Unified Interior Regions

New York

Located in the Northeastern United States, New York is the seventh-most densely populated state in the U.S. The state covers 54,555 square miles and ranks as the 27th largest state by size. The Great Appalachian Valley dominates eastern New York and contains the Lake Champlain Valley as its northern half and the Hudson Valley as its southern half. Much of New York State borders water.

New York Water Science Center

New York Water Science Center

425 Jordan Road
Troy, NY 12180-8349

Phone: (518) 285-5695
Fax: (518) 285-5601

New York Water

States L2 Landing Page Tabs

Filter Total Items: 353
Date published: June 6, 2017
Status: Completed

Long Island Population

About 7.56 million people lived on Long Island in 2010. Of these, about 2.50 million are in Kings County, 2.23 million in Queens County, 1.34 million in Nassau County, and 1.49 million in Suffolk County.

Contacts: Jack Monti
Date published: June 5, 2017

Long Island Land Use and Land Cover

On Long Island, land use includes the human activities and management practices for which land is used. Land cover is a mosaic of developed, forest, agriculture, and wetlands areas. Both land use and land cover are usually discussed in similar environments. The National Land Cover Database (NLCD) serves as the definitive LANDSAT-based, 30-meter resolution, land cover database for the Nation....

Contacts: Jack Monti
Date published: June 4, 2017

Long Island Freshwater

Long Island is surrounded by an almost limitless amount of saltwater in the Atlantic Ocean, in the Long Island Sound, and in the many bays bordering Long Island. Although the salty water is important to the economy of the area and is of significant recreational value, this website is mainly concerned with the fresh water of Long Island, which from many standpoints, is even more important than...

Contacts: Jack Monti
Date published: June 3, 2017

Hydrologic Cycle

The water cycle has no starting point, but we'll begin in the oceans, since that is where most of Earth's water exists. The sun, which drives the water cycle, heats water in the oceans. Some of it evaporates as vapor into the air; a relatively smaller amount of moisture is added as ice and snow sublimate directly from the solid state into vapor. Rising air currents take the vapor up into the ...

Contacts: Jack Monti
Date published: June 2, 2017
Status: Active

Long Island Precipitation and Recharge

Precipitation is water released from clouds in the form of rain, freezing rain, sleet, snow, or hail. It is the primary connection in the water cycle that provides for the delivery of atmospheric water to the Earth. Most precipitation falls as rain. 

Water seeping down from the land surface and reaching the water table adds to the groundwater and is called groundwater recharge....

Contacts: Jack Monti
Date published: June 1, 2017

Long Island Surface Water

Streams either gain water from inflow of groundwater from the underlying aquifer or lose water by outflow to the underlying aquifer. Many streams do both, gaining in some reaches and losing in other reaches. Furthermore, the groundwater flow directions near any given stream can change seasonally as the altitude of the water table changes with respect to the stream-surface altitude or when...

Contacts: Jack Monti
Date published: May 31, 2017
Status: Active

Long Island Groundwater

Approximately 30% of the world’s water is stored as groundwater. Groundwater moves very slowly, on the order of feet per day, however it is still part of the hydrologic cycle. Most of the water in the ground comes from precipitation that infiltrates downward from the land surface.

Contacts: Jack Monti
Date published: May 30, 2017

Long Island Hydrogeologic Units

Long Island’s aquifer system consists of a seaward-dipping wedge of mostly unconsolidated stratified sediments comprised of sand, gravel, silt and clay.

Contacts: Jack Monti
Date published: May 29, 2017

Long Island Fresh and Saltwater Relations/Interactions

Because saltwater has a greater density than freshwater, fresh groundwater in coastal aquifers will overlie any saltwater that is present in the aquifer at depth (Figure 14).

Contacts: Jack Monti
Date published: May 28, 2017

Long Island State of the Aquifer System

One of the most important concepts to understand is that volumes of water pumped from a groundwater system must come from somewhere and must cause a change in the groundwater system. Another important concept is that water table aquifers are hydraulically connected to the streams that drain them. Therefore, pumping water from aquifers that are hydraulically connected with surface-water bodies...

