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. _ _.._.._ ..... . _. _.._..._. <br />www.energylab.com Helena, MT 877-472-0711 - Billings MT 800-735-4489 - Casper, WY 888-235-0515 <br />_ . , , _ r `• AaaW of ErcallaceUmv 195? Gillette, WY 866-686-7175 a 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 />Analyte <br />i <br />Method: D2036 <br />Sample ID: C10080962-005H <br />Cyanide, Weak Acid Dissociable <br />Sample ID: C10080962-005H <br />Cyanide, Weak Acid Dissociable <br />Sample ID: LFB <br />Cyanide, Weak Acid Dissociable <br />Sample ID: MBLK <br />Cyanide, Weak Acid Dissociable <br />Report Date: 09/27/10 <br />Work Order: C10080962 <br />Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br /> Batch: B R153245 <br />Sample Matrix Spike Run: SUB-B153245 09/01/10 13:56 <br />0.107 mg/L 0.0050 107 80 120 <br />Sample Matrix Spike Duplicate Run: SUB-B153245 09/01/10 13:57 <br />0.108 mg/L 0.0050 108 80 120 0.7 10 <br />Laboratory Fortified Blank Run: SUB-B153245 09/01/10 10:04 <br />0.107 mg/L 0.0050 107 90 110 <br />Method Blank Run: SUB-8153245 09/01/10 10:06 <br />ND mg/L 0.002 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 18 of 44