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• www.enerdab.com Helena, MT 877- 472 -0711 - Billings, MT 800 -735 -4489 - Casper, WY 888- 235 -0515 <br />�- An"Mfies#MWRM 1152 Gillette, WY 866 - 686.7175 - Rapid City, SD 888 -672 -1225 - College Station, TX 888- 690 -2218 <br />LABORATORY ANALYTICAL REPORT <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Report Date: 02/13/13 <br />Project: Schwartz GW 1/24/13 <br />S26788 <br />Collection <br />Date: 01/24/13 12:20 <br />Lab ID: C13010781 -001 <br />DateReceived: <br />01/25/13 <br />Client Sample ID: Mine Refill (S26788) <br />Matrix: Aqueous <br />MCL/ <br />Analyses <br />Result <br />Units Qualifiers RL <br />QCL Method <br />Analysis Date / By <br />RADIONUCLIDES - DISSOLVED <br />Radium 226 <br />237 <br />pCi /L <br />E903.0 <br />02/04/13 22:12 / Imc <br />Radium 226 precision ( ±) <br />3.0 <br />pCi /L <br />E903.0 <br />02/04/13 22:12 / Imc <br />Radium 226 MDC <br />0.18 <br />pCi /L <br />E903.0 <br />02/04/13 22:12 / Imc <br />RADIONUCLIDES - TOTAL <br />Gross Alpha <br />17700 <br />pCi /L <br />E900.0 <br />02/01/13 16:48 / Ibb <br />Gross Alpha precision ( ±) <br />105 <br />pCi /L <br />E900.0 <br />02/01/13 16:48 / Ibb <br />Gross Alpha MDC <br />11.6 <br />pCi /L <br />E900.0 <br />02/01/13 16:48 / Ibb <br />Gross Beta <br />4500 <br />pCi /L <br />E900.0 <br />02/01/13 16:48 / Ibb <br />Gross Beta precision ( ±) <br />42.5 <br />pCi /L <br />E900.0 <br />02/01/13 16:48 / Ibb <br />Gross Beta MDC <br />14.9 <br />pCi /L <br />E900.0 <br />02/01/13 16:48 / Ibb <br />DATA QUALITY <br />A/C Balance (± 5) <br />- 0.468 <br />% <br />A1030 E <br />02/04/13 09:12 / kbh <br />Anions <br />46.1 <br />meq /L <br />A1030 E <br />02/04/13 09:12 / kbh <br />Cations <br />45.7 <br />meq /L <br />A1030 E <br />02/04/13 09:12 / kbh <br />Solids, Total Dissolved Calculated <br />2900 <br />mg /L <br />A1030 E <br />02/04/13 09:12 / kbh <br />TDS Balance (0.80 - 1.20) <br />1.08 <br />A1030 E <br />02/04/13 09:12 / kbh <br />FIELD PARAMETERS <br />Field Conductivity <br />3240 <br />umhos /c <br />FIELD <br />01/24/13 12:20 <br />Field pH <br />7.08 <br />s.u. <br />FIELD <br />01/24/13 12:20 <br />Field Temperature, C <br />12.6 <br />`C <br />FIELD <br />01/24/13 12:20 <br />Flow <br />1.86 <br />gpm <br />FIELD <br />01/24/13 12:20 <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 4 of 24 <br />