Join Central San for a once-in-a-decade sewer party! In celebration of 80 years of service, Central San is hosting a free, community-wide Open House on Saturday, June 13, from 10 a.m. to 2 p.m. at our headquarters and treatment plant in Martinez. The event will offer fun for all ages, including FREE food and ice cream, behind-the-scenes tours of the wastewater treatment plant, big trucks, hands-on games and activities, educational exhibits, toilet racers (think go-karts, but with toilets), and much more. Free off-site parking and shuttle service will be provided. Space is limited for the treatment plant tours, so preregistration is encouraged. No registration is needed for the other activities, so just drop in and enjoy! For complete event details and to preregister for a tour, please visit: centralsan.org/80th
Saturday Jun 13, 2026
10:00 AM - 2:00 PM PDT
Saturday, June 13, 10 am - 2 pm
Central San headquarters & treatment plant, Martinez Free offsite parking and shuttle service will be available
FREE