WEF 2015 Stormwater Congress Calendar When: September 26, 2015 – September 30, 2015 all-day 2015-09-26T00:00:00-05:00 2015-10-01T00:00:00-05:00 Where: McCormick Place 2301 South Doctor Martin Luther King Junior Drive Chicago, IL 60616 USA Contact: Water Environment Federation Event website