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Geotechnical Investigation Risk Assessment

Geotechnical Investigation Risk Assessment

  • • 100% Compliant with Australian WHS Acts & Regulations
  • • Fully Editable MS Word & PDF Formats Included
  • • Pre-filled Content – Ready to Deploy Immediately
  • • Customisable – Easily Add Your Logo & Site Details
  • • Includes 2 Years of Free Compliance Updates

Geotechnical Investigation Risk Assessment

Product Overview

Identify and control organisational risks associated with Geotechnical Investigation activities through a structured, management-level WHS Risk Management framework that focuses on planning, governance, and systems. This Risk Assessment supports compliance with the Work Health and Safety Act and Regulations while strengthening Due Diligence and reducing operational liability exposure for your business.

Risk Categories & Hazards Covered

This document assesses risks and outlines management controls for:

  • WHS Governance, Legal Compliance and PCBU Duties: Assessment of leadership responsibilities, due diligence obligations, consultation duties, and the integration of WHS into corporate governance for geotechnical operations.
  • Project Planning, Design and Risk Management Processes: Management of geotechnical investigation planning, design reviews, risk registers, and pre-start risk assessments to ensure hazards are considered before work commences.
  • Contractor, Supplier and Laboratory Management: Protocols for prequalification, selection, engagement, and performance monitoring of drilling contractors, laboratories, and specialist providers, including verification of insurances, licences and WHS systems.
  • Competency, Training and Supervision: Assessment of competency requirements for geotechnical engineers, drillers, offsiders and field technicians, including training matrices, verification of competency and supervision arrangements.
  • Site Information, Survey and Ground Condition Data Management: Management of site access information, utility and services data, survey records, borehole logs and subsurface information, including version control and distribution to all relevant parties.
  • Plant, Equipment and Technology Management: Controls for the selection, inspection, maintenance and operation of drilling rigs, support vehicles, lifting equipment, sampling tools and monitoring technology used in geotechnical investigations.
  • Hazard Identification, Risk Assessment and Change Management: Systems for ongoing hazard identification, task-based risk assessment, permit requirements and formal management of change when scope, methods or ground conditions vary.
  • Environmental and Groundwater Interaction Risk Management: Assessment of environmental impacts, groundwater contamination risks, spoil management, erosion and sediment control, and compliance with environmental approvals and conditions.
  • Communication, Consultation and Information Sharing: Protocols for toolbox talks, pre-start briefings, client liaison, stakeholder communication, and the distribution of safety-critical information, drawings and ground models.
  • Emergency Preparedness, Incident Management and Business Continuity: Planning for medical emergencies, rig or ground instability events, entrapment, environmental incidents and remote/isolated work, including escalation, notification and recovery arrangements.
  • Monitoring, Review, Audit and Continuous Improvement: Frameworks for inspections, audits, performance indicators, lessons learned from incidents and non-conformances, and periodic review of geotechnical investigation procedures and controls.

Who is this for?

This Risk Assessment is designed for Business Owners, Principal Contractors, Geotechnical Managers and Safety Professionals responsible for planning, procuring and overseeing geotechnical investigation projects and services.

