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\ www.ertrdab.com � Helena, MT 877- 472 -0711 a Billings, MT 600- 735 -4489 a Casper, WY 888 - 235 -0515 <br />Gillette, WY 866 -686 -7175 a Rapid City, SO 888 -672 -1225 a College Station, TX 888- 690 -2218 <br />LABORATORY ANALYTICAL REPORT <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Project: Schwartz GW 06/07/13 S26942 & S26943 <br />Lab ID: 013060291 -002 <br />Client Sample ID: Sump - 1 (S- 26943) <br />Analyses Result Units Qualifiers RL <br />Report Date: 07/05/13 <br />Collection Date: 06/07/13 08:45 <br />DateReceived: 06/10/13 <br />Matrix: Aqueous <br />MCL/ <br />QCL Method Analysis Date / By <br />RADIONUCLIDES - DISSOLVED <br />Radium 226 <br />4.0 <br />pCi /L <br />E903.0 <br />06/19/13 15:25 / trs <br />Radium 226 precision ( ±) <br />0.42 <br />pCi /L <br />E903.0 <br />06/19/13 15:25 / trs <br />Radium 226 MDC <br />0.20 <br />pCi /L <br />E903.0 <br />06/19/13 15:25 / trs <br />RADIONUCLIDES - TOTAL <br />Gross Alpha <br />2610 <br />pCi /L <br />E900.0 <br />06/25/13 09:04 / Ibb <br />Gross Alpha precision ( ±) <br />24.0 <br />pCi /L <br />E900.0 <br />06/25/13 09:04 / Ibb <br />Gross Alpha MDC <br />3.6 <br />pCi /L <br />E900.0 <br />06/25/13 09.04 / Ibb <br />Gross Beta <br />608 <br />pCi /L <br />E900.0 <br />06/25/13 09:04 / Ibb <br />Gross Beta precision ( ±) <br />9.4 <br />pCi /L <br />E900.0 <br />06/25/13 09:04 / Ibb <br />Gross Beta MDC <br />4.5 <br />pCi /L <br />E900.0 <br />06/25/13 09:04 / Ibb <br />DATA QUALITY <br />A/C Balance ( ±5) <br />-1.20 <br />% <br />A1030 E <br />06/21/13 07:43 / kbh <br />Anions <br />16.0 <br />meq /L <br />A1030 E <br />06/21/13 07:43 / kbh <br />Cations <br />15.6 <br />meq /L <br />A1030 E <br />06/21/13 07:43 / kbh <br />Solids, Total Dissolved Calculated <br />990 <br />mg /L <br />A1030 E <br />06/21/13 07:43 / kbh <br />TDS Balance (0.80 - 1.20) <br />1.04 <br />A1030 E <br />06/21/13 07:43 / kbh <br />FIELD PARAMETERS <br />Depth to Water <br />3.5 <br />feet <br />FIELD <br />06/07/13 08:45 <br />Field Conductivity <br />1350 <br />umhos /cm <br />FIELD <br />06/07/13 08.45 <br />Field pH <br />7.26 <br />s.u. <br />FIELD <br />06/07/13 08 45 <br />Field Temperature, C <br />12.5 <br />°C <br />FIELD <br />06/07/13 08.45 <br />Flow <br />22 <br />gpm <br />FIELD <br />06/07/13 08:45 <br />" "" Field data provided by client <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 />