St. Bernard Parish - Munster WWTP
3700 Munster Blvd, Chalmette, LA 70043 · St. Bernard County · Publicly Owned Treatment Works
- Average flow
- 7.08 MGD
- Design flow
- 14.5 MGD
- NPDES permit
- LA0040177
- Effective
- Permit expires
- August 2031
- Population served
- 15,255
- CWNS 2022
St. Bernard Parish - Munster WWTP is a publicly owned wastewater treatment works in Chalmette, St. Bernard County, Louisiana treating an average of 7.08 million gallons per day against a permitted design capacity of 14.5 MGD, serving about 15,255 residents. It discharges under NPDES permit LA0040177 (effective), which expires in August 2031, with 2 recorded violations in the last three years.
Treatment technology
Treatment structures and unit processes at St. Bernard Parish - Munster WWTP.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 2
- Effluent violations
- 2
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Capital improvement projects in Chalmette
Chalmette's capital improvement plan lists 15 water, sewer and wastewater line items worth $19M starting 2025–2025. The largest budgeted items are shown here.
All water and sewer capital projects in Chalmette →
| Project | Budget | Years |
|---|---|---|
| Riverbend Consolidation | $7,100,000 | 2025–2025 |
| Replacement and Maintenance of Water Meters | $2,615,072 | 2025–2025 |
| Water Project 3.2 | $2,160,000 | 2025–2025 |
| Water and Sewer Point Repairs – Routine Maintenance | $1,300,000 | 2025–2025 |
| Water Project 3.4 | $1,200,000 | 2025–2025 |
Full project details — scope, funding source, engineering consultant and the decision-makers behind each project — are available in Klarifi, along with similar wastewater capital projects in other cities.
Key contacts
2 verified contacts for St. Bernard Parish - Munster WWTP, with validated emails and direct phone numbers.
Unlock 2 verified contacts
Names, validated emails and direct phone numbers for decision-makers at St. Bernard Parish - Munster WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Louisiana
New Orleans · 4 mi away
13.61 MGD
Gretna · 5 mi away
2.25 MGD
Harvey · 8 mi away
—
Chalmette · 8 mi away
0.44 MGD
New Orleans · 9 mi away
1.13 MGD
Marrero · 10 mi away
8.08 MGD
Belle Chasse · 11 mi away
1.9 MGD
Bridge City · 12 mi away
2.33 MGD
St. Bernard Parish - Munster 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 April 13, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Anaerobic digester · Lift station · all terms