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Springs /Surface Water <br />pH (lab and field)' <br />Sodium (Na + ) <br />Conductivity at 25 C (lab and field) <br />Sulfate (SO <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 (HCO - ) <br />Iron (Fe)' (Total and Dissolved) <br />Calcium (Ca +2 ) <br />Lead (Pb) <br />Chloride (Cl <br />Manganese (Mn)' (Total and Dissolved) <br />Hardness <br />Mercury (Hg) (Total Recoverable) <br />Magnesium (Mg +2 ) <br />Molybdenum (Mo) <br />Nitrate — Nitrite <br />Selenium (Se) (Total Recoverable) <br />Phosphate (PO4 as P) <br />Zinc (Zn) <br />Potassium <br />Boron (B) <br />Groundwater <br />pH (lab and field)' <br />Nitrate - Nitrite <br />Conductivity at 25 ° C (lab and field)' <br />Phosphate (PO as P) <br />Temperature (field)' <br />Potassium <br />Total Dissolved Solids' <br />Turbidity' <br />Sodium Adsorption Ratio (SAR) <br />Sodium (Na) <br />Bicarbonate (1-1CO <br />Sulfate (SO4) <br />Calcium (Ca 2 ) <br />Arsenic (As) <br />Carbonate (CO <br />Cadmium (Cd) <br />Chloride (CI) <br />Iron (Fe)' (Total and Dissolved) <br />Hardness <br />Manganese (Mn)' (Total and Dissolved) <br />Magnesium (Mg +2 ) <br />Lead (Pb) <br />Ammonia (NH <br />Mercury (Hg) <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 parameters 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), nitrite(as N), nitrate (as <br />N), alkalinity (Total CaCO carbonate, hydroxide, and ortho - phosphate <br />• <br />• <br />• <br />West Elk Mine 2010 Annual Hydrology Report <br />dapted from CDRMS (2006) <br />July 2011 <br />Table 2 <br />Laboratory Parameters <br />First 5 Years of Monitoring (including Baseline) <br />11 <br />HydroGeo, Inc. <br />