Hazards & Risks Covered

Hazard Risk Description
1. WHS Governance, Legal Compliance and PCBU Duties
  • • Inadequate understanding of WHS Act 2011 and WHS Regulations as they apply to geotechnical investigation activities
  • • Lack of clear allocation of PCBU, officer and worker duties across multiple parties (client, principal contractor, specialist geotechnical consultant, drilling/seismic subcontractors, laboratories)
  • • Absence of documented WHS management system (WHSMS) tailored to geotechnical and geophysical work (e.g. seismic survey operations, subsidence monitoring, hazardous ground substrate identification)
  • • Poor integration of geotechnical WHS requirements into overall project WHS plans and contracts
  • • Failure to monitor and review WHS performance of geotechnical activities at governance level
  • • Inadequate due diligence by officers in ensuring resources, systems and verification processes are in place
  • • Insufficient consultation, cooperation and coordination arrangements between PCBUs on shared or overlapping duties (e.g. during site assessment and soil identification on operational sites)
  • • Lack of formal process to incorporate learnings from incidents, near misses and audit findings into management system changes
2. Project Planning, Design and Risk Management Processes
  • • Inadequate early-stage risk identification for geotechnical investigation activities, leading to uncontrolled exposure to ground instability, subsidence or hazardous ground substrates
  • • Lack of integration between engineering/geological design assumptions and WHS risk assessments for formation tests, soil testing, geological surveys and seismic survey operations
  • • Insufficient use of existing geotechnical, subsidence, groundwater and contamination data to inform WHS planning and control selection
  • • Failure to consider access, egress and exclusion zone requirements for drilling, material sampling and ground water flow testing in planning documentation
  • • No formal change management process when investigation scope changes (e.g. deeper boreholes, additional features extraction tasks, different soil testing techniques)
  • • Poor planning for concurrent operations with other contractors, creating interface risks (mobile plant interaction, noise, vibration, dust, hazardous atmosphere from subsurface conditions)
  • • Inadequate planning for remote or isolated work, including communication and emergency response during geological surveys and subsidence monitoring
3. Contractor, Supplier and Laboratory Management
  • • Engagement of geotechnical, drilling, seismic and laboratory contractors without adequate WHS pre-qualification or capability assessment
  • • Inconsistent WHS standards, procedures and communication across multiple contractors performing formation tests, material sampling, soil testing on site and in laboratory environments
  • • Lack of clarity over responsibilities for plant inspection, maintenance, calibration and safe operation of specialist equipment used in geophysical testing, seismic survey operations and ground water flow testing
  • • Poor management of subcontractor interfaces resulting in overlapping or conflicting controls and unsafe site conditions
  • • Inadequate verification that laboratories handling geotechnical and hazardous substrate samples have appropriate WHS and hazardous materials management systems
  • • Failure to manage contractor performance through systematic monitoring, review and corrective actions
4. Competency, Training and Supervision
  • • Insufficient competency of personnel in geotechnical investigation methods (e.g. seismic survey operations, formation testing, groundwater monitoring) and associated WHS risk management
  • • Lack of training in site-specific hazards such as ground instability, subsidence potential, hazardous ground substrates and confined spaces around boreholes or pits
  • • Poor understanding of instrument limitations and data quality requirements leading to unsafe assumptions about ground conditions and groundwater flow
  • • Inadequate supervision for inexperienced staff during complex tasks such as hazardous ground substrate identification, sub-surface feature extraction and seismic data acquisition
  • • No structured refresher training or verification of competency, leading to skill fade and inconsistent practices
  • • Limited training in WHS legal duties, consultation requirements and incident reporting processes relevant to geotechnical work
5. Site Information, Survey and Ground Condition Data Management
  • • Inaccurate, incomplete or outdated site information leading to mischaracterisation of ground conditions, subsidence risk and groundwater behaviour
  • • Fragmented data management between site assessment, soil identification, geological surveys, seismic surveys, and groundwater flow testing
  • • Failure to record and communicate known or suspected hazardous ground substrates (e.g. acid sulfate soils, contaminated fill, reactive clays, voided ground)
  • • Poor integration of topographical, geological, hydrological and utilities data leading to unsafe selection of investigation locations and methods
  • • Lack of version control or traceability for changes to geological models, ground condition interpretations and subsidence predictions
  • • Insufficient data capture and retention from formation tests, soil testing on site and in laboratories, affecting future risk assessments and design decisions
6. Plant, Equipment and Technology Management
  • • Use of unsuitable, poorly maintained or non-compliant plant and equipment for geotechnical investigation and seismic survey operations
  • • Inadequate systems for inspection, testing and calibration of instruments used in formation testing, groundwater flow measurement, subsidence monitoring and soil testing
  • • Failure to manage plant interactions in constrained or complex environments, especially with other site mobile plant
  • • Improper selection or configuration of seismic sources, drilling equipment or sampling tools resulting in excessive vibration, noise or ground disturbance
  • • Insufficient cyber and data integrity controls for automated monitoring systems (e.g. remote subsidence sensors, groundwater loggers, geophysical data acquisition systems)
  • • Lack of documented procedures for safe operation and lock-out of geotechnical plant and monitoring equipment
7. Hazard Identification, Risk Assessment and Change Management
  • • Inconsistent or superficial hazard identification for complex ground and subsurface conditions across different projects and teams
  • • Reliance on generic risk assessments that do not consider project-specific geotechnical factors such as subsidence potential, groundwater pressures and hazardous substrates
  • • Failure to recognise and act on emerging risks during investigations when actual conditions differ from those anticipated (e.g. unexpected voids, artesian pressures, contaminated materials)
  • • Lack of structured change management when investigation methods, sequences or locations are altered during delivery
  • • Inadequate involvement of competent geotechnical and WHS professionals in risk assessment processes
  • • Poor documentation and communication of risk control decisions and rationales to operational personnel
8. Environmental and Groundwater Interaction Risk Management
  • • Uncontrolled changes to groundwater flow or quality during ground water flow testing and drilling, resulting in environmental harm and secondary WHS risks
  • • Inadequate control of contaminated or hazardous groundwater and soil, including during sampling and pumping activities
  • • Poorly planned discharge or disposal of test water, drilling fluids and cuttings leading to erosion, contamination or unsafe ground conditions
  • • Failure to consider interactions between geotechnical investigations and existing contaminated land management systems
  • • Insufficient monitoring of groundwater levels and pressures affecting ground stability, subsidence and infrastructure performance
  • • Lack of integration between environmental approvals/conditions and WHS controls for geotechnical investigation works
9. Communication, Consultation and Information Sharing
  • • Inadequate communication of geotechnical hazards, controls and changes between project stakeholders, including other PCBUs sharing the site
  • • Limited worker consultation in planning and reviewing geotechnical investigation methods and controls, leading to unreported issues and low ownership
  • • Failure to communicate key findings from site assessments, soil identification, seismic surveys and subsidence monitoring to those who need to act on them
  • • Language, literacy or cultural barriers affecting understanding of WHS expectations and ground-related risks
  • • Poor escalation pathways for emerging risks identified during formation tests, groundwater testing or hazardous substrate identification
10. Emergency Preparedness, Incident Management and Business Continuity
  • • Lack of emergency plans specific to geotechnical incidents such as ground collapse, sudden subsidence, inundation from groundwater, exposure to hazardous substrates or gas release from strata
  • • Insufficient coordination of emergency arrangements between PCBUs conducting concurrent geotechnical and construction activities
  • • Delayed or ineffective response due to unclear roles, inadequate equipment or poor communication during a geotechnical emergency
  • • Under-reporting or poor investigation of geotechnical near misses leading to missed opportunities to address systemic issues
  • • Inadequate business continuity planning for critical monitoring programs (e.g. subsidence monitoring, groundwater tracking) in the event of system failures or site access restrictions
11. Monitoring, Review, Audit and Continuous Improvement
  • • Failure to systematically monitor the effectiveness of WHS controls for geotechnical investigation activities over the project lifecycle
  • • Limited verification that procedures for soil testing, geophysical surveys, groundwater monitoring and subsidence tracking are being followed in practice
  • • Inadequate performance indicators for geotechnical WHS risks, resulting in blind spots for management
  • • Lack of structured review of monitoring data (e.g. subsidence trends, groundwater variations, near misses) to identify emerging systemic issues
  • • Audit processes that exclude or give limited coverage to geotechnical-specific WHS controls and management systems

