Hazard Meaning and Definition

JOB HAZARD ANALYSIS Subsurface Delethalization of Infrastructure

The responsible person is to ensure the control measures below are in place before the activity is carried out

  TASK: Sub-Surface Delethalisation of Infrastructure    Date:28 December 2006
NoACTIVITYHAZARDRISKCONTROL MEASURES TO MINIMISE / ELIMINATE RISKRESPONSIBLE PERSON
1Marking out area to be laidUse of hand tools  Cuts, abrasions, broken bones, eye Injuries  Supervisor to inspect hand tools prior to commencement of works to ensure tools are in good condition. Site minimum PPE to be worn at all times 
  Marker paint  COSHH related injuries  Paint to be COSHH assessed prior to use and COSHH assessment finding to be implemented prior to use of any such paint. (Toolbox talk attached) 
  Manual Handling  Work related upper limb disorders. Musculoskeletal injuries. Cuts, abrasions, eye injuries  Maximum use of equipment to reduce need for MHO’s MHO Training prior to any work being carried out, this training is to be documented Wearing of gloves Wearing of safety shoes Wearing of safety glasses 
  DustPoor visibility, respiratory injuries Dust explosionAn effective Dust suppression programme will be in place prior to the works commencing, and thereafter as necessary to suppress the dust sufficiently. In the event that the dust suppression programme fails operatives will be issued suitable RPE. In the event the dust causes restricted vision, operatives will be removed from the excavation. 
  Extreme heatDehydration, heat exhaustion. Heat stroke  Ready supply of cold water and Oral rehydration products ie Salt & Dextrose tablets. No work to be conducted under the sun between 12:00 & 15:00 (July & August only). In the event that natural airflow is restricted, industrial air movers will be employed. No worker shall work within the excavation for longer than 40 minutes without a ten minute break in a shaded area which will be provided for this purpose.   
  Vehicle overturningEntrapment, Crush injuriesRoll bars will be fitted to vehicles where there is no “designed in” Cab protection. Seat belts will be worn. Areas of extreme un-evenness will be graded as and when necessary. 
  NoiseDeafness, CEMP violationNoise monitoring will be conducted to measure noise as required by the CEMP. Proactive measures will be taken to reduce noise SFAIRP. Hearing protection will be available on request to all exposed staff should the TWA Noise level reach 85dB. Hearing protection will be mandatory if the TWA background noise reaches 90dB. 
  Unplanned vehicle movementsPlant on plant incidents. Pedestrian injuriesA strict Plant / Vehicle and operative / pedestrian separation regime will be enforced.
Wearing of high visibility vests.
 
  Venomous insects.Potentially lethal bitesAreas to be excavated which may be covered with vegetation will be beaten ala “Turkey Shoot” prior to any works being undertaken. Operatives will be briefed on what constitutes a potentially lethal insect, this will be documented 
  Venomous SnakesPotentially lethal bitesAreas to be excavated will be beaten ala “Turkey Shoot” as applicable prior to any works being undertaken. Operatives will be briefed on what constitutes a potentially lethal insect. 
2Loading of Sub-Base, Suitable Fill, and Surface Protection MaterialDustPoor visibility, respiratory  Injuries Dust explosionAn effective Dust suppression programme will be in place prior to the works commencing, and thereafter as necessary to suppress the dust sufficiently. In the event that the dust suppression programme fails operatives will be issued suitable RPE. In the event the dust causes restricted vision, operatives will be removed from the excavation. 
  Shovel of wheel loader, load dropping inadvertentlyInjuries to persons in areaNo person will work within the traversing arc of an excavator or wheel loader 
  Material falling from equipment shovelInjuries to persons in areaNo person will work within the traversing arc of an excavator or wheel loader 
  Equipment falling into excavationInjuries to operatives in the excavationStop blocks or other such means will be erected 2 metres from the excavation edge. No vehicles will be allowed closer than 2 metres from the excavation edge. Equipment and stores will not be stockpiled any closer than two metres from the edge of the excavation edge. 
  Extreme heatDehydration, heat exhaustion. Heat strokeReady supply of cold water and Oral rehydration products ie Salt & Dextrose tablets. No work to be conducted under the sun between 12:00 & 15:00 (July & August only). In the event that natural airflow is restricted, industrial air movers will be employed. No worker shall work within the excavation for longer than 40 minutes without a ten minute break in a shaded area which will be provided for this purpose. 
  Contaminated land / soilCOSHH Related injuriesStaff will be briefed on the potential contaminants their nature, the hazards and how to recognise them.
A procedure will be implemented that causes operatives who suspect by sight or smell any such contaminants to be present to report any such suspicion to the competent person present. The competent person on being informed of any contaminate will assume the substance to be hazardous and reassign the workers to a place of safety until the suspected substances have been examined by a competent person specialising in Toxic or harmful substances.
 
  Unplanned vehicle movementsPlant on plant incidents. Pedestrian injuriesA strict Plant / Vehicle and operative / pedestrian separation regime will be enforced.
Wearing of high visibility vests.
 
3Compaction of Sub-Base, Suitable Fill and Surface Protection MaterialOperatives caught in moving parts of machinesPeople / Plant accidentsCarefully controlled people / vehicle-plant separation regime to be in place. All vehicles etc to be fitted with reversing alarms. Those not necessary to the operation to be excluded from the work area. 
4Concrete pouringContact with concreteEntrapment, suffocation, Chemical burnsConstant supervision. During pouring of concrete mixture, workers to be tethered to a rescue line, while wearing a full body harness. Rescue line to be adequately manned to enable an instantaneous removal from the excavation. Butyl rubber boots and gloves to be worn. COSHH Training to be delivered prior to any concrete pour 
5Finishing of concreteUse of electrical hand toolsBurst discs. Disc fragment impact injuriesDiscs only to be fitted by competent staff, disc speeds not to be exceeded. Fill site PPE to be worn. In addition to suitable RPE. PEE to be fitted with a dead-mans handle / switch. 
6Laying of Polythene sheetManual HandlingWork related upper limb disorders. Musculoskeletal injuries. Cuts etcMaximum use of equipment to reduce need for MHO’s MHO Training prior to any work being carried out, this training is to be documented Wearing of gloves Wearing of safety shoes 
This JHA was prepared by:- This JHA was authorised by:-
 
Gamal Elsalawi ESH Manager OAJ-JV Date:-28 December 2006Ravindra Raju Technical Manager OAJ-JV Date:-28 December 2006
  TASK:__________________________________________________________________    Date: ___________________
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All Employees are to sign below in recognition and understanding of this JHA content

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