Mining Incidents

San Emidio Plant Metal/Non-Metal

CalMat Co · Surface
Controlled by Vulcan Materials Company
Mettler, Kern County, CA  ·  Active
MSHA Mine ID: 0401800

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Fatalities
1
Total incidents
21
Years on record
2000–2017
Latest incident
Sep 2017
Compliance record
MSHA citations since 2000
125
citations
26
significant & substantial
$121,486
proposed penalties
$81,486
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 14,387 0 0 0.0
2025 Q3 3,405 5 2 1468.4
2025 Q2 15,971 0 0 0.0
2025 Q1 15,591 1 0 64.1
2024 Q4 3,436 0 0 0.0
2024 Q3 11,796 0 0 0.0
2024 Q2 14,385 0 0 0.0
2024 Q1 16,164 3 3 185.6
Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.

Fatalities at this mine

1 recorded
June 14, 2003 CA · Metal/Non-Metal mine manager, mine foreman, mine owner Fatality · MACHINERY
CalMat Co · Struck by falling object

THE VICTIM WAS POSITIONING THE WEDGE BAR AND BOLT ASSEMBLY TO SECURE THE UPPER PLATE IN A STATIONARY JAW CRUSHER. APPARENTLY THE LINER SHIFTED AND FELL, STRIKING THE VICTIM.

Reportable incidents

20 on file (excluding fatalities above)

2017 · 1 incident

September 19, 2017 CA · Metal/Non-Metal electrician, lineman ELECTRICAL
CalMat Co · Flash burns (electric)

On 9/19/17 employee sustained 1st and 2nd degree burns to both hands and right wrist and was placed on restricted duty which was accommodated. The employee was involved in an electrical arc flash incident.

2016 · 1 incident

April 11, 2016 CA · Metal/Non-Metal drill helper HOISTING
CalMat Co · Struck by powered moving object

Elevator struck employee on left upper thigh causing contusion.

2014 · 1 incident

May 20, 2014 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
CalMat Co · Over-exertion (Not Elsewhere Classified)

On 5/30/14 the employee requested medical treatment, was taken to the company clinic and was placed on restricted duty which is being accommodated. During a repair, the employee stepped off a structure and twisted his left knee. Employee was diagnosed with a left knee strain.

2008 · 4 incidents

December 1, 2008 CA · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver POWERED HAULAGE
CalMat Co · Struck against a moving object

The employee went to the company clinic on 12/2/08 and was provided a lumbar support as well as returned to full duty. While driving the VMC haul truck in the plant pit, he hit a bump, causing the air ride seat to bottom out, resulting in a lumbosacral spine strain.

August 1, 2008 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech POWERED HAULAGE
CalMat Co · Struck by falling object

The employee went to the company clinic on 8/2/08 and was diagnosed with a R-hand accessory digit nail plate avulsion and fracture. While the employee repositioned forks on a forklift, a fork moved downward and crushed his second R-thumb accessory digit. The employee was returned to full duty.

May 28, 2008 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
CalMat Co · Struck by flying object

The employee went to the Company clinic on 5/28/08 and received ten stitches for a left hand laceration. The employee was placing the radiator of a Peterbuilt yard truck when the spring from the hood came off and hit the employee on the left hand. The employee was released to regular work without restrictions.

May 21, 2008 CA · Metal/Non-Metal crane operator, mobile equipment operator (meo), dragline operator, dropball operator, rigger HANDLING OF MATERIALS
CalMat Co · Struck by... (Not Elsewhere Classified)

The employee went to company clinic on 5/21/08 and received steri strips to keep wound closed. The employee attempted to re-loop drag cable but the cable came out and struck the right side of his face resulting in a right cheek laceration. The employee was returned to full duty on 5/21/08 by company physician.

2006 · 4 incidents

April 4, 2006 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 see the company doctor on 4/4/2006 and was placed on restricted duty. While cutting rubber with a utility knife, the knife slipped causing a laceration to R-hand, which required stitches.

April 3, 2006 CA · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver POWERED HAULAGE
CalMat Co · Struck against a moving object

The employee went to see the company doctor on 4/4/2006 and was placed on restricted duty. While driving the yard truck at the plant, the steering wheel moved suddenly causing the truck bed to tip over, resulting in a fracture to the employees R-pinky finger due to grabbing the steering wheel to regain control of the vehicle.

March 6, 2006 CA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator SLIP OR FALL OF PERSON
CalMat Co · Fall to the walkway or working surface

The employee went to see the company doctor on 3/7/06 and was placed on restricted duty. While cleaning area with the backhoe, the employee lost footing on loose gravel, slipped and fell, causing a sprain to R-shoulder.

