Key Takeaway
Simpson Mine is a active surface mine producing SandAndGravel, located in Jefferson, Chesterfield County, SC. It has 47 violations on record (9 S&S) and $9K in proposed penalties. Operated by Thomas Cement.
Simpson Mine
Operator: Thomas Cement
Controller: Thomas Concrete Group AB
Location: Jefferson, Chesterfield County, SC
Employees: 3
Recent Violations
View all 47 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 10/29/2025 | 50.30(a) | Non-S&S | LowNegligence | $151 |
| 10/29/2025 | 41.12 | Non-S&S | ModNegligence | $151 |
| 07/18/2024 | 56.9300(b) | Non-S&S | ModNegligence | $147 |
| 02/22/2024 | 56.14112(b) | Non-S&S | ModNegligence | $147 |
| 04/16/2023 | 50.30(a) | Non-S&S | ModNegligence | $143 |
| 10/16/2022 | 50.30(a) | Non-S&S | ModNegligence | $143 |
| 03/11/2021 | 56.4402 | Non-S&S | ModNegligence | $125 |
| 01/10/2020 | 56.14100(b) | Non-S&S | ModNegligence | $123 |
| 10/13/2016 | 56.4201(a)(2) | Non-S&S | ModNegligence | $114 |
| 10/13/2016 | 56.4101 | Non-S&S | ModNegligence | $114 |
| 10/13/2016 | 56.13011 | Non-S&S | ModNegligence | $114 |
| 10/13/2016 | 56.12004 | Non-S&S | ModNegligence | $114 |
| 05/05/2016 | 56.14112(b) | Non-S&S | ModNegligence | $100 |
| 05/05/2016 | 56.4200(b)(2) | Non-S&S | ModNegligence | $100 |
| 01/25/2016 | 56.12004 | Non-S&S | ModNegligence | $100 |
| 05/26/2015 | 56.4200(b)(2) | Non-S&S | ModNegligence | $100 |
| 05/26/2015 | 56.12034 | Non-S&S | ModNegligence | $100 |
| 03/31/2015 | 50.30(a) | Non-S&S | ModNegligence | $100 |
| 12/18/2014 | 56.14101(a)(3) | Non-S&S | ModNegligence | $100 |
| 12/03/2013 | 56.14101(a)(2) | Non-S&S | HighNegligence | $162 |
Inspections
View all 47 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 10/29/2025 | 10/29/2025 | 15.25 | 1 |
| 09/03/2025 | 09/03/2025 | 13.50 | 1 |
| 06/25/2025 | 06/25/2025 | 6.25 | 1 |
| 03/10/2025 | 03/10/2025 | 5.25 | 1 |
| 07/18/2024 | 07/18/2024 | 8.25 | 1 |
| 02/22/2024 | 02/22/2024 | 9.00 | 1 |
| 04/18/2023 | 04/18/2023 | 10.00 | 1 |
| 02/01/2023 | 02/01/2023 | 4.75 | 1 |
| 07/13/2022 | 07/14/2022 | 8.25 | 1 |
| 02/02/2022 | 02/02/2022 | 10.00 | 1 |
Mine Details
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Frequently Asked Questions
How many MSHA violations does Simpson Mine have?
Simpson Mine has 47 MSHA violations on record, of which 9 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $9K.
What type of mine is Simpson Mine?
Simpson Mine is a Surface mine producing SandAndGravel, located in Jefferson, Chesterfield County, SC. It currently has 3 employees.
Has anyone been injured or killed at Simpson Mine?
According to MSHA records, Simpson Mine has 0 reported accident/injury records and 0 fatalities on file.
Who operates Simpson Mine?
Simpson Mine is operated by Thomas Cement and controlled by Thomas Concrete Group AB. MSHA Mine ID: 3800730.