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E www.energylab.com Helena, MT 877472 -0711 • Billings, MT 800 -735 -4489 • Casper, WY 888- 235 -0515 <br />Sb' 1332 f Gillette, WY 866 -686 -7175 a Rapid City, SD 888 - 672.1225 • College Station, TX 880 -690 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: <br />Cotter Corporation <br />Report Date: <br />09/30/14 <br />Project: <br />Schwartz -SW 9/4/14 S27661 <br />Work Order: <br />C14090226 <br />Analyte <br />Count Result Units RL %REC Low Limit <br />High Limit RPD <br />RPDLimit Qual <br />Method: <br />E300.0 <br />Analytical Run: IC2- C_140908A <br />Lab ID: <br />CCV090814 -2 2 Continuing Calibration Verification Standard <br />LFB <br />09/08/14 18:23 <br />Chloride <br />9.96 mg /L 1.0 100 90 <br />110 <br />90 110 <br />Sulfate <br />39.9 mg /L 1.0 100 90 <br />110 <br />90 110 <br />Method: <br />E300.0 <br />Batch: R190818 <br />Lab ID: <br />ICB <br />2 <br />Method Blank <br />Chloride <br />ND mg /L <br />Sulfate <br />0.1 mg /L <br />Lab ID: <br />LFB <br />2 <br />Laboratory Fortified Blank <br />Chloride <br />98 <br />90 110 <br />9.76 mg /L <br />Sulfate <br />97 <br />90 110 <br />39.0 mg /L <br />Lab ID: <br />C14090210- 004AMS <br />2 <br />Sample Matrix Spike <br />Chloride <br />115 <br />90 110 <br />223 mg /L <br />Sulfate <br />90 110 <br />2360 mg /L <br />Lab ID: <br />C14090210- 004AMSD <br />2 <br />Sample Matrix Spike Duplicate <br />Chloride <br />119 <br />90 110 <br />228 mg /L <br />Sulfate <br />90 110 <br />2410 mg /L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />ND - Not detected at the reporting limit. <br />S - Spike recovery outside of advisory limits. <br />A - The analyte level was greater than four times the spike level. In <br />accordance with the method % recovery is not calculated. <br />MDC - Minimum detectable concentration <br />Page 18 of 26 <br />Batch: R190818 <br />Run: IC2 -C 140908A <br />09/08/1413:43 <br />0.01 <br />0.03 <br />Run: IC2- C_140908A <br />09/08/14 14:20 <br />1.0 <br />98 <br />90 110 <br />1.0 <br />97 <br />90 110 <br />Run: IC2- C_140908A <br />09/08/14 19:16 <br />1.0 <br />115 <br />90 110 <br />S <br />4.2 <br />90 110 <br />A <br />Run: IC2- C_140908A <br />09/08/14 19:33 <br />1.0 <br />119 <br />90 110 <br />2.0 20 S <br />4.2 <br />90 110 <br />2.0 20 A <br />A - The analyte level was greater than four times the spike level. In <br />accordance with the method % recovery is not calculated. <br />MDC - Minimum detectable concentration <br />Page 18 of 26 <br />