Cloverdale Sanitary District STP
Cloverdale, OR · Tillamook County · Publicly Owned Treatment Works
- Average flow
- 0.0078 MGD
- Design flow
- 0.04 MGD
- NPDES permit
- OR0027294
- Effective
- Permit expires
- August 2029
- Population served
- 265
- CWNS 2022
Cloverdale Sanitary District STP is a publicly owned wastewater treatment works in Cloverdale, Tillamook County, Oregon treating an average of 0.0078 million gallons per day against a permitted design capacity of 0.04 MGD, serving about 265 residents. Treatment on site includes uncovered lagoons. It discharges under NPDES permit OR0027294 (effective), which expires in August 2029, with 2 recorded violations in the last three years.
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
- 2
- Effluent violations
- 1
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Cloverdale Sanitary District STP.
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Nearby wastewater treatment plants in Oregon
Hebo · 2 mi away
0.02 MGD
Tillamook · 16 mi away
0.02 MGD
Grand Ronde · 17 mi away
0.02 MGD
Lincoln City · 20 mi away
1.44 MGD
Bay City · 21 mi away
0.17 MGD
Willamina · 22 mi away
0.1 MGD
Gleneden Beach · 23 mi away
0.05 MGD
Garibaldi · 24 mi away
0.11 MGD
Cloverdale Sanitary District 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.