Data / Mines / South Carolina / Stone mines
Stone mines in South Carolina: 46 open mines
MSHA lists 46 open stone mines in South Carolina, run by 19 operators and employing 1,071 people. Since January 1, 2022 its inspectors issued 1,684 citations and orders there with $2,930,678 in proposed penalties, and operators reported 127 injury or illness cases, 1 of them fatal. The operators with the most open mines are Vulcan Construction Materials, LLC; Heidelberg Materials Southeast Agg., LLC; Martin Marietta Materials, Inc.. Data from MSHA, November 6, 2026.
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- Open mines
- 46
- Operators
- 19
- Employees
- 1,071
- Active
- 44
- Intermittent
- 2
- Citations and orders since January 1, 2022
- 1,684
- Significant and substantial
- 261 (15.5%)
- Closure orders
- 35
- High negligence or reckless
- 171
- Proposed penalties
- $2,930,678
- Amount paid so far
- $1,811,843
- Inspections
- 696
- Inspector hours on site
- 11,154
- Citations per inspection
- 2.42 (all mines 2.30)
- Accident reports
- 144
- Injury and illness cases
- 127
- Fatalities
- 1
- Latest MSHA record
- October 30, 2026
Operators with the most open mines in 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 |
|---|---|---|---|---|---|
| Vulcan Construction Materials, LLC | 14 | 236 | 94 | $21,927 | 34 |
| Heidelberg Materials Southeast Agg., LLC | 6 | 71 | 97 | $21,886 | 10 |
| Martin Marietta Materials, Inc. | 6 | 100 | 97 | $19,940 | 7 |
| Chesapeake Materials (division/Luck Stone Corp.) | 3 | 20 | 11 | $3,716 | 1 |
| Georgia Stone Management LLC | 2 | 2 | 15 | $2,250 | 0 |
| H.B. Mellott Estate, Inc. | 2 | 4 | 9 | $1,070 | 0 |
| Holcim (US) Incorporated | 1 | 176 | 480 | $1,327,569 | 21 |
| Heildelberg Materials | 1 | 183 | 411 | $1,151,628 | 35 |
| Quikrete Construction Materials, LLC | 1 | 130 | 252 | $284,965 | 11 |
| SC Rock, LLC | 1 | 12 | 67 | $36,202 | 0 |
| Reeves Construction Company | 1 | 17 | 31 | $5,055 | 0 |
| Lopke Quarries Inc | 1 | 7 | 29 | $36,089 | 1 |
| Oconee County | 1 | 23 | 28 | $6,225 | 2 |
| Inman Stone Company Inc | 1 | 14 | 21 | $3,975 | 2 |
| Bluegrass Materials Company, LLC | 1 | 10 | 20 | $4,259 | 1 |
| American Materials Company,LLC | 1 | 1 | 11 | $2,241 | 0 |
| Georgia Stone Products LLC | 1 | 32 | 8 | $1,254 | 1 |
| G & G Mining Co LLC | 1 | 4 | 2 | $294 | 0 |
| Wake Stone Corp | 1 | 29 | 1 | $133 | 1 |
Operators with the most citations in 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 |
|---|---|---|---|---|---|
| Holcim (US) Incorporated | 1 | 176 | 480 | $1,327,569 | 21 |
| Heildelberg Materials | 1 | 183 | 411 | $1,151,628 | 35 |
| Quikrete Construction Materials, LLC | 1 | 130 | 252 | $284,965 | 11 |
| Heidelberg Materials Southeast Agg., LLC | 6 | 71 | 97 | $21,886 | 10 |
| Martin Marietta Materials, Inc. | 6 | 100 | 97 | $19,940 | 7 |
| Vulcan Construction Materials, LLC | 14 | 236 | 94 | $21,927 | 34 |
| SC Rock, LLC | 1 | 12 | 67 | $36,202 | 0 |
| Reeves Construction Company | 1 | 17 | 31 | $5,055 | 0 |
| Lopke Quarries Inc | 1 | 7 | 29 | $36,089 | 1 |
| Oconee County | 1 | 23 | 28 | $6,225 | 2 |
| Inman Stone Company Inc | 1 | 14 | 21 | $3,975 | 2 |
| Bluegrass Materials Company, LLC | 1 | 10 | 20 | $4,259 | 1 |
| Georgia Stone Management LLC | 2 | 2 | 15 | $2,250 | 0 |
| Chesapeake Materials (division/Luck Stone Corp.) | 3 | 20 | 11 | $3,716 | 1 |
| American Materials Company,LLC | 1 | 1 | 11 | $2,241 | 0 |
| H.B. Mellott Estate, Inc. | 2 | 4 | 9 | $1,070 | 0 |
| Georgia Stone Products LLC | 1 | 32 | 8 | $1,254 | 1 |
| G & G Mining Co LLC | 1 | 4 | 2 | $294 | 0 |
| Wake Stone Corp | 1 | 29 | 1 | $133 | 1 |
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 |
|---|---|---|---|---|---|
| Amrize Holly Hill Plant | Holcim (US) Incorporated | Orangeburg County, SC | Cement | 176 | 480 |
