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West Elk Mine 2014 Annual Hydrology <br />Table 2. Laboratory Parameters for First Five Years of Monitoring <br />(including Baseline Period) <br />Springs/Surface Water 3,4 <br />H lab and field)' <br />Sodium a+ <br />Electrical conductive at 250 C <br />lab and field Sulfate SO4_ <br />Temperature (field)' <br />Aluminum (Al) <br />Total Dissolved Solids' JDS) <br />Arsenic (As) Total Recoverable <br />Total Suspended Solids' TSS <br />Cadmium Cd <br />Sodium Adsorption Ratio (SAR) <br />Copper Cu <br />Bicarbonate (HCO3-) <br />Iron (Fe)' (Total and Dissolved) <br />Calcium (Ca +2) <br />Lead (Pb <br />Chloride Cl" <br />Manganese (Mn)' Total and Dissolved <br />Hardness2 <br />Mercury H Total Recoverable <br />Magnesium (Mg+2) <br />Molybdenum (Mo) <br />Nitrate/Nitrite <br />Selenium Se Total Recoverable <br />Phos hate PO4 3 as P <br />Zinc Zn <br />Potassium <br />Boron (B) <br />Groundwater` <br />H lab and field)' <br />Nitrate/Nitrite <br />Electrical conductive at 250C <br />lab and field)' Phos hate P0; 3 as P <br />Temperature field)' <br />Potassium <br />Total Dissolved Solids' <br />Turbidity' <br />Sodium Adsorption Ratio (SAR) <br />Sodium Na <br />Bicarbonate HCO3 <br />Sulfate(SO4 ) <br />Calcium (Ca+2) <br />Arsenic (As) <br />Carbonate (CO3 <br />Cadmium (Cd) <br />Chloride (Cl <br />Iron (Fe)' (Total and Dissolved) <br />Hardness2 <br />Manganese (Mn)' (Total and Dissolved <br />Magnesium (M +2) <br />Lead (Pb) <br />Ammonia (NH3) <br />Mercury (Hg) <br />Selenium Se <br />Zinc Vn <br />Boron B <br />Adapted from CDRMS (2006) <br />1. Parameters monitored as a result of PR -10 <br />2. Added to baseline analyses in 1996, not for analyses completed prior to 1996. <br />3. All metals analyzed for their dissolved form unless stated otherwise. <br />4. North Fork of the Gunnison and Middle Sylvester Gulch expanded parameters include those listed in <br />Table 2 for surface water, plus chromium, nickel, silver (total), cyanide (total), iron (total recoverable), <br />alkalinity (Total CaCOA bicarbonate, carbonate, hydroxide; nitrogen (ammonia), ortho-phosphorus <br />(dissolved), and sodium adsorption ratio (SAR). <br />June 2015 HydroGeo, Inc. <br />