Key Takeaway
Silver Bell is a active surface mine producing Stone, located in Marana, Pima County, AZ. It has 191 violations on record (70 S&S) and $78K in proposed penalties. Operated by Rock Pros USA LLC.
Silver Bell
Operator: Rock Pros USA LLC
Controller: The Shepherd Family Living Trust; The Lin Irrevocable Trust
Location: Marana, Pima County, AZ
Employees: 3
Recent Violations
View all 191 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 02/23/2026 | 56.14207 | Non-S&S | ModNegligence | $0 |
| 10/22/2024 | 56.14100(c) | Non-S&S | ModNegligence | $204 |
| 10/22/2024 | 56.12032 | Non-S&S | ModNegligence | $679 |
| 10/22/2024 | 56.12004 | Non-S&S | ModNegligence | $204 |
| 10/22/2024 | 56.9301 | Non-S&S | ModNegligence | $204 |
| 10/22/2024 | 56.14100(b) | Non-S&S | ModNegligence | $204 |
| 10/22/2024 | 56.15001 | Non-S&S | ModNegligence | $204 |
| 10/22/2024 | 47.41(a)(1) | Non-S&S | ModNegligence | $204 |
| 10/22/2024 | 56.17001 | S&S | ModNegligence | $1,098 |
| 06/24/2024 | 56.11002 | Non-S&S | ModNegligence | $204 |
| 06/24/2024 | 56.11002 | S&S | ModNegligence | $1,098 |
| 06/24/2024 | 56.14100(c) | Non-S&S | ModNegligence | $204 |
| 06/24/2024 | 56.14101(a)(2) | Non-S&S | ModNegligence | $204 |
| 06/24/2024 | 56.14107(a) | Non-S&S | ModNegligence | $204 |
| 11/17/2023 | 57.14100(c) | S&S | ModNegligence | $143 |
| 11/17/2023 | 56.14100(b) | Non-S&S | ModNegligence | $143 |
| 11/17/2023 | 56.14101(a)(3) | S&S | ModNegligence | $143 |
| 11/17/2023 | 56.12032 | Non-S&S | ModNegligence | $143 |
| 11/17/2023 | 56.11002 | Non-S&S | ModNegligence | $143 |
| 11/17/2023 | 56.9300(b) | Non-S&S | ModNegligence | $143 |
Accidents & Injuries
View all 1 →| Date | Classification | Injury | Days Lost |
|---|---|---|---|
| 01/21/2002 | HANDLING OF MATERIALS | DYS AWY FRM WRK & RESTRCTD ACT | 1d lost, 14d restricted |
Inspections
View all 82 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 02/23/2026 | 02/25/2026 | 34.50 | 1 |
| 07/09/2025 | 07/10/2025 | 5.25 | 1 |
| 11/18/2024 | 11/27/2024 | 5.50 | 1 |
| 10/21/2024 | 10/23/2024 | 27.00 | 1 |
| 06/24/2024 | 06/27/2024 | 16.25 | 1 |
| 12/01/2023 | 12/01/2023 | 4.25 | 1 |
| 11/16/2023 | 11/27/2023 | 15.25 | 1 |
| 07/24/2023 | 07/24/2023 | 5.50 | 1 |
| 07/13/2023 | 07/13/2023 | 10.00 | 1 |
| 01/25/2023 | 01/25/2023 | 5.00 | 1 |
Mine Details
Related Mines
Frequently Asked Questions
How many MSHA violations does Silver Bell have?
Silver Bell has 191 MSHA violations on record, of which 70 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $78K.
What type of mine is Silver Bell?
Silver Bell is a Surface mine producing Stone, located in Marana, Pima County, AZ. It currently has 3 employees.
Has anyone been injured or killed at Silver Bell?
According to MSHA records, Silver Bell has 1 reported accident/injury records and 0 fatalities on file.
Who operates Silver Bell?
Silver Bell is operated by Rock Pros USA LLC and controlled by The Shepherd Family Living Trust; The Lin Irrevocable Trust. MSHA Mine ID: 0202848.