Greenport Power Plant
Greenport, NY · Suffolk County · Publicly Owned Treatment Works
- Average flow
- 0.36 MGD
- Design flow
- 0.65 MGD
- NPDES permit
- NY0020079
- Administratively continued
- Permit expires
- July 2018
- Population served
- 2,172
- CWNS 2022
Greenport Power Plant is a publicly owned wastewater treatment plant in Greenport, Suffolk County, New York treating an average of 0.36 million gallons per day against a permitted design capacity of 0.65 MGD, serving about 2,172 residents. It discharges under NPDES permit NY0020079 (administratively continued), which expires in July 2018, with 0 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 0
- Effluent violations
- 0
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Greenport Power Plant.
No verified contacts on file yet
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Nearby wastewater treatment plants in New York
Sag Harbor · 8 mi away
0.08 MGD
Riverhead · 19 mi away
0.97 MGD
Shirley · 33 mi away
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Farmingville · 40 mi away
0.02 MGD
Stony Brook · 41 mi away
2.09 MGD
Patchogue · 42 mi away
0.38 MGD
Kings Park · 47 mi away
0.24 MGD
Ocean Beach · 52 mi away
0.17 MGD
Greenport Power Plant: 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 June 10, 2025.