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www.vwvab.com I Helena, MT 877- 472 -0711 • Billings, MT 800 -735 -4489 • Casper, WY 888 -235 -0515 <br />Anil" lxesMSfur' ills? I Gillette, WY 888 -088 -1175 •Rapid City, SD 888 -872 -1225 •College a tion, TX 888 -890 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Project: Schwartz GW 06/07/13 S26942 & S26943 <br />Analyte Count Result Units <br />RL <br />%aREC <br />Low Limit <br />Report Date: <br />Work Order: <br />High Limit RPD <br />07/05/13 <br />C13060291 <br />RPDLimit Quay <br />Method: E200.8 <br />Run: ICPMS2- C_130627A 06/27/13 15:43 <br />Antimony <br />ND <br />mg /L <br />Analytical Run: ICPMS2- C_130627A <br />Sample ID: ICV <br />6 Initial Calibration Verification <br />Standard <br />0.0001 <br />Molybdenum <br />ND <br />06/27/13 15:12 <br />Antimony <br />0.0520 mg /L <br />0.0010 <br />104 <br />90 <br />110 <br />6E -05 <br />Copper <br />0.0482 mg /L <br />0.0010 <br />96 <br />90 <br />110 <br />85 115 <br />Molybdenum <br />0.0497 mg /L <br />0.0010 <br />99 <br />90 <br />110 <br />85 115 <br />Thallium <br />0.0502 mg /L <br />0.0010 <br />100 <br />90 <br />110 <br />85 115 <br />Uranium <br />0.0496 mg /L <br />0.00030 <br />99 <br />90 <br />110 <br />Run: ICPMS2- C_130627A <br />Zinc <br />0.0487 mg /L <br />0.0010 <br />97 <br />90 <br />110 <br />70 130 <br />Method: E200.8 <br />6 Laboratory Fortified Blank <br />Batch: R175318 <br />Sample ID: LRB <br />6 Method Blank <br />06/27/13 15:46 <br />Run: ICPMS2- C_130627A 06/27/13 15:43 <br />Antimony <br />ND <br />mg /L <br />6E -05 <br />Copper <br />00003 <br />mg /L <br />0.0001 <br />Molybdenum <br />ND <br />mg /L <br />4E -05 <br />Thallium <br />ND <br />mg /L <br />9E -06 <br />Uranium <br />6E -05 <br />mg /L <br />1E -05 <br />Zinc <br />0.002 <br />mg /L <br />0.0006 <br />Sample ID: LFB <br />6 Laboratory Fortified Blank <br />Run: ICPMS2- C_130627A <br />06/27/13 15:46 <br />Antimony <br />0.0525 mg /L <br />0.0010 <br />105 <br />85 115 <br />Copper <br />0.0538 mg /L <br />0.0010 <br />107 <br />85 115 <br />Molybdenum <br />0.0532 mg /L <br />0.0010 <br />106 <br />85 115 <br />Thallium <br />0.0528 mg /L <br />0.0010 <br />105 <br />85 115 <br />Uranium <br />0.0528 mg /L <br />0.00030 <br />105 <br />85 115 <br />Zinc <br />0.0556 mg /L <br />0.0010 <br />107 <br />85 115 <br />Sample ID: C13060291- 002CMS4 <br />6 Sample Matrix Spike <br />Run: ICPMS2- C_130627A <br />06/27/13 20:26 <br />Antimony <br />0.0562 mg /L <br />0.0010 <br />111 <br />70 130 <br />Copper <br />0.0554 mg /L <br />0.0050 <br />98 <br />70 130 <br />Molybdenum <br />0.105 mg /L <br />0.0010 <br />103 <br />70 130 <br />Thallium <br />0.0532 mg /L <br />0.00050 <br />106 <br />70 130 <br />Uranium <br />4.02 mg /L <br />0.00030 <br />70 130 <br />A <br />Zinc <br />0.0792 mg /L <br />0.010 <br />95 <br />70 130 <br />Sample ID: C13060291- 002CMSD4 <br />6 Sample Matrix Spike Duplicate <br />Run: ICPMS2- C_130627A <br />06/27/13 20:29 <br />Antimony <br />0.0560 mg /L <br />0.0010 <br />110 <br />70 130 <br />0.3 <br />20 <br />Copper <br />0.0552 mg /L <br />0.0050 <br />97 <br />70 130 <br />0.4 <br />20 <br />Molybdenum <br />0.107 mg /L <br />0.0010 <br />107 <br />70 130 <br />2.0 <br />20 <br />Thallium <br />0.0532 mg /L <br />0.00050 <br />106 <br />70 130 <br />0.0 <br />20 <br />Uranium <br />3.98 mg /L <br />0.00030 <br />70 130 <br />1.0 <br />20 A <br />Zinc <br />0.0786 mg /L <br />0.010 <br />94 <br />70 130 <br />0.7 <br />20 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />ND - Not detected at the reporting limit. <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 13 of 24 <br />