Check out Wastewater Utility 101 – an in-depth look at the City’s wastewater utility.
The City’s Wastewater Division operates and maintains the City’s wastewater system, supporting the residential, commercial, and industrial activities of the community. This includes the operation and maintenance of the collection system, treatment plant, and restoration wetlands, as well as the treatment of the wastewater generated in the Yolo County service areas of El Macero, North Davis Meadows, Davis Creek (formerly Royal Oaks) Mobile Home Park, and the Teichert Construction Complex.
As with most municipalities in California, the City of Davis wastewater collection and storm drain systems are separate. Wastewater flows to the wastewater treatment plant via the collection system and stormwater flows directly to local waterways, untreated.
The Collection System
- 164 miles of gravity sewers (approximately 3,300 line segments) ranging in size from 6 to 66 inches in diameter – to transport the wastewater to the pump stations
- 3,224 manholes – to provide access to sewer mains
- 6 pump stations - Davis’ wastewater collection system moves wastewater via gravity, and in certain areas of the City, there are pump stations to raise the wastewater higher so it can continue to flow via gravity to the wastewater treatment plant. By the time the wastewater piles reach the treatment plant, they are 40 feet below the surface.
- 2.63 miles of force mains ranging in size from 4 to 14 inches – to transport the wastewater from the pump stations
- Roughly 123 miles of sewer laterals – the piping from the sewer main to the building.
Site Content Includes:
|Includes important information to know if you’re experiencing a sewer back-up, such as the sewer lateral maintenance procedure, and sewer maintenance responsibilities for property owners|
|Learn more about how wastewater is treated at the City's Wastewater Treatment Plant, and the upgrade project completed in 2019|
|Learn how to keep pollutants and other unwanted items out of the wastewater collection system|
|Read about the Wetlands, which utilizes reclaimed wastewater to provide wildlife habitat, recreation, and environmental learning opportunities. It is one of the City's most valuable open space resources|
|Includes important information related to wastewater (also called sanitary sewer) rate studies, which evaluate the utility's revenue requirements and provide recommendations for rates. Also includes information on the Proposition 218 process for rate setting|