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wnwenergylA= '?: { -.Helena, MT 877-472-0711 • Billings, Mie90-735-4489 • Casper,WY888-235-0515 <br />Ae IatFshsAibasau tiu E866'G66 1175'• Rapid City, so 888-672-1225 • College Station, TX $68-680-2218 <br /> LABORATORY ANALYTICAL REPORT <br /> Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 04/25/11 <br />Project: Schwartz-GW 03/30/ 11 S25671 & S25672 Collection Date: 03/30/11 11:05 <br />Lab ID: C11030940-002 DateReceived: 03/31/11 <br />Client Sample ID: MW-7 (S25672) Matrix: Aqueous <br /> MCL/ <br />Analyses <br />Result Units Qualifier RL <br />QCL Method Analysis Date / By <br /> <br />RADIONUCLIDES - TOTAL <br />Gross Alpha 2300 pCi/L E900.0 04/12/11 01:21 / ep <br />Gross Alpha precision (±) 28.4 pCi/L E900.0 04/12/11 01:21 / ep <br />Gross Alpha MDC 4.0 pCi/L E900.0 04/12/11 01:21 / ep <br />Gross Beta 521 pCi/L E900.0 04/12/11 01:21 / ep <br />Gross Beta precision (±) 7.1 pCi/L E900.0 04/12/11 01:21 / ep <br />Gross Beta MDC 3.8 pCi/L E900.0 04/12/11 01:21 / ep <br />DATA QUALITY <br />A/C Balance (± 5) -1.27 % Calculation 04/12/11 12:50 /kbh <br /> 11 <br />5 meq/L Calculation 04/12/11 12:50 /kbh <br />Anions . <br />11 <br />2 meq/L Calculation 04112111 12:50 / kbh <br />Cations <br />Total Dissolved Calculated <br />Solids . <br />699 mg/L Calculation 04/12/11 12:50 / kbh <br />, <br />TDS Balance (0.80 - 1.20) 1.07 Calculation 04/12/11 12:50 / kbh <br />FIELD PARAMETERS <br />Depth to Water 6.74 feet FIELD 03/30/11 11:15 / **" <br />Field Conductivity 1021 umhos/cm FIELD 03/30/11 11:15 <br />Flow 0.56 gpm FIELD 03/30/11 11:15 <br />** <br />pH 7.25 s.u. FIELD 03/30/11 11:15 / * <br /> 6 <br />0 °C FIELD 03/30/11 11:15 <br />Temperature . <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 6 of 24