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• www.ertergyiab.com Helena, MT 877-472-0711 0 Billings, MT 800735-4489 • Casper, WY 688-235-0515 <br />• - Aes"Calfxcelkwo$;ace Im Gillette, WY 866-686-7175 • Rapid City, SD 888-672-1225 • College Station, TX 888-690-2218 <br />.. __._ <br />LABORATORY ANALYTICAL REPORT <br />Client: Cotter Corporation Report Date: 09/09/10 <br />Project: Schwartzwalder Water Monitoring Program Collection Date: 08/17/10 <br />Lab ID: C10080639-001 DateReceived: 08/18/10 <br />Client Sample ID: DIS-001A (S25451) Matrix: Aqueous <br /> MCL/ <br />Analyses Result Units Qualifiers RL QCL Method Analysis Date / By <br />RADIONUCLIDES - DISSOLVED <br />Radium 226 5.8 pCi/L E903.0 08/30/10 12:08 / dmf <br />Radium 226 precision (±) 0.46 pCi/L E903.0 08/30/10 12:08 / dmf <br />Radium 226 MDC 0.13 pCi/L E903.0 08/30/10 12:08 / dmf <br />O <br />RADIONUCLIDES - TOTAL <br />Radium 226 5.2 pCi/L <br />Radium 226 precision (±) 0.46 pCi/L <br />Radium 226 MDC 0.17 pCi/L <br />Radium 228 0.66 pCi/L <br />Radium 228 precision (±) 0.69 pCi/L <br />Radium 228 MDC 1.1 pCi/L <br />FIELD PARAMETERS <br />Conductivity <br />Flow <br />pH <br />Temperature <br />"' Performed by Sampler <br />E903.0 <br />E903.0 <br />E903.0 <br />U RA-05 <br />RA-05 <br />RA-05 <br />09/08/10 00:43 / dmf <br />09/08/10 00:43 / dml <br />09/08/10 00:43 / dml <br />09/01/10 11:45 / plj <br />09/01/10 11:45 / plj <br />09/01/10 11:45 / plj <br />1015 umhos/cm FIELD 08/17/10 00:00 / bal <br />66 gpm FIELD 08/17/10 00:00 / bal <br />7.24 s.u. FIELD 08/17/10 00:00 / bal <br />17.8 °C FIELD 08/17/10 00:00 / bal <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 4 of 21