Employee was scaling from a man basket on a boom truck when large slabs of rock struck the boom causing it to separate from the boom.
Margaret J Heckman: 6 recorded fatalities controller
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Email me when a new MSHA incident is filed at any mine Margaret J Heckman controls.
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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.ⓘ
A Section 107(a) order removes miners from an area when an inspector finds an imminent danger. Each order is lifted once the condition is corrected, so this counts orders issued, not orders now in effect.ⓘ
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.ⓘ
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.| Year | total case rate | days-away | fatal |
|---|---|---|---|
| 2022 | 1.52 | 0.22 | 0.000 |
| 2021 | 2.46 | 0.49 | 0.000 |
| 2020 | 4.69 | 1.17 | 0.000 |
| 2019 | 1.73 | 1.25 | 0.000 |
| 2018 | 2.68 | 0.63 | 0.000 |
| 2017 | 1.98 | 0.99 | 0.000 |
| 2016 | 5.26 | 1.70 | 0.000 |
| 2015 | 1.41 | 0.35 | 0.000 |
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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.Metal and nonmetal contaminants (personal samples)
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Many samples are screening measurements of substances with no applicable exposure limit; they are counted as samples but excluded from every over-limit figure. Over-limit shares use only limit-tested samples.
Last sampled: 2021-03-23, 5 years ago
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Many samples are screening measurements of substances with no applicable exposure limit; they are counted as samples but excluded from every over-limit figure. Over-limit shares use only limit-tested samples.- Nuisance dust, total, <1% Qtz455 over
- TCarbon @ 35082 over
- Diesel particulate (total carbon)331 over
- TC as EC @ 35081 over
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Contesting a citation before the Federal Mine Safety and Health Review Commission is a lawful right. These figures state the public outcomes of that process, from MSHA's Contested Violations file.- Settled 176 · 92%
- Stood as issued 15 · 8%
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Counts a Significant & Substantial citation as surviving when a settlement or judge's decision kept the designation, or the contest was dismissed or defaulted so the citation stands as issued. Vacated and withdrawn citations, and settlements that removed the designation, count against.ⓘ
A reduction or dismissal at the Commission is a lawful outcome of contesting a proposed penalty. Figures are the proposed amount and the amount upheld in the docket's decision.| Docket | Decision | Judge | Year | Proposed / upheld |
|---|---|---|---|---|
| CENT 2014-0533 | Settlement | Rae | 2015 | $41K → $34K |
| CENT 2014-0635 | Settlement | Rae | 2015 | $32K → $10K |
| CENT 2021-0114 | Settlement | Miller | 2021 | $17K → $5K |
| CENT20030099M | Settlement | Barbour | 2004 | $15K → $12K |
| CENT 2019-0292 | Settlement | Gill | 2019 | $14K → $7K |
| CENT 2022-0003 | Settlement | Manning | 2022 | $11K → $9K |
Top causes
- MACHINERY 2 fatalities · 189 non-fatal
- FALL OF FACE/RIB/PILLAR/SIDE/HIGHWALL 2 fatalities · 4 non-fatal
- HANDLING OF MATERIALS 1 fatality · 668 non-fatal
- FALL OF ROOF OR BACK 1 fatality · 23 non-fatal
- SLIP OR FALL OF PERSON 358 non-fatal
- HANDTOOLS (NONPOWERED) 291 non-fatal
Incident timeline
Operators under this controller
Mines on record
Fatalities under this controller
6 recordedThe employees were scaling from a man basket on a boom truck when large slabs struck the boom causing it to separate from the truck.
EE and other co-workers were trying to connect a 42-in. inlet duct to a top reversal box through an opening in the building. The EE was inside the building between the inlet duct and reversal box. When the inlet duct unexpectedly came through the opening, it struck the injured employee in the head causing severe head injury resulting in death on 6/19/2007.
WHILE ON THE GROUND SPOTTING FOR THE MAINTENANCECREW HE WAS STRUCK ON THE HEAD BY A DUST COLLECTOR BAG FULL OF LIME. EMPLOYEE WAS PRONOUNCED DEAD AT THE SCENE BY THE CORONER.
THE DECEASED WAS ASKED TO EXAMINE A CORNER OF A PILLAR BY THE SCALERS. HE GOT IN HI-RANGER BASKET W/O FALL LPROTECTION OVER THE OBJECTION OF SCALER (1 1/2 YRS EXP). WHILE INSPECTING THE PILL AR, THE BASKET BECAME HUNG UP ON THE SIDE OF THE PILLAR, WHEN IT BROKE FREE. THE BOOM SPRUNG AND THREW BOTH MEN OUT. THE SCALER WAS SAVED BY HIS FALL PROTECTION. THE POWDERMAN FELL APPROX 5
ROOF FAILURE UNDERGROUND.
Where Margaret J Heckman 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.
The federal record itself stays free on this site. What costs money, and why.