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TAB 17 <br /> TABLE OF CONTENTS <br /> Pace <br /> Ground Wa[er 1 <br /> Introduction 1 <br /> Ground Water Inflows to Pits and Drawdowns 1 <br /> Introduction 1 <br /> NcWhorter Analysis for Calculating pit Inflows 1 <br /> Drewdowns from Pit Pumpage end Extent of Water Level Declines 9 <br /> Potential Mining Impacts on Local Water Rights 12 <br /> Removal of Wells and Ponds by Mining 13 <br /> Pit Pumpage Drawdown Effects on Adjacent Water Users 13 <br /> Production cell Impacts on Adjacent Water Users 13 <br /> ]mpact of Replaced Spoil Material on Ground Water Flow and <br /> Recharge Capacity 14 <br /> Containment of Pit Inflow Pumpage and Impacts on Water Quality 16 <br />• Impact of Spoil Water Quality on the Ground and Surface Water <br /> Qualfty 17 <br /> Overburden Characterization 18 <br /> Controls on Spoil and Downgradient Water Quality 25 <br /> Water Chemistry and Flow Inferences Based on Seneca [I <br /> Nonitoring Results 27 <br /> Potential Impacts of Replaced Spoil on Ground Water Quality 37 <br /> Bedrock Geologic Units 37 <br /> Alluvium 39 <br /> Potential lmpact of Replaced Spoil on Surface Water Quality 41 <br /> Surface Water 43 <br /> Effects of Mining on [he Local Geomorphology 43 <br /> Drainage Basins 43 <br /> Stream Channels 46 <br /> Effects of Sediment Ponds on Channel Characteristics and <br /> Downstream Users 47 <br /> Effects of Sediment Pond Discharges, Diversions and Culverts at <br />. Road Crossings on Surface Wa[er Quality 49 <br /> Effects of Runoff from Reclaimed Areas on the ouantity of StreamfloW 50 <br />i Revised 03/24/95 <br />