Lexington WWTP
Lexington, OH · Richland County · Publicly Owned Treatment Works
- Average flow
- 0.47 MGD
- Design flow
- 1.5 MGD
- NPDES permit
- OH0020257
- Effective
- Permit expires
- April 2031
- Population served
- 4,848
- CWNS 2022
Lexington WWTP is a publicly owned wastewater treatment works in Lexington, Richland County, Ohio treating an average of 0.47 million gallons per day against a permitted design capacity of 1.5 MGD, serving about 4,848 residents. Treatment on site includes clarifiers, aerated lagoons, uncovered lagoons. It discharges under NPDES permit OH0020257 (effective), which expires in April 2031, with 1 recorded violation in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
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 Lexington WWTP.
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Nearby wastewater treatment plants in Ohio
Mansfield · 7 mi away
6.67 MGD
Lucas · 9 mi away
0.07 MGD
Butler · 10 mi away
0.25 MGD
Crestline · 13 mi away
0.4 MGD
Perrysville · 13 mi away
0.00037 MGD
Ashland · 13 mi away
0.0058 MGD
Galion · 13 mi away
1.42 MGD
Fredericktown · 13 mi away
0.14 MGD
Lexington 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 8, 2025.