Mining Incidents

Clayton AggregatesMetal/Nonmetal

clayton, Contra Costa County, CA · Active
MSHA Mine ID: 0400159
Fatalities
0
Total incidents
20
Years on record
2000–2021
Latest incident
Dec 2021
No fatalities recorded at this mine.

Reportable incidents

20 on file

2021 · 1 incident

Over-exertion in lifting objects

Employee was clearing rock from crusher when they felt a tweak in their shoulder. It was initially treated with first aid. When the condition didn't improve, the employee received an MRI. The event became reportable on 2/9/2022 when a doctor placed EE on total disability following the results of the MRI.

2018 · 2 incidents

Caught in, under or between a moving and a stationary object

EE was removing nuts from the secondary crusher frame with a 1"" pneumatic impact wrench. When the nut broke free the rotational force of the pneumatic wrench spun the nut up the threads pinning EE's right index finger between the handle on the impact wrench and the overhang of the crusher frame. EE received 7 sutures to the outside of the right index finger.

Fall to lower level, (Not Elsewhere Classified)

Temporary scaffolding staircase was removed. Area was not safely cordoned off correctly. Employee fell from 7' elevated height at doorway with no stairs. Employee suffered bruising and laceration.

2017 · 1 incident

Over-exertion in pulling or pushing objects

Injured employee examined what needed to be cleaned on the transfer screen to move the gates. EE was in a squatting position and barred the material that was stopping the gates from moving. In the squatting position EE grabbed the chute opening with hands out and when EE pulled self up EE felt a sharp pain in back and a popping sound.

2014 · 1 incident

Struck against a moving object

An employee was hauling material to the dump grizzly, when they felt a pain in the lower back. The initial diagnosis was a strain to the lower back and they were returned to regular duties on 8/16/2014. No medical treatment was given at this time. The employee was further diagnosed and was removed from the duties on 6/9/2015.

2013 · 2 incidents

Struck against a moving object

From a previous injury that was being treated by the insurance carrier, the employee stated both knees and the back was getting sore again over the past few days. The employee was conducting their regular job operating the Pit Loader and Dozer periodically in the pit area.

Over-exertion (Not Elsewhere Classified)

Walking on an uneven surface while performing a pre-task inspection, left knee hyper-extended as he strode and hit a depression.

2012 · 1 incident

Over-exertion (Not Elsewhere Classified)

The employee was pumping a manual grease gun when he felt some pain in the right elbow. The employee was sent to the clinic and was diagnosed with a minor strain to the elbow. The employee was sent back to regular duty with no retractions. The modifications were given based on the California Workers Comp. criteria only.

2011 · 1 incident

Fall from ladders

Employee was climbing down into the feeder that was being installed into #2 conveyor tunnel. The 4' ""A"" frame ladder slipped from under him and he hit his right elbow and right shoulder. His left knee was reported as sore due to walking on even surfaces during this project.

2010 · 1 incident

Over-exertion (Not Elsewhere Classified)

EE was lifting two tools out of a crate and while doing so felt pain in his abdomen. A bump developed and was diagnosed as an umbilical hernia.

2009 · 3 incidents

Flash burns (welding)

Employees welding lagging onto a tail pulley, injured employee said he caught a couple of flashes during the 11 hour shift. At the end of the shift he realized that he had received a flash burn in both eyes.

Struck by falling object

Two employees were replacing a bearing on the ecentric shaft of the Noble feeder in #2 conveyor tunnel. The shaft and bearings were supported by a chain and a chain hoist. One of the chains slipped allowing the bearing to twist and drop two inches, hitting employees left thumb and breaking it.

2006 · 4 incidents

Caught in, under or between (Not Elsewhere Classified)

While operating an electrical hoist he caught his hand on the cable. His left ring finger became caught in the block.

Over-exertion (Not Elsewhere Classified)

Employee is claiming a cummulative trauma to left shoulder, specifically left shoulder rotator cuff tendonitis.

Over-exertion in lifting objects

Employee was lifting a screen or gate when he felt pain in his low back.

Bodily reaction, (Not Elsewhere Classified)

Employee felt pain in his lower back when he bent over to connect cables from charger to welder battery.

2003 · 1 incident

Struck by flying object

EE WAS SHOVELING MATERIAL NEAR ONE OF THE CRUCHERS WHEN THE WIND BLEW DUST INTO HIS EYE.

2002 · 1 incident

Over-exertion in lifting objects

EE WAS LIFTING SCREEN AND PLACING THEM IN A RACK; HE EXPERIENCED PAIN IN HIS SHOULDER AND NECK.

2000 · 1 incident

Fall to the walkway or working surface

EE WAS PULLING ON GREASE LINE FROM SERVICE TRUCKWALKING BACKWARDS AT THE TIME & SLIPPED & FELL ON LOOSE GRAVEL IN AREA-FALLING BACKWARDS ONTO HIS BUTTOCKS. THERE WAS NO DIAGNOSIS UNTIL 4/19/00 FROM DRS.