Simpson Mine Metal/Non-Metal
Thomas Cement
· Surface
Controlled by
Thomas Concrete Group AB
Jefferson,
Chesterfield County,
SC
·
Active
MSHA Mine ID: 3800730
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- Fatalities
- 0
- Total incidents
- 0
- Years on record
- —
- Latest incident
- —
Compliance record
MSHA citations since 2010
47
citations
9
significant & substantial
$8,612
proposed penalties
$8,612
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 | 1,792 | 2 | 0 | 1116.1 |
| 2025 Q3 | 1,279 | 0 | 0 | 0.0 |
| 2025 Q2 | 1,838 | 0 | 0 | 0.0 |
| 2025 Q1 | 1,706 | 0 | 0 | 0.0 |
| 2024 Q4 | 1,823 | 0 | 0 | 0.0 |
| 2024 Q3 | 1,637 | 1 | 0 | 610.9 |
| 2024 Q2 | 1,961 | 0 | 0 | 0.0 |
| 2024 Q1 | 1,758 | 1 | 0 | 568.8 |
Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.
No reportable incidents on file.
MSHA has no recorded reportable accidents for this mine in the current dataset. New reports appear here within a week of being filed.