Thompson Builders Corporation Completes $18.8M Wastewater Treatment Plant in St. Helena, CA
WATER INFRASTRUCTURE & DESALINATION
Thompson Builders Corporation has finalized the construction of a new $18.8 million wastewater treatment facility for the City of St. Helena, CA. The facility features a modern membrane bioreactor (MBR) system that complies with regulatory standards following a 2016 order from the San Francisco Bay Regional Water Quality Control Board. The MBR system processes 500,000 gallons of wastewater daily and integrates biological treatment with membrane filtration.
Feb 20, 2026, 6:19 AM
