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: 241 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Adams Quarry has $9K 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.
$9K
proposed penalties
$9K
current assessed
$9K
paid to date
$0
outstanding
28 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2025-03-17.
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: 2025-05-13
7
samples
0
limit-tested
Most sampled contaminants
Respirable dust, <.1mg4
Unlisted Particulate, respirable, <1% Qtz2
Quartz, respirable, >1% Qtz1
Show the individual readings (7)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2025-05-13
Respirable dust, <.1mg
0
Stone Polisher/Cutter
2025-05-13
Respirable dust, <.1mg
0
Front-end Loader Operator
2025-05-13
Quartz, respirable, >1% Qtz
0.5
Bulldozer Operator
2025-05-13
Respirable dust, <.1mg
0
Stone Polisher/Cutter
2025-05-13
Respirable dust, <.1mg
0
Stone Polisher/Cutter
2021-03-29
Unlisted Particulate, respirable, <1% Qtz
0.13
Laborer, Bullgang
2021-03-29
Unlisted Particulate, respirable, <1% Qtz
0.13
Laborer, Bullgang
Area samples (mill and shop air)
Last sampled: 2025-05-13
1
samples
Show the individual readings (2)
Date
Contaminant
Concentration
Limit
Conc / limit
Area sampled
2025-05-13
ANALYZED BULK DUST MASS
0
SF ACTIVE MINING
2025-05-13
QUARTZ (BULK DUST)
0
SF ACTIVE MINING
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.
Adams Quarry recorded 10.20 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.
10.20
total case rate
0.00
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 Indiana, metal and nonmetal mining averaged 1.61 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 *
10.20
0.00
0.000
2024 *
0.00
0.00
0.000
2023 *
5.62
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
* 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
19
2025
18
2024
10
2023
17
2022
14
2021
13
2020
15
2019
18
2018
8
2017
4
Source: MSHA quarterly employment and production, updated weekly.
Adams Quarry sits in Monroe County, Indiana, 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.
Monroe County, Indiana · Population 139,822
0.1%
Mining share of county employment
$63,372
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
12,321
0
0
0.0
2026 Q1
9,481
0
0
0.0
2025 Q4
10,083
0
0
0.0
2025 Q3
11,246
0
0
0.0
2025 Q2
11,146
0
0
0.0
2025 Q1
6,739
1
0
148.4
2024 Q4
4,300
0
0
0.0
2024 Q3
6,607
6
5
908.1
Show 27 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2024 Q2
5,509
0
0
0.0
2024 Q1
4,192
0
0
0.0
2023 Q4
4,855
0
0
0.0
2023 Q3
7,724
1
0
129.5
2023 Q2
9,460
0
0
0.0
2023 Q1
13,557
6
1
442.6
2022 Q4
8,121
0
0
0.0
2022 Q3
7,621
0
0
0.0
2022 Q2
8,519
2
1
234.8
2022 Q1
5,457
0
0
0.0
2021 Q4
4,692
5
1
1065.6
2021 Q3
5,814
0
0
0.0
2021 Q2
9,158
0
0
0.0
2021 Q1
6,709
2
0
298.1
2020 Q4
7,174
0
0
0.0
2020 Q3
8,289
0
0
0.0
2020 Q2
8,467
0
0
0.0
2020 Q1
6,802
0
0
0.0
2019 Q4
9,656
2
0
207.1
2019 Q3
13,080
0
0
0.0
2019 Q2
10,066
0
0
0.0
2019 Q1
4,935
1
0
202.6
2018 Q4
54
0
0
0.0
2018 Q3
4,667
0
0
0.0
2018 Q2
4,605
1
0
217.2
2018 Q1
2,329
0
0
0.0
2017 Q4
1,716
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
3 on file
2025 · 2 incidents
November 18, 2025IN · Metal/Non-Metalstone finishing and sizing personnel, stone/rock cut/polish/saw operator, splitter, cutter, trimmerOTHER
IN Limestone Co · Bodily reaction, (Not Elsewhere Classified)
Excavator operator on stripping crew was stepping down out of the excavator when they felt a pop in left calf area of leg. The employee let their supervisor know and continued to work the remainder of the shift. The injury increased in pain and the employee was sent to the occupational clinic.
June 2, 2025IN · Metal/Non-Metalstone finishing and sizing personnel, stone/rock cut/polish/saw operator, splitter, cutter, trimmerHANDLING OF MATERIALS
IN Limestone Co · Caught in, under or between a moving and a stationary object
Employee was helping put a saw bar back on the saw as EE was adjusting the bolts to fit back in the bolt hole, a team member moved the bar by hand resulting in the bar shifting positions and pinching the employees hand in a pinch point. The employees palm and thumb were caught between the saw and bar briefly.
2023 · 1 incident
May 5, 2023IN · Metal/Non-Metalbulldozer operator, universal operator, heavy equipment operator, operating engineerDISORDERS (REPEATED TRAUMA)