The Central Kitsap Treatment Plant is a regional facility designed to serve the central area of Kitsap County. The facility began operating in 1979 as a conventional activated sludge - secondary treatment facility. The treatment plant provides sewage service for the cities of Silverdale, Keyport, and Poulsbo, the Central Kitsap area, the Naval Submarine Base Bangor, and the Naval Undersea Warfare Engineering Station at Keyport.
Effluent from the Central Kitsap Treatment Plant is discharged to Port Orchard Bay, Puget Sound. The effluent is discharged
approximately 3,200 feet offshore at a depth of 46 feet below mean low water.
The Central Kitsap Treatment Plant Resource Recovery & Process Improvement Project in Brownsville was completed in fall of 2015. This project addresses necessary repairs and rehabilitation of outdated and undersized sewage treatment equipment and also allows for the recovery of energy by capturing methane gas for co-generation of heat and electricity. More information on the project is available
Treatment Plant Tour: VideoIn collaboration with BKAT-TV, the Kitsap County Sewer Utility completed a 12-minute documentary highlighting the treatment process at the Central Kitsap Treatment Facility in Brownsville.
CK Treatment Plant from
BKAT TV on
Design CapacityAverage flow for the maximum month: 6.0 million gallons per dayInfluent BOD5 loading for the maximum month: 14,100 pounds per dayInfluent TSS loading for the maximum month: 11,400 pounds per dayKey Facts: