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West Elk Mine 2013 Annual Hydrology Report <br />Table 2. Laboratory Parameters for First 5 Years of Monitoring (including <br />Baseline) <br />12 <br />Springs /Surface Water3,4 <br />H lab and field)' <br />Sodium (Na') <br />Electrical Conductivity at 250 C lab and field <br />Sulfate SO4_ <br />Temperature (field)' <br />Aluminum Al <br />Total Dissolved Solids' <br />Arsenic As Total Recoverable <br />Total Suspended Solids' <br />Cadmium Cd <br />Sodium Adsorption Ratio (SAR) <br />Copper Cu <br />Bicarbonate (HCO3-) <br />Iron Fe ' Total and Dissolved <br />Calcium (Ca 12) <br />Lead Pb <br />Chloride Cl <br />Manganese (Mn )l Total and Dissolved <br />Hardness2 <br />Mercury H Total Recoverable <br />Magnesium (M g,2) <br />Molybdenum Mo <br />Nitrate Nitrite <br />Selenium Se Total Recoverable <br />Phosphate P043 as P <br />Zinc Zn <br />Potassium <br />Boron B <br />Groundwater3 <br />H lab and field)' <br />Nitrate- Nitrite <br />Electrical Conductivity at 25 0C lab and field)' <br />Phosphate (PO4-3 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 12) <br />Arsenic As <br />Carbonate (COO <br />Cadmium Cd <br />Chloride Cl <br />Iron (Fe)' Total and Dissolved <br />Hardness2 <br />Manganese (Mn)' Total and Dissolved <br />Magnesium (M g,2) <br />Lead Pb <br />Ammonia (NH3) <br />Mercury H <br />Selenium Se <br />Zinc Zn <br />Boron B <br />Notes: <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 />nitrate /nitrite (as N), alkalinity (Total CaCO3), bicarbonate, carbonate, hydroxide; nitrogen (ammonia), <br />hos horous -ortho, and sodium adsorption ratio (SAR). <br />Adapted from CDRMS (2006) <br />June 2014 HydroGeo, Inc. <br />