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www.awgylab.com <br />Helena, MT 877 -472 -0711 - Billings, MT 606 -735 -4489 - Casper, WY 888- 235 -8515 <br />A4**81,f -q,. Im <br />Gillette, WY 866 -686 -7175 - <br />Rapid City, SD 886 -672 -1225 - College Station, TX 888- 690 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY <br />Branch <br />Client: Cotter Corporation <br />Report Date: <br />05/29/13 <br />Project: Schwartz -SW 5/4/13 S26868 S26869 <br />Work <br />Order: <br />C13050235 <br />Analyte Count Result <br />Units <br />RL <br />0/49EC <br />Low Limit <br />High Limit <br />RPD <br />RPDLimit Qual <br />Method: E200.8 <br />Batch. 37425 <br />Sample ID: LCS3 -37425 <br />14 Laboratory Control Sample <br />Run: ICPMS4- C_130509A <br />05/10/13 04:43 <br />Thallium <br />0 489 <br />mg /L <br />0.00050 <br />98 <br />85 <br />115 <br />Uranium <br />0 531 <br />mg /L <br />0.00030 <br />106 <br />85 <br />115 <br />Zinc <br />0.510 <br />mg /L <br />0.010 <br />102 <br />85 <br />115 <br />Sample ID: C13050235- 002DMS3 <br />14 Sample Matrix <br />Spike <br />Run: ICPMS4- C_130509A <br />05/10/13 05:39 <br />Aluminum <br />2.58 <br />mg /L <br />0.030 <br />92 <br />70 <br />130 <br />Antimony <br />0.536 <br />mg /L <br />0.0010 <br />107 <br />70 <br />130 <br />Arsenic <br />0.506 <br />mg /L <br />0.0010 <br />101 <br />70 <br />130 <br />Boron <br />0.484 <br />mg /L <br />0.050 <br />94 <br />70 <br />130 <br />Chromium <br />0.494 <br />mg /L <br />0.0050 <br />99 <br />70 <br />130 <br />Copper <br />0.494 <br />mg /L <br />0.0050 <br />99 <br />70 <br />130 <br />Iron <br />2.71 <br />mg /L <br />0.030 <br />99 <br />70 <br />130 <br />Lead <br />0.513 <br />mg /L <br />0.0010 <br />103 <br />70 <br />130 <br />Manganese <br />2.57 <br />mg /L <br />0.0010 <br />103 <br />70 <br />130 <br />Molybdenum <br />0.532 <br />mg /L <br />0.0010 <br />106 <br />70 <br />130 <br />Silver <br />0.0522 <br />mg /L <br />0.0010 <br />104 <br />70 <br />130 <br />Thallium <br />0.502 <br />mg /L <br />0.00050 <br />101 <br />70 <br />130 <br />Uranium <br />0.551 <br />mg /L <br />0.00030 <br />109 <br />70 <br />130 <br />Zinc <br />0.499 <br />mg /L <br />0.010 <br />99 <br />70 <br />130 <br />Sample ID: C13050235- 002DMSD3 <br />14 Sample Matrix <br />Spike Duplicate <br />Run: ICPMS4- C_130509A <br />05/10/13 05:42 <br />Aluminum <br />2.57 <br />mg /L <br />0.030 <br />92 <br />70 <br />130 <br />0.4 <br />20 <br />Antimony <br />0.527 <br />mg /L <br />0.0010 <br />105 <br />70 <br />130 <br />1.8 <br />20 <br />Arsenic <br />0.514 <br />mg /L <br />0.0010 <br />103 <br />70 <br />130 <br />1.6 <br />20 <br />Boron <br />0.485 <br />mg /L <br />0.050 <br />94 <br />70 <br />130 <br />0.4 <br />20 <br />Chromium <br />0.498 <br />mg /L <br />0.0050 <br />100 <br />70 <br />130 <br />0.9 <br />20 <br />Copper <br />0.506 <br />mg /L <br />0.0050 <br />101 <br />70 <br />130 <br />2.3 <br />20 <br />Iron <br />2.76 <br />mg /L <br />0.030 <br />101 <br />70 <br />130 <br />1.9 <br />20 <br />Lead <br />0.509 <br />mg /L <br />0.0010 <br />102 <br />70 <br />130 <br />0.9 <br />20 <br />Manganese <br />2.55 <br />mg /L <br />0.0010 <br />102 <br />70 <br />130 <br />1.0 <br />20 <br />Molybdenum <br />0.532 <br />mg /L <br />0.0010 <br />106 <br />70 <br />130 <br />0.1 <br />20 <br />Silver <br />0.0519 <br />mg /L <br />0.0010 <br />104 <br />70 <br />130 <br />0.7 <br />20 <br />Thallium <br />0.498 <br />mg /L <br />0.00050 <br />100 <br />70 <br />130 <br />1.0 <br />20 <br />Uranium <br />0.550 <br />mg /L <br />0.00030 <br />109 <br />70 <br />130 <br />0.3 <br />20 <br />Zinc <br />0.511 <br />mg /L <br />0.010 <br />102 <br />70 <br />130 <br />2.4 <br />20 <br />Qualifiers: <br />RL - Analyte reporting limit. ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration <br />Page 17 of 29 <br />