Ortonville WWTP
600 Jackson Ave, Ortonville, MN 56278 · Big Stone County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- 0.43 MGD
- NPDES permit
- MNG585151
- Effective
- Permit expires
- November 2028
- Population served
- 2,300
- CWNS 2022
Ortonville WWTP is a publicly owned wastewater treatment works in Ortonville, Big Stone County, Minnesota, serving about 2,300 residents. It discharges under NPDES permit MNG585151 (effective), which expires in November 2028, with 9 recorded violations in the last three years.
Treatment technology
One treatment structure or unit process identified at Ortonville WWTP.
Available with a free Klarifi account
See the full treatment train at Ortonville WWTP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 9
- Effluent violations
- 2
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Ortonville WWTP.
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Nearby wastewater treatment plants in Minnesota
Odessa Township · 4 mi away
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Bellingham · 12 mi away
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Appleton · 19 mi away
0.16 MGD
Marietta · 19 mi away
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Graceville · 20 mi away
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Madison · 23 mi away
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Chokio · 24 mi away
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Milan · 27 mi away
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Ortonville 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 September 2, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Tertiary treatment · Significant industrial user · all terms