Data / Mines / Tennessee / Nonmetal mines
Nonmetal mineral mines in Tennessee: 23 open mines
MSHA lists 23 open nonmetal mineral mines in Tennessee, run by 18 operators and employing 291 people. Since January 1, 2022 its inspectors issued 192 citations and orders there with $89,685 in proposed penalties, and operators reported 14 injury or illness cases. The operators with the most open mines are Martin Marietta Materials, Inc.; U.S. Silica Company, LLC; Tennessee Aggregates LLC. Data from MSHA, November 6, 2026.
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- Open mines
- 23
- Operators
- 18
- Employees
- 291
- Active
- 18
- Intermittent
- 3
- Temporarily Idled
- 2
- Mines run by individuals, counted and not listed
- 2
- Citations and orders since January 1, 2022
- 192
- Significant and substantial
- 47 (24.5%)
- Closure orders
- 5
- High negligence or reckless
- 14
- Proposed penalties
- $89,685
- Amount paid so far
- $85,155
- Inspections
- 197
- Inspector hours on site
- 1,897
- Citations per inspection
- 0.97 (all mines 2.30)
- Accident reports
- 15
- Injury and illness cases
- 14
- Fatalities
- 0
- Latest MSHA record
- November 4, 2026
Operators with the most open mines in Tennessee
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 |
|---|---|---|---|---|---|
| Martin Marietta Materials, Inc. | 2 | 32 | 37 | $8,718 | 6 |
| U.S. Silica Company, LLC | 2 | 107 | 25 | $7,114 | 3 |
| Tennessee Aggregates LLC | 2 | 10 | 9 | $463 | 0 |
| General Shale Brick, Inc. | 2 | 6 | 6 | $854 | 0 |
| Kentucky Tennessee Clay Company | 1 | 50 | 58 | $58,515 | 2 |
| Old Hickory Clay Company | 1 | 13 | 15 | $2,389 | 1 |
| Gleason Clay Company LLC | 1 | 31 | 14 | $2,016 | 1 |
| Cimbar Resources | 1 | 10 | 5 | $1,308 | 0 |
| Smith Constructors Inc | 1 | 0 | 4 | $610 | 0 |
| Usb Tennessee, LLC | 1 | 2 | 4 | $532 | 0 |
| LM Rock & Dirt Co. | 1 | 2 | 3 | $745 | 0 |
| Saltillo Sand and Gravel Inc | 1 | 5 | 3 | $1,163 | 0 |
| Teague Transports LLC | 1 | 5 | 3 | $435 | 1 |
| Barkers Enterprises, LLC | 1 | 8 | 2 | $4,529 | 0 |
| Baker's Construction Services, Inc. | 1 | 2 | 1 | $151 | 0 |
| Walker's Rock | 1 | 2 | 1 | $143 | 0 |
| Buzzi Unicem USA | 1 | 3 | 0 | $0 | 0 |
Operators with the most citations in Tennessee
Citations and orders issued since January 1, 2022 at their open mines here.
| Operator | Open mines | Employees | Citations since 2022 | Proposed penalties | Injury cases |
|---|---|---|---|---|---|
| Kentucky Tennessee Clay Company | 1 | 50 | 58 | $58,515 | 2 |
| Martin Marietta Materials, Inc. | 2 | 32 | 37 | $8,718 | 6 |
| U.S. Silica Company, LLC | 2 | 107 | 25 | $7,114 | 3 |
| Old Hickory Clay Company | 1 | 13 | 15 | $2,389 | 1 |
| Gleason Clay Company LLC | 1 | 31 | 14 | $2,016 | 1 |
| Tennessee Aggregates LLC | 2 | 10 | 9 | $463 | 0 |
| General Shale Brick, Inc. | 2 | 6 | 6 | $854 | 0 |
| Cimbar Resources | 1 | 10 | 5 | $1,308 | 0 |
| Smith Constructors Inc | 1 | 0 | 4 | $610 | 0 |
| Usb Tennessee, LLC | 1 | 2 | 4 | $532 | 0 |
| LM Rock & Dirt Co. | 1 | 2 | 3 | $745 | 0 |
| Saltillo Sand and Gravel Inc | 1 | 5 | 3 | $1,163 | 0 |
| Teague Transports LLC | 1 | 5 | 3 | $435 | 1 |
| Barkers Enterprises, LLC | 1 | 8 | 2 | $4,529 | 0 |
| Baker's Construction Services, Inc. | 1 | 2 | 1 | $151 | 0 |
| Walker's Rock | 1 | 2 | 1 | $143 | 0 |
| Buzzi Unicem USA | 1 | 3 | 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 |
|---|---|---|---|---|---|
| Gleason Mills and Mines | Kentucky Tennessee Clay Company | Weakley County, TN | Common clays | 50 | 58 |
| Middleton Operations | U.S. Silica Company, LLC | Hardeman County, TN | Common clays | 90 | 25 |
| Gleason Mills & Mines | Martin Marietta Materials, Inc. | Weakley County, TN | Common clays | 18 | 22 |
| Henry County Mines & Mill | Martin Marietta Materials, Inc. | Henry County, TN | Common clays | 14 | 15 |
