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Clean Water Act discharge permit · NPDES INRA15539

CYTEC-SOLVAY GROUNDWATER REMEDIATION PROJECT, Michigan City, IN: NPDES INRA15539 discharge permit, effluent exceedances, inspections, penalties

CYTEC-SOLVAY GROUNDWATER REMEDIATION PROJECT, held by David Mack, holds NPDES permit INRA15539. EPA’s file records it issued March 11, 2025 and expiring March 10, 2030.

CYTEC-SOLVAY GROUNDWATER REMEDIATION PROJECT, Michigan City, Indiana: Coverage under a general permit INRA15539, held by David Mack; Construction stormwater; Effective; issued March 11, 2025, term to March 10, 2030, by State.

Indiana holds 7,813 Construction stormwater coverages of this permit type in EPA’s file; 4,713 were issued before INRA15539.

Coverages issued nearest INRA15539

CYTEC-SOLVAY GROUNDWATER REMEDIATION PROJECT among its neighbors

EPA’s permit file holds 25 discharge permits in the Trail Creek subwatershed (HUC 040400010105), INRA15539 among them.

Other permits in the Trail Creek subwatershed (HUC 040400010105)

What the register holds for CYTEC-SOLVAY GROUNDWATER REMEDIATION PROJECT: 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 INRA15539.

Identity

Facility as filedCYTEC-SOLVAY GROUNDWATER REMEDIATION PROJECT
Permittee as filedDavid Mack
NPDES IDINRA15539
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramConstruction stormwater
IssuedMarch 11, 2025
Expiration dateMarch 10, 2030
Issuing agencyState
AddressMichigan City, IN 46360
SubwatershedTrail Creek (HUC 040400010105)

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES INRA15539.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES INRA15539.

Inspections

EPA’s inspection file holds no inspection for NPDES INRA15539.

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 INRA15539.

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, INRA15539.

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  • One state — $4,990/year
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Nearby on the register

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

What this page shows

The CYTEC-SOLVAY GROUNDWATER REMEDIATION PROJECT is one of 39 storm water construction permits on EPA's NPDES register in Michigan City, Indiana, including this one. Of those 39 permits, 46.2% were issued earlier than this one, which was issued March 11, 2025. Among the 39 storm water construction permits in Michigan City, 0.0% have a violation on file, and this permit has none of the recorded pollutants with a numeric limit or effluent exceedance (both counted as 0).