Soil Sampling

Real strength below the surface

Strategic Soil Solutions through Soil Sampling

Here is how the hidden strength of soil can be unlocked for strong foundations and top-notch projects - our Whangarei soil sampling services involve the collection and analysis of soil samples from a specific area or site.


This soil collection process is essential for understanding the physical and mechanical properties of the ground. The data obtained is used by geotechnical engineers to inform foundation design, earthworks, and consent applications for construction and infrastructure projects.

Having a Whangarei soil sampling service done can provide you with insights about a soil's various aspects, through:

Soil profile and geology cross-section from geotechnical investigation

Depth-Specific Sampling

Targets specific soil depths to understand variations in characteristics at different layers.

CPT and geotechnical soil testing in Northland

Grid Soil Sampling

We divide the area into a grid, systematically collecting samples to create a comprehensive spatial analysis of soil properties.

CPT and geotechnical soil testing in Northland

Coring or Auger Sampling

We use specialised tools to extract cylindrical soil cores, preserving the vertical structure for detailed analysis.

Geotechnical engineer conducting soil assessment in Northland

Moisture Content Sampling

Focuses on assessing the moisture content of the soil, critical for consolidation analysis, compaction assessment, and slope stability investigations.

Bridging the Gap Between Soil and Success


Here at Soil + Sample, we offer a comprehensive array of soil sampling tests designed to give you a clear idea of what's beneath the surface. Our tailored services encompass routine and precision techniques, including depth-specific, grid, and composite sampling. From targeted assessments for contaminants to in-depth analyses of soil texture, moisture, and microbial health, we offer a suite of specialised tests for various locations and industries in Whangarei.

Ensure the success of your projects with our precise soil sampling insights:

Random Sampling

Involves collecting samples from various locations without a predefined pattern, useful for assessing overall site variability.

Zone Soil Sampling

Divides the site into distinct zones based on characteristics, optimising sampling efforts for specific areas of interest.

Targeted Sampling for Contaminants

Focuses on areas suspected of contamination, crucial for environmental assessments and remediation planning.

Time-Series Sampling

Involves repeated sampling over time to monitor changes in soil properties, beneficial for long-term studies and trend analysis.

In-Situ Sampling

Conducts analysis directly in the field without removing soil samples, often used for quick assessments of certain properties.

Soil Erosion Sampling

Assesses soil loss and degradation, supporting erosion control measures and sustainable land management.

FAQs – Soil Sampling

Soil + Sample has the answers to your most pressing questions concerning this effective geotechnical technique called Soil Sampling. Despite the occasional technicality, we take great pleasure in describing our work.

1. How is soil sampling conducted?

Our Whangarei soil sampling involves using specialised tools to extract samples from various depths. The samples are then carefully analysed for physical, chemical, and biological properties. The collection method may vary based on the specific objectives of the sampling.

2. What information can I gain from soil sampling?

Geotechnical soil sampling provides information on soil composition, moisture content, density, particle size distribution, plasticity, and shear strength. This data is essential for foundation design, settlement analysis, and land development consent reports.

3. How often should soil sampling be performed?

The frequency of soil sampling depends on the specific requirements of the project. For geotechnical investigations, sampling typically occurs during the initial site investigation phase, with additional sampling as needed throughout design development or during construction monitoring.

4. Can soil sampling help with environmental assessments?

Yes, soil sampling is a key component of environmental assessments. It helps identify and quantify contaminants in the soil, assess soil quality, and develop strategies for remediation and sustainable land management.

5. Is there a specific season or time for optimal soil sampling?

The optimal time for soil sampling can vary based on the objectives. Construction projects may require initial sampling during the planning phase, while environmental assessments may consider seasonal variations in contaminant mobility.

Precision in Every Soil Particle

Our Soil Tests Lead the Way in Whangarei

From soft estuarine clays to dense volcanic profiles, our tracked testing rig reaches sites that conventional equipment cannot — including steep slopes, marshy ground, and areas with restricted access. Single-operator capability keeps your investigation efficient without compromising data quality.