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NPDES IL0034592 · Clean Water Act

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

ARGONNE NATIONAL LABORATORY, Argonne, Illinois: Individual permit IL0034592; Administratively continued; issued May 23, 2017, term to May 31, 2022; discharges to SEE PERMIT.

  • Solids, total suspended: 6 limits, 55 violations of any kind, 45 effluent exceedances, latest May 31, 2026, largest 3,693% over the limit.
  • Chloride [as Cl]: 1 limit, 36 violations of any kind, 35 effluent exceedances, latest March 31, 2026, largest 122% over the limit.
  • Solids, total dissolved: 0 limits, 28 violations of any kind, 28 effluent exceedances, latest March 31, 2011, largest 227% over the limit.
  • Mercury, total [as Hg]: 6 limits, 41 violations of any kind, 18 effluent exceedances, latest March 31, 2026, largest 542% over the limit.
  • Copper, total [as Cu]: 6 limits, 23 violations of any kind, 18 effluent exceedances, latest February 28, 2015, largest 281% over the limit.
  • Solids, total dissolved- 180 deg. C: 0 limits, 19 violations of any kind, 18 effluent exceedances, latest February 28, 2005, largest 39% over the limit.
  • Oxygen, dissolved [DO]: 5 limits, 16 violations of any kind, 13 effluent exceedances, latest June 30, 2018, largest 13% over the limit.
  • Chlorine, total residual: 1 limit, 14 violations of any kind, 12 effluent exceedances, latest September 30, 2007, largest 320% over the limit.
  • Nitrogen, ammonia total [as N]: 8 limits, 13 violations of any kind, 10 effluent exceedances, latest March 31, 2014, largest 167% over the limit.
  • BOD, 5-day, 20 deg. C: 6 limits, 14 violations of any kind, 8 effluent exceedances, latest October 31, 2023, largest 99,999% over the limit.
  • Temperature, water deg. centigrade: 2 limits, 9 violations of any kind, 4 effluent exceedances, latest March 31, 2018, largest 24% over the limit.
  • Sulfate, total [as SO4]: 0 limits, 3 violations of any kind, 2 effluent exceedances, latest February 28, 2014, largest 50% over the limit.
  • Iron, total [as Fe]: 4 limits, 7 violations of any kind, 1 effluent exceedance, latest May 31, 1996, largest 25% over the limit.
  • Zinc, total [as Zn]: 6 limits, 4 violations of any kind, 1 effluent exceedance, latest October 31, 1996, largest 40% over the limit.
  • Phenol: 4 limits, 2 violations of any kind, 1 effluent exceedance, latest October 31, 2006, largest 30% over the limit.
  • Flow, in conduit or thru treatment plant: 22 limits, 36 violations of any kind.
  • pH: 8 limits, 25 violations of any kind.
  • Oil & Grease: 6 limits, 5 violations of any kind.
  • Tritium, total: 6 limits, 4 violations of any kind.
  • Lead, total [as Pb]: 6 limits, 3 violations of any kind.
  • Dichlorobromomethane: 4 limits, 3 violations of any kind.
  • Bromoform: 4 limits, 3 violations of any kind.
  • Chloroform: 4 limits, 3 violations of any kind.
  • Toluene: 4 limits, 3 violations of any kind.
  • Chlorodibromomethane: 4 limits, 3 violations of any kind.
  • PCB-1260: 4 limits, 3 violations of any kind.
  • Iron, dissolved [as Fe]: 2 limits, 3 violations of any kind.
  • 2,3,7,8-Tetrachlorodibenzo-p-dioxin: 0 limits, 3 violations of any kind.
  • Cyanide, total [as CN]: 6 limits, 2 violations of any kind.
  • Arsenic, total [as As]: 6 limits, 2 violations of any kind.
  • Acenaphthylene: 4 limits, 2 violations of any kind.
  • Acenaphthene: 4 limits, 2 violations of any kind.
  • Diethyl phthalate: 4 limits, 2 violations of any kind.
  • Fluorene: 4 limits, 2 violations of any kind.
  • Hexachlorocyclopentadiene: 4 limits, 2 violations of any kind.
  • Hexachloroethane: 4 limits, 2 violations of any kind.
  • N-Nitrosodimethylamine [NDMA]: 4 limits, 2 violations of any kind.
  • Phenanthrene: 4 limits, 2 violations of any kind.
  • Pyrene: 4 limits, 2 violations of any kind.
  • 1,1-Dichloroethane: 4 limits, 2 violations of any kind.
  • Di-n-octyl phthalate: 4 limits, 2 violations of any kind.
  • 2,6-Dinitrotoluene: 4 limits, 2 violations of any kind.
  • Naphthalene: 4 limits, 2 violations of any kind.
  • Di[2-ethylhexyl] phthalate [DEHP]: 4 limits, 2 violations of any kind.
  • Di-n-butyl phthalate: 4 limits, 2 violations of any kind.
  • Endrin: 4 limits, 2 violations of any kind.
  • Toxaphene: 4 limits, 2 violations of any kind.
  • Hexachlorobenzene: 4 limits, 2 violations of any kind.
  • Hexachlorobutadiene: 4 limits, 2 violations of any kind.
  • Chromium, hexavalent [as Cr]: 2 limits, 2 violations of any kind.
  • Oil and grease [soxhlet extr.] tot.: 0 limits, 2 violations of any kind.
  • Asbestos: 0 limits, 2 violations of any kind.
  • Chromium, trivalent [as Cr]: 0 limits, 2 violations of any kind.
  • Cadmium, total [as Cd]: 6 limits, 1 violation of any kind.
  • Chromium, total [as Cr]: 6 limits, 1 violation of any kind.
  • Nickel, total [as Ni]: 6 limits, 1 violation of any kind.
  • Silver, total [as Ag]: 6 limits, 1 violation of any kind.
  • Selenium, total [as Se]: 6 limits, 1 violation of any kind.
  • Beryllium, total [as Be]: 4 limits, 1 violation of any kind.
  • Thallium, total [as Tl]: 4 limits, 1 violation of any kind.
  • October 5, 2026: Other Response - No Further Action (EPA).
  • April 8, 2026: Evaluation (E).
  • April 8, 2026: Evaluation (E).
  • April 8, 2026: Evaluation (E).
  • April 8, 2026: Evaluation (E).