Need to add specific hazards for your workplace?

Don't worry if a specific hazard isn't listed above. Once you purchase, simply log in to your Client Portal and add your own custom hazards at no extra cost. We take care of the hard work—creating the risk ratings and control measures for free—to ensure your document is compliant within minutes.

Legislation & References

This document was researched and developed to align with:

  • Work Health and Safety Act 2011
  • Work Health and Safety Regulations 2017
  • AS/NZS ISO 31000:2018: Risk management — Guidelines
  • AS 1726:2017: Geotechnical site investigations — Requirements for planning, execution and reporting of investigations.
  • AS 4482 (Series): Guide to the investigation and sampling of contaminated soil — Management of contamination risk during geotechnical works.
  • AS 2758 (Series): Aggregates and rock for engineering purposes — Guidance on material quality and testing interfaces with geotechnical assessment.
  • AS/NZS ISO 45001:2018: Occupational health and safety management systems — Requirements with guidance for use.
  • Safe Work Australia Codes of Practice: Including “How to Manage Work Health and Safety Risks”, “Managing the Risk of Plant in the Workplace” and “Managing the Work Environment and Facilities”.
  • Relevant State/Territory WHS and Environmental Legislation: Including requirements for ground disturbance, drilling, groundwater protection and contaminated land management.
Standard Risk Assessment Features (Click to Expand)
  • Comprehensive hazard identification for all activities
  • Risk rating matrix with likelihood and consequence analysis
  • Existing control measures evaluation
  • Residual risk assessment after controls
  • Hierarchy of controls recommendations
  • Action priority rankings
  • Review and monitoring requirements
  • Consultation and communication records
  • Legal compliance references
  • Sign-off and approval sections

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