Buffalo WWTP
Buffalo, MN · Wright County · Publicly Owned Treatment Works
- Average flow
- 1.23 MGD
- Design flow
- —
- NPDES permit
- MNL040649
- Effective
- Permit expires
- December 2030
- Population served
- 16,210
- CWNS 2022
Buffalo WWTP is a publicly owned wastewater treatment works in Buffalo, Wright County, Minnesota treating an average of 1.23 million gallons per day, serving about 16,210 residents. Treatment on site includes uncovered lagoons, carrousels / oxidation ditches, biogas balloons. It discharges under NPDES permit MNL040649 (effective), which expires in December 2030, with 1 recorded violation in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Uncovered lagoons
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Carrousels / oxidation ditches
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Biogas balloons
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Compliance snapshot (last 3 years)
- Total violations
- 1
- Effluent violations
- 1
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Capital improvement projects in Buffalo
Buffalo's capital improvement plan lists 26 water, sewer and wastewater line items worth $7M starting 2025–2029. The largest budgeted items are shown here.
All water and sewer capital projects in Buffalo →
| Project | Budget | Years |
|---|---|---|
| NE Area Recon Phase I (1930s Watermain) | $1,500,000 | 2026–2026 |
| Water Storage Tank South | $900,000 | 2029–2029 |
| Watermain Repair | $750,000 | 2029–2029 |
| Rodeo Hills Watermain Loop | $750,000 | 2029–2029 |
| Sundance Ridge Watermain Loop | $350,000 | 2029–2029 |
Full project details — scope, funding source, engineering consultant and the decision-makers behind each project — are available in Klarifi, along with similar wastewater capital projects in other cities.
Key contacts
2 verified contacts for Buffalo WWTP, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Buffalo WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Minnesota
Montrose · 4 mi away
0.39 MGD
Delano · 7 mi away
0.54 MGD
Rockford · 8 mi away
—
Greenfield · 8 mi away
0.02 MGD
Maple Lake · 8 mi away
0.69 MGD
Watertown · 11 mi away
0.31 MGD
Winsted · 13 mi away
0.26 MGD
Cokato · 13 mi away
0.47 MGD
Buffalo 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 September 11, 2026; facility record last updated August 19, 2026.