Arnaudville WWTP
Arnaudville, LA · St. Landry County · Publicly Owned Treatment Works
- Average flow
- 0.1 MGD
- Design flow
- 0.36 MGD
- NPDES permit
- LA0046639
- Effective
- Permit expires
- February 2029
- Population served
- 1,009
- CWNS 2022
Arnaudville WWTP is a publicly owned wastewater treatment works in Arnaudville, St. Landry County, Louisiana treating an average of 0.1 million gallons per day against a permitted design capacity of 0.36 MGD, serving about 1,009 residents. It discharges under NPDES permit LA0046639 (effective), which expires in February 2029, with 77 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
- 77
- Effluent violations
- 77
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Arnaudville WWTP.
No verified contacts on file yet
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Nearby wastewater treatment plants in Louisiana
Arnaudville · 5 mi away
0.05 MGD
Grand Coteau · 6 mi away
0.06 MGD
Sunset · 7 mi away
0.56 MGD
Carencro · 8 mi away
0.26 MGD
Carencro · 9 mi away
0.41 MGD
Lafayette · 9 mi away
1.16 MGD
Opelousas · 10 mi away
0.02 MGD
Breaux Bridge · 10 mi away
1.32 MGD
Arnaudville 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 July 18, 2023.