TY - BOOK AU - Todd, David Keith AU - Mays, Larry W. AU - Sreelash, K. AU - Murugan, R. TI - Groundwater hydrology SN - 9788194726333 U1 - 551.49 T63, 3 PY - 2021/// CY - New Delhi PB - Wiley India Pvt. Ltd KW - Groundwater KW - Effect of Wells on Seawater Intrusion KW - Occurrence of groundwater KW - Groundwater movement N1 - Groundwater Hydrology is a classic textbook that provides a unified presentation of groundwater hydrology, treating fundamental principles, methods, and problems encountered in the field as a whole. Continuing its forty-year history of providing students and professionals with a thorough grounding in the science and technology of groundwater hydrology, the book explores the many new developments that have occurred in the groundwater field in recent years, concerns and competition for water supplies, contamination of groundwater, and enhanced regulation of water resources. The book also focuses on modern groundwater modeling tools, including a detailed description of MODFLOW. Contents: 1. Introduction 1.1 Scope 1.2 Historical Background 1.3 Trends in Water Withdrawals and Use 1.4 Utilization of Groundwater 1.5 Groundwater in the Hydrologic Cycle 1.6 Hydrologic Budget Case Study—Lake Five-O, Florida 1.7 Publication Sources 1.8 Data Sources 2. Occurrence Of Groundwater 2.1 Origin and Age of Groundwater 2.2 Rock Properties Affecting Groundwater 2.3 Vertical Distribution of Groundwater 2.4 Zone of Aeration 2.5 Zone of Saturation 2.6 Geologic Formations as Aquifers 2.7 Types of Aquifers 2.8 Storage Coefficient 2.9 Groundwater Basins/Regional Groundwater Flow Systems 2.10 Springs 3. Groundwater Movement 3.1 Darcy’s Law 3.2 Permeability 3.3 Determination of Hydraulic Conductivity 3.4 Anisotropic Aquifers 3.5 Groundwater Flow Rates 3.6 Groundwater Flow Directions 3.7 General Flow Equations 3.8 Unsaturated Flow 3.9 Kinematic Wave 3.10 Infiltration: The Green–Ampt Method 3.11 Double Ring Infiltrometer 4. Groundwater And Well Hydraulics 4.1 Steady Unidirectional Flow 4.2 Steady Radial Flow to a Well 4.3 Well in a Uniform Flow 4.4 Unsteady Radial Flow in a Confined Aquifer 4.5 Unsteady Radial Flow in an Unconfined Aquifer 4.6 Unsteady Radial Flow in a Leaky Aquifer 4.7 Well Flow Near Aquifer Boundaries 4.8 Multiple Well Systems 4.9 Partially Penetrating Wells 4.10 Well Flow for Special Conditions 5. Water Wells 5.1 Test Holes and Well Logs 5.2 Methods for Constructing Shallow Wells 5.3 Methods for Drilling Deep Wells 5.4 Well Completion 5.5 Well Development 5.6 Testing Wells for Yield 5.7 Pumping Equipment 5.8 Protection of Wells 5.9 Well Rehabilitation 5.10 Horizontal Wells 5.11 Characteristic Well Losses 5.12 Specific Capacity and Well Efficiency 5.13 Slug Tests 6. Groundwater Levels And Environmental Influences 6.1 Time Variations of Levels 6.2 Streamflow and Groundwater Levels 6.3 Fluctuations Due to Evapotranspiration 6.4 Fluctuations Due to Meteorological Phenomena 6.5 Fluctuations Due to Tides 6.6 Urbanization 6.7 Earthquakes 6.8 External Loads 6.9 Effects of Global Climate Change On Groundwater 7. Quality Of Groundwater 7.1 Natural Groundwater Quality 7.2 Sources of Salinity 7.3 Measures of Water Quality 7.4 Chemical Analysis 7.5 Graphical Representations 7.6 Physical Analysis 7.7 Biological Analysis 7.8 Groundwater Samples 7.9 Water-Quality Criteria 7.10 Changes in Chemical Composition 7.11 Dissolved Gases 7.12 Temperature 7.13 Saline Groundwater 7.14 Monitoring Groundwater Quality 7.15 Solute Transport in Saturated Porous Media 7.16 Dispersion 7.17 Advection–Dispersion Equation for Solute Transport in Saturated Porous Media 7.18 Groundwater Tracers 8. Pollution Of Groundwater 8.1 Pollution in Relation to Water Use 8.2 Municipal Sources and Causes and Causes 8.4 Agricultural Sources and Causes 8.5 Miscellaneous Sources and Causes 8.6 Attenuation of Pollution 8.7 Distribution of Pollution Underground 8.8 Remediation of Contaminated Groundwater 8.9 Conventional Pump-and-Treatment Systems 9. Groundwater Flow Modeling Techniques 9.1 Why Develop Groundwater Models? 9.2 Types of Groundwater Models 9.3 Steps in the Development of a Groundwater Model 9.4 Simulation of Two-Dimensional Groundwater Systems 9.5 Three-Dimensional Groundwater Flow Model 9.6 Tools for Numerical Groundwater Modeling 9.7 Case Study—Using MODFLOW: Lake Five-O, Florida 9.8 Example Applications and Input of MODFLOW 9.9 Groundwater Modeling Software Support 10. Management Of Groundwater 10.1 Concepts of Basin Management 10.2 Groundwater Basin Investigations and Data Collection 10.3 Yield 10.4 Conjunctive Use and Watershed Management 10.5 Groundwater Management: Water Laws and Policies 10.6 Groundwater Management: Initiatives in India 10.7 Groundwater Management Using Models 11. Surface Investigations Of Groundwater 11.1 Geologic Methods 11.2 Remote Sensing 11.3 Geophysical Exploration 11.4 Electrical Resistivity Method 11.5 Seismic Refraction Method 11.6 Gravity and Magnetic Methods 12. Subsurface Investigations Of Groundwater 12.1 Test Drilling 12.2 Water-Level Measurement 12.3 Geophysical Logging 12.4 Resistivity Logging 12.5 Spontaneous Potential Logging 12.6 Radiation Logging 12.7 Temperature Logging 12.8 Caliper Logging 12.9 Fluid-Conductivity Logging 12.10 Fluid-Velocity Logging 12.11 Miscellaneous Logging Techniques 12.12 Other Subsurface Methods 12.13 Case Study 13. Artificial Recharge Of Groundwater 13.1 Concept of Artificial Recharge 13.2 Recharge Methods 13.3 Wastewater Recharge For Reuse 13.4 Soil Aquifer Treatment (SAT) Systems 13.5 Innovative Approaches 13.6 Induced Recharge 14. Saline Water Intrusion In Aquifers 14.1 Occurrence of Saline-Water Intrusion 14.2 Ghyben–Herzberg Relation Between Fresh and Saline Waters 14.3 Shape of the Fresh–Saltwater Interface 14.4 Structure of the Fresh–Saltwater Interface 14.5 Effect of Wells on Seawater Intrusion 14.6 Upconing of Saline Water 14.7 Fresh–Saltwater Relations on Oceanic Islands 14.8 Seawater Intrusion in Karst Terrains 14.9 Control of Saline-Water Intrusion 14.10 Examples of Seawater Intrusion Problems References Multiple Choice Questions Appendix A: Metric Units and English Equivalents Appendix B: List of Websites and Nongovernmental Organizations Appendix C: Modflow Input and Output Data for Examples in Chapter 9 Index Supplements ER -