At this time, EPA is not requiring a NPDES aquatic pesticide permit for the application of pesticides in, near, or around U.S. waters. However, EPA is required to develop and issue an aquatic pesticide permit by April 2011.
For more information, see our article "So When Am I Going to Need a NPDES Aquatic Pesticide Permit?" at http://enviro.blr.com/news.aspx?id=101266.