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• www.enc dab.com „IlPfena Mi 877-472-0711 • Billings, NT 800-735-4489 • Casper, M 888-235-9515 <br />AmO&MEM&M SAW IM ' e Qa666-7175 Rapid City, sD 888-672-1225 • College station, 7X 888-690-2218 <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: 01/28/11 10:30 <br />Lab ID: Cl 1 01 0885-002 DateReceived: 01/31/11 <br />Client Sample ID: MW-2 (S25576) Matrix: Aqueous <br /> MCL/ <br />Analyses Result Units Qualifiers RL QCL Method Analysis Date / By <br />RADIONUCLIDES - TOTAL <br />Gross Alpha 30.1 pCi/L E900.0 02/12/11 13:25 / ep <br />Gross Alpha precision (±) 2.2 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 12.5 pCi/L E900.0 02/12/11 13:25 / ep <br />Gross Beta precision (±) 1.6 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) -2.73 % Calculation 02/16/11 13:12 / kbh <br />Anions 2.91 meq/L Calculation 02/16/11 13:12 / kbh <br />Cations 2.75 meq/L Calculation 02/16/11 13:12 / kbh <br />Solids, Total Dissolved Calculated 173 mg/L Calculation 02/16/11 13:12 / kbh <br />TDS Balance (0.80 - 1.20) 1.03 Calculation 02/16/11 13:12 / kbh <br />FIELD PARAMETERS <br />Conductivity 307 umhos/cm FIELD 01/28/11 10:30/*** <br />Depth to Water 10.83 feet FIELD 01/28/11 10:30/*** <br />Flow 0.58 gpm FIELD 01/28/11 10:30 / * - <br />pH 7.19 s.u. FIELD 01/28/11 10:30 / - <br />Temperature 4.3 °C FIELD 01/28/1110:30/- <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 6 of 24 <br />