Overview
Rustlewood Dev STP is a secondary treatment plant serving 126 people in Walkers Landing, Washington. It discharges 37.85 m³/day of treated wastewater near the coast.
Rustlewood Dev STP is a municipal wastewater treatment facility located at 199 East Rustle Way in Walkers Landing, Mason County, Washington. The plant serves a small population of 126 residents, reflecting its role as a local community system in a rural coastal setting. The facility provides secondary treatment, which is the standard required under the U.S. Clean Water Act for municipal plants. With a designed capacity of 75.71 m³/day and a current discharge volume of 37.85 m³/day, the plant operates well within its capacity, indicating room for future growth or seasonal fluctuations. The plant is situated within 10 km of the Pacific coast, making its discharge potentially influential on nearshore marine water quality. Treated effluent likely enters a local stream or estuary that drains into Puget Sound or the Pacific Ocean, supporting the region's diverse aquatic ecosystems and shellfish habitats.
Environmental context
The plant lies within the Puget Sound watershed, a large estuarine system that drains into the Pacific Ocean via the Strait of Juan de Fuca. The receiving waters support critical habitats for salmon, orcas, and shellfish. As a coastal facility, its secondary-treated discharge must meet stringent state and federal standards to protect marine life and recreational uses.
Frequently asked questions
Rustlewood Dev STP is located at 199 East Rustle Way in Walkers Landing, Mason County, Washington, United States.
The plant serves a population of 126 residents, making it a small community wastewater system.
The plant provides secondary treatment and discharges treated effluent at a rate of 37.85 m³/day. As a coastal facility within 10 km of the Pacific, its discharge likely enters a local waterway that drains into Puget Sound.
As a U.S. municipal plant, it operates under the Clean Water Act, with National Pollutant Discharge Elimination System (NPDES) permits issued by the Washington State Department of Ecology. Secondary treatment is the minimum standard for such facilities.
Small plants in Washington commonly use secondary treatment, often via activated sludge or lagoon systems. They must comply with state water quality standards to protect sensitive coastal and estuarine environments.
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