Ground investigations that consolidate design, reduce waste costs and de-risk construction.
Our Phase 2 Site Investigations are developed with a clear understanding that intrusive works are not an end in themselves. They exist to enable design, inform engineering decisions and reduce construction-stage risk and cost.
We manage investigations around the specific questions a project needs to answer:
By aligning intrusive works to these objectives, we generate data that consolidates structural, civil, geotechnical and environmental design inputs into a single, informed ground model.
This avoids fragmented investigations, reduces late design change, and provides the technical foundation needed to progress confidently into earthworks, remediation and construction.
For project specific advice
Investigation scopes are built around how the data will be used: to inform foundation design, earthworks strategy, reuse planning and remediation options.
Intrusive works are coordinated with demolition, earthworks & reuse objectives so results directly support alternative earthworks designs, material retention strategies & construction build-ups.
Investigations are structured to address contamination risk, geotechnical conditions, earthworks feasibility, mining risk and foundation requirements in a coordinated programme.
Effort is focused where uncertainty actually affects design, cost or programme, avoiding unnecessary drilling while ensuring critical risks are properly characterised.
A Phase 2 Site Investigation involves intrusive works such as boreholes, trial pits and monitoring installations to verify ground conditions and quantify risk.
It provides the critical ground and environmental data required for:
A well-designed Phase 2 investigation is not simply about collecting samples. It is about gathering the right data, in the right locations, to support coordinated design decisions and avoid downstream construction risk.
The scope is always tailored to each site, but may include:
A Phase 2 investigation is the technical bridge between early risk screening and detailed project execution.
Targeted intrusive works resolve the potential risks identified in Phase 1. This is the empirical data needed to move from assumptions to technical certainty, allowing for more accurate project costing.
Phase 2 data provides the definitive geotechnical and environmental parameters required to consolidate structural, civil, and foundation designs. This ensures that engineering solutions are proportionate to the actual ground conditions.
The investigation provides the physical and chemical evidence to support alternative earthworks designs, reuse strategies and remediation option appraisal.
Investigation reporting is essential to satisfy contaminated land and ground risk conditions. We provide the technical evidence required by Local Authorities and the Environment Agency to clear pre-commencement hurdles.
By quantifying ground risk early, Phase 2 data reduces the likelihood of “abnormal” cost claims during construction. It informs procurement, provides clarity for contractor pricing, and supports safe, efficient site methodologies.
We align Phase 1 findings with your commercial objectives to define a targeted, site-specific scope, so that every borehole and trial pit is positioned to address specific contamination, geotechnical, or stability risks.
Management of all intrusive works, sampling, monitoring installation and laboratory testing to provide high-quality data for definitive technical interpretation.
Development of ground models, risk assessments and engineering interpretation. The clarity you need, to satisfy regulators and inform engineering decisions.
Ongoing technical input to support foundation design, earthworks strategy, remediation planning and materials management.
We provide the expertise to simplify complex challenges for faster approvals of tough planning requirements.
Still have any questions about Phase 2 Site Investigations or planning?
Not necessarily. They are triggered when a Phase 1 assessment identifies uncertainties that may affect your design, budget, or safety. A Phase 2 is essential to quantify them and remove the guesswork.
We provide the definitive geotechnical parameters, such as bearing capacity and settlement characteristics, required for foundation design, earthworks proposals and construction buildability. By providing accurate data early, we help engineers avoid over-designed (and over-priced) structural solutions.
Yes, significantly. Without Phase 2 data, material is often classified conservatively, leading to high disposal fees. Our testing allows for precise chemical and physical classification, which can largely reduce off-site disposal and import.
Yes. Where relevant, investigation scopes address coal mining legacy, ground instability and associated risks.
Yes. Phase 2 investigations are structured to directly support remediation design, reuse strategies and earthworks optimisation. This helps ensure your earthworks strategy is both regulatory-compliant and commercially optimised.
