Mining Incidents

Maitri Sand and Gravel Metal/Non-Metal

Corona, Riverside County, CA  ·  Active
MSHA Mine ID: 0404157

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Fatalities
0
Total incidents
24
Years on record
2001–2024
Latest incident
Sep 2024
Compliance record
MSHA citations since 2000
407
citations
97
significant & substantial
$235,535
proposed penalties
$223,457
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 11,932 2 0 167.6
2025 Q3 2,080 0 0 0.0
2025 Q2 1,880 3 0 1595.7
2025 Q1 1,560 0 0 0.0
2024 Q3 3,478 6 2 1725.1
2024 Q2 39,911 0 0 0.0
2023 Q3 3,717 9 0 2421.3
2023 Q2 38,080 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

24 on file

2024 · 2 incidents

September 26, 2024 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech STEPPING OR KNEELING ON OBJECT
Chandler Aggregates Inc · Struck against stationary object

Mechanic was descending a two rung step ladder with a part in EE's hands. EE reached the floor and stepped on a part which was on the ground and rolled EE's ankle.

July 18, 2024 CA · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver POWERED HAULAGE
Chandler Aggregates Inc · Struck against a moving object

EE was operating an articulating haul truck when EE hit a bump and EE's back began to hurt. EE clocked out and went to EE's personal urgent care facility. EE reported EE's injury to the company July 23, 2024.

2023 · 1 incident

February 24, 2023 CA · Metal/Non-Metal beltman, conveyor man, conveyor belt worker, mobile bridge carrierman, feeder operator, conveyor rider SLIP OR FALL OF PERSON
Chandler Aggregates Inc · Over-exertion (Not Elsewhere Classified)

Miner walked out of parts bin and slipped on wet concrete pad. Miner experienced pain in hamstring area several days after the fall. Miner did not report injury to a supervisor until 3/8/23.

2022 · 1 incident

May 25, 2022 CA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Chandler Aggregates Inc · Absorption of radiations, caustics, toxic and noxious substances

Miner was removing old pipe to be discarded and was bitten by a snake on the right hand.

2021 · 1 incident

June 11, 2021 CA · Metal/Non-Metal dry screening plant operator, screen house operator STRIKING OR BUMPING
Chandler Aggregates Inc · Struck against stationary object

Plant operator was working at a conveyor transfer point when the operator stood up from a kneeling position, knee was lacerated by a piece of steel.

2020 · 3 incidents

November 24, 2020 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Chandler Aggregates Inc · Struck against stationary object

Mechanic was working on an excavator when the impact gun EE was using suddenly moved and slammed EE's finger into part of the machine.

August 8, 2020 CA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator SLIP OR FALL OF PERSON
Chandler Aggregates Inc · Fall from ladders

Plant operator was descending a fixed ladder. Operator assumed they had reached the last ladder rung when they were in fact another step from the bottom. The operator jumped from the ladder and twisted their back.

March 6, 2020 CA · Metal/Non-Metal FIRE
Chandler Aggregates Inc · Accident type, without injuries

Cat 775G Haul truck #3-74 dumped material into hopper and began to move away from dumping chute when fire started in engine compartment. Operator immediately exited machine without injury and fire was extinguished by nearby water truck.

2018 · 2 incidents

August 16, 2018 CA · Metal/Non-Metal greaser, grease man, oiler, lube man, dragline oiler HANDLING OF MATERIALS
Chandler Aggregates Inc · Struck by... (Not Elsewhere Classified)

Equipment greaser was greasing haul truck when ee attempted to align the grease hose from the grease gun into the grease receptacle. Grease was injected into skin when ee activated the grease gun.

April 27, 2018 CA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Chandler Aggregates Inc · Caught in, under or between a moving and a stationary object

Employee injured finger tip while installing pin in bumper of truck.

2017 · 2 incidents

November 28, 2017 CA · Metal/Non-Metal water truck operator FIRE
Chandler Aggregates Inc · Contact with hot objects or substances

Operator received burns to left hand as a result of a fire near the cab of the Caterpillar 770 water truck.

October 9, 2017 CA · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDLING OF MATERIALS
Chandler Aggregates Inc · Struck by... (Not Elsewhere Classified)

Employee got hydraulic oil in eye while conducting a pre-shift inspection. Eye did not bother the employee initially, but became irritated a few days later.

2015 · 1 incident

September 3, 2015 CA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Chandler Aggregates Inc · Struck by... (Not Elsewhere Classified)

Employee was helping a co-worker position a small metal plate, which slipped and cut right pinky finger.

2012 · 1 incident

August 8, 2012 CA · Metal/Non-Metal ledgeman/hand, quarry man SLIP OR FALL OF PERSON
Chandler Aggregates Inc · Over-exertion (Not Elsewhere Classified)

Employee experienced a strain of the lower back while exiting skid-steer tractor.

2011 · 1 incident

June 14, 2011 CA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer POWERED HAULAGE
Chandler Aggregates Inc · Struck against a moving object

Employee experienced neck pain while operating haul truck.

2010 · 2 incidents

May 20, 2010 CA · Metal/Non-Metal ledgeman/hand, quarry man ELECTRICAL
Chandler Aggregates Inc · Flash burns (electric)

Employee received a burn to his left forearm when energizing a circuit.

2009 · 2 incidents

October 26, 2009 CA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDTOOLS (NONPOWERED)
Chandler Aggregates Inc · Over-exertion (Not Elsewhere Classified)

Employees claims he pulled a muscle in a his back while shoveling.

August 5, 2009 CA · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver ALL OTHER OCCUPATIONAL ILLNESSES
Chandler Aggregates Inc · (Not Elsewhere Classified)

Employee became bored driving a pit truck.

2008 · 2 incidents

April 24, 2008 CA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman OTHER
Chandler Aggregates Inc · (Not Elsewhere Classified)

Employee had a seizure while on the clock operating a haul truck. We don't think this is chargeable, but wanted to report it to be on the safe side, just in case. Employee later failed drug test, and was terminated.

January 22, 2008 CA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer SLIP OR FALL OF PERSON
Chandler Aggregates Inc · Fall to the walkway or working surface

Employee was assisting in an oil change. He spilled some oil, then slipped in the oil, falling backwards and catching himself with his right wrist. Wrist is thought to be sprained at this point, but not known for sure.

2005 · 1 incident

December 30, 2005 CA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer SLIP OR FALL OF PERSON
Chandler Aggregates Inc · Fall to the walkway or working surface

EMPLOYEES HAD SHUT PLANT OFF, PREPARED FOR THE WEEKEND, AND WERE THROWING A FOOTBALL AROUND. EMPLOYEE FELL BACKWARDS REACHING FOR THE BALL, HITTING HIS HEAD ON THE GROUND. HE WAS TAKEN TO INLAND VALLEY AND LATER TRANSFERRED TO LOMA LINDA HOSPITAL. HE PASSED AWAY AT LOMA LINDA HOSPITAL AT 1:05 PM 12/31/05.

2004 · 1 incident

May 22, 2004 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
Chandler Aggregates Inc · Fall to the walkway or working surface

Employee was carrying a strip of plastic, slipped in a muddy spot on decking, and fell to one knee. Employee's left knee hit the ground. Employee has not missed any work, but has now been referred to orthopedic specialist for further evaluation.

2001 · 1 incident

September 28, 2001 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Chandler Aggregates Inc · Struck against stationary object

EE WAS MOVING SHIMS, CUT FINGER ON A SHARP EDGE.