Data / Mines / Florida / Lake County
Mines in Lake 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 Lake County, Florida, run by 6 operators and employing 122 people. Since January 1, 2022 its inspectors issued 65 citations and orders there with $19,165 in proposed penalties, and operators reported 9 injury or illness cases. The operators with the most open mines are E R Jahna Industries Inc; Cemex Construction Materials Florida, LLC; Florida Rock Industries Inc. Data from MSHA, November 6, 2026.
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- Open mines
- 9
- Operators
- 6
- Employees
- 122
- Active
- 9
- Citations and orders since January 1, 2022
- 65
- Significant and substantial
- 17 (26.2%)
- Closure orders
- 3
- High negligence or reckless
- 4
- Proposed penalties
- $19,165
- Amount paid so far
- $18,179
- Inspections
- 104
- Inspector hours on site
- 800
- Citations per inspection
- 0.62 (all mines 2.30)
- Accident reports
- 9
- Injury and illness cases
- 9
- Fatalities
- 0
- Latest MSHA record
- October 2, 2026
Operators with the most open mines in Lake 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 |
|---|---|---|---|---|---|
| E R Jahna Industries Inc | 2 | 51 | 8 | $1,401 | 3 |
| Cemex Construction Materials Florida, LLC | 2 | 27 | 3 | $298 | 0 |
| Florida Rock Industries Inc | 2 | 20 | 0 | $0 | 1 |
| Universal Aggregate Solutions, Inc. | 1 | 8 | 46 | $16,073 | 2 |
| Titan Florida LLC | 1 | 9 | 6 | $876 | 2 |
| Blue Water Industries Florida LLC | 1 | 7 | 2 | $517 | 1 |
Operators with the most citations in Lake 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 |
|---|---|---|---|---|---|
| Universal Aggregate Solutions, Inc. | 1 | 8 | 46 | $16,073 | 2 |
| E R Jahna Industries Inc | 2 | 51 | 8 | $1,401 | 3 |
| Titan Florida LLC | 1 | 9 | 6 | $876 | 2 |
| Cemex Construction Materials Florida, LLC | 2 | 27 | 3 | $298 | 0 |
| Blue Water Industries Florida LLC | 1 | 7 | 2 | $517 | 1 |
| Florida Rock Industries Inc | 2 | 20 | 0 | $0 | 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 |
|---|---|---|---|---|---|
| Okahumpka | Universal Aggregate Solutions, Inc. | Lake County, FL | Sand, industrial | 8 | 46 |
| Center Sand Company | Titan Florida LLC | Lake County, FL | Construction sand and gravel | 9 | 6 |
| Hilochee Sand Mine | E R Jahna Industries Inc | Lake County, FL | Sand, common | 5 | 6 |
| Independent Mine | E R Jahna Industries Inc | Lake County, FL | Construction sand and gravel | 46 | 2 |
| Lisbon Sand | Blue Water Industries Florida LLC | Lake County, FL | Sand, common | 7 | 2 |
| 474 Sand Mine | Cemex Construction Materials Florida, LLC | Lake County, FL | Construction sand and gravel | 6 | 2 |
| Four Corners Sand Mine | Cemex Construction Materials Florida, LLC | Lake County, FL | Sand, common | 21 | 1 |
| Astatula Sand Plant | Florida Rock Industries Inc | Lake County, FL | Sand, common | 13 | 0 |
| Lake Sand Plant | Florida Rock Industries Inc | Lake County, FL | Construction sand and gravel | 7 | 0 |
Main commodities
| Main commodity | Open mines | Share |
|---|---|---|
| Sand, common | 4 | 44.4% |
| Construction sand and gravel | 4 | 44.4% |
| Sand, industrial | 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 | 23 | 9 | $11,298 | 3 |
| 2023 | 5 | 0 | $719 | 2 |
| 2024 | 11 | 3 | $2,248 | 2 |
| 2025 | 2 | 0 | $302 | 2 |
| 2026 | 24 | 5 | $4,598 | 0 |
Standards cited most at mines in Lake 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 | 7 |
| 30 CFR 56.12028 | Surface metal and nonmetal mines | 4 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 4 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 4 |
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 3 |
| 30 CFR 46.5 | Training at sand, gravel and surface stone mines | 3 |
| 30 CFR 56.5001 | Surface metal and nonmetal mines | 3 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 3 |
| 30 CFR 56.14101 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.14130 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.4201 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.16005 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 2 |
| 30 CFR 47.41 | Hazard communication | 2 |
| 30 CFR 56.16006 | Surface metal and nonmetal mines | 2 |
Injury and illness cases at mines in Lake County, Florida
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Days away from work or restricted activity | 8 |
| No lost time, or an occupational illness | 1 |
What the accident reports at mines in Lake County, Florida describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Handling of materials | 4 |
| Slip or fall of person | 2 |
| Handtools (nonpowered) | 2 |
| Powered haulage | 1 |
Equipment named in accident reports at mines in Lake County, Florida
| Equipment | Reports |
|---|---|
| Hand tools (not powered) | 2 |
| Front-end loader | 1 |
| Ore haulage trucks - off highway trucks | 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.