As of July 1, 1953, the corporate limits of the Sanitary District of Chicago are extended so as to include within the same the territory and tracts of land situated in the County of Cook and the State of Illinois hereinafter described as follows:
Lots 15 and 16 in School Trustees subdivision of Section 16, Township 42 North, Range 12, East of the Third Principal Meridian, Cook County, Illinois.
70 ILCS 2605/148