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www. ene dab.com Helena, NT 677-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 <br />• _ • _ hd0WEW*fteaS&= IM Gillette, wy 866-686-7175 • Rapid City, So 886-672-1225 • College Station, TX 888-660-2216 <br /> QA/QC Summary Report <br /> Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 03/04/11 <br />Project: Schwartz SW02-03-1 1 S25602-S25608 Work Order: C11020189 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: D2036 Batch. B_1`1160999 <br />Sample ID: MBLK Method Blank Run: SUB-B160999 02/09/11 14:38 <br />Cyanide, Weak Acid Dissociable ND mg/L 0.0020 <br />Sample ID: LFB Laboratory Fortified Blank Run: SUB-B160999 02/09/11 14:36 <br />Cyanide, Weak Acid Dissociable 0.109 mg/L 0.0050 109 90 110 <br />Sample ID: C11020189-001H Sample Matrix Spike Duplicate Run: SUB-B160999 02/09/11 15:48 <br />Cyanide, Weak Acid Dissociable 0.111 mg/L 0.0050 111 80 120 5.9 10 <br />Sample ID: C11020189-001H Sample Matrix Spike Run: SUB-B160999 02/09/11 15:47 <br />Cyanide, Weak Acid Dissociable 0.105 mg/L 0.0050 105 80 120 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 17 of 37