Put-In-Bay STP
Concord Ave, Put In Bay, OH 43456 · Ottawa County · Publicly Owned Treatment Works
- Average flow
- 0.09 MGD
- Design flow
- 1 MGD
- NPDES permit
- OH0022322
- Effective
- Permit expires
- June 2027
- Population served
- 860
- CWNS 2022
Put-In-Bay STP is a publicly owned wastewater treatment works in Put In Bay, Ottawa County, Ohio treating an average of 0.09 million gallons per day against a permitted design capacity of 1 MGD, serving about 860 residents. It discharges under NPDES permit OH0022322 (effective), which expires in June 2027, with 1 recorded violation in the last three years.
Treatment technology
Treatment structures and unit processes at Put-In-Bay STP.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 1
- Effluent violations
- 1
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Put-In-Bay STP.
No verified contacts on file yet
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Nearby wastewater treatment plants in Ohio
Put-In- Bay · 1 mi away
0.0028 MGD
Kelleys Island · 6 mi away
0.0026 MGD
Port Clinton · 8 mi away
0.51 MGD
Port Clinton · 9 mi away
1.11 MGD
Port Clinton · 11 mi away
1.93 MGD
Sandusky · 14 mi away
11.27 MGD
Oak Harbor · 15 mi away
0.0059 MGD
Oak Harbor · 19 mi away
0.0048 MGD
Put-In-Bay 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 February 28, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Centrate · Ozonation · all terms