Clean Water Act discharge permit · NPDES LA0006858

AVERY ISLAND, Avery Island, LA: NPDES LA0006858 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
5Pollutants under a numeric limit
5Pollutants with an effluent exceedance
0Inspections on file
0Formal enforcement actions

AVERY ISLAND, held by MCILHEANY COMPANY INC. -AVERY ISLAND, holds NPDES permit LA0006858, which discharges to Bayou Petit Anse. EPA’s file records it issued October 21, 2016 and expiring November 30, 2021. 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	AVERY ISLAND
Permittee as filed	MCILHEANY COMPANY INC. -AVERY ISLAND
NPDES ID	LA0006858
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	October 21, 2016
Expiration date	November 30, 2021
Address	Avery Island, LA 70513
Receiving water	BAYOU PETIT ANSE
Receiving water impaired	303(D) Listed
Subwatershed	Deblane Coulee-Bayou Petite Anse (HUC 080801030305)
Other EPA IDs (FRS)	RCRA handler LAR000056580

Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.

Effluent limits and exceedances

6Pollutants on file
5Under a numeric limit
6With a violation of any kind
5With 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	8	26	18	August 31, 2024	99,999% over the limit
Solids, total suspended	9	15	6	December 31, 2019	300% over the limit
Enterococci	0	4	4	June 30, 2024	779% over the limit
BOD, 5-day, 20 deg. C	9	10	1	June 30, 2019	43% over the limit
pH	8	9	1	December 31, 2018
Flow, in conduit or thru treatment plant	9	11	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

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES LA0006858.

Inspections

EPA’s inspection file holds no inspection for NPDES LA0006858.

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 LA0006858.

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

One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, LA0006858.

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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 LA0006858 there.

Nearby on the register

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

This public-records page covers Clean Water Act discharge permit NPDES LA0006858, held by MCILHEANY COMPANY INC. -AVERY ISLAND at Avery Island, LA, which discharges to BAYOU PETIT ANSE. The permit is listed as administratively continued, with a Minor discharger class and 5 pollutants under a numeric limit, 5 of which show an effluent exceedance.