Muddy Creek WWTP
6125 River Road, Cincinnati, OH 45233 · Hamilton County · Publicly Owned Treatment Works
- Average flow
- 12.73 MGD
- Design flow
- 15 MGD
- NPDES permit
- OH0025470
- Effective
- Permit expires
- March 2030
- Population served
- 80,528
- CWNS 2022
Muddy Creek WWTP is a publicly owned wastewater treatment works in Cincinnati, Hamilton County, Ohio treating an average of 12.73 million gallons per day against a permitted design capacity of 15 MGD, serving about 80,528 residents. It discharges under NPDES permit OH0025470 (effective), which expires in March 2030, with 20 recorded violations in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in May 2025.
Treatment technology
2 treatment structures and unit processes identified at Muddy Creek WWTP.
Available with a free Klarifi account
See the full treatment train at Muddy Creek WWTP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 20
- Effluent violations
- 8
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 Muddy Creek WWTP in EPA's ICIS system.
- Formal actions
- 1
- 0 since FY2020
- Penalties assessed
- $1.2M
- all cases
- Compliance actions
- $3,290M
- required by EPA orders
- EPA inspections
- 0
- none on record
Latest case · May 2025
HAMILTON COUNTY
Judicial case · CWA, NPDES Permit Violations · Final Order Entered · Penalty $1.2M · Compliance actions $3,290M · The case also names 1 other plant, and its amounts cover all of them
Source: EPA ECHO, civil enforcement case 05-1998-0750.
Full case history with a free Klarifi account
Every action against Muddy Creek WWTP with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
3 verified contacts for Muddy Creek WWTP, with validated emails and direct phone numbers.
Unlock 3 verified contacts
Names, validated emails and direct phone numbers for decision-makers at Muddy Creek WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Ohio
North Bend · 5 mi away
0.88 MGD
Cincinnati · 5 mi away
0.00035 MGD
Cincinnati · 6 mi away
0.01 MGD
Cincinnati · 6 mi away
0.02 MGD
Cleves · 8 mi away
0.0012 MGD
Cleves · 8 mi away
3.21 MGD
Cincinnati · 10 mi away
0.0011 MGD
Harrison · 11 mi away
0.0053 MGD
Muddy Creek 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 24, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Activated sludge · Oxidation ditch · all terms