Employee dismounted from cab of hauler and planted left foot at an angle resulting in foot strain.
East Petersburg Quarry: 170 citaciones de la MSHA Metal/Non-Metal
East Petersburg Quarry tiene $58K en multas propuestas de MSHA y $1K pendientes en 1 expedientes impugnados, ademas del muestreo de salud y el registro completo de incidentes.
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Avísenme cuando se presente un nuevo incidente de la MSHA en East Petersburg Quarry.
- Muertes
- 0
- Incidentes totales
- 26
- Años en registro
- 1985–2021
- Último incidente
- Aug 2021
ⓘ
Esta tasa son las citaciones registradas divididas entre las horas de inspección de la MSHA, por cada 100 horas. Refleja el esfuerzo de inspección, no el tamaño de la mina ni la producción.East Petersburg Quarry tiene $58K en multas propuestas de MSHA y $1K pendientes en 1 expedientes impugnados.
ⓘ
Las diferencias entre las multas propuestas y las pagadas reflejan tanto acuerdos y reducciones en conferencia como montos aun adeudados. Pendiente es el saldo que se debe actualmente.ⓘ
Las proporciones se calculan sobre las citaciones que llevan la codificación de gravedad y negligencia de la MSHA; una pequeña parte de los registros no está codificada.ⓘ
Impugnar una citación ante la Comisión Federal de Revisión de Seguridad y Salud Minera es un derecho legal. Estas cifras presentan los resultados públicos de ese proceso, según el archivo de Violaciones Impugnadas de MSHA.- Conciliadas 11 · 100%
ⓘ
Una citación Significativa y Sustancial cuenta como sobreviviente cuando la conciliación o la decisión del juez mantuvo la designación, o cuando la impugnación fue desestimada o quedó en rebeldía y la citación quedó como emitida. Las citaciones anuladas o retiradas, y las conciliaciones que quitaron la designación, cuentan en contra.ⓘ
Una reducción o desestimación ante la Comisión es un resultado legítimo de impugnar una multa propuesta. Las cifras son el monto propuesto y el monto confirmado en la decisión del expediente.| Expediente | Decisión | Juez | Año | Propuesta / confirmada |
|---|---|---|---|---|
| PENN 2008-327M | Settlement | Bulluck | 2009 | $17K → $3K |
ⓘ
Una muestra es una medición de cumplimiento en un momento dado, no un historial de exposición individual. Estas cifras describen registros de muestreo de MSHA y no establecen causalidad ni dosis personal.Contaminantes en minas de metal y no metal (muestras personales)
ⓘ
Muchas muestras son mediciones de detección de sustancias sin límite de exposición aplicable; se cuentan como muestras pero se excluyen de toda cifra de exceso. Los porcentajes de exceso usan solo muestras con límite establecido.
Última medición: 2025-10-08
ⓘ
Muchas muestras son mediciones de detección de sustancias sin límite de exposición aplicable; se cuentan como muestras pero se excluyen de toda cifra de exceso. Los porcentajes de exceso usan solo muestras con límite establecido.- Nuisance dust, total, <1% Qtz161 en exceso
- Quartz, respirable, >1% Qtz7
- Respirable dust, <.1mg5
- Arsenic fumes1
Ver los análisis individuales (43)
| Fecha | Contaminante | Concentración | Límite | Conc / límite | Ocupación |
|---|---|---|---|---|---|
| 2023-05-03 | Nuisance dust, total, <1% Qtz | 16.15 | 10 | 1.62 | Utility Man |
