Soils Report vs. Geotechnical Report: Are They the Same Thing?

In practice, yes — 'soils report' is the older colloquial term for what the industry now calls a geotechnical report: a licensed engineer's investigation of subsurface conditions with foundation recommendations. The terminology doesn't matter; the content does. The confusion persists because building departments, old-timers, and plan checklists use both terms interchangeably. When the checklist says 'soils report required,' it means a geotechnical investigation by a licensed engineer — not a shovel, not an opinion, not your contractor's confidence about the dirt.

Reports vary enormously in usefulness, and the variation has nothing to do with what they're called. A thin report has two shallow borings, generic textbook discussion, and recommendations hedged into uselessness. A good report has a boring program matched to your structure, real lab data, and specific numbers: bearing capacities, settlement estimates, lateral pressures, seismic parameters. The other thing the name hides is scope. Some 'soils reports' cover only foundation recommendations; the project also needs earthwork guidance, drainage recommendations, and pavement sections. Scope the investigation against the whole project — foundations, slabs, retaining walls, pavements — not just the footing question.

The quality of the report is set before the drill rig arrives. How to scope it correctly.

• Hire a licensed geotechnical engineer — verify the PE or GE stamp the building department will require
• Share the structural concept: building size, loads, foundation type, and excavation depth drive the boring program
• Require site-specific borings or test pits — no report without actual investigation of your ground
• Demand numbered recommendations: bearing values, settlement, lateral pressures, seismic site class
• Include earthwork, drainage, and pavement scope — not just the foundation question
• Keep the geotechnical engineer through design for foundation plan review and construction observation