Myrtle Point STP | Wastewater Treatment Plant in Myrtle Point, Oregon

Myrtle Point STP is a municipal wastewater treatment facility located in Myrtle Point, Oregon, United States. It serves a population of approximately 2,460 people, making it a small-scale plant in a rural coastal watershed. The facility is situated near the Coquille River, which drains into the Pacific Ocean via Coos Bay. As a US-based plant, it operates under the Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the Oregon Department of Environmental Quality. The plant's discharge ultimately reaches the Coquille River, a coastal stream that supports salmon and steelhead runs. The river flows through forested and agricultural lands before entering the Pacific Ocean, contributing to the ecological health of the Coos Bay estuary, a vital habitat for migratory birds and marine species.

The plant discharges into the Coquille River, which flows approximately 30 miles through southwestern Oregon before entering the Pacific Ocean via Coos Bay. The river supports diverse aquatic life, including Chinook salmon and coho salmon, and the estuary provides critical nursery habitat for fish and shellfish. The watershed is predominantly forested, with some agricultural use, and the plant's discharge must meet water quality standards to protect these resources.