Black Rock Quarry has $16K in proposed MSHA penalties and $0 outstanding across 3 contested dockets, plus health sampling and the full incident record.
Watch this mine
Email me when a new MSHA incident is filed at Black Rock Quarry.
Fatalities
0
Total incidents
18
Years on record
1986–2007
Latest incident
Aug 2007
Compliance record
MSHA citations since 2000
81
citations
13
significant & substantial
$16,117
proposed penalties
$15,250
paid to date
95% of proposed penalties paid to date, a $867 gap.
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.
81 citations across 1,112 inspection hours.
Source: MSHA inspections data, updated weekly.
Black Rock Quarry has $16K in proposed MSHA penalties and $0 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.
$16K
proposed penalties
$15K
current assessed
$15K
paid to date
$0
outstanding
81 assessments are final orders; 3 contested dockets.
Of $2K in penalties contested before the Commission, $2K was upheld in final decisions.
As of the most recent assessment on 2025-11-03.
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.
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.
8citations taken to the federal commission · 10% of citations on record
Settled
8 · 100%
33%
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 Vacated and withdrawn citations, and settlements that removed the designation, count against.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 6 decided S&S contests · industry: 79%
26%
Penalty reduction in decided contests
$2K proposed, $2K 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 2011-12-12.
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.
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: 2024-11-19
0%
of limit-tested samples over the exposure limit
47
samples
13
limit-tested
Most sampled contaminants
Respirable dust, <.1mg32
Nuisance dust, respirable, <1% Qtz9
Quartz, respirable, >1% Qtz5
Unlisted Particulate, respirable, <1% Qtz1
Show the individual readings (47)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2024-11-19
Respirable dust, <.1mg
0
Utility Man
2024-11-19
Respirable dust, <.1mg
0
Front-end Loader Operator
2024-11-19
Respirable dust, <.1mg
0
Rotary Bucket Ex. Operator
2024-11-19
Respirable dust, <.1mg
0
Truck Driver
2019-09-25
Nuisance dust, respirable, <1% Qtz
0.45
10
0.05
Crusher Oper/Worker
2019-09-25
Respirable dust, <.1mg
0
Truck Driver
2019-09-25
Respirable dust, <.1mg
0
Front-end Loader Operator
2019-09-25
Respirable dust, <.1mg
0
Drill Operator, Rotary Air
2019-03-27
Respirable dust, <.1mg
0
Front-end Loader Operator
2019-03-27
Respirable dust, <.1mg
0
Truck Driver
2019-03-27
Quartz, respirable, >1% Qtz
0.4
Truck Driver
2019-03-27
Nuisance dust, respirable, <1% Qtz
0.93
10
0.09
Crusher Oper/Worker
2019-03-27
Respirable dust, <.1mg
0
Utility Man
2017-10-19
Respirable dust, <.1mg
0
Front-end Loader Operator
2017-10-19
Respirable dust, <.1mg
0
Truck Driver
2017-10-19
Nuisance dust, respirable, <1% Qtz
0.61
10
0.06
Crusher Oper/Worker
2017-10-19
Respirable dust, <.1mg
0
Front-end Loader Operator
2017-10-19
Respirable dust, <.1mg
0
Front-end Loader Operator
2016-11-30
Respirable dust, <.1mg
0
Supervisor, Co. Official
2016-11-30
Respirable dust, <.1mg
0
Truck Driver
2016-11-30
Respirable dust, <.1mg
0
Truck Driver
2016-11-30
Respirable dust, <.1mg
0
Front-end Loader Operator
2016-11-30
Respirable dust, <.1mg
0
Front-end Loader Operator
2016-11-30
Unlisted Particulate, respirable, <1% Qtz
0.58
Crusher Oper/Worker
2016-11-30
Respirable dust, <.1mg
0
Supervisor, Co. Official
2016-11-30
Respirable dust, <.1mg
0
Front-end Loader Operator
2016-09-28
Respirable dust, <.1mg
0
Front-end Loader Operator
2013-09-04
Respirable dust, <.1mg
0
Backhoe Operator
2013-09-04
Quartz, respirable, >1% Qtz
0.14
1.59
0.09
Truck Driver
2013-09-04
Respirable dust, <.1mg
0
Front-end Loader Operator
2013-09-04
Respirable dust, <.1mg
0
Truck Driver
2013-09-04
Respirable dust, <.1mg
0
Truck Driver
2011-10-12
Quartz, respirable, >1% Qtz
0.34
2.43
0.14
Bulldozer Operator
2011-10-12
Nuisance dust, respirable, <1% Qtz
0.12
10
0.01
Utility Man
2011-10-12
Nuisance dust, respirable, <1% Qtz
0.12
10
0.01
Truck Driver
2011-10-12
Respirable dust, <.1mg
0
Truck Driver
2011-10-12
Quartz, respirable, >1% Qtz
0.21
1.41
0.15
Front-end Loader Operator
2009-12-08
Respirable dust, <.1mg
0
Front-end Loader Operator
2009-12-08
Respirable dust, <.1mg
0
Utility Man
2005-08-24
Nuisance dust, respirable, <1% Qtz
0.91
10
0.09
Mechanic
2005-08-24
Nuisance dust, respirable, <1% Qtz
0.42
10
0.04
Cleanup Man
2005-08-24
Nuisance dust, respirable, <1% Qtz
1.23
10
0.12
Crusher Oper/Worker
2003-04-23
Respirable dust, <.1mg
0
Truck Driver
2003-04-23
Quartz, respirable, >1% Qtz
0.29
2.21
0.13
Mechanic
2003-04-23
Nuisance dust, respirable, <1% Qtz
0.74
10
0.07
Crusher Oper/Worker
2003-04-23
Respirable dust, <.1mg
0
Front-end Loader Operator
2003-04-23
Respirable dust, <.1mg
0
Truck Driver
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.
