ABSTRACT
The control of salt-water intrusion into fresh ground water is a basic concern in many parts of the United States relative to long-term dependable water supplies. The effects of salt-water intrusion related to human health and welfare include decreased water quality and desirability for drinking water. In agricultural areas increasing salinity in irrigation water results in declining crop productivity and may necessitate switching to salt-tolerant crops. This chapter also presents an overview of the key concepts discussed in this book. The book provides a detailed description of effects of salinity and sources of salt water intrusion. It summarizes the results of a national salinity survey. The book summarizes salinity evaluation via monitoring and modeling, physical control measures, and institutional and legal aspects of management. It describes systematic methodology for considering current and future salt water intrusion problems by water resources aggregated sub-areas.
