As of July 13, 1955, the corporate limits of the Sanitary District of Chicago are hereby extended so as to include within the same the territory and tracts of land situated in the County of Cook and State of Illinois, hereinafter described as follows:
     All of the South East One-Quarter (1/4) of Section 10 lying South of the center line of Joliet Road (also known as Illinois State Highway #66); all of Section 15; the East One-Half (1/2) of Section 21; all of Section 22; the North One-Half (1/2) of Section 27, except that part lying South and East of Joliet and Chicago Railroad of the East One-Half (1/2) of the North East Fractional Quarter of said Section 27, and the North East One-Quarter (1/4) of Section 28; all of the above in Town 38 North and Range 12 East of the Third Principal Meridian.