ACTIVE / OPERATOR PORTFOLIO
Membership and operating status are from the latest MSHA Mines snapshot. Open a mine for its ownership history.
MINE PORTFOLIO
2025-01-01 – 2026-10-17. 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 |
|---|---|---|---|---|---|---|
| Cantera San Antonio5400135 · Active | Bayamon, PRSurface · MSHA: Crushed, Broken Limestone NEC | — | — | 19 | 11 | 123.5 |
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
1 of 1 mine with usable MSHA coordinates. Select a marker to open a mine.
2025 Q1 – 2026 Q4
Database snapshot · 2026-10-17. All 1 mines listed under this operator were checked; 0 have reports in the available quarters. Totals use current ownership.
reported short tons
reported employee hours
production ÷ 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.
| Quarter | Coal (short tons) | Hours worked | Tons / hour | Avg. employees | Coverage |
|---|---|---|---|---|---|
| 2025 Q1 | — | — | — | — | No report |
| 2025 Q2 | — | — | — | — | No report |
| 2025 Q3 | — | — | — | — | No report |
| 2025 Q4 | — | — | — | — | No report |
| 2026 Q1 | — | — | — | — | No report |
| 2026 Q2 | — | — | — | — | No report |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
2025-01-01 – 2026-10-17
8 significant & substantial (S&S)
0 records classified as fatality
18 of 19 violations with amounts
15 inspections · 15 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.
| Quarter | Violations | S&S | Proposed USD | Accident records | Fatality records | Inspections | On-site hours |
|---|---|---|---|---|---|---|---|
| 2025-Q1 | 8 | 2 | 11,808.00 | 2 | 0 | 4 | 35.0 |
| 2025-Q2 | 0 | 0 | — | 0 | 0 | 0 | — |
| 2025-Q3 | 3 | 1 | 999.00 | 0 | 0 | 2 | 24.5 |
| 2025-Q4 | 3 | 3 | 1,091.00 | 3 | 0 | 3 | 8.0 |
| 2026-Q1 | 2 | 1 | 848.00 | 1 | 0 | 2 | 26.0 |
| 2026-Q2 | 1 | 1 | 398.00 | 1 | 0 | 1 | 5.0 |
| 2026-Q3 | 2 | 0 | 316.00 | 4 | 0 | 3 | 25.0 |
| 2026-Q4 * | 0 | 0 | — | 0 | 0 | 0 | — |
All violations issued in the selected period. Counts combine subsections.
HANDTOOLS (NONPOWERED) · DAYS AWAY FROM WORK ONLY
The employee was manually cutting rubber with a utility knife while holding the material in place. During the task, the knife slipped and came into contact with their left forearm, resulting in the injury.
HANDTOOLS (NONPOWERED) · DAYS AWAY FROM WORK ONLY
During corrective maintenance to replace a rubber curtain on the Diester 6' x 20' screen (ID V-1-007, the employee was cutting rubber material with a utility knife when the tool unexpectedly slipped, causing a laceration to left hand. First aid was immediately administered, and the employee received appropriate medical attention.
Compliance Follow-up Inspection · 1.0 on-site hours
56.14100(b) · $151.00 proposed
Regular Safety and Health Inspection · 21.0 on-site hours
56.11002 · $165.00 proposed
Special Emphasis Programs · 3.0 on-site hours
HANDTOOLS (NONPOWERED) · DAYS AWAY FROM WORK ONLY
The employee was removing a flywheel from a jaw crusher motor using a mechanical puller secured by a chain attached to a support structure. The mechanic released the puller prematurely, causing the flywheel to fall onto the employee's right foot instep, resulting in an injury consistent with at least a sprain.
POWERED HAULAGE · DAYS AWAY FROM WORK ONLY
The employee applied force to the ignition key without maintaining proper grip and control. Contributing factors: use of a key ring with multiple keys; failure to follow supervisory instructions; lack of hazard recognition. Root cause: noncompliance with operating instructions and use of an inadequate key system for safe equipment operation.
Spot Inspection · 5.0 on-site hours
56.15007 · S&S · $398.00 proposed
MACHINERY · DAYS AWAY FROM WORK ONLY
The employee was cutting steel using a carbon electrode. During the operation, the employee temporarily removed the face shield, allowing a particle generated by the cutting process to enter the left eye. The task was being performed under normal operating conditions.
Compliance Follow-up Inspection · 2.0 on-site hours
56.11002 · $151.00 proposed
Regular Safety and Health Inspection · 24.0 on-site hours
56.15007 · S&S · $697.00 proposed
HANDLING OF MATERIALS · DAYS AWAY FROM WORK ONLY
The worker was waiting for a container to be filled with degreaser. Although EE initially had EE's safety glasses on, EE removed them upon entering the room because the area was darker. During the filling process, the pump malfunctioned and the hose detached due to inadequate fastening, causing the product to splash directly onto the worker's face and eyes.
Non-Fatal Accident Investigation · 2.5 on-site hours
Non-Fatal Accident Investigation · 3.5 on-site hours
Non-Fatal Accident Investigation · 2.0 on-site hours
56.15005 · S&S · $465.00 proposed
56.14105 · S&S · $313.00 proposed
56.14110 · S&S · $313.00 proposed
SLIP OR FALL OF PERSON · DAYS AWAY FROM WORK ONLY
EE fell from the top of the engine, sustaining a nasal fracture and a laceration to EE's forehead.
MACHINERY · DAYS AWAY FROM WORK ONLY
During the operation of a track drill, one of the drill bits was positioned outside the storage channel. The operator requested EE's coworker to activate the drill changer lever while EE manually held the bit. Upon activation, the operator's right thumb was caught between two drill bits, resulting in an injury.
MSHA Violations (issue date), Accidents (accident date), and Inspections (begin date). Snapshot 2026-10-17.
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
Relationships reflect the selected mine status and current MSHA controller/operator fields.