Mining Incidents

United States Lime & Minerals Inc: 4 recorded fatalities controller

MSHA controller ID: M08976

Watch this controller

Email me when a new MSHA incident is filed at any mine United States Lime & Minerals Inc controls.

Fatalities
4
Total incidents
565
Mines on record
11
Years on record
1989–2026
Public-issuer link

UNITED STATES LIME & MINERALS INC (USLM) discloses mines under this controller in its SEC Dodd-Frank Section 1503 (EX-95) mine-safety filings.

Compliance record
MSHA citations since 2000
2,297
citations
530
significant & substantial
$1,072,435
proposed penalties
$895,182
paid to date
83% of proposed penalties paid to date, a $177,253 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
577
inspections on record
18,016
inspection hours
12.7
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.
2,297 citations across 18,016 inspection hours.
Source: MSHA inspections data, updated weekly.
Imminent-danger orders
A Section 107(a) order removes miners from an area when an inspector finds an imminent danger. Each order is lifted once the condition is corrected, so this counts orders issued, not orders now in effect.
5
Section 107(a) orders
Most recent order: 2020-08-26.
On record since 2016.
Source: MSHA imminent-danger order records, 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.
$1.1M
proposed penalties
$937K
current assessed
$895K
paid to date
$42K
outstanding
2,212 assessments are final orders; 80 contested dockets.
Of $492K in penalties contested before the Commission, $356K was upheld in final decisions.
As of the most recent assessment on 2026-06-24.
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.
23.3%
significant & substantial
5.8%
high negligence or reckless
24.0%
reasonably likely or greater
47.3%
permanently disabling or fatal if injury occurs
Negligence coding: 0.2% none, 15.6% low, 78.5% moderate, 5.7% 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.
1.95
total case rate
0.65
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 2.57 1.92 0.641
2025 1.95 0.65 0.000
2024 1.61 1.28 0.000
2023 2.63 2.30 0.329
2022 2.68 1.15 0.000
2021 4.07 1.63 0.000
2020 3.53 2.35 0.000
2019 1.62 1.21 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: 2026-08-06
4%
of limit-tested samples over the exposure limit
474
samples
375
limit-tested
Most sampled contaminants
  • Nuisance dust, total, <1% Qtz358 over
  • Diesel particulate (total carbon)824 over
  • Calcium oxide483 over
  • Nuisance dust, respirable, <1% Qtz1711 over

Area samples (mill and shop air)

Last sampled: 2026-06-03
12
samples
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.
245 citations taken to the federal commission · 11% of citations on record
  • Settled 225 · 92%
  • Stood as issued 9 · 4%
  • Still open 11 · 4%
69%
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 131 decided S&S contests · industry: 79%
27%
Penalty reduction in decided contests
$474K proposed, $345K 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 2026-06-09. 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
CENT 2011-123M Settlement Gill 2013 $221K → $201K
CENT 2008-671M Settlement Zielinski 2013 $21K → $14K
CENT 2022-0062 Settlement Miller 2022 $15K → $7K
CENT 2021-0098 Settlement Miller 2021 $15K → $9K
CENT 2010-916M Settlement McCarthy 2012 $14K → $9K
CENT 2022-0130 Settlement Simonton 2022 $14K → $9K
Source: FMSHRC civil penalty dockets and decisions (public record), updated weekly.

Top causes

Incident timeline

2026
6 (1f)
2025
9
2024
7
2023
11 (1f)
2022
9
2021
10
2020
10
2019
5
2018
12
2017
6
2016
5
2015
13
2014
18
2013
8
2012
11
2011
15
2010
15 (1f)
2009
13
2008
12
2007
19
2006
24
2005
16
2004
9
2003
14
2002
8
2001
22
2000
13
1999
17
1998
17
1997
14
1996
22 (1f)
1995
16
1994
17
1993
22
1992
14
1991
33
1990
44
1989
29

Operators under this controller

Mines on record

Fatalities under this controller

4 recorded
July 6, 2026 OK · Metal/Non-Metal utility man, shift tech, service/dump truck operator Fatality · POWERED HAULAGE
U.S. Lime Company-St. Clair · Caught in, under or between a moving and a stationary object

At the time of filing it is believed the miner was riding on the back of a railcar when the railcar derailed and pinned the miner between the railcar and a nearby structure. The miner was transported to a medical facility where EE died the following day.

March 9, 2023 TX · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver Fatality · POWERED HAULAGE
Texas Lime Company · Caught in, under or between a moving and a stationary object

At time of filing it is believed a front-end loader struck the back of the tractor trailer. The position of the victim at the time of the accident is still under investigation. The victim was found under the rear driver's side tires of the tractor.

May 24, 2010 OK · Metal/Non-Metal belt foreman, maintenance foreman, maintenance supervisor Fatality · MACHINERY
U.S. Lime Company-St. Clair · Caught in, under or between (Not Elsewhere Classified)

Employee was working on a Raymond Roller Mill when he entered into the roller area of the mill. The mill was energized and the rollers crushed him.

December 12, 1996 PA · Metal/Non-Metal shaft repair, skip tender, station tender Fatality · POWERED HAULAGE
Corson Lime Company · Caught in, under or between a moving and a stationary object

EE WAS FOUND BY A FELLOW EE ON THE GROUND FACE DOWN WITH HIS HEAD TOWARD FORKLIFT TRUCK. THE TRUCK HAD FLIPPED ON ITS SIDE AND THE BAR FROM THE FALLEN OBJECT PROTECTION FELL ON HIS BACK. FROM VISUAL OBSERVATION DURING MSHA INSPECTION IT IS EVIDENT THAT THE FORKLIFTS RT FRONT TIRE HIT A PIPE PROTRUDING FROM THE GROUND FLIPPED OVER ON ITS SIDE.

For insurers, brokers, and safety consultants

Where United States Lime & Minerals Inc 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.

The federal record itself stays free on this site. What costs money, and why.

See a sample report
Need a different cut of the data? Ask us