Columbus Grove WWTP
113 East Sycamore Street, Columbus Grove, OH 45830 · Putnam County · Publicly Owned Treatment Works
- Average flow
- 0.24 MGD
- Design flow
- 0.82 MGD
- NPDES permit
- OH0024759
- Effective
- Permit expires
- March 2029
- Population served
- 2,160
- CWNS 2022
Columbus Grove WWTP is a publicly owned wastewater treatment works in Columbus Grove, Putnam County, Ohio treating an average of 0.24 million gallons per day against a permitted design capacity of 0.82 MGD, serving about 2,160 residents. It discharges under NPDES permit OH0024759 (effective), which expires in March 2029, with 146 recorded violations in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in November 2023.
Treatment technology
2 treatment structures and unit processes identified at Columbus Grove WWTP.
Available with a free Klarifi account
See the full treatment train at Columbus Grove WWTP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 146
- Effluent violations
- 146
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 Columbus Grove WWTP in EPA's ICIS system.
- Formal actions
- 1
- 1 since FY2020
- Compliance actions
- $50,000
- required by EPA orders
- EPA inspections
- 0
- none on record
Latest case · Nov 2023
Columbus Grove WWTP
Administrative order · CWA, NPDES Permit Violations · Final Order Issued · Compliance actions $50,000
EPA's description of the case:
“AOC addresses effluent violations to return facility to compliance.”
Source: EPA ECHO, civil enforcement case 05-2024-0306.
Full case history with a free Klarifi account
Every action against Columbus Grove WWTP with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
1 verified contact for Columbus Grove WWTP, with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at Columbus Grove WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Ohio
Bluffton · 1 mi away
0.59 MGD
Elida · 3 mi away
0.009 MGD
Beaverdam · 5 mi away
0.59 MGD
Pandora · 6 mi away
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Rawson · 7 mi away
—
Ada · 10 mi away
0.77 MGD
Lima · 10 mi away
0.0039 MGD
Lafayette · 10 mi away
0.02 MGD
Columbus Grove 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 April 5, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Anaerobic digester · Lift station · all terms