February 21, 2006 CA · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver POWERED HAULAGE
CalMat Co · Struck against a moving object

On 2/21/06 the employee went on a personal leave and had surgery around 2/25/2006. On 3/15/2007 Vulcan Materials Company received the DWC Form from the employee informing us it was a work related injury. The employee claimed he injured lower back due to the bouncing of the truck while driving (ALLEGED).

2005 · 1 incident

February 10, 2005 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
CalMat Co · Over-exertion in lifting objects

Employee went to see company doctor on 3/29/05 because at the time of accident (2/10/05) he didn't feel necessary, however, his shoulder became irritated and employee wanted to see the company doctor; The employee has been returned to full duty. While lifting a hydraulic pump, the employee strained his R-shoulder.

2004 · 1 incident

February 12, 2004 CA · Metal/Non-Metal NO VALUE FOUND
CalMat Co · No Value Found

WHILE RUNNING DRAGLINE DRAGGING BANK, THE CABLE BROKE AND FLEW THROUGH THE OPEN WINDOW STRIKING EMPLOYEE'S LEFT ELBOW AND BOTH HANDS CAUSING LACERATIONS AND A CONTUSION. EMPLOYEE WENT TO SEE C OMPANY DOCTOR, STITCHES WERE APPLIED AND HE WAS PLACED ON RESTRICTED DUTY. (EMPLOYEE QUIT THE NEXT DAY).

2003 · 2 incidents

April 30, 2003 CA · Metal/Non-Metal welder (shop) STRIKING OR BUMPING
CalMat Co · Struck against stationary object

EE WENT TO SEE THE COMPANY DOCTOR ON 5-1-03, STITCHES WERE APPLIED AND EE WAS RETURNED TO FULL DUTY. EE WAS WALKING TO HIS SERVICE TRUCK AND STRUCK HIS R-FOREARM ON THE COMPANY SERVICE TRUC K WHICH CAUSED A LACERATION.

January 23, 2003 CA · Metal/Non-Metal NO VALUE FOUND
CalMat Co · No Value Found

EE WENT TO SEE CO. DR. ON 1/23/03 & WAS PLACED ON RESTRICTED DUTY. EE CLAIMS THAT HIS NORMAL JOB DUTIES AGGRAVATED HIS R KNEE WHICH HE INJURED WHILE WORKING FOR ANOTHER COMPANY IN 1981. (ALLEGED)

2002 · 1 incident

December 4, 2002 CA · Metal/Non-Metal welder (shop) MACHINERY
CalMat Co · Struck by falling object

EMPLOYEE WENT TO SEE COMPANY PHYSICIAN ON 12-4-02 AND WAS PLACED ON RESTRICTED DUTY. EE USING A 9" HAND GRINDER ON A 10" I BEAM, WHILE GRINDING THE BEAM SHIFTED OFF SUPPORT ONTO RIGHT FOOT WHI CH CAUSED A FRACTURE TO RIGHT FOOT.

2000 · 4 incidents

August 25, 2000 CA · Metal/Non-Metal greaser, grease man, oiler, lube man, dragline oiler HANDLING OF MATERIALS
CalMat Co · Struck against stationary object

HAND SLIPPED ON LATCH OF ROLL-UP DOOR WHILE EMPLOYEE WAS CLOSING DOOR. HE WENT TO SEE A DOCTOR ON 8/25/00; STITCHES WERE APPLIED TO HIS LEFT PINKY FINGER.

June 13, 2000 CA · Metal/Non-Metal truck driver STEPPING OR KNEELING ON OBJECT
CalMat Co · Struck against stationary object

EE WENT TO SEE THE DR ON 6/14/00 AND WAS PLACED ON RESTRICTED DUTY. WHILE CLEANING CAT WALK WITH SHOVEL EE STEPPED ON A ROCK, FELL TO THE CATWALK AND STRAINED HIS BACK.

February 18, 2000 CA · Metal/Non-Metal greaser, grease man, oiler, lube man, dragline oiler SLIP OR FALL OF PERSON
CalMat Co · Over-exertion (Not Elsewhere Classified)

EE WENT TO SEE DR. ON 2-22-00 AND WAS PLACED ON RESTRICTED DUTY. EE SLIPPED WHILE PICKING OUT A CHUTE UNDER SHAKER AND SPRAINED LEFT ANKLE.

February 9, 2000 CA · Metal/Non-Metal beltman, conveyor man, conveyor belt worker, mobile bridge carrierman, feeder operator, conveyor rider STEPPING OR KNEELING ON OBJECT
CalMat Co · Struck against stationary object

INJURY NOT REPORTED UNTIL 2-15-00 WHEN EE WENT TO SEE A DR, WHO PLACED HIM ON RESTRICTED DUTY. WHILE RUNNING TO THE CONVEYOR, EE SLIPPED ON A ROCK AND SPRAINED HIS 1-ANKLE.