About

Triunfo Water & Sanitation District provides sewage collection services and wastewater treatment, supplies potable water, and treats and sells recycled water in the southeastern portion of Ventura County, including the communities of Oak Park, Lake Sherwood, Bell Canyon, and the Westlake Village and North Ranch portions of Thousand Oaks. The district covers approximately 50 square miles and serves a population of about 33,000. Visit www.triunfowsd.com.