Collection Systems 2015: Collection Systems Taking Center Stage – Seize the Opportunity Calendar When: April 19, 2015 – April 22, 2015 all-day 2015-04-19T00:00:00-04:00 2015-04-23T00:00:00-04:00 Where: Duke Energy Convention Center 525 Elm Street Cincinnati, OH 45202 USA Contact: Water Environment Federation Event website