Key Takeaway
Cantera San Antonio is a active surface mine producing Stone, located in Guaynabo, Bayamon County, PR. It has 161 violations on record (55 S&S) and $90K in proposed penalties. Operated by Empresas Ortiz Brunet Inc.
Cantera San Antonio
Operator: Empresas Ortiz Brunet Inc
Controller: Carlos Ortiz Brunet
Location: Guaynabo, Bayamon County, PR
Employees: 37
Recent Violations
View all 161 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 02/04/2026 | 56.11002 | Non-S&S | ModNegligence | $0 |
| 02/03/2026 | 56.15007 | S&S | ModNegligence | $0 |
| 12/01/2025 | 56.14110 | S&S | ModNegligence | $0 |
| 12/01/2025 | 56.14105 | S&S | ModNegligence | $0 |
| 12/01/2025 | 56.15005 | S&S | ModNegligence | $0 |
| 07/16/2025 | 56.14107(a) | Non-S&S | ModNegligence | $151 |
| 07/15/2025 | 56.9300(a) | S&S | ModNegligence | $697 |
| 07/15/2025 | 56.14100(b) | Non-S&S | ModNegligence | $151 |
| 01/23/2025 | 56.12030 | S&S | HighNegligence | $3,448 |
| 01/21/2025 | 56.14100(b) | Non-S&S | ModNegligence | $313 |
| 01/21/2025 | 56.14211(e) | Non-S&S | ModNegligence | $465 |
| 01/21/2025 | 56.14207 | Non-S&S | LowNegligence | $151 |
| 01/15/2025 | Non-S&S | $0 | ||
| 01/15/2025 | 56.14105 | S&S | ModNegligence | $3,832 |
| 01/15/2025 | 56.12012 | Non-S&S | HighNegligence | $3,448 |
| 01/14/2025 | 56.14100(b) | Non-S&S | ModNegligence | $151 |
| 10/29/2024 | 56.15002 | S&S | LowNegligence | $147 |
| 09/04/2024 | 56.14100(b) | Non-S&S | ModNegligence | $357 |
| 09/04/2024 | 56.14100(b) | S&S | ModNegligence | $3,944 |
| 03/20/2024 | 46.8(a)(2) | Non-S&S | ModNegligence | $164 |
Accidents & Injuries
View all 55 →| Date | Classification | Injury | Days Lost |
|---|---|---|---|
| 01/10/2026 | HANDLING OF MATERIALS | DAYS AWAY FROM WORK ONLY | 3d lost |
| 11/07/2025 | SLIP OR FALL OF PERSON | DAYS AWAY FROM WORK ONLY | None |
| 10/04/2025 | MACHINERY | DAYS AWAY FROM WORK ONLY | 38d lost |
| 10/01/2025 | MACHINERY | DAYS AWAY FROM WORK ONLY | None |
| 02/11/2025 | MACHINERY | DAYS AWAY FROM WORK ONLY | 3d lost |
| 01/13/2025 | HANDLING OF MATERIALS | DAYS AWAY FROM WORK ONLY | 8d lost |
| 10/15/2024 | STRIKING OR BUMPING | DAYS AWAY FROM WORK ONLY | 4d lost |
| 05/06/2024 | SLIP OR FALL OF PERSON | DAYS AWAY FROM WORK ONLY | 284d lost |
| 03/29/2023 | EXPLODING VESSELS UNDER PRESSURE | DAYS AWAY FROM WORK ONLY | 6d lost |
| 03/03/2023 | STEPPING OR KNEELING ON OBJECT | DAYS AWAY FROM WORK ONLY | 2d lost |
Inspections
View all 165 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 02/18/2026 | 02/18/2026 | 4.50 | 1 |
| 02/03/2026 | 02/05/2026 | 27.00 | 1 |
| 12/01/2025 | 12/02/2025 | 7.00 | 1 |
| 12/01/2025 | 12/03/2025 | 5.00 | 1 |
| 12/01/2025 | 12/03/2025 | 7.50 | 1 |
| 07/28/2025 | 07/28/2025 | 4.50 | 1 |
| 07/15/2025 | 07/29/2025 | 35.00 | 1 |
| 02/27/2025 | 02/27/2025 | 6.00 | 1 |
| 02/20/2025 | 02/20/2025 | 8.00 | 1 |
| 02/06/2025 | 02/07/2025 | 8.00 | 1 |
Mine Details
Related Mines
Frequently Asked Questions
How many MSHA violations does Cantera San Antonio have?
Cantera San Antonio has 161 MSHA violations on record, of which 55 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $90K.
What type of mine is Cantera San Antonio?
Cantera San Antonio is a Surface mine producing Stone, located in Guaynabo, Bayamon County, PR. It currently has 37 employees.
Has anyone been injured or killed at Cantera San Antonio?
According to MSHA records, Cantera San Antonio has 55 reported accident/injury records and 0 fatalities on file.
Who operates Cantera San Antonio?
Cantera San Antonio is operated by Empresas Ortiz Brunet Inc and controlled by Carlos Ortiz Brunet. MSHA Mine ID: 5400135.