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• www.enerdab.com Helena, Wr 677472 -0711 • Billings, MY 000- 7354469 • Casper, WY 888- 235 -0515 <br />Gillette, WY 866 -606 -7175 • Rapid City, SD 886 -672 -1225 • College Station, TX 888 -660 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Project: Schwartz SW 9/5/13 S27130 <br />Analyte Count Result Units <br />Method: A4500 -F C <br />Report Date: 10/02/13 <br />Work Order: 013090203 <br />RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Analytical Run: MANTECH_130909B <br />Sample ID: CCV -7366 Continuing Calibration Verification Standard 09/09/13 09:51 <br />Fluoride 1.04 mg /L 0.10 104 90 110 <br />Method: A4500 -F C <br />Sample ID: MBLK <br />Method Blank <br />Fluoride <br />0.01 mg /L <br />Sample ID: LCS -7572 <br />Laboratory Control Sample <br />Fluoride <br />2.04 mg /L <br />Sample ID: C13090202- 005AMS <br />Sample Matrix Spike <br />Fluoride <br />2.57 mg /L <br />Sample ID: C13090202- 005AMSD <br />Sample Matrix Spike Duplicate <br />Fluoride <br />2.57 mg /L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 8 of 25 <br />Batch: R178045 <br />Run: <br />MANTECH <br />130909B <br />09/09/13 08:57 <br />0.005 <br />Run: <br />MANTECH <br />130909B <br />09/09/13 09:04 <br />0.10 <br />102 <br />90 <br />110 <br />Run: <br />MANTECH <br />130909B <br />09/09/13 10:05 <br />0.10 <br />102 <br />80 <br />120 <br />Run: <br />MANTECH <br />130909B <br />09/09/13 10:09 <br />010 <br />102 <br />80 <br />120 0.0 <br />10 <br />ND - Not detected at the reporting limit. <br />Page 8 of 25 <br />