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Ambush Mining Inc: 748 MSHA citations operator

Controlled by Brandon Nguyen; Michael Turner
MSHA operator ID: P24110

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Fatalities
0
Total incidents
12
Mines on record
2
Years on record
1999–2022
Compliance record
MSHA citations since 2000
748
citations
159
significant & substantial
$192,924
proposed penalties
$152,122
paid to date
79% of proposed penalties paid to date, a $40,803 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
184
inspections on record
6,829
inspection hours
11.0
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.
748 citations across 6,829 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.
$193K
proposed penalties
$152K
current assessed
$152K
paid to date
$0
outstanding
734 assessments are final orders; 24 contested dockets.
Of $105K in penalties contested before the Commission, $63K was upheld in final decisions.
As of the most recent assessment on 2023-12-05.
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.
21.5%
significant & substantial
4.2%
high negligence or reckless
21.5%
reasonably likely or greater
25.5%
permanently disabling or fatal if injury occurs
Negligence coding: 0.4% none, 37.5% low, 57.9% moderate, 4.2% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
Injury rate, 2021
ⓘ 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.
0.00
total case rate
0.00
days-away rate
0.000
fatality rate
Below average. The US coal mining average was 3.35 and the all-US-mining average was 2.19 cases per 100 workers.
Under 100,000 employee-hours were reported that year, so a single case moves the rate by two or more. Read the figure as approximate.
Year total case rate days-away fatal
2021 * 0.00 0.00 0.000
2020 * 9.22 9.22 0.000
2019 * 0.00 0.00 0.000
2018 * 0.00 0.00 0.000
2014 * 9.79 9.79 0.000
2013 * 0.00 0.00 0.000
2012 * 6.55 6.55 0.000
2011 * 0.00 0.00 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.

Respirable coal dust
ⓘ Respirable coal dust and silica figures cover coal facilities. Dust compliance is measured against the current 1.5 mg/m3 standard; samples predating the 2014 standard are included, so compliance rates are a coarse historical signal.

Last sampled: 2023-09-15
97%
within 1.5 mg/m3
1,249
samples
5.00
dust max (mg/m3)
2
over MSHA ECV
ⓘ The excessive concentration value (ECV) is MSHA's own per-sample enforcement threshold, which builds in measurement uncertainty; a sample over its ECV can trigger a citation. The count covers only samples MSHA assigned an ECV.
528 samples taken by MSHA inspectors, 721 by the operator.
Most-sampled occupations
  • CONTINUOUS MINER OPERATOR626
  • ROOF BOLTER (TWIN HEAD) (RETURN SIDE)114
  • SHUTTLE CAR OPERATOR (STANDARD SIDE)106

Silica (quartz)

Last sampled: 2023-09-18
4.7
silica avg (%)
69
samples
16.4
silica max (%)
Most-sampled occupations
  • CONTINUOUS MINER OPERATOR49
  • ROOF BOLTER (TWIN HEAD) (RETURN SIDE)18
See US coal mines ranked by silica in their dust samples.

Noise
ⓘ The share counts noise samples whose measured dose exceeded the 90 dBA permissible exposure limit. It describes the sampled workplace, not what reached the miner's ear: hearing conservation programs and the hearing protection worn during the shift are recorded separately and are not reflected here.

Last sampled: 2023-09-15
3%
over PEL
111
samples
Most-sampled occupations
  • SHUTTLE CAR OPERATOR (STANDARD SIDE)24
  • CONTINUOUS MINER OPERATOR19
  • SHUTTLE CAR OPERATOR (OFF STANDARD)12
See US mines ranked by noise samples over the legal limit.
Source: MSHA respirable dust, quartz, and noise sampling records, 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.
165 citations taken to the federal commission · 22% of citations on record
  • Settled 164 · 99%
  • Stood as issued 1 · 1%
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 33 decided S&S contests · industry: 79%
45%
Penalty reduction in decided contests
$107K proposed, $58K 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 2024-02-27. 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 operator contested before the Federal Mine Safety and Health Review Commission, with the outcome on record.
Docket Decision Judge Year Proposed / upheld
WEVA 2021-0523 Settlement Bulluck 2021 $10K → $620
WEVA 2021-0274 Settlement Lewis 2021 $10K → $6K
WEVA 2022-0089 Settlement Bulluck 2023 $9K → $6K
WEVA 2024-0038 Settlement 2024 $9K → $6K
WEVA 2021-0273 Settlement Lewis 2021 $9K → $4K
WEVA 2022-0174 Settlement Moran 2022 $7K → $4K
Source: FMSHRC civil penalty dockets and decisions (public record), updated weekly.

Top causes

Incident timeline

2022
1
2021
1
2020
1
2018
1
2014
2
2013
1
2012
3
2000
1
1999
1

Mines on record

For insurers, brokers, and safety consultants

Where Ambush Mining 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.

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