Key Takeaway
Thorn Hill Quarry is a active surface mine producing Stone, located in Thorn Hill, Grainger County, TN. It has 36 violations on record (7 S&S) and $11K in proposed penalties. Operated by Clear Development, LLC.
Thorn Hill Quarry
Operator: Clear Development, LLC
Controller: Justin Clear
Location: Thorn Hill, Grainger County, TN
Employees: 7
Recent Violations
View all 36 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 02/17/2026 | 56.12028 | S&S | ModNegligence | $0 |
| 02/17/2026 | 56.16005 | S&S | ModNegligence | $0 |
| 02/17/2026 | 56.14107(a) | S&S | ModNegligence | $0 |
| 02/17/2026 | 56.14132(a) | Non-S&S | ModNegligence | $0 |
| 02/17/2026 | 56.14103 | Non-S&S | ModNegligence | $0 |
| 07/07/2025 | 56.9315 | Non-S&S | ModNegligence | $193 |
| 07/07/2025 | 56.14130(g) | S&S | ModNegligence | $959 |
| 07/03/2025 | 56.14100(b) | Non-S&S | HighNegligence | $288 |
| 07/03/2025 | 56.14100(d) | Non-S&S | HighNegligence | $288 |
| 07/03/2025 | 56.9300(a) | S&S | ModNegligence | $959 |
| 07/02/2025 | 56.14103(b) | Non-S&S | HighNegligence | $226 |
| 07/02/2025 | 56.14100(a) | Non-S&S | HighNegligence | $226 |
| 07/02/2025 | 56.14101(a)(2) | S&S | HighNegligence | $3,736 |
| 03/24/2025 | 56.14107(a) | Non-S&S | ModNegligence | $151 |
| 03/20/2025 | 56.14100(b) | Non-S&S | ModNegligence | $151 |
| 12/16/2024 | 56.7002 | Non-S&S | $0 | |
| 10/02/2024 | 56.7002 | Non-S&S | ModNegligence | $147 |
| 10/02/2024 | 56.14132(b)(1)(i) | Non-S&S | LowNegligence | $147 |
| 07/02/2024 | 56.14100(b) | Non-S&S | ModNegligence | $679 |
| 02/29/2024 | 56.14101(a)(2) | S&S | ModNegligence | $492 |
Inspections
View all 18 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 02/17/2026 | 03/02/2026 | 21.25 | 1 |
| 07/02/2025 | 07/21/2025 | 38.50 | 1 |
| 03/20/2025 | 03/26/2025 | 19.50 | 1 |
| 02/27/2025 | 02/28/2025 | 4.75 | 1 |
| 01/16/2025 | 01/16/2025 | 3.25 | 1 |
| 10/15/2024 | 12/17/2024 | 8.50 | 1 |
| 10/01/2024 | 10/03/2024 | 13.00 | 1 |
| 07/01/2024 | 07/03/2024 | 15.75 | 1 |
| 02/29/2024 | 03/06/2024 | 16.50 | 1 |
| 02/23/2024 | 02/28/2024 | 18.00 | 2 |
Mine Details
Related Mines
Frequently Asked Questions
How many MSHA violations does Thorn Hill Quarry have?
Thorn Hill Quarry has 36 MSHA violations on record, of which 7 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $11K.
What type of mine is Thorn Hill Quarry?
Thorn Hill Quarry is a Surface mine producing Stone, located in Thorn Hill, Grainger County, TN. It currently has 7 employees.
Has anyone been injured or killed at Thorn Hill Quarry?
According to MSHA records, Thorn Hill Quarry has 0 reported accident/injury records and 0 fatalities on file.
Who operates Thorn Hill Quarry?
Thorn Hill Quarry is operated by Clear Development, LLC and controlled by Justin Clear. MSHA Mine ID: 4003526.