City Of Huntsville
Madison, AL · Madison County · Publicly Owned Treatment Works
- Average flow
- 10.29 MGD
- Design flow
- 32.5 MGD
- NPDES permit
- AL0049531
- Effective
- Permit expires
- June 2030
- Population served
- 78,488
- CWNS 2022
City Of Huntsville is a publicly owned wastewater treatment plant in Madison, Madison County, Alabama treating an average of 10.29 million gallons per day against a permitted design capacity of 32.5 MGD, serving about 78,488 residents. Treatment on site includes clarifiers, aerated lagoons, uncovered lagoons, carrousels / oxidation ditches. It discharges under NPDES permit AL0049531 (effective), which expires in June 2030, with 2 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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Aerated lagoons
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Uncovered lagoons
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Carrousels / oxidation ditches
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Compliance snapshot (last 3 years)
- Total violations
- 2
- Effluent violations
- 2
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
2 verified contacts for City Of Huntsville, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at City Of Huntsville, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Alabama
Decatur · 7 mi away
0.3 MGD
Huntsville · 12 mi away
4.06 MGD
Madison · 14 mi away
0.07 MGD
Harvest · 15 mi away
0.28 MGD
Huntsville · 16 mi away
0.02 MGD
Harvest · 16 mi away
0.42 MGD
Falkville · 17 mi away
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Owens Cross Roads · 17 mi away
0.04 MGD
City Of Huntsville: 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 June 28, 2025.