Local Water

Local water supplies are harnessed in increasingly sophisticated ways.

The Los Angeles County Flood Control District captures over 95% of all precipitation that falls within the San Gabriel River Watershed to recharge the local groundwater basins.  The Flood Control District encompasses more than 3,000 square miles, 85 cities, and approximately 2.1 million land parcels. It includes the vast majority of drainage infrastructure within incorporated and unincorporated areas in every watershed, including 500 miles of open channel, 2,800 miles of the underground storm drain, and an estimated 120,000 catch basins.

Besides local groundwater that comes courtesy of snowmelt in the San Gabriel Mountains and rain that flows through the San Gabriel River, water recycling and watershed protection are key components helping our groundwater basins meet local demands.