1. Public Notice of Advance Identification of Wetlands (ADID) Study Finalization
2. Public Notice of Exertion of Discretionary Authority over McHenry County ADID Wetlands
3. ADID Study, Final Report, December 1998
4. McHenry County Weblink

As part of the ADID process, a geographical information system (GIS) was developed by the Chicago Metropolitan Agency for Planning (CMAP).

By clicking on the township names below, you will be able to view a .pdf file using Acrobat Reader. Each map has a legend that lists aquatic resources by a number. The following resource categories were included in the ADID designation: High quality streams, High quality lakes, High quality habitat wetlands, and High functional value wetlands.

For more information on the McHenry County ADID Maps you may contact:

McHenry County Planning and Development Department in Woodstock - Alicia Law (815) 334-4520

McHenry County Conservation District in Ringwood - Steve Gulgren (815) 678-4431

U.S. Environmental Protection Agency in Chicago - Sue Elston (312) 886-6115