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\ www.e wulab.com Helena, MT 877 -472 -0711 • Billings, MT 800- 735 -4489 • Cesper, WY 888- 235 -8515 <br />A"~ Ewhm R'fin J Gillette, WY 866 -686 -7175 • Rapid City, SO 888- 672 -1225 • College Station, TX 888- 690 -2218 <br />QA/QC Summary Report <br />ort <br />Prepared by Casper, WY Branch <br />Revised Date: <br />09/04/13 <br />Client: Cotter Corporation <br />Report Date: <br />09/03/13 <br />Project: Schwartz -SW 8/6/13 <br />S27020 Work Order: <br />C13080303 <br />Analyte <br />Count Result Units RL %REC Low Limit High Limit RPD <br />RPDLimit Qua, <br />Method: E300.0 <br />Analytical Run: IC2- C_130809A <br />Sample ID: CCV- 081213 -01 <br />2 Continuing Calibration Verification Standard <br />08/09/13 11.34 <br />Chloride <br />9.44 mg /L 1.0 94 90 110 <br />Sulfate <br />37.9 mg /L 1.0 95 90 110 <br />Method: E300.0 <br />Batch: R176979 <br />Sample ID: ICB- 081213 <br />2 Method Blank Run: IC2- C_130809A <br />08/09/13 11:04 <br />Chloride <br />ND mg /L 0.03 <br />Sulfate <br />0.1 mg /L 0.07 <br />Sample ID: LFB- 081213 -01 <br />2 Laboratory Fortified Blank Run: IC2- C_130809A <br />08/09/13 11:19 <br />Chloride <br />9.44 mg /L 1.0 94 90 110 <br />Sulfate <br />37.9 mg /L 1.0 94 90 110 <br />Sample ID: C13080311- 001AMS <br />2 Sample Matrix Spike Run: IC2- C_130809A <br />08/09/13 12:05 <br />Chloride <br />16.6 mg /L 1.0 109 90 110 <br />Sulfate <br />51.2 mg /L 1.0 103 90 110 <br />Sample ID: C13080311- 001AMSD <br />2 Sample Matrix Spike Duplicate Run: IC2- C_130809A <br />08/09/13 12:21 <br />Chloride <br />16.7 mg /L 1.0 110 90 110 0.6 <br />20 <br />Sulfate <br />51.5 mg /L 1.0 104 90 110 0.6 <br />20 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 18 of 26 <br />