Clean Water Act discharge permit · NPDES IL0079138

MCCOOK RESEVOIR, Willow Springs, IL: NPDES IL0079138 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
4Pollutants under a numeric limit
0Pollutants with an effluent exceedance

MCCOOK RESEVOIR, held by U.S. ARMY CORP OF ENGINEERS - CHICAGO DISTRICT, holds NPDES permit IL0079138, which discharges to Chicago Sanitary & Ship Canal. EPA’s file records it issued December 23, 2009 and expiring November 30, 2014. 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	MCCOOK RESEVOIR
Permittee as filed	U.S. ARMY CORP OF ENGINEERS - CHICAGO DISTRICT
NPDES ID	IL0079138
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	December 23, 2009
Expiration date	November 30, 2014
Address	Willow Springs, IL 60480
Receiving water	CHICAGO SANITARY & SHIP CANAL
Receiving water impaired	303(D) Listed
Subwatershed	Goose Lake-Des Plaines River (HUC 071200040706)

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

Effluent limits and exceedances

4Pollutants on file
4Under a numeric limit
4With 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
pH	2	94
Solids, total suspended	2	94
Flow, in conduit or thru treatment plant	2	94
Offensive Conditions	1	46

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES IL0079138.

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 IL0079138.

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, IL0079138.

Start the watch

How we handle your data → Privacy

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 IL0079138 there.

Nearby on the register

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

This public-records page covers Clean Water Act discharge permit NPDES IL0079138 for MCCOOK RESEVOIR in Willow Springs, IL, held by U.S. ARMY CORP OF ENGINEERS - CHICAGO DISTRICT, which discharges to the Chicago Sanitary & Ship Canal. The permit is administratively continued, classed as a Minor Discharger class 4, and was issued December 23, 2009 with an expiration date of November 30, 2014. The figures listed are 0 pollutants under a numeric limit and 0 pollutants with an effluent exceedance.