John Rehring is a Vice President in the Denver, Colorado office of Camp, Dresser, & McKee, Inc., a global consulting and engineering firm. With 20 years of experience, Mr. Rehring has focused on developing long-range plans for water supply, treatment, and water reuse for states and communities throughout the southwestern U.S. He has directed all technical studies for the Oklahoma Comprehensive Water Plan for the Oklahoma Water Resources Board and the U.S. Army Corps of Engineers. His experience also includes Colorado's Statewide Water Supply Initiative, regional water supply planning for the Denver-area South Metro Water Supply Authority, and sustainable water supply planning for the city of Santa Fe, New Mexico. He is President-Elect of the Rocky Mountain Water Environment Association and Past President of the Colorado Section of the WateReuse Association.