Mining Incidents

Cantera San AntonioMetal/Nonmetal

Controlled by Carlos Ortiz Brunet
Guaynabo, Bayamon County, PR · Active
MSHA Mine ID: 5400135
Fatalities
0
Total incidents
56
Years on record
2000–2026
Latest incident
Apr 2026
No fatalities recorded at this mine.

Reportable incidents

56 on file

2026 · 2 incidents

Struck by flying object

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.

Absorption of radiations, caustics, toxic and noxious substances

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.

2025 · 5 incidents

Fall from machine

EE fell from the top of the engine, sustaining a nasal fracture and a laceration to EE's forehead.

Caught in, under or between running or meshing objects

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.

Struck by flying object

The worker did not maintain a safe distance from the operating crusher, exposing self to flying rocks, which have contributed to the incident.

Struck by... (Not Elsewhere Classified)

The affected worker began workday at 6:30 AM. While loosening a screw on the machine, EE lost control of the tool EE was using, causing EE to hit forehead, specifically on the left side, at the level of the eyebrow. As a result, EE sustained trauma and a wound that required a three-stitch suture.

Struck by... (Not Elsewhere Classified)

The accident occurred while the miner was attempting to adjust a piece on a forklift. The piece rolled over, causing minor injury to fingers #2 and #3 on EE's right hand. Finger #3 sustained a small amount of bleeding, with no significant impairment reported.

2024 · 2 incidents

Struck against stationary object

At the time of the incident, the miner was preparing to replace a wiper on a conveyor. To perform this task, they passed under a different conveyor, unfortunately, they were not wearing their protective helmet. When they lifted their head before passing through, they struck it, causing a laceration that required (7) stitches.

Over-exertion (Not Elsewhere Classified)

While operating the loader, the miner began experiencing lower back pain when attempting to dismount from the equipment.

2023 · 2 incidents

Struck by flying object

Employee was operating the hydraulic hammer to break a rock in the primary crusher and a hydraulic hose failed, being hit with the hydraulic fluid in the chest and splashed in the left eye.

Struck against stationary object

The miner alleges that EE was pumping diesel into equipment and when EE got off a wall EE fell on a stone and sprained EE's ankle.

2022 · 3 incidents

Over-exertion in lifting objects

Lifting parts from floor at the warehouse.

Struck against a moving object

Miner was operating a loader, and at the time miner wanted to get off the loader the operator started to suffer lower back pain.

Over-exertion (Not Elsewhere Classified)

After installing a screen cloth, the miner felt back pain illness.

2021 · 3 incidents

Struck against a moving object

The truck operator was driving from the material extraction point to the crushing plant when apparently lost the vehicle control and impacted the berm and as consequence overturned.

Struck against stationary object

Improper use of tool.

Struck against stationary object

Defective handrail on customer truck.

2020 · 3 incidents

Struck against stationary object

Miner was replacing a conveyor cleaner when EE suddenly raised EE's head and bang into the structure.

Caught in, under or between (Not Elsewhere Classified)

Try to stop the spinning action cargo.

Caught in, under or between a moving and a stationary object

When the miner removed a piece of metal from the magnet, the magnet immediately pulled back the metal simultaneously and pricked the thumb of the right hand.

2019 · 1 incident

Struck by falling object

The employee was closing the main entrance gate when it fell and impacted employee's left leg and bruised employee's head.

2018 · 1 incident

Over-exertion (Not Elsewhere Classified)

EE was using a Wrench Impact releasing a nut and twisted EE's right hand

2015 · 1 incident

Struck by falling object

The Excavator bucket failed and hit the hammer the welder had on his hand and the hammer impacted him.

2014 · 2 incidents

Contact with electrical current

The miner was pulling the welding cables to the vibrator when the positive and negative wire joined and burned his left hand.

(Not Elsewhere Classified)

An independent truck driver fell to the ground at the office parking lot. He die from natural cause (Heart Attack). The personnel present at the moment of the incident did not believe this dead was reportable. We called the San Juan District office to ensure we were in compliance with the rules and regulations.

2013 · 1 incident

Struck by... (Not Elsewhere Classified)

A metal particular was embedded in the left eye, miner was washing his face when he noticed that something entered his eye.

2012 · 3 incidents

Struck against a moving object

Driving the truck and the seat system failed causing injury to the employees back.

