Rock Springs Wastewater Treatment Facility
Rock Springs, WI · Sauk County · Publicly Owned Treatment Works
- Average flow
- 0.0029 MGD
- Design flow
- 0.08 MGD
- NPDES permit
- WI0029041
- Expired
- Permit expires
- December 2023
- Population served
- 432
- CWNS 2022
Rock Springs Wastewater Treatment Facility is a publicly owned wastewater treatment works in Rock Springs, Sauk County, Wisconsin treating an average of 0.0029 million gallons per day against a permitted design capacity of 0.08 MGD, serving about 432 residents. Treatment on site includes uncovered lagoons. It discharges under NPDES permit WI0029041 (expired), which expires in December 2023, with 31 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
- 31
- Effluent violations
- 31
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
3 verified contacts for Rock Springs 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 Rock Springs Wastewater Treatment Facility, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Wisconsin
North Freedom · 3 mi away
0.02 MGD
Reedsburg · 6 mi away
2.02 MGD
Loganville · 6 mi away
0.0067 MGD
Baraboo · 9 mi away
1.29 MGD
Lake Delton · 12 mi away
1.4 MGD
La Valle · 13 mi away
0.0028 MGD
Lyndon Station · 17 mi away
0.04 MGD
Sauk City · 19 mi away
0.01 MGD
Rock Springs 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 6, 2025.