Unlocking Critical Data in Hard‑to‑Reach Places.

Not every project site is wide open and easy to access. Urban infill lots, rugged terrain, and confined indoor spaces often make conventional drilling impossible. That’s where Sandia Geotechnical Services (Sandia GEO) comes in. With specialized limited‑access drilling rigs, we deliver the same high‑quality subsurface data you’d expect from a full‑sized rig — even in the most challenging locations.

Why Limited Access Drilling Matters 

Accurate geotechnical data is the foundation of safe, cost‑effective design. Relying on hand sampling or probing methods in restricted areas may seem convenient, but it often results in: 

• Shallow depth limitations that miss critical soil layers

• Lower‑quality samples that reduce the accuracy of lab testing 

• No Standard Penetration Testing (SPT)

By contrast, limited access drilling allows us to collect deeper, higher‑quality samples and perform SPT testing — giving engineers the reliable data they need to design with confidence.

Applications

Our compact rigs are designed to perform in environments where larger equipment cannot:

• Urban and Industrial Sites – Access beneath existing structures or within densely built areas

• Steep or Remote Terrain – Safely investigate slopes and rugged landscapes

• Environmentally Sensitive Areas – Minimize disturbance with low‑impact equipment

Benefits of Choosing Sandia GEO

• Comprehensive Data – High‑quality, site‑specific information for better design decisions

• Reduced Risk – Avoid costly surprises by understanding subsurface conditions upfront

• Regional Expertise – Decades of experience with New Mexico and Arizona’s unique soils

• Efficient Solutions – Specialized rigs that save time without sacrificing accuracy

Don’t compromise on data just because your site is hard to reach. Contact Sandia Geotechnical Services today to schedule a Limited Access Geotechnical Drilling investigation and ensure your project is built on reliable information.