Clean Water Act discharge permit · NPDES IL0020061

WOOD DALE NORTH STP, CITY OF, Wood Dale, IL: NPDES IL0020061 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MajorDischarger class
14Pollutants under a numeric limit
2Pollutants with an effluent exceedance

WOOD DALE NORTH STP, CITY OF, held by WOOD DALE, CITY OF, holds NPDES permit IL0020061, which discharges to Salt Creek. EPA’s file records it issued May 19, 2011 and expiring May 31, 2016. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filed	WOOD DALE NORTH STP, CITY OF
Permittee as filed	WOOD DALE, CITY OF
NPDES ID	IL0020061
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual permit
Discharger class	Major discharger
Facility type	Publicly owned treatment works
Program	Publicly owned treatment works
Issued	May 19, 2011
Expiration date	May 31, 2016
Address	Wood Dale, IL 60191
Receiving water	SALT CREEK
Receiving water impaired	303(D) Listed
Subwatershed	Middle Salt Creek (HUC 071200040402)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

14Pollutants on file
14Under a numeric limit
4With a violation of any kind
2With 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
Coliform, fecal general	2	4	4	June 30, 2021	11,950% over the limit
Nitrogen, ammonia total [as N]	50	14	1	May 31, 2009	9% over the limit
Chlorine, total residual	3	18	0
Mercury, total [as Hg]	2	2	0
Solids, total suspended	6	0	0
Oxygen, dissolved [DO]	5	0	0
pH	4	0	0
Flow, in conduit or thru treatment plant	4	0	0
BOD, carbonaceous [5 day, 20 C]	4	0	0
BOD, 5-day, 20 deg. C	2	0	0
Nitrogen, total [as N]	2	0	0
Phosphorus, total [as P]	2	0	0
Chloride [as Cl]	2	0	0
Flow, total	1	0	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

7Single-event violations

Date	What EPA recorded	Agency
July 3, 2026	Wet-weather SSO discharge to waters of the U.S. that may endanger health or the environment	ST6
July 3, 2026	Wet-weather SSO discharge to waters of the U.S. that may endanger health or the environment	ST6
April 15, 2026	Wet-weather SSO discharge to waters of the U.S. that may endanger health or the environment	ST6
April 15, 2026	Wet-weather SSO discharge to waters of the U.S. that may endanger health or the environment	ST6
March 15, 2026	Wet-weather SSO discharge to waters of the U.S. that may endanger health or the environment	ST6
January 8, 2026	Wet-weather SSO discharge to waters of the U.S. that may endanger health or the environment	ST6
January 31, 2025	Wet-weather SSO discharge to waters of the U.S. that may endanger health or the environment	ST6

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.

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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 IL0020061 there.

Nearby on the register

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

This public-records page covers NPDES permit IL0020061, held by WOOD DALE, CITY OF for the WOOD DALE NORTH STP, CITY OF facility in Wood Dale, IL, which discharges to Salt Creek. The permit is listed as administratively continued, with 14 pollutants on file, 2 of them under a numeric limit, and 2 showing an effluent exceedance.