1967 aerial view of Point Loma Wastewater Treatment Plant, with Rosecrans National Cemetery in the background. In 1963, the City completed the Point Loma Wastewater Treatment Plant, Point Loma Ocean Outfall, and the Municipal Wastewater Collection System. The Point Loma plant remains the mainstay of the wastewater system, processing approximately 160 million gallons a day of wastewater generated by 2.2 million residents in a 450 square mile service area. The facility has a treatment capacity of 240 million gallons per day.