Dequincy Wastewater Treatment Facility
Dequincy, LA · Calcasieu County · Publicly Owned Treatment Works
- Average flow
- 0.11 MGD
- Design flow
- —
- NPDES permit
- LAL038709
- Effective
- Permit expires
- December 2030
- Population served
- 3,830
- CWNS 2022
Dequincy Wastewater Treatment Facility is a publicly owned wastewater treatment works in Dequincy, Calcasieu County, Louisiana treating an average of 0.11 million gallons per day, serving about 3,830 residents. It discharges under NPDES permit LAL038709 (effective), which expires in December 2030, with 53 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
- 53
- Effluent violations
- 15
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Dequincy Wastewater Treatment Facility.
No verified contacts on file yet
Klarifi verifies plant and municipal decision-makers continuously. Start a free trial to browse contacts at nearby plants and flag this one for verification.
Nearby wastewater treatment plants in Louisiana
Vinton · 19 mi away
0.43 MGD
Lake Charles · 19 mi away
5.74 MGD
Lake Charles · 21 mi away
—
Merryville · 23 mi away
0.22 MGD
Iowa · 27 mi away
0.65 MGD
Deridder · 30 mi away
0.7 MGD
Rosepine · 34 mi away
0.14 MGD
Welsh · 38 mi away
0.2 MGD
Dequincy Wastewater Treatment Facility: 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.