Regions

Connecticut

States L2 Landing Page Tabs

Connecticut, the southernmost state in the New England region of the United States is named after the Connecticut River, a major river that bisects the state. The Connecticut River cuts through the center of the state, flowing into Long Island Sound. Connecticut consists of temperate broadleaf and mixed forests. Northeastern coastal forests of oaks, hickories and maple cover much of the state.

New England Water Science Center - Connecticut

New England Water Science Center - Connecticut

101 Pitkin Street
East Hartford, CT06108
United States

Phone: 860-291-6740
Fax: 860-291-6799

New England Water

News

New England Newsletter Spring 2018 cover
March 22, 2018

Spring 2018 WaterMarks continues a regular series of newsletters from the USGS New England Water Science Center to cooperating agencies, collaborators, and others interested our work. This issue features:

  •  Links to new reports and journal articles by our staff
  •  Current hydrologic conditions, with a focus on winter ice in streams 
  •  Highlights of several new interpretive studies 
Nor'easter
March 1, 2018

USGS field crews are deploying storm-tide and wave sensors today from Maine to Delaware to track and study a Nor’easter forecasted to begin tomorrow.

Measuring high water mark - blizzard of January 2018 in New England
January 15, 2018

Significant flooding along the coast of Massachusetts occurred Thursday, January 4, 2018, caused by a powerful blizzard.  Peak storm surge of approximately 3.00 feet occurred at the astro high tide; and, according to the National Weather Service, is the highest since records began at the Boston tide station in 1921. 

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Connecticut River in Northfield MA outreach event
Date Published: September 24, 2018
Status: Active

Surface Water Quality Monitoring in Connecticut

The 2,983 miles of streams in Connecticut support a range of uses, including drinking water, recreation, and fish and shellfish habitat.  The State is required by the Clean Water Act to assess the health of these waters every two years.

A view of Mount Ascutney, the Connecticut River, and the Cornish-Windsor Covered Bridge.
Date Published: September 20, 2018
Status: Active

Northeast Bedrock Mapping Project

The Northeast Bedrock Mapping Project consists of scientists conducting geologic mapping and scientific research of complexly deformed crystalline igneous and metamorphic rocks in the Northeastern United States. Current mapping activities are focused in New Hampshire, Vermont, Connecticut, and New York. The Project produces high-quality, multi-purpose digital geologic maps and accompanying...

Contacts: Gregory Walsh
A saltwater tracer was injected into the shallow aquifer at a uranium-contaminated site in Colorado
Date Published: August 29, 2018
Status: Active

Hydrogeophysics Laboratory — Storrs, Connecticut

About the Laboratory

The geophysicists and hydrologists at the Hydrogeophysics Laboratory develop, demonstrate, and support the application of geophysical methods to environmental-health investigations. They have expertise in a diverse suite of geophysical field methods including electrical, electromagnetic, seismic, radar, gravity, and thermal; these methods are run...

Screenshot of the Flood Insurance Map
Date Published: May 18, 2018
Status: Active

Development of Flood Insurance Maps in New England

FEMA has requested USGS expertise in hydraulics, hydrology, and mapping to general Flood Insurance Maps for New England.

Surveying for the FEMA project
Date Published: May 18, 2018
Status: Active

Flow modeling at dam removal sites associated with Hurricane Sandy Resiliency Efforts

The purpose of this work is to better understand the effects of dam removal on local hydraulics, fish passage, and flooding. This study is part of a larger effort to monitor ecological resilience changes at nine Hurricane Sandy coastal resiliency aquatic connectivity restoration projects. It will contribute crucial knowledge that will be used to improve aquatic connectivity system cost-...

Flooding in Soldier Pond, Maine
Date Published: May 16, 2018
Status: Active

Development of Regional Regression Equations in Connecticut

Knowledge of the magnitude and frequency of floods is needed for the effective and safe design of bridges, culverts, and other structures.  This information is also important for flood-plain planning and management. Periodic examination of flood-frequency characteristics is essential to ensure the best estimates of flood magnitudes for a given annual exceedance probabilities (AEP).

