Coal production
0reported short tons
ACTIVE / OPERATOR PORTFOLIO
Florida Rock Industries Inc
Membership and operating status are from the latest MSHA Mines snapshot. Open a mine for its ownership history.
MSHA OPERATOR IDL00354
MINE PORTFOLIO
12 of 12 mines and facilities
2025-01-01 – 2026-10-18. Active records; production reporting is not required.
Material, method and type filters apply to this table. The portfolio’s status applies to the entire page. GEM fields describe their own release, not the selected MSHA year.
| Mine | Location / type | Coal · short tons | Hours worked | Violations | Accident records | On-site inspection hours |
|---|---|---|---|---|---|---|
| Astatula Sand Plant0800300 · Active6/8 quarters reported | Lake, FLSurface · MSHA: Sand, Common | 0 | 55,136 | 0 | 1 | 26.3 |
| Calcium Plant0801264 · Active6/8 quarters reported | Hernando, FLSurface · MSHA: Crushed, Broken Limestone NEC | 0 | 39,943 | 2 | 1 | 34.0 |
| Diamond Sand Plant0801354 · Active6/8 quarters reported | Polk, FLSurface · MSHA: Sand, Common | 0 | 45,187 | 0 | 0 | 13.5 |
| Fort Myers Mine0800991 · Active6/8 quarters reported | Lee, FLSurface · MSHA: Crushed, Broken Limestone NEC | 0 | 385,572 | 7 | 6 | 83.3 |
| Fort Pierce Mine0800899 · Active6/8 quarters reported | St Lucie, FLSurface · MSHA: Crushed, Broken Limestone NEC | 0 | 26,751 | 4 | 0 | 16.0 |
| Goldhead Sand Plant0800263 · Active6/8 quarters reported | Clay, FLSurface · MSHA: Sand, Common | 0 | 23,705 | 0 | 0 | 14.3 |
| Grandin Sand Plant0801082 · Active6/8 quarters reported | Putnam, FLSurface · MSHA: Sand, Common | 0 | 52,359 | 0 | 0 | 24.0 |
| KEUKA SAND PLANT0800434 · Active6/8 quarters reported | Putnam, FLSurface · MSHA: Sand, Industrial NEC | 0 | 30,848 | 0 | 0 | 31.8 |
| Lake Sand Plant0800867 · Active6/8 quarters reported | Lake, FLSurface · MSHA: Construction Sand and Gravel | 0 | 17,136 | 3 | 0 | 28.0 |
| Miami Quarry0800335 · Active6/8 quarters reported | Miami-Dade, FLSurface · MSHA: Crushed, Broken Limestone NEC | 0 | 431,594 | 9 | 2 | 89.0 |
| Weirsdale Sand Plant0801244 · Active6/8 quarters reported | Marion, FLSurface · MSHA: Sand, Common | 0 | 23,308 | 0 | 0 | 32.8 |
| Witherspoon Sand Plant0800308 · Active6/8 quarters reported | Glades, FLSurface · MSHA: Sand, Common | 0 | 53,259 | 2 | 1 | 32.5 |
Production and hours sum available quarterly reports. — means unavailable; zero safety records means none in the selected imported period. Ownership reflects the current MSHA record.
LOCATION
Portfolio map
12 of 12 mines with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- Astatula Sand Plant28.70250, -81.73306Open map ↗
- Calcium Plant28.63722, -82.42639Open map ↗
- Diamond Sand Plant27.89694, -81.51056Open map ↗
- Fort Myers Mine26.49000, -81.71722Open map ↗
- Fort Pierce Mine27.27306, -80.49944Open map ↗
- Goldhead Sand Plant29.82694, -81.96889Open map ↗
- Grandin Sand Plant29.72722, -81.92111Open map ↗
- KEUKA SAND PLANT29.59528, -81.86194Open map ↗
- Lake Sand Plant28.40333, -81.74500Open map ↗
- Miami Quarry25.79694, -80.38667Open map ↗
- Weirsdale Sand Plant28.98028, -81.86000Open map ↗
- Witherspoon Sand Plant26.81972, -81.37694Open map ↗
Quarterly trends
2025 Q1 – 2026 Q4
Database snapshot · 2026-10-18. All 12 mines listed under this operator were checked; 12 have reports in the available quarters. Totals use current ownership.
Hours worked
1,184,798reported employee hours
Tons per hour
0.00production ÷ hours worked
Missing values appear as —. Totals use available reports. Tons per hour requires production and hours for the same quarters and a nonzero hours total. * Striped bars mark partial mine coverage or an incomplete quarter. See the table for coverage.