Other permits held by ARGONNE NATIONAL LABORATORY

ARGONNE NATIONAL LABORATORY among its neighbors

37 discharge permits are in the Spring Creek subwatershed (HUC 071200040602); IL0034592 is one. Its county: 204, 23 major; IL0034592 is major permit.

Other permits in the Spring Creek subwatershed (HUC 071200040602)

Identity

FacilityARGONNE NATIONAL LABORATORY
PermitteeARGONNE NATIONAL LABORATORY
NPDES IDIL0034592
StatusAdministratively continued
TypeIndividual permit
ClassMajor
Facility typeFederal facility
IssuedMay 23, 2017
ExpiresMay 31, 2022
AddressArgonne, IL 60439
Receiving waterSEE PERMIT
Receiving water impaired303(D) Listed
SubwatershedSpring Creek (HUC 071200040602)
SIC8733 – Noncommercial Research Organizations
Other EPA IDs (FRS)RCRA handler IL3890008946; ICIS-AIR source IL000043802AAA

NPDES IL0034592: effluent limits and exceedances

ARGONNE NATIONAL LABORATORY (NPDES IL0034592): 156 pollutants on file, 147 limited; 152 with a violation of any kind, 15 with an exceedance.

The 60 with the most exceedances of the 156 on file for NPDES IL0034592. How exceedances are counted.

PollutantLimitsViolationsExceedancesLatestLargest, as filed
Solids, total suspended65545May 31, 20263,693% over the limit
Chloride [as Cl]13635March 31, 2026122% over the limit
Solids, total dissolved02828March 31, 2011227% over the limit
Mercury, total [as Hg]64118March 31, 2026542% over the limit
Copper, total [as Cu]62318February 28, 2015281% over the limit
Solids, total dissolved- 180 deg. C01918February 28, 200539% over the limit
Oxygen, dissolved [DO]51613June 30, 201813% over the limit
Chlorine, total residual11412September 30, 2007320% over the limit
Nitrogen, ammonia total [as N]81310March 31, 2014167% over the limit
BOD, 5-day, 20 deg. C6148October 31, 202399,999% over the limit
Temperature, water deg. centigrade294March 31, 201824% over the limit
Sulfate, total [as SO4]032February 28, 201450% over the limit
Iron, total [as Fe]471May 31, 199625% over the limit
Zinc, total [as Zn]641October 31, 199640% over the limit
Phenol421October 31, 200630% over the limit
Flow, in conduit or thru treatment plant22360
pH8250
Oil & Grease650
Tritium, total640
Lead, total [as Pb]630
Dichlorobromomethane430
Bromoform430
Chloroform430
Toluene430
Chlorodibromomethane430
PCB-1260430
Iron, dissolved [as Fe]230
2,3,7,8-Tetrachlorodibenzo-p-dioxin030
Cyanide, total [as CN]620
Arsenic, total [as As]620
Acenaphthylene420
Acenaphthene420
Diethyl phthalate420
Fluorene420
Hexachlorocyclopentadiene420
Hexachloroethane420
N-Nitrosodimethylamine [NDMA]420
Phenanthrene420
Pyrene420
1,1-Dichloroethane420
Di-n-octyl phthalate420
2,6-Dinitrotoluene420
Naphthalene420
Di[2-ethylhexyl] phthalate [DEHP]420
Di-n-butyl phthalate420
Endrin420
Toxaphene420
Hexachlorobenzene420
Hexachlorobutadiene420
Chromium, hexavalent [as Cr]220
Oil and grease [soxhlet extr.] tot.020
Asbestos020
Chromium, trivalent [as Cr]020
Cadmium, total [as Cd]610
Chromium, total [as Cr]610
Nickel, total [as Ni]610
Silver, total [as Ag]610
Selenium, total [as Se]610
Beryllium, total [as Be]410
Thallium, total [as Tl]410

NPDES IL0034592: inspections, violations and enforcement

NPDES IL0034592: 4 inspections

DateWhat EPA recordedAgency
April 8, 2026EvaluationE
April 8, 2026EvaluationE
April 8, 2026EvaluationE
April 8, 2026EvaluationE

NPDES IL0034592: 1 informal enforcement action

DateWhat EPA recordedAgency
October 5, 2026Other Response - No Further ActionEPA

NPDES IL0034592 (ARGONNE NATIONAL LABORATORY): no single-event violation and formal enforcement action on file.

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Permits near NPDES IL0034592

NPDES IL0034592: 156 pollutant rows, 5 dated events; ICIS-NPDES download, loaded October 14, 2026.