A view of the postpile from across the San Joaquin River, Devils Postpile / National Park Service

Devils Postpile National Monument in California announced the release of the park's Wastewater Treatment System Replacement Environmental Assessment on June 7. This project will test percolation rates for and install a new leachfield, septic tanks, and associated piping for the wastewater system which serve the visitor center and administrative areas of the park.

This proposed project will also replace the comfort stations in the park's campground and day-use area with improved restroom facilities that are accessible. Additionally, this project will add vault toilets to expand capacity during the peak summer season, which will better serve visitors coming to experience Devils Postpile National Monument.

Public participation is an important element of the project planning process and we welcome your review and comments. Please submit all comments on the environmental assessment at the following link: https://parkplanning.nps.gov/depo_wastewater. 

Public comments will be accepted through July 7, 2021.