WATER SECURITY OVERVIEW
Even with our drought and current lake level, Casitas has water resources for the future. The District is actively engaged in managing existing local water resources and has various water security strategies in place.
Learn more about our comprehensive Water Security Program.
Casitas Water Security Update
Our latest video update includes status of our various water security projects
Casitas MWD gets water from groundwater supplies in the Ojai Valley as well as water stored in Lake Casitas
Updated: June 11, 2019
*Most recent Ojai Basin Pumping: 4,514.98 AF (per OBGMA)
AFY = Acre Feet/Year. 1 acre-foot is 325,851 Gallons
Casitas Municipal Water District manages water supply primarily through the Water Efficiency and Allocation Program, or WEAP.
The Program ensures allocations of water and conservation targets are in line with drought conditions.
CMWD has been pursuing various capital improvements that will bring access to more supply and capacity district-wide.
FREQUENTLY ASKED QUESTIONS
Lake Casitas currently contains about 79,000 acre feet of water, and there are approximately 60,000 acre feet of water in the Ojai Groundwater Basin. The District’s current total water supply is approximately 139,000 acre feet. The current demand for this water is approximately 14,100 acre feet per year, plus evaporation of about 4,740 AFY for a total of 18,840 AFY.
It is important to note that even during historical long-term droughts, there were large rain events that re-supplied the lake. Lake Casitas is a large reservoir designed to last through long droughts, and with significant water conservation measures and projects to augment our water supplies, it will be well positioned to provide water security for Western Ventura County.
In accordance with state law and regulations, Casitas has always planned for the best management of its water resources to ensure water security for our customers. Casitas Municipal Water District maintains a long-term adequate water supply by making sure we use water at a pace that could be sustained in a 20-year drought cycle. Part of this plan is the Water Efficiency and Allocation Program (WEAP), which was most recently updated in May 2018.
Western Ventura County has remained vigilant in protecting and utilizing local water supplies. Each of the previous droughts have resulted in the local efforts to seek additional water supplies, such as Matilija Dam and the Ventura River Project (Lake Casitas). The current extended drought has again raised the question of whether local water supplies are enough to support our local water needs. The Casitas Municipal Water District is actively pursuing additional water supplies such as untapped groundwater and the importation of State Water in cooperation with the City of Ventura and the Calleguas Municipal Water District.
In Stage 3 drought conditions, the water restrictions for residential customers are:
Hoses must be equipped with an automatic shut-off nozzle when in use;
Irrigation with potable water is prohibited between the hours of 10:00 a.m. and 6:00 p.m. for automatic systems for all residential customers;
Irrigation with potable water that causes runoff onto adjacent property, non-irrigated areas, private and public walkways, roadways, parking lots, or parking structures is prohibited; and
Irrigation during and within 48 hours after measurable rainfall is prohibited.
Yes, at Stage 3 drought conditions, our WEAP target is to reduce our annual normal water demand by 30% with water conservation measures. This target is reflected in every customer’s assigned water allocation, which can be updated depending on the stage of drought we are in. If customers adhere to their assigned allocations, our current water use reduction target will be met.
Any water saved now can help prevent more severe actions needed in the future as drought conditions continue. Casitas urges all customers (residential, business, commercial, etc.) to evaluate their water use and find further opportunities to conserve. The District provides water surveys free of charge to all our customers. Please contact Michael Flood, Assistant General Manager, at 805-649-2251 or email@example.com for more information for a free water survey.
Water conservation is the most important, fastest and cost-effective way to ensure our water supply remains sustainable. As we work to reduce our demand on the lake as much as possible, Casitas Municipal Water District is actively analyzing alternative water supply options to become more resilient in long-term droughts. In evaluating alternative options, the District must balance the water project’s additional amount of water and technical feasibility with the increased cost to all of our customers for the project. The options we are evaluating include two deep well projects, optimizing the Ojai water system and its wells, and obtaining a shared connection to the State Water Project in cooperation with the City of Ventura and the Calleguas Municipal Water District.
New water supplies, along with continued water conservation efforts, will create greater local water resilience in western Ventura County.