Data / Mines / Florida / Polk County
Mines in Polk County, Florida: 17 open mines
MSHA lists 17 open mines in Polk County, Florida, run by 8 operators and employing 848 people. Since January 1, 2022 its inspectors issued 616 citations and orders there with $347,808 in proposed penalties, and operators reported 63 injury or illness cases. The operators with the most open mines are Standard Sand & Silica Company; Cemex Construction Materials Florida, LLC; I-4 Sand Company LLC. Data from MSHA, November 6, 2026.
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- Open mines
- 17
- Operators
- 8
- Employees
- 848
- Active
- 14
- Intermittent
- 2
- NonProducing
- 1
- Citations and orders since January 1, 2022
- 616
- Significant and substantial
- 136 (22.1%)
- Closure orders
- 15
- High negligence or reckless
- 40
- Proposed penalties
- $347,808
- Amount paid so far
- $332,342
- Inspections
- 254
- Inspector hours on site
- 3,624
- Citations per inspection
- 2.43 (all mines 2.30)
- Accident reports
- 65
- Injury and illness cases
- 63
- Fatalities
- 0
- Latest MSHA record
- October 12, 2026
Operators with the most open mines in Polk 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 |
|---|---|---|---|---|---|
| Standard Sand & Silica Company | 3 | 19 | 177 | $160,679 | 8 |
| Cemex Construction Materials Florida, LLC | 3 | 37 | 9 | $1,256 | 1 |
| I-4 Sand Company LLC | 3 | 16 | 7 | $5,096 | 2 |
| E R Jahna Industries Inc | 3 | 38 | 1 | $147 | 0 |
| Imc Phosphates Company | 2 | 716 | 403 | $180,319 | 51 |
| Mineral Grow | 1 | 3 | 17 | $0 | 0 |
| Kathleen Mine LLC | 1 | 12 | 2 | $311 | 1 |
| Florida Rock Industries Inc | 1 | 7 | 0 | $0 | 0 |
Operators with the most citations in Polk 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 |
|---|---|---|---|---|---|
| Imc Phosphates Company | 2 | 716 | 403 | $180,319 | 51 |
| Standard Sand & Silica Company | 3 | 19 | 177 | $160,679 | 8 |
| Mineral Grow | 1 | 3 | 17 | $0 | 0 |
| Cemex Construction Materials Florida, LLC | 3 | 37 | 9 | $1,256 | 1 |
| I-4 Sand Company LLC | 3 | 16 | 7 | $5,096 | 2 |
| Kathleen Mine LLC | 1 | 12 | 2 | $311 | 1 |
| E R Jahna Industries Inc | 3 | 38 | 1 | $147 | 0 |
| Florida Rock Industries Inc | 1 | 7 | 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 |
|---|---|---|---|---|---|
| Four Corners | Imc Phosphates Company | Polk County, FL | Phosphate rock | 500 | 269 |
| South Fort Meade Mine | Imc Phosphates Company | Polk County, FL | Phosphate rock | 216 | 134 |
| Flint Plant | Standard Sand & Silica Company | Polk County, FL | Construction sand and gravel | 3 | 68 |
| Lake Wales Dry Plant | Standard Sand & Silica Company | Polk County, FL | Construction sand and gravel | 9 | 59 |
| Silica Plant | Standard Sand & Silica Company | Polk County, FL | Construction sand and gravel | 7 | 50 |
| Mineral Grow | Mineral Grow | Polk County, FL | Phosphate rock | 3 | 17 |
| Davenport Sand Mine | Cemex Construction Materials Florida, LLC | Polk County, FL | Construction sand and gravel | 13 | 5 |
| Conrad Sand | I-4 Sand Company LLC | Polk County, FL | Sand, common | 3 | 5 |
| Lake Wales Sand Mine | Cemex Construction Materials Florida, LLC | Polk County, FL | Sand, common | 13 | 3 |
| Kathleen Mine | Kathleen Mine LLC | Polk County, FL | Crushed, broken limestone | 12 | 2 |
| Cypress Sand | I-4 Sand Company LLC | Polk County, FL | Sand, common | 7 | 2 |
| Green Bay Mine | E R Jahna Industries Inc | Polk County, FL | Sand, common | 21 | 1 |
| Gator Sand Mine | Cemex Construction Materials Florida, LLC | Polk County, FL | Sand, common | 11 | 1 |
| Haines City Mine | E R Jahna Industries Inc | Polk County, FL | Construction sand and gravel | 11 | 0 |
| Diamond Sand Plant | Florida Rock Industries Inc | Polk County, FL | Sand, common | 7 | 0 |
| Grove Sand | I-4 Sand Company LLC | Polk County, FL | Sand, common | 6 | 0 |
| Van Fleet | E R Jahna Industries Inc | Polk County, FL | Sand, common | 6 | 0 |
Main commodities
| Main commodity | Open mines | Share |
|---|---|---|
| Sand, common | 8 | 47.1% |
| Construction sand and gravel | 5 | 29.4% |
| Phosphate rock | 3 | 17.6% |
| Crushed, broken limestone | 1 | 5.9% |
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 | 65 | 27 | $34,396 | 21 |
| 2023 | 130 | 32 | $44,966 | 12 |
| 2024 | 150 | 29 | $105,238 | 12 |
| 2025 | 186 | 33 | $123,986 | 7 |
| 2026 | 85 | 15 | $39,222 | 11 |
Standards cited most at mines in Polk 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 56.11001 | Surface metal and nonmetal mines | 67 |
| 30 CFR 56.20003 | Surface metal and nonmetal mines | 60 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 53 |
| 30 CFR 56.12018 | Surface metal and nonmetal mines | 31 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 27 |
| 30 CFR 56.12008 | Surface metal and nonmetal mines | 26 |
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 25 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 22 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 20 |
| 30 CFR 56.12028 | Surface metal and nonmetal mines | 16 |
| 30 CFR 56.12019 | Surface metal and nonmetal mines | 16 |
| 30 CFR 56.18002 | Surface metal and nonmetal mines | 15 |
| 30 CFR 47.41 | Hazard communication | 15 |
| 30 CFR 56.16005 | Surface metal and nonmetal mines | 12 |
| 30 CFR 56.9300 | Surface metal and nonmetal mines | 12 |
Injury and illness cases at mines in Polk County, Florida
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 | 25 |
What the accident reports at mines in Polk County, Florida describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Handling of materials | 16 |
| Slip or fall of person | 15 |
| Handtools (nonpowered) | 8 |
| Powered haulage | 7 |
| Other | 6 |
| Machinery | 4 |
| Disorders (repeated trauma) | 3 |
| All other occupational illnesses | 2 |
| Stepping or kneeling on object | 1 |
| Disorders (physical agents) | 1 |
Equipment named in accident reports at mines in Polk County, Florida
| Equipment | Reports |
|---|---|
| Hand tools (not powered) | 8 |
| Ore haulage trucks - off highway trucks | 4 |
| Bulldozer | 3 |
| Trucks | 3 |
| Front-end loader | 2 |
| Shovel | 1 |
| Hoist | 1 |
| Pump | 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.