Upper Sandusky WWTP
Indian Mill Rd., Upper Sandusky, OH 43351 · Wyandot County · Publicly Owned Treatment Works
- Average flow
- 1.51 MGD
- Design flow
- 2 MGD
- NPDES permit
- OH0020001
- Administratively continued
- Permit expires
- April 2026
- Population served
- 6,948
- CWNS 2022
Upper Sandusky WWTP is a publicly owned wastewater treatment works in Upper Sandusky, Wyandot County, Ohio treating an average of 1.51 million gallons per day against a permitted design capacity of 2 MGD, serving about 6,948 residents. It discharges under NPDES permit OH0020001 (administratively continued), which expires in April 2026, with 3 recorded violations in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in March 2000.
Treatment technology
Treatment structures and unit processes at Upper Sandusky WWTP.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 3
- Effluent violations
- 3
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 Upper Sandusky WWTP in EPA's ICIS system.
- Formal actions
- 1
- 0 since FY2020
- Penalties assessed
- $22,500
- all cases
- EPA inspections
- 0
- none on record
Latest case · Mar 2000
UPPER SANDUSKY, CITY OF WWTP
Administrative order · CWA, Sewage Sludge Disposal · Final Order With Penalty · Penalty $22,500
Source: EPA ECHO, civil enforcement case 05-1999-0090.
Full case history with a free Klarifi account
Every action against Upper Sandusky WWTP with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
2 verified contacts for Upper Sandusky WWTP, with validated emails and direct phone numbers.
Unlock 2 verified contacts
Names, validated emails and direct phone numbers for decision-makers at Upper Sandusky WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Ohio
Carey · 4 mi away
0.0012 MGD
Sandusky · 5 mi away
0.0033 MGD
Carey · 7 mi away
0.0012 MGD
Nevada · 7 mi away
0.04 MGD
Carey · 9 mi away
0.68 MGD
Sycamore · 9 mi away
0.04 MGD
Forest · 13 mi away
0.1 MGD
Bucyrus · 14 mi away
0.0024 MGD
Upper Sandusky 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 September 27, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · FOG · Equalization tank · all terms