Phase 2 Detailed Site Investigations (DSI)
When a Phase 1 investigation suspects or confirms contamination, a Phase 2 Detailed Site Investigation provides the clarity you need to move your project forward. Through strategic intrusive sampling and analysis, we characterise your site, determine the nature and extent of contamination, and deliver actionable insights that align with your project goals.
We conduct site investigations across a wide range of sectors, including:
- Property development and acquisitions
- Local councils and government agencies
- Industrial and manufacturing
- Infrastructure and transport
- Investment and environmental due diligence
Whether you’re acquiring, divesting, redeveloping, or managing existing operations, we tailor our assessments to your specific objectives.
Email us at info@egau.com.au for a site investigation quote today.
Why Site Investigations Matter
Redevelopment, acquisition, or change of land use all come with environmental responsibilities. A detailed site investigation helps you:
- Thoroughly characterise soil, groundwater, and potential contaminants, including subtle or legacy risks
- Identify all environmental constraints and hazard that could impact development, operations or regulatory approvals
- Demonstrate due diligence to regulators, investors, and stakeholders
- Support precise remediation or management strategies, tailored to site-specific conditions
- Confirm whether a site is suitable for its intended future use, backed by comprehensive technical data
EGA combines technical expertise with a practical, outcome-driven approach, so you get clear answers rather than just data.
Our Site Investigation Services
We support clients at every stage of the contaminated land assessment process, from initial desktop studies to intrusive investigations and follow-on remediation.
- Phase 1 Preliminary Site Investigation (PSI)
- Phase 2 Detailed Site Investigation (DSI)
- Integration with Remediation Strategy and Site Validation
- Support for Due Diligence and Planning Approvals
What’s Included in a Detailed Site Investigation:
- Review of site history, Phase 1 findings and historical aerial imagery
- Identification of contaminants of concern and potential exposure pathways
- Targeted intrusive sampling program to characterise site conditions (e.g. soil and groundwater, where relevant)
- Laboratory analysis and interpretation to define the nature and extent of contamination (if present)
- Clear conclusions on land-use suitability and practical recommendations for further action
Why Choose EGA for Site Investigations?
Creative approaches to complex sites
We provide creative approaches to managing contaminated sites, delivering tailored strategies that align with your project goals and constraints.
End-to-end capability
From site investigations through to remediation, site validation, waste classification, and environmental management documentation, we offer integrated support.
Regulatory confidence
Our team is experienced in working with local councils, state regulators, and planning authorities, ensuring your assessments stand up to scrutiny.
What you receive:
A comprehensive DSI report that:
- Presents laboratory results and contamination assessment against relevant guidelines
- Maps the nature, extent, and distribution of contamination (if present)
- Provides quantitative risk assessment and land-use suitability evaluation
- Delivers clear, actionable recommendations for remediation, management, or validation
The report normally takes between three and four weeks to prepare, depending on laboratory turnaround times and project complexity.
Email us at info@egau.com.au for an asbestos testing quote today.
