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: 774 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
BRONTE PLANT has $14K in proposed MSHA penalties and $0 outstanding across 0 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.
$14K
proposed penalties
$14K
current assessed
$14K
paid to date
$0
outstanding
93 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-04-16.
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.
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: 2013-10-30, 12 years ago
0%
of limit-tested samples over the exposure limit
7
samples
3
limit-tested
Most sampled contaminants
Respirable dust, <.1mg4
Quartz, respirable, >1% Qtz3
Show the individual readings (7)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2013-10-30
Respirable dust, <.1mg
0
Rotary Bucket Ex. Operator
2013-10-30
Respirable dust, <.1mg
0
Front-end Loader Operator
2003-12-09
Respirable dust, <.1mg
0
Shovel Operator
2003-12-09
Quartz, respirable, >1% Qtz
0.2
0.78
0.26
Truck Driver
2003-12-09
Respirable dust, <.1mg
0
Washer Operator
2001-12-12
Quartz, respirable, >1% Qtz
0.14
0.77
0.18
Backhoe Operator
2001-12-12
Quartz, respirable, >1% Qtz
0.23
1.94
0.12
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.
BRONTE PLANT recorded 5.85 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.
5.85
total case rate
5.85
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.
In Texas, metal and nonmetal mining averaged 1.17 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 *
5.85
5.85
0.000
2024 *
0.00
0.00
0.000
2023 *
0.00
0.00
0.000
2022 *
6.17
0.00
0.000
2021 *
7.18
0.00
0.000
2020 *
0.00
0.00
0.000
2019 *
0.00
0.00
0.000
2018 *
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
16
2025
15
2024
11
2023
12
2022
14
2021
13
2020
12
2019
12
2018
11
2017
11
2016
12
2015
13
2014
12
2013
11
2012
10
2011
11
2010
10
2009
11
2008
11
2007
8
2006
6
2005
5
2004
5
2003
5
2002
4
2001
3
2000
3
Source: MSHA quarterly employment and production, updated weekly.
BRONTE PLANT sits in Coke County, Texas, where the Census mining category is 1.3% 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.
Coke County, Texas · Population 3,315
1.3%
Mining share of county employment
$46,431
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
10,949
4
1
365.3
2026 Q1
10,787
0
0
0.0
2025 Q4
10,899
4
0
367.0
2025 Q3
9,994
1
0
100.1
2025 Q2
9,123
0
0
0.0
2025 Q1
4,193
1
0
238.5
2024 Q4
7,243
0
0
0.0
2024 Q3
7,131
1
0
140.2
Show 95 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2024 Q2
6,933
0
0
0.0
2024 Q1
7,465
0
0
0.0
2023 Q4
6,836
0
0
0.0
2023 Q3
7,154
1
0
139.8
2023 Q2
7,565
1
0
132.2
2023 Q1
7,434
0
0
0.0
2022 Q4
8,086
0
0
0.0
2022 Q3
8,066
2
2
248.0
2022 Q2
8,552
0
0
0.0
2022 Q1
7,695
0
0
0.0
2021 Q4
6,184
1
0
161.7
2021 Q3
7,685
2
1
260.2
2021 Q2
6,994
0
0
0.0
2021 Q1
7,005
1
0
142.8
2020 Q4
6,735
0
0
0.0
2020 Q3
7,288
1
1
137.2
2020 Q2
6,728
0
0
0.0
2020 Q1
6,810
2
0
293.7
2019 Q4
5,959
0
0
0.0
2019 Q3
6,218
1
0
160.8
2019 Q2
4,426
0
0
0.0
2019 Q1
7,179
0
0
0.0
2018 Q4
6,384
4
0
626.6
2018 Q3
6,106
0
0
0.0
2018 Q2
7,133
1
0
140.2
2018 Q1
7,181
0
0
0.0
2017 Q4
5,714
0
0
0.0
2017 Q3
6,424
0
0
0.0
2017 Q2
6,648
0
0
0.0
2017 Q1
6,733
5
1
742.6
2016 Q4
6,494
0
0
0.0
2016 Q3
7,340
1
0
136.2
2016 Q2
6,744
0
0
0.0
2016 Q1
7,010
0
0
0.0
2015 Q4
6,529
1
0
153.2
2015 Q3
7,682
0
0
0.0
2015 Q2
7,877
1
0
127.0
2015 Q1
7,159
0
0
0.0
2014 Q4
7,108
2
1
281.4
2014 Q3
8,199
3
2
365.9
2014 Q2
6,735
0
0
0.0
2014 Q1
6,624
0
0
0.0
2013 Q4
5,641
1
1
177.3
2013 Q3
6,750
0
0
0.0
2013 Q2
6,821
4
0
586.4
2013 Q1
6,021
2
1
332.2
2012 Q4
3,892
0
0
