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Stormwater Program


The Stormwater Program develops and implements programs to protect North Carolina’s surface waters from stormwater runoff:

  • NPDES Industrial Stormwater Program:  Covers approximately 4,130 facilities (3100 under general permits, 150 under individual permits, and 880 facilities under no exposure certifications).  Industrial activities are required to manage and monitor their facilities for potential sources of stormwater pollution.
  • NPDES MS4 Program:  Covers 112 entities within urbanizing areas, such as municipalities, counties and universities. Other MS4 permittees include military bases and NCDOT.  MS4 entities implement measures within their jurisdictions to prevent and control stormwater pollution from developed areas.
  • NPDES Construction Program:  Covers construction activities that disturb one or more acre under a general permit (NCG01000).  Permittee must have an Erosion and Sedimentation Control Plan, adhere to materials handling protocols, inspect their sites and keep records.  We partner with the DEMLR Sediment Program to implement the requirements of this program. 
  • Post-Construction Program:  Requires new developments to have permanent stormwater management measures after the project is built.  There are numerous post-construction programs, including Water Supply Watershed, Coastal Counties, MS4 Tipped, HQW & ORW, and Special Watersheds.
  • The Stormwater Design Manual is a technical guidance document about implementing the rules pertaining to post-construction stormwater.  The companion to the manual is the Stormwater Control Measure Credit Document, which includes the state’s estimation of each SCM’s effectiveness in protecting hydrology and removing pollutants.
  • Compliance assistance for all of the above programs.

See the 2017 Annual Report on State Stormwater to learn more about recent developments in the NC Stormwater Program.  

Active Permits

The following are provided for informational purposes only and are accurate as of the date of posting:

Active NPDES Stormwater Permit List  updated 10/2018

Active State Stormwater Permit List updated 10/2018

Active Stormwater Permits Map  

  • Yellow dots indicate NPDES Individual Permits and NPDES General Permits.
  • Purple dots indicate NPDES No Exposure Certifications.
  • Green dots indicate Post-Construction Permits.

Updates for June 2018

  • DEQ has won an award from ESRI (an international supplier of geographic information system software) in recognition of our innovative mapping applications, including the Stormwater Permitting Map.  The award will be publicly announced at the ESRI User Conference in San Diego this July.
  • The General Permits for Apparel, Printing, Rubber (NCG05), Stone, Clay and Glass (NCG07), Treatment Works (NCG11), and Non-metal Waste and Scrap (NCG13) were issued on May 31, 2018.
  • The General Permits for Construction Activities (NCG01) and Timber (NCG21) will be out for public notice from June 15, 2018 until July 16, 2018.  Both are scheduled to be issued on July 31, 2018