Temecula Valley Regional Water Reclamation Facility Plant 3 Electrical Modifications
Summary
SCH Number
2026100472
Public Agency
Eastern Municipal Water District
(EMWD)
Document Title
Temecula Valley Regional Water Reclamation Facility Plant 3 Electrical Modifications
Document Type
NOE - Notice of Exemption
Received
Posted
10/14/2026
Document Description
Temecula Valley Regional Water Reclamation Facility (TVRWRF) Plant 3 is currently experiencing intermittent failures in the membrane bioreactor mixers (MBM). This was found to be a result of sever mixer corrosions from a faulty grounding system. Electrical issues at Plant 3 were also found, including potential bonding issues with the aluminum handrailing around the MBR basins, tripping of ground fault circuit interrupters (GFCI) which damaged onsite wastewater samplers, and return activated sludge SCADA hardware failure.
The scope of work would include installation of sump pumps to discharge drainage and groundwater infiltration and the upgrade to existing electrical panel with isolation transformer and GFCI protection for wet location application. These upgrades would eliminate potential safety hazards within six electrical vaults and stop infiltration from entering the interconnected conduits and below grade electrical panels. Beneficiaries of the project are Eastern Municipal Water District TVRWRF staff and ratepayers.
Contact Information
Name
Martha Vilchis
Agency Name
Eastern Municipal Water District
Job Title
Water Resources Specialist Associate I
Contact Types
Lead/Public Agency / Project Applicant
Address
Phone
Email
Location
Cities
Temecula
Counties
Riverside
Regions
Citywide, Southern California
Zip
92590
Other Location Info
42565 Avenida Alvarado
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
15301
Reasons for Exemption
Implementation of the proposed project would result in the repair, maintenance, and minor alteration of the existing facility with negligible expansion of the existing use. The electrical equipment at TVRWRF's Plant 3 is already existing and repairs would be made to allow it to continue running as well as reduce potential safety hazards to EMWD staff. The existing use would not be extended, as the mechanism would be replaced with new ones to maintain service.
County Clerk
Riverside
Attachments
Notice of Exemption
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