Mining Incidents

RELIANCE PLANT Metal/Non-Metal

CalMat Co · Surface
Controlled by Vulcan Materials Company
Irwindale, Los Angeles County, CA  ·  Active
MSHA Mine ID: 0403200

Watch this mine

Email me when a new MSHA incident is filed at RELIANCE PLANT.

Fatalities
0
Total incidents
37
Years on record
2000–2024
Latest incident
Sep 2024
Compliance record
MSHA citations since 2000
88
citations
18
significant & substantial
$32,781
proposed penalties
$26,542
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 16,132 0 0 0.0
2025 Q2 17,559 0 0 0.0
2025 Q1 4,376 0 0 0.0
2024 Q4 4,210 0 0 0.0
2024 Q3 15,377 0 0 0.0
2024 Q2 15,912 1 0 62.8
2023 Q4 19,070 2 1 104.9
2023 Q3 4,976 0 0 0.0
Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.
No fatalities recorded at this mine.

Reportable incidents

37 on file

2024 · 2 incidents

September 5, 2024 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech DISORDERS (PHYSICAL AGENTS)
CalMat Co · Contact with heat

Repairman reported experiencing symptoms of heat illness. Emergency Medical Services were dispatched to assess the employee. At the employee's request, the employee was transported to the emergency room for further evaluation where employee was placed off work for 1 day.

June 24, 2024 CA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer DISORDERS (REPEATED TRAUMA)
CalMat Co · Over-exertion (Not Elsewhere Classified)

On 7/10/24, operator reported that turning the knobs on the loadout system caused a cyst on EE's right index finger over a span of two days. The medical evaluation diagnosed EE with a ganglion cyst of the right finger. The employee was cleared to full duty with no restrictions. However, during a recent appointment on 8/20/24, the employee was referred for physical therapy.

2020 · 2 incidents

September 21, 2020 CA · Metal/Non-Metal sweeper operator OTHER
CalMat Co · (Not Elsewhere Classified)

Symptoms experienced were dizziness and blurred vision. EMS was summoned for precautionary assessment due to personal health condition. EMS decided to transport employee to hospital for evaluation. EE remains off work. The MSHA Investigator requested an MSHA 7000-1 be completed indicating the illness was non-work related.

August 4, 2020 CA · Metal/Non-Metal welder (non-shop) MACHINERY
CalMat Co · Contact with hot objects or substances

On August 4, 2020 the employee struck a welding rod on the top side of EE's right hand in the thumb area causing an arching burn. The employee was returned to work without restrictions. On November 9, 2020, the employee was prescribed work restrictions following surgery to repair nerve damage.

2017 · 1 incident

August 3, 2017 CA · Metal/Non-Metal sweeper operator DISORDERS (REPEATED TRAUMA)
CalMat Co · (Not Elsewhere Classified)

On November 2, 2020, it was learned, through the litigation process, that an alleged loss of hearing was found to have industrial causation.

2015 · 1 incident

September 14, 2015 CA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer MACHINERY
CalMat Co · Struck by... (Not Elsewhere Classified)

On 9/14/15 the employee was taken to the Company clinic, received stitches for a left eye orbit laceration and was released to regular work on 9/15/15. The employee was struck in the orbit of his left eye by a drag cable during an installation and sustained a laceration.

2014 · 1 incident

March 29, 2014 CA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator POWERED HAULAGE
CalMat Co · Struck by... (Not Elsewhere Classified)

On 4/02/14, the employee requested medical treatment and was placed on modified duty which was accommodated. A conveyor belt flopped loose during a repair and made contact with the employee's hard hat. The Company physician diagnosed the employee with a head contusion and cervical spine strain.

2011 · 1 incident

July 21, 2011 CA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer SLIP OR FALL OF PERSON
CalMat Co · Fall onto or against objects

The employee went to the company clinic on 8/1/11 and was placed on restricted duty. The employee reported that he lost his footing, fell and struck his R-knee cap on a protruding 5/8" bolt that secured the dust pan.

