Soil Testing Services for Geotechnical Engineering

RSA Geolab provides standards-based soil testing services for geotechnical engineering, construction, and environmental projects. Our laboratory delivers accurate, repeatable data to support design, quality control, and regulatory compliance.

With extensive experience and industry-recognized testing methods, we support a wide range of soil types and project requirements. Our team works with engineers, contractors, and environmental professionals to ensure testing aligns with project specifications and timelines.

Our soil testing services support a wide range of applications, including site investigation, foundation design, roadway construction, and environmental assessments. By providing accurate and consistent data, we help ensure projects meet design specifications, regulatory requirements, and long-term performance expectations.

Our Soil Testing Services

Our laboratory performs a full range of soil testing to determine physical and engineering properties. All procedures follow ASTM, AASHTO, and U.S. Army Corps of Engineers standards to ensure consistent and defensible results.

We also perform chemical compatibility and soil stabilization testing, providing flexible solutions for specialized project needs. Whether for site development, infrastructure, or environmental applications, our testing supports informed engineering decisions.

We work with a variety of soil conditions, from cohesive clays to granular materials, and tailor testing approaches based on project needs. Our laboratory is equipped to handle both routine and specialized testing, ensuring flexibility and reliability across a wide range of geotechnical applications.

Soil Testing Capabilities

Liquid and Plastic Limits
Grain Size Distribution
Moisture Content
Specific Gravity
Proctor Compaction (Standard & Modified)
Unconfined Compressive Strength
Consolidation Testing
Unit Weight
Permeability Testing
Recompacted Permeability
Triaxial Shear Testing
Loss on Ignition
Permeability of Materials with Large Particles (e.g., Tire Chips)

Bentonite Testing

Free Swell
Modified Swell Test
Filter Loss (API)
Filter Cake Hydraulic Conductivity
Soil-Bentonite Testing

Submitting Soil Samples

Soil samples can be submitted with a completed chain of custody (COC) form to ensure proper tracking, handling, and efficient processing.

Providing clear and accurate documentation helps prevent delays and ensures testing is performed in accordance with project requirements and applicable standards.

Download the appropriate chain of custody form to get started.

Download Chain of Custody Forms

Applications of Soil Testing

Soil testing plays a critical role in evaluating site conditions and supporting safe, effective design. Our testing services are commonly used for:

Site investigation and subsurface evaluation
Foundation design and load-bearing analysis
Roadway and infrastructure development
Earthwork and compaction verification
Environmental and containment projects

By understanding soil behavior and engineering properties, project teams can make informed decisions that reduce risk and improve overall performance.

Why Soil Testing Matters

Accurate soil testing is essential for understanding subsurface conditions and minimizing risk during construction and development. Variations in soil composition, moisture content, and density can significantly impact structural performance, drainage, and long-term stability.

By identifying key soil properties early in a project, engineers and project teams can make informed decisions regarding foundation design, material selection, and site preparation. Reliable testing data helps prevent costly issues, reduces uncertainty, and supports safer, more efficient project execution.

Need Help with Soil Testing?

Have questions about testing requirements, sample preparation, or turnaround times? Our team is here to help.