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WWWAnergyl8b.Wm <br />AiraryWEleaSge/ IM <br />c eha, Mf 877-472-0711 • Billings, I f 800-735-4419 • Casper, WY 888-235-0515 <br />d66?h66-7175 • Rapid City, so 888-672-1225 • College Station, 7x 888-690-1218 <br /> LABORATORY ANALYTICAL REPORT <br /> Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 03/01/11 <br />Project: Schwartz GW 01/27/10 S25575-S25576 Collection Date: 01/27/11 10:25 <br />Lab ID: C1 1010885-001 DateReceived: 01/31/11 <br />Client Sample ID: MW-1 (S25575) Matrix: Aqueous <br /> MCL/ <br />Analyses Result Units Qualifiers RL QCL Method Analysis Date / By <br />RADIONUCLIDES - TOTAL <br />Gross Alpha 156 pCi/L E900.0 02/12/11 13:25 / ep <br />Gross Alpha precision (±) 4.5 pCi/L E900.0 02/12/11 13:25 / ep <br />Gross Alpha MDC 1.7 pCi/L E900.0 02/12/11 13:25 / ep <br />Gross Beta 61.1 pCi/L E900.0 02/12/11 13:25 / ep <br />Gross Beta precision (±) 2.3 pCi/L E900.0 02/12/11 13:25 / ep <br />Gross Beta MDC 2.3 pCi/L E900.0 02/12/11 13:25 / ep <br />DATA QUALITY <br />A/C Balance (± 5) -2.14 % Calculation 02/16/11 13:11 / kbh <br />Anions 3.02 meq/L Calculation 02/16/11 13:11 / kbh <br />Cations 2.90 meq/L Calculation 02/16/11 13:11 / kbh <br />Solids, Total Dissolved Calculated 176 mg/L Calculation 02/16/11 13:11 / kbh <br />TDS Balance (0.80 - 1.20) 1.02 Calculation 02/16/11 13:11 / kbh <br />FIELD PARAMETERS <br />Conductivity 316 umhos/cm FIELD 01/27/1110:25/ <br />Depth to Water 13.3 feet FIELD 01/27/11 10:25 / <br />Flow 0.58 gpm FIELD 01/27/11 10:25 / <br />pH 7.16 s.u. FIELD 01/27/11 10:25 / <br />Temperature 4.2 °C FIELD 01/27/1110:25/ <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 />Page 4 of 24 <br />