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: 651 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Liberty Mine has $100 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.
$100
proposed penalties
$100
current assessed
$100
paid to date
$0
outstanding
1 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2014-03-10.
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.
MSHA sampling at Liberty Mine shows 100% of 92 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: 2019-03-19, 7 years ago
100%
within 1.5 mg/m3
92
samples
0.08
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.
74 samples taken by MSHA inspectors, 18 by the operator.
Most-sampled occupations
BULLDOZER OPERATOR46
REFUSE TRUCK DRIVER/BACKFILL TRUCK DRIVE21
LABORER/BLACKSMITH8
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.
Liberty Mine recorded 2.39 reportable injury cases per 100 full-time workers in 2018.
Injury rate, 2018
ⓘ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.
2.39
total case rate
0.00
days-away rate
0.000
fatality rate
Below average. The US coal mining average was 3.34 and the all-US-mining average was 2.33 cases per 100 workers.
In Mississippi, coal mining averaged 0.40 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
2018 *
2.39
0.00
0.000
2017
0.85
0.85
0.000
2016
0.00
0.00
0.000
2015
0.00
0.00
0.000
2014
0.00
0.00
0.000
2013
1.02
0.00
0.000
2012 *
0.00
0.00
0.000
2011 *
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
ⓘCoal production is reported quarterly and lags the current period; the most recent quarters may be incomplete.
Year
Employees
Coal produced (tons)
2019
40
2018
46
2017
171
230,146
2016
123
103,649
2015
112
167,116
2014
118
846,262
2013
92
251,591
2012
43
2011
29
Source: MSHA quarterly employment and production, updated weekly.
Liberty Mine sits in Kemper County, Mississippi, where the Census mining category is 0.0% 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.
Kemper County, Mississippi · Population 8,855
0.0%
Mining share of county employment
$43,595
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
2019 Q1
20,045
0
0
0.0
2018 Q4
20,068
0
0
0.0
2018 Q3
21,283
0
0
0.0
2018 Q2
22,774
0
0
0.0
2018 Q1
19,481
0
0
0.0
2017 Q4
22,620
0
0
0.0
2017 Q3
68,248
0
0
0.0
2017 Q2
76,378
0
0
0.0
Show 25 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2017 Q1
68,756
0
0
0.0
2016 Q4
54,688
0
0
0.0
2016 Q3
45,678
0
0
0.0
2016 Q2
34,521
0
0
0.0
2016 Q1
31,861
0
0
0.0
2015 Q4
30,360
0
0
0.0
2015 Q3
24,459
0
0
0.0
2015 Q2
30,288
0
0
0.0
2015 Q1
38,230
0
0
0.0
2014 Q4
38,867
0
0
0.0
2014 Q3
64,451
0
0
0.0
2014 Q2
62,614
0
0
0.0
2014 Q1
56,393
1
0
17.7
2013 Q4
56,349
0
0
0.0
2013 Q3
61,354
0
0
0.0
2013 Q2
43,714
0
0
0.0
2013 Q1
34,334
0
0
0.0
2012 Q4
28,232
0
0
0.0
2012 Q3
30,738
0
0
0.0
2012 Q2
18,643
0
0
0.0
2012 Q1
12,165
0
0
0.0
2011 Q4
18,036
0
0
0.0
2011 Q3
20,630
0
0
0.0
2011 Q2
16,634
0
0
0.0
2011 Q1
12,728
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
6 on file
2018 · 1 incident
June 6, 2018MS · Coalbulldozer operator, universal operator, heavy equipment operator, operating engineerSTRIKING OR BUMPING
Employee was removing brush guard from the rear window of D6 bulldozer. The guard came free from bulldozer causing the employee to become over balance and fall to the shop floor resulting in personal injury.
2013 · 3 incidents
October 9, 2013MS · Coalclerk, timekeeper, office worker, director of salesSLIP OR FALL OF PERSON
Employee state he was loosening air line fittings from pipe fittings with two wrenches. Upon squeezing he wrenches to loosen the fittings he heard a tearing sound and burn in his left shoulder. Strength was weakened in left arm, thought it would be better. By Friday evening, bruise had formed on left bicep and pain persisted. DID NOT REPORT INCIDENT UNTIL 9/2/13 late evening.
April 19, 2013MS · Coalminer, prospector, necMACHINERY
EE was grinding off slag from a handrail when the draw string of his jacket caught in the grinder, causing the grinder to hit his chin and cause a laceration.
Driller was drilling undeveloped area to identify location of coal seams. Moving to another boring location when rig popped out of gear and began rolling down an incline. Could not get into gear and brakes could not stop momentum. Driller ran rig into a tree, injuring wrist and knees.