2009 · 3 incidents

November 14, 2009 CA · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver HANDTOOLS (NONPOWERED)
CalMat Co · Struck by... (Not Elsewhere Classified)

The employee went to the company clinic on 11/14/09 and was placed on restricted duty. The employee was using a putty knife to remove a decal, when the knife tore through the decal and struck L-palm, causing a laceration that required sutures.

August 28, 2009 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech DISORDERS (PHYSICAL AGENTS)
CalMat Co · Contact with heat

The employee went to the company clinic on 8/28/09 and was taken off work. Employee was bolting pull plate on conveyor belt. As he finished, he informed his supervisor that he wasn't feeling well.

April 1, 2009 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 was taken to the Company clinic on 4/2/2009 and was placed on restricted duty which is being accommodated. He alleges that he struck his head on the transmission filler tube on a loader which resulted in a lower back strain.

2008 · 2 incidents

September 18, 2008 CA · Metal/Non-Metal electrician, lineman SLIP OR FALL OF PERSON
CalMat Co · Fall onto or against objects

The employee went to the company clinic on 9/19/08 and was placed on restricted duty. While the employee walked to collect his tools, he tripped over caution tape, lost balance and fell forward against a PVC pipe, resulting in a back sprain.

September 16, 2008 CA · Metal/Non-Metal beltman, conveyor man, conveyor belt worker, mobile bridge carrierman, feeder operator, conveyor rider HANDTOOLS (NONPOWERED)
CalMat Co · Over-exertion (Not Elsewhere Classified)

Employee went to the company clinic on 12/3/08 and was placed on restricted duty. The employee received a Right Lateral Epicondylitis (tennis elbow) to R-arm while raking through material on the conveyor belt.

2005 · 2 incidents

October 28, 2005 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
CalMat Co · Contact with hot objects or substances

The employee went to see the company doctor on 11/9/2005 and was placed on restricted duty. While cutting a chute liner with a welding torch, the flame burned through the glove and burned the employee on the right hand.

April 4, 2005 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
CalMat Co · Struck by flying object

Employee went to see company doctor on 4/4/05 and was placed on restricted work. Employee was struck in the face by a piece of metal that broke off from a damaged loader bucket tooth that was being hammered.

2004 · 2 incidents

May 26, 2004 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 see company doctor on 5/26/04. Stitches were applied and employee was returned to full duty. Employee was removing/installing teeth on loader when a small piece of steel broke and became imbedded in his R-leg.

May 5, 2004 CA · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver SLIP OR FALL OF PERSON
CalMat Co · Over-exertion (Not Elsewhere Classified)

Employee went to see company doctor on 5/10/2004 and was placed on restricted duty. Employee was performing service on dozer when he slipped due to grease/oil on sole of shoes and strained his back.

2003 · 3 incidents

October 15, 2003 CA · Metal/Non-Metal truck driver SLIP OR FALL OF PERSON
CalMat Co · Over-exertion (Not Elsewhere Classified)

WHILE STEPPING DOWN THE LADDER OF A LOADER, EMPLOYEE STEPPED ONTO HIS FUEL HOSE WITH THE HEEL OF HIS FOOT WHICH CAUSED HIM TO SPRAIN HIS RIGHT ANKLE (ALLEGED). EMPLOYEE WENT TO SEE COMPANY DOC TOR ON 10/16/03 AND WAS PLACED ON RESTRICTED DUTY.

September 2, 2003 CA · Metal/Non-Metal coal sampler HANDLING OF MATERIALS
CalMat Co · Over-exertion in pulling or pushing objects

EE WENT TO SEE COMPANY DOCTOR ON SEPT. 3, 2003 AND WAS PLACED ON RESTRICTED DUTY. EE WAS ATTEMPTING TO RELOCATE DESK TO ITS PREVIOUS LOCATION AND WHILE PUSHING UNIT, HE FELT A SHARP PAIN IN HI S LOWER BACK, RESULTING IN A LOWER BACK STRAIN.

