NapaSan Events and Tours

NapaSan Open House

Join us on Saturday, September 14, 2019 from 10 am to 2pm for NapaSan's Open House!

The NapaSan Open House is an annual event that features treatment plant tours, laboratory visits, bird walks, crafts and games for kids, large equipment demonstrations, and refreshments.

2019 Open House Flyer

For more information, call Stephanie at (707)258-6002.


Adults and Children looking at computer screens
Child behind cutoff
People standing in line

NapaSan Monthly Tours


Join NapaSan staff on the third Thursday of every month at 2pm to take a tour of the facility and learn about the wastewater treatment process!  No reservation necessary- just drop by and join us! Tours are roughly one hour in length.  For more information, call (707)258-6002.