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1,40 TFRAIrm. www.energylab.com Helena, MT 877- 472 -0711 a Billings, MT 600- 735 -4469 • Casper, WY 888- 235 -0515 <br />tee Gillette, WY 866 -686 -7175 • Rapid City, SD 886- 672 -1225 • College Station, T% 888 - 690 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 08/08/13 <br />Project: Schwartz -GW 7/10/13 S27017 Work Order: C13070431 <br />Analyte Count Result Units RL ° /dREC Low Limit High Limit RPD RPDLimit Qual <br />Method: E200.8 <br />Analytical Run: ICPMS4- C_130731A <br />Sample ID: ICV <br />7 Initial Calibration Verification <br />Standard <br />6 <br />Method Blank <br />07/31/13 11:53 <br />Antimony <br />0.0540 <br />mg /L <br />0.0010 <br />108 <br />90 <br />110 <br />Arsenic <br />0.0503 <br />mg /L <br />0.0010 <br />101 <br />90 <br />110 <br />Copper <br />0.0508 <br />mg /L <br />0.0010 <br />102 <br />90 <br />110 <br />Lead <br />0.0490 <br />mg /L <br />0.0010 <br />98 <br />90 <br />110 <br />Manganese <br />0.0512 <br />mg /L <br />0.0010 <br />102 <br />90 <br />110 <br />Thallium <br />0.0504 <br />mg /L <br />0.0010 <br />101 <br />90 <br />110 <br />Zinc <br />0.0521 <br />mg /L <br />0.0010 <br />104 <br />90 <br />110 <br />Method: E200.8 <br />Batch: 38275 <br />Sample ID: MB -38275 <br />6 <br />Method Blank <br />Run: ICPMS4- C_130731A <br />08/01/13 01:15 <br />Antimony <br />0.0002 <br />mg /L <br />0.0002 <br />Arsenic <br />0.0006 <br />mg /L <br />0.0004 <br />Copper <br />0.0003 <br />mg /L <br />0.0002 <br />Lead <br />ND <br />mg /L <br />4E -05 <br />Manganese <br />0.0001 <br />mg /L <br />0.0001 <br />Thallium <br />ND <br />mg /L <br />6E -05 <br />Sample ID: LCS3 -38275 <br />6 <br />Laboratory Control Sample <br />Run: ICPMS4- C_130731 A <br />08/01/13 01:19 <br />Antimony <br />0.555 <br />mg /L <br />0.0010 <br />111 <br />85 115 <br />Arsenic <br />0.465 <br />mg /L <br />0.0010 <br />93 <br />85 115 <br />Copper <br />0.541 <br />mg /L <br />0.0050 <br />108 <br />85 115 <br />Lead <br />0.509 <br />mg /L <br />0.0010 <br />102 <br />85 115 <br />Manganese <br />2.44 <br />mg /L <br />0.0010 <br />98 <br />85 115 <br />Thallium <br />0.485 <br />mg /L <br />0.00050 <br />97 <br />85 115 <br />Sample ID: C13070432- 008AMS3 <br />6 <br />Sample Matrix Spike <br />Run: ICPMS4- C_130731A <br />08/01/13 01:55 <br />Antimony <br />0.561 <br />mg /L <br />0.0010 <br />112 <br />70 130 <br />Arsenic <br />0.471 <br />mg /L <br />0.0010 <br />94 <br />70 130 <br />Copper <br />0.777 <br />mg /L <br />0.0050 <br />109 <br />70 130 <br />Lead <br />0.513 <br />mg /L <br />0.0010 <br />103 <br />70 130 <br />Manganese <br />2.43 <br />mg /L <br />0.0010 <br />97 <br />70 130 <br />Thallium <br />0.488 <br />mg /L <br />0.00050 <br />98 <br />70 130 <br />Sample ID: 013070432- 008AMSD3 <br />6 <br />Sample Matrix Spike Duplicate <br />Run: ICPMS4- C_130731A <br />08/01/13 01:58 <br />Antimony <br />0.565 <br />mg /L <br />0.0010 <br />113 <br />70 130 <br />0.7 <br />20 <br />Arsenic <br />0.435 <br />mg /L <br />0.0010 <br />87 <br />70 130 <br />7.9 <br />20 <br />Copper <br />0.743 <br />mg /L <br />0.0050 <br />102 <br />70 130 <br />4.4 <br />20 <br />Lead <br />0.487 <br />mg /L <br />0.0010 <br />97 <br />70 130 <br />5.3 <br />20 <br />Manganese <br />2.30 <br />mg /L <br />0.0010 <br />92 <br />70 130 <br />5.5 <br />20 <br />Thallium <br />0.465 <br />mg /L <br />0.00050 <br />93 <br />70 130 <br />4 8 <br />20 <br />Method: E200.8 <br />Batch: R176629 <br />Sample ID: LRB <br />4 <br />Method Blank <br />Run: ICPMS4- C_130731A <br />07/31/13 12:51 <br />Antimony <br />0.0007 <br />mg /L <br />0.0001 <br />Copper <br />ND <br />mg /L <br />3E -05 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration <br />Page 10 of 20 <br />