Bjoin Limestone Inc · Fall to the walkway or working surface
Employee claims they slipped and lost footing and fell and hit their head on the ground.
Portable Unit #1 Metal/Non-Metal
Bjoin Limestone Inc
· Surface
Controlled by
Kristopher P Bjoin; Shaun M Bjoin; Jonathan M Bjoin
Janesville,
Rock County,
WI
·
Active
MSHA Mine ID: 4701111
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- Fatalities
- 0
- Total incidents
- 3
- Years on record
- 2007–2025
- Latest incident
- May 2025
Compliance record
MSHA citations since 2001
136
citations
31
significant & substantial
$17,458
proposed penalties
$15,902
paid to date
Source: MSHA violations data, updated weekly.
Quarterly safety rates
Citations per million employee-hours, as reported to MSHA
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2025 Q4 | 2,699 | 0 | 0 | 0.0 |
| 2025 Q3 | 3,601 | 0 | 0 | 0.0 |
| 2025 Q2 | 3,632 | 2 | 0 | 550.7 |
| 2025 Q1 | 2,754 | 0 | 0 | 0.0 |
| 2024 Q4 | 3,023 | 0 | 0 | 0.0 |
| 2024 Q3 | 3,549 | 0 | 0 | 0.0 |
| 2024 Q2 | 3,302 | 1 | 0 | 302.8 |
| 2024 Q1 | 2,885 | 0 | 0 | 0.0 |
Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.
No fatalities recorded at this mine.
Reportable incidents
3 on file2025 · 1 incident
2023 · 1 incident
May 10, 2023
WI · Metal/Non-Metal
laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman
POWERED HAULAGE
Bjoin Limestone Inc · Struck by falling object
Setting up the plant, operator of end loader had placed the conveyor hopper on blocks. They backed up and the chain hook caught the conveyor/hopper and dropped on injured employee's foot. EE had steeled toe boots on and got no broken bones, but the toes were pretty squashed. EE had stitches and developed compartment syndrome in their calf.
2007 · 1 incident
June 15, 2007
WI · Metal/Non-Metal
laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman
POWERED HAULAGE
Bjoin Limestone Inc · Caught in, under or between running or meshing objects
Troughing rollers had stopped. Employee pounded with a hammer and hammer got caught.