Two miners were moving a portable crusher with a remote control. The track on the crusher contacted a rock, ejecting it and causing it to forcefully hit two miners. The miners were taken to the hospital to have the rocks removed.
Antoine Rock Quarry: 67 MSHA citations Metal/Non-Metal
Antoine Rock Quarry has $18K in proposed MSHA penalties and $7K outstanding across 3 contested dockets, plus health sampling and the full incident record.
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- Fatalities
- 0
- Total incidents
- 2
- Years on record
- 2026
- Latest incident
- Feb 2026
Compliance record
MSHA citations since 2012
67
citations
14
significant & substantial
$18,213
proposed penalties
$10,680
paid to date
59% of proposed penalties paid to date, a $7,533 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2012
28
inspections on record
476
inspection hours
n/a
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.Rate withheld: 476 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Antoine Rock Quarry has $18K in proposed MSHA penalties and $7K outstanding across 3 contested dockets.
Penalty disposition
ⓘ
Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.$18K
proposed penalties
$18K
current assessed
$11K
paid to date
$7K
outstanding
62 assessments are final orders; 3 contested dockets.
Of $4K in penalties contested before the Commission, $3K was upheld in final decisions.
As of the most recent assessment on 2026-07-08.
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.20.9%
significant & substantial
14.9%
high negligence or reckless
20.9%
reasonably likely or greater
38.8%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 0.0% low, 85.1% moderate, 14.9% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, 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.
6
citations taken to the federal commission · 9% of citations on record
- Settled 4 · 67%
- Stood as issued 2 · 33%
100%
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 2 decided S&S contests · industry: 79%
11%
Penalty reduction in decided contests
$4K proposed, $3K 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 2021-05-18.
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 mine contested before the Federal Mine Safety and Health Review Commission, with the outcome on record.
| Docket | Decision | Judge | Year | Proposed / upheld |
|---|---|---|---|---|
| CENT 2019-0271 | Settlement | Bulluck | 2019 | $2K → $2K |
| CENT 2019-0185 | Default | McCarthy | 2019 | $1K → $1K |
| CENT 2021-0142 | Default | 2021 | $125 → $125 |
Source: FMSHRC civil penalty dockets and decisions (public record), updated weekly.
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: 2026-07-14
ⓘ
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.8%
of limit-tested samples over the exposure limit
30
samples
13
limit-tested
Most sampled contaminants
- Quartz, respirable, >1% Qtz61 over
- Respirable dust, <.1mg16
- Arsenic fumes4
- Beryllium fumes4
Show the individual readings (78)
| Date | Contaminant | Concentration | Limit | Conc / limit | Occupation |
|---|---|---|---|---|---|
| 2018-12-19 | Quartz, respirable, >1% Qtz | 1.43 | 0.54 | 2.65 | Supervisor, Co. Official |
| 2026-07-14 | Quartz, respirable, >1% Qtz | 0.18 | Mechanic | ||
| 2026-07-14 | Respirable dust, <.1mg | 0 | Rotary Bucket Ex. Operator | ||
| 2026-07-14 | Respirable dust, <.1mg | 0 | Front-end Loader Operator | ||
| 2026-07-14 | Respirable dust, <.1mg | 0 | Truck Driver | ||
| 2024-02-07 | Respirable dust, <.1mg | 0 | Front-end Loader Operator | ||
| 2024-02-07 | Respirable dust, <.1mg | 0 | Truck Driver | ||
| 2021-11-17 | Respirable dust, <.1mg | 0 | Front-end Loader Operator | ||
