Suma Crossing STP
Livingston, LA · Livingston County · Publicly Owned Treatment Works
- Average flow
- 0.1 MGD
- Design flow
- 0.5 MGD
- NPDES permit
- LA0125148
- Effective
- Permit expires
- March 2027
- Population served
- —
- CWNS 2022
Suma Crossing STP is a publicly owned wastewater treatment works in Livingston, Livingston County, Louisiana treating an average of 0.1 million gallons per day against a permitted design capacity of 0.5 MGD. It discharges under NPDES permit LA0125148 (effective), which expires in March 2027, with 105 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 105
- Effluent violations
- 99
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Suma Crossing STP.
No verified contacts on file yet
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Nearby wastewater treatment plants in Louisiana
Denham Springs · 6 mi away
0.26 MGD
Denham Springs · 8 mi away
2.39 MGD
Denham Springs · 11 mi away
0.5 MGD
Albany · 13 mi away
0.00072 MGD
Gonzales · 16 mi away
0.02 MGD
Springfield · 16 mi away
0.1 MGD
Hammond · 18 mi away
0.07 MGD
Hammond · 19 mi away
4.87 MGD
Suma Crossing STP: 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 July 18, 2023.