Online annual reports (since 1999) documenting hydrologic data for Pennsylvania gathered from USGS surface water and ground water data-collection networks and information on ordering paper copies of previous years.
Geospatial hydrologic and reference data covering the upper Mississippi River, provided in formats appropriate to geographic information systems (GIS) and used in long-term resource monitoring of the area.
Summary of the USGS benchmark glacier program to intensively monitor climate, glacier motion, glacier mass balance, glacier geometry, and stream runoff at three glacier basins, Gulkana and Wolverine in Alaska and South Cascade in Washington.
Real-time and historic data from gaging stations for water and mudflow detection in the Mount St. Helens, WA vicinity with data tables and plots, interactive location map and station descriptions.
Includes hydrographic information from 2000 to last seven days, water-quality data, elevation, area, and capacity data and publications on Devils Lake, North Dakota in the Red River of the North basin.
Map showing a network of selected ground water wells in the U.S. The water levels in these wells are used to monitor the effects of droughts and other climate variability.
Lead page to connect to ground water information on the Nation's ground water resources and ground water activities of the USGS. Includes links to ground-water data, news reports, publications, field techniques, models, programs, and issues.
National Water Information System (NWIS) real-time data on selected ground water sites, ground water level data, site inventory of wells, test holes, drains, springs and excavations and ground water-quality data for the United States.
The Hydro-Climatic Data Network, or HCDN, consists of streamflow records for 1,659 sites throughout United States and its Territories. Records span the period 1874 through 1988, and represent a total of 73,231 water years of information.
Links by map location or station number to real-time stage and streamflow, real-time water quality, ground-water data, long-term hydrographs, and annual water-data reports to view and download for past and current water conditions in North Dakota.
Drought map of Kansas link to real-time data for stream gaging stations and links to historic droughts of Kansas, ground water, drought definitions, and references.
Flood map of Kansas link to real-time data for stream gaging stations and links to flood press releases, historic floods of Kansas, flood frequency data, photos, information on hydrology of floods, and flood hazard maps.
Links to streamflow, surface and ground water, water quality, flood, drought, and precipitation data in real-time and for historic time periods for Massachusetts and Rhode Island.
Links to websites providing data and information related to Michigan hydrology including droughts, floods, current water conditions, Great Lakes water levels, climatology, and weather.
Overview of the Surface-Water Data & Analysis Section of the Missouri District with links to real-time and historic water data, staff members, and projects on bridge scour and gaging station network.
Homepage for the Missouri District Water-Quality Data & Analysis Section with links to data networks, projects, data availability, mobile laboratories, sampling boat, quality assurance practices, and real-time water-quality data.
Main page for National Hydrography Dataset (NHD), a comprehensive set of digital spatial data about surface water features, with links to references, data, software tools, applications, tutorials, technical support, and data maintenance.
National Information Water System (NWIS) water data for Illinois including real-time current conditions, streamflow data, site information, ground-water data, and water-quality data.
NWISWeb homepage for the National Water Information System providing access to water-resources data collected at approximately 1.5 million sites in all 50 States, the District of Columbia, and Puerto Rico.
Primary homepage for the National Water Quality Assessment (NAWQA) Program studying water quality in river, aquifer and coastal water basins throughout the nation. Links to reports, data, models, maps and national synthesis studies.
The Great and Little Miami River Basins form a National Water Quality Assessment (NAWQA) Program study unit for studying the status, trends, and changes affecting the nation's water quality. Site links to data, publications, maps, and results.
The Puget Sound Basin is a National Water Quality Assessment (NAWQA) Program study unit for studying the status, trends, and changes affecting the nation's water quality. Site links to data, publications, and results.
Data warehouse for national water quality program with links to chemical, biological, and physical data for water, sediment and animal tissues, nutrient, pesticide, and VOC levels, streamflow, and ground water levels from national study units.
Trace elements are inorganic chemicals occurring in small amounts in nature. This web site of the National Water Quality Assessment links to U.S. data, publications, news, and other sites on trace metals, metalloids and radionuclides in water.