Black 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
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.
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year
Employees
2026
14
2025
14
2024
15
2023
15
2022
15
2021
15
2020
12
2019
10
2018
8
2017
8
2016
8
2015
7
2014
5
2013
10
2012
9
2011
13
2010
11
2009
13
2008
15
2007
16
2006
18
2005
15
2004
15
2003
21
2002
23
2001
24
2000
24
Source: MSHA quarterly employment and production, updated weekly.
Black Rock Quarry sits in Lawrence County, Arkansas, where the Census mining category is 0.5% 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.
Lawrence County, Arkansas · Population 16,265
0.5%
Mining share of county employment
$44,164
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
6,647
0
0
0.0
2026 Q1
6,500
0
0
0.0
2025 Q4
8,426
1
0
118.7
2025 Q3
8,352
1
0
119.7
2025 Q2
6,641
0
0
0.0
2025 Q1
7,145
0
0
0.0
2024 Q4
7,448
1
0
134.3
2024 Q3
10,530
0
0
0.0
Show 98 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2024 Q2
9,433
0
0
0.0
2024 Q1
7,829
0
0
0.0
2023 Q4
7,750
1
0
129.0
2023 Q3
9,884
0
0
0.0
2023 Q2
9,010
1
0
111.0
2023 Q1
8,278
1
0
120.8
2022 Q4
7,553
0
0
0.0
2022 Q3
10,398
0
0
0.0
2022 Q2
10,126
0
0
0.0
2022 Q1
9,141
0
0
0.0
2021 Q4
8,958
0
0
0.0
2021 Q3
10,214
0
0
0.0
2021 Q2
9,424
1
0
106.1
2021 Q1
7,655
0
0
0.0
2020 Q4
7,461
1
0
134.0
2020 Q3
9,509
0
0
0.0
2020 Q2
6,862
0
0
0.0
2020 Q1
6,623
0
0
0.0
2019 Q4
6,619
0
0
0.0
2019 Q3
6,448
1
0
155.1
2019 Q2
6,033
0
0
0.0
2019 Q1
4,672
0
0
0.0
2018 Q4
4,418
0
0
0.0
2018 Q3
5,094
0
0
0.0
2018 Q2
5,059
0
0
0.0
2018 Q1
4,386
0
0
0.0
2017 Q4
3,851
0
0
0.0
2017 Q3
4,982
0
0
0.0
2017 Q2
5,055
0
0
0.0
2017 Q1
3,787
0
0
0.0
2016 Q4
4,060
0
0
0.0
2016 Q3
4,553
0
0
0.0
2016 Q2
4,451
0
0
0.0
2016 Q1
4,063
0
0
0.0
2015 Q4
3,835
0
0
0.0
2015 Q3
3,938
0
0
0.0
2015 Q2
3,731
0
0
0.0
2015 Q1
3,405
2
0
587.4
2014 Q4
3,492
0
0
0.0
2014 Q3
3,248
0
0
0.0
2014 Q2
1,768
1
0
565.6
2014 Q1
1,759
2
0
1137.0
2013 Q4
2,479
0
0
0.0
2013 Q3
3,846
0
0
0.0
2013 Q2
4,470
0
0
0.0
2013 Q1
4,234
2
0
472.4
2012 Q4
3,312
0
0
0.0
2012 Q3
4,491
0
0
0.0
2012 Q2
3,895
0
0
0.0
2012 Q1
4,233
0
0
0.0
2011 Q4
4,151
3
0
722.7
2011 Q3
6,461
2
0
309.5
2011 Q2
7,152
0
0
0.0
2011 Q1
7,125
2
1
280.7
2010 Q4
8,603
0
0
0.0
2010 Q3
8,420
3
2
356.3
2010 Q2
6,146
0
0
0.0
2010 Q1
6,197
0
0
0.0
2009 Q4
4,301
5
1
1162.5
2009 Q3
6,590
0
0
0.0
2009 Q2
7,284
0
0
0.0
2009 Q1
2,985
0
0
0.0
2008 Q4
6,425
4
1
622.6
2008 Q3
8,410
0
0
0.0
2008 Q2
9,165
0
0
0.0
2008 Q1
10,148
0
0
0.0
2007 Q4
10,657
1
0
93.8
2007 Q3
9,539
2
0
209.7
2007 Q2
9,355
0
0
0.0
2007 Q1
11,864
0
0
0.0
2006 Q4
11,317
0
0
0.0
2006 Q3
12,886
0
0
0.0
2006 Q2
12,052
3
0
248.9
2006 Q1
13,134
0
0
0.0
2005 Q4
9,957
0
0
0.0
2005 Q3
11,270
3
0
266.2
2005 Q2
9,063
0
0
0.0
2005 Q1
8,890
2
0
225.0
2004 Q4
7,767
0
0
0.0
2004 Q3
10,246
0
0
0.0
2004 Q2
9,252
2
0
216.2
2004 Q1
