Clean Water Act discharge permit · NPDES IL0049166

ESSINGTON COMMONS STP, Plainfield, IL: NPDES IL0049166 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
9Pollutants under a numeric limit
4Pollutants with an effluent exceedance

ESSINGTON COMMONS STP, held by IL AMERICAN WATER-ESSINGTON, holds NPDES permit IL0049166, which discharges to Mink Creek. EPA’s file records it issued June 27, 2005 and expiring August 31, 2010. 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	ESSINGTON COMMONS STP
Permittee as filed	IL AMERICAN WATER-ESSINGTON
NPDES ID	IL0049166
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	June 27, 2005
Expiration date	August 31, 2010
Address	Plainfield, IL 60544
Receiving water	MINK CREEK
Subwatershed	Lily Cache Creek (HUC 071200040807)
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
8With 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	11	3	November 30, 2007	60% over the limit
Solids, total suspended	5	8	3	November 30, 2011	63% over the limit
Nitrogen, ammonia total [as N]	58	16	2	November 30, 2007	346% over the limit
Chlorine, total residual	2	9	1	June 30, 2001	900% over the limit
Flow, in conduit or thru treatment plant	4	4	0
pH	2	2	0
Oxygen, dissolved [DO]	2	1	0
BOD, 5-day, 20 deg. C	1	1	0
Coliform, fecal general	1	0	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 IL0049166.

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.

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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 IL0049166 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

This public-records page covers NPDES permit IL0049166 for ESSINGTON COMMONS STP in Plainfield, IL, held by IL AMERICAN WATER-ESSINGTON and discharging to MINK CREEK within the Lily Cache Creek subwatershed (HUC 071200040807). The permit is listed as administratively continued, with 4 pollutants with an effluent exceedance and 4 pollutants under a numeric limit among the 9 pollutants on file. The permit was issued June 27, 2005 and carried an expiration date of August 31, 2010.