Phase 2 Site Investigation

Phase 2  Site Investigation Reports provide insight into ground-related risks for your project. This report not only fulfills regulatory requirements but also ensures accurate information is used for the design of your projects foundations.

Environmental concerns, including land contamination, controlled waters, and ground gas, are also addressed within the findings.

The output from Phase 1 and Phase 2  assessment and ground investigation allow our team to design effective solutions, ensuring your build proceeds as planned.

Phase 2 Site Investigations are often required for the following:

  • Environmental Monitoring
  • Slope Stability Assessments
  • Site Pre-Purchase Due Diligence Studies
  • Contaminated Land Assessments
  • Foundation Design
  • Subsidence Surveys
  • Asset Surveys
  • Mining Survey
  • Remediation Design and Validation
  • Asbestos Soil Risk Assessment
  • Environmental Management Audit

Ground Investigation Techniques

Site Investigation Trial Pits

Trial Pits

Utilized for sub-surface site investigations, Trial Pits play a crucial role in examining soil, rocks, and groundwater. Conducted prior to construction, these pits provide insights into the site’s geology and water table. Ranging from 1 to 4 meters in depth, Trial Pits are essential for comprehensive assessments.


Rotary Drilling

In order to collect soil. rock strata samples, and create deep observation boreholes, rotary drilling is used. This technique is particularly effective in dense soils and rock, allowing in-depth analysis of sub-surface ground conditions up to a depth of 100 meters.

site investigation boreholes


Boreholes offer in-depth soil profile investigations up to 50 meters deep. Cutting heads are chosen for particular soil types, while chisel heads are used for rock and hard layers. Shell heads are used for granular soils, and clay cutters for softer cohesive soils.