[1] It was dedicated in 1989, to celebrate the 100th anniversary of the Metropolitan Water Reclamation District of Greater Chicago, perhaps best known for its major achievement in reversing the flow of the Chicago River in 1900;[2] and in 1999, this system was named a "Civil Engineering Monument of the Millennium" by the American Society of Civil Engineers (ASCE).
They designed a fountain that includes a sculptural sun dial along the side of the river.
[4] The fountain was named after Nicholas J. Melas who was elected in 1962 to the district's Board of Commissioners.
Melas was re-elected five times, serving for thirty years -- the last eighteen as President of the Board.
[10] The waterfall and the water cannon both operate from 8:00am to 11:00pm every day in the warm months.