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Clean Water Act discharge permit · NPDES LAG536707

BUSINESS FIRST BANCSHARES, INC. - B1 BANK, Lake Charles, LA: NPDES LAG536707 discharge permit, effluent exceedances, inspections, penalties

BUSINESS FIRST BANCSHARES, INC. - B1 BANK holds NPDES permit LAG536707. EPA’s file records it issued December 21, 2023 and expiring November 30, 2027.

BUSINESS FIRST BANCSHARES, INC. - B1 BANK, Lake Charles, Louisiana: Coverage under a general permit LAG536707; Effective; issued December 21, 2023, term to November 30, 2027.

  • Solids, total suspended: 1 limit, 2 violations of any kind, 2 effluent exceedances, latest December 31, 2025, largest 3,100% over the limit.
  • Coliform, fecal general: 1 limit, 1 violation of any kind, 1 effluent exceedance, latest December 31, 2025, largest 800% over the limit.
  • pH: 2 limits, 0 violations of any kind, 0 effluent exceedances.
  • BOD, 5-day, 20 deg. C: 1 limit, 0 violations of any kind, 0 effluent exceedances.
  • Flow, in conduit or thru treatment plant: 1 limit, 0 violations of any kind, 0 effluent exceedances.

BUSINESS FIRST BANCSHARES, INC. - B1 BANK among its neighbors

EPA’s permit file holds 10 discharge permits in the Little Indian Bayou subwatershed (HUC 080802050502), LAG536707 among them. Its county holds 299, 28 of them major permits; LAG536707 is a minor permit.

Other permits in the Little Indian Bayou subwatershed (HUC 080802050502)

Identity

Facility as filedBUSINESS FIRST BANCSHARES, INC. - B1 BANK
Permittee as filedBUSINESS FIRST BANCSHARES, INC. - B1 BANK
NPDES IDLAG536707
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedDecember 21, 2023
Expiration dateNovember 30, 2027
AddressLake Charles, LA 70000
SubwatershedLittle Indian Bayou (HUC 080802050502)

Effluent limits and exceedances

An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.

Pollutant or measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
Solids, total suspended122December 31, 20253,100% over the limit
Coliform, fecal general111December 31, 2025800% over the limit
pH200
BOD, 5-day, 20 deg. C100
Flow, in conduit or thru treatment plant100

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES LAG536707.

Inspections

EPA’s inspection file holds no inspection for NPDES LAG536707.

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES LAG536707.

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Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

What this page shows

This public-records page covers Clean Water Act discharge permit NPDES LAG536707, held by BUSINESS FIRST BANCSHARES, INC. - B1 BANK in Lake Charles, LA, as filed in EPA's permit file, which lists the permit as effective and a minor discharger, with 5 pollutants on file, 5 under a numeric limit, and 2 with an effluent exceedance. The page is drawn from the permit file loaded on September 15, 2026, and the free ECHO Detailed Facility Report carries the permit's current standing.