Plant B
1132 West 18th Street, Lake Charles, LA 70601 · Calcasieu County · Publicly Owned Treatment Works
- Average flow
- 6.53 MGD
- Design flow
- —
- NPDES permit
- LAL036366
- Effective
- Permit expires
- December 2030
- Population served
- 50,000
- CWNS 2022
Plant B is a publicly owned wastewater treatment plant in Lake Charles, Calcasieu County, Louisiana treating an average of 6.53 million gallons per day, serving about 50,000 residents. It discharges under NPDES permit LAL036366 (effective), which expires in December 2030, with 73 recorded violations in the last three years. EPA has recorded 9 formal enforcement actions naming the plant, the latest in July 2009.
Treatment technology
2 treatment structures and unit processes identified at Plant B.
Available with a free Klarifi account
See the full treatment train at Plant B: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 73
- Effluent violations
- 73
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 Plant B in EPA's ICIS system.
- Formal actions
- 9
- 0 since FY2020
- Penalties assessed
- $10,000
- all cases
- Compliance actions
- $100
- required by EPA orders
- EPA inspections
- 0
- none on record
Latest case · Jul 2009
Lake Charles, City of
Administrative order · CWA, Sewage Sludge Disposal · Unilateral Administrative Order Without Adjudication · Compliance actions $100
EPA's description of the case:
“Failure to submit annual sludge report for calendar 2003 and 2004. Relief: submit reports”
Source: EPA ECHO, civil enforcement case 06-2005-2035.
Full case history with a free Klarifi account
Every action against Plant B with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
Decision-makers at Plant B.
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
Lake Charles · 6 mi away
0.05 MGD
Iowa · 13 mi away
0.38 MGD
Dequincy · 19 mi away
0.1 MGD
Vinton · 20 mi away
0.6 MGD
Welsh · 24 mi away
0.28 MGD
Cameron · 29 mi away
0.46 MGD
Kinder · 30 mi away
0.32 MGD
Lake Arthur · 34 mi away
0.48 MGD
Plant B: 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 December 17, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Ozonation · Activated sludge · all terms