Quarterly data and reporting coverage
| Quarter | Coal (short tons) | Hours worked | Tons / hour | Avg. employees | Coverage |
|---|---|---|---|---|---|
| 2025 Q1 | 0 | 189,836 | 0.00 | 304 | 12/12 mines reporting |
| 2025 Q2 | 0 | 204,345 | 0.00 | 332 | 12/12 mines reporting |
| 2025 Q3 | 0 | 206,058 | 0.00 | 323 | 12/12 mines reporting |
| 2025 Q4 | 0 | 204,337 | 0.00 | 330 | 12/12 mines reporting |
| 2026 Q1 | 0 | 190,778 | 0.00 | 337 | 12/12 mines reporting |
| 2026 Q2 | 0 | 189,444 | 0.00 | 331 | 12/12 mines reporting |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-18
Violations
275 significant & substantial (S&S)
Accident records
110 records classified as fatality
Proposed penalties · USD
6,442.0026 of 27 violations with amounts
On-site inspection hours
425.2551 inspections · 51 with hours
Counts are published records, including contractor records. * The quarter was incomplete at the snapshot date; recent counts may rise as reports arrive. — means no reported amount or hours. Portfolio totals use current membership.
Quarterly safety data
| Quarter | Violations | S&S | Proposed USD | Accident records | Fatality records | Inspections | On-site hours |
|---|---|---|---|---|---|---|---|
| 2025-Q1 | 3 | 2 | 1,057.00 | 2 | 0 | 5 | 53.0 |
| 2025-Q2 | 4 | 0 | 646.00 | 1 | 0 | 5 | 60.8 |
| 2025-Q3 | 0 | 0 | — | 1 | 0 | 8 | 55.8 |
| 2025-Q4 | 1 | 0 | 215.00 | 4 | 0 | 5 | 22.0 |
| 2026-Q1 | 7 | 0 | 1,211.00 | 2 | 0 | 11 | 103.5 |
| 2026-Q2 | 10 | 1 | 2,848.00 | 0 | 0 | 9 | 84.8 |
| 2026-Q3 | 1 | 1 | 465.00 | 1 | 0 | 5 | 35.0 |
| 2026-Q4 * | 1 | 1 | — | 0 | 0 | 3 | 10.5 |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
- Miami Quarry · 0800335
Regular Safety and Health Inspection · 27.3 on-site hours
- Miami Quarry · 0800335
56.11002 · $151.00 proposed
- Diamond Sand Plant · 0801354
Regular Safety and Health Inspection · 5.5 on-site hours
- Astatula Sand Plant · 0800300
Regular Safety and Health Inspection · 3.5 on-site hours
- KEUKA SAND PLANT · 0800434
Spot Inspection · 8.5 on-site hours
- Grandin Sand Plant · 0801082
Spot Inspection · 8.5 on-site hours
- Miami Quarry · 0800335
Regular Safety and Health Inspection · 21.0 on-site hours
- Miami Quarry · 0800335
56.20003(b) · S&S · $432.00 proposed
- Miami Quarry · 0800335
56.20003(b) · S&S · $432.00 proposed
- Miami Quarry · 0800335
56.14100(b) · $193.00 proposed
- Calcium Plant · 0801264
Regular Safety and Health Inspection · 6.0 on-site hours
- Witherspoon Sand Plant · 0800308
SLIP OR FALL OF PERSON · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
EE was stepping off the work boat onto the dredge when EE's foot slipped through the handrail of the work boat, pinning EE's leg up to the knee. EE didn't go to the clinic until 2/18/2025, they said EE has an infection in the lower part of the leg
- KEUKA SAND PLANT · 0800434
Regular Safety and Health Inspection · 9.0 on-site hours
- Miami Quarry · 0800335
HANDTOOLS (NONPOWERED) · DYS AWY FRM WRK & RESTRCTD ACT
Accident narrative
Employee hit a troughing roller on a conveyor with a hammer and struck hand fracturing EE's right thumb and index finger, as well as lacerating EE's right index finger requiring seven stitches.
Safety sources and definitions
MSHA Violations (issue date), Accidents (accident date), and Inspections (begin date). Snapshot 2026-10-18.
Counts describe published rows, including contractor records; accident records are not distinct incidents or numbers of people injured.
Zero means no matching records in the imported sources, not proof of no events. Historical coverage differs by source; absence before a source begins reporting is not a zero incident rate. Invalid or absent dates and records after the snapshot are excluded.
S&S means SIG_SUB=Y. Fatality records use DEGREE_INJURY_CD=01. Proposed penalties are not final assessed or paid amounts; missing dollar values are omitted.
Inspection hours are SUM_TOTAL_ON_SITE_HOURS attributed to the inspection start date, without supervisor/trainee hours. Missing hours are omitted; a started inspection may still be open.
Portfolio totals use current mine membership, including events before the current owner or operator's tenure.
CFR headings link to the current Title 30 index; they are not historical legal determinations.
SELECTED PORTFOLIO
1 linked controller.
Relationships reflect the selected mine status and current MSHA controller/operator fields.