The Synagro Central Valley Compost facility processes municipal sewage (AKA biowaste solids, human feces) and greenwaste into compost, concentrates, and fertilizers to sell to nearby farms. According to their website, they process 99,999 tons* of material annually.

List of cities that provide sewage to this Synagro facility**

  • Alameda1
  • Albany1
  • Berkeley1
  • Castro Valley1
  • Concord1
  • Danville1
  • El Cerrito1
  • Fresno
  • Gilroy
  • Ingenium
  • Lafayette1
  • Madera
  • Martinez1
  • Moraga1
  • Mountain House
  • Oakland1
  • Orinda1
  • Palo Alto1
  • Pleasant Hill1
  • Pleasanton1
  • Richmond1
  • San Francisco
  • San Francisco Airport-Bio
  • San Jose
  • San Leandro1
  • San Lorenzo1
  • Sunnyvale
  • Walnut Creek1

1Part of EBMUD region

Synagro’s profile of this facility

Synagro products include:

List of crops that Synagro promotes their products for


  • Alfalfa
  • Corn
  • Cotton
  • Wheat


  • Citrus
  • Corn
  • Cotton
  • Fruits
  • Rice
  • Soybeans
  • Vegetables
  • Wheat

Promotional video in Spanish

*This number may be an artifact of limits in their software.
**This site does not list East Bay Area locations, though according to Synagro’s Facebook Page and the EBMUD website this facility handles their biowaste solids.

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