Contacts: Jack Monti
Date published: May 27, 2017

Long Island Water Availability

The foundation of any groundwater analysis, including those analyses whose objective is to propose and evaluate alternative management strategies, is the availability of high-quality data. Some, such as precipitation data, are generally available and relatively easy to obtain at the time of a hydrologic analysis. Other data and information, such as geologic and hydrogeologic maps, can require...

Contacts: Jack Monti
Date published: May 26, 2017

Long Island Precipitation

The National Oceanic and Atmospheric Administration (NOAA) National Climatic Data Center (NCDC) offers several types of climate information generated from examination of the data in the archives. These types of information include record temperatures, record precipitation and snowfall, climate extreme statistics, and other derived climate products. A collection of statistical weather and...

Contacts: Jack Monti
Filter Total Items: 239
Date published: January 1, 2018

Echosounder Quality Assurance Points, Schoharie Reservoir, 2014

From 2013 to 2015, bathymetric surveys of New York City’s six West of Hudson reservoirs (Ashokan, Cannonsville, Neversink, Pepacton, Rondout, and Schoharie) were performed to provide updated capacity tables and bathymetric maps. Depths were surveyed with a single-beam echo sounder and real-time kinematic global positioning system (RTK-GPS) along planned transects at p

Date published: January 1, 2018

Geospatial datasets of AUV observations including bottom dissolved oxygen in Great South Bay, Long Island, New York, August 2016

This data provides an interpolated raster surface of dissolved oxygen values across a region covered by an August 26, 2016 AUV survey. The raster was generated by using a natural neighbors interpolator within a GIS on the empirical data set. This interpolator was chosen due to the non-normal distribution observed among the data, and its ability to produce smoother approximations than...

Date published: January 1, 2018

Geospatial dataset of flood-inundation maps for Cayuga Inlet, Sixmile Creek, Cascadilla Creek, and Fall Creek at Ithaca, New York

Digital flood-inundation maps for a 2.9-square-mile area of Ithaca, New York, were created in 2015–18 by the U.S. Geological Survey in cooperation with the City of Ithaca, New York, and the New York State Department of State. The flood-inundation maps depict estimates of the maximum areal extent and depth of flooding corresponding to selected flood frequencies for Cayuga Inlet,

Date published: January 1, 2018

Elevation Raster, Rondout Reservoir, 2013 to 2014

From 2013 to 2015, bathymetric surveys of New York City’s six West of Hudson reservoirs (Ashokan, Cannonsville, Neversink, Pepacton, Rondout, and Schoharie) were performed to provide updated capacity tables and bathymetric maps. Depths were surveyed with a single-beam echo sounder and real-time kinematic global positioning system (RTK-GPS) along planned transects at p

Date published: January 1, 2018

Depth Contours, Rondout Reservoir, 2013 to 2014

From 2013 to 2015, bathymetric surveys of New York City’s six West of Hudson reservoirs (Ashokan, Cannonsville, Neversink, Pepacton, Rondout, and Schoharie) were performed to provide updated capacity tables and bathymetric maps. Depths were surveyed with a single-beam echo sounder and real-time kinematic global positioning system (RTK-GPS) along planned transects at p

Date published: January 1, 2018

Geospatial Bathymetry Dataset and Elevation-Area-Capacity Table for Neversink Reservoir, 2014

From 2013 to 2015, bathymetric surveys of New York City’s six West of Hudson reservoirs (Ashokan, Cannonsville, Neversink, Pepacton, Rondout, and Schoharie) were performed to provide updated capacity tables and bathymetric maps. Depths were surveyed with a single-beam echo sounder and real-time kinematic global positioning system (RTK-GPS) along planned transects at p

Date published: January 1, 2018

Geospatial datasets of AUV observations including bottom dissolved oxygen in Great South Bay, Long Island, New York, August 2016

This data set provides locations and values of water quality parametersters from a survey conducted on August 23, 2016 using an Autonomous Underwater Vehicle (AUV) in Nicoll Bay, NY. During the August 23 survey, 13,910 observations of water quality parameters were made. Parameters collected include dissolved oxygen, pH, water temperature, specific conductance, and salinity. Data was...