| Gleason Clay Mill | Old Hickory Clay Company | Weakley County, TN | Common clays | 13 | 15 |
| Weakley County Operations | Gleason Clay Company LLC | Weakley County, TN | Common clays | 31 | 14 |
| Hampton Stone | Tennessee Aggregates LLC | Carter County, TN | Quartz, crystal | 6 | 6 |
| Dyersburg Plant | Cimbar Resources | Dyer County, TN | Barite barium ore | 10 | 5 |
| Kitty Hollow-Plant | General Shale Brick, Inc. | Rhea County, TN | Clay, ceramic, refractory mnls. | 3 | 5 |
| Collins and Rich Pits | Usb Tennessee, LLC | Weakley County, TN | Common clays | 2 | 4 |
| Rockvale | Smith Constructors Inc | Rutherford County, TN | Quartz, ground | 0 | 4 |
| Teague Transports, LLC Airways | Teague Transports LLC | Madison County, TN | Sand, industrial | 5 | 3 |
| Saltillo Sand and Gravel | Saltillo Sand and Gravel Inc | Hardin County, TN | Sand, industrial | 5 | 3 |
| Erwin Stone | Tennessee Aggregates LLC | Unicoi County, TN | Misc. nonmetallic mnls. | 4 | 3 |
| Wolfe Property | LM Rock & Dirt Co. | Sullivan County, TN | Shell | 2 | 3 |
| Barker Mine 1 | Barkers Enterprises, LLC | Carter County, TN | Common shale | 8 | 2 |
| Kitty Hollow South | General Shale Brick, Inc. | Rhea County, TN | Shell | 3 | 1 |
| Walker's Dirt Pit | Walker's Rock | Knox County, TN | Clay, ceramic, refractory mnls. | 2 | 1 |
| 394 Shale | Baker's Construction Services, Inc. | Sullivan County, TN | Common shale | 2 | 1 |
| Jackson Plant | U.S. Silica Company, LLC | Madison County, TN | Sand, industrial | 17 | 0 |
| Thurman Mine | Buzzi Unicem USA | Marion County, TN | Common shale | 3 | 0 |
Main commodities
| Main commodity | Open mines | Share |
|---|---|---|
| Common clays | 7 | 30.4% |
| Common shale | 4 | 17.4% |
| Sand, industrial | 3 | 13% |
| Shell | 3 | 13% |
| Clay, ceramic, refractory mnls. | 2 | 8.7% |
| Barite barium ore | 1 | 4.3% |
| Quartz, crystal | 1 | 4.3% |
| Quartz, ground | 1 | 4.3% |
| Misc. nonmetallic mnls. | 1 | 4.3% |
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 | 47 | 8 | $12,763 | 5 |
| 2023 | 29 | 6 | $6,515 | 3 |
| 2024 | 38 | 5 | $6,935 | 2 |
| 2025 | 38 | 11 | $32,677 | 2 |
| 2026 | 40 | 17 | $30,795 | 2 |
Standards cited most at nonmetal mineral mines in Tennessee
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 | 22 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 15 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 13 |
| 30 CFR 56.5001 | Surface metal and nonmetal mines | 11 |
| 30 CFR 50.30 | Reporting of accidents, injuries and illnesses | 11 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 9 |
| 30 CFR 56.12028 | Surface metal and nonmetal mines | 8 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 8 |
| 30 CFR 47.44 | Hazard communication | 7 |
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 7 |
| 30 CFR 56.14132 | Surface metal and nonmetal mines | 5 |
| 30 CFR 56.12018 | Surface metal and nonmetal mines | 5 |
| 30 CFR 56.12008 | Surface metal and nonmetal mines | 4 |
| 30 CFR 46.5 | Training at sand, gravel and surface stone mines | 4 |
| 30 CFR 56.12025 | Surface metal and nonmetal mines | 3 |
Injury and illness cases at nonmetal mineral mines in Tennessee
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Days away from work or restricted activity | 9 |
| No lost time, or an occupational illness | 5 |
What the accident reports at nonmetal mineral mines in Tennessee describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Slip or fall of person | 5 |
| Handling of materials | 4 |
| Machinery | 3 |
| Other | 2 |
| Disorders (physical agents) | 1 |
Equipment named in accident reports at nonmetal mineral mines in Tennessee
| Equipment | Reports |
|---|---|
| Ore haulage trucks - off highway trucks | 2 |
| Hand tools (powered) | 2 |
| Hoist | 1 |
| Forklift | 1 |
| Shovel | 1 |
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.