| 2025-10-08 | Nuisance dust, total, <1% Qtz | 1.26 | 10 | 0.13 | Dry Screen Plant Operator |
| 2025-10-08 | Nuisance dust, total, <1% Qtz | 2.78 | 10 | 0.28 | Laborer, Bullgang |
| 2024-05-01 | Nuisance dust, total, <1% Qtz | 0.56 | 10 | 0.06 | Laborer, Bullgang |
| 2024-05-01 | Nuisance dust, total, <1% Qtz | 0.52 | 10 | 0.05 | Truck Driver |
| 2024-05-01 | Nuisance dust, total, <1% Qtz | 0.9 | 10 | 0.09 | Crusher Oper/Worker |
| 2023-06-21 | Nuisance dust, total, <1% Qtz | 8.02 | 10 | 0.80 | Utility Man |
| 2023-05-03 | Nuisance dust, total, <1% Qtz | 4.78 | 10 | 0.48 | Utility Man |
| 2023-05-03 | Nuisance dust, total, <1% Qtz | 2.88 | 10 | 0.29 | Crusher Oper/Worker |
| 2023-05-03 | Nuisance dust, total, <1% Qtz | 7.11 | 10 | 0.71 | Utility Man |
| 2021-08-04 | Respirable dust, <.1mg | 0 | Truck Driver | ||
| 2021-08-04 | Nuisance dust, total, <1% Qtz | 0.57 | 10 | 0.06 | Crusher Oper/Worker |
| 2021-08-04 | Nuisance dust, total, <1% Qtz | 0.45 | 10 | 0.05 | Truck Driver |
| 2021-08-04 | Quartz, respirable, >1% Qtz | 0.24 | Utility Man | ||
| 2021-08-04 | Respirable dust, <.1mg | 0 | Supervisor, Co. Official | ||
| 2018-04-25 | Nuisance dust, total, <1% Qtz | 1.03 | 10 | 0.10 | Crusher Oper/Worker |
| 2018-04-25 | Nuisance dust, total, <1% Qtz | 0.58 | 10 | 0.06 | Front-end Loader Operator |
| 2018-04-25 | Nuisance dust, total, <1% Qtz | 0.6 | 10 | 0.06 | Washer Operator |
| 2018-04-25 | Nuisance dust, total, <1% Qtz | 0.72 | 10 | 0.07 | Truck Driver |
| 2018-04-25 | Arsenic fumes | 0 | 500 | 0.00 | Welder, etc. |
| 2018-04-25 | Beryllium fumes | 0 | 2 | 0.00 | Welder, etc. |
| 2018-04-25 | Cadmium oxide fumes | 0 | 100 | 0.00 | Welder, etc. |
| 2018-04-25 | Chromium, insoluble | 0 | 1 | 0.00 | Welder, etc. |
| 2018-04-25 | Cobalt fumes | 0 | 100 | 0.00 | Welder, etc. |
| 2018-04-25 | Copper fumes | 0 | 100 | 0.00 | Welder, etc. |
| 2018-04-25 | Iron oxide fumes | 0.1 | 10 | 0.01 | Welder, etc. |
| 2018-04-25 | Lead fumes | 0 | 150 | 0.00 | Welder, etc. |
| 2018-04-25 | Magnesium oxide fumes | 0.01 | 10 | 0.00 | Welder, etc. |
| 2018-04-25 | Manganese fumes | 0.01 | 5 | 0.00 | Welder, etc. |
| 2018-04-25 | Molybdenum fumes | 0 | 10 | 0.00 | Welder, etc. |
| 2018-04-25 | Nickel fumes | 0 | 1 | 0.00 | Welder, etc. |
| 2018-04-25 | Vanadium fumes | 0 | 50 | 0.00 | Welder, etc. |
| 2018-04-25 | Zinc oxide fumes | 0 | 5 | 0.00 | Welder, etc. |
| 2014-05-06 | Quartz, respirable, >1% Qtz | 0.65 | 2.08 | 0.31 | Truck Driver |
| 2014-05-06 | Nuisance dust, respirable, <1% Qtz | 0.21 | 10 | 0.02 | Truck Driver |
| 2014-05-06 | Quartz, respirable, >1% Qtz | 1.56 | 1.76 | 0.89 | Screen/Scalper Operator |
| 2014-05-06 | Respirable dust, <.1mg | 0 | Crusher Oper/Worker | ||
| 2012-03-27 | Respirable dust, <.1mg | 0 | Front-end Loader Operator | ||
| 2012-03-27 | Quartz, respirable, >1% Qtz | 0.64 | 2.23 | 0.29 | Truck Driver |
| 2012-03-27 | Quartz, respirable, >1% Qtz | 0.47 | 2.18 | 0.22 | Crusher Oper/Worker |
| 2007-08-14 | Respirable dust, <.1mg | 0 | Drill Helper | ||
| 2007-08-14 | Quartz, respirable, >1% Qtz | 0.58 | 1.8 | 0.32 | Drill Operator, Rotary Air |
| 2007-08-14 | Quartz, respirable, >1% Qtz | 0.6 | 2.76 | 0.22 | Crusher Oper/Worker |
East Petersburg Quarry registró 0.00 casos de lesión reportables por cada 100 trabajadores a tiempo completo en 2025.
