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ICIS-AIR NVCCH00032003A0003

LHOIST NORTH AMERICA OF ARIZONA - APEX PLANT, Las Vegas, NV: Clean Air Act compliance record, inspections, violations, penalties

LHOIST NORTH AMERICA OF ARIZONA - APEX PLANT is on EPA’s ICIS-AIR register at 12101 NORTH LAS VEGAS BOULEVARD, Las Vegas in Clark County, Nevada: operating status operating, emissions classification major source, current violation status “Violation w/in 1 Year”. Clark County is on EPA’s Green Book list of areas that do not meet a national air quality standard.

Identity

Facility as filedLHOIST NORTH AMERICA OF ARIZONA - APEX PLANT
ICIS-AIR IDNVCCH00032003A0003
EPA facility registry ID110063205623
Operating statusOperating
Emissions classificationMajor source
Current violation status (HPV field)Violation w/in 1 Year
Address12101 NORTH LAS VEGAS BOULEVARD, Las Vegas, NV 89165
CountyClark County
In a nonattainment countyYes (EPA Green Book)
Industry (NAICS)Nonmetallic mineral product manufacturing (NAICS 3274)
SIC code3274
EPA region09
Local air agencyClark County Department Of Air Quality (Grantee)

Programs and pollutants

The program, pollutant and Title V files are not loaded: what this page covers.

Compliance evaluations

DateWhat EPA recordedAgencyPrograms
April 7, 2026PCE On-SiteLocalTitle V Permits
April 2, 2025FCE On-SiteLocalTitle V Permits
February 5, 2025PCE Off-SiteLocalTitle V Permits
October 22, 2024PCE Off-SiteLocalTitle V Permits
May 29, 2024PCE Off-SiteLocalTitle V Permits
April 29, 2024PCE On-SiteLocalTitle V Permits
March 20, 2024PCE Off-SiteLocalTitle V Permits
May 25, 2023FCE On-SiteLocalTitle V Permits
March 1, 2023PCE Off-SiteLocalTitle V Permits
September 27, 2022PCE Off-SiteLocalTitle V Permits
October 25, 2021PCE On-SiteLocalTitle V Permits
May 4, 2021FCE On-SiteLocalTitle V Permits
September 26, 2019FCE On-SiteLocalTitle V Permits
October 30, 2017FCE On-SiteLocalTitle V Permits

Violations

What high-priority and federally reportable violations mean.

DateWhat EPA recordedAgencyPrograms
April 6, 2026Earliest FRV determinationLocalFederally-Enforceable State Operating Permit - Non Title V; New Source Review Permit Requirements
April 2, 2025Earliest FRV determinationLocalTitle V Permits
February 5, 2025Earliest FRV determinationLocalNew Source Review Permit Requirements; Title V Permits
October 22, 2024Earliest FRV determinationLocalNew Source Review Permit Requirements; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
May 29, 2024Earliest FRV determinationLocalTitle V Permits
April 29, 2024Earliest FRV determinationLocalState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
March 20, 2024Earliest FRV determinationLocalNew Source Review Permit Requirements; Title V Permits
May 25, 2023Earliest FRV determinationLocalNational Emission Standards for Hazardous Air Pollutants (40 CFR Part 61); State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
March 1, 2023HPV day-zero determinationLocalNew Source Review Permit Requirements; Title V Permits
November 8, 2022Earliest FRV determinationLocalNew Source Review Permit Requirements; Title V Permits
October 27, 2021Earliest FRV determinationLocalNew Source Review Permit Requirements; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
March 24, 2021Earliest FRV determinationLocalMACT Standards (40 CFR Part 63); National Emission Standards for Hazardous Air Pollutants (40 CFR Part 61); New Source Performance Standards; New Source Review Permit Requirements; Title V Permits
September 26, 2019Earliest FRV determinationLocalMACT Standards (40 CFR Part 63); New Source Performance Standards; New Source Review Permit Requirements; Title V Permits
October 30, 2017Earliest FRV determinationLocalState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits

Enforcement and penalties

10 of the formal enforcement actions carry a penalty filed above zero. How a penalty is shown.

DateWhat EPA recordedAgencyPenalty, as filed
May 27, 2026Administrative OrderLocal$9,000
May 28, 2025Administrative OrderLocal$5,630
January 22, 2025Administrative OrderLocal$5,625
July 24, 2024Administrative OrderLocal$2,500
May 29, 2024Administrative OrderLocal$6,863
September 27, 2023Administrative OrderLocal$14,610
May 17, 2023Administrative OrderLocal$5,720
July 22, 2021Administrative OrderState$11,360
January 22, 2020Administrative OrderLocal$16,480
May 22, 2018Administrative OrderLocal$25,700

Informal enforcement

DateWhat EPA recordedAgency
February 5, 2025Warning LetterLocal
May 29, 2024Warning LetterLocal
November 10, 2022Warning LetterLocal
October 27, 2021Warning LetterLocal

Stack tests

DateWhat EPA recordedAgency
June 10, 2026PassLocal
April 9, 2026PassLocal
March 27, 2026PassLocal
February 2, 2023PassLocal
February 2, 2023PassLocal
December 27, 2022PassLocal
December 27, 2022PassLocal
December 27, 2022PassLocal
December 15, 2022PassLocal
December 15, 2022FailLocal
December 15, 2022FailLocal
December 14, 2022PassLocal
December 14, 2022PassLocal
December 13, 2022PassLocal
December 13, 2022PassLocal
December 31, 2021PassLocal
December 31, 2021PassLocal
December 31, 2021PassLocal
April 16, 2021PassLocal
April 16, 2021PassLocal
April 16, 2021PassLocal
January 18, 2018PassLocal
January 18, 2018PassLocal
January 18, 2018PassLocal
December 21, 2017PassLocal
December 20, 2017PassLocal
December 20, 2017PassLocal

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Other air sources in Nevada beside LHOIST NORTH AMERICA OF ARIZONA - APEX PLANT

EPA ICIS-AIR download, loaded September 14, 2026.