Data / Mines / Missouri / Montgomery County
Mines in Montgomery County, Missouri: 8 open mines
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
MSHA lists 8 open mines in Montgomery County, Missouri, run by 7 operators and employing 64 people. Since January 1, 2022 its inspectors issued 169 citations and orders there with $73,029 in proposed penalties, and operators reported 8 injury or illness cases. The operators with the most open mines are Hermann Sand & Gravel Inc; Christy Minerals LLC; County Line Quarry, LLC. Data from MSHA, November 6, 2026.
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- Open mines
- 8
- Operators
- 7
- Employees
- 64
- Active
- 5
- Intermittent
- 3
- Citations and orders since January 1, 2022
- 169
- Significant and substantial
- 41 (24.3%)
- Closure orders
- 4
- High negligence or reckless
- 18
- Proposed penalties
- $73,029
- Amount paid so far
- $67,003
- Inspections
- 83
- Inspector hours on site
- 440
- Citations per inspection
- 2.04 (all mines 2.30)
- Accident reports
- 8
- Injury and illness cases
- 8
- Fatalities
- 0
- Latest MSHA record
- September 22, 2026
Operators with the most open mines in Montgomery 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 |
|---|---|---|---|---|---|
| Hermann Sand & Gravel Inc | 2 | 5 | 43 | $6,980 | 0 |
| Christy Minerals LLC | 1 | 35 | 69 | $30,886 | 8 |
| County Line Quarry, LLC | 1 | 12 | 38 | $30,836 | 0 |
| Pits Dozing Inc | 1 | 4 | 8 | $2,720 | 0 |
| Gleeson Landscaping and Family, Inc. | 1 | 2 | 6 | $878 | 0 |
| QBQ Industries LLC | 1 | 5 | 3 | $453 | 0 |
| Martin Marietta Materials, Inc. | 1 | 1 | 2 | $276 | 0 |
Operators with the most citations in Montgomery 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 |
|---|---|---|---|---|---|
| Christy Minerals LLC | 1 | 35 | 69 | $30,886 | 8 |
| Hermann Sand & Gravel Inc | 2 | 5 | 43 | $6,980 | 0 |
| County Line Quarry, LLC | 1 | 12 | 38 | $30,836 | 0 |
| Pits Dozing Inc | 1 | 4 | 8 | $2,720 | 0 |
| Gleeson Landscaping and Family, Inc. | 1 | 2 | 6 | $878 | 0 |
| QBQ Industries LLC | 1 | 5 | 3 | $453 | 0 |
| Martin Marietta Materials, Inc. | 1 | 1 | 2 | $276 | 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 |
|---|---|---|---|---|---|
| Christy Minerals Plant | Christy Minerals LLC | Montgomery County, MO | Clay, ceramic, refractory mnls. | 35 | 69 |
| County Line Quarry | County Line Quarry, LLC | Montgomery County, MO | Crushed, broken limestone | 12 | 38 |
| Arl-501 | Hermann Sand & Gravel Inc | Montgomery County, MO | Sand, common | 4 | 23 |
| Hermann Sand & Gravel Dredge & Plant | Hermann Sand & Gravel Inc | Montgomery County, MO | Construction sand and gravel | 1 | 20 |
| Johnson Pit | Pits Dozing Inc | Montgomery County, MO | Common clays | 4 | 8 |
| Gleeson Landscaping | Gleeson Landscaping and Family, Inc. | Montgomery County, MO | Construction sand and gravel | 2 | 6 |
| QBQ Portable 2 | QBQ Industries LLC | Montgomery County, MO | Crushed, broken limestone | 5 | 3 |
| Big Springs Quarry | Martin Marietta Materials, Inc. | Montgomery County, MO | Crushed, broken limestone | 1 | 2 |
Main commodities
| Main commodity | Open mines | Share |
|---|---|---|
| Crushed, broken limestone | 3 | 37.5% |
| Construction sand and gravel | 2 | 25% |
| Clay, ceramic, refractory mnls. | 1 | 12.5% |
| Common clays | 1 | 12.5% |
| Sand, common | 1 | 12.5% |
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 | 28 | 8 | $14,036 | 3 |
| 2023 | 55 | 13 | $39,279 | 3 |
| 2024 | 12 | 1 | $3,406 | 1 |
| 2025 | 41 | 7 | $6,543 | 1 |
| 2026 | 33 | 12 | $9,765 | 0 |
Standards cited most at mines in Montgomery 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 56.14107 | Surface metal and nonmetal mines | 29 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 15 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 13 |
| 30 CFR 50.30 | Reporting of accidents, injuries and illnesses | 10 |
| 30 CFR 56.12028 | Surface metal and nonmetal mines | 9 |
| 30 CFR 56.20003 | Surface metal and nonmetal mines | 9 |
| 30 CFR 56.14132 | Surface metal and nonmetal mines | 8 |
| 30 CFR 56.4201 | Surface metal and nonmetal mines | 6 |
| 30 CFR 47.44 | Hazard communication | 5 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 5 |
| 30 CFR 56.18002 | Surface metal and nonmetal mines | 5 |
| 30 CFR 56.11003 | Surface metal and nonmetal mines | 4 |
| 30 CFR 56.12018 | Surface metal and nonmetal mines | 4 |
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 4 |
| 30 CFR 56.11001 | Surface metal and nonmetal mines | 3 |
Injury and illness cases at mines in Montgomery County, Missouri
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Days away from work or restricted activity | 6 |
| No lost time, or an occupational illness | 2 |
What the accident reports at mines in Montgomery County, Missouri describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Handling of materials | 4 |
| Slip or fall of person | 3 |
| Handtools (nonpowered) | 1 |
Equipment named in accident reports at mines in Montgomery County, Missouri
| Equipment | Reports |
|---|---|
| Hand tools (not powered) | 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.