Mining Incidents

Mulzer Crushed Stone Inc operator

Controlled by CRH PLC
MSHA operator ID: L00309
Fatalities
1
Total incidents
629
Mines on record
15
Years on record
1983–2026
Compliance record
MSHA citations since 2000
1,102
citations
213
significant & substantial
$301,426
proposed penalties
$243,023
paid to date
81% of proposed penalties paid to date, a $58,403 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
831
inspections on record
20,158
inspection hours
5.5
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.
1,102 citations across 20,158 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.
$301K
proposed penalties
$250K
current assessed
$243K
paid to date
$7K
outstanding
1,069 assessments are final orders; 37 contested dockets.
As of the most recent assessment on 2026-05-28.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.

Top causes

Incident timeline

2026
3
2025
8
2024
5
2023
7 (1f)
2022
6
2021
3
2020
8
2019
6
2018
6
2017
12
2016
15
2015
17
2014
9
2013
10
2012
13
2011
27
2010
25
2009
18
2008
15
2007
8
2006
20
2005
35
2004
29
2003
23
2002
21
2001
37
2000
25
1999
33
1998
19
1997
16
1996
14
1995
8
1994
16
1993
7
1992
8
1991
13
1990
7
1989
20
1988
15
1987
14
1986
9
1985
9
1984
5
1983
5

Mines on record

Fatalities under this operator

1 recorded
September 12, 2023 IN · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver Fatality · POWERED HAULAGE
Mulzer Crushed Stone Inc · Struck against a moving object

Unknown- Truck over traveled dump site through berm. Truck traveled down and resting submerged in pit. Accident under investigation.

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The full compliance file on Mulzer Crushed Stone Inc

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.