Caught in, under or between running or meshing objects

The employee injured his left hand with the angle grinder(polisher), due to the fact that he loos not using the proper hand gear(glove).

Contact with hot objects or substances

Melting screws, a spark occurred and insert into the left ear.

2011 · 2 incidents

Struck by falling object

He was mounting the jaw die of the jaw crusher, they were set with a wooden piece, opened the jaw crusher to align the screws, apparently one of the wooden pieces fell causing the jaw die to fall forward and wedge his right foot.

Struck by rolling or sliding object

Closing off the ladder, removed the bolts from the stairs it rolled down impacting the employees left foot.

2010 · 1 incident

Struck by... (Not Elsewhere Classified)

Was working to take out a hydraulic piston bottle with air, the fitting broke hitting him in his middle, left hand finger, and cutting him.

2009 · 1 incident

Fall from machine

He slipped going up the stairs to the truck and fell. He injured his lower back and his left ankle.

2008 · 1 incident

Over-exertion (Not Elsewhere Classified)

Se bajo del camion para mover una piedra y se lastimo la espalda. (moved a stone and hurt back)

2007 · 3 incidents

Fall to the walkway or working surface

While fumigating around the power magazine #1, slipping and falling seated feeling pain in the lower parts of the back.

Struck by... (Not Elsewhere Classified)

Trabajando en la montura de la tapa del vibrador # 1 el empleado se mueve a buscar una extencion, se mueve el skytrack y al mover el brazo el tubo se safa dandole en el lado derecho de la cabeza y hombro derecho.

Over-exertion in lifting objects

Al momento de subir al equipo de barrer resbala, al resbalar se da en la espalda con la goma del equipo. Esto le ocasiono un dolor en el area de la cintura. (At the time of raising the equipment to sweep, it slips. This caused a pain to him in the area of the waist.)

2005 · 2 incidents

Absorption of radiations, caustics, toxic and noxious substances

THE EMPLOYEE WENT TO TAKE OFF A HYDRAULIC HOSE. WHEN HE LOOSENED IT, THE PRESSURE OF THE OIL WENT INTO HIS EYE.

Bodily reaction, (Not Elsewhere Classified)

WHEN BENDING TO GIVE MAINTENANCE TO THE PLANT, HE FELT PAIN ON THE RIGHT SIDE WHICH TRAVELED DOWN TO HIS RIGHT ARM.

2004 · 4 incidents

Struck against a moving object

THE LEFT REAR TIRE WENT FLAT. IT WAS REPAIRED AND INSTALLED. AFTERWARD THIS TIRE NUTS BECAME LOOSE AND THE TRACTOR LOST THE WHEEL MAKING THE TRACTOR TO FALL.

Fall from machine

EE was trying to position the bulldozer blade vertically with a loader. when the loader went back, the blade fell down and he was thrown out of the loader bucket and fell from an altitude of 10 ft.

Struck by falling object

WHILE EE WAS WORKING ON A CONCRETE FOUNDATION BENEATH THE SIDE OF A CONVEYOR, THERE WAS A POWER FAILURE. WHEN THE POWER CAME BACK, THE CONVEYOR STARTED TO OPERATE, MAKING SOME ROCKS FALL DOWN, HITTING EE ON HIS BACK.

Struck against a moving object

WHILE THE MINER WAS DRIVING A CAT 769C (DUMP TRUCK) LOADED WITH STONES UP A HILL THE TRUCK STARTED TO LOSE POWER AND HE STOPPED, THEN THE THE DRIVER TRIED AGAIN TO CONTINUE, BUT THE ENGINE OF THE TRUCK STALLED. HE TRIED TO BACK IT UP AGAINST THE EMBANKMENT AND WHILE DOING SO, HE TURNED OVER TO THE SIDE.

2003 · 4 incidents

Struck by... (Not Elsewhere Classified)

THE EE WAS USING A HYDRAULIC JACK TO OPEN THE SIDE BOARD OF THE VIBRATING SCREEN, TO INSTALL A DECK FRAME; WHILE UNDER HYDRAULIC PRESSURE THEY ""BANGED"" THE SIDE OF THE FRAME WITH A SLEDGE HAM MER. THE IMPACT CAUSED THE HYDRAULIC JACK TO JUMP HITTING THE PIPE HANDLE, CUTTING THE FINGER OF THE EE.

