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www.efwdab.com Helena, MT 871472 -0711 • Billings, MT BOB- 735 -4489 • Casper, WY 888- 235 -0515 <br />AN~ Ex N'GSk' Im Gillette, wY 866 -686 -7175 • Rapid City, SD 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 />Project: Schwartz -SW 9/3/14 S27625 and S27660 <br />Analyte Count Result Units <br />Method: E300.0 <br />Report Date: 09/26/14 <br />Work Order: C14090147 <br />RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Analytical Run: IC2- C_140904A <br />Lab ID: CCV090414 -5 2 Continuing Calibration Verification Standard 09/05/14 08:46 <br />Chloride 9.97 mg /L 1.0 100 90 110 <br />Sulfate 39.7 mg /L 1.0 99 90 110 <br />Method: <br />E300.0 <br />09/04/14 16:12 <br />100 <br />Lab ID: <br />ICB <br />2 <br />Method Blank <br />90 110 <br />Chloride <br />ND mg /L <br />0.01 <br />Sulfate <br />100 <br />90 110 <br />0.08 mg /L <br />0.03 <br />Lab ID: <br />LFB <br />2 <br />Laboratory Fortified Blank <br />Chloride <br />09/05/14 09:38 <br />9.97 mg /L <br />1.0 <br />Sulfate <br />A <br />102 <br />39.9 mg /L <br />1.0 <br />Lab ID: <br />LFBD <br />2 <br />Laboratory Fortified Blank Duplicate <br />09/05/14 09:55 <br />Chloride <br />90 110 <br />0.1 <br />10.00 mg /L <br />1.0 <br />Sulfate <br />1.0 <br />20 <br />40.0 mg /L <br />1.0 <br />Lab ID: <br />C1 4090144-001 AMS <br />2 <br />Sample Matrix Spike <br />Chloride <br />52.5 mg /L <br />1.0 <br />Sulfate <br />50.7 mg /L <br />1.0 <br />Lab ID: <br />C14090144- 001AMSD <br />2 <br />Sample Matrix Spike Duplicate <br />Chloride <br />52.4 mg /L <br />1.0 <br />Sulfate <br />51.2 mg /L <br />1.0 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />ND - Not detected at the reporting limit. <br />Batch: R190760 <br />Run: IC2 -C 140904A 09/04/1415:37 <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 19 of 29 <br />Run: IC2- C_140904A <br />09/04/14 16:12 <br />100 <br />90 110 <br />99 <br />90 110 <br />Run: IC2- C_140904A <br />09/04/14 16:29 <br />100 <br />90 110 <br />0.3 <br />20 <br />100 <br />90 110 <br />0.4 <br />20 <br />Run: IC2- C_140904A <br />09/05/14 09:38 <br />90 110 <br />A <br />102 <br />90 110 <br />Run: IC2- C_140904A <br />09/05/14 09:55 <br />90 110 <br />0.1 <br />20 A <br />103 <br />90 110 <br />1.0 <br />20 <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 19 of 29 <br />