70 ILCS 2605/86
As of July 1, 1903 the corporate limits of the sanitary district of Chicago be, and the same 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, hereinafter described as follows, viz.:
FirstThe territory or tract of land bounded as follows. Beginning at the intersection of the county line between Lake and Cook counties, State of Illinois, with the west shore of Lake Michigan, running thence west along said county line to the northwest corner of Section three (3), Township forty-two (42) north, Range twelve (12), east of the third principal meridian; thence south to the southeast corner of Section thirty-three (33), Township forty-two (42) north, Range twelve (12), east of the third principal meridian; thence east to the northwest corner of Section twelve (12), Township forty-one (41) north, Range twelve (12), east of the third principal meridian; thence south to the northwest corner of Section twenty-five (25), in said town and range; thence east to the northeast corner of the west half (1/2) of the west half (1/2) of said Section twenty-five 25; thence south to the southeast corner of the west half (1/2) of the west half (1/2) of Section thirty-six (36) in said town and range; thence east to the northeast corner of the west half (1/2) of Section 1 (1), Township forty (40) north, Range twelve (12), east of the third principal meridian; thence south to the southeast corner of the west half (1/2) of Section thirteen (13) in said township and range; thence east to the southeast corner of Section thirteen (13); thence east, north, northwest and east along the present boundary line of said sanitary district of Chicago to the shore of Lake Michigan; thence northwesterly along the shore of Lake Michigan to the place of beginning.
SecondThe territory or tract of land bounded as follows, to-wit: Commencing at the northeast corner of Section three (3) in Township thirty-seven (37) north, Range thirteen (13), east of the third principal meridian; running thence south to the southwest corner of Section eleven (11), Township thirty-six (36) north, Range thirteen (13), east of the third principal meridian; thence east and south along the boundary lines of Section fourteen (14), in said Township thirty-six (36) to the southeast corner of said Section fourteen (14), thence east to the southeast corner of Section seventeen (17), in Township thirty-six (36) north, Range fifteen (15), east of the third principal meridian; thence north along the east boundary line of the State of Illinois to its intersection with the shore of Lake Michigan, thence along the shore of Lake Michigan to the south boundary line of the present sanitary district of Chicago; thence west along the present south boundary line of the said sanitary district of Chicago to the place of beginning.
70 ILCS 2605/86