Date published: January 1, 2018

Inundation boundaries for flood-inundation maps for Cayuga Inlet, Sixmile Creek, Cascadilla Creek, and Fall Creek at Ithaca, New York

This dataset contains inundation boundary polygons for 15 modeled water-surface profiles at 5 flood frequencies (50- , 10- , 2- , 1- , and 0.2-percent annual exceedance probabilities, or 2- , 10- , 50- , 100- , and 500-year recurrence intervals) and 3 lake levels (representing average conditions, a 2-year-high condition, and a 100-year-high condition).

Date published: January 1, 2018

Elevation Raster, East Basin of Ashokan Reservoir, 2013 to 2014

From 2013 to 2015, bathymetric surveys of New York City’s six West of Hudson reservoirs (Ashokan, Cannonsville, Neversink, Pepacton, Rondout, and Schoharie) were performed to provide updated capacity tables and bathymetric maps. Depths were surveyed with a single-beam echo sounder and real-time kinematic global positioning system (RTK-GPS) along planned transects at p

Date published: January 1, 2018

Elevation Contours, West Basin of Ashokan Reservoir, 2013 to 2014

From 2013 to 2015, bathymetric surveys of New York City’s six West of Hudson reservoirs (Ashokan, Cannonsville, Neversink, Pepacton, Rondout, and Schoharie) were performed to provide updated capacity tables and bathymetric maps. Depths were surveyed with a single-beam echo sounder and real-time kinematic global positioning system (RTK-GPS) along planned transects at p

Date published: January 1, 2018

Echosounder Quality Assurance Points, Ashokan Reservoir, 2013 to 2014

From 2013 to 2015, bathymetric surveys of New York City’s six West of Hudson reservoirs (Ashokan, Cannonsville, Neversink, Pepacton, Rondout, and Schoharie) were performed to provide updated capacity tables and bathymetric maps. Depths were surveyed with a single-beam echo sounder and real-time kinematic global positioning system (RTK-GPS) along planned transects at p

Date published: January 1, 2018

Geospatial Bathymetry Dataset and Elevation-Area-Capacity Table for Schoharie Reservoir, 2014

From 2013 to 2015, bathymetric surveys of New York City’s six West of Hudson reservoirs (Ashokan, Cannonsville, Neversink, Pepacton, Rondout, and Schoharie) were performed to provide updated capacity tables and bathymetric maps. Depths were surveyed with a single-beam echo sounder and real-time kinematic global positioning system (RTK-GPS) along planned transects at p

Filter Total Items: 389
stream of fast moving water running over rocks and boulders
August 10, 2017

Unnamed stream in the Adirondack Mountains of New York

Unnamed stream in the Adirondack Mountains of New York

woman with waders and big spoon standing knee deep in river
August 9, 2017

Sediment Oxygen Demand (SOD) sampling in Mohawk River

Sediment Oxygen Demand (SOD) sampling in Mohawk River

Screen Shot aerial imagery of Lake Ontario shoreline at Braddock Bay, New York
July 10, 2017

Aerial photograph of Lake Ontario shoreline at Braddock Bay, New York

Screen shot of eerial imagery from unmanned aerial systems (UAS) flights over the Lake Ontario shoreline at Braddock Bay, New York, July 10 to 11, 2017

USGS scientist with USGS pdf holding qw bottle on pole wading in body of water
June 27, 2017

USGS scientist collecting a water quality sample

USGS hydrologic technician obtaining water quality sample

2 men on railed platform on River with longhandled fishing nets
June 21, 2017

Electrofishing survey on the Buffalo River, NY

Biologists prepare to net fish during an electrofishing survey on Buffalo River

scientists in a boat and on a dock in the river, and under a popup dissecting fish from river
June 21, 2017

Fish Collection from the Buffalo RIver AOC

New York Statewide Fish Collection: Contaminants in fish from the Buffalo River AOC

USGS scientist sitting on cooler on blacktop at edge of green weedy area at plastic tubing setup
May 31, 2017

