Abstract The US Geological Survey (USGS), in cooperation with State and local agencies,
systematically collects groundwater data at varying measurement frequencies to monitor the …

Ground water is the sole source of water supply for more than 3 million people on Long
Island, New York. Large-scale ground-water pumpage, sewering systems, and prolonged …

Abstract The US Geological Survey has developed a transient, groundwater-flow model that
simulates hydrologic conditions in the Long Island aquifer system as part of an ongoing …

Abstract In 2016, the US Geological Survey began a multiyear cooperative study with the
New York State Department of Environmental Conservation to evaluate the sustainability of …

The US Geological Survey (USGS), in cooperation with State and local agencies,
systematically collects groundwater data at varying measurement frequencies to monitor the …

Digital maps of bedrock elevation and overburden thickness (depth to bedrock) were
constructed for the five boroughs of New York City by the US Geological Survey, in …

Abstract The Pleistocene-and Cretaceous-age sediments underlying Long Island, New York,
compose an important sole-source aquifer system that is nearly 2,000 feet thick in some …

The Lloyd aquifer contains about 9 percent of Long Island's potable water and has been a
source of public-water supply since the early part of the 20 th century. Many studies during …

Fifty-six boreholes were drilled along the northern part of Nassau County from 1991-98 to
delineate the hydrogeologic framework and extent of saltwater intrusion. The Lloyd aquifer's …