Construction Update

The City of Auburn has started construction on a $5 million upgrade to its wastewater treatment. The plant, located off Ophir Road, is being equipped with a state-of-the-art disinfection system that uses ultraviolet light to disinfect the wastewater prior to discharge into Auburn Ravine Creek. 

This upgrade project was required as part of the City’s renewed discharge permit issued by the State of California. After the upgrades are completed, the treated water leaving the plant will be free of nitrogen and it will meet the State’s stringent “unrestricted reuse” standards for recycled water. 

Construction is expected to take about one year. Check back often to see photographs of our progress through 2009 and 2010.

12/23/09 - Excavation for new clarifier. Approx 20 cubic yards of gunite placed.

1/6/09 - Excavation for new clarifier along south side. Soil nail walls were installed to provide excavation stability

12/26/10 - Ultraviolet treatment structure, influent box and channel walls.

02/04/10 - Clarifier pedestal base, adjusting rebar around the sixteen inch mixed liquor pipe penetration.

02/04/10 - Ultraviolet structure, placing concrete for channel walls, six masons, and fifty yards of concrete .

02/08/10 - Completed ultraviolet structure showing walls and influent opening.

02/05/10 clarifier pedestal base showing the rebar encasement of the sixteen-inch mixed liquor pipe and the twelve-inch return sludge activated pipe.

Photos from January 6, 2010

Photos from October-November, 2009