Bad River Wwwtp
54173 Birch Street, Odanah, WI 54861 · Ashland County · Publicly Owned Treatment Works
- Average flow
- 0.05 MGD
- Design flow
- 0.02 MGD
- NPDES permit
- WI0036544
- Expired
- Permit expires
- July 2024
- Population served
- —
- CWNS 2022
Bad River Wwwtp is a publicly owned wastewater treatment works in Odanah, Ashland County, Wisconsin treating an average of 0.05 million gallons per day against a permitted design capacity of 0.02 MGD. It discharges under NPDES permit WI0036544 (expired), which expires in July 2024, with 988 recorded violations in the last three years. EPA has recorded 4 formal enforcement actions naming the plant, the latest in January 2026.
Treatment technology
One treatment structure or unit process identified at Bad River Wwwtp.
Available with a free Klarifi account
See the full treatment train at Bad River Wwwtp: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 988
- Effluent violations
- 155
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
EPA enforcement history
Federal civil enforcement cases, compliance inspections and informal actions recorded for Bad River Wwwtp in EPA's ICIS system.
- Formal actions
- 4
- 3 since FY2020
- Compliance actions
- $8.6M
- required by EPA orders
- EPA inspections
- 0
- none on record
Latest case · Jan 2026
Diaperville Stabilization Lagoon | AOC
Administrative order · CWA, NPDES Permit Violations · Final Order Issued · Compliance actions $85,000
EPA's description of the case:
“AOC sets out measures to correct alleged NPDES violations.”
Source: EPA ECHO, civil enforcement case 05-2026-0304.
Full case history with a free Klarifi account
Every action against Bad River Wwwtp with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
Decision-makers at Bad River Wwwtp.
No verified contacts on file yet
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Nearby wastewater treatment plants in Wisconsin
Ashland · 7 mi away
0.95 MGD
Washburn · 11 mi away
0.18 MGD
La Pointe · 13 mi away
0.03 MGD
Bayfield · 15 mi away
0.11 MGD
Bayfield · 18 mi away
0.49 MGD
Mellen · 20 mi away
0.14 MGD
Upson · 20 mi away
0.06 MGD
Grand View · 24 mi away
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Bad River Wwwtp: 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 April 13, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Biosolids · Filter press · all terms