Mining Incidents

Chula Vista Quarry Metal/Non-Metal

CalMat Co · Surface
Controlled by Vulcan Materials Company
San Diego, San Diego County, CA  ·  Active
MSHA Mine ID: 0404080

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Fatalities
1
Total incidents
15
Years on record
2000–2023
Latest incident
Sep 2023
Compliance record
MSHA citations since 2000
138
citations
40
significant & substantial
$128,395
proposed penalties
$128,395
paid to date
Source: MSHA violations data, updated weekly.
Quarterly safety rates
Citations per million employee-hours, as reported to MSHA
Quarter Hours worked Citations S&S Per 1M hrs
2025 Q4 17,912 0 0 0.0
2025 Q3 22,898 0 0 0.0
2025 Q2 24,310 4 1 164.5
2025 Q1 16,669 0 0 0.0
2024 Q4 3,593 3 0 835.0
2024 Q1 17,633 1 1 56.7
2023 Q4 15,278 0 0 0.0
2023 Q2 25,188 5 0 198.5
Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.

Fatalities at this mine

1 recorded
June 22, 2023 CA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer Fatality · MACHINERY
CalMat Co · Struck against a moving object

Machine operator was operating a CAT D9T dozer clearing overburden material from a bench. Operator reversed the machine backwards an estimated 200-300 ft. at a high speed without looking back and without responding to honking from another machine, per witness testimony. Machine fell off an edge. Operator was pronounced dead at the scene. Machine is total loss.

Reportable incidents

14 on file (excluding fatalities above)

2023 · 2 incidents

September 28, 2023 CA · Metal/Non-Metal miner, prospector, nec STEPPING OR KNEELING ON OBJECT
CalMat Co · Over-exertion (Not Elsewhere Classified)

Employee reports as they were descending the water truck their right foot was not placed properly on the equipment's step causing their right foot to roll as they stepped to the ground. Employee was diagnosed with a closed nondisplaced fracture of right foot.

May 3, 2023 CA · Metal/Non-Metal miner, prospector, nec MACHINERY
CalMat Co · Contact with hot objects or substances

Employee was climbing out of a chute with a lit torch in left hand when they swiped their right hand on the torch. Employee sustained a third degree burn to the right hand.

2022 · 1 incident

March 16, 2022 CA · Metal/Non-Metal crane operator, mobile equipment operator (meo), dragline operator, dropball operator, rigger HANDLING OF MATERIALS
CalMat Co · Over-exertion (Not Elsewhere Classified)

EE was exiting the crane cab, up and onto the crane deck when the EE caught their foot on an operational pedal; in the event the EE grabbed a cab door handle thus swinging the EE into the crane deck. The EE injured the right shoulder and knee in the while exiting up and onto the deck.

2021 · 1 incident

October 25, 2021 CA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
CalMat Co · Struck by falling object

During the installation of rebar for the surge tunnel, a piece of #10 rebar was being placed and dropped. The bar was being installed by several men on a wall. The bar that fell was about 51'-0 long. It was being tied horizontally. When they were handing the bar across it slipped out and fell, landing on EE's wrist.

2019 · 1 incident

October 3, 2019 CA · Metal/Non-Metal miner, prospector, nec POWERED HAULAGE
CalMat Co · Struck against a moving object

On 11/18/19 employee was diagnosed with a left chest wall contusion, left hip contusion, and acute costochondritis, and placed on restricted duty. On 10/3/19 employee was jarred inside the manlift basket resulting in pain in the chest.

2013 · 1 incident

October 24, 2013 CA · Metal/Non-Metal coal/ore shovel operator, shoveler, power shoveler MACHINERY
CalMat Co · Struck against a moving object

On 11-14-13 the employee requested medical treatment, was taken to the Company clinic and was placed on restricted duty which is being accommodated. The employee alleged that operating the excavator and possibly the bobcat caused pain in his lower back.

2012 · 1 incident

July 2, 2012 CA · Metal/Non-Metal outside foreman, leadman HANDTOOLS (NONPOWERED)
CalMat Co · Fall to the walkway or working surface

Employee requested medical treatment on July 9th and was placed on restricted duty. Employee stated he was turning water valve using a wrench. During the process, the wrench was stuck and when he applied additional pressure, the wrench slipped off the valve and alleged he fell backwards. Diagnosed with lumbosacral sprain, lower and upper back contusion(s), and back abrasion.

2011 · 2 incidents

August 22, 2011 CA · Metal/Non-Metal quality control technician, laboratory technician, laboratory assistant HANDLING OF MATERIALS
CalMat Co · Over-exertion in lifting objects

The employee requested and received a medical evaluation by a company physician on 8/31/11. The employee was placed on modified duty and was diagnosed with a L-shoulder sprain. The employee alleges that he experienced pain to his L-shoulder when he lifted sample buckets.

July 22, 2011 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
CalMat Co · Struck by... (Not Elsewhere Classified)

Employee went to a dentist on 7/25/11 which required treatment/procedure beyond first aid. An unattached braided cable and shackle struck employee's lower lip and caused a lip laceration and fractured tooth.

2010 · 1 incident

July 22, 2010 CA · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator POWERED HAULAGE
Otay Valley Rock, LLC · Struck against a moving object

Loader operator struck a rock buried in the ground jarring the loader causing back pain.

2006 · 1 incident

2005 · 1 incident

December 22, 2005 CA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Hanson Aggregates Pacific Southwest Inc · Struck by... (Not Elsewhere Classified)

The employee was shoveling to clean up around a stockpile. A rock rolled down from the stockpile striking the employee on the left ankle/foot. Initially, the injury was thought to be first aid only. On 1/30/06 the employee went for his third medical evaluation with a fourth evaluation scheduled within 2-3 weeks from 1/30/06.

2004 · 1 incident

May 10, 2004 CA · Metal/Non-Metal blaster, shooter, shotfirer, explosive worker, powder gang/monkey MACHINERY
Hanson Aggregates Pacific Southwest Inc · Caught in, under or between a moving and a stationary object

Adding extra steel length to drill steel - pinched inside of right thumb when coupling.

2000 · 1 incident

May 16, 2000 CA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Hanson Aggregates Pacific Southwest Inc · Over-exertion (Not Elsewhere Classified)

EE WAS CLEARING THE TAIL PULLEY OF THE CONVEYOR WHEN HE WAS SHOVELING HE ACCIDENTLY HIT THE CONCRETE WITH THE SHOVEL AND BROKE HIS ELBOW.