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ENERGY <br />Client: Cotter Corporation <br />www.energylab.com r Helena, MR 877 - 472 -0711 • Billings, MT 800- 735 -4489 • Casper, WY 888- 235 -0515 <br />al Enema 1851 J Gillette, WY 866 -686 -7175 • Rapid City, SD 888- 672 -1225 • College Station, TX 888- 690 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Project: Schwartz GW 12/30/11 S26173 Work Order: C12010004 <br />Analyte Count Result Units <br />Method: E300.0 <br />Sample ID: ICB- 010912 -11 2 Method Blank <br />Chloride ND mg /L <br />Sulfate 0.2 mg /L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E300.0 Analytical Run' IC2- C_120109A <br />Sample ID: ICV- 010912 -10 2 Initial Calibration Verification Standard 01/09/12 13:08 <br />Chloride 10.1 mg /L 1.0 101 90 110 <br />Sulfate 40.5 mg /L 1.0 101 90 110 <br />0.10 <br />0.08 <br />Run: IC2- C_120109A <br />Sample ID: LFB- 010912 -12 2 Laboratory Fortified Blank Run. IC2- C_120109A <br />Chloride 10.4 mg /L 1.0 104 90 110 <br />Sulfate 40.6 mg /L 1.0 101 90 110 <br />Sample ID: C11120800- 015AMS 2 Sample Matrix Spike Run IC2- C_120109A 01/09/12 14:15 <br />Chloride 7460 mg /L 40 89 90 110 S <br />Sulfate 10400 mg /L 160 99 90 110 <br />- Matrix spike recoveries outside the acceptance range are considered matrix related <br />Sample ID: C11120800- 015AMSD 2 Sample Matrix Spike Duplicate Run: IC2- C_120109A 01/09/12 14:29 <br />Chloride 7650 mg /L 40 98 90 110 2 4 10 <br />Sulfate 10500 mg /L 160 100 90 110 0.8 10 <br />ND - Not detected at the reporting limit. <br />S - Spike recovery outside of advisory limits. <br />Report Date: 02/07/12 <br />Page 14 of 21 <br />Batch R155185 <br />01/09/12 13:21 <br />01/09/12 13:35 <br />