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® - www.e+n'r&b.com � Helena, MT 877472 -0711 • Billings, MT 800- 735-4489 • Casper, WY 886 -235 -6515 <br />E='hi=SAwv 1W Gillette, WY 666 -066 -7175 • Rapid City, SO 886 -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 />09/05/13 <br />Project: <br />Schwartz SW 8/6/13 S27019 <br />Work Order: <br />C13080305 <br />Analyte <br />Count Result Units <br />RL %REC Low Limit High Limit RPD <br />RPDLimit Qual <br />Method: E200.8 <br />E200.8 <br />ICV <br />Initial Calibration Verification Standard <br />0.0206 mg /L 0.0010 <br />103 <br />Analytical Run: ICPMS2- C_130816B <br />08/16/13 19:07 <br />90 110 <br />Method: <br />E200.8 <br />Batch: 38624 <br />Sample ID: C13080303 -001 DMS3 <br />11 Sample Matrix Spike <br />Batch: 38624 <br />Run: ICPMS2- C_130812A <br />MB -38624 <br />08/12/13 21:55 <br />Lead <br />0.512 mg /L <br />0.0010 <br />102 <br />70 <br />130 <br />4E -05 mg /L <br />2E -05 <br />Manganese <br />2.37 mg /L <br />0.0010 <br />94 <br />70 <br />130 <br />Molybdenum <br />0 546 mg /L <br />0.0010 <br />107 <br />70 <br />130 <br />102 <br />85 115 <br />Thallium <br />0.509 mg /L <br />0.00050 <br />102 <br />70 <br />130 <br />Run: ICPMS2- C_130816B <br />08/16/13 20:51 <br />Uranium <br />0.570 mg /L <br />0.00030 <br />112 <br />70 <br />130 <br />Sample ID: <br />Zinc <br />0.450 mg /L <br />0.010 <br />89 <br />70 <br />130 <br />Silver <br />Sample ID: C13080303 -001 DMSD3 <br />11 Sample Matrix Spike Duplicate <br />99 <br />70 130 2.5 <br />Run: ICPMS2- C_130812A <br />08/12/13 22:11 <br />Aluminum <br />2.49 mg /L <br />0.030 <br />99 <br />70 <br />130 <br />3.2 <br />20 <br />Antimony <br />0.534 mg /L <br />0.0010 <br />107 <br />70 <br />130 <br />1.0 <br />20 <br />Arsenic <br />0.476 mg /L <br />0.0010 <br />95 <br />70 <br />130 <br />2.3 <br />20 <br />Chromium <br />0.476 mg /L <br />0.0050 <br />95 <br />70 <br />130 <br />0.6 <br />20 <br />Copper <br />0.465 mg /L <br />0.0050 <br />93 <br />70 <br />130 <br />0.5 <br />20 <br />Lead <br />0.513 mg /L <br />0.0010 <br />103 <br />70 <br />130 <br />0.1 <br />20 <br />Manganese <br />2.37 mg /L <br />0.0010 <br />94 <br />70 <br />130 <br />0.0 <br />20 <br />Molybdenum <br />0.548 mg /L <br />0.0010 <br />107 <br />70 <br />130 <br />0.5 <br />20 <br />Thallium <br />0 514 mg /L <br />0.00050 <br />103 <br />70 <br />130 <br />1.0 <br />20 <br />Uranium <br />0.575 mg /L <br />0.00030 <br />113 <br />70 <br />130 <br />0.8 <br />20 <br />Zinc <br />0.442 mg /L <br />0.010 <br />88 <br />70 <br />130 <br />1.7 <br />20 <br />Method: <br />Sample ID: <br />Silver <br />E200.8 <br />ICV <br />Initial Calibration Verification Standard <br />0.0206 mg /L 0.0010 <br />103 <br />Analytical Run: ICPMS2- C_130816B <br />08/16/13 19:07 <br />90 110 <br />Method: <br />E200.8 <br />Batch: 38624 <br />Sample ID: <br />MB -38624 <br />Method Blank <br />Run ICPMS2- C_130816B <br />08/16/13 20:16 <br />Silver <br />4E -05 mg /L <br />2E -05 <br />Sample ID: <br />LCS3 -38624 <br />Laboratory Control Sample <br />Run: ICPMS2- C_130816B <br />08/16/13 20:19 <br />Silver <br />0.051 mg /L <br />0 010 <br />102 <br />85 115 <br />Sample ID: <br />C13080303 -001 DMS3 <br />Sample Matrix Spike <br />Run: ICPMS2- C_130816B <br />08/16/13 20:51 <br />Silver <br />0.048 mg /L <br />0.010 <br />97 <br />70 130 <br />Sample ID: <br />C13080303 -001 DMSD3 <br />Sample Matrix Spike Duplicate <br />Run: ICPMS2- C_130816B <br />08/16/13 20:53 <br />Silver <br />0.050 mg /L <br />0.010 <br />99 <br />70 130 2.5 <br />20 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 13 of 25 <br />