Treatment Plant Tours


Treatment Plant Tours

Have you ever wondered what happens to the water that goes down your drain?

Join us for a free walking tour, virtual tour, or speaker event to discover how we collect and clean more than 13 billion gallons of wastewater every year!


Virtual Tour Experience

Our award-winning, interactive Virtual Experience features photos, videos, fun facts, hands-on science activities for kids, hidden prizes, and more. Drop by online, explore, click, and learn more about your sewer system and how you can help protect your pipes and the environment

CLICK HERE To start our Virtual Treatment Plant Tour


Public Speaking Events

Looking for a speaker for your group or event? We may be able to help!

Central San offers free presentations on pollution prevention and the world of wastewater. Talks can be in-person or virtual and tailored to your group’s interests.

For more information, please contact Ben Lavender at or (925) 335-7723.