Clean Water Act discharge permit · NPDES ILG580109

PERCY STP, VILLAGE OF, Percy, IL: NPDES ILG580109 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
9Pollutants under a numeric limit
4Pollutants with an effluent exceedance

PERCY STP, VILLAGE OF, held by PERCY, VILLAGE OF, holds NPDES permit ILG580109, which discharges to Unnamed Trib Of North Fork Cox Creek. EPA’s file records it issued November 19, 2014 and expiring June 30, 2018. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filed	PERCY STP, VILLAGE OF
Permittee as filed	PERCY, VILLAGE OF
NPDES ID	ILG580109
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	November 19, 2014
Expiration date	June 30, 2018
Address	Percy, IL 62272
Receiving water	UNNAMED TRIB OF NORTH FORK COX CREEK
Subwatershed	Cox Creek (HUC 071401050201)
SIC	4952 – Sewerage Systems

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.

Effluent limits and exceedances

9Pollutants on file
9Under a numeric limit
9With a violation of any kind
4With 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
Solids, total suspended	5	356	243	September 30, 2020	371% over the limit
BOD, carbonaceous [5 day, 20 C]	4	157	73	April 30, 2020	148% over the limit
Oxygen, dissolved [DO]	1	34	28	November 30, 2022	75% over the limit
pH	2	49	1	April 30, 2015
Flow, in conduit or thru treatment plant	4	98	0
BOD, 5-day, 20 deg. C	1	25	0
Chlorine, total residual	1	24	0
Nitrogen, ammonia total [as N]	1	6	0
Coliform, fecal general	1	1	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 ILG580109.

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 ILG580109 there.

Nearby on the register

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

This public-records page covers Clean Water Act discharge permit NPDES ILG580109 for PERCY STP, VILLAGE OF in Percy, IL, a publicly owned treatment works that discharges to UNNAMED TRIB OF NORTH FORK COX CREEK in the Cox Creek subwatershed (HUC 071401050201). The permit is listed as administratively continued with a minor discharger class, with 4 pollutants under a numeric limit and 4 pollutants showing an effluent exceedance.