Scout's Toolbox Talks

Soil Classification Basics

Toolbox Talk:

Competent Person = Soil Expert

June 22, 2025

Soil classification isn’t a guess — it’s a skill. And only the trained should do it.

Why It Matters:

If the wrong person calls the soil type, the wrong protection may follow. That’s how collapses happen. OSHA requires a Competent Person for a reason — they’re trained to protect lives.

Key Points:

  • A Competent Person must be trained in soil mechanics and trench safety.
  • They must be authorized to stop work and make safety calls.
  • Must be onsite and involved during all trenching operations.
  • Responsible for testing, classifying, and re-evaluating soil conditions as needed.

Don’t guess the soil type — get it from the expert.

Ask the Crew:

  • Who is our Competent Person today?
  • Are they actively testing and checking conditions?
  • Do we trust their authority to make the call?