La Valle Wastewater Treatment Facility
La Valle, WI · Sauk County · Publicly Owned Treatment Works
- Average flow
- 0.0028 MGD
- Design flow
- 0.06 MGD
- NPDES permit
- WI0028878
- Expired
- Permit expires
- December 2023
- Population served
- 367
- CWNS 2022
La Valle Wastewater Treatment Facility is a publicly owned wastewater treatment works in La Valle, Sauk County, Wisconsin treating an average of 0.0028 million gallons per day against a permitted design capacity of 0.06 MGD, serving about 367 residents. Treatment on site includes uncovered lagoons. It discharges under NPDES permit WI0028878 (expired), which expires in December 2023, with 29 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Uncovered lagoons
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Compliance snapshot (last 3 years)
- Total violations
- 29
- Effluent violations
- 29
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
2 verified contacts for La Valle Wastewater Treatment Facility, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at La Valle Wastewater Treatment Facility, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Wisconsin
Reedsburg · 7 mi away
2.02 MGD
Loganville · 10 mi away
0.0067 MGD
Hillsboro · 12 mi away
0.14 MGD
Rock Springs · 13 mi away
0.0029 MGD
Lyndon Station · 15 mi away
0.04 MGD
North Freedom · 16 mi away
0.02 MGD
Mauston · 16 mi away
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Lake Delton · 18 mi away
1.4 MGD
La Valle 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 September 11, 2026; facility record last updated November 20, 2025.