Service Area Maps - Sanitary Sewer Systems
- Diamond & Sylvan Lake (PDF)
Serving parts of unincorporated southwest Fremont Township and northeast Ela Township, as well as portions of the Villages of Hawthorn Woods and Long Grove in the areas around Countryside Lake, Diamond Lake & Sylvan Lake. - Northeast (PDF)
Serving parts of unincorporated Antioch, Newport, and Warren Townships, as well as portions of the Villages of Antioch, Old Mill Creek, and Gurnee. - Northeast Central (PDF)
Serving parts of unincorporated Avon and Warren Townships, as well as portions of the Villages of Grayslake and Third Lake. - Northwest
Serving parts of unincorporated Antioch, Grant and Lake Villa Townships, as well as portions of the Village of Fox Lake. - South Central (PDF)
Serving parts of Libertyville and Vernon Townships, as well as the Village of Vernon Hills and portions of the Villages of Mundelein, Mettawa, Indian Creek, and Long Grove. - Southeast (PDF)
Serving parts of Ela, Vernon, and West Deerfield Townships, as well as, portions of the Villages of Buffalo Grove, Hawthorn Woods, Kildeer, Lake Zurich, Long Grove, Riverwoods, and Deerfield. - Southeast Central (PDF)
Serving parts of Libertyville Township, as well as portions of the Village of Green Oaks.