Gresham WWTP
Portland, OR · Multnomah County · Publicly Owned Treatment Works
- Average flow
- 9.5 MGD
- Design flow
- 15 MGD
- NPDES permit
- 3602854483
- Effective
- Permit expires
- August 2026
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Compliance snapshot (last 3 years)
- Total violations
- 1
- Effluent violations
- 1
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Capital improvement projects in Portland
| Project | Budget | Years |
|---|---|---|
| Bull Run Filtration | $1,021,346,000 | 2025–2029 |
| Bull Run Filtration | $633,880,000 | 2024–2027 |
| Bull Run Pipelines | $301,685,000 | 2025–2029 |
| Bull Run Pipelines | $178,960,000 | 2024–2027 |
| Willamette River Pipe Crossing | $113,560,000 | 2025–2030 |
Full project details — scope, funding source, engineering consultant and the decision-makers behind each project — are available in Klarifi, along with similar wastewater capital projects in other cities.
Key contacts
1 verified contact for Gresham WWTP, with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at Gresham WWTP — plus full compliance history and discharge data.
Try Klarifi freeData sourced from public EPA / NPDES records and Klarifi analysis. Last updated July 2025.