Clean Water Act discharge permit · NPDES IL0029301

JOHNSTON CITY STP, CITY OF, Johnston City, IL: NPDES IL0029301 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
11Pollutants under a numeric limit
4Pollutants with an effluent exceedance

JOHNSTON CITY STP, CITY OF, held by JOHNSTON CITY, CITY OF, holds NPDES permit IL0029301, which discharges to Lake Creek. EPA’s file records it issued May 1, 2019 and expiring April 30, 2024. 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	JOHNSTON CITY STP, CITY OF
Permittee as filed	JOHNSTON CITY, CITY OF
NPDES ID	IL0029301
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	May 1, 2019
Expiration date	April 30, 2024
Address	Johnston City, IL 62951
Receiving water	LAKE CREEK
Receiving water impaired	303(D) Listed
Subwatershed	Lake Creek (HUC 071401060502)

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

Effluent limits and exceedances

11Pollutants on file
11Under a numeric limit
11With 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
BOD, carbonaceous [5 day, 20 C]	4	54	42	June 30, 2023	188% over the limit
Nitrogen, ammonia total [as N]	49	41	36	June 30, 2023	567% over the limit
Chlorine, total residual	2	7	1	April 30, 2020	100% over the limit
Coliform, fecal general	2	3	1	April 30, 2018	1,269% over the limit
Solids, total suspended	6	8	0
pH	4	8	0
Flow, in conduit or thru treatment plant	4	4	0
BOD, 5-day, 20 deg. C	2	4	0
Oxygen, dissolved [DO]	5	3	0
Flow, total	1	2	0
Phosphorus, total [as P]	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 IL0029301.

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, IL0029301.

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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 IL0029301 there.

Nearby on the register

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

This public-records page covers the Clean Water Act NPDES discharge permit IL0029301 held by Johnston City, City of, for the JOHNSTON CITY STP, CITY OF facility in Johnston City, IL, which discharges to Lake Creek. The permit is listed as administratively continued and a minor discharger, with 11 pollutants on file, 11 under a numeric limit, and 4 with an effluent exceedance.