Article 2 of the WMO allows local municipalities whose corporate boundary lies within both Cook County and an adjacent collar county to adopt and enforce the ordinance of the adjacent county in lieu of the WMO. The below listed municipalities have entered into an Intergovernmental Agreement with the District and are following the indicated ordinance. A WMO permit is not required from the District for these municipalities, unless the project includes activities specified in Section 201.2 of the WMO.

The stormwater provisions of one of the following ordinances shall apply to the Cook County portions of each listed municipality, as indicated:

• DuPage County Countywide Stormwater and Flood Plain Ordinance (DCCSFPO)
• Kane County Stormwater Management Ordinance KSCMO)
• Lake County Watershed Development Ordinance (LCWDO)
• McHenry County Stormwater Management Ordinance (MHCSMO)
• Will County Stormwater Management Ordinance (WCSMO)

Multi-County Municipalities:

	Village of Barrington – LCWDO
	Village of Barrington Hills – LCWDO
	Village of Bartlett – DCCSFPO
	Village of Bensenville – DCCSFPO
	Village of Deerfield – LCWDO
	Village of Deer Park – LCWDO
	City of Elgin – KCSMO
	Village of Hinsdale – DCCSFPO
	Village of Oak Brook – DCCSFPO
	Village of Park Forest – WCSMO
	Village of Roselle – DCCSFPO