USGS NYWSC scientist collecting groundwater samples

USGS NYWSC scientist collecting groundwater samples

Mohawk River flowing under railroad bridge at Stockade district
March 30, 2017

Ice Jam Webcam at the Stockade railroad bridge, Schenectady, NY

Mohawk River Live Ice Jam Web Camera monitoring conditions at the railroad bridge in the Stockade district, Schenectady, NY

snow and ice on Mohawk River at Lock 8
March 20, 2017

Mohawk River at Lock 8 near Schenectady, NY (01354330)

Mohawk River at Lock 8 near Schenectady, New York (01354330)

photo of ice coated Mohawk River at a bridge
March 16, 2017

Ice Jam Webcam image of Mohawk River at Stockade bridge, Schenectady

Ice Jam Webcam image of Mohawk River at Stockade bridge, Schenectady

Filter Total Items: 156
USGS science for a changing world logo
June 4, 2004

It’s 1954, and the residents of New York City are facing another hot summer. For more than a century, the City has been augmenting its water supply to meet the demands of a growing city. The City, along with New York State, is in a legal dispute with three states over a water supply source.

USGS
June 4, 2004

It’s 1954, and the residents of New York City are facing another hot summer. For more than a century, the City has been augmenting its water supply to meet the demands of a growing city. The City, along with New York State, is in a legal dispute with three states over a water supply source.

USGS science for a changing world logo
May 14, 2004

America’s rivers and streams are generally suitable for irrigation, supplying drinking water, and home and recreational uses. However, in areas with significant agricultural and urban development, the quality of our nation’s water resources has been degraded by contaminants such as pesticides, nutrients, and gasoline-related compounds.

USGS
May 14, 2004

America’s rivers and streams are generally suitable for irrigation, supplying drinking water, and home and recreational uses. However, in areas with significant agricultural and urban development, the quality of our nation’s water resources has been degraded by contaminants such as pesticides, nutrients, and gasoline-related compounds.

USGS science for a changing world logo
February 3, 2004

 

Because of an increasing awareness of the critical role of ground water in sustaining coastal populations, economies, and ecosystems, the U.S. Geological Survey (USGS) has recently published a report that describes ground water conditions in freshwater and saltwater environments along the Atlantic coast. 

USGS science for a changing world logo
September 18, 2003

The U.S. Geological Survey today warned state and federal agencies about the increased potential for landslides in the mountainous regions of Virginia, West Virginia, Maryland, Pennsylvania and New York due to rainfall from Hurricane Isabel.

USGS science for a changing world logo
September 18, 2003

The U.S. Geological Survey today warned state and federal agencies about the increased potential for landslides in the mountainous regions of Virginia, West Virginia, Maryland, Pennsylvania and New York due to rainfall from Hurricane Isabel.

USGS
September 18, 2003

The U.S. Geological Survey today warned state and federal agencies about the increased potential for landslides in the mountainous regions of Virginia, West Virginia, Maryland, Pennsylvania and New York due to rainfall from Hurricane Isabel.

USGS science for a changing world logo
April 10, 2003

The USGS has just completed a geologically based assessment of the technically recoverable, undiscovered oil and gas resources of the Appalachian Basin Province. This area includes parts of New York, Pennsylvania, Ohio, Maryland, West Virginia, Virginia, Kentucky, Tennessee, Georgia, and Alabama.

USGS
April 10, 2003

The USGS has just completed a geologically based assessment of the technically recoverable, undiscovered oil and gas resources of the Appalachian Basin Province. This area includes parts of New York, Pennsylvania, Ohio, Maryland, West Virginia, Virginia, Kentucky, Tennessee, Georgia, and Alabama.

USGS
September 9, 2002

The U.S. Geological Survey (USGS) and its cooperators are launching a 5-year study in the Great Lakes basin to identify and map unprotected areas of substantial richness in aquatic animal species, and to determine how free those habitats are from human disturbance.

USGS
February 8, 2002

The USGS announced today that species and habitat data profiles have been completed for New York under the Gap Analysis Program (GAP). The GAP is a scientific method of gathering broad geographic information on biological diversity that contributes to keeping common species common.

New York Water Science Center

New York Water Science Center

425 Jordan Road
Troy, NY 12180-8349

Phone: (518) 285-5695
Fax: (518) 285-5601

New York Water