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Esta tasa son los casos de lesión reportables por cada 100 trabajadores a tiempo completo por año, calculada como 200,000 por los casos dividido entre las horas-empleado reportadas por el operador a la MSHA. Los casos son lesiones que la MSHA clasificó en grado 01 a 07; se excluyen los eventos de solo accidente que no lesionaron a nadie, y también las lesiones de contratistas, cuyas horas no corresponden a una sola mina. Las tasas comienzan en el año 2000, cuando inicia el reporte trimestral de empleo, y se omiten por debajo de 20,000 horas en un año.| Año | tasa de casos totales | días perdidos | mortales |
|---|---|---|---|
| 2025 * | 0.00 | 0.00 | 0.000 |
| 2024 * | 0.00 | 0.00 | 0.000 |
| 2023 * | 0.00 | 0.00 | 0.000 |
| 2022 * | 0.00 | 0.00 | 0.000 |
| 2021 * | 4.46 | 0.00 | 0.000 |
| 2020 * | 5.17 | 0.00 | 0.000 |
| 2019 * | 0.00 | 0.00 | 0.000 |
| 2018 * | 0.00 | 0.00 | 0.000 |
- Binkley & Ober Inc 1950 a 2007
- Pennsy Supply Inc 2007 al presente
| Año | Empleados |
|---|---|
| 2026 | 14 |
| 2025 | 15 |
| 2024 | 16 |
| 2023 | 15 |
| 2022 | 15 |
| 2021 | 15 |
| 2020 | 13 |
| 2019 | 15 |
| 2018 | 15 |
| 2017 | 14 |
| 2016 | 14 |
| 2015 | 15 |
| 2014 | 14 |
| 2013 | 14 |
| 2012 | 12 |
| 2011 | 15 |
| 2010 | 14 |
| 2009 | 16 |
| 2008 | 19 |
| 2007 | 35 |
| 2006 | 35 |
| 2005 | 32 |
| 2004 | 28 |
| 2003 | 29 |
| 2002 | 28 |
| 2001 | 28 |
| 2000 | 31 |
East Petersburg Quarry se ubica en Lancaster County, Pennsylvania, donde la categoría minera del Censo representa el 0.1% del empleo del condado.
ⓘ
Las cifras del condado provienen de la Encuesta sobre la Comunidad Estadounidense de la Oficina del Censo de EE. UU., estimaciones quinquenales agrupadas, por lo que la edición de 2023 abarca de 2019 a 2023. La categoría del Censo es 'minería, explotación de canteras y extracción de petróleo y gas', que es más amplia que la jurisdicción de la MSHA e incluye a trabajadores de petróleo y gas que ninguna mina emplea. Estas cifras describen el condado circundante, no esta mina, y no son un factor en ningún incidente específico.ⓘ
Citaciones por millón de horas-empleado reportadas. Las tasas comienzan en el año 2000, cuando inician los datos trimestrales de empleo de la MSHA; los incidentes anteriores se cuentan pero no pueden ajustarse por tasa. Los trimestres con menos de 100,000 horas reportadas se muestran en gris: muy pocas horas para una tasa estable.| Trimestre | Horas trabajadas | Citaciones | S&S | Por 1M hrs |
|---|---|---|---|---|
| 2026 Q2 | 11,429 | 6 | 1 | 525.0 |
| 2026 Q1 | 7,981 | 0 | 0 | 0.0 |
| 2025 Q4 | 11,577 | 4 | 0 | 345.5 |
| 2025 Q3 | 11,024 | 0 | 0 | 0.0 |
