Dexter (v) STP
Water Street, Dexter, NY 13634 · Jefferson County · Publicly Owned Treatment Works
- Average flow
- 0.26 MGD
- Design flow
- 0.25 MGD
- NPDES permit
- NY0031461
- Effective
- Permit expires
- August 2031
- Population served
- 952
- CWNS 2022
Dexter (v) STP is a publicly owned wastewater treatment works in Dexter, Jefferson County, New York treating an average of 0.26 million gallons per day against a permitted design capacity of 0.25 MGD, serving about 952 residents. It discharges under NPDES permit NY0031461 (effective), which expires in August 2031, with 16 recorded violations in the last three years.
Treatment technology
One treatment structure or unit process identified at Dexter (v) STP.
Available with a free Klarifi account
See the full treatment train at Dexter (v) STP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 16
- Effluent violations
- 16
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Dexter (v) STP.
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Nearby wastewater treatment plants in New York
Brownville · 3 mi away
0.4 MGD
Sackets Harbor · 6 mi away
0.37 MGD
Watertown · 6 mi away
9.41 MGD
Chaumont · 6 mi away
0.06 MGD
Watertown · 7 mi away
0.05 MGD
Depauville · 9 mi away
0.02 MGD
Evans Mills · 13 mi away
0.06 MGD
Lafargeville · 13 mi away
0.07 MGD
Dexter (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 October 26, 2026; facility record last updated November 28, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Sludge dewatering · Biological nutrient removal · all terms