Mill Creek Estates WWTP
15870 Valley View Dr., Marysville, OH 43040 · Union County · Publicly Owned Treatment Works
- Average flow
- 0.06 MGD
- Design flow
- 0.11 MGD
- NPDES permit
- OH0070815
- Effective
- Permit expires
- February 2027
- Population served
- 1,083
- CWNS 2022
Mill Creek Estates WWTP is a publicly owned wastewater treatment works in Marysville, Union County, Ohio treating an average of 0.06 million gallons per day against a permitted design capacity of 0.11 MGD, serving about 1,083 residents. It discharges under NPDES permit OH0070815 (effective), which expires in February 2027, with 0 recorded violations in the last three years.
Treatment technology
Treatment structures and unit processes at Mill Creek Estates WWTP.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 0
- Effluent violations
- 0
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Mill Creek Estates WWTP.
No verified contacts on file yet
Klarifi verifies plant and municipal decision-makers continuously. Start a free trial to browse contacts at nearby plants and flag this one for verification.
Nearby wastewater treatment plants in Ohio
Marysville · 3 mi away
5.36 MGD
Marysville · 5 mi away
0.01 MGD
Marysville · 5 mi away
0.02 MGD
Ostrander · 5 mi away
0.06 MGD
Plain City · 7 mi away
0.0036 MGD
Milford Center · 7 mi away
0.0049 MGD
Plain City · 9 mi away
0.83 MGD
Powell · 10 mi away
0.05 MGD
Mill Creek Estates 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 September 30, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Lift station · Sludge dewatering · all terms