John Rehring is a vice president and senior client services manager with Carollo Engineers in Broomfield, Colo. For 30 years, he has focused on water supply and reuse planning and implementation across the Southwest. In recent years, he has managed two direct potable reuse demonstration projects and the Denver One Water Plan.
The reliability of water supplies in the arid and semi-arid Mountain States is a growing concern for the public and the engineering community in the wake of persistent drought and a multiyear downward trend in Colorado River flow and storage. Robust snowpack in early 2023 brought a welcome reprieve, but one good year cannot overcome decades of drought.
