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: 625 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
MARMON has $1K in proposed MSHA penalties and $0 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.
$1K
proposed penalties
$1K
current assessed
$1K
paid to date
$0
outstanding
9 assessments are final orders; 1 contested dockets.
Of $100 in penalties contested before the Commission, $100 was upheld in final decisions.
As of the most recent assessment on 2023-03-01.
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 · 11% of citations on record
Settled
1 · 100%
0%
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 Vacated and withdrawn citations, and settlements that removed the designation, count against.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%
0%
Penalty reduction in decided contests
$100 proposed, $100 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 A dismissed or defaulted contest leaves the citation standing as issued; a vacated or withdrawn citation is removed from the violation record.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 2013-05-14.
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.
MSHA sampling at MARMON shows 100% of 44 respirable coal dust samples met the 1.5 mg/m3 standard.
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.
Respirable coal dust
ⓘRespirable coal dust and silica figures cover coal facilities. Dust compliance is measured against the current 1.5 mg/m3 standard; samples predating the 2014 standard are included, so compliance rates are a coarse historical signal.
Last sampled: 2026-07-07
100%
within 1.5 mg/m3
44
samples
0.44
dust max (mg/m3)
0
over MSHA ECV
ⓘThe excessive concentration value (ECV) is MSHA's own per-sample enforcement threshold, which builds in measurement uncertainty; a sample over its ECV can trigger a citation. The count covers only samples MSHA assigned an ECV.
29 samples taken by MSHA inspectors, 15 by the operator.
Noise
ⓘThe share counts noise samples whose measured dose exceeded the 90 dBA permissible exposure limit. It describes the sampled workplace, not what reached the miner's ear: hearing conservation programs and the hearing protection worn during the shift are recorded separately and are not reflected here.
Health sampling trend
ⓘ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.
Respirable coal dust by year
ⓘRespirable coal dust and silica figures cover coal facilities. Dust compliance is measured against the current 1.5 mg/m3 standard; samples predating the 2014 standard are included, so compliance rates are a coarse historical signal.
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year
Employees
2026
4
2025
3
2024
2
2023
2
2022
1
2021
2
2020
1
2019
1
2018
2
2017
1
2016
3
2015
1
2014
1
2013
2
2012
9
2011
5
Source: MSHA quarterly employment and production, updated weekly.
MARMON sits in Somerset County, Pennsylvania, where the Census mining category is 1.6% 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.
Somerset County, Pennsylvania · Population 73,255
1.6%
Mining share of county employment
$59,378
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
2,084
0
0
0.0
2026 Q1
2,388
0
0
0.0
2025 Q4
2,039
0
0
0.0
2025 Q3
1,511
0
0
0.0
2025 Q2
852
0
0
0.0
2025 Q1
60
0
0
0.0
2024 Q4
783
0
0
0.0
2024 Q3
88
0
0
0.0
Show 52 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2024 Q2
461
0
0
0.0
2024 Q1
44
0
0
0.0
2023 Q4
702
0
0
0.0
2023 Q3
1,410
0
0
0.0
2023 Q2
687
0
0
0.0
2023 Q1
58
1
0
17241.4
2022 Q4
192
0
0
0.0
2022 Q3
692
0
0
0.0
2022 Q2
1,371
0
0
0.0
2022 Q1
460
0
0
0.0
2021 Q4
25
0
0
0.0
2021 Q3
0
0
0
2021 Q2
96
0
0
0.0
2021 Q1
1,165
0
0
0.0
2020 Q4
19
0
0
0.0
2020 Q3
9
0
0
0.0
2020 Q2
9
0
0
0.0
2020 Q1
75
0
0
0.0
2019 Q4
91
0
0
0.0
2019 Q3
44
0
0
0.0
2019 Q2
53
0
0
0.0
2019 Q1
97
0
0
0.0
2018 Q4
833
0
0
0.0
2018 Q3
118
0
0
0.0
2018 Q2
1,371
2
0
1458.8
2018 Q1
874
0
0
0.0
2017 Q4
307
0
0
0.0
2017 Q3
156
0
0
0.0
2017 Q2
133
0
0
0.0
2017 Q1
42
0
0
0.0
2016 Q4
1,155
0
0
0.0
2016 Q3
2,442
0
0
0.0
2016 Q2
1,417
0
0
0.0
2016 Q1
245
0
0
0.0
2015 Q4
146
0
0
0.0
2015 Q3
168
1
0
5952.4
2015 Q2
258
0
0
0.0
2015 Q1
274
0
0
0.0
2014 Q4
287
0
0
0.0
2014 Q3
285
0
0
0.0
2014 Q2
248
0
0
0.0
2014 Q1
333
0
0
0.0
2013 Q4
198
0
0
0.0
2013 Q3
494
0
0
0.0
2013 Q2
801
0
0
0.0
2013 Q1
1,593
0
0
0.0
2012 Q4
2,956
2
0
676.6
2012 Q3
4,781
0
0
0.0
2012 Q2
5,132
0
0
0.0
2012 Q1
6,578
0
0
0.0
2011 Q4
3,422
0
0
0.0
2011 Q3
359
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
2 on file
2012 · 2 incidents
May 2, 2012PA · Coalbulldozer operator, universal operator, heavy equipment operator, operating engineerHANDLING OF MATERIALS
Employee was spraying detergent on the boom of the PC400 excavator with a 1 1/2 gallon garden sprayer. Some of the detergent ran down his arm and got between his rubber gloves and Tyvek suit, causing redness and irritation to his right wrist and left forearm.
January 16, 2012PA · Coalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techHANDLING OF MATERIALS
Employee was helping load a 11R22.5 truck tire into the foreman' s pickup. Both the employee and the foreman were lifting the tire into the truck bed when the foreman lost his grip and the employee attempted to hold on to the tire by himself. He twisted his left knee while holding the tire by himself.
Related mines
Other mines operated by ROBINDALE ENERGY SERVICES, INC.