South Water Treatment Plant
810 Broussard Road, Lafayette, LA 70506 · Lafayette County · Publicly Owned Treatment Works
- Average flow
- 0.01 MGD
- Design flow
- —
- NPDES permit
- LA0079278
- Effective
- Permit expires
- September 2030
- Population served
- —
- CWNS 2022
South Water Treatment Plant is a publicly owned wastewater treatment works in Lafayette, Lafayette County, Louisiana treating an average of 0.01 million gallons per day. It discharges under NPDES permit LA0079278 (effective), which expires in September 2030, with 4 recorded violations in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in July 2025.
Treatment technology
Treatment structures and unit processes at South Water Treatment Plant.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 4
- 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 South Water Treatment Plant in EPA's ICIS system.
- Formal actions
- 1
- 1 since FY2020
- Penalties assessed
- $800
- all cases
- EPA inspections
- 1
- latest Jul 2025
Latest case · Jul 2025
South Water Treatment Plant Lafayette, LA-RMP ESA-FY 2025
Administrative order · CAA, Prevention of Accidental Release/Risk Management Plans (RMPs) · Final Order With Penalty · Penalty $800
EPA's description of the case:
“On November 6, 2023, EPA Risk Management Program Reporting Center sent a letter to Respondent, notifying Respondent of its failure to update the Risk Management Plan on file with EPA for its facility…”
Unlock EPA's full description by creating a free account on Klarifi. Create a free account →
Source: EPA ECHO, civil enforcement case 06-2025-3451.
Full case history with a free Klarifi account
Every action against South Water Treatment Plant with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Capital improvement projects in Lafayette
Lafayette's capital improvement plan lists 83 water, sewer and wastewater line items worth $192M starting 2024–2028. The largest budgeted items are shown here.
All water and sewer capital projects in Lafayette →
| Project | Budget | Years |
|---|---|---|
| Galvanized Main Replacement | $38,900,000 | 2024–2029 |
| South Plant Flow Handling - Phase II | $32,200,000 | 2024–2027 |
| Collection System Imprv (Annual) | $12,500,000 | 2024–2029 |
| Lift Station Modifications & Improvements | $8,750,000 | 2024–2029 |
| ESTP Sludge Dryer | $6,300,000 | 2026–2028 |
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
Decision-makers at South Water Treatment Plant.
No verified contacts on file yet
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Nearby wastewater treatment plants in Louisiana
Lafayette · 3 mi away
5.29 MGD
Scott · 4 mi away
0.62 MGD
Maurice · 5 mi away
0.13 MGD
Duson · 7 mi away
0.1 MGD
Lafayette · 7 mi away
2.58 MGD
Maurice · 7 mi away
0.19 MGD
Lafayette · 8 mi away
0.0005 MGD
Youngsville · 8 mi away
1.42 MGD
South Water Treatment Plant: 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 19, 2026; facility record last updated July 18, 2023.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Activated sludge · Oxidation ditch · all terms