| 2020-03-18 | Respirable dust, <.1mg | 0 | Crusher Oper/Worker | ||
| 2019-03-26 | Respirable dust, <.1mg | 0 | Supervisor, Co. Official | ||
| 2018-12-19 | Respirable dust, <.1mg | 0 | Front-end Loader Operator | ||
| 2018-12-19 | Quartz, respirable, >1% Qtz | 0.24 | 0.29 | 0.83 | Backhoe Operator |
| 2017-01-31 | Quartz, respirable, >1% Qtz | 0.15 | 0.4 | 0.38 | Backhoe Operator |
| 2017-01-31 | Respirable dust, <.1mg | 0 | Front-end Loader Operator | ||
| 2017-01-31 | Respirable dust, <.1mg | 0 | Front-end Loader Operator | ||
| 2017-01-31 | Quartz, respirable, >1% Qtz | 0.13 | 0.49 | 0.27 | Backhoe Operator |
| 2017-01-31 | Quartz, respirable, >1% Qtz | 0.3 | 0.51 | 0.59 | Supervisor, Co. Official |
| 2013-11-13 | Respirable dust, <.1mg | 0 | Shovel Operator | ||
| 2013-11-13 | Respirable dust, <.1mg | 0 | Front-end Loader Operator | ||
| 2013-11-13 | Respirable dust, <.1mg | 0 | Front-end Loader Operator | ||
| 2013-11-13 | Respirable dust, <.1mg | 0 | Shovel Operator | ||
| 2013-11-13 | Respirable dust, <.1mg | 0 | Front-end Loader Operator | ||
| 2012-09-19 | Magnesium oxide fumes | 0 | 10 | 0.00 | Front-end Loader Operator |
| 2012-09-19 | Manganese fumes | 0 | 5 | 0.00 | Front-end Loader Operator |
| 2012-09-19 | Molybdenum fumes | 0 | 10 | 0.00 | Front-end Loader Operator |
| 2012-09-19 | Nickel fumes | 0 | 1 | 0.00 | Front-end Loader Operator |
| 2012-09-19 | Vanadium fumes | 0 | 50 | 0.00 | Front-end Loader Operator |
| 2012-09-19 | Zinc oxide fumes | 0 | 5 | 0.00 | Front-end Loader Operator |
| 2012-09-19 | Arsenic fumes | 0 | 500 | 0.00 | Rotary Bucket Ex. Operator |
| 2012-09-19 | Beryllium fumes | 0 | 2 | 0.00 | Rotary Bucket Ex. Operator |
| 2012-09-19 | Cadmium oxide fumes | 0 | 100 | 0.00 | Rotary Bucket Ex. Operator |
| 2012-09-19 | Chromium, insoluble | 0 | 1 | 0.00 | Rotary Bucket Ex. Operator |
| 2012-09-19 | Cobalt fumes | 0 | 100 | 0.00 | Rotary Bucket Ex. Operator |
| 2012-09-19 | Copper fumes | 0 | 100 | 0.00 | Rotary Bucket Ex. Operator |
| 2012-09-19 | Iron oxide fumes | 0 | 10 | 0.00 | Rotary Bucket Ex. Operator |
| 2012-09-19 | Lead fumes | 0 | 150 | 0.00 | Rotary Bucket Ex. Operator |
| 2012-09-19 | Magnesium oxide fumes | 0 | 10 | 0.00 | Rotary Bucket Ex. Operator |
| 2012-09-19 | Manganese fumes | 0 | 5 | 0.00 | Rotary Bucket Ex. Operator |
| 2012-09-19 | Molybdenum fumes | 0 | 10 | 0.00 | Rotary Bucket Ex. Operator |
| 2012-09-19 | Nickel fumes | 0 | 1 | 0.00 | Rotary Bucket Ex. Operator |
| 2012-09-19 | Vanadium fumes | 0 | 50 | 0.00 | Rotary Bucket Ex. Operator |
| 2012-09-19 | Zinc oxide fumes | 0 | 5 | 0.00 | Rotary Bucket Ex. Operator |
| 2012-09-19 | Arsenic fumes | 0 | 500 | 0.00 | Rotary Bucket Ex. Operator |
| 2012-09-19 | Beryllium fumes | 0 | 2 | 0.00 | Rotary Bucket Ex. Operator |
| 2012-09-19 | Cadmium oxide fumes | 0 | 100 | 0.00 | Rotary Bucket Ex. Operator |
| 2012-09-19 | Chromium, insoluble | 0 | 1 | 0.00 | Rotary Bucket Ex. Operator |
| 2012-09-19 | Cobalt fumes | 0 | 100 | 0.00 | Rotary Bucket Ex. Operator |
| 2012-09-19 | Copper fumes | 0 | 100 | 0.00 | Rotary Bucket Ex. Operator |
| 2012-09-19 | Arsenic fumes | 0 | 500 | 0.00 | Utility Man |
| 2012-09-19 | Lead fumes | 0 | 150 | 0.00 | Rotary Bucket Ex. Operator |
| 2012-09-19 | Magnesium oxide fumes | 0 | 10 | 0.00 | Rotary Bucket Ex. Operator |
| 2012-09-19 | Manganese fumes | 0 | 5 | 0.00 | Rotary Bucket Ex. Operator |
| 2012-09-19 | Molybdenum fumes | 0 | 10 | 0.00 | Rotary Bucket Ex. Operator |
| 2012-09-19 | Nickel fumes | 0 | 1 | 0.00 | Rotary Bucket Ex. Operator |
| 2012-09-19 | Vanadium fumes | 0 | 50 | 0.00 | Rotary Bucket Ex. Operator |
| 2012-09-19 | Zinc oxide fumes | 0 | 5 | 0.00 | Rotary Bucket Ex. Operator |
