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++ww.energylab.eon Helena, MT 877-472-0711 • Billings, MT $00-735-4489 Ca spot, WY 88S-235-0515 <br />• > ^ ewrytlcal bca98octVoes 1952 i Gillette, WY 866-686-7175 w Rapid City, SD 888-672-1225 • college Station, TX 888-690-2218 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 01/06/11 <br />Project: Schwartzwaider Wa ter Monitoring Program - Ground W Work Order: C10110899 <br />Analyte Count Result Units RL %REC Low Limit High L imit RPD RPDLimit Qua] <br />Method: E353.2 Analytical Run: SUB-6158063 <br />Sample ID: ICV Initial Calibration Verification Standard 12/06/10 09:30 <br />Nitrogen, Nitrate+Nitrile as N 30.8 mg/L 0.20 105 90 110 <br />Method: E353.2 Batch: B_R158063 <br />Sample ID: MBLK Method Blank Run: SUB-B158063 12/06/10 09:32 <br />Nitrogen, Nitrate+Nilrite as N ND mg/L 0.010 <br />Sample ID: LFB Laboratory Fortified Blank Run: SUB-6158063 12/06/10 09:33 <br />Nitrogen, Nitrate+Nitrile as N 1.04 mg/L 0.010 106 90 110 <br />Sample ID: C1 0110899-001 G Sample Matrix Spike Run: SUB-8158063 12/06/10 11:49 <br />Nitrogen, Nitrate+Nitrile as N 1.48 mg/L 0.010 106 90 110 <br />Sample ID: C10110899-001G Sample Matrix Spike Duplicate Run: SUB-B158063 12/06/10 11:50 <br />Nitrogen, Nitrate+Nitrlte as N 1.47 mg/L 0.010 105 90 110 0.8 10 <br />Qualifiers. <br />RL - Analyte reporting limit. <br />MDC - Minimum delectable concentration <br />ND - Not detected at the reporting limit. <br />Page 10 of 13 <br />Page 15 of 23