The Intelligent Water Systems Challenge is back for a second year to encourage participants to use innovation and data to help solve some of the most difficult issues facing water and wastewater utilities. The event, which will run from February 11 to September 23, will make general problem statements and example datasets available to participants and will use webinars to introduce participants to the datasets and underlying systems. Scenarios will focus on collection systems, wastewater treatment systems, drinking water treatment systems, source water/watershed and distribution networks. Teams with innovative solutions will be invited to present their results in person at WEFTEC 2019 in Chicago, IL for final judging. The winning teams will receive cash awards and the top team will receive $10,000 (USD).