The Waukegan Harbor AOC is a man-made commercial harbor located in Lake County, Illinois about 40 miles north of Chicago on the western shore of Lake Michigan. The AOC encompasses the man-made inner harbor and approximately 390 acres of surrounding land. Land use within the AOC is a mix of industrial, commercial, municipal, and vacant land.
https://www.dnr.illinois.gov/cmp/Documents/Waukegan_AOC_factsheet.pdf