Wards 5 & 8 Joint Sewerage Commision
Patterson, LA · Saint Mary County · Publicly Owned Treatment Works
- Average flow
- 2.55 MGD
- Design flow
- 12 MGD
- NPDES permit
- LA0068381
- Effective
- Permit expires
- September 2030
- Population served
- 29,807
- CWNS 2022
Wards 5 & 8 Joint Sewerage Commision is a publicly owned wastewater treatment works in Patterson, Saint Mary County, Louisiana treating an average of 2.55 million gallons per day against a permitted design capacity of 12 MGD, serving about 29,807 residents. Treatment on site includes aerated lagoons, uncovered lagoons. It discharges under NPDES permit LA0068381 (effective), which expires in September 2030, with 99 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Compliance snapshot (last 3 years)
- Total violations
- 99
- Effluent violations
- 18
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for Wards 5 & 8 Joint Sewerage Commision, with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at Wards 5 & 8 Joint Sewerage Commision, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Louisiana
Centerville · 10 mi away
0.1 MGD
Amelia · 11 mi away
0.24 MGD
Morgan City · 11 mi away
—
Charenton · 20 mi away
0.04 MGD
Four Corners · 24 mi away
0.08 MGD
Napoleonville · 25 mi away
0.1 MGD
Thibodaux · 28 mi away
2.1 MGD
Jeanerette · 31 mi away
0.26 MGD
Wards 5 & 8 Joint Sewerage Commision: 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 24, 2025.