| 2025 Q2 | 10,892 | 4 | 0 | 367.2 |
| 2025 Q1 | 8,533 | 0 | 0 | 0.0 |
| 2024 Q4 | 9,474 | 4 | 0 | 422.2 |
| 2024 Q3 | 9,979 | 0 | 0 | 0.0 |
Mostrar 98 trimestres anteriores Ocultar trimestres anteriores
| Trimestre | Horas trabajadas | Citaciones | S&S | Por 1M hrs |
|---|---|---|---|---|
| 2024 Q2 | 11,313 | 4 | 1 | 353.6 |
| 2024 Q1 | 9,393 | 1 | 0 | 106.5 |
| 2023 Q4 | 11,813 | 0 | 0 | 0.0 |
| 2023 Q3 | 12,259 | 0 | 0 | 0.0 |
| 2023 Q2 | 11,966 | 2 | 0 | 167.1 |
| 2023 Q1 | 5,996 | 0 | 0 | 0.0 |
| 2022 Q4 | 11,352 | 1 | 0 | 88.1 |
| 2022 Q3 | 12,627 | 0 | 0 | 0.0 |
| 2022 Q2 | 11,018 | 0 | 0 | 0.0 |
| 2022 Q1 | 7,045 | 0 | 0 | 0.0 |
| 2021 Q4 | 12,141 | 0 | 0 | 0.0 |
| 2021 Q3 | 12,571 | 3 | 1 | 238.6 |
| 2021 Q2 | 12,088 | 0 | 0 | 0.0 |
| 2021 Q1 | 8,034 | 0 | 0 | 0.0 |
| 2020 Q4 | 9,355 | 0 | 0 | 0.0 |
| 2020 Q3 | 13,008 | 0 | 0 | 0.0 |
| 2020 Q2 | 9,525 | 0 | 0 | 0.0 |
| 2020 Q1 | 6,792 | 1 | 0 | 147.2 |
| 2019 Q4 | 12,589 | 0 | 0 | 0.0 |
| 2019 Q3 | 12,772 | 0 | 0 | 0.0 |
| 2019 Q2 | 5,197 | 1 | 1 | 192.4 |
| 2019 Q1 | 8,616 | 0 | 0 | 0.0 |
| 2018 Q4 | 8,647 | 2 | 0 | 231.3 |
| 2018 Q3 | 11,755 | 0 | 0 | 0.0 |
| 2018 Q2 | 11,063 | 1 | 0 | 90.4 |
| 2018 Q1 | 10,064 | 2 | 0 | 198.7 |
| 2017 Q4 | 10,718 | 0 | 0 | 0.0 |
| 2017 Q3 | 12,861 | 0 | 0 | 0.0 |
| 2017 Q2 | 12,831 | 3 | 1 | 233.8 |
| 2017 Q1 | 8,285 | 2 | 0 | 241.4 |
| 2016 Q4 | 7,594 | 0 | 0 | 0.0 |
| 2016 Q3 | 10,752 | 0 | 0 | 0.0 |
| 2016 Q2 | 12,141 | 0 | 0 | 0.0 |
| 2016 Q1 | 7,852 | 4 | 1 | 509.4 |
| 2015 Q4 | 8,572 | 0 | 0 | 0.0 |
| 2015 Q3 | 11,461 | 2 | 0 | 174.5 |
| 2015 Q2 | 10,662 | 0 | 0 | 0.0 |
| 2015 Q1 | 6,544 | 3 | 1 | 458.4 |
| 2014 Q4 | 9,815 | 0 | 0 | 0.0 |
| 2014 Q3 | 11,615 | 1 | 0 | 86.1 |
| 2014 Q2 | 11,760 | 1 | 0 | 85.0 |
| 2014 Q1 | 5,669 | 0 | 0 | 0.0 |
| 2013 Q4 | 8,396 | 0 | 0 | 0.0 |
| 2013 Q3 | 8,484 | 0 | 0 | 0.0 |
| 2013 Q2 | 8,901 | 2 | 0 | 224.7 |
| 2013 Q1 | 7,929 | 0 | 0 | 0.0 |
| 2012 Q4 | 6,997 | 0 | 0 | 0.0 |
| 2012 Q3 | 7,591 | 0 | 0 | 0.0 |
| 2012 Q2 | 9,232 | 0 | 0 | 0.0 |
| 2012 Q1 | 5,479 | 4 | 1 | 730.1 |
| 2011 Q4 | 8,884 | 4 | 0 | 450.2 |
| 2011 Q3 | 9,779 | 0 | 0 | 0.0 |
| 2011 Q2 | 9,747 | 0 | 0 | 0.0 |
| 2011 Q1 | 5,616 | 0 | 0 | 0.0 |
| 2010 Q4 | 8,968 | 0 | 0 | 0.0 |
| 2010 Q3 | 9,825 | 0 | 0 | 0.0 |
| 2010 Q2 | 8,972 | 0 | 0 | 0.0 |
| 2010 Q1 | 6,275 | 2 | 1 | 318.7 |
| 2009 Q4 | 6,410 | 9 | 4 | 1404.1 |
| 2009 Q3 | 8,211 | 10 | 3 | 1217.9 |
| 2009 Q2 | 8,188 | 0 | 0 | 0.0 |
| 2009 Q1 | 5,013 | 0 | 0 | 0.0 |
| 2008 Q4 | 6,915 | 0 | 0 | 0.0 |
| 2008 Q3 | 9,485 | 0 | 0 | 0.0 |
| 2008 Q2 | 10,395 | 0 | 0 | 0.0 |
| 2008 Q1 | 9,134 | 11 | 6 | 1204.3 |
| 2007 Q4 | 16,323 | 0 | 0 | 0.0 |
