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Clean Water Act discharge permit · NPDES IA0000256

ROQUETTE AMERICA, INC., Keokuk, IA: NPDES IA0000256 discharge permit, effluent exceedances, inspections, penalties

ROQUETTE AMERICA, INC. holds NPDES permit IA0000256. EPA’s file records it issued July 1, 2018 and expiring June 30, 2023. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filedROQUETTE AMERICA, INC.
Permittee as filedROQUETTE AMERICA, INC.
NPDES IDIA0000256
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
IssuedJuly 1, 2018
Expiration dateJune 30, 2023
Issuing agencySTA
AddressKeokuk, IA 52632
Receiving water impaired303(D) Listed
SubwatershedCedar Glen Creek-Mississippi River (HUC 070801041806)

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

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 75 are shown.

Pollutant or measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
pH1111099May 31, 2026
Solids, total suspended119868September 30, 2024387% over the limit
Temperature, water deg. fahrenheit03939July 31, 201115% over the limit
Chlorine, total residual1611836June 30, 2025932% over the limit
BOD, 5-day, 20 deg. C72826July 31, 2026454% over the limit
Nitrogen, ammonia total [as N]482412June 30, 2026109% over the limit
Nickel, total [as Ni]71612May 31, 20261,373% over the limit
Zinc, total [as Zn]21711December 31, 20121,136% over the limit
Chloroform21410December 31, 200429,725% over the limit
Cyanide, total [as CN]2168January 31, 20031,445% over the limit
Phenol2207March 31, 202619,900% over the limit
Copper, total [as Cu]284May 31, 201037,222% over the limit
Toxicity [acute], Ceriodaphnia dubia193June 30, 2016100% over the limit
Chromium, total [as Cr]282January 31, 20031,047% over the limit
Flow, in conduit or thru treatment plant032December 31, 20091,007% over the limit
Di[2-ethylhexyl] phthalate [DEHP]251December 31, 201055% over the limit
Hexachlorobenzene4120
1,3-Dichloropropene2100
1,2-Dichloroethane280
Chloroethane280
Lead, total [as Pb]260
Acenaphthylene260
Acenaphthene260
Methyl chloride [Chloromethane]260
Pyrene260
4-Nitrophenol260
Vinyl chloride260
Tetrachloroethene260
Carbon tetrachloride240
Toluene240
Benzene240
Acrylonitrile240
Benzo[b]fluoranthene240
Benzo[k]fluoranthene240
Benzo[a]pyrene240
Chrysene240
Diethyl phthalate240
Dimethyl phthalate240
Ethylbenzene240
Fluoranthene240
Hexachloroethane240
Methylene chloride240
Nitrobenzene240
Phenanthrene240
1,1-Dichloroethane240
1,1-Dichloroethylene240
1,1,1-Trichloroethane240
1,1,2-Trichloroethane240
Benzo[a]anthracene240
1,2-Dichlorobenzene240
1,2-Dichloropropane240
trans-1,2-Dichloroethylene240
1,2,4-Trichlorobenzene240
1,3-Dichlorobenzene240
1,4-Dichlorobenzene240
2-Chlorophenol240
2-Nitrophenol240
2,4-Dichlorophenol240
2,4-Dimethylphenol240
2,4-Dinitrotoluene240

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 IA0000256.

Velarion’s copy of EPA’s ICIS-NPDES files does not yet 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

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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 IA0000256 there.

Nearby on the register

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