



Since publication of the first edition of this text, knowledge of groundwater has advanced and concern about the environment has increased. There have been major droughts and increasing worries over possible long-term water shortages, and suggestions that the climate is being...

Since publication of the first edition of this text, knowledge of groundwater has advanced and concern about the environment has increased. There have been major droughts and increasing worries over possible long-term water shortages, and suggestions that the climate is being...