| HM Southeast Cement | Heildelberg Materials | Dorchester County, SC | Cement | 183 | 411 |
| Harleyville Mine & Plant | Quikrete Construction Materials, LLC | Dorchester County, SC | Cement | 130 | 252 |
| Goretown Mine | SC Rock, LLC | Horry County, SC | Crushed, broken limestone | 12 | 67 |
| Sandy Flat Quarry | Heidelberg Materials Southeast Agg., LLC | Greenville County, SC | Crushed, broken granite | 17 | 40 |
| Cayce Quarry | Martin Marietta Materials, Inc. | Lexington County, SC | Crushed, broken granite | 27 | 32 |
| Blacksburg Quarry | Reeves Construction Company | Cherokee County, SC | Crushed, broken granite | 17 | 31 |
| Lopke Quarries : Clinton, SC Plant | Lopke Quarries Inc | Laurens County, SC | Crushed, broken granite | 7 | 29 |
| Oconee Rock Quarry | Oconee County | Oconee County, SC | Crushed, broken stone | 23 | 28 |
| Columbia Quarry | Vulcan Construction Materials, LLC | Richland County, SC | Crushed, broken granite | 34 | 22 |
| Inman Stone Company | Inman Stone Company Inc | Spartanburg County, SC | Crushed, broken stone | 14 | 21 |
| Edgefield Quarry | Bluegrass Materials Company, LLC | Edgefield County, SC | Crushed, broken granite | 10 | 20 |
| Anderson Quarry | Heidelberg Materials Southeast Agg., LLC | Anderson County, SC | Crushed, broken granite | 9 | 19 |
| North Columbia Quarry | Martin Marietta Materials, Inc. | Richland County, SC | Crushed, broken granite | 18 | 18 |
| Lowrys Quarry | Heidelberg Materials Southeast Agg., LLC | York County, SC | Crushed, broken granite | 11 | 17 |
| Berkeley Quarry | Martin Marietta Materials, Inc. | Berkeley County, SC | Crushed, broken limestone | 23 | 16 |
| Rock Hill Quarry | Martin Marietta Materials, Inc. | York County, SC | Crushed, broken granite | 14 | 16 |
| Georgetown II Quarry | Martin Marietta Materials, Inc. | Berkeley County, SC | Crushed, broken limestone | 15 | 15 |
| Dreyfus Quarry | Vulcan Construction Materials, LLC | Richland County, SC | Crushed, broken granite | 12 | 14 |
| Kershaw Pink | Georgia Stone Management LLC | Kershaw County, SC | Crushed, broken granite | 1 | 14 |
| Pacolet Quarry | Vulcan Construction Materials, LLC | Spartanburg County, SC | Crushed, broken granite | 23 | 12 |
| Lyman Quarry | Vulcan Construction Materials, LLC | Spartanburg County, SC | Crushed, broken granite | 31 | 11 |
| Lakeside Quarry | Vulcan Construction Materials, LLC | Greenville County, SC | Crushed, broken granite | 19 | 11 |
| Andrews Quarry | American Materials Company,LLC | Williamsburg County, SC | Dimension limestone | 1 | 11 |
| Jefferson Quarry | Heidelberg Materials Southeast Agg., LLC | Chesterfield County, SC | Crushed, broken granite | 22 | 10 |
| Anderson Quarry | Vulcan Construction Materials, LLC | Anderson County, SC | Crushed, broken granite | 18 | 9 |
| Georgia Stone, Buckhorn Plant | Georgia Stone Products LLC | Chesterfield County, SC | Crushed, broken granite | 32 | 8 |
| C120-004 | H.B. Mellott Estate, Inc. | Kershaw County, SC | Crushed, broken granite | 2 | 7 |
| Pelham Quarry | Heidelberg Materials Southeast Agg., LLC | Spartanburg County, SC | Crushed, broken granite | 4 | 6 |
| Kershaw Plant | Chesapeake Materials (division/Luck Stone Corp.) | Kershaw County, SC | Crushed, broken granite | 4 | 6 |
| Liberty Quarry | Vulcan Construction Materials, LLC | Pickens County, SC | Crushed, broken granite | 19 | 5 |
| Clinton Quarry | Heidelberg Materials Southeast Agg., LLC | Laurens County, SC | Crushed, broken granite | 8 | 5 |
| Blacksburg Quarry | Vulcan Construction Materials, LLC | Cherokee County, SC | Crushed, broken limestone | 11 | 4 |
| Gray Court Quarry | Vulcan Construction Materials, LLC | Laurens County, SC | Crushed, broken granite | 16 | 3 |
| Enoree Plant | Chesapeake Materials (division/Luck Stone Corp.) | Spartanburg County, SC | Crushed, broken granite | 10 | 3 |
