Source Zone Treatment - Contaminants in Bedrock Package

This resource package focuses on technology solutions for bedrock source zones, where fracture networks and rock matrix storage can make conventional remedies unreliable. It highlights how TerraTherm’s thermal remediation, especially Thermal Conduction Heating (TCH), can overcome delivery limitations and achieve effective mass removal in fractured bedrock settings.

Why It Matters

In bedrock, contaminant mass is difficult to reach and even harder to remove consistently because fractures control flow while the rock matrix stores contamination over time. TCH provides a dependable way to heat the treatment zone, mobilize contaminants, and capture vapors under vacuum, reducing rebound risk and supporting long-term plume reduction.

What You’ll Learn in the Brochure

• Why fractured bedrock is challenging to remediate and how TCH addresses amendment delivery limitations with conductive heating
  
  
• How thermal treatment works for bedrock, including heater well layout, heating to target temperatures (often up to boiling), fracture-driven vapor recovery, and vacuum extraction capture
  
  
• Key design and performance considerations in bedrock, including porosity/saturation effects, heater spacing, vapor recovery points, and preventing unwanted condensation
  
  
• Selected bedrock experience and outcomes, including deep bedrock remediation examples (up to ~170 ft) and documented mass removal, achievement of cleanup goals, and no rebound in follow-up monitoring