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www.ewzlab.com Helena,MT 877-472-0711 •Billings,MT 800-735-4489*Casper,WY 888-235-8515 <br /> - AedWleslfx-&-III=lest f Gillette,WY 866-666-7175•Rapid City,SO 888-672-1225•College Station,TX 888-680-2218 <br /> QA/QC Summary Report <br /> Prepared by Casper,WY Branch <br /> Client: Cotter Corporation Report Date: 06/13/14 <br /> Project: Schwartz-GW 5/21/14 S27511 Work Order: C14050681 <br /> Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br /> Method: E200.8 Batch: R187366 <br /> Lab ID: C14050681-001CMS4 4 Sample Matrix Spike Run: ICPMS4-C_140609A 06/10/14 01:49 <br /> Thallium 0.0561 mg/L 0.00050 112 70 130 <br /> Uranium 1.21 mg/L 0.00030 70 130 A <br /> Lab ID: C14050681-001CMSD 4 Sample Matrix Spike Duplicate Run: ICPMS4-C_140609A 06/10/14 01:53 <br /> Antimony 0.0552 mg/L 0.0010 110 70 130 3.4 20 <br /> Copper 0.0493 mg/L 0.0050 99 70 130 1.8 20 <br /> Thallium 0.0550 mg/L 0.00050 110 70 130 2.0 20 <br /> Uranium 1.15 mg/L 0.00030 70 130 4.5 20 A <br /> Qualifiers: <br /> RL-Analyte reporting limit. A-The analyte level was greater than four times the spike level. In <br /> accordance with the method%recovery is not calculated. <br /> ND-Not detected at the reporting limit. MDC-Minimum detectable concentration <br /> Page 12 of 21 <br />