Mining Incidents

Clayton Aggregates Metal/Non-Metal

clayton, Contra Costa Condado, CA  ·  Activa
ID de mina MSHA: 0400159

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Avísenme cuando se presente un nuevo incidente de la MSHA en Clayton Aggregates.

Muertes
0
Incidentes totales
20
Años en registro
2000–2021
Último incidente
Dec 2021
Historial de cumplimiento
Citaciones de MSHA desde 2000
200
citaciones
36
significativas y sustanciales
$43,956
multas propuestas
$42,058
pagado a la fecha
Fuente: datos de violaciones de MSHA, actualizados semanalmente.
Tasas de seguridad trimestrales
Citaciones por millón de horas trabajadas, según lo reportado a MSHA
Trimestre Horas trabajadas Citaciones S&S Por 1M hrs
2025 Q4 7,787 1 0 128.4
2025 Q3 6,687 3 0 448.6
2025 Q2 10,060 0 0 0.0
2024 Q4 2,007 0 0 0.0
2024 Q3 11,922 0 0 0.0
2024 Q2 13,696 8 2 584.1
2024 Q1 1,740 0 0 0.0
2023 Q4 2,871 0 0 0.0
Los trimestres con menos de 100,000 horas reportadas aparecen atenuados: muy pocas horas para una tasa estable.
No se registran muertes en esta mina.

Incidentes reportables

20 en archivo

2021 · 1 incidente

15 de diciembre de 2021 CA · Metal/No metálico Obrero, Herrero, Cuadrilla, Mensajero de repuestos, Peón, Recolector, Operario de mina MANEJO DE MATERIALES
Martin Marietta Northern California Aggregates,LLC · Sobreesfuerzo al levantar objetos

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 incidentes

17 de agosto de 2018 CA · Metal/No metálico Encargado de mantenimiento, Mecánico, Reparador/Encargado de servicio, Calderero, Abastecedor de combustible, Técnico de llantas, Técnico de servicio en campo MAQUINARIA
Martin Marietta Northern California Aggregates,LLC · Atrapado en, bajo o entre un objeto en movimiento y uno fijo

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.

16 de junio de 2018 CA · Metal/No metálico Ayudante de electricista RESBALÓN O CAÍDA DE PERSONA
Martin Marietta Northern California Aggregates,LLC · Caída a un nivel inferior, no clasificada en otra parte

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 incidente

20 de octubre de 2017 CA · Metal/No metálico Obrero, Herrero, Cuadrilla, Mensajero de repuestos, Peón, Recolector, Operario de mina MANEJO DE MATERIALES
Martin Marietta Northern California Aggregates,LLC · Sobreesfuerzo al jalar o empujar objetos

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 incidente

15 de agosto de 2014 CA · Metal/No metálico Conductor de camión de acarreo/fuera de carretera/carbón/mineral/mina/cantera/roca/llanta neumática, Conductor de camión de transporte TRANSPORTE MOTORIZADO
Martin Marietta Northern California Aggregates,LLC · Golpeado contra un objeto en movimiento

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 incidentes

4 de octubre de 2013 CA · Metal/No metálico Encargado de mantenimiento, Mecánico, Reparador/Encargado de servicio, Calderero, Abastecedor de combustible, Técnico de llantas, Técnico de servicio en campo TRANSPORTE MOTORIZADO
Martin Marietta Northern California Aggregates,LLC · Golpeado contra un objeto en movimiento

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.

