Data / Mines / South Carolina / Lexington County
Mines in Lexington County, South Carolina: 11 open mines
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
MSHA lists 11 open mines in Lexington County, South Carolina, run by 9 operators and employing 135 people. Since January 1, 2022 its inspectors issued 222 citations and orders there with $83,036 in proposed penalties, and operators reported 16 injury or illness cases. The operators with the most open mines are American Materials Company,LLC; Bluegrass Materials Company, LLC; U.S. Silica Company, LLC. Data from MSHA, November 6, 2026.
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- Open mines
- 11
- Operators
- 9
- Employees
- 135
- Active
- 10
- Intermittent
- 1
- Citations and orders since January 1, 2022
- 222
- Significant and substantial
- 24 (10.8%)
- Closure orders
- 8
- High negligence or reckless
- 18
- Proposed penalties
- $83,036
- Amount paid so far
- $76,177
- Inspections
- 162
- Inspector hours on site
- 1,633
- Citations per inspection
- 1.37 (all mines 2.30)
- Accident reports
- 18
- Injury and illness cases
- 16
- Fatalities
- 0
- Latest MSHA record
- October 30, 2026
Operators with the most open mines in Lexington County, South Carolina
Ranked by open mines, then by citations. Sole proprietors and individuals are not listed.
| Operator | Open mines | Employees | Citations since 2022 | Proposed penalties | Injury cases |
|---|---|---|---|---|---|
| American Materials Company,LLC | 2 | 16 | 23 | $6,751 | 2 |
| Bluegrass Materials Company, LLC | 2 | 14 | 6 | $675 | 1 |
| U.S. Silica Company, LLC | 1 | 55 | 124 | $61,055 | 3 |
| Martin Marietta Materials, Inc. | 1 | 27 | 32 | $6,308 | 3 |
| R&T Grading, Inc | 1 | 2 | 22 | $5,256 | 0 |
| I-20 Sand Mine LLC | 1 | 2 | 8 | $1,185 | 0 |
| Heidelberg Materials Southeast Agg., LLC | 1 | 6 | 6 | $1,673 | 0 |
| Vulcan Construction Materials, LLC | 1 | 12 | 1 | $133 | 7 |
| General Shale Brick, Inc. | 1 | 1 | 0 | $0 | 0 |
Operators with the most citations in Lexington County, South Carolina
Citations and orders issued since January 1, 2022 at their open mines here.
| Operator | Open mines | Employees | Citations since 2022 | Proposed penalties | Injury cases |
|---|---|---|---|---|---|
| U.S. Silica Company, LLC | 1 | 55 | 124 | $61,055 | 3 |
| Martin Marietta Materials, Inc. | 1 | 27 | 32 | $6,308 | 3 |
| American Materials Company,LLC | 2 | 16 | 23 | $6,751 | 2 |
| R&T Grading, Inc | 1 | 2 | 22 | $5,256 | 0 |
| I-20 Sand Mine LLC | 1 | 2 | 8 | $1,185 | 0 |
| Bluegrass Materials Company, LLC | 2 | 14 | 6 | $675 | 1 |
| Heidelberg Materials Southeast Agg., LLC | 1 | 6 | 6 | $1,673 | 0 |
| Vulcan Construction Materials, LLC | 1 | 12 | 1 | $133 | 7 |
| General Shale Brick, Inc. | 1 | 1 | 0 | $0 | 0 |
Mines with the most citations
Open mines, ranked by citations and orders since January 1, 2022.
