Overview
Kellogg Creek STP serves Milwaukie, Oregon, treating wastewater for approximately 88,705 residents. The plant operates under the U. S. Clean Water Act, discharging treated effluent into the Kellogg Creek watershed, which flows to the Willamette River
Kellogg Creek STP is a municipal wastewater treatment plant located in Milwaukie, Oregon, serving a population of about 88,705. The facility is situated in Clackamas County and plays a key role in managing wastewater for this suburban community near Portland. As a U. S. plant serving a medium-to-large agglomeration, it operates under the Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permitting. Plants of this scale typically employ secondary or advanced treatment to meet state and federal water quality standards. The plant discharges into the Kellogg Creek watershed, which flows into the Willamette River near its confluence with the Columbia River. This waterway supports diverse aquatic life and is an important migratory corridor for salmon and steelhead. The plant's operations are critical to protecting downstream water quality in the Portland metropolitan area.
Environmental context
The plant discharges into Kellogg Creek, a tributary of the Willamette River, which flows north to join the Columbia River. The Willamette River supports a variety of fish species, including threatened salmon runs, and provides habitat for aquatic birds and mammals. The watershed is ecologically sensitive due to urban runoff and industrial activity in the region.
Frequently asked questions
Kellogg Creek STP is located in Milwaukie, Oregon, along Trolley Trail near Island Station and Lake Road, in Clackamas County.
The plant serves approximately 88,705 residents in the Milwaukie area.
The plant discharges treated effluent into Kellogg Creek, which flows into the Willamette River and then the Columbia River.
As a U. S. facility, it operates under the Clean Water Act and is regulated by an NPDES permit issued by the Oregon Department of Environmental Quality.
Plants of this scale in Oregon typically employ secondary or advanced treatment to meet state water quality standards, especially to protect salmon-bearing streams.
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