70 ILCS 2605/120
As of August 2, 1949, 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 Village of Northbrook, County of Cook and State of Illinois, hereinafter described as follows:
Beginning at the Northeast (NE) Corner of Section nine (9), Township forty-two (42) North, Range twelve (12), East of the Third Principal Meridian; thence West along the North line of said Section nine (9) to the Northwest (NW) Corner thereof; thence South along the West line of said Section nine (9) to its intersection with the South line of Lot one (1) in Jacob Kiest's Division of Lands in the West three-fifths (W3/5) of the Northwest one-quarter (NW1/4) of said Section nine (9); thence East along the South line of said Lot one (1) of Jacob Kiest's Division of Lands to its intersection with the West line of the East one-half (E1/2) of the West one-half (W1/2) of said Section nine (9); thence South along the West line of the East one-half (E1/2) of the West one-half (W1/2) of said Section nine (9) to the South line of said Section 9; thence East along the South line of said Section nine (9) to its intersection with the West line of the Northeast one-quarter (NE1/4) of Lot three (3) in School Trustees Subdivision of Section sixteen (16), Township forty-two (42) North, Range twelve (12), East of the Third Principal Meridian; thence South along the West line of the Northeast one-quarter (NE1/4) of said Lot three (3) to the South line of the Northeast one-quarter (NE1/4) of said Lot three (3); thence East along the South line of the Northeast one-quarter (NE1/4) of said Lot three (3) to its intersection with the North and South center line of said Section Sixteen (16); thence South along the North and South center line of said Section sixteen (16) to a point in the East and West center line of said Section sixteen (16); thence East along the East and West center line of said Section sixteen (16) to a point six hundred sixty and thirty hundredths (660.30) feet West of the East line of said Section Sixteen (16); thence Northerly from said point, a distance of one thousand five hundred fifty-two and ninety-two hundredths (1552.92) feet to a point being six hundred sixty and fourteen hundredths (660.14) feet West of the East line of said Section sixteen (16); thence East along a line parallel to the said East and West center line of said Section Sixteen (16) to the East line of said Section sixteen (16); thence North along the East lines of said Sections Sixteen (16) and Nine (9) to the Place of Beginning.
70 ILCS 2605/120