St. Martinville, City Of
St. Martinville, LA 70582 · Saint Martin County · Publicly Owned Treatment Works
- Average flow
- 0.28 MGD
- Design flow
- 2.5 MGD
- NPDES permit
- LA0040941
- Effective
- Permit expires
- June 2031
- Population served
- 7,494
- CWNS 2022
St. Martinville, City Of is a publicly owned wastewater treatment plant in St. Martinville, Saint Martin County, Louisiana treating an average of 0.28 million gallons per day against a permitted design capacity of 2.5 MGD, serving about 7,494 residents. It discharges under NPDES permit LA0040941 (effective), which expires in June 2031, with 1 recorded violation in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in February 2015.
Treatment technology
Treatment structures and unit processes at St. Martinville, City Of.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 1
- Effluent violations
- 1
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
EPA enforcement history
Federal civil enforcement cases, compliance inspections and informal actions recorded for St. Martinville, City Of in EPA's ICIS system.
- Formal actions
- 1
- 0 since FY2020
- Penalties assessed
- $49,926
- all cases
- Compliance actions
- $2.7M
- required by EPA orders
- EPA inspections
- 0
- none on record
Latest case · Feb 2015
ST. MARTINVILLE, CITY OF, A LOUISIANA MUNICIPALITY
Judicial case · CWA, NPDES Permit Violations · Final Order With Penalty · Penalty $49,926 · Compliance actions $2.7M
Source: EPA ECHO, civil enforcement case 06-1998-0326.
Full case history with a free Klarifi account
Every action against St. Martinville, City Of with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
Decision-makers at St. Martinville, City Of.
No verified contacts on file yet
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Nearby wastewater treatment plants in Louisiana
Saint Martinville · 1 mi away
—
Parks · 5 mi away
0.93 MGD
Broussard · 5 mi away
1.16 MGD
Breaux Bridge · 9 mi away
1.21 MGD
Youngsville · 9 mi away
1.42 MGD
Lafayette · 9 mi away
2.58 MGD
Loreauville · 9 mi away
0.07 MGD
Lafayette · 11 mi away
5.29 MGD
St. Martinville, 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 October 26, 2026; facility record last updated July 18, 2023.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Significant industrial user · WWTP · all terms