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Clean Water Act discharge permit · NPDES INRM01820

MICHIGAN CITY PORT AUTHORITY, Michigan City, IN: NPDES INRM01820 discharge permit, effluent exceedances, inspections, penalties

MICHIGAN CITY PORT AUTHORITY, held by Michigan City Port Authority, holds NPDES permit INRM01820. EPA’s file records it issued December 18, 2014 and expiring December 17, 2019.

MICHIGAN CITY PORT AUTHORITY, Michigan City, Indiana: Individual permit INRM01820, held by Michigan City Port Authority; Industrial stormwater; Administratively continued (past its expiration date and still in force until reissued); issued December 18, 2014, term to December 17, 2019, by IDEM.

Indiana holds 1,027 Industrial stormwater coverages of this permit type in EPA’s file; 110 were issued before INRM01820. Michigan City Port Authority holds 2 permits in Indiana.

Other permits held by Michigan City Port Authority

Coverages issued nearest INRM01820

MICHIGAN CITY PORT AUTHORITY among its neighbors

EPA’s permit file holds 25 discharge permits in the Trail Creek subwatershed (HUC 040400010105), INRM01820 among them. Its county holds 59, 4 of them major permits; INRM01820 is a minor permit.

Other permits in the Trail Creek subwatershed (HUC 040400010105)

What the register holds for MICHIGAN CITY PORT AUTHORITY: its NPDES ID, its permit type and status, its dates, its address in Michigan City, Indiana. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES INRM01820.

Identity

Facility as filedMICHIGAN CITY PORT AUTHORITY
Permittee as filedMichigan City Port Authority
NPDES IDINRM01820
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramIndustrial stormwater
IssuedDecember 18, 2014
Expiration dateDecember 17, 2019
Issuing agencyIDEM
AddressMichigan City, IN 46360
Receiving water impaired303(D) Listed
SubwatershedTrail Creek (HUC 040400010105)

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES INRM01820.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES INRM01820.

Inspections

EPA’s inspection file holds no inspection for NPDES INRM01820.

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 INRM01820.

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, INRM01820.

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Nearby on the register

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

What this page shows

The Michigan City Port Authority's storm water industrial permit, NPDES ID INRM01820, is one of 16 such permits in LaPorte County, this one included. Among those 16 county permits, 0.0% were issued earlier than this one, which was issued December 18, 2014. Of the 16 storm water industrial permits in LaPorte County, 12.5% have a violation on file, while this permit has none of the 0 pollutants under a numeric limit and none of the 0 pollutants with an effluent exceedance.