Essex Junction Wastewater Treatment Facility
Essex Junction, VT · Chittenden County · Publicly Owned Treatment Works
- Average flow
- 1.67 MGD
- Design flow
- —
- NPDES permit
- VT0100111
- Administratively continued
- Permit expires
- June 2026
- Population served
- 19,080
- CWNS 2022
Essex Junction Wastewater Treatment Facility is a publicly owned wastewater treatment works in Essex Junction, Chittenden County, Vermont treating an average of 1.67 million gallons per day, serving about 19,080 residents. Treatment on site includes clarifiers, aerated lagoons, biogas silos, biogas balloons, biological treatment, other and other unit processes. It discharges under NPDES permit VT0100111 (administratively continued), which expires in June 2026, with 2 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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Biogas silos
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Biogas balloons
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Biological Treatment, Other
unit processBiosolids Aerobic Digestion
unit processBiosolids Anaerobic Digestion with Energy Recovery
unit processBiosolids Mechanical Dewatering
unit processBiosolids Thickening
unit processChemical P Removal
unit processDechlorination
unit processDisinfection, chlorine/ chloramine
unit processFiltration
unit processFlow Equalization
unit processScreening
unit processSludge Blanket, Anaerobic
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Compliance snapshot (last 3 years)
- Total violations
- 2
- Effluent violations
- 2
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Essex Junction Wastewater Treatment Facility.
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Nearby wastewater treatment plants in Vermont
Burlington · 4 mi away
—
Winooski · 4 mi away
0.46 MGD
So Burlington · 5 mi away
0.25 MGD
Shelburne · 7 mi away
0.17 MGD
Richmond · 8 mi away
0.07 MGD
Shelburne · 9 mi away
0.23 MGD
Hinesburg · 10 mi away
0.11 MGD
Milton · 11 mi away
0.25 MGD
Essex Junction Wastewater Treatment 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 April 24, 2025.