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• www.energylab.oom Helena, MT 877-472-0711 # Billings MT 800-735-4489 • Casper, WY 888-235-0515 <br />_ , _ ??•?"` - Ans " I fxcellenceSince 1952 Gillette, WY 866-686-7175 • Rapid City, SO 888-672-1225 • College Station, TX 888-690-2218 <br />QA/QC Summary Report <br />Client: Cotter Corporation <br />Project: Schwartzwalder Mine <br />Report Date: 09/27/10 <br />Work Order: C10080962 <br />FA,alyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual j <br />i <br />Method: E200.8 Batch: R136601 <br />Sample ID: LRB Method Blank Run: ICPMS2-C_100827A 08/27/10 17:46 <br />Uranium ND mg/L 1E-05 <br />Sample ID: LFB Laboratory Fortified Blank Run: ICPMS2-C-100827A 08/27/10 17:51 <br />Uranium 0.0525 mg/L 0.00030 105 85 115 <br />Sample ID: C10080848-023BMS Sample Matrix Spike Run: ICPMS2-C_100827A 08/28/10 04:11 <br />Uranium 0.0585 mg/L 0.00030 117 70 130 <br />Sample ID: C10080848-0238MSD Sample Matrix Spike Duplicate Run: ICPMS2-C-100827A 08/28/10 04:16 <br />Uranium 0.0588 mg/L 0.00030 117 70 130 0.5 20 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 21 of 44