Historical maps and animations of maps for monthly and annual streamflow conditions by water year showing generalized contour patterns of streamflow conditions. Maps are for the United States, Canada, and Puerto Rico.
Links to New Jersey ground-water data including hydrogeology with a geologic map and description of major aquifers, water levels including real-time data and drought levels, and water-quality information.
Links to water data for New Jersey including streamflow, sampling stations, and water-quality data with links to reports on stream gages, hydrology, networks, and floods.
Site for ground water level data and additional information for New Jersey wells in the most important aquifers in New Jersey. Links to well stations are grouped by county and township giving access to hydrographs and data.
This Nutrients National Synthesis Project site on the U.S. study of nutrients, especially nitrogen and phosphorus, as contaminants in high concentrations links to an overview, study team, featured reports, publications, and national datasets.
An assessment of pesticides in national water resources, with links to national reports, national statistics, national data, pesticide use, analytical strategy, and standards for the U.S.
In 1931, the USGS established a statewide network of wells in Pennsylvania to monitor water-level fluctuations. This network consists of 68 wells to monitor ground water conditions during droughts. Links to ground-water data, hydrographs, and levels.
Streamflow statistics and basin characteristics for most streams in specific US states using the Streamstats program. Data for areas can be selected from interactive maps and by an automated process. Includes a tutorial.
Lead page for detailed United States surface water information with links to real-time and historic streamflow data, suspended sediment data, USGS programs and facilities, publications, techniques, and featured news releases.
Homepage for USGS national surface-water data with more than 850,000 station years of time-series data for stream levels, streamflow (discharge), reservoir and lake levels, surface-water quality, and rainfall plus real-time data and tutorial.
Links for the Tides and Inflows in the Mangroves of the Everglades (TIME) project on the effects of freshwater and tidal flows on the Everglades mangroves. With links to software & manuals, time data, photos, animations, and bibliography.
Maps of three ground-water monitoring networks that group related wells and data from active well networks, and provide basic statistics about the water-level data collected by USGS.
List of links to electronic USGS products and publications and/or information on obtaining products in paper or other formats arranged by discipline, media type, and online products, and links to USGS libraries.
U.S. map of real-time streamflow compared to historical values with links to U.S. maps and data of surface water, ground water, precipitation, river conditions and floods and other information on current and past water resources conditions.
Homepage of the Office of Water Quality programs on the quality of the Nation's surface water and ground water resources, with links to general information, quality assurance, software, data, publications, USGS facilities, techniques, and programs.
Thirty year database of water-quality data, visual data displays, and project information on the San Francisco Bay directed towards following and understanding changes in the water quality of San Francisco Bay.
Access to data on water resources of Washington including surface water, ground water, water quality, water use, GIS, and biological datasets and access to reports.
USGS water resources home page with links to detailed hydrologic information for Maryland, Delaware, and District of Columbia on ground and surface water, water quality, real-time records, news releases, local weather, and reservoir levels.
USGS water resources home page for Alabama with links to hydrologic studies and real-time and long-term data on streamflow, surface water, drought conditions, rain, and water quality.
USGS water resources home page for Alaska with links to detailed hydrologic studies and real-time and historic data on streamflow, ground and surface water, glaciers, and water quality plus research activities, publications, and contacts.
USGS water resources home page for Arizona with detailed hydrologic studies and real-time and long-term data on streamflow, ground and surface water, water quality, and well levels plus current conditions, publications, and projects.
USGS water resources home page for Arkansas with links to detailed hydrologic studies and real-time and long-term data on streamflow, ground and surface water, water quality, water use, and rain with links to publications and research partners
USGS water resources home page for California with links to detailed hydrologic studies and real-time data on streamflow, ground and surface water, and water quality, plus links to online reports, current issues, data archives and image archive.
USGS water resources home page for Colorado with links to detailed hydrologic studies and real-time and long-term data on streamflow, snowpack, sediment, ground and surface water, and water quality, plus publications, news, and drought watch.
USGS water resources home page for Connecticut with links to detailed hydrologic studies and real-time and long-term data on streamflow, ground and surface water, water quality, streamflow conditions, gage stations, and drought.