Struck by... (Not Elsewhere Classified)

EMPLOYEE WAS TRYING TO INSTALL A TENSION SPRING ON THE EXCAVATOR EX-1-002, THE SPRING BOUNCED CAUSING INJURIES ON ONE OF HIS FINGERS AND ON A TOOTH.

No Value Found

EE WAS DRIVING CO TRUCK WITHOUT PERMISSION. THIS TRUCK HAD TRANSMISSION PROBLEMS AND WAS STOPPED& OUT OF SERVICE IN OUR FACILITY. SUPERVISORS & MECHANICS ADVISED HIM NOT TO DRIVE IT UNTIL THEY FIXED IT. HE DIDN'T CARE AND USED IT CAUSING A FIRE ON THE VEHICLE. WHEN EE TRIED TO COMBAT THE FIRE, STEAM AFFECTED HIS FACE PRODUCING IRRITATION. THE CO HAS SUSPENDED THE EE FOR 2 WEEKS.

Struck against stationary object

EE WAS CHANGING JAW DIES AND ADJUSTING SCREW THE MULTIPLIER CAUGHT PART OF HIS MIDDLE FINGER ON RIGHT HAND CAUSING BLEEDING.

2002 · 4 incidents

Unclassified, insufficient data

EE COMPLAIN ABOUT A PAIN IN HIS BACK.

Fall from machine

THE EE WAS WORKING ON THE HYDRAULIC SYSTEM OF A LOADER WHEN HE LOOSENED UP A UNIT, HE LOST HIS BALANCE FALLING ON HIS BACK HAVING A KNEE INJURY.

Struck by... (Not Elsewhere Classified)

EE WAS DRILLING A HOLE INTO METAL TIP OF BATTERY CABLE TO MAKE THE HOLE BIGGER. WHEN DOING SO THE GIMLET GOT STUCK AND THE METAL TIP STARTED TO SPIN. EE WAS HOLDING DOWN THE TIP WITH HIS FINGE R AND IT GOT HIT BY THE TIP AS IT SPUN.

Fall to lower level, (Not Elsewhere Classified)

HE WAS STANDING ON THE D-9 TRACKS BECAUSE HE WAS INSTALLING A SCREW ON ONE OF THE DOORS. WHEN HE MOVED HIS LEFT FOOT SLIPPED, & HIS LEG WAS NOW CAUGHT BETWEEN THE TRACKS & THE BLADES SUPPORT. ALL THE BODY WEIGHT WAS ON HIS LEFT LEG & THIS WAS ON HIS LEFT LEG & THIS WAS THE CAUSE OF THE INJURY.

2001 · 4 incidents

Struck against a moving object

WHILE OPERATING THE TRACK DRILL STARTED TO RAIN HEAVILY, SO HE DECIDED TO MOVE FROM THE SITE GOING BACKWARDS. NOT NOTICING THAT THE RIGHT SIDE OF THE TRACK DRILL WAS OFF THE TRAIL CAUSING THE TACK DRILL TO ROLL OVER.

Struck by falling object

WHILE PAINTING A HOPPER A FALLING ROCK ABOUT 1 1/2"" FROM A CONVEYER HIT HIM AT THE WRIST. THE WORKER HAD A PREVIOUS FRACTURE AT THAT WRIST.

Over-exertion (Not Elsewhere Classified)

WHILE WORKING WITH A BLASTER, HE FELT A SHARP PAIN IN HIS RIGHT ARM WHICH CAUSED HIM TO STOP WORKING. THE EMPLOYEE COMPLAINED OF PAIN IN HIS RIGHT ARM APPROX ONE MONTH BEFORE THIS ACCIDENT.

Caught in, under or between a moving and a stationary object

THE OPERATOR WAS PREPARING TO MOUNT INTO THE CABOF THE TRACK DRILL AND A STRONG WIND BLEW THE DOOR, PINCHING HIS FINGER AND PRODUCING A CUT.

2000 · 1 incident

Struck by... (Not Elsewhere Classified)

THE WELDER WAS DISASSEMBLING SOME ROLLERS ON A CONVEYOR TO BE REPLACED IN AN AREA MORE OR LESS 4 FEET IN HEIGHT. HE DIDN'T KNOW ASSISTANT WELDER WAS THERE WHEN HE DROPPED/THREW THE ROLLER HITT ING THE ASSISTANT WELDER.