Data / Mines / Missouri / Nonmetal mines
Nonmetal mineral mines in Missouri: 25 open mines
MSHA lists 25 open nonmetal mineral mines in Missouri, run by 23 operators and employing 745 people. Since January 1, 2022 its inspectors issued 756 citations and orders there with $385,294 in proposed penalties, and operators reported 55 injury or illness cases. The operators with the most open mines are American Tripoli; U.S. Silica Company, LLC; Nestle Purina PetCare Company. Data from MSHA, November 6, 2026.
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- Open mines
- 25
- Operators
- 23
- Employees
- 745
- Active
- 19
- Intermittent
- 5
- Temporarily Idled
- 1
- Mines run by individuals, counted and not listed
- 3
- Citations and orders since January 1, 2022
- 756
- Significant and substantial
- 138 (18.3%)
- Closure orders
- 38
- High negligence or reckless
- 87
- Proposed penalties
- $385,294
- Amount paid so far
- $172,328
- Inspections
- 350
- Inspector hours on site
- 3,316
- Citations per inspection
- 2.16 (all mines 2.30)
- Accident reports
- 59
- Injury and illness cases
- 55
- Fatalities
- 0
- Latest MSHA record
- November 4, 2026
Operators with the most open mines in 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 |
|---|---|---|---|---|---|
| American Tripoli | 1 | 0 | 227 | $201,577 | 1 |
| U.S. Silica Company, LLC | 1 | 41 | 109 | $55,130 | 5 |
| Nestle Purina PetCare Company | 1 | 520 | 75 | $26,727 | 20 |
| Christy Minerals LLC | 1 | 35 | 69 | $30,886 | 8 |
| Martin Marietta Materials, Inc. | 1 | 26 | 38 | $15,249 | 5 |
| Mid Mo Mining LLC | 1 | 11 | 32 | $7,435 | 1 |
| BMC Sand LLC | 1 | 4 | 24 | $6,041 | 0 |
| Hermann Sand & Gravel Inc | 1 | 1 | 24 | $5,963 | 0 |
| Covia Solutions LLC | 1 | 10 | 16 | $2,330 | 1 |
| Holliday Sand & Gravel Company, Inc. | 1 | 14 | 11 | $1,803 | 4 |
| BT Minerals LLC | 1 | 3 | 9 | $1,315 | 0 |
| Dillon Clay Mine LLC | 1 | 4 | 9 | $1,319 | 0 |
| Osage Fire Clay LLC | 1 | 4 | 9 | $1,546 | 0 |
| Pits Dozing Inc | 1 | 4 | 8 | $2,720 | 0 |
| Fred Weber, Inc. | 1 | 1 | 7 | $1,007 | 2 |
| 4-E Sand & Gravel | 1 | 2 | 6 | $854 | 0 |
| Continental Cement Company, LLC | 1 | 3 | 6 | $884 | 0 |
| H Sand & Gravel | 1 | 4 | 4 | $3,324 | 0 |
| Viking Aggregates, Inc. | 1 | 5 | 3 | $431 | 0 |
| Scego Trucking, Inc | 1 | 3 | 2 | $298 | 0 |
| MLH Excavation, LLC | 1 | 1 | 1 | $133 | 0 |
| Capital Sand Company, Inc. | 1 | 3 | 0 | $0 | 0 |
Operators with the most citations in 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 |
|---|---|---|---|---|---|
| American Tripoli | 1 | 0 | 227 | $201,577 | 1 |
| U.S. Silica Company, LLC | 1 | 41 | 109 | $55,130 | 5 |
| Nestle Purina PetCare Company | 1 | 520 | 75 | $26,727 | 20 |
| Christy Minerals LLC | 1 | 35 | 69 | $30,886 | 8 |
| Martin Marietta Materials, Inc. | 1 | 26 | 38 | $15,249 | 5 |
| Mid Mo Mining LLC | 1 | 11 | 32 | $7,435 | 1 |
| BMC Sand LLC | 1 | 4 | 24 | $6,041 | 0 |
| Hermann Sand & Gravel Inc | 1 | 1 | 24 | $5,963 | 0 |
| Covia Solutions LLC | 1 | 10 | 16 | $2,330 | 1 |
| Holliday Sand & Gravel Company, Inc. | 1 | 14 | 11 | $1,803 | 4 |
| BT Minerals LLC | 1 | 3 | 9 | $1,315 | 0 |
| Dillon Clay Mine LLC | 1 | 4 | 9 | $1,319 | 0 |
| Osage Fire Clay LLC | 1 | 4 | 9 | $1,546 | 0 |
| Pits Dozing Inc | 1 | 4 | 8 | $2,720 | 0 |
| Fred Weber, Inc. | 1 | 1 | 7 | $1,007 | 2 |
| 4-E Sand & Gravel | 1 | 2 | 6 | $854 | 0 |
| Continental Cement Company, LLC | 1 | 3 | 6 | $884 | 0 |
| H Sand & Gravel | 1 | 4 | 4 | $3,324 | 0 |
| Viking Aggregates, Inc. | 1 | 5 | 3 | $431 | 0 |
| Scego Trucking, Inc | 1 | 3 | 2 | $298 | 0 |
| MLH Excavation, LLC | 1 | 1 | 1 | $133 | 0 |
| Capital Sand Company, Inc. | 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 |
|---|---|---|---|---|---|
| MOSenecaMfr LLC DBA American Tr | American Tripoli | Newton County, MO | Tripoli | 0 | 227 |
| Pacific Plant | U.S. Silica Company, LLC | St Louis County, MO | Quartz, ground | 41 | 109 |
| Bloomfield Plant | Nestle Purina PetCare Company | Stoddard County, MO | Common clays | 520 | 75 |
| Christy Minerals Plant | Christy Minerals LLC | Montgomery County, MO | Clay, ceramic, refractory mnls. | 35 | 69 |
