Liberty Materials Moss Hill Plant has $65K in proposed MSHA penalties and $801 outstanding across 1 contested dockets, plus health sampling and the full incident record.
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Fatalities
0
Total incidents
5
Years on record
2011–2025
Latest incident
Jul 2025
Compliance record
MSHA citations since 2009
109
citations
27
significant & substantial
$64,650
proposed penalties
$63,787
paid to date
99% of proposed penalties paid to date, a $863 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.
Rate withheld: 578 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Liberty Materials Moss Hill Plant has $65K in proposed MSHA penalties and $801 outstanding across 1 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.
$65K
proposed penalties
$65K
current assessed
$64K
paid to date
$801
outstanding
102 assessments are final orders; 1 contested dockets.
Of $162 in penalties contested before the Commission, $100 was upheld in final decisions.
As of the most recent assessment on 2026-01-15.
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.
1citations taken to the federal commission · 1% of citations on record
Settled
1 · 100%
0%
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 Vacated and withdrawn citations, and settlements that removed the designation, count against.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 1 decided S&S contests · industry: 79%
38%
Penalty reduction in decided contests
$162 proposed, $100 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 2012-10-15.
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: 2026-08-06
0%
of limit-tested samples over the exposure limit
16
samples
2
limit-tested
Most sampled contaminants
Respirable dust, <.1mg11
Unlisted Particulate, respirable, <1% Qtz3
Nuisance dust, total, <1% Qtz1
Quartz, respirable, >1% Qtz1
Show the individual readings (16)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2026-08-06
Respirable dust, <.1mg
0
Cleanup Man
2026-08-06
Respirable dust, <.1mg
0
Sand Filler (Wet)
2026-08-06
Respirable dust, <.1mg
0
Kiln/Dryer Operator
2026-08-06
Nuisance dust, total, <1% Qtz
0
10
0.00
Dredge/Barge Operator
2026-03-31
Respirable dust, <.1mg
0
Front-end Loader Operator
2026-03-31
Respirable dust, <.1mg
0
Dry Screen Plant Operator
2021-07-27
Respirable dust, <.1mg
0
Front-end Loader Operator
2018-10-30
Quartz, respirable, >1% Qtz
0.15
0.37
0.41
Kiln/Dryer Operator
2018-10-30
Unlisted Particulate, respirable, <1% Qtz
0.29
Screen/Scalper Operator
2014-01-07
Respirable dust, <.1mg
0
Front-end Loader Operator
2014-01-07
Unlisted Particulate, respirable, <1% Qtz
0.23
Dredge/Barge Operator
2014-01-07
Unlisted Particulate, respirable, <1% Qtz
0.17
Mechanic
2014-01-07
Respirable dust, <.1mg
0
Washer Operator
2011-05-24
Respirable dust, <.1mg
0
Utility Man
2011-05-24
Respirable dust, <.1mg
0
Hydrating Plant Operator
2011-05-24
Respirable dust, <.1mg
0
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.
Liberty Materials Moss Hill Plant recorded 4.98 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.
4.98
total case rate
4.98
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 *
4.98
4.98
0.000
2024 *
0.00
0.00
0.000
2023 *
3.43
3.43
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
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
13
2025
13
2024
18
2023
24
2022
21
2021
23
2020
27
2019
25
2018
23
2017
23
2016
19
2015
19
2014
17
2013
14
2012
14
2011
25
2010
13
2009
11
Source: MSHA quarterly employment and production, updated weekly.
Liberty Materials Moss Hill Plant sits in Liberty County, Texas, where the Census mining category is 2.0% 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.
