Thorn Hill Quarry Metal/Non-Metal
Clear Development, LLC
· Surface
Controlled by
Justin Clear
Thorn Hill,
Grainger County,
TN
·
Active
MSHA Mine ID: 4003526
Thorn Hill Quarry has $13K in proposed MSHA penalties and $0 outstanding across 1 contested dockets, plus health sampling and the full incident record.
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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
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2020
19
inspections on record
305
inspection hours
n/a
citations per 100 inspection hours
ⓘ
This rate is recorded citations divided by MSHA inspection hours, per 100 hours. It reflects inspection effort, not mine size or production.Rate withheld: 305 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Thorn Hill Quarry has $13K in proposed MSHA penalties and $0 outstanding across 1 contested dockets.
Penalty disposition
ⓘ
Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.$13K
proposed penalties
$13K
current assessed
$13K
paid to date
$0
outstanding
35 assessments are final orders; 1 contested dockets.
As of the most recent assessment on 2026-02-17.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
See also
the operator's enforcement record
Quarterly safety rates
ⓘ
Citations per million reported employee-hours. Rates begin in 2000, when MSHA's quarterly employment data starts; earlier incidents are counted but cannot be rate-adjusted. Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.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 |
Show 9 earlier quarters Hide earlier quarters
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2023 Q4 | 1,738 | 0 | 0 | 0.0 |
| 2023 Q3 | 1,971 | 0 | 0 | 0.0 |
| 2023 Q2 | 3,788 | 1 | 0 | 264.0 |
| 2023 Q1 | 3,619 | 8 | 0 | 2210.6 |
| 2022 Q4 | 2,816 | 0 | 0 | 0.0 |
| 2022 Q3 | 3,446 | 3 | 0 | 870.6 |
| 2022 Q2 | 4,362 | 0 | 0 | 0.0 |
| 2022 Q1 | 2,508 | 0 | 0 | 0.0 |
| 2021 Q4 | 3,514 | 0 | 0 | 0.0 |
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.
For insurers, brokers, and safety consultants
The full compliance file on Thorn Hill Quarry
A dated report covering the 26-year penalty trail, line-item violation pattern, contest and docket posture, rate-normalized peer benchmark, and full fatality history. Delivered as a PDF with the underlying data as CSV.