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www.owi5lob.com Helena, lilt 877- 472 -0711 • Billings, Ili' 800- 735 -4489 • Casper, WY 888- 235 -0515 <br />AWWkJIE=fib=SIX#IZ2 <br />Gillette, WY 866 -686 -7175 • Rapid City, SD 886 -672 -1225 • College Station, <br />YX 888 -680 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Report Date: <br />10/02/13 <br />Project: Schwartz SW 9/5/13 S27130 Work Order: <br />C13090203 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD <br />RPDLimit Qual <br />Method: E300.0 <br />Analytical <br />Run: IC2- C_130911AI <br />Sample ID: CCV- 091113 -08 <br />2 Continuing Calibration Verification Standard <br />09/13/13 00:25 <br />Chloride <br />10.0 mg /L 1.0 100 90 110 <br />Sulfate <br />39.0 mg /L 10 98 90 110 <br />Method: E300.0 <br />Batch- R178242 <br />Sample ID: ICB- 091113 -01 <br />2 Method Blank Run: IC2- C_130911A <br />09/11/1317:24 <br />Chloride <br />ND mg /L 0.03 <br />Sulfate <br />0.1 mg /L 0.07 <br />Sample ID: LFB- 091113 -01 <br />2 Laboratory Fortified Blank Run: IC2- C130911 A <br />09/11/13 17:43 <br />Chloride <br />9.93 mg /L 1.0 99 90 110 <br />Sulfate <br />39.5 mg /L 10 99 90 110 <br />Sample ID: C13090232- 001AMS <br />2 Sample Matrix Spike Run: IC2- C_130911A <br />09/13/13 05:39 <br />Chloride <br />227 mg /L 2.1 106 90 110 <br />Sulfate <br />390 mg /L 8.3 97 90 110 <br />Sample ID: C13090232- 001AMSD <br />2 Sample Matrix Spike Duplicate Run: IC2- C_130911A <br />09/13/13 05:57 <br />Chloride <br />225 mg /L 2.1 104 90 110 0.9 <br />20 <br />Sulfate <br />388 mg /L 8.3 97 90 110 0.5 <br />20 <br />Qualifiers: <br />RL - Analyte reporting limit. ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration <br />Page 17 of 25 <br />