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wtivw.anergylab.com Helena, MT 877-472-0711 d Billings, MT 860-735-4489 m Casper, WY 888-235-0515 <br />Ana"cal Excellence Since 1952 Gillette, WY 866-686-7175 a Rapid City, 50 888-672-1225 a CaAoge Station, R 8118-690-2218 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 01/05/11 <br />Project: Schwartzwalder Mine Monitoring Program-Surface Wat Work Order: 010110690 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Dual <br />Method: A2320 8 <br />Sample ID: MBLK 2 Method Blank <br />Alkalinity, Total as CaC03 1 mg/L <br />Bicarbonate as HC03 2 mg/L <br />Sample ID: LCS Laboratory Control Sample <br />Alkalinity, Total as CaC03 209 mg/L <br />Sample ID: 01 0110688-001 ADUP Sample Duplicate <br />Alkalinity, Total as CaC03 88.8 ing/L <br />Sample ID: C1 0110688-001 AMS Sample Matrix Spike <br />Alkalinity, Total as CaC03 219 mg/L <br />Batch: R140109 <br />Run: MANTECH_101118A 11/18/10 15:48 <br />1 <br />1 <br />Run: MANTECH_101118A 11/18/10 16:02 <br />5.0 104 90 110 <br />Run: MANTECH._l01118A 11/19/10 00:10 <br />5.0 1.1 10 <br />Run: MANTECH-.1 011 18A 11/19/10 00:19 <br />5.0 103 80 120 <br />Qualifiers: <br />RL - Analyte reporting limit. ND • Not detected at the reporting limit. <br />MDC - Minimum detectable concentration <br />Page 12 of 39