1.06 mg /L <br />0.10 <br />106 <br />90 110 <br />Method: <br />A4500 -F C <br />Batch: R174531 <br />Sample ID: <br />MBLK <br />Method Blank <br />Run: MANTECH_130607A <br />06/07/13 08:28 <br />Fluoride <br />0.01 mg /L <br />0.005 <br />Sample ID: <br />LCS -7460 <br />Laboratory Control Sample <br />Run: MANTECH_130607A <br />06/07/13 08:31 <br />Fluoride <br />2.04 mg /L <br />0.10 <br />102 <br />90 110 <br />Sample ID: <br />C13060216 -001 AMS <br />Sample Matrix Spike <br />Run: MANTECH_130607A <br />06/07/13 11:12 <br />Fluoride <br />2.29 mg /L <br />0.10 <br />99 <br />80 120 <br />Sample ID: <br />C13060216- 001AMSD <br />Sample Matrix Spike Duplicate <br />Run: MANTECH_130607A <br />06/07/13 11:26 <br />Fluoride <br />2.29 mg /L <br />0.10 <br />99 <br />80 120 0.0 <br />10 <br />Qualifiers: <br />RL - Analyte reporting limit. ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration <br />Page 8 of 27 <br />