Data / Mines / Florida / Miami-Dade County
Mines in Miami-Dade County, Florida: 9 open mines
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
MSHA lists 9 open mines in Miami-Dade County, Florida, run by 6 operators and employing 947 people. Since January 1, 2022 its inspectors issued 522 citations and orders there with $421,951 in proposed penalties, and operators reported 90 injury or illness cases, 1 of them fatal. The operators with the most open mines are Cemex Construction Materials Florida, LLC; Titan Florida LLC; White Rock Quarries. Data from MSHA, November 6, 2026.
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- Open mines
- 9
- Operators
- 6
- Employees
- 947
- Active
- 9
- Citations and orders since January 1, 2022
- 522
- Significant and substantial
- 140 (26.8%)
- Closure orders
- 8
- High negligence or reckless
- 16
- Proposed penalties
- $421,951
- Amount paid so far
- $357,144
- Inspections
- 181
- Inspector hours on site
- 3,374
- Citations per inspection
- 2.88 (all mines 2.30)
- Accident reports
- 92
- Injury and illness cases
- 90
- Fatalities
- 1
- Latest MSHA record
- October 25, 2026
Operators with the most open mines in Miami-Dade County, Florida
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 |
|---|---|---|---|---|---|
| Cemex Construction Materials Florida, LLC | 3 | 333 | 199 | $213,971 | 25 |
| Titan Florida LLC | 2 | 290 | 236 | $180,062 | 32 |
| White Rock Quarries | 1 | 205 | 45 | $15,859 | 24 |
| Epic Stoneworks, Inc. | 1 | 7 | 31 | $5,399 | 0 |
| Florida Rock Industries Inc | 1 | 91 | 9 | $6,366 | 8 |
| Martin Marietta Southeast Agg Operations, LLC | 1 | 21 | 2 | $294 | 1 |
Operators with the most citations in Miami-Dade County, Florida
Citations and orders issued since January 1, 2022 at their open mines here.
| Operator | Open mines | Employees | Citations since 2022 | Proposed penalties | Injury cases |
|---|---|---|---|---|---|
| Titan Florida LLC | 2 | 290 | 236 | $180,062 | 32 |
| Cemex Construction Materials Florida, LLC | 3 | 333 | 199 | $213,971 | 25 |
| White Rock Quarries | 1 | 205 | 45 | $15,859 | 24 |
| Epic Stoneworks, Inc. | 1 | 7 | 31 | $5,399 | 0 |
| Florida Rock Industries Inc | 1 | 91 | 9 | $6,366 | 8 |
| Martin Marietta Southeast Agg Operations, LLC | 1 | 21 | 2 | $294 | 1 |
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 |
|---|---|---|---|---|---|
| Miami Cement Plant | Cemex Construction Materials Florida, LLC | Miami-Dade County, FL | Cement | 136 | 168 |
| Pennsuco Cement Plant | Titan Florida LLC | Miami-Dade County, FL | Cement | 127 | 163 |
| Pennsuco Quarry | Titan Florida LLC | Miami-Dade County, FL | Crushed, broken limestone | 163 | 73 |
| White Rock Quarries | White Rock Quarries | Miami-Dade County, FL | Crushed, broken limestone | 205 | 45 |
| Epic Stoneworks, Inc. | Epic Stoneworks, Inc. | Miami-Dade County, FL | Dimension limestone | 7 | 31 |
| Fec Quarry | Cemex Construction Materials Florida, LLC | Miami-Dade County, FL | Crushed, broken limestone | 142 | 25 |
| Miami Quarry | Florida Rock Industries Inc | Miami-Dade County, FL | Crushed, broken limestone | 91 | 9 |
| Krome Quarry | Cemex Construction Materials Florida, LLC | Miami-Dade County, FL | Crushed, broken limestone | 55 | 6 |
| Sdi Aggregates LLC | Martin Marietta Southeast Agg Operations, LLC | Miami-Dade County, FL | Crushed, broken limestone | 21 | 2 |
Main commodities
| Main commodity | Open mines | Share |
|---|---|---|
| Crushed, broken limestone | 6 | 66.7% |
| Cement | 2 | 22.2% |
| Dimension limestone | 1 | 11.1% |
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 | 60 | 17 | $52,598 | 13 |
| 2023 | 115 | 41 | $135,923 | 23 |
| 2024 | 124 | 32 | $71,185 | 16 |
| 2025 | 135 | 30 | $76,078 | 22 |
| 2026 | 88 | 20 | $86,167 | 16 |
Standards cited most at mines in Miami-Dade County, Florida
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 | 117 |
| 30 CFR 56.11001 | Surface metal and nonmetal mines | 41 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 35 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 30 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 19 |
| 30 CFR 56.12018 | Surface metal and nonmetal mines | 18 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 18 |
| 30 CFR 56.12008 | Surface metal and nonmetal mines | 16 |
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 15 |
| 30 CFR 56.12028 | Surface metal and nonmetal mines | 14 |
| 30 CFR 56.4201 | Surface metal and nonmetal mines | 14 |
| 30 CFR 56.12019 | Surface metal and nonmetal mines | 10 |
| 30 CFR 56.14110 | Surface metal and nonmetal mines | 10 |
| 30 CFR 50.30 | Reporting of accidents, injuries and illnesses | 10 |
| 30 CFR 56.14132 | Surface metal and nonmetal mines | 10 |
Injury and illness cases at mines in Miami-Dade County, Florida
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Fatality | 1 |
| Permanent disability | 3 |
| Days away from work or restricted activity | 63 |
| No lost time, or an occupational illness | 23 |
What the accident reports at mines in Miami-Dade County, Florida describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Handling of materials | 29 |
| Slip or fall of person | 25 |
| Powered haulage | 14 |
| Machinery | 9 |
| Handtools (nonpowered) | 5 |
| Disorders (repeated trauma) | 2 |
| Electrical | 2 |
| Other | 2 |
| Exploding vessels under pressure | 1 |
| Fire | 1 |
Equipment named in accident reports at mines in Miami-Dade County, Florida
| Equipment | Reports |
|---|---|
| Shovel | 5 |
| Hand tools (not powered) | 5 |
| Ore haulage trucks - off highway trucks | 5 |
| Hand tools (powered) | 4 |
| Forklift | 3 |
| Conveyor | 3 |
| Front-end loader | 3 |
| Man lift | 2 |
| Welding machine | 2 |
| Milling machinery | 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.