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.. --. _._.... <br />• wtivw.energylab.com Helena, MT B77-472-071 I Billings, MT 800-735-4489 • Casper, WY 888-235-0515 <br />F- - MsQ7lca7ErceUsaceSince 7951 Gillette, WY 868.868 7175 • Rapid City, 50 868-872-1225 • College Station, TX 888-690-2218 <br />LABORATORY ANALYTICAL REPORT <br />Client: Cotter Corporation Report Date: 12/10/10 <br />Project: Schwartzwalder Water Monitoring Program - SW Collection Date : 11/03/10 09:55 <br />Lab ID: 010110203-005 DaleReceived : 11/04/10 <br />Client Sample ID: SW OS Matrix : Aqueous <br /> MCL/ <br />Analyses Result Units Qualifiers RL QCL Method Analysis Date / By <br />METALS-TOTAL <br />Molybdenum ND mg/L 0.005 E200.8 12/03/10 03:49 / sml <br />Silver 0.00013 mg/L 0.00005 E200.8 12/03/10 03:49 / sml <br />Thallium 0.0011 mg/L 0.0002 E200.8 12103il0 03:491 sml <br />Uranium 0.0983 mg/L 0.0002 E200.8 12/03/10 03:49! sml <br />Zinc NO mg/L 0.005 E200.8 12/03110 03:491 sml <br />RADIONUCLIDES - DISSOLVED <br />Radium 226 0.29 pCi/L E903.0 11/17/10 15:08 / jb <br />Radium 226 precision (±) 0.17 pCi/L E903.0 11/17/10 15:08 / jb <br />Radium 226 MDC 0.21 pCi/L E903.0 I1/17,1015:081jb <br />RADIONUCLIDES - TOTAL <br />Gross Alpha 54.9 pCi/L E900.0 11 /25/10 10:27 J ep <br />Gross Alpha precision (±) 3.2 pCi/L E900.0 11 /25/10 10:27 / ep <br />Gross Alpha MDC 2.2 pCi/L E900.0 11/25/10 10:271 ep <br />Gross Beta 23.4 pCi/L E900.0 11125/10 10:271 ep <br />Gross Beta precision (t) 1.9 pCi/L E900.0 11/25/10 10:27J ep <br />Gross Beta MDC 2.5 pCi/L E900.0 11/25/10 10:271 ep <br />Radium 226 0.27 pCVL E903.0 11/29/10 22:52 / Irs <br />Radium 226 precision (t) 0.14 pCi/L E903.0 11/29110 22:52 / Irs <br />Radium 226 MDC 0.17 pCi/L E903.0 11129/10 22:52 / trs <br />Radium 228 1.2 pCi/L RA-05 11/23/10 10:35 / plj <br />Radium 228 precision (t) 0.67 pCi/L RA-05 11/23/10 10:35 / plj <br />Radium 228 MDC 1.0 pCi/L RA-05 11/23/10 10:35 / plj <br />DATA QUALITY <br />A/C Balance (t 5) -1.18 % Calculation 12105110 10:25! kbh <br />Anions 3.66 meq/L Calculation 12/05/1010:25 / kbh <br />Cations 3.57 meq/L Calculation 12/05/1 D 10:25 / kbh <br />Solids, Total Dissolved Calculated 214 mg/L Calculation 12/05/10 10:25 / kbh <br />TDS Balance (0.80 - 1.20) 1.22 Calculation 12/05/10 10:25 / kbh <br />FIELD PARAMETERS <br />Conductivity 380 umhos/cm FIELD 11103/10 10:10/ <br />pH 7.48 s.u. FIELD 11/03/10 10:10 / <br />Temperature 6.3 `C FIELD 1ii0311010:10/ <br />Performed by Sampler <br />Report AL - Analyle 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 10 of 43 <br />