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www.energylab.com Helena, MT 877- 472 -0711 • Billings, W 808 - 7354409 • Casper, WY 888 - 235 -0515 <br />'R'tM 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 <br />Report Date: <br />05/29/13 <br />Project: Schwartz -SW 5/4/13 <br />S26868 S26869 <br />Work Order: <br />C13050235 <br />Analyte <br />Count Result Units <br />RL <br />° /dREC <br />Low Limit High Limit RPD <br />RPDLimit Qual <br />Method: <br />A4500 -F C <br />Batch: R173429 <br />Sample ID: <br />MBLK <br />Method Blank <br />Run: MANTECH 130510A <br />05/10/13 08:42 <br />Fluoride <br />0.01 mg /L <br />0.005 <br />Sample ID: <br />LCS -7250 <br />Laboratory Control Sample <br />Run: MANTECH_13051 CA <br />05/10/13 08:45 <br />Fluoride <br />1.96 mg /L <br />0.10 <br />98 <br />90 110 <br />Sample ID: <br />C13050210- 001AMS <br />Sample Matrix Spike <br />Run: MANTECH_130510A <br />05/10/13 08:52 <br />Fluoride <br />6.49 mg /L <br />0.10 <br />92 <br />80 120 <br />Sample ID: <br />C13050210 -001 AMSD <br />Sample Matrix Spike Duplicate <br />Run: MANTECH_130510A <br />05/10/13 08:55 <br />Fluoride <br />6.49 mg /L <br />0.10 <br />92 <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 10 of 29 <br />