Sequim Water Reclamation Facility
Sequim, WA · Clallam County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- —
- NPDES permit
- WAG994556
- Terminated
- Permit expires
- December 2026
- Population served
- 10,170
- CWNS 2022
Sequim Water Reclamation Facility is a publicly owned wastewater treatment works in Sequim, Clallam County, Washington, serving about 10,170 residents. Treatment on site includes clarifiers, aerated lagoons, uncovered lagoons, carrousels / oxidation ditches. It discharges under NPDES permit WAG994556 (terminated), which expires in December 2026, with 7 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Clarifiers
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Aerated lagoons
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Uncovered lagoons
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Carrousels / oxidation ditches
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Compliance snapshot (last 3 years)
- Total violations
- 7
- Effluent violations
- 6
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
3 verified contacts for Sequim Water Reclamation Facility, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Sequim Water Reclamation Facility, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Washington
Port Townsend · 14 mi away
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Port Angeles · 16 mi away
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Lopez Island · 31 mi away
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Kingston · 33 mi away
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Suquamish · 34 mi away
0.16 MGD
Mount Vernon · 34 mi away
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Stanwood · 34 mi away
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Marysville · 37 mi away
0.17 MGD
Sequim Water Reclamation Facility: 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 November 20, 2025.