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Clean Air Act stationary source · ICIS-AIR MO0000002916500007

EVERGY INC -IATAN GENERATING STATION, Weston, MO: Clean Air Act compliance record, inspections, violations, penalties

EVERGY INC -IATAN GENERATING STATION, at 20250 HIGHWAY 45 NORTH, Weston in Platte County, Missouri, 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 “No Violation Identified”. Platte County is on EPA’s Green Book list of areas that do not meet a national air quality standard. 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 filedEVERGY INC -IATAN GENERATING STATION
ICIS-AIR IDMO0000002916500007
EPA facility registry ID110042630542
Operating statusOperating
Emissions classificationMajor source
Current violation status (ICIS-AIR high-priority violation field)No Violation Identified
Address20250 HIGHWAY 45 NORTH, Weston, MO 64098
CountyPlatte County
In a nonattainment countyYes (EPA Green Book)
Industry (NAICS)Utilities (NAICS 2211)
SIC code4911
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 EVERGY INC -IATAN GENERATING STATION 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
June 17, 2025FCE On-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State or Local rule or regulation that is not federally-enforceable; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
May 23, 2023FCE On-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
July 23, 2021FCE On-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
September 5, 2019FCE On-SiteStateMACT Standards (40 CFR Part 63); National Emission Standards for Hazardous Air Pollutants (40 CFR Part 61); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title 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
January 27, 2025Earliest FRV determinationStateTitle V Permits
May 1, 2024Earliest FRV determinationStateNational Emission Standards for Hazardous Air Pollutants (40 CFR Part 61); Title V Permits
April 19, 2023Earliest FRV determinationStateMACT Standards (40 CFR Part 63)

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
June 2, 2025State/local ActionState
September 16, 2024State/local ActionState
April 19, 2023Warning LetterState

Stack tests

The newest 50 of 53.

DateWhat EPA recordedAgency
February 25, 2025PassState
October 31, 2024PassState
January 19, 2023PassState
January 18, 2023PassState
January 17, 2023PassState
December 9, 2022PendingState
December 8, 2022PassState
May 5, 2021PendingState
April 28, 2021PendingState
January 28, 2021PendingState
January 28, 2021PendingState
January 28, 2021PendingState
January 27, 2021PendingState
January 27, 2021PendingState
January 27, 2021PendingState
January 26, 2021N/AState
January 22, 2021PendingState
January 20, 2021N/AState
December 10, 2020PendingState
December 10, 2020PendingState
December 8, 2020PendingState
July 8, 2020N/AState
July 7, 2020PendingState
June 5, 2020PendingState
January 29, 2020PendingState
January 28, 2020PendingState
June 22, 2019PendingState
April 16, 2019PassState
March 1, 2019PendingState
January 24, 2019FailState
January 24, 2019PendingState
January 23, 2019PendingState
January 23, 2019PendingState
January 16, 2019PendingState
January 15, 2019PendingState
October 24, 2018PendingState
October 23, 2018PendingState
August 22, 2018PassState
April 18, 2018PassState
February 9, 2018PendingState
February 8, 2018PendingState
February 6, 2018PendingState
January 25, 2018PendingState
January 22, 2018PendingState
January 16, 2018PendingState
September 27, 2017PassState
April 28, 2017PendingState
April 27, 2017PendingState
April 26, 2017PendingState
April 19, 2017PendingState

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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How we handle your data → Privacy

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 110042630542 there.

Nearby on the register

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

What this page shows

This page covers the Clean Air Act stationary source record for EVERGY INC -IATAN GENERATING STATION in Weston, MO, on the ICIS-AIR register. The listing gives 4 compliance evaluations since January 1, 2017, 0 high-priority violations since January 1, 2017, and 0 formal enforcement actions since January 1, 2017. The operating status is Operating, the emissions classification is Major source, and the current violation status is No Violation Identified.