Welcome to the City of Davis Wastewater Treatment Plant Upgrade project website.  Look here for information about the project status and schedule, and for opportunities to get involved.

The project will design and construct improvements to the City’s existing wastewater treatment plant in order to meet State and Federal regulatory discharge requirements contained in our adopted 2007 National Pollutant Discharge Elimination System (NPDES) permit. The compliance schedules contained within the 2007 permit provide the City until October 2017 to complete the project.

Stay informed about the project by subscribing to our RSS feed. To subscribe, click on the RSS icon located in the upper left corner of this webpage.

You can also watch our progress by subscribing to our YouTube channel at: https://www.youtube.com/channel/UChfR6JzE3ecoiSMd7OCSfWw

Need directions to the Wastewater Plant? Click here – Directions to Davis WWTP


First large concrete pour successfully completed

Construction work for the wastewater treatment facilities is continuing at a rapid pace. Installation of 720,500 pounds of reinforcement steel for the Aeration Tank concrete foundation is almost completed. Approximately 1,900 cubic yards of concrete will be placed for this foundation. This will take place in four placements of which the first one took place …

Read more


Start with a solid foundation

Construction work for the wastewater treatment facilities has started and is rapidly gaining momentum. The Contractor has excavated a 50,000 square foot area to approximately 17 feet deep for construction of the first concrete basins. Placement of stabilization fabric and aggregate base rock are underway in preparation for the foundations for the first structures.  

Read more