Milan S D Wastewater Treatment Facility
5445 Sanitary Rd, Milan, WI 54411 · Marathon County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- 0.06 MGD
- NPDES permit
- WI0031500
- Expired
- Permit expires
- June 2023
- Population served
- 196
- CWNS 2022
Milan S D Wastewater Treatment Facility is a publicly owned wastewater treatment works in Milan, Marathon County, Wisconsin, serving about 196 residents. It discharges under NPDES permit WI0031500 (expired), which expires in June 2023, with 0 recorded violations in the last three years.
Treatment technology
One treatment structure or unit process identified at Milan S D Wastewater Treatment Facility.
Available with a free Klarifi account
See the full treatment train at Milan S D Wastewater Treatment Facility: structures, unit processes and planned upgrades, with exact unit counts.
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 Milan S D Wastewater Treatment Facility.
No verified contacts on file yet
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Nearby wastewater treatment plants in Wisconsin
Athens · 6 mi away
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Stetsonville · 9 mi away
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Colby · 10 mi away
0.19 MGD
Edgar · 11 mi away
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Fenwood · 12 mi away
0.05 MGD
Unity · 12 mi away
0.05 MGD
Curtiss · 13 mi away
—
Stratford · 13 mi away
0.14 MGD
Milan S D Wastewater Treatment Facility: 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 12, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · WWTP · Biosolids · all terms