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ICIS-AIR MT0000003004300001

ASH GROVE CEMENT, Clancy, MT: Clean Air Act compliance record, inspections, violations, penalties

ASH GROVE CEMENT is on EPA’s ICIS-AIR register at 100 HIGHWAY 518, Clancy in Jefferson County, Montana: operating status operating, emissions classification major source, current violation status “No Violation Identified”.

What stands out

  • The newest of the 54 events on file is a compliance evaluation dated September 1, 2026.
  • Its events on file run from June 21, 2017 through September 1, 2026.
  • Of its 5 compliance evaluations on file, 4 are a full compliance evaluation.
  • The register holds 3 air-emissions sources in Jefferson County, Montana.

Every line is computed by formula from the record’s stored figures; nothing is estimated.

Identity

Facility as filedASH GROVE CEMENT
ICIS-AIR IDMT0000003004300001
EPA facility registry ID110000595197
Operating statusOperating
Emissions classificationMajor source
Current violation status (HPV field)No Violation Identified
Address100 HIGHWAY 518, Clancy, MT 59634
CountyJefferson County
In a nonattainment countyNo (EPA Green Book)
Industry (NAICS)Nonmetallic mineral product manufacturing (NAICS 3273)
EPA region08

Programs and pollutants

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

Compliance evaluations

DateWhat EPA recordedAgencyPrograms
September 1, 2026PCE Off-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 1, 2025FCE 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 22, 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
August 19, 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
December 27, 2018FCE 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

Violations

What high-priority and federally reportable violations mean.

EPA’s violation history file holds no violation for ICIS-AIR MT0000003004300001 since January 1, 2017.

Enforcement and penalties

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

Informal enforcement

EPA’s informal action file holds no notice or warning for ICIS-AIR MT0000003004300001 since January 1, 2017.

Stack tests

DateWhat EPA recordedAgency
July 9, 2026PassState
July 9, 2026PassState
July 9, 2026PassState
July 9, 2026PassState
July 14, 2025PassState
July 14, 2025PassState
November 7, 2024PassState
July 22, 2024PassState
July 22, 2024PassState
July 22, 2024PassState
July 20, 2023PassState
July 20, 2023PassState
July 20, 2023PassState
July 20, 2023PassState
November 9, 2022PassState
November 7, 2022PassState
July 20, 2022PassState
July 20, 2022PassState
July 20, 2022PassState
November 8, 2021PassState
November 8, 2021PassState
November 8, 2021PassState
November 8, 2021PassState
June 29, 2021PassState
June 29, 2021PassState
June 29, 2021PassState
June 29, 2021PassState
June 29, 2021PassState
October 12, 2020PassState
June 26, 2020PassState
June 26, 2020PassState
June 26, 2020PassState
June 26, 2020PassState
July 9, 2019PassState
July 9, 2019PassState
July 9, 2019PassState
July 9, 2019PassState
July 9, 2019PassState
October 25, 2018PassState
July 19, 2018PassState
July 19, 2018PassState
July 19, 2018PassState
July 3, 2018PassState
November 13, 2017PassState
November 13, 2017PassState
November 6, 2017PassState
June 21, 2017PassState
June 21, 2017PassState
June 21, 2017PassState

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Free from EPA: Detailed Facility Report, ECHO Notify (registry ID 110000595197).

Other air sources in Montana beside ASH GROVE CEMENT

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