Clean Water Act discharge permit · NPDES IL0021849

BENSENVILLE - SOUTH STP, VILLAGE OF, Bensenville, IL: NPDES IL0021849 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MajorDischarger class
41Pollutants under a numeric limit
9Pollutants with an effluent exceedance

BENSENVILLE - SOUTH STP, VILLAGE OF, held by BENSENVILLE, VILLAGE OF, holds NPDES permit IL0021849, which discharges to Addison Creek. EPA’s file records it issued October 23, 2015 and expiring October 31, 2020. 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	BENSENVILLE - SOUTH STP, VILLAGE OF
Permittee as filed	BENSENVILLE, VILLAGE OF
NPDES ID	IL0021849
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual permit
Discharger class	Major discharger
Facility type	Publicly owned treatment works
Program	Publicly owned treatment works
Issued	October 23, 2015
Expiration date	October 31, 2020
Address	Bensenville, IL 60106
Receiving water	ADDISON CREEK
Subwatershed	Bensenville Ditch-Des Plaines River (HUC 071200040506)

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

Effluent limits and exceedances

41Pollutants on file
41Under a numeric limit
13With a violation of any kind
9With 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	21	58	48	July 31, 2023	260% over the limit
Nitrogen, ammonia total [as N]	90	36	25	June 30, 2026	1,491% over the limit
Coliform, fecal general	4	28	24	February 28, 2023	99,999% over the limit
BOD, 5-day, 20 deg. C	5	20	14	April 30, 2022	183% over the limit
BOD, carbonaceous [5 day, 20 C]	16	11	7	July 31, 2015	1,205% over the limit
Chlorine, total residual	6	12	6	September 30, 2017	14,680% over the limit
Copper, total [as Cu]	2	8	4	June 30, 2006	13,150% over the limit
Phosphorus, total [as P]	11	3	2	October 31, 2024	76% over the limit
Oxygen, dissolved [DO]	12	3	1	July 31, 2015	18% over the limit
pH	8	12	0
Flow, in conduit or thru treatment plant	6	4	0
Flow, total	2	3	0
Nitrogen, total [as N]	3	1	0
Temperature, water deg. fahrenheit	2	0	0
Alkalinity, total [as CaCO3]	2	0	0
Oil & Grease	2	0	0
Nitrite + Nitrate total [as N]	2	0	0
Phosphorus, dissolved	2	0	0
Cyanide, total [as CN]	2	0	0
Cyanide, free [amenable to chlorination]	2	0	0
Chloride [as Cl]	2	0	0
Fluoride, total [as F]	2	0	0
Arsenic, total [as As]	2	0	0
Barium, total [as Ba]	2	0	0
Beryllium, total [as Be]	2	0	0
Cadmium, total [as Cd]	2	0	0
Chromium, hexavalent [as Cr]	2	0	0
Chromium, total [as Cr]	2	0	0
Iron, total [as Fe]	2	0	0
Iron, dissolved [as Fe]	2	0	0
Lead, total [as Pb]	2	0	0
Manganese, total [as Mn]	2	0	0
Thallium, total [as Tl]	2	0	0
Nickel, total [as Ni]	2	0	0
Silver, total [as Ag]	2	0	0
Zinc, total [as Zn]	2	0	0
Antimony, total [as Sb]	2	0	0
Selenium, total [as Se]	2	0	0
Phenolics, total recoverable	2	0	0
Nitrogen, Kjeldahl Total	2	0	0
Mercury, total [as Hg]	2	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 IL0021849.

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 IL0021849 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 discharge permit NPDES IL0021849, held by Bensenville, Village of, for the Bensenville - South STP facility in Bensenville, IL, which discharges to Addison Creek. The permit is listed as a Major Discharger, administratively continued, with 41 pollutants under a numeric limit and 9 pollutants with an effluent exceedance, and the facility is in subwatershed Bensenville Ditch-Des Plaines River (HUC 071200040506).