PROJECT STATUS UPDATE ON THE
CONSOLIDATED TREATMENT FACILITY
PHASE 3 EXPANSION (CIP WW 22-38)
City Council Regular Meeting
January 13, 2025 - Item 2.1
Project Scope:
Construction of two (2) new Membrane
Bioreactor (MBR) trains and a new sludge
handling area & building.
Project Highlights:
• Increase capacity = 2.5 MGD to 5.0 MGD.
• Total Project Cost = $45 Million
• Construction Schedule: 18-24 months
• State of the art facility
• Treatment capacity needed for future
development
• Rate stabilization for residents, economies
of scale
B A C K G R O U N D
2025
Consolidated
Mult. Facilities
CTF Phase 2
Expansion
River Outfall
Project
CTF Phase 3
Expansion
2015 2019 2022
P R O J E C T U P D A T E
Construction began on September 5, 2024
and is ahead of schedule.
Completed Items:
• Excavation and dewatering
• Cooling pond improvements
• Headworks improvements
• Underground piping
• Concrete slab for MBR train
• Sludge handling area slab (3 acres)
Upcoming Work:
• Vertical concrete walls for MBR train
• Metal building for sludge handling area
• MBR filter installation
D Y E S T U D Y – J A N U A R Y 2 7 -2 9
• In 2023 the City acquired a National Pollutant
Discharge Elimination System (NPDES) permit
which allows for treated water to be discharged to
the San Joaquin River
• Permit requires that the City perform a dye study
to identify dispersion patterns
• Inject bright pink or a purplish color at the CTF
• Monitoring equipment will be placed in the river
including boats
• The coloring is temporary and poses no harm to
the San Joaquin River, people, boats, or wildlife
P I C T U R E S & V I D E O
https://vimeo.com/1046569907?share=copy