July 26, 2003 CA · Metal/Non-Metal NO VALUE FOUND
CalMat Co · No Value Found

EMPLOYEE WENT TO HOSPITAL ON 7/26/03 AND STAYED OVERNIGHT FOR OBSERVATION. WHILE DRIVING A COMPANY CRANE IT ROLLED OVER, PARTIALLY PINNING EMPLOYEE AND EMPLOYEE RECEIVED MULTIPLE INJURIES. EMP LOYEE WAS TAKEN OFF WORK BY HOSPITAL PHYSICIAN.

2002 · 4 incidents

December 16, 2002 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
CalMat Co · Struck against stationary object

EE WENT TO SEE CO. PHYSICIAN ON 12-12-02 AND WAS PLACED ON RESTRICTED DUTY. WHILE INSTALLING SOCKET FOR 7' CRUSHER, EE CUT R FINGER ON SOCKET LINER.

August 29, 2002 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
CalMat Co · Struck against stationary object

WHILE TIGHTENING A FITTING ON THE SHOVEL HOPPER DOOR (HYDRAULIC CYLINDER) HIS WRENCH SLIPPED AND HIS HAND STRUCK 2" PLATE EDGE OF THE DOOR WHICH RESULTED IN A LACERATION AND FRACTURE TO HAND.

April 1, 2002 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)

WHILE CUTTING V-BELTS OFF OF MOTOR, EE WAS PULLING KNIFE TOWARDS HIMSELF & PUNCTURED HIS L-CHEEK. EE WENT TO SEE COMPANY DOCTOR ON 4/1/02, STITCHES WERE APPLIED & EE WAS RETURNED TO FULL DUTY.

February 6, 2002 CA · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator OTHER
CalMat Co · Absorption of radiations, caustics, toxic and noxious substances

EMPLOYEE WENT TO SEE COMPANY DOCTOR ON 2-8-02 AND WAS RETURNED TO FULL DUTY; PRESCRIPTION MEDICATION WAS PRESCRIBED. EMPLOYEE HAD AN ALLERGIC REACTION TO LUBRICANT SPRAYED ON LOADER CAB WHICH CAUSED A RASH AND SWELLING TO HIS FACE.

2001 · 9 incidents

December 18, 2001 CA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator MACHINERY
CalMat Co · Struck by flying object

WHILE HE WAS OPERATING THE JAW CRUSHER, A TOOTH FROM THE DRAGPLATE SHOT OUT OF THE JAW CRUSHER, GLANCED OFF ANOTHER OBJECT AND WENT THROUGH A CRUSHER WINDOW STATION AND STRUCK HIS SHOULDER.

October 23, 2001 CA · Metal/Non-Metal mine manager, mine foreman, mine owner HANDLING OF MATERIALS
CalMat Co · Caught in, under or between (Not Elsewhere Classified)

EE WENT TO CO. CLINIC ON 10-23-01 AND WAS PLACED ON RESTRICTED DUTY. WHILE ATTEMPTING TO ATTACH A MAGNET STROKE GAUGE TO A RUNNING SCRREN HEAD, EE'S LEFT MIDDLE FINGER WAS PINCHED BEWTWEEN MOV ING EQUIPMENT, WHICH CAUSED A CONTUSION TO HIS LEFT FINGER.

August 30, 2001 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
CalMat Co · Over-exertion in pulling or pushing objects

EMPLOYEE WENT TO THE COMPANY CLINIC ON 8/30/01 AND WAS PLACED ON RESTRICTED DUTY. WHILE REMOVING SCREEN CLOTH FROM SHAKER, WHILE PULLING ON SCREEN, EMPLOYEE STRAINED RIGHT SHOULDER.