| 2007 Q3 | 17,379 | 3 | 1 | 172.6 |
| 2007 Q2 | 21,322 | 0 | 0 | 0.0 |
| 2007 Q1 | 16,657 | 0 | 0 | 0.0 |
| 2006 Q4 | 17,794 | 4 | 1 | 224.8 |
| 2006 Q3 | 17,901 | 3 | 1 | 167.6 |
| 2006 Q2 | 16,331 | 0 | 0 | 0.0 |
| 2006 Q1 | 16,227 | 13 | 1 | 801.1 |
| 2005 Q4 | 18,425 | 0 | 0 | 0.0 |
| 2005 Q3 | 20,623 | 0 | 0 | 0.0 |
| 2005 Q2 | 18,105 | 0 | 0 | 0.0 |
| 2005 Q1 | 13,474 | 5 | 0 | 371.1 |
| 2004 Q4 | 18,113 | 0 | 0 | 0.0 |
| 2004 Q3 | 14,084 | 0 | 0 | 0.0 |
| 2004 Q2 | 14,107 | 0 | 0 | 0.0 |
| 2004 Q1 | 11,280 | 0 | 0 | 0.0 |
| 2003 Q4 | 15,711 | 0 | 0 | 0.0 |
| 2003 Q3 | 15,577 | 0 | 0 | 0.0 |
| 2003 Q2 | 14,458 | 0 | 0 | 0.0 |
| 2003 Q1 | 10,742 | 3 | 2 | 279.3 |
| 2002 Q4 | 14,687 | 0 | 0 | 0.0 |
| 2002 Q3 | 13,976 | 5 | 2 | 357.8 |
| 2002 Q2 | 15,914 | 0 | 0 | 0.0 |
| 2002 Q1 | 13,271 | 5 | 2 | 376.8 |
| 2001 Q4 | 18,177 | 0 | 0 | 0.0 |
| 2001 Q3 | 17,260 | 9 | 2 | 521.4 |
| 2001 Q2 | 12,981 | 0 | 0 | 0.0 |
| 2001 Q1 | 13,415 | 2 | 0 | 149.1 |
| 2000 Q4 | 18,084 | 0 | 0 | 0.0 |
| 2000 Q3 | 17,897 | 7 | 0 | 391.1 |
| 2000 Q2 | 16,490 | 0 | 0 | 0.0 |
| 2000 Q1 | 14,007 | 0 | 0 | 0.0 |
Incidentes reportables
26 en archivo2021 · 1 incidente
2020 · 1 incidente
Employee was helping to put counterweight on screen, weight slipped and lacerated palm of hand.
2018 · 1 incidente
Finger caught between drill bit & drivers sub while changing bit. Required stitches & may have slight fracture. Treated at local hospital ER & released. Middle index finger required 7 stitches.
2014 · 2 incidentes
Driller was in process of cutting air hose to splice, grinding wheel on cutter flew apart and sliced into chest of operator. Cut deep but apparently no penetration.
Employee was cutting hinge on engine excavator cover and fell off
2011 · 2 incidentes
EE was using a wrench to loosening a bolt on a screen guard. He pulled a shoulder muscle while pulling on the wrench.
Miner was dismounting from cab of drill when the grab bar broke loose and he fell backward approximately 4 ft onto his bottom, back and head. His head struck the ground and causing a laceration and bruise.
2010 · 1 incidente
Employee was determined to have a recordable hearing loss discovered during a routine audiometric exam.
2008 · 1 incidente
Employee was trying to open a clogged chute and hit his right index finger on a piece of sharp metal, cutting finger.
2006 · 1 incidente
Worker was spraying belt dressing on #67 belt. During the process of this operation the worker dropped the spray can. As a reflex he reached for the can as it was falling and pinched his right pinky finger between the belt and roller causing an injury to the pinky finger that required a skin graft to repair.
