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• - www.ene dab.com Helena, W 877- 472 -0711 • Billings, MY 800 - 735 -4489 • Casper, WY 888 - 235 -0515 <br />LEW AuWal Ecaft= S+bu 1957 Gillette, WY 866 -606 -7175 • Rapid City, SD 808 -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: 09/30/14 <br />Project: Schwartz -SW 9/4/14 S27661 Work Order: C14090226 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: A4500 -F C Analytical Run: MANTECH_140908A <br />Lab ID: CCV -7863 Continuing Calibration Verification Standard 09/08/14 13:18 <br />Fluoride 1.96 mg /L 0.10 98 90 110 <br />Method: <br />A4500 -F C <br />Batch: R190801 <br />Lab ID: <br />MBLK <br />Method Blank <br />Run: MANTECH 140908A <br />09/08/14 11:54 <br />Fluoride <br />ND mg /L <br />0.01 <br />Lab ID: <br />LCS -8011 <br />Laboratory Control Sample <br />Run: MANTECH_140908A <br />09/08/14 11:57 <br />Fluoride <br />2.04 mg /L <br />0.10 <br />102 90 110 <br />Lab ID: <br />014090220- 003AMS <br />Sample Matrix Spike <br />Run: MANTECH_140908A <br />09/08/14 13:26 <br />Fluoride <br />2.20 mg /L <br />0.10 <br />94 80 120 <br />Lab ID: <br />C14090220- 003AMSD <br />Sample Matrix Spike Duplicate <br />Run: MANTECH_140908A <br />09/08/14 13:29 <br />Fluoride <br />2.20 mg /L <br />0.10 <br />94 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 26 <br />