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ENERGY <br />Analyses <br />Report <br />Definitions: <br />www.energylab.com <br />Aarytlal fxesaane NM 1952 <br />LABORATORY ANALYTICAL REPORT <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 01/30/12 <br />Project: Schwartz GW 12/29/11 S26170- S26171 Collection Date: 12/29/11 12:20 <br />Lab ID: C11120864-002 DateReceived: 12/30/11 <br />Client Sample ID: MW -7 (S26171) Matrix: Aqueous <br />RL - Analyte reporting limit. <br />QCL - Quality control limit. <br />MDC - Minimum detectable concentration <br />Helena, 877 - 472 -0111 • Billings, MT B01 - 735 - 4489 • Casper, WY 888 - 235 - 0515 <br />Gillette, WY 866 -686 -7175 • Rapid City, SD 888 - 672 -1225 • College Station, Tx 888 -600 -2218 <br />Result Units Qualifiers RL <br />MCL/ <br />QCL Method <br />RADIONUCLIDES - TOTAL <br />Gross Alpha 4070 pCi /L E900 0 01/18/12 12.44 / ep <br />Gross Alpha precision ( ±) 40.1 pCi /L E900.0 01/18/12 12:44 / ep <br />Gross Alpha MDC 4.9 pCi /L E900.0 01/18/12 12 44 / ep <br />Gross Beta 736 pCi /L E900.0 01/18/12 12.44 / ep <br />Gross Beta precision ( ±) 7.8 pCi /L E900.0 01/18/12 12:44 / ep <br />Gross Beta MDC 3 4 pCi /L E900.0 01/18/12 12:44 / ep <br />DATA QUALITY <br />A/C Balance (± 5) 0.0415 % Calculation 01/25/12 07:20 / kbh <br />Anions 10.2 meq /L Calculation 01/25/12 07:20 / kbh <br />Cations 10.2 meq /L Calculation 01/25/12 07:20 / kbh <br />Solids, Total Dissolved Calculated 629 mg /L Calculation 01/25/12 07:20 / kbh <br />TDS Balance (0.80 - 1.20) 1.07 Calculation 01/25/12 07.20 / kbh <br />FIELD PARAMETERS <br />Depth to Water 7 feet FIELD 12/29/11 12:20 / * ** <br />Field Conductivity 953 umhos /cm FIELD 12/29/11 12:20 / * <br />Field pH 7.35 s.u. FIELD 12/29/11 12:20 / * ** <br />Field Temperature, C 5.5 °C FIELD 12/29/11 12:20 / * ** <br />Flow 0.63 gpm FIELD 12/29/11 12:20 / * ** <br />* ** Performed by Sampler <br />MCL - Maximum contaminant level. <br />ND - Not detected at the reporting limit. <br />Analysis Date / By <br />Page 6 of 24 <br />