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Groundwater and Streamflow Information

Surface-water Monitoring, Groundwater monitoring, and Flood Hazards

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Water Use and Availability

Surface-water Modeling, Groundwater-flow Modeling, Hydrogeologic Characterization, Water Use, Flood Science, Climate Change

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Water Quality

Surface-water-quality Monitoring, Groundwater-quality Monitoring, Water-quality Modeling, Wetlands, Ecosystem Health

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Coastal Science

Beach and Barrier Dynamics, Flood Hazards, Nearshore Environmental Health, Tide and Wave Hydrodynamics, Wetlands, Climate and Land-Use Change

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Ecosystem Health

Aquatic Community Health, Biogeochemical and Hydrologic Assessment, Climate Change, Ecological Assessment of Human and Natural Impacts

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New York Water Science Center

Our New York Water Science Center priority is to continue the important work of the DOI and the USGS, while also maintaining the health and safety of our employees and community.  Based on guidance from the White House, the CDC, and state and local authorities, we are shifting our operations to a virtual mode and have minimal staffing within our offices.

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Current Water Conditions

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Current water conditions in New York

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Science

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New York WSC science projects

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NY WSC Quick Links

Explore some of our most popular science topics, data, and tools

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News

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New USGS Maps Show Flood Levels on Lake Ontario’s US Shoreline by Lake Level

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Project Underway to Identify Algal Toxins in US National Park Waterways

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USGS Crews Work Fast to Capture Critical Flooding Measurements in the Mid-Atlantic

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Publications

A structured decision-making framework for managing cyanobacterial harmful algal blooms in New York State parks

Cyanobacteria are increasingly a global water-quality concern because of the potential for these organisms to develop into potentially harmful blooms that affect ecological, economic, and public health. Cyanobacterial harmful algal blooms (CyanoHABs) can lead to a decrease in water quality and affect many of the recreational and ecological benefits of parks that include lakes. The New York State O
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Water Resources, New York Water Science Center

Using microbial source tracking to identify fecal contamination sources in Great South Bay on Long Island, New York

The U.S. Geological Survey worked in cooperation with the New York State Department of Environmental Conservation to assess the potential sources of fecal contamination entering a part of Great South Bay (referred to as Great South Bay for the purposes of this report) near the hamlets of West Sayville, Sayville, and Bayport on the southern shore of Suffolk County on Long Island, New York. Water sa
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Water Resources, New York Water Science Center

Application of a soil-water-balance model to estimate annual groundwater recharge for Long Island, New York, 1900–2019

A soil-water-balance (SWB) model was developed for Long Island, New York, to estimate the potential amount of annual groundwater recharge to the Long Island aquifer system from 1900 to 2019. The SWB model program is a computer code based on a modified Thornthwaite-Mather SWB approach and uses spatially and temporally distributed meteorological, land-cover, and soil properties as input to compute p
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Water Resources, New York Water Science Center
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Assessment of compound flood risk from the combined effects of sea level rise on storm surge, tidal and groundwater flooding, and stormwater

BACKGROUND Long Island Sound has 600 miles of coastline and there are over 23 million people living within 50 miles of its shores. In response to water-quality issues and nitrogen pollution in the Sound, Congress created the Long Island Sound Study (LISS) in 1985. LISS is a partnership of federal, state, and local government agencies, private organizations and educational institutions working tog
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New York Water Science Center
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Assessment of compound flood risk from the combined effects of sea level rise on storm surge, tidal and groundwater flooding, and stormwater

BACKGROUND Long Island Sound has 600 miles of coastline and there are over 23 million people living within 50 miles of its shores. In response to water-quality issues and nitrogen pollution in the Sound, Congress created the Long Island Sound Study (LISS) in 1985. LISS is a partnership of federal, state, and local government agencies, private organizations and educational institutions working tog
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Methods for Estimation Flood Magnitude and Frequency at Ungaged Streams in New York, excluding Long Island

Summary: Extreme flooding can threaten life and property in flood-prone areas, as well as cause damage to critical infrastructure along roadways and canals. The effective management of these areas, and appropriate design of structures along rivers and streams, relies on understanding the magnitude and frequency of floods at gaged locations, and the ability to estimate these data at ungaged strea
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New York Water Science Center
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Methods for Estimation Flood Magnitude and Frequency at Ungaged Streams in New York, excluding Long Island

Summary: Extreme flooding can threaten life and property in flood-prone areas, as well as cause damage to critical infrastructure along roadways and canals. The effective management of these areas, and appropriate design of structures along rivers and streams, relies on understanding the magnitude and frequency of floods at gaged locations, and the ability to estimate these data at ungaged strea
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multicolored map of Tompkins county NY

Geohydrology of the Valley‐fill Aquifer in the Lower Fall Creek Valley, Town of Dryden, Tompkins County, New York

PROBLEM The valley‐fill aquifer in the lower Fall Creek valley (designated as aquifer 4, fig. 1), within the Towns of Dryden and Groton, was mapped by Miller (2000) and identified as one of 17 unconsolidated aquifers in Tompkins County that need to be studied in more detail. The east end of the valley (near the Tompkins and Cortland County border) is on the backside of a large morainal plug, which...
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New York Water Science Center
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Geohydrology of the Valley‐fill Aquifer in the Lower Fall Creek Valley, Town of Dryden, Tompkins County, New York

PROBLEM The valley‐fill aquifer in the lower Fall Creek valley (designated as aquifer 4, fig. 1), within the Towns of Dryden and Groton, was mapped by Miller (2000) and identified as one of 17 unconsolidated aquifers in Tompkins County that need to be studied in more detail. The east end of the valley (near the Tompkins and Cortland County border) is on the backside of a large morainal plug, which...
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