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Clean Air Act stationary source · ICIS-AIR WY0000005600100002

LARAMIE CEMENT PLANT (MOUNTAIN CEMENT CO.), Laramie, WY: Clean Air Act compliance record, inspections, violations, penalties

LARAMIE CEMENT PLANT (MOUNTAIN CEMENT CO.), at 5 SAND CREEK ROAD, Laramie in Albany County, Wyoming, 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 “Unaddressed-State”. 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 filedLARAMIE CEMENT PLANT (MOUNTAIN CEMENT CO.)
ICIS-AIR IDWY0000005600100002
EPA facility registry ID110005580503
Operating statusOperating
Emissions classificationMajor source
Current violation status (ICIS-AIR high-priority violation field)Unaddressed-State
Address5 SAND CREEK ROAD, Laramie, WY 82070
CountyAlbany County
In a nonattainment countyNo (EPA Green Book)
Industry (NAICS)Nonmetallic mineral product manufacturing (NAICS 3273)
SIC code3241
EPA region08

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 LARAMIE CEMENT PLANT (MOUNTAIN CEMENT CO.) 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
August 27, 2024FCE On-SiteStateTitle V Permits
August 22, 2023FCE On-SiteStateTitle V Permits
September 27, 2022FCE On-SiteStateTitle V Permits
September 16, 2021FCE On-SiteStateTitle V Permits
August 25, 2020FCE On-SiteStateTitle V Permits
October 8, 2019FCE On-SiteStateTitle V Permits
June 29, 2018FCE On-SiteStateTitle V Permits
May 25, 2017FCE 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
February 18, 2026HPV day-zero determinationStateTitle V Permits
November 30, 2023HPV day-zero determinationStateTitle V Permits
September 8, 2022HPV day-zero determinationStateTitle V Permits
December 13, 2017HPV day-zero determinationStateTitle V Permits

Enforcement and penalties

2 formal enforcement actions since January 1, 2017, 2 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.

DateWhat EPA recordedAgencyPenalty, as filed
June 15, 2020Civil Judicial ActionState$61,000
December 5, 2017Civil Judicial ActionState$10,000

Informal enforcement

DateWhat EPA recordedAgency
May 29, 2026Notice of ViolationState
November 29, 2022Notice of ViolationState
December 13, 2017Notice of ViolationState

Stack tests

DateWhat EPA recordedAgency
November 12, 2025PassState
August 29, 2025PassState
August 29, 2025PassState
August 29, 2025PassState
August 29, 2025PassState
August 29, 2025PassState
August 29, 2025PassState
August 29, 2025PassState
August 29, 2025PassState
July 17, 2025PassState
July 17, 2025PassState
July 17, 2025PassState
June 27, 2024PassState
June 27, 2024PassState
June 25, 2024PassState
June 25, 2024PassState
October 6, 2022PassState
July 21, 2022PassState
July 21, 2022PassState
August 17, 2021PassState
August 12, 2021PassState
June 8, 2021PassState
December 17, 2020PassState
August 13, 2020PassState
July 31, 2020PassState
August 13, 2019PassState
October 30, 2018PassState
September 6, 2018PassState
July 24, 2018PassState
July 11, 2018PassState
October 3, 2017PassState
September 15, 2017PassState
June 1, 2017PassState

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 110005580503 there.

Nearby on the register

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