Triunfo Sanitation District, in partnership with Las Virgenes Municipal Water District, owns and operates the Tapia Water Reclamation Facility in Malibu Canyon.


Triunfo Sanitation District serves more than 30,000 residents of east Ventura County, including Oak Park, Lake Sherwood, Bell Canyon, and the Westlake Village and North Ranch portions of Thousand Oaks. Services include wastewater collection and treatment, and supplying potable and recycled water in selected areas. The wastewater is treated in partnership with Las Virgenes Municipal Water District.

Triunfo Sanitation District provides collection and treatment of waste- water for 12,300 residential and commercial sewer connections.

Owned and operated by Triunfo Sanitation District, Oak Park Water Service provides quality water (potable and recycled) to the community of Oak Park.