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providing potable water, recycled water, wastewater services and biosolids composting to the cities of Agoura Hills, Calabasas, Hidden Hills, Westlake Village and neighboring unincorporated areas of Los Angeles County. Employees and leadership at Las Virgenes Municipal Water District daily enact their commitment to assure the highest quality products and services in a cost-effective, reliable and environmentally sensitive manner. Taking Nature’s lead, Las Virgenes Municipal Water District (LVMWD) works to make the most of water resources by bringing water full circle. Wastewater is treated to be beneficially used as recycled water and biosolids compost. 
The area served by LVMWD has no local source of drinking water; all supplies must be imported from Northern California. LVMWD purchases its water from Metropolitan Water District of Southern California, one of the world—s largest water wholesalers. The water is transported more than 400 miles through the California Aqueduct and enters the LVMWD service area in the eastern-most reaches of Calabasas. Water is then carried throughout the district in a system of more than 345 miles of mainline water pipe. Reliable water service in our mountainous area is challenging, and is provided with 25 storage tanks and 25 pump stations. About 1/4 of the potable water served to LVMWD customers is reused in our community to irrigate highway greenery, golf courses, school grounds and other public and commercial landscapes. This recycled water, produced through extensive treatment of wastewater, is delivered through 63 miles of water line, 3 storage tanks, 3 reservoirs and 4 pumping stations. LVMWD also provides wastewater (sewer) services to most residents throughout the area, with a system of 56 miles of trunk sewer lines (from 8-inches to 48-inches in diameter) and 2 lift stations which pump wastewater over the mountains to the treatment facility. The final step in LVMWD’s cycle of water reuse is biosolids composting. Solids remaining from the water reclamation process are treated to become rich soil amendment. The same product that is sold at garden stores, this high-grade landscape product is distributed free to customers for home use, each Saturday morning. |
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Located in the hills just south of Westlake Lake, the reservoir can hold a six-month supply of treated drinking water for all district customers. This equals nearly 9,500 acre-feet. (An acre-foot equals 325,900 gallons, about enough water to serve two families in and around their homes for one year.) The reservoir is a ”backup“ water supply for our area, created to assure reliable drinking water delivery to LVMWD customers in times of drought, in the event of earthquakes, and in other emergencies. It also enables the district to purchase water during winter months, to be served during the summer to help meet peak seasonal demands throughout the system. Westlake Filtration Plant filters and disinfects the water from the reservoir before it is served to customers. It can process as much as 15 million gallons of drinking water per day. | ||||||
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This award-winning facility uses state-of-the-art technology to treat wastewater and produce high quality recycled water for use on public and commercial landscaping. Tapia can process up to 16 million gallons per day of wastewater, but currently averages 9 million. An on-site, State-certified water quality laboratory conducts ongoing testing, to assure that all potable and recycled water served by LVMWD meets stringent State and Federal health and safety standards. | ||||||
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Rancho embodies the district‘s commitment to reuse. Here, biosolids removed from wastewater at Tapia are processed into rich garden compost. Composting at Rancho diverts from landfills enough material to fill a football field 1 story high each year. A small percentage of biosolids is injected into Rancho‘s 91 acres. The Tapia Water Reclamation and Rancho Las Virgenes Composting Facilities are both operated under a joint powers authority with Triunfo Sanitation District. | ||||||
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Conservation programs help LVMWD customers to save water - including rebates for ultra-low-flush toilets and high efficiency clothes washers, landscaping workshops, low-flow shower heads, brochures, and daily web-page publication of plant irrigation needs. The district‘s award-winning educational program includes facility tours; in-class presentations; water awareness curricula, exhibits and demonstrations; water-themed in-school plays; and books placed in local libraries. Customer service is provided 24 hours a day for emergencies. | ||||||
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