What is the difference between intermittent and perennial streams and why is it important?
A. Perennial streams flow 365 days a year in a normal year. Intermittent streams have short or lengthy periods of time when there is no flow in a normal year. Both are important ecologically, however, because many intermittent streams have lengthy periods of no flow, impacts to more than 300 linear-feet of an intermittent stream may still be minimal in some cases. Q. Has the Corps coordinated these changes with other federal agencies? A. Yes. USACE coordinated with the U.S. Environmental Protection Agency, U.S. Fish and Wildlife Service, National Marine Fisheries Service, Federal Emergency Management Agency, Office of Management and Budget, the President’s Council on Environmental Quality, and others.
