Product Overview

Summary: This Soil Preparation Safe Operating Procedure sets out a safe, consistent method for assessing, handling and preparing soil for landscaping, horticultural, agricultural and civil works. It helps Australian workplaces manage contamination, manual handling and plant-related risks while achieving reliable soil quality for long‑term project performance.

Soil preparation is a critical foundation activity for landscaping, turf establishment, planting, earthworks and civil projects. Done poorly, it can lead not only to plant failure, drainage issues and rework, but also to significant safety and environmental risks such as exposure to contaminated soils, dust inhalation, manual handling injuries and unsafe interaction with earthmoving equipment. This Soil Preparation Safe Operating Procedure provides a clear, WHS-aligned framework for planning and carrying out soil preparation tasks safely and efficiently in Australian conditions.

The SOP guides workers through site assessment, soil testing, identification of underground services, mechanical cultivation, addition of soil amendments and compaction, all with a strong focus on hazard identification and control. It addresses how to manage contaminated or imported soils, control dust, segregate pedestrian and plant movements, and use tools and machinery such as rotary hoes, tillers, compactors and skid steers safely. By implementing this procedure, businesses can reduce incidents, improve compliance with WHS and environmental obligations, and deliver consistent, high-quality soil preparation outcomes across multiple sites and teams.

Key Benefits

• Ensure soil preparation activities are carried out in line with Australian WHS duties and environmental expectations.
• Reduce the risk of injuries from manual handling, plant–person interaction and exposure to dust or contaminated soils.
• Standardise soil assessment, testing and preparation steps across crews, improving quality and project consistency.
• Minimise costly rework, plant failure and drainage issues through a structured, evidence-based preparation process.
• Support faster onboarding and training of new staff with clear, step-by-step instructions and defined responsibilities.

Who is this for?

• Landscaping Supervisors
• Grounds Maintenance Teams
• Civil Construction Supervisors
• Horticulture and Nursery Managers
• Parks and Gardens Coordinators
• WHS Advisors and Safety Officers
• Site Managers and Forepersons
• Environmental Officers
• Irrigation and Turf Installation Contractors

Hazards Addressed

• Exposure to contaminated or potentially contaminated soil (e.g. heavy metals, asbestos-containing material, chemicals)
• Inhalation of dust and organic particulates during soil cultivation, spreading and compaction
• Manual handling injuries from shovelling, raking, barrowing and moving soil, aggregates and amendments
• Musculoskeletal strain from repetitive tasks and awkward postures while levelling and raking
• Plant–person interaction risks when working around excavators, skid steers, tractors and compactors
• Slips, trips and falls on uneven, freshly excavated or unstable ground
• Noise and vibration exposure from powered tools and compaction equipment
• Striking underground services (gas, water, power, communications) during excavation or cultivation
• Use of soil conditioners, fertilisers and wetting agents that may be hazardous chemicals
• Heat stress, sun exposure and dehydration during outdoor soil preparation work

Included Sections

• 1.0 Purpose and Scope
• 2.0 Definitions and Abbreviations
• 3.0 Applicable Legislation, Standards and Codes of Practice
• 4.0 Roles and Responsibilities
• 5.0 Pre-Start Planning and Site Assessment
• 6.0 Identification of Underground Services and Existing Assets
• 7.0 Soil Assessment, Testing and Classification
• 8.0 Required Tools, Plant and Equipment
• 9.0 Personal Protective Equipment (PPE) Requirements
• 10.0 Hazard Identification and Risk Controls
• 11.0 Step-by-Step Soil Preparation Procedure
• 12.0 Working with Machinery and Mobile Plant
• 13.0 Handling and Application of Soil Amendments and Chemicals
• 14.0 Dust, Noise and Environmental Management Controls
• 15.0 Manual Handling and Ergonomic Practices
• 16.0 Management of Contaminated or Suspect Soil
• 17.0 Housekeeping, Waste Disposal and Site Restoration
• 18.0 Emergency Procedures and Incident Reporting
• 19.0 Training, Competency and Supervision Requirements
• 20.0 Document Control, Review and Continuous Improvement

Legislation & References

• Work Health and Safety Act 2011 (Cth) and harmonised state and territory WHS Acts
• Work Health and Safety Regulations 2011 (Cth) and equivalent state and territory regulations
• Safe Work Australia – Excavation Work Code of Practice
• Safe Work Australia – Managing Risks of Hazardous Chemicals in the Workplace Code of Practice
• Safe Work Australia – How to Manage Work Health and Safety Risks Code of Practice
• AS/NZS 1715: Selection, use and maintenance of respiratory protective equipment
• AS/NZS 2161: Occupational protective gloves
• AS/NZS 2210: Occupational protective footwear
• AS 4482.1: Guide to the investigation and sampling of sites with potentially contaminated soil
• Dial Before You Dig / Before You Dig Australia (BYDA) service requirements for locating underground services