See also:

• Science: Environment: Water Resources  (1,391)

Center for Environmental Education and Information - CEEI documents polluted streams in the United states by publishing on the web all the Clean Water Act 303(d) lists and documentation..

Great Lakes Aquatic Habitat Network and Fund - Provides information and financial support to those working to protect and restore shorelines, lakes, rivers, wetlands, and other aquatic habitats in the Great Lakes Basin. Includes news and grant information..

Ground Water Atlas of the United States - Online USGS publication describes U.S. ground-water resources by region. Covers the 50 states, Puerto Rico, and the U.S. Virgin Islands..

RiverWeb's American Bottom Landing Site - Explore information about the environment, history, and cultures of this important part of the Mississippi River valley..

USGS - Arsenic in ground water of the United States - Publications, maps, and data on arsenic in U.S. groundwater..

USGS -- Water Resources of the United States - Information about water resources from the U.S. Geological Survey. Topics include ground water, surface water, water use, water quality, acid rain, toxic substances hydrology..