the entire directory only in Science_and_Environment/Water_Resources

See also:

• Science: Environment: Water Resources (1,294)

• 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.

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