Clean Water Act discharge permit · NPDES IN0056910
EXXONMOBIL OIL CORP - EAST CHICAGO TERMINAL, East Chicago, IN: NPDES IN0056910 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 8Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
EXXONMOBIL OIL CORP - EAST CHICAGO TERMINAL, held by EXXONMOBIL OIL CORP - E CHICAGO TERMINAL, holds NPDES permit IN0056910, which discharges to Lake George Canal (Indiana Harbor Ship Canal). EPA’s file records it issued January 27, 2017 and expiring February 28, 2022. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | EXXONMOBIL OIL CORP - EAST CHICAGO TERMINAL |
|---|---|
| Permittee as filed | EXXONMOBIL OIL CORP - E CHICAGO TERMINAL |
| NPDES ID | IN0056910 |
| 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 | January 27, 2017 |
| Expiration date | February 28, 2022 |
| Issuing agency | IDEM |
| Address | East Chicago, IN 46312 |
| Receiving water | LAKE GEORGE CANAL (INDIANA HARBOR SHIP CANAL) |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Calumet River-Frontal Lake Michigan (HUC 040400010603) |
| SIC | 5541 – Gasoline Service Stations |
| Other EPA IDs (FRS) | RCRA handler IND042329631; ICIS-AIR source IN0000001808900320 |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 10Pollutants on file
- 8Under a numeric limit
- 10With a violation of any kind
- 7With 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 |
|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | 8 | 38 | 22 | October 31, 2007 | 357% over the limit |
| Chlorine, total residual | 4 | 32 | 16 | April 30, 2010 | 396% over the limit |
| Benzene | 2 | 28 | 10 | January 31, 2016 | 1,766% over the limit |
| Solids, total suspended | 4 | 25 | 5 | September 30, 2000 | 165% over the limit |
| Oil & Grease | 0 | 25 | 5 | May 31, 2006 | 147% over the limit |
| Zinc, total recoverable | 0 | 20 | 4 | November 30, 2005 | 284% over the limit |
| Oil and grease, hexane extr method | 4 | 1 | 1 | June 30, 2022 | 9% over the limit |
| pH | 2 | 10 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 10 | 0 | ||
| Flow, total | 1 | 5 | 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 IN0056910.
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.
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, IN0056910.
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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 IN0056910 there.
Nearby on the register
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- Every permit record in East Chicago, A to Z
- Discharge permits in Indiana
- Every permit record in Indiana, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.