New Windsor STP
Caesars Lane, Newburgh, NY 12550 · Orange County · Publicly Owned Treatment Works
- Average flow
- 4.15 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 4.15 million gallons per day against a permitted design capacity of 5 MGD, serving about 24,144 residents. It discharges under NPDES permit NY0022446 (effective), which expires in December 2028, with 125 recorded violations in the last three years. EPA has recorded 4 formal enforcement actions naming the plant, the latest in January 2018.
Treatment technology
2 treatment structures and unit processes identified at New Windsor STP.
Available with a free Klarifi account
See the full treatment train at New Windsor STP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 125
- Effluent violations
- 104
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 New Windsor STP in EPA's ICIS system.
- Formal actions
- 4
- 0 since FY2020
- Compliance actions
- $11,500
- required by EPA orders
- EPA inspections
- 0
- none on record
Latest case · Jan 2018
Town of New Windsor
Administrative order · CWA, NPDES Permit Violations · Final Order No Penalty · Compliance actions $1,500
EPA's description of the case:
“This AO has been developed to enforce SPDES permit requirements regarding proper O&M of the sanitary sewer system. As such, there is no associated pollutant loading reduction. Injunctive relief…”
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Source: EPA ECHO, civil enforcement case 02-2018-3002.
Full case history with a free Klarifi account
Every action against New Windsor STP with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
2 verified contacts for New Windsor STP, with validated emails and direct phone numbers.
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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
1.07 MGD
Cornwall · 1 mi away
0.06 MGD
Newburgh · 3 mi away
6.73 MGD
Beacon · 3 mi away
3.17 MGD
Cold Spring · 4 mi away
0.22 MGD
Washingtonville · 7 mi away
0.5 MGD
Highland Falls · 7 mi away
0.92 MGD
Washingtonville · 8 mi away
0.0041 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 October 26, 2026; facility record last updated May 22, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Equalization tank · Centrate · all terms