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Columbia Plant | U.S. Silica Company, LLC | Lexington County, SC | Sand, industrial | 55 | 124 |
| Cayce Quarry | Martin Marietta Materials, Inc. | Lexington County, SC | Crushed, broken granite | 27 | 32 |
| Frick Mine | R&T Grading, Inc | Lexington County, SC | Construction sand and gravel | 2 | 22 |
| Dixiana Mine | American Materials Company,LLC | Lexington County, SC | Construction sand and gravel | 8 | 19 |
| I-20 Sand Mine LLC | I-20 Sand Mine LLC | Lexington County, SC | Sand, common | 2 | 8 |
| Columbia Sand | Heidelberg Materials Southeast Agg., LLC | Lexington County, SC | Construction sand and gravel | 6 | 6 |
| Lanier Sand | American Materials Company,LLC | Lexington County, SC | Construction sand and gravel | 8 | 4 |
| Calhoun Sand | Bluegrass Materials Company, LLC | Lexington County, SC | Sand, common | 12 | 3 |
| Old Charleston Sand | Bluegrass Materials Company, LLC | Lexington County, SC | Construction sand and gravel | 2 | 3 |
| Lexington Quarry | Vulcan Construction Materials, LLC | Lexington County, SC | Crushed, broken granite | 12 | 1 |
| Lexington County Mines | General Shale Brick, Inc. | Lexington County, SC | Common clays | 1 | 0 |
Main commodities
| Main commodity | Open mines | Share |
|---|---|---|
| Construction sand and gravel | 5 | 45.5% |
| Crushed, broken granite | 2 | 18.2% |
| Sand, common | 2 | 18.2% |
| Sand, industrial | 1 | 9.1% |
| Common clays | 1 | 9.1% |
Citations and injury cases by year
Calendar years since 2022; 2026 runs to the date of the MSHA files.
| Year | Citations and orders | Significant and substantial | Proposed penalties | Injury and illness cases |
|---|---|---|---|---|
| 2022 | 57 | 12 | $36,847 | 3 |
| 2023 | 43 | 2 | $10,656 | 2 |
| 2024 | 37 | 2 | $14,729 | 4 |
| 2025 | 42 | 4 | $11,954 | 3 |
| 2026 | 43 | 4 | $8,850 | 4 |
Standards cited most at mines in Lexington County, South Carolina
Sections of Title 30 of the Code of Federal Regulations named on the citations, with the part each belongs to.
| Standard | What the part covers | Citations |
|---|---|---|
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 22 |
| 30 CFR 56.20003 | Surface metal and nonmetal mines | 19 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 17 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 15 |
| 30 CFR 56.11001 | Surface metal and nonmetal mines | 11 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 11 |
| 30 CFR 50.30 | Reporting of accidents, injuries and illnesses | 10 |
| 30 CFR 56.14132 | Surface metal and nonmetal mines | 9 |
| 30 CFR 56.5001 | Surface metal and nonmetal mines | 9 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 8 |
| 30 CFR 56.4201 | Surface metal and nonmetal mines | 7 |
| 30 CFR 56.9300 | Surface metal and nonmetal mines | 5 |
| 30 CFR 56.14101 | Surface metal and nonmetal mines | 5 |
| 30 CFR 56.12018 | Surface metal and nonmetal mines | 4 |
| 30 CFR 56.18002 | Surface metal and nonmetal mines | 4 |
Injury and illness cases at mines in Lexington County, South Carolina
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Days away from work or restricted activity | 12 |
| No lost time, or an occupational illness | 4 |
What the accident reports at mines in Lexington County, South Carolina describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Handling of materials | 11 |
| Fire | 2 |
| Machinery | 1 |
| Slip or fall of person | 1 |
| Powered haulage | 1 |
| Stepping or kneeling on object | 1 |
| Disorders (physical agents) | 1 |
Equipment named in accident reports at mines in Lexington County, South Carolina
| Equipment | Reports |
|---|---|
| Front-end loader | 3 |
| Crusher | 1 |
| Conveyor | 1 |
US government work, public domain. Counts come from the MSHA files published on November 6, 2026. An open mine is one MSHA lists as Active, Intermittent, New Mine, Temporarily Idled or NonProducing; 13,673 were open that day. Citations, penalties, inspections and accident reports run from January 1, 2022. A citation is an inspector's allegation and an operator can contest it; the penalty is the amount MSHA first proposed, before any contest or settlement. An operator is the legal entity MSHA assesses, and a parent company is its controller. Mines run by sole proprietors or by individuals are counted in every total and are not named. This page uses MSHA data and is not endorsed or certified by MSHA. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.