The City's Water Branch has one of the largest and most complex water storage, treatment, and delivery systems in the nation. Nine reservoirs hold the raw water before it is moved to one of three plants for treatment. It is then pumped through hundreds of miles of pipeline to thirsty San Diegans.
Since San Diego is a semi-arid region, 85 to 90 percent of the water used here is imported. Therefore, the Water Branch is committed to conservation and finding alternative water supplies such as recycled water and groundwater.
The City's Wastewater Branch is responsible for the collection, treatment and safe disposal of wastewater for the City of San Diego. The Branch operates the Point Loma Sewage Treatment Plant.
It also provides regional wastewater treatment and disposal services for 15 other cities and special districts within a 450 square mile area stretching from Del Mar to the north, Alpine and Lakeside to the east, and to San Ysidro to the south.