Photo of Bird Bands in a Variety of Sizes and Types
Date Published: May 1, 2018
Status: Active

Bird Banding Laboratory

The Bird Banding Laboratory (BBL) is an integrated scientific program established in 1920 supporting the collection, archiving, management and dissemination of information from banded and marked birds in North America.  This information is used to monitor the status and trends of resident and migratory bird populations. Because birds are good indicators of the health of the environment, the...

Connecticut River in Northfield MA outreach event
Date Published: April 19, 2018
Status: Active

Nutrient loads from the Upper Connecticut River Watershed

River-borne nutrients, especially nitrogen, contribute to water-quality degradation in Long Island Sound. The Connecticut River is the largest tributary to the Sound, and quantification of nutrient loads from the three upper States in the watershed, as well as the State of Connecticut, is essential for prioritizing efforts to improve the Sound’s water quality. 

Oblique aerial photograph looking to the southwest along the southern end of Cedar Island, Virginia
Date Published: January 18, 2018
Status: Active

Long-Term Coastal Change

Goals of this project include developing and improving coastal-change assessments and supporting long-term planning and decision making to ensure sustainable coastal economies, infrastructure, and ecosystems. Research is part of the National Assessment of Coastal Change Hazards...

Cliff erosion is a common storm-induced hazard along the West Coast.
Date Published: January 17, 2018
Status: Active

National Assessment of Coastal Change Hazards

Research to identify areas that are most vulnerable to coastal change hazards including beach and dune erosion, long-term shoreline change, and sea-level rise.

Seminar presentation
Date Published: May 15, 2017

New England WSC seminar series Cosgrove 20170515

NOAA's National Water Model (NWM) represents the next generation of river forecasting by NOAA. The NWM is based on the National Hydrography Dataset at a scale of 1:100,000 and is being developed to provide continuous modeled river flows for all 2 million plus river reaches in the model.

Contacts: Matt Ely
a birder on a bridge looking at the birds
Date Published: July 26, 2016
Status: Active

HDgov: Multi-agency Website for Human Dimensions of Natural Resources

HDgov is an interactive and mobile-responsive online portal to interagency, academic, and non-government resources focused on the human dimensions of natural resource management. The web portal provides easy access to tools, publications, data, and methods that help ensure that the people side of natural resources is considered throughout the entire natural resource management process. The...

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Web Application
/data-tools/streamstats-new-england-states-and-nation

StreamStats for New England states and the Nation

A StreamStats map image of the eastern United States
May 2, 2018

Interactively identify a watershed boundary and obtain detailed streamflow statistics.

For an introduction to StreamStats click HERE

Water
/data-tools/surface-water-data-connecticut

Surface-water data for Connecticut

Example NWIS graph of real-time streamflow monitoring
April 23, 2018

Real-time, daily, peak-flow, field measurements, and statistics of current and historical data that describe stream levels, streamflow (discharge), reservoir and lake levels, surface-water quality, and rainfall in Connecticut. Surface-water data are collected and stored as either discrete field-water-level measurements or as continuous time-series data from automated recorders.

Water
/data-tools/groundwater-data-connecticut

Groundwater data for Connecticut

Example NWIS graph of real-time groundwater-level monitoring
April 18, 2018

Data from wells, springs, test holes, tunnels, drains, and excavations in Connecticut; well location data includes information such as latitude and longitude, well depth, and aquifer. Groundwater level data are collected and stored as either discrete field-water-level measurements or as continuous time-series data from automated recorders.

Water
/data-tools/water-quality-data-connecticut

Water-quality data for Connecticut

Example NWIS graph of real-time water-quality monitoring
April 13, 2018

Chemical, physical, and biological properties of water, sediment, and tissue samples from Connecticut. Water-quality data are collected as either discrete field measurements or as continuous time-series data from automated recorders that continuously record physical and chemical characteristics including pH, specific conductance, temperature, and dissolved oxygen.

