Shawano Lake Sanitary District 1
Shawano, WI · Shawano County · Publicly Owned Treatment Works
- Average flow
- 1.71 MGD
- Design flow
- 3 MGD
- NPDES permit
- WI0028452
- Expired
- Permit expires
- September 2022
- Population served
- 18,080
- CWNS 2022
Shawano Lake Sanitary District 1 is a publicly owned wastewater treatment plant in Shawano, Shawano County, Wisconsin treating an average of 1.71 million gallons per day against a permitted design capacity of 3 MGD, serving about 18,080 residents. Treatment on site includes clarifiers. It discharges under NPDES permit WI0028452 (expired), which expires in September 2022, with 2 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Clarifiers
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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
3 verified contacts for Shawano Lake Sanitary District 1, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Shawano Lake Sanitary District 1, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Wisconsin
Keshena · 8 mi away
0.12 MGD
Gresham · 9 mi away
0.05 MGD
Clintonville · 12 mi away
0.45 MGD
Caroline · 13 mi away
—
Marion · 14 mi away
0.21 MGD
Nichols · 15 mi away
0.01 MGD
Krakow · 16 mi away
—
Black Creek · 17 mi away
0.01 MGD
Shawano Lake Sanitary District 1: 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 August 13, 2026.