Velarion Records
Follow this permit Velarion Records emails you this permit’s record, cited to the public filing, and tells you when the register changes it. Free.
We’ll email you a link to confirm. The continuous daily watch on every change is the paid alert. Unsubscribe any time.
Also free: The Pay Desk, the weekly executive pay briefing.

Clean Water Act discharge permit · NPDES IL0001392

MEXICHEM SPECIALTY RESINS, INC., Henry, IL: NPDES IL0001392 discharge permit, effluent exceedances, inspections, penalties

MEXICHEM SPECIALTY RESINS, INC., held by EMERALD POLYMER ADDITIVES LLC, holds NPDES permit IL0001392, which discharges to Illinois River. EPA’s file records it issued September 28, 2016 and expiring September 30, 2021. 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 filedMEXICHEM SPECIALTY RESINS, INC.
Permittee as filedEMERALD POLYMER ADDITIVES LLC
NPDES IDIL0001392
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMajor discharger
Facility typeNot a publicly owned treatment works
IssuedSeptember 28, 2016
Expiration dateSeptember 30, 2021
AddressHenry, IL 61537
Receiving waterILLINOIS RIVER
Receiving water impaired303(D) Listed
SubwatershedSenachwine Lake-Illinois River (HUC 071300011004)
SIC2821 – Plastics Materials And Resins
Other EPA IDs (FRS)RCRA handler ILT180010324

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

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 73 are shown.

Pollutant or measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
BOD, 5-day, 20 deg. C58669November 30, 2018225% over the limit
Solids, total suspended58366January 31, 20201,140% over the limit
Coliform, fecal general14138December 31, 202099,999% over the limit
Nitrogen, ammonia total [as N]83220May 31, 2026450% over the limit
Methylene chloride412414April 30, 2018311% over the limit
Chlorobenzene8239March 31, 201517,757% over the limit
Phenolics, total recoverable8184March 31, 201538,362% over the limit
Chloroform4482September 30, 202310,770% over the limit
Cyanide, total [as CN]8182March 31, 2015100% over the limit
Vinyl chloride8122January 31, 20073,631% over the limit
Toluene8551January 31, 20056,150% over the limit
Carbon tetrachloride8151January 31, 200513,058% over the limit
Benzene8151January 31, 20053,576% over the limit
Acenaphthylene8151January 31, 200516,849% over the limit
Acenaphthene8151January 31, 200516,849% over the limit
Acrylonitrile8151January 31, 200520,561% over the limit
Anthracene8151January 31, 200516,849% over the limit
Benzo[k]fluoranthene8151January 31, 200516,849% over the limit
Benzo[a]pyrene8151January 31, 200516,293% over the limit
Chrysene8151January 31, 200516,849% over the limit
Diethyl phthalate8151January 31, 20054,826% over the limit
Dimethyl phthalate8151January 31, 200521,177% over the limit
Ethylbenzene8151January 31, 20054,530% over the limit
Fluoranthene8151January 31, 200514,606% over the limit
Fluorene8151January 31, 200516,849% over the limit
Hexachloroethane8151January 31, 200518,419% over the limit
Methyl chloride [Chloromethane]8151January 31, 20055,163% over the limit
Nitrobenzene8151January 31, 200514,606% over the limit
Phenanthrene8151January 31, 200516,849% over the limit
Pyrene8151January 31, 200514,825% over the limit
1,1-Dichloroethane8151January 31, 20058,375% over the limit
1,1-Dichloroethylene8151January 31, 200519,900% over the limit
1,1,1-Trichloroethane8151January 31, 20059,159% over the limit
1,1,2-Trichloroethane8151January 31, 20059,159% over the limit
Benzo[a]anthracene8151January 31, 200516,849% over the limit
1,2-Dichloroethane, total weight8151January 31, 20052,270% over the limit
1,2-Dichlorobenzene8151January 31, 20052,967% over the limit
1,2-Dichloropropane8151January 31, 20052,074% over the limit
trans-1,2-Dichloroethylene8151January 31, 20059,159% over the limit
1,2,4-Trichlorobenzene8151January 31, 20057,043% over the limit
1,3-Dichlorobenzene8151January 31, 200511,264% over the limit
1,4-Dichlorobenzene8151January 31, 200517,757% over the limit
2-Chlorophenol8151January 31, 200510,104% over the limit
2-Nitrophenol8151January 31, 200514,393% over the limit
2,4-Dichlorophenol8151January 31, 20058,829% over the limit
2,4-Dimethylphenol8151January 31, 200527,678% over the limit
2,4-Dinitrotoluene8151January 31, 20053,409% over the limit
2,4-Dinitrophenol8151January 31, 200540,550% over the limit
2,6-Dinitrotoluene8151January 31, 20051,460% over the limit
4-Nitrophenol8151January 31, 20057,965% over the limit
4,6-Dinitro-o-cresol8151January 31, 200517,951% over the limit
Naphthalene8151January 31, 200516,849% over the limit
Di[2-ethylhexyl] phthalate [DEHP]8151January 31, 20053,484% over the limit
Di-n-butyl phthalate8151January 31, 200517,444% over the limit
Trichloroethylene8151January 31, 20059,159% over the limit
Hexachlorobenzene8151January 31, 200535,614% over the limit
Hexachlorobutadiene8151January 31, 200520,308% over the limit
3,4-Benzofluoranthene8151January 31, 200516,293% over the limit
Chloroethane8151January 31, 20053,631% over the limit
Tetrachloroethylene8151January 31, 20058,829% over the limit

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 IL0001392.

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.

Watch this permit

One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, IL0001392.

Start the watch

How often?
  • One permit holder — $99/month
  • One watershed — $2,990/year
  • One state — $4,990/year
  • The whole register — $18,000/year

How we handle your data → Privacy

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 IL0001392 there.

Nearby on the register

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

What this page shows

This public-records page covers NPDES permit IL0001392 for MEXICHEM SPECIALTY RESINS, INC. in Henry, IL, held by EMERALD POLYMER ADDITIVES LLC and discharging to the Illinois River, with the permit status shown as administratively continued. The page lists 72 pollutants under a numeric limit and 62 pollutants with an effluent exceedance, and it notes the Senachwine Lake-Illinois River subwatershed, HUC 071300011004.