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Filters Date Range Past year (2) Past month (0) Past week (0) Past day (0) Custom range... To   Search Extensions Project (2) Shapefile (2) Types OGC WFS Layer (2) OGC WMS Layer (2) Shapefile (2) Contacts New York Water Science Center Ronald Busciolano Cooperative Water Program John P Masterson Town of North Hempstead Categories Project (2) Tag Types Label (6) Tags (with Scheme=https://www.sciencebase.gov/vocab/category/WRET/WRET_Topic/WRET_Topic_NYWSC) groundwater-flow modeling (2) hydrogeologic characterization (2) groundwater monitoring (1) groundwater-quality monitoring (1) View Results as: JSON ATOM CSV

Groundwater Availability of the Northern Atlantic Coastal Plain Background The North Atlantic Coastal Plain (NACP) covers a land area of approximately 34,000 mi 2 along the eastern seaboard of the United States from Long Island, N.Y., southward to the northern portion of North Carolina. This area is underlain by a thick wedge of sedimentary deposits that form a complex groundwater system in which the sands and gravels function as confined aquifers, and the silts and clays function as confining units. These confined aquifers of the NACP constitute a major source of water for public and domestic supply for the nearly 27 million people living in the region, as well as being important source of water for industrial and agricultural purposes. Increases in population and changes... Categories: Data, Project; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Cooperative Water Program, Delaware, Focused Assessments, Focused Assessments, Focused Assessments, All tags... GW Model, GW Model, GW model, GW or SW, GW or SW, GW or SW, Groundwater-Flow Modeling, Groundwater-Flow Modeling, Groundwater-Flow Modeling, Hydrogeologic Characterization, Hydrogeologic Characterization, Hydrogeologic Characterization, Maryland, New Jersey, New York, North Carolina, Northern Atlantic Coastal Plain, USGS New York Water Science Center, Virginia, WSC, Water Budget, Water Budget, Water Quality, Water Quality, Water Use and Availability Science, Water Use and Availability Science, Water budget, Water quality, aquifers, groundwater, hydrology, sediment, water supply, Fewer tags Development of a Ground-Water Flow Model for the Manhasset Neck Peninsula, Nassau County, New York Problem The ground-water flow system underlying the Manhasset Neck Peninsula, which provides potable water to the local population, consists of a complex assemblage of Pleistocene- and Cretaceous-age sediments that form five aquifers and at least two confining units. Recent hydrogeologic mapping in Manhasset Neck indicates significant glacial erosion of the Magothy aquifer, Raritan Clay, and Lloyd aquifer, and several gaps in the confining units that overlie the North Shore and Lloyd aquifers. Five areas of salt-water intrusion have been delineated, two of which are considered active. Several public-supply wells on the Manhasset Neck Peninsula have been shut down in the past as a result of saltwater intrusion.... Categories: Data, Project; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Complete, Completed, Cooperative Water Program, GW Model, GW Model, All tags... GW model, GW or SW, GW or SW, GW or SW, Groundwater Monitoring, Groundwater Monitoring, Groundwater Monitoring, Groundwater and Streamflow Information, Groundwater and Streamflow Information, Groundwater-Flow Modeling, Groundwater-Flow Modeling, Groundwater-Flow Modeling, Groundwater-Quality Monitoring, Groundwater-Quality Monitoring, Groundwater-Quality Monitoring, Hydrogeologic Characterization, Hydrogeologic Characterization, Hydrogeologic Characterization, Manhasset Neck Peninsula, Long Island, Nassau County, New York, Real-time Monitoring, Real-time Monitoring, Real-time Monitoring, USGS New York Water Science Center, WSC, Water Quality, Water Quality, Water Use and Availability Science, Water Use and Availability Science, Fewer tags