Eau Claire Wastewater Treatment Facility
Eau Claire, WI · Eau Claire County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- 16.26 MGD
- NPDES permit
- WI0023850
- Expired
- Permit expires
- March 2023
- Population served
- 76,306
- CWNS 2022
Eau Claire Wastewater Treatment Facility is a publicly owned wastewater treatment works in Eau Claire, Eau Claire County, Wisconsin, serving about 76,306 residents. Treatment on site includes clarifiers, biogas silos, biogas balloons. It discharges under NPDES permit WI0023850 (expired), which expires in March 2023, with 3 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Compliance snapshot (last 3 years)
- Total violations
- 3
- Effluent violations
- 0
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
12 verified contacts for Eau Claire Wastewater Treatment Facility, with validated emails and direct phone numbers.
Unlock 12 verified contacts (9 more than shown)
Names, validated emails and direct phone numbers for decision-makers at Eau Claire Wastewater Treatment Facility, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Wisconsin
Elk Mound · 10 mi away
0.05 MGD
Chippewa Falls · 12 mi away
1.81 MGD
Fall Creek · 14 mi away
0.07 MGD
Strum · 17 mi away
0.11 MGD
Colfax · 18 mi away
0.19 MGD
Downsville · 19 mi away
0.01 MGD
Menomonie · 20 mi away
1.72 MGD
Bloomer · 21 mi away
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Eau Claire 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 April 13, 2025.