| 2012-09-19 | Iron oxide fumes | 0 | 10 | 0.00 | Rotary Bucket Ex. Operator |
| 2012-09-19 | Beryllium fumes | 0 | 2 | 0.00 | Utility Man |
| 2012-09-19 | Cadmium oxide fumes | 0 | 100 | 0.00 | Utility Man |
| 2012-09-19 | Chromium, insoluble | 0 | 1 | 0.00 | Utility Man |
| 2012-09-19 | Cobalt fumes | 0 | 100 | 0.00 | Utility Man |
| 2012-09-19 | Copper fumes | 0.5 | 100 | 0.01 | Utility Man |
| 2012-09-19 | Iron oxide fumes | 0.08 | 10 | 0.01 | Utility Man |
| 2012-09-19 | Lead fumes | 0.37 | 150 | 0.00 | Utility Man |
| 2012-09-19 | Magnesium oxide fumes | 0 | 10 | 0.00 | Utility Man |
| 2012-09-19 | Manganese fumes | 0.01 | 5 | 0.00 | Utility Man |
| 2012-09-19 | Molybdenum fumes | 0 | 10 | 0.00 | Utility Man |
| 2012-09-19 | Nickel fumes | 0 | 1 | 0.00 | Utility Man |
| 2012-09-19 | Vanadium fumes | 0 | 50 | 0.00 | Utility Man |
| 2012-09-19 | Zinc oxide fumes | 0 | 5 | 0.00 | Utility Man |
| 2012-09-19 | Arsenic fumes | 0 | 500 | 0.00 | Front-end Loader Operator |
| 2012-09-19 | Beryllium fumes | 0 | 2 | 0.00 | Front-end Loader Operator |
| 2012-09-19 | Cadmium oxide fumes | 0 | 100 | 0.00 | Front-end Loader Operator |
| 2012-09-19 | Chromium, insoluble | 0 | 1 | 0.00 | Front-end Loader Operator |
| 2012-09-19 | Cobalt fumes | 0 | 100 | 0.00 | Front-end Loader Operator |
| 2012-09-19 | Copper fumes | 0 | 100 | 0.00 | Front-end Loader Operator |
| 2012-09-19 | Iron oxide fumes | 0 | 10 | 0.00 | Front-end Loader Operator |
| 2012-09-19 | Lead fumes | 0.23 | 150 | 0.00 | Front-end Loader Operator |
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.
Antoine Rock Quarry recorded 0.00 reportable injury cases per 100 full-time workers in 2025.
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.0.00
total case rate
0.00
days-away rate
0.000
fatality rate
No reportable injury cases in any year shown. Employee-hours were reported in each of those years, so these are true zeros rather than missing data. Citations, listed in the compliance record above, are inspector-found violations and are counted separately from worker injuries.
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.
In Arkansas, metal and nonmetal mining averaged 1.60 cases per 100 workers that year.
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 |
|---|---|---|---|
| 2025 * | 0.00 | 0.00 | 0.000 |
| 2024 * | 0.00 | 0.00 | 0.000 |
| 2023 * | 0.00 | 0.00 | 0.000 |
| 2022 * | 0.00 | 0.00 | 0.000 |
| 2021 * | 0.00 | 0.00 | 0.000 |
| 2020 * | 0.00 | 0.00 | 0.000 |
| 2019 * | 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.
Ownership history
- Antoine Rock Quarry 2012 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
| Year | Employees |
|---|---|
| 2026 | 16 |
| 2025 | 15 |
| 2024 | 15 |
| 2023 | 15 |
| 2022 | 11 |
| 2021 | 15 |
| 2020 | 15 |
| 2019 | 10 |
| 2018 | 9 |
| 2017 | 7 |
| 2016 | 8 |
| 2015 | 9 |
| 2014 | 8 |
| 2013 | 5 |
| 2012 | 3 |
Source: MSHA quarterly employment and production, updated weekly.
Antoine Rock Quarry sits in Pike County, Arkansas, where the Census mining category is 0.6% of county employment.
Local economic context
ⓘ
County figures come from the US Census Bureau's American Community Survey, 5-year pooled estimates, so the 2023 vintage covers 2019 through 2023. The Census category is 'mining, quarrying, and oil and gas extraction', which is broader than MSHA jurisdiction and includes oil and gas workers no mine employs. These figures describe the surrounding county, not this mine, and are not a factor in any specific incident.Pike County, Arkansas · Population 10,182
0.6%
Mining share of county employment
$51,000
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.