25 de junio de 2013 CA · Metal/No metálico Encargado de mantenimiento, Mecánico, Reparador/Encargado de servicio, Calderero, Abastecedor de combustible, Técnico de llantas, Técnico de servicio en campo RESBALÓN O CAÍDA DE PERSONA
Martin Marietta Northern California Aggregates,LLC · Sobreesfuerzo, no clasificado en otra parte

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

2012 · 1 incidente

15 de octubre de 2012 CA · Metal/No metálico Engrasador, Engrasador, Aceitero, Lubricador, Aceitero de dragalina MAQUINARIA
Martin Marietta Northern California Aggregates,LLC · Sobreesfuerzo, no clasificado en otra parte

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 incidente

13 de febrero de 2011 CA · Metal/No metálico Encargado de mantenimiento, Mecánico, Reparador/Encargado de servicio, Calderero, Abastecedor de combustible, Técnico de llantas, Técnico de servicio en campo RESBALÓN O CAÍDA DE PERSONA
Martin Marietta Northern California Aggregates,LLC · Caída desde escaleras de mano

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 incidente

9 de marzo de 2010 CA · Metal/No metálico Encargado de mantenimiento, Mecánico, Reparador/Encargado de servicio, Calderero, Abastecedor de combustible, Técnico de llantas, Técnico de servicio en campo MANEJO DE MATERIALES
Martin Marietta Northern California Aggregates,LLC · Sobreesfuerzo, no clasificado en otra parte

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 incidentes

24 de octubre de 2009 CA · Metal/No metálico Encargado de mantenimiento, Mecánico, Reparador/Encargado de servicio, Calderero, Abastecedor de combustible, Técnico de llantas, Técnico de servicio en campo MAQUINARIA
Martin Marietta Northern California Aggregates,LLC · Quemaduras por destello (soldadura)

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.

3 de marzo de 2009 CA · Metal/No metálico Encargado de mantenimiento, Mecánico, Reparador/Encargado de servicio, Calderero, Abastecedor de combustible, Técnico de llantas, Técnico de servicio en campo HERRAMIENTAS MANUALES (SIN MOTOR)

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 incidentes

13 de noviembre de 2006 CA · Metal/No metálico Engrasador, Engrasador, Aceitero, Lubricador, Aceitero de dragalina MAQUINARIA
Martin Marietta Northern California Aggregates,LLC · Atrapado en, bajo o entre, no clasificado en otra parte

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

30 de octubre de 2006 CA · Metal/No metálico Encargado de mantenimiento, Mecánico, Reparador/Encargado de servicio, Calderero, Abastecedor de combustible, Técnico de llantas, Técnico de servicio en campo TRASTORNOS (TRAUMA REPETIDO)
Martin Marietta Northern California Aggregates,LLC · Sobreesfuerzo, no clasificado en otra parte

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

18 de octubre de 2006 CA · Metal/No metálico Encargado de mantenimiento, Mecánico, Reparador/Encargado de servicio, Calderero, Abastecedor de combustible, Técnico de llantas, Técnico de servicio en campo MANEJO DE MATERIALES
Martin Marietta Northern California Aggregates,LLC · Sobreesfuerzo al levantar objetos

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

22 de junio de 2006 CA · Metal/No metálico Encargado de mantenimiento, Mecánico, Reparador/Encargado de servicio, Calderero, Abastecedor de combustible, Técnico de llantas, Técnico de servicio en campo OTRO
Martin Marietta Northern California Aggregates,LLC · Reacción corporal, no clasificada en otra parte

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

2003 · 1 incidente

10 de noviembre de 2003 CA · Metal/No metálico Dinamitero, Disparador, Pegador de tiros, Trabajador de explosivos, Cuadrilla de pólvora OTRO
Hanson Aggregates West Inc · Golpeado por objeto proyectado

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

2002 · 1 incidente

2 de abril de 2002 CA · Metal/No metálico Obrero, Herrero, Cuadrilla, Mensajero de repuestos, Peón, Recolector, Operario de mina MANEJO DE MATERIALES
Hanson Aggregates West Inc · Sobreesfuerzo al levantar objetos

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

2000 · 1 incidente

27 de marzo de 2000 CA · Metal/No metálico Engrasador, Engrasador, Aceitero, Lubricador, Aceitero de dragalina RESBALÓN O CAÍDA DE PERSONA
Hanson Aggregates, Inc. · Caída a la pasarela o superficie de trabajo

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.