Paul is working at the State of California Regional Water Quality Control Board, Los Angeles Region since 1989 after his MS degree in Geology from the University of Southern California. His regulatory work experience involves solid waste disposal facilities construction, closure and environmental programs, and environmental enforcement for oil refineries. Paul has been involved with the Solid Waste Assessment Test Program management, RCRA EI Program with the US EPA and Los Angeles LNAPL Project with the Western States Petroleum Association.