Penn Yan (v) STP
Sherman Street, Penn Yan, NY 14527 · Yates County · Publicly Owned Treatment Works
- Average flow
- 1.14 MGD
- Design flow
- 1.8 MGD
- NPDES permit
- NY0029726
- Administratively continued
- Permit expires
- February 2024
- Population served
- 7,138
- CWNS 2022
Penn Yan (v) STP is a publicly owned wastewater treatment works in Penn Yan, Yates County, New York treating an average of 1.14 million gallons per day against a permitted design capacity of 1.8 MGD, serving about 7,138 residents. It discharges under NPDES permit NY0029726 (administratively continued), which expires in February 2024, with 22 recorded violations in the last three years. EPA has recorded 3 formal enforcement actions naming the plant, the latest in April 2009.
Treatment technology
2 treatment structures and unit processes identified at Penn Yan (v) STP.
Available with a free Klarifi account
See the full treatment train at Penn Yan (v) STP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 22
- Effluent violations
- 18
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
EPA enforcement history
Federal civil enforcement cases, compliance inspections and informal actions recorded for Penn Yan (v) STP in EPA's ICIS system.
- Formal actions
- 3
- 0 since FY2020
- Penalties assessed
- $1,300
- all cases
- Compliance actions
- $2,000
- required by EPA orders
- EPA inspections
- 0
- none on record
Latest case · Apr 2009
Village of Penn Yan Wastewater Treatment Plant
Administrative order · CWA, Sewage Sludge Disposal · Unilateral Administrative Order Without Adjudication · Compliance actions $1,000
EPA's description of the case:
“Village of Penn Yan WWTP did not submit their sixteenth annual sludge report by February 19, 2009.”
Source: EPA ECHO, civil enforcement case 02-2009-3065.
Full case history with a free Klarifi account
Every action against Penn Yan (v) STP with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
2 verified contacts for Penn Yan (v) STP, with validated emails and direct phone numbers.
Unlock 2 verified contacts
Names, validated emails and direct phone numbers for decision-makers at Penn Yan (v) STP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in New York
Willard · 8 mi away
0.3 MGD
Dundee · 10 mi away
0.25 MGD
Romulus · 11 mi away
0.34 MGD
Gorham · 11 mi away
0.04 MGD
Rushville · 12 mi away
0.07 MGD
Geneva · 16 mi away
3.49 MGD
Interlaken · 16 mi away
0.03 MGD
Aurora · 18 mi away
0.11 MGD
Penn Yan (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 May 22, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Biosolids · Filter press · all terms