Skagit Co SD2 Big Lake WWTP, Big Lake

Overview

Skagit Co SD2 Big Lake WWTP is a secondary treatment plant serving 1,835 people in Big Lake, Washington. It discharges treated wastewater into the local watershed, ultimately draining to Puget Sound.

Skagit County Sewer District 2 Big Lake Wastewater Treatment Plant serves the community of Big Lake in Skagit County, Washington. The plant provides secondary treatment for a population of approximately 1,835 residents, operating as part of the county's municipal wastewater infrastructure. The plant has a designed capacity of 757.08 megaliters per year and currently treats a discharge volume of 473.18 megaliters annually. As a secondary treatment facility, it meets the standard requirements under the U.S. Clean Water Act, which mandates secondary treatment for municipal wastewater plants to protect water quality. The treated effluent is discharged into the local watershed, which flows into the Skagit River system and eventually reaches Puget Sound. This water body supports diverse aquatic life and is an important ecological corridor in the Pacific Northwest region.

Environmental context

The plant discharges into the Skagit River basin, which drains into Puget Sound, a major estuarine system in Washington. The Skagit River supports salmon runs and diverse wildlife, making water quality protection critical. The plant's secondary treatment helps reduce nutrient and pollutant loads to the downstream environment.

Frequently asked questions

The plant is located on Nookachamp Hills Drive in Big Lake, Skagit County, Washington, United States.

The plant serves a population of 1,835 people in the Big Lake area.

The plant discharges treated effluent into the local watershed, which flows into the Skagit River system and ultimately reaches Puget Sound.

The plant provides secondary treatment, which is the standard required by the U.S. Clean Water Act for municipal wastewater treatment plants.

As a U.S. plant, it operates under the Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the Washington State Department of Ecology.