USGS -- Water Resources of the United States

USGS Groundwater Watch

The USGS has a distributed water database that is locally managed. Surface water, groundwater, and water quality data are compiled from these local, distributed databases into a national information system. The groundwater database contains records from about 850,000 wells that have been compiled during the course of groundwater hydrology studies over the past 100 years. Information from these wells is served via the Internet through NWISWeb, the National Water Information System Web Interface. NWISWeb provides all USGS groundwater data that are approved for public release. This large number of sites is excellent for some uses, but complicates retrievals when the user is interested in specific networks, or wells in an active water-level measurement program.

These "groundwater watch" web pages group related wells and data from these active well networks, and provide basic statistics about the water-level data collected by USGS water science centers for Cooperative Programs, for Federal Programs, and from data supplied to us by our customers through cooperative agreements.

Groundwater Watch is maintained by the Office of Groundwater.

National Networks
Active Groundwater Level Network
Active Groundwater Level Network Contains water levels and well information from more than 20,000 wells that have been measured by the USGS or USGS cooperators at least once within the past 13 months.

National Aquifer Composite Hydrographs	Climate Response Network
National Aquifer Composite Hydrographs Contains composite hydrographs from selected national aquifers with wells whose period of record is 30 years or greater.	Climate Response Network A network of wells to monitor the effects of droughts and other climate variability on groundwater levels

Real-Time Groundwater Level Network	Long-Term Groundwater Data Network
Real-Time Groundwater Level Network A network of wells that transmit water levels to USGS offices every 1 to 4 hours, depending on the data relay technique used	Long-Term Groundwater Data Network Actively-measured periodic, continuous, and/or real-time wells with at least 20 years of measurements
Below Normal Groundwater Levels	Active Spring Monitoring Sites
Below Normal Groundwater Levels Contains water levels from wells where the most recent water-level is in the 24th percentile or lower of the period of record statistics	Active Spring Monitoring Sites The Active Springs Monitoring Sites web pages provide data from more than 100 springs in the active measurement program of the U.S. Geological Survey across the nation.

Principal Aquifers

State and Local Networks

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U.S. Department of the Interior |U.S. Geological Survey
URL: https://groundwaterwatch.usgs.gov/usgsgwnetworks.asp
Page Contact Information: Contact the USGS Office of Groundwater
Last update: Thursday, March 02, 2017 at 15:10