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www.emdab.com r Helena, MT 877- 472 -0711 • Billings, MT 800- 735 -4489 • Casper, WY 888- 235 -0515 <br />1e' A.IZ2 J Gillette, WY 866 -686 -7175 • Rapid City, SO 886 -672 -1225 + College Station, TX 888 - 690 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Project: Schwartz 5/16/13 S26976- S26978 & S26980- S26983 <br />Analyte Count Result Units <br />Method: E200.8 <br />100 <br />90 <br />Sample ID: ICV <br />6 <br />Initial Calibration Verification S <br />Aluminum <br />110 <br />0.0502 mg /L <br />Antimony <br />90 <br />0.0531 mg /L <br />Lead <br />101 <br />0.0498 mg /L <br />Molybdenum <br />0.0010 <br />0.0506 mg /L <br />Thallium <br />110 <br />0.0510 mg /L <br />Uranium <br />90 <br />0.0505 mg /L <br />Method: E200.8 <br />Sample ID: MB -37568 <br />6 <br />Method Blank <br />Aluminum <br />115 <br />0.005 mg /L <br />Antimony <br />0.0003 mg /L <br />Lead <br />85 <br />ND mg /L <br />Molybdenum <br />ND mg /L <br />Thallium <br />108 <br />ND mg /L <br />Uranium <br />ND mg /L <br />Sample ID: LCS3 -37568 <br />6 <br />Laboratory Control Sample <br />Aluminum <br />2.35 mg /L <br />Antimony <br />03:05 <br />0.541 mg /L <br />Lead <br />70 <br />0.516 mg /L <br />Molybdenum <br />0.539 mg /L <br />Thallium <br />96 <br />0.492 mg /L <br />Uranium <br />0.542 mg /L <br />Sample ID: C13050655- 002AMS3 <br />6 <br />Sample Matrix Spike <br />Aluminum <br />130 <br />4.27 mg /L <br />Antimony <br />0.480 mg /L <br />Lead <br />70 <br />0.457 mg /L <br />Molybdenum <br />1.05 mg /L <br />Thallium <br />108 <br />0.538 mg /L <br />Uranium <br />0.532 mg /L <br />Sample ID: C13050655- 002AMSD <br />6 <br />Sample Matrix Spike Duplicate <br />Aluminum <br />130 <br />4.45 mg /L <br />Antimony <br />0.488 mg /L <br />Lead <br />Run: ICPMS2- C_130524A <br />0.469 mg /L <br />Molybdenum <br />05/25/13 <br />1.07 mg /L <br />Thallium <br />83 <br />0.557 mg /L <br />Uranium <br />4.1 <br />0.535 mg /L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />Report Date: 06/12/13 <br />Work Order: C13050679 <br />RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Analytical Run: ICPMS2- C_130524A <br />tandard 05/24/13 13:41 <br />0.0010 <br />100 <br />90 <br />110 <br />0.0010 <br />106 <br />90 <br />110 <br />0.0010 <br />100 <br />90 <br />110 <br />0.0010 <br />101 <br />90 <br />110 <br />0.0010 <br />102 <br />90 <br />110 <br />0.00030 <br />101 <br />90 <br />110 <br />Batch: 37568 <br />Run: ICPMS2- C_130524A 05/25/13 02:46 <br />0.0007 <br />6E -05 <br />2E -05 <br />6E -05 <br />4E -05 <br />1 E -05 <br />ND - Not detected at the reporting limit. <br />S - Spike recovery outside of advisory limits. <br />Page 17 of 37 <br />Run: ICPMS2- C_130524A <br />05/25/13 <br />02:49 <br />0.030 <br />94 <br />85 <br />115 <br />0.0010 <br />108 <br />85 <br />115 <br />0.0010 <br />103 <br />85 <br />115 <br />0.0010 <br />108 <br />85 <br />115 <br />0.00050 <br />98 <br />85 <br />115 <br />0.00030 <br />108 <br />85 <br />115 <br />Run: ICPMS2- C_130524A <br />05/25/13 <br />03:05 <br />0.030 <br />76 <br />70 <br />130 <br />0.0010 <br />96 <br />70 <br />130 <br />0.0010 <br />91 <br />70 <br />130 <br />0.0010 <br />132 <br />70 <br />130 <br />S <br />0.00050 <br />108 <br />70 <br />130 <br />0.00030 <br />105 <br />70 <br />130 <br />Run: ICPMS2- C_130524A <br />05/25/13 <br />03:07 <br />0.030 <br />83 <br />70 <br />130 <br />4.1 <br />20 <br />0.0010 <br />97 <br />70 <br />130 <br />1.5 <br />20 <br />0.0010 <br />94 <br />70 <br />130 <br />2.7 <br />20 <br />0.0010 <br />137 <br />70 <br />130 <br />2.2 <br />20 <br />S <br />0.00050 <br />111 <br />70 <br />130 <br />3.3 <br />20 <br />0.00030 <br />106 <br />70 <br />130 <br />0.6 <br />20 <br />ND - Not detected at the reporting limit. <br />S - Spike recovery outside of advisory limits. <br />Page 17 of 37 <br />