Temecula Valley Regional Water Reclamation Facility Sidestream Treatment Facility Project
Summary
SCH Number
2025090375
Public Agency
Eastern Municipal Water District
(EMWD)
Document Title
Temecula Valley Regional Water Reclamation Facility Sidestream Treatment Facility Project
Document Type
NOE - Notice of Exemption
Received
Posted
9/9/2025
Document Description
The effects of community development in Eastern Municipal Water District's (EMWD) service area have led to increased nitrogen loading in the wastewater treatment system at Regional Water Reclamation Facilities (RWRF). Sidestream treatment is used to lower high strength ammonia concentrated in reject water from biosolids dewatering and aid with nitrogen reduction. Sidestream treatment would help Temecula Valley RWRF meet the effluent concentrations standards for nutrients without conducting major plant expansions. The scope of work includes: a centrate transfer pump station; centrate pipelines and cleanout vault; the construction of a sidestream treatment facility with two moving bed biofilm reactors and two sidestream equalization tanks; and a new concrete masonry unit sidestream service building with aeration air blowers, an electrical room, and a chemical room. Beneficiaries of the project are EMWD ratepayers.
Contact Information
Name
Martha Vilchis
Agency Name
Eastern Municipal Water District
Job Title
Water Resources Specialist Assistant I
Contact Types
Lead/Public Agency / Project Applicant
Address
Phone
Email
Location
Cities
Temecula
Counties
Riverside
Regions
Citywide, Countywide
Zip
92590
Other Location Info
42565 Avenida Alvarado
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
Art. 19, Sec. 15301(b)
Reasons for Exemption
Implementation of the project would result in the minor alteration of an existing facility with no expansion to the existing use and public utility service provided. The construction of a sidestream treatment facility and its needed equipment will increase wastewater reclamation efficiency without major facility expansion.
County Clerk
Riverside
Attachments
Notice of Exemption
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