Almost 60 percent of the City's drinking water supply comes from local groundwater in Long Beach. The local groundwater originates from the San Gabriel mountains to the north, travelling down the San Gabriel River watershed and slowly making its way underground to our City. High-powered pumps extract groundwater from Department-owned wells, most of which exceed 1,000 feet in depth. The Department currently has 28 active groundwater wells.
The remainder of the City's drinking water supply is imported water purchased from the Metropolitan Water District of Southern California (MWD). MWD water comes from the Colorado River through the District's aqueduct system and from the Sacramento River/San Joaquin Delta via the State Water Project. It is then treated in five regional MWD treatment plants.
To further reduce the need for imported wtaer, the Department also utilzes tertiary treated reclaimed water from the Sanitation Districts of Los Angeles County Long Beach Reclamation Plant. Reclaimed water is supplied to many of the city's parks, golf courses and other industrial uses.
Water conservation is also very important, as it allows the Department to purchase less imported water, improving reliability and keeping water rates low.