Hood River STP - Wastewater Treatment Plant in Hood River, Oregon

Hood River STP is a municipal wastewater treatment plant located in Hood River, Oregon, along the Columbia River Highway. The facility serves a population of about 7,788 residents in the city and surrounding area. As a plant in the United States, it operates under the Clean Water Act, which requires National Pollutant Discharge Elimination System (NPDES) permits for all discharges to surface waters. The plant's treated effluent is discharged into the Columbia River, which forms the border between Oregon and Washington and flows westward to the Pacific Ocean. The Columbia River is the largest river in the Pacific Northwest, supporting diverse aquatic life including salmon and steelhead. The plant's discharge is regulated to protect water quality and aquatic habitats downstream. Environmental significance: The Columbia River watershed is ecologically vital, supporting numerous fish species and providing water for irrigation, industry, and recreation. The Hood River STP's discharge contributes to the overall water quality of the river, and its operation is critical for protecting the downstream environment, including the Columbia River estuary and the Pacific Ocean.

The Hood River STP discharges into the Columbia River, which flows approximately 1,200 miles from the Rocky Mountains to the Pacific Ocean. The lower Columbia River supports critical habitats for salmon, steelhead, and other migratory fish. The river's estuary is a dynamic ecosystem that provides nursery grounds for juvenile fish and supports diverse bird populations. The plant's discharge must meet water quality standards to protect these downstream ecological resources.