Harahan, City Of
Harahan, LA · Jefferson County · Publicly Owned Treatment Works
- Average flow
- 1.17 MGD
- Design flow
- —
- NPDES permit
- LAL043940
- Effective
- Permit expires
- December 2030
- Population served
- 1,740
- CWNS 2022
Harahan, City Of is a publicly owned wastewater treatment plant in Harahan, Jefferson County, Louisiana treating an average of 1.17 million gallons per day, serving about 1,740 residents. It discharges under NPDES permit LAL043940 (effective), which expires in December 2030, with 124 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 124
- Effluent violations
- 124
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Harahan, City Of.
No verified contacts on file yet
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Harahan, City Of: 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 13, 2025.