2004 · 1 incidente
Employee was exiting a company pick-up truck when he twisted wrong and felt pain in his back. He strained his lower back.
2002 · 1 incidente
EMPLOYEE WAS SPRAYING CONVEYER BELT WHEN SPILAGEON CATWALK SHIFTED UNDER HIS FOOT CAUSING HIM TO GET TOO CLOSE TO HEADWHEEL, LEFT INDEX FINGER GOT CAUGHT BETWEEN HEADWHEEL AND CONVEYER BELT, E E PULLED HIS FINGER.
2001 · 3 incidentes
CHECKING ANTIFREEZE IN THE ENGINE OF A FRONT ENDLOADER WHILE ENGINE WAS HOT, IT BOILED OVER AND BURNED LT. FOREARM (2ND DEGREE BURN).
WHILE DOING MAINTENANCE IN FEEDER EMPLOYEE CLIMBED DOWN THE METAL FRAME OF THE FEEDER AND TORE ROTATOR CUFF OF LEFT SHOULDER.
OPERATING WATER TRUCK; COMPLAINED OF NUMBNESS INRIGHT WRIST & HAND GETTING PROGRESSIVELY WORSE.
2000 · 2 incidentes
EMP PERFORMING REGULAR MAINTENANCE TO PLANT. DROPPED WRENCH INTO BIN FULL OF COARSE AGGREGATE. TWISTED KNEE ON MATERIAL AFTER GOING TO RETRIEVE.
EMP WAS CLIMBING ONTO TEMP CATWALK, LOST BALANCE AND FELL ONTO KNEE.
1998 · 1 incidente
EE WAS EXITING VEHICLE WHEN HIS FOOT SLIPPED FROM STEP ON TRUCK CAUSING HIM TO STRAIN BACK MUSCLES.
1995 · 3 incidentes
MECHANIC HAD DISCONNECTED AND LOWERED TRANSMISSION TO THE GROUND. THE MECHANIC ARBITRARILY FABRICATED A LIFTING EYE TO BE USED TO LAY THE TRANSMISSION ON ITS SIDE. MECHANIC WAS PREPARING TO LA Y THE TRANSMISSION ON ITS SIDE WHEN IT FELL OVER, PULLING AND TEARING THE MECHANIC S FABRICATED HOOK. THE TRANSMISSION THEN RESTED ON THE MECHANIC UPPER RIGHT LEG AND GROIN AREA.
EE WAS REPLACING MOTOR IN CRUSHER HOUSING. FELT A PULL IN BACK.
WORKING ON PUMP, IT FELL, TRIED TO GRAB PUMP, TWISITED LEFT LEG.
1990 · 2 incidentes
HE WAS HELPING TO SET UP THE PLANT. WHILE LIFTING STEEL BRACES HE HURT HIS BACK.
EMPLOYEE WAS USING ELECTRIC DRILL TO DRILL HOLE IN STEEL WHEN THE DRILL BIT CAUGHT THROWING THE DRILL OFF BALANCE CATCHING THE EMPLOYEE'S HAND AGAINST ANOTHER PIECE OF STEEL.
1989 · 1 incidente
SLIPPED ON CATWALK, FELL FORWARD ON HANDS, BROKE FALL, ROLLED OVER. FELT STRAIN IN BACK BUT CONTINUED WORKING.
1986 · 1 incidente
EMPLOYEE WAS RE1LACING WEAR PLATES INSIDE OF CHUTE HE WAS STANDING IN CHUTE AND HAD REMOVED A SECTION OF NEW PLATE HE WAS WORKING ON SO HE COULD CUT A BOLT HOLE LARGER WHEN THE PLATE SLIPPED B ACK INTO THE CH6TE AND HIT HIM ON THE RT FOOT
1985 · 1 incidente
EMPLOYEE HAS STATED THAT HE WAS IN THE PROCESS OF PUTTING NEW CABLE ON A CRANE WHICH IS USED AS A BALL MACHINE IN OUR QUARRY.THE BOOM WAS CLOSE TO THE GROUND AND THE EMPLOYEE WAS WALKING ALONG THE SIDE OF THE BOOM WHEN HE OVERTREAD HIS ANKLE ON A PIECE OF ROCK LYING ON THE GROUND.