Other
/data-tools/water-use-data-connecticut

Water Use Data for Connecticut

Pie chart showing Wisconsin total water withdrawals by water-use category, excluding thermoelectric-power generation, 2010
April 9, 2018

Water-use data is collected by area type (state, county, watershed, or aquifer) and source (such as rivers or groundwater), and category (such as public supply or irrigation). Water-use data has been reported every five years since 1950. The USGS works in cooperation with local, State, and Federal agencies as well as academic and private organizations to collect and report withdrawals.

Science Datasets
/data-tools/data-nitrogen-concentrations-and-loads-connecticut-river-middle-haddam-connecticut

Data on Nitrogen Concentrations and Loads for the Connecticut River at Middle Haddam, Connecticut, Computed with the Use of Auto-Sampling and Continuous Measurements of Water Quality, 2008-14

Screenshot of the map showing area near Middle Haddam Connecticut
March 20, 2018

This U.S. Geological Survey data release presents tabular daily data on nitrate plus nitrite nitrogen and total nitrogen loads for the Connecticut River at Middle Haddam, Connecticut, from December 6, 2008, to September 30, 2014. 

Water
/data-tools/national-water-information-system-web-interface-nwisweb-0

National Water Information System web interface (NWISweb)

Application screenshot thumbnail
September 1, 2017

The National Water Information System (NWIS) web application provides access to real-time and historical surface-water, groundwater, water-quality, and water-use data collected at approximately 1.5 million sites across all 50 states.

Web Application
/data-tools/national-water-information-system-nwis-mapper-0

National Water Information System (NWIS) Mapper

Screenshot of USGS National Water Information System (NWIS) mapper
August 30, 2017

The NWIS mapper provides access to over 1.5 million sites contained in the USGS National Water Information System (NWIS), including sites where current and historical surface-water, groundwater, springs, and atmospheric data has been collected. Users can search by site type, data type, site number, or place.

Web Application
/data-tools/coastal-change-hazards-portal

Coastal Change Hazards Portal

Coastal Change Hazards Portal Interactive Mapper screen grab
August 24, 2017

Interactive access to coastal change science and data for our Nation’s coasts. Information and products are organized within three coastal change hazard themes: 1) extreme storms, 2) shoreline change, and 3) sea-level rise. Each data item represents an individual research product, with some items grouped together as aggregates to show the breadth of the topic and make it easy to explore.

Science Datasets
/data-tools/inventory-water-quality-and-geologic-setting-data-674-private-wells-connecticut-2013-2015

Inventory of water-quality and geologic-setting data from 674 private wells in Connecticut, 2013-2015

Screenshot of the map showing state of Connecticut
March 29, 2017

This dataset contains the water-quality results from the testing of unfiltered water samples collected from 674 private wells in Connecticut for the analysis of arsenic and (or) uranium, using EPA method 200.8.

GIS Data
/data-tools/structures-data

Structures Data

Structure datasets for the nation from The National Map
April 20, 2016

USGS data portray selected structures data, including the location and characteristics of manmade facilities. Characteristics consist of a structure's physical form (footprint), function, name, location, and detailed information about the structure. The types of structures collected are largely determined by the needs of the disaster planning and response and homeland security organizations.

GIS Data
/data-tools/boundaries

Boundaries Data

Boundaries datasets for the nation from The National Map.
April 19, 2016

Boundaries data or governmental units represent major civil areas including states, counties, Federal, and Native American lands, and incorporated places such as cities and towns.

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New England Water Conditions Map
October 30, 2018

New England Current Water Conditions (Groundwater, Surface Water and Water-Quality) Maps

Example of StreamStats drainage basin delineation Illustration
October 21, 2018

StreamStats is a Web-based Geographic Information Systems (GIS) application that provides users with access to an assortment of analytical tools that are useful for a variety of water-resources planning and management purposes.

