Owatonna WWTP
1200 Industrial Road, Owatonna, MN 55060 · Steele County · Publicly Owned Treatment Works
- Average flow
- 3.32 MGD
- Design flow
- 5 MGD
- NPDES permit
- MN0051284
- Expired
- Permit expires
- May 2026
- Population served
- 26,420
- CWNS 2022
Owatonna WWTP is a publicly owned wastewater treatment works in Owatonna, Steele County, Minnesota treating an average of 3.32 million gallons per day against a permitted design capacity of 5 MGD, serving about 26,420 residents. It discharges under NPDES permit MN0051284 (expired), which expires in May 2026, with 10 recorded violations in the last three years.
Treatment technology
3 treatment structures and unit processes identified at Owatonna WWTP.
Available with a free Klarifi account
See the full treatment train at Owatonna WWTP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 10
- Effluent violations
- 4
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 Owatonna WWTP in EPA's ICIS system.
- Formal actions
- 0
- none on record
- EPA inspections
- 2
- latest Jul 2024
No formal federal enforcement case is on record for this plant.
Full case history with a free Klarifi account
Every action against Owatonna WWTP with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
24 verified contacts for Owatonna WWTP, with validated emails and direct phone numbers.
Unlock 24 verified contacts (21 more than shown)
Names, validated emails and direct phone numbers for decision-makers at Owatonna WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Minnesota
Medford · 6 mi away
0.08 MGD
Owatonna · 8 mi away
—
Claremont · 13 mi away
—
Morristown · 14 mi away
0.06 MGD
West Concord · 17 mi away
—
Kenyon · 18 mi away
0.18 MGD
Waterville · 18 mi away
—
Geneva · 18 mi away
—
Owatonna WWTP: 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 March 6, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Centrate · Ozonation · all terms