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• www.energylab.wm Helena, AR 817- 412 -Oil l • Billings, MT 600- 135.4489 •Gasper, WY 888 - 235 -0515 <br />N1C' °0't Gillette, WY 866 - 686.1175 • Rapid City, SD 888 -672 -1225 • College Station, TX 888 -690 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 06/11/13 <br />Project: Schwartz GW 05/18/13 S26985 & S26986 Work Order: C13050721 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E200.8 <br />Run: ICPMS2- C_130523A <br />05/24/13 04:18 <br />Analytical Run: ICPMS2- C_130523A <br />Sample ID: ICV <br />7 Initial Calibration Verification Standard <br />107 <br />70 <br />130 <br />05/23/13 14:32 <br />Antimony <br />0.0538 <br />mg /L <br />0.0010 <br />108 <br />90 <br />110 <br />1.4 <br />Arsenic <br />0.0507 <br />mg /L <br />0.0010 <br />101 <br />90 <br />110 <br />0.2 <br />Copper <br />0.0509 <br />mg /L <br />0.0010 <br />102 <br />90 <br />110 <br />0.4 <br />Lead <br />0.0507 <br />mg /L <br />0.0010 <br />101 <br />90 <br />110 <br />0.1 <br />Manganese <br />0.0504 <br />mg /L <br />0.0010 <br />101 <br />90 <br />110 <br />1.6 <br />Silver <br />0.0201 <br />mg /L <br />0.0010 <br />101 <br />90 <br />110 <br />0.5 <br />Thallium <br />0.0514 <br />mg /L <br />0.0010 <br />103 <br />90 <br />110 <br />Method: E200.8 <br />Batch- 37571 <br />Sample ID: MB -37571 <br />7 Method Blank <br />Run: ICPMS2- C_130523A <br />05/24/13 02:54 <br />Antimony <br />0.0003 <br />mg /L <br />6E -05 <br />Arsenic <br />ND <br />mg /L <br />0.0002 <br />Copper <br />0.0002 <br />mg /L <br />0.0001 <br />Lead <br />ND <br />mg /L <br />2E -05 <br />Manganese <br />ND <br />mg /L <br />7E -05 <br />Silver <br />0.0001 <br />mg /L <br />4E -05 <br />Thallium <br />ND <br />mg /L <br />4E -05 <br />Sample ID: LCS3 -37571 <br />7 Laboratory Control Sample <br />Run: ICPMS2- C_130523A <br />05/24/13 02:58 <br />Antimony <br />0.538 <br />mg /L <br />0.0010 <br />108 <br />85 <br />115 <br />Arsenic <br />0.485 <br />mg /L <br />0.0010 <br />97 <br />85 <br />115 <br />Copper <br />0.496 <br />mg /L <br />0.0050 <br />99 <br />85 <br />115 <br />Lead <br />0 511 <br />mg /L <br />0.0010 <br />102 <br />85 <br />115 <br />Manganese <br />2.50 <br />mg /L <br />0.0010 <br />100 <br />85 <br />115 <br />Silver <br />0.0509 <br />mg /L <br />0.0010 <br />102 <br />85 <br />115 <br />Thallium <br />0.489 <br />mg /L <br />0.00050 <br />98 <br />85 <br />115 <br />Sample ID: C13050708- 002DMS3 7 Sample Matrix <br />Spike <br />Run: ICPMS2- C_130523A <br />05/24/13 04:15 <br />Antimony <br />0.529 <br />mg /L <br />0.0010 <br />106 <br />70 <br />130 <br />Arsenic <br />0.481 <br />mg /L <br />0.0010 <br />96 <br />70 <br />130 <br />Copper <br />0.493 <br />mg /L <br />0.0050 <br />99 <br />70 <br />130 <br />Lead <br />0.522 <br />mg /L <br />0.0010 <br />104 <br />70 <br />130 <br />Manganese <br />3.08 <br />mg /L <br />0.0010 <br />99 <br />70 <br />130 <br />Silver <br />0.0499 <br />mg /L <br />0.0010 <br />100 <br />70 <br />130 <br />Thallium <br />0.505 <br />mg /L <br />0.00050 <br />101 <br />70 <br />130 <br />Sample ID: C13050708- 002DMSD <br />7 Sample Matrix Spike Duplicate <br />Run: ICPMS2- C_130523A <br />05/24/13 04:18 <br />Antimony <br />0.533 mg /L <br />0.0010 <br />107 <br />70 <br />130 <br />0.8 <br />20 <br />Arsenic <br />0.488 mg /L <br />0.0010 <br />98 <br />70 <br />130 <br />1.4 <br />20 <br />Copper <br />0.493 mg /L <br />0.0050 <br />98 <br />70 <br />130 <br />0.2 <br />20 <br />Lead <br />0.524 mg /L <br />0.0010 <br />105 <br />70 <br />130 <br />0.4 <br />20 <br />Manganese <br />3.08 mg /L <br />0.0010 <br />99 <br />70 <br />130 <br />0.1 <br />20 <br />Silver <br />0.0491 mg /L <br />0.0010 <br />98 <br />70 <br />130 <br />1.6 <br />20 <br />Thallium <br />0.508 mg /L <br />0.00050 <br />102 <br />70 <br />130 <br />0.5 <br />20 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 11 of 24 <br />