Velarion Records

Clean Water Act discharge permit · NPDES IL0000141

EQUISTAR CHEMICALS, LP (LYONDELLBASELL) -TUSCOLA PLANT, Tuscola, IL: NPDES IL0000141 discharge permit, effluent exceedances, inspections, penalties

EQUISTAR CHEMICALS, LP (LYONDELLBASELL) -TUSCOLA PLANT, held by EQUISTAR CHEMICALS LP LYONDELLBASELL, holds NPDES permit IL0000141, which discharges to Unnamed Trib To Kaskaskia River. EPA’s file records it issued October 27, 2020 and expiring October 31, 2025. 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 filedEQUISTAR CHEMICALS, LP (LYONDELLBASELL) -TUSCOLA PLANT
Permittee as filedEQUISTAR CHEMICALS LP LYONDELLBASELL
NPDES IDIL0000141
Permit statusEffective
Permit typeIndividual permit
Discharger classMajor discharger
Facility typeNot a publicly owned treatment works
IssuedOctober 27, 2020
Expiration dateOctober 31, 2025
AddressTuscola, IL 61953
Receiving waterUNNAMED TRIB TO KASKASKIA RIVER
SubwatershedTown of Ficklin-Kaskaskia River (HUC 071402010206)
Other EPA IDs (FRS)RCRA handler ILD005078126

Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.

Effluent limits and exceedances

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 82 are shown.

Pollutant or measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
Solids, total suspended89216May 31, 2017175% over the limit
trans-1,2-Dichloroethylene4379May 31, 202495% over the limit
BOD, 5-day, 20 deg. C8826January 31, 2018248% over the limit
Oil and grease4135July 31, 2022200% over the limit
4,6-Dinitro-o-cresol4324May 31, 202232% over the limit
Hexachlorobenzene4324May 31, 202240% over the limit
Phenol0324September 30, 202040% over the limit
Cyanide, total [as CN]8302November 30, 20254,900% over the limit
Acrylonitrile4302May 31, 202212% over the limit
2,4-Dimethylphenol4302May 31, 202212% over the limit
2,4-Dichlorophenol0302September 30, 2014125% over the limit
Benzo[a]anthracene4291April 30, 201042% over the limit
1,3-Dichloropropene, total weight4291September 30, 20185% over the limit
4-Nitrophenol4291September 30, 201422% over the limit
Hexachlorobutadiene4291September 30, 20182% over the limit
Dimethyl phthalate0291September 30, 20187% over the limit
Phenols411May 31, 202231% over the limit
Chromium, total [as Cr]8280
Copper, total [as Cu]8280
Lead, total [as Pb]8280
Nickel, total [as Ni]8280
Zinc, total [as Zn]8280
Carbon tetrachloride4280
Chloroform4280
Toluene4280
Benzene4280
Acenaphthylene4280
Acenaphthene4280
Anthracene4280
Benzo[k]fluoranthene4280
Benzo[a]pyrene4280
Chlorobenzene4280
Chrysene4280
Diethyl phthalate4280
Ethylbenzene4280
Fluoranthene4280
Fluorene4280
Hexachloroethane4280
Methyl chloride [Chloromethane]4280
Methylene chloride4280
Phenanthrene4280
Pyrene4280
Tetrachloroethylene4280
1,1-Dichloroethane4280
1,1-Dichloroethylene4280
1,1,1-Trichloroethane4280
1,1,2-Trichloroethane4280
1,2-Dichlorobenzene4280
1,2-Dichloropropane4280
1,2,4-Trichlorobenzene4280
1,3-Dichlorobenzene4280
1,4-Dichlorobenzene4280
2-Chlorophenol4280
2-Nitrophenol4280
2,4-Dinitrotoluene4280
2,4-Dinitrophenol4280
2,6-Dinitrotoluene4280
Naphthalene4280
Di[2-ethylhexyl] phthalate [DEHP]4280
Di-n-butyl phthalate4280

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

EPA’s single-event violation file, as loaded, holds no violation for NPDES IL0000141.

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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Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

What this page shows

This public-records page covers NPDES permit IL0000141 for Equistar Chemicals, LP (LyondellBasell) – Tuscola Plant in Tuscola, IL, a Major Discharger under an Effective individual permit that discharges to Unnamed Trib To Kaskaskia River. The page lists 76 pollutants under a numeric limit and 17 pollutants with an effluent exceedance, with the permit shown as issued October 27, 2020 and expiring October 31, 2025, as the EPA file stood when the record was loaded on September 15, 2026.

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