Robert Bruce Jones: 18 MSHA citations controller
Robert Bruce Jones has no reportable incidents on file with MSHA. MSHA has proposed $3K in penalties since 2009, with $3K outstanding.
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Email me when a new MSHA incident is filed at any mine Robert Bruce Jones controls.
- Fatalities
- 0
- Total incidents
- 0
- Mines on record
- 0
- Years on record
- —
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This rate is recorded citations divided by MSHA inspection hours, per 100 hours. It reflects inspection effort, not mine size or production.ⓘ
Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.ⓘ
Shares are computed over citations that carry the MSHA gravity and negligence coding; a small share of records are uncoded.ⓘ
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: 2023-06-26, 3 years ago
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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.ⓘ
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.- UTILITY MAN2
- COAL DRILL OPERATOR1
- CONTINUOUS MINER OPERATOR1
Silica (quartz)
Last sampled: 2023-07-05, 3 years ago- CONTINUOUS MINER OPERATOR1
- ROOF BOLTER (TWIN HEAD) (RETURN SIDE)1
Noise
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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: 2023-06-26, 3 years ago
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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.- COAL DRILL OPERATOR2
- BELT MAN/CONVEYOR MAN1
- CONTINUOUS MINER OPERATOR1
No reportable incidents on file.
MSHA has no recorded reportable accidents associated with this controller.
Where Robert Bruce Jones stands on silica, penalties, and injury rate
MSHA's standard limits respirable silica to 50 micrograms per cubic metre, but MSHA publishes dust and quartz as separate files and never the silica figure itself. We derive it per sample, score it against the limit, and set the operator's injury rate against a benchmark built from the full MSHA operator record. With the 26-year penalty trail, contest posture, and fatality history. Delivered as a PDF with the underlying data as CSV.
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