Hardwick Wastewater Treatment Facility
107 Treatment Plant Road, Hardwick, VT 05843 · Caledonia County · Publicly Owned Treatment Works
- Average flow
- 0.15 MGD
- Design flow
- —
- NPDES permit
- VT0100137
- Expired
- Permit expires
- June 2023
- Population served
- 1,727
- CWNS 2022
Hardwick Wastewater Treatment Facility is a publicly owned wastewater treatment works in Hardwick, Caledonia County, Vermont treating an average of 0.15 million gallons per day, serving about 1,727 residents. It discharges under NPDES permit VT0100137 (expired), which expires in June 2023, with 33 recorded violations in the last three years.
Treatment technology
7 treatment structures and unit processes identified at Hardwick Wastewater Treatment Facility.
Available with a free Klarifi account
See the full treatment train at Hardwick Wastewater Treatment Facility: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 33
- Effluent violations
- 10
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for Hardwick Wastewater Treatment Facility, with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at Hardwick Wastewater Treatment Facility, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Vermont
Cabot · 9 mi away
0.02 MGD
Marshfield · 12 mi away
0.02 MGD
Morrisville · 12 mi away
0.31 MGD
Danville · 13 mi away
0.04 MGD
Stowe · 16 mi away
0.36 MGD
Plainfield · 17 mi away
0.08 MGD
Johnson · 17 mi away
0.35 MGD
Lyndon · 18 mi away
0.13 MGD
Hardwick 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 November 20, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Centrate · Ozonation · all terms