Mermentau, Village Of -WWTP
4th St. Ext., Mermentau, LA 70556 · Acadia County · Publicly Owned Treatment Works
- Average flow
- 0.06 MGD
- Design flow
- 0.1 MGD
- NPDES permit
- LA0049271
- Effective
- Permit expires
- March 2031
- Population served
- 740
- CWNS 2022
Mermentau, Village Of -WWTP is a publicly owned wastewater treatment works in Mermentau, Acadia County, Louisiana treating an average of 0.06 million gallons per day against a permitted design capacity of 0.1 MGD, serving about 740 residents. It discharges under NPDES permit LA0049271 (effective), which expires in March 2031, with 110 recorded violations in the last three years. EPA has recorded 3 formal enforcement actions naming the plant, the latest in May 2012.
Treatment technology
Treatment structures and unit processes at Mermentau, Village Of -WWTP.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 110
- Effluent violations
- 110
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 Mermentau, Village Of -WWTP in EPA's ICIS system.
- Formal actions
- 3
- 0 since FY2020
- Compliance actions
- $1M
- required by EPA orders
- EPA inspections
- 1
- latest Dec 2002
Latest case · May 2012
Mermentau, Village of
Administrative order · CWA, NPDES Discharge without a Permit · Unilateral Administrative Order Without Adjudication · Compliance actions $1M
EPA's description of the case:
“VIOLATIONS: Facility violated effluent limitations from January 1002 thru December 2002.Deficiencies noted during inspection on December 11, 2002. RELIEF: Village applies ffor grant to replace…”
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Source: EPA ECHO, civil enforcement case 06-2003-1934.
Full case history with a free Klarifi account
Every action against Mermentau, Village Of -WWTP with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
1 verified contact for Mermentau, Village Of -WWTP, with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at Mermentau, Village Of -WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Louisiana
Jennings · 4 mi away
1.44 MGD
Morse · 7 mi away
0.07 MGD
Estherwood · 8 mi away
0.0012 MGD
Iota · 10 mi away
0.16 MGD
Lake Arthur · 10 mi away
0.48 MGD
Crowley · 11 mi away
1.89 MGD
Welsh · 15 mi away
0.28 MGD
Basile · 20 mi away
0.24 MGD
Mermentau, Village Of -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 October 26, 2026; facility record last updated July 18, 2023.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Tertiary treatment · Significant industrial user · all terms