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: 528 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
King Mine has $11K in proposed MSHA penalties and $100 outstanding across 4 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.
$11K
proposed penalties
$9K
current assessed
$9K
paid to date
$100
outstanding
32 assessments are final orders; 4 contested dockets.
Of $10K in penalties contested before the Commission, $6K was upheld in final decisions.
As of the most recent assessment on 2024-04-23.
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.
8citations taken to the federal commission · 25% of citations on record
Settled
5 · 63%
Stood as issued
1 · 13%
Vacated or withdrawn
2 · 25%
60%
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 Vacated and withdrawn citations, and settlements that removed the designation, count against.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 5 decided S&S contests · industry: 79%
45%
Penalty reduction in decided contests
$11K 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 A dismissed or defaulted contest leaves the citation standing as issued; a vacated or withdrawn citation is removed from the violation record.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 2016-08-29.
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 King Mine shows 100% of 9 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: 2025-02-06
100%
within 1.5 mg/m3
9
samples
0.14
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.
5 samples taken by MSHA inspectors, 4 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
2025
1
2024
2
2023
3
2022
3
2018
1
2017
1
2016
1
2015
2
2014
3
2013
17
2012
1
2011
1
2010
2
2009
1
2008
1
2007
0
2006
1
2005
1
2004
1
2003
2
2001
4
Source: MSHA quarterly employment and production, updated weekly.
King Mine sits in Carbon County, Utah, where the Census mining category is 5.9% 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.
Carbon County, Utah · Population 20,446
5.9%
Mining share of county employment
$53,673
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
2025 Q1
40
0
0
0.0
2024 Q3
103
0
0
0.0
2024 Q2
88
1
0
11363.6
2024 Q1
20
0
0
0.0
2023 Q1
120
0
0
0.0
2022 Q3
50
1
0
20000.0
2022 Q2
62
0
0
0.0
2018 Q3
263
0
0
0.0
Show 61 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2018 Q2
334
0
0
0.0
2018 Q1
204
0
0
0.0
2017 Q4
197
0
0
0.0
2017 Q3
254
0
0
0.0
2017 Q2
225
0
0
0.0
2017 Q1
149
0
0
0.0
2016 Q4
159
0
0
0.0
2016 Q3
268
0
0
0.0
2016 Q2
272
0
0
0.0
2016 Q1
70
0
0
0.0
2015 Q4
75
0
0
0.0
2015 Q3
254
0
0
0.0
2015 Q2
376
0
0
0.0
2015 Q1
358
0
0
0.0
2014 Q4
511
0
0
0.0
2014 Q3
426
0
0
0.0
2014 Q2
601
0
0
0.0
2014 Q1
301
0
0
0.0
2013 Q4
68
0
0
0.0
2013 Q3
1,960
7
3
3571.4
2013 Q2
1,756
0
0
0.0
2013 Q1
204
0
0
0.0
2012 Q4
113
0
0
0.0
2012 Q3
74
0
0
0.0
2012 Q2
63
0
0
0.0
2012 Q1
62
0
0
0.0
2011 Q4
6
0
0
0.0
2011 Q3
3
0
0
0.0
2011 Q2
6
0
0
0.0
2011 Q1
3
0
0
0.0
2010 Q4
20
0
0
0.0
2010 Q3
220
0
0
0.0
2010 Q2
234
0
0
0.0
2010 Q1
120
0
0
0.0
2009 Q4
104
0
0
0.0
2009 Q3
96
0
0
0.0
2009 Q2
96
1
0
10416.7
2009 Q1
240
1
0
4166.7
2008 Q4
206
0
0
0.0
2008 Q3
0
0
0
2008 Q2
480
0
0
0.0
2008 Q1
0
0
0
2007 Q4
0
0
0
2007 Q3
0
0
0
2007 Q2
0
1
0
2007 Q1
994
0
0
0.0
2006 Q4
210
0
0
0.0
2006 Q2
75
0
0
0.0
2006 Q1
0
1
0
2005 Q4
90
0
0
0.0
2005 Q3
24
1
0
41666.7
2005 Q2
6
0
0
0.0
2005 Q1
0
0
0
2004 Q4
163
0
0
0.0
2004 Q1
375
0
0
0.0
2003 Q2
466
0
0
0.0
2003 Q1
361
0
0
0.0
2001 Q4
570
0
0
0.0
2001 Q3
656
0
0
0.0
2001 Q2
990
0
0
0.0
2001 Q1
4,221
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
1 on file
1997 · 1 incident
January 15, 1997UT · Coalcrane operator, mobile equipment operator (meo), dragline operator, dropball operator, riggerSLIP OR FALL OF PERSON