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www.ewo4ab.com Helena, MT 877- 472 -0711 • Billings, MT 800 - 735 -4489 • Casper, WY 888 - 235 -0515 <br />M**atEw''illmANSkm y Gillette, WY 866 -686 -1175 • Rapid City, SO 888- 672 -1225 • College Station, TX 888 - 690 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: <br />Cotter Corporation <br />Report Date: <br />07/16/13 <br />Project: <br />Schwartz GW 6/23/13 S26948 <br />Work Order: <br />C13060891 <br />Analyte <br />Count Result Units <br />RL ° /.REC Low Limit High Limit RPD <br />RPDLimit Qual <br />Method: E200.8 <br />9 Sample Matrix Spike <br />Run. ICPMS2- C_130627A 06/28/13 01:09 <br />Batch: 38010 <br />Analytical Run: ICPMS2- C_130627A <br />Sample ID: ICV <br />9 Initial Calibration Verification Standard <br />70 <br />130 <br />06/27/13 15:12 <br />Aluminum <br />0.0491 <br />mg /L <br />0.0010 <br />98 <br />90 <br />110 <br />Antimony <br />0.0520 <br />mg /L <br />0.0010 <br />104 <br />90 <br />110 <br />Arsenic <br />0.0490 <br />mg /L <br />0.0010 <br />98 <br />90 <br />110 <br />Copper <br />0.0482 <br />mg /L <br />0.0010 <br />96 <br />90 <br />110 <br />Lead <br />0.0489 <br />mg /L <br />0.0010 <br />98 <br />90 <br />110 <br />Manganese <br />0.0500 <br />mg /L <br />0.0010 <br />100 <br />90 <br />110 <br />Silver <br />0.0196 <br />mg /L <br />0.0010 <br />98 <br />90 <br />110 <br />Thallium <br />0.0502 <br />mg /L <br />0.0010 <br />100 <br />90 <br />110 <br />Zinc <br />0.0487 <br />mg /L <br />0.0010 <br />97 <br />90 <br />110 <br />Method: E200.8 <br />9 Sample Matrix Spike <br />Run. ICPMS2- C_130627A 06/28/13 01:09 <br />Batch: 38010 <br />Sample ID: MB -38010 <br />9 Method Blank <br />92 <br />70 <br />130 <br />Run: ICPMS2- C_130627A 06/28/13 00:28 <br />Aluminum <br />0.002 <br />mg /L <br />0.0007 <br />130 <br />Arsenic <br />Antimony <br />0.0001 <br />mg /L <br />6E -05 <br />130 <br />Copper <br />Arsenic <br />0.0007 <br />mg /L <br />0.0002 <br />130 <br />Lead <br />Copper <br />ND <br />mg /L <br />0.0001 <br />130 <br />Manganese <br />Lead <br />ND <br />mg /L <br />2E -05 <br />130 <br />Silver <br />Manganese <br />ND <br />mg /L <br />7E -05 <br />130 <br />Thallium <br />Silver <br />7E -05 <br />mg /L <br />4E -05 <br />130 <br />Zinc <br />Thallium <br />0.0002 <br />mg /L <br />4E -05 <br />130 <br />Zinc <br />ND <br />mg /L <br />0.009 <br />Sample ID: LCS3 -38010 <br />9 Laboratory Control <br />Sample <br />Run: ICPMS2- C_130627A 06/28/13 00:31 <br />Aluminum <br />2.26 <br />mg /L <br />0.030 <br />90 <br />85 115 <br />Antimony <br />0.526 <br />mg /L <br />0.0010 <br />105 <br />85 115 <br />Arsenic <br />0.486 <br />mg /L <br />0.0010 <br />97 <br />85 115 <br />Copper <br />0.466 <br />mg /L <br />0.0050 <br />93 <br />85 115 <br />Lead <br />0.508 <br />mg /L <br />0.0010 <br />102 <br />85 115 <br />Manganese <br />2.32 <br />mg /L <br />0.0010 <br />93 <br />85 115 <br />Silver <br />0.0483 <br />mg /L <br />0.0010 <br />96 <br />85 115 <br />Thallium <br />0.510 <br />mg /L <br />0.00050 <br />102 <br />85 115 <br />Zinc <br />0.472 <br />mg /L <br />0.010 <br />94 <br />85 115 <br />Sample ID: C13060878 -001 BMS3 <br />9 Sample Matrix Spike <br />Run. ICPMS2- C_130627A 06/28/13 01:09 <br />Aluminum <br />230 mg /L <br />0.030 <br />92 <br />70 <br />130 <br />Antimony <br />0.528 mg /L <br />0.0010 <br />106 <br />70 <br />130 <br />Arsenic <br />0.477 mg /L <br />0.0010 <br />95 <br />70 <br />130 <br />Copper <br />0.455 mg /L <br />0.0050 <br />90 <br />70 <br />130 <br />Lead <br />0.504 mg /L <br />0.0010 <br />101 <br />70 <br />130 <br />Manganese <br />2.30 mg /L <br />0.0010 <br />92 <br />70 <br />130 <br />Silver <br />0.0473 mg /L <br />0.0010 <br />95 <br />70 <br />130 <br />Thallium <br />0.492 mg /L <br />0.00050 <br />98 <br />70 <br />130 <br />Zinc <br />0.452 mg /L <br />0.010 <br />90 <br />70 <br />130 <br />Qualifiers: <br />RL - Analyte reporting limit. ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration <br />Page 10 of 20 <br />