Maps & Permit Data
Active Stormwater Permits Map
This interactive map indicates the locations of current stormwater permitees. Be sure to check the legend to see which color dots represent which kind of permits. Note: Construction Stormwater Permits are not on this map.
How to Find Permit Data
The following are provided for informational purposes only and are updated periodically. Check the permit folder for current information on a project (modifications, rescissions, etc.)
- NPDES Construction Permit List as of 3/31/2024 (prior to 4/1 renewal)
Permit records are available in the Construction Stormwater COCs folder of the Laserfiche repository. - NPDES Industrial Active Permit List as of 4/2/2024
Permit records are available in the General Permits and Individual Permits folders of the Laserfiche repository. - Post-Construction Active Permit List as of 4/2/2024
Some of the permit records are available in the SW Permits folder of the Laserfiche repository. The estimated completion date for scanning Post-Construction permit files is July 2024.
Post-Construction Stormwater Map
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.
Please note that if that there are a number of areas currently indicated as "No Program Required" that are subject to special watershed strategies that require stormwater permit coverage. You can read about this at the Special Designations Descriptions web page.
For assistance with the interactive map, please contact Bethany Georgoulias.