| 1. Vehicle Procurement and Design Selection |
- • Purchase of water truck (water cart / water tanker) that is not fit-for-purpose for site conditions, road grades, or load requirements
- • Inadequate engineering verification of tank capacity, baffling and load distribution leading to instability or rollover risk
- • Lack of compliance with Australian Design Rules (ADRs), Heavy Vehicle National Law (HVNL) and relevant Australian Standards for road-going and off-road plant
- • Inadequate consideration of visibility (blind spots), access, egress and operator ergonomics in procurement specifications
- • Failure to specify suitable braking systems, retarder controls and traction systems for steep, unsealed or wet haul roads
- • Omission of engineering controls for dust suppression systems (spray bar design, nozzle placement and control interfaces) creating uncontrolled spray patterns
- • Vehicle modifications (e.g. retrofit of tanks, spray systems, remote controls) without engineering certification or change management
- • Insufficient capacity or rating of ROPS/FOPS (where applicable) or cabin structure for operating environment
- • Lack of standardisation across fleet leading to inconsistent controls, labelling and training requirements
- • Failure to consider maintenance access and isolation requirements during design and purchase phase
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| 2. Governance, WHS Management System and Legal Compliance |
- • Lack of clear organisational accountability for water truck fleet safety and compliance under the WHS Act 2011 and WHS Regulations
- • Inadequate integration of water truck operations into the overall WHS management system and risk management framework
- • Failure to identify and monitor legal and other requirements relevant to heavy vehicles, mobile plant, fatigue and roadworthiness
- • Insufficient consultation with workers, health and safety representatives and contractors involved with water carts and tankers
- • Poor documentation and control of procedures leading to inconsistent practices between shifts, sites and contractors
- • Inadequate processes for monitoring, reviewing and continuously improving the safety management system as it relates to water trucks
- • Failure to incorporate learning from incidents, near misses and industry alerts into system changes and training
- • Lack of integration between WHS systems and fleet / asset management systems creating gaps in control implementation
- • Inconsistent application of risk assessment processes when introducing new water truck types, routes or tasks
- • Insufficient oversight of contractor-supplied water trucks, including verification of their safety management systems
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| 3. Driver Competency, Licensing and Training Systems |
- • Drivers operating water trucks without the appropriate driver’s licence class or plant competency for vehicle size and configuration
- • Inconsistent or inadequate training in water truck-specific hazards such as surge, rollover risk, spray use, braking behaviour and off-road driving
- • No formal verification of competency (VOC) processes or reliance on informal on-the-job learning
- • Insufficient training in site rules, traffic management plans, communication protocols and emergency procedures
- • Lack of training in recognition and reporting of mechanical defects, fatigue symptoms and environmental risks (e.g. soft edges, sinkholes)
- • Failure to provide refresher training, particularly when incidents occur, conditions change or new equipment is introduced
- • Inadequate literacy, language or numeracy support leading to misunderstanding of procedures, signage and gauges
- • No documented induction process for new or agency drivers using water carts / tankers
- • Over-reliance on a single experienced operator leading to key person risk and limited cross-skilling
- • Insufficient supervisor capability to assess and coach driver behaviours and adherence to safe systems of work
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| 4. Fatigue Management and Scheduling |
- • Extended shifts and irregular rosters for water truck drivers leading to fatigue-related impairment and reduced vigilance
- • Inadequate fatigue management policy or lack of alignment with Heavy Vehicle National Law fatigue requirements (where applicable)
- • Pressure to meet production or dust suppression targets resulting in reduced rest breaks or unsafe driving behaviours
- • Poorly designed rosters that do not account for circadian rhythms, travel time to and from site, and cumulative fatigue over successive days
- • Drivers working multiple jobs or being called in at short notice without sufficient rest periods
- • Insufficient education for drivers and supervisors about fatigue risks, signs and reporting processes
- • Lack of monitoring tools for fatigue indicators (e.g. work hours, near misses, inattention events) across the water truck fleet
- • Inadequate control of overtime and unplanned work for water cart operations during peak demand or emergency events
- • No clear process to allow drivers to stop work if fatigued without fear of reprisal
- • Limited integration of fatigue data into incident investigations and risk reviews
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| 5. Maintenance, Inspection and Defect Management Systems |
- • Inadequate preventative maintenance scheduling for water trucks, tanks, pumps and spray systems leading to mechanical failures
- • Lack of systematic pre-start and post-use inspection processes or failure to act on identified defects
- • Use of non-genuine or unsuitable parts that compromise braking, suspension, steering or structural integrity
- • Deferred maintenance due to production pressures, lack of parts or budget constraints resulting in unsafe vehicles remaining in service
- • Poor communication between operators, maintenance personnel and supervisors about known or suspected defects
- • Incomplete service records and maintenance histories, limiting ability to identify recurring issues or systemic problems
- • Insufficient testing and inspection of critical systems such as brakes, tyres, steering, lights, ROPS/FOPS, load restraints and emergency stops
- • Uncontrolled modifications or repairs performed by non-competent persons or without reference to OEM specifications
- • Failure to isolate and tag out unsafe water trucks, allowing them to be used while defective
- • Limited verification that contractor-owned water carts / water tankers are maintained to equivalent standards
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| 6. Traffic Management, Routing and Site Interface |
- • Poorly designed traffic management plans leading to interactions between water trucks and light vehicles, pedestrians or other mobile plant
- • Inadequate separation of haul roads, access tracks and pedestrian walkways within work sites
- • Uncontrolled interface between on-road and off-road environments, including public roads, site access points and laydown areas
- • Lack of clear signage, line marking and speed control measures on routes used by water carts and tankers
- • Water spray on haul roads or public roads creating slippery surfaces, loss of traction and increased stopping distances
