Project details

Project location:

Visalia, California

Project Type:


year completed



This project upgrades the existing treatment plant to a 22-mgd nitrogen removal and Title 22 recycled water production plant. The work includes the construction of an order control system for the head works, inter-stage pump station and fine screens, conversion of the existing aeration basins and aeration system to a nitrogen removal process, replacement of the existing secondary sedimentation and chlorination process with a new membrane bioreactor (MBR) process to be followed by a Ultra-Violet light (UV) Disinfection, modifications to existing digesters and construction of a new digester, construction of a new sludge dewatering system and construction of a recycled water pumping station.