Clean Water Act discharge permit · NPDES ILG580164

WEST SALEM STP, VILLAGE OF, West Salem, IL: NPDES ILG580164 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
9Pollutants under a numeric limit
3Pollutants with an effluent exceedance

WEST SALEM STP, VILLAGE OF, held by WEST SALEM, VILLAGE OF, holds NPDES permit ILG580164, which discharges to Unnamed Tributary Of Walsher Creek. EPA’s file records it issued December 9, 2014 and expiring June 30, 2018. 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	WEST SALEM STP, VILLAGE OF
Permittee as filed	WEST SALEM, VILLAGE OF
NPDES ID	ILG580164
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Publicly owned treatment works
Program	Publicly owned treatment works
Issued	December 9, 2014
Expiration date	June 30, 2018
Address	West Salem, IL 62476
Receiving water	UNNAMED TRIBUTARY OF WALSHER CREEK
Subwatershed	Walser Creek-Bonpas Creek (HUC 051201130405)

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

Effluent limits and exceedances

9Pollutants on file
9Under a numeric limit
9With a violation of any kind
3With 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
Oxygen, dissolved [DO]	1	22	16	July 31, 2026	43% over the limit
BOD, carbonaceous [5 day, 20 C]	4	53	7	May 31, 2016	77% over the limit
Solids, total suspended	5	56	6	December 31, 2004	179% over the limit
Flow, in conduit or thru treatment plant	4	40	0
pH	2	23	0
BOD, 5-day, 20 deg. C	1	11	0
Chlorine, total residual	1	10	0
Nitrogen, ammonia total [as N]	1	6	0
Coliform, fecal general	1	3	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

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES ILG580164.

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, ILG580164.

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 ILG580164 there.

Nearby on the register

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

This public-records page covers NPDES permit ILG580164 for WEST SALEM STP, VILLAGE OF, a publicly owned treatment works in West Salem, IL, which discharges to Unnamed Tributary Of Walsher Creek. The permit is listed as administratively continued, with a discharger class of Minor, 3 pollutants under a numeric limit, and 3 pollutants with an effluent exceedance, as of September 15, 2026.