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Clean Water Act discharge permit · NPDES IN0061077

US GRAND CALUMET DREDGING, Gary, IN: NPDES IN0061077 discharge permit, effluent exceedances, inspections, penalties

US GRAND CALUMET DREDGING, held by US STEEL GRAND CALUMET RIVER DREDGING, holds NPDES permit IN0061077, which discharges to Lake Michigan Via Grand Calumet R. EPA’s file records it issued March 17, 2017 and expiring May 31, 2022.

Identity

Facility as filedUS GRAND CALUMET DREDGING
Permittee as filedUS STEEL GRAND CALUMET RIVER DREDGING
NPDES IDIN0061077
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMajor discharger
Facility typeNot a publicly owned treatment works
IssuedMarch 17, 2017
Expiration dateMay 31, 2022
Issuing agencyIDEM
AddressGary, IN 46401
Receiving waterLAKE MICHIGAN VIA GRAND CALUMET R
Receiving water impaired303(D) Listed
SubwatershedHeadwaters Grand Calumet River (HUC 071200030406)
SIC3312 – Blast Furnaces And Steel Mills

Effluent limits and exceedances

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 measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
Solids, total suspended411July 31, 201162% over the limit
Fluorene411October 31, 2008117% over the limit
Polychlorinated biphenyls [PCBs]411December 31, 200647% over the limit
Thallium, total recoverable840
Manganese, total recoverable840
Selenium, total recoverable440
Copper, total recoverable440
Mercury, total recoverable440
Oil & Grease040
Toxicity [acute], Ceriodaphnia dubia040
Toxicity [acute], Pimephales promelas [Fathead Minnow]040
TU Static 48Hr Acute Daphnia pulex040
pH220
Flow, in conduit or thru treatment plant220
Flow, total110
Nitrogen, ammonia total [as N]800
Oil and grease, hexane extr method400
Cyanide, free [as free]400
Cyanide, free [amenable to chlorination]400
Chloride [as Cl]400
Nickel, total recoverable400
Zinc, total recoverable400
Lead, total recoverable400
Chromium, total recoverable400
Vanadium, total recoverable400
Benzene400
Acenaphthylene400
Acenaphthene400
Anthracene400
Chrysene400
Phenanthrene400
2,4-Dimethylphenol400
Naphthalene400
.alpha.-Terpineol400
Pyridine400
Aniline400
Benzoic acids, total400
Naphthenic acid400
4-Methylphenol400
Dibenzofuran400

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES IN0061077.

Inspections

DateWhat EPA recordedAgency
July 16, 2026EvaluationS

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 IN0061077.

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Nearby on the register

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

What this page shows

This public-records page covers Clean Water Act NPDES discharge permit IN0061077, held by US STEEL GRAND CALUMET RIVER DREDGING for the US GRAND CALUMET DREDGING facility in Gary, IN, which discharges to Lake Michigan via Grand Calumet R. The page lists a Major Discharger class, 3 pollutants under a numeric limit, and 3 pollutants with an effluent exceedance, and the permit is shown as administratively continued.