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W Thomas Mackall controller

MSHA controller ID: C00082

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Email me when a new MSHA incident is filed at any mine W Thomas Mackall controls.

Fatalities
1
Total incidents
189
Mines on record
14
Years on record
1983–2025
Compliance record
MSHA citations since 2000
2,221
citations
650
significant & substantial
$912,255
proposed penalties
$672,360
paid to date
74% of proposed penalties paid to date, a $239,895 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
784
inspections on record
31,677
inspection hours
7.0
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.
2,221 citations across 31,677 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.
$912K
proposed penalties
$672K
current assessed
$672K
paid to date
$38
outstanding
2,180 assessments are final orders; 23 contested dockets.
As of the most recent assessment on 2026-04-16.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.

Top causes

Incident timeline

2025
1
2024
1
2020
2
2019
1
2018
3
2017
4
2016
3
2015
4
2014
8
2013
4
2012
5
2011
11 (1f)
2010
7
2009
12
2008
14
2007
12
2006
5
2005
6
2004
5
2003
1
2002
3
2001
4
2000
9
1999
5
1998
2
1997
5
1996
6
1995
5
1994
4
1993
2
1992
7
1991
4
1990
7
1989
4
1988
6
1987
1
1986
1
1985
1
1984
1
1983
3

Operators under this controller

Mines on record

Fatalities under this controller

1 recorded
April 25, 2011 OH · Metal/Non-Metal roof bolter, rock bolter, pinner, mobile roof support operator (mrs) Fatality · FALL OF ROOF OR BACK
Subtropolis Mining Co. · Struck by falling object

An employee was struck by a slab of rock that measured approximately 8 inches to 12 inches thick by 50 to 70 inches wide by 74 inches long. The roof fall occurred at the 34 Main between crosscut 1 North 4 and 1 North 5.

For insurers, brokers, and safety consultants

The full compliance file on W Thomas Mackall

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.

Get the report ($149) See a sample report Monitor a whole book of operators, $99/mo