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The County of DuPage
Wheaton, Illinois

DuPage County Countywide Stormwater & Floodplain Ordinance Update


DuPage County Stormwater Management has updated its Countywide Stormwater & Floodplain Ordinance (Ordinance). The updated Ordinance can be downloaded via the links below. The proposed revision to the Ordinance is the complete removal of Section 15-81.B.5.  This section is proposed to be deleted so that (1) The Ordinance is compliant with FEMA requirements that require residential structures within the floodplain to have the lowest floor (including the basement) elevated to or above the base flood elevation, and (2) The Ordinance is compliant with a newly implemented Community Rating System (CRS) 1-foot freeboard pre-requisite for Class 8 communities.


Public Comment

Comments on the proposed changes must be submitted in writing by the close of business on August 22, 2022, to Michael Dirkse, Sr. Civil Engineer with DuPage County Stormwater Management, by mail to 421 North County Farm Road, Wheaton, IL 60187 or by email to