Skip to main content
Wastewater Treatment

City of Modesto Phase II BNR/Tertiary Treatment Project

Modesto, CA

Producing recycled water for agriculture through advanced treatment.

Project Type

Wastewater Treatment

Constructed Value
$101 million
Delivery Method
Design-Bid-Build
Architect/Engineer
Carollo Engineers

The challenge

Expanding recycled water production for agricultural use required the City of Modesto to develop a facility capable of advanced biological nutrient removal and tertiary treatment. The project also required integrating the new treatment systems with existing wastewater infrastructure and delivering the recycled water to agricultural users beyond the treatment plant.

Modesto
Awards

2016 Northern Project Achievement Award, CMAA

Highlights

UV disinfection


Two miles of effluent discharge pipeline


Large diameter (36-inch) pipeline construction


Integration of technical disciplines during design and construction

Challenge met

Filanc constructed the treatment facilities needed to support biological nutrient removal and tertiary treatment processes at the Jennings Road plant. The work included aeration basins, membrane bioreactor tanks and ultraviolet disinfection systems that produce highly treated recycled water suitable for irrigation.

Additional infrastructure included pump stations, electrical systems, standby generators and an operations center building that supports plant monitoring and control. Filanc also installed more than two miles of 36-inch pipeline conveying recycled water to the Delta-Mendota Canal, where it is delivered to agricultural users served by the Del Puerto Water District. The completed project provides a reliable recycled water supply that supports agriculture while strengthening regional water sustainability in California’s Central Valley.

Recent Projects

Morrow Bay Water Treatment Facility

Morro Bay Water Reclamation Facility

Facility for Agriculture

AgX Membrane Filtration/Reverse Osmosis (MF/RO) Facility

Santa Margarita Conjunctive Use Facility