Screenshot of the map showing part of New England
October 19, 2018

Maps of flood and high flow conditions within New England

Digital Elevation Model in the Atchafalaya Basin, LA
April 19, 2016

The 3DEP products and services available through The National Map consist of standard digital elevation models (DEMs) at various horizontal resolutions, elevation source and associated datasets, an elevation point query service and bulk point query service. All 3DEP products are available, free of charge and without use restrictions.

USGS Storm-Tide Mapper and Data Services
March 8, 2016

The USGS Storm Tide Mapper is a tool for viewing, analyzing, and accessing storm tide data collected during and after hurricanes and Nor’easters. The USGS Storm Tide Mapper will continue to provide a unified and consistent source of real-time and archived storm-tide data.

Map shows color-coded seafloor character offshore of Monterey, California
March 7, 2016

This portal is a “go to” source for maps related to ocean and coastal mapping. Information is organized by geography or region, by theme, and by the year data was published.

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Year Published: 2018

Nitrogen concentrations and loads for the Connecticut River at Middle Haddam, Connecticut, computed with the use of autosampling and continuous measurements of water quality for water years 2009 to 2014

The daily and annual loads of nitrate plus nitrite and total nitrogen for the Connecticut River at Middle Haddam, Connecticut, were determined for water years 2009 to 2014. The analysis was done with a combination of methods, which included a predefined rating curve method for nitrate plus nitrite and total nitrogen for water years 2009 to 2011...

Mullaney, John R.; Martin, Joseph W.; Morrison, Jonathan
Mullaney, J.R., Martin, J.W., and Morrison, J., 2018, Nitrogen concentrations and loads for the Connecticut River at Middle Haddam, Connecticut, computed with the use of autosampling and continuous measurements of water quality for water years 2009 to 2014: U.S. Geological Survey Scientific Investigations Report 2018–5006, 22 p., https://doi.org/10.3133/sir20185006.

Year Published: 2016

Historical files from Federal Government mineral exploration-assistance programs, 1950 to 1974

The Defense Minerals Administration (DMA), Defense Minerals Exploration Administration (DMEA), and Office of Minerals Exploration (OME) mineral exploration programs were active over the period 1950–1974. Under these programs, the Federal Government contributed financial assistance in the exploration for certain strategic and critical minerals. The...

Frank, David G.
Frank, D.G., 2016, Historical files from Federal Government mineral exploration-assistance programs, 1950 to 1974: U.S. Geological Survey Data Series 1004, http://dx.doi.org/10.3133/ds1004.

Year Published: 2004

Estimated water use and availability in the Pawcatuck Basin, southern Rhode Island and southeastern Connecticut, 1995-99

In 1988, the Pawcatuck Basin (302.4 square miles) in southern Rhode Island (245.3 square miles) and southeastern Connecticut (57.12 square miles) was defined as a sole-source aquifer for 14 towns in southern Rhode Island and 4 towns in southeastern Connecticut. To determine water use and availability, the six subbasins in the Pawcatuck Basin were...

Wild, Emily C.; Nimiroski, Mark T.
Estimated water use and availability in the Pawcatuck Basin, southern Rhode Island and southeastern Connecticut, 1995-99; 2004; SIR; 2004-5020; Wild, Emily C.; Nimiroski, Mark T.

Year Published: 1995

Estimated use of water in the New England States, 1990

Data on freshwater withdrawals in 1990 were compiled for the New England States. An estimated 4,160 Mgal/d (million gallons per day) of freshwater was withdrawn in 1990 in the six States. Of this total, 1,430 Mgal/d was withdrawn by public suppliers and delivered to users, and 2,720 Mgal/d was withdrawn by domestic, commercial, industrial,...

Korzendorfer, B.A.; Horn, M.A.
Estimated use of water in the New England States, 1990; 1995; WRI; 94-4252; Korzendorfer, B. A.; Horn, M. A.

Year Published: 1993

Estimated withdrawals and use of freshwater in Connecticut, 1990

Korzendorfer, B.A.; Horn, M.A.
Estimated withdrawals and use of freshwater in Connecticut, 1990; 1993; WRI; 93-4010; Korzendorfer, B. A.; Horn, M. A.

