The National Pollution Discharge Elimination System (NPDES) is a permit process that has been in effect under the Clean Water Act (CWA) since 1972, and regulates point source pollution to the waters of the nation. Until recently, the application of pesticides and specifically mosquito control have been exempt from this permit since they were regulated instead by the Federal Insecticide, Fungicide and Rodenticide Act (FIFRA).
Effective Jan 1, 2012, mosquito control and other pesticide applications will need to apply for and obtain NPDES Pesticides General Permit (PGP) which is issued in North Carolina by the Division of Water Quality (DWQ). To obtain a copy of the application, please see: http://portal.ncdenr.org/web/wq/swp/ps/npdes/appforms Select the tab for "General Permits" and select the APPLICATION link for NCG560000 Pesticide- Application. For general information, please see DWQ's website at http://portal.ncdenr.org/web/wq/swp/ps/npdes/permitprocess#General_Permits