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HYDROLOGY <br /> TABLE OF CONTENTS (Continued) <br /> Paoe <br /> 2. Ground Water 7-255 <br /> a. Levels 7-255 <br /> b. Quality 7-259 <br /> C. Probable GrOUnd Water Impacts Due <br /> to Mining 7-262 <br /> 3. Alluvial Valley Floors 7-279 <br /> 4. Summary 7-280 <br /> Glossary 7-282 <br /> Bibliography 7-284 <br /> VIII.Seneca II Permit Renewal 02 (19921 Hydrology <br /> Information 7-290 <br /> A. Opeca tional and Pos[mining Monitoring Ptogram 7-290 <br /> B. Hydrologic Data 7-31i <br /> 1. Int roductlon 7-31: <br /> 2. Ground Watet Data 7-iii <br /> a. Gtourd Water Levels 7-311 <br /> b. Ground Watec Quality 7-3:1 <br /> 3. Surface Water Da[a 7-317 <br /> a. Review of Surface Water Flow Data 7-317 <br /> b. Comparison of Surface Water Parameters <br /> to Water Use Standards 7-318 <br /> c. Review of Surface water TDS `Ja hies 7-324 <br /> C. Cow Camp Creek and Bond Creek A1luvyal Aquifer <br /> Characteristics 7-330 <br /> D. Review of Plt Inflows at Seneca II Mine 7-331 <br /> E. Sediment Accumularior. in Sediment Ponces 7-333 <br /> IX. Seneca II Permit Renewal X3 119971 Hydrology Information 7-336 <br /> A. Hyarologic Monitoring Program 7-336 <br /> 1. Introcuction 7-336 <br /> 2. Ground Water t1onitorinq 7-336 <br /> 3. Surface Water Monitoring 7-345 <br />. 4. Water Monitoring Techniques 7-345 <br /> B. Hydrologic bata 7-355 <br />• 1. Int roductian 7-355 <br /> c'. Gto and Water Oata 7-357 <br /> a. Ground Water Levels 7-357 <br /> b. Ground Water Quality 7-357 <br /> 3. Surface Water Data 7-357 <br /> 4. Surface Water Flow Hyd rographs 7-358 <br /> 5. P[ecipitation 7-358 <br /> C. Probable Hydrologic Consequences 7-358 <br /> 1. Introduction 7-358 <br /> 2. Ground Water 7-360 <br /> a. Total Dissolved Solids 7-360 <br /> b, water Quality Standards 7-360 <br /> 3. Surface Water 7-371 <br /> a. Total Dissolved Solids 7-371 <br /> b. Water Quality Standards 7-371 <br />References 7-378 <br />LIST OF FIGURES <br /> Fl gure No. Page <br /> 7-1 Trilinear Dlag ram Illustrating Ground <br /> water Quality 7-7 <br /> 7-2 Comparison of Transmissivity, Specific <br /> Capacity, and Well Potential 7-17 <br /> 7-3 Trilinear DS ag ram Illustrating Ground <br /> Water Quality at the Seneca II Mine, Routt <br /> County, Colorado 7-2i <br /> 7-4 Reserved <br /> 7-5 Reserved <br /> ii Revised 02/05/97 <br />