Mining Incidents

Mathy Construction Company: 1 recorded fatality controller

MSHA controller ID: M00893

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Email me when a new MSHA incident is filed at any mine Mathy Construction Company controls.

Fatalities
1
Total incidents
522
Mines on record
71
Years on record
1983–2026
Public-issuer link

APi Group Corp (APG) discloses mines under this controller in its SEC Dodd-Frank Section 1503 (EX-95) mine-safety filings.

Compliance record
MSHA citations since 2000
768
citations
82
significant & substantial
$98,819
proposed penalties
$91,214
paid to date
92% of proposed penalties paid to date, a $7,605 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
1,781
inspections on record
17,120
inspection hours
4.5
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.
768 citations across 17,120 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.
$99K
proposed penalties
$93K
current assessed
$91K
paid to date
$2K
outstanding
744 assessments are final orders; 40 contested dockets.
Of $17K in penalties contested before the Commission, $12K was upheld in final decisions.
As of the most recent assessment on 2026-06-30.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
Violation severity profile
Shares are computed over citations that carry the MSHA gravity and negligence coding; a small share of records are uncoded.
10.7%
significant & substantial
3.5%
high negligence or reckless
10.2%
reasonably likely or greater
50.6%
permanently disabling or fatal if injury occurs
Negligence coding: 0.5% none, 28.0% low, 67.9% moderate, 3.5% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
Injury rate, 2025
This rate is reportable injury cases per 100 full-time-equivalent workers per year, computed as 200,000 times cases divided by MSHA operator-reported employee-hours. Cases are injuries MSHA graded degree 01 through 07; accident-only events that hurt no one are excluded, and so are contractor injuries, whose hours do not attach to a single mine. Rates begin in 2000, when quarterly employment reporting starts, and are withheld below 20,000 hours in a year.
5.31
total case rate
2.66
days-away rate
0.000
fatality rate
Above average. The US metal and nonmetal mining average was 1.65 and the all-US-mining average was 1.97 cases per 100 workers.
Year total case rate days-away fatal
2026 7.13 2.04 0.000
2025 5.31 2.66 0.000
2024 3.18 2.27 0.000
2023 4.54 1.81 0.000
2022 3.79 2.84 0.000
2021 3.40 1.46 0.000
2020 1.96 0.49 0.000
2019 3.06 2.55 0.000
Source: injury cases from MSHA accident and injury records; employee-hours from MSHA quarterly employment reports. Rate is cases per 100 full-time-equivalent workers, operator employees only.
Health sampling
A sample is a point in time compliance measurement, not an individual exposure history. These figures describe MSHA sampling records and do not establish causation or personal dose.

Metal and nonmetal contaminants (personal samples)
Many samples are screening measurements of substances with no applicable exposure limit; they are counted as samples but excluded from every over-limit figure. Over-limit shares use only limit-tested samples.

Last sampled: 2026-07-22
4%
of limit-tested samples over the exposure limit
453
samples
132
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz1125 over
  • Respirable dust, <.1mg299
  • Nuisance dust, total, <1% Qtz21
  • Nuisance dust, respirable, <1% Qtz14
Source: MSHA respirable dust, quartz, and noise sampling records, updated weekly. Metal/nonmetal contaminant figures come from MSHA's Personal Health Samples and Area Samples files (public record), updated weekly.
When citations were contested
Contesting a citation before the Federal Mine Safety and Health Review Commission is a lawful right. These figures state the public outcomes of that process, from MSHA's Contested Violations file.
89 citations taken to the federal commission · 12% of citations on record
  • Settled 75 · 84%
  • Stood as issued 7 · 8%
  • Still open 7 · 8%
70%
S&S designation survived the contest
Counts a Significant & Substantial citation as surviving when a settlement or judge's decision kept the designation, or the contest was dismissed or defaulted so the citation stands as issued. Vacated and withdrawn citations, and settlements that removed the designation, count against.
of 20 decided S&S contests · industry: 79%
33%
Penalty reduction in decided contests
$17K proposed, $12K after decisions · industry: 39%
Source: MSHA Contested Violations file (public record), updated weekly. A dismissed or defaulted contest leaves the citation standing as issued; a vacated or withdrawn citation is removed from the violation record. Latest contest filed 2026-08-05. Vacated and withdrawn citations are removed from the file this view attributes through, so that outcome is slightly undercounted here.
Contested penalties
A reduction or dismissal at the Commission is a lawful outcome of contesting a proposed penalty. Figures are the proposed amount and the amount upheld in the docket's decision.
Largest penalties this controller contested before the Federal Mine Safety and Health Review Commission, with the outcome on record.
Docket Decision Judge Year Proposed / upheld
LAKE 2023-0239 Settlement Lewis 2023 $6K → $3K
LAKE 2011-892M Settlement Rae 2014 $2K → $2K
LAKE 2015-0098 Settlement Bulluck 2015 $2K → $224
LAKE 2020-0022 Settlement McCarthy 2020 $737 → $642
LAKE 2022-0271 Settlement Bulluck 2023 $696 → $302
LAKE 2010-202M Settlement Zielinski 2012 $634 → $450
Source: FMSHRC civil penalty dockets and decisions (public record), updated weekly.

Top causes

Incident timeline

2026
7
2025
13
2024
7
2023
10
2022
8
2021
7
2020
4
2019
6
2018
5
2017
8
2016
5
2015
6
2014
5
2013
9
2012
5
2011
7
2010
8
2009
4
2008
1
2007
4
2006
11
2005
26
2004
13
2003
15
2002
15
2001
29
2000
25
1999
39
1998
18
1997
20
1996
12
1995
13
1994
16
1993
14
1992
26
1991
22
1990
41
1989
21
1988
10 (1f)
1987
4
1986
2
1983
1

Operators under this controller

Mines on record

Fatalities under this controller

1 recorded
August 20, 1988 WI · Metal/Non-Metal backhoe operator, trackhoe operator Fatality · MACHINERY
Milestone Materials Div/Mathy Construction Co · Caught in, under or between running or meshing objects

VICTIM WENT INTO AREA OF DISCHARGE CONVEYORS TAIL ROLLER UNDERNEATH BREAKER AT PRIMARY CRUSHER.CONVEYOR BELT CAME TO COMPLETE STOP AT WHICH TIME BREAKER OPERATOR AND LOADER OPERATOR PROCEEDED TO INSPECT ABOVE NOTED AREA.DISCOVERED I.NAME ENTANGLED IN HOLD-DOWN ROLLER,TAIL ROLLER AND ON TOP OF CONVEYOR BELT.

For insurers, brokers, and safety consultants

Where Mathy Construction Company stands on silica, penalties, and injury rate

MSHA's standard limits respirable silica to 50 micrograms per cubic metre, but MSHA publishes dust and quartz as separate files and never the silica figure itself. We derive it per sample, score it against the limit, and set the operator's injury rate against a benchmark built from the full MSHA operator record. With the 26-year penalty trail, contest posture, and fatality history. Delivered as a PDF with the underlying data as CSV.

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