Gretna City Of Wastewater Treatment Plant
Gretna, LA · Jefferson County · Publicly Owned Treatment Works
- Average flow
- 1.17 MGD
- Design flow
- 5 MGD
- NPDES permit
- LA0041262
- Effective
- Permit expires
- August 2028
- Population served
- 17,807
- CWNS 2022
Gretna City Of Wastewater Treatment Plant is a publicly owned wastewater treatment works in Gretna, Jefferson County, Louisiana treating an average of 1.17 million gallons per day against a permitted design capacity of 5 MGD, serving about 17,807 residents. Treatment on site includes clarifiers, uncovered lagoons. It discharges under NPDES permit LA0041262 (effective), which expires in August 2028, with 10 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
- 10
- Effluent violations
- 10
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
18 verified contacts for Gretna City Of Wastewater Treatment Plant, with validated emails and direct phone numbers.
Unlock 18 verified contacts (15 more than shown)
Names, validated emails and direct phone numbers for decision-makers at Gretna City Of Wastewater Treatment Plant, plus the full compliance history and discharge data.
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Chalmette · 5 mi away
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New Orleans · 5 mi away
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New Orleans · 5 mi away
3.38 MGD
Marrero · 6 mi away
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Bridge City · 7 mi away
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Elmwood · 9 mi away
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Belle Chasse · 9 mi away
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Gretna City Of Wastewater Treatment Plant: 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 April 24, 2025.