Blue Mounds Waterworks
10961 Cth Id , Blue Mounds, Wisconsin, Blue Mounds, WI 53517 · Dane County · Publicly Owned Treatment Works
- Average flow
- 0.04 MGD
- Design flow
- 0.07 MGD
- NPDES permit
- WI0031658
- Expired
- Permit expires
- December 2025
- Population served
- 987
- CWNS 2022
Blue Mounds Waterworks is a publicly owned wastewater treatment plant in Blue Mounds, Dane County, Wisconsin treating an average of 0.04 million gallons per day against a permitted design capacity of 0.07 MGD, serving about 987 residents. It discharges under NPDES permit WI0031658 (expired), which expires in December 2025, with 19 recorded violations in the last three years.
Treatment technology
Treatment structures and unit processes at Blue Mounds Waterworks.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 19
- Effluent violations
- 1
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Blue Mounds Waterworks.
No verified contacts on file yet
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Nearby wastewater treatment plants in Wisconsin
Mount Horeb · 5 mi away
—
Ridgeway · 8 mi away
0.04 MGD
Hollandale · 11 mi away
0.06 MGD
Mazomanie · 11 mi away
0.34 MGD
Cross Plains · 11 mi away
0.35 MGD
Dodgeville · 15 mi away
0.44 MGD
Spring Green · 16 mi away
0.14 MGD
New Glarus · 18 mi away
0.34 MGD
Blue Mounds Waterworks: 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 September 28, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Tertiary treatment · Significant industrial user · all terms