Met Council - Empire WWTP
Farmington, MN · Dakota County · Publicly Owned Treatment Works
- Average flow
- 12.05 MGD
- Design flow
- —
- NPDES permit
- MNL045845
- Effective
- Permit expires
- December 2030
- Population served
- 92,175
- CWNS 2022
Met Council - Empire WWTP is a publicly owned wastewater treatment works in Farmington, Dakota County, Minnesota treating an average of 12.05 million gallons per day, serving about 92,175 residents. Treatment on site includes clarifiers, uncovered lagoons, biogas silos, biogas balloons. It discharges under NPDES permit MNL045845 (effective), which expires in December 2030, with 0 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Clarifiers
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Uncovered lagoons
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Biogas silos
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Biogas balloons
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Compliance snapshot (last 3 years)
- Total violations
- 0
- Effluent violations
- 0
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
10 verified contacts for Met Council - Empire WWTP, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Met Council - Empire WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Minnesota
Hampton · 6 mi away
—
Vermillion · 7 mi away
0.02 MGD
Eagan · 12 mi away
20.92 MGD
Cottage Grove · 12 mi away
6 MGD
Northfield · 13 mi away
2.15 MGD
Hastings · 14 mi away
1.53 MGD
Cannon Falls · 15 mi away
0.22 MGD
Faribault · 17 mi away
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Met Council - Empire 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 12, 2025.