Ferndale STP
Ferndale, WA · Whatcom County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- —
- NPDES permit
- WAR308713
- Terminated
- Permit expires
- December 2025
- Population served
- 13,198
- CWNS 2022
Ferndale STP is a publicly owned wastewater treatment works in Ferndale, Whatcom County, Washington, serving about 13,198 residents. Treatment on site includes clarifiers, aerated lagoons. It discharges under NPDES permit WAR308713 (terminated), which expires in December 2025, with 1 recorded violation 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
- 1
- Effluent violations
- 1
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
2 verified contacts for Ferndale STP, with validated emails and direct phone numbers.
Unlock 2 verified contacts
Names, validated emails and direct phone numbers for decision-makers at Ferndale STP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Washington
Bellingham · 3 mi away
0.07 MGD
Blaine · 9 mi away
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Lynden · 10 mi away
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Everson · 13 mi away
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Lopez Island · 26 mi away
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Burlington · 29 mi away
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Sedro-Woolley · 29 mi away
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Mount Vernon · 31 mi away
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Ferndale 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 April 13, 2025.