- • Unmanaged use of water trucks on steep or unstable haul roads increasing rollover and brake failure risks
- • Poor visibility due to dust, topography, lighting or weather increasing collision risks
- • Insufficient communication protocols (e.g. UHF channels, call points) among road users, particularly on single-lane or one-way routes
- • No formal route risk assessment considering gradients, edge protection, turning circles, overtaking and escape routes
- • Failure to adjust traffic controls during changed conditions, such as wet weather, construction work, blasting or road maintenance
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| 7. Load Management, Tank Operation and Stability Controls |
- • Overfilling or uneven filling of water tanks leading to excessive surge, high centre of gravity and increased rollover risk
- • Lack of controls on fill volumes relative to route gradients, speed limits and ground conditions
- • Inadequate baffling or internal tank design control increasing dynamic load movement during braking and cornering
- • Uncontrolled discharge of water (e.g. incorrect spray settings, valve failures) causing sudden weight shift or road surface hazards
- • Failure to verify tank, mounting and chassis ratings when changing tank size or vehicle type
- • Insufficient procedures for operating with partial loads where load dynamics can be more unstable
- • No documented restrictions on operating water trucks on certain gradients, cambers or road surfaces when fully loaded
- • Lack of driver understanding of how surge and partial loads affect braking distance, cornering and rollover thresholds
- • Uncontrolled filling at non-designated fill points with inadequate ground support or drainage
- • Inadequate monitoring of tank integrity leading to leaks, corrosion or structural failure
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| 8. Environmental and Dust Suppression Management |
- • Uncontrolled use of water causing erosion, run-off, contamination of waterways and non-compliance with environmental approvals
- • Over-application of water on roads causing mud build-up, loss of traction and increased risk of vehicle incidents
- • Inadequate coordination between environmental requirements (dust control) and safe driving practices for water trucks
- • Use of poor-quality or contaminated water leading to corrosion of plant or health concerns for workers during spray application
- • Inconsistent application of dust suppression resulting in poor visibility or dust exposure for workers and the public
- • Failure to monitor water use volumes and sources, potentially breaching licence conditions or local authority requirements
- • Lack of procedures for managing water truck operations during heavy rainfall or flood conditions
- • Insufficient planning for environmental constraints such as protected waterways, cultural heritage sites or adjacent residents
- • No integration of dust monitoring data into scheduling and route planning for water carts
- • Limited communication between environmental team and water truck supervisors regarding changing environmental risks and compliance obligations
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| 9. Emergency Preparedness and Incident Response |
- • Lack of clear procedures for responding to water truck rollovers, collisions, mechanical failures or medical emergencies involving drivers
- • Inadequate communication systems for drivers to raise alarms or request assistance in remote or low-coverage areas
- • Insufficient emergency equipment on water trucks (e.g. fire extinguishers, first aid kits, spill kits) or poor maintenance of this equipment
- • No coordinated response plan for incidents involving water spills, fuel leaks or environmental damage from water truck operations
- • Limited training and exercises for drivers and supervisors on site emergency response arrangements and roles
- • Failure to consider water truck-specific scenarios in site emergency plans (e.g. truck submerged in water storage, trapped driver in rollover, blocked haul road)
- • Unclear arrangements for interaction with external emergency services, including access routes and water supply points
- • Inadequate post-incident support for drivers, including debriefing, counselling and re-training
- • Poor incident reporting culture among drivers leading to under-reporting of near misses and minor events
- • Lack of systematic post-incident investigation and sharing of lessons learned across sites and fleets
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| 10. Contractor and Third-Party Water Truck Management |
- • Use of contractor-supplied water carts or tankers that do not meet the organisation’s safety standards or legislative requirements
- • Lack of visibility over contractor driver competency, training, fatigue management and maintenance systems
- • Inconsistent communication of site rules, traffic management plans and emergency procedures to contractors
- • Commercial pressures leading contractors to prioritise productivity over safety and compliance
- • Inadequate pre-qualification and ongoing monitoring of contractor WHS performance for water truck operations
- • Poor interface management where multiple contractors and principal contractor water trucks share the same roads and work areas
- • Unclear allocation of responsibilities between PCBU(s) regarding management of WHS risks associated with contractor water trucks under the WHS Act 2011
- • Insufficient induction and supervision of short-term or casual contractor drivers
- • Inconsistent incident reporting and investigation processes across contractor organisations
- • Inability to access or verify contractor records (e.g. licences, inspections, training, fatigue data) when required
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| 11. Information, Communication and Reporting Systems |
- • Critical safety information about water truck risks, route changes or incidents not reaching drivers and supervisors in a timely and understandable way
- • Inconsistent use of radios, phones or digital platforms leading to missed instructions or misunderstandings
- • Complex or bureaucratic reporting systems discouraging drivers from raising hazards, near misses or improvement ideas
- • Failure to maintain up-to-date documentation (procedures, maps, emergency contacts) accessible to drivers in cab or at depots
- • Poor handover communication between shifts or between different crews and contractors
- • Insufficient feedback loops where drivers are not informed about the outcomes of issues they have reported
- • Over-reliance on verbal instructions without written confirmation for critical changes to routes, loads or operational limits
- • Language and literacy barriers preventing some drivers from fully understanding written communications and procedures
- • No systematic analysis of water truck-related data (incidents, defects, fuel use, near misses) to identify trends and systemic risks
- • Inadequate use of technology (e.g. GPS, telematics, digital checklists) that could support safer and more efficient communication and monitoring
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