Snohomish Wastewater System, Snohomish

Overview

Snohomish Wastewater System serves 9,200 people in Snohomish, Washington. The plant operates under U.S. Clean Water Act regulations with a designed capacity of 1.00 million gallons per day.

The Snohomish Wastewater System is a municipal wastewater treatment facility located in Snohomish, Washington, serving a population of approximately 9,200 residents. The plant is part of the region's infrastructure managed by local authorities to treat domestic wastewater from the community. Under the U.S. Clean Water Act, plants of this scale are typically required to meet secondary treatment standards through National Pollutant Discharge Elimination System (NPDES) permits issued by the Washington State Department of Ecology. The designed capacity of 1.00 million gallons per day indicates the plant's ability to handle average daily flows from the service area. The plant discharges treated effluent into the Snohomish River basin, which flows into Puget Sound via Possession Sound. This estuarine environment supports salmon runs, shellfish beds, and diverse marine life, making effective treatment critical for water quality and ecosystem health in the region.

Environmental context

The Snohomish Wastewater System discharges into the Snohomish River watershed, which drains into Possession Sound and ultimately Puget Sound. This estuarine environment supports critical salmon habitat, shellfish harvesting areas, and migratory bird populations. Maintaining high treatment standards is essential to protect these ecologically sensitive waters from nutrient pollution and pathogens.

Frequently asked questions

The Snohomish Wastewater System is located in Snohomish, Washington, United States, near the Snohomish River.

The plant serves approximately 9,200 residents in the Snohomish area.

The plant discharges treated effluent into the Snohomish River basin, which flows into Possession Sound and Puget Sound.

The plant operates under the U.S. Clean Water Act, with NPDES permits issued by the Washington State Department of Ecology, requiring secondary treatment.

For a population of 9,200, secondary treatment is standard under the Clean Water Act, involving biological processes to remove organic matter and solids.