Data / Mines / Ohio / Butler County
Mines in Butler County, Ohio: 11 open mines
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
MSHA lists 11 open mines in Butler County, Ohio, run by 7 operators and employing 46 people. Since January 1, 2022 its inspectors issued 89 citations and orders there with $15,549 in proposed penalties, and operators reported 3 injury or illness cases. The operators with the most open mines are Martin Marietta Materials, Inc.; Dingledine Basic Materials Inc; Gravel Depot, LLC. Data from MSHA, November 6, 2026.
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- Open mines
- 11
- Operators
- 7
- Employees
- 46
- Active
- 6
- Intermittent
- 4
- New Mine
- 1
- Mines run by individuals, counted and not listed
- 3
- Citations and orders since January 1, 2022
- 89
- Significant and substantial
- 16 (18.0%)
- Closure orders
- 3
- High negligence or reckless
- 1
- Proposed penalties
- $15,549
- Amount paid so far
- $15,398
- Inspections
- 91
- Inspector hours on site
- 1,085
- Citations per inspection
- 0.98 (all mines 2.30)
- Accident reports
- 3
- Injury and illness cases
- 3
- Fatalities
- 0
- Latest MSHA record
- November 4, 2026
Operators with the most open mines in Butler County, Ohio
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. | 4 | 15 | 9 | $1,183 | 1 |
| Dingledine Basic Materials Inc | 1 | 4 | 6 | $886 | 0 |
| Gravel Depot, LLC | 1 | 3 | 0 | $0 | 0 |
| K & G Engineering, LLC | 1 | 3 | 0 | $0 | 0 |
| Welch Sand & Gravel Inc | 1 | 3 | 0 | $0 | 0 |
Operators with the most citations in Butler County, Ohio
Citations and orders issued since January 1, 2022 at their open mines here.
| Operator | Open mines | Employees | Citations since 2022 | Proposed penalties | Injury cases |
|---|---|---|---|---|---|
| Martin Marietta Materials, Inc. | 4 | 15 | 9 | $1,183 | 1 |
| Dingledine Basic Materials Inc | 1 | 4 | 6 | $886 | 0 |
| Gravel Depot, LLC | 1 | 3 | 0 | $0 | 0 |
| K & G Engineering, LLC | 1 | 3 | 0 | $0 | 0 |
| Welch Sand & Gravel 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 |
|---|---|---|---|---|---|
| Fairfield Gravel | Martin Marietta Materials, Inc. | Butler County, OH | Construction sand and gravel | 11 | 7 |
| Dingledine Basic Materials, Inc. | Dingledine Basic Materials Inc | Butler County, OH | Construction sand and gravel | 4 | 6 |
| Shamrock Sand & Gravel | Martin Marietta Materials, Inc. | Butler County, OH | Construction sand and gravel | 1 | 1 |
| New Miami Plant | Martin Marietta Materials, Inc. | Butler County, OH | Construction sand and gravel | 1 | 1 |
| MM Sand | K & G Engineering, LLC | Butler County, OH | Crushed, broken limestone | 3 | 0 |
| Lokotrack ST3.8 | Welch Sand & Gravel Inc | Butler County, OH | Construction sand and gravel | 3 | 0 |
| Trenton Franklin Pit | Gravel Depot, LLC | Butler County, OH | Construction sand and gravel | 3 | 0 |
| Ohio District Portable Screen (1900496) | Martin Marietta Materials, Inc. | Butler County, OH | Crushed, broken limestone | 2 | 0 |
Main commodities
| Main commodity | Open mines | Share |
|---|---|---|
| Construction sand and gravel | 9 | 81.8% |
| Crushed, broken limestone | 2 | 18.2% |
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 | 19 | 2 | $2,993 | 0 |
| 2023 | 15 | 5 | $3,947 | 0 |
| 2024 | 22 | 2 | $3,550 | 3 |
| 2025 | 20 | 3 | $4,023 | 0 |
| 2026 | 13 | 4 | $1,036 | 0 |
Standards cited most at mines in Butler County, Ohio
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 | 10 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 7 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 6 |
| 30 CFR 56.9300 | Surface metal and nonmetal mines | 5 |
| 30 CFR 56.12008 | Surface metal and nonmetal mines | 4 |
| 30 CFR 56.14109 | Surface metal and nonmetal mines | 4 |
| 30 CFR 50.30 | Reporting of accidents, injuries and illnesses | 4 |
| 30 CFR 56.12018 | Surface metal and nonmetal mines | 3 |
| 30 CFR 56.16005 | Surface metal and nonmetal mines | 3 |
| 30 CFR 56.18002 | Surface metal and nonmetal mines | 3 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 3 |
| 30 CFR 56.14132 | Surface metal and nonmetal mines | 3 |
| 30 CFR 56.11001 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.12028 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.4402 | Surface metal and nonmetal mines | 2 |
Injury and illness cases at mines in Butler County, Ohio
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Days away from work or restricted activity | 3 |
What the accident reports at mines in Butler County, Ohio describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Handling of materials | 2 |
| Machinery | 1 |
Equipment named in accident reports at mines in Butler County, Ohio
| Equipment | Reports |
|---|---|
| Crane | 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.