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

Chula Vista Quarry has $128K in proposed MSHA penalties and $0 outstanding across 1 contested dockets, plus health sampling and the full incident record.

Watch this mine

Email me when a new MSHA incident is filed at Chula Vista Quarry.

Fatalities
1
Total incidents
28
Years on record
1983–2023
Latest incident
Sep 2023
Compliance record
MSHA citations since 2000
139
citations
40
significant & substantial
$128,395
proposed penalties
$128,395
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
73
inspections on record
1,935
inspection hours
7.2
citations per 100 inspection hours
This rate is recorded citations divided by MSHA inspection hours, per 100 hours. It reflects inspection effort, not mine size or production.
139 citations across 1,935 inspection hours.
Source: MSHA inspections data, updated weekly.

Chula Vista Quarry has $128K in proposed MSHA penalties and $0 outstanding across 1 contested dockets.

Penalty disposition
Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.
$128K
proposed penalties
$128K
current assessed
$128K
paid to date
$0
outstanding
136 assessments are final orders; 1 contested dockets.
As of the most recent assessment on 2026-02-11.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
Quarterly safety rates
Citations per million reported employee-hours. Rates begin in 2000, when MSHA's quarterly employment data starts; earlier incidents are counted but cannot be rate-adjusted. Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.
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 20,960 0 0 0.0
2024 Q4 20,597 3 0 145.7
2024 Q3 25,784 1 0 38.8
2024 Q2 24,236 2 0 82.5
2024 Q1 21,807 1 1 45.9
Show 95 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2023 Q4 19,829 0 0 0.0
2023 Q3 22,483 1 1 44.5
2023 Q2 25,188 5 0 198.5
2023 Q1 22,896 2 1 87.4
2022 Q4 22,583 0 0 0.0
2022 Q3 24,468 0 0 0.0
2022 Q2 23,711 1 1 42.2
2022 Q1 22,197 1 0 45.1
2021 Q4 22,415 0 0 0.0
2021 Q3 19,902 0 0 0.0
2021 Q2 19,125 2 1 104.6
2021 Q1 18,281 2 0 109.4
2020 Q4 20,247 0 0 0.0
2020 Q3 20,053 0 0 0.0
2020 Q2 19,184 0 0 0.0
2020 Q1 21,387 0 0 0.0
2019 Q4 20,414 1 1 49.0
2019 Q3 21,145 0 0 0.0
2019 Q2 21,728 0 0 0.0
2019 Q1 19,533 0 0 0.0
2018 Q4 17,992 0 0 0.0
2018 Q3 20,686 0 0 0.0
2018 Q2 21,386 0 0 0.0
2018 Q1 20,583 0 0 0.0
2017 Q4 19,344 2 0 103.4
2017 Q3 18,863 0 0 0.0
2017 Q2 16,110 1 0 62.1
2017 Q1 17,957 0 0 0.0
2016 Q4 16,719 1 1 59.8
2016 Q3 17,421 0 0 0.0
2016 Q2 19,348 2 1 103.4
2016 Q1 19,961 1 0 50.1
2015 Q4 19,071 0 0 0.0
2015 Q3 20,777 2 0 96.3
2015 Q2 20,405 0 0 0.0
2015 Q1 19,915 0 0 0.0
2014 Q4 17,673 0 0 0.0
2014 Q3 17,905 0 0 0.0
2014 Q2 19,614 2 0 102.0
2014 Q1 18,737 0 0 0.0
2013 Q4 17,952 0 0 0.0
2013 Q3 17,886 3 1 167.7
2013 Q2 19,356 1 0 51.7
2013 Q1 17,182 0 0 0.0
2012 Q4 17,148 0 0 0.0
2012 Q3 16,331 1 0 61.2
2012 Q2 15,196 0 0 0.0
2012 Q1 16,173 0 0 0.0
2011 Q4 16,160 0 0 0.0
2011 Q3 15,622 0 0 0.0
2011 Q2 13,945 3 0 215.1
2011 Q1 15,440 0 0 0.0
2010 Q4 77 19 10 246753.2
2010 Q3 21,135 0 0 0.0
2010 Q2 20,683 0 0 0.0
2010 Q1 18,088 17 9 939.8
2009 Q4 12,046 4 1 332.1
2009 Q3 5,657 0 0 0.0
2009 Q2 6,539 10 2 1529.3
2009 Q1 11,026 0 0 0.0
2008 Q4 13,673 1 0 73.1
2008 Q3 12,265 2 0 163.1
2008 Q2 11,123 2 1 179.8
2008 Q1 6,575 0 0 0.0
2007 Q4 3,440 2 0 581.4
2007 Q3 3,317 0 0 0.0
2007 Q2 3,448 2 0 580.0
2006 Q4 11,078 0 0 0.0
2006 Q3 10,295 1 0 97.1
2006 Q2 10,891 0 0 0.0
2006 Q1 9,188 2 0 217.7
2005 Q4 11,896 0 0 0.0
2005 Q3 10,663 0 0 0.0
2005 Q2 10,049 4 1 398.0
2005 Q1 11,951 0 0 0.0
2004 Q4 11,251 2 0 177.8
2004 Q3 12,643 0 0 0.0
2004 Q2 12,371 0 0 0.0
2004 Q1 13,498 0 0 0.0
2003 Q4 13,300 1 0 75.2
2003 Q3 12,820 0 0 0.0
2003 Q2 15,685 2 0 127.5
2003 Q1 17,543 3 0 171.0
2002 Q4 17,767 0 0 0.0
2002 Q3 17,020 8 5 470.0
2002 Q2 15,739 0 0 0.0
2002 Q1 15,781 0 0 0.0
2001 Q4 14,921 3 0 201.1
2001 Q3 16,108 0 0 0.0
2001 Q2 17,302 0 0 0.0
2001 Q1 15,734 0 0 0.0
2000 Q4 13,103 0 0 0.0
2000 Q3 13,518 2 0 148.0
2000 Q2 9,828 0 0 0.0
2000 Q1 12,125 5 1 412.4

