Water Supply
Water Supply
EMWD’s potable (drinking) water supply comes from:
Imported Supplies from The Metropolitan Water District of Southern California through its Colorado River Aqueduct and its connections to the State Water Project.
Local Supplies from groundwater management and desalination efforts.
Imported Water
Approximately 75% of EMWD’s potable (drinking) water demand is supplied by imported water from The Metropolitan Water District of Southern California through its Colorado River Aqueduct and its connections to the State Water Project.
Groundwater
Approximately 25% of EMWD’s potable (drinking) water demand is supplied by EMWD groundwater wells. The majority of the groundwater produced by EMWD comes from its wells in the Hemet and San Jacinto area. Some of these wells have limited production as a result of the Fruitvale Judgment and Decree. EMWD also has wells in the Moreno Valley, Perris Valley and Murrieta areas.
Sustainable Groundwater Management Act
The objective of SGMA is sustainable groundwater management in a manner that prevents significant and unreasonable impacts to groundwater basins in California. Under SGMA, each high and medium priority basin, as identified by the California Department of Water Resources (DWR), is required to have a Groundwater Sustainability Agency (GSA) that will be responsible for groundwater management and development of a Groundwater Sustainability Plan (GSP). EMWD Board of Directors is the GSA for the West San Jacinto Groundwater Basin and is responsible for development and implementation of a GSP.
Attn: Rachel Gray
Water Resources Planning Manager
P.O. Box 8300
Perris, CA 92572-8300
- Resolution 2016-135: Formation of the West San Jacinto Groundwater GSA
- Click here to view a Google Earth map of the GSA area
- Board Letter: Approve & Authorize West San Jacinto & Southwest San Timoteo Groundwater Basins Boundary Modifications
- Resolution 2018-082: Initiating A Basin Boundary Modification Request For The San Jacinto Basin
- Sustainable Groundwater Management Act 2019 Basin Prioritization
- Board Letter: Formation of the West San Jacinto Groundwater Sustainability Agency
- Resolution 2016-034: Initiating A Basin Boundary Modification Request_San Jacinto Groundwater Basin 2016
- 2016 Basin Boundary Modification Initial Notification
- 2018 Basin Boundary Modification Initial Notification
- GSP Development Initial Notification
- Notices of Public Hearing: Formation of West San Jacinto GSA
- Meeting Invitation_June 26 2019
- Invitee List
- Agenda
- Sign-In Sheet
- Meeting Minutes
- Invitee List
- Agenda
- Invite
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- Sign-In Sheet
- Meeting Minutes
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- Agenda
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Hemet-San Jacinto Watermaster
The Hemet‑San Jacinto Watermaster (Watermaster) is a judicial creation of the Superior Court of the State of California in and for the County of Riverside through the Stipulated Judgment entered on April 18, 2013 (Riverside County Superior Court Case No. RIC 1207274). The Stipulated Judgment declares individual rights of Eastern Municipal Water District (Eastern), Lake Hemet Municipal Water District (Lake Hemet), City of Hemet (Hemet), City of San Jacinto (San Jacinto) and other private groundwater pumpers to Groundwater in the Canyon Subbasin, the San Jacinto Upper Pre