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ENERGY <br />LA HO SAT O VII F_S <br />Client: Cotter Corporation <br />r <br />www.energylab.com Helena, MT 877-472-0711 • Billings, MT 800 - 135 - 4489 • Casper, WY 888 - 235 - 0515 <br />ARSydeal&m anc"Slncs 1952 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 />Report Date: 03/21/13 <br />Project: Schwartz SW 2/19/13 S26797 Work Order: C13020606 <br />Analyte <br />Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E300.0 <br />Sample ID: ICV- 022113 -11 2 Initial Calibration Verification Standard <br />Chloride 9.60 mg /L 1.0 96 90 110 <br />Sulfate 38.5 mg /L 1.0 96 90 110 <br />Method: E300.0 <br />Sample ID: ICB- 022113 -12 2 Method Blank <br />Chloride 0.06 mg /L <br />Sulfate 0.3 mg /L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />0.02 <br />0.09 <br />Run: IC2- C_130221A <br />Sample ID: LFB- 022113 -14 2 Laboratory Fortified Blank Run: IC2- C_130221A <br />Chloride 10.0 mg /L 1.0 100 90 110 <br />Sulfate 40.0 mg /L 1.0 99 90 110 <br />Sample ID: C13020615- 001AMS 2 Sample Matrix Spike Run: IC2- C_130221A <br />Chloride 42.3 mg /L 1.0 104 90 110 <br />Sulfate 298 mg /L 1.7 102 90 110 <br />ND - Not detected at the reporting limit. <br />Analytical Run: IC2- C_130221A <br />02/21/13 13:57 <br />Batch: R170640 <br />02/21/13 14:12 <br />02/21/13 14:43 <br />Sample ID: LFBD- 022113 -15 2 Laboratory Fortified Blank Duplicate Run: IC2- C_130221A 02/21/13 14:59 <br />Chloride 9.68 mg /L 1.0 96 90 110 3.3 20 <br />Sulfate 38.7 mg /L 1.0 96 90 110 3.4 20 <br />02/21/13 15:45 <br />Sample ID: C13020615- 001AMSD 2 Sample Matrix Spike Duplicate Run: IC2- C_130221A 02/21/13 16:00 <br />Chloride 42.2 mg /L 1.0 104 90 110 0.2 20 <br />Sulfate 296 mg /L 1.7 100 90 110 0.7 20 <br />Page 17 of 26 <br />