August 7, 2001 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)

A FELLOW EMPLOYEE WAS DISCONNECTING SOCKET FROM IMPACT WRENCH; THE AIRLINE CAME LOOSE & THE AIR HOSE HIT THE OTHER EMPLOYEE ON THE MOUTH. HE SAWCOMPANY DOCTOR ON 8/7/01 & STITCHES WERE APPLIED

May 29, 2001 CA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDTOOLS (NONPOWERED)
CalMat Co · Caught in, under or between (Not Elsewhere Classified)

EMPLOYEE WENT TO SEE COMPANY DR. ON 5-29-01, RECEIVED STICHES IN HIS L-MIDDLE FINGER AND WAS RETURNED TO MODIFIED DUTY. RIGGING SLIPPED WHEN REMOVING PIN FROM GANTRY; 3 L-MIDDLE FINGERS WERE P INCHED BETWEEN COUNTERWEIGHT OF DRAGLINE WHEN CHAIN OF COMEALONG CAME LOOSE.

May 9, 2001 CA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
CalMat Co · Caught in, under or between (Not Elsewhere Classified)

EE WENT TO SEE THE COMPANY DR ON 5-9-01 AND WAS PLACED ON RESTRICTED DUTY. WHILE INSTALLING HANGER, HANGER HIT FEEDER WITH EE'S FINGER IN THE MIDDLE WHICH CAUSED A LACERATION TO R-RING FINGER.

April 21, 2001 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
CalMat Co · Fall onto or against objects

EE WENT TO SEE COMPANY DR ON 4/23/01 AND WAS PLACED ON RESTRICTED DUTY. EE SLIPPED IN MUD AND BUMPED HIS KNEE AGAINST CONVEYOR WHEN HE ATTEMPTEDTO SPLICE A BELT. THE INJURY RESULTED IN A CONTU SION TO HIS RIGHT KNEE.

March 29, 2001 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)

EE WENT TO SEE A DR ON 3/30/01 AND WAS PLACED ON RESTRICTED DUTY. WHEN PUTTING IN A CONVEYOR SECTION, EE WAS LINING UP CONVEYORS WITH A BAR. CONVEYOR SLIPPED JERKING THE BAR DOWNWARD STRAINING ROTATOR CUFF OF L SHOULDER.

March 12, 2001 CA · Metal/Non-Metal mine manager, mine foreman, mine owner HANDLING OF MATERIALS
CalMat Co · Over-exertion in lifting objects

EMPLOYEE WENT TO SEE A DOCTOR ON 3-15-01 AND WAS PLACED ON RESTRICTED DUTY. EMPLOYEE STRAINED BACK WHILE CLEANING UP LIFTING ROCKS ONTO WHEELBARROW.

2000 · 4 incidents

August 4, 2000 CA · Metal/Non-Metal truck driver POWERED HAULAGE
CalMat Co · Struck against a moving object

EMPLOYEE WAS DRIVING A WATER TRUCK AND WHILE ATTEMPTING TO MAKE A RIGHT TURN, DUE TO EXCESSIVE SPEED THE TRUCK ROLLED OVER. EMPLOYEE SAW DOCTOR8/4/00 AND WAS RETURNED TO FULL DUTY; STITCHES WERE APPLIED.

July 24, 2000 CA · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator SLIP OR FALL OF PERSON
CalMat Co · Fall from ladders

EE WENT TO SEE DR. ON 7-24 AND WAS PLACED ON RESTRICTED DUTY. EE WAS CLIMBING UP THE LADDER OF SKIP LOADER AND SLIPPED OFF OF TOP STEP, STRAINING LOWER BACK.

February 7, 2000 CA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON
CalMat Co · Fall to the walkway or working surface

WENT TO SEE DR. ON 2/8 AND WAS PLACED ON RESTRICTED DUTY. WALKING TO LOADOUT, EE FELL IN SCALE ACCESS WAY AND INJURED HIS SHIN AND LEFT SHOULDER.

January 26, 2000 CA · Metal/Non-Metal beltman, conveyor man, conveyor belt worker, mobile bridge carrierman, feeder operator, conveyor rider HANDLING OF MATERIALS
CalMat Co · Struck against stationary object

EE WENT TO SEE DR ON 1/26/00 AND WAS PLACED ON RESTRICTED DUTY. WHILE SHOVELING, REPLACEING A GUARD, HAND SLIPPED OFF GUARD AND EE SMASHED PINKY FINGER OF RIGHT HAND.