Quarterly safety rates
ⓘ
Citations per million reported employee-hours. Rates begin in 2000, when MSHA's quarterly employment data starts; earlier incidents are counted but cannot be rate-adjusted. Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.Citations per million employee-hours, as reported to MSHA
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2026 Q2 | 6,787 | 0 | 0 | 0.0 |
| 2026 Q1 | 7,445 | 7 | 1 | 940.2 |
| 2025 Q4 | 6,134 | 0 | 0 | 0.0 |
| 2025 Q3 | 6,821 | 0 | 0 | 0.0 |
| 2025 Q2 | 7,324 | 3 | 0 | 409.6 |
| 2025 Q1 | 7,163 | 0 | 0 | 0.0 |
| 2024 Q4 | 8,056 | 2 | 1 | 248.3 |
| 2024 Q3 | 6,594 | 1 | 0 | 151.7 |
Show 50 earlier quarters Hide earlier quarters
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2024 Q2 | 7,728 | 0 | 0 | 0.0 |
| 2024 Q1 | 6,361 | 1 | 0 | 157.2 |
| 2023 Q4 | 6,549 | 0 | 0 | 0.0 |
| 2023 Q3 | 7,714 | 4 | 1 | 518.5 |
| 2023 Q2 | 7,622 | 2 | 1 | 262.4 |
| 2023 Q1 | 6,790 | 0 | 0 | 0.0 |
| 2022 Q4 | 5,718 | 0 | 0 | 0.0 |
| 2022 Q3 | 5,608 | 0 | 0 | 0.0 |
| 2022 Q2 | 4,991 | 1 | 0 | 200.4 |
| 2022 Q1 | 6,388 | 0 | 0 | 0.0 |
| 2021 Q4 | 6,548 | 1 | 0 | 152.7 |
| 2021 Q3 | 7,867 | 0 | 0 | 0.0 |
| 2021 Q2 | 7,419 | 0 | 0 | 0.0 |
| 2021 Q1 | 7,428 | 3 | 0 | 403.9 |
| 2020 Q4 | 7,526 | 0 | 0 | 0.0 |
| 2020 Q3 | 6,524 | 0 | 0 | 0.0 |
| 2020 Q2 | 6,041 | 2 | 1 | 331.1 |
| 2020 Q1 | 6,346 | 1 | 0 | 157.6 |
| 2019 Q4 | 5,187 | 0 | 0 | 0.0 |
| 2019 Q3 | 5,295 | 0 | 0 | 0.0 |
| 2019 Q2 | 5,138 | 0 | 0 | 0.0 |
| 2019 Q1 | 5,421 | 5 | 2 | 922.3 |
| 2018 Q4 | 4,878 | 4 | 0 | 820.0 |
| 2018 Q3 | 4,774 | 4 | 0 | 837.9 |
| 2018 Q2 | 4,577 | 0 | 0 | 0.0 |
| 2018 Q1 | 3,602 | 0 | 0 | 0.0 |
| 2017 Q4 | 4,125 | 6 | 3 | 1454.5 |
| 2017 Q3 | 3,796 | 0 | 0 | 0.0 |
| 2017 Q2 | 3,871 | 0 | 0 | 0.0 |
| 2017 Q1 | 3,417 | 3 | 0 | 878.0 |
| 2016 Q4 | 3,284 | 0 | 0 | 0.0 |
| 2016 Q3 | 3,584 | 0 | 0 | 0.0 |
| 2016 Q2 | 4,047 | 3 | 1 | 741.3 |
| 2016 Q1 | 4,152 | 0 | 0 | 0.0 |
| 2015 Q4 | 4,230 | 0 | 0 | 0.0 |
| 2015 Q3 | 3,519 | 0 | 0 | 0.0 |
| 2015 Q2 | 5,176 | 0 | 0 | 0.0 |
| 2015 Q1 | 3,586 | 0 | 0 | 0.0 |
| 2014 Q4 | 2,610 | 2 | 0 | 766.3 |
| 2014 Q3 | 3,475 | 0 | 0 | 0.0 |
| 2014 Q2 | 3,202 | 0 | 0 | 0.0 |
| 2014 Q1 | 3,460 | 0 | 0 | 0.0 |
| 2013 Q4 | 2,505 | 3 | 1 | 1197.6 |
| 2013 Q3 | 2,802 | 0 | 0 | 0.0 |
| 2013 Q2 | 2,245 | 0 | 0 | 0.0 |
| 2013 Q1 | 1,568 | 2 | 1 | 1275.5 |
| 2012 Q4 | 2,050 | 0 | 0 | 0.0 |
| 2012 Q3 | 1,040 | 1 | 0 | 961.5 |
| 2012 Q2 | 10 | 0 | 0 | 0.0 |
| 2012 Q1 | 40 | 0 | 0 | 0.0 |
No fatalities recorded at this mine.
Reportable incidents
2 on file2026 · 2 incidents
February 17, 2026
AR · Metal/Non-Metal
laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman
MACHINERY
Antoine Rock Quarry · Struck by flying object
February 17, 2026
AR · Metal/Non-Metal
maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech
MACHINERY
Antoine Rock Quarry · Struck by flying object
Two miners were moving a portable crusher with a remote control. The track on the crusher contacted a rock, ejecting it and forcefully hitting two miners. The miners were taken to the hospital to have the rocks removed.