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USGS Water Services
This site serves USGS water data via automated means using web services and extensible markup language (XML), as well as other popular media types. Services are invoked with the... -
National Water-Quality Assessment (NAWQA) Project
Our surface water, groundwater, and aquatic ecosystems are priceless resources, used by people across the Nation for drinking, irrigation, industry, and recreation. The... -
Source Water Protection Areas
Source Water is the raw, untreated supply of water from surface water or groundwater used for current or future drinking water. Source Water protection reduces the risk of water... -
USGS Geochemical Database for the Brackish Groundwater Assessment of the Unit...
Brackish groundwater (BGW), defined for this assessment as having a dissolved-solids concentration between 1,000 and 10,000 milligrams per liter is an unconventional source of...
