La Conner STP
Mount Vernon, WA · Skagit County · Publicly Owned Treatment Works
- Average flow
- 0.26 MGD
- Design flow
- —
- NPDES permit
- 3603465294
- ADC
- Permit expires
- February 2024
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Clarifiers
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Uncovered lagoons
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Carrousels / oxidation ditches
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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 Mount Vernon
| Project | Budget | Years |
|---|---|---|
| Sewer Restoration Program | $3,000,000 | 2024–2029 |
| Combined Sewer System Improvements | $750,000 | 2026–2026 |
| Wastewater Treatment Plant Upgrades | $600,000 | 2024–2029 |
| Sewer Extensions to Non-Sewered Parcels | $100,000 | 2026–2026 |
| Sewer Collection System Expansion | $60,000 | 2026–2026 |
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 La Conner STP are available in the Klarifi platform.
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Names, validated emails and direct phone numbers for decision-makers at La Conner STP — plus full compliance history and discharge data.
Try Klarifi freeData sourced from public EPA / NPDES records and Klarifi analysis. Last updated November 2025.