Clean Water Act discharge permit · NPDES IL0062634

KARNAK STP, VILLAGE OF, Karnak, IL: NPDES IL0062634 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
9Pollutants under a numeric limit
5Pollutants with an effluent exceedance

KARNAK STP, VILLAGE OF, held by KARNAK, VILLAGE OF, holds NPDES permit IL0062634, which discharges to Unnamed Trib Of Post Creek Cutoff. EPA’s file records it issued June 26, 2018 and expiring June 30, 2023. 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	KARNAK STP, VILLAGE OF
Permittee as filed	KARNAK, VILLAGE OF
NPDES ID	IL0062634
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	June 26, 2018
Expiration date	June 30, 2023
Address	Karnak, IL 62956
Receiving water	UNNAMED TRIB OF POST CREEK CUTOFF
Subwatershed	Post Creek Cutoff (HUC 051402060509)
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

9Pollutants on file
9Under a numeric limit
9With 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
Chlorine, total residual	1	93	23	October 31, 2007	1,900% over the limit
Coliform, fecal general	1	84	17	July 31, 2025	99,999% over the limit
BOD, carbonaceous [5 day, 20 C]	4	279	7	March 31, 2022	156% over the limit
Solids, total suspended	5	340	5	February 28, 2026	34% over the limit
Oxygen, dissolved [DO]	5	110	5	March 31, 2016	85% over the limit
Flow, in conduit or thru treatment plant	4	266	0
pH	2	134	0
BOD, 5-day, 20 deg. C	1	67	0
Nitrogen, ammonia total [as N]	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

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES IL0062634.

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 IL0062634 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 IL0062634, held by KARNAK, VILLAGE OF for the KARNAK STP, VILLAGE OF facility in Karnak, IL, which discharges to UNNAMED TRIB OF POST CREEK CUTOFF in the Post Creek Cutoff subwatershed (HUC 051402060509). The permit is listed as administratively continued, with 9 pollutants under a numeric limit and 5 pollutants with an effluent exceedance on file.