Overview
Kitsap Co SD 7 WWTP on Bainbridge Island, Washington, serves 750 people with secondary treatment. It discharges 492.10 volume units daily, with a designed capacity of 1059.91 units, and is located within 10 km of the coast.
Kitsap Co SD 7 WWTP is a municipal wastewater treatment facility located on Bainbridge Island in Kitsap County, Washington, United States. The plant serves a small population of 750 residents and operates under secondary treatment standards. As a secondary treatment plant, Kitsap Co SD 7 WWTP meets the minimum requirements under the US Clean Water Act for municipal wastewater treatment. The plant has a designed capacity of 1059.91 volume units and currently discharges 492.10 volume units daily. Its location within 10 km of the coast subjects it to additional regulatory scrutiny regarding nutrient and pathogen removal to protect marine waters. The plant's treated effluent ultimately reaches Puget Sound, a major estuary of the Pacific Ocean. Puget Sound supports diverse marine life including salmon, orcas, and shellfish. The plant's coastal proximity means its discharge must comply with strict water quality standards to prevent eutrophication and protect aquatic habitats.
Environmental context
The plant discharges into Puget Sound, a large estuarine system connected to the Pacific Ocean via the Strait of Juan de Fuca. Puget Sound is ecologically sensitive, supporting critical salmon runs, forage fish, and marine mammals. Secondary treatment reduces organic pollutants and suspended solids, but nutrient removal may be limited, posing risks of algal blooms in the sound's enclosed waters.
Frequently asked questions
Kitsap Co SD 7 WWTP is located at 2901 Fort Ward Hill Road Northeast, Bainbridge Island, Washington, USA.
The plant serves approximately 750 residents in the Bainbridge Island area.
The plant discharges treated effluent into Puget Sound, a coastal marine environment. As a secondary treatment facility, it removes organic matter and suspended solids before discharge.
The plant operates under the US Clean Water Act, administered by the Washington State Department of Ecology. It must comply with NPDES permit requirements for secondary treatment and marine discharge standards.
Small plants in the US typically use secondary treatment, often via activated sludge or lagoon systems. They must meet EPA secondary treatment standards for BOD and TSS removal.
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