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www.eneralab.mm Helena, W 977472-0711 • Billings, MY 800-7354488 • Casper, WY 888-236-8518 <br />tiMt Gillette, WY 866-686-7175 • Rapid City, SD BBB-672-1225 • College Station, 7X 888-689-2218 <br />QA/QC Summary Report <br />Client: Cotter Corporation Report Date: 11/17/10 <br />Project: Schwartzwalder Water Monitoring Program (S25247) Work Order: C10101008 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: D2036 Batch: B_R156450 <br />Sample ID: C10101013-004H Sample Matrix Spike Run: SUB-B156450 11/01/10 12:15 <br />Cyanide, Weak Acid Dissociable 0.107 mg/L 0.0050 107 80 120 <br />Sample ID: C10101013-004H Sample Matrix Spike Duplicate Run: SUB-B156450 11/01/10 12:16 <br />Cyanide, Weak Acid Dissociable 0.104 mg/L 0.0050 104 80 120 3.5 10 <br />Sample ID: LFB Laboratory Fortified Blank Run: SUB-8156450 11/01/10 10:54 <br />Cyanide, Weak Acid Dissociable 0.104 mg/L 0.0050 104 90 110 <br />Sample ID: MBLK Method Blank Run: SUB-B156450 11/01/10 10:56 <br />Cyanide, Weak Acid Dissociable ND mg/L 0.0020 <br />Clualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 10 of 23