Soil Vapor Extraction Calculator

Size an SVE system: extraction well spacing, airflow rates, and blower sizing for VOC removal.

Treatment zone length (m)

Treatment zone width (m)

Vadose zone thickness (m)

Air permeability (m²)

Total porosity

Volumetric moisture content

Applied vacuum (in H₂O)

Tab to move between fields

Radius of influence (m)

Well spacing (m)

Extraction wells needed

Total airflow (CFM)

Treatment area (m²)1,000

Air pore volume (m³)1,488

Airflow per well (CFM)3

Blower size (HP)0.2

Air-filled porosity0.3

Est. daily VOC removal (kg)0.07

How to Use This Calculator

Enter treatment zone dimensions (length, width, vadose zone thickness in meters).
Set air permeability (m²) and total porosity from soil boring or pneumatic testing data.
Enter initial and target contaminant concentrations to size the vapor extraction system.
Review the calculated radius of influence (ROI), well spacing, and total number of extraction wells.
Check estimated air pore volume and vacuum blower requirements for equipment selection.

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