Airport/Larkfield/Wikiup Sanitation Zone

What's New

About the District:

  • Began Operation:1983
  • Service area: 2,100 acres
  • Service recipients: 3,464 Equivalent Single-Family Dwelling
  • Treatment level: Tertiary
  • Design capacity: 900,000 gallons per day (average daily dry weather flow)
  • Discharge: All of the recycled water is used for irrigation.
  • Board of Directors:  The Water Agency's Board of Directors act as the District's Board.
  • NEW! Recycled Water Trucking Program




Billing/Financial Questions: Manuel Olvera, 707-521-6215 or

General Questions: Brad Sherwood, 707-547-1927 or