Mining Incidents

Dicalite Management Group LLC: 1 recorded fatality controller

MSHA controller ID: M00074

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Email me when a new MSHA incident is filed at any mine Dicalite Management Group LLC controls.

Fatalities
1
Total incidents
700
Mines on record
10
Years on record
1983–2025
Compliance record
MSHA citations since 2000
784
citations
208
significant & substantial
$223,665
proposed penalties
$188,663
paid to date
84% of proposed penalties paid to date, a $35,002 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
264
inspections on record
5,830
inspection hours
13.4
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.
784 citations across 5,830 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.
1
Section 107(a) orders
Most recent order: 2022-04-04.
On record since 2022.
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.
$224K
proposed penalties
$189K
current assessed
$189K
paid to date
$302
outstanding
777 assessments are final orders; 31 contested dockets.
Of $105K in penalties contested before the Commission, $71K was upheld in final decisions.
As of the most recent assessment on 2026-06-02.
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.
26.7%
significant & substantial
4.9%
high negligence or reckless
27.5%
reasonably likely or greater
50.3%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 15.9% low, 79.2% moderate, 4.9% 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.
1.12
total case rate
1.12
days-away rate
0.000
fatality rate
Below 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 * 0.00 0.00 0.000
2025 1.12 1.12 0.000
2024 0.00 0.00 0.000
2023 0.00 0.00 0.000
2022 3.47 0.00 0.000
2021 10.37 1.30 0.000
2020 1.41 0.00 0.000
2019 9.83 4.91 0.000
* Fewer than 100,000 employee-hours that year; the rate is less stable.
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: 2026-06-02
2%
of limit-tested samples over the exposure limit
172
samples
85
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz181 over
  • Nuisance dust, total, <1% Qtz41 over
  • Unlisted Particulate, respirable, <1% Qtz61
  • Respirable dust, <.1mg12

Area samples (mill and shop air)

Last sampled: 2004-09-02, 21 years ago
1
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.
89 citations taken to the federal commission · 11% of citations on record
  • Settled 85 · 96%
  • Stood as issued 4 · 4%
73%
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 48 decided S&S contests · industry: 79%
37%
Penalty reduction in decided contests
$77K proposed, $49K 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 2021-11-09. 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
WEST 2005-30M Settlement Manning 2007 $34K → $22K
CENT20010400M Settlement Melick 2002 $16K → $12K
CENT 2011-29M Settlement Lesnick 2011 $11K → $5K
CENT20010258M Settlement Barbour 2001 $6K → $4K
WEST 2011-341M Settlement Lesnick 2011 $5K → $4K
CENT 2011-211M Settlement Lewis 2011 $4K → $4K
Source: FMSHRC civil penalty dockets and decisions (public record), updated weekly.

Top causes

Incident timeline

2025
1
2022
4
2021
8
2020
1
2019
8
2018
6
2017
6
2016
6
2015
5
2014
2
2013
4
2012
1
2011
3
2010
2
2009
3
2008
9
2007
2
2006
7
2005
9
2004
16
2003
13
2002
20
2001
19
2000
22
1999
8
1998
12
1997
21
1996
26
1995
28
1994
43
1993
28
1992
29
1991
27
1990
66 (1f)
1989
40
1988
28
1987
34
1986
32
1985
40
1984
32
1983
29

Operators under this controller

Mines on record

Fatalities under this controller

1 recorded
December 15, 1990 NM · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator Fatality · POWERED HAULAGE
Dicaperl Minerals LLC · Caught in, under or between a moving and a stationary object

EMPLOYEES WERE PUSHING RAIL CAR INTO PLACE FOR TARE WEIGHING & LOADING WITH FRONT-END LOADER EMPLOYEE WAS FATALLY INJURED-CAUGHT BETWEEN RAIL & RAIL CAR

For insurers, brokers, and safety consultants

Where Dicalite Management Group LLC 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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