Clean Water Act discharge permit · NPDES LA0004316

ENTERGY NEW ORLEANS, INC.- A. B. PATTERSON PLANT, New Orleans, LA: NPDES LA0004316 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
9Pollutants under a numeric limit
0Pollutants with an effluent exceedance
0Inspections on file
0Formal enforcement actions

ENTERGY NEW ORLEANS, INC.- A. B. PATTERSON PLANT, held by Entergy New Orleans, Inc.- A. B. Patterson Plant, holds NPDES permit LA0004316, which discharges to Inner Harbor Canal. EPA’s file records it issued May 24, 2004 and expiring May 31, 2009.

ENTERGY NEW ORLEANS, INC.- A. B. PATTERSON PLANT, New Orleans, Louisiana: Individual permit LA0004316, held by Entergy New Orleans, Inc.- A. B. Patterson Plant; Administratively continued (past its expiration date and still in force until reissued); issued May 24, 2004, term to May 31, 2009; discharges to INNER HARBOR CANAL.

Solids, total suspended: 4 limits, 19 violations of any kind, 0 effluent exceedances.
Flow, in conduit or thru treatment plant: 12 limits, 18 violations of any kind, 0 effluent exceedances.
pH: 8 limits, 16 violations of any kind, 0 effluent exceedances.
Oil and grease: 6 limits, 14 violations of any kind, 0 effluent exceedances.
Carbon, tot organic [TOC]: 4 limits, 8 violations of any kind, 0 effluent exceedances.
Lead, total [as Pb]: 0 limits, 3 violations of any kind, 0 effluent exceedances.
Benzene, ethylbenzene, toluene, xylene combination: 0 limits, 3 violations of any kind, 0 effluent exceedances.
Benzene: 0 limits, 3 violations of any kind, 0 effluent exceedances.
Temperature, water deg. fahrenheit: 2 limits, 2 violations of any kind, 0 effluent exceedances.
Chlorine, total residual: 1 limit, 1 violation of any kind, 0 effluent exceedances.
Copper, total [as Cu]: 1 limit, 0 violations of any kind, 0 effluent exceedances.
Iron, total [as Fe]: 1 limit, 0 violations of any kind, 0 effluent exceedances.

ENTERGY NEW ORLEANS, INC.- A. B. PATTERSON PLANT among its neighbors

EPA’s permit file holds 4 discharge permits in the Mississippi River Gulf Outlet Canal-Frontal Lake Borgne subwatershed (HUC 080902030302), LA0004316 among them. Its county holds 106, 6 of them major permits; LA0004316 is a minor permit.

Other permits in the Mississippi River Gulf Outlet Canal-Frontal Lake Borgne subwatershed (HUC 080902030302)

SOUTHERN RECYCLING LLC, New Orleans: LA0073091, minor permit, permit term to March 31, 2017
TENNESSEE GAS PIPELINE COMPANY LLC - COMPRESSOR STATION 529, St. Bernard: LAG481254, minor permit, permit term to December 15, 2025
THE BOARD OF COMMISSIONERS OF THE PORT OF NEW ORLEANS - SEABROOK RAILROAD BRIDGE, New Orleans: LAG537094, minor permit, permit term to November 30, 2027

Identity

Facility as filed	ENTERGY NEW ORLEANS, INC.- A. B. PATTERSON PLANT
Permittee as filed	Entergy New Orleans, Inc.- A. B. Patterson Plant
NPDES ID	LA0004316
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	May 24, 2004
Expiration date	May 31, 2009
Address	New Orleans, LA 70160
Receiving water	INNER HARBOR CANAL
Subwatershed	Mississippi River Gulf Outlet Canal-Frontal Lake Borgne (HUC 080902030302)
SIC	4911 – Electric Services
Other EPA IDs (FRS)	RCRA handler LAD000757641

Effluent limits and exceedances

12Pollutants on file
9Under a numeric limit
10With a violation of any kind
0With 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
Solids, total suspended	4	19
Flow, in conduit or thru treatment plant	12	18
pH	8	16
Oil and grease	6	14
Carbon, tot organic [TOC]	4	8
Lead, total [as Pb]	0	3
Benzene, ethylbenzene, toluene, xylene combination	0	3
Benzene	0	3
Temperature, water deg. fahrenheit	2	2
Chlorine, total residual	1	1
Copper, total [as Cu]	1	0
Iron, total [as Fe]	1	0

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES LA0004316.

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES LA0004316.

Inspections

EPA’s inspection file holds no inspection for NPDES LA0004316.

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 LA0004316.

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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

This public-records page covers Clean Water Act NPDES permit LA0004316, held by Entergy New Orleans, Inc.- A. B. Patterson Plant in New Orleans, LA, which discharges to Inner Harbor Canal. The permit is listed as administratively continued, a Minor discharger class 9 with 0 pollutants under a numeric limit and 0 pollutants with an effluent exceedance, and it is recorded with an issue date of May 24, 2004 and an expiration date of May 31, 2009.