Stony Point (t) STP
Stony Point, NY · Rockland County · Publicly Owned Treatment Works
- Average flow
- 0.84 MGD
- Design flow
- 1 MGD
- NPDES permit
- NY0028851
- Effective
- Permit expires
- November 2029
- Population served
- 12,986
- CWNS 2022
Stony Point (t) STP is a publicly owned wastewater treatment works in Stony Point, Rockland County, New York treating an average of 0.84 million gallons per day against a permitted design capacity of 1 MGD, serving about 12,986 residents. It discharges under NPDES permit NY0028851 (effective), which expires in November 2029, with 17 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
- 17
- Effluent violations
- 17
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Stony Point (t) STP.
No verified contacts on file yet
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Nearby wastewater treatment plants in New York
West Haverstraw · 1 mi away
3.6 MGD
Buchanan · 3 mi away
0.24 MGD
Peekskill · 6 mi away
5.17 MGD
Ossining · 7 mi away
3.32 MGD
Fort Montgomery · 7 mi away
0.07 MGD
Yorktown Hgts · 11 mi away
1 MGD
Harriman · 11 mi away
4.53 MGD
Highland Mills · 11 mi away
0.02 MGD
Stony Point (t) 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 December 24, 2024.