Rockaway Beach STP
Rockaway Beach, OR · Tillamook County · Publicly Owned Treatment Works
- Average flow
- 0.19 MGD
- Design flow
- 0.5 MGD
- NPDES permit
- OR0023302
- Effective
- Permit expires
- October 2027
- Population served
- 1,390
- CWNS 2022
Rockaway Beach STP is a publicly owned wastewater treatment works in Rockaway Beach, Tillamook County, Oregon treating an average of 0.19 million gallons per day against a permitted design capacity of 0.5 MGD, serving about 1,390 residents. Treatment on site includes clarifiers, aerated lagoons, uncovered lagoons. It discharges under NPDES permit OR0023302 (effective), which expires in October 2027, with 0 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Compliance snapshot (last 3 years)
- Total violations
- 0
- Effluent violations
- 0
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Rockaway Beach STP.
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Nearby wastewater treatment plants in Oregon
Rockaway Beach · 1 mi away
0.08 MGD
Garibaldi · 4 mi away
0.11 MGD
Bay City · 7 mi away
0.17 MGD
Nehalem · 8 mi away
0.3 MGD
Arch Cape · 13 mi away
0.08 MGD
Tillamook · 14 mi away
0.02 MGD
Cannon Beach · 20 mi away
0.32 MGD
Hebo · 26 mi away
0.02 MGD
Rockaway Beach 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 February 8, 2025.