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www.energylaD.com <br />Ana"ca/fxce0sace2m 1852 Helena, W 677-472-0711 • Billings, MT 800-735-4489 = Casper, WY 888-235-0515 <br />Gillette, WY 866-686-7175 • Rapid City, SD 886-672-1225 • College Station, TX 888-690-2218 <br /> QA/QC Summary Report <br /> Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 01/24/11 <br />Project: Schwartzwalder Water Sampling Program Discharge Work Order: C10120395 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: D2036 Batch: B_R158494 <br />Sample ID: 810121201-0011MS Sample Matrix Spike Run: SUB-B158494 12/14/10 14:40 <br />Cyanide, Weak Acid Dissociable 0.104 mg/L 0.0050 104 80 120 <br />Sample ID: B10121201-001IMSD Sample Matrix Spike Duplicate Run: SUB-B158494 12/14/10 14:41 <br />Cyanide, Weak Acid Dissociable 0.104 mg/L 0.0050 104 80 120 0.2 10 <br />Sample ID: LFB Laboratory Fortified Blank Run: SUB-B158494 12/14/10 10:51 <br />Cyanide, Weak Acid Dissociable 0.108 mg/L 0.0050 108 90 110 <br />Sample ID: MBLK Method Blank Run: SUB-B158494 12/14/10 10:53 <br />Cyanide, Weak Acid Dissociable 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 10 of 22