Bay Park Sewage Treatment Plant
East Rockaway, NY · Nassau County · Publicly Owned Treatment Works
- Average flow
- 48.5 MGD
- Design flow
- 70 MGD
- NPDES permit
- NY0026450
- Administratively continued
- Permit expires
- January 2026
- Population served
- 584,105
- CWNS 2022
Bay Park Sewage Treatment Plant is a publicly owned wastewater treatment works in East Rockaway, Nassau County, New York treating an average of 48.5 million gallons per day against a permitted design capacity of 70 MGD, serving about 584,105 residents. Treatment on site includes clarifiers, biogas balloons. It discharges under NPDES permit NY0026450 (administratively continued), which expires in January 2026, with 4 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
- 4
- Effluent violations
- 2
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
5 verified contacts for Bay Park Sewage Treatment Plant, with validated emails and direct phone numbers.
Unlock 5 verified contacts (2 more than shown)
Names, validated emails and direct phone numbers for decision-makers at Bay Park Sewage Treatment Plant, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in New York
Long Beach · 3 mi away
4.53 MGD
Atlantic Beach · 5 mi away
0.53 MGD
Jamaica · 8 mi away
70 MGD
Wantagh · 8 mi away
62.2 MGD
Rockaway Park · 9 mi away
20 MGD
Great Neck · 11 mi away
0.92 MGD
Brooklyn · 11 mi away
43 MGD
Great Neck · 12 mi away
2.5 MGD
Bay Park Sewage Treatment 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 January 23, 2025.