Clean Water Act discharge permit · NPDES IN0061794

FORMER NIPSCO MGP, Hammond, IN: NPDES IN0061794 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
0Pollutants under a numeric limit
0Pollutants with an effluent exceedance
0Inspections on file
0Formal enforcement actions

FORMER NIPSCO MGP, held by FORMER NIPSCO MANUFACTURED GAS PLANT, holds NPDES permit IN0061794, which discharges to Grand Calumet River. EPA’s file records it issued June 30, 2003 and expiring July 31, 2008.

FORMER NIPSCO MGP, Hammond, Indiana: Individual permit IN0061794, held by FORMER NIPSCO MANUFACTURED GAS PLANT; Administratively continued (past its expiration date and still in force until reissued); issued June 30, 2003, term to July 31, 2008, by IDEM; discharges to GRAND CALUMET RIVER.

Cyanide, free [amenable to chlorination]: 0 limits, 16 violations of any kind, 0 effluent exceedances.
pH: 0 limits, 12 violations of any kind, 0 effluent exceedances.
Benzene, ethylbenzene, toluene, xylene combination: 0 limits, 12 violations of any kind, 0 effluent exceedances.
Toluene: 0 limits, 12 violations of any kind, 0 effluent exceedances.
Benzene: 0 limits, 12 violations of any kind, 0 effluent exceedances.
Ethylbenzene: 0 limits, 12 violations of any kind, 0 effluent exceedances.
Naphthalene: 0 limits, 12 violations of any kind, 0 effluent exceedances.
Flow, in conduit or thru treatment plant: 0 limits, 12 violations of any kind, 0 effluent exceedances.
Xylene [mix of m+o+p]: 0 limits, 12 violations of any kind, 0 effluent exceedances.
Cyanide, weak acid, dissociable: 0 limits, 8 violations of any kind, 0 effluent exceedances.
Flow, total: 0 limits, 6 violations of any kind, 0 effluent exceedances.

FORMER NIPSCO MGP among its neighbors

EPA’s permit file holds 52 discharge permits in the Grand Calumet River-Little Calumet River subwatershed (HUC 071200030407), IN0061794 among them. Its county holds 204, 18 of them major permits; IN0061794 is a minor permit.

Other permits in the Grand Calumet River-Little Calumet River subwatershed (HUC 071200030407)

120TH YARD AND SHOP - ADVANCE EARTHWORK, Chicago: ILR10ZGPC, minor permit, permit term to August 31, 2028
1717 SUMMER ST - TEMPORARY TRUCK PARKING, Hammond: INRA15169, minor permit, permit term to December 17, 2029
2022 PAVEMENT REHABILITATION PROGRAM - SOUTH CORRIDORS PACKAGE 2, Orland Park: ILR10ZGBC, minor permit, permit term to August 31, 2028
ARDAGH GLASS INC, Dolton: ILR003551, minor permit, permit term to June 1, 2008
ASHLAND CHEM. INC. SP&A DIV., Calumet City: ILR001047, minor permit, discharging to CALUMET RIVER, permit term to June 1, 2008
AZCON CORP.-CHICAGO, Chicago: ILR002806, minor permit, permit term to June 1, 2008
BEAUBIEN WOODS, Chicago: ILR10ZGRS, minor permit, permit term to August 31, 2028
BURNHAM CSOS, VILLAGE OF, Burnham: ILM580018, minor permit, discharging to CALUMET RIVER, permit term to May 31, 2008
CALUMET CITY CSOS, Calumet City: ILM580025, minor permit, discharging to GRAND AND LITTLE CALUMET RIVER, permit term to May 31, 2008
CALUMET CITY USEDA INDUSTRIAL PARK, Calumet City: ILR10ZDBH, minor permit, permit term to August 31, 2028

Identity

Facility as filed	FORMER NIPSCO MGP
Permittee as filed	FORMER NIPSCO MANUFACTURED GAS PLANT
NPDES ID	IN0061794
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	June 30, 2003
Expiration date	July 31, 2008
Issuing agency	IDEM
Address	Hammond, IN 46320
Receiving water	GRAND CALUMET RIVER
Receiving water impaired	303(D) Listed
Subwatershed	Grand Calumet River-Little Calumet River (HUC 071200030407)
SIC	4924 – Natural Gas Distribution

Effluent limits and exceedances

11Pollutants on file
0Under a numeric limit
11With a violation of any kind
0With 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
Cyanide, free [amenable to chlorination]	0	16	0
pH	0	12	0
Benzene, ethylbenzene, toluene, xylene combination	0	12	0
Toluene	0	12	0
Benzene	0	12	0
Ethylbenzene	0	12	0
Naphthalene	0	12	0
Flow, in conduit or thru treatment plant	0	12	0
Xylene [mix of m+o+p]	0	12	0
Cyanide, weak acid, dissociable	0	8	0
Flow, total	0	6	0

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES IN0061794.

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES IN0061794.

Inspections

EPA’s inspection file holds no inspection for NPDES IN0061794.

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 IN0061794.

Watch this permit

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Nearby on the register

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

FORMER NIPSCO MGP's permit is among 68 individual permits in Lake County on EPA's NPDES register, and 4.4% of that group, this permit included, were issued before it. Of those 68 Lake County permits, 61.8% have a violation on file. Within the Grand Calumet River-Little Calumet River subwatershed, 27 NPDES permits are counted, this permit among them.