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• <br /> <br />PR-12 Exhibit 71 <br />Table 6 <br />Laboratory Parameters <br />Baseline and First 5 years of Sampling <br />S rin s/Surface Water3 <br />H (lab and field)' Sodium (Nal <br />Conductivity at 25 C (lab and field) Sulfate (SO4-) <br />Temperature (field) Aluminum (A]) <br />Total Dissolved Solids Arsenic (As) (Total Recoverable) <br />Total Suspended Solids Cadmium (Cd) <br />Sodium Adsorption Ratio (SAR) Copper (Cu) <br />Bicarbonate (HC03) Iron (Fe) (Total and Dissolved) <br />Calcium (Ca±-) Lead (Pb) <br />Chloride (Cl') Manganese (Mn) (Total and Dissolved) <br />Hardness Mercury (Hg) (Total Recoverable <br />Magnesium (M +) Molybdenum (Mo) <br />Nitrate Nitrite Selenium (Se) (Total Recoverable) <br />Phosphate (P0; as P) Zinc (Zn) <br />Potassium Boron (B) <br />Groundwater3 <br />H (lab and field)' Nitrate-Nitrite <br />Conductivity at 25"C (lab and field) Phosphate (P04 as P) <br />Tem erature (field) Potassium <br />Total Dissolved Solids Turbidity' <br />Sodium Adsorption Ratio (SAR) Sodium (Na) <br />Bicarbonate (HC03) Sulfate (S04-) <br />Calcium (Ca+-) Arsenic (As) <br />Carbonate (C03 Cadmium (Cd) <br />Chloride (Cl-) Iron (Fe) (Total and Dissolved) <br />Hardness Manganese (Mn) (Total and dissolved) <br />Magnesium (M +-) Lead (Pb) <br />Ammonia (NH3) Mercury (Hg) <br />Selenium (Se) Zinc (Zn) <br /> Boron (B) <br />Notes: <br />1. Parameters monitored as a result of TR-54 <br />2. Added to baseline analyses in 1996. Not for analyses completed prior to 1996. <br />3. All parameters will be analyzed for their dissolved form unless stated otherwise. <br />16 <br />4.3 Surface Water Monitoring <br />The WEM area is drained to the north by the North Fork of the Gunnison River, to the south by Minnesota Creek, <br />to the west by Gribble Gulch, and to the east by Deep Creek and Raven Gulch. The current surface water <br />monitoring plan for the WEM includes 22 stream stations, comprised of 10 sites with continuous recording <br />devices and 12 sites with instantaneous flow measuring devices. MCC added 2 new surface water monitoring <br />sites in the SOD (PR-10) area in 2006: the Deep Creek Ditch Flume and the Minnesota Reservoir Flume (Map 1 <br />and Table 7). <br />September 2007 <br />._51 - <br />Hi'droGeo, Inc. <br />:7