Erie County Southtowns Sewage Treatment Plant
3690 Lake Shore Rd, Buffalo, NY 14219 · Erie County · Publicly Owned Treatment Works
- Average flow
- 19.51 MGD
- Design flow
- 26 MGD
- NPDES permit
- NY0095401
- Effective
- Permit expires
- September 2031
- Population served
- 139,037
- CWNS 2022
Erie County Southtowns Sewage Treatment Plant is a publicly owned wastewater treatment works in Buffalo, Erie County, New York treating an average of 19.51 million gallons per day against a permitted design capacity of 26 MGD, serving about 139,037 residents. It discharges under NPDES permit NY0095401 (effective), which expires in September 2031, with 61 recorded violations in the last three years. EPA has recorded 3 formal enforcement actions naming the plant, the latest in September 2006.
Treatment technology
One treatment structure or unit process identified at Erie County Southtowns Sewage Treatment Plant.
Available with a free Klarifi account
See the full treatment train at Erie County Southtowns Sewage Treatment Plant: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 61
- Effluent violations
- 59
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 Erie County Southtowns Sewage Treatment Plant in EPA's ICIS system.
- Formal actions
- 3
- 0 since FY2020
- Compliance actions
- $2,000
- required by EPA orders
- EPA inspections
- 2
- latest Dec 2007
Latest case · Sep 2006
Erie County/Southtowns STP/ECSD No. 3
Administrative order · CWA, Sewage Sludge Disposal · Unilateral Administrative Order Without Adjudication · Compliance actions $1,000
EPA's description of the case:
“Facility failed to submit CEMS total hydrocarbons in the exit gas from a sewage sludge incinerator stack during the months of January and February 2005.”
Source: EPA ECHO, civil enforcement case 02-2006-3087.
Full case history with a free Klarifi account
Every action against Erie County Southtowns Sewage Treatment Plant with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
Decision-makers at Erie County Southtowns Sewage Treatment Plant.
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Nearby wastewater treatment plants in New York
Buffalo · 10 mi away
—
Elma · 11 mi away
0.01 MGD
Elma · 11 mi away
0.0044 MGD
Elma · 12 mi away
0.0089 MGD
Elma · 13 mi away
0.04 MGD
Angola · 14 mi away
6.58 MGD
Tonawanda · 15 mi away
21.03 MGD
Alden · 16 mi away
0.02 MGD
Erie County Southtowns Sewage Treatment Plant: 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 21, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Anaerobic digester · Lift station · all terms