USGS water resources home page for Florida with links to detailed hydrologic studies with real-time and long-term data on streamflow, ground and surface water, and water quality, plus publications and products, projects, news, and water watch.
USGS water resources home page for Georgia with links to detailed hydrologic studies and real-time and long-term data for streamflow, ground and surface water, water quality, and floods, plus drought watch, current projects, and connections.
USGS water resources home page for Hawaii, Micronesia, and American Samoa with links to detailed hydrologic studies and real-time and long term data on streamflow, ground and surface water, water quality, rainfall, water use and current issues.
USGS water resources home page for Idaho with links to detailed hydrologic studies and real-time and long-term data on streamflow, ground and surface water, water quality, and water use, plus drought watch and relevant publications.
USGS water resources home page for Illinois with links to detailed hydrologic studies and real-time and long-term data on streamflow, ground and surface water, droughts, flooding, and water quality with highlights and project information.
USGS water resources home page for Indiana with links to detailed hydrologic studies and real-time and long-term data for streamflow, ground and surface water, drought, and water quality plus GPS ground station data and publications.
USGS water resources home page for Iowa with links to hydrologic studies and real-time and historical data on floods, streamflow, ground and surface water, sediment, precipitation, and water quality plus news releases, publications and contacts.
USGS water resources home page for Kansas with links to detailed hydrologic studies and real-time and historical data on streamflow, ground and surface water, and water quality plus flood watch, drought watch, publications, and district news.
USGS water resources home page for Kentucky with links to detailed hydrologic studies, real-time and historical data on streamflow, ground and surface water, flow duration, and water quality plus program highlights, contacts, and news.
USGS water resources home page for Louisiana with detailed hydrologic studies and real-time and long-term data for streamflow, ground and surface water, water quality, and water supply with publications, contacts, and current conditions.
USGS water home page for Maine with detailed hydrologic studies and real-time and long-term data for streamflow, ground and surface water, snow, and water quality plus drought watch, press releases, projects, and contacts.
USGS water resource home page for Massachusetts and Rhode Island with detailed hydrologic studies and historic and real-time data on streamflow, ground and surface water, basins, floods, droughts, and water quality, plus district news.
USGS water resources home page for Michigan with links to detailed hydrologic studies and historic and real-time data on streamflow, ground and surface water, weather, water management, droughts, floods, and water quality.
Links to descriptions, publications, and photos of research projects in Michigan related to drinking water including source assessment, ground water availability, water resources, and contaminants in water.
USGS water resource home page for Minnesota with links to detailed hydrologic studies and historic and real-time data for streamflow, ground and surface water, floods, and water quality plus district information.
USGS water resources home page for Mississippi with links to detailed hydrologic studies and real-time and long-term data for streamflow, ground and surface water, precipitation, local weather, and flooding plus current events, projects and reports.
Water District homepage with links to detailed real-time and long-term water resources data for Missouri on streamflow, ground and surface water, and water quality.
USGS water resources home page for Montana with links to detailed hydrologic studies and historic and real-time data on streamflow, ground and surface water, floods, and water quality plus publications and district information.
USGS water resources home page for Nebraska with links to hydrologic studies and historic and real-time data on streamflow, ground and surface water, and water quality plus publications and related natural resources information.
USGS water resources home page for Nevada with links to detailed hydrologic studies and long-term and real-time data on streamflow, ground and surface water, droughts, and water quality plus district and publications information.
USGS water resources home page for New Hampshire and Vermont with links to hydrologic studies and historic and real-time data on streamflow, ground and surface water, water use, and water quality plus publications and district information.
USGS water resources home page for New Jersey with links to hydrologic studies and historic and real-time data on streamflow, ground and surface water, droughts, weather, and water quality plus district information.
USGS water resources home page for New Mexico with links to hydrologic studies and real-time and long-term data on streamflow, ground and surface water, and water quality plus map of basins.
USGS water resources home page for New York with links to current news and features, real-time and long-term data on acid rain, suspended sediment, ground and surface water, streamflow and water quality.
