Injury rate, 2000
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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 7.74 and the all-US-mining average was 5.64 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.
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
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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
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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: 2000-08-25, 26 years ago
17 samples taken by MSHA inspectors, 3 by the operator.
Most-sampled occupations
- BULLDOZER OPERATOR6
- HIGHLIFT OPERATOR/FRONT END LOADER3
- REFUSE TRUCK DRIVER/BACKFILL TRUCK DRIVE3
Silica (quartz)
Last sampled: 2000-09-01, 25 years ago
Most-sampled occupations
- BULLDOZER OPERATOR1
- GROUNDMAN1
Source: MSHA respirable dust, quartz, and noise sampling records, updated weekly.