Clean Water Act discharge permit · NPDES ILL028746

ELMHURST STP, CITY OF, Elmhurst, IL: NPDES ILL028746 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

ELMHURST STP, CITY OF, held by ELMHURST, CITY OF, holds NPDES permit ILL028746. EPA’s file records it issued January 1, 2021 and expiring December 31, 2025.

ELMHURST STP, CITY OF, Elmhurst, Illinois: Associated permit record ILL028746, held by ELMHURST, CITY OF; Biosolids; Administratively continued (past its expiration date and still in force until reissued); issued January 1, 2021, term to December 31, 2025.

Arsenic, dry weight: 0 limits, 12 violations of any kind, 0 effluent exceedances.
Selenium, dry weight: 0 limits, 12 violations of any kind, 0 effluent exceedances.
Copper, dry weight: 0 limits, 12 violations of any kind, 0 effluent exceedances.
Cadmium, dry weight: 0 limits, 12 violations of any kind, 0 effluent exceedances.
Zinc, sludge, total, dry weight [as Zn]: 0 limits, 12 violations of any kind, 0 effluent exceedances.
Lead, sludge, total, dry weight [as Pb]: 0 limits, 12 violations of any kind, 0 effluent exceedances.
Nickel, sludge, total, dry weight [as Ni]: 0 limits, 12 violations of any kind, 0 effluent exceedances.
Mercury, sludge, total, dry weight [as Hg]: 0 limits, 12 violations of any kind, 0 effluent exceedances.
Molybdenum, sludge, total, dry weight [as Mo]: 0 limits, 8 violations of any kind, 0 effluent exceedances.
Pollutant table from 503.13: 0 limits, 4 violations of any kind, 0 effluent exceedances.
Level of pathogen requirements achieved: 0 limits, 4 violations of any kind, 0 effluent exceedances.
Description of pathogen option used: 0 limits, 4 violations of any kind, 0 effluent exceedances.
Vector attraction reduction alternative used: 0 limits, 4 violations of any kind, 0 effluent exceedances.
Ann. amt sludge disposed by other method: 0 limits, 1 violation of any kind, 0 effluent exceedances.
Annual amt of sludge incinerated: 0 limits, 1 violation of any kind, 0 effluent exceedances.
Annual sludge production, total: 0 limits, 1 violation of any kind, 0 effluent exceedances.
Annual amount of sludge land applied: 0 limits, 1 violation of any kind, 0 effluent exceedances.
Annual amt. sludge disposed surface unit: 0 limits, 1 violation of any kind, 0 effluent exceedances.
Annual amt sludge disposed in landfill: 0 limits, 1 violation of any kind, 0 effluent exceedances.
Annual amt sludge transported interstate: 0 limits, 1 violation of any kind, 0 effluent exceedances.

Illinois holds 270 Biosolids coverages of this permit type in EPA’s file; 0 were issued before ILL028746.

Coverages issued nearest ILL028746

January 1, 2021: EAST PEORIA STP #1, CITY OF, East Peoria, ILL028576, held by EAST PEORIA, CITY OF
January 1, 2021: EFFINGHAM STP, CITY OF, Effingham, ILL028622, held by EFFINGHAM, CITY OF
January 1, 2021: ELDORADO STP, CITY OF, Eldorado, ILL028649, held by CITY OF ELDORADO
January 1, 2021: FOX RIVER WRD - ALBIN D. PAGORSKI WRF, Elgin, ILL028657, held by FOX RIVER WATER RECLAMATION DISTRICT
January 1, 2021: FOX RIVER WRD - NORTH STP, Elgin, ILL028665, held by FOX RIVER WATER RECLAMATION DISTRICT
January 1, 2021: FULTON STP, CITY OF, Fulton, ILL028860, held by FULTON STP
January 1, 2021: GARDNER STP, VILLAGE OF, Gardner, ILL028894, held by GARDNER STP
January 1, 2021: GIRARD WWTP, CITY OF, Girard, ILL028932, held by GIRARD WWTP
January 1, 2021: GLENDALE HEIGHTS, VILLAGE OF, Glendale Heights, ILL028967, held by GLENDALE HEIGHTS STP
January 1, 2021: HARRISBURG STP, CITY OF, Harrisburg, ILL029149, held by HARRISBURG, CITY OF

ELMHURST STP, CITY OF among its neighbors

EPA’s permit file holds 103 discharge permits in the Lower Salt Creek subwatershed (HUC 071200040404), ILL028746 among them. Its county holds 204, 23 of them major permits; ILL028746 is a minor permit.

