Mount Sterling WWTP
275 South London St, Mount Sterling, OH 43143 · Madison County · Publicly Owned Treatment Works
- Average flow
- 0.45 MGD
- Design flow
- 1 MGD
- NPDES permit
- OH0026654
- Administratively continued
- Permit expires
- May 2026
- Population served
- 1,906
- CWNS 2022
Mount Sterling WWTP is a publicly owned wastewater treatment works in Mount Sterling, Madison County, Ohio treating an average of 0.45 million gallons per day against a permitted design capacity of 1 MGD, serving about 1,906 residents. It discharges under NPDES permit OH0026654 (administratively continued), which expires in May 2026, with 7 recorded violations in the last three years.
Treatment technology
2 treatment structures and unit processes identified at Mount Sterling WWTP.
Available with a free Klarifi account
See the full treatment train at Mount Sterling WWTP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 7
- Effluent violations
- 7
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for Mount Sterling WWTP, with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at Mount Sterling WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Ohio
Williamsport · 5 mi away
0.03 MGD
Orient · 8 mi away
0.76 MGD
Williamsport · 9 mi away
0.0065 MGD
Bloomingburg · 11 mi away
0.11 MGD
Columbus · 11 mi away
0.26 MGD
Grove City · 11 mi away
0.00067 MGD
New Holland · 12 mi away
0.11 MGD
Williamsport · 12 mi away
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Mount Sterling 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 November 29, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · WWTP · Biosolids · all terms