Clean Water Act discharge permit · NPDES INRM01120

MESSER LLC, La Porte, IN: NPDES INRM01120 discharge permit, effluent exceedances, inspections, penalties

EffectivePermit status
MinorDischarger class
8Pollutants under a numeric limit
0Pollutants with an effluent exceedance
0Inspections on file
0Formal enforcement actions

MESSER LLC, held by Messer LLC, holds NPDES permit INRM01120. EPA’s file records it issued May 13, 2020 and expiring August 28, 2025.

MESSER LLC, La Porte, Indiana: Individual permit INRM01120, held by Messer LLC; Industrial stormwater; Effective; issued May 13, 2020, term to August 28, 2025, by IDEM; Industrial Gas Manufacturing.

pH: 1 limit, 4 violations of any kind, 0 effluent exceedances.
Solids, total suspended: 1 limit, 4 violations of any kind, 0 effluent exceedances.
Oil and grease, hexane extr method: 1 limit, 4 violations of any kind, 0 effluent exceedances.
Nitrogen, Kjeldahl, total [as N]: 1 limit, 4 violations of any kind, 0 effluent exceedances.
Nitrite + Nitrate total [as N]: 1 limit, 4 violations of any kind, 0 effluent exceedances.
Phosphorus, total [as P]: 1 limit, 4 violations of any kind, 0 effluent exceedances.
BOD, carbonaceous [5 day, 20 C]: 1 limit, 4 violations of any kind, 0 effluent exceedances.
Chemical Oxygen Demand [COD]: 1 limit, 4 violations of any kind, 0 effluent exceedances.

Indiana holds 1,027 Industrial stormwater coverages of this permit type in EPA’s file; 671 were issued before INRM01120.

Coverages issued nearest INRM01120

April 24, 2020: MILESTONE CONTRACTORS LP, Bloomfield, INRM00011, held by Milestone Contractors LP
April 24, 2020: BOARS HEAD PROVISIONS CO INC, New Castle, INRM02647, held by Boars Head Provisions Co Inc
April 27, 2020: LEWIS SALVAGE, Warsaw, INRM02649, held by Lewis Salvage
April 27, 2020: MEAD JOHNSON NUTRITIONALS, Evansville, INRM02650, held by Mead Johnson Nutritionals
April 29, 2020: CSX TRANSPORTATION INC HOWELL YARD, Evansville, INRM00071, held by CSX Transportation Inc Howell Yard
May 13, 2020: INTERNATIONAL PAPER, Crawfordsville, INRM01886, held by International Paper
May 15, 2020: TRELLEBORG SEALING SOLUTIONS, Fort Wayne, INRM00066, held by Trelleborg Sealing Solutions
May 19, 2020: PENDLETON CORRECTIONAL FACILITY, Pendleton, INRM01876, held by Pendleton Correctional Facility
May 20, 2020: ALFA LAVAL SERVICE CENTER/AMERICAN DISTRIBUTION CENTER, Greenwood, INRM02661, held by Alfa Laval Service Center/American Distribution Center
June 1, 2020: WALDEN TRANSPORT & RECYCLE, Crawfordsville, INRM02663, held by Walden Transport & Recycle

MESSER LLC among its neighbors

EPA’s permit file holds 9 discharge permits in the Headwaters South Branch Galien River subwatershed (HUC 040400010205), INRM01120 among them. Its county holds 59, 4 of them major permits; INRM01120 is a minor permit.

Other permits in the Headwaters South Branch Galien River subwatershed (HUC 040400010205)

BELLA LARGO SENIOR LIVING FACILITY, La Porte: INRA09491, minor permit, permit term to April 11, 2027
DAN VERSAW LAND CONTOURING PROJECT, La Porte: INRA08724, minor permit, permit term to November 10, 2026
IN DOT DES 1900050 US 20 ADD TWO-WAY LEFT TURN LANES, Laporte: INRA11034, minor permit, permit term to December 18, 2027
LAPORTE COUNTY WATER POLLUTION CONTROL FACILITY, Rolling Prairie: IN0020931, minor permit, discharging to GALENA R VIA HOG LAKE, permit term to March 31, 2026
NIHOLAS PARRILLI LAND CLEARING & CONTOURING AREA, La Porte: INRA11721, minor permit, permit term to May 1, 2028
PARRILLI US 20 MOBILE HOME PARK RESTORATION, La Porte: INRA11576, minor permit, permit term to April 9, 2028
SUNNY TRAILS ESTATES WWTP, La Porte: IN0039535, minor permit, discharging to LAKE MICHIGAN VIA GALENA RIVER, permit term to October 31, 2025
WAGNER ESTATES, La Porte: INRA12128, minor permit, permit term to July 10, 2028

Identity

Facility as filed	MESSER LLC
Permittee as filed	Messer LLC
NPDES ID	INRM01120
Permit status	Effective
Permit type	Individual permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Program	Industrial stormwater
Issued	May 13, 2020
Expiration date	August 28, 2025
Issuing agency	IDEM
Address	La Porte, IN 46350
Subwatershed	Headwaters South Branch Galien River (HUC 040400010205)
NAICS	325120 – Industrial Gas Manufacturing
SIC	2813 – Industrial Gases
Other EPA IDs (FRS)	RCRA handler IND982616609

Effluent limits and exceedances

8Pollutants on file
8Under a numeric limit
8With 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
pH	1	4
Solids, total suspended	1	4
Oil and grease, hexane extr method	1	4
Nitrogen, Kjeldahl, total [as N]	1	4
Nitrite + Nitrate total [as N]	1	4
Phosphorus, total [as P]	1	4
BOD, carbonaceous [5 day, 20 C]	1	4
Chemical Oxygen Demand [COD]	1	4

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES INRM01120.

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES INRM01120.

Inspections

EPA’s inspection file holds no inspection for NPDES INRM01120.

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 INRM01120.

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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 INRM01120 for MESSER LLC in La Porte, IN, an individual minor industrial stormwater permit issued by IDEM with a listed issue date of May 13, 2020 and expiration date of August 28, 2025. The facts list 8 pollutants on file, 8 of them under a numeric limit, and 0 pollutants with an effluent exceedance.