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Clean Water Act discharge permit · NPDES INRM01875

ATMI INDY LLC, Greenfield, IN: NPDES INRM01875 discharge permit, effluent exceedances, inspections, penalties

ATMI INDY LLC, held by ATMI Indy LLC, holds NPDES permit INRM01875, which discharges to Indian Creek. EPA’s file records it issued June 18, 2020 and expiring June 17, 2025.

ATMI INDY LLC, Greenfield, Indiana: Individual permit INRM01875, held by ATMI Indy LLC; Industrial stormwater; Administratively continued (past its expiration date and still in force until reissued); issued June 18, 2020, term to June 17, 2025, by IDEM; discharges to Indian Creek; Other Concrete Product Manufacturing.

Indiana holds 1,027 Industrial stormwater coverages of this permit type in EPA’s file; 691 were issued before INRM01875.

Coverages issued nearest INRM01875

ATMI INDY LLC among its neighbors

EPA’s permit file holds 86 discharge permits in the Indian Lake-Indian Creek subwatershed (HUC 051202010902), INRM01875 among them. Its county holds 74, 1 of them major permits; INRM01875 is a minor permit.

Other permits in the Indian Lake-Indian Creek subwatershed (HUC 051202010902)

What the register holds for ATMI INDY LLC: its NPDES ID, its permit type and status, its dates, its address in Greenfield, Indiana, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES INRM01875.

Identity

Facility as filedATMI INDY LLC
Permittee as filedATMI Indy LLC
NPDES IDINRM01875
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
IssuedJune 18, 2020
Expiration dateJune 17, 2025
Issuing agencyIDEM
AddressGreenfield, IN 46140
Receiving waterIndian Creek
SubwatershedIndian Lake-Indian Creek (HUC 051202010902)
NAICS327390 – Other Concrete Product Manufacturing
SIC3272 – Concrete Products

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES INRM01875.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES INRM01875.

Inspections

EPA’s inspection file holds no inspection for NPDES INRM01875.

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 INRM01875.

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, INRM01875.

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Nearby on the register

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

What this page shows

ATMI INDY LLC is one of 13 storm water industrial permits in Hancock County, and 23.1% of those permits have a violation on file. The permit also sits within a subwatershed that contains 86 NPDES permits, and it has no pollutants under a numeric limit and no effluent exceedances on record.