Overview
CONDON STP is a secondary treatment plant serving 770 people in Condon, Oregon. It discharges 264.98 thousand cubic meters of treated wastewater annually.
CONDON STP is a municipal wastewater treatment plant located in Condon, Oregon, a small town in Gilliam County. The facility serves a population of approximately 770 residents, reflecting the rural character of the region. The plant is situated along the John Day Highway, a key transportation route in north-central Oregon. The plant provides secondary treatment, which is the standard level required by the U.S. Clean Water Act for municipal wastewater facilities. With a designed capacity of 492.10 thousand cubic meters per year and an annual discharge volume of 264.98 thousand cubic meters, the plant operates below its capacity, indicating room for future growth. The plant is regulated under the National Pollutant Discharge Elimination System (NPDES) permit program, administered by the Oregon Department of Environmental Quality. The treated effluent is discharged into the local watershed, which ultimately drains into the John Day River, a major tributary of the Columbia River. The John Day River basin supports diverse aquatic life, including salmon and steelhead, and is an important ecological corridor in the Pacific Northwest. The plant's operations contribute to protecting water quality in this sensitive river system.
Environmental context
The plant discharges into the John Day River watershed, which flows into the Columbia River and eventually the Pacific Ocean. The John Day River is one of the longest free-flowing rivers in the contiguous United States, supporting critical habitat for threatened and endangered fish species such as Chinook salmon and steelhead trout. The region's semi-arid climate and agricultural land use make water quality management essential for maintaining ecosystem health.
Frequently asked questions
CONDON STP is located on John Day Highway in Condon, Gilliam County, Oregon, United States.
The plant serves approximately 770 residents in the Condon area.
The plant discharges treated effluent into the local watershed, which drains into the John Day River, a tributary of the Columbia River.
The plant operates under the U.S. Clean Water Act, with NPDES permits issued by the Oregon Department of Environmental Quality.
For small communities in the U.S., secondary treatment is the standard requirement under the Clean Water Act, which CONDON STP provides.
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