USGS Water-Quality Information
NoteworthyLocal Science Feature: National & Regional Science: Water Quality DataNational Water Information System (NWIS)
Today's Water Conditions
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USGS in Your AreaUSGS Water Science Centers are located in each state. |
Past "Noteworthy" ListingsFeatured Local Science: California Water Science Center - Pesticides flowing into the Salton Sea USGS investigations of national and regional trends in ground-water quality [30KB PDF] |