2013-11-26_HYDROLOGY - M1977300 (4)

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• www.dwziab.com News, W 877.472 -0711 • Billings, W 808- 735 -4489 • Casper, WY 868 -235 -0515 Au' Eadaw "b" I Gillette, WY 866-686 -7175 • Rapid City, SO 886 -672 -1225 • College Station, TX 888-690 -2218 Client: Project: Lab ID: Client Sample ID Analyses MAJOR IONS LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Cotter Corporation Schwartz GW 9/23/13 S27095 C13090867 -001 MW -20 (S27095) Result Units Report Date: 10/22/13 Collection Date: 09/23/13 13:00 DateRece ived: 09/24/13 Matrix: Aqueous MCL/ Qualifiers RL QCL Method Analysis Date / By Alkalinity, Total as CaCC3 118 mg /L 1 A2320 B 09/24/13 1943 / jba Bicarbonate as HCO3 145 mg /L 1 A2320 B 09/24/13 19:43 / tba Calcium 73.1 mg /L 01 E200.7 10/02/13 19:21 / sf Chloride 20 mg /L 3 E300.0 09/25/13 11:31 / we Magnesium 74.5 mg /L 0.1 E200.7 10/02/13 19:21 / sf Nitrogen, Nitrate +Nitrite as N 0.7 mg /L 0.1 E353.2 10/02/13 09:23 / eli -b Phosphorus, Total as P 1.19 mg /L 0.01 E365.1 09/29/13 17:29 / eli -b Potassium 10.7 mg /L 0.1 E200.7 10/02/13 19:21 / sf Sodium 15.4 mg /L D 0.4 E200.7 10/02/13 19:21 / sf Sulfate 353 mg /L 5 E300.0 09/25/13 11:31 / we PHYSICAL PROPERTIES Solids, Total Dissolved TDS @ 180 C 674 mg /L 10 A2540 C 09/24/13 15:39 / tmm METALS - DISSOLVED Aluminum ND mg /L 0.2 E200.7 10/02/13 19:21 / sf Antimony 0.001 mg /L 0.001 E200.8 10/10/13 19:31 / cp Copper 0.004 mg /L 0.001 E200.8 10/10/13 19:31 / cp Iron 0.05 mg /L 0.03 E200.7 10/02/13 19:21 / sf Manganese ND mg /L 0.005 E200.7 10/02/13 19:21 / sf Molybdenum 0.275 mg /L D 0.006 E200.7 10/02/13 19:21 / sf Thallium ND mg /L 0.0002 E200.8 10/10/13 19:31 / cp Uranium 3.0 mg /L D 0.6 E200.7 10/02/13 19:21 / sf Zinc 0.014 mg /L 0.005 E200.7 10/02/13 19:21 / sf METALS - TOTAL Aluminum 8.8 mg /L 0.2 E200.7 09/27/13 21:59 / sf Antimony 0.002 mg /L 0.001 E200.8 10/11/13 01:59 / cp Arsenic 0.007 mg /L 0.001 E200.8 10/11/13 01:59 / cp Copper 0.078 mg /L 0.001 E200.7 09/27/13 21.59 / sf Iron 16.4 mg /L 0.03 E200.7 09/27/13 21:59 / sf Lead 0.044 mg /L 0.005 E200.8 10/11/13 01:59 / cp Manganese 1.33 mg /L 0.005 E200.7 09/27/13 21:59 / sf Mercury ND mg /L 00001 E245.1 09/27/13 15:16 / kja Silver 0.00016 mg /L D 0.00008 E200.8 10/17/13 16:15 / cp Thallium 0.0006 mg /L 00002 E200.8 10/11/13 01:59 / cp Zinc 0.175 mg /L 0.005 E200.7 09/27/13 21:59 / sf RADIONUCLIDES - DISSOLVED Radium 226 1.7 pCi /L E903.0 10/07/13 22:36 / Imc Radium 226 precision ( ±) 0.26 pCi /L E903.0 10/07/13 22:36 / Imc Radium 226 MDC 0.15 pCi /L E903.0 10/07/13 22:36 / Imc Report RL - Analyte reporting limit. MCL - Maximum contaminant level. Definitions: QCL - Quality control limit. ND - Not detected at the reporting limit. MDC - Minimum detectable concentration D - RL increased due to sample matrix. Page 3 of 21