Early in his administration, Mayor Richard J. Daley authorized massive development along the riverfront, which necessitated cleaning up the sewage-choked water below. To find out which buildings were sending waste into the river, city crews began putting a special green dye into the sewage system to trace the origin of discharged water—anywhere the river turned green, someone was dumping waste illegally.
(link below)
http://www.chicagomag.com/Chicago-Magazine/March-2014/Ask-Chicago-How-Did-the-Tradition-of-Dyeing-the-Chicago-River-Green-Start/?utm_source=Social%20Media&utm_medium=Twitter&utm_campaign=Chimag%20Green%20River%20031414
Friday, March 14, 2014
WHY DOES CHICAGO DYE THE RIVER GREEN FOR ST.PATRICK'S DAY?
Early in his administration, Mayor Richard J. Daley authorized massive development along the riverfront, which necessitated cleaning up the sewage-choked water below. To find out which buildings were sending waste into the river, city crews began putting a special green dye into the sewage system to trace the origin of discharged water—anywhere the river turned green, someone was dumping waste illegally.
(link below)
http://www.chicagomag.com/Chicago-Magazine/March-2014/Ask-Chicago-How-Did-the-Tradition-of-Dyeing-the-Chicago-River-Green-Start/?utm_source=Social%20Media&utm_medium=Twitter&utm_campaign=Chimag%20Green%20River%20031414
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