Hammond (v) STP
Hammond, NY · Saint Lawrence County · Publicly Owned Treatment Works
- Average flow
- 0.01 MGD
- Design flow
- 0.04 MGD
- NPDES permit
- NY0033561
- Effective
- Permit expires
- October 2028
- Population served
- 314
- CWNS 2022
Hammond (v) STP is a publicly owned wastewater treatment works in Hammond, Saint Lawrence County, New York treating an average of 0.01 million gallons per day against a permitted design capacity of 0.04 MGD, serving about 314 residents. Treatment on site includes aerated lagoons. It discharges under NPDES permit NY0033561 (effective), which expires in October 2028, with 29 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Aerated lagoons
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Compliance snapshot (last 3 years)
- Total violations
- 29
- Effluent violations
- 29
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for Hammond (v) STP, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Hammond (v) STP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in New York
Gouverneur · 13 mi away
0.52 MGD
Alexandria Bay · 13 mi away
0.1 MGD
Theresa · 17 mi away
0.02 MGD
Alexandria Bay · 18 mi away
0.07 MGD
Antwerp · 18 mi away
0.02 MGD
Ogdensburg · 20 mi away
1.6 MGD
Philadelphia · 20 mi away
0.17 MGD
Dekalb Junction · 20 mi away
0.02 MGD
Hammond (v) 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 September 26, 2025.