New Windsor STP
Newburgh, NY · Orange County · Publicly Owned Treatment Works
- Average flow
- 3 MGD
- Design flow
- 5 MGD
- NPDES permit
- NY0022446
- Effective
- Permit expires
- December 2028
- Population served
- 24,144
- CWNS 2022
New Windsor STP is a publicly owned wastewater treatment works in Newburgh, Orange County, New York treating an average of 3 million gallons per day against a permitted design capacity of 5 MGD, serving about 24,144 residents. Treatment on site includes clarifiers, biogas balloons. It discharges under NPDES permit NY0022446 (effective), which expires in December 2028, with 130 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Compliance snapshot (last 3 years)
- Total violations
- 130
- Effluent violations
- 109
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
2 verified contacts for New Windsor STP, with validated emails and direct phone numbers.
Unlock 2 verified contacts
Names, validated emails and direct phone numbers for decision-makers at New Windsor STP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in New York
Cornwall · 1 mi away
0.57 MGD
Cornwall · 1 mi away
0.04 MGD
Newburgh · 3 mi away
5.4 MGD
Beacon · 3 mi away
2.57 MGD
Cold Spring · 4 mi away
0.2 MGD
Washingtonville · 7 mi away
0.39 MGD
Washingtonville · 8 mi away
0.0054 MGD
Fishkill · 8 mi away
0.41 MGD
New Windsor STP: 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 May 22, 2025.