Velarion Records

Clean Air Act stationary source · ICIS-AIR IA0000001903300240

GOLDEN GRAIN ENERGY LLC, Mason City, IA: Clean Air Act compliance record, inspections, violations, penalties

GOLDEN GRAIN ENERGY LLC, at 1822 43RD ST SW, Mason City in Cerro Gordo County, Iowa, is an operating major source of air pollution on EPA’s ICIS-AIR register. EPA’s file records its current violation status (ICIS-AIR’s high-priority violation field) as “Violation w/in 1 Year”. The status and classification are as EPA’s facility file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the source’s current standing, quarter by quarter.

Identity

Facility as filedGOLDEN GRAIN ENERGY LLC
ICIS-AIR IDIA0000001903300240
EPA facility registry ID110020160403
Operating statusOperating
Emissions classificationMajor source
Current violation status (ICIS-AIR high-priority violation field)Violation w/in 1 Year
Address1822 43RD ST SW, Mason City, IA 50401
CountyCerro Gordo County
In a nonattainment countyNo (EPA Green Book)
Industry (NAICS)Chemical manufacturing (NAICS 3251)
SIC code2869
EPA region07

Cited to the EPA ICIS-AIR facility file (ECHO download).

Programs and pollutants

Velarion’s copy of EPA’s ICIS-AIR download does not include its program, pollutant and Title V certification files, so this page does not list the Clean Air Act programs GOLDEN GRAIN ENERGY LLC is under or the pollutants it is permitted for. The programs each evaluation and violation below was recorded under are shown with it. EPA’s free Detailed Facility Report lists both.

Compliance evaluations

DateWhat EPA recordedAgencyPrograms
February 14, 2025FCE On-SiteStateTitle V Permits
May 18, 2023FCE On-SiteStateTitle V Permits
June 20, 2021FCE Off-SiteStateTitle V Permits
September 19, 2019FCE On-SiteStateTitle V Permits
January 30, 2018FCE On-SiteStateTitle V Permits

Violations

A high-priority violation (HPV) is the most serious class of Clean Air Act non-compliance an agency records; a federally reportable violation (FRV) is the next step down. Each row is one determination as EPA’s violation history files it.

DateWhat EPA recordedAgencyPrograms
April 13, 2026Earliest FRV determinationStateState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
May 6, 2025HPV day-zero determinationStatePrevention of Significant Deterioration of Air Quality; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
February 20, 2024Earliest FRV determinationStateState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
December 4, 2023HPV day-zero determinationStatePrevention of Significant Deterioration of Air Quality; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
June 14, 2023Earliest FRV determinationStateNew Source Performance Standards
July 13, 2021Earliest FRV determinationStateNew Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
October 24, 2019Earliest FRV determinationStateState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
November 21, 2018Earliest FRV determinationStateState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
April 3, 2018Earliest FRV determinationStateState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
August 21, 2017Earliest FRV determinationStatePrevention of Significant Deterioration of Air Quality; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards

Enforcement and penalties

0 formal enforcement actions since January 1, 2017, 0 of them with a penalty filed above zero. Each penalty is shown as EPA’s formal action file states it; “Not stated” means the file gives no figure, and $0 is a disclosed zero.

Informal enforcement

DateWhat EPA recordedAgency
April 13, 2026Notice of ViolationState
May 6, 2025Notice of ViolationState
February 20, 2024Notice of ViolationState
December 4, 2023Notice of ViolationState
June 14, 2023Notice of ViolationState
July 13, 2021Notice of ViolationState
October 24, 2019Notice of ViolationState
November 21, 2018Notice of ViolationState
April 3, 2018Notice of ViolationState
August 21, 2017Notice of ViolationState

Stack tests

The newest 50 of 81.

DateWhat EPA recordedAgency
January 8, 2026PassState
January 7, 2026FailState
January 6, 2026PassState
January 6, 2026PassState
June 5, 2025PassState
June 4, 2025PassState
June 3, 2025PassState
June 3, 2025PassState
January 31, 2025PassState
January 30, 2025PassState
January 30, 2025PassState
January 29, 2025FailState
January 28, 2025PassState
June 6, 2024PassState
June 6, 2024PassState
June 5, 2024PassState
June 5, 2024PassState
June 4, 2024PassState
January 11, 2024PassState
January 11, 2024PassState
January 11, 2024PassState
December 13, 2023FailState
December 13, 2023PassState
December 13, 2023PassState
August 9, 2023FailState
August 9, 2023FailState
June 6, 2023PassState
June 6, 2023PassState
June 6, 2023PassState
December 21, 2022PassState
December 20, 2022PassState
December 20, 2022PassState
June 17, 2021PassState
June 16, 2021PassState
June 16, 2021PassState
June 15, 2021PassState
August 13, 2020PassState
August 12, 2020PassState
August 12, 2020PassState
August 12, 2020PassState
August 11, 2020PassState
August 11, 2020PassState
August 11, 2020PassState
August 11, 2020PassState
January 8, 2020PassState
January 7, 2020PassState
January 7, 2020PassState
August 22, 2019PassState
August 22, 2019FailState
August 21, 2019PassState

Cited to the EPA ICIS-AIR evaluation, violation, stack test and enforcement files (ECHO download), events dated January 1, 2017 or later as loaded; up to 50 rows of each shown, newest first.

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EPA publishes a free Detailed Facility Report for every source on ECHO: its compliance status quarter by quarter, its evaluations, and its violations, enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter EPA facility registry ID 110020160403 there.

Nearby on the register

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

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