Milan WWTP
Milan, MI · Washtenaw County · Publicly Owned Treatment Works
- Average flow
- 0.83 MGD
- Design flow
- —
- NPDES permit
- MI0021571
- Effective
- Permit expires
- October 2029
- Population served
- 4,867
- CWNS 2022
Milan WWTP is a publicly owned wastewater treatment works in Milan, Washtenaw County, Michigan treating an average of 0.83 million gallons per day, serving about 4,867 residents. Treatment on site includes clarifiers, carrousels / oxidation ditches, biogas silos. It discharges under NPDES permit MI0021571 (effective), which expires in October 2029, with 47 recorded violations 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
- 47
- Effluent violations
- 23
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
13 verified contacts for Milan WWTP, with validated emails and direct phone numbers.
Unlock 13 verified contacts (10 more than shown)
Names, validated emails and direct phone numbers for decision-makers at Milan WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Michigan
Saline · 8 mi away
1.1 MGD
Britton · 9 mi away
—
Ypsilanti · 12 mi away
23.05 MGD
Saline · 12 mi away
0.03 MGD
Petersburg · 12 mi away
0.08 MGD
Ann Arbor · 13 mi away
13.6 MGD
Ida · 13 mi away
—
Tecumseh · 14 mi away
0.6 MGD
Milan 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 February 27, 2025.