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Welcome

Triunfo Sanitation District serves approximately 33,000 residents of east Ventura County, including Oak Park, Lake Sherwood, Bell Canyon, and the Westlake Village and North Ranch portions of Thousand Oaks.

 

Oak Park Water Service customers have a new way to track their water usage. Click here to learn about our new Customer Portal.

Oak Park Water


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.