Recycled Water


Recycled Water
Central San has been producing recycled water since the 1970s.

Central San provides landscape irrigation water that meets all the requirements of the State Water Resources Control Board’s Division of Drinking Water and the San Francisco Regional Water Quality Control Board for unrestricted landscape irrigation. Approved uses include irrigation at schools, parks, playgrounds, median strips and playing fields, as well as dust control and industrial process uses.

Recycling water means less water is diverted from the Delta environment. Recycled water is a valuable resource, especially during drought years when water for landscape irrigation is less available because of water rationing.

Central San will continue to collaborate with local water purveyors to identify cost-effective landscape irrigation and industrial recycled water projects.  Additionally, CCCSD is exploring options to provide recycled water for landscape irrigation at the future Concord Naval Weapons Station development and industrial recycled water for cooling water purposes to the local petroleum refineries. 

Water Recycling Brochure

Customers that use recycled water for landscape irrigation:

Central San began delivering recycled water to commercial and institutional sites through a network of distribution pipelines in 1998.  The following businesses, agencies and schools always have green lawns, because they use Central San’s recycled water, which is not subject to drought restrictions:

  • Buchanan Fields Golf Course
  • Chevron Office Park, Concord
  • City of Pleasant Hill
    • Pleasant Hill Corp Yard
    • Pleasant Hill Police Department
    • Golf Club Road medians
    • Contra Costa Boulevard medians (by Lamps Plus)
    • Chilpancingo Parkway medians (by McDonalds)
    • Taylor Boulevard/Civic Drive medians
  • Contra Costa Country Club Golf Course
  • Contra Costa County
    • Martinez Animal Services
    • Martinez Corp Yard
  • Diablo Valley College
  • Mt. Diablo School District
    • College Park High School
    • Valley View Middle School
    • Sequoia Elementary & Middle Schools
    • Pleasant Hill Middle School
  • Pleasant Hill Recreation & Park District
    • Chilpancingo Park
    • Frank Salfingere Park
    • Pleasant Hill Community Center
    • Pleasant Hill Park
    • Pleasant Oaks Park 
  • Stubbs Road triplexes (on north side of DVC’s campus)

Residential Recycled Water Fill Station

Central San is offering its residential customers free recycled water. Recycled water can be used to hand-water lawns, gardens and landscaping. 

Recycled water should not be consumed or allowed to run off into storm drains.

Eligible communities include Alamo, Blackhawk, Clayton, Concord, Clyde, Danville, Lafayette, Martinez, Moraga, Orinda, Pacheco, Pleasant Hill, San Ramon, Walnut Creek, and Central County unincorporated areas within the Central Contra Costa Sanitary District service area.


Recycled Water Truck Fill Program

Central San is pleased to offer recycled water to licensed contractors for construction uses to help conserve drinking water use in central Contra Costa County. There are now two ways to participate: our NEW Automated Commercial Fill Station or you can obtain a portable recycled water meter for use on one of Cental San’s three recycled water hydrants.