Liberty County, Texas · Population 97,993
2.0%
Mining share of county employment
$64,773
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
8,129
0
0
0.0
2026 Q1
8,705
3
0
344.6
2025 Q4
10,184
0
0
0.0
2025 Q3
9,453
2
0
211.6
2025 Q2
9,920
0
0
0.0
2025 Q1
10,620
3
0
282.5
2024 Q4
9,255
0
0
0.0
2024 Q3
8,499
0
0
0.0
Show 59 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2024 Q2
12,257
7
5
571.1
2024 Q1
13,589
3
0
220.8
2023 Q4
15,367
0
0
0.0
2023 Q3
13,493
3
0
222.3
2023 Q2
14,687
3
0
204.3
2023 Q1
14,751
0
0
0.0
2022 Q4
13,476
0
0
0.0
2022 Q3
16,399
0
0
0.0
2022 Q2
12,551
4
2
318.7
2022 Q1
12,509
5
0
399.7
2021 Q4
13,741
0
0
0.0
2021 Q3
12,563
3
1
238.8
2021 Q2
12,497
0
0
0.0
2021 Q1
11,788
3
0
254.5
2020 Q4
14,465
0
0
0.0
2020 Q3
13,622
0
0
0.0
2020 Q2
12,565
2
0
159.2
2020 Q1
19,362
0
0
0.0
2019 Q4
19,173
0
0
0.0
2019 Q3
18,054
0
0
0.0
2019 Q2
16,117
5
1
310.2
2019 Q1
15,413
0
0
0.0
2018 Q4
13,603
3
1
220.5
2018 Q3
14,486
3
1
207.1
2018 Q2
18,294
0
0
0.0
2018 Q1
16,695
4
0
239.6
2017 Q4
14,515
0
0
0.0
2017 Q3
14,136
0
0
0.0
2017 Q2
16,706
4
0
239.4
2017 Q1
17,388
1
0
57.5
2016 Q4
13,840
0
0
0.0
2016 Q3
12,729
3
1
235.7
2016 Q2
11,023
0
0
0.0
2016 Q1
13,168
2
2
151.9
2015 Q4
15,512
0
0
0.0
2015 Q3
15,886
0
0
0.0
2015 Q2
7,810
8
5
1024.3
2015 Q1
7,887
0
0
0.0
2014 Q4
8,507
7
0
822.9
2014 Q3
6,951
4
1
575.5
2014 Q2
6,983
0
0
0.0
2014 Q1
6,363
1
1
157.2
2013 Q4
5,834
0
0
0.0
2013 Q3
5,974
0
0
0.0
2013 Q2
4,425
1
1
226.0
2013 Q1
4,449
3
0
674.3
2012 Q4
4,773
0
0
0.0
2012 Q3
5,382
1
0
185.8
2012 Q2
6,710
0
0
0.0
2012 Q1
5,471
0
0
0.0
2011 Q4
11,774
2
0
169.9
2011 Q2
8,309
1
0
120.4
2011 Q1
6,909
2
2
289.5
2010 Q4
7,394
0
0
0.0
2010 Q3
5,065
4
0
789.7
2010 Q2
7,205
0
0
0.0
2010 Q1
5,134
0
0
0.0
2009 Q4
5,739
5
3
871.2
2009 Q3
2,007
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
5 on file
2025 · 1 incident
July 25, 2025TX · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanSLIP OR FALL OF PERSON
Employee was weed-eating near the scrap metal storage area. EE tripped and cut EE's right palm on an aluminum truck fender. The laceration was sutured closed.
2023 · 1 incident
June 26, 2023TX · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techSLIP OR FALL OF PERSON
Employee was performing maintenance on a front wheel loader engine bay. EE lost balance and fell ~4ft to the shop floor. EE's right ring finger was dislocated and the Sacrum bone was cracked.
A Customer truck driver pulled over onsite complaining of extreme fatigue, trouble breathing, and feeling sick. 911 was called and EMS arrived on scene to take the driver to the hospital.
2017 · 1 incident
April 10, 2017TX · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanPOWERED HAULAGE
rough waters/wind caused a work boat to slam against the dredge pipe + Pontoon while employees were working on extending the dredgeline. Employee's finger was slammed between the boat edge & pipe. This acutely fractured employee's second distal phalanx of the index finger & caused some small tissue damage.
2011 · 1 incident
February 21, 2011TX · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techSLIP OR FALL OF PERSON
The mechanic was under the bulldozer looking for an oil leak. He then tried to get out from between the blade and the machine. His left foot slipped off the track. He landed on uneven ground breaking his left leg.