0.0
2012 Q3
6,308
5
3
792.6
2012 Q2
4,723
0
0
0.0
2012 Q1
5,044
0
0
0.0
2011 Q4
4,705
1
0
212.5
2011 Q3
7,127
1
0
140.3
2011 Q2
5,268
0
0
0.0
2011 Q1
4,690
0
0
0.0
2010 Q4
4,529
1
0
220.8
2010 Q3
4,822
0
0
0.0
2010 Q2
4,786
1
0
208.9
2010 Q1
5,221
3
1
574.6
2009 Q4
5,525
0
0
0.0
2009 Q3
6,540
6
0
917.4
2009 Q2
5,396
0
0
0.0
2009 Q1
5,446
0
0
0.0
2008 Q4
6,732
0
0
0.0
2008 Q3
7,227
0
0
0.0
2008 Q2
7,534
2
0
265.5
2008 Q1
7,390
6
0
811.9
2007 Q4
9,914
0
0
0.0
2007 Q3
5,270
0
0
0.0
2007 Q2
6,905
0
0
0.0
2007 Q1
4,284
0
0
0.0
2006 Q4
4,061
0
0
0.0
2006 Q3
4,284
0
0
0.0
2006 Q2
4,097
0
0
0.0
2006 Q1
3,139
0
0
0.0
2005 Q4
3,092
0
0
0.0
2005 Q3
3,042
0
0
0.0
2005 Q2
3,264
0
0
0.0
2005 Q1
3,090
0
0
0.0
2004 Q4
3,157
0
0
0.0
2004 Q3
3,448
2
0
580.0
2004 Q2
3,481
0
0
0.0
2004 Q1
3,444
0
0
0.0
2003 Q4
3,307
1
0
302.4
2003 Q3
3,439
2
0
581.6
2003 Q2
3,680
4
0
1087.0
2003 Q1
3,361
0
0
0.0
2002 Q4
3,199
0
0
0.0
2002 Q3
3,184
0
0
0.0
2002 Q2
3,425
3
0
875.9
2002 Q1
3,363
0
0
0.0
2001 Q4
2,988
1
0
334.7
2001 Q3
2,302
0
0
0.0
2001 Q2
2,337
0
0
0.0
2001 Q1
1,195
2
0
1673.6
2000 Q4
1,233
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
8 on file
2025 · 1 incident
May 14, 2025TX · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techHANDLING OF MATERIALS
Two employees were installing a new bearing on a shaft. Employee #2 was holding shaft up with a pry bar while Employee #1 was installing the bearing. Employee #2's pry bar slipped forward, pinching Employee #1's left ring finger between the pry bar and the bearing.
2021 · 1 incident
August 10, 2021TX · Metal/Non-Metalbulldozer operator, universal operator, heavy equipment operator, operating engineerSLIP OR FALL OF PERSON
September 30, 2014TX · Metal/Non-Metalhaul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driverSLIP OR FALL OF PERSON
The miner was dismounting a 400D John Deere Haul truck, when he caught his left foot on the top step. He did have ahold of the hand rail and was going down backward. He lost his footing and fell 6 feet to the ground landing on his back. He hit his right arm on a hydraulic cylinder, breaking his arm just above the wrist. There were no other injuries.
2013 · 1 incident
May 24, 2013TX · Metal/Non-Metalfront-end loader, scraper-loader operator, pan operator, payloader, scraper rig operatorPOWERED HAULAGE
On manlift to change roller on #2 belt - was raising basket when struck conveyor belt injuring forehead, bridge of nose & eyelid - nose & eyelid required stitches.
2008 · 1 incident
January 3, 2008TX · Metal/Non-Metalhaul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driverHANDLING OF MATERIALS
Employee was cleaning out material that was stuck in the hopper grizzley. The hopper oveflowed, dumping material into the grizzley. The material knocked off employee's hard hat-additional material caused a head laceration.
Truck driver neede 1000 # sand. He was instructed to exit scales and wait for loader to bring the sand. EE drove to the sand load out area instead. He then went to the sand rile, did a U-turn and pulled behind the loader as it was backing up. The loader hit the right side and damage was done to the truck, loader not damaged. No mining imparment as result of accident.
2003 · 1 incident
April 7, 2003TX · Metal/Non-Metalfront-end loader, scraper-loader operator, pan operator, payloader, scraper rig operatorHANDLING OF MATERIALS
CHECKED OUT PLANT, WALKED OVER TO SCREEN ROOM, CALLED OFFICE TO SAY NOT SCREENS, CLIMBED IN LOADER, SAT DOWN, THEN NOTICED PAIN IN LOWER LEFT HAND SIDE.
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