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• - www.ene &sb.com Helena, MT 677- 472 -0711 • Billings, W 600- 735 -4489 • Casper, WY 888 - 235 -6515 <br />a/ ftmiftim saw ti Gillette, WY 866- 686 -7175 • Rapid City, SO 886- 672 -1225 • College Station, TX 888 -690 -2218 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 09/05/13 <br />Project: Schwartz SW 8/6/13 S27019 Work Order: 013080305 <br />F nalyte Count Result Units RL ° /.REC Low Limit High Limit RPD RPDLimit Qual <br />Method: A4500 -F C Analytical Run: MANTECH_130808A <br />Sample ID: CCV -7366 Continuing Calibration Verification Standard 08/08/13 13:26 <br />Fluoride 1.04 mg /L 0.10 104 90 110 <br />Method: <br />A4500 -F C <br />Sample ID: <br />MBLK <br />Fluoride <br />Sample ID: <br />LCS -7572 <br />Fluoride <br />Sample ID: <br />C13080305- 001AMS <br />Fluoride <br />Sample ID: <br />C13080305- 001AMSD <br />Fluoride <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />Method Blank <br />0.01 mg /L <br />Laboratory Control Sample <br />2.00 mg /L <br />Sample Matrix Spike <br />2.29 mg /L <br />Sample Matrix Spike Duplicate <br />2.29 mg /L <br />Run: MANTECH_130808A <br />0.005 <br />Run: MANTECH_130808A <br />0.10 100 90 110 <br />Run- MANTECH_130808A <br />0.10 100 80 120 <br />Run: MANTECH_130808A <br />0.10 100 80 120 <br />ND - Not detected at the reporting limit. <br />Batch: R176870 <br />08/08/13 09:59 <br />08/08/13 10.02 <br />08/08/13 13:43 <br />08/08/13 13:53 <br />0.0 10 <br />Page 8 of 25 <br />