70 ILCS 2605/172
As of July 13, 1955, the corporate limits of the Sanitary District of Chicago are hereby extended so as to embrace and include within the same the territory and tracts of land situated in the County of Cook and State of Illinois, hereafter described as follows:
The South 3/4 of the Southwest 1/4 of the Southwest 1/4 of Section 12; all of Section 13 (except the East 1/2 of the Northeast 1/4); that part of the East 1/2 of the Northeast 1/4 and of the Northeast 1/4 of the Southeast 1/4 of Section 14 lying South of Baldwin Road; the North 1/2 of the Northeast 1/4 and the South 1/2 of the Northwest 1/4 and the Northeast Quarter of the Northwest Quarter of Section 24; also the Northwest Quarter of the Southwest Quarter of said Section 24; all in Township 42 North, Range 10, East of the Third Principal Meridian, in Cook County, Illinois.
70 ILCS 2605/172