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- <br />• E www.erwdob.com <br />Helena, MT 871472 -0711 • Billings, W 800- 7354480 • Casper, WY 888 - 235 -0515 <br />Ma�alFiaadArwc. <br />SYne. tss2 <br />Gillette, <br />WY 866 -686 <br />-7175 • <br />Rapid City, SO <br />888 -672 -1225 • College Station, <br />TX 888 -600 -2218 <br />QA <br />/QC Summary Report <br />Prepared by Casper, WY <br />Branch <br />Client: <br />Cotter Corporation <br />Report Date: <br />09/30/14 <br />Project: <br />Schwartz -GW 09/04/14 S27679 <br />Work Order: <br />C14090400 <br />Analyte <br />Count <br />Result <br />Units <br />RL <br />%REC <br />Low Limit <br />High Limit RPD <br />RPDLimit Qual <br />Method: <br />E200.8 <br />Analytical Run: <br />ICPMS4- C_140929A <br />Lab ID: <br />ICV 5 <br />Initial Calibration <br />Verification Standard <br />09/29/14 12:44 <br />Antimony <br />0.0502 <br />mg /L <br />0.0010 <br />100 <br />90 <br />110 <br />Copper <br />0.0524 <br />mg /L <br />0.0010 <br />105 <br />90 <br />110 <br />Thallium <br />0.0505 <br />mg /L <br />0.0010 <br />101 <br />90 <br />110 <br />Uranium <br />0.0493 <br />mg /L <br />0.00030 <br />99 <br />90 <br />110 <br />Zinc <br />0.0534 <br />mg /L <br />0.0010 <br />107 <br />90 <br />110 <br />Method: <br />E200.8 <br />Batch: R191677 <br />Lab ID: <br />LRB 5 <br />Method Blank <br />Run: ICPMS4 -C 140929A <br />09/29/14 14:56 <br />Antimony <br />ND <br />mg /L <br />0.0001 <br />Copper <br />ND <br />mg /L <br />3E -05 <br />Thallium <br />ND <br />mg /L <br />6E -05 <br />Uranium <br />0.0002 <br />mg /L <br />9E -06 <br />Zinc <br />ND <br />mg /L <br />0.0002 <br />Lab ID: <br />014090792- 003BMS 5 <br />Sample Matrix Spike <br />Run: ICPMS4- C_140929A <br />09/29/14 17:59 <br />Antimony <br />0.0585 <br />mg /L <br />0.0010 <br />117 <br />70 <br />130 <br />Copper <br />0.0478 <br />mg /L <br />0.0050 <br />96 <br />70 <br />130 <br />Thallium <br />0.0559 <br />mg /L <br />0.00050 <br />112 <br />70 <br />130 <br />Uranium <br />0.102 <br />mg /L <br />0.00030 <br />126 <br />70 <br />130 <br />Zinc <br />0.0526 <br />mg /L <br />0.010 <br />102 <br />70 <br />130 <br />Lab ID: <br />C14090792- 003BMSD 5 <br />Sample Matrix Spike Duplicate <br />Run: ICPMS4- C_140929A <br />09/29/14 18:03 <br />Antimony <br />0.0574 <br />mg /L <br />0.0010 <br />115 <br />70 <br />130 2.0 <br />20 <br />Copper <br />0.0482 <br />mg /L <br />0.0050 <br />96 <br />70 <br />130 0.9 <br />20 <br />Thallium <br />0.0553 <br />mg /L <br />0.00050 <br />111 <br />70 <br />130 1.1 <br />20 <br />Uranium <br />0.103 <br />mg /L <br />0.00030 <br />127 <br />70 <br />130 0.5 <br />20 <br />Zinc <br />0.0528 <br />mg /L <br />0.010 <br />103 <br />70 <br />130 0.4 <br />20 <br />Lab ID: <br />LFB 5 <br />Laboratory Fortified <br />Blank <br />Run: ICPMS4- C_140929A <br />09/29/14 19:09 <br />Antimony <br />0.0517 <br />mg /L <br />0.0010 <br />103 <br />85 <br />115 <br />Copper <br />0.0533 <br />mg /L <br />0.0010 <br />107 <br />85 <br />115 <br />Thallium <br />0.0515 <br />mg /L <br />0.0010 <br />103 <br />85 <br />115 <br />Uranium <br />0.0508 <br />mg /L <br />0.00030 <br />101 <br />85 <br />115 <br />Zinc <br />0.0551 <br />mg /L <br />0.0010 <br />110 <br />85 <br />115 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 12 of 21 <br />