Plant water management has never been more important-especially in the U.S. Southwest, where water supplies are dwindling even as population and power consumption skyrocket. New plants in the region are required to manage water as plants elsewhere manage fuel-by making every gallon count. The Redhawk Power Station uses tertiary wastewater as its water feedstock and reclaims all liquid wastes with a zero liquid discharge system. Ten lessons learned, based on four years of experience, should be required reading for anyone operating or considering developing a ZLD system.