Mining Incidents

Mountain Cement Company LLC operator

Controlled by Eagle Materials Inc
MSHA operator ID: L08533
Fatalities
1
Total incidents
342
Mines on record
3
Years on record
1986–2026
Compliance record
MSHA citations since 2000
825
citations
171
significant & substantial
$914,263
proposed penalties
$737,838
paid to date
81% of proposed penalties paid to date, a $176,425 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
136
inspections on record
6,553
inspection hours
12.6
citations per 100 inspection hours
This rate is recorded citations divided by MSHA inspection hours, per 100 hours. It reflects inspection effort, not mine size or production.
825 citations across 6,553 inspection hours.
Source: MSHA inspections data, updated weekly.
Penalty disposition
Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.
$914K
proposed penalties
$746K
current assessed
$738K
paid to date
$8K
outstanding
806 assessments are final orders; 41 contested dockets.
As of the most recent assessment on 2026-02-05.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.

Top causes

Incident timeline

2026
10
2025
7
2024
3
2023
2
2022
2
2021
7
2020
1
2019
7
2018
1
2017
5
2016
2
2015
2
2014
2
2013
6
2012
5
2011
7
2010
6
2009
10
2008
6
2007
5
2006
6
2005
6
2004
9
2003
11
2002
16
2001
15
2000
15
1999
12
1998
11
1997
12
1996
11
1995
16
1994
10
1993
5
1992
11
1991
18 (1f)
1990
17
1989
19
1988
11
1987
7
1986
8

Mines on record

Fatalities under this operator

1 recorded
March 1, 1991 WY · Metal/Non-Metal prep plant foreman, supervisor, mill plant supervisor, kiln supervisor Fatality · ELECTRICAL
Mountain Cement Company LLC · Contact with electrical current

VICTIM & ANOTHER EMPL WERE TROUBLE SHOOTING PROBLEMS WITH ELECTROSTATIC PRECIPITATOR. VICTIM ENTERED HIGH VOLTAGE CONNECTION BOX WITHOUT PROPERLY DE-ENERGIZING & LOCKING OUT POWER SOURCE. VIC TIM CAME IN CONTACT WITH 30,000 TO 50,000 VOLTS OF D.C. CURRENT.

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The full compliance file on Mountain Cement Company LLC

A dated report covering the 26-year penalty trail, line-item violation pattern, contest and docket posture, rate-normalized peer benchmark, and full fatality history. Delivered as a PDF with the underlying data as CSV.