Marion Wastewater Treatment Fa
725 East Sherman Street, Marion, WI 54950 · Waupaca County · Publicly Owned Treatment Works
- Average flow
- 0.28 MGD
- Design flow
- 0.24 MGD
- NPDES permit
- WI0020770
- Expired
- Permit expires
- June 2023
- Population served
- 1,324
- CWNS 2022
Marion Wastewater Treatment Fa is a publicly owned wastewater treatment works in Marion, Waupaca County, Wisconsin treating an average of 0.28 million gallons per day against a permitted design capacity of 0.24 MGD, serving about 1,324 residents. It discharges under NPDES permit WI0020770 (expired), which expires in June 2023, with 2 recorded violations in the last three years.
Treatment technology
2 treatment structures and unit processes identified at Marion Wastewater Treatment Fa.
Available with a free Klarifi account
See the full treatment train at Marion Wastewater Treatment Fa: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 2
- Effluent violations
- 2
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Marion Wastewater Treatment Fa.
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Nearby wastewater treatment plants in Wisconsin
Caroline · 3 mi away
0.03 MGD
Clintonville · 7 mi away
0.64 MGD
Gresham · 13 mi away
0.07 MGD
Black Creek · 13 mi away
0.02 MGD
Bowler · 14 mi away
0.02 MGD
Shawano · 14 mi away
2.22 MGD
Manawa · 14 mi away
0.12 MGD
Bowler · 17 mi away
0.04 MGD
Marion Wastewater Treatment Fa: 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 20, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · WWTP · Biosolids · all terms