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Clean Water Act discharge permit · NPDES IA0078051

POET BIOREFINING - ASHTON, LLC, Ashton, IA: NPDES IA0078051 discharge permit, effluent exceedances, inspections, penalties

POET BIOREFINING - ASHTON, LLC, held by POET BIOREFINING, holds NPDES permit IA0078051. EPA’s file records it issued January 1, 2022 and expiring December 31, 2026. 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 filedPOET BIOREFINING - ASHTON, LLC
Permittee as filedPOET BIOREFINING
NPDES IDIA0078051
Permit statusEffective
Permit typeIndividual permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedJanuary 1, 2022
Expiration dateDecember 31, 2026
Issuing agencySTA
AddressAshton, IA 51232
SubwatershedKappes Creek-Otter Creek (HUC 101702040504)
NAICS325193 – Ethyl Alcohol Manufacturing
SIC2869 – Industrial Organic Chemicals
Other EPA IDs (FRS)RCRA handler IAR000530733; ICIS-AIR source IA0000001914300028

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.

Pollutant or measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
Iron, total [as Fe]12416December 31, 2025135% over the limit
Chlorine, total residual154October 31, 2025163% over the limit
Flow, in conduit or thru treatment plant033July 31, 202666,519,232% over the limit
Solids, total dissolved0602August 31, 20041% over the limit
Zinc, total [as Zn]132October 31, 2025350% over the limit
pH451November 30, 2023
Oxygen, dissolved [DO]110
Solids, total suspended110

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 IA0078051.

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 IA0078051 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 Clean Water Act NPDES permit IA0078051, held by POET BIOREFINING - ASHTON, LLC in Ashton, IA, with its status shown as Effective and a Minor discharger class. The page lists 6 pollutants under a numeric limit and 6 pollutants with an effluent exceedance, with the permit issued January 1, 2022 and expiring December 31, 2026.