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MNwww.eeerVab.corn Helena, MT 877- 472 -0711 • Billings, MT 800 - 735 -4489 • Casper, WY 888- 235 -8515 <br />Aar "0p'sracr tdi? Gillette, WY 866 -686 -7175 • Rapid City, SD 888 -672 -1225 • College Station, T% 888- 690 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Report Date: <br />12/10/13 <br />Project: Schwartz SW 11/6/13 S27253 S27255 S27256 <br />Work Order: <br />C13110305 <br />Analyte Count Result <br />Units <br />RL <br />%R EC <br />Low Limit <br />High Limit <br />RPD <br />RPDLimit Qual l <br />Method: E200.8 <br />Batch: 39739 <br />Sample ID: C13110305- 001DMS3 <br />13 Sample Matrix Spike <br />Run: ICPMS4- C_131113A <br />11/13/13 18:27 <br />Aluminum <br />2.16 <br />mg /L <br />0.030 <br />86 <br />70 <br />130 <br />Arsenic <br />0.498 <br />mg /L <br />0.0010 <br />99 <br />70 <br />130 <br />Boron <br />0.485 <br />mg /L <br />0.050 <br />94 <br />70 <br />130 <br />Chromium <br />0.513 <br />mg /L <br />0.0050 <br />102 <br />70 <br />130 <br />Copper <br />0.511 <br />mg /L <br />0.0050 <br />102 <br />70 <br />130 <br />Iron <br />2.74 <br />mg /L <br />0.030 <br />104 <br />70 <br />130 <br />Lead <br />0.514 <br />mg /L <br />0.0010 <br />103 <br />70 <br />130 <br />Manganese <br />2.53 <br />mg /L <br />0.0010 <br />99 <br />70 <br />130 <br />Molybdenum <br />0.534 <br />mg /L <br />0.0010 <br />107 <br />70 <br />130 <br />Silver <br />0.0518 <br />mg /L <br />0.0010 <br />104 <br />70 <br />130 <br />Thallium <br />0.497 <br />mg /L <br />0.00050 <br />99 <br />70 <br />130 <br />Uranium <br />0.557 <br />mg /L <br />0.00030 <br />111 <br />70 <br />130 <br />Zinc <br />0.497 <br />mg /L <br />0.010 <br />99 <br />70 <br />130 <br />Sample ID: C13110305 -001 DMSD3 <br />13 Sample Matrix Spike Duplicate <br />Run: ICPMS4- C_131113A <br />11/13/13 18:31 <br />Aluminum <br />2.21 <br />mg /L <br />0.030 <br />88 <br />70 <br />130 <br />2.3 <br />20 <br />Arsenic <br />0.503 <br />mg /L <br />0.0010 <br />100 <br />70 <br />130 <br />1.0 <br />20 <br />Boron <br />0.498 <br />mg /L <br />0.050 <br />96 <br />70 <br />130 <br />2.8 <br />20 <br />Chromium <br />0.513 <br />mg /L <br />0.0050 <br />102 <br />70 <br />130 <br />0.0 <br />20 <br />Copper <br />0.514 <br />mg /L <br />0.0050 <br />103 <br />70 <br />130 <br />0.6 <br />20 <br />Iron <br />2.73 <br />mg /L <br />0.030 <br />104 <br />70 <br />130 <br />0.3 <br />20 <br />Lead <br />0.522 <br />mg /L <br />0.0010 <br />104 <br />70 <br />130 <br />1.7 <br />20 <br />Manganese <br />2.59 <br />mg /L <br />0.0010 <br />101 <br />70 <br />130 <br />2.3 <br />20 <br />Molybdenum <br />0.540 <br />mg /L <br />0.0010 <br />108 <br />70 <br />130 <br />1.1 <br />20 <br />Silver <br />0.0526 <br />mg /L <br />0.0010 <br />105 <br />70 <br />130 <br />1.5 <br />20 <br />Thallium <br />0.509 <br />mg /L <br />0.00050 <br />102 <br />70 <br />130 <br />2.4 <br />20 <br />Uranium <br />0.560 <br />mg /L <br />0.00030 <br />111 <br />70 <br />130 <br />0.6 <br />20 <br />Zinc <br />0.500 <br />mg /L <br />0.010 <br />99 <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 17 of 30 <br />