Search for Sites With Data
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Sites with real-time or recent surface-water, groundwater,
or water-quality data.
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Descriptive site information for all sites with links to all available water data for individual sites.
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Map of all sites with links to all available water data for individual sites.
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Frequent Searches By Data Category
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Water flow and levels in streams and lakes.
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Water levels in wells.
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Chemical and physical data for streams, lakes,
springs, wells and other sites.
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Water use information.
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These pages provide access to water-resources data collected at approximately 1.5 million sites in all 50 States, the District of Columbia, Puerto Rico, the Virgin Islands, Guam, American Samoa and the Commonwealth of the Northern Mariana Islands. Online access to this data is organized around the categories listed to the left. The USGS investigates the occurrence, quantity, quality, distribution, and movement of surface and underground waters and disseminates the data to the public, State and local governments, public and private utilities, and other Federal agencies involved with managing our water resources.
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