The Process and Water Quality Specialists

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Contact Information:

Pasadena Office


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Fred Gerringer, D.Env., P.E., BCEE

Fredrick W. Gerringer has a B.S. in Civil and Environmental Engineering from University of California at Berkeley and a M.S. in Civil and Environmental Engineering and a D.Env. in Environmental Science and Engineering from UCLA. Dr. Gerringer is a registered Civil Engineer in the State of California and a Board Certified Environmental Engineer (BCEE) in the Practice of Water Supply and Wastewater Engineering. Dr. Gerringer has more than 11 years of experience and has authored seven publications,  one book chapter, and more than 30 conference proceedings, presentations, and posters. His professional career has focused on membrane processes in water, seawater, and water reuse applications. He also has extensive experience conducting pilot-scale studies of unit processes such as conventional water treatment (coagulation, sedimentation, and media filtration), ozonation, biofiltration, microfiltration (MF), and reverse osmosis (RO). Recent projects have included pilot testing the ozonation of a non-nitrified secondary effluent before MF, preliminary design of a 4000-lb/day ozone system for West Basin’s Edward C. Little Water Recycling Facility, and bench-, pilot- and demonstration-scale testing of preformed chloramines for seawater RO desalination.

Dr. Gerringer is a member of the American Water Works Association (AWWA), the American Society of Civil Engineers (ASCE), Water Environment Federation (WEF) and the International Desalination Association (IDA). He is also involved with AWWA Organic Contaminant Research Committee.