Synopsis As Introduced Amends the Metropolitan Water Reclamation District Act. Provides that the board of commissioners of the Water Reclamation District of Greater Chicago shall: on or before July 1, 2021, divide the Water Reclamation District of Greater Chicago into 9 commissioner districts and assign the commissioner districts to reflect the results of the most recent federal decennial census. Provides that in the year following each federal decennial census, the board of commissioners shall redistrict the commissioner districts to reflect the results of the most recent census. Provides that the commissioner districts shall be compact, contiguous, and substantially equal in population to each other district. Provides that one commissioner shall be elected from each commissioner district for a term of 6 years and that the commissioner shall be a resident of the commissioner district from which he or she was elected. Provides that if the corporate limits of the Water Reclamation District of Greater Chicago expands between redistrictings, the board of commissioners shall determine which commissioner district or districts the expanded territory will join until the next redistricting. Provides that the terms of all commissioners serving at the time of the 2022 general election shall continue until the first Tuesday after the first Monday in the month following the 2022 general election or until the 9 new commissioners are elected and qualified, whichever is later. Makes conforming changes.