EPA's Office of Water
Directory and searching of U.S. EPA water-related web resources, imagery, animations, kid's pages, publications, and links about U.S. water resources.
Oklahoma Water Quality Division
Oklahoma's state department of environment, water quality section.
South Florida Water Management District
Regional agency responsible for planning and regulation of consumptive uses of water, regulation of wetlands and other water related activities including restoration of the Evergla…
Southwest Florida Water Management District
SWFWMD is a state/local governmental regulatory agency which issues water use permits, among other responsibilities
Susquehanna River Basin Commission
Site provides listings of Commission activities and projects, technical reports and summaries of hydrologic conditions in the basin.