Table of contents : WSP 2220: Basic ground-water hydrology......Page 1 Contents......Page 3 Preface......Page 4 Ground-water hydrology......Page 5 Rocks and water......Page 6 Underground water......Page 8 Hydrologic cycle......Page 9 Aquifers and confining beds......Page 10 Porosity......Page 11 Specific yield and specific retention......Page 12 Heads and gradients......Page 14 Hydraulic conductivity......Page 16 Functions of ground-water systems......Page 18 Capillarity and unsaturated flow......Page 20 Stratification and unsaturated flow......Page 22 Saturated flow and dispersion......Page 23 Ground-water movement and topography......Page 24 Ground-water flow nets......Page 25 Ground-water movement and stratification......Page 28 Ground-water velocity......Page 29 Transmissivity......Page 30 Storage coefficient......Page 32 Cone of depression......Page 34 Source of water derived from wells......Page 36 Aquifer tests......Page 38 Analysis of aquifer-test data......Page 40 Time-drawdown analysis......Page 42 Distance-drawdown analysis......Page 44 Single-well tests......Page 46 Well interference......Page 48 Aquifer boundaries......Page 50 Tests affected by lateral boundaries......Page 52 Tests affected by leaky confining beds......Page 54 Well-construction methods......Page 56 Well logs......Page 58 Water-well design......Page 60 Well-acceptance tests and well efficiency......Page 62 Specific capacity and transmissivity......Page 64 Well-field design......Page 66 Quality of ground water......Page 68 Pollution of ground water......Page 70 Saltwater encroachment......Page 72 Temperature of ground water......Page 74 Measurements of water levels and pumping rates......Page 76 Protection of supply wells......Page 78 Supply-well problems - Changes in water quality......Page 82 Well records and files......Page 84 Numbers, equations, and conversions......Page 87