The February 1st WRRC 2019 Conference, Arizona Runs on Water: Scarcity, Challenges, and Community-based Solutions, will explore how Arizona's regions, cities and towns, tribes, and rural areas are working to meet their future water needs. In order to highlight as many perspectives as possible, we have added a new participatory element to this year's event. We are soliciting case studies that describe a community water challenge/solution, including the barriers or opportunities that have hindered or helped the community work toward a solution. You can submit your case-study through a simple online form and you don't have to attend the conference to contribute. All the submittals will be included in a compendium of case studies as a follow-up to the conference; however, several submitting authors will also have the opportunity to present a three-minute lightning talk during the conference lunch session. Lunch speakers must be registered for the conference, which will take place on February 1, 2019 (8 am - 2 pm), at the Black Canyon Conference Center, 9440 N. 25th Ave., Phoenix, Arizona.