Montpelier Wastewater Treatment Facility
949 Dog River Road, Montpelier, VT 05602 · Washington County · Publicly Owned Treatment Works
- Average flow
- 1.92 MGD
- Design flow
- —
- NPDES permit
- VT0100196
- Administratively continued
- Permit expires
- September 2022
- Population served
- 10,429
- CWNS 2022
Montpelier Wastewater Treatment Facility is a publicly owned wastewater treatment works in Montpelier, Washington County, Vermont treating an average of 1.92 million gallons per day, serving about 10,429 residents. It discharges under NPDES permit VT0100196 (administratively continued), which expires in September 2022, with 0 recorded violations in the last three years.
Treatment technology
11 treatment structures and unit processes identified, 2 planned upgrades on record at Montpelier Wastewater Treatment Facility.
Available with a free Klarifi account
See the full treatment train at Montpelier Wastewater Treatment Facility: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 0
- Effluent violations
- 0
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
EPA enforcement history
Federal civil enforcement cases, compliance inspections and informal actions recorded for Montpelier Wastewater Treatment Facility in EPA's ICIS system.
- Formal actions
- 0
- none on record
- EPA inspections
- 4
- latest Jan 2021
No formal federal enforcement case is on record for this plant.
Full case history with a free Klarifi account
Every action against Montpelier Wastewater Treatment Facility with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
2 verified contacts for Montpelier Wastewater Treatment Facility, with validated emails and direct phone numbers.
Unlock 2 verified contacts
Names, validated emails and direct phone numbers for decision-makers at Montpelier Wastewater Treatment Facility, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Vermont
Northfield · 7 mi away
0.48 MGD
Plainfield · 9 mi away
0.08 MGD
Williamstown · 9 mi away
0.11 MGD
Waterbury · 10 mi away
0.35 MGD
Marshfield · 14 mi away
0.02 MGD
Stowe · 15 mi away
0.36 MGD
Cabot · 16 mi away
0.02 MGD
Chelsea · 20 mi away
0.02 MGD
Montpelier 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 October 26, 2026; facility record last updated May 29, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Tertiary treatment · Significant industrial user · all terms