Middletown City Of Sewage Treatment Plt
159 Dolson Avenue, Middletown, NY 10940 · Orange County · Publicly Owned Treatment Works
- Average flow
- 4.84 MGD
- Design flow
- 8.5 MGD
- NPDES permit
- NY0026328
- Administratively continued
- Permit expires
- May 2017
- Population served
- 30,560
- CWNS 2022
Middletown City Of Sewage Treatment Plt is a publicly owned wastewater treatment works in Middletown, Orange County, New York treating an average of 4.84 million gallons per day against a permitted design capacity of 8.5 MGD, serving about 30,560 residents. It discharges under NPDES permit NY0026328 (administratively continued), which expires in May 2017, with 1 recorded violation in the last three years. EPA has recorded 6 formal enforcement actions naming the plant, the latest in June 2021.
Treatment technology
3 treatment structures and unit processes identified at Middletown City Of Sewage Treatment Plt.
Available with a free Klarifi account
See the full treatment train at Middletown City Of Sewage Treatment Plt: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 1
- 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 Middletown City Of Sewage Treatment Plt in EPA's ICIS system.
- Formal actions
- 6
- 0 since FY2020
- Compliance actions
- $100,882
- required by EPA orders
- EPA inspections
- 0
- none on record
Latest case · Jun 2021
City of Middletown
Administrative order · CWA, Effluent Limitations - NPDES Toxic & Pretreatment Effluent Standards · Unilateral Administrative Order Without Adjudication · Compliance actions $882
EPA's description of the case:
“Respondent failed to implement its industrial pretreatment program as approved and in accordance with the General Pretreatment Regulations at 40 CFR 403.”
Source: EPA ECHO, civil enforcement case 02-2019-3026.
Full case history with a free Klarifi account
Every action against Middletown City Of Sewage Treatment Plt with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
1 verified contact for Middletown City Of Sewage Treatment Plt, with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at Middletown City Of Sewage Treatment Plt, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in New York
Slate Hill · 3 mi away
0.04 MGD
Slate Hill · 3 mi away
0.01 MGD
Goshen · 4 mi away
1.1 MGD
Florida · 7 mi away
0.21 MGD
Otisville · 7 mi away
0.03 MGD
Montgomery · 10 mi away
0.15 MGD
Montgomery · 12 mi away
1.26 MGD
Montgomery · 12 mi away
0.36 MGD
Middletown City Of Sewage Treatment Plt: 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 September 2, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Filter press · FOG · all terms