This project is for the installation of an individual septic system with a drip mound drainfield on Trust land on the Tulalip Reservation in Snohomish County, WA. The proposed septic system is to consist of solid sewer pipe, an underground cleanout, a 1,250-gallon concrete septic tank rated for 480 gallons/day, a 1,250-gallon pump chamber tank, and all controls. The system will include approximately 500 linear feet of supply and return line and manifold, and approximately 1,365 square feet of sand mound drainfield containing 480 feet of drip line.