Barnesville WWTP
2nd Ave SW, Barnesville, MN 56514 · Clay County · Publicly Owned Treatment Works
- Average flow
- 1.26 MGD
- Design flow
- 0.53 MGD
- NPDES permit
- MN0022501
- Expired
- Permit expires
- April 2026
- Population served
- 2,464
- CWNS 2022
Barnesville WWTP is a publicly owned wastewater treatment works in Barnesville, Clay County, Minnesota treating an average of 1.26 million gallons per day against a permitted design capacity of 0.53 MGD, serving about 2,464 residents. It discharges under NPDES permit MN0022501 (expired), which expires in April 2026, with 98 recorded violations in the last three years.
Treatment technology
One treatment structure or unit process identified at Barnesville WWTP.
Available with a free Klarifi account
See the full treatment train at Barnesville WWTP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 98
- Effluent violations
- 5
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Barnesville WWTP.
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Nearby wastewater treatment plants in Minnesota
Rothsay · 13 mi away
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Sabin · 15 mi away
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Comstock · 15 mi away
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Hawley · 16 mi away
0.17 MGD
Glyndon · 16 mi away
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Pelican Rapids · 18 mi away
0.38 MGD
Lake Park · 22 mi away
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Moorhead · 22 mi away
3.8 MGD
Barnesville 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 October 7, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Ozonation · Activated sludge · all terms