Wards 5 & 8 Joint Sewerage Commision
735 Cotton Road, Patterson, LA 70392 · Saint Mary County · Publicly Owned Treatment Works
- Average flow
- 3.17 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 3.17 million gallons per day against a permitted design capacity of 12 MGD, serving about 29,807 residents. It discharges under NPDES permit LA0068381 (effective), which expires in September 2030, with 99 recorded violations in the last three years. EPA has recorded 2 formal enforcement actions naming the plant, the latest in June 2009.
Treatment technology
2 treatment structures and unit processes identified at Wards 5 & 8 Joint Sewerage Commision.
Available with a free Klarifi account
See the full treatment train at Wards 5 & 8 Joint Sewerage Commision: structures, unit processes and planned upgrades, with exact unit counts.
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.
EPA enforcement history
Federal civil enforcement cases, compliance inspections and informal actions recorded for Wards 5 & 8 Joint Sewerage Commision in EPA's ICIS system.
- Formal actions
- 2
- 0 since FY2020
- Penalties assessed
- $1,925
- all cases
- Compliance actions
- $1,125
- required by EPA orders
- EPA inspections
- 1
- latest Jul 2008
Latest case · Jun 2009
St. Mary Parish Wards 5 & 8 Cotton Road Treatment Facility
Administrative order · CAA, Prevention of Accidental Release/Risk Management Plans (RMPs) · Final Order With Penalty · Penalty $1,125 · Compliance actions $1,125
EPA's description of the case:
“Failure to comply with the regulations of the Risk Management Plan.”
Source: EPA ECHO, civil enforcement case 06-2009-3504.
Full case history with a free Klarifi account
Every action against Wards 5 & 8 Joint Sewerage Commision with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
1 verified contact for Wards 5 & 8 Joint Sewerage Commision, with validated emails and direct phone numbers.
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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
0.16 MGD
Amelia · 11 mi away
0.42 MGD
Morgan City · 11 mi away
0.21 MGD
Charenton · 20 mi away
0.06 MGD
Four Corners · 24 mi away
0.12 MGD
Napoleonville · 25 mi away
0.1 MGD
Thibodaux · 28 mi away
2.43 MGD
Jeanerette · 31 mi away
0.63 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 October 26, 2026; facility record last updated April 24, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Biosolids · Filter press · all terms