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www.energylab.com Helena, MT 877-472-0711 Billings MT 800-735-4489 r Casper WY $88-235-0515 <br />Analy9rcalfxc0eaceVace 1951 Gillette, MY 866-686-7175 • Rapid City, 50 988-672-1225 College Station TX 888-690-2218 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 01/21/11 <br />Project: Schwartxwalder Water Sampling Program-Ground Water Work Order: 010120819 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLlmit Qual <br />Method: A2320 B Batch: 8141315 <br />Sample ID: MBLK 2 Method Blank Run: MANTECH_101228B 12/28/10 16:15 <br />Alkalinity, Total as CaC03 1 mg/L 1 <br />Bicarbonate as HC03 1 mg/L 1 <br />Sample ID: LCS Laboratory Control Sample Run: MANTECH_101228B 12/28/10 16:30 <br />Alkalinity, Total as CaG03 213 mg/L 5.0 106 90 110 <br />Sample ID: C10120821-0018DUP 2 Sample Duplicate Run: MANTECH_101228B 12/28/10 20:35 <br />Alkalinity, Total as CaC03 142 mg/L 5.0 1.2 10 <br />Bicarbonate as HC03 166 mg/L 5.0 2.4 10 <br />Sample ID: 010120821-001 BMS Sample Matrix Spike Run: MANTECH_101228B 12/28/10 20:43 <br />Alkalinity. Total as CaCO3 273 mg/L 5.0 104 80 120 <br />Oualifiers: <br />RL - Analyze reporting limit. <br />MDC - Minimum delectable concentration <br />NO - Not detected at the reporting limit. <br />Page 7 of 25