Junction City STP
Junction City, OR · Lane County · Publicly Owned Treatment Works
- Average flow
- 0.55 MGD
- Design flow
- 0.9 MGD
- NPDES permit
- OR0026565
- Effective
- Permit expires
- October 2028
- Population served
- 8,977
- CWNS 2022
Junction City STP is a publicly owned wastewater treatment works in Junction City, Lane County, Oregon treating an average of 0.55 million gallons per day against a permitted design capacity of 0.9 MGD, serving about 8,977 residents. Treatment on site includes aerated lagoons. It discharges under NPDES permit OR0026565 (effective), which expires in October 2028, with 167 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Aerated lagoons
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Compliance snapshot (last 3 years)
- Total violations
- 167
- Effluent violations
- 119
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
2 verified contacts for Junction City STP, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Junction City STP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Oregon
Harrisburg · 5 mi away
—
Monroe · 7 mi away
0.04 MGD
Monroe · 10 mi away
0.0027 MGD
Coburg · 10 mi away
0.15 MGD
Halsey · 12 mi away
0.04 MGD
Veneta · 14 mi away
—
Brownsville · 17 mi away
0.1 MGD
Corvallis · 22 mi away
0.43 MGD
Junction City STP: frequently asked questions
Sources and methodology
Flow, permit and violation figures come from the EPA's ICIS-NPDES discharge monitoring records. Population served comes from the Clean Watersheds Needs Survey 2022. Treatment structures are identified by Klarifi's review of aerial imagery, and capital improvement projects are extracted from published municipal budget documents. Violations are counted over the last three years of monitoring reports.
Data refreshed September 11, 2026; facility record last updated April 24, 2025.