Year Published: 1990

National water summary 1987: Hydrologic events and water supply and use

Water use in the United States, as measured by freshwater withdrawals in 1985, averaged 338,000 Mgal/d (million gallons per day), which is enough water to cover the 48 conterminous States to a depth of about 2.4 inches. Only 92,300 Mgal/d, or 27.3 percent of the water withdrawn, was consumptive use and thus lost to immediate further use; the...

Carr, Jerry E.; Chase, Edith B.; Paulson, Richard W.; Moody, David W.
Attribution: Water, Central Midwest Water Science Center, Dakota Water Science Center, , , Kansas Water Science Center, Minnesota Water Science Center, Pennsylvania Water Science Center, Texas Water Science Center, Utah Water Science Center, Wisconsin Water Science Center, Water Resources, Water Availability and Use Science Program, Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Puerto Rico, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, U.S. Virgin Islands, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming, United States of America
National water summary 1987: hydrologic events and water supply and use; 1990; WSP; 2350; Carr, Jerry E.; Chase, Edith B.; Paulson, Richard W.; Moody, David W.

Year Published: 1988

Offstream freshwater use in Connecticut, 1985

Bigham, Douglas K.; Bohr, Jacob R.
Offstream freshwater use in Connecticut, 1985; 1988; OFR; 88-457; Bigham, Douglas K.; Bohr, Jacob R.

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USGS
January 16, 2012

Overview

The Connecticut River UnImpacted Streamflow Estimation (CRUISE) tool combines the utility of catchment delineation at any location along a stream with the estimation and serving of daily streamflow information. The CRUISE tool is freely-available and requires only an internet connection and Microsoft Excel version 2000 or higher. 

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A saltwater tracer was injected into the shallow aquifer at a uranium-contaminated site in Colorado
December 31, 2017

A saltwater tracer was injected into the shallow aquifer

Hydrogeophysics Laboratory — Storrs, Connecticut. A saltwater tracer was injected into the shallow aquifer at a uranium-contaminated site in Colorado and monitored for 28 days using a combination of geophysical and well-sampling arrays; the sampling array is marked by the white standpipes adjacent to the central injection tank.

SeaBOSS on the fantail of the R/V Connecticut
November 30, 2017

SeaBOSS on the fantail of the R/V Connecticut on Long Island Sound

SeaBOSS on the fantail of the R/V Connecticut on Long Island Sound at sunrise

USGS personnel adjusting SeaBOSS equipment
November 30, 2017

USGS personnel adjusting equipment on the SeaBOSS

USGS personnel adjust equipment on the SeaBOSS on the fantail of the R/V Connecticut on Long Island Sound

image of the SeaBOSS and USGS personnel on the fantail of the R/V Connecticut on Long Island Sound
November 30, 2017

SeaBOSS Survey on Long Island Sound

Image of the SeaBOSS and USGS personnel on the fantail of the R/V Connecticut in Long Island Sound

Spider crab and rocks on the seafloor in Long Island Sound
November 30, 2017

Feeling crabby

Seafloor photograph of a spider crab, sediment, rocks, taken by the Woods Hole Coastal and Marine Science Center SeaBOSS during a deployment off the R/V Connecticut in Long Island Sound

Long Island Sound Survey team
November 30, 2017

Long Island Sound Survey Team

Long Island Sound Survey mapping team.  This project is a collaboration of several agencies and institutions including Univ of Connecticut, Univ of New Haven, Connecticut Department of Energy and Environmental Protection, NOAA, LDEO, USGS

September 30, 2017

USGS Hurricane Preparedness

Before a hurricane, USGS Scientists undertake a data collection effort of a grand scale. They install a temporary mobile network of sensors along the coasts to collect additional data on the intensity of storm surge, one of the most dangerous elements of a hurricane. This effort provides critical information that allows various USGS partners and emergency responders to

...
August 28, 2017

Image of the Week: Gypsy Moth Infestation Continues in New England

Gypsy Moth populations are at their highest levels since the 1980s, causing damage to hardwood trees in the New England area.

