Monticello WWTP
Monticello, MN · Wright County · Publicly Owned Treatment Works
- Average flow
- 1.05 MGD
- Design flow
- 2.36 MGD
- NPDES permit
- MN0020567
- Effective
- Permit expires
- July 2031
- Population served
- 14,455
- CWNS 2022
Monticello WWTP is a publicly owned wastewater treatment works in Monticello, Wright County, Minnesota treating an average of 1.05 million gallons per day against a permitted design capacity of 2.36 MGD, serving about 14,455 residents. Treatment on site includes biogas silos, biogas balloons. It discharges under NPDES permit MN0020567 (effective), which expires in July 2031, with 106 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Compliance snapshot (last 3 years)
- Total violations
- 106
- Effluent violations
- 8
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
2 verified contacts for Monticello WWTP, with validated emails and direct phone numbers.
Unlock 2 verified contacts
Names, validated emails and direct phone numbers for decision-makers at Monticello WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Minnesota
Big Lake · 1 mi away
0.74 MGD
Otsego · 6 mi away
0.48 MGD
Albertville · 7 mi away
0.58 MGD
Becker · 8 mi away
0.91 MGD
Saint Michael · 9 mi away
0.96 MGD
Elk River · 11 mi away
1.6 MGD
Maple Lake · 11 mi away
0.69 MGD
Rogers · 12 mi away
1.09 MGD
Monticello 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 March 6, 2025.