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

27 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.

1993 · 2 incidents

February 18, 1993 CA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman OTHER
Nelson & Sloan · Struck by flying object

WHILE EMPLOYEE WAS WORKING UNDER PLANT DUST WAS BLOWING DUE TO WINDY CONDITIONS RESULTING IN A PIECE OF ROCK DUST BLOWING INTO EYE EMBEDDING INTO EYE LID.

February 16, 1993 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Nelson & Sloan · Struck by flying object

WHILE EMPLOYEE WAS WORKING ON A MINE VEHICLE IN OUR TRUCK SHOP HE WAS WELDING WHEN A PIECE OF METAL FLEW INTO EYE EMBEDDING IN EYE.

1991 · 2 incidents

December 3, 1991 CA · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver HANDLING OF MATERIALS
Nelson & Sloan · Over-exertion in lifting objects

WHILE LIFTING TAILGATE ON TRUCK EE STRAINED BACK.

February 6, 1991 CA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDTOOLS (NONPOWERED)
Nelson & Sloan · Over-exertion in wielding or throwing objects

REPLACING WORN PADDLES ON CTB PLANT AND WAS REMOVING OLD PADDLES WITH 4 LB SLEDGE HAMMER RESULTING IN A PULLED MUSCLE IN FOREARM.

1990 · 3 incidents

November 28, 1990 CA · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDLING OF MATERIALS
Nelson & Sloan · Over-exertion in lifting objects

HEMORRHOIDS RESULTING FROM USE OF HEAVY EQUIPMENT.

July 30, 1990 CA · Metal/Non-Metal crane operator, mobile equipment operator (meo), dragline operator, dropball operator, rigger MACHINERY
Nelson & Sloan · Over-exertion in pulling or pushing objects

OPERATING CRANE WITH FOOT PEDDLES RESULTING IN LEG STRAIN.

May 9, 1990 CA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator OTHER
Nelson & Sloan · Struck by flying object

WHILE CHECKING MACHINE DIRT AND SAND BLEW INTO EYE.

1989 · 5 incidents

November 13, 1989 CA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman POWERED HAULAGE
Nelson & Sloan · Struck by falling object

SHOVELING ROCKS WHEN ROCK FELL OFF BELT AND ONTO HAND.

October 1, 1989 CA · Metal/Non-Metal MACHINERY
Nelson & Sloan · Over-exertion (Not Elsewhere Classified)

WEDDING ON A CRUSHER BENT OVER FOR ABOUT 40 MIN AND STESSED UP RESULTING IN BACK PAIN. EMPLOYEE DI DNOT REPORT INJURY UNTIL9-20-89 AND MISSED NO TIME UNTIL 10-1-89.

July 27, 1989 CA · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDLING OF MATERIALS
Nelson & Sloan · Over-exertion (Not Elsewhere Classified)

WHILE CLIMBING OFF LOADER PULLED MUSCLE IN BACK.

June 19, 1989 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Nelson & Sloan · Over-exertion in pulling or pushing objects

WHILE TRYING TO LOOSEN FITTING ON WATER PIPE PULLED MUSCLE IN LOWER BACK.

April 10, 1989 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Nelson & Sloan · Struck by flying object

SPLICING A BELT AND TIGHTENING THE FLEX-COS WHEN A PIECE OF METAL FLEW INTO EYE.

1983 · 1 incident

April 23, 1983 CA · Metal/Non-Metal prep plant foreman, supervisor, mill plant supervisor, kiln supervisor FIRE
Nelson & Sloan · Contact with hot objects or substances

POURING GAS INTO WELDER MUFLER CAUGHT CONTAINER ON FIRE BURN ON RIGHT HAND AND CUT ON HEAD

For insurers, brokers, and safety consultants

The full compliance file on Chula Vista Quarry

A dated report covering the 26-year penalty trail, line-item violation pattern, contest and docket posture, rate-normalized peer benchmark, and full fatality history. Delivered as a PDF with the underlying data as CSV.