Clean Water Act discharge permit · NPDES LA0099007

HI-SEAS OF DULAC, INC., Dulac, LA: NPDES LA0099007 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
8Pollutants under a numeric limit
2Pollutants with an effluent exceedance

HI-SEAS OF DULAC, INC. holds NPDES permit LA0099007, which discharges to Bayou Grand Caillou. EPA’s file records it issued March 27, 2018 and expiring April 30, 2023. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filed	HI-SEAS OF DULAC, INC.
Permittee as filed	HI-SEAS OF DULAC, INC.
NPDES ID	LA0099007
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	March 27, 2018
Expiration date	April 30, 2023
Address	Dulac, LA 70353
Receiving water	BAYOU GRAND CAILLOU
Receiving water impaired	303(D) Listed
Subwatershed	Bayou Chauvin-Frontal Lake Boudreaux (HUC 080903020602)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

9Pollutants on file
8Under a numeric limit
6With a violation of any kind
2With an effluent exceedance

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 measure	Limits	Violations, any kind	Effluent exceedances	Latest exceedance	Largest exceedance, as filed
Coliform, fecal general	2	25	23	June 30, 2026	99,999% over the limit
Enterococci	0	15	11	June 30, 2026	99,999% over the limit
BOD, 5-day, 20 deg. C	4	2	0
pH	4	2	0
Solids, total suspended	4	2	0
Flow, in conduit or thru treatment plant	4	2	0
Oil & Grease	2	0	0
Nitrogen, total [as N]	2	0	0
Phosphorus, total [as P]	2	0	0

Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.

Inspections, violations and enforcement

4Single-event violations

Date	What EPA recorded	Agency
September 30, 2019	Reporting Violations - Failure to Submit DMRs	ST6
June 30, 2019	Reporting Violations - Improper/ Incorrect Reporting	ST6
June 30, 2018	Reporting Violations - Failure to Submit DMRs	ST6
May 31, 2018	Reporting Violations - Improper/ Incorrect Reporting	ST6

Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.

Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.

Watch this permit

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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID LA0099007 there.

Nearby on the register

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

This public-records page covers NPDES permit LA0099007, held by HI-SEAS OF DULAC, INC. of Dulac, LA, which discharges to Bayou Grand Caillou and is administratively continued. The page lists 9 pollutants on file, 8 under a numeric limit, 6 with a violation of any kind, and 2 with an effluent exceedance.