| Fairfield Plant | Chesapeake Materials (division/Luck Stone Corp.) | Fairfield County, SC | Crushed, broken granite | 6 | 2 |
| G & G Mining Co LLC | G & G Mining Co LLC | Horry County, SC | Crushed, broken limestone | 4 | 2 |
| Mellott-Luck Stone Enoree | H.B. Mellott Estate, Inc. | Spartanburg County, SC | Crushed, broken granite | 2 | 2 |
| North Myrtle Beach Quarry | Wake Stone Corp | Horry County, SC | Crushed, broken stone | 29 | 1 |
| Lexington Quarry | Vulcan Construction Materials, LLC | Lexington County, SC | Crushed, broken granite | 12 | 1 |
| Blair Quarry | Vulcan Construction Materials, LLC | Fairfield County, SC | Crushed, broken granite | 6 | 1 |
| Charleston Ship Yard | Vulcan Construction Materials, LLC | Charleston County, SC | Crushed, broken granite | 3 | 1 |
| Coral Gray Quarry | Georgia Stone Management LLC | Lancaster County, SC | Dimension stone | 1 | 1 |
| Greenwood Quarry | Vulcan Construction Materials, LLC | Greenwood County, SC | Crushed, broken granite | 18 | 0 |
| Cross Quarry | Vulcan Construction Materials, LLC | Orangeburg County, SC | Crushed, broken granite | 14 | 0 |
| Chesterfield Quarry | Martin Marietta Materials, Inc. | Chesterfield County, SC | Crushed, broken stone | 3 | 0 |
Main commodities
| Main commodity | Open mines | Share |
|---|---|---|
| Crushed, broken granite | 32 | 69.6% |
| Crushed, broken limestone | 5 | 10.9% |
| Crushed, broken stone | 4 | 8.7% |
| Cement | 3 | 6.5% |
| Dimension stone | 1 | 2.2% |
| Dimension limestone | 1 | 2.2% |
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 | 439 | 70 | $532,368 | 28 |
| 2023 | 432 | 85 | $809,501 | 26 |
| 2024 | 391 | 47 | $796,430 | 27 |
| 2025 | 229 | 35 | $516,388 | 18 |
| 2026 | 193 | 24 | $275,991 | 28 |
Standards cited most at stone mines in 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 56.20003 | Surface metal and nonmetal mines | 276 |
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 184 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 130 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 103 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 94 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 52 |
| 30 CFR 56.11001 | Surface metal and nonmetal mines | 51 |
| 30 CFR 56.14101 | Surface metal and nonmetal mines | 42 |
| 30 CFR 56.14207 | Surface metal and nonmetal mines | 42 |
| 30 CFR 56.4201 | Surface metal and nonmetal mines | 39 |
| 30 CFR 56.11002 | Surface metal and nonmetal mines | 38 |
| 30 CFR 56.12018 | Surface metal and nonmetal mines | 34 |
| 30 CFR 56.12008 | Surface metal and nonmetal mines | 30 |
| 30 CFR 56.18002 | Surface metal and nonmetal mines | 29 |
| 30 CFR 56.17001 | Surface metal and nonmetal mines | 29 |
Injury and illness cases at stone mines in South Carolina
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Fatality | 1 |
| Permanent disability | 2 |
| Days away from work or restricted activity | 85 |
| No lost time, or an occupational illness | 39 |
What the accident reports at stone mines in South Carolina describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Handling of materials | 57 |
| Slip or fall of person | 28 |
| Machinery | 14 |
| Handtools (nonpowered) | 12 |
| Fire | 11 |
| Powered haulage | 7 |
| Striking or bumping | 3 |
| Stepping or kneeling on object | 3 |
| Exploding vessels under pressure | 2 |
| Entrapment | 2 |
Equipment named in accident reports at stone mines in South Carolina
| Equipment | Reports |
|---|---|
| Hand tools (not powered) | 12 |
| Hand tools (powered) | 6 |
| Milling machinery | 5 |
| Conveyor | 5 |
| Ore haulage trucks - off highway trucks | 4 |
| Welding machine | 3 |
| Crusher | 3 |
| Front-end loader | 3 |
| Carriage-mounted drills | 2 |
| Machine | 2 |
Updated November 6, 2026. Read from US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets. 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.