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Top: Regional: North_America: United_States: Science_and_Environment: Water_Resources:
See also:
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» 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.
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» 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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