Data / Mines / Florida / Four Corners
Four Corners, Polk County, Florida: 269 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Four Corners is an active phosphate rock surface mine in Polk County, Florida, operated by Imc Phosphates Company with 500 employees on MSHA's record (mine ID 0801117). Since January 1, 2022 MSHA inspectors issued 269 citations and orders there with $137,270 in proposed penalties, and 29 accident reports were filed there, with 29 injury or illness cases.
The request: Watch Four Corners (MSHA mine ID 0801117) in Polk County, Florida: each new citation and each accident report. $10 of work on sign-up, no card.
SpecStream is the live web data engine for teams and agents. It reads the mine, citation, inspection and accident files that MSHA publishes, and this page is that reading. Ask for the mines of a commodity, state or operator with the operator's headquarters, website and size added from the web, and new mines, new citations and new accident reports arrive in your sheet, CRM, Slack or agent as MSHA posts them.
- MSHA mine ID
- 0801117
- Status
- Active since November 18, 1988
- Main commodity
- Phosphate rock
- Mine type
- Surface
- County
- Polk County, Florida
- Nearest town
- Mulberry
- Operator
- Imc Phosphates Company
- Parent company
- Mosaic Company
- Employees
- 500
- MSHA field office
- Bartow FL Field Office
- Citations and orders since January 1, 2022
- 269
- Significant and substantial
- 40 (14.9%)
- Closure orders
- 8
- High negligence or reckless
- 10
- Proposed penalties
- $137,270
- Amount paid so far
- $135,721
- Inspections
- 53
- Inspector hours on site
- 1,630
- Citations per inspection
- 5.08 (all mines 2.30)
- Accident reports
- 29
- Injury and illness cases
- 29
- Fatalities
- 0
- Latest MSHA record
- August 28, 2026
- Citations issued to contractors here
- 57 ($15,144 proposed)
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 | 15 | 2 | $4,048 | 14 |
| 2023 | 79 | 18 | $31,815 | 7 |
| 2024 | 76 | 12 | $62,716 | 2 |
| 2025 | 54 | 4 | $17,927 | 4 |
| 2026 | 45 | 4 | $20,764 | 2 |
Standards cited most at Four Corners
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 | 39 |
| 30 CFR 56.20003 | Surface metal and nonmetal mines | 29 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 15 |
| 30 CFR 56.12018 | Surface metal and nonmetal mines | 15 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 13 |
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 9 |
| 30 CFR 56.9300 | Surface metal and nonmetal mines | 9 |
| 30 CFR 47.41 | Hazard communication | 8 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 8 |
| 30 CFR 56.12006 | Surface metal and nonmetal mines | 7 |
| 30 CFR 50.20 | Reporting of accidents, injuries and illnesses | 6 |
| 30 CFR 56.12019 | Surface metal and nonmetal mines | 6 |
| 30 CFR 56.12008 | Surface metal and nonmetal mines | 6 |
| 30 CFR 48.31 | Training of miners | 5 |
| 30 CFR 56.12068 | Surface metal and nonmetal mines | 5 |
Injury and illness cases at Four Corners
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Days away from work or restricted activity | 20 |
| No lost time, or an occupational illness | 9 |
What the accident reports at Four Corners describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Slip or fall of person | 9 |
| Handling of materials | 6 |
| Powered haulage | 5 |
| Handtools (nonpowered) | 2 |
| Other | 2 |
| Machinery | 2 |
| Stepping or kneeling on object | 1 |
| Disorders (physical agents) | 1 |
| Disorders (repeated trauma) | 1 |
Equipment named in accident reports at Four Corners
| Equipment | Reports |
|---|---|
| Ore haulage trucks - off highway trucks | 4 |
| Trucks | 3 |
| Hand tools (not powered) | 2 |
| Bulldozer | 1 |
| Shovel | 1 |
Other open mines in Polk County, Florida
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| 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 |
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.