Tri-Municipal WWTP
171 Sheafe Road, Wappingers Falls, NY 12590 · Dutchess County · Publicly Owned Treatment Works
- Average flow
- 1.63 MGD
- Design flow
- 2.78 MGD
- NPDES permit
- NY0149209
- Administratively continued
- Permit expires
- August 2019
- Population served
- 7,726
- CWNS 2022
Tri-Municipal WWTP is a publicly owned wastewater treatment works in Wappingers Falls, Dutchess County, New York treating an average of 1.63 million gallons per day against a permitted design capacity of 2.78 MGD, serving about 7,726 residents. It discharges under NPDES permit NY0149209 (administratively continued), which expires in August 2019, with 28 recorded violations in the last three years.
Treatment technology
2 treatment structures and unit processes identified at Tri-Municipal WWTP.
Available with a free Klarifi account
See the full treatment train at Tri-Municipal WWTP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 28
- Effluent violations
- 28
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 Tri-Municipal WWTP in EPA's ICIS system.
- Formal actions
- 0
- none on record
- EPA inspections
- 1
- latest Jun 2005
No formal federal enforcement case is on record for this plant.
Full case history with a free Klarifi account
Every action against Tri-Municipal WWTP with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
1 verified contact for Tri-Municipal WWTP, with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at Tri-Municipal WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in New York
Marlboro · 1 mi away
0.12 MGD
Wappingers Falls · 2 mi away
0.08 MGD
Wappingers Falls · 4 mi away
0.03 MGD
Wappingers Falls · 4 mi away
0.08 MGD
Fishkill · 6 mi away
0.56 MGD
Poughkeepsie · 6 mi away
0.02 MGD
Hopewell Junction · 7 mi away
0.1 MGD
Poughkeepsie · 8 mi away
7.39 MGD
Tri-Municipal WWTP: 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 April 5, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Biosolids · Filter press · all terms