Product Overview

Summary: This SOP sets out a clear, practical framework for controlling dust during drilling operations, protecting workers from harmful airborne contaminants and maintaining compliance with Australian WHS requirements. It standardises dust suppression methods across sites, helping you minimise exposure to respirable crystalline silica and other drilling-related dusts while keeping productivity on track.

Uncontrolled dust generated during drilling activities poses a serious health risk, particularly through exposure to respirable crystalline silica and other fine particulates. In addition to long‑term respiratory diseases such as silicosis and COPD, poor dust control can reduce visibility, contaminate nearby work areas, and lead to regulatory non‑compliance. This Dust Suppression in Drilling Operations SOP provides a structured, step‑by‑step approach to planning, implementing, and monitoring effective dust controls across mining, quarrying, civil, and construction drilling environments.

The procedure outlines how to select and use appropriate dust suppression methods – including water injection, misting systems, local exhaust ventilation, shrouds, and administrative controls – tailored to your specific drilling plant and ground conditions. It clarifies roles and responsibilities, pre‑start checks, operational controls, and housekeeping requirements, and integrates with your broader WHS management system and exposure monitoring program. By adopting this SOP, organisations can demonstrate due diligence under Australian WHS legislation, reduce the risk of health‑related claims and enforcement action, and provide workers with clear, consistent instructions for maintaining a safer, cleaner drilling work area.

Key Benefits

• Reduce worker exposure to respirable crystalline silica and other hazardous dusts generated during drilling.
• Ensure demonstrable compliance with WHS regulations, exposure standards, and industry best practice for dust control.
• Standardise dust suppression methods across multiple sites, contractors, and drilling rigs for consistent performance.
• Minimise secondary risks such as reduced visibility, slip hazards from dust build‑up, and contamination of adjacent work areas.
• Support effective worker training, consultation, and supervision around dust hazards and control measures.

Who is this for?

• Drilling Supervisors
• Site Supervisors
• WHS Managers
• Project Managers
• Drill and Blast Engineers
• Drill Rig Operators
• Quarry Managers
• Mining Production Supervisors
• Civil Construction Managers
• Health and Safety Representatives (HSRs)

Hazards Addressed

• Inhalation of respirable crystalline silica (RCS) and other respirable dusts
• Long‑term respiratory illness (silicosis, COPD, lung cancer)
• Irritation to eyes, nose, throat, and skin from airborne particulates
• Reduced visibility around drilling rigs due to dust plumes
• Dust accumulation on walking and working surfaces leading to slips and trips
• Dust ingress into plant and equipment causing premature wear or failure
• Environmental dust nuisance impacting neighbouring properties or public areas

Included Sections

• 1.0 Purpose and Scope
• 2.0 Definitions and Abbreviations (including RCS and airborne contaminant terminology)
• 3.0 Roles, Responsibilities and Competency Requirements
• 4.0 Applicable Legislation, Standards and Supporting Documents
• 5.0 Hazard Identification – Dust Generation in Drilling Operations
• 6.0 Hierarchy of Control for Dust Suppression
• 7.0 Pre‑Start Planning and Risk Assessment for Drilling Activities
• 8.0 Required Plant, Equipment and Dust Suppression Systems
• 9.0 Personal Protective Equipment (PPE) Requirements
• 10.0 Step‑by‑Step Dust Suppression Procedure During Drilling
• 11.0 Housekeeping, Clean‑up and Waste Management of Dust and Slurry
• 12.0 Air Monitoring, Inspection and Maintenance of Controls
• 13.0 Health Monitoring and Reporting of Dust‑Related Concerns
• 14.0 Emergency Procedures for Loss or Failure of Dust Controls
• 15.0 Training, Induction and Consultation with Workers
• 16.0 Recordkeeping, Documentation and Continuous Improvement
• 17.0 Revision History and Document Control

Legislation & References

• Model Work Health and Safety Act
• Model Work Health and Safety Regulations – Hazardous chemicals and airborne contaminants
• Safe Work Australia – Workplace exposure standards for airborne contaminants (including respirable crystalline silica)
• Safe Work Australia – Guide to managing risks of exposure to respirable crystalline silica (RCS) in the workplace
• Safe Work Australia – Code of Practice: Managing the work environment and facilities
• Safe Work Australia – Code of Practice: How to manage work health and safety risks
• AS/NZS 1715: Selection, use and maintenance of respiratory protective equipment
• AS/NZS 1716: Respiratory protective devices
• AS/NZS 1269 series: Occupational noise management (where water and suppression systems interact with noise controls)
• AS/NZS ISO 45001: Occupational health and safety management systems