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riwwAnerdaDcom <br />s H?Yn?1T 877-472-0711 • Billings Aff 800-735-4419 • Casper wYBSa-235.1513 <br />Mf4daffieawlrwSNwfl?t ?9'-7175 • Rapid City, SD 888-672-1225 • College Station, TX 8111-610.2218 <br /> LABORATORY ANALYTICAL REPORT <br /> Prep ared by Cas per, WY Branch <br />Client: Cotter Corporation Report Date: 04/11 /11 <br />Project: Schwartz-SW 3/10/2011 S25686-S25688 Collectio n Date: 03/10/11 09:40 <br />Lab ID: C11030378-003 DateReceived: 03/11/11 <br />Client Sample ID: SW LLHG (S25688) Matrix: Aqueous <br /> MCL/ <br />Analyses Result Units Qualifiers RL QCL Method Analysis Date / By <br />METALS-TOTAL <br />Mercury ND mg/L 0.0001 E245.1 03/15/11 14:02 / rdw <br />Molybdenum 0.012 mg/L 0.005 E200.8 03/30/11 17:53 / sml <br />Silver ND mg/L 0.00005 E200.8 03/30/11 17:53 / sml <br />Thallium ND mg/L 0.0002 E200.8 03/24/11 03:36 / sml <br />Uranium 0.241 mg/L 0.0002 E200.8 03/24/11 03:36 / sml <br />Zinc ND mg/L 0.005 E200.8 03/29/11 00:45 / sml <br />RADIONUCLIDES - DISSOLVED <br />Radium 226 0.79 pCi/L E903.0 03/21/11 20:55 / trs <br />Radium 226 precision (±) 0.20 pCi/L E903.0 03/21/11 20:55 / trs <br />Radium 226 MDC 0.15 pCi/L E903.0 03/21/11 20:55 / trs <br />RADIONUCLIDES - TOTAL <br />Gross Alpha 191 pCi/L E900.0 03/17/11 10:18 / ep <br />Gross Alpha precision (±) 6.1 pCi/L E900.0 03/17/11 10:18 / ep <br />Gross Alpha MDC 2.1 pCi/L E900.0 03/17/11 10:18 / ep <br />Gross Beta 31.6 pCi/L E900.0 03/17/11 10:18 / ep <br />Gross Beta precision (±) 2.0 pCi/L E900.0 03/17/11 10:18 / ep <br />Gross Beta MDC 2.5 pCi/L E900.0 03/17/11 10:18 / ep <br />Radium 226 0.55 pCi/L E903.0 04/05/11 08:41 / trs <br />Radium 226 precision (±) 0.13 pCi/L E903.0 04/05/11 08:41 / trs <br />Radium 226 MDC 0.09 pCi/L E903.0 04/05/11 08:41 / trs <br />Radium 228 0.90 pCi/L U RA-05 03/29/11 12:00 / plj <br />Radium 228 precision (±) 0.63 pCi/L RA-05 03/29/11 12:00 / pij <br />Radium 228 MDC 0.99 pCi/L RA-05 03/29/11 12:00 / plj <br />DATA QUALITY <br />A/C Balance (± 5) 2.49 % Calculation 04/07/11 09:56 / kbh <br />Anions 4.76 meq/L Calculation 04/07/11 09:56 / kbh <br />Cations 5.01 meq/L Calculation 04/07/11 09:56 / kbh <br />Solids, Total Dissolved Calculated 296 mg/L Calculation 04/07/11 09:56 / kbh <br />TDS Balance (0.80 - 1.20) 1.16 Calculation 04/07/11 09:56 / kbh <br />FIELD PARAMETERS <br />Conductivity <br />pH <br />Temperature <br />"' Performed by Sampler <br />Report RL - Analyte reporting limit. <br />Definitions: QCL - Quality control limit. <br />MDC - Minimum detectablE <br />508 umhos/cm FIELD 03/10/11 09:40 / <br />7.48 s.u. FIELD 03/10/11 09:40 / <br />3.4 °C FIELD 03/10/11 09:40 / <br />MCL - Maximum contaminant level. <br />ND - Not detected at the reporting limit. <br />concentration U - Not detected at minimum detectable concentration <br />Page 6 of 29