Blenker Sherry Sanitary District WWTF
Milladore, WI · Wood County · Publicly Owned Treatment Works
- Average flow
- 0.01 MGD
- Design flow
- 0.03 MGD
- NPDES permit
- WI0031950
- Expired
- Permit expires
- September 2019
- Population served
- 300
- CWNS 2022
Blenker Sherry Sanitary District WWTF is a publicly owned wastewater treatment works in Milladore, Wood County, Wisconsin treating an average of 0.01 million gallons per day against a permitted design capacity of 0.03 MGD, serving about 300 residents. It discharges under NPDES permit WI0031950 (expired), which expires in September 2019, with 56 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 56
- 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 Blenker Sherry Sanitary District WWTF.
No verified contacts on file yet
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Nearby wastewater treatment plants in Wisconsin
Milladore · 3 mi away
0.03 MGD
Auburndale · 5 mi away
—
Arpin · 6 mi away
0.03 MGD
Vesper · 8 mi away
0.09 MGD
Marshfield · 11 mi away
2.42 MGD
Stratford · 12 mi away
—
Pittsville · 15 mi away
0.08 MGD
Wisconsin Rapids · 15 mi away
2.32 MGD
Blenker Sherry Sanitary District WWTF: 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 November 20, 2025.