Clean Water Act discharge permit · NPDES ILG580189

HANOVER STP, VILLAGE OF, Hanover, IL: NPDES ILG580189 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
8Pollutants under a numeric limit
4Pollutants with an effluent exceedance

HANOVER STP, VILLAGE OF, held by HANOVER, VILLAGE OF, holds NPDES permit ILG580189, which discharges to Apple River. EPA’s file records it issued November 21, 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	HANOVER STP, VILLAGE OF
Permittee as filed	HANOVER, VILLAGE OF
NPDES ID	ILG580189
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 21, 2014
Expiration date	June 30, 2018
Address	Hanover, IL 61041
Receiving water	APPLE RIVER
Subwatershed	Apple River (HUC 070600050605)

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

Effluent limits and exceedances

9Pollutants on file
8Under 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	56	46	April 30, 2020	180% over the limit
Oxygen, dissolved [DO]	0	9	9	July 31, 2026	38% over the limit
pH	2	12	8	April 30, 2026
BOD, carbonaceous [5 day, 20 C]	4	15	7	February 28, 2017	47% over the limit
Chlorine, total residual	1	40	0
Flow, in conduit or thru treatment plant	4	12	0
Nitrogen, ammonia total [as N]	1	3	0
BOD, 5-day, 20 deg. C	1	2	0
Coliform, fecal general	1	2	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

2Single-event violations

Date	What EPA recorded	Agency
July 30, 2025	Wet-weather SSO discharge to waters of the U.S. that may endanger health or the environment	ST6
July 28, 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.

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, ILG580189.

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 ILG580189 there.

Nearby on the register

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

This public-records page covers NPDES permit ILG580189 held by HANOVER, VILLAGE OF for HANOVER STP, VILLAGE OF in Hanover, IL, which discharges to Apple River in the Apple River subwatershed (HUC 070600050605). The EPA file lists a Minor Discharger class, 8 pollutants under a numeric limit and 4 pollutants with an effluent exceedance, with the permit shown as administratively continued.