Injury rate, 2001
ⓘ
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 6.94 and the all-US-mining average was 5.26 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 |
| 2001 * |
0.00 |
0.00 |
0.000 |
| 2000 * |
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: 2002-02-27, 24 years ago
76 samples taken by MSHA inspectors, 83 by the operator.
Most-sampled occupations
- CONTINUOUS MINER OPERATOR69
- MOBILE BRIDGE OPERATOR12
- UTILITY MAN4
Silica (quartz)
Last sampled: 2002-03-05, 24 years ago
Most-sampled occupations
- CONTINUOUS MINER OPERATOR4
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: 2002-03-13, 24 years ago
Most-sampled occupations
- ROOF BOLTER (SINGLE HEAD)8
- MOBILE BRIDGE OPERATOR7
- CONTINUOUS MINER OPERATOR6
Source: MSHA respirable dust, quartz, and noise sampling records, updated weekly.