Page 9 - Hydrogeology Principles and Practice

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viii Contents

7.4 Groundwater protection strategies in developing countries 271
7.5 Further reading 276

8 Groundwater resources and environmental management 277
8.1 Introduction 277
8.2 Groundwater resources schemes 277
8.2.1 Water balance equation 277
8.2.2 Large-scale groundwater development schemes 279
8.2.3 Regional-scale groundwater development schemes 282
8.2.4 Artificial storage and recovery schemes 284
8.2.5 Riverbank filtration schemes 286
8.2.6 Horizontal well schemes 293
8.3 Groundwater abstraction and river flows 293
8.3.1 Analytical solutions of river flow depletion 295
8.3.2 Catchment resource modelling of river flow depletion 297
8.4 Wetland hydrogeology 301
8.5 Climate change and groundwater resources 302
8.6 Further reading 316

Appendix 1 Conversion factors 317
Appendix 2 Properties of water in the range 0–100°C 318
Appendix 3 The geological timescale 319
Appendix 4 Symbols, atomic numbers and atomic weights of the elements 320
Appendix 5 Composition of seawater and rainwater 322
Appendix 6 Values of W(u) for various values of u 326
Appendix 7 Values of q/Q and v/Qt corresponding to selected values of t/F for use in
computing the rate and volume of stream depletion by wells and boreholes 327
Appendix 8 Values of error function, erf (β), and complementary error function, erfc (β),
for positive values of β 328
Appendix 9 Drinking water quality standards and Lists I and II Substances 329
Appendix 10 Review questions and exercises 334

References 354
List of sources 372
Index 377