Mining Incidents

Corona Plant Metal/Non-Metal

CalMat Co · Surface
Controlled by Vulcan Materials Company
Corona, Riverside County, CA  ·  Active
MSHA Mine ID: 0405095

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Fatalities
0
Total incidents
11
Years on record
2001–2020
Latest incident
Oct 2020
Compliance record
MSHA citations since 2000
108
citations
16
significant & substantial
$15,014
proposed penalties
$13,204
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 17,833 0 0 0.0
2025 Q3 17,022 0 0 0.0
2025 Q2 3,896 0 0 0.0
2024 Q4 22,939 0 0 0.0
2024 Q3 3,860 1 0 259.1
2024 Q2 23,983 0 0 0.0
2023 Q4 14,043 0 0 0.0
2023 Q3 6,935 1 1 144.2
Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.
No fatalities recorded at this mine.

Reportable incidents

11 on file

2020 · 1 incident

October 9, 2020 CA · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver OTHER
CalMat Co · (Not Elsewhere Classified)

Independent hauler was experiencing symptoms of a heart attack and called EMS. EMS transported the hauler to the hospital. The MSHA investigator requested an MSHA 7000-1 be completed.

2014 · 1 incident

November 4, 2014 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech FIRE
CalMat Co · Contact with hot objects or substances

The employee sustained 2nd degree burns. The employee was using a cutting torch to cut a one inch thick steel plate on a fabrication table. The slag from the cutting bounced off of the table and ignited the employee's shirt resulting in 2nd degree burns to the left side of the abdomen. The employee was placed restricted duty on 11/5/14 which is being accommodated.

2009 · 1 incident

May 25, 2009 CA · Metal/Non-Metal miner, prospector, nec SLIP OR FALL OF PERSON
CalMat Co · Fall from machine

On 5/25/09 A trespasser/Non-Employee was fatally injured from an apparent fall from elevation. The trespasser/Non-Employee's death occurred in route to the hospital.

2008 · 1 incident

September 2, 2008 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
CalMat Co · Struck by... (Not Elsewhere Classified)

The employee went to the company clinic on 9/3/08 and was placed on restricted duty. A porta-power disconnect fitting came apart when pressurised and struck employee on his safety glasses, resulting in a corneal abrasion and contusion to R-eye.

2006 · 1 incident

June 2, 2006 CA · Metal/Non-Metal beltman, conveyor man, conveyor belt worker, mobile bridge carrierman, feeder operator, conveyor rider HANDLING OF MATERIALS
CalMat Co · Over-exertion in pulling or pushing objects

The employee went to see the company doctor on 6/7/2006 and was placed on restricted duty. The employee strained his lower back while lifting and carrying buckets during crusher sampling

2004 · 1 incident

August 20, 2004 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
CalMat Co · Over-exertion (Not Elsewhere Classified)

Employee went to see company doctor on 8/21/04 and was placed on restricted duty. Employee was placing various tools in a pile, wrench, screwdrivers, etc. and strained his lower back.

2003 · 2 incidents

September 19, 2003 CA · Metal/Non-Metal FIRE
CalMat Co · Accident type, without injuries

WHILE CUTTING BOLTS FROM DISCHARGE LIP WITH OXY-ACETYLEN TORCH. SLAG FELL ONTO CHUTE LINER CAUSING FIRE WHICH RESULTED IN PROPERTY DAMAGE.

May 8, 2003 CA · Metal/Non-Metal blaster, shooter, shotfirer, explosive worker, powder gang/monkey HANDLING OF MATERIALS
CalMat Co · Over-exertion (Not Elsewhere Classified)

EMULSION HOSE BECAME LODGED IN BOREHOLE. EE JERKED ON HOSE TO FREE IT AND HEARD POP IN HIS LOWER BACK.

2002 · 1 incident

March 13, 2002 CA · Metal/Non-Metal beltman, conveyor man, conveyor belt worker, mobile bridge carrierman, feeder operator, conveyor rider HANDTOOLS (NONPOWERED)
CalMat Co · Struck by... (Not Elsewhere Classified)

EE WAS USING A 20# SLEDGEHAMMER & KNOCKER WRENCH TO TIGHTEN JAW BOLTS; THE HAMMER WAS DEFLECTED CAUSING IT TO MISS THE WRENCH STRIKING FINGER CAUSING A FRACTURE & LACERATION TO L-INDEX FINGER. EE WENT TO SEE COMPANY DR ON 3/13/02 & WAS PLACED ON RESTRICTED DUTY.

2001 · 2 incidents

September 29, 2001 CA · Metal/Non-Metal welder (shop) MACHINERY
CalMat Co · Flash burns (welding)

EMPLOYEE WENT TO CLINIC ON 9/29/01 AND WAS RETURNED TO FULL DUTY AND RECEIVED PRESCRIPTION AND MEDICATION. EMPLOYEE WAS WELDING ON EXCAVATOR BUCKET WHEN HE RECEIVED FLASH BURN TO BOTH EYES.

June 21, 2001 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
CalMat Co · Struck by... (Not Elsewhere Classified)

EMPLOYEE WAS USING A KNIFE, CUTTING LEG OF SCREEN PANEL, PULLING KNIFE TOWARDS BODY AND KNIFE CONTACTED LEFT WRIST. EMPLOYEE WENT TO SEE DOCTOR ON 6-22-01, RECEIVED STITCHES AND WAS PLACED ON RESTRICTED DUTY.