Fenwick Marina
10195 W State Rt 2, Oak Harbor, OH 43449 · Ottawa County · Publicly Owned Treatment Works
- Average flow
- 0.0059 MGD
- Design flow
- —
- NPDES permit
- OH0125784
- Effective
- Permit expires
- October 2026
- Population served
- —
- CWNS 2022
Fenwick Marina is a publicly owned wastewater treatment plant in Oak Harbor, Ottawa County, Ohio treating an average of 0.0059 million gallons per day. It discharges under NPDES permit OH0125784 (effective), which expires in October 2026, with 25 recorded violations in the last three years.
Treatment technology
One treatment structure or unit process identified at Fenwick Marina.
Available with a free Klarifi account
See the full treatment train at Fenwick Marina: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 25
- Effluent violations
- 25
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Fenwick Marina.
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0.86 MGD
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Port Clinton · 9 mi away
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Lindsey · 13 mi away
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Port Clinton · 13 mi away
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Genoa · 14 mi away
0.32 MGD
Port Clinton · 15 mi away
1.11 MGD
Fenwick Marina: 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 April 5, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Lift station · Sludge dewatering · all terms