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www.energylab.com Helena, MT 877-472-0711 • Billings, MT 800.735-4489 • Casper, WY 888-235-0515 <br />- , • _ .: <br />Ans"calExce9encoSince 1951 Gillette, WY 866-686-7175 + Rapid City, SD 888-672-1225 • College Station, TX 888-690-2218 <br />1, , f <br />LABORATORY ANALYTICAL REPORT <br />Client: Cotter Corporation Report Date: 09/10/10 <br />Project: Schwartzwalder Water Monitoring Program Collection Date: 08/10/10 13:45 <br />Lab ID: C10080420-001 DateReceived: 08/11/10 <br />Client Sample ID: Dis-001 A (S25351) Matrix: Aqueous <br />MCL/ <br />Analyses Result Units Qualifiers RL QCL Method Analysis Date / By <br />METALS-TOTAL <br />Uranium ND mg/L 0.0003 E200.8 08/18/10 20:32 / sml <br />METALS - POTENTIALLY DISSOLVED <br />Uranium ND mg/L <br />0.0003 E200.8 09/10/10 03:52 / sml <br />RADIONUCLIDES - TOTAL <br />Radium 226 9.3 pCi/L E903.0 08/29/10 12:51 / trs <br />Radium 226 precision (±) 0.72 pCi/L E903.0 08/29/10 12:51 / trs <br />Radium 226 MDC 0.22 pCi/L E903.0 08/29/10 12:51 / trs <br />Radium 228 -0.4 pCi/L U RA-05 08/24/10 13:31 / plj <br />Radium 228 precision (±) 0.91 pCi/L RA-05 08/24/10 13:31 / plj <br />Radium 228 MDC 1.6 pCi/L RA-05 08/24/10 13:31 / plj <br />FIELD PARAMETERS <br />Conductivity 1317 umhos/cm FIELD 08/10/1013:45/"' <br />Flow 27 gpm FIELD 08/10/10 13:45 / ""' <br />pH 7.22 s.u. FIELD 08/10/10 13:45 <br />Temperature 21.4 'C FIELD 08/10/1013:45 <br />"' Performed by Sampler <br />Report RL - Analyte reporting limit. <br />Definitions: QCL - Quality control limit. <br />MDC - Minimum detectable concentration <br />MCL - Maximum contaminant level. <br />ND - Not detected at the reporting limit. <br />U - Not detected at minimum detectable concentration <br />Page 2 of 8