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gum wwwtnergyiab.com Helena, MT 817472 -0711 • Billings, MT 800- 735 -4489 • Casper, WY 888 -235 -8515 <br />As&XWExa6=SAw#1JV J Gillette, wy 866-686 -1175 • Rapid City, SO BBB- 672 -1225 • College Station, TX 888 - 690 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 09/30/13 <br />Project: Schwartz SW 09/05/13 S27131 Work Order: 013090222 <br />Analyte Count Result Units RL ° /.REC Low Limit High Limit RPD RPDLimit Qual <br />Method: <br />E200.8 <br />Analytical Run: <br />ICPMS2- C_130920A <br />Sample ID: <br />ICV 4 Initial Calibration Verification Standard <br />09/20/13 14:21 <br />Chromium <br />0.0511 <br />mg /L <br />0.0010 <br />102 <br />90 <br />110 <br />Copper <br />0.0518 <br />mg /L <br />0.0010 <br />104 <br />90 <br />110 <br />Silver <br />0.0208 <br />mg /L <br />0.0010 <br />104 <br />90 <br />110 <br />Thallium <br />0.0523 <br />mg /L <br />0.0010 <br />105 <br />90 <br />110 <br />Method: <br />E200.8 <br />Batch: 39067 <br />Sample ID: <br />MB -39067 4 Method Blank <br />Run: ICPMS2- C_130920A <br />09/20/13 14:37 <br />Chromium <br />0.004 <br />mg /L <br />0.0002 <br />Copper <br />ND <br />mg /L <br />0.0004 <br />Silver <br />0.0003 <br />mg /L <br />2E -05 <br />Thallium <br />ND <br />mg /L <br />00001 <br />Sample ID: <br />LCS3 -39067 4 Laboratory Control Sample <br />Run: ICPMS2- C_130920A <br />09/20/13 14:41 <br />Chromium <br />0.498 <br />mg /L <br />0.0050 <br />99 <br />85 <br />115 <br />Copper <br />0.488 <br />mg /L <br />0.0050 <br />98 <br />85 <br />115 <br />Silver <br />0.0490 <br />mg /L <br />0.0010 <br />97 <br />85 <br />115 <br />Thallium <br />0.517 <br />mg /L <br />0.00050 <br />103 <br />85 <br />115 <br />Sample ID: <br />C13090222 -001 DMS3 4 Sample Matrix <br />Spike <br />Run: ICPMS2- C_130920A <br />09/20/13 15:28 <br />Chromium <br />0.478 <br />mg /L <br />0.0050 <br />95 <br />70 <br />130 <br />Copper <br />0.467 <br />mg /L <br />0.0050 <br />93 <br />70 <br />130 <br />Silver <br />0.0470 <br />mg /L <br />0.0010 <br />94 <br />70 <br />130 <br />Thallium <br />0.517 <br />mg /L <br />0.00050 <br />103 <br />70 <br />130 <br />Sample ID: <br />C13090222- 001DMSD3 4 Sample Matrix <br />Spike Duplicate <br />Run: ICPMS2- C_130920A <br />09/20/13 15:30 <br />Chromium <br />0.485 <br />mg /L <br />0.0050 <br />97 <br />70 <br />130 1.4 <br />20 <br />Copper <br />0.483 <br />mg /L <br />0.0050 <br />96 <br />70 <br />130 3.3 <br />20 <br />Silver <br />0.0490 <br />mg /L <br />0.0010 <br />98 <br />70 <br />130 4.0 <br />20 <br />Thallium <br />0.530 <br />mg /L <br />0.00050 <br />106 <br />70 <br />130 2.5 <br />20 <br />Qualifiers: <br />RL - Analyte reporting limit. ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration <br />Page 16 of 27 <br />