THE INJURED WAS OPERATING A CHAINSAW CLEARING A DOWNED TREE THAT WAS LAYING AGAINST A SLOPE. WHEN THE EMPLOYEE CUT THE TREE AT ITS BASE, THE TOP OF THE TREE EXTENDING BEYOND THE CREST OF SLOPE FELL TO THE GROUND ALLOWING THE BASE OF THE TREE TO SWING UPWARD, STRIKING THE EMPLOYEE IN THE RIGHT SIDE OF THE FACE. THERE WERE NO IMMEDIATE WITNESSES. CAUSE OF ACCIDENT IS SPECULATIVE.
National Lime & Stone Co.: 1 recorded fatality controller
Watch this controller
Email me when a new MSHA incident is filed at any mine National Lime & Stone Co. 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 |
|---|---|---|---|
| 2026 | 2.99 | 1.50 | 0.000 |
| 2025 | 3.17 | 1.98 | 0.000 |
| 2024 | 3.97 | 1.59 | 0.000 |
| 2023 | 3.76 | 2.09 | 0.000 |
| 2022 | 2.64 | 1.76 | 0.000 |
| 2021 | 2.39 | 1.43 | 0.000 |
| 2020 | 1.69 | 0.84 | 0.000 |
| 2019 | 2.78 | 1.86 | 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: 2026-06-25
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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% Qtz6715 over
- Quartz, respirable, >1% Qtz1315 over
- Respirable dust, <.1mg142
- Nuisance dust, respirable, <1% Qtz71
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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 17 · 71%
- Stood as issued 5 · 21%
- Still open 2 · 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 |
|---|---|---|---|---|
| LAKE 2012-764M | Settlement | Miller | 2014 | $81K → $69K |
| LAKE20010177M | Settlement | Barbour | 2001 | $2K → $1K |
| LAKE20020122M | Settlement | Barbour | 2002 | $2K → $900 |
| LAKE20000101M | Default | Barbour | 2000 | $1K → $1K |
| LAKE20020053M | Settlement | Barbour | 2002 | $760 → $400 |
| LAKE 2014-0256 | Settlement | Bulluck | 2015 | $499 → $100 |
Top causes
- MACHINERY 1 fatality · 70 non-fatal
- HANDLING OF MATERIALS 263 non-fatal
- SLIP OR FALL OF PERSON 168 non-fatal
- HANDTOOLS (NONPOWERED) 105 non-fatal
- POWERED HAULAGE 54 non-fatal
- DISORDERS (REPEATED TRAUMA) 20 non-fatal
Incident timeline
Operators under this controller
Mines on record
- CAREY PLANT OH
- LIMA PLANT OH
- Columbus Region Plant OH
- Findlay Plant OH
- Ottawa Plant OH
- South Columbus Sand and Gravel Plant OH
- BUCYRUS PLANT OH
- BUCKLAND PLANT OH
- Chesterville Sand & Gravel Plant OH
- MARION PLANT OH
- South Columbus Aggregate Plant OH
- Rimer Plant OH
- Cascades Cut Stone Company OH
- Radnor Quarry OH
- Upper Sandusky OH
- Upper Sandusky Plant OH
- Delphos Plant OH
- Findlay Plant OH
Fatalities under this controller
1 recordedWhere National Lime & Stone Co. 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.