Clean Water Act discharge permit · NPDES LA0122114

MALLINCKRODT MANUFACTURING LLC, Port Allen, LA: NPDES LA0122114 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
39Pollutants under a numeric limit
8Pollutants with an effluent exceedance

MALLINCKRODT MANUFACTURING LLC holds NPDES permit LA0122114. EPA’s file records it issued October 27, 2017 and expiring November 30, 2022. 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	MALLINCKRODT MANUFACTURING LLC
Permittee as filed	MALLINCKRODT MANUFACTURING LLC
NPDES ID	LA0122114
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 27, 2017
Expiration date	November 30, 2022
Address	Port Allen, LA 70767
Subwatershed	Gulf Intracoastal Waterway-Choctaw Basin Drainage Canal (HUC 080703000206)
Other EPA IDs (FRS)	RCRA handler LAR000032318

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

Effluent limits and exceedances

40Pollutants on file
39Under a numeric limit
39With a violation of any kind
8With 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
Phenol	2	11	5	June 30, 2024	1,050% over the limit
Acetonitrile	2	10	2	December 31, 2024	300% over the limit
Dimethyl sulfoxide, total	2	10	2	December 31, 2024	119% over the limit
N-Hexane	2	9	1	September 30, 2024	800% over the limit
n-Heptane	2	9	1	September 30, 2024	100% over the limit
Xylene [mix of m+o+p]	0	9	1	September 30, 2024	233% over the limit
Isopropanol	2	7	1	December 31, 2014	44% over the limit
Acetone	2	7	1	December 31, 2017	43% over the limit
pH	8	30	0
Flow, in conduit or thru treatment plant	8	30	0
BOD, 5-day, 20 deg. C	4	20	0
Oxygen demand, chem. [high level] [COD]	4	20	0
Nitrogen, ammonia total [as N]	4	20	0
Solids, total suspended	4	18	0
2-Methoxyethanol	2	8	0
Methyl formate	2	8	0
Ethanol	2	8	0
Diethylamine	2	8	0
Triethylamine	2	8	0
Methanol, total	2	8	0
Cyanide, total [as CN]	2	6	0
1,2-Dichloroethane	2	6	0
Chloroform	2	6	0
Toluene	2	6	0
Benzene	2	6	0
Chlorobenzene	2	6	0
Methylene chloride	2	6	0
1,2-Dichlorobenzene	2	6	0
Isopropyl acetate	2	6	0
Isobutyraldehyde	2	6	0
n-Amyl acetate	2	6	0
Amyl alcohol	2	6	0
Isopropyl ether	2	6	0
n-Butyl acetate	2	6	0
Ethyl acetate	2	6	0
Methyl isobutyl ketone	2	6	0
Tetrahydrofuran	2	6	0
Oil & Grease	2	5	0
Carbon, tot organic [TOC]	2	5	0
Xylenes [total], dry weight	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

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES LA0122114.

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.

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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 LA0122114 there.

Nearby on the register

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

This public-records page covers NPDES permit LA0122114, held by MALLINCKRODT MANUFACTURING LLC in Port Allen, LA, and lists its status as administratively continued with a minor discharger class. The facts show 40 pollutants on file, 39 under a numeric limit, 8 with an effluent exceedance, and the issuance and expiration dates as EPA's permit file stood on September 15, 2026.