All properties in Willowbrook are subject to the DuPage County Stormwater and Flood Plain Ordinance. Willowbrook is a full-waiver community and all stormwater management proposals are reviewed by the Village Engineer and permitted by the Village.

A copy of the Village of Willowbrook's Annual Facility Inspection Report (AFIR) which is submitted by DuPage County to the Illinois Environmental Protection Agency (IEPA) is available for download below.

If you have any questions, please call Village Hall at (630) 323-8215.