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: 634 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Anstine Quarry has $38K 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.
$38K
proposed penalties
$31K
current assessed
$31K
paid to date
$0
outstanding
93 assessments are final orders; 3 contested dockets.
Of $14K in penalties contested before the Commission, $6K was upheld in final decisions.
As of the most recent assessment on 2026-04-15.
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.
5citations taken to the federal commission · 5% of citations on record
Settled
3 · 60%
Vacated or withdrawn
2 · 40%
75%
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 Vacated and withdrawn citations, and settlements that removed the designation, count against.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%
54%
Penalty reduction in decided contests
$14K proposed, $6K 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 A dismissed or defaulted contest leaves the citation standing as issued; a vacated or withdrawn citation is removed from the violation record.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 2023-05-22.
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: 2025-07-09
6%
of limit-tested samples over the exposure limit
19
samples
16
limit-tested
Most sampled contaminants
Quartz, respirable, >1% Qtz161 over
Respirable dust, <.1mg2
Nuisance dust, respirable, <1% Qtz1
Show the individual readings (19)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2018-07-17
Quartz, respirable, >1% Qtz
0.92
0.67
1.37
Truck Driver
2025-07-09
Quartz, respirable, >1% Qtz
0.7
2.08
0.34
Truck Driver
2025-07-09
Respirable dust, <.1mg
0
Front-end Loader Operator
2025-07-09
Quartz, respirable, >1% Qtz
0.31
0.81
0.38
Truck Driver
2025-07-09
Quartz, respirable, >1% Qtz
0.17
1.06
0.16
Truck Driver
2025-07-09
Quartz, respirable, >1% Qtz
0.6
0.61
0.98
Crusher Oper/Worker
2023-11-08
Quartz, respirable, >1% Qtz
0.6
1.28
0.47
Truck Driver
2023-11-08
Quartz, respirable, >1% Qtz
0.67
1.89
0.35
Truck Driver
2023-11-08
Quartz, respirable, >1% Qtz
0.28
0.89
0.31
Truck Driver
2023-11-08
Respirable dust, <.1mg
0
Rotary Bucket Ex. Operator
2023-11-08
Quartz, respirable, >1% Qtz
0.45
0.69
0.65
Crusher Oper/Worker
2018-09-26
Quartz, respirable, >1% Qtz
0.15
Truck Driver
2018-07-17
Quartz, respirable, >1% Qtz
0.39
0.57
0.68
Front-end Loader Operator
2018-07-17
Quartz, respirable, >1% Qtz
0.49
0.81
0.60
Crusher Oper/Worker
2018-07-17
Quartz, respirable, >1% Qtz
0.51
0.66
0.77
Truck Driver
2015-09-29
Quartz, respirable, >1% Qtz
0.13
0.53
0.25
Front-end Loader Operator
2015-09-29
Quartz, respirable, >1% Qtz
0.56
0.85
0.66
Truck Driver
2015-09-29
Quartz, respirable, >1% Qtz
0.52
0.66
0.79
Bulldozer Operator
2015-09-29
Nuisance dust, respirable, <1% Qtz
0.18
10
0.02
Bulldozer 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.
Anstine 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
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 Missouri, metal and nonmetal mining averaged 2.13 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
2020 *
0.00
0.00
0.000
2019 *
0.00
0.00
0.000
2018 *
9.12
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
11
2025
10
2024
10
2023
9
2022
9
2021
10
2020
10
2019
9
2018
10
2017
9
2016
8
2015
7
2014
8
2013
7
2012
4
Source: MSHA quarterly employment and production, updated weekly.
Anstine Quarry sits in Johnson County, Missouri, where the Census mining category is 0.1% 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.
Johnson County, Missouri · Population 54,331
0.1%
Mining share of county employment
$67,123
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
Employee was hauling overburden to the spoil pile in a haul truck and hit a pothole which jarred their back.
2018 · 1 incident
February 23, 2018MO · Metal/Non-Metalhaul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driverSLIP OR FALL OF PERSON
E and S Rock · Over-exertion (Not Elsewhere Classified)
EE jumped off the tailgate of the powder truck and strained EE's back
2017 · 1 incident
May 25, 2017MO · Metal/Non-Metalhaul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driverHANDLING OF MATERIALS
E and S Rock · Caught in, under or between a moving and a stationary object
The employee was in the process of put a spring back in a R25 Euclid and the spring slip and pinched finger between the steering cylinder and spring
2016 · 1 incident
June 13, 2016MO · Metal/Non-Metalbulldozer operator, universal operator, heavy equipment operator, operating engineerHANDLING OF MATERIALS
E and S Rock · Struck by... (Not Elsewhere Classified)
Changing blow bars and liners in Eagle crusher. The hood had been opened and pinned in order to work on machine. South pin must have vibrated out leaving all the pressure on the North pin. The weight from the hood began to bend the pin allowing the hood to close on EE. EE elected to roll the rotor to avoid the hood.