At the USGS EROS Center, we study land change, operate the Landsat satellites, and maintain the longest, continuously acquired collection of images of the Earth's land surface.

USGS EROS Center (

...
Flowing stream passing a streamgage with swirling leaves in the water
October 20, 2016

Streamgage in Connecticut

A beautiful capture of a streamgage at Bunnell Brook near Burlington, CT.

A weir structure controls the height of the water, so a stable relation between stream stage and flow can be maintained. The gage house is the concrete structure in the photo, and has been used to collect streamflow data since 1931. Recent drought conditions have reduced the flow to a trickle

...
As US models predicted Hurricane Joaquin washed out a road at Kitty Hawk, NC in 2015.
June 1, 2016

Hurricane erodes N.C. road

As US models predicted Hurricane Joaquin washed out a road at Kitty Hawk, NC in 2015.

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New England Newsletter Spring 2018 cover
March 22, 2018

Spring 2018 WaterMarks continues a regular series of newsletters from the USGS New England Water Science Center to cooperating agencies, collaborators, and others interested our work. This issue features:

  •  Links to new reports and journal articles by our staff
  •  Current hydrologic conditions, with a focus on winter ice in streams 
  •  Highlights of several new interpretive studies 
Nor'easter
March 1, 2018

USGS field crews are deploying storm-tide and wave sensors today from Maine to Delaware to track and study a Nor’easter forecasted to begin tomorrow.

Measuring high water mark - blizzard of January 2018 in New England
January 15, 2018

Significant flooding along the coast of Massachusetts occurred Thursday, January 4, 2018, caused by a powerful blizzard.  Peak storm surge of approximately 3.00 feet occurred at the astro high tide; and, according to the National Weather Service, is the highest since records began at the Boston tide station in 1921. 

Long Island Sound Survey team
December 12, 2017

Geological Sampling (videos, photos and sediment samples) in Long Island Sound on the newly stretched R/V Connecticut with scientist from USGS, UConn and Univ of New Haven

Image shows a geologic map of the Lower 48
August 21, 2017

A carbonatite here, a glacial moraine there, a zig-zagging fault or two, even a behemoth of a batholith. The geology of the 50 States is an enormous patchwork of varied forms, beautiful in their variance but challenging to present as a single map.

USGS
May 3, 2017

A report published today by the U.S. Geological Survey, in cooperation with the Connecticut Department of Public Health, reveals that water from some private wells across the state has registered high levels of Arsenic and Uranium.

Scientists deploy high-tech buoy in Lake Winnipesaukee
June 27, 2016

A high-tech buoy that monitors water quality in real time was just installed in one of New England’s most popular lakes, where in the future it will help with determining when swimmers should and shouldn’t be in the water. 

Image: Methane Seeps along Offshore Virginia
June 16, 2016

Recent scientific work has confirmed the source, composition and origin of methane seeps on the Atlantic Ocean seafloor, discovered in 2012, where scientists never expected them to be.

As US models predicted Hurricane Joaquin washed out a road at Kitty Hawk, NC in 2015.
June 1, 2016

New USGS models help predict storm effects on beaches

As the 2016 hurricane season opens, weather forecasters, emergency managers and coastal residents have access to tools developed by the U.S. Geological Survey that predict, more precisely than ever, where beach erosion and beachfront flooding will take place during hurricanes and other storms.

 

Map of the 48 contiguous states showing Microcystin concentrations
May 31, 2016

First-of-its-kind survey shows that algal toxins are found nationwide

USGS
March 22, 2016

Water quality in Connecticut streams flowing into Long Island Sound has steadily improved over the last 40 years, according to a new U.S. Geological Survey study. 

collage of scientists conducting science related to each mission are
March 14, 2016

Much of the coast from Maine to Virginia is more likely to change than to simply drown in response to rising seas during the next 70 years or so, according to a new study led by the U.S. Geological Survey.

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