Other permits in the Lower Salt Creek subwatershed (HUC 071200040404)

10 TEMPLETON DRIVE, Oak Brook: ILR10ZDQB, minor permit, permit term to August 31, 2028
12 HUNT CLUB LANE OAK BROOK, Oak Brook: ILR10ZDLI, minor permit, permit term to August 31, 2028
121 INDIAN TRAIL RD, OAK BROOK, Oak Brook: ILR10ZDCE, minor permit, permit term to August 31, 2028
13 TEMPLETON DRIVE, OAK BROOK, Oak Brook: ILR10ZDLL, minor permit, permit term to August 31, 2028
1308~1320 MEYERS ROAD, Lombard: ILR10ZEZ5, minor permit, permit term to August 31, 2028
2025 WATER MAIN IMPROVEMENTS, Brookfield: ILR10ZF49, minor permit, permit term to August 31, 2028
222 OAK BROOK ROAD, Oak Brook: ILR10ZDGS, minor permit, permit term to August 31, 2028
22ND STREET MULTI-USE PATH, Lombard: ILR10ZDU8, minor permit, permit term to August 31, 2028
2901 AVENUE LOIRE, Oak Brook: ILR10ZDOE, minor permit, permit term to August 31, 2028
301 W. GERRI LANE ADDISON IL PARKING LOT IMPROVEMENTS, Addison: ILR10ZEOD, minor permit, permit term to August 31, 2028

Identity

Facility as filed	ELMHURST STP, CITY OF
Permittee as filed	ELMHURST, CITY OF
NPDES ID	ILL028746
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Associated permit record
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Program	Biosolids
Issued	January 1, 2021
Expiration date	December 31, 2025
Address	Elmhurst, IL 60126
Receiving water impaired	303(D) Listed
Subwatershed	Lower Salt Creek (HUC 071200040404)

Effluent limits and exceedances

20Pollutants on file
0Under a numeric limit
20With 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
Arsenic, dry weight	0	12	0
Selenium, dry weight	0	12	0
Copper, dry weight	0	12	0
Cadmium, dry weight	0	12	0
Zinc, sludge, total, dry weight [as Zn]	0	12	0
Lead, sludge, total, dry weight [as Pb]	0	12	0
Nickel, sludge, total, dry weight [as Ni]	0	12	0
Mercury, sludge, total, dry weight [as Hg]	0	12	0
Molybdenum, sludge, total, dry weight [as Mo]	0	8	0
Pollutant table from 503.13	0	4	0
Level of pathogen requirements achieved	0	4	0
Description of pathogen option used	0	4	0
Vector attraction reduction alternative used	0	4	0
Ann. amt sludge disposed by other method	0	1	0
Annual amt of sludge incinerated	0	1	0
Annual sludge production, total	0	1	0
Annual amount of sludge land applied	0	1	0
Annual amt. sludge disposed surface unit	0	1	0
Annual amt sludge disposed in landfill	0	1	0
Annual amt sludge transported interstate	0	1	0

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES ILL028746.

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES ILL028746.

Inspections

EPA’s inspection file holds no inspection for NPDES ILL028746.

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 ILL028746.

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

Of all 27 biosolids permits in DuPage County, 3.7% were issued earlier than the permit held by ELMHURST STP, CITY OF. The Lower Salt Creek subwatershed lists 103 NPDES permits including this permit. 51.9% of those 27 biosolids permits carry a violation on file.