Cadiz WWTP
Cadiz, OH · Harrison County · Publicly Owned Treatment Works
- Average flow
- 0.31 MGD
- Design flow
- 0.6 MGD
- NPDES permit
- OH0024295
- Effective
- Permit expires
- February 2029
- Population served
- 3,042
- CWNS 2022
Cadiz WWTP is a publicly owned wastewater treatment works in Cadiz, Harrison County, Ohio treating an average of 0.31 million gallons per day against a permitted design capacity of 0.6 MGD, serving about 3,042 residents. Treatment on site includes clarifiers. It discharges under NPDES permit OH0024295 (effective), which expires in February 2029, with 257 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Clarifiers
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Compliance snapshot (last 3 years)
- Total violations
- 257
- Effluent violations
- 257
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Cadiz WWTP.
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Nearby wastewater treatment plants in Ohio
Adena · 6 mi away
0.15 MGD
Hopedale · 6 mi away
0.09 MGD
Flushing · 8 mi away
0.15 MGD
Jewett · 9 mi away
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Smithfield · 10 mi away
0.18 MGD
Dillonvale · 11 mi away
0.04 MGD
St Clairsville · 11 mi away
0.38 MGD
St Clairsville · 11 mi away
0.33 MGD
Cadiz 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 November 29, 2025.