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: 826 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Gilliam Quarry has $54K 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.
$54K
proposed penalties
$28K
current assessed
$28K
paid to date
$0
outstanding
102 assessments are final orders; 3 contested dockets.
Of $40K in penalties contested before the Commission, $14K was upheld in final decisions.
As of the most recent assessment on 2026-05-05.
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.
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.
6citations taken to the federal commission · 6% of citations on record
Settled
6 · 100%
25%
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 Vacated and withdrawn citations, and settlements that removed the designation, count against.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 4 decided S&S contests · industry: 79%
65%
Penalty reduction in decided contests
$40K proposed, $14K 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 A dismissed or defaulted contest leaves the citation standing as issued; a vacated or withdrawn citation is removed from the violation record.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 2022-08-24.
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: 2025-06-25
0%
of limit-tested samples over the exposure limit
31
samples
23
limit-tested
Most sampled contaminants
Quartz, respirable, >1% Qtz21
Nuisance dust, respirable, <1% Qtz5
Respirable dust, <.1mg5
Show the individual readings (31)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2025-06-25
Respirable dust, <.1mg
0
Front-end Loader Operator
2020-09-03
Nuisance dust, respirable, <1% Qtz
0.2
10
0.02
Front-end Loader Operator
2020-09-03
Quartz, respirable, >1% Qtz
1.23
2.38
0.52
Mechanic
2018-06-06
Quartz, respirable, >1% Qtz
0.26
Crusher Oper/Worker
2018-06-06
Quartz, respirable, >1% Qtz
0.19
Front-end Loader Operator
2018-06-06
Quartz, respirable, >1% Qtz
0.34
Truck Driver
2016-05-25
Nuisance dust, respirable, <1% Qtz
0.3
10
0.03
Truck Driver
2016-05-25
Respirable dust, <.1mg
0
Front-end Loader Operator
2016-05-25
Quartz, respirable, >1% Qtz
0.38
2.04
0.19
Truck Driver
2012-07-03
Respirable dust, <.1mg
0
Crusher Oper/Worker
2012-07-03
Quartz, respirable, >1% Qtz
0.49
0.89
0.55
Truck Driver
2012-07-03
Quartz, respirable, >1% Qtz
0.35
0.86
0.41
Truck Driver
2012-07-03
Nuisance dust, respirable, <1% Qtz
0.18
10
0.02
Front-end Loader Operator
2010-10-14
Quartz, respirable, >1% Qtz
0.19
1.18
0.16
Crusher Oper/Worker
2010-10-14
Quartz, respirable, >1% Qtz
0.46
1.23
0.37
Truck Driver
2010-10-14
Nuisance dust, respirable, <1% Qtz
0.19
10
0.02
Front-end Loader Operator
2010-10-14
Quartz, respirable, >1% Qtz
0.25
1.08
0.23
Truck Driver
2010-10-14
Respirable dust, <.1mg
0
Front-end Loader Operator
2008-08-12
Quartz, respirable, >1% Qtz
0.38
1.35
0.28
Truck Driver
2008-08-12
Quartz, respirable, >1% Qtz
0.39
1.5
0.26
Truck Driver
2008-08-12
Quartz, respirable, >1% Qtz
0.35
1.81
0.19
Truck Driver
2008-08-12
Quartz, respirable, >1% Qtz
0.43
1.26
0.34
Front-end Loader Operator
2008-08-12
Quartz, respirable, >1% Qtz
1.01
1.46
0.69
Crusher Oper/Worker
2004-03-24
Quartz, respirable, >1% Qtz
0.15
1.35
0.11
Truck Driver
2004-03-24
Quartz, respirable, >1% Qtz
0.21
1.52
0.14
Truck Driver
2004-03-24
Quartz, respirable, >1% Qtz
0.16
1.73
0.09
Crusher Oper/Worker
2003-04-09
Quartz, respirable, >1% Qtz
0.37
1.13
0.33
Truck Driver
2003-04-09
Quartz, respirable, >1% Qtz
0.22
1.72
0.13
Front-end Loader Operator
2003-04-09
Nuisance dust, respirable, <1% Qtz
1.09
10
0.11
Crusher Oper/Worker
2003-04-09
Respirable dust, <.1mg
0
Front-end Loader Operator
2003-04-09
Quartz, respirable, >1% Qtz
0.44
2.22
0.20
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.
Gilliam Quarry recorded 0.00 reportable injury cases per 100 full-time workers in 2011.
Injury rate, 2011
ⓘ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 2.56 and the all-US-mining average was 3.08 cases per 100 workers.
In Missouri, metal and nonmetal mining averaged 2.68 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.
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
3
2025
3
2024
2
2023
7
2022
11
2021
12
2020
13
2019
13
2018
12
2017
12
2016
12
2015
13
2014
12
2013
10
2012
9
2011
9
2010
6
2009
6
2008
7
2007
7
2006
5
2005
6
2004
5
2003
5
2002
6
2001
6
2000
8
Source: MSHA quarterly employment and production, updated weekly.
Gilliam Quarry sits in Saline County, Missouri, 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.
Saline County, Missouri · Population 23,177
0.5%
Mining share of county employment
$56,566
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
INJURED EMPLOYEE WAS PERFORMING DUTIES OF FEEDER MAN TO THE CRUSER; SUB. FOR A REGULAR THAT HAD FAILED TO SHOW UP FOR WORK. EMPLOYEE HAD PERFORMED THIS DUTY MANY TIMES. FEEDER MAN\S DUTY STATI ON IS ON A PLATFORM APPROX. 10 FT HIGH A STEEL LADDER IS USED TO GET OFF FROM PLRFORM. WITH PLANT SHEET DOWN FOR DINNER BREAK EMPLOYEE APPRARENTLY LOST HIS BALANCE WHILE DISMOUNTNG & FELL OFF
Related mines
Other mines operated by Martin Marietta Materials, Inc.