The Woodland Davis Clean Water Agency has approved a contract with the company CH2MHill to build and operate the plant in Woodland for $141.2 million.
Dennis Diemer is the agency's general manager. He says the facility is needed in part to reduce the volume of chemicals in both the drinking water and wastewater discharge.
Diemer says the biggest concerns have been Hexavalent Chromium and Selenium.
"Both communities will be able to not only meet both current and future water regulations, but will also supply them with a sustainable water supply from a quantity standpoint," he says. "And it will also allow them to meet discharge requirements from their wastewater treatment systems."
The plant will be built about five miles from the Sacramento River near Interstate 5 and County Road 23. Fifteen miles of pipe and a new water intake facility are also part of the project.