Injury rate, 2013
ⓘ
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.
No reportable injury cases in any year shown. Employee-hours were reported in each of those years, so these are true zeros rather than missing data. Citations, listed in the compliance record above, are inspector-found violations and are counted separately from worker injuries.
Below average. The US coal mining average was 3.94 and the all-US-mining average was 2.99 cases per 100 workers.
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 |
| 2013 * |
0.00 |
0.00 |
0.000 |
| 2012 * |
0.00 |
0.00 |
0.000 |
| 2011 |
0.00 |
0.00 |
0.000 |
| 2010 |
0.00 |
0.00 |
0.000 |
| 2009 |
0.00 |
0.00 |
0.000 |
| 2008 |
0.00 |
0.00 |
0.000 |
| 2007 |
0.00 |
0.00 |
0.000 |
| 2006 |
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.
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: 2017-03-15, 9 years ago
137 samples taken by MSHA inspectors, 8 by the operator.
Most-sampled occupations
- HIGHWALL DRILL OPERATOR27
- HIGHLIFT OPERATOR/FRONT END LOADER20
- BLASTER/SHOOTER/SHOTFIRER19
Silica (quartz)
Last sampled: 2017-03-20, 9 years ago
Most-sampled occupations
- HIGHWALL DRILL OPERATOR6
- BLASTER/SHOOTER/SHOTFIRER2
- REFUSE TRUCK DRIVER/BACKFILL TRUCK DRIVE2
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.
Last sampled: 2017-03-15, 9 years ago
Most-sampled occupations
- BULLDOZER OPERATOR14
- HIGHLIFT OPERATOR/FRONT END LOADER11
- BLASTER/SHOOTER/SHOTFIRER10
Source: MSHA respirable dust, quartz, and noise sampling records, updated weekly.