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? .> "w.energylab.cono Helena, MT 877-472-0711 -Billings, tAT 800-735-4489 . Casper, WY $88-235-0515 <br />Awlytreal£xce4oaceSlacs 1952 Gillette, WY 866-686-7175 m Rapid City, SO 888-672-1125 - College Station, TX 888-690.2218 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 01/21/11 <br />Project: Schwartzwalder Water Sampling Program-Ground Wat er Work Order: C10120819 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E200.8 Balch: R141855 <br />Sample ID: C10120909-002CMS4 5 Sample Matrix Spike Run: ICPMS4-C_110114A 01/14/11 13:42 <br />Thallium 0.0524 mg/L 0.0010 105 70 130 <br />Uranium 2.75 mg/L 0.00030 70 130 A <br />Sample ID: C10120909-002CMSD 5 Sample Matrix Spike Duplicate Run: ICPMS4-C_110114A 01/14/11 13:49 <br />Antimony 0.0499 mg/L 0.0010 98 70 130 13 20 <br />Copper 0.0554 mg/L 0.010 106 70 130 6.4 20 <br />Molybdenum 0.0763 mg/L 0.0010 66 70 130 13 20 <br />Thallium 0.0464 mg/L 0.0010 93 70 130 12 20 <br />Uranium 2.33 mg/L 0.00030 70 130 16 20 A <br />Method: E200.8 Batch: R141923A <br />Sample ID: C1 1 01 01 94-004AMS4 Sample Matrix Spike Run: ICPM84-C_110117A 01/18/11 09:43 <br />Antimony 0.0525 mg/L 0.050 105 70 130 <br />Sample ID: C11010194-004AMSD Sample Matrix Spike Duplicate Run: ICPMS4-C..,,110117A 01118/11 09:50 <br />Antimony 0.0539 mg/L 0.050 108 70 130 2.6 20 <br />Sample ID: LRB Method Blank Run: ICPMS4-C_110117A 01/17/11 13:59 <br />Antimony 0.0003 mg/L 0.0002 <br />Sample ID: LFB Laboratory Fortified Blank Run: ICPMS4-C_110117A 01/17/11 14:06 <br />Antimony 0.0522 mg/L 0.0010 104 85 115 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />ND - Not detected at the reporting limit. <br />A - The analyze level was greater than four times the spike level. In <br />accordance with the method % recovery is not calculated. <br />MDC - Minimum delectable concentration <br />Page 14 of 25