James Christopher is Tetra Tech’s practice leader for water treatment and has more than four decades of experience in defining, evaluating, and implementing solutions to the most challenging water quality problems. His expertise includes water chemistry and water infrastructure design, with special emphasis in wastewater treatment; effluent reuse, utilization, and disposal; water resources; reverse osmosis and nanofiltration; granular activated carbon; pumping system analysis and station design; facility planning; and construction administration. James is a registered Professional Engineer in Florida, Georgia, and Texas.