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Table 6.Logan Wash Mine Retort Water Analytical Data <br /> SamplelD LW-RETORT LW-RETORT LW-RETORT LW-RETORT LW-RETORT LW-RETORT LW-RETORT LW-RETORT LW-RETORT LW-RETORT <br /> SampleDate 5/11/2011 10/19/2011 6/14/2012 10/24/2012 5/28/2013 10/24/2013 5/21/2014 10/22/2014 5/12/2015 10/14/2015 <br /> Parameters Units <br /> Metals <br /> Silicon(Dissolved) ug/L 9590 9600 11000 9100 12000 J 8900 11000 8100 7900 8500 <br /> Silver ug/L --- --- --- --- --- --- --- --- --- --- <br /> Silver(Dissolved) ug/L --- --- --- --- --- --- -- <br /> Sodium ug/L --- --- --- --- --- --- --- -- <br /> Sodium(Dissolved) ug/L 1250000 1300000 1400000 1300000 1700000.1 1500000 1400000 1200000 1500000 1300000 <br /> Strontium ug/L --- --- --- --- --- --- --- --- --- --- <br /> Strontium(Dissolved) ug/L 1780 1800 2300 1900 2400 J 2600 2400 1900 1600 1900 <br /> Uranium(Dissolved) ug/L --- --- --- --- --- --- --- -- <br /> Zinc ug/L --- --- --- --- --- --- --- --- -- <br /> Zinc(Dissolved) ug/L 2 J 5 U 5.4 U 5 U 25 U J 25 U 5 U 25 JB 1.11 15 JB <br /> Volatile Organic Compounds-BTEX <br /> Benzene ug/L 4.1 2.5 2.5 2.4 J 2.1 6.7 10 0.751 4.91 5 U <br /> Ethylbenzene ug/L 1.9 1.6 1.6 1.11 1.1 1.9 3 1 U 3.6 J 5 U <br /> Toluene ug/L 3.1 1.4 1.8 1 J 1.1 7.6 12 1 U 5 U 5 U <br /> Xylenes,Total ug/L 12 9.6 11 5.7 J 8.6 16 21 1.2 J 24 10 <br /> Petroleum Products <br /> Diesel fuel mg/L --- --- --- 7.3 J 6.3 15 39 1400 5.2 7.3 <br /> TPH-Extractable mg/L 110 4.5 6.9 --- --- --- --- --- --- --- <br /> TPH(non-polar) mg/L 110 4.5 6.9 --- --- --- --- --- --- --- <br /> TPH(C21-C28) mg/L --- --- --- --- --- --- --- --- --- --- <br /> Radiology <br /> Gross Alpha Analytes pci/I <br /> Gross Beta Analytes pci/I --- --- --- --- --- --- --- --- -- <br /> Field Parameters <br /> Specific conductivity,field us/cm --- 5590 5480 6008 8.85 5690 9230 9600 9730 9670 <br /> Dissolved oxygen(DO),field mg/L --- 0.58 1.41 0.83 0.37 0.17 --- 1.09 0.85 5.24 <br /> Oxidation reduction potential(ORP),field millivolts --- -182.9 -298 -256 -192.8 -281 -267 -266 -226 --- <br /> pH,field S.U. --- 8.8 8.92 8.79 8.78 8.64 8.16 8.61 8.92 8.88 <br /> Temperature,ambient Deg C --- 22 34 8.2 32 32 --- --- 18 24 <br /> Temperature,field Deg C --- 14.7 15 14.2 14.1 14 13.4 13.7 11.8 25 <br /> Turbidity,field NTU I --- 1.43 3.34 1.48 1.48 12.98 10.92 --- 2.27 1.93 <br /> Notes: <br /> U=result not detected at the reporting limit <br /> J=result value greater than the MDL and less than the RL <br /> B=analyte found in sample and associated blank <br /> HF=analysis holding time exceeded;result considered es <br /> E=result estimated due to the presence of interference <br /> =Analysis not performed <br /> Page 9 of 9 <br />