Join us for a free, community-wide event celebrating Central San’s 80 years of service! We’re pulling out all the stops for this once-in-a-decade sewer spectacular, featuring behind-the-scenes discoveries, hands-on activities, and fun for all ages. We can’t wait to see you there! 

Event Highlights 
Tours of our award-winning treatment plant and other facilities 
Free food and ice cream
Demonstrations of our trucks, tools, and equipment 
Toilet racers (like go-karts, but with toilets!) 
Interactive games, crafts, and activities 
Educational exhibits 
Plus, plenty of surprises! 

What to Know 
Parking: Free off-site parking and shuttle service will be available.

Lot A: Contra Costa County Assessors Office
2530 Arnold Dr, Martinez
Lot B: Contra Costa County Public Works Department
255 Glacier Dr, Martinez
Handicap Parking
5019 Imhoff Place, Martinez