Philomath WWTP
Corvallis, OR · Benton County · Publicly Owned Treatment Works
- Average flow
- 0.42 MGD
- Design flow
- 0.83 MGD
- NPDES permit
- 3400220960
- ADC
- Permit expires
- June 2017
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Uncovered lagoons
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Compliance snapshot (last 3 years)
- Total violations
- 11
- Effluent violations
- 0
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Contacts for Philomath WWTP are available in the Klarifi platform.
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Names, validated emails and direct phone numbers for decision-makers at Philomath WWTP — plus full compliance history and discharge data.
Try Klarifi freeData sourced from public EPA / NPDES records and Klarifi analysis. Last updated October 2025.