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wwaenergylab.eom <br />Aeal?kdEo;aDaocrShea f9NiY <br />Helena, W 877472-0711 • Billings, W 800-7354489 • Casper, WY 888-235-0515 <br />Gillette, WY 866-686-7175 • Rapid City, SD 886-672-1225 • College Station, TX 888-690-2218 <br />LABORATORY ANALYTICAL REPORT <br />Client: Cotter Corporation <br />Project: Schwartzwalder Water Monitoring Program <br />Lab ID: C10070865-001 <br />Client Sample ID: Orange Pipe Report Date: 08/15/10 <br />Collection Date: 07/20/10 09:10 <br />DateReceived: 07/22/10 <br />Matrix: Aqueous <br /> MCL/ <br />Analyses Result Units Qualifiers RL QCL Method Analysis Date / By <br />RADIONUCLIDES - DISSOLVED <br />Radium 226 1.5 pCi/L E903.0 08/03/10 15:32 / trs <br />Radium 226 precision (±) 0.21 pCi/L E903.0 08/03/10 15:32 / trs <br />Radium 226 MDC 0.14 pCi/L E903.0 08/03/10 15:32 / trs <br />RADIONUCLIDES - TOTAL <br />Gross Alpha 31100 pCi/L E900.0 08/04/10 12:30 / cgr <br />Gross Alpha precision (±) 210 pCi/L E900.0 08/04/10 12:30 / cgr <br />Gross Alpha MDC 16.3 pCi/L E900.0 08/04/10 12:30 / cgr <br />Gross Beta 6290 pCi/L E900.0 08/04/10 12:30 / cgr <br />Gross Beta precision (±) 43.4 pCi/L E900.0 08/04/10 12:30 / cgr <br />Gross Beta MDC 13.3 pCi/L E900.0 08/04/10 12:30 / cgr <br />DATA QUALITY <br />A/C Balance (± 5) -2.93 % Calculation 08/15/10 13:26 / sdw <br />Anions 49.9 meq/L Calculation 08/15/10 13:26 / sdw <br />Cations 47.0 meq/L Calculation 08/15/10 13:26 / sdw <br />Solids, Total Dissolved Calculated 3060 mg/L Calculation 08/15/10 13:26 / sdw <br />TDS Balance (0.80 - 1.20) 1.04 Calculation 08/15/10 13:26 / sdw <br />FIELD PARAMETERS <br />Conductivity 3320 umhos/cm FIELD 07/20/10 09:10 <br />Flow 1.59 gpm FIELD 07/20/10 09:10 <br />pH 6.71 s.u. FIELD 07/20/10 09:10 <br />Temperature 12.4 °C FIELD 07/20/10 09:10 <br />"' Performed by Sampler <br />Report RL - Analyte reporting limit. MCL - Maximum contaminant level. <br />Definitions: QCL - Quality control limit. ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration <br />Page 4 of 25