New England Water Science Center

Data and Tools

Much of our data is publicly available through the USGS National Water Information System, but additional datasets and analytical tools are also available.

Current Conditions:

Streamflow:   CT | ME | MA | NH | RI | VT

Water Quality:   CT | ME | MANH | RI | VT

Groundwater:    CT | ME | MANH | RI | VT

Precipitation:    CT | ME | MA | NH | RI | VT

Lakes and Reservoirs:    ME | MA | NH | VT

USGS StreamStats

USGS StreamStats

Interactively identify a watershed boundary and obtain detailed streamflow statistics.

For an introduction to StreamStats click HERE

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USGS WaterAlert

USGS WaterAlert

Use the interactive map to browse the network of USGS sites by data type. 

WaterAlert Map
Filter Total Items: 75
Date published: January 1, 2018

Field measurements of lakebed groundwater temperatures, July 2008, August 2014, and August 2015, Ashumet Pond, Falmouth, MA

This dataset contains field measurements of lake-bottom groundwater temperatures collected during three surveys in July 2008, August 2014, and August 2015, by using a handheld thermocouple probe and GPS at a permeable reactive barrier at Ashumet Pond, Falmouth, MA. Included in the comma-separated file are unique site identifiers and location of measurement points, temperatures, dates, and...

Date published: October 26, 2017

Field Measurements of Lake-Bottom Seepage Near a Permeable Reactive Barrier, Ashumet Pond, Falmouth, MA

This dataset contains field measurements of direct groundwater seepage using half-barrel style seepage meters permanently installed in a lake-bottom permeable reactive barrier (PRB) at Ashumet Pond, Falmouth, MA. The meters are a modified version of the design by Lee (1977) and measurements followed practical considerations by Rosenberry and LaBaugh (2008). Each meter consists of a 208-L...

Date published: August 31, 2017

Rainfall and streamflow data for computing lag to peak at streamgages representing small drainage areas in Maine (2008-2015)

These are rainfall and stream stage data collected at gaging sites in Maine. Data were collected from March to October from 2008 to 2015 and include stage data at crest stage gages, ratings to convert stage data to streamflow data, previously unpublished rainfall data, rainfall binned into specified time intervals, and storm files combining rainfall and streamflow data. Data were collect

Date published: March 16, 2017

Poly- and perfluoroalkyl substances in contaminated groundwater, Cape Cod, Massachusetts, 2014-2015

The U.S. Geological Survey Toxic Substances Hydrology Program Cape Cod Research site has been the subject of intensive hydrological and geochemical investigations. The site has multiple sources of poly- and perfluoroalkyl substances (PFASs), including perfluorooctane sulfonate (PFOS) and perfluorooctanoate (PFOA), for which the U.S. Environmental Protection Agency has issued healt

Date published: January 1, 2017

Data related to the degree of potential human influence near 2228 groundwater wells in the U.S. glacial aquifer system

This dataset contains information on the degree of potential human influence near 2228 groundwater wells in the U.S. glacial aquifer system. Data include well identification number, name, latitude, longitude, potential-human-influence category, percent urban and crop land use in a 500 meter radius around each well, and measures of county-based groundwater use and irrigation.

Date published: January 1, 2017


This data release contains well yield and ancillary data for 7,287 bedrock wells used in an analysis of bedrock well yield in the Nashoba Terrane and surrounding area in eastern and central Massachusetts. The data release also contains Geographic Information System (GIS) data layers of lineaments delineated from aerial photographs and digital elevation data for a part of the Nashoba Terrane...

Date published: January 1, 2017


This data set is line data layer of lineaments delineated in the Ayer, Hudson, Marlborough, and Westford quadrangles from shaded Digital Elevation Model (DEM) data by the U.S. Geological Survey (USGS). The lineaments are used in an analysis of well yield in the Nashoba Bedrock Terrane in central and eastern Massachusetts that is described in USGS Scientific Investigations Report 201

Date published: January 1, 2017

Testing data set for independent analysis of New Hampshire arsenic model

This data release contains a table of measured arsenic concentrations and associated model input variables used to test existing multivariate logistic regression models that predict the probabilities of arsenic concentrations exceeding threshold values of 1, 5, and 10 micrograms per liter in bedrock aquifers of New Hampshire. Location data are censored to the county level.

Date published: January 1, 2017

Simulated Groundwater-Contributing Areas to Selected Streams, Ponds, Coastal Water Bodies, and Production Wells, Plymouth-Carver Region and Cape Cod, Massachusetts

The U.S. Geological Survey (USGS) assisted the Massachusetts Department of Environmental Protection (MassDEP) with the Massachusetts Estuary Project (MEP), by delineating groundwater-contributing areas to various hydrologic features including ponds, streams, and coastal water bodies, throughout southeastern Massachusetts. These contributing areas were delineated over a 6-year

Date published: January 1, 2017

Thirty- and ninety-year data sets of streamflow, groundwater recharge, and snowfall simulating potential hydrologic response to climate change in the 21st century in New Hampshire

The U.S. Geological Survey (USGS), in cooperation with the New Hampshire Department of Environmental Services (NHDES) and the Department of Health and Human Services (NHDHHS), has developed data to assess the effects of short- and long-term climate change on hydrology in New Hampshire. A USGS Scientific Investigations Report (SIR) documents the datasets developed by the USGS.

Date published: January 1, 2017

Variables used as input to a logistic regression model to estimate high-arsenic domestic-well population in the United States, 1970 through 2013

Approximately 44.1 million people (about 14 percent of the U.S. population) rely on domestic wells as their source of drinking water. Unlike community water systems, which are regulated by the Safe Drinking Water Act, there is no comprehensive national program for testing domestic well water to ensure that is it safe to drink. There are many activities, e.g., resource extraction,

Date published: January 1, 2017

Concentrations of arsenic in water from public-supply and domestic wells in New Hampshire (2004-2006)

Groundwater samples from public and private drinking water wells throughout the state of New Hampshire were analyzed for total Arsenic (As). Samples were collected after pH, specific conductivity, dissolved oxygen, and water temperature had met stabilization criteria as outlined in the USGS National Field Manual (United States Geological Survey 2005).The As analyses were carried out