Delphos WWTP
Delphos, OH · Allen County · Publicly Owned Treatment Works
- Average flow
- 0.92 MGD
- Design flow
- 3.83 MGD
- NPDES permit
- OH0024929
- Effective
- Permit expires
- January 2029
- Population served
- 7,095
- CWNS 2022
Delphos WWTP is a publicly owned wastewater treatment works in Delphos, Allen County, Ohio treating an average of 0.92 million gallons per day against a permitted design capacity of 3.83 MGD, serving about 7,095 residents. It discharges under NPDES permit OH0024929 (effective), which expires in January 2029, with 105 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 105
- Effluent violations
- 17
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Delphos WWTP.
No verified contacts on file yet
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Nearby wastewater treatment plants in Ohio
Middle Point · 5 mi away
0.04 MGD
Fort Jennings · 5 mi away
0.04 MGD
Ottoville · 5 mi away
0.13 MGD
Elida · 9 mi away
0.25 MGD
Spencerville · 10 mi away
0.23 MGD
Elida · 10 mi away
0.58 MGD
Kalida · 11 mi away
0.11 MGD
Van Wert · 13 mi away
1.44 MGD
Delphos 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 September 11, 2026; facility record last updated May 22, 2025.