In 2011, the Malibu City Council approved an agreement with the Los Angeles Regional Water Quality Control Board to build centralized wastewater treatment facilities in the Civic Center area. The map above details the three phases. Areas in Phase 1, in yellow, must hook up to a treatment facility by 2015. Phase 2 areas, in pink, must connect to a treatment facility by 2019. Phase 3 areas, in purple, must connect to a facility by 2025. However, the construction of the Phase 3 facility is contingent on water quality studies.