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www.enerdab.com J Helena, MT 871 -472 -0711 • Billings, MY 810- 735-4488 • Casper, WY 888- 235 -0515 <br />X't� Gillette, WY 866 -686 -7175 • Rapid City, SD 886 -672 -1225 • College Station, TX 888- 600 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Project: Schwartz -GW 09/04/14 S27679 <br />Analyte Count Result Units <br />Method: <br />E300.0 <br />90 110 <br />90 110 <br />Lab ID: <br />CCV091014 -2 <br />2 <br />Continuing Calibration Verificat <br />Chloride <br />Run: IC2 -C 140910A <br />9.86 mg /L <br />Sulfate <br />39.6 mg /L <br />Method: <br />E300.0 <br />Lab ID: <br />ICB <br />2 <br />Method Blank <br />Chloride <br />99 <br />90 110 <br />ND mg /L <br />Sulfate <br />99 <br />90 110 <br />0.1 mg /L <br />Lab ID: <br />LFB091014 -1 <br />2 <br />Laboratory Fortified Blank <br />Chloride <br />99 <br />90 110 <br />9.87 mg /L <br />Sulfate <br />93 <br />90 110 <br />39.6 mg /L <br />Lab ID: <br />C14090369- 001AMS <br />2 <br />Sample Matrix Spike <br />Chloride <br />102 <br />90 110 <br />30.9 mg /L <br />Sulfate <br />96 <br />90 110 <br />296 mg /L <br />Lab ID: <br />C14090369- 001AMSD <br />2 <br />Sample Matrix Spike Duplicate <br />Chloride <br />31.5 mg /L <br />Sulfate <br />299 mg /L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />Report Date: 09/30/14 <br />Work Order: C14090400 <br />RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Analytical Run: IC2- C_140910A <br />ion Standard 09/10/14 22:02 <br />1.0 <br />1.0 <br />99 <br />99 <br />90 110 <br />90 110 <br />Batch: R190936 <br />Run: IC2 -C 140910A <br />09/10/1416:49 <br />0.01 <br />0.03 <br />Run: IC2 -C 140910A <br />09/10/1417:06 <br />1.0 <br />99 <br />90 110 <br />1.0 <br />99 <br />90 110 <br />Run: IC2- C_140910A <br />09/10/14 22:55 <br />1.0 <br />99 <br />90 110 <br />1.0 <br />93 <br />90 110 <br />Run: IC2 -C 140910A <br />09/10/14 23:12 <br />1.0 <br />102 <br />90 110 <br />2.0 20 <br />1.0 <br />96 <br />90 110 <br />0.9 20 <br />ND - Not detected at the reporting limit. <br />Page 14 of 21 <br />