USGS water resources home page for North Carolina with links to hydrologic studies and long-term and real-time data on streamflow, ground and surface water, floods, droughts, precipitation, and water quality plus district information.
USGS water resources home page for North Dakota with links to hydrologic studies and long-term and real-time data on streamflow, ground and surface water, droughts, and water quality plus district and publications information.
USGS water resources home page for Ohio with links to hydrologic studies and long-term and real-time data on streamflow, ground and surface water, weather, water use, and water quality, plus district and publications information.
USGS water resources home page for Oklahoma with links to hydrologic studies and long-term and real-time data on streamflow, ground and surface water, climatology, droughts, and water quality plus district and publications information.
USGS water resources home page for Oregon with links to hydrologic studies and historic and real-time data on streamflow, ground and surface water, geographic information, and water quality plus district and publications information
USGS water resources home page for Pennsylvania with links to hydrologic studies and historic and real-time data on streamflow, ground and surface water, map/GIS information, and water quality plus district and publications information
USGS water resources home page for South Carolina with links to detailed hydrologic studies and real-time data on streamflow, ground and surface water, GIS information, acid rain, and water quality plus district and publications information.
USGS water resources home page for South Dakota with links to detailed hydrologic studies and historic and real-time data on streamflow, ground and surface water, and water quality plus district and publications information.
USGS water resources home page for Tennessee with links to detailed hydrologic studies and long-term and real-time data on streamflow, ground and surface water, and water quality plus district and publications information.
USGS water resources home page for Texas with links to historic and real-time data on streamflow, ground and surface water, floods, droughts, coastal storm surge, lakes and reservoirs, and water quality plus district and publications information.
USGS water resources home page for Utah with links to detailed hydrologic studies and long-term and real-time data on streamflow, ground and surface water, and water quality plus district and publications information.
USGS water resources home page for Virginia with links to detailed hydrologic studies and historic and real-time data on streamflow, ground and surface water, flooding, and water quality plus district and publications information.
USGS water resources home page for Washington State with links to detailed hydrologic studies and real-time data on streamflow, ground and surface water, water use, and water quality, plus GIS data, district and publications information.
USGS water resources home page for West Virginia with links to detailed hydrologic studies and historic and real-time data on streamflow, ground and surface water, water use, and water quality, plus district information and press releases.
USGS water resources home page for Wisconsin with links to detailed hydrologic studies and historic and real-time data on streamflow, ground and surface water, water use, and water quality, plus district and publications information.
USGS water resources home page for Wyoming with links to detailed hydrologic studies and long-term and real-time data on streamflow, ground and surface water, droughts, and water quality plus district and publications information.
USGS home page for the Caribbean, U.S. Virgin Islands, and Puerto Rico with links to projects, GIS data, publications, and real-time data for streamflow and rainfall of Puerto Rico, U.S. Virgin Islands, El Salvador, Guatemala, and Honduras.
Primary homepage for USGS programs in water resources with links to water data, publications and products, technical resources, major programs, and water information services.
Access to national water resources real-time data typically recorded at 15-60 minute intervals, stored onsite, and then transmitted to USGS offices every 4 hours. Select for site information, ground water, surface water, and water quality.
The Site Inventory System provides inventory of and access to data for sites at stream reaches, wells, test holes, springs, tunnels and other hydrologic locations where hydrologic data is collected by the USGS. Data can be viewed or downloaded.
Links to water use reports for the United States for 1985, 1990, and 1995 comparison of use and renewable water supply by region, handbook for collecting water-use data, and other information on national water use.
Homepage for USGS water quality information. The NWISWeb discrete sample database is a compilation of over 3.5 million historical water quality analyses in the USGS district databases. Also includes access to real-time data and a tutorial.
Links to major databases on USGS real-time and historic time period data for water quality, atmospheric deposition, streamflow, and suspended sediments and links to related databases of other agencies.
Gives map of streamflow conditions in Wyoming with access to streamflow data, real-time, daily and historic, plus information on drought analysis and management.
U.S. Department of the Interior |
U.S. Geological Survey