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www.emz4ab.com <br />_ Helena, MT 077- 472 -0711 • Billings, MT 800- 735 -4489 • Casper, WY 888- 235 -8515 <br />°a' 1Aii <br />Gillette, WY 066 -686 -7175 • Rapid City, SD 888 -672 -1225 • College Station, TX 888- 690 -2218 <br />QA /QC Summary Report <br />Prepared <br />by Casper, WY <br />Branch <br />Client: Cotter Corporation <br />Report Date: <br />01/08/14 <br />Project: Schwartz -GW 12/11/13 <br />S27332 <br />Work Order: <br />C13120406 <br />F alyte Count Result <br />Units <br />RL <br />° /.REC <br />Low Limit <br />High Limit RPD <br />1 <br />RPDLimit Qual <br />Method: E200.8 <br />Analytical Run: <br />ICPMS2- C_131213A <br />Sample ID: ICV <br />5 Initial Calibration Verification Standard <br />12/13/13 15:19 <br />Arsenic <br />0.0472 <br />mg /L <br />0.0010 <br />94 <br />90 <br />110 <br />Barium <br />0.0481 <br />mg /L <br />0.0010 <br />96 <br />90 <br />110 <br />Manganese <br />0.0491 <br />mg /L <br />0.0010 <br />98 <br />90 <br />110 <br />Molybdenum <br />0.0495 <br />mg /L <br />0.0010 <br />99 <br />90 <br />110 <br />Uranium <br />0.0498 <br />mg /L <br />0.00030 <br />100 <br />90 <br />110 <br />Method: E200.8 <br />Batch: R181723 <br />Sample ID: LRB <br />5 Method Blank <br />Run: ICPMS2- C_131213A <br />12/13/13 13:07 <br />Arsenic <br />ND <br />mg /L <br />0.00010 <br />Barium <br />ND <br />mg /L <br />3E -05 <br />Manganese <br />ND <br />mg /L <br />2E -05 <br />Molybdenum <br />ND <br />mg /L <br />4E -05 <br />Uranium <br />ND <br />mg /L <br />1 E -05 <br />Sample ID: LFB <br />5 Laboratory Fortified Blank <br />Run: ICPMS2- C_131213A <br />12/13/13 13:11 <br />Arsenic <br />0.0477 <br />mg /L <br />0.0010 <br />95 <br />85 <br />115 <br />Barium <br />0.0496 <br />mg /L <br />0.0010 <br />99 <br />85 <br />115 <br />Manganese <br />0.0510 <br />mg /L <br />0.0010 <br />102 <br />85 <br />115 <br />Molybdenum <br />0.0498 <br />mg /L <br />0.0010 <br />100 <br />85 <br />115 <br />Uranium <br />0.0508 <br />mg /L <br />0.00030 <br />102 <br />85 <br />115 <br />Sample ID: C13120406- 001BMS4 <br />5 Sample Matrix Spike <br />Run: ICPMS2- C_131213A <br />12/13/13 18:00 <br />Arsenic <br />0.0608 <br />mg /L <br />0.0010 <br />118 <br />70 <br />130 <br />Barium <br />0.0774 <br />mg /L <br />0.050 <br />103 <br />70 <br />130 <br />Manganese <br />2.62 <br />mg /L <br />0.0010 <br />70 <br />130 <br />A <br />Molybdenum <br />0.0709 <br />mg /L <br />0.0010 <br />106 <br />70 <br />130 <br />Uranium <br />2.05 <br />mg /L <br />0.00030 <br />70 <br />130 <br />A <br />Sample ID: C13120406- 001BMSD4 <br />5 Sample Matrix Spike Duplicate <br />Run: ICPMS2- C_131213A <br />12/13/13 18:03 <br />Arsenic <br />0.0616 <br />mg /L <br />0.0010 <br />119 <br />70 <br />130 1.2 <br />20 <br />Barium <br />0.0788 <br />mg /L <br />0.050 <br />106 <br />70 <br />130 1.8 <br />20 <br />Manganese <br />2.67 <br />mg /L <br />0.0010 <br />70 <br />130 1.9 <br />20 A <br />Molybdenum <br />0.0724 <br />mg /L <br />0.0010 <br />109 <br />70 <br />130 2.1 <br />20 <br />Uranium <br />2.09 <br />mg /L <br />0.00030 <br />70 <br />130 1.8 <br />20 A <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 6 of 14 <br />