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www.eneirgylab.com Helena, MT 677- 472 -0711 • Billings, W 800 - 7354489 * Casper, WY 888 - 235 -0515 <br />,bsyoWEwallaawftcs Gillette, WY 866- 666 -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: Cotter Corporation Report Date: 07/12/13 <br />Project: Schwartz - GW 06/19/13 S27006 - S27007 Work Order: C13060719 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E200.8 <br />6 Laboratory Control Sample <br />Batch 37960 <br />Sample ID: MB -37960 <br />6 Method Blank <br />Analytical Run: ICPMS4- C_130710A <br />Sample ID: ICV <br />6 Initial Calibration Verification <br />Standard <br />mg /L <br />0.0002 <br />07/10/13 17:00 <br />Antimony <br />0.0527 <br />mg /L <br />0.0010 <br />105 <br />90 <br />110 <br />Arsenic <br />0.0512 <br />mg /L <br />0.0010 <br />102 <br />90 <br />110 <br />Copper <br />0.0491 <br />mg /L <br />0.0010 <br />98 <br />90 <br />110 <br />Lead <br />0.0497 <br />mg /L <br />0.0010 <br />99 <br />90 <br />110 <br />Silver <br />0.0205 <br />mg /L <br />0.0010 <br />102 <br />90 <br />110 <br />Thallium <br />0.0510 <br />mg /L <br />0.0010 <br />102 <br />90 <br />110 <br />Method: E200.8 <br />6 Laboratory Control Sample <br />Batch 37960 <br />Sample ID: MB -37960 <br />6 Method Blank <br />07/10/13 19:47 <br />Run: ICPMS4- C_130710A 07/10/13 19:43 <br />Antimony <br />0.0004 <br />mg /L <br />0.0002 <br />Arsenic <br />0.003 <br />mg /L <br />0.0004 <br />Copper <br />ND <br />mg /L <br />0.0002 <br />Lead <br />ND <br />mg /L <br />4E -05 <br />Silver <br />ND <br />mg /L <br />0.0002 <br />Thallium <br />ND <br />mg /L <br />6E -05 <br />Sample ID: LCS3 -37960 <br />6 Laboratory Control Sample <br />Run: ICPMS4- C_130710A <br />07/10/13 19:47 <br />Antimony <br />0.546 mg /L <br />0.0010 <br />109 <br />85 115 <br />Arsenic <br />0.519 mg /L <br />0.0010 <br />103 <br />85 115 <br />Copper <br />0.474 mg /L <br />0.0050 <br />95 <br />85 115 <br />Lead <br />0.494 mg /L <br />0.0010 <br />99 <br />85 115 <br />Silver <br />0.0491 mg /L <br />0.0010 <br />98 <br />85 115 <br />Thallium <br />0.484 mg /L <br />0.00050 <br />97 <br />85 115 <br />Sample ID: C13060710- 002BMS3 <br />6 Sample Matrix Spike <br />Run- ICPMS4- C_130710A <br />07/10/13 19:59 <br />Antimony <br />1.06 mg /L <br />0.0010 <br />106 <br />70 130 <br />Arsenic <br />0.987 mg /L <br />0.0010 <br />96 <br />70 130 <br />Copper <br />0.954 mg /L <br />0.0050 <br />92 <br />70 130 <br />Lead <br />1.07 mg /L <br />0.0010 <br />105 <br />70 130 <br />Silver <br />0.0948 mg /L <br />0.0010 <br />94 <br />70 130 <br />Thallium <br />1.03 mg /L <br />000050 <br />103 <br />70 130 <br />Sample ID: C13060710- 002BMSD3 <br />6 Sample Matrix Spike Duplicate <br />Run: ICPMS4- C_130710A <br />07/10/13 20:03 <br />Antimony <br />1.08 mg /L <br />0.0010 <br />108 <br />70 130 <br />1.6 <br />20 <br />Arsenic <br />0.987 mg /L <br />0.0010 <br />96 <br />70 130 <br />0.0 <br />20 <br />Copper <br />0.955 mg /L <br />0.0050 <br />92 <br />70 130 <br />0.1 <br />20 <br />Lead <br />1.07 mg /L <br />0.0010 <br />105 <br />70 130 <br />0.3 <br />20 <br />Silver <br />0.0959 mg /L <br />0.0010 <br />95 <br />70 130 <br />1.2 <br />20 <br />Thallium <br />1.03 mg /L <br />0.00050 <br />103 <br />70 130 <br />01 <br />20 <br />Qualifiers: <br />RL - Analyte reporting limit. ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration <br />Page 13 of 23 <br />