We all have those "how does that thing work?" moments from "how does clean water get to homes?" to  "how is water cleaned?". 

If you wondered that, too, we have answers! Throughout our community are network of pipes, pumps, plants, and more that clean water before it goes back into the world or deliver water to homes and businesses so you have a go-to water resource always. 

If you're curious, take a tour! Below are in-person and virtual offerings for our wastewater and water utility. Come discover the unseen systems that keep Roseville running. 

Wastewater Utility Tour

Take a shower. Wash your clothes. Flush the toilet. You know where water comes from, but where does it all go? From your house to the creek in 24 hours, our Wastewater Utility handles millions of gallons of water daily. Click the numbers on our virtual tour below to get a behind-the-scenes look at the processes that keep the water moving and the environment healthy.

Roseville’s Wastewater Utility

  • Operates two wastewater treatment facilities that have the capacity to treat up to 30 million gallons of water daily
  • Maintains 505 miles of sewer mainlines, 246 miles of sewer laterals and 11,195 manholes
  • Delivers one billion gallons of recycled water annually Roseville's sewer system protects local creeks and river water quality and meets federal standards at the lowest possible cost.
In-person tours at the Pleasant Grove Wastewater Treatment Plant are offered monthly in the spring and fall (weather permitting). Tours begin at 9 a.m., are approximately two hours, and are about one mile in length. Participants must be 12 years of age or older, and pre-registration is required.

Sign up for one of the tours below:

Tuesday, September 13

Tuesday, October 11

Tuesday, November 8

For additional information or questions, please contact the Utility Exploration Center at (916) 746-1550.

To learn more about the wastewater utility and Roseville's sewer system, visit roseville.ca.us/sewer.

Water supply tour


Our water supply utility distributes drinking water to nearly 130,000 residents, thousands of businesses and millions of visitors. To distribute drinking water reliably, we:

  • operate a 100 million gallon per day treatment plant
  • maintain more than 600 miles of pipes, 4,500 hydrants, three water tanks that equal 20 million gallons of water
  • manage active groundwater well program and used when needed

There is a lot that goes into getting water to homes and businesses. Take a 360 degree virtual tour to learn about how we do just that!