Clean Water Act discharge permit · NPDES IL0041203

ATHENS STP, CITY OF, Athens, IL: NPDES IL0041203 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
11Pollutants under a numeric limit
6Pollutants with an effluent exceedance

ATHENS STP, CITY OF, held by ATHENS, CITY OF, holds NPDES permit IL0041203, which discharges to Town Branch. EPA’s file records it issued September 22, 2017 and expiring September 30, 2022. 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	ATHENS STP, CITY OF
Permittee as filed	ATHENS, CITY OF
NPDES ID	IL0041203
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	September 22, 2017
Expiration date	September 30, 2022
Address	Athens, IL 62613
Receiving water	TOWN BRANCH
Subwatershed	Town Branch-Sangamon River (HUC 071300080406)
Program components on file	Biosolids, POTW
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

11Pollutants on file
11Under a numeric limit
11With a violation of any kind
6With 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
Phosphorus, total [as P]	2	79	79	April 30, 2026	570% over the limit
Nitrogen, ammonia total [as N]	14	132	30	September 30, 2017	152% over the limit
Solids, total suspended	5	151	26	June 30, 2022	346% over the limit
Coliform, fecal general	1	25	12	July 31, 2021	99,999% over the limit
BOD, carbonaceous [5 day, 20 C]	4	110	10	October 31, 2015	74% over the limit
Oxygen, dissolved [DO]	5	63	3	December 31, 2006	38% over the limit
Flow, in conduit or thru treatment plant	4	108	0
Chlorine, total residual	1	72	0
pH	2	48	0
BOD, 5-day, 20 deg. C	1	25	0
Nitrogen, total [as N]	1	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 IL0041203.

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 IL0041203 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 IL0041203 for ATHENS STP, CITY OF in Athens, IL, held by ATHENS, CITY OF, which discharges to Town Branch. The page lists 11 pollutants under a numeric limit and 6 pollutants with an effluent exceedance, with the permit shown as administratively continued and past its September 30, 2022 expiration date.