Clean Water Act discharge permit · NPDES IL0034592

ARGONNE NATIONAL LABORATORY, Argonne, IL: NPDES IL0034592 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MajorDischarger class
147Pollutants under a numeric limit
15Pollutants with an effluent exceedance

ARGONNE NATIONAL LABORATORY holds NPDES permit IL0034592, which discharges to See Permit. EPA’s file records it issued May 23, 2017 and expiring May 31, 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	ARGONNE NATIONAL LABORATORY
Permittee as filed	ARGONNE NATIONAL LABORATORY
NPDES ID	IL0034592
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual permit
Discharger class	Major discharger
Facility type	Federal facility
Issued	May 23, 2017
Expiration date	May 31, 2022
Address	Argonne, IL 60439
Receiving water	SEE PERMIT
Receiving water impaired	303(D) Listed
Subwatershed	Spring Creek (HUC 071200040602)
SIC	8733 – Noncommercial Research Organizations
Other EPA IDs (FRS)	RCRA handler IL3890008946; ICIS-AIR source IL000043802AAA

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.

Effluent limits and exceedances

156Pollutants on file
147Under a numeric limit
152With a violation of any kind
15With 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; the 60 with the most exceedances of 156 are shown.

Pollutant or measure	Limits	Violations, any kind	Effluent exceedances	Latest exceedance	Largest exceedance, as filed
Solids, total suspended	6	55	45	May 31, 2026	3,693% over the limit
Chloride [as Cl]	1	36	35	March 31, 2026	122% over the limit
Solids, total dissolved	0	28	28	March 31, 2011	227% over the limit
Mercury, total [as Hg]	6	41	18	March 31, 2026	542% over the limit
Copper, total [as Cu]	6	23	18	February 28, 2015	281% over the limit
Solids, total dissolved- 180 deg. C	0	19	18	February 28, 2005	39% over the limit
Oxygen, dissolved [DO]	5	16	13	June 30, 2018	13% over the limit
Chlorine, total residual	1	14	12	September 30, 2007	320% over the limit
Nitrogen, ammonia total [as N]	8	13	10	March 31, 2014	167% over the limit
BOD, 5-day, 20 deg. C	6	14	8	October 31, 2023	99,999% over the limit
Temperature, water deg. centigrade	2	9	4	March 31, 2018	24% over the limit
Sulfate, total [as SO4]	0	3	2	February 28, 2014	50% over the limit
Iron, total [as Fe]	4	7	1	May 31, 1996	25% over the limit
Zinc, total [as Zn]	6	4	1	October 31, 1996	40% over the limit
Phenol	4	2	1	October 31, 2006	30% over the limit
Flow, in conduit or thru treatment plant	22	36	0
pH	8	25	0
Oil & Grease	6	5	0
Tritium, total	6	4	0
Lead, total [as Pb]	6	3	0
Dichlorobromomethane	4	3	0
Bromoform	4	3	0
Chloroform	4	3	0
Toluene	4	3	0
Chlorodibromomethane	4	3	0
PCB-1260	4	3	0
Iron, dissolved [as Fe]	2	3	0
2,3,7,8-Tetrachlorodibenzo-p-dioxin	0	3	0
Cyanide, total [as CN]	6	2	0
Arsenic, total [as As]	6	2	0
Acenaphthylene	4	2	0
Acenaphthene	4	2	0
Diethyl phthalate	4	2	0
Fluorene	4	2	0
Hexachlorocyclopentadiene	4	2	0
Hexachloroethane	4	2	0
N-Nitrosodimethylamine [NDMA]	4	2	0
Phenanthrene	4	2	0
Pyrene	4	2	0
1,1-Dichloroethane	4	2	0
Di-n-octyl phthalate	4	2	0
2,6-Dinitrotoluene	4	2	0
Naphthalene	4	2	0
Di[2-ethylhexyl] phthalate [DEHP]	4	2	0
Di-n-butyl phthalate	4	2	0
Endrin	4	2	0
Toxaphene	4	2	0
Hexachlorobenzene	4	2	0
Hexachlorobutadiene	4	2	0
Chromium, hexavalent [as Cr]	2	2	0
Oil and grease [soxhlet extr.] tot.	0	2	0
Asbestos	0	2	0
Chromium, trivalent [as Cr]	0	2	0
Cadmium, total [as Cd]	6	1	0
Chromium, total [as Cr]	6	1	0
Nickel, total [as Ni]	6	1	0
Silver, total [as Ag]	6	1	0
Selenium, total [as Se]	6	1	0
Beryllium, total [as Be]	4	1	0
Thallium, total [as Tl]	4	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 IL0034592.

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 IL0034592 there.

Nearby on the register

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

This public-records page covers Clean Water Act NPDES permit IL0034592, held by ARGONNE NATIONAL LABORATORY in Argonne, IL, with a Major discharger class and an administratively continued status. The facts list 147 pollutants under a numeric limit and 15 pollutants with an effluent exceedance, with the permit issued May 23, 2017 and expiring May 31, 2022.