8,256
1
0
121.1
2003 Q4
7,985
0
0
0.0
2003 Q3
9,144
0
0
0.0
2003 Q2
8,893
4
1
449.8
2003 Q1
10,487
0
0
0.0
2002 Q4
11,162
0
0
0.0
2002 Q3
13,529
0
0
0.0
2002 Q2
14,715
2
0
135.9
2002 Q1
10,974
0
0
0.0
2001 Q4
10,659
7
1
656.7
2001 Q3
12,892
0
0
0.0
2001 Q2
11,632
2
1
171.9
2001 Q1
10,327
0
0
0.0
2000 Q4
9,103
0
0
0.0
2000 Q3
11,368
7
2
615.8
2000 Q2
12,400
0
0
0.0
2000 Q1
10,827
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
18 on file
2007 · 1 incident
August 15, 2007AR · Metal/Non-Metalhaul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driverHANDLING OF MATERIALS
Employee cut his right arm when he jerked a pneumatic grease pump (app. 30 lbs.) out of an empty grease barrel. The pump apparently hung on something in the barrel. When the pump came loose, it hit the employee in the right arm, causing a laceration that required 4 stitches.
2006 · 1 incident
August 3, 2006AR · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techFALLING/SLIDING/ROLLING MATERIALS
Employee was shoveling under tail wheel located beneath primary dump hopper when a rock weighing app. 10-15 pounds fell from the side of the dump hopper and hit him in the head. No trucks were dumping at the time of the incident. The rock penetrated through his hard hat and caused a laceration which required 4 stitches.
2004 · 1 incident
June 1, 2004AR · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanSTEPPING OR KNEELING ON OBJECT
Employee was walking to tail pulley; stepped on a loose rock and twisted/sprain left ankle. Initial date of injury was 6/1/04 and was seen by company physician on that date. On 6/8/04 physician decided to place employee in an ankle splint.
EE WAS MANUALLY MOVING A LARGE ROCK OUT OF THE HAUL ROAD. HE PULLED A BACK MUSCLE IN THE PROCESS. HE DID NOT SEEK MEDICAL TREATMENT UNTIL 12-4-00 WHEN HE WAS PLACED ON LIGHT DUTY.
April 20, 2000AR · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techHANDLING OF MATERIALS
WAS STANDING ON HYD TANK CHANGING A HOSE ON THE MAST WRENCH CAME OFF FITTING VICTIM LOST BALANCE AND FELL TO GROUND LANDING ON ARM AND FRACTURING IT. WAS NOT USING FALL PROTECTION.
1997 · 2 incidents
August 19, 1997AR · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanPOWERED HAULAGE
EMP WAS ON FRAMEWORK HELPING FEED BELT AROUND CONVEYOR FRAME AND HEAD PULLEY. BELT WAS ATTACHED TO A ROPE BY LACINGS AND CHEIN. THIS ROPE WAS BEING PULLED BY BOBCAT. CHAIN CONNECTING THE ROPE AND BELT BROKE RESULTING IN CHAIN SNAPPING BACK ONTO EMP.
May 3, 1997AR · Metal/Non-Metalwelder (shop)MACHINERY
VICTIM WAS STRADDLING BLAST HOLE LAYING A PIECE OF METAL ON THE GROUND. HE LOST HIS BALANCE AND FELL ON HIS REAR END. AS HE WAS FALLING, HE FELT SOMETHING GIVE IN HIS HAMSTRING.
1995 · 1 incident
February 27, 1995AR · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanSLIP OR FALL OF PERSON