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Geotechnical Drilling

We offer comprehensive geotechnical drilling for site investigation and engineering studies, delivering precise, reliable data essential for informed engineering and construction decisions. Our expertise spans soil sampling, packer testing and other advanced investigative methods, ensuring accurate data collection that supports safe and efficient project planning. We operate with strict adherence to quality assurance protocols and safety standards, minimising risk and ensuring compliance with regulatory requirements.

Our highly trained teams are equipped with specialised rigs and tools to perform Standard Penetration Tests (SPTs), U63 sampling, push tube sampling, permeability testing and monitoring well installations in diverse and challenging ground conditions. Whether supporting major infrastructure projects, mining operations, or environmental studies, we provide geotechnical services that deliver clear, actionable results. Our ability to work effectively in remote locations, combined with a meticulous approach to logging and reporting, ensures our clients receive consistent, high-quality data to underpin project design, construction and long-term asset performance.

SPTs & U63 Sampling

CDHD performs Standard Penetration Tests (SPTs) and U63 sampling to assess soil strength, composition and density for engineering and geotechnical investigations. These standardised testing methods provide dependable data for construction design, risk analysis and compliance reporting.

With a focus on consistent sample recovery and detailed data capture, our team supports clients with results that enhance understanding of site conditions. This service is suited for infrastructure development, resource projects and environmental studies requiring reliable soil classification and stratigraphy across diverse ground conditions.

Push Tube & Packer Testing

Our push tube sampling and packer testing services provide accurate measurements of soil permeability and formation integrity. These tools support geotechnical investigations where hydrogeological behaviour or ground response is critical for project planning and execution.

CDHD’s team applies proven methodologies and quality-controlled procedures to ensure data is dependable and compliant with engineering standards. This service enables safe design outcomes in civil and infrastructure projects by identifying fluid movement, pressure response and structural properties in both shallow and deep geological settings.

Monitoring Well Installation

CDHD installs monitoring wells to support ongoing assessment of groundwater behaviour, hydrogeological change and site-specific environmental risk. These wells are built to high standards and offer long-term data collection for compliance reporting, water resource management or environmental monitoring. Designed to function in remote or technically complex locations, our installation methods prioritise consistency, containment and durability.

Clients benefit from accurate long-term insights that underpin regulatory obligations and guide sustainable decision-making for infrastructure, resource and environmental project lifecycles.

Sampling Logs & QA

We deliver accurate and comprehensive sampling logs supported by strict quality assurance procedures to ensure all core and soil data is traceable, compliant and aligned with engineering requirements.

CDHD’s QA systems govern how geological and geotechnical samples are described, recorded and reported. Each log serves as a dependable reference that informs structural analysis, material classification and site response modelling. This level of quality control is essential for infrastructure and resource projects requiring auditable data and clear reporting for regulatory and technical standards.

Capability Statement

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