Water Sources
The City of Ventura currently relies on 100% local water sources including surface and groundwater from Lake Casitas, Ventura River, three groundwater basins, and recycled water.
The figure below depicts the normal (non-drought) water supply from these sources.
Source: Table 4-1 of the 2019 Comprehensive Water Resources Report (figure to be updated annually)
For an annual look at Ventura’s water supply and demand status, see the Comprehensive Water Resources Reports (CWRRs).Council approved the first CWRR in June 2013, which was prepared to provide a short-term balance of water supply and demand, a predictable use of data to serve pending and projected development projects, and to provide recommendations for long term water supply and demand policy.
For long-term resource planning, see the Urban Water Management Plans (UWMPs). The UWMP addresses historic, current, and projected water demands, supplies and conservation programs.
The UWMP is published every five years and is consistent with the Water Conservation Act of 2009 (Water Code sections 10608.12 to 10608.64) and the Urban Water Management Planning Act (Water Code sections 10610 to 10656).
Lake Casitas
Casitas Municipal Water District serves customers in the Casitas district. This area includes Ventura’s westside and midtown, generally west of Mills Road. Ventura Water customers who live in the Casitas District pay an assessment annually through their property taxes. For more information, visit the Casitas' website at https://www.casitaswater.org/.
Ventura River
Ventura Water operates groundwater wells and a subsurface diversion that draw water from the Ventura River. Please see the Ventura River Watershed Council (http://venturawatershed.org/) and the Groundwater Basins section for more information.
Groundwater Basins
In addition to wells located on the Ventura River, Ventura Water operates groundwater wells in three groundwater basins: the Oxnard Plain Basin, Mound Basin, and Santa Paula Basin. Our production is managed by existing agencies/agreements and future groundwater supply may be impacted by the Sustainable Groundwater Management Act (SGMA). SGMA was passed by the State in 2014 to improve management of groundwater resources in California. The legislation requires that groundwater sustainability agencies (GSAs) are established for groundwater basins ranked as medium- or high- priority, indicating that the basins are at risk of overdraft and/or a decline in water quality. Once GSAs are formed, Groundwater Sustainability Plans (GSPs) must be adopted and the groundwater basin must achieve sustainability by 2042.
The Fox Canyon Groundwater Management Agency
is named as the GSA for the Oxnard Plain Basin (ranked as high-priority).
The Mound Basin GSA
(ranked medium-priority) meets the third Tuesday of each month. Additional information and meeting materials are available at moundbasingsa.org.
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The Santa Paula Basin
is adjudicated and exempt from the GSA process.
The Upper Ventura River Basin GSA
(ranked medium-priority) meets the second Thursday of each month. For more information visit uvrgroundwater.org.
Source: 2015 Urban Water Management Plan
Recycled Water
Ventura Water provides recycled water from the Ventura Water Reclamation Facility for golf courses, parks and similar landscape areas. Recycled water is also available to commercial and residential customers through the Mobile Reuse Program.