Learn about the latest version of the Delaware Urban Runoff Management Model from the DNREC Sediment and Stormwater Program.

The Sediment and Stormwater Program is working on an update (Version 2.6) of the Delaware Urban Runoff Management Model, known as DURMM. This hour-long webinar will provide an overview of DURMMv2.6 and regulatory guidance related to the design of extended detention stormwater facilities.

There will be time for questions and comments at the end of the session. Feedback will be accepted through June 1, 2026, at DNREC.Stormwater@delaware.gov.