Thorn Hill Quarry Metal/Non-Metal
Clear Development, LLC
· Surface
Controlled by
Justin Clear
Thorn Hill,
Grainger County,
TN
·
Active
MSHA Mine ID: 4003526
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- Fatalities
- 0
- Total incidents
- 0
- Years on record
- —
- Latest incident
- —
Compliance record
MSHA citations since 2022
37
citations
7
significant & substantial
$12,606
proposed penalties
$12,606
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 | 5,837 | 0 | 0 | 0.0 |
| 2025 Q3 | 3,917 | 8 | 3 | 2042.4 |
| 2025 Q2 | 3,167 | 0 | 0 | 0.0 |
| 2025 Q1 | 4,044 | 2 | 0 | 494.6 |
| 2024 Q4 | 3,766 | 3 | 0 | 796.6 |
| 2024 Q3 | 3,213 | 1 | 0 | 311.2 |
| 2024 Q2 | 3,491 | 0 | 0 | 0.0 |
| 2024 Q1 | 3,221 | 5 | 1 | 1552.3 |
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.