Clean Water Act discharge permit · NPDES IL0025062

GILMAN NORTH STP, CITY OF, Gilman, IL: NPDES IL0025062 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
10Pollutants under a numeric limit
5Pollutants with an effluent exceedance

GILMAN NORTH STP, CITY OF, held by GILMAN, CITY OF, holds NPDES permit IL0025062, which discharges to Gilman Ditch. EPA’s file records it issued November 16, 2017 and expiring October 31, 2022. 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	GILMAN NORTH STP, CITY OF
Permittee as filed	GILMAN, CITY OF
NPDES ID	IL0025062
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual permit
Discharger class	Minor discharger
Facility type	Publicly owned treatment works
Program	Publicly owned treatment works
Issued	November 16, 2017
Expiration date	October 31, 2022
Address	Gilman, IL 60938
Receiving water	GILMAN DITCH
Subwatershed	Spring Creek (HUC 071200020808)

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

Effluent limits and exceedances

10Pollutants on file
10Under a numeric limit
10With a violation of any kind
5With 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]	9	36	20	November 30, 2025	80% over the limit
Nitrogen, ammonia total [as N]	23	31	9	August 31, 2018	715% over the limit
Coliform, fecal general	2	10	7	June 30, 2026	99,999% over the limit
Solids, total suspended	8	23	4	August 31, 2018	247% over the limit
pH	6	15	3	May 31, 2025
Flow, in conduit or thru treatment plant	4	13	0
BOD, carbonaceous [5 day, 20 C]	4	12	0
BOD, 5-day, 20 deg. C	4	7	0
Chlorine, total residual	3	6	0
Flow, total	2	4	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 IL0025062.

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

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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 IL0025062 there.

Nearby on the register

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

This public-records page covers NPDES permit IL0025062 for the GILMAN NORTH STP, CITY OF in Gilman, IL, held by GILMAN, CITY OF, which discharges to Gilman Ditch within the Spring Creek watershed (HUC 071200020808). The permit is listed as administratively continued, issued November 16, 2017 and expiring October 31, 2022, with 10 pollutants on file, 10 under a numeric limit, 10 with a violation of any kind, and 5 with an effluent exceedance.