Stormwater Maps & GIS Resources
Active Stormwater Permits Map
This interactive map indicates the locations of current stormwater permitees:
- Yellow dots indicate NPDES Industrial General Permits.
- Orange dots indicate NPDES Industrial Individual Permits.
- Blue stars indicate NPDES MS4 Permits.
- Purple dots indicate NPDES No Exposure Certifications.
- Green dots indicate Post-Construction Permits.
- Construction Stormwater Permits are not on this map.
Active Stormwater Permits List
The following are provided for informational purposes only and are updated periodically:
- Construction NPDES Stormwater Permit List updated through 1/5/2021 at 9:35 am. Please note that all NCG01 project records may be accessed in this section of our Laserfiche Repository. It is important to check the permit folder for the most current information on any project (modifications, more recent rescission, etc.)
- Active NPDES Stormwater Permit List updated 1/1/2021
- Active State Stormwater Permit List updated 1/1/2021
Post-Construction Stormwater Map
This interactive map indicates whether development activities are subject to a post-construction stormwater program and, if so, which one. While we do our best to make the map as accurate as possible, this viewer is only a tool to help in making final determinations about your responsibilities for permit coverage. Please read the information below about using the results of this map viewer:
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