Oneonta WWTP
11 Silas Lane, Oneonta, NY 13820 · Otsego County · Publicly Owned Treatment Works
- Average flow
- 1.99 MGD
- Design flow
- 4 MGD
- NPDES permit
- NY0031151
- Effective
- Permit expires
- July 2028
- Population served
- 18,893
- CWNS 2022
Oneonta WWTP is a publicly owned wastewater treatment works in Oneonta, Otsego County, New York treating an average of 1.99 million gallons per day against a permitted design capacity of 4 MGD, serving about 18,893 residents. It discharges under NPDES permit NY0031151 (effective), which expires in July 2028, with 34 recorded violations in the last three years. EPA has recorded 2 formal enforcement actions naming the plant, the latest in April 2009.
Treatment technology
3 treatment structures and unit processes identified at Oneonta WWTP.
Available with a free Klarifi account
See the full treatment train at Oneonta WWTP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 34
- Effluent violations
- 34
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 Oneonta WWTP in EPA's ICIS system.
- Formal actions
- 2
- 0 since FY2020
- Penalties assessed
- $1,000
- all cases
- Compliance actions
- $1,000
- required by EPA orders
- EPA inspections
- 0
- none on record
Latest case · Apr 2009
City of Oneonta Wastewater Treatment Plant
Administrative order · CWA, Sewage Sludge Disposal · Unilateral Administrative Order Without Adjudication · Compliance actions $1,000
EPA's description of the case:
“City of Oneonta WWTP did not submit their sixteenth annual sludge report by February 19, 2009.”
Source: EPA ECHO, civil enforcement case 02-2009-3056.
Full case history with a free Klarifi account
Every action against Oneonta WWTP with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Capital improvement projects in Oneonta
Oneonta's capital improvement plan lists 12 water, sewer and wastewater line items worth $3M starting 2025–2028. The largest budgeted items are shown here.
All water and sewer capital projects in Oneonta →
| Project | Budget | Years |
|---|---|---|
| Water Distribution System Improvements | $950,000 | 2026–2029 |
| Sanitary Sewer Collection System Inflow and Infiltration Reduction | $500,000 | 2027–2028 |
| Sanitary Sewer Collection System Improvements | $325,000 | 2026–2029 |
| Wastewater Facilities Improvements | $300,000 | 2028–2029 |
| Union Street (Olin to Spruce) and Spruce Street (Union to East) Sanitary Sewer Replacement | $200,000 | 2025–2025 |
Full project details — scope, funding source, engineering consultant and the decision-makers behind each project — are available in Klarifi, along with similar wastewater capital projects in other cities.
Key contacts
10 verified contacts for Oneonta WWTP, with validated emails and direct phone numbers.
Unlock 10 verified contacts (7 more than shown)
Names, validated emails and direct phone numbers for decision-makers at Oneonta WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in New York
Sidney · 18 mi away
0.59 MGD
Cooperstown · 19 mi away
0.47 MGD
Walton · 19 mi away
0.88 MGD
Norwich · 22 mi away
1.17 MGD
Stamford · 24 mi away
0.34 MGD
Oxford · 25 mi away
0.07 MGD
Sherburne · 26 mi away
0.36 MGD
Richfield Springs · 29 mi away
0.25 MGD
Oneonta WWTP: 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 March 6, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Tertiary treatment · Significant industrial user · all terms