| Buildex | Martin Marietta Materials, Inc. | Platte County, MO | Common shale | 26 | 38 |
| Mid MO Mining LLC | Mid Mo Mining LLC | Callaway County, MO | Fire clay | 11 | 32 |
| BMC Sand, Old Monroe | BMC Sand LLC | Lincoln County, MO | Sand, industrial | 4 | 24 |
| Hermann Sand-Jefferson City Plant | Hermann Sand & Gravel Inc | Callaway County, MO | Sand, industrial | 1 | 24 |
| Pevely Plant | Covia Solutions LLC | Jefferson County, MO | Sand, industrial | 10 | 16 |
| Randolph Plant #9 | Holliday Sand & Gravel Company, Inc. | Clay County, MO | Sand, industrial | 14 | 11 |
| D C Mining | Dillon Clay Mine LLC | Phelps County, MO | Clay, ceramic, refractory mnls. | 4 | 9 |
| George | Osage Fire Clay LLC | Gasconade County, MO | Fire clay | 4 | 9 |
| Motley | BT Minerals LLC | Pike County, MO | Clay, ceramic, refractory mnls. | 3 | 9 |
| Johnson Pit | Pits Dozing Inc | Montgomery County, MO | Common clays | 4 | 8 |
| Festus Underground | Fred Weber, Inc. | Jefferson County, MO | Sand, industrial | 1 | 7 |
| Owensville Plant | Continental Cement Company, LLC | Gasconade County, MO | Clay, ceramic, refractory mnls. | 3 | 6 |
| 4-E Sand & Gravel | 4-E Sand & Gravel | Dallas County, MO | Sand, industrial | 2 | 6 |
| Plant 5 / Smreker Supply | H Sand & Gravel | Jefferson County, MO | Sand, industrial | 4 | 4 |
| Wayland Sand | Viking Aggregates, Inc. | Clark County, MO | Sand, industrial | 5 | 3 |
| Krull | Scego Trucking, Inc | Gasconade County, MO | Fire clay | 3 | 2 |
| Lickcreek | MLH Excavation, LLC | Ozark County, MO | Sand, industrial | 1 | 1 |
| Dredge #6030 (Sandy Kay) | Capital Sand Company, Inc. | Callaway County, MO | Sand, industrial | 3 | 0 |
Main commodities
| Main commodity | Open mines | Share |
|---|---|---|
| Sand, industrial | 13 | 52% |
| Clay, ceramic, refractory mnls. | 4 | 16% |
| Fire clay | 3 | 12% |
| Common clays | 2 | 8% |
| Common shale | 1 | 4% |
| Tripoli | 1 | 4% |
| Quartz, ground | 1 | 4% |
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 | 147 | 21 | $44,758 | 11 |
| 2023 | 259 | 60 | $222,942 | 14 |
| 2024 | 160 | 29 | $59,939 | 15 |
| 2025 | 119 | 18 | $39,830 | 6 |
| 2026 | 71 | 10 | $17,825 | 9 |
Standards cited most at nonmetal mineral mines in 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 56.12004 | Surface metal and nonmetal mines | 57 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 53 |
| 30 CFR 56.20003 | Surface metal and nonmetal mines | 49 |
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 45 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 43 |
| 30 CFR 56.12028 | Surface metal and nonmetal mines | 34 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 33 |
| 30 CFR 56.11001 | Surface metal and nonmetal mines | 18 |
| 30 CFR 56.12030 | Surface metal and nonmetal mines | 17 |
| 30 CFR 56.4201 | Surface metal and nonmetal mines | 15 |
| 30 CFR 56.14207 | Surface metal and nonmetal mines | 15 |
| 30 CFR 56.18002 | Surface metal and nonmetal mines | 15 |
| 30 CFR 56.14132 | Surface metal and nonmetal mines | 14 |
| 30 CFR 50.30 | Reporting of accidents, injuries and illnesses | 14 |
| 30 CFR 47.44 | Hazard communication | 12 |
Injury and illness cases at nonmetal mineral mines in Missouri
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Days away from work or restricted activity | 38 |
| No lost time, or an occupational illness | 17 |
What the accident reports at nonmetal mineral mines in Missouri describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Handling of materials | 25 |
| Slip or fall of person | 12 |
| Powered haulage | 5 |
| Handtools (nonpowered) | 4 |
| Striking or bumping | 3 |
| Fire | 2 |
| Machinery | 2 |
| Other | 2 |
| Disorders (repeated trauma) | 2 |
| Fall of roof or back | 1 |
Equipment named in accident reports at nonmetal mineral mines in Missouri
| Equipment | Reports |
|---|---|
| Hand tools (not powered) | 4 |
| Conveyor | 3 |
| Ore haulage trucks - off highway trucks | 2 |
| Packaging machine | 2 |
| Man lift | 1 |
| Fan | 1 |
| Screen | 1 |
| Machine | 1 |
| Forklift | 1 |
| Road grader | 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.