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: 116 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Plant 42 M has $1K 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.
$1K
proposed penalties
$1K
current assessed
$1K
paid to date
$0
outstanding
8 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2020-07-07.
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: 2025-09-17
2
samples
0
limit-tested
Most sampled contaminants
Respirable dust, <.1mg2
Show the individual readings (2)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2025-09-17
Respirable dust, <.1mg
0
Front-end Loader Operator
2017-09-19
Respirable dust, <.1mg
0
Lab Technician
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.
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year
Employees
2026
1
2025
1
2024
1
2023
1
2022
1
2021
1
2020
1
2019
1
2018
2
2017
2
2016
2
Source: MSHA quarterly employment and production, updated weekly.
Plant 42 M sits in Tippecanoe 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.
Tippecanoe County, Indiana · Population 187,399
0.1%
Mining share of county employment
$58,622
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
105
0
0
0.0
2026 Q1
32
0
0
0.0
2025 Q4
13
0
0
0.0
2025 Q3
42
0
0
0.0
2025 Q2
42
0
0
0.0
2025 Q1
70
0
0
0.0
2024 Q4
28
0
0
0.0
2024 Q3
10
0
0
0.0
Show 29 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2024 Q2
21
0
0
0.0
2024 Q1
4
0
0
0.0
2023 Q4
14
0
0
0.0
2023 Q3
51
0
0
0.0
2023 Q2
82
0
0
0.0
2023 Q1
57
0
0
0.0
2022 Q4
17
0
0
0.0
2022 Q3
93
0
0
0.0
2022 Q2
36
0
0
0.0
2022 Q1
17
0
0
0.0
2021 Q4
62
0
0
0.0
2021 Q3
100
0
0
0.0
2021 Q2
49
0
0
0.0
2021 Q1
9
0
0
0.0
2020 Q4
82
0
0
0.0
2020 Q3
72
4
1
55555.6
2020 Q2
31
0
0
0.0
2020 Q1
7
0
0
0.0
2019 Q4
18
0
0
0.0
2019 Q3
148
0
0
0.0
2019 Q2
103
0
0
0.0
2018 Q3
82
0
0
0.0
2018 Q2
90
1
1
11111.1
2017 Q4
57
0
0
0.0
2017 Q3
131
1
0
7633.6
2017 Q2
375
0
0
0.0
2016 Q4
58
0
0
0.0
2016 Q3
158
0
0
0.0
2016 Q2
218
1
0
4587.2
No fatalities recorded at this mine.
Reportable incidents
1 on file
2017 · 1 incident
May 10, 2017IN · Metal/Non-Metalfront-end loader, scraper-loader operator, pan operator, payloader, scraper rig operatorHANDTOOLS (NONPOWERED)
Changing hydraulic hose, wearing insulated leather gloves. EE braced a crescent wrench against the handrail on the manlift basket. While applying pressure to the pipe wrench on the coupling, the coupling broke loose & EE's LT hand struck the rail of the manlift, cutting pinky fingertip DIP joint on palm side of left hand.