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Triunfo Water and Sanitation District operates 120 miles of wastewater collection pipeline. Four pump stations and a half-mile of pressure mains feed into the Tapia Wastewater Reclamation Facility (jointly owned by Triunfo and Las Virgenes Municipal Water District). Tapia has a treatment capacity of 16 million gallons per day. Triunfo Water & Sanitation District maintains 12,300 sewer service connections, with 85% residential, 10% retail, and 5% commercial.
Fees for sewer service are collected through Ventura County property tax assessments.
To apply for new sewer connections or to make sewer-related building improvements, download the Triunfo Sewer Improvement Worksheet Form
Through its partnership with Las Virgenes Municipal Water District, Triunfo Water & Sanitation District provides wastewater collection and treatment services to more than 30,000 people.
Wastewater treatment includes screening, grit removal, primary and secondary clarification, aeration, tertiary filtration, disinfection, and de-chlorination.
Triunfo treats its customers’ wastewater at the Tapia Water Reclamation Facility in Calabasas through its partnership with Las Virgenes Municipal Water District. Using a tertiary (three-stage) process, wastewater treatment at Tapia duplicates and accelerates physical and biological processes found in nature.
Tapia has a capacity to process up to 16 million gallons of wastewater per day (MGD) and currently averages about 9.5 MGD. Advanced filtration and disinfection ensure that the treated water meets stringent water reuse standards and is environmentally safe for wildlife and vegetation.
Depending on the time of year, treated water from the Tapia facility is used for any or all of three purposes:
Click here to learn about the innovative Pure Water Project that will use water from Tapia to increase future supplies of high-quality drinking water for thousands of customers.
To convey wastewater through miles of pipeline to the Tapia Water Reclamation Facility, a series of strategically placed lift stations is required. Using submersible pumps, these facilities “lift” (pump) sewage higher to allow it to continue its downhill journey through gravity-flow pipelines to the treatment plant.
Free tours of the Tapia Water Reclamation Facility are offered twice a year by the Triunfo/Las Virgenes Joint Powers Authority
Also part of the Joint Powers Authority is the Rancho Las Virgenes Composting Facility. For more than 20 years, this facility has converted wastewater biosolids into a useful, nutrient-rich soil amendment. This compost is available to the public free of charge through the Community Compost Program. See hours and location below for more details.
Our Community Compost has earned the coveted “Class A, Exceptional Quality” rating from the U.S. Environmental Protection Agency. This rating means that our compost has “unrestricted use” for flower, lawn, or vegetable gardens. Its excellent organic soil conditioning properties aid water retention in light soils and it helps to break up and aerate heavier soils, so less watering is needed.
Our Community Compost contains both readily available and long-term, slow-release nutrients for greener plants. A blend of processed biosolids and wood chips, the Community Compost is comparable to garden amendments sold at some local stores and it’s the choice of many experienced gardeners and professional landscapers.
This compost is available to the public free of charge by reservation only through the Community Compost Program:
In adhering to current safety and social distancing guidelines due to COVID-19, all customers will be required to observe the following conditions:
Bulk Loading Program: For a limited time, we are offering free bulk-loading of compost Monday through Friday from 7:30 a.m. to 1:30 p.m. Customers wishing to take advantage of this rare program expansion can get detailed information about scheduling a pick-up here. Please note that the entrance to the composting facility will not be open for public access during the week without first contacting the Customer Service Department (818-251-2108).