Project Description
The Secondary treatment expansion system project will construct new federally mandated facilities at the OCSD Reclamation Plant located on Ellis Avenue in Fountain Valley. Through this construction, the Reclamation Plant will be operational to meet secondary standards by increasing secondary treatment capacity by 60 million gallons per day.

The new facilities will include:

• Six aeration basins,
• Six circular clarifiers, and a
• New blower building

Construction began in 2007 and is currently ahead of schedule. The project has an estimated completion date of Fall 2011.

This project is required by the United States Environmental Protection Agency under a Federal Consent Decree requiring OCSD to meet secondary standards by 2012.