Astoria STP
Astoria, OR · Clatsop County · Publicly Owned Treatment Works
- Average flow
- 1.71 MGD
- Design flow
- 5 MGD
- NPDES permit
- 3200097052
- ADC
- Permit expires
- October 2016
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Compliance snapshot (last 3 years)
- Total violations
- 6
- Effluent violations
- 6
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Capital improvement projects in Astoria
| Project | Budget | Years |
|---|---|---|
| Sanitary Sewer Pipe Interceptor Comprehensive Evaluation (including cleaning)and Replacement/Rehabilitation Project | $10,000,000 | 2030–2034 |
| WWTP Headworks Improvements Project | $9,869,232 | 2023–2026 |
| Clearwell and Laboratory at the Water Treatment Plant | $6,000,000 | 2028–2028 |
| Little Bear Creek Waterline Resilience Project | $5,000,000 | 2030–2030 |
| Bear Creek Dam Emergency Spillway Project | $3,878,000 | 2034–2034 |
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
Contacts for Astoria STP are available in the Klarifi platform.
Unlock contacts for this facility
Names, validated emails and direct phone numbers for decision-makers at Astoria STP — plus full compliance history and discharge data.
Try Klarifi freeData sourced from public EPA / NPDES records and Klarifi analysis. Last updated February 2025.