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►��-, �,`' www.ener6ob.com Helena, MT 677 -472 -0711 • Billings, MT 800- 735 -4469 • Casper, Wy 888 - 235 -0515 <br />A A~ E=k=S" fry Gillette, WY 866- 666 -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 />Project: Schwartz GW 5/15/2013 S26920 & S26921 <br />Lab ID: C13050697 -001 <br />Client Sample ID: MW 13 (S26921) <br />Analyses <br />Result Units Qualifiers RL <br />Report Date: 06/18/13 <br />Collection Date: 05/15/13 16:26 <br />DateReceived: 05/17/13 <br />Matrix: Aqueous <br />MCL/ <br />QCL Method Analysis Date / By <br />RADIONUCLIDES - TOTAL <br />Gross Alpha <br />26.8 <br />pCi /L <br />E900.0 <br />06/04/13 17:36 / Ibb <br />Gross Alpha precision ( ±) <br />2.0 <br />pCi /L <br />E900.0 <br />06/04/13 17:36 / Ibb <br />Gross Alpha MDC <br />1.7 <br />pCi /L <br />E900.0 <br />06/04/13 17:36 / Ibb <br />Gross Beta <br />10.4 <br />pCi /L <br />E900 0 <br />06/04/13 17:36 / Ibb <br />Gross Beta precision ( ±) <br />1.8 <br />pCi /L <br />E900.0 <br />06/04/13 17:36 / Ibb <br />Gross Beta MDC <br />2.7 <br />pCi /L <br />E900.0 <br />06/04/13 17:36 / Ibb <br />DATA QUALITY <br />A/C Balance ( ±5) <br />0.649 <br />% <br />A1030 E <br />05/29/13 16:51 / sdw <br />Anions <br />4.93 <br />meq /L <br />A1030 E <br />05/29/13 16:51 / sdw <br />Cations <br />5.00 <br />meq /L <br />A1030 E <br />05/29/13 16:51 / sdw <br />Solids, Total Dissolved Calculated <br />300 <br />mg /L <br />A1030 E <br />05/29/13 16:51 / sdw <br />TDS Balance (0.80 - 1.20) <br />0.980 <br />A1030 E <br />05/29/13 16:51 / sdw <br />FIELD PARAMETERS <br />Field Conductivity <br />475 <br />umhos /cm <br />FIELD <br />05/15/13 16:26 / — <br />Field pH <br />7.49 <br />s.u. <br />FIELD <br />05/15/13 16:26 / — <br />Field Temperature, C <br />10.6 <br />°C <br />FIELD <br />05/15/13 16:26 / — <br />Field data provided by client <br />Report RL - Analyte reporting limit. <br />MCL - Maximum contaminant level. <br />Definitions: QCL - Quality control limit. <br />ND - Not detected at the reporting <br />limit. <br />MDC - Minimum detectable concentration <br />Page 4 of 24 <br />