NapaSan Events and Tours

NapaSan Open House


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

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

Stay tuned for information about the 2019 Open House!

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.