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: 560 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Imminent-danger orders
ⓘA Section 107(a) order removes miners from an area when an inspector finds an imminent danger. Each order is lifted once the condition is corrected, so this counts orders issued, not orders now in effect.
2
Section 107(a) orders
Most recent order: 2023-07-18.
On record since 2019.
Source: MSHA imminent-danger order records, updated weekly.
Mascharka Mine has $36K in proposed MSHA penalties and $549 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.
$36K
proposed penalties
$34K
current assessed
$33K
paid to date
$549
outstanding
88 assessments are final orders; 1 contested dockets.
Of $4K in penalties contested before the Commission, $1K was upheld in final decisions.
As of the most recent assessment on 2026-05-20.
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%
100%
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 Vacated and withdrawn citations, and settlements that removed the designation, count against.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%
70%
Penalty reduction in decided contests
$4K proposed, $1K 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 2024-05-23.
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: 2026-05-21
0%
of limit-tested samples over the exposure limit
21
samples
8
limit-tested
Most sampled contaminants
Respirable dust, <.1mg8
Quartz, respirable, >1% Qtz7
Nuisance dust, total, <1% Qtz4
Nuisance dust, respirable, <1% Qtz1
Show the individual readings (21)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2026-05-21
Quartz, respirable, >1% Qtz
0.17
0.76
0.22
Truck Driver
2026-05-21
Respirable dust, <.1mg
0
Front-end Loader Operator
2026-05-21
Quartz, respirable, >1% Qtz
0.28
1.22
0.23
Truck Driver
2025-02-19
Unlisted Particulate, respirable, <1% Qtz
0.63
Truck Driver
2025-02-19
Quartz, respirable, >1% Qtz
0.15
Laborer, Bullgang
2025-02-19
Respirable dust, <.1mg
0
Front-end Loader Operator
2024-03-05
Nuisance dust, respirable, <1% Qtz
0.22
10
0.02
Truck Driver
2024-03-05
Quartz, respirable, >1% Qtz
0.32
1.02
0.31
Laborer, Bullgang
2024-03-05
Quartz, respirable, >1% Qtz
0.37
Front-end Loader Operator
2022-11-29
Respirable dust, <.1mg
0
Front-end Loader Operator
2021-12-09
Respirable dust, <.1mg
0
Front-end Loader Operator
2021-12-09
Respirable dust, <.1mg
0
Truck Driver
2021-12-09
Quartz, respirable, >1% Qtz
0.33
Laborer, Bullgang
2019-11-06
Respirable dust, <.1mg
0
Truck Driver
2019-11-06
Respirable dust, <.1mg
0
Bulldozer Operator
2019-11-06
Quartz, respirable, >1% Qtz
0.16
Mechanic
2019-09-12
Nuisance dust, total, <1% Qtz
0.86
10
0.09
Truck Driver
2019-09-12
Respirable dust, <.1mg
0
Bulldozer Operator
2019-09-12
Nuisance dust, total, <1% Qtz
0.22
10
0.02
Backhoe Operator
2019-09-12
Nuisance dust, total, <1% Qtz
0.24
10
0.02
Front-end Loader Operator
2019-09-12
Nuisance dust, total, <1% Qtz
0.25
10
0.03
Crusher Oper/Worker
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.
Mascharka Mine 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 Pennsylvania, metal and nonmetal mining averaged 2.07 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
2023 *
0.00
0.00
0.000
2022 *
0.00
0.00
0.000
2021 *
0.00
0.00
0.000
2020 *
7.99
7.99
0.000
2019 *
12.41
6.21
0.000
2018 *
6.45
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
12
2024
10
2023
12
2022
13
2021
9
2020
11
2019
12
2018
12
2017
8
2016
14
2015
10
Source: MSHA quarterly employment and production, updated weekly.
Mascharka Mine sits in Clarion County, Pennsylvania, where the Census mining category is 1.2% 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.
Clarion County, Pennsylvania · Population 37,297
1.2%
Mining share of county employment
$60,668
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
5,970
2
0
335.0
2026 Q1
5,153
0
0
0.0
2025 Q4
5,437
2
2
367.8
2025 Q3
7,814
0
0
0.0
2025 Q2
5,810
3
0
516.4
2025 Q1
5,750
5
2
869.6
2024 Q4
4,298
0
0
0.0
2024 Q3
5,941
0
0
0.0
Show 36 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2024 Q2
5,302
7
2
1320.3
2024 Q1
5,961
5
1
838.8
2023 Q4
5,154
0
0
0.0
2023 Q3
8,605
7
2
813.5
2023 Q2
7,360
0
0
0.0
2023 Q1
6,127
0
0
0.0
2022 Q4
6,393
4
1
625.7
2022 Q3
7,436
0
0
0.0
2022 Q2
8,228
6
2
729.2
2022 Q1
3,222
0
0
0.0
2021 Q4
7,217
2
0
277.1
2021 Q3
5,093
0
0
0.0
2021 Q2
5,729
0
0
0.0
2021 Q1
5,368
0
0
0.0
2020 Q4
5,359
3
0
559.8
2020 Q3
4,412
0
0
0.0
2020 Q2
8,062
4
1
496.2
2020 Q1
7,189
0
0
0.0
2019 Q4
8,199
3
0
365.9
2019 Q3
7,574
5
0
660.2
2019 Q2
8,560
4
0
467.3
2019 Q1
7,899
15
6
1899.0
2018 Q4
8,607
0
0
0.0
2018 Q3
7,472
0
0
0.0
2018 Q2
9,126
5
2
547.9
2018 Q1
5,788
0
0
0.0
2017 Q4
5,933
0
0
0.0
2017 Q3
5,072
0
0
0.0
2017 Q2
5,146
0
0
0.0
2017 Q1
3,920
3
3
765.3
2016 Q4
3,529
0
0
0.0
2016 Q3
4,672
0
0
0.0
2016 Q2
7,431
0
0
0.0
2016 Q1
872
5
1
5733.9
2015 Q4
5,986
0
0
0.0
2015 Q3
1,795
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
7 on file
2020 · 1 incident
January 22, 2020PA · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanHANDTOOLS (NONPOWERED)
Employee was cutting conveyor belting and utility knife slipped and cut EE's left forearm. Required 2 stitches. Employee returned to full duty after treatment and finished shift.
July 17, 2019PA · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanHANDTOOLS (NONPOWERED)
Employee was in the process of changing a head pulley on the return conveyor belt. Despite having a sling around the shaft, when the mounting bolts were removed the head pulley shifted and employee's left hand was pinched between the pulley and framework. Employee left index finger suffered a laceration requiring 4 stitches.
2017 · 3 incidents
December 13, 2017PA · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanSLIP OR FALL OF PERSON
Employee lost footing in snow and landed on right shoulder. Initial diagnosis is a partially torn Rotator cuff
November 29, 2017PA · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techSLIP OR FALL OF PERSON
Employee was getting into service truck and the step which is the battery box lid came loose and caused the employee to slip. Slip resulted in a sprained knee.
June 12, 2017PA · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanHANDLING OF MATERIALS
Employee was working to clear jam in primary crusher. Employee was standing with feet at different levels and lower foot slipped causing the left knee to strike a metal bar. Employee finished the shift but knee later swelled up and ee was unable to work on 6-13-17. Employee's PCP set up appointment with Orthopedic doctor on 6-20-17.
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