Phase 2 Contamination Investigation
A Phase 2 Site Investigation uses intrusive techniques such as borehole drilling and trial pitting, combined with soil sampling and testing, to determine if the Phase 1 Desk Study indication that there may be potential contamination is correct. The site investigation will verify if pollutant linkages are present in the soil.
This intrusive investigation and interpretive report will identify significant risks and remedial requirements to support and satisfy planning conditions from the local planning authority.
The Phase 2 investigation will typically assess risks to the water environment (controlled waters), human health, vapour, and ground gas. The output from Phase 1 and Phase 2 assessment and ground investigation allow our team to design effective remedial solutions, ensuring your build proceeds as planned.
Phase 2 Contamination Site Investigations are often required for the following:
- Environmental Monitoring
- Site Pre-Purchase Due Diligence Studies
- Contaminated Land Assessments
- Mine gas risk assessments
- Remediation Design and Validation
- Asbestos Soil Risk Assessment
- Environmental Management Audit
Contamination Site Investigation Techniques
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.
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.
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