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USGS Water Data for Dist. of Columbia

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Search for Sites With Data
Current Conditions
Sites with real-time or recent surface-water, groundwater,or water-quality data.
Site Information
Descriptive site information for all sites with links to all available water data for individual sites.
Nwis Mapper
Map of all sites with links to all available water data for individual sites.
Frequent Searches By Data Category
Surface Water
Water flow and levels in streams and lakes.
Groundwater
Water levels in wells.
Water Quality
Chemical and physical data for streams, lakes, springs, wells and other sites.
Water Use
Water use information.
Introduction

The U.S. Geological Survey's (USGS) National Water Information System (NWIS) is a comprehensive and distributed application that supports the acquisition, processing, and long-term storage of water data. USGS Water Data for the Nation Site serves as the publicly available portal to a geographically seamless set of much of the water data maintained within NWIS.

USGS Water Data for the Nation Site provides access to water data from over 1.5 million sites in all 50 States and additional border and territorial sites. The data are organized within the categories listed to the left.

The water data available via this site have been acquired as part of the USGS investigations of the occurrence, quantity, quality, distribution, and movement of the surface and underground waters that constitute the Nation's water resources. Additional information about the USGS and water resources of the Nation is available at water.usgs.gov.

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