Data / Mines / Missouri / Jefferson County
Mines in Jefferson County, Missouri: 15 open mines
MSHA lists 15 open mines in Jefferson County, Missouri, run by 8 operators and employing 300 people. Since January 1, 2022 its inspectors issued 500 citations and orders there with $354,184 in proposed penalties, and operators reported 65 injury or illness cases. The operators with the most open mines are Central Stone Company; Martin Marietta Materials, Inc.; H Sand & Gravel. Data from MSHA, November 6, 2026.
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- Open mines
- 15
- Operators
- 8
- Employees
- 300
- Active
- 13
- Intermittent
- 2
- Citations and orders since January 1, 2022
- 500
- Significant and substantial
- 80 (16.0%)
- Closure orders
- 8
- High negligence or reckless
- 40
- Proposed penalties
- $354,184
- Amount paid so far
- $348,571
- Inspections
- 233
- Inspector hours on site
- 2,579
- Citations per inspection
- 2.15 (all mines 2.30)
- Accident reports
- 66
- Injury and illness cases
- 65
- Fatalities
- 0
- Latest MSHA record
- November 4, 2026
Operators with the most open mines in Jefferson County, Missouri
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 |
|---|---|---|---|---|---|
| Central Stone Company | 5 | 53 | 58 | $9,069 | 7 |
| Martin Marietta Materials, Inc. | 3 | 52 | 51 | $12,106 | 4 |
| H Sand & Gravel | 2 | 13 | 7 | $3,761 | 0 |
| River Cement Company DBA Buzzi Unicem USA | 1 | 150 | 324 | $318,425 | 51 |
| BMC Sand LLC | 1 | 4 | 19 | $4,228 | 0 |
| Arch Johnston Paving & Quarry Company Inc | 1 | 17 | 18 | $3,258 | 0 |
| Covia Solutions LLC | 1 | 10 | 16 | $2,330 | 1 |
| Fred Weber, Inc. | 1 | 1 | 7 | $1,007 | 2 |
Operators with the most citations in Jefferson County, Missouri
Citations and orders issued since January 1, 2022 at their open mines here.
| Operator | Open mines | Employees | Citations since 2022 | Proposed penalties | Injury cases |
|---|---|---|---|---|---|
| River Cement Company DBA Buzzi Unicem USA | 1 | 150 | 324 | $318,425 | 51 |
| Central Stone Company | 5 | 53 | 58 | $9,069 | 7 |
| Martin Marietta Materials, Inc. | 3 | 52 | 51 | $12,106 | 4 |
| BMC Sand LLC | 1 | 4 | 19 | $4,228 | 0 |
| Arch Johnston Paving & Quarry Company Inc | 1 | 17 | 18 | $3,258 | 0 |
| Covia Solutions LLC | 1 | 10 | 16 | $2,330 | 1 |
| H Sand & Gravel | 2 | 13 | 7 | $3,761 | 0 |
| Fred Weber, Inc. | 1 | 1 | 7 | $1,007 | 2 |
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 |
|---|---|---|---|---|---|
| Selma Plant Quarry & Mill | River Cement Company DBA Buzzi Unicem USA | Jefferson County, MO | Cement | 150 | 324 |
| Barnhart Quarry | Martin Marietta Materials, Inc. | Jefferson County, MO | Crushed, broken limestone | 32 | 43 |
| Antire Quarry (CS-72) | Central Stone Company | Jefferson County, MO | Crushed, broken limestone | 25 | 27 |
| BMC Sand Eureka Plant | BMC Sand LLC | Jefferson County, MO | Construction sand and gravel | 4 | 19 |
| Cedar Springs Quarry | Arch Johnston Paving & Quarry Company Inc | Jefferson County, MO | Crushed, broken limestone | 17 | 18 |
| Pevely Plant | Covia Solutions LLC | Jefferson County, MO | Sand, industrial | 10 | 16 |
| Antonia (CS56) | Central Stone Company | Jefferson County, MO | Crushed, broken limestone | 10 | 10 |
| Trautman Quarry (CS-74) | Central Stone Company | Jefferson County, MO | Crushed, broken limestone | 8 | 10 |
| House Springs Quarry (CS-73) | Central Stone Company | Jefferson County, MO | Crushed, broken limestone | 5 | 10 |
| Festus Underground | Fred Weber, Inc. | Jefferson County, MO | Sand, industrial | 1 | 7 |
| Fast Pack 2 Portable 2 | Martin Marietta Materials, Inc. | Jefferson County, MO | Crushed, broken limestone | 15 | 6 |
| Plant 5 / Smreker Supply | H Sand & Gravel | Jefferson County, MO | Sand, industrial | 4 | 4 |
| H Sand & Gravel | H Sand & Gravel | Jefferson County, MO | Construction sand and gravel | 9 | 3 |
| South Portable Plant | Martin Marietta Materials, Inc. | Jefferson County, MO | Crushed, broken limestone | 5 | 2 |
| Morse Mill Quarry #60 | Central Stone Company | Jefferson County, MO | Crushed, broken limestone | 5 | 1 |
Main commodities
| Main commodity | Open mines | Share |
|---|---|---|
| Crushed, broken limestone | 9 | 60% |
| Sand, industrial | 3 | 20% |
| Construction sand and gravel | 2 | 13.3% |
| Cement | 1 | 6.7% |
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 | 90 | 25 | $182,071 | 12 |
| 2023 | 147 | 22 | $58,861 | 12 |
| 2024 | 110 | 10 | $40,814 | 17 |
| 2025 | 73 | 7 | $52,280 | 14 |
| 2026 | 80 | 16 | $20,158 | 10 |
Standards cited most at mines in Jefferson County, Missouri
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 | 57 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 51 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 48 |
| 30 CFR 56.12028 | Surface metal and nonmetal mines | 37 |
| 30 CFR 56.11001 | Surface metal and nonmetal mines | 22 |
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 19 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 15 |
| 30 CFR 56.12030 | Surface metal and nonmetal mines | 14 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 11 |
| 30 CFR 56.4102 | Surface metal and nonmetal mines | 9 |
| 30 CFR 56.12008 | Surface metal and nonmetal mines | 8 |
| 30 CFR 56.17001 | Surface metal and nonmetal mines | 8 |
| 30 CFR 56.14207 | Surface metal and nonmetal mines | 7 |
| 30 CFR 56.9300 | Surface metal and nonmetal mines | 7 |
| 30 CFR 56.14132 | Surface metal and nonmetal mines | 7 |
Injury and illness cases at mines in Jefferson County, Missouri
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Days away from work or restricted activity | 48 |
| No lost time, or an occupational illness | 17 |
What the accident reports at mines in Jefferson County, Missouri describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Handling of materials | 26 |
| Slip or fall of person | 12 |
| Handtools (nonpowered) | 9 |
| Machinery | 9 |
| Disorders (repeated trauma) | 3 |
| Powered haulage | 2 |
| Explosives and breaking agents | 1 |
| All other occupational illnesses | 1 |
| Stepping or kneeling on object | 1 |
| Other | 1 |
Equipment named in accident reports at mines in Jefferson County, Missouri
| Equipment | Reports |
|---|---|
| Hand tools (not powered) | 9 |
| Hand tools (powered) | 5 |
| Front-end loader | 3 |
| Milling machinery | 3 |
| Raw coal storage | 1 |
| Man lift | 1 |
| Hoist | 1 |
| Bulldozer | 1 |
| Trucks | 1 |
| Blow pipe | 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.